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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 "caskbench.h"
#include "caskbench_context.h"
#include "cairo-shapes.h"
#include <math.h>
int
ca_setup_linear_gradient(caskbench_context_t *ctx)
{
return 1;
}
void
ca_teardown_linear_gradient(void)
{
}
int
ca_test_linear_gradient(caskbench_context_t *ctx)
{
int w = ctx->canvas_width;
int h = ctx->canvas_height;
int stops = 2;
double x1,y1 ,x2,y2;
x1 = y1 = 0;
x2 = y2 = 100;
cairo_t *cr = ctx->cairo_cr;
cairo_pattern_t *pattern = cairo_pattern_create_linear (0,0,100,100);
for (int i = 1; i <= stops; i++) {
double red, green, blue, alpha;
generate_random_color(red,green,blue,alpha);
cairo_pattern_add_color_stop_rgba (pattern, i/(stops), red, green, blue, alpha);
}
shapes_t shape;
shape_copy(&ctx->shape_defaults, &shape);
for (int i=0; i<ctx->size; i++) {
double x1 = (double)rnd()/RAND_MAX * w;
double x2 = (double)rnd()/RAND_MAX * w;
double y1 = (double)rnd()/RAND_MAX * h;
double y2 = (double)rnd()/RAND_MAX * h;
double x = MIN(x1, x2);
double y = MIN(y1, y2);
double width_ratio = float(fabs(x2 - x1)) / float(100);
double height_ratio = float(fabs(y2 - y1)) / float(100);
cairo_save(cr);
cairo_translate(cr, x, y);
cairo_scale(cr, width_ratio, height_ratio);
// transform(shape.width/100, 0, 0, shape.height/100, 0, 0)
shape.x = 0;
shape.y = 0;
shape.width = 100;
shape.height = 100;
shape.fill_type = CB_FILL_LINEAR_GRADIENT;
cairo_set_source (cr, pattern);
cairoDrawRectangle(ctx, &shape);
cairo_fill (cr);
cairo_restore(cr);
}
cairo_pattern_destroy(pattern);
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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