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render targets if ARB_draw_buffers_blend is not supported
If EXT_draw_buffers2 is supported but ARB_draw_buffers_blend isn't
_mesa_BlendFuncSeparateEXT only sets up the blend equation and function for the
first render target. This patch makes sure that update_blend doesn't try to use
the data from other rendertargets in such cases.
Signed-off-by: Brian Paul <brianp@vmware.com>
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adapt to blit changes, and also handle a bit more msaa state in theory
(incomplete, doesn't handle resolves in any way for now).
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minor code changes, style and comment fixes
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uses the new gallium per-rt blend functionality
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GL 3.0 (EXT_draw_buffers2) and other APIs allow independent blend enables and
write masks per render target, ARB_draw_buffers_blend (and other APIs) also
allow independent blend functions. Things like dithering, logic ops however
are not extended to be per rendertarget, that might be conceptually possible
however it doesn't look like any API wants to expose this.
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This is part of the GL_EXT_draw_buffers2 extension and part of GL 3.0.
The ctx->Color.ColorMask field is now a 2-D array. Until drivers are
modified to support per-buffer color masking, they can just look at
the 0th color mask.
The new _mesa_ColorMaskIndexed() function will be called by
glColorMaskIndexedEXT() or glColorMaski().
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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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Use the code in cso_context.c rather than st_cache.c.
Basically, binding of state objects now goes through the CSO module.
But Vertex/fragment shaders go through pipe->bind_fs/vs_state() since they're
not cached by the CSO module at this time.
Also, update softpipe driver to handle NULL state objects in various places.
This happens during context destruction. May need to update other drivers...
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cso already allocated the template for us. Returning 0 means
we have no driver specific representation and just want
the template on the bind.
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Drivers can now create whatever they want from the state template. We
use cso_state object to store the template (necessary during lookups),
and the driver data. Convert blend state to the new semantics.
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Replacing mesa's main hash with one that handles collisions, moving state_tracker
related caching to the state tracker to keep cso cache independent of it. Cleanups.
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We want our state objects to be immutable, handled via the
create/bind/delete calls instead of struct propagation.
Only implementing the blend state to see how it would look like
and work.
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Some git wierdness going on.
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softpipe/state_tracker --> state_tracker/
softpipe/ --> pipe/
softpipe/generic --> pipe/softpipe/
I don't think pipe is a great name, but I disliked all the others too.
Luckily it's fairly easy to rename with git, so this can be revisited
later.
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