flipperzero-firmware/applications/gui/canvas_i.h

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#pragma once
#include "canvas.h"
#include <u8g2.h>
struct Canvas {
u8g2_t fb;
uint8_t offset_x;
uint8_t offset_y;
uint8_t width;
uint8_t height;
};
/*
* Allocate memory and initialize canvas
*/
Canvas* canvas_init();
/*
* Free canvas memory
*/
void canvas_free(Canvas* canvas);
/*
* Reset canvas drawing tools configuration
*/
void canvas_reset(Canvas* canvas);
/*
* Commit canvas. Send buffer to display
*/
void canvas_commit(Canvas* canvas);
/*
* Get canvas buffer.
* @return pointer to buffer
*/
uint8_t* canvas_get_buffer(Canvas* canvas);
/*
* Get canvas buffer size.
* @return size of canvas in bytes
*/
size_t canvas_get_buffer_size(Canvas* canvas);
/*
* Set drawing region relative to real screen buffer
*/
void canvas_frame_set(
Canvas* canvas,
uint8_t offset_x,
uint8_t offset_y,
uint8_t width,
uint8_t height);