aboutsummaryrefslogtreecommitdiff
path: root/pixman/test/gradient-crash-test.c
blob: 962d1cbe8d098d85da9cca4afb73e671915a5e24 (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
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
#include <stdio.h>
#include <stdlib.h>
#include "utils.h"

int
main (int argc, char **argv)
{
#define WIDTH 400
#define HEIGHT 200
    
    uint32_t *dest = malloc (WIDTH * HEIGHT * 4);
    pixman_image_t *src_img;
    pixman_image_t *dest_img;
    int i, j, k, p;

    typedef struct
    {
	pixman_point_fixed_t p0;
	pixman_point_fixed_t p1;
    } point_pair_t;
    
    pixman_gradient_stop_t onestop[1] =
	{
	    { pixman_int_to_fixed (1), { 0xffff, 0xeeee, 0xeeee, 0xeeee } },
	};

    pixman_gradient_stop_t subsetstops[2] =
	{
	    { pixman_int_to_fixed (1), { 0xffff, 0xeeee, 0xeeee, 0xeeee } },
	    { pixman_int_to_fixed (1), { 0xffff, 0xeeee, 0xeeee, 0xeeee } },
	};

    pixman_gradient_stop_t stops01[2] =
	{
	    { pixman_int_to_fixed (0), { 0xffff, 0xeeee, 0xeeee, 0xeeee } },
	    { pixman_int_to_fixed (1), { 0xffff, 0x1111, 0x1111, 0x1111 } }
	};

    point_pair_t point_pairs [] =
	{ { { pixman_double_to_fixed (0), 0 },
	    { pixman_double_to_fixed (WIDTH / 8.), pixman_int_to_fixed (0) } },
	  { { pixman_double_to_fixed (WIDTH / 2.0), pixman_double_to_fixed (HEIGHT / 2.0) },
	    { pixman_double_to_fixed (WIDTH / 2.0), pixman_double_to_fixed (HEIGHT / 2.0) } }
	};
    
    pixman_transform_t transformations[] = {
	{
	    { { pixman_double_to_fixed (2), pixman_double_to_fixed (0.5), pixman_double_to_fixed (-100), },
	      { pixman_double_to_fixed (0), pixman_double_to_fixed (3), pixman_double_to_fixed (0), },
	      { pixman_double_to_fixed (0), pixman_double_to_fixed (0.000), pixman_double_to_fixed (1.0) } 
	    }
	},
	{
	    { { pixman_double_to_fixed (1), pixman_double_to_fixed (0), pixman_double_to_fixed (0), },
	      { pixman_double_to_fixed (0), pixman_double_to_fixed (1), pixman_double_to_fixed (0), },
	      { pixman_double_to_fixed (0), pixman_double_to_fixed (0.000), pixman_double_to_fixed (1.0) } 
	    }
	},
	{
	    { { pixman_double_to_fixed (2), pixman_double_to_fixed (1), pixman_double_to_fixed (0), },
	      { pixman_double_to_fixed (1), pixman_double_to_fixed (1), pixman_double_to_fixed (0), },
	      { pixman_double_to_fixed (2), pixman_double_to_fixed (1.000), pixman_double_to_fixed (1.0) } 
	    }
	},
	{
	    { { pixman_double_to_fixed (2), pixman_double_to_fixed (1), pixman_double_to_fixed (0), },
	      { pixman_double_to_fixed (1), pixman_double_to_fixed (1), pixman_double_to_fixed (0), },
	      { pixman_double_to_fixed (0), pixman_double_to_fixed (0), pixman_double_to_fixed (0) } 
	    }
	},
	{
	    { { pixman_double_to_fixed (2), pixman_double_to_fixed (1), pixman_double_to_fixed (0), },
	      { pixman_double_to_fixed (1), pixman_double_to_fixed (1), pixman_double_to_fixed (0), },
	      { pixman_double_to_fixed (2), pixman_double_to_fixed (-1), pixman_double_to_fixed (0) } 
	    }
	},
	{
	    { { pixman_double_to_fixed (2), pixman_double_to_fixed (1), pixman_double_to_fixed (3), },
	      { pixman_double_to_fixed (1), pixman_double_to_fixed (1), pixman_double_to_fixed (0), },
	      { pixman_double_to_fixed (2), pixman_double_to_fixed (-1), pixman_double_to_fixed (0) } 
	    }
	},
    };
    
    pixman_fixed_t r_inner;
    pixman_fixed_t r_outer;

    enable_divbyzero_exceptions();
    
    for (i = 0; i < WIDTH * HEIGHT; ++i)
	dest[i] = 0x4f00004f; /* pale blue */
    
    dest_img = pixman_image_create_bits (PIXMAN_a8r8g8b8,
					 WIDTH, HEIGHT, 
					 dest,
					 WIDTH * 4);

    r_inner = 0;
    r_outer = pixman_double_to_fixed (50.0);
    
    for (i = 0; i < 3; ++i)
    {
	pixman_gradient_stop_t *stops;
        int num_stops;

	if (i == 0)
	{
	    stops = onestop;
	    num_stops = ARRAY_LENGTH (onestop);
	}
	else if (i == 1)
	{
	    stops = subsetstops;
	    num_stops = ARRAY_LENGTH (subsetstops);
	}
	else
	{
	    stops = stops01;
	    num_stops = ARRAY_LENGTH (stops01);
	}
	
	for (j = 0; j < 3; ++j)
	{
	    for (p = 0; p < ARRAY_LENGTH (point_pairs); ++p)
	    {
		point_pair_t *pair = &(point_pairs[p]);

		if (j == 0)
		    src_img = pixman_image_create_conical_gradient (&(pair->p0), r_inner,
								    stops, num_stops);
		else if (j == 1)
		    src_img = pixman_image_create_radial_gradient  (&(pair->p0), &(pair->p1),
								    r_inner, r_outer,
								    stops, num_stops);
		else
		    src_img = pixman_image_create_linear_gradient  (&(pair->p0), &(pair->p1),
								    stops, num_stops);
		
		for (k = 0; k < ARRAY_LENGTH (transformations); ++k)
		{
		    pixman_image_set_transform (src_img, &transformations[k]);
		    
		    pixman_image_set_repeat (src_img, PIXMAN_REPEAT_NONE);
		    pixman_image_composite (PIXMAN_OP_OVER, src_img, NULL, dest_img,
					    0, 0, 0, 0, 0, 0, 10 * WIDTH, HEIGHT);
		}

		pixman_image_unref (src_img);
	    }

	}
    }

    pixman_image_unref (dest_img);
    free (dest);
    
    return 0;
}