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/*
* Copyright © 2007 Chris Wilson.
*
* Permission to use, copy, modify, distribute, and sell this software
* and its documentation for any purpose is hereby granted without
* fee, provided that the above copyright notice appear in all copies
* and that both that copyright notice and this permission notice
* appear in supporting documentation, and that the name of
* Chris Wilson. Not be used in advertising or publicity pertaining to
* distribution of the software without specific, written prior
* permission. Chris Wilson makes no representations about the
* suitability of this software for any purpose. It is provided "as
* is" without express or implied warranty.
*
* CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
* FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL,
* INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
* IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*
* Author: Chris Wilson <chris at chris-wilson.co.uk>
*/
#include "config.h"
#include "cairo-test.h"
#include <stdlib.h> /* drand48() */
#define LOOPS 10
#define NRAND 100
#ifndef HAVE_DRAND48
#define drand48() (rand () / (double) RAND_MAX)
#endif
static cairo_scaled_font_t *scaled_font;
static cairo_t *
_cairo_create_similar (cairo_t *cr, int width, int height)
{
cairo_surface_t *similar;
similar = cairo_surface_create_similar (cairo_get_target (cr),
cairo_surface_get_content (cairo_get_target (cr)),
width, height);
cr = cairo_create (similar);
cairo_surface_destroy (similar);
return cr;
}
static cairo_t *
_cairo_create_image (cairo_t *cr, cairo_format_t format, int width, int height)
{
cairo_surface_t *image;
image = cairo_image_surface_create (format, width, height);
cr = cairo_create (image);
cairo_surface_destroy (image);
return cr;
}
static void
_propagate_status (cairo_t *dst, cairo_t *src)
{
cairo_path_t path;
path.status = cairo_status (src);
if (path.status) {
path.num_data = 0;
path.data = NULL;
cairo_append_path (dst, &path);
}
}
static void
_draw (cairo_t *cr,
double red,
double green,
double blue)
{
cairo_text_extents_t extents;
cairo_set_source_rgb (cr, red, green, blue);
cairo_paint (cr);
cairo_move_to (cr, 0, 0);
cairo_line_to (cr, 1, 1);
cairo_stroke (cr);
cairo_mask (cr, cairo_get_source (cr));
cairo_set_scaled_font (cr, scaled_font);
cairo_text_extents (cr, "cairo", &extents);
cairo_move_to (cr,
-extents.x_bearing - .5 * extents.width,
-extents.y_bearing - .5 * extents.height);
cairo_show_text (cr, "cairo");
}
static void
use_similar (cairo_t *cr,
double red,
double green,
double blue)
{
cairo_t *cr2;
if (cairo_status (cr))
return;
cr2 = _cairo_create_similar (cr, 1, 1);
_draw (cr2, red, green, blue);
_propagate_status (cr, cr2);
cairo_destroy (cr2);
}
static void
use_image (cairo_t *cr,
cairo_format_t format,
double red,
double green,
double blue)
{
cairo_t *cr2;
if (cairo_status (cr))
return;
cr2 = _cairo_create_image (cr, format, 1, 1);
_draw (cr2, red, green, blue);
_propagate_status (cr, cr2);
cairo_destroy (cr2);
}
static void
use_solid (cairo_t *cr,
double red,
double green,
double blue)
{
/* mix in dissimilar solids */
use_image (cr, CAIRO_FORMAT_A1, red, green, blue);
use_image (cr, CAIRO_FORMAT_A8, red, green, blue);
use_image (cr, CAIRO_FORMAT_RGB24, red, green, blue);
use_image (cr, CAIRO_FORMAT_ARGB32, red, green, blue);
use_similar (cr, red, green, blue);
_draw (cr, red, green, blue);
}
static cairo_test_status_t
draw (cairo_t *cr, int width, int height)
{
const cairo_test_context_t *ctx = cairo_test_get_context (cr);
cairo_status_t status;
const double colors[8][3] = {
{ 1.0, 0.0, 0.0 }, /* red */
{ 0.0, 1.0, 0.0 }, /* green */
{ 1.0, 1.0, 0.0 }, /* yellow */
{ 0.0, 0.0, 1.0 }, /* blue */
{ 1.0, 0.0, 1.0 }, /* magenta */
{ 0.0, 1.0, 1.0 }, /* cyan */
{ 1.0, 1.0, 1.0 }, /* white */
{ 0.0, 0.0, 0.0 }, /* black */
};
int i, j, loop;
/* cache a resolved scaled-font */
scaled_font = cairo_get_scaled_font (cr);
for (loop = 0; loop < LOOPS; loop++) {
for (i = 0; i < LOOPS; i++) {
for (j = 0; j < 8; j++) {
use_solid (cr, colors[j][0], colors[j][1], colors[j][2]);
status = cairo_status (cr);
if (status)
return cairo_test_status_from_status (ctx, status);
}
}
for (i = 0; i < NRAND; i++) {
use_solid (cr, drand48 (), drand48 (), drand48 ());
status = cairo_status (cr);
if (status)
return cairo_test_status_from_status (ctx, status);
}
}
/* stress test only, so clear the surface before comparing */
cairo_set_source_rgb (cr, 0, 0, 1);
cairo_paint (cr);
return CAIRO_TEST_SUCCESS;
}
CAIRO_TEST (solid_pattern_cache_stress,
"Stress the solid pattern cache and ensure it behaves",
"stress", /* keywords */
NULL, /* requirements */
1, 1,
NULL, draw)
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