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video/mp_image: handle non-power-of-two alignment

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Needed for odd formats like rgb24.
This commit is contained in:
Niklas Haas 2023-10-19 17:52:14 +02:00 committed by Niklas Haas
parent d67b0022aa
commit 50cd363c01
2 changed files with 5 additions and 1 deletions
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4
common/common.h
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@ -39,6 +39,7 @@
#define MPSWAP(type, a, b) \
do { type SWAP_tmp = b; b = a; a = SWAP_tmp; } while (0)
#define MP_ARRAY_SIZE(s) (sizeof(s) / sizeof((s)[0]))
#define MP_DIV_UP(x, y) (((x) + (y) - 1) / (y))
// align must be a power of two (align >= 1), x >= 0
#define MP_ALIGN_UP(x, align) (((x) + (align) - 1) & ~((align) - 1))
@ -46,6 +47,9 @@
#define MP_IS_ALIGNED(x, align) (!((x) & ((align) - 1)))
#define MP_IS_POWER_OF_2(x) ((x) > 0 && !((x) & ((x) - 1)))
// align to non power of two
#define MP_ALIGN_NPOT(x, align) ((align) ? MP_DIV_UP(x, align) * (align) : (x))
// Return "a", or if that is NOPTS, return "def".
#define MP_PTS_OR_DEF(a, def) ((a) == MP_NOPTS_VALUE ? (def) : (a))
// If one of the values is NOPTS, always pick the other one.

2
video/mp_image.c
View File

@ -69,7 +69,7 @@ static int mp_image_layout(int imgfmt, int w, int h, int stride_align,
int alloc_w = mp_chroma_div_up(w, desc.xs[n]);
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);
out_stride[n] = MP_ALIGN_NPOT(line_bytes, stride_align);
out_plane_size[n] = out_stride[n] * alloc_h;
}
if (desc.flags & MP_IMGFLAG_PAL)