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glsl: Add built-in constants for ARB_shader_image_load_store.

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v2: Add them on GLSL version 4.20 too.

Reviewed-by: Paul Berry <stereotype441@gmail.com>
This commit is contained in:
Francisco Jerez
2014-02-12 17:15:21 +01:00
parent 6057300ec6
commit 87acc7c650
3 changed files with 37 additions and 0 deletions
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20
src/glsl/builtin_variables.cpp
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@@ -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);
}
}

8
src/glsl/glsl_parser_extras.cpp
View File

@@ -130,6 +130,14 @@ _mesa_glsl_parse_state::_mesa_glsl_parse_state(struct gl_context *_ctx,
for (unsigned i = 0; i < Elements(this->Const.MaxComputeWorkGroupSize); i++)
this->Const.MaxComputeWorkGroupSize[i] = ctx->Const.MaxComputeWorkGroupSize[i];
this->Const.MaxImageUnits = ctx->Const.MaxImageUnits;
this->Const.MaxCombinedImageUnitsAndFragmentOutputs = ctx->Const.MaxCombinedImageUnitsAndFragmentOutputs;
this->Const.MaxImageSamples = ctx->Const.MaxImageSamples;
this->Const.MaxVertexImageUniforms = ctx->Const.Program[MESA_SHADER_VERTEX].MaxImageUniforms;
this->Const.MaxGeometryImageUniforms = ctx->Const.Program[MESA_SHADER_GEOMETRY].MaxImageUniforms;
this->Const.MaxFragmentImageUniforms = ctx->Const.Program[MESA_SHADER_FRAGMENT].MaxImageUniforms;
this->Const.MaxCombinedImageUniforms = ctx->Const.MaxCombinedImageUniforms;
this->current_function = NULL;
this->toplevel_ir = NULL;
this->found_return = false;

9
src/glsl/glsl_parser_extras.h
View File

@@ -269,6 +269,15 @@ struct _mesa_glsl_parse_state {
/* ARB_compute_shader */
unsigned MaxComputeWorkGroupCount[3];
unsigned MaxComputeWorkGroupSize[3];
/* ARB_shader_image_load_store */
unsigned MaxImageUnits;
unsigned MaxCombinedImageUnitsAndFragmentOutputs;
unsigned MaxImageSamples;
unsigned MaxVertexImageUniforms;
unsigned MaxGeometryImageUniforms;
unsigned MaxFragmentImageUniforms;
unsigned MaxCombinedImageUniforms;
} Const;
/**