mirror of
https://github.com/brl/mutter.git
synced 2024-11-23 00:20:42 -05:00
1b2dd815b4
This adds much more comprehensive support for gobject-introspection based bindings by registering all objects as fundamental types that inherit from CoglObject, and all structs as boxed types. Co-Author: Robert Bragg <robert@linux.intel.com> Reviewed-by: Neil Roberts <neil@linux.intel.com>
259 lines
9.2 KiB
C
259 lines
9.2 KiB
C
/*
|
|
* Cogl
|
|
*
|
|
* A Low Level GPU Graphics and Utilities API
|
|
*
|
|
* Copyright (C) 2013 Intel Corporation.
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person
|
|
* obtaining a copy of this software and associated documentation
|
|
* files (the "Software"), to deal in the Software without
|
|
* restriction, including without limitation the rights to use, copy,
|
|
* modify, merge, publish, distribute, sublicense, and/or sell copies
|
|
* of the Software, and to permit persons to whom the Software is
|
|
* furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be
|
|
* included in all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
|
|
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
|
|
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
|
|
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
|
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
|
|
* SOFTWARE.
|
|
*
|
|
*
|
|
*/
|
|
|
|
#if !defined(__COGL_H_INSIDE__) && !defined(COGL_COMPILATION)
|
|
#error "Only <cogl/cogl.h> can be included directly."
|
|
#endif
|
|
|
|
#ifndef _COGL_ATLAS_TEXTURE_H_
|
|
#define _COGL_ATLAS_TEXTURE_H_
|
|
|
|
#include <cogl/cogl-context.h>
|
|
|
|
#ifdef COGL_HAS_GTYPE_SUPPORT
|
|
#include <glib-object.h>
|
|
#endif
|
|
|
|
COGL_BEGIN_DECLS
|
|
|
|
/**
|
|
* SECTION:cogl-atlas-texture
|
|
* @short_description: Functions for managing textures in Cogl's global
|
|
* set of texture atlases
|
|
*
|
|
* A texture atlas is a texture that contains many smaller images that
|
|
* an application is interested in. These are packed together as a way
|
|
* of optimizing drawing with those images by avoiding the costs of
|
|
* repeatedly telling the hardware to change what texture it should
|
|
* sample from. This can enable more geometry to be batched together
|
|
* into few draw calls.
|
|
*
|
|
* Each #CoglContext has an shared, pool of texture atlases that are
|
|
* are managed by Cogl.
|
|
*
|
|
* This api lets applications upload texture data into one of Cogl's
|
|
* shared texture atlases using a high-level #CoglAtlasTexture which
|
|
* represents a sub-region of one of these atlases.
|
|
*
|
|
* <note>A #CoglAtlasTexture is a high-level meta texture which has
|
|
* some limitations to be aware of. Please see the documentation for
|
|
* #CoglMetaTexture for more details.</note>
|
|
*/
|
|
|
|
|
|
typedef struct _CoglAtlasTexture CoglAtlasTexture;
|
|
#define COGL_ATLAS_TEXTURE(tex) ((CoglAtlasTexture *) tex)
|
|
|
|
#ifdef COGL_HAS_GTYPE_SUPPORT
|
|
/**
|
|
* cogl_atlas_texture_get_gtype:
|
|
*
|
|
* Returns: a #GType that can be used with the GLib type system.
|
|
*/
|
|
GType cogl_atlas_texture_get_gtype (void);
|
|
#endif
|
|
|
|
/**
|
|
* cogl_atlas_texture_new_with_size:
|
|
* @ctx: A #CoglContext
|
|
* @width: The width of your atlased texture.
|
|
* @height: The height of your atlased texture.
|
|
*
|
|
* Creates a #CoglAtlasTexture with a given @width and @height. A
|
|
* #CoglAtlasTexture represents a sub-region within one of Cogl's
|
|
* shared texture atlases.
|
|
*
|
|
* The storage for the texture is not allocated before this function
|
|
* returns. You can call cogl_texture_allocate() to explicitly
|
|
* allocate the underlying storage or let Cogl automatically allocate
|
|
* storage lazily.
|
|
*
|
|
* The texture is still configurable until it has been allocated so
|
|
* for example you can influence the internal format of the texture
|
|
* using cogl_texture_set_components() and
|
|
* cogl_texture_set_premultiplied().
|
|
*
|
|
* <note>Allocate call can fail if Cogl considers the internal
|
|
* format to be incompatible with the format of its internal
|
|
* atlases.</note>
|
|
*
|
|
* <note>The returned #CoglAtlasTexture is a high-level meta-texture
|
|
* with some limitations. See the documentation for #CoglMetaTexture
|
|
* for more details.</note>
|
|
*
|
|
* Returns: (transfer full): A new #CoglAtlasTexture object.
|
|
* Since: 1.16
|
|
* Stability: unstable
|
|
*/
|
|
CoglAtlasTexture *
|
|
cogl_atlas_texture_new_with_size (CoglContext *ctx,
|
|
int width,
|
|
int height);
|
|
|
|
/**
|
|
* cogl_atlas_texture_new_from_file:
|
|
* @ctx: A #CoglContext
|
|
* @filename: the file to load
|
|
* @error: A #CoglError to catch exceptional errors or %NULL
|
|
*
|
|
* Creates a #CoglAtlasTexture from an image file. A #CoglAtlasTexture
|
|
* represents a sub-region within one of Cogl's shared texture
|
|
* atlases.
|
|
*
|
|
* The storage for the texture is not allocated before this function
|
|
* returns. You can call cogl_texture_allocate() to explicitly
|
|
* allocate the underlying storage or let Cogl automatically allocate
|
|
* storage lazily.
|
|
*
|
|
* The texture is still configurable until it has been allocated so
|
|
* for example you can influence the internal format of the texture
|
|
* using cogl_texture_set_components() and
|
|
* cogl_texture_set_premultiplied().
|
|
*
|
|
* <note>Allocate call can fail if Cogl considers the internal
|
|
* format to be incompatible with the format of its internal
|
|
* atlases.</note>
|
|
*
|
|
* <note>The returned #CoglAtlasTexture is a high-level meta-texture
|
|
* with some limitations. See the documentation for #CoglMetaTexture
|
|
* for more details.</note>
|
|
*
|
|
* Return value: (transfer full): A new #CoglAtlasTexture object or
|
|
* %NULL on failure and @error will be updated.
|
|
* Since: 1.16
|
|
* Stability: unstable
|
|
*/
|
|
CoglAtlasTexture *
|
|
cogl_atlas_texture_new_from_file (CoglContext *ctx,
|
|
const char *filename,
|
|
CoglError **error);
|
|
|
|
/**
|
|
* cogl_atlas_texture_new_from_data:
|
|
* @ctx: A #CoglContext
|
|
* @width: width of texture in pixels
|
|
* @height: height of texture in pixels
|
|
* @format: the #CoglPixelFormat the buffer is stored in in RAM
|
|
* @rowstride: the memory offset in bytes between the start of each
|
|
* row in @data. A value of 0 will make Cogl automatically
|
|
* calculate @rowstride from @width and @format.
|
|
* @data: pointer to the memory region where the source buffer resides
|
|
* @error: A #CoglError to catch exceptional errors or %NULL
|
|
*
|
|
* Creates a new #CoglAtlasTexture texture based on data residing in
|
|
* memory. A #CoglAtlasTexture represents a sub-region within one of
|
|
* Cogl's shared texture atlases.
|
|
*
|
|
* <note>This api will always immediately allocate GPU memory for the
|
|
* texture and upload the given data so that the @data pointer does
|
|
* not need to remain valid once this function returns. This means it
|
|
* is not possible to configure the texture before it is allocated. If
|
|
* you do need to configure the texture before allocation (to specify
|
|
* constraints on the internal format for example) then you can
|
|
* instead create a #CoglBitmap for your data and use
|
|
* cogl_atlas_texture_new_from_bitmap() or use
|
|
* cogl_atlas_texture_new_with_size() and then upload data using
|
|
* cogl_texture_set_data()</note>
|
|
*
|
|
* <note>Allocate call can fail if Cogl considers the internal
|
|
* format to be incompatible with the format of its internal
|
|
* atlases.</note>
|
|
*
|
|
* <note>The returned #CoglAtlasTexture is a high-level
|
|
* meta-texture with some limitations. See the documentation for
|
|
* #CoglMetaTexture for more details.</note>
|
|
*
|
|
* Return value: (transfer full): A new #CoglAtlasTexture object or
|
|
* %NULL on failure and @error will be updated.
|
|
* Since: 1.16
|
|
* Stability: unstable
|
|
*/
|
|
CoglAtlasTexture *
|
|
cogl_atlas_texture_new_from_data (CoglContext *ctx,
|
|
int width,
|
|
int height,
|
|
CoglPixelFormat format,
|
|
int rowstride,
|
|
const uint8_t *data,
|
|
CoglError **error);
|
|
|
|
/**
|
|
* cogl_atlas_texture_new_from_bitmap:
|
|
* @bitmap: A #CoglBitmap
|
|
*
|
|
* Creates a new #CoglAtlasTexture texture based on data residing in a
|
|
* @bitmap. A #CoglAtlasTexture represents a sub-region within one of
|
|
* Cogl's shared texture atlases.
|
|
*
|
|
* The storage for the texture is not allocated before this function
|
|
* returns. You can call cogl_texture_allocate() to explicitly
|
|
* allocate the underlying storage or preferably let Cogl
|
|
* automatically allocate storage lazily when it may know more about
|
|
* how the texture is being used and can optimize how it is allocated.
|
|
*
|
|
* The texture is still configurable until it has been allocated so
|
|
* for example you can influence the internal format of the texture
|
|
* using cogl_texture_set_components() and
|
|
* cogl_texture_set_premultiplied().
|
|
*
|
|
* <note>Allocate call can fail if Cogl considers the internal
|
|
* format to be incompatible with the format of its internal
|
|
* atlases.</note>
|
|
*
|
|
* <note>The returned #CoglAtlasTexture is a high-level meta-texture
|
|
* with some limitations. See the documentation for #CoglMetaTexture
|
|
* for more details.</note>
|
|
*
|
|
* Returns: (transfer full): A new #CoglAtlasTexture object.
|
|
* Since: 1.16
|
|
* Stability: unstable
|
|
*/
|
|
CoglAtlasTexture *
|
|
cogl_atlas_texture_new_from_bitmap (CoglBitmap *bmp);
|
|
|
|
/**
|
|
* cogl_is_atlas_texture:
|
|
* @object: a #CoglObject
|
|
*
|
|
* Checks whether the given object references a #CoglAtlasTexture
|
|
*
|
|
* Return value: %TRUE if the passed object represents an atlas
|
|
* texture and %FALSE otherwise
|
|
*
|
|
* Since: 1.16
|
|
* Stability: Unstable
|
|
*/
|
|
CoglBool
|
|
cogl_is_atlas_texture (void *object);
|
|
|
|
COGL_END_DECLS
|
|
|
|
#endif /* _COGL_ATLAS_TEXTURE_H_ */
|