diff options
Diffstat (limited to 'src/gallium/winsys/xlib/fakeglx.c')
| -rw-r--r-- | src/gallium/winsys/xlib/fakeglx.c | 3215 |
1 files changed, 0 insertions, 3215 deletions
diff --git a/src/gallium/winsys/xlib/fakeglx.c b/src/gallium/winsys/xlib/fakeglx.c deleted file mode 100644 index fd2d222c859..00000000000 --- a/src/gallium/winsys/xlib/fakeglx.c +++ /dev/null @@ -1,3215 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 7.1 - * - * Copyright (C) 1999-2007 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 is an emulation of the GLX API which allows Mesa/GLX-based programs - * to run on X servers which do not have the real GLX extension. - * - * Thanks to the contributors: - * - * Initial version: Philip Brown ([email protected]) - * Better glXGetConfig() support: Armin Liebchen ([email protected]) - * Further visual-handling refinements: Wolfram Gloger - * ([email protected]). - * - * Notes: - * Don't be fooled, stereo isn't supported yet. - */ - - - -#include "glxheader.h" -#include "glxapi.h" -#include "GL/xmesa.h" -#include "context.h" -#include "config.h" -#include "macros.h" -#include "imports.h" -#include "mtypes.h" -#include "version.h" -#include "xfonts.h" -#include "xmesaP.h" -#include "state_tracker/st_context.h" -#include "state_tracker/st_public.h" - - -#ifdef __VMS -#define _mesa_sprintf sprintf -#endif - -/* This indicates the client-side GLX API and GLX encoder version. */ -#define CLIENT_MAJOR_VERSION 1 -#define CLIENT_MINOR_VERSION 4 /* but don't have 1.3's pbuffers, etc yet */ - -/* This indicates the server-side GLX decoder version. - * GLX 1.4 indicates OpenGL 1.3 support - */ -#define SERVER_MAJOR_VERSION 1 -#define SERVER_MINOR_VERSION 4 - -/* This is appended onto the glXGetClient/ServerString version strings. */ -#define MESA_GLX_VERSION "Mesa " MESA_VERSION_STRING - -/* Who implemented this GLX? */ -#define VENDOR "Brian Paul" - -#define EXTENSIONS \ - "GLX_MESA_set_3dfx_mode " \ - "GLX_MESA_copy_sub_buffer " \ - "GLX_MESA_pixmap_colormap " \ - "GLX_MESA_release_buffers " \ - "GLX_ARB_get_proc_address " \ - "GLX_EXT_texture_from_pixmap " \ - "GLX_EXT_visual_info " \ - "GLX_EXT_visual_rating " \ - /*"GLX_SGI_video_sync "*/ \ - "GLX_SGIX_fbconfig " \ - "GLX_SGIX_pbuffer " - -/* - * Our fake GLX context will contain a "real" GLX context and an XMesa context. - * - * Note that a pointer to a __GLXcontext is a pointer to a fake_glx_context, - * and vice versa. - * - * We really just need this structure in order to make the libGL functions - * glXGetCurrentContext(), glXGetCurrentDrawable() and glXGetCurrentDisplay() - * work correctly. - */ -struct fake_glx_context { - __GLXcontext glxContext; /* this MUST be first! */ - XMesaContext xmesaContext; -}; - - - -/**********************************************************************/ -/*** GLX Visual Code ***/ -/**********************************************************************/ - -#define DONT_CARE -1 - - -static XMesaVisual *VisualTable = NULL; -static int NumVisuals = 0; - - -/* - * This struct and some code fragments borrowed - * from Mark Kilgard's GLUT library. - */ -typedef struct _OverlayInfo { - /* Avoid 64-bit portability problems by being careful to use - longs due to the way XGetWindowProperty is specified. Note - that these parameters are passed as CARD32s over X - protocol. */ - unsigned long overlay_visual; - long transparent_type; - long value; - long layer; -} OverlayInfo; - - - -/* Macro to handle c_class vs class field name in XVisualInfo struct */ -#if defined(__cplusplus) || defined(c_plusplus) -#define CLASS c_class -#else -#define CLASS class -#endif - - - -/* - * Test if the given XVisualInfo is usable for Mesa rendering. - */ -static GLboolean -is_usable_visual( XVisualInfo *vinfo ) -{ - switch (vinfo->CLASS) { - case StaticGray: - case GrayScale: - /* Any StaticGray/GrayScale visual works in RGB or CI mode */ - return GL_TRUE; - case StaticColor: - case PseudoColor: - /* Any StaticColor/PseudoColor visual of at least 4 bits */ - if (vinfo->depth>=4) { - return GL_TRUE; - } - else { - return GL_FALSE; - } - case TrueColor: - case DirectColor: - /* Any depth of TrueColor or DirectColor works in RGB mode */ - return GL_TRUE; - default: - /* This should never happen */ - return GL_FALSE; - } -} - - - -/** - * Get an array OverlayInfo records for specified screen. - * \param dpy the display - * \param screen screen number - * \param numOverlays returns numver of OverlayInfo records - * \return pointer to OverlayInfo array, free with XFree() - */ -static OverlayInfo * -GetOverlayInfo(Display *dpy, int screen, int *numOverlays) -{ - Atom overlayVisualsAtom; - Atom actualType; - Status status; - unsigned char *ovInfo; - unsigned long sizeData, bytesLeft; - int actualFormat; - - /* - * The SERVER_OVERLAY_VISUALS property on the root window contains - * a list of overlay visuals. Get that list now. - */ - overlayVisualsAtom = XInternAtom(dpy,"SERVER_OVERLAY_VISUALS", True); - if (overlayVisualsAtom == None) { - return 0; - } - - status = XGetWindowProperty(dpy, RootWindow(dpy, screen), - overlayVisualsAtom, 0L, (long) 10000, False, - overlayVisualsAtom, &actualType, &actualFormat, - &sizeData, &bytesLeft, - &ovInfo); - - if (status != Success || actualType != overlayVisualsAtom || - actualFormat != 32 || sizeData < 4) { - /* something went wrong */ - XFree((void *) ovInfo); - *numOverlays = 0; - return NULL; - } - - *numOverlays = sizeData / 4; - return (OverlayInfo *) ovInfo; -} - - - -/** - * Return the level (overlay, normal, underlay) of a given XVisualInfo. - * Input: dpy - the X display - * vinfo - the XVisualInfo to test - * Return: level of the visual: - * 0 = normal planes - * >0 = overlay planes - * <0 = underlay planes - */ -static int -level_of_visual( Display *dpy, XVisualInfo *vinfo ) -{ - OverlayInfo *overlay_info; - int numOverlaysPerScreen, i; - - overlay_info = GetOverlayInfo(dpy, vinfo->screen, &numOverlaysPerScreen); - if (!overlay_info) { - return 0; - } - - /* search the overlay visual list for the visual ID of interest */ - for (i = 0; i < numOverlaysPerScreen; i++) { - const OverlayInfo *ov = overlay_info + i; - if (ov->overlay_visual == vinfo->visualid) { - /* found the visual */ - if (/*ov->transparent_type==1 &&*/ ov->layer!=0) { - int level = ov->layer; - XFree((void *) overlay_info); - return level; - } - else { - XFree((void *) overlay_info); - return 0; - } - } - } - - /* The visual ID was not found in the overlay list. */ - XFree((void *) overlay_info); - return 0; -} - - - - -/* - * Given an XVisualInfo and RGB, Double, and Depth buffer flags, save the - * configuration in our list of GLX visuals. - */ -static XMesaVisual -save_glx_visual( Display *dpy, XVisualInfo *vinfo, - GLboolean rgbFlag, GLboolean alphaFlag, GLboolean dbFlag, - GLboolean stereoFlag, - GLint depth_size, GLint stencil_size, - GLint accumRedSize, GLint accumGreenSize, - GLint accumBlueSize, GLint accumAlphaSize, - GLint level, GLint numAuxBuffers ) -{ - GLboolean ximageFlag = GL_TRUE; - XMesaVisual xmvis; - GLint i; - GLboolean comparePointers; - - if (dbFlag) { - /* Check if the MESA_BACK_BUFFER env var is set */ - char *backbuffer = _mesa_getenv("MESA_BACK_BUFFER"); - if (backbuffer) { - if (backbuffer[0]=='p' || backbuffer[0]=='P') { - ximageFlag = GL_FALSE; - } - else if (backbuffer[0]=='x' || backbuffer[0]=='X') { - ximageFlag = GL_TRUE; - } - else { - _mesa_warning(NULL, "Mesa: invalid value for MESA_BACK_BUFFER environment variable, using an XImage."); - } - } - } - - if (stereoFlag) { - /* stereo not supported */ - return NULL; - } - - if (stencil_size > 0 && depth_size > 0) - depth_size = 24; - - /* Comparing IDs uses less memory but sometimes fails. */ - /* XXX revisit this after 3.0 is finished. */ - if (_mesa_getenv("MESA_GLX_VISUAL_HACK")) - comparePointers = GL_TRUE; - else - comparePointers = GL_FALSE; - - /* Force the visual to have an alpha channel */ - if (rgbFlag && _mesa_getenv("MESA_GLX_FORCE_ALPHA")) - alphaFlag = GL_TRUE; - - /* First check if a matching visual is already in the list */ - for (i=0; i<NumVisuals; i++) { - XMesaVisual v = VisualTable[i]; - if (v->display == dpy - && v->mesa_visual.level == level - && v->mesa_visual.numAuxBuffers == numAuxBuffers - && v->ximage_flag == ximageFlag - && v->mesa_visual.rgbMode == rgbFlag - && v->mesa_visual.doubleBufferMode == dbFlag - && v->mesa_visual.stereoMode == stereoFlag - && (v->mesa_visual.alphaBits > 0) == alphaFlag - && (v->mesa_visual.depthBits >= depth_size || depth_size == 0) - && (v->mesa_visual.stencilBits >= stencil_size || stencil_size == 0) - && (v->mesa_visual.accumRedBits >= accumRedSize || accumRedSize == 0) - && (v->mesa_visual.accumGreenBits >= accumGreenSize || accumGreenSize == 0) - && (v->mesa_visual.accumBlueBits >= accumBlueSize || accumBlueSize == 0) - && (v->mesa_visual.accumAlphaBits >= accumAlphaSize || accumAlphaSize == 0)) { - /* now either compare XVisualInfo pointers or visual IDs */ - if ((!comparePointers && v->visinfo->visualid == vinfo->visualid) - || (comparePointers && v->vishandle == vinfo)) { - return v; - } - } - } - - /* Create a new visual and add it to the list. */ - - xmvis = XMesaCreateVisual( dpy, vinfo, rgbFlag, alphaFlag, dbFlag, - stereoFlag, ximageFlag, - depth_size, stencil_size, - accumRedSize, accumBlueSize, - accumBlueSize, accumAlphaSize, 0, level, - GLX_NONE_EXT ); - if (xmvis) { - /* 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(). - */ - xmvis->vishandle = vinfo; - /* Allocate more space for additional visual */ - VisualTable = (XMesaVisual *) _mesa_realloc( VisualTable, - sizeof(XMesaVisual) * NumVisuals, - sizeof(XMesaVisual) * (NumVisuals + 1)); - /* add xmvis to the list */ - VisualTable[NumVisuals] = xmvis; - NumVisuals++; - /* XXX minor hack, because XMesaCreateVisual doesn't support an - * aux buffers parameter. - */ - xmvis->mesa_visual.numAuxBuffers = numAuxBuffers; - } - return xmvis; -} - - -/** - * Return the default number of bits for the Z buffer. - * If defined, use the MESA_GLX_DEPTH_BITS env var value. - * Otherwise, use the DEFAULT_SOFTWARE_DEPTH_BITS constant. - * XXX probably do the same thing for stencil, accum, etc. - */ -static GLint -default_depth_bits(void) -{ - int zBits; - const char *zEnv = _mesa_getenv("MESA_GLX_DEPTH_BITS"); - if (zEnv) - zBits = _mesa_atoi(zEnv); - else - zBits = DEFAULT_SOFTWARE_DEPTH_BITS; - return zBits; -} - -static GLint -default_alpha_bits(void) -{ - int aBits; - const char *aEnv = _mesa_getenv("MESA_GLX_ALPHA_BITS"); - if (aEnv) - aBits = _mesa_atoi(aEnv); - else - aBits = 0; - return aBits; -} - -static GLint -default_accum_bits(void) -{ - return 16; -} - - - -/* - * Create a GLX visual from a regular XVisualInfo. - * This is called when Fake GLX is given an XVisualInfo which wasn't - * returned by glXChooseVisual. Since this is the first time we're - * considering this visual we'll take a guess at reasonable values - * for depth buffer size, stencil size, accum size, etc. - * This is the best we can do with a client-side emulation of GLX. - */ -static XMesaVisual -create_glx_visual( Display *dpy, XVisualInfo *visinfo ) -{ - int vislevel; - GLint zBits = default_depth_bits(); - GLint accBits = default_accum_bits(); - GLboolean alphaFlag = default_alpha_bits() > 0; - - vislevel = level_of_visual( dpy, visinfo ); - if (vislevel) { - /* Configure this visual as a CI, single-buffered overlay */ - return save_glx_visual( dpy, visinfo, - GL_FALSE, /* rgb */ - GL_FALSE, /* alpha */ - GL_FALSE, /* double */ - GL_FALSE, /* stereo */ - 0, /* depth bits */ - 0, /* stencil bits */ - 0,0,0,0, /* accum bits */ - vislevel, /* level */ - 0 /* numAux */ - ); - } - else if (is_usable_visual( visinfo )) { - if (_mesa_getenv("MESA_GLX_FORCE_CI")) { - /* Configure this visual as a COLOR INDEX visual. */ - return save_glx_visual( dpy, visinfo, - GL_FALSE, /* rgb */ - GL_FALSE, /* alpha */ - GL_TRUE, /* double */ - GL_FALSE, /* stereo */ - zBits, - STENCIL_BITS, - 0, 0, 0, 0, /* accum bits */ - 0, /* level */ - 0 /* numAux */ - ); - } - else { - /* Configure this visual as RGB, double-buffered, depth-buffered. */ - /* This is surely wrong for some people's needs but what else */ - /* can be done? They should use glXChooseVisual(). */ - return save_glx_visual( dpy, visinfo, - GL_TRUE, /* rgb */ - alphaFlag, /* alpha */ - GL_TRUE, /* double */ - GL_FALSE, /* stereo */ - zBits, - STENCIL_BITS, - accBits, /* r */ - accBits, /* g */ - accBits, /* b */ - accBits, /* a */ - 0, /* level */ - 0 /* numAux */ - ); - } - } - else { - _mesa_warning(NULL, "Mesa: error in glXCreateContext: bad visual\n"); - return NULL; - } -} - - - -/* - * Find the GLX visual associated with an XVisualInfo. - */ -static XMesaVisual -find_glx_visual( Display *dpy, XVisualInfo *vinfo ) -{ - int i; - - /* try to match visual id */ - for (i=0;i<NumVisuals;i++) { - if (VisualTable[i]->display==dpy - && VisualTable[i]->visinfo->visualid == vinfo->visualid) { - return VisualTable[i]; - } - } - - /* if that fails, try to match pointers */ - for (i=0;i<NumVisuals;i++) { - if (VisualTable[i]->display==dpy && VisualTable[i]->vishandle==vinfo) { - return VisualTable[i]; - } - } - - return NULL; -} - - - -/** - * Return the transparent pixel value for a GLX visual. - * Input: glxvis - the glx_visual - * Return: a pixel value or -1 if no transparent pixel - */ -static int -transparent_pixel( XMesaVisual glxvis ) -{ - Display *dpy = glxvis->display; - XVisualInfo *vinfo = glxvis->visinfo; - OverlayInfo *overlay_info; - int numOverlaysPerScreen, i; - - overlay_info = GetOverlayInfo(dpy, vinfo->screen, &numOverlaysPerScreen); - if (!overlay_info) { - return -1; - } - - for (i = 0; i < numOverlaysPerScreen; i++) { - const OverlayInfo *ov = overlay_info + i; - if (ov->overlay_visual == vinfo->visualid) { - /* found it! */ - if (ov->transparent_type == 0) { - /* type 0 indicates no transparency */ - XFree((void *) overlay_info); - return -1; - } - else { - /* ov->value is the transparent pixel */ - XFree((void *) overlay_info); - return ov->value; - } - } - } - - /* The visual ID was not found in the overlay list. */ - XFree((void *) overlay_info); - return -1; -} - - - -/** - * Try to get an X visual which matches the given arguments. - */ -static XVisualInfo * -get_visual( Display *dpy, int scr, unsigned int depth, int xclass ) -{ - XVisualInfo temp, *vis; - long mask; - int n; - unsigned int default_depth; - int default_class; - - mask = VisualScreenMask | VisualDepthMask | VisualClassMask; - temp.screen = scr; - temp.depth = depth; - temp.CLASS = xclass; - - default_depth = DefaultDepth(dpy,scr); - default_class = DefaultVisual(dpy,scr)->CLASS; - - if (depth==default_depth && xclass==default_class) { - /* try to get root window's visual */ - temp.visualid = DefaultVisual(dpy,scr)->visualid; - mask |= VisualIDMask; - } - - vis = XGetVisualInfo( dpy, mask, &temp, &n ); - - /* In case bits/pixel > 24, make sure color channels are still <=8 bits. - * An SGI Infinite Reality system, for example, can have 30bpp pixels: - * 10 bits per color channel. Mesa's limited to a max of 8 bits/channel. - */ - if (vis && depth > 24 && (xclass==TrueColor || xclass==DirectColor)) { - if (_mesa_bitcount((GLuint) vis->red_mask ) <= 8 && - _mesa_bitcount((GLuint) vis->green_mask) <= 8 && - _mesa_bitcount((GLuint) vis->blue_mask ) <= 8) { - return vis; - } - else { - XFree((void *) vis); - return NULL; - } - } - - return vis; -} - - - -/* - * Retrieve the value of the given environment variable and find - * the X visual which matches it. - * Input: dpy - the display - * screen - the screen number - * varname - the name of the environment variable - * Return: an XVisualInfo pointer to NULL if error. - */ -static XVisualInfo * -get_env_visual(Display *dpy, int scr, const char *varname) -{ - char value[100], type[100]; - int depth, xclass = -1; - XVisualInfo *vis; - - if (!_mesa_getenv( varname )) { - return NULL; - } - - _mesa_strncpy( value, _mesa_getenv(varname), 100 ); - value[99] = 0; - - sscanf( value, "%s %d", type, &depth ); - - if (_mesa_strcmp(type,"TrueColor")==0) xclass = TrueColor; - else if (_mesa_strcmp(type,"DirectColor")==0) xclass = DirectColor; - else if (_mesa_strcmp(type,"PseudoColor")==0) xclass = PseudoColor; - else if (_mesa_strcmp(type,"StaticColor")==0) xclass = StaticColor; - else if (_mesa_strcmp(type,"GrayScale")==0) xclass = GrayScale; - else if (_mesa_strcmp(type,"StaticGray")==0) xclass = StaticGray; - - if (xclass>-1 && depth>0) { - vis = get_visual( dpy, scr, depth, xclass ); - if (vis) { - return vis; - } - } - - _mesa_warning(NULL, "GLX unable to find visual class=%s, depth=%d.", - type, depth); - - return NULL; -} - - - -/* - * Select an X visual which satisfies the RGBA/CI flag and minimum depth. - * Input: dpy, screen - X display and screen number - * rgba - GL_TRUE = RGBA mode, GL_FALSE = CI mode - * min_depth - minimum visual depth - * preferred_class - preferred GLX visual class or DONT_CARE - * Return: pointer to an XVisualInfo or NULL. - */ -static XVisualInfo * -choose_x_visual( Display *dpy, int screen, GLboolean rgba, int min_depth, - int preferred_class ) -{ - XVisualInfo *vis; - int xclass, visclass = 0; - int depth; - - if (rgba) { - Atom hp_cr_maps = XInternAtom(dpy, "_HP_RGB_SMOOTH_MAP_LIST", True); - /* First see if the MESA_RGB_VISUAL env var is defined */ - vis = get_env_visual( dpy, screen, "MESA_RGB_VISUAL" ); - if (vis) { - return vis; - } - /* Otherwise, search for a suitable visual */ - if (preferred_class==DONT_CARE) { - for (xclass=0;xclass<6;xclass++) { - switch (xclass) { - case 0: visclass = TrueColor; break; - case 1: visclass = DirectColor; break; - case 2: visclass = PseudoColor; break; - case 3: visclass = StaticColor; break; - case 4: visclass = GrayScale; break; - case 5: visclass = StaticGray; break; - } - if (min_depth==0) { - /* start with shallowest */ - for (depth=0;depth<=32;depth++) { - if (visclass==TrueColor && depth==8 && !hp_cr_maps) { - /* Special case: try to get 8-bit PseudoColor before */ - /* 8-bit TrueColor */ - vis = get_visual( dpy, screen, 8, PseudoColor ); - if (vis) { - return vis; - } - } - vis = get_visual( dpy, screen, depth, visclass ); - if (vis) { - return vis; - } - } - } - else { - /* start with deepest */ - for (depth=32;depth>=min_depth;depth--) { - if (visclass==TrueColor && depth==8 && !hp_cr_maps) { - /* Special case: try to get 8-bit PseudoColor before */ - /* 8-bit TrueColor */ - vis = get_visual( dpy, screen, 8, PseudoColor ); - if (vis) { - return vis; - } - } - vis = get_visual( dpy, screen, depth, visclass ); - if (vis) { - return vis; - } - } - } - } - } - else { - /* search for a specific visual class */ - switch (preferred_class) { - case GLX_TRUE_COLOR_EXT: visclass = TrueColor; break; - case GLX_DIRECT_COLOR_EXT: visclass = DirectColor; break; - case GLX_PSEUDO_COLOR_EXT: visclass = PseudoColor; break; - case GLX_STATIC_COLOR_EXT: visclass = StaticColor; break; - case GLX_GRAY_SCALE_EXT: visclass = GrayScale; break; - case GLX_STATIC_GRAY_EXT: visclass = StaticGray; break; - default: return NULL; - } - if (min_depth==0) { - /* start with shallowest */ - for (depth=0;depth<=32;depth++) { - vis = get_visual( dpy, screen, depth, visclass ); - if (vis) { - return vis; - } - } - } - else { - /* start with deepest */ - for (depth=32;depth>=min_depth;depth--) { - vis = get_visual( dpy, screen, depth, visclass ); - if (vis) { - return vis; - } - } - } - } - } - else { - /* First see if the MESA_CI_VISUAL env var is defined */ - vis = get_env_visual( dpy, screen, "MESA_CI_VISUAL" ); - if (vis) { - return vis; - } - /* Otherwise, search for a suitable visual, starting with shallowest */ - if (preferred_class==DONT_CARE) { - for (xclass=0;xclass<4;xclass++) { - switch (xclass) { - case 0: visclass = PseudoColor; break; - case 1: visclass = StaticColor; break; - case 2: visclass = GrayScale; break; - case 3: visclass = StaticGray; break; - } - /* try 8-bit up through 16-bit */ - for (depth=8;depth<=16;depth++) { - vis = get_visual( dpy, screen, depth, visclass ); - if (vis) { - return vis; - } - } - /* try min_depth up to 8-bit */ - for (depth=min_depth;depth<8;depth++) { - vis = get_visual( dpy, screen, depth, visclass ); - if (vis) { - return vis; - } - } - } - } - else { - /* search for a specific visual class */ - switch (preferred_class) { - case GLX_TRUE_COLOR_EXT: visclass = TrueColor; break; - case GLX_DIRECT_COLOR_EXT: visclass = DirectColor; break; - case GLX_PSEUDO_COLOR_EXT: visclass = PseudoColor; break; - case GLX_STATIC_COLOR_EXT: visclass = StaticColor; break; - case GLX_GRAY_SCALE_EXT: visclass = GrayScale; break; - case GLX_STATIC_GRAY_EXT: visclass = StaticGray; break; - default: return NULL; - } - /* try 8-bit up through 16-bit */ - for (depth=8;depth<=16;depth++) { - vis = get_visual( dpy, screen, depth, visclass ); - if (vis) { - return vis; - } - } - /* try min_depth up to 8-bit */ - for (depth=min_depth;depth<8;depth++) { - vis = get_visual( dpy, screen, depth, visclass ); - if (vis) { - return vis; - } - } - } - } - - /* didn't find a visual */ - return NULL; -} - - - -/* - * Find the deepest X over/underlay visual of at least min_depth. - * Input: dpy, screen - X display and screen number - * level - the over/underlay level - * trans_type - transparent pixel type: GLX_NONE_EXT, - * GLX_TRANSPARENT_RGB_EXT, GLX_TRANSPARENT_INDEX_EXT, - * or DONT_CARE - * trans_value - transparent pixel value or DONT_CARE - * min_depth - minimum visual depth - * preferred_class - preferred GLX visual class or DONT_CARE - * Return: pointer to an XVisualInfo or NULL. - */ -static XVisualInfo * -choose_x_overlay_visual( Display *dpy, int scr, GLboolean rgbFlag, - int level, int trans_type, int trans_value, - int min_depth, int preferred_class ) -{ - OverlayInfo *overlay_info; - int numOverlaysPerScreen; - int i; - XVisualInfo *deepvis; - int deepest; - - /*DEBUG int tt, tv; */ - - switch (preferred_class) { - case GLX_TRUE_COLOR_EXT: preferred_class = TrueColor; break; - case GLX_DIRECT_COLOR_EXT: preferred_class = DirectColor; break; - case GLX_PSEUDO_COLOR_EXT: preferred_class = PseudoColor; break; - case GLX_STATIC_COLOR_EXT: preferred_class = StaticColor; break; - case GLX_GRAY_SCALE_EXT: preferred_class = GrayScale; break; - case GLX_STATIC_GRAY_EXT: preferred_class = StaticGray; break; - default: preferred_class = DONT_CARE; - } - - overlay_info = GetOverlayInfo(dpy, scr, &numOverlaysPerScreen); - if (!overlay_info) { - return NULL; - } - - /* Search for the deepest overlay which satisifies all criteria. */ - deepest = min_depth; - deepvis = NULL; - - for (i = 0; i < numOverlaysPerScreen; i++) { - const OverlayInfo *ov = overlay_info + i; - XVisualInfo *vislist, vistemplate; - int count; - - if (ov->layer!=level) { - /* failed overlay level criteria */ - continue; - } - if (!(trans_type==DONT_CARE - || (trans_type==GLX_TRANSPARENT_INDEX_EXT - && ov->transparent_type>0) - || (trans_type==GLX_NONE_EXT && ov->transparent_type==0))) { - /* failed transparent pixel type criteria */ - continue; - } - if (trans_value!=DONT_CARE && trans_value!=ov->value) { - /* failed transparent pixel value criteria */ - continue; - } - - /* get XVisualInfo and check the depth */ - vistemplate.visualid = ov->overlay_visual; - vistemplate.screen = scr; - vislist = XGetVisualInfo( dpy, VisualIDMask | VisualScreenMask, - &vistemplate, &count ); - - if (count!=1) { - /* something went wrong */ - continue; - } - if (preferred_class!=DONT_CARE && preferred_class!=vislist->CLASS) { - /* wrong visual class */ - continue; - } - - /* if RGB was requested, make sure we have True/DirectColor */ - if (rgbFlag && vislist->CLASS != TrueColor - && vislist->CLASS != DirectColor) - continue; - - /* if CI was requested, make sure we have a color indexed visual */ - if (!rgbFlag - && (vislist->CLASS == TrueColor || vislist->CLASS == DirectColor)) - continue; - - if (deepvis==NULL || vislist->depth > deepest) { - /* YES! found a satisfactory visual */ - if (deepvis) { - XFree( deepvis ); - } - deepest = vislist->depth; - deepvis = vislist; - /* DEBUG tt = ov->transparent_type;*/ - /* DEBUG tv = ov->value; */ - } - } - -/*DEBUG - if (deepvis) { - printf("chose 0x%x: layer=%d depth=%d trans_type=%d trans_value=%d\n", - deepvis->visualid, level, deepvis->depth, tt, tv ); - } -*/ - return deepvis; -} - - -/**********************************************************************/ -/*** Display-related functions ***/ -/**********************************************************************/ - - -/** - * Free all XMesaVisuals which are associated with the given display. - */ -static void -destroy_visuals_on_display(Display *dpy) -{ - int i; - for (i = 0; i < NumVisuals; i++) { - if (VisualTable[i]->display == dpy) { - /* remove this visual */ - int j; - free(VisualTable[i]); - for (j = i; j < NumVisuals - 1; j++) - VisualTable[j] = VisualTable[j + 1]; - NumVisuals--; - } - } -} - - -/** - * Called from XCloseDisplay() to let us free our display-related data. - */ -static int -close_display_callback(Display *dpy, XExtCodes *codes) -{ - destroy_visuals_on_display(dpy); - xmesa_destroy_buffers_on_display(dpy); - return 0; -} - - -/** - * Look for the named extension on given display and return a pointer - * to the _XExtension data, or NULL if extension not found. - */ -static _XExtension * -lookup_extension(Display *dpy, const char *extName) -{ - _XExtension *ext; - for (ext = dpy->ext_procs; ext; ext = ext->next) { - if (ext->name && strcmp(ext->name, extName) == 0) { - return ext; - } - } - return NULL; -} - - -/** - * Whenever we're given a new Display pointer, call this function to - * register our close_display_callback function. - */ -static void -register_with_display(Display *dpy) -{ - const char *extName = "MesaGLX"; - _XExtension *ext; - - ext = lookup_extension(dpy, extName); - if (!ext) { - XExtCodes *c = XAddExtension(dpy); - ext = dpy->ext_procs; /* new extension is at head of list */ - assert(c->extension == ext->codes.extension); - ext->name = _mesa_strdup(extName); - ext->close_display = close_display_callback; - } -} - - -/**********************************************************************/ -/*** Begin Fake GLX API Functions ***/ -/**********************************************************************/ - - -/** - * Helper used by glXChooseVisual and glXChooseFBConfig. - * The fbConfig parameter must be GL_FALSE for the former and GL_TRUE for - * the later. - * In either case, the attribute list is terminated with the value 'None'. - */ -static XMesaVisual -choose_visual( Display *dpy, int screen, const int *list, GLboolean fbConfig ) -{ - const GLboolean rgbModeDefault = fbConfig; - const int *parselist; - XVisualInfo *vis; - int min_ci = 0; - int min_red=0, min_green=0, min_blue=0; - GLboolean rgb_flag = rgbModeDefault; - GLboolean alpha_flag = GL_FALSE; - GLboolean double_flag = GL_FALSE; - GLboolean stereo_flag = GL_FALSE; - GLint depth_size = 0; - GLint stencil_size = 0; - GLint accumRedSize = 0; - GLint accumGreenSize = 0; - GLint accumBlueSize = 0; - GLint accumAlphaSize = 0; - int level = 0; - int visual_type = DONT_CARE; - int trans_type = DONT_CARE; - int trans_value = DONT_CARE; - GLint caveat = DONT_CARE; - XMesaVisual xmvis = NULL; - int desiredVisualID = -1; - int numAux = 0; - - parselist = list; - - while (*parselist) { - - switch (*parselist) { - case GLX_USE_GL: - if (fbConfig) { - /* invalid token */ - return NULL; - } - else { - /* skip */ - parselist++; - } - break; - case GLX_BUFFER_SIZE: - parselist++; - min_ci = *parselist++; - break; - case GLX_LEVEL: - parselist++; - level = *parselist++; - break; - case GLX_RGBA: - if (fbConfig) { - /* invalid token */ - return NULL; - } - else { - rgb_flag = GL_TRUE; - parselist++; - } - break; - case GLX_DOUBLEBUFFER: - parselist++; - if (fbConfig) { - double_flag = *parselist++; - } - else { - double_flag = GL_TRUE; - } - break; - case GLX_STEREO: - parselist++; - if (fbConfig) { - stereo_flag = *parselist++; - } - else { - stereo_flag = GL_TRUE; - } - break; - case GLX_AUX_BUFFERS: - parselist++; - numAux = *parselist++; - if (numAux > MAX_AUX_BUFFERS) - return NULL; - break; - case GLX_RED_SIZE: - parselist++; - min_red = *parselist++; - break; - case GLX_GREEN_SIZE: - parselist++; - min_green = *parselist++; - break; - case GLX_BLUE_SIZE: - parselist++; - min_blue = *parselist++; - break; - case GLX_ALPHA_SIZE: - parselist++; - { - GLint size = *parselist++; - alpha_flag = size ? GL_TRUE : GL_FALSE; - } - break; - case GLX_DEPTH_SIZE: - parselist++; - depth_size = *parselist++; - break; - case GLX_STENCIL_SIZE: - parselist++; - stencil_size = *parselist++; - break; - case GLX_ACCUM_RED_SIZE: - parselist++; - { - GLint size = *parselist++; - accumRedSize = MAX2( accumRedSize, size ); - } - break; - case GLX_ACCUM_GREEN_SIZE: - parselist++; - { - GLint size = *parselist++; - accumGreenSize = MAX2( accumGreenSize, size ); - } - break; - case GLX_ACCUM_BLUE_SIZE: - parselist++; - { - GLint size = *parselist++; - accumBlueSize = MAX2( accumBlueSize, size ); - } - break; - case GLX_ACCUM_ALPHA_SIZE: - parselist++; - { - GLint size = *parselist++; - accumAlphaSize = MAX2( accumAlphaSize, size ); - } - break; - - /* - * GLX_EXT_visual_info extension - */ - case GLX_X_VISUAL_TYPE_EXT: - parselist++; - visual_type = *parselist++; - break; - case GLX_TRANSPARENT_TYPE_EXT: - parselist++; - trans_type = *parselist++; - break; - case GLX_TRANSPARENT_INDEX_VALUE_EXT: - parselist++; - trans_value = *parselist++; - break; - case GLX_TRANSPARENT_RED_VALUE_EXT: - case GLX_TRANSPARENT_GREEN_VALUE_EXT: - case GLX_TRANSPARENT_BLUE_VALUE_EXT: - case GLX_TRANSPARENT_ALPHA_VALUE_EXT: - /* ignore */ - parselist++; - parselist++; - break; - - /* - * GLX_EXT_visual_info extension - */ - case GLX_VISUAL_CAVEAT_EXT: - parselist++; - caveat = *parselist++; /* ignored for now */ - break; - - /* - * GLX_ARB_multisample - */ - case GLX_SAMPLE_BUFFERS_ARB: - /* ms not supported */ - return NULL; - case GLX_SAMPLES_ARB: - /* ms not supported */ - return NULL; - - /* - * FBConfig attribs. - */ - case GLX_RENDER_TYPE: - if (!fbConfig) - return NULL; - parselist++; - if (*parselist == GLX_RGBA_BIT) { - rgb_flag = GL_TRUE; - } - else if (*parselist == GLX_COLOR_INDEX_BIT) { - rgb_flag = GL_FALSE; - } - else if (*parselist == 0) { - rgb_flag = GL_TRUE; - } - parselist++; - break; - case GLX_DRAWABLE_TYPE: - if (!fbConfig) - return NULL; - parselist++; - if (*parselist & ~(GLX_WINDOW_BIT | GLX_PIXMAP_BIT | GLX_PBUFFER_BIT)) { - return NULL; /* bad bit */ - } - parselist++; - break; - case GLX_FBCONFIG_ID: - if (!fbConfig) - return NULL; - parselist++; - desiredVisualID = *parselist++; - break; - case GLX_X_RENDERABLE: - if (!fbConfig) - return NULL; - parselist += 2; - /* ignore */ - break; - -#ifdef GLX_EXT_texture_from_pixmap - case GLX_BIND_TO_TEXTURE_RGB_EXT: - parselist++; /*skip*/ - break; - case GLX_BIND_TO_TEXTURE_RGBA_EXT: - parselist++; /*skip*/ - break; - case GLX_BIND_TO_MIPMAP_TEXTURE_EXT: - parselist++; /*skip*/ - break; - case GLX_BIND_TO_TEXTURE_TARGETS_EXT: - parselist++; - if (*parselist & ~(GLX_TEXTURE_1D_BIT_EXT | - GLX_TEXTURE_2D_BIT_EXT | - GLX_TEXTURE_RECTANGLE_BIT_EXT)) { - /* invalid bit */ - return NULL; - } - break; - case GLX_Y_INVERTED_EXT: - parselist++; /*skip*/ - break; -#endif - - case None: - /* end of list */ - break; - - default: - /* undefined attribute */ - _mesa_warning(NULL, "unexpected attrib 0x%x in choose_visual()", - *parselist); - return NULL; - } - } - - (void) caveat; - - /* - * Since we're only simulating the GLX extension this function will never - * find any real GL visuals. Instead, all we can do is try to find an RGB - * or CI visual of appropriate depth. Other requested attributes such as - * double buffering, depth buffer, etc. will be associated with the X - * visual and stored in the VisualTable[]. - */ - if (desiredVisualID != -1) { - /* try to get a specific visual, by visualID */ - XVisualInfo temp; - int n; - temp.visualid = desiredVisualID; - temp.screen = screen; - vis = XGetVisualInfo(dpy, VisualIDMask | VisualScreenMask, &temp, &n); - if (vis) { - /* give the visual some useful GLX attributes */ - double_flag = GL_TRUE; - if (vis->depth > 8) - rgb_flag = GL_TRUE; - depth_size = default_depth_bits(); - stencil_size = STENCIL_BITS; - /* XXX accum??? */ - } - } - else if (level==0) { - /* normal color planes */ - if (rgb_flag) { - /* Get an RGB visual */ - int min_rgb = min_red + min_green + min_blue; - if (min_rgb>1 && min_rgb<8) { - /* a special case to be sure we can get a monochrome visual */ - min_rgb = 1; - } - vis = choose_x_visual( dpy, screen, rgb_flag, min_rgb, visual_type ); - } - else { - /* Get a color index visual */ - vis = choose_x_visual( dpy, screen, rgb_flag, min_ci, visual_type ); - accumRedSize = accumGreenSize = accumBlueSize = accumAlphaSize = 0; - } - } - else { - /* over/underlay planes */ - if (rgb_flag) { - /* rgba overlay */ - int min_rgb = min_red + min_green + min_blue; - if (min_rgb>1 && min_rgb<8) { - /* a special case to be sure we can get a monochrome visual */ - min_rgb = 1; - } - vis = choose_x_overlay_visual( dpy, screen, rgb_flag, level, - trans_type, trans_value, min_rgb, visual_type ); - } - else { - /* color index overlay */ - vis = choose_x_overlay_visual( dpy, screen, rgb_flag, level, - trans_type, trans_value, min_ci, visual_type ); - } - } - - if (vis) { - /* Note: we're not exactly obeying the glXChooseVisual rules here. - * When GLX_DEPTH_SIZE = 1 is specified we're supposed to choose the - * largest depth buffer size, which is 32bits/value. Instead, we - * return 16 to maintain performance with earlier versions of Mesa. - */ - if (stencil_size > 0) - depth_size = 24; /* if Z and stencil, always use 24+8 format */ - else if (depth_size > 24) - depth_size = 32; - else if (depth_size > 16) - depth_size = 24; - else if (depth_size > 0) { - depth_size = default_depth_bits(); - } - - if (!alpha_flag) { - alpha_flag = default_alpha_bits() > 0; - } - - /* we only support one size of stencil and accum buffers. */ - if (stencil_size > 0) - stencil_size = STENCIL_BITS; - if (accumRedSize > 0 || accumGreenSize > 0 || accumBlueSize > 0 || - accumAlphaSize > 0) { - accumRedSize = - accumGreenSize = - accumBlueSize = default_accum_bits(); - accumAlphaSize = alpha_flag ? accumRedSize : 0; - } - - xmvis = save_glx_visual( dpy, vis, rgb_flag, alpha_flag, double_flag, - stereo_flag, depth_size, stencil_size, - accumRedSize, accumGreenSize, - accumBlueSize, accumAlphaSize, level, numAux ); - } - - return xmvis; -} - - -static XVisualInfo * -Fake_glXChooseVisual( Display *dpy, int screen, int *list ) -{ - XMesaVisual xmvis; - - /* register ourselves as an extension on this display */ - register_with_display(dpy); - - xmvis = choose_visual(dpy, screen, list, GL_FALSE); - if (xmvis) { -#if 0 - return xmvis->vishandle; -#else - /* create a new vishandle - the cached one may be stale */ - xmvis->vishandle = (XVisualInfo *) _mesa_malloc(sizeof(XVisualInfo)); - if (xmvis->vishandle) { - _mesa_memcpy(xmvis->vishandle, xmvis->visinfo, sizeof(XVisualInfo)); - } - return xmvis->vishandle; -#endif - } - else - return NULL; -} - - -static GLXContext -Fake_glXCreateContext( Display *dpy, XVisualInfo *visinfo, - GLXContext share_list, Bool direct ) -{ - XMesaVisual xmvis; - struct fake_glx_context *glxCtx; - struct fake_glx_context *shareCtx = (struct fake_glx_context *) share_list; - - if (!dpy || !visinfo) - return 0; - - glxCtx = CALLOC_STRUCT(fake_glx_context); - if (!glxCtx) - return 0; - - /* deallocate unused windows/buffers */ -#if 0 - XMesaGarbageCollect(); -#endif - - xmvis = find_glx_visual( dpy, visinfo ); - if (!xmvis) { - /* This visual wasn't found with glXChooseVisual() */ - xmvis = create_glx_visual( dpy, visinfo ); - if (!xmvis) { - /* unusable visual */ - _mesa_free(glxCtx); - return NULL; - } - } - - glxCtx->xmesaContext = XMesaCreateContext(xmvis, - shareCtx ? shareCtx->xmesaContext : NULL); - if (!glxCtx->xmesaContext) { - _mesa_free(glxCtx); - return NULL; - } - - glxCtx->glxContext.isDirect = GL_FALSE; - glxCtx->glxContext.currentDpy = dpy; - glxCtx->glxContext.xid = (XID) glxCtx; /* self pointer */ - - assert((void *) glxCtx == (void *) &(glxCtx->glxContext)); - - return (GLXContext) glxCtx; -} - - -/* XXX these may have to be removed due to thread-safety issues. */ -static GLXContext MakeCurrent_PrevContext = 0; -static GLXDrawable MakeCurrent_PrevDrawable = 0; -static GLXDrawable MakeCurrent_PrevReadable = 0; -static XMesaBuffer MakeCurrent_PrevDrawBuffer = 0; -static XMesaBuffer MakeCurrent_PrevReadBuffer = 0; - - -/* GLX 1.3 and later */ -static Bool -Fake_glXMakeContextCurrent( Display *dpy, GLXDrawable draw, - GLXDrawable read, GLXContext ctx ) -{ - struct fake_glx_context *glxCtx = (struct fake_glx_context *) ctx; - static boolean firsttime = 1, no_rast = 0; - - if (firsttime) { - no_rast = getenv("SP_NO_RAST") != NULL; - firsttime = 0; - } - - - if (ctx && draw && read) { - XMesaBuffer drawBuffer, readBuffer; - XMesaContext xmctx = glxCtx->xmesaContext; - - /* Find the XMesaBuffer which corresponds to the GLXDrawable 'draw' */ - if (ctx == MakeCurrent_PrevContext - && draw == MakeCurrent_PrevDrawable) { - drawBuffer = MakeCurrent_PrevDrawBuffer; - } - else { - drawBuffer = XMesaFindBuffer( dpy, draw ); - } - if (!drawBuffer) { - /* drawable must be a new window! */ - drawBuffer = XMesaCreateWindowBuffer( xmctx->xm_visual, draw ); - if (!drawBuffer) { - /* Out of memory, or context/drawable depth mismatch */ - return False; - } -#ifdef FX - FXcreateContext( xmctx->xm_visual, draw, xmctx, drawBuffer ); -#endif - } - - /* Find the XMesaBuffer which corresponds to the GLXDrawable 'read' */ - if (ctx == MakeCurrent_PrevContext - && read == MakeCurrent_PrevReadable) { - readBuffer = MakeCurrent_PrevReadBuffer; - } - else { - readBuffer = XMesaFindBuffer( dpy, read ); - } - if (!readBuffer) { - /* drawable must be a new window! */ - readBuffer = XMesaCreateWindowBuffer( xmctx->xm_visual, read ); - if (!readBuffer) { - /* Out of memory, or context/drawable depth mismatch */ - return False; - } -#ifdef FX - FXcreateContext( xmctx->xm_visual, read, xmctx, readBuffer ); -#endif - } - - if (no_rast && - MakeCurrent_PrevContext == ctx && - MakeCurrent_PrevDrawable == draw && - MakeCurrent_PrevReadable == read && - MakeCurrent_PrevDrawBuffer == drawBuffer && - MakeCurrent_PrevReadBuffer == readBuffer) - return True; - - MakeCurrent_PrevContext = ctx; - MakeCurrent_PrevDrawable = draw; - MakeCurrent_PrevReadable = read; - MakeCurrent_PrevDrawBuffer = drawBuffer; - MakeCurrent_PrevReadBuffer = readBuffer; - - /* Now make current! */ - if (XMesaMakeCurrent2(xmctx, drawBuffer, readBuffer)) { - ((__GLXcontext *) ctx)->currentDpy = dpy; - ((__GLXcontext *) ctx)->currentDrawable = draw; - ((__GLXcontext *) ctx)->currentReadable = read; - return True; - } - else { - return False; - } - } - else if (!ctx && !draw && !read) { - /* release current context w/out assigning new one. */ - XMesaMakeCurrent( NULL, NULL ); - MakeCurrent_PrevContext = 0; - MakeCurrent_PrevDrawable = 0; - MakeCurrent_PrevReadable = 0; - MakeCurrent_PrevDrawBuffer = 0; - MakeCurrent_PrevReadBuffer = 0; - return True; - } - else { - /* The args must either all be non-zero or all zero. - * This is an error. - */ - return False; - } -} - - -static Bool -Fake_glXMakeCurrent( Display *dpy, GLXDrawable drawable, GLXContext ctx ) -{ - return Fake_glXMakeContextCurrent( dpy, drawable, drawable, ctx ); -} - - -static GLXPixmap -Fake_glXCreateGLXPixmap( Display *dpy, XVisualInfo *visinfo, Pixmap pixmap ) -{ - XMesaVisual v; - XMesaBuffer b; - - v = find_glx_visual( dpy, visinfo ); - if (!v) { - v = create_glx_visual( dpy, visinfo ); - if (!v) { - /* unusable visual */ - return 0; - } - } - - b = XMesaCreatePixmapBuffer( v, pixmap, 0 ); - if (!b) { - return 0; - } - return b->drawable; -} - - -/*** GLX_MESA_pixmap_colormap ***/ - -static GLXPixmap -Fake_glXCreateGLXPixmapMESA( Display *dpy, XVisualInfo *visinfo, - Pixmap pixmap, Colormap cmap ) -{ - XMesaVisual v; - XMesaBuffer b; - - v = find_glx_visual( dpy, visinfo ); - if (!v) { - v = create_glx_visual( dpy, visinfo ); - if (!v) { - /* unusable visual */ - return 0; - } - } - - b = XMesaCreatePixmapBuffer( v, pixmap, cmap ); - if (!b) { - return 0; - } - return b->drawable; -} - - -static void -Fake_glXDestroyGLXPixmap( Display *dpy, GLXPixmap pixmap ) -{ - XMesaBuffer b = XMesaFindBuffer(dpy, pixmap); - if (b) { - XMesaDestroyBuffer(b); - } - else if (_mesa_getenv("MESA_DEBUG")) { - _mesa_warning(NULL, "Mesa: glXDestroyGLXPixmap: invalid pixmap\n"); - } -} - - -static void -Fake_glXCopyContext( Display *dpy, GLXContext src, GLXContext dst, - unsigned long mask ) -{ - struct fake_glx_context *fakeSrc = (struct fake_glx_context *) src; - struct fake_glx_context *fakeDst = (struct fake_glx_context *) dst; - XMesaContext xm_src = fakeSrc->xmesaContext; - XMesaContext xm_dst = fakeDst->xmesaContext; - (void) dpy; - if (MakeCurrent_PrevContext == src) { - _mesa_Flush(); - } - st_copy_context_state( xm_src->st, xm_dst->st, (GLuint) mask ); -} - - -static Bool -Fake_glXQueryExtension( Display *dpy, int *errorb, int *event ) -{ - /* Mesa's GLX isn't really an X extension but we try to act like one. */ - (void) dpy; - (void) errorb; - (void) event; - return True; -} - - -extern void _kw_ungrab_all( Display *dpy ); -void _kw_ungrab_all( Display *dpy ) -{ - XUngrabPointer( dpy, CurrentTime ); - XUngrabKeyboard( dpy, CurrentTime ); -} - - -static void -Fake_glXDestroyContext( Display *dpy, GLXContext ctx ) -{ - struct fake_glx_context *glxCtx = (struct fake_glx_context *) ctx; - (void) dpy; - MakeCurrent_PrevContext = 0; - MakeCurrent_PrevDrawable = 0; - MakeCurrent_PrevReadable = 0; - MakeCurrent_PrevDrawBuffer = 0; - MakeCurrent_PrevReadBuffer = 0; - XMesaDestroyContext( glxCtx->xmesaContext ); - XMesaGarbageCollect(); - _mesa_free(glxCtx); -} - - -static Bool -Fake_glXIsDirect( Display *dpy, GLXContext ctx ) -{ - (void) dpy; - (void) ctx; - return False; -} - - - -static void -Fake_glXSwapBuffers( Display *dpy, GLXDrawable drawable ) -{ - XMesaBuffer buffer = XMesaFindBuffer( dpy, drawable ); - static boolean firsttime = 1, no_rast = 0; - - if (firsttime) { - no_rast = getenv("SP_NO_RAST") != NULL; - firsttime = 0; - } - - if (no_rast) - return; - - if (buffer) { - XMesaSwapBuffers(buffer); - } - else if (_mesa_getenv("MESA_DEBUG")) { - _mesa_warning(NULL, "glXSwapBuffers: invalid drawable 0x%x\n", - (int) drawable); - } -} - - - -/*** GLX_MESA_copy_sub_buffer ***/ - -static void -Fake_glXCopySubBufferMESA( Display *dpy, GLXDrawable drawable, - int x, int y, int width, int height ) -{ - XMesaBuffer buffer = XMesaFindBuffer( dpy, drawable ); - if (buffer) { - XMesaCopySubBuffer(buffer, x, y, width, height); - } - else if (_mesa_getenv("MESA_DEBUG")) { - _mesa_warning(NULL, "Mesa: glXCopySubBufferMESA: invalid drawable\n"); - } -} - - -static Bool -Fake_glXQueryVersion( Display *dpy, int *maj, int *min ) -{ - (void) dpy; - /* Return GLX version, not Mesa version */ - assert(CLIENT_MAJOR_VERSION == SERVER_MAJOR_VERSION); - *maj = CLIENT_MAJOR_VERSION; - *min = MIN2( CLIENT_MINOR_VERSION, SERVER_MINOR_VERSION ); - return True; -} - - -/* - * Query the GLX attributes of the given XVisualInfo. - */ -static int -get_config( XMesaVisual xmvis, int attrib, int *value, GLboolean fbconfig ) -{ - ASSERT(xmvis); - switch(attrib) { - case GLX_USE_GL: - if (fbconfig) - return GLX_BAD_ATTRIBUTE; - *value = (int) True; - return 0; - case GLX_BUFFER_SIZE: - *value = xmvis->visinfo->depth; - return 0; - case GLX_LEVEL: - *value = xmvis->mesa_visual.level; - return 0; - case GLX_RGBA: - if (fbconfig) - return GLX_BAD_ATTRIBUTE; - if (xmvis->mesa_visual.rgbMode) { - *value = True; - } - else { - *value = False; - } - return 0; - case GLX_DOUBLEBUFFER: - *value = (int) xmvis->mesa_visual.doubleBufferMode; - return 0; - case GLX_STEREO: - *value = (int) xmvis->mesa_visual.stereoMode; - return 0; - case GLX_AUX_BUFFERS: - *value = xmvis->mesa_visual.numAuxBuffers; - return 0; - case GLX_RED_SIZE: - *value = xmvis->mesa_visual.redBits; - return 0; - case GLX_GREEN_SIZE: - *value = xmvis->mesa_visual.greenBits; - return 0; - case GLX_BLUE_SIZE: - *value = xmvis->mesa_visual.blueBits; - return 0; - case GLX_ALPHA_SIZE: - *value = xmvis->mesa_visual.alphaBits; - return 0; - case GLX_DEPTH_SIZE: - *value = xmvis->mesa_visual.depthBits; - return 0; - case GLX_STENCIL_SIZE: - *value = xmvis->mesa_visual.stencilBits; - return 0; - case GLX_ACCUM_RED_SIZE: - *value = xmvis->mesa_visual.accumRedBits; - return 0; - case GLX_ACCUM_GREEN_SIZE: - *value = xmvis->mesa_visual.accumGreenBits; - return 0; - case GLX_ACCUM_BLUE_SIZE: - *value = xmvis->mesa_visual.accumBlueBits; - return 0; - case GLX_ACCUM_ALPHA_SIZE: - *value = xmvis->mesa_visual.accumAlphaBits; - return 0; - - /* - * GLX_EXT_visual_info extension - */ - case GLX_X_VISUAL_TYPE_EXT: - switch (xmvis->visinfo->CLASS) { - case StaticGray: *value = GLX_STATIC_GRAY_EXT; return 0; - case GrayScale: *value = GLX_GRAY_SCALE_EXT; return 0; - case StaticColor: *value = GLX_STATIC_GRAY_EXT; return 0; - case PseudoColor: *value = GLX_PSEUDO_COLOR_EXT; return 0; - case TrueColor: *value = GLX_TRUE_COLOR_EXT; return 0; - case DirectColor: *value = GLX_DIRECT_COLOR_EXT; return 0; - } - return 0; - case GLX_TRANSPARENT_TYPE_EXT: - if (xmvis->mesa_visual.level==0) { - /* normal planes */ - *value = GLX_NONE_EXT; - } - else if (xmvis->mesa_visual.level>0) { - /* overlay */ - if (xmvis->mesa_visual.rgbMode) { - *value = GLX_TRANSPARENT_RGB_EXT; - } - else { - *value = GLX_TRANSPARENT_INDEX_EXT; - } - } - else if (xmvis->mesa_visual.level<0) { - /* underlay */ - *value = GLX_NONE_EXT; - } - return 0; - case GLX_TRANSPARENT_INDEX_VALUE_EXT: - { - int pixel = transparent_pixel( xmvis ); - if (pixel>=0) { - *value = pixel; - } - /* else undefined */ - } - return 0; - case GLX_TRANSPARENT_RED_VALUE_EXT: - /* undefined */ - return 0; - case GLX_TRANSPARENT_GREEN_VALUE_EXT: - /* undefined */ - return 0; - case GLX_TRANSPARENT_BLUE_VALUE_EXT: - /* undefined */ - return 0; - case GLX_TRANSPARENT_ALPHA_VALUE_EXT: - /* undefined */ - return 0; - - /* - * GLX_EXT_visual_info extension - */ - case GLX_VISUAL_CAVEAT_EXT: - /* test for zero, just in case */ - if (xmvis->mesa_visual.visualRating > 0) - *value = xmvis->mesa_visual.visualRating; - else - *value = GLX_NONE_EXT; - return 0; - - /* - * GLX_ARB_multisample - */ - case GLX_SAMPLE_BUFFERS_ARB: - *value = 0; - return 0; - case GLX_SAMPLES_ARB: - *value = 0; - return 0; - - /* - * For FBConfigs: - */ - case GLX_SCREEN_EXT: - if (!fbconfig) - return GLX_BAD_ATTRIBUTE; - *value = xmvis->visinfo->screen; - break; - case GLX_DRAWABLE_TYPE: /*SGIX too */ - if (!fbconfig) - return GLX_BAD_ATTRIBUTE; - *value = GLX_WINDOW_BIT | GLX_PIXMAP_BIT | GLX_PBUFFER_BIT; - break; - case GLX_RENDER_TYPE_SGIX: - if (!fbconfig) - return GLX_BAD_ATTRIBUTE; - if (xmvis->mesa_visual.rgbMode) - *value = GLX_RGBA_BIT; - else - *value = GLX_COLOR_INDEX_BIT; - break; - case GLX_X_RENDERABLE_SGIX: - if (!fbconfig) - return GLX_BAD_ATTRIBUTE; - *value = True; /* XXX really? */ - break; - case GLX_FBCONFIG_ID_SGIX: - if (!fbconfig) - return GLX_BAD_ATTRIBUTE; - *value = xmvis->visinfo->visualid; - break; - case GLX_MAX_PBUFFER_WIDTH: - if (!fbconfig) - return GLX_BAD_ATTRIBUTE; - /* XXX or MAX_WIDTH? */ - *value = DisplayWidth(xmvis->display, xmvis->visinfo->screen); - break; - case GLX_MAX_PBUFFER_HEIGHT: - if (!fbconfig) - return GLX_BAD_ATTRIBUTE; - *value = DisplayHeight(xmvis->display, xmvis->visinfo->screen); - break; - case GLX_MAX_PBUFFER_PIXELS: - if (!fbconfig) - return GLX_BAD_ATTRIBUTE; - *value = DisplayWidth(xmvis->display, xmvis->visinfo->screen) * - DisplayHeight(xmvis->display, xmvis->visinfo->screen); - break; - case GLX_VISUAL_ID: - if (!fbconfig) - return GLX_BAD_ATTRIBUTE; - *value = xmvis->visinfo->visualid; - break; - -#ifdef GLX_EXT_texture_from_pixmap - case GLX_BIND_TO_TEXTURE_RGB_EXT: - *value = True; /*XXX*/ - break; - case GLX_BIND_TO_TEXTURE_RGBA_EXT: - /* XXX review */ - *value = xmvis->mesa_visual.alphaBits > 0 ? True : False; - break; - case GLX_BIND_TO_MIPMAP_TEXTURE_EXT: - *value = True; /*XXX*/ - break; - case GLX_BIND_TO_TEXTURE_TARGETS_EXT: - *value = (GLX_TEXTURE_1D_BIT_EXT | - GLX_TEXTURE_2D_BIT_EXT | - GLX_TEXTURE_RECTANGLE_BIT_EXT); /*XXX*/ - break; - case GLX_Y_INVERTED_EXT: - *value = True; /*XXX*/ - break; -#endif - - default: - return GLX_BAD_ATTRIBUTE; - } - return Success; -} - - -static int -Fake_glXGetConfig( Display *dpy, XVisualInfo *visinfo, - int attrib, int *value ) -{ - XMesaVisual xmvis; - int k; - if (!dpy || !visinfo) - return GLX_BAD_ATTRIBUTE; - - xmvis = find_glx_visual( dpy, visinfo ); - if (!xmvis) { - /* this visual wasn't obtained with glXChooseVisual */ - xmvis = create_glx_visual( dpy, visinfo ); - if (!xmvis) { - /* this visual can't be used for GL rendering */ - if (attrib==GLX_USE_GL) { - *value = (int) False; - return 0; - } - else { - return GLX_BAD_VISUAL; - } - } - } - - k = get_config(xmvis, attrib, value, GL_FALSE); - return k; -} - - -static void -Fake_glXWaitGL( void ) -{ - XMesaContext xmesa = XMesaGetCurrentContext(); - XMesaFlush( xmesa ); -} - - - -static void -Fake_glXWaitX( void ) -{ - XMesaContext xmesa = XMesaGetCurrentContext(); - XMesaFlush( xmesa ); -} - - -static const char * -get_extensions( void ) -{ -#ifdef FX - const char *fx = _mesa_getenv("MESA_GLX_FX"); - if (fx && fx[0] != 'd') { - return EXTENSIONS; - } -#endif - return EXTENSIONS + 23; /* skip "GLX_MESA_set_3dfx_mode" */ -} - - - -/* GLX 1.1 and later */ -static const char * -Fake_glXQueryExtensionsString( Display *dpy, int screen ) -{ - (void) dpy; - (void) screen; - return get_extensions(); -} - - - -/* GLX 1.1 and later */ -static const char * -Fake_glXQueryServerString( Display *dpy, int screen, int name ) -{ - static char version[1000]; - _mesa_sprintf(version, "%d.%d %s", - SERVER_MAJOR_VERSION, SERVER_MINOR_VERSION, MESA_GLX_VERSION); - - (void) dpy; - (void) screen; - - switch (name) { - case GLX_EXTENSIONS: - return get_extensions(); - case GLX_VENDOR: - return VENDOR; - case GLX_VERSION: - return version; - default: - return NULL; - } -} - - - -/* GLX 1.1 and later */ -static const char * -Fake_glXGetClientString( Display *dpy, int name ) -{ - static char version[1000]; - _mesa_sprintf(version, "%d.%d %s", CLIENT_MAJOR_VERSION, - CLIENT_MINOR_VERSION, MESA_GLX_VERSION); - - (void) dpy; - - switch (name) { - case GLX_EXTENSIONS: - return get_extensions(); - case GLX_VENDOR: - return VENDOR; - case GLX_VERSION: - return version; - default: - return NULL; - } -} - - - -/* - * GLX 1.3 and later - */ - - -static int -Fake_glXGetFBConfigAttrib( Display *dpy, GLXFBConfig config, - int attribute, int *value ) -{ - XMesaVisual v = (XMesaVisual) config; - (void) dpy; - (void) config; - - if (!dpy || !config || !value) - return -1; - - return get_config(v, attribute, value, GL_TRUE); -} - - -static GLXFBConfig * -Fake_glXGetFBConfigs( Display *dpy, int screen, int *nelements ) -{ - XVisualInfo *visuals, visTemplate; - const long visMask = VisualScreenMask; - int i; - - /* Get list of all X visuals */ - visTemplate.screen = screen; - visuals = XGetVisualInfo(dpy, visMask, &visTemplate, nelements); - if (*nelements > 0) { - XMesaVisual *results; - results = (XMesaVisual *) _mesa_malloc(*nelements * sizeof(XMesaVisual)); - if (!results) { - *nelements = 0; - return NULL; - } - for (i = 0; i < *nelements; i++) { - results[i] = create_glx_visual(dpy, visuals + i); - } - return (GLXFBConfig *) results; - } - return NULL; -} - - -static GLXFBConfig * -Fake_glXChooseFBConfig( Display *dpy, int screen, - const int *attribList, int *nitems ) -{ - XMesaVisual xmvis; - - if (!attribList || !attribList[0]) { - /* return list of all configs (per GLX_SGIX_fbconfig spec) */ - return Fake_glXGetFBConfigs(dpy, screen, nitems); - } - - xmvis = choose_visual(dpy, screen, attribList, GL_TRUE); - if (xmvis) { - GLXFBConfig *config = (GLXFBConfig *) _mesa_malloc(sizeof(XMesaVisual)); - if (!config) { - *nitems = 0; - return NULL; - } - *nitems = 1; - config[0] = (GLXFBConfig) xmvis; - return (GLXFBConfig *) config; - } - else { - *nitems = 0; - return NULL; - } -} - - -static XVisualInfo * -Fake_glXGetVisualFromFBConfig( Display *dpy, GLXFBConfig config ) -{ - if (dpy && config) { - XMesaVisual xmvis = (XMesaVisual) config; -#if 0 - return xmvis->vishandle; -#else - /* create a new vishandle - the cached one may be stale */ - xmvis->vishandle = (XVisualInfo *) _mesa_malloc(sizeof(XVisualInfo)); - if (xmvis->vishandle) { - _mesa_memcpy(xmvis->vishandle, xmvis->visinfo, sizeof(XVisualInfo)); - } - return xmvis->vishandle; -#endif - } - else { - return NULL; - } -} - - -static GLXWindow -Fake_glXCreateWindow( Display *dpy, GLXFBConfig config, Window win, - const int *attribList ) -{ - XMesaVisual xmvis = (XMesaVisual) config; - XMesaBuffer xmbuf; - if (!xmvis) - return 0; - - xmbuf = XMesaCreateWindowBuffer(xmvis, win); - if (!xmbuf) - return 0; - -#ifdef FX - /* XXX this will segfault if actually called */ - FXcreateContext(xmvis, win, NULL, xmbuf); -#endif - - (void) dpy; - (void) attribList; /* Ignored in GLX 1.3 */ - - return win; /* A hack for now */ -} - - -static void -Fake_glXDestroyWindow( Display *dpy, GLXWindow window ) -{ - XMesaBuffer b = XMesaFindBuffer(dpy, (XMesaDrawable) window); - if (b) - XMesaDestroyBuffer(b); - /* don't destroy X window */ -} - - -/* XXX untested */ -static GLXPixmap -Fake_glXCreatePixmap( Display *dpy, GLXFBConfig config, Pixmap pixmap, - const int *attribList ) -{ - XMesaVisual v = (XMesaVisual) config; - XMesaBuffer b; - const int *attr; - int target = 0, format = 0, mipmap = 0; - int value; - - if (!dpy || !config || !pixmap) - return 0; - - for (attr = attribList; *attr; attr++) { - switch (*attr) { - case GLX_TEXTURE_FORMAT_EXT: - attr++; - switch (*attr) { - case GLX_TEXTURE_FORMAT_NONE_EXT: - case GLX_TEXTURE_FORMAT_RGB_EXT: - case GLX_TEXTURE_FORMAT_RGBA_EXT: - format = *attr; - break; - default: - /* error */ - return 0; - } - break; - case GLX_TEXTURE_TARGET_EXT: - attr++; - switch (*attr) { - case GLX_TEXTURE_1D_EXT: - case GLX_TEXTURE_2D_EXT: - case GLX_TEXTURE_RECTANGLE_EXT: - target = *attr; - break; - default: - /* error */ - return 0; - } - break; - case GLX_MIPMAP_TEXTURE_EXT: - attr++; - if (*attr) - mipmap = 1; - break; - default: - /* error */ - return 0; - } - } - - if (format == GLX_TEXTURE_FORMAT_RGB_EXT) { - if (get_config(v, GLX_BIND_TO_TEXTURE_RGB_EXT, - &value, GL_TRUE) != Success - || !value) { - return 0; /* error! */ - } - } - else if (format == GLX_TEXTURE_FORMAT_RGBA_EXT) { - if (get_config(v, GLX_BIND_TO_TEXTURE_RGBA_EXT, - &value, GL_TRUE) != Success - || !value) { - return 0; /* error! */ - } - } - if (mipmap) { - if (get_config(v, GLX_BIND_TO_MIPMAP_TEXTURE_EXT, - &value, GL_TRUE) != Success - || !value) { - return 0; /* error! */ - } - } - if (target == GLX_TEXTURE_1D_EXT) { - if (get_config(v, GLX_BIND_TO_TEXTURE_TARGETS_EXT, - &value, GL_TRUE) != Success - || (value & GLX_TEXTURE_1D_BIT_EXT) == 0) { - return 0; /* error! */ - } - } - else if (target == GLX_TEXTURE_2D_EXT) { - if (get_config(v, GLX_BIND_TO_TEXTURE_TARGETS_EXT, - &value, GL_TRUE) != Success - || (value & GLX_TEXTURE_2D_BIT_EXT) == 0) { - return 0; /* error! */ - } - } - if (target == GLX_TEXTURE_RECTANGLE_EXT) { - if (get_config(v, GLX_BIND_TO_TEXTURE_TARGETS_EXT, - &value, GL_TRUE) != Success - || (value & GLX_TEXTURE_RECTANGLE_BIT_EXT) == 0) { - return 0; /* error! */ - } - } - - if (format || target || mipmap) { - /* texture from pixmap */ - b = XMesaCreatePixmapTextureBuffer(v, pixmap, 0, format, target, mipmap); - } - else { - b = XMesaCreatePixmapBuffer( v, pixmap, 0 ); - } - if (!b) { - return 0; - } - - return pixmap; -} - - -static void -Fake_glXDestroyPixmap( Display *dpy, GLXPixmap pixmap ) -{ - XMesaBuffer b = XMesaFindBuffer(dpy, (XMesaDrawable)pixmap); - if (b) - XMesaDestroyBuffer(b); - /* don't destroy X pixmap */ -} - - -static GLXPbuffer -Fake_glXCreatePbuffer( Display *dpy, GLXFBConfig config, - const int *attribList ) -{ - XMesaVisual xmvis = (XMesaVisual) config; - XMesaBuffer xmbuf; - const int *attrib; - int width = 0, height = 0; - GLboolean useLargest = GL_FALSE, preserveContents = GL_FALSE; - - (void) dpy; - - for (attrib = attribList; *attrib; attrib++) { - switch (*attrib) { - case GLX_PBUFFER_WIDTH: - attrib++; - width = *attrib; - break; - case GLX_PBUFFER_HEIGHT: - attrib++; - height = *attrib; - break; - case GLX_PRESERVED_CONTENTS: - attrib++; - preserveContents = *attrib; /* ignored */ - break; - case GLX_LARGEST_PBUFFER: - attrib++; - useLargest = *attrib; /* ignored */ - break; - default: - return 0; - } - } - - /* not used at this time */ - (void) useLargest; - (void) preserveContents; - - if (width == 0 || height == 0) - return 0; - - xmbuf = XMesaCreatePBuffer( xmvis, 0, width, height); - /* A GLXPbuffer handle must be an X Drawable because that's what - * glXMakeCurrent takes. - */ - if (xmbuf) - return (GLXPbuffer) xmbuf->drawable; - else - return 0; -} - - -static void -Fake_glXDestroyPbuffer( Display *dpy, GLXPbuffer pbuf ) -{ - XMesaBuffer b = XMesaFindBuffer(dpy, pbuf); - if (b) { - XMesaDestroyBuffer(b); - } -} - - -static void -Fake_glXQueryDrawable( Display *dpy, GLXDrawable draw, int attribute, - unsigned int *value ) -{ - XMesaBuffer xmbuf = XMesaFindBuffer(dpy, draw); - if (!xmbuf) - return; - - switch (attribute) { - case GLX_WIDTH: - *value = xmesa_buffer_width(xmbuf); - break; - case GLX_HEIGHT: - *value = xmesa_buffer_width(xmbuf); - break; - case GLX_PRESERVED_CONTENTS: - *value = True; - break; - case GLX_LARGEST_PBUFFER: - *value = xmesa_buffer_width(xmbuf) * xmesa_buffer_height(xmbuf); - break; - case GLX_FBCONFIG_ID: - *value = xmbuf->xm_visual->visinfo->visualid; - return; -#ifdef GLX_EXT_texture_from_pixmap - case GLX_TEXTURE_FORMAT_EXT: - *value = xmbuf->TextureFormat; - break; - case GLX_TEXTURE_TARGET_EXT: - *value = xmbuf->TextureTarget; - break; - case GLX_MIPMAP_TEXTURE_EXT: - *value = xmbuf->TextureMipmap; - break; -#endif - - default: - return; /* raise BadValue error */ - } -} - - -static GLXContext -Fake_glXCreateNewContext( Display *dpy, GLXFBConfig config, - int renderType, GLXContext shareList, Bool direct ) -{ - struct fake_glx_context *glxCtx; - struct fake_glx_context *shareCtx = (struct fake_glx_context *) shareList; - XMesaVisual xmvis = (XMesaVisual) config; - - if (!dpy || !config || - (renderType != GLX_RGBA_TYPE && renderType != GLX_COLOR_INDEX_TYPE)) - return 0; - - glxCtx = CALLOC_STRUCT(fake_glx_context); - if (!glxCtx) - return 0; - - /* deallocate unused windows/buffers */ - XMesaGarbageCollect(); - - glxCtx->xmesaContext = XMesaCreateContext(xmvis, - shareCtx ? shareCtx->xmesaContext : NULL); - if (!glxCtx->xmesaContext) { - _mesa_free(glxCtx); - return NULL; - } - - glxCtx->glxContext.isDirect = GL_FALSE; - glxCtx->glxContext.currentDpy = dpy; - glxCtx->glxContext.xid = (XID) glxCtx; /* self pointer */ - - assert((void *) glxCtx == (void *) &(glxCtx->glxContext)); - - return (GLXContext) glxCtx; -} - - -static int -Fake_glXQueryContext( Display *dpy, GLXContext ctx, int attribute, int *value ) -{ - struct fake_glx_context *glxCtx = (struct fake_glx_context *) ctx; - XMesaContext xmctx = glxCtx->xmesaContext; - - (void) dpy; - (void) ctx; - - switch (attribute) { - case GLX_FBCONFIG_ID: - *value = xmctx->xm_visual->visinfo->visualid; - break; - case GLX_RENDER_TYPE: - if (xmctx->xm_visual->mesa_visual.rgbMode) - *value = GLX_RGBA_BIT; - else - *value = GLX_COLOR_INDEX_BIT; - break; - case GLX_SCREEN: - *value = 0; - return Success; - default: - return GLX_BAD_ATTRIBUTE; - } - return 0; -} - - -static void -Fake_glXSelectEvent( Display *dpy, GLXDrawable drawable, unsigned long mask ) -{ - XMesaBuffer xmbuf = XMesaFindBuffer(dpy, drawable); - if (xmbuf) - xmbuf->selectedEvents = mask; -} - - -static void -Fake_glXGetSelectedEvent( Display *dpy, GLXDrawable drawable, - unsigned long *mask ) -{ - XMesaBuffer xmbuf = XMesaFindBuffer(dpy, drawable); - if (xmbuf) - *mask = xmbuf->selectedEvents; - else - *mask = 0; -} - - - -/*** GLX_SGI_swap_control ***/ - -static int -Fake_glXSwapIntervalSGI(int interval) -{ - (void) interval; - return 0; -} - - - -/*** GLX_SGI_video_sync ***/ - -static unsigned int FrameCounter = 0; - -static int -Fake_glXGetVideoSyncSGI(unsigned int *count) -{ - /* this is a bogus implementation */ - *count = FrameCounter++; - return 0; -} - -static int -Fake_glXWaitVideoSyncSGI(int divisor, int remainder, unsigned int *count) -{ - if (divisor <= 0 || remainder < 0) - return GLX_BAD_VALUE; - /* this is a bogus implementation */ - FrameCounter++; - while (FrameCounter % divisor != remainder) - FrameCounter++; - *count = FrameCounter; - return 0; -} - - - -/*** GLX_SGI_make_current_read ***/ - -static Bool -Fake_glXMakeCurrentReadSGI(Display *dpy, GLXDrawable draw, GLXDrawable read, GLXContext ctx) -{ - return Fake_glXMakeContextCurrent( dpy, draw, read, ctx ); -} - -/* not used -static GLXDrawable -Fake_glXGetCurrentReadDrawableSGI(void) -{ - return 0; -} -*/ - - -/*** GLX_SGIX_video_source ***/ -#if defined(_VL_H) - -static GLXVideoSourceSGIX -Fake_glXCreateGLXVideoSourceSGIX(Display *dpy, int screen, VLServer server, VLPath path, int nodeClass, VLNode drainNode) -{ - (void) dpy; - (void) screen; - (void) server; - (void) path; - (void) nodeClass; - (void) drainNode; - return 0; -} - -static void -Fake_glXDestroyGLXVideoSourceSGIX(Display *dpy, GLXVideoSourceSGIX src) -{ - (void) dpy; - (void) src; -} - -#endif - - -/*** GLX_EXT_import_context ***/ - -static void -Fake_glXFreeContextEXT(Display *dpy, GLXContext context) -{ - (void) dpy; - (void) context; -} - -static GLXContextID -Fake_glXGetContextIDEXT(const GLXContext context) -{ - (void) context; - return 0; -} - -static GLXContext -Fake_glXImportContextEXT(Display *dpy, GLXContextID contextID) -{ - (void) dpy; - (void) contextID; - return 0; -} - -static int -Fake_glXQueryContextInfoEXT(Display *dpy, GLXContext context, int attribute, int *value) -{ - (void) dpy; - (void) context; - (void) attribute; - (void) value; - return 0; -} - - - -/*** GLX_SGIX_fbconfig ***/ - -static int -Fake_glXGetFBConfigAttribSGIX(Display *dpy, GLXFBConfigSGIX config, int attribute, int *value) -{ - return Fake_glXGetFBConfigAttrib(dpy, config, attribute, value); -} - -static GLXFBConfigSGIX * -Fake_glXChooseFBConfigSGIX(Display *dpy, int screen, int *attrib_list, int *nelements) -{ - return (GLXFBConfig *) Fake_glXChooseFBConfig(dpy, screen, attrib_list, nelements); -} - - -static GLXPixmap -Fake_glXCreateGLXPixmapWithConfigSGIX(Display *dpy, GLXFBConfigSGIX config, Pixmap pixmap) -{ - XMesaVisual xmvis = (XMesaVisual) config; - XMesaBuffer xmbuf = XMesaCreatePixmapBuffer(xmvis, pixmap, 0); - return xmbuf->drawable; /* need to return an X ID */ -} - - -static GLXContext -Fake_glXCreateContextWithConfigSGIX(Display *dpy, GLXFBConfigSGIX config, int render_type, GLXContext share_list, Bool direct) -{ - XMesaVisual xmvis = (XMesaVisual) config; - struct fake_glx_context *glxCtx; - struct fake_glx_context *shareCtx = (struct fake_glx_context *) share_list; - - glxCtx = CALLOC_STRUCT(fake_glx_context); - if (!glxCtx) - return 0; - - /* deallocate unused windows/buffers */ - XMesaGarbageCollect(); - - glxCtx->xmesaContext = XMesaCreateContext(xmvis, - shareCtx ? shareCtx->xmesaContext : NULL); - if (!glxCtx->xmesaContext) { - _mesa_free(glxCtx); - return NULL; - } - - glxCtx->glxContext.isDirect = GL_FALSE; - glxCtx->glxContext.currentDpy = dpy; - glxCtx->glxContext.xid = (XID) glxCtx; /* self pointer */ - - assert((void *) glxCtx == (void *) &(glxCtx->glxContext)); - - return (GLXContext) glxCtx; -} - - -static XVisualInfo * -Fake_glXGetVisualFromFBConfigSGIX(Display *dpy, GLXFBConfigSGIX config) -{ - return Fake_glXGetVisualFromFBConfig(dpy, config); -} - - -static GLXFBConfigSGIX -Fake_glXGetFBConfigFromVisualSGIX(Display *dpy, XVisualInfo *vis) -{ - XMesaVisual xmvis = find_glx_visual(dpy, vis); - if (!xmvis) { - /* This visual wasn't found with glXChooseVisual() */ - xmvis = create_glx_visual(dpy, vis); - } - - return (GLXFBConfigSGIX) xmvis; -} - - - -/*** GLX_SGIX_pbuffer ***/ - -static GLXPbufferSGIX -Fake_glXCreateGLXPbufferSGIX(Display *dpy, GLXFBConfigSGIX config, - unsigned int width, unsigned int height, - int *attribList) -{ - XMesaVisual xmvis = (XMesaVisual) config; - XMesaBuffer xmbuf; - const int *attrib; - GLboolean useLargest = GL_FALSE, preserveContents = GL_FALSE; - - (void) dpy; - - for (attrib = attribList; attrib && *attrib; attrib++) { - switch (*attrib) { - case GLX_PRESERVED_CONTENTS_SGIX: - attrib++; - preserveContents = *attrib; /* ignored */ - break; - case GLX_LARGEST_PBUFFER_SGIX: - attrib++; - useLargest = *attrib; /* ignored */ - break; - default: - return 0; - } - } - - /* not used at this time */ - (void) useLargest; - (void) preserveContents; - - xmbuf = XMesaCreatePBuffer( xmvis, 0, width, height); - /* A GLXPbuffer handle must be an X Drawable because that's what - * glXMakeCurrent takes. - */ - return (GLXPbuffer) xmbuf->drawable; -} - - -static void -Fake_glXDestroyGLXPbufferSGIX(Display *dpy, GLXPbufferSGIX pbuf) -{ - XMesaBuffer xmbuf = XMesaFindBuffer(dpy, pbuf); - if (xmbuf) { - XMesaDestroyBuffer(xmbuf); - } -} - - -static int -Fake_glXQueryGLXPbufferSGIX(Display *dpy, GLXPbufferSGIX pbuf, int attribute, unsigned int *value) -{ - const XMesaBuffer xmbuf = XMesaFindBuffer(dpy, pbuf); - - if (!xmbuf) { - /* Generate GLXBadPbufferSGIX for bad pbuffer */ - return 0; - } - - switch (attribute) { - case GLX_PRESERVED_CONTENTS_SGIX: - *value = True; - break; - case GLX_LARGEST_PBUFFER_SGIX: - *value = xmesa_buffer_width(xmbuf) * xmesa_buffer_height(xmbuf); - break; - case GLX_WIDTH_SGIX: - *value = xmesa_buffer_width(xmbuf); - break; - case GLX_HEIGHT_SGIX: - *value = xmesa_buffer_height(xmbuf); - break; - case GLX_EVENT_MASK_SGIX: - *value = 0; /* XXX might be wrong */ - break; - default: - *value = 0; - } - return 0; -} - - -static void -Fake_glXSelectEventSGIX(Display *dpy, GLXDrawable drawable, unsigned long mask) -{ - XMesaBuffer xmbuf = XMesaFindBuffer(dpy, drawable); - if (xmbuf) { - /* Note: we'll never generate clobber events */ - xmbuf->selectedEvents = mask; - } -} - - -static void -Fake_glXGetSelectedEventSGIX(Display *dpy, GLXDrawable drawable, unsigned long *mask) -{ - XMesaBuffer xmbuf = XMesaFindBuffer(dpy, drawable); - if (xmbuf) { - *mask = xmbuf->selectedEvents; - } - else { - *mask = 0; - } -} - - - -/*** GLX_SGI_cushion ***/ - -static void -Fake_glXCushionSGI(Display *dpy, Window win, float cushion) -{ - (void) dpy; - (void) win; - (void) cushion; -} - - - -/*** GLX_SGIX_video_resize ***/ - -static int -Fake_glXBindChannelToWindowSGIX(Display *dpy, int screen, int channel , Window window) -{ - (void) dpy; - (void) screen; - (void) channel; - (void) window; - return 0; -} - -static int -Fake_glXChannelRectSGIX(Display *dpy, int screen, int channel, int x, int y, int w, int h) -{ - (void) dpy; - (void) screen; - (void) channel; - (void) x; - (void) y; - (void) w; - (void) h; - return 0; -} - -static int -Fake_glXQueryChannelRectSGIX(Display *dpy, int screen, int channel, int *x, int *y, int *w, int *h) -{ - (void) dpy; - (void) screen; - (void) channel; - (void) x; - (void) y; - (void) w; - (void) h; - return 0; -} - -static int -Fake_glXQueryChannelDeltasSGIX(Display *dpy, int screen, int channel, int *dx, int *dy, int *dw, int *dh) -{ - (void) dpy; - (void) screen; - (void) channel; - (void) dx; - (void) dy; - (void) dw; - (void) dh; - return 0; -} - -static int -Fake_glXChannelRectSyncSGIX(Display *dpy, int screen, int channel, GLenum synctype) -{ - (void) dpy; - (void) screen; - (void) channel; - (void) synctype; - return 0; -} - - - -/*** GLX_SGIX_dmbuffer **/ - -#if defined(_DM_BUFFER_H_) -static Bool -Fake_glXAssociateDMPbufferSGIX(Display *dpy, GLXPbufferSGIX pbuffer, DMparams *params, DMbuffer dmbuffer) -{ - (void) dpy; - (void) pbuffer; - (void) params; - (void) dmbuffer; - return False; -} -#endif - - -/*** GLX_SGIX_swap_group ***/ - -static void -Fake_glXJoinSwapGroupSGIX(Display *dpy, GLXDrawable drawable, GLXDrawable member) -{ - (void) dpy; - (void) drawable; - (void) member; -} - - - -/*** GLX_SGIX_swap_barrier ***/ - -static void -Fake_glXBindSwapBarrierSGIX(Display *dpy, GLXDrawable drawable, int barrier) -{ - (void) dpy; - (void) drawable; - (void) barrier; -} - -static Bool -Fake_glXQueryMaxSwapBarriersSGIX(Display *dpy, int screen, int *max) -{ - (void) dpy; - (void) screen; - (void) max; - return False; -} - - - -/*** GLX_SUN_get_transparent_index ***/ - -static Status -Fake_glXGetTransparentIndexSUN(Display *dpy, Window overlay, Window underlay, long *pTransparent) -{ - (void) dpy; - (void) overlay; - (void) underlay; - (void) pTransparent; - return 0; -} - - - -/*** GLX_MESA_release_buffers ***/ - -/* - * Release the depth, stencil, accum buffers attached to a GLXDrawable - * (a window or pixmap) prior to destroying the GLXDrawable. - */ -static Bool -Fake_glXReleaseBuffersMESA( Display *dpy, GLXDrawable d ) -{ - XMesaBuffer b = XMesaFindBuffer(dpy, d); - if (b) { - XMesaDestroyBuffer(b); - return True; - } - return False; -} - - - -/*** GLX_MESA_set_3dfx_mode ***/ - -static Bool -Fake_glXSet3DfxModeMESA( int mode ) -{ - return XMesaSetFXmode( mode ); -} - - - -/*** GLX_NV_vertex_array range ***/ -static void * -Fake_glXAllocateMemoryNV( GLsizei size, - GLfloat readFrequency, - GLfloat writeFrequency, - GLfloat priority ) -{ - (void) size; - (void) readFrequency; - (void) writeFrequency; - (void) priority; - return NULL; -} - - -static void -Fake_glXFreeMemoryNV( GLvoid *pointer ) -{ - (void) pointer; -} - - -/*** GLX_MESA_agp_offset ***/ - -static GLuint -Fake_glXGetAGPOffsetMESA( const GLvoid *pointer ) -{ - (void) pointer; - return ~0; -} - - -/*** GLX_EXT_texture_from_pixmap ***/ - -static void -Fake_glXBindTexImageEXT(Display *dpy, GLXDrawable drawable, int buffer, - const int *attrib_list) -{ - XMesaBuffer b = XMesaFindBuffer(dpy, drawable); - if (b) - XMesaBindTexImage(dpy, b, buffer, attrib_list); -} - -static void -Fake_glXReleaseTexImageEXT(Display *dpy, GLXDrawable drawable, int buffer) -{ - XMesaBuffer b = XMesaFindBuffer(dpy, drawable); - if (b) - XMesaReleaseTexImage(dpy, b, buffer); -} - - -/* silence warning */ -extern struct _glxapi_table *_mesa_GetGLXDispatchTable(void); - - -/** - * Create a new GLX API dispatch table with its function pointers - * initialized to point to Mesa's "fake" GLX API functions. - * Note: there's a similar function (_real_GetGLXDispatchTable) that - * returns a new dispatch table with all pointers initalized to point - * to "real" GLX functions (which understand GLX wire protocol, etc). - */ -struct _glxapi_table * -_mesa_GetGLXDispatchTable(void) -{ - static struct _glxapi_table glx; - - /* be sure our dispatch table size <= libGL's table */ - { - GLuint size = sizeof(struct _glxapi_table) / sizeof(void *); - (void) size; - assert(_glxapi_get_dispatch_table_size() >= size); - } - - /* initialize the whole table to no-ops */ - _glxapi_set_no_op_table(&glx); - - /* now initialize the table with the functions I implement */ - glx.ChooseVisual = Fake_glXChooseVisual; - glx.CopyContext = Fake_glXCopyContext; - glx.CreateContext = Fake_glXCreateContext; - glx.CreateGLXPixmap = Fake_glXCreateGLXPixmap; - glx.DestroyContext = Fake_glXDestroyContext; - glx.DestroyGLXPixmap = Fake_glXDestroyGLXPixmap; - glx.GetConfig = Fake_glXGetConfig; - /*glx.GetCurrentContext = Fake_glXGetCurrentContext;*/ - /*glx.GetCurrentDrawable = Fake_glXGetCurrentDrawable;*/ - glx.IsDirect = Fake_glXIsDirect; - glx.MakeCurrent = Fake_glXMakeCurrent; - glx.QueryExtension = Fake_glXQueryExtension; - glx.QueryVersion = Fake_glXQueryVersion; - glx.SwapBuffers = Fake_glXSwapBuffers; - glx.UseXFont = Fake_glXUseXFont; - glx.WaitGL = Fake_glXWaitGL; - glx.WaitX = Fake_glXWaitX; - - /*** GLX_VERSION_1_1 ***/ - glx.GetClientString = Fake_glXGetClientString; - glx.QueryExtensionsString = Fake_glXQueryExtensionsString; - glx.QueryServerString = Fake_glXQueryServerString; - - /*** GLX_VERSION_1_2 ***/ - /*glx.GetCurrentDisplay = Fake_glXGetCurrentDisplay;*/ - - /*** GLX_VERSION_1_3 ***/ - glx.ChooseFBConfig = Fake_glXChooseFBConfig; - glx.CreateNewContext = Fake_glXCreateNewContext; - glx.CreatePbuffer = Fake_glXCreatePbuffer; - glx.CreatePixmap = Fake_glXCreatePixmap; - glx.CreateWindow = Fake_glXCreateWindow; - glx.DestroyPbuffer = Fake_glXDestroyPbuffer; - glx.DestroyPixmap = Fake_glXDestroyPixmap; - glx.DestroyWindow = Fake_glXDestroyWindow; - /*glx.GetCurrentReadDrawable = Fake_glXGetCurrentReadDrawable;*/ - glx.GetFBConfigAttrib = Fake_glXGetFBConfigAttrib; - glx.GetFBConfigs = Fake_glXGetFBConfigs; - glx.GetSelectedEvent = Fake_glXGetSelectedEvent; - glx.GetVisualFromFBConfig = Fake_glXGetVisualFromFBConfig; - glx.MakeContextCurrent = Fake_glXMakeContextCurrent; - glx.QueryContext = Fake_glXQueryContext; - glx.QueryDrawable = Fake_glXQueryDrawable; - glx.SelectEvent = Fake_glXSelectEvent; - - /*** GLX_SGI_swap_control ***/ - glx.SwapIntervalSGI = Fake_glXSwapIntervalSGI; - - /*** GLX_SGI_video_sync ***/ - glx.GetVideoSyncSGI = Fake_glXGetVideoSyncSGI; - glx.WaitVideoSyncSGI = Fake_glXWaitVideoSyncSGI; - - /*** GLX_SGI_make_current_read ***/ - glx.MakeCurrentReadSGI = Fake_glXMakeCurrentReadSGI; - /*glx.GetCurrentReadDrawableSGI = Fake_glXGetCurrentReadDrawableSGI;*/ - -/*** GLX_SGIX_video_source ***/ -#if defined(_VL_H) - glx.CreateGLXVideoSourceSGIX = Fake_glXCreateGLXVideoSourceSGIX; - glx.DestroyGLXVideoSourceSGIX = Fake_glXDestroyGLXVideoSourceSGIX; -#endif - - /*** GLX_EXT_import_context ***/ - glx.FreeContextEXT = Fake_glXFreeContextEXT; - glx.GetContextIDEXT = Fake_glXGetContextIDEXT; - /*glx.GetCurrentDisplayEXT = Fake_glXGetCurrentDisplayEXT;*/ - glx.ImportContextEXT = Fake_glXImportContextEXT; - glx.QueryContextInfoEXT = Fake_glXQueryContextInfoEXT; - - /*** GLX_SGIX_fbconfig ***/ - glx.GetFBConfigAttribSGIX = Fake_glXGetFBConfigAttribSGIX; - glx.ChooseFBConfigSGIX = Fake_glXChooseFBConfigSGIX; - glx.CreateGLXPixmapWithConfigSGIX = Fake_glXCreateGLXPixmapWithConfigSGIX; - glx.CreateContextWithConfigSGIX = Fake_glXCreateContextWithConfigSGIX; - glx.GetVisualFromFBConfigSGIX = Fake_glXGetVisualFromFBConfigSGIX; - glx.GetFBConfigFromVisualSGIX = Fake_glXGetFBConfigFromVisualSGIX; - - /*** GLX_SGIX_pbuffer ***/ - glx.CreateGLXPbufferSGIX = Fake_glXCreateGLXPbufferSGIX; - glx.DestroyGLXPbufferSGIX = Fake_glXDestroyGLXPbufferSGIX; - glx.QueryGLXPbufferSGIX = Fake_glXQueryGLXPbufferSGIX; - glx.SelectEventSGIX = Fake_glXSelectEventSGIX; - glx.GetSelectedEventSGIX = Fake_glXGetSelectedEventSGIX; - - /*** GLX_SGI_cushion ***/ - glx.CushionSGI = Fake_glXCushionSGI; - - /*** GLX_SGIX_video_resize ***/ - glx.BindChannelToWindowSGIX = Fake_glXBindChannelToWindowSGIX; - glx.ChannelRectSGIX = Fake_glXChannelRectSGIX; - glx.QueryChannelRectSGIX = Fake_glXQueryChannelRectSGIX; - glx.QueryChannelDeltasSGIX = Fake_glXQueryChannelDeltasSGIX; - glx.ChannelRectSyncSGIX = Fake_glXChannelRectSyncSGIX; - - /*** GLX_SGIX_dmbuffer **/ -#if defined(_DM_BUFFER_H_) - glx.AssociateDMPbufferSGIX = NULL; -#endif - - /*** GLX_SGIX_swap_group ***/ - glx.JoinSwapGroupSGIX = Fake_glXJoinSwapGroupSGIX; - - /*** GLX_SGIX_swap_barrier ***/ - glx.BindSwapBarrierSGIX = Fake_glXBindSwapBarrierSGIX; - glx.QueryMaxSwapBarriersSGIX = Fake_glXQueryMaxSwapBarriersSGIX; - - /*** GLX_SUN_get_transparent_index ***/ - glx.GetTransparentIndexSUN = Fake_glXGetTransparentIndexSUN; - - /*** GLX_MESA_copy_sub_buffer ***/ - glx.CopySubBufferMESA = Fake_glXCopySubBufferMESA; - - /*** GLX_MESA_release_buffers ***/ - glx.ReleaseBuffersMESA = Fake_glXReleaseBuffersMESA; - - /*** GLX_MESA_pixmap_colormap ***/ - glx.CreateGLXPixmapMESA = Fake_glXCreateGLXPixmapMESA; - - /*** GLX_MESA_set_3dfx_mode ***/ - glx.Set3DfxModeMESA = Fake_glXSet3DfxModeMESA; - - /*** GLX_NV_vertex_array_range ***/ - glx.AllocateMemoryNV = Fake_glXAllocateMemoryNV; - glx.FreeMemoryNV = Fake_glXFreeMemoryNV; - - /*** GLX_MESA_agp_offset ***/ - glx.GetAGPOffsetMESA = Fake_glXGetAGPOffsetMESA; - - /*** GLX_EXT_texture_from_pixmap ***/ - glx.BindTexImageEXT = Fake_glXBindTexImageEXT; - glx.ReleaseTexImageEXT = Fake_glXReleaseTexImageEXT; - - return &glx; -} |