reactos/win32ss/gdi/ntgdi/palette.h

   1 #pragma once
   2
   3 // Palette mode flags
   4 #ifndef __WINDDI_H // Defined in ddk/winddi.h
   5 #define PAL_INDEXED         0x00000001 // Indexed palette
   6 #define PAL_BITFIELDS       0x00000002 // Bit fields used for DIB, DIB section
   7 #define PAL_RGB             0x00000004 // Red, green, blue
   8 #define PAL_BGR             0x00000008 // Blue, green, red
   9 #define PAL_CMYK            0x00000010 // Cyan, magenta, yellow, black
  10 #endif
  11 #define PAL_DC              0x00000100
  12 #define PAL_FIXED           0x00000200 // Can't be changed
  13 #define PAL_FREE            0x00000400
  14 #define PAL_MANAGED         0x00000800
  15 #define PAL_NOSTATIC        0x00001000
  16 #define PAL_MONOCHROME      0x00002000 // Two colors only
  17 #define PAL_BRUSHHACK       0x00004000
  18 #define PAL_DIBSECTION      0x00008000 // Used for a DIB section
  19 #define PAL_NOSTATIC256     0x00010000
  20 #define PAL_HT              0x00100000 // Halftone palette
  21 #define PAL_RGB16_555       0x00200000 // 16-bit RGB in 555 format
  22 #define PAL_RGB16_565       0x00400000 // 16-bit RGB in 565 format
  23 #define PAL_GAMMACORRECTION 0x00800000 // Correct colors
  24
  25 typedef struct _PALETTE
  26 {
  27     /* Header for all gdi objects in the handle table.
  28        Do not (re)move this. */
  29     BASEOBJECT    BaseObject;
  30
  31     PALOBJ PalObj;
  32     XLATEOBJ *logicalToSystem;
  33     FLONG flFlags; // PAL_INDEXED, PAL_BITFIELDS, PAL_RGB, PAL_BGR
  34     ULONG NumColors;
  35     PALETTEENTRY *IndexedColors;
  36     ULONG RedMask;
  37     ULONG GreenMask;
  38     ULONG BlueMask;
  39     ULONG ulRedShift;
  40     ULONG ulGreenShift;
  41     ULONG ulBlueShift;
  42     HDEV  hPDev;
  43     PALETTEENTRY apalColors[0];
  44 } PALETTE;
  45
  46 extern PALETTE gpalRGB, gpalBGR, gpalMono, gpalRGB555, gpalRGB565, *gppalDefault;
  47 extern PPALETTE appalSurfaceDefault[];
  48
  49 #define  PALETTE_UnlockPalette(pPalette) GDIOBJ_vUnlockObject((POBJ)pPalette)
  50 #define  PALETTE_ShareLockPalette(hpal) \
  51   ((PPALETTE)GDIOBJ_ShareLockObj((HGDIOBJ)hpal, GDI_OBJECT_TYPE_PALETTE))
  52 #define  PALETTE_ShareUnlockPalette(ppal)  \
  53   GDIOBJ_vDereferenceObject(&ppal->BaseObject)
  54
  55 INIT_FUNCTION
  56 NTSTATUS
  57 NTAPI
  58 InitPaletteImpl(VOID);
  59
  60 PPALETTE
  61 NTAPI
  62 PALETTE_AllocPalette(
  63     _In_ ULONG iMode,
  64     _In_ ULONG cColors,
  65     _In_ PULONG pulColors,
  66     _In_ FLONG flRed,
  67     _In_ FLONG flGreen,
  68     _In_ FLONG flBlue);
  69
  70 PPALETTE
  71 NTAPI
  72 PALETTE_AllocPalWithHandle(
  73     _In_ ULONG iMode,
  74     _In_ ULONG cColors,
  75     _In_ PULONG pulColors,
  76     _In_ FLONG flRed,
  77     _In_ FLONG flGreen,
  78     _In_ FLONG flBlue);
  79
  80 VOID
  81 FASTCALL
  82 PALETTE_ValidateFlags(
  83     PALETTEENTRY* lpPalE,
  84     INT size);
  85
  86 INT
  87 FASTCALL
  88 PALETTE_GetObject(
  89     PPALETTE pGdiObject,
  90     INT cbCount,
  91     LPLOGBRUSH lpBuffer);
  92
  93 ULONG
  94 NTAPI
  95 PALETTE_ulGetNearestPaletteIndex(
  96     PPALETTE ppal,
  97     ULONG iColor);
  98
  99 ULONG
 100 NTAPI
 101 PALETTE_ulGetNearestIndex(
 102     PPALETTE ppal,
 103     ULONG iColor);
 104
 105 ULONG
 106 NTAPI
 107 PALETTE_ulGetNearestBitFieldsIndex(
 108     PPALETTE ppal,
 109     ULONG ulColor);
 110
 111 VOID
 112 NTAPI
 113 PALETTE_vGetBitMasks(
 114     PPALETTE ppal,
 115     PULONG pulColors);
 116
 117 BOOL
 118 NTAPI
 119 PALETTE_Cleanup(PVOID ObjectBody);
 120
 121 ULONG
 122 FORCEINLINE
 123 CalculateShift(ULONG ulMask1, ULONG ulMask2)
 124 {
 125     ULONG ulShift1, ulShift2;
 126     BitScanReverse(&ulShift1, ulMask1);
 127     BitScanReverse(&ulShift2, ulMask2);
 128     ulShift2 -= ulShift1;
 129     if ((INT)ulShift2 < 0) ulShift2 += 32;
 130     return ulShift2;
 131 }
 132
 133 FORCEINLINE
 134 ULONG
 135 PALETTE_ulGetRGBColorFromIndex(PPALETTE ppal, ULONG ulIndex)
 136 {
 137     if (ulIndex >= ppal->NumColors) return 0;
 138     return RGB(ppal->IndexedColors[ulIndex].peRed,
 139                ppal->IndexedColors[ulIndex].peGreen,
 140                ppal->IndexedColors[ulIndex].peBlue);
 141 }
 142
 143 HPALETTE
 144 NTAPI
 145 GreCreatePaletteInternal(
 146     IN LPLOGPALETTE pLogPal,
 147     IN UINT cEntries);
 148