| File: | _build/../cdk-pixbuf/cdk-pixbuf.c |
| Warning: | line 471, column 38 Casting a non-structure type to a structure type and accessing a field can lead to memory access errors or data corruption |
Press '?' to see keyboard shortcuts
Keyboard shortcuts:
| 1 | /* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*- */ |
| 2 | /* CdkPixbuf library - Basic memory management |
| 3 | * |
| 4 | * Copyright (C) 1999 The Free Software Foundation |
| 5 | * |
| 6 | * Authors: Mark Crichton <crichton@gimp.org> |
| 7 | * Miguel de Icaza <miguel@gnu.org> |
| 8 | * Federico Mena-Quintero <federico@gimp.org> |
| 9 | * |
| 10 | * This library is free software; you can redistribute it and/or |
| 11 | * modify it under the terms of the GNU Lesser General Public |
| 12 | * License as published by the Free Software Foundation; either |
| 13 | * version 2 of the License, or (at your option) any later version. |
| 14 | * |
| 15 | * This library is distributed in the hope that it will be useful, |
| 16 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 17 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 18 | * Lesser General Public License for more details. |
| 19 | * |
| 20 | * You should have received a copy of the GNU Lesser General Public |
| 21 | * License along with this library; if not, see <http://www.gnu.org/licenses/>. |
| 22 | */ |
| 23 | |
| 24 | /** |
| 25 | * CdkPixbuf: |
| 26 | * |
| 27 | * A pixel buffer. |
| 28 | * |
| 29 | * `CdkPixbuf` contains information about an image's pixel data, |
| 30 | * its color space, bits per sample, width and height, and the |
| 31 | * rowstride (the number of bytes between the start of one row |
| 32 | * and the start of the next). |
| 33 | * |
| 34 | * ## Creating new `CdkPixbuf` |
| 35 | * |
| 36 | * The most basic way to create a pixbuf is to wrap an existing pixel |
| 37 | * buffer with a [class@CdkPixbuf.Pixbuf] instance. You can use the |
| 38 | * [`ctor@CdkPixbuf.Pixbuf.new_from_data`] function to do this. |
| 39 | * |
| 40 | * Every time you create a new `CdkPixbuf` instance for some data, you |
| 41 | * will need to specify the destroy notification function that will be |
| 42 | * called when the data buffer needs to be freed; this will happen when |
| 43 | * a `CdkPixbuf` is finalized by the reference counting functions. If |
| 44 | * you have a chunk of static data compiled into your application, you |
| 45 | * can pass in `NULL` as the destroy notification function so that the |
| 46 | * data will not be freed. |
| 47 | * |
| 48 | * The [`ctor@CdkPixbuf.Pixbuf.new`] constructor function can be used |
| 49 | * as a convenience to create a pixbuf with an empty buffer; this is |
| 50 | * equivalent to allocating a data buffer using `malloc()` and then |
| 51 | * wrapping it with `cdk_pixbuf_new_from_data()`. The `cdk_pixbuf_new()` |
| 52 | * function will compute an optimal rowstride so that rendering can be |
| 53 | * performed with an efficient algorithm. |
| 54 | * |
| 55 | * You can also copy an existing pixbuf with the [method@Pixbuf.copy] |
| 56 | * function. This is not the same as just acquiring a reference to |
| 57 | * the old pixbuf instance: the copy function will actually duplicate |
| 58 | * the pixel data in memory and create a new [class@Pixbuf] instance |
| 59 | * for it. |
| 60 | * |
| 61 | * ## Reference counting |
| 62 | * |
| 63 | * `CdkPixbuf` structures are reference counted. This means that an |
| 64 | * application can share a single pixbuf among many parts of the |
| 65 | * code. When a piece of the program needs to use a pixbuf, it should |
| 66 | * acquire a reference to it by calling `g_object_ref()`; when it no |
| 67 | * longer needs the pixbuf, it should release the reference it acquired |
| 68 | * by calling `g_object_unref()`. The resources associated with a |
| 69 | * `CdkPixbuf` will be freed when its reference count drops to zero. |
| 70 | * Newly-created `CdkPixbuf` instances start with a reference count |
| 71 | * of one. |
| 72 | * |
| 73 | * ## Image Data |
| 74 | * |
| 75 | * Image data in a pixbuf is stored in memory in an uncompressed, |
| 76 | * packed format. Rows in the image are stored top to bottom, and |
| 77 | * in each row pixels are stored from left to right. |
| 78 | * |
| 79 | * There may be padding at the end of a row. |
| 80 | * |
| 81 | * The "rowstride" value of a pixbuf, as returned by [`method@CdkPixbuf.Pixbuf.get_rowstride`], |
| 82 | * indicates the number of bytes between rows. |
| 83 | * |
| 84 | * **NOTE**: If you are copying raw pixbuf data with `memcpy()` note that the |
| 85 | * last row in the pixbuf may not be as wide as the full rowstride, but rather |
| 86 | * just as wide as the pixel data needs to be; that is: it is unsafe to do |
| 87 | * `memcpy (dest, pixels, rowstride * height)` to copy a whole pixbuf. Use |
| 88 | * [method@CdkPixbuf.Pixbuf.copy] instead, or compute the width in bytes of the |
| 89 | * last row as: |
| 90 | * |
| 91 | * ```c |
| 92 | * last_row = width * ((n_channels * bits_per_sample + 7) / 8); |
| 93 | * ``` |
| 94 | * |
| 95 | * The same rule applies when iterating over each row of a `CdkPixbuf` pixels |
| 96 | * array. |
| 97 | * |
| 98 | * The following code illustrates a simple `put_pixel()` |
| 99 | * function for RGB pixbufs with 8 bits per channel with an alpha |
| 100 | * channel. |
| 101 | * |
| 102 | * ```c |
| 103 | * static void |
| 104 | * put_pixel (CdkPixbuf *pixbuf, |
| 105 | * int x, |
| 106 | * int y, |
| 107 | * guchar red, |
| 108 | * guchar green, |
| 109 | * guchar blue, |
| 110 | * guchar alpha) |
| 111 | * { |
| 112 | * int n_channels = cdk_pixbuf_get_n_channels (pixbuf); |
| 113 | * |
| 114 | * // Ensure that the pixbuf is valid |
| 115 | * g_assert (cdk_pixbuf_get_colorspace (pixbuf) == CDK_COLORSPACE_RGB); |
| 116 | * g_assert (cdk_pixbuf_get_bits_per_sample (pixbuf) == 8); |
| 117 | * g_assert (cdk_pixbuf_get_has_alpha (pixbuf)); |
| 118 | * g_assert (n_channels == 4); |
| 119 | * |
| 120 | * int width = cdk_pixbuf_get_width (pixbuf); |
| 121 | * int height = cdk_pixbuf_get_height (pixbuf); |
| 122 | * |
| 123 | * // Ensure that the coordinates are in a valid range |
| 124 | * g_assert (x >= 0 && x < width); |
| 125 | * g_assert (y >= 0 && y < height); |
| 126 | * |
| 127 | * int rowstride = cdk_pixbuf_get_rowstride (pixbuf); |
| 128 | * |
| 129 | * // The pixel buffer in the CdkPixbuf instance |
| 130 | * guchar *pixels = cdk_pixbuf_get_pixels (pixbuf); |
| 131 | * |
| 132 | * // The pixel we wish to modify |
| 133 | * guchar *p = pixels + y * rowstride + x * n_channels; |
| 134 | * p[0] = red; |
| 135 | * p[1] = green; |
| 136 | * p[2] = blue; |
| 137 | * p[3] = alpha; |
| 138 | * } |
| 139 | * ``` |
| 140 | * |
| 141 | * ## Loading images |
| 142 | * |
| 143 | * The `CdkPixBuf` class provides a simple mechanism for loading |
| 144 | * an image from a file in synchronous and asynchronous fashion. |
| 145 | * |
| 146 | * For GUI applications, it is recommended to use the asynchronous |
| 147 | * stream API to avoid blocking the control flow of the application. |
| 148 | * |
| 149 | * Additionally, `CdkPixbuf` provides the [class@CdkPixbuf.PixbufLoader`] |
| 150 | * API for progressive image loading. |
| 151 | * |
| 152 | * ## Saving images |
| 153 | * |
| 154 | * The `CdkPixbuf` class provides methods for saving image data in |
| 155 | * a number of file formats. The formatted data can be written to a |
| 156 | * file or to a memory buffer. `CdkPixbuf` can also call a user-defined |
| 157 | * callback on the data, which allows to e.g. write the image |
| 158 | * to a socket or store it in a database. |
| 159 | */ |
| 160 | |
| 161 | #include "config.h" |
| 162 | |
| 163 | #include <math.h> |
| 164 | #include <stdlib.h> |
| 165 | #include <string.h> |
| 166 | |
| 167 | #define CDK_PIXBUF_C_COMPILATION |
| 168 | #include "cdk-pixbuf-private.h" |
| 169 | #include "cdk-pixbuf-features.h" |
| 170 | #include "cdk-pixbuf-enum-types.h" |
| 171 | |
| 172 | /* Include the marshallers */ |
| 173 | #include <glib-object.h> |
| 174 | #include <gio/gio.h> |
| 175 | #include "cdk-pixbuf-marshal.h" |
| 176 | |
| 177 | static void cdk_pixbuf_finalize (GObject *object); |
| 178 | static void cdk_pixbuf_set_property (GObject *object, |
| 179 | guint prop_id, |
| 180 | const GValue *value, |
| 181 | GParamSpec *pspec); |
| 182 | static void cdk_pixbuf_get_property (GObject *object, |
| 183 | guint prop_id, |
| 184 | GValue *value, |
| 185 | GParamSpec *pspec); |
| 186 | static void cdk_pixbuf_constructed (GObject *object); |
| 187 | |
| 188 | |
| 189 | enum |
| 190 | { |
| 191 | PROP_0, |
| 192 | PROP_COLORSPACE, |
| 193 | PROP_N_CHANNELS, |
| 194 | PROP_HAS_ALPHA, |
| 195 | PROP_BITS_PER_SAMPLE, |
| 196 | PROP_WIDTH, |
| 197 | PROP_HEIGHT, |
| 198 | PROP_ROWSTRIDE, |
| 199 | PROP_PIXELS, |
| 200 | PROP_PIXEL_BYTES |
| 201 | }; |
| 202 | |
| 203 | static void cdk_pixbuf_icon_iface_init (GIconIface *iface); |
| 204 | static void cdk_pixbuf_loadable_icon_iface_init (GLoadableIconIface *iface); |
| 205 | |
| 206 | G_DEFINE_TYPE_WITH_CODE (CdkPixbuf, cdk_pixbuf, G_TYPE_OBJECT,static void cdk_pixbuf_init (CdkPixbuf *self); static void cdk_pixbuf_class_init (CdkPixbufClass *klass); static GType cdk_pixbuf_get_type_once (void); static gpointer cdk_pixbuf_parent_class = ((void*)0) ; static gint CdkPixbuf_private_offset; static void cdk_pixbuf_class_intern_init (gpointer klass) { cdk_pixbuf_parent_class = g_type_class_peek_parent (klass); if (CdkPixbuf_private_offset != 0) g_type_class_adjust_private_offset (klass, &CdkPixbuf_private_offset); cdk_pixbuf_class_init ((CdkPixbufClass*) klass); } __attribute__ ((__unused__)) static inline gpointer cdk_pixbuf_get_instance_private (CdkPixbuf * self) { return (((gpointer) ((guint8*) (self) + (glong) (CdkPixbuf_private_offset )))); } GType cdk_pixbuf_get_type (void) { static GType static_g_define_type_id = 0; if ((__extension__ ({ _Static_assert (sizeof *(&static_g_define_type_id ) == sizeof (gpointer), "Expression evaluates to false"); (void ) (0 ? (gpointer) * (&static_g_define_type_id) : ((void*) 0)); (!(__extension__ ({ _Static_assert (sizeof *(&static_g_define_type_id ) == sizeof (gpointer), "Expression evaluates to false"); __typeof__ (*(&static_g_define_type_id)) gapg_temp_newval; __typeof__ ((&static_g_define_type_id)) gapg_temp_atomic = (&static_g_define_type_id ); __atomic_load (gapg_temp_atomic, &gapg_temp_newval, 5) ; gapg_temp_newval; })) && g_once_init_enter_pointer ( &static_g_define_type_id)); })) ) { GType g_define_type_id = cdk_pixbuf_get_type_once (); (__extension__ ({ _Static_assert (sizeof *(&static_g_define_type_id) == sizeof (gpointer) , "Expression evaluates to false"); 0 ? (void) (*(&static_g_define_type_id ) = (g_define_type_id)) : (void) 0; g_once_init_leave_pointer ((&static_g_define_type_id), (gpointer) (guintptr) (g_define_type_id )); })) ; } return static_g_define_type_id; } __attribute__ ( (__noinline__)) static GType cdk_pixbuf_get_type_once (void) { GType g_define_type_id = g_type_register_static_simple (((GType ) ((20) << (2))), g_intern_static_string ("CdkPixbuf"), sizeof (CdkPixbufClass), (GClassInitFunc)(void (*)(void)) cdk_pixbuf_class_intern_init , sizeof (CdkPixbuf), (GInstanceInitFunc)(void (*)(void)) cdk_pixbuf_init , (GTypeFlags) 0); { {{ const GInterfaceInfo g_implement_interface_info = { (GInterfaceInitFunc)(void (*)(void)) cdk_pixbuf_icon_iface_init , ((void*)0), ((void*)0) }; g_type_add_interface_static (g_define_type_id , (g_icon_get_type ()), &g_implement_interface_info); } { const GInterfaceInfo g_implement_interface_info = { (GInterfaceInitFunc )(void (*)(void)) cdk_pixbuf_loadable_icon_iface_init, ((void *)0), ((void*)0) }; g_type_add_interface_static (g_define_type_id , (g_loadable_icon_get_type ()), &g_implement_interface_info ); };} } return g_define_type_id; } |
| 207 | G_IMPLEMENT_INTERFACE (G_TYPE_ICON, cdk_pixbuf_icon_iface_init)static void cdk_pixbuf_init (CdkPixbuf *self); static void cdk_pixbuf_class_init (CdkPixbufClass *klass); static GType cdk_pixbuf_get_type_once (void); static gpointer cdk_pixbuf_parent_class = ((void*)0) ; static gint CdkPixbuf_private_offset; static void cdk_pixbuf_class_intern_init (gpointer klass) { cdk_pixbuf_parent_class = g_type_class_peek_parent (klass); if (CdkPixbuf_private_offset != 0) g_type_class_adjust_private_offset (klass, &CdkPixbuf_private_offset); cdk_pixbuf_class_init ((CdkPixbufClass*) klass); } __attribute__ ((__unused__)) static inline gpointer cdk_pixbuf_get_instance_private (CdkPixbuf * self) { return (((gpointer) ((guint8*) (self) + (glong) (CdkPixbuf_private_offset )))); } GType cdk_pixbuf_get_type (void) { static GType static_g_define_type_id = 0; if ((__extension__ ({ _Static_assert (sizeof *(&static_g_define_type_id ) == sizeof (gpointer), "Expression evaluates to false"); (void ) (0 ? (gpointer) * (&static_g_define_type_id) : ((void*) 0)); (!(__extension__ ({ _Static_assert (sizeof *(&static_g_define_type_id ) == sizeof (gpointer), "Expression evaluates to false"); __typeof__ (*(&static_g_define_type_id)) gapg_temp_newval; __typeof__ ((&static_g_define_type_id)) gapg_temp_atomic = (&static_g_define_type_id ); __atomic_load (gapg_temp_atomic, &gapg_temp_newval, 5) ; gapg_temp_newval; })) && g_once_init_enter_pointer ( &static_g_define_type_id)); })) ) { GType g_define_type_id = cdk_pixbuf_get_type_once (); (__extension__ ({ _Static_assert (sizeof *(&static_g_define_type_id) == sizeof (gpointer) , "Expression evaluates to false"); 0 ? (void) (*(&static_g_define_type_id ) = (g_define_type_id)) : (void) 0; g_once_init_leave_pointer ((&static_g_define_type_id), (gpointer) (guintptr) (g_define_type_id )); })) ; } return static_g_define_type_id; } __attribute__ ( (__noinline__)) static GType cdk_pixbuf_get_type_once (void) { GType g_define_type_id = g_type_register_static_simple (((GType ) ((20) << (2))), g_intern_static_string ("CdkPixbuf"), sizeof (CdkPixbufClass), (GClassInitFunc)(void (*)(void)) cdk_pixbuf_class_intern_init , sizeof (CdkPixbuf), (GInstanceInitFunc)(void (*)(void)) cdk_pixbuf_init , (GTypeFlags) 0); { {{ const GInterfaceInfo g_implement_interface_info = { (GInterfaceInitFunc)(void (*)(void)) cdk_pixbuf_icon_iface_init , ((void*)0), ((void*)0) }; g_type_add_interface_static (g_define_type_id , (g_icon_get_type ()), &g_implement_interface_info); } { const GInterfaceInfo g_implement_interface_info = { (GInterfaceInitFunc )(void (*)(void)) cdk_pixbuf_loadable_icon_iface_init, ((void *)0), ((void*)0) }; g_type_add_interface_static (g_define_type_id , (g_loadable_icon_get_type ()), &g_implement_interface_info ); };} } return g_define_type_id; } |
| 208 | G_IMPLEMENT_INTERFACE (G_TYPE_LOADABLE_ICON, cdk_pixbuf_loadable_icon_iface_init))static void cdk_pixbuf_init (CdkPixbuf *self); static void cdk_pixbuf_class_init (CdkPixbufClass *klass); static GType cdk_pixbuf_get_type_once (void); static gpointer cdk_pixbuf_parent_class = ((void*)0) ; static gint CdkPixbuf_private_offset; static void cdk_pixbuf_class_intern_init (gpointer klass) { cdk_pixbuf_parent_class = g_type_class_peek_parent (klass); if (CdkPixbuf_private_offset != 0) g_type_class_adjust_private_offset (klass, &CdkPixbuf_private_offset); cdk_pixbuf_class_init ((CdkPixbufClass*) klass); } __attribute__ ((__unused__)) static inline gpointer cdk_pixbuf_get_instance_private (CdkPixbuf * self) { return (((gpointer) ((guint8*) (self) + (glong) (CdkPixbuf_private_offset )))); } GType cdk_pixbuf_get_type (void) { static GType static_g_define_type_id = 0; if ((__extension__ ({ _Static_assert (sizeof *(&static_g_define_type_id ) == sizeof (gpointer), "Expression evaluates to false"); (void ) (0 ? (gpointer) * (&static_g_define_type_id) : ((void*) 0)); (!(__extension__ ({ _Static_assert (sizeof *(&static_g_define_type_id ) == sizeof (gpointer), "Expression evaluates to false"); __typeof__ (*(&static_g_define_type_id)) gapg_temp_newval; __typeof__ ((&static_g_define_type_id)) gapg_temp_atomic = (&static_g_define_type_id ); __atomic_load (gapg_temp_atomic, &gapg_temp_newval, 5) ; gapg_temp_newval; })) && g_once_init_enter_pointer ( &static_g_define_type_id)); })) ) { GType g_define_type_id = cdk_pixbuf_get_type_once (); (__extension__ ({ _Static_assert (sizeof *(&static_g_define_type_id) == sizeof (gpointer) , "Expression evaluates to false"); 0 ? (void) (*(&static_g_define_type_id ) = (g_define_type_id)) : (void) 0; g_once_init_leave_pointer ((&static_g_define_type_id), (gpointer) (guintptr) (g_define_type_id )); })) ; } return static_g_define_type_id; } __attribute__ ( (__noinline__)) static GType cdk_pixbuf_get_type_once (void) { GType g_define_type_id = g_type_register_static_simple (((GType ) ((20) << (2))), g_intern_static_string ("CdkPixbuf"), sizeof (CdkPixbufClass), (GClassInitFunc)(void (*)(void)) cdk_pixbuf_class_intern_init , sizeof (CdkPixbuf), (GInstanceInitFunc)(void (*)(void)) cdk_pixbuf_init , (GTypeFlags) 0); { {{ const GInterfaceInfo g_implement_interface_info = { (GInterfaceInitFunc)(void (*)(void)) cdk_pixbuf_icon_iface_init , ((void*)0), ((void*)0) }; g_type_add_interface_static (g_define_type_id , (g_icon_get_type ()), &g_implement_interface_info); } { const GInterfaceInfo g_implement_interface_info = { (GInterfaceInitFunc )(void (*)(void)) cdk_pixbuf_loadable_icon_iface_init, ((void *)0), ((void*)0) }; g_type_add_interface_static (g_define_type_id , (g_loadable_icon_get_type ()), &g_implement_interface_info ); };} } return g_define_type_id; } |
| 209 | |
| 210 | static void |
| 211 | cdk_pixbuf_init (CdkPixbuf *pixbuf) |
| 212 | { |
| 213 | pixbuf->colorspace = CDK_COLORSPACE_RGB; |
| 214 | pixbuf->n_channels = 3; |
| 215 | pixbuf->bits_per_sample = 8; |
| 216 | pixbuf->has_alpha = FALSE(0); |
| 217 | pixbuf->storage = STORAGE_UNINITIALIZED; |
| 218 | } |
| 219 | |
| 220 | static void |
| 221 | cdk_pixbuf_class_init (CdkPixbufClass *klass) |
| 222 | { |
| 223 | GObjectClass *object_class = G_OBJECT_CLASS (klass)((((GObjectClass*) (void *) ((klass))))); |
| 224 | |
| 225 | _cdk_pixbuf_init_gettext (); |
| 226 | |
| 227 | object_class->finalize = cdk_pixbuf_finalize; |
| 228 | object_class->set_property = cdk_pixbuf_set_property; |
| 229 | object_class->get_property = cdk_pixbuf_get_property; |
| 230 | object_class->constructed = cdk_pixbuf_constructed; |
| 231 | |
| 232 | #define PIXBUF_PARAM_FLAGS(G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_NAME | G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB ) (G_PARAM_READWRITE | \ |
| 233 | G_PARAM_CONSTRUCT_ONLY | \ |
| 234 | G_PARAM_EXPLICIT_NOTIFY | \ |
| 235 | G_PARAM_STATIC_NAME | \ |
| 236 | G_PARAM_STATIC_NICK | \ |
| 237 | G_PARAM_STATIC_BLURB) |
| 238 | /** |
| 239 | * CdkPixbuf:n-channels: |
| 240 | * |
| 241 | * The number of samples per pixel. |
| 242 | * |
| 243 | * Currently, only 3 or 4 samples per pixel are supported. |
| 244 | */ |
| 245 | g_object_class_install_property (object_class, |
| 246 | PROP_N_CHANNELS, |
| 247 | g_param_spec_int ("n-channels", |
| 248 | _("Number of Channels")((char *) g_dgettext ("cdk-pixbuf", "Number of Channels")), |
| 249 | _("The number of samples per pixel")((char *) g_dgettext ("cdk-pixbuf", "The number of samples per pixel" )), |
| 250 | 0, |
| 251 | G_MAXINT2147483647, |
| 252 | 3, |
| 253 | PIXBUF_PARAM_FLAGS(G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_NAME | G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB ))); |
| 254 | /** |
| 255 | * CdkPixbuf:colorspace: |
| 256 | * |
| 257 | * The color space of the pixbuf. |
| 258 | * |
| 259 | * Currently, only `CDK_COLORSPACE_RGB` is supported. |
| 260 | */ |
| 261 | g_object_class_install_property (object_class, |
| 262 | PROP_COLORSPACE, |
| 263 | g_param_spec_enum ("colorspace", |
| 264 | _("Colorspace")((char *) g_dgettext ("cdk-pixbuf", "Colorspace")), |
| 265 | _("The colorspace in which the samples are interpreted")((char *) g_dgettext ("cdk-pixbuf", "The colorspace in which the samples are interpreted" )), |
| 266 | CDK_TYPE_COLORSPACE(cdk_colorspace_get_type ()), |
| 267 | CDK_COLORSPACE_RGB, |
| 268 | PIXBUF_PARAM_FLAGS(G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_NAME | G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB ))); |
| 269 | /** |
| 270 | * CdkPixbuf:has-alpha: |
| 271 | * |
| 272 | * Whether the pixbuf has an alpha channel. |
| 273 | */ |
| 274 | g_object_class_install_property (object_class, |
| 275 | PROP_HAS_ALPHA, |
| 276 | g_param_spec_boolean ("has-alpha", |
| 277 | _("Has Alpha")((char *) g_dgettext ("cdk-pixbuf", "Has Alpha")), |
| 278 | _("Whether the pixbuf has an alpha channel")((char *) g_dgettext ("cdk-pixbuf", "Whether the pixbuf has an alpha channel" )), |
| 279 | FALSE(0), |
| 280 | PIXBUF_PARAM_FLAGS(G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_NAME | G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB ))); |
| 281 | /** |
| 282 | * CdkPixbuf:bits-per-sample: |
| 283 | * |
| 284 | * The number of bits per sample. |
| 285 | * |
| 286 | * Currently only 8 bit per sample are supported. |
| 287 | */ |
| 288 | g_object_class_install_property (object_class, |
| 289 | PROP_BITS_PER_SAMPLE, |
| 290 | g_param_spec_int ("bits-per-sample", |
| 291 | _("Bits per Sample")((char *) g_dgettext ("cdk-pixbuf", "Bits per Sample")), |
| 292 | _("The number of bits per sample")((char *) g_dgettext ("cdk-pixbuf", "The number of bits per sample" )), |
| 293 | 1, |
| 294 | 16, |
| 295 | 8, |
| 296 | PIXBUF_PARAM_FLAGS(G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_NAME | G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB ))); |
| 297 | /** |
| 298 | * CdkPixbuf:width: |
| 299 | * |
| 300 | * The number of columns of the pixbuf. |
| 301 | */ |
| 302 | g_object_class_install_property (object_class, |
| 303 | PROP_WIDTH, |
| 304 | g_param_spec_int ("width", |
| 305 | _("Width")((char *) g_dgettext ("cdk-pixbuf", "Width")), |
| 306 | _("The number of columns of the pixbuf")((char *) g_dgettext ("cdk-pixbuf", "The number of columns of the pixbuf" )), |
| 307 | 1, |
| 308 | G_MAXINT2147483647, |
| 309 | 1, |
| 310 | PIXBUF_PARAM_FLAGS(G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_NAME | G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB ))); |
| 311 | /** |
| 312 | * CdkPixbuf:height: |
| 313 | * |
| 314 | * The number of rows of the pixbuf. |
| 315 | */ |
| 316 | g_object_class_install_property (object_class, |
| 317 | PROP_HEIGHT, |
| 318 | g_param_spec_int ("height", |
| 319 | _("Height")((char *) g_dgettext ("cdk-pixbuf", "Height")), |
| 320 | _("The number of rows of the pixbuf")((char *) g_dgettext ("cdk-pixbuf", "The number of rows of the pixbuf" )), |
| 321 | 1, |
| 322 | G_MAXINT2147483647, |
| 323 | 1, |
| 324 | PIXBUF_PARAM_FLAGS(G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_NAME | G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB ))); |
| 325 | /** |
| 326 | * CdkPixbuf:rowstride: |
| 327 | * |
| 328 | * The number of bytes between the start of a row and |
| 329 | * the start of the next row. |
| 330 | * |
| 331 | * This number must (obviously) be at least as large as the |
| 332 | * width of the pixbuf. |
| 333 | */ |
| 334 | g_object_class_install_property (object_class, |
| 335 | PROP_ROWSTRIDE, |
| 336 | g_param_spec_int ("rowstride", |
| 337 | _("Rowstride")((char *) g_dgettext ("cdk-pixbuf", "Rowstride")), |
| 338 | _("The number of bytes between the start of a row and the start of the next row")((char *) g_dgettext ("cdk-pixbuf", "The number of bytes between the start of a row and the start of the next row" )), |
| 339 | 1, |
| 340 | G_MAXINT2147483647, |
| 341 | 1, |
| 342 | PIXBUF_PARAM_FLAGS(G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_NAME | G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB ))); |
| 343 | /** |
| 344 | * CdkPixbuf:pixels: |
| 345 | * |
| 346 | * A pointer to the pixel data of the pixbuf. |
| 347 | */ |
| 348 | g_object_class_install_property (object_class, |
| 349 | PROP_PIXELS, |
| 350 | g_param_spec_pointer ("pixels", |
| 351 | _("Pixels")((char *) g_dgettext ("cdk-pixbuf", "Pixels")), |
| 352 | _("A pointer to the pixel data of the pixbuf")((char *) g_dgettext ("cdk-pixbuf", "A pointer to the pixel data of the pixbuf" )), |
| 353 | PIXBUF_PARAM_FLAGS(G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_NAME | G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB ))); |
| 354 | /** |
| 355 | * CdkPixbuf::pixel-bytes: |
| 356 | * |
| 357 | * If set, this pixbuf was created from read-only #GBytes. |
| 358 | * |
| 359 | * Replaces CdkPixbuf::pixels. |
| 360 | * |
| 361 | * Since: 2.32 |
| 362 | */ |
| 363 | g_object_class_install_property (object_class, |
| 364 | PROP_PIXEL_BYTES, |
| 365 | g_param_spec_boxed ("pixel-bytes", |
| 366 | _("Pixel Bytes")((char *) g_dgettext ("cdk-pixbuf", "Pixel Bytes")), |
| 367 | _("Readonly pixel data")((char *) g_dgettext ("cdk-pixbuf", "Readonly pixel data")), |
| 368 | G_TYPE_BYTES(g_bytes_get_type ()), |
| 369 | PIXBUF_PARAM_FLAGS(G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_EXPLICIT_NOTIFY | G_PARAM_STATIC_NAME | G_PARAM_STATIC_NICK | G_PARAM_STATIC_BLURB ))); |
| 370 | } |
| 371 | |
| 372 | static void |
| 373 | free_pixels (CdkPixbuf *pixbuf) |
| 374 | { |
| 375 | g_assert (pixbuf->storage == STORAGE_PIXELS)do { if (__builtin_expect (__extension__ ({ int _g_boolean_var_49 = 0; if (pixbuf->storage == STORAGE_PIXELS) _g_boolean_var_49 = 1; _g_boolean_var_49; }), 1)) ; else g_assertion_message_expr ("CdkPixbuf", "../cdk-pixbuf/cdk-pixbuf.c", 375, ((const char *) (__func__)), "pixbuf->storage == STORAGE_PIXELS"); } while (0); |
| 376 | |
| 377 | if (pixbuf->s.pixels.pixels && pixbuf->s.pixels.destroy_fn) { |
| 378 | (* pixbuf->s.pixels.destroy_fn) (pixbuf->s.pixels.pixels, pixbuf->s.pixels.destroy_fn_data); |
| 379 | } |
| 380 | |
| 381 | pixbuf->s.pixels.pixels = NULL((void*)0); |
| 382 | } |
| 383 | |
| 384 | static void |
| 385 | free_bytes (CdkPixbuf *pixbuf) |
| 386 | { |
| 387 | g_assert (pixbuf->storage == STORAGE_BYTES)do { if (__builtin_expect (__extension__ ({ int _g_boolean_var_50 = 0; if (pixbuf->storage == STORAGE_BYTES) _g_boolean_var_50 = 1; _g_boolean_var_50; }), 1)) ; else g_assertion_message_expr ("CdkPixbuf", "../cdk-pixbuf/cdk-pixbuf.c", 387, ((const char *) (__func__)), "pixbuf->storage == STORAGE_BYTES"); } while (0); |
| 388 | |
| 389 | g_clear_pointer (&pixbuf->s.bytes.bytes, g_bytes_unref)do { _Static_assert (sizeof *(&pixbuf->s.bytes.bytes) == sizeof (gpointer), "Expression evaluates to false"); __typeof__ ((&pixbuf->s.bytes.bytes)) _pp = (&pixbuf->s.bytes .bytes); __typeof__ (*(&pixbuf->s.bytes.bytes)) _ptr = *_pp; *_pp = ((void*)0); if (_ptr) (g_bytes_unref) (_ptr); } while (0); |
| 390 | } |
| 391 | |
| 392 | static void |
| 393 | cdk_pixbuf_finalize (GObject *object) |
| 394 | { |
| 395 | CdkPixbuf *pixbuf = CDK_PIXBUF (object)((((CdkPixbuf*) (void *) ((object))))); |
| 396 | |
| 397 | switch (pixbuf->storage) { |
| 398 | case STORAGE_PIXELS: |
| 399 | free_pixels (pixbuf); |
| 400 | break; |
| 401 | |
| 402 | case STORAGE_BYTES: |
| 403 | free_bytes (pixbuf); |
| 404 | break; |
| 405 | |
| 406 | default: |
| 407 | g_assert_not_reached ()do { g_assertion_message_expr ("CdkPixbuf", "../cdk-pixbuf/cdk-pixbuf.c" , 407, ((const char*) (__func__)), ((void*)0)); } while (0); |
| 408 | } |
| 409 | |
| 410 | G_OBJECT_CLASS (cdk_pixbuf_parent_class)((((GObjectClass*) (void *) ((cdk_pixbuf_parent_class)))))->finalize (object); |
| 411 | } |
| 412 | |
| 413 | |
| 414 | /** |
| 415 | * cdk_pixbuf_ref: (skip) |
| 416 | * @pixbuf: A pixbuf. |
| 417 | * |
| 418 | * Adds a reference to a pixbuf. |
| 419 | * |
| 420 | * Return value: The same as the @pixbuf argument. |
| 421 | * |
| 422 | * Deprecated: 2.0: Use g_object_ref(). |
| 423 | **/ |
| 424 | CdkPixbuf * |
| 425 | cdk_pixbuf_ref (CdkPixbuf *pixbuf) |
| 426 | { |
| 427 | return (CdkPixbuf *) g_object_ref (pixbuf)((__typeof__ (pixbuf)) (g_object_ref) (pixbuf)); |
| 428 | } |
| 429 | |
| 430 | /** |
| 431 | * cdk_pixbuf_unref: (skip) |
| 432 | * @pixbuf: A pixbuf. |
| 433 | * |
| 434 | * Removes a reference from a pixbuf. |
| 435 | * |
| 436 | * Deprecated: 2.0: Use g_object_unref(). |
| 437 | **/ |
| 438 | void |
| 439 | cdk_pixbuf_unref (CdkPixbuf *pixbuf) |
| 440 | { |
| 441 | g_object_unref (pixbuf); |
| 442 | } |
| 443 | |
| 444 | static GBytes * |
| 445 | cdk_pixbuf_make_bytes (CdkPixbuf *pixbuf, |
| 446 | GError **error) |
| 447 | { |
| 448 | gchar *buffer; |
| 449 | gsize size; |
| 450 | |
| 451 | if (!cdk_pixbuf_save_to_buffer (pixbuf, &buffer, &size, "png", error, NULL((void*)0))) |
| 452 | return NULL((void*)0); |
| 453 | |
| 454 | return g_bytes_new_take (buffer, size); |
| 455 | } |
| 456 | |
| 457 | static GVariant * |
| 458 | cdk_pixbuf_serialize (GIcon *icon) |
| 459 | { |
| 460 | GError *error = NULL((void*)0); |
| 461 | GVariant *result; |
| 462 | GBytes *bytes; |
| 463 | |
| 464 | bytes = cdk_pixbuf_make_bytes (CDK_PIXBUF (icon)((((CdkPixbuf*) (void *) ((icon))))), &error); |
| 465 | if (!bytes) |
| 466 | { |
| 467 | g_critical ("Unable to serialise CdkPixbuf to png (via g_icon_serialize()): %s", error->message); |
| 468 | g_error_free (error); |
| 469 | return NULL((void*)0); |
| 470 | } |
| 471 | result = g_variant_new_from_bytes (G_VARIANT_TYPE_BYTESTRING((const GVariantType *) "ay"), bytes, TRUE(!(0))); |
Casting a non-structure type to a structure type and accessing a field can lead to memory access errors or data corruption | |
| 472 | g_bytes_unref (bytes); |
| 473 | |
| 474 | return g_variant_new ("(sv)", "bytes", result); |
| 475 | } |
| 476 | |
| 477 | static GInputStream * |
| 478 | cdk_pixbuf_load (GLoadableIcon *icon, |
| 479 | int size, |
| 480 | char **type, |
| 481 | GCancellable *cancellable, |
| 482 | GError **error) |
| 483 | { |
| 484 | GInputStream *stream; |
| 485 | GBytes *bytes; |
| 486 | |
| 487 | bytes = cdk_pixbuf_make_bytes (CDK_PIXBUF (icon)((((CdkPixbuf*) (void *) ((icon))))), error); |
| 488 | if (!bytes) |
| 489 | return NULL((void*)0); |
| 490 | |
| 491 | stream = g_memory_input_stream_new_from_bytes (bytes); |
| 492 | g_bytes_unref (bytes); |
| 493 | |
| 494 | if (type) |
| 495 | *type = g_strdup ("image/png")g_strdup_inline ("image/png"); |
| 496 | |
| 497 | return stream; |
| 498 | } |
| 499 | |
| 500 | static void |
| 501 | cdk_pixbuf_load_async (GLoadableIcon *icon, |
| 502 | int size, |
| 503 | GCancellable *cancellable, |
| 504 | GAsyncReadyCallback callback, |
| 505 | gpointer user_data) |
| 506 | { |
| 507 | GTask *task; |
| 508 | |
| 509 | task = g_task_new (icon, cancellable, callback, user_data); |
| 510 | g_task_return_pointer (task, icon, NULL((void*)0)); |
| 511 | g_object_unref (task); |
| 512 | } |
| 513 | |
| 514 | static GInputStream * |
| 515 | cdk_pixbuf_load_finish (GLoadableIcon *icon, |
| 516 | GAsyncResult *res, |
| 517 | char **type, |
| 518 | GError **error) |
| 519 | { |
| 520 | g_return_val_if_fail (g_task_is_valid (res, icon), NULL)do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_51 = 0; if (g_task_is_valid (res, icon)) _g_boolean_var_51 = 1; _g_boolean_var_51; }), 1))) { } else { g_return_if_fail_warning ("CdkPixbuf", ((const char*) (__func__)), "g_task_is_valid (res, icon)" ); return (((void*)0)); } } while (0); |
| 521 | |
| 522 | if (!g_task_propagate_pointer (G_TASK (res)((((GTask*) (void *) ((res))))), error)) |
| 523 | return NULL((void*)0); |
| 524 | |
| 525 | return cdk_pixbuf_load (icon, 0, type, NULL((void*)0), error); |
| 526 | } |
| 527 | |
| 528 | static void |
| 529 | cdk_pixbuf_loadable_icon_iface_init (GLoadableIconIface *iface) |
| 530 | { |
| 531 | iface->load = cdk_pixbuf_load; |
| 532 | |
| 533 | /* In theory encoding a png could be time-consuming but we're talking |
| 534 | * about icons here, so assume it's probably going to be OK and handle |
| 535 | * the async variant of the call in-thread instead of having the |
| 536 | * default implementation dispatch it to a worker. |
| 537 | */ |
| 538 | iface->load_async = cdk_pixbuf_load_async; |
| 539 | iface->load_finish = cdk_pixbuf_load_finish; |
| 540 | } |
| 541 | |
| 542 | static void |
| 543 | cdk_pixbuf_icon_iface_init (GIconIface *iface) |
| 544 | { |
| 545 | iface->hash = (guint (*) (GIcon *)) g_direct_hash; |
| 546 | iface->equal = (gboolean (*) (GIcon *, GIcon *)) g_direct_equal; |
| 547 | iface->serialize = cdk_pixbuf_serialize; |
| 548 | } |
| 549 | |
| 550 | /* Used as the destroy notification function for cdk_pixbuf_new() */ |
| 551 | static void |
| 552 | free_buffer (guchar *pixels, gpointer data) |
| 553 | { |
| 554 | g_free (pixels); |
| 555 | } |
| 556 | |
| 557 | /** |
| 558 | * cdk_pixbuf_calculate_rowstride: |
| 559 | * @colorspace: Color space for image |
| 560 | * @has_alpha: Whether the image should have transparency information |
| 561 | * @bits_per_sample: Number of bits per color sample |
| 562 | * @width: Width of image in pixels, must be > 0 |
| 563 | * @height: Height of image in pixels, must be > 0 |
| 564 | * |
| 565 | * Calculates the rowstride that an image created with those values would |
| 566 | * have. |
| 567 | * |
| 568 | * This function is useful for front-ends and backends that want to check |
| 569 | * image values without needing to create a `CdkPixbuf`. |
| 570 | * |
| 571 | * Return value: the rowstride for the given values, or -1 in case of error. |
| 572 | * |
| 573 | * Since: 2.36.8 |
| 574 | */ |
| 575 | gint |
| 576 | cdk_pixbuf_calculate_rowstride (CdkColorspace colorspace, |
| 577 | gboolean has_alpha, |
| 578 | int bits_per_sample, |
| 579 | int width, |
| 580 | int height) |
| 581 | { |
| 582 | unsigned int channels; |
| 583 | |
| 584 | g_return_val_if_fail (colorspace == CDK_COLORSPACE_RGB, -1)do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_52 = 0; if (colorspace == CDK_COLORSPACE_RGB) _g_boolean_var_52 = 1; _g_boolean_var_52; }), 1))) { } else { g_return_if_fail_warning ("CdkPixbuf", ((const char*) (__func__)), "colorspace == CDK_COLORSPACE_RGB" ); return (-1); } } while (0); |
| 585 | g_return_val_if_fail (bits_per_sample == 8, -1)do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_53 = 0; if (bits_per_sample == 8) _g_boolean_var_53 = 1; _g_boolean_var_53 ; }), 1))) { } else { g_return_if_fail_warning ("CdkPixbuf", ( (const char*) (__func__)), "bits_per_sample == 8"); return (- 1); } } while (0); |
| 586 | g_return_val_if_fail (width > 0, -1)do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_54 = 0; if (width > 0) _g_boolean_var_54 = 1; _g_boolean_var_54 ; }), 1))) { } else { g_return_if_fail_warning ("CdkPixbuf", ( (const char*) (__func__)), "width > 0"); return (-1); } } while (0); |
| 587 | g_return_val_if_fail (height > 0, -1)do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_55 = 0; if (height > 0) _g_boolean_var_55 = 1; _g_boolean_var_55 ; }), 1))) { } else { g_return_if_fail_warning ("CdkPixbuf", ( (const char*) (__func__)), "height > 0"); return (-1); } } while (0); |
| 588 | |
| 589 | channels = has_alpha ? 4 : 3; |
| 590 | |
| 591 | /* Overflow? */ |
| 592 | if (width > (G_MAXINT2147483647 - 3) / channels) |
| 593 | return -1; |
| 594 | |
| 595 | /* Always align rows to 32-bit boundaries */ |
| 596 | return (width * channels + 3) & ~3; |
| 597 | } |
| 598 | |
| 599 | /** |
| 600 | * cdk_pixbuf_new: |
| 601 | * @colorspace: Color space for image |
| 602 | * @has_alpha: Whether the image should have transparency information |
| 603 | * @bits_per_sample: Number of bits per color sample |
| 604 | * @width: Width of image in pixels, must be > 0 |
| 605 | * @height: Height of image in pixels, must be > 0 |
| 606 | * |
| 607 | * Creates a new `CdkPixbuf` structure and allocates a buffer for it. |
| 608 | * |
| 609 | * If the allocation of the buffer failed, this function will return `NULL`. |
| 610 | * |
| 611 | * The buffer has an optimal rowstride. Note that the buffer is not cleared; |
| 612 | * you will have to fill it completely yourself. |
| 613 | * |
| 614 | * Return value: (transfer full) (nullable): A newly-created pixel buffer |
| 615 | **/ |
| 616 | CdkPixbuf * |
| 617 | cdk_pixbuf_new (CdkColorspace colorspace, |
| 618 | gboolean has_alpha, |
| 619 | int bits_per_sample, |
| 620 | int width, |
| 621 | int height) |
| 622 | { |
| 623 | guchar *buf; |
| 624 | int rowstride; |
| 625 | |
| 626 | rowstride = cdk_pixbuf_calculate_rowstride (colorspace, |
| 627 | has_alpha, |
| 628 | bits_per_sample, |
| 629 | width, |
| 630 | height); |
| 631 | if (rowstride <= 0) |
| 632 | return NULL((void*)0); |
| 633 | |
| 634 | buf = g_try_malloc0_n (height, rowstride); |
| 635 | if (!buf) |
| 636 | return NULL((void*)0); |
| 637 | |
| 638 | return cdk_pixbuf_new_from_data (buf, colorspace, has_alpha, bits_per_sample, |
| 639 | width, height, rowstride, |
| 640 | free_buffer, NULL((void*)0)); |
| 641 | } |
| 642 | |
| 643 | /** |
| 644 | * cdk_pixbuf_copy: |
| 645 | * @pixbuf: A pixbuf. |
| 646 | * |
| 647 | * Creates a new `CdkPixbuf` with a copy of the information in the specified |
| 648 | * `pixbuf`. |
| 649 | * |
| 650 | * Note that this does not copy the options set on the original `CdkPixbuf`, |
| 651 | * use cdk_pixbuf_copy_options() for this. |
| 652 | * |
| 653 | * Return value: (nullable) (transfer full): A newly-created pixbuf |
| 654 | **/ |
| 655 | CdkPixbuf * |
| 656 | cdk_pixbuf_copy (const CdkPixbuf *pixbuf) |
| 657 | { |
| 658 | guchar *buf; |
| 659 | int size; |
| 660 | |
| 661 | g_return_val_if_fail (CDK_IS_PIXBUF (pixbuf), NULL)do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_56 = 0; if ((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((pixbuf)); GType __t = ((cdk_pixbuf_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; }))))) _g_boolean_var_56 = 1; _g_boolean_var_56; }), 1))) { } else { g_return_if_fail_warning ("CdkPixbuf", ((const char*) (__func__)), "CDK_IS_PIXBUF (pixbuf)" ); return (((void*)0)); } } while (0); |
| 662 | |
| 663 | /* Calculate a semi-exact size. Here we copy with full rowstrides; |
| 664 | * maybe we should copy each row individually with the minimum |
| 665 | * rowstride? |
| 666 | */ |
| 667 | |
| 668 | size = cdk_pixbuf_get_byte_length (pixbuf); |
| 669 | |
| 670 | buf = g_try_malloc (size); |
| 671 | if (!buf) |
| 672 | return NULL((void*)0); |
| 673 | |
| 674 | memcpy (buf, cdk_pixbuf_read_pixels (pixbuf), size); |
| 675 | |
| 676 | return cdk_pixbuf_new_from_data (buf, |
| 677 | pixbuf->colorspace, pixbuf->has_alpha, |
| 678 | pixbuf->bits_per_sample, |
| 679 | pixbuf->width, pixbuf->height, |
| 680 | pixbuf->rowstride, |
| 681 | free_buffer, |
| 682 | NULL((void*)0)); |
| 683 | } |
| 684 | |
| 685 | /** |
| 686 | * cdk_pixbuf_new_subpixbuf: |
| 687 | * @src_pixbuf: a `CdkPixbuf` |
| 688 | * @src_x: X coord in @src_pixbuf |
| 689 | * @src_y: Y coord in @src_pixbuf |
| 690 | * @width: width of region in @src_pixbuf |
| 691 | * @height: height of region in @src_pixbuf |
| 692 | * |
| 693 | * Creates a new pixbuf which represents a sub-region of `src_pixbuf`. |
| 694 | * |
| 695 | * The new pixbuf shares its pixels with the original pixbuf, so |
| 696 | * writing to one affects both. The new pixbuf holds a reference to |
| 697 | * `src_pixbuf`, so `src_pixbuf` will not be finalized until the new |
| 698 | * pixbuf is finalized. |
| 699 | * |
| 700 | * Note that if `src_pixbuf` is read-only, this function will force it |
| 701 | * to be mutable. |
| 702 | * |
| 703 | * Return value: (transfer full): a new pixbuf |
| 704 | **/ |
| 705 | CdkPixbuf* |
| 706 | cdk_pixbuf_new_subpixbuf (CdkPixbuf *src_pixbuf, |
| 707 | int src_x, |
| 708 | int src_y, |
| 709 | int width, |
| 710 | int height) |
| 711 | { |
| 712 | guchar *pixels; |
| 713 | CdkPixbuf *sub; |
| 714 | |
| 715 | g_return_val_if_fail (CDK_IS_PIXBUF (src_pixbuf), NULL)do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_57 = 0; if ((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((src_pixbuf)); GType __t = ((cdk_pixbuf_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; }))))) _g_boolean_var_57 = 1; _g_boolean_var_57; }), 1))) { } else { g_return_if_fail_warning ("CdkPixbuf", ((const char*) (__func__)), "CDK_IS_PIXBUF (src_pixbuf)" ); return (((void*)0)); } } while (0); |
| 716 | g_return_val_if_fail (src_x >= 0 && src_x + width <= src_pixbuf->width, NULL)do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_58 = 0; if (src_x >= 0 && src_x + width <= src_pixbuf ->width) _g_boolean_var_58 = 1; _g_boolean_var_58; }), 1)) ) { } else { g_return_if_fail_warning ("CdkPixbuf", ((const char *) (__func__)), "src_x >= 0 && src_x + width <= src_pixbuf->width" ); return (((void*)0)); } } while (0); |
| 717 | g_return_val_if_fail (src_y >= 0 && src_y + height <= src_pixbuf->height, NULL)do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_59 = 0; if (src_y >= 0 && src_y + height <= src_pixbuf ->height) _g_boolean_var_59 = 1; _g_boolean_var_59; }), 1) )) { } else { g_return_if_fail_warning ("CdkPixbuf", ((const char *) (__func__)), "src_y >= 0 && src_y + height <= src_pixbuf->height" ); return (((void*)0)); } } while (0); |
| 718 | |
| 719 | /* Note causes an implicit copy where src_pixbuf owns the data */ |
| 720 | pixels = (cdk_pixbuf_get_pixels (src_pixbuf) |
| 721 | + src_y * src_pixbuf->rowstride |
| 722 | + src_x * src_pixbuf->n_channels); |
| 723 | |
| 724 | sub = cdk_pixbuf_new_from_data (pixels, |
| 725 | src_pixbuf->colorspace, |
| 726 | src_pixbuf->has_alpha, |
| 727 | src_pixbuf->bits_per_sample, |
| 728 | width, height, |
| 729 | src_pixbuf->rowstride, |
| 730 | NULL((void*)0), NULL((void*)0)); |
| 731 | |
| 732 | /* Keep a reference to src_pixbuf */ |
| 733 | g_object_ref (src_pixbuf)((__typeof__ (src_pixbuf)) (g_object_ref) (src_pixbuf)); |
| 734 | |
| 735 | g_object_set_qdata_full (G_OBJECT (sub)((((GObject*) (void *) ((sub))))), |
| 736 | g_quark_from_static_string ("cdk-pixbuf-subpixbuf-src"), |
| 737 | src_pixbuf, |
| 738 | (GDestroyNotify) g_object_unref); |
| 739 | |
| 740 | return sub; |
| 741 | } |
| 742 | |
| 743 | |
| 744 | |
| 745 | /* Accessors */ |
| 746 | |
| 747 | /** |
| 748 | * cdk_pixbuf_get_colorspace: |
| 749 | * @pixbuf: A pixbuf. |
| 750 | * |
| 751 | * Queries the color space of a pixbuf. |
| 752 | * |
| 753 | * Return value: Color space. |
| 754 | **/ |
| 755 | CdkColorspace |
| 756 | cdk_pixbuf_get_colorspace (const CdkPixbuf *pixbuf) |
| 757 | { |
| 758 | g_return_val_if_fail (CDK_IS_PIXBUF (pixbuf), CDK_COLORSPACE_RGB)do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_60 = 0; if ((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((pixbuf)); GType __t = ((cdk_pixbuf_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; }))))) _g_boolean_var_60 = 1; _g_boolean_var_60; }), 1))) { } else { g_return_if_fail_warning ("CdkPixbuf", ((const char*) (__func__)), "CDK_IS_PIXBUF (pixbuf)" ); return (CDK_COLORSPACE_RGB); } } while (0); |
| 759 | |
| 760 | return pixbuf->colorspace; |
| 761 | } |
| 762 | |
| 763 | /** |
| 764 | * cdk_pixbuf_get_n_channels: |
| 765 | * @pixbuf: A pixbuf. |
| 766 | * |
| 767 | * Queries the number of channels of a pixbuf. |
| 768 | * |
| 769 | * Return value: Number of channels. |
| 770 | **/ |
| 771 | int |
| 772 | cdk_pixbuf_get_n_channels (const CdkPixbuf *pixbuf) |
| 773 | { |
| 774 | g_return_val_if_fail (CDK_IS_PIXBUF (pixbuf), -1)do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_61 = 0; if ((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((pixbuf)); GType __t = ((cdk_pixbuf_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; }))))) _g_boolean_var_61 = 1; _g_boolean_var_61; }), 1))) { } else { g_return_if_fail_warning ("CdkPixbuf", ((const char*) (__func__)), "CDK_IS_PIXBUF (pixbuf)" ); return (-1); } } while (0); |
| 775 | |
| 776 | return pixbuf->n_channels; |
| 777 | } |
| 778 | |
| 779 | /** |
| 780 | * cdk_pixbuf_get_has_alpha: |
| 781 | * @pixbuf: A pixbuf. |
| 782 | * |
| 783 | * Queries whether a pixbuf has an alpha channel (opacity information). |
| 784 | * |
| 785 | * Return value: `TRUE` if it has an alpha channel, `FALSE` otherwise. |
| 786 | **/ |
| 787 | gboolean |
| 788 | cdk_pixbuf_get_has_alpha (const CdkPixbuf *pixbuf) |
| 789 | { |
| 790 | g_return_val_if_fail (CDK_IS_PIXBUF (pixbuf), FALSE)do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_62 = 0; if ((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((pixbuf)); GType __t = ((cdk_pixbuf_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; }))))) _g_boolean_var_62 = 1; _g_boolean_var_62; }), 1))) { } else { g_return_if_fail_warning ("CdkPixbuf", ((const char*) (__func__)), "CDK_IS_PIXBUF (pixbuf)" ); return ((0)); } } while (0); |
| 791 | |
| 792 | return pixbuf->has_alpha ? TRUE(!(0)) : FALSE(0); |
| 793 | } |
| 794 | |
| 795 | /** |
| 796 | * cdk_pixbuf_get_bits_per_sample: |
| 797 | * @pixbuf: A pixbuf. |
| 798 | * |
| 799 | * Queries the number of bits per color sample in a pixbuf. |
| 800 | * |
| 801 | * Return value: Number of bits per color sample. |
| 802 | **/ |
| 803 | int |
| 804 | cdk_pixbuf_get_bits_per_sample (const CdkPixbuf *pixbuf) |
| 805 | { |
| 806 | g_return_val_if_fail (CDK_IS_PIXBUF (pixbuf), -1)do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_63 = 0; if ((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((pixbuf)); GType __t = ((cdk_pixbuf_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; }))))) _g_boolean_var_63 = 1; _g_boolean_var_63; }), 1))) { } else { g_return_if_fail_warning ("CdkPixbuf", ((const char*) (__func__)), "CDK_IS_PIXBUF (pixbuf)" ); return (-1); } } while (0); |
| 807 | |
| 808 | return pixbuf->bits_per_sample; |
| 809 | } |
| 810 | |
| 811 | /** |
| 812 | * cdk_pixbuf_get_pixels: |
| 813 | * @pixbuf: A pixbuf. |
| 814 | * |
| 815 | * Queries a pointer to the pixel data of a pixbuf. |
| 816 | * |
| 817 | * This function will cause an implicit copy of the pixbuf data if the |
| 818 | * pixbuf was created from read-only data. |
| 819 | * |
| 820 | * Please see the section on [image data](class.Pixbuf.html#image-data) for information |
| 821 | * about how the pixel data is stored in memory. |
| 822 | * |
| 823 | * Return value: (array): A pointer to the pixbuf's pixel data. |
| 824 | **/ |
| 825 | guchar * |
| 826 | cdk_pixbuf_get_pixels (const CdkPixbuf *pixbuf) |
| 827 | { |
| 828 | return cdk_pixbuf_get_pixels_with_length (pixbuf, NULL((void*)0)); |
| 829 | } |
| 830 | |
| 831 | static void |
| 832 | downgrade_to_pixels (const CdkPixbuf *pixbuf) |
| 833 | { |
| 834 | switch (pixbuf->storage) { |
| 835 | case STORAGE_PIXELS: |
| 836 | return; |
| 837 | |
| 838 | case STORAGE_BYTES: { |
| 839 | CdkPixbuf *mut_pixbuf = (CdkPixbuf *) pixbuf; |
| 840 | gsize len; |
| 841 | Pixels pixels; |
| 842 | |
| 843 | pixels.pixels = g_bytes_unref_to_data (pixbuf->s.bytes.bytes, &len); |
| 844 | pixels.destroy_fn = free_buffer; |
| 845 | pixels.destroy_fn_data = NULL((void*)0); |
| 846 | |
| 847 | mut_pixbuf->storage = STORAGE_PIXELS; |
| 848 | mut_pixbuf->s.pixels = pixels; |
| 849 | break; |
| 850 | } |
| 851 | |
| 852 | default: |
| 853 | g_assert_not_reached ()do { g_assertion_message_expr ("CdkPixbuf", "../cdk-pixbuf/cdk-pixbuf.c" , 853, ((const char*) (__func__)), ((void*)0)); } while (0); |
| 854 | } |
| 855 | } |
| 856 | |
| 857 | /** |
| 858 | * cdk_pixbuf_get_pixels_with_length: (rename-to cdk_pixbuf_get_pixels) |
| 859 | * @pixbuf: A pixbuf. |
| 860 | * @length: (out): The length of the binary data. |
| 861 | * |
| 862 | * Queries a pointer to the pixel data of a pixbuf. |
| 863 | * |
| 864 | * This function will cause an implicit copy of the pixbuf data if the |
| 865 | * pixbuf was created from read-only data. |
| 866 | * |
| 867 | * Please see the section on [image data](class.Pixbuf.html#image-data) for information |
| 868 | * about how the pixel data is stored in memory. |
| 869 | * |
| 870 | * Return value: (array length=length): A pointer to the pixbuf's |
| 871 | * pixel data. |
| 872 | * |
| 873 | * Since: 2.26 |
| 874 | */ |
| 875 | guchar * |
| 876 | cdk_pixbuf_get_pixels_with_length (const CdkPixbuf *pixbuf, |
| 877 | guint *length) |
| 878 | { |
| 879 | g_return_val_if_fail (CDK_IS_PIXBUF (pixbuf), NULL)do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_64 = 0; if ((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((pixbuf)); GType __t = ((cdk_pixbuf_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; }))))) _g_boolean_var_64 = 1; _g_boolean_var_64; }), 1))) { } else { g_return_if_fail_warning ("CdkPixbuf", ((const char*) (__func__)), "CDK_IS_PIXBUF (pixbuf)" ); return (((void*)0)); } } while (0); |
| 880 | |
| 881 | downgrade_to_pixels (pixbuf); |
| 882 | g_assert (pixbuf->storage == STORAGE_PIXELS)do { if (__builtin_expect (__extension__ ({ int _g_boolean_var_65 = 0; if (pixbuf->storage == STORAGE_PIXELS) _g_boolean_var_65 = 1; _g_boolean_var_65; }), 1)) ; else g_assertion_message_expr ("CdkPixbuf", "../cdk-pixbuf/cdk-pixbuf.c", 882, ((const char *) (__func__)), "pixbuf->storage == STORAGE_PIXELS"); } while (0); |
| 883 | |
| 884 | if (length) |
| 885 | *length = cdk_pixbuf_get_byte_length (pixbuf); |
| 886 | |
| 887 | return pixbuf->s.pixels.pixels; |
| 888 | } |
| 889 | |
| 890 | /** |
| 891 | * cdk_pixbuf_read_pixels: |
| 892 | * @pixbuf: A pixbuf |
| 893 | * |
| 894 | * Provides a read-only pointer to the raw pixel data. |
| 895 | * |
| 896 | * This function allows skipping the implicit copy that must be made |
| 897 | * if cdk_pixbuf_get_pixels() is called on a read-only pixbuf. |
| 898 | * |
| 899 | * Returns: a read-only pointer to the raw pixel data |
| 900 | * |
| 901 | * Since: 2.32 |
| 902 | */ |
| 903 | const guint8* |
| 904 | cdk_pixbuf_read_pixels (const CdkPixbuf *pixbuf) |
| 905 | { |
| 906 | g_return_val_if_fail (CDK_IS_PIXBUF (pixbuf), NULL)do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_66 = 0; if ((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((pixbuf)); GType __t = ((cdk_pixbuf_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; }))))) _g_boolean_var_66 = 1; _g_boolean_var_66; }), 1))) { } else { g_return_if_fail_warning ("CdkPixbuf", ((const char*) (__func__)), "CDK_IS_PIXBUF (pixbuf)" ); return (((void*)0)); } } while (0); |
| 907 | |
| 908 | switch (pixbuf->storage) { |
| 909 | case STORAGE_PIXELS: |
| 910 | return pixbuf->s.pixels.pixels; |
| 911 | |
| 912 | case STORAGE_BYTES: { |
| 913 | gsize len; |
| 914 | /* Ignore len; callers know the size via other variables */ |
| 915 | return g_bytes_get_data (pixbuf->s.bytes.bytes, &len); |
| 916 | } |
| 917 | |
| 918 | default: |
| 919 | g_assert_not_reached ()do { g_assertion_message_expr ("CdkPixbuf", "../cdk-pixbuf/cdk-pixbuf.c" , 919, ((const char*) (__func__)), ((void*)0)); } while (0); |
| 920 | return NULL((void*)0); |
| 921 | } |
| 922 | } |
| 923 | |
| 924 | /** |
| 925 | * cdk_pixbuf_read_pixel_bytes: |
| 926 | * @pixbuf: A pixbuf |
| 927 | * |
| 928 | * Provides a #GBytes buffer containing the raw pixel data; the data |
| 929 | * must not be modified. |
| 930 | * |
| 931 | * This function allows skipping the implicit copy that must be made |
| 932 | * if cdk_pixbuf_get_pixels() is called on a read-only pixbuf. |
| 933 | * |
| 934 | * Returns: (transfer full): A new reference to a read-only copy of |
| 935 | * the pixel data. Note that for mutable pixbufs, this function will |
| 936 | * incur a one-time copy of the pixel data for conversion into the |
| 937 | * returned #GBytes. |
| 938 | * |
| 939 | * Since: 2.32 |
| 940 | */ |
| 941 | GBytes * |
| 942 | cdk_pixbuf_read_pixel_bytes (const CdkPixbuf *pixbuf) |
| 943 | { |
| 944 | g_return_val_if_fail (CDK_IS_PIXBUF (pixbuf), NULL)do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_67 = 0; if ((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((pixbuf)); GType __t = ((cdk_pixbuf_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; }))))) _g_boolean_var_67 = 1; _g_boolean_var_67; }), 1))) { } else { g_return_if_fail_warning ("CdkPixbuf", ((const char*) (__func__)), "CDK_IS_PIXBUF (pixbuf)" ); return (((void*)0)); } } while (0); |
| 945 | |
| 946 | switch (pixbuf->storage) { |
| 947 | case STORAGE_PIXELS: |
| 948 | return g_bytes_new (pixbuf->s.pixels.pixels, |
| 949 | cdk_pixbuf_get_byte_length (pixbuf)); |
| 950 | |
| 951 | case STORAGE_BYTES: |
| 952 | return g_bytes_ref (pixbuf->s.bytes.bytes); |
| 953 | |
| 954 | default: |
| 955 | g_assert_not_reached ()do { g_assertion_message_expr ("CdkPixbuf", "../cdk-pixbuf/cdk-pixbuf.c" , 955, ((const char*) (__func__)), ((void*)0)); } while (0); |
| 956 | } |
| 957 | } |
| 958 | |
| 959 | /** |
| 960 | * cdk_pixbuf_get_width: |
| 961 | * @pixbuf: A pixbuf. |
| 962 | * |
| 963 | * Queries the width of a pixbuf. |
| 964 | * |
| 965 | * Return value: Width in pixels. |
| 966 | **/ |
| 967 | int |
| 968 | cdk_pixbuf_get_width (const CdkPixbuf *pixbuf) |
| 969 | { |
| 970 | g_return_val_if_fail (CDK_IS_PIXBUF (pixbuf), -1)do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_68 = 0; if ((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((pixbuf)); GType __t = ((cdk_pixbuf_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; }))))) _g_boolean_var_68 = 1; _g_boolean_var_68; }), 1))) { } else { g_return_if_fail_warning ("CdkPixbuf", ((const char*) (__func__)), "CDK_IS_PIXBUF (pixbuf)" ); return (-1); } } while (0); |
| 971 | |
| 972 | return pixbuf->width; |
| 973 | } |
| 974 | |
| 975 | /** |
| 976 | * cdk_pixbuf_get_height: |
| 977 | * @pixbuf: A pixbuf. |
| 978 | * |
| 979 | * Queries the height of a pixbuf. |
| 980 | * |
| 981 | * Return value: Height in pixels. |
| 982 | **/ |
| 983 | int |
| 984 | cdk_pixbuf_get_height (const CdkPixbuf *pixbuf) |
| 985 | { |
| 986 | g_return_val_if_fail (CDK_IS_PIXBUF (pixbuf), -1)do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_69 = 0; if ((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((pixbuf)); GType __t = ((cdk_pixbuf_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; }))))) _g_boolean_var_69 = 1; _g_boolean_var_69; }), 1))) { } else { g_return_if_fail_warning ("CdkPixbuf", ((const char*) (__func__)), "CDK_IS_PIXBUF (pixbuf)" ); return (-1); } } while (0); |
| 987 | |
| 988 | return pixbuf->height; |
| 989 | } |
| 990 | |
| 991 | /** |
| 992 | * cdk_pixbuf_get_rowstride: |
| 993 | * @pixbuf: A pixbuf. |
| 994 | * |
| 995 | * Queries the rowstride of a pixbuf, which is the number of bytes between |
| 996 | * the start of a row and the start of the next row. |
| 997 | * |
| 998 | * Return value: Distance between row starts. |
| 999 | **/ |
| 1000 | int |
| 1001 | cdk_pixbuf_get_rowstride (const CdkPixbuf *pixbuf) |
| 1002 | { |
| 1003 | g_return_val_if_fail (CDK_IS_PIXBUF (pixbuf), -1)do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_70 = 0; if ((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((pixbuf)); GType __t = ((cdk_pixbuf_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; }))))) _g_boolean_var_70 = 1; _g_boolean_var_70; }), 1))) { } else { g_return_if_fail_warning ("CdkPixbuf", ((const char*) (__func__)), "CDK_IS_PIXBUF (pixbuf)" ); return (-1); } } while (0); |
| 1004 | |
| 1005 | return pixbuf->rowstride; |
| 1006 | } |
| 1007 | |
| 1008 | /** |
| 1009 | * cdk_pixbuf_get_byte_length: |
| 1010 | * @pixbuf: A pixbuf |
| 1011 | * |
| 1012 | * Returns the length of the pixel data, in bytes. |
| 1013 | * |
| 1014 | * Return value: The length of the pixel data. |
| 1015 | * |
| 1016 | * Since: 2.26 |
| 1017 | */ |
| 1018 | gsize |
| 1019 | cdk_pixbuf_get_byte_length (const CdkPixbuf *pixbuf) |
| 1020 | { |
| 1021 | g_return_val_if_fail (CDK_IS_PIXBUF (pixbuf), -1)do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_71 = 0; if ((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((pixbuf)); GType __t = ((cdk_pixbuf_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; }))))) _g_boolean_var_71 = 1; _g_boolean_var_71; }), 1))) { } else { g_return_if_fail_warning ("CdkPixbuf", ((const char*) (__func__)), "CDK_IS_PIXBUF (pixbuf)" ); return (-1); } } while (0); |
| 1022 | |
| 1023 | return ((pixbuf->height - 1) * pixbuf->rowstride + |
| 1024 | pixbuf->width * ((pixbuf->n_channels * pixbuf->bits_per_sample + 7) / 8)); |
| 1025 | } |
| 1026 | |
| 1027 | |
| 1028 | |
| 1029 | /* General initialization hooks */ |
| 1030 | const guint cdk_pixbuf_major_version = CDK_PIXBUF_MAJOR(2); |
| 1031 | const guint cdk_pixbuf_minor_version = CDK_PIXBUF_MINOR(45); |
| 1032 | const guint cdk_pixbuf_micro_version = CDK_PIXBUF_MICRO(0); |
| 1033 | |
| 1034 | const char *cdk_pixbuf_version = CDK_PIXBUF_VERSION"2.45.0"; |
| 1035 | |
| 1036 | /* Error quark */ |
| 1037 | GQuark |
| 1038 | cdk_pixbuf_error_quark (void) |
| 1039 | { |
| 1040 | return g_quark_from_static_string ("cdk-pixbuf-error-quark"); |
| 1041 | } |
| 1042 | |
| 1043 | /** |
| 1044 | * cdk_pixbuf_fill: |
| 1045 | * @pixbuf: a `CdkPixbuf` |
| 1046 | * @pixel: RGBA pixel to used to clear (`0xffffffff` is opaque white, |
| 1047 | * `0x00000000` transparent black) |
| 1048 | * |
| 1049 | * Clears a pixbuf to the given RGBA value, converting the RGBA value into |
| 1050 | * the pixbuf's pixel format. |
| 1051 | * |
| 1052 | * The alpha component will be ignored if the pixbuf doesn't have an alpha |
| 1053 | * channel. |
| 1054 | */ |
| 1055 | void |
| 1056 | cdk_pixbuf_fill (CdkPixbuf *pixbuf, |
| 1057 | guint32 pixel) |
| 1058 | { |
| 1059 | guchar *pixels; |
| 1060 | guint r, g, b, a; |
| 1061 | guchar *p; |
| 1062 | guint w, h; |
| 1063 | |
| 1064 | g_return_if_fail (CDK_IS_PIXBUF (pixbuf))do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_72 = 0; if ((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((pixbuf)); GType __t = ((cdk_pixbuf_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; }))))) _g_boolean_var_72 = 1; _g_boolean_var_72; }), 1))) { } else { g_return_if_fail_warning ("CdkPixbuf", ((const char*) (__func__)), "CDK_IS_PIXBUF (pixbuf)" ); return; } } while (0); |
| 1065 | |
| 1066 | if (pixbuf->width == 0 || pixbuf->height == 0) |
| 1067 | return; |
| 1068 | |
| 1069 | /* Force an implicit copy */ |
| 1070 | pixels = cdk_pixbuf_get_pixels (pixbuf); |
| 1071 | |
| 1072 | r = (pixel & 0xff000000) >> 24; |
| 1073 | g = (pixel & 0x00ff0000) >> 16; |
| 1074 | b = (pixel & 0x0000ff00) >> 8; |
| 1075 | a = (pixel & 0x000000ff); |
| 1076 | |
| 1077 | h = pixbuf->height; |
| 1078 | |
| 1079 | while (h--) { |
| 1080 | w = pixbuf->width; |
| 1081 | p = pixels; |
| 1082 | |
| 1083 | switch (pixbuf->n_channels) { |
| 1084 | case 3: |
| 1085 | while (w--) { |
| 1086 | p[0] = r; |
| 1087 | p[1] = g; |
| 1088 | p[2] = b; |
| 1089 | p += 3; |
| 1090 | } |
| 1091 | break; |
| 1092 | case 4: |
| 1093 | while (w--) { |
| 1094 | p[0] = r; |
| 1095 | p[1] = g; |
| 1096 | p[2] = b; |
| 1097 | p[3] = a; |
| 1098 | p += 4; |
| 1099 | } |
| 1100 | break; |
| 1101 | default: |
| 1102 | break; |
| 1103 | } |
| 1104 | |
| 1105 | pixels += pixbuf->rowstride; |
| 1106 | } |
| 1107 | } |
| 1108 | |
| 1109 | |
| 1110 | |
| 1111 | /** |
| 1112 | * cdk_pixbuf_get_option: |
| 1113 | * @pixbuf: a `CdkPixbuf` |
| 1114 | * @key: a nul-terminated string. |
| 1115 | * |
| 1116 | * Looks up @key in the list of options that may have been attached to the |
| 1117 | * @pixbuf when it was loaded, or that may have been attached by another |
| 1118 | * function using cdk_pixbuf_set_option(). |
| 1119 | * |
| 1120 | * For instance, the ANI loader provides "Title" and "Artist" options. |
| 1121 | * The ICO, XBM, and XPM loaders provide "x_hot" and "y_hot" hot-spot |
| 1122 | * options for cursor definitions. The PNG loader provides the tEXt ancillary |
| 1123 | * chunk key/value pairs as options. Since 2.12, the TIFF and JPEG loaders |
| 1124 | * return an "orientation" option string that corresponds to the embedded |
| 1125 | * TIFF/Exif orientation tag (if present). Since 2.32, the TIFF loader sets |
| 1126 | * the "multipage" option string to "yes" when a multi-page TIFF is loaded. |
| 1127 | * Since 2.32 the JPEG and PNG loaders set "x-dpi" and "y-dpi" if the file |
| 1128 | * contains image density information in dots per inch. |
| 1129 | * Since 2.36.6, the JPEG loader sets the "comment" option with the comment |
| 1130 | * EXIF tag. |
| 1131 | * |
| 1132 | * Return value: (transfer none) (nullable): the value associated with `key` |
| 1133 | **/ |
| 1134 | const gchar * |
| 1135 | cdk_pixbuf_get_option (CdkPixbuf *pixbuf, |
| 1136 | const gchar *key) |
| 1137 | { |
| 1138 | gchar **options; |
| 1139 | gint i; |
| 1140 | |
| 1141 | g_return_val_if_fail (CDK_IS_PIXBUF (pixbuf), NULL)do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_73 = 0; if ((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((pixbuf)); GType __t = ((cdk_pixbuf_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; }))))) _g_boolean_var_73 = 1; _g_boolean_var_73; }), 1))) { } else { g_return_if_fail_warning ("CdkPixbuf", ((const char*) (__func__)), "CDK_IS_PIXBUF (pixbuf)" ); return (((void*)0)); } } while (0); |
| 1142 | g_return_val_if_fail (key != NULL, NULL)do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_74 = 0; if (key != ((void*)0)) _g_boolean_var_74 = 1; _g_boolean_var_74 ; }), 1))) { } else { g_return_if_fail_warning ("CdkPixbuf", ( (const char*) (__func__)), "key != NULL"); return (((void*)0) ); } } while (0); |
| 1143 | |
| 1144 | options = g_object_get_qdata (G_OBJECT (pixbuf)((((GObject*) (void *) ((pixbuf))))), |
| 1145 | g_quark_from_static_string ("cdk_pixbuf_options")); |
| 1146 | if (options) { |
| 1147 | for (i = 0; options[2*i]; i++) { |
| 1148 | if (strcmp (options[2*i], key) == 0) |
| 1149 | return options[2*i+1]; |
| 1150 | } |
| 1151 | } |
| 1152 | |
| 1153 | return NULL((void*)0); |
| 1154 | } |
| 1155 | |
| 1156 | /** |
| 1157 | * cdk_pixbuf_get_options: |
| 1158 | * @pixbuf: a `CdkPixbuf` |
| 1159 | * |
| 1160 | * Returns a `GHashTable` with a list of all the options that may have been |
| 1161 | * attached to the `pixbuf` when it was loaded, or that may have been |
| 1162 | * attached by another function using [method@CdkPixbuf.Pixbuf.set_option]. |
| 1163 | * |
| 1164 | * Return value: (transfer container) (element-type utf8 utf8): a #GHashTable |
| 1165 | * of key/values pairs |
| 1166 | * |
| 1167 | * Since: 2.32 |
| 1168 | **/ |
| 1169 | GHashTable * |
| 1170 | cdk_pixbuf_get_options (CdkPixbuf *pixbuf) |
| 1171 | { |
| 1172 | GHashTable *ht; |
| 1173 | gchar **options; |
| 1174 | |
| 1175 | g_return_val_if_fail (CDK_IS_PIXBUF (pixbuf), NULL)do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_75 = 0; if ((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((pixbuf)); GType __t = ((cdk_pixbuf_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; }))))) _g_boolean_var_75 = 1; _g_boolean_var_75; }), 1))) { } else { g_return_if_fail_warning ("CdkPixbuf", ((const char*) (__func__)), "CDK_IS_PIXBUF (pixbuf)" ); return (((void*)0)); } } while (0); |
| 1176 | |
| 1177 | ht = g_hash_table_new (g_str_hash, g_str_equal); |
| 1178 | |
| 1179 | options = g_object_get_qdata (G_OBJECT (pixbuf)((((GObject*) (void *) ((pixbuf))))), |
| 1180 | g_quark_from_static_string ("cdk_pixbuf_options")); |
| 1181 | if (options) { |
| 1182 | gint i; |
| 1183 | |
| 1184 | for (i = 0; options[2*i]; i++) |
| 1185 | g_hash_table_insert (ht, options[2*i], options[2*i+1]); |
| 1186 | } |
| 1187 | |
| 1188 | return ht; |
| 1189 | } |
| 1190 | |
| 1191 | /** |
| 1192 | * cdk_pixbuf_remove_option: |
| 1193 | * @pixbuf: a `CdkPixbuf` |
| 1194 | * @key: a nul-terminated string representing the key to remove. |
| 1195 | * |
| 1196 | * Removes the key/value pair option attached to a `CdkPixbuf`. |
| 1197 | * |
| 1198 | * Return value: `TRUE` if an option was removed, `FALSE` if not. |
| 1199 | * |
| 1200 | * Since: 2.36 |
| 1201 | **/ |
| 1202 | gboolean |
| 1203 | cdk_pixbuf_remove_option (CdkPixbuf *pixbuf, |
| 1204 | const gchar *key) |
| 1205 | { |
| 1206 | GQuark quark; |
| 1207 | gchar **options; |
| 1208 | guint n; |
| 1209 | GPtrArray *array; |
| 1210 | gboolean found; |
| 1211 | |
| 1212 | g_return_val_if_fail (CDK_IS_PIXBUF (pixbuf), FALSE)do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_76 = 0; if ((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((pixbuf)); GType __t = ((cdk_pixbuf_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; }))))) _g_boolean_var_76 = 1; _g_boolean_var_76; }), 1))) { } else { g_return_if_fail_warning ("CdkPixbuf", ((const char*) (__func__)), "CDK_IS_PIXBUF (pixbuf)" ); return ((0)); } } while (0); |
| 1213 | g_return_val_if_fail (key != NULL, FALSE)do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_77 = 0; if (key != ((void*)0)) _g_boolean_var_77 = 1; _g_boolean_var_77 ; }), 1))) { } else { g_return_if_fail_warning ("CdkPixbuf", ( (const char*) (__func__)), "key != NULL"); return ((0)); } } while (0); |
| 1214 | |
| 1215 | quark = g_quark_from_static_string ("cdk_pixbuf_options"); |
| 1216 | |
| 1217 | options = g_object_get_qdata (G_OBJECT (pixbuf)((((GObject*) (void *) ((pixbuf))))), quark); |
| 1218 | if (!options) |
| 1219 | return FALSE(0); |
| 1220 | |
| 1221 | g_object_steal_qdata (G_OBJECT (pixbuf)((((GObject*) (void *) ((pixbuf))))), quark); |
| 1222 | |
| 1223 | /* There's at least a nul-terminator */ |
| 1224 | array = g_ptr_array_new_full (1, g_free); |
| 1225 | |
| 1226 | found = FALSE(0); |
| 1227 | for (n = 0; options[2*n]; n++) { |
| 1228 | if (strcmp (options[2*n], key) != 0) { |
| 1229 | g_ptr_array_add (array, g_strdup (options[2*n])g_strdup_inline (options[2*n])); /* key */ |
| 1230 | g_ptr_array_add (array, g_strdup (options[2*n+1])g_strdup_inline (options[2*n+1])); /* value */ |
| 1231 | } else { |
| 1232 | found = TRUE(!(0)); |
| 1233 | } |
| 1234 | } |
| 1235 | |
| 1236 | if (array->len == 0) { |
| 1237 | g_ptr_array_unref (array); |
| 1238 | g_strfreev (options); |
| 1239 | return found; |
| 1240 | } |
| 1241 | |
| 1242 | if (!found) { |
| 1243 | g_ptr_array_free (array, TRUE(!(0))); |
| 1244 | g_object_set_qdata_full (G_OBJECT (pixbuf)((((GObject*) (void *) ((pixbuf))))), quark, |
| 1245 | options, (GDestroyNotify) g_strfreev); |
| 1246 | return FALSE(0); |
| 1247 | } |
| 1248 | |
| 1249 | g_ptr_array_add (array, NULL((void*)0)); |
| 1250 | g_object_set_qdata_full (G_OBJECT (pixbuf)((((GObject*) (void *) ((pixbuf))))), quark, |
| 1251 | g_ptr_array_free (array, FALSE(0)), (GDestroyNotify) g_strfreev); |
| 1252 | g_strfreev (options); |
| 1253 | |
| 1254 | return TRUE(!(0)); |
| 1255 | } |
| 1256 | |
| 1257 | /** |
| 1258 | * cdk_pixbuf_set_option: |
| 1259 | * @pixbuf: a `CdkPixbuf` |
| 1260 | * @key: a nul-terminated string. |
| 1261 | * @value: a nul-terminated string. |
| 1262 | * |
| 1263 | * Attaches a key/value pair as an option to a `CdkPixbuf`. |
| 1264 | * |
| 1265 | * If `key` already exists in the list of options attached to the `pixbuf`, |
| 1266 | * the new value is ignored and `FALSE` is returned. |
| 1267 | * |
| 1268 | * Return value: `TRUE` on success |
| 1269 | * |
| 1270 | * Since: 2.2 |
| 1271 | **/ |
| 1272 | gboolean |
| 1273 | cdk_pixbuf_set_option (CdkPixbuf *pixbuf, |
| 1274 | const gchar *key, |
| 1275 | const gchar *value) |
| 1276 | { |
| 1277 | GQuark quark; |
| 1278 | gchar **options; |
| 1279 | gint n = 0; |
| 1280 | |
| 1281 | g_return_val_if_fail (CDK_IS_PIXBUF (pixbuf), FALSE)do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_78 = 0; if ((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((pixbuf)); GType __t = ((cdk_pixbuf_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; }))))) _g_boolean_var_78 = 1; _g_boolean_var_78; }), 1))) { } else { g_return_if_fail_warning ("CdkPixbuf", ((const char*) (__func__)), "CDK_IS_PIXBUF (pixbuf)" ); return ((0)); } } while (0); |
| 1282 | g_return_val_if_fail (key != NULL, FALSE)do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_79 = 0; if (key != ((void*)0)) _g_boolean_var_79 = 1; _g_boolean_var_79 ; }), 1))) { } else { g_return_if_fail_warning ("CdkPixbuf", ( (const char*) (__func__)), "key != NULL"); return ((0)); } } while (0); |
| 1283 | g_return_val_if_fail (value != NULL, FALSE)do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_80 = 0; if (value != ((void*)0)) _g_boolean_var_80 = 1; _g_boolean_var_80 ; }), 1))) { } else { g_return_if_fail_warning ("CdkPixbuf", ( (const char*) (__func__)), "value != NULL"); return ((0)); } } while (0); |
| 1284 | |
| 1285 | quark = g_quark_from_static_string ("cdk_pixbuf_options"); |
| 1286 | |
| 1287 | options = g_object_get_qdata (G_OBJECT (pixbuf)((((GObject*) (void *) ((pixbuf))))), quark); |
| 1288 | |
| 1289 | if (options) { |
| 1290 | for (n = 0; options[2*n]; n++) { |
| 1291 | if (strcmp (options[2*n], key) == 0) |
| 1292 | return FALSE(0); |
| 1293 | } |
| 1294 | |
| 1295 | g_object_steal_qdata (G_OBJECT (pixbuf)((((GObject*) (void *) ((pixbuf))))), quark); |
| 1296 | options = g_renew (gchar *, options, 2*(n+1) + 1)(gchar * *) (__extension__ ({ gsize __n = (gsize) (2*(n+1) + 1 ); gsize __s = sizeof (gchar *); gpointer __p = (gpointer) (options ); if (__s == 1) __p = g_realloc (__p, __n); else if (__builtin_constant_p (__n) && (__s == 0 || __n <= (9223372036854775807L *2UL+1UL) / __s)) __p = g_realloc (__p, __n * __s); else __p = g_realloc_n (__p, __n, __s); __p; })); |
| 1297 | } else { |
| 1298 | options = g_new (gchar *, 3)(gchar * *) (__extension__ ({ gsize __n = (gsize) (3); gsize __s = sizeof (gchar *); gpointer __p; if (__s == 1) __p = g_malloc (__n); else if (__builtin_constant_p (__n) && (__s == 0 || __n <= (9223372036854775807L *2UL+1UL) / __s)) __p = g_malloc (__n * __s); else __p = g_malloc_n (__n, __s); __p; })); |
| 1299 | } |
| 1300 | |
| 1301 | options[2*n] = g_strdup (key)g_strdup_inline (key); |
| 1302 | options[2*n+1] = g_strdup (value)g_strdup_inline (value); |
| 1303 | options[2*n+2] = NULL((void*)0); |
| 1304 | |
| 1305 | g_object_set_qdata_full (G_OBJECT (pixbuf)((((GObject*) (void *) ((pixbuf))))), quark, |
| 1306 | options, (GDestroyNotify) g_strfreev); |
| 1307 | |
| 1308 | return TRUE(!(0)); |
| 1309 | } |
| 1310 | |
| 1311 | /** |
| 1312 | * cdk_pixbuf_copy_options: |
| 1313 | * @src_pixbuf: the source pixbuf |
| 1314 | * @dest_pixbuf: the destination pixbuf |
| 1315 | * |
| 1316 | * Copies the key/value pair options attached to a `CdkPixbuf` to another |
| 1317 | * `CdkPixbuf`. |
| 1318 | * |
| 1319 | * This is useful to keep original metadata after having manipulated |
| 1320 | * a file. However be careful to remove metadata which you've already |
| 1321 | * applied, such as the "orientation" option after rotating the image. |
| 1322 | * |
| 1323 | * Return value: `TRUE` on success. |
| 1324 | * |
| 1325 | * Since: 2.36 |
| 1326 | **/ |
| 1327 | gboolean |
| 1328 | cdk_pixbuf_copy_options (CdkPixbuf *src_pixbuf, |
| 1329 | CdkPixbuf *dest_pixbuf) |
| 1330 | { |
| 1331 | GQuark quark; |
| 1332 | gchar **options; |
| 1333 | |
| 1334 | g_return_val_if_fail (CDK_IS_PIXBUF (src_pixbuf), FALSE)do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_81 = 0; if ((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((src_pixbuf)); GType __t = ((cdk_pixbuf_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; }))))) _g_boolean_var_81 = 1; _g_boolean_var_81; }), 1))) { } else { g_return_if_fail_warning ("CdkPixbuf", ((const char*) (__func__)), "CDK_IS_PIXBUF (src_pixbuf)" ); return ((0)); } } while (0); |
| 1335 | g_return_val_if_fail (CDK_IS_PIXBUF (dest_pixbuf), FALSE)do { if ((__builtin_expect (__extension__ ({ int _g_boolean_var_82 = 0; if ((((__extension__ ({ GTypeInstance *__inst = (GTypeInstance *) ((dest_pixbuf)); GType __t = ((cdk_pixbuf_get_type ())); gboolean __r; if (!__inst) __r = (0); else if (__inst->g_class && __inst->g_class->g_type == __t) __r = (!(0)); else __r = g_type_check_instance_is_a (__inst, __t); __r; }))))) _g_boolean_var_82 = 1; _g_boolean_var_82; }), 1))) { } else { g_return_if_fail_warning ("CdkPixbuf", ((const char*) (__func__)), "CDK_IS_PIXBUF (dest_pixbuf)" ); return ((0)); } } while (0); |
| 1336 | |
| 1337 | quark = g_quark_from_static_string ("cdk_pixbuf_options"); |
| 1338 | |
| 1339 | options = g_object_dup_qdata (G_OBJECT (src_pixbuf)((((GObject*) (void *) ((src_pixbuf))))), |
| 1340 | quark, |
| 1341 | (GDuplicateFunc) g_strdupv, |
| 1342 | NULL((void*)0)); |
| 1343 | |
| 1344 | if (options == NULL((void*)0)) |
| 1345 | return TRUE(!(0)); |
| 1346 | |
| 1347 | g_object_set_qdata_full (G_OBJECT (dest_pixbuf)((((GObject*) (void *) ((dest_pixbuf))))), quark, |
| 1348 | options, (GDestroyNotify) g_strfreev); |
| 1349 | |
| 1350 | return TRUE(!(0)); |
| 1351 | } |
| 1352 | |
| 1353 | static void |
| 1354 | cdk_pixbuf_set_property (GObject *object, |
| 1355 | guint prop_id, |
| 1356 | const GValue *value, |
| 1357 | GParamSpec *pspec) |
| 1358 | { |
| 1359 | CdkPixbuf *pixbuf = CDK_PIXBUF (object)((((CdkPixbuf*) (void *) ((object))))); |
| 1360 | gboolean notify = TRUE(!(0)); |
| 1361 | |
| 1362 | switch (prop_id) { |
| 1363 | case PROP_COLORSPACE: |
| 1364 | notify = pixbuf->colorspace != g_value_get_enum (value); |
| 1365 | pixbuf->colorspace = g_value_get_enum (value); |
| 1366 | break; |
| 1367 | case PROP_N_CHANNELS: |
| 1368 | notify = pixbuf->n_channels != g_value_get_int (value); |
| 1369 | pixbuf->n_channels = g_value_get_int (value); |
| 1370 | break; |
| 1371 | case PROP_HAS_ALPHA: |
| 1372 | notify = pixbuf->has_alpha != g_value_get_boolean (value); |
| 1373 | pixbuf->has_alpha = g_value_get_boolean (value); |
| 1374 | break; |
| 1375 | case PROP_BITS_PER_SAMPLE: |
| 1376 | notify = pixbuf->bits_per_sample != g_value_get_int (value); |
| 1377 | pixbuf->bits_per_sample = g_value_get_int (value); |
| 1378 | break; |
| 1379 | case PROP_WIDTH: |
| 1380 | notify = pixbuf->width != g_value_get_int (value); |
| 1381 | pixbuf->width = g_value_get_int (value); |
| 1382 | break; |
| 1383 | case PROP_HEIGHT: |
| 1384 | notify = pixbuf->height != g_value_get_int (value); |
| 1385 | pixbuf->height = g_value_get_int (value); |
| 1386 | break; |
| 1387 | case PROP_ROWSTRIDE: |
| 1388 | notify = pixbuf->rowstride != g_value_get_int (value); |
| 1389 | pixbuf->rowstride = g_value_get_int (value); |
| 1390 | break; |
| 1391 | |
| 1392 | /* The following two are a bit strange. Both PROP_PIXELS and |
| 1393 | * PROP_PIXEL_BYTES are G_PARAM_CONSTRUCT_ONLY properties, which means |
| 1394 | * that GObject will generate default values for any missing one and |
| 1395 | * call us for *both*. So, we need to check whether the passed value is |
| 1396 | * not NULL before actually setting pixbuf->storage. |
| 1397 | */ |
| 1398 | case PROP_PIXELS: { |
| 1399 | guchar *pixels = g_value_get_pointer (value); |
| 1400 | |
| 1401 | if (pixels) { |
| 1402 | g_assert (pixbuf->storage == STORAGE_UNINITIALIZED)do { if (__builtin_expect (__extension__ ({ int _g_boolean_var_83 = 0; if (pixbuf->storage == STORAGE_UNINITIALIZED) _g_boolean_var_83 = 1; _g_boolean_var_83; }), 1)) ; else g_assertion_message_expr ("CdkPixbuf", "../cdk-pixbuf/cdk-pixbuf.c", 1402, ((const char *) (__func__)), "pixbuf->storage == STORAGE_UNINITIALIZED" ); } while (0); |
| 1403 | |
| 1404 | pixbuf->storage = STORAGE_PIXELS; |
| 1405 | pixbuf->s.pixels.pixels = pixels; |
| 1406 | pixbuf->s.pixels.destroy_fn = NULL((void*)0); |
| 1407 | pixbuf->s.pixels.destroy_fn_data = NULL((void*)0); |
| 1408 | } else { |
| 1409 | notify = FALSE(0); |
| 1410 | } |
| 1411 | |
| 1412 | break; |
| 1413 | } |
| 1414 | |
| 1415 | case PROP_PIXEL_BYTES: { |
| 1416 | GBytes *bytes = g_value_get_boxed (value); |
| 1417 | |
| 1418 | if (bytes) { |
| 1419 | g_assert (pixbuf->storage == STORAGE_UNINITIALIZED)do { if (__builtin_expect (__extension__ ({ int _g_boolean_var_84 = 0; if (pixbuf->storage == STORAGE_UNINITIALIZED) _g_boolean_var_84 = 1; _g_boolean_var_84; }), 1)) ; else g_assertion_message_expr ("CdkPixbuf", "../cdk-pixbuf/cdk-pixbuf.c", 1419, ((const char *) (__func__)), "pixbuf->storage == STORAGE_UNINITIALIZED" ); } while (0); |
| 1420 | |
| 1421 | pixbuf->storage = STORAGE_BYTES; |
| 1422 | pixbuf->s.bytes.bytes = g_value_dup_boxed (value); |
| 1423 | } else { |
| 1424 | notify = FALSE(0); |
| 1425 | } |
| 1426 | |
| 1427 | break; |
| 1428 | } |
| 1429 | |
| 1430 | default: |
| 1431 | G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec)do { GObject *_glib__object = (GObject*) ((object)); GParamSpec *_glib__pspec = (GParamSpec*) ((pspec)); guint _glib__property_id = ((prop_id)); g_warning ("%s:%d: invalid %s id %u for \"%s\" of type '%s' in '%s'" , "../cdk-pixbuf/cdk-pixbuf.c", 1431, ("property"), _glib__property_id , _glib__pspec->name, g_type_name ((((((GTypeClass*) (((GTypeInstance *) (_glib__pspec))->g_class))->g_type)))), (g_type_name ((((((GTypeClass*) (((GTypeInstance*) (_glib__object))->g_class ))->g_type)))))); } while (0); |
| 1432 | break; |
| 1433 | } |
| 1434 | |
| 1435 | if (notify) |
| 1436 | g_object_notify_by_pspec (G_OBJECT (object)((((GObject*) (void *) ((object))))), pspec); |
| 1437 | } |
| 1438 | |
| 1439 | static void |
| 1440 | cdk_pixbuf_get_property (GObject *object, |
| 1441 | guint prop_id, |
| 1442 | GValue *value, |
| 1443 | GParamSpec *pspec) |
| 1444 | { |
| 1445 | CdkPixbuf *pixbuf = CDK_PIXBUF (object)((((CdkPixbuf*) (void *) ((object))))); |
| 1446 | |
| 1447 | switch (prop_id) { |
| 1448 | case PROP_COLORSPACE: |
| 1449 | g_value_set_enum (value, cdk_pixbuf_get_colorspace (pixbuf)); |
| 1450 | break; |
| 1451 | case PROP_N_CHANNELS: |
| 1452 | g_value_set_int (value, cdk_pixbuf_get_n_channels (pixbuf)); |
| 1453 | break; |
| 1454 | case PROP_HAS_ALPHA: |
| 1455 | g_value_set_boolean (value, cdk_pixbuf_get_has_alpha (pixbuf)); |
| 1456 | break; |
| 1457 | case PROP_BITS_PER_SAMPLE: |
| 1458 | g_value_set_int (value, cdk_pixbuf_get_bits_per_sample (pixbuf)); |
| 1459 | break; |
| 1460 | case PROP_WIDTH: |
| 1461 | g_value_set_int (value, cdk_pixbuf_get_width (pixbuf)); |
| 1462 | break; |
| 1463 | case PROP_HEIGHT: |
| 1464 | g_value_set_int (value, cdk_pixbuf_get_height (pixbuf)); |
| 1465 | break; |
| 1466 | case PROP_ROWSTRIDE: |
| 1467 | g_value_set_int (value, cdk_pixbuf_get_rowstride (pixbuf)); |
| 1468 | break; |
| 1469 | case PROP_PIXELS: |
| 1470 | g_value_set_pointer (value, cdk_pixbuf_get_pixels (pixbuf)); |
| 1471 | break; |
| 1472 | case PROP_PIXEL_BYTES: |
| 1473 | g_value_take_boxed (value, cdk_pixbuf_read_pixel_bytes (pixbuf)); |
| 1474 | break; |
| 1475 | default: |
| 1476 | G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec)do { GObject *_glib__object = (GObject*) ((object)); GParamSpec *_glib__pspec = (GParamSpec*) ((pspec)); guint _glib__property_id = ((prop_id)); g_warning ("%s:%d: invalid %s id %u for \"%s\" of type '%s' in '%s'" , "../cdk-pixbuf/cdk-pixbuf.c", 1476, ("property"), _glib__property_id , _glib__pspec->name, g_type_name ((((((GTypeClass*) (((GTypeInstance *) (_glib__pspec))->g_class))->g_type)))), (g_type_name ((((((GTypeClass*) (((GTypeInstance*) (_glib__object))->g_class ))->g_type)))))); } while (0); |
| 1477 | break; |
| 1478 | } |
| 1479 | } |
| 1480 | |
| 1481 | static void |
| 1482 | make_storage_invalid (CdkPixbuf *pixbuf) |
| 1483 | { |
| 1484 | char *buf; |
| 1485 | gsize bufsize = 3; |
| 1486 | |
| 1487 | buf = g_new0 (char, bufsize)(char *) (__extension__ ({ gsize __n = (gsize) (bufsize); gsize __s = sizeof (char); gpointer __p; if (__s == 1) __p = g_malloc0 (__n); else if (__builtin_constant_p (__n) && (__s == 0 || __n <= (9223372036854775807L *2UL+1UL) / __s)) __p = g_malloc0 (__n * __s); else __p = g_malloc0_n (__n, __s); __p ; })); |
| 1488 | |
| 1489 | pixbuf->storage = STORAGE_BYTES; |
| 1490 | pixbuf->s.bytes.bytes = g_bytes_new_take (buf, bufsize); |
| 1491 | |
| 1492 | pixbuf->colorspace = CDK_COLORSPACE_RGB; |
| 1493 | pixbuf->n_channels = 3; |
| 1494 | pixbuf->bits_per_sample = 8; |
| 1495 | pixbuf->width = 1; |
| 1496 | pixbuf->height = 1; |
| 1497 | pixbuf->rowstride = 3; |
| 1498 | pixbuf->has_alpha = FALSE(0); |
| 1499 | } |
| 1500 | |
| 1501 | static void |
| 1502 | cdk_pixbuf_constructed (GObject *object) |
| 1503 | { |
| 1504 | CdkPixbuf *pixbuf = CDK_PIXBUF (object)((((CdkPixbuf*) (void *) ((object))))); |
| 1505 | |
| 1506 | G_OBJECT_CLASS (cdk_pixbuf_parent_class)((((GObjectClass*) (void *) ((cdk_pixbuf_parent_class)))))->constructed (object); |
| 1507 | |
| 1508 | switch (pixbuf->storage) { |
| 1509 | case STORAGE_UNINITIALIZED: |
| 1510 | /* This means that neither of the construct properties "pixels" nor "pixel-bytes" |
| 1511 | * was specified during a call to g_object_new(). |
| 1512 | * |
| 1513 | * To avoid breaking ABI, we don't emit this warning. We'll want |
| 1514 | * to emit it once we can have fallible construction. |
| 1515 | * |
| 1516 | * g_warning ("pixbuf needs to be constructed with the 'pixels' or 'pixel-bytes' properties"); |
| 1517 | */ |
| 1518 | |
| 1519 | make_storage_invalid (pixbuf); |
| 1520 | break; |
| 1521 | |
| 1522 | case STORAGE_PIXELS: |
| 1523 | g_assert (pixbuf->s.pixels.pixels != NULL)do { if (__builtin_expect (__extension__ ({ int _g_boolean_var_85 = 0; if (pixbuf->s.pixels.pixels != ((void*)0)) _g_boolean_var_85 = 1; _g_boolean_var_85; }), 1)) ; else g_assertion_message_expr ("CdkPixbuf", "../cdk-pixbuf/cdk-pixbuf.c", 1523, ((const char *) (__func__)), "pixbuf->s.pixels.pixels != NULL"); } while (0); |
| 1524 | break; |
| 1525 | |
| 1526 | case STORAGE_BYTES: { |
| 1527 | gsize bytes_size; |
| 1528 | gint width, height; |
| 1529 | gboolean has_alpha; |
| 1530 | |
| 1531 | g_assert (pixbuf->s.bytes.bytes != NULL)do { if (__builtin_expect (__extension__ ({ int _g_boolean_var_86 = 0; if (pixbuf->s.bytes.bytes != ((void*)0)) _g_boolean_var_86 = 1; _g_boolean_var_86; }), 1)) ; else g_assertion_message_expr ("CdkPixbuf", "../cdk-pixbuf/cdk-pixbuf.c", 1531, ((const char *) (__func__)), "pixbuf->s.bytes.bytes != NULL"); } while ( 0); |
| 1532 | |
| 1533 | bytes_size = g_bytes_get_size (pixbuf->s.bytes.bytes); |
| 1534 | width = pixbuf->width; |
| 1535 | height = pixbuf->height; |
| 1536 | has_alpha = pixbuf->has_alpha; |
| 1537 | |
| 1538 | /* This is the same check as in cdk_pixbuf_new_from_bytes() */ |
| 1539 | if (!(bytes_size >= width * height * (has_alpha ? 4 : 3))) { |
| 1540 | g_error ("GBytes is too small to fit the pixbuf's declared width and height"); |
| 1541 | } |
| 1542 | break; |
| 1543 | } |
| 1544 | |
| 1545 | default: |
| 1546 | g_assert_not_reached ()do { g_assertion_message_expr ("CdkPixbuf", "../cdk-pixbuf/cdk-pixbuf.c" , 1546, ((const char*) (__func__)), ((void*)0)); } while (0); |
| 1547 | } |
| 1548 | |
| 1549 | g_assert (pixbuf->storage != STORAGE_UNINITIALIZED)do { if (__builtin_expect (__extension__ ({ int _g_boolean_var_87 = 0; if (pixbuf->storage != STORAGE_UNINITIALIZED) _g_boolean_var_87 = 1; _g_boolean_var_87; }), 1)) ; else g_assertion_message_expr ("CdkPixbuf", "../cdk-pixbuf/cdk-pixbuf.c", 1549, ((const char *) (__func__)), "pixbuf->storage != STORAGE_UNINITIALIZED" ); } while (0); |
| 1550 | } |