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77c2820840
The original "slim" symbol rewriting was added without any shred of a set of performance evaluation, and mostly copy-pasted from a very early version of pixman. Pixman itself never used them, and most C libraries—like GLib and GTK—have dropped similar mechanisms over the past 15 years, as linkers have improved considerably in the meantime. Modern linkers provide functionality to avoid intra-library PLT jump through flags like `-Bsymbolic-functions`; we should use that, instead, and keep the code base more maintainable and debuggable.
271 lines
9.1 KiB
C
271 lines
9.1 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 © 2005 Red Hat, Inc
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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., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, 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 Red Hat, Inc.
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*
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* Contributor(s):
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* Kristian Høgsberg <krh@redhat.com>
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* Adrian Johnson <ajohnson@redneon.com>
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*/
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#ifndef CAIRO_RECORDING_SURFACE_H
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#define CAIRO_RECORDING_SURFACE_H
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#include "cairoint.h"
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#include "cairo-path-fixed-private.h"
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#include "cairo-pattern-private.h"
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#include "cairo-surface-backend-private.h"
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typedef enum {
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/* The 5 basic drawing operations. */
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CAIRO_COMMAND_PAINT,
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CAIRO_COMMAND_MASK,
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CAIRO_COMMAND_STROKE,
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CAIRO_COMMAND_FILL,
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CAIRO_COMMAND_SHOW_TEXT_GLYPHS,
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/* cairo_tag_begin()/cairo_tag_end() */
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CAIRO_COMMAND_TAG,
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} cairo_command_type_t;
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typedef enum {
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CAIRO_RECORDING_REGION_ALL = 0,
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CAIRO_RECORDING_REGION_NATIVE,
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CAIRO_RECORDING_REGION_IMAGE_FALLBACK
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} cairo_recording_region_type_t;
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typedef enum {
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CAIRO_RECORDING_REPLAY,
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CAIRO_RECORDING_CREATE_REGIONS,
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CAIRO_RECORDING_REPLAY_REGION
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} cairo_recording_replay_type_t;
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typedef struct _cairo_command_header {
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cairo_command_type_t type;
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cairo_operator_t op;
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cairo_rectangle_int_t extents;
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cairo_clip_t *clip;
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int index;
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struct _cairo_command_header *chain;
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} cairo_command_header_t;
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typedef struct _cairo_command_paint {
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cairo_command_header_t header;
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cairo_pattern_union_t source;
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} cairo_command_paint_t;
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typedef struct _cairo_command_mask {
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cairo_command_header_t header;
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cairo_pattern_union_t source;
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cairo_pattern_union_t mask;
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} cairo_command_mask_t;
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typedef struct _cairo_command_stroke {
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cairo_command_header_t header;
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cairo_pattern_union_t source;
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cairo_path_fixed_t path;
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cairo_stroke_style_t style;
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cairo_matrix_t ctm;
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cairo_matrix_t ctm_inverse;
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double tolerance;
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cairo_antialias_t antialias;
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} cairo_command_stroke_t;
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typedef struct _cairo_command_fill {
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cairo_command_header_t header;
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cairo_pattern_union_t source;
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cairo_path_fixed_t path;
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cairo_fill_rule_t fill_rule;
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double tolerance;
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cairo_antialias_t antialias;
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} cairo_command_fill_t;
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typedef struct _cairo_command_show_text_glyphs {
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cairo_command_header_t header;
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cairo_pattern_union_t source;
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char *utf8;
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int utf8_len;
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cairo_glyph_t *glyphs;
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unsigned int num_glyphs;
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cairo_text_cluster_t *clusters;
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int num_clusters;
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cairo_text_cluster_flags_t cluster_flags;
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cairo_scaled_font_t *scaled_font;
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} cairo_command_show_text_glyphs_t;
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typedef struct _cairo_command_tag {
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cairo_command_header_t header;
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cairo_bool_t begin;
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char *tag_name;
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char *attributes;
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} cairo_command_tag_t;
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typedef union _cairo_command {
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cairo_command_header_t header;
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cairo_command_paint_t paint;
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cairo_command_mask_t mask;
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cairo_command_stroke_t stroke;
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cairo_command_fill_t fill;
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cairo_command_show_text_glyphs_t show_text_glyphs;
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cairo_command_tag_t tag;
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} cairo_command_t;
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typedef struct _cairo_recording_surface {
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cairo_surface_t base;
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/* A recording-surface is logically unbounded, but when used as a
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* source we need to render it to an image, so we need a size at
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* which to create that image. */
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cairo_rectangle_t extents_pixels;
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cairo_rectangle_int_t extents;
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cairo_bool_t unbounded;
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cairo_array_t commands;
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unsigned int *indices;
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unsigned int num_indices;
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cairo_bool_t optimize_clears;
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cairo_bool_t has_bilevel_alpha;
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cairo_bool_t has_only_op_over;
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cairo_bool_t has_tags;
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struct bbtree {
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cairo_box_t extents;
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struct bbtree *left, *right;
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cairo_command_header_t *chain;
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} bbtree;
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/* The mutex protects modification to all subsequent fields. */
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cairo_mutex_t mutex;
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cairo_list_t region_array_list;
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} cairo_recording_surface_t;
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typedef struct _cairo_recording_region_element {
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cairo_recording_region_type_t region;
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unsigned int source_id;
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unsigned int mask_id;
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} cairo_recording_region_element_t;
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typedef struct _cairo_recording_region_array {
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unsigned int id;
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cairo_reference_count_t ref_count;
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cairo_array_t regions; /* cairo_recording_region_element_t */
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cairo_list_t link;
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} cairo_recording_regions_array_t;
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cairo_private cairo_int_status_t
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_cairo_recording_surface_get_path (cairo_surface_t *surface,
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cairo_path_fixed_t *path);
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cairo_private cairo_status_t
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_cairo_recording_surface_replay_one (cairo_recording_surface_t *surface,
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long unsigned index,
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cairo_surface_t *target);
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cairo_private cairo_status_t
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_cairo_recording_surface_replay (cairo_surface_t *surface,
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cairo_surface_t *target);
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cairo_private cairo_status_t
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_cairo_recording_surface_replay_with_foreground_color (cairo_surface_t *surface,
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cairo_surface_t *target,
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const cairo_color_t *foreground_color,
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cairo_bool_t *foreground_used);
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cairo_private cairo_status_t
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_cairo_recording_surface_replay_with_transform (cairo_surface_t *surface,
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const cairo_matrix_t *surface_transform,
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cairo_surface_t *target,
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cairo_bool_t surface_is_unbounded,
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cairo_bool_t replay_all);
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cairo_private cairo_status_t
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_cairo_recording_surface_replay_with_clip (cairo_surface_t *surface,
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const cairo_matrix_t *surface_transform,
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cairo_surface_t *target,
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const cairo_clip_t *target_clip);
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cairo_private cairo_status_t
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_cairo_recording_surface_replay_and_create_regions (cairo_surface_t *surface,
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unsigned int regions_id,
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const cairo_matrix_t *surface_transform,
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cairo_surface_t *target,
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cairo_bool_t surface_is_unbounded,
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cairo_bool_t replay_all);
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cairo_private cairo_status_t
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_cairo_recording_surface_replay_region (cairo_surface_t *surface,
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unsigned int regions_id,
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const cairo_rectangle_int_t *surface_extents,
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cairo_surface_t *target,
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cairo_recording_region_type_t region);
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cairo_private cairo_status_t
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_cairo_recording_surface_get_bbox (cairo_recording_surface_t *recording,
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cairo_box_t *bbox,
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const cairo_matrix_t *transform);
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cairo_private cairo_status_t
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_cairo_recording_surface_get_ink_bbox (cairo_recording_surface_t *surface,
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cairo_box_t *bbox,
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const cairo_matrix_t *transform);
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cairo_private cairo_bool_t
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_cairo_recording_surface_has_only_bilevel_alpha (cairo_recording_surface_t *surface);
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cairo_private cairo_bool_t
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_cairo_recording_surface_has_only_op_over (cairo_recording_surface_t *surface);
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cairo_private cairo_bool_t
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_cairo_recording_surface_has_tags (cairo_surface_t *surface);
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cairo_private cairo_status_t
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_cairo_recording_surface_region_array_attach (cairo_surface_t *surface,
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unsigned int *id);
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cairo_private void
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_cairo_recording_surface_region_array_reference (cairo_surface_t *surface,
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unsigned int id);
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cairo_private void
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_cairo_recording_surface_region_array_remove (cairo_surface_t *surface,
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unsigned int id);
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cairo_private void
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_cairo_debug_print_recording_surface (FILE *file,
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cairo_surface_t *surface,
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unsigned int regions_id,
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int indent,
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cairo_bool_t recurse);
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#endif /* CAIRO_RECORDING_SURFACE_H */
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