6b9ab1f7a2
Note: This is not about functionality, but about using the same stub file we are using in Blender for the game engine in blender2.8.
83 lines
2.0 KiB
C++
83 lines
2.0 KiB
C++
/*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2015, Blender Foundation
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* All rights reserved.
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*
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* The Original Code is: all of this file.
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*
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* Contributor(s): Blender Foundation.
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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#include "GPU_glew.h"
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#include <stdio.h>
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#include "RAS_OpenGLSync.h"
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RAS_OpenGLSync::RAS_OpenGLSync()
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:m_sync(NULL)
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{
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}
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RAS_OpenGLSync::~RAS_OpenGLSync()
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{
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Destroy();
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}
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bool RAS_OpenGLSync::Create(RAS_SYNC_TYPE type)
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{
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if (m_sync) {
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printf("RAS_OpenGLSync::Create(): sync already exists, destroy first\n");
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return false;
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}
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if (type != RAS_SYNC_TYPE_FENCE) {
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printf("RAS_OpenGLSync::Create(): only RAS_SYNC_TYPE_FENCE are currently supported\n");
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return false;
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}
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if (!GLEW_ARB_sync) {
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printf("RAS_OpenGLSync::Create(): ARB_sync extension is needed to create sync object\n");
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return false;
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}
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m_sync = glFenceSync(GL_SYNC_GPU_COMMANDS_COMPLETE, 0);
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if (!m_sync) {
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printf("RAS_OpenGLSync::Create(): glFenceSync() failed");
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return false;
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}
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return true;
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}
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void RAS_OpenGLSync::Destroy()
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{
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if (m_sync) {
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glDeleteSync(m_sync);
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m_sync = NULL;
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}
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}
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void RAS_OpenGLSync::Wait()
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{
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if (m_sync) {
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// this is needed to ensure that the sync is in the GPU
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glFlush();
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// block until the operation have completed
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glWaitSync(m_sync, 0, GL_TIMEOUT_IGNORED);
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}
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}
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