65c8b11604
The plain C bytes array, while convenient from a C perspective, is not well handled by language bindings: the length of the array is not specified, and it's only just implied by the image data size, rowstride, and pixel format. GBytes is a read-only bytes buffer that has an implicit length; we can use it as the storage medium so that language bindings can actually function correctly.
142 lines
5.2 KiB
C
142 lines
5.2 KiB
C
/*
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* Clutter.
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*
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* An OpenGL based 'interactive image' library.
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*
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* Copyright (C) 2012 Intel Corporation.
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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 under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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* Author:
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* Emmanuele Bassi <ebassi@linux.intel.com>
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*/
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#if !defined(__CLUTTER_H_INSIDE__) && !defined(CLUTTER_COMPILATION)
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#error "Only <clutter/clutter.h> can be included directly."
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#endif
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#ifndef __CLUTTER_IMAGE_H__
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#define __CLUTTER_IMAGE_H__
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#include <cogl/cogl.h>
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#include <clutter/clutter-types.h>
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G_BEGIN_DECLS
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#define CLUTTER_TYPE_IMAGE (clutter_image_get_type ())
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#define CLUTTER_IMAGE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), CLUTTER_TYPE_IMAGE, ClutterImage))
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#define CLUTTER_IS_IMAGE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), CLUTTER_TYPE_IMAGE))
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#define CLUTTER_IMAGE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), CLUTTER_TYPE_IMAGE, ClutterImageClass))
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#define CLUTTER_IS_IMAGE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), CLUTTER_TYPE_IMAGE))
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#define CLUTTER_IMAGE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), CLUTTER_TYPE_IMAGE, ClutterImageClass))
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/**
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* CLUTTER_IMAGE_ERROR:
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*
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* Error domain for the #ClutterImageError enumeration.
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*
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* Since: 1.10
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*/
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#define CLUTTER_IMAGE_ERROR (clutter_image_error_quark ())
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typedef struct _ClutterImage ClutterImage;
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typedef struct _ClutterImagePrivate ClutterImagePrivate;
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typedef struct _ClutterImageClass ClutterImageClass;
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/**
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* ClutterImageError:
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* @CLUTTER_IMAGE_ERROR_INVALID_DATA: Invalid data passed to the
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* clutter_image_set_data() function.
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*
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* Error enumeration for #ClutterImage.
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*
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* Since: 1.10
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*/
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typedef enum {
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CLUTTER_IMAGE_ERROR_INVALID_DATA
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} ClutterImageError;
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/**
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* ClutterImage:
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*
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* The <structname>ClutterImage</structname> structure contains
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* private data and should only be accessed using the provided
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* API.
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*
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* Since: 1.10
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*/
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struct _ClutterImage
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{
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/*< private >*/
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GObject parent_instance;
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ClutterImagePrivate *priv;
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};
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/**
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* ClutterImageClass:
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*
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* The <structname>ClutterImageClass</structname> structure contains
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* private data.
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*
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* Since: 1.10
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*/
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struct _ClutterImageClass
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{
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/*< private >*/
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GObjectClass parent_class;
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gpointer _padding[16];
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};
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CLUTTER_AVAILABLE_IN_1_10
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GQuark clutter_image_error_quark (void);
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CLUTTER_AVAILABLE_IN_1_10
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GType clutter_image_get_type (void) G_GNUC_CONST;
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CLUTTER_AVAILABLE_IN_1_10
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ClutterContent * clutter_image_new (void);
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CLUTTER_AVAILABLE_IN_1_10
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gboolean clutter_image_set_data (ClutterImage *image,
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const guint8 *data,
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CoglPixelFormat pixel_format,
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guint width,
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guint height,
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guint row_stride,
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GError **error);
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CLUTTER_AVAILABLE_IN_1_10
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gboolean clutter_image_set_area (ClutterImage *image,
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const guint8 *data,
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CoglPixelFormat pixel_format,
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const cairo_rectangle_int_t *rect,
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guint row_stride,
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GError **error);
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CLUTTER_AVAILABLE_IN_1_12
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gboolean clutter_image_set_bytes (ClutterImage *image,
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GBytes *data,
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CoglPixelFormat pixel_format,
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guint width,
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guint height,
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guint row_stride,
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GError **error);
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#if defined(COGL_ENABLE_EXPERIMENTAL_API) && defined(CLUTTER_ENABLE_EXPERIMENTAL_API)
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CLUTTER_AVAILABLE_IN_1_10
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CoglTexture * clutter_image_get_texture (ClutterImage *image);
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#endif
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G_END_DECLS
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#endif /* __CLUTTER_IMAGE_H__ */
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