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/***************************************************************************** |
/***************************************************************************** |
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* |
* |
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* XVID MPEG-4 VIDEO CODEC |
* XVID MPEG-4 VIDEO CODEC |
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* - colorspace conversion module - |
* - Colorspace conversion functions - |
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* |
* |
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* Copyright(C) 2002 Peter Ross <pross@xvid.org> |
* Copyright(C) 2001-2003 Peter Ross <pross@xvid.org> |
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* |
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* This program is an implementation of a part of one or more MPEG-4 |
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* Video tools as specified in ISO/IEC 14496-2 standard. Those intending |
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* to use this software module in hardware or software products are |
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* advised that its use may infringe existing patents or copyrights, and |
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* any such use would be at such party's own risk. The original |
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* developer of this software module and his/her company, and subsequent |
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* editors and their companies, will have no liability for use of this |
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* software or modifications or derivatives thereof. |
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* |
* |
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* This program is free software; you can redistribute it and/or modify |
* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
* it under the terms of the GNU General Public License as published by |
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* along with this program; if not, write to the Free Software |
* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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* |
* |
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* $Id: colorspace.c,v 1.8.2.3 2003-06-09 13:53:20 edgomez Exp $ |
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* |
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****************************************************************************/ |
****************************************************************************/ |
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#include <string.h> // memcpy |
#include <string.h> /* memcpy */ |
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#include "../global.h" |
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#include "colorspace.h" |
#include "colorspace.h" |
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#include "../divx4.h" // DEC_PICTURE |
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// function pointers |
/* function pointers */ |
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/* input */ |
/* input */ |
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color_inputFuncPtr rgb555_to_yv12; |
packedFuncPtr rgb555_to_yv12; |
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color_inputFuncPtr rgb565_to_yv12; |
packedFuncPtr rgb565_to_yv12; |
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color_inputFuncPtr rgb24_to_yv12; |
packedFuncPtr bgr_to_yv12; |
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color_inputFuncPtr rgb32_to_yv12; |
packedFuncPtr bgra_to_yv12; |
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color_inputFuncPtr yuv_to_yv12; |
packedFuncPtr abgr_to_yv12; |
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color_inputFuncPtr yuyv_to_yv12; |
packedFuncPtr rgba_to_yv12; |
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color_inputFuncPtr uyvy_to_yv12; |
packedFuncPtr yuv_to_yv12; |
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packedFuncPtr yuyv_to_yv12; |
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packedFuncPtr uyvy_to_yv12; |
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packedFuncPtr rgb555i_to_yv12; |
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packedFuncPtr rgb565i_to_yv12; |
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packedFuncPtr bgri_to_yv12; |
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packedFuncPtr bgrai_to_yv12; |
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packedFuncPtr abgri_to_yv12; |
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packedFuncPtr rgbai_to_yv12; |
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packedFuncPtr yuyvi_to_yv12; |
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packedFuncPtr uyvyi_to_yv12; |
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/* output */ |
/* output */ |
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color_outputFuncPtr yv12_to_rgb555; |
packedFuncPtr yv12_to_rgb555; |
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color_outputFuncPtr yv12_to_rgb565; |
packedFuncPtr yv12_to_rgb565; |
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color_outputFuncPtr yv12_to_rgb24; |
packedFuncPtr yv12_to_bgr; |
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color_outputFuncPtr yv12_to_rgb32; |
packedFuncPtr yv12_to_bgra; |
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color_outputFuncPtr yv12_to_yuv; |
packedFuncPtr yv12_to_abgr; |
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color_outputFuncPtr yv12_to_yuyv; |
packedFuncPtr yv12_to_rgba; |
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color_outputFuncPtr yv12_to_uyvy; |
packedFuncPtr yv12_to_yuv; |
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packedFuncPtr yv12_to_yuyv; |
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packedFuncPtr yv12_to_uyvy; |
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packedFuncPtr yv12_to_rgb555i; |
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packedFuncPtr yv12_to_rgb565i; |
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packedFuncPtr yv12_to_bgri; |
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packedFuncPtr yv12_to_bgrai; |
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packedFuncPtr yv12_to_abgri; |
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packedFuncPtr yv12_to_rgbai; |
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packedFuncPtr yv12_to_yuyvi; |
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packedFuncPtr yv12_to_uyvyi; |
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planarFuncPtr yv12_to_yv12; |
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int32_t RGB_Y_tab[256]; |
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int32_t B_U_tab[256]; |
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int32_t G_U_tab[256]; |
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int32_t G_V_tab[256]; |
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int32_t R_V_tab[256]; |
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/********** generic colorspace macro **********/ |
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#define MAKE_COLORSPACE(NAME,SIZE,PIXELS,VPIXELS,FUNC,C1,C2,C3,C4) \ |
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void \ |
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NAME(uint8_t * x_ptr, int x_stride, \ |
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uint8_t * y_ptr, uint8_t * u_ptr, uint8_t * v_ptr, \ |
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int y_stride, int uv_stride, \ |
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int width, int height, int vflip) \ |
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{ \ |
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int fixed_width = (width + 1) & ~1; \ |
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int x_dif = x_stride - (SIZE)*fixed_width; \ |
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int y_dif = y_stride - fixed_width; \ |
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int uv_dif = uv_stride - (fixed_width / 2); \ |
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int x, y; \ |
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if (vflip) { \ |
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x_ptr += (height - 1) * x_stride; \ |
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x_dif = -(SIZE)*fixed_width - x_stride; \ |
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x_stride = -x_stride; \ |
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} \ |
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for (y = 0; y < height; y+=(VPIXELS)) { \ |
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FUNC##_ROW(SIZE,C1,C2,C3,C4); \ |
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for (x = 0; x < fixed_width; x+=(PIXELS)) { \ |
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FUNC(SIZE,C1,C2,C3,C4); \ |
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x_ptr += (PIXELS)*(SIZE); \ |
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y_ptr += (PIXELS); \ |
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u_ptr += (PIXELS)/2; \ |
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v_ptr += (PIXELS)/2; \ |
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} \ |
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x_ptr += x_dif + (VPIXELS-1)*x_stride; \ |
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y_ptr += y_dif + (VPIXELS-1)*y_stride; \ |
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u_ptr += uv_dif + ((VPIXELS/2)-1)*uv_stride; \ |
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v_ptr += uv_dif + ((VPIXELS/2)-1)*uv_stride; \ |
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} \ |
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} |
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#define MIN(A,B) ((A)<(B)?(A):(B)) |
/********** colorspace input (xxx_to_yv12) functions **********/ |
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#define MAX(A,B) ((A)>(B)?(A):(B)) |
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/* rgb -> yuv def's |
/* rgb -> yuv def's |
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#define FIX_IN(x) ((uint16_t) ((x) * (1L<<SCALEBITS_IN) + 0.5)) |
#define FIX_IN(x) ((uint16_t) ((x) * (1L<<SCALEBITS_IN) + 0.5)) |
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int32_t RGB_Y_tab[256]; |
/* rgb16/rgb16i input */ |
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int32_t B_U_tab[256]; |
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int32_t G_U_tab[256]; |
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int32_t G_V_tab[256]; |
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int32_t R_V_tab[256]; |
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/* rgb555 -> yuv 4:2:0 planar */ |
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void |
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rgb555_to_yv12_c(uint8_t * y_out, |
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uint8_t * u_out, |
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uint8_t * v_out, |
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uint8_t * src, |
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int width, |
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int height, |
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int y_stride) |
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{ |
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int32_t src_stride = width * 2; |
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uint32_t y_dif = y_stride - width; |
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uint32_t uv_dif = (y_stride - width) / 2; |
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uint32_t x, y; |
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if (height < 0) { |
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height = -height; |
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src += (height - 1) * src_stride; |
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src_stride = -src_stride; |
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} |
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for (y = height / 2; y; y--) { |
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// process one 2x2 block per iteration |
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for (x = 0; x < (uint32_t) width; x += 2) { |
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int rgb, r, g, b, r4, g4, b4; |
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rgb = *(uint16_t *) (src + x * 2); |
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b4 = b = (rgb << 3) & 0xf8; |
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g4 = g = (rgb >> 2) & 0xf8; |
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r4 = r = (rgb >> 7) & 0xf8; |
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y_out[0] = |
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(uint8_t) ((FIX_IN(Y_R_IN) * r + FIX_IN(Y_G_IN) * g + |
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FIX_IN(Y_B_IN) * b) >> SCALEBITS_IN) + Y_ADD_IN; |
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rgb = *(uint16_t *) (src + x * 2 + src_stride); |
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b4 += b = (rgb << 3) & 0xf8; |
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g4 += g = (rgb >> 2) & 0xf8; |
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r4 += r = (rgb >> 7) & 0xf8; |
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y_out[y_stride] = |
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(uint8_t) ((FIX_IN(Y_R_IN) * r + FIX_IN(Y_G_IN) * g + |
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FIX_IN(Y_B_IN) * b) >> SCALEBITS_IN) + Y_ADD_IN; |
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rgb = *(uint16_t *) (src + x * 2 + 2); |
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b4 += b = (rgb << 3) & 0xf8; |
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g4 += g = (rgb >> 2) & 0xf8; |
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r4 += r = (rgb >> 7) & 0xf8; |
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y_out[1] = |
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(uint8_t) ((FIX_IN(Y_R_IN) * r + FIX_IN(Y_G_IN) * g + |
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FIX_IN(Y_B_IN) * b) >> SCALEBITS_IN) + Y_ADD_IN; |
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rgb = *(uint16_t *) (src + x * 2 + src_stride + 2); |
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b4 += b = (rgb << 3) & 0xf8; |
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g4 += g = (rgb >> 2) & 0xf8; |
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r4 += r = (rgb >> 7) & 0xf8; |
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y_out[y_stride + 1] = |
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(uint8_t) ((FIX_IN(Y_R_IN) * r + FIX_IN(Y_G_IN) * g + |
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FIX_IN(Y_B_IN) * b) >> SCALEBITS_IN) + Y_ADD_IN; |
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*u_out++ = |
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(uint8_t) ((-FIX_IN(U_R_IN) * r4 - FIX_IN(U_G_IN) * g4 + |
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FIX_IN(U_B_IN) * b4) >> (SCALEBITS_IN + 2)) + |
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U_ADD_IN; |
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*v_out++ = |
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(uint8_t) ((FIX_IN(V_R_IN) * r4 - FIX_IN(V_G_IN) * g4 - |
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FIX_IN(V_B_IN) * b4) >> (SCALEBITS_IN + 2)) + |
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V_ADD_IN; |
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y_out += 2; |
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} |
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src += src_stride * 2; |
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y_out += y_dif + y_stride; |
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u_out += uv_dif; |
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v_out += uv_dif; |
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} |
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} |
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/* rgb565_to_yuv_c |
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NOTE: identical to rgb555 except for shift/mask |
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not tested */ |
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void |
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rgb565_to_yv12_c(uint8_t * y_out, |
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uint8_t * u_out, |
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uint8_t * v_out, |
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uint8_t * src, |
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int width, |
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int height, |
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int y_stride) |
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{ |
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int32_t src_stride = width * 2; |
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uint32_t y_dif = y_stride - width; |
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uint32_t uv_dif = (y_stride - width) / 2; |
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uint32_t x, y; |
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if (height < 0) { |
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height = -height; |
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src += (height - 1) * src_stride; |
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src_stride = -src_stride; |
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} |
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for (y = height / 2; y; y--) { |
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// process one 2x2 block per iteration |
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for (x = 0; x < (uint32_t) width; x += 2) { |
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int rgb, r, g, b, r4, g4, b4; |
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rgb = *(uint16_t *) (src + x * 2); |
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b4 = b = (rgb << 3) & 0xf8; |
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g4 = g = (rgb >> 3) & 0xfc; |
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r4 = r = (rgb >> 8) & 0xf8; |
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y_out[0] = |
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(uint8_t) ((FIX_IN(Y_R_IN) * r + FIX_IN(Y_G_IN) * g + |
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FIX_IN(Y_B_IN) * b) >> SCALEBITS_IN) + Y_ADD_IN; |
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rgb = *(uint16_t *) (src + x * 2 + src_stride); |
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b4 += b = (rgb << 3) & 0xf8; |
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g4 += g = (rgb >> 3) & 0xfc; |
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r4 += r = (rgb >> 8) & 0xf8; |
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y_out[y_stride] = |
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(uint8_t) ((FIX_IN(Y_R_IN) * r + FIX_IN(Y_G_IN) * g + |
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FIX_IN(Y_B_IN) * b) >> SCALEBITS_IN) + Y_ADD_IN; |
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rgb = *(uint16_t *) (src + x * 2 + 2); |
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b4 += b = (rgb << 3) & 0xf8; |
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g4 += g = (rgb >> 3) & 0xfc; |
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r4 += r = (rgb >> 8) & 0xf8; |
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y_out[1] = |
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(uint8_t) ((FIX_IN(Y_R_IN) * r + FIX_IN(Y_G_IN) * g + |
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FIX_IN(Y_B_IN) * b) >> SCALEBITS_IN) + Y_ADD_IN; |
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rgb = *(uint16_t *) (src + x * 2 + src_stride + 2); |
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b4 += b = (rgb << 3) & 0xf8; |
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g4 += g = (rgb >> 3) & 0xfc; |
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r4 += r = (rgb >> 8) & 0xf8; |
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y_out[y_stride + 1] = |
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(uint8_t) ((FIX_IN(Y_R_IN) * r + FIX_IN(Y_G_IN) * g + |
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FIX_IN(Y_B_IN) * b) >> SCALEBITS_IN) + Y_ADD_IN; |
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*u_out++ = |
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(uint8_t) ((-FIX_IN(U_R_IN) * r4 - FIX_IN(U_G_IN) * g4 + |
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FIX_IN(U_B_IN) * b4) >> (SCALEBITS_IN + 2)) + |
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U_ADD_IN; |
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*v_out++ = |
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(uint8_t) ((FIX_IN(V_R_IN) * r4 - FIX_IN(V_G_IN) * g4 - |
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FIX_IN(V_B_IN) * b4) >> (SCALEBITS_IN + 2)) + |
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V_ADD_IN; |
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y_out += 2; |
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} |
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src += src_stride * 2; |
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y_out += y_dif + y_stride; |
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u_out += uv_dif; |
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v_out += uv_dif; |
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} |
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} |
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#define MK_RGB555_B(RGB) ((RGB) << 3) & 0xf8 |
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/* rgb24 -> yuv 4:2:0 planar |
#define MK_RGB555_G(RGB) ((RGB) >> 2) & 0xf8 |
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#define MK_RGB555_R(RGB) ((RGB) >> 7) & 0xf8 |
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NOTE: always flips. |
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*/ |
#define MK_RGB565_B(RGB) ((RGB) << 3) & 0xf8 |
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#define MK_RGB565_G(RGB) ((RGB) >> 3) & 0xfc |
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void |
#define MK_RGB565_R(RGB) ((RGB) >> 8) & 0xf8 |
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rgb24_to_yv12_c(uint8_t * y_out, |
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uint8_t * u_out, |
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uint8_t * v_out, |
#define READ_RGB16_Y(ROW, UVID, C1,C2,C3,C4) \ |
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uint8_t * src, |
rgb = *(uint16_t *) (x_ptr + ((ROW)*x_stride) + 0); \ |
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int width, |
b##UVID += b = C1##_B(rgb); \ |
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int height, |
g##UVID += g = C1##_G(rgb); \ |
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int stride) |
r##UVID += r = C1##_R(rgb); \ |
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{ |
y_ptr[(ROW)*y_stride+0] = \ |
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uint32_t width3 = (width << 1) + width; /* width * 3 */ |
(uint8_t) ((FIX_IN(Y_R_IN) * r + FIX_IN(Y_G_IN) * g + \ |
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uint32_t src_dif = (width << 3) + width; /* width3 * 3 */ |
FIX_IN(Y_B_IN) * b) >> SCALEBITS_IN) + Y_ADD_IN; \ |
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uint32_t y_dif = (stride << 1) - width; |
rgb = *(uint16_t *) (x_ptr + ((ROW)*x_stride) + 2); \ |
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uint32_t uv_dif = (stride - width) >> 1; |
b##UVID += b = C1##_B(rgb); \ |
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uint32_t x, y; |
g##UVID += g = C1##_G(rgb); \ |
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r##UVID += r = C1##_R(rgb); \ |
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src += (height - 2) * width3; |
y_ptr[(ROW)*y_stride+1] = \ |
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(uint8_t) ((FIX_IN(Y_R_IN) * r + FIX_IN(Y_G_IN) * g + \ |
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FIX_IN(Y_B_IN) * b) >> SCALEBITS_IN) + Y_ADD_IN; |
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for (y = height >> 1; y; y--) { |
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for (x = width >> 1; x; x--) { |
#define READ_RGB16_UV(UV_ROW,UVID) \ |
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uint32_t r, g, b, r4, g4, b4; |
u_ptr[(UV_ROW)*uv_stride] = \ |
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(uint8_t) ((-FIX_IN(U_R_IN) * r##UVID - FIX_IN(U_G_IN) * g##UVID + \ |
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b4 = b = src[0]; |
FIX_IN(U_B_IN) * b##UVID) >> (SCALEBITS_IN + 2)) + U_ADD_IN; \ |
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g4 = g = src[1]; |
v_ptr[(UV_ROW)*uv_stride] = \ |
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r4 = r = src[2]; |
(uint8_t) ((FIX_IN(V_R_IN) * r##UVID - FIX_IN(V_G_IN) * g##UVID - \ |
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y_out[stride + 0] = |
FIX_IN(V_B_IN) * b##UVID) >> (SCALEBITS_IN + 2)) + V_ADD_IN; |
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(uint8_t) ((FIX_IN(Y_R_IN) * r + FIX_IN(Y_G_IN) * g + |
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FIX_IN(Y_B_IN) * b) >> SCALEBITS_IN) + Y_ADD_IN; |
#define RGB16_TO_YV12_ROW(SIZE,C1,C2,C3,C4) \ |
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/* nothing */ |
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b4 += (b = src[3]); |
#define RGB16_TO_YV12(SIZE,C1,C2,C3,C4) \ |
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g4 += (g = src[4]); |
uint32_t rgb, r, g, b, r0, g0, b0; \ |
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r4 += (r = src[5]); |
r0 = g0 = b0 = 0; \ |
| 193 |
y_out[stride + 1] = |
READ_RGB16_Y (0, 0, C1,C2,C3,C4) \ |
| 194 |
(uint8_t) ((FIX_IN(Y_R_IN) * r + FIX_IN(Y_G_IN) * g + |
READ_RGB16_Y (1, 0, C1,C2,C3,C4) \ |
| 195 |
FIX_IN(Y_B_IN) * b) >> SCALEBITS_IN) + Y_ADD_IN; |
READ_RGB16_UV(0, 0) |
| 196 |
|
|
| 197 |
b4 += (b = src[width3 + 0]); |
|
| 198 |
g4 += (g = src[width3 + 1]); |
#define RGB16I_TO_YV12_ROW(SIZE,C1,C2,C3,C4) \ |
| 199 |
r4 += (r = src[width3 + 2]); |
/* nothing */ |
| 200 |
y_out[0] = |
#define RGB16I_TO_YV12(SIZE,C1,C2,C3,C4) \ |
| 201 |
(uint8_t) ((FIX_IN(Y_R_IN) * r + FIX_IN(Y_G_IN) * g + |
uint32_t rgb, r, g, b, r0, g0, b0, r1, g1, b1; \ |
| 202 |
FIX_IN(Y_B_IN) * b) >> SCALEBITS_IN) + Y_ADD_IN; |
r0 = g0 = b0 = r1 = g1 = b1 = 0; \ |
| 203 |
|
READ_RGB16_Y (0, 0, C1,C2,C3,C4) \ |
| 204 |
b4 += (b = src[width3 + 3]); |
READ_RGB16_Y (1, 1, C1,C2,C3,C4) \ |
| 205 |
g4 += (g = src[width3 + 4]); |
READ_RGB16_Y (2, 0, C1,C2,C3,C4) \ |
| 206 |
r4 += (r = src[width3 + 5]); |
READ_RGB16_Y (3, 1, C1,C2,C3,C4) \ |
| 207 |
y_out[1] = |
READ_RGB16_UV(0, 0) \ |
| 208 |
(uint8_t) ((FIX_IN(Y_R_IN) * r + FIX_IN(Y_G_IN) * g + |
READ_RGB16_UV(1, 1) |
| 209 |
FIX_IN(Y_B_IN) * b) >> SCALEBITS_IN) + Y_ADD_IN; |
|
| 210 |
|
|
| 211 |
*u_out++ = |
/* rgb/rgbi input */ |
| 212 |
(uint8_t) ((-FIX_IN(U_R_IN) * r4 - FIX_IN(U_G_IN) * g4 + |
|
| 213 |
FIX_IN(U_B_IN) * b4) >> (SCALEBITS_IN + 2)) + |
#define READ_RGB_Y(SIZE, ROW, UVID, C1,C2,C3,C4) \ |
| 214 |
U_ADD_IN; |
r##UVID += r = x_ptr[(ROW)*x_stride+(C1)]; \ |
| 215 |
|
g##UVID += g = x_ptr[(ROW)*x_stride+(C2)]; \ |
| 216 |
|
b##UVID += b = x_ptr[(ROW)*x_stride+(C3)]; \ |
| 217 |
*v_out++ = |
y_ptr[(ROW)*y_stride+0] = \ |
| 218 |
(uint8_t) ((FIX_IN(V_R_IN) * r4 - FIX_IN(V_G_IN) * g4 - |
(uint8_t) ((FIX_IN(Y_R_IN) * r + FIX_IN(Y_G_IN) * g + \ |
| 219 |
FIX_IN(V_B_IN) * b4) >> (SCALEBITS_IN + 2)) + |
FIX_IN(Y_B_IN) * b) >> SCALEBITS_IN) + Y_ADD_IN; \ |
| 220 |
V_ADD_IN; |
r##UVID += r = x_ptr[(ROW)*x_stride+(SIZE)+(C1)]; \ |
| 221 |
|
g##UVID += g = x_ptr[(ROW)*x_stride+(SIZE)+(C2)]; \ |
| 222 |
|
b##UVID += b = x_ptr[(ROW)*x_stride+(SIZE)+(C3)]; \ |
| 223 |
src += 6; |
y_ptr[(ROW)*y_stride+1] = \ |
| 224 |
y_out += 2; |
(uint8_t) ((FIX_IN(Y_R_IN) * r + FIX_IN(Y_G_IN) * g + \ |
| 225 |
} |
FIX_IN(Y_B_IN) * b) >> SCALEBITS_IN) + Y_ADD_IN; |
| 226 |
src -= src_dif; |
|
| 227 |
y_out += y_dif; |
#define READ_RGB_UV(UV_ROW,UVID) \ |
| 228 |
u_out += uv_dif; |
u_ptr[(UV_ROW)*uv_stride] = \ |
| 229 |
v_out += uv_dif; |
(uint8_t) ((-FIX_IN(U_R_IN) * r##UVID - FIX_IN(U_G_IN) * g##UVID + \ |
| 230 |
} |
FIX_IN(U_B_IN) * b##UVID) >> (SCALEBITS_IN + 2)) + U_ADD_IN; \ |
| 231 |
} |
v_ptr[(UV_ROW)*uv_stride] = \ |
| 232 |
|
(uint8_t) ((FIX_IN(V_R_IN) * r##UVID - FIX_IN(V_G_IN) * g##UVID - \ |
| 233 |
|
FIX_IN(V_B_IN) * b##UVID) >> (SCALEBITS_IN + 2)) + V_ADD_IN; |
| 234 |
/* rgb32 -> yuv 4:2:0 planar |
|
| 235 |
|
|
| 236 |
NOTE: always flips |
#define RGB_TO_YV12_ROW(SIZE,C1,C2,C3,C4) \ |
| 237 |
*/ |
/* nothing */ |
| 238 |
|
#define RGB_TO_YV12(SIZE,C1,C2,C3,C4) \ |
| 239 |
void |
uint32_t r, g, b, r0, g0, b0; \ |
| 240 |
rgb32_to_yv12_c(uint8_t * y_out, |
r0 = g0 = b0 = 0; \ |
| 241 |
uint8_t * u_out, |
READ_RGB_Y(SIZE, 0, 0, C1,C2,C3,C4) \ |
| 242 |
uint8_t * v_out, |
READ_RGB_Y(SIZE, 1, 0, C1,C2,C3,C4) \ |
| 243 |
uint8_t * src, |
READ_RGB_UV( 0, 0) |
| 244 |
int width, |
|
| 245 |
int height, |
#define RGBI_TO_YV12_ROW(SIZE,C1,C2,C3,C4) \ |
| 246 |
int stride) |
/* nothing */ |
| 247 |
{ |
#define RGBI_TO_YV12(SIZE,C1,C2,C3,C4) \ |
| 248 |
uint32_t width4 = (width << 2); /* width * 4 */ |
uint32_t r, g, b, r0, g0, b0, r1, g1, b1; \ |
| 249 |
uint32_t src_dif = 3 * width4; |
r0 = g0 = b0 = r1 = g1 = b1 = 0; \ |
| 250 |
uint32_t y_dif = (stride << 1) - width; |
READ_RGB_Y(SIZE, 0, 0, C1,C2,C3,C4) \ |
| 251 |
uint32_t uv_dif = (stride - width) >> 1; |
READ_RGB_Y(SIZE, 1, 1, C1,C2,C3,C4) \ |
| 252 |
uint32_t x, y; |
READ_RGB_Y(SIZE, 2, 0, C1,C2,C3,C4) \ |
| 253 |
|
READ_RGB_Y(SIZE, 3, 1, C1,C2,C3,C4) \ |
| 254 |
src += (height - 2) * width4; |
READ_RGB_UV( 0, 0) \ |
| 255 |
|
READ_RGB_UV( 1, 1) |
| 256 |
for (y = height >> 1; y; y--) { |
|
| 257 |
for (x = width >> 1; x; x--) { |
|
| 258 |
uint32_t r, g, b, r4, g4, b4; |
/* yuyv/yuyvi input */ |
| 259 |
|
|
| 260 |
b4 = b = src[0]; |
#define READ_YUYV_Y(ROW,C1,C2,C3,C4) \ |
| 261 |
g4 = g = src[1]; |
y_ptr[(ROW)*y_stride+0] = x_ptr[(ROW)*x_stride+(C1)]; \ |
| 262 |
r4 = r = src[2]; |
y_ptr[(ROW)*y_stride+1] = x_ptr[(ROW)*x_stride+(C3)]; |
| 263 |
y_out[stride + 0] = |
#define READ_YUYV_UV(UV_ROW,ROW1,ROW2,C1,C2,C3,C4) \ |
| 264 |
(uint8_t) ((FIX_IN(Y_R_IN) * r + FIX_IN(Y_G_IN) * g + |
u_ptr[(UV_ROW)*uv_stride] = (x_ptr[(ROW1)*x_stride+(C2)] + x_ptr[(ROW2)*x_stride+(C2)] + 1) / 2; \ |
| 265 |
FIX_IN(Y_B_IN) * b) >> SCALEBITS_IN) + Y_ADD_IN; |
v_ptr[(UV_ROW)*uv_stride] = (x_ptr[(ROW1)*x_stride+(C4)] + x_ptr[(ROW2)*x_stride+(C4)] + 1) / 2; |
| 266 |
|
|
| 267 |
b4 += (b = src[4]); |
#define YUYV_TO_YV12_ROW(SIZE,C1,C2,C3,C4) \ |
| 268 |
g4 += (g = src[5]); |
/* nothing */ |
| 269 |
r4 += (r = src[6]); |
#define YUYV_TO_YV12(SIZE,C1,C2,C3,C4) \ |
| 270 |
y_out[stride + 1] = |
READ_YUYV_Y (0, C1,C2,C3,C4) \ |
| 271 |
(uint8_t) ((FIX_IN(Y_R_IN) * r + FIX_IN(Y_G_IN) * g + |
READ_YUYV_Y (1, C1,C2,C3,C4) \ |
| 272 |
FIX_IN(Y_B_IN) * b) >> SCALEBITS_IN) + Y_ADD_IN; |
READ_YUYV_UV(0, 0,1, C1,C2,C3,C4) |
| 273 |
|
|
| 274 |
b4 += (b = src[width4 + 0]); |
#define YUYVI_TO_YV12_ROW(SIZE,C1,C2,C3,C4) \ |
| 275 |
g4 += (g = src[width4 + 1]); |
/* nothing */ |
| 276 |
r4 += (r = src[width4 + 2]); |
#define YUYVI_TO_YV12(SIZE,C1,C2,C3,C4) \ |
| 277 |
|
READ_YUYV_Y (0, C1,C2,C3,C4) \ |
| 278 |
y_out[0] = |
READ_YUYV_Y (1, C1,C2,C3,C4) \ |
| 279 |
(uint8_t) ((FIX_IN(Y_R_IN) * r + FIX_IN(Y_G_IN) * g + |
READ_YUYV_Y (2, C1,C2,C3,C4) \ |
| 280 |
FIX_IN(Y_B_IN) * b) >> SCALEBITS_IN) + Y_ADD_IN; |
READ_YUYV_Y (3, C1,C2,C3,C4) \ |
| 281 |
|
READ_YUYV_UV(0, 0,2, C1,C2,C3,C4) \ |
| 282 |
b4 += (b = src[width4 + 4]); |
READ_YUYV_UV(1, 1,3, C1,C2,C3,C4) |
| 283 |
g4 += (g = src[width4 + 5]); |
|
| 284 |
r4 += (r = src[width4 + 6]); |
|
| 285 |
y_out[1] = |
MAKE_COLORSPACE(rgb555_to_yv12_c, 2,2,2, RGB16_TO_YV12, MK_RGB555, 0,0,0) |
| 286 |
(uint8_t) ((FIX_IN(Y_R_IN) * r + FIX_IN(Y_G_IN) * g + |
MAKE_COLORSPACE(rgb565_to_yv12_c, 2,2,2, RGB16_TO_YV12, MK_RGB565, 0,0,0) |
| 287 |
FIX_IN(Y_B_IN) * b) >> SCALEBITS_IN) + Y_ADD_IN; |
MAKE_COLORSPACE(bgr_to_yv12_c, 3,2,2, RGB_TO_YV12, 2,1,0, 0) |
| 288 |
|
MAKE_COLORSPACE(bgra_to_yv12_c, 4,2,2, RGB_TO_YV12, 2,1,0, 0) |
| 289 |
*u_out++ = |
MAKE_COLORSPACE(abgr_to_yv12_c, 4,2,2, RGB_TO_YV12, 3,2,1, 0) |
| 290 |
(uint8_t) ((-FIX_IN(U_R_IN) * r4 - FIX_IN(U_G_IN) * g4 + |
MAKE_COLORSPACE(rgba_to_yv12_c, 4,2,2, RGB_TO_YV12, 0,1,2, 0) |
| 291 |
FIX_IN(U_B_IN) * b4) >> (SCALEBITS_IN + 2)) + |
MAKE_COLORSPACE(yuyv_to_yv12_c, 2,2,2, YUYV_TO_YV12, 0,1,2,3) |
| 292 |
U_ADD_IN; |
MAKE_COLORSPACE(uyvy_to_yv12_c, 2,2,2, YUYV_TO_YV12, 1,0,3,2) |
| 293 |
|
|
| 294 |
*v_out++ = |
MAKE_COLORSPACE(rgb555i_to_yv12_c, 2,2,4, RGB16I_TO_YV12, MK_RGB555, 0,0,0) |
| 295 |
(uint8_t) ((FIX_IN(V_R_IN) * r4 - FIX_IN(V_G_IN) * g4 - |
MAKE_COLORSPACE(rgb565i_to_yv12_c, 2,2,4, RGB16I_TO_YV12, MK_RGB565, 0,0,0) |
| 296 |
FIX_IN(V_B_IN) * b4) >> (SCALEBITS_IN + 2)) + |
MAKE_COLORSPACE(bgri_to_yv12_c, 3,2,4, RGBI_TO_YV12, 2,1,0, 0) |
| 297 |
V_ADD_IN; |
MAKE_COLORSPACE(bgrai_to_yv12_c, 4,2,4, RGBI_TO_YV12, 2,1,0, 0) |
| 298 |
|
MAKE_COLORSPACE(abgri_to_yv12_c, 4,2,4, RGBI_TO_YV12, 3,2,1, 0) |
| 299 |
src += 8; |
MAKE_COLORSPACE(rgbai_to_yv12_c, 4,2,4, RGBI_TO_YV12, 0,1,2, 0) |
| 300 |
y_out += 2; |
MAKE_COLORSPACE(yuyvi_to_yv12_c, 2,2,4, YUYVI_TO_YV12, 0,1,2,3) |
| 301 |
} |
MAKE_COLORSPACE(uyvyi_to_yv12_c, 2,2,4, YUYVI_TO_YV12, 1,0,3,2) |
|
src -= src_dif; |
|
|
y_out += y_dif; |
|
|
u_out += uv_dif; |
|
|
v_out += uv_dif; |
|
|
} |
|
|
} |
|
|
|
|
|
/* yuv planar -> yuv 4:2:0 planar |
|
|
|
|
|
NOTE: does not flip */ |
|
|
|
|
|
void |
|
|
yuv_to_yv12_c(uint8_t * y_out, |
|
|
uint8_t * u_out, |
|
|
uint8_t * v_out, |
|
|
uint8_t * src, |
|
|
int width, |
|
|
int height, |
|
|
int stride) |
|
|
{ |
|
|
uint32_t stride2 = stride >> 1; |
|
|
uint32_t width2 = width >> 1; |
|
|
uint32_t y; |
|
|
|
|
|
for (y = height; y; y--) { |
|
|
memcpy(y_out, src, width); |
|
|
src += width; |
|
|
y_out += stride; |
|
|
} |
|
|
|
|
|
for (y = height >> 1; y; y--) { |
|
|
memcpy(u_out, src, width2); |
|
|
src += width2; |
|
|
u_out += stride2; |
|
|
} |
|
|
|
|
|
for (y = height >> 1; y; y--) { |
|
|
memcpy(v_out, src, width2); |
|
|
src += width2; |
|
|
v_out += stride2; |
|
|
} |
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
/* yuyv (yuv2) packed -> yuv 4:2:0 planar |
|
|
|
|
|
NOTE: does not flip */ |
|
|
|
|
|
void |
|
|
yuyv_to_yv12_c(uint8_t * y_out, |
|
|
uint8_t * u_out, |
|
|
uint8_t * v_out, |
|
|
uint8_t * src, |
|
|
int width, |
|
|
int height, |
|
|
int stride) |
|
|
{ |
|
|
uint32_t width2 = width + width; |
|
|
uint32_t y_dif = stride - width; |
|
|
uint32_t uv_dif = y_dif >> 1; |
|
|
uint32_t x, y; |
|
|
|
|
|
for (y = height >> 1; y; y--) { |
|
|
|
|
|
for (x = width >> 1; x; x--) { |
|
|
*y_out++ = *src++; |
|
|
//*u_out++ = *src++; |
|
|
*u_out++ = (*(src + width2) + *src) >> 1; |
|
|
src++; |
|
|
*y_out++ = *src++; |
|
|
//*v_out++ = *src++; |
|
|
*v_out++ = (*(src + width2) + *src) >> 1; |
|
|
src++; |
|
|
|
|
|
} |
|
|
|
|
|
y_out += y_dif; |
|
|
u_out += uv_dif; |
|
|
v_out += uv_dif; |
|
|
|
|
|
for (x = width >> 1; x; x--) { |
|
|
*y_out++ = *src++; |
|
|
src++; |
|
|
*y_out++ = *src++; |
|
|
src++; |
|
|
} |
|
|
|
|
|
y_out += y_dif; |
|
|
|
|
|
} |
|
|
|
|
|
} |
|
| 302 |
|
|
| 303 |
|
|
| 304 |
|
/********** colorspace output (yv12_to_xxx) functions **********/ |
|
/* uyvy packed -> yuv 4:2:0 planar |
|
|
|
|
|
NOTE: does not flip */ |
|
|
|
|
|
|
|
|
void |
|
|
uyvy_to_yv12_c(uint8_t * y_out, |
|
|
uint8_t * u_out, |
|
|
uint8_t * v_out, |
|
|
uint8_t * src, |
|
|
int width, |
|
|
int height, |
|
|
int stride) |
|
|
{ |
|
|
uint32_t width2 = width + width; |
|
|
uint32_t y_dif = stride - width; |
|
|
uint32_t uv_dif = y_dif >> 1; |
|
|
uint32_t x, y; |
|
|
|
|
|
for (y = height >> 1; y; y--) { |
|
|
|
|
|
for (x = width >> 1; x; x--) { |
|
|
*u_out++ = *src++; |
|
|
// *u_out++ = (*(src+width2) + *src++) >> 1; |
|
|
*y_out++ = *src++; |
|
|
//*v_out++ = *src++; |
|
|
*v_out++ = (*(src + width2) + *src) >> 1; |
|
|
src++; |
|
|
*y_out++ = *src++; |
|
|
} |
|
|
|
|
|
y_out += y_dif; |
|
|
u_out += uv_dif;; |
|
|
v_out += uv_dif;; |
|
|
|
|
|
for (x = width >> 1; x; x--) { |
|
|
src++; |
|
|
*y_out++ = *src++; |
|
|
src++; |
|
|
*y_out++ = *src++; |
|
|
} |
|
|
|
|
|
y_out += y_dif; |
|
|
} |
|
|
} |
|
|
|
|
| 305 |
|
|
| 306 |
/* yuv -> rgb def's */ |
/* yuv -> rgb def's */ |
| 307 |
|
|
| 316 |
#define R_V_OUT 1.596 |
#define R_V_OUT 1.596 |
| 317 |
#define V_ADD_OUT 128 |
#define V_ADD_OUT 128 |
| 318 |
|
|
|
|
|
| 319 |
#define SCALEBITS_OUT 13 |
#define SCALEBITS_OUT 13 |
| 320 |
#define FIX_OUT(x) ((uint16_t) ((x) * (1L<<SCALEBITS_OUT) + 0.5)) |
#define FIX_OUT(x) ((uint16_t) ((x) * (1L<<SCALEBITS_OUT) + 0.5)) |
| 321 |
|
|
| 322 |
|
|
| 323 |
/* initialize rgb lookup tables */ |
/* rgb16/rgb16i output */ |
| 324 |
|
|
| 325 |
void |
#define MK_RGB555(R,G,B) \ |
| 326 |
colorspace_init(void) |
((MAX(0,MIN(255, R)) << 7) & 0x7c00) | \ |
|
{ |
|
|
int32_t i; |
|
|
|
|
|
for (i = 0; i < 256; i++) { |
|
|
RGB_Y_tab[i] = FIX_OUT(RGB_Y_OUT) * (i - Y_ADD_OUT); |
|
|
B_U_tab[i] = FIX_OUT(B_U_OUT) * (i - U_ADD_OUT); |
|
|
G_U_tab[i] = FIX_OUT(G_U_OUT) * (i - U_ADD_OUT); |
|
|
G_V_tab[i] = FIX_OUT(G_V_OUT) * (i - V_ADD_OUT); |
|
|
R_V_tab[i] = FIX_OUT(R_V_OUT) * (i - V_ADD_OUT); |
|
|
} |
|
|
} |
|
|
|
|
|
/* yuv 4:2:0 planar -> rgb555 + very simple error diffusion |
|
|
*/ |
|
|
|
|
|
#define MK_RGB555(R,G,B) ((MAX(0,MIN(255, R)) << 7) & 0x7c00) | \ |
|
| 327 |
((MAX(0,MIN(255, G)) << 2) & 0x03e0) | \ |
((MAX(0,MIN(255, G)) << 2) & 0x03e0) | \ |
| 328 |
((MAX(0,MIN(255, B)) >> 3) & 0x001f) |
((MAX(0,MIN(255, B)) >> 3) & 0x001f) |
| 329 |
|
|
| 330 |
|
#define MK_RGB565(R,G,B) \ |
| 331 |
void |
((MAX(0,MIN(255, R)) << 8) & 0xf800) | \ |
|
yv12_to_rgb555_c(uint8_t * dst, |
|
|
int dst_stride, |
|
|
uint8_t * y_src, |
|
|
uint8_t * u_src, |
|
|
uint8_t * v_src, |
|
|
int y_stride, |
|
|
int uv_stride, |
|
|
int width, |
|
|
int height) |
|
|
{ |
|
|
const uint32_t dst_dif = 4 * dst_stride - 2 * width; |
|
|
int32_t y_dif = 2 * y_stride - width; |
|
|
|
|
|
uint8_t *dst2 = dst + 2 * dst_stride; |
|
|
uint8_t *y_src2 = y_src + y_stride; |
|
|
uint32_t x, y; |
|
|
|
|
|
if (height < 0) { |
|
|
height = -height; |
|
|
y_src += (height - 1) * y_stride; |
|
|
y_src2 = y_src - y_stride; |
|
|
u_src += (height / 2 - 1) * uv_stride; |
|
|
v_src += (height / 2 - 1) * uv_stride; |
|
|
y_dif = -width - 2 * y_stride; |
|
|
uv_stride = -uv_stride; |
|
|
} |
|
|
|
|
|
for (y = height / 2; y; y--) { |
|
|
int r, g, b; |
|
|
int r2, g2, b2; |
|
|
|
|
|
r = g = b = 0; |
|
|
r2 = g2 = b2 = 0; |
|
|
|
|
|
// process one 2x2 block per iteration |
|
|
for (x = 0; x < (uint32_t) width / 2; x++) { |
|
|
int u, v; |
|
|
int b_u, g_uv, r_v, rgb_y; |
|
|
|
|
|
u = u_src[x]; |
|
|
v = v_src[x]; |
|
|
|
|
|
b_u = B_U_tab[u]; |
|
|
g_uv = G_U_tab[u] + G_V_tab[v]; |
|
|
r_v = R_V_tab[v]; |
|
|
|
|
|
rgb_y = RGB_Y_tab[*y_src]; |
|
|
b = (b & 0x7) + ((rgb_y + b_u) >> SCALEBITS_OUT); |
|
|
g = (g & 0x7) + ((rgb_y - g_uv) >> SCALEBITS_OUT); |
|
|
r = (r & 0x7) + ((rgb_y + r_v) >> SCALEBITS_OUT); |
|
|
*(uint16_t *) dst = MK_RGB555(r, g, b); |
|
|
|
|
|
y_src++; |
|
|
rgb_y = RGB_Y_tab[*y_src]; |
|
|
b = (b & 0x7) + ((rgb_y + b_u) >> SCALEBITS_OUT); |
|
|
g = (g & 0x7) + ((rgb_y - g_uv) >> SCALEBITS_OUT); |
|
|
r = (r & 0x7) + ((rgb_y + r_v) >> SCALEBITS_OUT); |
|
|
*(uint16_t *) (dst + 2) = MK_RGB555(r, g, b); |
|
|
y_src++; |
|
|
|
|
|
rgb_y = RGB_Y_tab[*y_src2]; |
|
|
b2 = (b2 & 0x7) + ((rgb_y + b_u) >> SCALEBITS_OUT); |
|
|
g2 = (g2 & 0x7) + ((rgb_y - g_uv) >> SCALEBITS_OUT); |
|
|
r2 = (r2 & 0x7) + ((rgb_y + r_v) >> SCALEBITS_OUT); |
|
|
*(uint16_t *) (dst2) = MK_RGB555(r2, g2, b2); |
|
|
y_src2++; |
|
|
|
|
|
rgb_y = RGB_Y_tab[*y_src2]; |
|
|
b2 = (b2 & 0x7) + ((rgb_y + b_u) >> SCALEBITS_OUT); |
|
|
g2 = (g2 & 0x7) + ((rgb_y - g_uv) >> SCALEBITS_OUT); |
|
|
r2 = (r2 & 0x7) + ((rgb_y + r_v) >> SCALEBITS_OUT); |
|
|
*(uint16_t *) (dst2 + 2) = MK_RGB555(r2, g2, b2); |
|
|
y_src2++; |
|
|
|
|
|
dst += 4; |
|
|
dst2 += 4; |
|
|
} |
|
|
|
|
|
dst += dst_dif; |
|
|
dst2 += dst_dif; |
|
|
|
|
|
y_src += y_dif; |
|
|
y_src2 += y_dif; |
|
|
|
|
|
u_src += uv_stride; |
|
|
v_src += uv_stride; |
|
|
} |
|
|
} |
|
|
|
|
|
|
|
|
/* yuv 4:2:0 planar -> rgb565 + very simple error diffusion |
|
|
NOTE: identical to rgb555 except for shift/mask */ |
|
|
|
|
|
|
|
|
#define MK_RGB565(R,G,B) ((MAX(0,MIN(255, R)) << 8) & 0xf800) | \ |
|
| 332 |
((MAX(0,MIN(255, G)) << 3) & 0x07e0) | \ |
((MAX(0,MIN(255, G)) << 3) & 0x07e0) | \ |
| 333 |
((MAX(0,MIN(255, B)) >> 3) & 0x001f) |
((MAX(0,MIN(255, B)) >> 3) & 0x001f) |
| 334 |
|
|
| 335 |
void |
#define WRITE_RGB16(ROW,UV_ROW,C1) \ |
| 336 |
yv12_to_rgb565_c(uint8_t * dst, |
rgb_y = RGB_Y_tab[ y_ptr[y_stride + 0] ]; \ |
| 337 |
int dst_stride, |
b[ROW] = (b[ROW] & 0x7) + ((rgb_y + b_u##UV_ROW) >> SCALEBITS_OUT); \ |
| 338 |
uint8_t * y_src, |
g[ROW] = (g[ROW] & 0x7) + ((rgb_y - g_uv##UV_ROW) >> SCALEBITS_OUT); \ |
| 339 |
uint8_t * u_src, |
r[ROW] = (r[ROW] & 0x7) + ((rgb_y + r_v##UV_ROW) >> SCALEBITS_OUT); \ |
| 340 |
uint8_t * v_src, |
*(uint16_t *) (x_ptr+((ROW)*x_stride)+0) = C1(r[ROW], g[ROW], b[ROW]); \ |
| 341 |
int y_stride, |
rgb_y = RGB_Y_tab[ y_ptr[y_stride + 1] ]; \ |
| 342 |
int uv_stride, |
b[ROW] = (b[ROW] & 0x7) + ((rgb_y + b_u##UV_ROW) >> SCALEBITS_OUT); \ |
| 343 |
int width, |
g[ROW] = (g[ROW] & 0x7) + ((rgb_y - g_uv##UV_ROW) >> SCALEBITS_OUT); \ |
| 344 |
int height) |
r[ROW] = (r[ROW] & 0x7) + ((rgb_y + r_v##UV_ROW) >> SCALEBITS_OUT); \ |
| 345 |
{ |
*(uint16_t *) (x_ptr+((ROW)*x_stride)+2) = C1(r[ROW], g[ROW], b[ROW]); |
| 346 |
const uint32_t dst_dif = 4 * dst_stride - 2 * width; |
|
| 347 |
int32_t y_dif = 2 * y_stride - width; |
#define YV12_TO_RGB16_ROW(SIZE,C1,C2,C3,C4) \ |
| 348 |
|
int r[2], g[2], b[2]; \ |
| 349 |
uint8_t *dst2 = dst + 2 * dst_stride; |
r[0] = r[1] = g[0] = g[1] = b[0] = b[1] = 0; |
| 350 |
uint8_t *y_src2 = y_src + y_stride; |
#define YV12_TO_RGB16(SIZE,C1,C2,C3,C4) \ |
| 351 |
uint32_t x, y; |
int rgb_y; \ |
| 352 |
|
int b_u0 = B_U_tab[ u_ptr[0] ]; \ |
| 353 |
if (height < 0) { // flip image? |
int g_uv0 = G_U_tab[ u_ptr[0] ] + G_V_tab[ v_ptr[0] ]; \ |
| 354 |
height = -height; |
int r_v0 = R_V_tab[ v_ptr[0] ]; \ |
| 355 |
y_src += (height - 1) * y_stride; |
WRITE_RGB16(0, 0, C1) \ |
| 356 |
y_src2 = y_src - y_stride; |
WRITE_RGB16(1, 0, C1) |
| 357 |
u_src += (height / 2 - 1) * uv_stride; |
|
| 358 |
v_src += (height / 2 - 1) * uv_stride; |
#define YV12_TO_RGB16I_ROW(SIZE,C1,C2,C3,C4) \ |
| 359 |
y_dif = -width - 2 * y_stride; |
int r[4], g[4], b[4]; \ |
| 360 |
uv_stride = -uv_stride; |
r[0] = r[1] = r[2] = r[3] = 0; \ |
| 361 |
} |
g[0] = g[1] = g[2] = g[3] = 0; \ |
| 362 |
|
b[0] = b[1] = b[2] = b[3] = 0; |
| 363 |
for (y = height / 2; y; y--) { |
#define YV12_TO_RGB16I(SIZE,C1,C2,C3,C4) \ |
| 364 |
int r, g, b; |
int rgb_y; \ |
| 365 |
int r2, g2, b2; |
int b_u0 = B_U_tab[ u_ptr[0] ]; \ |
| 366 |
|
int g_uv0 = G_U_tab[ u_ptr[0] ] + G_V_tab[ v_ptr[0] ]; \ |
| 367 |
r = g = b = 0; |
int r_v0 = R_V_tab[ v_ptr[0] ]; \ |
| 368 |
r2 = g2 = b2 = 0; |
int b_u1 = B_U_tab[ u_ptr[uv_stride] ]; \ |
| 369 |
|
int g_uv1 = G_U_tab[ u_ptr[uv_stride] ] + G_V_tab[ v_ptr[uv_stride] ]; \ |
| 370 |
// process one 2x2 block per iteration |
int r_v1 = R_V_tab[ v_ptr[uv_stride] ]; \ |
| 371 |
for (x = 0; x < (uint32_t) width / 2; x++) { |
WRITE_RGB16(0, 0, C1) \ |
| 372 |
int u, v; |
WRITE_RGB16(1, 1, C1) \ |
| 373 |
int b_u, g_uv, r_v, rgb_y; |
WRITE_RGB16(2, 0, C1) \ |
| 374 |
|
WRITE_RGB16(3, 1, C1) \ |
| 375 |
u = u_src[x]; |
|
| 376 |
v = v_src[x]; |
|
| 377 |
|
/* rgb/rgbi output */ |
| 378 |
b_u = B_U_tab[u]; |
|
| 379 |
g_uv = G_U_tab[u] + G_V_tab[v]; |
#define WRITE_RGB(SIZE,ROW,UV_ROW,C1,C2,C3,C4) \ |
| 380 |
r_v = R_V_tab[v]; |
rgb_y = RGB_Y_tab[ y_ptr[(ROW)*y_stride + 0] ]; \ |
| 381 |
|
x_ptr[(ROW)*x_stride+(C3)] = MAX(0, MIN(255, (rgb_y + b_u##UV_ROW) >> SCALEBITS_OUT)); \ |
| 382 |
rgb_y = RGB_Y_tab[*y_src]; |
x_ptr[(ROW)*x_stride+(C2)] = MAX(0, MIN(255, (rgb_y - g_uv##UV_ROW) >> SCALEBITS_OUT)); \ |
| 383 |
b = (b & 0x7) + ((rgb_y + b_u) >> SCALEBITS_OUT); |
x_ptr[(ROW)*x_stride+(C1)] = MAX(0, MIN(255, (rgb_y + r_v##UV_ROW) >> SCALEBITS_OUT)); \ |
| 384 |
g = (g & 0x7) + ((rgb_y - g_uv) >> SCALEBITS_OUT); |
if ((SIZE)>3) x_ptr[(ROW)*x_stride+(C4)] = 0; \ |
| 385 |
r = (r & 0x7) + ((rgb_y + r_v) >> SCALEBITS_OUT); |
rgb_y = RGB_Y_tab[ y_ptr[(ROW)*y_stride + 1] ]; \ |
| 386 |
*(uint16_t *) dst = MK_RGB565(r, g, b); |
x_ptr[(ROW)*x_stride+(SIZE)+(C3)] = MAX(0, MIN(255, (rgb_y + b_u##UV_ROW) >> SCALEBITS_OUT)); \ |
| 387 |
|
x_ptr[(ROW)*x_stride+(SIZE)+(C2)] = MAX(0, MIN(255, (rgb_y - g_uv##UV_ROW) >> SCALEBITS_OUT)); \ |
| 388 |
y_src++; |
x_ptr[(ROW)*x_stride+(SIZE)+(C1)] = MAX(0, MIN(255, (rgb_y + r_v##UV_ROW) >> SCALEBITS_OUT)); \ |
| 389 |
rgb_y = RGB_Y_tab[*y_src]; |
if ((SIZE)>3) x_ptr[(ROW)*x_stride+(SIZE)+(C4)] = 0; |
| 390 |
b = (b & 0x7) + ((rgb_y + b_u) >> SCALEBITS_OUT); |
|
| 391 |
g = (g & 0x7) + ((rgb_y - g_uv) >> SCALEBITS_OUT); |
|
| 392 |
r = (r & 0x7) + ((rgb_y + r_v) >> SCALEBITS_OUT); |
#define YV12_TO_RGB_ROW(SIZE,C1,C2,C3,C4) /* nothing */ |
| 393 |
*(uint16_t *) (dst + 2) = MK_RGB565(r, g, b); |
#define YV12_TO_RGB(SIZE,C1,C2,C3,C4) \ |
| 394 |
y_src++; |
int rgb_y; \ |
| 395 |
|
int b_u0 = B_U_tab[ u_ptr[0] ]; \ |
| 396 |
rgb_y = RGB_Y_tab[*y_src2]; |
int g_uv0 = G_U_tab[ u_ptr[0] ] + G_V_tab[ v_ptr[0] ]; \ |
| 397 |
b2 = (b2 & 0x7) + ((rgb_y + b_u) >> SCALEBITS_OUT); |
int r_v0 = R_V_tab[ v_ptr[0] ]; \ |
| 398 |
g2 = (g2 & 0x7) + ((rgb_y - g_uv) >> SCALEBITS_OUT); |
WRITE_RGB(SIZE, 0, 0, C1,C2,C3,C4) \ |
| 399 |
r2 = (r2 & 0x7) + ((rgb_y + r_v) >> SCALEBITS_OUT); |
WRITE_RGB(SIZE, 1, 0, C1,C2,C3,C4) |
| 400 |
*(uint16_t *) (dst2) = MK_RGB565(r2, g2, b2); |
|
| 401 |
y_src2++; |
#define YV12_TO_RGBI_ROW(SIZE,C1,C2,C3,C4) /* nothing */ |
| 402 |
|
#define YV12_TO_RGBI(SIZE,C1,C2,C3,C4) \ |
| 403 |
rgb_y = RGB_Y_tab[*y_src2]; |
int rgb_y; \ |
| 404 |
b2 = (b2 & 0x7) + ((rgb_y + b_u) >> SCALEBITS_OUT); |
int b_u0 = B_U_tab[ u_ptr[0] ]; \ |
| 405 |
g2 = (g2 & 0x7) + ((rgb_y - g_uv) >> SCALEBITS_OUT); |
int g_uv0 = G_U_tab[ u_ptr[0] ] + G_V_tab[ v_ptr[0] ]; \ |
| 406 |
r2 = (r2 & 0x7) + ((rgb_y + r_v) >> SCALEBITS_OUT); |
int r_v0 = R_V_tab[ v_ptr[0] ]; \ |
| 407 |
*(uint16_t *) (dst2 + 2) = MK_RGB565(r2, g2, b2); |
int b_u1 = B_U_tab[ u_ptr[uv_stride] ]; \ |
| 408 |
y_src2++; |
int g_uv1 = G_U_tab[ u_ptr[uv_stride] ] + G_V_tab[ v_ptr[uv_stride] ]; \ |
| 409 |
|
int r_v1 = R_V_tab[ v_ptr[uv_stride] ]; \ |
| 410 |
dst += 4; |
WRITE_RGB(SIZE, 0, 0, C1,C2,C3,C4) \ |
| 411 |
dst2 += 4; |
WRITE_RGB(SIZE, 1, 1, C1,C2,C3,C4) \ |
| 412 |
} |
WRITE_RGB(SIZE, 2, 0, C1,C2,C3,C4) \ |
| 413 |
|
WRITE_RGB(SIZE, 3, 1, C1,C2,C3,C4) |
| 414 |
dst += dst_dif; |
|
| 415 |
dst2 += dst_dif; |
|
| 416 |
|
/* yuyv/yuyvi output */ |
| 417 |
y_src += y_dif; |
|
| 418 |
y_src2 += y_dif; |
#define WRITE_YUYV(ROW,UV_ROW,C1,C2,C3,C4) \ |
| 419 |
|
x_ptr[(ROW)*x_stride+(C1)] = y_ptr[ (ROW)*y_stride +0]; \ |
| 420 |
u_src += uv_stride; |
x_ptr[(ROW)*x_stride+(C2)] = u_ptr[(UV_ROW)*uv_stride+0]; \ |
| 421 |
v_src += uv_stride; |
x_ptr[(ROW)*x_stride+(C3)] = y_ptr[ (ROW)*y_stride +1]; \ |
| 422 |
} |
x_ptr[(ROW)*x_stride+(C4)] = v_ptr[(UV_ROW)*uv_stride+0]; \ |
| 423 |
} |
|
| 424 |
|
#define YV12_TO_YUYV_ROW(SIZE,C1,C2,C3,C4) /* nothing */ |
| 425 |
|
#define YV12_TO_YUYV(SIZE,C1,C2,C3,C4) \ |
| 426 |
|
WRITE_YUYV(0, 0, C1,C2,C3,C4) \ |
| 427 |
/* yuv 4:2:0 planar -> rgb24 */ |
WRITE_YUYV(1, 0, C1,C2,C3,C4) |
| 428 |
|
|
| 429 |
void |
#define YV12_TO_YUYVI_ROW(SIZE,C1,C2,C3,C4) /* nothing */ |
| 430 |
yv12_to_rgb24_c(uint8_t * dst, |
#define YV12_TO_YUYVI(SIZE,C1,C2,C3,C4) \ |
| 431 |
int dst_stride, |
WRITE_YUYV(0, 0, C1,C2,C3,C4) \ |
| 432 |
uint8_t * y_src, |
WRITE_YUYV(1, 1, C1,C2,C3,C4) \ |
| 433 |
uint8_t * u_src, |
WRITE_YUYV(2, 0, C1,C2,C3,C4) \ |
| 434 |
uint8_t * v_src, |
WRITE_YUYV(3, 1, C1,C2,C3,C4) |
| 435 |
int y_stride, |
|
| 436 |
int uv_stride, |
|
| 437 |
int width, |
MAKE_COLORSPACE(yv12_to_rgb555_c, 2,2,2, YV12_TO_RGB16, MK_RGB555, 0,0,0) |
| 438 |
int height) |
MAKE_COLORSPACE(yv12_to_rgb565_c, 2,2,2, YV12_TO_RGB16, MK_RGB565, 0,0,0) |
| 439 |
{ |
MAKE_COLORSPACE(yv12_to_bgr_c, 3,2,2, YV12_TO_RGB, 2,1,0, 0) |
| 440 |
const uint32_t dst_dif = 6 * dst_stride - 3 * width; |
MAKE_COLORSPACE(yv12_to_bgra_c, 4,2,2, YV12_TO_RGB, 2,1,0,3) |
| 441 |
int32_t y_dif = 2 * y_stride - width; |
MAKE_COLORSPACE(yv12_to_abgr_c, 4,2,2, YV12_TO_RGB, 3,2,1,0) |
| 442 |
|
MAKE_COLORSPACE(yv12_to_rgba_c, 4,2,2, YV12_TO_RGB, 0,1,2,3) |
| 443 |
uint8_t *dst2 = dst + 3 * dst_stride; |
MAKE_COLORSPACE(yv12_to_yuyv_c, 2,2,2, YV12_TO_YUYV, 0,1,2,3) |
| 444 |
uint8_t *y_src2 = y_src + y_stride; |
MAKE_COLORSPACE(yv12_to_uyvy_c, 2,2,2, YV12_TO_YUYV, 1,0,3,2) |
| 445 |
uint32_t x, y; |
|
| 446 |
|
MAKE_COLORSPACE(yv12_to_rgb555i_c, 2,2,4, YV12_TO_RGB16I, MK_RGB555, 0,0,0) |
| 447 |
if (height < 0) { // flip image? |
MAKE_COLORSPACE(yv12_to_rgb565i_c, 2,2,4, YV12_TO_RGB16I, MK_RGB565, 0,0,0) |
| 448 |
height = -height; |
MAKE_COLORSPACE(yv12_to_bgri_c, 3,2,4, YV12_TO_RGBI, 2,1,0, 0) |
| 449 |
y_src += (height - 1) * y_stride; |
MAKE_COLORSPACE(yv12_to_bgrai_c, 4,2,4, YV12_TO_RGBI, 2,1,0,3) |
| 450 |
y_src2 = y_src - y_stride; |
MAKE_COLORSPACE(yv12_to_abgri_c, 4,2,4, YV12_TO_RGBI, 3,2,1,0) |
| 451 |
u_src += (height / 2 - 1) * uv_stride; |
MAKE_COLORSPACE(yv12_to_rgbai_c, 4,2,4, YV12_TO_RGBI, 0,1,2,3) |
| 452 |
v_src += (height / 2 - 1) * uv_stride; |
MAKE_COLORSPACE(yv12_to_yuyvi_c, 2,2,4, YV12_TO_YUYVI, 0,1,2,3) |
| 453 |
y_dif = -width - 2 * y_stride; |
MAKE_COLORSPACE(yv12_to_uyvyi_c, 2,2,4, YV12_TO_YUYVI, 1,0,3,2) |
| 454 |
uv_stride = -uv_stride; |
|
| 455 |
} |
|
| 456 |
|
|
| 457 |
for (y = height / 2; y; y--) { |
/* yv12 to yv12 copy function */ |
| 458 |
// process one 2x2 block per iteration |
|
| 459 |
for (x = 0; x < (uint32_t) width / 2; x++) { |
void |
| 460 |
int u, v; |
yv12_to_yv12_c(uint8_t * y_dst, uint8_t * u_dst, uint8_t * v_dst, |
| 461 |
int b_u, g_uv, r_v, rgb_y; |
int y_dst_stride, int uv_dst_stride, |
| 462 |
int r, g, b; |
uint8_t * y_src, uint8_t * u_src, uint8_t * v_src, |
| 463 |
|
int y_src_stride, int uv_src_stride, |
| 464 |
u = u_src[x]; |
int width, int height, int vflip) |
| 465 |
v = v_src[x]; |
{ |
| 466 |
|
int width2 = width / 2; |
| 467 |
b_u = B_U_tab[u]; |
int height2 = height / 2; |
| 468 |
g_uv = G_U_tab[u] + G_V_tab[v]; |
int y; |
| 469 |
r_v = R_V_tab[v]; |
|
| 470 |
|
if (vflip) { |
| 471 |
rgb_y = RGB_Y_tab[*y_src]; |
y_src += (height - 1) * y_src_stride; |
| 472 |
b = (rgb_y + b_u) >> SCALEBITS_OUT; |
u_src += (height2 - 1) * uv_src_stride; |
| 473 |
g = (rgb_y - g_uv) >> SCALEBITS_OUT; |
v_src += (height2 - 1) * uv_src_stride; |
| 474 |
r = (rgb_y + r_v) >> SCALEBITS_OUT; |
y_src_stride = -y_src_stride; |
| 475 |
dst[0] = MAX(0, MIN(255, b)); |
uv_src_stride = -uv_src_stride; |
|
dst[1] = MAX(0, MIN(255, g)); |
|
|
dst[2] = MAX(0, MIN(255, r)); |
|
|
|
|
|
y_src++; |
|
|
rgb_y = RGB_Y_tab[*y_src]; |
|
|
b = (rgb_y + b_u) >> SCALEBITS_OUT; |
|
|
g = (rgb_y - g_uv) >> SCALEBITS_OUT; |
|
|
r = (rgb_y + r_v) >> SCALEBITS_OUT; |
|
|
dst[3] = MAX(0, MIN(255, b)); |
|
|
dst[4] = MAX(0, MIN(255, g)); |
|
|
dst[5] = MAX(0, MIN(255, r)); |
|
|
y_src++; |
|
|
|
|
|
rgb_y = RGB_Y_tab[*y_src2]; |
|
|
b = (rgb_y + b_u) >> SCALEBITS_OUT; |
|
|
g = (rgb_y - g_uv) >> SCALEBITS_OUT; |
|
|
r = (rgb_y + r_v) >> SCALEBITS_OUT; |
|
|
dst2[0] = MAX(0, MIN(255, b)); |
|
|
dst2[1] = MAX(0, MIN(255, g)); |
|
|
dst2[2] = MAX(0, MIN(255, r)); |
|
|
y_src2++; |
|
|
|
|
|
rgb_y = RGB_Y_tab[*y_src2]; |
|
|
b = (rgb_y + b_u) >> SCALEBITS_OUT; |
|
|
g = (rgb_y - g_uv) >> SCALEBITS_OUT; |
|
|
r = (rgb_y + r_v) >> SCALEBITS_OUT; |
|
|
dst2[3] = MAX(0, MIN(255, b)); |
|
|
dst2[4] = MAX(0, MIN(255, g)); |
|
|
dst2[5] = MAX(0, MIN(255, r)); |
|
|
y_src2++; |
|
|
|
|
|
dst += 6; |
|
|
dst2 += 6; |
|
|
} |
|
|
|
|
|
dst += dst_dif; |
|
|
dst2 += dst_dif; |
|
|
|
|
|
y_src += y_dif; |
|
|
y_src2 += y_dif; |
|
|
|
|
|
u_src += uv_stride; |
|
|
v_src += uv_stride; |
|
|
} |
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
/* yuv 4:2:0 planar -> rgb32 */ |
|
|
|
|
|
void |
|
|
yv12_to_rgb32_c(uint8_t * dst, |
|
|
int dst_stride, |
|
|
uint8_t * y_src, |
|
|
uint8_t * v_src, |
|
|
uint8_t * u_src, |
|
|
int y_stride, |
|
|
int uv_stride, |
|
|
int width, |
|
|
int height) |
|
|
{ |
|
|
const uint32_t dst_dif = 8 * dst_stride - 4 * width; |
|
|
int32_t y_dif = 2 * y_stride - width; |
|
|
|
|
|
uint8_t *dst2 = dst + 4 * dst_stride; |
|
|
uint8_t *y_src2 = y_src + y_stride; |
|
|
uint32_t x, y; |
|
|
|
|
|
if (height < 0) { // flip image? |
|
|
height = -height; |
|
|
y_src += (height - 1) * y_stride; |
|
|
y_src2 = y_src - y_stride; |
|
|
u_src += (height / 2 - 1) * uv_stride; |
|
|
v_src += (height / 2 - 1) * uv_stride; |
|
|
y_dif = -width - 2 * y_stride; |
|
|
uv_stride = -uv_stride; |
|
|
} |
|
|
|
|
|
for (y = height / 2; y; y--) { |
|
|
// process one 2x2 block per iteration |
|
|
for (x = 0; x < (uint32_t) width / 2; x++) { |
|
|
int u, v; |
|
|
int b_u, g_uv, r_v, rgb_y; |
|
|
int r, g, b; |
|
|
|
|
|
u = u_src[x]; |
|
|
v = v_src[x]; |
|
|
|
|
|
b_u = B_U_tab[u]; |
|
|
g_uv = G_U_tab[u] + G_V_tab[v]; |
|
|
r_v = R_V_tab[v]; |
|
|
|
|
|
rgb_y = RGB_Y_tab[*y_src]; |
|
|
b = (rgb_y + b_u) >> SCALEBITS_OUT; |
|
|
g = (rgb_y - g_uv) >> SCALEBITS_OUT; |
|
|
r = (rgb_y + r_v) >> SCALEBITS_OUT; |
|
|
dst[0] = MAX(0, MIN(255, r)); |
|
|
dst[1] = MAX(0, MIN(255, g)); |
|
|
dst[2] = MAX(0, MIN(255, b)); |
|
|
dst[3] = 0; |
|
|
|
|
|
y_src++; |
|
|
rgb_y = RGB_Y_tab[*y_src]; |
|
|
b = (rgb_y + b_u) >> SCALEBITS_OUT; |
|
|
g = (rgb_y - g_uv) >> SCALEBITS_OUT; |
|
|
r = (rgb_y + r_v) >> SCALEBITS_OUT; |
|
|
dst[4] = MAX(0, MIN(255, r)); |
|
|
dst[5] = MAX(0, MIN(255, g)); |
|
|
dst[6] = MAX(0, MIN(255, b)); |
|
|
dst[7] = 0; |
|
|
y_src++; |
|
|
|
|
|
rgb_y = RGB_Y_tab[*y_src2]; |
|
|
b = (rgb_y + b_u) >> SCALEBITS_OUT; |
|
|
g = (rgb_y - g_uv) >> SCALEBITS_OUT; |
|
|
r = (rgb_y + r_v) >> SCALEBITS_OUT; |
|
|
dst2[0] = MAX(0, MIN(255, r)); |
|
|
dst2[1] = MAX(0, MIN(255, g)); |
|
|
dst2[2] = MAX(0, MIN(255, b)); |
|
|
dst2[3] = 0; |
|
|
y_src2++; |
|
|
|
|
|
rgb_y = RGB_Y_tab[*y_src2]; |
|
|
b = (rgb_y + b_u) >> SCALEBITS_OUT; |
|
|
g = (rgb_y - g_uv) >> SCALEBITS_OUT; |
|
|
r = (rgb_y + r_v) >> SCALEBITS_OUT; |
|
|
dst2[4] = MAX(0, MIN(255, r)); |
|
|
dst2[5] = MAX(0, MIN(255, g)); |
|
|
dst2[6] = MAX(0, MIN(255, b)); |
|
|
dst2[7] = 0; |
|
|
y_src2++; |
|
|
|
|
|
dst += 8; |
|
|
dst2 += 8; |
|
|
} |
|
|
|
|
|
dst += dst_dif; |
|
|
dst2 += dst_dif; |
|
|
|
|
|
y_src += y_dif; |
|
|
y_src2 += y_dif; |
|
|
|
|
|
u_src += uv_stride; |
|
|
v_src += uv_stride; |
|
|
} |
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
/* yuv 4:2:0 planar -> yuv planar */ |
|
|
|
|
|
void |
|
|
yv12_to_yuv_c(uint8_t * dst, |
|
|
int dst_stride, |
|
|
uint8_t * y_src, |
|
|
uint8_t * u_src, |
|
|
uint8_t * v_src, |
|
|
int y_stride, |
|
|
int uv_stride, |
|
|
int width, |
|
|
int height) |
|
|
{ |
|
|
uint32_t dst_stride2 = dst_stride >> 1; |
|
|
uint32_t width2 = width >> 1; |
|
|
uint32_t y; |
|
|
|
|
|
if (height < 0) { |
|
|
height = -height; |
|
|
y_src += (height - 1) * y_stride; |
|
|
u_src += (height / 2 - 1) * uv_stride; |
|
|
v_src += (height / 2 - 1) * uv_stride; |
|
|
y_stride = -y_stride; |
|
|
uv_stride = -uv_stride; |
|
| 476 |
} |
} |
| 477 |
|
|
| 478 |
for (y = height; y; y--) { |
for (y = height; y; y--) { |
| 479 |
memcpy(dst, y_src, width); |
memcpy(y_dst, y_src, width); |
| 480 |
dst += dst_stride; |
y_src += y_src_stride; |
| 481 |
y_src += y_stride; |
y_dst += y_dst_stride; |
| 482 |
} |
} |
| 483 |
|
|
| 484 |
for (y = height >> 1; y; y--) { |
for (y = height2; y; y--) { |
| 485 |
memcpy(dst, u_src, width2); |
memcpy(u_dst, u_src, width2); |
| 486 |
dst += dst_stride2; |
u_src += uv_src_stride; |
| 487 |
u_src += uv_stride; |
u_dst += uv_dst_stride; |
| 488 |
} |
} |
| 489 |
|
|
| 490 |
for (y = height >> 1; y; y--) { |
for (y = height2; y; y--) { |
| 491 |
memcpy(dst, v_src, width2); |
memcpy(v_dst, v_src, width2); |
| 492 |
dst += dst_stride2; |
v_src += uv_src_stride; |
| 493 |
v_src += uv_stride; |
v_dst += uv_dst_stride; |
| 494 |
} |
} |
| 495 |
} |
} |
| 496 |
|
|
| 497 |
|
|
| 498 |
|
|
| 499 |
|
/* initialize rgb lookup tables */ |
|
/* yuv 4:2:0 planar -> yuyv (yuv2) packed */ |
|
|
|
|
|
void |
|
|
yv12_to_yuyv_c(uint8_t * dst, |
|
|
int dst_stride, |
|
|
uint8_t * y_src, |
|
|
uint8_t * u_src, |
|
|
uint8_t * v_src, |
|
|
int y_stride, |
|
|
int uv_stride, |
|
|
int width, |
|
|
int height) |
|
|
{ |
|
|
const uint32_t dst_dif = 2 * (dst_stride - width); |
|
|
uint32_t x, y; |
|
|
|
|
|
if (height < 0) { |
|
|
height = -height; |
|
|
y_src += (height - 1) * y_stride; |
|
|
u_src += (height / 2 - 1) * uv_stride; |
|
|
v_src += (height / 2 - 1) * uv_stride; |
|
|
y_stride = -y_stride; |
|
|
uv_stride = -uv_stride; |
|
|
} |
|
|
|
|
|
for (y = 0; y < (uint32_t) height; y++) { |
|
|
for (x = 0; x < (uint32_t) width / 2; x++) { |
|
|
dst[0] = y_src[2 * x]; |
|
|
dst[1] = u_src[x]; |
|
|
dst[2] = y_src[2 * x + 1]; |
|
|
dst[3] = v_src[x]; |
|
|
dst += 4; |
|
|
} |
|
|
dst += dst_dif; |
|
|
y_src += y_stride; |
|
|
if (y & 1) { |
|
|
u_src += uv_stride; |
|
|
v_src += uv_stride; |
|
|
} |
|
|
} |
|
|
} |
|
|
|
|
|
|
|
|
|
|
|
/* yuv 4:2:0 planar -> uyvy packed */ |
|
|
|
|
|
void |
|
|
yv12_to_uyvy_c(uint8_t * dst, |
|
|
int dst_stride, |
|
|
uint8_t * y_src, |
|
|
uint8_t * u_src, |
|
|
uint8_t * v_src, |
|
|
int y_stride, |
|
|
int uv_stride, |
|
|
int width, |
|
|
int height) |
|
|
{ |
|
|
const uint32_t dst_dif = 2 * (dst_stride - width); |
|
|
uint32_t x, y; |
|
|
|
|
|
if (height < 0) { |
|
|
height = -height; |
|
|
y_src += (height - 1) * y_stride; |
|
|
u_src += (height / 2 - 1) * uv_stride; |
|
|
v_src += (height / 2 - 1) * uv_stride; |
|
|
y_stride = -y_stride; |
|
|
uv_stride = -uv_stride; |
|
|
} |
|
|
|
|
|
for (y = 0; y < (uint32_t) height; y++) { |
|
|
for (x = 0; x < (uint32_t) width / 2; x++) { |
|
|
dst[0] = u_src[x]; |
|
|
dst[1] = y_src[2 * x]; |
|
|
dst[2] = v_src[x]; |
|
|
dst[3] = y_src[2 * x + 1]; |
|
|
dst += 4; |
|
|
} |
|
|
dst += dst_dif; |
|
|
y_src += y_stride; |
|
|
if (y & 1) { |
|
|
u_src += uv_stride; |
|
|
v_src += uv_stride; |
|
|
} |
|
|
} |
|
|
} |
|
|
|
|
|
|
|
|
/* user yuv planar -> yuv 4:2:0 planar |
|
|
|
|
|
NOTE: does not flip */ |
|
| 500 |
|
|
| 501 |
void |
void |
| 502 |
user_to_yuv_c(uint8_t * y_out, |
colorspace_init(void) |
|
uint8_t * u_out, |
|
|
uint8_t * v_out, |
|
|
int stride, |
|
|
DEC_PICTURE * picture, |
|
|
int width, |
|
|
int height) |
|
| 503 |
{ |
{ |
| 504 |
uint32_t stride2 = stride >> 1; |
int32_t i; |
|
uint32_t width2 = width >> 1; |
|
|
uint32_t y; |
|
|
uint8_t *src; |
|
|
|
|
|
src = picture->y; |
|
|
for (y = height; y; y--) { |
|
|
memcpy(y_out, src, width); |
|
|
src += picture->stride_y; |
|
|
y_out += stride; |
|
|
} |
|
|
|
|
|
src = picture->u; |
|
|
for (y = height >> 1; y; y--) { |
|
|
memcpy(u_out, src, width2); |
|
|
src += picture->stride_uv; |
|
|
u_out += stride2; |
|
|
} |
|
| 505 |
|
|
| 506 |
src = picture->v; |
for (i = 0; i < 256; i++) { |
| 507 |
for (y = height >> 1; y; y--) { |
RGB_Y_tab[i] = FIX_OUT(RGB_Y_OUT) * (i - Y_ADD_OUT); |
| 508 |
memcpy(v_out, src, width2); |
B_U_tab[i] = FIX_OUT(B_U_OUT) * (i - U_ADD_OUT); |
| 509 |
src += picture->stride_uv; |
G_U_tab[i] = FIX_OUT(G_U_OUT) * (i - U_ADD_OUT); |
| 510 |
v_out += stride2; |
G_V_tab[i] = FIX_OUT(G_V_OUT) * (i - V_ADD_OUT); |
| 511 |
|
R_V_tab[i] = FIX_OUT(R_V_OUT) * (i - V_ADD_OUT); |
| 512 |
} |
} |
| 513 |
} |
} |
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