Mirrors/overte
3
0
Fork 0
mirror of https://github.com/overte-org/overte.git synced 2025-04-20 18:23:54 +02:00
Code Issues Projects Releases Packages Wiki Activity Actions 2

Be a little less heavy handed with the GPU sync

Browse source
This commit is contained in:
Brad Davis 2015-06-09 10:25:05 -07:00
parent 5680d58a19
commit 64bb120712
1 changed files with 10 additions and 2 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

12
interface/src/devices/OculusManager.cpp
View file

@ -710,13 +710,21 @@ void OculusManager::display(QGLWidget * glCanvas, RenderArgs* renderArgs, const
Q_ASSERT(OVR_SUCCESS(res));
_swapFbo->Increment();
#else
glFinish();
GLuint textureId = gpu::GLBackend::getTextureID(finalFbo->getRenderBuffer(0));
GLsync syncObject = glFenceSync(GL_SYNC_GPU_COMMANDS_COMPLETE, 0);
glFlush();
_outputWindow->makeCurrent();
// force the compositing context to wait for the texture
// rendering to complete before it starts the distortion rendering,
// but without triggering a CPU/GPU synchronization
glWaitSync(syncObject, 0, GL_TIMEOUT_IGNORED);
GLuint textureId = gpu::GLBackend::getTextureID(finalFbo->getRenderBuffer(0));
for_each_eye([&](ovrEyeType eye) {
ovrGLTexture & glEyeTexture = reinterpret_cast<ovrGLTexture&>(_eyeTextures[eye]);
glEyeTexture.OGL.TexId = textureId;
});
// restore our normal viewport
ovrHmd_EndFrame(_ovrHmd, eyeRenderPose, _eyeTextures);
glCanvas->makeCurrent();