| /* |
| * 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA |
| * |
| * NOTES: |
| * PALETTEOBJ is documented in the Dr. Dobbs Journal May 1993. |
| * Information in the "Undocumented Windows" is incorrect. |
| */ |
| |
| #include <stdarg.h> |
| #include <stdlib.h> |
| #include <string.h> |
| |
| #include "windef.h" |
| #include "winbase.h" |
| #include "winerror.h" |
| #include "wingdi.h" |
| #include "winuser.h" |
| |
| #include "gdi_private.h" |
| #include "wine/debug.h" |
| |
| WINE_DEFAULT_DEBUG_CHANNEL(palette); |
| |
| typedef BOOL (*unrealize_function)(HPALETTE); |
| |
| typedef struct tagPALETTEOBJ |
| { |
| GDIOBJHDR header; |
| unrealize_function unrealize; |
| WORD version; /* palette version */ |
| WORD count; /* count of palette entries */ |
| PALETTEENTRY *entries; |
| } PALETTEOBJ; |
| |
| static INT PALETTE_GetObject( HGDIOBJ handle, INT count, LPVOID buffer ); |
| static BOOL PALETTE_UnrealizeObject( HGDIOBJ handle ); |
| static BOOL PALETTE_DeleteObject( HGDIOBJ handle ); |
| |
| static const struct gdi_obj_funcs palette_funcs = |
| { |
| NULL, /* pSelectObject */ |
| PALETTE_GetObject, /* pGetObjectA */ |
| PALETTE_GetObject, /* pGetObjectW */ |
| PALETTE_UnrealizeObject, /* pUnrealizeObject */ |
| PALETTE_DeleteObject /* pDeleteObject */ |
| }; |
| |
| /* Pointers to USER implementation of SelectPalette/RealizePalette */ |
| /* they will be patched by USER on startup */ |
| HPALETTE (WINAPI *pfnSelectPalette)(HDC hdc, HPALETTE hpal, WORD bkgnd ) = GDISelectPalette; |
| UINT (WINAPI *pfnRealizePalette)(HDC hdc) = GDIRealizePalette; |
| |
| static UINT SystemPaletteUse = SYSPAL_STATIC; /* currently not considered */ |
| |
| static HPALETTE hPrimaryPalette = 0; /* used for WM_PALETTECHANGED */ |
| static HPALETTE hLastRealizedPalette = 0; /* UnrealizeObject() needs it */ |
| |
| #define NB_RESERVED_COLORS 20 /* number of fixed colors in system palette */ |
| |
| static const PALETTEENTRY sys_pal_template[NB_RESERVED_COLORS] = |
| { |
| /* first 10 entries in the system palette */ |
| /* red green blue flags */ |
| { 0x00, 0x00, 0x00, 0 }, |
| { 0x80, 0x00, 0x00, 0 }, |
| { 0x00, 0x80, 0x00, 0 }, |
| { 0x80, 0x80, 0x00, 0 }, |
| { 0x00, 0x00, 0x80, 0 }, |
| { 0x80, 0x00, 0x80, 0 }, |
| { 0x00, 0x80, 0x80, 0 }, |
| { 0xc0, 0xc0, 0xc0, 0 }, |
| { 0xc0, 0xdc, 0xc0, 0 }, |
| { 0xa6, 0xca, 0xf0, 0 }, |
| |
| /* ... c_min/2 dynamic colorcells */ |
| |
| /* ... gap (for sparse palettes) */ |
| |
| /* ... c_min/2 dynamic colorcells */ |
| |
| { 0xff, 0xfb, 0xf0, 0 }, |
| { 0xa0, 0xa0, 0xa4, 0 }, |
| { 0x80, 0x80, 0x80, 0 }, |
| { 0xff, 0x00, 0x00, 0 }, |
| { 0x00, 0xff, 0x00, 0 }, |
| { 0xff, 0xff, 0x00, 0 }, |
| { 0x00, 0x00, 0xff, 0 }, |
| { 0xff, 0x00, 0xff, 0 }, |
| { 0x00, 0xff, 0xff, 0 }, |
| { 0xff, 0xff, 0xff, 0 } /* last 10 */ |
| }; |
| |
| /*********************************************************************** |
| * PALETTE_Init |
| * |
| * Create the system palette. |
| */ |
| HPALETTE PALETTE_Init(void) |
| { |
| HPALETTE hpalette; |
| LOGPALETTE * palPtr; |
| |
| /* 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; |
| memcpy( palPtr->palPalEntry, sys_pal_template, sizeof(sys_pal_template) ); |
| hpalette = CreatePalette( palPtr ); |
| HeapFree( GetProcessHeap(), 0, palPtr ); |
| return hpalette; |
| } |
| |
| |
| /*********************************************************************** |
| * 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 = HeapAlloc( GetProcessHeap(), 0, sizeof(*palettePtr) ))) return 0; |
| palettePtr->unrealize = NULL; |
| palettePtr->version = palette->palVersion; |
| palettePtr->count = palette->palNumEntries; |
| size = palettePtr->count * sizeof(*palettePtr->entries); |
| if (!(palettePtr->entries = HeapAlloc( GetProcessHeap(), 0, size ))) |
| { |
| HeapFree( GetProcessHeap(), 0, palettePtr ); |
| return 0; |
| } |
| memcpy( palettePtr->entries, palette->palPalEntry, size ); |
| if (!(hpalette = alloc_gdi_handle( &palettePtr->header, OBJ_PAL, &palette_funcs ))) |
| { |
| HeapFree( GetProcessHeap(), 0, palettePtr->entries ); |
| HeapFree( GetProcessHeap(), 0, palettePtr ); |
| } |
| TRACE(" returning %p\n", hpalette); |
| return hpalette; |
| } |
| |
| |
| /*********************************************************************** |
| * CreateHalftonePalette [GDI32.@] |
| * |
| * Creates a halftone palette. |
| * |
| * RETURNS |
| * Success: Handle to logical halftone palette |
| * Failure: 0 |
| * |
| * FIXME: This simply creates the halftone palette derived from running |
| * tests on a windows NT machine. This is assuming a color depth |
| * of greater that 256 color. On a 256 color device the halftone |
| * palette will be different and this function 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 [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 = %p, count=%i\n", hpalette, count ); |
| |
| palPtr = GDI_GetObjPtr( hpalette, OBJ_PAL ); |
| if (!palPtr) return 0; |
| |
| /* NOTE: not documented but test show this to be the case */ |
| if (count == 0) |
| { |
| count = palPtr->count; |
| } |
| else |
| { |
| numEntries = palPtr->count; |
| if (start+count > numEntries) count = numEntries - start; |
| if (entries) |
| { |
| if (start >= numEntries) count = 0; |
| else memcpy( entries, &palPtr->entries[start], count * sizeof(PALETTEENTRY) ); |
| } |
| } |
| |
| GDI_ReleaseObj( hpalette ); |
| return count; |
| } |
| |
| |
| /*********************************************************************** |
| * 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 */ |
| const PALETTEENTRY *entries) /* [in] Address of array of structures */ |
| { |
| PALETTEOBJ * palPtr; |
| UINT numEntries; |
| |
| TRACE("hpal=%p,start=%i,count=%i\n",hpalette,start,count ); |
| |
| if (hpalette == GetStockObject(DEFAULT_PALETTE)) return 0; |
| palPtr = GDI_GetObjPtr( hpalette, OBJ_PAL ); |
| if (!palPtr) return 0; |
| |
| numEntries = palPtr->count; |
| if (start >= numEntries) |
| { |
| GDI_ReleaseObj( hpalette ); |
| return 0; |
| } |
| if (start+count > numEntries) count = numEntries - start; |
| memcpy( &palPtr->entries[start], entries, count * sizeof(PALETTEENTRY) ); |
| GDI_ReleaseObj( hpalette ); |
| UnrealizeObject( hpalette ); |
| return count; |
| } |
| |
| |
| /*********************************************************************** |
| * 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 = GDI_GetObjPtr( hPal, OBJ_PAL ); |
| PALETTEENTRY *entries; |
| |
| if( !palPtr ) return FALSE; |
| TRACE("hpal = %p, prev = %i, new = %i\n", hPal, palPtr->count, cEntries ); |
| |
| if (!(entries = HeapReAlloc( GetProcessHeap(), HEAP_ZERO_MEMORY, |
| palPtr->entries, cEntries * sizeof(*palPtr->entries) ))) |
| { |
| GDI_ReleaseObj( hPal ); |
| return FALSE; |
| } |
| palPtr->entries = entries; |
| palPtr->count = cEntries; |
| |
| GDI_ReleaseObj( hPal ); |
| PALETTE_UnrealizeObject( hPal ); |
| return TRUE; |
| } |
| |
| |
| /*********************************************************************** |
| * 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("%p (%i - %i)\n", hPal, StartIndex,StartIndex+NumEntries); |
| |
| if( hPal != GetStockObject(DEFAULT_PALETTE) ) |
| { |
| PALETTEOBJ * palPtr; |
| UINT pal_entries; |
| const PALETTEENTRY *pptr = PaletteColors; |
| |
| palPtr = GDI_GetObjPtr( hPal, OBJ_PAL ); |
| if (!palPtr) return 0; |
| |
| pal_entries = palPtr->count; |
| if (StartIndex >= pal_entries) |
| { |
| GDI_ReleaseObj( hPal ); |
| return 0; |
| } |
| if (StartIndex+NumEntries > pal_entries) NumEntries = pal_entries - StartIndex; |
| |
| for (NumEntries += StartIndex; StartIndex < NumEntries; StartIndex++, pptr++) { |
| /* According to MSDN, only animate PC_RESERVED colours */ |
| if (palPtr->entries[StartIndex].peFlags & PC_RESERVED) { |
| TRACE("Animating colour (%d,%d,%d) to (%d,%d,%d)\n", |
| palPtr->entries[StartIndex].peRed, |
| palPtr->entries[StartIndex].peGreen, |
| palPtr->entries[StartIndex].peBlue, |
| pptr->peRed, pptr->peGreen, pptr->peBlue); |
| palPtr->entries[StartIndex] = *pptr; |
| } else { |
| TRACE("Not animating entry %d -- not PC_RESERVED\n", StartIndex); |
| } |
| } |
| GDI_ReleaseObj( hPal ); |
| /* FIXME: check for palette selected in active window */ |
| } |
| return TRUE; |
| } |
| |
| |
| /*********************************************************************** |
| * SetSystemPaletteUse [GDI32.@] |
| * |
| * Specify whether the system palette contains 2 or 20 static colors. |
| * |
| * 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; |
| |
| /* Device doesn't support colour palettes */ |
| if (!(GetDeviceCaps(hdc, RASTERCAPS) & RC_PALETTE)) { |
| return SYSPAL_ERROR; |
| } |
| |
| switch (use) { |
| case SYSPAL_NOSTATIC: |
| case SYSPAL_NOSTATIC256: /* WINVER >= 0x0500 */ |
| case SYSPAL_STATIC: |
| SystemPaletteUse = use; |
| return old; |
| default: |
| return SYSPAL_ERROR; |
| } |
| } |
| |
| |
| /*********************************************************************** |
| * 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 [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 ret = 0; |
| DC *dc; |
| |
| TRACE("hdc=%p,start=%i,count=%i\n", hdc,start,count); |
| |
| if ((dc = get_dc_ptr( hdc ))) |
| { |
| PHYSDEV physdev = GET_DC_PHYSDEV( dc, pGetSystemPaletteEntries ); |
| ret = physdev->funcs->pGetSystemPaletteEntries( physdev, start, count, entries ); |
| release_dc_ptr( dc ); |
| } |
| return ret; |
| } |
| |
| |
| /*********************************************************************** |
| * 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 = GDI_GetObjPtr( hpalette, OBJ_PAL ); |
| UINT index = 0; |
| |
| if( palObj ) |
| { |
| int i, diff = 0x7fffffff; |
| int r,g,b; |
| PALETTEENTRY* entry = palObj->entries; |
| |
| for( i = 0; i < palObj->count && diff ; i++, entry++) |
| { |
| r = entry->peRed - GetRValue(color); |
| g = entry->peGreen - GetGValue(color); |
| b = entry->peBlue - GetBValue(color); |
| |
| r = r*r + g*g + b*b; |
| |
| if( r < diff ) { index = i; diff = r; } |
| } |
| GDI_ReleaseObj( hpalette ); |
| } |
| TRACE("(%p,%06x): returning %d\n", hpalette, color, index ); |
| return index; |
| } |
| |
| |
| /* null driver fallback implementation for GetNearestColor */ |
| COLORREF nulldrv_GetNearestColor( PHYSDEV dev, COLORREF color ) |
| { |
| unsigned char spec_type; |
| |
| if (!(GetDeviceCaps( dev->hdc, RASTERCAPS ) & RC_PALETTE)) return color; |
| |
| spec_type = color >> 24; |
| if (spec_type == 1 || spec_type == 2) |
| { |
| /* we need logical palette for PALETTERGB and PALETTEINDEX colorrefs */ |
| UINT index; |
| PALETTEENTRY entry; |
| HPALETTE hpal = GetCurrentObject( dev->hdc, OBJ_PAL ); |
| |
| if (!hpal) hpal = GetStockObject( DEFAULT_PALETTE ); |
| if (spec_type == 2) /* PALETTERGB */ |
| index = GetNearestPaletteIndex( hpal, color ); |
| else /* PALETTEINDEX */ |
| index = LOWORD(color); |
| |
| if (!GetPaletteEntries( hpal, index, 1, &entry )) |
| { |
| WARN("RGB(%x) : idx %d is out of bounds, assuming NULL\n", color, index ); |
| if (!GetPaletteEntries( hpal, 0, 1, &entry )) return CLR_INVALID; |
| } |
| color = RGB( entry.peRed, entry.peGreen, entry.peBlue ); |
| } |
| return color & 0x00ffffff; |
| } |
| |
| |
| /*********************************************************************** |
| * 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; |
| |
| if ((dc = get_dc_ptr( hdc ))) |
| { |
| PHYSDEV physdev = GET_DC_PHYSDEV( dc, pGetNearestColor ); |
| nearest = physdev->funcs->pGetNearestColor( physdev, color ); |
| release_dc_ptr( dc ); |
| } |
| return nearest; |
| } |
| |
| |
| /*********************************************************************** |
| * PALETTE_GetObject |
| */ |
| static INT PALETTE_GetObject( HGDIOBJ handle, INT count, LPVOID buffer ) |
| { |
| PALETTEOBJ *palette = GDI_GetObjPtr( handle, OBJ_PAL ); |
| |
| if (!palette) return 0; |
| |
| if (buffer) |
| { |
| if (count > sizeof(WORD)) count = sizeof(WORD); |
| memcpy( buffer, &palette->count, count ); |
| } |
| else count = sizeof(WORD); |
| GDI_ReleaseObj( handle ); |
| return count; |
| } |
| |
| |
| /*********************************************************************** |
| * PALETTE_UnrealizeObject |
| */ |
| static BOOL PALETTE_UnrealizeObject( HGDIOBJ handle ) |
| { |
| PALETTEOBJ *palette = GDI_GetObjPtr( handle, OBJ_PAL ); |
| |
| if (palette) |
| { |
| unrealize_function unrealize = palette->unrealize; |
| palette->unrealize = NULL; |
| GDI_ReleaseObj( handle ); |
| if (unrealize) unrealize( handle ); |
| } |
| |
| if (InterlockedCompareExchangePointer( (void **)&hLastRealizedPalette, 0, handle ) == handle) |
| TRACE("unrealizing palette %p\n", handle); |
| |
| return TRUE; |
| } |
| |
| |
| /*********************************************************************** |
| * PALETTE_DeleteObject |
| */ |
| static BOOL PALETTE_DeleteObject( HGDIOBJ handle ) |
| { |
| PALETTEOBJ *obj; |
| |
| PALETTE_UnrealizeObject( handle ); |
| if (!(obj = free_gdi_handle( handle ))) return FALSE; |
| HeapFree( GetProcessHeap(), 0, obj->entries ); |
| return HeapFree( GetProcessHeap(), 0, obj ); |
| } |
| |
| |
| /*********************************************************************** |
| * GDISelectPalette (Not a Windows API) |
| */ |
| HPALETTE WINAPI GDISelectPalette( HDC hdc, HPALETTE hpal, WORD wBkg) |
| { |
| HPALETTE ret = 0; |
| DC *dc; |
| |
| TRACE("%p %p\n", hdc, hpal ); |
| |
| if (GetObjectType(hpal) != OBJ_PAL) |
| { |
| WARN("invalid selected palette %p\n",hpal); |
| return 0; |
| } |
| if ((dc = get_dc_ptr( hdc ))) |
| { |
| PHYSDEV physdev = GET_DC_PHYSDEV( dc, pSelectPalette ); |
| ret = dc->hPalette; |
| if (physdev->funcs->pSelectPalette( physdev, hpal, FALSE )) |
| { |
| dc->hPalette = hpal; |
| if (!wBkg) hPrimaryPalette = hpal; |
| } |
| else ret = 0; |
| release_dc_ptr( dc ); |
| } |
| return ret; |
| } |
| |
| |
| /*********************************************************************** |
| * GDIRealizePalette (Not a Windows API) |
| */ |
| UINT WINAPI GDIRealizePalette( HDC hdc ) |
| { |
| UINT realized = 0; |
| DC* dc = get_dc_ptr( hdc ); |
| |
| if (!dc) return 0; |
| |
| TRACE("%p...\n", hdc ); |
| |
| if( dc->hPalette == GetStockObject( DEFAULT_PALETTE )) |
| { |
| PHYSDEV physdev = GET_DC_PHYSDEV( dc, pRealizeDefaultPalette ); |
| realized = physdev->funcs->pRealizeDefaultPalette( physdev ); |
| } |
| else if (InterlockedExchangePointer( (void **)&hLastRealizedPalette, dc->hPalette ) != dc->hPalette) |
| { |
| PHYSDEV physdev = GET_DC_PHYSDEV( dc, pRealizePalette ); |
| PALETTEOBJ *palPtr = GDI_GetObjPtr( dc->hPalette, OBJ_PAL ); |
| if (palPtr) |
| { |
| realized = physdev->funcs->pRealizePalette( physdev, dc->hPalette, |
| (dc->hPalette == hPrimaryPalette) ); |
| palPtr->unrealize = physdev->funcs->pUnrealizePalette; |
| GDI_ReleaseObj( dc->hPalette ); |
| } |
| } |
| else TRACE(" skipping (hLastRealizedPalette = %p)\n", hLastRealizedPalette); |
| |
| release_dc_ptr( dc ); |
| TRACE(" realized %i colors.\n", realized ); |
| return realized; |
| } |
| |
| |
| /*********************************************************************** |
| * 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 = (void *)GetProcAddress( mod, "RedrawWindow" ); |
| if (pRedrawWindow) pRedrawWindow( hWnd, NULL, 0, RDW_INVALIDATE ); |
| } |
| } |
| } |
| return 0x666; |
| } |
| |
| /********************************************************************* |
| * SetMagicColors (GDI32.@) |
| */ |
| BOOL WINAPI SetMagicColors(HDC hdc, ULONG u1, ULONG u2) |
| { |
| FIXME("(%p 0x%08x 0x%08x): stub\n", hdc, u1, u2); |
| return TRUE; |
| } |
