Track the in-use state of resource bindings in PipelineState

[libs/gl.git] / source / core / program.cpp

diff --git a/source/core/program.cpp b/source/core/program.cpp
index 471803c5b4ab0edfefcfe9253dafd42cca95f0a5..533dca610c9585f649420edadd34bf4f5e858617 100644 (file)
--- a/source/core/program.cpp
+++ b/source/core/program.cpp
@@ -63,6 +63,13 @@ void Program::add_stages(const Module &mod, const map<string, int> &spec_values)
 
        finalize_uniforms();
 
+       for(const ReflectData::UniformInfo &u: reflect_data.uniforms)
+               if(u.binding>=0)
+                       reflect_data.used_bindings.push_back(u.binding);
+       for(const ReflectData::UniformBlockInfo &b: reflect_data.uniform_blocks)
+               reflect_data.used_bindings.push_back(b.bind_point);
+       sort(reflect_data.used_bindings);
+
        for(const ReflectData::UniformInfo &u: reflect_data.uniforms)
                require_type(u.type);
        for(const ReflectData::AttributeInfo &a: reflect_data.attributes)
@@ -252,6 +259,12 @@ int Program::get_uniform_binding(Tag tag) const
        return i!=reflect_data.uniforms.end() && i->tag==tag ? i->binding : -1;
 }
 
+bool Program::uses_binding(int binding) const
+{
+       auto i = lower_bound(reflect_data.used_bindings, binding);
+       return i!=reflect_data.used_bindings.end() && *i==binding;
+}
+
 const ReflectData::AttributeInfo &Program::get_attribute_info(const string &name) const
 {
        auto i = lower_bound_member(reflect_data.attributes, name, &ReflectData::AttributeInfo::name);