glsl: Add built-in constants for ARB_shader_image_load_store.

v2: Add them on GLSL version 4.20 too.

Reviewed-by: Paul Berry <[email protected]>

1 files changed, 20 insertions, 0 deletions

diff --git a/src/glsl/builtin_variables.cpp b/src/glsl/builtin_variables.cpp
index cc423383df8..2fa509f2765 100644
--- a/src/glsl/builtin_variables.cpp
+++ b/src/glsl/builtin_variables.cpp
@@ -711,6 +711,26 @@ builtin_variable_generator::generate_constants()
        * in ast_cs_input_layout::hir().
        */
    }
+
+   if (state->is_version(420, 0) ||
+       state->ARB_shader_image_load_store_enable) {
+      add_const("gl_MaxImageUnits",
+                state->Const.MaxImageUnits);
+      add_const("gl_MaxCombinedImageUnitsAndFragmentOutputs",
+                state->Const.MaxCombinedImageUnitsAndFragmentOutputs);
+      add_const("gl_MaxImageSamples",
+                state->Const.MaxImageSamples);
+      add_const("gl_MaxVertexImageUniforms",
+                state->Const.MaxVertexImageUniforms);
+      add_const("gl_MaxTessControlImageUniforms", 0);
+      add_const("gl_MaxTessEvaluationImageUniforms", 0);
+      add_const("gl_MaxGeometryImageUniforms",
+                state->Const.MaxGeometryImageUniforms);
+      add_const("gl_MaxFragmentImageUniforms",
+                state->Const.MaxFragmentImageUniforms);
+      add_const("gl_MaxCombinedImageUniforms",
+                state->Const.MaxCombinedImageUniforms);
+   }
 }