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ffmpeg/libswscale/swscale.c

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/*
* Copyright (C) 2001-2003 Michael Niedermayer <michaelni@gmx.at>
*
* This file is part of Libav.
*
* Libav 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.
*
* Libav 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 Libav; 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/cpu.h"
#include "libavutil/avutil.h"
#include "libavutil/mathematics.h"
#include "libavutil/bswap.h"
#include "libavutil/pixdesc.h"
#define DITHER1XBPP
#define isPacked(x) ( \
(x)==PIX_FMT_PAL8 \
|| (x)==PIX_FMT_YUYV422 \
|| (x)==PIX_FMT_UYVY422 \
|| (x)==PIX_FMT_Y400A \
|| 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
*/
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
static av_always_inline void yuv2yuvX16inC_template(const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,
const int16_t *chrFilter, const int16_t **chrUSrc,
const int16_t **chrVSrc, int chrFilterSize,
const int16_t **alpSrc, uint16_t *dest, uint16_t *uDest, uint16_t *vDest, uint16_t *aDest,
int dstW, int chrDstW, int big_endian, int output_bits)
{
//FIXME Optimize (just quickly written not optimized..)
int i;
int shift = 11 + 16 - output_bits;
#define output_pixel(pos, val) \
if (big_endian) { \
if (output_bits == 16) { \
AV_WB16(pos, av_clip_uint16(val >> shift)); \
} else { \
AV_WB16(pos, av_clip_uintp2(val >> shift, output_bits)); \
} \
} else { \
if (output_bits == 16) { \
AV_WL16(pos, av_clip_uint16(val >> shift)); \
} else { \
AV_WL16(pos, av_clip_uintp2(val >> shift, output_bits)); \
} \
}
for (i = 0; i < dstW; i++) {
int val = 1 << (26-output_bits);
int j;
for (j = 0; j < lumFilterSize; j++)
val += lumSrc[j][i] * lumFilter[j];
output_pixel(&dest[i], val);
}
if (uDest) {
for (i = 0; i < chrDstW; i++) {
int u = 1 << (26-output_bits);
int v = 1 << (26-output_bits);
int j;
for (j = 0; j < chrFilterSize; j++) {
u += chrUSrc[j][i] * chrFilter[j];
v += chrVSrc[j][i] * chrFilter[j];
}
output_pixel(&uDest[i], u);
output_pixel(&vDest[i], v);
}
}
if (CONFIG_SWSCALE_ALPHA && aDest) {
for (i = 0; i < dstW; i++) {
int val = 1 << (26-output_bits);
int j;
for (j = 0; j < lumFilterSize; j++)
val += alpSrc[j][i] * lumFilter[j];
output_pixel(&aDest[i], val);
}
}
}
#define yuv2NBPS(bits, BE_LE, is_be) \
static void yuv2yuvX ## bits ## BE_LE ## _c(const int16_t *lumFilter, \
const int16_t **lumSrc, int lumFilterSize, \
const int16_t *chrFilter, const int16_t **chrUSrc, \
const int16_t **chrVSrc, \
int chrFilterSize, const int16_t **alpSrc, \
uint16_t *dest, uint16_t *uDest, uint16_t *vDest, \
uint16_t *aDest, int dstW, int chrDstW) \
{ \
yuv2yuvX16inC_template(lumFilter, lumSrc, lumFilterSize, \
chrFilter, chrUSrc, chrVSrc, chrFilterSize, \
alpSrc, \
dest, uDest, vDest, aDest, \
dstW, chrDstW, is_be, bits); \
}
yuv2NBPS( 9, BE, 1);
yuv2NBPS( 9, LE, 0);
yuv2NBPS(10, BE, 1);
yuv2NBPS(10, LE, 0);
yuv2NBPS(16, BE, 1);
yuv2NBPS(16, LE, 0);
static inline void yuv2yuvX16inC(const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,
const int16_t *chrFilter, const int16_t **chrUSrc, const int16_t **chrVSrc, int chrFilterSize,
const int16_t **alpSrc, uint16_t *dest, uint16_t *uDest, uint16_t *vDest, uint16_t *aDest, int dstW, int chrDstW,
enum PixelFormat dstFormat)
{
#define conv16(bits) \
if (isBE(dstFormat)) { \
yuv2yuvX ## bits ## BE_c(lumFilter, lumSrc, lumFilterSize, \
chrFilter, chrUSrc, chrVSrc, chrFilterSize, \
alpSrc, \
dest, uDest, vDest, aDest, \
dstW, chrDstW); \
} else { \
yuv2yuvX ## bits ## LE_c(lumFilter, lumSrc, lumFilterSize, \
chrFilter, chrUSrc, chrVSrc, chrFilterSize, \
alpSrc, \
dest, uDest, vDest, aDest, \
dstW, chrDstW); \
}
if (is16BPS(dstFormat)) {
conv16(16);
} else if (av_pix_fmt_descriptors[dstFormat].comp[0].depth_minus1 == 8) {
conv16(9);
} else {
conv16(10);
}
#undef conv16
}
static inline void yuv2yuvXinC(const int16_t *lumFilter, const int16_t **lumSrc, int lumFilterSize,
const int16_t *chrFilter, const int16_t **chrUSrc,
const int16_t **chrVSrc, int chrFilterSize,
const int16_t **alpSrc, uint8_t *dest, 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 += chrUSrc[j][i] * chrFilter[j];
v += chrVSrc[j][i] * 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 **chrUSrc,
const int16_t **chrVSrc, 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 += chrUSrc[j][i] * chrFilter[j];
v += chrVSrc[j][i] * 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 += chrUSrc[j][i] * chrFilter[j];
v += chrVSrc[j][i] * 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 += chrUSrc[j][i] * chrFilter[j];\
V += chrVSrc[j][i] * 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 += chrUSrc[j][i] * chrFilter[j];\
V += chrVSrc[j][i] * 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= (ubuf0[i]*uvalpha1+ubuf1[i]*uvalpha)>>19; \
int V= (vbuf0[i]*uvalpha1+vbuf1[i]*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= (ubuf1[i])>>7;\
int V= (vbuf1[i])>>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= (ubuf0[i] + ubuf1[i])>>8;\
int V= (vbuf0[i] + vbuf1[i])>>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 **chrUSrc,
const int16_t **chrVSrc, 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 **chrUSrc,
const int16_t **chrVSrc, 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, int 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,
int 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,
int 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, int 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,
int 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,
int 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, int 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, int 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, int 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, int 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 palToY(uint8_t *dst, const uint8_t *src, int 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,
int 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, int 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, int 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 yuv2yuvX_c(SwsContext *c, const int16_t *lumFilter,
const int16_t **lumSrc, int lumFilterSize,
const int16_t *chrFilter, const int16_t **chrUSrc,
const int16_t **chrVSrc,
int chrFilterSize, const int16_t **alpSrc,
uint8_t *dest, uint8_t *uDest, uint8_t *vDest,
uint8_t *aDest, int dstW, int chrDstW)
{
yuv2yuvXinC(lumFilter, lumSrc, lumFilterSize,
chrFilter, chrUSrc, chrVSrc, chrFilterSize,
alpSrc, dest, uDest, vDest, aDest, dstW, chrDstW);
}
static inline void yuv2nv12X_c(SwsContext *c, const int16_t *lumFilter,
const int16_t **lumSrc, int lumFilterSize,
const int16_t *chrFilter, const int16_t **chrUSrc,
const int16_t **chrVSrc,
int chrFilterSize, uint8_t *dest, uint8_t *uDest,
int dstW, int chrDstW, enum PixelFormat dstFormat)
{
yuv2nv12XinC(lumFilter, lumSrc, lumFilterSize,
chrFilter, chrUSrc, chrVSrc, chrFilterSize,
dest, uDest, dstW, chrDstW, dstFormat);
}
static inline void yuv2yuv1_c(SwsContext *c, const int16_t *lumSrc,
const int16_t *chrUSrc, const int16_t *chrVSrc,
const int16_t *alpSrc,
uint8_t *dest, uint8_t *uDest, uint8_t *vDest,
uint8_t *aDest, int dstW, int chrDstW)
{
int i;
for (i=0; i<dstW; i++) {
int val= (lumSrc[i]+64)>>7;
dest[i]= av_clip_uint8(val);
}
if (uDest)
for (i=0; i<chrDstW; i++) {
int u=(chrUSrc[i]+64)>>7;
int v=(chrVSrc[i]+64)>>7;
uDest[i]= av_clip_uint8(u);
vDest[i]= av_clip_uint8(v);
}
if (CONFIG_SWSCALE_ALPHA && aDest)
for (i=0; i<dstW; i++) {
int val= (alpSrc[i]+64)>>7;
aDest[i]= av_clip_uint8(val);
}
}
/**
* vertical scale YV12 to RGB
*/
static inline void yuv2packedX_c(SwsContext *c, const int16_t *lumFilter,
const int16_t **lumSrc, int lumFilterSize,
const int16_t *chrFilter, const int16_t **chrUSrc,
const int16_t **chrVSrc,
int chrFilterSize, const int16_t **alpSrc,
uint8_t *dest, int dstW, int dstY)
{
yuv2packedXinC(c, lumFilter, lumSrc, lumFilterSize,
chrFilter, chrUSrc, chrVSrc, chrFilterSize,
alpSrc, dest, dstW, dstY);
}
/**
* vertical bilinear scale YV12 to RGB
*/
static inline void yuv2packed2_c(SwsContext *c, const uint16_t *buf0,
const uint16_t *buf1, const uint16_t *ubuf0,
const uint16_t *ubuf1, const uint16_t *vbuf0,
const uint16_t *vbuf1, const uint16_t *abuf0,
const uint16_t *abuf1, uint8_t *dest, int dstW,
int yalpha, int uvalpha, int y)
{
int yalpha1=4095- yalpha;
int uvalpha1=4095-uvalpha;
int i;
YSCALE_YUV_2_ANYRGB_C(YSCALE_YUV_2_RGB2_C, YSCALE_YUV_2_PACKED2_C(void,0), YSCALE_YUV_2_GRAY16_2_C, YSCALE_YUV_2_MONO2_C)
}
/**
* YV12 to RGB without scaling or interpolating
*/
static inline void yuv2packed1_c(SwsContext *c, const uint16_t *buf0,
const uint16_t *ubuf0, const uint16_t *ubuf1,
const uint16_t *vbuf0, const uint16_t *vbuf1,
const uint16_t *abuf0, uint8_t *dest, int dstW,
int uvalpha, enum PixelFormat dstFormat,
int flags, int y)
{
const int yalpha1=0;
int i;
const uint16_t *buf1= buf0; //FIXME needed for RGB1/BGR1
const int yalpha= 4096; //FIXME ...
if (uvalpha < 2048) {
YSCALE_YUV_2_ANYRGB_C(YSCALE_YUV_2_RGB1_C, YSCALE_YUV_2_PACKED1_C(void,0), YSCALE_YUV_2_GRAY16_1_C, YSCALE_YUV_2_MONO2_C)
} else {
YSCALE_YUV_2_ANYRGB_C(YSCALE_YUV_2_RGB1B_C, YSCALE_YUV_2_PACKED1B_C(void,0), YSCALE_YUV_2_GRAY16_1_C, YSCALE_YUV_2_MONO2_C)
}
}
//FIXME yuy2* can read up to 7 samples too much
static inline void yuy2ToY_c(uint8_t *dst, const uint8_t *src, int width,
uint32_t *unused)
{
int i;
for (i=0; i<width; i++)
dst[i]= src[2*i];
}
static inline void yuy2ToUV_c(uint8_t *dstU, uint8_t *dstV, const uint8_t *src1,
const uint8_t *src2, int width, uint32_t *unused)
{
int i;
for (i=0; i<width; i++) {
dstU[i]= src1[4*i + 1];
dstV[i]= src1[4*i + 3];
}
assert(src1 == src2);
}
static inline void LEToUV_c(uint8_t *dstU, uint8_t *dstV, const uint8_t *src1,
const uint8_t *src2, int width, uint32_t *unused)
{
int i;
// FIXME I don't think this code is right for YUV444/422, since then h is not subsampled so
// we need to skip each second pixel. Same for BEToUV.
for (i=0; i<width; i++) {
dstU[i]= src1[2*i + 1];
dstV[i]= src2[2*i + 1];
}
}
/* This is almost identical to the previous, end exists only because
* yuy2ToY/UV)(dst, src+1, ...) would have 100% unaligned accesses. */
static inline void uyvyToY_c(uint8_t *dst, const uint8_t *src, int width,
uint32_t *unused)
{
int i;
for (i=0; i<width; i++)
dst[i]= src[2*i+1];
}
static inline void uyvyToUV_c(uint8_t *dstU, uint8_t *dstV, const uint8_t *src1,
const uint8_t *src2, int width, uint32_t *unused)
{
int i;
for (i=0; i<width; i++) {
dstU[i]= src1[4*i + 0];
dstV[i]= src1[4*i + 2];
}
assert(src1 == src2);
}
static inline void BEToUV_c(uint8_t *dstU, uint8_t *dstV, const uint8_t *src1,
const uint8_t *src2, int width, uint32_t *unused)
{
int i;
for (i=0; i<width; i++) {
dstU[i]= src1[2*i];
dstV[i]= src2[2*i];
}
}
static inline void nvXXtoUV_c(uint8_t *dst1, uint8_t *dst2,
const uint8_t *src, int width)
{
int i;
for (i = 0; i < width; i++) {
dst1[i] = src[2*i+0];
dst2[i] = src[2*i+1];
}
}
static inline void nv12ToUV_c(uint8_t *dstU, uint8_t *dstV,
const uint8_t *src1, const uint8_t *src2,
int width, uint32_t *unused)
{
nvXXtoUV_c(dstU, dstV, src1, width);
}
static inline void nv21ToUV_c(uint8_t *dstU, uint8_t *dstV,
const uint8_t *src1, const uint8_t *src2,
int width, uint32_t *unused)
{
nvXXtoUV_c(dstV, dstU, src1, width);
}
// FIXME Maybe dither instead.
#define YUV_NBPS(depth, endianness, rfunc) \
static inline void endianness ## depth ## ToUV_c(uint8_t *dstU, uint8_t *dstV, \
const uint8_t *_srcU, const uint8_t *_srcV, \
int width, uint32_t *unused) \
{ \
int i; \
const uint16_t *srcU = (const uint16_t*)_srcU; \
const uint16_t *srcV = (const uint16_t*)_srcV; \
for (i = 0; i < width; i++) { \
dstU[i] = rfunc(&srcU[i])>>(depth-8); \
dstV[i] = rfunc(&srcV[i])>>(depth-8); \
} \
} \
\
static inline void endianness ## depth ## ToY_c(uint8_t *dstY, const uint8_t *_srcY, int width, uint32_t *unused) \
{ \
int i; \
const uint16_t *srcY = (const uint16_t*)_srcY; \
for (i = 0; i < width; i++) \
dstY[i] = rfunc(&srcY[i])>>(depth-8); \
} \
YUV_NBPS( 9, LE, AV_RL16)
YUV_NBPS( 9, BE, AV_RB16)
YUV_NBPS(10, LE, AV_RL16)
YUV_NBPS(10, BE, AV_RB16)
static inline void bgr24ToY_c(uint8_t *dst, const uint8_t *src,
int width, uint32_t *unused)
{
int i;
for (i=0; i<width; i++) {
int b= src[i*3+0];
int g= src[i*3+1];
int r= src[i*3+2];
dst[i]= ((RY*r + GY*g + BY*b + (33<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT);
}
}
static inline void bgr24ToUV_c(uint8_t *dstU, uint8_t *dstV, const uint8_t *src1,
const uint8_t *src2, int width, uint32_t *unused)
{
int i;
for (i=0; i<width; i++) {
int b= src1[3*i + 0];
int g= src1[3*i + 1];
int r= src1[3*i + 2];
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;
}
assert(src1 == src2);
}
static inline void bgr24ToUV_half_c(uint8_t *dstU, uint8_t *dstV, const uint8_t *src1,
const uint8_t *src2, int width, uint32_t *unused)
{
int i;
for (i=0; i<width; i++) {
int b= src1[6*i + 0] + src1[6*i + 3];
int g= src1[6*i + 1] + src1[6*i + 4];
int r= src1[6*i + 2] + src1[6*i + 5];
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);
}
assert(src1 == src2);
}
static inline void rgb24ToY_c(uint8_t *dst, const uint8_t *src, int width,
uint32_t *unused)
{
int i;
for (i=0; i<width; i++) {
int r= src[i*3+0];
int g= src[i*3+1];
int b= src[i*3+2];
dst[i]= ((RY*r + GY*g + BY*b + (33<<(RGB2YUV_SHIFT-1)))>>RGB2YUV_SHIFT);
}
}
static inline void rgb24ToUV_c(uint8_t *dstU, uint8_t *dstV, const uint8_t *src1,
const uint8_t *src2, int width, uint32_t *unused)
{
int i;
assert(src1==src2);
for (i=0; i<width; i++) {
int r= src1[3*i + 0];
int g= src1[3*i + 1];
int b= src1[3*i + 2];
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 rgb24ToUV_half_c(uint8_t *dstU, uint8_t *dstV, const uint8_t *src1,
const uint8_t *src2, int width, uint32_t *unused)
{
int i;
assert(src1==src2);
for (i=0; i<width; i++) {
int r= src1[6*i + 0] + src1[6*i + 3];
int g= src1[6*i + 1] + src1[6*i + 4];
int b= src1[6*i + 2] + src1[6*i + 5];
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);
}
}
// bilinear / bicubic scaling
static inline void hScale_c(int16_t *dst, int dstW, const uint8_t *src,
int srcW, int xInc,
const int16_t *filter, const int16_t *filterPos,
int filterSize)
{
int i;
for (i=0; i<dstW; i++) {
int j;
int srcPos= filterPos[i];
int val=0;
for (j=0; j<filterSize; j++) {
val += ((int)src[srcPos + j])*filter[filterSize*i + j];
}
//filter += hFilterSize;
dst[i] = FFMIN(val>>7, (1<<15)-1); // the cubic equation does overflow ...
//dst[i] = val>>7;
}
}
//FIXME all pal and rgb srcFormats could do this convertion as well
//FIXME all scalers more complex than bilinear could do half of this transform
static void chrRangeToJpeg_c(uint16_t *dstU, uint16_t *dstV, int width)
{
int i;
for (i = 0; i < width; i++) {
dstU[i] = (FFMIN(dstU[i],30775)*4663 - 9289992)>>12; //-264
dstV[i] = (FFMIN(dstV[i],30775)*4663 - 9289992)>>12; //-264
}
}
static void chrRangeFromJpeg_c(uint16_t *dstU, uint16_t *dstV, int width)
{
int i;
for (i = 0; i < width; i++) {
dstU[i] = (dstU[i]*1799 + 4081085)>>11; //1469
dstV[i] = (dstV[i]*1799 + 4081085)>>11; //1469
}
}
static void lumRangeToJpeg_c(uint16_t *dst, int width)
{
int i;
for (i = 0; i < width; i++)
dst[i] = (FFMIN(dst[i],30189)*19077 - 39057361)>>14;
}
static void lumRangeFromJpeg_c(uint16_t *dst, int width)
{
int i;
for (i = 0; i < width; i++)
dst[i] = (dst[i]*14071 + 33561947)>>14;
}
static inline void hyscale_fast_c(SwsContext *c, int16_t *dst, int dstWidth,
const uint8_t *src, int srcW, int xInc)
{
int i;
unsigned int xpos=0;
for (i=0;i<dstWidth;i++) {
register unsigned int xx=xpos>>16;
register unsigned int xalpha=(xpos&0xFFFF)>>9;
dst[i]= (src[xx]<<7) + (src[xx+1] - src[xx])*xalpha;
xpos+=xInc;
}
}
// *** horizontal scale Y line to temp buffer
static inline void hyscale_c(SwsContext *c, uint16_t *dst, int dstWidth,
const uint8_t *src, int srcW, int xInc,
const int16_t *hLumFilter,
const int16_t *hLumFilterPos, int hLumFilterSize,
uint8_t *formatConvBuffer,
uint32_t *pal, int isAlpha)
{
void (*toYV12)(uint8_t *, const uint8_t *, int, uint32_t *) = isAlpha ? c->alpToYV12 : c->lumToYV12;
void (*convertRange)(uint16_t *, int) = isAlpha ? NULL : c->lumConvertRange;
src += isAlpha ? c->alpSrcOffset : c->lumSrcOffset;
if (toYV12) {
toYV12(formatConvBuffer, src, srcW, pal);
src= formatConvBuffer;
}
if (!c->hyscale_fast) {
c->hScale(dst, dstWidth, src, srcW, xInc, hLumFilter, hLumFilterPos, hLumFilterSize);
} else { // fast bilinear upscale / crap downscale
c->hyscale_fast(c, dst, dstWidth, src, srcW, xInc);
}
if (convertRange)
convertRange(dst, dstWidth);
}
static inline void hcscale_fast_c(SwsContext *c, int16_t *dst1, int16_t *dst2,
int dstWidth, const uint8_t *src1,
const uint8_t *src2, int srcW, int xInc)
{
int i;
unsigned int xpos=0;
for (i=0;i<dstWidth;i++) {
register unsigned int xx=xpos>>16;
register unsigned int xalpha=(xpos&0xFFFF)>>9;
dst1[i]=(src1[xx]*(xalpha^127)+src1[xx+1]*xalpha);
dst2[i]=(src2[xx]*(xalpha^127)+src2[xx+1]*xalpha);
xpos+=xInc;
}
}
inline static void hcscale_c(SwsContext *c, uint16_t *dst1, uint16_t *dst2, int dstWidth,
const uint8_t *src1, const uint8_t *src2,
int srcW, int xInc, const int16_t *hChrFilter,
const int16_t *hChrFilterPos, int hChrFilterSize,
uint8_t *formatConvBuffer, uint32_t *pal)
{
src1 += c->chrSrcOffset;
src2 += c->chrSrcOffset;
if (c->chrToYV12) {
uint8_t *buf2 = formatConvBuffer + FFALIGN(srcW, 16);
c->chrToYV12(formatConvBuffer, buf2, src1, src2, srcW, pal);
src1= formatConvBuffer;
src2= buf2;
}
if (!c->hcscale_fast) {
c->hScale(dst1, dstWidth, src1, srcW, xInc, hChrFilter, hChrFilterPos, hChrFilterSize);
c->hScale(dst2, dstWidth, src2, srcW, xInc, hChrFilter, hChrFilterPos, hChrFilterSize);
} else { // fast bilinear upscale / crap downscale
c->hcscale_fast(c, dst1, dst2, dstWidth, src1, src2, srcW, xInc);
}
if (c->chrConvertRange)
c->chrConvertRange(dst1, dst2, dstWidth);
}
#define DEBUG_SWSCALE_BUFFERS 0
#define DEBUG_BUFFERS(...) if (DEBUG_SWSCALE_BUFFERS) av_log(c, AV_LOG_DEBUG, __VA_ARGS__)
static int swScale_c(SwsContext *c, const uint8_t* src[], int srcStride[],
int srcSliceY, int srcSliceH, uint8_t* dst[], int dstStride[])
{
/* load a few things into local vars to make the code more readable? and faster */
const int srcW= c->srcW;
const int dstW= c->dstW;
const int dstH= c->dstH;
const int chrDstW= c->chrDstW;
const int chrSrcW= c->chrSrcW;
const int lumXInc= c->lumXInc;
const int chrXInc= c->chrXInc;
const enum PixelFormat dstFormat= c->dstFormat;
const int flags= c->flags;
int16_t *vLumFilterPos= c->vLumFilterPos;
int16_t *vChrFilterPos= c->vChrFilterPos;
int16_t *hLumFilterPos= c->hLumFilterPos;
int16_t *hChrFilterPos= c->hChrFilterPos;
int16_t *vLumFilter= c->vLumFilter;
int16_t *vChrFilter= c->vChrFilter;
int16_t *hLumFilter= c->hLumFilter;
int16_t *hChrFilter= c->hChrFilter;
int32_t *lumMmxFilter= c->lumMmxFilter;
int32_t *chrMmxFilter= c->chrMmxFilter;
int32_t av_unused *alpMmxFilter= c->alpMmxFilter;
const int vLumFilterSize= c->vLumFilterSize;
const int vChrFilterSize= c->vChrFilterSize;
const int hLumFilterSize= c->hLumFilterSize;
const int hChrFilterSize= c->hChrFilterSize;
int16_t **lumPixBuf= c->lumPixBuf;
int16_t **chrUPixBuf= c->chrUPixBuf;
int16_t **chrVPixBuf= c->chrVPixBuf;
int16_t **alpPixBuf= c->alpPixBuf;
const int vLumBufSize= c->vLumBufSize;
const int vChrBufSize= c->vChrBufSize;
uint8_t *formatConvBuffer= c->formatConvBuffer;
const int chrSrcSliceY= srcSliceY >> c->chrSrcVSubSample;
const int chrSrcSliceH= -((-srcSliceH) >> c->chrSrcVSubSample);
int lastDstY;
uint32_t *pal=c->pal_yuv;
/* vars which will change and which we need to store back in the context */
int dstY= c->dstY;
int lumBufIndex= c->lumBufIndex;
int chrBufIndex= c->chrBufIndex;
int lastInLumBuf= c->lastInLumBuf;
int lastInChrBuf= c->lastInChrBuf;
if (isPacked(c->srcFormat)) {
src[0]=
src[1]=
src[2]=
src[3]= src[0];
srcStride[0]=
srcStride[1]=
srcStride[2]=
srcStride[3]= srcStride[0];
}
srcStride[1]<<= c->vChrDrop;
srcStride[2]<<= c->vChrDrop;
DEBUG_BUFFERS("swScale() %p[%d] %p[%d] %p[%d] %p[%d] -> %p[%d] %p[%d] %p[%d] %p[%d]\n",
src[0], srcStride[0], src[1], srcStride[1], src[2], srcStride[2], src[3], srcStride[3],
dst[0], dstStride[0], dst[1], dstStride[1], dst[2], dstStride[2], dst[3], dstStride[3]);
DEBUG_BUFFERS("srcSliceY: %d srcSliceH: %d dstY: %d dstH: %d\n",
srcSliceY, srcSliceH, dstY, dstH);
DEBUG_BUFFERS("vLumFilterSize: %d vLumBufSize: %d vChrFilterSize: %d vChrBufSize: %d\n",
vLumFilterSize, vLumBufSize, vChrFilterSize, vChrBufSize);
if (dstStride[0]%8 !=0 || dstStride[1]%8 !=0 || dstStride[2]%8 !=0 || dstStride[3]%8 != 0) {
static int warnedAlready=0; //FIXME move this into the context perhaps
if (flags & SWS_PRINT_INFO && !warnedAlready) {
av_log(c, AV_LOG_WARNING, "Warning: dstStride is not aligned!\n"
" ->cannot do aligned memory accesses anymore\n");
warnedAlready=1;
}
}
/* Note the user might start scaling the picture in the middle so this
will not get executed. This is not really intended but works
currently, so people might do it. */
if (srcSliceY ==0) {
lumBufIndex=-1;
chrBufIndex=-1;
dstY=0;
lastInLumBuf= -1;
lastInChrBuf= -1;
}
lastDstY= dstY;
for (;dstY < dstH; dstY++) {
unsigned char *dest =dst[0]+dstStride[0]*dstY;
const int chrDstY= dstY>>c->chrDstVSubSample;
unsigned char *uDest=dst[1]+dstStride[1]*chrDstY;
unsigned char *vDest=dst[2]+dstStride[2]*chrDstY;
unsigned char *aDest=(CONFIG_SWSCALE_ALPHA && alpPixBuf) ? dst[3]+dstStride[3]*dstY : NULL;
const int firstLumSrcY= vLumFilterPos[dstY]; //First line needed as input
const int firstLumSrcY2= vLumFilterPos[FFMIN(dstY | ((1<<c->chrDstVSubSample) - 1), dstH-1)];
const int firstChrSrcY= vChrFilterPos[chrDstY]; //First line needed as input
int lastLumSrcY= firstLumSrcY + vLumFilterSize -1; // Last line needed as input
int lastLumSrcY2=firstLumSrcY2+ vLumFilterSize -1; // Last line needed as input
int lastChrSrcY= firstChrSrcY + vChrFilterSize -1; // Last line needed as input
int enough_lines;
//handle holes (FAST_BILINEAR & weird filters)
if (firstLumSrcY > lastInLumBuf) lastInLumBuf= firstLumSrcY-1;
if (firstChrSrcY > lastInChrBuf) lastInChrBuf= firstChrSrcY-1;
assert(firstLumSrcY >= lastInLumBuf - vLumBufSize + 1);
assert(firstChrSrcY >= lastInChrBuf - vChrBufSize + 1);
DEBUG_BUFFERS("dstY: %d\n", dstY);
DEBUG_BUFFERS("\tfirstLumSrcY: %d lastLumSrcY: %d lastInLumBuf: %d\n",
firstLumSrcY, lastLumSrcY, lastInLumBuf);
DEBUG_BUFFERS("\tfirstChrSrcY: %d lastChrSrcY: %d lastInChrBuf: %d\n",
firstChrSrcY, lastChrSrcY, lastInChrBuf);
// Do we have enough lines in this slice to output the dstY line
enough_lines = lastLumSrcY2 < srcSliceY + srcSliceH && lastChrSrcY < -((-srcSliceY - srcSliceH)>>c->chrSrcVSubSample);
if (!enough_lines) {
lastLumSrcY = srcSliceY + srcSliceH - 1;
lastChrSrcY = chrSrcSliceY + chrSrcSliceH - 1;
DEBUG_BUFFERS("buffering slice: lastLumSrcY %d lastChrSrcY %d\n",
lastLumSrcY, lastChrSrcY);
}
//Do horizontal scaling
while(lastInLumBuf < lastLumSrcY) {
const uint8_t *src1= src[0]+(lastInLumBuf + 1 - srcSliceY)*srcStride[0];
const uint8_t *src2= src[3]+(lastInLumBuf + 1 - srcSliceY)*srcStride[3];
lumBufIndex++;
assert(lumBufIndex < 2*vLumBufSize);
assert(lastInLumBuf + 1 - srcSliceY < srcSliceH);
assert(lastInLumBuf + 1 - srcSliceY >= 0);
hyscale_c(c, lumPixBuf[ lumBufIndex ], dstW, src1, srcW, lumXInc,
hLumFilter, hLumFilterPos, hLumFilterSize,
formatConvBuffer,
pal, 0);
if (CONFIG_SWSCALE_ALPHA && alpPixBuf)
hyscale_c(c, alpPixBuf[ lumBufIndex ], dstW, src2, srcW,
lumXInc, hLumFilter, hLumFilterPos, hLumFilterSize,
formatConvBuffer,
pal, 1);
lastInLumBuf++;
DEBUG_BUFFERS("\t\tlumBufIndex %d: lastInLumBuf: %d\n",
lumBufIndex, lastInLumBuf);
}
while(lastInChrBuf < lastChrSrcY) {
const uint8_t *src1= src[1]+(lastInChrBuf + 1 - chrSrcSliceY)*srcStride[1];
const uint8_t *src2= src[2]+(lastInChrBuf + 1 - chrSrcSliceY)*srcStride[2];
chrBufIndex++;
assert(chrBufIndex < 2*vChrBufSize);
assert(lastInChrBuf + 1 - chrSrcSliceY < (chrSrcSliceH));
assert(lastInChrBuf + 1 - chrSrcSliceY >= 0);
//FIXME replace parameters through context struct (some at least)
if (c->needs_hcscale)
hcscale_c(c, chrUPixBuf[chrBufIndex], chrVPixBuf[chrBufIndex],
chrDstW, src1, src2, chrSrcW, chrXInc,
hChrFilter, hChrFilterPos, hChrFilterSize,
formatConvBuffer, pal);
lastInChrBuf++;
DEBUG_BUFFERS("\t\tchrBufIndex %d: lastInChrBuf: %d\n",
chrBufIndex, lastInChrBuf);
}
//wrap buf index around to stay inside the ring buffer
if (lumBufIndex >= vLumBufSize) lumBufIndex-= vLumBufSize;
if (chrBufIndex >= vChrBufSize) chrBufIndex-= vChrBufSize;
if (!enough_lines)
break; //we can't output a dstY line so let's try with the next slice
#if HAVE_MMX
updateMMXDitherTables(c, dstY, lumBufIndex, chrBufIndex, lastInLumBuf, lastInChrBuf);
#endif
if (dstY < dstH-2) {
const int16_t **lumSrcPtr= (const int16_t **) lumPixBuf + lumBufIndex + firstLumSrcY - lastInLumBuf + vLumBufSize;
const int16_t **chrUSrcPtr= (const int16_t **) chrUPixBuf + chrBufIndex + firstChrSrcY - lastInChrBuf + vChrBufSize;
const int16_t **chrVSrcPtr= (const int16_t **) chrVPixBuf + chrBufIndex + firstChrSrcY - lastInChrBuf + vChrBufSize;
const int16_t **alpSrcPtr= (CONFIG_SWSCALE_ALPHA && alpPixBuf) ? (const int16_t **) alpPixBuf + lumBufIndex + firstLumSrcY - lastInLumBuf + vLumBufSize : NULL;
if (dstFormat == PIX_FMT_NV12 || dstFormat == PIX_FMT_NV21) {
const int chrSkipMask= (1<<c->chrDstVSubSample)-1;
if (dstY&chrSkipMask) uDest= NULL; //FIXME split functions in lumi / chromi
c->yuv2nv12X(c,
vLumFilter+dstY*vLumFilterSize , lumSrcPtr, vLumFilterSize,
vChrFilter+chrDstY*vChrFilterSize, chrUSrcPtr, chrVSrcPtr, vChrFilterSize,
dest, uDest, dstW, chrDstW, dstFormat);
} else if (isPlanarYUV(dstFormat) || dstFormat==PIX_FMT_GRAY8) { //YV12 like
const int chrSkipMask= (1<<c->chrDstVSubSample)-1;
if ((dstY&chrSkipMask) || isGray(dstFormat)) uDest=vDest= NULL; //FIXME split functions in lumi / chromi
if (is16BPS(dstFormat) || is9_OR_10BPS(dstFormat)) {
yuv2yuvX16inC(vLumFilter+dstY*vLumFilterSize , lumSrcPtr, vLumFilterSize,
vChrFilter+chrDstY*vChrFilterSize, chrUSrcPtr,
chrVSrcPtr, vChrFilterSize,
alpSrcPtr, (uint16_t *) dest, (uint16_t *) uDest,
(uint16_t *) vDest, (uint16_t *) aDest, dstW, chrDstW,
dstFormat);
} else if (vLumFilterSize == 1 && vChrFilterSize == 1) { // unscaled YV12
const int16_t *lumBuf = lumSrcPtr[0];
const int16_t *chrUBuf= chrUSrcPtr[0];
const int16_t *chrVBuf= chrVSrcPtr[0];
const int16_t *alpBuf= (CONFIG_SWSCALE_ALPHA && alpPixBuf) ? alpSrcPtr[0] : NULL;
c->yuv2yuv1(c, lumBuf, chrUBuf, chrVBuf, alpBuf, dest,
uDest, vDest, aDest, dstW, chrDstW);
} else { //General YV12
c->yuv2yuvX(c,
vLumFilter+dstY*vLumFilterSize , lumSrcPtr, vLumFilterSize,
vChrFilter+chrDstY*vChrFilterSize, chrUSrcPtr,
chrVSrcPtr, vChrFilterSize,
alpSrcPtr, dest, uDest, vDest, aDest, dstW, chrDstW);
}
} else {
assert(lumSrcPtr + vLumFilterSize - 1 < lumPixBuf + vLumBufSize*2);
assert(chrUSrcPtr + vChrFilterSize - 1 < chrUPixBuf + vChrBufSize*2);
if (vLumFilterSize == 1 && vChrFilterSize == 2) { //unscaled RGB
int chrAlpha= vChrFilter[2*dstY+1];
if(flags & SWS_FULL_CHR_H_INT) {
yuv2rgbXinC_full(c, //FIXME write a packed1_full function
vLumFilter+dstY*vLumFilterSize, lumSrcPtr, vLumFilterSize,
vChrFilter+dstY*vChrFilterSize, chrUSrcPtr,
chrVSrcPtr, vChrFilterSize,
alpSrcPtr, dest, dstW, dstY);
} else {
c->yuv2packed1(c, *lumSrcPtr, *chrUSrcPtr, *(chrUSrcPtr+1),
*chrVSrcPtr, *(chrVSrcPtr+1),
alpPixBuf ? *alpSrcPtr : NULL,
dest, dstW, chrAlpha, dstFormat, flags, dstY);
}
} else if (vLumFilterSize == 2 && vChrFilterSize == 2) { //bilinear upscale RGB
int lumAlpha= vLumFilter[2*dstY+1];
int chrAlpha= vChrFilter[2*dstY+1];
lumMmxFilter[2]=
lumMmxFilter[3]= vLumFilter[2*dstY ]*0x10001;
chrMmxFilter[2]=
chrMmxFilter[3]= vChrFilter[2*chrDstY]*0x10001;
if(flags & SWS_FULL_CHR_H_INT) {
yuv2rgbXinC_full(c, //FIXME write a packed2_full function
vLumFilter+dstY*vLumFilterSize, lumSrcPtr, vLumFilterSize,
vChrFilter+dstY*vChrFilterSize, chrUSrcPtr, chrVSrcPtr, vChrFilterSize,
alpSrcPtr, dest, dstW, dstY);
} else {
c->yuv2packed2(c, *lumSrcPtr, *(lumSrcPtr+1), *chrUSrcPtr, *(chrUSrcPtr+1),
*chrVSrcPtr, *(chrVSrcPtr+1),
alpPixBuf ? *alpSrcPtr : NULL, alpPixBuf ? *(alpSrcPtr+1) : NULL,
dest, dstW, lumAlpha, chrAlpha, dstY);
}
} else { //general RGB
if(flags & SWS_FULL_CHR_H_INT) {
yuv2rgbXinC_full(c,
vLumFilter+dstY*vLumFilterSize, lumSrcPtr, vLumFilterSize,
vChrFilter+dstY*vChrFilterSize, chrUSrcPtr, chrVSrcPtr, vChrFilterSize,
alpSrcPtr, dest, dstW, dstY);
} else {
c->yuv2packedX(c,
vLumFilter+dstY*vLumFilterSize, lumSrcPtr, vLumFilterSize,
vChrFilter+dstY*vChrFilterSize, chrUSrcPtr, chrVSrcPtr, vChrFilterSize,
alpSrcPtr, dest, dstW, dstY);
}
}
}
} else { // hmm looks like we can't use MMX here without overwriting this array's tail
const int16_t **lumSrcPtr= (const int16_t **)lumPixBuf + lumBufIndex + firstLumSrcY - lastInLumBuf + vLumBufSize;
const int16_t **chrUSrcPtr= (const int16_t **)chrUPixBuf + chrBufIndex + firstChrSrcY - lastInChrBuf + vChrBufSize;
const int16_t **chrVSrcPtr= (const int16_t **)chrVPixBuf + chrBufIndex + firstChrSrcY - lastInChrBuf + vChrBufSize;
const int16_t **alpSrcPtr= (CONFIG_SWSCALE_ALPHA && alpPixBuf) ? (const int16_t **)alpPixBuf + lumBufIndex + firstLumSrcY - lastInLumBuf + vLumBufSize : NULL;
if (dstFormat == PIX_FMT_NV12 || dstFormat == PIX_FMT_NV21) {
const int chrSkipMask= (1<<c->chrDstVSubSample)-1;
if (dstY&chrSkipMask) uDest= NULL; //FIXME split functions in lumi / chromi
yuv2nv12XinC(
vLumFilter+dstY*vLumFilterSize , lumSrcPtr, vLumFilterSize,
vChrFilter+chrDstY*vChrFilterSize, chrUSrcPtr, chrVSrcPtr, vChrFilterSize,
dest, uDest, dstW, chrDstW, dstFormat);
} else if (isPlanarYUV(dstFormat) || dstFormat==PIX_FMT_GRAY8) { //YV12
const int chrSkipMask= (1<<c->chrDstVSubSample)-1;
if ((dstY&chrSkipMask) || isGray(dstFormat)) uDest=vDest= NULL; //FIXME split functions in lumi / chromi
if (is16BPS(dstFormat) || is9_OR_10BPS(dstFormat)) {
yuv2yuvX16inC(
vLumFilter+dstY*vLumFilterSize , lumSrcPtr, vLumFilterSize,
vChrFilter+chrDstY*vChrFilterSize, chrUSrcPtr, chrVSrcPtr, vChrFilterSize,
alpSrcPtr, (uint16_t *) dest, (uint16_t *) uDest, (uint16_t *) vDest, (uint16_t *) aDest, dstW, chrDstW,
dstFormat);
} else {
yuv2yuvXinC(
vLumFilter+dstY*vLumFilterSize , lumSrcPtr, vLumFilterSize,
vChrFilter+chrDstY*vChrFilterSize, chrUSrcPtr, chrVSrcPtr, vChrFilterSize,
alpSrcPtr, dest, uDest, vDest, aDest, dstW, chrDstW);
}
} else {
assert(lumSrcPtr + vLumFilterSize - 1 < lumPixBuf + vLumBufSize*2);
assert(chrUSrcPtr + vChrFilterSize - 1 < chrUPixBuf + vChrBufSize*2);
if(flags & SWS_FULL_CHR_H_INT) {
yuv2rgbXinC_full(c,
vLumFilter+dstY*vLumFilterSize, lumSrcPtr, vLumFilterSize,
vChrFilter+dstY*vChrFilterSize, chrUSrcPtr, chrVSrcPtr, vChrFilterSize,
alpSrcPtr, dest, dstW, dstY);
} else {
yuv2packedXinC(c,
vLumFilter+dstY*vLumFilterSize, lumSrcPtr, vLumFilterSize,
vChrFilter+dstY*vChrFilterSize, chrUSrcPtr, chrVSrcPtr, vChrFilterSize,
alpSrcPtr, dest, dstW, dstY);
}
}
}
}
if ((dstFormat == PIX_FMT_YUVA420P) && !alpPixBuf)
fillPlane(dst[3], dstStride[3], dstW, dstY-lastDstY, lastDstY, 255);
#if HAVE_MMX2
if (av_get_cpu_flags() & AV_CPU_FLAG_MMX2)
__asm__ volatile("sfence":::"memory");
#endif
emms_c();
/* store changed local vars back in the context */
c->dstY= dstY;
c->lumBufIndex= lumBufIndex;
c->chrBufIndex= chrBufIndex;
c->lastInLumBuf= lastInLumBuf;
c->lastInChrBuf= lastInChrBuf;
return dstY - lastDstY;
}
static void sws_init_swScale_c(SwsContext *c)
{
enum PixelFormat srcFormat = c->srcFormat;
c->yuv2nv12X = yuv2nv12X_c;
c->yuv2yuv1 = yuv2yuv1_c;
c->yuv2yuvX = yuv2yuvX_c;
c->yuv2packed1 = yuv2packed1_c;
c->yuv2packed2 = yuv2packed2_c;
c->yuv2packedX = yuv2packedX_c;
c->hScale = hScale_c;
if (c->flags & SWS_FAST_BILINEAR)
{
c->hyscale_fast = hyscale_fast_c;
c->hcscale_fast = hcscale_fast_c;
}
c->chrToYV12 = NULL;
switch(srcFormat) {
case PIX_FMT_YUYV422 : c->chrToYV12 = yuy2ToUV_c; break;
case PIX_FMT_UYVY422 : c->chrToYV12 = uyvyToUV_c; break;
case PIX_FMT_NV12 : c->chrToYV12 = nv12ToUV_c; break;
case PIX_FMT_NV21 : c->chrToYV12 = nv21ToUV_c; break;
case PIX_FMT_RGB8 :
case PIX_FMT_BGR8 :
case PIX_FMT_PAL8 :
case PIX_FMT_BGR4_BYTE:
case PIX_FMT_RGB4_BYTE: c->chrToYV12 = palToUV; break;
case PIX_FMT_YUV420P9BE: c->chrToYV12 = BE9ToUV_c; break;
case PIX_FMT_YUV420P9LE: c->chrToYV12 = LE9ToUV_c; break;
case PIX_FMT_YUV420P10BE: c->chrToYV12 = BE10ToUV_c; break;
case PIX_FMT_YUV420P10LE: c->chrToYV12 = LE10ToUV_c; break;
case PIX_FMT_YUV420P16BE:
case PIX_FMT_YUV422P16BE:
case PIX_FMT_YUV444P16BE: c->chrToYV12 = BEToUV_c; break;
case PIX_FMT_YUV420P16LE:
case PIX_FMT_YUV422P16LE:
case PIX_FMT_YUV444P16LE: c->chrToYV12 = LEToUV_c; break;
}
if (c->chrSrcHSubSample) {
switch(srcFormat) {
case PIX_FMT_RGB48BE:
case PIX_FMT_RGB48LE: c->chrToYV12 = rgb48ToUV_half; break;
case PIX_FMT_BGR48BE:
case PIX_FMT_BGR48LE: c->chrToYV12 = bgr48ToUV_half; break;
case PIX_FMT_RGB32 : c->chrToYV12 = bgr32ToUV_half; break;
case PIX_FMT_RGB32_1: c->chrToYV12 = bgr321ToUV_half; break;
case PIX_FMT_BGR24 : c->chrToYV12 = bgr24ToUV_half_c; break;
case PIX_FMT_BGR565 : c->chrToYV12 = bgr16ToUV_half; break;
case PIX_FMT_BGR555 : c->chrToYV12 = bgr15ToUV_half; break;
case PIX_FMT_BGR32 : c->chrToYV12 = rgb32ToUV_half; break;
case PIX_FMT_BGR32_1: c->chrToYV12 = rgb321ToUV_half; break;
case PIX_FMT_RGB24 : c->chrToYV12 = rgb24ToUV_half_c; break;
case PIX_FMT_RGB565 : c->chrToYV12 = rgb16ToUV_half; break;
case PIX_FMT_RGB555 : c->chrToYV12 = rgb15ToUV_half; break;
}
} else {
switch(srcFormat) {
case PIX_FMT_RGB48BE:
case PIX_FMT_RGB48LE: c->chrToYV12 = rgb48ToUV; break;
case PIX_FMT_BGR48BE:
case PIX_FMT_BGR48LE: c->chrToYV12 = bgr48ToUV; break;
case PIX_FMT_RGB32 : c->chrToYV12 = bgr32ToUV; break;
case PIX_FMT_RGB32_1: c->chrToYV12 = bgr321ToUV; break;
case PIX_FMT_BGR24 : c->chrToYV12 = bgr24ToUV_c; break;
case PIX_FMT_BGR565 : c->chrToYV12 = bgr16ToUV; break;
case PIX_FMT_BGR555 : c->chrToYV12 = bgr15ToUV; break;
case PIX_FMT_BGR32 : c->chrToYV12 = rgb32ToUV; break;
case PIX_FMT_BGR32_1: c->chrToYV12 = rgb321ToUV; break;
case PIX_FMT_RGB24 : c->chrToYV12 = rgb24ToUV_c; break;
case PIX_FMT_RGB565 : c->chrToYV12 = rgb16ToUV; break;
case PIX_FMT_RGB555 : c->chrToYV12 = rgb15ToUV; break;
}
}
c->lumToYV12 = NULL;
c->alpToYV12 = NULL;
switch (srcFormat) {
case PIX_FMT_YUV420P9BE: c->lumToYV12 = BE9ToY_c; break;
case PIX_FMT_YUV420P9LE: c->lumToYV12 = LE9ToY_c; break;
case PIX_FMT_YUV420P10BE: c->lumToYV12 = BE10ToY_c; break;
case PIX_FMT_YUV420P10LE: c->lumToYV12 = LE10ToY_c; break;
case PIX_FMT_YUYV422 :
case PIX_FMT_YUV420P16BE:
case PIX_FMT_YUV422P16BE:
case PIX_FMT_YUV444P16BE:
case PIX_FMT_Y400A :
case PIX_FMT_GRAY16BE : c->lumToYV12 = yuy2ToY_c; break;
case PIX_FMT_UYVY422 :
case PIX_FMT_YUV420P16LE:
case PIX_FMT_YUV422P16LE:
case PIX_FMT_YUV444P16LE:
case PIX_FMT_GRAY16LE : c->lumToYV12 = uyvyToY_c; break;
case PIX_FMT_BGR24 : c->lumToYV12 = bgr24ToY_c; break;
case PIX_FMT_BGR565 : c->lumToYV12 = bgr16ToY; break;
case PIX_FMT_BGR555 : c->lumToYV12 = bgr15ToY; break;
case PIX_FMT_RGB24 : c->lumToYV12 = rgb24ToY_c; break;
case PIX_FMT_RGB565 : c->lumToYV12 = rgb16ToY; break;
case PIX_FMT_RGB555 : c->lumToYV12 = rgb15ToY; break;
case PIX_FMT_RGB8 :
case PIX_FMT_BGR8 :
case PIX_FMT_PAL8 :
case PIX_FMT_BGR4_BYTE:
case PIX_FMT_RGB4_BYTE: c->lumToYV12 = palToY; break;
case PIX_FMT_MONOBLACK: c->lumToYV12 = monoblack2Y; break;
case PIX_FMT_MONOWHITE: c->lumToYV12 = monowhite2Y; break;
case PIX_FMT_RGB32 : c->lumToYV12 = bgr32ToY; break;
case PIX_FMT_RGB32_1: c->lumToYV12 = bgr321ToY; break;
case PIX_FMT_BGR32 : c->lumToYV12 = rgb32ToY; break;
case PIX_FMT_BGR32_1: c->lumToYV12 = rgb321ToY; break;
case PIX_FMT_RGB48BE:
case PIX_FMT_RGB48LE: c->lumToYV12 = rgb48ToY; break;
case PIX_FMT_BGR48BE:
case PIX_FMT_BGR48LE: c->lumToYV12 = bgr48ToY; break;
}
if (c->alpPixBuf) {
switch (srcFormat) {
case PIX_FMT_RGB32 :
case PIX_FMT_RGB32_1:
case PIX_FMT_BGR32 :
case PIX_FMT_BGR32_1: c->alpToYV12 = abgrToA; break;
case PIX_FMT_Y400A : c->alpToYV12 = yuy2ToY_c; break;
}
}
switch (srcFormat) {
case PIX_FMT_Y400A :
c->alpSrcOffset = 1;
break;
case PIX_FMT_RGB32 :
case PIX_FMT_BGR32 :
c->alpSrcOffset = 3;
break;
case PIX_FMT_RGB48LE:
case PIX_FMT_BGR48LE:
c->lumSrcOffset = 1;
c->chrSrcOffset = 1;
c->alpSrcOffset = 1;
break;
}
if (c->srcRange != c->dstRange && !isAnyRGB(c->dstFormat)) {
if (c->srcRange) {
c->lumConvertRange = lumRangeFromJpeg_c;
c->chrConvertRange = chrRangeFromJpeg_c;
} else {
c->lumConvertRange = lumRangeToJpeg_c;
c->chrConvertRange = chrRangeToJpeg_c;
}
}
if (!(isGray(srcFormat) || isGray(c->dstFormat) ||
srcFormat == PIX_FMT_MONOBLACK || srcFormat == PIX_FMT_MONOWHITE))
c->needs_hcscale = 1;
}
SwsFunc ff_getSwsFunc(SwsContext *c)
{
sws_init_swScale_c(c);
if (HAVE_MMX)
ff_sws_init_swScale_mmx(c);
if (HAVE_ALTIVEC)
ff_sws_init_swScale_altivec(c);
return swScale_c;
}
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, int num_pixels, const uint8_t *palette)
{
int 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, int num_pixels, const uint8_t *palette)
{
int 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, int num_pixels, const uint8_t *palette)
{
int 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, int 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_Y400A) {
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, int 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)
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;
}
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(is9_OR_10BPS(c->srcFormat)) {
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;
const uint16_t *srcPtr2 = (const uint16_t*)srcPtr;
if (is16BPS(c->dstFormat)) {
uint16_t *dstPtr2 = (uint16_t*)dstPtr;
#define COPY9_OR_10TO16(rfunc, wfunc) \
for (i = 0; i < height; i++) { \
for (j = 0; j < length; j++) { \
int srcpx = rfunc(&srcPtr2[j]); \
wfunc(&dstPtr2[j], (srcpx<<(16-src_depth)) | (srcpx>>(2*src_depth-16))); \
} \
dstPtr2 += dstStride[plane]/2; \
srcPtr2 += srcStride[plane]/2; \
}
if (isBE(c->dstFormat)) {
if (isBE(c->srcFormat)) {
COPY9_OR_10TO16(AV_RB16, AV_WB16);
} else {
COPY9_OR_10TO16(AV_RL16, AV_WB16);
}
} else {
if (isBE(c->srcFormat)) {
COPY9_OR_10TO16(AV_RB16, AV_WL16);
} else {
COPY9_OR_10TO16(AV_RL16, AV_WL16);
}
}
} else if (is9_OR_10BPS(c->dstFormat)) {
uint16_t *dstPtr2 = (uint16_t*)dstPtr;
#define COPY9_OR_10TO9_OR_10(loop) \
for (i = 0; i < height; i++) { \
for (j = 0; j < length; j++) { \
loop; \
} \
dstPtr2 += dstStride[plane]/2; \
srcPtr2 += srcStride[plane]/2; \
}
#define COPY9_OR_10TO9_OR_10_2(rfunc, wfunc) \
if (dst_depth > src_depth) { \
COPY9_OR_10TO9_OR_10(int srcpx = rfunc(&srcPtr2[j]); \
wfunc(&dstPtr2[j], (srcpx << 1) | (srcpx >> 9))); \
} else if (dst_depth < src_depth) { \
COPY9_OR_10TO9_OR_10(wfunc(&dstPtr2[j], rfunc(&srcPtr2[j]) >> 1)); \
} else { \
COPY9_OR_10TO9_OR_10(wfunc(&dstPtr2[j], rfunc(&srcPtr2[j]))); \
}
if (isBE(c->dstFormat)) {
if (isBE(c->srcFormat)) {
COPY9_OR_10TO9_OR_10_2(AV_RB16, AV_WB16);
} else {
COPY9_OR_10TO9_OR_10_2(AV_RL16, AV_WB16);
}
} else {
if (isBE(c->srcFormat)) {
COPY9_OR_10TO9_OR_10_2(AV_RB16, AV_WL16);
} else {
COPY9_OR_10TO9_OR_10_2(AV_RL16, AV_WL16);
}
}
} else {
// FIXME Maybe dither instead.
#define COPY9_OR_10TO8(rfunc) \
for (i = 0; i < height; i++) { \
for (j = 0; j < length; j++) { \
dstPtr[j] = rfunc(&srcPtr2[j])>>(src_depth-8); \
} \
dstPtr += dstStride[plane]; \
srcPtr2 += srcStride[plane]/2; \
}
if (isBE(c->srcFormat)) {
COPY9_OR_10TO8(AV_RB16);
} else {
COPY9_OR_10TO8(AV_RL16);
}
}
} else if(is9_OR_10BPS(c->dstFormat)) {
const int dst_depth = av_pix_fmt_descriptors[c->dstFormat].comp[plane].depth_minus1+1;
uint16_t *dstPtr2 = (uint16_t*)dstPtr;
if (is16BPS(c->srcFormat)) {
const uint16_t *srcPtr2 = (const uint16_t*)srcPtr;
#define COPY16TO9_OR_10(rfunc, wfunc) \
for (i = 0; i < height; i++) { \
for (j = 0; j < length; j++) { \
wfunc(&dstPtr2[j], rfunc(&srcPtr2[j])>>(16-dst_depth)); \
} \
dstPtr2 += dstStride[plane]/2; \
srcPtr2 += srcStride[plane]/2; \
}
if (isBE(c->dstFormat)) {
if (isBE(c->srcFormat)) {
COPY16TO9_OR_10(AV_RB16, AV_WB16);
} else {
COPY16TO9_OR_10(AV_RL16, AV_WB16);
}
} else {
if (isBE(c->srcFormat)) {
COPY16TO9_OR_10(AV_RB16, AV_WL16);
} else {
COPY16TO9_OR_10(AV_RL16, AV_WL16);
}
}
} else /* 8bit */ {
#define COPY8TO9_OR_10(wfunc) \
for (i = 0; i < height; i++) { \
for (j = 0; j < length; j++) { \
const int srcpx = srcPtr[j]; \
wfunc(&dstPtr2[j], (srcpx<<(dst_depth-8)) | (srcpx >> (16-dst_depth))); \
} \
dstPtr2 += dstStride[plane]/2; \
srcPtr += srcStride[plane]; \
}
if (isBE(c->dstFormat)) {
COPY8TO9_OR_10(AV_WB16);
} else {
COPY8TO9_OR_10(AV_WL16);
}
}
} else if(is16BPS(c->srcFormat) && !is16BPS(c->dstFormat)) {
if (!isBE(c->srcFormat)) srcPtr++;
for (i=0; i<height; i++) {
for (j=0; j<length; j++) dstPtr[j] = srcPtr[j<<1];
srcPtr+= srcStride[plane];
dstPtr+= dstStride[plane];
}
} else if(!is16BPS(c->srcFormat) && is16BPS(c->dstFormat)) {
for (i=0; i<height; i++) {
for (j=0; j<length; j++) {
dstPtr[ j<<1 ] = srcPtr[j];
dstPtr[(j<<1)+1] = srcPtr[j];
}
srcPtr+= srcStride[plane];
dstPtr+= dstStride[plane];
}
} 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;
}
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;
/* 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)
ff_bfin_get_unscaled_swscale(c);
if (HAVE_ALTIVEC)
ff_swscale_get_unscaled_altivec(c);
}
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;
if(c->srcFormat == PIX_FMT_PAL8) {
p=((const uint32_t*)(src[1]))[i];
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_Y400A) {
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);
switch(c->dstFormat) {
case PIX_FMT_BGR32:
#if !HAVE_BIGENDIAN
case PIX_FMT_RGB24:
#endif
c->pal_rgb[i]= r + (g<<8) + (b<<16);
break;
case PIX_FMT_BGR32_1:
#if HAVE_BIGENDIAN
case PIX_FMT_BGR24:
#endif
c->pal_rgb[i]= (r + (g<<8) + (b<<16)) << 8;
break;
case PIX_FMT_RGB32_1:
#if HAVE_BIGENDIAN
case PIX_FMT_RGB24:
#endif
c->pal_rgb[i]= (b + (g<<8) + (r<<16)) << 8;
break;
case PIX_FMT_RGB32:
#if !HAVE_BIGENDIAN
case PIX_FMT_BGR24:
#endif
default:
c->pal_rgb[i]= b + (g<<8) + (r<<16);
}
}
}
// 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);
}
}
/* Convert the palette to the same packed 32-bit format as the palette */
void sws_convertPalette8ToPacked32(const uint8_t *src, uint8_t *dst, int num_pixels, const uint8_t *palette)
{
int 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, int num_pixels, const uint8_t *palette)
{
int 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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