+++ /dev/null
-
-/*
- * CINELERRA
- * Copyright (C) 2008 Adam Williams <broadcast at earthling dot net>
- *
- * This program 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.
- *
- * This program 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 this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *
- */
-
-#include "cicolors.h"
-
-#include <stdio.h>
-
-HSV::HSV()
-{
-}
-
-
-HSV::~HSV()
-{
-}
-
-YUV HSV::yuv_static;
-
-int HSV::rgb_to_hsv(float r, float g, float b, float &h, float &s, float &v)
-{
- float min, max, delta;
- min = ((r < g) ? r : g) < b ? ((r < g) ? r : g) : b;
- max = ((r > g) ? r : g) > b ? ((r > g) ? r : g) : b;
- v = max;
-
- delta = max - min;
-
- if(max != 0 && delta != 0)
- {
- s = delta / max; // s
-
- if(r == max)
- h = (g - b) / delta; // between yellow & magenta
- else
- if(g == max)
- h = 2 + (b - r) / delta; // between cyan & yellow
- else
- h = 4 + (r - g) / delta; // between magenta & cyan
-
- h *= 60; // degrees
- if(h < 0)
- h += 360;
- }
- else
- {
- // r = g = b = 0 // s = 0, v is undefined
- s = 0;
- h = -1;
- }
-
- return 0;
-}
-
-int HSV::hsv_to_rgb(float &r, float &g, float &b, float h, float s, float v)
-{
- int i;
- float f, p, q, t;
- if(s == 0)
- {
- // achromatic (grey)
- r = g = b = v;
- return 0;
- }
-
- h /= 60; // sector 0 to 5
- i = (int)h;
- f = h - i; // factorial part of h
- p = v * (1 - s);
- q = v * (1 - s * f);
- t = v * (1 - s * (1 - f));
-
- switch(i)
- {
- case 0:
- r = v;
- g = t;
- b = p;
- break;
- case 1:
- r = q;
- g = v;
- b = p;
- break;
- case 2:
- r = p;
- g = v;
- b = t;
- break;
- case 3:
- r = p;
- g = q;
- b = v;
- break;
- case 4:
- r = t;
- g = p;
- b = v;
- break;
- default: // case 5:
- r = v;
- g = p;
- b = q;
- break;
- }
- return 0;
-}
-
-int HSV::yuv_to_hsv(int y, int u, int v, float &h, float &s, float &va, int max)
-{
- float r, g, b;
- int r_i, g_i, b_i;
-
-// if(max == 0xffff)
-// {
-// yuv_static.yuv_to_rgb_16(r_i, g_i, b_i, y, u, v);
-// }
-// else
- {
- yuv_static.yuv_to_rgb_8(r_i, g_i, b_i, y, u, v);
- }
- r = (float)r_i / max;
- g = (float)g_i / max;
- b = (float)b_i / max;
-
- float h2, s2, v2;
- HSV::rgb_to_hsv(r, g, b, h2, s2, v2);
- h = h2;
- s = s2;
- va = v2;
-
- return 0;
-}
-
-int HSV::hsv_to_yuv(int &y, int &u, int &v, float h, float s, float va, int max)
-{
- float r, g, b;
- int r_i, g_i, b_i;
- HSV::hsv_to_rgb(r, g, b, h, s, va);
- r = r * max + 0.5;
- g = g * max + 0.5;
- b = b * max + 0.5;
- r_i = (int)CLIP(r, 0, max);
- g_i = (int)CLIP(g, 0, max);
- b_i = (int)CLIP(b, 0, max);
-
- int y2, u2, v2;
-// if(max == 0xffff)
-// yuv_static.rgb_to_yuv_16(r_i, g_i, b_i, y2, u2, v2);
-// else
- yuv_static.rgb_to_yuv_8(r_i, g_i, b_i, y2, u2, v2);
- y = y2;
- u = u2;
- v = v2;
-
- return 0;
-}
-
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-YUV::YUV()
-{
- for(int i = 0; i < 0x100; i++)
- {
-// compression
- rtoy_tab_8[i] = (int)(R_TO_Y * 0x100 * i);
- rtou_tab_8[i] = (int)(R_TO_U * 0x100 * i);
- rtov_tab_8[i] = (int)(R_TO_V * 0x100 * i);
-
- gtoy_tab_8[i] = (int)(G_TO_Y * 0x100 * i);
- gtou_tab_8[i] = (int)(G_TO_U * 0x100 * i);
- gtov_tab_8[i] = (int)(G_TO_V * 0x100 * i);
-
- btoy_tab_8[i] = (int)(B_TO_Y * 0x100 * i);
- btou_tab_8[i] = (int)(B_TO_U * 0x100 * i) + 0x8000;
- btov_tab_8[i] = (int)(B_TO_V * 0x100 * i) + 0x8000;
- }
-
- vtor_8 = &(vtor_tab_8[(0x100) / 2]);
- vtog_8 = &(vtog_tab_8[(0x100) / 2]);
- utog_8 = &(utog_tab_8[(0x100) / 2]);
- utob_8 = &(utob_tab_8[(0x100) / 2]);
-
- for(int i = (-0x100) / 2; i < (0x100) / 2; i++)
- {
-// decompression
- vtor_8[i] = (int)(V_TO_R * 0x100 * i);
- vtog_8[i] = (int)(V_TO_G * 0x100 * i);
-
- utog_8[i] = (int)(U_TO_G * 0x100 * i);
- utob_8[i] = (int)(U_TO_B * 0x100 * i);
- }
-
- for(int i = 0; i < 0x10000; i++)
- {
-// compression
- rtoy_tab_16[i] = (int)(R_TO_Y * 0x100 * i);
- rtou_tab_16[i] = (int)(R_TO_U * 0x100 * i);
- rtov_tab_16[i] = (int)(R_TO_V * 0x100 * i);
-
- gtoy_tab_16[i] = (int)(G_TO_Y * 0x100 * i);
- gtou_tab_16[i] = (int)(G_TO_U * 0x100 * i);
- gtov_tab_16[i] = (int)(G_TO_V * 0x100 * i);
-
- btoy_tab_16[i] = (int)(B_TO_Y * 0x100 * i);
- btou_tab_16[i] = (int)(B_TO_U * 0x100 * i) + 0x800000;
- btov_tab_16[i] = (int)(B_TO_V * 0x100 * i) + 0x800000;
- }
-
- vtor_16 = &(vtor_tab_16[(0x10000) / 2]);
- vtog_16 = &(vtog_tab_16[(0x10000) / 2]);
- utog_16 = &(utog_tab_16[(0x10000) / 2]);
- utob_16 = &(utob_tab_16[(0x10000) / 2]);
-
- for(int i = (-0x10000) / 2; i < (0x10000) / 2; i++)
- {
-// decompression
- vtor_16[i] = (int)(V_TO_R * 0x100 * i);
- vtog_16[i] = (int)(V_TO_G * 0x100 * i);
-
- utog_16[i] = (int)(U_TO_G * 0x100 * i);
- utob_16[i] = (int)(U_TO_B * 0x100 * i);
- }
-}
-
-YUV::~YUV()
-{
-}
projects / goodguy / history.git / blobdiff