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Diffstat (limited to 'src/mesa/drivers/x11/xm_dd.c')
-rw-r--r--src/mesa/drivers/x11/xm_dd.c745
1 files changed, 361 insertions, 384 deletions
diff --git a/src/mesa/drivers/x11/xm_dd.c b/src/mesa/drivers/x11/xm_dd.c
index 0588694ace8..f9eb877db97 100644
--- a/src/mesa/drivers/x11/xm_dd.c
+++ b/src/mesa/drivers/x11/xm_dd.c
@@ -31,6 +31,7 @@
#include "depth.h"
#include "drawpix.h"
#include "extensions.h"
+#include "framebuffer.h"
#include "macros.h"
#include "image.h"
#include "imports.h"
@@ -43,9 +44,7 @@
#include "xmesaP.h"
#include "array_cache/acache.h"
#include "swrast/swrast.h"
-#include "swrast/s_auxbuffer.h"
#include "swrast/s_context.h"
-#include "swrast/s_alphabuf.h"
#include "swrast_setup/swrast_setup.h"
#include "tnl/tnl.h"
#include "tnl/t_context.h"
@@ -106,8 +105,8 @@ get_buffer_size( GLframebuffer *buffer, GLuint *width, GLuint *height )
unsigned int winwidth, winheight;
#ifdef XFree86Server
/* XFree86 GLX renderer */
- winwidth = MIN2(xmBuffer->frontbuffer->width, MAX_WIDTH);
- winheight = MIN2(xmBuffer->frontbuffer->height, MAX_HEIGHT);
+ winwidth = MIN2(xmBuffer->frontxrb->pixmap->width, MAX_WIDTH);
+ winheight = MIN2(xmBuffer->frontxrb->pixmap->height, MAX_HEIGHT);
#else
Window root;
int winx, winy;
@@ -115,7 +114,7 @@ get_buffer_size( GLframebuffer *buffer, GLuint *width, GLuint *height )
_glthread_LOCK_MUTEX(_xmesa_lock);
XSync(xmBuffer->xm_visual->display, 0); /* added for Chromium */
- XGetGeometry( xmBuffer->xm_visual->display, xmBuffer->frontbuffer, &root,
+ XGetGeometry( xmBuffer->xm_visual->display, xmBuffer->frontxrb->pixmap, &root,
&winx, &winy, &winwidth, &winheight, &bw, &d );
_glthread_UNLOCK_MUTEX(_xmesa_lock);
#endif
@@ -152,29 +151,36 @@ finish_or_flush( GLcontext *ctx )
void
xmesa_set_buffer( GLcontext *ctx, GLframebuffer *buffer, GLuint bufferBit )
{
+#if 000
/* We can make this cast since the XMesaBuffer wraps GLframebuffer.
* GLframebuffer is the first member in a XMesaBuffer struct.
*/
XMesaBuffer target = (XMesaBuffer) buffer;
const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+#if NEW_RENDERBUFFER
+ if (buffer->Name != 0)
+ return;
+#endif
+
/* This assignment tells the span/point/line/triangle functions
* which XMesaBuffer to use.
*/
- xmesa->xm_buffer = target;
+ /* xmesa->xm_buffer = target;*/
/*
* Now determine front vs back color buffer.
*/
- if (bufferBit == DD_FRONT_LEFT_BIT) {
- target->buffer = target->frontbuffer;
+ if (bufferBit == BUFFER_BIT_FRONT_LEFT) {
+ target->buffer = target->frontxrb->pixmap;
+ printf("set get/put!\n");
xmesa_update_span_funcs(ctx);
}
- else if (bufferBit == DD_BACK_LEFT_BIT) {
+ else if (bufferBit == BUFFER_BIT_BACK_LEFT) {
ASSERT(target->db_state);
- if (target->backpixmap) {
+ if (target->backxrb->pixmap) {
/* back buffer is a pixmap */
- target->buffer = (XMesaDrawable) target->backpixmap;
+ target->buffer = (XMesaDrawable) target->backxrb->pixmap;
}
else if (target->backimage) {
/* back buffer is an XImage */
@@ -182,17 +188,19 @@ xmesa_set_buffer( GLcontext *ctx, GLframebuffer *buffer, GLuint bufferBit )
}
else {
/* No back buffer!!!! Must be out of memory, use front buffer */
- target->buffer = target->frontbuffer;
+ target->buffer = target->frontxrb->pixmap;
}
+ printf("set get/put!\n");
xmesa_update_span_funcs(ctx);
}
- else if (bufferBit & (DD_AUX0_BIT | DD_AUX1_BIT | DD_AUX2_BIT | DD_AUX3_BIT)) {
- _swrast_use_aux_buffer(ctx, buffer, bufferBit);
+ else if (bufferBit & (BUFFER_BIT_AUX0 | BUFFER_BIT_AUX1 | BUFFER_BIT_AUX2 | BUFFER_BIT_AUX3)) {
+ /*_swrast_use_aux_buffer(ctx, buffer, bufferBit);*/
}
else {
_mesa_problem(ctx, "invalid buffer 0x%x in set_buffer() in xm_dd.c");
return;
}
+#endif
}
@@ -200,31 +208,37 @@ xmesa_set_buffer( GLcontext *ctx, GLframebuffer *buffer, GLuint bufferBit )
static void
clear_index( GLcontext *ctx, GLuint index )
{
- const XMesaContext xmesa = XMESA_CONTEXT(ctx);
- xmesa->clearpixel = (unsigned long) index;
- XMesaSetForeground( xmesa->display, xmesa->xm_draw_buffer->cleargc,
- (unsigned long) index );
+ if (ctx->DrawBuffer->Name == 0) {
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ XMesaBuffer xmbuf = XMESA_BUFFER(ctx->DrawBuffer);
+ xmesa->clearpixel = (unsigned long) index;
+ XMesaSetForeground( xmesa->display, xmbuf->cleargc, (unsigned long) index );
+ }
}
static void
clear_color( GLcontext *ctx, const GLfloat color[4] )
{
- const XMesaContext xmesa = XMESA_CONTEXT(ctx);
- CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[0], color[0]);
- CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[1], color[1]);
- CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[2], color[2]);
- CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[3], color[3]);
- xmesa->clearpixel = xmesa_color_to_pixel( xmesa,
- xmesa->clearcolor[0],
- xmesa->clearcolor[1],
- xmesa->clearcolor[2],
- xmesa->clearcolor[3],
- xmesa->xm_visual->undithered_pf );
- _glthread_LOCK_MUTEX(_xmesa_lock);
- XMesaSetForeground( xmesa->display, xmesa->xm_draw_buffer->cleargc,
- xmesa->clearpixel );
- _glthread_UNLOCK_MUTEX(_xmesa_lock);
+ if (ctx->DrawBuffer->Name == 0) {
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ XMesaBuffer xmbuf = XMESA_BUFFER(ctx->DrawBuffer);
+
+ CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[0], color[0]);
+ CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[1], color[1]);
+ CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[2], color[2]);
+ CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[3], color[3]);
+ xmesa->clearpixel = xmesa_color_to_pixel( ctx,
+ xmesa->clearcolor[0],
+ xmesa->clearcolor[1],
+ xmesa->clearcolor[2],
+ xmesa->clearcolor[3],
+ xmesa->xm_visual->undithered_pf );
+ _glthread_LOCK_MUTEX(_xmesa_lock);
+ XMesaSetForeground( xmesa->display, xmbuf->cleargc,
+ xmesa->clearpixel );
+ _glthread_UNLOCK_MUTEX(_xmesa_lock);
+ }
}
@@ -234,7 +248,9 @@ static void
index_mask( GLcontext *ctx, GLuint mask )
{
const XMesaContext xmesa = XMESA_CONTEXT(ctx);
- if (xmesa->xm_draw_buffer->buffer != XIMAGE) {
+ XMesaBuffer xmbuf = XMESA_BUFFER(ctx->DrawBuffer);
+ /* not sure this conditional is really needed */
+ if (xmbuf->backxrb && xmbuf->backxrb->pixmap) {
unsigned long m;
if (mask==0xffffffff) {
m = ((unsigned long)~0L);
@@ -242,8 +258,8 @@ index_mask( GLcontext *ctx, GLuint mask )
else {
m = (unsigned long) mask;
}
- XMesaSetPlaneMask( xmesa->display, xmesa->xm_draw_buffer->cleargc, m );
- XMesaSetPlaneMask( xmesa->display, xmesa->xm_draw_buffer->gc, m );
+ XMesaSetPlaneMask( xmesa->display, xmbuf->cleargc, m );
+ XMesaSetPlaneMask( xmesa->display, xmbuf->gc, m );
}
}
@@ -254,6 +270,7 @@ color_mask(GLcontext *ctx,
GLboolean rmask, GLboolean gmask, GLboolean bmask, GLboolean amask)
{
const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ XMesaBuffer xmbuf = XMESA_BUFFER(ctx->DrawBuffer);
const int xclass = xmesa->xm_visual->mesa_visual.visualType;
(void) amask;
@@ -268,8 +285,8 @@ color_mask(GLcontext *ctx,
if (gmask) m |= GET_GREENMASK(xmesa->xm_visual);
if (bmask) m |= GET_BLUEMASK(xmesa->xm_visual);
}
- XMesaSetPlaneMask( xmesa->display, xmesa->xm_draw_buffer->cleargc, m );
- XMesaSetPlaneMask( xmesa->display, xmesa->xm_draw_buffer->gc, m );
+ XMesaSetPlaneMask( xmesa->display, xmbuf->cleargc, m );
+ XMesaSetPlaneMask( xmesa->display, xmbuf->gc, m );
}
}
@@ -280,62 +297,45 @@ color_mask(GLcontext *ctx,
/**********************************************************************/
+/**
+ * Clear the front or back color buffer, if it's implemented with a pixmap.
+ */
static void
-clear_front_pixmap( GLcontext *ctx, GLboolean all,
- GLint x, GLint y, GLint width, GLint height )
+clear_pixmap(GLcontext *ctx, struct xmesa_renderbuffer *xrb, GLboolean all,
+ GLint x, GLint y, GLint width, GLint height)
{
const XMesaContext xmesa = XMESA_CONTEXT(ctx);
- if (all) {
- XMesaFillRectangle( xmesa->display, xmesa->xm_draw_buffer->frontbuffer,
- xmesa->xm_draw_buffer->cleargc,
- 0, 0,
- xmesa->xm_draw_buffer->mesa_buffer.Width + 1,
- xmesa->xm_draw_buffer->mesa_buffer.Height + 1 );
- }
- else {
- XMesaFillRectangle( xmesa->display, xmesa->xm_draw_buffer->frontbuffer,
- xmesa->xm_draw_buffer->cleargc,
- x, xmesa->xm_draw_buffer->mesa_buffer.Height - y - height,
- width, height );
- }
-}
+ XMesaBuffer xmbuf = XMESA_BUFFER(ctx->DrawBuffer);
+ assert(xrb->pixmap == xmbuf->backxrb->pixmap ||
+ xrb->pixmap == xmbuf->frontxrb->pixmap);
-static void
-clear_back_pixmap( GLcontext *ctx, GLboolean all,
- GLint x, GLint y, GLint width, GLint height )
-{
- const XMesaContext xmesa = XMESA_CONTEXT(ctx);
if (all) {
- XMesaFillRectangle( xmesa->display, xmesa->xm_draw_buffer->backpixmap,
- xmesa->xm_draw_buffer->cleargc,
- 0, 0,
- xmesa->xm_draw_buffer->mesa_buffer.Width + 1,
- xmesa->xm_draw_buffer->mesa_buffer.Height + 1 );
+ XMesaFillRectangle( xmesa->display, xrb->pixmap, xmbuf->cleargc,
+ 0, 0, xrb->Base.Width + 1, xrb->Base.Height + 1 );
}
else {
- XMesaFillRectangle( xmesa->display, xmesa->xm_draw_buffer->backpixmap,
- xmesa->xm_draw_buffer->cleargc,
- x, xmesa->xm_draw_buffer->mesa_buffer.Height - y - height,
+ XMesaFillRectangle( xmesa->display, xrb->pixmap, xmbuf->cleargc,
+ x, xrb->Base.Height - y - height,
width, height );
}
}
static void
-clear_8bit_ximage( GLcontext *ctx, GLboolean all,
- GLint x, GLint y, GLint width, GLint height )
+clear_8bit_ximage( GLcontext *ctx, struct xmesa_renderbuffer *xrb,
+ GLboolean all, GLint x, GLint y, GLint width, GLint height )
{
const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+
if (all) {
- size_t n = xmesa->xm_draw_buffer->backimage->bytes_per_line
- * xmesa->xm_draw_buffer->backimage->height;
- MEMSET( xmesa->xm_draw_buffer->backimage->data, xmesa->clearpixel, n );
+ const size_t n = xrb->ximage->bytes_per_line * xrb->Base.Height;
+ MEMSET( xrb->ximage->data, xmesa->clearpixel, n );
}
else {
GLint i;
for (i=0;i<height;i++) {
- GLubyte *ptr = PIXELADDR1( xmesa->xm_draw_buffer, x, y+i );
+ GLubyte *ptr = PIXEL_ADDR1(xrb, x, y + i);
MEMSET( ptr, xmesa->clearpixel, width );
}
}
@@ -343,14 +343,15 @@ clear_8bit_ximage( GLcontext *ctx, GLboolean all,
static void
-clear_HPCR_ximage( GLcontext *ctx, GLboolean all,
- GLint x, GLint y, GLint width, GLint height )
+clear_HPCR_ximage( GLcontext *ctx, struct xmesa_renderbuffer *xrb,
+ GLboolean all, GLint x, GLint y, GLint width, GLint height )
{
const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+
if (all) {
- GLint i, c16 = (xmesa->xm_draw_buffer->backimage->bytes_per_line>>4)<<4;
- GLubyte *ptr = (GLubyte *)xmesa->xm_draw_buffer->backimage->data;
- for (i=0; i<xmesa->xm_draw_buffer->backimage->height; i++) {
+ GLint i, c16 = (xrb->ximage->bytes_per_line>>4)<<4;
+ GLubyte *ptr = (GLubyte *) xrb->ximage->data;
+ for (i = 0; i < xrb->Base.Height; i++) {
GLint j;
GLubyte *sptr = xmesa->xm_visual->hpcr_clear_ximage_pattern[0];
if (i&1) {
@@ -375,7 +376,7 @@ clear_HPCR_ximage( GLcontext *ctx, GLboolean all,
ptr[15] = sptr[15];
ptr += 16;
}
- for (; j<xmesa->xm_draw_buffer->backimage->bytes_per_line; j++) {
+ for (; j < xrb->ximage->bytes_per_line; j++) {
*ptr = sptr[j&15];
ptr++;
}
@@ -384,9 +385,9 @@ clear_HPCR_ximage( GLcontext *ctx, GLboolean all,
else {
GLint i;
for (i=y; i<y+height; i++) {
- GLubyte *ptr = PIXELADDR1( xmesa->xm_draw_buffer, x, i );
+ GLubyte *ptr = PIXEL_ADDR1( xrb, x, i );
int j;
- GLubyte *sptr = xmesa->xm_visual->hpcr_clear_ximage_pattern[0];
+ const GLubyte *sptr = xmesa->xm_visual->hpcr_clear_ximage_pattern[0];
if (i&1) {
sptr += 16;
}
@@ -400,41 +401,40 @@ clear_HPCR_ximage( GLcontext *ctx, GLboolean all,
static void
-clear_16bit_ximage( GLcontext *ctx, GLboolean all,
- GLint x, GLint y, GLint width, GLint height )
+clear_16bit_ximage( GLcontext *ctx, struct xmesa_renderbuffer *xrb,
+ GLboolean all, GLint x, GLint y, GLint width, GLint height)
{
const XMesaContext xmesa = XMESA_CONTEXT(ctx);
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_draw_buffer->backimage->data;
+ GLuint *ptr4 = (GLuint *) xrb->ximage->data;
if ((pixel & 0xff) == ((pixel >> 8) & 0xff)) {
/* low and high bytes are equal so use memset() */
- n = xmesa->xm_draw_buffer->backimage->bytes_per_line
- * xmesa->xm_draw_buffer->mesa_buffer.Height;
+ const GLuint n = xrb->ximage->bytes_per_line * xrb->Base.Height;
MEMSET( ptr4, pixel & 0xff, n );
}
else {
+ const GLuint n = xrb->ximage->bytes_per_line * xrb->Base.Height / 4;
+ GLuint i;
pixel = pixel | (pixel<<16);
- n = xmesa->xm_draw_buffer->backimage->bytes_per_line
- * xmesa->xm_draw_buffer->mesa_buffer.Height / 4;
- do {
- *ptr4++ = pixel;
- n--;
- } while (n!=0);
-
- if ((xmesa->xm_draw_buffer->backimage->bytes_per_line *
- xmesa->xm_draw_buffer->mesa_buffer.Height) & 0x2)
+ for (i = 0; i < n; i++) {
+ ptr4[i] = pixel;
+ }
+ ptr4 += n;
+ /* might be one last GLushort to set */
+ if ((xrb->ximage->bytes_per_line * xrb->Base.Height) & 0x2)
*(GLushort *)ptr4 = pixel & 0xffff;
}
}
else {
- register int i, j;
+ GLint i, j;
for (j=0;j<height;j++) {
- register GLushort *ptr2 = PIXELADDR2( xmesa->xm_draw_buffer, x, y+j );
+ GLushort *ptr2 = PIXEL_ADDR2(xrb, x, y + j);
for (i=0;i<width;i++) {
*ptr2++ = pixel;
}
@@ -445,41 +445,32 @@ clear_16bit_ximage( GLcontext *ctx, GLboolean all,
/* 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 )
+clear_24bit_ximage(GLcontext *ctx, struct xmesa_renderbuffer *xrb,
+ GLboolean all, GLint x, GLint y, GLint width, GLint height)
{
const XMesaContext xmesa = XMESA_CONTEXT(ctx);
const GLubyte r = xmesa->clearcolor[0];
const GLubyte g = xmesa->clearcolor[1];
const GLubyte b = xmesa->clearcolor[2];
-#if 0 /* See below */
- register GLuint clearPixel;
- if (xmesa->swapbytes) {
- clearPixel = (b << 16) | (g << 8) | r;
- }
- else {
- clearPixel = (r << 16) | (g << 8) | b;
- }
-#endif
if (all) {
- if (r==g && g==b) {
+ if (r == g && g == b) {
/* same value for all three components (gray) */
- const GLint w3 = xmesa->xm_draw_buffer->mesa_buffer.Width * 3;
- const GLint h = xmesa->xm_draw_buffer->mesa_buffer.Height;
+ const GLint w3 = xrb->Base.Width * 3;
+ const GLint h = xrb->Base.Height;
GLint i;
for (i = 0; i < h; i++) {
- bgr_t *ptr3 = PIXELADDR3(xmesa->xm_draw_buffer, 0, i);
+ bgr_t *ptr3 = PIXEL_ADDR3(xrb, 0, i);
MEMSET(ptr3, r, w3);
}
}
else {
/* the usual case */
- const GLint w = xmesa->xm_draw_buffer->mesa_buffer.Width;
- const GLint h = xmesa->xm_draw_buffer->mesa_buffer.Height;
+ const GLint w = xrb->Base.Width;
+ const GLint h = xrb->Base.Height;
GLint i, j;
for (i = 0; i < h; i++) {
- bgr_t *ptr3 = PIXELADDR3(xmesa->xm_draw_buffer, 0, i);
+ bgr_t *ptr3 = PIXEL_ADDR3(xrb, 0, i);
for (j = 0; j < w; j++) {
ptr3->r = r;
ptr3->g = g;
@@ -487,83 +478,15 @@ clear_24bit_ximage( GLcontext *ctx, GLboolean all,
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) {
+ 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_draw_buffer, x, y+j );
+ bgr_t *ptr3 = PIXEL_ADDR3(xrb, x, y + j);
MEMSET(ptr3, r, 3 * width);
}
}
@@ -571,7 +494,7 @@ clear_24bit_ximage( GLcontext *ctx, GLboolean all,
/* non-gray clear color */
GLint i, j;
for (j = 0; j < height; j++) {
- bgr_t *ptr3 = PIXELADDR3( xmesa->xm_draw_buffer, x, y+j );
+ bgr_t *ptr3 = PIXEL_ADDR3(xrb, x, y + j);
for (i = 0; i < width; i++) {
ptr3->r = r;
ptr3->g = g;
@@ -579,115 +502,43 @@ clear_24bit_ximage( GLcontext *ctx, GLboolean all,
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_draw_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 )
+clear_32bit_ximage(GLcontext *ctx, struct xmesa_renderbuffer *xrb,
+ GLboolean all, GLint x, GLint y, GLint width, GLint height)
{
const XMesaContext xmesa = XMESA_CONTEXT(ctx);
register GLuint pixel = (GLuint) xmesa->clearpixel;
+
if (xmesa->swapbytes) {
pixel = ((pixel >> 24) & 0x000000ff)
| ((pixel >> 8) & 0x0000ff00)
| ((pixel << 8) & 0x00ff0000)
| ((pixel << 24) & 0xff000000);
}
+
if (all) {
- register GLint n = xmesa->xm_draw_buffer->mesa_buffer.Width
- * xmesa->xm_draw_buffer->mesa_buffer.Height;
- register GLuint *ptr4 = (GLuint *) xmesa->xm_draw_buffer->backimage->data;
- if (pixel==0) {
- MEMSET( ptr4, pixel, 4*n );
+ const GLuint n = xrb->Base.Width * xrb->Base.Height;
+ GLuint *ptr4 = (GLuint *) xrb->ximage->data;
+ if (pixel == 0) {
+ _mesa_memset(ptr4, pixel, 4 * n);
}
else {
- do {
- *ptr4++ = pixel;
- n--;
- } while (n!=0);
+ GLuint i;
+ for (i = 0; i < n; i++)
+ ptr4[i] = pixel;
}
}
else {
- register int i, j;
- for (j=0;j<height;j++) {
- register GLuint *ptr4 = PIXELADDR4( xmesa->xm_draw_buffer, x, y+j );
- for (i=0;i<width;i++) {
- *ptr4++ = pixel;
+ GLint i, j;
+ for (j = 0; j < height; j++) {
+ GLuint *ptr4 = PIXEL_ADDR4(xrb, x, y + j);
+ for (i = 0; i < width; i++) {
+ ptr4[i] = pixel;
}
}
}
@@ -695,18 +546,18 @@ clear_32bit_ximage( GLcontext *ctx, GLboolean all,
static void
-clear_nbit_ximage( GLcontext *ctx, GLboolean all,
- GLint x, GLint y, GLint width, GLint height )
+clear_nbit_ximage(GLcontext *ctx, struct xmesa_renderbuffer *xrb,
+ GLboolean all, GLint x, GLint y, GLint width, GLint height)
{
const XMesaContext xmesa = XMESA_CONTEXT(ctx);
- XMesaImage *img = xmesa->xm_draw_buffer->backimage;
- register int i, j;
+ XMesaImage *img = xrb->ximage;
+ GLint i, j;
/* We can ignore 'all' here - x, y, width, height are always right */
(void) all;
/* TODO: optimize this */
- y = FLIP(xmesa->xm_draw_buffer, y);
+ y = YFLIP(xrb, y);
for (j = 0; j < height; j++) {
for (i = 0; i < width; i++) {
XMesaPutPixel(img, x+i, y-j, xmesa->clearpixel);
@@ -720,78 +571,62 @@ static void
clear_buffers( GLcontext *ctx, GLbitfield mask,
GLboolean all, GLint x, GLint y, GLint width, GLint height )
{
- const XMesaContext xmesa = XMESA_CONTEXT(ctx);
- const GLuint *colorMask = (GLuint *) &ctx->Color.ColorMask;
-
- if ((mask & (DD_FRONT_LEFT_BIT | DD_BACK_LEFT_BIT)) &&
- xmesa->xm_draw_buffer->mesa_buffer.UseSoftwareAlphaBuffers &&
- ctx->Color.ColorMask[ACOMP]) {
- _swrast_clear_alpha_buffers(ctx);
- }
-
- /* we can't handle color or index masking */
- if (*colorMask == 0xffffffff && ctx->Color.IndexMask == 0xffffffff) {
- if (mask & DD_FRONT_LEFT_BIT) {
- ASSERT(xmesa->xm_draw_buffer->front_clear_func);
- (*xmesa->xm_draw_buffer->front_clear_func)( ctx, all, x, y, width, height );
- mask &= ~DD_FRONT_LEFT_BIT;
- }
- if (mask & DD_BACK_LEFT_BIT) {
- ASSERT(xmesa->xm_draw_buffer->back_clear_func);
- (*xmesa->xm_draw_buffer->back_clear_func)( ctx, all, x, y, width, height );
- mask &= ~DD_BACK_LEFT_BIT;
+ if (ctx->DrawBuffer->Name == 0) {
+ /* this is a window system framebuffer */
+ const GLuint *colorMask = (GLuint *) &ctx->Color.ColorMask;
+ XMesaBuffer b = (XMesaBuffer) ctx->DrawBuffer;
+
+ /* we can't handle color or index masking */
+ if (*colorMask == 0xffffffff && ctx->Color.IndexMask == 0xffffffff) {
+ if (mask & BUFFER_BIT_FRONT_LEFT) {
+ /* clear front color buffer */
+ if (b->frontxrb == (struct xmesa_renderbuffer *)
+ ctx->DrawBuffer->Attachment[BUFFER_FRONT_LEFT].Renderbuffer) {
+ /* renderbuffer is not wrapped - great! */
+ b->frontxrb->clearFunc(ctx, b->frontxrb, all, x, y,
+ width, height);
+ mask &= ~BUFFER_BIT_FRONT_LEFT;
+ }
+ else {
+ /* we can't directly clear an alpha-wrapped color buffer */
+ }
+ }
+ if (mask & BUFFER_BIT_BACK_LEFT) {
+ /* clear back color buffer */
+ if (b->backxrb == (struct xmesa_renderbuffer *)
+ ctx->DrawBuffer->Attachment[BUFFER_BACK_LEFT].Renderbuffer) {
+ /* renderbuffer is not wrapped - great! */
+ b->backxrb->clearFunc(ctx, b->backxrb, all, x, y,
+ width, height);
+ mask &= ~BUFFER_BIT_BACK_LEFT;
+ }
+ }
}
}
-
if (mask)
_swrast_Clear( ctx, mask, all, x, y, width, height );
}
-/*
- * When we detect that the user has resized the window this function will
- * get called. Here we'll reallocate the back buffer, depth buffer,
- * stencil buffer etc. to match the new window size.
- * The buffer->Width and buffer->Height values will indicate the new size.
+/**
+ * Called by ctx->Driver.ResizeBuffers()
+ * Resize the front/back colorbuffers to match the latest window size.
*/
void
-xmesa_resize_buffers( GLframebuffer *buffer )
+xmesa_resize_buffers(GLcontext *ctx, GLframebuffer *buffer,
+ GLuint width, GLuint height)
{
- int height = (int) buffer->Height;
/* We can do this cast because the first field in the XMesaBuffer
* struct is a GLframebuffer struct. If this weren't true, we'd
* need a pointer from the GLframebuffer to the XMesaBuffer.
*/
XMesaBuffer xmBuffer = (XMesaBuffer) buffer;
- xmesa_alloc_back_buffer( xmBuffer );
-
- /* Needed by FLIP macro */
- xmBuffer->bottom = height - 1;
+ xmesa_alloc_back_buffer(xmBuffer, width, height);
- if (xmBuffer->backimage) {
- /* Needed by PIXELADDR1 macro */
- xmBuffer->ximage_width1 = xmBuffer->backimage->bytes_per_line;
- xmBuffer->ximage_origin1 = (GLubyte *) xmBuffer->backimage->data
- + xmBuffer->ximage_width1 * (height-1);
-
- /* Needed by PIXELADDR2 macro */
- xmBuffer->ximage_width2 = xmBuffer->backimage->bytes_per_line / 2;
- xmBuffer->ximage_origin2 = (GLushort *) xmBuffer->backimage->data
- + xmBuffer->ximage_width2 * (height-1);
-
- /* Needed by PIXELADDR3 macro */
- xmBuffer->ximage_width3 = xmBuffer->backimage->bytes_per_line;
- xmBuffer->ximage_origin3 = (GLubyte *) xmBuffer->backimage->data
- + xmBuffer->ximage_width3 * (height-1);
-
- /* Needed by PIXELADDR4 macro */
- xmBuffer->ximage_width4 = xmBuffer->backimage->width;
- xmBuffer->ximage_origin4 = (GLuint *) xmBuffer->backimage->data
- + xmBuffer->ximage_width4 * (height-1);
- }
-
- _swrast_alloc_buffers( buffer );
+#if NEW_RENDERBUFFER
+ _mesa_resize_framebuffer(ctx, buffer, width, height);
+#endif
}
@@ -810,11 +645,14 @@ xmesa_DrawPixels_8R8G8B( GLcontext *ctx,
const struct gl_pixelstore_attrib *unpack,
const GLvoid *pixels )
{
+ struct xmesa_renderbuffer *xrb
+ = (struct xmesa_renderbuffer *) ctx->DrawBuffer->_ColorDrawBuffers[0][0];
+
const XMesaContext xmesa = XMESA_CONTEXT(ctx);
const SWcontext *swrast = SWRAST_CONTEXT( ctx );
XMesaDisplay *dpy = xmesa->xm_visual->display;
- const XMesaDrawable buffer = xmesa->xm_draw_buffer->buffer;
- const XMesaGC gc = xmesa->xm_draw_buffer->gc;
+ XMesaBuffer xmbuf = XMESA_BUFFER(ctx->DrawBuffer);
+ const XMesaGC gc = xmbuf->gc;
ASSERT(dpy);
ASSERT(gc);
@@ -824,7 +662,7 @@ xmesa_DrawPixels_8R8G8B( GLcontext *ctx,
if (swrast->NewState)
_swrast_validate_derived( ctx );
- if (buffer && /* buffer != 0 means it's a Window or Pixmap */
+ if (xrb->pixmap &&
format == GL_BGRA &&
type == GL_UNSIGNED_BYTE &&
(swrast->_RasterMask & ~CLIP_BIT) == 0 && /* no blend, z-test, etc */
@@ -882,8 +720,8 @@ xmesa_DrawPixels_8R8G8B( GLcontext *ctx,
ximage.bits_per_pixel = 32;
/* it seems we don't need to set the ximage.red/green/blue_mask fields */
/* flip Y axis for dest position */
- dstY = FLIP(xmesa->xm_draw_buffer, dstY) - h + 1;
- XPutImage(dpy, buffer, gc, &ximage, 0, 0, dstX, dstY, w, h);
+ dstY = YFLIP(xrb, dstY) - h + 1;
+ XPutImage(dpy, xrb->pixmap, gc, &ximage, 0, 0, dstX, dstY, w, h);
}
if (unpack->BufferObj->Name) {
@@ -913,11 +751,13 @@ xmesa_DrawPixels_5R6G5B( GLcontext *ctx,
const struct gl_pixelstore_attrib *unpack,
const GLvoid *pixels )
{
+ struct xmesa_renderbuffer *xrb
+ = (struct xmesa_renderbuffer *) ctx->DrawBuffer->_ColorDrawBuffers[0][0];
const XMesaContext xmesa = XMESA_CONTEXT(ctx);
const SWcontext *swrast = SWRAST_CONTEXT( ctx );
XMesaDisplay *dpy = xmesa->xm_visual->display;
- const XMesaDrawable buffer = xmesa->xm_draw_buffer->buffer;
- const XMesaGC gc = xmesa->xm_draw_buffer->gc;
+ XMesaBuffer xmbuf = XMESA_BUFFER(ctx->DrawBuffer);
+ const XMesaGC gc = xmbuf->gc;
ASSERT(dpy);
ASSERT(gc);
@@ -926,7 +766,7 @@ xmesa_DrawPixels_5R6G5B( GLcontext *ctx,
if (swrast->NewState)
_swrast_validate_derived( ctx );
- if (buffer && /* buffer != 0 means it's a Window or Pixmap */
+ if (xrb->pixmap &&
format == GL_RGB &&
type == GL_UNSIGNED_SHORT_5_6_5 &&
!ctx->Color.DitherFlag && /* no dithering */
@@ -985,8 +825,8 @@ xmesa_DrawPixels_5R6G5B( GLcontext *ctx,
ximage.bits_per_pixel = 16;
/* it seems we don't need to set the ximage.red/green/blue_mask fields */
/* flip Y axis for dest position */
- dstY = FLIP(xmesa->xm_draw_buffer, dstY) - h + 1;
- XPutImage(dpy, buffer, gc, &ximage, 0, 0, dstX, dstY, w, h);
+ dstY = YFLIP(xrb, dstY) - h + 1;
+ XPutImage(dpy, xrb->pixmap, gc, &ximage, 0, 0, dstX, dstY, w, h);
}
if (unpack->BufferObj->Name) {
@@ -1016,9 +856,11 @@ xmesa_CopyPixels( GLcontext *ctx,
const XMesaContext xmesa = XMESA_CONTEXT(ctx);
const SWcontext *swrast = SWRAST_CONTEXT( ctx );
XMesaDisplay *dpy = xmesa->xm_visual->display;
- const XMesaDrawable drawBuffer = xmesa->xm_draw_buffer->buffer;
- const XMesaDrawable readBuffer = xmesa->xm_read_buffer->buffer;
- const XMesaGC gc = xmesa->xm_draw_buffer->gc;
+ const XMesaGC gc = ((XMesaBuffer) ctx->DrawBuffer)->gc;
+ struct xmesa_renderbuffer *srcXrb = (struct xmesa_renderbuffer *)
+ ctx->ReadBuffer->_ColorReadBuffer;
+ struct xmesa_renderbuffer *dstXrb = (struct xmesa_renderbuffer *)
+ ctx->DrawBuffer->_ColorDrawBuffers[0][0];
ASSERT(dpy);
ASSERT(gc);
@@ -1028,8 +870,8 @@ xmesa_CopyPixels( GLcontext *ctx,
if (ctx->Color.DrawBuffer[0] == GL_FRONT &&
ctx->Pixel.ReadBuffer == GL_FRONT &&
- drawBuffer && /* buffer != 0 means it's a Window or Pixmap */
- readBuffer &&
+ srcXrb->pixmap &&
+ dstXrb->pixmap &&
type == GL_COLOR &&
(swrast->_RasterMask & ~CLIP_BIT) == 0 && /* no blend, z-test, etc */
ctx->_ImageTransferState == 0 && /* no color tables, scale/bias, etc */
@@ -1038,9 +880,9 @@ xmesa_CopyPixels( GLcontext *ctx,
/* Note: we don't do any special clipping work here. We could,
* but X will do it for us.
*/
- srcy = FLIP(xmesa->xm_read_buffer, srcy) - height + 1;
- desty = FLIP(xmesa->xm_draw_buffer, desty) - height + 1;
- XCopyArea(dpy, readBuffer, drawBuffer, gc,
+ srcy = YFLIP(srcXrb, srcy) - height + 1;
+ desty = YFLIP(dstXrb, desty) - height + 1;
+ XCopyArea(dpy, srcXrb->pixmap, dstXrb->pixmap, gc,
srcx, srcy, width, height, destx, desty);
}
else {
@@ -1100,9 +942,89 @@ enable( GLcontext *ctx, GLenum pname, GLboolean state )
}
-void xmesa_update_state( GLcontext *ctx, GLuint new_state )
+static void
+clear_color_HPCR_ximage( GLcontext *ctx, const GLfloat color[4] )
+{
+ int i;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+
+ CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[0], color[0]);
+ CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[1], color[1]);
+ CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[2], color[2]);
+ CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[3], color[3]);
+
+ if (color[0] == 0.0 && color[1] == 0.0 && color[2] == 0.0) {
+ /* 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,
+ xmesa->clearcolor[0],
+ xmesa->clearcolor[1],
+ xmesa->clearcolor[2]);
+ xmesa->xm_visual->hpcr_clear_ximage_pattern[1][i] =
+ DITHER_HPCR(i, 1,
+ xmesa->clearcolor[0],
+ xmesa->clearcolor[1],
+ xmesa->clearcolor[2]);
+ }
+ }
+}
+
+
+static void
+clear_color_HPCR_pixmap( GLcontext *ctx, const GLfloat color[4] )
+{
+ int i;
+ const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+
+ CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[0], color[0]);
+ CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[1], color[1]);
+ CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[2], color[2]);
+ CLAMPED_FLOAT_TO_UBYTE(xmesa->clearcolor[3], color[3]);
+
+ if (color[0] == 0.0 && color[1] == 0.0 && color[2] == 0.0) {
+ /* 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,
+ xmesa->clearcolor[0],
+ xmesa->clearcolor[1],
+ xmesa->clearcolor[2]));
+ XMesaPutPixel(xmesa->xm_visual->hpcr_clear_ximage, i, 1,
+ DITHER_HPCR(i, 1,
+ xmesa->clearcolor[0],
+ xmesa->clearcolor[1],
+ xmesa->clearcolor[2]));
+ }
+ }
+ /* change tile pixmap content */
+ XMesaPutImage(xmesa->display,
+ (XMesaDrawable)xmesa->xm_visual->hpcr_clear_pixmap,
+ XMESA_BUFFER(ctx->DrawBuffer)->cleargc,
+ xmesa->xm_visual->hpcr_clear_ximage, 0, 0, 0, 0, 16, 2);
+}
+
+
+/**
+ * Called when the driver should update it's state, based on the new_state
+ * flags.
+ */
+void
+xmesa_update_state( GLcontext *ctx, GLuint new_state )
{
const XMesaContext xmesa = XMESA_CONTEXT(ctx);
+ struct xmesa_renderbuffer *front_xrb, *back_xrb;
/* Propagate statechange information to swrast and swrast_setup
* modules. The X11 driver has no internal GL-dependent state.
@@ -1112,40 +1034,76 @@ void xmesa_update_state( GLcontext *ctx, GLuint new_state )
_tnl_InvalidateState( ctx, new_state );
_swsetup_InvalidateState( ctx, new_state );
+ if (ctx->DrawBuffer->Name != 0)
+ return;
- /* setup pointers to front and back buffer clear functions */
- xmesa->xm_draw_buffer->front_clear_func = clear_front_pixmap;
- if (xmesa->xm_draw_buffer->backpixmap != XIMAGE) {
- xmesa->xm_draw_buffer->back_clear_func = clear_back_pixmap;
+ front_xrb = XMESA_BUFFER(ctx->DrawBuffer)->frontxrb;
+ if (front_xrb) {
+ /* XXX check for relevant new_state flags */
+ xmesa_set_renderbuffer_funcs(front_xrb, xmesa->pixelformat,
+ xmesa->xm_visual->BitsPerPixel);
+ /* setup pointers to front and back buffer clear functions */
+ front_xrb->clearFunc = clear_pixmap;
}
- else {
- switch (xmesa->xm_visual->BitsPerPixel) {
- case 8:
- if (xmesa->xm_visual->hpcr_clear_flag) {
- xmesa->xm_draw_buffer->back_clear_func = clear_HPCR_ximage;
- }
- else {
- xmesa->xm_draw_buffer->back_clear_func = clear_8bit_ximage;
+
+ back_xrb = XMESA_BUFFER(ctx->DrawBuffer)->backxrb;
+ if (back_xrb) {
+ XMesaBuffer xmbuf = XMESA_BUFFER(ctx->DrawBuffer);
+
+ /* XXX check for relevant new_state flags */
+ xmesa_set_renderbuffer_funcs(back_xrb, xmesa->pixelformat,
+ xmesa->xm_visual->BitsPerPixel);
+
+ if (xmbuf->backxrb->pixmap) {
+ back_xrb->clearFunc = clear_pixmap;
+ }
+ else {
+ switch (xmesa->xm_visual->BitsPerPixel) {
+ case 8:
+ if (xmesa->xm_visual->hpcr_clear_flag) {
+ back_xrb->clearFunc = clear_HPCR_ximage;
+ }
+ else {
+ back_xrb->clearFunc = clear_8bit_ximage;
+ }
+ break;
+ case 16:
+ back_xrb->clearFunc = clear_16bit_ximage;
+ break;
+ case 24:
+ back_xrb->clearFunc = clear_24bit_ximage;
+ break;
+ case 32:
+ back_xrb->clearFunc = clear_32bit_ximage;
+ break;
+ default:
+ back_xrb->clearFunc = clear_nbit_ximage;
+ break;
}
- break;
- case 16:
- xmesa->xm_draw_buffer->back_clear_func = clear_16bit_ximage;
- break;
- case 24:
- xmesa->xm_draw_buffer->back_clear_func = clear_24bit_ximage;
- break;
- case 32:
- xmesa->xm_draw_buffer->back_clear_func = clear_32bit_ximage;
- break;
- default:
- xmesa->xm_draw_buffer->back_clear_func = clear_nbit_ximage;
- break;
}
}
- if (ctx->Color._DrawDestMask[0] & (DD_FRONT_LEFT_BIT | DD_BACK_LEFT_BIT)) {
+#if OLD_RENDERBUFFER && 0
+ if (ctx->DrawBuffer->_ColorDrawBufferMask[0] & (BUFFER_BIT_FRONT_LEFT | BUFFER_BIT_BACK_LEFT)) {
xmesa_update_span_funcs(ctx);
}
+#endif
+
+ if (xmesa->xm_visual->hpcr_clear_flag) {
+ /* this depends on whether we're drawing to the front or back buffer */
+ /* XXX FIX THIS! */
+#if 0
+ if (pixmap) {
+ ctx->Driver.ClearColor = clear_color_HPCR_pixmap;
+ }
+ else {
+ ctx->Driver.ClearColor = clear_color_HPCR_ximage;
+ }
+#else
+ (void) clear_color_HPCR_pixmap;
+ (void) clear_color_HPCR_ximage;
+#endif
+ }
}
@@ -1208,17 +1166,36 @@ choose_tex_format( GLcontext *ctx, GLint internalFormat,
/**
* Called by glViewport.
* This is a good time for us to poll the current X window size and adjust
- * our ancillary (back color, depth, stencil, etc) buffers to match the
- * current window size. Remember, we have no opportunity to respond to
- * conventional X Resize/StructureNotify events since the X driver has no
- * event loop. Thus, we poll.
+ * our renderbuffers to match the current window size.
+ * Remember, we have no opportunity to respond to conventional
+ * X Resize/StructureNotify events since the X driver has no event loop.
+ * Thus, we poll.
* Note that this trick isn't fool-proof. If the application never calls
* glViewport, our notion of the current window size may be incorrect.
*/
static void
xmesa_viewport(GLcontext *ctx, GLint x, GLint y, GLsizei w, GLsizei h)
{
+#if 1
+ struct gl_framebuffer *fb = ctx->WinSysDrawBuffer;
+ GLuint newWidth, newHeight;
+
+ /*
+ printf("%s before %d x %d\n", __FUNCTION__, fb->Width, fb->Height);
+ */
+
+ get_buffer_size(fb, &newWidth, &newHeight);
+ if (newWidth != fb->Width || newHeight != fb->Height) {
+ xmesa_resize_buffers(ctx, fb, newWidth, newHeight);
+ ctx->NewState |= _NEW_BUFFERS; /* to update scissor / window bounds */
+ }
+ /*
+ printf("%s after %d x %d\n", __FUNCTION__, fb->Width, fb->Height);
+ */
+#else
+ /* This also works: */
_mesa_ResizeBuffersMESA();
+#endif
}