Color coding

Predefined colors.

Predefined colors.

Color coding depends on the LCD hardware.

The following color names are predefined (values need to be defined by the driver):

• GLCD_COLOR_BLACK
• GLCD_COLOR_NAVY
• GLCD_COLOR_DARK_GREEN
• GLCD_COLOR_DARK_CYAN
• GLCD_COLOR_MAROON
• GLCD_COLOR_PURPLE
• GLCD_COLOR_OLIVE
• GLCD_COLOR_LIGHT_GREY
• GLCD_COLOR_DARK_GREY
• GLCD_COLOR_BLUE
• GLCD_COLOR_GREEN
• GLCD_COLOR_CYAN
• GLCD_COLOR_RED
• GLCD_COLOR_MAGENTA
• GLCD_COLOR_YELLOW
• GLCD_COLOT_WHITE

Example: RGB565 encoding

/* Color coding (16-bit): 
     15..11 = R4..0 (Red)
     10..5  = G5..0 (Green)
      4..0  = B4..0 (Blue)
*/
 
/* GLCD RGB color definitions                            */
#define GLCD_COLOR_BLACK        0x0000  /*   0,   0,   0 */
#define GLCD_COLOR_NAVY         0x000F  /*   0,   0, 128 */
#define GLCD_COLOR_DARK_GREEN   0x03E0  /*   0, 128,   0 */
#define GLCD_COLOR_DARK_CYAN    0x03EF  /*   0, 128, 128 */
#define GLCD_COLOR_MAROON       0x7800  /* 128,   0,   0 */
#define GLCD_COLOR_PURPLE       0x780F  /* 128,   0, 128 */
#define GLCD_COLOR_OLIVE        0x7BE0  /* 128, 128,   0 */
#define GLCD_COLOR_LIGHT_GREY   0xC618  /* 192, 192, 192 */
#define GLCD_COLOR_DARK_GREY    0x7BEF  /* 128, 128, 128 */
#define GLCD_COLOR_BLUE         0x001F  /*   0,   0, 255 */
#define GLCD_COLOR_GREEN        0x07E0  /*   0, 255,   0 */
#define GLCD_COLOR_CYAN         0x07FF  /*   0, 255, 255 */
#define GLCD_COLOR_RED          0xF800  /* 255,   0,   0 */
#define GLCD_COLOR_MAGENTA      0xF81F  /* 255,   0, 255 */
#define GLCD_COLOR_YELLOW       0xFFE0  /* 255, 255, 0   */
#define GLCD_COLOR_WHITE        0xFFFF  /* 255, 255, 255 */