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ddraw: Create swapchains with back-buffers. 

As preparation for the next patch. Note that we drop WINED3DUSAGE_RENDERTARGET
here. We never render directly to the back-buffer in ddraw, since ddraw
back-buffers don't directly correspond to wined3d back-buffers. Moreover,
ddraw may create WINED3DFMT_P8_UINT swapchains, for which
WINED3DUSAGE_RENDERTARGET wouldn't be valid.

Signed-off-by: Henri Verbeet <hverbeet@codeweavers.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Henri Verbeet 2018-03-27 15:36:51 +04:30 committed by Alexandre Julliard
parent 1567329f91
commit 23713ee2a8
1 changed files with 11 additions and 9 deletions
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20
dlls/ddraw/ddraw.c
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@ -629,8 +629,9 @@ static HRESULT ddraw_create_swapchain(struct ddraw *ddraw, HWND window, BOOL win
swapchain_desc.backbuffer_width = mode.width;
swapchain_desc.backbuffer_height = mode.height;
swapchain_desc.backbuffer_format = mode.format_id;
swapchain_desc.backbuffer_usage = WINED3DUSAGE_RENDERTARGET;
swapchain_desc.swap_effect = WINED3D_SWAP_EFFECT_COPY;
swapchain_desc.backbuffer_usage = 0;
swapchain_desc.backbuffer_count = 1;
swapchain_desc.swap_effect = WINED3D_SWAP_EFFECT_DISCARD;
swapchain_desc.device_window = window;
swapchain_desc.windowed = windowed;
swapchain_desc.flags = WINED3D_SWAPCHAIN_ALLOW_MODE_SWITCH;
@ -4853,25 +4854,26 @@ static HRESULT CDECL device_parent_create_swapchain_texture(struct wined3d_devic
struct wined3d_texture **texture)
{
struct ddraw *ddraw = ddraw_from_device_parent(device_parent);
const struct wined3d_parent_ops *parent_ops;
HRESULT hr;
TRACE("device_parent %p, container_parent %p, desc %p, texture flags %#x, texture %p.\n",
device_parent, container_parent, desc, texture_flags, texture);
if (ddraw->wined3d_frontbuffer)
{
ERR("Frontbuffer already created.\n");
return E_FAIL;
}
if (!ddraw->wined3d_frontbuffer)
parent_ops = &ddraw_frontbuffer_parent_ops;
else
parent_ops = &ddraw_null_wined3d_parent_ops;
if (FAILED(hr = wined3d_texture_create(ddraw->wined3d_device, desc, 1, 1,
texture_flags | WINED3D_TEXTURE_CREATE_MAPPABLE, NULL, ddraw, &ddraw_frontbuffer_parent_ops, texture)))
texture_flags | WINED3D_TEXTURE_CREATE_MAPPABLE, NULL, ddraw, parent_ops, texture)))
{
WARN("Failed to create texture, hr %#x.\n", hr);
return hr;
}
ddraw->wined3d_frontbuffer = *texture;
if (!ddraw->wined3d_frontbuffer)
ddraw->wined3d_frontbuffer = *texture;
return hr;
}