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 ddraw_palette_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 ddraw_palette_AddRef(IDirectDrawPalette *iface)
{
struct ddraw_palette *This = impl_from_IDirectDrawPalette(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 ddraw_palette_Release(IDirectDrawPalette *iface)
{
struct ddraw_palette *palette = impl_from_IDirectDrawPalette(iface);
ULONG ref = InterlockedDecrement(&palette->ref);
TRACE("%p decreasing refcount to %u.\n", palette, ref);
if (ref == 0)
{
wined3d_mutex_lock();
wined3d_palette_decref(palette->wined3d_palette);
if ((palette->flags & DDPCAPS_PRIMARYSURFACE) && palette->ddraw->primary)
palette->ddraw->primary->palette = NULL;
if (palette->ifaceToRelease)
IUnknown_Release(palette->ifaceToRelease);
wined3d_mutex_unlock();
heap_free(palette);
}
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 ddraw_palette_Initialize(IDirectDrawPalette *iface,
IDirectDraw *ddraw, DWORD flags, PALETTEENTRY *entries)
{
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TRACE("iface %p, ddraw %p, flags %#x, entries %p.\n",
iface, ddraw, flags, entries);
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return DDERR_ALREADYINITIALIZED;
}
static HRESULT WINAPI ddraw_palette_GetCaps(IDirectDrawPalette *iface, DWORD *caps)
{
struct ddraw_palette *palette = impl_from_IDirectDrawPalette(iface);
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TRACE("iface %p, caps %p.\n", iface, caps);
wined3d_mutex_lock();
*caps = palette->flags;
wined3d_mutex_unlock();
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return D3D_OK;
}
/*****************************************************************************
* 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
*
*****************************************************************************/
static HRESULT WINAPI ddraw_palette_SetEntries(IDirectDrawPalette *iface,
DWORD flags, DWORD start, DWORD count, PALETTEENTRY *entries)
{
struct ddraw_palette *palette = impl_from_IDirectDrawPalette(iface);
HRESULT hr;
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TRACE("iface %p, flags %#x, start %u, count %u, entries %p.\n",
iface, flags, start, count, entries);
if (!entries)
return DDERR_INVALIDPARAMS;
wined3d_mutex_lock();
hr = wined3d_palette_set_entries(palette->wined3d_palette, flags, start, count, entries);
if (SUCCEEDED(hr) && palette->flags & DDPCAPS_PRIMARYSURFACE)
ddraw_surface_update_frontbuffer(palette->ddraw->primary, NULL, FALSE);
wined3d_mutex_unlock();
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
*
*****************************************************************************/
static HRESULT WINAPI ddraw_palette_GetEntries(IDirectDrawPalette *iface,
DWORD flags, DWORD start, DWORD count, PALETTEENTRY *entries)
{
struct ddraw_palette *palette = impl_from_IDirectDrawPalette(iface);
HRESULT hr;
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TRACE("iface %p, flags %#x, start %u, count %u, entries %p.\n",
iface, flags, start, count, entries);
if (!entries)
return DDERR_INVALIDPARAMS;
wined3d_mutex_lock();
hr = wined3d_palette_get_entries(palette->wined3d_palette, flags, start, count, entries);
wined3d_mutex_unlock();
return hr;
}
static const struct IDirectDrawPaletteVtbl ddraw_palette_vtbl =
{
/*** IUnknown ***/
ddraw_palette_QueryInterface,
ddraw_palette_AddRef,
ddraw_palette_Release,
/*** IDirectDrawPalette ***/
ddraw_palette_GetCaps,
ddraw_palette_GetEntries,
ddraw_palette_Initialize,
ddraw_palette_SetEntries
};
struct ddraw_palette *unsafe_impl_from_IDirectDrawPalette(IDirectDrawPalette *iface)
{
if (!iface) return NULL;
assert(iface->lpVtbl == &ddraw_palette_vtbl);
return CONTAINING_RECORD(iface, struct ddraw_palette, IDirectDrawPalette_iface);
}
static unsigned int palette_size(DWORD flags)
{
switch (flags & (DDPCAPS_1BIT | DDPCAPS_2BIT | DDPCAPS_4BIT | DDPCAPS_8BIT))
{
case DDPCAPS_1BIT:
return 2;
case DDPCAPS_2BIT:
return 4;
case DDPCAPS_4BIT:
return 16;
case DDPCAPS_8BIT:
return 256;
default:
return ~0u;
}
}
HRESULT ddraw_palette_init(struct ddraw_palette *palette,
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struct ddraw *ddraw, DWORD flags, PALETTEENTRY *entries)
{
unsigned int entry_count;
DWORD wined3d_flags = 0;
HRESULT hr;
if ((entry_count = palette_size(flags)) == ~0u)
{
WARN("Invalid flags %#x.\n", flags);
return DDERR_INVALIDPARAMS;
}
if (flags & DDPCAPS_8BITENTRIES)
wined3d_flags |= WINED3D_PALETTE_8BIT_ENTRIES;
if (flags & DDPCAPS_ALLOW256)
wined3d_flags |= WINED3D_PALETTE_ALLOW_256;
if (flags & DDPCAPS_ALPHA)
wined3d_flags |= WINED3D_PALETTE_ALPHA;
palette->IDirectDrawPalette_iface.lpVtbl = &ddraw_palette_vtbl;
palette->ref = 1;
palette->flags = flags;
if (FAILED(hr = wined3d_palette_create(ddraw->wined3d_device,
wined3d_flags, entry_count, entries, &palette->wined3d_palette)))
{
WARN("Failed to create wined3d palette, hr %#x.\n", hr);
return hr;
}
palette->ddraw = ddraw;
palette->ifaceToRelease = (IUnknown *)&ddraw->IDirectDraw7_iface;
IUnknown_AddRef(palette->ifaceToRelease);
return DD_OK;
}