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authorIago Toral Quiroga <[email protected]>2017-03-23 11:54:16 +0100
committerIago Toral Quiroga <[email protected]>2017-03-24 08:11:53 +0100
commit023ea3772dfcd81e6a5822a1812ff991d68cccd8 (patch)
tree84eed0e61e23318b9426860ee807190948124626 /src/intel/vulkan
parent4da1832c00ab93cbf90b14501840dd698565a869 (diff)
nir/lower_wpos_center: support adding sample position to fragment coordinate
According to section 14.6 of the Vulkan specification: "When sample shading is enabled, the x and y components of FragCoord reflect the location of the sample corresponding to the shader invocation." So add a boolean parameter to the lowering pass to select this behavior when we need it. Reviewed-by: Jason Ekstrand <[email protected]>
Diffstat (limited to 'src/intel/vulkan')
-rw-r--r--src/intel/vulkan/anv_pipeline.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/intel/vulkan/anv_pipeline.c b/src/intel/vulkan/anv_pipeline.c
index 23274ef2a87..8ad2d485360 100644
--- a/src/intel/vulkan/anv_pipeline.c
+++ b/src/intel/vulkan/anv_pipeline.c
@@ -158,7 +158,7 @@ anv_shader_compile_to_nir(struct anv_device *device,
nir_var_shader_in | nir_var_shader_out | nir_var_system_value);
if (stage == MESA_SHADER_FRAGMENT)
- NIR_PASS_V(nir, nir_lower_wpos_center);
+ NIR_PASS_V(nir, nir_lower_wpos_center, false);
/* Now that we've deleted all but the main function, we can go ahead and
* lower the rest of the constant initializers.