2 * Copyright 2009 Vincent Povirk for CodeWeavers
3 * Copyright 2012 Dmitry Timoshkov
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2.1 of the License, or (at your option) any later version.
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
32 #include "wincodecs_private.h"
34 #include "wine/debug.h"
36 WINE_DEFAULT_DEBUG_CHANNEL(wincodecs);
39 IWICPalette IWICPalette_iface;
43 WICBitmapPaletteType type;
44 CRITICAL_SECTION lock; /* must be held when count, colors, or type is accessed */
47 static inline PaletteImpl *impl_from_IWICPalette(IWICPalette *iface)
49 return CONTAINING_RECORD(iface, PaletteImpl, IWICPalette_iface);
52 static HRESULT WINAPI PaletteImpl_QueryInterface(IWICPalette *iface, REFIID iid,
55 PaletteImpl *This = impl_from_IWICPalette(iface);
56 TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
58 if (!ppv) return E_INVALIDARG;
60 if (IsEqualIID(&IID_IUnknown, iid) || IsEqualIID(&IID_IWICPalette, iid))
62 *ppv = &This->IWICPalette_iface;
70 IUnknown_AddRef((IUnknown*)*ppv);
74 static ULONG WINAPI PaletteImpl_AddRef(IWICPalette *iface)
76 PaletteImpl *This = impl_from_IWICPalette(iface);
77 ULONG ref = InterlockedIncrement(&This->ref);
79 TRACE("(%p) refcount=%u\n", iface, ref);
84 static ULONG WINAPI PaletteImpl_Release(IWICPalette *iface)
86 PaletteImpl *This = impl_from_IWICPalette(iface);
87 ULONG ref = InterlockedDecrement(&This->ref);
89 TRACE("(%p) refcount=%u\n", iface, ref);
93 This->lock.DebugInfo->Spare[0] = 0;
94 DeleteCriticalSection(&This->lock);
95 HeapFree(GetProcessHeap(), 0, This->colors);
96 HeapFree(GetProcessHeap(), 0, This);
102 static WICColor *generate_gray16_palette(UINT *count)
108 entries = HeapAlloc(GetProcessHeap(), 0, 16 * sizeof(WICColor));
109 if (!entries) return NULL;
111 for (i = 0; i < 16; i++)
113 entries[i] = 0xff000000;
114 entries[i] |= (i<<20) | (i<<16) | (i<<12) | (i<<8) | (i<<4) | i;
119 static WICColor *generate_gray256_palette(UINT *count)
125 entries = HeapAlloc(GetProcessHeap(), 0, 256 * sizeof(WICColor));
126 if (!entries) return NULL;
128 for (i = 0; i < 256; i++)
130 entries[i] = 0xff000000;
131 entries[i] |= (i<<16) | (i<<8) | i;
136 static WICColor *generate_halftone8_palette(UINT *count, BOOL add_transparent)
141 *count = add_transparent ? 17 : 16;
142 entries = HeapAlloc(GetProcessHeap(), 0, *count * sizeof(WICColor));
143 if (!entries) return NULL;
145 for (i = 0; i < 8; i++)
147 entries[i] = 0xff000000;
148 if (i & 1) entries[i] |= 0xff;
149 if (i & 2) entries[i] |= 0xff00;
150 if (i & 4) entries[i] |= 0xff0000;
153 for (i = 8; i < 16; i++)
155 static const DWORD halftone[8] = { 0xc0c0c0, 0x808080, 0x800000, 0x008000,
156 0x000080, 0x808000, 0x800080, 0x008080 };
157 entries[i] = 0xff000000;
158 entries[i] |= halftone[i-8];
167 static WICColor *generate_halftone27_palette(UINT *count, BOOL add_transparent)
172 *count = add_transparent ? 29 : 28;
173 entries = HeapAlloc(GetProcessHeap(), 0, *count * sizeof(WICColor));
174 if (!entries) return NULL;
176 for (i = 0; i < 27; i++)
178 static const BYTE halftone_values[4] = { 0x00,0x80,0xff };
179 entries[i] = 0xff000000;
180 entries[i] |= halftone_values[i%3];
181 entries[i] |= halftone_values[(i/3)%3] << 8;
182 entries[i] |= halftone_values[(i/9)%3] << 16;
185 entries[i++] = 0xffc0c0c0;
192 static WICColor *generate_halftone64_palette(UINT *count, BOOL add_transparent)
197 *count = add_transparent ? 73 : 72;
198 entries = HeapAlloc(GetProcessHeap(), 0, *count * sizeof(WICColor));
199 if (!entries) return NULL;
201 for (i = 0; i < 64; i++)
203 static const BYTE halftone_values[4] = { 0x00,0x55,0xaa,0xff };
204 entries[i] = 0xff000000;
205 entries[i] |= halftone_values[i%4];
206 entries[i] |= halftone_values[(i/4)%4] << 8;
207 entries[i] |= halftone_values[(i/16)%4] << 16;
210 for (i = 64; i < 72; i++)
212 static const DWORD halftone[8] = { 0xc0c0c0, 0x808080, 0x800000, 0x008000,
213 0x000080, 0x808000, 0x800080, 0x008080 };
214 entries[i] = 0xff000000;
215 entries[i] |= halftone[i-64];
224 static WICColor *generate_halftone125_palette(UINT *count, BOOL add_transparent)
229 *count = add_transparent ? 127 : 126;
230 entries = HeapAlloc(GetProcessHeap(), 0, *count * sizeof(WICColor));
231 if (!entries) return NULL;
233 for (i = 0; i < 125; i++)
235 static const BYTE halftone_values[5] = { 0x00,0x40,0x80,0xbf,0xff };
236 entries[i] = 0xff000000;
237 entries[i] |= halftone_values[i%5];
238 entries[i] |= halftone_values[(i/5)%5] << 8;
239 entries[i] |= halftone_values[(i/25)%5] << 16;
242 entries[i++] = 0xffc0c0c0;
249 static WICColor *generate_halftone216_palette(UINT *count, BOOL add_transparent)
254 *count = add_transparent ? 225 : 224;
255 entries = HeapAlloc(GetProcessHeap(), 0, *count * sizeof(WICColor));
256 if (!entries) return NULL;
258 for (i = 0; i < 216; i++)
260 static const BYTE halftone_values[6] = { 0x00,0x33,0x66,0x99,0xcc,0xff };
261 entries[i] = 0xff000000;
262 entries[i] |= halftone_values[i%6];
263 entries[i] |= halftone_values[(i/6)%6] << 8;
264 entries[i] |= halftone_values[(i/36)%6] << 16;
267 for (i = 216; i < 224; i++)
269 static const DWORD halftone[8] = { 0xc0c0c0, 0x808080, 0x800000, 0x008000,
270 0x000080, 0x808000, 0x800080, 0x008080 };
271 entries[i] = 0xff000000;
272 entries[i] |= halftone[i-216];
281 static WICColor *generate_halftone252_palette(UINT *count, BOOL add_transparent)
286 *count = add_transparent ? 253 : 252;
287 entries = HeapAlloc(GetProcessHeap(), 0, *count * sizeof(WICColor));
288 if (!entries) return NULL;
290 for (i = 0; i < 252; i++)
292 static const BYTE halftone_values_rb[6] = { 0x00,0x33,0x66,0x99,0xcc,0xff };
293 static const BYTE halftone_values_g[7] = { 0x00,0x2b,0x55,0x80,0xaa,0xd5,0xff };
294 entries[i] = 0xff000000;
295 entries[i] |= halftone_values_rb[i%6];
296 entries[i] |= halftone_values_g[(i/6)%7] << 8;
297 entries[i] |= halftone_values_rb[(i/42)%6] << 16;
306 static WICColor *generate_halftone256_palette(UINT *count, BOOL add_transparent)
312 entries = HeapAlloc(GetProcessHeap(), 0, 256 * sizeof(WICColor));
313 if (!entries) return NULL;
315 for (i = 0; i < 256; i++)
317 static const BYTE halftone_values_b[4] = { 0x00,0x55,0xaa,0xff };
318 static const BYTE halftone_values_gr[8] = { 0x00,0x24,0x49,0x6d,0x92,0xb6,0xdb,0xff };
319 entries[i] = 0xff000000;
320 entries[i] |= halftone_values_b[i%4];
321 entries[i] |= halftone_values_gr[(i/4)%8] << 8;
322 entries[i] |= halftone_values_gr[(i/32)%8] << 16;
331 static HRESULT WINAPI PaletteImpl_InitializePredefined(IWICPalette *iface,
332 WICBitmapPaletteType type, BOOL add_transparent)
334 PaletteImpl *This = impl_from_IWICPalette(iface);
338 TRACE("(%p,%u,%d)\n", iface, type, add_transparent);
342 case WICBitmapPaletteTypeFixedBW:
344 colors = HeapAlloc(GetProcessHeap(), 0, count * sizeof(WICColor));
345 if (!colors) return E_OUTOFMEMORY;
346 colors[0] = 0xff000000;
347 colors[1] = 0xffffffff;
350 case WICBitmapPaletteTypeFixedGray4:
352 colors = HeapAlloc(GetProcessHeap(), 0, count * sizeof(WICColor));
353 if (!colors) return E_OUTOFMEMORY;
354 colors[0] = 0xff000000;
355 colors[1] = 0xff555555;
356 colors[2] = 0xffaaaaaa;
357 colors[3] = 0xffffffff;
360 case WICBitmapPaletteTypeFixedGray16:
361 colors = generate_gray16_palette(&count);
362 if (!colors) return E_OUTOFMEMORY;
365 case WICBitmapPaletteTypeFixedGray256:
366 colors = generate_gray256_palette(&count);
367 if (!colors) return E_OUTOFMEMORY;
370 case WICBitmapPaletteTypeFixedHalftone8:
371 colors = generate_halftone8_palette(&count, add_transparent);
372 if (!colors) return E_OUTOFMEMORY;
375 case WICBitmapPaletteTypeFixedHalftone27:
376 colors = generate_halftone27_palette(&count, add_transparent);
377 if (!colors) return E_OUTOFMEMORY;
380 case WICBitmapPaletteTypeFixedHalftone64:
381 colors = generate_halftone64_palette(&count, add_transparent);
382 if (!colors) return E_OUTOFMEMORY;
385 case WICBitmapPaletteTypeFixedHalftone125:
386 colors = generate_halftone125_palette(&count, add_transparent);
387 if (!colors) return E_OUTOFMEMORY;
390 case WICBitmapPaletteTypeFixedHalftone216:
391 colors = generate_halftone216_palette(&count, add_transparent);
392 if (!colors) return E_OUTOFMEMORY;
395 case WICBitmapPaletteTypeFixedHalftone252:
396 colors = generate_halftone252_palette(&count, add_transparent);
397 if (!colors) return E_OUTOFMEMORY;
400 case WICBitmapPaletteTypeFixedHalftone256:
401 colors = generate_halftone256_palette(&count, add_transparent);
402 if (!colors) return E_OUTOFMEMORY;
406 WARN("invalid palette type %u\n", type);
410 EnterCriticalSection(&This->lock);
411 HeapFree(GetProcessHeap(), 0, This->colors);
412 This->colors = colors;
415 LeaveCriticalSection(&This->lock);
420 static HRESULT WINAPI PaletteImpl_InitializeCustom(IWICPalette *iface,
421 WICColor *pColors, UINT colorCount)
423 PaletteImpl *This = impl_from_IWICPalette(iface);
424 WICColor *new_colors;
426 TRACE("(%p,%p,%u)\n", iface, pColors, colorCount);
434 if (!pColors) return E_INVALIDARG;
435 new_colors = HeapAlloc(GetProcessHeap(), 0, sizeof(WICColor) * colorCount);
436 if (!new_colors) return E_OUTOFMEMORY;
437 memcpy(new_colors, pColors, sizeof(WICColor) * colorCount);
440 EnterCriticalSection(&This->lock);
441 HeapFree(GetProcessHeap(), 0, This->colors);
442 This->colors = new_colors;
443 This->count = colorCount;
444 This->type = WICBitmapPaletteTypeCustom;
445 LeaveCriticalSection(&This->lock);
450 static HRESULT WINAPI PaletteImpl_InitializeFromBitmap(IWICPalette *iface,
451 IWICBitmapSource *pISurface, UINT colorCount, BOOL fAddTransparentColor)
453 FIXME("(%p,%p,%u,%i): stub\n", iface, pISurface, colorCount, fAddTransparentColor);
457 static HRESULT WINAPI PaletteImpl_InitializeFromPalette(IWICPalette *iface,
460 PaletteImpl *This = impl_from_IWICPalette(iface);
462 WICColor *colors = NULL;
463 WICBitmapPaletteType type;
466 TRACE("(%p,%p)\n", iface, source);
468 if (!source) return E_INVALIDARG;
470 hr = IWICPalette_GetType(source, &type);
471 if (hr != S_OK) return hr;
472 hr = IWICPalette_GetColorCount(source, &count);
473 if (hr != S_OK) return hr;
476 colors = HeapAlloc(GetProcessHeap(), 0, sizeof(WICColor) * count);
477 if (!colors) return E_OUTOFMEMORY;
478 hr = IWICPalette_GetColors(source, count, colors, &count);
481 HeapFree(GetProcessHeap(), 0, colors);
486 EnterCriticalSection(&This->lock);
487 HeapFree(GetProcessHeap(), 0, This->colors);
488 This->colors = colors;
491 LeaveCriticalSection(&This->lock);
496 static HRESULT WINAPI PaletteImpl_GetType(IWICPalette *iface,
497 WICBitmapPaletteType *pePaletteType)
499 PaletteImpl *This = impl_from_IWICPalette(iface);
501 TRACE("(%p,%p)\n", iface, pePaletteType);
503 if (!pePaletteType) return E_INVALIDARG;
505 EnterCriticalSection(&This->lock);
506 *pePaletteType = This->type;
507 LeaveCriticalSection(&This->lock);
512 static HRESULT WINAPI PaletteImpl_GetColorCount(IWICPalette *iface, UINT *pcCount)
514 PaletteImpl *This = impl_from_IWICPalette(iface);
516 TRACE("(%p,%p)\n", iface, pcCount);
518 if (!pcCount) return E_INVALIDARG;
520 EnterCriticalSection(&This->lock);
521 *pcCount = This->count;
522 LeaveCriticalSection(&This->lock);
527 static HRESULT WINAPI PaletteImpl_GetColors(IWICPalette *iface, UINT colorCount,
528 WICColor *pColors, UINT *pcActualColors)
530 PaletteImpl *This = impl_from_IWICPalette(iface);
532 TRACE("(%p,%i,%p,%p)\n", iface, colorCount, pColors, pcActualColors);
534 if (!pColors || !pcActualColors) return E_INVALIDARG;
536 EnterCriticalSection(&This->lock);
538 if (This->count < colorCount) colorCount = This->count;
540 memcpy(pColors, This->colors, sizeof(WICColor) * colorCount);
542 *pcActualColors = colorCount;
544 LeaveCriticalSection(&This->lock);
549 static HRESULT WINAPI PaletteImpl_IsBlackWhite(IWICPalette *iface, BOOL *pfIsBlackWhite)
551 PaletteImpl *This = impl_from_IWICPalette(iface);
553 TRACE("(%p,%p)\n", iface, pfIsBlackWhite);
555 if (!pfIsBlackWhite) return E_INVALIDARG;
557 EnterCriticalSection(&This->lock);
558 if (This->type == WICBitmapPaletteTypeFixedBW)
559 *pfIsBlackWhite = TRUE;
561 *pfIsBlackWhite = FALSE;
562 LeaveCriticalSection(&This->lock);
567 static HRESULT WINAPI PaletteImpl_IsGrayscale(IWICPalette *iface, BOOL *pfIsGrayscale)
569 PaletteImpl *This = impl_from_IWICPalette(iface);
571 TRACE("(%p,%p)\n", iface, pfIsGrayscale);
573 if (!pfIsGrayscale) return E_INVALIDARG;
575 EnterCriticalSection(&This->lock);
578 case WICBitmapPaletteTypeFixedBW:
579 case WICBitmapPaletteTypeFixedGray4:
580 case WICBitmapPaletteTypeFixedGray16:
581 case WICBitmapPaletteTypeFixedGray256:
582 *pfIsGrayscale = TRUE;
585 *pfIsGrayscale = FALSE;
587 LeaveCriticalSection(&This->lock);
592 static HRESULT WINAPI PaletteImpl_HasAlpha(IWICPalette *iface, BOOL *pfHasAlpha)
594 PaletteImpl *This = impl_from_IWICPalette(iface);
597 TRACE("(%p,%p)\n", iface, pfHasAlpha);
599 if (!pfHasAlpha) return E_INVALIDARG;
603 EnterCriticalSection(&This->lock);
604 for (i=0; i<This->count; i++)
605 if ((This->colors[i]&0xff000000) != 0xff000000)
610 LeaveCriticalSection(&This->lock);
615 static const IWICPaletteVtbl PaletteImpl_Vtbl = {
616 PaletteImpl_QueryInterface,
619 PaletteImpl_InitializePredefined,
620 PaletteImpl_InitializeCustom,
621 PaletteImpl_InitializeFromBitmap,
622 PaletteImpl_InitializeFromPalette,
624 PaletteImpl_GetColorCount,
625 PaletteImpl_GetColors,
626 PaletteImpl_IsBlackWhite,
627 PaletteImpl_IsGrayscale,
631 HRESULT PaletteImpl_Create(IWICPalette **palette)
635 This = HeapAlloc(GetProcessHeap(), 0, sizeof(PaletteImpl));
636 if (!This) return E_OUTOFMEMORY;
638 This->IWICPalette_iface.lpVtbl = &PaletteImpl_Vtbl;
642 This->type = WICBitmapPaletteTypeCustom;
643 InitializeCriticalSection(&This->lock);
644 This->lock.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": PaletteImpl.lock");
646 *palette = &This->IWICPalette_iface;