| /* |
| * software RGB to RGB converter |
| * pluralize by software PAL8 to RGB converter |
| * software YUV to YUV converter |
| * software YUV to RGB converter |
| * Written by Nick Kurshev. |
| * palette & YUV & runtime CPU stuff by Michael (michaelni@gmx.at) |
| * |
| * This file is part of FFmpeg. |
| * |
| * FFmpeg is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU Lesser General Public |
| * License as published by the Free Software Foundation; either |
| * version 2.1 of the License, or (at your option) any later version. |
| * |
| * FFmpeg is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public |
| * License along with FFmpeg; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| #include <inttypes.h> |
| #include "config.h" |
| #include "libavutil/bswap.h" |
| #include "rgb2rgb.h" |
| #include "swscale.h" |
| #include "swscale_internal.h" |
| |
| void (*rgb24tobgr32)(const uint8_t *src, uint8_t *dst, int src_size); |
| void (*rgb24tobgr16)(const uint8_t *src, uint8_t *dst, int src_size); |
| void (*rgb24tobgr15)(const uint8_t *src, uint8_t *dst, int src_size); |
| void (*rgb32tobgr24)(const uint8_t *src, uint8_t *dst, int src_size); |
| void (*rgb32to16)(const uint8_t *src, uint8_t *dst, int src_size); |
| void (*rgb32to15)(const uint8_t *src, uint8_t *dst, int src_size); |
| void (*rgb15to16)(const uint8_t *src, uint8_t *dst, int src_size); |
| void (*rgb15tobgr24)(const uint8_t *src, uint8_t *dst, int src_size); |
| void (*rgb15to32)(const uint8_t *src, uint8_t *dst, int src_size); |
| void (*rgb16to15)(const uint8_t *src, uint8_t *dst, int src_size); |
| void (*rgb16tobgr24)(const uint8_t *src, uint8_t *dst, int src_size); |
| void (*rgb16to32)(const uint8_t *src, uint8_t *dst, int src_size); |
| void (*rgb24tobgr24)(const uint8_t *src, uint8_t *dst, int src_size); |
| void (*rgb24to16)(const uint8_t *src, uint8_t *dst, int src_size); |
| void (*rgb24to15)(const uint8_t *src, uint8_t *dst, int src_size); |
| void (*shuffle_bytes_2103)(const uint8_t *src, uint8_t *dst, int src_size); |
| void (*rgb32tobgr16)(const uint8_t *src, uint8_t *dst, int src_size); |
| void (*rgb32tobgr15)(const uint8_t *src, uint8_t *dst, int src_size); |
| |
| void (*yv12toyuy2)(const uint8_t *ysrc, const uint8_t *usrc, const uint8_t *vsrc, uint8_t *dst, |
| int width, int height, |
| int lumStride, int chromStride, int dstStride); |
| void (*yv12touyvy)(const uint8_t *ysrc, const uint8_t *usrc, const uint8_t *vsrc, uint8_t *dst, |
| int width, int height, |
| int lumStride, int chromStride, int dstStride); |
| void (*yuv422ptoyuy2)(const uint8_t *ysrc, const uint8_t *usrc, const uint8_t *vsrc, uint8_t *dst, |
| int width, int height, |
| int lumStride, int chromStride, int dstStride); |
| void (*yuv422ptouyvy)(const uint8_t *ysrc, const uint8_t *usrc, const uint8_t *vsrc, uint8_t *dst, |
| int width, int height, |
| int lumStride, int chromStride, int dstStride); |
| void (*yuy2toyv12)(const uint8_t *src, uint8_t *ydst, uint8_t *udst, uint8_t *vdst, |
| int width, int height, |
| int lumStride, int chromStride, int srcStride); |
| void (*rgb24toyv12)(const uint8_t *src, uint8_t *ydst, uint8_t *udst, uint8_t *vdst, |
| int width, int height, |
| int lumStride, int chromStride, int srcStride); |
| void (*planar2x)(const uint8_t *src, uint8_t *dst, int width, int height, |
| int srcStride, int dstStride); |
| void (*interleaveBytes)(const uint8_t *src1, const uint8_t *src2, uint8_t *dst, |
| int width, int height, int src1Stride, |
| int src2Stride, int dstStride); |
| void (*vu9_to_vu12)(const uint8_t *src1, const uint8_t *src2, |
| uint8_t *dst1, uint8_t *dst2, |
| int width, int height, |
| int srcStride1, int srcStride2, |
| int dstStride1, int dstStride2); |
| void (*yvu9_to_yuy2)(const uint8_t *src1, const uint8_t *src2, const uint8_t *src3, |
| uint8_t *dst, |
| int width, int height, |
| int srcStride1, int srcStride2, |
| int srcStride3, int dstStride); |
| void (*uyvytoyuv420)(uint8_t *ydst, uint8_t *udst, uint8_t *vdst, const uint8_t *src, |
| int width, int height, |
| int lumStride, int chromStride, int srcStride); |
| void (*uyvytoyuv422)(uint8_t *ydst, uint8_t *udst, uint8_t *vdst, const uint8_t *src, |
| int width, int height, |
| int lumStride, int chromStride, int srcStride); |
| void (*yuyvtoyuv420)(uint8_t *ydst, uint8_t *udst, uint8_t *vdst, const uint8_t *src, |
| int width, int height, |
| int lumStride, int chromStride, int srcStride); |
| void (*yuyvtoyuv422)(uint8_t *ydst, uint8_t *udst, uint8_t *vdst, const uint8_t *src, |
| int width, int height, |
| int lumStride, int chromStride, int srcStride); |
| |
| #define RGB2YUV_SHIFT 8 |
| #define BY ((int)( 0.098*(1<<RGB2YUV_SHIFT)+0.5)) |
| #define BV ((int)(-0.071*(1<<RGB2YUV_SHIFT)+0.5)) |
| #define BU ((int)( 0.439*(1<<RGB2YUV_SHIFT)+0.5)) |
| #define GY ((int)( 0.504*(1<<RGB2YUV_SHIFT)+0.5)) |
| #define GV ((int)(-0.368*(1<<RGB2YUV_SHIFT)+0.5)) |
| #define GU ((int)(-0.291*(1<<RGB2YUV_SHIFT)+0.5)) |
| #define RY ((int)( 0.257*(1<<RGB2YUV_SHIFT)+0.5)) |
| #define RV ((int)( 0.439*(1<<RGB2YUV_SHIFT)+0.5)) |
| #define RU ((int)(-0.148*(1<<RGB2YUV_SHIFT)+0.5)) |
| |
| //plain C versions |
| #include "rgb2rgb_template.c" |
| |
| |
| /* |
| RGB15->RGB16 original by Strepto/Astral |
| ported to gcc & bugfixed : A'rpi |
| MMX2, 3DNOW optimization by Nick Kurshev |
| 32-bit C version, and and&add trick by Michael Niedermayer |
| */ |
| |
| void sws_rgb2rgb_init(void) |
| { |
| rgb2rgb_init_c(); |
| if (HAVE_MMX) |
| rgb2rgb_init_x86(); |
| } |
| |
| void rgb32to24(const uint8_t *src, uint8_t *dst, int src_size) |
| { |
| int i; |
| int num_pixels = src_size >> 2; |
| for (i=0; i<num_pixels; i++) { |
| #if HAVE_BIGENDIAN |
| /* RGB32 (= A,B,G,R) -> BGR24 (= B,G,R) */ |
| dst[3*i + 0] = src[4*i + 1]; |
| dst[3*i + 1] = src[4*i + 2]; |
| dst[3*i + 2] = src[4*i + 3]; |
| #else |
| dst[3*i + 0] = src[4*i + 2]; |
| dst[3*i + 1] = src[4*i + 1]; |
| dst[3*i + 2] = src[4*i + 0]; |
| #endif |
| } |
| } |
| |
| void rgb24to32(const uint8_t *src, uint8_t *dst, int src_size) |
| { |
| int i; |
| for (i=0; 3*i<src_size; i++) { |
| #if HAVE_BIGENDIAN |
| /* RGB24 (= R,G,B) -> BGR32 (= A,R,G,B) */ |
| dst[4*i + 0] = 255; |
| dst[4*i + 1] = src[3*i + 0]; |
| dst[4*i + 2] = src[3*i + 1]; |
| dst[4*i + 3] = src[3*i + 2]; |
| #else |
| dst[4*i + 0] = src[3*i + 2]; |
| dst[4*i + 1] = src[3*i + 1]; |
| dst[4*i + 2] = src[3*i + 0]; |
| dst[4*i + 3] = 255; |
| #endif |
| } |
| } |
| |
| void rgb16tobgr32(const uint8_t *src, uint8_t *dst, int src_size) |
| { |
| const uint16_t *end; |
| uint8_t *d = dst; |
| const uint16_t *s = (const uint16_t *)src; |
| end = s + src_size/2; |
| while (s < end) { |
| register uint16_t bgr; |
| bgr = *s++; |
| #if HAVE_BIGENDIAN |
| *d++ = 255; |
| *d++ = ((bgr&0x1F)<<3) | ((bgr&0x1F)>>2); |
| *d++ = ((bgr&0x7E0)>>3) | ((bgr&0x7E0)>>9); |
| *d++ = ((bgr&0xF800)>>8) | ((bgr&0xF800)>>13); |
| #else |
| *d++ = ((bgr&0xF800)>>8) | ((bgr&0xF800)>>13); |
| *d++ = ((bgr&0x7E0)>>3) | ((bgr&0x7E0)>>9); |
| *d++ = ((bgr&0x1F)<<3) | ((bgr&0x1F)>>2); |
| *d++ = 255; |
| #endif |
| } |
| } |
| |
| void rgb12to15(const uint8_t *src, uint8_t *dst, int src_size) |
| { |
| const uint16_t *end; |
| uint16_t *d = (uint16_t *)dst; |
| const uint16_t *s = (const uint16_t *)src; |
| uint16_t rgb, r, g, b; |
| end = s + src_size / 2; |
| while (s < end) { |
| rgb = *s++; |
| r = rgb & 0xF00; |
| g = rgb & 0x0F0; |
| b = rgb & 0x00F; |
| r = (r << 3) | ((r & 0x800) >> 1); |
| g = (g << 2) | ((g & 0x080) >> 2); |
| b = (b << 1) | ( b >> 3); |
| *d++ = r | g | b; |
| } |
| } |
| |
| void rgb16to24(const uint8_t *src, uint8_t *dst, int src_size) |
| { |
| const uint16_t *end; |
| uint8_t *d = dst; |
| const uint16_t *s = (const uint16_t *)src; |
| end = s + src_size/2; |
| while (s < end) { |
| register uint16_t bgr; |
| bgr = *s++; |
| *d++ = ((bgr&0xF800)>>8) | ((bgr&0xF800)>>13); |
| *d++ = ((bgr&0x7E0)>>3) | ((bgr&0x7E0)>>9); |
| *d++ = ((bgr&0x1F)<<3) | ((bgr&0x1F)>>2); |
| } |
| } |
| |
| void rgb16tobgr16(const uint8_t *src, uint8_t *dst, int src_size) |
| { |
| int i; |
| int num_pixels = src_size >> 1; |
| |
| for (i=0; i<num_pixels; i++) { |
| unsigned rgb = ((const uint16_t*)src)[i]; |
| ((uint16_t*)dst)[i] = (rgb>>11) | (rgb&0x7E0) | (rgb<<11); |
| } |
| } |
| |
| void rgb16tobgr15(const uint8_t *src, uint8_t *dst, int src_size) |
| { |
| int i; |
| int num_pixels = src_size >> 1; |
| |
| for (i=0; i<num_pixels; i++) { |
| unsigned rgb = ((const uint16_t*)src)[i]; |
| ((uint16_t*)dst)[i] = (rgb>>11) | ((rgb&0x7C0)>>1) | ((rgb&0x1F)<<10); |
| } |
| } |
| |
| void rgb15tobgr32(const uint8_t *src, uint8_t *dst, int src_size) |
| { |
| const uint16_t *end; |
| uint8_t *d = dst; |
| const uint16_t *s = (const uint16_t *)src; |
| end = s + src_size/2; |
| while (s < end) { |
| register uint16_t bgr; |
| bgr = *s++; |
| #if HAVE_BIGENDIAN |
| *d++ = 255; |
| *d++ = ((bgr&0x1F)<<3) | ((bgr&0x1F)>>2); |
| *d++ = ((bgr&0x3E0)>>2) | ((bgr&0x3E0)>>7); |
| *d++ = ((bgr&0x7C00)>>7) | ((bgr&0x7C00)>>12); |
| #else |
| *d++ = ((bgr&0x7C00)>>7) | ((bgr&0x7C00)>>12); |
| *d++ = ((bgr&0x3E0)>>2) | ((bgr&0x3E0)>>7); |
| *d++ = ((bgr&0x1F)<<3) | ((bgr&0x1F)>>2); |
| *d++ = 255; |
| #endif |
| } |
| } |
| |
| void rgb15to24(const uint8_t *src, uint8_t *dst, int src_size) |
| { |
| const uint16_t *end; |
| uint8_t *d = dst; |
| const uint16_t *s = (const uint16_t *)src; |
| end = s + src_size/2; |
| while (s < end) { |
| register uint16_t bgr; |
| bgr = *s++; |
| *d++ = ((bgr&0x7C00)>>7) | ((bgr&0x7C00)>>12); |
| *d++ = ((bgr&0x3E0)>>2) | ((bgr&0x3E0)>>7); |
| *d++ = ((bgr&0x1F)<<3) | ((bgr&0x1F)>>2); |
| } |
| } |
| |
| void rgb15tobgr16(const uint8_t *src, uint8_t *dst, int src_size) |
| { |
| int i; |
| int num_pixels = src_size >> 1; |
| |
| for (i=0; i<num_pixels; i++) { |
| unsigned rgb = ((const uint16_t*)src)[i]; |
| ((uint16_t*)dst)[i] = ((rgb&0x7C00)>>10) | ((rgb&0x3E0)<<1) | (rgb<<11); |
| } |
| } |
| |
| void rgb15tobgr15(const uint8_t *src, uint8_t *dst, int src_size) |
| { |
| int i; |
| int num_pixels = src_size >> 1; |
| |
| for (i=0; i<num_pixels; i++) { |
| unsigned br; |
| unsigned rgb = ((const uint16_t*)src)[i]; |
| br = rgb&0x7c1F; |
| ((uint16_t*)dst)[i] = (br>>10) | (rgb&0x3E0) | (br<<10); |
| } |
| } |
| |
| void rgb12tobgr12(const uint8_t *src, uint8_t *dst, int src_size) |
| { |
| uint16_t *d = (uint16_t*)dst; |
| uint16_t *s = (uint16_t*)src; |
| int i; |
| int num_pixels = src_size >> 1; |
| |
| for (i = 0; i < num_pixels; i++) { |
| unsigned rgb = s[i]; |
| d[i] = (rgb << 8 | rgb & 0xF0 | rgb >> 8) & 0xFFF; |
| } |
| } |
| |
| #define DEFINE_SHUFFLE_BYTES(a, b, c, d) \ |
| void shuffle_bytes_##a##b##c##d(const uint8_t *src, uint8_t *dst, int src_size) \ |
| { \ |
| int i; \ |
| \ |
| for (i = 0; i < src_size; i+=4) { \ |
| dst[i + 0] = src[i + a]; \ |
| dst[i + 1] = src[i + b]; \ |
| dst[i + 2] = src[i + c]; \ |
| dst[i + 3] = src[i + d]; \ |
| } \ |
| } |
| |
| DEFINE_SHUFFLE_BYTES(0, 3, 2, 1) |
| DEFINE_SHUFFLE_BYTES(1, 2, 3, 0) |
| DEFINE_SHUFFLE_BYTES(3, 0, 1, 2) |
| DEFINE_SHUFFLE_BYTES(3, 2, 1, 0) |
| |