blob: aae217df69da3ce5d25f33b9f9b34c26da3ee6f3 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
#ifndef UPEM_MORPHING_CANVAS
#define UPEM_MORPHING_CANVAS
/**
* File: canvas.h
*
* See also:
* Freedom, according to Bob Ross
*/
#include <MLV/MLV_image.h>
#include "common/geom.h"
#include "color.h"
/**
* Type: Canvas
* Represents a fixed size RGBa pixel matrix.
*/
typedef struct {
MLV_Image *mlv;
} Canvas;
/**
* Function: canvas_init
* Initialises a canvas of the given size
*
* Parameters:
* *canvas - the canvas to initialise
* width - the width in pixels
* height - the height in pixels
*/
void canvas_init(Canvas *canvas, IntVector width, IntVector height);
/**
* Function: canvas_free
* Frees all memory allocated to a canvas.
*
* Parameters:
* *canvas - the canvas to destroy
*/
void canvas_free(Canvas *canvas);
/**
* Function: canvas_set_pixel
* Sets the pixel colour at the given coordinates.
*
* Parameters:
* *canvas - the canvas to alter
* position - the cartesian coordinates of the pixel to set
* color - the new colour to set
*/
void canvas_set_pixel(Canvas *canvas, CartesianVector position, Color color);
/**
* Function: canvas_get_pixel
* Returns the colour of the pixel at the given position.
*
* Parameters:
* *canvas - the base canvas
* position - the position in cartesian coordinates
*
* Returns:
* The colour of the requested pixel
*/
Color canvas_get_pixel(Canvas *canvas, CartesianVector position);
/**
* Function: canvas_get_dim
* Returns the size (in pixels) of the given canvas.
*
* Parameters:
* *canvas - the canvas
*
* Returns:
* The size of the canvas
*/
CartesianVector canvas_get_dim(Canvas *canvas);
#endif
|