diff options
Diffstat (limited to 'source/gameengine/Rasterizer/RAS_OpenGLRasterizer/RAS_OpenGLSync.cpp')
-rw-r--r-- | source/gameengine/Rasterizer/RAS_OpenGLRasterizer/RAS_OpenGLSync.cpp | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/source/gameengine/Rasterizer/RAS_OpenGLRasterizer/RAS_OpenGLSync.cpp b/source/gameengine/Rasterizer/RAS_OpenGLRasterizer/RAS_OpenGLSync.cpp new file mode 100644 index 00000000000..ebb4a9a3ca1 --- /dev/null +++ b/source/gameengine/Rasterizer/RAS_OpenGLRasterizer/RAS_OpenGLSync.cpp @@ -0,0 +1,82 @@ +/* + * ***** BEGIN GPL LICENSE BLOCK ***** + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License + * as published by the Free Software Foundation; either version 2 + * of the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software Foundation, + * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * +* The Original Code is Copyright (C) 2015, Blender Foundation +* All rights reserved. +* +* The Original Code is: all of this file. +* +* Contributor(s): Blender Foundation. + * + * ***** END GPL LICENSE BLOCK ***** + */ + +#include "glew-mx.h" + +#include <stdio.h> + +#include "RAS_OpenGLSync.h" + +RAS_OpenGLSync::RAS_OpenGLSync() + :m_sync(NULL) +{ +} + +RAS_OpenGLSync::~RAS_OpenGLSync() +{ + Destroy(); +} + +bool RAS_OpenGLSync::Create(RAS_SYNC_TYPE type) +{ + if (m_sync) { + printf("RAS_OpenGLSync::Create(): sync already exists, destroy first\n"); + return false; + } + if (type != RAS_SYNC_TYPE_FENCE) { + printf("RAS_OpenGLSync::Create(): only RAS_SYNC_TYPE_FENCE are currently supported\n"); + return false; + } + if (!GLEW_ARB_sync) { + printf("RAS_OpenGLSync::Create(): ARB_sync extension is needed to create sync object\n"); + return false; + } + m_sync = glFenceSync(GL_SYNC_GPU_COMMANDS_COMPLETE, 0); + if (!m_sync) { + printf("RAS_OpenGLSync::Create(): glFenceSync() failed"); + return false; + } + return true; +} + +void RAS_OpenGLSync::Destroy() +{ + if (m_sync) { + glDeleteSync(m_sync); + m_sync = NULL; + } +} + +void RAS_OpenGLSync::Wait() +{ + if (m_sync) { + // this is needed to ensure that the sync is in the GPU + glFlush(); + // block until the operation have completed + glWaitSync(m_sync, 0, GL_TIMEOUT_IGNORED); + } +} |