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-rw-r--r--libswscale/yuv2rgb.c848
1 files changed, 848 insertions, 0 deletions
diff --git a/libswscale/yuv2rgb.c b/libswscale/yuv2rgb.c
new file mode 100644
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--- /dev/null
+++ b/libswscale/yuv2rgb.c
@@ -0,0 +1,848 @@
+/*
+ * yuv2rgb.c, Software YUV to RGB coverter
+ *
+ * Copyright (C) 1999, Aaron Holtzman <aholtzma@ess.engr.uvic.ca>
+ * All Rights Reserved.
+ *
+ * Functions broken out from display_x11.c and several new modes
+ * added by Håkan Hjort <d95hjort@dtek.chalmers.se>
+ *
+ * 15 & 16 bpp support by Franck Sicard <Franck.Sicard@solsoft.fr>
+ *
+ * This file is part of mpeg2dec, a free MPEG-2 video decoder
+ *
+ * mpeg2dec is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * mpeg2dec 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GNU Make; see the file COPYING. If not, write to
+ * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ * MMX/MMX2 Template stuff from Michael Niedermayer (michaelni@gmx.at) (needed for fast movntq support)
+ * 1,4,8bpp support by Michael Niedermayer (michaelni@gmx.at)
+ * context / deglobalize stuff by Michael Niedermayer
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <inttypes.h>
+#include <assert.h>
+
+#include "config.h"
+//#include "video_out.h"
+#include "rgb2rgb.h"
+#include "swscale.h"
+#include "swscale_internal.h"
+#include "mangle.h"
+#include "libvo/img_format.h" //FIXME try to reduce dependency of such stuff
+
+#ifdef HAVE_MLIB
+#include "yuv2rgb_mlib.c"
+#endif
+
+#define DITHER1XBPP // only for mmx
+
+const uint8_t __attribute__((aligned(8))) dither_2x2_4[2][8]={
+{ 1, 3, 1, 3, 1, 3, 1, 3, },
+{ 2, 0, 2, 0, 2, 0, 2, 0, },
+};
+
+const uint8_t __attribute__((aligned(8))) dither_2x2_8[2][8]={
+{ 6, 2, 6, 2, 6, 2, 6, 2, },
+{ 0, 4, 0, 4, 0, 4, 0, 4, },
+};
+
+const uint8_t __attribute__((aligned(8))) dither_8x8_32[8][8]={
+{ 17, 9, 23, 15, 16, 8, 22, 14, },
+{ 5, 29, 3, 27, 4, 28, 2, 26, },
+{ 21, 13, 19, 11, 20, 12, 18, 10, },
+{ 0, 24, 6, 30, 1, 25, 7, 31, },
+{ 16, 8, 22, 14, 17, 9, 23, 15, },
+{ 4, 28, 2, 26, 5, 29, 3, 27, },
+{ 20, 12, 18, 10, 21, 13, 19, 11, },
+{ 1, 25, 7, 31, 0, 24, 6, 30, },
+};
+
+#if 0
+const uint8_t __attribute__((aligned(8))) dither_8x8_64[8][8]={
+{ 0, 48, 12, 60, 3, 51, 15, 63, },
+{ 32, 16, 44, 28, 35, 19, 47, 31, },
+{ 8, 56, 4, 52, 11, 59, 7, 55, },
+{ 40, 24, 36, 20, 43, 27, 39, 23, },
+{ 2, 50, 14, 62, 1, 49, 13, 61, },
+{ 34, 18, 46, 30, 33, 17, 45, 29, },
+{ 10, 58, 6, 54, 9, 57, 5, 53, },
+{ 42, 26, 38, 22, 41, 25, 37, 21, },
+};
+#endif
+
+const uint8_t __attribute__((aligned(8))) dither_8x8_73[8][8]={
+{ 0, 55, 14, 68, 3, 58, 17, 72, },
+{ 37, 18, 50, 32, 40, 22, 54, 35, },
+{ 9, 64, 5, 59, 13, 67, 8, 63, },
+{ 46, 27, 41, 23, 49, 31, 44, 26, },
+{ 2, 57, 16, 71, 1, 56, 15, 70, },
+{ 39, 21, 52, 34, 38, 19, 51, 33, },
+{ 11, 66, 7, 62, 10, 65, 6, 60, },
+{ 48, 30, 43, 25, 47, 29, 42, 24, },
+};
+
+#if 0
+const uint8_t __attribute__((aligned(8))) dither_8x8_128[8][8]={
+{ 68, 36, 92, 60, 66, 34, 90, 58, },
+{ 20, 116, 12, 108, 18, 114, 10, 106, },
+{ 84, 52, 76, 44, 82, 50, 74, 42, },
+{ 0, 96, 24, 120, 6, 102, 30, 126, },
+{ 64, 32, 88, 56, 70, 38, 94, 62, },
+{ 16, 112, 8, 104, 22, 118, 14, 110, },
+{ 80, 48, 72, 40, 86, 54, 78, 46, },
+{ 4, 100, 28, 124, 2, 98, 26, 122, },
+};
+#endif
+
+#if 1
+const uint8_t __attribute__((aligned(8))) dither_8x8_220[8][8]={
+{117, 62, 158, 103, 113, 58, 155, 100, },
+{ 34, 199, 21, 186, 31, 196, 17, 182, },
+{144, 89, 131, 76, 141, 86, 127, 72, },
+{ 0, 165, 41, 206, 10, 175, 52, 217, },
+{110, 55, 151, 96, 120, 65, 162, 107, },
+{ 28, 193, 14, 179, 38, 203, 24, 189, },
+{138, 83, 124, 69, 148, 93, 134, 79, },
+{ 7, 172, 48, 213, 3, 168, 45, 210, },
+};
+#elif 1
+// tries to correct a gamma of 1.5
+const uint8_t __attribute__((aligned(8))) dither_8x8_220[8][8]={
+{ 0, 143, 18, 200, 2, 156, 25, 215, },
+{ 78, 28, 125, 64, 89, 36, 138, 74, },
+{ 10, 180, 3, 161, 16, 195, 8, 175, },
+{109, 51, 93, 38, 121, 60, 105, 47, },
+{ 1, 152, 23, 210, 0, 147, 20, 205, },
+{ 85, 33, 134, 71, 81, 30, 130, 67, },
+{ 14, 190, 6, 171, 12, 185, 5, 166, },
+{117, 57, 101, 44, 113, 54, 97, 41, },
+};
+#elif 1
+// tries to correct a gamma of 2.0
+const uint8_t __attribute__((aligned(8))) dither_8x8_220[8][8]={
+{ 0, 124, 8, 193, 0, 140, 12, 213, },
+{ 55, 14, 104, 42, 66, 19, 119, 52, },
+{ 3, 168, 1, 145, 6, 187, 3, 162, },
+{ 86, 31, 70, 21, 99, 39, 82, 28, },
+{ 0, 134, 11, 206, 0, 129, 9, 200, },
+{ 62, 17, 114, 48, 58, 16, 109, 45, },
+{ 5, 181, 2, 157, 4, 175, 1, 151, },
+{ 95, 36, 78, 26, 90, 34, 74, 24, },
+};
+#else
+// tries to correct a gamma of 2.5
+const uint8_t __attribute__((aligned(8))) dither_8x8_220[8][8]={
+{ 0, 107, 3, 187, 0, 125, 6, 212, },
+{ 39, 7, 86, 28, 49, 11, 102, 36, },
+{ 1, 158, 0, 131, 3, 180, 1, 151, },
+{ 68, 19, 52, 12, 81, 25, 64, 17, },
+{ 0, 119, 5, 203, 0, 113, 4, 195, },
+{ 45, 9, 96, 33, 42, 8, 91, 30, },
+{ 2, 172, 1, 144, 2, 165, 0, 137, },
+{ 77, 23, 60, 15, 72, 21, 56, 14, },
+};
+#endif
+
+#if defined(ARCH_X86) || defined(ARCH_X86_64)
+
+/* hope these constant values are cache line aligned */
+uint64_t attribute_used __attribute__((aligned(8))) mmx_00ffw = 0x00ff00ff00ff00ffULL;
+uint64_t attribute_used __attribute__((aligned(8))) mmx_redmask = 0xf8f8f8f8f8f8f8f8ULL;
+uint64_t attribute_used __attribute__((aligned(8))) mmx_grnmask = 0xfcfcfcfcfcfcfcfcULL;
+
+uint64_t attribute_used __attribute__((aligned(8))) M24A= 0x00FF0000FF0000FFULL;
+uint64_t attribute_used __attribute__((aligned(8))) M24B= 0xFF0000FF0000FF00ULL;
+uint64_t attribute_used __attribute__((aligned(8))) M24C= 0x0000FF0000FF0000ULL;
+
+// the volatile is required because gcc otherwise optimizes some writes away not knowing that these
+// are read in the asm block
+volatile uint64_t attribute_used __attribute__((aligned(8))) b5Dither;
+volatile uint64_t attribute_used __attribute__((aligned(8))) g5Dither;
+volatile uint64_t attribute_used __attribute__((aligned(8))) g6Dither;
+volatile uint64_t attribute_used __attribute__((aligned(8))) r5Dither;
+
+uint64_t __attribute__((aligned(8))) dither4[2]={
+ 0x0103010301030103LL,
+ 0x0200020002000200LL,};
+
+uint64_t __attribute__((aligned(8))) dither8[2]={
+ 0x0602060206020602LL,
+ 0x0004000400040004LL,};
+
+#undef HAVE_MMX
+
+//MMX versions
+#undef RENAME
+#define HAVE_MMX
+#undef HAVE_MMX2
+#undef HAVE_3DNOW
+#define RENAME(a) a ## _MMX
+#include "yuv2rgb_template.c"
+
+//MMX2 versions
+#undef RENAME
+#define HAVE_MMX
+#define HAVE_MMX2
+#undef HAVE_3DNOW
+#define RENAME(a) a ## _MMX2
+#include "yuv2rgb_template.c"
+
+#endif // CAN_COMPILE_X86_ASM
+
+const int32_t Inverse_Table_6_9[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) */
+};
+
+#define RGB(i) \
+ U = pu[i]; \
+ V = pv[i]; \
+ r = c->table_rV[V]; \
+ g = c->table_gU[U] + c->table_gV[V]; \
+ b = c->table_bU[U];
+
+#define DST1(i) \
+ Y = py_1[2*i]; \
+ dst_1[2*i] = r[Y] + g[Y] + b[Y]; \
+ Y = py_1[2*i+1]; \
+ dst_1[2*i+1] = r[Y] + g[Y] + b[Y];
+
+#define DST2(i) \
+ Y = py_2[2*i]; \
+ dst_2[2*i] = r[Y] + g[Y] + b[Y]; \
+ Y = py_2[2*i+1]; \
+ dst_2[2*i+1] = r[Y] + g[Y] + b[Y];
+
+#define DST1RGB(i) \
+ Y = py_1[2*i]; \
+ dst_1[6*i] = r[Y]; dst_1[6*i+1] = g[Y]; dst_1[6*i+2] = b[Y]; \
+ Y = py_1[2*i+1]; \
+ dst_1[6*i+3] = r[Y]; dst_1[6*i+4] = g[Y]; dst_1[6*i+5] = b[Y];
+
+#define DST2RGB(i) \
+ Y = py_2[2*i]; \
+ dst_2[6*i] = r[Y]; dst_2[6*i+1] = g[Y]; dst_2[6*i+2] = b[Y]; \
+ Y = py_2[2*i+1]; \
+ dst_2[6*i+3] = r[Y]; dst_2[6*i+4] = g[Y]; dst_2[6*i+5] = b[Y];
+
+#define DST1BGR(i) \
+ Y = py_1[2*i]; \
+ dst_1[6*i] = b[Y]; dst_1[6*i+1] = g[Y]; dst_1[6*i+2] = r[Y]; \
+ Y = py_1[2*i+1]; \
+ dst_1[6*i+3] = b[Y]; dst_1[6*i+4] = g[Y]; dst_1[6*i+5] = r[Y];
+
+#define DST2BGR(i) \
+ Y = py_2[2*i]; \
+ dst_2[6*i] = b[Y]; dst_2[6*i+1] = g[Y]; dst_2[6*i+2] = r[Y]; \
+ Y = py_2[2*i+1]; \
+ dst_2[6*i+3] = b[Y]; dst_2[6*i+4] = g[Y]; dst_2[6*i+5] = r[Y];
+
+#define PROLOG(func_name, dst_type) \
+static int func_name(SwsContext *c, uint8_t* src[], int srcStride[], int srcSliceY, \
+ int srcSliceH, uint8_t* dst[], int dstStride[]){\
+ int y;\
+\
+ if(c->srcFormat == IMGFMT_422P){\
+ 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 *r, *g, *b;\
+ uint8_t *py_1= src[0] + y*srcStride[0];\
+ uint8_t *py_2= py_1 + srcStride[0];\
+ uint8_t *pu= src[1] + (y>>1)*srcStride[1];\
+ uint8_t *pv= src[2] + (y>>1)*srcStride[2];\
+ unsigned int h_size= c->dstW>>3;\
+ while (h_size--) {\
+ int U, V, Y;\
+
+#define EPILOG(dst_delta)\
+ pu += 4;\
+ pv += 4;\
+ py_1 += 8;\
+ py_2 += 8;\
+ dst_1 += dst_delta;\
+ dst_2 += dst_delta;\
+ }\
+ }\
+ return srcSliceH;\
+}
+
+PROLOG(yuv2rgb_c_32, uint32_t)
+ RGB(0);
+ DST1(0);
+ DST2(0);
+
+ RGB(1);
+ DST2(1);
+ DST1(1);
+
+ RGB(2);
+ DST1(2);
+ DST2(2);
+
+ RGB(3);
+ DST2(3);
+ DST1(3);
+EPILOG(8)
+
+PROLOG(yuv2rgb_c_24_rgb, uint8_t)
+ RGB(0);
+ DST1RGB(0);
+ DST2RGB(0);
+
+ RGB(1);
+ DST2RGB(1);
+ DST1RGB(1);
+
+ RGB(2);
+ DST1RGB(2);
+ DST2RGB(2);
+
+ RGB(3);
+ DST2RGB(3);
+ DST1RGB(3);
+EPILOG(24)
+
+// only trivial mods from yuv2rgb_c_24_rgb
+PROLOG(yuv2rgb_c_24_bgr, uint8_t)
+ RGB(0);
+ DST1BGR(0);
+ DST2BGR(0);
+
+ RGB(1);
+ DST2BGR(1);
+ DST1BGR(1);
+
+ RGB(2);
+ DST1BGR(2);
+ DST2BGR(2);
+
+ RGB(3);
+ DST2BGR(3);
+ DST1BGR(3);
+EPILOG(24)
+
+// This is exactly the same code as yuv2rgb_c_32 except for the types of
+// r, g, b, dst_1, dst_2
+PROLOG(yuv2rgb_c_16, uint16_t)
+ RGB(0);
+ DST1(0);
+ DST2(0);
+
+ RGB(1);
+ DST2(1);
+ DST1(1);
+
+ RGB(2);
+ DST1(2);
+ DST2(2);
+
+ RGB(3);
+ DST2(3);
+ DST1(3);
+EPILOG(8)
+
+// This is exactly the same code as yuv2rgb_c_32 except for the types of
+// r, g, b, dst_1, dst_2
+PROLOG(yuv2rgb_c_8, uint8_t)
+ RGB(0);
+ DST1(0);
+ DST2(0);
+
+ RGB(1);
+ DST2(1);
+ DST1(1);
+
+ RGB(2);
+ DST1(2);
+ DST2(2);
+
+ RGB(3);
+ DST2(3);
+ DST1(3);
+EPILOG(8)
+
+// r, g, b, dst_1, dst_2
+PROLOG(yuv2rgb_c_8_ordered_dither, uint8_t)
+ const uint8_t *d32= dither_8x8_32[y&7];
+ const uint8_t *d64= dither_8x8_73[y&7];
+#define DST1bpp8(i,o) \
+ Y = py_1[2*i]; \
+ dst_1[2*i] = r[Y+d32[0+o]] + g[Y+d32[0+o]] + b[Y+d64[0+o]]; \
+ Y = py_1[2*i+1]; \
+ dst_1[2*i+1] = r[Y+d32[1+o]] + g[Y+d32[1+o]] + b[Y+d64[1+o]];
+
+#define DST2bpp8(i,o) \
+ Y = py_2[2*i]; \
+ dst_2[2*i] = r[Y+d32[8+o]] + g[Y+d32[8+o]] + b[Y+d64[8+o]]; \
+ Y = py_2[2*i+1]; \
+ dst_2[2*i+1] = r[Y+d32[9+o]] + g[Y+d32[9+o]] + b[Y+d64[9+o]];
+
+
+ RGB(0);
+ DST1bpp8(0,0);
+ DST2bpp8(0,0);
+
+ RGB(1);
+ DST2bpp8(1,2);
+ DST1bpp8(1,2);
+
+ RGB(2);
+ DST1bpp8(2,4);
+ DST2bpp8(2,4);
+
+ RGB(3);
+ DST2bpp8(3,6);
+ DST1bpp8(3,6);
+EPILOG(8)
+
+
+// This is exactly the same code as yuv2rgb_c_32 except for the types of
+// r, g, b, dst_1, dst_2
+PROLOG(yuv2rgb_c_4, uint8_t)
+ int acc;
+#define DST1_4(i) \
+ Y = py_1[2*i]; \
+ acc = r[Y] + g[Y] + b[Y]; \
+ Y = py_1[2*i+1]; \
+ acc |= (r[Y] + g[Y] + b[Y])<<4;\
+ dst_1[i] = acc;
+
+#define DST2_4(i) \
+ Y = py_2[2*i]; \
+ acc = r[Y] + g[Y] + b[Y]; \
+ Y = py_2[2*i+1]; \
+ acc |= (r[Y] + g[Y] + b[Y])<<4;\
+ dst_2[i] = acc;
+
+ RGB(0);
+ DST1_4(0);
+ DST2_4(0);
+
+ RGB(1);
+ DST2_4(1);
+ DST1_4(1);
+
+ RGB(2);
+ DST1_4(2);
+ DST2_4(2);
+
+ RGB(3);
+ DST2_4(3);
+ DST1_4(3);
+EPILOG(4)
+
+PROLOG(yuv2rgb_c_4_ordered_dither, uint8_t)
+ const uint8_t *d64= dither_8x8_73[y&7];
+ const uint8_t *d128=dither_8x8_220[y&7];
+ int acc;
+
+#define DST1bpp4(i,o) \
+ Y = py_1[2*i]; \
+ acc = r[Y+d128[0+o]] + g[Y+d64[0+o]] + b[Y+d128[0+o]]; \
+ Y = py_1[2*i+1]; \
+ acc |= (r[Y+d128[1+o]] + g[Y+d64[1+o]] + b[Y+d128[1+o]])<<4;\
+ dst_1[i]= acc;
+
+#define DST2bpp4(i,o) \
+ Y = py_2[2*i]; \
+ acc = r[Y+d128[8+o]] + g[Y+d64[8+o]] + b[Y+d128[8+o]]; \
+ Y = py_2[2*i+1]; \
+ acc |= (r[Y+d128[9+o]] + g[Y+d64[9+o]] + b[Y+d128[9+o]])<<4;\
+ dst_2[i]= acc;
+
+
+ RGB(0);
+ DST1bpp4(0,0);
+ DST2bpp4(0,0);
+
+ RGB(1);
+ DST2bpp4(1,2);
+ DST1bpp4(1,2);
+
+ RGB(2);
+ DST1bpp4(2,4);
+ DST2bpp4(2,4);
+
+ RGB(3);
+ DST2bpp4(3,6);
+ DST1bpp4(3,6);
+EPILOG(4)
+
+// This is exactly the same code as yuv2rgb_c_32 except for the types of
+// r, g, b, dst_1, dst_2
+PROLOG(yuv2rgb_c_4b, uint8_t)
+ RGB(0);
+ DST1(0);
+ DST2(0);
+
+ RGB(1);
+ DST2(1);
+ DST1(1);
+
+ RGB(2);
+ DST1(2);
+ DST2(2);
+
+ RGB(3);
+ DST2(3);
+ DST1(3);
+EPILOG(8)
+
+PROLOG(yuv2rgb_c_4b_ordered_dither, uint8_t)
+ const uint8_t *d64= dither_8x8_73[y&7];
+ const uint8_t *d128=dither_8x8_220[y&7];
+
+#define DST1bpp4b(i,o) \
+ Y = py_1[2*i]; \
+ dst_1[2*i] = r[Y+d128[0+o]] + g[Y+d64[0+o]] + b[Y+d128[0+o]]; \
+ Y = py_1[2*i+1]; \
+ dst_1[2*i+1] = r[Y+d128[1+o]] + g[Y+d64[1+o]] + b[Y+d128[1+o]];
+
+#define DST2bpp4b(i,o) \
+ Y = py_2[2*i]; \
+ dst_2[2*i] = r[Y+d128[8+o]] + g[Y+d64[8+o]] + b[Y+d128[8+o]]; \
+ Y = py_2[2*i+1]; \
+ dst_2[2*i+1] = r[Y+d128[9+o]] + g[Y+d64[9+o]] + b[Y+d128[9+o]];
+
+
+ RGB(0);
+ DST1bpp4b(0,0);
+ DST2bpp4b(0,0);
+
+ RGB(1);
+ DST2bpp4b(1,2);
+ DST1bpp4b(1,2);
+
+ RGB(2);
+ DST1bpp4b(2,4);
+ DST2bpp4b(2,4);
+
+ RGB(3);
+ DST2bpp4b(3,6);
+ DST1bpp4b(3,6);
+EPILOG(8)
+
+PROLOG(yuv2rgb_c_1_ordered_dither, uint8_t)
+ const uint8_t *d128=dither_8x8_220[y&7];
+ char out_1=0, out_2=0;
+ g= c->table_gU[128] + c->table_gV[128];
+
+#define DST1bpp1(i,o) \
+ Y = py_1[2*i]; \
+ out_1+= out_1 + g[Y+d128[0+o]]; \
+ Y = py_1[2*i+1]; \
+ out_1+= out_1 + g[Y+d128[1+o]];
+
+#define DST2bpp1(i,o) \
+ Y = py_2[2*i]; \
+ out_2+= out_2 + g[Y+d128[8+o]]; \
+ Y = py_2[2*i+1]; \
+ out_2+= out_2 + g[Y+d128[9+o]];
+
+ DST1bpp1(0,0);
+ DST2bpp1(0,0);
+
+ DST2bpp1(1,2);
+ DST1bpp1(1,2);
+
+ DST1bpp1(2,4);
+ DST2bpp1(2,4);
+
+ DST2bpp1(3,6);
+ DST1bpp1(3,6);
+
+ dst_1[0]= out_1;
+ dst_2[0]= out_2;
+EPILOG(1)
+
+SwsFunc yuv2rgb_get_func_ptr (SwsContext *c)
+{
+#if defined(ARCH_X86) || defined(ARCH_X86_64)
+ if(c->flags & SWS_CPU_CAPS_MMX2){
+ switch(c->dstFormat){
+ case IMGFMT_BGR32: return yuv420_rgb32_MMX2;
+ case IMGFMT_BGR24: return yuv420_rgb24_MMX2;
+ case IMGFMT_BGR16: return yuv420_rgb16_MMX2;
+ case IMGFMT_BGR15: return yuv420_rgb15_MMX2;
+ }
+ }
+ if(c->flags & SWS_CPU_CAPS_MMX){
+ switch(c->dstFormat){
+ case IMGFMT_BGR32: return yuv420_rgb32_MMX;
+ case IMGFMT_BGR24: return yuv420_rgb24_MMX;
+ case IMGFMT_BGR16: return yuv420_rgb16_MMX;
+ case IMGFMT_BGR15: return yuv420_rgb15_MMX;
+ }
+ }
+#endif
+#ifdef HAVE_MLIB
+ {
+ SwsFunc t= yuv2rgb_init_mlib(c);
+ if(t) return t;
+ }
+#endif
+#ifdef HAVE_ALTIVEC
+ if (c->flags & SWS_CPU_CAPS_ALTIVEC)
+ {
+ SwsFunc t = yuv2rgb_init_altivec(c);
+ if(t) return t;
+ }
+#endif
+
+ MSG_WARN("No accelerated colorspace conversion found\n");
+
+ switch(c->dstFormat){
+ case IMGFMT_RGB32:
+ case IMGFMT_BGR32: return yuv2rgb_c_32;
+ case IMGFMT_RGB24: return yuv2rgb_c_24_rgb;
+ case IMGFMT_BGR24: return yuv2rgb_c_24_bgr;
+ case IMGFMT_RGB16:
+ case IMGFMT_BGR16:
+ case IMGFMT_RGB15:
+ case IMGFMT_BGR15: return yuv2rgb_c_16;
+ case IMGFMT_RGB8:
+ case IMGFMT_BGR8: return yuv2rgb_c_8_ordered_dither;
+ case IMGFMT_RGB4:
+ case IMGFMT_BGR4: return yuv2rgb_c_4_ordered_dither;
+ case IMGFMT_RG4B:
+ case IMGFMT_BG4B: return yuv2rgb_c_4b_ordered_dither;
+ case IMGFMT_RGB1:
+ case IMGFMT_BGR1: return yuv2rgb_c_1_ordered_dither;
+ default:
+ assert(0);
+ }
+ return NULL;
+}
+
+static int div_round (int dividend, int divisor)
+{
+ if (dividend > 0)
+ return (dividend + (divisor>>1)) / divisor;
+ else
+ return -((-dividend + (divisor>>1)) / divisor);
+}
+
+int yuv2rgb_c_init_tables (SwsContext *c, const int inv_table[4], int fullRange, int brightness, int contrast, int saturation)
+{
+ const int isRgb = IMGFMT_IS_BGR(c->dstFormat);
+ const int bpp = isRgb?IMGFMT_RGB_DEPTH(c->dstFormat):IMGFMT_BGR_DEPTH(c->dstFormat);
+ int i;
+ uint8_t table_Y[1024];
+ uint32_t *table_32 = 0;
+ uint16_t *table_16 = 0;
+ uint8_t *table_8 = 0;
+ uint8_t *table_332 = 0;
+ uint8_t *table_121 = 0;
+ uint8_t *table_1 = 0;
+ int entry_size = 0;
+ void *table_r = 0, *table_g = 0, *table_b = 0;
+ void *table_start;
+
+ 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;
+
+//printf("%lld %lld %lld %lld %lld\n", cy, crv, cbu, cgu, cgv);
+ if(!fullRange){
+ cy= (cy*255) / 219;
+ oy= 16<<16;
+ }
+
+ cy = (cy *contrast )>>16;
+ crv= (crv*contrast * saturation)>>32;
+ cbu= (cbu*contrast * saturation)>>32;
+ cgu= (cgu*contrast * saturation)>>32;
+ cgv= (cgv*contrast * saturation)>>32;
+//printf("%lld %lld %lld %lld %lld\n", cy, crv, cbu, cgu, cgv);
+ oy -= 256*brightness;
+
+ for (i = 0; i < 1024; i++) {
+ int j;
+
+ j= (cy*(((i - 384)<<16) - oy) + (1<<31))>>32;
+ j = (j < 0) ? 0 : ((j > 255) ? 255 : j);
+ table_Y[i] = j;
+ }
+
+ switch (bpp) {
+ case 32:
+ table_start= table_32 = malloc ((197 + 2*682 + 256 + 132) * sizeof (uint32_t));
+
+ entry_size = sizeof (uint32_t);
+ table_r = table_32 + 197;
+ table_b = table_32 + 197 + 685;
+ table_g = table_32 + 197 + 2*682;
+
+ for (i = -197; i < 256+197; i++)
+ ((uint32_t *)table_r)[i] = table_Y[i+384] << (isRgb ? 16 : 0);
+ for (i = -132; i < 256+132; i++)
+ ((uint32_t *)table_g)[i] = table_Y[i+384] << 8;
+ for (i = -232; i < 256+232; i++)
+ ((uint32_t *)table_b)[i] = table_Y[i+384] << (isRgb ? 0 : 16);
+ break;
+
+ case 24:
+ table_start= table_8 = malloc ((256 + 2*232) * sizeof (uint8_t));
+
+ entry_size = sizeof (uint8_t);
+ table_r = table_g = table_b = table_8 + 232;
+
+ for (i = -232; i < 256+232; i++)
+ ((uint8_t * )table_b)[i] = table_Y[i+384];
+ break;
+
+ case 15:
+ case 16:
+ table_start= table_16 = malloc ((197 + 2*682 + 256 + 132) * sizeof (uint16_t));
+
+ entry_size = sizeof (uint16_t);
+ table_r = table_16 + 197;
+ table_b = table_16 + 197 + 685;
+ table_g = table_16 + 197 + 2*682;
+
+ for (i = -197; i < 256+197; i++) {
+ int j = table_Y[i+384] >> 3;
+
+ if (isRgb)
+ j <<= ((bpp==16) ? 11 : 10);
+
+ ((uint16_t *)table_r)[i] = j;
+ }
+ for (i = -132; i < 256+132; i++) {
+ int j = table_Y[i+384] >> ((bpp==16) ? 2 : 3);
+
+ ((uint16_t *)table_g)[i] = j << 5;
+ }
+ for (i = -232; i < 256+232; i++) {
+ int j = table_Y[i+384] >> 3;
+
+ if (!isRgb)
+ j <<= ((bpp==16) ? 11 : 10);
+
+ ((uint16_t *)table_b)[i] = j;
+ }
+ break;
+
+ case 8:
+ table_start= table_332 = malloc ((197 + 2*682 + 256 + 132) * sizeof (uint8_t));
+
+ entry_size = sizeof (uint8_t);
+ table_r = table_332 + 197;
+ table_b = table_332 + 197 + 685;
+ table_g = table_332 + 197 + 2*682;
+
+ for (i = -197; i < 256+197; i++) {
+ int j = (table_Y[i+384 - 16] + 18)/36;
+
+ if (isRgb)
+ j <<= 5;
+
+ ((uint8_t *)table_r)[i] = j;
+ }
+ for (i = -132; i < 256+132; i++) {
+ int j = (table_Y[i+384 - 16] + 18)/36;
+
+ if (!isRgb)
+ j <<= 1;
+
+ ((uint8_t *)table_g)[i] = j << 2;
+ }
+ for (i = -232; i < 256+232; i++) {
+ int j = (table_Y[i+384 - 37] + 43)/85;
+
+ if (!isRgb)
+ j <<= 6;
+
+ ((uint8_t *)table_b)[i] = j;
+ }
+ break;
+ case 4:
+ case 4|128:
+ table_start= table_121 = malloc ((197 + 2*682 + 256 + 132) * sizeof (uint8_t));
+
+ entry_size = sizeof (uint8_t);
+ table_r = table_121 + 197;
+ table_b = table_121 + 197 + 685;
+ table_g = table_121 + 197 + 2*682;
+
+ for (i = -197; i < 256+197; i++) {
+ int j = table_Y[i+384 - 110] >> 7;
+
+ if (isRgb)
+ j <<= 3;
+
+ ((uint8_t *)table_r)[i] = j;
+ }
+ for (i = -132; i < 256+132; i++) {
+ int j = (table_Y[i+384 - 37]+ 43)/85;
+
+ ((uint8_t *)table_g)[i] = j << 1;
+ }
+ for (i = -232; i < 256+232; i++) {
+ int j =table_Y[i+384 - 110] >> 7;
+
+ if (!isRgb)
+ j <<= 3;
+
+ ((uint8_t *)table_b)[i] = j;
+ }
+ break;
+
+ case 1:
+ table_start= table_1 = malloc (256*2 * sizeof (uint8_t));
+
+ entry_size = sizeof (uint8_t);
+ table_g = table_1;
+ table_r = table_b = NULL;
+
+ for (i = 0; i < 256+256; i++) {
+ int j = table_Y[i + 384 - 110]>>7;
+
+ ((uint8_t *)table_g)[i] = j;
+ }
+ break;
+
+ default:
+ table_start= NULL;
+ MSG_ERR("%ibpp not supported by yuv2rgb\n", bpp);
+ //free mem?
+ return -1;
+ }
+
+ for (i = 0; i < 256; i++) {
+ c->table_rV[i] = table_r + entry_size * div_round (crv * (i-128), 76309);
+ c->table_gU[i] = table_g + entry_size * div_round (cgu * (i-128), 76309);
+ c->table_gV[i] = entry_size * div_round (cgv * (i-128), 76309);
+ c->table_bU[i] = table_b + entry_size * div_round (cbu * (i-128), 76309);
+ }
+
+ if(c->yuvTable) free(c->yuvTable);
+ c->yuvTable= table_start;
+ return 0;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-04-19 08:24:01 +0000