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03badec5d7
We need the ability to parse the GL version irrespective of GL extension handling, so pull it out into its own class. BUG=dawn:580 Change-Id: I620267146159ba8e4fa8cba5f6ebff57e981add0 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/33540 Reviewed-by: Austin Eng <enga@chromium.org> Commit-Queue: Stephen White <senorblanco@chromium.org>
62 lines
2.2 KiB
C++
62 lines
2.2 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 { namespace 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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InitializeSupportedGLExtensions();
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return {};
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}
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void OpenGLFunctions::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 OpenGLFunctions::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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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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