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Code Issues Releases Activity

vp8: fix bilinear C code to work if src_stride != dst_stride.

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Signed-off-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: Janne Grunau <janne-libav@jannau.net>
This commit is contained in:
Ronald S. Bultje 2014-02-05 07:59:45 +00:00 committed by Janne Grunau
parent 49ec551595
commit 5351964a2b
1 changed files with 10 additions and 10 deletions
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20
libavcodec/vp8dsp.c
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@ -415,7 +415,7 @@ VP8_EPEL_HV(8, 6, 6)
VP8_EPEL_HV(4, 6, 6)
#define VP8_BILINEAR(SIZE) \
static void put_vp8_bilinear ## SIZE ## _h_c(uint8_t *dst, ptrdiff_t stride, uint8_t *src, ptrdiff_t s2, int h, int mx, int my) \
static void put_vp8_bilinear ## SIZE ## _h_c(uint8_t *dst, ptrdiff_t dstride, uint8_t *src, ptrdiff_t sstride, int h, int mx, int my) \
{ \
int a = 8-mx, b = mx; \
int x, y; \
@ -423,24 +423,24 @@ static void put_vp8_bilinear ## SIZE ## _h_c(uint8_t *dst, ptrdiff_t stride, uin
for (y = 0; y < h; y++) { \
for (x = 0; x < SIZE; x++) \
dst[x] = (a*src[x] + b*src[x+1] + 4) >> 3; \
dst += stride; \
src += stride; \
dst += dstride; \
src += sstride; \
} \
} \
static void put_vp8_bilinear ## SIZE ## _v_c(uint8_t *dst, ptrdiff_t stride, uint8_t *src, ptrdiff_t s2, int h, int mx, int my) \
static void put_vp8_bilinear ## SIZE ## _v_c(uint8_t *dst, ptrdiff_t dstride, uint8_t *src, ptrdiff_t sstride, int h, int mx, int my) \
{ \
int c = 8-my, d = my; \
int x, y; \
\
for (y = 0; y < h; y++) { \
for (x = 0; x < SIZE; x++) \
dst[x] = (c*src[x] + d*src[x+stride] + 4) >> 3; \
dst += stride; \
src += stride; \
dst[x] = (c*src[x] + d*src[x+sstride] + 4) >> 3; \
dst += dstride; \
src += sstride; \
} \
} \
\
static void put_vp8_bilinear ## SIZE ## _hv_c(uint8_t *dst, ptrdiff_t stride, uint8_t *src, ptrdiff_t s2, int h, int mx, int my) \
static void put_vp8_bilinear ## SIZE ## _hv_c(uint8_t *dst, ptrdiff_t dstride, uint8_t *src, ptrdiff_t sstride, int h, int mx, int my) \
{ \
int a = 8-mx, b = mx; \
int c = 8-my, d = my; \
@ -452,7 +452,7 @@ static void put_vp8_bilinear ## SIZE ## _hv_c(uint8_t *dst, ptrdiff_t stride, ui
for (x = 0; x < SIZE; x++) \
tmp[x] = (a*src[x] + b*src[x+1] + 4) >> 3; \
tmp += SIZE; \
src += stride; \
src += sstride; \
} \
\
tmp = tmp_array; \
@ -460,7 +460,7 @@ static void put_vp8_bilinear ## SIZE ## _hv_c(uint8_t *dst, ptrdiff_t stride, ui
for (y = 0; y < h; y++) { \
for (x = 0; x < SIZE; x++) \
dst[x] = (c*tmp[x] + d*tmp[x+SIZE] + 4) >> 3; \
dst += stride; \
dst += dstride; \
tmp += SIZE; \
} \
}