dlls/windowscodecs/fliprotate.c

   1 /*
   2  * Copyright 2010 Vincent Povirk for CodeWeavers
   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 "config.h"
  20
  21 #include <stdarg.h>
  22
  23 #define COBJMACROS
  24
  25 #include "windef.h"
  26 #include "winbase.h"
  27 #include "objbase.h"
  28 #include "wincodec.h"
  29
  30 #include "wincodecs_private.h"
  31
  32 #include "wine/debug.h"
  33
  34 WINE_DEFAULT_DEBUG_CHANNEL(wincodecs);
  35
  36 typedef struct FlipRotator {
  37     const IWICBitmapFlipRotatorVtbl *lpVtbl;
  38     LONG ref;
  39     IWICBitmapSource *source;
  40     int flip_x;
  41     int flip_y;
  42     int swap_xy;
  43     CRITICAL_SECTION lock; /* must be held when initialized */
  44 } FlipRotator;
  45
  46 static HRESULT WINAPI FlipRotator_QueryInterface(IWICBitmapFlipRotator *iface, REFIID iid,
  47     void **ppv)
  48 {
  49     FlipRotator *This = (FlipRotator*)iface;
  50     TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
  51
  52     if (!ppv) return E_INVALIDARG;
  53
  54     if (IsEqualIID(&IID_IUnknown, iid) ||
  55         IsEqualIID(&IID_IWICBitmapSource, iid) ||
  56         IsEqualIID(&IID_IWICBitmapFlipRotator, iid))
  57     {
  58         *ppv = This;
  59     }
  60     else
  61     {
  62         *ppv = NULL;
  63         return E_NOINTERFACE;
  64     }
  65
  66     IUnknown_AddRef((IUnknown*)*ppv);
  67     return S_OK;
  68 }
  69
  70 static ULONG WINAPI FlipRotator_AddRef(IWICBitmapFlipRotator *iface)
  71 {
  72     FlipRotator *This = (FlipRotator*)iface;
  73     ULONG ref = InterlockedIncrement(&This->ref);
  74
  75     TRACE("(%p) refcount=%u\n", iface, ref);
  76
  77     return ref;
  78 }
  79
  80 static ULONG WINAPI FlipRotator_Release(IWICBitmapFlipRotator *iface)
  81 {
  82     FlipRotator *This = (FlipRotator*)iface;
  83     ULONG ref = InterlockedDecrement(&This->ref);
  84
  85     TRACE("(%p) refcount=%u\n", iface, ref);
  86
  87     if (ref == 0)
  88     {
  89         This->lock.DebugInfo->Spare[0] = 0;
  90         DeleteCriticalSection(&This->lock);
  91         if (This->source) IWICBitmapSource_Release(This->source);
  92         HeapFree(GetProcessHeap(), 0, This);
  93     }
  94
  95     return ref;
  96 }
  97
  98 static HRESULT WINAPI FlipRotator_GetSize(IWICBitmapFlipRotator *iface,
  99     UINT *puiWidth, UINT *puiHeight)
 100 {
 101     FIXME("(%p,%p,%p): stub\n", iface, puiWidth, puiHeight);
 102
 103     return E_NOTIMPL;
 104 }
 105
 106 static HRESULT WINAPI FlipRotator_GetPixelFormat(IWICBitmapFlipRotator *iface,
 107     WICPixelFormatGUID *pPixelFormat)
 108 {
 109     FIXME("(%p,%p): stub\n", iface, pPixelFormat);
 110
 111     return E_NOTIMPL;
 112 }
 113
 114 static HRESULT WINAPI FlipRotator_GetResolution(IWICBitmapFlipRotator *iface,
 115     double *pDpiX, double *pDpiY)
 116 {
 117     FIXME("(%p,%p,%p): stub\n", iface, pDpiX, pDpiY);
 118
 119     return E_NOTIMPL;
 120 }
 121
 122 static HRESULT WINAPI FlipRotator_CopyPalette(IWICBitmapFlipRotator *iface,
 123     IWICPalette *pIPalette)
 124 {
 125     FIXME("(%p,%p): stub\n", iface, pIPalette);
 126     return E_NOTIMPL;
 127 }
 128
 129 static HRESULT WINAPI FlipRotator_CopyPixels(IWICBitmapFlipRotator *iface,
 130     const WICRect *prc, UINT cbStride, UINT cbBufferSize, BYTE *pbBuffer)
 131 {
 132     FIXME("(%p,%p,%u,%u,%p): stub\n", iface, prc, cbStride, cbBufferSize, pbBuffer);
 133
 134     return E_NOTIMPL;
 135 }
 136
 137 static HRESULT WINAPI FlipRotator_Initialize(IWICBitmapFlipRotator *iface,
 138     IWICBitmapSource *pISource, WICBitmapTransformOptions options)
 139 {
 140     FlipRotator *This = (FlipRotator*)iface;
 141     HRESULT hr=S_OK;
 142
 143     TRACE("(%p,%p,%u)\n", iface, pISource, options);
 144
 145     EnterCriticalSection(&This->lock);
 146
 147     if (This->source)
 148     {
 149         hr = WINCODEC_ERR_WRONGSTATE;
 150         goto end;
 151     }
 152
 153     if (options&WICBitmapTransformRotate90)
 154     {
 155         This->swap_xy = 1;
 156         This->flip_x = !This->flip_x;
 157     }
 158
 159     if (options&WICBitmapTransformRotate180)
 160     {
 161         This->flip_x = !This->flip_x;
 162         This->flip_y = !This->flip_y;
 163     }
 164
 165     if (options&WICBitmapTransformFlipHorizontal)
 166         This->flip_x = !This->flip_x;
 167
 168     if (options&WICBitmapTransformFlipVertical)
 169         This->flip_y = !This->flip_y;
 170
 171     IWICBitmapSource_AddRef(pISource);
 172     This->source = pISource;
 173
 174 end:
 175     LeaveCriticalSection(&This->lock);
 176
 177     return hr;
 178 }
 179
 180 static const IWICBitmapFlipRotatorVtbl FlipRotator_Vtbl = {
 181     FlipRotator_QueryInterface,
 182     FlipRotator_AddRef,
 183     FlipRotator_Release,
 184     FlipRotator_GetSize,
 185     FlipRotator_GetPixelFormat,
 186     FlipRotator_GetResolution,
 187     FlipRotator_CopyPalette,
 188     FlipRotator_CopyPixels,
 189     FlipRotator_Initialize
 190 };
 191
 192 HRESULT FlipRotator_Create(IWICBitmapFlipRotator **fliprotator)
 193 {
 194     FlipRotator *This;
 195
 196     This = HeapAlloc(GetProcessHeap(), 0, sizeof(FlipRotator));
 197     if (!This) return E_OUTOFMEMORY;
 198
 199     This->lpVtbl = &FlipRotator_Vtbl;
 200     This->ref = 1;
 201     This->source = NULL;
 202     This->flip_x = 0;
 203     This->flip_y = 0;
 204     This->swap_xy = 0;
 205     InitializeCriticalSection(&This->lock);
 206     This->lock.DebugInfo->Spare[0] = (DWORD_PTR)(__FILE__ ": FlipRotator.lock");
 207
 208     *fliprotator = (IWICBitmapFlipRotator*)This;
 209
 210     return S_OK;
 211 }