From de45da6a8c3091de400adc468682779abc989109 Mon Sep 17 00:00:00 2001 From: Kenneth Graunke Date: Wed, 18 May 2016 11:06:08 -0700 Subject: [PATCH] spirv: Handle the PixelCenterInteger execution mode. This isn't allowed by Vulkan, but might be useful someday for SPIR-V in OpenGL (if that ever becomes a thing). It's easy enough to hook up, and as precedent, we already do so for OriginLowerLeft. Signed-off-by: Kenneth Graunke Reviewed-by: Jason Ekstrand --- src/compiler/spirv/spirv_to_nir.c | 3 +++ src/compiler/spirv/vtn_private.h | 1 + src/compiler/spirv/vtn_variables.c | 3 +++ 3 files changed, 7 insertions(+) diff --git a/src/compiler/spirv/spirv_to_nir.c b/src/compiler/spirv/spirv_to_nir.c index e60bb54106d..359fa5c583a 100644 --- a/src/compiler/spirv/spirv_to_nir.c +++ b/src/compiler/spirv/spirv_to_nir.c @@ -2330,6 +2330,9 @@ vtn_handle_execution_mode(struct vtn_builder *b, struct vtn_value *entry_point, break; case SpvExecutionModePixelCenterInteger: + b->pixel_center_integer = true; + break; + case SpvExecutionModeXfb: assert(!"Unhandled execution mode"); break; diff --git a/src/compiler/spirv/vtn_private.h b/src/compiler/spirv/vtn_private.h index 3840d8c4b65..3ecffada2ba 100644 --- a/src/compiler/spirv/vtn_private.h +++ b/src/compiler/spirv/vtn_private.h @@ -378,6 +378,7 @@ struct vtn_builder { const char *entry_point_name; struct vtn_value *entry_point; bool origin_upper_left; + bool pixel_center_integer; struct vtn_function *func; struct exec_list functions; diff --git a/src/compiler/spirv/vtn_variables.c b/src/compiler/spirv/vtn_variables.c index bbe1166aff0..0c7f0f76718 100644 --- a/src/compiler/spirv/vtn_variables.c +++ b/src/compiler/spirv/vtn_variables.c @@ -1016,6 +1016,9 @@ var_decoration_cb(struct vtn_builder *b, struct vtn_value *val, int member, if (builtin == SpvBuiltInFragCoord || builtin == SpvBuiltInSamplePosition) nir_var->data.origin_upper_left = b->origin_upper_left; + + if (builtin == SpvBuiltInFragCoord) + nir_var->data.pixel_center_integer = b->pixel_center_integer; break; } case SpvDecorationRowMajor: -- 2.30.2