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authorPeter Breitenlohner <peb@mppmu.mpg.de>2009-03-20 07:45:16 +0000
committerPeter Breitenlohner <peb@mppmu.mpg.de>2009-03-20 07:45:16 +0000
commit9c241c5d2d9413361d32567876c35b2b9e2754c9 (patch)
tree754aab0f779c0c574897fb6bd6f67f9d722c9ac2 /Build/source/libs/xpdf/xpdf-3.02/splash/SplashScreen.h
parent207e0fee56e671a0913674ee3f71701bb9d84768 (diff)
new build system
git-svn-id: svn://tug.org/texlive/trunk@12446 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/libs/xpdf/xpdf-3.02/splash/SplashScreen.h')
-rw-r--r--Build/source/libs/xpdf/xpdf-3.02/splash/SplashScreen.h56
1 files changed, 56 insertions, 0 deletions
diff --git a/Build/source/libs/xpdf/xpdf-3.02/splash/SplashScreen.h b/Build/source/libs/xpdf/xpdf-3.02/splash/SplashScreen.h
new file mode 100644
index 00000000000..2baa9b5d73b
--- /dev/null
+++ b/Build/source/libs/xpdf/xpdf-3.02/splash/SplashScreen.h
@@ -0,0 +1,56 @@
+//========================================================================
+//
+// SplashScreen.h
+//
+//========================================================================
+
+#ifndef SPLASHSCREEN_H
+#define SPLASHSCREEN_H
+
+#include <aconf.h>
+
+#ifdef USE_GCC_PRAGMAS
+#pragma interface
+#endif
+
+#include "SplashTypes.h"
+
+//------------------------------------------------------------------------
+// SplashScreen
+//------------------------------------------------------------------------
+
+class SplashScreen {
+public:
+
+ SplashScreen(SplashScreenParams *params);
+ SplashScreen(SplashScreen *screen);
+ ~SplashScreen();
+
+ SplashScreen *copy() { return new SplashScreen(this); }
+
+ // Return the computed pixel value (0=black, 1=white) for the gray
+ // level <value> at (<x>, <y>).
+ int test(int x, int y, Guchar value);
+
+ // Returns true if value is above the white threshold or below the
+ // black threshold, i.e., if the corresponding halftone will be
+ // solid white or black.
+ GBool isStatic(Guchar value);
+
+private:
+
+ void buildDispersedMatrix(int i, int j, int val,
+ int delta, int offset);
+ void buildClusteredMatrix();
+ int distance(int x0, int y0, int x1, int y1);
+ void buildSCDMatrix(int r);
+
+ Guchar *mat; // threshold matrix
+ int size; // size of the threshold matrix
+ Guchar minVal; // any pixel value below minVal generates
+ // solid black
+ Guchar maxVal; // any pixel value above maxVal generates
+ // solid white
+};
+
+#endif