From: Dave Airlie <airl...@redhat.com>
This allows drivers to work out if a shader contains any
double opcodes easily.
Signed-off-by: Dave Airlie <airl...@redhat.com>
---
src/gallium/auxiliary/tgsi/tgsi_scan.c | 4 ++++
src/gallium/auxiliary/tgsi/tgsi_scan.h | 2 +-
2 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/src/gallium/auxiliary/tgsi/tgsi_scan.c
b/src/gallium/auxiliary/tgsi/tgsi_scan.c
index e6011d2..e19b8a1 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_scan.c
+++ b/src/gallium/auxiliary/tgsi/tgsi_scan.c
@@ -97,6 +97,10 @@ tgsi_scan_shader(const struct tgsi_token *tokens,
assert(fullinst->Instruction.Opcode < TGSI_OPCODE_LAST);
info->opcode_count[fullinst->Instruction.Opcode]++;
+ if (fullinst->Instruction.Opcode >= TGSI_OPCODE_F2D ||
+ fullinst->Instruction.Opcode < TGSI_OPCODE_DRSQ)
+ info->uses_doubles = true;
+
for (i = 0; i < fullinst->Instruction.NumSrcRegs; i++) {
const struct tgsi_full_src_register *src =
&fullinst->Src[i];
diff --git a/src/gallium/auxiliary/tgsi/tgsi_scan.h
b/src/gallium/auxiliary/tgsi/tgsi_scan.h
index 5dc9267..daa73cc 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_scan.h
+++ b/src/gallium/auxiliary/tgsi/tgsi_scan.h
@@ -86,7 +86,7 @@ struct tgsi_shader_info
boolean writes_viewport_index;
boolean writes_layer;
boolean is_msaa_sampler[PIPE_MAX_SAMPLERS];
-
+ boolean uses_doubles; /**< uses any of the double instructions */
unsigned clipdist_writemask;
unsigned culldist_writemask;
unsigned num_written_culldistance;
--
1.9.3
_______________________________________________
mesa-dev mailing list
mesa-dev@lists.freedesktop.org
http://lists.freedesktop.org/mailman/listinfo/mesa-dev
