Sweden-Number/dlls/ddraw/palette.c

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/*
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* Copyright 2006 Stefan Dösinger
*
* 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 "config.h"
#include "wine/port.h"
#include "ddraw_private.h"
WINE_DEFAULT_DEBUG_CHANNEL(ddraw);
/*****************************************************************************
* IDirectDrawPalette::QueryInterface
*
* A usual QueryInterface implementation. Can only Query IUnknown and
* IDirectDrawPalette
*
* Params:
* refiid: The interface id queried for
* obj: Address to return the interface pointer at
*
* Returns:
* S_OK on success
* E_NOINTERFACE if the requested interface wasn't found
*****************************************************************************/
static HRESULT WINAPI
IDirectDrawPaletteImpl_QueryInterface(IDirectDrawPalette *iface,
REFIID refiid,
void **obj)
{
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TRACE("iface %p, riid %s, object %p.\n", iface, debugstr_guid(refiid), obj);
if (IsEqualGUID(refiid, &IID_IUnknown)
|| IsEqualGUID(refiid, &IID_IDirectDrawPalette))
{
*obj = iface;
IDirectDrawPalette_AddRef(iface);
return S_OK;
}
else
{
*obj = NULL;
return E_NOINTERFACE;
}
}
/*****************************************************************************
* IDirectDrawPaletteImpl::AddRef
*
* Increases the refcount.
*
* Returns:
* The new refcount
*
*****************************************************************************/
static ULONG WINAPI
IDirectDrawPaletteImpl_AddRef(IDirectDrawPalette *iface)
{
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IDirectDrawPaletteImpl *This = (IDirectDrawPaletteImpl *)iface;
ULONG ref = InterlockedIncrement(&This->ref);
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TRACE("%p increasing refcount to %u.\n", This, ref);
return ref;
}
/*****************************************************************************
* IDirectDrawPaletteImpl::Release
*
* Reduces the refcount. If the refcount falls to 0, the object is destroyed
*
* Returns:
* The new refcount
*
*****************************************************************************/
static ULONG WINAPI
IDirectDrawPaletteImpl_Release(IDirectDrawPalette *iface)
{
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IDirectDrawPaletteImpl *This = (IDirectDrawPaletteImpl *)iface;
ULONG ref = InterlockedDecrement(&This->ref);
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TRACE("%p decreasing refcount to %u.\n", This, ref);
if (ref == 0)
{
EnterCriticalSection(&ddraw_cs);
IWineD3DPalette_Release(This->wineD3DPalette);
if(This->ifaceToRelease)
{
IUnknown_Release(This->ifaceToRelease);
}
LeaveCriticalSection(&ddraw_cs);
HeapFree(GetProcessHeap(), 0, This);
}
return ref;
}
/*****************************************************************************
* IDirectDrawPalette::Initialize
*
* Initializes the palette. As we start initialized, return
* DDERR_ALREADYINITIALIZED
*
* Params:
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* DD: DirectDraw interface this palette is assigned to
* Flags: Some flags, as usual
* ColorTable: The startup color table
*
* Returns:
* DDERR_ALREADYINITIALIZED
*
*****************************************************************************/
static HRESULT WINAPI
IDirectDrawPaletteImpl_Initialize(IDirectDrawPalette *iface,
IDirectDraw *DD,
DWORD Flags,
PALETTEENTRY *ColorTable)
{
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TRACE("iface %p, ddraw %p, flags %#x, entries %p.\n",
iface, DD, Flags, ColorTable);
return DDERR_ALREADYINITIALIZED;
}
/*****************************************************************************
* IDirectDrawPalette::GetCaps
*
* Returns the palette description
*
* Params:
* Caps: Address to store the caps at
*
* Returns:
* D3D_OK on success
* DDERR_INVALIDPARAMS if Caps is NULL
* For more details, see IWineD3DPalette::GetCaps
*
*****************************************************************************/
static HRESULT WINAPI
IDirectDrawPaletteImpl_GetCaps(IDirectDrawPalette *iface,
DWORD *Caps)
{
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IDirectDrawPaletteImpl *This = (IDirectDrawPaletteImpl *)iface;
HRESULT hr;
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TRACE("iface %p, caps %p.\n", iface, Caps);
EnterCriticalSection(&ddraw_cs);
hr = IWineD3DPalette_GetCaps(This->wineD3DPalette, Caps);
LeaveCriticalSection(&ddraw_cs);
return hr;
}
/*****************************************************************************
* IDirectDrawPalette::SetEntries
*
* Sets the palette entries from a PALETTEENTRY structure. WineD3D takes
* care for updating the surface.
*
* Params:
* Flags: Flags, as usual
* Start: First palette entry to set
* Count: Number of entries to set
* PalEnt: Source entries
*
* Returns:
* D3D_OK on success
* DDERR_INVALIDPARAMS if PalEnt is NULL
* For details, see IWineD3DDevice::SetEntries
*
*****************************************************************************/
static HRESULT WINAPI
IDirectDrawPaletteImpl_SetEntries(IDirectDrawPalette *iface,
DWORD Flags,
DWORD Start,
DWORD Count,
PALETTEENTRY *PalEnt)
{
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IDirectDrawPaletteImpl *This = (IDirectDrawPaletteImpl *)iface;
HRESULT hr;
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TRACE("iface %p, flags %#x, start %u, count %u, entries %p.\n",
iface, Flags, Start, Count, PalEnt);
if(!PalEnt)
return DDERR_INVALIDPARAMS;
EnterCriticalSection(&ddraw_cs);
hr = IWineD3DPalette_SetEntries(This->wineD3DPalette, Flags, Start, Count, PalEnt);
LeaveCriticalSection(&ddraw_cs);
return hr;
}
/*****************************************************************************
* IDirectDrawPalette::GetEntries
*
* Returns the entries stored in this interface.
*
* Params:
* Flags: Flags :)
* Start: First entry to return
* Count: The number of entries to return
* PalEnt: PALETTEENTRY structure to write the entries to
*
* Returns:
* D3D_OK on success
* DDERR_INVALIDPARAMS if PalEnt is NULL
* For details, see IWineD3DDevice::SetEntries
*
*****************************************************************************/
static HRESULT WINAPI
IDirectDrawPaletteImpl_GetEntries(IDirectDrawPalette *iface,
DWORD Flags,
DWORD Start,
DWORD Count,
PALETTEENTRY *PalEnt)
{
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IDirectDrawPaletteImpl *This = (IDirectDrawPaletteImpl *)iface;
HRESULT hr;
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TRACE("iface %p, flags %#x, start %u, count %u, entries %p.\n",
iface, Flags, Start, Count, PalEnt);
if(!PalEnt)
return DDERR_INVALIDPARAMS;
EnterCriticalSection(&ddraw_cs);
hr = IWineD3DPalette_GetEntries(This->wineD3DPalette, Flags, Start, Count, PalEnt);
LeaveCriticalSection(&ddraw_cs);
return hr;
}
static const struct IDirectDrawPaletteVtbl ddraw_palette_vtbl =
{
/*** IUnknown ***/
IDirectDrawPaletteImpl_QueryInterface,
IDirectDrawPaletteImpl_AddRef,
IDirectDrawPaletteImpl_Release,
/*** IDirectDrawPalette ***/
IDirectDrawPaletteImpl_GetCaps,
IDirectDrawPaletteImpl_GetEntries,
IDirectDrawPaletteImpl_Initialize,
IDirectDrawPaletteImpl_SetEntries
};
HRESULT ddraw_palette_init(IDirectDrawPaletteImpl *palette,
IDirectDrawImpl *ddraw, DWORD flags, PALETTEENTRY *entries)
{
HRESULT hr;
palette->lpVtbl = &ddraw_palette_vtbl;
palette->ref = 1;
hr = IWineD3DDevice_CreatePalette(ddraw->wineD3DDevice, flags,
entries, palette, &palette->wineD3DPalette);
if (FAILED(hr))
{
WARN("Failed to create wined3d palette, hr %#x.\n", hr);
return hr;
}
palette->ifaceToRelease = (IUnknown *)ddraw;
IUnknown_AddRef(palette->ifaceToRelease);
return DD_OK;
}