Signed-off-by: Nikolay Sivov nsivov@codeweavers.com ---
Scaling logic was taken entirely from VMR9.
dlls/evr/presenter.c | 51 +++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 50 insertions(+), 1 deletion(-)
diff --git a/dlls/evr/presenter.c b/dlls/evr/presenter.c index 5701eb17bd3..9b7fb5f6f67 100644 --- a/dlls/evr/presenter.c +++ b/dlls/evr/presenter.c @@ -426,10 +426,27 @@ static HRESULT video_presenter_get_sample_surface(IMFSample *sample, IDirect3DSu return hr; }
+static void scale_rect(RECT *rect, unsigned int width, unsigned int height, const MFVideoNormalizedRect *scale) +{ + if (rect->left == 0.0f && rect->top == 0.0f && rect->right == 1.0f && rect->bottom == 1.0f) + { + SetRect(rect, 0, 0, width, height); + } + else + { + rect->left = width * scale->left; + rect->right = width * scale->right; + rect->top = height * scale->top; + rect->bottom = height * scale->bottom; + } +} + static void video_presenter_sample_present(struct video_presenter *presenter, IMFSample *sample) { IDirect3DSurface9 *surface, *backbuffer; IDirect3DDevice9 *device; + D3DSURFACE_DESC desc; + RECT dst, src; HRESULT hr;
if (!presenter->swapchain) @@ -450,7 +467,39 @@ static void video_presenter_sample_present(struct video_presenter *presenter, IM
IDirect3DSwapChain9_GetDevice(presenter->swapchain, &device); IDirect3DDevice9_StretchRect(device, surface, NULL, backbuffer, NULL, D3DTEXF_POINT); - IDirect3DSwapChain9_Present(presenter->swapchain, NULL, NULL, NULL, NULL, 0); + + IDirect3DSurface9_GetDesc(surface, &desc); + scale_rect(&src, desc.Width, desc.Height, &presenter->src_rect); + + IDirect3DSurface9_GetDesc(backbuffer, &desc); + SetRect(&dst, 0, 0, desc.Width, desc.Height); + + if (presenter->ar_mode & MFVideoARMode_PreservePicture) + { + unsigned int src_width = src.right - src.left, src_height = src.bottom - src.top; + unsigned int dst_width = dst.right - dst.left, dst_height = dst.bottom - dst.top; + + if (src_width * dst_height > dst_width * src_height) + { + /* src is "wider" than dst. */ + unsigned int dst_center = (dst.top + dst.bottom) / 2; + unsigned int scaled_height = src_height * dst_width / src_width; + + dst.top = dst_center - scaled_height / 2; + dst.bottom = dst.top + scaled_height; + } + else if (src_width * dst_height < dst_width * src_height) + { + /* src is "taller" than dst. */ + unsigned int dst_center = (dst.left + dst.right) / 2; + unsigned int scaled_width = src_width * dst_height / src_height; + + dst.left = dst_center - scaled_width / 2; + dst.right = dst.left + scaled_width; + } + } + + IDirect3DSwapChain9_Present(presenter->swapchain, &src, &dst, NULL, NULL, 0);
IDirect3DDevice9_Release(device); IDirect3DSurface9_Release(backbuffer);