Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdegraphics@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 293 insertions, 0 deletions

diff --git a/kpdf/xpdf/splash/Splash.h b/kpdf/xpdf/splash/Splash.h
new file mode 100644
index 00000000..3c7571fb
--- /dev/null
+++ b/kpdf/xpdf/splash/Splash.h
@@ -0,0 +1,293 @@
+//========================================================================
+//
+// Splash.h
+//
+//========================================================================
+
+#ifndef SPLASH_H
+#define SPLASH_H
+
+#include <aconf.h>
+
+#ifdef USE_GCC_PRAGMAS
+#pragma interface
+#endif
+
+#include "SplashTypes.h"
+#include "SplashClip.h"
+
+class Splash;
+class SplashBitmap;
+struct SplashGlyphBitmap;
+class SplashState;
+class SplashPattern;
+class SplashScreen;
+class SplashPath;
+class SplashXPath;
+class SplashFont;
+struct SplashPipe;
+
+//------------------------------------------------------------------------
+
+// Retrieves the next line of pixels in an image mask.  Normally,
+// fills in *<line> and returns true.  If the image stream is
+// exhausted, returns false.
+typedef GBool (*SplashImageMaskSource)(void *data, SplashColorPtr pixel);
+
+// Retrieves the next line of pixels in an image.  Normally, fills in
+// *<line> and returns true.  If the image stream is exhausted,
+// returns false.
+typedef GBool (*SplashImageSource)(void *data, SplashColorPtr colorLine,
+				   Guchar *alphaLine);
+
+//------------------------------------------------------------------------
+
+enum SplashPipeResultColorCtrl {
+#if SPLASH_CMYK
+  splashPipeResultColorNoAlphaBlendCMYK,
+#endif
+  splashPipeResultColorNoAlphaBlendRGB,
+  splashPipeResultColorNoAlphaBlendMono,
+  splashPipeResultColorAlphaNoBlendMono,
+  splashPipeResultColorAlphaNoBlendRGB,
+#if SPLASH_CMYK
+  splashPipeResultColorAlphaNoBlendCMYK,
+#endif
+  splashPipeResultColorAlphaBlendMono,
+  splashPipeResultColorAlphaBlendRGB
+#if SPLASH_CMYK
+  ,
+  splashPipeResultColorAlphaBlendCMYK
+#endif
+};
+
+//------------------------------------------------------------------------
+// Splash
+//------------------------------------------------------------------------
+
+class Splash {
+public:
+
+  // Create a new rasterizer object.
+  Splash(SplashBitmap *bitmapA, GBool vectorAntialiasA,
+	 SplashScreenParams *screenParams = NULL);
+  Splash(SplashBitmap *bitmapA, GBool vectorAntialiasA,
+	 SplashScreen *screenA);
+
+  ~Splash();
+
+  //----- state read
+
+  SplashCoord *getMatrix();
+  SplashPattern *getStrokePattern();
+  SplashPattern *getFillPattern();
+  SplashScreen *getScreen();
+  SplashBlendFunc getBlendFunc();
+  SplashCoord getStrokeAlpha();
+  SplashCoord getFillAlpha();
+  SplashCoord getLineWidth();
+  int getLineCap();
+  int getLineJoin();
+  SplashCoord getMiterLimit();
+  SplashCoord getFlatness();
+  SplashCoord *getLineDash();
+  int getLineDashLength();
+  SplashCoord getLineDashPhase();
+  SplashClip *getClip();
+  SplashBitmap *getSoftMask();
+  GBool getInNonIsolatedGroup();
+
+  //----- state write
+
+  void setMatrix(SplashCoord *matrix);
+  void setStrokePattern(SplashPattern *strokeColor);
+  void setFillPattern(SplashPattern *fillColor);
+  void setScreen(SplashScreen *screen);
+  void setBlendFunc(SplashBlendFunc func);
+  void setStrokeAlpha(SplashCoord alpha);
+  void setFillAlpha(SplashCoord alpha);
+  void setLineWidth(SplashCoord lineWidth);
+  void setLineCap(int lineCap);
+  void setLineJoin(int lineJoin);
+  void setMiterLimit(SplashCoord miterLimit);
+  void setFlatness(SplashCoord flatness);
+  // the <lineDash> array will be copied
+  void setLineDash(SplashCoord *lineDash, int lineDashLength,
+		   SplashCoord lineDashPhase);
+  void setStrokeAdjust(GBool strokeAdjust);
+  // NB: uses transformed coordinates.
+  void clipResetToRect(SplashCoord x0, SplashCoord y0,
+		       SplashCoord x1, SplashCoord y1);
+  // NB: uses transformed coordinates.
+  SplashError clipToRect(SplashCoord x0, SplashCoord y0,
+			 SplashCoord x1, SplashCoord y1);
+  // NB: uses untransformed coordinates.
+  SplashError clipToPath(SplashPath *path, GBool eo);
+  void setSoftMask(SplashBitmap *softMask);
+  void setInNonIsolatedGroup(SplashBitmap *alpha0BitmapA,
+			     int alpha0XA, int alpha0YA);
+
+  //----- state save/restore
+
+  void saveState();
+  SplashError restoreState();
+
+  //----- drawing operations
+
+  // Fill the bitmap with <color>.  This is not subject to clipping.
+  void clear(SplashColorPtr color, Guchar alpha = 0x00);
+
+  // Stroke a path using the current stroke pattern.
+  SplashError stroke(SplashPath *path);
+
+  // Fill a path using the current fill pattern.
+  SplashError fill(SplashPath *path, GBool eo);
+
+  // Fill a path, XORing with the current fill pattern.
+  SplashError xorFill(SplashPath *path, GBool eo);
+
+  // Draw a character, using the current fill pattern.
+  SplashError fillChar(SplashCoord x, SplashCoord y, int c, SplashFont *font);
+
+  // Draw a glyph, using the current fill pattern.  This function does
+  // not free any data, i.e., it ignores glyph->freeData.
+  void fillGlyph(SplashCoord x, SplashCoord y,
+			SplashGlyphBitmap *glyph);
+
+  // Draws an image mask using the fill color.  This will read <h>
+  // lines of <w> pixels from <src>, starting with the top line.  "1"
+  // pixels will be drawn with the current fill color; "0" pixels are
+  // transparent.  The matrix:
+  //    [ mat[0] mat[1] 0 ]
+  //    [ mat[2] mat[3] 0 ]
+  //    [ mat[4] mat[5] 1 ]
+  // maps a unit square to the desired destination for the image, in
+  // PostScript style:
+  //    [x' y' 1] = [x y 1] * mat
+  // Note that the Splash y axis points downward, and the image source
+  // is assumed to produce pixels in raster order, starting from the
+  // top line.
+  SplashError fillImageMask(SplashImageMaskSource src, void *srcData,
+			    int w, int h, SplashCoord *mat,
+			    GBool glyphMode);
+
+  // Draw an image.  This will read <h> lines of <w> pixels from
+  // <src>, starting with the top line.  These pixels are assumed to
+  // be in the source mode, <srcMode>.  If <srcAlpha> is true, the
+  // alpha values returned by <src> are used; otherwise they are
+  // ignored.  The following combinations of source and target modes
+  // are supported:
+  //    source       target
+  //    ------       ------
+  //    Mono1        Mono1
+  //    Mono8        Mono1   -- with dithering
+  //    Mono8        Mono8
+  //    RGB8         RGB8
+  //    BGR8         BGR8
+  //    CMYK8        CMYK8
+  // The matrix behaves as for fillImageMask.
+  SplashError drawImage(SplashImageSource src, void *srcData,
+			SplashColorMode srcMode, GBool srcAlpha,
+			int w, int h, SplashCoord *mat);
+
+  // Composite a rectangular region from <src> onto this Splash
+  // object.
+  SplashError composite(SplashBitmap *src, int xSrc, int ySrc,
+			int xDest, int yDest, int w, int h,
+			GBool noClip, GBool nonIsolated);
+
+  // Composite this Splash object onto a background color.  The
+  // background alpha is assumed to be 1.
+  void compositeBackground(SplashColorPtr color);
+
+  // Copy a rectangular region from <src> onto the bitmap belonging to
+  // this Splash object.  The destination alpha values are all set to
+  // zero.
+  SplashError blitTransparent(SplashBitmap *src, int xSrc, int ySrc,
+			      int xDest, int yDest, int w, int h);
+
+  //----- misc
+
+  // Construct a path for a stroke, given the path to be stroked, and
+  // using the current line parameters.  If <flatten> is true, this
+  // function will first flatten the path and handle the linedash.
+  SplashPath *makeStrokePath(SplashPath *path, GBool flatten = gTrue);
+
+  // Return the associated bitmap.
+  SplashBitmap *getBitmap() { return bitmap; }
+
+  // Get a bounding box which includes all modifications since the
+  // last call to clearModRegion.
+  void getModRegion(int *xMin, int *yMin, int *xMax, int *yMax)
+    { *xMin = modXMin; *yMin = modYMin; *xMax = modXMax; *yMax = modYMax; }
+
+  // Clear the modified region bounding box.
+  void clearModRegion();
+
+  // Get clipping status for the last drawing operation subject to
+  // clipping.
+  SplashClipResult getClipRes() { return opClipRes; }
+
+  // Toggle debug mode on or off.
+  void setDebugMode(GBool debugModeA) { debugMode = debugModeA; }
+
+#if 1 //~tmp: turn off anti-aliasing temporarily
+  GBool getVectorAntialias() { return vectorAntialias; }
+  void setVectorAntialias(GBool vaa) { vectorAntialias = vaa; }
+#endif
+
+private:
+
+  void pipeInit(SplashPipe *pipe, int x, int y,
+		SplashPattern *pattern, SplashColorPtr cSrc,
+		SplashCoord aInput, GBool usesShape,
+		GBool nonIsolatedGroup);
+  void pipeRun(SplashPipe *pipe);
+  void pipeSetXY(SplashPipe *pipe, int x, int y);
+  void pipeIncX(SplashPipe *pipe);
+  void drawPixel(SplashPipe *pipe, int x, int y, GBool noClip);
+  void drawAAPixelInit();
+  void drawAAPixel(SplashPipe *pipe, int x, int y);
+  void drawSpan(SplashPipe *pipe, int x0, int x1, int y, GBool noClip);
+  void drawAALine(SplashPipe *pipe, int x0, int x1, int y);
+  void transform(SplashCoord *matrix, SplashCoord xi, SplashCoord yi,
+		 SplashCoord *xo, SplashCoord *yo);
+  void updateModX(int x);
+  void updateModY(int y);
+  void strokeNarrow(SplashPath *path);
+  void strokeWide(SplashPath *path);
+  SplashPath *flattenPath(SplashPath *path, SplashCoord *matrix,
+			  SplashCoord flatness);
+  void flattenCurve(SplashCoord x0, SplashCoord y0,
+		    SplashCoord x1, SplashCoord y1,
+		    SplashCoord x2, SplashCoord y2,
+		    SplashCoord x3, SplashCoord y3,
+		    SplashCoord *matrix, SplashCoord flatness2,
+		    SplashPath *fPath);
+  SplashPath *makeDashedPath(SplashPath *xPath);
+  SplashError fillWithPattern(SplashPath *path, GBool eo,
+			      SplashPattern *pattern, SplashCoord alpha);
+  void fillGlyph2(int x0, int y0, SplashGlyphBitmap *glyph, GBool noclip);
+  void dumpPath(SplashPath *path);
+  void dumpXPath(SplashXPath *path);
+
+  static SplashPipeResultColorCtrl pipeResultColorNoAlphaBlend[];
+  static SplashPipeResultColorCtrl pipeResultColorAlphaNoBlend[];
+  static SplashPipeResultColorCtrl pipeResultColorAlphaBlend[];
+  static int pipeNonIsoGroupCorrection[];
+
+  SplashBitmap *bitmap;
+  SplashState *state;
+  SplashBitmap *aaBuf;
+  int aaBufY;
+  SplashBitmap *alpha0Bitmap;	// for non-isolated groups, this is the
+				//   bitmap containing the alpha0 values
+  int alpha0X, alpha0Y;		// offset within alpha0Bitmap
+  SplashCoord aaGamma[splashAASize * splashAASize + 1];
+  int modXMin, modYMin, modXMax, modYMax;
+  SplashClipResult opClipRes;
+  GBool vectorAntialias;
+  GBool debugMode;
+};
+
+#endif