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; } c->dither_error[0][i] = err[0]; c->dither_error[1][i] = err[1]; c->dither_error[2][i] = err[2]; }