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/***************************************************************************** |
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* |
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* XVID MPEG-4 VIDEO CODEC |
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* - Colorspace conversion functions - |
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* |
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* Copyright(C) 2001-2003 Peter Ross <pross@xvid.org> |
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* |
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* 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 |
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* the Free Software Foundation ; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY ; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* 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 |
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* |
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* $Id: colorspace.c,v 1.8.2.5 2003-12-20 22:20:54 edgomez Exp $ |
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* |
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****************************************************************************/ |
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|
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#include <string.h> /* memcpy */ |
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|
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#include "../global.h" |
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#include "colorspace.h" |
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|
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/* function pointers */ |
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|
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/* input */ |
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packedFuncPtr rgb555_to_yv12; |
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packedFuncPtr rgb565_to_yv12; |
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packedFuncPtr bgr_to_yv12; |
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packedFuncPtr bgra_to_yv12; |
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packedFuncPtr abgr_to_yv12; |
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packedFuncPtr rgba_to_yv12; |
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packedFuncPtr argb_to_yv12; |
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packedFuncPtr yuv_to_yv12; |
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packedFuncPtr yuyv_to_yv12; |
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packedFuncPtr uyvy_to_yv12; |
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|
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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 argbi_to_yv12; |
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packedFuncPtr yuyvi_to_yv12; |
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packedFuncPtr uyvyi_to_yv12; |
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|
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/* output */ |
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packedFuncPtr yv12_to_rgb555; |
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packedFuncPtr yv12_to_rgb565; |
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packedFuncPtr yv12_to_bgr; |
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packedFuncPtr yv12_to_bgra; |
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packedFuncPtr yv12_to_abgr; |
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packedFuncPtr yv12_to_rgba; |
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packedFuncPtr yv12_to_argb; |
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packedFuncPtr yv12_to_yuv; |
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packedFuncPtr yv12_to_yuyv; |
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packedFuncPtr yv12_to_uyvy; |
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|
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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_argbi; |
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packedFuncPtr yv12_to_yuyvi; |
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packedFuncPtr yv12_to_uyvyi; |
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|
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planarFuncPtr yv12_to_yv12; |
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|
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|
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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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|
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|
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|
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/********** generic colorspace macro **********/ |
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|
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|
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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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|
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|
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|
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/********** colorspace input (xxx_to_yv12) functions **********/ |
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|
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/* rgb -> yuv def's |
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|
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this following constants are "official spec" |
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Video Demystified" (ISBN 1-878707-09-4) |
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|
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rgb<->yuv _is_ lossy, since most programs do the conversion differently |
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|
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SCALEBITS/FIX taken from ffmpeg |
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*/ |
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|
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#define Y_R_IN 0.257 |
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#define Y_G_IN 0.504 |
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#define Y_B_IN 0.098 |
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#define Y_ADD_IN 16 |
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|
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#define U_R_IN 0.148 |
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#define U_G_IN 0.291 |
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#define U_B_IN 0.439 |
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#define U_ADD_IN 128 |
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|
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#define V_R_IN 0.439 |
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#define V_G_IN 0.368 |
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#define V_B_IN 0.071 |
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#define V_ADD_IN 128 |
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|
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#define SCALEBITS_IN 8 |
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#define FIX_IN(x) ((uint16_t) ((x) * (1L<<SCALEBITS_IN) + 0.5)) |
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|
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|
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/* rgb16/rgb16i input */ |
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|
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#define MK_RGB555_B(RGB) ((RGB) << 3) & 0xf8 |
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#define MK_RGB555_G(RGB) ((RGB) >> 2) & 0xf8 |
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#define MK_RGB555_R(RGB) ((RGB) >> 7) & 0xf8 |
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|
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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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#define MK_RGB565_R(RGB) ((RGB) >> 8) & 0xf8 |
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|
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|
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#define READ_RGB16_Y(ROW, UVID, C1,C2,C3,C4) \ |
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rgb = *(uint16_t *) (x_ptr + ((ROW)*x_stride) + 0); \ |
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b##UVID += b = C1##_B(rgb); \ |
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g##UVID += g = C1##_G(rgb); \ |
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r##UVID += r = C1##_R(rgb); \ |
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y_ptr[(ROW)*y_stride+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 *) (x_ptr + ((ROW)*x_stride) + 2); \ |
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b##UVID += b = C1##_B(rgb); \ |
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g##UVID += g = C1##_G(rgb); \ |
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r##UVID += r = C1##_R(rgb); \ |
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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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|
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#define READ_RGB16_UV(UV_ROW,UVID) \ |
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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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FIX_IN(U_B_IN) * b##UVID) >> (SCALEBITS_IN + 2)) + U_ADD_IN; \ |
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v_ptr[(UV_ROW)*uv_stride] = \ |
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(uint8_t) ((FIX_IN(V_R_IN) * r##UVID - FIX_IN(V_G_IN) * g##UVID - \ |
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FIX_IN(V_B_IN) * b##UVID) >> (SCALEBITS_IN + 2)) + V_ADD_IN; |
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|
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#define RGB16_TO_YV12_ROW(SIZE,C1,C2,C3,C4) \ |
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/* nothing */ |
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#define RGB16_TO_YV12(SIZE,C1,C2,C3,C4) \ |
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uint32_t rgb, r, g, b, r0, g0, b0; \ |
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r0 = g0 = b0 = 0; \ |
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READ_RGB16_Y (0, 0, C1,C2,C3,C4) \ |
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READ_RGB16_Y (1, 0, C1,C2,C3,C4) \ |
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READ_RGB16_UV(0, 0) |
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|
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|
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#define RGB16I_TO_YV12_ROW(SIZE,C1,C2,C3,C4) \ |
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/* nothing */ |
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#define RGB16I_TO_YV12(SIZE,C1,C2,C3,C4) \ |
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uint32_t rgb, r, g, b, r0, g0, b0, r1, g1, b1; \ |
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r0 = g0 = b0 = r1 = g1 = b1 = 0; \ |
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READ_RGB16_Y (0, 0, C1,C2,C3,C4) \ |
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READ_RGB16_Y (1, 1, C1,C2,C3,C4) \ |
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READ_RGB16_Y (2, 0, C1,C2,C3,C4) \ |
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READ_RGB16_Y (3, 1, C1,C2,C3,C4) \ |
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READ_RGB16_UV(0, 0) \ |
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READ_RGB16_UV(1, 1) |
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|
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|
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/* rgb/rgbi input */ |
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|
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#define READ_RGB_Y(SIZE, ROW, UVID, C1,C2,C3,C4) \ |
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r##UVID += r = x_ptr[(ROW)*x_stride+(C1)]; \ |
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g##UVID += g = x_ptr[(ROW)*x_stride+(C2)]; \ |
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b##UVID += b = x_ptr[(ROW)*x_stride+(C3)]; \ |
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y_ptr[(ROW)*y_stride+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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r##UVID += r = x_ptr[(ROW)*x_stride+(SIZE)+(C1)]; \ |
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g##UVID += g = x_ptr[(ROW)*x_stride+(SIZE)+(C2)]; \ |
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b##UVID += b = x_ptr[(ROW)*x_stride+(SIZE)+(C3)]; \ |
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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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|
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#define READ_RGB_UV(UV_ROW,UVID) \ |
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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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FIX_IN(U_B_IN) * b##UVID) >> (SCALEBITS_IN + 2)) + U_ADD_IN; \ |
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v_ptr[(UV_ROW)*uv_stride] = \ |
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(uint8_t) ((FIX_IN(V_R_IN) * r##UVID - FIX_IN(V_G_IN) * g##UVID - \ |
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FIX_IN(V_B_IN) * b##UVID) >> (SCALEBITS_IN + 2)) + V_ADD_IN; |
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|
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|
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#define RGB_TO_YV12_ROW(SIZE,C1,C2,C3,C4) \ |
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/* nothing */ |
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#define RGB_TO_YV12(SIZE,C1,C2,C3,C4) \ |
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uint32_t r, g, b, r0, g0, b0; \ |
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r0 = g0 = b0 = 0; \ |
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READ_RGB_Y(SIZE, 0, 0, C1,C2,C3,C4) \ |
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READ_RGB_Y(SIZE, 1, 0, C1,C2,C3,C4) \ |
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READ_RGB_UV( 0, 0) |
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|
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#define RGBI_TO_YV12_ROW(SIZE,C1,C2,C3,C4) \ |
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/* nothing */ |
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#define RGBI_TO_YV12(SIZE,C1,C2,C3,C4) \ |
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uint32_t r, g, b, r0, g0, b0, r1, g1, b1; \ |
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r0 = g0 = b0 = r1 = g1 = b1 = 0; \ |
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READ_RGB_Y(SIZE, 0, 0, C1,C2,C3,C4) \ |
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READ_RGB_Y(SIZE, 1, 1, C1,C2,C3,C4) \ |
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READ_RGB_Y(SIZE, 2, 0, C1,C2,C3,C4) \ |
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READ_RGB_Y(SIZE, 3, 1, C1,C2,C3,C4) \ |
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READ_RGB_UV( 0, 0) \ |
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READ_RGB_UV( 1, 1) |
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|
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|
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/* yuyv/yuyvi input */ |
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|
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#define READ_YUYV_Y(ROW,C1,C2,C3,C4) \ |
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y_ptr[(ROW)*y_stride+0] = x_ptr[(ROW)*x_stride+(C1)]; \ |
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y_ptr[(ROW)*y_stride+1] = x_ptr[(ROW)*x_stride+(C3)]; |
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#define READ_YUYV_UV(UV_ROW,ROW1,ROW2,C1,C2,C3,C4) \ |
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u_ptr[(UV_ROW)*uv_stride] = (x_ptr[(ROW1)*x_stride+(C2)] + x_ptr[(ROW2)*x_stride+(C2)] + 1) / 2; \ |
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v_ptr[(UV_ROW)*uv_stride] = (x_ptr[(ROW1)*x_stride+(C4)] + x_ptr[(ROW2)*x_stride+(C4)] + 1) / 2; |
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|
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#define YUYV_TO_YV12_ROW(SIZE,C1,C2,C3,C4) \ |
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/* nothing */ |
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#define YUYV_TO_YV12(SIZE,C1,C2,C3,C4) \ |
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READ_YUYV_Y (0, C1,C2,C3,C4) \ |
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READ_YUYV_Y (1, C1,C2,C3,C4) \ |
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READ_YUYV_UV(0, 0,1, C1,C2,C3,C4) |
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|
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#define YUYVI_TO_YV12_ROW(SIZE,C1,C2,C3,C4) \ |
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/* nothing */ |
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#define YUYVI_TO_YV12(SIZE,C1,C2,C3,C4) \ |
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READ_YUYV_Y (0, C1,C2,C3,C4) \ |
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READ_YUYV_Y (1, C1,C2,C3,C4) \ |
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READ_YUYV_Y (2, C1,C2,C3,C4) \ |
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READ_YUYV_Y (3, C1,C2,C3,C4) \ |
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READ_YUYV_UV(0, 0,2, C1,C2,C3,C4) \ |
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READ_YUYV_UV(1, 1,3, C1,C2,C3,C4) |
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|
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|
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MAKE_COLORSPACE(rgb555_to_yv12_c, 2,2,2, RGB16_TO_YV12, MK_RGB555, 0,0,0) |
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MAKE_COLORSPACE(rgb565_to_yv12_c, 2,2,2, RGB16_TO_YV12, MK_RGB565, 0,0,0) |
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MAKE_COLORSPACE(bgr_to_yv12_c, 3,2,2, RGB_TO_YV12, 2,1,0, 0) |
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MAKE_COLORSPACE(bgra_to_yv12_c, 4,2,2, RGB_TO_YV12, 2,1,0, 0) |
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MAKE_COLORSPACE(abgr_to_yv12_c, 4,2,2, RGB_TO_YV12, 3,2,1, 0) |
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MAKE_COLORSPACE(rgba_to_yv12_c, 4,2,2, RGB_TO_YV12, 0,1,2, 0) |
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MAKE_COLORSPACE(argb_to_yv12_c, 4,2,2, RGB_TO_YV12, 1,2,3, 0) |
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MAKE_COLORSPACE(yuyv_to_yv12_c, 2,2,2, YUYV_TO_YV12, 0,1,2,3) |
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MAKE_COLORSPACE(uyvy_to_yv12_c, 2,2,2, YUYV_TO_YV12, 1,0,3,2) |
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|
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MAKE_COLORSPACE(rgb555i_to_yv12_c, 2,2,4, RGB16I_TO_YV12, MK_RGB555, 0,0,0) |
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MAKE_COLORSPACE(rgb565i_to_yv12_c, 2,2,4, RGB16I_TO_YV12, MK_RGB565, 0,0,0) |
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MAKE_COLORSPACE(bgri_to_yv12_c, 3,2,4, RGBI_TO_YV12, 2,1,0, 0) |
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MAKE_COLORSPACE(bgrai_to_yv12_c, 4,2,4, RGBI_TO_YV12, 2,1,0, 0) |
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MAKE_COLORSPACE(abgri_to_yv12_c, 4,2,4, RGBI_TO_YV12, 3,2,1, 0) |
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MAKE_COLORSPACE(rgbai_to_yv12_c, 4,2,4, RGBI_TO_YV12, 0,1,2, 0) |
| 305 |
MAKE_COLORSPACE(argbi_to_yv12_c, 4,2,4, RGBI_TO_YV12, 1,2,3, 0) |
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MAKE_COLORSPACE(yuyvi_to_yv12_c, 2,2,4, YUYVI_TO_YV12, 0,1,2,3) |
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MAKE_COLORSPACE(uyvyi_to_yv12_c, 2,2,4, YUYVI_TO_YV12, 1,0,3,2) |
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|
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|
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/********** colorspace output (yv12_to_xxx) functions **********/ |
| 311 |
|
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/* yuv -> rgb def's */ |
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|
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#define RGB_Y_OUT 1.164 |
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#define B_U_OUT 2.018 |
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#define Y_ADD_OUT 16 |
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|
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#define G_U_OUT 0.391 |
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#define G_V_OUT 0.813 |
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#define U_ADD_OUT 128 |
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|
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#define R_V_OUT 1.596 |
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#define V_ADD_OUT 128 |
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|
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#define SCALEBITS_OUT 13 |
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#define FIX_OUT(x) ((uint16_t) ((x) * (1L<<SCALEBITS_OUT) + 0.5)) |
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|
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|
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/* rgb16/rgb16i output */ |
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|
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#define MK_RGB555(R,G,B) \ |
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((MAX(0,MIN(255, R)) << 7) & 0x7c00) | \ |
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((MAX(0,MIN(255, G)) << 2) & 0x03e0) | \ |
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((MAX(0,MIN(255, B)) >> 3) & 0x001f) |
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|
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#define MK_RGB565(R,G,B) \ |
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((MAX(0,MIN(255, R)) << 8) & 0xf800) | \ |
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((MAX(0,MIN(255, G)) << 3) & 0x07e0) | \ |
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((MAX(0,MIN(255, B)) >> 3) & 0x001f) |
| 340 |
|
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#define WRITE_RGB16(ROW,UV_ROW,C1) \ |
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rgb_y = RGB_Y_tab[ y_ptr[y_stride + 0] ]; \ |
| 343 |
b[ROW] = (b[ROW] & 0x7) + ((rgb_y + b_u##UV_ROW) >> SCALEBITS_OUT); \ |
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g[ROW] = (g[ROW] & 0x7) + ((rgb_y - g_uv##UV_ROW) >> SCALEBITS_OUT); \ |
| 345 |
r[ROW] = (r[ROW] & 0x7) + ((rgb_y + r_v##UV_ROW) >> SCALEBITS_OUT); \ |
| 346 |
*(uint16_t *) (x_ptr+((ROW)*x_stride)+0) = C1(r[ROW], g[ROW], b[ROW]); \ |
| 347 |
rgb_y = RGB_Y_tab[ y_ptr[y_stride + 1] ]; \ |
| 348 |
b[ROW] = (b[ROW] & 0x7) + ((rgb_y + b_u##UV_ROW) >> SCALEBITS_OUT); \ |
| 349 |
g[ROW] = (g[ROW] & 0x7) + ((rgb_y - g_uv##UV_ROW) >> SCALEBITS_OUT); \ |
| 350 |
r[ROW] = (r[ROW] & 0x7) + ((rgb_y + r_v##UV_ROW) >> SCALEBITS_OUT); \ |
| 351 |
*(uint16_t *) (x_ptr+((ROW)*x_stride)+2) = C1(r[ROW], g[ROW], b[ROW]); |
| 352 |
|
| 353 |
#define YV12_TO_RGB16_ROW(SIZE,C1,C2,C3,C4) \ |
| 354 |
int r[2], g[2], b[2]; \ |
| 355 |
r[0] = r[1] = g[0] = g[1] = b[0] = b[1] = 0; |
| 356 |
#define YV12_TO_RGB16(SIZE,C1,C2,C3,C4) \ |
| 357 |
int rgb_y; \ |
| 358 |
int b_u0 = B_U_tab[ u_ptr[0] ]; \ |
| 359 |
int g_uv0 = G_U_tab[ u_ptr[0] ] + G_V_tab[ v_ptr[0] ]; \ |
| 360 |
int r_v0 = R_V_tab[ v_ptr[0] ]; \ |
| 361 |
WRITE_RGB16(0, 0, C1) \ |
| 362 |
WRITE_RGB16(1, 0, C1) |
| 363 |
|
| 364 |
#define YV12_TO_RGB16I_ROW(SIZE,C1,C2,C3,C4) \ |
| 365 |
int r[4], g[4], b[4]; \ |
| 366 |
r[0] = r[1] = r[2] = r[3] = 0; \ |
| 367 |
g[0] = g[1] = g[2] = g[3] = 0; \ |
| 368 |
b[0] = b[1] = b[2] = b[3] = 0; |
| 369 |
#define YV12_TO_RGB16I(SIZE,C1,C2,C3,C4) \ |
| 370 |
int rgb_y; \ |
| 371 |
int b_u0 = B_U_tab[ u_ptr[0] ]; \ |
| 372 |
int g_uv0 = G_U_tab[ u_ptr[0] ] + G_V_tab[ v_ptr[0] ]; \ |
| 373 |
int r_v0 = R_V_tab[ v_ptr[0] ]; \ |
| 374 |
int b_u1 = B_U_tab[ u_ptr[uv_stride] ]; \ |
| 375 |
int g_uv1 = G_U_tab[ u_ptr[uv_stride] ] + G_V_tab[ v_ptr[uv_stride] ]; \ |
| 376 |
int r_v1 = R_V_tab[ v_ptr[uv_stride] ]; \ |
| 377 |
WRITE_RGB16(0, 0, C1) \ |
| 378 |
WRITE_RGB16(1, 1, C1) \ |
| 379 |
WRITE_RGB16(2, 0, C1) \ |
| 380 |
WRITE_RGB16(3, 1, C1) \ |
| 381 |
|
| 382 |
|
| 383 |
/* rgb/rgbi output */ |
| 384 |
|
| 385 |
#define WRITE_RGB(SIZE,ROW,UV_ROW,C1,C2,C3,C4) \ |
| 386 |
rgb_y = RGB_Y_tab[ y_ptr[(ROW)*y_stride + 0] ]; \ |
| 387 |
x_ptr[(ROW)*x_stride+(C3)] = MAX(0, MIN(255, (rgb_y + b_u##UV_ROW) >> SCALEBITS_OUT)); \ |
| 388 |
x_ptr[(ROW)*x_stride+(C2)] = MAX(0, MIN(255, (rgb_y - g_uv##UV_ROW) >> SCALEBITS_OUT)); \ |
| 389 |
x_ptr[(ROW)*x_stride+(C1)] = MAX(0, MIN(255, (rgb_y + r_v##UV_ROW) >> SCALEBITS_OUT)); \ |
| 390 |
if ((SIZE)>3) x_ptr[(ROW)*x_stride+(C4)] = 0; \ |
| 391 |
rgb_y = RGB_Y_tab[ y_ptr[(ROW)*y_stride + 1] ]; \ |
| 392 |
x_ptr[(ROW)*x_stride+(SIZE)+(C3)] = MAX(0, MIN(255, (rgb_y + b_u##UV_ROW) >> SCALEBITS_OUT)); \ |
| 393 |
x_ptr[(ROW)*x_stride+(SIZE)+(C2)] = MAX(0, MIN(255, (rgb_y - g_uv##UV_ROW) >> SCALEBITS_OUT)); \ |
| 394 |
x_ptr[(ROW)*x_stride+(SIZE)+(C1)] = MAX(0, MIN(255, (rgb_y + r_v##UV_ROW) >> SCALEBITS_OUT)); \ |
| 395 |
if ((SIZE)>3) x_ptr[(ROW)*x_stride+(SIZE)+(C4)] = 0; |
| 396 |
|
| 397 |
|
| 398 |
#define YV12_TO_RGB_ROW(SIZE,C1,C2,C3,C4) /* nothing */ |
| 399 |
#define YV12_TO_RGB(SIZE,C1,C2,C3,C4) \ |
| 400 |
int rgb_y; \ |
| 401 |
int b_u0 = B_U_tab[ u_ptr[0] ]; \ |
| 402 |
int g_uv0 = G_U_tab[ u_ptr[0] ] + G_V_tab[ v_ptr[0] ]; \ |
| 403 |
int r_v0 = R_V_tab[ v_ptr[0] ]; \ |
| 404 |
WRITE_RGB(SIZE, 0, 0, C1,C2,C3,C4) \ |
| 405 |
WRITE_RGB(SIZE, 1, 0, C1,C2,C3,C4) |
| 406 |
|
| 407 |
#define YV12_TO_RGBI_ROW(SIZE,C1,C2,C3,C4) /* nothing */ |
| 408 |
#define YV12_TO_RGBI(SIZE,C1,C2,C3,C4) \ |
| 409 |
int rgb_y; \ |
| 410 |
int b_u0 = B_U_tab[ u_ptr[0] ]; \ |
| 411 |
int g_uv0 = G_U_tab[ u_ptr[0] ] + G_V_tab[ v_ptr[0] ]; \ |
| 412 |
int r_v0 = R_V_tab[ v_ptr[0] ]; \ |
| 413 |
int b_u1 = B_U_tab[ u_ptr[uv_stride] ]; \ |
| 414 |
int g_uv1 = G_U_tab[ u_ptr[uv_stride] ] + G_V_tab[ v_ptr[uv_stride] ]; \ |
| 415 |
int r_v1 = R_V_tab[ v_ptr[uv_stride] ]; \ |
| 416 |
WRITE_RGB(SIZE, 0, 0, C1,C2,C3,C4) \ |
| 417 |
WRITE_RGB(SIZE, 1, 1, C1,C2,C3,C4) \ |
| 418 |
WRITE_RGB(SIZE, 2, 0, C1,C2,C3,C4) \ |
| 419 |
WRITE_RGB(SIZE, 3, 1, C1,C2,C3,C4) |
| 420 |
|
| 421 |
|
| 422 |
/* yuyv/yuyvi output */ |
| 423 |
|
| 424 |
#define WRITE_YUYV(ROW,UV_ROW,C1,C2,C3,C4) \ |
| 425 |
x_ptr[(ROW)*x_stride+(C1)] = y_ptr[ (ROW)*y_stride +0]; \ |
| 426 |
x_ptr[(ROW)*x_stride+(C2)] = u_ptr[(UV_ROW)*uv_stride+0]; \ |
| 427 |
x_ptr[(ROW)*x_stride+(C3)] = y_ptr[ (ROW)*y_stride +1]; \ |
| 428 |
x_ptr[(ROW)*x_stride+(C4)] = v_ptr[(UV_ROW)*uv_stride+0]; \ |
| 429 |
|
| 430 |
#define YV12_TO_YUYV_ROW(SIZE,C1,C2,C3,C4) /* nothing */ |
| 431 |
#define YV12_TO_YUYV(SIZE,C1,C2,C3,C4) \ |
| 432 |
WRITE_YUYV(0, 0, C1,C2,C3,C4) \ |
| 433 |
WRITE_YUYV(1, 0, C1,C2,C3,C4) |
| 434 |
|
| 435 |
#define YV12_TO_YUYVI_ROW(SIZE,C1,C2,C3,C4) /* nothing */ |
| 436 |
#define YV12_TO_YUYVI(SIZE,C1,C2,C3,C4) \ |
| 437 |
WRITE_YUYV(0, 0, C1,C2,C3,C4) \ |
| 438 |
WRITE_YUYV(1, 1, C1,C2,C3,C4) \ |
| 439 |
WRITE_YUYV(2, 0, C1,C2,C3,C4) \ |
| 440 |
WRITE_YUYV(3, 1, C1,C2,C3,C4) |
| 441 |
|
| 442 |
|
| 443 |
MAKE_COLORSPACE(yv12_to_rgb555_c, 2,2,2, YV12_TO_RGB16, MK_RGB555, 0,0,0) |
| 444 |
MAKE_COLORSPACE(yv12_to_rgb565_c, 2,2,2, YV12_TO_RGB16, MK_RGB565, 0,0,0) |
| 445 |
MAKE_COLORSPACE(yv12_to_bgr_c, 3,2,2, YV12_TO_RGB, 2,1,0, 0) |
| 446 |
MAKE_COLORSPACE(yv12_to_bgra_c, 4,2,2, YV12_TO_RGB, 2,1,0,3) |
| 447 |
MAKE_COLORSPACE(yv12_to_abgr_c, 4,2,2, YV12_TO_RGB, 3,2,1,0) |
| 448 |
MAKE_COLORSPACE(yv12_to_rgba_c, 4,2,2, YV12_TO_RGB, 0,1,2,3) |
| 449 |
MAKE_COLORSPACE(yv12_to_argb_c, 4,2,2, YV12_TO_RGB, 1,2,3,0) |
| 450 |
MAKE_COLORSPACE(yv12_to_yuyv_c, 2,2,2, YV12_TO_YUYV, 0,1,2,3) |
| 451 |
MAKE_COLORSPACE(yv12_to_uyvy_c, 2,2,2, YV12_TO_YUYV, 1,0,3,2) |
| 452 |
|
| 453 |
MAKE_COLORSPACE(yv12_to_rgb555i_c, 2,2,4, YV12_TO_RGB16I, MK_RGB555, 0,0,0) |
| 454 |
MAKE_COLORSPACE(yv12_to_rgb565i_c, 2,2,4, YV12_TO_RGB16I, MK_RGB565, 0,0,0) |
| 455 |
MAKE_COLORSPACE(yv12_to_bgri_c, 3,2,4, YV12_TO_RGBI, 2,1,0, 0) |
| 456 |
MAKE_COLORSPACE(yv12_to_bgrai_c, 4,2,4, YV12_TO_RGBI, 2,1,0,3) |
| 457 |
MAKE_COLORSPACE(yv12_to_abgri_c, 4,2,4, YV12_TO_RGBI, 3,2,1,0) |
| 458 |
MAKE_COLORSPACE(yv12_to_rgbai_c, 4,2,4, YV12_TO_RGBI, 0,1,2,3) |
| 459 |
MAKE_COLORSPACE(yv12_to_argbi_c, 4,2,4, YV12_TO_RGBI, 1,2,3,0) |
| 460 |
MAKE_COLORSPACE(yv12_to_yuyvi_c, 2,2,4, YV12_TO_YUYVI, 0,1,2,3) |
| 461 |
MAKE_COLORSPACE(yv12_to_uyvyi_c, 2,2,4, YV12_TO_YUYVI, 1,0,3,2) |
| 462 |
|
| 463 |
|
| 464 |
|
| 465 |
/* yv12 to yv12 copy function */ |
| 466 |
|
| 467 |
void |
| 468 |
yv12_to_yv12_c(uint8_t * y_dst, uint8_t * u_dst, uint8_t * v_dst, |
| 469 |
int y_dst_stride, int uv_dst_stride, |
| 470 |
uint8_t * y_src, uint8_t * u_src, uint8_t * v_src, |
| 471 |
int y_src_stride, int uv_src_stride, |
| 472 |
int width, int height, int vflip) |
| 473 |
{ |
| 474 |
int width2 = width / 2; |
| 475 |
int height2 = height / 2; |
| 476 |
int y; |
| 477 |
|
| 478 |
if (vflip) { |
| 479 |
y_src += (height - 1) * y_src_stride; |
| 480 |
u_src += (height2 - 1) * uv_src_stride; |
| 481 |
v_src += (height2 - 1) * uv_src_stride; |
| 482 |
y_src_stride = -y_src_stride; |
| 483 |
uv_src_stride = -uv_src_stride; |
| 484 |
} |
| 485 |
|
| 486 |
for (y = height; y; y--) { |
| 487 |
memcpy(y_dst, y_src, width); |
| 488 |
y_src += y_src_stride; |
| 489 |
y_dst += y_dst_stride; |
| 490 |
} |
| 491 |
|
| 492 |
for (y = height2; y; y--) { |
| 493 |
memcpy(u_dst, u_src, width2); |
| 494 |
u_src += uv_src_stride; |
| 495 |
u_dst += uv_dst_stride; |
| 496 |
} |
| 497 |
|
| 498 |
for (y = height2; y; y--) { |
| 499 |
memcpy(v_dst, v_src, width2); |
| 500 |
v_src += uv_src_stride; |
| 501 |
v_dst += uv_dst_stride; |
| 502 |
} |
| 503 |
} |
| 504 |
|
| 505 |
|
| 506 |
|
| 507 |
/* initialize rgb lookup tables */ |
| 508 |
|
| 509 |
void |
| 510 |
colorspace_init(void) |
| 511 |
{ |
| 512 |
int32_t i; |
| 513 |
|
| 514 |
for (i = 0; i < 256; i++) { |
| 515 |
RGB_Y_tab[i] = FIX_OUT(RGB_Y_OUT) * (i - Y_ADD_OUT); |
| 516 |
B_U_tab[i] = FIX_OUT(B_U_OUT) * (i - U_ADD_OUT); |
| 517 |
G_U_tab[i] = FIX_OUT(G_U_OUT) * (i - U_ADD_OUT); |
| 518 |
G_V_tab[i] = FIX_OUT(G_V_OUT) * (i - V_ADD_OUT); |
| 519 |
R_V_tab[i] = FIX_OUT(R_V_OUT) * (i - V_ADD_OUT); |
| 520 |
} |
| 521 |
} |
