mirror of
https://gitlab.freedesktop.org/cairo/cairo.git
synced 2025-12-20 15:10:08 +01:00
af9fbd176b
Having spent the last dev cycle looking at how we could specialize the compositors for various backends, we once again look for the commonalities in order to reduce the duplication. In part this is motivated by the idea that spans is a good interface for both the existent GL backend and pixman, and so they deserve a dedicated compositor. xcb/xlib target an identical rendering system and so they should be using the same compositor, and it should be possible to run that same compositor locally against pixman to generate reference tests. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> P.S. This brings massive upheaval (read breakage) I've tried delaying in order to fix as many things as possible but now this one patch does far, far, far too much. Apologies in advance for breaking your favourite backend, but trust me in that the end result will be much better. :)
352 lines
9.8 KiB
C
352 lines
9.8 KiB
C
/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */
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/* cairo - a vector graphics library with display and print output
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*
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* Copyright (c) 2008 M Joonas Pihlaja
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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,
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* copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following
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* 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
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* OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
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* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <assert.h>
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#include "cairo-perf.h"
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#define MAX_SEGMENTS 2560
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typedef enum {
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PIXALIGN, /* pixel aligned path */
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NONALIGN /* unaligned path. */
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} align_t;
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typedef enum {
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RECTCLOSE, /* keeps the path rectilinear */
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DIAGCLOSE /* forces a diagonal */
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} close_t;
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static cairo_time_t
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draw_spiral (cairo_t *cr,
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cairo_fill_rule_t fill_rule,
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align_t align,
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close_t close,
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int width, int height, int loops)
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{
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int i;
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int n=0;
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double x[MAX_SEGMENTS];
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double y[MAX_SEGMENTS];
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int step = 3;
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int side = width < height ? width : height;
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assert(5*(side/step/2+1)+2 < MAX_SEGMENTS);
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#define L(x_,y_) (x[n] = (x_), y[n] = (y_), n++)
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#define M(x_,y_) L(x_,y_)
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#define v(t) L(x[n-1], y[n-1] + (t))
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#define h(t) L(x[n-1] + (t), y[n-1])
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switch (align) {
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case PIXALIGN: M(0,0); break;
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case NONALIGN: M(0.1415926, 0.7182818); break;
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}
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while (side >= step && side >= 0) {
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v(side);
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h(side);
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v(-side);
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h(-side+step);
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v(step);
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side -= 2*step;
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}
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switch (close) {
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case RECTCLOSE: L(x[n-1],y[0]); break;
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case DIAGCLOSE: L(x[0],y[0]); break;
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}
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assert(n < MAX_SEGMENTS);
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cairo_save (cr);
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cairo_set_source_rgb (cr, 0, 0, 0);
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cairo_paint (cr);
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cairo_translate (cr, 1, 1);
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cairo_set_fill_rule (cr, fill_rule);
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cairo_set_source_rgb (cr, 1, 0, 0);
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cairo_new_path (cr);
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cairo_move_to (cr, x[0], y[0]);
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for (i = 1; i < n; i++) {
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cairo_line_to (cr, x[i], y[i]);
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}
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cairo_close_path (cr);
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cairo_perf_timer_start ();
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while (loops--)
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cairo_fill_preserve (cr);
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cairo_perf_timer_stop ();
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cairo_restore (cr);
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return cairo_perf_timer_elapsed ();
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}
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static cairo_time_t
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draw_spiral_box (cairo_t *cr,
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cairo_fill_rule_t fill_rule,
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align_t align,
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int width, int height, int loops)
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{
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const int step = 3;
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int side = (width < height ? width : height) - 2;
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cairo_save (cr);
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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_source_rgb (cr, 1, 0, 0);
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cairo_set_fill_rule (cr, fill_rule);
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cairo_translate (cr, 1, 1);
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if (align == NONALIGN)
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cairo_translate (cr, 0.1415926, 0.7182818);
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cairo_new_path (cr);
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while (side >= step) {
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cairo_rectangle (cr, 0, 0, side, side);
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cairo_translate (cr, step, step);
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side -= 2*step;
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}
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cairo_perf_timer_start ();
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while (loops--)
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cairo_fill_preserve (cr);
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cairo_perf_timer_stop ();
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cairo_restore (cr);
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return cairo_perf_timer_elapsed ();
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}
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static cairo_time_t
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draw_spiral_stroke (cairo_t *cr,
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align_t align,
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int width, int height, int loops)
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{
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const int step = 3;
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int side = width < height ? width : height;
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cairo_save (cr);
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cairo_set_source_rgb (cr, 0, 0, 0);
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cairo_paint (cr);
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cairo_translate (cr, 1, 1);
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cairo_set_source_rgb (cr, 1, 0, 0);
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cairo_set_line_width (cr, 4.);
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cairo_set_line_join (cr, CAIRO_LINE_JOIN_MITER);
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cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT);
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cairo_new_path (cr);
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switch (align) {
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case PIXALIGN: cairo_move_to (cr, 0,0); break;
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case NONALIGN: cairo_move_to (cr, 0.1415926, 0.7182818); break;
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}
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while (side >= step) {
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cairo_rel_line_to (cr, 0, side);
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side -= step;
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if (side <= 0)
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break;
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cairo_rel_line_to (cr, side, 0);
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side -= step;
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if (side <= 0)
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break;
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cairo_rel_line_to (cr, 0, -side);
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side -= step;
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if (side <= 0)
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break;
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cairo_rel_line_to (cr, -side, 0);
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side -= step;
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if (side <= 0)
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break;
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}
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cairo_perf_timer_start ();
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while (loops--)
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cairo_stroke_preserve (cr);
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cairo_perf_timer_stop ();
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cairo_restore (cr);
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return cairo_perf_timer_elapsed ();
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}
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static cairo_time_t
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draw_spiral_eo_pa_re (cairo_t *cr, int width, int height, int loops)
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{
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return draw_spiral (cr,
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CAIRO_FILL_RULE_EVEN_ODD,
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PIXALIGN,
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RECTCLOSE,
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width, height, loops);
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}
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static cairo_time_t
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draw_spiral_nz_pa_re (cairo_t *cr, int width, int height, int loops)
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{
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return draw_spiral (cr,
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CAIRO_FILL_RULE_WINDING,
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PIXALIGN,
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RECTCLOSE,
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width, height, loops);
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}
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static cairo_time_t
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draw_spiral_eo_na_re (cairo_t *cr, int width, int height, int loops)
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{
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return draw_spiral (cr,
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CAIRO_FILL_RULE_EVEN_ODD,
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NONALIGN,
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RECTCLOSE,
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width, height, loops);
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}
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static cairo_time_t
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draw_spiral_nz_na_re (cairo_t *cr, int width, int height, int loops)
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{
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return draw_spiral (cr,
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CAIRO_FILL_RULE_WINDING,
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NONALIGN,
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RECTCLOSE,
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width, height, loops);
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}
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static cairo_time_t
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draw_spiral_eo_pa_di (cairo_t *cr, int width, int height, int loops)
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{
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return draw_spiral (cr,
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CAIRO_FILL_RULE_EVEN_ODD,
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PIXALIGN,
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DIAGCLOSE,
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width, height, loops);
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}
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static cairo_time_t
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draw_spiral_nz_pa_di (cairo_t *cr, int width, int height, int loops)
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{
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return draw_spiral (cr,
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CAIRO_FILL_RULE_WINDING,
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PIXALIGN,
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DIAGCLOSE,
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width, height, loops);
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}
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static cairo_time_t
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draw_spiral_eo_na_di (cairo_t *cr, int width, int height, int loops)
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{
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return draw_spiral (cr,
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CAIRO_FILL_RULE_EVEN_ODD,
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NONALIGN,
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DIAGCLOSE,
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width, height, loops);
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}
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static cairo_time_t
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draw_spiral_nz_na_di (cairo_t *cr, int width, int height, int loops)
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{
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return draw_spiral (cr,
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CAIRO_FILL_RULE_WINDING,
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NONALIGN,
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DIAGCLOSE,
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width, height, loops);
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}
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static cairo_time_t
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draw_spiral_nz_pa_box (cairo_t *cr, int width, int height, int loops)
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{
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return draw_spiral_box (cr,
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CAIRO_FILL_RULE_WINDING, PIXALIGN,
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width, height, loops);
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}
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static cairo_time_t
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draw_spiral_nz_na_box (cairo_t *cr, int width, int height, int loops)
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{
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return draw_spiral_box (cr,
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CAIRO_FILL_RULE_WINDING, NONALIGN,
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width, height, loops);
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}
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static cairo_time_t
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draw_spiral_eo_pa_box (cairo_t *cr, int width, int height, int loops)
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{
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return draw_spiral_box (cr,
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CAIRO_FILL_RULE_EVEN_ODD, PIXALIGN,
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width, height, loops);
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}
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static cairo_time_t
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draw_spiral_eo_na_box (cairo_t *cr, int width, int height, int loops)
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{
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return draw_spiral_box (cr,
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CAIRO_FILL_RULE_EVEN_ODD, NONALIGN,
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width, height, loops);
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}
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static cairo_time_t
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draw_spiral_stroke_pa (cairo_t *cr, int width, int height, int loops)
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{
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return draw_spiral_stroke (cr,
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PIXALIGN,
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width, height, loops);
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}
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static cairo_time_t
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draw_spiral_stroke_na (cairo_t *cr, int width, int height, int loops)
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{
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return draw_spiral_stroke (cr,
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NONALIGN,
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width, height, loops);
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}
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cairo_bool_t
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spiral_enabled (cairo_perf_t *perf)
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{
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return cairo_perf_can_run (perf, "spiral", NULL);
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}
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void
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spiral (cairo_perf_t *perf, cairo_t *cr, int width, int height)
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{
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cairo_perf_run (perf, "spiral-box-nonalign-evenodd-fill", draw_spiral_eo_na_box, NULL);
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cairo_perf_run (perf, "spiral-box-nonalign-nonzero-fill", draw_spiral_nz_na_box, NULL);
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cairo_perf_run (perf, "spiral-box-pixalign-evenodd-fill", draw_spiral_eo_pa_box, NULL);
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cairo_perf_run (perf, "spiral-box-pixalign-nonzero-fill", draw_spiral_nz_pa_box, NULL);
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cairo_perf_run (perf, "spiral-diag-nonalign-evenodd-fill", draw_spiral_eo_na_di, NULL);
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cairo_perf_run (perf, "spiral-diag-nonalign-nonzero-fill", draw_spiral_nz_na_di, NULL);
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cairo_perf_run (perf, "spiral-diag-pixalign-evenodd-fill", draw_spiral_eo_pa_di, NULL);
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cairo_perf_run (perf, "spiral-diag-pixalign-nonzero-fill", draw_spiral_nz_pa_di, NULL);
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cairo_perf_run (perf, "spiral-rect-nonalign-evenodd-fill", draw_spiral_eo_na_re, NULL);
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cairo_perf_run (perf, "spiral-rect-nonalign-nonzero-fill", draw_spiral_nz_na_re, NULL);
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cairo_perf_run (perf, "spiral-rect-pixalign-evenodd-fill", draw_spiral_eo_pa_re, NULL);
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cairo_perf_run (perf, "spiral-rect-pixalign-nonzero-fill", draw_spiral_nz_pa_re, NULL);
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cairo_perf_run (perf, "spiral-nonalign-stroke", draw_spiral_stroke_na, NULL);
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cairo_perf_run (perf, "spiral-pixalign-stroke", draw_spiral_stroke_pa, NULL);
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}
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