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ffmpeg/libswscale/swscale.c
Michael Niedermayer 7bea13f111 swscale: Fix scaling for unscaled dithered planar convertions. 
This fixes some overflow in bright areas and ensures that the maximum brightness level is
mapped to the maximum without cliping and without showing dither patterens in flat max
brightness areas.
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
2011-05-10 14:43:34 +02:00

2317 lines
83 KiB
C
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/*
* Copyright (C) 2001-2003 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
*/
/*
supported Input formats: YV12, I420/IYUV, YUY2, UYVY, BGR32, BGR32_1, BGR24, BGR16, BGR15, RGB32, RGB32_1, RGB24, Y8/Y800, YVU9/IF09, PAL8
supported output formats: YV12, I420/IYUV, YUY2, UYVY, {BGR,RGB}{1,4,8,15,16,24,32}, Y8/Y800, YVU9/IF09
{BGR,RGB}{1,4,8,15,16} support dithering
unscaled special converters (YV12=I420=IYUV, Y800=Y8)
YV12 -> {BGR,RGB}{1,4,8,12,15,16,24,32}
x -> x
YUV9 -> YV12
YUV9/YV12 -> Y800
Y800 -> YUV9/YV12
BGR24 -> BGR32 & RGB24 -> RGB32
BGR32 -> BGR24 & RGB32 -> RGB24
BGR15 -> BGR16
*/
/*
tested special converters (most are tested actually, but I did not write it down ...)
YV12 -> BGR12/BGR16
YV12 -> YV12
BGR15 -> BGR16
BGR16 -> BGR16
YVU9 -> YV12
untested special converters
YV12/I420 -> BGR15/BGR24/BGR32 (it is the yuv2rgb stuff, so it should be OK)
YV12/I420 -> YV12/I420
YUY2/BGR15/BGR24/BGR32/RGB24/RGB32 -> same format
BGR24 -> BGR32 & RGB24 -> RGB32
BGR32 -> BGR24 & RGB32 -> RGB24
BGR24 -> YV12
*/
#include <inttypes.h>
#include <string.h>
#include <math.h>
#include <stdio.h>
#include "config.h"
#include <assert.h>
#include "swscale.h"
#include "swscale_internal.h"
#include "rgb2rgb.h"
#include "libavutil/intreadwrite.h"
#include "libavutil/x86_cpu.h"
#include "libavutil/avutil.h"
#include "libavutil/mathematics.h"
#include "libavutil/bswap.h"
#include "libavutil/pixdesc.h"
#undef MOVNTQ
#undef PAVGB
//#undef HAVE_MMX2
//#define HAVE_AMD3DNOW
//#undef HAVE_MMX
//#undef ARCH_X86
#define DITHER1XBPP
#define isPacked(x) ( \
(x)==PIX_FMT_PAL8 \
|| (x)==PIX_FMT_YUYV422 \
|| (x)==PIX_FMT_UYVY422 \
|| (x)==PIX_FMT_GRAY8A \
|| isAnyRGB(x) \
)
#define RGB2YUV_SHIFT 15
#define BY ( (int)(0.114*219/255*(1<<RGB2YUV_SHIFT)+0.5))
#define BV (-(int)(0.081*224/255*(1<<RGB2YUV_SHIFT)+0.5))
#define BU ( (int)(0.500*224/255*(1<<RGB2YUV_SHIFT)+0.5))
#define GY ( (int)(0.587*219/255*(1<<RGB2YUV_SHIFT)+0.5))
#define GV (-(int)(0.419*224/255*(1<<RGB2YUV_SHIFT)+0.5))
#define GU (-(int)(0.331*224/255*(1<<RGB2YUV_SHIFT)+0.5))
#define RY ( (int)(0.299*219/255*(1<<RGB2YUV_SHIFT)+0.5))
#define RV ( (int)(0.500*224/255*(1<<RGB2YUV_SHIFT)+0.5))
#define RU (-(int)(0.169*224/255*(1<<RGB2YUV_SHIFT)+0.5))
static const double rgb2yuv_table[8][9]={
{0.7152, 0.0722, 0.2126, -0.386, 0.5, -0.115, -0.454, -0.046, 0.5}, //ITU709
{0.7152, 0.0722, 0.2126, -0.386, 0.5, -0.115, -0.454, -0.046, 0.5}, //ITU709
{0.587 , 0.114 , 0.299 , -0.331, 0.5, -0.169, -0.419, -0.081, 0.5}, //DEFAULT / ITU601 / ITU624 / SMPTE 170M
{0.587 , 0.114 , 0.299 , -0.331, 0.5, -0.169, -0.419, -0.081, 0.5}, //DEFAULT / ITU601 / ITU624 / SMPTE 170M
{0.59 , 0.11 , 0.30 , -0.331, 0.5, -0.169, -0.421, -0.079, 0.5}, //FCC
{0.587 , 0.114 , 0.299 , -0.331, 0.5, -0.169, -0.419, -0.081, 0.5}, //DEFAULT / ITU601 / ITU624 / SMPTE 170M
{0.587 , 0.114 , 0.299 , -0.331, 0.5, -0.169, -0.419, -0.081, 0.5}, //DEFAULT / ITU601 / ITU624 / SMPTE 170M
{0.701 , 0.087 , 0.212 , -0.384, 0.5, -0.116, -0.445, -0.055, 0.5}, //SMPTE 240M
};
/*
NOTES
Special versions: fast Y 1:1 scaling (no interpolation in y direction)
TODO
more intelligent misalignment avoidance for the horizontal scaler
write special vertical cubic upscale version
optimize C code (YV12 / minmax)
add support for packed pixel YUV input & output
add support for Y8 output
optimize BGR24 & BGR32
add BGR4 output support
write special BGR->BGR scaler
*/
#if ARCH_X86
DECLARE_ASM_CONST(8, uint64_t, bF8)= 0xF8F8F8F8F8F8F8F8LL;
DECLARE_ASM_CONST(8, uint64_t, bFC)= 0xFCFCFCFCFCFCFCFCLL;
DECLARE_ASM_CONST(8, uint64_t, w10)= 0x0010001000100010LL;
DECLARE_ASM_CONST(8, uint64_t, w02)= 0x0002000200020002LL;
DECLARE_ASM_CONST(8, uint64_t, bm00001111)=0x00000000FFFFFFFFLL;
DECLARE_ASM_CONST(8, uint64_t, bm00000111)=0x0000000000FFFFFFLL;
DECLARE_ASM_CONST(8, uint64_t, bm11111000)=0xFFFFFFFFFF000000LL;
DECLARE_ASM_CONST(8, uint64_t, bm01010101)=0x00FF00FF00FF00FFLL;
const DECLARE_ALIGNED(8, uint64_t, ff_dither4)[2] = {
0x0103010301030103LL,
0x0200020002000200LL,};
const DECLARE_ALIGNED(8, uint64_t, ff_dither8)[2] = {
0x0602060206020602LL,
0x0004000400040004LL,};
DECLARE_ASM_CONST(8, uint64_t, b16Mask)= 0x001F001F001F001FLL;
DECLARE_ASM_CONST(8, uint64_t, g16Mask)= 0x07E007E007E007E0LL;
DECLARE_ASM_CONST(8, uint64_t, r16Mask)= 0xF800F800F800F800LL;
DECLARE_ASM_CONST(8, uint64_t, b15Mask)= 0x001F001F001F001FLL;
DECLARE_ASM_CONST(8, uint64_t, g15Mask)= 0x03E003E003E003E0LL;
DECLARE_ASM_CONST(8, uint64_t, r15Mask)= 0x7C007C007C007C00LL;
DECLARE_ALIGNED(8, const uint64_t, ff_M24A) = 0x00FF0000FF0000FFLL;
DECLARE_ALIGNED(8, const uint64_t, ff_M24B) = 0xFF0000FF0000FF00LL;
DECLARE_ALIGNED(8, const uint64_t, ff_M24C) = 0x0000FF0000FF0000LL;
#ifdef FAST_BGR2YV12
DECLARE_ALIGNED(8, const uint64_t, ff_bgr2YCoeff) = 0x000000210041000DULL;
DECLARE_ALIGNED(8, const uint64_t, ff_bgr2UCoeff) = 0x0000FFEEFFDC0038ULL;
DECLARE_ALIGNED(8, const uint64_t, ff_bgr2VCoeff) = 0x00000038FFD2FFF8ULL;
#else
DECLARE_ALIGNED(8, const uint64_t, ff_bgr2YCoeff) = 0x000020E540830C8BULL;
DECLARE_ALIGNED(8, const uint64_t, ff_bgr2UCoeff) = 0x0000ED0FDAC23831ULL;
DECLARE_ALIGNED(8, const uint64_t, ff_bgr2VCoeff) = 0x00003831D0E6F6EAULL;
#endif /* FAST_BGR2YV12 */
DECLARE_ALIGNED(8, const uint64_t, ff_bgr2YOffset) = 0x1010101010101010ULL;
DECLARE_ALIGNED(8, const uint64_t, ff_bgr2UVOffset) = 0x8080808080808080ULL;
DECLARE_ALIGNED(8, const uint64_t, ff_w1111) = 0x0001000100010001ULL;
DECLARE_ASM_CONST(8, uint64_t, ff_bgr24toY1Coeff) = 0x0C88000040870C88ULL;
DECLARE_ASM_CONST(8, uint64_t, ff_bgr24toY2Coeff) = 0x20DE4087000020DEULL;
DECLARE_ASM_CONST(8, uint64_t, ff_rgb24toY1Coeff) = 0x20DE0000408720DEULL;
DECLARE_ASM_CONST(8, uint64_t, ff_rgb24toY2Coeff) = 0x0C88408700000C88ULL;
DECLARE_ASM_CONST(8, uint64_t, ff_bgr24toYOffset) = 0x0008400000084000ULL;
DECLARE_ASM_CONST(8, uint64_t, ff_bgr24toUV)[2][4] = {
{0x38380000DAC83838ULL, 0xECFFDAC80000ECFFULL, 0xF6E40000D0E3F6E4ULL, 0x3838D0E300003838ULL},
{0xECFF0000DAC8ECFFULL, 0x3838DAC800003838ULL, 0x38380000D0E33838ULL, 0xF6E4D0E30000F6E4ULL},
};
DECLARE_ASM_CONST(8, uint64_t, ff_bgr24toUVOffset)= 0x0040400000404000ULL;
#endif /* ARCH_X86 */
DECLARE_ALIGNED(8, static const uint8_t, dither_2x2_4)[2][8]={
{ 1, 3, 1, 3, 1, 3, 1, 3, },
{ 2, 0, 2, 0, 2, 0, 2, 0, },
};
DECLARE_ALIGNED(8, static const uint8_t, dither_2x2_8)[2][8]={
{ 6, 2, 6, 2, 6, 2, 6, 2, },
{ 0, 4, 0, 4, 0, 4, 0, 4, },
};
DECLARE_ALIGNED(8, const uint8_t, dither_4x4_16)[4][8]={
{ 8, 4, 11, 7, 8, 4, 11, 7, },
{ 2, 14, 1, 13, 2, 14, 1, 13, },
{ 10, 6, 9, 5, 10, 6, 9, 5, },
{ 0, 12, 3, 15, 0, 12, 3, 15, },
};
DECLARE_ALIGNED(8, const uint8_t, 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, },
};
DECLARE_ALIGNED(8, const uint8_t, 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 1
DECLARE_ALIGNED(8, const uint8_t, 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
DECLARE_ALIGNED(8, const uint8_t, 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
DECLARE_ALIGNED(8, const uint8_t, 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
DECLARE_ALIGNED(8, const uint8_t, 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
DECLARE_ALIGNED(8, const uint8_t, dithers)[8][8][8]={
{
{ 0, 1, 0, 1, 0, 1, 0, 1,},
{ 1, 0, 1, 0, 1, 0, 1, 0,},
{ 0, 1, 0, 1, 0, 1, 0, 1,},
{ 1, 0, 1, 0, 1, 0, 1, 0,},
{ 0, 1, 0, 1, 0, 1, 0, 1,},
{ 1, 0, 1, 0, 1, 0, 1, 0,},
{ 0, 1, 0, 1, 0, 1, 0, 1,},
{ 1, 0, 1, 0, 1, 0, 1, 0,},
},{
{ 1, 2, 1, 2, 1, 2, 1, 2,},
{ 3, 0, 3, 0, 3, 0, 3, 0,},
{ 1, 2, 1, 2, 1, 2, 1, 2,},
{ 3, 0, 3, 0, 3, 0, 3, 0,},
{ 1, 2, 1, 2, 1, 2, 1, 2,},
{ 3, 0, 3, 0, 3, 0, 3, 0,},
{ 1, 2, 1, 2, 1, 2, 1, 2,},
{ 3, 0, 3, 0, 3, 0, 3, 0,},
},{
{ 2, 4, 3, 5, 2, 4, 3, 5,},
{ 6, 0, 7, 1, 6, 0, 7, 1,},
{ 3, 5, 2, 4, 3, 5, 2, 4,},
{ 7, 1, 6, 0, 7, 1, 6, 0,},
{ 2, 4, 3, 5, 2, 4, 3, 5,},
{ 6, 0, 7, 1, 6, 0, 7, 1,},
{ 3, 5, 2, 4, 3, 5, 2, 4,},
{ 7, 1, 6, 0, 7, 1, 6, 0,},
},{
{ 4, 8, 7, 11, 4, 8, 7, 11,},
{ 12, 0, 15, 3, 12, 0, 15, 3,},
{ 6, 10, 5, 9, 6, 10, 5, 9,},
{ 14, 2, 13, 1, 14, 2, 13, 1,},
{ 4, 8, 7, 11, 4, 8, 7, 11,},
{ 12, 0, 15, 3, 12, 0, 15, 3,},
{ 6, 10, 5, 9, 6, 10, 5, 9,},
{ 14, 2, 13, 1, 14, 2, 13, 1,},
},{
{ 9, 17, 15, 23, 8, 16, 14, 22,},
{ 25, 1, 31, 7, 24, 0, 30, 6,},
{ 13, 21, 11, 19, 12, 20, 10, 18,},
{ 29, 5, 27, 3, 28, 4, 26, 2,},
{ 8, 16, 14, 22, 9, 17, 15, 23,},
{ 24, 0, 30, 6, 25, 1, 31, 7,},
{ 12, 20, 10, 18, 13, 21, 11, 19,},
{ 28, 4, 26, 2, 29, 5, 27, 3,},
},{
{ 18, 34, 30, 46, 17, 33, 29, 45,},
{ 50, 2, 62, 14, 49, 1, 61, 13,},
{ 26, 42, 22, 38, 25, 41, 21, 37,},
{ 58, 10, 54, 6, 57, 9, 53, 5,},
{ 16, 32, 28, 44, 19, 35, 31, 47,},
{ 48, 0, 60, 12, 51, 3, 63, 15,},
{ 24, 40, 20, 36, 27, 43, 23, 39,},
{ 56, 8, 52, 4, 59, 11, 55, 7,},
},{
{ 18, 34, 30, 46, 17, 33, 29, 45,},
{ 50, 2, 62, 14, 49, 1, 61, 13,},
{ 26, 42, 22, 38, 25, 41, 21, 37,},
{ 58, 10, 54, 6, 57, 9, 53, 5,},
{ 16, 32, 28, 44, 19, 35, 31, 47,},
{ 48, 0, 60, 12, 51, 3, 63, 15,},
{ 24, 40, 20, 36, 27, 43, 23, 39,},
{ 56, 8, 52, 4, 59, 11, 55, 7,},
},{
{ 36, 68, 60, 92, 34, 66, 58, 90,},
{ 100, 4,124, 28, 98, 2,122, 26,},
{ 52, 84, 44, 76, 50, 82, 42, 74,},
{ 116, 20,108, 12,114, 18,106, 10,},
{ 32, 64, 56, 88, 38, 70, 62, 94,},
{ 96, 0,120, 24,102, 6,126, 30,},
{ 48, 80, 40, 72, 54, 86, 46, 78,},
{ 112, 16,104, 8,118, 22,110, 14,},
}};
uint16_t dither_scale[15][16]={
{ 2, 3, 3, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,},
{ 2, 3, 7, 7, 13, 13, 25, 25, 25, 25, 25, 25, 25, 25, 25, 25,},
{ 3, 3, 4, 15, 15, 29, 57, 57, 57, 113, 113, 113, 113, 113, 113, 113,},
{ 3, 4, 4, 5, 31, 31, 61, 121, 241, 241, 241, 241, 481, 481, 481, 481,},
{ 3, 4, 5, 5, 6, 63, 63, 125, 249, 497, 993, 993, 993, 993, 993, 1985,},
{ 3, 5, 6, 6, 6, 7, 127, 127, 253, 505, 1009, 2017, 4033, 4033, 4033, 4033,},
{ 3, 5, 6, 7, 7, 7, 8, 255, 255, 509, 1017, 2033, 4065, 8129,16257,16257,},
{ 3, 5, 6, 8, 8, 8, 8, 9, 511, 511, 1021, 2041, 4081, 8161,16321,32641,},
{ 3, 5, 7, 8, 9, 9, 9, 9, 10, 1023, 1023, 2045, 4089, 8177,16353,32705,},
{ 3, 5, 7, 8, 10, 10, 10, 10, 10, 11, 2047, 2047, 4093, 8185,16369,32737,},
{ 3, 5, 7, 8, 10, 11, 11, 11, 11, 11, 12, 4095, 4095, 8189,16377,32753,},
{ 3, 5, 7, 9, 10, 12, 12, 12, 12, 12, 12, 13, 8191, 8191,16381,32761,},
{ 3, 5, 7, 9, 10, 12, 13, 13, 13, 13, 13, 13, 14,16383,16383,32765,},
{ 3, 5, 7, 9, 10, 12, 14, 14, 14, 14, 14, 14, 14, 15,32767,32767,},
{ 3, 5, 7, 9, 11, 12, 14, 15, 15, 15, 15, 15, 15, 15, 16,65535,},
};
static av_always_inline void yuv2yuvX16inC_template(const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,
const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize,
const int16_t **alpSrc, uint16_t *dest, uint16_t *uDest, uint16_t *vDest, uint16_t *aDest,
int dstW, int chrDstW, int big_endian)
{
//FIXME Optimize (just quickly written not optimized..)
int i;
for (i = 0; i < dstW; i++) {
int val = 1 << 10;
int j;
for (j = 0; j < lumFilterSize; j++)
val += lumSrc[j][i] * lumFilter[j];
if (big_endian) {
AV_WB16(&dest[i], av_clip_uint16(val >> 11));
} else {
AV_WL16(&dest[i], av_clip_uint16(val >> 11));
}
}
if (uDest) {
for (i = 0; i < chrDstW; i++) {
int u = 1 << 10;
int v = 1 << 10;
int j;
for (j = 0; j < chrFilterSize; j++) {
u += chrSrc[j][i ] * chrFilter[j];
v += chrSrc[j][i + VOFW] * chrFilter[j];
}
if (big_endian) {
AV_WB16(&uDest[i], av_clip_uint16(u >> 11));
AV_WB16(&vDest[i], av_clip_uint16(v >> 11));
} else {
AV_WL16(&uDest[i], av_clip_uint16(u >> 11));
AV_WL16(&vDest[i], av_clip_uint16(v >> 11));
}
}
}
if (CONFIG_SWSCALE_ALPHA && aDest) {
for (i = 0; i < dstW; i++) {
int val = 1 << 10;
int j;
for (j = 0; j < lumFilterSize; j++)
val += alpSrc[j][i] * lumFilter[j];
if (big_endian) {
AV_WB16(&aDest[i], av_clip_uint16(val >> 11));
} else {
AV_WL16(&aDest[i], av_clip_uint16(val >> 11));
}
}
}
}
static av_always_inline void yuv2yuvXNinC_template(const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,
const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize,
const int16_t **alpSrc, uint16_t *dest, uint16_t *uDest, uint16_t *vDest, uint16_t *aDest,
int dstW, int chrDstW, int big_endian, int depth)
{
//FIXME Optimize (just quickly written not optimized..)
int i;
for (i = 0; i < dstW; i++) {
int val = 1 << (26-depth);
int j;
for (j = 0; j < lumFilterSize; j++)
val += lumSrc[j][i] * lumFilter[j];
if (big_endian) {
AV_WB16(&dest[i], av_clip(val >> (27-depth), 0, (1<<depth)-1));
} else {
AV_WL16(&dest[i], av_clip(val >> (27-depth), 0, (1<<depth)-1));
}
}
if (uDest) {
for (i = 0; i < chrDstW; i++) {
int u = 1 << (26-depth);
int v = 1 << (26-depth);
int j;
for (j = 0; j < chrFilterSize; j++) {
u += chrSrc[j][i ] * chrFilter[j];
v += chrSrc[j][i + VOFW] * chrFilter[j];
}
if (big_endian) {
AV_WB16(&uDest[i], av_clip(u >> (27-depth), 0, (1<<depth)-1));
AV_WB16(&vDest[i], av_clip(v >> (27-depth), 0, (1<<depth)-1));
} else {
AV_WL16(&uDest[i], av_clip(u >> (27-depth), 0, (1<<depth)-1));
AV_WL16(&vDest[i], av_clip(v >> (27-depth), 0, (1<<depth)-1));
}
}
}
}
static inline void yuv2yuvX16inC(const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,
const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize,
const int16_t **alpSrc, uint16_t *dest, uint16_t *uDest, uint16_t *vDest, uint16_t *aDest, int dstW, int chrDstW,
enum PixelFormat dstFormat)
{
if (isNBPS(dstFormat)) {
const int depth = av_pix_fmt_descriptors[dstFormat].comp[0].depth_minus1+1;
yuv2yuvXNinC_template(lumFilter, lumSrc, lumFilterSize,
chrFilter, chrSrc, chrFilterSize,
alpSrc,
dest, uDest, vDest, aDest,
dstW, chrDstW, isBE(dstFormat), depth);
} else {
if (isBE(dstFormat)) {
yuv2yuvX16inC_template(lumFilter, lumSrc, lumFilterSize,
chrFilter, chrSrc, chrFilterSize,
alpSrc,
dest, uDest, vDest, aDest,
dstW, chrDstW, 1);
} else {
yuv2yuvX16inC_template(lumFilter, lumSrc, lumFilterSize,
chrFilter, chrSrc, chrFilterSize,
alpSrc,
dest, uDest, vDest, aDest,
dstW, chrDstW, 0);
}
}
}
static inline void yuv2yuvXinC(const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,
const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize,
const int16_t **alpSrc, uint8_t *dest, uint8_t *uDest, uint8_t *vDest, uint8_t *aDest, int dstW, int chrDstW)
{
//FIXME Optimize (just quickly written not optimized..)
int i;
for (i=0; i<dstW; i++) {
int val=1<<18;
int j;
for (j=0; j<lumFilterSize; j++)
val += lumSrc[j][i] * lumFilter[j];
dest[i]= av_clip_uint8(val>>19);
}
if (uDest)
for (i=0; i<chrDstW; i++) {
int u=1<<18;
int v=1<<18;
int j;
for (j=0; j<chrFilterSize; j++) {
u += chrSrc[j][i] * chrFilter[j];
v += chrSrc[j][i + VOFW] * chrFilter[j];
}
uDest[i]= av_clip_uint8(u>>19);
vDest[i]= av_clip_uint8(v>>19);
}
if (CONFIG_SWSCALE_ALPHA && aDest)
for (i=0; i<dstW; i++) {
int val=1<<18;
int j;
for (j=0; j<lumFilterSize; j++)
val += alpSrc[j][i] * lumFilter[j];
aDest[i]= av_clip_uint8(val>>19);
}
}
static inline void yuv2nv12XinC(const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,
const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize,
uint8_t *dest, uint8_t *uDest, int dstW, int chrDstW, int dstFormat)
{
//FIXME Optimize (just quickly written not optimized..)
int i;
for (i=0; i<dstW; i++) {
int val=1<<18;
int j;
for (j=0; j<lumFilterSize; j++)
val += lumSrc[j][i] * lumFilter[j];
dest[i]= av_clip_uint8(val>>19);
}
if (!uDest)
return;
if (dstFormat == PIX_FMT_NV12)
for (i=0; i<chrDstW; i++) {
int u=1<<18;
int v=1<<18;
int j;
for (j=0; j<chrFilterSize; j++) {
u += chrSrc[j][i] * chrFilter[j];
v += chrSrc[j][i + VOFW] * chrFilter[j];
}
uDest[2*i]= av_clip_uint8(u>>19);
uDest[2*i+1]= av_clip_uint8(v>>19);
}
else
for (i=0; i<chrDstW; i++) {
int u=1<<18;
int v=1<<18;
int j;
for (j=0; j<chrFilterSize; j++) {
u += chrSrc[j][i] * chrFilter[j];
v += chrSrc[j][i + VOFW] * chrFilter[j];
}
uDest[2*i]= av_clip_uint8(v>>19);
uDest[2*i+1]= av_clip_uint8(u>>19);
}
}
#define YSCALE_YUV_2_PACKEDX_NOCLIP_C(type,alpha) \
for (i=0; i<(dstW>>1); i++) {\
int j;\
int Y1 = 1<<18;\
int Y2 = 1<<18;\
int U = 1<<18;\
int V = 1<<18;\
int av_unused A1, A2;\
type av_unused *r, *b, *g;\
const int i2= 2*i;\
\
for (j=0; j<lumFilterSize; j++) {\
Y1 += lumSrc[j][i2] * lumFilter[j];\
Y2 += lumSrc[j][i2+1] * lumFilter[j];\
}\
for (j=0; j<chrFilterSize; j++) {\
U += chrSrc[j][i] * chrFilter[j];\
V += chrSrc[j][i+VOFW] * chrFilter[j];\
}\
Y1>>=19;\
Y2>>=19;\
U >>=19;\
V >>=19;\
if (alpha) {\
A1 = 1<<18;\
A2 = 1<<18;\
for (j=0; j<lumFilterSize; j++) {\
A1 += alpSrc[j][i2 ] * lumFilter[j];\
A2 += alpSrc[j][i2+1] * lumFilter[j];\
}\
A1>>=19;\
A2>>=19;\
}
#define YSCALE_YUV_2_PACKEDX_C(type,alpha) \
YSCALE_YUV_2_PACKEDX_NOCLIP_C(type,alpha)\
if ((Y1|Y2|U|V)&256) {\
if (Y1>255) Y1=255; \
else if (Y1<0)Y1=0; \
if (Y2>255) Y2=255; \
else if (Y2<0)Y2=0; \
if (U>255) U=255; \
else if (U<0) U=0; \
if (V>255) V=255; \
else if (V<0) V=0; \
}\
if (alpha && ((A1|A2)&256)) {\
A1=av_clip_uint8(A1);\
A2=av_clip_uint8(A2);\
}
#define YSCALE_YUV_2_PACKEDX_FULL_C(rnd,alpha) \
for (i=0; i<dstW; i++) {\
int j;\
int Y = 0;\
int U = -128<<19;\
int V = -128<<19;\
int av_unused A;\
int R,G,B;\
\
for (j=0; j<lumFilterSize; j++) {\
Y += lumSrc[j][i ] * lumFilter[j];\
}\
for (j=0; j<chrFilterSize; j++) {\
U += chrSrc[j][i ] * chrFilter[j];\
V += chrSrc[j][i+VOFW] * chrFilter[j];\
}\
Y >>=10;\
U >>=10;\
V >>=10;\
if (alpha) {\
A = rnd;\
for (j=0; j<lumFilterSize; j++)\
A += alpSrc[j][i ] * lumFilter[j];\
A >>=19;\
if (A&256)\
A = av_clip_uint8(A);\
}
#define YSCALE_YUV_2_RGBX_FULL_C(rnd,alpha) \
YSCALE_YUV_2_PACKEDX_FULL_C(rnd>>3,alpha)\
Y-= c->yuv2rgb_y_offset;\
Y*= c->yuv2rgb_y_coeff;\
Y+= rnd;\
R= Y + V*c->yuv2rgb_v2r_coeff;\
G= Y + V*c->yuv2rgb_v2g_coeff + U*c->yuv2rgb_u2g_coeff;\
B= Y + U*c->yuv2rgb_u2b_coeff;\
if ((R|G|B)&(0xC0000000)) {\
if (R>=(256<<22)) R=(256<<22)-1; \
else if (R<0)R=0; \
if (G>=(256<<22)) G=(256<<22)-1; \
else if (G<0)G=0; \
if (B>=(256<<22)) B=(256<<22)-1; \
else if (B<0)B=0; \
}
#define YSCALE_YUV_2_GRAY16_C \
for (i=0; i<(dstW>>1); i++) {\
int j;\
int Y1 = 1<<18;\
int Y2 = 1<<18;\
int U = 1<<18;\
int V = 1<<18;\
\
const int i2= 2*i;\
\
for (j=0; j<lumFilterSize; j++) {\
Y1 += lumSrc[j][i2] * lumFilter[j];\
Y2 += lumSrc[j][i2+1] * lumFilter[j];\
}\
Y1>>=11;\
Y2>>=11;\
if ((Y1|Y2|U|V)&65536) {\
if (Y1>65535) Y1=65535; \
else if (Y1<0)Y1=0; \
if (Y2>65535) Y2=65535; \
else if (Y2<0)Y2=0; \
}
#define YSCALE_YUV_2_RGBX_C(type,alpha) \
YSCALE_YUV_2_PACKEDX_C(type,alpha) /* FIXME fix tables so that clipping is not needed and then use _NOCLIP*/\
r = (type *)c->table_rV[V]; \
g = (type *)(c->table_gU[U] + c->table_gV[V]); \
b = (type *)c->table_bU[U];
#define YSCALE_YUV_2_PACKED2_C(type,alpha) \
for (i=0; i<(dstW>>1); i++) { \
const int i2= 2*i; \
int Y1= (buf0[i2 ]*yalpha1+buf1[i2 ]*yalpha)>>19; \
int Y2= (buf0[i2+1]*yalpha1+buf1[i2+1]*yalpha)>>19; \
int U= (uvbuf0[i ]*uvalpha1+uvbuf1[i ]*uvalpha)>>19; \
int V= (uvbuf0[i+VOFW]*uvalpha1+uvbuf1[i+VOFW]*uvalpha)>>19; \
type av_unused *r, *b, *g; \
int av_unused A1, A2; \
if (alpha) {\
A1= (abuf0[i2 ]*yalpha1+abuf1[i2 ]*yalpha)>>19; \
A2= (abuf0[i2+1]*yalpha1+abuf1[i2+1]*yalpha)>>19; \
}
#define YSCALE_YUV_2_GRAY16_2_C \
for (i=0; i<(dstW>>1); i++) { \
const int i2= 2*i; \
int Y1= (buf0[i2 ]*yalpha1+buf1[i2 ]*yalpha)>>11; \
int Y2= (buf0[i2+1]*yalpha1+buf1[i2+1]*yalpha)>>11;
#define YSCALE_YUV_2_RGB2_C(type,alpha) \
YSCALE_YUV_2_PACKED2_C(type,alpha)\
r = (type *)c->table_rV[V];\
g = (type *)(c->table_gU[U] + c->table_gV[V]);\
b = (type *)c->table_bU[U];
#define YSCALE_YUV_2_PACKED1_C(type,alpha) \
for (i=0; i<(dstW>>1); i++) {\
const int i2= 2*i;\
int Y1= buf0[i2 ]>>7;\
int Y2= buf0[i2+1]>>7;\
int U= (uvbuf1[i ])>>7;\
int V= (uvbuf1[i+VOFW])>>7;\
type av_unused *r, *b, *g;\
int av_unused A1, A2;\
if (alpha) {\
A1= abuf0[i2 ]>>7;\
A2= abuf0[i2+1]>>7;\
}
#define YSCALE_YUV_2_GRAY16_1_C \
for (i=0; i<(dstW>>1); i++) {\
const int i2= 2*i;\
int Y1= buf0[i2 ]<<1;\
int Y2= buf0[i2+1]<<1;
#define YSCALE_YUV_2_RGB1_C(type,alpha) \
YSCALE_YUV_2_PACKED1_C(type,alpha)\
r = (type *)c->table_rV[V];\
g = (type *)(c->table_gU[U] + c->table_gV[V]);\
b = (type *)c->table_bU[U];
#define YSCALE_YUV_2_PACKED1B_C(type,alpha) \
for (i=0; i<(dstW>>1); i++) {\
const int i2= 2*i;\
int Y1= buf0[i2 ]>>7;\
int Y2= buf0[i2+1]>>7;\
int U= (uvbuf0[i ] + uvbuf1[i ])>>8;\
int V= (uvbuf0[i+VOFW] + uvbuf1[i+VOFW])>>8;\
type av_unused *r, *b, *g;\
int av_unused A1, A2;\
if (alpha) {\
A1= abuf0[i2 ]>>7;\
A2= abuf0[i2+1]>>7;\
}
#define YSCALE_YUV_2_RGB1B_C(type,alpha) \
YSCALE_YUV_2_PACKED1B_C(type,alpha)\
r = (type *)c->table_rV[V];\
g = (type *)(c->table_gU[U] + c->table_gV[V]);\
b = (type *)c->table_bU[U];
#define YSCALE_YUV_2_MONO2_C \
const uint8_t * const d128=dither_8x8_220[y&7];\
uint8_t *g= c->table_gU[128] + c->table_gV[128];\
for (i=0; i<dstW-7; i+=8) {\
int acc;\
acc = g[((buf0[i ]*yalpha1+buf1[i ]*yalpha)>>19) + d128[0]];\
acc+= acc + g[((buf0[i+1]*yalpha1+buf1[i+1]*yalpha)>>19) + d128[1]];\
acc+= acc + g[((buf0[i+2]*yalpha1+buf1[i+2]*yalpha)>>19) + d128[2]];\
acc+= acc + g[((buf0[i+3]*yalpha1+buf1[i+3]*yalpha)>>19) + d128[3]];\
acc+= acc + g[((buf0[i+4]*yalpha1+buf1[i+4]*yalpha)>>19) + d128[4]];\
acc+= acc + g[((buf0[i+5]*yalpha1+buf1[i+5]*yalpha)>>19) + d128[5]];\
acc+= acc + g[((buf0[i+6]*yalpha1+buf1[i+6]*yalpha)>>19) + d128[6]];\
acc+= acc + g[((buf0[i+7]*yalpha1+buf1[i+7]*yalpha)>>19) + d128[7]];\
((uint8_t*)dest)[0]= c->dstFormat == PIX_FMT_MONOBLACK ? acc : ~acc;\
dest++;\
}
#define YSCALE_YUV_2_MONOX_C \
const uint8_t * const d128=dither_8x8_220[y&7];\
uint8_t *g= c->table_gU[128] + c->table_gV[128];\
int acc=0;\
for (i=0; i<dstW-1; i+=2) {\
int j;\
int Y1=1<<18;\
int Y2=1<<18;\
\
for (j=0; j<lumFilterSize; j++) {\
Y1 += lumSrc[j][i] * lumFilter[j];\
Y2 += lumSrc[j][i+1] * lumFilter[j];\
}\
Y1>>=19;\
Y2>>=19;\
if ((Y1|Y2)&256) {\
if (Y1>255) Y1=255;\
else if (Y1<0)Y1=0;\
if (Y2>255) Y2=255;\
else if (Y2<0)Y2=0;\
}\
acc+= acc + g[Y1+d128[(i+0)&7]];\
acc+= acc + g[Y2+d128[(i+1)&7]];\
if ((i&7)==6) {\
((uint8_t*)dest)[0]= c->dstFormat == PIX_FMT_MONOBLACK ? acc : ~acc;\
dest++;\
}\
}
#define YSCALE_YUV_2_ANYRGB_C(func, func2, func_g16, func_monoblack)\
switch(c->dstFormat) {\
case PIX_FMT_RGB48BE:\
case PIX_FMT_RGB48LE:\
func(uint8_t,0)\
((uint8_t*)dest)[ 0]= r[Y1];\
((uint8_t*)dest)[ 1]= r[Y1];\
((uint8_t*)dest)[ 2]= g[Y1];\
((uint8_t*)dest)[ 3]= g[Y1];\
((uint8_t*)dest)[ 4]= b[Y1];\
((uint8_t*)dest)[ 5]= b[Y1];\
((uint8_t*)dest)[ 6]= r[Y2];\
((uint8_t*)dest)[ 7]= r[Y2];\
((uint8_t*)dest)[ 8]= g[Y2];\
((uint8_t*)dest)[ 9]= g[Y2];\
((uint8_t*)dest)[10]= b[Y2];\
((uint8_t*)dest)[11]= b[Y2];\
dest+=12;\
}\
break;\
case PIX_FMT_BGR48BE:\
case PIX_FMT_BGR48LE:\
func(uint8_t,0)\
((uint8_t*)dest)[ 0] = ((uint8_t*)dest)[ 1] = b[Y1];\
((uint8_t*)dest)[ 2] = ((uint8_t*)dest)[ 3] = g[Y1];\
((uint8_t*)dest)[ 4] = ((uint8_t*)dest)[ 5] = r[Y1];\
((uint8_t*)dest)[ 6] = ((uint8_t*)dest)[ 7] = b[Y2];\
((uint8_t*)dest)[ 8] = ((uint8_t*)dest)[ 9] = g[Y2];\
((uint8_t*)dest)[10] = ((uint8_t*)dest)[11] = r[Y2];\
dest+=12;\
}\
break;\
case PIX_FMT_RGBA:\
case PIX_FMT_BGRA:\
if (CONFIG_SMALL) {\
int needAlpha = CONFIG_SWSCALE_ALPHA && c->alpPixBuf;\
func(uint32_t,needAlpha)\
((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1] + (needAlpha ? (A1<<24) : 0);\
((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2] + (needAlpha ? (A2<<24) : 0);\
}\
} else {\
if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf) {\
func(uint32_t,1)\
((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1] + (A1<<24);\
((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2] + (A2<<24);\
}\
} else {\
func(uint32_t,0)\
((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1];\
((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2];\
}\
}\
}\
break;\
case PIX_FMT_ARGB:\
case PIX_FMT_ABGR:\
if (CONFIG_SMALL) {\
int needAlpha = CONFIG_SWSCALE_ALPHA && c->alpPixBuf;\
func(uint32_t,needAlpha)\
((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1] + (needAlpha ? A1 : 0);\
((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2] + (needAlpha ? A2 : 0);\
}\
} else {\
if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf) {\
func(uint32_t,1)\
((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1] + A1;\
((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2] + A2;\
}\
} else {\
func(uint32_t,0)\
((uint32_t*)dest)[i2+0]= r[Y1] + g[Y1] + b[Y1];\
((uint32_t*)dest)[i2+1]= r[Y2] + g[Y2] + b[Y2];\
}\
}\
} \
break;\
case PIX_FMT_RGB24:\
func(uint8_t,0)\
((uint8_t*)dest)[0]= r[Y1];\
((uint8_t*)dest)[1]= g[Y1];\
((uint8_t*)dest)[2]= b[Y1];\
((uint8_t*)dest)[3]= r[Y2];\
((uint8_t*)dest)[4]= g[Y2];\
((uint8_t*)dest)[5]= b[Y2];\
dest+=6;\
}\
break;\
case PIX_FMT_BGR24:\
func(uint8_t,0)\
((uint8_t*)dest)[0]= b[Y1];\
((uint8_t*)dest)[1]= g[Y1];\
((uint8_t*)dest)[2]= r[Y1];\
((uint8_t*)dest)[3]= b[Y2];\
((uint8_t*)dest)[4]= g[Y2];\
((uint8_t*)dest)[5]= r[Y2];\
dest+=6;\
}\
break;\
case PIX_FMT_RGB565BE:\
case PIX_FMT_RGB565LE:\
case PIX_FMT_BGR565BE:\
case PIX_FMT_BGR565LE:\
{\
const int dr1= dither_2x2_8[y&1 ][0];\
const int dg1= dither_2x2_4[y&1 ][0];\
const int db1= dither_2x2_8[(y&1)^1][0];\
const int dr2= dither_2x2_8[y&1 ][1];\
const int dg2= dither_2x2_4[y&1 ][1];\
const int db2= dither_2x2_8[(y&1)^1][1];\
func(uint16_t,0)\
((uint16_t*)dest)[i2+0]= r[Y1+dr1] + g[Y1+dg1] + b[Y1+db1];\
((uint16_t*)dest)[i2+1]= r[Y2+dr2] + g[Y2+dg2] + b[Y2+db2];\
}\
}\
break;\
case PIX_FMT_RGB555BE:\
case PIX_FMT_RGB555LE:\
case PIX_FMT_BGR555BE:\
case PIX_FMT_BGR555LE:\
{\
const int dr1= dither_2x2_8[y&1 ][0];\
const int dg1= dither_2x2_8[y&1 ][1];\
const int db1= dither_2x2_8[(y&1)^1][0];\
const int dr2= dither_2x2_8[y&1 ][1];\
const int dg2= dither_2x2_8[y&1 ][0];\
const int db2= dither_2x2_8[(y&1)^1][1];\
func(uint16_t,0)\
((uint16_t*)dest)[i2+0]= r[Y1+dr1] + g[Y1+dg1] + b[Y1+db1];\
((uint16_t*)dest)[i2+1]= r[Y2+dr2] + g[Y2+dg2] + b[Y2+db2];\
}\
}\
break;\
case PIX_FMT_RGB444BE:\
case PIX_FMT_RGB444LE:\
case PIX_FMT_BGR444BE:\
case PIX_FMT_BGR444LE:\
{\
const int dr1= dither_4x4_16[y&3 ][0];\
const int dg1= dither_4x4_16[y&3 ][1];\
const int db1= dither_4x4_16[(y&3)^3][0];\
const int dr2= dither_4x4_16[y&3 ][1];\
const int dg2= dither_4x4_16[y&3 ][0];\
const int db2= dither_4x4_16[(y&3)^3][1];\
func(uint16_t,0)\
((uint16_t*)dest)[i2+0]= r[Y1+dr1] + g[Y1+dg1] + b[Y1+db1];\
((uint16_t*)dest)[i2+1]= r[Y2+dr2] + g[Y2+dg2] + b[Y2+db2];\
}\
}\
break;\
case PIX_FMT_RGB8:\
case PIX_FMT_BGR8:\
{\
const uint8_t * const d64= dither_8x8_73[y&7];\
const uint8_t * const d32= dither_8x8_32[y&7];\
func(uint8_t,0)\
((uint8_t*)dest)[i2+0]= r[Y1+d32[(i2+0)&7]] + g[Y1+d32[(i2+0)&7]] + b[Y1+d64[(i2+0)&7]];\
((uint8_t*)dest)[i2+1]= r[Y2+d32[(i2+1)&7]] + g[Y2+d32[(i2+1)&7]] + b[Y2+d64[(i2+1)&7]];\
}\
}\
break;\
case PIX_FMT_RGB4:\
case PIX_FMT_BGR4:\
{\
const uint8_t * const d64= dither_8x8_73 [y&7];\
const uint8_t * const d128=dither_8x8_220[y&7];\
func(uint8_t,0)\
((uint8_t*)dest)[i]= r[Y1+d128[(i2+0)&7]] + g[Y1+d64[(i2+0)&7]] + b[Y1+d128[(i2+0)&7]]\
+ ((r[Y2+d128[(i2+1)&7]] + g[Y2+d64[(i2+1)&7]] + b[Y2+d128[(i2+1)&7]])<<4);\
}\
}\
break;\
case PIX_FMT_RGB4_BYTE:\
case PIX_FMT_BGR4_BYTE:\
{\
const uint8_t * const d64= dither_8x8_73 [y&7];\
const uint8_t * const d128=dither_8x8_220[y&7];\
func(uint8_t,0)\
((uint8_t*)dest)[i2+0]= r[Y1+d128[(i2+0)&7]] + g[Y1+d64[(i2+0)&7]] + b[Y1+d128[(i2+0)&7]];\
((uint8_t*)dest)[i2+1]= r[Y2+d128[(i2+1)&7]] + g[Y2+d64[(i2+1)&7]] + b[Y2+d128[(i2+1)&7]];\
}\
}\
break;\
case PIX_FMT_MONOBLACK:\
case PIX_FMT_MONOWHITE:\
{\
func_monoblack\
}\
break;\
case PIX_FMT_YUYV422:\
func2\
((uint8_t*)dest)[2*i2+0]= Y1;\
((uint8_t*)dest)[2*i2+1]= U;\
((uint8_t*)dest)[2*i2+2]= Y2;\
((uint8_t*)dest)[2*i2+3]= V;\
} \
break;\
case PIX_FMT_UYVY422:\
func2\
((uint8_t*)dest)[2*i2+0]= U;\
((uint8_t*)dest)[2*i2+1]= Y1;\
((uint8_t*)dest)[2*i2+2]= V;\
((uint8_t*)dest)[2*i2+3]= Y2;\
} \
break;\
case PIX_FMT_GRAY16BE:\
func_g16\
((uint8_t*)dest)[2*i2+0]= Y1>>8;\
((uint8_t*)dest)[2*i2+1]= Y1;\
((uint8_t*)dest)[2*i2+2]= Y2>>8;\
((uint8_t*)dest)[2*i2+3]= Y2;\
} \
break;\
case PIX_FMT_GRAY16LE:\
func_g16\
((uint8_t*)dest)[2*i2+0]= Y1;\
((uint8_t*)dest)[2*i2+1]= Y1>>8;\
((uint8_t*)dest)[2*i2+2]= Y2;\
((uint8_t*)dest)[2*i2+3]= Y2>>8;\
} \
break;\
}
static inline void yuv2packedXinC(SwsContext *c, const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,
const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize,
const int16_t **alpSrc, uint8_t *dest, int dstW, int y)
{
int i;
YSCALE_YUV_2_ANYRGB_C(YSCALE_YUV_2_RGBX_C, YSCALE_YUV_2_PACKEDX_C(void,0), YSCALE_YUV_2_GRAY16_C, YSCALE_YUV_2_MONOX_C)
}
static inline void yuv2rgbXinC_full(SwsContext *c, const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,
const int16_t *chrFilter, const int16_t **chrSrc, int chrFilterSize,
const int16_t **alpSrc, uint8_t *dest, int dstW, int y)
{
int i;
int step= c->dstFormatBpp/8;
int aidx= 3;
switch(c->dstFormat) {
case PIX_FMT_ARGB:
dest++;
aidx= 0;
case PIX_FMT_RGB24:
aidx--;
case PIX_FMT_RGBA:
if (CONFIG_SMALL) {
int needAlpha = CONFIG_SWSCALE_ALPHA && c->alpPixBuf;
YSCALE_YUV_2_RGBX_FULL_C(1<<21, needAlpha)
dest[aidx]= needAlpha ? A : 255;
dest[0]= R>>22;
dest[1]= G>>22;
dest[2]= B>>22;
dest+= step;
}
} else {
if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf) {
YSCALE_YUV_2_RGBX_FULL_C(1<<21, 1)
dest[aidx]= A;
dest[0]= R>>22;
dest[1]= G>>22;
dest[2]= B>>22;
dest+= step;
}
} else {
YSCALE_YUV_2_RGBX_FULL_C(1<<21, 0)
dest[aidx]= 255;
dest[0]= R>>22;
dest[1]= G>>22;
dest[2]= B>>22;
dest+= step;
}
}
}
break;
case PIX_FMT_ABGR:
dest++;
aidx= 0;
case PIX_FMT_BGR24:
aidx--;
case PIX_FMT_BGRA:
if (CONFIG_SMALL) {
int needAlpha = CONFIG_SWSCALE_ALPHA && c->alpPixBuf;
YSCALE_YUV_2_RGBX_FULL_C(1<<21, needAlpha)
dest[aidx]= needAlpha ? A : 255;
dest[0]= B>>22;
dest[1]= G>>22;
dest[2]= R>>22;
dest+= step;
}
} else {
if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf) {
YSCALE_YUV_2_RGBX_FULL_C(1<<21, 1)
dest[aidx]= A;
dest[0]= B>>22;
dest[1]= G>>22;
dest[2]= R>>22;
dest+= step;
}
} else {
YSCALE_YUV_2_RGBX_FULL_C(1<<21, 0)
dest[aidx]= 255;
dest[0]= B>>22;
dest[1]= G>>22;
dest[2]= R>>22;
dest+= step;
}
}
}
break;
default:
assert(0);
}
}
static void fillPlane(uint8_t* plane, int stride, int width, int height, int y, uint8_t val)
{
int i;
uint8_t *ptr = plane + stride*y;
for (i=0; i<height; i++) {
memset(ptr, val, width);
ptr += stride;
}
}
static inline void rgb48ToY(uint8_t *dst, const uint8_t *src, long width,
uint32_t *unused)
{
int i;
for (i = 0; i < width; i++) {
int r = src[i*6+0];
int g = src[i*6+2];
int b = src[i*6+4];
dst[i] = (RY*r + GY*g + BY*b + (33<<(RGB2YUV_SHIFT-1))) >> RGB2YUV_SHIFT;
}
}
static inline void rgb48ToUV(uint8_t *dstU, uint8_t *dstV,
const uint8_t *src1, const uint8_t *src2,
long width, uint32_t *unused)
{
int i;
assert(src1==src2);
for (i = 0; i < width; i++) {
int r = src1[6*i + 0];
int g = src1[6*i + 2];
int b = src1[6*i + 4];
dstU[i] = (RU*r + GU*g + BU*b + (257<<(RGB2YUV_SHIFT-1))) >> RGB2YUV_SHIFT;
dstV[i] = (RV*r + GV*g + BV*b + (257<<(RGB2YUV_SHIFT-1))) >> RGB2YUV_SHIFT;
}
}
static inline void rgb48ToUV_half(uint8_t *dstU, uint8_t *dstV,
const uint8_t *src1, const uint8_t *src2,
long width, uint32_t *unused)
{
int i;
assert(src1==src2);
for (i = 0; i < width; i++) {
int r= src1[12*i + 0] + src1[12*i + 6];
int g= src1[12*i + 2] + src1[12*i + 8];
int b= src1[12*i + 4] + src1[12*i + 10];
dstU[i]= (RU*r + GU*g + BU*b + (257<<RGB2YUV_SHIFT)) >> (RGB2YUV_SHIFT+1);
dstV[i]= (RV*r + GV*g + BV*b + (257<<RGB2YUV_SHIFT)) >> (RGB2YUV_SHIFT+1);
}
}
static inline void bgr48ToY(uint8_t *dst, const uint8_t *src, long width,
uint32_t *unused)
{
int i;
for (i = 0; i < width; i++) {
int b = src[i*6+0];
int g = src[i*6+2];
int r = src[i*6+4];
dst[i] = (RY*r + GY*g + BY*b + (33<<(RGB2YUV_SHIFT-1))) >> RGB2YUV_SHIFT;
}
}
static inline void bgr48ToUV(uint8_t *dstU, uint8_t *dstV,
const uint8_t *src1, const uint8_t *src2,
long width, uint32_t *unused)
{
int i;
for (i = 0; i < width; i++) {
int b = src1[6*i + 0];
int g = src1[6*i + 2];
int r = src1[6*i + 4];
dstU[i] = (RU*r + GU*g + BU*b + (257<<(RGB2YUV_SHIFT-1))) >> RGB2YUV_SHIFT;
dstV[i] = (RV*r + GV*g + BV*b + (257<<(RGB2YUV_SHIFT-1))) >> RGB2YUV_SHIFT;
}
}
static inline void bgr48ToUV_half(uint8_t *dstU, uint8_t *dstV,
const uint8_t *src1, const uint8_t *src2,
long width, uint32_t *unused)
{
int i;
for (i = 0; i < width; i++) {
int b= src1[12*i + 0] + src1[12*i + 6];
int g= src1[12*i + 2] + src1[12*i + 8];
int r= src1[12*i + 4] + src1[12*i + 10];
dstU[i]= (RU*r + GU*g + BU*b + (257<<RGB2YUV_SHIFT)) >> (RGB2YUV_SHIFT+1);
dstV[i]= (RV*r + GV*g + BV*b + (257<<RGB2YUV_SHIFT)) >> (RGB2YUV_SHIFT+1);
}
}
#define BGR2Y(type, name, shr, shg, shb, maskr, maskg, maskb, RY, GY, BY, S)\
static inline void name(uint8_t *dst, const uint8_t *src, long width, uint32_t *unused)\
{\
int i;\
for (i=0; i<width; i++) {\
int b= (((const type*)src)[i]>>shb)&maskb;\
int g= (((const type*)src)[i]>>shg)&maskg;\
int r= (((const type*)src)[i]>>shr)&maskr;\
\
dst[i]= (((RY)*r + (GY)*g + (BY)*b + (33<<((S)-1)))>>(S));\
}\
}
BGR2Y(uint32_t, bgr32ToY,16, 0, 0, 0x00FF, 0xFF00, 0x00FF, RY<< 8, GY , BY<< 8, RGB2YUV_SHIFT+8)
BGR2Y(uint32_t,bgr321ToY,16,16, 0, 0xFF00, 0x00FF, 0xFF00, RY , GY<<8, BY , RGB2YUV_SHIFT+8)
BGR2Y(uint32_t, rgb32ToY, 0, 0,16, 0x00FF, 0xFF00, 0x00FF, RY<< 8, GY , BY<< 8, RGB2YUV_SHIFT+8)
BGR2Y(uint32_t,rgb321ToY, 0,16,16, 0xFF00, 0x00FF, 0xFF00, RY , GY<<8, BY , RGB2YUV_SHIFT+8)
BGR2Y(uint16_t, bgr16ToY, 0, 0, 0, 0x001F, 0x07E0, 0xF800, RY<<11, GY<<5, BY , RGB2YUV_SHIFT+8)
BGR2Y(uint16_t, bgr15ToY, 0, 0, 0, 0x001F, 0x03E0, 0x7C00, RY<<10, GY<<5, BY , RGB2YUV_SHIFT+7)
BGR2Y(uint16_t, rgb16ToY, 0, 0, 0, 0xF800, 0x07E0, 0x001F, RY , GY<<5, BY<<11, RGB2YUV_SHIFT+8)
BGR2Y(uint16_t, rgb15ToY, 0, 0, 0, 0x7C00, 0x03E0, 0x001F, RY , GY<<5, BY<<10, RGB2YUV_SHIFT+7)
static inline void abgrToA(uint8_t *dst, const uint8_t *src, long width, uint32_t *unused)
{
int i;
for (i=0; i<width; i++) {
dst[i]= src[4*i];
}
}
#define BGR2UV(type, name, shr, shg, shb, shp, maskr, maskg, maskb, RU, GU, BU, RV, GV, BV, S) \
static inline void name(uint8_t *dstU, uint8_t *dstV, const uint8_t *src, const uint8_t *dummy, long width, uint32_t *unused)\
{\
int i;\
for (i=0; i<width; i++) {\
int b= ((((const type*)src)[i]>>shp)&maskb)>>shb;\
int g= ((((const type*)src)[i]>>shp)&maskg)>>shg;\
int r= ((((const type*)src)[i]>>shp)&maskr)>>shr;\
\
dstU[i]= ((RU)*r + (GU)*g + (BU)*b + (257<<((S)-1)))>>(S);\
dstV[i]= ((RV)*r + (GV)*g + (BV)*b + (257<<((S)-1)))>>(S);\
}\
}\
static inline void name ## _half(uint8_t *dstU, uint8_t *dstV, const uint8_t *src, const uint8_t *dummy, long width, uint32_t *unused)\
{\
int i;\
for (i=0; i<width; i++) {\
int pix0= ((const type*)src)[2*i+0]>>shp;\
int pix1= ((const type*)src)[2*i+1]>>shp;\
int g= (pix0&~(maskr|maskb))+(pix1&~(maskr|maskb));\
int b= ((pix0+pix1-g)&(maskb|(2*maskb)))>>shb;\
int r= ((pix0+pix1-g)&(maskr|(2*maskr)))>>shr;\
g&= maskg|(2*maskg);\
\
g>>=shg;\
\
dstU[i]= ((RU)*r + (GU)*g + (BU)*b + (257<<(S)))>>((S)+1);\
dstV[i]= ((RV)*r + (GV)*g + (BV)*b + (257<<(S)))>>((S)+1);\
}\
}
BGR2UV(uint32_t, bgr32ToUV,16, 0, 0, 0, 0xFF0000, 0xFF00, 0x00FF, RU<< 8, GU , BU<< 8, RV<< 8, GV , BV<< 8, RGB2YUV_SHIFT+8)
BGR2UV(uint32_t,bgr321ToUV,16, 0, 0, 8, 0xFF0000, 0xFF00, 0x00FF, RU<< 8, GU , BU<< 8, RV<< 8, GV , BV<< 8, RGB2YUV_SHIFT+8)
BGR2UV(uint32_t, rgb32ToUV, 0, 0,16, 0, 0x00FF, 0xFF00, 0xFF0000, RU<< 8, GU , BU<< 8, RV<< 8, GV , BV<< 8, RGB2YUV_SHIFT+8)
BGR2UV(uint32_t,rgb321ToUV, 0, 0,16, 8, 0x00FF, 0xFF00, 0xFF0000, RU<< 8, GU , BU<< 8, RV<< 8, GV , BV<< 8, RGB2YUV_SHIFT+8)
BGR2UV(uint16_t, bgr16ToUV, 0, 0, 0, 0, 0x001F, 0x07E0, 0xF800, RU<<11, GU<<5, BU , RV<<11, GV<<5, BV , RGB2YUV_SHIFT+8)
BGR2UV(uint16_t, bgr15ToUV, 0, 0, 0, 0, 0x001F, 0x03E0, 0x7C00, RU<<10, GU<<5, BU , RV<<10, GV<<5, BV , RGB2YUV_SHIFT+7)
BGR2UV(uint16_t, rgb16ToUV, 0, 0, 0, 0, 0xF800, 0x07E0, 0x001F, RU , GU<<5, BU<<11, RV , GV<<5, BV<<11, RGB2YUV_SHIFT+8)
BGR2UV(uint16_t, rgb15ToUV, 0, 0, 0, 0, 0x7C00, 0x03E0, 0x001F, RU , GU<<5, BU<<10, RV , GV<<5, BV<<10, RGB2YUV_SHIFT+7)
static inline void palToA(uint8_t *dst, const uint8_t *src, long width, uint32_t *pal)
{
int i;
for (i=0; i<width; i++) {
int d= src[i];
dst[i]= pal[d] >> 24;
}
}
static inline void palToY(uint8_t *dst, const uint8_t *src, long width, uint32_t *pal)
{
int i;
for (i=0; i<width; i++) {
int d= src[i];
dst[i]= pal[d] & 0xFF;
}
}
static inline void palToUV(uint8_t *dstU, uint8_t *dstV,
const uint8_t *src1, const uint8_t *src2,
long width, uint32_t *pal)
{
int i;
assert(src1 == src2);
for (i=0; i<width; i++) {
int p= pal[src1[i]];
dstU[i]= p>>8;
dstV[i]= p>>16;
}
}
static inline void monowhite2Y(uint8_t *dst, const uint8_t *src, long width, uint32_t *unused)
{
int i, j;
for (i=0; i<width/8; i++) {
int d= ~src[i];
for(j=0; j<8; j++)
dst[8*i+j]= ((d>>(7-j))&1)*255;
}
}
static inline void monoblack2Y(uint8_t *dst, const uint8_t *src, long width, uint32_t *unused)
{
int i, j;
for (i=0; i<width/8; i++) {
int d= src[i];
for(j=0; j<8; j++)
dst[8*i+j]= ((d>>(7-j))&1)*255;
}
}
//Note: we have C, MMX, MMX2, 3DNOW versions, there is no 3DNOW+MMX2 one
//Plain C versions
#if CONFIG_RUNTIME_CPUDETECT
# define COMPILE_C 1
# if ARCH_X86
# define COMPILE_MMX 1
# define COMPILE_MMX2 1
# define COMPILE_3DNOW 1
# elif ARCH_PPC
# define COMPILE_ALTIVEC HAVE_ALTIVEC
# endif
#else /* CONFIG_RUNTIME_CPUDETECT */
# if ARCH_X86
# if HAVE_MMX2
# define COMPILE_MMX2 1
# elif HAVE_AMD3DNOW
# define COMPILE_3DNOW 1
# elif HAVE_MMX
# define COMPILE_MMX 1
# else
# define COMPILE_C 1
# endif
# elif ARCH_PPC && HAVE_ALTIVEC
# define COMPILE_ALTIVEC 1
# else
# define COMPILE_C 1
# endif
#endif
#ifndef COMPILE_C
# define COMPILE_C 0
#endif
#ifndef COMPILE_MMX
# define COMPILE_MMX 0
#endif
#ifndef COMPILE_MMX2
# define COMPILE_MMX2 0
#endif
#ifndef COMPILE_3DNOW
# define COMPILE_3DNOW 0
#endif
#ifndef COMPILE_ALTIVEC
# define COMPILE_ALTIVEC 0
#endif
#define COMPILE_TEMPLATE_MMX 0
#define COMPILE_TEMPLATE_MMX2 0
#define COMPILE_TEMPLATE_AMD3DNOW 0
#define COMPILE_TEMPLATE_ALTIVEC 0
#if COMPILE_C
#define RENAME(a) a ## _C
#include "swscale_template.c"
#endif
#if COMPILE_ALTIVEC
#undef RENAME
#undef COMPILE_TEMPLATE_ALTIVEC
#define COMPILE_TEMPLATE_ALTIVEC 1
#define RENAME(a) a ## _altivec
#include "swscale_template.c"
#endif
#if ARCH_X86
//MMX versions
#if COMPILE_MMX
#undef RENAME
#undef COMPILE_TEMPLATE_MMX
#undef COMPILE_TEMPLATE_MMX2
#undef COMPILE_TEMPLATE_AMD3DNOW
#define COMPILE_TEMPLATE_MMX 1
#define COMPILE_TEMPLATE_MMX2 0
#define COMPILE_TEMPLATE_AMD3DNOW 0
#define RENAME(a) a ## _MMX
#include "swscale_template.c"
#endif
//MMX2 versions
#if COMPILE_MMX2
#undef RENAME
#undef COMPILE_TEMPLATE_MMX
#undef COMPILE_TEMPLATE_MMX2
#undef COMPILE_TEMPLATE_AMD3DNOW
#define COMPILE_TEMPLATE_MMX 1
#define COMPILE_TEMPLATE_MMX2 1
#define COMPILE_TEMPLATE_AMD3DNOW 0
#define RENAME(a) a ## _MMX2
#include "swscale_template.c"
#endif
//3DNOW versions
#if COMPILE_3DNOW
#undef RENAME
#undef COMPILE_TEMPLATE_MMX
#undef COMPILE_TEMPLATE_MMX2
#undef COMPILE_TEMPLATE_AMD3DNOW
#define COMPILE_TEMPLATE_MMX 1
#define COMPILE_TEMPLATE_MMX2 0
#define COMPILE_TEMPLATE_AMD3DNOW 1
#define RENAME(a) a ## _3DNow
#include "swscale_template.c"
#endif
#endif //ARCH_X86
SwsFunc ff_getSwsFunc(SwsContext *c)
{
#if CONFIG_RUNTIME_CPUDETECT
int flags = c->flags;
#if ARCH_X86
// ordered per speed fastest first
if (flags & SWS_CPU_CAPS_MMX2) {
sws_init_swScale_MMX2(c);
return swScale_MMX2;
} else if (flags & SWS_CPU_CAPS_3DNOW) {
sws_init_swScale_3DNow(c);
return swScale_3DNow;
} else if (flags & SWS_CPU_CAPS_MMX) {
sws_init_swScale_MMX(c);
return swScale_MMX;
} else {
sws_init_swScale_C(c);
return swScale_C;
}
#else
#if COMPILE_ALTIVEC
if (flags & SWS_CPU_CAPS_ALTIVEC) {
sws_init_swScale_altivec(c);
return swScale_altivec;
} else {
sws_init_swScale_C(c);
return swScale_C;
}
#endif
sws_init_swScale_C(c);
return swScale_C;
#endif /* ARCH_X86 */
#else //CONFIG_RUNTIME_CPUDETECT
#if COMPILE_TEMPLATE_MMX2
sws_init_swScale_MMX2(c);
return swScale_MMX2;
#elif COMPILE_TEMPLATE_AMD3DNOW
sws_init_swScale_3DNow(c);
return swScale_3DNow;
#elif COMPILE_TEMPLATE_MMX
sws_init_swScale_MMX(c);
return swScale_MMX;
#elif COMPILE_TEMPLATE_ALTIVEC
sws_init_swScale_altivec(c);
return swScale_altivec;
#else
sws_init_swScale_C(c);
return swScale_C;
#endif
#endif //!CONFIG_RUNTIME_CPUDETECT
}
static void copyPlane(const uint8_t *src, int srcStride,
int srcSliceY, int srcSliceH, int width,
uint8_t *dst, int dstStride)
{
dst += dstStride * srcSliceY;
if (dstStride == srcStride && srcStride > 0) {
memcpy(dst, src, srcSliceH * dstStride);
} else {
int i;
for (i=0; i<srcSliceH; i++) {
memcpy(dst, src, width);
src += srcStride;
dst += dstStride;
}
}
}
static int planarToNv12Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
int srcSliceH, uint8_t* dstParam[], int dstStride[])
{
uint8_t *dst = dstParam[1] + dstStride[1]*srcSliceY/2;
copyPlane(src[0], srcStride[0], srcSliceY, srcSliceH, c->srcW,
dstParam[0], dstStride[0]);
if (c->dstFormat == PIX_FMT_NV12)
interleaveBytes(src[1], src[2], dst, c->srcW/2, srcSliceH/2, srcStride[1], srcStride[2], dstStride[0]);
else
interleaveBytes(src[2], src[1], dst, c->srcW/2, srcSliceH/2, srcStride[2], srcStride[1], dstStride[0]);
return srcSliceH;
}
static int planarToYuy2Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
int srcSliceH, uint8_t* dstParam[], int dstStride[])
{
uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
yv12toyuy2(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0], srcStride[1], dstStride[0]);
return srcSliceH;
}
static int planarToUyvyWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
int srcSliceH, uint8_t* dstParam[], int dstStride[])
{
uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
yv12touyvy(src[0], src[1], src[2], dst, c->srcW, srcSliceH, srcStride[0], srcStride[1], dstStride[0]);
return srcSliceH;
}
static int yuv422pToYuy2Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
int srcSliceH, uint8_t* dstParam[], int dstStride[])
{
uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
yuv422ptoyuy2(src[0],src[1],src[2],dst,c->srcW,srcSliceH,srcStride[0],srcStride[1],dstStride[0]);
return srcSliceH;
}
static int yuv422pToUyvyWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
int srcSliceH, uint8_t* dstParam[], int dstStride[])
{
uint8_t *dst=dstParam[0] + dstStride[0]*srcSliceY;
yuv422ptouyvy(src[0],src[1],src[2],dst,c->srcW,srcSliceH,srcStride[0],srcStride[1],dstStride[0]);
return srcSliceH;
}
static int yuyvToYuv420Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
int srcSliceH, uint8_t* dstParam[], int dstStride[])
{
uint8_t *ydst=dstParam[0] + dstStride[0]*srcSliceY;
uint8_t *udst=dstParam[1] + dstStride[1]*srcSliceY/2;
uint8_t *vdst=dstParam[2] + dstStride[2]*srcSliceY/2;
yuyvtoyuv420(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0]);
if (dstParam[3])
fillPlane(dstParam[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
return srcSliceH;
}
static int yuyvToYuv422Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
int srcSliceH, uint8_t* dstParam[], int dstStride[])
{
uint8_t *ydst=dstParam[0] + dstStride[0]*srcSliceY;
uint8_t *udst=dstParam[1] + dstStride[1]*srcSliceY;
uint8_t *vdst=dstParam[2] + dstStride[2]*srcSliceY;
yuyvtoyuv422(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0]);
return srcSliceH;
}
static int uyvyToYuv420Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
int srcSliceH, uint8_t* dstParam[], int dstStride[])
{
uint8_t *ydst=dstParam[0] + dstStride[0]*srcSliceY;
uint8_t *udst=dstParam[1] + dstStride[1]*srcSliceY/2;
uint8_t *vdst=dstParam[2] + dstStride[2]*srcSliceY/2;
uyvytoyuv420(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0]);
if (dstParam[3])
fillPlane(dstParam[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
return srcSliceH;
}
static int uyvyToYuv422Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
int srcSliceH, uint8_t* dstParam[], int dstStride[])
{
uint8_t *ydst=dstParam[0] + dstStride[0]*srcSliceY;
uint8_t *udst=dstParam[1] + dstStride[1]*srcSliceY;
uint8_t *vdst=dstParam[2] + dstStride[2]*srcSliceY;
uyvytoyuv422(ydst, udst, vdst, src[0], c->srcW, srcSliceH, dstStride[0], dstStride[1], srcStride[0]);
return srcSliceH;
}
static void gray8aToPacked32(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)
{
long i;
for (i=0; i<num_pixels; i++)
((uint32_t *) dst)[i] = ((const uint32_t *)palette)[src[i<<1]] | (src[(i<<1)+1] << 24);
}
static void gray8aToPacked32_1(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)
{
long i;
for (i=0; i<num_pixels; i++)
((uint32_t *) dst)[i] = ((const uint32_t *)palette)[src[i<<1]] | src[(i<<1)+1];
}
static void gray8aToPacked24(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)
{
long i;
for (i=0; i<num_pixels; i++) {
//FIXME slow?
dst[0]= palette[src[i<<1]*4+0];
dst[1]= palette[src[i<<1]*4+1];
dst[2]= palette[src[i<<1]*4+2];
dst+= 3;
}
}
static int palToRgbWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
int srcSliceH, uint8_t* dst[], int dstStride[])
{
const enum PixelFormat srcFormat= c->srcFormat;
const enum PixelFormat dstFormat= c->dstFormat;
void (*conv)(const uint8_t *src, uint8_t *dst, long num_pixels,
const uint8_t *palette)=NULL;
int i;
uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
const uint8_t *srcPtr= src[0];
if (srcFormat == PIX_FMT_GRAY8A) {
switch (dstFormat) {
case PIX_FMT_RGB32 : conv = gray8aToPacked32; break;
case PIX_FMT_BGR32 : conv = gray8aToPacked32; break;
case PIX_FMT_BGR32_1: conv = gray8aToPacked32_1; break;
case PIX_FMT_RGB32_1: conv = gray8aToPacked32_1; break;
case PIX_FMT_RGB24 : conv = gray8aToPacked24; break;
case PIX_FMT_BGR24 : conv = gray8aToPacked24; break;
}
} else if (usePal(srcFormat)) {
switch (dstFormat) {
case PIX_FMT_RGB32 : conv = sws_convertPalette8ToPacked32; break;
case PIX_FMT_BGR32 : conv = sws_convertPalette8ToPacked32; break;
case PIX_FMT_BGR32_1: conv = sws_convertPalette8ToPacked32; break;
case PIX_FMT_RGB32_1: conv = sws_convertPalette8ToPacked32; break;
case PIX_FMT_RGB24 : conv = sws_convertPalette8ToPacked24; break;
case PIX_FMT_BGR24 : conv = sws_convertPalette8ToPacked24; break;
}
}
if (!conv)
av_log(c, AV_LOG_ERROR, "internal error %s -> %s converter\n",
sws_format_name(srcFormat), sws_format_name(dstFormat));
else {
for (i=0; i<srcSliceH; i++) {
conv(srcPtr, dstPtr, c->srcW, (uint8_t *) c->pal_rgb);
srcPtr+= srcStride[0];
dstPtr+= dstStride[0];
}
}
return srcSliceH;
}
#define isRGBA32(x) ( \
(x) == PIX_FMT_ARGB \
|| (x) == PIX_FMT_RGBA \
|| (x) == PIX_FMT_BGRA \
|| (x) == PIX_FMT_ABGR \
)
/* {RGB,BGR}{15,16,24,32,32_1} -> {RGB,BGR}{15,16,24,32} */
static int rgbToRgbWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
int srcSliceH, uint8_t* dst[], int dstStride[])
{
const enum PixelFormat srcFormat= c->srcFormat;
const enum PixelFormat dstFormat= c->dstFormat;
const int srcBpp= (c->srcFormatBpp + 7) >> 3;
const int dstBpp= (c->dstFormatBpp + 7) >> 3;
const int srcId= c->srcFormatBpp >> 2; /* 1:0, 4:1, 8:2, 15:3, 16:4, 24:6, 32:8 */
const int dstId= c->dstFormatBpp >> 2;
void (*conv)(const uint8_t *src, uint8_t *dst, long src_size)=NULL;
#define CONV_IS(src, dst) (srcFormat == PIX_FMT_##src && dstFormat == PIX_FMT_##dst)
if (isRGBA32(srcFormat) && isRGBA32(dstFormat)) {
if ( CONV_IS(ABGR, RGBA)
|| CONV_IS(ARGB, BGRA)
|| CONV_IS(BGRA, ARGB)
|| CONV_IS(RGBA, ABGR)) conv = shuffle_bytes_3210;
else if (CONV_IS(ABGR, ARGB)
|| CONV_IS(ARGB, ABGR)) conv = shuffle_bytes_0321;
else if (CONV_IS(ABGR, BGRA)
|| CONV_IS(ARGB, RGBA)) conv = shuffle_bytes_1230;
else if (CONV_IS(BGRA, RGBA)
|| CONV_IS(RGBA, BGRA)) conv = shuffle_bytes_2103;
else if (CONV_IS(BGRA, ABGR)
|| CONV_IS(RGBA, ARGB)) conv = shuffle_bytes_3012;
} else
/* BGR -> BGR */
if ( (isBGRinInt(srcFormat) && isBGRinInt(dstFormat))
|| (isRGBinInt(srcFormat) && isRGBinInt(dstFormat))) {
switch(srcId | (dstId<<4)) {
case 0x34: conv= rgb16to15; break;
case 0x36: conv= rgb24to15; break;
case 0x38: conv= rgb32to15; break;
case 0x43: conv= rgb15to16; break;
case 0x46: conv= rgb24to16; break;
case 0x48: conv= rgb32to16; break;
case 0x63: conv= rgb15to24; break;
case 0x64: conv= rgb16to24; break;
case 0x68: conv= rgb32to24; break;
case 0x83: conv= rgb15to32; break;
case 0x84: conv= rgb16to32; break;
case 0x86: conv= rgb24to32; break;
}
} else if ( (isBGRinInt(srcFormat) && isRGBinInt(dstFormat))
|| (isRGBinInt(srcFormat) && isBGRinInt(dstFormat))) {
switch(srcId | (dstId<<4)) {
case 0x33: conv= rgb15tobgr15; break;
case 0x34: conv= rgb16tobgr15; break;
case 0x36: conv= rgb24tobgr15; break;
case 0x38: conv= rgb32tobgr15; break;
case 0x43: conv= rgb15tobgr16; break;
case 0x44: conv= rgb16tobgr16; break;
case 0x46: conv= rgb24tobgr16; break;
case 0x48: conv= rgb32tobgr16; break;
case 0x63: conv= rgb15tobgr24; break;
case 0x64: conv= rgb16tobgr24; break;
case 0x66: conv= rgb24tobgr24; break;
case 0x68: conv= rgb32tobgr24; break;
case 0x83: conv= rgb15tobgr32; break;
case 0x84: conv= rgb16tobgr32; break;
case 0x86: conv= rgb24tobgr32; break;
}
}
if (!conv) {
av_log(c, AV_LOG_ERROR, "internal error %s -> %s converter\n",
sws_format_name(srcFormat), sws_format_name(dstFormat));
} else {
const uint8_t *srcPtr= src[0];
uint8_t *dstPtr= dst[0];
if ((srcFormat == PIX_FMT_RGB32_1 || srcFormat == PIX_FMT_BGR32_1) && !isRGBA32(dstFormat))
srcPtr += ALT32_CORR;
if ((dstFormat == PIX_FMT_RGB32_1 || dstFormat == PIX_FMT_BGR32_1) && !isRGBA32(srcFormat))
dstPtr += ALT32_CORR;
if (dstStride[0]*srcBpp == srcStride[0]*dstBpp && srcStride[0] > 0 && !(srcStride[0]%srcBpp))
conv(srcPtr, dstPtr + dstStride[0]*srcSliceY, srcSliceH*srcStride[0]);
else {
int i;
dstPtr += dstStride[0]*srcSliceY;
for (i=0; i<srcSliceH; i++) {
conv(srcPtr, dstPtr, c->srcW*srcBpp);
srcPtr+= srcStride[0];
dstPtr+= dstStride[0];
}
}
}
return srcSliceH;
}
static int bgr24ToYv12Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
int srcSliceH, uint8_t* dst[], int dstStride[])
{
rgb24toyv12(
src[0],
dst[0]+ srcSliceY *dstStride[0],
dst[1]+(srcSliceY>>1)*dstStride[1],
dst[2]+(srcSliceY>>1)*dstStride[2],
c->srcW, srcSliceH,
dstStride[0], dstStride[1], srcStride[0]);
if (dst[3])
fillPlane(dst[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
return srcSliceH;
}
static int yvu9ToYv12Wrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
int srcSliceH, uint8_t* dst[], int dstStride[])
{
copyPlane(src[0], srcStride[0], srcSliceY, srcSliceH, c->srcW,
dst[0], dstStride[0]);
planar2x(src[1], dst[1] + dstStride[1]*(srcSliceY >> 1), c->chrSrcW,
srcSliceH >> 2, srcStride[1], dstStride[1]);
planar2x(src[2], dst[2] + dstStride[2]*(srcSliceY >> 1), c->chrSrcW,
srcSliceH >> 2, srcStride[2], dstStride[2]);
if (dst[3])
fillPlane(dst[3], dstStride[3], c->srcW, srcSliceH, srcSliceY, 255);
return srcSliceH;
}
/* unscaled copy like stuff (assumes nearly identical formats) */
static int packedCopyWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
int srcSliceH, uint8_t* dst[], int dstStride[])
{
if (dstStride[0]==srcStride[0] && srcStride[0] > 0)
memcpy(dst[0] + dstStride[0]*srcSliceY, src[0], srcSliceH*dstStride[0]);
else {
int i;
const uint8_t *srcPtr= src[0];
uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
int length=0;
/* universal length finder */
while(length+c->srcW <= FFABS(dstStride[0])
&& length+c->srcW <= FFABS(srcStride[0])) length+= c->srcW;
assert(length!=0);
for (i=0; i<srcSliceH; i++) {
memcpy(dstPtr, srcPtr, length);
srcPtr+= srcStride[0];
dstPtr+= dstStride[0];
}
}
return srcSliceH;
}
#define DITHER_COPY(dst, dstStride, src, srcStride, bswap)\
uint16_t scale= dither_scale[dst_depth-1][src_depth-1];\
int shift= src_depth-dst_depth + dither_scale[src_depth-2][dst_depth-1];\
for (i = 0; i < height; i++) {\
uint8_t *dither= dithers[src_depth-9][i&7];\
for (j = 0; j < length-7; j+=8){\
dst[j+0] = (bswap(src[j+0]) + dither[0])*scale>>shift;\
dst[j+1] = (bswap(src[j+1]) + dither[1])*scale>>shift;\
dst[j+2] = (bswap(src[j+2]) + dither[2])*scale>>shift;\
dst[j+3] = (bswap(src[j+3]) + dither[3])*scale>>shift;\
dst[j+4] = (bswap(src[j+4]) + dither[4])*scale>>shift;\
dst[j+5] = (bswap(src[j+5]) + dither[5])*scale>>shift;\
dst[j+6] = (bswap(src[j+6]) + dither[6])*scale>>shift;\
dst[j+7] = (bswap(src[j+7]) + dither[7])*scale>>shift;\
}\
for (; j < length; j++)\
dst[j] = (bswap(src[j]) + dither[j&7])*scale>>shift;\
dst += dstStride;\
src += srcStride;\
}
static int planarCopyWrapper(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
int srcSliceH, uint8_t* dst[], int dstStride[])
{
int plane, i, j;
for (plane=0; plane<4; plane++) {
int length= (plane==0 || plane==3) ? c->srcW : -((-c->srcW )>>c->chrDstHSubSample);
int y= (plane==0 || plane==3) ? srcSliceY: -((-srcSliceY)>>c->chrDstVSubSample);
int height= (plane==0 || plane==3) ? srcSliceH: -((-srcSliceH)>>c->chrDstVSubSample);
const uint8_t *srcPtr= src[plane];
uint8_t *dstPtr= dst[plane] + dstStride[plane]*y;
if (!dst[plane]) continue;
// ignore palette for GRAY8
if (plane == 1 && !dst[2]) continue;
if (!src[plane] || (plane == 1 && !src[2])) {
if(is16BPS(c->dstFormat))
length*=2;
fillPlane(dst[plane], dstStride[plane], length, height, y, (plane==3) ? 255 : 128);
} else {
if(isNBPS(c->srcFormat) || isNBPS(c->dstFormat)
|| (is16BPS(c->srcFormat) != is16BPS(c->dstFormat))
) {
const int src_depth = av_pix_fmt_descriptors[c->srcFormat].comp[plane].depth_minus1+1;
const int dst_depth = av_pix_fmt_descriptors[c->dstFormat].comp[plane].depth_minus1+1;
uint16_t *srcPtr2 = (uint16_t*)srcPtr;
uint16_t *dstPtr2 = (uint16_t*)dstPtr;
if (dst_depth == 8) {
if(isBE(c->srcFormat) == HAVE_BIGENDIAN){
DITHER_COPY(dstPtr, dstStride[plane], srcPtr2, srcStride[plane]/2, )
} else {
DITHER_COPY(dstPtr, dstStride[plane], srcPtr2, srcStride[plane]/2, av_bswap16)
}
} else if (src_depth == 8) {
for (i = 0; i < height; i++) {
for (j = 0; j < length; j++)
dstPtr2[j] = (srcPtr[j]<<(dst_depth-8)) |
(srcPtr[j]>>(2*8-dst_depth));
dstPtr2 += dstStride[plane]/2;
srcPtr += srcStride[plane];
}
} else if (src_depth <= dst_depth) {
for (i = 0; i < height; i++) {
if(isBE(c->dstFormat)){
for (j = 0; j < length; j++)
AV_WB16(&dstPtr2[j], (srcPtr2[j]<<(dst_depth-src_depth)) |
(srcPtr2[j]>>(2*src_depth-dst_depth)));
}else{
for (j = 0; j < length; j++)
AV_WL16(&dstPtr2[j], (srcPtr2[j]<<(dst_depth-src_depth)) |
(srcPtr2[j]>>(2*src_depth-dst_depth)));
}
dstPtr2 += dstStride[plane]/2;
srcPtr2 += srcStride[plane]/2;
}
} else {
if(isBE(c->srcFormat) == HAVE_BIGENDIAN){
DITHER_COPY(dstPtr2, dstStride[plane]/2, srcPtr2, srcStride[plane]/2, )
}else{
DITHER_COPY(dstPtr2, dstStride[plane]/2, srcPtr2, srcStride[plane]/2, av_bswap16)
}
}
} else if(is16BPS(c->srcFormat) && is16BPS(c->dstFormat)
&& isBE(c->srcFormat) != isBE(c->dstFormat)) {
for (i=0; i<height; i++) {
for (j=0; j<length; j++)
((uint16_t*)dstPtr)[j] = av_bswap16(((const uint16_t*)srcPtr)[j]);
srcPtr+= srcStride[plane];
dstPtr+= dstStride[plane];
}
} else if (dstStride[plane] == srcStride[plane] &&
srcStride[plane] > 0 && srcStride[plane] == length) {
memcpy(dst[plane] + dstStride[plane]*y, src[plane],
height*dstStride[plane]);
} else {
if(is16BPS(c->srcFormat) && is16BPS(c->dstFormat))
length*=2;
for (i=0; i<height; i++) {
memcpy(dstPtr, srcPtr, length);
srcPtr+= srcStride[plane];
dstPtr+= dstStride[plane];
}
}
}
}
return srcSliceH;
}
int ff_hardcodedcpuflags(void)
{
int flags = 0;
#if COMPILE_TEMPLATE_MMX2
flags |= SWS_CPU_CAPS_MMX|SWS_CPU_CAPS_MMX2;
#elif COMPILE_TEMPLATE_AMD3DNOW
flags |= SWS_CPU_CAPS_MMX|SWS_CPU_CAPS_3DNOW;
#elif COMPILE_TEMPLATE_MMX
flags |= SWS_CPU_CAPS_MMX;
#elif COMPILE_TEMPLATE_ALTIVEC
flags |= SWS_CPU_CAPS_ALTIVEC;
#elif ARCH_BFIN
flags |= SWS_CPU_CAPS_BFIN;
#endif
return flags;
}
void ff_get_unscaled_swscale(SwsContext *c)
{
const enum PixelFormat srcFormat = c->srcFormat;
const enum PixelFormat dstFormat = c->dstFormat;
const int flags = c->flags;
const int dstH = c->dstH;
int needsDither;
needsDither= isAnyRGB(dstFormat)
&& c->dstFormatBpp < 24
&& (c->dstFormatBpp < c->srcFormatBpp || (!isAnyRGB(srcFormat)));
/* yv12_to_nv12 */
if ((srcFormat == PIX_FMT_YUV420P || srcFormat == PIX_FMT_YUVA420P) && (dstFormat == PIX_FMT_NV12 || dstFormat == PIX_FMT_NV21)) {
c->swScale= planarToNv12Wrapper;
}
/* yuv2bgr */
if ((srcFormat==PIX_FMT_YUV420P || srcFormat==PIX_FMT_YUV422P || srcFormat==PIX_FMT_YUVA420P) && isAnyRGB(dstFormat)
&& !(flags & SWS_ACCURATE_RND) && !(dstH&1)) {
c->swScale= ff_yuv2rgb_get_func_ptr(c);
}
if (srcFormat==PIX_FMT_YUV410P && (dstFormat==PIX_FMT_YUV420P || dstFormat==PIX_FMT_YUVA420P) && !(flags & SWS_BITEXACT)) {
c->swScale= yvu9ToYv12Wrapper;
}
/* bgr24toYV12 */
if (srcFormat==PIX_FMT_BGR24 && (dstFormat==PIX_FMT_YUV420P || dstFormat==PIX_FMT_YUVA420P) && !(flags & SWS_ACCURATE_RND))
c->swScale= bgr24ToYv12Wrapper;
/* RGB/BGR -> RGB/BGR (no dither needed forms) */
if ( isAnyRGB(srcFormat)
&& isAnyRGB(dstFormat)
&& srcFormat != PIX_FMT_BGR8 && dstFormat != PIX_FMT_BGR8
&& srcFormat != PIX_FMT_RGB8 && dstFormat != PIX_FMT_RGB8
&& srcFormat != PIX_FMT_BGR4 && dstFormat != PIX_FMT_BGR4
&& srcFormat != PIX_FMT_RGB4 && dstFormat != PIX_FMT_RGB4
&& srcFormat != PIX_FMT_BGR4_BYTE && dstFormat != PIX_FMT_BGR4_BYTE
&& srcFormat != PIX_FMT_RGB4_BYTE && dstFormat != PIX_FMT_RGB4_BYTE
&& srcFormat != PIX_FMT_MONOBLACK && dstFormat != PIX_FMT_MONOBLACK
&& srcFormat != PIX_FMT_MONOWHITE && dstFormat != PIX_FMT_MONOWHITE
&& srcFormat != PIX_FMT_RGB48LE && dstFormat != PIX_FMT_RGB48LE
&& srcFormat != PIX_FMT_RGB48BE && dstFormat != PIX_FMT_RGB48BE
&& srcFormat != PIX_FMT_BGR48LE && dstFormat != PIX_FMT_BGR48LE
&& srcFormat != PIX_FMT_BGR48BE && dstFormat != PIX_FMT_BGR48BE
&& (!needsDither || (c->flags&(SWS_FAST_BILINEAR|SWS_POINT))))
c->swScale= rgbToRgbWrapper;
if ((usePal(srcFormat) && (
dstFormat == PIX_FMT_RGB32 ||
dstFormat == PIX_FMT_RGB32_1 ||
dstFormat == PIX_FMT_RGB24 ||
dstFormat == PIX_FMT_BGR32 ||
dstFormat == PIX_FMT_BGR32_1 ||
dstFormat == PIX_FMT_BGR24)))
c->swScale= palToRgbWrapper;
if (srcFormat == PIX_FMT_YUV422P) {
if (dstFormat == PIX_FMT_YUYV422)
c->swScale= yuv422pToYuy2Wrapper;
else if (dstFormat == PIX_FMT_UYVY422)
c->swScale= yuv422pToUyvyWrapper;
}
/* LQ converters if -sws 0 or -sws 4*/
if (c->flags&(SWS_FAST_BILINEAR|SWS_POINT)) {
/* yv12_to_yuy2 */
if (srcFormat == PIX_FMT_YUV420P || srcFormat == PIX_FMT_YUVA420P) {
if (dstFormat == PIX_FMT_YUYV422)
c->swScale= planarToYuy2Wrapper;
else if (dstFormat == PIX_FMT_UYVY422)
c->swScale= planarToUyvyWrapper;
}
}
if(srcFormat == PIX_FMT_YUYV422 && (dstFormat == PIX_FMT_YUV420P || dstFormat == PIX_FMT_YUVA420P))
c->swScale= yuyvToYuv420Wrapper;
if(srcFormat == PIX_FMT_UYVY422 && (dstFormat == PIX_FMT_YUV420P || dstFormat == PIX_FMT_YUVA420P))
c->swScale= uyvyToYuv420Wrapper;
if(srcFormat == PIX_FMT_YUYV422 && dstFormat == PIX_FMT_YUV422P)
c->swScale= yuyvToYuv422Wrapper;
if(srcFormat == PIX_FMT_UYVY422 && dstFormat == PIX_FMT_YUV422P)
c->swScale= uyvyToYuv422Wrapper;
#if COMPILE_ALTIVEC
if ((c->flags & SWS_CPU_CAPS_ALTIVEC) &&
!(c->flags & SWS_BITEXACT) &&
srcFormat == PIX_FMT_YUV420P) {
// unscaled YV12 -> packed YUV, we want speed
if (dstFormat == PIX_FMT_YUYV422)
c->swScale= yv12toyuy2_unscaled_altivec;
else if (dstFormat == PIX_FMT_UYVY422)
c->swScale= yv12touyvy_unscaled_altivec;
}
#endif
/* simple copy */
if ( srcFormat == dstFormat
|| (srcFormat == PIX_FMT_YUVA420P && dstFormat == PIX_FMT_YUV420P)
|| (srcFormat == PIX_FMT_YUV420P && dstFormat == PIX_FMT_YUVA420P)
|| (isPlanarYUV(srcFormat) && isGray(dstFormat))
|| (isPlanarYUV(dstFormat) && isGray(srcFormat))
|| (isGray(dstFormat) && isGray(srcFormat))
|| (isPlanarYUV(srcFormat) && isPlanarYUV(dstFormat)
&& c->chrDstHSubSample == c->chrSrcHSubSample
&& c->chrDstVSubSample == c->chrSrcVSubSample
&& dstFormat != PIX_FMT_NV12 && dstFormat != PIX_FMT_NV21
&& srcFormat != PIX_FMT_NV12 && srcFormat != PIX_FMT_NV21))
{
if (isPacked(c->srcFormat))
c->swScale= packedCopyWrapper;
else /* Planar YUV or gray */
c->swScale= planarCopyWrapper;
}
#if ARCH_BFIN
if (flags & SWS_CPU_CAPS_BFIN)
ff_bfin_get_unscaled_swscale (c);
#endif
}
static void reset_ptr(const uint8_t* src[], int format)
{
if(!isALPHA(format))
src[3]=NULL;
if(!isPlanarYUV(format)) {
src[3]=src[2]=NULL;
if (!usePal(format))
src[1]= NULL;
}
}
static int check_image_pointers(uint8_t *data[4], enum PixelFormat pix_fmt,
const int linesizes[4])
{
const AVPixFmtDescriptor *desc = &av_pix_fmt_descriptors[pix_fmt];
int i;
for (i = 0; i < 4; i++) {
int plane = desc->comp[i].plane;
if (!data[plane] || !linesizes[plane])
return 0;
}
return 1;
}
/**
* swscale wrapper, so we don't need to export the SwsContext.
* Assumes planar YUV to be in YUV order instead of YVU.
*/
int sws_scale(SwsContext *c, const uint8_t* const src[], const int srcStride[], int srcSliceY,
int srcSliceH, uint8_t* const dst[], const int dstStride[])
{
int i;
const uint8_t* src2[4]= {src[0], src[1], src[2], src[3]};
uint8_t* dst2[4]= {dst[0], dst[1], dst[2], dst[3]};
// do not mess up sliceDir if we have a "trailing" 0-size slice
if (srcSliceH == 0)
return 0;
if (!check_image_pointers(src, c->srcFormat, srcStride)) {
av_log(c, AV_LOG_ERROR, "bad src image pointers\n");
return 0;
}
if (!check_image_pointers(dst, c->dstFormat, dstStride)) {
av_log(c, AV_LOG_ERROR, "bad dst image pointers\n");
return 0;
}
if (c->sliceDir == 0 && srcSliceY != 0 && srcSliceY + srcSliceH != c->srcH) {
av_log(c, AV_LOG_ERROR, "Slices start in the middle!\n");
return 0;
}
if (c->sliceDir == 0) {
if (srcSliceY == 0) c->sliceDir = 1; else c->sliceDir = -1;
}
if (usePal(c->srcFormat)) {
for (i=0; i<256; i++) {
int p, r, g, b, y, u, v, a = 0xff;
if(c->srcFormat == PIX_FMT_PAL8) {
p=((const uint32_t*)(src[1]))[i];
a= (p>>24)&0xFF;
r= (p>>16)&0xFF;
g= (p>> 8)&0xFF;
b= p &0xFF;
} else if(c->srcFormat == PIX_FMT_RGB8) {
r= (i>>5 )*36;
g= ((i>>2)&7)*36;
b= (i&3 )*85;
} else if(c->srcFormat == PIX_FMT_BGR8) {
b= (i>>6 )*85;
g= ((i>>3)&7)*36;
r= (i&7 )*36;
} else if(c->srcFormat == PIX_FMT_RGB4_BYTE) {
r= (i>>3 )*255;
g= ((i>>1)&3)*85;
b= (i&1 )*255;
} else if(c->srcFormat == PIX_FMT_GRAY8 || c->srcFormat == PIX_FMT_GRAY8A) {
r = g = b = i;
} else {
assert(c->srcFormat == PIX_FMT_BGR4_BYTE);
b= (i>>3 )*255;
g= ((i>>1)&3)*85;
r= (i&1 )*255;
}
y= av_clip_uint8((RY*r + GY*g + BY*b + ( 33<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT);
u= av_clip_uint8((RU*r + GU*g + BU*b + (257<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT);
v= av_clip_uint8((RV*r + GV*g + BV*b + (257<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT);
c->pal_yuv[i]= y + (u<<8) + (v<<16) + (a<<24);
switch(c->dstFormat) {
case PIX_FMT_BGR32:
#if !HAVE_BIGENDIAN
case PIX_FMT_RGB24:
#endif
c->pal_rgb[i]= r + (g<<8) + (b<<16) + (a<<24);
break;
case PIX_FMT_BGR32_1:
#if HAVE_BIGENDIAN
case PIX_FMT_BGR24:
#endif
c->pal_rgb[i]= a + (r<<8) + (g<<16) + (b<<24);
break;
case PIX_FMT_RGB32_1:
#if HAVE_BIGENDIAN
case PIX_FMT_RGB24:
#endif
c->pal_rgb[i]= a + (b<<8) + (g<<16) + (r<<24);
break;
case PIX_FMT_RGB32:
#if !HAVE_BIGENDIAN
case PIX_FMT_BGR24:
#endif
default:
c->pal_rgb[i]= b + (g<<8) + (r<<16) + (a<<24);
}
}
}
// copy strides, so they can safely be modified
if (c->sliceDir == 1) {
// slices go from top to bottom
int srcStride2[4]= {srcStride[0], srcStride[1], srcStride[2], srcStride[3]};
int dstStride2[4]= {dstStride[0], dstStride[1], dstStride[2], dstStride[3]};
reset_ptr(src2, c->srcFormat);
reset_ptr((const uint8_t**)dst2, c->dstFormat);
/* reset slice direction at end of frame */
if (srcSliceY + srcSliceH == c->srcH)
c->sliceDir = 0;
return c->swScale(c, src2, srcStride2, srcSliceY, srcSliceH, dst2, dstStride2);
} else {
// slices go from bottom to top => we flip the image internally
int srcStride2[4]= {-srcStride[0], -srcStride[1], -srcStride[2], -srcStride[3]};
int dstStride2[4]= {-dstStride[0], -dstStride[1], -dstStride[2], -dstStride[3]};
src2[0] += (srcSliceH-1)*srcStride[0];
if (!usePal(c->srcFormat))
src2[1] += ((srcSliceH>>c->chrSrcVSubSample)-1)*srcStride[1];
src2[2] += ((srcSliceH>>c->chrSrcVSubSample)-1)*srcStride[2];
src2[3] += (srcSliceH-1)*srcStride[3];
dst2[0] += ( c->dstH -1)*dstStride[0];
dst2[1] += ((c->dstH>>c->chrDstVSubSample)-1)*dstStride[1];
dst2[2] += ((c->dstH>>c->chrDstVSubSample)-1)*dstStride[2];
dst2[3] += ( c->dstH -1)*dstStride[3];
reset_ptr(src2, c->srcFormat);
reset_ptr((const uint8_t**)dst2, c->dstFormat);
/* reset slice direction at end of frame */
if (!srcSliceY)
c->sliceDir = 0;
return c->swScale(c, src2, srcStride2, c->srcH-srcSliceY-srcSliceH, srcSliceH, dst2, dstStride2);
}
}
#if LIBSWSCALE_VERSION_MAJOR < 1
int sws_scale_ordered(SwsContext *c, const uint8_t* const src[], int srcStride[], int srcSliceY,
int srcSliceH, uint8_t* dst[], int dstStride[])
{
return sws_scale(c, src, srcStride, srcSliceY, srcSliceH, dst, dstStride);
}
#endif
/* Convert the palette to the same packed 32-bit format as the palette */
void sws_convertPalette8ToPacked32(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)
{
long i;
for (i=0; i<num_pixels; i++)
((uint32_t *) dst)[i] = ((const uint32_t *) palette)[src[i]];
}
/* Palette format: ABCD -> dst format: ABC */
void sws_convertPalette8ToPacked24(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)
{
long i;
for (i=0; i<num_pixels; i++) {
//FIXME slow?
dst[0]= palette[src[i]*4+0];
dst[1]= palette[src[i]*4+1];
dst[2]= palette[src[i]*4+2];
dst+= 3;
}
}
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