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/*
* Copyright © 2006 Joonas Pihlaja
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Author: Joonas Pihlaja <jpihlaja@cc.helsinki.fi>
*/
#include "cairo-perf.h"
/* Options passed in flags to mosaic_perform(): */
#define MOSAIC_FILL 1 /* do rasterise */
#define MOSAIC_TESSELLATE 0 /* just tessellate */
#define MOSAIC_CURVE_TO 2 /* use curve bounded regions */
#define MOSAIC_LINE_TO 0 /* use line bounded regions */
struct mosaic_region {
unsigned rgb; /* colour of this region in 0xRRGGBB format */
unsigned ncurves; /* number of boundary curves. */
};
struct mosaic_region_iter {
int do_curves;
struct mosaic_region const *region;
double const *points;
};
#include "mosaic.h"
static void
mosaic_region_iter_init (struct mosaic_region_iter *iter, int do_curves)
{
iter->region = mosaic_regions;
iter->points = mosaic_curve_points;
iter->do_curves = do_curves;
}
/* Create the next closed region as a path. */
static int
mosaic_next_path (cairo_t *cr, struct mosaic_region_iter *iter)
{
double const *points = iter->points;
unsigned i;
unsigned ncurves = iter->region->ncurves;
if (0 == ncurves) {
return 0;
}
cairo_new_path (cr);
cairo_move_to (cr, points[0], points[1]);
points += 2;
for (i=0; i < ncurves; i++, points += 6) {
if (iter->do_curves) {
cairo_curve_to (cr,
points[0], points[1],
points[2], points[3],
points[4], points[5]);
}
else {
cairo_line_to (cr,
points[4], points[5]);
}
}
cairo_close_path (cr);
{
unsigned rgb = iter->region->rgb;
double r = ((rgb >> 16) & 255) / 255.0;
double g = ((rgb >> 8) & 255) / 255.0;
double b = ((rgb >> 0) & 255) / 255.0;
cairo_set_source_rgb (cr, r, g, b);
}
iter->points = iter->points + 2*(1 + 3*iter->region->ncurves);
iter->region++;
return 1;
}
static cairo_perf_ticks_t
mosaic_perform(cairo_t *cr, unsigned flags, int width, int height, int loops)
{
struct mosaic_region_iter iter;
/* Scale to fit the window.*/
double minx = -40.7;
double maxx = 955.1;
double miny = -88.4;
double maxy = 884.5;
cairo_identity_matrix (cr);
if (flags & MOSAIC_FILL) {
cairo_set_source_rgb (cr, 1, 1, 1);
cairo_rectangle (cr, 0, 0, width, height);
cairo_fill (cr);
}
cairo_scale (cr, width / (maxx - minx) , height / (maxy - miny));
cairo_translate (cr, -minx, -miny);
/* Iterate over all closed regions in the mosaic filling or
* tessellating them as dictated by the flags. */
cairo_perf_timer_start ();
while (loops--) {
mosaic_region_iter_init (&iter, flags & MOSAIC_CURVE_TO);
while (mosaic_next_path (cr, &iter)) {
if (flags & MOSAIC_FILL) {
cairo_fill (cr);
}
else {
double x, y;
cairo_get_current_point (cr, &x, &y);
cairo_in_fill (cr, x, y);
}
}
}
cairo_perf_timer_stop ();
return cairo_perf_timer_elapsed ();
}
static cairo_perf_ticks_t
mosaic_fill_curves (cairo_t *cr, int width, int height, int loops)
{
return mosaic_perform (cr, MOSAIC_FILL | MOSAIC_CURVE_TO, width, height, loops);
}
static cairo_perf_ticks_t
mosaic_fill_lines (cairo_t *cr, int width, int height, int loops)
{
return mosaic_perform (cr, MOSAIC_FILL | MOSAIC_LINE_TO, width, height, loops);
}
static cairo_perf_ticks_t
mosaic_tessellate_lines (cairo_t *cr, int width, int height, int loops)
{
return mosaic_perform (cr, MOSAIC_TESSELLATE | MOSAIC_LINE_TO, width, height, loops);
}
static cairo_perf_ticks_t
mosaic_tessellate_curves (cairo_t *cr, int width, int height, int loops)
{
return mosaic_perform (cr, MOSAIC_TESSELLATE | MOSAIC_CURVE_TO, width, height, loops);
}
void
mosaic (cairo_perf_t *perf, cairo_t *cr, int width, int height)
{
if (! cairo_perf_can_run (perf, "mosaic", NULL))
return;
cairo_perf_run (perf, "mosaic-fill-curves", mosaic_fill_curves);
cairo_perf_run (perf, "mosaic-fill-lines", mosaic_fill_lines);
cairo_perf_run (perf, "mosaic-tessellate-curves", mosaic_tessellate_curves);
cairo_perf_run (perf, "mosaic-tessellate-lines", mosaic_tessellate_lines);
}
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