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d8a9244fc4
wine/objects/palette.c
Alexandre Julliard d8a9244fc4 Added function table to GDI objects for better encapsulation. 
Removed some direct accesses to the bitmap structure.
Fixed handling of stock bitmap if selected in multiple DCs.
Some minor fixes to the DC function table.
2002-05-31 18:43:22 +00:00

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/*
* GDI palette objects
*
* Copyright 1993,1994 Alexandre Julliard
* Copyright 1996 Alex Korobka
*
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* NOTES:
* PALETTEOBJ is documented in the Dr. Dobbs Journal May 1993.
* Information in the "Undocumented Windows" is incorrect.
*/
#include <stdlib.h>
#include <string.h>
#include "winbase.h"
#include "windef.h"
#include "wingdi.h"
#include "wine/winuser16.h"
#include "gdi.h"
#include "color.h"
#include "palette.h"
#include "wine/debug.h"
#include "winerror.h"
WINE_DEFAULT_DEBUG_CHANNEL(palette);
static INT PALETTE_GetObject( HGDIOBJ handle, void *obj, INT count, LPVOID buffer );
static BOOL PALETTE_UnrealizeObject( HGDIOBJ handle, void *obj );
static BOOL PALETTE_DeleteObject( HGDIOBJ handle, void *obj );
static const struct gdi_obj_funcs palette_funcs =
{
NULL, /* pSelectObject */
PALETTE_GetObject, /* pGetObject16 */
PALETTE_GetObject, /* pGetObjectA */
PALETTE_GetObject, /* pGetObjectW */
PALETTE_UnrealizeObject, /* pUnrealizeObject */
PALETTE_DeleteObject /* pDeleteObject */
};
PALETTE_DRIVER *PALETTE_Driver = NULL;
/* Pointers to USER implementation of SelectPalette/RealizePalette */
/* they will be patched by USER on startup */
FARPROC pfnSelectPalette = NULL;
FARPROC pfnRealizePalette = NULL;
static UINT SystemPaletteUse = SYSPAL_STATIC; /* currently not considered */
static HPALETTE hPrimaryPalette = 0; /* used for WM_PALETTECHANGED */
static HPALETTE hLastRealizedPalette = 0; /* UnrealizeObject() needs it */
/***********************************************************************
* PALETTE_Init
*
* Create the system palette.
*/
HPALETTE16 PALETTE_Init(void)
{
int i;
HPALETTE16 hpalette;
LOGPALETTE * palPtr;
PALETTEOBJ* palObj;
const PALETTEENTRY* __sysPalTemplate = COLOR_GetSystemPaletteTemplate();
/* create default palette (20 system colors) */
palPtr = HeapAlloc( GetProcessHeap(), 0,
sizeof(LOGPALETTE) + (NB_RESERVED_COLORS-1)*sizeof(PALETTEENTRY));
if (!palPtr) return FALSE;
palPtr->palVersion = 0x300;
palPtr->palNumEntries = NB_RESERVED_COLORS;
for( i = 0; i < NB_RESERVED_COLORS; i ++ )
{
palPtr->palPalEntry[i].peRed = __sysPalTemplate[i].peRed;
palPtr->palPalEntry[i].peGreen = __sysPalTemplate[i].peGreen;
palPtr->palPalEntry[i].peBlue = __sysPalTemplate[i].peBlue;
palPtr->palPalEntry[i].peFlags = 0;
}
hpalette = CreatePalette16( palPtr );
HeapFree( GetProcessHeap(), 0, palPtr );
palObj = (PALETTEOBJ*) GDI_GetObjPtr( hpalette, PALETTE_MAGIC );
if (palObj)
{
if (!(palObj->mapping = HeapAlloc( GetProcessHeap(), 0, sizeof(int) * 20 )))
ERR("Can not create palette mapping -- out of memory!\n");
GDI_ReleaseObj( hpalette );
}
return hpalette;
}
/***********************************************************************
* PALETTE_ValidateFlags
*/
void PALETTE_ValidateFlags(PALETTEENTRY* lpPalE, int size)
{
int i = 0;
for( ; i<size ; i++ )
lpPalE[i].peFlags = PC_SYS_USED | (lpPalE[i].peFlags & 0x07);
}
/***********************************************************************
* CreatePalette (GDI.360)
*/
HPALETTE16 WINAPI CreatePalette16( const LOGPALETTE* palette )
{
return CreatePalette( palette );
}
/***********************************************************************
* CreatePalette [GDI32.@] Creates a logical color palette
*
* RETURNS
* Success: Handle to logical palette
* Failure: NULL
*/
HPALETTE WINAPI CreatePalette(
const LOGPALETTE* palette) /* [in] Pointer to logical color palette */
{
PALETTEOBJ * palettePtr;
HPALETTE hpalette;
int size;
if (!palette) return 0;
TRACE("entries=%i\n", palette->palNumEntries);
size = sizeof(LOGPALETTE) + (palette->palNumEntries - 1) * sizeof(PALETTEENTRY);
if (!(palettePtr = GDI_AllocObject( size + sizeof(int*) +sizeof(GDIOBJHDR),
PALETTE_MAGIC, &hpalette, &palette_funcs ))) return 0;
memcpy( &palettePtr->logpalette, palette, size );
PALETTE_ValidateFlags(palettePtr->logpalette.palPalEntry,
palettePtr->logpalette.palNumEntries);
palettePtr->mapping = NULL;
GDI_ReleaseObj( hpalette );
TRACE(" returning %04x\n", hpalette);
return hpalette;
}
/***********************************************************************
* CreateHalftonePalette [GDI.529] Creates a halftone palette
*
* RETURNS
* Success: Handle to logical halftone palette
* Failure: 0
*/
HPALETTE16 WINAPI CreateHalftonePalette16(
HDC16 hdc) /* [in] Handle to device context */
{
return CreateHalftonePalette(hdc);
}
/***********************************************************************
* CreateHalftonePalette [GDI32.@] Creates a halftone palette
*
* RETURNS
* Success: Handle to logical halftone palette
* Failure: 0
*
* FIXME: This simply creates the halftone palette dirived from runing
* tests on an windows NT machine. this is assuming a color depth
* of greater that 256 color. On a 256 color device the halftone
* palette will be differnt and this funtion will be incorrect
*/
HPALETTE WINAPI CreateHalftonePalette(
HDC hdc) /* [in] Handle to device context */
{
int i;
struct {
WORD Version;
WORD NumberOfEntries;
PALETTEENTRY aEntries[256];
} Palette;
Palette.Version = 0x300;
Palette.NumberOfEntries = 256;
GetSystemPaletteEntries(hdc, 0, 256, Palette.aEntries);
Palette.NumberOfEntries = 20;
for (i = 0; i < Palette.NumberOfEntries; i++)
{
Palette.aEntries[i].peRed=0xff;
Palette.aEntries[i].peGreen=0xff;
Palette.aEntries[i].peBlue=0xff;
Palette.aEntries[i].peFlags=0x00;
}
Palette.aEntries[0].peRed=0x00;
Palette.aEntries[0].peBlue=0x00;
Palette.aEntries[0].peGreen=0x00;
/* the first 6 */
for (i=1; i <= 6; i++)
{
Palette.aEntries[i].peRed=(i%2)?0x80:0;
Palette.aEntries[i].peGreen=(i==2)?0x80:(i==3)?0x80:(i==6)?0x80:0;
Palette.aEntries[i].peBlue=(i>3)?0x80:0;
}
for (i=7; i <= 12; i++)
{
switch(i)
{
case 7:
Palette.aEntries[i].peRed=0xc0;
Palette.aEntries[i].peBlue=0xc0;
Palette.aEntries[i].peGreen=0xc0;
break;
case 8:
Palette.aEntries[i].peRed=0xc0;
Palette.aEntries[i].peGreen=0xdc;
Palette.aEntries[i].peBlue=0xc0;
break;
case 9:
Palette.aEntries[i].peRed=0xa6;
Palette.aEntries[i].peGreen=0xca;
Palette.aEntries[i].peBlue=0xf0;
break;
case 10:
Palette.aEntries[i].peRed=0xff;
Palette.aEntries[i].peGreen=0xfb;
Palette.aEntries[i].peBlue=0xf0;
break;
case 11:
Palette.aEntries[i].peRed=0xa0;
Palette.aEntries[i].peGreen=0xa0;
Palette.aEntries[i].peBlue=0xa4;
break;
case 12:
Palette.aEntries[i].peRed=0x80;
Palette.aEntries[i].peGreen=0x80;
Palette.aEntries[i].peBlue=0x80;
}
}
for (i=13; i <= 18; i++)
{
Palette.aEntries[i].peRed=(i%2)?0xff:0;
Palette.aEntries[i].peGreen=(i==14)?0xff:(i==15)?0xff:(i==18)?0xff:0;
Palette.aEntries[i].peBlue=(i>15)?0xff:0x00;
}
return CreatePalette((LOGPALETTE *)&Palette);
}
/***********************************************************************
* GetPaletteEntries (GDI.363)
*/
UINT16 WINAPI GetPaletteEntries16( HPALETTE16 hpalette, UINT16 start,
UINT16 count, LPPALETTEENTRY entries )
{
return GetPaletteEntries( hpalette, start, count, entries );
}
/***********************************************************************
* GetPaletteEntries [GDI32.@] Retrieves palette entries
*
* RETURNS
* Success: Number of entries from logical palette
* Failure: 0
*/
UINT WINAPI GetPaletteEntries(
HPALETTE hpalette, /* [in] Handle of logical palette */
UINT start, /* [in] First entry to receive */
UINT count, /* [in] Number of entries to receive */
LPPALETTEENTRY entries) /* [out] Address of array receiving entries */
{
PALETTEOBJ * palPtr;
UINT numEntries;
TRACE("hpal = %04x, count=%i\n", hpalette, count );
palPtr = (PALETTEOBJ *) GDI_GetObjPtr( hpalette, PALETTE_MAGIC );
if (!palPtr) return 0;
/* NOTE: not documented but test show this to be the case */
if (count == 0)
{
int rc = palPtr->logpalette.palNumEntries;
GDI_ReleaseObj( hpalette );
return rc;
}
numEntries = palPtr->logpalette.palNumEntries;
if (start+count > numEntries) count = numEntries - start;
if (entries)
{
if (start >= numEntries)
{
GDI_ReleaseObj( hpalette );
return 0;
}
memcpy( entries, &palPtr->logpalette.palPalEntry[start],
count * sizeof(PALETTEENTRY) );
for( numEntries = 0; numEntries < count ; numEntries++ )
if (entries[numEntries].peFlags & 0xF0)
entries[numEntries].peFlags = 0;
}
GDI_ReleaseObj( hpalette );
return count;
}
/***********************************************************************
* SetPaletteEntries (GDI.364)
*/
UINT16 WINAPI SetPaletteEntries16( HPALETTE16 hpalette, UINT16 start,
UINT16 count, LPPALETTEENTRY entries )
{
return SetPaletteEntries( hpalette, start, count, entries );
}
/***********************************************************************
* SetPaletteEntries [GDI32.@] Sets color values for range in palette
*
* RETURNS
* Success: Number of entries that were set
* Failure: 0
*/
UINT WINAPI SetPaletteEntries(
HPALETTE hpalette, /* [in] Handle of logical palette */
UINT start, /* [in] Index of first entry to set */
UINT count, /* [in] Number of entries to set */
LPPALETTEENTRY entries) /* [in] Address of array of structures */
{
PALETTEOBJ * palPtr;
UINT numEntries;
TRACE("hpal=%04x,start=%i,count=%i\n",hpalette,start,count );
palPtr = (PALETTEOBJ *) GDI_GetObjPtr( hpalette, PALETTE_MAGIC );
if (!palPtr) return 0;
numEntries = palPtr->logpalette.palNumEntries;
if (start >= numEntries)
{
GDI_ReleaseObj( hpalette );
return 0;
}
if (start+count > numEntries) count = numEntries - start;
memcpy( &palPtr->logpalette.palPalEntry[start], entries,
count * sizeof(PALETTEENTRY) );
PALETTE_ValidateFlags(palPtr->logpalette.palPalEntry,
palPtr->logpalette.palNumEntries);
HeapFree( GetProcessHeap(), 0, palPtr->mapping );
palPtr->mapping = NULL;
GDI_ReleaseObj( hpalette );
return count;
}
/***********************************************************************
* ResizePalette (GDI.368)
*/
BOOL16 WINAPI ResizePalette16( HPALETTE16 hPal, UINT16 cEntries )
{
return ResizePalette( hPal, cEntries );
}
/***********************************************************************
* ResizePalette [GDI32.@] Resizes logical palette
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*/
BOOL WINAPI ResizePalette(
HPALETTE hPal, /* [in] Handle of logical palette */
UINT cEntries) /* [in] Number of entries in logical palette */
{
PALETTEOBJ * palPtr = (PALETTEOBJ *) GDI_GetObjPtr( hPal, PALETTE_MAGIC );
UINT cPrevEnt, prevVer;
int prevsize, size = sizeof(LOGPALETTE) + (cEntries - 1) * sizeof(PALETTEENTRY);
int* mapping = NULL;
TRACE("hpal = %04x, prev = %i, new = %i\n",
hPal, palPtr ? palPtr->logpalette.palNumEntries : -1,
cEntries );
if( !palPtr ) return FALSE;
cPrevEnt = palPtr->logpalette.palNumEntries;
prevVer = palPtr->logpalette.palVersion;
prevsize = sizeof(LOGPALETTE) + (cPrevEnt - 1) * sizeof(PALETTEENTRY) +
sizeof(int*) + sizeof(GDIOBJHDR);
size += sizeof(int*) + sizeof(GDIOBJHDR);
mapping = palPtr->mapping;
if (!(palPtr = GDI_ReallocObject( size, hPal, palPtr ))) return FALSE;
if( mapping )
{
int *newMap = (int*) HeapReAlloc(GetProcessHeap(), 0,
mapping, cEntries * sizeof(int) );
if(newMap == NULL)
{
ERR("Can not resize mapping -- out of memory!\n");
GDI_ReleaseObj( hPal );
return FALSE;
}
palPtr->mapping = newMap;
}
if( cEntries > cPrevEnt )
{
if( mapping )
memset(palPtr->mapping + cPrevEnt, 0, (cEntries - cPrevEnt)*sizeof(int));
memset( (BYTE*)palPtr + prevsize, 0, size - prevsize );
PALETTE_ValidateFlags((PALETTEENTRY*)((BYTE*)palPtr + prevsize),
cEntries - cPrevEnt );
}
palPtr->logpalette.palNumEntries = cEntries;
palPtr->logpalette.palVersion = prevVer;
GDI_ReleaseObj( hPal );
return TRUE;
}
/***********************************************************************
* AnimatePalette (GDI.367)
*/
void WINAPI AnimatePalette16( HPALETTE16 hPal, UINT16 StartIndex,
UINT16 NumEntries, const PALETTEENTRY* PaletteColors)
{
AnimatePalette( hPal, StartIndex, NumEntries, PaletteColors );
}
/***********************************************************************
* AnimatePalette [GDI32.@] Replaces entries in logical palette
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*
* FIXME
* Should use existing mapping when animating a primary palette
*/
BOOL WINAPI AnimatePalette(
HPALETTE hPal, /* [in] Handle to logical palette */
UINT StartIndex, /* [in] First entry in palette */
UINT NumEntries, /* [in] Count of entries in palette */
const PALETTEENTRY* PaletteColors) /* [in] Pointer to first replacement */
{
TRACE("%04x (%i - %i)\n", hPal, StartIndex,StartIndex+NumEntries);
if( hPal != GetStockObject(DEFAULT_PALETTE) )
{
PALETTEOBJ* palPtr = (PALETTEOBJ *)GDI_GetObjPtr(hPal, PALETTE_MAGIC);
if (!palPtr) return FALSE;
if( (StartIndex + NumEntries) <= palPtr->logpalette.palNumEntries )
{
UINT u;
for( u = 0; u < NumEntries; u++ )
palPtr->logpalette.palPalEntry[u + StartIndex] = PaletteColors[u];
if (PALETTE_Driver) PALETTE_Driver->pSetMapping(palPtr, StartIndex, NumEntries,
hPal != hPrimaryPalette );
GDI_ReleaseObj( hPal );
return TRUE;
}
GDI_ReleaseObj( hPal );
}
return FALSE;
}
/***********************************************************************
* SetSystemPaletteUse (GDI.373)
*/
UINT16 WINAPI SetSystemPaletteUse16( HDC16 hdc, UINT16 use )
{
return SetSystemPaletteUse( hdc, use );
}
/***********************************************************************
* SetSystemPaletteUse [GDI32.@]
*
* RETURNS
* Success: Previous system palette
* Failure: SYSPAL_ERROR
*/
UINT WINAPI SetSystemPaletteUse(
HDC hdc, /* [in] Handle of device context */
UINT use) /* [in] Palette-usage flag */
{
UINT old = SystemPaletteUse;
FIXME("(%04x,%04x): stub\n", hdc, use );
SystemPaletteUse = use;
return old;
}
/***********************************************************************
* GetSystemPaletteUse (GDI.374)
*/
UINT16 WINAPI GetSystemPaletteUse16( HDC16 hdc )
{
return SystemPaletteUse;
}
/***********************************************************************
* GetSystemPaletteUse [GDI32.@] Gets state of system palette
*
* RETURNS
* Current state of system palette
*/
UINT WINAPI GetSystemPaletteUse(
HDC hdc) /* [in] Handle of device context */
{
return SystemPaletteUse;
}
/***********************************************************************
* GetSystemPaletteEntries (GDI.375)
*/
UINT16 WINAPI GetSystemPaletteEntries16( HDC16 hdc, UINT16 start, UINT16 count,
LPPALETTEENTRY entries )
{
return GetSystemPaletteEntries( hdc, start, count, entries );
}
/***********************************************************************
* GetSystemPaletteEntries [GDI32.@] Gets range of palette entries
*
* RETURNS
* Success: Number of entries retrieved from palette
* Failure: 0
*/
UINT WINAPI GetSystemPaletteEntries(
HDC hdc, /* [in] Handle of device context */
UINT start, /* [in] Index of first entry to be retrieved */
UINT count, /* [in] Number of entries to be retrieved */
LPPALETTEENTRY entries) /* [out] Array receiving system-palette entries */
{
UINT i;
INT sizePalette = GetDeviceCaps( hdc, SIZEPALETTE );
TRACE("hdc=%04x,start=%i,count=%i\n", hdc,start,count);
if (!entries) return sizePalette;
if (start >= sizePalette) return 0;
if (start+count >= sizePalette) count = sizePalette - start;
for (i = 0; i < count; i++)
{
*(COLORREF*)(entries + i) = COLOR_GetSystemPaletteEntry( start + i );
TRACE("\tidx(%02x) -> RGB(%08lx)\n",
start + i, *(COLORREF*)(entries + i) );
}
return count;
}
/***********************************************************************
* GetNearestPaletteIndex (GDI.370)
*/
UINT16 WINAPI GetNearestPaletteIndex16( HPALETTE16 hpalette, COLORREF color )
{
return GetNearestPaletteIndex( hpalette, color );
}
/***********************************************************************
* GetNearestPaletteIndex [GDI32.@] Gets palette index for color
*
* NOTES
* Should index be initialized to CLR_INVALID instead of 0?
*
* RETURNS
* Success: Index of entry in logical palette
* Failure: CLR_INVALID
*/
UINT WINAPI GetNearestPaletteIndex(
HPALETTE hpalette, /* [in] Handle of logical color palette */
COLORREF color) /* [in] Color to be matched */
{
PALETTEOBJ* palObj = (PALETTEOBJ*)GDI_GetObjPtr( hpalette, PALETTE_MAGIC );
UINT index = 0;
if( palObj )
{
index = COLOR_PaletteLookupPixel(palObj->logpalette.palPalEntry,
palObj->logpalette.palNumEntries,
NULL, color, FALSE );
GDI_ReleaseObj( hpalette );
}
TRACE("(%04x,%06lx): returning %d\n", hpalette, color, index );
return index;
}
/***********************************************************************
* GetNearestColor (GDI.154)
*/
COLORREF WINAPI GetNearestColor16( HDC16 hdc, COLORREF color )
{
return GetNearestColor( hdc, color );
}
/***********************************************************************
* GetNearestColor [GDI32.@] Gets a system color to match
*
* RETURNS
* Success: Color from system palette that corresponds to given color
* Failure: CLR_INVALID
*/
COLORREF WINAPI GetNearestColor(
HDC hdc, /* [in] Handle of device context */
COLORREF color) /* [in] Color to be matched */
{
COLORREF nearest = CLR_INVALID;
DC *dc;
PALETTEOBJ *palObj;
if(!(GetDeviceCaps(hdc, RASTERCAPS) & RC_PALETTE)) {
return color;
}
if ( (dc = DC_GetDCPtr( hdc )) )
{
HPALETTE hpal = (dc->hPalette)? dc->hPalette : GetStockObject( DEFAULT_PALETTE );
palObj = GDI_GetObjPtr( hpal, PALETTE_MAGIC );
if (!palObj) {
GDI_ReleaseObj( hdc );
return nearest;
}
nearest = COLOR_LookupNearestColor( palObj->logpalette.palPalEntry,
palObj->logpalette.palNumEntries, color );
GDI_ReleaseObj( hpal );
GDI_ReleaseObj( hdc );
}
TRACE("(%06lx): returning %06lx\n", color, nearest );
return nearest;
}
/***********************************************************************
* PALETTE_GetObject
*/
static INT PALETTE_GetObject( HGDIOBJ handle, void *obj, INT count, LPVOID buffer )
{
PALETTEOBJ *palette = obj;
if (count > sizeof(WORD)) count = sizeof(WORD);
memcpy( buffer, &palette->logpalette.palNumEntries, count );
return count;
}
/***********************************************************************
* PALETTE_UnrealizeObject
*/
static BOOL PALETTE_UnrealizeObject( HGDIOBJ handle, void *obj )
{
PALETTEOBJ *palette = obj;
if (palette->mapping)
{
HeapFree( GetProcessHeap(), 0, palette->mapping );
palette->mapping = NULL;
}
if (hLastRealizedPalette == handle) hLastRealizedPalette = 0;
return TRUE;
}
/***********************************************************************
* PALETTE_DeleteObject
*/
static BOOL PALETTE_DeleteObject( HGDIOBJ handle, void *obj )
{
PALETTEOBJ *palette = obj;
HeapFree( GetProcessHeap(), 0, palette->mapping );
if (hLastRealizedPalette == handle) hLastRealizedPalette = 0;
return GDI_FreeObject( handle, obj );
}
/***********************************************************************
* GDISelectPalette (GDI.361)
*/
HPALETTE16 WINAPI GDISelectPalette16( HDC16 hdc, HPALETTE16 hpal, WORD wBkg)
{
HPALETTE16 prev;
DC *dc;
TRACE("%04x %04x\n", hdc, hpal );
if (GetObjectType(hpal) != OBJ_PAL)
{
WARN("invalid selected palette %04x\n",hpal);
return 0;
}
if (!(dc = DC_GetDCPtr( hdc ))) return 0;
prev = dc->hPalette;
dc->hPalette = hpal;
GDI_ReleaseObj( hdc );
if (!wBkg) hPrimaryPalette = hpal;
return prev;
}
/***********************************************************************
* GDIRealizePalette (GDI.362)
*/
UINT16 WINAPI GDIRealizePalette16( HDC16 hdc )
{
PALETTEOBJ* palPtr;
int realized = 0;
DC* dc = DC_GetDCPtr( hdc );
if (!dc) return 0;
TRACE("%04x...\n", hdc );
if(dc->hPalette != hLastRealizedPalette )
{
if( dc->hPalette == GetStockObject( DEFAULT_PALETTE )) {
realized = RealizeDefaultPalette16( hdc );
GDI_ReleaseObj( hdc );
return (UINT16)realized;
}
palPtr = (PALETTEOBJ *) GDI_GetObjPtr( dc->hPalette, PALETTE_MAGIC );
if (!palPtr) {
GDI_ReleaseObj( hdc );
FIXME("invalid selected palette %04x\n",dc->hPalette);
return 0;
}
if (PALETTE_Driver)
realized = PALETTE_Driver->pSetMapping(palPtr,0,palPtr->logpalette.palNumEntries,
(dc->hPalette != hPrimaryPalette) ||
(dc->hPalette == GetStockObject( DEFAULT_PALETTE )));
hLastRealizedPalette = dc->hPalette;
GDI_ReleaseObj( dc->hPalette );
}
else TRACE(" skipping (hLastRealizedPalette = %04x)\n",
hLastRealizedPalette);
GDI_ReleaseObj( hdc );
TRACE(" realized %i colors.\n", realized );
return (UINT16)realized;
}
/***********************************************************************
* RealizeDefaultPalette (GDI.365)
*/
UINT16 WINAPI RealizeDefaultPalette16( HDC16 hdc )
{
UINT16 ret = 0;
DC *dc;
PALETTEOBJ* palPtr;
TRACE("%04x\n", hdc );
if (!(dc = DC_GetDCPtr( hdc ))) return 0;
if (!(dc->flags & DC_MEMORY))
{
palPtr = (PALETTEOBJ*)GDI_GetObjPtr( GetStockObject(DEFAULT_PALETTE), PALETTE_MAGIC );
if (palPtr)
{
/* lookup is needed to account for SetSystemPaletteUse() stuff */
if (PALETTE_Driver) ret = PALETTE_Driver->pUpdateMapping(palPtr);
GDI_ReleaseObj( GetStockObject(DEFAULT_PALETTE) );
}
}
GDI_ReleaseObj( hdc );
return ret;
}
/***********************************************************************
* IsDCCurrentPalette (GDI.412)
*/
BOOL16 WINAPI IsDCCurrentPalette16(HDC16 hDC)
{
DC *dc = DC_GetDCPtr( hDC );
if (dc)
{
BOOL bRet = dc->hPalette == hPrimaryPalette;
GDI_ReleaseObj( hDC );
return bRet;
}
return FALSE;
}
/***********************************************************************
* SelectPalette [GDI32.@] Selects logical palette into DC
*
* RETURNS
* Success: Previous logical palette
* Failure: NULL
*/
HPALETTE WINAPI SelectPalette(
HDC hDC, /* [in] Handle of device context */
HPALETTE hPal, /* [in] Handle of logical color palette */
BOOL bForceBackground) /* [in] Foreground/background mode */
{
return pfnSelectPalette( hDC, hPal, bForceBackground );
}
/***********************************************************************
* RealizePalette [GDI32.@] Maps palette entries to system palette
*
* RETURNS
* Success: Number of entries in logical palette
* Failure: GDI_ERROR
*/
UINT WINAPI RealizePalette(
HDC hDC) /* [in] Handle of device context */
{
return pfnRealizePalette( hDC );
}
typedef HWND (WINAPI *WindowFromDC_funcptr)( HDC );
typedef BOOL (WINAPI *RedrawWindow_funcptr)( HWND, const RECT *, HRGN, UINT );
/**********************************************************************
* UpdateColors [GDI32.@] Remaps current colors to logical palette
*
* RETURNS
* Success: TRUE
* Failure: FALSE
*/
BOOL WINAPI UpdateColors(
HDC hDC) /* [in] Handle of device context */
{
HMODULE mod;
int size = GetDeviceCaps( hDC, SIZEPALETTE );
if (!size) return 0;
mod = GetModuleHandleA("user32.dll");
if (mod)
{
WindowFromDC_funcptr pWindowFromDC = (WindowFromDC_funcptr)GetProcAddress(mod,"WindowFromDC");
if (pWindowFromDC)
{
HWND hWnd = pWindowFromDC( hDC );
/* Docs say that we have to remap current drawable pixel by pixel
* but it would take forever given the speed of XGet/PutPixel.
*/
if (hWnd && size)
{
RedrawWindow_funcptr pRedrawWindow = GetProcAddress( mod, "RedrawWindow" );
if (pRedrawWindow) pRedrawWindow( hWnd, NULL, 0, RDW_INVALIDATE );
}
}
}
return 0x666;
}
/**********************************************************************
* UpdateColors (GDI.366)
*/
INT16 WINAPI UpdateColors16( HDC16 hDC )
{
UpdateColors( hDC );
return TRUE;
}
/*********************************************************************
* SetMagicColors (GDI.606)
*/
VOID WINAPI SetMagicColors16(HDC16 hDC, COLORREF color, UINT16 index)
{
FIXME("(hDC %04x, color %04x, index %04x): stub\n", hDC, (int)color, index);
}
/**********************************************************************
* GetICMProfileA [GDI32.@]
*
* Returns the filename of the specified device context's color
* management profile, even if color management is not enabled
* for that DC.
*
* RETURNS
* TRUE if name copied succesfully OR lpszFilename is NULL
* FALSE if the buffer length pointed to by lpcbName is too small
*
* NOTE
* The buffer length pointed to by lpcbName is ALWAYS updated to
* the length required regardless of other actions this function
* may take.
*
* FIXME
* How does Windows assign these? Some registry key?
*/
#define WINEICM "winefake.icm" /* easy-to-identify fake filename */
/*********************************************************************/
BOOL WINAPI GetICMProfileA(HDC hDC, LPDWORD lpcbName, LPSTR lpszFilename)
{
DWORD callerLen;
FIXME("(%04x, %p, %p): partial stub\n", hDC, lpcbName, lpszFilename);
callerLen = *lpcbName;
/* all 3 behaviors require the required buffer size to be set */
*lpcbName = strlen(WINEICM);
/* behavior 1: if lpszFilename is NULL, return size of string and no error */
if ((DWORD)lpszFilename == (DWORD)0x00000000)
return TRUE;
/* behavior 2: if buffer size too small, return size of string and error */
if (callerLen < strlen(WINEICM))
{
SetLastError(ERROR_INSUFFICIENT_BUFFER);
return FALSE;
}
/* behavior 3: if buffer size OK and pointer not NULL, copy and return size */
strcpy(lpszFilename, WINEICM);
return TRUE;
}
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