mirror of
https://github.com/intel/compute-runtime.git
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50 lines
2.1 KiB
C++
50 lines
2.1 KiB
C++
/*
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* Copyright (c) 2018, Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included
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* in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "runtime/sharings/gl/gl_sharing.h"
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namespace OCLRT {
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GLContextGuard::GLContextGuard(GLSharingFunctions &sharingFcns) : sharingFunctions(&sharingFcns) {
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currentContextHandle = sharingFcns.getCurrentContext();
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currentDisplayHandle = sharingFcns.getCurrentDisplay();
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auto ctxToMakeCurrent = sharingFcns.getContextHandle();
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if (currentContextHandle == 0) {
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ctxToMakeCurrent = sharingFcns.getBackupContextHandle();
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}
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if (currentContextHandle != sharingFcns.getContextHandle() && currentContextHandle != sharingFcns.getBackupContextHandle()) {
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if (sharingFcns.makeCurrent(ctxToMakeCurrent) == GL_FALSE) {
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while (sharingFcns.makeCurrent(sharingFcns.getBackupContextHandle()) == GL_FALSE) {
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;
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}
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}
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}
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}
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GLContextGuard::~GLContextGuard() {
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if (currentContextHandle != sharingFunctions->getContextHandle()) {
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sharingFunctions->makeCurrent(currentContextHandle, currentDisplayHandle);
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}
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}
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} // namespace OCLRT
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