Mesa (master): glsl/nir: add pixel_center_integer to shader info

[Timothy Arceri]

Module: Mesa
Branch: master
Commit: 347038baa9e897aee32df9db99a099146f249f42
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=347038baa9e897aee32df9db99a099146f249f42

Author: Timothy Arceri <tarceri at itsqueeze.com>
Date:   Fri Feb 16 16:10:58 2018 +1100

glsl/nir: add pixel_center_integer to shader info

Reviewed-by: Kenneth Graunke <kenneth at whitecape.org>

---

 src/compiler/glsl/glsl_to_nir.cpp | 5 +++++
 src/compiler/shader_info.h        | 2 ++
 2 files changed, 7 insertions(+)

diff --git a/src/compiler/glsl/glsl_to_nir.cpp b/src/compiler/glsl/glsl_to_nir.cpp
index 1a579f41cd..7a9d15015e 100644
--- a/src/compiler/glsl/glsl_to_nir.cpp
+++ b/src/compiler/glsl/glsl_to_nir.cpp
@@ -406,6 +406,11 @@ nir_visitor::visit(ir_variable *ir)
    var->data.pixel_center_integer = ir->data.pixel_center_integer;
    var->data.location_frac = ir->data.location_frac;
 
+   if (var->data.pixel_center_integer) {
+      assert(shader->info.stage == MESA_SHADER_FRAGMENT);
+      shader->info.fs.pixel_center_integer = true;
+   }
+
    switch (ir->data.depth_layout) {
    case ir_depth_layout_none:
       var->data.depth_layout = nir_depth_layout_none;
diff --git a/src/compiler/shader_info.h b/src/compiler/shader_info.h
index f6dedb8d62..e7fd7dbe62 100644
--- a/src/compiler/shader_info.h
+++ b/src/compiler/shader_info.h
@@ -159,6 +159,8 @@ typedef struct shader_info {
 
          bool post_depth_coverage;
 
+         bool pixel_center_integer;
+
          /** gl_FragDepth layout for ARB_conservative_depth. */
          enum gl_frag_depth_layout depth_layout;
       } fs;