dlls/windowscodecs/palette.c

   1 /*
   2  * Copyright 2009 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 "winreg.h"
  28 #include "objbase.h"
  29 #include "wincodec.h"
  30
  31 #include "wincodecs_private.h"
  32
  33 #include "wine/debug.h"
  34
  35 WINE_DEFAULT_DEBUG_CHANNEL(wincodecs);
  36
  37 typedef struct {
  38     const IWICPaletteVtbl *lpIWICPaletteVtbl;
  39     LONG ref;
  40 } PaletteImpl;
  41
  42 static HRESULT WINAPI PaletteImpl_QueryInterface(IWICPalette *iface, REFIID iid,
  43     void **ppv)
  44 {
  45     PaletteImpl *This = (PaletteImpl*)iface;
  46     TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
  47
  48     if (!ppv) return E_INVALIDARG;
  49
  50     if (IsEqualIID(&IID_IUnknown, iid) || IsEqualIID(&IID_IWICPalette, iid))
  51     {
  52         *ppv = This;
  53     }
  54     else
  55     {
  56         *ppv = NULL;
  57         return E_NOINTERFACE;
  58     }
  59
  60     IUnknown_AddRef((IUnknown*)*ppv);
  61     return S_OK;
  62 }
  63
  64 static ULONG WINAPI PaletteImpl_AddRef(IWICPalette *iface)
  65 {
  66     PaletteImpl *This = (PaletteImpl*)iface;
  67     ULONG ref = InterlockedIncrement(&This->ref);
  68
  69     TRACE("(%p) refcount=%u\n", iface, ref);
  70
  71     return ref;
  72 }
  73
  74 static ULONG WINAPI PaletteImpl_Release(IWICPalette *iface)
  75 {
  76     PaletteImpl *This = (PaletteImpl*)iface;
  77     ULONG ref = InterlockedDecrement(&This->ref);
  78
  79     TRACE("(%p) refcount=%u\n", iface, ref);
  80
  81     if (ref == 0)
  82         HeapFree(GetProcessHeap(), 0, This);
  83
  84     return ref;
  85 }
  86
  87 static HRESULT WINAPI PaletteImpl_InitializePredefined(IWICPalette *iface,
  88     WICBitmapPaletteType ePaletteType, BOOL fAddTransparentColor)
  89 {
  90     FIXME("(%p,%u,%i): stub\n", iface, ePaletteType, fAddTransparentColor);
  91     return E_NOTIMPL;
  92 }
  93
  94 static HRESULT WINAPI PaletteImpl_InitializeCustom(IWICPalette *iface,
  95     WICColor *pColors, UINT colorCount)
  96 {
  97     FIXME("(%p,%p,%u): stub\n", iface, pColors, colorCount);
  98     return E_NOTIMPL;
  99 }
 100
 101 static HRESULT WINAPI PaletteImpl_InitializeFromBitmap(IWICPalette *iface,
 102     IWICBitmapSource *pISurface, UINT colorCount, BOOL fAddTransparentColor)
 103 {
 104     FIXME("(%p,%p,%u,%i): stub\n", iface, pISurface, colorCount, fAddTransparentColor);
 105     return E_NOTIMPL;
 106 }
 107
 108 static HRESULT WINAPI PaletteImpl_InitializeFromPalette(IWICPalette *iface,
 109     IWICPalette *pIPalette)
 110 {
 111     FIXME("(%p,%p): stub\n", iface, pIPalette);
 112     return E_NOTIMPL;
 113 }
 114
 115 static HRESULT WINAPI PaletteImpl_GetType(IWICPalette *iface,
 116     WICBitmapPaletteType *pePaletteType)
 117 {
 118     FIXME("(%p,%p): stub\n", iface, pePaletteType);
 119     return E_NOTIMPL;
 120 }
 121
 122 static HRESULT WINAPI PaletteImpl_GetColorCount(IWICPalette *iface, UINT *pcCount)
 123 {
 124     FIXME("(%p,%p): stub\n", iface, pcCount);
 125     return E_NOTIMPL;
 126 }
 127
 128 static HRESULT WINAPI PaletteImpl_GetColors(IWICPalette *iface, UINT colorCount,
 129     WICColor *pColors, UINT *pcActualColors)
 130 {
 131     FIXME("(%p,%i,%p,%p): stub\n", iface, colorCount, pColors, pcActualColors);
 132     return E_NOTIMPL;
 133 }
 134
 135 static HRESULT WINAPI PaletteImpl_IsBlackWhite(IWICPalette *iface, BOOL *pfIsBlackWhite)
 136 {
 137     FIXME("(%p,%p): stub\n", iface, pfIsBlackWhite);
 138     return E_NOTIMPL;
 139 }
 140
 141 static HRESULT WINAPI PaletteImpl_IsGrayscale(IWICPalette *iface, BOOL *pfIsGrayscale)
 142 {
 143     FIXME("(%p,%p): stub\n", iface, pfIsGrayscale);
 144     return E_NOTIMPL;
 145 }
 146
 147 static HRESULT WINAPI PaletteImpl_HasAlpha(IWICPalette *iface, BOOL *pfHasAlpha)
 148 {
 149     FIXME("(%p,%p): stub\n", iface, pfHasAlpha);
 150     return E_NOTIMPL;
 151 }
 152
 153 static const IWICPaletteVtbl PaletteImpl_Vtbl = {
 154     PaletteImpl_QueryInterface,
 155     PaletteImpl_AddRef,
 156     PaletteImpl_Release,
 157     PaletteImpl_InitializePredefined,
 158     PaletteImpl_InitializeCustom,
 159     PaletteImpl_InitializeFromBitmap,
 160     PaletteImpl_InitializeFromPalette,
 161     PaletteImpl_GetType,
 162     PaletteImpl_GetColorCount,
 163     PaletteImpl_GetColors,
 164     PaletteImpl_IsBlackWhite,
 165     PaletteImpl_IsGrayscale,
 166     PaletteImpl_HasAlpha
 167 };
 168
 169 HRESULT PaletteImpl_Create(IWICPalette **palette)
 170 {
 171     PaletteImpl *This;
 172
 173     This = HeapAlloc(GetProcessHeap(), 0, sizeof(PaletteImpl));
 174     if (!This) return E_OUTOFMEMORY;
 175
 176     This->lpIWICPaletteVtbl = &PaletteImpl_Vtbl;
 177     This->ref = 1;
 178
 179     *palette = (IWICPalette*)This;
 180
 181     return S_OK;
 182 }