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Code Issues Releases Activity

sws/output: factor yuv2rgb_write_full() out

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Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer
2013-04-14 13:17:04 +02:00
parent f359be96ca
commit 662664551c
1 changed files with 98 additions and 86 deletions
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86
libswscale/output.c
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@@ -1217,45 +1217,13 @@ YUV2RGBWRAPPER(yuv2rgb,, 8, AV_PIX_FMT_RGB8, 0)
YUV2RGBWRAPPER(yuv2rgb,, 4, AV_PIX_FMT_RGB4, 0) YUV2RGBWRAPPER(yuv2rgb,, 4, AV_PIX_FMT_RGB4, 0)
YUV2RGBWRAPPER(yuv2rgb,, 4b, AV_PIX_FMT_RGB4_BYTE, 0) YUV2RGBWRAPPER(yuv2rgb,, 4b, AV_PIX_FMT_RGB4_BYTE, 0)
static av_always_inline void static av_always_inline void yuv2rgb_write_full(SwsContext *c,
yuv2rgb_full_X_c_template(SwsContext *c, const int16_t *lumFilter, uint8_t *dest, int i, int Y, int A, int U, int V,
const int16_t **lumSrc, int lumFilterSize, int y, enum AVPixelFormat target, int hasAlpha, int err[4])
const int16_t *chrFilter, const int16_t **chrUSrc,
const int16_t **chrVSrc, int chrFilterSize,
const int16_t **alpSrc, uint8_t *dest,
int dstW, int y, enum AVPixelFormat target, int hasAlpha)
{ {
int i; int R, G, B;
int step = (target == AV_PIX_FMT_RGB24 || target == AV_PIX_FMT_BGR24) ? 3 : 4;
int err[4] = {0};
int isrgb8 = target == AV_PIX_FMT_BGR8 || target == AV_PIX_FMT_RGB8; int isrgb8 = target == AV_PIX_FMT_BGR8 || target == AV_PIX_FMT_RGB8;
for (i = 0; i < dstW; i++) {
int j;
int Y = 1<<9;
int U = (1<<9)-(128 << 19);
int V = (1<<9)-(128 << 19);
int R, G, B, A;
for (j = 0; j < lumFilterSize; j++) {
Y += lumSrc[j][i] * lumFilter[j];
}
for (j = 0; j < chrFilterSize; j++) {
U += chrUSrc[j][i] * chrFilter[j];
V += chrVSrc[j][i] * chrFilter[j];
}
Y >>= 10;
U >>= 10;
V >>= 10;
if (hasAlpha) {
A = 1 << 18;
for (j = 0; j < lumFilterSize; j++) {
A += alpSrc[j][i] * lumFilter[j];
}
A >>= 19;
if (A & 0x100)
A = av_clip_uint8(A);
}
Y -= c->yuv2rgb_y_offset; Y -= c->yuv2rgb_y_offset;
Y *= c->yuv2rgb_y_coeff; Y *= c->yuv2rgb_y_coeff;
Y += 1 << 21; Y += 1 << 21;
@@ -1337,9 +1305,53 @@ yuv2rgb_full_X_c_template(SwsContext *c, const int16_t *lumFilter,
dest[0] = b + 4*g + 32*r; dest[0] = b + 4*g + 32*r;
} else } else
av_assert2(0); av_assert2(0);
step = 1;
break;} break;}
} }
}
static av_always_inline void
yuv2rgb_full_X_c_template(SwsContext *c, const int16_t *lumFilter,
const int16_t **lumSrc, int lumFilterSize,
const int16_t *chrFilter, const int16_t **chrUSrc,
const int16_t **chrVSrc, int chrFilterSize,
const int16_t **alpSrc, uint8_t *dest,
int dstW, int y, enum AVPixelFormat target, int hasAlpha)
{
int i;
int step = (target == AV_PIX_FMT_RGB24 || target == AV_PIX_FMT_BGR24) ? 3 : 4;
int err[4] = {0};
if( target == AV_PIX_FMT_BGR4_BYTE || target == AV_PIX_FMT_RGB4_BYTE
|| target == AV_PIX_FMT_BGR8 || target == AV_PIX_FMT_RGB8)
step = 1;
for (i = 0; i < dstW; i++) {
int j;
int Y = 1<<9;
int U = (1<<9)-(128 << 19);
int V = (1<<9)-(128 << 19);
int A;
for (j = 0; j < lumFilterSize; j++) {
Y += lumSrc[j][i] * lumFilter[j];
}
for (j = 0; j < chrFilterSize; j++) {
U += chrUSrc[j][i] * chrFilter[j];
V += chrVSrc[j][i] * chrFilter[j];
}
Y >>= 10;
U >>= 10;
V >>= 10;
if (hasAlpha) {
A = 1 << 18;
for (j = 0; j < lumFilterSize; j++) {
A += alpSrc[j][i] * lumFilter[j];
}
A >>= 19;
if (A & 0x100)
A = av_clip_uint8(A);
}
yuv2rgb_write_full(c, dest, i, Y, A, U, V, y, target, hasAlpha, err);
dest += step; dest += step;
} }
c->dither_error[0][i] = err[0]; c->dither_error[0][i] = err[0];