2 * Copyright 2010 Vincent Povirk for CodeWeavers
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.
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.
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
30 #include "wincodecs_private.h"
32 #include "wine/debug.h"
34 WINE_DEFAULT_DEBUG_CHANNEL(wincodecs);
36 typedef struct FlipRotator {
37 IWICBitmapFlipRotator IWICBitmapFlipRotator_iface;
39 IWICBitmapSource *source;
43 CRITICAL_SECTION lock; /* must be held when initialized */
46 static inline FlipRotator *impl_from_IWICBitmapFlipRotator(IWICBitmapFlipRotator *iface)
48 return CONTAINING_RECORD(iface, FlipRotator, IWICBitmapFlipRotator_iface);
51 static HRESULT WINAPI FlipRotator_QueryInterface(IWICBitmapFlipRotator *iface, REFIID iid,
54 FlipRotator *This = impl_from_IWICBitmapFlipRotator(iface);
55 TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
57 if (!ppv) return E_INVALIDARG;
59 if (IsEqualIID(&IID_IUnknown, iid) ||
60 IsEqualIID(&IID_IWICBitmapSource, iid) ||
61 IsEqualIID(&IID_IWICBitmapFlipRotator, iid))
63 *ppv = &This->IWICBitmapFlipRotator_iface;
71 IUnknown_AddRef((IUnknown*)*ppv);
75 static ULONG WINAPI FlipRotator_AddRef(IWICBitmapFlipRotator *iface)
77 FlipRotator *This = impl_from_IWICBitmapFlipRotator(iface);
78 ULONG ref = InterlockedIncrement(&This->ref);
80 TRACE("(%p) refcount=%u\n", iface, ref);
85 static ULONG WINAPI FlipRotator_Release(IWICBitmapFlipRotator *iface)
87 FlipRotator *This = impl_from_IWICBitmapFlipRotator(iface);
88 ULONG ref = InterlockedDecrement(&This->ref);
90 TRACE("(%p) refcount=%u\n", iface, ref);
94 This->lock.DebugInfo->Spare[0] = 0;
95 DeleteCriticalSection(&This->lock);
96 if (This->source) IWICBitmapSource_Release(This->source);
97 HeapFree(GetProcessHeap(), 0, This);
103 static HRESULT WINAPI FlipRotator_GetSize(IWICBitmapFlipRotator *iface,
104 UINT *puiWidth, UINT *puiHeight)
106 FlipRotator *This = impl_from_IWICBitmapFlipRotator(iface);
107 TRACE("(%p,%p,%p)\n", iface, puiWidth, puiHeight);
110 return WINCODEC_ERR_WRONGSTATE;
111 else if (This->swap_xy)
112 return IWICBitmapSource_GetSize(This->source, puiHeight, puiWidth);
114 return IWICBitmapSource_GetSize(This->source, puiWidth, puiHeight);
117 static HRESULT WINAPI FlipRotator_GetPixelFormat(IWICBitmapFlipRotator *iface,
118 WICPixelFormatGUID *pPixelFormat)
120 FlipRotator *This = impl_from_IWICBitmapFlipRotator(iface);
121 TRACE("(%p,%p)\n", iface, pPixelFormat);
124 return WINCODEC_ERR_WRONGSTATE;
126 return IWICBitmapSource_GetPixelFormat(This->source, pPixelFormat);
129 static HRESULT WINAPI FlipRotator_GetResolution(IWICBitmapFlipRotator *iface,
130 double *pDpiX, double *pDpiY)
132 FlipRotator *This = impl_from_IWICBitmapFlipRotator(iface);
133 TRACE("(%p,%p,%p)\n", iface, pDpiX, pDpiY);
136 return WINCODEC_ERR_WRONGSTATE;
137 else if (This->swap_xy)
138 return IWICBitmapSource_GetResolution(This->source, pDpiY, pDpiX);
140 return IWICBitmapSource_GetResolution(This->source, pDpiX, pDpiY);
143 static HRESULT WINAPI FlipRotator_CopyPalette(IWICBitmapFlipRotator *iface,
144 IWICPalette *pIPalette)
146 FlipRotator *This = impl_from_IWICBitmapFlipRotator(iface);
147 TRACE("(%p,%p)\n", iface, pIPalette);
150 return WINCODEC_ERR_WRONGSTATE;
152 return IWICBitmapSource_CopyPalette(This->source, pIPalette);
155 static HRESULT WINAPI FlipRotator_CopyPixels(IWICBitmapFlipRotator *iface,
156 const WICRect *prc, UINT cbStride, UINT cbBufferSize, BYTE *pbBuffer)
158 FlipRotator *This = impl_from_IWICBitmapFlipRotator(iface);
161 UINT srcy, srcwidth, srcheight;
165 TRACE("(%p,%p,%u,%u,%p)\n", iface, prc, cbStride, cbBufferSize, pbBuffer);
167 if (!This->source) return WINCODEC_ERR_WRONGSTATE;
169 if (This->swap_xy || This->flip_x)
171 /* This requires knowledge of the pixel format. */
172 FIXME("flipping x and rotating are not implemented\n");
176 hr = IWICBitmapSource_GetSize(This->source, &srcwidth, &srcheight);
177 if (FAILED(hr)) return hr;
182 hr = IWICBitmapFlipRotator_GetSize(iface, &width, &height);
183 if (FAILED(hr)) return hr;
187 rect.Height = height;
191 for (y=prc->Y; y - prc->Y < prc->Height; y++)
194 srcy = srcheight - 1 - y;
200 rc.Width = prc->Width;
203 hr = IWICBitmapSource_CopyPixels(This->source, &rc, cbStride, cbStride,
206 if (FAILED(hr)) break;
208 pbBuffer += cbStride;
214 static HRESULT WINAPI FlipRotator_Initialize(IWICBitmapFlipRotator *iface,
215 IWICBitmapSource *pISource, WICBitmapTransformOptions options)
217 FlipRotator *This = impl_from_IWICBitmapFlipRotator(iface);
220 TRACE("(%p,%p,%u)\n", iface, pISource, options);
222 EnterCriticalSection(&This->lock);
226 hr = WINCODEC_ERR_WRONGSTATE;
230 if (options&WICBitmapTransformRotate90)
233 This->flip_x = !This->flip_x;
236 if (options&WICBitmapTransformRotate180)
238 This->flip_x = !This->flip_x;
239 This->flip_y = !This->flip_y;
242 if (options&WICBitmapTransformFlipHorizontal)
243 This->flip_x = !This->flip_x;
245 if (options&WICBitmapTransformFlipVertical)
246 This->flip_y = !This->flip_y;
248 IWICBitmapSource_AddRef(pISource);
249 This->source = pISource;
252 LeaveCriticalSection(&This->lock);
257 static const IWICBitmapFlipRotatorVtbl FlipRotator_Vtbl = {
258 FlipRotator_QueryInterface,
262 FlipRotator_GetPixelFormat,
263 FlipRotator_GetResolution,
264 FlipRotator_CopyPalette,
265 FlipRotator_CopyPixels,
266 FlipRotator_Initialize
269 HRESULT FlipRotator_Create(IWICBitmapFlipRotator **fliprotator)
273 This = HeapAlloc(GetProcessHeap(), 0, sizeof(FlipRotator));
274 if (!This) return E_OUTOFMEMORY;
276 This->IWICBitmapFlipRotator_iface.lpVtbl = &FlipRotator_Vtbl;
282 InitializeCriticalSection(&This->lock);
283 This->lock.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": FlipRotator.lock");
285 *fliprotator = &This->IWICBitmapFlipRotator_iface;