469 lines
14 KiB
C
469 lines
14 KiB
C
/*
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* GDI palette objects
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*
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* Copyright 1993,1994 Alexandre Julliard
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* Copyright 1996 Alex Korobka
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*
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*/
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#include <stdlib.h>
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#include <string.h>
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#include <X11/Xlib.h>
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#include "gdi.h"
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#include "color.h"
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#include "palette.h"
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#include "xmalloc.h"
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#include "stddebug.h"
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/* #define DEBUG_PALETTE */
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#include "debug.h"
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extern int COLOR_LookupSystemPixel(COLORREF); /* lookup pixel among static entries
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* of the system palette */
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extern COLORREF COLOR_GetSystemPaletteEntry(BYTE);
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static WORD SystemPaletteUse = SYSPAL_STATIC; /* currently not considered */
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static HPALETTE16 hPrimaryPalette = 0; /* used for WM_PALETTECHANGED */
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static HPALETTE16 hLastRealizedPalette = 0; /* UnrealizeObject() needs it */
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/***********************************************************************
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* PALETTE_ValidateFlags
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*/
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void PALETTE_ValidateFlags(PALETTEENTRY* lpPalE, int size)
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{
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int i = 0;
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for( ; i<size ; i++ )
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lpPalE[i].peFlags = PC_SYS_USED | (lpPalE[i].peFlags & 0x07);
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}
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/***********************************************************************
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* CreatePalette (GDI.360)
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*/
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HPALETTE16 CreatePalette( const LOGPALETTE* palette )
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{
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PALETTEOBJ * palettePtr;
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HPALETTE16 hpalette;
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int size = sizeof(LOGPALETTE) + (palette->palNumEntries - 1) * sizeof(PALETTEENTRY);
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dprintf_palette(stddeb,"CreatePalette: ");
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dprintf_palette(stddeb,"%i entries, ", palette->palNumEntries);
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hpalette = GDI_AllocObject( size + sizeof(int*) +sizeof(GDIOBJHDR) , PALETTE_MAGIC );
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if (!hpalette) return 0;
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palettePtr = (PALETTEOBJ *) GDI_HEAP_LIN_ADDR( hpalette );
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memcpy( &palettePtr->logpalette, palette, size );
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PALETTE_ValidateFlags(palettePtr->logpalette.palPalEntry,
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palettePtr->logpalette.palNumEntries);
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palettePtr->mapping = NULL;
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dprintf_palette(stddeb,"returning %04x\n", hpalette);
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return hpalette;
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}
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/***********************************************************************
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* GetPaletteEntries (GDI.363)
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*/
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WORD GetPaletteEntries( HPALETTE16 hpalette, WORD start, WORD count,
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LPPALETTEENTRY entries )
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{
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PALETTEOBJ * palPtr;
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int numEntries;
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dprintf_palette(stddeb,"GetPaletteEntries: hpal = %04x, %i entries\n", hpalette, count);
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palPtr = (PALETTEOBJ *) GDI_GetObjPtr( hpalette, PALETTE_MAGIC );
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if (!palPtr) return 0;
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numEntries = palPtr->logpalette.palNumEntries;
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if (start >= numEntries) return 0;
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if (start+count > numEntries) count = numEntries - start;
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memcpy( entries, &palPtr->logpalette.palPalEntry[start],
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count * sizeof(PALETTEENTRY) );
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for( numEntries = 0; numEntries < count ; numEntries++ )
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if( entries[numEntries].peFlags & 0xF0 ) entries[numEntries].peFlags = 0;
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return count;
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}
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/***********************************************************************
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* SetPaletteEntries (GDI.364)
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*/
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WORD SetPaletteEntries( HPALETTE16 hpalette, WORD start, WORD count,
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LPPALETTEENTRY entries )
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{
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PALETTEOBJ * palPtr;
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int numEntries;
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dprintf_palette(stddeb,"SetPaletteEntries: hpal = %04x, %i entries\n", hpalette, count);
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palPtr = (PALETTEOBJ *) GDI_GetObjPtr( hpalette, PALETTE_MAGIC );
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if (!palPtr) return 0;
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numEntries = palPtr->logpalette.palNumEntries;
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if (start >= numEntries) return 0;
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if (start+count > numEntries) count = numEntries - start;
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memcpy( &palPtr->logpalette.palPalEntry[start], entries,
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count * sizeof(PALETTEENTRY) );
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PALETTE_ValidateFlags(palPtr->logpalette.palPalEntry,
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palPtr->logpalette.palNumEntries);
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free(palPtr->mapping);
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palPtr->mapping = NULL;
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return count;
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}
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/***********************************************************************
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* ResizePalette (GDI.368)
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*/
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BOOL ResizePalette(HPALETTE16 hPal, UINT cEntries)
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{
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PALETTEOBJ * palPtr = (PALETTEOBJ *) GDI_GetObjPtr( hPal, PALETTE_MAGIC );
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UINT cPrevEnt, prevVer;
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int prevsize, size = sizeof(LOGPALETTE) + (cEntries - 1) * sizeof(PALETTEENTRY);
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int* mapping = NULL;
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dprintf_palette(stddeb,"ResizePalette: hpal = %04x, prev = %i, new = %i\n",
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hPal, (palPtr)? -1: palPtr->logpalette.palNumEntries, cEntries );
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if( !palPtr ) return FALSE;
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cPrevEnt = palPtr->logpalette.palNumEntries;
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prevVer = palPtr->logpalette.palVersion;
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prevsize = sizeof(LOGPALETTE) + (cPrevEnt - 1) * sizeof(PALETTEENTRY) +
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sizeof(int*) + sizeof(GDIOBJHDR);
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size += sizeof(int*) + sizeof(GDIOBJHDR);
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mapping = palPtr->mapping;
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GDI_HEAP_REALLOC( hPal, size );
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palPtr = (PALETTEOBJ *) GDI_GetObjPtr( hPal, PALETTE_MAGIC );
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if( !palPtr ) return FALSE;
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if( mapping )
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palPtr->mapping = (int*) xrealloc( mapping, cEntries * sizeof(int) );
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if( cEntries > cPrevEnt )
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{
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if( mapping )
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memset(palPtr->mapping + cPrevEnt, 0, (cEntries - cPrevEnt)*sizeof(int));
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memset( (BYTE*)palPtr + prevsize, 0, size - prevsize );
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PALETTE_ValidateFlags((PALETTEENTRY*)((BYTE*)palPtr + prevsize),
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cEntries - cPrevEnt );
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}
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palPtr->logpalette.palNumEntries = cEntries;
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palPtr->logpalette.palVersion = prevVer;
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return TRUE;
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}
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/***********************************************************************
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* AnimatePalette (GDI.367)
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*/
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BOOL AnimatePalette(HPALETTE16 hPal, UINT StartIndex, UINT NumEntries,
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LPPALETTEENTRY PaletteColors)
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{
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fprintf(stdnimp,"AnimatePalette: empty stub! \n");
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return TRUE;
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}
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/***********************************************************************
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* SetSystemPaletteUse (GDI.373)
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*/
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WORD SetSystemPaletteUse( HDC16 hdc, WORD use)
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{
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WORD old=SystemPaletteUse;
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fprintf(stdnimp,"SetSystemPaletteUse(%04x,%04x) // empty stub !!!\n", hdc, use);
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SystemPaletteUse=use;
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return old;
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}
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/***********************************************************************
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* GetSystemPaletteUse (GDI.374)
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*/
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WORD GetSystemPaletteUse( HDC16 hdc )
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{
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fprintf(stdnimp,"GetSystemPaletteUse(%04x) // empty stub !!!\n", hdc);
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return SystemPaletteUse;
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}
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/***********************************************************************
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* GetSystemPaletteEntries (GDI.375)
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*/
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WORD GetSystemPaletteEntries( HDC16 hdc, WORD start, WORD count,
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LPPALETTEENTRY entries )
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{
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WORD i;
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DC *dc;
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dprintf_palette(stddeb,"GetSystemPaletteEntries: hdc = %04x, cound = %i", hdc, count );
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if (!(dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC ))) return 0;
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if (start >= dc->w.devCaps->sizePalette) return 0;
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if (start+count >= dc->w.devCaps->sizePalette)
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count = dc->w.devCaps->sizePalette - start;
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for (i = 0; i < count; i++)
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{
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*(COLORREF*)(entries + i) = COLOR_GetSystemPaletteEntry((BYTE)(start + i));
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dprintf_palette(stddeb,"\tidx(%02x) -> RGB(%08lx)\n", (unsigned char)(start + i),
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*(COLORREF*)(entries + i) );
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}
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return count;
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}
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/***********************************************************************
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* GetNearestPaletteIndex (GDI.370)
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*/
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WORD GetNearestPaletteIndex( HPALETTE16 hpalette, COLORREF color )
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{
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PALETTEOBJ* palObj = (PALETTEOBJ*) GDI_GetObjPtr( hpalette, PALETTE_MAGIC );
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WORD index = 0;
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if( palObj )
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index = COLOR_PaletteLookupPixel( palObj->logpalette.palPalEntry,
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palObj->logpalette.palNumEntries, NULL,
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color, FALSE );
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dprintf_palette(stddeb,"GetNearestPaletteIndex(%04x,%06lx): returning %d\n",
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hpalette, color, index );
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return index;
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}
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/***********************************************************************
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* GetNearestColor (GDI.154)
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*/
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COLORREF GetNearestColor( HDC16 hdc, COLORREF color )
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{
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COLORREF nearest = 0xFADECAFE;
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DC *dc;
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PALETTEOBJ *palObj;
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if ( (dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC )) )
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{
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palObj = (PALETTEOBJ*)
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GDI_GetObjPtr( (dc->w.hPalette)? dc->w.hPalette
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: STOCK_DEFAULT_PALETTE, PALETTE_MAGIC );
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nearest = COLOR_LookupNearestColor( palObj->logpalette.palPalEntry,
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palObj->logpalette.palNumEntries, color );
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}
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dprintf_palette(stddeb,"GetNearestColor(%06lx): returning %06lx\n",
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color, nearest );
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return nearest;
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}
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/***********************************************************************
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* PALETTE_GetObject
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*/
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int PALETTE_GetObject( PALETTEOBJ * palette, int count, LPSTR buffer )
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{
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if (count > sizeof(WORD)) count = sizeof(WORD);
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memcpy( buffer, &palette->logpalette.palNumEntries, count );
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return count;
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}
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/***********************************************************************
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* PALETTE_UnrealizeObject
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*/
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BOOL32 PALETTE_UnrealizeObject( HPALETTE16 hpalette, PALETTEOBJ *palette )
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{
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if (palette->mapping)
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{
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free( palette->mapping );
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palette->mapping = NULL;
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}
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if (hLastRealizedPalette == hpalette) hLastRealizedPalette = 0;
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return TRUE;
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}
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/***********************************************************************
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* PALETTE_DeleteObject
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*/
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BOOL32 PALETTE_DeleteObject( HPALETTE16 hpalette, PALETTEOBJ *palette )
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{
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free( palette->mapping );
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return GDI_FreeObject( hpalette );
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}
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/***********************************************************************
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* GDISelectPalette (GDI.361)
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*/
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HPALETTE16 GDISelectPalette( HDC16 hdc, HPALETTE16 hpal, WORD wBkg)
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{
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HPALETTE16 prev;
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DC *dc;
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dprintf_palette(stddeb, "GDISelectPalette: %04x %04x\n", hdc, hpal );
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dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
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if (!dc)
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{
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dc = (DC *)GDI_GetObjPtr(hdc, METAFILE_DC_MAGIC);
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if (!dc) return 0;
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}
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prev = dc->w.hPalette;
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dc->w.hPalette = hpal;
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if (!wBkg) hPrimaryPalette = hpal;
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return prev;
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}
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/***********************************************************************
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* GDIRealizePalette (GDI.362)
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*
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*/
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UINT GDIRealizePalette( HDC16 hdc )
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{
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PALETTEOBJ* palPtr;
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int realized = 0;
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DC* dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
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if (!dc)
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{
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dc = (DC *)GDI_GetObjPtr(hdc, METAFILE_DC_MAGIC);
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if (!dc) return 0;
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}
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dprintf_palette(stddeb, "GDIRealizePalette: %04x...", hdc );
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if( dc && dc->w.hPalette != hLastRealizedPalette )
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{
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if( dc->w.hPalette == STOCK_DEFAULT_PALETTE )
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return RealizeDefaultPalette( hdc );
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palPtr = (PALETTEOBJ *) GDI_GetObjPtr( dc->w.hPalette, PALETTE_MAGIC );
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realized = COLOR_SetMapping(palPtr, dc->w.hPalette != hPrimaryPalette
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|| dc->w.hPalette == STOCK_DEFAULT_PALETTE );
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hLastRealizedPalette = dc->w.hPalette;
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}
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else dprintf_palette(stddeb, " skipping ");
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dprintf_palette(stdnimp, " realized %i colors\n", realized );
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return (UINT)realized;
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}
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/***********************************************************************
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* RealizeDefaultPalette (GDI.365)
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*/
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WORD RealizeDefaultPalette( HDC16 hdc )
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{
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DC *dc;
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PALETTEOBJ* palPtr;
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int i, index, realized = 0;
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dprintf_palette(stddeb,"RealizeDefaultPalette: %04x\n", hdc );
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dc = (DC *) GDI_GetObjPtr( hdc, DC_MAGIC );
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if (!dc)
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{
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dc = (DC *)GDI_GetObjPtr(hdc, METAFILE_DC_MAGIC);
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if (!dc) return 0;
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}
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if ( dc->w.flags & DC_MEMORY ) return 0;
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hPrimaryPalette = STOCK_DEFAULT_PALETTE;
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hLastRealizedPalette = STOCK_DEFAULT_PALETTE;
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palPtr = (PALETTEOBJ*)GDI_GetObjPtr(STOCK_DEFAULT_PALETTE, PALETTE_MAGIC );
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/* lookup is needed to account for SetSystemPaletteUse() stuff */
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for( i = 0; i < 20; i++ )
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{
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index = COLOR_LookupSystemPixel(*(COLORREF*)(palPtr->logpalette.palPalEntry + i));
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/* mapping is allocated in COLOR_InitPalette() */
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if( index != palPtr->mapping[i] ) { palPtr->mapping[i]=index; realized++; }
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}
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return realized;
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}
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/***********************************************************************
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* IsDCCurrentPalette (GDI.412)
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*/
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BOOL IsDCCurrentPalette(HDC16 hDC)
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{
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DC* dc = (DC *)GDI_GetObjPtr( hDC, DC_MAGIC );
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return (dc)?(dc->w.hPalette == hPrimaryPalette):FALSE;
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}
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/***********************************************************************
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* SelectPalette (USER.282)
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*/
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HPALETTE16 SelectPalette( HDC16 hDC, HPALETTE16 hPal, BOOL bForceBackground )
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{
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WORD wBkgPalette = 1;
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PALETTEOBJ* lpt = (PALETTEOBJ*) GDI_GetObjPtr( hPal, PALETTE_MAGIC );
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dprintf_palette(stddeb,"SelectPalette: dc %04x pal %04x, force=%i ",
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hDC, hPal, bForceBackground);
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if( !lpt ) return 0;
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dprintf_palette(stddeb," entries = %d\n",
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lpt->logpalette.palNumEntries);
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if( hPal != STOCK_DEFAULT_PALETTE )
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{
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HWND32 hWnd = WindowFromDC32( hDC );
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HWND32 hActive = GetActiveWindow();
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/* set primary palette if it's related to current active */
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if((!hWnd || (hActive == hWnd || IsChild(hActive,hWnd))) &&
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!bForceBackground )
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wBkgPalette = 0;
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}
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return GDISelectPalette( hDC, hPal, wBkgPalette);
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}
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/***********************************************************************
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* RealizePalette (USER.283) (GDI32.280)
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*/
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UINT16 RealizePalette( HDC32 hDC )
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{
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UINT16 realized = GDIRealizePalette( hDC );
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/* do not send anything if no colors were changed */
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if( IsDCCurrentPalette( hDC ) && realized &&
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!(COLOR_GetSystemPaletteFlags() & COLOR_VIRTUAL) )
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{
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/* Send palette change notification */
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HWND32 hWnd;
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if( (hWnd = WindowFromDC32( hDC )) )
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SendMessage16( HWND_BROADCAST, WM_PALETTECHANGED, hWnd, 0L);
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}
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return realized;
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}
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/**********************************************************************
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* UpdateColors (GDI.366)
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*
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*/
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int UpdateColors( HDC16 hDC )
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{
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HWND32 hWnd = WindowFromDC32( hDC );
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/* Docs say that we have to remap current drawable pixel by pixel
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* but it would take forever given the speed of XGet/PutPixel.
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*/
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if (hWnd && !(COLOR_GetSystemPaletteFlags() & COLOR_VIRTUAL) )
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InvalidateRect16( hWnd, NULL, FALSE );
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return 0x666;
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}
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