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wined3d: Cleanup IWineD3DBaseSwapChainImpl_GetBackBuffer() a bit.

This commit is contained in:
Henri Verbeet 2010-08-15 23:21:44 +02:00 committed by Alexandre Julliard
parent e1188b0c8e
commit 81603f18d8
1 changed files with 19 additions and 21 deletions
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40
dlls/wined3d/swapchain_base.c
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@ -90,36 +90,34 @@ HRESULT WINAPI IWineD3DBaseSwapChainImpl_GetFrontBufferData(IWineD3DSwapChain *i
return WINED3D_OK;
}
HRESULT WINAPI IWineD3DBaseSwapChainImpl_GetBackBuffer(IWineD3DSwapChain *iface, UINT iBackBuffer, WINED3DBACKBUFFER_TYPE Type, IWineD3DSurface **ppBackBuffer) {
HRESULT WINAPI IWineD3DBaseSwapChainImpl_GetBackBuffer(IWineD3DSwapChain *iface,
UINT back_buffer_idx, WINED3DBACKBUFFER_TYPE type, IWineD3DSurface **back_buffer)
{
IWineD3DSwapChainImpl *swapchain = (IWineD3DSwapChainImpl *)iface;
IWineD3DSwapChainImpl *This = (IWineD3DSwapChainImpl *)iface;
TRACE("iface %p, back_buffer_idx %u, type %#x, back_buffer %p.\n",
iface, back_buffer_idx, type, back_buffer);
if (iBackBuffer > This->presentParms.BackBufferCount - 1) {
TRACE("Back buffer count out of range\n");
/* Native d3d9 doesn't set NULL here, just as wine's d3d9. But set it
* here in wined3d to avoid problems in other libs
*/
*ppBackBuffer = NULL;
return WINED3DERR_INVALIDCALL;
}
/* Return invalid if there is no backbuffer array, otherwise it will crash when ddraw is
* used (there This->backBuffer is always NULL). We need this because this function has
* to be called from IWineD3DStateBlockImpl_InitStartupStateBlock to get the default
/* Return invalid if there is no backbuffer array, otherwise it will
* crash when ddraw is used (there swapchain->back_buffers is always NULL).
* We need this because this function is called from
* IWineD3DStateBlockImpl_InitStartupStateBlock() to get the default
* scissorrect dimensions. */
if (!This->back_buffers)
if (!swapchain->back_buffers || back_buffer_idx >= swapchain->presentParms.BackBufferCount)
{
*ppBackBuffer = NULL;
WARN("Invalid back buffer index.\n");
/* Native d3d9 doesn't set NULL here, just as wine's d3d9. But set it
* here in wined3d to avoid problems in other libs. */
*back_buffer = NULL;
return WINED3DERR_INVALIDCALL;
}
*ppBackBuffer = (IWineD3DSurface *)This->back_buffers[iBackBuffer];
TRACE("(%p) : BackBuf %d Type %d returning %p\n", This, iBackBuffer, Type, *ppBackBuffer);
*back_buffer = (IWineD3DSurface *)swapchain->back_buffers[back_buffer_idx];
if (*back_buffer) IWineD3DSurface_AddRef(*back_buffer);
TRACE("Returning back buffer %p.\n", *back_buffer);
/* Note inc ref on returned surface */
if(*ppBackBuffer) IWineD3DSurface_AddRef(*ppBackBuffer);
return WINED3D_OK;
}
HRESULT WINAPI IWineD3DBaseSwapChainImpl_GetRasterStatus(IWineD3DSwapChain *iface, WINED3DRASTER_STATUS *pRasterStatus) {