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55183e6c3a
Only load extension entry points if the extension is supported. From the eglGetProcAddress manpage: "A non-NULL return value does not guarantee that an extension function is actually supported at runtime. The client must also make a corresponding query, such as glGetString(GL_EXTENSIONS) for OpenGL and OpenGL ES extensions [...] to determine if a function is supported by EGL or a specific client API context." This required moving extension initialization from OpenGLFunctions into OpenGLFunctionsBase. Change-Id: Ib4e8360ba455818701990b4476689b651d097ca8 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/121760 Commit-Queue: Stephen White <senorblanco@chromium.org> Kokoro: Kokoro <noreply+kokoro@google.com> Reviewed-by: Austin Eng <enga@chromium.org> Reviewed-by: Corentin Wallez <cwallez@chromium.org>
52 lines
1.8 KiB
C++
52 lines
1.8 KiB
C++
//* Copyright 2019 The Dawn Authors
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//*
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//* Licensed under the Apache License, Version 2.0 (the "License");
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//* you may not use this file except in compliance with the License.
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//* You may obtain a copy of the License at
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//*
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//* http://www.apache.org/licenses/LICENSE-2.0
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//*
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//* Unless required by applicable law or agreed to in writing, software
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//* distributed under the License is distributed on an "AS IS" BASIS,
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//* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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//* See the License for the specific language governing permissions and
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//* limitations under the License.
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#ifndef DAWNNATIVE_OPENGL_OPENGLFUNCTIONSBASE_H_
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#define DAWNNATIVE_OPENGL_OPENGLFUNCTIONSBASE_H_
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#include <unordered_set>
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#include "dawn/native/Error.h"
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#include "dawn/native/opengl/opengl_platform.h"
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namespace dawn::native::opengl {
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using GetProcAddress = void* (*) (const char*);
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struct OpenGLFunctionsBase {
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public:
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{% for block in header_blocks %}
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// {{block.description}}
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{% for proc in block.procs %}
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{{proc.PFNGLPROCNAME()}} {{proc.ProcName()}} = nullptr;
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{% endfor %}
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{% endfor%}
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bool IsGLExtensionSupported(const char* extension) const;
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protected:
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MaybeError LoadDesktopGLProcs(GetProcAddress getProc, int majorVersion, int minorVersion);
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MaybeError LoadOpenGLESProcs(GetProcAddress getProc, int majorVersion, int minorVersion);
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private:
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template<typename T>
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MaybeError LoadProc(GetProcAddress getProc, T* memberProc, const char* name);
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void InitializeSupportedGLExtensions();
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std::unordered_set<std::string> mSupportedGLExtensionsSet;
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};
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} // namespace dawn::native::opengl
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#endif // DAWNNATIVE_OPENGL_OPENGLFUNCTIONSBASE_H_
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