diff options
Diffstat (limited to 'kopete/protocols/msn/webcam/libmimic/colorspace.c')
| -rw-r--r-- | kopete/protocols/msn/webcam/libmimic/colorspace.c | 161 |
1 files changed, 0 insertions, 161 deletions
diff --git a/kopete/protocols/msn/webcam/libmimic/colorspace.c b/kopete/protocols/msn/webcam/libmimic/colorspace.c deleted file mode 100644 index 27de4a09..00000000 --- a/kopete/protocols/msn/webcam/libmimic/colorspace.c +++ /dev/null @@ -1,161 +0,0 @@ -/* Copyright (C) 2005 Ole André Vadla Ravnås <oleavr@gmail.com> - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2.1 of the License, or (at your option) any later version. - * - * This library is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - */ - -#include "mimic-private.h" - -#define RED_INDEX_1 0 -#define GREEN_INDEX_1 1 -#define BLUE_INDEX_1 2 - -#define RED_INDEX_2 3 -#define GREEN_INDEX_2 4 -#define BLUE_INDEX_2 5 - -/* - * _rgb_to_yuv - * - * Internal helper-function used to convert an image - * from RGB 24-bpp packed-pixel to YUV420 planar. - */ -void _rgb_to_yuv(const guchar *input_rgb, - guchar *output_y, - guchar *output_cb, - guchar *output_cr, - gint width, - gint height) -{ - gint y, x; - - for (y = 0; y < height; y += 2) { - - const guchar *src1, *src2; - guchar *dst1, *dst2, *dst3, *dst4; - gint num_cols; - - src1 = input_rgb + ((height - 1 - y) * width * 3); - src2 = input_rgb + ((height - 2 - y) * width * 3); - - dst1 = output_y + (y * width); - dst2 = output_y + ((y + 1) * width); - dst3 = output_cb + ((y / 2) * (width / 2)); - dst4 = output_cr + ((y / 2) * (width / 2)); - - num_cols = width / 2; - - for (x = 0; x < num_cols; x++) { - - gint expr1, expr2, expr3, expr4, expr5, v; - - expr1 = (src1[BLUE_INDEX_1] * 19595) + (src1[GREEN_INDEX_1] * 38470) + (src1[RED_INDEX_1] * 7471); - expr2 = (src1[BLUE_INDEX_2] * 19595) + (src1[GREEN_INDEX_2] * 38470) + (src1[RED_INDEX_2] * 7471); - expr3 = (src2[BLUE_INDEX_1] * 19595) + (src2[GREEN_INDEX_1] * 38470) + (src2[RED_INDEX_1] * 7471); - expr4 = (src2[BLUE_INDEX_2] * 19595) + (src2[GREEN_INDEX_2] * 38470) + (src2[RED_INDEX_2] * 7471); - - expr5 = expr1 + expr2 + expr3 + expr4; - - dst1[0] = expr1 >> 16; - dst1[1] = expr2 >> 16; - dst2[0] = expr3 >> 16; - dst2[1] = expr4 >> 16; - - v = (((src1[BLUE_INDEX_1] + src1[BLUE_INDEX_2] + src2[BLUE_INDEX_1] + src2[BLUE_INDEX_2]) << 16) - expr5 + 131071) >> 16; - dst3[0] = _clamp_value(((v * 57475) >> 18) + 128); - - v = (((src1[RED_INDEX_1] + src1[RED_INDEX_2] + src2[RED_INDEX_1] + src2[RED_INDEX_2]) << 16) - expr5 + 131071) >> 16; - dst4[0] = ((v * 32244) >> 18) + 128; - - src1 += 6; - src2 += 6; - - dst1 += 2; - dst2 += 2; - dst3++; - dst4++; - - } - - } - -} - -/* - * _yuv_to_rgb - * - * Internal helper-function used to convert an image - * from YUV420 planar to RGB 24-bpp packed-pixel. - */ -void _yuv_to_rgb(const guchar *input_y, - const guchar *input_cb, - const guchar *input_cr, - guchar *output_rgb, - guint width, - guint height) -{ - const guchar *src_y, *src_cb, *src_cr; - guchar *dst_rgb; - guint i, j, rgb_stride; - - src_y = input_y; - src_cb = input_cb; - src_cr = input_cr; - - rgb_stride = width * 3; - dst_rgb = output_rgb + (rgb_stride * (height - 1)); - - for (i = 0; i < height; i++) { - const guchar *p_y, *p_cb, *p_cr; - guchar *p_rgb; - - p_y = src_y; - p_cb = src_cb; - p_cr = src_cr; - - p_rgb = dst_rgb; - - for (j = 0; j < width; j++) { - gint v; - - v = ((p_y[0] * 65536) + ((p_cr[0] - 128) * 133169)) / 65536; - p_rgb[0] = _clamp_value(v); - - v = ((p_y[0] * 65536) - ((p_cr[0] - 128) * 25821) - ((p_cb[0] - 128) * 38076)) / 65536; - p_rgb[1] = _clamp_value(v); - - v = ((p_y[0] * 65536) + ((p_cb[0] - 128) * 74711)) / 65536; - p_rgb[2] = _clamp_value(v); - - p_y++; - if ((j + 1) % 2 == 0) { - p_cb++; - p_cr++; - } - - p_rgb += 3; - } - - src_y += width; - if ((i + 1) % 2 == 0) { - src_cb += (width + 1) / 2; - src_cr += (width + 1) / 2; - } - - dst_rgb -= rgb_stride; - - } - -} - |