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 const IWICBitmapFlipRotatorVtbl *lpVtbl;
39 IWICBitmapSource *source;
43 CRITICAL_SECTION lock; /* must be held when initialized */
46 static HRESULT WINAPI FlipRotator_QueryInterface(IWICBitmapFlipRotator *iface, REFIID iid,
49 FlipRotator *This = (FlipRotator*)iface;
50 TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
52 if (!ppv) return E_INVALIDARG;
54 if (IsEqualIID(&IID_IUnknown, iid) ||
55 IsEqualIID(&IID_IWICBitmapSource, iid) ||
56 IsEqualIID(&IID_IWICBitmapFlipRotator, iid))
66 IUnknown_AddRef((IUnknown*)*ppv);
70 static ULONG WINAPI FlipRotator_AddRef(IWICBitmapFlipRotator *iface)
72 FlipRotator *This = (FlipRotator*)iface;
73 ULONG ref = InterlockedIncrement(&This->ref);
75 TRACE("(%p) refcount=%u\n", iface, ref);
80 static ULONG WINAPI FlipRotator_Release(IWICBitmapFlipRotator *iface)
82 FlipRotator *This = (FlipRotator*)iface;
83 ULONG ref = InterlockedDecrement(&This->ref);
85 TRACE("(%p) refcount=%u\n", iface, ref);
89 This->lock.DebugInfo->Spare[0] = 0;
90 DeleteCriticalSection(&This->lock);
91 if (This->source) IWICBitmapSource_Release(This->source);
92 HeapFree(GetProcessHeap(), 0, This);
98 static HRESULT WINAPI FlipRotator_GetSize(IWICBitmapFlipRotator *iface,
99 UINT *puiWidth, UINT *puiHeight)
101 FlipRotator *This = (FlipRotator*)iface;
102 TRACE("(%p,%p,%p)\n", iface, puiWidth, puiHeight);
105 return WINCODEC_ERR_WRONGSTATE;
106 else if (This->swap_xy)
107 return IWICBitmapSource_GetSize(This->source, puiHeight, puiWidth);
109 return IWICBitmapSource_GetSize(This->source, puiWidth, puiHeight);
112 static HRESULT WINAPI FlipRotator_GetPixelFormat(IWICBitmapFlipRotator *iface,
113 WICPixelFormatGUID *pPixelFormat)
115 FIXME("(%p,%p): stub\n", iface, pPixelFormat);
120 static HRESULT WINAPI FlipRotator_GetResolution(IWICBitmapFlipRotator *iface,
121 double *pDpiX, double *pDpiY)
123 FIXME("(%p,%p,%p): stub\n", iface, pDpiX, pDpiY);
128 static HRESULT WINAPI FlipRotator_CopyPalette(IWICBitmapFlipRotator *iface,
129 IWICPalette *pIPalette)
131 FIXME("(%p,%p): stub\n", iface, pIPalette);
135 static HRESULT WINAPI FlipRotator_CopyPixels(IWICBitmapFlipRotator *iface,
136 const WICRect *prc, UINT cbStride, UINT cbBufferSize, BYTE *pbBuffer)
138 FlipRotator *This = (FlipRotator*)iface;
141 UINT srcy, srcwidth, srcheight;
144 TRACE("(%p,%p,%u,%u,%p)\n", iface, prc, cbStride, cbBufferSize, pbBuffer);
146 if (!This->source) return WINCODEC_ERR_WRONGSTATE;
148 if (This->swap_xy || This->flip_x)
150 /* This requires knowledge of the pixel format. */
151 FIXME("flipping x and rotating are not implemented\n");
155 hr = IWICBitmapSource_GetSize(This->source, &srcwidth, &srcheight);
156 if (FAILED(hr)) return hr;
158 for (y=prc->Y; y - prc->Y < prc->Height; y++)
161 srcy = srcheight - 1 - y;
167 rc.Width = prc->Width;
170 hr = IWICBitmapSource_CopyPixels(This->source, &rc, cbStride, cbStride,
173 if (FAILED(hr)) break;
175 pbBuffer += cbStride;
181 static HRESULT WINAPI FlipRotator_Initialize(IWICBitmapFlipRotator *iface,
182 IWICBitmapSource *pISource, WICBitmapTransformOptions options)
184 FlipRotator *This = (FlipRotator*)iface;
187 TRACE("(%p,%p,%u)\n", iface, pISource, options);
189 EnterCriticalSection(&This->lock);
193 hr = WINCODEC_ERR_WRONGSTATE;
197 if (options&WICBitmapTransformRotate90)
200 This->flip_x = !This->flip_x;
203 if (options&WICBitmapTransformRotate180)
205 This->flip_x = !This->flip_x;
206 This->flip_y = !This->flip_y;
209 if (options&WICBitmapTransformFlipHorizontal)
210 This->flip_x = !This->flip_x;
212 if (options&WICBitmapTransformFlipVertical)
213 This->flip_y = !This->flip_y;
215 IWICBitmapSource_AddRef(pISource);
216 This->source = pISource;
219 LeaveCriticalSection(&This->lock);
224 static const IWICBitmapFlipRotatorVtbl FlipRotator_Vtbl = {
225 FlipRotator_QueryInterface,
229 FlipRotator_GetPixelFormat,
230 FlipRotator_GetResolution,
231 FlipRotator_CopyPalette,
232 FlipRotator_CopyPixels,
233 FlipRotator_Initialize
236 HRESULT FlipRotator_Create(IWICBitmapFlipRotator **fliprotator)
240 This = HeapAlloc(GetProcessHeap(), 0, sizeof(FlipRotator));
241 if (!This) return E_OUTOFMEMORY;
243 This->lpVtbl = &FlipRotator_Vtbl;
249 InitializeCriticalSection(&This->lock);
250 This->lock.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": FlipRotator.lock");
252 *fliprotator = (IWICBitmapFlipRotator*)This;