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Diffstat (limited to 'ffmpeg/libswscale/yuv2rgb.c')
-rw-r--r--ffmpeg/libswscale/yuv2rgb.c927
1 files changed, 927 insertions, 0 deletions
diff --git a/ffmpeg/libswscale/yuv2rgb.c b/ffmpeg/libswscale/yuv2rgb.c
new file mode 100644
index 0000000..d12abda
--- /dev/null
+++ b/ffmpeg/libswscale/yuv2rgb.c
@@ -0,0 +1,927 @@
+/*
+ * software YUV to RGB converter
+ *
+ * Copyright (C) 2009 Konstantin Shishkov
+ *
+ * 1,4,8bpp support and context / deglobalize stuff
+ * by Michael Niedermayer (michaelni@gmx.at)
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <inttypes.h>
+
+#include "libavutil/cpu.h"
+#include "libavutil/bswap.h"
+#include "config.h"
+#include "rgb2rgb.h"
+#include "swscale.h"
+#include "swscale_internal.h"
+#include "libavutil/pixdesc.h"
+
+extern const uint8_t dither_2x2_4[3][8];
+extern const uint8_t dither_2x2_8[3][8];
+extern const uint8_t dither_4x4_16[5][8];
+extern const uint8_t dither_8x8_32[9][8];
+extern const uint8_t dither_8x8_73[9][8];
+extern const uint8_t dither_8x8_220[9][8];
+
+const int32_t ff_yuv2rgb_coeffs[8][4] = {
+ { 117504, 138453, 13954, 34903 }, /* no sequence_display_extension */
+ { 117504, 138453, 13954, 34903 }, /* ITU-R Rec. 709 (1990) */
+ { 104597, 132201, 25675, 53279 }, /* unspecified */
+ { 104597, 132201, 25675, 53279 }, /* reserved */
+ { 104448, 132798, 24759, 53109 }, /* FCC */
+ { 104597, 132201, 25675, 53279 }, /* ITU-R Rec. 624-4 System B, G */
+ { 104597, 132201, 25675, 53279 }, /* SMPTE 170M */
+ { 117579, 136230, 16907, 35559 } /* SMPTE 240M (1987) */
+};
+
+const int *sws_getCoefficients(int colorspace)
+{
+ if (colorspace > 7 || colorspace < 0)
+ colorspace = SWS_CS_DEFAULT;
+ return ff_yuv2rgb_coeffs[colorspace];
+}
+
+#define LOADCHROMA(i) \
+ U = pu[i]; \
+ V = pv[i]; \
+ r = (void *)c->table_rV[V+YUVRGB_TABLE_HEADROOM]; \
+ g = (void *)(c->table_gU[U+YUVRGB_TABLE_HEADROOM] + c->table_gV[V+YUVRGB_TABLE_HEADROOM]); \
+ b = (void *)c->table_bU[U+YUVRGB_TABLE_HEADROOM];
+
+#define PUTRGB(dst, src, i) \
+ Y = src[2 * i]; \
+ dst[2 * i] = r[Y] + g[Y] + b[Y]; \
+ Y = src[2 * i + 1]; \
+ dst[2 * i + 1] = r[Y] + g[Y] + b[Y];
+
+#define PUTRGB24(dst, src, i) \
+ Y = src[2 * i]; \
+ dst[6 * i + 0] = r[Y]; \
+ dst[6 * i + 1] = g[Y]; \
+ dst[6 * i + 2] = b[Y]; \
+ Y = src[2 * i + 1]; \
+ dst[6 * i + 3] = r[Y]; \
+ dst[6 * i + 4] = g[Y]; \
+ dst[6 * i + 5] = b[Y];
+
+#define PUTBGR24(dst, src, i) \
+ Y = src[2 * i]; \
+ dst[6 * i + 0] = b[Y]; \
+ dst[6 * i + 1] = g[Y]; \
+ dst[6 * i + 2] = r[Y]; \
+ Y = src[2 * i + 1]; \
+ dst[6 * i + 3] = b[Y]; \
+ dst[6 * i + 4] = g[Y]; \
+ dst[6 * i + 5] = r[Y];
+
+#define PUTRGBA(dst, ysrc, asrc, i, s) \
+ Y = ysrc[2 * i]; \
+ dst[2 * i] = r[Y] + g[Y] + b[Y] + (asrc[2 * i] << s); \
+ Y = ysrc[2 * i + 1]; \
+ dst[2 * i + 1] = r[Y] + g[Y] + b[Y] + (asrc[2 * i + 1] << s);
+
+#define PUTRGB48(dst, src, i) \
+ Y = src[ 2 * i]; \
+ dst[12 * i + 0] = dst[12 * i + 1] = r[Y]; \
+ dst[12 * i + 2] = dst[12 * i + 3] = g[Y]; \
+ dst[12 * i + 4] = dst[12 * i + 5] = b[Y]; \
+ Y = src[ 2 * i + 1]; \
+ dst[12 * i + 6] = dst[12 * i + 7] = r[Y]; \
+ dst[12 * i + 8] = dst[12 * i + 9] = g[Y]; \
+ dst[12 * i + 10] = dst[12 * i + 11] = b[Y];
+
+#define PUTBGR48(dst, src, i) \
+ Y = src[2 * i]; \
+ dst[12 * i + 0] = dst[12 * i + 1] = b[Y]; \
+ dst[12 * i + 2] = dst[12 * i + 3] = g[Y]; \
+ dst[12 * i + 4] = dst[12 * i + 5] = r[Y]; \
+ Y = src[2 * i + 1]; \
+ dst[12 * i + 6] = dst[12 * i + 7] = b[Y]; \
+ dst[12 * i + 8] = dst[12 * i + 9] = g[Y]; \
+ dst[12 * i + 10] = dst[12 * i + 11] = r[Y];
+
+#define YUV2RGBFUNC(func_name, dst_type, alpha) \
+ static int func_name(SwsContext *c, const uint8_t *src[], \
+ int srcStride[], int srcSliceY, int srcSliceH, \
+ uint8_t *dst[], int dstStride[]) \
+ { \
+ int y; \
+ \
+ if (!alpha && c->srcFormat == AV_PIX_FMT_YUV422P) { \
+ srcStride[1] *= 2; \
+ srcStride[2] *= 2; \
+ } \
+ for (y = 0; y < srcSliceH; y += 2) { \
+ dst_type *dst_1 = \
+ (dst_type *)(dst[0] + (y + srcSliceY) * dstStride[0]); \
+ dst_type *dst_2 = \
+ (dst_type *)(dst[0] + (y + srcSliceY + 1) * dstStride[0]); \
+ dst_type av_unused *r, *g, *b; \
+ const uint8_t *py_1 = src[0] + y * srcStride[0]; \
+ const uint8_t *py_2 = py_1 + srcStride[0]; \
+ const uint8_t *pu = src[1] + (y >> 1) * srcStride[1]; \
+ const uint8_t *pv = src[2] + (y >> 1) * srcStride[2]; \
+ const uint8_t av_unused *pa_1, *pa_2; \
+ unsigned int h_size = c->dstW >> 3; \
+ if (alpha) { \
+ pa_1 = src[3] + y * srcStride[3]; \
+ pa_2 = pa_1 + srcStride[3]; \
+ } \
+ while (h_size--) { \
+ int av_unused U, V, Y; \
+
+#define ENDYUV2RGBLINE(dst_delta, ss) \
+ pu += 4 >> ss; \
+ pv += 4 >> ss; \
+ py_1 += 8 >> ss; \
+ py_2 += 8 >> ss; \
+ dst_1 += dst_delta >> ss; \
+ dst_2 += dst_delta >> ss; \
+ } \
+ if (c->dstW & (4 >> ss)) { \
+ int av_unused Y, U, V; \
+
+#define ENDYUV2RGBFUNC() \
+ } \
+ } \
+ return srcSliceH; \
+ }
+
+#define CLOSEYUV2RGBFUNC(dst_delta) \
+ ENDYUV2RGBLINE(dst_delta, 0) \
+ ENDYUV2RGBFUNC()
+
+YUV2RGBFUNC(yuv2rgb_c_48, uint8_t, 0)
+ LOADCHROMA(0);
+ PUTRGB48(dst_1, py_1, 0);
+ PUTRGB48(dst_2, py_2, 0);
+
+ LOADCHROMA(1);
+ PUTRGB48(dst_2, py_2, 1);
+ PUTRGB48(dst_1, py_1, 1);
+
+ LOADCHROMA(2);
+ PUTRGB48(dst_1, py_1, 2);
+ PUTRGB48(dst_2, py_2, 2);
+
+ LOADCHROMA(3);
+ PUTRGB48(dst_2, py_2, 3);
+ PUTRGB48(dst_1, py_1, 3);
+ENDYUV2RGBLINE(48, 0)
+ LOADCHROMA(0);
+ PUTRGB48(dst_1, py_1, 0);
+ PUTRGB48(dst_2, py_2, 0);
+
+ LOADCHROMA(1);
+ PUTRGB48(dst_2, py_2, 1);
+ PUTRGB48(dst_1, py_1, 1);
+ENDYUV2RGBLINE(48, 1)
+ LOADCHROMA(0);
+ PUTRGB48(dst_1, py_1, 0);
+ PUTRGB48(dst_2, py_2, 0);
+ENDYUV2RGBFUNC()
+
+YUV2RGBFUNC(yuv2rgb_c_bgr48, uint8_t, 0)
+ LOADCHROMA(0);
+ PUTBGR48(dst_1, py_1, 0);
+ PUTBGR48(dst_2, py_2, 0);
+
+ LOADCHROMA(1);
+ PUTBGR48(dst_2, py_2, 1);
+ PUTBGR48(dst_1, py_1, 1);
+
+ LOADCHROMA(2);
+ PUTBGR48(dst_1, py_1, 2);
+ PUTBGR48(dst_2, py_2, 2);
+
+ LOADCHROMA(3);
+ PUTBGR48(dst_2, py_2, 3);
+ PUTBGR48(dst_1, py_1, 3);
+ENDYUV2RGBLINE(48, 0)
+ LOADCHROMA(0);
+ PUTBGR48(dst_1, py_1, 0);
+ PUTBGR48(dst_2, py_2, 0);
+
+ LOADCHROMA(1);
+ PUTBGR48(dst_2, py_2, 1);
+ PUTBGR48(dst_1, py_1, 1);
+ENDYUV2RGBLINE(48, 1)
+ LOADCHROMA(0);
+ PUTBGR48(dst_1, py_1, 0);
+ PUTBGR48(dst_2, py_2, 0);
+ENDYUV2RGBFUNC()
+
+YUV2RGBFUNC(yuv2rgb_c_32, uint32_t, 0)
+ LOADCHROMA(0);
+ PUTRGB(dst_1, py_1, 0);
+ PUTRGB(dst_2, py_2, 0);
+
+ LOADCHROMA(1);
+ PUTRGB(dst_2, py_2, 1);
+ PUTRGB(dst_1, py_1, 1);
+
+ LOADCHROMA(2);
+ PUTRGB(dst_1, py_1, 2);
+ PUTRGB(dst_2, py_2, 2);
+
+ LOADCHROMA(3);
+ PUTRGB(dst_2, py_2, 3);
+ PUTRGB(dst_1, py_1, 3);
+ENDYUV2RGBLINE(8, 0)
+ LOADCHROMA(0);
+ PUTRGB(dst_1, py_1, 0);
+ PUTRGB(dst_2, py_2, 0);
+
+ LOADCHROMA(1);
+ PUTRGB(dst_2, py_2, 1);
+ PUTRGB(dst_1, py_1, 1);
+ENDYUV2RGBLINE(8, 1)
+ LOADCHROMA(0);
+ PUTRGB(dst_1, py_1, 0);
+ PUTRGB(dst_2, py_2, 0);
+ENDYUV2RGBFUNC()
+
+YUV2RGBFUNC(yuva2rgba_c, uint32_t, 1)
+ LOADCHROMA(0);
+ PUTRGBA(dst_1, py_1, pa_1, 0, 24);
+ PUTRGBA(dst_2, py_2, pa_2, 0, 24);
+
+ LOADCHROMA(1);
+ PUTRGBA(dst_2, py_2, pa_1, 1, 24);
+ PUTRGBA(dst_1, py_1, pa_2, 1, 24);
+
+ LOADCHROMA(2);
+ PUTRGBA(dst_1, py_1, pa_1, 2, 24);
+ PUTRGBA(dst_2, py_2, pa_2, 2, 24);
+
+ LOADCHROMA(3);
+ PUTRGBA(dst_2, py_2, pa_1, 3, 24);
+ PUTRGBA(dst_1, py_1, pa_2, 3, 24);
+ pa_1 += 8; \
+ pa_2 += 8; \
+ENDYUV2RGBLINE(8, 0)
+ LOADCHROMA(0);
+ PUTRGBA(dst_1, py_1, pa_1, 0, 24);
+ PUTRGBA(dst_2, py_2, pa_2, 0, 24);
+
+ LOADCHROMA(1);
+ PUTRGBA(dst_2, py_2, pa_1, 1, 24);
+ PUTRGBA(dst_1, py_1, pa_2, 1, 24);
+ pa_1 += 4; \
+ pa_2 += 4; \
+ENDYUV2RGBLINE(8, 1)
+ LOADCHROMA(0);
+ PUTRGBA(dst_1, py_1, pa_1, 0, 24);
+ PUTRGBA(dst_2, py_2, pa_2, 0, 24);
+ENDYUV2RGBFUNC()
+
+YUV2RGBFUNC(yuva2argb_c, uint32_t, 1)
+ LOADCHROMA(0);
+ PUTRGBA(dst_1, py_1, pa_1, 0, 0);
+ PUTRGBA(dst_2, py_2, pa_2, 0, 0);
+
+ LOADCHROMA(1);
+ PUTRGBA(dst_2, py_2, pa_2, 1, 0);
+ PUTRGBA(dst_1, py_1, pa_1, 1, 0);
+
+ LOADCHROMA(2);
+ PUTRGBA(dst_1, py_1, pa_1, 2, 0);
+ PUTRGBA(dst_2, py_2, pa_2, 2, 0);
+
+ LOADCHROMA(3);
+ PUTRGBA(dst_2, py_2, pa_2, 3, 0);
+ PUTRGBA(dst_1, py_1, pa_1, 3, 0);
+ pa_1 += 8; \
+ pa_2 += 8; \
+ENDYUV2RGBLINE(8, 0)
+ LOADCHROMA(0);
+ PUTRGBA(dst_1, py_1, pa_1, 0, 0);
+ PUTRGBA(dst_2, py_2, pa_2, 0, 0);
+
+ LOADCHROMA(1);
+ PUTRGBA(dst_2, py_2, pa_2, 1, 0);
+ PUTRGBA(dst_1, py_1, pa_1, 1, 0);
+ pa_1 += 4; \
+ pa_2 += 4; \
+ENDYUV2RGBLINE(8, 1)
+ LOADCHROMA(0);
+ PUTRGBA(dst_1, py_1, pa_1, 0, 0);
+ PUTRGBA(dst_2, py_2, pa_2, 0, 0);
+ENDYUV2RGBFUNC()
+
+YUV2RGBFUNC(yuv2rgb_c_24_rgb, uint8_t, 0)
+ LOADCHROMA(0);
+ PUTRGB24(dst_1, py_1, 0);
+ PUTRGB24(dst_2, py_2, 0);
+
+ LOADCHROMA(1);
+ PUTRGB24(dst_2, py_2, 1);
+ PUTRGB24(dst_1, py_1, 1);
+
+ LOADCHROMA(2);
+ PUTRGB24(dst_1, py_1, 2);
+ PUTRGB24(dst_2, py_2, 2);
+
+ LOADCHROMA(3);
+ PUTRGB24(dst_2, py_2, 3);
+ PUTRGB24(dst_1, py_1, 3);
+ENDYUV2RGBLINE(24, 0)
+ LOADCHROMA(0);
+ PUTRGB24(dst_1, py_1, 0);
+ PUTRGB24(dst_2, py_2, 0);
+
+ LOADCHROMA(1);
+ PUTRGB24(dst_2, py_2, 1);
+ PUTRGB24(dst_1, py_1, 1);
+ENDYUV2RGBLINE(24, 1)
+ LOADCHROMA(0);
+ PUTRGB24(dst_1, py_1, 0);
+ PUTRGB24(dst_2, py_2, 0);
+ENDYUV2RGBFUNC()
+
+// only trivial mods from yuv2rgb_c_24_rgb
+YUV2RGBFUNC(yuv2rgb_c_24_bgr, uint8_t, 0)
+ LOADCHROMA(0);
+ PUTBGR24(dst_1, py_1, 0);
+ PUTBGR24(dst_2, py_2, 0);
+
+ LOADCHROMA(1);
+ PUTBGR24(dst_2, py_2, 1);
+ PUTBGR24(dst_1, py_1, 1);
+
+ LOADCHROMA(2);
+ PUTBGR24(dst_1, py_1, 2);
+ PUTBGR24(dst_2, py_2, 2);
+
+ LOADCHROMA(3);
+ PUTBGR24(dst_2, py_2, 3);
+ PUTBGR24(dst_1, py_1, 3);
+ENDYUV2RGBLINE(24, 0)
+ LOADCHROMA(0);
+ PUTBGR24(dst_1, py_1, 0);
+ PUTBGR24(dst_2, py_2, 0);
+
+ LOADCHROMA(1);
+ PUTBGR24(dst_2, py_2, 1);
+ PUTBGR24(dst_1, py_1, 1);
+ENDYUV2RGBLINE(24, 1)
+ LOADCHROMA(0);
+ PUTBGR24(dst_1, py_1, 0);
+ PUTBGR24(dst_2, py_2, 0);
+ENDYUV2RGBFUNC()
+
+YUV2RGBFUNC(yuv2rgb_c_16_ordered_dither, uint16_t, 0)
+ const uint8_t *d16 = dither_2x2_8[y & 1];
+ const uint8_t *e16 = dither_2x2_4[y & 1];
+ const uint8_t *f16 = dither_2x2_8[(y & 1)^1];
+
+#define PUTRGB16(dst, src, i, o) \
+ Y = src[2 * i]; \
+ dst[2 * i] = r[Y + d16[0 + o]] + \
+ g[Y + e16[0 + o]] + \
+ b[Y + f16[0 + o]]; \
+ Y = src[2 * i + 1]; \
+ dst[2 * i + 1] = r[Y + d16[1 + o]] + \
+ g[Y + e16[1 + o]] + \
+ b[Y + f16[1 + o]];
+ LOADCHROMA(0);
+ PUTRGB16(dst_1, py_1, 0, 0);
+ PUTRGB16(dst_2, py_2, 0, 0 + 8);
+
+ LOADCHROMA(1);
+ PUTRGB16(dst_2, py_2, 1, 2 + 8);
+ PUTRGB16(dst_1, py_1, 1, 2);
+
+ LOADCHROMA(2);
+ PUTRGB16(dst_1, py_1, 2, 4);
+ PUTRGB16(dst_2, py_2, 2, 4 + 8);
+
+ LOADCHROMA(3);
+ PUTRGB16(dst_2, py_2, 3, 6 + 8);
+ PUTRGB16(dst_1, py_1, 3, 6);
+CLOSEYUV2RGBFUNC(8)
+
+YUV2RGBFUNC(yuv2rgb_c_15_ordered_dither, uint16_t, 0)
+ const uint8_t *d16 = dither_2x2_8[y & 1];
+ const uint8_t *e16 = dither_2x2_8[(y & 1)^1];
+
+#define PUTRGB15(dst, src, i, o) \
+ Y = src[2 * i]; \
+ dst[2 * i] = r[Y + d16[0 + o]] + \
+ g[Y + d16[1 + o]] + \
+ b[Y + e16[0 + o]]; \
+ Y = src[2 * i + 1]; \
+ dst[2 * i + 1] = r[Y + d16[1 + o]] + \
+ g[Y + d16[0 + o]] + \
+ b[Y + e16[1 + o]];
+ LOADCHROMA(0);
+ PUTRGB15(dst_1, py_1, 0, 0);
+ PUTRGB15(dst_2, py_2, 0, 0 + 8);
+
+ LOADCHROMA(1);
+ PUTRGB15(dst_2, py_2, 1, 2 + 8);
+ PUTRGB15(dst_1, py_1, 1, 2);
+
+ LOADCHROMA(2);
+ PUTRGB15(dst_1, py_1, 2, 4);
+ PUTRGB15(dst_2, py_2, 2, 4 + 8);
+
+ LOADCHROMA(3);
+ PUTRGB15(dst_2, py_2, 3, 6 + 8);
+ PUTRGB15(dst_1, py_1, 3, 6);
+CLOSEYUV2RGBFUNC(8)
+
+// r, g, b, dst_1, dst_2
+YUV2RGBFUNC(yuv2rgb_c_12_ordered_dither, uint16_t, 0)
+ const uint8_t *d16 = dither_4x4_16[y & 3];
+
+#define PUTRGB12(dst, src, i, o) \
+ Y = src[2 * i]; \
+ dst[2 * i] = r[Y + d16[0 + o]] + \
+ g[Y + d16[0 + o]] + \
+ b[Y + d16[0 + o]]; \
+ Y = src[2 * i + 1]; \
+ dst[2 * i + 1] = r[Y + d16[1 + o]] + \
+ g[Y + d16[1 + o]] + \
+ b[Y + d16[1 + o]];
+
+ LOADCHROMA(0);
+ PUTRGB12(dst_1, py_1, 0, 0);
+ PUTRGB12(dst_2, py_2, 0, 0 + 8);
+
+ LOADCHROMA(1);
+ PUTRGB12(dst_2, py_2, 1, 2 + 8);
+ PUTRGB12(dst_1, py_1, 1, 2);
+
+ LOADCHROMA(2);
+ PUTRGB12(dst_1, py_1, 2, 4);
+ PUTRGB12(dst_2, py_2, 2, 4 + 8);
+
+ LOADCHROMA(3);
+ PUTRGB12(dst_2, py_2, 3, 6 + 8);
+ PUTRGB12(dst_1, py_1, 3, 6);
+CLOSEYUV2RGBFUNC(8)
+
+// r, g, b, dst_1, dst_2
+YUV2RGBFUNC(yuv2rgb_c_8_ordered_dither, uint8_t, 0)
+ const uint8_t *d32 = dither_8x8_32[y & 7];
+ const uint8_t *d64 = dither_8x8_73[y & 7];
+
+#define PUTRGB8(dst, src, i, o) \
+ Y = src[2 * i]; \
+ dst[2 * i] = r[Y + d32[0 + o]] + \
+ g[Y + d32[0 + o]] + \
+ b[Y + d64[0 + o]]; \
+ Y = src[2 * i + 1]; \
+ dst[2 * i + 1] = r[Y + d32[1 + o]] + \
+ g[Y + d32[1 + o]] + \
+ b[Y + d64[1 + o]];
+
+ LOADCHROMA(0);
+ PUTRGB8(dst_1, py_1, 0, 0);
+ PUTRGB8(dst_2, py_2, 0, 0 + 8);
+
+ LOADCHROMA(1);
+ PUTRGB8(dst_2, py_2, 1, 2 + 8);
+ PUTRGB8(dst_1, py_1, 1, 2);
+
+ LOADCHROMA(2);
+ PUTRGB8(dst_1, py_1, 2, 4);
+ PUTRGB8(dst_2, py_2, 2, 4 + 8);
+
+ LOADCHROMA(3);
+ PUTRGB8(dst_2, py_2, 3, 6 + 8);
+ PUTRGB8(dst_1, py_1, 3, 6);
+CLOSEYUV2RGBFUNC(8)
+
+YUV2RGBFUNC(yuv2rgb_c_4_ordered_dither, uint8_t, 0)
+ const uint8_t * d64 = dither_8x8_73[y & 7];
+ const uint8_t *d128 = dither_8x8_220[y & 7];
+ int acc;
+
+#define PUTRGB4D(dst, src, i, o) \
+ Y = src[2 * i]; \
+ acc = r[Y + d128[0 + o]] + \
+ g[Y + d64[0 + o]] + \
+ b[Y + d128[0 + o]]; \
+ Y = src[2 * i + 1]; \
+ acc |= (r[Y + d128[1 + o]] + \
+ g[Y + d64[1 + o]] + \
+ b[Y + d128[1 + o]]) << 4; \
+ dst[i] = acc;
+
+ LOADCHROMA(0);
+ PUTRGB4D(dst_1, py_1, 0, 0);
+ PUTRGB4D(dst_2, py_2, 0, 0 + 8);
+
+ LOADCHROMA(1);
+ PUTRGB4D(dst_2, py_2, 1, 2 + 8);
+ PUTRGB4D(dst_1, py_1, 1, 2);
+
+ LOADCHROMA(2);
+ PUTRGB4D(dst_1, py_1, 2, 4);
+ PUTRGB4D(dst_2, py_2, 2, 4 + 8);
+
+ LOADCHROMA(3);
+ PUTRGB4D(dst_2, py_2, 3, 6 + 8);
+ PUTRGB4D(dst_1, py_1, 3, 6);
+CLOSEYUV2RGBFUNC(4)
+
+YUV2RGBFUNC(yuv2rgb_c_4b_ordered_dither, uint8_t, 0)
+ const uint8_t *d64 = dither_8x8_73[y & 7];
+ const uint8_t *d128 = dither_8x8_220[y & 7];
+
+#define PUTRGB4DB(dst, src, i, o) \
+ Y = src[2 * i]; \
+ dst[2 * i] = r[Y + d128[0 + o]] + \
+ g[Y + d64[0 + o]] + \
+ b[Y + d128[0 + o]]; \
+ Y = src[2 * i + 1]; \
+ dst[2 * i + 1] = r[Y + d128[1 + o]] + \
+ g[Y + d64[1 + o]] + \
+ b[Y + d128[1 + o]];
+
+ LOADCHROMA(0);
+ PUTRGB4DB(dst_1, py_1, 0, 0);
+ PUTRGB4DB(dst_2, py_2, 0, 0 + 8);
+
+ LOADCHROMA(1);
+ PUTRGB4DB(dst_2, py_2, 1, 2 + 8);
+ PUTRGB4DB(dst_1, py_1, 1, 2);
+
+ LOADCHROMA(2);
+ PUTRGB4DB(dst_1, py_1, 2, 4);
+ PUTRGB4DB(dst_2, py_2, 2, 4 + 8);
+
+ LOADCHROMA(3);
+ PUTRGB4DB(dst_2, py_2, 3, 6 + 8);
+ PUTRGB4DB(dst_1, py_1, 3, 6);
+CLOSEYUV2RGBFUNC(8)
+
+YUV2RGBFUNC(yuv2rgb_c_1_ordered_dither, uint8_t, 0)
+ const uint8_t *d128 = dither_8x8_220[y & 7];
+ char out_1 = 0, out_2 = 0;
+ g = c->table_gU[128 + YUVRGB_TABLE_HEADROOM] + c->table_gV[128 + YUVRGB_TABLE_HEADROOM];
+
+#define PUTRGB1(out, src, i, o) \
+ Y = src[2 * i]; \
+ out += out + g[Y + d128[0 + o]]; \
+ Y = src[2 * i + 1]; \
+ out += out + g[Y + d128[1 + o]];
+
+ PUTRGB1(out_1, py_1, 0, 0);
+ PUTRGB1(out_2, py_2, 0, 0 + 8);
+
+ PUTRGB1(out_2, py_2, 1, 2 + 8);
+ PUTRGB1(out_1, py_1, 1, 2);
+
+ PUTRGB1(out_1, py_1, 2, 4);
+ PUTRGB1(out_2, py_2, 2, 4 + 8);
+
+ PUTRGB1(out_2, py_2, 3, 6 + 8);
+ PUTRGB1(out_1, py_1, 3, 6);
+
+ dst_1[0] = out_1;
+ dst_2[0] = out_2;
+CLOSEYUV2RGBFUNC(1)
+
+SwsFunc ff_yuv2rgb_get_func_ptr(SwsContext *c)
+{
+ SwsFunc t = NULL;
+
+ if (HAVE_MMX)
+ t = ff_yuv2rgb_init_mmx(c);
+ else if (HAVE_VIS)
+ t = ff_yuv2rgb_init_vis(c);
+ else if (HAVE_ALTIVEC)
+ t = ff_yuv2rgb_init_altivec(c);
+ else if (ARCH_BFIN)
+ t = ff_yuv2rgb_get_func_ptr_bfin(c);
+
+ if (t)
+ return t;
+
+ av_log(c, AV_LOG_WARNING,
+ "No accelerated colorspace conversion found from %s to %s.\n",
+ av_get_pix_fmt_name(c->srcFormat), av_get_pix_fmt_name(c->dstFormat));
+
+ switch (c->dstFormat) {
+ case AV_PIX_FMT_BGR48BE:
+ case AV_PIX_FMT_BGR48LE:
+ return yuv2rgb_c_bgr48;
+ case AV_PIX_FMT_RGB48BE:
+ case AV_PIX_FMT_RGB48LE:
+ return yuv2rgb_c_48;
+ case AV_PIX_FMT_ARGB:
+ case AV_PIX_FMT_ABGR:
+ if (CONFIG_SWSCALE_ALPHA && isALPHA(c->srcFormat))
+ return yuva2argb_c;
+ case AV_PIX_FMT_RGBA:
+ case AV_PIX_FMT_BGRA:
+ return (CONFIG_SWSCALE_ALPHA && isALPHA(c->srcFormat)) ? yuva2rgba_c : yuv2rgb_c_32;
+ case AV_PIX_FMT_RGB24:
+ return yuv2rgb_c_24_rgb;
+ case AV_PIX_FMT_BGR24:
+ return yuv2rgb_c_24_bgr;
+ case AV_PIX_FMT_RGB565:
+ case AV_PIX_FMT_BGR565:
+ return yuv2rgb_c_16_ordered_dither;
+ case AV_PIX_FMT_RGB555:
+ case AV_PIX_FMT_BGR555:
+ return yuv2rgb_c_15_ordered_dither;
+ case AV_PIX_FMT_RGB444:
+ case AV_PIX_FMT_BGR444:
+ return yuv2rgb_c_12_ordered_dither;
+ case AV_PIX_FMT_RGB8:
+ case AV_PIX_FMT_BGR8:
+ return yuv2rgb_c_8_ordered_dither;
+ case AV_PIX_FMT_RGB4:
+ case AV_PIX_FMT_BGR4:
+ return yuv2rgb_c_4_ordered_dither;
+ case AV_PIX_FMT_RGB4_BYTE:
+ case AV_PIX_FMT_BGR4_BYTE:
+ return yuv2rgb_c_4b_ordered_dither;
+ case AV_PIX_FMT_MONOBLACK:
+ return yuv2rgb_c_1_ordered_dither;
+ }
+ return NULL;
+}
+
+static void fill_table(uint8_t* table[256 + 2*YUVRGB_TABLE_HEADROOM], const int elemsize,
+ const int64_t inc, void *y_tab)
+{
+ int i;
+ uint8_t *y_table = y_tab;
+
+ y_table -= elemsize * (inc >> 9);
+
+ for (i = 0; i < 256 + 2*YUVRGB_TABLE_HEADROOM; i++) {
+ int64_t cb = av_clip(i-YUVRGB_TABLE_HEADROOM, 0, 255)*inc;
+ table[i] = y_table + elemsize * (cb >> 16);
+ }
+}
+
+static void fill_gv_table(int table[256 + 2*YUVRGB_TABLE_HEADROOM], const int elemsize, const int64_t inc)
+{
+ int i;
+ int off = -(inc >> 9);
+
+ for (i = 0; i < 256 + 2*YUVRGB_TABLE_HEADROOM; i++) {
+ int64_t cb = av_clip(i-YUVRGB_TABLE_HEADROOM, 0, 255)*inc;
+ table[i] = elemsize * (off + (cb >> 16));
+ }
+}
+
+static uint16_t roundToInt16(int64_t f)
+{
+ int r = (f + (1 << 15)) >> 16;
+
+ if (r < -0x7FFF)
+ return 0x8000;
+ else if (r > 0x7FFF)
+ return 0x7FFF;
+ else
+ return r;
+}
+
+av_cold int ff_yuv2rgb_c_init_tables(SwsContext *c, const int inv_table[4],
+ int fullRange, int brightness,
+ int contrast, int saturation)
+{
+ const int isRgb = c->dstFormat == AV_PIX_FMT_RGB32 ||
+ c->dstFormat == AV_PIX_FMT_RGB32_1 ||
+ c->dstFormat == AV_PIX_FMT_BGR24 ||
+ c->dstFormat == AV_PIX_FMT_RGB565BE ||
+ c->dstFormat == AV_PIX_FMT_RGB565LE ||
+ c->dstFormat == AV_PIX_FMT_RGB555BE ||
+ c->dstFormat == AV_PIX_FMT_RGB555LE ||
+ c->dstFormat == AV_PIX_FMT_RGB444BE ||
+ c->dstFormat == AV_PIX_FMT_RGB444LE ||
+ c->dstFormat == AV_PIX_FMT_RGB8 ||
+ c->dstFormat == AV_PIX_FMT_RGB4 ||
+ c->dstFormat == AV_PIX_FMT_RGB4_BYTE ||
+ c->dstFormat == AV_PIX_FMT_MONOBLACK;
+ const int isNotNe = c->dstFormat == AV_PIX_FMT_NE(RGB565LE, RGB565BE) ||
+ c->dstFormat == AV_PIX_FMT_NE(RGB555LE, RGB555BE) ||
+ c->dstFormat == AV_PIX_FMT_NE(RGB444LE, RGB444BE) ||
+ c->dstFormat == AV_PIX_FMT_NE(BGR565LE, BGR565BE) ||
+ c->dstFormat == AV_PIX_FMT_NE(BGR555LE, BGR555BE) ||
+ c->dstFormat == AV_PIX_FMT_NE(BGR444LE, BGR444BE);
+ const int bpp = c->dstFormatBpp;
+ uint8_t *y_table;
+ uint16_t *y_table16;
+ uint32_t *y_table32;
+ int i, base, rbase, gbase, bbase, av_uninit(abase), needAlpha;
+ const int yoffs = fullRange ? 384 : 326;
+
+ int64_t crv = inv_table[0];
+ int64_t cbu = inv_table[1];
+ int64_t cgu = -inv_table[2];
+ int64_t cgv = -inv_table[3];
+ int64_t cy = 1 << 16;
+ int64_t oy = 0;
+ int64_t yb = 0;
+
+ if (!fullRange) {
+ cy = (cy * 255) / 219;
+ oy = 16 << 16;
+ } else {
+ crv = (crv * 224) / 255;
+ cbu = (cbu * 224) / 255;
+ cgu = (cgu * 224) / 255;
+ cgv = (cgv * 224) / 255;
+ }
+
+ cy = (cy * contrast) >> 16;
+ crv = (crv * contrast * saturation) >> 32;
+ cbu = (cbu * contrast * saturation) >> 32;
+ cgu = (cgu * contrast * saturation) >> 32;
+ cgv = (cgv * contrast * saturation) >> 32;
+ oy -= 256 * brightness;
+
+ c->uOffset = 0x0400040004000400LL;
+ c->vOffset = 0x0400040004000400LL;
+ c->yCoeff = roundToInt16(cy * 8192) * 0x0001000100010001ULL;
+ c->vrCoeff = roundToInt16(crv * 8192) * 0x0001000100010001ULL;
+ c->ubCoeff = roundToInt16(cbu * 8192) * 0x0001000100010001ULL;
+ c->vgCoeff = roundToInt16(cgv * 8192) * 0x0001000100010001ULL;
+ c->ugCoeff = roundToInt16(cgu * 8192) * 0x0001000100010001ULL;
+ c->yOffset = roundToInt16(oy * 8) * 0x0001000100010001ULL;
+
+ c->yuv2rgb_y_coeff = (int16_t)roundToInt16(cy << 13);
+ c->yuv2rgb_y_offset = (int16_t)roundToInt16(oy << 9);
+ c->yuv2rgb_v2r_coeff = (int16_t)roundToInt16(crv << 13);
+ c->yuv2rgb_v2g_coeff = (int16_t)roundToInt16(cgv << 13);
+ c->yuv2rgb_u2g_coeff = (int16_t)roundToInt16(cgu << 13);
+ c->yuv2rgb_u2b_coeff = (int16_t)roundToInt16(cbu << 13);
+
+ //scale coefficients by cy
+ crv = ((crv << 16) + 0x8000) / cy;
+ cbu = ((cbu << 16) + 0x8000) / cy;
+ cgu = ((cgu << 16) + 0x8000) / cy;
+ cgv = ((cgv << 16) + 0x8000) / cy;
+
+ av_free(c->yuvTable);
+
+ switch (bpp) {
+ case 1:
+ c->yuvTable = av_malloc(1024);
+ y_table = c->yuvTable;
+ yb = -(384 << 16) - oy;
+ for (i = 0; i < 1024 - 110; i++) {
+ y_table[i + 110] = av_clip_uint8((yb + 0x8000) >> 16) >> 7;
+ yb += cy;
+ }
+ fill_table(c->table_gU, 1, cgu, y_table + yoffs);
+ fill_gv_table(c->table_gV, 1, cgv);
+ break;
+ case 4:
+ case 4 | 128:
+ rbase = isRgb ? 3 : 0;
+ gbase = 1;
+ bbase = isRgb ? 0 : 3;
+ c->yuvTable = av_malloc(1024 * 3);
+ y_table = c->yuvTable;
+ yb = -(384 << 16) - oy;
+ for (i = 0; i < 1024 - 110; i++) {
+ int yval = av_clip_uint8((yb + 0x8000) >> 16);
+ y_table[i + 110] = (yval >> 7) << rbase;
+ y_table[i + 37 + 1024] = ((yval + 43) / 85) << gbase;
+ y_table[i + 110 + 2048] = (yval >> 7) << bbase;
+ yb += cy;
+ }
+ fill_table(c->table_rV, 1, crv, y_table + yoffs);
+ fill_table(c->table_gU, 1, cgu, y_table + yoffs + 1024);
+ fill_table(c->table_bU, 1, cbu, y_table + yoffs + 2048);
+ fill_gv_table(c->table_gV, 1, cgv);
+ break;
+ case 8:
+ rbase = isRgb ? 5 : 0;
+ gbase = isRgb ? 2 : 3;
+ bbase = isRgb ? 0 : 6;
+ c->yuvTable = av_malloc(1024 * 3);
+ y_table = c->yuvTable;
+ yb = -(384 << 16) - oy;
+ for (i = 0; i < 1024 - 38; i++) {
+ int yval = av_clip_uint8((yb + 0x8000) >> 16);
+ y_table[i + 16] = ((yval + 18) / 36) << rbase;
+ y_table[i + 16 + 1024] = ((yval + 18) / 36) << gbase;
+ y_table[i + 37 + 2048] = ((yval + 43) / 85) << bbase;
+ yb += cy;
+ }
+ fill_table(c->table_rV, 1, crv, y_table + yoffs);
+ fill_table(c->table_gU, 1, cgu, y_table + yoffs + 1024);
+ fill_table(c->table_bU, 1, cbu, y_table + yoffs + 2048);
+ fill_gv_table(c->table_gV, 1, cgv);
+ break;
+ case 12:
+ rbase = isRgb ? 8 : 0;
+ gbase = 4;
+ bbase = isRgb ? 0 : 8;
+ c->yuvTable = av_malloc(1024 * 3 * 2);
+ y_table16 = c->yuvTable;
+ yb = -(384 << 16) - oy;
+ for (i = 0; i < 1024; i++) {
+ uint8_t yval = av_clip_uint8((yb + 0x8000) >> 16);
+ y_table16[i] = (yval >> 4) << rbase;
+ y_table16[i + 1024] = (yval >> 4) << gbase;
+ y_table16[i + 2048] = (yval >> 4) << bbase;
+ yb += cy;
+ }
+ if (isNotNe)
+ for (i = 0; i < 1024 * 3; i++)
+ y_table16[i] = av_bswap16(y_table16[i]);
+ fill_table(c->table_rV, 2, crv, y_table16 + yoffs);
+ fill_table(c->table_gU, 2, cgu, y_table16 + yoffs + 1024);
+ fill_table(c->table_bU, 2, cbu, y_table16 + yoffs + 2048);
+ fill_gv_table(c->table_gV, 2, cgv);
+ break;
+ case 15:
+ case 16:
+ rbase = isRgb ? bpp - 5 : 0;
+ gbase = 5;
+ bbase = isRgb ? 0 : (bpp - 5);
+ c->yuvTable = av_malloc(1024 * 3 * 2);
+ y_table16 = c->yuvTable;
+ yb = -(384 << 16) - oy;
+ for (i = 0; i < 1024; i++) {
+ uint8_t yval = av_clip_uint8((yb + 0x8000) >> 16);
+ y_table16[i] = (yval >> 3) << rbase;
+ y_table16[i + 1024] = (yval >> (18 - bpp)) << gbase;
+ y_table16[i + 2048] = (yval >> 3) << bbase;
+ yb += cy;
+ }
+ if (isNotNe)
+ for (i = 0; i < 1024 * 3; i++)
+ y_table16[i] = av_bswap16(y_table16[i]);
+ fill_table(c->table_rV, 2, crv, y_table16 + yoffs);
+ fill_table(c->table_gU, 2, cgu, y_table16 + yoffs + 1024);
+ fill_table(c->table_bU, 2, cbu, y_table16 + yoffs + 2048);
+ fill_gv_table(c->table_gV, 2, cgv);
+ break;
+ case 24:
+ case 48:
+ c->yuvTable = av_malloc(1024);
+ y_table = c->yuvTable;
+ yb = -(384 << 16) - oy;
+ for (i = 0; i < 1024; i++) {
+ y_table[i] = av_clip_uint8((yb + 0x8000) >> 16);
+ yb += cy;
+ }
+ fill_table(c->table_rV, 1, crv, y_table + yoffs);
+ fill_table(c->table_gU, 1, cgu, y_table + yoffs);
+ fill_table(c->table_bU, 1, cbu, y_table + yoffs);
+ fill_gv_table(c->table_gV, 1, cgv);
+ break;
+ case 32:
+ base = (c->dstFormat == AV_PIX_FMT_RGB32_1 ||
+ c->dstFormat == AV_PIX_FMT_BGR32_1) ? 8 : 0;
+ rbase = base + (isRgb ? 16 : 0);
+ gbase = base + 8;
+ bbase = base + (isRgb ? 0 : 16);
+ needAlpha = CONFIG_SWSCALE_ALPHA && isALPHA(c->srcFormat);
+ if (!needAlpha)
+ abase = (base + 24) & 31;
+ c->yuvTable = av_malloc(1024 * 3 * 4);
+ y_table32 = c->yuvTable;
+ yb = -(384 << 16) - oy;
+ for (i = 0; i < 1024; i++) {
+ unsigned yval = av_clip_uint8((yb + 0x8000) >> 16);
+ y_table32[i] = (yval << rbase) +
+ (needAlpha ? 0 : (255u << abase));
+ y_table32[i + 1024] = yval << gbase;
+ y_table32[i + 2048] = yval << bbase;
+ yb += cy;
+ }
+ fill_table(c->table_rV, 4, crv, y_table32 + yoffs);
+ fill_table(c->table_gU, 4, cgu, y_table32 + yoffs + 1024);
+ fill_table(c->table_bU, 4, cbu, y_table32 + yoffs + 2048);
+ fill_gv_table(c->table_gV, 4, cgv);
+ break;
+ default:
+ c->yuvTable = NULL;
+ if(!isPlanar(c->dstFormat) || bpp <= 24)
+ av_log(c, AV_LOG_ERROR, "%ibpp not supported by yuv2rgb\n", bpp);
+ return -1;
+ }
+ return 0;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2025-12-06 19:06:55 +0000