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mutter-performance-source/clutter/clutter-image.h
Emmanuele Bassi 65c8b11604 image: Add a data setter using GBytes
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.
2012-06-04 10:34:22 +01:00

141 lines
5.2 KiB
C

/*
* Clutter.
*
* An OpenGL based 'interactive image' library.
*
* Copyright (C) 2012 Intel Corporation.
*
* 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 2 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 this library. If not, see <http://www.gnu.org/licenses/>.
*
* Author:
* Emmanuele Bassi <ebassi@linux.intel.com>
*/
#if !defined(__CLUTTER_H_INSIDE__) && !defined(CLUTTER_COMPILATION)
#error "Only <clutter/clutter.h> can be included directly."
#endif
#ifndef __CLUTTER_IMAGE_H__
#define __CLUTTER_IMAGE_H__
#include <cogl/cogl.h>
#include <clutter/clutter-types.h>
G_BEGIN_DECLS
#define CLUTTER_TYPE_IMAGE (clutter_image_get_type ())
#define CLUTTER_IMAGE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), CLUTTER_TYPE_IMAGE, ClutterImage))
#define CLUTTER_IS_IMAGE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), CLUTTER_TYPE_IMAGE))
#define CLUTTER_IMAGE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), CLUTTER_TYPE_IMAGE, ClutterImageClass))
#define CLUTTER_IS_IMAGE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), CLUTTER_TYPE_IMAGE))
#define CLUTTER_IMAGE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), CLUTTER_TYPE_IMAGE, ClutterImageClass))
/**
* CLUTTER_IMAGE_ERROR:
*
* Error domain for the #ClutterImageError enumeration.
*
* Since: 1.10
*/
#define CLUTTER_IMAGE_ERROR (clutter_image_error_quark ())
typedef struct _ClutterImage ClutterImage;
typedef struct _ClutterImagePrivate ClutterImagePrivate;
typedef struct _ClutterImageClass ClutterImageClass;
/**
* ClutterImageError:
* @CLUTTER_IMAGE_ERROR_INVALID_DATA: Invalid data passed to the
* clutter_image_set_data() function.
*
* Error enumeration for #ClutterImage.
*
* Since: 1.10
*/
typedef enum {
CLUTTER_IMAGE_ERROR_INVALID_DATA
} ClutterImageError;
/**
* ClutterImage:
*
* The <structname>ClutterImage</structname> structure contains
* private data and should only be accessed using the provided
* API.
*
* Since: 1.10
*/
struct _ClutterImage
{
/*< private >*/
GObject parent_instance;
ClutterImagePrivate *priv;
};
/**
* ClutterImageClass:
*
* The <structname>ClutterImageClass</structname> structure contains
* private data.
*
* Since: 1.10
*/
struct _ClutterImageClass
{
/*< private >*/
GObjectClass parent_class;
gpointer _padding[16];
};
CLUTTER_AVAILABLE_IN_1_10
GQuark clutter_image_error_quark (void);
CLUTTER_AVAILABLE_IN_1_10
GType clutter_image_get_type (void) G_GNUC_CONST;
CLUTTER_AVAILABLE_IN_1_10
ClutterContent * clutter_image_new (void);
CLUTTER_AVAILABLE_IN_1_10
gboolean clutter_image_set_data (ClutterImage *image,
const guint8 *data,
CoglPixelFormat pixel_format,
guint width,
guint height,
guint row_stride,
GError **error);
CLUTTER_AVAILABLE_IN_1_10
gboolean clutter_image_set_area (ClutterImage *image,
const guint8 *data,
CoglPixelFormat pixel_format,
const cairo_rectangle_int_t *rect,
guint row_stride,
GError **error);
CLUTTER_AVAILABLE_IN_1_12
gboolean clutter_image_set_bytes (ClutterImage *image,
GBytes *data,
CoglPixelFormat pixel_format,
guint width,
guint height,
guint row_stride,
GError **error);
#if defined(COGL_ENABLE_EXPERIMENTAL_API) && defined(CLUTTER_ENABLE_EXPERIMENTAL_API)
CLUTTER_AVAILABLE_IN_1_10
CoglTexture * clutter_image_get_texture (ClutterImage *image);
#endif
G_END_DECLS
#endif /* __CLUTTER_IMAGE_H__ */