2 * Copyright (c) 2017 Samsung Electronics Co., Ltd.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
18 * Derived from Enlightenment file evas_image_load_ico.c[1] which is licensed
19 * under the BSD 2-clause license[2] reproduced below.
21 * [1][http://web.archive.org/web/20141201151111/http://git.enlightenment.org/core/efl.git/tree/src/modules/evas/loaders/ico/evas_image_load_ico.c]
22 * [2][http://web.archive.org/web/20140717012400/https://git.enlightenment.org/core/efl.git/about/]
24 * Copyright (C) 2002-2012 Carsten Haitzler, Dan Sinclair, Mike Blumenkrantz,
25 * Samsung Electronics and various contributors (see AUTHORS)
27 * All rights reserved.
29 * Redistribution and use in source and binary forms, with or without
30 * modification, are permitted provided that the following conditions are met:
32 * 1. Redistributions of source code must retain the above copyright
33 * notice, this list of conditions and the following disclaimer.
34 * 2. Redistributions in binary form must reproduce the above copyright
35 * notice, this list of conditions and the following disclaimer in the
36 * documentation and/or other materials provided with the distribution.
38 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
39 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
40 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
41 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
42 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
43 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
44 * OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
45 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
46 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
47 * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
51 #include <dali/internal/imaging/common/loader-ico.h>
55 #include <dali/public-api/common/dali-vector.h>
58 #include <dali/integration-api/debug.h>
59 #include <dali/devel-api/adaptor-framework/pixel-buffer.h>
61 #include <dali/internal/system/common/file-closer.h>
63 using namespace Dali::Internal::Platform;
68 namespace TizenPlatform
73 // Reserved 2 bytes + type 2 bytes + count 2 bytes + count * 16 bytes
74 const unsigned char ICO_FILE_HEADER = 22;
75 // Info header 40 bytes = size 4 bytes + width 4 bytes + height 4 bytes + planes 2 bytes + bitcount 2 bytes
76 // + compression 4 bytes + imagesize 4 bytes + xpixelsPerM 4 bytes + ypixelsPerM 4 bytes + colorsUsed 4 bytes + colorImportant 4 bytes
77 // besides, there are rgba color data = numberOfColors * 4 bytes
78 const unsigned char ICO_IMAGE_INFO_HEADER = 40;
80 typedef unsigned char DATA8;
81 #define A_VAL(p) (reinterpret_cast< DATA8 * >( p )[3])
83 #define RGB_JOIN(r,g,b) \
84 (((r) << 16) + ((g) << 8) + (b))
86 #define ARGB_JOIN(a,r,g,b) \
87 (((a) << 24) + ((r) << 16) + ((g) << 8) + (b))
89 bool read_ushort(unsigned char *map, size_t length, size_t *position, unsigned short *ret)
93 if (*position + 2 > length)
97 b[0] = map[(*position)++];
98 b[1] = map[(*position)++];
99 *ret = (b[1] << 8) | b[0];
103 bool read_uint(unsigned char *map, size_t length, size_t *position, unsigned int *ret)
108 if (*position + 4 > length)
112 for (i = 0; i < 4; i++)
114 b[i] = map[(*position)++];
116 *ret = ARGB_JOIN(b[3], b[2], b[1], b[0]);
120 bool read_uchar(unsigned char *map, size_t length, size_t *position, unsigned char *ret)
122 if (*position + 1 > length)
126 *ret = map[(*position)++];
130 bool read_mem(unsigned char *map, size_t length, size_t *position, void *buffer, int size)
132 if (*position + size > length)
136 memcpy(buffer, map + *position, size);
162 unsigned int bmoffset, bmsize;
165 bool LoadIcoHeaderHelper( FILE* fp,
167 Dali::Vector<unsigned char>& map,
168 unsigned int& fsize )
170 memset( &chosen, 0, sizeof(chosen) );
174 DALI_LOG_ERROR("Error loading bitmap\n");
181 if( InternalFile::fseek(fp,0,SEEK_END) )
183 DALI_LOG_ERROR("Error seeking ICO data\n");
187 long positionIndicator = InternalFile::ftell(fp);
190 if( positionIndicator > -1L )
192 fsize = static_cast<unsigned int>(positionIndicator);
200 if( InternalFile::fseek(fp, 0, SEEK_SET) )
202 DALI_LOG_ERROR("Error seeking ICO data\n");
206 if (fsize < (ICO_FILE_HEADER + ICO_IMAGE_INFO_HEADER)) //6 + 16 + 40
212 if(InternalFile::fread(&map[0], 1, fsize, fp) != fsize)
214 DALI_LOG_WARNING("image file read opeation error!\n");
218 int search = BIGGEST;
219 unsigned short reserved, type, count;
220 if (!read_ushort(&map[0], fsize, &position, &reserved))
224 if (!read_ushort(&map[0], fsize, &position, &type))
228 if (!read_ushort(&map[0], fsize, &position, &count))
232 if (!((reserved == 0) &&
233 ((type == ICON) || (type == CURSOR)) && (count != 0)))
239 bool have_choice = false;
241 for (unsigned short i = 0; i < count; i++)
243 unsigned char tw = 0, th = 0, tcols = 0;
244 if (!read_uchar(&map[0], fsize, &position, &tw))
253 if (!read_uchar(&map[0], fsize, &position, &th))
263 if (!read_uchar(&map[0], fsize, &position, &tcols))
268 if (!read_uchar(&map[0], fsize, &position, &byte))
272 if (!read_ushort(&map[0], fsize, &position, &word))
282 if (!read_ushort(&map[0], fsize, &position, &word))
292 // 0 colors means 256 for paletized modes.
293 // Note: We must not do this conversion for bpp greater than 8, as there is no palette.
294 if( bpp <= 8 && cols == 0 )
300 unsigned int bmoffset, bmsize;
301 if (!read_uint(&map[0], fsize, &position, &bmsize))
305 if (!read_uint(&map[0], fsize, &position, &bmoffset))
309 if ((bmsize <= 0) || (bmoffset <= 0) || (bmoffset >= fsize))
313 if (search == BIGGEST)
316 if ((!have_choice) ||
317 ((pdelta >= chosen.pdelta) &&
318 (((bpp >= 3) && (bpp >= chosen.bpp)) ||
319 ((bpp < 3) && (cols >= chosen.cols)))))
322 chosen.pdelta = pdelta;
327 chosen.planes = planes;
328 chosen.bmsize = bmsize;
329 chosen.bmoffset = bmoffset;
334 if (chosen.bmoffset == 0)
344 bool LoadIcoHeader( const Dali::ImageLoader::Input& input, unsigned int& width, unsigned int& height )
347 Dali::Vector<unsigned char> map;
349 FILE* const fp = input.file;
351 if ( false == LoadIcoHeaderHelper(fp, chosen, map, fsize) )
362 bool LoadBitmapFromIco( const Dali::ImageLoader::Input& input, Dali::Devel::PixelBuffer& bitmap )
365 Dali::Vector<unsigned char> map;
367 FILE* const fp = input.file;
369 if ( false == LoadIcoHeaderHelper(fp, chosen, map, fsize) )
374 Dali::Vector<unsigned int> pal;
375 Dali::Vector<unsigned int> surface;
376 Dali::Vector<unsigned char> maskbuf;
377 Dali::Vector<unsigned char> pixbuf;
386 size_t position = chosen.bmoffset;//22 == position
388 unsigned int w = chosen.w;
389 unsigned int h = chosen.h;
390 unsigned int cols = chosen.cols;
392 // read bmp header time... let's do some checking
393 if (!read_uint(&map[0], fsize, &position, &dword))
395 return false; // headersize - dont care
397 if (!read_uint(&map[0], fsize, &position, &dword))
399 return false; // width
409 if (!read_uint(&map[0], fsize, &position, &dword))
411 return false; // height
415 if (dword != (h * 2))
423 DALI_LOG_WARNING("Broken ICO file!\n");
426 // Set up the surface as soon as we have the width and height, so we have a black image if there are any further errors.
427 surface.Resize( w * h * 4 );
428 memset( &surface[0], 0, w * h * 4 );
430 if (!read_ushort(&map[0], fsize, &position, &word))
432 return false; // planes
435 if (!read_ushort(&map[0], fsize, &position, &word))
437 return false; // bitcount
439 unsigned int bitcount = word;
440 if (!read_uint(&map[0], fsize, &position, &dword))
442 return false; // compression
444 //compression = dword;
445 if (!read_uint(&map[0], fsize, &position, &dword))
447 return false; // imagesize
450 if (!read_uint(&map[0], fsize, &position, &dword))
452 return false; // z pixels per m
454 if (!read_uint(&map[0], fsize, &position, &dword))
456 return false; // y pizels per m
458 if (!read_uint(&map[0], fsize, &position, &dword))
460 return false; // colors used
462 //colorsused = dword;
463 if (!read_uint(&map[0], fsize, &position, &dword))
465 return false; // colors important
468 for( unsigned int i = 0; i < cols ; i ++ )
470 unsigned char a, r, g, b;
472 if (!read_uchar(&map[0], fsize, &position, &b))
476 if (!read_uchar(&map[0], fsize, &position, &g))
480 if (!read_uchar(&map[0], fsize, &position, &r))
484 if (!read_uchar(&map[0], fsize, &position, &a))
488 pal[i] = ARGB_JOIN( 0xff, b, g, r );
491 // This is the reference way of calculating the total number of bytes necessary to store one row of pixels.
492 unsigned int stride = ( ( ( bitcount * w ) + 31 ) / 32 ) * 4;
493 unsigned int bitStride = ( ( w + 31 ) / 32 ) * 4;
495 // Pixbuf only ever contains one scanline worth of data.
496 pixbuf.Resize( stride );
497 maskbuf.Resize( bitStride * h );
499 // Handle different bits-per-pixel.
500 // Note: Switch is in order of most common format first.
505 unsigned char* p = &map[position];
506 pix = &surface[0] + ( ( h - 1 ) * w );
508 for( unsigned int i = 0; i < h; i++ )
510 for( unsigned int j = 0; j < w; j++ )
512 *pix++ = ARGB_JOIN( p[3], p[0], p[1], p[2] );
515 // Move the output up 1 line (we subtract 2 lines because we moved forward one line while copying).
523 for( unsigned int i = 0; i < h; i++ )
525 pix = &surface[0] + ( ( h - 1 - i ) * w );
526 if( !read_mem( &map[0], fsize, &position, &pixbuf[0], stride ) )
530 unsigned char* p = &pixbuf[0];
531 for( unsigned int j = 0; j < w; j++ )
533 *pix++ = ARGB_JOIN( 0xff, p[0], p[1], p[2] );
542 for( unsigned int i = 0; i < h; i++ )
544 pix = &surface[0] + ( ( h - 1 - i ) * w );
545 if( !read_mem( &map[0], fsize, &position, &pixbuf[0], stride ) )
549 unsigned char* p = &pixbuf[0];
550 for( unsigned int j = 0; j < w; j++ )
560 for( unsigned int i = 0; i < h; i++ )
562 pix = &surface[0] + ( ( h - 1 - i ) * w );
563 if( !read_mem( &map[0], fsize, &position, &pixbuf[0], stride ) )
567 unsigned char* p = &pixbuf[0];
568 for( unsigned int j = 0; j < w; j++ )
572 *pix = pal[*p & 0x0f];
587 for( unsigned int i = 0; i < h; i++ )
589 pix = &surface[0] + ( ( h - 1 - i ) * w );
590 if( !read_mem( &map[0], fsize, &position, &pixbuf[0], stride ) )
594 unsigned char* p = &pixbuf[0];
596 for( unsigned int j = 0; j < w; j += 8 )
598 *pix++ = pal[ *p >> 7 ];
599 *pix++ = pal[ *p >> 6 & 0x01 ];
600 *pix++ = pal[ *p >> 5 & 0x01 ];
601 *pix++ = pal[ *p >> 4 & 0x01 ];
602 *pix++ = pal[ *p >> 3 & 0x01 ];
603 *pix++ = pal[ *p >> 2 & 0x01 ];
604 *pix++ = pal[ *p >> 1 & 0x01 ];
605 *pix++ = pal[ *p >> 0 & 0x01 ];
615 DALI_LOG_WARNING( "Image file contains unsupported bits-per-pixel %d\n", bitcount );
620 // From the spec: If bpp is less than 32, there will be a 1bpp mask bitmap also.
623 if( !read_mem( &map[0], fsize, &position, &maskbuf[0], bitStride * h ) )
629 // Precalc to save time in the loops.
630 unsigned int bytesPerWidth = w / 8;
631 unsigned int bytesRemainingPerWidth = w - ( bytesPerWidth << 3 );
633 // Loop for each line of the image.
634 for( unsigned int i = 0; i < h; ++i )
636 unsigned char *m = &maskbuf[0] + ( bitStride * i );
637 pix = &surface[0] + ( ( h - 1 - i ) * w );
639 // Do chunks of 8 pixels first so mask operations can be unrolled.
640 for( unsigned int j = 0; j < bytesPerWidth; ++j )
642 // Unrolled 8 bits of the mask to avoid many conditions and branches.
643 A_VAL( pix++ ) = ( *m & ( 1 << 7 ) ) ? 0x00 : 0xff;
644 A_VAL( pix++ ) = ( *m & ( 1 << 6 ) ) ? 0x00 : 0xff;
645 A_VAL( pix++ ) = ( *m & ( 1 << 5 ) ) ? 0x00 : 0xff;
646 A_VAL( pix++ ) = ( *m & ( 1 << 4 ) ) ? 0x00 : 0xff;
647 A_VAL( pix++ ) = ( *m & ( 1 << 3 ) ) ? 0x00 : 0xff;
648 A_VAL( pix++ ) = ( *m & ( 1 << 2 ) ) ? 0x00 : 0xff;
649 A_VAL( pix++ ) = ( *m & ( 1 << 1 ) ) ? 0x00 : 0xff;
650 A_VAL( pix++ ) = ( *m & ( 1 << 0 ) ) ? 0x00 : 0xff;
654 // Handle any remaining width ( < 8 ) or images that are < 8 wide.
655 if( bytesRemainingPerWidth > 0 )
657 for( unsigned int j = 0; j < bytesRemainingPerWidth; ++j )
659 // Note: Although we are doing less that a bytes worth of mask, we still always start on the first bit.
660 // If the image is smaller than 8 pixels wide, each mask will still start on a new byte.
661 A_VAL( pix++ ) = ( *m & ( 1 << ( 7 - j ) ) ) ? 0x00 : 0xff;
668 bitmap = Dali::Devel::PixelBuffer::New(w, h, Pixel::Format::RGBA8888);
669 auto pixels = bitmap.GetBuffer();
670 memcpy( pixels, &surface[0], w * h * 4 );