LCOM1920-T5G03

#ifndef GRAPH_H_INCLUDED

#define GRAPH_H_INCLUDED

/**

 * @defgroup    graph   graph

 * @brief Graph module.

 *

 * Provides functions, classes and methods for graphic drawing.

 *

 * @{

 */

// Graphics modes

#define INDEXED_1024_768        0x105

#define DIRECT_640_480_888      0x110

#define DIRECT_800_600_888      0x115

#define DIRECT_1024_768_888     0x118

#define DIRECT_1280_1024_565    0x11A

#define DIRECT_1280_1024_888    0x11B

#define LINEAR_FRAME_BUFFER_MD  BIT(14)

// Colors in RBG (8 bit)

#define GRAPH_BLACK             0x000000

#define GRAPH_WHITE             0xFFFFFF

#define GRAPH_TRANSPARENT       0x00

#define GRAPH_RED               0xFF0000

// Alpha

#define ALPHA_THRESHOLD     0x7F

// MACROS

#define GET_ALP(n)          (0xFF & ((n) >> 24))

#define GET_RED(n)          (0xFF & ((n) >> 16))

#define GET_GRE(n)          (0xFF & ((n) >>  8))

#define GET_BLU(n)          (0xFF & (n      ))

#define GET_COLOR(n)        (0xFFFFFF & (n))

#define SET_ALP(n)          (((n)&0xFF) << 24)

#define SET_RED(n)          (((n)&0xFF) << 16)

#define SET_GRE(n)          (((n)&0xFF) <<  8)

#define SET_BLU(n)          (((n)&0xFF)      )

#define SET_RGB(r,g,b)      (SET_RED(r) | SET_GRE(g) | SET_BLU(b))

/**

 * @brief Initialize graphics.

 * @param   mode    Graphics mode to use

 * @return  SUCCESS if operation was successful, other value otherwise

 */

int (graph_init)(uint16_t mode);

/**

 * @brief Cleanup graphics.

 * @return  SUCCESS if operation was successful, other value otherwise

 */

int (graph_cleanup)(void);

/**

 * @brief Get screen X-resolution.

 * @return Screen X-resolution

 */

uint16_t   (graph_get_XRes)         (void);

/**

 * @brief Get screen Y-resolution.

 * @return Screen Y-resolution

 */

uint16_t   (graph_get_YRes)         (void);

/**

 * @brief Get number of bytes per pixel.

 *

 * That is, the number of bytes needed to encode the color of a pixel.

 * @return Number of bytes per pixel

 */

uint16_t   (graph_get_bytes_pixel)  (void);

/**

 * @brief Draw pixel with color.

 * @param   x       X-position of pixel to draw

 * @param   y       Y-position of pixel to draw

 * @param   color   Color that will be used to draw the pixel

 * @return  SUCCESS if operation was successful, other value otherwise

 */

void (graph_set_pixel)             (uint16_t x, uint16_t y, uint32_t color);

/**

 * @brief Draw pixel with color using position.

 *

 * Position is calculated from y*WIDTH+x.

 * @param   pos     Position

 * @param   color   Color that will be used to draw the pixel

 */

void (graph_set_pixel_pos)         (unsigned pos          , uint32_t color);

// SCREEN

int (graph_clear_screen)(void);

// DRAW

int (graph_draw)(void);

/**

 * @}

 */

#endif /* end of include guard: GRAPH_H_INCLUDED */