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authorKenneth Graunke <kenneth@whitecape.org>2016-04-18 18:11:01 -0700
committerKenneth Graunke <kenneth@whitecape.org>2016-04-20 16:18:47 -0700
commit528255b0b1498d22c820cecc5d75591d25ddb375 (patch)
tree200f270d771d3f65db05e9bb7be8cf5197bc9bae /src
parent43ed1f73f8bb351b6eaec66875c51f2bad9db4eb (diff)
i965: Flip key->compute_sample_id check.
This just moves the simple case first. Signed-off-by: Kenneth Graunke <kenneth@whitecape.org> Reviewed-by: Matt Turner <mattst88@gmail.com>
Diffstat (limited to 'src')
-rw-r--r--src/mesa/drivers/dri/i965/brw_fs.cpp14
1 files changed, 7 insertions, 7 deletions
diff --git a/src/mesa/drivers/dri/i965/brw_fs.cpp b/src/mesa/drivers/dri/i965/brw_fs.cpp
index aedb5a23f02..551294dd7eb 100644
--- a/src/mesa/drivers/dri/i965/brw_fs.cpp
+++ b/src/mesa/drivers/dri/i965/brw_fs.cpp
@@ -1337,7 +1337,13 @@ fs_visitor::emit_sampleid_setup()
const fs_builder abld = bld.annotate("compute sample id");
fs_reg *reg = new(this->mem_ctx) fs_reg(vgrf(glsl_type::int_type));
- if (key->compute_sample_id) {
+ if (!key->compute_sample_id) {
+ /* As per GL_ARB_sample_shading specification:
+ * "When rendering to a non-multisample buffer, or if multisample
+ * rasterization is disabled, gl_SampleID will always be zero."
+ */
+ abld.MOV(*reg, brw_imm_d(0));
+ } else {
fs_reg t1(VGRF, alloc.allocate(1), BRW_REGISTER_TYPE_D);
t1.set_smear(0);
fs_reg t2(VGRF, alloc.allocate(1), BRW_REGISTER_TYPE_W);
@@ -1380,12 +1386,6 @@ fs_visitor::emit_sampleid_setup()
* width=4, hstride=0 of t2 during an ADD instruction.
*/
abld.emit(FS_OPCODE_SET_SAMPLE_ID, *reg, t1, t2);
- } else {
- /* As per GL_ARB_sample_shading specification:
- * "When rendering to a non-multisample buffer, or if multisample
- * rasterization is disabled, gl_SampleID will always be zero."
- */
- abld.MOV(*reg, brw_imm_d(0));
}
return reg;