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https://github.com/CTCaer/hekate.git
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185526d134
BDK will allow developers to use the full collection of drivers, with limited editing, if any, for making payloads for Nintendo Switch. Using a single source for everything will also help decoupling Switch specific code and easily port it to other Tegra X1/X1+ platforms. And maybe even to lower targets. Everything is now centrilized into bdk folder. Every module or project can utilize it by simply including it. This is just the start and it will continue to improve.
229 lines
6.9 KiB
C
229 lines
6.9 KiB
C
/**
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* @file lv_canvas.h
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*
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*/
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#ifndef LV_CANVAS_H
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#define LV_CANVAS_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/*********************
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* INCLUDES
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*********************/
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#ifdef LV_CONF_INCLUDE_SIMPLE
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#include "lv_conf.h"
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#else
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#include "../../lv_conf.h"
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#endif
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#if USE_LV_CANVAS != 0
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#include "../lv_core/lv_obj.h"
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#include "../lv_objx/lv_img.h"
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/*********************
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* DEFINES
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*********************/
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/**********************
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* TYPEDEFS
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**********************/
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/*Data of canvas*/
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typedef struct {
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lv_img_ext_t img; /*Ext. of ancestor*/
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/*New data for this type */
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lv_img_dsc_t dsc;
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} lv_canvas_ext_t;
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/*Styles*/
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enum {
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LV_CANVAS_STYLE_MAIN,
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};
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typedef uint8_t lv_canvas_style_t;
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/**********************
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* GLOBAL PROTOTYPES
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**********************/
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/**
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* Create a canvas object
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* @param par pointer to an object, it will be the parent of the new canvas
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* @param copy pointer to a canvas object, if not NULL then the new object will be copied from it
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* @return pointer to the created canvas
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*/
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lv_obj_t * lv_canvas_create(lv_obj_t * par, const lv_obj_t * copy);
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/*=====================
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* Setter functions
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*====================*/
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/**
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* Set a buffer for the canvas.
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* @param buf a buffer where the content of the canvas will be.
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* The required size is (lv_img_color_format_get_px_size(cf) * w * h) / 8)
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* It can be allocated with `lv_mem_alloc()` or
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* it can be statically allocated array (e.g. static lv_color_t buf[100*50]) or
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* it can be an address in RAM or external SRAM
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* @param canvas pointer to a canvas object
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* @param w width of the canvas
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* @param h height of the canvas
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* @param cf color format. The following formats are supported:
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* LV_IMG_CF_TRUE_COLOR, LV_IMG_CF_TRUE_COLOR_CHROMA_KEYED, LV_IMG_CF_INDEXES_1/2/4/8BIT
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*/
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void lv_canvas_set_buffer(lv_obj_t * canvas, void * buf, lv_coord_t w, lv_coord_t h, lv_img_cf_t cf);
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/**
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* Set the color of a pixel on the canvas
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* @param canvas
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* @param x x coordinate of the point to set
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* @param y x coordinate of the point to set
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* @param c color of the point
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*/
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void lv_canvas_set_px(lv_obj_t * canvas, lv_coord_t x, lv_coord_t y, lv_color_t c);
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/**
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* Set a style of a canvas.
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* @param canvas pointer to canvas object
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* @param type which style should be set
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* @param style pointer to a style
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*/
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void lv_canvas_set_style(lv_obj_t * canvas, lv_canvas_style_t type, lv_style_t * style);
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/*=====================
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* Getter functions
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*====================*/
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/**
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* Get the color of a pixel on the canvas
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* @param canvas
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* @param x x coordinate of the point to set
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* @param y x coordinate of the point to set
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* @return color of the point
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*/
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lv_color_t lv_canvas_get_px(lv_obj_t * canvas, lv_coord_t x, lv_coord_t y);
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/**
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* Get style of a canvas.
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* @param canvas pointer to canvas object
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* @param type which style should be get
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* @return style pointer to the style
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*/
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lv_style_t * lv_canvas_get_style(const lv_obj_t * canvas, lv_canvas_style_t type);
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/*=====================
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* Other functions
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*====================*/
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/**
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* Copy a buffer to the canvas
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* @param canvas pointer to a canvas object
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* @param to_copy buffer to copy. The color format has to match with the canvas's buffer color format
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* @param w width of the buffer to copy
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* @param h height of the buffer to copy
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* @param x left side of the destination position
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* @param y top side of the destination position
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*/
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void lv_canvas_copy_buf(lv_obj_t * canvas, const void * to_copy, lv_coord_t w, lv_coord_t h, lv_coord_t x, lv_coord_t y);
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/**
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* Multiply a buffer with the canvas
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* @param canvas pointer to a canvas object
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* @param to_copy buffer to copy (multiply). LV_IMG_CF_TRUE_COLOR_ALPHA is not supported
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* @param w width of the buffer to copy
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* @param h height of the buffer to copy
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* @param x left side of the destination position
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* @param y top side of the destination position
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*/
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void lv_canvas_mult_buf(lv_obj_t * canvas, void * to_copy, lv_coord_t w, lv_coord_t h, lv_coord_t x, lv_coord_t y);
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/**
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* Draw circle function of the canvas
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* @param canvas pointer to a canvas object
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* @param x0 x coordinate of the circle
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* @param y0 y coordinate of the circle
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* @param radius radius of the circle
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* @param color border color of the circle
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*/
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void lv_canvas_draw_circle(lv_obj_t * canvas, lv_coord_t x0, lv_coord_t y0, lv_coord_t radius, lv_color_t color);
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/**
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* Draw line function of the canvas
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* @param canvas pointer to a canvas object
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* @param point1 start point of the line
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* @param point2 end point of the line
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* @param color color of the line
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*
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* NOTE: The lv_canvas_draw_line function originates from https://github.com/jb55/bresenham-line.c.
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*/
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void lv_canvas_draw_line(lv_obj_t * canvas, lv_point_t point1, lv_point_t point2, lv_color_t color);
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/**
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* Draw triangle function of the canvas
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* @param canvas pointer to a canvas object
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* @param points edge points of the triangle
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* @param color line color of the triangle
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*/
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void lv_canvas_draw_triangle(lv_obj_t * canvas, lv_point_t * points, lv_color_t color);
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/**
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* Draw rectangle function of the canvas
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* @param canvas pointer to a canvas object
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* @param points edge points of the rectangle
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* @param color line color of the rectangle
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*/
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void lv_canvas_draw_rect(lv_obj_t * canvas, lv_point_t * points, lv_color_t color);
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/**
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* Draw polygon function of the canvas
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* @param canvas pointer to a canvas object
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* @param points edge points of the polygon
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* @param size edge count of the polygon
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* @param color line color of the polygon
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*/
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void lv_canvas_draw_polygon(lv_obj_t * canvas, lv_point_t * points, size_t size, lv_color_t color);
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/**
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* Fill polygon function of the canvas
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* @param canvas pointer to a canvas object
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* @param points edge points of the polygon
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* @param size edge count of the polygon
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* @param boundary_color line color of the polygon
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* @param fill_color fill color of the polygon
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*/
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void lv_canvas_fill_polygon(lv_obj_t * canvas, lv_point_t * points, size_t size, lv_color_t boundary_color, lv_color_t fill_color);
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/**
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* Boundary fill function of the canvas
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* @param canvas pointer to a canvas object
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* @param x x coordinate of the start position (seed)
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* @param y y coordinate of the start position (seed)
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* @param boundary_color edge/boundary color of the area
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* @param fill_color fill color of the area
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*/
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void lv_canvas_boundary_fill4(lv_obj_t * canvas, lv_coord_t x, lv_coord_t y, lv_color_t boundary_color, lv_color_t fill_color);
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/**
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* Flood fill function of the canvas
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* @param canvas pointer to a canvas object
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* @param x x coordinate of the start position (seed)
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* @param y y coordinate of the start position (seed)
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* @param fill_color fill color of the area
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* @param bg_color background color of the area
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*/
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void lv_canvas_flood_fill(lv_obj_t * canvas, lv_coord_t x, lv_coord_t y, lv_color_t fill_color, lv_color_t bg_color);
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/**********************
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* MACROS
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**********************/
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#endif /*USE_LV_CANVAS*/
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /*LV_CANVAS_H*/
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