propertybag.c File Reference

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

Include dependency graph for propertybag.c:

Go to the source code of this file.

Classes
struct	PropertyBag

Macros
#define	COBJMACROS

Typedefs
typedef struct PropertyBag	PropertyBag

Functions
	WINE_DEFAULT_DEBUG_CHANNEL (wincodecs)
static PropertyBag *	impl_from_IPropertyBag2 (IPropertyBag2 *iface)
static HRESULT WINAPI	PropertyBag_QueryInterface (IPropertyBag2 *iface, REFIID iid, void **ppv)
static ULONG WINAPI	PropertyBag_AddRef (IPropertyBag2 *iface)
static ULONG WINAPI	PropertyBag_Release (IPropertyBag2 *iface)
static LONG	find_item (PropertyBag *This, LPCOLESTR name)
static HRESULT WINAPI	PropertyBag_Read (IPropertyBag2 *iface, ULONG cProperties, PROPBAG2 *pPropBag, IErrorLog *pErrLog, VARIANT *pvarValue, HRESULT *phrError)
static HRESULT WINAPI	PropertyBag_Write (IPropertyBag2 *iface, ULONG cProperties, PROPBAG2 *pPropBag, VARIANT *pvarValue)
static HRESULT WINAPI	PropertyBag_CountProperties (IPropertyBag2 *iface, ULONG *pcProperties)
static HRESULT	copy_propbag2 (PROPBAG2 *dest, const PROPBAG2 *src)
static HRESULT WINAPI	PropertyBag_GetPropertyInfo (IPropertyBag2 *iface, ULONG iProperty, ULONG cProperties, PROPBAG2 *pPropBag, ULONG *pcProperties)
static HRESULT WINAPI	PropertyBag_LoadObject (IPropertyBag2 *iface, LPCOLESTR pstrName, DWORD dwHint, IUnknown *pUnkObject, IErrorLog *pErrLog)
HRESULT	CreatePropertyBag2 (const PROPBAG2 *options, UINT count, IPropertyBag2 **ppPropertyBag2)

Variables
static const IPropertyBag2Vtbl	PropertyBag_Vtbl

Macro Definition Documentation

COBJMACROS

#define COBJMACROS

Definition at line 24 of file propertybag.c.

Typedef Documentation

PropertyBag

typedef struct PropertyBag PropertyBag

Function Documentation

copy_propbag2()

static HRESULT copy_propbag2 ( PROPBAG2 *  dest, const PROPBAG2 *  src  )

static

Definition at line 216 of file propertybag.c.

{
    dest->cfType = src->cfType;
    dest->clsid = src->clsid;
    dest->dwHint = src->dwHint;
    dest->dwType = src->dwType;
    dest->vt = src->vt;
    dest->pstrName = CoTaskMemAlloc((strlenW(src->pstrName)+1) * sizeof(WCHAR));
    if(!dest->pstrName)
        return E_OUTOFMEMORY;

    strcpyW(dest->pstrName, src->pstrName);

    return S_OK;
}

Referenced by CreatePropertyBag2(), and PropertyBag_GetPropertyInfo().

CreatePropertyBag2()

HRESULT CreatePropertyBag2	(	const PROPBAG2 *	options,
		UINT	count,
		IPropertyBag2 **	ppPropertyBag2
	)

Definition at line 281 of file propertybag.c.

{
    UINT i;
    HRESULT res = S_OK;
    PropertyBag *This;

    This = HeapAlloc(GetProcessHeap(), 0, sizeof(PropertyBag));
    if (!This) return E_OUTOFMEMORY;

    This->IPropertyBag2_iface.lpVtbl = &PropertyBag_Vtbl;
    This->ref = 1;
    This->prop_count = count;

    if (count == 0)
    {
        This->properties = NULL;
        This->values = NULL;
    }
    else
    {
        This->properties = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(PROPBAG2)*count);
        This->values = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(VARIANT)*count);

        if (!This->properties || !This->values)
            res = E_OUTOFMEMORY;
        else
            for (i=0; i < count; i++)
            {
                res = copy_propbag2(This->properties+i, options+i);
                if (FAILED(res))
                    break;
                This->properties[i].dwHint = i+1; /* 0 means unset, so we start with 1 */
            }
    }

    if (FAILED(res))
    {
        PropertyBag_Release(&This->IPropertyBag2_iface);
        *ppPropertyBag2 = NULL;
    }
    else
        *ppPropertyBag2 = &This->IPropertyBag2_iface;

    return res;
}

Referenced by BmpEncoder_CreateNewFrame(), ComponentFactory_CreateEncoderPropertyBag(), and GifEncoder_CreateNewFrame().

find_item()

static LONG find_item ( PropertyBag *  This, LPCOLESTR  name  )

static

Definition at line 110 of file propertybag.c.

{
    LONG i;
    if (!This->properties)
        return -1;
    if (!name)
        return -1;

    for (i=0; i < This->prop_count; i++)
    {
        if (strcmpW(name, This->properties[i].pstrName) == 0)
            return i;
    }

    return -1;
}

Referenced by PropertyBag_Read(), and PropertyBag_Write().

impl_from_IPropertyBag2()

static PropertyBag* impl_from_IPropertyBag2 ( IPropertyBag2 *  iface )

inlinestatic

Definition at line 45 of file propertybag.c.

{
    return CONTAINING_RECORD(iface, PropertyBag, IPropertyBag2_iface);
}

Referenced by PropertyBag_AddRef(), PropertyBag_CountProperties(), PropertyBag_GetPropertyInfo(), PropertyBag_QueryInterface(), PropertyBag_Read(), PropertyBag_Release(), and PropertyBag_Write().

PropertyBag_AddRef()

static ULONG WINAPI PropertyBag_AddRef ( IPropertyBag2 *  iface )

static

Definition at line 73 of file propertybag.c.

{
    PropertyBag *This = impl_from_IPropertyBag2(iface);
    ULONG ref = InterlockedIncrement(&This->ref);

    TRACE("(%p) refcount=%u\n", iface, ref);

    return ref;
}

PropertyBag_CountProperties()

static HRESULT WINAPI PropertyBag_CountProperties ( IPropertyBag2 *  iface, ULONG *  pcProperties  )

static

Definition at line 202 of file propertybag.c.

{
    PropertyBag *This = impl_from_IPropertyBag2(iface);

    TRACE("(%p,%p)\n", iface, pcProperties);

    if (!pcProperties)
        return E_INVALIDARG;

    *pcProperties = This->prop_count;

    return S_OK;
}

PropertyBag_GetPropertyInfo()

static HRESULT WINAPI PropertyBag_GetPropertyInfo ( IPropertyBag2 *  iface, ULONG  iProperty, ULONG  cProperties, PROPBAG2 *  pPropBag, ULONG *  pcProperties  )

static

Definition at line 232 of file propertybag.c.

{
    HRESULT res = S_OK;
    ULONG i;
    PropertyBag *This = impl_from_IPropertyBag2(iface);

    TRACE("(%p,%u,%u,%p,%p)\n", iface, iProperty, cProperties, pPropBag, pcProperties);

    if (iProperty >= This->prop_count && iProperty > 0)
        return WINCODEC_ERR_VALUEOUTOFRANGE;
    if (iProperty+cProperties > This->prop_count )
        return WINCODEC_ERR_VALUEOUTOFRANGE;

    *pcProperties = min(cProperties, This->prop_count-iProperty);

    for (i=0; i < *pcProperties; i++)
    {
        res = copy_propbag2(pPropBag+i, This->properties+iProperty+i);
        if (FAILED(res))
        {
            do {
                CoTaskMemFree( pPropBag[--i].pstrName );
            } while (i);
            break;
        }
    }

    return res;
}

PropertyBag_LoadObject()

static HRESULT WINAPI PropertyBag_LoadObject ( IPropertyBag2 *  iface, LPCOLESTR  pstrName, DWORD  dwHint, IUnknown *  pUnkObject, IErrorLog *  pErrLog  )

static

Definition at line 263 of file propertybag.c.

{
    FIXME("(%p,%s,%u,%p,%p): stub\n", iface, debugstr_w(pstrName), dwHint, pUnkObject, pErrLog);
    return E_NOTIMPL;
}

PropertyBag_QueryInterface()

static HRESULT WINAPI PropertyBag_QueryInterface ( IPropertyBag2 *  iface, REFIID  iid, void **  ppv  )

static

Definition at line 50 of file propertybag.c.

{
    PropertyBag *This = impl_from_IPropertyBag2(iface);
    TRACE("(%p,%s,%p)\n", iface, debugstr_guid(iid), ppv);

    if (!ppv) return E_INVALIDARG;

    if (IsEqualIID(&IID_IUnknown, iid) ||
        IsEqualIID(&IID_IPropertyBag2, iid))
    {
        *ppv = &This->IPropertyBag2_iface;
    }
    else
    {
        *ppv = NULL;
        return E_NOINTERFACE;
    }

    IUnknown_AddRef((IUnknown*)*ppv);
    return S_OK;
}

PropertyBag_Read()

static HRESULT WINAPI PropertyBag_Read ( IPropertyBag2 *  iface, ULONG  cProperties, PROPBAG2 *  pPropBag, IErrorLog *  pErrLog, VARIANT *  pvarValue, HRESULT *  phrError  )

static

Definition at line 127 of file propertybag.c.

{
    HRESULT res = S_OK;
    ULONG i;
    PropertyBag *This = impl_from_IPropertyBag2(iface);

    TRACE("(%p,%u,%p,%p,%p,%p)\n", iface, cProperties, pPropBag, pErrLog, pvarValue, phrError);

    for (i=0; i < cProperties; i++)
    {
        LONG idx;
        if (pPropBag[i].dwHint && pPropBag[i].dwHint <= This->prop_count)
            idx = pPropBag[i].dwHint-1;
        else
            idx = find_item(This, pPropBag[i].pstrName);

        if (idx > -1)
        {
            VariantInit(pvarValue+i);
            res = VariantCopy(pvarValue+i, This->values+idx);
            if (FAILED(res))
                break;
            phrError[i] = res;
        }
        else
        {
            res = E_FAIL;
            break;
        }
    }

    return res;
}

PropertyBag_Release()

static ULONG WINAPI PropertyBag_Release ( IPropertyBag2 *  iface )

static

Definition at line 83 of file propertybag.c.

{
    PropertyBag *This = impl_from_IPropertyBag2(iface);
    ULONG ref = InterlockedDecrement(&This->ref);

    TRACE("(%p) refcount=%u\n", iface, ref);

    if (ref == 0)
    {
        ULONG i;
        if (This->properties && This->values)
        {
            for (i=0; i < This->prop_count; i++)
            {
                CoTaskMemFree(This->properties[i].pstrName);
                VariantClear( This->values+i );
            }
        }

        HeapFree(GetProcessHeap(), 0, This->properties);
        HeapFree(GetProcessHeap(), 0, This->values);
        HeapFree(GetProcessHeap(), 0, This);
    }

    return ref;
}

Referenced by CreatePropertyBag2().

PropertyBag_Write()

static HRESULT WINAPI PropertyBag_Write ( IPropertyBag2 *  iface, ULONG  cProperties, PROPBAG2 *  pPropBag, VARIANT *  pvarValue  )

static

Definition at line 162 of file propertybag.c.

{
    HRESULT res = S_OK;
    ULONG i;
    PropertyBag *This = impl_from_IPropertyBag2(iface);

    TRACE("(%p,%u,%p,%p)\n", iface, cProperties, pPropBag, pvarValue);

    for (i=0; i < cProperties; i++)
    {
        LONG idx;
        if (pPropBag[i].dwHint && pPropBag[i].dwHint <= This->prop_count)
            idx = pPropBag[i].dwHint-1;
        else
            idx = find_item(This, pPropBag[i].pstrName);

        if (idx > -1)
        {
            if (This->properties[idx].vt != V_VT(pvarValue+i))
                return WINCODEC_ERR_PROPERTYUNEXPECTEDTYPE;
            res = VariantCopy(This->values+idx, pvarValue+i);
            if (FAILED(res))
                return E_FAIL;
        }
        else
        {
            if (pPropBag[i].pstrName)
                FIXME("Application tried to set the unknown option %s.\n",
                      debugstr_w(pPropBag[i].pstrName));

            /* FIXME: Function is not atomar on error, but MSDN does not say anything about it
             *        (no reset of items between 0 and i-1) */
            return E_FAIL;
        }
    }

    return res;
}

WINE_DEFAULT_DEBUG_CHANNEL()

WINE_DEFAULT_DEBUG_CHANNEL

(

wincodecs

)

Variable Documentation

PropertyBag_Vtbl

const IPropertyBag2Vtbl PropertyBag_Vtbl

static

Initial value:

= {
    PropertyBag_QueryInterface,
    PropertyBag_AddRef,
    PropertyBag_Release,
    PropertyBag_Read,
    PropertyBag_Write,
    PropertyBag_CountProperties,
    PropertyBag_GetPropertyInfo,
    PropertyBag_LoadObject
}

Definition at line 270 of file propertybag.c.

Referenced by CreatePropertyBag2().