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i965: Copy shader->shadow_samplers to prog->ShadowSamplers.

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ir_to_mesa does this - apparently we just forgot or something.

Without this, we'll guess the wrong texture swizzle (XYZW for color
instead of XXX1 for depth) when doing precompiles.

This cuts 26 shader recompiles in a time demo of "Counter Strike:
Global Offensive" (58 -> 32) on Sandybridge.  Haswell still has 0
recompiles.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=87886
Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Matt Turner <mattst88@gmail.com>
Reviewed-by: Chris Forbes <chrisf@ijw.co.nz>
This commit is contained in:
Kenneth Graunke 2014-12-31 17:38:05 -08:00
parent 0b98b2bf53
commit 1f1102c834
1 changed files with 1 additions and 0 deletions
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src/mesa/drivers/dri/i965/brw_shader.cpp
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@ -242,6 +242,7 @@ brw_link_shader(struct gl_context *ctx, struct gl_shader_program *shProg)
do_set_program_inouts(shader->base.ir, prog, shader->base.Stage);
prog->SamplersUsed = shader->base.active_samplers;
prog->ShadowSamplers = shader->base.shadow_samplers;
_mesa_update_shader_textures_used(shProg, prog);
_mesa_reference_program(ctx, &shader->base.Program, prog);