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lv_canvas: comment update

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This commit is contained in:
Gabor Kiss-Vamosi
2019-01-31 19:39:57 +01:00
parent ed8ec4a4c2
commit 078bc96b77
2 changed files with 19 additions and 20 deletions
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28
lv_objx/lv_canvas.c
View File

@@ -273,8 +273,7 @@ void lv_canvas_mult_buf(lv_obj_t * canvas, void * to_copy, lv_coord_t w, lv_coor
* @param w width of the canvas
* @param h height of the canvas
* @param cf color format. The following formats are supported:
* LV_IMG_CF_TRUE_COLOR, LV_IMG_CF_TRUE_COLOR_ALPHA, LV_IMG_CF_TRUE_COLOR_CHROMA_KEYED
*
* LV_IMG_CF_TRUE_COLOR, LV_IMG_CF_TRUE_COLOR_ALPHA, LV_IMG_CF_TRUE_COLOR_CHROMA_KEYED, LV_IMG_CF_INDEXED_1/2/4/8BIT
*/
void lv_canvas_set_buffer(lv_obj_t * canvas, void * buf, lv_coord_t w, lv_coord_t h, lv_img_cf_t cf)
{
@@ -379,8 +378,6 @@ void lv_canvas_draw_circle(lv_obj_t * canvas, lv_coord_t x0, lv_coord_t y0, lv_c
* @param point1 start point of the line
* @param point2 end point of the line
* @param color color of the line
*
* NOTE: The lv_canvas_draw_line function originates from https://github.com/jb55/bresenham-line.c.
*/
/*
* NOTE: The lv_canvas_draw_line function originates from https://github.com/jb55/bresenham-line.c.
@@ -399,6 +396,7 @@ void lv_canvas_draw_line(lv_obj_t * canvas, lv_point_t point1, lv_point_t point2
int err = (dx>dy ? dx : -dy)/2, e2;
for(;;){
// setPixel(x0,y0);
lv_canvas_set_px(canvas, x0, y0, color);
if (x0==x1 && y0==y1) break;
@@ -453,10 +451,10 @@ void lv_canvas_draw_polygon(lv_obj_t * canvas, lv_point_t * points, size_t size,
* @param canvas pointer to a canvas object
* @param points edge points of the polygon
* @param size edge count of the polygon
* @param boundary_color line color of the polygon
* @param fill_color fill color of the polygon
* @param color line color of the polygon
* @param bg_color background color of the polygon
*/
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)
void lv_canvas_fill_polygon(lv_obj_t * canvas, lv_point_t * points, size_t size, lv_color_t color, lv_color_t bg_color)
{
uint32_t x = 0, y = 0;
uint8_t i;
@@ -469,7 +467,8 @@ void lv_canvas_fill_polygon(lv_obj_t * canvas, lv_point_t * points, size_t size,
x = x / size;
y = y / size;
lv_canvas_boundary_fill4(canvas, (lv_coord_t) x, (lv_coord_t) y, boundary_color, fill_color);
// lv_canvas_flood_fill(canvas, (lv_coord_t) x, (lv_coord_t) y, color, bg_color);
lv_canvas_boundary_fill4(canvas, (lv_coord_t) x, (lv_coord_t) y, color, color);
}
/**
@@ -477,10 +476,10 @@ void lv_canvas_fill_polygon(lv_obj_t * canvas, lv_point_t * points, size_t size,
* @param canvas pointer to a canvas object
* @param x x coordinate of the start position (seed)
* @param y y coordinate of the start position (seed)
* @param boundary_color edge/boundary color of the area
* @param fill_color fill color of the area
* @param boundary_color edge/boundary color of the area
*/
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)
void lv_canvas_boundary_fill4(lv_obj_t * canvas, lv_coord_t x, lv_coord_t y, lv_color_t fill_color, lv_color_t boundary_color)
{
lv_color_t c;
@@ -489,12 +488,13 @@ void lv_canvas_boundary_fill4(lv_obj_t * canvas, lv_coord_t x, lv_coord_t y, lv_
if(c.full != boundary_color.full &&
c.full != fill_color.full)
{
// putpixel(x, y, fill_color);
lv_canvas_set_px(canvas, x, y, fill_color);
lv_canvas_boundary_fill4(canvas, x + 1, y, boundary_color, fill_color);
lv_canvas_boundary_fill4(canvas, x, y + 1, boundary_color, fill_color);
lv_canvas_boundary_fill4(canvas, x - 1, y, boundary_color, fill_color);
lv_canvas_boundary_fill4(canvas, x, y - 1, boundary_color, fill_color);
lv_canvas_boundary_fill4(canvas, x + 1, y, fill_color, boundary_color);
lv_canvas_boundary_fill4(canvas, x, y + 1, fill_color, boundary_color);
lv_canvas_boundary_fill4(canvas, x - 1, y, fill_color, boundary_color);
lv_canvas_boundary_fill4(canvas, x, y - 1, fill_color, boundary_color);
}
}

9
lv_objx/lv_canvas.h
View File

@@ -108,17 +108,16 @@ void lv_canvas_mult_buf(lv_obj_t * canvas, void * to_copy, lv_coord_t w, lv_coor
/**
* Set a buffer for the canvas.
* @param buf a buffer where the contant of the canvas will be.
* @param buf a buffer where the content of the canvas will be.
* The required size is (lv_img_color_format_get_px_size(cf) * w * h) / 8)
* It can be allocated with `lv_mem_alloc()` or
* it can be statically allocated array (e.g. static lv_color_t buf[100*50]) or
* it can be an address in RAM or external SRAM
* @param canvas pointer to a canvas obejct
* @param canvas pointer to a canvas object
* @param w width of the canvas
* @param h hight of the canvas
* @param h height of the canvas
* @param cf color format. The following formats are supported:
* LV_IMG_CF_TRUE_COLOR, LV_IMG_CF_TRUE_COLOR_ALPHA, LV_IMG_CF_TRUE_COLOR_CHROMA_KEYED
*
* LV_IMG_CF_TRUE_COLOR, LV_IMG_CF_TRUE_COLOR_ALPHA, LV_IMG_CF_TRUE_COLOR_CHROMA_KEYED, LV_IMG_CF_INDEXED_1/2/4/8BIT
*/
void lv_canvas_set_buffer(lv_obj_t * canvas, void * buf, lv_coord_t w, lv_coord_t h, lv_img_cf_t cf);