X-Git-Url: http://git.cinelerra-gg.org/git/?a=blobdiff_plain;f=cinelerra-5.1%2Fguicast%2Fclip.h;h=00337442116c006443f2824e6572217fd7d8ab22;hb=0a0a29dd9e484b5622b46173d51bb6cefc0a5da4;hp=8a7d5c3b72284b9963fdeae59d76fae1d10cd5de;hpb=5a1b2bb96f2bd6b7ef4f8031763683726c02219d;p=goodguy%2Fhistory.git

diff --git a/cinelerra-5.1/guicast/clip.h b/cinelerra-5.1/guicast/clip.h
index 8a7d5c3b..00337442 100644
--- a/cinelerra-5.1/guicast/clip.h
+++ b/cinelerra-5.1/guicast/clip.h
@@ -2,25 +2,25 @@
 /*
  * 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
- * 
+ *
  */
 
-#ifndef CLIP_H
-#define CLIP_H
+#ifndef __CLIP_H__
+#define __CLIP_H__
 
 // Math macros
 #undef SQR
@@ -43,4 +43,59 @@
 #define TO_RAD(x) ((x) * 2 * M_PI / 360)
 #define TO_DEG(x) ((x) * 360 / 2 / M_PI)
 
+static inline int bmin(int a, int b) { return a < b ? a : b; }
+static inline float bmin(float a, float b) { return a < b ? a : b; }
+static inline double bmin(double a, double b) { return a < b ? a : b; }
+static inline int bmax(int a, int b) { return a > b ? a : b; }
+static inline float bmax(float a, float b) { return a > b ? a : b; }
+static inline double bmax(double a, double b) { return a > b ? a : b; }
+
+static inline int bclip(int &iv, int imn, int imx) {
+	return iv < imn ? imn : iv > imx ? imx : iv;
+}
+static inline float bclip(float &fv, float fmn, float fmx) {
+	return fv < fmn ? fmn : fv > fmx ? fmx : fv;
+}
+static inline double bclip(double &dv, double dmn, double dmx) {
+	return dv < dmn ? dmn : dv > dmx ? dmx : dv;
+}
+static inline void bclamp(int &iv, int imn, int imx) {
+	if( iv < imn ) iv = imn; else if( iv > imx ) iv = imx;
+}
+static inline void bclamp(float &fv, float fmn, float fmx) {
+	if( fv < fmn ) fv = fmn; else if( fv > fmx ) fv = fmx;
+}
+static inline void bclamp(double &dv, double dmn, double dmx) {
+	if( dv < dmn ) dv = dmn; else if( dv > dmx ) dv = dmx;
+}
+static inline void bc_rgb2yuv(float r, float g, float b, float &y, float &u, float &v)
+{ //bt601, jpeg, unclipped
+	y =  0.29900*r + 0.58700*g + 0.11400*b;
+	u = -0.16874*r - 0.33126*g + 0.50000*b + 0.5;
+	v =  0.50000*r - 0.41869*g - 0.08131*b + 0.5;
+}
+static inline void bc_rgb2yuv(int r, int g, int b, int &y, int &u, int &v, int max=255)
+{ // clipped
+	float mx = max, fr = r/mx, fg = g/mx, fb = b/mx, fy, fu, fv;
+	bc_rgb2yuv(fr,fg,fb, fy,fu,fv);
+	y = (int)(fy * mx + 0.5);  bclamp(y,0,max);
+	u = (int)(fu * mx + 0.5);  bclamp(u,0,max);
+	v = (int)(fv * mx + 0.5);  bclamp(v,0,max);
+}
+static inline void bc_yuv2rgb(float y, float u, float v, float &r, float &g, float &b)
+{ //bt601, jpeg, unclipped
+	r = y + 1.40200*v;
+	g = y - 0.34414*u - 0.71414*v;
+	b = y + 1.77200*u;
+}
+static inline void bc_yuv2rgb(int y, int u, int v, int &r, int &g, int &b, int max=255)
+{ // clipped
+	int ofs = (max + 1) / 2;
+	float mx = max, fy = y/mx, fu = (u-ofs)/mx, fv = (v-ofs)/mx, fr, fg, fb;
+	bc_yuv2rgb(fy,fu,fv, fr,fg,fb);
+	r = (int)(fr * mx + 0.5);  bclamp(r,0,max);
+	g = (int)(fg * mx + 0.5);  bclamp(g,0,max);
+	b = (int)(fb * mx + 0.5);  bclamp(b,0,max);
+}
+
 #endif