Sweden-Number/dlls/windowscodecs/colorcontext.c

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/*
* Copyright 2012 Hans Leidekker for CodeWeavers
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <stdarg.h>
#define COBJMACROS
#include "windef.h"
#include "winbase.h"
#include "objbase.h"
#include "wincodecs_private.h"
#include "wine/debug.h"
WINE_DEFAULT_DEBUG_CHANNEL(wincodecs);
typedef struct ColorContext {
IWICColorContext IWICColorContext_iface;
LONG ref;
WICColorContextType type;
BYTE *profile;
UINT profile_len;
UINT exif_color_space;
} ColorContext;
static inline ColorContext *impl_from_IWICColorContext(IWICColorContext *iface)
{
return CONTAINING_RECORD(iface, ColorContext, IWICColorContext_iface);
}
static HRESULT WINAPI ColorContext_QueryInterface(IWICColorContext *iface, REFIID iid,
void **ppv)
{
ColorContext *This = impl_from_IWICColorContext(iface);
TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);
if (!ppv) return E_INVALIDARG;
if (IsEqualIID(&IID_IUnknown, iid) ||
IsEqualIID(&IID_IWICColorContext, iid))
{
*ppv = &This->IWICColorContext_iface;
}
else
{
*ppv = NULL;
return E_NOINTERFACE;
}
IUnknown_AddRef((IUnknown*)*ppv);
return S_OK;
}
static ULONG WINAPI ColorContext_AddRef(IWICColorContext *iface)
{
ColorContext *This = impl_from_IWICColorContext(iface);
ULONG ref = InterlockedIncrement(&This->ref);
TRACE("(%p) refcount=%u\n", iface, ref);
return ref;
}
static ULONG WINAPI ColorContext_Release(IWICColorContext *iface)
{
ColorContext *This = impl_from_IWICColorContext(iface);
ULONG ref = InterlockedDecrement(&This->ref);
TRACE("(%p) refcount=%u\n", iface, ref);
if (ref == 0)
{
HeapFree(GetProcessHeap(), 0, This->profile);
HeapFree(GetProcessHeap(), 0, This);
}
return ref;
}
static HRESULT load_profile(const WCHAR *filename, BYTE **profile, UINT *len)
{
HANDLE handle;
DWORD count;
LARGE_INTEGER size;
BOOL ret;
*len = 0;
*profile = NULL;
handle = CreateFileW(filename, GENERIC_READ, 0, NULL, OPEN_EXISTING, 0, NULL);
if (handle == INVALID_HANDLE_VALUE) return HRESULT_FROM_WIN32(GetLastError());
if (!(GetFileSizeEx(handle, &size)))
{
CloseHandle(handle);
return HRESULT_FROM_WIN32(GetLastError());
}
if (size.u.HighPart)
{
WARN("file too large\n");
CloseHandle(handle);
return E_FAIL;
}
if (!(*profile = HeapAlloc(GetProcessHeap(), 0, size.u.LowPart)))
{
CloseHandle(handle);
return E_OUTOFMEMORY;
}
ret = ReadFile(handle, *profile, size.u.LowPart, &count, NULL);
CloseHandle(handle);
if (!ret) {
HeapFree (GetProcessHeap(),0,*profile);
*profile = NULL;
return HRESULT_FROM_WIN32(GetLastError());
}
if (count != size.u.LowPart) {
HeapFree (GetProcessHeap(),0,*profile);
*profile = NULL;
return E_FAIL;
}
*len = count;
return S_OK;
}
static HRESULT WINAPI ColorContext_InitializeFromFilename(IWICColorContext *iface,
LPCWSTR wzFilename)
{
ColorContext *This = impl_from_IWICColorContext(iface);
BYTE *profile;
UINT len;
HRESULT hr;
TRACE("(%p,%s)\n", iface, debugstr_w(wzFilename));
if (This->type != WICColorContextUninitialized && This->type != WICColorContextProfile)
return WINCODEC_ERR_WRONGSTATE;
if (!wzFilename) return E_INVALIDARG;
hr = load_profile(wzFilename, &profile, &len);
if (FAILED(hr)) return hr;
HeapFree(GetProcessHeap(), 0, This->profile);
This->profile = profile;
This->profile_len = len;
This->type = WICColorContextProfile;
return S_OK;
}
static HRESULT WINAPI ColorContext_InitializeFromMemory(IWICColorContext *iface,
const BYTE *pbBuffer, UINT cbBufferSize)
{
ColorContext *This = impl_from_IWICColorContext(iface);
BYTE *profile;
TRACE("(%p,%p,%u)\n", iface, pbBuffer, cbBufferSize);
if (This->type != WICColorContextUninitialized && This->type != WICColorContextProfile)
return WINCODEC_ERR_WRONGSTATE;
if (!(profile = HeapAlloc(GetProcessHeap(), 0, cbBufferSize))) return E_OUTOFMEMORY;
memcpy(profile, pbBuffer, cbBufferSize);
HeapFree(GetProcessHeap(), 0, This->profile);
This->profile = profile;
This->profile_len = cbBufferSize;
This->type = WICColorContextProfile;
return S_OK;
}
static HRESULT WINAPI ColorContext_InitializeFromExifColorSpace(IWICColorContext *iface,
UINT value)
{
ColorContext *This = impl_from_IWICColorContext(iface);
TRACE("(%p,%u)\n", iface, value);
if (This->type != WICColorContextUninitialized && This->type != WICColorContextExifColorSpace)
return WINCODEC_ERR_WRONGSTATE;
This->exif_color_space = value;
This->type = WICColorContextExifColorSpace;
return S_OK;
}
static HRESULT WINAPI ColorContext_GetType(IWICColorContext *iface,
WICColorContextType *pType)
{
ColorContext *This = impl_from_IWICColorContext(iface);
TRACE("(%p,%p)\n", iface, pType);
if (!pType) return E_INVALIDARG;
*pType = This->type;
return S_OK;
}
static HRESULT WINAPI ColorContext_GetProfileBytes(IWICColorContext *iface,
UINT cbBuffer, BYTE *pbBuffer, UINT *pcbActual)
{
ColorContext *This = impl_from_IWICColorContext(iface);
TRACE("(%p,%u,%p,%p)\n", iface, cbBuffer, pbBuffer, pcbActual);
if (This->type != WICColorContextProfile)
return WINCODEC_ERR_NOTINITIALIZED;
if (!pcbActual) return E_INVALIDARG;
if (cbBuffer >= This->profile_len && pbBuffer)
memcpy(pbBuffer, This->profile, This->profile_len);
*pcbActual = This->profile_len;
return S_OK;
}
static HRESULT WINAPI ColorContext_GetExifColorSpace(IWICColorContext *iface,
UINT *pValue)
{
ColorContext *This = impl_from_IWICColorContext(iface);
TRACE("(%p,%p)\n", iface, pValue);
if (!pValue) return E_INVALIDARG;
*pValue = This->exif_color_space;
return S_OK;
}
static const IWICColorContextVtbl ColorContext_Vtbl = {
ColorContext_QueryInterface,
ColorContext_AddRef,
ColorContext_Release,
ColorContext_InitializeFromFilename,
ColorContext_InitializeFromMemory,
ColorContext_InitializeFromExifColorSpace,
ColorContext_GetType,
ColorContext_GetProfileBytes,
ColorContext_GetExifColorSpace
};
HRESULT ColorContext_Create(IWICColorContext **colorcontext)
{
ColorContext *This;
if (!colorcontext) return E_INVALIDARG;
This = HeapAlloc(GetProcessHeap(), 0, sizeof(ColorContext));
if (!This) return E_OUTOFMEMORY;
This->IWICColorContext_iface.lpVtbl = &ColorContext_Vtbl;
This->ref = 1;
This->type = 0;
This->profile = NULL;
This->profile_len = 0;
This->exif_color_space = ~0u;
*colorcontext = &This->IWICColorContext_iface;
return S_OK;
}