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So far this is only tested when GL_BLEND is disabled.
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st_finalize_texture()'s return code now indicates success/fail instead of
presence of texture border (which we discard earlier).
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Also, glBitmap now re-uses the vertex buffer to avoid frequent allocations/
deallocations. And, use u_simple_shaders utility code.
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Quad clears should be a little more efficient now.
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The memcmp() fails to detect buffer size changes...
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This avoids the Mesa->TGSI translation step.
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These are convenience fields. Otherwise, we have to check cbuf[0] or zsbuf
in various places.
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This provides better information about which images in texture object have changed.
Also, call texture_update() from more places previously missed.
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elsewhere
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Need to find highest used sampler so search from end toward beginning.
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(blit, gen-mipmaps, quad-clear, etc)
Also, additional cso_set_*() functions for viewport, framebuffer, blend color,
etc. state.
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to slip over the allocated memory for the vb.
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If we go behind the CSO context's back and set pipe state directly we
need to invalidate the CSO's 'current' pointers.
This will be revisited...
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Copy rectangular region from one surface to another w/ scaling.
Disables most fragment operations.
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