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Diffstat (limited to 'extern/libredcode/debayer.c')
| -rw-r--r-- | extern/libredcode/debayer.c | 145 |
1 files changed, 0 insertions, 145 deletions
diff --git a/extern/libredcode/debayer.c b/extern/libredcode/debayer.c deleted file mode 100644 index a236fed1749..00000000000 --- a/extern/libredcode/debayer.c +++ /dev/null @@ -1,145 +0,0 @@ -/* ***** BEGIN GPL LICENSE BLOCK ***** - * - * Copyright 2008 Peter Schlaile - * - * This file is part of libredcode. - * - * Libredcode is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * Libredcode is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with Libredcode; if not, write to the Free Software Foundation, - * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - * - * ***** END GPL LICENSE BLOCK *****/ - -#include "debayer.h" - -/* pretty simple but astonishingly very effective "debayer" function - */ - -void redcode_ycbcr2rgb_fullscale( - int ** planes, int width, int height, float * out) -{ - int x,y; - int pix_max = 4096; - int mask = pix_max - 1; - float *o; - - for (y = 0; y < height; y++) { - for (x = 0; x < width; x++) { - int i = x + y*width; - int i_p = (y > 0) ? i-width : i; - int i_n = (y < (height-1)) ? i + width : i; - float y1n = planes[0][i_n] & mask; - float y1 = planes[0][i] & mask; - float cb = (planes[1][i] & mask) - pix_max/2; - float cr = (planes[2][i] & mask) - pix_max/2; - float y2 = (planes[3][i] & mask); - float y2p = (planes[3][i_p] & mask); - - float b_ = cb /(pix_max/2); - float r_ = cr /(pix_max/2); - float g_ = 0.0; - - float y_[4] = {y1 / pix_max, - (y2 + y2p)/2 / pix_max, - (y1 + y1n)/2 / pix_max, - y2 / pix_max}; - - int j; - int yc = 0; - - o = out + (2*height-1-2*y)*2*4*width - + x*2*4; - - for (j = 0; j < 8; j += 4) { - o[j+0] = r_ + y_[yc]; - o[j+1] = g_ + y_[yc]; - o[j+2] = b_ + y_[yc]; - o[j+3] = 1.0; - yc++; - } - - o = out + (2*height-1-2*y)*2*4*width - + x*2*4 - 2*4*width; - - for (j = 0; j < 8; j += 4) { - o[j+0] = r_ + y_[yc]; - o[j+1] = g_ + y_[yc]; - o[j+2] = b_ + y_[yc]; - o[j+3] = 1.0; - yc++; - } - } - } -} - -void redcode_ycbcr2rgb_halfscale( - int ** planes, int width, int height, float * out) -{ - int x,y; - int pix_max = 4096; - int mask = pix_max - 1; - - for (y = 0; y < height; y++) { - float *o = out + width * (height - y - 1); - for (x = 0; x < width; x++) { - int i = y*height + x; - float y1 = (planes[0][i] & mask); - float cb = (planes[1][i] & mask) - pix_max/2; - float cr = (planes[2][i] & mask) - pix_max/2; - float y2 = (planes[3][i] & mask); - - float b_ = cb /(pix_max/2); - float r_ = cr /(pix_max/2); - float g_ = 0.0; - - float y = (y1 + y2)/2 / pix_max; - - *o++ = r_ + y; - *o++ = g_ + y; - *o++ = b_ + y; - *o++ = 1.0; - } - } -} - - -void redcode_ycbcr2rgb_quarterscale( - int ** planes, int width, int height, float * out) -{ - int x,y; - int pix_max = 4096; - int mask = pix_max - 1; - - for (y = 0; y < height; y += 2) { - float *o = out + (width/2) * (height/2 - y/2 - 1); - for (x = 0; x < width; x += 2) { - int i = y * width + x; - float y1 = planes[0][i] & mask; - float cb = (planes[1][i] & mask) - pix_max/2; - float cr = (planes[2][i] & mask) - pix_max/2; - float y2 = planes[3][i] & mask; - - float b_ = cb /(pix_max/2); - float r_ = cr /(pix_max/2); - float g_ = 0.0; - - float y = (y1 + y2)/2 / pix_max; - - *o++ = r_ + y; - *o++ = g_ + y; - *o++ = b_ + y; - *o++ = 1.0; - } - } -} - |