wined3d: Discard the backbuffer in swapchain_gl_present() with the "discard" swap effect.

Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com> Signed-off-by: Alexandre Julliard <julliard@winehq.org>

wined3d: Discard the backbuffer in swapchain_gl_present() with the "discard" swap effect.
aa475ce2 · Stefan Dösinger · Alexandre Julliard · 3a727165 · aa475ce2
Commit aa475ce2 authored May 17, 2016 by Stefan Dösinger Committed by Alexandre Julliard May 18, 2016
Hide whitespace changes
Inline Side-by-side

Showing with 3 additions and 0 deletions

swapchain.c dlls/wined3d/swapchain.c +3 -0

No files found.
--- a/dlls/wined3d/swapchain.c
+++ b/dlls/wined3d/swapchain.c
@@ -606,6 +606,9 @@ static void swapchain_gl_present(struct wined3d_swapchain *swapchain,
     * The FLIP swap effect is not implemented yet. We could mark WINED3D_LOCATION_DRAWABLE
     * up to date and hope WGL flipped front and back buffers and read this data into
     * the FBO. Don't bother about this for now. */
+    if (swapchain->desc.swap_effect == WINED3D_SWAP_EFFECT_DISCARD)
+        wined3d_texture_validate_location(swapchain->back_buffers[swapchain->desc.backbuffer_count - 1],
+                0, WINED3D_LOCATION_DISCARDED);

    if (fb->depth_stencil)
    {