[gegl] buffer: add GeglTileBackendBuffer
- From: N/A <ell src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gegl] buffer: add GeglTileBackendBuffer
- Date: Thu, 3 May 2018 20:23:44 +0000 (UTC)
commit d67dc06639df55eb2f8cd9bb64e20608b5421d27
Author: Ell <ell_se yahoo com>
Date: Thu May 3 16:06:26 2018 -0400
buffer: add GeglTileBackendBuffer
GeglTileBackendBuffer is a tile backend that loads/stores its tiles
from/to an underlying GeglBuffer.
gegl/buffer/Makefile.am | 2 +
gegl/buffer/gegl-tile-backend-buffer.c | 299 ++++++++++++++++++++++++++++++++
gegl/buffer/gegl-tile-backend-buffer.h | 56 ++++++
3 files changed, 357 insertions(+), 0 deletions(-)
---
diff --git a/gegl/buffer/Makefile.am b/gegl/buffer/Makefile.am
index 80ac65e..5c96011 100644
--- a/gegl/buffer/Makefile.am
+++ b/gegl/buffer/Makefile.am
@@ -43,6 +43,7 @@ libbuffer_la_SOURCES = \
gegl-tile-source.c \
gegl-tile-storage.c \
gegl-tile-backend.c \
+ gegl-tile-backend-buffer.c \
gegl-tile-backend-file-async.c \
gegl-tile-backend-ram.c \
gegl-tile-backend-swap.c \
@@ -74,6 +75,7 @@ libbuffer_la_SOURCES = \
gegl-tile-source.h \
gegl-tile-storage.h \
gegl-tile-backend.h \
+ gegl-tile-backend-buffer.h \
gegl-tile-backend-file.h \
gegl-tile-backend-swap.h \
gegl-tile-backend-ram.h \
diff --git a/gegl/buffer/gegl-tile-backend-buffer.c b/gegl/buffer/gegl-tile-backend-buffer.c
new file mode 100644
index 0000000..b060ab2
--- /dev/null
+++ b/gegl/buffer/gegl-tile-backend-buffer.c
@@ -0,0 +1,299 @@
+/* This file is part of GEGL.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with GEGL; if not, see <http://www.gnu.org/licenses/>.
+ *
+ * Copyright 2018 Ell
+ */
+
+#include "config.h"
+
+#include <glib-object.h>
+
+#include "gegl-buffer-types.h"
+
+#include "gegl-config.h"
+
+#include "gegl-buffer-backend.h"
+#include "gegl-buffer-private.h"
+#include "gegl-tile-backend.h"
+#include "gegl-tile-backend-buffer.h"
+#include "gegl-tile-handler-cache.h"
+#include "gegl-tile-storage.h"
+
+
+enum
+{
+ PROP_0,
+ PROP_BUFFER
+};
+
+
+/* local function prototypes */
+
+static void gegl_tile_backend_buffer_dispose (GObject *object);
+static void gegl_tile_backend_buffer_set_property (GObject *object,
+ guint property_id,
+ const GValue *value,
+ GParamSpec *pspec);
+static void gegl_tile_backend_buffer_get_property (GObject *object,
+ guint property_id,
+ GValue *value,
+ GParamSpec *pspec);
+
+static gpointer gegl_tile_backend_buffer_command (GeglTileSource *tile_source,
+ GeglTileCommand command,
+ gint x,
+ gint y,
+ gint z,
+ gpointer data);
+
+static GeglTile * gegl_tile_backend_buffer_get_tile (GeglTileBackendBuffer *tile_backend_buffer,
+ gint x,
+ gint y,
+ gint z);
+static void gegl_tile_backend_buffer_set_tile (GeglTileBackendBuffer *tile_backend_buffer,
+ GeglTile *tile,
+ gint x,
+ gint y,
+ gint z);
+static gpointer gegl_tile_backend_buffer_forward_command (GeglTileBackendBuffer *tile_backend_buffer,
+ GeglTileCommand command,
+ gint x,
+ gint y,
+ gint z,
+ gpointer data);
+
+
+G_DEFINE_TYPE (GeglTileBackendBuffer, gegl_tile_backend_buffer, GEGL_TYPE_TILE_BACKEND)
+
+#define parent_class gegl_tile_backend_buffer_parent_class
+
+
+/* private functions */
+
+
+static void
+gegl_tile_backend_buffer_class_init (GeglTileBackendBufferClass *klass)
+{
+ GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
+
+ gobject_class->dispose = gegl_tile_backend_buffer_dispose;
+ gobject_class->set_property = gegl_tile_backend_buffer_set_property;
+ gobject_class->get_property = gegl_tile_backend_buffer_get_property;
+
+ g_object_class_install_property (gobject_class, PROP_BUFFER,
+ g_param_spec_object ("buffer", NULL, NULL,
+ GEGL_TYPE_BUFFER,
+ G_PARAM_READWRITE |
+ G_PARAM_CONSTRUCT_ONLY));
+}
+
+static void
+gegl_tile_backend_buffer_init (GeglTileBackendBuffer *tile_backend_buffer)
+{
+ GeglTileSource *tile_source = GEGL_TILE_SOURCE (tile_backend_buffer);
+
+ tile_source->command = gegl_tile_backend_buffer_command;
+}
+
+static void
+gegl_tile_backend_buffer_dispose (GObject *object)
+{
+ GeglTileBackendBuffer *tile_backend_buffer = GEGL_TILE_BACKEND_BUFFER (object);
+
+ g_clear_object (&tile_backend_buffer->buffer);
+
+ G_OBJECT_CLASS (parent_class)->dispose (object);
+}
+
+static void
+gegl_tile_backend_buffer_set_property (GObject *object,
+ guint property_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ GeglTileBackendBuffer *tile_backend_buffer = GEGL_TILE_BACKEND_BUFFER (object);
+
+ switch (property_id)
+ {
+ case PROP_BUFFER:
+ if (tile_backend_buffer->buffer)
+ g_object_unref (tile_backend_buffer->buffer);
+
+ tile_backend_buffer->buffer = g_value_dup_object (value);
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ break;
+ }
+}
+
+static void
+gegl_tile_backend_buffer_get_property (GObject *object,
+ guint property_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ GeglTileBackendBuffer *tile_backend_buffer = GEGL_TILE_BACKEND_BUFFER (object);
+
+ switch (property_id)
+ {
+ case PROP_BUFFER:
+ g_value_set_object (value, tile_backend_buffer->buffer);
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
+ break;
+ }
+}
+
+static gpointer
+gegl_tile_backend_buffer_command (GeglTileSource *tile_source,
+ GeglTileCommand command,
+ gint x,
+ gint y,
+ gint z,
+ gpointer data)
+{
+ GeglTileBackendBuffer *tile_backend_buffer = GEGL_TILE_BACKEND_BUFFER (tile_source);
+
+ if (! tile_backend_buffer->buffer)
+ return NULL;
+
+ switch (command)
+ {
+ case GEGL_TILE_GET:
+ return gegl_tile_backend_buffer_get_tile (tile_backend_buffer,
+ x, y, z);
+
+ case GEGL_TILE_SET:
+ gegl_tile_backend_buffer_set_tile (tile_backend_buffer,
+ data, x, y, z);
+
+ return NULL;
+
+ case GEGL_TILE_VOID:
+ case GEGL_TILE_EXIST:
+ return gegl_tile_backend_buffer_forward_command (tile_backend_buffer,
+ command, x, y, z, data);
+
+ default:
+ g_return_val_if_fail (command >= 0 && command < GEGL_TILE_LAST_COMMAND,
+ NULL);
+
+ return NULL;
+ }
+}
+
+static GeglTile *
+gegl_tile_backend_buffer_get_tile (GeglTileBackendBuffer *tile_backend_buffer,
+ gint x,
+ gint y,
+ gint z)
+{
+ GeglBuffer *buffer = tile_backend_buffer->buffer;
+ GeglTile *src_tile;
+ GeglTile *tile = NULL;
+
+ src_tile = gegl_buffer_get_tile (buffer, x, y, z);
+
+ if (src_tile)
+ {
+ tile = gegl_tile_dup (src_tile);
+
+ gegl_tile_unref (src_tile);
+
+ gegl_tile_mark_as_stored (tile);
+ }
+
+ return tile;
+}
+
+static void
+gegl_tile_backend_buffer_set_tile (GeglTileBackendBuffer *tile_backend_buffer,
+ GeglTile *tile,
+ gint x,
+ gint y,
+ gint z)
+{
+ GeglBuffer *buffer = tile_backend_buffer->buffer;
+ GeglTileHandlerCache *cache = buffer->tile_storage->cache;
+ GeglTile *dest_tile;
+
+ dest_tile = gegl_tile_dup (tile);
+
+ if (gegl_config_threads()>1)
+ g_rec_mutex_lock (&buffer->tile_storage->mutex);
+
+ gegl_tile_handler_cache_insert (cache, dest_tile, x, y, z);
+
+ if (gegl_config_threads()>1)
+ g_rec_mutex_unlock (&buffer->tile_storage->mutex);
+
+ gegl_tile_unref (dest_tile);
+
+ if (buffer->changed_signal_connections)
+ {
+ GeglRectangle rect;
+
+ rect.width = buffer->tile_width >> z;
+ rect.height = buffer->tile_height >> z;
+ rect.x = x * rect.width - buffer->shift_x;
+ rect.y = y * rect.height - buffer->shift_y;
+
+ gegl_buffer_emit_changed_signal (buffer, &rect);
+ }
+}
+
+static gpointer
+gegl_tile_backend_buffer_forward_command (GeglTileBackendBuffer *tile_backend_buffer,
+ GeglTileCommand command,
+ gint x,
+ gint y,
+ gint z,
+ gpointer data)
+{
+ GeglBuffer *buffer = tile_backend_buffer->buffer;
+ GeglTileSource *source = GEGL_TILE_SOURCE (buffer);
+ gpointer result;
+
+ if (gegl_config_threads()>1)
+ g_rec_mutex_lock (&buffer->tile_storage->mutex);
+
+ result = gegl_tile_source_command (source, command, x, y, z, data);
+
+ if (gegl_config_threads()>1)
+ g_rec_mutex_unlock (&buffer->tile_storage->mutex);
+
+ return result;
+}
+
+
+/* public functions */
+
+
+GeglTileBackend *
+gegl_tile_backend_buffer_new (GeglBuffer *buffer)
+{
+ g_return_val_if_fail (GEGL_IS_BUFFER (buffer), NULL);
+
+ return g_object_new (GEGL_TYPE_TILE_BACKEND_BUFFER,
+ "tile-width", buffer->tile_width,
+ "tile-height", buffer->tile_height,
+ "format", buffer->soft_format,
+ "buffer", buffer,
+ NULL);
+}
diff --git a/gegl/buffer/gegl-tile-backend-buffer.h b/gegl/buffer/gegl-tile-backend-buffer.h
new file mode 100644
index 0000000..c95ecd6
--- /dev/null
+++ b/gegl/buffer/gegl-tile-backend-buffer.h
@@ -0,0 +1,56 @@
+/* This file is part of GEGL.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with GEGL; if not, see <http://www.gnu.org/licenses/>.
+ *
+ * Copyright 2018 Ell
+ */
+
+#ifndef __GEGL_TILE_BACKEND_BUFFER_H__
+#define __GEGL_TILE_BACKEND_BUFFER_H__
+
+#include <glib.h>
+#include "gegl-tile-backend.h"
+
+G_BEGIN_DECLS
+
+#define GEGL_TYPE_TILE_BACKEND_BUFFER (gegl_tile_backend_buffer_get_type ())
+#define GEGL_TILE_BACKEND_BUFFER(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj),
GEGL_TYPE_TILE_BACKEND_BUFFER, GeglTileBackendBuffer))
+#define GEGL_TILE_BACKEND_BUFFER_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass),
GEGL_TYPE_TILE_BACKEND_BUFFER, GeglTileBackendBufferClass))
+#define GEGL_IS_TILE_BACKEND_BUFFER(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj),
GEGL_TYPE_TILE_BACKEND_BUFFER))
+#define GEGL_IS_TILE_BACKEND_BUFFER_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass),
GEGL_TYPE_TILE_BACKEND_BUFFER))
+#define GEGL_TILE_BACKEND_BUFFER_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj),
GEGL_TYPE_TILE_BACKEND_BUFFER, GeglTileBackendBufferClass))
+
+
+typedef struct _GeglTileBackendBuffer GeglTileBackendBuffer;
+typedef struct _GeglTileBackendBufferClass GeglTileBackendBufferClass;
+
+struct _GeglTileBackendBuffer
+{
+ GeglTileBackend parent_instance;
+
+ GeglBuffer *buffer;
+};
+
+struct _GeglTileBackendBufferClass
+{
+ GeglTileBackendClass parent_class;
+};
+
+GType gegl_tile_backend_buffer_get_type (void) G_GNUC_CONST;
+
+GeglTileBackend * gegl_tile_backend_buffer_new (GeglBuffer *buffer);
+
+G_END_DECLS
+
+#endif
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