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
|
/*
* Copyright 2014 © Samsung Research America, Silicon Valley
*
* Use of this source code is governed by the 3-Clause BSD license
* specified in the COPYING file included with this source code.
*/
#include <config.h>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <cairo.h>
#include "caskbench.h"
#include "caskbench_context.h"
#include "cairo-shapes.h"
int
ca_setup_roundrect(caskbench_context_t *ctx)
{
cairo_t *cr = ctx->cairo_cr;
cairo_set_antialias (cr, CAIRO_ANTIALIAS_BEST);
return 1;
}
void
ca_teardown_roundrect(void)
{
}
static void
rounded_rectangle (cairo_t *cr,
double x, double y, double w, double h,
double radius)
{
cairo_move_to (cr, x+radius, y);
cairo_arc (cr, x+w-radius, y+radius, radius, M_PI + M_PI / 2, M_PI * 2 );
cairo_arc (cr, x+w-radius, y+h-radius, radius, 0, M_PI / 2 );
cairo_arc (cr, x+radius, y+h-radius, radius, M_PI/2, M_PI );
cairo_arc (cr, x+radius, y+radius, radius, M_PI, 270 * M_PI / 180);
}
int
ca_test_roundrect(caskbench_context_t *ctx)
{
int i;
double line_width, x, y, radius;
cairo_t *cr = ctx->cairo_cr;
for (i=0; i<ctx->size; i++) {
shapes_t shape;
shape_copy(&ctx->shape_defaults, &shape);
cairoRandomizeColor(ctx);
shape.x = 10 + trunc( (((double)ctx->canvas_width-20.0)*rand())/RAND_MAX );
shape.y = 10 + trunc( (((double)ctx->canvas_height-20.0)*rand())/RAND_MAX );
/* vary radius upto half of MIN(X,Y) */
shape.radius = (double)rand()/RAND_MAX * 20;
shape.width = 100;
shape.height = 40;
/* line_width cannot be more than twice of radius due to skia limitation - Issue #4 in skia https://github.com/Samsung/skia/issues/4 */
shape.stroke_width = (double)rand()/RAND_MAX * (2*shape.radius);
cairoDrawRoundedRectangle(ctx, &shape);
cairo_set_line_width (cr, shape.stroke_width);
cairo_stroke (cr);
}
return 1;
}
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :
|
