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nvc0: enable FBFETCH with a special slot for color buffer 0

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We don't need to support all the color buffers for advanced blend, just
cb0. For Fermi, we use the special binding slots so that we don't
overlap with user textures, while Kepler+ gets a dedicated position for
the fb handle in the driver constbuf.

This logic is only triggered when a FBFETCH is actually present so it
should be a no-op most of the time.

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
This commit is contained in:
Ilia Mirkin
2017-01-02 00:48:51 -05:00
parent 6b7511c2f1
commit 5ba380c226
11 changed files with 174 additions and 7 deletions
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docs/relnotes/17.0.0.html
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@@ -45,6 +45,7 @@ Note: some of the new features are only available with certain drivers.
<ul>
<li>GL_ARB_post_depth_coverage on i965/gen9+</li>
<li>GL_KHR_blend_equation_advanced on nvc0</li>
<li>GL_INTEL_conservative_rasterization on i965/gen9+</li>
<li>GL_NV_image_formats on any driver supporting GL_ARB_shader_image_load_store (i965, nvc0, radeonsi, softpipe)</li>
<li>GL_ARB_gpu_shader_fp64 in i965/haswell</li>