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mutter/cogl/cogl-atlas-texture-private.h

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cogl: Add an atlased texture backend This adds a CoglAtlas type which is a data structure that keeps track of unused sub rectangles of a larger rectangle. There is a new atlased texture backend which uses this to put multiple textures into a single larger texture. Currently the atlas is always sized 256x256 and the textures are never moved once they are put in. Eventually it needs to be able to reorganise the atlas and grow it if necessary. It also needs to migrate the textures out of the atlas if mipmaps are required.
2009-12-04 13:06:32 +00:00
/*
* Cogl
*
* An object oriented GL/GLES Abstraction/Utility Layer
*
* Copyright (C) 2009 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
Remove mentions of the FSF address Since using addresses that might change is something that finally the FSF acknowledge as a plausible scenario (after changing address twice), the license blurb in the source files should use the URI for getting the license in case the library did not come with it. Not that URIs cannot possibly change, but at least it's easier to set up a redirection at the same place. As a side note: this commit closes the oldes bug in Clutter's bug report tool. http://bugzilla.openedhand.com/show_bug.cgi?id=521
2010-03-01 12:56:10 +00:00
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
*
cogl: Add an atlased texture backend This adds a CoglAtlas type which is a data structure that keeps track of unused sub rectangles of a larger rectangle. There is a new atlased texture backend which uses this to put multiple textures into a single larger texture. Currently the atlas is always sized 256x256 and the textures are never moved once they are put in. Eventually it needs to be able to reorganise the atlas and grow it if necessary. It also needs to migrate the textures out of the atlas if mipmaps are required.
2009-12-04 13:06:32 +00:00
*/
#ifndef __COGL_ATLAS_TEXTURE_H
#define __COGL_ATLAS_TEXTURE_H
Removes all remaining use of CoglHandle Removing CoglHandle has been an on going goal for quite a long time now and finally this patch removes the last remaining uses of the CoglHandle type and the cogl_handle_ apis. Since the big remaining users of CoglHandle were the cogl_program_ and cogl_shader_ apis which have replaced with the CoglSnippets api this patch removes both of these apis. Reviewed-by: Neil Roberts <neil@linux.intel.com> (cherry picked from commit 6ed3aaf4be21d605a1ed3176b3ea825933f85cf0) Since the original patch was done after removing deprecated API this back ported patch doesn't affect deprecated API and so actually this cherry-pick doesn't remove all remaining use of CoglHandle as it did for the master branch of Cogl.
2012-04-16 13:14:10 +00:00
#include "cogl-object-private.h"
cogl: Add an atlased texture backend This adds a CoglAtlas type which is a data structure that keeps track of unused sub rectangles of a larger rectangle. There is a new atlased texture backend which uses this to put multiple textures into a single larger texture. Currently the atlas is always sized 256x256 and the textures are never moved once they are put in. Eventually it needs to be able to reorganise the atlas and grow it if necessary. It also needs to migrate the textures out of the atlas if mipmaps are required.
2009-12-04 13:06:32 +00:00
#include "cogl-texture-private.h"
cogl-atlas: Rename to CoglRectangleMap This simply renames CoglAtlas to CoglRectangleMap without making any functional changes. The old 'CoglAtlas' is just a data structure for managing unused areas of a rectangle and it doesn't neccessarily have to be used for an atlas so it wasn't a very good name.
2010-08-02 14:24:03 +00:00
#include "cogl-rectangle-map.h"
cogl-atlas-texture: Split out the atlas data structure Instead of storing a pointer to the CoglRectangleMap and a handle to the atlas texture in the context, there is a now a separate data structure called a CoglAtlas to manage these two. The context just contains a pointer to this. The code to reorganise the atlas has been moved from cogl-atlas-texture.c to cogl-atlas.c
2010-08-02 15:29:10 +00:00
#include "cogl-atlas.h"
cogl: Add an atlased texture backend This adds a CoglAtlas type which is a data structure that keeps track of unused sub rectangles of a larger rectangle. There is a new atlased texture backend which uses this to put multiple textures into a single larger texture. Currently the atlas is always sized 256x256 and the textures are never moved once they are put in. Eventually it needs to be able to reorganise the atlas and grow it if necessary. It also needs to migrate the textures out of the atlas if mipmaps are required.
2009-12-04 13:06:32 +00:00
#define COGL_ATLAS_TEXTURE(tex) ((CoglAtlasTexture *) tex)
typedef struct _CoglAtlasTexture CoglAtlasTexture;
struct _CoglAtlasTexture
{
cogl-atlas: Rename to CoglRectangleMap This simply renames CoglAtlas to CoglRectangleMap without making any functional changes. The old 'CoglAtlas' is just a data structure for managing unused areas of a rectangle and it doesn't neccessarily have to be used for an atlas so it wasn't a very good name.
2010-08-02 14:24:03 +00:00
CoglTexture _parent;
cogl: Add an atlased texture backend This adds a CoglAtlas type which is a data structure that keeps track of unused sub rectangles of a larger rectangle. There is a new atlased texture backend which uses this to put multiple textures into a single larger texture. Currently the atlas is always sized 256x256 and the textures are never moved once they are put in. Eventually it needs to be able to reorganise the atlas and grow it if necessary. It also needs to migrate the textures out of the atlas if mipmaps are required.
2009-12-04 13:06:32 +00:00
/* The format that the texture is in. This isn't necessarily the
same format as the atlas texture because we can store
pre-multiplied and non-pre-multiplied textures together */
cogl-atlas: Rename to CoglRectangleMap This simply renames CoglAtlas to CoglRectangleMap without making any functional changes. The old 'CoglAtlas' is just a data structure for managing unused areas of a rectangle and it doesn't neccessarily have to be used for an atlas so it wasn't a very good name.
2010-08-02 14:24:03 +00:00
CoglPixelFormat format;
cogl: Add an atlased texture backend This adds a CoglAtlas type which is a data structure that keeps track of unused sub rectangles of a larger rectangle. There is a new atlased texture backend which uses this to put multiple textures into a single larger texture. Currently the atlas is always sized 256x256 and the textures are never moved once they are put in. Eventually it needs to be able to reorganise the atlas and grow it if necessary. It also needs to migrate the textures out of the atlas if mipmaps are required.
2009-12-04 13:06:32 +00:00
/* The rectangle that was used to add this texture to the
atlas. This includes the 1-pixel border */
cogl-atlas: Rename to CoglRectangleMap This simply renames CoglAtlas to CoglRectangleMap without making any functional changes. The old 'CoglAtlas' is just a data structure for managing unused areas of a rectangle and it doesn't neccessarily have to be used for an atlas so it wasn't a very good name.
2010-08-02 14:24:03 +00:00
CoglRectangleMapEntry rectangle;
cogl: Add an atlased texture backend This adds a CoglAtlas type which is a data structure that keeps track of unused sub rectangles of a larger rectangle. There is a new atlased texture backend which uses this to put multiple textures into a single larger texture. Currently the atlas is always sized 256x256 and the textures are never moved once they are put in. Eventually it needs to be able to reorganise the atlas and grow it if necessary. It also needs to migrate the textures out of the atlas if mipmaps are required.
2009-12-04 13:06:32 +00:00
Allow multiple CoglAtlases for textures Previously Cogl would only ever use one atlas for textures and if it reached the maximum texture size then all other new textures would get their own GL texture. This patch makes it so that we create as many atlases as needed. This should avoid breaking up some batches and it will be particularly good if we switch to always using multi-texturing with a default shader that selects between multiple atlases using a vertex attribute. Whenever a new atlas is created it is stored in a GSList on the context. A weak weference is taken on the atlas using cogl_object_set_user_data so that it can be removed from the list when the atlas is destroyed. The atlas textures themselves take a reference to the atlas and this is the only thing that keeps the atlas alive. This means that once the atlas becomes empty it will automatically be destroyed. All of the COGL_NOTEs pertaining to atlases are now prefixed with the atlas pointer to make it clearer which atlas is changing.
2010-11-27 13:15:02 +00:00
/* The atlas that this texture is in. If the texture is no longer in
an atlas then this will be NULL. A reference is taken on the
atlas by the texture (but not vice versa so there is no cycle) */
CoglAtlas *atlas;
cogl: Add an atlased texture backend This adds a CoglAtlas type which is a data structure that keeps track of unused sub rectangles of a larger rectangle. There is a new atlased texture backend which uses this to put multiple textures into a single larger texture. Currently the atlas is always sized 256x256 and the textures are never moved once they are put in. Eventually it needs to be able to reorganise the atlas and grow it if necessary. It also needs to migrate the textures out of the atlas if mipmaps are required.
2009-12-04 13:06:32 +00:00
Removes all remaining use of CoglHandle Removing CoglHandle has been an on going goal for quite a long time now and finally this patch removes the last remaining uses of the CoglHandle type and the cogl_handle_ apis. Since the big remaining users of CoglHandle were the cogl_program_ and cogl_shader_ apis which have replaced with the CoglSnippets api this patch removes both of these apis. Reviewed-by: Neil Roberts <neil@linux.intel.com> (cherry picked from commit 6ed3aaf4be21d605a1ed3176b3ea825933f85cf0) Since the original patch was done after removing deprecated API this back ported patch doesn't affect deprecated API and so actually this cherry-pick doesn't remove all remaining use of CoglHandle as it did for the master branch of Cogl.
2012-04-16 13:14:10 +00:00
/* Either a CoglSubTexture representing the atlas region for easy
* rendering or if the texture has been migrated out of the atlas it
* may be some other texture type such as CoglTexture2D */
CoglTexture *sub_texture;
cogl: Add an atlased texture backend This adds a CoglAtlas type which is a data structure that keeps track of unused sub rectangles of a larger rectangle. There is a new atlased texture backend which uses this to put multiple textures into a single larger texture. Currently the atlas is always sized 256x256 and the textures are never moved once they are put in. Eventually it needs to be able to reorganise the atlas and grow it if necessary. It also needs to migrate the textures out of the atlas if mipmaps are required.
2009-12-04 13:06:32 +00:00
};
Removes all remaining use of CoglHandle Removing CoglHandle has been an on going goal for quite a long time now and finally this patch removes the last remaining uses of the CoglHandle type and the cogl_handle_ apis. Since the big remaining users of CoglHandle were the cogl_program_ and cogl_shader_ apis which have replaced with the CoglSnippets api this patch removes both of these apis. Reviewed-by: Neil Roberts <neil@linux.intel.com> (cherry picked from commit 6ed3aaf4be21d605a1ed3176b3ea825933f85cf0) Since the original patch was done after removing deprecated API this back ported patch doesn't affect deprecated API and so actually this cherry-pick doesn't remove all remaining use of CoglHandle as it did for the master branch of Cogl.
2012-04-16 13:14:10 +00:00
CoglAtlasTexture *
Allow propogation of OOM errors to apps This allows apps to catch out-of-memory errors when allocating textures. Textures can be pretty huge at times and so it's quite possible for an application to try and allocate more memory than is available. It's also very possible that the application can take some action in response to reduce memory pressure (such as freeing up texture caches perhaps) so we shouldn't just automatically abort like we do for trivial heap allocations. These public functions now take a CoglError argument so applications can catch out of memory errors: cogl_buffer_map cogl_buffer_map_range cogl_buffer_set_data cogl_framebuffer_read_pixels_into_bitmap cogl_pixel_buffer_new cogl_texture_new_from_data cogl_texture_new_from_bitmap Note: we've been quite conservative with how many apis we let throw OOM CoglErrors since we don't really want to put a burdon on developers to be checking for errors with every cogl api call. So long as there is some lower level api for apps to use that let them catch OOM errors for everything necessary that's enough and we don't have to make more convenient apis more awkward to use. The main focus is on bitmaps and texture allocations since they can be particularly large and prone to failing. A new cogl_attribute_buffer_new_with_size() function has been added in case developers need to catch OOM errors when allocating attribute buffers whereby they can first use _buffer_new_with_size() (which doesn't take a CoglError) followed by cogl_buffer_set_data() which will lazily allocate the buffer storage and report OOM errors. Reviewed-by: Neil Roberts <neil@linux.intel.com> (cherry picked from commit f7735e141ad537a253b02afa2a8238f96340b978) Note: since we can't break the API for Cogl 1.x then actually the main purpose of cherry picking this patch is to keep in-line with changes on the master branch so that we can easily cherry-pick patches. All the api changes relating stable apis released on the 1.12 branch have been reverted as part of cherry-picking this patch so this most just applies all the internal plumbing changes that enable us to correctly propagate OOM errors.
2012-11-08 17:54:10 +00:00
_cogl_atlas_texture_new_from_bitmap (CoglBitmap *bmp,
cogl: Add an atlased texture backend This adds a CoglAtlas type which is a data structure that keeps track of unused sub rectangles of a larger rectangle. There is a new atlased texture backend which uses this to put multiple textures into a single larger texture. Currently the atlas is always sized 256x256 and the textures are never moved once they are put in. Eventually it needs to be able to reorganise the atlas and grow it if necessary. It also needs to migrate the textures out of the atlas if mipmaps are required.
2009-12-04 13:06:32 +00:00
CoglTextureFlags flags,
Allow propogation of OOM errors to apps This allows apps to catch out-of-memory errors when allocating textures. Textures can be pretty huge at times and so it's quite possible for an application to try and allocate more memory than is available. It's also very possible that the application can take some action in response to reduce memory pressure (such as freeing up texture caches perhaps) so we shouldn't just automatically abort like we do for trivial heap allocations. These public functions now take a CoglError argument so applications can catch out of memory errors: cogl_buffer_map cogl_buffer_map_range cogl_buffer_set_data cogl_framebuffer_read_pixels_into_bitmap cogl_pixel_buffer_new cogl_texture_new_from_data cogl_texture_new_from_bitmap Note: we've been quite conservative with how many apis we let throw OOM CoglErrors since we don't really want to put a burdon on developers to be checking for errors with every cogl api call. So long as there is some lower level api for apps to use that let them catch OOM errors for everything necessary that's enough and we don't have to make more convenient apis more awkward to use. The main focus is on bitmaps and texture allocations since they can be particularly large and prone to failing. A new cogl_attribute_buffer_new_with_size() function has been added in case developers need to catch OOM errors when allocating attribute buffers whereby they can first use _buffer_new_with_size() (which doesn't take a CoglError) followed by cogl_buffer_set_data() which will lazily allocate the buffer storage and report OOM errors. Reviewed-by: Neil Roberts <neil@linux.intel.com> (cherry picked from commit f7735e141ad537a253b02afa2a8238f96340b978) Note: since we can't break the API for Cogl 1.x then actually the main purpose of cherry picking this patch is to keep in-line with changes on the master branch so that we can easily cherry-pick patches. All the api changes relating stable apis released on the 1.12 branch have been reverted as part of cherry-picking this patch so this most just applies all the internal plumbing changes that enable us to correctly propagate OOM errors.
2012-11-08 17:54:10 +00:00
CoglPixelFormat internal_format,
CoglError **error);
cogl: Add an atlased texture backend This adds a CoglAtlas type which is a data structure that keeps track of unused sub rectangles of a larger rectangle. There is a new atlased texture backend which uses this to put multiple textures into a single larger texture. Currently the atlas is always sized 256x256 and the textures are never moved once they are put in. Eventually it needs to be able to reorganise the atlas and grow it if necessary. It also needs to migrate the textures out of the atlas if mipmaps are required.
2009-12-04 13:06:32 +00:00
Removes all remaining use of CoglHandle Removing CoglHandle has been an on going goal for quite a long time now and finally this patch removes the last remaining uses of the CoglHandle type and the cogl_handle_ apis. Since the big remaining users of CoglHandle were the cogl_program_ and cogl_shader_ apis which have replaced with the CoglSnippets api this patch removes both of these apis. Reviewed-by: Neil Roberts <neil@linux.intel.com> (cherry picked from commit 6ed3aaf4be21d605a1ed3176b3ea825933f85cf0) Since the original patch was done after removing deprecated API this back ported patch doesn't affect deprecated API and so actually this cherry-pick doesn't remove all remaining use of CoglHandle as it did for the master branch of Cogl.
2012-04-16 13:14:10 +00:00
CoglAtlasTexture *
atlas-texture: remove some use of _COGL_GET_CONTEXT This removes several uses of _COGL_GET_CONTEXT in cogl-atlas-texture.c. Notably this involved making CoglPangoGlyphCache track an associated CoglContext pointer which cogl-pango can pass to _cogl_atlas_texture_new_with_size(). Reviewed-by: Neil Roberts <neil@linux.intel.com> (cherry picked from commit d66afbd0758539330490945c699a05c0749c76aa)
2012-11-09 10:54:32 +00:00
_cogl_atlas_texture_new_with_size (CoglContext *ctx,
int width,
int height,
cogl-atlas-texture: Split out new_from_bitmap to new_with_size This adds a new function called _cogl_atlas_texture_new_with_size. The old new_from_bitmap function now just calls this and updates the texture with the data.
2010-02-18 16:33:12 +00:00
CoglTextureFlags flags,
Allow lazy texture storage allocation Consistent with how we lazily allocate framebuffers this patch allows us to instantiate textures but still specify constraints and requirements before allocating storage so that we can be sure to allocate the most appropriate/efficient storage. This adds a cogl_texture_allocate() function that is analogous to cogl_framebuffer_allocate() which can optionally be called to explicitly allocate storage and catch any errors. If this function isn't used explicitly then Cogl will implicitly ensure textures are allocated before the storage is needed. It is generally recommended to rely on lazy storage allocation or at least perform explicit allocation as late as possible so Cogl can be fully informed about the best way to allocate storage. Reviewed-by: Neil Roberts <neil@linux.intel.com> (cherry picked from commit 1fa7c0f10a8a03043e3c75cb079a49625df098b7) Note: This reverts the cogl_texture_rectangle_new_with_size API change that dropped the CoglError argument and keeps the semantics of allocating the texture immediately. This is because Mutter currently uses this API so we will probably look at updating this later once we have a corresponding Mutter patch prepared. The other API changes were kept since they only affected experimental api.
2012-11-22 23:01:08 +00:00
CoglPixelFormat internal_format,
CoglError **error);
cogl-atlas-texture: Split out new_from_bitmap to new_with_size This adds a new function called _cogl_atlas_texture_new_with_size. The old new_from_bitmap function now just calls this and updates the texture with the data.
2010-02-18 16:33:12 +00:00
cogl-atlas-texture: Add a callback for when any atlas reorganizes This adds cogl_atlas_texture_* functions to register a callback that will get invoked whenever any of the CoglAtlas's the textures use get reorganized. The callback is global and is not tied to any particular atlas texture.
2011-03-30 11:53:50 +00:00
void
atlas-texture: remove some use of _COGL_GET_CONTEXT This removes several uses of _COGL_GET_CONTEXT in cogl-atlas-texture.c. Notably this involved making CoglPangoGlyphCache track an associated CoglContext pointer which cogl-pango can pass to _cogl_atlas_texture_new_with_size(). Reviewed-by: Neil Roberts <neil@linux.intel.com> (cherry picked from commit d66afbd0758539330490945c699a05c0749c76aa)
2012-11-09 10:54:32 +00:00
_cogl_atlas_texture_add_reorganize_callback (CoglContext *ctx,
GHookFunc callback,
cogl-atlas-texture: Add a callback for when any atlas reorganizes This adds cogl_atlas_texture_* functions to register a callback that will get invoked whenever any of the CoglAtlas's the textures use get reorganized. The callback is global and is not tied to any particular atlas texture.
2011-03-30 11:53:50 +00:00
void *user_data);
void
atlas-texture: remove some use of _COGL_GET_CONTEXT This removes several uses of _COGL_GET_CONTEXT in cogl-atlas-texture.c. Notably this involved making CoglPangoGlyphCache track an associated CoglContext pointer which cogl-pango can pass to _cogl_atlas_texture_new_with_size(). Reviewed-by: Neil Roberts <neil@linux.intel.com> (cherry picked from commit d66afbd0758539330490945c699a05c0749c76aa)
2012-11-09 10:54:32 +00:00
_cogl_atlas_texture_remove_reorganize_callback (CoglContext *ctx,
GHookFunc callback,
cogl-atlas-texture: Add a callback for when any atlas reorganizes This adds cogl_atlas_texture_* functions to register a callback that will get invoked whenever any of the CoglAtlas's the textures use get reorganized. The callback is global and is not tied to any particular atlas texture.
2011-03-30 11:53:50 +00:00
void *user_data);
Switch use of primitive glib types to c99 equivalents The coding style has for a long time said to avoid using redundant glib data types such as gint or gchar etc because we feel that they make the code look unnecessarily foreign to developers coming from outside of the Gnome developer community. Note: When we tried to find the historical rationale for the types we just found that they were apparently only added for consistent syntax highlighting which didn't seem that compelling. Up until now we have been continuing to use some of the platform specific type such as gint{8,16,32,64} and gsize but this patch switches us over to using the standard c99 equivalents instead so we can further ensure that our code looks familiar to the widest range of C developers who might potentially contribute to Cogl. So instead of using the gint{8,16,32,64} and guint{8,16,32,64} types this switches all Cogl code to instead use the int{8,16,32,64}_t and uint{8,16,32,64}_t c99 types instead. Instead of gsize we now use size_t For now we are not going to use the c99 _Bool type and instead we have introduced a new CoglBool type to use instead of gboolean. Reviewed-by: Neil Roberts <neil@linux.intel.com> (cherry picked from commit 5967dad2400d32ca6319cef6cb572e81bf2c15f0)
2012-04-16 20:56:40 +00:00
CoglBool
Add -Wmissing-declarations to maintainer flags and fix problems This option to GCC makes it give a warning whenever a global function is defined without a declaration. This should catch cases were we've defined a function but forgot to put it in a header. In that case it is either only used within one file so we should make it static or we should declare it in a header. The following changes where made to fix problems: • Some functions were made static • cogl-path.h (the one containing the 1.0 API) was split into two files, one defining the functions and one defining the enums so that cogl-path.c can include the enum and function declarations from the 2.0 API as well as the function declarations from the 1.0 API. • cogl2-clip-state has been removed. This only had one experimental function called cogl_clip_push_from_path but as this is unstable we might as well remove it favour of the equivalent cogl_framebuffer_* API. • The GLX, SDL and WGL winsys's now have a private header to define their get_vtable function instead of directly declaring in the C file where it is called. • All places that were calling COGL_OBJECT_DEFINE need to have the cogl_is_whatever function declared so these have been added either as a public function or in a private header. • Some files that were not including the header containing their function declarations have been fixed to do so. • Any unused error quark functions have been removed. If we later want them we should add them back one by one and add a declaration for them in a header. • _cogl_is_framebuffer has been renamed to cogl_is_framebuffer and made a public function with a declaration in cogl-framebuffer.h • Similarly for CoglOnscreen. • cogl_vdraw_indexed_attributes is called cogl_framebuffer_vdraw_indexed_attributes in the header. The definition has been changed to match the header. • cogl_index_buffer_allocate has been removed. This had no declaration and I'm not sure what it's supposed to do. • CoglJournal has been changed to use the internal CoglObject macro so that it won't define an exported cogl_is_journal symbol. • The _cogl_blah_pointer_from_handle functions have been removed. CoglHandle isn't used much anymore anyway and in the few places where it is used I think it's safe to just use the implicit cast from void* to the right type. • The test-utils.h header for the conformance tests explicitly disables the -Wmissing-declaration option using a pragma because all of the tests declare their main function without a header. Any mistakes relating to missing declarations aren't really important for the tests. • cogl_quaternion_init_from_quaternion and init_from_matrix have been given declarations in cogl-quaternion.h Reviewed-by: Robert Bragg <robert@linux.intel.com>
2012-03-06 18:21:28 +00:00
_cogl_is_atlas_texture (void *object);
cogl: Add an atlased texture backend This adds a CoglAtlas type which is a data structure that keeps track of unused sub rectangles of a larger rectangle. There is a new atlased texture backend which uses this to put multiple textures into a single larger texture. Currently the atlas is always sized 256x256 and the textures are never moved once they are put in. Eventually it needs to be able to reorganise the atlas and grow it if necessary. It also needs to migrate the textures out of the atlas if mipmaps are required.
2009-12-04 13:06:32 +00:00
#endif /* __COGL_ATLAS_TEXTURE_H */
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