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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>
45 lines
1.5 KiB
C++
45 lines
1.5 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/OpenGLFunctions.h"
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#include <cctype>
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namespace dawn::native::opengl {
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MaybeError OpenGLFunctions::Initialize(GetProcAddress getProc) {
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DAWN_TRY(mVersion.Initialize(getProc));
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if (mVersion.IsES()) {
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DAWN_TRY(LoadOpenGLESProcs(getProc, mVersion.GetMajor(), mVersion.GetMinor()));
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} else {
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DAWN_TRY(LoadDesktopGLProcs(getProc, mVersion.GetMajor(), mVersion.GetMinor()));
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}
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return {};
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}
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const OpenGLVersion& OpenGLFunctions::GetVersion() const {
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return mVersion;
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}
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bool OpenGLFunctions::IsAtLeastGL(uint32_t majorVersion, uint32_t minorVersion) const {
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return mVersion.IsDesktop() && mVersion.IsAtLeast(majorVersion, minorVersion);
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}
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bool OpenGLFunctions::IsAtLeastGLES(uint32_t majorVersion, uint32_t minorVersion) const {
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return mVersion.IsES() && mVersion.IsAtLeast(majorVersion, minorVersion);
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}
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} // namespace dawn::native::opengl
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