Back when we were flushing the entire batch at BindFramebuffer, the kernel
would notice the domain transition when someone went to texture from it and
flush for us. We no longer do the batch flushing every time, so we get to
do aggressive flushing until we move batchbuffer handling to libdrm.
Fixes piglit fbo-flushing. Bug #25377. No noticeable performance loss
on cairo-gl (so this is better than batch flushing).
The swrast pipeline shouldn't have any problem with all the frag and vert
textures being bound at the same time. Note that this may result in
DRI drivers that don't set this limit having an improbable return
(fragment + vertex < combined), but it seems like it shouldn't cause
problems for apps.
The MaxCombinedTextureImageUnits is the total number of samplers that can
be bound between vertex, geometry, and fragment, not 0. This should report
the correct value on 965 now. Other DRI drivers may also need updating if
their MaxVertexTextureImageUnits != 0 (for example, if using the sw vertex
pipeline).
It's not clear to me if there's going to be a valid value for this
limit other than MaxTextureImageUnits + MaxVertexTextureImageUnits (+
MaxGeometryTextureImageUnits eventually). If not, then we should probably
just move this into the core at Get time.
Bug #25518 (wine regression). Fixes piglit vp-combined-image-units.
The idea here is to eliminate the set_edgeflags() call in pipe_context
by treating edgeflags as a regular vertex element.
Edgeflags provoke special treatment in hardware, which means we need to
label them in some way, in this case we'll be passing them through the
vertex shader and labelling the vertex shader output with a new TGSI
semantic (TGSI_SEMANTIC_EDGEFLAG).
The util_format_layout name was unfortunate and there
are as been a lot of confusion due to this. Hopefully
this will shed some light on what it was meant for.
Bottom line is: do not rely on these values unless
you're automatically code generating pixel
packing/unpacking routines.
Suggestions for better names than util_format_layout
are welcome!
The assertion is that the correct read type to be using is the native
type of the underlying read renderbuffer. For some fallback paths, this
may be worse than GL_RGBA/GL_UNSIGNED_BYTE for reads today, but it gets
all drivers the expected GL_BGRA/GL_UNSIGNED_BYTE for ARGB8888 or
GL_BGR//GL_UNSIGNED_SHORT_5_6_5_REV for rgb565 with no work.
This fixes the intel (and other) DRI drivers to report read formats that
should hit blit PBO readpixels paths.
