colorcontext.c File Reference

#include <stdarg.h>
#include "windef.h"
#include "winbase.h"
#include "objbase.h"
#include "wincodecs_private.h"
#include "wine/debug.h"

Include dependency graph for colorcontext.c:

Go to the source code of this file.

Classes
struct	ColorContext

Macros
#define	COBJMACROS

Typedefs
typedef struct ColorContext	ColorContext

Functions
	WINE_DEFAULT_DEBUG_CHANNEL (wincodecs)
static ColorContext *	impl_from_IWICColorContext (IWICColorContext *iface)
static HRESULT WINAPI	ColorContext_QueryInterface (IWICColorContext *iface, REFIID iid, void **ppv)
static ULONG WINAPI	ColorContext_AddRef (IWICColorContext *iface)
static ULONG WINAPI	ColorContext_Release (IWICColorContext *iface)
static HRESULT	load_profile (const WCHAR *filename, BYTE **profile, UINT *len)
static HRESULT WINAPI	ColorContext_InitializeFromFilename (IWICColorContext *iface, LPCWSTR wzFilename)
static HRESULT WINAPI	ColorContext_InitializeFromMemory (IWICColorContext *iface, const BYTE *pbBuffer, UINT cbBufferSize)
static HRESULT WINAPI	ColorContext_InitializeFromExifColorSpace (IWICColorContext *iface, UINT value)
static HRESULT WINAPI	ColorContext_GetType (IWICColorContext *iface, WICColorContextType *pType)
static HRESULT WINAPI	ColorContext_GetProfileBytes (IWICColorContext *iface, UINT cbBuffer, BYTE *pbBuffer, UINT *pcbActual)
static HRESULT WINAPI	ColorContext_GetExifColorSpace (IWICColorContext *iface, UINT *pValue)
HRESULT	ColorContext_Create (IWICColorContext **colorcontext)

Variables
static const IWICColorContextVtbl	ColorContext_Vtbl

Macro Definition Documentation

COBJMACROS

#define COBJMACROS

Definition at line 21 of file colorcontext.c.

Typedef Documentation

ColorContext

typedef struct ColorContext ColorContext

Function Documentation

ColorContext_AddRef()

static ULONG WINAPI ColorContext_AddRef ( IWICColorContext *  iface )

static

Definition at line 70 of file colorcontext.c.

{
    ColorContext *This = impl_from_IWICColorContext(iface);
    ULONG ref = InterlockedIncrement(&This->ref);
 
    TRACE("(%p) refcount=%lu\n", iface, ref);
 
    return ref;
}

ColorContext_Create()

HRESULT ColorContext_Create

(

IWICColorContext **

colorcontext

)

Definition at line 256 of file colorcontext.c.

{
    ColorContext *This;
 
    if (!colorcontext) return E_INVALIDARG;
 
    This = malloc(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;
}

Referenced by ImagingFactory_CreateColorContext().

ColorContext_GetExifColorSpace()

static HRESULT WINAPI ColorContext_GetExifColorSpace ( IWICColorContext *  iface, UINT *  pValue  )

static

Definition at line 232 of file colorcontext.c.

{
    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;
}

ColorContext_GetProfileBytes()

static HRESULT WINAPI ColorContext_GetProfileBytes ( IWICColorContext *  iface, UINT  cbBuffer, BYTE *  pbBuffer, UINT *  pcbActual  )

static

Definition at line 213 of file colorcontext.c.

{
    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;
}

ColorContext_GetType()

static HRESULT WINAPI ColorContext_GetType ( IWICColorContext *  iface, WICColorContextType *  pType  )

static

Definition at line 201 of file colorcontext.c.

{
    ColorContext *This = impl_from_IWICColorContext(iface);
    TRACE("(%p,%p)\n", iface, pType);
 
    if (!pType) return E_INVALIDARG;
 
    *pType = This->type;
    return S_OK;
}

ColorContext_InitializeFromExifColorSpace()

static HRESULT WINAPI ColorContext_InitializeFromExifColorSpace ( IWICColorContext *  iface, UINT  value  )

static

Definition at line 186 of file colorcontext.c.

{
    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;
}

ColorContext_InitializeFromFilename()

static HRESULT WINAPI ColorContext_InitializeFromFilename ( IWICColorContext *  iface, LPCWSTR  wzFilename  )

static

Definition at line 140 of file colorcontext.c.

{
    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;
 
    free(This->profile);
    This->profile = profile;
    This->profile_len = len;
    This->type = WICColorContextProfile;
 
    return S_OK;
}

ColorContext_InitializeFromMemory()

static HRESULT WINAPI ColorContext_InitializeFromMemory ( IWICColorContext *  iface, const BYTE *  pbBuffer, UINT  cbBufferSize  )

static

Definition at line 165 of file colorcontext.c.

{
    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 = malloc(cbBufferSize))) return E_OUTOFMEMORY;
    memcpy(profile, pbBuffer, cbBufferSize);
 
    free(This->profile);
    This->profile = profile;
    This->profile_len = cbBufferSize;
    This->type = WICColorContextProfile;
 
    return S_OK;
}

ColorContext_QueryInterface()

static HRESULT WINAPI ColorContext_QueryInterface ( IWICColorContext *  iface, REFIID  iid, void **  ppv  )

static

Definition at line 47 of file colorcontext.c.

{
    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;
}

ColorContext_Release()

static ULONG WINAPI ColorContext_Release ( IWICColorContext *  iface )

static

Definition at line 80 of file colorcontext.c.

{
    ColorContext *This = impl_from_IWICColorContext(iface);
    ULONG ref = InterlockedDecrement(&This->ref);
 
    TRACE("(%p) refcount=%lu\n", iface, ref);
 
    if (ref == 0)
    {
        free(This->profile);
        free(This);
    }
 
    return ref;
}

impl_from_IWICColorContext()

static ColorContext * impl_from_IWICColorContext ( IWICColorContext *  iface )

inlinestatic

Definition at line 42 of file colorcontext.c.

{
    return CONTAINING_RECORD(iface, ColorContext, IWICColorContext_iface);
}

Referenced by ColorContext_AddRef(), ColorContext_GetExifColorSpace(), ColorContext_GetProfileBytes(), ColorContext_GetType(), ColorContext_InitializeFromExifColorSpace(), ColorContext_InitializeFromFilename(), ColorContext_InitializeFromMemory(), ColorContext_QueryInterface(), and ColorContext_Release().

load_profile()

static HRESULT load_profile ( const WCHAR *  filename, BYTE **  profile, UINT *  len  )

static

Definition at line 96 of file colorcontext.c.

{
    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 = malloc(size.u.LowPart)))
    {
        CloseHandle(handle);
        return E_OUTOFMEMORY;
    }
    ret = ReadFile(handle, *profile, size.u.LowPart, &count, NULL);
    CloseHandle(handle);
    if (!ret) {
        free(*profile);
        *profile = NULL;
        return HRESULT_FROM_WIN32(GetLastError());
    }
    if (count != size.u.LowPart) {
        free(*profile);
        *profile = NULL;
        return E_FAIL;
    }
    *len = count;
    return S_OK;
}

Referenced by ColorContext_InitializeFromFilename().

WINE_DEFAULT_DEBUG_CHANNEL()

WINE_DEFAULT_DEBUG_CHANNEL

(

wincodecs

)

Variable Documentation

ColorContext_Vtbl

const IWICColorContextVtbl ColorContext_Vtbl

static

Initial value:

= {
    ColorContext_QueryInterface,
    ColorContext_AddRef,
    ColorContext_Release,
    ColorContext_InitializeFromFilename,
    ColorContext_InitializeFromMemory,
    ColorContext_InitializeFromExifColorSpace,
    ColorContext_GetType,
    ColorContext_GetProfileBytes,
    ColorContext_GetExifColorSpace
}

Definition at line 244 of file colorcontext.c.

Referenced by ColorContext_Create().