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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 <stdio.h>
#include <stdlib.h>
#include <cairo.h>
#if USE_EGL
# include <cairo-gl.h>
#endif
#include "caskbench.h"
#include "caskbench_context.h"
#include "cairo-shapes.h"
static cairo_pattern_t *mask;
int
ca_setup_mask(caskbench_context_t *ctx)
{
// See https://git.gnome.org/browse/gtk+/tree/gtk/gtkcolorbutton.c?id=804c80097995bb0026544118a32b59e23ee2fbe3#n241
static unsigned char data[16] = { 0xFF, 0x00, 0x00, 0xFF,
0x00, 0xFF, 0xFF, 0x00,
0x00, 0xFF, 0xFF, 0x00,
0xFF, 0x00, 0x00, 0xFF, };
cairo_surface_t *stippled = cairo_image_surface_create_for_data(data, CAIRO_FORMAT_A8, 2, 2, 4);
#if USE_EGL
if (cairo_surface_get_type (ctx->cairo_surface) == CAIRO_SURFACE_TYPE_GL) {
cairo_surface_t *cairo_surface;
cairo_device_t *cairo_device = cairo_surface_get_device (ctx->cairo_surface);
/* create a gl surface similar to image surface */
cairo_surface = cairo_gl_surface_create (cairo_device, CAIRO_CONTENT_COLOR_ALPHA, 2, 2);
cairo_t *gl_ctx = cairo_create (cairo_surface);
cairo_pattern_t *pattern = cairo_pattern_create_for_surface (stippled);
cairo_set_source (gl_ctx, pattern);
/* paint image surface to gl surface as a pattern */
cairo_paint (gl_ctx);
cairo_destroy (gl_ctx);
/* use gl surface as mask */
mask = cairo_pattern_create_for_surface (cairo_surface);
}
else
#endif
mask = cairo_pattern_create_for_surface (stippled);
cairo_pattern_set_extend (mask, CAIRO_EXTEND_REPEAT);
cairo_pattern_set_filter (mask, CAIRO_FILTER_NEAREST);
return 1;
}
void
ca_teardown_mask(void)
{
cairo_pattern_destroy (mask);
}
int
ca_test_mask(caskbench_context_t *ctx)
{
int i;
cairo_t *cr = ctx->cairo_cr;
for (i=0; i<ctx->size; i++) {
// Apply mask on a circle
cairoRandomizeColor(ctx);
cairo_arc (cr, 40*i, 40, 30, 0, 2*M_PI);
cairo_save (cr);
cairo_clip (cr);
cairo_mask (cr, mask);
cairo_fill (cr);
cairo_restore (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 :
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