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-rw-r--r--perf/micro/mosaic.c176
1 files changed, 176 insertions, 0 deletions
diff --git a/perf/micro/mosaic.c b/perf/micro/mosaic.c
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+++ b/perf/micro/mosaic.c
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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_time_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_time_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_time_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_time_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_time_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);
+}
+
+cairo_bool_t
+mosaic_enabled (cairo_perf_t *perf)
+{
+ return cairo_perf_can_run (perf, "mosaic", NULL);
+}
+
+void
+mosaic (cairo_perf_t *perf, cairo_t *cr, int width, int height)
+{
+ cairo_perf_run (perf, "mosaic-fill-curves", mosaic_fill_curves, NULL);
+ cairo_perf_run (perf, "mosaic-fill-lines", mosaic_fill_lines, NULL);
+ cairo_perf_run (perf, "mosaic-tessellate-curves", mosaic_tessellate_curves, NULL);
+ cairo_perf_run (perf, "mosaic-tessellate-lines", mosaic_tessellate_lines, NULL);
+}