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fix bogus fb/drawable information

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the framebuffer objects attached to drawables can have invalidate state
associated with them, since for the window framebuffer this is per-context
state and not per-fbo state. Since drivers rely on that information
(otherwise would need to check if currently the window-framebuffer is
bound in a lot of places) fix it up in _mesa_make_current (ugly).
(Brought over from i915tex_privbuffers, where it fixes xdemos/wincopy
when switching to front buffer rendering.)
This commit is contained in:
Roland Scheidegger 2007-07-16 18:21:36 +02:00
parent fb3b9060d4
commit cbfe29cdee
1 changed files with 11 additions and 0 deletions
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11
src/mesa/main/context.c
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@ -1495,9 +1495,20 @@ _mesa_make_current( GLcontext *newCtx, GLframebuffer *drawBuffer,
*/
if (!newCtx->DrawBuffer || newCtx->DrawBuffer->Name == 0) {
_mesa_reference_framebuffer(&newCtx->DrawBuffer, drawBuffer);
/* fix up the fb fields - these will end up wrong otherwise
if the DRIdrawable changes, and someone may rely on them.
*/
/* What a mess!?! */
int i;
GLenum buffers[MAX_DRAW_BUFFERS];
for(i = 0; i < newCtx->Const.MaxDrawBuffers; i++) {
buffers[i] = newCtx->Color.DrawBuffer[i];
}
_mesa_drawbuffers(newCtx, newCtx->Const.MaxDrawBuffers, buffers, NULL);
}
if (!newCtx->ReadBuffer || newCtx->ReadBuffer->Name == 0) {
_mesa_reference_framebuffer(&newCtx->ReadBuffer, readBuffer);
_mesa_ReadBuffer(newCtx->Pixel.ReadBuffer);
}
newCtx->NewState |= _NEW_BUFFERS;