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[Feat]: Implement glBindFragDataLocation and glGetFragDataLocation

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swung0x48
2025-11-13 13:23:37 +08:00
parent 5b2d18fdff
commit b3b304e9e6
5 changed files with 138 additions and 11 deletions
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MobileGL/MG_State/GLState/ProgramState/ProgramObject.cpp
+20 -2
View File
@@ -86,7 +86,8 @@ namespace MobileGL {
MG_Util::ShaderTranspiler::ProgramAttrib attrib{
.shaders = Move(shaders),
.explicitVertexInLocations = m_explicitAttribLocations
.explicitVertexInLocations = m_explicitAttribLocations,
.explicitFragmentOutLocations = m_explicitFragDataLocation
};
MGLOG_D("ProgramObject %u: Calling ShaderCompiler::LinkProgram", m_externalIndex);
@@ -376,7 +377,8 @@ namespace MobileGL {
ProgramAttrib attrib{
.shaders = Move(shaders),
.explicitVertexInLocations = m_explicitAttribLocations
.explicitVertexInLocations = m_explicitAttribLocations,
.explicitFragmentOutLocations = m_explicitFragDataLocation
};
MGLOG_D("ProgramObject %u: GenerateBinary - linking program for binary", m_externalIndex);
auto programResult = ShaderCompiler::LinkProgram(attrib);
@@ -472,6 +474,22 @@ namespace MobileGL {
MGLOG_D("ProgramObject %u: SetExplicitVertexInLocation - stored explicit location for '%s' -> %u",
m_externalIndex, name, index);
}
void ProgramObject::SetExplicitFragmentOutLocation(Uint index, const char* name) {
MGLOG_D("ProgramObject %u: SetExplicitFragmentOutLocation called name='%s' index=%u", m_externalIndex, name,
index);
m_explicitFragDataLocation[name] = index;
MGLOG_D("ProgramObject %u: SetExplicitFragmentOutLocation - stored explicit location for '%s' -> %u",
m_externalIndex, name, index);
}
Int ProgramObject::GetFragmentDataLocation(const char* name) {
// TODO: should retrieve "post-mortem" location from glslang instead
auto it = m_explicitFragDataLocation.find(name);
if (it == m_explicitFragDataLocation.end())
return -1;
return it->second;
}
} // namespace GLState
} // namespace MG_State
} // namespace MobileGL
MobileGL/MG_State/GLState/ProgramState/ProgramObject.h
+6 -1
View File
@@ -18,6 +18,8 @@ namespace MobileGL {
void MarkAsDeleted();
void SetExplicitVertexInLocation(Uint index, const char* name);
void SetExplicitFragmentOutLocation(Uint index, const char* name);
Int GetFragmentDataLocation(const char* name);
Vector<SharedPtr<ShaderObject>>& GetAttachedShaders();
const String& GetInfoLog() const { return m_infoLog; }
@@ -119,13 +121,16 @@ namespace MobileGL {
Vector<Vector<unsigned>> m_generatedSpirv;
// Attributes
// Attributes (Vertex in)
UnorderedMap<String, Uint> m_explicitAttribLocations;
Vector<String> m_attribs;
Vector<GLenum> m_attribTypes;
// For SpvcSession::SetVertexAttribLocation()
// UnorderedMap<String, Uint> m_attribLocation;
// FragData (Frag out)
UnorderedMap<String, Uint> m_explicitFragDataLocation;
// Uniforms
UnorderedMap<String, Uint> m_uniformLocations;
// Ordered by location,