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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>
94 lines
3.4 KiB
C++
94 lines
3.4 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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#include "dawn/native/opengl/OpenGLFunctionsBase_autogen.h"
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namespace dawn::native::opengl {
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template<typename T>
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MaybeError OpenGLFunctionsBase::LoadProc(GetProcAddress getProc, T* memberProc, const char* name) {
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*memberProc = reinterpret_cast<T>(getProc(name));
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if (DAWN_UNLIKELY(memberProc == nullptr)) {
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return DAWN_INTERNAL_ERROR(std::string("Couldn't load GL proc: ") + name);
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}
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return {};
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}
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MaybeError OpenGLFunctionsBase::LoadOpenGLESProcs(GetProcAddress getProc, int majorVersion, int minorVersion) {
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{% for block in gles_blocks %}
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// OpenGL ES {{block.version.major}}.{{block.version.minor}}
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if (majorVersion > {{block.version.major}} || (majorVersion == {{block.version.major}} && minorVersion >= {{block.version.minor}})) {
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{% for proc in block.procs %}
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DAWN_TRY(LoadProc(getProc, &{{proc.ProcName()}}, "{{proc.glProcName()}}"));
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{% endfor %}
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}
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{% endfor %}
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InitializeSupportedGLExtensions();
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{% for block in extension_gles_blocks %}
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// {{block.extension}}
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if (IsGLExtensionSupported("{{block.extension}}")) {
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{% for proc in block.procs %}
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DAWN_TRY(LoadProc(getProc, &{{proc.ProcName()}}, "{{proc.glProcName()}}"));
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{% endfor %}
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}
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{% endfor %}
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return {};
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}
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MaybeError OpenGLFunctionsBase::LoadDesktopGLProcs(GetProcAddress getProc, int majorVersion, int minorVersion) {
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{% for block in desktop_gl_blocks %}
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// Desktop OpenGL {{block.version.major}}.{{block.version.minor}}
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if (majorVersion > {{block.version.major}} || (majorVersion == {{block.version.major}} && minorVersion >= {{block.version.minor}})) {
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{% for proc in block.procs %}
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DAWN_TRY(LoadProc(getProc, &{{proc.ProcName()}}, "{{proc.glProcName()}}"));
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{% endfor %}
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}
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{% endfor %}
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InitializeSupportedGLExtensions();
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{% for block in extension_desktop_gl_blocks %}
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// {{block.extension}}
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if (IsGLExtensionSupported("{{block.extension}}")) {
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{% for proc in block.procs %}
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DAWN_TRY(LoadProc(getProc, &{{proc.ProcName()}}, "{{proc.glProcName()}}"));
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{% endfor %}
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}
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{% endfor %}
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return {};
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}
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void OpenGLFunctionsBase::InitializeSupportedGLExtensions() {
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int32_t numExtensions;
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GetIntegerv(GL_NUM_EXTENSIONS, &numExtensions);
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for (int32_t i = 0; i < numExtensions; ++i) {
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const char* extensionName = reinterpret_cast<const char*>(GetStringi(GL_EXTENSIONS, i));
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mSupportedGLExtensionsSet.insert(extensionName);
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}
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}
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bool OpenGLFunctionsBase::IsGLExtensionSupported(const char* extension) const {
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ASSERT(extension != nullptr);
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return mSupportedGLExtensionsSet.count(extension) != 0;
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}
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} // namespace dawn::native::opengl
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