Each array element is now a BUFFER_x token rather than a BUFFER_BIT_x bitmask.
The number of active color buffers is specified by _NumColorDrawBuffers.
This builds on the previous DrawBuffer changes and will help with drivers
implementing GL_ARB_draw_buffers.
static void i810XMesaWindowMoved( i810ContextPtr imesa )
{
/* Determine current color drawing buffer */
- switch (imesa->glCtx->DrawBuffer->_ColorDrawBufferMask[0]) {
- case BUFFER_BIT_FRONT_LEFT:
+ switch (imesa->glCtx->DrawBuffer->_ColorDrawBufferIndexes[0]) {
+ case BUFFER_FRONT_LEFT:
i810XMesaSetFrontClipRects( imesa );
break;
- case BUFFER_BIT_BACK_LEFT:
+ case BUFFER_BACK_LEFT:
i810XMesaSetBackClipRects( imesa );
break;
default:
int front = 0;
/* Determine current color drawing buffer */
- switch (ctx->DrawBuffer->_ColorDrawBufferMask[0]) {
- case BUFFER_BIT_FRONT_LEFT:
+ switch (ctx->DrawBuffer->_ColorDrawBufferIndexes[0]) {
+ case BUFFER_FRONT_LEFT:
front = 1;
break;
- case BUFFER_BIT_BACK_LEFT:
+ case BUFFER_BACK_LEFT:
front = 0;
break;
default:
i810ContextPtr imesa = I810_CONTEXT(ctx);
int front = 0;
- /*
- * _DrawDestMask is easier to cope with than <mode>.
- */
- switch ( ctx->DrawBuffer->_ColorDrawBufferMask[0]) {
- case BUFFER_BIT_FRONT_LEFT:
+ if (ctx->DrawBuffer->_NumColorDrawBuffers != 1) {
+ /* GL_NONE or GL_FRONT_AND_BACK or stereo left&right, etc */
+ FALLBACK( imesa, I810_FALLBACK_DRAW_BUFFER, GL_TRUE );
+ return;
+ }
+
+ switch ( ctx->DrawBuffer->_ColorDrawBufferIndexes[0]) {
+ case BUFFER_FRONT_LEFT:
front = 1;
break;
- case BUFFER_BIT_BACK_LEFT:
+ case BUFFER_BACK_LEFT:
front = 0;
break;
default:
- /* GL_NONE or GL_FRONT_AND_BACK or stereo left&right, etc */
FALLBACK( imesa, I810_FALLBACK_DRAW_BUFFER, GL_TRUE );
return;
}
if (intel_fb)
intel_rb =
intel_get_renderbuffer(&intel_fb->Base,
- intel_fb->Base._ColorDrawBufferMask[0] ==
- BUFFER_BIT_FRONT_LEFT ? BUFFER_FRONT_LEFT :
- BUFFER_BACK_LEFT);
+ intel_fb->Base._ColorDrawBufferIndexes[0]);
}
if (intel_rb && dPriv->vblFlags &&
struct intel_region *saved_draw_region;
struct intel_region *saved_depth_region;
- GLuint restore_draw_mask;
+ GLuint restore_draw_buffers[MAX_DRAW_BUFFERS];
+ GLuint restore_num_draw_buffers;
+
struct gl_fragment_program *restore_fp;
GLboolean active;
* FragmentProgram->_Current
* VertexProgram->_Enabled
* brw->vertex_program
- * DrawBuffer->_ColorDrawBufferMask[0]
+ * DrawBuffer->_ColorDrawBufferIndexes[0]
*
*
* More if drawpixels-through-texture is added.
{
GLcontext *ctx = &intel->ctx;
struct brw_context *brw = brw_context(ctx);
+ GLuint i;
if (!brw->metaops.vbo) {
init_metaops_state(brw);
meta_no_texture(&brw->intel);
meta_flat_shade(&brw->intel);
- brw->metaops.restore_draw_mask = ctx->DrawBuffer->_ColorDrawBufferMask[0];
+ for (i = 0; i < ctx->Const.MaxDrawBuffers; i++) {
+ brw->metaops.restore_draw_buffers[i]
+ = ctx->DrawBuffer->_ColorDrawBufferIndexes[i];
+ }
+ brw->metaops.restore_num_draw_buffers = ctx->DrawBuffer->_NumColorDrawBuffers;
+
brw->metaops.restore_fp = ctx->FragmentProgram.Current;
/* This works without adjusting refcounts. Fix later?
{
GLcontext *ctx = &intel->ctx;
struct brw_context *brw = brw_context(ctx);
+ GLuint i;
restore_attribs(brw);
- ctx->DrawBuffer->_ColorDrawBufferMask[0] = brw->metaops.restore_draw_mask;
+ for (i = 0; i < ctx->Const.MaxDrawBuffers; i++) {
+ ctx->DrawBuffer->_ColorDrawBufferIndexes[i]
+ = brw->metaops.restore_draw_buffers[i];
+ }
+ ctx->DrawBuffer->_NumColorDrawBuffers = brw->metaops.restore_num_draw_buffers;
+
ctx->FragmentProgram.Current = brw->metaops.restore_fp;
brw->state.draw_region = brw->metaops.saved_draw_region;
ASSERT(intel_fb);
ASSERT(intel_fb->Base.Name == 0); /* Not a user-created FBO */
- ASSERT(frontRegion);
- ASSERT(backRegion);
- ASSERT(frontRegion->pitch == backRegion->pitch);
- ASSERT(frontRegion->cpp == backRegion->cpp);
+ ASSERT(src);
+ ASSERT(dst);
+ ASSERT(src->pitch == dst->pitch);
+ ASSERT(src->cpp == dst->cpp);
if (cpp == 2) {
BR13 = (0xCC << 16) | (1 << 24);
/**
* Use blitting to clear the renderbuffers named by 'flags'.
- * Note: we can't use the ctx->DrawBuffer->_ColorDrawBufferMask field
+ * Note: we can't use the ctx->DrawBuffer->_ColorDrawBufferIndexes field
* since that might include software renderbuffers or renderbuffers
* which we're clearing with triangles.
* \param mask bitmask of BUFFER_BIT_* values indicating buffers to clear
}
else {
/* drawing to a window */
- switch (intel_fb->Base._ColorDrawBufferMask[0]) {
- case BUFFER_BIT_FRONT_LEFT:
+ switch (intel_fb->Base._ColorDrawBufferIndexes[0]) {
+ case BUFFER_FRONT_LEFT:
intelSetFrontClipRects(intel);
break;
- case BUFFER_BIT_BACK_LEFT:
+ case BUFFER_BACK_LEFT:
intelSetBackClipRects(intel);
break;
default:
- /* glDrawBuffer(GL_NONE or GL_FRONT_AND_BACK): software fallback */
intelSetFrontClipRects(intel);
}
}
(struct intel_framebuffer *) intel->ctx.DrawBuffer;
struct intel_renderbuffer *intel_rb =
intel_get_renderbuffer(&intel_fb->Base,
- intel_fb->Base._ColorDrawBufferMask[0] ==
- BUFFER_BIT_FRONT_LEFT ? BUFFER_FRONT_LEFT :
+ intel_fb->Base._ColorDrawBufferIndexes[0] ==
+ BUFFER_FRONT_LEFT ? BUFFER_FRONT_LEFT :
BUFFER_BACK_LEFT);
if (intel_fb->Base.Name == 0 && intel_rb &&
/* draw to exactly one color buffer */
/*_mesa_debug(ctx, "Hardware rendering\n");*/
FALLBACK(intel, INTEL_FALLBACK_DRAW_BUFFER, GL_FALSE);
- if (fb->_ColorDrawBufferMask[0] == BUFFER_BIT_FRONT_LEFT) {
+ if (fb->_ColorDrawBufferIndexes[0] == BUFFER_FRONT_LEFT) {
front = 1;
}
struct intel_renderbuffer *
intel_get_renderbuffer(struct gl_framebuffer *fb, GLuint attIndex)
{
- return intel_renderbuffer(fb->Attachment[attIndex].Renderbuffer);
+ if (attIndex >= 0)
+ return intel_renderbuffer(fb->Attachment[attIndex].Renderbuffer);
+ else
+ return NULL;
}
if ( mmesa->lastStamp != dPriv->lastStamp ) {
mmesa->lastStamp = dPriv->lastStamp;
- if (mmesa->glCtx->DrawBuffer->_ColorDrawBufferMask[0] == BUFFER_BIT_BACK_LEFT)
+ if (mmesa->glCtx->DrawBuffer->_ColorDrawBufferIndexes[0] == BUFFER_BACK_LEFT)
mach64SetCliprects( mmesa->glCtx, GL_BACK_LEFT );
else
mach64SetCliprects( mmesa->glCtx, GL_FRONT_LEFT );
FLUSH_BATCH( mmesa );
- /*
- * _DrawDestMask is easier to cope with than <mode>.
- */
- switch ( ctx->DrawBuffer->_ColorDrawBufferMask[0] ) {
- case BUFFER_BIT_FRONT_LEFT:
+ if (ctx->DrawBuffer->_NumColorDrawBuffers != 1) {
+ /* GL_NONE or GL_FRONT_AND_BACK or stereo left&right, etc */
+ FALLBACK( mmesa, MACH64_FALLBACK_DRAW_BUFFER, GL_TRUE );
+ return;
+ }
+
+ switch ( ctx->DrawBuffer->_ColorDrawBufferIndexes[0] ) {
+ case BUFFER_FRONT_LEFT:
FALLBACK( mmesa, MACH64_FALLBACK_DRAW_BUFFER, GL_FALSE );
mach64SetCliprects( ctx, GL_FRONT_LEFT );
if (MACH64_DEBUG & DEBUG_VERBOSE_MSG)
fprintf(stderr,"%s: BUFFER_BIT_FRONT_LEFT\n", __FUNCTION__);
break;
- case BUFFER_BIT_BACK_LEFT:
+ case BUFFER_BACK_LEFT:
FALLBACK( mmesa, MACH64_FALLBACK_DRAW_BUFFER, GL_FALSE );
mach64SetCliprects( ctx, GL_BACK_LEFT );
if (MACH64_DEBUG & DEBUG_VERBOSE_MSG)
fprintf(stderr,"%s: BUFFER_BIT_BACK_LEFT\n", __FUNCTION__);
break;
default:
- /* GL_NONE or GL_FRONT_AND_BACK or stereo left&right, etc */
FALLBACK( mmesa, MACH64_FALLBACK_DRAW_BUFFER, GL_TRUE );
if (MACH64_DEBUG & DEBUG_VERBOSE_MSG)
fprintf(stderr,"%s: fallback (mode=%d)\n", __FUNCTION__, mode);
FLUSH_BATCH( mmesa );
- /*
- * _DrawDestMask is easier to cope with than <mode>.
- */
- switch ( ctx->DrawBuffer->_ColorDrawBufferMask[0] ) {
- case BUFFER_BIT_FRONT_LEFT:
+ if (ctx->DrawBuffer->_NumColorDrawBuffers != 1) {
+ /* GL_NONE or GL_FRONT_AND_BACK or stereo left&right, etc */
+ FALLBACK( ctx, MGA_FALLBACK_DRAW_BUFFER, GL_TRUE );
+ return;
+ }
+
+ switch ( ctx->DrawBuffer->_ColorDrawBufferIndexes[0] ) {
+ case BUFFER_FRONT_LEFT:
mmesa->setup.dstorg = mmesa->mgaScreen->frontOffset;
mmesa->draw_buffer = MGA_FRONT;
break;
- case BUFFER_BIT_BACK_LEFT:
+ case BUFFER_BACK_LEFT:
mmesa->setup.dstorg = mmesa->mgaScreen->backOffset;
mmesa->draw_buffer = MGA_BACK;
break;
default:
- /* GL_NONE or GL_FRONT_AND_BACK or stereo left&right, etc */
FALLBACK( ctx, MGA_FALLBACK_DRAW_BUFFER, GL_TRUE );
return;
}
int nbox, i;
fb = (struct gl_framebuffer *)dPriv->driverPrivate;
- if (fb->_ColorDrawBufferMask[0] == BUFFER_BIT_FRONT_LEFT) {
+ if (fb->_ColorDrawBufferIndexes[0] == BUFFER_FRONT_LEFT) {
src = (nouveau_renderbuffer_t *)
fb->Attachment[BUFFER_FRONT_LEFT].Renderbuffer;
} else {
{
nouveauContextPtr nmesa = NOUVEAU_CONTEXT(ctx);
- if (ctx->DrawBuffer->_ColorDrawBufferMask[0] == BUFFER_BIT_FRONT_LEFT)
+ if (ctx->DrawBuffer->_ColorDrawBufferIndexes[0] == BUFFER_FRONT_LEFT)
nouveauDoSwapBuffers(nmesa, nmesa->driDrawable);
FIRE_RING();
}
FLUSH_BATCH( rmesa );
- /*
- * _ColorDrawBufferMask is easier to cope with than <mode>.
- */
- switch ( ctx->DrawBuffer->_ColorDrawBufferMask[0] ) {
- case BUFFER_BIT_FRONT_LEFT:
- case BUFFER_BIT_BACK_LEFT:
- FALLBACK( rmesa, R128_FALLBACK_DRAW_BUFFER, GL_FALSE );
- break;
- default:
+ if (ctx->DrawBuffer->_NumColorDrawBuffers != 1) {
/* GL_NONE or GL_FRONT_AND_BACK or stereo left&right, etc */
FALLBACK( rmesa, R128_FALLBACK_DRAW_BUFFER, GL_TRUE );
- break;
+ return;
+ }
+ else {
+ switch ( ctx->DrawBuffer->_ColorDrawBufferIndexes[0] ) {
+ case BUFFER_FRONT_LEFT:
+ case BUFFER_BACK_LEFT:
+ FALLBACK( rmesa, R128_FALLBACK_DRAW_BUFFER, GL_FALSE );
+ break;
+ default:
+ /* GL_NONE or GL_FRONT_AND_BACK or stereo left&right, etc */
+ FALLBACK( rmesa, R128_FALLBACK_DRAW_BUFFER, GL_TRUE );
+ break;
+ }
}
rmesa->new_state |= R128_NEW_WINDOW;
GLframebuffer *const draw_fb = (GLframebuffer*) drawable->driverPrivate;
GLframebuffer *const read_fb = (GLframebuffer*) readable->driverPrivate;
- if (draw_fb->_ColorDrawBufferMask[0]
- == BUFFER_BIT_BACK_LEFT) {
+ if (draw_fb->_ColorDrawBufferIndexes[0] == BUFFER_BIT_BACK_LEFT) {
/* Can't ignore 2d windows if we are page flipping.
*/
if ( drawable->numBackClipRects == 0 || rmesa->doPageFlip ) {
R200_FIREVERTICES(rmesa); /* don't pipeline cliprect changes */
- /*
- * _ColorDrawBufferMask is easier to cope with than <mode>.
- * Check for software fallback, update cliprects.
- */
- switch ( ctx->DrawBuffer->_ColorDrawBufferMask[0] ) {
- case BUFFER_BIT_FRONT_LEFT:
- case BUFFER_BIT_BACK_LEFT:
+ if (ctx->DrawBuffer->_NumColorDrawBuffers != 1) {
+ /* 0 (GL_NONE) buffers or multiple color drawing buffers */
+ FALLBACK( rmesa, R200_FALLBACK_DRAW_BUFFER, GL_TRUE );
+ return;
+ }
+
+ switch ( ctx->DrawBuffer->_ColorDrawBufferIndexes[0] ) {
+ case BUFFER_FRONT_LEFT:
+ case BUFFER_BACK_LEFT:
FALLBACK( rmesa, R200_FALLBACK_DRAW_BUFFER, GL_FALSE );
break;
default:
- /* 0 (GL_NONE) buffers or multiple color drawing buffers */
FALLBACK( rmesa, R200_FALLBACK_DRAW_BUFFER, GL_TRUE );
return;
}
struct gl_framebuffer *fb = ctx->DrawBuffer;
driRenderbuffer *drb;
- if (fb->_ColorDrawBufferMask[0] == BUFFER_BIT_FRONT_LEFT) {
+ if (fb->_ColorDrawBufferIndexes[0] == BUFFER_FRONT_LEFT) {
/* draw to front */
drb = (driRenderbuffer *) fb->Attachment[BUFFER_FRONT_LEFT].Renderbuffer;
}
- else if (fb->_ColorDrawBufferMask[0] == BUFFER_BIT_BACK_LEFT) {
+ else if (fb->_ColorDrawBufferIndexes[0] == BUFFER_BACK_LEFT) {
/* draw to back */
drb = (driRenderbuffer *) fb->Attachment[BUFFER_BACK_LEFT].Renderbuffer;
}
struct gl_framebuffer *fb = ctx->DrawBuffer;
driRenderbuffer *drb;
- if (fb->_ColorDrawBufferMask[0] == BUFFER_BIT_FRONT_LEFT) {
+ if (fb->_ColorDrawBufferIndexes[0] == BUFFER_FRONT_LEFT) {
/* draw to front */
drb =
(driRenderbuffer *) fb->Attachment[BUFFER_FRONT_LEFT].
Renderbuffer;
- } else if (fb->_ColorDrawBufferMask[0] == BUFFER_BIT_BACK_LEFT) {
+ } else if (fb->_ColorDrawBufferIndexes[0] == BUFFER_BACK_LEFT) {
/* draw to back */
drb =
(driRenderbuffer *) fb->Attachment[BUFFER_BACK_LEFT].
}
use_back = rmesa->glCtx->DrawBuffer ?
- (rmesa->glCtx->DrawBuffer->_ColorDrawBufferMask[0] ==
- BUFFER_BIT_BACK_LEFT) : 1;
+ (rmesa->glCtx->DrawBuffer->_ColorDrawBufferIndexes[0] ==
+ BUFFER_BACK_LEFT) : 1;
use_back ^= (rmesa->sarea->pfCurrentPage == 1);
if (use_back) {
GLframebuffer *const draw_fb = (GLframebuffer*)drawable->driverPrivate;
GLframebuffer *const read_fb = (GLframebuffer*)readable->driverPrivate;
- if (draw_fb->_ColorDrawBufferMask[0] == BUFFER_BIT_BACK_LEFT) {
+ if (draw_fb->_ColorDrawBufferIndexes[0] == BUFFER_BACK_LEFT) {
/* Can't ignore 2d windows if we are page flipping. */
if (drawable->numBackClipRects == 0 || radeon->doPageFlip ||
radeon->sarea->pfCurrentPage == 1) {
GLframebuffer *const draw_fb = (GLframebuffer*) drawable->driverPrivate;
GLframebuffer *const read_fb = (GLframebuffer*) readable->driverPrivate;
- if (draw_fb->_ColorDrawBufferMask[0]
- == BUFFER_BIT_BACK_LEFT) {
+ if (draw_fb->_ColorDrawBufferIndexes[0] == BUFFER_BACK_LEFT) {
/* Can't ignore 2d windows if we are page flipping.
*/
if ( drawable->numBackClipRects == 0 || rmesa->doPageFlip ) {
RADEON_FIREVERTICES(rmesa); /* don't pipeline cliprect changes */
- /*
- * _ColorDrawBufferMask is easier to cope with than <mode>.
- * Check for software fallback, update cliprects.
- */
- switch ( ctx->DrawBuffer->_ColorDrawBufferMask[0] ) {
- case BUFFER_BIT_FRONT_LEFT:
- case BUFFER_BIT_BACK_LEFT:
+ if (ctx->DrawBuffer->_NumColorDrawBuffers != 1) {
+ /* 0 (GL_NONE) buffers or multiple color drawing buffers */
+ FALLBACK( rmesa, RADEON_FALLBACK_DRAW_BUFFER, GL_TRUE );
+ return;
+ }
+
+ switch ( ctx->DrawBuffer->_ColorDrawBufferIndexes[0] ) {
+ case BUFFER_FRONT_LEFT:
+ case BUFFER_BACK_LEFT:
FALLBACK( rmesa, RADEON_FALLBACK_DRAW_BUFFER, GL_FALSE );
break;
default:
- /* 0 (GL_NONE) buffers or multiple color drawing buffers */
FALLBACK( rmesa, RADEON_FALLBACK_DRAW_BUFFER, GL_TRUE );
return;
}
struct gl_framebuffer *fb = ctx->DrawBuffer;
driRenderbuffer *drb;
- if (fb->_ColorDrawBufferMask[0] == BUFFER_BIT_FRONT_LEFT) {
+ if (fb->_ColorDrawBufferIndexes[0] == BUFFER_FRONT_LEFT) {
/* draw to front */
drb = (driRenderbuffer *) fb->Attachment[BUFFER_FRONT_LEFT].Renderbuffer;
}
- else if (fb->_ColorDrawBufferMask[0] == BUFFER_BIT_BACK_LEFT) {
+ else if (fb->_ColorDrawBufferIndexes[0] == BUFFER_BACK_LEFT) {
/* draw to back */
drb = (driRenderbuffer *) fb->Attachment[BUFFER_BACK_LEFT].Renderbuffer;
}
__DRIdrawablePrivate *dPriv = imesa->driDrawable;
if ((dPriv->numBackClipRects == 0)
- || (imesa->glCtx->DrawBuffer->_ColorDrawBufferMask[0] == BUFFER_BIT_FRONT_LEFT)) {
+ || (imesa->glCtx->DrawBuffer->_ColorDrawBufferIndexes[0] == BUFFER_FRONT_LEFT)) {
imesa->numClipRects = dPriv->numClipRects;
imesa->pClipRects = dPriv->pClipRects;
imesa->drawX = dPriv->x;
savageContextPtr imesa = SAVAGE_CONTEXT(ctx);
u_int32_t destCtrl = imesa->regs.s4.destCtrl.ui;
- /*
- * _DrawDestMask is easier to cope with than <mode>.
- */
- switch ( ctx->DrawBuffer->_ColorDrawBufferMask[0] ) {
- case BUFFER_BIT_FRONT_LEFT:
+ if (ctx->DrawBuffer->_NumColorDrawBuffers != 1) {
+ FALLBACK( ctx, SAVAGE_FALLBACK_DRAW_BUFFER, GL_TRUE );
+ return;
+ }
+
+ switch ( ctx->DrawBuffer->_ColorDrawBufferIndexes[0] ) {
+ case BUFFER_FRONT_LEFT:
imesa->IsDouble = GL_FALSE;
imesa->regs.s4.destCtrl.ni.offset = imesa->savageScreen->frontOffset>>11;
break;
- case BUFFER_BIT_BACK_LEFT:
+ case BUFFER_BACK_LEFT:
imesa->IsDouble = GL_TRUE;
imesa->regs.s4.destCtrl.ni.offset = imesa->savageScreen->backOffset>>11;
break;
__GLSiSHardware *current = &smesa->current;
if(getenv("SIS_DRAW_FRONT"))
- ctx->DrawBuffer->_ColorDrawBufferMask[0] = GL_FRONT_LEFT;
+ ctx->DrawBuffer->_ColorDrawBufferIndexes[0] = BUFFER_FRONT_LEFT;
+
+ if (ctx->DrawBuffer->_NumColorDrawBuffers > 1) {
+ FALLBACK( smesa, SIS_FALLBACK_DRAW_BUFFER, GL_TRUE );
+ return;
+ }
- /*
- * _DrawDestMask is easier to cope with than <mode>.
- */
current->hwDstSet &= ~MASK_DstBufferPitch;
- switch ( ctx->DrawBuffer->_ColorDrawBufferMask[0] ) {
- case BUFFER_BIT_FRONT_LEFT:
+
+ switch ( ctx->DrawBuffer->_ColorDrawBufferIndexes[0] ) {
+ case BUFFER_FRONT_LEFT:
current->hwOffsetDest = smesa->front.offset;
current->hwDstSet |= smesa->front.pitch;
FALLBACK( smesa, SIS_FALLBACK_DRAW_BUFFER, GL_FALSE );
break;
- case BUFFER_BIT_BACK_LEFT:
+ case BUFFER_BACK_LEFT:
current->hwOffsetDest = smesa->back.offset;
current->hwDstSet |= smesa->back.pitch;
FALLBACK( smesa, SIS_FALLBACK_DRAW_BUFFER, GL_FALSE );
break;
default:
- /* GL_NONE or GL_FRONT_AND_BACK or stereo left&right, etc */
FALLBACK( smesa, SIS_FALLBACK_DRAW_BUFFER, GL_TRUE );
return;
}
__GLSiSHardware *prev = &smesa->prev;
__GLSiSHardware *current = &smesa->current;
- /*
- * _DrawDestMask is easier to cope with than <mode>.
- */
+ if (ctx->DrawBuffer->_NumColorDrawBuffers != 1) {
+ FALLBACK( smesa, SIS_FALLBACK_DRAW_BUFFER, GL_TRUE );
+ return;
+ }
+
current->hwDstSet &= ~MASK_DstBufferPitch;
- switch ( ctx->DrawBuffer->_ColorDrawBufferMask[0] ) {
- case BUFFER_BIT_FRONT_LEFT:
+ switch ( ctx->DrawBuffer->_ColorDrawBufferIndexes[0] ) {
+ case BUFFER_FRONT_LEFT:
FALLBACK( smesa, SIS_FALLBACK_DRAW_BUFFER, GL_FALSE );
current->hwOffsetDest = smesa->front.offset >> 1;
current->hwDstSet |= smesa->front.pitch >> 2;
break;
- case BUFFER_BIT_BACK_LEFT:
+ case BUFFER_BACK_LEFT:
FALLBACK( smesa, SIS_FALLBACK_DRAW_BUFFER, GL_FALSE );
current->hwOffsetDest = smesa->back.offset >> 1;
current->hwDstSet |= smesa->back.pitch >> 2;
break;
default:
- /* GL_NONE or GL_FRONT_AND_BACK or stereo left&right, etc */
FALLBACK( smesa, SIS_FALLBACK_DRAW_BUFFER, GL_TRUE );
return;
}
RENDERINPUTS_COPY( index_bitset, tnl->render_inputs_bitset );
- if (ctx->DrawBuffer->_ColorDrawBufferMask[0] == BUFFER_BIT_FRONT_LEFT &&
+ if (ctx->DrawBuffer->_ColorDrawBufferIndexes[0] == BUFFER_FRONT_LEFT &&
smesa->driDrawable->numClipRects != 0)
{
multipass_cliprect(ctx, 0);
fxMesa->Color.ClearAlpha,
fxMesa->Depth.Clear);
FX_grColorMaskv_NoLock(ctx, true4);
- if (ctx->DrawBuffer->_ColorDrawBufferMask[0] & BUFFER_BIT_FRONT_LEFT)
+ if (ctx->DrawBuffer->_ColorDrawBufferIndexes[0] == BUFFER_FRONT_LEFT)
fxMesa->Glide.grRenderBuffer(GR_BUFFER_FRONTBUFFER);
if (!ctx->Depth.Test || !ctx->Depth.Mask)
fxMesa->Glide.grDepthMask(FXFALSE);
fxMesa->Glide.grDepthMask(FXTRUE);
}
FX_grColorMaskv_NoLock(ctx, true4);
- if (ctx->DrawBuffer->_ColorDrawBufferMask[0] & BUFFER_BIT_FRONT_LEFT)
+ if (ctx->DrawBuffer->_ColorDrawBufferIndexes[0] == BUFFER_FRONT_LEFT)
fxMesa->Glide.grRenderBuffer(GR_BUFFER_FRONTBUFFER);
}
}
FLUSH_BATCH( fxMesa );
- /*
- * _ColorDrawBufferMask is easier to cope with than <mode>.
- */
- switch ( ctx->DrawBuffer->_ColorDrawBufferMask[0] ) {
- case BUFFER_BIT_FRONT_LEFT:
+ if (ctx->DrawBuffer->_NumColorDrawBuffers > 1) {
+ FALLBACK( fxMesa, TDFX_FALLBACK_DRAW_BUFFER, GL_TRUE );
+ return;
+ }
+
+ switch ( ctx->DrawBuffer->_ColorDrawBufferIndexes[0] ) {
+ case BUFFER_FRONT_LEFT:
fxMesa->DrawBuffer = fxMesa->ReadBuffer = GR_BUFFER_FRONTBUFFER;
fxMesa->new_state |= TDFX_NEW_RENDER;
FALLBACK( fxMesa, TDFX_FALLBACK_DRAW_BUFFER, GL_FALSE );
break;
- case BUFFER_BIT_BACK_LEFT:
+ case BUFFER_BACK_LEFT:
fxMesa->DrawBuffer = fxMesa->ReadBuffer = GR_BUFFER_BACKBUFFER;
fxMesa->new_state |= TDFX_NEW_RENDER;
FALLBACK( fxMesa, TDFX_FALLBACK_DRAW_BUFFER, GL_FALSE );
break;
- case 0:
+ case -1:
FX_grColorMaskv( ctx, false4 );
FALLBACK( fxMesa, TDFX_FALLBACK_DRAW_BUFFER, GL_FALSE );
break;
draw_buffer = (struct via_renderbuffer *) drawable->driverPrivate;
read_buffer = (struct via_renderbuffer *) readable->driverPrivate;
- switch (vmesa->glCtx->DrawBuffer->_ColorDrawBufferMask[0]) {
- case BUFFER_BIT_BACK_LEFT:
+ switch (vmesa->glCtx->DrawBuffer->_ColorDrawBufferIndexes[0]) {
+ case BUFFER_BACK_LEFT:
if (drawable->numBackClipRects == 0) {
vmesa->numClipRects = drawable->numClipRects;
vmesa->pClipRects = drawable->pClipRects;
vmesa->pClipRects = drawable->pBackClipRects;
}
break;
- case BUFFER_BIT_FRONT_LEFT:
+ case BUFFER_FRONT_LEFT:
vmesa->numClipRects = drawable->numClipRects;
vmesa->pClipRects = drawable->pClipRects;
break;
if (!ctx->DrawBuffer)
return;
- switch ( ctx->DrawBuffer->_ColorDrawBufferMask[0] ) {
- case BUFFER_BIT_FRONT_LEFT:
+ if (ctx->DrawBuffer->_NumColorDrawBuffers != 1) {
+ FALLBACK(vmesa, VIA_FALLBACK_DRAW_BUFFER, GL_TRUE);
+ return;
+ }
+
+ switch ( ctx->DrawBuffer->_ColorDrawBufferIndexes[0] ) {
+ case BUFFER_FRONT_LEFT:
VIA_FLUSH_DMA(vmesa);
vmesa->drawBuffer = &vmesa->front;
FALLBACK(vmesa, VIA_FALLBACK_DRAW_BUFFER, GL_FALSE);
break;
- case BUFFER_BIT_BACK_LEFT:
+ case BUFFER_BACK_LEFT:
VIA_FLUSH_DMA(vmesa);
vmesa->drawBuffer = &vmesa->back;
FALLBACK(vmesa, VIA_FALLBACK_DRAW_BUFFER, GL_FALSE);
return FX_FALLBACK_STENCIL;
}
- if (ctx->DrawBuffer->_ColorDrawBufferMask[0] != BUFFER_BIT_FRONT_LEFT &&
- ctx->DrawBuffer->_ColorDrawBufferMask[0] != BUFFER_BIT_BACK_LEFT) {
+ if ((ctx->DrawBuffer->_ColorDrawBufferIndexes[0] != BUFFER_BIT_FRONT_LEFT) &&
+ (ctx->DrawBuffer->_ColorDrawBufferIndexes[0] != BUFFER_BIT_BACK_LEFT)) {
return FX_FALLBACK_DRAW_BUFFER;
}
const int depth = GET_VISUAL_DEPTH(xmesa->xm_visual);
const struct xmesa_renderbuffer *xrb;
- if ((ctx->DrawBuffer->_ColorDrawBufferMask[0]
- & (BUFFER_BIT_FRONT_LEFT | BUFFER_BIT_BACK_LEFT)) == 0)
+ if ((ctx->DrawBuffer->_ColorDrawBufferIndexes[0] != BUFFER_BIT_FRONT_LEFT) &&
+ (ctx->DrawBuffer->_ColorDrawBufferIndexes[0] != BUFFER_BIT_BACK_LEFT))
return (swrast_line_func) NULL;
if (ctx->RenderMode != GL_RENDER) return (swrast_line_func) NULL;
if (ctx->Line.SmoothFlag) return (swrast_line_func) NULL;
#ifndef XFree86Server
if (ctx->DrawBuffer->_NumColorDrawBuffers == 1
- && ctx->DrawBuffer->_ColorDrawBufferMask[0] == BUFFER_BIT_FRONT_LEFT
+ && ctx->DrawBuffer->_ColorDrawBufferIndexes[0] == BUFFER_FRONT_LEFT
&& swrast->_RasterMask == LOGIC_OP_BIT
&& ctx->Color.LogicOp == GL_XOR
&& !ctx->Line.StippleFlag
#endif
/* trivial fallback tests */
- if ((ctx->DrawBuffer->_ColorDrawBufferMask[0]
- & (BUFFER_BIT_FRONT_LEFT | BUFFER_BIT_BACK_LEFT)) == 0)
+ if ((ctx->DrawBuffer->_ColorDrawBufferIndexes[0] != BUFFER_BIT_FRONT_LEFT) &&
+ (ctx->DrawBuffer->_ColorDrawBufferIndexes[0] != BUFFER_BIT_BACK_LEFT))
return (swrast_tri_func) NULL;
if (ctx->RenderMode != GL_RENDER)
return (swrast_tri_func) NULL;
*/
bufferMask = 0;
if (mask & GL_COLOR_BUFFER_BIT) {
- bufferMask |= ctx->DrawBuffer->_ColorDrawBufferMask[0];
+ GLuint i;
+ for (i = 0; i < ctx->DrawBuffer->_NumColorDrawBuffers; i++) {
+ bufferMask |= (1 << ctx->DrawBuffer->_ColorDrawBufferIndexes[i]);
+ }
}
if ((mask & GL_DEPTH_BUFFER_BIT)
}
-/**
- * Set color output state. Traditionally, there was only one color
- * output, but fragment programs can now have several distinct color
- * outputs (see GL_ARB_draw_buffers). This function sets the state
- * for one such color output.
- * \param ctx current context
- * \param output which fragment program output
- * \param buffer buffer to write to (like GL_LEFT)
- * \param destMask BUFFER_* bitmask
- * (like BUFFER_BIT_FRONT_LEFT | BUFFER_BIT_BACK_LEFT).
- */
-static void
-set_color_output(GLcontext *ctx, GLuint output, GLenum buffer,
- GLbitfield destMask)
-{
- struct gl_framebuffer *fb = ctx->DrawBuffer;
-
- ASSERT(output < ctx->Const.MaxDrawBuffers);
-
- /* Set per-FBO state */
- fb->ColorDrawBuffer[output] = buffer;
- fb->_ColorDrawBufferMask[output] = destMask;
-
- /* this will be computed later, but zero to be safe */
- fb->_NumColorDrawBuffers = 0;
-
- if (fb->Name == 0) {
- /* Only set the per-context DrawBuffer state if we're currently
- * drawing to a window system framebuffer.
- */
- ctx->Color.DrawBuffer[output] = buffer;
- }
-}
-
-
/**
* Helper function to set the GL_DRAW_BUFFER state in the context and
* current FBO.
* \param ctx current context
* \param n number of color outputs to set
* \param buffers array[n] of colorbuffer names, like GL_LEFT.
- * \param destMask array[n] of BUFFER_* bitmasks which correspond to the
+ * \param destMask array[n] of BUFFER_BIT_* bitmasks which correspond to the
* colorbuffer names. (i.e. GL_FRONT_AND_BACK =>
* BUFFER_BIT_FRONT_LEFT | BUFFER_BIT_BACK_LEFT).
*/
_mesa_drawbuffers(GLcontext *ctx, GLuint n, const GLenum *buffers,
const GLbitfield *destMask)
{
+ struct gl_framebuffer *fb = ctx->DrawBuffer;
GLbitfield mask[MAX_DRAW_BUFFERS];
- GLuint output;
if (!destMask) {
/* compute destMask values now */
- const GLbitfield supportedMask
- = supported_buffer_bitmask(ctx, ctx->DrawBuffer);
+ const GLbitfield supportedMask = supported_buffer_bitmask(ctx, fb);
+ GLuint output;
for (output = 0; output < n; output++) {
mask[output] = draw_buffer_enum_to_bitmask(buffers[output]);
ASSERT(mask[output] != BAD_MASK);
destMask = mask;
}
- for (output = 0; output < n; output++) {
- set_color_output(ctx, output, buffers[output], destMask[output]);
+ if (n == 1) {
+ GLuint buf, count = 0;
+ /* init to -1 to help catch errors */
+ fb->_ColorDrawBufferIndexes[0] = -1;
+ for (buf = 0; buf < BUFFER_COUNT; buf++) {
+ if (destMask[0] & (1 << buf)) {
+ fb->_ColorDrawBufferIndexes[count] = buf;
+ count++;
+ }
+ }
+ fb->ColorDrawBuffer[0] = buffers[0];
+ fb->_NumColorDrawBuffers = count;
+ }
+ else {
+ GLuint buf, count = 0;
+ for (buf = 0; buf < n; buf++ ) {
+ if (destMask[buf]) {
+ fb->_ColorDrawBufferIndexes[buf] = _mesa_ffs(destMask[buf]) - 1;
+ count = buf + 1;
+ }
+ else {
+ fb->_ColorDrawBufferIndexes[buf] = -1;
+ }
+ }
+ /* set remaining outputs to -1 (GL_NONE) */
+ while (buf < ctx->Const.MaxDrawBuffers) {
+ fb->_ColorDrawBufferIndexes[buf] = -1;
+ buf++;
+ }
+ fb->_NumColorDrawBuffers = count;
}
- /* set remaining color outputs to NONE */
- for (output = n; output < ctx->Const.MaxDrawBuffers; output++) {
- set_color_output(ctx, output, GL_NONE, 0x0);
+ if (fb->Name == 0) {
+ /* also set context drawbuffer state */
+ GLuint buf;
+ for (buf = 0; buf < ctx->Const.MaxDrawBuffers; buf++) {
+ ctx->Color.DrawBuffer[buf] = fb->ColorDrawBuffer[buf];
+ }
}
ctx->NewState |= _NEW_COLOR;
if (fb) {
fb->Name = name;
fb->RefCount = 1;
+ fb->_NumColorDrawBuffers = 1;
fb->ColorDrawBuffer[0] = GL_COLOR_ATTACHMENT0_EXT;
- fb->_ColorDrawBufferMask[0] = BUFFER_BIT_COLOR0;
+ fb->_ColorDrawBufferIndexes[0] = BUFFER_COLOR0;
fb->ColorReadBuffer = GL_COLOR_ATTACHMENT0_EXT;
fb->_ColorReadBufferIndex = BUFFER_COLOR0;
fb->Delete = _mesa_destroy_framebuffer;
/* Init read/draw renderbuffer state */
if (visual->doubleBufferMode) {
+ fb->_NumColorDrawBuffers = 1;
fb->ColorDrawBuffer[0] = GL_BACK;
- fb->_ColorDrawBufferMask[0] = BUFFER_BIT_BACK_LEFT;
+ fb->_ColorDrawBufferIndexes[0] = BUFFER_BACK_LEFT;
fb->ColorReadBuffer = GL_BACK;
fb->_ColorReadBufferIndex = BUFFER_BACK_LEFT;
}
else {
+ fb->_NumColorDrawBuffers = 1;
fb->ColorDrawBuffer[0] = GL_FRONT;
- fb->_ColorDrawBufferMask[0] = BUFFER_BIT_FRONT_LEFT;
+ fb->_ColorDrawBufferIndexes[0] = BUFFER_FRONT_LEFT;
fb->ColorReadBuffer = GL_FRONT;
fb->_ColorReadBufferIndex = BUFFER_FRONT_LEFT;
}
static void
update_color_draw_buffers(GLcontext *ctx, struct gl_framebuffer *fb)
{
- GLuint output, count = 0;
+ GLuint output;
- /* First, interpret _ColorDrawBufferMask[] in the manner that would be
- * used if the fragment program/shader writes to gl_FragData[]
- */
- for (output = 0; output < ctx->Const.MaxDrawBuffers; output++) {
- GLuint buf = _mesa_ffs(fb->_ColorDrawBufferMask[output]);
- if (buf) {
- struct gl_renderbuffer *rb = fb->Attachment[buf - 1].Renderbuffer;
- fb->_ColorDrawBuffers[output] = rb; /* may be NULL */
- if (rb)
- count = output + 1;
+ for (output = 0; output < fb->_NumColorDrawBuffers; output++) {
+ GLint buf = fb->_ColorDrawBufferIndexes[output];
+ if (buf >= 0) {
+ fb->_ColorDrawBuffers[output] = fb->Attachment[buf].Renderbuffer;
}
- }
-
- /* Second, handle the GL_FRONT_AND_BACK case, overwriting the above
- * if needed.
- */
- GLbitfield bufferMask = fb->_ColorDrawBufferMask[0];
- if (_mesa_bitcount(bufferMask) > 1) {
- GLuint i;
- count = 0;
- for (i = 0; bufferMask && i < BUFFER_COUNT; i++) {
- if (bufferMask & (1 << i)) {
- struct gl_renderbuffer *rb = fb->Attachment[i].Renderbuffer;
- fb->_ColorDrawBuffers[count] = rb;
- count++;
- }
- bufferMask &= ~(1 << i);
+ else {
+ fb->_ColorDrawBuffers[output] = NULL;
}
}
-
- fb->_NumColorDrawBuffers = count;
}
GLenum ColorDrawBuffer[MAX_DRAW_BUFFERS];
GLenum ColorReadBuffer;
- /* These are computed from ColorDrawBuffer and ColorReadBuffer */
- GLbitfield _ColorDrawBufferMask[MAX_DRAW_BUFFERS]; /* Mask of BUFFER_BIT_* flags */
- GLint _ColorReadBufferIndex; /* -1 = None */
-
- /* These are computed from _ColorDrawBufferMask and _ColorReadBufferIndex */
+ /** Computed from ColorDraw/ReadBuffer above */
GLuint _NumColorDrawBuffers;
+ GLint _ColorDrawBufferIndexes[MAX_DRAW_BUFFERS]; /**< BUFFER_x or -1 */
+ GLint _ColorReadBufferIndex; /* -1 = None */
struct gl_renderbuffer *_ColorDrawBuffers[MAX_DRAW_BUFFERS];
struct gl_renderbuffer *_ColorReadBuffer;
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