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-rw-r--r--include/blender/canvas.h79
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diff --git a/include/blender/canvas.h b/include/blender/canvas.h
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1#ifndef UPEM_MORPHING_CANVAS
2#define UPEM_MORPHING_CANVAS
3
4/**
5 * File: canvas.h
6 *
7 * See also:
8 * Freedom, according to Bob Ross
9 */
10
11#include <MLV/MLV_image.h>
12#include "common/geom.h"
13#include "color.h"
14
15/**
16 * Type: Canvas
17 * Represents a fixed size RGBa pixel matrix.
18 */
19typedef struct {
20 MLV_Image *mlv;
21} Canvas;
22
23/**
24 * Function: canvas_init
25 * Initialises a canvas of the given size
26 *
27 * Parameters:
28 * *canvas - the canvas to initialise
29 * width - the width in pixels
30 * height - the height in pixels
31 */
32void canvas_init(Canvas *canvas, IntVector width, IntVector height);
33
34/**
35 * Function: canvas_free
36 * Frees all memory allocated to a canvas.
37 *
38 * Parameters:
39 * *canvas - the canvas to destroy
40 */
41void canvas_free(Canvas *canvas);
42
43/**
44 * Function: canvas_set_pixel
45 * Sets the pixel colour at the given coordinates.
46 *
47 * Parameters:
48 * *canvas - the canvas to alter
49 * position - the cartesian coordinates of the pixel to set
50 * color - the new colour to set
51 */
52void canvas_set_pixel(Canvas *canvas, CartesianVector position, Color color);
53
54/**
55 * Function: canvas_get_pixel
56 * Returns the colour of the pixel at the given position.
57 *
58 * Parameters:
59 * *canvas - the base canvas
60 * position - the position in cartesian coordinates
61 *
62 * Returns:
63 * The colour of the requested pixel
64 */
65Color canvas_get_pixel(Canvas *canvas, CartesianVector position);
66
67/**
68 * Function: canvas_get_dim
69 * Returns the size (in pixels) of the given canvas.
70 *
71 * Parameters:
72 * *canvas - the canvas
73 *
74 * Returns:
75 * The size of the canvas
76 */
77CartesianVector canvas_get_dim(Canvas *canvas);
78
79#endif