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411c09eed7
Real applications that control their Drawable externally to Cairo are 'disadvantaged' by cairo-perf-trace when it creates a similar surface for each new instance of the same Drawable. The difficulty in maintaining one perf surface for every application surface is that the traces do not track lifetimes for the application surfaces, so we would just accumulate stale surfaces. The surface cache takes a different approach and returns the same surface for each active Drawable, and maintains a hold-over of the MRU 16 surfaces. This achieves 60-80% hit rate with firefox, which is probably as good as can be expected. Obviously for double-buffered applications we only every draw to freshly created surfaces (and Gtk+ bypasses cairo to do the final copy -- the ideal application would just use a push-group for double buffering, in which case we would capture and replay the entire expose event). To enable use of the surface cache whilst replaying use -c: ./cairo-perf-trace -c firefox-talos-gfx
117 lines
3.8 KiB
C
117 lines
3.8 KiB
C
/* cairo - a vector graphics library with display and print output
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*
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* Copyright © 2008 Chris Wilson
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*
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* This library is free software; you can redistribute it and/or
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* modify it either under the terms of the GNU Lesser General Public
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* License version 2.1 as published by the Free Software Foundation
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* (the "LGPL") or, at your option, under the terms of the Mozilla
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* Public License Version 1.1 (the "MPL"). If you do not alter this
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* notice, a recipient may use your version of this file under either
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* the MPL or the LGPL.
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*
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* You should have received a copy of the LGPL along with this library
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* in the file COPYING-LGPL-2.1; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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* You should have received a copy of the MPL along with this library
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* in the file COPYING-MPL-1.1
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*
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* The contents of this file are subject to the Mozilla Public License
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* Version 1.1 (the "License"); you may not use this file except in
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* compliance with the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
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* OF ANY KIND, either express or implied. See the LGPL or the MPL for
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* the specific language governing rights and limitations.
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*
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* The Original Code is the cairo graphics library.
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*
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* The Initial Developer of the Original Code is Chris Wilson
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*
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* Contributor(s):
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* Chris Wilson <chris@chris-wilson.co.uk>
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*/
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#ifndef CAIRO_SCRIPT_INTERPRETER_H
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#define CAIRO_SCRIPT_INTERPRETER_H
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#include <cairo.h>
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#include <stdio.h>
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CAIRO_BEGIN_DECLS
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typedef struct _cairo_script_interpreter cairo_script_interpreter_t;
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/* XXX expose csi_dictionary_t and pass to hooks */
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typedef void
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(*csi_destroy_func_t) (void *closure,
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void *ptr);
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typedef cairo_surface_t *
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(*csi_surface_create_func_t) (void *closure,
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cairo_content_t content,
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double width,
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double height,
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long uid);
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typedef cairo_t *
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(*csi_context_create_func_t) (void *closure,
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cairo_surface_t *surface);
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typedef void
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(*csi_show_page_func_t) (void *closure,
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cairo_t *cr);
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typedef void
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(*csi_copy_page_func_t) (void *closure,
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cairo_t *cr);
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typedef struct _cairo_script_interpreter_hooks {
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void *closure;
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csi_surface_create_func_t surface_create;
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csi_destroy_func_t surface_destroy;
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csi_context_create_func_t context_create;
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csi_destroy_func_t context_destroy;
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csi_show_page_func_t show_page;
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csi_copy_page_func_t copy_page;
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} cairo_script_interpreter_hooks_t;
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cairo_public cairo_script_interpreter_t *
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cairo_script_interpreter_create (void);
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cairo_public void
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cairo_script_interpreter_install_hooks (cairo_script_interpreter_t *ctx,
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const cairo_script_interpreter_hooks_t *hooks);
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cairo_public cairo_status_t
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cairo_script_interpreter_run (cairo_script_interpreter_t *ctx,
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const char *filename);
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cairo_public cairo_status_t
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cairo_script_interpreter_feed_stream (cairo_script_interpreter_t *ctx,
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FILE *stream);
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cairo_public cairo_status_t
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cairo_script_interpreter_feed_string (cairo_script_interpreter_t *ctx,
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const char *line,
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int len);
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cairo_public unsigned int
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cairo_script_interpreter_get_line_number (cairo_script_interpreter_t *ctx);
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cairo_public cairo_script_interpreter_t *
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cairo_script_interpreter_reference (cairo_script_interpreter_t *ctx);
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cairo_public cairo_status_t
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cairo_script_interpreter_finish (cairo_script_interpreter_t *ctx);
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cairo_public cairo_status_t
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cairo_script_interpreter_destroy (cairo_script_interpreter_t *ctx);
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cairo_public cairo_status_t
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cairo_script_interpreter_translate_stream (FILE *stream,
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cairo_write_func_t write_func,
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void *closure);
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CAIRO_END_DECLS
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#endif /*CAIRO_SCRIPT_INTERPRETER_H*/
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