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[client] enable vsync again but draw to front for cursor updates

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This commit is contained in:
Geoffrey McRae 2017-12-13 05:55:01 +11:00
parent e7511b30bb
commit 85c83d2417
2 changed files with 15 additions and 6 deletions
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1
client/main.c
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@ -661,7 +661,6 @@ int run()
FcPatternDestroy(pat);
}
SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 0);
state.window = SDL_CreateWindow(
"Looking Glass (Client)",
params.center ? SDL_WINDOWPOS_CENTERED : params.x,

20
client/renderers/opengl.c
View file

@ -124,7 +124,7 @@ bool lgr_opengl_initialize(void ** opaque, const LG_RendererParams params, const
}
}
SDL_GL_SetSwapInterval(0);
SDL_GL_SetSwapInterval(1);
// check if the GPU supports GL_ARB_buffer_storage first
// there is no advantage to this renderer if it is not present.
@ -669,16 +669,24 @@ bool lgr_opengl_render(void * opaque)
glEnable(GL_SCISSOR_TEST);
}
glXWaitVideoSyncSGI(1, 0, &this->gpuFrameCount);
glFinish();
glCallList(this->texList + this->texIndex);
this->mouseRepair = false;
lgr_opengl_draw_mouse(this);
if (this->fpsTexture)
glCallList(this->fpsList);
glFlush();
glXGetVideoSyncSGI(&this->gpuFrameCount);
SDL_GL_SwapWindow(this->params.window);
unsigned int count;
glXGetVideoSyncSGI(&count);
while(count == this->gpuFrameCount)
{
unsigned int remainder;
glXWaitVideoSyncSGI(1, 0, &remainder);
glXGetVideoSyncSGI(&count);
glFinish();
}
++this->frameCount;
const uint64_t t = nanotime();
@ -688,8 +696,10 @@ bool lgr_opengl_render(void * opaque)
else
if (this->mouseUpdate)
{
glDrawBuffer(GL_FRONT);
lgr_opengl_draw_mouse(this);
glFlush();
glDrawBuffer(GL_BACK);
}