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winsys/d3d12: Support no-alpha formats through the DXGI swapchain path

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Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/35142>
This commit is contained in:
Jesse Natalie 2025-05-23 16:55:26 -07:00 • committed by Marge Bot
parent 548f652d10
commit f5781553f6
1 changed files with 13 additions and 1 deletions
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14
src/gallium/winsys/d3d12/wgl/d3d12_wgl_framebuffer.cpp
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@ -113,12 +113,22 @@ d3d12_wgl_framebuffer_resize(stw_winsys_framebuffer *fb,
desc.BufferUsage = DXGI_USAGE_RENDER_TARGET_OUTPUT | DXGI_USAGE_SHADER_INPUT;
desc.Flags = DXGI_SWAP_CHAIN_FLAG_ALLOW_TEARING | DXGI_SWAP_CHAIN_FLAG_FRAME_LATENCY_WAITABLE_OBJECT;
desc.Format = d3d12_get_format(templ->format);
if (desc.Format == DXGI_FORMAT_B8G8R8X8_UNORM)
desc.Format = DXGI_FORMAT_B8G8R8A8_UNORM;
desc.Width = templ->width0;
desc.Height = templ->height0;
desc.SampleDesc.Count = 1;
desc.SwapEffect = DXGI_SWAP_EFFECT_FLIP_SEQUENTIAL;
framebuffer->pformat = templ->format;
switch (templ->format) {
case PIPE_FORMAT_B8G8R8X8_UNORM:
framebuffer->pformat = PIPE_FORMAT_B8G8R8A8_UNORM;
break;
case PIPE_FORMAT_R8G8B8X8_UNORM:
framebuffer->pformat = PIPE_FORMAT_R8G8B8A8_UNORM;
break;
}
if (!framebuffer->swapchain) {
ComPtr<IDXGISwapChain1> swapchain1;
@ -310,7 +320,9 @@ d3d12_wgl_create_framebuffer(struct pipe_screen *screen,
if (pfi->stvis.color_format != PIPE_FORMAT_B8G8R8A8_UNORM &&
pfi->stvis.color_format != PIPE_FORMAT_R8G8B8A8_UNORM &&
pfi->stvis.color_format != PIPE_FORMAT_R10G10B10A2_UNORM &&
pfi->stvis.color_format != PIPE_FORMAT_R16G16B16A16_FLOAT)
pfi->stvis.color_format != PIPE_FORMAT_R16G16B16A16_FLOAT &&
pfi->stvis.color_format != PIPE_FORMAT_B8G8R8X8_UNORM &&
pfi->stvis.color_format != PIPE_FORMAT_R8G8B8X8_UNORM)
return NULL;
struct d3d12_wgl_framebuffer *fb = CALLOC_STRUCT(d3d12_wgl_framebuffer);