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libobs-opengl: Disable v-sync when drawing on linux

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Prevents glXSwapBuffers from stalling.  It would have to stall and wait
for the next frame for each and every single additional swap chain.
This commit is contained in:
jp9000 2016-01-25 10:43:53 -08:00
parent aa48c6e9bc
commit 9cded466dc
1 changed files with 28 additions and 0 deletions
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28
libobs-opengl/gl-x11.c
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@ -561,12 +561,40 @@ extern void device_load_swapchain(gs_device_t *device, gs_swapchain_t *swap)
}
}
enum swap_type {
SWAP_TYPE_NORMAL,
SWAP_TYPE_EXT,
SWAP_TYPE_MESA,
SWAP_TYPE_SGI,
};
extern void device_present(gs_device_t *device)
{
static bool initialized = false;
static enum swap_type swap_type = SWAP_TYPE_NORMAL;
Display *display = device->plat->display;
XID window = device->cur_swap->wi->window;
if (!initialized) {
if (GLAD_GLX_EXT_swap_control)
swap_type = SWAP_TYPE_EXT;
else if (GLAD_GLX_MESA_swap_control)
swap_type = SWAP_TYPE_MESA;
else if (GLAD_GLX_SGI_swap_control)
swap_type = SWAP_TYPE_SGI;
initialized = true;
}
/* TODO: Handle XCB events. */
switch (swap_type) {
case SWAP_TYPE_EXT: glXSwapIntervalEXT(display, window, 0); break;
case SWAP_TYPE_MESA: glXSwapIntervalMESA(0); break;
case SWAP_TYPE_SGI: glXSwapIntervalSGI(0); break;
case SWAP_TYPE_NORMAL:;
}
glXSwapBuffers(display, window);
}