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wined3d: Try doing a present in wined3d_surface_blt() instead of IWineD3DSurfaceImpl_BltOverride().

This commit is contained in:
Henri Verbeet 2011-09-05 21:15:52 +02:00 committed by Alexandre Julliard
parent b86d69de16
commit 1b9bc1a950
1 changed files with 24 additions and 50 deletions
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74
dlls/wined3d/surface.c
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@ -1462,7 +1462,7 @@ HRESULT CDECL wined3d_surface_blt(struct wined3d_surface *dst_surface, const REC
struct wined3d_surface *src_surface, const RECT *src_rect_in, DWORD flags,
const WINEDDBLTFX *fx, WINED3DTEXTUREFILTERTYPE filter)
{
const struct wined3d_swapchain *src_swapchain, *dst_swapchain;
struct wined3d_swapchain *src_swapchain, *dst_swapchain;
struct wined3d_device *device = dst_surface->resource.device;
DWORD src_ds_flags, dst_ds_flags;
RECT src_rect, dst_rect;
@ -1661,6 +1661,29 @@ HRESULT CDECL wined3d_surface_blt(struct wined3d_surface *dst_surface, const REC
{
TRACE("Color blit.\n");
/* Use present for back -> front blits. The idea behind this is
* that present is potentially faster than a blit, in particular
* when FBO blits aren't available. Some ddraw applications like
* Half-Life and Prince of Persia 3D use Blt() from the backbuffer
* to the frontbuffer instead of doing a Flip(). D3D8 and D3D9
* applications can't blit directly to the frontbuffer. */
if (dst_swapchain && dst_swapchain->back_buffers
&& dst_surface == dst_swapchain->front_buffer
&& src_surface == dst_swapchain->back_buffers[0])
{
WINED3DSWAPEFFECT swap_effect = dst_swapchain->presentParms.SwapEffect;
TRACE("Using present for backbuffer -> frontbuffer blit.\n");
/* Set the swap effect to COPY, we don't want the backbuffer
* to become undefined. */
dst_swapchain->presentParms.SwapEffect = WINED3DSWAPEFFECT_COPY;
wined3d_swapchain_present(dst_swapchain, NULL, NULL, dst_swapchain->win_handle, NULL, 0);
dst_swapchain->presentParms.SwapEffect = swap_effect;
return WINED3D_OK;
}
if (fbo_blit_supported(&device->adapter->gl_info, WINED3D_BLIT_OP_COLOR_BLIT,
&src_rect, src_surface->resource.usage, src_surface->resource.pool, src_surface->resource.format,
&dst_rect, dst_surface->resource.usage, dst_surface->resource.pool, dst_surface->resource.format))
@ -5312,55 +5335,6 @@ static HRESULT IWineD3DSurfaceImpl_BltOverride(struct wined3d_surface *dst_surfa
return WINED3DERR_INVALIDCALL;
}
/* The only case where both surfaces on a swapchain are supported is a
* back buffer -> front buffer blit on the same swapchain. */
if (dstSwapchain && dstSwapchain->back_buffers
&& dst_surface == dstSwapchain->front_buffer
&& src_surface == dstSwapchain->back_buffers[0])
{
/* Half-Life does a Blt from the back buffer to the front buffer,
* Full surface size, no flags... Use present instead
*
* This path will only be entered for d3d7 and ddraw apps, because
* d3d8/9 offer no way to blit to the front buffer. */
for (;;)
{
/* These flags are unimportant for the flag check, remove them */
if (!(flags & ~(WINEDDBLT_DONOTWAIT | WINEDDBLT_WAIT)))
{
WINED3DSWAPEFFECT orig_swap = dstSwapchain->presentParms.SwapEffect;
/* The idea behind this is that a glReadPixels and a glDrawPixels call
* take very long, while a flip is fast.
* This applies to Half-Life, which does such Blts every time it finished
* a frame, and to Prince of Persia 3D, which uses this to draw at least the main
* menu. This is also used by all apps when they do windowed rendering
*
* The problem is that flipping is not really the same as copying. After a
* Blt the front buffer is a copy of the back buffer, and the back buffer is
* untouched. Therefore it's necessary to override the swap effect
* and to set it back after the flip.
*
* Windowed Direct3D < 7 apps do the same. The D3D7 sdk demos are nice
* testcases.
*/
dstSwapchain->presentParms.SwapEffect = WINED3DSWAPEFFECT_COPY;
TRACE("Full screen back buffer -> front buffer blt, performing a flip instead.\n");
wined3d_swapchain_present(dstSwapchain, NULL, NULL, dstSwapchain->win_handle, NULL, 0);
dstSwapchain->presentParms.SwapEffect = orig_swap;
return WINED3D_OK;
}
break;
}
TRACE("Unsupported blit between buffers on the same swapchain\n");
return WINED3DERR_INVALIDCALL;
}
if (dstSwapchain && dstSwapchain == srcSwapchain)
{
FIXME("Implement hardware blit between two surfaces on the same swapchain\n");