[gnome-photos/wip/rishi/misc-fixes] Add a sink to guess the size of a GeglBuffer after JPEG compression
- From: Debarshi Ray <debarshir src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [gnome-photos/wip/rishi/misc-fixes] Add a sink to guess the size of a GeglBuffer after JPEG compression
- Date: Wed, 23 Dec 2015 10:13:10 +0000 (UTC)
commit a9ecea072c02f51182c03c5284be3fed1b6d6edf
Author: Debarshi Ray <debarshir gnome org>
Date: Wed Dec 23 11:10:42 2015 +0100
Add a sink to guess the size of a GeglBuffer after JPEG compression
src/photos-operation-jpg-guess-sizes.c | 154 ++++++++++++++++++++++++++++++++
src/photos-operation-jpg-guess-sizes.h | 45 +++++++++
2 files changed, 199 insertions(+), 0 deletions(-)
---
diff --git a/src/photos-operation-jpg-guess-sizes.c b/src/photos-operation-jpg-guess-sizes.c
new file mode 100644
index 0000000..b4e04d3
--- /dev/null
+++ b/src/photos-operation-jpg-guess-sizes.c
@@ -0,0 +1,154 @@
+/*
+ * Photos - access, organize and share your photos on GNOME
+ * Copyright © 2015 Red Hat, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+
+#include "config.h"
+
+#include <babl/babl.h>
+#include <gegl.h>
+#include <gegl-plugin.h>
+
+#include "photos-operation-jpg-guess-sizes.h"
+
+
+struct _PhotosOperationJpgGuessSizes
+{
+ GeglOperationSink parent_instance;
+ gboolean progressive;
+ gint quality;
+};
+
+struct _PhotosOperationJpgGuessSizesClass
+{
+ GeglOperationSinkClass parent_class;
+};
+
+enum
+{
+ PROP_0,
+ PROP_PROGRESSIVE,
+ PROP_QUALITY
+};
+
+
+G_DEFINE_TYPE (PhotosOperationJpgGuessSizes, photos_operation_jpg_guess_sizes, GEGL_TYPE_OPERATION_SINK);
+
+
+static gboolean
+photos_operation_jpg_guess_sizes_process (GeglOperation *operation,
+ GeglBuffer *input,
+ const GeglRectangle *roi,
+ gint level)
+{
+ return TRUE;
+}
+
+
+static void
+photos_operation_jpg_guess_sizes_get_property (GObject *object, guint prop_id, GValue *value, GParamSpec
*pspec)
+{
+ PhotosOperationJpgGuessSizes *self = PHOTOS_OPERATION_JPG_GUESS_SIZES (object);
+
+ switch (prop_id)
+ {
+ case PROP_PROGRESSIVE:
+ g_value_set_boolean (value, self->progressive);
+ break;
+
+ case PROP_QUALITY:
+ g_value_set_int (value, self->quality);
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+
+static void
+photos_operation_jpg_guess_sizes_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ PhotosOperationJpgGuessSizes *self = PHOTOS_OPERATION_JPG_GUESS_SIZES (object);
+
+ switch (prop_id)
+ {
+ case PROP_PROGRESSIVE:
+ self->progressive = g_value_get_boolean (value);
+ break;
+
+ case PROP_QUALITY:
+ self->quality = g_value_get_int (value);
+ break;
+
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+
+static void
+photos_operation_jpg_guess_sizes_init (PhotosOperationJpgGuessSizes *self)
+{
+}
+
+
+static void
+photos_operation_jpg_guess_sizes_class_init (PhotosOperationJpgGuessSizesClass *class)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (class);
+ GeglOperationClass *operation_class = GEGL_OPERATION_CLASS (class);
+ GeglOperationSinkClass *sink_class = GEGL_OPERATION_SINK_CLASS (class);
+
+ operation_class->opencl_support = FALSE;
+ sink_class->needs_full = TRUE;
+
+ object_class->get_property = photos_operation_jpg_guess_sizes_get_property;
+ object_class->set_property = photos_operation_jpg_guess_sizes_set_property;
+ sink_class->process = photos_operation_jpg_guess_sizes_process;
+
+ g_object_class_install_property (object_class,
+ PROP_PROGRESSIVE,
+ g_param_spec_int ("progressive",
+ "Progressive",
+ "Create progressive JPEG images",
+ TRUE,
+ G_PARAM_CONSTRUCT | G_PARAM_READWRITE));
+
+ g_object_class_install_property (object_class,
+ PROP_QUALITY,
+ g_param_spec_int ("quality",
+ "Quality",
+ "JPEG compression quality (between 1 and 100)",
+ 1,
+ 100,
+ 90,
+ G_PARAM_CONSTRUCT | G_PARAM_READWRITE));
+
+ gegl_operation_class_set_keys (operation_class,
+ "name", "photos:jpg-guess-sizes",
+ "title", "JPEG Guess Sizes",
+ "description", "Guesses the size of a GeglBuffer after applying JPEG
compression",
+ NULL);
+}
diff --git a/src/photos-operation-jpg-guess-sizes.h b/src/photos-operation-jpg-guess-sizes.h
new file mode 100644
index 0000000..1259c65
--- /dev/null
+++ b/src/photos-operation-jpg-guess-sizes.h
@@ -0,0 +1,45 @@
+/*
+ * Photos - access, organize and share your photos on GNOME
+ * Copyright © 2015 Red Hat, Inc.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
+ * 02110-1301, USA.
+ */
+
+#ifndef PHOTOS_OPERATION_JPG_GUESS_SIZES_H
+#define PHOTOS_OPERATION_JPG_GUESS_SIZES_H
+
+#include <glib-object.h>
+
+G_BEGIN_DECLS
+
+#define PHOTOS_TYPE_OPERATION_JPG_GUESS_SIZES (photos_operation_jpg_guess_sizes_get_type ())
+
+#define PHOTOS_OPERATION_JPG_GUESS_SIZES(obj) \
+ (G_TYPE_CHECK_INSTANCE_CAST ((obj), \
+ PHOTOS_TYPE_OPERATION_JPG_GUESS_SIZES, PhotosOperationJpgGuessSizes))
+
+#define PHOTOS_IS_OPERATION_JPG_GUESS_SIZES(obj) \
+ (G_TYPE_CHECK_INSTANCE_TYPE ((obj), \
+ PHOTOS_TYPE_OPERATION_JPG_GUESS_SIZES))
+
+typedef struct _PhotosOperationJpgGuessSizes PhotosOperationJpgGuessSizes;
+typedef struct _PhotosOperationJpgGuessSizesClass PhotosOperationJpgGuessSizesClass;
+
+GType photos_operation_jpg_guess_sizes_get_type (void) G_GNUC_CONST;
+
+G_END_DECLS
+
+#endif /* PHOTOS_OPERATION_JPG_GUESS_SIZES_H */
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