Module: Mesa
Branch: master
Commit: f60374aa689539c8dbdb851488be515e5e7df7cb
URL:
http://cgit.freedesktop.org/mesa/mesa/commit/?id=f60374aa689539c8dbdb851488be515e5e7df7cb
Author: Nicolai Hähnle <nicolai.haeh...@amd.com>
Date: Fri Nov 18 20:51:56 2016 +0100
st/mesa: skip lower_output_reads when possible
Reviewed-by: Marek Olšák <marek.ol...@amd.com>
---
src/mesa/state_tracker/st_glsl_to_tgsi.cpp | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
index 8a247ea..7720edf 100644
--- a/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
+++ b/src/mesa/state_tracker/st_glsl_to_tgsi.cpp
@@ -6445,7 +6445,8 @@ get_mesa_program_tgsi(struct gl_context *ctx,
prog->Parameters);
/* Remove reads from output registers. */
- lower_output_reads(shader->Stage, shader->ir);
+ if (!pscreen->get_param(pscreen, PIPE_CAP_TGSI_CAN_READ_OUTPUTS))
+ lower_output_reads(shader->Stage, shader->ir);
/* Emit intermediate IR for main(). */
visit_exec_list(shader->ir, v);
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