sync with trunk r46493
[reactos.git] / dll / win32 / gdiplus / image.c
1 /*
2 * Copyright (C) 2007 Google (Evan Stade)
3 *
4 * This library is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU Lesser General Public
6 * License as published by the Free Software Foundation; either
7 * version 2.1 of the License, or (at your option) any later version.
8 *
9 * This library is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * Lesser General Public License for more details.
13 *
14 * You should have received a copy of the GNU Lesser General Public
15 * License along with this library; if not, write to the Free Software
16 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
17 */
18
19 #include <stdarg.h>
20
21 #define NONAMELESSUNION
22
23 #include "windef.h"
24 #include "winbase.h"
25 #include "winuser.h"
26 #include "wingdi.h"
27
28 #define COBJMACROS
29 #include "objbase.h"
30 #include "olectl.h"
31 #include "ole2.h"
32
33 #include "initguid.h"
34 #include "wincodec.h"
35 #include "gdiplus.h"
36 #include "gdiplus_private.h"
37 #include "wine/debug.h"
38
39 WINE_DEFAULT_DEBUG_CHANNEL(gdiplus);
40
41 #define PIXELFORMATBPP(x) ((x) ? ((x) >> 8) & 255 : 24)
42
43 static INT ipicture_pixel_height(IPicture *pic)
44 {
45 HDC hdcref;
46 OLE_YSIZE_HIMETRIC y;
47
48 IPicture_get_Height(pic, &y);
49
50 hdcref = GetDC(0);
51
52 y = MulDiv(y, GetDeviceCaps(hdcref, LOGPIXELSY), INCH_HIMETRIC);
53 ReleaseDC(0, hdcref);
54
55 return y;
56 }
57
58 static INT ipicture_pixel_width(IPicture *pic)
59 {
60 HDC hdcref;
61 OLE_XSIZE_HIMETRIC x;
62
63 IPicture_get_Width(pic, &x);
64
65 hdcref = GetDC(0);
66
67 x = MulDiv(x, GetDeviceCaps(hdcref, LOGPIXELSX), INCH_HIMETRIC);
68
69 ReleaseDC(0, hdcref);
70
71 return x;
72 }
73
74 GpStatus WINGDIPAPI GdipBitmapApplyEffect(GpBitmap* bitmap, CGpEffect* effect,
75 RECT* roi, BOOL useAuxData, VOID** auxData, INT* auxDataSize)
76 {
77 FIXME("(%p %p %p %d %p %p): stub\n", bitmap, effect, roi, useAuxData, auxData, auxDataSize);
78 /*
79 * Note: According to Jose Roca's GDI+ docs, this function is not
80 * implemented in Windows's GDI+.
81 */
82 return NotImplemented;
83 }
84
85 GpStatus WINGDIPAPI GdipBitmapCreateApplyEffect(GpBitmap** inputBitmaps,
86 INT numInputs, CGpEffect* effect, RECT* roi, RECT* outputRect,
87 GpBitmap** outputBitmap, BOOL useAuxData, VOID** auxData, INT* auxDataSize)
88 {
89 FIXME("(%p %d %p %p %p %p %d %p %p): stub\n", inputBitmaps, numInputs, effect, roi, outputRect, outputBitmap, useAuxData, auxData, auxDataSize);
90 /*
91 * Note: According to Jose Roca's GDI+ docs, this function is not
92 * implemented in Windows's GDI+.
93 */
94 return NotImplemented;
95 }
96
97 static inline void getpixel_1bppIndexed(BYTE *index, const BYTE *row, UINT x)
98 {
99 *index = (row[x/8]>>(7-x%8)) & 1;
100 }
101
102 static inline void getpixel_4bppIndexed(BYTE *index, const BYTE *row, UINT x)
103 {
104 if (x & 1)
105 *index = row[x/2]&0xf;
106 else
107 *index = row[x/2]>>4;
108 }
109
110 static inline void getpixel_8bppIndexed(BYTE *index, const BYTE *row, UINT x)
111 {
112 *index = row[x];
113 }
114
115 static inline void getpixel_16bppGrayScale(BYTE *r, BYTE *g, BYTE *b, BYTE *a,
116 const BYTE *row, UINT x)
117 {
118 *r = *g = *b = row[x*2+1];
119 *a = 255;
120 }
121
122 static inline void getpixel_16bppRGB555(BYTE *r, BYTE *g, BYTE *b, BYTE *a,
123 const BYTE *row, UINT x)
124 {
125 WORD pixel = *((WORD*)(row)+x);
126 *r = (pixel>>7&0xf8)|(pixel>>12&0x7);
127 *g = (pixel>>2&0xf8)|(pixel>>6&0x7);
128 *b = (pixel<<3&0xf8)|(pixel>>2&0x7);
129 *a = 255;
130 }
131
132 static inline void getpixel_16bppRGB565(BYTE *r, BYTE *g, BYTE *b, BYTE *a,
133 const BYTE *row, UINT x)
134 {
135 WORD pixel = *((WORD*)(row)+x);
136 *r = (pixel>>8&0xf8)|(pixel>>13&0x7);
137 *g = (pixel>>3&0xfc)|(pixel>>9&0x3);
138 *b = (pixel<<3&0xf8)|(pixel>>2&0x7);
139 *a = 255;
140 }
141
142 static inline void getpixel_16bppARGB1555(BYTE *r, BYTE *g, BYTE *b, BYTE *a,
143 const BYTE *row, UINT x)
144 {
145 WORD pixel = *((WORD*)(row)+x);
146 *r = (pixel>>7&0xf8)|(pixel>>12&0x7);
147 *g = (pixel>>2&0xf8)|(pixel>>6&0x7);
148 *b = (pixel<<3&0xf8)|(pixel>>2&0x7);
149 if ((pixel&0x8000) == 0x8000)
150 *a = 255;
151 else
152 *a = 0;
153 }
154
155 static inline void getpixel_24bppRGB(BYTE *r, BYTE *g, BYTE *b, BYTE *a,
156 const BYTE *row, UINT x)
157 {
158 *r = row[x*3+2];
159 *g = row[x*3+1];
160 *b = row[x*3];
161 *a = 255;
162 }
163
164 static inline void getpixel_32bppRGB(BYTE *r, BYTE *g, BYTE *b, BYTE *a,
165 const BYTE *row, UINT x)
166 {
167 *r = row[x*4+2];
168 *g = row[x*4+1];
169 *b = row[x*4];
170 *a = 255;
171 }
172
173 static inline void getpixel_32bppARGB(BYTE *r, BYTE *g, BYTE *b, BYTE *a,
174 const BYTE *row, UINT x)
175 {
176 *r = row[x*4+2];
177 *g = row[x*4+1];
178 *b = row[x*4];
179 *a = row[x*4+3];
180 }
181
182 static inline void getpixel_32bppPARGB(BYTE *r, BYTE *g, BYTE *b, BYTE *a,
183 const BYTE *row, UINT x)
184 {
185 *a = row[x*4+3];
186 if (*a == 0)
187 *r = *g = *b = 0;
188 else
189 {
190 *r = row[x*4+2] * 255 / *a;
191 *g = row[x*4+1] * 255 / *a;
192 *b = row[x*4] * 255 / *a;
193 }
194 }
195
196 static inline void getpixel_48bppRGB(BYTE *r, BYTE *g, BYTE *b, BYTE *a,
197 const BYTE *row, UINT x)
198 {
199 *r = row[x*6+5];
200 *g = row[x*6+3];
201 *b = row[x*6+1];
202 *a = 255;
203 }
204
205 static inline void getpixel_64bppARGB(BYTE *r, BYTE *g, BYTE *b, BYTE *a,
206 const BYTE *row, UINT x)
207 {
208 *r = row[x*8+5];
209 *g = row[x*8+3];
210 *b = row[x*8+1];
211 *a = row[x*8+7];
212 }
213
214 static inline void getpixel_64bppPARGB(BYTE *r, BYTE *g, BYTE *b, BYTE *a,
215 const BYTE *row, UINT x)
216 {
217 *a = row[x*8+7];
218 if (*a == 0)
219 *r = *g = *b = 0;
220 else
221 {
222 *r = row[x*8+5] * 255 / *a;
223 *g = row[x*8+3] * 255 / *a;
224 *b = row[x*8+1] * 255 / *a;
225 }
226 }
227
228 GpStatus WINGDIPAPI GdipBitmapGetPixel(GpBitmap* bitmap, INT x, INT y,
229 ARGB *color)
230 {
231 BYTE r, g, b, a;
232 BYTE index;
233 BYTE *row;
234 TRACE("%p %d %d %p\n", bitmap, x, y, color);
235
236 if(!bitmap || !color ||
237 x < 0 || y < 0 || x >= bitmap->width || y >= bitmap->height)
238 return InvalidParameter;
239
240 row = bitmap->bits+bitmap->stride*y;
241
242 switch (bitmap->format)
243 {
244 case PixelFormat1bppIndexed:
245 getpixel_1bppIndexed(&index,row,x);
246 break;
247 case PixelFormat4bppIndexed:
248 getpixel_4bppIndexed(&index,row,x);
249 break;
250 case PixelFormat8bppIndexed:
251 getpixel_8bppIndexed(&index,row,x);
252 break;
253 case PixelFormat16bppGrayScale:
254 getpixel_16bppGrayScale(&r,&g,&b,&a,row,x);
255 break;
256 case PixelFormat16bppRGB555:
257 getpixel_16bppRGB555(&r,&g,&b,&a,row,x);
258 break;
259 case PixelFormat16bppRGB565:
260 getpixel_16bppRGB565(&r,&g,&b,&a,row,x);
261 break;
262 case PixelFormat16bppARGB1555:
263 getpixel_16bppARGB1555(&r,&g,&b,&a,row,x);
264 break;
265 case PixelFormat24bppRGB:
266 getpixel_24bppRGB(&r,&g,&b,&a,row,x);
267 break;
268 case PixelFormat32bppRGB:
269 getpixel_32bppRGB(&r,&g,&b,&a,row,x);
270 break;
271 case PixelFormat32bppARGB:
272 getpixel_32bppARGB(&r,&g,&b,&a,row,x);
273 break;
274 case PixelFormat32bppPARGB:
275 getpixel_32bppPARGB(&r,&g,&b,&a,row,x);
276 break;
277 case PixelFormat48bppRGB:
278 getpixel_48bppRGB(&r,&g,&b,&a,row,x);
279 break;
280 case PixelFormat64bppARGB:
281 getpixel_64bppARGB(&r,&g,&b,&a,row,x);
282 break;
283 case PixelFormat64bppPARGB:
284 getpixel_64bppPARGB(&r,&g,&b,&a,row,x);
285 break;
286 default:
287 FIXME("not implemented for format 0x%x\n", bitmap->format);
288 return NotImplemented;
289 }
290
291 if (bitmap->format & PixelFormatIndexed)
292 *color = bitmap->image.palette_entries[index];
293 else
294 *color = a<<24|r<<16|g<<8|b;
295
296 return Ok;
297 }
298
299 static inline void setpixel_16bppGrayScale(BYTE r, BYTE g, BYTE b, BYTE a,
300 BYTE *row, UINT x)
301 {
302 *((WORD*)(row)+x) = (r+g+b)*85;
303 }
304
305 static inline void setpixel_16bppRGB555(BYTE r, BYTE g, BYTE b, BYTE a,
306 BYTE *row, UINT x)
307 {
308 *((WORD*)(row)+x) = (r<<7&0x7c00)|
309 (g<<2&0x03e0)|
310 (b>>3&0x001f);
311 }
312
313 static inline void setpixel_16bppRGB565(BYTE r, BYTE g, BYTE b, BYTE a,
314 BYTE *row, UINT x)
315 {
316 *((WORD*)(row)+x) = (r<<8&0xf800)|
317 (g<<3&0x07e0)|
318 (b>>3&0x001f);
319 }
320
321 static inline void setpixel_16bppARGB1555(BYTE r, BYTE g, BYTE b, BYTE a,
322 BYTE *row, UINT x)
323 {
324 *((WORD*)(row)+x) = (a<<8&0x8000)|
325 (r<<7&0x7c00)|
326 (g<<2&0x03e0)|
327 (b>>3&0x001f);
328 }
329
330 static inline void setpixel_24bppRGB(BYTE r, BYTE g, BYTE b, BYTE a,
331 BYTE *row, UINT x)
332 {
333 row[x*3+2] = r;
334 row[x*3+1] = g;
335 row[x*3] = b;
336 }
337
338 static inline void setpixel_32bppRGB(BYTE r, BYTE g, BYTE b, BYTE a,
339 BYTE *row, UINT x)
340 {
341 *((DWORD*)(row)+x) = (r<<16)|(g<<8)|b;
342 }
343
344 static inline void setpixel_32bppARGB(BYTE r, BYTE g, BYTE b, BYTE a,
345 BYTE *row, UINT x)
346 {
347 *((DWORD*)(row)+x) = (a<<24)|(r<<16)|(g<<8)|b;
348 }
349
350 static inline void setpixel_32bppPARGB(BYTE r, BYTE g, BYTE b, BYTE a,
351 BYTE *row, UINT x)
352 {
353 r = r * a / 255;
354 g = g * a / 255;
355 b = b * a / 255;
356 *((DWORD*)(row)+x) = (a<<24)|(r<<16)|(g<<8)|b;
357 }
358
359 static inline void setpixel_48bppRGB(BYTE r, BYTE g, BYTE b, BYTE a,
360 BYTE *row, UINT x)
361 {
362 row[x*6+5] = row[x*6+4] = r;
363 row[x*6+3] = row[x*6+2] = g;
364 row[x*6+1] = row[x*6] = b;
365 }
366
367 static inline void setpixel_64bppARGB(BYTE r, BYTE g, BYTE b, BYTE a,
368 BYTE *row, UINT x)
369 {
370 UINT64 a64=a, r64=r, g64=g, b64=b;
371 *((UINT64*)(row)+x) = (a64<<56)|(a64<<48)|(r64<<40)|(r64<<32)|(g64<<24)|(g64<<16)|(b64<<8)|b64;
372 }
373
374 static inline void setpixel_64bppPARGB(BYTE r, BYTE g, BYTE b, BYTE a,
375 BYTE *row, UINT x)
376 {
377 UINT64 a64, r64, g64, b64;
378 a64 = a * 257;
379 r64 = r * a / 255;
380 g64 = g * a / 255;
381 b64 = b * a / 255;
382 *((UINT64*)(row)+x) = (a64<<48)|(r64<<32)|(g64<<16)|b64;
383 }
384
385 GpStatus WINGDIPAPI GdipBitmapSetPixel(GpBitmap* bitmap, INT x, INT y,
386 ARGB color)
387 {
388 BYTE a, r, g, b;
389 BYTE *row;
390 TRACE("bitmap:%p, x:%d, y:%d, color:%08x\n", bitmap, x, y, color);
391
392 if(!bitmap || x < 0 || y < 0 || x >= bitmap->width || y >= bitmap->height)
393 return InvalidParameter;
394
395 a = color>>24;
396 r = color>>16;
397 g = color>>8;
398 b = color;
399
400 row = bitmap->bits + bitmap->stride * y;
401
402 switch (bitmap->format)
403 {
404 case PixelFormat16bppGrayScale:
405 setpixel_16bppGrayScale(r,g,b,a,row,x);
406 break;
407 case PixelFormat16bppRGB555:
408 setpixel_16bppRGB555(r,g,b,a,row,x);
409 break;
410 case PixelFormat16bppRGB565:
411 setpixel_16bppRGB565(r,g,b,a,row,x);
412 break;
413 case PixelFormat16bppARGB1555:
414 setpixel_16bppARGB1555(r,g,b,a,row,x);
415 break;
416 case PixelFormat24bppRGB:
417 setpixel_24bppRGB(r,g,b,a,row,x);
418 break;
419 case PixelFormat32bppRGB:
420 setpixel_32bppRGB(r,g,b,a,row,x);
421 break;
422 case PixelFormat32bppARGB:
423 setpixel_32bppARGB(r,g,b,a,row,x);
424 break;
425 case PixelFormat32bppPARGB:
426 setpixel_32bppPARGB(r,g,b,a,row,x);
427 break;
428 case PixelFormat48bppRGB:
429 setpixel_48bppRGB(r,g,b,a,row,x);
430 break;
431 case PixelFormat64bppARGB:
432 setpixel_64bppARGB(r,g,b,a,row,x);
433 break;
434 case PixelFormat64bppPARGB:
435 setpixel_64bppPARGB(r,g,b,a,row,x);
436 break;
437 default:
438 FIXME("not implemented for format 0x%x\n", bitmap->format);
439 return NotImplemented;
440 }
441
442 return Ok;
443 }
444
445 GpStatus convert_pixels(UINT width, UINT height,
446 INT dst_stride, BYTE *dst_bits, PixelFormat dst_format,
447 INT src_stride, const BYTE *src_bits, PixelFormat src_format, ARGB *src_palette)
448 {
449 UINT x, y;
450
451 if (src_format == dst_format ||
452 (dst_format == PixelFormat32bppRGB && PIXELFORMATBPP(src_format) == 32))
453 {
454 UINT widthbytes = PIXELFORMATBPP(src_format) * width / 8;
455 for (y=0; y<height; y++)
456 memcpy(dst_bits+dst_stride*y, src_bits+src_stride*y, widthbytes);
457 return Ok;
458 }
459
460 #define convert_indexed_to_rgb(getpixel_function, setpixel_function) do { \
461 for (x=0; x<width; x++) \
462 for (y=0; y<height; y++) { \
463 BYTE index; \
464 BYTE *color; \
465 getpixel_function(&index, src_bits+src_stride*y, x); \
466 color = (BYTE*)(&src_palette[index]); \
467 setpixel_function(color[2], color[1], color[0], color[3], dst_bits+dst_stride*y, x); \
468 } \
469 return Ok; \
470 } while (0);
471
472 #define convert_rgb_to_rgb(getpixel_function, setpixel_function) do { \
473 for (x=0; x<width; x++) \
474 for (y=0; y<height; y++) { \
475 BYTE r, g, b, a; \
476 getpixel_function(&r, &g, &b, &a, src_bits+src_stride*y, x); \
477 setpixel_function(r, g, b, a, dst_bits+dst_stride*y, x); \
478 } \
479 return Ok; \
480 } while (0);
481
482 switch (src_format)
483 {
484 case PixelFormat1bppIndexed:
485 switch (dst_format)
486 {
487 case PixelFormat16bppGrayScale:
488 convert_indexed_to_rgb(getpixel_1bppIndexed, setpixel_16bppGrayScale);
489 case PixelFormat16bppRGB555:
490 convert_indexed_to_rgb(getpixel_1bppIndexed, setpixel_16bppRGB555);
491 case PixelFormat16bppRGB565:
492 convert_indexed_to_rgb(getpixel_1bppIndexed, setpixel_16bppRGB565);
493 case PixelFormat16bppARGB1555:
494 convert_indexed_to_rgb(getpixel_1bppIndexed, setpixel_16bppARGB1555);
495 case PixelFormat24bppRGB:
496 convert_indexed_to_rgb(getpixel_1bppIndexed, setpixel_24bppRGB);
497 case PixelFormat32bppRGB:
498 convert_indexed_to_rgb(getpixel_1bppIndexed, setpixel_32bppRGB);
499 case PixelFormat32bppARGB:
500 convert_indexed_to_rgb(getpixel_1bppIndexed, setpixel_32bppARGB);
501 case PixelFormat32bppPARGB:
502 convert_indexed_to_rgb(getpixel_1bppIndexed, setpixel_32bppPARGB);
503 case PixelFormat48bppRGB:
504 convert_indexed_to_rgb(getpixel_1bppIndexed, setpixel_48bppRGB);
505 case PixelFormat64bppARGB:
506 convert_indexed_to_rgb(getpixel_1bppIndexed, setpixel_64bppARGB);
507 default:
508 break;
509 }
510 break;
511 case PixelFormat4bppIndexed:
512 switch (dst_format)
513 {
514 case PixelFormat16bppGrayScale:
515 convert_indexed_to_rgb(getpixel_4bppIndexed, setpixel_16bppGrayScale);
516 case PixelFormat16bppRGB555:
517 convert_indexed_to_rgb(getpixel_4bppIndexed, setpixel_16bppRGB555);
518 case PixelFormat16bppRGB565:
519 convert_indexed_to_rgb(getpixel_4bppIndexed, setpixel_16bppRGB565);
520 case PixelFormat16bppARGB1555:
521 convert_indexed_to_rgb(getpixel_4bppIndexed, setpixel_16bppARGB1555);
522 case PixelFormat24bppRGB:
523 convert_indexed_to_rgb(getpixel_4bppIndexed, setpixel_24bppRGB);
524 case PixelFormat32bppRGB:
525 convert_indexed_to_rgb(getpixel_4bppIndexed, setpixel_32bppRGB);
526 case PixelFormat32bppARGB:
527 convert_indexed_to_rgb(getpixel_4bppIndexed, setpixel_32bppARGB);
528 case PixelFormat32bppPARGB:
529 convert_indexed_to_rgb(getpixel_4bppIndexed, setpixel_32bppPARGB);
530 case PixelFormat48bppRGB:
531 convert_indexed_to_rgb(getpixel_4bppIndexed, setpixel_48bppRGB);
532 case PixelFormat64bppARGB:
533 convert_indexed_to_rgb(getpixel_4bppIndexed, setpixel_64bppARGB);
534 default:
535 break;
536 }
537 break;
538 case PixelFormat8bppIndexed:
539 switch (dst_format)
540 {
541 case PixelFormat16bppGrayScale:
542 convert_indexed_to_rgb(getpixel_8bppIndexed, setpixel_16bppGrayScale);
543 case PixelFormat16bppRGB555:
544 convert_indexed_to_rgb(getpixel_8bppIndexed, setpixel_16bppRGB555);
545 case PixelFormat16bppRGB565:
546 convert_indexed_to_rgb(getpixel_8bppIndexed, setpixel_16bppRGB565);
547 case PixelFormat16bppARGB1555:
548 convert_indexed_to_rgb(getpixel_8bppIndexed, setpixel_16bppARGB1555);
549 case PixelFormat24bppRGB:
550 convert_indexed_to_rgb(getpixel_8bppIndexed, setpixel_24bppRGB);
551 case PixelFormat32bppRGB:
552 convert_indexed_to_rgb(getpixel_8bppIndexed, setpixel_32bppRGB);
553 case PixelFormat32bppARGB:
554 convert_indexed_to_rgb(getpixel_8bppIndexed, setpixel_32bppARGB);
555 case PixelFormat32bppPARGB:
556 convert_indexed_to_rgb(getpixel_8bppIndexed, setpixel_32bppPARGB);
557 case PixelFormat48bppRGB:
558 convert_indexed_to_rgb(getpixel_8bppIndexed, setpixel_48bppRGB);
559 case PixelFormat64bppARGB:
560 convert_indexed_to_rgb(getpixel_8bppIndexed, setpixel_64bppARGB);
561 default:
562 break;
563 }
564 break;
565 case PixelFormat16bppGrayScale:
566 switch (dst_format)
567 {
568 case PixelFormat16bppRGB555:
569 convert_rgb_to_rgb(getpixel_16bppGrayScale, setpixel_16bppRGB555);
570 case PixelFormat16bppRGB565:
571 convert_rgb_to_rgb(getpixel_16bppGrayScale, setpixel_16bppRGB565);
572 case PixelFormat16bppARGB1555:
573 convert_rgb_to_rgb(getpixel_16bppGrayScale, setpixel_16bppARGB1555);
574 case PixelFormat24bppRGB:
575 convert_rgb_to_rgb(getpixel_16bppGrayScale, setpixel_24bppRGB);
576 case PixelFormat32bppRGB:
577 convert_rgb_to_rgb(getpixel_16bppGrayScale, setpixel_32bppRGB);
578 case PixelFormat32bppARGB:
579 convert_rgb_to_rgb(getpixel_16bppGrayScale, setpixel_32bppARGB);
580 case PixelFormat32bppPARGB:
581 convert_rgb_to_rgb(getpixel_16bppGrayScale, setpixel_32bppPARGB);
582 case PixelFormat48bppRGB:
583 convert_rgb_to_rgb(getpixel_16bppGrayScale, setpixel_48bppRGB);
584 case PixelFormat64bppARGB:
585 convert_rgb_to_rgb(getpixel_16bppGrayScale, setpixel_64bppARGB);
586 default:
587 break;
588 }
589 break;
590 case PixelFormat16bppRGB555:
591 switch (dst_format)
592 {
593 case PixelFormat16bppGrayScale:
594 convert_rgb_to_rgb(getpixel_16bppRGB555, setpixel_16bppGrayScale);
595 case PixelFormat16bppRGB565:
596 convert_rgb_to_rgb(getpixel_16bppRGB555, setpixel_16bppRGB565);
597 case PixelFormat16bppARGB1555:
598 convert_rgb_to_rgb(getpixel_16bppRGB555, setpixel_16bppARGB1555);
599 case PixelFormat24bppRGB:
600 convert_rgb_to_rgb(getpixel_16bppRGB555, setpixel_24bppRGB);
601 case PixelFormat32bppRGB:
602 convert_rgb_to_rgb(getpixel_16bppRGB555, setpixel_32bppRGB);
603 case PixelFormat32bppARGB:
604 convert_rgb_to_rgb(getpixel_16bppRGB555, setpixel_32bppARGB);
605 case PixelFormat32bppPARGB:
606 convert_rgb_to_rgb(getpixel_16bppRGB555, setpixel_32bppPARGB);
607 case PixelFormat48bppRGB:
608 convert_rgb_to_rgb(getpixel_16bppRGB555, setpixel_48bppRGB);
609 case PixelFormat64bppARGB:
610 convert_rgb_to_rgb(getpixel_16bppRGB555, setpixel_64bppARGB);
611 default:
612 break;
613 }
614 break;
615 case PixelFormat16bppRGB565:
616 switch (dst_format)
617 {
618 case PixelFormat16bppGrayScale:
619 convert_rgb_to_rgb(getpixel_16bppRGB565, setpixel_16bppGrayScale);
620 case PixelFormat16bppRGB555:
621 convert_rgb_to_rgb(getpixel_16bppRGB565, setpixel_16bppRGB555);
622 case PixelFormat16bppARGB1555:
623 convert_rgb_to_rgb(getpixel_16bppRGB565, setpixel_16bppARGB1555);
624 case PixelFormat24bppRGB:
625 convert_rgb_to_rgb(getpixel_16bppRGB565, setpixel_24bppRGB);
626 case PixelFormat32bppRGB:
627 convert_rgb_to_rgb(getpixel_16bppRGB565, setpixel_32bppRGB);
628 case PixelFormat32bppARGB:
629 convert_rgb_to_rgb(getpixel_16bppRGB565, setpixel_32bppARGB);
630 case PixelFormat32bppPARGB:
631 convert_rgb_to_rgb(getpixel_16bppRGB565, setpixel_32bppPARGB);
632 case PixelFormat48bppRGB:
633 convert_rgb_to_rgb(getpixel_16bppRGB565, setpixel_48bppRGB);
634 case PixelFormat64bppARGB:
635 convert_rgb_to_rgb(getpixel_16bppRGB565, setpixel_64bppARGB);
636 default:
637 break;
638 }
639 break;
640 case PixelFormat16bppARGB1555:
641 switch (dst_format)
642 {
643 case PixelFormat16bppGrayScale:
644 convert_rgb_to_rgb(getpixel_16bppARGB1555, setpixel_16bppGrayScale);
645 case PixelFormat16bppRGB555:
646 convert_rgb_to_rgb(getpixel_16bppARGB1555, setpixel_16bppRGB555);
647 case PixelFormat16bppRGB565:
648 convert_rgb_to_rgb(getpixel_16bppARGB1555, setpixel_16bppRGB565);
649 case PixelFormat24bppRGB:
650 convert_rgb_to_rgb(getpixel_16bppARGB1555, setpixel_24bppRGB);
651 case PixelFormat32bppRGB:
652 convert_rgb_to_rgb(getpixel_16bppARGB1555, setpixel_32bppRGB);
653 case PixelFormat32bppARGB:
654 convert_rgb_to_rgb(getpixel_16bppARGB1555, setpixel_32bppARGB);
655 case PixelFormat32bppPARGB:
656 convert_rgb_to_rgb(getpixel_16bppARGB1555, setpixel_32bppPARGB);
657 case PixelFormat48bppRGB:
658 convert_rgb_to_rgb(getpixel_16bppARGB1555, setpixel_48bppRGB);
659 case PixelFormat64bppARGB:
660 convert_rgb_to_rgb(getpixel_16bppARGB1555, setpixel_64bppARGB);
661 default:
662 break;
663 }
664 break;
665 case PixelFormat24bppRGB:
666 switch (dst_format)
667 {
668 case PixelFormat16bppGrayScale:
669 convert_rgb_to_rgb(getpixel_24bppRGB, setpixel_16bppGrayScale);
670 case PixelFormat16bppRGB555:
671 convert_rgb_to_rgb(getpixel_24bppRGB, setpixel_16bppRGB555);
672 case PixelFormat16bppRGB565:
673 convert_rgb_to_rgb(getpixel_24bppRGB, setpixel_16bppRGB565);
674 case PixelFormat16bppARGB1555:
675 convert_rgb_to_rgb(getpixel_24bppRGB, setpixel_16bppARGB1555);
676 case PixelFormat32bppRGB:
677 convert_rgb_to_rgb(getpixel_24bppRGB, setpixel_32bppRGB);
678 case PixelFormat32bppARGB:
679 convert_rgb_to_rgb(getpixel_24bppRGB, setpixel_32bppARGB);
680 case PixelFormat32bppPARGB:
681 convert_rgb_to_rgb(getpixel_24bppRGB, setpixel_32bppPARGB);
682 case PixelFormat48bppRGB:
683 convert_rgb_to_rgb(getpixel_24bppRGB, setpixel_48bppRGB);
684 case PixelFormat64bppARGB:
685 convert_rgb_to_rgb(getpixel_24bppRGB, setpixel_64bppARGB);
686 default:
687 break;
688 }
689 break;
690 case PixelFormat32bppRGB:
691 switch (dst_format)
692 {
693 case PixelFormat16bppGrayScale:
694 convert_rgb_to_rgb(getpixel_32bppRGB, setpixel_16bppGrayScale);
695 case PixelFormat16bppRGB555:
696 convert_rgb_to_rgb(getpixel_32bppRGB, setpixel_16bppRGB555);
697 case PixelFormat16bppRGB565:
698 convert_rgb_to_rgb(getpixel_32bppRGB, setpixel_16bppRGB565);
699 case PixelFormat16bppARGB1555:
700 convert_rgb_to_rgb(getpixel_32bppRGB, setpixel_16bppARGB1555);
701 case PixelFormat24bppRGB:
702 convert_rgb_to_rgb(getpixel_32bppRGB, setpixel_24bppRGB);
703 case PixelFormat32bppARGB:
704 convert_rgb_to_rgb(getpixel_32bppRGB, setpixel_32bppARGB);
705 case PixelFormat32bppPARGB:
706 convert_rgb_to_rgb(getpixel_32bppRGB, setpixel_32bppPARGB);
707 case PixelFormat48bppRGB:
708 convert_rgb_to_rgb(getpixel_32bppRGB, setpixel_48bppRGB);
709 case PixelFormat64bppARGB:
710 convert_rgb_to_rgb(getpixel_32bppRGB, setpixel_64bppARGB);
711 default:
712 break;
713 }
714 break;
715 case PixelFormat32bppARGB:
716 switch (dst_format)
717 {
718 case PixelFormat16bppGrayScale:
719 convert_rgb_to_rgb(getpixel_32bppARGB, setpixel_16bppGrayScale);
720 case PixelFormat16bppRGB555:
721 convert_rgb_to_rgb(getpixel_32bppARGB, setpixel_16bppRGB555);
722 case PixelFormat16bppRGB565:
723 convert_rgb_to_rgb(getpixel_32bppARGB, setpixel_16bppRGB565);
724 case PixelFormat16bppARGB1555:
725 convert_rgb_to_rgb(getpixel_32bppARGB, setpixel_16bppARGB1555);
726 case PixelFormat24bppRGB:
727 convert_rgb_to_rgb(getpixel_32bppARGB, setpixel_24bppRGB);
728 case PixelFormat32bppPARGB:
729 convert_32bppARGB_to_32bppPARGB(width, height, dst_bits, dst_stride, src_bits, src_stride);
730 return Ok;
731 case PixelFormat48bppRGB:
732 convert_rgb_to_rgb(getpixel_32bppARGB, setpixel_48bppRGB);
733 case PixelFormat64bppARGB:
734 convert_rgb_to_rgb(getpixel_32bppARGB, setpixel_64bppARGB);
735 default:
736 break;
737 }
738 break;
739 case PixelFormat32bppPARGB:
740 switch (dst_format)
741 {
742 case PixelFormat16bppGrayScale:
743 convert_rgb_to_rgb(getpixel_32bppPARGB, setpixel_16bppGrayScale);
744 case PixelFormat16bppRGB555:
745 convert_rgb_to_rgb(getpixel_32bppPARGB, setpixel_16bppRGB555);
746 case PixelFormat16bppRGB565:
747 convert_rgb_to_rgb(getpixel_32bppPARGB, setpixel_16bppRGB565);
748 case PixelFormat16bppARGB1555:
749 convert_rgb_to_rgb(getpixel_32bppPARGB, setpixel_16bppARGB1555);
750 case PixelFormat24bppRGB:
751 convert_rgb_to_rgb(getpixel_32bppPARGB, setpixel_24bppRGB);
752 case PixelFormat32bppRGB:
753 convert_rgb_to_rgb(getpixel_32bppPARGB, setpixel_32bppRGB);
754 case PixelFormat32bppARGB:
755 convert_rgb_to_rgb(getpixel_32bppPARGB, setpixel_32bppARGB);
756 case PixelFormat48bppRGB:
757 convert_rgb_to_rgb(getpixel_32bppPARGB, setpixel_48bppRGB);
758 case PixelFormat64bppARGB:
759 convert_rgb_to_rgb(getpixel_32bppPARGB, setpixel_64bppARGB);
760 default:
761 break;
762 }
763 break;
764 case PixelFormat48bppRGB:
765 switch (dst_format)
766 {
767 case PixelFormat16bppGrayScale:
768 convert_rgb_to_rgb(getpixel_48bppRGB, setpixel_16bppGrayScale);
769 case PixelFormat16bppRGB555:
770 convert_rgb_to_rgb(getpixel_48bppRGB, setpixel_16bppRGB555);
771 case PixelFormat16bppRGB565:
772 convert_rgb_to_rgb(getpixel_48bppRGB, setpixel_16bppRGB565);
773 case PixelFormat16bppARGB1555:
774 convert_rgb_to_rgb(getpixel_48bppRGB, setpixel_16bppARGB1555);
775 case PixelFormat24bppRGB:
776 convert_rgb_to_rgb(getpixel_48bppRGB, setpixel_24bppRGB);
777 case PixelFormat32bppRGB:
778 convert_rgb_to_rgb(getpixel_48bppRGB, setpixel_32bppRGB);
779 case PixelFormat32bppARGB:
780 convert_rgb_to_rgb(getpixel_48bppRGB, setpixel_32bppARGB);
781 case PixelFormat32bppPARGB:
782 convert_rgb_to_rgb(getpixel_48bppRGB, setpixel_32bppPARGB);
783 case PixelFormat64bppARGB:
784 convert_rgb_to_rgb(getpixel_48bppRGB, setpixel_64bppARGB);
785 default:
786 break;
787 }
788 break;
789 case PixelFormat64bppARGB:
790 switch (dst_format)
791 {
792 case PixelFormat16bppGrayScale:
793 convert_rgb_to_rgb(getpixel_64bppARGB, setpixel_16bppGrayScale);
794 case PixelFormat16bppRGB555:
795 convert_rgb_to_rgb(getpixel_64bppARGB, setpixel_16bppRGB555);
796 case PixelFormat16bppRGB565:
797 convert_rgb_to_rgb(getpixel_64bppARGB, setpixel_16bppRGB565);
798 case PixelFormat16bppARGB1555:
799 convert_rgb_to_rgb(getpixel_64bppARGB, setpixel_16bppARGB1555);
800 case PixelFormat24bppRGB:
801 convert_rgb_to_rgb(getpixel_64bppARGB, setpixel_24bppRGB);
802 case PixelFormat32bppRGB:
803 convert_rgb_to_rgb(getpixel_64bppARGB, setpixel_32bppRGB);
804 case PixelFormat32bppARGB:
805 convert_rgb_to_rgb(getpixel_64bppARGB, setpixel_32bppARGB);
806 case PixelFormat32bppPARGB:
807 convert_rgb_to_rgb(getpixel_64bppARGB, setpixel_32bppPARGB);
808 case PixelFormat48bppRGB:
809 convert_rgb_to_rgb(getpixel_64bppARGB, setpixel_48bppRGB);
810 default:
811 break;
812 }
813 break;
814 case PixelFormat64bppPARGB:
815 switch (dst_format)
816 {
817 case PixelFormat16bppGrayScale:
818 convert_rgb_to_rgb(getpixel_64bppPARGB, setpixel_16bppGrayScale);
819 case PixelFormat16bppRGB555:
820 convert_rgb_to_rgb(getpixel_64bppPARGB, setpixel_16bppRGB555);
821 case PixelFormat16bppRGB565:
822 convert_rgb_to_rgb(getpixel_64bppPARGB, setpixel_16bppRGB565);
823 case PixelFormat16bppARGB1555:
824 convert_rgb_to_rgb(getpixel_64bppPARGB, setpixel_16bppARGB1555);
825 case PixelFormat24bppRGB:
826 convert_rgb_to_rgb(getpixel_64bppPARGB, setpixel_24bppRGB);
827 case PixelFormat32bppRGB:
828 convert_rgb_to_rgb(getpixel_64bppPARGB, setpixel_32bppRGB);
829 case PixelFormat32bppARGB:
830 convert_rgb_to_rgb(getpixel_64bppPARGB, setpixel_32bppARGB);
831 case PixelFormat32bppPARGB:
832 convert_rgb_to_rgb(getpixel_64bppPARGB, setpixel_32bppPARGB);
833 case PixelFormat48bppRGB:
834 convert_rgb_to_rgb(getpixel_64bppPARGB, setpixel_48bppRGB);
835 case PixelFormat64bppARGB:
836 convert_rgb_to_rgb(getpixel_64bppPARGB, setpixel_64bppARGB);
837 default:
838 break;
839 }
840 break;
841 default:
842 break;
843 }
844
845 #undef convert_indexed_to_rgb
846 #undef convert_rgb_to_rgb
847
848 return NotImplemented;
849 }
850
851 /* This function returns a pointer to an array of pixels that represents the
852 * bitmap. The *entire* bitmap is locked according to the lock mode specified by
853 * flags. It is correct behavior that a user who calls this function with write
854 * privileges can write to the whole bitmap (not just the area in rect).
855 *
856 * FIXME: only used portion of format is bits per pixel. */
857 GpStatus WINGDIPAPI GdipBitmapLockBits(GpBitmap* bitmap, GDIPCONST GpRect* rect,
858 UINT flags, PixelFormat format, BitmapData* lockeddata)
859 {
860 INT stride, bitspp = PIXELFORMATBPP(format);
861 BYTE *buff = NULL;
862 UINT abs_height;
863 GpRect act_rect; /* actual rect to be used */
864 GpStatus stat;
865
866 TRACE("%p %p %d 0x%x %p\n", bitmap, rect, flags, format, lockeddata);
867
868 if(!lockeddata || !bitmap)
869 return InvalidParameter;
870
871 if(rect){
872 if(rect->X < 0 || rect->Y < 0 || (rect->X + rect->Width > bitmap->width) ||
873 (rect->Y + rect->Height > bitmap->height) || !flags)
874 return InvalidParameter;
875
876 act_rect = *rect;
877 }
878 else{
879 act_rect.X = act_rect.Y = 0;
880 act_rect.Width = bitmap->width;
881 act_rect.Height = bitmap->height;
882 }
883
884 if(flags & ImageLockModeUserInputBuf)
885 {
886 static int fixme=0;
887 if (!fixme++) FIXME("ImageLockModeUserInputBuf not implemented\n");
888 return NotImplemented;
889 }
890
891 if(bitmap->lockmode)
892 {
893 WARN("bitmap is already locked and cannot be locked again\n");
894 return WrongState;
895 }
896
897 if (bitmap->bits && bitmap->format == format)
898 {
899 /* no conversion is necessary; just use the bits directly */
900 lockeddata->Width = act_rect.Width;
901 lockeddata->Height = act_rect.Height;
902 lockeddata->PixelFormat = format;
903 lockeddata->Reserved = flags;
904 lockeddata->Stride = bitmap->stride;
905 lockeddata->Scan0 = bitmap->bits + (bitspp / 8) * act_rect.X +
906 bitmap->stride * act_rect.Y;
907
908 bitmap->lockmode = flags;
909 bitmap->numlocks++;
910
911 return Ok;
912 }
913
914 /* Make sure we can convert to the requested format. */
915 stat = convert_pixels(0, 0, 0, NULL, format, 0, NULL, bitmap->format, NULL);
916 if (stat == NotImplemented)
917 {
918 FIXME("cannot read bitmap from %x to %x\n", bitmap->format, format);
919 return NotImplemented;
920 }
921
922 /* If we're opening for writing, make sure we'll be able to write back in
923 * the original format. */
924 if (flags & ImageLockModeWrite)
925 {
926 stat = convert_pixels(0, 0, 0, NULL, bitmap->format, 0, NULL, format, NULL);
927 if (stat == NotImplemented)
928 {
929 FIXME("cannot write bitmap from %x to %x\n", format, bitmap->format);
930 return NotImplemented;
931 }
932 }
933
934 abs_height = bitmap->height;
935 stride = (bitmap->width * bitspp + 7) / 8;
936 stride = (stride + 3) & ~3;
937
938 buff = GdipAlloc(stride * abs_height);
939
940 if (!buff) return OutOfMemory;
941
942 stat = convert_pixels(bitmap->width, bitmap->height,
943 stride, buff, format,
944 bitmap->stride, bitmap->bits, bitmap->format, bitmap->image.palette_entries);
945
946 if (stat != Ok)
947 {
948 GdipFree(buff);
949 return stat;
950 }
951
952 lockeddata->Width = act_rect.Width;
953 lockeddata->Height = act_rect.Height;
954 lockeddata->PixelFormat = format;
955 lockeddata->Reserved = flags;
956 lockeddata->Stride = stride;
957 lockeddata->Scan0 = buff + (bitspp / 8) * act_rect.X + stride * act_rect.Y;
958
959 bitmap->lockmode = flags;
960 bitmap->numlocks++;
961 bitmap->bitmapbits = buff;
962
963 return Ok;
964 }
965
966 GpStatus WINGDIPAPI GdipBitmapSetResolution(GpBitmap* bitmap, REAL xdpi, REAL ydpi)
967 {
968 TRACE("(%p, %.2f, %.2f)\n", bitmap, xdpi, ydpi);
969
970 if (!bitmap || xdpi == 0.0 || ydpi == 0.0)
971 return InvalidParameter;
972
973 bitmap->image.xres = xdpi;
974 bitmap->image.yres = ydpi;
975
976 return Ok;
977 }
978
979 GpStatus WINGDIPAPI GdipBitmapUnlockBits(GpBitmap* bitmap,
980 BitmapData* lockeddata)
981 {
982 GpStatus stat;
983
984 TRACE("(%p,%p)\n", bitmap, lockeddata);
985
986 if(!bitmap || !lockeddata)
987 return InvalidParameter;
988
989 if(!bitmap->lockmode)
990 return WrongState;
991
992 if(lockeddata->Reserved & ImageLockModeUserInputBuf)
993 return NotImplemented;
994
995 if(lockeddata->Reserved & ImageLockModeRead){
996 if(!(--bitmap->numlocks))
997 bitmap->lockmode = 0;
998
999 GdipFree(bitmap->bitmapbits);
1000 bitmap->bitmapbits = NULL;
1001 return Ok;
1002 }
1003
1004 if (!bitmap->bitmapbits)
1005 {
1006 /* we passed a direct reference; no need to do anything */
1007 bitmap->lockmode = 0;
1008 bitmap->numlocks = 0;
1009 return Ok;
1010 }
1011
1012 stat = convert_pixels(bitmap->width, bitmap->height,
1013 bitmap->stride, bitmap->bits, bitmap->format,
1014 lockeddata->Stride, bitmap->bitmapbits, lockeddata->PixelFormat, NULL);
1015
1016 if (stat != Ok)
1017 {
1018 ERR("failed to convert pixels; this should never happen\n");
1019 }
1020
1021 GdipFree(bitmap->bitmapbits);
1022 bitmap->bitmapbits = NULL;
1023 bitmap->lockmode = 0;
1024 bitmap->numlocks = 0;
1025
1026 return stat;
1027 }
1028
1029 GpStatus WINGDIPAPI GdipCloneBitmapArea(REAL x, REAL y, REAL width, REAL height,
1030 PixelFormat format, GpBitmap* srcBitmap, GpBitmap** dstBitmap)
1031 {
1032 BitmapData lockeddata_src, lockeddata_dst;
1033 int i;
1034 UINT row_size;
1035 Rect area;
1036 GpStatus stat;
1037
1038 TRACE("(%f,%f,%f,%f,0x%x,%p,%p)\n", x, y, width, height, format, srcBitmap, dstBitmap);
1039
1040 if (!srcBitmap || !dstBitmap || srcBitmap->image.type != ImageTypeBitmap ||
1041 x < 0 || y < 0 ||
1042 x + width > srcBitmap->width || y + height > srcBitmap->height)
1043 {
1044 TRACE("<-- InvalidParameter\n");
1045 return InvalidParameter;
1046 }
1047
1048 if (format == PixelFormatDontCare)
1049 format = srcBitmap->format;
1050
1051 area.X = roundr(x);
1052 area.Y = roundr(y);
1053 area.Width = roundr(width);
1054 area.Height = roundr(height);
1055
1056 stat = GdipBitmapLockBits(srcBitmap, &area, ImageLockModeRead, format,
1057 &lockeddata_src);
1058 if (stat != Ok) return stat;
1059
1060 stat = GdipCreateBitmapFromScan0(lockeddata_src.Width, lockeddata_src.Height,
1061 0, lockeddata_src.PixelFormat, NULL, dstBitmap);
1062 if (stat == Ok)
1063 {
1064 stat = GdipBitmapLockBits(*dstBitmap, NULL, ImageLockModeWrite,
1065 lockeddata_src.PixelFormat, &lockeddata_dst);
1066
1067 if (stat == Ok)
1068 {
1069 /* copy the image data */
1070 row_size = (lockeddata_src.Width * PIXELFORMATBPP(lockeddata_src.PixelFormat) +7)/8;
1071 for (i=0; i<lockeddata_src.Height; i++)
1072 memcpy((BYTE*)lockeddata_dst.Scan0+lockeddata_dst.Stride*i,
1073 (BYTE*)lockeddata_src.Scan0+lockeddata_src.Stride*i,
1074 row_size);
1075
1076 GdipBitmapUnlockBits(*dstBitmap, &lockeddata_dst);
1077 }
1078
1079 if (stat != Ok)
1080 GdipDisposeImage((GpImage*)*dstBitmap);
1081 }
1082
1083 GdipBitmapUnlockBits(srcBitmap, &lockeddata_src);
1084
1085 if (stat != Ok)
1086 {
1087 *dstBitmap = NULL;
1088 }
1089
1090 return stat;
1091 }
1092
1093 GpStatus WINGDIPAPI GdipCloneBitmapAreaI(INT x, INT y, INT width, INT height,
1094 PixelFormat format, GpBitmap* srcBitmap, GpBitmap** dstBitmap)
1095 {
1096 TRACE("(%i,%i,%i,%i,0x%x,%p,%p)\n", x, y, width, height, format, srcBitmap, dstBitmap);
1097
1098 return GdipCloneBitmapArea(x, y, width, height, format, srcBitmap, dstBitmap);
1099 }
1100
1101 GpStatus WINGDIPAPI GdipCloneImage(GpImage *image, GpImage **cloneImage)
1102 {
1103 GpStatus stat = GenericError;
1104
1105 TRACE("%p, %p\n", image, cloneImage);
1106
1107 if (!image || !cloneImage)
1108 return InvalidParameter;
1109
1110 if (image->picture)
1111 {
1112 IStream* stream;
1113 HRESULT hr;
1114 INT size;
1115 LARGE_INTEGER move;
1116
1117 hr = CreateStreamOnHGlobal(0, TRUE, &stream);
1118 if (FAILED(hr))
1119 return GenericError;
1120
1121 hr = IPicture_SaveAsFile(image->picture, stream, FALSE, &size);
1122 if(FAILED(hr))
1123 {
1124 WARN("Failed to save image on stream\n");
1125 goto out;
1126 }
1127
1128 /* Set seek pointer back to the beginning of the picture */
1129 move.QuadPart = 0;
1130 hr = IStream_Seek(stream, move, STREAM_SEEK_SET, NULL);
1131 if (FAILED(hr))
1132 goto out;
1133
1134 stat = GdipLoadImageFromStream(stream, cloneImage);
1135 if (stat != Ok) WARN("Failed to load image from stream\n");
1136
1137 out:
1138 IStream_Release(stream);
1139 return stat;
1140 }
1141 else if (image->type == ImageTypeBitmap)
1142 {
1143 GpBitmap *bitmap = (GpBitmap*)image;
1144 BitmapData lockeddata_src, lockeddata_dst;
1145 int i;
1146 UINT row_size;
1147
1148 stat = GdipBitmapLockBits(bitmap, NULL, ImageLockModeRead, bitmap->format,
1149 &lockeddata_src);
1150 if (stat != Ok) return stat;
1151
1152 stat = GdipCreateBitmapFromScan0(lockeddata_src.Width, lockeddata_src.Height,
1153 0, lockeddata_src.PixelFormat, NULL, (GpBitmap**)cloneImage);
1154 if (stat == Ok)
1155 {
1156 stat = GdipBitmapLockBits((GpBitmap*)*cloneImage, NULL, ImageLockModeWrite,
1157 lockeddata_src.PixelFormat, &lockeddata_dst);
1158
1159 if (stat == Ok)
1160 {
1161 /* copy the image data */
1162 row_size = (lockeddata_src.Width * PIXELFORMATBPP(lockeddata_src.PixelFormat) +7)/8;
1163 for (i=0; i<lockeddata_src.Height; i++)
1164 memcpy((BYTE*)lockeddata_dst.Scan0+lockeddata_dst.Stride*i,
1165 (BYTE*)lockeddata_src.Scan0+lockeddata_src.Stride*i,
1166 row_size);
1167
1168 GdipBitmapUnlockBits((GpBitmap*)*cloneImage, &lockeddata_dst);
1169 }
1170
1171 if (stat != Ok)
1172 GdipDisposeImage(*cloneImage);
1173 }
1174
1175 GdipBitmapUnlockBits(bitmap, &lockeddata_src);
1176
1177 if (stat != Ok)
1178 {
1179 *cloneImage = NULL;
1180 }
1181 else memcpy(&(*cloneImage)->format, &image->format, sizeof(GUID));
1182
1183 return stat;
1184 }
1185 else
1186 {
1187 ERR("GpImage with no IPicture or bitmap?!\n");
1188 return NotImplemented;
1189 }
1190 }
1191
1192 GpStatus WINGDIPAPI GdipCreateBitmapFromFile(GDIPCONST WCHAR* filename,
1193 GpBitmap **bitmap)
1194 {
1195 GpStatus stat;
1196 IStream *stream;
1197
1198 TRACE("(%s) %p\n", debugstr_w(filename), bitmap);
1199
1200 if(!filename || !bitmap)
1201 return InvalidParameter;
1202
1203 stat = GdipCreateStreamOnFile(filename, GENERIC_READ, &stream);
1204
1205 if(stat != Ok)
1206 return stat;
1207
1208 stat = GdipCreateBitmapFromStream(stream, bitmap);
1209
1210 IStream_Release(stream);
1211
1212 return stat;
1213 }
1214
1215 GpStatus WINGDIPAPI GdipCreateBitmapFromGdiDib(GDIPCONST BITMAPINFO* info,
1216 VOID *bits, GpBitmap **bitmap)
1217 {
1218 DWORD height, stride;
1219 PixelFormat format;
1220
1221 FIXME("(%p, %p, %p) - partially implemented\n", info, bits, bitmap);
1222
1223 height = abs(info->bmiHeader.biHeight);
1224 stride = ((info->bmiHeader.biWidth * info->bmiHeader.biBitCount + 31) >> 3) & ~3;
1225
1226 if(info->bmiHeader.biHeight > 0) /* bottom-up */
1227 {
1228 bits = (BYTE*)bits + (height - 1) * stride;
1229 stride = -stride;
1230 }
1231
1232 switch(info->bmiHeader.biBitCount) {
1233 case 1:
1234 format = PixelFormat1bppIndexed;
1235 break;
1236 case 4:
1237 format = PixelFormat4bppIndexed;
1238 break;
1239 case 8:
1240 format = PixelFormat8bppIndexed;
1241 break;
1242 case 24:
1243 format = PixelFormat24bppRGB;
1244 break;
1245 default:
1246 FIXME("don't know how to handle %d bpp\n", info->bmiHeader.biBitCount);
1247 *bitmap = NULL;
1248 return InvalidParameter;
1249 }
1250
1251 return GdipCreateBitmapFromScan0(info->bmiHeader.biWidth, height, stride, format,
1252 bits, bitmap);
1253
1254 }
1255
1256 /* FIXME: no icm */
1257 GpStatus WINGDIPAPI GdipCreateBitmapFromFileICM(GDIPCONST WCHAR* filename,
1258 GpBitmap **bitmap)
1259 {
1260 TRACE("(%s) %p\n", debugstr_w(filename), bitmap);
1261
1262 return GdipCreateBitmapFromFile(filename, bitmap);
1263 }
1264
1265 GpStatus WINGDIPAPI GdipCreateBitmapFromResource(HINSTANCE hInstance,
1266 GDIPCONST WCHAR* lpBitmapName, GpBitmap** bitmap)
1267 {
1268 HBITMAP hbm;
1269 GpStatus stat = InvalidParameter;
1270
1271 TRACE("%p (%s) %p\n", hInstance, debugstr_w(lpBitmapName), bitmap);
1272
1273 if(!lpBitmapName || !bitmap)
1274 return InvalidParameter;
1275
1276 /* load DIB */
1277 hbm = LoadImageW(hInstance, lpBitmapName, IMAGE_BITMAP, 0, 0,
1278 LR_CREATEDIBSECTION);
1279
1280 if(hbm){
1281 stat = GdipCreateBitmapFromHBITMAP(hbm, NULL, bitmap);
1282 DeleteObject(hbm);
1283 }
1284
1285 return stat;
1286 }
1287
1288 GpStatus WINGDIPAPI GdipCreateHBITMAPFromBitmap(GpBitmap* bitmap,
1289 HBITMAP* hbmReturn, ARGB background)
1290 {
1291 GpStatus stat;
1292 HBITMAP result, oldbitmap;
1293 UINT width, height;
1294 HDC hdc;
1295 GpGraphics *graphics;
1296 BITMAPINFOHEADER bih;
1297 void *bits;
1298 TRACE("(%p,%p,%x)\n", bitmap, hbmReturn, background);
1299
1300 if (!bitmap || !hbmReturn) return InvalidParameter;
1301
1302 GdipGetImageWidth((GpImage*)bitmap, &width);
1303 GdipGetImageHeight((GpImage*)bitmap, &height);
1304
1305 bih.biSize = sizeof(bih);
1306 bih.biWidth = width;
1307 bih.biHeight = height;
1308 bih.biPlanes = 1;
1309 bih.biBitCount = 32;
1310 bih.biCompression = BI_RGB;
1311 bih.biSizeImage = 0;
1312 bih.biXPelsPerMeter = 0;
1313 bih.biYPelsPerMeter = 0;
1314 bih.biClrUsed = 0;
1315 bih.biClrImportant = 0;
1316
1317 hdc = CreateCompatibleDC(NULL);
1318 if (!hdc) return GenericError;
1319
1320 result = CreateDIBSection(hdc, (BITMAPINFO*)&bih, DIB_RGB_COLORS, &bits,
1321 NULL, 0);
1322
1323 if (result)
1324 {
1325 oldbitmap = SelectObject(hdc, result);
1326
1327 stat = GdipCreateFromHDC(hdc, &graphics);
1328 if (stat == Ok)
1329 {
1330 stat = GdipGraphicsClear(graphics, background);
1331
1332 if (stat == Ok)
1333 stat = GdipDrawImage(graphics, (GpImage*)bitmap, 0, 0);
1334
1335 GdipDeleteGraphics(graphics);
1336 }
1337
1338 SelectObject(hdc, oldbitmap);
1339 }
1340 else
1341 stat = GenericError;
1342
1343 DeleteDC(hdc);
1344
1345 if (stat != Ok && result)
1346 {
1347 DeleteObject(result);
1348 result = NULL;
1349 }
1350
1351 *hbmReturn = result;
1352
1353 return stat;
1354 }
1355
1356 GpStatus WINGDIPAPI GdipConvertToEmfPlus(const GpGraphics* ref,
1357 GpMetafile* metafile, BOOL* succ, EmfType emfType,
1358 const WCHAR* description, GpMetafile** out_metafile)
1359 {
1360 static int calls;
1361
1362 TRACE("(%p,%p,%p,%u,%s,%p)\n", ref, metafile, succ, emfType,
1363 debugstr_w(description), out_metafile);
1364
1365 if(!ref || !metafile || !out_metafile)
1366 return InvalidParameter;
1367
1368 *succ = FALSE;
1369 *out_metafile = NULL;
1370
1371 if(!(calls++))
1372 FIXME("not implemented\n");
1373
1374 return NotImplemented;
1375 }
1376
1377 /* FIXME: this should create a bitmap in the given size with the attributes
1378 * (resolution etc.) of the graphics object */
1379 GpStatus WINGDIPAPI GdipCreateBitmapFromGraphics(INT width, INT height,
1380 GpGraphics* target, GpBitmap** bitmap)
1381 {
1382 static int calls;
1383 GpStatus ret;
1384
1385 if(!target || !bitmap)
1386 return InvalidParameter;
1387
1388 if(!(calls++))
1389 FIXME("hacked stub\n");
1390
1391 ret = GdipCreateBitmapFromScan0(width, height, 0, PixelFormat24bppRGB,
1392 NULL, bitmap);
1393
1394 return ret;
1395 }
1396
1397 GpStatus WINGDIPAPI GdipCreateBitmapFromHICON(HICON hicon, GpBitmap** bitmap)
1398 {
1399 GpStatus stat;
1400 ICONINFO iinfo;
1401 BITMAP bm;
1402 int ret;
1403 UINT width, height;
1404 GpRect rect;
1405 BitmapData lockeddata;
1406 HDC screendc;
1407 BOOL has_alpha;
1408 int x, y;
1409 BYTE *bits;
1410 BITMAPINFOHEADER bih;
1411 DWORD *src;
1412 BYTE *dst_row;
1413 DWORD *dst;
1414
1415 TRACE("%p, %p\n", hicon, bitmap);
1416
1417 if(!bitmap || !GetIconInfo(hicon, &iinfo))
1418 return InvalidParameter;
1419
1420 /* get the size of the icon */
1421 ret = GetObjectA(iinfo.hbmColor ? iinfo.hbmColor : iinfo.hbmMask, sizeof(bm), &bm);
1422 if (ret == 0) {
1423 DeleteObject(iinfo.hbmColor);
1424 DeleteObject(iinfo.hbmMask);
1425 return GenericError;
1426 }
1427
1428 width = bm.bmWidth;
1429
1430 if (iinfo.hbmColor)
1431 height = abs(bm.bmHeight);
1432 else /* combined bitmap + mask */
1433 height = abs(bm.bmHeight) / 2;
1434
1435 bits = HeapAlloc(GetProcessHeap(), 0, 4*width*height);
1436 if (!bits) {
1437 DeleteObject(iinfo.hbmColor);
1438 DeleteObject(iinfo.hbmMask);
1439 return OutOfMemory;
1440 }
1441
1442 stat = GdipCreateBitmapFromScan0(width, height, 0, PixelFormat32bppARGB, NULL, bitmap);
1443 if (stat != Ok) {
1444 DeleteObject(iinfo.hbmColor);
1445 DeleteObject(iinfo.hbmMask);
1446 HeapFree(GetProcessHeap(), 0, bits);
1447 return stat;
1448 }
1449
1450 rect.X = 0;
1451 rect.Y = 0;
1452 rect.Width = width;
1453 rect.Height = height;
1454
1455 stat = GdipBitmapLockBits(*bitmap, &rect, ImageLockModeWrite, PixelFormat32bppARGB, &lockeddata);
1456 if (stat != Ok) {
1457 DeleteObject(iinfo.hbmColor);
1458 DeleteObject(iinfo.hbmMask);
1459 HeapFree(GetProcessHeap(), 0, bits);
1460 GdipDisposeImage((GpImage*)*bitmap);
1461 return stat;
1462 }
1463
1464 bih.biSize = sizeof(bih);
1465 bih.biWidth = width;
1466 bih.biHeight = -height;
1467 bih.biPlanes = 1;
1468 bih.biBitCount = 32;
1469 bih.biCompression = BI_RGB;
1470 bih.biSizeImage = 0;
1471 bih.biXPelsPerMeter = 0;
1472 bih.biYPelsPerMeter = 0;
1473 bih.biClrUsed = 0;
1474 bih.biClrImportant = 0;
1475
1476 screendc = GetDC(0);
1477 if (iinfo.hbmColor)
1478 {
1479 GetDIBits(screendc, iinfo.hbmColor, 0, height, bits, (BITMAPINFO*)&bih, DIB_RGB_COLORS);
1480
1481 if (bm.bmBitsPixel == 32)
1482 {
1483 has_alpha = FALSE;
1484
1485 /* If any pixel has a non-zero alpha, ignore hbmMask */
1486 src = (DWORD*)bits;
1487 for (x=0; x<width && !has_alpha; x++)
1488 for (y=0; y<height && !has_alpha; y++)
1489 if ((*src++ & 0xff000000) != 0)
1490 has_alpha = TRUE;
1491 }
1492 else has_alpha = FALSE;
1493 }
1494 else
1495 {
1496 GetDIBits(screendc, iinfo.hbmMask, 0, height, bits, (BITMAPINFO*)&bih, DIB_RGB_COLORS);
1497 has_alpha = FALSE;
1498 }
1499
1500 /* copy the image data to the Bitmap */
1501 src = (DWORD*)bits;
1502 dst_row = lockeddata.Scan0;
1503 for (y=0; y<height; y++)
1504 {
1505 memcpy(dst_row, src, width*4);
1506 src += width;
1507 dst_row += lockeddata.Stride;
1508 }
1509
1510 if (!has_alpha)
1511 {
1512 if (iinfo.hbmMask)
1513 {
1514 /* read alpha data from the mask */
1515 if (iinfo.hbmColor)
1516 GetDIBits(screendc, iinfo.hbmMask, 0, height, bits, (BITMAPINFO*)&bih, DIB_RGB_COLORS);
1517 else
1518 GetDIBits(screendc, iinfo.hbmMask, height, height, bits, (BITMAPINFO*)&bih, DIB_RGB_COLORS);
1519
1520 src = (DWORD*)bits;
1521 dst_row = lockeddata.Scan0;
1522 for (y=0; y<height; y++)
1523 {
1524 dst = (DWORD*)dst_row;
1525 for (x=0; x<height; x++)
1526 {
1527 DWORD src_value = *src++;
1528 if (src_value)
1529 *dst++ = 0;
1530 else
1531 *dst++ |= 0xff000000;
1532 }
1533 dst_row += lockeddata.Stride;
1534 }
1535 }
1536 else
1537 {
1538 /* set constant alpha of 255 */
1539 dst_row = bits;
1540 for (y=0; y<height; y++)
1541 {
1542 dst = (DWORD*)dst_row;
1543 for (x=0; x<height; x++)
1544 *dst++ |= 0xff000000;
1545 dst_row += lockeddata.Stride;
1546 }
1547 }
1548 }
1549
1550 ReleaseDC(0, screendc);
1551
1552 DeleteObject(iinfo.hbmColor);
1553 DeleteObject(iinfo.hbmMask);
1554
1555 GdipBitmapUnlockBits(*bitmap, &lockeddata);
1556
1557 HeapFree(GetProcessHeap(), 0, bits);
1558
1559 return Ok;
1560 }
1561
1562 static void generate_halftone_palette(ARGB *entries, UINT count)
1563 {
1564 static const BYTE halftone_values[6]={0x00,0x33,0x66,0x99,0xcc,0xff};
1565 UINT i;
1566
1567 for (i=0; i<8 && i<count; i++)
1568 {
1569 entries[i] = 0xff000000;
1570 if (i&1) entries[i] |= 0x800000;
1571 if (i&2) entries[i] |= 0x8000;
1572 if (i&4) entries[i] |= 0x80;
1573 }
1574
1575 if (8 < count)
1576 entries[i] = 0xffc0c0c0;
1577
1578 for (i=9; i<16 && i<count; i++)
1579 {
1580 entries[i] = 0xff000000;
1581 if (i&1) entries[i] |= 0xff0000;
1582 if (i&2) entries[i] |= 0xff00;
1583 if (i&4) entries[i] |= 0xff;
1584 }
1585
1586 for (i=16; i<40 && i<count; i++)
1587 {
1588 entries[i] = 0;
1589 }
1590
1591 for (i=40; i<256 && i<count; i++)
1592 {
1593 entries[i] = 0xff000000;
1594 entries[i] |= halftone_values[(i-40)%6];
1595 entries[i] |= halftone_values[((i-40)/6)%6] << 8;
1596 entries[i] |= halftone_values[((i-40)/36)%6] << 16;
1597 }
1598 }
1599
1600 static GpStatus get_screen_resolution(REAL *xres, REAL *yres)
1601 {
1602 HDC screendc = GetDC(0);
1603
1604 if (!screendc) return GenericError;
1605
1606 *xres = (REAL)GetDeviceCaps(screendc, LOGPIXELSX);
1607 *yres = (REAL)GetDeviceCaps(screendc, LOGPIXELSY);
1608
1609 ReleaseDC(0, screendc);
1610
1611 return Ok;
1612 }
1613
1614 GpStatus WINGDIPAPI GdipCreateBitmapFromScan0(INT width, INT height, INT stride,
1615 PixelFormat format, BYTE* scan0, GpBitmap** bitmap)
1616 {
1617 BITMAPINFO* pbmi;
1618 HBITMAP hbitmap;
1619 INT row_size, dib_stride;
1620 HDC hdc;
1621 BYTE *bits;
1622 int i;
1623 REAL xres, yres;
1624 GpStatus stat;
1625
1626 TRACE("%d %d %d 0x%x %p %p\n", width, height, stride, format, scan0, bitmap);
1627
1628 if (!bitmap) return InvalidParameter;
1629
1630 if(width <= 0 || height <= 0 || (scan0 && (stride % 4))){
1631 *bitmap = NULL;
1632 return InvalidParameter;
1633 }
1634
1635 if(scan0 && !stride)
1636 return InvalidParameter;
1637
1638 stat = get_screen_resolution(&xres, &yres);
1639 if (stat != Ok) return stat;
1640
1641 row_size = (width * PIXELFORMATBPP(format)+7) / 8;
1642 dib_stride = (row_size + 3) & ~3;
1643
1644 if(stride == 0)
1645 stride = dib_stride;
1646
1647 pbmi = GdipAlloc(sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD));
1648 if (!pbmi)
1649 return OutOfMemory;
1650
1651 pbmi->bmiHeader.biSize = sizeof(BITMAPINFOHEADER);
1652 pbmi->bmiHeader.biWidth = width;
1653 pbmi->bmiHeader.biHeight = -height;
1654 pbmi->bmiHeader.biPlanes = 1;
1655 /* FIXME: use the rest of the data from format */
1656 pbmi->bmiHeader.biBitCount = PIXELFORMATBPP(format);
1657 pbmi->bmiHeader.biCompression = BI_RGB;
1658 pbmi->bmiHeader.biSizeImage = 0;
1659 pbmi->bmiHeader.biXPelsPerMeter = 0;
1660 pbmi->bmiHeader.biYPelsPerMeter = 0;
1661 pbmi->bmiHeader.biClrUsed = 0;
1662 pbmi->bmiHeader.biClrImportant = 0;
1663
1664 hdc = CreateCompatibleDC(NULL);
1665 if (!hdc) {
1666 GdipFree(pbmi);
1667 return GenericError;
1668 }
1669
1670 hbitmap = CreateDIBSection(hdc, pbmi, DIB_RGB_COLORS, (void**)&bits, NULL, 0);
1671
1672 DeleteDC(hdc);
1673 GdipFree(pbmi);
1674
1675 if (!hbitmap) return GenericError;
1676
1677 /* copy bits to the dib if necessary */
1678 /* FIXME: should reference the bits instead of copying them */
1679 if (scan0)
1680 for (i=0; i<height; i++)
1681 memcpy(bits+i*dib_stride, scan0+i*stride, row_size);
1682
1683 *bitmap = GdipAlloc(sizeof(GpBitmap));
1684 if(!*bitmap)
1685 {
1686 DeleteObject(hbitmap);
1687 return OutOfMemory;
1688 }
1689
1690 (*bitmap)->image.type = ImageTypeBitmap;
1691 memcpy(&(*bitmap)->image.format, &ImageFormatMemoryBMP, sizeof(GUID));
1692 (*bitmap)->image.flags = ImageFlagsNone;
1693 (*bitmap)->image.palette_flags = 0;
1694 (*bitmap)->image.palette_count = 0;
1695 (*bitmap)->image.palette_size = 0;
1696 (*bitmap)->image.palette_entries = NULL;
1697 (*bitmap)->image.xres = xres;
1698 (*bitmap)->image.yres = yres;
1699 (*bitmap)->width = width;
1700 (*bitmap)->height = height;
1701 (*bitmap)->format = format;
1702 (*bitmap)->image.picture = NULL;
1703 (*bitmap)->hbitmap = hbitmap;
1704 (*bitmap)->hdc = NULL;
1705 (*bitmap)->bits = bits;
1706 (*bitmap)->stride = dib_stride;
1707
1708 if (format == PixelFormat1bppIndexed ||
1709 format == PixelFormat4bppIndexed ||
1710 format == PixelFormat8bppIndexed)
1711 {
1712 (*bitmap)->image.palette_size = (*bitmap)->image.palette_count = 1 << PIXELFORMATBPP(format);
1713 (*bitmap)->image.palette_entries = GdipAlloc(sizeof(ARGB) * ((*bitmap)->image.palette_size));
1714
1715 if (!(*bitmap)->image.palette_entries)
1716 {
1717 GdipDisposeImage(&(*bitmap)->image);
1718 *bitmap = NULL;
1719 return OutOfMemory;
1720 }
1721
1722 if (format == PixelFormat1bppIndexed)
1723 {
1724 (*bitmap)->image.palette_flags = PaletteFlagsGrayScale;
1725 (*bitmap)->image.palette_entries[0] = 0xff000000;
1726 (*bitmap)->image.palette_entries[1] = 0xffffffff;
1727 }
1728 else
1729 {
1730 if (format == PixelFormat8bppIndexed)
1731 (*bitmap)->image.palette_flags = PaletteFlagsHalftone;
1732
1733 generate_halftone_palette((*bitmap)->image.palette_entries,
1734 (*bitmap)->image.palette_count);
1735 }
1736 }
1737
1738 TRACE("<-- %p\n", *bitmap);
1739
1740 return Ok;
1741 }
1742
1743 GpStatus WINGDIPAPI GdipCreateBitmapFromStream(IStream* stream,
1744 GpBitmap **bitmap)
1745 {
1746 GpStatus stat;
1747
1748 TRACE("%p %p\n", stream, bitmap);
1749
1750 stat = GdipLoadImageFromStream(stream, (GpImage**) bitmap);
1751
1752 if(stat != Ok)
1753 return stat;
1754
1755 if((*bitmap)->image.type != ImageTypeBitmap){
1756 GdipDisposeImage(&(*bitmap)->image);
1757 *bitmap = NULL;
1758 return GenericError; /* FIXME: what error to return? */
1759 }
1760
1761 return Ok;
1762 }
1763
1764 /* FIXME: no icm */
1765 GpStatus WINGDIPAPI GdipCreateBitmapFromStreamICM(IStream* stream,
1766 GpBitmap **bitmap)
1767 {
1768 TRACE("%p %p\n", stream, bitmap);
1769
1770 return GdipCreateBitmapFromStream(stream, bitmap);
1771 }
1772
1773 GpStatus WINGDIPAPI GdipCreateCachedBitmap(GpBitmap *bitmap, GpGraphics *graphics,
1774 GpCachedBitmap **cachedbmp)
1775 {
1776 GpStatus stat;
1777
1778 TRACE("%p %p %p\n", bitmap, graphics, cachedbmp);
1779
1780 if(!bitmap || !graphics || !cachedbmp)
1781 return InvalidParameter;
1782
1783 *cachedbmp = GdipAlloc(sizeof(GpCachedBitmap));
1784 if(!*cachedbmp)
1785 return OutOfMemory;
1786
1787 stat = GdipCloneImage(&(bitmap->image), &(*cachedbmp)->image);
1788 if(stat != Ok){
1789 GdipFree(*cachedbmp);
1790 return stat;
1791 }
1792
1793 return Ok;
1794 }
1795
1796 GpStatus WINGDIPAPI GdipCreateHICONFromBitmap(GpBitmap *bitmap, HICON *hicon)
1797 {
1798 FIXME("(%p, %p)\n", bitmap, hicon);
1799
1800 return NotImplemented;
1801 }
1802
1803 GpStatus WINGDIPAPI GdipDeleteCachedBitmap(GpCachedBitmap *cachedbmp)
1804 {
1805 TRACE("%p\n", cachedbmp);
1806
1807 if(!cachedbmp)
1808 return InvalidParameter;
1809
1810 GdipDisposeImage(cachedbmp->image);
1811 GdipFree(cachedbmp);
1812
1813 return Ok;
1814 }
1815
1816 GpStatus WINGDIPAPI GdipDrawCachedBitmap(GpGraphics *graphics,
1817 GpCachedBitmap *cachedbmp, INT x, INT y)
1818 {
1819 TRACE("%p %p %d %d\n", graphics, cachedbmp, x, y);
1820
1821 if(!graphics || !cachedbmp)
1822 return InvalidParameter;
1823
1824 return GdipDrawImage(graphics, cachedbmp->image, (REAL)x, (REAL)y);
1825 }
1826
1827 GpStatus WINGDIPAPI GdipEmfToWmfBits(HENHMETAFILE hemf, UINT cbData16,
1828 LPBYTE pData16, INT iMapMode, INT eFlags)
1829 {
1830 FIXME("(%p, %d, %p, %d, %d): stub\n", hemf, cbData16, pData16, iMapMode, eFlags);
1831 return NotImplemented;
1832 }
1833
1834 GpStatus WINGDIPAPI GdipDisposeImage(GpImage *image)
1835 {
1836 TRACE("%p\n", image);
1837
1838 if(!image)
1839 return InvalidParameter;
1840
1841 if (image->picture)
1842 IPicture_Release(image->picture);
1843 if (image->type == ImageTypeBitmap)
1844 {
1845 GdipFree(((GpBitmap*)image)->bitmapbits);
1846 DeleteDC(((GpBitmap*)image)->hdc);
1847 DeleteObject(((GpBitmap*)image)->hbitmap);
1848 }
1849 GdipFree(image->palette_entries);
1850 GdipFree(image);
1851
1852 return Ok;
1853 }
1854
1855 GpStatus WINGDIPAPI GdipFindFirstImageItem(GpImage *image, ImageItemData* item)
1856 {
1857 static int calls;
1858
1859 TRACE("(%p,%p)\n", image, item);
1860
1861 if(!image || !item)
1862 return InvalidParameter;
1863
1864 if (!(calls++))
1865 FIXME("not implemented\n");
1866
1867 return NotImplemented;
1868 }
1869
1870 GpStatus WINGDIPAPI GdipGetImageItemData(GpImage *image, ImageItemData *item)
1871 {
1872 static int calls;
1873
1874 TRACE("(%p,%p)\n", image, item);
1875
1876 if (!(calls++))
1877 FIXME("not implemented\n");
1878
1879 return NotImplemented;
1880 }
1881
1882 GpStatus WINGDIPAPI GdipGetImageBounds(GpImage *image, GpRectF *srcRect,
1883 GpUnit *srcUnit)
1884 {
1885 TRACE("%p %p %p\n", image, srcRect, srcUnit);
1886
1887 if(!image || !srcRect || !srcUnit)
1888 return InvalidParameter;
1889 if(image->type == ImageTypeMetafile){
1890 *srcRect = ((GpMetafile*)image)->bounds;
1891 *srcUnit = ((GpMetafile*)image)->unit;
1892 }
1893 else if(image->type == ImageTypeBitmap){
1894 srcRect->X = srcRect->Y = 0.0;
1895 srcRect->Width = (REAL) ((GpBitmap*)image)->width;
1896 srcRect->Height = (REAL) ((GpBitmap*)image)->height;
1897 *srcUnit = UnitPixel;
1898 }
1899 else{
1900 srcRect->X = srcRect->Y = 0.0;
1901 srcRect->Width = ipicture_pixel_width(image->picture);
1902 srcRect->Height = ipicture_pixel_height(image->picture);
1903 *srcUnit = UnitPixel;
1904 }
1905
1906 TRACE("returning (%f, %f) (%f, %f) unit type %d\n", srcRect->X, srcRect->Y,
1907 srcRect->Width, srcRect->Height, *srcUnit);
1908
1909 return Ok;
1910 }
1911
1912 GpStatus WINGDIPAPI GdipGetImageDimension(GpImage *image, REAL *width,
1913 REAL *height)
1914 {
1915 TRACE("%p %p %p\n", image, width, height);
1916
1917 if(!image || !height || !width)
1918 return InvalidParameter;
1919
1920 if(image->type == ImageTypeMetafile){
1921 HDC hdc = GetDC(0);
1922
1923 *height = convert_unit(hdc, ((GpMetafile*)image)->unit) *
1924 ((GpMetafile*)image)->bounds.Height;
1925
1926 *width = convert_unit(hdc, ((GpMetafile*)image)->unit) *
1927 ((GpMetafile*)image)->bounds.Width;
1928
1929 ReleaseDC(0, hdc);
1930 }
1931
1932 else if(image->type == ImageTypeBitmap){
1933 *height = ((GpBitmap*)image)->height;
1934 *width = ((GpBitmap*)image)->width;
1935 }
1936 else{
1937 *height = ipicture_pixel_height(image->picture);
1938 *width = ipicture_pixel_width(image->picture);
1939 }
1940
1941 TRACE("returning (%f, %f)\n", *height, *width);
1942 return Ok;
1943 }
1944
1945 GpStatus WINGDIPAPI GdipGetImageGraphicsContext(GpImage *image,
1946 GpGraphics **graphics)
1947 {
1948 HDC hdc;
1949
1950 TRACE("%p %p\n", image, graphics);
1951
1952 if(!image || !graphics)
1953 return InvalidParameter;
1954
1955 if(image->type != ImageTypeBitmap){
1956 FIXME("not implemented for image type %d\n", image->type);
1957 return NotImplemented;
1958 }
1959
1960 hdc = ((GpBitmap*)image)->hdc;
1961
1962 if(!hdc){
1963 hdc = CreateCompatibleDC(0);
1964 SelectObject(hdc, ((GpBitmap*)image)->hbitmap);
1965 ((GpBitmap*)image)->hdc = hdc;
1966 }
1967
1968 return GdipCreateFromHDC(hdc, graphics);
1969 }
1970
1971 GpStatus WINGDIPAPI GdipGetImageHeight(GpImage *image, UINT *height)
1972 {
1973 TRACE("%p %p\n", image, height);
1974
1975 if(!image || !height)
1976 return InvalidParameter;
1977
1978 if(image->type == ImageTypeMetafile){
1979 HDC hdc = GetDC(0);
1980
1981 *height = roundr(convert_unit(hdc, ((GpMetafile*)image)->unit) *
1982 ((GpMetafile*)image)->bounds.Height);
1983
1984 ReleaseDC(0, hdc);
1985 }
1986 else if(image->type == ImageTypeBitmap)
1987 *height = ((GpBitmap*)image)->height;
1988 else
1989 *height = ipicture_pixel_height(image->picture);
1990
1991 TRACE("returning %d\n", *height);
1992
1993 return Ok;
1994 }
1995
1996 GpStatus WINGDIPAPI GdipGetImageHorizontalResolution(GpImage *image, REAL *res)
1997 {
1998 if(!image || !res)
1999 return InvalidParameter;
2000
2001 *res = image->xres;
2002
2003 TRACE("(%p) <-- %0.2f\n", image, *res);
2004
2005 return Ok;
2006 }
2007
2008 GpStatus WINGDIPAPI GdipGetImagePaletteSize(GpImage *image, INT *size)
2009 {
2010 TRACE("%p %p\n", image, size);
2011
2012 if(!image || !size)
2013 return InvalidParameter;
2014
2015 if (image->palette_count == 0)
2016 *size = sizeof(ColorPalette);
2017 else
2018 *size = sizeof(UINT)*2 + sizeof(ARGB)*image->palette_count;
2019
2020 TRACE("<-- %u\n", *size);
2021
2022 return Ok;
2023 }
2024
2025 /* FIXME: test this function for non-bitmap types */
2026 GpStatus WINGDIPAPI GdipGetImagePixelFormat(GpImage *image, PixelFormat *format)
2027 {
2028 TRACE("%p %p\n", image, format);
2029
2030 if(!image || !format)
2031 return InvalidParameter;
2032
2033 if(image->type != ImageTypeBitmap)
2034 *format = PixelFormat24bppRGB;
2035 else
2036 *format = ((GpBitmap*) image)->format;
2037
2038 return Ok;
2039 }
2040
2041 GpStatus WINGDIPAPI GdipGetImageRawFormat(GpImage *image, GUID *format)
2042 {
2043 if(!image || !format)
2044 return InvalidParameter;
2045
2046 memcpy(format, &image->format, sizeof(GUID));
2047
2048 return Ok;
2049 }
2050
2051 GpStatus WINGDIPAPI GdipGetImageType(GpImage *image, ImageType *type)
2052 {
2053 TRACE("%p %p\n", image, type);
2054
2055 if(!image || !type)
2056 return InvalidParameter;
2057
2058 *type = image->type;
2059
2060 return Ok;
2061 }
2062
2063 GpStatus WINGDIPAPI GdipGetImageVerticalResolution(GpImage *image, REAL *res)
2064 {
2065 if(!image || !res)
2066 return InvalidParameter;
2067
2068 *res = image->yres;
2069
2070 TRACE("(%p) <-- %0.2f\n", image, *res);
2071
2072 return Ok;
2073 }
2074
2075 GpStatus WINGDIPAPI GdipGetImageWidth(GpImage *image, UINT *width)
2076 {
2077 TRACE("%p %p\n", image, width);
2078
2079 if(!image || !width)
2080 return InvalidParameter;
2081
2082 if(image->type == ImageTypeMetafile){
2083 HDC hdc = GetDC(0);
2084
2085 *width = roundr(convert_unit(hdc, ((GpMetafile*)image)->unit) *
2086 ((GpMetafile*)image)->bounds.Width);
2087
2088 ReleaseDC(0, hdc);
2089 }
2090 else if(image->type == ImageTypeBitmap)
2091 *width = ((GpBitmap*)image)->width;
2092 else
2093 *width = ipicture_pixel_width(image->picture);
2094
2095 TRACE("returning %d\n", *width);
2096
2097 return Ok;
2098 }
2099
2100 GpStatus WINGDIPAPI GdipGetMetafileHeaderFromMetafile(GpMetafile * metafile,
2101 MetafileHeader * header)
2102 {
2103 static int calls;
2104
2105 if(!metafile || !header)
2106 return InvalidParameter;
2107
2108 if(!(calls++))
2109 FIXME("not implemented\n");
2110
2111 memset(header, 0, sizeof(MetafileHeader));
2112
2113 return Ok;
2114 }
2115
2116 GpStatus WINGDIPAPI GdipGetAllPropertyItems(GpImage *image, UINT size,
2117 UINT num, PropertyItem* items)
2118 {
2119 static int calls;
2120
2121 if(!(calls++))
2122 FIXME("not implemented\n");
2123
2124 return InvalidParameter;
2125 }
2126
2127 GpStatus WINGDIPAPI GdipGetPropertyCount(GpImage *image, UINT* num)
2128 {
2129 static int calls;
2130
2131 if(!(calls++))
2132 FIXME("not implemented\n");
2133
2134 return InvalidParameter;
2135 }
2136
2137 GpStatus WINGDIPAPI GdipGetPropertyIdList(GpImage *image, UINT num, PROPID* list)
2138 {
2139 static int calls;
2140
2141 if(!(calls++))
2142 FIXME("not implemented\n");
2143
2144 return InvalidParameter;
2145 }
2146
2147 GpStatus WINGDIPAPI GdipGetPropertyItem(GpImage *image, PROPID id, UINT size,
2148 PropertyItem* buffer)
2149 {
2150 static int calls;
2151
2152 if(!(calls++))
2153 FIXME("not implemented\n");
2154
2155 return InvalidParameter;
2156 }
2157
2158 GpStatus WINGDIPAPI GdipGetPropertyItemSize(GpImage *image, PROPID pid,
2159 UINT* size)
2160 {
2161 static int calls;
2162
2163 TRACE("%p %x %p\n", image, pid, size);
2164
2165 if(!size || !image)
2166 return InvalidParameter;
2167
2168 if(!(calls++))
2169 FIXME("not implemented\n");
2170
2171 return NotImplemented;
2172 }
2173
2174 GpStatus WINGDIPAPI GdipGetPropertySize(GpImage *image, UINT* size, UINT* num)
2175 {
2176 static int calls;
2177
2178 TRACE("(%p,%p,%p)\n", image, size, num);
2179
2180 if(!(calls++))
2181 FIXME("not implemented\n");
2182
2183 return InvalidParameter;
2184 }
2185
2186 struct image_format_dimension
2187 {
2188 const GUID *format;
2189 const GUID *dimension;
2190 };
2191
2192 struct image_format_dimension image_format_dimensions[] =
2193 {
2194 {&ImageFormatGIF, &FrameDimensionTime},
2195 {&ImageFormatIcon, &FrameDimensionResolution},
2196 {NULL}
2197 };
2198
2199 /* FIXME: Need to handle multi-framed images */
2200 GpStatus WINGDIPAPI GdipImageGetFrameCount(GpImage *image,
2201 GDIPCONST GUID* dimensionID, UINT* count)
2202 {
2203 static int calls;
2204
2205 TRACE("(%p,%s,%p)\n", image, debugstr_guid(dimensionID), count);
2206
2207 if(!image || !count)
2208 return InvalidParameter;
2209
2210 if(!(calls++))
2211 FIXME("returning frame count of 1\n");
2212
2213 *count = 1;
2214
2215 return Ok;
2216 }
2217
2218 GpStatus WINGDIPAPI GdipImageGetFrameDimensionsCount(GpImage *image,
2219 UINT* count)
2220 {
2221 /* Native gdiplus 1.1 does not yet support multiple frame dimensions. */
2222
2223 if(!image || !count)
2224 return InvalidParameter;
2225
2226 *count = 1;
2227
2228 return Ok;
2229 }
2230
2231 GpStatus WINGDIPAPI GdipImageGetFrameDimensionsList(GpImage* image,
2232 GUID* dimensionIDs, UINT count)
2233 {
2234 int i;
2235 const GUID *result=NULL;
2236
2237 TRACE("(%p,%p,%u)\n", image, dimensionIDs, count);
2238
2239 if(!image || !dimensionIDs || count != 1)
2240 return InvalidParameter;
2241
2242 for (i=0; image_format_dimensions[i].format; i++)
2243 {
2244 if (IsEqualGUID(&image->format, image_format_dimensions[i].format))
2245 {
2246 result = image_format_dimensions[i].dimension;
2247 break;
2248 }
2249 }
2250
2251 if (!result)
2252 result = &FrameDimensionPage;
2253
2254 memcpy(dimensionIDs, result, sizeof(GUID));
2255
2256 return Ok;
2257 }
2258
2259 GpStatus WINGDIPAPI GdipImageSelectActiveFrame(GpImage *image,
2260 GDIPCONST GUID* dimensionID, UINT frameidx)
2261 {
2262 static int calls;
2263
2264 if(!image || !dimensionID)
2265 return InvalidParameter;
2266
2267 if(!(calls++))
2268 FIXME("not implemented\n");
2269
2270 return Ok;
2271 }
2272
2273 GpStatus WINGDIPAPI GdipLoadImageFromFile(GDIPCONST WCHAR* filename,
2274 GpImage **image)
2275 {
2276 GpStatus stat;
2277 IStream *stream;
2278
2279 TRACE("(%s) %p\n", debugstr_w(filename), image);
2280
2281 if (!filename || !image)
2282 return InvalidParameter;
2283
2284 stat = GdipCreateStreamOnFile(filename, GENERIC_READ, &stream);
2285
2286 if (stat != Ok)
2287 return stat;
2288
2289 stat = GdipLoadImageFromStream(stream, image);
2290
2291 IStream_Release(stream);
2292
2293 return stat;
2294 }
2295
2296 /* FIXME: no icm handling */
2297 GpStatus WINGDIPAPI GdipLoadImageFromFileICM(GDIPCONST WCHAR* filename,GpImage **image)
2298 {
2299 TRACE("(%s) %p\n", debugstr_w(filename), image);
2300
2301 return GdipLoadImageFromFile(filename, image);
2302 }
2303
2304 static const WICPixelFormatGUID *wic_pixel_formats[] = {
2305 &GUID_WICPixelFormat16bppBGR555,
2306 &GUID_WICPixelFormat24bppBGR,
2307 &GUID_WICPixelFormat32bppBGR,
2308 &GUID_WICPixelFormat32bppBGRA,
2309 &GUID_WICPixelFormat32bppPBGRA,
2310 NULL
2311 };
2312
2313 static const PixelFormat wic_gdip_formats[] = {
2314 PixelFormat16bppRGB555,
2315 PixelFormat24bppRGB,
2316 PixelFormat32bppRGB,
2317 PixelFormat32bppARGB,
2318 PixelFormat32bppPARGB,
2319 };
2320
2321 static GpStatus decode_image_wic(IStream* stream, REFCLSID clsid, GpImage **image)
2322 {
2323 GpStatus status=Ok;
2324 GpBitmap *bitmap;
2325 HRESULT hr;
2326 IWICBitmapDecoder *decoder;
2327 IWICBitmapFrameDecode *frame;
2328 IWICBitmapSource *source=NULL;
2329 WICPixelFormatGUID wic_format;
2330 PixelFormat gdip_format=0;
2331 int i;
2332 UINT width, height;
2333 BitmapData lockeddata;
2334 WICRect wrc;
2335 HRESULT initresult;
2336
2337 initresult = CoInitialize(NULL);
2338
2339 hr = CoCreateInstance(clsid, NULL, CLSCTX_INPROC_SERVER,
2340 &IID_IWICBitmapDecoder, (void**)&decoder);
2341 if (FAILED(hr)) goto end;
2342
2343 hr = IWICBitmapDecoder_Initialize(decoder, (IStream*)stream, WICDecodeMetadataCacheOnLoad);
2344 if (SUCCEEDED(hr))
2345 hr = IWICBitmapDecoder_GetFrame(decoder, 0, &frame);
2346
2347 if (SUCCEEDED(hr)) /* got frame */
2348 {
2349 hr = IWICBitmapFrameDecode_GetPixelFormat(frame, &wic_format);
2350
2351 if (SUCCEEDED(hr))
2352 {
2353 for (i=0; wic_pixel_formats[i]; i++)
2354 {
2355 if (IsEqualGUID(&wic_format, wic_pixel_formats[i]))
2356 {
2357 source = (IWICBitmapSource*)frame;
2358 IWICBitmapSource_AddRef(source);
2359 gdip_format = wic_gdip_formats[i];
2360 break;
2361 }
2362 }
2363 if (!source)
2364 {
2365 /* unknown format; fall back on 32bppARGB */
2366 hr = WICConvertBitmapSource(&GUID_WICPixelFormat32bppBGRA, (IWICBitmapSource*)frame, &source);
2367 gdip_format = PixelFormat32bppARGB;
2368 }
2369 }
2370
2371 if (SUCCEEDED(hr)) /* got source */
2372 {
2373 hr = IWICBitmapSource_GetSize(source, &width, &height);
2374
2375 if (SUCCEEDED(hr))
2376 status = GdipCreateBitmapFromScan0(width, height, 0, gdip_format,
2377 NULL, &bitmap);
2378
2379 if (SUCCEEDED(hr) && status == Ok) /* created bitmap */
2380 {
2381 status = GdipBitmapLockBits(bitmap, NULL, ImageLockModeWrite,
2382 gdip_format, &lockeddata);
2383 if (status == Ok) /* locked bitmap */
2384 {
2385 wrc.X = 0;
2386 wrc.Width = width;
2387 wrc.Height = 1;
2388 for (i=0; i<height; i++)
2389 {
2390 wrc.Y = i;
2391 hr = IWICBitmapSource_CopyPixels(source, &wrc, abs(lockeddata.Stride),
2392 abs(lockeddata.Stride), (BYTE*)lockeddata.Scan0+lockeddata.Stride*i);
2393 if (FAILED(hr)) break;
2394 }
2395
2396 GdipBitmapUnlockBits(bitmap, &lockeddata);
2397 }
2398
2399 if (SUCCEEDED(hr) && status == Ok)
2400 *image = (GpImage*)bitmap;
2401 else
2402 {
2403 *image = NULL;
2404 GdipDisposeImage((GpImage*)bitmap);
2405 }
2406 }
2407
2408 IWICBitmapSource_Release(source);
2409 }
2410
2411 IWICBitmapFrameDecode_Release(frame);
2412 }
2413
2414 IWICBitmapDecoder_Release(decoder);
2415
2416 end:
2417 if (SUCCEEDED(initresult)) CoUninitialize();
2418
2419 if (FAILED(hr) && status == Ok) status = hresult_to_status(hr);
2420
2421 return status;
2422 }
2423
2424 static GpStatus decode_image_icon(IStream* stream, REFCLSID clsid, GpImage **image)
2425 {
2426 return decode_image_wic(stream, &CLSID_WICIcoDecoder, image);
2427 }
2428
2429 static GpStatus decode_image_bmp(IStream* stream, REFCLSID clsid, GpImage **image)
2430 {
2431 GpStatus status;
2432 GpBitmap* bitmap;
2433
2434 status = decode_image_wic(stream, &CLSID_WICBmpDecoder, image);
2435
2436 bitmap = (GpBitmap*)*image;
2437
2438 if (status == Ok && bitmap->format == PixelFormat32bppARGB)
2439 {
2440 /* WIC supports bmp files with alpha, but gdiplus does not */
2441 bitmap->format = PixelFormat32bppRGB;
2442 }
2443
2444 return status;
2445 }
2446
2447 static GpStatus decode_image_jpeg(IStream* stream, REFCLSID clsid, GpImage **image)
2448 {
2449 return decode_image_wic(stream, &CLSID_WICJpegDecoder, image);
2450 }
2451
2452 static GpStatus decode_image_png(IStream* stream, REFCLSID clsid, GpImage **image)
2453 {
2454 return decode_image_wic(stream, &CLSID_WICPngDecoder, image);
2455 }
2456
2457 static GpStatus decode_image_gif(IStream* stream, REFCLSID clsid, GpImage **image)
2458 {
2459 return decode_image_wic(stream, &CLSID_WICGifDecoder, image);
2460 }
2461
2462 static GpStatus decode_image_olepicture_metafile(IStream* stream, REFCLSID clsid, GpImage **image)
2463 {
2464 IPicture *pic;
2465
2466 TRACE("%p %p\n", stream, image);
2467
2468 if(!stream || !image)
2469 return InvalidParameter;
2470
2471 if(OleLoadPicture(stream, 0, FALSE, &IID_IPicture,
2472 (LPVOID*) &pic) != S_OK){
2473 TRACE("Could not load picture\n");
2474 return GenericError;
2475 }
2476
2477 /* FIXME: missing initialization code */
2478 *image = GdipAlloc(sizeof(GpMetafile));
2479 if(!*image) return OutOfMemory;
2480 (*image)->type = ImageTypeMetafile;
2481 (*image)->picture = pic;
2482 (*image)->flags = ImageFlagsNone;
2483 (*image)->palette_flags = 0;
2484 (*image)->palette_count = 0;
2485 (*image)->palette_size = 0;
2486 (*image)->palette_entries = NULL;
2487
2488 TRACE("<-- %p\n", *image);
2489
2490 return Ok;
2491 }
2492
2493 typedef GpStatus (*encode_image_func)(GpImage *image, IStream* stream,
2494 GDIPCONST CLSID* clsid, GDIPCONST EncoderParameters* params);
2495
2496 typedef GpStatus (*decode_image_func)(IStream *stream, REFCLSID clsid, GpImage** image);
2497
2498 typedef struct image_codec {
2499 ImageCodecInfo info;
2500 encode_image_func encode_func;
2501 decode_image_func decode_func;
2502 } image_codec;
2503
2504 typedef enum {
2505 BMP,
2506 JPEG,
2507 GIF,
2508 EMF,
2509 WMF,
2510 PNG,
2511 ICO,
2512 NUM_CODECS
2513 } ImageFormat;
2514
2515 static const struct image_codec codecs[NUM_CODECS];
2516
2517 static GpStatus get_decoder_info(IStream* stream, const struct image_codec **result)
2518 {
2519 BYTE signature[8];
2520 LARGE_INTEGER seek;
2521 HRESULT hr;
2522 UINT bytesread;
2523 int i, j;
2524
2525 /* seek to the start of the stream */
2526 seek.QuadPart = 0;
2527 hr = IStream_Seek(stream, seek, STREAM_SEEK_SET, NULL);
2528 if (FAILED(hr)) return hresult_to_status(hr);
2529
2530 /* read the first 8 bytes */
2531 /* FIXME: This assumes all codecs have one signature <= 8 bytes in length */
2532 hr = IStream_Read(stream, signature, 8, &bytesread);
2533 if (FAILED(hr)) return hresult_to_status(hr);
2534 if (hr == S_FALSE || bytesread == 0) return GenericError;
2535
2536 for (i = 0; i < NUM_CODECS; i++) {
2537 if ((codecs[i].info.Flags & ImageCodecFlagsDecoder) &&
2538 bytesread >= codecs[i].info.SigSize)
2539 {
2540 for (j=0; j<codecs[i].info.SigSize; j++)
2541 if ((signature[j] & codecs[i].info.SigMask[j]) != codecs[i].info.SigPattern[j])
2542 break;
2543 if (j == codecs[i].info.SigSize)
2544 {
2545 *result = &codecs[i];
2546 return Ok;
2547 }
2548 }
2549 }
2550
2551 TRACE("no match for %i byte signature %x %x %x %x %x %x %x %x\n", bytesread,
2552 signature[0],signature[1],signature[2],signature[3],
2553 signature[4],signature[5],signature[6],signature[7]);
2554
2555 return GenericError;
2556 }
2557
2558 GpStatus WINGDIPAPI GdipLoadImageFromStream(IStream* stream, GpImage **image)
2559 {
2560 GpStatus stat;
2561 LARGE_INTEGER seek;
2562 HRESULT hr;
2563 const struct image_codec *codec=NULL;
2564
2565 /* choose an appropriate image decoder */
2566 stat = get_decoder_info(stream, &codec);
2567 if (stat != Ok) return stat;
2568
2569 /* seek to the start of the stream */
2570 seek.QuadPart = 0;
2571 hr = IStream_Seek(stream, seek, STREAM_SEEK_SET, NULL);
2572 if (FAILED(hr)) return hresult_to_status(hr);
2573
2574 /* call on the image decoder to do the real work */
2575 stat = codec->decode_func(stream, &codec->info.Clsid, image);
2576
2577 /* take note of the original data format */
2578 if (stat == Ok)
2579 {
2580 memcpy(&(*image)->format, &codec->info.FormatID, sizeof(GUID));
2581 }
2582
2583 return stat;
2584 }
2585
2586 /* FIXME: no ICM */
2587 GpStatus WINGDIPAPI GdipLoadImageFromStreamICM(IStream* stream, GpImage **image)
2588 {
2589 TRACE("%p %p\n", stream, image);
2590
2591 return GdipLoadImageFromStream(stream, image);
2592 }
2593
2594 GpStatus WINGDIPAPI GdipRemovePropertyItem(GpImage *image, PROPID propId)
2595 {
2596 static int calls;
2597
2598 TRACE("(%p,%u)\n", image, propId);
2599
2600 if(!image)
2601 return InvalidParameter;
2602
2603 if(!(calls++))
2604 FIXME("not implemented\n");
2605
2606 return NotImplemented;
2607 }
2608
2609 GpStatus WINGDIPAPI GdipSetPropertyItem(GpImage *image, GDIPCONST PropertyItem* item)
2610 {
2611 static int calls;
2612
2613 TRACE("(%p,%p)\n", image, item);
2614
2615 if(!(calls++))
2616 FIXME("not implemented\n");
2617
2618 return NotImplemented;
2619 }
2620
2621 GpStatus WINGDIPAPI GdipSaveImageToFile(GpImage *image, GDIPCONST WCHAR* filename,
2622 GDIPCONST CLSID *clsidEncoder,
2623 GDIPCONST EncoderParameters *encoderParams)
2624 {
2625 GpStatus stat;
2626 IStream *stream;
2627
2628 TRACE("%p (%s) %p %p\n", image, debugstr_w(filename), clsidEncoder, encoderParams);
2629
2630 if (!image || !filename|| !clsidEncoder)
2631 return InvalidParameter;
2632
2633 stat = GdipCreateStreamOnFile(filename, GENERIC_WRITE, &stream);
2634 if (stat != Ok)
2635 return GenericError;
2636
2637 stat = GdipSaveImageToStream(image, stream, clsidEncoder, encoderParams);
2638
2639 IStream_Release(stream);
2640 return stat;
2641 }
2642
2643 /*************************************************************************
2644 * Encoding functions -
2645 * These functions encode an image in different image file formats.
2646 */
2647 #define BITMAP_FORMAT_BMP 0x4d42 /* "BM" */
2648 #define BITMAP_FORMAT_JPEG 0xd8ff
2649 #define BITMAP_FORMAT_GIF 0x4947
2650 #define BITMAP_FORMAT_PNG 0x5089
2651 #define BITMAP_FORMAT_APM 0xcdd7
2652
2653 static GpStatus encode_image_WIC(GpImage *image, IStream* stream,
2654 GDIPCONST CLSID* clsid, GDIPCONST EncoderParameters* params)
2655 {
2656 GpStatus stat;
2657 GpBitmap *bitmap;
2658 IWICBitmapEncoder *encoder;
2659 IWICBitmapFrameEncode *frameencode;
2660 IPropertyBag2 *encoderoptions;
2661 HRESULT hr;
2662 UINT width, height;
2663 PixelFormat gdipformat=0;
2664 WICPixelFormatGUID wicformat;
2665 GpRect rc;
2666 BitmapData lockeddata;
2667 HRESULT initresult;
2668 UINT i;
2669
2670 if (image->type != ImageTypeBitmap)
2671 return GenericError;
2672
2673 bitmap = (GpBitmap*)image;
2674
2675 GdipGetImageWidth(image, &width);
2676 GdipGetImageHeight(image, &height);
2677
2678 rc.X = 0;
2679 rc.Y = 0;
2680 rc.Width = width;
2681 rc.Height = height;
2682
2683 initresult = CoInitialize(NULL);
2684
2685 hr = CoCreateInstance(clsid, NULL, CLSCTX_INPROC_SERVER,
2686 &IID_IWICBitmapEncoder, (void**)&encoder);
2687 if (FAILED(hr))
2688 {
2689 if (SUCCEEDED(initresult)) CoUninitialize();
2690 return hresult_to_status(hr);
2691 }
2692
2693 hr = IWICBitmapEncoder_Initialize(encoder, stream, WICBitmapEncoderNoCache);
2694
2695 if (SUCCEEDED(hr))
2696 {
2697 hr = IWICBitmapEncoder_CreateNewFrame(encoder, &frameencode, &encoderoptions);
2698 }
2699
2700 if (SUCCEEDED(hr)) /* created frame */
2701 {
2702 hr = IWICBitmapFrameEncode_Initialize(frameencode, encoderoptions);
2703
2704 if (SUCCEEDED(hr))
2705 hr = IWICBitmapFrameEncode_SetSize(frameencode, width, height);
2706
2707 if (SUCCEEDED(hr))
2708 /* FIXME: use the resolution from the image */
2709 hr = IWICBitmapFrameEncode_SetResolution(frameencode, 96.0, 96.0);
2710
2711 if (SUCCEEDED(hr))
2712 {
2713 for (i=0; wic_pixel_formats[i]; i++)
2714 {
2715 if (wic_gdip_formats[i] == bitmap->format)
2716 break;
2717 }
2718 if (wic_pixel_formats[i])
2719 memcpy(&wicformat, wic_pixel_formats[i], sizeof(GUID));
2720 else
2721 memcpy(&wicformat, &GUID_WICPixelFormat32bppBGRA, sizeof(GUID));
2722
2723 hr = IWICBitmapFrameEncode_SetPixelFormat(frameencode, &wicformat);
2724
2725 for (i=0; wic_pixel_formats[i]; i++)
2726 {
2727 if (IsEqualGUID(&wicformat, wic_pixel_formats[i]))
2728 break;
2729 }
2730 if (wic_pixel_formats[i])
2731 gdipformat = wic_gdip_formats[i];
2732 else
2733 {
2734 ERR("cannot provide pixel format %s\n", debugstr_guid(&wicformat));
2735 hr = E_FAIL;
2736 }
2737 }
2738
2739 if (SUCCEEDED(hr))
2740 {
2741 stat = GdipBitmapLockBits(bitmap, &rc, ImageLockModeRead, gdipformat,
2742 &lockeddata);
2743
2744 if (stat == Ok)
2745 {
2746 UINT row_size = (lockeddata.Width * PIXELFORMATBPP(gdipformat) + 7)/8;
2747 BYTE *row;
2748
2749 /* write one row at a time in case stride is negative */
2750 row = lockeddata.Scan0;
2751 for (i=0; i<lockeddata.Height; i++)
2752 {
2753 hr = IWICBitmapFrameEncode_WritePixels(frameencode, 1, row_size, row_size, row);
2754 if (FAILED(hr)) break;
2755 row += lockeddata.Stride;
2756 }
2757
2758 GdipBitmapUnlockBits(bitmap, &lockeddata);
2759 }
2760 else
2761 hr = E_FAIL;
2762 }
2763
2764 if (SUCCEEDED(hr))
2765 hr = IWICBitmapFrameEncode_Commit(frameencode);
2766
2767 IWICBitmapFrameEncode_Release(frameencode);
2768 IPropertyBag2_Release(encoderoptions);
2769 }
2770
2771 if (SUCCEEDED(hr))
2772 hr = IWICBitmapEncoder_Commit(encoder);
2773
2774 IWICBitmapEncoder_Release(encoder);
2775
2776 if (SUCCEEDED(initresult)) CoUninitialize();
2777
2778 return hresult_to_status(hr);
2779 }
2780
2781 static GpStatus encode_image_BMP(GpImage *image, IStream* stream,
2782 GDIPCONST CLSID* clsid, GDIPCONST EncoderParameters* params)
2783 {
2784 return encode_image_WIC(image, stream, &CLSID_WICBmpEncoder, params);
2785 }
2786
2787 static GpStatus encode_image_png(GpImage *image, IStream* stream,
2788 GDIPCONST CLSID* clsid, GDIPCONST EncoderParameters* params)
2789 {
2790 return encode_image_WIC(image, stream, &CLSID_WICPngEncoder, params);
2791 }
2792
2793 /*****************************************************************************
2794 * GdipSaveImageToStream [GDIPLUS.@]
2795 */
2796 GpStatus WINGDIPAPI GdipSaveImageToStream(GpImage *image, IStream* stream,
2797 GDIPCONST CLSID* clsid, GDIPCONST EncoderParameters* params)
2798 {
2799 GpStatus stat;
2800 encode_image_func encode_image;
2801 int i;
2802
2803 TRACE("%p %p %p %p\n", image, stream, clsid, params);
2804
2805 if(!image || !stream)
2806 return InvalidParameter;
2807
2808 /* select correct encoder */
2809 encode_image = NULL;
2810 for (i = 0; i < NUM_CODECS; i++) {
2811 if ((codecs[i].info.Flags & ImageCodecFlagsEncoder) &&
2812 IsEqualCLSID(clsid, &codecs[i].info.Clsid))
2813 encode_image = codecs[i].encode_func;
2814 }
2815 if (encode_image == NULL)
2816 return UnknownImageFormat;
2817
2818 stat = encode_image(image, stream, clsid, params);
2819
2820 return stat;
2821 }
2822
2823 /*****************************************************************************
2824 * GdipGetImagePalette [GDIPLUS.@]
2825 */
2826 GpStatus WINGDIPAPI GdipGetImagePalette(GpImage *image, ColorPalette *palette, INT size)
2827 {
2828 TRACE("(%p,%p,%i)\n", image, palette, size);
2829
2830 if (!image || !palette)
2831 return InvalidParameter;
2832
2833 if (size < (sizeof(UINT)*2+sizeof(ARGB)*image->palette_count))
2834 {
2835 TRACE("<-- InsufficientBuffer\n");
2836 return InsufficientBuffer;
2837 }
2838
2839 palette->Flags = image->palette_flags;
2840 palette->Count = image->palette_count;
2841 memcpy(palette->Entries, image->palette_entries, sizeof(ARGB)*image->palette_count);
2842
2843 return Ok;
2844 }
2845
2846 /*****************************************************************************
2847 * GdipSetImagePalette [GDIPLUS.@]
2848 */
2849 GpStatus WINGDIPAPI GdipSetImagePalette(GpImage *image,
2850 GDIPCONST ColorPalette *palette)
2851 {
2852 TRACE("(%p,%p)\n", image, palette);
2853
2854 if(!image || !palette || palette->Count > 256)
2855 return InvalidParameter;
2856
2857 if (palette->Count > image->palette_size)
2858 {
2859 ARGB *new_palette;
2860
2861 new_palette = GdipAlloc(sizeof(ARGB) * palette->Count);
2862 if (!new_palette) return OutOfMemory;
2863
2864 GdipFree(image->palette_entries);
2865 image->palette_entries = new_palette;
2866 image->palette_size = palette->Count;
2867 }
2868
2869 image->palette_flags = palette->Flags;
2870 image->palette_count = palette->Count;
2871 memcpy(image->palette_entries, palette->Entries, sizeof(ARGB)*palette->Count);
2872
2873 return Ok;
2874 }
2875
2876 /*************************************************************************
2877 * Encoders -
2878 * Structures that represent which formats we support for encoding.
2879 */
2880
2881 /* ImageCodecInfo creation routines taken from libgdiplus */
2882 static const WCHAR bmp_codecname[] = {'B', 'u', 'i','l', 't', '-','i', 'n', ' ', 'B', 'M', 'P', 0}; /* Built-in BMP */
2883 static const WCHAR bmp_extension[] = {'*','.','B', 'M', 'P',';', '*','.', 'D','I', 'B',';', '*','.', 'R', 'L', 'E',0}; /* *.BMP;*.DIB;*.RLE */
2884 static const WCHAR bmp_mimetype[] = {'i', 'm', 'a','g', 'e', '/', 'b', 'm', 'p', 0}; /* image/bmp */
2885 static const WCHAR bmp_format[] = {'B', 'M', 'P', 0}; /* BMP */
2886 static const BYTE bmp_sig_pattern[] = { 0x42, 0x4D };
2887 static const BYTE bmp_sig_mask[] = { 0xFF, 0xFF };
2888
2889 static const WCHAR jpeg_codecname[] = {'B', 'u', 'i','l', 't', '-','i', 'n', ' ', 'J','P','E','G', 0};
2890 static const WCHAR jpeg_extension[] = {'*','.','J','P','G',';', '*','.','J','P','E','G',';', '*','.','J','P','E',';', '*','.','J','F','I','F',0};
2891 static const WCHAR jpeg_mimetype[] = {'i','m','a','g','e','/','j','p','e','g', 0};
2892 static const WCHAR jpeg_format[] = {'J','P','E','G',0};
2893 static const BYTE jpeg_sig_pattern[] = { 0xFF, 0xD8 };
2894 static const BYTE jpeg_sig_mask[] = { 0xFF, 0xFF };
2895
2896 static const WCHAR gif_codecname[] = {'B', 'u', 'i','l', 't', '-','i', 'n', ' ', 'G','I','F', 0};
2897 static const WCHAR gif_extension[] = {'*','.','G','I','F',0};
2898 static const WCHAR gif_mimetype[] = {'i','m','a','g','e','/','g','i','f', 0};
2899 static const WCHAR gif_format[] = {'G','I','F',0};
2900 static const BYTE gif_sig_pattern[4] = "GIF8";
2901 static const BYTE gif_sig_mask[] = { 0xFF, 0xFF, 0xFF, 0xFF };
2902
2903 static const WCHAR emf_codecname[] = {'B', 'u', 'i','l', 't', '-','i', 'n', ' ', 'E','M','F', 0};
2904 static const WCHAR emf_extension[] = {'*','.','E','M','F',0};
2905 static const WCHAR emf_mimetype[] = {'i','m','a','g','e','/','x','-','e','m','f', 0};
2906 static const WCHAR emf_format[] = {'E','M','F',0};
2907 static const BYTE emf_sig_pattern[] = { 0x01, 0x00, 0x00, 0x00 };
2908 static const BYTE emf_sig_mask[] = { 0xFF, 0xFF, 0xFF, 0xFF };
2909
2910 static const WCHAR wmf_codecname[] = {'B', 'u', 'i','l', 't', '-','i', 'n', ' ', 'W','M','F', 0};
2911 static const WCHAR wmf_extension[] = {'*','.','W','M','F',0};
2912 static const WCHAR wmf_mimetype[] = {'i','m','a','g','e','/','x','-','w','m','f', 0};
2913 static const WCHAR wmf_format[] = {'W','M','F',0};
2914 static const BYTE wmf_sig_pattern[] = { 0xd7, 0xcd };
2915 static const BYTE wmf_sig_mask[] = { 0xFF, 0xFF };
2916
2917 static const WCHAR png_codecname[] = {'B', 'u', 'i','l', 't', '-','i', 'n', ' ', 'P','N','G', 0};
2918 static const WCHAR png_extension[] = {'*','.','P','N','G',0};
2919 static const WCHAR png_mimetype[] = {'i','m','a','g','e','/','p','n','g', 0};
2920 static const WCHAR png_format[] = {'P','N','G',0};
2921 static const BYTE png_sig_pattern[] = { 137, 80, 78, 71, 13, 10, 26, 10, };
2922 static const BYTE png_sig_mask[] = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF };
2923
2924 static const WCHAR ico_codecname[] = {'B', 'u', 'i','l', 't', '-','i', 'n', ' ', 'I','C','O', 0};
2925 static const WCHAR ico_extension[] = {'*','.','I','C','O',0};
2926 static const WCHAR ico_mimetype[] = {'i','m','a','g','e','/','x','-','i','c','o','n', 0};
2927 static const WCHAR ico_format[] = {'I','C','O',0};
2928 static const BYTE ico_sig_pattern[] = { 0x00, 0x00, 0x01, 0x00 };
2929 static const BYTE ico_sig_mask[] = { 0xFF, 0xFF, 0xFF, 0xFF };
2930
2931 static const struct image_codec codecs[NUM_CODECS] = {
2932 {
2933 { /* BMP */
2934 /* Clsid */ { 0x557cf400, 0x1a04, 0x11d3, { 0x9a, 0x73, 0x0, 0x0, 0xf8, 0x1e, 0xf3, 0x2e } },
2935 /* FormatID */ { 0xb96b3cabU, 0x0728U, 0x11d3U, {0x9d, 0x7b, 0x00, 0x00, 0xf8, 0x1e, 0xf3, 0x2e} },
2936 /* CodecName */ bmp_codecname,
2937 /* DllName */ NULL,
2938 /* FormatDescription */ bmp_format,
2939 /* FilenameExtension */ bmp_extension,
2940 /* MimeType */ bmp_mimetype,
2941 /* Flags */ ImageCodecFlagsEncoder | ImageCodecFlagsDecoder | ImageCodecFlagsSupportBitmap | ImageCodecFlagsBuiltin,
2942 /* Version */ 1,
2943 /* SigCount */ 1,
2944 /* SigSize */ 2,
2945 /* SigPattern */ bmp_sig_pattern,
2946 /* SigMask */ bmp_sig_mask,
2947 },
2948 encode_image_BMP,
2949 decode_image_bmp
2950 },
2951 {
2952 { /* JPEG */
2953 /* Clsid */ { 0x557cf401, 0x1a04, 0x11d3, { 0x9a, 0x73, 0x0, 0x0, 0xf8, 0x1e, 0xf3, 0x2e } },
2954 /* FormatID */ { 0xb96b3caeU, 0x0728U, 0x11d3U, {0x9d, 0x7b, 0x00, 0x00, 0xf8, 0x1e, 0xf3, 0x2e} },
2955 /* CodecName */ jpeg_codecname,
2956 /* DllName */ NULL,
2957 /* FormatDescription */ jpeg_format,
2958 /* FilenameExtension */ jpeg_extension,
2959 /* MimeType */ jpeg_mimetype,
2960 /* Flags */ ImageCodecFlagsDecoder | ImageCodecFlagsSupportBitmap | ImageCodecFlagsBuiltin,
2961 /* Version */ 1,
2962 /* SigCount */ 1,
2963 /* SigSize */ 2,
2964 /* SigPattern */ jpeg_sig_pattern,
2965 /* SigMask */ jpeg_sig_mask,
2966 },
2967 NULL,
2968 decode_image_jpeg
2969 },
2970 {
2971 { /* GIF */
2972 /* Clsid */ { 0x557cf402, 0x1a04, 0x11d3, { 0x9a, 0x73, 0x0, 0x0, 0xf8, 0x1e, 0xf3, 0x2e } },
2973 /* FormatID */ { 0xb96b3cb0U, 0x0728U, 0x11d3U, {0x9d, 0x7b, 0x00, 0x00, 0xf8, 0x1e, 0xf3, 0x2e} },
2974 /* CodecName */ gif_codecname,
2975 /* DllName */ NULL,
2976 /* FormatDescription */ gif_format,
2977 /* FilenameExtension */ gif_extension,
2978 /* MimeType */ gif_mimetype,
2979 /* Flags */ ImageCodecFlagsDecoder | ImageCodecFlagsSupportBitmap | ImageCodecFlagsBuiltin,
2980 /* Version */ 1,
2981 /* SigCount */ 1,
2982 /* SigSize */ 4,
2983 /* SigPattern */ gif_sig_pattern,
2984 /* SigMask */ gif_sig_mask,
2985 },
2986 NULL,
2987 decode_image_gif
2988 },
2989 {
2990 { /* EMF */
2991 /* Clsid */ { 0x557cf403, 0x1a04, 0x11d3, { 0x9a, 0x73, 0x0, 0x0, 0xf8, 0x1e, 0xf3, 0x2e } },
2992 /* FormatID */ { 0xb96b3cacU, 0x0728U, 0x11d3U, {0x9d, 0x7b, 0x00, 0x00, 0xf8, 0x1e, 0xf3, 0x2e} },
2993 /* CodecName */ emf_codecname,
2994 /* DllName */ NULL,
2995 /* FormatDescription */ emf_format,
2996 /* FilenameExtension */ emf_extension,
2997 /* MimeType */ emf_mimetype,
2998 /* Flags */ ImageCodecFlagsDecoder | ImageCodecFlagsSupportVector | ImageCodecFlagsBuiltin,
2999 /* Version */ 1,
3000 /* SigCount */ 1,
3001 /* SigSize */ 4,
3002 /* SigPattern */ emf_sig_pattern,
3003 /* SigMask */ emf_sig_mask,
3004 },
3005 NULL,
3006 decode_image_olepicture_metafile
3007 },
3008 {
3009 { /* WMF */
3010 /* Clsid */ { 0x557cf404, 0x1a04, 0x11d3, { 0x9a, 0x73, 0x0, 0x0, 0xf8, 0x1e, 0xf3, 0x2e } },
3011 /* FormatID */ { 0xb96b3cadU, 0x0728U, 0x11d3U, {0x9d, 0x7b, 0x00, 0x00, 0xf8, 0x1e, 0xf3, 0x2e} },
3012 /* CodecName */ wmf_codecname,
3013 /* DllName */ NULL,
3014 /* FormatDescription */ wmf_format,
3015 /* FilenameExtension */ wmf_extension,
3016 /* MimeType */ wmf_mimetype,
3017 /* Flags */ ImageCodecFlagsDecoder | ImageCodecFlagsSupportVector | ImageCodecFlagsBuiltin,
3018 /* Version */ 1,
3019 /* SigCount */ 1,
3020 /* SigSize */ 2,
3021 /* SigPattern */ wmf_sig_pattern,
3022 /* SigMask */ wmf_sig_mask,
3023 },
3024 NULL,
3025 decode_image_olepicture_metafile
3026 },
3027 {
3028 { /* PNG */
3029 /* Clsid */ { 0x557cf406, 0x1a04, 0x11d3, { 0x9a, 0x73, 0x0, 0x0, 0xf8, 0x1e, 0xf3, 0x2e } },
3030 /* FormatID */ { 0xb96b3cafU, 0x0728U, 0x11d3U, {0x9d, 0x7b, 0x00, 0x00, 0xf8, 0x1e, 0xf3, 0x2e} },
3031 /* CodecName */ png_codecname,
3032 /* DllName */ NULL,
3033 /* FormatDescription */ png_format,
3034 /* FilenameExtension */ png_extension,
3035 /* MimeType */ png_mimetype,
3036 /* Flags */ ImageCodecFlagsEncoder | ImageCodecFlagsDecoder | ImageCodecFlagsSupportBitmap | ImageCodecFlagsBuiltin,
3037 /* Version */ 1,
3038 /* SigCount */ 1,
3039 /* SigSize */ 8,
3040 /* SigPattern */ png_sig_pattern,
3041 /* SigMask */ png_sig_mask,
3042 },
3043 encode_image_png,
3044 decode_image_png
3045 },
3046 {
3047 { /* ICO */
3048 /* Clsid */ { 0x557cf407, 0x1a04, 0x11d3, { 0x9a, 0x73, 0x0, 0x0, 0xf8, 0x1e, 0xf3, 0x2e } },
3049 /* FormatID */ { 0xb96b3cabU, 0x0728U, 0x11d3U, {0x9d, 0x7b, 0x00, 0x00, 0xf8, 0x1e, 0xf3, 0x2e} },
3050 /* CodecName */ ico_codecname,
3051 /* DllName */ NULL,
3052 /* FormatDescription */ ico_format,
3053 /* FilenameExtension */ ico_extension,
3054 /* MimeType */ ico_mimetype,
3055 /* Flags */ ImageCodecFlagsDecoder | ImageCodecFlagsSupportBitmap | ImageCodecFlagsBuiltin,
3056 /* Version */ 1,
3057 /* SigCount */ 1,
3058 /* SigSize */ 4,
3059 /* SigPattern */ ico_sig_pattern,
3060 /* SigMask */ ico_sig_mask,
3061 },
3062 NULL,
3063 decode_image_icon
3064 },
3065 };
3066
3067 /*****************************************************************************
3068 * GdipGetImageDecodersSize [GDIPLUS.@]
3069 */
3070 GpStatus WINGDIPAPI GdipGetImageDecodersSize(UINT *numDecoders, UINT *size)
3071 {
3072 int decoder_count=0;
3073 int i;
3074 TRACE("%p %p\n", numDecoders, size);
3075
3076 if (!numDecoders || !size)
3077 return InvalidParameter;
3078
3079 for (i=0; i<NUM_CODECS; i++)
3080 {
3081 if (codecs[i].info.Flags & ImageCodecFlagsDecoder)
3082 decoder_count++;
3083 }
3084
3085 *numDecoders = decoder_count;
3086 *size = decoder_count * sizeof(ImageCodecInfo);
3087
3088 return Ok;
3089 }
3090
3091 /*****************************************************************************
3092 * GdipGetImageDecoders [GDIPLUS.@]
3093 */
3094 GpStatus WINGDIPAPI GdipGetImageDecoders(UINT numDecoders, UINT size, ImageCodecInfo *decoders)
3095 {
3096 int i, decoder_count=0;
3097 TRACE("%u %u %p\n", numDecoders, size, decoders);
3098
3099 if (!decoders ||
3100 size != numDecoders * sizeof(ImageCodecInfo))
3101 return GenericError;
3102
3103 for (i=0; i<NUM_CODECS; i++)
3104 {
3105 if (codecs[i].info.Flags & ImageCodecFlagsDecoder)
3106 {
3107 if (decoder_count == numDecoders) return GenericError;
3108 memcpy(&decoders[decoder_count], &codecs[i].info, sizeof(ImageCodecInfo));
3109 decoder_count++;
3110 }
3111 }
3112
3113 if (decoder_count < numDecoders) return GenericError;
3114
3115 return Ok;
3116 }
3117
3118 /*****************************************************************************
3119 * GdipGetImageEncodersSize [GDIPLUS.@]
3120 */
3121 GpStatus WINGDIPAPI GdipGetImageEncodersSize(UINT *numEncoders, UINT *size)
3122 {
3123 int encoder_count=0;
3124 int i;
3125 TRACE("%p %p\n", numEncoders, size);
3126
3127 if (!numEncoders || !size)
3128 return InvalidParameter;