Sweden-Number/dlls/ddraw/dpalette/main.c

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/* DirectDraw - IDirectPalette base interface
*
* Copyright 1997-2000 Marcus Meissner
* Copyright 2000 TransGaming Technologies Inc.
*/
#include "config.h"
#include "winerror.h"
#include "debugtools.h"
#include <assert.h>
#include <string.h>
#include "ddraw_private.h"
#include "dpalette/main.h"
#include "ddraw/main.h"
DEFAULT_DEBUG_CHANNEL(ddraw);
#define SIZE_BITS (DDPCAPS_1BIT | DDPCAPS_2BIT | DDPCAPS_4BIT | DDPCAPS_8BIT)
/* For unsigned x. 0 is not a power of 2. */
#define IS_POW_2(x) (((x) & ((x) - 1)) == 0)
static ICOM_VTABLE(IDirectDrawPalette) DDRAW_Main_Palette_VTable;
/******************************************************************************
* IDirectDrawPalette
*/
HRESULT Main_DirectDrawPalette_Construct(IDirectDrawPaletteImpl* This,
IDirectDrawImpl* pDD, DWORD dwFlags)
{
if (!IS_POW_2(dwFlags & SIZE_BITS)) return DDERR_INVALIDPARAMS;
if (dwFlags & DDPCAPS_8BITENTRIES)
WARN("creating palette with 8 bit entries\n");
This->flags = dwFlags;
This->palNumEntries = Main_DirectDrawPalette_Size(dwFlags);
This->ref = 1;
This->final_release = Main_DirectDrawPalette_final_release;
ICOM_INIT_INTERFACE(This, IDirectDrawPalette, DDRAW_Main_Palette_VTable);
/* we could defer hpal creation until we need it,
* but does anyone have a case where it would be useful? */
This->hpal = CreatePalette((const LOGPALETTE*)&(This->palVersion));
Main_DirectDraw_AddPalette(pDD, This);
return DD_OK;
}
HRESULT
Main_DirectDrawPalette_Create(IDirectDrawImpl* pDD, DWORD dwFlags,
LPDIRECTDRAWPALETTE* ppPalette,
LPUNKNOWN pUnkOuter)
{
IDirectDrawPaletteImpl* This;
HRESULT hr;
if (pUnkOuter != NULL)
return CLASS_E_NOAGGREGATION; /* unchecked */
This = HeapAlloc(GetProcessHeap(), HEAP_ZERO_MEMORY, sizeof(*This));
if (This == NULL) return E_OUTOFMEMORY;
hr = Main_DirectDrawPalette_Construct(This, pDD, dwFlags);
if (FAILED(hr))
HeapFree(GetProcessHeap(), 0, This);
else
*ppPalette = ICOM_INTERFACE(This, IDirectDrawPalette);
return hr;
}
DWORD Main_DirectDrawPalette_Size(DWORD dwFlags)
{
switch (dwFlags & SIZE_BITS)
{
case DDPCAPS_1BIT: return 2;
case DDPCAPS_2BIT: return 4;
case DDPCAPS_4BIT: return 16;
case DDPCAPS_8BIT: return 256;
default: assert(0); return 256;
}
}
HRESULT WINAPI
Main_DirectDrawPalette_GetEntries(LPDIRECTDRAWPALETTE iface, DWORD dwFlags,
DWORD dwStart, DWORD dwCount,
LPPALETTEENTRY palent)
{
ICOM_THIS(IDirectDrawPaletteImpl,iface);
TRACE("(%p)->GetEntries(%08lx,%ld,%ld,%p)\n",This,dwFlags,dwStart,dwCount,
palent);
if (dwFlags != 0) return DDERR_INVALIDPARAMS; /* unchecked */
if (dwStart + dwCount > Main_DirectDrawPalette_Size(This->flags))
return DDERR_INVALIDPARAMS;
if (This->flags & DDPCAPS_8BITENTRIES)
{
int i;
LPBYTE entry = (LPBYTE)palent;
for (i=dwStart; i < dwCount+dwStart; i++)
*entry++ = This->palents[i].peRed;
}
else
memcpy(palent, This->palents+dwStart, dwCount * sizeof(PALETTEENTRY));
return DD_OK;
}
HRESULT WINAPI
Main_DirectDrawPalette_SetEntries(LPDIRECTDRAWPALETTE iface, DWORD dwFlags,
DWORD dwStart, DWORD dwCount,
LPPALETTEENTRY palent)
{
ICOM_THIS(IDirectDrawPaletteImpl,iface);
TRACE("(%p)->SetEntries(%08lx,%ld,%ld,%p)\n",This,dwFlags,dwStart,dwCount,
palent);
if (This->flags & DDPCAPS_8BITENTRIES)
{
int i;
const BYTE* entry = (const BYTE*)palent;
for (i=dwStart; i < dwCount+dwStart; i++)
This->palents[i].peRed = *entry++;
}
else {
memcpy(This->palents+dwStart, palent, dwCount * sizeof(PALETTEENTRY));
if (This->hpal)
SetPaletteEntries(This->hpal, dwStart, dwCount, This->palents+dwStart);
if (This->flags & DDPCAPS_PRIMARYSURFACE) {
/* update physical palette */
LPDIRECTDRAWSURFACE7 psurf = NULL;
IDirectDraw7_GetGDISurface(ICOM_INTERFACE(This->ddraw_owner,IDirectDraw7), &psurf);
if (psurf) {
IDirectDrawSurfaceImpl *surf = ICOM_OBJECT(IDirectDrawSurfaceImpl,
IDirectDrawSurface7, psurf);
surf->update_palette(surf, This, dwStart, dwCount, palent);
IDirectDrawSurface7_Release(psurf);
}
else ERR("can't find GDI surface!!\n");
}
}
#if 0
/* Now, if we are in 'depth conversion mode', update the screen palette */
/* FIXME: we need to update the image or we won't get palette fading. */
if (This->ddraw->d->palette_convert != NULL)
This->ddraw->d->palette_convert(palent,This->screen_palents,start,count);
#endif
return DD_OK;
}
void Main_DirectDrawPalette_final_release(IDirectDrawPaletteImpl* This)
{
Main_DirectDraw_RemovePalette(This->ddraw_owner, This);
if (This->hpal) DeleteObject(This->hpal);
}
static void Main_DirectDrawPalette_Destroy(IDirectDrawPaletteImpl* This)
{
This->final_release(This);
if (This->private != This+1)
HeapFree(GetProcessHeap(), 0, This->private);
HeapFree(GetProcessHeap(),0,This);
}
void Main_DirectDrawPalette_ForceDestroy(IDirectDrawPaletteImpl* This)
{
WARN("deleting palette %p with refcnt %lu\n", This, This->ref);
Main_DirectDrawPalette_Destroy(This);
}
ULONG WINAPI
Main_DirectDrawPalette_Release(LPDIRECTDRAWPALETTE iface)
{
ICOM_THIS(IDirectDrawPaletteImpl,iface);
TRACE("(%p)->() decrementing from %lu.\n", This, This->ref );
if (!--This->ref)
{
Main_DirectDrawPalette_Destroy(This);
return 0;
}
return This->ref;
}
ULONG WINAPI Main_DirectDrawPalette_AddRef(LPDIRECTDRAWPALETTE iface) {
ICOM_THIS(IDirectDrawPaletteImpl,iface);
TRACE("(%p)->() incrementing from %lu.\n", This, This->ref );
return ++This->ref;
}
HRESULT WINAPI
Main_DirectDrawPalette_Initialize(LPDIRECTDRAWPALETTE iface,
LPDIRECTDRAW ddraw, DWORD dwFlags,
LPPALETTEENTRY palent)
{
ICOM_THIS(IDirectDrawPaletteImpl,iface);
TRACE("(%p)->(%p,%ld,%p)\n", This, ddraw, dwFlags, palent);
return DDERR_ALREADYINITIALIZED;
}
HRESULT WINAPI
Main_DirectDrawPalette_GetCaps(LPDIRECTDRAWPALETTE iface, LPDWORD lpdwCaps)
{
ICOM_THIS(IDirectDrawPaletteImpl,iface);
TRACE("(%p)->(%p)\n",This,lpdwCaps);
*lpdwCaps = This->flags;
return DD_OK;
}
HRESULT WINAPI
Main_DirectDrawPalette_QueryInterface(LPDIRECTDRAWPALETTE iface,
REFIID refiid, LPVOID *obj)
{
ICOM_THIS(IDirectDrawPaletteImpl,iface);
TRACE("(%p)->(%s,%p)\n",This,debugstr_guid(refiid),obj);
if (IsEqualGUID(refiid, &IID_IUnknown)
|| IsEqualGUID(refiid, &IID_IDirectDrawPalette))
{
*obj = iface;
IDirectDrawPalette_AddRef(iface);
return S_OK;
}
else
{
return E_NOINTERFACE;
}
}
static ICOM_VTABLE(IDirectDrawPalette) DDRAW_Main_Palette_VTable =
{
ICOM_MSVTABLE_COMPAT_DummyRTTIVALUE
Main_DirectDrawPalette_QueryInterface,
Main_DirectDrawPalette_AddRef,
Main_DirectDrawPalette_Release,
Main_DirectDrawPalette_GetCaps,
Main_DirectDrawPalette_GetEntries,
Main_DirectDrawPalette_Initialize,
Main_DirectDrawPalette_SetEntries
};