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i965/fs: Guess nr_color_regions better in precompile

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Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
This commit is contained in:
Chris Forbes 2014-01-26 11:03:33 +13:00
parent 6c9de691c7
commit 046f8d8a6f
1 changed files with 3 additions and 1 deletions
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4
src/mesa/drivers/dri/i965/brw_fs.cpp
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@ -3590,7 +3590,9 @@ brw_fs_precompile(struct gl_context *ctx, struct gl_shader_program *prog)
key.render_to_fbo = _mesa_is_user_fbo(ctx->DrawBuffer);
}
key.nr_color_regions = 1;
key.nr_color_regions = _mesa_bitcount_64(fp->Base.OutputsWritten &
~(BITFIELD64_BIT(FRAG_RESULT_DEPTH) |
BITFIELD64_BIT(FRAG_RESULT_SAMPLE_MASK)));
/* GL_FRAGMENT_SHADER_DERIVATIVE_HINT is almost always GL_DONT_CARE. The
* quality of the derivatives is likely to be determined by the driconf