a0441778ad
Since the Cogl 1.18 branch is actively maintained in parallel with the
master branch; this is a counter part to commit 1b83ef938fc16b which
re-licensed the master branch to use the MIT license.
This re-licensing is a follow up to the proposal that was sent to the
Cogl mailing list:
http://lists.freedesktop.org/archives/cogl/2013-December/001465.html
Note: there was a copyright assignment policy in place for Clutter (and
therefore Cogl which was part of Clutter at the time) until the 11th of
June 2010 and so we only checked the details after that point (commit
0bbf50f905)
For each file, authors were identified via this Git command:
$ git blame -p -C -C -C20 -M -M10 0bbf50f905..HEAD
We received blanket approvals for re-licensing all Red Hat and Collabora
contributions which reduced how many people needed to be contacted
individually:
- http://lists.freedesktop.org/archives/cogl/2013-December/001470.html
- http://lists.freedesktop.org/archives/cogl/2014-January/001536.html
Individual approval requests were sent to all the other identified authors
who all confirmed the re-license on the Cogl mailinglist:
http://lists.freedesktop.org/archives/cogl/2014-January
As well as updating the copyright header in all sources files, the
COPYING file has been updated to reflect the license change and also
document the other licenses used in Cogl such as the SGI Free Software
License B, version 2.0 and the 3-clause BSD license.
This patch was not simply cherry-picked from master; but the same
methodology was used to check the source files.
128 lines
4.2 KiB
C
128 lines
4.2 KiB
C
/*
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* Cogl
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*
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* A Low Level GPU Graphics and Utilities API
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*
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* Copyright (C) 2010 Intel Corporation.
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*
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* Permission is hereby granted, free of charge, to any person
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* obtaining a copy of this software and associated documentation
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* files (the "Software"), to deal in the Software without
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* restriction, including without limitation the rights to use, copy,
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* modify, merge, publish, distribute, sublicense, and/or sell copies
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* of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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* Authors:
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* Neil Roberts <neil@linux.intel.com>
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*/
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#if !defined(__COGL_H_INSIDE__) && !defined(COGL_COMPILATION)
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#error "Only <cogl/cogl.h> can be included directly."
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#endif
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#ifndef __COGL_SUB_TEXTURE_H
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#define __COGL_SUB_TEXTURE_H
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COGL_BEGIN_DECLS
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/**
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* SECTION:cogl-sub-texture
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* @short_description: Functions for creating and manipulating
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* sub-textures.
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*
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* These functions allow high-level textures to be created that
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* represent a sub-region of another texture. For example these
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* can be used to implement custom texture atlasing schemes.
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*/
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#define COGL_SUB_TEXTURE(tex) ((CoglSubTexture *) tex)
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typedef struct _CoglSubTexture CoglSubTexture;
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/**
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* cogl_sub_texture_new:
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* @ctx: A #CoglContext pointer
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* @parent_texture: The full texture containing a sub-region you want
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* to make a #CoglSubTexture from.
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* @sub_x: The top-left x coordinate of the parent region to make
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* a texture from.
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* @sub_y: The top-left y coordinate of the parent region to make
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* a texture from.
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* @sub_width: The width of the parent region to make a texture from.
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* @sub_height: The height of the parent region to make a texture
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* from.
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*
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* Creates a high-level #CoglSubTexture representing a sub-region of
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* any other #CoglTexture. The sub-region must strictly lye within the
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* bounds of the @parent_texture. The returned texture implements the
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* #CoglMetaTexture interface because it's not a low level texture
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* that hardware can understand natively.
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*
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* <note>Remember: Unless you are using high level drawing APIs such
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* as cogl_rectangle() or other APIs documented to understand the
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* #CoglMetaTexture interface then you need to use the
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* #CoglMetaTexture interface to resolve a #CoglSubTexture into a
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* low-level texture before drawing.</note>
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*
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* Return value: (transfer full): A newly allocated #CoglSubTexture
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* representing a sub-region of @parent_texture.
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*
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* Since: 1.10
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* Stability: unstable
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*/
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CoglSubTexture *
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cogl_sub_texture_new (CoglContext *ctx,
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CoglTexture *parent_texture,
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int sub_x,
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int sub_y,
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int sub_width,
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int sub_height);
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/**
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* cogl_sub_texture_get_parent:
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* @sub_texture: A pointer to a #CoglSubTexture
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*
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* Retrieves the parent texture that @sub_texture derives its content
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* from. This is the texture that was passed to
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* cogl_sub_texture_new() as the parent_texture argument.
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*
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* Return value: (transfer none): The parent texture that @sub_texture
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* derives its content from.
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* Since: 1.10
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* Stability: unstable
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*/
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CoglTexture *
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cogl_sub_texture_get_parent (CoglSubTexture *sub_texture);
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/**
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* cogl_is_sub_texture:
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* @object: a #CoglObject
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*
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* Checks whether @object is a #CoglSubTexture.
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*
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* Return value: %TRUE if the passed @object represents a
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* #CoglSubTexture and %FALSE otherwise.
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*
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* Since: 1.10
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* Stability: unstable
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*/
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CoglBool
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cogl_is_sub_texture (void *object);
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COGL_END_DECLS
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#endif /* __COGL_SUB_TEXTURE_H */
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