/*
* Copyright (C) 2001-2003 Michael Niedermayer <michaelni@gmx.at>
*
- * This file is part of FFmpeg.
+ * This file is part of Libav.
*
- * FFmpeg is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
+ * 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.
*
- * FFmpeg is distributed in the hope that it will be useful,
+ * 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 General Public License for more details.
+ * 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 General Public License
- * along with FFmpeg; if not, write to the Free Software
+ * 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
- *
- * the C code (not assembly, mmx, ...) of this file can be used
- * under the LGPL license too
*/
-/*
- 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}{1,4,8,15,16,24,32}
- 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 -> 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
-*/
-
-#define _SVID_SOURCE //needed for MAP_ANONYMOUS
+#include <assert.h>
#include <inttypes.h>
-#include <string.h>
#include <math.h>
#include <stdio.h>
-#include "config.h"
-#include <assert.h>
-#if HAVE_SYS_MMAN_H
-#include <sys/mman.h>
-#if defined(MAP_ANON) && !defined(MAP_ANONYMOUS)
-#define MAP_ANONYMOUS MAP_ANON
-#endif
-#endif
-#if HAVE_VIRTUALALLOC
-#define WIN32_LEAN_AND_MEAN
-#include <windows.h>
-#endif
-#include "swscale.h"
-#include "swscale_internal.h"
-#include "rgb2rgb.h"
-#include "libavutil/intreadwrite.h"
-#include "libavutil/x86_cpu.h"
+#include <string.h>
+
#include "libavutil/avutil.h"
#include "libavutil/bswap.h"
+#include "libavutil/cpu.h"
+#include "libavutil/intreadwrite.h"
+#include "libavutil/mathematics.h"
#include "libavutil/pixdesc.h"
+#include "config.h"
+#include "rgb2rgb.h"
+#include "swscale_internal.h"
+#include "swscale.h"
-unsigned swscale_version(void)
-{
- return LIBSWSCALE_VERSION_INT;
-}
-
-const char *swscale_configuration(void)
-{
- return FFMPEG_CONFIGURATION;
-}
-
-const char *swscale_license(void)
-{
-#define LICENSE_PREFIX "libswscale license: "
- return LICENSE_PREFIX FFMPEG_LICENSE + sizeof(LICENSE_PREFIX) - 1;
-}
-
-#undef MOVNTQ
-#undef PAVGB
-
-//#undef HAVE_MMX2
-//#define HAVE_AMD3DNOW
-//#undef HAVE_MMX
-//#undef ARCH_X86
-#define DITHER1XBPP
-
-#define FAST_BGR2YV12 // use 7 bit coefficients instead of 15 bit
-
-#define RET 0xC3 //near return opcode for x86
+DECLARE_ALIGNED(8, const uint8_t, ff_dither_8x8_128)[8][8] = {
+ { 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, },
+};
-#ifdef M_PI
-#define PI M_PI
-#else
-#define PI 3.14159265358979323846
-#endif
+DECLARE_ALIGNED(8, static const uint8_t, sws_pb_64)[8] = {
+ 64, 64, 64, 64, 64, 64, 64, 64
+};
-#define isSupportedIn(x) ( \
- (x)==PIX_FMT_YUV420P \
- || (x)==PIX_FMT_YUVA420P \
- || (x)==PIX_FMT_YUYV422 \
- || (x)==PIX_FMT_UYVY422 \
- || (x)==PIX_FMT_RGB48BE \
- || (x)==PIX_FMT_RGB48LE \
- || (x)==PIX_FMT_RGB32 \
- || (x)==PIX_FMT_RGB32_1 \
- || (x)==PIX_FMT_BGR24 \
- || (x)==PIX_FMT_BGR565 \
- || (x)==PIX_FMT_BGR555 \
- || (x)==PIX_FMT_BGR32 \
- || (x)==PIX_FMT_BGR32_1 \
- || (x)==PIX_FMT_RGB24 \
- || (x)==PIX_FMT_RGB565 \
- || (x)==PIX_FMT_RGB555 \
- || (x)==PIX_FMT_GRAY8 \
- || (x)==PIX_FMT_YUV410P \
- || (x)==PIX_FMT_YUV440P \
- || (x)==PIX_FMT_NV12 \
- || (x)==PIX_FMT_NV21 \
- || (x)==PIX_FMT_GRAY16BE \
- || (x)==PIX_FMT_GRAY16LE \
- || (x)==PIX_FMT_YUV444P \
- || (x)==PIX_FMT_YUV422P \
- || (x)==PIX_FMT_YUV411P \
- || (x)==PIX_FMT_PAL8 \
- || (x)==PIX_FMT_BGR8 \
- || (x)==PIX_FMT_RGB8 \
- || (x)==PIX_FMT_BGR4_BYTE \
- || (x)==PIX_FMT_RGB4_BYTE \
- || (x)==PIX_FMT_YUV440P \
- || (x)==PIX_FMT_MONOWHITE \
- || (x)==PIX_FMT_MONOBLACK \
- || (x)==PIX_FMT_YUV420P16LE \
- || (x)==PIX_FMT_YUV422P16LE \
- || (x)==PIX_FMT_YUV444P16LE \
- || (x)==PIX_FMT_YUV420P16BE \
- || (x)==PIX_FMT_YUV422P16BE \
- || (x)==PIX_FMT_YUV444P16BE \
- )
-
-int sws_isSupportedInput(enum PixelFormat pix_fmt)
+static av_always_inline void fillPlane(uint8_t *plane, int stride, int width,
+ int height, int y, uint8_t val)
{
- return isSupportedIn(pix_fmt);
+ int i;
+ uint8_t *ptr = plane + stride * y;
+ for (i = 0; i < height; i++) {
+ memset(ptr, val, width);
+ ptr += stride;
+ }
}
-#define isSupportedOut(x) ( \
- (x)==PIX_FMT_YUV420P \
- || (x)==PIX_FMT_YUVA420P \
- || (x)==PIX_FMT_YUYV422 \
- || (x)==PIX_FMT_UYVY422 \
- || (x)==PIX_FMT_YUV444P \
- || (x)==PIX_FMT_YUV422P \
- || (x)==PIX_FMT_YUV411P \
- || isRGB(x) \
- || isBGR(x) \
- || (x)==PIX_FMT_NV12 \
- || (x)==PIX_FMT_NV21 \
- || (x)==PIX_FMT_GRAY16BE \
- || (x)==PIX_FMT_GRAY16LE \
- || (x)==PIX_FMT_GRAY8 \
- || (x)==PIX_FMT_YUV410P \
- || (x)==PIX_FMT_YUV440P \
- || (x)==PIX_FMT_YUV420P16LE \
- || (x)==PIX_FMT_YUV422P16LE \
- || (x)==PIX_FMT_YUV444P16LE \
- || (x)==PIX_FMT_YUV420P16BE \
- || (x)==PIX_FMT_YUV422P16BE \
- || (x)==PIX_FMT_YUV444P16BE \
- )
-
-int sws_isSupportedOutput(enum PixelFormat pix_fmt)
+static void fill_plane9or10(uint8_t *plane, int stride, int width,
+ int height, int y, uint8_t val,
+ const int dst_depth, const int big_endian)
{
- return isSupportedOut(pix_fmt);
+ int i, j;
+ uint16_t *dst = (uint16_t *) (plane + stride * y);
+#define FILL8TO9_OR_10(wfunc) \
+ for (i = 0; i < height; i++) { \
+ for (j = 0; j < width; j++) { \
+ wfunc(&dst[j], (val << (dst_depth - 8)) | \
+ (val >> (16 - dst_depth))); \
+ } \
+ dst += stride / 2; \
+ }
+ if (big_endian) {
+ FILL8TO9_OR_10(AV_WB16);
+ } else {
+ FILL8TO9_OR_10(AV_WL16);
+ }
}
-#define isPacked(x) ( \
- (x)==PIX_FMT_PAL8 \
- || (x)==PIX_FMT_YUYV422 \
- || (x)==PIX_FMT_UYVY422 \
- || isRGB(x) \
- || isBGR(x) \
- )
-#define usePal(x) (av_pix_fmt_descriptors[x].flags & PIX_FMT_PAL)
-
-#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))
-
-extern const int32_t ff_yuv2rgb_coeffs[8][4];
-
-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},
- {0.7152, 0.0722, 0.2126, -0.386, 0.5, -0.115, -0.454, -0.046, 0.5},
- {0.587 , 0.114 , 0.299 , -0.331, 0.5, -0.169, -0.419, -0.081, 0.5},
- {0.587 , 0.114 , 0.299 , -0.331, 0.5, -0.169, -0.419, -0.081, 0.5},
- {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},
- {0.587 , 0.114 , 0.299 , -0.331, 0.5, -0.169, -0.419, -0.081, 0.5}, //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 && CONFIG_GPL
-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 && CONFIG_GPL */
-
-static SwsVector *sws_getConvVec(SwsVector *a, SwsVector *b);
-
-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_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
-
-const char *sws_format_name(enum PixelFormat format)
-{
- if ((unsigned)format < PIX_FMT_NB && av_pix_fmt_descriptors[format].name)
- return av_pix_fmt_descriptors[format].name;
- else
- return "Unknown format";
-}
-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)
+static void hScale16To19_c(SwsContext *c, int16_t *_dst, int dstW,
+ const uint8_t *_src, const int16_t *filter,
+ const int32_t *filterPos, int filterSize)
{
- //FIXME Optimize (just quickly written not optimized..)
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(c->srcFormat);
int i;
+ int32_t *dst = (int32_t *) _dst;
+ const uint16_t *src = (const uint16_t *) _src;
+ int bits = desc->comp[0].depth - 1;
+ int sh = bits - 4;
for (i = 0; i < dstW; i++) {
- int val = 1 << 10;
int j;
+ int srcPos = filterPos[i];
+ int val = 0;
- 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));
- }
+ for (j = 0; j < filterSize; j++) {
+ val += src[srcPos + j] * filter[filterSize * i + j];
}
+ // filter=14 bit, input=16 bit, output=30 bit, >> 11 makes 19 bit
+ dst[i] = FFMIN(val >> sh, (1 << 19) - 1);
}
+}
- if (CONFIG_SWSCALE_ALPHA && aDest) {
- for (i = 0; i < dstW; i++) {
- int val = 1 << 10;
- int j;
+static void hScale16To15_c(SwsContext *c, int16_t *dst, int dstW,
+ const uint8_t *_src, const int16_t *filter,
+ const int32_t *filterPos, int filterSize)
+{
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(c->srcFormat);
+ int i;
+ const uint16_t *src = (const uint16_t *) _src;
+ int sh = desc->comp[0].depth - 1;
- for (j = 0; j < lumFilterSize; j++)
- val += alpSrc[j][i] * lumFilter[j];
+ for (i = 0; i < dstW; i++) {
+ int j;
+ int srcPos = filterPos[i];
+ int val = 0;
- if (big_endian) {
- AV_WB16(&aDest[i], av_clip_uint16(val >> 11));
- } else {
- AV_WL16(&aDest[i], av_clip_uint16(val >> 11));
- }
+ for (j = 0; j < filterSize; j++) {
+ val += src[srcPos + j] * filter[filterSize * i + j];
}
+ // filter=14 bit, input=16 bit, output=30 bit, >> 15 makes 15 bit
+ dst[i] = FFMIN(val >> sh, (1 << 15) - 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 (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)
+// bilinear / bicubic scaling
+static void hScale8To15_c(SwsContext *c, int16_t *dst, int dstW,
+ const uint8_t *src, const int16_t *filter,
+ const int32_t *filterPos, int filterSize)
{
- //FIXME Optimize (just quickly written not optimized..)
int i;
- for (i=0; i<dstW; i++) {
- int val=1<<18;
+ for (i = 0; i < dstW; i++) {
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);
+ int srcPos = filterPos[i];
+ int val = 0;
+ for (j = 0; j < filterSize; j++) {
+ val += ((int)src[srcPos + j]) * filter[filterSize * i + j];
}
-
- 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);
- }
-
+ dst[i] = FFMIN(val >> 7, (1 << 15) - 1); // the cubic equation does overflow ...
+ }
}
-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)
+static void hScale8To19_c(SwsContext *c, int16_t *_dst, int dstW,
+ const uint8_t *src, const int16_t *filter,
+ const int32_t *filterPos, int filterSize)
{
- //FIXME Optimize (just quickly written not optimized..)
int i;
- for (i=0; i<dstW; i++) {
- int val=1<<18;
+ int32_t *dst = (int32_t *) _dst;
+ for (i = 0; i < dstW; i++) {
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; \
+ int srcPos = filterPos[i];
+ int val = 0;
+ for (j = 0; j < filterSize; j++) {
+ val += ((int)src[srcPos + j]) * filter[filterSize * i + j];
}
-
-#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++;\
- }\
+ dst[i] = FFMIN(val >> 3, (1 << 19) - 1); // the cubic equation does overflow ...
}
+}
-
-#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_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_RGB565:\
- case PIX_FMT_BGR565:\
- {\
- 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_RGB555:\
- case PIX_FMT_BGR555:\
- {\
- 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_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)
+// FIXME all pal and rgb srcFormats could do this conversion as well
+// FIXME all scalers more complex than bilinear could do half of this transform
+static void chrRangeToJpeg_c(int16_t *dstU, int16_t *dstV, int width)
{
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)
+ 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 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)
+static void chrRangeFromJpeg_c(int16_t *dstU, int16_t *dstV, int width)
{
int i;
- int step= fmt_depth(c->dstFormat)/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);
+ for (i = 0; i < width; i++) {
+ dstU[i] = (dstU[i] * 1799 + 4081085) >> 11; // 1469
+ dstV[i] = (dstV[i] * 1799 + 4081085) >> 11; // 1469
}
}
-static void fillPlane(uint8_t* plane, int stride, int width, int height, int y, uint8_t val)
+static void lumRangeToJpeg_c(int16_t *dst, int width)
{
int i;
- uint8_t *ptr = plane + stride*y;
- for (i=0; i<height; i++) {
- memset(ptr, val, width);
- ptr += stride;
- }
+ for (i = 0; i < width; i++)
+ dst[i] = (FFMIN(dst[i], 30189) * 19077 - 39057361) >> 14;
}
-static inline void rgb48ToY(uint8_t *dst, const uint8_t *src, int width,
- uint32_t *unused)
+static void lumRangeFromJpeg_c(int16_t *dst, int width)
{
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;
- }
+ for (i = 0; i < width; i++)
+ dst[i] = (dst[i] * 14071 + 33561947) >> 14;
}
-static inline void rgb48ToUV(uint8_t *dstU, uint8_t *dstV,
- const uint8_t *src1, const uint8_t *src2,
- int width, uint32_t *unused)
+static void chrRangeToJpeg16_c(int16_t *_dstU, int16_t *_dstV, int width)
{
int i;
- assert(src1==src2);
+ int32_t *dstU = (int32_t *) _dstU;
+ int32_t *dstV = (int32_t *) _dstV;
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;
+ dstU[i] = (FFMIN(dstU[i], 30775 << 4) * 4663 - (9289992 << 4)) >> 12; // -264
+ dstV[i] = (FFMIN(dstV[i], 30775 << 4) * 4663 - (9289992 << 4)) >> 12; // -264
}
}
-static inline void rgb48ToUV_half(uint8_t *dstU, uint8_t *dstV,
- const uint8_t *src1, const uint8_t *src2,
- int width, uint32_t *unused)
+static void chrRangeFromJpeg16_c(int16_t *_dstU, int16_t *_dstV, int width)
{
int i;
- assert(src1==src2);
+ int32_t *dstU = (int32_t *) _dstU;
+ int32_t *dstV = (int32_t *) _dstV;
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);
+ dstU[i] = (dstU[i] * 1799 + (4081085 << 4)) >> 11; // 1469
+ dstV[i] = (dstV[i] * 1799 + (4081085 << 4)) >> 11; // 1469
}
}
-#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, rgb32ToY, 0, 0,16, 0x00FF, 0xFF00, 0x00FF, RY<< 8, GY , BY<< 8, 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)
+static void lumRangeToJpeg16_c(int16_t *_dst, int width)
{
int i;
- for (i=0; i<width; i++) {
- dst[i]= src[4*i];
- }
-}
-
-#define BGR2UV(type, name, shr, shg, shb, maska, 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]&maskb)>>shb;\
- int g= (((const type*)src)[i]&maskg)>>shg;\
- int r= (((const type*)src)[i]&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];\
- int pix1= ((const type*)src)[2*i+1];\
- 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);\
- }\
+ int32_t *dst = (int32_t *) _dst;
+ for (i = 0; i < width; i++)
+ dst[i] = (FFMIN(dst[i], 30189 << 4) * 4769 - (39057361 << 2)) >> 12;
}
-BGR2UV(uint32_t, bgr32ToUV,16, 0, 0, 0xFF000000, 0xFF0000, 0xFF00, 0x00FF, RU<< 8, GU , BU<< 8, RV<< 8, GV , BV<< 8, RGB2YUV_SHIFT+8)
-BGR2UV(uint32_t, rgb32ToUV, 0, 0,16, 0xFF000000, 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, long width, uint32_t *pal)
+static void lumRangeFromJpeg16_c(int16_t *_dst, int width)
{
int i;
- for (i=0; i<width; i++) {
- int d= src[i];
-
- dst[i]= pal[d] & 0xFF;
- }
+ int32_t *dst = (int32_t *) _dst;
+ for (i = 0; i < width; i++)
+ dst[i] = (dst[i] * 14071 + (33561947 << 4)) >> 14;
}
-static inline void palToUV(uint8_t *dstU, uint8_t *dstV,
- const uint8_t *src1, const uint8_t *src2,
- long width, uint32_t *pal)
+static void hyscale_fast_c(SwsContext *c, int16_t *dst, int dstWidth,
+ const uint8_t *src, int srcW, int xInc)
{
int i;
- assert(src1 == src2);
- for (i=0; i<width; i++) {
- int p= pal[src1[i]];
-
- dstU[i]= p>>8;
- dstV[i]= p>>16;
+ 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;
}
}
-static inline void monowhite2Y(uint8_t *dst, const uint8_t *src, long width, uint32_t *unused)
+// *** horizontal scale Y line to temp buffer
+static av_always_inline void hyscale(SwsContext *c, int16_t *dst, int dstWidth,
+ const uint8_t *src_in[4],
+ int srcW, int xInc,
+ const int16_t *hLumFilter,
+ const int32_t *hLumFilterPos,
+ int hLumFilterSize,
+ uint8_t *formatConvBuffer,
+ uint32_t *pal, int isAlpha)
{
- 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;
- }
-}
+ void (*toYV12)(uint8_t *, const uint8_t *, int, uint32_t *) =
+ isAlpha ? c->alpToYV12 : c->lumToYV12;
+ void (*convertRange)(int16_t *, int) = isAlpha ? NULL : c->lumConvertRange;
+ const uint8_t *src = src_in[isAlpha ? 3 : 0];
-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;
+ if (toYV12) {
+ toYV12(formatConvBuffer, src, srcW, pal);
+ src = formatConvBuffer;
+ } else if (c->readLumPlanar && !isAlpha) {
+ c->readLumPlanar(formatConvBuffer, src_in, srcW);
+ src = formatConvBuffer;
+ } else if (c->readAlpPlanar && isAlpha) {
+ c->readAlpPlanar(formatConvBuffer, src_in, srcW);
+ src = formatConvBuffer;
}
-}
-
-//Note: we have C, MMX, MMX2, 3DNOW versions, there is no 3DNOW+MMX2 one
-//Plain C versions
-#if ((!HAVE_MMX || !CONFIG_GPL) && !HAVE_ALTIVEC) || CONFIG_RUNTIME_CPUDETECT
-#define COMPILE_C
-#endif
-
-#if ARCH_PPC
-#if HAVE_ALTIVEC || CONFIG_RUNTIME_CPUDETECT
-#define COMPILE_ALTIVEC
-#endif
-#endif //ARCH_PPC
-
-#if ARCH_X86
-
-#if ((HAVE_MMX && !HAVE_AMD3DNOW && !HAVE_MMX2) || CONFIG_RUNTIME_CPUDETECT) && CONFIG_GPL
-#define COMPILE_MMX
-#endif
-
-#if (HAVE_MMX2 || CONFIG_RUNTIME_CPUDETECT) && CONFIG_GPL
-#define COMPILE_MMX2
-#endif
-
-#if ((HAVE_AMD3DNOW && !HAVE_MMX2) || CONFIG_RUNTIME_CPUDETECT) && CONFIG_GPL
-#define COMPILE_3DNOW
-#endif
-#endif //ARCH_X86
-
-#define COMPILE_TEMPLATE_MMX 0
-#define COMPILE_TEMPLATE_MMX2 0
-#define COMPILE_TEMPLATE_AMD3DNOW 0
-#define COMPILE_TEMPLATE_ALTIVEC 0
-
-#ifdef COMPILE_C
-#define RENAME(a) a ## _C
-#include "swscale_template.c"
-#endif
-
-#ifdef 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
-#ifdef 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
-#ifdef 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
-#ifdef 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
+ if (!c->hyscale_fast) {
+ c->hyScale(c, dst, dstWidth, src, hLumFilter,
+ hLumFilterPos, hLumFilterSize);
+ } else { // fast bilinear upscale / crap downscale
+ c->hyscale_fast(c, dst, dstWidth, src, srcW, xInc);
+ }
-static double getSplineCoeff(double a, double b, double c, double d, double dist)
-{
-// printf("%f %f %f %f %f\n", a,b,c,d,dist);
- if (dist<=1.0) return ((d*dist + c)*dist + b)*dist +a;
- else return getSplineCoeff( 0.0,
- b+ 2.0*c + 3.0*d,
- c + 3.0*d,
- -b- 3.0*c - 6.0*d,
- dist-1.0);
+ if (convertRange)
+ convertRange(dst, dstWidth);
}
-static int initFilter(int16_t **outFilter, int16_t **filterPos, int *outFilterSize, int xInc,
- int srcW, int dstW, int filterAlign, int one, int flags,
- SwsVector *srcFilter, SwsVector *dstFilter, double param[2])
+static 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;
- int filterSize;
- int filter2Size;
- int minFilterSize;
- int64_t *filter=NULL;
- int64_t *filter2=NULL;
- const int64_t fone= 1LL<<54;
- int ret= -1;
-#if ARCH_X86
- if (flags & SWS_CPU_CAPS_MMX)
- __asm__ volatile("emms\n\t"::: "memory"); //FIXME this should not be required but it IS (even for non-MMX versions)
-#endif
-
- // NOTE: the +1 is for the MMX scaler which reads over the end
- FF_ALLOC_OR_GOTO(NULL, *filterPos, (dstW+1)*sizeof(int16_t), fail);
-
- if (FFABS(xInc - 0x10000) <10) { // unscaled
- int i;
- filterSize= 1;
- FF_ALLOCZ_OR_GOTO(NULL, filter, dstW*sizeof(*filter)*filterSize, fail);
-
- for (i=0; i<dstW; i++) {
- filter[i*filterSize]= fone;
- (*filterPos)[i]=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;
+ }
+}
+
+static av_always_inline void hcscale(SwsContext *c, int16_t *dst1,
+ int16_t *dst2, int dstWidth,
+ const uint8_t *src_in[4],
+ int srcW, int xInc,
+ const int16_t *hChrFilter,
+ const int32_t *hChrFilterPos,
+ int hChrFilterSize,
+ uint8_t *formatConvBuffer, uint32_t *pal)
+{
+ const uint8_t *src1 = src_in[1], *src2 = src_in[2];
+ if (c->chrToYV12) {
+ uint8_t *buf2 = formatConvBuffer +
+ FFALIGN(srcW * FFALIGN(c->srcBpc, 8) >> 3, 16);
+ c->chrToYV12(formatConvBuffer, buf2, src1, src2, srcW, pal);
+ src1 = formatConvBuffer;
+ src2 = buf2;
+ } else if (c->readChrPlanar) {
+ uint8_t *buf2 = formatConvBuffer +
+ FFALIGN(srcW * FFALIGN(c->srcBpc, 8) >> 3, 16);
+ c->readChrPlanar(formatConvBuffer, buf2, src_in, srcW);
+ src1 = formatConvBuffer;
+ src2 = buf2;
+ }
+
+ if (!c->hcscale_fast) {
+ c->hcScale(c, dst1, dstWidth, src1, hChrFilter, hChrFilterPos, hChrFilterSize);
+ c->hcScale(c, dst2, dstWidth, src2, 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(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 AVPixelFormat dstFormat = c->dstFormat;
+ const int flags = c->flags;
+ int32_t *vLumFilterPos = c->vLumFilterPos;
+ int32_t *vChrFilterPos = c->vChrFilterPos;
+ int32_t *hLumFilterPos = c->hLumFilterPos;
+ int32_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;
+ 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;
+ uint32_t *pal = c->pal_yuv;
+ yuv2planar1_fn yuv2plane1 = c->yuv2plane1;
+ yuv2planarX_fn yuv2planeX = c->yuv2planeX;
+ yuv2interleavedX_fn yuv2nv12cX = c->yuv2nv12cX;
+ yuv2packed1_fn yuv2packed1 = c->yuv2packed1;
+ yuv2packed2_fn yuv2packed2 = c->yuv2packed2;
+ yuv2packedX_fn yuv2packedX = c->yuv2packedX;
+ yuv2anyX_fn yuv2anyX = c->yuv2anyX;
+ const int chrSrcSliceY = srcSliceY >> c->chrSrcVSubSample;
+ const int chrSrcSliceH = -((-srcSliceH) >> c->chrSrcVSubSample);
+ int should_dither = is9_OR_10BPS(c->srcFormat) ||
+ is16BPS(c->srcFormat);
+ int lastDstY;
+
+ /* 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 maybe move this into the context
+ 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;
+ }
+
+ if (!should_dither) {
+ c->chrDither8 = c->lumDither8 = sws_pb_64;
+ }
+ lastDstY = dstY;
+
+ for (; dstY < dstH; dstY++) {
+ const int chrDstY = dstY >> c->chrDstVSubSample;
+ uint8_t *dest[4] = {
+ dst[0] + dstStride[0] * dstY,
+ dst[1] + dstStride[1] * chrDstY,
+ dst[2] + dstStride[2] * chrDstY,
+ (CONFIG_SWSCALE_ALPHA && alpPixBuf) ? dst[3] + dstStride[3] * dstY : NULL,
+ };
+
+ // First line needed as input
+ const int firstLumSrcY = FFMAX(1 - vLumFilterSize, vLumFilterPos[dstY]);
+ const int firstLumSrcY2 = FFMAX(1 - vLumFilterSize, vLumFilterPos[FFMIN(dstY | ((1 << c->chrDstVSubSample) - 1), dstH - 1)]);
+ // First line needed as input
+ const int firstChrSrcY = FFMAX(1 - vChrFilterSize, vChrFilterPos[chrDstY]);
+
+ // Last line needed as input
+ int lastLumSrcY = FFMIN(c->srcH, firstLumSrcY + vLumFilterSize) - 1;
+ int lastLumSrcY2 = FFMIN(c->srcH, firstLumSrcY2 + vLumFilterSize) - 1;
+ int lastChrSrcY = FFMIN(c->chrSrcH, firstChrSrcY + vChrFilterSize) - 1;
+ 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[4] = {
+ src[0] + (lastInLumBuf + 1 - srcSliceY) * srcStride[0],
+ src[1] + (lastInLumBuf + 1 - srcSliceY) * srcStride[1],
+ src[2] + (lastInLumBuf + 1 - srcSliceY) * srcStride[2],
+ src[3] + (lastInLumBuf + 1 - srcSliceY) * srcStride[3],
+ };
+ lumBufIndex++;
+ assert(lumBufIndex < 2 * vLumBufSize);
+ assert(lastInLumBuf + 1 - srcSliceY < srcSliceH);
+ assert(lastInLumBuf + 1 - srcSliceY >= 0);
+ hyscale(c, lumPixBuf[lumBufIndex], dstW, src1, srcW, lumXInc,
+ hLumFilter, hLumFilterPos, hLumFilterSize,
+ formatConvBuffer, pal, 0);
+ if (CONFIG_SWSCALE_ALPHA && alpPixBuf)
+ hyscale(c, alpPixBuf[lumBufIndex], dstW, src1, 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[4] = {
+ src[0] + (lastInChrBuf + 1 - chrSrcSliceY) * srcStride[0],
+ src[1] + (lastInChrBuf + 1 - chrSrcSliceY) * srcStride[1],
+ src[2] + (lastInChrBuf + 1 - chrSrcSliceY) * srcStride[2],
+ src[3] + (lastInChrBuf + 1 - chrSrcSliceY) * srcStride[3],
+ };
+ 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, chrUPixBuf[chrBufIndex], chrVPixBuf[chrBufIndex],
+ chrDstW, src1, 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_INLINE
+ updateMMXDitherTables(c, dstY, lumBufIndex, chrBufIndex,
+ lastInLumBuf, lastInChrBuf);
+#endif
+ if (should_dither) {
+ c->chrDither8 = ff_dither_8x8_128[chrDstY & 7];
+ c->lumDither8 = ff_dither_8x8_128[dstY & 7];
+ }
+ if (dstY >= dstH - 2) {
+ /* hmm looks like we can't use MMX here without overwriting
+ * this array's tail */
+ ff_sws_init_output_funcs(c, &yuv2plane1, &yuv2planeX, &yuv2nv12cX,
+ &yuv2packed1, &yuv2packed2, &yuv2packedX, &yuv2anyX);
}
- } else if (flags&SWS_POINT) { // lame looking point sampling mode
- int i;
- int xDstInSrc;
- filterSize= 1;
- FF_ALLOC_OR_GOTO(NULL, filter, dstW*sizeof(*filter)*filterSize, fail);
-
- xDstInSrc= xInc/2 - 0x8000;
- for (i=0; i<dstW; i++) {
- int xx= (xDstInSrc - ((filterSize-1)<<15) + (1<<15))>>16;
-
- (*filterPos)[i]= xx;
- filter[i]= fone;
- xDstInSrc+= xInc;
- }
- } else if ((xInc <= (1<<16) && (flags&SWS_AREA)) || (flags&SWS_FAST_BILINEAR)) { // bilinear upscale
- int i;
- int xDstInSrc;
- filterSize= 2;
- FF_ALLOC_OR_GOTO(NULL, filter, dstW*sizeof(*filter)*filterSize, fail);
-
- xDstInSrc= xInc/2 - 0x8000;
- for (i=0; i<dstW; i++) {
- int xx= (xDstInSrc - ((filterSize-1)<<15) + (1<<15))>>16;
- int j;
-
- (*filterPos)[i]= xx;
- //bilinear upscale / linear interpolate / area averaging
- for (j=0; j<filterSize; j++) {
- int64_t coeff= fone - FFABS((xx<<16) - xDstInSrc)*(fone>>16);
- if (coeff<0) coeff=0;
- filter[i*filterSize + j]= coeff;
- xx++;
+ {
+ 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 (firstLumSrcY < 0 || firstLumSrcY + vLumFilterSize > c->srcH) {
+ const int16_t **tmpY = (const int16_t **)lumPixBuf +
+ 2 * vLumBufSize;
+ int neg = -firstLumSrcY, i;
+ int end = FFMIN(c->srcH - firstLumSrcY, vLumFilterSize);
+ for (i = 0; i < neg; i++)
+ tmpY[i] = lumSrcPtr[neg];
+ for (; i < end; i++)
+ tmpY[i] = lumSrcPtr[i];
+ for (; i < vLumFilterSize; i++)
+ tmpY[i] = tmpY[i - 1];
+ lumSrcPtr = tmpY;
+
+ if (alpSrcPtr) {
+ const int16_t **tmpA = (const int16_t **)alpPixBuf +
+ 2 * vLumBufSize;
+ for (i = 0; i < neg; i++)
+ tmpA[i] = alpSrcPtr[neg];
+ for (; i < end; i++)
+ tmpA[i] = alpSrcPtr[i];
+ for (; i < vLumFilterSize; i++)
+ tmpA[i] = tmpA[i - 1];
+ alpSrcPtr = tmpA;
+ }
}
- xDstInSrc+= xInc;
- }
- } else {
- int xDstInSrc;
- int sizeFactor;
-
- if (flags&SWS_BICUBIC) sizeFactor= 4;
- else if (flags&SWS_X) sizeFactor= 8;
- else if (flags&SWS_AREA) sizeFactor= 1; //downscale only, for upscale it is bilinear
- else if (flags&SWS_GAUSS) sizeFactor= 8; // infinite ;)
- else if (flags&SWS_LANCZOS) sizeFactor= param[0] != SWS_PARAM_DEFAULT ? ceil(2*param[0]) : 6;
- else if (flags&SWS_SINC) sizeFactor= 20; // infinite ;)
- else if (flags&SWS_SPLINE) sizeFactor= 20; // infinite ;)
- else if (flags&SWS_BILINEAR) sizeFactor= 2;
- else {
- sizeFactor= 0; //GCC warning killer
- assert(0);
- }
-
- if (xInc <= 1<<16) filterSize= 1 + sizeFactor; // upscale
- else filterSize= 1 + (sizeFactor*srcW + dstW - 1)/ dstW;
-
- if (filterSize > srcW-2) filterSize=srcW-2;
-
- FF_ALLOC_OR_GOTO(NULL, filter, dstW*sizeof(*filter)*filterSize, fail);
-
- xDstInSrc= xInc - 0x10000;
- for (i=0; i<dstW; i++) {
- int xx= (xDstInSrc - ((filterSize-2)<<16)) / (1<<17);
- int j;
- (*filterPos)[i]= xx;
- for (j=0; j<filterSize; j++) {
- int64_t d= ((int64_t)FFABS((xx<<17) - xDstInSrc))<<13;
- double floatd;
- int64_t coeff;
-
- if (xInc > 1<<16)
- d= d*dstW/srcW;
- floatd= d * (1.0/(1<<30));
-
- if (flags & SWS_BICUBIC) {
- int64_t B= (param[0] != SWS_PARAM_DEFAULT ? param[0] : 0) * (1<<24);
- int64_t C= (param[1] != SWS_PARAM_DEFAULT ? param[1] : 0.6) * (1<<24);
- int64_t dd = ( d*d)>>30;
- int64_t ddd= (dd*d)>>30;
-
- if (d < 1LL<<30)
- coeff = (12*(1<<24)-9*B-6*C)*ddd + (-18*(1<<24)+12*B+6*C)*dd + (6*(1<<24)-2*B)*(1<<30);
- else if (d < 1LL<<31)
- coeff = (-B-6*C)*ddd + (6*B+30*C)*dd + (-12*B-48*C)*d + (8*B+24*C)*(1<<30);
- else
- coeff=0.0;
- coeff *= fone>>(30+24);
+ if (firstChrSrcY < 0 ||
+ firstChrSrcY + vChrFilterSize > c->chrSrcH) {
+ const int16_t **tmpU = (const int16_t **)chrUPixBuf + 2 * vChrBufSize,
+ **tmpV = (const int16_t **)chrVPixBuf + 2 * vChrBufSize;
+ int neg = -firstChrSrcY, i;
+ int end = FFMIN(c->chrSrcH - firstChrSrcY, vChrFilterSize);
+ for (i = 0; i < neg; i++) {
+ tmpU[i] = chrUSrcPtr[neg];
+ tmpV[i] = chrVSrcPtr[neg];
}
-/* else if (flags & SWS_X) {
- double p= param ? param*0.01 : 0.3;
- coeff = d ? sin(d*PI)/(d*PI) : 1.0;
- coeff*= pow(2.0, - p*d*d);
- }*/
- else if (flags & SWS_X) {
- double A= param[0] != SWS_PARAM_DEFAULT ? param[0] : 1.0;
- double c;
-
- if (floatd<1.0)
- c = cos(floatd*PI);
- else
- c=-1.0;
- if (c<0.0) c= -pow(-c, A);
- else c= pow( c, A);
- coeff= (c*0.5 + 0.5)*fone;
- } else if (flags & SWS_AREA) {
- int64_t d2= d - (1<<29);
- if (d2*xInc < -(1LL<<(29+16))) coeff= 1.0 * (1LL<<(30+16));
- else if (d2*xInc < (1LL<<(29+16))) coeff= -d2*xInc + (1LL<<(29+16));
- else coeff=0.0;
- coeff *= fone>>(30+16);
- } else if (flags & SWS_GAUSS) {
- double p= param[0] != SWS_PARAM_DEFAULT ? param[0] : 3.0;
- coeff = (pow(2.0, - p*floatd*floatd))*fone;
- } else if (flags & SWS_SINC) {
- coeff = (d ? sin(floatd*PI)/(floatd*PI) : 1.0)*fone;
- } else if (flags & SWS_LANCZOS) {
- double p= param[0] != SWS_PARAM_DEFAULT ? param[0] : 3.0;
- coeff = (d ? sin(floatd*PI)*sin(floatd*PI/p)/(floatd*floatd*PI*PI/p) : 1.0)*fone;
- if (floatd>p) coeff=0;
- } else if (flags & SWS_BILINEAR) {
- coeff= (1<<30) - d;
- if (coeff<0) coeff=0;
- coeff *= fone >> 30;
- } else if (flags & SWS_SPLINE) {
- double p=-2.196152422706632;
- coeff = getSplineCoeff(1.0, 0.0, p, -p-1.0, floatd) * fone;
- } else {
- coeff= 0.0; //GCC warning killer
- assert(0);
+ for (; i < end; i++) {
+ tmpU[i] = chrUSrcPtr[i];
+ tmpV[i] = chrVSrcPtr[i];
}
-
- filter[i*filterSize + j]= coeff;
- xx++;
- }
- xDstInSrc+= 2*xInc;
- }
- }
-
- /* apply src & dst Filter to filter -> filter2
- av_free(filter);
- */
- assert(filterSize>0);
- filter2Size= filterSize;
- if (srcFilter) filter2Size+= srcFilter->length - 1;
- if (dstFilter) filter2Size+= dstFilter->length - 1;
- assert(filter2Size>0);
- FF_ALLOCZ_OR_GOTO(NULL, filter2, filter2Size*dstW*sizeof(*filter2), fail);
-
- for (i=0; i<dstW; i++) {
- int j, k;
-
- if(srcFilter) {
- for (k=0; k<srcFilter->length; k++) {
- for (j=0; j<filterSize; j++)
- filter2[i*filter2Size + k + j] += srcFilter->coeff[k]*filter[i*filterSize + j];
+ for (; i < vChrFilterSize; i++) {
+ tmpU[i] = tmpU[i - 1];
+ tmpV[i] = tmpV[i - 1];
+ }
+ chrUSrcPtr = tmpU;
+ chrVSrcPtr = tmpV;
}
- } else {
- for (j=0; j<filterSize; j++)
- filter2[i*filter2Size + j]= filter[i*filterSize + j];
- }
- //FIXME dstFilter
-
- (*filterPos)[i]+= (filterSize-1)/2 - (filter2Size-1)/2;
- }
- av_freep(&filter);
- /* try to reduce the filter-size (step1 find size and shift left) */
- // Assume it is near normalized (*0.5 or *2.0 is OK but * 0.001 is not).
- minFilterSize= 0;
- for (i=dstW-1; i>=0; i--) {
- int min= filter2Size;
- int j;
- int64_t cutOff=0.0;
-
- /* get rid of near zero elements on the left by shifting left */
- for (j=0; j<filter2Size; j++) {
- int k;
- cutOff += FFABS(filter2[i*filter2Size]);
-
- if (cutOff > SWS_MAX_REDUCE_CUTOFF*fone) break;
-
- /* preserve monotonicity because the core can't handle the filter otherwise */
- if (i<dstW-1 && (*filterPos)[i] >= (*filterPos)[i+1]) break;
+ if (isPlanarYUV(dstFormat) ||
+ (isGray(dstFormat) && !isALPHA(dstFormat))) { // YV12 like
+ const int chrSkipMask = (1 << c->chrDstVSubSample) - 1;
- // move filter coefficients left
- for (k=1; k<filter2Size; k++)
- filter2[i*filter2Size + k - 1]= filter2[i*filter2Size + k];
- filter2[i*filter2Size + k - 1]= 0;
- (*filterPos)[i]++;
- }
+ if (vLumFilterSize == 1) {
+ yuv2plane1(lumSrcPtr[0], dest[0], dstW, c->lumDither8, 0);
+ } else {
+ yuv2planeX(vLumFilter + dstY * vLumFilterSize,
+ vLumFilterSize, lumSrcPtr, dest[0],
+ dstW, c->lumDither8, 0);
+ }
- cutOff=0;
- /* count near zeros on the right */
- for (j=filter2Size-1; j>0; j--) {
- cutOff += FFABS(filter2[i*filter2Size + j]);
+ if (!((dstY & chrSkipMask) || isGray(dstFormat))) {
+ if (yuv2nv12cX) {
+ yuv2nv12cX(c, vChrFilter + chrDstY * vChrFilterSize,
+ vChrFilterSize, chrUSrcPtr, chrVSrcPtr,
+ dest[1], chrDstW);
+ } else if (vChrFilterSize == 1) {
+ yuv2plane1(chrUSrcPtr[0], dest[1], chrDstW, c->chrDither8, 0);
+ yuv2plane1(chrVSrcPtr[0], dest[2], chrDstW, c->chrDither8, 3);
+ } else {
+ yuv2planeX(vChrFilter + chrDstY * vChrFilterSize,
+ vChrFilterSize, chrUSrcPtr, dest[1],
+ chrDstW, c->chrDither8, 0);
+ yuv2planeX(vChrFilter + chrDstY * vChrFilterSize,
+ vChrFilterSize, chrVSrcPtr, dest[2],
+ chrDstW, c->chrDither8, 3);
+ }
+ }
- if (cutOff > SWS_MAX_REDUCE_CUTOFF*fone) break;
- min--;
+ if (CONFIG_SWSCALE_ALPHA && alpPixBuf) {
+ if (vLumFilterSize == 1) {
+ yuv2plane1(alpSrcPtr[0], dest[3], dstW,
+ c->lumDither8, 0);
+ } else {
+ yuv2planeX(vLumFilter + dstY * vLumFilterSize,
+ vLumFilterSize, alpSrcPtr, dest[3],
+ dstW, c->lumDither8, 0);
+ }
+ }
+ } else if (yuv2packedX) {
+ if (c->yuv2packed1 && vLumFilterSize == 1 &&
+ vChrFilterSize <= 2) { // unscaled RGB
+ int chrAlpha = vChrFilterSize == 1 ? 0 : vChrFilter[2 * dstY + 1];
+ yuv2packed1(c, *lumSrcPtr, chrUSrcPtr, chrVSrcPtr,
+ alpPixBuf ? *alpSrcPtr : NULL,
+ dest[0], dstW, chrAlpha, dstY);
+ } else if (c->yuv2packed2 && 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;
+ yuv2packed2(c, lumSrcPtr, chrUSrcPtr, chrVSrcPtr,
+ alpPixBuf ? alpSrcPtr : NULL,
+ dest[0], dstW, lumAlpha, chrAlpha, dstY);
+ } else { // general RGB
+ yuv2packedX(c, vLumFilter + dstY * vLumFilterSize,
+ lumSrcPtr, vLumFilterSize,
+ vChrFilter + dstY * vChrFilterSize,
+ chrUSrcPtr, chrVSrcPtr, vChrFilterSize,
+ alpSrcPtr, dest[0], dstW, dstY);
+ }
+ } else {
+ yuv2anyX(c, vLumFilter + dstY * vLumFilterSize,
+ lumSrcPtr, vLumFilterSize,
+ vChrFilter + dstY * vChrFilterSize,
+ chrUSrcPtr, chrVSrcPtr, vChrFilterSize,
+ alpSrcPtr, dest, dstW, dstY);
+ }
}
-
- if (min>minFilterSize) minFilterSize= min;
}
- if (flags & SWS_CPU_CAPS_ALTIVEC) {
- // we can handle the special case 4,
- // so we don't want to go to the full 8
- if (minFilterSize < 5)
- filterAlign = 4;
-
- // We really don't want to waste our time
- // doing useless computation, so fall back on
- // the scalar C code for very small filters.
- // Vectorizing is worth it only if you have a
- // decent-sized vector.
- if (minFilterSize < 3)
- filterAlign = 1;
- }
+ if (isPlanar(dstFormat) && isALPHA(dstFormat) && !alpPixBuf) {
+ int length = dstW;
+ int height = dstY - lastDstY;
+ if (is16BPS(c->dstFormat))
+ length *= 2;
- if (flags & SWS_CPU_CAPS_MMX) {
- // special case for unscaled vertical filtering
- if (minFilterSize == 1 && filterAlign == 2)
- filterAlign= 1;
+ if (is9_OR_10BPS(dstFormat)) {
+ const AVPixFmtDescriptor *desc = av_pix_fmt_desc_get(dstFormat);
+ fill_plane9or10(dst[3], dstStride[3], length, height, lastDstY,
+ 255, desc->comp[3].depth, isBE(dstFormat));
+ } else
+ fillPlane(dst[3], dstStride[3], length, height, lastDstY, 255);
}
- assert(minFilterSize > 0);
- filterSize= (minFilterSize +(filterAlign-1)) & (~(filterAlign-1));
- assert(filterSize > 0);
- filter= av_malloc(filterSize*dstW*sizeof(*filter));
- if (filterSize >= MAX_FILTER_SIZE*16/((flags&SWS_ACCURATE_RND) ? APCK_SIZE : 16) || !filter)
- goto fail;
- *outFilterSize= filterSize;
-
- if (flags&SWS_PRINT_INFO)
- av_log(NULL, AV_LOG_VERBOSE, "SwScaler: reducing / aligning filtersize %d -> %d\n", filter2Size, filterSize);
- /* try to reduce the filter-size (step2 reduce it) */
- for (i=0; i<dstW; i++) {
- int j;
+#if HAVE_MMXEXT_INLINE
+ if (av_get_cpu_flags() & AV_CPU_FLAG_MMXEXT)
+ __asm__ volatile ("sfence" ::: "memory");
+#endif
+ emms_c();
- for (j=0; j<filterSize; j++) {
- if (j>=filter2Size) filter[i*filterSize + j]= 0;
- else filter[i*filterSize + j]= filter2[i*filter2Size + j];
- if((flags & SWS_BITEXACT) && j>=minFilterSize)
- filter[i*filterSize + j]= 0;
- }
- }
+ /* 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;
+}
- //FIXME try to align filterPos if possible
+static av_cold void sws_init_swscale(SwsContext *c)
+{
+ enum AVPixelFormat srcFormat = c->srcFormat;
- //fix borders
- for (i=0; i<dstW; i++) {
- int j;
- if ((*filterPos)[i] < 0) {
- // move filter coefficients left to compensate for filterPos
- for (j=1; j<filterSize; j++) {
- int left= FFMAX(j + (*filterPos)[i], 0);
- filter[i*filterSize + left] += filter[i*filterSize + j];
- filter[i*filterSize + j]=0;
- }
- (*filterPos)[i]= 0;
- }
+ ff_sws_init_output_funcs(c, &c->yuv2plane1, &c->yuv2planeX,
+ &c->yuv2nv12cX, &c->yuv2packed1,
+ &c->yuv2packed2, &c->yuv2packedX, &c->yuv2anyX);
- if ((*filterPos)[i] + filterSize > srcW) {
- int shift= (*filterPos)[i] + filterSize - srcW;
- // move filter coefficients right to compensate for filterPos
- for (j=filterSize-2; j>=0; j--) {
- int right= FFMIN(j + shift, filterSize-1);
- filter[i*filterSize +right] += filter[i*filterSize +j];
- filter[i*filterSize +j]=0;
+ ff_sws_init_input_funcs(c);
+
+ if (c->srcBpc == 8) {
+ if (c->dstBpc <= 10) {
+ c->hyScale = c->hcScale = hScale8To15_c;
+ if (c->flags & SWS_FAST_BILINEAR) {
+ c->hyscale_fast = hyscale_fast_c;
+ c->hcscale_fast = hcscale_fast_c;
}
- (*filterPos)[i]= srcW - filterSize;
+ } else {
+ c->hyScale = c->hcScale = hScale8To19_c;
}
+ } else {
+ c->hyScale = c->hcScale = c->dstBpc > 10 ? hScale16To19_c
+ : hScale16To15_c;
}
- // Note the +1 is for the MMX scaler which reads over the end
- /* align at 16 for AltiVec (needed by hScale_altivec_real) */
- FF_ALLOCZ_OR_GOTO(NULL, *outFilter, *outFilterSize*(dstW+1)*sizeof(int16_t), fail);
-
- /* normalize & store in outFilter */
- for (i=0; i<dstW; i++) {
- int j;
- int64_t error=0;
- int64_t sum=0;
-
- for (j=0; j<filterSize; j++) {
- sum+= filter[i*filterSize + j];
- }
- sum= (sum + one/2)/ one;
- for (j=0; j<*outFilterSize; j++) {
- int64_t v= filter[i*filterSize + j] + error;
- int intV= ROUNDED_DIV(v, sum);
- (*outFilter)[i*(*outFilterSize) + j]= intV;
- error= v - intV*sum;
+ if (c->srcRange != c->dstRange && !isAnyRGB(c->dstFormat)) {
+ if (c->dstBpc <= 10) {
+ if (c->srcRange) {
+ c->lumConvertRange = lumRangeFromJpeg_c;
+ c->chrConvertRange = chrRangeFromJpeg_c;
+ } else {
+ c->lumConvertRange = lumRangeToJpeg_c;
+ c->chrConvertRange = chrRangeToJpeg_c;
+ }
+ } else {
+ if (c->srcRange) {
+ c->lumConvertRange = lumRangeFromJpeg16_c;
+ c->chrConvertRange = chrRangeFromJpeg16_c;
+ } else {
+ c->lumConvertRange = lumRangeToJpeg16_c;
+ c->chrConvertRange = chrRangeToJpeg16_c;
+ }
}
}
- (*filterPos)[dstW]= (*filterPos)[dstW-1]; // the MMX scaler will read over the end
- for (i=0; i<*outFilterSize; i++) {
- int j= dstW*(*outFilterSize);
- (*outFilter)[j + i]= (*outFilter)[j + i - (*outFilterSize)];
- }
-
- ret=0;
-fail:
- av_free(filter);
- av_free(filter2);
- return ret;
+ if (!(isGray(srcFormat) || isGray(c->dstFormat) ||
+ srcFormat == AV_PIX_FMT_MONOBLACK || srcFormat == AV_PIX_FMT_MONOWHITE))
+ c->needs_hcscale = 1;
}
-#ifdef COMPILE_MMX2
-static int initMMX2HScaler(int dstW, int xInc, uint8_t *filterCode, int16_t *filter, int32_t *filterPos, int numSplits)
+SwsFunc ff_getSwsFunc(SwsContext *c)
{
- uint8_t *fragmentA;
- x86_reg imm8OfPShufW1A;
- x86_reg imm8OfPShufW2A;
- x86_reg fragmentLengthA;
- uint8_t *fragmentB;
- x86_reg imm8OfPShufW1B;
- x86_reg imm8OfPShufW2B;
- x86_reg fragmentLengthB;
- int fragmentPos;
-
- int xpos, i;
-
- // create an optimized horizontal scaling routine
- /* This scaler is made of runtime-generated MMX2 code using specially
- * tuned pshufw instructions. For every four output pixels, if four
- * input pixels are enough for the fast bilinear scaling, then a chunk
- * of fragmentB is used. If five input pixels are needed, then a chunk
- * of fragmentA is used.
- */
-
- //code fragment
-
- __asm__ volatile(
- "jmp 9f \n\t"
- // Begin
- "0: \n\t"
- "movq (%%"REG_d", %%"REG_a"), %%mm3 \n\t"
- "movd (%%"REG_c", %%"REG_S"), %%mm0 \n\t"
- "movd 1(%%"REG_c", %%"REG_S"), %%mm1 \n\t"
- "punpcklbw %%mm7, %%mm1 \n\t"
- "punpcklbw %%mm7, %%mm0 \n\t"
- "pshufw $0xFF, %%mm1, %%mm1 \n\t"
- "1: \n\t"
- "pshufw $0xFF, %%mm0, %%mm0 \n\t"
- "2: \n\t"
- "psubw %%mm1, %%mm0 \n\t"
- "movl 8(%%"REG_b", %%"REG_a"), %%esi \n\t"
- "pmullw %%mm3, %%mm0 \n\t"
- "psllw $7, %%mm1 \n\t"
- "paddw %%mm1, %%mm0 \n\t"
-
- "movq %%mm0, (%%"REG_D", %%"REG_a") \n\t"
-
- "add $8, %%"REG_a" \n\t"
- // End
- "9: \n\t"
-// "int $3 \n\t"
- "lea " LOCAL_MANGLE(0b) ", %0 \n\t"
- "lea " LOCAL_MANGLE(1b) ", %1 \n\t"
- "lea " LOCAL_MANGLE(2b) ", %2 \n\t"
- "dec %1 \n\t"
- "dec %2 \n\t"
- "sub %0, %1 \n\t"
- "sub %0, %2 \n\t"
- "lea " LOCAL_MANGLE(9b) ", %3 \n\t"
- "sub %0, %3 \n\t"
-
-
- :"=r" (fragmentA), "=r" (imm8OfPShufW1A), "=r" (imm8OfPShufW2A),
- "=r" (fragmentLengthA)
- );
-
- __asm__ volatile(
- "jmp 9f \n\t"
- // Begin
- "0: \n\t"
- "movq (%%"REG_d", %%"REG_a"), %%mm3 \n\t"
- "movd (%%"REG_c", %%"REG_S"), %%mm0 \n\t"
- "punpcklbw %%mm7, %%mm0 \n\t"
- "pshufw $0xFF, %%mm0, %%mm1 \n\t"
- "1: \n\t"
- "pshufw $0xFF, %%mm0, %%mm0 \n\t"
- "2: \n\t"
- "psubw %%mm1, %%mm0 \n\t"
- "movl 8(%%"REG_b", %%"REG_a"), %%esi \n\t"
- "pmullw %%mm3, %%mm0 \n\t"
- "psllw $7, %%mm1 \n\t"
- "paddw %%mm1, %%mm0 \n\t"
-
- "movq %%mm0, (%%"REG_D", %%"REG_a") \n\t"
-
- "add $8, %%"REG_a" \n\t"
- // End
- "9: \n\t"
-// "int $3 \n\t"
- "lea " LOCAL_MANGLE(0b) ", %0 \n\t"
- "lea " LOCAL_MANGLE(1b) ", %1 \n\t"
- "lea " LOCAL_MANGLE(2b) ", %2 \n\t"
- "dec %1 \n\t"
- "dec %2 \n\t"
- "sub %0, %1 \n\t"
- "sub %0, %2 \n\t"
- "lea " LOCAL_MANGLE(9b) ", %3 \n\t"
- "sub %0, %3 \n\t"
-
-
- :"=r" (fragmentB), "=r" (imm8OfPShufW1B), "=r" (imm8OfPShufW2B),
- "=r" (fragmentLengthB)
- );
-
- xpos= 0; //lumXInc/2 - 0x8000; // difference between pixel centers
- fragmentPos=0;
-
- for (i=0; i<dstW/numSplits; i++) {
- int xx=xpos>>16;
-
- if ((i&3) == 0) {
- int a=0;
- int b=((xpos+xInc)>>16) - xx;
- int c=((xpos+xInc*2)>>16) - xx;
- int d=((xpos+xInc*3)>>16) - xx;
- int inc = (d+1<4);
- uint8_t *fragment = (d+1<4) ? fragmentB : fragmentA;
- x86_reg imm8OfPShufW1 = (d+1<4) ? imm8OfPShufW1B : imm8OfPShufW1A;
- x86_reg imm8OfPShufW2 = (d+1<4) ? imm8OfPShufW2B : imm8OfPShufW2A;
- x86_reg fragmentLength = (d+1<4) ? fragmentLengthB : fragmentLengthA;
- int maxShift= 3-(d+inc);
- int shift=0;
-
- if (filterCode) {
- filter[i ] = (( xpos & 0xFFFF) ^ 0xFFFF)>>9;
- filter[i+1] = (((xpos+xInc ) & 0xFFFF) ^ 0xFFFF)>>9;
- filter[i+2] = (((xpos+xInc*2) & 0xFFFF) ^ 0xFFFF)>>9;
- filter[i+3] = (((xpos+xInc*3) & 0xFFFF) ^ 0xFFFF)>>9;
- filterPos[i/2]= xx;
-
- memcpy(filterCode + fragmentPos, fragment, fragmentLength);
-
- filterCode[fragmentPos + imm8OfPShufW1]=
- (a+inc) | ((b+inc)<<2) | ((c+inc)<<4) | ((d+inc)<<6);
- filterCode[fragmentPos + imm8OfPShufW2]=
- a | (b<<2) | (c<<4) | (d<<6);
-
- if (i+4-inc>=dstW) shift=maxShift; //avoid overread
- else if ((filterPos[i/2]&3) <= maxShift) shift=filterPos[i/2]&3; //Align
-
- if (shift && i>=shift) {
- filterCode[fragmentPos + imm8OfPShufW1]+= 0x55*shift;
- filterCode[fragmentPos + imm8OfPShufW2]+= 0x55*shift;
- filterPos[i/2]-=shift;
- }
- }
+ sws_init_swscale(c);
- fragmentPos+= fragmentLength;
-
- if (filterCode)
- filterCode[fragmentPos]= RET;
- }
- xpos+=xInc;
- }
- if (filterCode)
- filterPos[((i/2)+1)&(~1)]= xpos>>16; // needed to jump to the next part
+ if (ARCH_PPC)
+ ff_sws_init_swscale_ppc(c);
+ if (ARCH_X86)
+ ff_sws_init_swscale_x86(c);
- return fragmentPos + 1;
+ return swscale;
}
-#endif /* COMPILE_MMX2 */
-
-static SwsFunc getSwsFunc(SwsContext *c)
-{
-#if CONFIG_RUNTIME_CPUDETECT
- int flags = c->flags;
-
-#if ARCH_X86 && CONFIG_GPL
- // 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 ARCH_PPC
- 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 && CONFIG_GPL */
-#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 int PlanarToNV12Wrapper(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;
- /* Copy Y plane */
- if (dstStride[0]==srcStride[0] && srcStride[0] > 0)
- memcpy(dst, src[0], srcSliceH*dstStride[0]);
- else {
- int i;
- const uint8_t *srcPtr= src[0];
- uint8_t *dstPtr= dst;
- for (i=0; i<srcSliceH; i++) {
- memcpy(dstPtr, srcPtr, c->srcW);
- srcPtr+= srcStride[0];
- dstPtr+= dstStride[0];
- }
- }
- dst = dstParam[1] + dstStride[1]*srcSliceY/2;
- 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 YUYV2YUV420Wrapper(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 YUYV2YUV422Wrapper(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 UYVY2YUV420Wrapper(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 UYVY2YUV422Wrapper(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 int pal2rgbWrapper(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 (!usePal(srcFormat))
- av_log(c, AV_LOG_ERROR, "internal error %s -> %s converter\n",
- sws_format_name(srcFormat), sws_format_name(dstFormat));
-
- switch(dstFormat) {
- case PIX_FMT_RGB32 : conv = palette8topacked32; break;
- case PIX_FMT_BGR32 : conv = palette8topacked32; break;
- case PIX_FMT_BGR32_1: conv = palette8topacked32; break;
- case PIX_FMT_RGB32_1: conv = palette8topacked32; break;
- case PIX_FMT_RGB24 : conv = palette8topacked24; break;
- case PIX_FMT_BGR24 : conv = palette8topacked24; break;
- default: av_log(c, AV_LOG_ERROR, "internal error %s -> %s converter\n",
- sws_format_name(srcFormat), sws_format_name(dstFormat)); break;
- }
-
-
- for (i=0; i<srcSliceH; i++) {
- conv(srcPtr, dstPtr, c->srcW, (uint8_t *) c->pal_rgb);
- srcPtr+= srcStride[0];
- dstPtr+= dstStride[0];
- }
-
- return srcSliceH;
-}
-
-/* {RGB,BGR}{15,16,24,32,32_1} -> {RGB,BGR}{15,16,24,32} */
-static int rgb2rgbWrapper(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= (fmt_depth(srcFormat) + 7) >> 3;
- const int dstBpp= (fmt_depth(dstFormat) + 7) >> 3;
- const int srcId= fmt_depth(srcFormat) >> 2; /* 1:0, 4:1, 8:2, 15:3, 16:4, 24:6, 32:8 */
- const int dstId= fmt_depth(dstFormat) >> 2;
- void (*conv)(const uint8_t *src, uint8_t *dst, long src_size)=NULL;
-
- /* BGR -> BGR */
- if ( (isBGR(srcFormat) && isBGR(dstFormat))
- || (isRGB(srcFormat) && isRGB(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 ( (isBGR(srcFormat) && isRGB(dstFormat))
- || (isRGB(srcFormat) && isBGR(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;
- case 0x88: conv= rgb32tobgr32; 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];
- if(srcFormat == PIX_FMT_RGB32_1 || srcFormat == PIX_FMT_BGR32_1)
- srcPtr += ALT32_CORR;
-
- if (dstStride[0]*srcBpp == srcStride[0]*dstBpp && srcStride[0] > 0)
- conv(srcPtr, dst[0] + dstStride[0]*srcSliceY, srcSliceH*srcStride[0]);
- else {
- int i;
- uint8_t *dstPtr= dst[0] + 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 const uint8_t* src[], int srcStride[], int srcSliceY,
- int srcSliceH, uint8_t* dst[], int dstStride[])
-{
- int i;
-
- /* copy Y */
- if (srcStride[0]==dstStride[0] && srcStride[0] > 0)
- memcpy(dst[0]+ srcSliceY*dstStride[0], src[0], srcStride[0]*srcSliceH);
- else {
- const uint8_t *srcPtr= src[0];
- uint8_t *dstPtr= dst[0] + dstStride[0]*srcSliceY;
-
- for (i=0; i<srcSliceH; i++) {
- memcpy(dstPtr, srcPtr, c->srcW);
- srcPtr+= srcStride[0];
- dstPtr+= dstStride[0];
- }
- }
-
- if (c->dstFormat==PIX_FMT_YUV420P || c->dstFormat==PIX_FMT_YUVA420P) {
- 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]);
- } else {
- planar2x(src[1], dst[2] + dstStride[2]*(srcSliceY >> 1), c->chrSrcW,
- srcSliceH >> 2, srcStride[1], dstStride[2]);
- planar2x(src[2], dst[1] + dstStride[1]*(srcSliceY >> 1), c->chrSrcW,
- srcSliceH >> 2, srcStride[2], dstStride[1]);
- }
- 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 packedCopy(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 planarCopy(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(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] = bswap_16(((const uint16_t*)srcPtr)[j]);
- srcPtr+= srcStride[plane];
- dstPtr+= dstStride[plane];
- }
- } else if (dstStride[plane]==srcStride[plane] && srcStride[plane] > 0)
- 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;
-}
-
-
-static void getSubSampleFactors(int *h, int *v, enum PixelFormat format)
-{
- *h = av_pix_fmt_descriptors[format].log2_chroma_w;
- *v = av_pix_fmt_descriptors[format].log2_chroma_h;
-}
-
-static uint16_t roundToInt16(int64_t f)
-{
- int r= (f + (1<<15))>>16;
- if (r<-0x7FFF) return 0x8000;
- else if (r> 0x7FFF) return 0x7FFF;
- else return r;
-}
-
-int sws_setColorspaceDetails(SwsContext *c, const int inv_table[4], int srcRange, const int table[4], int dstRange, int brightness, int contrast, int saturation)
-{
- int64_t crv = inv_table[0];
- int64_t cbu = inv_table[1];
- int64_t cgu = -inv_table[2];
- int64_t cgv = -inv_table[3];
- int64_t cy = 1<<16;
- int64_t oy = 0;
-
- memcpy(c->srcColorspaceTable, inv_table, sizeof(int)*4);
- memcpy(c->dstColorspaceTable, table, sizeof(int)*4);
-
- c->brightness= brightness;
- c->contrast = contrast;
- c->saturation= saturation;
- c->srcRange = srcRange;
- c->dstRange = dstRange;
- if (isYUV(c->dstFormat) || isGray(c->dstFormat)) return -1;
-
- c->uOffset= 0x0400040004000400LL;
- c->vOffset= 0x0400040004000400LL;
-
- if (!srcRange) {
- cy= (cy*255) / 219;
- oy= 16<<16;
- } else {
- crv= (crv*224) / 255;
- cbu= (cbu*224) / 255;
- cgu= (cgu*224) / 255;
- cgv= (cgv*224) / 255;
- }
-
- cy = (cy *contrast )>>16;
- crv= (crv*contrast * saturation)>>32;
- cbu= (cbu*contrast * saturation)>>32;
- cgu= (cgu*contrast * saturation)>>32;
- cgv= (cgv*contrast * saturation)>>32;
-
- oy -= 256*brightness;
-
- c->yCoeff= roundToInt16(cy *8192) * 0x0001000100010001ULL;
- c->vrCoeff= roundToInt16(crv*8192) * 0x0001000100010001ULL;
- c->ubCoeff= roundToInt16(cbu*8192) * 0x0001000100010001ULL;
- c->vgCoeff= roundToInt16(cgv*8192) * 0x0001000100010001ULL;
- c->ugCoeff= roundToInt16(cgu*8192) * 0x0001000100010001ULL;
- c->yOffset= roundToInt16(oy * 8) * 0x0001000100010001ULL;
-
- c->yuv2rgb_y_coeff = (int16_t)roundToInt16(cy <<13);
- c->yuv2rgb_y_offset = (int16_t)roundToInt16(oy << 9);
- c->yuv2rgb_v2r_coeff= (int16_t)roundToInt16(crv<<13);
- c->yuv2rgb_v2g_coeff= (int16_t)roundToInt16(cgv<<13);
- c->yuv2rgb_u2g_coeff= (int16_t)roundToInt16(cgu<<13);
- c->yuv2rgb_u2b_coeff= (int16_t)roundToInt16(cbu<<13);
-
- ff_yuv2rgb_c_init_tables(c, inv_table, srcRange, brightness, contrast, saturation);
- //FIXME factorize
-
-#ifdef COMPILE_ALTIVEC
- if (c->flags & SWS_CPU_CAPS_ALTIVEC)
- ff_yuv2rgb_init_tables_altivec(c, inv_table, brightness, contrast, saturation);
-#endif
- return 0;
-}
-
-int sws_getColorspaceDetails(SwsContext *c, int **inv_table, int *srcRange, int **table, int *dstRange, int *brightness, int *contrast, int *saturation)
-{
- if (isYUV(c->dstFormat) || isGray(c->dstFormat)) return -1;
-
- *inv_table = c->srcColorspaceTable;
- *table = c->dstColorspaceTable;
- *srcRange = c->srcRange;
- *dstRange = c->dstRange;
- *brightness= c->brightness;
- *contrast = c->contrast;
- *saturation= c->saturation;
-
- return 0;
-}
-
-static int handle_jpeg(enum PixelFormat *format)
-{
- switch (*format) {
- case PIX_FMT_YUVJ420P:
- *format = PIX_FMT_YUV420P;
- return 1;
- case PIX_FMT_YUVJ422P:
- *format = PIX_FMT_YUV422P;
- return 1;
- case PIX_FMT_YUVJ444P:
- *format = PIX_FMT_YUV444P;
- return 1;
- case PIX_FMT_YUVJ440P:
- *format = PIX_FMT_YUV440P;
- return 1;
- default:
- return 0;
- }
-}
-
-SwsContext *sws_getContext(int srcW, int srcH, enum PixelFormat srcFormat, int dstW, int dstH, enum PixelFormat dstFormat, int flags,
- SwsFilter *srcFilter, SwsFilter *dstFilter, const double *param)
-{
-
- SwsContext *c;
- int i;
- int usesVFilter, usesHFilter;
- int unscaled, needsDither;
- int srcRange, dstRange;
- SwsFilter dummyFilter= {NULL, NULL, NULL, NULL};
-#if ARCH_X86
- if (flags & SWS_CPU_CAPS_MMX)
- __asm__ volatile("emms\n\t"::: "memory");
-#endif
-
-#if !CONFIG_RUNTIME_CPUDETECT //ensure that the flags match the compiled variant if cpudetect is off
- flags &= ~(SWS_CPU_CAPS_MMX|SWS_CPU_CAPS_MMX2|SWS_CPU_CAPS_3DNOW|SWS_CPU_CAPS_ALTIVEC|SWS_CPU_CAPS_BFIN);
-#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
-#endif /* CONFIG_RUNTIME_CPUDETECT */
- if (!rgb15to16) sws_rgb2rgb_init(flags);
-
- unscaled = (srcW == dstW && srcH == dstH);
- needsDither= (isBGR(dstFormat) || isRGB(dstFormat))
- && (fmt_depth(dstFormat))<24
- && ((fmt_depth(dstFormat))<(fmt_depth(srcFormat)) || (!(isRGB(srcFormat) || isBGR(srcFormat))));
-
- srcRange = handle_jpeg(&srcFormat);
- dstRange = handle_jpeg(&dstFormat);
-
- if (!isSupportedIn(srcFormat)) {
- av_log(NULL, AV_LOG_ERROR, "swScaler: %s is not supported as input pixel format\n", sws_format_name(srcFormat));
- return NULL;
- }
- if (!isSupportedOut(dstFormat)) {
- av_log(NULL, AV_LOG_ERROR, "swScaler: %s is not supported as output pixel format\n", sws_format_name(dstFormat));
- return NULL;
- }
-
- i= flags & ( SWS_POINT
- |SWS_AREA
- |SWS_BILINEAR
- |SWS_FAST_BILINEAR
- |SWS_BICUBIC
- |SWS_X
- |SWS_GAUSS
- |SWS_LANCZOS
- |SWS_SINC
- |SWS_SPLINE
- |SWS_BICUBLIN);
- if(!i || (i & (i-1))) {
- av_log(NULL, AV_LOG_ERROR, "swScaler: Exactly one scaler algorithm must be chosen\n");
- return NULL;
- }
-
- /* sanity check */
- if (srcW<4 || srcH<1 || dstW<8 || dstH<1) { //FIXME check if these are enough and try to lowwer them after fixing the relevant parts of the code
- av_log(NULL, AV_LOG_ERROR, "swScaler: %dx%d -> %dx%d is invalid scaling dimension\n",
- srcW, srcH, dstW, dstH);
- return NULL;
- }
- if(srcW > VOFW || dstW > VOFW) {
- av_log(NULL, AV_LOG_ERROR, "swScaler: Compile-time maximum width is "AV_STRINGIFY(VOFW)" change VOF/VOFW and recompile\n");
- return NULL;
- }
-
- if (!dstFilter) dstFilter= &dummyFilter;
- if (!srcFilter) srcFilter= &dummyFilter;
-
- FF_ALLOCZ_OR_GOTO(NULL, c, sizeof(SwsContext), fail);
-
- c->av_class = &sws_context_class;
- c->srcW= srcW;
- c->srcH= srcH;
- c->dstW= dstW;
- c->dstH= dstH;
- c->lumXInc= ((srcW<<16) + (dstW>>1))/dstW;
- c->lumYInc= ((srcH<<16) + (dstH>>1))/dstH;
- c->flags= flags;
- c->dstFormat= dstFormat;
- c->srcFormat= srcFormat;
- c->vRounder= 4* 0x0001000100010001ULL;
-
- usesHFilter= usesVFilter= 0;
- if (dstFilter->lumV && dstFilter->lumV->length>1) usesVFilter=1;
- if (dstFilter->lumH && dstFilter->lumH->length>1) usesHFilter=1;
- if (dstFilter->chrV && dstFilter->chrV->length>1) usesVFilter=1;
- if (dstFilter->chrH && dstFilter->chrH->length>1) usesHFilter=1;
- if (srcFilter->lumV && srcFilter->lumV->length>1) usesVFilter=1;
- if (srcFilter->lumH && srcFilter->lumH->length>1) usesHFilter=1;
- if (srcFilter->chrV && srcFilter->chrV->length>1) usesVFilter=1;
- if (srcFilter->chrH && srcFilter->chrH->length>1) usesHFilter=1;
-
- getSubSampleFactors(&c->chrSrcHSubSample, &c->chrSrcVSubSample, srcFormat);
- getSubSampleFactors(&c->chrDstHSubSample, &c->chrDstVSubSample, dstFormat);
-
- // reuse chroma for 2 pixels RGB/BGR unless user wants full chroma interpolation
- if ((isBGR(dstFormat) || isRGB(dstFormat)) && !(flags&SWS_FULL_CHR_H_INT)) c->chrDstHSubSample=1;
-
- // drop some chroma lines if the user wants it
- c->vChrDrop= (flags&SWS_SRC_V_CHR_DROP_MASK)>>SWS_SRC_V_CHR_DROP_SHIFT;
- c->chrSrcVSubSample+= c->vChrDrop;
-
- // drop every other pixel for chroma calculation unless user wants full chroma
- if ((isBGR(srcFormat) || isRGB(srcFormat)) && !(flags&SWS_FULL_CHR_H_INP)
- && srcFormat!=PIX_FMT_RGB8 && srcFormat!=PIX_FMT_BGR8
- && srcFormat!=PIX_FMT_RGB4 && srcFormat!=PIX_FMT_BGR4
- && srcFormat!=PIX_FMT_RGB4_BYTE && srcFormat!=PIX_FMT_BGR4_BYTE
- && ((dstW>>c->chrDstHSubSample) <= (srcW>>1) || (flags&(SWS_FAST_BILINEAR|SWS_POINT))))
- c->chrSrcHSubSample=1;
-
- if (param) {
- c->param[0] = param[0];
- c->param[1] = param[1];
- } else {
- c->param[0] =
- c->param[1] = SWS_PARAM_DEFAULT;
- }
-
- // Note the -((-x)>>y) is so that we always round toward +inf.
- c->chrSrcW= -((-srcW) >> c->chrSrcHSubSample);
- c->chrSrcH= -((-srcH) >> c->chrSrcVSubSample);
- c->chrDstW= -((-dstW) >> c->chrDstHSubSample);
- c->chrDstH= -((-dstH) >> c->chrDstVSubSample);
-
- sws_setColorspaceDetails(c, ff_yuv2rgb_coeffs[SWS_CS_DEFAULT], srcRange, ff_yuv2rgb_coeffs[SWS_CS_DEFAULT] /* FIXME*/, dstRange, 0, 1<<16, 1<<16);
-
- /* unscaled special cases */
- if (unscaled && !usesHFilter && !usesVFilter && (srcRange == dstRange || isBGR(dstFormat) || isRGB(dstFormat))) {
- /* 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) && (isBGR(dstFormat) || isRGB(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 ( (isBGR(srcFormat) || isRGB(srcFormat))
- && (isBGR(dstFormat) || isRGB(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
- && dstFormat != PIX_FMT_RGB32_1
- && dstFormat != PIX_FMT_BGR32_1
- && srcFormat != PIX_FMT_RGB48LE && dstFormat != PIX_FMT_RGB48LE
- && srcFormat != PIX_FMT_RGB48BE && dstFormat != PIX_FMT_RGB48BE
- && (!needsDither || (c->flags&(SWS_FAST_BILINEAR|SWS_POINT))))
- c->swScale= rgb2rgbWrapper;
-
- 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= pal2rgbWrapper;
-
- 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= YUYV2YUV420Wrapper;
- if(srcFormat == PIX_FMT_UYVY422 && (dstFormat == PIX_FMT_YUV420P || dstFormat == PIX_FMT_YUVA420P))
- c->swScale= UYVY2YUV420Wrapper;
- if(srcFormat == PIX_FMT_YUYV422 && dstFormat == PIX_FMT_YUV422P)
- c->swScale= YUYV2YUV422Wrapper;
- if(srcFormat == PIX_FMT_UYVY422 && dstFormat == PIX_FMT_YUV422P)
- c->swScale= UYVY2YUV422Wrapper;
-
-#ifdef 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= packedCopy;
- else /* Planar YUV or gray */
- c->swScale= planarCopy;
- }
-#if ARCH_BFIN
- if (flags & SWS_CPU_CAPS_BFIN)
- ff_bfin_get_unscaled_swscale (c);
-#endif
-
- if (c->swScale) {
- if (flags&SWS_PRINT_INFO)
- av_log(c, AV_LOG_INFO, "using unscaled %s -> %s special converter\n",
- sws_format_name(srcFormat), sws_format_name(dstFormat));
- return c;
- }
- }
-
- if (flags & SWS_CPU_CAPS_MMX2) {
- c->canMMX2BeUsed= (dstW >=srcW && (dstW&31)==0 && (srcW&15)==0) ? 1 : 0;
- if (!c->canMMX2BeUsed && dstW >=srcW && (srcW&15)==0 && (flags&SWS_FAST_BILINEAR)) {
- if (flags&SWS_PRINT_INFO)
- av_log(c, AV_LOG_INFO, "output width is not a multiple of 32 -> no MMX2 scaler\n");
- }
- if (usesHFilter) c->canMMX2BeUsed=0;
- }
- else
- c->canMMX2BeUsed=0;
-
- c->chrXInc= ((c->chrSrcW<<16) + (c->chrDstW>>1))/c->chrDstW;
- c->chrYInc= ((c->chrSrcH<<16) + (c->chrDstH>>1))/c->chrDstH;
-
- // match pixel 0 of the src to pixel 0 of dst and match pixel n-2 of src to pixel n-2 of dst
- // but only for the FAST_BILINEAR mode otherwise do correct scaling
- // n-2 is the last chrominance sample available
- // this is not perfect, but no one should notice the difference, the more correct variant
- // would be like the vertical one, but that would require some special code for the
- // first and last pixel
- if (flags&SWS_FAST_BILINEAR) {
- if (c->canMMX2BeUsed) {
- c->lumXInc+= 20;
- c->chrXInc+= 20;
- }
- //we don't use the x86 asm scaler if MMX is available
- else if (flags & SWS_CPU_CAPS_MMX) {
- c->lumXInc = ((srcW-2)<<16)/(dstW-2) - 20;
- c->chrXInc = ((c->chrSrcW-2)<<16)/(c->chrDstW-2) - 20;
- }
- }
-
- /* precalculate horizontal scaler filter coefficients */
- {
-#if defined(COMPILE_MMX2)
-// can't downscale !!!
- if (c->canMMX2BeUsed && (flags & SWS_FAST_BILINEAR)) {
- c->lumMmx2FilterCodeSize = initMMX2HScaler( dstW, c->lumXInc, NULL, NULL, NULL, 8);
- c->chrMmx2FilterCodeSize = initMMX2HScaler(c->chrDstW, c->chrXInc, NULL, NULL, NULL, 4);
-
-#ifdef MAP_ANONYMOUS
- c->lumMmx2FilterCode = mmap(NULL, c->lumMmx2FilterCodeSize, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, 0, 0);
- c->chrMmx2FilterCode = mmap(NULL, c->chrMmx2FilterCodeSize, PROT_READ | PROT_WRITE, MAP_PRIVATE | MAP_ANONYMOUS, 0, 0);
-#elif HAVE_VIRTUALALLOC
- c->lumMmx2FilterCode = VirtualAlloc(NULL, c->lumMmx2FilterCodeSize, MEM_COMMIT, PAGE_EXECUTE_READWRITE);
- c->chrMmx2FilterCode = VirtualAlloc(NULL, c->chrMmx2FilterCodeSize, MEM_COMMIT, PAGE_EXECUTE_READWRITE);
-#else
- c->lumMmx2FilterCode = av_malloc(c->lumMmx2FilterCodeSize);
- c->chrMmx2FilterCode = av_malloc(c->chrMmx2FilterCodeSize);
-#endif
-
- FF_ALLOCZ_OR_GOTO(c, c->hLumFilter , (dstW /8+8)*sizeof(int16_t), fail);
- FF_ALLOCZ_OR_GOTO(c, c->hChrFilter , (c->chrDstW /4+8)*sizeof(int16_t), fail);
- FF_ALLOCZ_OR_GOTO(c, c->hLumFilterPos, (dstW /2/8+8)*sizeof(int32_t), fail);
- FF_ALLOCZ_OR_GOTO(c, c->hChrFilterPos, (c->chrDstW/2/4+8)*sizeof(int32_t), fail);
-
- initMMX2HScaler( dstW, c->lumXInc, c->lumMmx2FilterCode, c->hLumFilter, c->hLumFilterPos, 8);
- initMMX2HScaler(c->chrDstW, c->chrXInc, c->chrMmx2FilterCode, c->hChrFilter, c->hChrFilterPos, 4);
-
-#ifdef MAP_ANONYMOUS
- mprotect(c->lumMmx2FilterCode, c->lumMmx2FilterCodeSize, PROT_EXEC | PROT_READ);
- mprotect(c->chrMmx2FilterCode, c->chrMmx2FilterCodeSize, PROT_EXEC | PROT_READ);
-#endif
- } else
-#endif /* defined(COMPILE_MMX2) */
- {
- const int filterAlign=
- (flags & SWS_CPU_CAPS_MMX) ? 4 :
- (flags & SWS_CPU_CAPS_ALTIVEC) ? 8 :
- 1;
-
- if (initFilter(&c->hLumFilter, &c->hLumFilterPos, &c->hLumFilterSize, c->lumXInc,
- srcW , dstW, filterAlign, 1<<14,
- (flags&SWS_BICUBLIN) ? (flags|SWS_BICUBIC) : flags,
- srcFilter->lumH, dstFilter->lumH, c->param) < 0)
- goto fail;
- if (initFilter(&c->hChrFilter, &c->hChrFilterPos, &c->hChrFilterSize, c->chrXInc,
- c->chrSrcW, c->chrDstW, filterAlign, 1<<14,
- (flags&SWS_BICUBLIN) ? (flags|SWS_BILINEAR) : flags,
- srcFilter->chrH, dstFilter->chrH, c->param) < 0)
- goto fail;
- }
- } // initialize horizontal stuff
-
-
-
- /* precalculate vertical scaler filter coefficients */
- {
- const int filterAlign=
- (flags & SWS_CPU_CAPS_MMX) && (flags & SWS_ACCURATE_RND) ? 2 :
- (flags & SWS_CPU_CAPS_ALTIVEC) ? 8 :
- 1;
-
- if (initFilter(&c->vLumFilter, &c->vLumFilterPos, &c->vLumFilterSize, c->lumYInc,
- srcH , dstH, filterAlign, (1<<12),
- (flags&SWS_BICUBLIN) ? (flags|SWS_BICUBIC) : flags,
- srcFilter->lumV, dstFilter->lumV, c->param) < 0)
- goto fail;
- if (initFilter(&c->vChrFilter, &c->vChrFilterPos, &c->vChrFilterSize, c->chrYInc,
- c->chrSrcH, c->chrDstH, filterAlign, (1<<12),
- (flags&SWS_BICUBLIN) ? (flags|SWS_BILINEAR) : flags,
- srcFilter->chrV, dstFilter->chrV, c->param) < 0)
- goto fail;
-
-#ifdef COMPILE_ALTIVEC
- FF_ALLOC_OR_GOTO(c, c->vYCoeffsBank, sizeof (vector signed short)*c->vLumFilterSize*c->dstH, fail);
- FF_ALLOC_OR_GOTO(c, c->vCCoeffsBank, sizeof (vector signed short)*c->vChrFilterSize*c->chrDstH, fail);
-
- for (i=0;i<c->vLumFilterSize*c->dstH;i++) {
- int j;
- short *p = (short *)&c->vYCoeffsBank[i];
- for (j=0;j<8;j++)
- p[j] = c->vLumFilter[i];
- }
-
- for (i=0;i<c->vChrFilterSize*c->chrDstH;i++) {
- int j;
- short *p = (short *)&c->vCCoeffsBank[i];
- for (j=0;j<8;j++)
- p[j] = c->vChrFilter[i];
- }
-#endif
- }
-
- // calculate buffer sizes so that they won't run out while handling these damn slices
- c->vLumBufSize= c->vLumFilterSize;
- c->vChrBufSize= c->vChrFilterSize;
- for (i=0; i<dstH; i++) {
- int chrI= i*c->chrDstH / dstH;
- int nextSlice= FFMAX(c->vLumFilterPos[i ] + c->vLumFilterSize - 1,
- ((c->vChrFilterPos[chrI] + c->vChrFilterSize - 1)<<c->chrSrcVSubSample));
-
- nextSlice>>= c->chrSrcVSubSample;
- nextSlice<<= c->chrSrcVSubSample;
- if (c->vLumFilterPos[i ] + c->vLumBufSize < nextSlice)
- c->vLumBufSize= nextSlice - c->vLumFilterPos[i];
- if (c->vChrFilterPos[chrI] + c->vChrBufSize < (nextSlice>>c->chrSrcVSubSample))
- c->vChrBufSize= (nextSlice>>c->chrSrcVSubSample) - c->vChrFilterPos[chrI];
- }
-
- // allocate pixbufs (we use dynamic allocation because otherwise we would need to
- // allocate several megabytes to handle all possible cases)
- FF_ALLOC_OR_GOTO(c, c->lumPixBuf, c->vLumBufSize*2*sizeof(int16_t*), fail);
- FF_ALLOC_OR_GOTO(c, c->chrPixBuf, c->vChrBufSize*2*sizeof(int16_t*), fail);
- if (CONFIG_SWSCALE_ALPHA && isALPHA(c->srcFormat) && isALPHA(c->dstFormat))
- FF_ALLOCZ_OR_GOTO(c, c->alpPixBuf, c->vLumBufSize*2*sizeof(int16_t*), fail);
- //Note we need at least one pixel more at the end because of the MMX code (just in case someone wanna replace the 4000/8000)
- /* align at 16 bytes for AltiVec */
- for (i=0; i<c->vLumBufSize; i++) {
- FF_ALLOCZ_OR_GOTO(c, c->lumPixBuf[i+c->vLumBufSize], VOF+1, fail);
- c->lumPixBuf[i] = c->lumPixBuf[i+c->vLumBufSize];
- }
- for (i=0; i<c->vChrBufSize; i++) {
- FF_ALLOC_OR_GOTO(c, c->chrPixBuf[i+c->vChrBufSize], (VOF+1)*2, fail);
- c->chrPixBuf[i] = c->chrPixBuf[i+c->vChrBufSize];
- }
- if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf)
- for (i=0; i<c->vLumBufSize; i++) {
- FF_ALLOCZ_OR_GOTO(c, c->alpPixBuf[i+c->vLumBufSize], VOF+1, fail);
- c->alpPixBuf[i] = c->alpPixBuf[i+c->vLumBufSize];
- }
-
- //try to avoid drawing green stuff between the right end and the stride end
- for (i=0; i<c->vChrBufSize; i++) memset(c->chrPixBuf[i], 64, (VOF+1)*2);
-
- assert(2*VOFW == VOF);
-
- assert(c->chrDstH <= dstH);
-
- if (flags&SWS_PRINT_INFO) {
- if (flags&SWS_FAST_BILINEAR)
- av_log(c, AV_LOG_INFO, "FAST_BILINEAR scaler, ");
- else if (flags&SWS_BILINEAR)
- av_log(c, AV_LOG_INFO, "BILINEAR scaler, ");
- else if (flags&SWS_BICUBIC)
- av_log(c, AV_LOG_INFO, "BICUBIC scaler, ");
- else if (flags&SWS_X)
- av_log(c, AV_LOG_INFO, "Experimental scaler, ");
- else if (flags&SWS_POINT)
- av_log(c, AV_LOG_INFO, "Nearest Neighbor / POINT scaler, ");
- else if (flags&SWS_AREA)
- av_log(c, AV_LOG_INFO, "Area Averaging scaler, ");
- else if (flags&SWS_BICUBLIN)
- av_log(c, AV_LOG_INFO, "luma BICUBIC / chroma BILINEAR scaler, ");
- else if (flags&SWS_GAUSS)
- av_log(c, AV_LOG_INFO, "Gaussian scaler, ");
- else if (flags&SWS_SINC)
- av_log(c, AV_LOG_INFO, "Sinc scaler, ");
- else if (flags&SWS_LANCZOS)
- av_log(c, AV_LOG_INFO, "Lanczos scaler, ");
- else if (flags&SWS_SPLINE)
- av_log(c, AV_LOG_INFO, "Bicubic spline scaler, ");
- else
- av_log(c, AV_LOG_INFO, "ehh flags invalid?! ");
-
- av_log(c, AV_LOG_INFO, "from %s to %s%s ",
- sws_format_name(srcFormat),
-#ifdef DITHER1XBPP
- dstFormat == PIX_FMT_BGR555 || dstFormat == PIX_FMT_BGR565 ? "dithered " : "",
-#else
- "",
-#endif
- sws_format_name(dstFormat));
-
- if (flags & SWS_CPU_CAPS_MMX2)
- av_log(c, AV_LOG_INFO, "using MMX2\n");
- else if (flags & SWS_CPU_CAPS_3DNOW)
- av_log(c, AV_LOG_INFO, "using 3DNOW\n");
- else if (flags & SWS_CPU_CAPS_MMX)
- av_log(c, AV_LOG_INFO, "using MMX\n");
- else if (flags & SWS_CPU_CAPS_ALTIVEC)
- av_log(c, AV_LOG_INFO, "using AltiVec\n");
- else
- av_log(c, AV_LOG_INFO, "using C\n");
- }
-
- if (flags & SWS_PRINT_INFO) {
- if (flags & SWS_CPU_CAPS_MMX) {
- if (c->canMMX2BeUsed && (flags&SWS_FAST_BILINEAR))
- av_log(c, AV_LOG_VERBOSE, "using FAST_BILINEAR MMX2 scaler for horizontal scaling\n");
- else {
- if (c->hLumFilterSize==4)
- av_log(c, AV_LOG_VERBOSE, "using 4-tap MMX scaler for horizontal luminance scaling\n");
- else if (c->hLumFilterSize==8)
- av_log(c, AV_LOG_VERBOSE, "using 8-tap MMX scaler for horizontal luminance scaling\n");
- else
- av_log(c, AV_LOG_VERBOSE, "using n-tap MMX scaler for horizontal luminance scaling\n");
-
- if (c->hChrFilterSize==4)
- av_log(c, AV_LOG_VERBOSE, "using 4-tap MMX scaler for horizontal chrominance scaling\n");
- else if (c->hChrFilterSize==8)
- av_log(c, AV_LOG_VERBOSE, "using 8-tap MMX scaler for horizontal chrominance scaling\n");
- else
- av_log(c, AV_LOG_VERBOSE, "using n-tap MMX scaler for horizontal chrominance scaling\n");
- }
- } else {
-#if ARCH_X86
- av_log(c, AV_LOG_VERBOSE, "using x86 asm scaler for horizontal scaling\n");
-#else
- if (flags & SWS_FAST_BILINEAR)
- av_log(c, AV_LOG_VERBOSE, "using FAST_BILINEAR C scaler for horizontal scaling\n");
- else
- av_log(c, AV_LOG_VERBOSE, "using C scaler for horizontal scaling\n");
-#endif
- }
- if (isPlanarYUV(dstFormat)) {
- if (c->vLumFilterSize==1)
- av_log(c, AV_LOG_VERBOSE, "using 1-tap %s \"scaler\" for vertical scaling (YV12 like)\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
- else
- av_log(c, AV_LOG_VERBOSE, "using n-tap %s scaler for vertical scaling (YV12 like)\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
- } else {
- if (c->vLumFilterSize==1 && c->vChrFilterSize==2)
- av_log(c, AV_LOG_VERBOSE, "using 1-tap %s \"scaler\" for vertical luminance scaling (BGR)\n"
- " 2-tap scaler for vertical chrominance scaling (BGR)\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
- else if (c->vLumFilterSize==2 && c->vChrFilterSize==2)
- av_log(c, AV_LOG_VERBOSE, "using 2-tap linear %s scaler for vertical scaling (BGR)\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
- else
- av_log(c, AV_LOG_VERBOSE, "using n-tap %s scaler for vertical scaling (BGR)\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
- }
-
- if (dstFormat==PIX_FMT_BGR24)
- av_log(c, AV_LOG_VERBOSE, "using %s YV12->BGR24 converter\n",
- (flags & SWS_CPU_CAPS_MMX2) ? "MMX2" : ((flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C"));
- else if (dstFormat==PIX_FMT_RGB32)
- av_log(c, AV_LOG_VERBOSE, "using %s YV12->BGR32 converter\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
- else if (dstFormat==PIX_FMT_BGR565)
- av_log(c, AV_LOG_VERBOSE, "using %s YV12->BGR16 converter\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
- else if (dstFormat==PIX_FMT_BGR555)
- av_log(c, AV_LOG_VERBOSE, "using %s YV12->BGR15 converter\n", (flags & SWS_CPU_CAPS_MMX) ? "MMX" : "C");
-
- av_log(c, AV_LOG_VERBOSE, "%dx%d -> %dx%d\n", srcW, srcH, dstW, dstH);
- }
- if (flags & SWS_PRINT_INFO) {
- av_log(c, AV_LOG_DEBUG, "lum srcW=%d srcH=%d dstW=%d dstH=%d xInc=%d yInc=%d\n",
- c->srcW, c->srcH, c->dstW, c->dstH, c->lumXInc, c->lumYInc);
- av_log(c, AV_LOG_DEBUG, "chr srcW=%d srcH=%d dstW=%d dstH=%d xInc=%d yInc=%d\n",
- c->chrSrcW, c->chrSrcH, c->chrDstW, c->chrDstH, c->chrXInc, c->chrYInc);
- }
-
- c->swScale= getSwsFunc(c);
- return c;
-
-fail:
- sws_freeContext(c);
- return NULL;
-}
-
-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;
- }
-}
-
-/**
- * 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* src[], int srcStride[], int srcSliceY,
- int srcSliceH, uint8_t* dst[], 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 (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 {
- 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);
- }
-}
-
-#if LIBSWSCALE_VERSION_MAJOR < 1
-int sws_scale_ordered(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY,
- int srcSliceH, uint8_t* dst[], int dstStride[])
-{
- return sws_scale(c, src, srcStride, srcSliceY, srcSliceH, dst, dstStride);
-}
-#endif
-
-SwsFilter *sws_getDefaultFilter(float lumaGBlur, float chromaGBlur,
- float lumaSharpen, float chromaSharpen,
- float chromaHShift, float chromaVShift,
- int verbose)
-{
- SwsFilter *filter= av_malloc(sizeof(SwsFilter));
- if (!filter)
- return NULL;
-
- if (lumaGBlur!=0.0) {
- filter->lumH= sws_getGaussianVec(lumaGBlur, 3.0);
- filter->lumV= sws_getGaussianVec(lumaGBlur, 3.0);
- } else {
- filter->lumH= sws_getIdentityVec();
- filter->lumV= sws_getIdentityVec();
- }
-
- if (chromaGBlur!=0.0) {
- filter->chrH= sws_getGaussianVec(chromaGBlur, 3.0);
- filter->chrV= sws_getGaussianVec(chromaGBlur, 3.0);
- } else {
- filter->chrH= sws_getIdentityVec();
- filter->chrV= sws_getIdentityVec();
- }
-
- if (chromaSharpen!=0.0) {
- SwsVector *id= sws_getIdentityVec();
- sws_scaleVec(filter->chrH, -chromaSharpen);
- sws_scaleVec(filter->chrV, -chromaSharpen);
- sws_addVec(filter->chrH, id);
- sws_addVec(filter->chrV, id);
- sws_freeVec(id);
- }
-
- if (lumaSharpen!=0.0) {
- SwsVector *id= sws_getIdentityVec();
- sws_scaleVec(filter->lumH, -lumaSharpen);
- sws_scaleVec(filter->lumV, -lumaSharpen);
- sws_addVec(filter->lumH, id);
- sws_addVec(filter->lumV, id);
- sws_freeVec(id);
- }
-
- if (chromaHShift != 0.0)
- sws_shiftVec(filter->chrH, (int)(chromaHShift+0.5));
-
- if (chromaVShift != 0.0)
- sws_shiftVec(filter->chrV, (int)(chromaVShift+0.5));
-
- sws_normalizeVec(filter->chrH, 1.0);
- sws_normalizeVec(filter->chrV, 1.0);
- sws_normalizeVec(filter->lumH, 1.0);
- sws_normalizeVec(filter->lumV, 1.0);
-
- if (verbose) sws_printVec2(filter->chrH, NULL, AV_LOG_DEBUG);
- if (verbose) sws_printVec2(filter->lumH, NULL, AV_LOG_DEBUG);
-
- return filter;
-}
-
-SwsVector *sws_allocVec(int length)
-{
- SwsVector *vec = av_malloc(sizeof(SwsVector));
- if (!vec)
- return NULL;
- vec->length = length;
- vec->coeff = av_malloc(sizeof(double) * length);
- if (!vec->coeff)
- av_freep(&vec);
- return vec;
-}
-
-SwsVector *sws_getGaussianVec(double variance, double quality)
-{
- const int length= (int)(variance*quality + 0.5) | 1;
- int i;
- double middle= (length-1)*0.5;
- SwsVector *vec= sws_allocVec(length);
-
- if (!vec)
- return NULL;
-
- for (i=0; i<length; i++) {
- double dist= i-middle;
- vec->coeff[i]= exp(-dist*dist/(2*variance*variance)) / sqrt(2*variance*PI);
- }
-
- sws_normalizeVec(vec, 1.0);
-
- return vec;
-}
-
-SwsVector *sws_getConstVec(double c, int length)
-{
- int i;
- SwsVector *vec= sws_allocVec(length);
-
- if (!vec)
- return NULL;
-
- for (i=0; i<length; i++)
- vec->coeff[i]= c;
-
- return vec;
-}
-
-
-SwsVector *sws_getIdentityVec(void)
-{
- return sws_getConstVec(1.0, 1);
-}
-
-double sws_dcVec(SwsVector *a)
-{
- int i;
- double sum=0;
-
- for (i=0; i<a->length; i++)
- sum+= a->coeff[i];
-
- return sum;
-}
-
-void sws_scaleVec(SwsVector *a, double scalar)
-{
- int i;
-
- for (i=0; i<a->length; i++)
- a->coeff[i]*= scalar;
-}
-
-void sws_normalizeVec(SwsVector *a, double height)
-{
- sws_scaleVec(a, height/sws_dcVec(a));
-}
-
-static SwsVector *sws_getConvVec(SwsVector *a, SwsVector *b)
-{
- int length= a->length + b->length - 1;
- int i, j;
- SwsVector *vec= sws_getConstVec(0.0, length);
-
- if (!vec)
- return NULL;
-
- for (i=0; i<a->length; i++) {
- for (j=0; j<b->length; j++) {
- vec->coeff[i+j]+= a->coeff[i]*b->coeff[j];
- }
- }
-
- return vec;
-}
-
-static SwsVector *sws_sumVec(SwsVector *a, SwsVector *b)
-{
- int length= FFMAX(a->length, b->length);
- int i;
- SwsVector *vec= sws_getConstVec(0.0, length);
-
- if (!vec)
- return NULL;
-
- for (i=0; i<a->length; i++) vec->coeff[i + (length-1)/2 - (a->length-1)/2]+= a->coeff[i];
- for (i=0; i<b->length; i++) vec->coeff[i + (length-1)/2 - (b->length-1)/2]+= b->coeff[i];
-
- return vec;
-}
-
-static SwsVector *sws_diffVec(SwsVector *a, SwsVector *b)
-{
- int length= FFMAX(a->length, b->length);
- int i;
- SwsVector *vec= sws_getConstVec(0.0, length);
-
- if (!vec)
- return NULL;
-
- for (i=0; i<a->length; i++) vec->coeff[i + (length-1)/2 - (a->length-1)/2]+= a->coeff[i];
- for (i=0; i<b->length; i++) vec->coeff[i + (length-1)/2 - (b->length-1)/2]-= b->coeff[i];
-
- return vec;
-}
-
-/* shift left / or right if "shift" is negative */
-static SwsVector *sws_getShiftedVec(SwsVector *a, int shift)
-{
- int length= a->length + FFABS(shift)*2;
- int i;
- SwsVector *vec= sws_getConstVec(0.0, length);
-
- if (!vec)
- return NULL;
-
- for (i=0; i<a->length; i++) {
- vec->coeff[i + (length-1)/2 - (a->length-1)/2 - shift]= a->coeff[i];
- }
-
- return vec;
-}
-
-void sws_shiftVec(SwsVector *a, int shift)
-{
- SwsVector *shifted= sws_getShiftedVec(a, shift);
- av_free(a->coeff);
- a->coeff= shifted->coeff;
- a->length= shifted->length;
- av_free(shifted);
-}
-
-void sws_addVec(SwsVector *a, SwsVector *b)
-{
- SwsVector *sum= sws_sumVec(a, b);
- av_free(a->coeff);
- a->coeff= sum->coeff;
- a->length= sum->length;
- av_free(sum);
-}
-
-void sws_subVec(SwsVector *a, SwsVector *b)
-{
- SwsVector *diff= sws_diffVec(a, b);
- av_free(a->coeff);
- a->coeff= diff->coeff;
- a->length= diff->length;
- av_free(diff);
-}
-
-void sws_convVec(SwsVector *a, SwsVector *b)
-{
- SwsVector *conv= sws_getConvVec(a, b);
- av_free(a->coeff);
- a->coeff= conv->coeff;
- a->length= conv->length;
- av_free(conv);
-}
-
-SwsVector *sws_cloneVec(SwsVector *a)
-{
- int i;
- SwsVector *vec= sws_allocVec(a->length);
-
- if (!vec)
- return NULL;
-
- for (i=0; i<a->length; i++) vec->coeff[i]= a->coeff[i];
-
- return vec;
-}
-
-void sws_printVec2(SwsVector *a, AVClass *log_ctx, int log_level)
-{
- int i;
- double max=0;
- double min=0;
- double range;
-
- for (i=0; i<a->length; i++)
- if (a->coeff[i]>max) max= a->coeff[i];
-
- for (i=0; i<a->length; i++)
- if (a->coeff[i]<min) min= a->coeff[i];
-
- range= max - min;
-
- for (i=0; i<a->length; i++) {
- int x= (int)((a->coeff[i]-min)*60.0/range +0.5);
- av_log(log_ctx, log_level, "%1.3f ", a->coeff[i]);
- for (;x>0; x--) av_log(log_ctx, log_level, " ");
- av_log(log_ctx, log_level, "|\n");
- }
-}
-
-#if LIBSWSCALE_VERSION_MAJOR < 1
-void sws_printVec(SwsVector *a)
-{
- sws_printVec2(a, NULL, AV_LOG_DEBUG);
-}
-#endif
-
-void sws_freeVec(SwsVector *a)
-{
- if (!a) return;
- av_freep(&a->coeff);
- a->length=0;
- av_free(a);
-}
-
-void sws_freeFilter(SwsFilter *filter)
-{
- if (!filter) return;
-
- if (filter->lumH) sws_freeVec(filter->lumH);
- if (filter->lumV) sws_freeVec(filter->lumV);
- if (filter->chrH) sws_freeVec(filter->chrH);
- if (filter->chrV) sws_freeVec(filter->chrV);
- av_free(filter);
-}
-
-
-void sws_freeContext(SwsContext *c)
-{
- int i;
- if (!c) return;
-
- if (c->lumPixBuf) {
- for (i=0; i<c->vLumBufSize; i++)
- av_freep(&c->lumPixBuf[i]);
- av_freep(&c->lumPixBuf);
- }
-
- if (c->chrPixBuf) {
- for (i=0; i<c->vChrBufSize; i++)
- av_freep(&c->chrPixBuf[i]);
- av_freep(&c->chrPixBuf);
- }
-
- if (CONFIG_SWSCALE_ALPHA && c->alpPixBuf) {
- for (i=0; i<c->vLumBufSize; i++)
- av_freep(&c->alpPixBuf[i]);
- av_freep(&c->alpPixBuf);
- }
-
- av_freep(&c->vLumFilter);
- av_freep(&c->vChrFilter);
- av_freep(&c->hLumFilter);
- av_freep(&c->hChrFilter);
-#ifdef COMPILE_ALTIVEC
- av_freep(&c->vYCoeffsBank);
- av_freep(&c->vCCoeffsBank);
-#endif
-
- av_freep(&c->vLumFilterPos);
- av_freep(&c->vChrFilterPos);
- av_freep(&c->hLumFilterPos);
- av_freep(&c->hChrFilterPos);
-
-#if ARCH_X86 && CONFIG_GPL
-#ifdef MAP_ANONYMOUS
- if (c->lumMmx2FilterCode) munmap(c->lumMmx2FilterCode, c->lumMmx2FilterCodeSize);
- if (c->chrMmx2FilterCode) munmap(c->chrMmx2FilterCode, c->chrMmx2FilterCodeSize);
-#elif HAVE_VIRTUALALLOC
- if (c->lumMmx2FilterCode) VirtualFree(c->lumMmx2FilterCode, c->lumMmx2FilterCodeSize, MEM_RELEASE);
- if (c->chrMmx2FilterCode) VirtualFree(c->chrMmx2FilterCode, c->chrMmx2FilterCodeSize, MEM_RELEASE);
-#else
- av_free(c->lumMmx2FilterCode);
- av_free(c->chrMmx2FilterCode);
-#endif
- c->lumMmx2FilterCode=NULL;
- c->chrMmx2FilterCode=NULL;
-#endif /* ARCH_X86 && CONFIG_GPL */
-
- av_freep(&c->yuvTable);
-
- av_free(c);
-}
-
-struct SwsContext *sws_getCachedContext(struct SwsContext *context,
- int srcW, int srcH, enum PixelFormat srcFormat,
- int dstW, int dstH, enum PixelFormat dstFormat, int flags,
- SwsFilter *srcFilter, SwsFilter *dstFilter, const double *param)
-{
- static const double default_param[2] = {SWS_PARAM_DEFAULT, SWS_PARAM_DEFAULT};
-
- if (!param)
- param = default_param;
-
- if (context) {
- if (context->srcW != srcW || context->srcH != srcH ||
- context->srcFormat != srcFormat ||
- context->dstW != dstW || context->dstH != dstH ||
- context->dstFormat != dstFormat || context->flags != flags ||
- context->param[0] != param[0] || context->param[1] != param[1])
- {
- sws_freeContext(context);
- context = NULL;
- }
- }
- if (!context) {
- return sws_getContext(srcW, srcH, srcFormat,
- dstW, dstH, dstFormat, flags,
- srcFilter, dstFilter, param);
- }
- return context;
-}
-
projects / ffmpeg / blobdiff