This file is indexed.

/usr/include/poppler/SplashOutputDev.h is in libpoppler-dev 0.18.4-1ubuntu2.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
//========================================================================
//
// SplashOutputDev.h
//
// Copyright 2003 Glyph & Cog, LLC
//
//========================================================================

//========================================================================
//
// Modified under the Poppler project - http://poppler.freedesktop.org
//
// All changes made under the Poppler project to this file are licensed
// under GPL version 2 or later
//
// Copyright (C) 2005 Takashi Iwai <tiwai@suse.de>
// Copyright (C) 2009-2011 Thomas Freitag <Thomas.Freitag@alfa.de>
// Copyright (C) 2009 Carlos Garcia Campos <carlosgc@gnome.org>
// Copyright (C) 2010 Christian Feuersänger <cfeuersaenger@googlemail.com>
// Copyright (C) 2011 Andreas Hartmetz <ahartmetz@gmail.com>
// Copyright (C) 2011 Andrea Canciani <ranma42@gmail.com>
// Copyright (C) 2011 Adrian Johnson <ajohnson@redneon.com>
//
// To see a description of the changes please see the Changelog file that
// came with your tarball or type make ChangeLog if you are building from git
//
//========================================================================

#ifndef SPLASHOUTPUTDEV_H
#define SPLASHOUTPUTDEV_H

#ifdef USE_GCC_PRAGMAS
#pragma interface
#endif

#include "goo/gtypes.h"
#include "splash/SplashTypes.h"
#include "splash/SplashPattern.h"
#include "poppler-config.h"
#include "OutputDev.h"
#include "GfxState.h"

class Gfx8BitFont;
class SplashBitmap;
class Splash;
class SplashPath;
class SplashFontEngine;
class SplashFont;
class T3FontCache;
struct T3FontCacheTag;
struct T3GlyphStack;
struct SplashTransparencyGroup;

//------------------------------------------------------------------------
// SplashOverprintColor
//------------------------------------------------------------------------

class SplashOverprintColor: public SplashPattern {
public:
  SplashOverprintColor(GfxColorSpace *colorSpace, SplashColorPtr colorA, Guchar tolerance);

  virtual SplashPattern *copy() { return new SplashOverprintColor(colorSpace, color, tolerance); }

  virtual ~SplashOverprintColor();

  virtual GBool getColor(int x, int y, SplashColorPtr c);

  virtual GBool testPosition(int x, int y) { return gFalse; }

  virtual GBool isStatic() { return gTrue; }

  virtual void overprint(GBool op, Guchar alphaSrc, SplashColorPtr colorSrc, 
                         Guchar alphaDest, SplashColorPtr colorDest, SplashColorPtr colorResult);

private:
  GfxColorSpace *colorSpace;
  SplashColor color;
  Guchar tolerance;
};

//------------------------------------------------------------------------
// Splash dynamic pattern
//------------------------------------------------------------------------

class SplashUnivariatePattern: public SplashPattern {
public:

  SplashUnivariatePattern(SplashColorMode colorMode, GfxState *state, GfxUnivariateShading *shading);

  virtual ~SplashUnivariatePattern();

  virtual GBool getColor(int x, int y, SplashColorPtr c);

  virtual GBool testPosition(int x, int y);

  virtual GBool isStatic() { return gFalse; }

  virtual GBool getParameter(double xs, double ys, double *t) = 0;

  virtual GfxUnivariateShading *getShading() { return shading; }

protected:
  Matrix ictm;
  double t0, t1, dt;
  GfxUnivariateShading *shading;
  GfxState *state;
  SplashColorMode colorMode;
};

class SplashAxialPattern: public SplashUnivariatePattern {
public:

  SplashAxialPattern(SplashColorMode colorMode, GfxState *state, GfxAxialShading *shading);

  virtual SplashPattern *copy() { return new SplashAxialPattern(colorMode, state, (GfxAxialShading *) shading); }

  virtual ~SplashAxialPattern();

  virtual GBool getParameter(double xs, double ys, double *t);

  virtual void overprint(GBool op, Guchar alphaSrc, SplashColorPtr colorSrc, 
                         Guchar alphaDest, SplashColorPtr colorDest, SplashColorPtr colorResult);

private:
  double x0, y0, x1, y1;
  double dx, dy, mul;
  SplashOverprintColor *opPattern;
};

// see GfxState.h, GfxGouraudTriangleShading
class SplashGouraudPattern: public SplashGouraudColor {
public:

  SplashGouraudPattern(GBool bDirectColorTranslation, GfxState *state, GfxGouraudTriangleShading *shading, SplashColorMode mode);

  virtual SplashPattern *copy() { return new SplashGouraudPattern(bDirectColorTranslation, state, shading, mode); }

  virtual ~SplashGouraudPattern();

  virtual GBool getColor(int x, int y, SplashColorPtr c) { return gFalse; }

  virtual GBool testPosition(int x, int y) { return gFalse; }

  virtual GBool isStatic() { return gFalse; }

  virtual GBool isParameterized() { return shading->isParameterized(); }
  virtual int getNTriangles() { return shading->getNTriangles(); }
  virtual  void getTriangle(int i, double *x0, double *y0, double *color0,
                            double *x1, double *y1, double *color1,
                            double *x2, double *y2, double *color2)
  { return shading->getTriangle(i, x0, y0, color0, x1, y1, color1, x2, y2, color2); }

  virtual void getParameterizedColor(double t, SplashColorMode mode, SplashColorPtr c);

  virtual void overprint(GBool op, Guchar alphaSrc, SplashColorPtr colorSrc, 
                         Guchar alphaDest, SplashColorPtr colorDest, SplashColorPtr colorResult);
private:
  GfxGouraudTriangleShading *shading;
  GfxState *state;
  GBool bDirectColorTranslation;
  SplashOverprintColor *opPattern;
  SplashColorMode mode;
};

// see GfxState.h, GfxRadialShading
class SplashRadialPattern: public SplashUnivariatePattern {
public:

  SplashRadialPattern(SplashColorMode colorMode, GfxState *state, GfxRadialShading *shading);

  virtual SplashPattern *copy() { return new SplashRadialPattern(colorMode, state, (GfxRadialShading *) shading); }

  virtual ~SplashRadialPattern();

  virtual GBool getParameter(double xs, double ys, double *t);

  virtual void overprint(GBool op, Guchar alphaSrc, SplashColorPtr colorSrc, 
                         Guchar alphaDest, SplashColorPtr colorDest, SplashColorPtr colorResult);

private:
  double x0, y0, r0, dx, dy, dr;
  double a, inva;
  SplashOverprintColor *opPattern;
};

//------------------------------------------------------------------------

// number of Type 3 fonts to cache
#define splashOutT3FontCacheSize 8

//------------------------------------------------------------------------
// SplashOutputDev
//------------------------------------------------------------------------

class SplashOutputDev: public OutputDev {
public:

  // Constructor.
  SplashOutputDev(SplashColorMode colorModeA, int bitmapRowPadA,
		  GBool reverseVideoA, SplashColorPtr paperColorA,
		  GBool bitmapTopDownA = gTrue,
		  GBool allowAntialiasA = gTrue);

  // Destructor.
  virtual ~SplashOutputDev();

  //----- get info about output device

  // Does this device use tilingPatternFill()?  If this returns false,
  // tiling pattern fills will be reduced to a series of other drawing
  // operations.
  virtual GBool useTilingPatternFill() { return gTrue; }

  // Does this device use functionShadedFill(), axialShadedFill(), and
  // radialShadedFill()?  If this returns false, these shaded fills
  // will be reduced to a series of other drawing operations.
  virtual GBool useShadedFills(int type)
  { return (type >= 2 && type <= 5) ? gTrue : gFalse; }

  // Does this device use upside-down coordinates?
  // (Upside-down means (0,0) is the top left corner of the page.)
  virtual GBool upsideDown() { return gTrue; }

  // Does this device use drawChar() or drawString()?
  virtual GBool useDrawChar() { return gTrue; }

  // Does this device use beginType3Char/endType3Char?  Otherwise,
  // text in Type 3 fonts will be drawn with drawChar/drawString.
  virtual GBool interpretType3Chars() { return gTrue; }

  // This device now supports text in pattern colorspace!
  virtual GBool supportTextCSPattern(GfxState *state)
  	{ return state->getFillColorSpace()->getMode() == csPattern; }

  //----- initialization and control

  // Start a page.
  virtual void startPage(int pageNum, GfxState *state);

  // End a page.
  virtual void endPage();

  //----- save/restore graphics state
  virtual void saveState(GfxState *state);
  virtual void restoreState(GfxState *state);

  //----- update graphics state
  virtual void updateAll(GfxState *state);
  virtual void updateCTM(GfxState *state, double m11, double m12,
			 double m21, double m22, double m31, double m32);
  virtual void updateLineDash(GfxState *state);
  virtual void updateFlatness(GfxState *state);
  virtual void updateLineJoin(GfxState *state);
  virtual void updateLineCap(GfxState *state);
  virtual void updateMiterLimit(GfxState *state);
  virtual void updateLineWidth(GfxState *state);
  virtual void updateStrokeAdjust(GfxState *state);
  virtual void updateFillColor(GfxState *state);
  virtual void updateStrokeColor(GfxState *state);
  virtual void updateBlendMode(GfxState *state);
  virtual void updateFillOpacity(GfxState *state);
  virtual void updateStrokeOpacity(GfxState *state);
  virtual void updateFillOverprint(GfxState *state);
  virtual void updateStrokeOverprint(GfxState *state);
  virtual void updateOverprintMode(GfxState *state);

  //----- update text state
  virtual void updateFont(GfxState *state);

  //----- path painting
  virtual void stroke(GfxState *state);
  virtual void fill(GfxState *state);
  virtual void eoFill(GfxState *state);
  virtual GBool tilingPatternFill(GfxState *state, Catalog *catalog, Object *str,
				  double *pmat, int paintType, int tilingType, Dict *resDict,
				  double *mat, double *bbox,
				  int x0, int y0, int x1, int y1,
				  double xStep, double yStep);
  virtual GBool axialShadedFill(GfxState *state, GfxAxialShading *shading, double tMin, double tMax);
  virtual GBool radialShadedFill(GfxState *state, GfxRadialShading *shading, double tMin, double tMax);
  virtual GBool gouraudTriangleShadedFill(GfxState *state, GfxGouraudTriangleShading *shading);

  //----- path clipping
  virtual void clip(GfxState *state);
  virtual void eoClip(GfxState *state);
  virtual void clipToStrokePath(GfxState *state);

  //----- text drawing
  virtual void drawChar(GfxState *state, double x, double y,
			double dx, double dy,
			double originX, double originY,
			CharCode code, int nBytes, Unicode *u, int uLen);
  virtual GBool beginType3Char(GfxState *state, double x, double y,
			       double dx, double dy,
			       CharCode code, Unicode *u, int uLen);
  virtual void endType3Char(GfxState *state);
  virtual void beginTextObject(GfxState *state);
  virtual GBool deviceHasTextClip(GfxState *state) { return textClipPath && haveCSPattern; }
  virtual void endTextObject(GfxState *state);

  //----- image drawing
  virtual void drawImageMask(GfxState *state, Object *ref, Stream *str,
			     int width, int height, GBool invert,
			     GBool interpolate, GBool inlineImg);
  virtual void drawImage(GfxState *state, Object *ref, Stream *str,
			 int width, int height, GfxImageColorMap *colorMap,
			 GBool interpolate, int *maskColors, GBool inlineImg);
  virtual void drawMaskedImage(GfxState *state, Object *ref, Stream *str,
			       int width, int height,
			       GfxImageColorMap *colorMap,
			       GBool interpolate,
			       Stream *maskStr, int maskWidth, int maskHeight,
			       GBool maskInvert, GBool maskInterpolate);
  virtual void drawSoftMaskedImage(GfxState *state, Object *ref, Stream *str,
				   int width, int height,
				   GfxImageColorMap *colorMap,
				   GBool interpolate,
				   Stream *maskStr,
				   int maskWidth, int maskHeight,
				   GfxImageColorMap *maskColorMap,
				   GBool maskInterpolate);
  // If current colorspace ist pattern,
  // need this device special handling for masks in pattern colorspace?
  // Default is false
  virtual GBool fillMaskCSPattern(GfxState * state)
  	{ return state->getFillColorSpace()->getMode() == csPattern; }
  virtual void endMaskClip(GfxState * /*state*/);

  //----- Type 3 font operators
  virtual void type3D0(GfxState *state, double wx, double wy);
  virtual void type3D1(GfxState *state, double wx, double wy,
		       double llx, double lly, double urx, double ury);

  //----- transparency groups and soft masks
  virtual void beginTransparencyGroup(GfxState *state, double *bbox,
				      GfxColorSpace *blendingColorSpace,
				      GBool isolated, GBool knockout,
				      GBool forSoftMask);
  virtual void endTransparencyGroup(GfxState *state);
  virtual void paintTransparencyGroup(GfxState *state, double *bbox);
  virtual void setSoftMask(GfxState *state, double *bbox, GBool alpha,
			   Function *transferFunc, GfxColor *backdropColor);
  virtual void clearSoftMask(GfxState *state);

  //----- special access

  // Called to indicate that a new PDF document has been loaded.
  void startDoc(XRef *xrefA);
 
  void setPaperColor(SplashColorPtr paperColorA);

  GBool isReverseVideo() { return reverseVideo; }
  void setReverseVideo(GBool reverseVideoA) { reverseVideo = reverseVideoA; }

  // Get the bitmap and its size.
  SplashBitmap *getBitmap() { return bitmap; }
  int getBitmapWidth();
  int getBitmapHeight();

  // Returns the last rasterized bitmap, transferring ownership to the
  // caller.
  SplashBitmap *takeBitmap();

  // Get the Splash object.
  Splash *getSplash() { return splash; }

  // Get the modified region.
  void getModRegion(int *xMin, int *yMin, int *xMax, int *yMax);

  // Clear the modified region.
  void clearModRegion();

  SplashFont *getCurrentFont() { return font; }

#if 1 //~tmp: turn off anti-aliasing temporarily
  virtual GBool getVectorAntialias();
  virtual void setVectorAntialias(GBool vaa);
#endif

  void setFreeTypeHinting(GBool enable, GBool enableSlightHinting);

private:
  GBool univariateShadedFill(GfxState *state, SplashUnivariatePattern *pattern, double tMin, double tMax);

  void setupScreenParams(double hDPI, double vDPI);
#if SPLASH_CMYK
  SplashPattern *getColor(GfxColorSpace *colorSpace, GfxGray gray, GfxRGB *rgb, GfxCMYK *cmyk);
#else
  SplashPattern *getColor(GfxGray gray, GfxRGB *rgb);
#endif
  SplashPath *convertPath(GfxState *state, GfxPath *path);
  void doUpdateFont(GfxState *state);
  void drawType3Glyph(T3FontCache *t3Font,
		      T3FontCacheTag *tag, Guchar *data);
  static GBool imageMaskSrc(void *data, SplashColorPtr line);
  static GBool imageSrc(void *data, SplashColorPtr colorLine,
			Guchar *alphaLine);
  static GBool alphaImageSrc(void *data, SplashColorPtr line,
			     Guchar *alphaLine);
  static GBool maskedImageSrc(void *data, SplashColorPtr line,
			      Guchar *alphaLine);
  static GBool tilingBitmapSrc(void *data, SplashColorPtr line,
			     Guchar *alphaLine);

  GBool haveCSPattern;		// set if text has been drawn with a
							//   clipping render mode because of pattern colorspace
  GBool keepAlphaChannel;	// don't fill with paper color, keep alpha channel

  SplashColorMode colorMode;
  int bitmapRowPad;
  GBool bitmapTopDown;
  GBool allowAntialias;
  GBool vectorAntialias;
  GBool enableFreeTypeHinting;
  GBool enableSlightHinting;
  GBool reverseVideo;		// reverse video mode
  SplashColor paperColor;	// paper color
  SplashScreenParams screenParams;

  XRef *xref;			// xref table for current document

  SplashBitmap *bitmap;
  Splash *splash;
  SplashFontEngine *fontEngine;

  T3FontCache *			// Type 3 font cache
    t3FontCache[splashOutT3FontCacheSize];
  int nT3Fonts;			// number of valid entries in t3FontCache
  T3GlyphStack *t3GlyphStack;	// Type 3 glyph context stack

  SplashFont *font;		// current font
  GBool needFontUpdate;		// set when the font needs to be updated
  SplashPath *textClipPath;	// clipping path built with text object

  SplashTransparencyGroup *	// transparency group stack
    transpGroupStack;
  SplashBitmap *maskBitmap; // for image masks in pattern colorspace
};

#endif