/* * 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 Libav. * * Libav is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * Libav is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with Libav; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA */ #include <inttypes.h> #include "libavutil/bswap.h" #include "config.h" #include "rgb2rgb.h" #include "swscale.h" #include "swscale_internal.h" void (*rgb32tobgr24)(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 (*rgb24tobgr32)(const uint8_t *src, uint8_t *dst, int src_size); void (*rgb24tobgr24)(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 (*rgb16tobgr24)(const uint8_t *src, uint8_t *dst, int src_size); void (*rgb15tobgr24)(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 (*rgb24to16)(const uint8_t *src, uint8_t *dst, int src_size); void (*rgb24to15)(const uint8_t *src, uint8_t *dst, int src_size); void (*rgb16to32)(const uint8_t *src, uint8_t *dst, int src_size); void (*rgb16to15)(const uint8_t *src, uint8_t *dst, int src_size); void (*rgb15to16)(const uint8_t *src, uint8_t *dst, int src_size); void (*rgb15to32)(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 (*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, 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) { uint8_t *d = dst; const uint16_t *s = (const uint16_t *)src; const uint16_t *end = s + src_size / 2; while (s < end) { register uint16_t bgr = *s++; #if HAVE_BIGENDIAN *d++ = 255; *d++ = (bgr & 0x1F) << 3; *d++ = (bgr & 0x7E0) >> 3; *d++ = (bgr & 0xF800) >> 8; #else *d++ = (bgr & 0xF800) >> 8; *d++ = (bgr & 0x7E0) >> 3; *d++ = (bgr & 0x1F) << 3; *d++ = 255; #endif } } void rgb12to15(const uint8_t *src, uint8_t *dst, int src_size) { uint16_t rgb, r, g, b; uint16_t *d = (uint16_t *)dst; const uint16_t *s = (const uint16_t *)src; const uint16_t *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) { uint8_t *d = dst; const uint16_t *s = (const uint16_t *)src; const uint16_t *end = s + src_size / 2; while (s < end) { register uint16_t bgr = *s++; *d++ = (bgr & 0xF800) >> 8; *d++ = (bgr & 0x7E0) >> 3; *d++ = (bgr & 0x1F) << 3; } } void rgb16tobgr16(const uint8_t *src, uint8_t *dst, int src_size) { int i, 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, 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) { uint8_t *d = dst; const uint16_t *s = (const uint16_t *)src; const uint16_t *end = s + src_size / 2; while (s < end) { register uint16_t bgr = *s++; #if HAVE_BIGENDIAN *d++ = 255; *d++ = (bgr & 0x1F) << 3; *d++ = (bgr & 0x3E0) >> 2; *d++ = (bgr & 0x7C00) >> 7; #else *d++ = (bgr & 0x7C00) >> 7; *d++ = (bgr & 0x3E0) >> 2; *d++ = (bgr & 0x1F) << 3; *d++ = 255; #endif } } void rgb15to24(const uint8_t *src, uint8_t *dst, int src_size) { uint8_t *d = dst; const uint16_t *s = (const uint16_t *)src; const uint16_t *end = s + src_size / 2; while (s < end) { register uint16_t bgr = *s++; *d++ = (bgr & 0x7C00) >> 7; *d++ = (bgr & 0x3E0) >> 2; *d++ = (bgr & 0x1F) << 3; } } void rgb15tobgr16(const uint8_t *src, uint8_t *dst, int src_size) { int i, 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, num_pixels = src_size >> 1; for (i = 0; i < num_pixels; i++) { unsigned rgb = ((const uint16_t *)src)[i]; unsigned 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, 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; } } void bgr8torgb8(const uint8_t *src, uint8_t *dst, int src_size) { int i, num_pixels = src_size; for (i = 0; i < num_pixels; i++) { register uint8_t rgb = src[i]; unsigned r = (rgb & 0x07); unsigned g = (rgb & 0x38) >> 3; unsigned b = (rgb & 0xC0) >> 6; dst[i] = ((b << 1) & 0x07) | ((g & 0x07) << 3) | ((r & 0x03) << 6); } } #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)