443 lines
17 KiB
C
443 lines
17 KiB
C
/*
|
|
* This file is subject to the terms of the GFX License. If a copy of
|
|
* the license was not distributed with this file, you can obtain one at:
|
|
*
|
|
* http://ugfx.io/license.html
|
|
*/
|
|
|
|
/**
|
|
* @file src/gdisp/gdisp_colors.h
|
|
*
|
|
* @defgroup Colors Colors
|
|
* @ingroup GDISP
|
|
*
|
|
* @brief Sub-Module for color handling.
|
|
*
|
|
* @{
|
|
*/
|
|
|
|
#ifndef _GDISP_COLORS_H
|
|
#define _GDISP_COLORS_H
|
|
|
|
#include "../../gfx.h"
|
|
|
|
#if GFX_USE_GDISP || defined(__DOXYGEN__)
|
|
|
|
typedef gU16 gColorformat;
|
|
|
|
/**
|
|
* @name Color system masks
|
|
*
|
|
* @details For pixel formats we do some assignment of codes to enable
|
|
* format auto-calculation. (Undocumented).
|
|
* 0x2RGB TRUECOLOR RGB format, R = red bits, G = green bits, B = blue bits
|
|
* 0x3RGB TRUECOLOR BGR format, R = red bits, G = green bits, B = blue bits
|
|
* 0x40XX GRAYSCALE XX = bits
|
|
* 0x60XX PALLETTE XX = bits
|
|
* 0x8XXX CUSTOM format.
|
|
* @{
|
|
*/
|
|
#define GDISP_COLORSYSTEM_MASK 0xF000
|
|
#define GDISP_COLORSYSTEM_RGB 0x2000
|
|
#define GDISP_COLORSYSTEM_BGR 0x3000
|
|
/** @} */
|
|
|
|
/**
|
|
* @name Color Type Constants
|
|
* @{
|
|
*/
|
|
#define GDISP_COLORSYSTEM_TRUECOLOR 0x2000
|
|
#define GDISP_COLORSYSTEM_GRAYSCALE 0x4000
|
|
#define GDISP_COLORSYSTEM_PALETTE 0x6000
|
|
/** @} */
|
|
|
|
/**
|
|
* @name Pixel Format Constants
|
|
* @{
|
|
*/
|
|
#define GDISP_PIXELFORMAT_MONO (GDISP_COLORSYSTEM_GRAYSCALE|0x0001)
|
|
#define GDISP_PIXELFORMAT_GRAY4 (GDISP_COLORSYSTEM_GRAYSCALE|0x0002)
|
|
#define GDISP_PIXELFORMAT_GRAY16 (GDISP_COLORSYSTEM_GRAYSCALE|0x0004)
|
|
#define GDISP_PIXELFORMAT_GRAY256 (GDISP_COLORSYSTEM_GRAYSCALE|0x0008)
|
|
#define GDISP_PIXELFORMAT_RGB565 (GDISP_COLORSYSTEM_RGB|0x0565)
|
|
#define GDISP_PIXELFORMAT_BGR565 (GDISP_COLORSYSTEM_BGR|0x0565)
|
|
#define GDISP_PIXELFORMAT_RGB555 (GDISP_COLORSYSTEM_RGB|0x0555)
|
|
#define GDISP_PIXELFORMAT_BGR555 (GDISP_COLORSYSTEM_BGR|0x0555)
|
|
#define GDISP_PIXELFORMAT_RGB888 (GDISP_COLORSYSTEM_RGB|0x0888)
|
|
#define GDISP_PIXELFORMAT_BGR888 (GDISP_COLORSYSTEM_BGR|0x0888)
|
|
#define GDISP_PIXELFORMAT_RGB444 (GDISP_COLORSYSTEM_RGB|0x0444)
|
|
#define GDISP_PIXELFORMAT_BGR444 (GDISP_COLORSYSTEM_BGR|0x0444)
|
|
#define GDISP_PIXELFORMAT_RGB332 (GDISP_COLORSYSTEM_RGB|0x0332)
|
|
#define GDISP_PIXELFORMAT_BGR332 (GDISP_COLORSYSTEM_BGR|0x0233)
|
|
#define GDISP_PIXELFORMAT_RGB233 (GDISP_COLORSYSTEM_RGB|0x0233)
|
|
#define GDISP_PIXELFORMAT_BGR233 (GDISP_COLORSYSTEM_BGR|0x0332)
|
|
#define GDISP_PIXELFORMAT_RGB666 (GDISP_COLORSYSTEM_RGB|0x0666)
|
|
#define GDISP_PIXELFORMAT_BGR666 (GDISP_COLORSYSTEM_BGR|0x0666)
|
|
#define GDISP_PIXELFORMAT_ERROR 0x0000
|
|
/** @} */
|
|
|
|
/**
|
|
* @name Some basic colors
|
|
* @{
|
|
*/
|
|
#define GFX_WHITE HTML2COLOR(0xFFFFFF)
|
|
#define GFX_BLACK HTML2COLOR(0x000000)
|
|
#define GFX_GRAY HTML2COLOR(0x808080)
|
|
#define GFX_GREY GFX_GRAY
|
|
#define GFX_BLUE HTML2COLOR(0x0000FF)
|
|
#define GFX_RED HTML2COLOR(0xFF0000)
|
|
#define GFX_FUCHSIA HTML2COLOR(0xFF00FF)
|
|
#define GFX_MAGENTA GFX_FUCHSIA
|
|
#define GFX_GREEN HTML2COLOR(0x008000)
|
|
#define GFX_YELLOW HTML2COLOR(0xFFFF00)
|
|
#define GFX_AQUA HTML2COLOR(0x00FFFF)
|
|
#define GFX_CYAN GFX_AQUA
|
|
#define GFX_LIME HTML2COLOR(0x00FF00)
|
|
#define GFX_MAROON HTML2COLOR(0x800000)
|
|
#define GFX_NAVY HTML2COLOR(0x000080)
|
|
#define GFX_OLIVE HTML2COLOR(0x808000)
|
|
#define GFX_PURPLE HTML2COLOR(0x800080)
|
|
#define GFX_SILVER HTML2COLOR(0xC0C0C0)
|
|
#define GFX_TEAL HTML2COLOR(0x008080)
|
|
#define GFX_ORANGE HTML2COLOR(0xFFA500)
|
|
#define GFX_PINK HTML2COLOR(0xFFC0CB)
|
|
#define GFX_SKYBLUE HTML2COLOR(0x87CEEB)
|
|
/** @} */
|
|
|
|
#if GFX_COMPAT_V2 && GFX_COMPAT_OLDCOLORS
|
|
#define White GFX_WHITE
|
|
#define Black GFX_BLACK
|
|
#define Gray GFX_GRAY
|
|
#define Grey GFX_GREY
|
|
#define Blue GFX_BLUE
|
|
#define Red GFX_RED
|
|
#define Fuchsia GFX_FUCHSIA
|
|
#define Magenta GFX_MAGENTA
|
|
#define Green GFX_GREEN
|
|
#define Yellow GFX_YELLOW
|
|
#define Aqua GFX_AQUA
|
|
#define Cyan GFX_CYAN
|
|
#define Lime GFX_LIME
|
|
#define Maroon GFX_MAROON
|
|
#define Navy GFX_NAVY
|
|
#define Olive GFX_OLIVE
|
|
#define Purple GFX_PURPLE
|
|
#define Silver GFX_SILVER
|
|
#define Teal GFX_TEAL
|
|
#define Orange GFX_ORANGE
|
|
#define Pink GFX_PINK
|
|
#define SkyBlue GFX_SKYBLUE
|
|
#endif
|
|
|
|
#if defined(__DOXYGEN__)
|
|
/**
|
|
* @brief The color system (grayscale, palette or truecolor)
|
|
*/
|
|
#define COLOR_SYSTEM GDISP_COLORSYSTEM_TRUECOLOR
|
|
|
|
/**
|
|
* @brief The number of bits in a color value
|
|
*/
|
|
#define COLOR_BITS 16
|
|
|
|
/**
|
|
* @name Color bits
|
|
* @brief The number of bits for each of red, green and blue
|
|
* @{
|
|
*/
|
|
#define COLOR_BITS_R 5
|
|
#define COLOR_BITS_G 6
|
|
#define COLOR_BITS_B 5
|
|
/** @} */
|
|
|
|
/**
|
|
* @name Color bit shifts
|
|
* @brief The number of bits to shift each of red, green and blue to put it in the correct place in the color
|
|
* @{
|
|
*/
|
|
#define COLOR_SHIFT_R 11
|
|
#define COLOR_SHIFT_G 5
|
|
#define COLOR_SHIFT_B 0
|
|
/** @} */
|
|
|
|
/**
|
|
* @brief Does the color need masking to remove invalid bits
|
|
*/
|
|
#define COLOR_NEEDS_MASK GFXOFF
|
|
|
|
/**
|
|
* @brief If the color needs masking to remove invalid bits, this is the mask
|
|
*/
|
|
#define COLOR_MASK 0xFFFF
|
|
|
|
/**
|
|
* @brief The color type
|
|
*/
|
|
#define COLOR_TYPE gU16
|
|
|
|
/**
|
|
* @brief The number of bits in the color type (not necessarily the same as COLOR_BITS).
|
|
*/
|
|
#define COLOR_TYPE_BITS 16
|
|
|
|
/**
|
|
* @brief Convert a luminance (0 to 255) into a color value.
|
|
* @note The word "Luma" is used instead of grey or gray due to the spelling ambiguities of the word grey
|
|
* @note This is not a weighted luminance conversion in the color tv style.
|
|
* @note @p LUMA2COLOR() uses a linear conversion (0.33R + 0.33G + 0.33B). Note this is different to color
|
|
* tv luminance (0.26126R + 0.7152G + 0.0722B), digital tv luminance of (0.299R + 0.587G + 0.114B), or
|
|
* @p LUMA_OF() which uses (0.25R + 0.5G + 0.25B).
|
|
*/
|
|
#define LUMA2COLOR(l) ((gColor)((((l) & 0xF8)<<8) | (((l) & 0xFC)<<3) | (((l) & 0xF8)>>3)))
|
|
|
|
/**
|
|
* @brief Convert red, green, blue (each 0 to 255) into a color value.
|
|
*/
|
|
#define RGB2COLOR(r,g,b) ((gColor)((((r) & 0xF8)<<8) | (((g) & 0xFC)<<3) | (((b) & 0xF8)>>3)))
|
|
|
|
/**
|
|
* @brief Convert a 6 digit HTML code (hex) into a color value.
|
|
*/
|
|
#define HTML2COLOR(h) ((gColor)((((h) & 0xF80000)>>8) | (((h) & 0x00FC00)>>5) | (((h) & 0x0000F8)>>3)))
|
|
|
|
/**
|
|
* @name Extraction macros (quick)
|
|
*
|
|
* @brief Extract the luma/red/green/blue component (0 to 255) of a color value.
|
|
* @note This uses quick and dirty bit shifting. If you want more exact colors
|
|
* use @p EXACT_RED_OF() etc which uses multiplies and divides. For constant
|
|
* colors using @p EXACT_RED_OF() is no more expensive because the compiler
|
|
* evaluates the arithmetic.
|
|
* @note @p LUMA_OF() returns a roughly weighted luminance (0.25R + 0.5G + 0.25B). Note this is
|
|
* different to @p LUMA2COLOR() which uses a linear conversion (0.33R + 0.33G + 0.33B) and
|
|
* color tv luminance of (0.26126R + 0.7152G + 0.0722B) and digital tv luminance of (0.299R + 0.587G + 0.114B).
|
|
* @note A 5 bit color component maximum value (0x1F) converts to 0xF8 (slightly off-color)
|
|
* @{
|
|
*/
|
|
#define LUMA_OF(c) ((RED_OF(c)+((gU16)GREEN_OF(c)<<1)+BLUE_OF(c))>>2)
|
|
#define RED_OF(c) (((c) & 0xF800)>>8)
|
|
#define GREEN_OF(c) (((c)&0x07E0)>>3)
|
|
#define BLUE_OF(c) (((c)&0x001F)<<3)
|
|
/** @} */
|
|
|
|
/**
|
|
* @name Extraction macros (precise)
|
|
*
|
|
* @brief Extract the exact luma/red/green/blue component (0 to 255) of a color value.
|
|
* @note This uses multiplies and divides rather than bit shifting.
|
|
* This gives exact equivalent colors at the expense of more cpu intensive
|
|
* operations. Note for constants this is no more expensive than @p REF_OF()
|
|
* because the compiler evaluates the arithmetic.
|
|
* @note @p EXACT_LUMA_OF() returns a roughly weighted luminance (0.25R + 0.5G + 0.25B). Note this is
|
|
* different to @p LUMA2COLOR() which uses a linear conversion (0.33R + 0.33G + 0.33B) and
|
|
* color tv luminance of (0.26126R + 0.7152G + 0.0722B) and digital tv luminance of (0.299R + 0.587G + 0.114B).
|
|
* @note A 5 bit color component maximum value (0x1F) converts to 0xFF (the true equivalent color)
|
|
* @{
|
|
*/
|
|
#define EXACT_LUMA_OF(c) ((EXACT_RED_OF(c)+((gU16)EXACT_GREEN_OF(c)<<1)+EXACT_BLUE_OF(c))>>2)
|
|
#define EXACT_RED_OF(c) (((((c)>>11)&0x1F)*255)/31)
|
|
#define EXACT_GREEN_OF(c) (((((c)>>5)&0x3F)*255)/63)
|
|
#define EXACT_BLUE_OF(c) (((((c)>>0)&0x1F)*255)/31)
|
|
/** @} */
|
|
#endif
|
|
|
|
/*
|
|
* We use this big mess of macros to calculate all the components
|
|
* to prevent user errors in the color definitions. It greatly simplifies
|
|
* the above definitions and ensures a consistent implementation.
|
|
*/
|
|
|
|
//-------------------------
|
|
// True-Color color system
|
|
//-------------------------
|
|
#if GDISP_PIXELFORMAT & GDISP_COLORSYSTEM_TRUECOLOR
|
|
#define COLOR_SYSTEM GDISP_COLORSYSTEM_TRUECOLOR
|
|
|
|
// Calculate the number of bits
|
|
#define COLOR_BITS_R ((GDISP_PIXELFORMAT>>8) & 0x0F)
|
|
#define COLOR_BITS_G ((GDISP_PIXELFORMAT>>4) & 0x0F)
|
|
#define COLOR_BITS_B ((GDISP_PIXELFORMAT>>0) & 0x0F)
|
|
#define COLOR_BITS (COLOR_BITS_R + COLOR_BITS_G + COLOR_BITS_B)
|
|
|
|
// From the number of bits determine COLOR_TYPE, COLOR_TYPE_BITS and masking
|
|
#if COLOR_BITS <= 8
|
|
#define COLOR_TYPE gU8
|
|
#define COLOR_TYPE_BITS 8
|
|
#elif COLOR_BITS <= 16
|
|
#define COLOR_TYPE gU16
|
|
#define COLOR_TYPE_BITS 16
|
|
#elif COLOR_BITS <= 32
|
|
#define COLOR_TYPE gU32
|
|
#define COLOR_TYPE_BITS 32
|
|
#else
|
|
#error "GDISP: Cannot define color types with more than 32 bits"
|
|
#endif
|
|
#if COLOR_TYPE_BITS == COLOR_BITS
|
|
#define COLOR_NEEDS_MASK GFXOFF
|
|
#else
|
|
#define COLOR_NEEDS_MASK GFXON
|
|
#endif
|
|
#define COLOR_MASK() ((1 << COLOR_BITS)-1)
|
|
|
|
// Calculate the component bit shifts
|
|
#if (GDISP_PIXELFORMAT & GDISP_COLORSYSTEM_MASK) == GDISP_COLORSYSTEM_RGB
|
|
#define COLOR_SHIFT_R (COLOR_BITS_B+COLOR_BITS_G)
|
|
#define COLOR_SHIFT_G COLOR_BITS_B
|
|
#define COLOR_SHIFT_B 0
|
|
#else
|
|
#define COLOR_SHIFT_B (COLOR_BITS_R+COLOR_BITS_G)
|
|
#define COLOR_SHIFT_G COLOR_BITS_R
|
|
#define COLOR_SHIFT_R 0
|
|
#endif
|
|
|
|
// Calculate RED_OF, GREEN_OF, BLUE_OF and RGB2COLOR
|
|
#if COLOR_BITS_R + COLOR_SHIFT_R == 8
|
|
#define RED_OF(c) ((c) & (((1<<COLOR_BITS_R)-1) << COLOR_SHIFT_R))
|
|
#define RGB2COLOR_R(r) ((COLOR_TYPE)((r) & (0xFF & ~((1<<(8-COLOR_BITS_R))-1))))
|
|
#elif COLOR_BITS_R + COLOR_SHIFT_R > 8
|
|
#define RED_OF(c) (((c) & (((1<<COLOR_BITS_R)-1) << COLOR_SHIFT_R)) >> (COLOR_BITS_R+COLOR_SHIFT_R-8))
|
|
#define RGB2COLOR_R(r) (((COLOR_TYPE)((r) & (0xFF & ~((1<<(8-COLOR_BITS_R))-1)))) << (COLOR_BITS_R+COLOR_SHIFT_R-8))
|
|
#else // COLOR_BITS_R + COLOR_SHIFT_R < 8
|
|
#define RED_OF(c) (((c) & (((1<<COLOR_BITS_R)-1) << COLOR_SHIFT_R)) << (8-(COLOR_BITS_R+COLOR_SHIFT_R)))
|
|
#define RGB2COLOR_R(r) (((COLOR_TYPE)((r) & (0xFF & ~((1<<(8-COLOR_BITS_R))-1)))) >> (8-(COLOR_BITS_R+COLOR_SHIFT_R)))
|
|
#endif
|
|
#if COLOR_BITS_G + COLOR_SHIFT_G == 8
|
|
#define GREEN_OF(c) ((c) & (((1<<COLOR_BITS_G)-1) << COLOR_SHIFT_G))
|
|
#define RGB2COLOR_G(g) ((COLOR_TYPE)((g) & (0xFF & ~((1<<(8-COLOR_BITS_G))-1))))
|
|
#elif COLOR_BITS_G + COLOR_SHIFT_G > 8
|
|
#define GREEN_OF(c) (((c) & (((1<<COLOR_BITS_G)-1) << COLOR_SHIFT_G)) >> (COLOR_BITS_G+COLOR_SHIFT_G-8))
|
|
#define RGB2COLOR_G(g) (((COLOR_TYPE)((g) & (0xFF & ~((1<<(8-COLOR_BITS_G))-1)))) << (COLOR_BITS_G+COLOR_SHIFT_G-8))
|
|
#else // COLOR_BITS_G + COLOR_SHIFT_G < 8
|
|
#define GREEN_OF(c) (((c) & (((1<<COLOR_BITS_G)-1) << COLOR_SHIFT_G)) << (8-(COLOR_BITS_G+COLOR_SHIFT_G)))
|
|
#define RGB2COLOR_G(g) (((COLOR_TYPE)((g) & (0xFF & ~((1<<(8-COLOR_BITS_G))-1)))) >> (8-(COLOR_BITS_G+COLOR_SHIFT_G)))
|
|
#endif
|
|
#if COLOR_BITS_B + COLOR_SHIFT_B == 8
|
|
#define BLUE_OF(c) ((c) & (((1<<COLOR_BITS_B)-1) << COLOR_SHIFT_B))
|
|
#define RGB2COLOR_B(b) ((COLOR_TYPE)((b) & (0xFF & ~((1<<(8-COLOR_BITS_B))-1))))
|
|
#elif COLOR_BITS_B + COLOR_SHIFT_B > 8
|
|
#define BLUE_OF(c) (((c) & (((1<<COLOR_BITS_B)-1) << COLOR_SHIFT_B)) >> (COLOR_BITS_B+COLOR_SHIFT_B-8))
|
|
#define RGB2COLOR_B(b) (((COLOR_TYPE)((b) & (0xFF & ~((1<<(8-COLOR_BITS_B))-1)))) << (COLOR_BITS_B+COLOR_SHIFT_B-8))
|
|
#else // COLOR_BITS_B + COLOR_SHIFT_B < 8
|
|
#define BLUE_OF(c) (((c) & (((1<<COLOR_BITS_B)-1) << COLOR_SHIFT_B)) << (8-(COLOR_BITS_B+COLOR_SHIFT_B)))
|
|
#define RGB2COLOR_B(b) (((COLOR_TYPE)((b) & (0xFF & ~((1<<(8-COLOR_BITS_B))-1)))) >> (8-(COLOR_BITS_B+COLOR_SHIFT_B)))
|
|
#endif
|
|
#define LUMA_OF(c) ((RED_OF(c)+((gU16)GREEN_OF(c)<<1)+BLUE_OF(c))>>2)
|
|
#define EXACT_RED_OF(c) (((gU16)(((c)>>COLOR_SHIFT_R)&((1<<COLOR_BITS_R)-1))*255)/((1<<COLOR_BITS_R)-1))
|
|
#define EXACT_GREEN_OF(c) (((gU16)(((c)>>COLOR_SHIFT_G)&((1<<COLOR_BITS_G)-1))*255)/((1<<COLOR_BITS_G)-1))
|
|
#define EXACT_BLUE_OF(c) (((gU16)(((c)>>COLOR_SHIFT_B)&((1<<COLOR_BITS_B)-1))*255)/((1<<COLOR_BITS_B)-1))
|
|
#define EXACT_LUMA_OF(c) ((EXACT_RED_OF(c)+((gU16)EXACT_GREEN_OF(c)<<1)+EXACT_BLUE_OF(c))>>2)
|
|
#define LUMA2COLOR(l) (RGB2COLOR_R(l) | RGB2COLOR_G(l) | RGB2COLOR_B(l))
|
|
#define RGB2COLOR(r,g,b) (RGB2COLOR_R(r) | RGB2COLOR_G(g) | RGB2COLOR_B(b))
|
|
|
|
// Calculate HTML2COLOR
|
|
#if COLOR_BITS_R + COLOR_SHIFT_R == 24
|
|
#define HTML2COLOR_R(h) ((h) & ((0xFFL & ~((1<<(8-COLOR_BITS_R))-1))<<16))
|
|
#elif COLOR_BITS_R + COLOR_SHIFT_R > 24
|
|
#define HTML2COLOR_R(h) (((h) & ((0xFFL & ~((1<<(8-COLOR_BITS_R))-1))<<16)) << (COLOR_BITS_R+COLOR_SHIFT_R-24))
|
|
#else // COLOR_BITS_R + COLOR_SHIFT_R < 24
|
|
#define HTML2COLOR_R(h) (((h) & ((0xFFL & ~((1<<(8-COLOR_BITS_R))-1))<<16)) >> (24-(COLOR_BITS_R+COLOR_SHIFT_R)))
|
|
#endif
|
|
#if COLOR_BITS_G + COLOR_SHIFT_G == 16
|
|
#define HTML2COLOR_G(h) ((h) & ((0xFFL & ~((1<<(8-COLOR_BITS_G))-1))<<8))
|
|
#elif COLOR_BITS_G + COLOR_SHIFT_G > 16
|
|
#define HTML2COLOR_G(h) (((h) & ((0xFFL & ~((1<<(8-COLOR_BITS_G))-1))<<8)) << (COLOR_BITS_G+COLOR_SHIFT_G-16))
|
|
#else // COLOR_BITS_G + COLOR_SHIFT_G < 16
|
|
#define HTML2COLOR_G(h) (((h) & ((0xFFL & ~((1<<(8-COLOR_BITS_G))-1))<<8)) >> (16-(COLOR_BITS_G+COLOR_SHIFT_G)))
|
|
#endif
|
|
#if COLOR_BITS_B + COLOR_SHIFT_B == 8
|
|
#define HTML2COLOR_B(h) ((h) & (0xFFL & ~((1<<(8-COLOR_BITS_B))-1)))
|
|
#elif COLOR_BITS_B + COLOR_SHIFT_B > 8
|
|
#define HTML2COLOR_B(h) (((h) & (0xFFL & ~((1<<(8-COLOR_BITS_B))-1))) << (COLOR_BITS_B+COLOR_SHIFT_B-8))
|
|
#else // COLOR_BITS_B + COLOR_SHIFT_B < 8
|
|
#define HTML2COLOR_B(h) (((h) & (0xFFL & ~((1<<(8-COLOR_BITS_B))-1))) >> (8-(COLOR_BITS_B+COLOR_SHIFT_B)))
|
|
#endif
|
|
#define HTML2COLOR(h) ((COLOR_TYPE)(HTML2COLOR_R(h) | HTML2COLOR_G(h) | HTML2COLOR_B(h)))
|
|
|
|
// Special hack to allow alpha on RGB888
|
|
#if GDISP_PIXELFORMAT == GDISP_PIXELFORMAT_RGB888
|
|
#define COLOR_BITS_A 8
|
|
#define COLOR_SHIFT_A 24
|
|
#define ALPHA_OF(c) (((c)>>24) ^ 0xFF)
|
|
#define EXACT_ALPHA_OF(c) ALPHA_OF((c))
|
|
#define AHTML2COLOR(h) ((h) ^ 0xFF000000)
|
|
#define RGB2COLOR_A(a) (((COLOR_TYPE)(((a) ^ 0xFF) & 0xFF)) << 24)
|
|
#define ARGB2COLOR(a,r,g,b) (RGB2COLOR_A(a) | RGB2COLOR_R(r) | RGB2COLOR_G(g) | RGB2COLOR_B(b))
|
|
#define GFXTRANSPARENT (0xFF000000)
|
|
#endif
|
|
|
|
//-------------------------
|
|
// Gray-scale color system
|
|
//-------------------------
|
|
#elif (GDISP_PIXELFORMAT & GDISP_COLORSYSTEM_MASK) == GDISP_COLORSYSTEM_GRAYSCALE
|
|
#define COLOR_SYSTEM GDISP_COLORSYSTEM_GRAYSCALE
|
|
|
|
// Calculate the number of bits and shifts
|
|
#define COLOR_BITS (GDISP_PIXELFORMAT & 0xFF)
|
|
#define COLOR_BITS_R COLOR_BITS
|
|
#define COLOR_BITS_G COLOR_BITS
|
|
#define COLOR_BITS_B COLOR_BITS
|
|
#define COLOR_SHIFT_R 0
|
|
#define COLOR_SHIFT_G 0
|
|
#define COLOR_SHIFT_B 0
|
|
|
|
// From the number of bits determine COLOR_TYPE, COLOR_TYPE_BITS and masking
|
|
#if COLOR_BITS <= 8
|
|
#define COLOR_TYPE gU8
|
|
#define COLOR_TYPE_BITS 8
|
|
#else
|
|
#error "GDISP: Cannot define gray-scale color types with more than 8 bits"
|
|
#endif
|
|
#if COLOR_TYPE_BITS == COLOR_BITS
|
|
#define COLOR_NEEDS_MASK GFXOFF
|
|
#else
|
|
#define COLOR_NEEDS_MASK GFXON
|
|
#endif
|
|
#define COLOR_MASK() ((1 << COLOR_BITS)-1)
|
|
|
|
#if COLOR_BITS == 1
|
|
#define RGB2COLOR(r,g,b) (((r)|(g)|(b)) ? 1 : 0)
|
|
#define LUMA2COLOR(l) ((l) ? 1 : 0)
|
|
#define HTML2COLOR(h) ((h) ? 1 : 0)
|
|
#define LUMA_OF(c) ((c) ? 255 : 0)
|
|
#define EXACT_LUMA_OF(c) LUMA_OF(c)
|
|
#else
|
|
// They eye is more sensitive to green
|
|
#define RGB2COLOR(r,g,b) ((COLOR_TYPE)(((gU16)(r)+(g)+(g)+(b)) >> (10-COLOR_BITS)))
|
|
#define LUMA2COLOR(l) ((COLOR_TYPE)((l)>>(8-COLOR_BITS)))
|
|
#define HTML2COLOR(h) ((COLOR_TYPE)(((((h)&0xFF0000)>>16)+(((h)&0x00FF00)>>7)+((h)&0x0000FF)) >> (10-COLOR_BITS)))
|
|
#define LUMA_OF(c) (((c) & ((1<<COLOR_BITS)-1)) << (8-COLOR_BITS))
|
|
#define EXACT_LUMA_OF(c) ((((gU16)(c) & ((1<<COLOR_BITS)-1))*255)/((1<<COLOR_BITS)-1))
|
|
#endif
|
|
|
|
#define RED_OF(c) LUMA_OF(c)
|
|
#define GREEN_OF(c) LUMA_OF(c)
|
|
#define BLUE_OF(c) LUMA_OF(c)
|
|
#define EXACT_RED_OF(c) EXACT_LUMA_OF(c)
|
|
#define EXACT_GREEN_OF(c) EXACT_LUMA_OF(c)
|
|
#define EXACT_BLUE_OF(c) EXACT_LUMA_OF(c)
|
|
|
|
//-------------------------
|
|
// Palette color system
|
|
//-------------------------
|
|
#elif (GDISP_PIXELFORMAT & GDISP_COLORSYSTEM_MASK) == GDISP_COLORSYSTEM_PALETTE
|
|
#define COLOR_SYSTEM GDISP_COLORSYSTEM_PALETTE
|
|
|
|
#error "GDISP: A palette color system is not currently supported"
|
|
|
|
//-------------------------
|
|
// Some other color system
|
|
//-------------------------
|
|
#else
|
|
#error "GDISP: Unsupported color system"
|
|
#endif
|
|
|
|
/**
|
|
* @brief The color type definition
|
|
*/
|
|
typedef COLOR_TYPE gColor;
|
|
|
|
#endif /* GFX_USE_GDISP */
|
|
|
|
#endif /* _GDISP_COLORS_H */
|
|
/** @} */
|