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/*
* 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 <stdlib.h>
#include <cairo.h>
#include <math.h>
#include "caskbench.h"
#include "caskbench_context.h"
#include "cairo-shapes.h"
static double delta = 0;
int
ca_setup_curves(caskbench_context_t *ctx)
{
cairo_set_antialias (ctx->cairo_cr, CAIRO_ANTIALIAS_NONE);
cairo_set_line_width (ctx->cairo_cr, 1);
return 1;
}
void
ca_teardown_curves(void)
{
}
int
ca_test_curves(caskbench_context_t *ctx)
{
cairo_t *cr = ctx->cairo_cr;
int cp = ctx->canvas_width / 2; // center point
int rr = ctx->canvas_width / 2;
int nn = 32; // must be even
double step = (2 * M_PI) / nn;
for (int i=0; i<ctx->size; i++) {
double angle = delta; // in radians
double x = cp + rr * cos(angle);
double y = cp + rr * sin(angle);
// begin path
cairo_new_path(cr);
cairo_move_to (cr, x, y);
// segments
for (int j=0; j<nn; j++) {
double r = rr * drand48() / 8.0;
double angle1 = j * step + delta;
double x1 = cp + r * cos(angle1);
double y1 = cp + r * sin(angle1);
double x2 = cp + rr * cos(angle1);
double y2 = cp + rr * sin(angle1);
cairo_curve_to (ctx->cairo_cr,
x1, y1,
x2, y2, x2,y2);
}
cairo_close_path(cr);
cairoRandomizeColor(ctx);
// TODO: apply other fill types
if (ctx->shape_defaults.fill_type == CB_FILL_SOLID) {
cairo_fill (cr);
}
cairo_stroke (cr);
}
delta += 0.5;
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 :
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