wined3d: Make sure all contexts are finished drawing before calling SwapBuffers().

This causes a small performance hit when multiple GL contexts are used. As an optimization we could use ARB_sync to only wait for the last draw call instead of all GL commands.

wined3d: Make sure all contexts are finished drawing before calling SwapBuffers().
daf0aeb3 · Henri Verbeet · Alexandre Julliard · ce424701 · daf0aeb3
Commit daf0aeb3 authored Jan 27, 2010 by Henri Verbeet Committed by Alexandre Julliard Jan 28, 2010
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swapchain.c dlls/wined3d/swapchain.c +1 -0

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--- a/dlls/wined3d/swapchain.c
+++ b/dlls/wined3d/swapchain.c
@@ -343,6 +343,7 @@ static HRESULT WINAPI IWineD3DSwapChainImpl_Present(IWineD3DSwapChain *iface, CO
        swapchain_blit(This, context, &src_rect, &dst_rect);
    }

+    if (This->num_contexts > 1) wglFinish();
    SwapBuffers(This->context[0]->hdc); /* TODO: cycle through the swapchain buffers */

    TRACE("SwapBuffers called, Starting new frame\n");