X-Git-Url: http://git.cinelerra-gg.org/git/?p=goodguy%2Fhistory.git;a=blobdiff_plain;f=cinelerra-5.1%2Fguicast%2Fclip.h;h=4246f2ecdb0c43d408d94b76c84c065f78a0c90e;hp=8a7d5c3b72284b9963fdeae59d76fae1d10cd5de;hb=77815ec03df6a03ed75433e8cf8ae1e83fb76d6e;hpb=5a1b2bb96f2bd6b7ef4f8031763683726c02219d

diff --git a/cinelerra-5.1/guicast/clip.h b/cinelerra-5.1/guicast/clip.h
index 8a7d5c3b..4246f2ec 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 +43,38 @@
 #define TO_RAD(x) ((x) * 2 * M_PI / 360)
 #define TO_DEG(x) ((x) * 360 / 2 / M_PI)
 
+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(int r, int g, int b, int &y, int &u, int &v, int max=255)
+{ //bt601, jpeg, unclipped
+	double mx = max, rr = r/mx, gg = g/mx, bb = b/mx;
+	y = (int)(( 0.29900*rr + 0.58700*gg + 0.11400*bb)       * mx + 0.5);
+	u = (int)((-0.16874*rr - 0.33126*gg + 0.50000*bb + 0.5) * mx + 0.5);
+	v = (int)(( 0.50000*rr - 0.41869*gg - 0.08131*bb + 0.5) * mx + 0.5);
+}
+static inline void bc_yuv2rgb(int y, int u, int v, int &r, int &g, int &b, int max=255)
+{
+	int ofs = (max + 1) / 2;
+	double mx = max, yy = y/mx, uu = (u-ofs)/mx, vv = (v-ofs)/mx;
+	r = (int)((yy + 1.40200*vv)              * mx + 0.5);
+	g = (int)((yy - 0.34414*uu - 0.71414*vv) * mx + 0.5);
+	b = (int)((yy + 1.77200*uu)              * mx + 0.5);
+}
+
 #endif