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author | Niklas Haas <git@haasn.xyz> | 2018-11-18 05:47:43 +0100 |
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committer | Jan Ekström <jeebjp@gmail.com> | 2019-04-21 23:55:22 +0300 |
commit | 9f7dcc0726ab635fb34fb7310e54b1aec9467f14 (patch) | |
tree | 101680ce8c4e729f6eba6bc67db3e5f33a12c160 | |
parent | a3c808c6c8db685b492bd61fe4af01cb42ceaf18 (diff) | |
download | mpv-9f7dcc0726ab635fb34fb7310e54b1aec9467f14.tar.bz2 mpv-9f7dcc0726ab635fb34fb7310e54b1aec9467f14.tar.xz |
mp_image: align stride to multiple of texel size
This helps with compatibility and/or performance in particular for
oddly-sized formats like rgb24. We use a loop to avoid having to
calculate the lcm (or waste bytes in the extremely common case of the
byte size and the stride align having shared factors).
-rw-r--r-- | video/mp_image.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/video/mp_image.c b/video/mp_image.c index 92c3e57b95..b5780b08a0 100644 --- a/video/mp_image.c +++ b/video/mp_image.c @@ -72,6 +72,9 @@ static int mp_image_layout(int imgfmt, int w, int h, int stride_align, int alloc_h = MP_ALIGN_UP(h, 32) >> desc.ys[n]; int line_bytes = (alloc_w * desc.bpp[n] + 7) / 8; out_stride[n] = MP_ALIGN_UP(line_bytes, stride_align); + // also align to a multiple of desc.bytes[n] + while (desc.bytes[n] && out_stride[n] % desc.bytes[n]) + out_stride[n] += stride_align; out_plane_size[n] = out_stride[n] * alloc_h; } if (desc.flags & MP_IMGFLAG_PAL) |