subsystems/win32/win32k/include/palette.h

   1 #pragma once
   2
   3 #include <include/dc.h>
   4
   5 #define PALETTE_FIXED    0x0001 /* read-only colormap - have to use XAllocColor (if not virtual) */
   6 #define PALETTE_VIRTUAL  0x0002 /* no mapping needed - pixel == pixel color */
   7
   8 #define PALETTE_PRIVATE  0x1000 /* private colormap, identity mapping */
   9 #define PALETTE_WHITESET 0x2000
  10
  11 // Palette mode flags
  12 #ifndef __WINDDI_H // Defined in ddk/winddi.h
  13 #define PAL_INDEXED         0x00000001 // Indexed palette
  14 #define PAL_BITFIELDS       0x00000002 // Bit fields used for DIB, DIB section
  15 #define PAL_RGB             0x00000004 // Red, green, blue
  16 #define PAL_BGR             0x00000008 // Blue, green, red
  17 #define PAL_CMYK            0x00000010 // Cyan, magenta, yellow, black
  18 #endif
  19 #define PAL_DC              0x00000100
  20 #define PAL_FIXED           0x00000200 // Can't be changed
  21 #define PAL_FREE            0x00000400
  22 #define PAL_MANAGED         0x00000800
  23 #define PAL_NOSTATIC        0x00001000
  24 #define PAL_MONOCHROME      0x00002000 // Two colors only
  25 #define PAL_BRUSHHACK       0x00004000
  26 #define PAL_DIBSECTION      0x00008000 // Used for a DIB section
  27 #define PAL_NOSTATIC256     0x00010000
  28 #define PAL_HT              0x00100000 // Halftone palette
  29 #define PAL_RGB16_555       0x00200000 // 16-bit RGB in 555 format
  30 #define PAL_RGB16_565       0x00400000 // 16-bit RGB in 565 format
  31 #define PAL_GAMMACORRECTION 0x00800000 // Correct colors
  32
  33
  34 typedef struct _PALETTE
  35 {
  36   /* Header for all gdi objects in the handle table.
  37      Do not (re)move this. */
  38   BASEOBJECT    BaseObject;
  39
  40   PALOBJ PalObj;
  41   XLATEOBJ *logicalToSystem;
  42   HPALETTE Self;
  43   ULONG Mode; // PAL_INDEXED, PAL_BITFIELDS, PAL_RGB, PAL_BGR
  44   ULONG NumColors;
  45   PALETTEENTRY *IndexedColors;
  46   ULONG RedMask;
  47   ULONG GreenMask;
  48   ULONG BlueMask;
  49   ULONG ulRedShift;
  50   ULONG ulGreenShift;
  51   ULONG ulBlueShift;
  52   HDEV  hPDev;
  53 } PALETTE, *PPALETTE;
  54
  55 extern PALETTE gpalRGB, gpalBGR, gpalMono;
  56
  57
  58 HPALETTE FASTCALL PALETTE_AllocPalette(ULONG Mode,
  59                                        ULONG NumColors,
  60                                        ULONG *Colors,
  61                                        ULONG Red,
  62                                        ULONG Green,
  63                                        ULONG Blue);
  64 HPALETTE FASTCALL PALETTE_AllocPaletteIndexedRGB(ULONG NumColors,
  65                                                  CONST RGBQUAD *Colors);
  66 #define  PALETTE_FreePalette(pPalette)  GDIOBJ_FreeObj((POBJ)pPalette, GDIObjType_PAL_TYPE)
  67 #define  PALETTE_FreePaletteByHandle(hPalette)  GDIOBJ_FreeObjByHandle((HGDIOBJ)hPalette, GDI_OBJECT_TYPE_PALETTE)
  68 #define  PALETTE_LockPalette(hPalette) ((PPALETTE)GDIOBJ_LockObj((HGDIOBJ)hPalette, GDI_OBJECT_TYPE_PALETTE))
  69 #define  PALETTE_UnlockPalette(pPalette) GDIOBJ_UnlockObjByPtr((POBJ)pPalette)
  70
  71 #define  PALETTE_ShareLockPalette(hpal) \
  72   ((PPALETTE)GDIOBJ_ShareLockObj((HGDIOBJ)hpal, GDI_OBJECT_TYPE_PALETTE))
  73 #define  PALETTE_ShareUnlockPalette(ppal)  \
  74   GDIOBJ_ShareUnlockObjByPtr(&ppal->BaseObject)
  75
  76 BOOL INTERNAL_CALL PALETTE_Cleanup(PVOID ObjectBody);
  77
  78 HPALETTE FASTCALL PALETTE_Init (VOID);
  79 VOID     FASTCALL PALETTE_ValidateFlags (PALETTEENTRY* lpPalE, INT size);
  80 INT      FASTCALL PALETTE_ToPhysical (PDC dc, COLORREF color);
  81
  82 INT FASTCALL PALETTE_GetObject(PPALETTE pGdiObject, INT cbCount, LPLOGBRUSH lpBuffer);
  83 ULONG NTAPI PALETTE_ulGetNearestPaletteIndex(PALETTE* ppal, ULONG iColor);
  84 ULONG NTAPI PALETTE_ulGetNearestIndex(PALETTE* ppal, ULONG iColor);
  85 VOID NTAPI PALETTE_vGetBitMasks(PPALETTE ppal, PULONG pulColors);
  86
  87 PPALETTEENTRY FASTCALL ReturnSystemPalette (VOID);
  88 HPALETTE FASTCALL GdiSelectPalette(HDC, HPALETTE, BOOL);
  89
  90 ULONG
  91 FORCEINLINE
  92 CalculateShift(ULONG ulMask1, ULONG ulMask2)
  93 {
  94     ULONG ulShift1, ulShift2;
  95     BitScanReverse(&ulShift1, ulMask1);
  96     BitScanReverse(&ulShift2, ulMask2);
  97     ulShift2 -= ulShift1;
  98     if ((INT)ulShift2 < 0) ulShift2 += 32;
  99     return ulShift2;
 100 }
 101
 102 FORCEINLINE
 103 ULONG
 104 PALETTE_ulGetRGBColorFromIndex(PPALETTE ppal, ULONG ulIndex)
 105 {
 106     return RGB(ppal->IndexedColors[ulIndex].peRed,
 107                ppal->IndexedColors[ulIndex].peGreen,
 108                ppal->IndexedColors[ulIndex].peBlue);
 109 }