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mutter/cogl/cogl-atlas.h

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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 11:29:10 -04:00
/*
* Cogl
*
* An object oriented GL/GLES Abstraction/Utility Layer
*
cogl-atlas-texture: Don't let textures be destroyed during migration If an atlas texture's last reference is held by the journal or by the last flushed pipeline then if an atlas migration is started it can cause a crash. This is because the atlas migration will cause a journal flush and can sometimes change the current pipeline which means that the texture would be destroyed during migration. This patch adds an extra 'post_reorganize' callback to the existing 'reorganize' callback (which is now renamed to 'pre_reorganize'). The pre_reorganize callback is now called before the atlas grabs a list of the current textures instead of after so that it doesn't matter if the journal flush destroys some of those textures. The pre_reorganize callback for CoglAtlasTexture grabs a reference to all of the textures so that they can not be destroyed when the migration changes the pipeline. In the post_reorganize callback the reference is removed again. http://bugzilla.clutter-project.org/show_bug.cgi?id=2538
2011-02-17 08:11:34 -05:00
* Copyright (C) 2010,2011 Intel Corporation.
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 11:29:10 -04:00
*
* 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, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#ifndef __COGL_ATLAS_H
#define __COGL_ATLAS_H
#include "cogl-rectangle-map.h"
cogl-atlas: Convert to be a CoglObject subclass To implement multiple atlases it will be useful to have ref-counting on the CoglAtlas so it makes sense to convert it to be a CoglObject.
2010-11-27 08:06:38 -05:00
#include "cogl-object-private.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 11:29:10 -04:00
typedef void
(* CoglAtlasUpdatePositionCallback) (void *user_data,
CoglHandle new_texture,
const CoglRectangleMapEntry *rect);
cogl-atlas: Support multiple formats and clearing the texture _cogl_atlas_new now has two extra parameters to specify the format of the textures it creates as well as a set of flags to modify the behavious of the atlas. One of the flags causes the new textures to be cleared and the other causes migration to avoid actually copying the textures. This is needed to use CoglAtlas from the pango glyph cache because it needs to use COGL_PIXEL_A_8 and to clear the textures as it does not fill in the gaps between glyphs. It needs to avoid copying the textures so that it can work on GL implementations without FBO support.
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typedef enum
{
COGL_ATLAS_CLEAR_TEXTURE = (1 << 0),
COGL_ATLAS_DISABLE_MIGRATION = (1 << 1)
} CoglAtlasFlags;
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 11:29:10 -04:00
typedef struct _CoglAtlas CoglAtlas;
cogl-atlas: Convert to be a CoglObject subclass To implement multiple atlases it will be useful to have ref-counting on the CoglAtlas so it makes sense to convert it to be a CoglObject.
2010-11-27 08:06:38 -05:00
#define COGL_ATLAS(object) ((CoglAtlas *) object)
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 11:29:10 -04:00
struct _CoglAtlas
{
cogl-atlas: Convert to be a CoglObject subclass To implement multiple atlases it will be useful to have ref-counting on the CoglAtlas so it makes sense to convert it to be a CoglObject.
2010-11-27 08:06:38 -05:00
CoglObject _parent;
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 11:29:10 -04:00
CoglRectangleMap *map;
CoglHandle texture;
cogl-atlas: Support multiple formats and clearing the texture _cogl_atlas_new now has two extra parameters to specify the format of the textures it creates as well as a set of flags to modify the behavious of the atlas. One of the flags causes the new textures to be cleared and the other causes migration to avoid actually copying the textures. This is needed to use CoglAtlas from the pango glyph cache because it needs to use COGL_PIXEL_A_8 and to clear the textures as it does not fill in the gaps between glyphs. It needs to avoid copying the textures so that it can work on GL implementations without FBO support.
2010-08-05 08:24:02 -04:00
CoglPixelFormat texture_format;
CoglAtlasFlags flags;
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 11:29:10 -04:00
CoglAtlasUpdatePositionCallback update_position_cb;
cogl: Use GHookList instead of CoglCallbackList glib already has a data type to manage a list of callbacks called a GHookList so we might as well use it instead of maintaining Cogl's own type. The glib version may be slightly more efficient because it avoids using a GList and instead encodes the prev and next pointers directly in the GHook structure. It also has more features than CoglCallbackList.
2011-03-14 13:58:31 -04:00
GHookList pre_reorganize_callbacks;
GHookList post_reorganize_callbacks;
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
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};
CoglAtlas *
cogl-atlas: Support multiple formats and clearing the texture _cogl_atlas_new now has two extra parameters to specify the format of the textures it creates as well as a set of flags to modify the behavious of the atlas. One of the flags causes the new textures to be cleared and the other causes migration to avoid actually copying the textures. This is needed to use CoglAtlas from the pango glyph cache because it needs to use COGL_PIXEL_A_8 and to clear the textures as it does not fill in the gaps between glyphs. It needs to avoid copying the textures so that it can work on GL implementations without FBO support.
2010-08-05 08:24:02 -04:00
_cogl_atlas_new (CoglPixelFormat texture_format,
CoglAtlasFlags flags,
CoglAtlasUpdatePositionCallback update_position_cb);
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 11:29:10 -04:00
gboolean
_cogl_atlas_reserve_space (CoglAtlas *atlas,
unsigned int width,
unsigned int height,
void *user_data);
void
_cogl_atlas_remove (CoglAtlas *atlas,
const CoglRectangleMapEntry *rectangle);
CoglHandle
_cogl_atlas_copy_rectangle (CoglAtlas *atlas,
unsigned int x,
unsigned int y,
unsigned int width,
unsigned int height,
CoglTextureFlags flags,
CoglPixelFormat format);
void
_cogl_atlas_add_reorganize_callback (CoglAtlas *atlas,
cogl: Use GHookList instead of CoglCallbackList glib already has a data type to manage a list of callbacks called a GHookList so we might as well use it instead of maintaining Cogl's own type. The glib version may be slightly more efficient because it avoids using a GList and instead encodes the prev and next pointers directly in the GHook structure. It also has more features than CoglCallbackList.
2011-03-14 13:58:31 -04:00
GHookFunc pre_callback,
GHookFunc post_callback,
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 11:29:10 -04:00
void *user_data);
void
_cogl_atlas_remove_reorganize_callback (CoglAtlas *atlas,
cogl: Use GHookList instead of CoglCallbackList glib already has a data type to manage a list of callbacks called a GHookList so we might as well use it instead of maintaining Cogl's own type. The glib version may be slightly more efficient because it avoids using a GList and instead encodes the prev and next pointers directly in the GHook structure. It also has more features than CoglCallbackList.
2011-03-14 13:58:31 -04:00
GHookFunc pre_callback,
GHookFunc post_callback,
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 11:29:10 -04:00
void *user_data);
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 13:21:28 -05:00
gboolean
_cogl_is_atlas (void *object);
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 11:29:10 -04:00
#endif /* __COGL_ATLAS_H */
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