diff options
Diffstat (limited to 'src/mesa/drivers')
| -rw-r--r-- | src/mesa/drivers/x11/xm_api.c | 2624 | ||||
| -rw-r--r-- | src/mesa/drivers/x11/xm_dd.c | 1006 | ||||
| -rw-r--r-- | src/mesa/drivers/x11/xm_line.c | 748 | ||||
| -rw-r--r-- | src/mesa/drivers/x11/xm_span.c | 4447 | ||||
| -rw-r--r-- | src/mesa/drivers/x11/xm_tri.c | 1690 |
5 files changed, 10515 insertions, 0 deletions
diff --git a/src/mesa/drivers/x11/xm_api.c b/src/mesa/drivers/x11/xm_api.c new file mode 100644 index 00000000000..88650d675ad --- /dev/null +++ b/src/mesa/drivers/x11/xm_api.c @@ -0,0 +1,2624 @@ +/* $Id: xm_api.c,v 1.1 2000/09/07 15:40:30 brianp Exp $ */ + +/* + * Mesa 3-D graphics library + * Version: 3.3 + * + * Copyright (C) 1999-2000 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + + +/* + * This file contains the implementations of all the XMesa* functions. + * + * + * NOTES: + * + * The window coordinate system origin (0,0) is in the lower-left corner + * of the window. X11's window coordinate origin is in the upper-left + * corner of the window. Therefore, most drawing functions in this + * file have to flip Y coordinates. + * + * Define USE_XSHM in the Makefile with -DUSE_XSHM if you want to compile + * in support for the MIT Shared Memory extension. If enabled, when you + * use an Ximage for the back buffer in double buffered mode, the "swap" + * operation will be faster. You must also link with -lXext. + * + * Byte swapping: If the Mesa host and the X display use a different + * byte order then there's some trickiness to be aware of when using + * XImages. The byte ordering used for the XImage is that of the X + * display, not the Mesa host. + * The color-to-pixel encoding for True/DirectColor must be done + * according to the display's visual red_mask, green_mask, and blue_mask. + * If XPutPixel is used to put a pixel into an XImage then XPutPixel will + * do byte swapping if needed. If one wants to directly "poke" the pixel + * into the XImage's buffer then the pixel must be byte swapped first. In + * Mesa, when byte swapping is needed we use the PF_TRUECOLOR pixel format + * and use XPutPixel everywhere except in the implementation of + * glClear(GL_COLOR_BUFFER_BIT). We want this function to be fast so + * instead of using XPutPixel we "poke" our values after byte-swapping + * the clear pixel value if needed. + * + */ + +#ifdef __CYGWIN__ +#undef WIN32 +#undef __WIN32__ +#endif + +#include "glxheader.h" +#include "GL/xmesa.h" +#include "xmesaP.h" +#include "context.h" +#include "extensions.h" +#include "glthread.h" +#include "matrix.h" +#include "mem.h" +#include "types.h" +#ifdef HAVE_CONFIG_H +#include "conf.h" +#endif + + +#ifndef GLX_NONE_EXT +#define GLX_NONE_EXT 0x8000 +#endif + + +/* + * Global X driver lock + */ +_glthread_Mutex _xmesa_lock; + + + +/* + * Lookup tables for HPCR pixel format: + */ +static short hpcr_rgbTbl[3][256] = { +{ + 16, 16, 17, 17, 18, 18, 19, 19, 20, 20, 21, 21, 22, 22, 23, 23, + 24, 24, 25, 25, 26, 26, 27, 27, 28, 28, 29, 29, 30, 30, 31, 31, + 32, 32, 33, 33, 34, 34, 35, 35, 36, 36, 37, 37, 38, 38, 39, 39, + 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, + 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, + 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, + 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, + 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, +112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, +128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, +144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, +160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, +176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, +192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, +208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, +224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239 +}, +{ + 16, 16, 17, 17, 18, 18, 19, 19, 20, 20, 21, 21, 22, 22, 23, 23, + 24, 24, 25, 25, 26, 26, 27, 27, 28, 28, 29, 29, 30, 30, 31, 31, + 32, 32, 33, 33, 34, 34, 35, 35, 36, 36, 37, 37, 38, 38, 39, 39, + 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, + 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, + 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, + 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, + 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, +112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, +128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, +144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, +160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, +176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, +192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, +208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223, +224, 225, 226, 227, 228, 229, 230, 231, 232, 233, 234, 235, 236, 237, 238, 239 +}, +{ + 32, 32, 33, 33, 34, 34, 35, 35, 36, 36, 37, 37, 38, 38, 39, 39, + 40, 40, 41, 41, 42, 42, 43, 43, 44, 44, 45, 45, 46, 46, 47, 47, + 48, 48, 49, 49, 50, 50, 51, 51, 52, 52, 53, 53, 54, 54, 55, 55, + 56, 56, 57, 57, 58, 58, 59, 59, 60, 60, 61, 61, 62, 62, 63, 63, + 64, 64, 65, 65, 66, 66, 67, 67, 68, 68, 69, 69, 70, 70, 71, 71, + 72, 72, 73, 73, 74, 74, 75, 75, 76, 76, 77, 77, 78, 78, 79, 79, + 80, 80, 81, 81, 82, 82, 83, 83, 84, 84, 85, 85, 86, 86, 87, 87, + 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, + 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106, 107, 108, 109, 110, 111, +112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122, 123, 124, 125, 126, 127, +128, 129, 130, 131, 132, 133, 134, 135, 136, 137, 138, 139, 140, 141, 142, 143, +144, 145, 146, 147, 148, 149, 150, 151, 152, 153, 154, 155, 156, 157, 158, 159, +160, 161, 162, 163, 164, 165, 166, 167, 168, 169, 170, 171, 172, 173, 174, 175, +176, 177, 178, 179, 180, 181, 182, 183, 184, 185, 186, 187, 188, 189, 190, 191, +192, 193, 194, 195, 196, 197, 198, 199, 200, 201, 202, 203, 204, 205, 206, 207, +208, 209, 210, 211, 212, 213, 214, 215, 216, 217, 218, 219, 220, 221, 222, 223 +} +}; + + + +/**********************************************************************/ +/***** X Utility Functions *****/ +/**********************************************************************/ + + +/* + * X/Mesa error reporting function: + */ +static void error( const char *msg ) +{ + if (getenv("MESA_DEBUG")) + fprintf( stderr, "X/Mesa error: %s\n", msg ); +} + + +/* + * Return the host's byte order as LSBFirst or MSBFirst ala X. + */ +#ifndef XFree86Server +static int host_byte_order( void ) +{ + int i = 1; + char *cptr = (char *) &i; + return (*cptr==1) ? LSBFirst : MSBFirst; +} +#endif + + +/* + * Error handling. + */ +#ifndef XFree86Server +static int mesaXErrorFlag = 0; + +static int mesaHandleXError( XMesaDisplay *dpy, XErrorEvent *event ) +{ + (void) dpy; + (void) event; + mesaXErrorFlag = 1; + return 0; +} +#endif + + +/* + * Check if the X Shared Memory extension is available. + * Return: 0 = not available + * 1 = shared XImage support available + * 2 = shared Pixmap support available also + */ +#ifndef XFree86Server +static int check_for_xshm( XMesaDisplay *display ) +{ +#ifdef USE_XSHM + int major, minor, ignore; + Bool pixmaps; + + if (XQueryExtension( display, "MIT-SHM", &ignore, &ignore, &ignore )) { + if (XShmQueryVersion( display, &major, &minor, &pixmaps )==True) { + return (pixmaps==True) ? 2 : 1; + } + else { + return 0; + } + } + else { + return 0; + } +#else + /* Can't compile XSHM support */ + return 0; +#endif +} +#endif + + +/* + * Return the width and height of the given drawable. + */ +static void get_drawable_size( XMesaDisplay *dpy, XMesaDrawable d, + unsigned int *width, unsigned int *height) +{ +#ifdef XFree86Server + (void) dpy; + *width = d->width; + *height = d->height; +#else + Window root; + int x, y; + unsigned int bw, depth; + + _glthread_LOCK_MUTEX(_xmesa_lock); + XGetGeometry( dpy, d, &root, &x, &y, width, height, &bw, &depth ); + _glthread_UNLOCK_MUTEX(_xmesa_lock); +#endif +} + + +/* + * Apply gamma correction to an intensity value in [0..max]. Return the + * new intensity value. + */ +static GLint gamma_adjust( GLfloat gamma, GLint value, GLint max ) +{ + if (gamma == 1.0) { + return value; + } + else { + double x = (double) value / (double) max; + return (GLint) ((GLfloat) max * pow( x, 1.0F/gamma ) + 0.5F); + } +} + + + +/* + * Return the true number of bits per pixel for XImages. + * For example, if we request a 24-bit deep visual we may actually need/get + * 32bpp XImages. This function returns the appropriate bpp. + * Input: dpy - the X display + * visinfo - desribes the visual to be used for XImages + * Return: true number of bits per pixel for XImages + */ +#define GET_BITS_PER_PIXEL(xmv) bits_per_pixel(xmv) + +#ifdef XFree86Server + +static int bits_per_pixel( XMesaVisual xmv ) +{ + XMesaVisualInfo visinfo = xmv->visinfo; + const int depth = visinfo->nplanes; + int i; + for (i = 0; i < screenInfo.numPixmapFormats; i++) { + if (screenInfo.formats[i].depth == depth) + return screenInfo.formats[i].bitsPerPixel; + } + return depth; /* should never get here, but this should be safe */ +} + +#else + +static int bits_per_pixel( XMesaVisual xmv ) +{ + XMesaDisplay *dpy = xmv->display; + XMesaVisualInfo visinfo = xmv->visinfo; + XMesaImage *img; + int bitsPerPixel; + /* Create a temporary XImage */ + img = XCreateImage( dpy, visinfo->visual, visinfo->depth, + ZPixmap, 0, /*format, offset*/ + (char*) MALLOC(8), /*data*/ + 1, 1, /*width, height*/ + 32, /*bitmap_pad*/ + 0 /*bytes_per_line*/ + ); + assert(img); + /* grab the bits/pixel value */ + bitsPerPixel = img->bits_per_pixel; + /* free the XImage */ + FREE( img->data ); + img->data = NULL; + XMesaDestroyImage( img ); + return bitsPerPixel; +} +#endif + + + +/* + * Determine if a given X window ID is valid (window exists). + * Do this by calling XGetWindowAttributes() for the window and + * checking if we catch an X error. + * Input: dpy - the display + * win - the window to check for existance + * Return: GL_TRUE - window exists + * GL_FALSE - window doesn't exist + */ +#ifndef XFree86Server +static GLboolean WindowExistsFlag; + +static int window_exists_err_handler( XMesaDisplay* dpy, XErrorEvent* xerr ) +{ + (void) dpy; + if (xerr->error_code == BadWindow) { + WindowExistsFlag = GL_FALSE; + } + return 0; +} + +static GLboolean window_exists( XMesaDisplay *dpy, Window win ) +{ + XWindowAttributes wa; + int (*old_handler)( XMesaDisplay*, XErrorEvent* ); + WindowExistsFlag = GL_TRUE; + old_handler = XSetErrorHandler(window_exists_err_handler); + XGetWindowAttributes( dpy, win, &wa ); /* dummy request */ + XSetErrorHandler(old_handler); + return WindowExistsFlag; +} +#endif + + + +/**********************************************************************/ +/***** Linked list of XMesaBuffers *****/ +/**********************************************************************/ + +static XMesaBuffer XMesaBufferList = NULL; + + +/* Allocate a new XMesaBuffer, add to linked list */ +static XMesaBuffer alloc_xmesa_buffer(void) +{ + XMesaBuffer b = (XMesaBuffer) CALLOC_STRUCT(xmesa_buffer); + if (b) { + b->Next = XMesaBufferList; + XMesaBufferList = b; + } + return b; +} + + +/* + * Find an XMesaBuffer by matching X display and colormap but NOT matching + * the notThis buffer. + */ +static XMesaBuffer find_xmesa_buffer(XMesaDisplay *dpy, + XMesaColormap cmap, + XMesaBuffer notThis) +{ + XMesaBuffer b; + for (b=XMesaBufferList; b; b=b->Next) { + if (b->display==dpy && b->cmap==cmap && b!=notThis) { + return b; + } + } + return NULL; +} + + +/* + * Free an XMesaBuffer, remove from linked list, perhaps free X colormap + * entries. + */ +static void free_xmesa_buffer(int client, XMesaBuffer buffer) +{ + XMesaBuffer prev = NULL, b; + (void) client; + for (b=XMesaBufferList; b; b=b->Next) { + if (b==buffer) { + /* unlink bufer from list */ + if (prev) + prev->Next = buffer->Next; + else + XMesaBufferList = buffer->Next; + /* Check to free X colors */ + if (buffer->num_alloced>0) { + /* If no other buffer uses this X colormap then free the colors. */ + if (!find_xmesa_buffer(buffer->display, buffer->cmap, buffer)) { +#ifdef XFree86Server + (void)FreeColors(buffer->cmap, client, + buffer->num_alloced, buffer->alloced_colors, + 0); +#else + XFreeColors(buffer->display, buffer->cmap, + buffer->alloced_colors, buffer->num_alloced, 0); +#endif + } + } + FREE(buffer); + return; + } + /* continue search */ + prev = b; + } + /* buffer not found in XMesaBufferList */ + gl_problem(NULL,"free_xmesa_buffer() - buffer not found\n"); +} + + +/* Copy X color table stuff from one XMesaBuffer to another. */ +static void copy_colortable_info(XMesaBuffer dst, const XMesaBuffer src) +{ + MEMCPY(dst->color_table, src->color_table, sizeof(src->color_table)); + MEMCPY(dst->pixel_to_r, src->pixel_to_r, sizeof(src->pixel_to_r)); + MEMCPY(dst->pixel_to_g, src->pixel_to_g, sizeof(src->pixel_to_g)); + MEMCPY(dst->pixel_to_b, src->pixel_to_b, sizeof(src->pixel_to_b)); + dst->num_alloced = src->num_alloced; + MEMCPY(dst->alloced_colors, src->alloced_colors, + sizeof(src->alloced_colors)); +} + + + +/**********************************************************************/ +/***** Misc Private Functions *****/ +/**********************************************************************/ + + +/* + * Return number of bits set in n. + */ +static int bitcount( unsigned long n ) +{ + int bits; + for (bits=0; n>0; n=n>>1) { + if (n&1) { + bits++; + } + } + return bits; +} + + + +/* + * Allocate a shared memory XImage back buffer for the given XMesaBuffer. + * Return: GL_TRUE if success, GL_FALSE if error + */ +#ifndef XFree86Server +static GLboolean alloc_shm_back_buffer( XMesaBuffer b ) +{ +#ifdef USE_XSHM + /* + * We have to do a _lot_ of error checking here to be sure we can + * really use the XSHM extension. It seems different servers trigger + * errors at different points if the extension won't work. Therefore + * we have to be very careful... + */ + GC gc; + int (*old_handler)( XMesaDisplay *, XErrorEvent * ); + + b->backimage = XShmCreateImage( b->xm_visual->display, + b->xm_visual->visinfo->visual, + b->xm_visual->visinfo->depth, + ZPixmap, NULL, &b->shminfo, + b->width, b->height ); + if (b->backimage == NULL) { + error("alloc_back_buffer: Shared memory error (XShmCreateImage), disabling."); + b->shm = 0; + return GL_FALSE; + } + + b->shminfo.shmid = shmget( IPC_PRIVATE, b->backimage->bytes_per_line + * b->backimage->height, IPC_CREAT|0777 ); + if (b->shminfo.shmid < 0) { + if (getenv("MESA_DEBUG")) + perror("alloc_back_buffer"); + XDestroyImage( b->backimage ); + b->backimage = NULL; + error("alloc_back_buffer: Shared memory error (shmget), disabling."); + b->shm = 0; + return GL_FALSE; + } + + b->shminfo.shmaddr = b->backimage->data + = (char*)shmat( b->shminfo.shmid, 0, 0 ); + if (b->shminfo.shmaddr == (char *) -1) { + if (getenv("MESA_DEBUG")) + perror("alloc_back_buffer"); + XDestroyImage( b->backimage ); + shmctl( b->shminfo.shmid, IPC_RMID, 0 ); + b->backimage = NULL; + error("alloc_back_buffer: Shared memory error (shmat), disabling."); + b->shm = 0; + return GL_FALSE; + } + + b->shminfo.readOnly = False; + mesaXErrorFlag = 0; + old_handler = XSetErrorHandler( mesaHandleXError ); + /* This may trigger the X protocol error we're ready to catch: */ + XShmAttach( b->xm_visual->display, &b->shminfo ); + XSync( b->xm_visual->display, False ); + + if (mesaXErrorFlag) { + /* we are on a remote display, this error is normal, don't print it */ + XFlush( b->xm_visual->display ); + mesaXErrorFlag = 0; + XDestroyImage( b->backimage ); + shmdt( b->shminfo.shmaddr ); + shmctl( b->shminfo.shmid, IPC_RMID, 0 ); + b->backimage = NULL; + b->shm = 0; + (void) XSetErrorHandler( old_handler ); + return GL_FALSE; + } + + shmctl( b->shminfo.shmid, IPC_RMID, 0 ); /* nobody else needs it */ + + /* Finally, try an XShmPutImage to be really sure the extension works */ + gc = XCreateGC( b->xm_visual->display, b->frontbuffer, 0, NULL ); + XShmPutImage( b->xm_visual->display, b->frontbuffer, gc, + b->backimage, 0, 0, 0, 0, 1, 1 /*one pixel*/, False ); + XSync( b->xm_visual->display, False ); + XFreeGC( b->xm_visual->display, gc ); + (void) XSetErrorHandler( old_handler ); + if (mesaXErrorFlag) { + XFlush( b->xm_visual->display ); + mesaXErrorFlag = 0; + XDestroyImage( b->backimage ); + shmdt( b->shminfo.shmaddr ); + shmctl( b->shminfo.shmid, IPC_RMID, 0 ); + b->backimage = NULL; + b->shm = 0; + return GL_FALSE; + } + + if (b->backimage) { + int height = b->backimage->height; + /* Needed by PIXELADDR1 macro */ + b->ximage_width1 = b->backimage->bytes_per_line; + b->ximage_origin1 = (GLubyte *) b->backimage->data + + b->ximage_width1 * (height-1); + /* Needed by PIXELADDR2 macro */ + b->ximage_width2 = b->backimage->bytes_per_line / 2; + b->ximage_origin2 = (GLushort *) b->backimage->data + + b->ximage_width2 * (height-1); + /* Needed by PIXELADDR3 macro */ + b->ximage_width3 = b->backimage->bytes_per_line; + b->ximage_origin3 = (GLubyte *) b->backimage->data + + b->ximage_width3 * (height-1); + /* Needed by PIXELADDR4 macro */ + b->ximage_width4 = b->backimage->width; + b->ximage_origin4 = (GLuint *) b->backimage->data + + b->ximage_width4 * (height-1); + } + + return GL_TRUE; +#else + /* Can't compile XSHM support */ + return GL_FALSE; +#endif +} +#endif + + + +/* + * Setup an off-screen pixmap or Ximage to use as the back buffer. + * Input: b - the X/Mesa buffer + */ +void xmesa_alloc_back_buffer( XMesaBuffer b ) +{ + if (b->db_state==BACK_XIMAGE) { + /* Deallocate the old backimage, if any */ + if (b->backimage) { +#if defined(USE_XSHM) && !defined(XFree86Server) + if (b->shm) { + XShmDetach( b->xm_visual->display, &b->shminfo ); + XDestroyImage( b->backimage ); + shmdt( b->shminfo.shmaddr ); + } + else +#endif + XMesaDestroyImage( b->backimage ); + b->backimage = NULL; + } + + /* Allocate new back buffer */ +#ifdef XFree86Server + { + /* Allocate a regular XImage for the back buffer. */ + b->backimage = XMesaCreateImage(b->xm_visual->BitsPerPixel, + b->width, b->height, NULL); +#else + if (b->shm==0 + || alloc_shm_back_buffer(b)==GL_FALSE + ) { + /* Allocate a regular XImage for the back buffer. */ + b->backimage = XCreateImage( b->xm_visual->display, + b->xm_visual->visinfo->visual, + GET_VISUAL_DEPTH(b->xm_visual), + ZPixmap, 0, /* format, offset */ + NULL, b->width, b->height, + 8, 0 ); /* pad, bytes_per_line */ +#endif + if (!b->backimage) { + error("alloc_back_buffer: XCreateImage failed."); + } + b->backimage->data = (char *) MALLOC( b->backimage->height + * b->backimage->bytes_per_line ); + if (!b->backimage->data) { + error("alloc_back_buffer: MALLOC failed."); + XMesaDestroyImage( b->backimage ); + b->backimage = NULL; + } + } + b->backpixmap = None; + } + else if (b->db_state==BACK_PIXMAP) { + XMesaPixmap old_pixmap = b->backpixmap; + /* Free the old back pixmap */ + if (b->backpixmap) { + XMesaFreePixmap( b->xm_visual->display, b->backpixmap ); + } + /* Allocate new back pixmap */ + b->backpixmap = XMesaCreatePixmap( b->xm_visual->display, b->frontbuffer, + b->width, b->height, + GET_VISUAL_DEPTH(b->xm_visual) ); + b->backimage = NULL; + /* update other references to backpixmap */ + if (b->buffer==(XMesaDrawable)old_pixmap) { + b->buffer = (XMesaDrawable)b->backpixmap; + } + } +} + + + +/* + * A replacement for XAllocColor. This function should never + * fail to allocate a color. When XAllocColor fails, we return + * the nearest matching color. If we have to allocate many colors + * this function isn't too efficient; the XQueryColors() could be + * done just once. + * Written by Michael Pichler, Brian Paul, Mark Kilgard + * Input: dpy - X display + * cmap - X colormap + * cmapSize - size of colormap + * In/Out: color - the XColor struct + * Output: exact - 1=exact color match, 0=closest match + * alloced - 1=XAlloc worked, 0=XAlloc failed + */ +static void +noFaultXAllocColor( int client, + XMesaDisplay *dpy, + XMesaColormap cmap, + int cmapSize, + XMesaColor *color, + int *exact, int *alloced ) +{ +#ifdef XFree86Server + Pixel *ppixIn; + xrgb *ctable; +#else + /* we'll try to cache ctable for better remote display performance */ + static Display *prevDisplay = NULL; + static XMesaColormap prevCmap = 0; + static int prevCmapSize = 0; + static XMesaColor *ctable = NULL; +#endif + XMesaColor subColor; + int i, bestmatch; + double mindist; /* 3*2^16^2 exceeds long int precision. */ + + (void) client; + + /* First try just using XAllocColor. */ +#ifdef XFree86Server + if (AllocColor(cmap, + &color->red, &color->green, &color->blue, + &color->pixel, + client) == Success) { +#else + if (XAllocColor(dpy, cmap, color)) { +#endif + *exact = 1; + *alloced = 1; + return; + } + + /* Alloc failed, search for closest match */ + + /* Retrieve color table entries. */ + /* XXX alloca candidate. */ +#ifdef XFree86Server + ppixIn = (Pixel *) MALLOC(cmapSize * sizeof(Pixel)); + ctable = (xrgb *) MALLOC(cmapSize * sizeof(xrgb)); + for (i = 0; i < cmapSize; i++) { + ppixIn[i] = i; + } + QueryColors(cmap, cmapSize, ppixIn, ctable); +#else + if (prevDisplay != dpy || prevCmap != cmap + || prevCmapSize != cmapSize || !ctable) { + /* free previously cached color table */ + if (ctable) + FREE(ctable); + /* Get the color table from X */ + ctable = (XMesaColor *) MALLOC(cmapSize * sizeof(XMesaColor)); + assert(ctable); + for (i = 0; i < cmapSize; i++) { + ctable[i].pixel = i; + } + XQueryColors(dpy, cmap, ctable, cmapSize); + prevDisplay = dpy; + prevCmap = cmap; + prevCmapSize = cmapSize; + } +#endif + + /* Find best match. */ + bestmatch = -1; + mindist = 0.0; + for (i = 0; i < cmapSize; i++) { + double dr = 0.30 * ((double) color->red - (double) ctable[i].red); + double dg = 0.59 * ((double) color->green - (double) ctable[i].green); + double db = 0.11 * ((double) color->blue - (double) ctable[i].blue); + double dist = dr * dr + dg * dg + db * db; + if (bestmatch < 0 || dist < mindist) { + bestmatch = i; + mindist = dist; + } + } + + /* Return result. */ + subColor.red = ctable[bestmatch].red; + subColor.green = ctable[bestmatch].green; + subColor.blue = ctable[bestmatch].blue; + /* Try to allocate the closest match color. This should only + * fail if the cell is read/write. Otherwise, we're incrementing + * the cell's reference count. + */ +#ifdef XFree86Server + if (AllocColor(cmap, + &subColor.red, &subColor.green, &subColor.blue, + &subColor.pixel, + client) == Success) { +#else + if (XAllocColor(dpy, cmap, &subColor)) { +#endif + *alloced = 1; + } + else { + /* do this to work around a problem reported by Frank Ortega */ + subColor.pixel = (unsigned long) bestmatch; + subColor.red = ctable[bestmatch].red; + subColor.green = ctable[bestmatch].green; + subColor.blue = ctable[bestmatch].blue; + subColor.flags = DoRed | DoGreen | DoBlue; + *alloced = 0; + } +#ifdef XFree86Server + FREE(ppixIn); + FREE(ctable); +#else + /* don't free table, save it for next time */ +#endif + + *color = subColor; + *exact = 0; +} + + + + +/* + * Do setup for PF_GRAYSCALE pixel format. + * Note that buffer may be NULL. + */ +static GLboolean setup_grayscale( int client, XMesaVisual v, + XMesaBuffer buffer, XMesaColormap cmap ) +{ + if (GET_VISUAL_DEPTH(v)<4 || GET_VISUAL_DEPTH(v)>16) { + return GL_FALSE; + } + + if (buffer) { + XMesaBuffer prevBuffer; + + if (!cmap) { + return GL_FALSE; + } + + prevBuffer = find_xmesa_buffer(v->display, cmap, buffer); + if (prevBuffer && + (buffer->xm_visual->gl_visual->RGBAflag == + prevBuffer->xm_visual->gl_visual->RGBAflag)) { + /* Copy colormap stuff from previous XMesaBuffer which uses same + * X colormap. Do this to avoid time spent in noFaultXAllocColor. + */ + copy_colortable_info(buffer, prevBuffer); + } + else { + /* Allocate 256 shades of gray */ + int gray; + int colorsfailed = 0; + for (gray=0;gray<256;gray++) { + GLint r = gamma_adjust( v->RedGamma, gray, 255 ); + GLint g = gamma_adjust( v->GreenGamma, gray, 255 ); + GLint b = gamma_adjust( v->BlueGamma, gray, 255 ); + int exact, alloced; + XMesaColor xcol; + xcol.red = (r << 8) | r; + xcol.green = (g << 8) | g; + xcol.blue = (b << 8) | b; + noFaultXAllocColor( client, v->display, + cmap, GET_COLORMAP_SIZE(v), + &xcol, &exact, &alloced ); + if (!exact) { + colorsfailed++; + } + if (alloced) { + assert(buffer->num_alloced<256); + buffer->alloced_colors[buffer->num_alloced] = xcol.pixel; + buffer->num_alloced++; + } + + /*OLD + assert(gray < 576); + buffer->color_table[gray*3+0] = xcol.pixel; + buffer->color_table[gray*3+1] = xcol.pixel; + buffer->color_table[gray*3+2] = xcol.pixel; + assert(xcol.pixel < 65536); + buffer->pixel_to_r[xcol.pixel] = gray * 30 / 100; + buffer->pixel_to_g[xcol.pixel] = gray * 59 / 100; + buffer->pixel_to_b[xcol.pixel] = gray * 11 / 100; + */ + buffer->color_table[gray] = xcol.pixel; + assert(xcol.pixel < 65536); + buffer->pixel_to_r[xcol.pixel] = gray; + buffer->pixel_to_g[xcol.pixel] = gray; + buffer->pixel_to_b[xcol.pixel] = gray; + } + + if (colorsfailed && getenv("MESA_DEBUG")) { + fprintf( stderr, + "Note: %d out of 256 needed colors do not match exactly.\n", + colorsfailed ); + } + } + } + + v->dithered_pf = PF_GRAYSCALE; + v->undithered_pf = PF_GRAYSCALE; + return GL_TRUE; +} + + + +/* + * Setup RGB rendering for a window with a PseudoColor, StaticColor, + * or 8-bit TrueColor visual visual. We try to allocate a palette of 225 + * colors (5 red, 9 green, 5 blue) and dither to approximate a 24-bit RGB + * color. While this function was originally designed just for 8-bit + * visuals, it has also proven to work from 4-bit up to 16-bit visuals. + * Dithering code contributed by Bob Mercier. + */ +static GLboolean setup_dithered_color( int client, XMesaVisual v, + XMesaBuffer buffer, XMesaColormap cmap ) +{ + if (GET_VISUAL_DEPTH(v)<4 || GET_VISUAL_DEPTH(v)>16) { + return GL_FALSE; + } + + if (buffer) { + XMesaBuffer prevBuffer; + + if (!cmap) { + return GL_FALSE; + } + + prevBuffer = find_xmesa_buffer(v->display, cmap, buffer); + if (prevBuffer && + (buffer->xm_visual->gl_visual->RGBAflag == + prevBuffer->xm_visual->gl_visual->RGBAflag)) { + /* Copy colormap stuff from previous, matching XMesaBuffer. + * Do this to avoid time spent in noFaultXAllocColor. + */ + copy_colortable_info(buffer, prevBuffer); + } + else { + /* Allocate X colors and initialize color_table[], red_table[], etc */ + int r, g, b, i; + int colorsfailed = 0; + for (r = 0; r < _R; r++) { + for (g = 0; g < _G; g++) { + for (b = 0; b < _B; b++) { + XMesaColor xcol; + int exact, alloced; + xcol.red =gamma_adjust(v->RedGamma, r*65535/(_R-1),65535); + xcol.green=gamma_adjust(v->GreenGamma, g*65535/(_G-1),65535); + xcol.blue =gamma_adjust(v->BlueGamma, b*65535/(_B-1),65535); + noFaultXAllocColor( client, v->display, + cmap, GET_COLORMAP_SIZE(v), + &xcol, &exact, &alloced ); + if (!exact) { + colorsfailed++; + } + if (alloced) { + assert(buffer->num_alloced<256); + buffer->alloced_colors[buffer->num_alloced] = xcol.pixel; + buffer->num_alloced++; + } + i = _MIX( r, g, b ); + assert(i < 576); + buffer->color_table[i] = xcol.pixel; + assert(xcol.pixel < 65536); + buffer->pixel_to_r[xcol.pixel] = r * 255 / (_R-1); + buffer->pixel_to_g[xcol.pixel] = g * 255 / (_G-1); + buffer->pixel_to_b[xcol.pixel] = b * 255 / (_B-1); + } + } + } + + if (colorsfailed && getenv("MESA_DEBUG")) { + fprintf( stderr, + "Note: %d out of %d needed colors do not match exactly.\n", + colorsfailed, _R*_G*_B ); + } + } + } + + v->dithered_pf = PF_DITHER; + v->undithered_pf = PF_LOOKUP; + return GL_TRUE; +} + + +/* + * Setup for Hewlett Packard Color Recovery 8-bit TrueColor mode. + * HPCR simulates 24-bit color fidelity with an 8-bit frame buffer. + * Special dithering tables have to be initialized. + */ +static void setup_8bit_hpcr( XMesaVisual v ) +{ + /* HP Color Recovery contributed by: Alex De Bruyn ([email protected]) + * To work properly, the atom _HP_RGB_SMOOTH_MAP_LIST must be defined + * on the root window AND the colormap obtainable by XGetRGBColormaps + * for that atom must be set on the window. (see also tkInitWindow) + * If that colormap is not set, the output will look stripy. + */ + + /* Setup color tables with gamma correction */ + int i; + double g; + + g = 1.0 / v->RedGamma; + for (i=0; i<256; i++) { + GLint red = (GLint) (255.0 * pow( hpcr_rgbTbl[0][i]/255.0, g ) + 0.5); + v->hpcr_rgbTbl[0][i] = CLAMP( red, 16, 239 ); + } + + g = 1.0 / v->GreenGamma; + for (i=0; i<256; i++) { + GLint green = (GLint) (255.0 * pow( hpcr_rgbTbl[1][i]/255.0, g ) + 0.5); + v->hpcr_rgbTbl[1][i] = CLAMP( green, 16, 239 ); + } + + g = 1.0 / v->BlueGamma; + for (i=0; i<256; i++) { + GLint blue = (GLint) (255.0 * pow( hpcr_rgbTbl[2][i]/255.0, g ) + 0.5); + v->hpcr_rgbTbl[2][i] = CLAMP( blue, 32, 223 ); + } + v->undithered_pf = PF_HPCR; /* can't really disable dithering for now */ + v->dithered_pf = PF_HPCR; + + /* which method should I use to clear */ + /* GL_FALSE: keep the ordinary method */ + /* GL_TRUE : clear with dither pattern */ + v->hpcr_clear_flag = getenv("MESA_HPCR_CLEAR") ? GL_TRUE : GL_FALSE; + + if (v->hpcr_clear_flag) { + v->hpcr_clear_pixmap = XMesaCreatePixmap(v->display, + DefaultRootWindow(v->display), + 16, 2, 8); +#ifndef XFree86Server + v->hpcr_clear_ximage = XGetImage(v->display, v->hpcr_clear_pixmap, + 0, 0, 16, 2, AllPlanes, ZPixmap); +#endif + } +} + + +/* + * Setup RGB rendering for a window with a True/DirectColor visual. + */ +static void setup_truecolor( XMesaVisual v, XMesaBuffer buffer, + XMesaWindow window, XMesaColormap cmap ) +{ + unsigned long rmask, gmask, bmask; + (void) buffer; + (void) window; + (void) cmap; + + /* Compute red multiplier (mask) and bit shift */ + v->rshift = 0; + rmask = GET_REDMASK(v); + while ((rmask & 1)==0) { + v->rshift++; + rmask = rmask >> 1; + } + + /* Compute green multiplier (mask) and bit shift */ + v->gshift = 0; + gmask = GET_GREENMASK(v); + while ((gmask & 1)==0) { + v->gshift++; + gmask = gmask >> 1; + } + + /* Compute blue multiplier (mask) and bit shift */ + v->bshift = 0; + bmask = GET_BLUEMASK(v); + while ((bmask & 1)==0) { + v->bshift++; + bmask = bmask >> 1; + } + + /* + * Compute component-to-pixel lookup tables and dithering kernel + */ + { + static GLubyte kernel[16] = { + 0*16, 8*16, 2*16, 10*16, + 12*16, 4*16, 14*16, 6*16, + 3*16, 11*16, 1*16, 9*16, + 15*16, 7*16, 13*16, 5*16, + }; + GLint rBits = bitcount(rmask); + GLint gBits = bitcount(gmask); + GLint bBits = bitcount(bmask); + GLint minBits; + GLuint i; + + /* convert pixel components in [0,_mask] to RGB values in [0,255] */ + for (i=0; i<=rmask; i++) + v->PixelToR[i] = (unsigned char) ((i * 255) / rmask); + for (i=0; i<=gmask; i++) + v->PixelToG[i] = (unsigned char) ((i * 255) / gmask); + for (i=0; i<=bmask; i++) + v->PixelToB[i] = (unsigned char) ((i * 255) / bmask); + + /* convert RGB values from [0,255] to pixel components */ + + for (i=0;i<256;i++) { + GLint r = gamma_adjust(v->RedGamma, i, 255); + GLint g = gamma_adjust(v->GreenGamma, i, 255); + GLint b = gamma_adjust(v->BlueGamma, i, 255); + v->RtoPixel[i] = (r >> (8-rBits)) << v->rshift; + v->GtoPixel[i] = (g >> (8-gBits)) << v->gshift; + v->BtoPixel[i] = (b >> (8-bBits)) << v->bshift; + } + /* overflow protection */ + for (i=256;i<512;i++) { + v->RtoPixel[i] = v->RtoPixel[255]; + v->GtoPixel[i] = v->GtoPixel[255]; + v->BtoPixel[i] = v->BtoPixel[255]; + } + + /* setup dithering kernel */ + minBits = rBits; + if (gBits < minBits) minBits = gBits; + if (bBits < minBits) minBits = bBits; + for (i=0;i<16;i++) { + v->Kernel[i] = kernel[i] >> minBits; + } + + v->undithered_pf = PF_TRUECOLOR; + v->dithered_pf = (GET_VISUAL_DEPTH(v)<24) ? PF_TRUEDITHER : PF_TRUECOLOR; + } + + /* + * Now check for TrueColor visuals which we can optimize. + */ + if ( GET_REDMASK(v) ==0x0000ff + && GET_GREENMASK(v)==0x00ff00 + && GET_BLUEMASK(v) ==0xff0000 + && CHECK_BYTE_ORDER(v) + && v->BitsPerPixel==32 + && sizeof(GLuint)==4 + && v->RedGamma==1.0 && v->GreenGamma==1.0 && v->BlueGamma==1.0) { + /* common 32 bpp config used on SGI, Sun */ + v->undithered_pf = v->dithered_pf = PF_8A8B8G8R; + } + else if (GET_REDMASK(v) ==0xff0000 + && GET_GREENMASK(v)==0x00ff00 + && GET_BLUEMASK(v) ==0x0000ff + && CHECK_BYTE_ORDER(v) + && v->BitsPerPixel==32 + && sizeof(GLuint)==4 + && v->RedGamma==1.0 && v->GreenGamma==1.0 && v->BlueGamma==1.0) { + /* common 32 bpp config used on Linux, HP, IBM */ + v->undithered_pf = v->dithered_pf = PF_8R8G8B; + } + else if (GET_REDMASK(v) ==0xff0000 + && GET_GREENMASK(v)==0x00ff00 + && GET_BLUEMASK(v) ==0x0000ff + && CHECK_BYTE_ORDER(v) + && v->BitsPerPixel==24 + && sizeof(GLuint)==4 + && v->RedGamma==1.0 && v->GreenGamma==1.0 && v->BlueGamma==1.0) { + /* common packed 24 bpp config used on Linux */ + v->undithered_pf = v->dithered_pf = PF_8R8G8B24; + } + else if (GET_REDMASK(v) ==0xf800 + && GET_GREENMASK(v)==0x07e0 + && GET_BLUEMASK(v) ==0x001f + && CHECK_BYTE_ORDER(v) + && v->BitsPerPixel==16 + && sizeof(GLushort)==2 + && v->RedGamma==1.0 && v->GreenGamma==1.0 && v->BlueGamma==1.0) { + /* 5-6-5 color weight on common PC VGA boards */ + v->undithered_pf = PF_5R6G5B; + v->dithered_pf = PF_DITHER_5R6G5B; + } + else if (GET_REDMASK(v) ==0xe0 + && GET_GREENMASK(v)==0x1c + && GET_BLUEMASK(v) ==0x03 + && CHECK_FOR_HPCR(v)) { + setup_8bit_hpcr( v ); + } +} + + + +/* + * Setup RGB rendering for a window with a monochrome visual. + */ +static void setup_monochrome( XMesaVisual v, XMesaBuffer b ) +{ + (void) b; + v->dithered_pf = v->undithered_pf = PF_1BIT; + /* if black=1 then we must flip pixel values */ + v->bitFlip = (GET_BLACK_PIXEL(v) != 0); +} + + + +/* + * When a context is "made current" for the first time, we can finally + * finish initializing the context's visual and buffer information. + * Input: v - the XMesaVisual to initialize + * b - the XMesaBuffer to initialize (may be NULL) + * rgb_flag - TRUE = RGBA mode, FALSE = color index mode + * window - the window/pixmap we're rendering into + * cmap - the colormap associated with the window/pixmap + * Return: GL_TRUE=success, GL_FALSE=failure + */ +static GLboolean initialize_visual_and_buffer( int client, + XMesaVisual v, + XMesaBuffer b, + GLboolean rgb_flag, + XMesaDrawable window, + XMesaColormap cmap + ) +{ +#ifndef XFree86Server + XGCValues gcvalues; +#endif + + if (b) { + assert(b->xm_visual == v); + } + + /* Save true bits/pixel */ + v->BitsPerPixel = GET_BITS_PER_PIXEL(v); + assert(v->BitsPerPixel > 0); + + + if (rgb_flag==GL_FALSE) { + /* COLOR-INDEXED WINDOW: + * Even if the visual is TrueColor or DirectColor we treat it as + * being color indexed. This is weird but might be useful to someone. + */ + v->dithered_pf = v->undithered_pf = PF_INDEX; + v->index_bits = GET_VISUAL_DEPTH(v); + } + else { + /* RGB WINDOW: + * We support RGB rendering into almost any kind of visual. + */ + int xclass; + xclass = GET_VISUAL_CLASS(v); + if (xclass==TrueColor || xclass==DirectColor) { + setup_truecolor( v, b, (XMesaWindow)window, cmap ); + } + else if (xclass==StaticGray && GET_VISUAL_DEPTH(v)==1) { + setup_monochrome( v, b ); + } + else if (xclass==GrayScale || xclass==StaticGray) { + if (!setup_grayscale( client, v, b, cmap )) { + return GL_FALSE; + } + } + else if ((xclass==PseudoColor || xclass==StaticColor) + && GET_VISUAL_DEPTH(v)>=4 && GET_VISUAL_DEPTH(v)<=16) { + if (!setup_dithered_color( client, v, b, cmap )) { + return GL_FALSE; + } + } + else { + error("XMesa: RGB mode rendering not supported in given visual."); + return GL_FALSE; + } + v->index_bits = 0; + + if (getenv("MESA_NO_DITHER")) { + v->dithered_pf = v->undithered_pf; + } + } + + + /* + * If MESA_INFO env var is set print out some debugging info + * which can help Brian figure out what's going on when a user + * reports bugs. + */ + if (getenv("MESA_INFO")) { + fprintf(stderr, "X/Mesa visual = %p\n", v); + fprintf(stderr, "X/Mesa dithered pf = %u\n", v->dithered_pf); + fprintf(stderr, "X/Mesa undithered pf = %u\n", v->undithered_pf); + fprintf(stderr, "X/Mesa level = %d\n", v->level); + fprintf(stderr, "X/Mesa depth = %d\n", GET_VISUAL_DEPTH(v)); + fprintf(stderr, "X/Mesa bits per pixel = %d\n", v->BitsPerPixel); + } + + if (b && window) { + /* Do window-specific initializations */ + + /* Window dimensions */ + unsigned int w, h; + get_drawable_size( v->display, window, &w, &h ); + b->width = w; + b->height = h; + + b->frontbuffer = window; + + assert( v->gl_visual ); + + /* Setup for single/double buffering */ + if (v->gl_visual->DBflag) { + /* Double buffered */ +#ifndef XFree86Server + b->shm = check_for_xshm( v->display ); +#endif + xmesa_alloc_back_buffer( b ); + if (b->db_state==BACK_PIXMAP) { + b->buffer = (XMesaDrawable)b->backpixmap; + } + else { + b->buffer = XIMAGE; + } + } + else { + /* Single Buffered */ + b->buffer = b->frontbuffer; + } + + /* X11 graphics contexts */ +#ifdef XFree86Server + b->gc1 = CreateScratchGC(v->display, window->depth); + b->gc2 = CreateScratchGC(v->display, window->depth); +#else + b->gc1 = XCreateGC( v->display, window, 0, NULL ); + b->gc2 = XCreateGC( v->display, window, 0, NULL ); +#endif + XMesaSetFunction( v->display, b->gc1, GXcopy ); + XMesaSetFunction( v->display, b->gc2, GXcopy ); + + /* + * Don't generate Graphics Expose/NoExpose events in swapbuffers(). + * Patch contributed by Michael Pichler May 15, 1995. + */ +#ifdef XFree86Server + b->cleargc = CreateScratchGC(v->display, window->depth); + { + CARD32 v[1]; + v[0] = FALSE; + dixChangeGC(NullClient, b->cleargc, GCGraphicsExposures, v, NULL); + } +#else + gcvalues.graphics_exposures = False; + b->cleargc = XCreateGC( v->display, window, + GCGraphicsExposures, &gcvalues); +#endif + XMesaSetFunction( v->display, b->cleargc, GXcopy ); + /* + * Set fill style and tile pixmap once for all for HPCR stuff + * (instead of doing it each time in clear_color_HPCR_pixmap()) + * Initialize whole stuff + * Patch contributed by Jacques Leroy March 8, 1998. + */ + if (v->hpcr_clear_flag && b->buffer!=XIMAGE) { + int i; + for (i=0; i<16; i++) + { + XMesaPutPixel(v->hpcr_clear_ximage, i, 0, 0); + XMesaPutPixel(v->hpcr_clear_ximage, i, 1, 0); + } + XMesaPutImage(b->display, (XMesaDrawable)v->hpcr_clear_pixmap, + b->cleargc, v->hpcr_clear_ximage, 0, 0, 0, 0, 16, 2); + XMesaSetFillStyle( v->display, b->cleargc, FillTiled); + XMesaSetTile( v->display, b->cleargc, v->hpcr_clear_pixmap ); + } + + /* Initialize the row buffer XImage for use in write_color_span() */ +#ifdef XFree86Server + b->rowimage = XMesaCreateImage(GET_VISUAL_DEPTH(v), MAX_WIDTH, 1, + (char *)MALLOC(MAX_WIDTH*4)); +#else + b->rowimage = XCreateImage( v->display, + v->visinfo->visual, + v->visinfo->depth, + ZPixmap, 0, /*format, offset*/ + (char*) MALLOC(MAX_WIDTH*4), /*data*/ + MAX_WIDTH, 1, /*width, height*/ + 32, /*bitmap_pad*/ + 0 /*bytes_per_line*/ ); +#endif + } + + return GL_TRUE; +} + + + +/* + * Convert an RGBA color to a pixel value. + */ +unsigned long +xmesa_color_to_pixel( XMesaContext xmesa, GLubyte r, GLubyte g, GLubyte b, GLubyte a, + GLuint pixelFormat) +{ + switch (pixelFormat) { + case PF_INDEX: + return 0; + case PF_TRUECOLOR: + { + unsigned long p; + PACK_TRUECOLOR( p, r, g, b ); + return p; + } + case PF_8A8B8G8R: + return PACK_8A8B8G8R( r, g, b, a ); + case PF_8R8G8B: + /* fall through */ + case PF_8R8G8B24: + return PACK_8R8G8B( r, g, b ); + case PF_5R6G5B: + return PACK_5R6G5B( r, g, b ); + case PF_DITHER: + { + DITHER_SETUP; + return DITHER( 1, 0, r, g, b ); + } + case PF_1BIT: + /* 382 = (3*255)/2 */ + return ((r+g+b) > 382) ^ xmesa->xm_visual->bitFlip; + case PF_HPCR: + return DITHER_HPCR(1, 1, r, g, b); + case PF_LOOKUP: + { + LOOKUP_SETUP; + return LOOKUP( r, g, b ); + } + case PF_GRAYSCALE: + return GRAY_RGB( r, g, b ); + case PF_TRUEDITHER: + /* fall through */ + case PF_DITHER_5R6G5B: + { + unsigned long p; + PACK_TRUEDITHER(p, 1, 0, r, g, b); + return p; + } + default: + gl_problem(NULL, "Bad pixel format in xmesa_color_to_pixel"); + } + return 0; +} + + +/**********************************************************************/ +/***** Public Functions *****/ +/**********************************************************************/ + + +/* + * Create a new X/Mesa visual. + * Input: display - X11 display + * visinfo - an XVisualInfo pointer + * rgb_flag - GL_TRUE = RGB mode, + * GL_FALSE = color index mode + * alpha_flag - alpha buffer requested? + * db_flag - GL_TRUE = double-buffered, + * GL_FALSE = single buffered + * stereo_flag - stereo visual? + * ximage_flag - GL_TRUE = use an XImage for back buffer, + * GL_FALSE = use an off-screen pixmap for back buffer + * depth_size - requested bits/depth values, or zero + * stencil_size - requested bits/stencil values, or zero + * accum_red_size - requested bits/red accum values, or zero + * accum_green_size - requested bits/green accum values, or zero + * accum_blue_size - requested bits/blue accum values, or zero + * accum_alpha_size - requested bits/alpha accum values, or zero + * num_samples - number of samples/pixel if multisampling, or zero + * level - visual level, usually 0 + * visualCaveat - ala the GLX extension, usually GLX_NONE_EXT + * Return; a new XMesaVisual or 0 if error. + */ +XMesaVisual XMesaCreateVisual( XMesaDisplay *display, + XMesaVisualInfo visinfo, + GLboolean rgb_flag, + GLboolean alpha_flag, + GLboolean db_flag, + GLboolean stereo_flag, + GLboolean ximage_flag, + GLint depth_size, + GLint stencil_size, + GLint accum_red_size, + GLint accum_green_size, + GLint accum_blue_size, + GLint accum_alpha_size, + GLint num_samples, + GLint level, + GLint visualCaveat ) +{ + char *gamma; + XMesaVisual v; + GLint red_bits, green_bits, blue_bits, alpha_bits; + + /* For debugging only */ + if (getenv("MESA_XSYNC")) { + /* This makes debugging X easier. + * In your debugger, set a breakpoint on _XError to stop when an + * X protocol error is generated. + */ +#ifdef XFree86Server + /* NOT_NEEDED */ +#else + XSynchronize( display, 1 ); +#endif + } + + v = (XMesaVisual) CALLOC_STRUCT(xmesa_visual); + if (!v) { + return NULL; + } + + /* + * In the X server, NULL is passed in for the display. It will have + * to be set before using this visual. See XMesaSetVisualDisplay() + * below. + */ + v->display = display; + + /* Save a copy of the XVisualInfo struct because the user may XFREE() + * the struct but we may need some of the information contained in it + * at a later time. + */ +#ifdef XFree86Server + v->visinfo = visinfo; +#else + v->visinfo = (XVisualInfo *) MALLOC(sizeof(*visinfo)); + if(!v->visinfo) { + FREE(v); + return NULL; + } + MEMCPY(v->visinfo, visinfo, sizeof(*visinfo)); + + /* Save a copy of the pointer now so we can find this visual again + * if we need to search for it in find_glx_visual(). + */ + v->vishandle = visinfo; +#endif + +#ifdef XFree86Server + /* Initialize the depth of the screen */ + { + PixmapFormatRec *format; + + for (format = screenInfo.formats; + format->depth != display->rootDepth; + format++) + ; + v->screen_depth = format->bitsPerPixel; + } +#endif + + /* check for MESA_GAMMA environment variable */ + gamma = getenv("MESA_GAMMA"); + if (gamma) { + v->RedGamma = v->GreenGamma = v->BlueGamma = 0.0; + sscanf( gamma, "%f %f %f", &v->RedGamma, &v->GreenGamma, &v->BlueGamma ); + if (v->RedGamma<=0.0) v->RedGamma = 1.0; + if (v->GreenGamma<=0.0) v->GreenGamma = v->RedGamma; + if (v->BlueGamma<=0.0) v->BlueGamma = v->RedGamma; + } + else { + v->RedGamma = v->GreenGamma = v->BlueGamma = 1.0; + } + + v->ximage_flag = ximage_flag; + v->level = level; + v->VisualCaveat = visualCaveat; + + (void) initialize_visual_and_buffer( 0, v, NULL, rgb_flag, 0, 0 ); + + { + int xclass; + xclass = GET_VISUAL_CLASS(v); + if (xclass==TrueColor || xclass==DirectColor) { + red_bits = bitcount(GET_REDMASK(v)); + green_bits = bitcount(GET_GREENMASK(v)); + blue_bits = bitcount(GET_BLUEMASK(v)); + alpha_bits = 0; + } + else { + /* this is an approximation */ + int depth; + depth = GET_VISUAL_DEPTH(v); + red_bits = depth / 3; + depth -= red_bits; + green_bits = depth / 2; + depth -= green_bits; + blue_bits = depth; + alpha_bits = 0; + assert( red_bits + green_bits + blue_bits == GET_VISUAL_DEPTH(v) ); + } + } + + if (alpha_flag && alpha_bits == 0) + alpha_bits = 8; + + v->gl_visual = _mesa_create_visual( rgb_flag, db_flag, stereo_flag, + red_bits, green_bits, + blue_bits, alpha_bits, + v->index_bits, + depth_size, + stencil_size, + accum_red_size, accum_green_size, + accum_blue_size, accum_alpha_size, + 0 ); + if (!v->gl_visual) { +#ifndef XFree86Server + FREE(v->visinfo); +#endif + FREE(v); + return NULL; + } + + return v; +} + + +void XMesaSetVisualDisplay( XMesaDisplay *dpy, XMesaVisual v ) +{ + v->display = dpy; +} + + +void XMesaDestroyVisual( XMesaVisual v ) +{ + _mesa_destroy_visual( v->gl_visual ); +#ifndef XFree86Server + FREE(v->visinfo); +#endif + FREE(v); +} + + + +/* + * Create a new XMesaContext. + * Input: v - XMesaVisual + * share_list - another XMesaContext with which to share display + * lists or NULL if no sharing is wanted. + * Return: an XMesaContext or NULL if error. + */ +XMesaContext XMesaCreateContext( XMesaVisual v, XMesaContext share_list ) +{ + XMesaContext c; + GLboolean direct = GL_TRUE; /* XXXX */ + /* NOT_DONE: should this be GL_FALSE??? */ + static GLboolean firstTime = GL_TRUE; + + if (firstTime) { + _glthread_INIT_MUTEX(_xmesa_lock); + firstTime = GL_FALSE; + } + + c = (XMesaContext) CALLOC_STRUCT(xmesa_context); + if (!c) { + return NULL; + } + + c->gl_ctx = gl_create_context( v->gl_visual, + share_list ? share_list->gl_ctx : (GLcontext *) NULL, + (void *) c, direct ); + if (!c->gl_ctx) { + FREE(c); + return NULL; + } + + gl_extensions_enable(c->gl_ctx, "GL_HP_occlusion_test"); + gl_extensions_enable(c->gl_ctx, "GL_ARB_texture_cube_map"); + gl_extensions_enable(c->gl_ctx, "GL_EXT_texture_env_combine"); + + if (CHECK_BYTE_ORDER(v)) { + c->swapbytes = GL_FALSE; + } + else { + c->swapbytes = GL_TRUE; + } + + c->xm_visual = v; + c->xm_buffer = NULL; /* set later by XMesaMakeCurrent */ + c->display = v->display; + c->pixelformat = v->dithered_pf; /* Dithering is enabled by default */ + + c->gl_ctx->Driver.UpdateState = xmesa_update_state; + +#if defined(GLX_DIRECT_RENDERING) && !defined(XFree86Server) + c->driContextPriv = driContextPriv; +#endif + + /* Run the config file */ + gl_context_initialize( c->gl_ctx ); + + return c; +} + + + + +void XMesaDestroyContext( XMesaContext c ) +{ +#ifdef FX + if (c->xm_buffer && c->xm_buffer->FXctx) + fxMesaDestroyContext(c->xm_buffer->FXctx); +#endif + if (c->gl_ctx) + gl_destroy_context( c->gl_ctx ); + + /* Disassociate old buffer with this context */ + if (c->xm_buffer) + c->xm_buffer->xm_context = NULL; + + /* Destroy any buffers which are using this context. If we don't + * we may have dangling references. Hmm, maybe we should just + * set the buffer's context pointer to NULL instead of deleting it? + * Let's see if we get any bug reports... + * This contributed by Doug Rabson <[email protected]> + */ + { + XMesaBuffer b, next; + for (b = XMesaBufferList; b; b = next) { + next = b->Next; + if (!b->pixmap_flag) { +#ifndef XFree86Server + XSync(b->display, False); +#endif + if (b->xm_context == c) { + /* found a context created for this context */ + XMesaDestroyBuffer( b ); + } + } + } + } + + FREE( c ); +} + + + +/* + * XXX this isn't a public function! It's a hack for the 3Dfx driver. + * Create a new XMesaBuffer from an X window. + * Input: v - the XMesaVisual + * w - the window + * c - the context + * Return: new XMesaBuffer or NULL if error + */ +XMesaBuffer XMesaCreateWindowBuffer2( XMesaVisual v, XMesaWindow w, + XMesaContext c ) +{ +#ifndef XFree86Server + XWindowAttributes attr; +#endif +#ifdef FX + char *fxEnvVar; +#endif + int client = 0; + + XMesaBuffer b = alloc_xmesa_buffer(); + if (!b) { + return NULL; + } + + (void) c; + +#ifdef XFree86Server + client = CLIENT_ID(((XMesaDrawable)w)->id); +#endif + + assert(v); + +#ifdef XFree86Server + if (GET_VISUAL_DEPTH(v) != ((XMesaDrawable)w)->depth) { +#else + XGetWindowAttributes( v->display, w, &attr ); + + if (GET_VISUAL_DEPTH(v) != attr.depth) { +#endif + if (getenv("MESA_DEBUG")) { + fprintf(stderr, "XMesaCreateWindowBuffer: depth mismatch between visual and window!\n"); + } + return NULL; + } + + b->xm_context = NULL; /* Associate no context with this buffer */ + + b->xm_visual = v; + b->pixmap_flag = GL_FALSE; + b->display = v->display; +#ifdef XFree86Server + b->cmap = (ColormapPtr)LookupIDByType(wColormap(w), RT_COLORMAP); +#else + if (attr.colormap) { + b->cmap = attr.colormap; + } + else { + if (getenv("MESA_DEBUG")) { + fprintf(stderr, "Window %u has no colormap!\n", (unsigned int) w); + } + /* this is weird, a window w/out a colormap!? */ + /* OK, let's just allocate a new one and hope for the best */ + b->cmap = XCreateColormap(v->display, w, attr.visual, AllocNone); + } +#endif + + /* determine back buffer implementation */ + if (v->gl_visual->DBflag) { + if (v->ximage_flag) { + b->db_state = BACK_XIMAGE; + } + else { + b->db_state = BACK_PIXMAP; + } + } + else { + b->db_state = 0; + } + + b->gl_buffer = gl_create_framebuffer( v->gl_visual, + v->gl_visual->DepthBits > 0, + v->gl_visual->StencilBits > 0, + v->gl_visual->AccumRedBits > 0, + v->gl_visual->AlphaBits > 0 ); + if (!b->gl_buffer) { + free_xmesa_buffer(client, b); + return NULL; + } + + if (!initialize_visual_and_buffer( client, v, b, v->gl_visual->RGBAflag, + (XMesaDrawable)w, b->cmap )) { + gl_destroy_framebuffer( b->gl_buffer ); + free_xmesa_buffer(client, b); + return NULL; + } + +#ifdef FX + fxEnvVar = getenv("MESA_GLX_FX"); + if (fxEnvVar) { + if (fxEnvVar[0]!='d') { + int attribs[100]; + int numAttribs = 0; + int hw; + if (v->gl_visual->DepthBits > 0) { + attribs[numAttribs++] = FXMESA_DEPTH_SIZE; + attribs[numAttribs++] = 1; + } + if (v->gl_visual->DBflag) { + attribs[numAttribs++] = FXMESA_DOUBLEBUFFER; + } + if (v->gl_visual->AccumRedBits > 0) { + attribs[numAttribs++] = FXMESA_ACCUM_SIZE; + attribs[numAttribs++] = v->gl_visual->AccumRedBits; + } + if (v->gl_visual->StencilBits > 0) { + attribs[numAttribs++] = FXMESA_STENCIL_SIZE; + attribs[numAttribs++] = v->gl_visual->StencilBits; + } + if (v->gl_visual->AlphaBits > 0) { + attribs[numAttribs++] = FXMESA_ALPHA_SIZE; + attribs[numAttribs++] = 1; + } + if (c->gl_ctx) { +#define FXMESA_SHARE_CONTEXT 990099 /* keep in sync with fxapi.c! */ + attribs[numAttribs++] = FXMESA_SHARE_CONTEXT; + attribs[numAttribs++] = (int) c->gl_ctx; + } + attribs[numAttribs++] = FXMESA_NONE; + + if ((hw = fxQueryHardware())==GR_SSTTYPE_VOODOO) { + b->FXctx = fxMesaCreateBestContext(0, b->width, b->height, attribs); + if ((v->undithered_pf!=PF_INDEX) && (b->backimage)) { + b->FXisHackUsable = b->FXctx ? GL_TRUE : GL_FALSE; + if (fxEnvVar[0]=='w' || fxEnvVar[0]=='W') + b->FXwindowHack = b->FXctx ? GL_TRUE : GL_FALSE; + else + b->FXwindowHack = GL_FALSE; + } + } + else { + if (fxEnvVar[0]=='w' || fxEnvVar[0]=='W') + b->FXctx = fxMesaCreateContext(w, GR_RESOLUTION_NONE, + GR_REFRESH_75Hz, attribs); + else + b->FXctx = fxMesaCreateBestContext(0, b->width, b->height, attribs); + b->FXisHackUsable = GL_FALSE; + b->FXwindowHack = GL_FALSE; + } + /* + fprintf(stderr, + "voodoo %d, wid %d height %d hack: usable %d active %d\n", + hw, b->width, b->height, b->FXisHackUsable, b->FXwindowHack); + */ + } + } + else { + fprintf(stderr,"WARNING: This Mesa Library includes the Glide driver but\n"); + fprintf(stderr," you have not defined the MESA_GLX_FX env. var.\n"); + fprintf(stderr," (check the README.3DFX file for more information).\n\n"); + fprintf(stderr," you can disable this message with a 'export MESA_GLX_FX=disable'.\n"); + } +#endif + +#if defined(GLX_DIRECT_RENDERING) && !defined(XFree86Server) + b->driDrawPriv = driDrawPriv; +#endif + + return b; +} + + +XMesaBuffer XMesaCreateWindowBuffer( XMesaVisual v, XMesaWindow w ) +{ + return XMesaCreateWindowBuffer2( v, w, NULL ); +} + + +/* + * Create a new XMesaBuffer from an X pixmap. + * Input: v - the XMesaVisual + * p - the pixmap + * cmap - the colormap, may be 0 if using a TrueColor or DirectColor + * visual for the pixmap + * Return: new XMesaBuffer or NULL if error + */ +XMesaBuffer XMesaCreatePixmapBuffer( XMesaVisual v, + XMesaPixmap p, XMesaColormap cmap ) +{ + int client = 0; + XMesaBuffer b = alloc_xmesa_buffer(); + if (!b) { + return NULL; + } + + +#ifdef XFree86Server + client = CLIENT_ID(((XMesaDrawable)p)->id); +#endif + + assert(v); + + b->xm_context = NULL; /* Associate no context with this buffer */ + + b->xm_visual = v; + b->pixmap_flag = GL_TRUE; + b->display = v->display; + b->cmap = cmap; + + /* determine back buffer implementation */ + if (v->gl_visual->DBflag) { + if (v->ximage_flag) { + b->db_state = BACK_XIMAGE; + } + else { + b->db_state = BACK_PIXMAP; + } + } + else { + b->db_state = 0; + } + + b->gl_buffer = gl_create_framebuffer( v->gl_visual, + v->gl_visual->DepthBits > 0, + v->gl_visual->StencilBits > 0, + v->gl_visual->AccumRedBits + + v->gl_visual->AccumGreenBits + + v->gl_visual->AccumBlueBits > 0, + v->gl_visual->AlphaBits > 0 ); + if (!b->gl_buffer) { + free_xmesa_buffer(client, b); + return NULL; + } + + if (!initialize_visual_and_buffer(client, v, b, v->gl_visual->RGBAflag, + (XMesaDrawable)p, cmap)) { + gl_destroy_framebuffer( b->gl_buffer ); + free_xmesa_buffer(client, b); + return NULL; + } + +#if defined(GLX_DIRECT_RENDERING) && !defined(XFree86Server) + b->driDrawPriv = driDrawPriv; +#endif + + return b; +} + + + +/* + * Deallocate an XMesaBuffer structure and all related info. + */ +void XMesaDestroyBuffer( XMesaBuffer b ) +{ + int client = 0; + +#ifdef XFree86Server + if (b->frontbuffer) + client = CLIENT_ID(b->frontbuffer->id); +#endif + + if (b->gc1) XMesaFreeGC( b->xm_visual->display, b->gc1 ); + if (b->gc2) XMesaFreeGC( b->xm_visual->display, b->gc2 ); + if (b->cleargc) XMesaFreeGC( b->xm_visual->display, b->cleargc ); + + if (b->backimage) { +#if defined(USE_XSHM) && !defined(XFree86Server) + if (b->shm) { + XShmDetach( b->xm_visual->display, &b->shminfo ); + XDestroyImage( b->backimage ); + shmdt( b->shminfo.shmaddr ); + } + else +#endif + XMesaDestroyImage( b->backimage ); + } + if (b->backpixmap) { + XMesaFreePixmap( b->xm_visual->display, b->backpixmap ); + if (b->xm_visual->hpcr_clear_flag) { + XMesaFreePixmap( b->xm_visual->display, + b->xm_visual->hpcr_clear_pixmap ); + XMesaDestroyImage( b->xm_visual->hpcr_clear_ximage ); + } + } + if (b->rowimage) { + FREE( b->rowimage->data ); + b->rowimage->data = NULL; + XMesaDestroyImage( b->rowimage ); + } + + if (b->xm_context) + b->xm_context->xm_buffer = NULL; + + gl_destroy_framebuffer( b->gl_buffer ); + free_xmesa_buffer(client, b); +} + + + +/* + * Bind buffer b to context c and make c the current rendering context. + */ +GLboolean XMesaMakeCurrent( XMesaContext c, XMesaBuffer b ) +{ + return XMesaMakeCurrent2( c, b, b ); +} + + +/* + * Bind buffer b to context c and make c the current rendering context. + */ +GLboolean XMesaMakeCurrent2( XMesaContext c, XMesaBuffer drawBuffer, + XMesaBuffer readBuffer ) +{ + if (c) { + if (!drawBuffer || !readBuffer) + return GL_FALSE; /* must specify buffers! */ + +#ifdef FX + if (drawBuffer->FXctx) { + fxMesaMakeCurrent(drawBuffer->FXctx); + + /* Disassociate old buffer from this context */ + if (c->xm_buffer) + c->xm_buffer->xm_context = NULL; + + /* Associate the context with this buffer */ + drawBuffer->xm_context = c; + + c->xm_buffer = drawBuffer; + c->xm_read_buffer = readBuffer; + c->use_read_buffer = (drawBuffer != readBuffer); + + return GL_TRUE; + } +#endif + if (c->gl_ctx == gl_get_current_context() + && c->xm_buffer == drawBuffer + && c->xm_read_buffer == readBuffer + && c->xm_buffer->wasCurrent) { + /* same context and buffer, do nothing */ + return GL_TRUE; + } + + /* Disassociate old buffer with this context */ + if (c->xm_buffer) + c->xm_buffer->xm_context = NULL; + drawBuffer->xm_context = c; /* Associate the context with this buffer */ + + c->xm_buffer = drawBuffer; + c->xm_read_buffer = readBuffer; + c->use_read_buffer = (drawBuffer != readBuffer); + + gl_make_current2(c->gl_ctx, drawBuffer->gl_buffer, readBuffer->gl_buffer); + + if (c->gl_ctx->Viewport.Width == 0) { + /* initialize viewport to window size */ + _mesa_Viewport( 0, 0, drawBuffer->width, drawBuffer->height ); + c->gl_ctx->Scissor.Width = drawBuffer->width; + c->gl_ctx->Scissor.Height = drawBuffer->height; + } + + if (c->xm_visual->gl_visual->RGBAflag) { + /* + * Must recompute and set these pixel values because colormap + * can be different for different windows. + */ + c->pixel = xmesa_color_to_pixel( c, c->red, c->green, + c->blue, c->alpha, c->pixelformat ); + XMesaSetForeground( c->display, c->xm_buffer->gc1, c->pixel ); + c->clearpixel = xmesa_color_to_pixel( c, + c->clearcolor[0], + c->clearcolor[1], + c->clearcolor[2], + c->clearcolor[3], + c->xm_visual->undithered_pf); + XMesaSetForeground(c->display, c->xm_buffer->cleargc, c->clearpixel); + } + + /* Solution to Stephane Rehel's problem with glXReleaseBuffersMESA(): */ + c->xm_buffer->wasCurrent = GL_TRUE; + } + else { + /* Detach */ + gl_make_current2( NULL, NULL, NULL ); + } + return GL_TRUE; +} + + +/* + * Unbind the context c from its buffer. + */ +GLboolean XMesaUnbindContext( XMesaContext c ) +{ + /* A no-op for XFree86 integration purposes */ + return GL_TRUE; +} + + +XMesaContext XMesaGetCurrentContext( void ) +{ + GET_CURRENT_CONTEXT(ctx); + if (ctx) { + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + return xmesa; + } + else { + return 0; + } +} + + +XMesaBuffer XMesaGetCurrentBuffer( void ) +{ + GET_CURRENT_CONTEXT(ctx); + if (ctx) { + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + return xmesa->xm_buffer; + } + else { + return 0; + } +} + + +/* New in Mesa 3.1 */ +XMesaBuffer XMesaGetCurrentReadBuffer( void ) +{ + GET_CURRENT_CONTEXT(ctx); + if (ctx) { + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + return xmesa->xm_buffer; + } + else { + return 0; + } +} + + +GLboolean XMesaForceCurrent(XMesaContext c) +{ + if (c) { + if (c->gl_ctx != gl_get_current_context()) { + gl_make_current(c->gl_ctx, c->xm_buffer->gl_buffer); + } + } + else { + gl_make_current(NULL, NULL); + } + return GL_TRUE; +} + + +GLboolean XMesaLoseCurrent(XMesaContext c) +{ + (void) c; + gl_make_current(NULL, NULL); + return GL_TRUE; +} + + +/* + * Switch 3Dfx support hack between window and full-screen mode. + */ +GLboolean XMesaSetFXmode( GLint mode ) +{ +#ifdef FX + const char *fx = getenv("MESA_GLX_FX"); + if (fx && fx[0] != 'd') { + GET_CURRENT_CONTEXT(ctx); + GrHwConfiguration hw; + if (!FX_grSstQueryHardware(&hw)) { + /*fprintf(stderr, "!grSstQueryHardware\n");*/ + return GL_FALSE; + } + if (hw.num_sst < 1) { + /*fprintf(stderr, "hw.num_sst < 1\n");*/ + return GL_FALSE; + } + if (ctx) { + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + if (mode == XMESA_FX_WINDOW) { + if (xmesa->xm_buffer->FXisHackUsable) { + FX_grSstControl(GR_CONTROL_DEACTIVATE); + xmesa->xm_buffer->FXwindowHack = GL_TRUE; + return GL_TRUE; + } + } + else if (mode == XMESA_FX_FULLSCREEN) { + FX_grSstControl(GR_CONTROL_ACTIVATE); + xmesa->xm_buffer->FXwindowHack = GL_FALSE; + return GL_TRUE; + } + else { + /* Error: Bad mode value */ + } + } + } + /*fprintf(stderr, "fallthrough\n");*/ +#else + (void) mode; +#endif + return GL_FALSE; +} + + + +#ifdef FX +/* + * Read image from VooDoo frame buffer into X/Mesa's back XImage. + */ +static void FXgetImage( XMesaBuffer b ) +{ + static unsigned short pixbuf[MAX_WIDTH]; + int x, y; + XMesaWindow root; + unsigned int bw, depth, width, height; + XMesaContext xmesa = (XMesaContext) b->xm_context->gl_ctx->DriverCtx; + + assert(xmesa->xm_buffer->FXctx); + +#ifdef XFree86Server + x = b->frontbuffer->x; + y = b->frontbuffer->y; + width = b->frontbuffer->width; + height = b->frontbuffer->height; + depth = b->frontbuffer->depth; +#else + XGetGeometry( xmesa->xm_visual->display, b->frontbuffer, + &root, &x, &y, &width, &height, &bw, &depth); +#endif + if (b->width != width || b->height != height) { + b->width = MIN2((int)width, xmesa->xm_buffer->FXctx->width); + b->height = MIN2((int)height, xmesa->xm_buffer->FXctx->height); + if (b->width & 1) + b->width--; /* prevent odd width */ + xmesa_alloc_back_buffer( b ); + } + + grLfbWriteColorFormat(GR_COLORFORMAT_ARGB); + if (xmesa->xm_visual->undithered_pf==PF_5R6G5B) { + /* Special case: 16bpp RGB */ + grLfbReadRegion( GR_BUFFER_FRONTBUFFER, /* src buffer */ + 0, xmesa->xm_buffer->FXctx->height - b->height, /*pos*/ + b->width, b->height, /* size */ + b->width * sizeof(GLushort), /* stride */ + b->backimage->data); /* dest buffer */ + } + else if (xmesa->xm_visual->dithered_pf==PF_DITHER + && GET_VISUAL_DEPTH(xmesa->xm_visual)==8) { + /* Special case: 8bpp RGB */ + for (y=0;y<b->height;y++) { + GLubyte *ptr = (GLubyte*) xmesa->xm_buffer->backimage->data + + xmesa->xm_buffer->backimage->bytes_per_line * y; + XDITHER_SETUP(y); + + /* read row from 3Dfx frame buffer */ + grLfbReadRegion( GR_BUFFER_FRONTBUFFER, + 0, xmesa->xm_buffer->FXctx->height-(b->height-y), + b->width, 1, + 0, + pixbuf ); + + /* write to XImage back buffer */ + for (x=0;x<b->width;x++) { + GLubyte r = (pixbuf[x] & 0xf800) >> 8; + GLubyte g = (pixbuf[x] & 0x07e0) >> 3; + GLubyte b = (pixbuf[x] & 0x001f) << 3; + *ptr++ = XDITHER( x, r, g, b); + } + } + } + else { + /* General case: slow! */ + for (y=0;y<b->height;y++) { + /* read row from 3Dfx frame buffer */ + grLfbReadRegion( GR_BUFFER_FRONTBUFFER, + 0, xmesa->xm_buffer->FXctx->height-(b->height-y), + b->width, 1, + 0, + pixbuf ); + + /* write to XImage back buffer */ + for (x=0;x<b->width;x++) { + XMesaPutPixel(b->backimage,x,y, + xmesa_color_to_pixel(xmesa, + (pixbuf[x] & 0xf800) >> 8, + (pixbuf[x] & 0x07e0) >> 3, + (pixbuf[x] & 0x001f) << 3, + 0xff, xmesa->pixelformat)); + } + } + } + grLfbWriteColorFormat(GR_COLORFORMAT_ABGR); +} +#endif + + +/* + * Copy the back buffer to the front buffer. If there's no back buffer + * this is a no-op. + */ +void XMesaSwapBuffers( XMesaBuffer b ) +{ + GET_CURRENT_CONTEXT(ctx); + + /* If we're swapping the buffer associated with the current context + * we have to flush any pending rendering commands first. + */ + if (b->xm_context && b->xm_context->gl_ctx == ctx) + _mesa_swapbuffers(ctx); + + if (b->db_state) { +#ifdef FX + if (b->FXctx) { + fxMesaSwapBuffers(); + + if (b->FXwindowHack) + FXgetImage(b); + else + return; + } +#endif + if (b->backimage) { + /* Copy Ximage from host's memory to server's window */ +#if defined(USE_XSHM) && !defined(XFree86Server) + if (b->shm) { + /*_glthread_LOCK_MUTEX(_xmesa_lock);*/ + XShmPutImage( b->xm_visual->display, b->frontbuffer, + b->cleargc, + b->backimage, 0, 0, + 0, 0, b->width, b->height, False ); + /*_glthread_UNLOCK_MUTEX(_xmesa_lock);*/ + } + else +#endif + { +#if defined(GLX_DIRECT_RENDERING) && !defined(XFree86Server) + XMesaDriSwapBuffers( b ); +#else + /*_glthread_LOCK_MUTEX(_xmesa_lock);*/ + XMesaPutImage( b->xm_visual->display, b->frontbuffer, + b->cleargc, + b->backimage, 0, 0, + 0, 0, b->width, b->height ); + /*_glthread_UNLOCK_MUTEX(_xmesa_lock);*/ +#endif + } + } + else { + /* Copy pixmap to window on server */ + /*_glthread_LOCK_MUTEX(_xmesa_lock);*/ + XMesaCopyArea( b->xm_visual->display, + b->backpixmap, /* source drawable */ + b->frontbuffer, /* dest. drawable */ + b->cleargc, + 0, 0, b->width, b->height, /* source region */ + 0, 0 /* dest region */ + ); + /*_glthread_UNLOCK_MUTEX(_xmesa_lock);*/ + } + } +#if !defined(GLX_DIRECT_RENDERING) && !defined(XFree86Server) + XSync( b->xm_visual->display, False ); +#endif +} + + + +/* + * Copy sub-region of back buffer to front buffer + */ +void XMesaCopySubBuffer( XMesaBuffer b, int x, int y, int width, int height ) +{ + GET_CURRENT_CONTEXT(ctx); + + /* If we're swapping the buffer associated with the current context + * we have to flush any pending rendering commands first. + */ + if (b->xm_context->gl_ctx == ctx) + _mesa_swapbuffers(ctx); + + if (b->db_state) { + int yTop = b->bottom - y - height; +#ifdef FX + if (b->FXctx) { + fxMesaSwapBuffers(); + if (b->FXwindowHack) + FXgetImage(b); + else + return; + } +#endif + if (b->backimage) { + /* Copy Ximage from host's memory to server's window */ +#if defined(USE_XSHM) && !defined(XFree86Server) + if (b->shm) { + /* XXX assuming width and height aren't too large! */ + XShmPutImage( b->xm_visual->display, b->frontbuffer, + b->cleargc, + b->backimage, x, yTop, + x, yTop, width, height, False ); + /* wait for finished event??? */ + } + else +#endif + { + /* XXX assuming width and height aren't too large! */ + XMesaPutImage( b->xm_visual->display, b->frontbuffer, + b->cleargc, + b->backimage, x, yTop, + x, yTop, width, height ); + } + } + else { + /* Copy pixmap to window on server */ + XMesaCopyArea( b->xm_visual->display, + b->backpixmap, /* source drawable */ + b->frontbuffer, /* dest. drawable */ + b->cleargc, + x, yTop, width, height, /* source region */ + x, yTop /* dest region */ + ); + } + } +} + + +/* + * Return a pointer to the XMesa backbuffer Pixmap or XImage. This function + * is a way to get "under the hood" of X/Mesa so one can manipulate the + * back buffer directly. + * Output: pixmap - pointer to back buffer's Pixmap, or 0 + * ximage - pointer to back buffer's XImage, or NULL + * Return: GL_TRUE = context is double buffered + * GL_FALSE = context is single buffered + */ +GLboolean XMesaGetBackBuffer( XMesaBuffer b, + XMesaPixmap *pixmap, + XMesaImage **ximage ) +{ + if (b->db_state) { + if (pixmap) *pixmap = b->backpixmap; + if (ximage) *ximage = b->backimage; + return GL_TRUE; + } + else { + *pixmap = 0; + *ximage = NULL; + return GL_FALSE; + } +} + + +/* + * Return the depth buffer associated with an XMesaBuffer. + * Input: b - the XMesa buffer handle + * Output: width, height - size of buffer in pixels + * bytesPerValue - bytes per depth value (2 or 4) + * buffer - pointer to depth buffer values + * Return: GL_TRUE or GL_FALSE to indicate success or failure. + */ +GLboolean XMesaGetDepthBuffer( XMesaBuffer b, GLint *width, GLint *height, + GLint *bytesPerValue, void **buffer ) +{ + if ((!b->gl_buffer) || (!b->gl_buffer->DepthBuffer)) { + *width = 0; + *height = 0; + *bytesPerValue = 0; + *buffer = 0; + return GL_FALSE; + } + else { + *width = b->gl_buffer->Width; + *height = b->gl_buffer->Height; + *bytesPerValue = sizeof(GLdepth); + *buffer = b->gl_buffer->DepthBuffer; + return GL_TRUE; + } +} + + +void XMesaFlush( XMesaContext c ) +{ + if (c && c->xm_visual) { +#ifdef XFree86Server + /* NOT_NEEDED */ +#else + XSync( c->xm_visual->display, False ); +#endif + } +} + + + +const char *XMesaGetString( XMesaContext c, int name ) +{ + (void) c; + if (name==XMESA_VERSION) { + return "3.1"; + } + else if (name==XMESA_EXTENSIONS) { + return ""; + } + else { + return NULL; + } +} + + + +XMesaBuffer XMesaFindBuffer( XMesaDisplay *dpy, XMesaDrawable d ) +{ + XMesaBuffer b; + for (b=XMesaBufferList; b; b=b->Next) { + if (b->frontbuffer==d && b->display==dpy) { + return b; + } + } + return NULL; +} + + + +/* + * Look for XMesaBuffers whose X window has been destroyed. + * Deallocate any such XMesaBuffers. + */ +void XMesaGarbageCollect( void ) +{ + XMesaBuffer b, next; + for (b=XMesaBufferList; b; b=next) { + next = b->Next; + if (!b->pixmap_flag) { +#ifdef XFree86Server + /* NOT_NEEDED */ +#else + XSync(b->display, False); + if (!window_exists( b->display, b->frontbuffer )) { + /* found a dead window, free the ancillary info */ + XMesaDestroyBuffer( b ); + } +#endif + } + } +} + + +void XMesaReset( void ) +{ + while (XMesaBufferList) + XMesaDestroyBuffer(XMesaBufferList); + + XMesaBufferList = NULL; +} + + +unsigned long XMesaDitherColor( XMesaContext xmesa, GLint x, GLint y, + GLfloat red, GLfloat green, + GLfloat blue, GLfloat alpha ) +{ + GLint r = (GLint) (red * 255.0F); + GLint g = (GLint) (green * 255.0F); + GLint b = (GLint) (blue * 255.0F); + GLint a = (GLint) (alpha * 255.0F); + + switch (xmesa->pixelformat) { + case PF_INDEX: + return 0; + case PF_TRUECOLOR: + { + unsigned long p; + PACK_TRUECOLOR( p, r, g, b ); + return p; + } + case PF_8A8B8G8R: + return PACK_8A8B8G8R( r, g, b, a ); + case PF_8R8G8B: + return PACK_8R8G8B( r, g, b ); + case PF_5R6G5B: + return PACK_5R6G5B( r, g, b ); + case PF_DITHER: + { + DITHER_SETUP; + return DITHER( x, y, r, g, b ); + } + case PF_1BIT: + /* 382 = (3*255)/2 */ + return ((r+g+b) > 382) ^ xmesa->xm_visual->bitFlip; + case PF_HPCR: + return DITHER_HPCR(x, y, r, g, b); + case PF_LOOKUP: + { + LOOKUP_SETUP; + return LOOKUP( r, g, b ); + } + case PF_GRAYSCALE: + return GRAY_RGB( r, g, b ); + case PF_DITHER_5R6G5B: + /* fall through */ + case PF_TRUEDITHER: + { + unsigned long p; + PACK_TRUEDITHER(p, x, y, r, g, b); + return p; + } + default: + gl_problem(NULL, "Bad pixel format in XMesaDitherColor"); + } + return 0; +} + + diff --git a/src/mesa/drivers/x11/xm_dd.c b/src/mesa/drivers/x11/xm_dd.c new file mode 100644 index 00000000000..271cb13f083 --- /dev/null +++ b/src/mesa/drivers/x11/xm_dd.c @@ -0,0 +1,1006 @@ +/* $Id: xm_dd.c,v 1.1 2000/09/07 15:40:30 brianp Exp $ */ + +/* + * Mesa 3-D graphics library + * Version: 3.3 + * + * Copyright (C) 1999-2000 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + + +#include "glxheader.h" +#include "context.h" +#include "drawpix.h" +#include "mem.h" +#include "state.h" +#include "depth.h" +#include "macros.h" +#include "vb.h" +#include "types.h" +#include "xmesaP.h" +#include "extensions.h" + + +/* + * Return the size (width,height of the current color buffer. + * This function should be called by the glViewport function because + * glViewport is often called when the window gets resized. We need to + * update some X/Mesa stuff when that happens. + * Output: width - width of buffer in pixels. + * height - height of buffer in pixels. + */ +static void +get_buffer_size( GLcontext *ctx, GLuint *width, GLuint *height ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + unsigned int winwidth, winheight; +#ifndef XFree86Server + Window root; + int winx, winy; + unsigned int bw, d; + + _glthread_LOCK_MUTEX(_xmesa_lock); + XGetGeometry( xmesa->display, xmesa->xm_buffer->frontbuffer, &root, + &winx, &winy, &winwidth, &winheight, &bw, &d ); + _glthread_UNLOCK_MUTEX(_xmesa_lock); +#else + + winwidth = xmesa->xm_buffer->frontbuffer->width; + winheight = xmesa->xm_buffer->frontbuffer->height; +#endif + + *width = winwidth; + *height = winheight; + + if ( winwidth!=xmesa->xm_buffer->width + || winheight!=xmesa->xm_buffer->height) { + xmesa->xm_buffer->width = winwidth; + xmesa->xm_buffer->height = winheight; + xmesa_alloc_back_buffer( xmesa->xm_buffer ); + } + + /* Needed by FLIP macro */ + xmesa->xm_buffer->bottom = (int) winheight - 1; + + if (xmesa->xm_buffer->backimage) { + /* Needed by PIXELADDR1 macro */ + xmesa->xm_buffer->ximage_width1 + = xmesa->xm_buffer->backimage->bytes_per_line; + xmesa->xm_buffer->ximage_origin1 + = (GLubyte *) xmesa->xm_buffer->backimage->data + + xmesa->xm_buffer->ximage_width1 * (winheight-1); + + /* Needed by PIXELADDR2 macro */ + xmesa->xm_buffer->ximage_width2 + = xmesa->xm_buffer->backimage->bytes_per_line / 2; + xmesa->xm_buffer->ximage_origin2 + = (GLushort *) xmesa->xm_buffer->backimage->data + + xmesa->xm_buffer->ximage_width2 * (winheight-1); + + /* Needed by PIXELADDR3 macro */ + xmesa->xm_buffer->ximage_width3 + = xmesa->xm_buffer->backimage->bytes_per_line; + xmesa->xm_buffer->ximage_origin3 + = (GLubyte *) xmesa->xm_buffer->backimage->data + + xmesa->xm_buffer->ximage_width3 * (winheight-1); + + /* Needed by PIXELADDR4 macro */ + xmesa->xm_buffer->ximage_width4 = xmesa->xm_buffer->backimage->width; + xmesa->xm_buffer->ximage_origin4 + = (GLuint *) xmesa->xm_buffer->backimage->data + + xmesa->xm_buffer->ximage_width4 * (winheight-1); + } +} + + +static void +finish( GLcontext *ctx ) +{ +#ifdef XFree86Server + /* NOT_NEEDED */ +#else + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + if (xmesa) { + _glthread_LOCK_MUTEX(_xmesa_lock); + XSync( xmesa->display, False ); + _glthread_UNLOCK_MUTEX(_xmesa_lock); + } +#endif +} + + +static void +flush( GLcontext *ctx ) +{ +#ifdef XFree86Server + /* NOT_NEEDED */ +#else + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + if (xmesa) { + _glthread_LOCK_MUTEX(_xmesa_lock); + XFlush( xmesa->display ); + _glthread_UNLOCK_MUTEX(_xmesa_lock); + } +#endif +} + + +#if 0 +static GLboolean +set_buffer( GLcontext *ctx, GLenum mode ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + if (mode == GL_FRONT_LEFT) { + /* read/write front buffer */ + xmesa->xm_buffer->buffer = xmesa->xm_buffer->frontbuffer; + ctx->NewState |= NEW_RASTER_OPS; + gl_update_state(ctx); + return GL_TRUE; + } + else if (mode==GL_BACK_LEFT && xmesa->xm_buffer->db_state) { + /* read/write back buffer */ + if (xmesa->xm_buffer->backpixmap) { + xmesa->xm_buffer->buffer = + (XMesaDrawable)xmesa->xm_buffer->backpixmap; + } + else if (xmesa->xm_buffer->backimage) { + xmesa->xm_buffer->buffer = None; + } + else { + /* just in case there wasn't enough memory for back buffer */ + xmesa->xm_buffer->buffer = xmesa->xm_buffer->frontbuffer; + } + ctx->NewState |= NEW_RASTER_OPS; + gl_update_state(ctx); + return GL_TRUE; + } + else { + return GL_FALSE; + } +} +#endif + + +static GLboolean +set_draw_buffer( GLcontext *ctx, GLenum mode ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + if (mode == GL_FRONT_LEFT) { + /* write to front buffer */ + xmesa->xm_buffer->buffer = xmesa->xm_buffer->frontbuffer; + xmesa_update_span_funcs(ctx); + return GL_TRUE; + } + else if (mode==GL_BACK_LEFT && xmesa->xm_buffer->db_state) { + /* write to back buffer */ + if (xmesa->xm_buffer->backpixmap) { + xmesa->xm_buffer->buffer = + (XMesaDrawable)xmesa->xm_buffer->backpixmap; + } + else if (xmesa->xm_buffer->backimage) { + xmesa->xm_buffer->buffer = None; + } + else { + /* just in case there wasn't enough memory for back buffer */ + xmesa->xm_buffer->buffer = xmesa->xm_buffer->frontbuffer; + } + xmesa_update_span_funcs(ctx); + return GL_TRUE; + } + else { + return GL_FALSE; + } +} + + +static void +set_read_buffer( GLcontext *ctx, GLframebuffer *buffer, GLenum mode ) +{ + XMesaBuffer target; + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + + if (buffer == ctx->DrawBuffer) { + target = xmesa->xm_buffer; + xmesa->use_read_buffer = GL_FALSE; + } + else { + ASSERT(buffer == ctx->ReadBuffer); + target = xmesa->xm_read_buffer; + xmesa->use_read_buffer = GL_TRUE; + } + + if (mode == GL_FRONT_LEFT) { + target->buffer = target->frontbuffer; + xmesa_update_span_funcs(ctx); + } + else if (mode==GL_BACK_LEFT && xmesa->xm_read_buffer->db_state) { + if (target->backpixmap) { + target->buffer = (XMesaDrawable)xmesa->xm_buffer->backpixmap; + } + else if (target->backimage) { + target->buffer = None; + } + else { + /* just in case there wasn't enough memory for back buffer */ + target->buffer = target->frontbuffer; + } + xmesa_update_span_funcs(ctx); + } + else { + gl_problem(ctx, "invalid buffer in set_read_buffer() in xmesa2.c"); + } +} + + + +static void +clear_index( GLcontext *ctx, GLuint index ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + xmesa->clearpixel = (unsigned long) index; + XMesaSetForeground( xmesa->display, xmesa->xm_buffer->cleargc, + (unsigned long) index ); +} + + +static void +clear_color( GLcontext *ctx, GLubyte r, GLubyte g, GLubyte b, GLubyte a ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + xmesa->clearcolor[0] = r; + xmesa->clearcolor[1] = g; + xmesa->clearcolor[2] = b; + xmesa->clearcolor[3] = a; + xmesa->clearpixel = xmesa_color_to_pixel( xmesa, r, g, b, a, + xmesa->xm_visual->undithered_pf ); + _glthread_LOCK_MUTEX(_xmesa_lock); + XMesaSetForeground( xmesa->display, xmesa->xm_buffer->cleargc, + xmesa->clearpixel ); + _glthread_UNLOCK_MUTEX(_xmesa_lock); +} + + + +/* Set current color index */ +static void +set_index( GLcontext *ctx, GLuint index ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + unsigned long p = (unsigned long) index; + xmesa->pixel = p; + XMesaSetForeground( xmesa->display, xmesa->xm_buffer->gc1, p ); +} + + + +/* Set current drawing color */ +static void +set_color( GLcontext *ctx, GLubyte r, GLubyte g, GLubyte b, GLubyte a ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + xmesa->red = r; + xmesa->green = g; + xmesa->blue = b; + xmesa->alpha = a; + xmesa->pixel = xmesa_color_to_pixel( xmesa, r, g, b, a, xmesa->pixelformat );; + XMesaSetForeground( xmesa->display, xmesa->xm_buffer->gc1, xmesa->pixel ); +} + + + +/* Set index mask ala glIndexMask */ +static void +index_mask( GLcontext *ctx, GLuint mask ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + if (xmesa->xm_buffer->buffer != XIMAGE) { + unsigned long m; + if (mask==0xffffffff) { + m = ((unsigned long)~0L); + } + else { + m = (unsigned long) mask; + } + XMesaSetPlaneMask( xmesa->display, xmesa->xm_buffer->cleargc, m ); + } +} + + +/* Implements glColorMask() */ +static void +color_mask(GLcontext *ctx, + GLboolean rmask, GLboolean gmask, GLboolean bmask, GLboolean amask) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + int xclass = GET_VISUAL_CLASS(xmesa->xm_visual); + (void) amask; + + if (xmesa->xm_buffer->buffer != XIMAGE + && (xclass == TrueColor || xclass == DirectColor)) { + unsigned long m; + if (rmask && gmask && bmask) { + m = ((unsigned long)~0L); + } + else { + m = 0; + if (rmask) m |= GET_REDMASK(xmesa->xm_visual); + if (gmask) m |= GET_GREENMASK(xmesa->xm_visual); + if (bmask) m |= GET_BLUEMASK(xmesa->xm_visual); + } + XMesaSetPlaneMask( xmesa->display, xmesa->xm_buffer->cleargc, m ); + } +} + + +/* + * Enable/disable dithering + */ +static void +dither( GLcontext *ctx, GLboolean enable ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + if (enable) { + xmesa->pixelformat = xmesa->xm_visual->dithered_pf; + } + else { + xmesa->pixelformat = xmesa->xm_visual->undithered_pf; + } +} + + + +/**********************************************************************/ +/*** glClear implementations ***/ +/**********************************************************************/ + + +static void +clear_front_pixmap( GLcontext *ctx, GLboolean all, + GLint x, GLint y, GLint width, GLint height ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + if (all) { + XMesaFillRectangle( xmesa->display, xmesa->xm_buffer->frontbuffer, + xmesa->xm_buffer->cleargc, + 0, 0, + xmesa->xm_buffer->width+1, + xmesa->xm_buffer->height+1 ); + } + else { + XMesaFillRectangle( xmesa->display, xmesa->xm_buffer->frontbuffer, + xmesa->xm_buffer->cleargc, + x, xmesa->xm_buffer->height - y - height, + width, height ); + } +} + + +static void +clear_back_pixmap( GLcontext *ctx, GLboolean all, + GLint x, GLint y, GLint width, GLint height ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + if (all) { + XMesaFillRectangle( xmesa->display, xmesa->xm_buffer->backpixmap, + xmesa->xm_buffer->cleargc, + 0, 0, + xmesa->xm_buffer->width+1, + xmesa->xm_buffer->height+1 ); + } + else { + XMesaFillRectangle( xmesa->display, xmesa->xm_buffer->backpixmap, + xmesa->xm_buffer->cleargc, + x, xmesa->xm_buffer->height - y - height, + width, height ); + } +} + + +static void +clear_8bit_ximage( GLcontext *ctx, GLboolean all, + GLint x, GLint y, GLint width, GLint height ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + if (all) { + size_t n = xmesa->xm_buffer->backimage->bytes_per_line + * xmesa->xm_buffer->backimage->height; + MEMSET( xmesa->xm_buffer->backimage->data, xmesa->clearpixel, n ); + } + else { + GLint i; + for (i=0;i<height;i++) { + GLubyte *ptr = PIXELADDR1( xmesa->xm_buffer, x, y+i ); + MEMSET( ptr, xmesa->clearpixel, width ); + } + } +} + + +static void +clear_HPCR_ximage( GLcontext *ctx, GLboolean all, + GLint x, GLint y, GLint width, GLint height ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + if (all) { + GLint i, c16 = (xmesa->xm_buffer->backimage->bytes_per_line>>4)<<4; + GLubyte *ptr = (GLubyte *)xmesa->xm_buffer->backimage->data; + for (i=0; i<xmesa->xm_buffer->backimage->height; i++) { + GLint j; + GLubyte *sptr = xmesa->xm_visual->hpcr_clear_ximage_pattern[0]; + if (i&1) { + sptr += 16; + } + for (j=0; j<c16; j+=16) { + ptr[0] = sptr[0]; + ptr[1] = sptr[1]; + ptr[2] = sptr[2]; + ptr[3] = sptr[3]; + ptr[4] = sptr[4]; + ptr[5] = sptr[5]; + ptr[6] = sptr[6]; + ptr[7] = sptr[7]; + ptr[8] = sptr[8]; + ptr[9] = sptr[9]; + ptr[10] = sptr[10]; + ptr[11] = sptr[11]; + ptr[12] = sptr[12]; + ptr[13] = sptr[13]; + ptr[14] = sptr[14]; + ptr[15] = sptr[15]; + ptr += 16; + } + for (; j<xmesa->xm_buffer->backimage->bytes_per_line; j++) { + *ptr = sptr[j&15]; + ptr++; + } + } + } + else { + GLint i; + for (i=y; i<y+height; i++) { + GLubyte *ptr = PIXELADDR1( xmesa->xm_buffer, x, i ); + int j; + GLubyte *sptr = xmesa->xm_visual->hpcr_clear_ximage_pattern[0]; + if (i&1) { + sptr += 16; + } + for (j=x; j<x+width; j++) { + *ptr = sptr[j&15]; + ptr++; + } + } + } +} + + +static void +clear_16bit_ximage( GLcontext *ctx, GLboolean all, + GLint x, GLint y, GLint width, GLint height ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + register GLuint pixel = (GLuint) xmesa->clearpixel; + if (xmesa->swapbytes) { + pixel = ((pixel >> 8) & 0x00ff) | ((pixel << 8) & 0xff00); + } + if (all) { + register GLuint n; + register GLuint *ptr4 = (GLuint *) xmesa->xm_buffer->backimage->data; + if ((pixel & 0xff) == ((pixel >> 8) & 0xff)) { + /* low and high bytes are equal so use memset() */ + n = xmesa->xm_buffer->backimage->bytes_per_line + * xmesa->xm_buffer->height; + MEMSET( ptr4, pixel & 0xff, n ); + } + else { + pixel = pixel | (pixel<<16); + n = xmesa->xm_buffer->backimage->bytes_per_line + * xmesa->xm_buffer->height / 4; + do { + *ptr4++ = pixel; + n--; + } while (n!=0); + + if ((xmesa->xm_buffer->backimage->bytes_per_line * + xmesa->xm_buffer->height) & 0x2) + *(GLushort *)ptr4 = pixel & 0xffff; + } + } + else { + register int i, j; + for (j=0;j<height;j++) { + register GLushort *ptr2 = PIXELADDR2( xmesa->xm_buffer, x, y+j ); + for (i=0;i<width;i++) { + *ptr2++ = pixel; + } + } + } +} + + +/* Optimized code provided by Nozomi Ytow <[email protected]> */ +static void +clear_24bit_ximage( GLcontext *ctx, GLboolean all, + GLint x, GLint y, GLint width, GLint height ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + const GLubyte r = xmesa->clearcolor[0]; + const GLubyte g = xmesa->clearcolor[1]; + const GLubyte b = xmesa->clearcolor[2]; + register GLuint clearPixel; + if (xmesa->swapbytes) { + clearPixel = (b << 16) | (g << 8) | r; + } + else { + clearPixel = (r << 16) | (g << 8) | b; + } + + if (all) { + if (r==g && g==b) { + /* same value for all three components (gray) */ + const GLint w3 = xmesa->xm_buffer->width * 3; + const GLint h = xmesa->xm_buffer->height; + GLint i; + for (i = 0; i < h; i++) { + bgr_t *ptr3 = PIXELADDR3(xmesa->xm_buffer, 0, i); + MEMSET(ptr3, r, w3); + } + } + else { + /* the usual case */ + const GLint w = xmesa->xm_buffer->width; + const GLint h = xmesa->xm_buffer->height; + GLint i, j; + for (i = 0; i < h; i++) { + bgr_t *ptr3 = PIXELADDR3(xmesa->xm_buffer, 0, i); + for (j = 0; j < w; j++) { + ptr3->r = r; + ptr3->g = g; + ptr3->b = b; + ptr3++; + } + } +#if 0 /* this code doesn't work for all window widths */ + register GLuint *ptr4 = (GLuint *) ptr3; + register GLuint px; + GLuint pixel4[3]; + register GLuint *p = pixel4; + pixel4[0] = clearPixel | (clearPixel << 24); + pixel4[1] = (clearPixel << 16) | (clearPixel >> 8); + pixel4[2] = (clearPixel << 8) | (clearPixel >> 16); + switch (3 & (int)(ptr3 - (bgr_t*) ptr4)){ + case 0: + break; + case 1: + px = *ptr4 & 0x00ffffff; + px |= pixel4[0] & 0xff000000; + *ptr4++ = px; + px = *ptr4 & 0xffff0000; + px |= pixel4[2] & 0x0000ffff; + *ptr4 = px; + if (0 == --n) + break; + case 2: + px = *ptr4 & 0x0000fffff; + px |= pixel4[1] & 0xffff0000; + *ptr4++ = px; + px = *ptr4 & 0xffffff00; + px |= pixel4[2] & 0x000000ff; + *ptr4 = px; + if (0 == --n) + break; + case 3: + px = *ptr4 & 0x000000ff; + px |= pixel4[2] & 0xffffff00; + *ptr4++ = px; + --n; + break; + } + while (n > 3) { + p = pixel4; + *ptr4++ = *p++; + *ptr4++ = *p++; + *ptr4++ = *p++; + n -= 4; + } + switch (n) { + case 3: + p = pixel4; + *ptr4++ = *p++; + *ptr4++ = *p++; + px = *ptr4 & 0xffffff00; + px |= clearPixel & 0xff; + *ptr4 = px; + break; + case 2: + p = pixel4; + *ptr4++ = *p++; + px = *ptr4 & 0xffff0000; + px |= *p & 0xffff; + *ptr4 = px; + break; + case 1: + px = *ptr4 & 0xff000000; + px |= *p & 0xffffff; + *ptr4 = px; + break; + case 0: + break; + } +#endif + } + } + else { + /* only clear subrect of color buffer */ + if (r==g && g==b) { + /* same value for all three components (gray) */ + GLint j; + for (j=0;j<height;j++) { + bgr_t *ptr3 = PIXELADDR3( xmesa->xm_buffer, x, y+j ); + MEMSET(ptr3, r, 3 * width); + } + } + else { + /* non-gray clear color */ + GLint i, j; + for (j = 0; j < height; j++) { + bgr_t *ptr3 = PIXELADDR3( xmesa->xm_buffer, x, y+j ); + for (i = 0; i < width; i++) { + ptr3->r = r; + ptr3->g = g; + ptr3->b = b; + ptr3++; + } + } +#if 0 /* this code might not always (seems ptr3 always == ptr4) */ + GLint j; + GLuint pixel4[3]; + pixel4[0] = clearPixel | (clearPixel << 24); + pixel4[1] = (clearPixel << 16) | (clearPixel >> 8); + pixel4[2] = (clearPixel << 8) | (clearPixel >> 16); + for (j=0;j<height;j++) { + bgr_t *ptr3 = PIXELADDR3( xmesa->xm_buffer, x, y+j ); + register GLuint *ptr4 = (GLuint *)ptr3; + register GLuint *p, px; + GLuint w = width; + switch (3 & (int)(ptr3 - (bgr_t*) ptr4)){ + case 0: + break; + case 1: + px = *ptr4 & 0x00ffffff; + px |= pixel4[0] & 0xff000000; + *ptr4++ = px; + px = *ptr4 & 0xffff0000; + px |= pixel4[2] & 0x0000ffff; + *ptr4 = px; + if (0 == --w) + break; + case 2: + px = *ptr4 & 0x0000fffff; + px |= pixel4[1] & 0xffff0000; + *ptr4++ = px; + px = *ptr4 & 0xffffff00; + px |= pixel4[2] & 0x000000ff; + *ptr4 = px; + if (0 == --w) + break; + case 3: + px = *ptr4 & 0x000000ff; + px |= pixel4[2] & 0xffffff00; + *ptr4++ = px; + --w; + break; + } + while (w > 3){ + p = pixel4; + *ptr4++ = *p++; + *ptr4++ = *p++; + *ptr4++ = *p++; + w -= 4; + } + switch (w) { + case 3: + p = pixel4; + *ptr4++ = *p++; + *ptr4++ = *p++; + px = *ptr4 & 0xffffff00; + px |= *p & 0xff; + *ptr4 = px; + break; + case 2: + p = pixel4; + *ptr4++ = *p++; + px = *ptr4 & 0xffff0000; + px |= *p & 0xffff; + *ptr4 = px; + break; + case 1: + px = *ptr4 & 0xff000000; + px |= pixel4[0] & 0xffffff; + *ptr4 = px; + break; + case 0: + break; + } + } +#endif + } + } +} + + +static void +clear_32bit_ximage( GLcontext *ctx, GLboolean all, + GLint x, GLint y, GLint width, GLint height ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + if (all) { + register GLint n = xmesa->xm_buffer->width * xmesa->xm_buffer->height; + register GLuint *ptr4 = (GLuint *) xmesa->xm_buffer->backimage->data; + register GLuint pixel = (GLuint) xmesa->clearpixel; + if (xmesa->swapbytes) { + pixel = ((pixel >> 24) & 0x000000ff) + | ((pixel >> 8) & 0x0000ff00) + | ((pixel << 8) & 0x00ff0000) + | ((pixel << 24) & 0xff000000); + } + if (pixel==0) { + MEMSET( ptr4, pixel, 4*n ); + } + else { + do { + *ptr4++ = pixel; + n--; + } while (n!=0); + } + } + else { + register int i, j; + register GLuint pixel = (GLuint) xmesa->clearpixel; + for (j=0;j<height;j++) { + register GLuint *ptr4 = PIXELADDR4( xmesa->xm_buffer, x, y+j ); + for (i=0;i<width;i++) { + *ptr4++ = pixel; + } + } + } +} + + +static void +clear_nbit_ximage( GLcontext *ctx, GLboolean all, + GLint x, GLint y, GLint width, GLint height ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaImage *img = xmesa->xm_buffer->backimage; + if (all) { + register int i, j; + width = xmesa->xm_buffer->width; + height = xmesa->xm_buffer->height; + for (j=0;j<height;j++) { + for (i=0;i<width;i++) { + XMesaPutPixel( img, i, j, xmesa->clearpixel ); + } + } + } + else { + /* TODO: optimize this */ + register int i, j; + y = FLIP(xmesa->xm_buffer, y); + for (j=0;j<height;j++) { + for (i=0;i<width;i++) { + XMesaPutPixel( img, x+i, y-j, xmesa->clearpixel ); + } + } + } +} + + + +static GLbitfield +clear_buffers( GLcontext *ctx, GLbitfield mask, + GLboolean all, GLint x, GLint y, GLint width, GLint height ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + const GLuint *colorMask = (GLuint *) &ctx->Color.ColorMask; + + /* we can't handle color or index masking */ + if (mask & (DD_FRONT_LEFT_BIT | DD_BACK_LEFT_BIT)) { + if (*colorMask != 0xffffffff || ctx->Color.IndexMask != 0xffffffff) + return mask; + } + + if (mask & DD_FRONT_LEFT_BIT) { + ASSERT(xmesa->xm_buffer->front_clear_func); + (*xmesa->xm_buffer->front_clear_func)( ctx, all, x, y, width, height ); + } + if (mask & DD_BACK_LEFT_BIT) { + ASSERT(xmesa->xm_buffer->back_clear_func); + (*xmesa->xm_buffer->back_clear_func)( ctx, all, x, y, width, height ); + } + return mask & (~(DD_FRONT_LEFT_BIT | DD_BACK_LEFT_BIT)); +} + + + +#ifndef XFree86Server +/* + * This function implements glDrawPixels() with an XPutImage call when + * drawing to the front buffer (X Window drawable). + * The image format must be GL_BGRA to match the PF_8R8G8B pixel format. + * XXX top/bottom edge clipping is broken! + */ +static GLboolean +drawpixels_8R8G8B( GLcontext *ctx, + GLint x, GLint y, GLsizei width, GLsizei height, + GLenum format, GLenum type, + const struct gl_pixelstore_attrib *unpack, + const GLvoid *pixels ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc1; + assert(dpy); + assert(buffer); + assert(gc); + + /* XXX also check for pixel scale/bias/lookup/zooming! */ + if (format == GL_BGRA && type == GL_UNSIGNED_BYTE) { + int dstX = x; + int dstY = y; + int w = width; + int h = height; + int srcX = unpack->SkipPixels; + int srcY = unpack->SkipRows; + if (_mesa_clip_pixelrect(ctx, &dstX, &dstY, &w, &h, &srcX, &srcY)) { + XMesaImage ximage; + MEMSET(&ximage, 0, sizeof(XMesaImage)); + ximage.width = width; + ximage.height = height; + ximage.format = ZPixmap; + ximage.data = (char *) pixels + (height - 1) * width * 4; + ximage.byte_order = LSBFirst; + ximage.bitmap_unit = 32; + ximage.bitmap_bit_order = LSBFirst; + ximage.bitmap_pad = 32; + ximage.depth = 24; + ximage.bytes_per_line = -width * 4; + ximage.bits_per_pixel = 32; + ximage.red_mask = 0xff0000; + ximage.green_mask = 0x00ff00; + ximage.blue_mask = 0x0000ff; + dstY = FLIP(xmesa->xm_buffer,dstY) - height + 1; + XPutImage(dpy, buffer, gc, &ximage, srcX, srcY, dstX, dstY, w, h); + return GL_TRUE; + } + } + return GL_FALSE; +} +#endif + + + +static const GLubyte * +get_string( GLcontext *ctx, GLenum name ) +{ + (void) ctx; + switch (name) { + case GL_RENDERER: +#ifdef XFree86Server + return (const GLubyte *) "Mesa GLX Indirect"; +#else + return (const GLubyte *) "Mesa X11"; +#endif + case GL_VENDOR: +#ifdef XFree86Server + return (const GLubyte *) "VA Linux Systems, Inc."; +#else + return NULL; +#endif + default: + return NULL; + } +} + + +/* + * Initialize all the DD.* function pointers depending on the color + * buffer configuration. This is mainly called by XMesaMakeCurrent. + */ +void +xmesa_update_state( GLcontext *ctx ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + /*int depth=GET_VISUAL_DEPTH(xmesa->xm_visual);*/ + + (void) DitherValues; /* silenced unused var warning */ +#ifndef XFree86Server + (void) drawpixels_8R8G8B; +#endif + + /* + * Always the same: + */ + ctx->Driver.GetString = get_string; + ctx->Driver.UpdateState = xmesa_update_state; + ctx->Driver.GetBufferSize = get_buffer_size; + ctx->Driver.Flush = flush; + ctx->Driver.Finish = finish; + + ctx->Driver.RenderStart = 0; + ctx->Driver.RenderFinish = 0; + + ctx->Driver.SetDrawBuffer = set_draw_buffer; + ctx->Driver.SetReadBuffer = set_read_buffer; + + ctx->Driver.Index = set_index; + ctx->Driver.Color = set_color; + ctx->Driver.ClearIndex = clear_index; + ctx->Driver.ClearColor = clear_color; + ctx->Driver.Clear = clear_buffers; + ctx->Driver.IndexMask = index_mask; + ctx->Driver.ColorMask = color_mask; + ctx->Driver.Dither = dither; + + ctx->Driver.PointsFunc = xmesa_get_points_func( ctx ); + ctx->Driver.LineFunc = xmesa_get_line_func( ctx ); + ctx->Driver.TriangleFunc = xmesa_get_triangle_func( ctx ); + +/* ctx->Driver.TriangleCaps = DD_TRI_CULL; */ + + /* setup pointers to front and back buffer clear functions */ + /* XXX this bit of code could be moved to a one-time init */ + xmesa->xm_buffer->front_clear_func = clear_front_pixmap; + if (xmesa->xm_buffer->backpixmap != XIMAGE) { + /* back buffer is a pixmap */ + xmesa->xm_buffer->back_clear_func = clear_back_pixmap; + } + else if (sizeof(GLushort)!=2 || sizeof(GLuint)!=4) { + /* Do this on Crays */ + xmesa->xm_buffer->back_clear_func = clear_nbit_ximage; + } + else { + /* Do this on most machines */ + switch (xmesa->xm_visual->BitsPerPixel) { + case 8: + if (xmesa->xm_visual->hpcr_clear_flag) { + xmesa->xm_buffer->back_clear_func = clear_HPCR_ximage; + } + else { + xmesa->xm_buffer->back_clear_func = clear_8bit_ximage; + } + break; + case 16: + xmesa->xm_buffer->back_clear_func = clear_16bit_ximage; + break; + case 24: + xmesa->xm_buffer->back_clear_func = clear_24bit_ximage; + break; + case 32: + xmesa->xm_buffer->back_clear_func = clear_32bit_ximage; + break; + default: + xmesa->xm_buffer->back_clear_func = clear_nbit_ximage; + break; + } + } + + xmesa_update_span_funcs(ctx); +} diff --git a/src/mesa/drivers/x11/xm_line.c b/src/mesa/drivers/x11/xm_line.c new file mode 100644 index 00000000000..8312a2f23d0 --- /dev/null +++ b/src/mesa/drivers/x11/xm_line.c @@ -0,0 +1,748 @@ +/* $Id: xm_line.c,v 1.1 2000/09/07 15:40:30 brianp Exp $ */ + +/* + * Mesa 3-D graphics library + * Version: 3.3 + * + * Copyright (C) 1999 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + + +/* + * This file contains "accelerated" point, line, and triangle functions. + * It should be fairly easy to write new special-purpose point, line or + * triangle functions and hook them into this module. + */ + + +#include "glxheader.h" +#include "depth.h" +#include "macros.h" +#include "vb.h" +#include "types.h" +#include "xmesaP.h" + + + +/**********************************************************************/ +/*** Point rendering ***/ +/**********************************************************************/ + + +/* + * Render an array of points into a pixmap, any pixel format. + */ +static void draw_points_ANY_pixmap( GLcontext *ctx, GLuint first, GLuint last ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc2; + struct vertex_buffer *VB = ctx->VB; + register GLuint i; + + if (xmesa->xm_visual->gl_visual->RGBAflag) { + /* RGB mode */ + for (i=first;i<=last;i++) { + if (VB->ClipMask[i]==0) { + register int x, y; + const GLubyte *color = VB->ColorPtr->data[i]; + unsigned long pixel = xmesa_color_to_pixel( xmesa, + color[0], color[1], color[2], color[3], xmesa->pixelformat); + XMesaSetForeground( dpy, gc, pixel ); + x = (GLint) VB->Win.data[i][0]; + y = FLIP( xmesa->xm_buffer, (GLint) VB->Win.data[i][1] ); + XMesaDrawPoint( dpy, buffer, gc, x, y); + } + } + } + else { + /* Color index mode */ + for (i=first;i<=last;i++) { + if (VB->ClipMask[i]==0) { + register int x, y; + XMesaSetForeground( dpy, gc, VB->IndexPtr->data[i] ); + x = (GLint) VB->Win.data[i][0]; + y = FLIP( xmesa->xm_buffer, (GLint) VB->Win.data[i][1] ); + XMesaDrawPoint( dpy, buffer, gc, x, y); + } + } + } +} + + + +/* + * Analyze context state to see if we can provide a fast points drawing + * function, like those in points.c. Otherwise, return NULL. + */ +points_func xmesa_get_points_func( GLcontext *ctx ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + + if (ctx->Point.Size==1.0F && !ctx->Point.SmoothFlag && ctx->RasterMask==0 + && !ctx->Texture.Enabled) { + if (xmesa->xm_buffer->buffer==XIMAGE) { + return NULL; /*draw_points_ximage;*/ + } + else { + return draw_points_ANY_pixmap; + } + } + else { + return NULL; + } +} + + + +/**********************************************************************/ +/*** Line rendering ***/ +/**********************************************************************/ + + +#if 0 +/* + * Render a line into a pixmap, any pixel format. + */ +static void flat_pixmap_line( GLcontext *ctx, + GLuint vert0, GLuint vert1, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + struct vertex_buffer *VB = ctx->VB; + register int x0, y0, x1, y1; + XMesaGC gc; + unsigned long pixel; + if (xmesa->xm_visual->gl_visual->RGBAflag) { + const GLubyte *color = VB->ColorPtr->data[pv]; + pixel = xmesa_color_to_pixel( xmesa, color[0], color[1], color[2], color[3], + xmesa->pixelformat ); + } + else { + pixel = VB->IndexPtr->data[pv]; + } + gc = xmesa->xm_buffer->gc2; + XMesaSetForeground( xmesa->display, gc, pixel ); + + x0 = (GLint) VB->Win.data[vert0][0]; + y0 = FLIP( xmesa->xm_buffer, (GLint) VB->Win.data[vert0][1] ); + x1 = (GLint) VB->Win.data[vert1][0]; + y1 = FLIP( xmesa->xm_buffer, (GLint) VB->Win.data[vert1][1] ); + XMesaDrawLine( xmesa->display, xmesa->xm_buffer->buffer, gc, + x0, y0, x1, y1 ); +} +#endif + + +/* + * Draw a flat-shaded, PF_TRUECOLOR line into an XImage. + */ +static void flat_TRUECOLOR_line( GLcontext *ctx, + GLuint vert0, GLuint vert1, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + const GLubyte *color = ctx->VB->ColorPtr->data[pv]; + XMesaImage *img = xmesa->xm_buffer->backimage; + unsigned long pixel; + PACK_TRUECOLOR( pixel, color[0], color[1], color[2] ); + +#define INTERP_XY 1 +#define CLIP_HACK 1 +#define PLOT(X,Y) XMesaPutPixel( img, X, FLIP(xmesa->xm_buffer, Y), pixel ); + +#include "linetemp.h" +} + + + +/* + * Draw a flat-shaded, PF_8A8B8G8R line into an XImage. + */ +static void flat_8A8B8G8R_line( GLcontext *ctx, + GLuint vert0, GLuint vert1, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + const GLubyte *color = ctx->VB->ColorPtr->data[pv]; + GLuint pixel = PACK_8B8G8R( color[0], color[1], color[2] ); + +#define PIXEL_TYPE GLuint +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define PIXEL_ADDRESS(X,Y) PIXELADDR4(xmesa->xm_buffer,X,Y) +#define CLIP_HACK 1 +#define PLOT(X,Y) *pixelPtr = pixel; + +#include "linetemp.h" +} + + +/* + * Draw a flat-shaded, PF_8R8G8B line into an XImage. + */ +static void flat_8R8G8B_line( GLcontext *ctx, + GLuint vert0, GLuint vert1, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + const GLubyte *color = ctx->VB->ColorPtr->data[pv]; + GLuint pixel = PACK_8R8G8B( color[0], color[1], color[2] ); + +#define PIXEL_TYPE GLuint +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define PIXEL_ADDRESS(X,Y) PIXELADDR4(xmesa->xm_buffer,X,Y) +#define CLIP_HACK 1 +#define PLOT(X,Y) *pixelPtr = pixel; + +#include "linetemp.h" +} + + +/* + * Draw a flat-shaded, PF_8R8G8B24 line into an XImage. + */ +static void flat_8R8G8B24_line( GLcontext *ctx, + GLuint vert0, GLuint vert1, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + const GLubyte *color = ctx->VB->ColorPtr->data[pv]; + +#define PIXEL_TYPE bgr_t +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define PIXEL_ADDRESS(X,Y) PIXELADDR3(xmesa->xm_buffer,X,Y) +#define CLIP_HACK 1 +#define PLOT(X,Y) { \ + pixelPtr->r = color[RCOMP]; \ + pixelPtr->g = color[GCOMP]; \ + pixelPtr->b = color[BCOMP]; \ +} + +#include "linetemp.h" +} + + +/* + * Draw a flat-shaded, PF_5R6G5B line into an XImage. + */ +static void flat_5R6G5B_line( GLcontext *ctx, + GLuint vert0, GLuint vert1, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + const GLubyte *color = ctx->VB->ColorPtr->data[pv]; + GLushort pixel = PACK_5R6G5B( color[0], color[1], color[2] ); + +#define PIXEL_TYPE GLushort +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define PIXEL_ADDRESS(X,Y) PIXELADDR2(xmesa->xm_buffer,X,Y) +#define CLIP_HACK 1 +#define PLOT(X,Y) *pixelPtr = pixel; + +#include "linetemp.h" +} + + +/* + * Draw a flat-shaded, PF_DITHER_5R6G5B line into an XImage. + */ +static void flat_DITHER_5R6G5B_line( GLcontext *ctx, + GLuint vert0, GLuint vert1, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + const GLubyte *color = ctx->VB->ColorPtr->data[pv]; + +#define PIXEL_TYPE GLushort +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define PIXEL_ADDRESS(X,Y) PIXELADDR2(xmesa->xm_buffer,X,Y) +#define CLIP_HACK 1 +#define PLOT(X,Y) PACK_TRUEDITHER( *pixelPtr, X, Y, color[0], color[1], color[2] ); + +#include "linetemp.h" +} + + + +/* + * Draw a flat-shaded, PF_DITHER 8-bit line into an XImage. + */ +static void flat_DITHER8_line( GLcontext *ctx, + GLuint vert0, GLuint vert1, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + const GLubyte *color = ctx->VB->ColorPtr->data[pv]; + GLint r = color[0], g = color[1], b = color[2]; + DITHER_SETUP; + +#define INTERP_XY 1 +#define PIXEL_TYPE GLubyte +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define PIXEL_ADDRESS(X,Y) PIXELADDR1(xmesa->xm_buffer,X,Y) +#define CLIP_HACK 1 +#define PLOT(X,Y) *pixelPtr = DITHER(X,Y,r,g,b); + +#include "linetemp.h" +} + + +/* + * Draw a flat-shaded, PF_LOOKUP 8-bit line into an XImage. + */ +static void flat_LOOKUP8_line( GLcontext *ctx, + GLuint vert0, GLuint vert1, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + const GLubyte *color = ctx->VB->ColorPtr->data[pv]; + GLubyte pixel; + LOOKUP_SETUP; + pixel = (GLubyte) LOOKUP( color[0], color[1], color[2] ); + +#define PIXEL_TYPE GLubyte +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define PIXEL_ADDRESS(X,Y) PIXELADDR1(xmesa->xm_buffer,X,Y) +#define CLIP_HACK 1 +#define PLOT(X,Y) *pixelPtr = pixel; + +#include "linetemp.h" +} + + +/* + * Draw a flat-shaded, PF_HPCR line into an XImage. + */ +static void flat_HPCR_line( GLcontext *ctx, + GLuint vert0, GLuint vert1, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + const GLubyte *color = ctx->VB->ColorPtr->data[pv]; + GLint r = color[0], g = color[1], b = color[2]; + +#define INTERP_XY 1 +#define PIXEL_TYPE GLubyte +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define PIXEL_ADDRESS(X,Y) PIXELADDR1(xmesa->xm_buffer,X,Y) +#define CLIP_HACK 1 +#define PLOT(X,Y) *pixelPtr = (GLubyte) DITHER_HPCR(X,Y,r,g,b); + +#include "linetemp.h" +} + + + +/* + * Draw a flat-shaded, Z-less, PF_TRUECOLOR line into an XImage. + */ +static void flat_TRUECOLOR_z_line( GLcontext *ctx, + GLuint vert0, GLuint vert1, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + const GLubyte *color = ctx->VB->ColorPtr->data[pv]; + XMesaImage *img = xmesa->xm_buffer->backimage; + unsigned long pixel; + PACK_TRUECOLOR( pixel, color[0], color[1], color[2] ); + +#define INTERP_XY 1 +#define INTERP_Z 1 +#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE +#define CLIP_HACK 1 +#define PLOT(X,Y) \ + if (Z < *zPtr) { \ + *zPtr = Z; \ + XMesaPutPixel( img, X, FLIP(xmesa->xm_buffer, Y), pixel ); \ + } + +#include "linetemp.h" +} + + +/* + * Draw a flat-shaded, Z-less, PF_8A8B8G8R line into an XImage. + */ +static void flat_8A8B8G8R_z_line( GLcontext *ctx, + GLuint vert0, GLuint vert1, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + const GLubyte *color = ctx->VB->ColorPtr->data[pv]; + GLuint pixel = PACK_8B8G8R( color[0], color[1], color[2] ); + +#define INTERP_Z 1 +#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE +#define PIXEL_TYPE GLuint +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define PIXEL_ADDRESS(X,Y) PIXELADDR4(xmesa->xm_buffer,X,Y) +#define CLIP_HACK 1 +#define PLOT(X,Y) \ + if (Z < *zPtr) { \ + *zPtr = Z; \ + *pixelPtr = pixel; \ + } + +#include "linetemp.h" +} + + +/* + * Draw a flat-shaded, Z-less, PF_8R8G8B line into an XImage. + */ +static void flat_8R8G8B_z_line( GLcontext *ctx, + GLuint vert0, GLuint vert1, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + const GLubyte *color = ctx->VB->ColorPtr->data[pv]; + GLuint pixel = PACK_8R8G8B( color[0], color[1], color[2] ); + +#define INTERP_Z 1 +#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE +#define PIXEL_TYPE GLuint +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define PIXEL_ADDRESS(X,Y) PIXELADDR4(xmesa->xm_buffer,X,Y) +#define CLIP_HACK 1 +#define PLOT(X,Y) \ + if (Z < *zPtr) { \ + *zPtr = Z; \ + *pixelPtr = pixel; \ + } + +#include "linetemp.h" +} + + +/* + * Draw a flat-shaded, Z-less, PF_8R8G8B24 line into an XImage. + */ +static void flat_8R8G8B24_z_line( GLcontext *ctx, + GLuint vert0, GLuint vert1, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + const GLubyte *color = ctx->VB->ColorPtr->data[pv]; + +#define INTERP_Z 1 +#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE +#define PIXEL_TYPE bgr_t +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define PIXEL_ADDRESS(X,Y) PIXELADDR3(xmesa->xm_buffer,X,Y) +#define CLIP_HACK 1 +#define PLOT(X,Y) \ + if (Z < *zPtr) { \ + *zPtr = Z; \ + pixelPtr->r = color[RCOMP]; \ + pixelPtr->g = color[GCOMP]; \ + pixelPtr->b = color[BCOMP]; \ + } + +#include "linetemp.h" +} + + +/* + * Draw a flat-shaded, Z-less, PF_5R6G5B line into an XImage. + */ +static void flat_5R6G5B_z_line( GLcontext *ctx, + GLuint vert0, GLuint vert1, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + const GLubyte *color = ctx->VB->ColorPtr->data[pv]; + GLushort pixel = PACK_5R6G5B( color[0], color[1], color[2] ); + +#define INTERP_Z 1 +#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE +#define PIXEL_TYPE GLushort +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define PIXEL_ADDRESS(X,Y) PIXELADDR2(xmesa->xm_buffer,X,Y) +#define CLIP_HACK 1 +#define PLOT(X,Y) \ + if (Z < *zPtr) { \ + *zPtr = Z; \ + *pixelPtr = pixel; \ + } +#include "linetemp.h" +} + + +/* + * Draw a flat-shaded, Z-less, PF_DITHER_5R6G5B line into an XImage. + */ +static void flat_DITHER_5R6G5B_z_line( GLcontext *ctx, + GLuint vert0, GLuint vert1, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + const GLubyte *color = ctx->VB->ColorPtr->data[pv]; + +#define INTERP_Z 1 +#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE +#define PIXEL_TYPE GLushort +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define PIXEL_ADDRESS(X,Y) PIXELADDR2(xmesa->xm_buffer,X,Y) +#define CLIP_HACK 1 +#define PLOT(X,Y) \ + if (Z < *zPtr) { \ + *zPtr = Z; \ + PACK_TRUEDITHER(*pixelPtr, X, Y, color[0], color[1], color[2]); \ + } +#include "linetemp.h" +} + + +/* + * Draw a flat-shaded, Z-less, PF_DITHER 8-bit line into an XImage. + */ +static void flat_DITHER8_z_line( GLcontext *ctx, + GLuint vert0, GLuint vert1, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + const GLubyte *color = ctx->VB->ColorPtr->data[pv]; + GLint r = color[0], g = color[1], b = color[2]; + DITHER_SETUP; + +#define INTERP_XY 1 +#define INTERP_Z 1 +#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE +#define PIXEL_TYPE GLubyte +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define PIXEL_ADDRESS(X,Y) PIXELADDR1(xmesa->xm_buffer,X,Y) +#define CLIP_HACK 1 +#define PLOT(X,Y) \ + if (Z < *zPtr) { \ + *zPtr = Z; \ + *pixelPtr = (GLubyte) DITHER( X, Y, r, g, b); \ + } +#include "linetemp.h" +} + + +/* + * Draw a flat-shaded, Z-less, PF_LOOKUP 8-bit line into an XImage. + */ +static void flat_LOOKUP8_z_line( GLcontext *ctx, + GLuint vert0, GLuint vert1, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + const GLubyte *color = ctx->VB->ColorPtr->data[pv]; + GLubyte pixel; + LOOKUP_SETUP; + pixel = (GLubyte) LOOKUP( color[0], color[1], color[2] ); + +#define INTERP_Z 1 +#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE +#define PIXEL_TYPE GLubyte +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define PIXEL_ADDRESS(X,Y) PIXELADDR1(xmesa->xm_buffer,X,Y) +#define CLIP_HACK 1 +#define PLOT(X,Y) \ + if (Z < *zPtr) { \ + *zPtr = Z; \ + *pixelPtr = pixel; \ + } + +#include "linetemp.h" +} + + +/* + * Draw a flat-shaded, Z-less, PF_HPCR line into an XImage. + */ +static void flat_HPCR_z_line( GLcontext *ctx, + GLuint vert0, GLuint vert1, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + const GLubyte *color = ctx->VB->ColorPtr->data[pv]; + GLint r = color[0], g = color[1], b = color[2]; + +#define INTERP_XY 1 +#define INTERP_Z 1 +#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE +#define PIXEL_TYPE GLubyte +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define PIXEL_ADDRESS(X,Y) PIXELADDR1(xmesa->xm_buffer,X,Y) +#define CLIP_HACK 1 +#define PLOT(X,Y) \ + if (Z < *zPtr) { \ + *zPtr = Z; \ + *pixelPtr = (GLubyte) DITHER_HPCR( X, Y, r, g, b); \ + } + +#include "linetemp.h" +} + + +#if 0 +/* + * Examine ctx->Line attributes and set xmesa->xm_buffer->gc1 + * and xmesa->xm_buffer->gc2 appropriately. + */ +static void setup_x_line_options( GLcontext *ctx ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + int i, state, state0, new_state, len, offs; + int tbit; + char *dptr; + int n_segments = 0; + char dashes[20]; + int line_width, line_style; + + /*** Line Stipple ***/ + if (ctx->Line.StippleFlag) { + const int pattern = ctx->Line.StipplePattern; + + dptr = dashes; + state0 = state = ((pattern & 1) != 0); + + /* Decompose the pattern */ + for (i=1,tbit=2,len=1;i<16;++i,tbit=(tbit<<1)) + { + new_state = ((tbit & pattern) != 0); + if (state != new_state) + { + *dptr++ = ctx->Line.StippleFactor * len; + len = 1; + state = new_state; + } + else + ++len; + } + *dptr = ctx->Line.StippleFactor * len; + n_segments = 1 + (dptr - dashes); + + /* ensure an even no. of segments, or X may toggle on/off for consecutive patterns */ + /* if (n_segments & 1) dashes [n_segments++] = 0; value of 0 not allowed in dash list */ + + /* Handle case where line style starts OFF */ + if (state0 == 0) + offs = dashes[0]; + else + offs = 0; + +#if 0 +fprintf (stderr, "input pattern: 0x%04x, offset %d, %d segments:", pattern, offs, n_segments); +for (i = 0; i < n_segments; i++) +fprintf (stderr, " %d", dashes[i]); +fprintf (stderr, "\n"); +#endif + + XMesaSetDashes( xmesa->display, xmesa->xm_buffer->gc1, + offs, dashes, n_segments ); + XMesaSetDashes( xmesa->display, xmesa->xm_buffer->gc2, + offs, dashes, n_segments ); + + line_style = LineOnOffDash; + } + else { + line_style = LineSolid; + } + + /*** Line Width ***/ + line_width = (int) (ctx->Line.Width+0.5F); + if (line_width < 2) { + /* Use fast lines when possible */ + line_width = 0; + } + + /*** Set GC attributes ***/ + XMesaSetLineAttributes( xmesa->display, xmesa->xm_buffer->gc1, + line_width, line_style, CapButt, JoinBevel); + XMesaSetLineAttributes( xmesa->display, xmesa->xm_buffer->gc2, + line_width, line_style, CapButt, JoinBevel); + XMesaSetFillStyle( xmesa->display, xmesa->xm_buffer->gc1, FillSolid ); + XMesaSetFillStyle( xmesa->display, xmesa->xm_buffer->gc2, FillSolid ); +} +#endif + + + +/* + * Analyze context state to see if we can provide a fast line drawing + * function, like those in lines.c. Otherwise, return NULL. + */ +line_func xmesa_get_line_func( GLcontext *ctx ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + int depth = GET_VISUAL_DEPTH(xmesa->xm_visual); + + (void) DitherValues; /* silence unused var warning */ + (void) kernel1; /* silence unused var warning */ + + if (ctx->Line.SmoothFlag) return NULL; + if (ctx->Texture.Enabled) return NULL; + if (ctx->Light.ShadeModel!=GL_FLAT) return NULL; + /* X line stippling doesn't match OpenGL stippling */ + if (ctx->Line.StippleFlag==GL_TRUE) return NULL; + + if (xmesa->xm_buffer->buffer==XIMAGE + && ctx->RasterMask==DEPTH_BIT + && ctx->Depth.Func==GL_LESS + && ctx->Depth.Mask==GL_TRUE + && ctx->Visual->DepthBits == DEFAULT_SOFTWARE_DEPTH_BITS + && ctx->Line.Width==1.0F) { + switch (xmesa->pixelformat) { + case PF_TRUECOLOR: + return flat_TRUECOLOR_z_line; + case PF_8A8B8G8R: + return flat_8A8B8G8R_z_line; + case PF_8R8G8B: + return flat_8R8G8B_z_line; + case PF_8R8G8B24: + return flat_8R8G8B24_z_line; + case PF_5R6G5B: + return flat_5R6G5B_z_line; + case PF_DITHER_5R6G5B: + return flat_DITHER_5R6G5B_z_line; + case PF_DITHER: + return (depth==8) ? flat_DITHER8_z_line : NULL; + case PF_LOOKUP: + return (depth==8) ? flat_LOOKUP8_z_line : NULL; + case PF_HPCR: + return flat_HPCR_z_line; + default: + return NULL; + } + } + if (xmesa->xm_buffer->buffer==XIMAGE + && ctx->RasterMask==0 + && ctx->Line.Width==1.0F) { + switch (xmesa->pixelformat) { + case PF_TRUECOLOR: + return flat_TRUECOLOR_line; + case PF_8A8B8G8R: + return flat_8A8B8G8R_line; + case PF_8R8G8B: + return flat_8R8G8B_line; + case PF_8R8G8B24: + return flat_8R8G8B24_line; + case PF_5R6G5B: + return flat_5R6G5B_line; + case PF_DITHER_5R6G5B: + return flat_DITHER_5R6G5B_line; + case PF_DITHER: + return (depth==8) ? flat_DITHER8_line : NULL; + case PF_LOOKUP: + return (depth==8) ? flat_LOOKUP8_line : NULL; + case PF_HPCR: + return flat_HPCR_line; + default: + return NULL; + } + } +#if 0 + /* XXX have to disable this because X's rasterization rules don't match + * software Mesa's. This causes the linehv.c conformance test to fail. + * In the future, we might provide a config option to enable this. + */ + if (xmesa->xm_buffer->buffer!=XIMAGE && ctx->RasterMask==0) { + setup_x_line_options( ctx ); + return flat_pixmap_line; + } +#endif + return NULL; +} diff --git a/src/mesa/drivers/x11/xm_span.c b/src/mesa/drivers/x11/xm_span.c new file mode 100644 index 00000000000..3542f9275a4 --- /dev/null +++ b/src/mesa/drivers/x11/xm_span.c @@ -0,0 +1,4447 @@ +/* $Id: xm_span.c,v 1.1 2000/09/07 15:40:30 brianp Exp $ */ + +/* + * Mesa 3-D graphics library + * Version: 3.3 + * + * Copyright (C) 1999-2000 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + + +#include "glxheader.h" +#include "context.h" +#include "drawpix.h" +#include "mem.h" +#include "state.h" +#include "depth.h" +#include "macros.h" +#include "vb.h" +#include "types.h" +#include "xmesaP.h" +#include "extensions.h" + + + + +/* + * The following functions are used to trap XGetImage() calls which + * generate BadMatch errors if the drawable isn't mapped. + */ + +#ifndef XFree86Server +static int caught_xgetimage_error = 0; +static int (*old_xerror_handler)( XMesaDisplay *dpy, XErrorEvent *ev ); +static unsigned long xgetimage_serial; + +/* + * This is the error handler which will be called if XGetImage fails. + */ +static int xgetimage_error_handler( XMesaDisplay *dpy, XErrorEvent *ev ) +{ + if (ev->serial==xgetimage_serial && ev->error_code==BadMatch) { + /* caught the expected error */ + caught_xgetimage_error = 0; + } + else { + /* call the original X error handler, if any. otherwise ignore */ + if (old_xerror_handler) { + (*old_xerror_handler)( dpy, ev ); + } + } + return 0; +} + + +/* + * Call this right before XGetImage to setup error trap. + */ +static void catch_xgetimage_errors( XMesaDisplay *dpy ) +{ + xgetimage_serial = NextRequest( dpy ); + old_xerror_handler = XSetErrorHandler( xgetimage_error_handler ); + caught_xgetimage_error = 0; +} + + +/* + * Call this right after XGetImage to check if an error occured. + */ +static int check_xgetimage_errors( void ) +{ + /* restore old handler */ + (void) XSetErrorHandler( old_xerror_handler ); + /* return 0=no error, 1=error caught */ + return caught_xgetimage_error; +} +#endif + + +/* + * Read a pixel from an X drawable. + */ +static unsigned long read_pixel( XMesaDisplay *dpy, + XMesaDrawable d, int x, int y ) +{ + unsigned long p; +#ifndef XFree86Server + XMesaImage *pixel = NULL; + int error; + + catch_xgetimage_errors( dpy ); + pixel = XGetImage( dpy, d, x, y, 1, 1, AllPlanes, ZPixmap ); + error = check_xgetimage_errors(); + if (pixel && !error) { + p = XMesaGetPixel( pixel, 0, 0 ); + } + else { + p = 0; + } + if (pixel) { + XMesaDestroyImage( pixel ); + } +#else + (*dpy->GetImage)(d, x, y, 1, 1, ZPixmap, ~0L, (pointer)&p); +#endif + return p; +} + + + +/* + * The Mesa library needs to be able to draw pixels in a number of ways: + * 1. RGB vs Color Index + * 2. as horizontal spans (polygons, images) vs random locations (points, + * lines) + * 3. different color per-pixel or same color for all pixels + * + * Furthermore, the X driver needs to support rendering to 3 possible + * "buffers", usually one, but sometimes two at a time: + * 1. The front buffer as an X window + * 2. The back buffer as a Pixmap + * 3. The back buffer as an XImage + * + * Finally, if the back buffer is an XImage, we can avoid using XPutPixel and + * optimize common cases such as 24-bit and 8-bit modes. + * + * By multiplication, there's at least 48 possible combinations of the above. + * + * Below are implementations of the most commonly used combinations. They are + * accessed through function pointers which get initialized here and are used + * directly from the Mesa library. The 8 function pointers directly correspond + * to the first 3 cases listed above. + * + * + * The function naming convention is: + * + * write_[span|pixels]_[mono]_[format]_[pixmap|ximage] + * + * New functions optimized for specific cases can be added without too much + * trouble. An example might be the 24-bit TrueColor mode 8A8R8G8B which is + * found on IBM RS/6000 X servers. + */ + + + + +/**********************************************************************/ +/*** Write COLOR SPAN functions ***/ +/**********************************************************************/ + + +#define RGBA_SPAN_ARGS const GLcontext *ctx, \ + GLuint n, GLint x, GLint y, \ + CONST GLubyte rgba[][4], const GLubyte mask[] + +#define RGB_SPAN_ARGS const GLcontext *ctx, \ + GLuint n, GLint x, GLint y, \ + CONST GLubyte rgb[][3], const GLubyte mask[] + + +/* NOTE: if mask==NULL, draw all pixels */ + + +/* + * Write a span of PF_TRUECOLOR pixels to a pixmap. + */ +static void write_span_TRUECOLOR_pixmap( RGBA_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc2; + register GLuint i; + y = FLIP(xmesa->xm_buffer, y); + if (mask) { + for (i=0;i<n;i++,x++) { + if (mask[i]) { + unsigned long p; + PACK_TRUECOLOR( p, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ); + XMesaSetForeground( dpy, gc, p ); + XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y ); + } + } + } + else { + /* draw all pixels */ + XMesaImage *rowimg = xmesa->xm_buffer->rowimage; + for (i=0;i<n;i++) { + unsigned long p; + PACK_TRUECOLOR( p, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ); + XMesaPutPixel( rowimg, i, 0, p ); + } + XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 ); + } +} + + +/* + * Write a span of PF_TRUECOLOR pixels to a pixmap. + */ +static void write_span_rgb_TRUECOLOR_pixmap( RGB_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc2; + register GLuint i; + y = FLIP(xmesa->xm_buffer, y); + if (mask) { + for (i=0;i<n;i++,x++) { + if (mask[i]) { + unsigned long p; + PACK_TRUECOLOR( p, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] ); + XMesaSetForeground( dpy, gc, p ); + XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y ); + } + } + } + else { + /* draw all pixels */ + XMesaImage *rowimg = xmesa->xm_buffer->rowimage; + for (i=0;i<n;i++) { + unsigned long p; + PACK_TRUECOLOR( p, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] ); + XMesaPutPixel( rowimg, i, 0, p ); + } + XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 ); + } +} + + +/* + * Write a span of PF_TRUEDITHER pixels to a pixmap. + */ +static void write_span_TRUEDITHER_pixmap( RGBA_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc2; + register GLuint i; + y = FLIP(xmesa->xm_buffer, y); + if (mask) { + for (i=0;i<n;i++,x++) { + if (mask[i]) { + unsigned long p; + PACK_TRUEDITHER(p, x, y, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]); + XMesaSetForeground( dpy, gc, p ); + XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y ); + } + } + } + else { + XMesaImage *rowimg = xmesa->xm_buffer->rowimage; + for (i=0;i<n;i++) { + unsigned long p; + PACK_TRUEDITHER(p, x+i, y, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]); + XMesaPutPixel( rowimg, i, 0, p ); + } + XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 ); + } +} + + +/* + * Write a span of PF_TRUEDITHER pixels to a pixmap (no alpha). + */ +static void write_span_rgb_TRUEDITHER_pixmap( RGB_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc2; + register GLuint i; + y = FLIP(xmesa->xm_buffer, y); + if (mask) { + for (i=0;i<n;i++,x++) { + if (mask[i]) { + unsigned long p; + PACK_TRUEDITHER(p, x, y, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP]); + XMesaSetForeground( dpy, gc, p ); + XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y ); + } + } + } + else { + XMesaImage *rowimg = xmesa->xm_buffer->rowimage; + for (i=0;i<n;i++) { + unsigned long p; + PACK_TRUEDITHER(p, x+i, y, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP]); + XMesaPutPixel( rowimg, i, 0, p ); + } + XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 ); + } +} + + + +/* + * Write a span of PF_8A8B8G8R pixels to a pixmap. + */ +static void write_span_8A8B8G8R_pixmap( RGBA_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc2; + register GLuint i; + y = FLIP(xmesa->xm_buffer, y); + if (mask) { + for (i=0;i<n;i++,x++) { + if (mask[i]) { + XMesaSetForeground( dpy, gc, + PACK_8A8B8G8R(rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP], rgba[i][ACOMP]) ); + XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y ); + } + } + } + else { + /* draw all pixels */ + XMesaImage *rowimg = xmesa->xm_buffer->rowimage; + register GLuint *ptr4 = (GLuint *) rowimg->data; + for (i=0;i<n;i++) { + *ptr4++ = PACK_8A8B8G8R( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP], rgba[i][ACOMP] ); + } + XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 ); + } +} + + +/* + * Write a span of PF_8A8B8G8R pixels to a pixmap (no alpha). + */ +static void write_span_rgb_8A8B8G8R_pixmap( RGB_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc2; + register GLuint i; + y = FLIP(xmesa->xm_buffer, y); + if (mask) { + for (i=0;i<n;i++,x++) { + if (mask[i]) { + XMesaSetForeground( dpy, gc, + PACK_8B8G8R(rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP]) ); + XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y ); + } + } + } + else { + /* draw all pixels */ + XMesaImage *rowimg = xmesa->xm_buffer->rowimage; + register GLuint *ptr4 = (GLuint *) rowimg->data; + for (i=0;i<n;i++) { + *ptr4++ = PACK_8B8G8R(rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP]); + } + XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 ); + } +} + + +/* + * Write a span of PF_8R8G8B pixels to a pixmap. + */ +static void write_span_8R8G8B_pixmap( RGBA_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc2; + register GLuint i; + y = FLIP(xmesa->xm_buffer, y); + if (mask) { + for (i=0;i<n;i++,x++) { + if (mask[i]) { + XMesaSetForeground( dpy, gc, PACK_8R8G8B( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] )); + XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y ); + } + } + } + else { + /* draw all pixels */ + XMesaImage *rowimg = xmesa->xm_buffer->rowimage; + register GLuint *ptr4 = (GLuint *) rowimg->data; + for (i=0;i<n;i++) { + *ptr4++ = PACK_8R8G8B( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ); + } + XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 ); + } +} + + +/* + * Write a span of PF_8R8G8B24 pixels to a pixmap. + */ +static void write_span_8R8G8B24_pixmap( RGBA_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc2; + y = FLIP(xmesa->xm_buffer, y); + if (mask) { + register GLuint i; + for (i=0;i<n;i++,x++) { + if (mask[i]) { + XMesaSetForeground( dpy, gc, + PACK_8R8G8B( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] )); + XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y ); + } + } + } + else { + /* draw all pixels */ + XMesaImage *rowimg = xmesa->xm_buffer->rowimage; + register GLuint *ptr4 = (GLuint *) rowimg->data; + register GLuint pixel; + static const GLuint shift[4] = {0, 8, 16, 24}; + register GLuint i = 0; + int w = n; + while (w > 3) { + pixel = rgba[i][BCOMP] /* << shift[0]*/; + pixel |= rgba[i][GCOMP] << shift[1]; + pixel |= rgba[i++][RCOMP] << shift[2]; + pixel |= rgba[i][BCOMP] << shift[3]; + *ptr4++ = pixel; + + pixel = rgba[i][GCOMP] /* << shift[0]*/; + pixel |= rgba[i++][RCOMP] << shift[1]; + pixel |= rgba[i][BCOMP] << shift[2]; + pixel |= rgba[i][GCOMP] << shift[3]; + *ptr4++ = pixel; + + pixel = rgba[i++][RCOMP]/* << shift[0]*/; + pixel |= rgba[i][BCOMP] << shift[1]; + pixel |= rgba[i][GCOMP] << shift[2]; + pixel |= rgba[i++][RCOMP] << shift[3]; + *ptr4++ = pixel; + + w -= 4; + } + switch (w) { + case 3: + pixel = 0; + pixel |= rgba[i][BCOMP] /*<< shift[0]*/; + pixel |= rgba[i][GCOMP] << shift[1]; + pixel |= rgba[i++][RCOMP] << shift[2]; + pixel |= rgba[i][BCOMP] << shift[3]; + *ptr4++ = pixel; + pixel = 0; + pixel |= rgba[i][GCOMP] /*<< shift[0]*/; + pixel |= rgba[i++][RCOMP] << shift[1]; + pixel |= rgba[i][BCOMP] << shift[2]; + pixel |= rgba[i][GCOMP] << shift[3]; + *ptr4++ = pixel; + pixel = 0xffffff00 & *ptr4; + pixel |= rgba[i][RCOMP] /*<< shift[0]*/; + *ptr4 = pixel; + break; + case 2: + pixel = 0; + pixel |= rgba[i][BCOMP] /*<< shift[0]*/; + pixel |= rgba[i][GCOMP] << shift[1]; + pixel |= rgba[i++][RCOMP] << shift[2]; + pixel |= rgba[i][BCOMP] << shift[3]; + *ptr4++ = pixel; + pixel = 0xffff0000 & *ptr4; + pixel |= rgba[i][GCOMP] /*<< shift[0]*/; + pixel |= rgba[i][RCOMP] << shift[1]; + *ptr4 = pixel; + break; + case 1: + pixel = 0xff000000 & *ptr4; + pixel |= rgba[i][BCOMP] /*<< shift[0]*/; + pixel |= rgba[i][GCOMP] << shift[1]; + pixel |= rgba[i][RCOMP] << shift[2]; + *ptr4 = pixel; + break; + case 0: + break; + } + XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 ); + } +} + + +/* + * Write a span of PF_8R8G8B pixels to a pixmap (no alpha). + */ +static void write_span_rgb_8R8G8B_pixmap( RGB_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc2; + register GLuint i; + y = FLIP(xmesa->xm_buffer, y); + if (mask) { + for (i=0;i<n;i++,x++) { + if (mask[i]) { + XMesaSetForeground( dpy, gc, PACK_8R8G8B( rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] )); + XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y ); + } + } + } + else { + /* draw all pixels */ + XMesaImage *rowimg = xmesa->xm_buffer->rowimage; + register GLuint *ptr4 = (GLuint *) rowimg->data; + for (i=0;i<n;i++) { + *ptr4++ = PACK_8R8G8B( rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] ); + } + XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 ); + } +} + + +/* + * Write a span of PF_8R8G8B24 pixels to a pixmap (no alpha). + */ +static void write_span_rgb_8R8G8B24_pixmap( RGB_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc2; + y = FLIP(xmesa->xm_buffer, y); + if (mask) { + register GLuint i; + for (i=0;i<n;i++,x++) { + if (mask[i]) { + XMesaSetForeground( dpy, gc, + PACK_8R8G8B( rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] )); + XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y ); + } + } + } + else { + /* draw all pixels */ + XMesaImage *rowimg = xmesa->xm_buffer->rowimage; + register GLuint *ptr4 = (GLuint *) rowimg->data; + register GLuint pixel; + static const GLuint shift[4] = {0, 8, 16, 24}; + unsigned w = n; + register GLuint i = 0; + while (w > 3) { + pixel = 0; + pixel |= rgb[i][BCOMP]/* << shift[0]*/; + pixel |= rgb[i][GCOMP] << shift[1]; + pixel |= rgb[i++][RCOMP] << shift[2]; + pixel |= rgb[i][BCOMP] <<shift[3]; + *ptr4++ = pixel; + + pixel = 0; + pixel |= rgb[i][GCOMP]/* << shift[0]*/; + pixel |= rgb[i++][RCOMP] << shift[1]; + pixel |= rgb[i][BCOMP] << shift[2]; + pixel |= rgb[i][GCOMP] << shift[3]; + *ptr4++ = pixel; + + pixel = 0; + pixel |= rgb[i++][RCOMP]/* << shift[0]*/; + pixel |= rgb[i][BCOMP] << shift[1]; + pixel |= rgb[i][GCOMP] << shift[2]; + pixel |= rgb[i++][RCOMP] << shift[3]; + *ptr4++ = pixel; + w -= 4; + } + switch (w) { + case 3: + pixel = 0; + pixel |= rgb[i][BCOMP]/* << shift[0]*/; + pixel |= rgb[i][GCOMP] << shift[1]; + pixel |= rgb[i++][RCOMP] << shift[2]; + pixel |= rgb[i][BCOMP] << shift[3]; + *ptr4++ = pixel; + pixel = 0; + pixel |= rgb[i][GCOMP]/* << shift[0]*/; + pixel |= rgb[i++][RCOMP] << shift[1]; + pixel |= rgb[i][BCOMP] << shift[2]; + pixel |= rgb[i][GCOMP] << shift[3]; + *ptr4++ = pixel; + pixel = *ptr4; + pixel &= 0xffffff00; + pixel |= rgb[i++][RCOMP]/* << shift[0]*/; + *ptr4++ = pixel; + break; + case 2: + pixel = 0; + pixel |= rgb[i][BCOMP]/* << shift[0]*/; + pixel |= rgb[i][GCOMP] << shift[1]; + pixel |= rgb[i++][RCOMP] << shift[2]; + pixel |= rgb[i][BCOMP] << shift[3]; + *ptr4++ = pixel; + pixel = *ptr4; + pixel &= 0xffff0000; + pixel |= rgb[i][GCOMP]/* << shift[0]*/; + pixel |= rgb[i++][RCOMP] << shift[1]; + *ptr4++ = pixel; + break; + case 1: + pixel = *ptr4; + pixel &= 0xff000000; + pixel |= rgb[i][BCOMP]/* << shift[0]*/; + pixel |= rgb[i][GCOMP] << shift[1]; + pixel |= rgb[i++][RCOMP] << shift[2]; + *ptr4++ = pixel; + break; + case 0: + break; + } + XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 ); + } +} + + +/* + * Write a span of PF_5R6G5B pixels to a pixmap. + */ +static void write_span_5R6G5B_pixmap( RGBA_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc2; + register GLuint i; + y = FLIP(xmesa->xm_buffer, y); + if (mask) { + for (i=0;i<n;i++,x++) { + if (mask[i]) { + XMesaSetForeground( dpy, gc, PACK_5R6G5B( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] )); + XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y ); + } + } + } + else { + /* draw all pixels */ + XMesaImage *rowimg = xmesa->xm_buffer->rowimage; + register GLushort *ptr2 = (GLushort *) rowimg->data; + for (i=0;i<n;i++) { + ptr2[i] = PACK_5R6G5B( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ); + } + XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 ); + } +} + + +/* + * Write a span of PF_DITHER_5R6G5B pixels to a pixmap. + */ +static void write_span_DITHER_5R6G5B_pixmap( RGBA_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc2; + register GLuint i; + y = FLIP(xmesa->xm_buffer, y); + if (mask) { + for (i=0;i<n;i++,x++) { + if (mask[i]) { + unsigned long p; + PACK_TRUEDITHER(p, x, y, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]); + XMesaSetForeground( dpy, gc, p ); + XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y ); + } + } + } + else { + /* draw all pixels */ + XMesaImage *rowimg = xmesa->xm_buffer->rowimage; + register GLushort *ptr2 = (GLushort *) rowimg->data; + for (i=0;i<n;i++) { + PACK_TRUEDITHER( ptr2[i], x+i, y, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ); + } + XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 ); + } +} + + +/* + * Write a span of PF_5R6G5B pixels to a pixmap (no alpha). + */ +static void write_span_rgb_5R6G5B_pixmap( RGB_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc2; + register GLuint i; + y = FLIP(xmesa->xm_buffer, y); + if (mask) { + for (i=0;i<n;i++,x++) { + if (mask[i]) { + XMesaSetForeground( dpy, gc, PACK_5R6G5B( rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] )); + XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y ); + } + } + } + else { + /* draw all pixels */ + XMesaImage *rowimg = xmesa->xm_buffer->rowimage; + register GLushort *ptr2 = (GLushort *) rowimg->data; + for (i=0;i<n;i++) { + ptr2[i] = PACK_5R6G5B( rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] ); + } + XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 ); + } +} + + +/* + * Write a span of PF_DITHER_5R6G5B pixels to a pixmap (no alpha). + */ +static void write_span_rgb_DITHER_5R6G5B_pixmap( RGB_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc2; + register GLuint i; + y = FLIP(xmesa->xm_buffer, y); + if (mask) { + for (i=0;i<n;i++,x++) { + if (mask[i]) { + unsigned long p; + PACK_TRUEDITHER(p, x, y, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP]); + XMesaSetForeground( dpy, gc, p ); + XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y ); + } + } + } + else { + /* draw all pixels */ + XMesaImage *rowimg = xmesa->xm_buffer->rowimage; + register GLushort *ptr2 = (GLushort *) rowimg->data; + for (i=0;i<n;i++) { + PACK_TRUEDITHER( ptr2[i], x+i, y, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] ); + } + XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 ); + } +} + + + +/* + * Write a span of PF_DITHER pixels to a pixmap. + */ +static void write_span_DITHER_pixmap( RGBA_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc2; + register GLuint i; + XDITHER_SETUP(y); + y = FLIP(xmesa->xm_buffer, y); + if (mask) { + for (i=0;i<n;i++,x++) { + if (mask[i]) { + XMesaSetForeground( dpy, gc, XDITHER(x, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]) ); + XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y ); + } + } + } + else { + /* draw all pixels */ + XMesaImage *rowimg = xmesa->xm_buffer->rowimage; + for (i=0;i<n;i++) { + XMesaPutPixel( rowimg, i, 0, XDITHER(x+i, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]) ); + } + XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 ); + } +} + + +/* + * Write a span of PF_DITHER pixels to a pixmap (no alpha). + */ +static void write_span_rgb_DITHER_pixmap( RGB_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc2; + register GLuint i; + XDITHER_SETUP(y); + y = FLIP(xmesa->xm_buffer, y); + if (mask) { + for (i=0;i<n;i++,x++) { + if (mask[i]) { + XMesaSetForeground( dpy, gc, XDITHER(x, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP]) ); + XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y ); + } + } + } + else { + /* draw all pixels */ + XMesaImage *rowimg = xmesa->xm_buffer->rowimage; + for (i=0;i<n;i++) { + XMesaPutPixel( rowimg, i, 0, XDITHER(x+i, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP]) ); + } + XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 ); + } +} + + +/* + * Write a span of PF_1BIT pixels to a pixmap. + */ +static void write_span_1BIT_pixmap( RGBA_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc2; + register GLuint i; + SETUP_1BIT; + y = FLIP(xmesa->xm_buffer, y); + if (mask) { + for (i=0;i<n;i++,x++) { + if (mask[i]) { + XMesaSetForeground( dpy, gc, + DITHER_1BIT( x, y, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ) ); + XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y ); + } + } + } + else { + /* draw all pixels */ + XMesaImage *rowimg = xmesa->xm_buffer->rowimage; + for (i=0;i<n;i++) { + XMesaPutPixel( rowimg, i, 0, + DITHER_1BIT( x+i, y, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ) ); + } + XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 ); + } +} + + +/* + * Write a span of PF_1BIT pixels to a pixmap (no alpha). + */ +static void write_span_rgb_1BIT_pixmap( RGB_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc2; + register GLuint i; + SETUP_1BIT; + y = FLIP(xmesa->xm_buffer, y); + if (mask) { + for (i=0;i<n;i++,x++) { + if (mask[i]) { + XMesaSetForeground( dpy, gc, + DITHER_1BIT(x, y, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP]) ); + XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y ); + } + } + } + else { + /* draw all pixels */ + XMesaImage *rowimg = xmesa->xm_buffer->rowimage; + for (i=0;i<n;i++) { + XMesaPutPixel( rowimg, i, 0, + DITHER_1BIT(x+i, y, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP]) ); + } + XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 ); + } +} + + +/* + * Write a span of PF_HPCR pixels to a pixmap. + */ +static void write_span_HPCR_pixmap( RGBA_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc2; + register GLuint i; + y = FLIP(xmesa->xm_buffer, y); + if (mask) { + for (i=0;i<n;i++,x++) { + if (mask[i]) { + XMesaSetForeground( dpy, gc, + DITHER_HPCR( x, y, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ) ); + XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y ); + } + } + } + else { + XMesaImage *rowimg = xmesa->xm_buffer->rowimage; + register GLubyte *ptr = (GLubyte *) xmesa->xm_buffer->rowimage->data; + for (i=0;i<n;i++) { + ptr[i] = DITHER_HPCR( (x+i), y, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ); + } + XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 ); + } +} + + +/* + * Write a span of PF_HPCR pixels to a pixmap (no alpha). + */ +static void write_span_rgb_HPCR_pixmap( RGB_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc2; + register GLuint i; + y = FLIP(xmesa->xm_buffer, y); + if (mask) { + for (i=0;i<n;i++,x++) { + if (mask[i]) { + XMesaSetForeground( dpy, gc, + DITHER_HPCR(x, y, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP]) ); + XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y ); + } + } + } + else { + XMesaImage *rowimg = xmesa->xm_buffer->rowimage; + register GLubyte *ptr = (GLubyte *) xmesa->xm_buffer->rowimage->data; + for (i=0;i<n;i++) { + ptr[i] = DITHER_HPCR( (x+i), y, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] ); + } + XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 ); + } +} + + +/* + * Write a span of PF_LOOKUP pixels to a pixmap. + */ +static void write_span_LOOKUP_pixmap( RGBA_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc2; + register GLuint i; + LOOKUP_SETUP; + y = FLIP(xmesa->xm_buffer, y); + if (mask) { + for (i=0;i<n;i++,x++) { + if (mask[i]) { + XMesaSetForeground( dpy, gc, LOOKUP( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ) ); + XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y ); + } + } + } + else { + XMesaImage *rowimg = xmesa->xm_buffer->rowimage; + for (i=0;i<n;i++) { + XMesaPutPixel( rowimg, i, 0, LOOKUP(rgba[i][RCOMP],rgba[i][GCOMP],rgba[i][BCOMP]) ); + } + XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 ); + } +} + + +/* + * Write a span of PF_LOOKUP pixels to a pixmap (no alpha). + */ +static void write_span_rgb_LOOKUP_pixmap( RGB_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc2; + register GLuint i; + LOOKUP_SETUP; + y = FLIP(xmesa->xm_buffer, y); + if (mask) { + for (i=0;i<n;i++,x++) { + if (mask[i]) { + XMesaSetForeground( dpy, gc, LOOKUP( rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] ) ); + XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y ); + } + } + } + else { + XMesaImage *rowimg = xmesa->xm_buffer->rowimage; + for (i=0;i<n;i++) { + XMesaPutPixel( rowimg, i, 0, LOOKUP(rgb[i][RCOMP],rgb[i][GCOMP],rgb[i][BCOMP]) ); + } + XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 ); + } +} + + + +/* + * Write a span of PF_GRAYSCALE pixels to a pixmap. + */ +static void write_span_GRAYSCALE_pixmap( RGBA_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc2; + register GLuint i; + y = FLIP(xmesa->xm_buffer, y); + if (mask) { + for (i=0;i<n;i++,x++) { + if (mask[i]) { + XMesaSetForeground( dpy, gc, GRAY_RGB( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ) ); + XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y ); + } + } + } + else { + XMesaImage *rowimg = xmesa->xm_buffer->rowimage; + for (i=0;i<n;i++) { + XMesaPutPixel( rowimg, i, 0, GRAY_RGB(rgba[i][RCOMP],rgba[i][GCOMP],rgba[i][BCOMP]) ); + } + XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 ); + } +} + + +/* + * Write a span of PF_GRAYSCALE pixels to a pixmap (no alpha). + */ +static void write_span_rgb_GRAYSCALE_pixmap( RGB_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc2; + register GLuint i; + y = FLIP(xmesa->xm_buffer, y); + if (mask) { + for (i=0;i<n;i++,x++) { + if (mask[i]) { + XMesaSetForeground( dpy, gc, GRAY_RGB( rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] ) ); + XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y ); + } + } + } + else { + XMesaImage *rowimg = xmesa->xm_buffer->rowimage; + for (i=0;i<n;i++) { + XMesaPutPixel( rowimg, i, 0, GRAY_RGB(rgb[i][RCOMP],rgb[i][GCOMP],rgb[i][BCOMP]) ); + } + XMesaPutImage( dpy, buffer, gc, rowimg, 0, 0, x, y, n, 1 ); + } +} + + +/* + * Write a span of PF_TRUECOLOR pixels to an XImage. + */ +static void write_span_TRUECOLOR_ximage( RGBA_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaImage *img = xmesa->xm_buffer->backimage; + register GLuint i; + y = FLIP(xmesa->xm_buffer, y); + if (mask) { + for (i=0;i<n;i++,x++) { + if (mask[i]) { + unsigned long p; + PACK_TRUECOLOR( p, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ); + XMesaPutPixel( img, x, y, p ); + } + } + } + else { + /* draw all pixels */ + for (i=0;i<n;i++,x++) { + unsigned long p; + PACK_TRUECOLOR( p, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ); + XMesaPutPixel( img, x, y, p ); + } + } +} + + +/* + * Write a span of PF_TRUECOLOR pixels to an XImage (no alpha). + */ +static void write_span_rgb_TRUECOLOR_ximage( RGB_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaImage *img = xmesa->xm_buffer->backimage; + register GLuint i; + y = FLIP(xmesa->xm_buffer, y); + if (mask) { + for (i=0;i<n;i++,x++) { + if (mask[i]) { + unsigned long p; + PACK_TRUECOLOR( p, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] ); + XMesaPutPixel( img, x, y, p ); + } + } + } + else { + /* draw all pixels */ + for (i=0;i<n;i++,x++) { + unsigned long p; + PACK_TRUECOLOR( p, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] ); + XMesaPutPixel( img, x, y, p ); + } + } +} + + +/* + * Write a span of PF_TRUEDITHER pixels to an XImage. + */ +static void write_span_TRUEDITHER_ximage( RGBA_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaImage *img = xmesa->xm_buffer->backimage; + register GLuint i; + y = FLIP(xmesa->xm_buffer, y); + if (mask) { + for (i=0;i<n;i++,x++) { + if (mask[i]) { + unsigned long p; + PACK_TRUEDITHER(p, x, y, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]); + XMesaPutPixel( img, x, y, p ); + } + } + } + else { + /* draw all pixels */ + for (i=0;i<n;i++,x++) { + unsigned long p; + PACK_TRUEDITHER(p, x, y, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]); + XMesaPutPixel( img, x, y, p ); + } + } +} + + +/* + * Write a span of PF_TRUEDITHER pixels to an XImage (no alpha). + */ +static void write_span_rgb_TRUEDITHER_ximage( RGB_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaImage *img = xmesa->xm_buffer->backimage; + register GLuint i; + y = FLIP(xmesa->xm_buffer, y); + if (mask) { + for (i=0;i<n;i++,x++) { + if (mask[i]) { + unsigned long p; + PACK_TRUEDITHER(p, x, y, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP]); + XMesaPutPixel( img, x, y, p ); + } + } + } + else { + /* draw all pixels */ + for (i=0;i<n;i++,x++) { + unsigned long p; + PACK_TRUEDITHER(p, x, y, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP]); + XMesaPutPixel( img, x, y, p ); + } + } +} + + +/* + * Write a span of PF_8A8B8G8R-format pixels to an ximage. + */ +static void write_span_8A8B8G8R_ximage( RGBA_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + register GLuint i; + register GLuint *ptr = PIXELADDR4( xmesa->xm_buffer, x, y ); + if (mask) { + for (i=0;i<n;i++) { + if (mask[i]) { + ptr[i] = PACK_8A8B8G8R( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP], rgba[i][ACOMP] ); + } + } + } + else { + /* draw all pixels */ + for (i=0;i<n;i++) { + ptr[i] = PACK_8A8B8G8R( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP], rgba[i][ACOMP] ); + } + } +} + + +/* + * Write a span of PF_8A8B8G8R-format pixels to an ximage (no alpha). + */ +static void write_span_rgb_8A8B8G8R_ximage( RGB_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + register GLuint i; + register GLuint *ptr = PIXELADDR4( xmesa->xm_buffer, x, y ); + if (mask) { + for (i=0;i<n;i++) { + if (mask[i]) { + ptr[i] = PACK_8A8B8G8R( rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP], 255 ); + } + } + } + else { + /* draw all pixels */ + for (i=0;i<n;i++) { + ptr[i] = PACK_8A8B8G8R( rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP], 255 ); + } + } +} + + +/* + * Write a span of PF_8R8G8B-format pixels to an ximage. + */ +static void write_span_8R8G8B_ximage( RGBA_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + register GLuint i; + register GLuint *ptr = PIXELADDR4( xmesa->xm_buffer, x, y ); + if (mask) { + for (i=0;i<n;i++) { + if (mask[i]) { + ptr[i] = PACK_8R8G8B(rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]); + } + } + } + else { + for (i=0;i<n;i++) { + ptr[i] = PACK_8R8G8B(rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]); + } + } +} + + +/* + * Write a span of PF_8R8G8B24-format pixels to an ximage. + */ +static void write_span_8R8G8B24_ximage( RGBA_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + register GLuint i; + register GLubyte *ptr = (GLubyte *) PIXELADDR3( xmesa->xm_buffer, x, y ); + if (mask) { + for (i=0;i<n;i++) { + if (mask[i]) { + GLuint *ptr4 = (GLuint *) ptr; + register GLuint pixel = *ptr4; + switch (3 & (int)(ptr - (GLubyte*)ptr4)) { + case 0: + pixel &= 0xff000000; + pixel |= rgba[i][BCOMP]; + pixel |= rgba[i][GCOMP] << 8; + pixel |= rgba[i][RCOMP] << 16; + *ptr4 = pixel; + break; + case 3: + pixel &= 0x00ffffff; + pixel |= rgba[i][BCOMP] << 24; + *ptr4++ = pixel; + pixel = *ptr4 && 0xffff0000; + pixel |= rgba[i][GCOMP]; + pixel |= rgba[i][RCOMP] << 8; + *ptr4 = pixel; + break; + case 2: + pixel &= 0x0000ffff; + pixel |= rgba[i][BCOMP] << 16; + pixel |= rgba[i][GCOMP] << 24; + *ptr4++ = pixel; + pixel = *ptr4 && 0xffffff00; + pixel |= rgba[i][RCOMP]; + *ptr4 = pixel; + break; + case 1: + pixel &= 0x000000ff; + pixel |= rgba[i][BCOMP] << 8; + pixel |= rgba[i][GCOMP] << 16; + pixel |= rgba[i][RCOMP] << 24; + *ptr4 = pixel; + break; + } + } + ptr += 3; + } + } + else { + /* write all pixels */ + int w = n; + GLuint *ptr4 = (GLuint *) ptr; + register GLuint pixel = *ptr4; + int index = (int)(ptr - (GLubyte *)ptr4); + register GLuint i = 0; + switch (index) { + case 0: + break; + case 1: + pixel &= 0x00ffffff; + pixel |= rgba[i][BCOMP] << 24; + *ptr4++ = pixel; + pixel = *ptr4 && 0xffff0000; + pixel |= rgba[i][GCOMP]; + pixel |= rgba[i++][RCOMP] << 8; + *ptr4 = pixel; + if (0 == --w) + break; + case 2: + pixel &= 0x0000ffff; + pixel |= rgba[i][BCOMP] << 16; + pixel |= rgba[i][GCOMP] << 24; + *ptr4++ = pixel; + pixel = *ptr4 && 0xffffff00; + pixel |= rgba[i++][RCOMP]; + *ptr4 = pixel; + if (0 == --w) + break; + case 3: + pixel &= 0x000000ff; + pixel |= rgba[i][BCOMP] << 8; + pixel |= rgba[i][GCOMP] << 16; + pixel |= rgba[i++][RCOMP] << 24; + *ptr4++ = pixel; + if (0 == --w) + break; + break; + } + while (w > 3) { + pixel = rgba[i][BCOMP]; + pixel |= rgba[i][GCOMP] << 8; + pixel |= rgba[i++][RCOMP] << 16; + pixel |= rgba[i][BCOMP] << 24; + *ptr4++ = pixel; + pixel = rgba[i][GCOMP]; + pixel |= rgba[i++][RCOMP] << 8; + pixel |= rgba[i][BCOMP] << 16; + pixel |= rgba[i][GCOMP] << 24; + *ptr4++ = pixel; + pixel = rgba[i++][RCOMP]; + pixel |= rgba[i][BCOMP] << 8; + pixel |= rgba[i][GCOMP] << 16; + pixel |= rgba[i++][RCOMP] << 24; + *ptr4++ = pixel; + w -= 4; + } + switch (w) { + case 0: + break; + case 1: + pixel = *ptr4 & 0xff000000; + pixel |= rgba[i][BCOMP]; + pixel |= rgba[i][GCOMP] << 8; + pixel |= rgba[i][RCOMP] << 16; + *ptr4 = pixel; + break; + case 2: + pixel = rgba[i][BCOMP]; + pixel |= rgba[i][GCOMP] << 8; + pixel |= rgba[i++][RCOMP] << 16; + pixel |= rgba[i][BCOMP] << 24; + *ptr4++ = pixel; + pixel = *ptr4 & 0xffff0000; + pixel |= rgba[i][GCOMP]; + pixel |= rgba[i][RCOMP] << 8; + *ptr4 = pixel; + break; + case 3: + pixel = rgba[i][BCOMP]; + pixel |= rgba[i][GCOMP] << 8; + pixel |= rgba[i++][RCOMP] << 16; + pixel |= rgba[i][BCOMP] << 24; + *ptr4++ = pixel; + pixel = rgba[i][GCOMP]; + pixel |= rgba[i++][RCOMP] << 8; + pixel |= rgba[i][BCOMP] << 16; + pixel |= rgba[i][GCOMP] << 24; + *ptr4++ = pixel; + pixel = *ptr4 & 0xffffff00; + pixel |= rgba[i][RCOMP]; + *ptr4 = pixel; + break; + } + } +} + + +/* + * Write a span of PF_8R8G8B-format pixels to an ximage (no alpha). + */ +static void write_span_rgb_8R8G8B_ximage( RGB_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + register GLuint i; + register GLuint *ptr = PIXELADDR4( xmesa->xm_buffer, x, y ); + if (mask) { + for (i=0;i<n;i++) { + if (mask[i]) { + ptr[i] = PACK_8R8G8B(rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP]); + } + } + } + else { + /* draw all pixels */ + for (i=0;i<n;i++) { + ptr[i] = PACK_8R8G8B(rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP]); + } + } +} + + +/* + * Write a span of PF_8R8G8B24-format pixels to an ximage (no alpha). + */ +static void write_span_rgb_8R8G8B24_ximage( RGB_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + register GLuint i; + register GLubyte *ptr = (GLubyte *) PIXELADDR3( xmesa->xm_buffer, x, y ); + if (mask) { + for (i=0;i<n;i++) { + if (mask[i]) { + *ptr++ = rgb[i][BCOMP]; + *ptr++ = rgb[i][GCOMP]; + *ptr++ = rgb[i][RCOMP]; + } + else { + ptr += 3; + } + } + } + else { + /* draw all pixels */ + for (i=0;i<n;i++) { + *ptr++ = rgb[i][BCOMP]; + *ptr++ = rgb[i][GCOMP]; + *ptr++ = rgb[i][RCOMP]; + } + } +} + + +/* + * Write a span of PF_5R6G5B-format pixels to an ximage. + */ +static void write_span_5R6G5B_ximage( RGBA_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + register GLuint i; + register GLushort *ptr = PIXELADDR2( xmesa->xm_buffer, x, y ); + if (mask) { + for (i=0;i<n;i++) { + if (mask[i]) { + ptr[i] = PACK_5R6G5B( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ); + } + } + } + else { + /* draw all pixels */ +#if defined(__i386__) /* word stores don't have to be on 4-byte boundaries */ + GLuint *ptr32 = (GLuint *) ptr; + GLuint extraPixel = (n & 1); + n -= extraPixel; + for (i = 0; i < n; i += 2) { + GLuint p0, p1; + p0 = PACK_5R6G5B(rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]); + p1 = PACK_5R6G5B(rgba[i+1][RCOMP], rgba[i+1][GCOMP], rgba[i+1][BCOMP]); + *ptr32++ = (p1 << 16) | p0; + } + if (extraPixel) { + ptr[n] = PACK_5R6G5B(rgba[n][RCOMP], rgba[n][GCOMP], rgba[n][BCOMP]); + } +#else + for (i = 0; i < n; i++) { + ptr[i] = PACK_5R6G5B(rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]); + } +#endif + } +} + + +/* + * Write a span of PF_DITHER_5R6G5B-format pixels to an ximage. + */ +static void write_span_DITHER_5R6G5B_ximage( RGBA_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + register GLuint i; + register GLushort *ptr = PIXELADDR2( xmesa->xm_buffer, x, y ); + if (mask) { + for (i=0;i<n;i++,x++) { + if (mask[i]) { + PACK_TRUEDITHER( ptr[i], x, y, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ); + } + } + } + else { + /* draw all pixels */ +#if defined(__i386__) /* word stores don't have to be on 4-byte boundaries */ + GLuint *ptr32 = (GLuint *) ptr; + GLuint extraPixel = (n & 1); + n -= extraPixel; + for (i = 0; i < n; i += 2, x += 2) { + GLuint p0, p1; + PACK_TRUEDITHER( p0, x, y, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ); + PACK_TRUEDITHER( p1, x+1, y, rgba[i+1][RCOMP], rgba[i+1][GCOMP], rgba[i+1][BCOMP] ); + *ptr32++ = (p1 << 16) | p0; + } + if (extraPixel) { + PACK_TRUEDITHER( ptr[n], x+n, y, rgba[n][RCOMP], rgba[n][GCOMP], rgba[n][BCOMP]); + } +#else + for (i = 0; i < n; i++, x++) { + PACK_TRUEDITHER( ptr[i], x, y, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]); + } +#endif + } +} + + +/* + * Write a span of PF_5R6G5B-format pixels to an ximage (no alpha). + */ +static void write_span_rgb_5R6G5B_ximage( RGB_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + register GLuint i; + register GLushort *ptr = PIXELADDR2( xmesa->xm_buffer, x, y ); + if (mask) { + for (i=0;i<n;i++) { + if (mask[i]) { + ptr[i] = PACK_5R6G5B( rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] ); + } + } + } + else { + /* draw all pixels */ +#if defined(__i386__) /* word stores don't have to be on 4-byte boundaries */ + GLuint *ptr32 = (GLuint *) ptr; + GLuint extraPixel = (n & 1); + n -= extraPixel; + for (i = 0; i < n; i += 2) { + GLuint p0, p1; + p0 = PACK_5R6G5B(rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP]); + p1 = PACK_5R6G5B(rgb[i+1][RCOMP], rgb[i+1][GCOMP], rgb[i+1][BCOMP]); + *ptr32++ = (p1 << 16) | p0; + } + if (extraPixel) { + ptr[n] = PACK_5R6G5B(rgb[n][RCOMP], rgb[n][GCOMP], rgb[n][BCOMP]); + } +#else + for (i=0;i<n;i++) { + ptr[i] = PACK_5R6G5B( rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] ); + } +#endif + } +} + + +/* + * Write a span of PF_DITHER_5R6G5B-format pixels to an ximage (no alpha). + */ +static void write_span_rgb_DITHER_5R6G5B_ximage( RGB_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + register GLuint i; + register GLushort *ptr = PIXELADDR2( xmesa->xm_buffer, x, y ); + if (mask) { + for (i=0;i<n;i++,x++) { + if (mask[i]) { + PACK_TRUEDITHER( ptr[i], x, y, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] ); + } + } + } + else { + /* draw all pixels */ +#if defined(__i386__) /* word stores don't have to be on 4-byte boundaries */ + GLuint *ptr32 = (GLuint *) ptr; + GLuint extraPixel = (n & 1); + n -= extraPixel; + for (i = 0; i < n; i += 2, x += 2) { + GLuint p0, p1; + PACK_TRUEDITHER( p0, x, y, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] ); + PACK_TRUEDITHER( p1, x+1, y, rgb[i+1][RCOMP], rgb[i+1][GCOMP], rgb[i+1][BCOMP] ); + *ptr32++ = (p1 << 16) | p0; + } + if (extraPixel) { + PACK_TRUEDITHER( ptr[n], x+n, y, rgb[n][RCOMP], rgb[n][GCOMP], rgb[n][BCOMP]); + } +#else + for (i=0;i<n;i++,x++) { + PACK_TRUEDITHER( ptr[i], x, y, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] ); + } +#endif + } +} + + +/* + * Write a span of PF_DITHER pixels to an XImage. + */ +static void write_span_DITHER_ximage( RGBA_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaImage *img = xmesa->xm_buffer->backimage; + register GLuint i; + int yy = FLIP(xmesa->xm_buffer, y); + XDITHER_SETUP(yy); + if (mask) { + for (i=0;i<n;i++,x++) { + if (mask[i]) { + XMesaPutPixel( img, x, yy, XDITHER( x, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ) ); + } + } + } + else { + /* draw all pixels */ + for (i=0;i<n;i++,x++) { + XMesaPutPixel( img, x, yy, XDITHER( x, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ) ); + } + } +} + + +/* + * Write a span of PF_DITHER pixels to an XImage (no alpha). + */ +static void write_span_rgb_DITHER_ximage( RGB_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaImage *img = xmesa->xm_buffer->backimage; + register GLuint i; + int yy = FLIP(xmesa->xm_buffer, y); + XDITHER_SETUP(yy); + if (mask) { + for (i=0;i<n;i++,x++) { + if (mask[i]) { + XMesaPutPixel( img, x, yy, XDITHER( x, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] ) ); + } + } + } + else { + /* draw all pixels */ + for (i=0;i<n;i++,x++) { + XMesaPutPixel( img, x, yy, XDITHER( x, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] ) ); + } + } +} + + + +/* + * Write a span of 8-bit PF_DITHER pixels to an XImage. + */ +static void write_span_DITHER8_ximage( RGBA_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + register GLuint i; + register GLubyte *ptr = PIXELADDR1( xmesa->xm_buffer, x, y ); + XDITHER_SETUP(y); + if (mask) { + for (i=0;i<n;i++,x++) { + if (mask[i]) { + ptr[i] = (GLubyte) XDITHER( x, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ); + } + } + } + else { + for (i=0;i<n;i++,x++) { + ptr[i] = (GLubyte) XDITHER( x, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ); + } + } +} + + +static void write_span_rgb_DITHER8_ximage( RGB_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + register GLuint i; + register GLubyte *ptr = PIXELADDR1( xmesa->xm_buffer, x, y ); + XDITHER_SETUP(y); + if (mask) { + for (i=0;i<n;i++,x++) { + if (mask[i]) { + ptr[i] = (GLubyte) XDITHER( x, rgb[i][0], rgb[i][1], rgb[i][2] ); + } + } + } + else { + const GLubyte *data = (GLubyte *) rgb; + for (i=0;i<n;i++,x++) { + /*ptr[i] = XDITHER( x, rgb[i][0], rgb[i][1], rgb[i][2] );*/ + ptr[i] = (GLubyte) XDITHER( x, data[i+i+i], data[i+i+i+1], data[i+i+i+2] ); + } + } +} + + + +/* + * Write a span of PF_1BIT pixels to an XImage. + */ +static void write_span_1BIT_ximage( RGBA_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaImage *img = xmesa->xm_buffer->backimage; + register GLuint i; + SETUP_1BIT; + y = FLIP(xmesa->xm_buffer, y); + if (mask) { + for (i=0;i<n;i++,x++) { + if (mask[i]) { + XMesaPutPixel(img, x, y, DITHER_1BIT(x, y, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP])); + } + } + } + else { + for (i=0;i<n;i++,x++) { + XMesaPutPixel( img, x, y, DITHER_1BIT(x, y, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]) ); + } + } +} + + +/* + * Write a span of PF_1BIT pixels to an XImage (no alpha). + */ +static void write_span_rgb_1BIT_ximage( RGB_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaImage *img = xmesa->xm_buffer->backimage; + register GLuint i; + SETUP_1BIT; + y = FLIP(xmesa->xm_buffer, y); + if (mask) { + for (i=0;i<n;i++,x++) { + if (mask[i]) { + XMesaPutPixel(img, x, y, DITHER_1BIT(x, y, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP])); + } + } + } + else { + for (i=0;i<n;i++,x++) { + XMesaPutPixel( img, x, y, DITHER_1BIT(x, y, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP]) ); + } + } +} + + +/* + * Write a span of PF_HPCR pixels to an XImage. + */ +static void write_span_HPCR_ximage( RGBA_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + register GLuint i; + register GLubyte *ptr = PIXELADDR1( xmesa->xm_buffer, x, y ); + if (mask) { + for (i=0;i<n;i++,x++) { + if (mask[i]) { + ptr[i] = DITHER_HPCR( x, y, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ); + } + } + } + else { + /* draw all pixels */ + for (i=0;i<n;i++,x++) { + ptr[i] = DITHER_HPCR( x, y, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ); + } + } +} + + +/* + * Write a span of PF_HPCR pixels to an XImage (no alpha). + */ +static void write_span_rgb_HPCR_ximage( RGB_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + register GLuint i; + register GLubyte *ptr = PIXELADDR1( xmesa->xm_buffer, x, y ); + if (mask) { + for (i=0;i<n;i++,x++) { + if (mask[i]) { + ptr[i] = DITHER_HPCR( x, y, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] ); + } + } + } + else { + /* draw all pixels */ + for (i=0;i<n;i++,x++) { + ptr[i] = DITHER_HPCR( x, y, rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] ); + } + } +} + + +/* + * Write a span of PF_LOOKUP pixels to an XImage. + */ +static void write_span_LOOKUP_ximage( RGBA_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaImage *img = xmesa->xm_buffer->backimage; + register GLuint i; + LOOKUP_SETUP; + y = FLIP(xmesa->xm_buffer, y); + if (mask) { + for (i=0;i<n;i++,x++) { + if (mask[i]) { + XMesaPutPixel( img, x, y, LOOKUP( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ) ); + } + } + } + else { + /* draw all pixels */ + for (i=0;i<n;i++,x++) { + XMesaPutPixel( img, x, y, LOOKUP( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ) ); + } + } +} + + +/* + * Write a span of PF_LOOKUP pixels to an XImage (no alpha). + */ +static void write_span_rgb_LOOKUP_ximage( RGB_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaImage *img = xmesa->xm_buffer->backimage; + register GLuint i; + LOOKUP_SETUP; + y = FLIP(xmesa->xm_buffer, y); + if (mask) { + for (i=0;i<n;i++,x++) { + if (mask[i]) { + XMesaPutPixel( img, x, y, LOOKUP( rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] ) ); + } + } + } + else { + /* draw all pixels */ + for (i=0;i<n;i++,x++) { + XMesaPutPixel( img, x, y, LOOKUP( rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] ) ); + } + } +} + + +/* + * Write a span of 8-bit PF_LOOKUP pixels to an XImage. + */ +static void write_span_LOOKUP8_ximage( RGBA_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + register GLuint i; + register GLubyte *ptr = PIXELADDR1( xmesa->xm_buffer, x, y ); + LOOKUP_SETUP; + if (mask) { + for (i=0;i<n;i++,x++) { + if (mask[i]) { + ptr[i] = (GLubyte) LOOKUP( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ); + } + } + } + else { + /* draw all pixels */ + for (i=0;i<n;i++,x++) { + ptr[i] = (GLubyte) LOOKUP( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ); + } + } +} + + +static void write_rgb_LOOKUP8_ximage( const GLcontext *ctx, + GLuint n, GLint x, GLint y, + CONST GLubyte rgb[][3], + const GLubyte mask[] ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + register GLuint i; + register GLubyte *ptr = PIXELADDR1( xmesa->xm_buffer, x, y ); + LOOKUP_SETUP; + if (mask) { + for (i=0;i<n;i++,x++) { + if (mask[i]) { + ptr[i] = (GLubyte) LOOKUP( rgb[i][0], rgb[i][1], rgb[i][2] ); + } + } + } + else { + /* draw all pixels */ + const GLubyte *data = (GLubyte *) rgb; + for (i=0;i<n;i++,x++) { + /*ptr[i] = LOOKUP( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] );*/ + ptr[i] = (GLubyte) LOOKUP( data[i+i+i], data[i+i+i+1], data[i+i+i+2] ); + } + } +} + + +/* + * Write a span of PF_GRAYSCALE pixels to an XImage. + */ +static void write_span_GRAYSCALE_ximage( RGBA_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaImage *img = xmesa->xm_buffer->backimage; + register GLuint i; + y = FLIP(xmesa->xm_buffer, y); + if (mask) { + for (i=0;i<n;i++,x++) { + if (mask[i]) { + XMesaPutPixel( img, x, y, GRAY_RGB( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ) ); + } + } + } + else { + /* draw all pixels */ + for (i=0;i<n;i++,x++) { + XMesaPutPixel( img, x, y, GRAY_RGB( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ) ); + } + } +} + + +/* + * Write a span of PF_GRAYSCALE pixels to an XImage (no alpha). + */ +static void write_span_rgb_GRAYSCALE_ximage( RGB_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaImage *img = xmesa->xm_buffer->backimage; + register GLuint i; + y = FLIP(xmesa->xm_buffer, y); + if (mask) { + for (i=0;i<n;i++,x++) { + if (mask[i]) { + XMesaPutPixel( img, x, y, GRAY_RGB( rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] ) ); + } + } + } + else { + /* draw all pixels */ + for (i=0;i<n;i++,x++) { + XMesaPutPixel( img, x, y, GRAY_RGB( rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] ) ); + } + } +} + + +/* + * Write a span of 8-bit PF_GRAYSCALE pixels to an XImage. + */ +static void write_span_GRAYSCALE8_ximage( RGBA_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + register GLuint i; + register GLubyte *ptr = PIXELADDR1( xmesa->xm_buffer, x, y ); + if (mask) { + for (i=0;i<n;i++) { + if (mask[i]) { + ptr[i] = (GLubyte) GRAY_RGB( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ); + } + } + } + else { + /* draw all pixels */ + for (i=0;i<n;i++) { + ptr[i] = (GLubyte) GRAY_RGB( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ); + } + } +} + + +/* + * Write a span of 8-bit PF_GRAYSCALE pixels to an XImage (no alpha). + */ +static void write_span_rgb_GRAYSCALE8_ximage( RGB_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + register GLuint i; + register GLubyte *ptr = PIXELADDR1( xmesa->xm_buffer, x, y ); + if (mask) { + for (i=0;i<n;i++) { + if (mask[i]) { + ptr[i] = (GLubyte) GRAY_RGB( rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] ); + } + } + } + else { + /* draw all pixels */ + for (i=0;i<n;i++) { + ptr[i] = (GLubyte) GRAY_RGB( rgb[i][RCOMP], rgb[i][GCOMP], rgb[i][BCOMP] ); + } + } +} + + + + +/**********************************************************************/ +/*** Write COLOR PIXEL functions ***/ +/**********************************************************************/ + + +#define RGBA_PIXEL_ARGS const GLcontext *ctx, \ + GLuint n, const GLint x[], const GLint y[], \ + CONST GLubyte rgba[][4], const GLubyte mask[] + + +/* + * Write an array of PF_TRUECOLOR pixels to a pixmap. + */ +static void write_pixels_TRUECOLOR_pixmap( RGBA_PIXEL_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc2; + register GLuint i; + for (i=0;i<n;i++) { + if (mask[i]) { + unsigned long p; + PACK_TRUECOLOR( p, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ); + XMesaSetForeground( dpy, gc, p ); + XMesaDrawPoint( dpy, buffer, gc, (int) x[i], (int) FLIP(xmesa->xm_buffer, y[i]) ); + } + } +} + + +/* + * Write an array of PF_TRUEDITHER pixels to a pixmap. + */ +static void write_pixels_TRUEDITHER_pixmap( RGBA_PIXEL_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc2; + register GLuint i; + for (i=0;i<n;i++) { + if (mask[i]) { + unsigned long p; + PACK_TRUEDITHER(p, x[i], y[i], rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]); + XMesaSetForeground( dpy, gc, p ); + XMesaDrawPoint( dpy, buffer, gc, (int) x[i], (int) FLIP(xmesa->xm_buffer, y[i]) ); + } + } +} + + +/* + * Write an array of PF_8A8B8G8R pixels to a pixmap. + */ +static void write_pixels_8A8B8G8R_pixmap( RGBA_PIXEL_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc2; + register GLuint i; + for (i=0;i<n;i++) { + if (mask[i]) { + XMesaSetForeground( dpy, gc, + PACK_8A8B8G8R( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP], rgba[i][ACOMP] )); + XMesaDrawPoint( dpy, buffer, gc, (int) x[i], (int) FLIP(xmesa->xm_buffer, y[i]) ); + } + } +} + + +/* + * Write an array of PF_8R8G8B pixels to a pixmap. + */ +static void write_pixels_8R8G8B_pixmap( RGBA_PIXEL_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc2; + register GLuint i; + for (i=0;i<n;i++) { + if (mask[i]) { + XMesaSetForeground( dpy, gc, PACK_8R8G8B( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ) ); + XMesaDrawPoint( dpy, buffer, gc, (int) x[i], (int) FLIP(xmesa->xm_buffer, y[i]) ); + } + } +} + + +/* + * Write an array of PF_8R8G8B24 pixels to a pixmap. + */ +static void write_pixels_8R8G8B24_pixmap( RGBA_PIXEL_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc2; + register GLuint i; + for (i=0;i<n;i++) { + if (mask[i]) { + XMesaSetForeground( dpy, gc, PACK_8R8G8B( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ) ); + XMesaDrawPoint( dpy, buffer, gc, (int) x[i], (int) FLIP(xmesa->xm_buffer, y[i]) ); + } + } +} + + +/* + * Write an array of PF_5R6G5B pixels to a pixmap. + */ +static void write_pixels_5R6G5B_pixmap( RGBA_PIXEL_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc2; + register GLuint i; + for (i=0;i<n;i++) { + if (mask[i]) { + XMesaSetForeground( dpy, gc, PACK_5R6G5B( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ) ); + XMesaDrawPoint( dpy, buffer, gc, (int) x[i], (int) FLIP(xmesa->xm_buffer, y[i]) ); + } + } +} + + +/* + * Write an array of PF_DITHER_5R6G5B pixels to a pixmap. + */ +static void write_pixels_DITHER_5R6G5B_pixmap( RGBA_PIXEL_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc2; + register GLuint i; + for (i=0;i<n;i++) { + if (mask[i]) { + unsigned long p; + PACK_TRUEDITHER(p, x[i], y[i], rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ); + XMesaSetForeground( dpy, gc, p ); + XMesaDrawPoint( dpy, buffer, gc, (int) x[i], (int) FLIP(xmesa->xm_buffer, y[i]) ); + } + } +} + + +/* + * Write an array of PF_DITHER pixels to a pixmap. + */ +static void write_pixels_DITHER_pixmap( RGBA_PIXEL_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc2; + register GLuint i; + DITHER_SETUP; + for (i=0;i<n;i++) { + if (mask[i]) { + XMesaSetForeground( dpy, gc, + DITHER(x[i], y[i], rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]) ); + XMesaDrawPoint( dpy, buffer, gc, (int) x[i], (int) FLIP(xmesa->xm_buffer, y[i]) ); + } + } +} + + +/* + * Write an array of PF_1BIT pixels to a pixmap. + */ +static void write_pixels_1BIT_pixmap( RGBA_PIXEL_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc2; + register GLuint i; + SETUP_1BIT; + for (i=0;i<n;i++) { + if (mask[i]) { + XMesaSetForeground( dpy, gc, + DITHER_1BIT( x[i], y[i], rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] )); + XMesaDrawPoint( dpy, buffer, gc, (int) x[i], (int) FLIP(xmesa->xm_buffer, y[i]) ); + } + } +} + + +/* + * Write an array of PF_HPCR pixels to a pixmap. + */ +static void write_pixels_HPCR_pixmap( RGBA_PIXEL_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc2; + register GLuint i; + for (i=0;i<n;i++) { + if (mask[i]) { + XMesaSetForeground( dpy, gc, + DITHER_HPCR( x[i], y[i], rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] )); + XMesaDrawPoint( dpy, buffer, gc, (int) x[i], (int) FLIP(xmesa->xm_buffer, y[i]) ); + } + } +} + + +/* + * Write an array of PF_LOOKUP pixels to a pixmap. + */ +static void write_pixels_LOOKUP_pixmap( RGBA_PIXEL_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc2; + register GLuint i; + LOOKUP_SETUP; + for (i=0;i<n;i++) { + if (mask[i]) { + XMesaSetForeground( dpy, gc, LOOKUP( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ) ); + XMesaDrawPoint( dpy, buffer, gc, (int) x[i], (int) FLIP(xmesa->xm_buffer, y[i]) ); + } + } +} + + +/* + * Write an array of PF_GRAYSCALE pixels to a pixmap. + */ +static void write_pixels_GRAYSCALE_pixmap( RGBA_PIXEL_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc2; + register GLuint i; + for (i=0;i<n;i++) { + if (mask[i]) { + XMesaSetForeground( dpy, gc, GRAY_RGB( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ) ); + XMesaDrawPoint( dpy, buffer, gc, (int) x[i], (int) FLIP(xmesa->xm_buffer, y[i]) ); + } + } +} + + +/* + * Write an array of PF_TRUECOLOR pixels to an ximage. + */ +static void write_pixels_TRUECOLOR_ximage( RGBA_PIXEL_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaImage *img = xmesa->xm_buffer->backimage; + register GLuint i; + for (i=0;i<n;i++) { + if (mask[i]) { + unsigned long p; + PACK_TRUECOLOR( p, rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ); + XMesaPutPixel( img, x[i], FLIP(xmesa->xm_buffer, y[i]), p ); + } + } +} + + +/* + * Write an array of PF_TRUEDITHER pixels to an XImage. + */ +static void write_pixels_TRUEDITHER_ximage( RGBA_PIXEL_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaImage *img = xmesa->xm_buffer->backimage; + register GLuint i; + for (i=0;i<n;i++) { + if (mask[i]) { + unsigned long p; + PACK_TRUEDITHER(p, x[i], FLIP(xmesa->xm_buffer, y[i]), rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]); + XMesaPutPixel( img, x[i], FLIP(xmesa->xm_buffer, y[i]), p ); + } + } +} + + +/* + * Write an array of PF_8A8B8G8R pixels to an ximage. + */ +static void write_pixels_8A8B8G8R_ximage( RGBA_PIXEL_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + register GLuint i; + for (i=0;i<n;i++) { + if (mask[i]) { + GLuint *ptr = PIXELADDR4( xmesa->xm_buffer, x[i], y[i] ); + *ptr = PACK_8A8B8G8R( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP], rgba[i][ACOMP] ); + } + } +} + + +/* + * Write an array of PF_8R8G8B pixels to an ximage. + */ +static void write_pixels_8R8G8B_ximage( RGBA_PIXEL_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + register GLuint i; + for (i=0;i<n;i++) { + if (mask[i]) { + GLuint *ptr = PIXELADDR4( xmesa->xm_buffer, x[i], y[i] ); + *ptr = PACK_8R8G8B( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ); + } + } +} + + +/* + * Write an array of PF_8R8G8B24 pixels to an ximage. + */ +static void write_pixels_8R8G8B24_ximage( RGBA_PIXEL_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + register GLuint i; + for (i=0;i<n;i++) { + if (mask[i]) { + bgr_t *ptr = PIXELADDR3( xmesa->xm_buffer, x[i], y[i] ); + ptr->r = rgba[i][RCOMP]; + ptr->g = rgba[i][GCOMP]; + ptr->b = rgba[i][BCOMP]; + } + } +} + + +/* + * Write an array of PF_5R6G5B pixels to an ximage. + */ +static void write_pixels_5R6G5B_ximage( RGBA_PIXEL_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + register GLuint i; + for (i=0;i<n;i++) { + if (mask[i]) { + GLushort *ptr = PIXELADDR2( xmesa->xm_buffer, x[i], y[i] ); + *ptr = PACK_5R6G5B( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ); + } + } +} + + +/* + * Write an array of PF_DITHER_5R6G5B pixels to an ximage. + */ +static void write_pixels_DITHER_5R6G5B_ximage( RGBA_PIXEL_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + register GLuint i; + for (i=0;i<n;i++) { + if (mask[i]) { + GLushort *ptr = PIXELADDR2( xmesa->xm_buffer, x[i], y[i] ); + PACK_TRUEDITHER( *ptr, x[i], y[i], rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ); + } + } +} + + +/* + * Write an array of PF_DITHER pixels to an XImage. + */ +static void write_pixels_DITHER_ximage( RGBA_PIXEL_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaImage *img = xmesa->xm_buffer->backimage; + register GLuint i; + DITHER_SETUP; + for (i=0;i<n;i++) { + if (mask[i]) { + XMesaPutPixel( img, x[i], FLIP(xmesa->xm_buffer, y[i]), + DITHER( x[i], y[i], rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ) ); + } + } +} + + +/* + * Write an array of 8-bit PF_DITHER pixels to an XImage. + */ +static void write_pixels_DITHER8_ximage( RGBA_PIXEL_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + register GLuint i; + DITHER_SETUP; + for (i=0;i<n;i++) { + if (mask[i]) { + GLubyte *ptr = PIXELADDR1( xmesa->xm_buffer,x[i],y[i]); + *ptr = (GLubyte) DITHER( x[i], y[i], rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ); + } + } +} + + +/* + * Write an array of PF_1BIT pixels to an XImage. + */ +static void write_pixels_1BIT_ximage( RGBA_PIXEL_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaImage *img = xmesa->xm_buffer->backimage; + register GLuint i; + SETUP_1BIT; + for (i=0;i<n;i++) { + if (mask[i]) { + XMesaPutPixel( img, x[i], FLIP(xmesa->xm_buffer, y[i]), + DITHER_1BIT( x[i], y[i], rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] )); + } + } +} + + +/* + * Write an array of PF_HPCR pixels to an XImage. + */ +static void write_pixels_HPCR_ximage( RGBA_PIXEL_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + register GLuint i; + for (i=0;i<n;i++) { + if (mask[i]) { + GLubyte *ptr = PIXELADDR1( xmesa->xm_buffer,x[i],y[i]); + *ptr = (GLubyte) DITHER_HPCR( x[i], y[i], rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ); + } + } +} + + +/* + * Write an array of PF_LOOKUP pixels to an XImage. + */ +static void write_pixels_LOOKUP_ximage( RGBA_PIXEL_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaImage *img = xmesa->xm_buffer->backimage; + register GLuint i; + LOOKUP_SETUP; + for (i=0;i<n;i++) { + if (mask[i]) { + XMesaPutPixel( img, x[i], FLIP(xmesa->xm_buffer, y[i]), LOOKUP(rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP]) ); + } + } +} + + +/* + * Write an array of 8-bit PF_LOOKUP pixels to an XImage. + */ +static void write_pixels_LOOKUP8_ximage( RGBA_PIXEL_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + register GLuint i; + LOOKUP_SETUP; + for (i=0;i<n;i++) { + if (mask[i]) { + GLubyte *ptr = PIXELADDR1( xmesa->xm_buffer,x[i],y[i]); + *ptr = (GLubyte) LOOKUP( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ); + } + } +} + + +/* + * Write an array of PF_GRAYSCALE pixels to an XImage. + */ +static void write_pixels_GRAYSCALE_ximage( RGBA_PIXEL_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaImage *img = xmesa->xm_buffer->backimage; + register GLuint i; + for (i=0;i<n;i++) { + if (mask[i]) { + XMesaPutPixel( img, x[i], FLIP(xmesa->xm_buffer, y[i]), + GRAY_RGB( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ) ); + } + } +} + + +/* + * Write an array of 8-bit PF_GRAYSCALE pixels to an XImage. + */ +static void write_pixels_GRAYSCALE8_ximage( RGBA_PIXEL_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + register GLuint i; + for (i=0;i<n;i++) { + if (mask[i]) { + GLubyte *ptr = PIXELADDR1( xmesa->xm_buffer, x[i], y[i] ); + *ptr = (GLubyte) GRAY_RGB( rgba[i][RCOMP], rgba[i][GCOMP], rgba[i][BCOMP] ); + } + } +} + + + + +/**********************************************************************/ +/*** Write MONO COLOR SPAN functions ***/ +/**********************************************************************/ + +#define MONO_SPAN_ARGS const GLcontext *ctx, \ + GLuint n, GLint x, GLint y, const GLubyte mask[] + + +/* + * Write a span of identical pixels to a pixmap. The pixel value is + * the one set by DD.color() or DD.index(). + */ +static void write_span_mono_pixmap( MONO_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc1; + register GLuint i; + register GLboolean write_all; + y = FLIP(xmesa->xm_buffer, y); + write_all = GL_TRUE; + for (i=0;i<n;i++) { + if (!mask[i]) { + write_all = GL_FALSE; + break; + } + } + if (write_all) { + XMesaFillRectangle( dpy, buffer, gc, (int) x, (int) y, n, 1 ); + } + else { + for (i=0;i<n;i++,x++) { + if (mask[i]) { + XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y ); + } + } + } +} + + +/* + * Write a span of PF_TRUEDITHER pixels to a pixmap. The pixel value is + * the one set by DD.color() or DD.index(). + */ +static void write_span_mono_TRUEDITHER_pixmap( MONO_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc2; + register GLuint i; + register GLubyte r, g, b; + int yy = FLIP(xmesa->xm_buffer, y); + r = xmesa->red; + g = xmesa->green; + b = xmesa->blue; + for (i=0;i<n;i++,x++) { + if (mask[i]) { + unsigned long p; + PACK_TRUEDITHER(p, x, yy, r, g, b); + XMesaSetForeground( dpy, gc, p ); + XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) yy ); + } + } +} + + +/* + * Write a span of PF_DITHER pixels to a pixmap. The pixel value is + * the one set by DD.color() or DD.index(). + */ +static void write_span_mono_DITHER_pixmap( MONO_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc2; + register GLuint i; + register GLubyte r, g, b; + int yy = FLIP(xmesa->xm_buffer, y); + XDITHER_SETUP(yy); + r = xmesa->red; + g = xmesa->green; + b = xmesa->blue; + for (i=0;i<n;i++,x++) { + if (mask[i]) { + XMesaSetForeground( dpy, gc, XDITHER( x, r, g, b ) ); + XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) yy ); + } + } +} + + +/* + * Write a span of PF_1BIT pixels to a pixmap. The pixel value is + * the one set by DD.color() or DD.index(). + */ +static void write_span_mono_1BIT_pixmap( MONO_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc2; + register GLuint i; + register GLubyte r, g, b; + SETUP_1BIT; + r = xmesa->red; + g = xmesa->green; + b = xmesa->blue; + y = FLIP(xmesa->xm_buffer, y); + for (i=0;i<n;i++,x++) { + if (mask[i]) { + XMesaSetForeground( dpy, gc, DITHER_1BIT( x, y, r, g, b ) ); + XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y ); + } + } +} + + +/* + * Write a span of identical pixels to an XImage. The pixel value is + * the one set by DD.color() or DD.index(). + */ +static void write_span_mono_ximage( MONO_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaImage *img = xmesa->xm_buffer->backimage; + register GLuint i; + register unsigned long p = xmesa->pixel; + y = FLIP(xmesa->xm_buffer, y); + for (i=0;i<n;i++,x++) { + if (mask[i]) { + XMesaPutPixel( img, x, y, p ); + } + } +} + + +/* + * Write a span of identical PF_TRUEDITHER pixels to an XImage. The pixel + * value is the one set by DD.color(). + */ +static void write_span_mono_TRUEDITHER_ximage( MONO_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaImage *img = xmesa->xm_buffer->backimage; + GLuint i; + GLint r = xmesa->red; + GLint g = xmesa->green; + GLint b = xmesa->blue; + y = FLIP(xmesa->xm_buffer, y); + for (i=0;i<n;i++) { + if (mask[i]) { + unsigned long p; + PACK_TRUEDITHER( p, x+i, y, r, g, b); + XMesaPutPixel( img, x+i, y, p ); + } + } +} + + +/* + * Write a span of identical 8A8B8G8R pixels to an XImage. The pixel + * value is the one set by DD.color(). + */ +static void write_span_mono_8A8B8G8R_ximage( MONO_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + GLuint i, p, *ptr; + p = (GLuint) xmesa->pixel; + ptr = PIXELADDR4( xmesa->xm_buffer, x, y ); + for (i=0;i<n;i++) { + if (mask[i]) { + ptr[i] = p; + } + } +} + + +/* + * Write a span of identical 8R8G8B pixels to an XImage. The pixel + * value is the one set by DD.color(). + */ +static void write_span_mono_8R8G8B_ximage( MONO_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + GLuint i, p, *ptr; + p = (GLuint) xmesa->pixel; + ptr = PIXELADDR4( xmesa->xm_buffer, x, y ); + for (i=0;i<n;i++) { + if (mask[i]) { + ptr[i] = p; + } + } +} + + +/* + * Write a span of identical 8R8G8B pixels to an XImage. The pixel + * value is the one set by DD.color(). + */ +static void write_span_mono_8R8G8B24_ximage( MONO_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + const GLubyte r = (GLubyte) ((xmesa->pixel >> 16) & 0xff); + const GLubyte g = (GLubyte) ((xmesa->pixel >> 8 ) & 0xff); + const GLubyte b = (GLubyte) ((xmesa->pixel ) & 0xff); + GLuint i; + bgr_t *ptr = PIXELADDR3( xmesa->xm_buffer, x, y ); + for (i=0;i<n;i++) { + if (mask[i]) { + ptr[i].r = r; + ptr[i].g = g; + ptr[i].b = b; + } + } +} + + +/* + * Write a span of identical DITHER pixels to an XImage. The pixel + * value is the one set by DD.color(). + */ +static void write_span_mono_DITHER_ximage( MONO_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaImage *img = xmesa->xm_buffer->backimage; + register GLuint i; + register GLubyte r, g, b; + int yy = FLIP(xmesa->xm_buffer, y); + XDITHER_SETUP(yy); + r = xmesa->red; + g = xmesa->green; + b = xmesa->blue; + for (i=0;i<n;i++,x++) { + if (mask[i]) { + XMesaPutPixel( img, x, yy, XDITHER( x, r, g, b ) ); + } + } +} + + +/* + * Write a span of identical 8-bit DITHER pixels to an XImage. The pixel + * value is the one set by DD.color(). + */ +static void write_span_mono_DITHER8_ximage( MONO_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + register GLuint i; + register GLubyte *ptr = PIXELADDR1( xmesa->xm_buffer,x,y); + register GLubyte r, g, b; + XDITHER_SETUP(y); + r = xmesa->red; + g = xmesa->green; + b = xmesa->blue; + for (i=0;i<n;i++,x++) { + if (mask[i]) { + ptr[i] = (GLubyte) XDITHER( x, r, g, b ); + } + } +} + + +/* + * Write a span of identical 8-bit LOOKUP pixels to an XImage. The pixel + * value is the one set by DD.color(). + */ +static void write_span_mono_LOOKUP8_ximage( MONO_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + register GLuint i; + register GLubyte *ptr = PIXELADDR1( xmesa->xm_buffer,x,y); + register GLubyte pixel = (GLubyte) xmesa->pixel; + for (i=0;i<n;i++) { + if (mask[i]) { + ptr[i] = pixel; + } + } +} + + +/* + * Write a span of identical PF_1BIT pixels to an XImage. The pixel + * value is the one set by DD.color(). + */ +static void write_span_mono_1BIT_ximage( MONO_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaImage *img = xmesa->xm_buffer->backimage; + register GLuint i; + register GLubyte r, g, b; + SETUP_1BIT; + r = xmesa->red; + g = xmesa->green; + b = xmesa->blue; + y = FLIP(xmesa->xm_buffer, y); + for (i=0;i<n;i++,x++) { + if (mask[i]) { + XMesaPutPixel( img, x, y, DITHER_1BIT( x, y, r, g, b ) ); + } + } +} + + +/* + * Write a span of identical HPCR pixels to an XImage. The pixel + * value is the one set by DD.color(). + */ +static void write_span_mono_HPCR_ximage( MONO_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + register GLuint i; + register GLubyte *ptr = PIXELADDR1( xmesa->xm_buffer,x,y); + register GLubyte r, g, b; + r = xmesa->red; + g = xmesa->green; + b = xmesa->blue; + for (i=0;i<n;i++,x++) { + if (mask[i]) { + ptr[i] = DITHER_HPCR( x, y, r, g, b ); + } + } +} + + +/* + * Write a span of identical 8-bit GRAYSCALE pixels to an XImage. The pixel + * value is the one set by DD.color(). + */ +static void write_span_mono_GRAYSCALE8_ximage( MONO_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + GLuint i; + GLubyte p = (GLubyte) xmesa->pixel; + GLubyte *ptr = (GLubyte *) PIXELADDR1( xmesa->xm_buffer,x,y); + for (i=0;i<n;i++) { + if (mask[i]) { + ptr[i] = p; + } + } +} + + + +/* + * Write a span of identical PF_DITHER_5R6G5B pixels to an XImage. The pixel + * value is the one set by DD.color(). + */ +static void write_span_mono_DITHER_5R6G5B_ximage( MONO_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + register GLushort *ptr = PIXELADDR2( xmesa->xm_buffer, x, y ); + GLuint i; + GLint r = xmesa->red; + GLint g = xmesa->green; + GLint b = xmesa->blue; + y = FLIP(xmesa->xm_buffer, y); + for (i=0;i<n;i++) { + if (mask[i]) { + PACK_TRUEDITHER(ptr[i], x+i, y, r, g, b); + } + } +} + + + +/**********************************************************************/ +/*** Write MONO COLOR PIXELS functions ***/ +/**********************************************************************/ + +#define MONO_PIXEL_ARGS const GLcontext *ctx, \ + GLuint n, const GLint x[], const GLint y[], \ + const GLubyte mask[] + +/* + * Write an array of identical pixels to a pixmap. The pixel value is + * the one set by DD.color() or DD.index. + */ +static void write_pixels_mono_pixmap( MONO_PIXEL_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc1; + register GLuint i; + for (i=0;i<n;i++) { + if (mask[i]) { + XMesaDrawPoint( dpy, buffer, gc, (int) x[i], (int) FLIP(xmesa->xm_buffer, y[i]) ); + } + } +} + + +/* + * Write an array of PF_TRUEDITHER pixels to a pixmap. The pixel value is + * the one set by DD.color() or DD.index. + */ +static void write_pixels_mono_TRUEDITHER_pixmap( MONO_PIXEL_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc2; + register GLuint i; + register GLubyte r, g, b; + r = xmesa->red; + g = xmesa->green; + b = xmesa->blue; + for (i=0;i<n;i++) { + if (mask[i]) { + unsigned long p; + PACK_TRUEDITHER(p, x[i], y[i], r, g, b); + XMesaSetForeground( dpy, gc, p ); + XMesaDrawPoint( dpy, buffer, gc, (int) x[i], (int) FLIP(xmesa->xm_buffer, y[i]) ); + } + } +} + + +/* + * Write an array of PF_DITHER pixels to a pixmap. The pixel value is + * the one set by DD.color() or DD.index. + */ +static void write_pixels_mono_DITHER_pixmap( MONO_PIXEL_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc2; + register GLuint i; + register GLubyte r, g, b; + DITHER_SETUP; + r = xmesa->red; + g = xmesa->green; + b = xmesa->blue; + for (i=0;i<n;i++) { + if (mask[i]) { + XMesaSetForeground( dpy, gc, DITHER( x[i], y[i], r, g, b ) ); + XMesaDrawPoint( dpy, buffer, gc, (int) x[i], (int) FLIP(xmesa->xm_buffer, y[i]) ); + } + } +} + + +/* + * Write an array of PF_1BIT pixels to a pixmap. The pixel value is + * the one set by DD.color() or DD.index. + */ +static void write_pixels_mono_1BIT_pixmap( MONO_PIXEL_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc2; + register GLuint i; + register GLubyte r, g, b; + SETUP_1BIT; + r = xmesa->red; + g = xmesa->green; + b = xmesa->blue; + for (i=0;i<n;i++) { + if (mask[i]) { + XMesaSetForeground( dpy, gc, DITHER_1BIT( x[i], y[i], r, g, b ) ); + XMesaDrawPoint( dpy, buffer, gc, (int) x[i], (int) FLIP(xmesa->xm_buffer, y[i]) ); + } + } +} + + +/* + * Write an array of identical pixels to an XImage. The pixel value is + * the one set by DD.color() or DD.index. + */ +static void write_pixels_mono_ximage( MONO_PIXEL_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaImage *img = xmesa->xm_buffer->backimage; + register GLuint i; + register unsigned long p = xmesa->pixel; + for (i=0;i<n;i++) { + if (mask[i]) { + XMesaPutPixel( img, x[i], FLIP(xmesa->xm_buffer, y[i]), p ); + } + } +} + + +/* + * Write an array of identical TRUEDITHER pixels to an XImage. + * The pixel value is the one set by DD.color() or DD.index. + */ +static void write_pixels_mono_TRUEDITHER_ximage( MONO_PIXEL_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaImage *img = xmesa->xm_buffer->backimage; + register GLuint i; + int r = xmesa->red; + int g = xmesa->green; + int b = xmesa->blue; + for (i=0;i<n;i++) { + if (mask[i]) { + unsigned long p; + PACK_TRUEDITHER(p, x[i], FLIP(xmesa->xm_buffer, y[i]), r, g, b); + XMesaPutPixel( img, x[i], FLIP(xmesa->xm_buffer, y[i]), p ); + } + } +} + + + +/* + * Write an array of identical 8A8B8G8R pixels to an XImage. The pixel value + * is the one set by DD.color(). + */ +static void write_pixels_mono_8A8B8G8R_ximage( MONO_PIXEL_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + register GLuint i; + register GLuint p = (GLuint) xmesa->pixel; + for (i=0;i<n;i++) { + if (mask[i]) { + GLuint *ptr = PIXELADDR4( xmesa->xm_buffer, x[i], y[i] ); + *ptr = p; + } + } +} + + +/* + * Write an array of identical 8R8G8B pixels to an XImage. The pixel value + * is the one set by DD.color(). + */ +static void write_pixels_mono_8R8G8B_ximage( MONO_PIXEL_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + register GLuint i; + register GLuint p = (GLuint) xmesa->pixel; + for (i=0;i<n;i++) { + if (mask[i]) { + GLuint *ptr = PIXELADDR4( xmesa->xm_buffer, x[i], y[i] ); + *ptr = p; + } + } +} + + +/* + * Write an array of identical 8R8G8B pixels to an XImage. The pixel value + * is the one set by DD.color(). + */ +static void write_pixels_mono_8R8G8B24_ximage( MONO_PIXEL_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + const GLubyte r = (GLubyte) ((xmesa->pixel >> 16) & 0xff); + const GLubyte g = (GLubyte) ((xmesa->pixel >> 8 ) & 0xff); + const GLubyte b = (GLubyte) ((xmesa->pixel ) & 0xff); + register GLuint i; + for (i=0;i<n;i++) { + if (mask[i]) { + bgr_t *ptr = PIXELADDR3( xmesa->xm_buffer, x[i], y[i] ); + ptr->r = r; + ptr->g = g; + ptr->b = b; + } + } +} + + +/* + * Write an array of identical PF_DITHER pixels to an XImage. The pixel + * value is the one set by DD.color(). + */ +static void write_pixels_mono_DITHER_ximage( MONO_PIXEL_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaImage *img = xmesa->xm_buffer->backimage; + register GLuint i; + register GLubyte r, g, b; + DITHER_SETUP; + r = xmesa->red; + g = xmesa->green; + b = xmesa->blue; + for (i=0;i<n;i++) { + if (mask[i]) { + XMesaPutPixel( img, x[i], FLIP(xmesa->xm_buffer, y[i]), DITHER( x[i], y[i], r, g, b ) ); + } + } +} + + +/* + * Write an array of identical 8-bit PF_DITHER pixels to an XImage. The + * pixel value is the one set by DD.color(). + */ +static void write_pixels_mono_DITHER8_ximage( MONO_PIXEL_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + register GLuint i; + register GLubyte r, g, b; + DITHER_SETUP; + r = xmesa->red; + g = xmesa->green; + b = xmesa->blue; + for (i=0;i<n;i++) { + if (mask[i]) { + GLubyte *ptr = PIXELADDR1( xmesa->xm_buffer,x[i],y[i]); + *ptr = (GLubyte) DITHER( x[i], y[i], r, g, b ); + } + } +} + + +/* + * Write an array of identical 8-bit PF_LOOKUP pixels to an XImage. The + * pixel value is the one set by DD.color(). + */ +static void write_pixels_mono_LOOKUP8_ximage( MONO_PIXEL_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + register GLuint i; + register GLubyte pixel = (GLubyte) xmesa->pixel; + for (i=0;i<n;i++) { + if (mask[i]) { + GLubyte *ptr = PIXELADDR1( xmesa->xm_buffer,x[i],y[i]); + *ptr = pixel; + } + } +} + + + +/* + * Write an array of identical PF_1BIT pixels to an XImage. The pixel + * value is the one set by DD.color(). + */ +static void write_pixels_mono_1BIT_ximage( MONO_PIXEL_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaImage *img = xmesa->xm_buffer->backimage; + register GLuint i; + register GLubyte r, g, b; + SETUP_1BIT; + r = xmesa->red; + g = xmesa->green; + b = xmesa->blue; + for (i=0;i<n;i++) { + if (mask[i]) { + XMesaPutPixel( img, x[i], FLIP(xmesa->xm_buffer, y[i]), DITHER_1BIT( x[i], y[i], r, g, b )); + } + } +} + + +/* + * Write an array of identical PF_HPCR pixels to an XImage. The + * pixel value is the one set by DD.color(). + */ +static void write_pixels_mono_HPCR_ximage( MONO_PIXEL_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + register GLuint i; + register GLubyte r, g, b; + r = xmesa->red; + g = xmesa->green; + b = xmesa->blue; + for (i=0;i<n;i++) { + if (mask[i]) { + GLubyte *ptr = PIXELADDR1( xmesa->xm_buffer,x[i],y[i]); + *ptr = DITHER_HPCR( x[i], y[i], r, g, b ); + } + } +} + + +/* + * Write an array of identical 8-bit PF_GRAYSCALE pixels to an XImage. The + * pixel value is the one set by DD.color(). + */ +static void write_pixels_mono_GRAYSCALE8_ximage( MONO_PIXEL_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + register GLuint i; + register GLubyte p = (GLubyte) xmesa->pixel; + for (i=0;i<n;i++) { + if (mask[i]) { + GLubyte *ptr = PIXELADDR1( xmesa->xm_buffer,x[i],y[i]); + *ptr = p; + } + } +} + + +/* + * Write an array of identical PF_DITHER_5R6G5B pixels to an XImage. + * The pixel value is the one set by DD.color() or DD.index. + */ +static void write_pixels_mono_DITHER_5R6G5B_ximage( MONO_PIXEL_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + register GLuint i; + int r = xmesa->red; + int g = xmesa->green; + int b = xmesa->blue; + for (i=0;i<n;i++) { + if (mask[i]) { + GLushort *ptr = PIXELADDR2( xmesa->xm_buffer, x[i], y[i] ); + PACK_TRUEDITHER(*ptr, x[i], y[i], r, g, b); + } + } +} + + + +/**********************************************************************/ +/*** Write INDEX SPAN functions ***/ +/**********************************************************************/ + +#define INDEX_SPAN_ARGS const GLcontext *ctx, \ + GLuint n, GLint x, GLint y, const GLuint index[], \ + const GLubyte mask[] + +#define INDEX8_SPAN_ARGS const GLcontext *ctx, \ + GLuint n, GLint x, GLint y, const GLubyte index[], \ + const GLubyte mask[] + + +/* + * Write a span of CI pixels to a Pixmap. + */ +static void write_span_index_pixmap( INDEX_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc2; + register GLuint i; + y = FLIP(xmesa->xm_buffer, y); + for (i=0;i<n;i++,x++) { + if (mask[i]) { + XMesaSetForeground( dpy, gc, (unsigned long) index[i] ); + XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y ); + } + } +} + + +/* + * Write a span of 8-bit CI pixels to a Pixmap. + */ +static void write_span_index8_pixmap( INDEX8_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc2; + register GLuint i; + y = FLIP(xmesa->xm_buffer, y); + for (i=0;i<n;i++,x++) { + if (mask[i]) { + XMesaSetForeground( dpy, gc, (unsigned long) index[i] ); + XMesaDrawPoint( dpy, buffer, gc, (int) x, (int) y ); + } + } +} + + +/* + * Write a span of CI pixels to an XImage. + */ +static void write_span_index_ximage( INDEX_SPAN_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaImage *img = xmesa->xm_buffer->backimage; + register GLuint i; + y = FLIP(xmesa->xm_buffer, y); + for (i=0;i<n;i++,x++) { + if (mask[i]) { + XMesaPutPixel( img, x, y, (unsigned long) index[i] ); + } + } +} + + +/* + * Write a span of 8-bit CI pixels to a non 8-bit XImage. + */ +static void write_span_index8_ximage( const GLcontext *ctx, GLuint n, + GLint x, GLint y, const GLubyte index[], + const GLubyte mask[] ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + if (mask) { + GLuint i; + for (i=0;i<n;i++) { + if (mask[i]) { + XMesaPutPixel(xmesa->xm_buffer->backimage, x+i, y, index[i]); + } + } + } + else { + GLuint i; + for (i=0;i<n;i++) { + XMesaPutPixel(xmesa->xm_buffer->backimage, x+i, y, index[i]); + } + } +} + +/* + * Write a span of 8-bit CI pixels to an 8-bit XImage. + */ +static void write_span_index8_ximage8( const GLcontext *ctx, GLuint n, + GLint x, GLint y, const GLubyte index[], + const GLubyte mask[] ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + GLubyte *dst = PIXELADDR1( xmesa->xm_buffer,x,y); + if (mask) { + GLuint i; + for (i=0;i<n;i++) { + if (mask[i]) { + dst[i] = index[i]; + } + } + } + else { + MEMCPY( dst, index, n ); + } +} + + + +/**********************************************************************/ +/*** Write INDEX PIXELS functions ***/ +/**********************************************************************/ + +#define INDEX_PIXELS_ARGS const GLcontext *ctx, \ + GLuint n, const GLint x[], const GLint y[], \ + const GLuint index[], const GLubyte mask[] + + +/* + * Write an array of CI pixels to a Pixmap. + */ +static void write_pixels_index_pixmap( INDEX_PIXELS_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + XMesaDrawable buffer = xmesa->xm_buffer->buffer; + XMesaGC gc = xmesa->xm_buffer->gc2; + register GLuint i; + for (i=0;i<n;i++) { + if (mask[i]) { + XMesaSetForeground( dpy, gc, (unsigned long) index[i] ); + XMesaDrawPoint( dpy, buffer, gc, (int) x[i], (int) FLIP(xmesa->xm_buffer, y[i]) ); + } + } +} + + +/* + * Write an array of CI pixels to an XImage. + */ +static void write_pixels_index_ximage( INDEX_PIXELS_ARGS ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaImage *img = xmesa->xm_buffer->backimage; + register GLuint i; + for (i=0;i<n;i++) { + if (mask[i]) { + XMesaPutPixel( img, x[i], FLIP(xmesa->xm_buffer, y[i]), (unsigned long) index[i] ); + } + } +} + + + + +/**********************************************************************/ +/***** Pixel reading *****/ +/**********************************************************************/ + + + +/* + * Read a horizontal span of color-index pixels. + */ +static void read_index_span( const GLcontext *ctx, + GLuint n, GLint x, GLint y, GLuint index[] ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaBuffer source; + GLuint i; + + if (xmesa->use_read_buffer) + source = xmesa->xm_read_buffer; + else + source = xmesa->xm_buffer; + + y = FLIP(source, y); + + if (source->buffer) { +#ifndef XFree86Server + XMesaImage *span = NULL; + int error; + catch_xgetimage_errors( xmesa->display ); + span = XGetImage( xmesa->display, source->buffer, + x, y, n, 1, AllPlanes, ZPixmap ); + error = check_xgetimage_errors(); + if (span && !error) { + for (i=0;i<n;i++) { + index[i] = (GLuint) XMesaGetPixel( span, i, 0 ); + } + } + else { + /* return 0 pixels */ + for (i=0;i<n;i++) { + index[i] = 0; + } + } + if (span) { + XMesaDestroyImage( span ); + } +#else + (*xmesa->display->GetImage)(source->buffer, + x, y, n, 1, ZPixmap, + ~0L, (pointer)index); +#endif + } + else if (source->backimage) { + XMesaImage *img = source->backimage; + for (i=0;i<n;i++,x++) { + index[i] = (GLuint) XMesaGetPixel( img, x, y ); + } + } +} + + + +/* + * Read a horizontal span of color pixels. + */ +static void read_color_span( const GLcontext *ctx, + GLuint n, GLint x, GLint y, + GLubyte rgba[][4] ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaBuffer source; + + if (xmesa->use_read_buffer) + source = xmesa->xm_read_buffer; + else + source = xmesa->xm_buffer; + + if (source->buffer) { + /* Read from Pixmap or Window */ + XMesaImage *span = NULL; + int error; +#ifdef XFree86Server + span = XMesaCreateImage(xmesa->xm_visual->BitsPerPixel, n, 1, NULL); + span->data = (char *)MALLOC(span->height * span->bytes_per_line); + error = (!span->data); + (*xmesa->display->GetImage)(source->buffer, + x, FLIP(source, y), n, 1, ZPixmap, + ~0L, (pointer)span->data); +#else + catch_xgetimage_errors( xmesa->display ); + span = XGetImage( xmesa->display, source->buffer, + x, FLIP(source, y), n, 1, AllPlanes, ZPixmap ); + error = check_xgetimage_errors(); +#endif + if (span && !error) { + switch (xmesa->pixelformat) { + case PF_TRUECOLOR: + case PF_TRUEDITHER: + { + const GLubyte *pixelToR = xmesa->xm_visual->PixelToR; + const GLubyte *pixelToG = xmesa->xm_visual->PixelToG; + const GLubyte *pixelToB = xmesa->xm_visual->PixelToB; + unsigned long rMask = GET_REDMASK(xmesa->xm_visual); + unsigned long gMask = GET_GREENMASK(xmesa->xm_visual); + unsigned long bMask = GET_BLUEMASK(xmesa->xm_visual); + GLint rShift = xmesa->xm_visual->rshift; + GLint gShift = xmesa->xm_visual->gshift; + GLint bShift = xmesa->xm_visual->bshift; + GLuint i; + for (i=0;i<n;i++) { + unsigned long p; + p = XMesaGetPixel( span, i, 0 ); + rgba[i][RCOMP] = pixelToR[(p & rMask) >> rShift]; + rgba[i][GCOMP] = pixelToG[(p & gMask) >> gShift]; + rgba[i][BCOMP] = pixelToB[(p & bMask) >> bShift]; + rgba[i][ACOMP] = 255; + } + } + break; + case PF_5R6G5B: + case PF_DITHER_5R6G5B: + { + const GLubyte *pixelToR = xmesa->xm_visual->PixelToR; + const GLubyte *pixelToG = xmesa->xm_visual->PixelToG; + const GLubyte *pixelToB = xmesa->xm_visual->PixelToB; + GLuint i; + for (i=0;i<n;i++) { + unsigned long p = XMesaGetPixel( span, i, 0 ); + /* fast, but not quite accurate + rgba[i][RCOMP] = ((p >> 8) & 0xf8); + rgba[i][GCOMP] = ((p >> 3) & 0xfc); + rgba[i][BCOMP] = ((p << 3) & 0xff); + */ + rgba[i][RCOMP] = pixelToR[p >> 11]; + rgba[i][GCOMP] = pixelToG[(p >> 5) & 0x3f]; + rgba[i][BCOMP] = pixelToB[p & 0x1f]; + rgba[i][ACOMP] = 255; + } + } + break; + case PF_8A8B8G8R: + { + const GLuint *ptr4 = (GLuint *) span->data; + GLuint i; + for (i=0;i<n;i++) { + GLuint p4 = *ptr4++; + rgba[i][RCOMP] = (GLubyte) ( p4 & 0xff); + rgba[i][GCOMP] = (GLubyte) ((p4 >> 8) & 0xff); + rgba[i][BCOMP] = (GLubyte) ((p4 >> 16) & 0xff); + rgba[i][ACOMP] = (GLubyte) ((p4 >> 24) & 0xff); + } + } + break; + case PF_8R8G8B: + { + const GLuint *ptr4 = (GLuint *) span->data; + GLuint i; + for (i=0;i<n;i++) { + GLuint p4 = *ptr4++; + rgba[i][RCOMP] = (GLubyte) ((p4 >> 16) & 0xff); + rgba[i][GCOMP] = (GLubyte) ((p4 >> 8) & 0xff); + rgba[i][BCOMP] = (GLubyte) ( p4 & 0xff); + rgba[i][ACOMP] = 255; + } + } + break; + case PF_8R8G8B24: + { + const bgr_t *ptr3 = (bgr_t *) span->data; + GLuint i; + for (i=0;i<n;i++) { + rgba[i][RCOMP] = ptr3[i].r; + rgba[i][GCOMP] = ptr3[i].g; + rgba[i][BCOMP] = ptr3[i].b; + rgba[i][ACOMP] = 255; + } + } + break; + case PF_HPCR: + { + GLubyte *ptr1 = (GLubyte *) span->data; + GLuint i; + for (i=0;i<n;i++) { + GLubyte p = *ptr1++; + rgba[i][RCOMP] = p & 0xE0; + rgba[i][GCOMP] = (p & 0x1C) << 3; + rgba[i][BCOMP] = (p & 0x03) << 6; + rgba[i][ACOMP] = 255; + } + } + break; + case PF_DITHER: + case PF_LOOKUP: + case PF_GRAYSCALE: + { + GLubyte *rTable = source->pixel_to_r; + GLubyte *gTable = source->pixel_to_g; + GLubyte *bTable = source->pixel_to_b; + if (GET_VISUAL_DEPTH(xmesa->xm_visual)==8) { + const GLubyte *ptr1 = (GLubyte *) span->data; + GLuint i; + for (i=0;i<n;i++) { + unsigned long p = *ptr1++; + rgba[i][RCOMP] = rTable[p]; + rgba[i][GCOMP] = gTable[p]; + rgba[i][BCOMP] = bTable[p]; + rgba[i][ACOMP] = 255; + } + } + else { + GLuint i; + for (i=0;i<n;i++) { + unsigned long p = XMesaGetPixel( span, i, 0 ); + rgba[i][RCOMP] = rTable[p]; + rgba[i][GCOMP] = gTable[p]; + rgba[i][BCOMP] = bTable[p]; + rgba[i][ACOMP] = 255; + } + } + } + break; + case PF_1BIT: + { + int bitFlip = xmesa->xm_visual->bitFlip; + GLuint i; + for (i=0;i<n;i++) { + unsigned long p; + p = XMesaGetPixel( span, i, 0 ) ^ bitFlip; + rgba[i][RCOMP] = (GLubyte) (p * 255); + rgba[i][GCOMP] = (GLubyte) (p * 255); + rgba[i][BCOMP] = (GLubyte) (p * 255); + rgba[i][ACOMP] = 255; + } + } + break; + default: + gl_problem(NULL,"Problem in DD.read_color_span (1)"); + return; + } + } + else { + /* return black pixels */ + GLuint i; + for (i=0;i<n;i++) { + rgba[i][RCOMP] = rgba[i][GCOMP] = rgba[i][BCOMP] = rgba[i][ACOMP] = 0; + } + } + if (span) { + XMesaDestroyImage( span ); + } + } + else if (source->backimage) { + /* Read from XImage back buffer */ + switch (xmesa->pixelformat) { + case PF_TRUECOLOR: + case PF_TRUEDITHER: + { + const GLubyte *pixelToR = xmesa->xm_visual->PixelToR; + const GLubyte *pixelToG = xmesa->xm_visual->PixelToG; + const GLubyte *pixelToB = xmesa->xm_visual->PixelToB; + unsigned long rMask = GET_REDMASK(xmesa->xm_visual); + unsigned long gMask = GET_GREENMASK(xmesa->xm_visual); + unsigned long bMask = GET_BLUEMASK(xmesa->xm_visual); + GLint rShift = xmesa->xm_visual->rshift; + GLint gShift = xmesa->xm_visual->gshift; + GLint bShift = xmesa->xm_visual->bshift; + XMesaImage *img = source->backimage; + GLuint i; + y = FLIP(source, y); + for (i=0;i<n;i++) { + unsigned long p; + p = XMesaGetPixel( img, x+i, y ); + rgba[i][RCOMP] = pixelToR[(p & rMask) >> rShift]; + rgba[i][GCOMP] = pixelToG[(p & gMask) >> gShift]; + rgba[i][BCOMP] = pixelToB[(p & bMask) >> bShift]; + rgba[i][ACOMP] = 255; + } + } + break; + case PF_5R6G5B: + case PF_DITHER_5R6G5B: + { + const GLubyte *pixelToR = xmesa->xm_visual->PixelToR; + const GLubyte *pixelToG = xmesa->xm_visual->PixelToG; + const GLubyte *pixelToB = xmesa->xm_visual->PixelToB; + const GLushort *ptr2 = PIXELADDR2( source, x, y ); + const GLuint *ptr4 = (const GLuint *) ptr2; + GLuint i; +#if defined(__i386__) /* word stores don't have to be on 4-byte boundaries */ + GLuint extraPixel = (n & 1); + n -= extraPixel; + for (i = 0; i < n; i += 2) { + const GLuint p = *ptr4++; + const GLuint p0 = p & 0xffff; + const GLuint p1 = p >> 16; + /* fast, but not quite accurate + rgba[i][RCOMP] = ((p >> 8) & 0xf8); + rgba[i][GCOMP] = ((p >> 3) & 0xfc); + rgba[i][BCOMP] = ((p << 3) & 0xff); + */ + rgba[i][RCOMP] = pixelToR[p0 >> 11]; + rgba[i][GCOMP] = pixelToG[(p0 >> 5) & 0x3f]; + rgba[i][BCOMP] = pixelToB[p0 & 0x1f]; + rgba[i][ACOMP] = 255; + rgba[i+1][RCOMP] = pixelToR[p1 >> 11]; + rgba[i+1][GCOMP] = pixelToG[(p1 >> 5) & 0x3f]; + rgba[i+1][BCOMP] = pixelToB[p1 & 0x1f]; + rgba[i+1][ACOMP] = 255; + } + if (extraPixel) { + GLushort p = ptr2[n]; + rgba[n][RCOMP] = pixelToR[p >> 11]; + rgba[n][GCOMP] = pixelToG[(p >> 5) & 0x3f]; + rgba[n][BCOMP] = pixelToB[p & 0x1f]; + rgba[n][ACOMP] = 255; + } +#else + for (i = 0; i < n; i++) { + const GLushort p = ptr2[i]; + rgba[i][RCOMP] = pixelToR[p >> 11]; + rgba[i][GCOMP] = pixelToG[(p >> 5) & 0x3f]; + rgba[i][BCOMP] = pixelToB[p & 0x1f]; + rgba[i][ACOMP] = 255; + } +#endif + } + break; + case PF_8A8B8G8R: + { + const GLuint *ptr4 = PIXELADDR4( source, x, y ); + GLuint i; + for (i=0;i<n;i++) { + GLuint p4 = *ptr4++; + rgba[i][RCOMP] = (GLubyte) ( p4 & 0xff); + rgba[i][GCOMP] = (GLubyte) ((p4 >> 8) & 0xff); + rgba[i][BCOMP] = (GLubyte) ((p4 >> 16) & 0xff); + rgba[i][ACOMP] = (GLint) ((p4 >> 24) & 0xff); + } + } + break; + case PF_8R8G8B: + { + const GLuint *ptr4 = PIXELADDR4( source, x, y ); + GLuint i; + for (i=0;i<n;i++) { + GLuint p4 = *ptr4++; + rgba[i][RCOMP] = (GLubyte) ((p4 >> 16) & 0xff); + rgba[i][GCOMP] = (GLubyte) ((p4 >> 8) & 0xff); + rgba[i][BCOMP] = (GLubyte) ( p4 & 0xff); + rgba[i][ACOMP] = 255; + } + } + break; + case PF_8R8G8B24: + { + const bgr_t *ptr3 = PIXELADDR3( source, x, y ); + GLuint i; + for (i=0;i<n;i++) { + rgba[i][RCOMP] = ptr3[i].r; + rgba[i][GCOMP] = ptr3[i].g; + rgba[i][BCOMP] = ptr3[i].b; + rgba[i][ACOMP] = 255; + } + } + break; + case PF_HPCR: + { + const GLubyte *ptr1 = PIXELADDR1( source, x, y ); + GLuint i; + for (i=0;i<n;i++) { + GLubyte p = *ptr1++; + rgba[i][RCOMP] = p & 0xE0; + rgba[i][GCOMP] = (p & 0x1C) << 3; + rgba[i][BCOMP] = (p & 0x03) << 6; + rgba[i][ACOMP] = 255; + } + } + break; + case PF_DITHER: + case PF_LOOKUP: + case PF_GRAYSCALE: + { + const GLubyte *rTable = source->pixel_to_r; + const GLubyte *gTable = source->pixel_to_g; + const GLubyte *bTable = source->pixel_to_b; + if (GET_VISUAL_DEPTH(xmesa->xm_visual)==8) { + GLubyte *ptr1 = PIXELADDR1( source, x, y ); + GLuint i; + for (i=0;i<n;i++) { + unsigned long p = *ptr1++; + rgba[i][RCOMP] = rTable[p]; + rgba[i][GCOMP] = gTable[p]; + rgba[i][BCOMP] = bTable[p]; + rgba[i][ACOMP] = 255; + } + } + else { + XMesaImage *img = source->backimage; + GLuint i; + y = FLIP(source, y); + for (i=0;i<n;i++,x++) { + unsigned long p = XMesaGetPixel( img, x, y ); + rgba[i][RCOMP] = rTable[p]; + rgba[i][GCOMP] = gTable[p]; + rgba[i][BCOMP] = bTable[p]; + rgba[i][ACOMP] = 255; + } + } + } + break; + case PF_1BIT: + { + XMesaImage *img = source->backimage; + int bitFlip = xmesa->xm_visual->bitFlip; + GLuint i; + y = FLIP(source, y); + for (i=0;i<n;i++,x++) { + unsigned long p; + p = XMesaGetPixel( img, x, y ) ^ bitFlip; + rgba[i][RCOMP] = (GLubyte) (p * 255); + rgba[i][GCOMP] = (GLubyte) (p * 255); + rgba[i][BCOMP] = (GLubyte) (p * 255); + rgba[i][ACOMP] = 255; + } + } + break; + default: + gl_problem(NULL,"Problem in DD.read_color_span (2)"); + return; + } + } +} + + + +/* + * Read an array of color index pixels. + */ +static void read_index_pixels( const GLcontext *ctx, + GLuint n, const GLint x[], const GLint y[], + GLuint indx[], const GLubyte mask[] ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + register GLuint i; + XMesaBuffer source; + + if (xmesa->use_read_buffer) + source = xmesa->xm_read_buffer; + else + source = xmesa->xm_buffer; + + if (source->buffer) { + for (i=0;i<n;i++) { + if (mask[i]) { + indx[i] = (GLuint) read_pixel( xmesa->display, + source->buffer, + x[i], FLIP(source, y[i]) ); + } + } + } + else if (source->backimage) { + XMesaImage *img = source->backimage; + for (i=0;i<n;i++) { + if (mask[i]) { + indx[i] = (GLuint) XMesaGetPixel( img, x[i], FLIP(source, y[i]) ); + } + } + } +} + + + +static void read_color_pixels( const GLcontext *ctx, + GLuint n, const GLint x[], const GLint y[], + GLubyte rgba[][4], const GLubyte mask[] ) +{ + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaDisplay *dpy = xmesa->xm_visual->display; + register GLuint i; + XMesaBuffer source; + XMesaDrawable buffer; + + if (xmesa->use_read_buffer) + source = xmesa->xm_read_buffer; + else + source = xmesa->xm_buffer; + + buffer = source->buffer; /* the X drawable */ + + if (source->buffer) { + switch (xmesa->pixelformat) { + case PF_TRUECOLOR: + case PF_TRUEDITHER: + case PF_5R6G5B: + case PF_DITHER_5R6G5B: + { + unsigned long rMask = GET_REDMASK(xmesa->xm_visual); + unsigned long gMask = GET_GREENMASK(xmesa->xm_visual); + unsigned long bMask = GET_BLUEMASK(xmesa->xm_visual); + GLubyte *pixelToR = xmesa->xm_visual->PixelToR; + GLubyte *pixelToG = xmesa->xm_visual->PixelToG; + GLubyte *pixelToB = xmesa->xm_visual->PixelToB; + GLint rShift = xmesa->xm_visual->rshift; + GLint gShift = xmesa->xm_visual->gshift; + GLint bShift = xmesa->xm_visual->bshift; + for (i=0;i<n;i++) { + if (mask[i]) { + unsigned long p = read_pixel( dpy, buffer, + x[i], FLIP(source, y[i]) ); + rgba[i][RCOMP] = pixelToR[(p & rMask) >> rShift]; + rgba[i][GCOMP] = pixelToG[(p & gMask) >> gShift]; + rgba[i][BCOMP] = pixelToB[(p & bMask) >> bShift]; + rgba[i][ACOMP] = 255; + } + } + } + break; + case PF_8A8B8G8R: + for (i=0;i<n;i++) { + if (mask[i]) { + unsigned long p = read_pixel( dpy, buffer, + x[i], FLIP(source, y[i]) ); + rgba[i][RCOMP] = (GLubyte) ( p & 0xff); + rgba[i][GCOMP] = (GLubyte) ((p >> 8) & 0xff); + rgba[i][BCOMP] = (GLubyte) ((p >> 16) & 0xff); + rgba[i][ACOMP] = (GLubyte) ((p >> 24) & 0xff); + } + } + break; + case PF_8R8G8B: + for (i=0;i<n;i++) { + if (mask[i]) { + unsigned long p = read_pixel( dpy, buffer, + x[i], FLIP(source, y[i]) ); + rgba[i][RCOMP] = (GLubyte) ((p >> 16) & 0xff); + rgba[i][GCOMP] = (GLubyte) ((p >> 8) & 0xff); + rgba[i][BCOMP] = (GLubyte) ( p & 0xff); + rgba[i][ACOMP] = 255; + } + } + break; + case PF_8R8G8B24: + for (i=0;i<n;i++) { + if (mask[i]) { + unsigned long p = read_pixel( dpy, buffer, + x[i], FLIP(source, y[i]) ); + rgba[i][RCOMP] = (GLubyte) ((p >> 16) & 0xff); + rgba[i][GCOMP] = (GLubyte) ((p >> 8) & 0xff); + rgba[i][BCOMP] = (GLubyte) ( p & 0xff); + rgba[i][ACOMP] = 255; + } + } + break; + case PF_HPCR: + { + for (i=0;i<n;i++) { + if (mask[i]) { + unsigned long p = read_pixel( dpy, buffer, + x[i], FLIP(source, y[i]) ); + rgba[i][RCOMP] = (GLubyte) ( p & 0xE0 ); + rgba[i][GCOMP] = (GLubyte) ((p & 0x1C) << 3); + rgba[i][BCOMP] = (GLubyte) ((p & 0x03) << 6); + rgba[i][ACOMP] = (GLubyte) 255; + } + } + } + break; + case PF_DITHER: + case PF_LOOKUP: + case PF_GRAYSCALE: + { + GLubyte *rTable = source->pixel_to_r; + GLubyte *gTable = source->pixel_to_g; + GLubyte *bTable = source->pixel_to_b; + for (i=0;i<n;i++) { + if (mask[i]) { + unsigned long p = read_pixel( dpy, buffer, + x[i], FLIP(source, y[i]) ); + rgba[i][RCOMP] = rTable[p]; + rgba[i][GCOMP] = gTable[p]; + rgba[i][BCOMP] = bTable[p]; + rgba[i][ACOMP] = 255; + } + } + } + break; + case PF_1BIT: + { + int bitFlip = xmesa->xm_visual->bitFlip; + for (i=0;i<n;i++) { + if (mask[i]) { + unsigned long p = read_pixel( dpy, buffer, + x[i], FLIP(source, y[i])) ^ bitFlip; + rgba[i][RCOMP] = (GLubyte) (p * 255); + rgba[i][GCOMP] = (GLubyte) (p * 255); + rgba[i][BCOMP] = (GLubyte) (p * 255); + rgba[i][ACOMP] = 255; + } + } + } + break; + default: + gl_problem(NULL,"Problem in DD.read_color_pixels (1)"); + return; + } + } + else if (source->backimage) { + switch (xmesa->pixelformat) { + case PF_TRUECOLOR: + case PF_TRUEDITHER: + case PF_5R6G5B: + case PF_DITHER_5R6G5B: + { + unsigned long rMask = GET_REDMASK(xmesa->xm_visual); + unsigned long gMask = GET_GREENMASK(xmesa->xm_visual); + unsigned long bMask = GET_BLUEMASK(xmesa->xm_visual); + GLubyte *pixelToR = xmesa->xm_visual->PixelToR; + GLubyte *pixelToG = xmesa->xm_visual->PixelToG; + GLubyte *pixelToB = xmesa->xm_visual->PixelToB; + GLint rShift = xmesa->xm_visual->rshift; + GLint gShift = xmesa->xm_visual->gshift; + GLint bShift = xmesa->xm_visual->bshift; + XMesaImage *img = source->backimage; + for (i=0;i<n;i++) { + if (mask[i]) { + unsigned long p; + p = XMesaGetPixel( img, x[i], FLIP(source, y[i]) ); + rgba[i][RCOMP] = pixelToR[(p & rMask) >> rShift]; + rgba[i][GCOMP] = pixelToG[(p & gMask) >> gShift]; + rgba[i][BCOMP] = pixelToB[(p & bMask) >> bShift]; + rgba[i][ACOMP] = 255; + } + } + } + break; + case PF_8A8B8G8R: + for (i=0;i<n;i++) { + if (mask[i]) { + GLuint *ptr4 = PIXELADDR4( source, x[i], y[i] ); + GLuint p4 = *ptr4; + rgba[i][RCOMP] = (GLubyte) ( p4 & 0xff); + rgba[i][GCOMP] = (GLubyte) ((p4 >> 8) & 0xff); + rgba[i][BCOMP] = (GLubyte) ((p4 >> 16) & 0xff); + rgba[i][ACOMP] = (GLubyte) ((p4 >> 24) & 0xff); + } + } + break; + case PF_8R8G8B: + for (i=0;i<n;i++) { + if (mask[i]) { + GLuint *ptr4 = PIXELADDR4( source, x[i], y[i] ); + GLuint p4 = *ptr4; + rgba[i][RCOMP] = (GLubyte) ((p4 >> 16) & 0xff); + rgba[i][GCOMP] = (GLubyte) ((p4 >> 8) & 0xff); + rgba[i][BCOMP] = (GLubyte) ( p4 & 0xff); + rgba[i][ACOMP] = 255; + } + } + break; + case PF_8R8G8B24: + for (i=0;i<n;i++) { + if (mask[i]) { + bgr_t *ptr3 = PIXELADDR3( source, x[i], y[i] ); + rgba[i][RCOMP] = ptr3->r; + rgba[i][GCOMP] = ptr3->g; + rgba[i][BCOMP] = ptr3->b; + rgba[i][ACOMP] = 255; + } + } + break; + case PF_HPCR: + for (i=0;i<n;i++) { + if (mask[i]) { + GLubyte *ptr1 = PIXELADDR1( source, x[i], y[i] ); + GLubyte p = *ptr1; + rgba[i][RCOMP] = p & 0xE0; + rgba[i][GCOMP] = (p & 0x1C) << 3; + rgba[i][BCOMP] = (p & 0x03) << 6; + rgba[i][ACOMP] = 255; + } + } + break; + case PF_DITHER: + case PF_LOOKUP: + case PF_GRAYSCALE: + { + GLubyte *rTable = source->pixel_to_r; + GLubyte *gTable = source->pixel_to_g; + GLubyte *bTable = source->pixel_to_b; + XMesaImage *img = source->backimage; + for (i=0;i<n;i++) { + if (mask[i]) { + unsigned long p; + p = XMesaGetPixel( img, x[i], FLIP(source, y[i]) ); + rgba[i][RCOMP] = rTable[p]; + rgba[i][GCOMP] = gTable[p]; + rgba[i][BCOMP] = bTable[p]; + rgba[i][ACOMP] = 255; + } + } + } + break; + case PF_1BIT: + { + XMesaImage *img = source->backimage; + int bitFlip = xmesa->xm_visual->bitFlip; + for (i=0;i<n;i++) { + if (mask[i]) { + unsigned long p; + p = XMesaGetPixel( img, x[i], FLIP(source, y[i]) ) ^ bitFlip; + rgba[i][RCOMP] = (GLubyte) (p * 255); + rgba[i][GCOMP] = (GLubyte) (p * 255); + rgba[i][BCOMP] = (GLubyte) (p * 255); + rgba[i][ACOMP] = 255; + } + } + } + break; + default: + gl_problem(NULL,"Problem in DD.read_color_pixels (1)"); + return; + } + } +} + + +static void +clear_color_HPCR_ximage( GLcontext *ctx, + GLubyte r, GLubyte g, GLubyte b, GLubyte a ) +{ + int i; + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + xmesa->clearcolor[0] = r; + xmesa->clearcolor[1] = g; + xmesa->clearcolor[2] = b; + xmesa->clearcolor[3] = a; + + if (r == 0 && g == 0 && b == 0) { + /* black is black */ + MEMSET( xmesa->xm_visual->hpcr_clear_ximage_pattern, 0x0 , + sizeof(xmesa->xm_visual->hpcr_clear_ximage_pattern)); + } + else { + /* build clear pattern */ + for (i=0; i<16; i++) { + xmesa->xm_visual->hpcr_clear_ximage_pattern[0][i] = + DITHER_HPCR(i, 0, r, g, b); + xmesa->xm_visual->hpcr_clear_ximage_pattern[1][i] = + DITHER_HPCR(i, 1, r, g, b); + } + } +} + + +static void +clear_color_HPCR_pixmap( GLcontext *ctx, + GLubyte r, GLubyte g, GLubyte b, GLubyte a ) +{ + int i; + const XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + xmesa->clearcolor[0] = r; + xmesa->clearcolor[1] = g; + xmesa->clearcolor[2] = b; + xmesa->clearcolor[3] = a; + + + if (0x0==r && 0x0==g && 0x0==b) { + /* black is black */ + for (i=0; i<16; i++) { + XMesaPutPixel(xmesa->xm_visual->hpcr_clear_ximage, i, 0, 0); + XMesaPutPixel(xmesa->xm_visual->hpcr_clear_ximage, i, 1, 0); + } + } + else { + for (i=0; i<16; i++) { + XMesaPutPixel(xmesa->xm_visual->hpcr_clear_ximage, i, 0, DITHER_HPCR(i, 0, r, g, b)); + XMesaPutPixel(xmesa->xm_visual->hpcr_clear_ximage, i, 1, DITHER_HPCR(i, 1, r, g, b)); + } + } + /* change tile pixmap content */ + XMesaPutImage(xmesa->display, + (XMesaDrawable)xmesa->xm_visual->hpcr_clear_pixmap, + xmesa->xm_buffer->cleargc, + xmesa->xm_visual->hpcr_clear_ximage, 0, 0, 0, 0, 16, 2); +} + + + +void xmesa_update_span_funcs( GLcontext *ctx ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + int depth=GET_VISUAL_DEPTH(xmesa->xm_visual); + + /* + * These drawing functions depend on color buffer config: + */ + if (xmesa->xm_buffer->buffer!=XIMAGE) { + /* Writing to window or back pixmap */ + switch (xmesa->pixelformat) { + case PF_INDEX: + ctx->Driver.WriteCI32Span = write_span_index_pixmap; + ctx->Driver.WriteCI8Span = write_span_index8_pixmap; + ctx->Driver.WriteMonoCISpan = write_span_mono_pixmap; + ctx->Driver.WriteCI32Pixels = write_pixels_index_pixmap; + ctx->Driver.WriteMonoCIPixels = write_pixels_mono_pixmap; + break; + case PF_TRUECOLOR: + ctx->Driver.WriteRGBASpan = write_span_TRUECOLOR_pixmap; + ctx->Driver.WriteRGBSpan = write_span_rgb_TRUECOLOR_pixmap; + ctx->Driver.WriteMonoRGBASpan = write_span_mono_pixmap; + ctx->Driver.WriteRGBAPixels = write_pixels_TRUECOLOR_pixmap; + ctx->Driver.WriteMonoRGBAPixels = write_pixels_mono_pixmap; + break; + case PF_TRUEDITHER: + ctx->Driver.WriteRGBASpan = write_span_TRUEDITHER_pixmap; + ctx->Driver.WriteRGBSpan = write_span_rgb_TRUEDITHER_pixmap; + ctx->Driver.WriteMonoRGBASpan = write_span_mono_TRUEDITHER_pixmap; + ctx->Driver.WriteRGBAPixels = write_pixels_TRUEDITHER_pixmap; + ctx->Driver.WriteMonoRGBAPixels = write_pixels_mono_TRUEDITHER_pixmap; + break; + case PF_8A8B8G8R: + ctx->Driver.WriteRGBASpan = write_span_8A8B8G8R_pixmap; + ctx->Driver.WriteRGBSpan = write_span_rgb_8A8B8G8R_pixmap; + ctx->Driver.WriteMonoRGBASpan = write_span_mono_pixmap; + ctx->Driver.WriteRGBAPixels = write_pixels_8A8B8G8R_pixmap; + ctx->Driver.WriteMonoRGBAPixels = write_pixels_mono_pixmap; + break; + case PF_8R8G8B: + ctx->Driver.WriteRGBASpan = write_span_8R8G8B_pixmap; + ctx->Driver.WriteRGBSpan = write_span_rgb_8R8G8B_pixmap; + ctx->Driver.WriteMonoRGBASpan = write_span_mono_pixmap; + ctx->Driver.WriteRGBAPixels = write_pixels_8R8G8B_pixmap; + ctx->Driver.WriteMonoRGBAPixels = write_pixels_mono_pixmap; + ctx->Driver.DrawPixels = NULL; /*drawpixels_8R8G8B;*/ + break; + case PF_8R8G8B24: + ctx->Driver.WriteRGBASpan = write_span_8R8G8B24_pixmap; + ctx->Driver.WriteRGBSpan = write_span_rgb_8R8G8B24_pixmap; + ctx->Driver.WriteMonoRGBASpan = write_span_mono_pixmap; + ctx->Driver.WriteRGBAPixels = write_pixels_8R8G8B24_pixmap; + ctx->Driver.WriteMonoRGBAPixels = write_pixels_mono_pixmap; + break; + case PF_5R6G5B: + ctx->Driver.WriteRGBASpan = write_span_5R6G5B_pixmap; + ctx->Driver.WriteRGBSpan = write_span_rgb_5R6G5B_pixmap; + ctx->Driver.WriteMonoRGBASpan = write_span_mono_pixmap; + ctx->Driver.WriteRGBAPixels = write_pixels_5R6G5B_pixmap; + ctx->Driver.WriteMonoRGBAPixels = write_pixels_mono_pixmap; + break; + case PF_DITHER_5R6G5B: + ctx->Driver.WriteRGBASpan = write_span_DITHER_5R6G5B_pixmap; + ctx->Driver.WriteRGBSpan = write_span_rgb_DITHER_5R6G5B_pixmap; + ctx->Driver.WriteMonoRGBASpan = write_span_mono_TRUEDITHER_pixmap; + ctx->Driver.WriteRGBAPixels = write_pixels_DITHER_5R6G5B_pixmap; + ctx->Driver.WriteMonoRGBAPixels = write_pixels_mono_TRUEDITHER_pixmap; + break; + case PF_DITHER: + ctx->Driver.WriteRGBASpan = write_span_DITHER_pixmap; + ctx->Driver.WriteRGBSpan = write_span_rgb_DITHER_pixmap; + ctx->Driver.WriteMonoRGBASpan = write_span_mono_DITHER_pixmap; + ctx->Driver.WriteRGBAPixels = write_pixels_DITHER_pixmap; + ctx->Driver.WriteMonoRGBAPixels = write_pixels_mono_DITHER_pixmap; + break; + case PF_1BIT: + ctx->Driver.WriteRGBASpan = write_span_1BIT_pixmap; + ctx->Driver.WriteRGBSpan = write_span_rgb_1BIT_pixmap; + ctx->Driver.WriteMonoRGBASpan = write_span_mono_1BIT_pixmap; + ctx->Driver.WriteRGBAPixels = write_pixels_1BIT_pixmap; + ctx->Driver.WriteMonoRGBAPixels = write_pixels_mono_1BIT_pixmap; + break; + case PF_HPCR: + ctx->Driver.WriteRGBASpan = write_span_HPCR_pixmap; + ctx->Driver.WriteRGBSpan = write_span_rgb_HPCR_pixmap; + ctx->Driver.WriteMonoRGBASpan = write_span_mono_pixmap; + ctx->Driver.WriteRGBAPixels = write_pixels_HPCR_pixmap; + ctx->Driver.WriteMonoRGBAPixels = write_pixels_mono_pixmap; + if (xmesa->xm_visual->hpcr_clear_flag) { + ctx->Driver.ClearColor = clear_color_HPCR_pixmap; + } + break; + case PF_LOOKUP: + ctx->Driver.WriteRGBASpan = write_span_LOOKUP_pixmap; + ctx->Driver.WriteRGBSpan = write_span_rgb_LOOKUP_pixmap; + ctx->Driver.WriteMonoRGBASpan = write_span_mono_pixmap; + ctx->Driver.WriteRGBAPixels = write_pixels_LOOKUP_pixmap; + ctx->Driver.WriteMonoRGBAPixels = write_pixels_mono_pixmap; + break; + case PF_GRAYSCALE: + ctx->Driver.WriteRGBASpan = write_span_GRAYSCALE_pixmap; + ctx->Driver.WriteRGBSpan = write_span_rgb_GRAYSCALE_pixmap; + ctx->Driver.WriteMonoRGBASpan = write_span_mono_pixmap; + ctx->Driver.WriteRGBAPixels = write_pixels_GRAYSCALE_pixmap; + ctx->Driver.WriteMonoRGBAPixels = write_pixels_mono_pixmap; + break; + default: + gl_problem(NULL,"Bad pixel format in xmesa_update_state (1)"); + return; + } + } + else if (xmesa->xm_buffer->buffer==XIMAGE) { + /* Writing to back XImage */ + switch (xmesa->pixelformat) { + case PF_INDEX: + ctx->Driver.WriteCI32Span = write_span_index_ximage; + if (depth==8) + ctx->Driver.WriteCI8Span = write_span_index8_ximage8; + else + ctx->Driver.WriteCI8Span = write_span_index8_ximage; + ctx->Driver.WriteMonoCISpan = write_span_mono_ximage; + ctx->Driver.WriteCI32Pixels = write_pixels_index_ximage; + ctx->Driver.WriteMonoCIPixels = write_pixels_mono_ximage; + break; + case PF_TRUECOLOR: + /* Generic RGB */ + ctx->Driver.WriteRGBASpan = write_span_TRUECOLOR_ximage; + ctx->Driver.WriteRGBSpan = write_span_rgb_TRUECOLOR_ximage; + ctx->Driver.WriteMonoRGBASpan = write_span_mono_ximage; + ctx->Driver.WriteRGBAPixels = write_pixels_TRUECOLOR_ximage; + ctx->Driver.WriteMonoRGBAPixels = write_pixels_mono_ximage; + break; + case PF_TRUEDITHER: + ctx->Driver.WriteRGBASpan = write_span_TRUEDITHER_ximage; + ctx->Driver.WriteRGBSpan = write_span_rgb_TRUEDITHER_ximage; + ctx->Driver.WriteMonoRGBASpan = write_span_mono_TRUEDITHER_ximage; + ctx->Driver.WriteRGBAPixels = write_pixels_TRUEDITHER_ximage; + ctx->Driver.WriteMonoRGBAPixels = write_pixels_mono_TRUEDITHER_ximage; + break; + case PF_8A8B8G8R: + ctx->Driver.WriteRGBASpan = write_span_8A8B8G8R_ximage; + ctx->Driver.WriteRGBSpan = write_span_rgb_8A8B8G8R_ximage; + ctx->Driver.WriteMonoRGBASpan = write_span_mono_8A8B8G8R_ximage; + ctx->Driver.WriteRGBAPixels = write_pixels_8A8B8G8R_ximage; + ctx->Driver.WriteMonoRGBAPixels = write_pixels_mono_8A8B8G8R_ximage; + break; + case PF_8R8G8B: + ctx->Driver.WriteRGBASpan = write_span_8R8G8B_ximage; + ctx->Driver.WriteRGBSpan = write_span_rgb_8R8G8B_ximage; + ctx->Driver.WriteMonoRGBASpan = write_span_mono_8R8G8B_ximage; + ctx->Driver.WriteRGBAPixels = write_pixels_8R8G8B_ximage; + ctx->Driver.WriteMonoRGBAPixels = write_pixels_mono_8R8G8B_ximage; + ctx->Driver.DrawPixels = NULL; + break; + case PF_8R8G8B24: + ctx->Driver.WriteRGBASpan = write_span_8R8G8B24_ximage; + ctx->Driver.WriteRGBSpan = write_span_rgb_8R8G8B24_ximage; + ctx->Driver.WriteMonoRGBASpan = write_span_mono_8R8G8B24_ximage; + ctx->Driver.WriteRGBAPixels = write_pixels_8R8G8B24_ximage; + ctx->Driver.WriteMonoRGBAPixels = write_pixels_mono_8R8G8B24_ximage; + break; + case PF_5R6G5B: + ctx->Driver.WriteRGBASpan = write_span_5R6G5B_ximage; + ctx->Driver.WriteRGBSpan = write_span_rgb_5R6G5B_ximage; + ctx->Driver.WriteMonoRGBASpan = write_span_mono_ximage; + ctx->Driver.WriteRGBAPixels = write_pixels_5R6G5B_ximage; + ctx->Driver.WriteMonoRGBAPixels = write_pixels_mono_ximage; + break; + case PF_DITHER_5R6G5B: + ctx->Driver.WriteRGBASpan = write_span_DITHER_5R6G5B_ximage; + ctx->Driver.WriteRGBSpan = write_span_rgb_DITHER_5R6G5B_ximage; + ctx->Driver.WriteMonoRGBASpan = write_span_mono_DITHER_5R6G5B_ximage; + ctx->Driver.WriteRGBAPixels = write_pixels_DITHER_5R6G5B_ximage; + ctx->Driver.WriteMonoRGBAPixels = write_pixels_mono_DITHER_5R6G5B_ximage; + break; + case PF_DITHER: + if (depth==8) { + ctx->Driver.WriteRGBASpan = write_span_DITHER8_ximage; + ctx->Driver.WriteRGBSpan = write_span_rgb_DITHER8_ximage; + ctx->Driver.WriteMonoRGBASpan = write_span_mono_DITHER8_ximage; + ctx->Driver.WriteRGBAPixels = write_pixels_DITHER8_ximage; + ctx->Driver.WriteMonoRGBAPixels = write_pixels_mono_DITHER8_ximage; + } + else { + ctx->Driver.WriteRGBASpan = write_span_DITHER_ximage; + ctx->Driver.WriteRGBSpan = write_span_rgb_DITHER_ximage; + ctx->Driver.WriteMonoRGBASpan = write_span_mono_DITHER_ximage; + ctx->Driver.WriteRGBAPixels = write_pixels_DITHER_ximage; + ctx->Driver.WriteMonoRGBAPixels = write_pixels_mono_DITHER_ximage; + } + break; + case PF_1BIT: + ctx->Driver.WriteRGBASpan = write_span_1BIT_ximage; + ctx->Driver.WriteRGBSpan = write_span_rgb_1BIT_ximage; + ctx->Driver.WriteMonoRGBASpan = write_span_mono_1BIT_ximage; + ctx->Driver.WriteRGBAPixels = write_pixels_1BIT_ximage; + ctx->Driver.WriteMonoRGBAPixels = write_pixels_mono_1BIT_ximage; + break; + case PF_HPCR: + ctx->Driver.WriteRGBASpan = write_span_HPCR_ximage; + ctx->Driver.WriteRGBSpan = write_span_rgb_HPCR_ximage; + ctx->Driver.WriteMonoRGBASpan = write_span_mono_HPCR_ximage; + ctx->Driver.WriteRGBAPixels = write_pixels_HPCR_ximage; + ctx->Driver.WriteMonoRGBAPixels = write_pixels_mono_HPCR_ximage; + if (xmesa->xm_visual->hpcr_clear_flag) { + ctx->Driver.ClearColor = clear_color_HPCR_ximage; + } + break; + case PF_LOOKUP: + if (depth==8) { + ctx->Driver.WriteRGBASpan = write_span_LOOKUP8_ximage; + ctx->Driver.WriteRGBSpan = write_rgb_LOOKUP8_ximage; + ctx->Driver.WriteMonoRGBASpan = write_span_mono_LOOKUP8_ximage; + ctx->Driver.WriteRGBAPixels = write_pixels_LOOKUP8_ximage; + ctx->Driver.WriteMonoRGBAPixels = write_pixels_mono_LOOKUP8_ximage; + } + else { + ctx->Driver.WriteRGBASpan = write_span_LOOKUP_ximage; + ctx->Driver.WriteRGBSpan = write_span_rgb_LOOKUP_ximage; + ctx->Driver.WriteMonoRGBASpan = write_span_mono_ximage; + ctx->Driver.WriteRGBAPixels = write_pixels_LOOKUP_ximage; + ctx->Driver.WriteMonoRGBAPixels = write_pixels_mono_ximage; + } + break; + case PF_GRAYSCALE: + if (depth==8) { + ctx->Driver.WriteRGBASpan = write_span_GRAYSCALE8_ximage; + ctx->Driver.WriteRGBSpan = write_span_rgb_GRAYSCALE8_ximage; + ctx->Driver.WriteMonoRGBASpan = write_span_mono_GRAYSCALE8_ximage; + ctx->Driver.WriteRGBAPixels = write_pixels_GRAYSCALE8_ximage; + ctx->Driver.WriteMonoRGBAPixels = write_pixels_mono_GRAYSCALE8_ximage; + } + else { + ctx->Driver.WriteRGBASpan = write_span_GRAYSCALE_ximage; + ctx->Driver.WriteRGBSpan = write_span_rgb_GRAYSCALE_ximage; + ctx->Driver.WriteMonoRGBASpan = write_span_mono_ximage; + ctx->Driver.WriteRGBAPixels = write_pixels_GRAYSCALE_ximage; + ctx->Driver.WriteMonoRGBAPixels = write_pixels_mono_ximage; + } + break; + default: + gl_problem(NULL,"Bad pixel format in xmesa_update_state (2)"); + return; + } + } + + /* Pixel/span reading functions: */ + ctx->Driver.ReadCI32Span = read_index_span; + ctx->Driver.ReadRGBASpan = read_color_span; + ctx->Driver.ReadCI32Pixels = read_index_pixels; + ctx->Driver.ReadRGBAPixels = read_color_pixels; +} diff --git a/src/mesa/drivers/x11/xm_tri.c b/src/mesa/drivers/x11/xm_tri.c new file mode 100644 index 00000000000..02b186a0b5e --- /dev/null +++ b/src/mesa/drivers/x11/xm_tri.c @@ -0,0 +1,1690 @@ +/* $Id: xm_tri.c,v 1.1 2000/09/07 15:40:30 brianp Exp $ */ + +/* + * Mesa 3-D graphics library + * Version: 3.3 + * + * Copyright (C) 1999 Brian Paul All Rights Reserved. + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN + * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + + +/* + * This file contains "accelerated" triangle functions. It should be + * fairly easy to write new special-purpose triangle functions and hook + * them into this module. + */ + + +#include "glxheader.h" +#include "depth.h" +#include "macros.h" +#include "vb.h" +#include "types.h" +#include "xmesaP.h" + + + + +/**********************************************************************/ +/*** Triangle rendering ***/ +/**********************************************************************/ + + +#if 0 +/* + * Render a triangle into a pixmap, any pixel format, flat shaded and + * no raster ops. + */ +static void flat_pixmap_triangle( GLcontext *ctx, + GLuint v0, GLuint v1, GLuint v2, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + struct vertex_buffer *VB = ctx->VB; + XMesaPoint p[3]; + XMesaGC gc; + + if (0 /*VB->MonoColor*/) { + gc = xmesa->xm_buffer->gc1; /* use current color */ + } + else { + unsigned long pixel; + if (xmesa->xm_visual->gl_visual->RGBAflag) { + pixel = xmesa_color_to_pixel( xmesa, + VB->ColorPtr->data[pv][0], VB->ColorPtr->data[pv][1], + VB->ColorPtr->data[pv][2], VB->ColorPtr->data[pv][3], + xmesa->pixelformat ); + } + else { + pixel = VB->IndexPtr->data[pv]; + } + gc = xmesa->xm_buffer->gc2; + XMesaSetForeground( xmesa->display, gc, pixel ); + } + p[0].x = (GLint) (VB->Win.data[v0][0] + 0.5f); + p[0].y = FLIP( xmesa->xm_buffer, (GLint) (VB->Win.data[v0][1] - 0.5f) ); + p[1].x = (GLint) (VB->Win.data[v1][0] + 0.5f); + p[1].y = FLIP( xmesa->xm_buffer, (GLint) (VB->Win.data[v1][1] - 0.5f) ); + p[2].x = (GLint) (VB->Win.data[v2][0] + 0.5f); + p[2].y = FLIP( xmesa->xm_buffer, (GLint) (VB->Win.data[v2][1] - 0.5f) ); + XMesaFillPolygon( xmesa->display, xmesa->xm_buffer->buffer, gc, + p, 3, Convex, CoordModeOrigin ); +} +#endif + + +/* + * XImage, smooth, depth-buffered, PF_TRUECOLOR triangle. + */ +static void smooth_TRUECOLOR_z_triangle( GLcontext *ctx, + GLuint v0, GLuint v1, GLuint v2, + GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaImage *img = xmesa->xm_buffer->backimage; + (void) pv; +#define INTERP_Z 1 +#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE +#define INTERP_RGB 1 +#define INNER_LOOP( LEFT, RIGHT, Y ) \ +{ \ + GLint i, xx = LEFT, yy = FLIP(xmesa->xm_buffer, Y); \ + GLint len = RIGHT-LEFT; \ + for (i=0;i<len;i++,xx++) { \ + GLdepth z = FixedToDepth(ffz); \ + if (z < zRow[i]) { \ + unsigned long p; \ + PACK_TRUECOLOR(p, FixedToInt(ffr), FixedToInt(ffg), FixedToInt(ffb));\ + XMesaPutPixel( img, xx, yy, p ); \ + zRow[i] = z; \ + } \ + ffr += fdrdx; ffg += fdgdx; ffb += fdbdx; \ + ffz += fdzdx; \ + } \ +} +#include "tritemp.h" +} + + + +/* + * XImage, smooth, depth-buffered, PF_8A8B8G8R triangle. + */ +static void smooth_8A8B8G8R_z_triangle( GLcontext *ctx, + GLuint v0, GLuint v1, GLuint v2, + GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + (void) pv; +#define INTERP_Z 1 +#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE +#define INTERP_RGB 1 +#define PIXEL_ADDRESS(X,Y) PIXELADDR4(xmesa->xm_buffer,X,Y) +#define PIXEL_TYPE GLuint +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define INNER_LOOP( LEFT, RIGHT, Y ) \ +{ \ + GLint i, len = RIGHT-LEFT; \ + for (i=0;i<len;i++) { \ + GLdepth z = FixedToDepth(ffz); \ + if (z < zRow[i]) { \ + pRow[i] = PACK_8B8G8R( FixedToInt(ffr), FixedToInt(ffg), \ + FixedToInt(ffb) ); \ + zRow[i] = z; \ + } \ + ffr += fdrdx; ffg += fdgdx; ffb += fdbdx; \ + ffz += fdzdx; \ + } \ +} +#include "tritemp.h" +} + + +/* + * XImage, smooth, depth-buffered, PF_8R8G8B triangle. + */ +static void smooth_8R8G8B_z_triangle( GLcontext *ctx, + GLuint v0, GLuint v1, GLuint v2, + GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + (void) pv; +#define INTERP_Z 1 +#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE +#define INTERP_RGB 1 +#define PIXEL_ADDRESS(X,Y) PIXELADDR4(xmesa->xm_buffer,X,Y) +#define PIXEL_TYPE GLuint +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define INNER_LOOP( LEFT, RIGHT, Y ) \ +{ \ + GLint i, len = RIGHT-LEFT; \ + for (i=0;i<len;i++) { \ + GLdepth z = FixedToDepth(ffz); \ + if (z < zRow[i]) { \ + pRow[i] = PACK_8R8G8B( FixedToInt(ffr), FixedToInt(ffg), \ + FixedToInt(ffb) ); \ + zRow[i] = z; \ + } \ + ffr += fdrdx; ffg += fdgdx; ffb += fdbdx; \ + ffz += fdzdx; \ + } \ +} +#include "tritemp.h" +} + + +/* + * XImage, smooth, depth-buffered, PF_8R8G8B24 triangle. + */ +static void smooth_8R8G8B24_z_triangle( GLcontext *ctx, + GLuint v0, GLuint v1, GLuint v2, + GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + (void) pv; +#define INTERP_Z 1 +#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE +#define INTERP_RGB 1 +#define PIXEL_ADDRESS(X,Y) PIXELADDR3(xmesa->xm_buffer,X,Y) +#define PIXEL_TYPE bgr_t +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define INNER_LOOP( LEFT, RIGHT, Y ) \ +{ \ + GLint i, len = RIGHT-LEFT; \ + for (i=0;i<len;i++) { \ + GLdepth z = FixedToDepth(ffz); \ + if (z < zRow[i]) { \ + PIXEL_TYPE *ptr = pRow + i; \ + ptr->r = FixedToInt(ffr); \ + ptr->g = FixedToInt(ffg); \ + ptr->b = FixedToInt(ffb); \ + zRow[i] = z; \ + } \ + ffr += fdrdx; ffg += fdgdx; ffb += fdbdx; \ + ffz += fdzdx; \ + } \ +} +#include "tritemp.h" +} + + +/* + * XImage, smooth, depth-buffered, PF_TRUEDITHER triangle. + */ +static void smooth_TRUEDITHER_z_triangle( GLcontext *ctx, + GLuint v0, GLuint v1, GLuint v2, + GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaImage *img = xmesa->xm_buffer->backimage; + (void) pv; +#define INTERP_Z 1 +#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE +#define INTERP_RGB 1 +#define INNER_LOOP( LEFT, RIGHT, Y ) \ +{ \ + GLint i, xx = LEFT, yy = FLIP(xmesa->xm_buffer,Y), len = RIGHT-LEFT; \ + for (i=0;i<len;i++,xx++) { \ + GLdepth z = FixedToDepth(ffz); \ + if (z < zRow[i]) { \ + unsigned long p; \ + PACK_TRUEDITHER( p, xx, yy, FixedToInt(ffr), \ + FixedToInt(ffg), FixedToInt(ffb) ); \ + XMesaPutPixel( img, xx, yy, p ); \ + zRow[i] = z; \ + } \ + ffr += fdrdx; ffg += fdgdx; ffb += fdbdx; \ + ffz += fdzdx; \ + } \ +} +#include "tritemp.h" +} + + +/* + * XImage, smooth, depth-buffered, PF_5R6G5B triangle. + */ +static void smooth_5R6G5B_z_triangle( GLcontext *ctx, + GLuint v0, GLuint v1, GLuint v2, + GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + (void) pv; +#define INTERP_Z 1 +#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE +#define INTERP_RGB 1 +#define PIXEL_ADDRESS(X,Y) PIXELADDR2(xmesa->xm_buffer,X,Y) +#define PIXEL_TYPE GLushort +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define INNER_LOOP( LEFT, RIGHT, Y ) \ +{ \ + GLint i, len = RIGHT-LEFT; \ + for (i=0;i<len;i++) { \ + DEPTH_TYPE z = FixedToDepth(ffz); \ + if (z < zRow[i]) { \ + pRow[i] = PACK_5R6G5B( FixedToInt(ffr), FixedToInt(ffg), \ + FixedToInt(ffb) ); \ + zRow[i] = z; \ + } \ + ffr += fdrdx; ffg += fdgdx; ffb += fdbdx; \ + ffz += fdzdx; \ + } \ +} +#include "tritemp.h" +} + + +/* + * XImage, smooth, depth-buffered, PF_DITHER_5R6G5B triangle. + */ +static void smooth_DITHER_5R6G5B_z_triangle( GLcontext *ctx, + GLuint v0, GLuint v1, GLuint v2, + GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + (void) pv; +#define INTERP_Z 1 +#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE +#define INTERP_RGB 1 +#define PIXEL_ADDRESS(X,Y) PIXELADDR2(xmesa->xm_buffer,X,Y) +#define PIXEL_TYPE GLushort +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define INNER_LOOP( LEFT, RIGHT, Y ) \ +{ \ + GLint i, len = RIGHT-LEFT; \ + for (i=0;i<len;i++) { \ + GLdepth z = FixedToDepth(ffz); \ + if (z < zRow[i]) { \ + PACK_TRUEDITHER(pRow[i], LEFT+i, Y, FixedToInt(ffr), \ + FixedToInt(ffg), FixedToInt(ffb) ); \ + zRow[i] = z; \ + } \ + ffr += fdrdx; ffg += fdgdx; ffb += fdbdx; \ + ffz += fdzdx; \ + } \ +} +#include "tritemp.h" +} + + +/* + * XImage, smooth, depth-buffered, 8-bit, PF_DITHER8 triangle. + */ +static void smooth_DITHER8_z_triangle( GLcontext *ctx, + GLuint v0, GLuint v1, GLuint v2, + GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + (void) pv; +#define INTERP_Z 1 +#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE +#define INTERP_RGB 1 +#define PIXEL_ADDRESS(X,Y) PIXELADDR1(xmesa->xm_buffer,X,Y) +#define PIXEL_TYPE GLubyte +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define INNER_LOOP( LEFT, RIGHT, Y ) \ +{ \ + GLint i, xx = LEFT, yy = FLIP(xmesa->xm_buffer,Y), len = RIGHT-LEFT; \ + XDITHER_SETUP(yy); \ + for (i=0;i<len;i++,xx++) { \ + GLdepth z = FixedToDepth(ffz); \ + if (z < zRow[i]) { \ + pRow[i] = (PIXEL_TYPE) XDITHER( xx, FixedToInt(ffr), \ + FixedToInt(ffg), FixedToInt(ffb) ); \ + zRow[i] = z; \ + } \ + ffr += fdrdx; ffg += fdgdx; ffb += fdbdx; \ + ffz += fdzdx; \ + } \ +} +#include "tritemp.h" +} + + +/* + * XImage, smooth, depth-buffered, PF_DITHER triangle. + */ +static void smooth_DITHER_z_triangle( GLcontext *ctx, + GLuint v0, GLuint v1, GLuint v2, + GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaImage *img = xmesa->xm_buffer->backimage; + (void) pv; +#define INTERP_Z 1 +#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE +#define INTERP_RGB 1 +#define PIXEL_ADDRESS(X,Y) PIXELADDR1(xmesa->xm_buffer,X,Y) +#define PIXEL_TYPE GLubyte +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define INNER_LOOP( LEFT, RIGHT, Y ) \ +{ \ + GLint i, xx = LEFT, yy = FLIP(xmesa->xm_buffer,Y), len = RIGHT-LEFT; \ + XDITHER_SETUP(yy); \ + for (i=0;i<len;i++,xx++) { \ + GLdepth z = FixedToDepth(ffz); \ + if (z < zRow[i]) { \ + unsigned long p = XDITHER( xx, FixedToInt(ffr), \ + FixedToInt(ffg), FixedToInt(ffb) ); \ + XMesaPutPixel( img, xx, yy, p ); \ + zRow[i] = z; \ + } \ + ffr += fdrdx; ffg += fdgdx; ffb += fdbdx; \ + ffz += fdzdx; \ + } \ +} +#include "tritemp.h" +} + + +/* + * XImage, smooth, depth-buffered, 8-bit PF_LOOKUP triangle. + */ +static void smooth_LOOKUP8_z_triangle( GLcontext *ctx, GLuint v0, GLuint v1, + GLuint v2, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + (void) pv; +#define INTERP_Z 1 +#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE +#define INTERP_RGB 1 +#define PIXEL_ADDRESS(X,Y) PIXELADDR1(xmesa->xm_buffer,X,Y) +#define PIXEL_TYPE GLubyte +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define INNER_LOOP( LEFT, RIGHT, Y ) \ +{ \ + GLint i, len = RIGHT-LEFT; \ + LOOKUP_SETUP; \ + for (i=0;i<len;i++) { \ + GLdepth z = FixedToDepth(ffz); \ + if (z < zRow[i]) { \ + pRow[i] = LOOKUP( FixedToInt(ffr), FixedToInt(ffg), \ + FixedToInt(ffb) ); \ + zRow[i] = z; \ + } \ + ffr += fdrdx; ffg += fdgdx; ffb += fdbdx; \ + ffz += fdzdx; \ + } \ +} +#include "tritemp.h" +} + + + +/* + * XImage, smooth, depth-buffered, 8-bit PF_HPCR triangle. + */ +static void smooth_HPCR_z_triangle( GLcontext *ctx, GLuint v0, GLuint v1, + GLuint v2, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + (void) pv; +#define INTERP_Z 1 +#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE +#define INTERP_RGB 1 +#define PIXEL_ADDRESS(X,Y) PIXELADDR1(xmesa->xm_buffer,X,Y) +#define PIXEL_TYPE GLubyte +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define INNER_LOOP( LEFT, RIGHT, Y ) \ +{ \ + GLint i, xx = LEFT, yy = FLIP(xmesa->xm_buffer,Y), len = RIGHT-LEFT; \ + for (i=0;i<len;i++,xx++) { \ + GLdepth z = FixedToDepth(ffz); \ + if (z < zRow[i]) { \ + pRow[i] = DITHER_HPCR( xx, yy, FixedToInt(ffr), \ + FixedToInt(ffg), FixedToInt(ffb) ); \ + zRow[i] = z; \ + } \ + ffr += fdrdx; ffg += fdgdx; ffb += fdbdx; \ + ffz += fdzdx; \ + } \ +} +#include "tritemp.h" +} + + +/* + * XImage, flat, depth-buffered, PF_TRUECOLOR triangle. + */ +static void flat_TRUECOLOR_z_triangle( GLcontext *ctx, + GLuint v0, GLuint v1, GLuint v2, + GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaImage *img = xmesa->xm_buffer->backimage; +#define INTERP_Z 1 +#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE +#define SETUP_CODE \ + unsigned long pixel; \ + PACK_TRUECOLOR(pixel, VB->ColorPtr->data[pv][0], VB->ColorPtr->data[pv][1], VB->ColorPtr->data[pv][2]); + +#define INNER_LOOP( LEFT, RIGHT, Y ) \ +{ \ + GLint i, xx = LEFT, yy = FLIP(xmesa->xm_buffer,Y), len = RIGHT-LEFT; \ + for (i=0;i<len;i++,xx++) { \ + GLdepth z = FixedToDepth(ffz); \ + if (z < zRow[i]) { \ + XMesaPutPixel( img, xx, yy, pixel ); \ + zRow[i] = z; \ + } \ + ffz += fdzdx; \ + } \ +} +#include "tritemp.h" +} + + +/* + * XImage, flat, depth-buffered, PF_8A8B8G8R triangle. + */ +static void flat_8A8B8G8R_z_triangle( GLcontext *ctx, GLuint v0, + GLuint v1, GLuint v2, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; +#define INTERP_Z 1 +#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE +#define PIXEL_ADDRESS(X,Y) PIXELADDR4(xmesa->xm_buffer,X,Y) +#define PIXEL_TYPE GLuint +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define SETUP_CODE \ + unsigned long p = PACK_8B8G8R( VB->ColorPtr->data[pv][0], \ + VB->ColorPtr->data[pv][1], VB->ColorPtr->data[pv][2] ); +#define INNER_LOOP( LEFT, RIGHT, Y ) \ +{ \ + GLint i, len = RIGHT-LEFT; \ + for (i=0;i<len;i++) { \ + GLdepth z = FixedToDepth(ffz); \ + if (z < zRow[i]) { \ + pRow[i] = (PIXEL_TYPE) p; \ + zRow[i] = z; \ + } \ + ffz += fdzdx; \ + } \ +} +#include "tritemp.h" +} + + +/* + * XImage, flat, depth-buffered, PF_8R8G8B triangle. + */ +static void flat_8R8G8B_z_triangle( GLcontext *ctx, GLuint v0, GLuint v1, + GLuint v2, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; +#define INTERP_Z 1 +#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE +#define PIXEL_ADDRESS(X,Y) PIXELADDR4(xmesa->xm_buffer,X,Y) +#define PIXEL_TYPE GLuint +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define SETUP_CODE \ + unsigned long p = PACK_8R8G8B( VB->ColorPtr->data[pv][0], \ + VB->ColorPtr->data[pv][1], VB->ColorPtr->data[pv][2] ); +#define INNER_LOOP( LEFT, RIGHT, Y ) \ +{ \ + GLint i, len = RIGHT-LEFT; \ + for (i=0;i<len;i++) { \ + GLdepth z = FixedToDepth(ffz); \ + if (z < zRow[i]) { \ + pRow[i] = (PIXEL_TYPE) p; \ + zRow[i] = z; \ + } \ + ffz += fdzdx; \ + } \ +} +#include "tritemp.h" +} + + +/* + * XImage, flat, depth-buffered, PF_8R8G8B24 triangle. + */ +static void flat_8R8G8B24_z_triangle( GLcontext *ctx, GLuint v0, GLuint v1, + GLuint v2, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + const GLubyte *color = ctx->VB->ColorPtr->data[pv]; +#define INTERP_Z 1 +#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE +#define PIXEL_ADDRESS(X,Y) PIXELADDR3(xmesa->xm_buffer,X,Y) +#define PIXEL_TYPE bgr_t +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define INNER_LOOP( LEFT, RIGHT, Y ) \ +{ \ + GLint i, len = RIGHT-LEFT; \ + for (i=0;i<len;i++) { \ + GLdepth z = FixedToDepth(ffz); \ + if (z < zRow[i]) { \ + PIXEL_TYPE *ptr = pRow+i; \ + ptr->r = color[RCOMP]; \ + ptr->g = color[GCOMP]; \ + ptr->b = color[BCOMP]; \ + zRow[i] = z; \ + } \ + ffz += fdzdx; \ + } \ +} +#include "tritemp.h" +} + + +/* + * XImage, flat, depth-buffered, PF_TRUEDITHER triangle. + */ +static void flat_TRUEDITHER_z_triangle( GLcontext *ctx, GLuint v0, GLuint v1, + GLuint v2, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaImage *img = xmesa->xm_buffer->backimage; +#define INTERP_Z 1 +#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE +#define INNER_LOOP( LEFT, RIGHT, Y ) \ +{ \ + GLint i, xx = LEFT, yy = FLIP(xmesa->xm_buffer,Y), len = RIGHT-LEFT; \ + for (i=0;i<len;i++,xx++) { \ + GLdepth z = FixedToDepth(ffz); \ + if (z < zRow[i]) { \ + unsigned long p; \ + PACK_TRUEDITHER( p, xx, yy, VB->ColorPtr->data[pv][0], \ + VB->ColorPtr->data[pv][1], VB->ColorPtr->data[pv][2] ); \ + XMesaPutPixel( img, xx, yy, p ); \ + zRow[i] = z; \ + } \ + ffz += fdzdx; \ + } \ +} +#include "tritemp.h" +} + + +/* + * XImage, flat, depth-buffered, PF_5R6G5B triangle. + */ +static void flat_5R6G5B_z_triangle( GLcontext *ctx, GLuint v0, GLuint v1, + GLuint v2, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; +#define INTERP_Z 1 +#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE +#define PIXEL_ADDRESS(X,Y) PIXELADDR2(xmesa->xm_buffer,X,Y) +#define PIXEL_TYPE GLushort +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define SETUP_CODE \ + unsigned long p = PACK_5R6G5B( VB->ColorPtr->data[pv][0], \ + VB->ColorPtr->data[pv][1], VB->ColorPtr->data[pv][2] ); +#define INNER_LOOP( LEFT, RIGHT, Y ) \ +{ \ + GLint i, len = RIGHT-LEFT; \ + for (i=0;i<len;i++) { \ + DEPTH_TYPE z = FixedToDepth(ffz); \ + if (z < zRow[i]) { \ + pRow[i] = (PIXEL_TYPE) p; \ + zRow[i] = z; \ + } \ + ffz += fdzdx; \ + } \ +} +#include "tritemp.h" +} + + +/* + * XImage, flat, depth-buffered, PF_DITHER_5R6G5B triangle. + */ +static void flat_DITHER_5R6G5B_z_triangle( GLcontext *ctx, GLuint v0, + GLuint v1, GLuint v2, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + const GLubyte *color = ctx->VB->ColorPtr->data[pv]; +#define INTERP_Z 1 +#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE +#define PIXEL_ADDRESS(X,Y) PIXELADDR2(xmesa->xm_buffer,X,Y) +#define PIXEL_TYPE GLushort +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define INNER_LOOP( LEFT, RIGHT, Y ) \ +{ \ + GLint i, len = RIGHT-LEFT; \ + for (i=0;i<len;i++) { \ + DEPTH_TYPE z = FixedToDepth(ffz); \ + if (z < zRow[i]) { \ + PACK_TRUEDITHER(pRow[i], LEFT+i, Y, color[RCOMP], \ + color[GCOMP], color[BCOMP]); \ + zRow[i] = z; \ + } \ + ffz += fdzdx; \ + } \ +} +#include "tritemp.h" +} + + +/* + * XImage, flat, depth-buffered, 8-bit PF_DITHER triangle. + */ +static void flat_DITHER8_z_triangle( GLcontext *ctx, GLuint v0, GLuint v1, + GLuint v2, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; +#define INTERP_Z 1 +#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE +#define PIXEL_ADDRESS(X,Y) PIXELADDR1(xmesa->xm_buffer,X,Y) +#define PIXEL_TYPE GLubyte +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define SETUP_CODE \ + FLAT_DITHER_SETUP( VB->ColorPtr->data[pv][0], VB->ColorPtr->data[pv][1], VB->ColorPtr->data[pv][2] ); + +#define INNER_LOOP( LEFT, RIGHT, Y ) \ +{ \ + GLint i, xx = LEFT, len = RIGHT-LEFT; \ + FLAT_DITHER_ROW_SETUP(FLIP(xmesa->xm_buffer, Y)); \ + for (i=0;i<len;i++,xx++) { \ + GLdepth z = FixedToDepth(ffz); \ + if (z < zRow[i]) { \ + pRow[i] = (PIXEL_TYPE) FLAT_DITHER(xx); \ + zRow[i] = z; \ + } \ + ffz += fdzdx; \ + } \ +} +#include "tritemp.h" +} + + +/* + * XImage, flat, depth-buffered, PF_DITHER triangle. + */ +static void flat_DITHER_z_triangle( GLcontext *ctx, GLuint v0, GLuint v1, + GLuint v2, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaImage *img = xmesa->xm_buffer->backimage; +#define INTERP_Z 1 +#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE +#define SETUP_CODE \ + FLAT_DITHER_SETUP( VB->ColorPtr->data[pv][0], VB->ColorPtr->data[pv][1], VB->ColorPtr->data[pv][2] ); + +#define INNER_LOOP( LEFT, RIGHT, Y ) \ +{ \ + GLint i, xx = LEFT, yy = FLIP(xmesa->xm_buffer,Y), len = RIGHT-LEFT; \ + FLAT_DITHER_ROW_SETUP(yy); \ + for (i=0;i<len;i++,xx++) { \ + GLdepth z = FixedToDepth(ffz); \ + if (z < zRow[i]) { \ + unsigned long p = FLAT_DITHER(xx); \ + XMesaPutPixel( img, xx, yy, p ); \ + zRow[i] = z; \ + } \ + ffz += fdzdx; \ + } \ +} +#include "tritemp.h" +} + + +/* + * XImage, flat, depth-buffered, 8-bit PF_HPCR triangle. + */ +static void flat_HPCR_z_triangle( GLcontext *ctx, GLuint v0, GLuint v1, + GLuint v2, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; +#define INTERP_Z 1 +#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE +#define PIXEL_ADDRESS(X,Y) PIXELADDR1(xmesa->xm_buffer,X,Y) +#define PIXEL_TYPE GLubyte +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define SETUP_CODE \ + GLubyte r = VB->ColorPtr->data[pv][0]; \ + GLubyte g = VB->ColorPtr->data[pv][1]; \ + GLubyte b = VB->ColorPtr->data[pv][2]; +#define INNER_LOOP( LEFT, RIGHT, Y ) \ +{ \ + GLint i, xx = LEFT, yy = FLIP(xmesa->xm_buffer,Y), len = RIGHT-LEFT; \ + for (i=0;i<len;i++,xx++) { \ + GLdepth z = FixedToDepth(ffz); \ + if (z < zRow[i]) { \ + pRow[i] = (PIXEL_TYPE) DITHER_HPCR( xx, yy, r, g, b ); \ + zRow[i] = z; \ + } \ + ffz += fdzdx; \ + } \ +} +#include "tritemp.h" +} + + +/* + * XImage, flat, depth-buffered, 8-bit PF_LOOKUP triangle. + */ +static void flat_LOOKUP8_z_triangle( GLcontext *ctx, GLuint v0, GLuint v1, + GLuint v2, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; +#define INTERP_Z 1 +#define DEPTH_TYPE DEFAULT_SOFTWARE_DEPTH_TYPE +#define PIXEL_ADDRESS(X,Y) PIXELADDR1(xmesa->xm_buffer,X,Y) +#define PIXEL_TYPE GLubyte +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define SETUP_CODE \ + LOOKUP_SETUP; \ + GLubyte r = VB->ColorPtr->data[pv][0]; \ + GLubyte g = VB->ColorPtr->data[pv][1]; \ + GLubyte b = VB->ColorPtr->data[pv][2]; \ + GLubyte p = LOOKUP(r,g,b); +#define INNER_LOOP( LEFT, RIGHT, Y ) \ +{ \ + GLint i, len = RIGHT-LEFT; \ + for (i=0;i<len;i++) { \ + GLdepth z = FixedToDepth(ffz); \ + if (z < zRow[i]) { \ + pRow[i] = p; \ + zRow[i] = z; \ + } \ + ffz += fdzdx; \ + } \ +} +#include "tritemp.h" +} + + + +/* + * XImage, smooth, NON-depth-buffered, PF_TRUECOLOR triangle. + */ +static void smooth_TRUECOLOR_triangle( GLcontext *ctx, GLuint v0, GLuint v1, + GLuint v2, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaImage *img = xmesa->xm_buffer->backimage; + (void) pv; +#define INTERP_RGB 1 +#define INNER_LOOP( LEFT, RIGHT, Y ) \ +{ \ + GLint xx, yy = FLIP(xmesa->xm_buffer, Y); \ + for (xx=LEFT;xx<RIGHT;xx++) { \ + unsigned long p; \ + PACK_TRUECOLOR(p, FixedToInt(ffr), FixedToInt(ffg), FixedToInt(ffb));\ + XMesaPutPixel( img, xx, yy, p ); \ + ffr += fdrdx; ffg += fdgdx; ffb += fdbdx; \ + } \ +} +#include "tritemp.h" +} + + +/* + * XImage, smooth, NON-depth-buffered, PF_8A8B8G8R triangle. + */ +static void smooth_8A8B8G8R_triangle( GLcontext *ctx, GLuint v0, GLuint v1, + GLuint v2, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + (void) pv; +#define INTERP_RGB 1 +#define PIXEL_ADDRESS(X,Y) PIXELADDR4(xmesa->xm_buffer,X,Y) +#define PIXEL_TYPE GLuint +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define INNER_LOOP( LEFT, RIGHT, Y ) \ +{ \ + GLint xx; \ + PIXEL_TYPE *pixel = pRow; \ + for (xx=LEFT;xx<RIGHT;xx++,pixel++) { \ + *pixel = PACK_8B8G8R( FixedToInt(ffr), FixedToInt(ffg), \ + FixedToInt(ffb) ); \ + ffr += fdrdx; ffg += fdgdx; ffb += fdbdx; \ + } \ +} +#include "tritemp.h" +} + + +/* + * XImage, smooth, NON-depth-buffered, PF_8R8G8B triangle. + */ +static void smooth_8R8G8B_triangle( GLcontext *ctx, GLuint v0, GLuint v1, + GLuint v2, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + (void) pv; +#define INTERP_RGB 1 +#define PIXEL_ADDRESS(X,Y) PIXELADDR4(xmesa->xm_buffer,X,Y) +#define PIXEL_TYPE GLuint +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define INNER_LOOP( LEFT, RIGHT, Y ) \ +{ \ + GLint xx; \ + PIXEL_TYPE *pixel = pRow; \ + for (xx=LEFT;xx<RIGHT;xx++,pixel++) { \ + *pixel = PACK_8R8G8B( FixedToInt(ffr), FixedToInt(ffg), \ + FixedToInt(ffb) ); \ + ffr += fdrdx; ffg += fdgdx; ffb += fdbdx; \ + } \ +} +#include "tritemp.h" +} + + +/* + * XImage, smooth, NON-depth-buffered, PF_8R8G8B triangle. + */ +static void smooth_8R8G8B24_triangle( GLcontext *ctx, GLuint v0, GLuint v1, + GLuint v2, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + (void) pv; +#define INTERP_RGB 1 +#define PIXEL_ADDRESS(X,Y) PIXELADDR3(xmesa->xm_buffer,X,Y) +#define PIXEL_TYPE bgr_t +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define INNER_LOOP( LEFT, RIGHT, Y ) \ +{ \ + GLint xx; \ + PIXEL_TYPE *pixel = pRow; \ + for (xx=LEFT;xx<RIGHT;xx++) { \ + pixel->r = FixedToInt(ffr); \ + pixel->g = FixedToInt(ffg); \ + pixel->b = FixedToInt(ffb); \ + ffr += fdrdx; ffg += fdgdx; ffb += fdbdx; \ + pixel++; \ + } \ +} +#include "tritemp.h" +} + + +/* + * XImage, smooth, NON-depth-buffered, PF_TRUEDITHER triangle. + */ +static void smooth_TRUEDITHER_triangle( GLcontext *ctx, GLuint v0, GLuint v1, + GLuint v2, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaImage *img = xmesa->xm_buffer->backimage; + (void) pv; +#define INTERP_RGB 1 +#define INNER_LOOP( LEFT, RIGHT, Y ) \ +{ \ + GLint xx, yy = FLIP(xmesa->xm_buffer, Y); \ + for (xx=LEFT;xx<RIGHT;xx++) { \ + unsigned long p; \ + PACK_TRUEDITHER( p, xx, yy, FixedToInt(ffr), FixedToInt(ffg), \ + FixedToInt(ffb) ); \ + XMesaPutPixel( img, xx, yy, p ); \ + ffr += fdrdx; ffg += fdgdx; ffb += fdbdx; \ + } \ +} +#include "tritemp.h" +} + + +/* + * XImage, smooth, NON-depth-buffered, PF_5R6G5B triangle. + */ +static void smooth_5R6G5B_triangle( GLcontext *ctx, GLuint v0, GLuint v1, + GLuint v2, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + (void) pv; +#define INTERP_RGB 1 +#define PIXEL_ADDRESS(X,Y) PIXELADDR2(xmesa->xm_buffer,X,Y) +#define PIXEL_TYPE GLushort +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define INNER_LOOP( LEFT, RIGHT, Y ) \ +{ \ + GLint xx; \ + PIXEL_TYPE *pixel = pRow; \ + for (xx=LEFT;xx<RIGHT;xx++,pixel++) { \ + *pixel = (PIXEL_TYPE) PACK_5R6G5B( FixedToInt(ffr), \ + FixedToInt(ffg), FixedToInt(ffb) ); \ + ffr += fdrdx; ffg += fdgdx; ffb += fdbdx; \ + } \ +} +#include "tritemp.h" +} + + +/* + * XImage, smooth, NON-depth-buffered, PF_DITHER_5R6G5B triangle. + */ +static void smooth_DITHER_5R6G5B_triangle( GLcontext *ctx, GLuint v0, + GLuint v1, GLuint v2, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + (void) pv; +#define INTERP_RGB 1 +#define PIXEL_ADDRESS(X,Y) PIXELADDR2(xmesa->xm_buffer,X,Y) +#define PIXEL_TYPE GLushort +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define INNER_LOOP( LEFT, RIGHT, Y ) \ +{ \ + GLint xx; \ + PIXEL_TYPE *pixel = pRow; \ + for (xx=LEFT;xx<RIGHT;xx++,pixel++) { \ + PACK_TRUEDITHER(*pixel, xx, Y, FixedToInt(ffr), \ + FixedToInt(ffg), FixedToInt(ffb) ); \ + ffr += fdrdx; ffg += fdgdx; ffb += fdbdx; \ + } \ +} +#include "tritemp.h" +} + + +/* + * XImage, smooth, NON-depth-buffered, 8-bit PF_DITHER triangle. + */ +static void smooth_DITHER8_triangle( GLcontext *ctx, GLuint v0, GLuint v1, + GLuint v2, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + (void) pv; +#define INTERP_RGB 1 +#define PIXEL_ADDRESS(X,Y) PIXELADDR1(xmesa->xm_buffer,X,Y) +#define PIXEL_TYPE GLubyte +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define INNER_LOOP( LEFT, RIGHT, Y ) \ +{ \ + GLint xx, yy = FLIP(xmesa->xm_buffer, Y); \ + PIXEL_TYPE *pixel = pRow; \ + XDITHER_SETUP(yy); \ + for (xx=LEFT;xx<RIGHT;xx++,pixel++) { \ + *pixel = (PIXEL_TYPE) XDITHER( xx, FixedToInt(ffr), \ + FixedToInt(ffg), FixedToInt(ffb) ); \ + ffr += fdrdx; ffg += fdgdx; ffb += fdbdx; \ + } \ +} +#include "tritemp.h" +} + + +/* + * XImage, smooth, NON-depth-buffered, PF_DITHER triangle. + */ +static void smooth_DITHER_triangle( GLcontext *ctx, GLuint v0, GLuint v1, + GLuint v2, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaImage *img = xmesa->xm_buffer->backimage; + (void) pv; +#define INTERP_RGB 1 +#define INNER_LOOP( LEFT, RIGHT, Y ) \ +{ \ + GLint xx, yy = FLIP(xmesa->xm_buffer, Y); \ + XDITHER_SETUP(yy); \ + for (xx=LEFT;xx<RIGHT;xx++) { \ + unsigned long p = XDITHER( xx, FixedToInt(ffr), \ + FixedToInt(ffg), FixedToInt(ffb) ); \ + XMesaPutPixel( img, xx, yy, p ); \ + ffr += fdrdx; ffg += fdgdx; ffb += fdbdx; \ + } \ +} +#include "tritemp.h" +} + + +/* + * XImage, smooth, NON-depth-buffered, 8-bit PF_LOOKUP triangle. + */ +static void smooth_LOOKUP8_triangle( GLcontext *ctx, GLuint v0, GLuint v1, + GLuint v2, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + (void) pv; +#define INTERP_RGB 1 +#define PIXEL_ADDRESS(X,Y) PIXELADDR1(xmesa->xm_buffer,X,Y) +#define PIXEL_TYPE GLubyte +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define INNER_LOOP( LEFT, RIGHT, Y ) \ +{ \ + GLint xx; \ + PIXEL_TYPE *pixel = pRow; \ + LOOKUP_SETUP; \ + for (xx=LEFT;xx<RIGHT;xx++,pixel++) { \ + *pixel = LOOKUP( FixedToInt(ffr), FixedToInt(ffg), \ + FixedToInt(ffb) ); \ + ffr += fdrdx; ffg += fdgdx; ffb += fdbdx; \ + } \ +} +#include "tritemp.h" +} + + + +/* + * XImage, smooth, NON-depth-buffered, 8-bit PF_HPCR triangle. + */ +static void smooth_HPCR_triangle( GLcontext *ctx, GLuint v0, GLuint v1, + GLuint v2, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + (void) pv; +#define INTERP_RGB 1 +#define PIXEL_ADDRESS(X,Y) PIXELADDR1(xmesa->xm_buffer,X,Y) +#define PIXEL_TYPE GLubyte +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define INNER_LOOP( LEFT, RIGHT, Y ) \ +{ \ + GLint xx, yy = FLIP(xmesa->xm_buffer, Y); \ + PIXEL_TYPE *pixel = pRow; \ + for (xx=LEFT;xx<RIGHT;xx++,pixel++) { \ + *pixel = DITHER_HPCR( xx, yy, FixedToInt(ffr), \ + FixedToInt(ffg), FixedToInt(ffb) ); \ + ffr += fdrdx; ffg += fdgdx; ffb += fdbdx; \ + } \ +} +#include "tritemp.h" +} + + +/* + * XImage, flat, NON-depth-buffered, PF_TRUECOLOR triangle. + */ +static void flat_TRUECOLOR_triangle( GLcontext *ctx, GLuint v0, + GLuint v1, GLuint v2, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaImage *img = xmesa->xm_buffer->backimage; +#define SETUP_CODE \ + unsigned long pixel; \ + PACK_TRUECOLOR(pixel, VB->ColorPtr->data[pv][0], VB->ColorPtr->data[pv][1], VB->ColorPtr->data[pv][2]); + +#define INNER_LOOP( LEFT, RIGHT, Y ) \ +{ \ + GLint xx, yy = FLIP(xmesa->xm_buffer, Y); \ + for (xx=LEFT;xx<RIGHT;xx++) { \ + XMesaPutPixel( img, xx, yy, pixel ); \ + } \ +} +#include "tritemp.h" +} + + +/* + * XImage, flat, NON-depth-buffered, PF_8A8B8G8R triangle. + */ +static void flat_8A8B8G8R_triangle( GLcontext *ctx, GLuint v0, + GLuint v1, GLuint v2, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; +#define PIXEL_ADDRESS(X,Y) PIXELADDR4(xmesa->xm_buffer,X,Y) +#define PIXEL_TYPE GLuint +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define SETUP_CODE \ + unsigned long p = PACK_8B8G8R( VB->ColorPtr->data[pv][0], \ + VB->ColorPtr->data[pv][1], VB->ColorPtr->data[pv][2] ); +#define INNER_LOOP( LEFT, RIGHT, Y ) \ +{ \ + GLint xx; \ + PIXEL_TYPE *pixel = pRow; \ + for (xx=LEFT;xx<RIGHT;xx++,pixel++) { \ + *pixel = (PIXEL_TYPE) p; \ + } \ +} +#include "tritemp.h" +} + + +/* + * XImage, flat, NON-depth-buffered, PF_8R8G8B triangle. + */ +static void flat_8R8G8B_triangle( GLcontext *ctx, GLuint v0, GLuint v1, + GLuint v2, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; +#define PIXEL_ADDRESS(X,Y) PIXELADDR4(xmesa->xm_buffer,X,Y) +#define PIXEL_TYPE GLuint +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define SETUP_CODE \ + unsigned long p = PACK_8R8G8B( VB->ColorPtr->data[pv][0], \ + VB->ColorPtr->data[pv][1], VB->ColorPtr->data[pv][2] ); +#define INNER_LOOP( LEFT, RIGHT, Y ) \ +{ \ + GLint xx; \ + PIXEL_TYPE *pixel = pRow; \ + for (xx=LEFT;xx<RIGHT;xx++,pixel++) { \ + *pixel = (PIXEL_TYPE) p; \ + } \ +} +#include "tritemp.h" +} + + +/* + * XImage, flat, NON-depth-buffered, PF_8R8G8B24 triangle. + */ +static void flat_8R8G8B24_triangle( GLcontext *ctx, GLuint v0, GLuint v1, + GLuint v2, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + const GLubyte *color = ctx->VB->ColorPtr->data[pv]; +#define PIXEL_ADDRESS(X,Y) PIXELADDR3(xmesa->xm_buffer,X,Y) +#define PIXEL_TYPE bgr_t +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define INNER_LOOP( LEFT, RIGHT, Y ) \ +{ \ + GLint xx; \ + PIXEL_TYPE *pixel = pRow; \ + for (xx=LEFT;xx<RIGHT;xx++) { \ + pixel->r = color[RCOMP]; \ + pixel->g = color[GCOMP]; \ + pixel->b = color[BCOMP]; \ + pixel++; \ + } \ +} +#include "tritemp.h" +} + +/* + * XImage, flat, NON-depth-buffered, PF_TRUEDITHER triangle. + */ +static void flat_TRUEDITHER_triangle( GLcontext *ctx, GLuint v0, GLuint v1, + GLuint v2, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaImage *img = xmesa->xm_buffer->backimage; +#define INNER_LOOP( LEFT, RIGHT, Y ) \ +{ \ + GLint xx, yy = FLIP(xmesa->xm_buffer, Y); \ + for (xx=LEFT;xx<RIGHT;xx++) { \ + unsigned long p; \ + PACK_TRUEDITHER( p, xx, yy, VB->ColorPtr->data[pv][0], \ + VB->ColorPtr->data[pv][1], VB->ColorPtr->data[pv][2] ); \ + XMesaPutPixel( img, xx, yy, p ); \ + } \ +} +#include "tritemp.h" +} + + + +/* + * XImage, flat, NON-depth-buffered, PF_5R6G5B triangle. + */ +static void flat_5R6G5B_triangle( GLcontext *ctx, GLuint v0, GLuint v1, + GLuint v2, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; +#define PIXEL_ADDRESS(X,Y) PIXELADDR2(xmesa->xm_buffer,X,Y) +#define PIXEL_TYPE GLushort +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define SETUP_CODE \ + unsigned long p = PACK_5R6G5B( VB->ColorPtr->data[pv][0], \ + VB->ColorPtr->data[pv][1], VB->ColorPtr->data[pv][2] ); +#define INNER_LOOP( LEFT, RIGHT, Y ) \ +{ \ + GLint xx; \ + PIXEL_TYPE *pixel = pRow; \ + for (xx=LEFT;xx<RIGHT;xx++,pixel++) { \ + *pixel = (PIXEL_TYPE) p; \ + } \ +} +#include "tritemp.h" +} + + +/* + * XImage, flat, NON-depth-buffered, PF_DITHER_5R6G5B triangle. + */ +static void flat_DITHER_5R6G5B_triangle( GLcontext *ctx, GLuint v0, GLuint v1, + GLuint v2, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + const GLubyte *color = ctx->VB->ColorPtr->data[pv]; +#define PIXEL_ADDRESS(X,Y) PIXELADDR2(xmesa->xm_buffer,X,Y) +#define PIXEL_TYPE GLushort +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define INNER_LOOP( LEFT, RIGHT, Y ) \ +{ \ + GLint xx; \ + PIXEL_TYPE *pixel = pRow; \ + for (xx=LEFT;xx<RIGHT;xx++,pixel++) { \ + PACK_TRUEDITHER(*pixel, xx, Y, color[RCOMP], \ + color[GCOMP], color[BCOMP]); \ + } \ +} +#include "tritemp.h" +} + + +/* + * XImage, flat, NON-depth-buffered, 8-bit PF_DITHER triangle. + */ +static void flat_DITHER8_triangle( GLcontext *ctx, GLuint v0, GLuint v1, + GLuint v2, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; +#define PIXEL_ADDRESS(X,Y) PIXELADDR1(xmesa->xm_buffer,X,Y) +#define PIXEL_TYPE GLubyte +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define SETUP_CODE \ + FLAT_DITHER_SETUP( VB->ColorPtr->data[pv][0], VB->ColorPtr->data[pv][1], VB->ColorPtr->data[pv][2] ); + +#define INNER_LOOP( LEFT, RIGHT, Y ) \ +{ \ + GLint xx; \ + PIXEL_TYPE *pixel = pRow; \ + FLAT_DITHER_ROW_SETUP(FLIP(xmesa->xm_buffer, Y)); \ + for (xx=LEFT;xx<RIGHT;xx++,pixel++) { \ + *pixel = (PIXEL_TYPE) FLAT_DITHER(xx); \ + } \ +} +#include "tritemp.h" +} + + +/* + * XImage, flat, NON-depth-buffered, PF_DITHER triangle. + */ +static void flat_DITHER_triangle( GLcontext *ctx, GLuint v0, GLuint v1, + GLuint v2, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + XMesaImage *img = xmesa->xm_buffer->backimage; +#define SETUP_CODE \ + FLAT_DITHER_SETUP( VB->ColorPtr->data[pv][0], VB->ColorPtr->data[pv][1], VB->ColorPtr->data[pv][2] ); + +#define INNER_LOOP( LEFT, RIGHT, Y ) \ +{ \ + GLint xx, yy = FLIP(xmesa->xm_buffer, Y); \ + FLAT_DITHER_ROW_SETUP(yy); \ + for (xx=LEFT;xx<RIGHT;xx++) { \ + unsigned long p = FLAT_DITHER(xx); \ + XMesaPutPixel( img, xx, yy, p ); \ + } \ +} +#include "tritemp.h" +} + + +/* + * XImage, flat, NON-depth-buffered, 8-bit PF_HPCR triangle. + */ +static void flat_HPCR_triangle( GLcontext *ctx, GLuint v0, GLuint v1, + GLuint v2, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; +#define PIXEL_ADDRESS(X,Y) PIXELADDR1(xmesa->xm_buffer,X,Y) +#define PIXEL_TYPE GLubyte +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define SETUP_CODE \ + GLubyte r = VB->ColorPtr->data[pv][0]; \ + GLubyte g = VB->ColorPtr->data[pv][1]; \ + GLubyte b = VB->ColorPtr->data[pv][2]; +#define INNER_LOOP( LEFT, RIGHT, Y ) \ +{ \ + GLint xx, yy = FLIP(xmesa->xm_buffer, Y); \ + PIXEL_TYPE *pixel = pRow; \ + for (xx=LEFT;xx<RIGHT;xx++,pixel++) { \ + *pixel = (PIXEL_TYPE) DITHER_HPCR( xx, yy, r, g, b ); \ + } \ +} +#include "tritemp.h" +} + + +/* + * XImage, flat, NON-depth-buffered, 8-bit PF_LOOKUP triangle. + */ +static void flat_LOOKUP8_triangle( GLcontext *ctx, GLuint v0, GLuint v1, + GLuint v2, GLuint pv ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; +#define PIXEL_ADDRESS(X,Y) PIXELADDR1(xmesa->xm_buffer,X,Y) +#define PIXEL_TYPE GLubyte +#define BYTES_PER_ROW (xmesa->xm_buffer->backimage->bytes_per_line) +#define SETUP_CODE \ + LOOKUP_SETUP; \ + GLubyte r = VB->ColorPtr->data[pv][0]; \ + GLubyte g = VB->ColorPtr->data[pv][1]; \ + GLubyte b = VB->ColorPtr->data[pv][2]; \ + GLubyte p = LOOKUP(r,g,b); +#define INNER_LOOP( LEFT, RIGHT, Y ) \ +{ \ + GLint xx; \ + PIXEL_TYPE *pixel = pRow; \ + for (xx=LEFT;xx<RIGHT;xx++,pixel++) { \ + *pixel = p; \ + } \ +} +#include "tritemp.h" +} + + + +#if 0 +/* + * This function is called if we're about to render triangles into an + * X window/pixmap. It sets the polygon stipple pattern if enabled. + */ +static void setup_x_polygon_options( GLcontext *ctx ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + int fill_type; + + if (ctx->Polygon.StippleFlag) { + if (xmesa->xm_buffer->stipple_pixmap == 0) { + /* Allocate polygon stippling stuff once for this context. */ + XMesaBuffer b = xmesa->xm_buffer; + b->stipple_pixmap = XMesaCreatePixmap( xmesa->display, + b->buffer, 32, 32, 1 ); +#ifdef XFree86Server + b->stipple_gc = CreateScratchGC(xmesa->display, 1); +#else + b->stipple_gc = XCreateGC(xmesa->display, b->stipple_pixmap, 0, NULL); +#endif + XMesaSetFunction(xmesa->display, b->stipple_gc, GXcopy); + XMesaSetForeground(xmesa->display, b->stipple_gc, 1); + XMesaSetBackground(xmesa->display, b->stipple_gc, 0); + } + + /* + * NOTE: We don't handle the following here! + * GL_UNPACK_SWAP_BYTES + * GL_UNPACK_LSB_FIRST + */ + /* Copy Mesa stipple pattern to an XImage then to Pixmap */ + { + XMesaImage *stipple_ximage; + GLuint stipple[32]; + int i; + int shift = xmesa->xm_buffer->height % 32; + for (i=0;i<32;i++) { + stipple[31-i] = ctx->PolygonStipple[(i+shift) % 32]; + } +#ifdef XFree86Server + stipple_ximage = XMesaCreateImage(1, 32, 32, (char *)stipple); +#else + stipple_ximage = XCreateImage( xmesa->display, + xmesa->xm_visual->visinfo->visual, + 1, ZPixmap, 0, + (char *)stipple, + 32, 32, 8, 0 ); + stipple_ximage->byte_order = LSBFirst; + stipple_ximage->bitmap_bit_order = LSBFirst; + stipple_ximage->bitmap_unit = 32; +#endif + XMesaPutImage( xmesa->display, + (XMesaDrawable)xmesa->xm_buffer->stipple_pixmap, + xmesa->xm_buffer->stipple_gc, + stipple_ximage, 0, 0, 0, 0, 32, 32 ); + stipple_ximage->data = NULL; + XMesaDestroyImage( stipple_ximage ); + } + + XMesaSetStipple( xmesa->display, xmesa->xm_buffer->gc1, + xmesa->xm_buffer->stipple_pixmap ); + XMesaSetStipple( xmesa->display, xmesa->xm_buffer->gc2, + xmesa->xm_buffer->stipple_pixmap ); + fill_type = FillStippled; + } + else { + fill_type = FillSolid; + } + + XMesaSetFillStyle( xmesa->display, xmesa->xm_buffer->gc1, fill_type ); + XMesaSetFillStyle( xmesa->display, xmesa->xm_buffer->gc2, fill_type ); +} +#endif + + +#ifdef DEBUG +void +_xmesa_print_triangle_func( triangle_func triFunc ) +{ + printf("XMesa tri func = "); + if (triFunc ==smooth_TRUECOLOR_z_triangle) + printf("smooth_TRUECOLOR_z_triangle\n"); + else if (triFunc ==smooth_8A8B8G8R_z_triangle) + printf("smooth_8A8B8G8R_z_triangle\n"); + else if (triFunc ==smooth_8R8G8B_z_triangle) + printf("smooth_8R8G8B_z_triangle\n"); + else if (triFunc ==smooth_8R8G8B24_z_triangle) + printf("smooth_8R8G8B24_z_triangle\n"); + else if (triFunc ==smooth_TRUEDITHER_z_triangle) + printf("smooth_TRUEDITHER_z_triangle\n"); + else if (triFunc ==smooth_5R6G5B_z_triangle) + printf("smooth_5R6G5B_z_triangle\n"); + else if (triFunc ==smooth_DITHER_5R6G5B_z_triangle) + printf("smooth_DITHER_5R6G5B_z_triangle\n"); + else if (triFunc ==smooth_HPCR_z_triangle) + printf("smooth_HPCR_z_triangle\n"); + else if (triFunc ==smooth_DITHER8_z_triangle) + printf("smooth_DITHER8_z_triangle\n"); + else if (triFunc ==smooth_LOOKUP8_z_triangle) + printf("smooth_LOOKUP8_z_triangle\n"); + else if (triFunc ==flat_TRUECOLOR_z_triangle) + printf("flat_TRUECOLOR_z_triangle\n"); + else if (triFunc ==flat_8A8B8G8R_z_triangle) + printf("flat_8A8B8G8R_z_triangle\n"); + else if (triFunc ==flat_8R8G8B_z_triangle) + printf("flat_8R8G8B_z_triangle\n"); + else if (triFunc ==flat_8R8G8B24_z_triangle) + printf("flat_8R8G8B24_z_triangle\n"); + else if (triFunc ==flat_TRUEDITHER_z_triangle) + printf("flat_TRUEDITHER_z_triangle\n"); + else if (triFunc ==flat_5R6G5B_z_triangle) + printf("flat_5R6G5B_z_triangle\n"); + else if (triFunc ==flat_DITHER_5R6G5B_z_triangle) + printf("flat_DITHER_5R6G5B_z_triangle\n"); + else if (triFunc ==flat_HPCR_z_triangle) + printf("flat_HPCR_z_triangle\n"); + else if (triFunc ==flat_DITHER8_z_triangle) + printf("flat_DITHER8_z_triangle\n"); + else if (triFunc ==flat_LOOKUP8_z_triangle) + printf("flat_LOOKUP8_z_triangle\n"); + else if (triFunc ==smooth_TRUECOLOR_triangle) + printf("smooth_TRUECOLOR_triangle\n"); + else if (triFunc ==smooth_8A8B8G8R_triangle) + printf("smooth_8A8B8G8R_triangle\n"); + else if (triFunc ==smooth_8R8G8B_triangle) + printf("smooth_8R8G8B_triangle\n"); + else if (triFunc ==smooth_8R8G8B24_triangle) + printf("smooth_8R8G8B24_triangle\n"); + else if (triFunc ==smooth_TRUEDITHER_triangle) + printf("smooth_TRUEDITHER_triangle\n"); + else if (triFunc ==smooth_5R6G5B_triangle) + printf("smooth_5R6G5B_triangle\n"); + else if (triFunc ==smooth_DITHER_5R6G5B_triangle) + printf("smooth_DITHER_5R6G5B_triangle\n"); + else if (triFunc ==smooth_HPCR_triangle) + printf("smooth_HPCR_triangle\n"); + else if (triFunc ==smooth_DITHER8_triangle) + printf("smooth_DITHER8_triangle\n"); + else if (triFunc ==smooth_LOOKUP8_triangle) + printf("smooth_LOOKUP8_triangle\n"); + else if (triFunc ==flat_TRUECOLOR_triangle) + printf("flat_TRUECOLOR_triangle\n"); + else if (triFunc ==flat_TRUEDITHER_triangle) + printf("flat_TRUEDITHER_triangle\n"); + else if (triFunc ==flat_8A8B8G8R_triangle) + printf("flat_8A8B8G8R_triangle\n"); + else if (triFunc ==flat_8R8G8B_triangle) + printf("flat_8R8G8B_triangle\n"); + else if (triFunc ==flat_8R8G8B24_triangle) + printf("flat_8R8G8B24_triangle\n"); + else if (triFunc ==flat_5R6G5B_triangle) + printf("flat_5R6G5B_triangle\n"); + else if (triFunc ==flat_DITHER_5R6G5B_triangle) + printf("flat_DITHER_5R6G5B_triangle\n"); + else if (triFunc ==flat_HPCR_triangle) + printf("flat_HPCR_triangle\n"); + else if (triFunc ==flat_DITHER8_triangle) + printf("flat_DITHER8_triangle\n"); + else if (triFunc ==flat_LOOKUP8_triangle) + printf("flat_LOOKUP8_triangle\n"); + else + printf("???\n"); +} +#endif + + +triangle_func xmesa_get_triangle_func( GLcontext *ctx ) +{ + XMesaContext xmesa = (XMesaContext) ctx->DriverCtx; + int depth = GET_VISUAL_DEPTH(xmesa->xm_visual); + + (void) kernel1; + + if (ctx->Polygon.SmoothFlag) return NULL; + if (ctx->Texture.Enabled) return NULL; + + if (xmesa->xm_buffer->buffer==XIMAGE) { + if ( ctx->Light.ShadeModel==GL_SMOOTH + && ctx->RasterMask==DEPTH_BIT + && ctx->Depth.Func==GL_LESS + && ctx->Depth.Mask==GL_TRUE + && ctx->Visual->DepthBits == DEFAULT_SOFTWARE_DEPTH_BITS + && ctx->Polygon.StippleFlag==GL_FALSE) { + switch (xmesa->pixelformat) { + case PF_TRUECOLOR: + return smooth_TRUECOLOR_z_triangle; + case PF_8A8B8G8R: + return smooth_8A8B8G8R_z_triangle; + case PF_8R8G8B: + return smooth_8R8G8B_z_triangle; + case PF_8R8G8B24: + return smooth_8R8G8B24_z_triangle; + case PF_TRUEDITHER: + return smooth_TRUEDITHER_z_triangle; + case PF_5R6G5B: + return smooth_5R6G5B_z_triangle; + case PF_DITHER_5R6G5B: + return smooth_DITHER_5R6G5B_z_triangle; + case PF_HPCR: + return smooth_HPCR_z_triangle; + case PF_DITHER: + return (depth==8) ? smooth_DITHER8_z_triangle + : smooth_DITHER_z_triangle; + case PF_LOOKUP: + return (depth==8) ? smooth_LOOKUP8_z_triangle : NULL; + default: + return NULL; + } + } + if ( ctx->Light.ShadeModel==GL_FLAT + && ctx->RasterMask==DEPTH_BIT + && ctx->Depth.Func==GL_LESS + && ctx->Depth.Mask==GL_TRUE + && ctx->Visual->DepthBits == DEFAULT_SOFTWARE_DEPTH_BITS + && ctx->Polygon.StippleFlag==GL_FALSE) { + switch (xmesa->pixelformat) { + case PF_TRUECOLOR: + return flat_TRUECOLOR_z_triangle; + case PF_8A8B8G8R: + return flat_8A8B8G8R_z_triangle; + case PF_8R8G8B: + return flat_8R8G8B_z_triangle; + case PF_8R8G8B24: + return flat_8R8G8B24_z_triangle; + case PF_TRUEDITHER: + return flat_TRUEDITHER_z_triangle; + case PF_5R6G5B: + return flat_5R6G5B_z_triangle; + case PF_DITHER_5R6G5B: + return flat_DITHER_5R6G5B_z_triangle; + case PF_HPCR: + return flat_HPCR_z_triangle; + case PF_DITHER: + return (depth==8) ? flat_DITHER8_z_triangle + : flat_DITHER_z_triangle; + case PF_LOOKUP: + return (depth==8) ? flat_LOOKUP8_z_triangle : NULL; + default: + return NULL; + } + } + if ( ctx->RasterMask==0 /* no depth test */ + && ctx->Light.ShadeModel==GL_SMOOTH + && ctx->Polygon.StippleFlag==GL_FALSE) { + switch (xmesa->pixelformat) { + case PF_TRUECOLOR: + return smooth_TRUECOLOR_triangle; + case PF_8A8B8G8R: + return smooth_8A8B8G8R_triangle; + case PF_8R8G8B: + return smooth_8R8G8B_triangle; + case PF_8R8G8B24: + return smooth_8R8G8B24_triangle; + case PF_TRUEDITHER: + return smooth_TRUEDITHER_triangle; + case PF_5R6G5B: + return smooth_5R6G5B_triangle; + case PF_DITHER_5R6G5B: + return smooth_DITHER_5R6G5B_triangle; + case PF_HPCR: + return smooth_HPCR_triangle; + case PF_DITHER: + return (depth==8) ? smooth_DITHER8_triangle + : smooth_DITHER_triangle; + case PF_LOOKUP: + return (depth==8) ? smooth_LOOKUP8_triangle : NULL; + default: + return NULL; + } + } + + if ( ctx->RasterMask==0 /* no depth test */ + && ctx->Light.ShadeModel==GL_FLAT + && ctx->Polygon.StippleFlag==GL_FALSE) { + switch (xmesa->pixelformat) { + case PF_TRUECOLOR: + return flat_TRUECOLOR_triangle; + case PF_TRUEDITHER: + return flat_TRUEDITHER_triangle; + case PF_8A8B8G8R: + return flat_8A8B8G8R_triangle; + case PF_8R8G8B: + return flat_8R8G8B_triangle; + case PF_8R8G8B24: + return flat_8R8G8B24_triangle; + case PF_5R6G5B: + return flat_5R6G5B_triangle; + case PF_DITHER_5R6G5B: + return flat_DITHER_5R6G5B_triangle; + case PF_HPCR: + return flat_HPCR_triangle; + case PF_DITHER: + return (depth==8) ? flat_DITHER8_triangle + : flat_DITHER_triangle; + case PF_LOOKUP: + return (depth==8) ? flat_LOOKUP8_triangle : NULL; + default: + return NULL; + } + } + + return NULL; + } + else { + /* draw to pixmap */ +#if 0 + /* XXX have to disable this because X's rasterization rules + * don't match software Mesa's. This causes a buffer invariance + * test failure in the conformance tests. + * In the future, we might provide a config option to enable this. + */ + if (ctx->Light.ShadeModel==GL_FLAT && ctx->RasterMask==0) { + if (ctx->Color.DitherFlag && depth < 24) + return NULL; + setup_x_polygon_options( ctx ); + return flat_pixmap_triangle; + } +#endif + return NULL; + } +} |