This file is indexed.

/usr/include/SFML/Graphics/Image.hpp is in libsfml-dev 2.3.2+dfsg-1.

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
////////////////////////////////////////////////////////////
//
// SFML - Simple and Fast Multimedia Library
// Copyright (C) 2007-2015 Laurent Gomila (laurent@sfml-dev.org)
//
// This software is provided 'as-is', without any express or implied warranty.
// In no event will the authors be held liable for any damages arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it freely,
// subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented;
//    you must not claim that you wrote the original software.
//    If you use this software in a product, an acknowledgment
//    in the product documentation would be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such,
//    and must not be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source distribution.
//
////////////////////////////////////////////////////////////

#ifndef SFML_IMAGE_HPP
#define SFML_IMAGE_HPP

////////////////////////////////////////////////////////////
// Headers
////////////////////////////////////////////////////////////
#include <SFML/Graphics/Export.hpp>
#include <SFML/Graphics/Color.hpp>
#include <SFML/Graphics/Rect.hpp>
#include <string>
#include <vector>


namespace sf
{
class InputStream;

////////////////////////////////////////////////////////////
/// \brief Class for loading, manipulating and saving images
///
////////////////////////////////////////////////////////////
class SFML_GRAPHICS_API Image
{
public:

    ////////////////////////////////////////////////////////////
    /// \brief Default constructor
    ///
    /// Creates an empty image.
    ///
    ////////////////////////////////////////////////////////////
    Image();

    ////////////////////////////////////////////////////////////
    /// \brief Destructor
    ///
    ////////////////////////////////////////////////////////////
    ~Image();

    ////////////////////////////////////////////////////////////
    /// \brief Create the image and fill it with a unique color
    ///
    /// \param width  Width of the image
    /// \param height Height of the image
    /// \param color  Fill color
    ///
    ////////////////////////////////////////////////////////////
    void create(unsigned int width, unsigned int height, const Color& color = Color(0, 0, 0));

    ////////////////////////////////////////////////////////////
    /// \brief Create the image from an array of pixels
    ///
    /// The \a pixel array is assumed to contain 32-bits RGBA pixels,
    /// and have the given \a width and \a height. If not, this is
    /// an undefined behavior.
    /// If \a pixels is null, an empty image is created.
    ///
    /// \param width  Width of the image
    /// \param height Height of the image
    /// \param pixels Array of pixels to copy to the image
    ///
    ////////////////////////////////////////////////////////////
    void create(unsigned int width, unsigned int height, const Uint8* pixels);

    ////////////////////////////////////////////////////////////
    /// \brief Load the image from a file on disk
    ///
    /// The supported image formats are bmp, png, tga, jpg, gif,
    /// psd, hdr and pic. Some format options are not supported,
    /// like progressive jpeg.
    /// If this function fails, the image is left unchanged.
    ///
    /// \param filename Path of the image file to load
    ///
    /// \return True if loading was successful
    ///
    /// \see loadFromMemory, loadFromStream, saveToFile
    ///
    ////////////////////////////////////////////////////////////
    bool loadFromFile(const std::string& filename);

    ////////////////////////////////////////////////////////////
    /// \brief Load the image from a file in memory
    ///
    /// The supported image formats are bmp, png, tga, jpg, gif,
    /// psd, hdr and pic. Some format options are not supported,
    /// like progressive jpeg.
    /// If this function fails, the image is left unchanged.
    ///
    /// \param data Pointer to the file data in memory
    /// \param size Size of the data to load, in bytes
    ///
    /// \return True if loading was successful
    ///
    /// \see loadFromFile, loadFromStream
    ///
    ////////////////////////////////////////////////////////////
    bool loadFromMemory(const void* data, std::size_t size);

    ////////////////////////////////////////////////////////////
    /// \brief Load the image from a custom stream
    ///
    /// The supported image formats are bmp, png, tga, jpg, gif,
    /// psd, hdr and pic. Some format options are not supported,
    /// like progressive jpeg.
    /// If this function fails, the image is left unchanged.
    ///
    /// \param stream Source stream to read from
    ///
    /// \return True if loading was successful
    ///
    /// \see loadFromFile, loadFromMemory
    ///
    ////////////////////////////////////////////////////////////
    bool loadFromStream(InputStream& stream);

    ////////////////////////////////////////////////////////////
    /// \brief Save the image to a file on disk
    ///
    /// The format of the image is automatically deduced from
    /// the extension. The supported image formats are bmp, png,
    /// tga and jpg. The destination file is overwritten
    /// if it already exists. This function fails if the image is empty.
    ///
    /// \param filename Path of the file to save
    ///
    /// \return True if saving was successful
    ///
    /// \see create, loadFromFile, loadFromMemory
    ///
    ////////////////////////////////////////////////////////////
    bool saveToFile(const std::string& filename) const;

    ////////////////////////////////////////////////////////////
    /// \brief Return the size (width and height) of the image
    ///
    /// \return Size of the image, in pixels
    ///
    ////////////////////////////////////////////////////////////
    Vector2u getSize() const;

    ////////////////////////////////////////////////////////////
    /// \brief Create a transparency mask from a specified color-key
    ///
    /// This function sets the alpha value of every pixel matching
    /// the given color to \a alpha (0 by default), so that they
    /// become transparent.
    ///
    /// \param color Color to make transparent
    /// \param alpha Alpha value to assign to transparent pixels
    ///
    ////////////////////////////////////////////////////////////
    void createMaskFromColor(const Color& color, Uint8 alpha = 0);

    ////////////////////////////////////////////////////////////
    /// \brief Copy pixels from another image onto this one
    ///
    /// This function does a slow pixel copy and should not be
    /// used intensively. It can be used to prepare a complex
    /// static image from several others, but if you need this
    /// kind of feature in real-time you'd better use sf::RenderTexture.
    ///
    /// If \a sourceRect is empty, the whole image is copied.
    /// If \a applyAlpha is set to true, the transparency of
    /// source pixels is applied. If it is false, the pixels are
    /// copied unchanged with their alpha value.
    ///
    /// \param source     Source image to copy
    /// \param destX      X coordinate of the destination position
    /// \param destY      Y coordinate of the destination position
    /// \param sourceRect Sub-rectangle of the source image to copy
    /// \param applyAlpha Should the copy take into account the source transparency?
    ///
    ////////////////////////////////////////////////////////////
    void copy(const Image& source, unsigned int destX, unsigned int destY, const IntRect& sourceRect = IntRect(0, 0, 0, 0), bool applyAlpha = false);

    ////////////////////////////////////////////////////////////
    /// \brief Change the color of a pixel
    ///
    /// This function doesn't check the validity of the pixel
    /// coordinates, using out-of-range values will result in
    /// an undefined behavior.
    ///
    /// \param x     X coordinate of pixel to change
    /// \param y     Y coordinate of pixel to change
    /// \param color New color of the pixel
    ///
    /// \see getPixel
    ///
    ////////////////////////////////////////////////////////////
    void setPixel(unsigned int x, unsigned int y, const Color& color);

    ////////////////////////////////////////////////////////////
    /// \brief Get the color of a pixel
    ///
    /// This function doesn't check the validity of the pixel
    /// coordinates, using out-of-range values will result in
    /// an undefined behavior.
    ///
    /// \param x X coordinate of pixel to get
    /// \param y Y coordinate of pixel to get
    ///
    /// \return Color of the pixel at coordinates (x, y)
    ///
    /// \see setPixel
    ///
    ////////////////////////////////////////////////////////////
    Color getPixel(unsigned int x, unsigned int y) const;

    ////////////////////////////////////////////////////////////
    /// \brief Get a read-only pointer to the array of pixels
    ///
    /// The returned value points to an array of RGBA pixels made of
    /// 8 bits integers components. The size of the array is
    /// width * height * 4 (getSize().x * getSize().y * 4).
    /// Warning: the returned pointer may become invalid if you
    /// modify the image, so you should never store it for too long.
    /// If the image is empty, a null pointer is returned.
    ///
    /// \return Read-only pointer to the array of pixels
    ///
    ////////////////////////////////////////////////////////////
    const Uint8* getPixelsPtr() const;

    ////////////////////////////////////////////////////////////
    /// \brief Flip the image horizontally (left <-> right)
    ///
    ////////////////////////////////////////////////////////////
    void flipHorizontally();

    ////////////////////////////////////////////////////////////
    /// \brief Flip the image vertically (top <-> bottom)
    ///
    ////////////////////////////////////////////////////////////
    void flipVertically();

private:

    ////////////////////////////////////////////////////////////
    // Member data
    ////////////////////////////////////////////////////////////
    Vector2u           m_size;   ///< Image size
    std::vector<Uint8> m_pixels; ///< Pixels of the image
    #ifdef SFML_SYSTEM_ANDROID
    void*              m_stream; ///< Asset file streamer (if loaded from file)
    #endif
};

} // namespace sf


#endif // SFML_IMAGE_HPP


////////////////////////////////////////////////////////////
/// \class sf::Image
/// \ingroup graphics
///
/// sf::Image is an abstraction to manipulate images
/// as bidimensional arrays of pixels. The class provides
/// functions to load, read, write and save pixels, as well
/// as many other useful functions.
///
/// sf::Image can handle a unique internal representation of
/// pixels, which is RGBA 32 bits. This means that a pixel
/// must be composed of 8 bits red, green, blue and alpha
/// channels -- just like a sf::Color.
/// All the functions that return an array of pixels follow
/// this rule, and all parameters that you pass to sf::Image
/// functions (such as loadFromMemory) must use this
/// representation as well.
///
/// A sf::Image can be copied, but it is a heavy resource and
/// if possible you should always use [const] references to
/// pass or return them to avoid useless copies.
///
/// Usage example:
/// \code
/// // Load an image file from a file
/// sf::Image background;
/// if (!background.loadFromFile("background.jpg"))
///     return -1;
///
/// // Create a 20x20 image filled with black color
/// sf::Image image;
/// image.create(20, 20, sf::Color::Black);
///
/// // Copy image1 on image2 at position (10, 10)
/// image.copy(background, 10, 10);
///
/// // Make the top-left pixel transparent
/// sf::Color color = image.getPixel(0, 0);
/// color.a = 0;
/// image.setPixel(0, 0, color);
///
/// // Save the image to a file
/// if (!image.saveToFile("result.png"))
///     return -1;
/// \endcode
///
/// \see sf::Texture
///
////////////////////////////////////////////////////////////