dawn-cmake/generator/templates/opengl/OpenGLFunctionsBase.h

60 lines
2.3 KiB
C++

//* Copyright 2019 The Dawn Authors
//*
//* Licensed under the Apache License, Version 2.0 (the "License");
//* you may not use this file except in compliance with the License.
//* You may obtain a copy of the License at
//*
//* http://www.apache.org/licenses/LICENSE-2.0
//*
//* Unless required by applicable law or agreed to in writing, software
//* distributed under the License is distributed on an "AS IS" BASIS,
//* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
//* See the License for the specific language governing permissions and
//* limitations under the License.
#ifndef DAWNNATIVE_OPENGL_OPENGLFUNCTIONSBASE_H_
#define DAWNNATIVE_OPENGL_OPENGLFUNCTIONSBASE_H_
#include <unordered_set>
#include "dawn/native/Error.h"
#include "dawn/native/opengl/opengl_platform.h"
namespace dawn::native::opengl {
using GetProcAddress = void* (*) (const char*);
struct OpenGLFunctionsBase {
public:
{% for block in header_blocks %}
// {{block.description}}
{% for proc in block.procs %}
{{proc.PFNGLPROCNAME()}} {{proc.ProcName()}} = nullptr;
{% endfor %}
{% endfor%}
// GL_ANGLE_base_vertex_base_instance
// See crbug.com/dawn/1715 for why this is embedded
PFNGLDRAWARRAYSINSTANCEDBASEINSTANCEANGLEPROC DrawArraysInstancedBaseInstanceANGLE = nullptr;
PFNGLDRAWELEMENTSINSTANCEDBASEVERTEXBASEINSTANCEANGLEPROC DrawElementsInstancedBaseVertexBaseInstanceANGLE = nullptr;
PFNGLMULTIDRAWARRAYSINSTANCEDBASEINSTANCEANGLEPROC MultiDrawArraysInstancedBaseInstanceANGLE = nullptr;
PFNGLMULTIDRAWELEMENTSINSTANCEDBASEVERTEXBASEINSTANCEANGLEPROC MultiDrawElementsInstancedBaseVertexBaseInstanceANGLE = nullptr;
bool IsGLExtensionSupported(const char* extension) const;
protected:
MaybeError LoadDesktopGLProcs(GetProcAddress getProc, int majorVersion, int minorVersion);
MaybeError LoadOpenGLESProcs(GetProcAddress getProc, int majorVersion, int minorVersion);
private:
template<typename T>
MaybeError LoadProc(GetProcAddress getProc, T* memberProc, const char* name);
void InitializeSupportedGLExtensions();
std::unordered_set<std::string> mSupportedGLExtensionsSet;
};
} // namespace dawn::native::opengl
#endif // DAWNNATIVE_OPENGL_OPENGLFUNCTIONSBASE_H_