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https://gitlab.freedesktop.org/cairo/cairo.git
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53444c286e
Store the antialiasing mode in the gstate and pass it to the backend for trapezoid rendering and for clipping. Pass the antialiasing parameter down to the backend where appropriate. Pass the antialiasing parameter down to the backend where appropriate. Add support for A1 format trapezoid rendering, and remove the _create_mask_image function, creating a temporary image from memory we allocate and clear. Support A1 masks to disable antialiasing using the RENDER extension when requested. Support A1 masks to disable antialiasing using the RENDER extension when requested. Blindly pass through the antialising parameter. Add the antialiasing parameter but don't support it. Add a test case and a reference image from the latest libpixman. Add the new antialiasing disabling API to the docs. Update progress on a parameter to disable antialiasing. reviewed by: cworth, otaylor
103 lines
3 KiB
C
103 lines
3 KiB
C
/*
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* Copyright © 2005 Billy Biggs
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*
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* Permission to use, copy, modify, distribute, and sell this software
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* and its documentation for any purpose is hereby granted without
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* fee, provided that the above copyright notice appear in all copies
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* and that both that copyright notice and this permission notice
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* appear in supporting documentation, and that the name of
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* Billy Biggs not be used in advertising or publicity pertaining to
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* distribution of the software without specific, written prior
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* permission. Billy Biggs makes no representations about the
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* suitability of this software for any purpose. It is provided "as
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* is" without express or implied warranty.
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*
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* BILLY BIGGS DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
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* SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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* FITNESS, IN NO EVENT SHALL BILLY BIGGS BE LIABLE FOR ANY SPECIAL,
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* INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
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* RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
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* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
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* IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*
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* Author: Billy Biggs <vektor@dumbterm.net>
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*/
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#include "cairo-test.h"
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cairo_test_t test = {
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"unantialiased-shapes",
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"Test shape drawing without antialiasing",
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320, 240
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};
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/* The star shape from the SVG test suite, from the fill rule test */
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static void
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big_star_path (cairo_t *cr)
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{
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cairo_move_to (cr, 40, 0);
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cairo_rel_line_to (cr, 25, 80);
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cairo_rel_line_to (cr, -65, -50);
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cairo_rel_line_to (cr, 80, 0);
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cairo_rel_line_to (cr, -65, 50);
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cairo_close_path (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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int i;
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cairo_set_source_rgb (cr, 0, 0, 0);
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cairo_paint (cr);
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cairo_set_antialias (cr, CAIRO_ANTIALIAS_NONE);
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/* Try a circle */
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cairo_arc (cr, 40, 40, 20, 0, 2 * M_PI);
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cairo_set_source_rgb (cr, 1, 0, 0);
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cairo_fill (cr);
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/* Try using clipping to draw a circle */
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cairo_arc (cr, 100, 40, 20, 0, 2 * M_PI);
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cairo_clip (cr);
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cairo_rectangle (cr, 80, 20, 40, 40);
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cairo_set_source_rgb (cr, 0, 0, 1);
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cairo_fill (cr);
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/* Reset the clipping */
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cairo_reset_clip (cr);
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/* Draw a bunch of lines */
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cairo_set_line_width (cr, 1.0);
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cairo_set_source_rgb (cr, 0, 1, 0);
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for (i = 0; i < 10; i++) {
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cairo_move_to (cr, 10, 70 + (i * 4));
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cairo_line_to (cr, 120, 70 + (i * 18));
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cairo_stroke (cr);
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}
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/* Try filling a poly */
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cairo_translate (cr, 160, 120);
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cairo_set_source_rgb (cr, 1, 1, 0);
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big_star_path (cr);
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cairo_set_fill_rule (cr, CAIRO_FILL_RULE_EVEN_ODD);
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cairo_fill (cr);
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cairo_translate (cr, -160, -120);
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/* How about some curves? */
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cairo_set_source_rgb (cr, 1, 0, 1);
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for (i = 0; i < 10; i++) {
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cairo_move_to (cr, 150, 50 + (i * 5));
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cairo_curve_to (cr, 250, 50, 200, (i * 10), 300, 50 + (i * 10));
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cairo_stroke (cr);
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}
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return CAIRO_TEST_SUCCESS;
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}
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int
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main (void)
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{
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return cairo_test (&test, draw);
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}
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