vlc/vlc-3.0 | branch: master | Steve Lhomme <rob...@ycbcr.xyz> | Thu Feb 8 09:38:56 2018 +0100| [d739edee241f690c0c8b90f3f400932ff7a2a20c] | committer: Jean-Baptiste Kempf
direct3d11: simplify the math to compute the quad corners position This is only valid for left aligned textures (ie not rotated) (cherry picked from commit 9a736c2175ecfffda68a7f9535968c774cd767b2) Signed-off-by: Jean-Baptiste Kempf <j...@videolan.org> > http://git.videolan.org/gitweb.cgi/vlc/vlc-3.0.git/?a=commit;h=d739edee241f690c0c8b90f3f400932ff7a2a20c --- modules/video_output/win32/direct3d11.c | 14 ++++++-------- 1 file changed, 6 insertions(+), 8 deletions(-) diff --git a/modules/video_output/win32/direct3d11.c b/modules/video_output/win32/direct3d11.c index 949419fcfe..137205eeca 100644 --- a/modules/video_output/win32/direct3d11.c +++ b/modules/video_output/win32/direct3d11.c @@ -2298,18 +2298,16 @@ static void SetupQuadFlat(d3d_vertex_t *dst_data, const RECT *output, const d3d_quad_t *quad, WORD *triangle_pos, video_orientation_t orientation) { - unsigned int dst_x = output->left; - unsigned int dst_y = output->top; unsigned int src_width = quad->i_width; unsigned int src_height = quad->i_height; - LONG MidY = output->top + output->bottom; // /2 - LONG MidX = output->left + output->right; // /2 + float MidY = (output->top + output->bottom) / 2.f; + float MidX = (output->left + output->right) / 2.f; float top, bottom, left, right; - top = (float)MidY / (float)(MidY - 2*dst_y); - bottom = -(2.f*src_height - MidY) / (float)(MidY - 2*dst_y); - right = (2.f*src_width - MidX) / (float)(MidX - 2*dst_x); - left = -(float)MidX / (float)(MidX - 2*dst_x); + top = MidY / (MidY - output->top); + bottom = -(src_height - MidY) / (output->bottom - MidY); + left = -MidX / (MidX - output->left); + right = (src_width - MidX) / (output->right - MidX); const float vertices_coords[4][2] = { { left, bottom }, _______________________________________________ vlc-commits mailing list vlc-commits@videolan.org https://mailman.videolan.org/listinfo/vlc-commits
