1/*
2%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
3%                                                                             %
4%                                                                             %
5%                                                                             %
6%                        TTTTT  IIIII  L      EEEEE                           %
7%                          T      I    L      E                               %
8%                          T      I    L      EEE                             %
9%                          T      I    L      E                               %
10%                          T    IIIII  LLLLL  EEEEE                           %
11%                                                                             %
12%                                                                             %
13%                     Return A Tiled Image Using Texture.                     %
14%                                                                             %
15%                              Software Design                                %
16%                                   Cristy                                    %
17%                                 July 1992                                   %
18%                                                                             %
19%                                                                             %
20%  Copyright 1999-2016 ImageMagick Studio LLC, a non-profit organization      %
21%  dedicated to making software imaging solutions freely available.           %
22%                                                                             %
23%  You may not use this file except in compliance with the License.  You may  %
24%  obtain a copy of the License at                                            %
25%                                                                             %
26%    http://www.imagemagick.org/script/license.php                            %
27%                                                                             %
28%  Unless required by applicable law or agreed to in writing, software        %
29%  distributed under the License is distributed on an "AS IS" BASIS,          %
30%  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.   %
31%  See the License for the specific language governing permissions and        %
32%  limitations under the License.                                             %
33%                                                                             %
34%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
35%
36%
37*/
38
39/*
40  Include declarations.
41*/
42#include "MagickCore/studio.h"
43#include "MagickCore/blob.h"
44#include "MagickCore/blob-private.h"
45#include "MagickCore/constitute.h"
46#include "MagickCore/exception.h"
47#include "MagickCore/exception-private.h"
48#include "MagickCore/image.h"
49#include "MagickCore/image-private.h"
50#include "MagickCore/list.h"
51#include "MagickCore/magick.h"
52#include "MagickCore/memory_.h"
53#include "MagickCore/monitor.h"
54#include "MagickCore/monitor-private.h"
55#include "MagickCore/quantum-private.h"
56#include "MagickCore/static.h"
57#include "MagickCore/string_.h"
58#include "MagickCore/module.h"
59
60/*
61%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
62%                                                                             %
63%                                                                             %
64%                                                                             %
65%   R e a d T I L E I m a g e                                                 %
66%                                                                             %
67%                                                                             %
68%                                                                             %
69%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
70%
71%  ReadTILEImage tiles a texture on an image.  It allocates the
72%  memory necessary for the new Image structure and returns a pointer to the
73%  new image.
74%
75%  The format of the ReadTILEImage method is:
76%
77%      Image *ReadTILEImage(const ImageInfo *image_info,
78%        ExceptionInfo *exception)
79%
80%  A description of each parameter follows:
81%
82%    o image_info: the image info.
83%
84%    o exception: return any errors or warnings in this structure.
85%
86*/
87static Image *ReadTILEImage(const ImageInfo *image_info,
88  ExceptionInfo *exception)
89{
90  Image
91    *image,
92    *tile_image;
93
94  ImageInfo
95    *read_info;
96
97  MagickBooleanType
98    status;
99
100  /*
101    Initialize Image structure.
102  */
103  assert(image_info != (const ImageInfo *) NULL);
104  assert(image_info->signature == MagickCoreSignature);
105  if (image_info->debug != MagickFalse)
106    (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",
107      image_info->filename);
108  assert(exception != (ExceptionInfo *) NULL);
109  assert(exception->signature == MagickCoreSignature);
110  read_info=CloneImageInfo(image_info);
111  SetImageInfoBlob(read_info,(void *) NULL,0);
112  *read_info->magick='\0';
113  tile_image=ReadImage(read_info,exception);
114  read_info=DestroyImageInfo(read_info);
115  if (tile_image == (Image *) NULL)
116    return((Image *) NULL);
117  image=AcquireImage(image_info,exception);
118  if ((image->columns == 0) || (image->rows == 0))
119    ThrowReaderException(OptionError,"MustSpecifyImageSize");
120  if (*image_info->filename == '\0')
121    ThrowReaderException(OptionError,"MustSpecifyAnImageName");
122  status=SetImageExtent(image,image->columns,image->rows,exception);
123  if (status == MagickFalse)
124    return(DestroyImageList(image));
125  image->colorspace=tile_image->colorspace;
126  image->alpha_trait=tile_image->alpha_trait;
127  if (image->alpha_trait != UndefinedPixelTrait)
128    (void) SetImageBackgroundColor(image,exception);
129  (void) CopyMagickString(image->filename,image_info->filename,MagickPathExtent);
130  if (LocaleCompare(tile_image->magick,"PATTERN") == 0)
131    {
132      tile_image->tile_offset.x=0;
133      tile_image->tile_offset.y=0;
134    }
135  (void) TextureImage(image,tile_image,exception);
136  tile_image=DestroyImage(tile_image);
137  if (image->colorspace == GRAYColorspace)
138    image->type=GrayscaleType;
139  return(GetFirstImageInList(image));
140}
141
142/*
143%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
144%                                                                             %
145%                                                                             %
146%                                                                             %
147%   R e g i s t e r T I L E I m a g e                                         %
148%                                                                             %
149%                                                                             %
150%                                                                             %
151%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
152%
153%  RegisterTILEImage() adds attributes for the TILE image format to
154%  the list of supported formats.  The attributes include the image format
155%  tag, a method to read and/or write the format, whether the format
156%  supports the saving of more than one frame to the same file or blob,
157%  whether the format supports native in-memory I/O, and a brief
158%  description of the format.
159%
160%  The format of the RegisterTILEImage method is:
161%
162%      size_t RegisterTILEImage(void)
163%
164*/
165ModuleExport size_t RegisterTILEImage(void)
166{
167  MagickInfo
168    *entry;
169
170  entry=AcquireMagickInfo("TILE","TILE","Tile image with a texture");
171  entry->decoder=(DecodeImageHandler *) ReadTILEImage;
172  entry->flags|=CoderRawSupportFlag;
173  entry->flags|=CoderEndianSupportFlag;
174  entry->format_type=ImplicitFormatType;
175  (void) RegisterMagickInfo(entry);
176  return(MagickImageCoderSignature);
177}
178
179/*
180%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
181%                                                                             %
182%                                                                             %
183%                                                                             %
184%   U n r e g i s t e r T I L E I m a g e                                     %
185%                                                                             %
186%                                                                             %
187%                                                                             %
188%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
189%
190%  UnregisterTILEImage() removes format registrations made by the
191%  TILE module from the list of supported formats.
192%
193%  The format of the UnregisterTILEImage method is:
194%
195%      UnregisterTILEImage(void)
196%
197*/
198ModuleExport void UnregisterTILEImage(void)
199{
200  (void) UnregisterMagickInfo("TILE");
201}
202