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| author | Paul B Mahol <onemda@gmail.com> | 2021-09-27 19:10:17 +0200 |
|---|---|---|
| committer | Paul B Mahol <onemda@gmail.com> | 2021-09-27 19:12:48 +0200 |
| commit | d7408a786f350d4cd9a338821a4c63a0642eb000 (patch) | |
| tree | 0285d89037b58c3f28facc5206ad39aaf6f187a4 | |
| parent | b786bc7433dfe082441a57c1ba9ae9ea47904b78 (diff) | |
| download | ffmpeg-d7408a786f350d4cd9a338821a4c63a0642eb000.tar.gz | |
avfilter/vf_blend: refactor similar code
| -rw-r--r-- | libavfilter/vf_blend.c | 93 |
1 files changed, 27 insertions, 66 deletions
diff --git a/libavfilter/vf_blend.c b/libavfilter/vf_blend.c index ff06940a66..db315fa86f 100644 --- a/libavfilter/vf_blend.c +++ b/libavfilter/vf_blend.c @@ -142,74 +142,35 @@ COPY(bottom, 32) #undef COPY -static void blend_normal_8bit(const uint8_t *top, ptrdiff_t top_linesize, - const uint8_t *bottom, ptrdiff_t bottom_linesize, - uint8_t *dst, ptrdiff_t dst_linesize, - ptrdiff_t width, ptrdiff_t height, - FilterParams *param, double *values, int starty) -{ - const float opacity = param->opacity; - int i, j; - - for (i = 0; i < height; i++) { - for (j = 0; j < width; j++) { - dst[j] = top[j] * opacity + bottom[j] * (1.f - opacity); - } - dst += dst_linesize; - top += top_linesize; - bottom += bottom_linesize; - } +#define BLEND_NORMAL(name, type) \ +static void blend_normal_##name(const uint8_t *_top, ptrdiff_t top_linesize, \ + const uint8_t *_bottom, ptrdiff_t bottom_linesize,\ + uint8_t *_dst, ptrdiff_t dst_linesize, \ + ptrdiff_t width, ptrdiff_t height, \ + FilterParams *param, double *values, int starty) \ +{ \ + const type *top = (type*)_top; \ + const type *bottom = (type*)_bottom; \ + type *dst = (type*)_dst; \ + const float opacity = param->opacity; \ + \ + dst_linesize /= sizeof(type); \ + top_linesize /= sizeof(type); \ + bottom_linesize /= sizeof(type); \ + \ + for (int i = 0; i < height; i++) { \ + for (int j = 0; j < width; j++) { \ + dst[j] = top[j] * opacity + bottom[j] * (1.f - opacity); \ + } \ + dst += dst_linesize; \ + top += top_linesize; \ + bottom += bottom_linesize; \ + } \ } -static void blend_normal_16bit(const uint8_t *_top, ptrdiff_t top_linesize, - const uint8_t *_bottom, ptrdiff_t bottom_linesize, - uint8_t *_dst, ptrdiff_t dst_linesize, - ptrdiff_t width, ptrdiff_t height, - FilterParams *param, double *values, int starty) -{ - const uint16_t *top = (uint16_t*)_top; - const uint16_t *bottom = (uint16_t*)_bottom; - uint16_t *dst = (uint16_t*)_dst; - const float opacity = param->opacity; - int i, j; - dst_linesize /= 2; - top_linesize /= 2; - bottom_linesize /= 2; - - for (i = 0; i < height; i++) { - for (j = 0; j < width; j++) { - dst[j] = top[j] * opacity + bottom[j] * (1.f - opacity); - } - dst += dst_linesize; - top += top_linesize; - bottom += bottom_linesize; - } -} - -static void blend_normal_32bit(const uint8_t *_top, ptrdiff_t top_linesize, - const uint8_t *_bottom, ptrdiff_t bottom_linesize, - uint8_t *_dst, ptrdiff_t dst_linesize, - ptrdiff_t width, ptrdiff_t height, - FilterParams *param, double *values, int starty) -{ - const float *top = (float*)_top; - const float *bottom = (float*)_bottom; - float *dst = (float*)_dst; - const float opacity = param->opacity; - int i, j; - dst_linesize /= 4; - top_linesize /= 4; - bottom_linesize /= 4; - - for (i = 0; i < height; i++) { - for (j = 0; j < width; j++) { - dst[j] = top[j] * opacity + bottom[j] * (1.f - opacity); - } - dst += dst_linesize; - top += top_linesize; - bottom += bottom_linesize; - } -} +BLEND_NORMAL(8bit, uint8_t) +BLEND_NORMAL(16bit, uint16_t) +BLEND_NORMAL(32bit, float) #define DEFINE_BLEND8(name, expr) \ static void blend_## name##_8bit(const uint8_t *top, ptrdiff_t top_linesize, \ |