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-rwxr-xr-xsrc/cairo-tg-journal.c520
1 files changed, 520 insertions, 0 deletions
diff --git a/src/cairo-tg-journal.c b/src/cairo-tg-journal.c
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--- /dev/null
+++ b/src/cairo-tg-journal.c
@@ -0,0 +1,520 @@
+/*
+ * Copyright © 2012 SCore Corporation
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it either under the terms of the GNU Lesser General Public
+ * License version 2.1 as published by the Free Software Foundation
+ * (the "LGPL") or, at your option, under the terms of the Mozilla
+ * Public License Version 1.1 (the "MPL"). If you do not alter this
+ * notice, a recipient may use your version of this file under either
+ * the MPL or the LGPL.
+ *
+ * You should have received a copy of the LGPL along with this library
+ * in the file COPYING-LGPL-2.1; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA
+ * You should have received a copy of the MPL along with this library
+ * in the file COPYING-MPL-1.1
+ *
+ * The contents of this file are subject to the Mozilla Public License
+ * Version 1.1 (the "License"); you may not use this file except in
+ * compliance with the License. You may obtain a copy of the License at
+ * http://www.mozilla.org/MPL/
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
+ * OF ANY KIND, either express or implied. See the LGPL or the MPL for
+ * the specific language governing rights and limitations.
+ *
+ * Author: Taekyun Kim (podain77@gmail.com)
+ */
+
+#include "cairo-tg.h"
+#include "cairo-tg-private.h"
+#include "cairo-tg-journal-private.h"
+#include "cairo-tg-allocator-private.h"
+#include "cairo-tg-composite-extents-private.h"
+
+static inline cairo_int_status_t
+_cairo_tg_journal_pattern_snapshot (cairo_pattern_t *dst,
+ const cairo_pattern_t *src)
+{
+ return _cairo_pattern_init_snapshot (dst, src);
+}
+
+/* Allocator for various types of journal entries. */
+static cairo_tg_journal_entry_t *
+_cairo_tg_journal_entry_alloc (cairo_tg_mono_allocator_t *allocator,
+ cairo_tg_journal_entry_type_t type)
+{
+ cairo_tg_journal_entry_t *entry = NULL;
+
+ switch (type)
+ {
+ case CAIRO_TG_JOURNAL_ENTRY_PAINT:
+ entry = _cairo_tg_mono_allocator_alloc (allocator,
+ sizeof (cairo_tg_journal_entry_paint_t));
+ break;
+ case CAIRO_TG_JOURNAL_ENTRY_MASK:
+ entry = _cairo_tg_mono_allocator_alloc (allocator,
+ sizeof (cairo_tg_journal_entry_mask_t));
+ break;
+ case CAIRO_TG_JOURNAL_ENTRY_STROKE:
+ entry = _cairo_tg_mono_allocator_alloc (allocator,
+ sizeof (cairo_tg_journal_entry_stroke_t));
+ break;
+ case CAIRO_TG_JOURNAL_ENTRY_FILL:
+ entry = _cairo_tg_mono_allocator_alloc (allocator,
+ sizeof (cairo_tg_journal_entry_fill_t));
+ break;
+ case CAIRO_TG_JOURNAL_ENTRY_GLYPHS:
+ entry = _cairo_tg_mono_allocator_alloc (allocator,
+ sizeof (cairo_tg_journal_entry_glyphs_t));
+ break;
+ default:
+ ASSERT_NOT_REACHED;
+ return NULL;
+ }
+
+ /* One should not change the type of an entry.
+ * It is determined at the moment of allocation. */
+ entry->type = type;
+
+ return entry;
+}
+
+static void
+_cairo_tg_journal_entry_fini (cairo_tg_journal_entry_t *entry)
+{
+ /* common part. */
+ _cairo_pattern_fini (&entry->source.base);
+
+ if (entry->clip)
+ _cairo_clip_destroy (entry->clip);
+
+ /* For each entry types... */
+ switch (entry->type)
+ {
+ case CAIRO_TG_JOURNAL_ENTRY_PAINT:
+ break;
+ case CAIRO_TG_JOURNAL_ENTRY_MASK:
+ {
+ cairo_tg_journal_entry_mask_t *entry_mask =
+ (cairo_tg_journal_entry_mask_t *) entry;
+
+ _cairo_pattern_fini (&entry_mask->mask.base);
+ }
+ break;
+ case CAIRO_TG_JOURNAL_ENTRY_STROKE:
+ {
+ cairo_tg_journal_entry_stroke_t *entry_stroke =
+ (cairo_tg_journal_entry_stroke_t *) entry;
+
+ _cairo_path_fixed_fini (&entry_stroke->path);
+ _cairo_stroke_style_fini (&entry_stroke->style);
+ }
+ break;
+ case CAIRO_TG_JOURNAL_ENTRY_FILL:
+ {
+ cairo_tg_journal_entry_fill_t *entry_fill =
+ (cairo_tg_journal_entry_fill_t *) entry;
+
+ _cairo_path_fixed_fini (&entry_fill->path);
+ }
+ break;
+ case CAIRO_TG_JOURNAL_ENTRY_GLYPHS:
+ {
+ cairo_tg_journal_entry_glyphs_t *entry_glyphs =
+ (cairo_tg_journal_entry_glyphs_t *) entry;
+
+ free (entry_glyphs->glyphs);
+ cairo_scaled_font_destroy (entry_glyphs->scaled_font);
+ }
+ break;
+ default:
+ ASSERT_NOT_REACHED;
+ }
+}
+
+cairo_int_status_t
+_cairo_tg_journal_init (cairo_tg_journal_t *journal)
+{
+ cairo_int_status_t status;
+
+ CAIRO_MUTEX_INIT (journal->mutex);
+ journal->num_entries = 0;
+ cairo_list_init (&journal->entry_list);
+ journal->extents = _cairo_empty_rectangle;
+
+ status = _cairo_tg_mono_allocator_init (&journal->allocator, 4096 -
+ sizeof (cairo_tg_mem_chunk_t));
+
+ return status;
+}
+
+void
+_cairo_tg_journal_fini (cairo_tg_journal_t *journal)
+{
+ cairo_tg_journal_entry_t *entry;
+ cairo_tg_journal_entry_t *next;
+
+ CAIRO_MUTEX_FINI (journal->mutex);
+ cairo_list_foreach_entry_safe (entry, next, cairo_tg_journal_entry_t,
+ &journal->entry_list, link)
+ {
+ _cairo_tg_journal_entry_fini (entry);
+ }
+
+ _cairo_tg_mono_allocator_fini (&journal->allocator);
+}
+
+void
+_cairo_tg_journal_lock (cairo_tg_journal_t *journal)
+{
+ CAIRO_MUTEX_LOCK (journal->mutex);
+}
+
+void
+_cairo_tg_journal_unlock (cairo_tg_journal_t *journal)
+{
+ CAIRO_MUTEX_UNLOCK (journal->mutex);
+}
+
+cairo_int_status_t
+_cairo_tg_journal_log_paint (cairo_tg_journal_t *journal,
+ cairo_operator_t op,
+ const cairo_pattern_t *source,
+ const cairo_clip_t *clip)
+{
+ cairo_int_status_t status;
+ cairo_tg_journal_entry_paint_t *entry;
+
+ entry = (cairo_tg_journal_entry_paint_t *)
+ _cairo_tg_journal_entry_alloc (&journal->allocator, CAIRO_TG_JOURNAL_ENTRY_PAINT);
+
+ if (unlikely (entry == NULL))
+ return CAIRO_INT_STATUS_NO_MEMORY;
+
+ status = _cairo_tg_journal_pattern_snapshot (&entry->base.source.base, source);
+
+ if (unlikely (status))
+ return status;
+
+ entry->base.op = op;
+ entry->base.clip = _cairo_clip_copy (clip);
+ _cairo_tg_approximate_paint_extents (&entry->base.extents, op, source, clip);
+ _cairo_rectangle_union (&journal->extents, &entry->base.extents);
+
+ cairo_list_add_tail (&entry->base.link, &journal->entry_list);
+ journal->num_entries++;
+
+ return CAIRO_INT_STATUS_SUCCESS;
+}
+
+cairo_int_status_t
+_cairo_tg_journal_log_mask (cairo_tg_journal_t *journal,
+ cairo_operator_t op,
+ const cairo_pattern_t *source,
+ const cairo_pattern_t *mask,
+ const cairo_clip_t *clip)
+{
+ cairo_int_status_t status;
+ cairo_tg_journal_entry_mask_t *entry;
+
+ entry = (cairo_tg_journal_entry_mask_t *)
+ _cairo_tg_journal_entry_alloc (&journal->allocator, CAIRO_TG_JOURNAL_ENTRY_MASK);
+
+ if (unlikely (entry == NULL))
+ return CAIRO_INT_STATUS_NO_MEMORY;
+
+ status = _cairo_tg_journal_pattern_snapshot (&entry->base.source.base, source);
+
+ if (unlikely (status))
+ return status;
+
+ status = _cairo_tg_journal_pattern_snapshot (&entry->mask.base, mask);
+
+ if (unlikely (status))
+ {
+ _cairo_pattern_fini (&entry->base.source.base);
+ return status;
+ }
+
+ entry->base.op = op;
+ entry->base.clip = _cairo_clip_copy (clip);
+ _cairo_tg_approximate_mask_extents (&entry->base.extents, op, source, mask, clip);
+ _cairo_rectangle_union (&journal->extents, &entry->base.extents);
+
+ cairo_list_add_tail (&entry->base.link, &journal->entry_list);
+ journal->num_entries++;
+
+ return CAIRO_INT_STATUS_SUCCESS;
+}
+
+cairo_int_status_t
+_cairo_tg_journal_log_stroke (cairo_tg_journal_t *journal,
+ cairo_operator_t op,
+ const cairo_pattern_t *source,
+ const cairo_path_fixed_t *path,
+ const cairo_stroke_style_t *style,
+ const cairo_matrix_t *ctm,
+ const cairo_matrix_t *ctm_inverse,
+ double tolerance,
+ cairo_antialias_t antialias,
+ const cairo_clip_t *clip)
+{
+ cairo_int_status_t status;
+ cairo_tg_journal_entry_stroke_t *entry;
+
+ entry = (cairo_tg_journal_entry_stroke_t *)
+ _cairo_tg_journal_entry_alloc (&journal->allocator, CAIRO_TG_JOURNAL_ENTRY_STROKE);
+
+ if (unlikely (entry == NULL))
+ return CAIRO_INT_STATUS_NO_MEMORY;
+
+ status = _cairo_tg_journal_pattern_snapshot (&entry->base.source.base, source);
+
+ if (unlikely (status))
+ return status;
+
+ status = _cairo_path_fixed_init_copy (&entry->path, path);
+
+ if (unlikely (status))
+ {
+ _cairo_pattern_fini (&entry->base.source.base);
+ return status;
+ }
+
+ status = _cairo_stroke_style_init_copy (&entry->style, style);
+
+ if (unlikely (status))
+ {
+ _cairo_path_fixed_fini (&entry->path);
+ _cairo_pattern_fini (&entry->base.source.base);
+ return status;
+ }
+
+ entry->base.op = op;
+ entry->base.clip = _cairo_clip_copy (clip);
+ entry->ctm = *ctm;
+ entry->ctm_inverse = *ctm_inverse;
+ entry->tolerance = tolerance;
+ entry->antialias = antialias;
+ _cairo_tg_approximate_stroke_extents (&entry->base.extents, op, source,
+ path, style, ctm, ctm_inverse,
+ tolerance, antialias, clip);
+ _cairo_rectangle_union (&journal->extents, &entry->base.extents);
+
+ cairo_list_add_tail (&entry->base.link, &journal->entry_list);
+ journal->num_entries++;
+
+ return CAIRO_INT_STATUS_SUCCESS;
+}
+
+cairo_int_status_t
+_cairo_tg_journal_log_fill (cairo_tg_journal_t *journal,
+ cairo_operator_t op,
+ const cairo_pattern_t *source,
+ const cairo_path_fixed_t *path,
+ cairo_fill_rule_t fill_rule,
+ double tolerance,
+ cairo_antialias_t antialias,
+ const cairo_clip_t *clip)
+{
+ cairo_int_status_t status;
+ cairo_tg_journal_entry_fill_t *entry;
+
+ entry = (cairo_tg_journal_entry_fill_t *)
+ _cairo_tg_journal_entry_alloc (&journal->allocator, CAIRO_TG_JOURNAL_ENTRY_FILL);
+
+ if (unlikely (entry == NULL))
+ return CAIRO_INT_STATUS_NO_MEMORY;
+
+ status = _cairo_tg_journal_pattern_snapshot (&entry->base.source.base, source);
+
+ if (unlikely (status))
+ return status;
+
+ status = _cairo_path_fixed_init_copy (&entry->path, path);
+
+ if (unlikely (status))
+ {
+ _cairo_pattern_fini (&entry->base.source.base);
+ return status;
+ }
+
+ entry->base.op = op;
+ entry->base.clip = _cairo_clip_copy (clip);
+ entry->fill_rule = fill_rule;
+ entry->tolerance = tolerance;
+ entry->antialias = antialias;
+ _cairo_tg_approximate_fill_extents (&entry->base.extents, op, source,
+ path, fill_rule, tolerance, antialias, clip);
+ _cairo_rectangle_union (&journal->extents, &entry->base.extents);
+
+ cairo_list_add_tail (&entry->base.link, &journal->entry_list);
+ journal->num_entries++;
+
+ return CAIRO_INT_STATUS_SUCCESS;
+}
+
+cairo_int_status_t
+_cairo_tg_journal_log_glyphs (cairo_tg_journal_t *journal,
+ cairo_operator_t op,
+ const cairo_pattern_t *source,
+ cairo_glyph_t *glyphs,
+ int num_glyphs,
+ cairo_scaled_font_t *scaled_font,
+ const cairo_clip_t *clip)
+{
+ cairo_int_status_t status;
+ cairo_tg_journal_entry_glyphs_t *entry;
+
+ entry = (cairo_tg_journal_entry_glyphs_t *)
+ _cairo_tg_journal_entry_alloc (&journal->allocator, CAIRO_TG_JOURNAL_ENTRY_GLYPHS);
+
+ if (unlikely (entry == NULL))
+ return CAIRO_INT_STATUS_NO_MEMORY;
+
+ status = _cairo_tg_journal_pattern_snapshot (&entry->base.source.base, source);
+
+ if (unlikely (status))
+ return status;
+
+ entry->scaled_font = cairo_scaled_font_reference (scaled_font);
+
+ if (unlikely (entry->scaled_font == NULL))
+ {
+ _cairo_pattern_fini (&entry->base.source.base);
+ return CAIRO_INT_STATUS_NO_MEMORY;
+ }
+
+ if (num_glyphs)
+ {
+ entry->glyphs = malloc (sizeof (cairo_glyph_t) * num_glyphs);
+
+ if (unlikely (entry->glyphs == NULL))
+ {
+ cairo_scaled_font_destroy (entry->scaled_font);
+ _cairo_pattern_fini (&entry->base.source.base);
+ return CAIRO_INT_STATUS_NO_MEMORY;
+ }
+
+ memcpy (entry->glyphs, glyphs, sizeof (cairo_glyph_t) * num_glyphs);
+ }
+ else
+ {
+ entry->glyphs = NULL;
+ }
+
+ entry->num_glyphs = num_glyphs;
+ entry->base.op = op;
+ entry->base.clip = _cairo_clip_copy (clip);
+ _cairo_tg_approximate_glyphs_extents (&entry->base.extents, op, source,
+ glyphs, num_glyphs, scaled_font, clip);
+ _cairo_rectangle_union (&journal->extents, &entry->base.extents);
+
+ cairo_list_add_tail (&entry->base.link, &journal->entry_list);
+ journal->num_entries++;
+
+ return CAIRO_INT_STATUS_SUCCESS;
+}
+
+void
+_cairo_tg_journal_clear (cairo_tg_journal_t *journal)
+{
+ cairo_tg_journal_entry_t *entry;
+ cairo_tg_journal_entry_t *next;
+
+ cairo_list_foreach_entry_safe (entry, next, cairo_tg_journal_entry_t,
+ &journal->entry_list, link)
+ {
+ _cairo_tg_journal_entry_fini (entry);
+ }
+
+ journal->num_entries = 0;
+ cairo_list_init (&journal->entry_list);
+ _cairo_tg_mono_allocator_reset(&journal->allocator);
+ journal->extents = _cairo_empty_rectangle;
+}
+
+cairo_int_status_t
+_cairo_tg_journal_replay (const cairo_tg_journal_t *journal,
+ void *closure,
+ const cairo_rectangle_int_t *extents,
+ const cairo_tg_journal_replay_funcs_t *funcs)
+{
+ const cairo_tg_journal_entry_t *entry;
+ const cairo_tg_journal_entry_t *next;
+ cairo_int_status_t status;
+
+ cairo_list_foreach_entry_safe (entry, next, cairo_tg_journal_entry_t,
+ &journal->entry_list, link)
+ {
+ if (extents && ! _cairo_rectangle_intersects (extents, &entry->extents))
+ {
+ continue;
+ }
+
+ switch (entry->type)
+ {
+ case CAIRO_TG_JOURNAL_ENTRY_PAINT:
+ {
+ cairo_tg_journal_entry_paint_t *e =
+ (cairo_tg_journal_entry_paint_t *) entry;
+
+ status = funcs->paint (closure, e->base.op, &e->base.source.base,
+ e->base.clip);
+ }
+ break;
+ case CAIRO_TG_JOURNAL_ENTRY_MASK:
+ {
+ cairo_tg_journal_entry_mask_t *e =
+ (cairo_tg_journal_entry_mask_t *) entry;
+
+ status = funcs->mask (closure, e->base.op, &e->base.source.base,
+ &e->mask.base, e->base.clip);
+ }
+ break;
+ case CAIRO_TG_JOURNAL_ENTRY_STROKE:
+ {
+ cairo_tg_journal_entry_stroke_t *e =
+ (cairo_tg_journal_entry_stroke_t *) entry;
+
+ status = funcs->stroke (closure, e->base.op, &e->base.source.base,
+ &e->path, &e->style, &e->ctm, &e->ctm_inverse,
+ e->tolerance, e->antialias, e->base.clip);
+ }
+ break;
+ case CAIRO_TG_JOURNAL_ENTRY_FILL:
+ {
+ cairo_tg_journal_entry_fill_t *e =
+ (cairo_tg_journal_entry_fill_t *) entry;
+
+ status = funcs->fill (closure, e->base.op, &e->base.source.base,
+ &e->path, e->fill_rule,
+ e->tolerance, e->antialias, e->base.clip);
+ }
+ break;
+ case CAIRO_TG_JOURNAL_ENTRY_GLYPHS:
+ {
+ cairo_tg_journal_entry_glyphs_t *e =
+ (cairo_tg_journal_entry_glyphs_t *) entry;
+
+ status = funcs->glyphs (closure, e->base.op, &e->base.source.base,
+ e->glyphs, e->num_glyphs,
+ e->scaled_font, e->base.clip);
+ }
+ break;
+ default:
+ ASSERT_NOT_REACHED;
+ break;
+ }
+
+ if (unlikely (status) && status != CAIRO_INT_STATUS_NOTHING_TO_DO)
+ {
+ assert (0);
+ return status;
+ }
+ }
+
+ return CAIRO_INT_STATUS_SUCCESS;
+}
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