GLdc/gl-rgb.h
2014-09-28 19:40:41 -07:00

64 lines
1.6 KiB
C
Executable File

/* KallistiGL for KallistiOS ##version##
libgl/gl-rgb.h
Copyright (C) 2013-2014 Josh Pearson
A set of functions for working with ARGB pixel data.
*/
#ifndef GL_RGB_H
#define GL_RGB_H
typedef GLubyte GLrgb3ub[3];
typedef GLubyte GLrgba4ub[3];
typedef GLfloat GLrgb3f[3];
typedef GLfloat GLrgba4f[4];
#define RGB565_RED_MASK 0xF800
#define RGB565_GREEN_MASK 0x7E0
#define RGB565_BLUE_MASK 0x1F
#define RGB565_RED_SHIFT 0xB
#define RGB565_GREEN_SHIFT 0x5
#define RGB565_BLUE_SHIFT 0x0
#define ARGB4444_ALPHA_MASK 0xF000
#define ARGB4444_RED_MASK 0x0F00
#define ARGB4444_GREEN_MASK 0x00F0
#define ARGB4444_BLUE_MASK 0x000F
#define ARGB4444_ALPHA_SHIFT 0xC
#define ARGB4444_RED_SHIFT 0x8
#define ARGB4444_GREEN_SHIFT 0x4
#define ARGB4444_BLUE_SHIFT 0x0
#define ARGB1555_ALPHA_MASK 0x8000
#define ARGB1555_RED_MASK 0x7C00
#define ARGB1555_GREEN_MASK 0x3E0
#define ARGB1555_BLUE_MASK 0x1F
#define ARGB1555_ALPHA_SHIFT 0xF
#define ARGB1555_RED_SHIFT 0xA
#define ARGB1555_GREEN_SHIFT 0x5
#define ARGB1555_BLUE_SHIFT 0x0
#define ARGB32_ALPHA_MASK 0xFF000000
#define ARGB32_RGB_MASK 0xFFFFFF
#define ARGB32_RED_SHIFT 0x8
#define RGBA32_APLHA_MASK 0xFF
#define RGBA32_RGB_MASK 0xFFFFFF00
#define RGB1_MAX 0x1
#define RGB4_MAX 0xF
#define RGB5_MAX 0x1F
#define RGB6_MAX 0x3F
#define RGB8_MAX 0xFF
#define RGBA32_2_ARGB32(n) (((n & ARGB32_RGB_MASK) << ARGB32_RED_SHIFT) | (n & ARGB32_ALPHA_MASK))
#define ARGB_PACK_RGBF(r,g,b) (0xFF000000 | ((r*0xFF) << 16) | ((g*0xFF)<<8) | (b*0xFF))
#define ARGB_PACK_ARGBF(a,r,g,b) (((a*0xFF) << 24) | ((r*0xFF) << 16) | ((g*0xFF)<<8) | (b*0xFF))
#endif