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3a29365713
A benchmark to test how close we get to reducing paint+clip to an ordinary fill, and to check correctness. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
153 lines
3.9 KiB
C
153 lines
3.9 KiB
C
/*
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* Copyright © 2011 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* Author: Chris Wilson <chris@chris-wilson.co.uk>
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*/
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#include "cairo-test.h"
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#define STEP 5
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#define WIDTH 100
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#define HEIGHT 100
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static void hatching (cairo_t *cr)
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{
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int i;
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cairo_rectangle (cr, 0, 0, WIDTH, HEIGHT);
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cairo_clip (cr);
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for (i = 0; i < WIDTH; i += STEP) {
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cairo_rectangle (cr, i-1, -2, 2, HEIGHT+4);
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cairo_rectangle (cr, -2, i-1, WIDTH+4, 2);
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}
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}
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static void background (cairo_t *cr)
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{
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cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
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cairo_set_source_rgb (cr, 1,1,1);
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cairo_paint (cr);
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}
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static void clip_to_quadrant (cairo_t *cr)
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{
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cairo_rectangle (cr, 0, 0, WIDTH, HEIGHT);
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cairo_clip (cr);
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}
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static void draw_hatching (cairo_t *cr, void (*func) (cairo_t *))
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{
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cairo_save (cr); {
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clip_to_quadrant (cr);
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hatching (cr);
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func (cr);
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} cairo_restore (cr);
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cairo_translate (cr, WIDTH, 0);
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cairo_save (cr); {
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clip_to_quadrant (cr);
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cairo_translate (cr, 0.25, 0.25);
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hatching (cr);
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func (cr);
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} cairo_restore (cr);
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cairo_translate (cr, WIDTH, 0);
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cairo_save (cr); {
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clip_to_quadrant (cr);
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cairo_translate (cr, WIDTH/2, HEIGHT/2);
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cairo_rotate (cr, M_PI/4);
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cairo_translate (cr, -WIDTH/2, -HEIGHT/2);
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hatching (cr);
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func (cr);
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} cairo_restore (cr);
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cairo_translate (cr, WIDTH, 0);
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}
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static void do_clip (cairo_t *cr)
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{
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cairo_clip (cr);
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cairo_paint (cr);
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}
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static void do_clip_alpha (cairo_t *cr)
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{
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cairo_clip (cr);
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cairo_paint_with_alpha (cr, .5);
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}
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static void hatchings (cairo_t *cr, void (*func) (cairo_t *))
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{
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cairo_save (cr); {
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cairo_set_source_rgb(cr, 1, 0, 0);
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cairo_set_antialias (cr, CAIRO_ANTIALIAS_DEFAULT);
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draw_hatching (cr, func);
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cairo_set_source_rgb(cr, 0, 0, 1);
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cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE);
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draw_hatching (cr, func);
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} cairo_restore (cr);
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}
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static cairo_test_status_t
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draw (cairo_t *cr, int width, int height)
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{
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background (cr);
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/* aligned, misaligned, diagonal; mono repeat
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* x fill
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* x clip; paint
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* x clip; paint-alpha
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* repeated, for over/source
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*/
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cairo_set_operator (cr, CAIRO_OPERATOR_OVER);
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hatchings (cr, cairo_fill);
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cairo_translate (cr, 0, HEIGHT);
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hatchings (cr, do_clip);
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cairo_translate (cr, 0, HEIGHT);
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hatchings (cr, do_clip_alpha);
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cairo_translate (cr, 0, HEIGHT);
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cairo_set_operator (cr, CAIRO_OPERATOR_SOURCE);
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hatchings (cr, cairo_fill);
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cairo_translate (cr, 0, HEIGHT);
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hatchings (cr, do_clip);
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cairo_translate (cr, 0, HEIGHT);
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hatchings (cr, do_clip_alpha);
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cairo_translate (cr, 0, HEIGHT);
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return CAIRO_TEST_SUCCESS;
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}
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CAIRO_TEST (hatchings,
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"Test drawing through various aligned/unaliged clips",
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"clip, alpha", /* keywords */
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"target=raster", /* requirements */
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6*WIDTH, 6*HEIGHT,
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NULL, draw)
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