125 lines
3.7 KiB
C++
125 lines
3.7 KiB
C++
/**************************************************************************\
|
|
*
|
|
* Copyright (c) 1998-2001, Microsoft Corp. All Rights Reserved.
|
|
*
|
|
* Module Name:
|
|
*
|
|
* Gdiplus Pixel Formats
|
|
*
|
|
* Abstract:
|
|
*
|
|
* GDI+ Pixel Formats
|
|
*
|
|
\**************************************************************************/
|
|
|
|
#ifndef _GDIPLUSPIXELFORMATS_H
|
|
#define _GDIPLUSPIXELFORMATS_H
|
|
|
|
typedef DWORD ARGB;
|
|
typedef DWORDLONG ARGB64;
|
|
|
|
#define ALPHA_SHIFT 24
|
|
#define RED_SHIFT 16
|
|
#define GREEN_SHIFT 8
|
|
#define BLUE_SHIFT 0
|
|
#define ALPHA_MASK ((ARGB) 0xff << ALPHA_SHIFT)
|
|
|
|
// In-memory pixel data formats:
|
|
// bits 0-7 = format index
|
|
// bits 8-15 = pixel size (in bits)
|
|
// bits 16-23 = flags
|
|
// bits 24-31 = reserved
|
|
|
|
typedef INT PixelFormat;
|
|
|
|
#define PixelFormatIndexed 0x00010000 // Indexes into a palette
|
|
#define PixelFormatGDI 0x00020000 // Is a GDI-supported format
|
|
#define PixelFormatAlpha 0x00040000 // Has an alpha component
|
|
#define PixelFormatPAlpha 0x00080000 // Pre-multiplied alpha
|
|
#define PixelFormatExtended 0x00100000 // Extended color 16 bits/channel
|
|
#define PixelFormatCanonical 0x00200000
|
|
|
|
#define PixelFormatUndefined 0
|
|
#define PixelFormatDontCare 0
|
|
|
|
#define PixelFormat1bppIndexed (1 | ( 1 << 8) | PixelFormatIndexed | PixelFormatGDI)
|
|
#define PixelFormat4bppIndexed (2 | ( 4 << 8) | PixelFormatIndexed | PixelFormatGDI)
|
|
#define PixelFormat8bppIndexed (3 | ( 8 << 8) | PixelFormatIndexed | PixelFormatGDI)
|
|
#define PixelFormat16bppGrayScale (4 | (16 << 8) | PixelFormatExtended)
|
|
#define PixelFormat16bppRGB555 (5 | (16 << 8) | PixelFormatGDI)
|
|
#define PixelFormat16bppRGB565 (6 | (16 << 8) | PixelFormatGDI)
|
|
#define PixelFormat16bppARGB1555 (7 | (16 << 8) | PixelFormatAlpha | PixelFormatGDI)
|
|
#define PixelFormat24bppRGB (8 | (24 << 8) | PixelFormatGDI)
|
|
#define PixelFormat32bppRGB (9 | (32 << 8) | PixelFormatGDI)
|
|
#define PixelFormat32bppARGB (10 | (32 << 8) | PixelFormatAlpha | PixelFormatGDI | PixelFormatCanonical)
|
|
#define PixelFormat32bppPARGB (11 | (32 << 8) | PixelFormatAlpha | PixelFormatPAlpha | PixelFormatGDI)
|
|
#define PixelFormat48bppRGB (12 | (48 << 8) | PixelFormatExtended)
|
|
#define PixelFormat64bppARGB (13 | (64 << 8) | PixelFormatAlpha | PixelFormatCanonical | PixelFormatExtended)
|
|
#define PixelFormat64bppPARGB (14 | (64 << 8) | PixelFormatAlpha | PixelFormatPAlpha | PixelFormatExtended)
|
|
#define PixelFormatMax 15
|
|
|
|
inline UINT
|
|
GetPixelFormatSize(
|
|
PixelFormat pixfmt
|
|
)
|
|
{
|
|
return (pixfmt >> 8) & 0xff;
|
|
}
|
|
|
|
inline BOOL
|
|
IsIndexedPixelFormat(
|
|
PixelFormat pixfmt
|
|
)
|
|
{
|
|
return (pixfmt & PixelFormatIndexed) != 0;
|
|
}
|
|
|
|
inline BOOL
|
|
IsAlphaPixelFormat(
|
|
PixelFormat pixfmt
|
|
)
|
|
{
|
|
return (pixfmt & PixelFormatAlpha) != 0;
|
|
}
|
|
|
|
inline BOOL
|
|
IsExtendedPixelFormat(
|
|
PixelFormat pixfmt
|
|
)
|
|
{
|
|
return (pixfmt & PixelFormatExtended) != 0;
|
|
}
|
|
|
|
//--------------------------------------------------------------------------
|
|
// Determine if the Pixel Format is Canonical format:
|
|
// PixelFormat32bppARGB
|
|
// PixelFormat32bppPARGB
|
|
// PixelFormat64bppARGB
|
|
// PixelFormat64bppPARGB
|
|
//--------------------------------------------------------------------------
|
|
|
|
inline BOOL
|
|
IsCanonicalPixelFormat(
|
|
PixelFormat pixfmt
|
|
)
|
|
{
|
|
return (pixfmt & PixelFormatCanonical) != 0;
|
|
}
|
|
|
|
enum PaletteFlags
|
|
{
|
|
PaletteFlagsHasAlpha = 0x0001,
|
|
PaletteFlagsGrayScale = 0x0002,
|
|
PaletteFlagsHalftone = 0x0004
|
|
};
|
|
|
|
struct ColorPalette
|
|
{
|
|
public:
|
|
UINT Flags; // Palette flags
|
|
UINT Count; // Number of color entries
|
|
ARGB Entries[1]; // Palette color entries
|
|
};
|
|
|
|
#endif
|