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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 conversions |
* - colorspace conversion module - |
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* |
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* Copyright(C) 2002 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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* |
* |
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* You should have received a copy of the GNU General Public License |
* 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 |
* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. |
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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* |
* |
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*************************************************************************/ |
****************************************************************************/ |
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/************************************************************************** |
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* |
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* History: |
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* |
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* 14.04.2002 added user_to_yuv_c() |
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* 30.02.2002 out_yuv dst_stride2 fix |
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* 26.02.2002 rgb555, rgb565 |
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* 24.11.2001 accuracy improvement to yuyv/vyuy conversion |
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* 28.10.2001 total rewrite <pross@cs.rmit.edu.au> |
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* |
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**************************************************************************/ |
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#include <string.h> // memcpy |
#include <string.h> // memcpy |
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// function pointers |
// function pointers |
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/* input */ |
/* input */ |
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packedFuncPtr rgb555_to_yv12; |
color_inputFuncPtr rgb555_to_yv12; |
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packedFuncPtr rgb565_to_yv12; |
color_inputFuncPtr rgb565_to_yv12; |
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packedFuncPtr bgr_to_yv12; |
color_inputFuncPtr rgb24_to_yv12; |
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packedFuncPtr bgra_to_yv12; |
color_inputFuncPtr rgb32_to_yv12; |
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packedFuncPtr abgr_to_yv12; |
color_inputFuncPtr yuv_to_yv12; |
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packedFuncPtr rgba_to_yv12; |
color_inputFuncPtr yuyv_to_yv12; |
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packedFuncPtr yuv_to_yv12; |
color_inputFuncPtr uyvy_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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packedFuncPtr yv12_to_rgb555; |
color_outputFuncPtr yv12_to_rgb555; |
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packedFuncPtr yv12_to_rgb565; |
color_outputFuncPtr yv12_to_rgb565; |
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packedFuncPtr yv12_to_bgr; |
color_outputFuncPtr yv12_to_rgb24; |
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packedFuncPtr yv12_to_bgra; |
color_outputFuncPtr yv12_to_rgb32; |
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packedFuncPtr yv12_to_abgr; |
color_outputFuncPtr yv12_to_yuv; |
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packedFuncPtr yv12_to_rgba; |
color_outputFuncPtr yv12_to_yuyv; |
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packedFuncPtr yv12_to_yuv; |
color_outputFuncPtr yv12_to_uyvy; |
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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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#define MIN(A,B) ((A)<(B)?(A):(B)) |
#define MIN(A,B) ((A)<(B)?(A):(B)) |
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#define MAX(A,B) ((A)>(B)?(A):(B)) |
#define MAX(A,B) ((A)>(B)?(A):(B)) |
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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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/********** colorspace input (xxx_to_yv12) functions **********/ |
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/* rgb -> yuv def's |
/* rgb -> yuv def's |
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this following constants are "official spec" |
this following constants are "official spec" |
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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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/* rgb16/rgb16i input */ |
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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/* 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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/* rgb24 -> yuv 4:2:0 planar |
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NOTE: always flips. |
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*/ |
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void |
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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, |
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uint8_t * src, |
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int width, |
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int height, |
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int stride) |
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{ |
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uint32_t width3 = (width << 1) + width; /* width * 3 */ |
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uint32_t src_dif = (width << 3) + width; /* width3 * 3 */ |
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uint32_t y_dif = (stride << 1) - width; |
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uint32_t uv_dif = (stride - width) >> 1; |
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uint32_t x, y; |
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src += (height - 2) * width3; |
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for (y = height >> 1; y; y--) { |
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for (x = width >> 1; x; x--) { |
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uint32_t r, g, b, r4, g4, b4; |
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b4 = b = src[0]; |
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g4 = g = src[1]; |
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r4 = r = src[2]; |
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y_out[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; |
| 297 |
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b4 += (b = src[3]); |
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g4 += (g = src[4]); |
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r4 += (r = src[5]); |
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y_out[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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b4 += (b = src[width3 + 0]); |
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g4 += (g = src[width3 + 1]); |
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r4 += (r = src[width3 + 2]); |
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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 + |
| 310 |
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FIX_IN(Y_B_IN) * b) >> SCALEBITS_IN) + Y_ADD_IN; |
| 311 |
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b4 += (b = src[width3 + 3]); |
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g4 += (g = src[width3 + 4]); |
| 314 |
|
r4 += (r = src[width3 + 5]); |
| 315 |
|
y_out[1] = |
| 316 |
|
(uint8_t) ((FIX_IN(Y_R_IN) * r + FIX_IN(Y_G_IN) * g + |
| 317 |
|
FIX_IN(Y_B_IN) * b) >> SCALEBITS_IN) + Y_ADD_IN; |
| 318 |
|
|
| 319 |
|
*u_out++ = |
| 320 |
|
(uint8_t) ((-FIX_IN(U_R_IN) * r4 - FIX_IN(U_G_IN) * g4 + |
| 321 |
|
FIX_IN(U_B_IN) * b4) >> (SCALEBITS_IN + 2)) + |
| 322 |
|
U_ADD_IN; |
| 323 |
|
|
| 324 |
|
|
| 325 |
|
*v_out++ = |
| 326 |
|
(uint8_t) ((FIX_IN(V_R_IN) * r4 - FIX_IN(V_G_IN) * g4 - |
| 327 |
|
FIX_IN(V_B_IN) * b4) >> (SCALEBITS_IN + 2)) + |
| 328 |
|
V_ADD_IN; |
| 329 |
|
|
| 330 |
|
|
| 331 |
|
src += 6; |
| 332 |
|
y_out += 2; |
| 333 |
|
} |
| 334 |
|
src -= src_dif; |
| 335 |
|
y_out += y_dif; |
| 336 |
|
u_out += uv_dif; |
| 337 |
|
v_out += uv_dif; |
| 338 |
|
} |
| 339 |
|
} |
| 340 |
|
|
| 341 |
|
|
| 342 |
|
/* rgb32 -> yuv 4:2:0 planar |
| 343 |
|
|
| 344 |
|
NOTE: always flips |
| 345 |
|
*/ |
| 346 |
|
|
| 347 |
|
void |
| 348 |
|
rgb32_to_yv12_c(uint8_t * y_out, |
| 349 |
|
uint8_t * u_out, |
| 350 |
|
uint8_t * v_out, |
| 351 |
|
uint8_t * src, |
| 352 |
|
int width, |
| 353 |
|
int height, |
| 354 |
|
int stride) |
| 355 |
|
{ |
| 356 |
|
uint32_t width4 = (width << 2); /* width * 4 */ |
| 357 |
|
uint32_t src_dif = 3 * width4; |
| 358 |
|
uint32_t y_dif = (stride << 1) - width; |
| 359 |
|
uint32_t uv_dif = (stride - width) >> 1; |
| 360 |
|
uint32_t x, y; |
| 361 |
|
|
| 362 |
|
src += (height - 2) * width4; |
| 363 |
|
|
| 364 |
|
for (y = height >> 1; y; y--) { |
| 365 |
|
for (x = width >> 1; x; x--) { |
| 366 |
|
uint32_t r, g, b, r4, g4, b4; |
| 367 |
|
|
| 368 |
|
b4 = b = src[0]; |
| 369 |
|
g4 = g = src[1]; |
| 370 |
|
r4 = r = src[2]; |
| 371 |
|
y_out[stride + 0] = |
| 372 |
|
(uint8_t) ((FIX_IN(Y_R_IN) * r + FIX_IN(Y_G_IN) * g + |
| 373 |
|
FIX_IN(Y_B_IN) * b) >> SCALEBITS_IN) + Y_ADD_IN; |
| 374 |
|
|
| 375 |
|
b4 += (b = src[4]); |
| 376 |
|
g4 += (g = src[5]); |
| 377 |
|
r4 += (r = src[6]); |
| 378 |
|
y_out[stride + 1] = |
| 379 |
|
(uint8_t) ((FIX_IN(Y_R_IN) * r + FIX_IN(Y_G_IN) * g + |
| 380 |
|
FIX_IN(Y_B_IN) * b) >> SCALEBITS_IN) + Y_ADD_IN; |
| 381 |
|
|
| 382 |
|
b4 += (b = src[width4 + 0]); |
| 383 |
|
g4 += (g = src[width4 + 1]); |
| 384 |
|
r4 += (r = src[width4 + 2]); |
| 385 |
|
|
| 386 |
|
y_out[0] = |
| 387 |
|
(uint8_t) ((FIX_IN(Y_R_IN) * r + FIX_IN(Y_G_IN) * g + |
| 388 |
|
FIX_IN(Y_B_IN) * b) >> SCALEBITS_IN) + Y_ADD_IN; |
| 389 |
|
|
| 390 |
|
b4 += (b = src[width4 + 4]); |
| 391 |
|
g4 += (g = src[width4 + 5]); |
| 392 |
|
r4 += (r = src[width4 + 6]); |
| 393 |
|
y_out[1] = |
| 394 |
|
(uint8_t) ((FIX_IN(Y_R_IN) * r + FIX_IN(Y_G_IN) * g + |
| 395 |
|
FIX_IN(Y_B_IN) * b) >> SCALEBITS_IN) + Y_ADD_IN; |
| 396 |
|
|
| 397 |
|
*u_out++ = |
| 398 |
|
(uint8_t) ((-FIX_IN(U_R_IN) * r4 - FIX_IN(U_G_IN) * g4 + |
| 399 |
|
FIX_IN(U_B_IN) * b4) >> (SCALEBITS_IN + 2)) + |
| 400 |
|
U_ADD_IN; |
| 401 |
|
|
| 402 |
|
*v_out++ = |
| 403 |
|
(uint8_t) ((FIX_IN(V_R_IN) * r4 - FIX_IN(V_G_IN) * g4 - |
| 404 |
|
FIX_IN(V_B_IN) * b4) >> (SCALEBITS_IN + 2)) + |
| 405 |
|
V_ADD_IN; |
| 406 |
|
|
| 407 |
|
src += 8; |
| 408 |
|
y_out += 2; |
| 409 |
|
} |
| 410 |
|
src -= src_dif; |
| 411 |
|
y_out += y_dif; |
| 412 |
|
u_out += uv_dif; |
| 413 |
|
v_out += uv_dif; |
| 414 |
|
} |
| 415 |
|
} |
| 416 |
|
|
| 417 |
|
/* yuv planar -> yuv 4:2:0 planar |
| 418 |
|
|
| 419 |
|
NOTE: does not flip */ |
| 420 |
|
|
| 421 |
|
void |
| 422 |
|
yuv_to_yv12_c(uint8_t * y_out, |
| 423 |
|
uint8_t * u_out, |
| 424 |
|
uint8_t * v_out, |
| 425 |
|
uint8_t * src, |
| 426 |
|
int width, |
| 427 |
|
int height, |
| 428 |
|
int stride) |
| 429 |
|
{ |
| 430 |
|
uint32_t stride2 = stride >> 1; |
| 431 |
|
uint32_t width2 = width >> 1; |
| 432 |
|
uint32_t y; |
| 433 |
|
|
| 434 |
|
for (y = height; y; y--) { |
| 435 |
|
memcpy(y_out, src, width); |
| 436 |
|
src += width; |
| 437 |
|
y_out += stride; |
| 438 |
|
} |
| 439 |
|
|
| 440 |
|
for (y = height >> 1; y; y--) { |
| 441 |
|
memcpy(u_out, src, width2); |
| 442 |
|
src += width2; |
| 443 |
|
u_out += stride2; |
| 444 |
|
} |
| 445 |
|
|
| 446 |
|
for (y = height >> 1; y; y--) { |
| 447 |
|
memcpy(v_out, src, width2); |
| 448 |
|
src += width2; |
| 449 |
|
v_out += stride2; |
| 450 |
|
} |
| 451 |
|
} |
| 452 |
|
|
| 453 |
|
|
| 454 |
|
|
| 455 |
|
/* yuyv (yuv2) packed -> yuv 4:2:0 planar |
| 456 |
|
|
| 457 |
|
NOTE: does not flip */ |
| 458 |
|
|
| 459 |
|
void |
| 460 |
|
yuyv_to_yv12_c(uint8_t * y_out, |
| 461 |
|
uint8_t * u_out, |
| 462 |
|
uint8_t * v_out, |
| 463 |
|
uint8_t * src, |
| 464 |
|
int width, |
| 465 |
|
int height, |
| 466 |
|
int stride) |
| 467 |
|
{ |
| 468 |
|
uint32_t width2 = width + width; |
| 469 |
|
uint32_t y_dif = stride - width; |
| 470 |
|
uint32_t uv_dif = y_dif >> 1; |
| 471 |
|
uint32_t x, y; |
| 472 |
|
|
| 473 |
|
for (y = height >> 1; y; y--) { |
| 474 |
|
|
| 475 |
|
for (x = width >> 1; x; x--) { |
| 476 |
|
*y_out++ = *src++; |
| 477 |
|
//*u_out++ = *src++; |
| 478 |
|
*u_out++ = (*(src + width2) + *src) >> 1; |
| 479 |
|
src++; |
| 480 |
|
*y_out++ = *src++; |
| 481 |
|
//*v_out++ = *src++; |
| 482 |
|
*v_out++ = (*(src + width2) + *src) >> 1; |
| 483 |
|
src++; |
| 484 |
|
|
| 485 |
|
} |
| 486 |
|
|
| 487 |
|
y_out += y_dif; |
| 488 |
|
u_out += uv_dif; |
| 489 |
|
v_out += uv_dif; |
| 490 |
|
|
| 491 |
|
for (x = width >> 1; x; x--) { |
| 492 |
|
*y_out++ = *src++; |
| 493 |
|
src++; |
| 494 |
|
*y_out++ = *src++; |
| 495 |
|
src++; |
| 496 |
|
} |
| 497 |
|
|
| 498 |
|
y_out += y_dif; |
| 499 |
|
|
| 500 |
|
} |
| 501 |
|
|
| 502 |
|
} |
| 503 |
|
|
| 504 |
|
|
| 505 |
|
|
| 506 |
|
/* uyvy packed -> yuv 4:2:0 planar |
| 507 |
|
|
| 508 |
|
NOTE: does not flip */ |
| 509 |
|
|
| 510 |
|
|
| 511 |
#define MK_RGB555_B(RGB) ((RGB) << 3) & 0xf8 |
void |
| 512 |
#define MK_RGB555_G(RGB) ((RGB) >> 2) & 0xf8 |
uyvy_to_yv12_c(uint8_t * y_out, |
| 513 |
#define MK_RGB555_R(RGB) ((RGB) >> 7) & 0xf8 |
uint8_t * u_out, |
| 514 |
|
uint8_t * v_out, |
| 515 |
#define MK_RGB565_B(RGB) ((RGB) << 3) & 0xf8 |
uint8_t * src, |
| 516 |
#define MK_RGB565_G(RGB) ((RGB) >> 3) & 0xfc |
int width, |
| 517 |
#define MK_RGB565_R(RGB) ((RGB) >> 8) & 0xf8 |
int height, |
| 518 |
|
int stride) |
| 519 |
|
{ |
| 520 |
#define READ_RGB16_Y(ROW, UVID, C1,C2,C3,C4) \ |
uint32_t width2 = width + width; |
| 521 |
rgb = *(uint16_t *) (x_ptr + ((ROW)*x_stride) + 0); \ |
uint32_t y_dif = stride - width; |
| 522 |
b##UVID += b = C1##_B(rgb); \ |
uint32_t uv_dif = y_dif >> 1; |
| 523 |
g##UVID += g = C1##_G(rgb); \ |
uint32_t x, y; |
| 524 |
r##UVID += r = C1##_R(rgb); \ |
|
| 525 |
y_ptr[(ROW)*y_stride+0] = \ |
for (y = height >> 1; y; y--) { |
| 526 |
(uint8_t) ((FIX_IN(Y_R_IN) * r + FIX_IN(Y_G_IN) * g + \ |
|
| 527 |
FIX_IN(Y_B_IN) * b) >> SCALEBITS_IN) + Y_ADD_IN; \ |
for (x = width >> 1; x; x--) { |
| 528 |
rgb = *(uint16_t *) (x_ptr + ((ROW)*x_stride) + 2); \ |
*u_out++ = *src++; |
| 529 |
b##UVID += b = C1##_B(rgb); \ |
// *u_out++ = (*(src+width2) + *src++) >> 1; |
| 530 |
g##UVID += g = C1##_G(rgb); \ |
*y_out++ = *src++; |
| 531 |
r##UVID += r = C1##_R(rgb); \ |
//*v_out++ = *src++; |
| 532 |
y_ptr[(ROW)*y_stride+1] = \ |
*v_out++ = (*(src + width2) + *src) >> 1; |
| 533 |
(uint8_t) ((FIX_IN(Y_R_IN) * r + FIX_IN(Y_G_IN) * g + \ |
src++; |
| 534 |
FIX_IN(Y_B_IN) * b) >> SCALEBITS_IN) + Y_ADD_IN; |
*y_out++ = *src++; |
| 535 |
|
} |
|
#define READ_RGB16_UV(UV_ROW,UVID) \ |
|
|
u_ptr[(UV_ROW)*uv_stride] = \ |
|
|
(uint8_t) ((-FIX_IN(U_R_IN) * r##UVID - FIX_IN(U_G_IN) * g##UVID + \ |
|
|
FIX_IN(U_B_IN) * b##UVID) >> (SCALEBITS_IN + 2)) + U_ADD_IN; \ |
|
|
v_ptr[(UV_ROW)*uv_stride] = \ |
|
|
(uint8_t) ((FIX_IN(V_R_IN) * r##UVID - FIX_IN(V_G_IN) * g##UVID - \ |
|
|
FIX_IN(V_B_IN) * b##UVID) >> (SCALEBITS_IN + 2)) + V_ADD_IN; |
|
|
|
|
|
#define RGB16_TO_YV12_ROW(SIZE,C1,C2,C3,C4) \ |
|
|
/* nothing */ |
|
|
#define RGB16_TO_YV12(SIZE,C1,C2,C3,C4) \ |
|
|
uint32_t rgb, r, g, b, r0, g0, b0; \ |
|
|
r0 = g0 = b0 = 0; \ |
|
|
READ_RGB16_Y (0, 0, C1,C2,C3,C4) \ |
|
|
READ_RGB16_Y (1, 0, C1,C2,C3,C4) \ |
|
|
READ_RGB16_UV(0, 0) |
|
|
|
|
|
|
|
|
#define RGB16I_TO_YV12_ROW(SIZE,C1,C2,C3,C4) \ |
|
|
/* nothing */ |
|
|
#define RGB16I_TO_YV12(SIZE,C1,C2,C3,C4) \ |
|
|
uint32_t rgb, r, g, b, r0, g0, b0, r1, g1, b1; \ |
|
|
r0 = g0 = b0 = r1 = g1 = b1 = 0; \ |
|
|
READ_RGB16_Y (0, 0, C1,C2,C3,C4) \ |
|
|
READ_RGB16_Y (1, 1, C1,C2,C3,C4) \ |
|
|
READ_RGB16_Y (2, 0, C1,C2,C3,C4) \ |
|
|
READ_RGB16_Y (3, 1, C1,C2,C3,C4) \ |
|
|
READ_RGB16_UV(0, 0) \ |
|
|
READ_RGB16_UV(1, 1) |
|
|
|
|
|
|
|
|
/* rgb/rgbi input */ |
|
|
|
|
|
#define READ_RGB_Y(SIZE, ROW, UVID, C1,C2,C3,C4) \ |
|
|
r##UVID += r = x_ptr[(ROW)*x_stride+(C1)]; \ |
|
|
g##UVID += g = x_ptr[(ROW)*x_stride+(C2)]; \ |
|
|
b##UVID += b = x_ptr[(ROW)*x_stride+(C3)]; \ |
|
|
y_ptr[(ROW)*y_stride+0] = \ |
|
|
(uint8_t) ((FIX_IN(Y_R_IN) * r + FIX_IN(Y_G_IN) * g + \ |
|
|
FIX_IN(Y_B_IN) * b) >> SCALEBITS_IN) + Y_ADD_IN; \ |
|
|
r##UVID += r = x_ptr[(ROW)*x_stride+(SIZE)+(C1)]; \ |
|
|
g##UVID += g = x_ptr[(ROW)*x_stride+(SIZE)+(C2)]; \ |
|
|
b##UVID += b = x_ptr[(ROW)*x_stride+(SIZE)+(C3)]; \ |
|
|
y_ptr[(ROW)*y_stride+1] = \ |
|
|
(uint8_t) ((FIX_IN(Y_R_IN) * r + FIX_IN(Y_G_IN) * g + \ |
|
|
FIX_IN(Y_B_IN) * b) >> SCALEBITS_IN) + Y_ADD_IN; |
|
|
|
|
|
#define READ_RGB_UV(UV_ROW,UVID) \ |
|
|
u_ptr[(UV_ROW)*uv_stride] = \ |
|
|
(uint8_t) ((-FIX_IN(U_R_IN) * r##UVID - FIX_IN(U_G_IN) * g##UVID + \ |
|
|
FIX_IN(U_B_IN) * b##UVID) >> (SCALEBITS_IN + 2)) + U_ADD_IN; \ |
|
|
v_ptr[(UV_ROW)*uv_stride] = \ |
|
|
(uint8_t) ((FIX_IN(V_R_IN) * r##UVID - FIX_IN(V_G_IN) * g##UVID - \ |
|
|
FIX_IN(V_B_IN) * b##UVID) >> (SCALEBITS_IN + 2)) + V_ADD_IN; |
|
|
|
|
|
|
|
|
#define RGB_TO_YV12_ROW(SIZE,C1,C2,C3,C4) \ |
|
|
/* nothing */ |
|
|
#define RGB_TO_YV12(SIZE,C1,C2,C3,C4) \ |
|
|
uint32_t r, g, b, r0, g0, b0; \ |
|
|
r0 = g0 = b0 = 0; \ |
|
|
READ_RGB_Y(SIZE, 0, 0, C1,C2,C3,C4) \ |
|
|
READ_RGB_Y(SIZE, 1, 0, C1,C2,C3,C4) \ |
|
|
READ_RGB_UV( 0, 0) |
|
|
|
|
|
#define RGBI_TO_YV12_ROW(SIZE,C1,C2,C3,C4) \ |
|
|
/* nothing */ |
|
|
#define RGBI_TO_YV12(SIZE,C1,C2,C3,C4) \ |
|
|
uint32_t r, g, b, r0, g0, b0, r1, g1, b1; \ |
|
|
r0 = g0 = b0 = r1 = g1 = b1 = 0; \ |
|
|
READ_RGB_Y(SIZE, 0, 0, C1,C2,C3,C4) \ |
|
|
READ_RGB_Y(SIZE, 1, 1, C1,C2,C3,C4) \ |
|
|
READ_RGB_Y(SIZE, 2, 0, C1,C2,C3,C4) \ |
|
|
READ_RGB_Y(SIZE, 3, 1, C1,C2,C3,C4) \ |
|
|
READ_RGB_UV( 0, 0) \ |
|
|
READ_RGB_UV( 1, 1) |
|
|
|
|
|
|
|
|
/* yuyv/yuyvi input */ |
|
|
|
|
|
#define READ_YUYV_Y(ROW,C1,C2,C3,C4) \ |
|
|
y_ptr[(ROW)*y_stride+0] = x_ptr[(ROW)*x_stride+(C1)]; \ |
|
|
y_ptr[(ROW)*y_stride+1] = x_ptr[(ROW)*x_stride+(C3)]; |
|
|
#define READ_YUYV_UV(UV_ROW,ROW1,ROW2,C1,C2,C3,C4) \ |
|
|
u_ptr[(UV_ROW)*uv_stride] = (x_ptr[(ROW1)*x_stride+(C2)] + x_ptr[(ROW2)*x_stride+(C2)] + 1) / 2; \ |
|
|
v_ptr[(UV_ROW)*uv_stride] = (x_ptr[(ROW1)*x_stride+(C4)] + x_ptr[(ROW2)*x_stride+(C4)] + 1) / 2; |
|
|
|
|
|
#define YUYV_TO_YV12_ROW(SIZE,C1,C2,C3,C4) \ |
|
|
/* nothing */ |
|
|
#define YUYV_TO_YV12(SIZE,C1,C2,C3,C4) \ |
|
|
READ_YUYV_Y (0, C1,C2,C3,C4) \ |
|
|
READ_YUYV_Y (1, C1,C2,C3,C4) \ |
|
|
READ_YUYV_UV(0, 0,1, C1,C2,C3,C4) |
|
|
|
|
|
#define YUYVI_TO_YV12_ROW(SIZE,C1,C2,C3,C4) \ |
|
|
/* nothing */ |
|
|
#define YUYVI_TO_YV12(SIZE,C1,C2,C3,C4) \ |
|
|
READ_YUYV_Y (0, C1,C2,C3,C4) \ |
|
|
READ_YUYV_Y (1, C1,C2,C3,C4) \ |
|
|
READ_YUYV_Y (2, C1,C2,C3,C4) \ |
|
|
READ_YUYV_Y (3, C1,C2,C3,C4) \ |
|
|
READ_YUYV_UV(0, 0,2, C1,C2,C3,C4) \ |
|
|
READ_YUYV_UV(1, 1,3, C1,C2,C3,C4) |
|
|
|
|
|
|
|
|
MAKE_COLORSPACE(rgb555_to_yv12_c, 2,2,2, RGB16_TO_YV12, MK_RGB555, 0,0,0) |
|
|
MAKE_COLORSPACE(rgb565_to_yv12_c, 2,2,2, RGB16_TO_YV12, MK_RGB565, 0,0,0) |
|
|
MAKE_COLORSPACE(bgr_to_yv12_c, 3,2,2, RGB_TO_YV12, 2,1,0, 0) |
|
|
MAKE_COLORSPACE(bgra_to_yv12_c, 4,2,2, RGB_TO_YV12, 2,1,0, 0) |
|
|
MAKE_COLORSPACE(abgr_to_yv12_c, 4,2,2, RGB_TO_YV12, 3,2,1, 0) |
|
|
MAKE_COLORSPACE(rgba_to_yv12_c, 4,2,2, RGB_TO_YV12, 0,1,2, 0) |
|
|
MAKE_COLORSPACE(yuyv_to_yv12_c, 2,2,2, YUYV_TO_YV12, 0,1,2,3) |
|
|
MAKE_COLORSPACE(uyvy_to_yv12_c, 2,2,2, YUYV_TO_YV12, 1,0,3,2) |
|
|
|
|
|
MAKE_COLORSPACE(rgb555i_to_yv12_c, 2,2,4, RGB16I_TO_YV12, MK_RGB555, 0,0,0) |
|
|
MAKE_COLORSPACE(rgb565i_to_yv12_c, 2,2,4, RGB16I_TO_YV12, MK_RGB565, 0,0,0) |
|
|
MAKE_COLORSPACE(bgri_to_yv12_c, 3,2,4, RGBI_TO_YV12, 2,1,0, 0) |
|
|
MAKE_COLORSPACE(bgrai_to_yv12_c, 4,2,4, RGBI_TO_YV12, 2,1,0, 0) |
|
|
MAKE_COLORSPACE(abgri_to_yv12_c, 4,2,4, RGBI_TO_YV12, 3,2,1, 0) |
|
|
MAKE_COLORSPACE(rgbai_to_yv12_c, 4,2,4, RGBI_TO_YV12, 0,1,2, 0) |
|
|
MAKE_COLORSPACE(yuyvi_to_yv12_c, 2,2,4, YUYVI_TO_YV12, 0,1,2,3) |
|
|
MAKE_COLORSPACE(uyvyi_to_yv12_c, 2,2,4, YUYVI_TO_YV12, 1,0,3,2) |
|
| 536 |
|
|
| 537 |
|
y_out += y_dif; |
| 538 |
|
u_out += uv_dif;; |
| 539 |
|
v_out += uv_dif;; |
| 540 |
|
|
| 541 |
|
for (x = width >> 1; x; x--) { |
| 542 |
|
src++; |
| 543 |
|
*y_out++ = *src++; |
| 544 |
|
src++; |
| 545 |
|
*y_out++ = *src++; |
| 546 |
|
} |
| 547 |
|
|
| 548 |
|
y_out += y_dif; |
| 549 |
|
} |
| 550 |
|
} |
| 551 |
|
|
|
/********** colorspace output (yv12_to_xxx) functions **********/ |
|
| 552 |
|
|
| 553 |
/* yuv -> rgb def's */ |
/* yuv -> rgb def's */ |
| 554 |
|
|
| 563 |
#define R_V_OUT 1.596 |
#define R_V_OUT 1.596 |
| 564 |
#define V_ADD_OUT 128 |
#define V_ADD_OUT 128 |
| 565 |
|
|
| 566 |
|
|
| 567 |
#define SCALEBITS_OUT 13 |
#define SCALEBITS_OUT 13 |
| 568 |
#define FIX_OUT(x) ((uint16_t) ((x) * (1L<<SCALEBITS_OUT) + 0.5)) |
#define FIX_OUT(x) ((uint16_t) ((x) * (1L<<SCALEBITS_OUT) + 0.5)) |
| 569 |
|
|
| 570 |
|
|
| 571 |
/* rgb16/rgb16i output */ |
/* initialize rgb lookup tables */ |
| 572 |
|
|
| 573 |
|
void |
| 574 |
|
colorspace_init(void) |
| 575 |
|
{ |
| 576 |
|
int32_t i; |
| 577 |
|
|
| 578 |
|
for (i = 0; i < 256; i++) { |
| 579 |
|
RGB_Y_tab[i] = FIX_OUT(RGB_Y_OUT) * (i - Y_ADD_OUT); |
| 580 |
|
B_U_tab[i] = FIX_OUT(B_U_OUT) * (i - U_ADD_OUT); |
| 581 |
|
G_U_tab[i] = FIX_OUT(G_U_OUT) * (i - U_ADD_OUT); |
| 582 |
|
G_V_tab[i] = FIX_OUT(G_V_OUT) * (i - V_ADD_OUT); |
| 583 |
|
R_V_tab[i] = FIX_OUT(R_V_OUT) * (i - V_ADD_OUT); |
| 584 |
|
} |
| 585 |
|
} |
| 586 |
|
|
| 587 |
|
/* yuv 4:2:0 planar -> rgb555 + very simple error diffusion |
| 588 |
|
*/ |
| 589 |
|
|
| 590 |
#define MK_RGB555(R,G,B) \ |
#define MK_RGB555(R,G,B) ((MAX(0,MIN(255, R)) << 7) & 0x7c00) | \ |
|
((MAX(0,MIN(255, R)) << 7) & 0x7c00) | \ |
|
| 591 |
((MAX(0,MIN(255, G)) << 2) & 0x03e0) | \ |
((MAX(0,MIN(255, G)) << 2) & 0x03e0) | \ |
| 592 |
((MAX(0,MIN(255, B)) >> 3) & 0x001f) |
((MAX(0,MIN(255, B)) >> 3) & 0x001f) |
| 593 |
|
|
| 594 |
#define MK_RGB565(R,G,B) \ |
|
| 595 |
((MAX(0,MIN(255, R)) << 8) & 0xf800) | \ |
void |
| 596 |
|
yv12_to_rgb555_c(uint8_t * dst, |
| 597 |
|
int dst_stride, |
| 598 |
|
uint8_t * y_src, |
| 599 |
|
uint8_t * u_src, |
| 600 |
|
uint8_t * v_src, |
| 601 |
|
int y_stride, |
| 602 |
|
int uv_stride, |
| 603 |
|
int width, |
| 604 |
|
int height) |
| 605 |
|
{ |
| 606 |
|
const uint32_t dst_dif = 4 * dst_stride - 2 * width; |
| 607 |
|
int32_t y_dif = 2 * y_stride - width; |
| 608 |
|
|
| 609 |
|
uint8_t *dst2 = dst + 2 * dst_stride; |
| 610 |
|
uint8_t *y_src2 = y_src + y_stride; |
| 611 |
|
uint32_t x, y; |
| 612 |
|
|
| 613 |
|
if (height < 0) { |
| 614 |
|
height = -height; |
| 615 |
|
y_src += (height - 1) * y_stride; |
| 616 |
|
y_src2 = y_src - y_stride; |
| 617 |
|
u_src += (height / 2 - 1) * uv_stride; |
| 618 |
|
v_src += (height / 2 - 1) * uv_stride; |
| 619 |
|
y_dif = -width - 2 * y_stride; |
| 620 |
|
uv_stride = -uv_stride; |
| 621 |
|
} |
| 622 |
|
|
| 623 |
|
for (y = height / 2; y; y--) { |
| 624 |
|
int r, g, b; |
| 625 |
|
int r2, g2, b2; |
| 626 |
|
|
| 627 |
|
r = g = b = 0; |
| 628 |
|
r2 = g2 = b2 = 0; |
| 629 |
|
|
| 630 |
|
// process one 2x2 block per iteration |
| 631 |
|
for (x = 0; x < (uint32_t) width / 2; x++) { |
| 632 |
|
int u, v; |
| 633 |
|
int b_u, g_uv, r_v, rgb_y; |
| 634 |
|
|
| 635 |
|
u = u_src[x]; |
| 636 |
|
v = v_src[x]; |
| 637 |
|
|
| 638 |
|
b_u = B_U_tab[u]; |
| 639 |
|
g_uv = G_U_tab[u] + G_V_tab[v]; |
| 640 |
|
r_v = R_V_tab[v]; |
| 641 |
|
|
| 642 |
|
rgb_y = RGB_Y_tab[*y_src]; |
| 643 |
|
b = (b & 0x7) + ((rgb_y + b_u) >> SCALEBITS_OUT); |
| 644 |
|
g = (g & 0x7) + ((rgb_y - g_uv) >> SCALEBITS_OUT); |
| 645 |
|
r = (r & 0x7) + ((rgb_y + r_v) >> SCALEBITS_OUT); |
| 646 |
|
*(uint16_t *) dst = MK_RGB555(r, g, b); |
| 647 |
|
|
| 648 |
|
y_src++; |
| 649 |
|
rgb_y = RGB_Y_tab[*y_src]; |
| 650 |
|
b = (b & 0x7) + ((rgb_y + b_u) >> SCALEBITS_OUT); |
| 651 |
|
g = (g & 0x7) + ((rgb_y - g_uv) >> SCALEBITS_OUT); |
| 652 |
|
r = (r & 0x7) + ((rgb_y + r_v) >> SCALEBITS_OUT); |
| 653 |
|
*(uint16_t *) (dst + 2) = MK_RGB555(r, g, b); |
| 654 |
|
y_src++; |
| 655 |
|
|
| 656 |
|
rgb_y = RGB_Y_tab[*y_src2]; |
| 657 |
|
b2 = (b2 & 0x7) + ((rgb_y + b_u) >> SCALEBITS_OUT); |
| 658 |
|
g2 = (g2 & 0x7) + ((rgb_y - g_uv) >> SCALEBITS_OUT); |
| 659 |
|
r2 = (r2 & 0x7) + ((rgb_y + r_v) >> SCALEBITS_OUT); |
| 660 |
|
*(uint16_t *) (dst2) = MK_RGB555(r2, g2, b2); |
| 661 |
|
y_src2++; |
| 662 |
|
|
| 663 |
|
rgb_y = RGB_Y_tab[*y_src2]; |
| 664 |
|
b2 = (b2 & 0x7) + ((rgb_y + b_u) >> SCALEBITS_OUT); |
| 665 |
|
g2 = (g2 & 0x7) + ((rgb_y - g_uv) >> SCALEBITS_OUT); |
| 666 |
|
r2 = (r2 & 0x7) + ((rgb_y + r_v) >> SCALEBITS_OUT); |
| 667 |
|
*(uint16_t *) (dst2 + 2) = MK_RGB555(r2, g2, b2); |
| 668 |
|
y_src2++; |
| 669 |
|
|
| 670 |
|
dst += 4; |
| 671 |
|
dst2 += 4; |
| 672 |
|
} |
| 673 |
|
|
| 674 |
|
dst += dst_dif; |
| 675 |
|
dst2 += dst_dif; |
| 676 |
|
|
| 677 |
|
y_src += y_dif; |
| 678 |
|
y_src2 += y_dif; |
| 679 |
|
|
| 680 |
|
u_src += uv_stride; |
| 681 |
|
v_src += uv_stride; |
| 682 |
|
} |
| 683 |
|
} |
| 684 |
|
|
| 685 |
|
|
| 686 |
|
/* yuv 4:2:0 planar -> rgb565 + very simple error diffusion |
| 687 |
|
NOTE: identical to rgb555 except for shift/mask */ |
| 688 |
|
|
| 689 |
|
|
| 690 |
|
#define MK_RGB565(R,G,B) ((MAX(0,MIN(255, R)) << 8) & 0xf800) | \ |
| 691 |
((MAX(0,MIN(255, G)) << 3) & 0x07e0) | \ |
((MAX(0,MIN(255, G)) << 3) & 0x07e0) | \ |
| 692 |
((MAX(0,MIN(255, B)) >> 3) & 0x001f) |
((MAX(0,MIN(255, B)) >> 3) & 0x001f) |
| 693 |
|
|
| 694 |
#define WRITE_RGB16(ROW,UV_ROW,C1) \ |
void |
| 695 |
rgb_y = RGB_Y_tab[ y_ptr[y_stride + 0] ]; \ |
yv12_to_rgb565_c(uint8_t * dst, |
| 696 |
b[ROW] = (b[ROW] & 0x7) + ((rgb_y + b_u##UV_ROW) >> SCALEBITS_OUT); \ |
int dst_stride, |
| 697 |
g[ROW] = (g[ROW] & 0x7) + ((rgb_y - g_uv##UV_ROW) >> SCALEBITS_OUT); \ |
uint8_t * y_src, |
| 698 |
r[ROW] = (r[ROW] & 0x7) + ((rgb_y + r_v##UV_ROW) >> SCALEBITS_OUT); \ |
uint8_t * u_src, |
| 699 |
*(uint16_t *) (x_ptr+((ROW)*x_stride)+0) = C1(r[ROW], g[ROW], b[ROW]); \ |
uint8_t * v_src, |
| 700 |
rgb_y = RGB_Y_tab[ y_ptr[y_stride + 1] ]; \ |
int y_stride, |
| 701 |
b[ROW] = (b[ROW] & 0x7) + ((rgb_y + b_u##UV_ROW) >> SCALEBITS_OUT); \ |
int uv_stride, |
| 702 |
g[ROW] = (g[ROW] & 0x7) + ((rgb_y - g_uv##UV_ROW) >> SCALEBITS_OUT); \ |
int width, |
| 703 |
r[ROW] = (r[ROW] & 0x7) + ((rgb_y + r_v##UV_ROW) >> SCALEBITS_OUT); \ |
int height) |
| 704 |
*(uint16_t *) (x_ptr+((ROW)*x_stride)+2) = C1(r[ROW], g[ROW], b[ROW]); |
{ |
| 705 |
|
const uint32_t dst_dif = 4 * dst_stride - 2 * width; |
| 706 |
#define YV12_TO_RGB16_ROW(SIZE,C1,C2,C3,C4) \ |
int32_t y_dif = 2 * y_stride - width; |
| 707 |
int r[2], g[2], b[2]; \ |
|
| 708 |
r[0] = r[1] = g[0] = g[1] = b[0] = b[1] = 0; |
uint8_t *dst2 = dst + 2 * dst_stride; |
| 709 |
#define YV12_TO_RGB16(SIZE,C1,C2,C3,C4) \ |
uint8_t *y_src2 = y_src + y_stride; |
| 710 |
int rgb_y; \ |
uint32_t x, y; |
| 711 |
int b_u0 = B_U_tab[ u_ptr[0] ]; \ |
|
| 712 |
int g_uv0 = G_U_tab[ u_ptr[0] ] + G_V_tab[ v_ptr[0] ]; \ |
if (height < 0) { // flip image? |
| 713 |
int r_v0 = R_V_tab[ v_ptr[0] ]; \ |
height = -height; |
| 714 |
WRITE_RGB16(0, 0, C1) \ |
y_src += (height - 1) * y_stride; |
| 715 |
WRITE_RGB16(1, 0, C1) |
y_src2 = y_src - y_stride; |
| 716 |
|
u_src += (height / 2 - 1) * uv_stride; |
| 717 |
#define YV12_TO_RGB16I_ROW(SIZE,C1,C2,C3,C4) \ |
v_src += (height / 2 - 1) * uv_stride; |
| 718 |
int r[4], g[4], b[4]; \ |
y_dif = -width - 2 * y_stride; |
| 719 |
r[0] = r[1] = r[2] = r[3] = 0; \ |
uv_stride = -uv_stride; |
| 720 |
g[0] = g[1] = g[2] = g[3] = 0; \ |
} |
| 721 |
b[0] = b[1] = b[2] = b[3] = 0; |
|
| 722 |
#define YV12_TO_RGB16I(SIZE,C1,C2,C3,C4) \ |
for (y = height / 2; y; y--) { |
| 723 |
int rgb_y; \ |
int r, g, b; |
| 724 |
int b_u0 = B_U_tab[ u_ptr[0] ]; \ |
int r2, g2, b2; |
| 725 |
int g_uv0 = G_U_tab[ u_ptr[0] ] + G_V_tab[ v_ptr[0] ]; \ |
|
| 726 |
int r_v0 = R_V_tab[ v_ptr[0] ]; \ |
r = g = b = 0; |
| 727 |
int b_u1 = B_U_tab[ u_ptr[uv_stride] ]; \ |
r2 = g2 = b2 = 0; |
| 728 |
int g_uv1 = G_U_tab[ u_ptr[uv_stride] ] + G_V_tab[ v_ptr[uv_stride] ]; \ |
|
| 729 |
int r_v1 = R_V_tab[ v_ptr[uv_stride] ]; \ |
// process one 2x2 block per iteration |
| 730 |
WRITE_RGB16(0, 0, C1) \ |
for (x = 0; x < (uint32_t) width / 2; x++) { |
| 731 |
WRITE_RGB16(1, 1, C1) \ |
int u, v; |
| 732 |
WRITE_RGB16(2, 0, C1) \ |
int b_u, g_uv, r_v, rgb_y; |
| 733 |
WRITE_RGB16(3, 1, C1) \ |
|
| 734 |
|
u = u_src[x]; |
| 735 |
|
v = v_src[x]; |
| 736 |
/* rgb/rgbi output */ |
|
| 737 |
|
b_u = B_U_tab[u]; |
| 738 |
#define WRITE_RGB(SIZE,ROW,UV_ROW,C1,C2,C3,C4) \ |
g_uv = G_U_tab[u] + G_V_tab[v]; |
| 739 |
rgb_y = RGB_Y_tab[ y_ptr[(ROW)*y_stride + 0] ]; \ |
r_v = R_V_tab[v]; |
| 740 |
x_ptr[(ROW)*x_stride+(C3)] = MAX(0, MIN(255, (rgb_y + b_u##UV_ROW) >> SCALEBITS_OUT)); \ |
|
| 741 |
x_ptr[(ROW)*x_stride+(C2)] = MAX(0, MIN(255, (rgb_y - g_uv##UV_ROW) >> SCALEBITS_OUT)); \ |
rgb_y = RGB_Y_tab[*y_src]; |
| 742 |
x_ptr[(ROW)*x_stride+(C1)] = MAX(0, MIN(255, (rgb_y + r_v##UV_ROW) >> SCALEBITS_OUT)); \ |
b = (b & 0x7) + ((rgb_y + b_u) >> SCALEBITS_OUT); |
| 743 |
if ((SIZE)>3) x_ptr[(ROW)*x_stride+(C4)] = 0; \ |
g = (g & 0x7) + ((rgb_y - g_uv) >> SCALEBITS_OUT); |
| 744 |
rgb_y = RGB_Y_tab[ y_ptr[(ROW)*y_stride + 1] ]; \ |
r = (r & 0x7) + ((rgb_y + r_v) >> SCALEBITS_OUT); |
| 745 |
x_ptr[(ROW)*x_stride+(SIZE)+(C3)] = MAX(0, MIN(255, (rgb_y + b_u##UV_ROW) >> SCALEBITS_OUT)); \ |
*(uint16_t *) dst = MK_RGB565(r, g, b); |
| 746 |
x_ptr[(ROW)*x_stride+(SIZE)+(C2)] = MAX(0, MIN(255, (rgb_y - g_uv##UV_ROW) >> SCALEBITS_OUT)); \ |
|
| 747 |
x_ptr[(ROW)*x_stride+(SIZE)+(C1)] = MAX(0, MIN(255, (rgb_y + r_v##UV_ROW) >> SCALEBITS_OUT)); \ |
y_src++; |
| 748 |
if ((SIZE)>3) x_ptr[(ROW)*x_stride+(SIZE)+(C4)] = 0; |
rgb_y = RGB_Y_tab[*y_src]; |
| 749 |
|
b = (b & 0x7) + ((rgb_y + b_u) >> SCALEBITS_OUT); |
| 750 |
|
g = (g & 0x7) + ((rgb_y - g_uv) >> SCALEBITS_OUT); |
| 751 |
#define YV12_TO_RGB_ROW(SIZE,C1,C2,C3,C4) /* nothing */ |
r = (r & 0x7) + ((rgb_y + r_v) >> SCALEBITS_OUT); |
| 752 |
#define YV12_TO_RGB(SIZE,C1,C2,C3,C4) \ |
*(uint16_t *) (dst + 2) = MK_RGB565(r, g, b); |
| 753 |
int rgb_y; \ |
y_src++; |
| 754 |
int b_u0 = B_U_tab[ u_ptr[0] ]; \ |
|
| 755 |
int g_uv0 = G_U_tab[ u_ptr[0] ] + G_V_tab[ v_ptr[0] ]; \ |
rgb_y = RGB_Y_tab[*y_src2]; |
| 756 |
int r_v0 = R_V_tab[ v_ptr[0] ]; \ |
b2 = (b2 & 0x7) + ((rgb_y + b_u) >> SCALEBITS_OUT); |
| 757 |
WRITE_RGB(SIZE, 0, 0, C1,C2,C3,C4) \ |
g2 = (g2 & 0x7) + ((rgb_y - g_uv) >> SCALEBITS_OUT); |
| 758 |
WRITE_RGB(SIZE, 1, 0, C1,C2,C3,C4) |
r2 = (r2 & 0x7) + ((rgb_y + r_v) >> SCALEBITS_OUT); |
| 759 |
|
*(uint16_t *) (dst2) = MK_RGB565(r2, g2, b2); |
| 760 |
#define YV12_TO_RGBI_ROW(SIZE,C1,C2,C3,C4) /* nothing */ |
y_src2++; |
| 761 |
#define YV12_TO_RGBI(SIZE,C1,C2,C3,C4) \ |
|
| 762 |
int rgb_y; \ |
rgb_y = RGB_Y_tab[*y_src2]; |
| 763 |
int b_u0 = B_U_tab[ u_ptr[0] ]; \ |
b2 = (b2 & 0x7) + ((rgb_y + b_u) >> SCALEBITS_OUT); |
| 764 |
int g_uv0 = G_U_tab[ u_ptr[0] ] + G_V_tab[ v_ptr[0] ]; \ |
g2 = (g2 & 0x7) + ((rgb_y - g_uv) >> SCALEBITS_OUT); |
| 765 |
int r_v0 = R_V_tab[ v_ptr[0] ]; \ |
r2 = (r2 & 0x7) + ((rgb_y + r_v) >> SCALEBITS_OUT); |
| 766 |
int b_u1 = B_U_tab[ u_ptr[uv_stride] ]; \ |
*(uint16_t *) (dst2 + 2) = MK_RGB565(r2, g2, b2); |
| 767 |
int g_uv1 = G_U_tab[ u_ptr[uv_stride] ] + G_V_tab[ v_ptr[uv_stride] ]; \ |
y_src2++; |
| 768 |
int r_v1 = R_V_tab[ v_ptr[uv_stride] ]; \ |
|
| 769 |
WRITE_RGB(SIZE, 0, 0, C1,C2,C3,C4) \ |
dst += 4; |
| 770 |
WRITE_RGB(SIZE, 1, 1, C1,C2,C3,C4) \ |
dst2 += 4; |
| 771 |
WRITE_RGB(SIZE, 2, 0, C1,C2,C3,C4) \ |
} |
| 772 |
WRITE_RGB(SIZE, 3, 1, C1,C2,C3,C4) |
|
| 773 |
|
dst += dst_dif; |
| 774 |
|
dst2 += dst_dif; |
| 775 |
/* yuyv/yuyvi output */ |
|
| 776 |
|
y_src += y_dif; |
| 777 |
#define WRITE_YUYV(ROW,UV_ROW,C1,C2,C3,C4) \ |
y_src2 += y_dif; |
| 778 |
x_ptr[(ROW)*x_stride+(C1)] = y_ptr[ (ROW)*y_stride +0]; \ |
|
| 779 |
x_ptr[(ROW)*x_stride+(C2)] = u_ptr[(UV_ROW)*uv_stride+0]; \ |
u_src += uv_stride; |
| 780 |
x_ptr[(ROW)*x_stride+(C3)] = y_ptr[ (ROW)*y_stride +1]; \ |
v_src += uv_stride; |
| 781 |
x_ptr[(ROW)*x_stride+(C4)] = v_ptr[(UV_ROW)*uv_stride+0]; \ |
} |
| 782 |
|
} |
| 783 |
#define YV12_TO_YUYV_ROW(SIZE,C1,C2,C3,C4) /* nothing */ |
|
| 784 |
#define YV12_TO_YUYV(SIZE,C1,C2,C3,C4) \ |
|
| 785 |
WRITE_YUYV(0, 0, C1,C2,C3,C4) \ |
|
| 786 |
WRITE_YUYV(1, 0, C1,C2,C3,C4) |
/* yuv 4:2:0 planar -> rgb24 */ |
| 787 |
|
|
| 788 |
#define YV12_TO_YUYVI_ROW(SIZE,C1,C2,C3,C4) /* nothing */ |
void |
| 789 |
#define YV12_TO_YUYVI(SIZE,C1,C2,C3,C4) \ |
yv12_to_rgb24_c(uint8_t * dst, |
| 790 |
WRITE_YUYV(0, 0, C1,C2,C3,C4) \ |
int dst_stride, |
| 791 |
WRITE_YUYV(1, 1, C1,C2,C3,C4) \ |
uint8_t * y_src, |
| 792 |
WRITE_YUYV(2, 0, C1,C2,C3,C4) \ |
uint8_t * u_src, |
| 793 |
WRITE_YUYV(3, 1, C1,C2,C3,C4) |
uint8_t * v_src, |
| 794 |
|
int y_stride, |
| 795 |
|
int uv_stride, |
| 796 |
MAKE_COLORSPACE(yv12_to_rgb555_c, 2,2,2, YV12_TO_RGB16, MK_RGB555, 0,0,0) |
int width, |
| 797 |
MAKE_COLORSPACE(yv12_to_rgb565_c, 2,2,2, YV12_TO_RGB16, MK_RGB565, 0,0,0) |
int height) |
| 798 |
MAKE_COLORSPACE(yv12_to_bgr_c, 3,2,2, YV12_TO_RGB, 2,1,0, 0) |
{ |
| 799 |
MAKE_COLORSPACE(yv12_to_bgra_c, 4,2,2, YV12_TO_RGB, 2,1,0,3) |
const uint32_t dst_dif = 6 * dst_stride - 3 * width; |
| 800 |
MAKE_COLORSPACE(yv12_to_abgr_c, 4,2,2, YV12_TO_RGB, 3,2,1,0) |
int32_t y_dif = 2 * y_stride - width; |
| 801 |
MAKE_COLORSPACE(yv12_to_rgba_c, 4,2,2, YV12_TO_RGB, 0,1,2,3) |
|
| 802 |
MAKE_COLORSPACE(yv12_to_yuyv_c, 2,2,2, YV12_TO_YUYV, 0,1,2,3) |
uint8_t *dst2 = dst + 3 * dst_stride; |
| 803 |
MAKE_COLORSPACE(yv12_to_uyvy_c, 2,2,2, YV12_TO_YUYV, 1,0,3,2) |
uint8_t *y_src2 = y_src + y_stride; |
| 804 |
|
uint32_t x, y; |
| 805 |
MAKE_COLORSPACE(yv12_to_rgb555i_c, 2,2,4, YV12_TO_RGB16I, MK_RGB555, 0,0,0) |
|
| 806 |
MAKE_COLORSPACE(yv12_to_rgb565i_c, 2,2,4, YV12_TO_RGB16I, MK_RGB565, 0,0,0) |
if (height < 0) { // flip image? |
| 807 |
MAKE_COLORSPACE(yv12_to_bgri_c, 3,2,4, YV12_TO_RGBI, 2,1,0, 0) |
height = -height; |
| 808 |
MAKE_COLORSPACE(yv12_to_bgrai_c, 4,2,4, YV12_TO_RGBI, 2,1,0,3) |
y_src += (height - 1) * y_stride; |
| 809 |
MAKE_COLORSPACE(yv12_to_abgri_c, 4,2,4, YV12_TO_RGBI, 3,2,1,0) |
y_src2 = y_src - y_stride; |
| 810 |
MAKE_COLORSPACE(yv12_to_rgbai_c, 4,2,4, YV12_TO_RGBI, 0,1,2,3) |
u_src += (height / 2 - 1) * uv_stride; |
| 811 |
MAKE_COLORSPACE(yv12_to_yuyvi_c, 2,2,4, YV12_TO_YUYVI, 0,1,2,3) |
v_src += (height / 2 - 1) * uv_stride; |
| 812 |
MAKE_COLORSPACE(yv12_to_uyvyi_c, 2,2,4, YV12_TO_YUYVI, 1,0,3,2) |
y_dif = -width - 2 * y_stride; |
| 813 |
|
uv_stride = -uv_stride; |
| 814 |
|
} |
| 815 |
|
|
| 816 |
/* yv12 to yv12 copy function */ |
for (y = height / 2; y; y--) { |
| 817 |
|
// process one 2x2 block per iteration |
| 818 |
void |
for (x = 0; x < (uint32_t) width / 2; x++) { |
| 819 |
yv12_to_yv12_c(uint8_t * y_dst, uint8_t * u_dst, uint8_t * v_dst, |
int u, v; |
| 820 |
int y_dst_stride, int uv_dst_stride, |
int b_u, g_uv, r_v, rgb_y; |
| 821 |
uint8_t * y_src, uint8_t * u_src, uint8_t * v_src, |
int r, g, b; |
| 822 |
int y_src_stride, int uv_src_stride, |
|
| 823 |
int width, int height, int vflip) |
u = u_src[x]; |
| 824 |
{ |
v = v_src[x]; |
| 825 |
int width2 = width / 2; |
|
| 826 |
int height2 = height / 2; |
b_u = B_U_tab[u]; |
| 827 |
int y; |
g_uv = G_U_tab[u] + G_V_tab[v]; |
| 828 |
|
r_v = R_V_tab[v]; |
| 829 |
if (vflip) { |
|
| 830 |
y_src += (height - 1) * y_src_stride; |
rgb_y = RGB_Y_tab[*y_src]; |
| 831 |
u_src += (height2 - 1) * uv_src_stride; |
b = (rgb_y + b_u) >> SCALEBITS_OUT; |
| 832 |
v_src += (height2 - 1) * uv_src_stride; |
g = (rgb_y - g_uv) >> SCALEBITS_OUT; |
| 833 |
y_src_stride = -y_src_stride; |
r = (rgb_y + r_v) >> SCALEBITS_OUT; |
| 834 |
uv_src_stride = -uv_src_stride; |
dst[0] = MAX(0, MIN(255, b)); |
| 835 |
|
dst[1] = MAX(0, MIN(255, g)); |
| 836 |
|
dst[2] = MAX(0, MIN(255, r)); |
| 837 |
|
|
| 838 |
|
y_src++; |
| 839 |
|
rgb_y = RGB_Y_tab[*y_src]; |
| 840 |
|
b = (rgb_y + b_u) >> SCALEBITS_OUT; |
| 841 |
|
g = (rgb_y - g_uv) >> SCALEBITS_OUT; |
| 842 |
|
r = (rgb_y + r_v) >> SCALEBITS_OUT; |
| 843 |
|
dst[3] = MAX(0, MIN(255, b)); |
| 844 |
|
dst[4] = MAX(0, MIN(255, g)); |
| 845 |
|
dst[5] = MAX(0, MIN(255, r)); |
| 846 |
|
y_src++; |
| 847 |
|
|
| 848 |
|
rgb_y = RGB_Y_tab[*y_src2]; |
| 849 |
|
b = (rgb_y + b_u) >> SCALEBITS_OUT; |
| 850 |
|
g = (rgb_y - g_uv) >> SCALEBITS_OUT; |
| 851 |
|
r = (rgb_y + r_v) >> SCALEBITS_OUT; |
| 852 |
|
dst2[0] = MAX(0, MIN(255, b)); |
| 853 |
|
dst2[1] = MAX(0, MIN(255, g)); |
| 854 |
|
dst2[2] = MAX(0, MIN(255, r)); |
| 855 |
|
y_src2++; |
| 856 |
|
|
| 857 |
|
rgb_y = RGB_Y_tab[*y_src2]; |
| 858 |
|
b = (rgb_y + b_u) >> SCALEBITS_OUT; |
| 859 |
|
g = (rgb_y - g_uv) >> SCALEBITS_OUT; |
| 860 |
|
r = (rgb_y + r_v) >> SCALEBITS_OUT; |
| 861 |
|
dst2[3] = MAX(0, MIN(255, b)); |
| 862 |
|
dst2[4] = MAX(0, MIN(255, g)); |
| 863 |
|
dst2[5] = MAX(0, MIN(255, r)); |
| 864 |
|
y_src2++; |
| 865 |
|
|
| 866 |
|
dst += 6; |
| 867 |
|
dst2 += 6; |
| 868 |
|
} |
| 869 |
|
|
| 870 |
|
dst += dst_dif; |
| 871 |
|
dst2 += dst_dif; |
| 872 |
|
|
| 873 |
|
y_src += y_dif; |
| 874 |
|
y_src2 += y_dif; |
| 875 |
|
|
| 876 |
|
u_src += uv_stride; |
| 877 |
|
v_src += uv_stride; |
| 878 |
|
} |
| 879 |
|
} |
| 880 |
|
|
| 881 |
|
|
| 882 |
|
|
| 883 |
|
/* yuv 4:2:0 planar -> rgb32 */ |
| 884 |
|
|
| 885 |
|
void |
| 886 |
|
yv12_to_rgb32_c(uint8_t * dst, |
| 887 |
|
int dst_stride, |
| 888 |
|
uint8_t * y_src, |
| 889 |
|
uint8_t * v_src, |
| 890 |
|
uint8_t * u_src, |
| 891 |
|
int y_stride, |
| 892 |
|
int uv_stride, |
| 893 |
|
int width, |
| 894 |
|
int height) |
| 895 |
|
{ |
| 896 |
|
const uint32_t dst_dif = 8 * dst_stride - 4 * width; |
| 897 |
|
int32_t y_dif = 2 * y_stride - width; |
| 898 |
|
|
| 899 |
|
uint8_t *dst2 = dst + 4 * dst_stride; |
| 900 |
|
uint8_t *y_src2 = y_src + y_stride; |
| 901 |
|
uint32_t x, y; |
| 902 |
|
|
| 903 |
|
if (height < 0) { // flip image? |
| 904 |
|
height = -height; |
| 905 |
|
y_src += (height - 1) * y_stride; |
| 906 |
|
y_src2 = y_src - y_stride; |
| 907 |
|
u_src += (height / 2 - 1) * uv_stride; |
| 908 |
|
v_src += (height / 2 - 1) * uv_stride; |
| 909 |
|
y_dif = -width - 2 * y_stride; |
| 910 |
|
uv_stride = -uv_stride; |
| 911 |
|
} |
| 912 |
|
|
| 913 |
|
for (y = height / 2; y; y--) { |
| 914 |
|
// process one 2x2 block per iteration |
| 915 |
|
for (x = 0; x < (uint32_t) width / 2; x++) { |
| 916 |
|
int u, v; |
| 917 |
|
int b_u, g_uv, r_v, rgb_y; |
| 918 |
|
int r, g, b; |
| 919 |
|
|
| 920 |
|
u = u_src[x]; |
| 921 |
|
v = v_src[x]; |
| 922 |
|
|
| 923 |
|
b_u = B_U_tab[u]; |
| 924 |
|
g_uv = G_U_tab[u] + G_V_tab[v]; |
| 925 |
|
r_v = R_V_tab[v]; |
| 926 |
|
|
| 927 |
|
rgb_y = RGB_Y_tab[*y_src]; |
| 928 |
|
b = (rgb_y + b_u) >> SCALEBITS_OUT; |
| 929 |
|
g = (rgb_y - g_uv) >> SCALEBITS_OUT; |
| 930 |
|
r = (rgb_y + r_v) >> SCALEBITS_OUT; |
| 931 |
|
dst[0] = MAX(0, MIN(255, r)); |
| 932 |
|
dst[1] = MAX(0, MIN(255, g)); |
| 933 |
|
dst[2] = MAX(0, MIN(255, b)); |
| 934 |
|
dst[3] = 0; |
| 935 |
|
|
| 936 |
|
y_src++; |
| 937 |
|
rgb_y = RGB_Y_tab[*y_src]; |
| 938 |
|
b = (rgb_y + b_u) >> SCALEBITS_OUT; |
| 939 |
|
g = (rgb_y - g_uv) >> SCALEBITS_OUT; |
| 940 |
|
r = (rgb_y + r_v) >> SCALEBITS_OUT; |
| 941 |
|
dst[4] = MAX(0, MIN(255, r)); |
| 942 |
|
dst[5] = MAX(0, MIN(255, g)); |
| 943 |
|
dst[6] = MAX(0, MIN(255, b)); |
| 944 |
|
dst[7] = 0; |
| 945 |
|
y_src++; |
| 946 |
|
|
| 947 |
|
rgb_y = RGB_Y_tab[*y_src2]; |
| 948 |
|
b = (rgb_y + b_u) >> SCALEBITS_OUT; |
| 949 |
|
g = (rgb_y - g_uv) >> SCALEBITS_OUT; |
| 950 |
|
r = (rgb_y + r_v) >> SCALEBITS_OUT; |
| 951 |
|
dst2[0] = MAX(0, MIN(255, r)); |
| 952 |
|
dst2[1] = MAX(0, MIN(255, g)); |
| 953 |
|
dst2[2] = MAX(0, MIN(255, b)); |
| 954 |
|
dst2[3] = 0; |
| 955 |
|
y_src2++; |
| 956 |
|
|
| 957 |
|
rgb_y = RGB_Y_tab[*y_src2]; |
| 958 |
|
b = (rgb_y + b_u) >> SCALEBITS_OUT; |
| 959 |
|
g = (rgb_y - g_uv) >> SCALEBITS_OUT; |
| 960 |
|
r = (rgb_y + r_v) >> SCALEBITS_OUT; |
| 961 |
|
dst2[4] = MAX(0, MIN(255, r)); |
| 962 |
|
dst2[5] = MAX(0, MIN(255, g)); |
| 963 |
|
dst2[6] = MAX(0, MIN(255, b)); |
| 964 |
|
dst2[7] = 0; |
| 965 |
|
y_src2++; |
| 966 |
|
|
| 967 |
|
dst += 8; |
| 968 |
|
dst2 += 8; |
| 969 |
|
} |
| 970 |
|
|
| 971 |
|
dst += dst_dif; |
| 972 |
|
dst2 += dst_dif; |
| 973 |
|
|
| 974 |
|
y_src += y_dif; |
| 975 |
|
y_src2 += y_dif; |
| 976 |
|
|
| 977 |
|
u_src += uv_stride; |
| 978 |
|
v_src += uv_stride; |
| 979 |
|
} |
| 980 |
|
} |
| 981 |
|
|
| 982 |
|
|
| 983 |
|
|
| 984 |
|
/* yuv 4:2:0 planar -> yuv planar */ |
| 985 |
|
|
| 986 |
|
void |
| 987 |
|
yv12_to_yuv_c(uint8_t * dst, |
| 988 |
|
int dst_stride, |
| 989 |
|
uint8_t * y_src, |
| 990 |
|
uint8_t * u_src, |
| 991 |
|
uint8_t * v_src, |
| 992 |
|
int y_stride, |
| 993 |
|
int uv_stride, |
| 994 |
|
int width, |
| 995 |
|
int height) |
| 996 |
|
{ |
| 997 |
|
uint32_t dst_stride2 = dst_stride >> 1; |
| 998 |
|
uint32_t width2 = width >> 1; |
| 999 |
|
uint32_t y; |
| 1000 |
|
|
| 1001 |
|
if (height < 0) { |
| 1002 |
|
height = -height; |
| 1003 |
|
y_src += (height - 1) * y_stride; |
| 1004 |
|
u_src += (height / 2 - 1) * uv_stride; |
| 1005 |
|
v_src += (height / 2 - 1) * uv_stride; |
| 1006 |
|
y_stride = -y_stride; |
| 1007 |
|
uv_stride = -uv_stride; |
| 1008 |
} |
} |
| 1009 |
|
|
| 1010 |
for (y = height; y; y--) { |
for (y = height; y; y--) { |
| 1011 |
memcpy(y_dst, y_src, width); |
memcpy(dst, y_src, width); |
| 1012 |
y_src += y_src_stride; |
dst += dst_stride; |
| 1013 |
y_dst += y_dst_stride; |
y_src += y_stride; |
| 1014 |
} |
} |
| 1015 |
|
|
| 1016 |
for (y = height2; y; y--) { |
for (y = height >> 1; y; y--) { |
| 1017 |
memcpy(u_dst, u_src, width2); |
memcpy(dst, u_src, width2); |
| 1018 |
u_src += uv_src_stride; |
dst += dst_stride2; |
| 1019 |
u_dst += uv_dst_stride; |
u_src += uv_stride; |
| 1020 |
} |
} |
| 1021 |
|
|
| 1022 |
for (y = height2; y; y--) { |
for (y = height >> 1; y; y--) { |
| 1023 |
memcpy(v_dst, v_src, width2); |
memcpy(dst, v_src, width2); |
| 1024 |
v_src += uv_src_stride; |
dst += dst_stride2; |
| 1025 |
v_dst += uv_dst_stride; |
v_src += uv_stride; |
| 1026 |
} |
} |
| 1027 |
} |
} |
| 1028 |
|
|
| 1029 |
|
|
| 1030 |
|
|
| 1031 |
/* initialize rgb lookup tables */ |
|
| 1032 |
|
/* yuv 4:2:0 planar -> yuyv (yuv2) packed */ |
| 1033 |
|
|
| 1034 |
void |
void |
| 1035 |
colorspace_init(void) |
yv12_to_yuyv_c(uint8_t * dst, |
| 1036 |
|
int dst_stride, |
| 1037 |
|
uint8_t * y_src, |
| 1038 |
|
uint8_t * u_src, |
| 1039 |
|
uint8_t * v_src, |
| 1040 |
|
int y_stride, |
| 1041 |
|
int uv_stride, |
| 1042 |
|
int width, |
| 1043 |
|
int height) |
| 1044 |
{ |
{ |
| 1045 |
int32_t i; |
const uint32_t dst_dif = 2 * (dst_stride - width); |
| 1046 |
|
uint32_t x, y; |
| 1047 |
|
|
| 1048 |
for (i = 0; i < 256; i++) { |
if (height < 0) { |
| 1049 |
RGB_Y_tab[i] = FIX_OUT(RGB_Y_OUT) * (i - Y_ADD_OUT); |
height = -height; |
| 1050 |
B_U_tab[i] = FIX_OUT(B_U_OUT) * (i - U_ADD_OUT); |
y_src += (height - 1) * y_stride; |
| 1051 |
G_U_tab[i] = FIX_OUT(G_U_OUT) * (i - U_ADD_OUT); |
u_src += (height / 2 - 1) * uv_stride; |
| 1052 |
G_V_tab[i] = FIX_OUT(G_V_OUT) * (i - V_ADD_OUT); |
v_src += (height / 2 - 1) * uv_stride; |
| 1053 |
R_V_tab[i] = FIX_OUT(R_V_OUT) * (i - V_ADD_OUT); |
y_stride = -y_stride; |
| 1054 |
|
uv_stride = -uv_stride; |
| 1055 |
|
} |
| 1056 |
|
|
| 1057 |
|
for (y = 0; y < (uint32_t) height; y++) { |
| 1058 |
|
for (x = 0; x < (uint32_t) width / 2; x++) { |
| 1059 |
|
dst[0] = y_src[2 * x]; |
| 1060 |
|
dst[1] = u_src[x]; |
| 1061 |
|
dst[2] = y_src[2 * x + 1]; |
| 1062 |
|
dst[3] = v_src[x]; |
| 1063 |
|
dst += 4; |
| 1064 |
|
} |
| 1065 |
|
dst += dst_dif; |
| 1066 |
|
y_src += y_stride; |
| 1067 |
|
if (y & 1) { |
| 1068 |
|
u_src += uv_stride; |
| 1069 |
|
v_src += uv_stride; |
| 1070 |
|
} |
| 1071 |
|
} |
| 1072 |
|
} |
| 1073 |
|
|
| 1074 |
|
|
| 1075 |
|
|
| 1076 |
|
/* yuv 4:2:0 planar -> uyvy packed */ |
| 1077 |
|
|
| 1078 |
|
void |
| 1079 |
|
yv12_to_uyvy_c(uint8_t * dst, |
| 1080 |
|
int dst_stride, |
| 1081 |
|
uint8_t * y_src, |
| 1082 |
|
uint8_t * u_src, |
| 1083 |
|
uint8_t * v_src, |
| 1084 |
|
int y_stride, |
| 1085 |
|
int uv_stride, |
| 1086 |
|
int width, |
| 1087 |
|
int height) |
| 1088 |
|
{ |
| 1089 |
|
const uint32_t dst_dif = 2 * (dst_stride - width); |
| 1090 |
|
uint32_t x, y; |
| 1091 |
|
|
| 1092 |
|
if (height < 0) { |
| 1093 |
|
height = -height; |
| 1094 |
|
y_src += (height - 1) * y_stride; |
| 1095 |
|
u_src += (height / 2 - 1) * uv_stride; |
| 1096 |
|
v_src += (height / 2 - 1) * uv_stride; |
| 1097 |
|
y_stride = -y_stride; |
| 1098 |
|
uv_stride = -uv_stride; |
| 1099 |
|
} |
| 1100 |
|
|
| 1101 |
|
for (y = 0; y < (uint32_t) height; y++) { |
| 1102 |
|
for (x = 0; x < (uint32_t) width / 2; x++) { |
| 1103 |
|
dst[0] = u_src[x]; |
| 1104 |
|
dst[1] = y_src[2 * x]; |
| 1105 |
|
dst[2] = v_src[x]; |
| 1106 |
|
dst[3] = y_src[2 * x + 1]; |
| 1107 |
|
dst += 4; |
| 1108 |
|
} |
| 1109 |
|
dst += dst_dif; |
| 1110 |
|
y_src += y_stride; |
| 1111 |
|
if (y & 1) { |
| 1112 |
|
u_src += uv_stride; |
| 1113 |
|
v_src += uv_stride; |
| 1114 |
|
} |
| 1115 |
|
} |
| 1116 |
|
} |
| 1117 |
|
|
| 1118 |
|
|
| 1119 |
|
/* user yuv planar -> yuv 4:2:0 planar |
| 1120 |
|
|
| 1121 |
|
NOTE: does not flip */ |
| 1122 |
|
|
| 1123 |
|
void |
| 1124 |
|
user_to_yuv_c(uint8_t * y_out, |
| 1125 |
|
uint8_t * u_out, |
| 1126 |
|
uint8_t * v_out, |
| 1127 |
|
int stride, |
| 1128 |
|
DEC_PICTURE * picture, |
| 1129 |
|
int width, |
| 1130 |
|
int height) |
| 1131 |
|
{ |
| 1132 |
|
uint32_t stride2 = stride >> 1; |
| 1133 |
|
uint32_t width2 = width >> 1; |
| 1134 |
|
uint32_t y; |
| 1135 |
|
uint8_t *src; |
| 1136 |
|
|
| 1137 |
|
src = picture->y; |
| 1138 |
|
for (y = height; y; y--) { |
| 1139 |
|
memcpy(y_out, src, width); |
| 1140 |
|
src += picture->stride_y; |
| 1141 |
|
y_out += stride; |
| 1142 |
|
} |
| 1143 |
|
|
| 1144 |
|
src = picture->u; |
| 1145 |
|
for (y = height >> 1; y; y--) { |
| 1146 |
|
memcpy(u_out, src, width2); |
| 1147 |
|
src += picture->stride_uv; |
| 1148 |
|
u_out += stride2; |
| 1149 |
|
} |
| 1150 |
|
|
| 1151 |
|
src = picture->v; |
| 1152 |
|
for (y = height >> 1; y; y--) { |
| 1153 |
|
memcpy(v_out, src, width2); |
| 1154 |
|
src += picture->stride_uv; |
| 1155 |
|
v_out += stride2; |
| 1156 |
} |
} |
| 1157 |
} |
} |
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