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mutter/cogl/cogl-vertex-buffer-private.h

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Renames the mesh api to the "vertex buffer api". This better reflects the fact that the api manages sets of vertex attributes, and the attributes really have no implied form. It is only when you use the attributes to draw that they become mesh like; when you specify how they should be interpreted, e.g. as triangle lists or fans etc. This rename frees up the term "mesh", which can later be applied to a concept slightly more fitting. E.g. at some point it would be nice to have a higher level abstraction that sits on top of cogl vertex buffers that adds the concept of faces. (Somthing like Blender's mesh objects.) There have also been some discussions over particle engines, and these can be defined in terms of emitter faces; so some other kind of mesh abstraction might be usefull here.
2009-01-20 21:12:44 +00:00
/*
[cogl] Updates all file headers and removes lots of trailing white space Adds missing notices, and ensures all the notices are consistent. The Cogl blurb also now reads: * Cogl * * An object oriented GL/GLES Abstraction/Utility Layer
2009-04-27 14:48:12 +00:00
* Cogl
Renames the mesh api to the "vertex buffer api". This better reflects the fact that the api manages sets of vertex attributes, and the attributes really have no implied form. It is only when you use the attributes to draw that they become mesh like; when you specify how they should be interpreted, e.g. as triangle lists or fans etc. This rename frees up the term "mesh", which can later be applied to a concept slightly more fitting. E.g. at some point it would be nice to have a higher level abstraction that sits on top of cogl vertex buffers that adds the concept of faces. (Somthing like Blender's mesh objects.) There have also been some discussions over particle engines, and these can be defined in terms of emitter faces; so some other kind of mesh abstraction might be usefull here.
2009-01-20 21:12:44 +00:00
*
[cogl] Updates all file headers and removes lots of trailing white space Adds missing notices, and ensures all the notices are consistent. The Cogl blurb also now reads: * Cogl * * An object oriented GL/GLES Abstraction/Utility Layer
2009-04-27 14:48:12 +00:00
* An object oriented GL/GLES Abstraction/Utility Layer
Renames the mesh api to the "vertex buffer api". This better reflects the fact that the api manages sets of vertex attributes, and the attributes really have no implied form. It is only when you use the attributes to draw that they become mesh like; when you specify how they should be interpreted, e.g. as triangle lists or fans etc. This rename frees up the term "mesh", which can later be applied to a concept slightly more fitting. E.g. at some point it would be nice to have a higher level abstraction that sits on top of cogl vertex buffers that adds the concept of faces. (Somthing like Blender's mesh objects.) There have also been some discussions over particle engines, and these can be defined in terms of emitter faces; so some other kind of mesh abstraction might be usefull here.
2009-01-20 21:12:44 +00:00
*
[cogl] Updates all file headers and removes lots of trailing white space Adds missing notices, and ensures all the notices are consistent. The Cogl blurb also now reads: * Cogl * * An object oriented GL/GLES Abstraction/Utility Layer
2009-04-27 14:48:12 +00:00
* Copyright (C) 2008,2009 Intel Corporation.
Renames the mesh api to the "vertex buffer api". This better reflects the fact that the api manages sets of vertex attributes, and the attributes really have no implied form. It is only when you use the attributes to draw that they become mesh like; when you specify how they should be interpreted, e.g. as triangle lists or fans etc. This rename frees up the term "mesh", which can later be applied to a concept slightly more fitting. E.g. at some point it would be nice to have a higher level abstraction that sits on top of cogl vertex buffers that adds the concept of faces. (Somthing like Blender's mesh objects.) There have also been some discussions over particle engines, and these can be defined in terms of emitter faces; so some other kind of mesh abstraction might be usefull here.
2009-01-20 21:12:44 +00:00
*
* 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
[cogl] Updates all file headers and removes lots of trailing white space Adds missing notices, and ensures all the notices are consistent. The Cogl blurb also now reads: * Cogl * * An object oriented GL/GLES Abstraction/Utility Layer
2009-04-27 14:48:12 +00:00
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*
* Authors:
* Robert Bragg <robert@linux.intel.com>
Renames the mesh api to the "vertex buffer api". This better reflects the fact that the api manages sets of vertex attributes, and the attributes really have no implied form. It is only when you use the attributes to draw that they become mesh like; when you specify how they should be interpreted, e.g. as triangle lists or fans etc. This rename frees up the term "mesh", which can later be applied to a concept slightly more fitting. E.g. at some point it would be nice to have a higher level abstraction that sits on top of cogl vertex buffers that adds the concept of faces. (Somthing like Blender's mesh objects.) There have also been some discussions over particle engines, and these can be defined in terms of emitter faces; so some other kind of mesh abstraction might be usefull here.
2009-01-20 21:12:44 +00:00
*/
#ifndef __COGL_VERTEX_BUFFER_H
#define __COGL_VERTEX_BUFFER_H
[cogl-handle] Optimize how we define cogl handles The cogl_is_* functions were showing up quite high on profiles due to iterating through arrays of cogl handles. This does away with all the handle arrays and implements a simple struct inheritance scheme. All cogl objects now add a CoglHandleObject _parent; member to their main structures. The base object includes 2 members a.t.m; a ref_count, and a klass pointer. The klass in turn gives you a type and virtual function for freeing objects of that type. Each handle type has a _cogl_##handle_type##_get_type () function automatically defined which returns a GQuark of the handle type, so now implementing the cogl_is_* funcs is just a case of comparing with obj->klass->type. Another outcome of the re-work is that cogl_handle_{ref,unref} are also much more efficient, and no longer need extending for each handle type added to cogl. The cogl_##handle_type##_{ref,unref} functions are now deprecated and are no longer used internally to Clutter or Cogl. Potentially we can remove them completely before 1.0.
2009-04-01 16:16:44 +00:00
#include "cogl-handle.h"
#include <glib.h>
Renames the mesh api to the "vertex buffer api". This better reflects the fact that the api manages sets of vertex attributes, and the attributes really have no implied form. It is only when you use the attributes to draw that they become mesh like; when you specify how they should be interpreted, e.g. as triangle lists or fans etc. This rename frees up the term "mesh", which can later be applied to a concept slightly more fitting. E.g. at some point it would be nice to have a higher level abstraction that sits on top of cogl vertex buffers that adds the concept of faces. (Somthing like Blender's mesh objects.) There have also been some discussions over particle engines, and these can be defined in terms of emitter faces; so some other kind of mesh abstraction might be usefull here.
2009-01-20 21:12:44 +00:00
/* Note we put quite a bit into the flags here to help keep
* the down size of the CoglVertexBufferAttrib struct below. */
typedef enum _CoglVertexBufferAttribFlags
{
/* Types */
/* NB: update the _TYPE_MASK below if these are changed */
COGL_VERTEX_BUFFER_ATTRIB_FLAG_COLOR_ARRAY = 1<<0,
COGL_VERTEX_BUFFER_ATTRIB_FLAG_NORMAL_ARRAY = 1<<1,
COGL_VERTEX_BUFFER_ATTRIB_FLAG_TEXTURE_COORD_ARRAY = 1<<2,
COGL_VERTEX_BUFFER_ATTRIB_FLAG_VERTEX_ARRAY = 1<<3,
COGL_VERTEX_BUFFER_ATTRIB_FLAG_CUSTOM_ARRAY = 1<<4,
COGL_VERTEX_BUFFER_ATTRIB_FLAG_INVALID = 1<<5,
COGL_VERTEX_BUFFER_ATTRIB_FLAG_NORMALIZED = 1<<6,
COGL_VERTEX_BUFFER_ATTRIB_FLAG_ENABLED = 1<<7,
/* Usage hints */
/* FIXME - flatten into one flag, since its used as a boolean */
COGL_VERTEX_BUFFER_ATTRIB_FLAG_INFREQUENT_RESUBMIT = 1<<8,
COGL_VERTEX_BUFFER_ATTRIB_FLAG_FREQUENT_RESUBMIT = 1<<9,
/* GL Data types */
/* NB: Update the _GL_TYPE_MASK below if these are changed */
COGL_VERTEX_BUFFER_ATTRIB_FLAG_GL_TYPE_BYTE = 1<<10,
COGL_VERTEX_BUFFER_ATTRIB_FLAG_GL_TYPE_UNSIGNED_BYTE = 1<<11,
COGL_VERTEX_BUFFER_ATTRIB_FLAG_GL_TYPE_SHORT = 1<<12,
COGL_VERTEX_BUFFER_ATTRIB_FLAG_GL_TYPE_UNSIGNED_SHORT = 1<<13,
COGL_VERTEX_BUFFER_ATTRIB_FLAG_GL_TYPE_INT = 1<<14,
COGL_VERTEX_BUFFER_ATTRIB_FLAG_GL_TYPE_UNSIGNED_INT = 1<<15,
COGL_VERTEX_BUFFER_ATTRIB_FLAG_GL_TYPE_FLOAT = 1<<16,
COGL_VERTEX_BUFFER_ATTRIB_FLAG_GL_TYPE_DOUBLE = 1<<17,
COGL_VERTEX_BUFFER_ATTRIB_FLAG_SUBMITTED = 1<<18,
COGL_VERTEX_BUFFER_ATTRIB_FLAG_UNUSED = 1<<19
/* XXX NB: If we need > 24 bits then look at changing the layout
* of struct _CoglVertexBufferAttrib below */
} CoglVertexBufferAttribFlags;
#define COGL_VERTEX_BUFFER_ATTRIB_FLAG_TYPE_MASK \
(COGL_VERTEX_BUFFER_ATTRIB_FLAG_COLOR_ARRAY \
| COGL_VERTEX_BUFFER_ATTRIB_FLAG_NORMAL_ARRAY \
| COGL_VERTEX_BUFFER_ATTRIB_FLAG_TEXTURE_COORD_ARRAY \
| COGL_VERTEX_BUFFER_ATTRIB_FLAG_VERTEX_ARRAY \
| COGL_VERTEX_BUFFER_ATTRIB_FLAG_CUSTOM_ARRAY \
| COGL_VERTEX_BUFFER_ATTRIB_FLAG_INVALID)
#define COGL_VERTEX_BUFFER_ATTRIB_FLAG_GL_TYPE_MASK \
(COGL_VERTEX_BUFFER_ATTRIB_FLAG_GL_TYPE_BYTE \
| COGL_VERTEX_BUFFER_ATTRIB_FLAG_GL_TYPE_UNSIGNED_BYTE \
| COGL_VERTEX_BUFFER_ATTRIB_FLAG_GL_TYPE_SHORT \
| COGL_VERTEX_BUFFER_ATTRIB_FLAG_GL_TYPE_UNSIGNED_SHORT \
| COGL_VERTEX_BUFFER_ATTRIB_FLAG_GL_TYPE_INT \
| COGL_VERTEX_BUFFER_ATTRIB_FLAG_GL_TYPE_UNSIGNED_INT \
| COGL_VERTEX_BUFFER_ATTRIB_FLAG_GL_TYPE_FLOAT \
| COGL_VERTEX_BUFFER_ATTRIB_FLAG_GL_TYPE_DOUBLE)
typedef struct _CoglVertexBufferAttrib
{
/* TODO: look at breaking up the flags into seperate
* bitfields and seperate enums */
CoglVertexBufferAttribFlags flags:24;
guint8 id;
GQuark name;
union _u
{
const void *pointer;
[cogl-vertex-buffers] Support putting index arrays into VBOS It's now possible to add arrays of indices to a Cogl vertex buffer and they will be put into an OpenGL vertex buffer object. Since it's quite common for index arrays to be static it saves the OpenGL driver from having to validate them repeatedly. This changes the cogl_vertex_buffer_draw_elements API: It's no longer possible to provide a pointer to an index array at draw time. So cogl_vertex_buffer_draw_elements now takes an indices identifier that should correspond to an idendifier returned when calling cogl_vertex_buffer_add_indices ()
2009-05-24 03:04:38 +00:00
size_t vbo_offset;
Renames the mesh api to the "vertex buffer api". This better reflects the fact that the api manages sets of vertex attributes, and the attributes really have no implied form. It is only when you use the attributes to draw that they become mesh like; when you specify how they should be interpreted, e.g. as triangle lists or fans etc. This rename frees up the term "mesh", which can later be applied to a concept slightly more fitting. E.g. at some point it would be nice to have a higher level abstraction that sits on top of cogl vertex buffers that adds the concept of faces. (Somthing like Blender's mesh objects.) There have also been some discussions over particle engines, and these can be defined in terms of emitter faces; so some other kind of mesh abstraction might be usefull here.
2009-01-20 21:12:44 +00:00
} u;
[cogl-vertex-buffers] Support putting index arrays into VBOS It's now possible to add arrays of indices to a Cogl vertex buffer and they will be put into an OpenGL vertex buffer object. Since it's quite common for index arrays to be static it saves the OpenGL driver from having to validate them repeatedly. This changes the cogl_vertex_buffer_draw_elements API: It's no longer possible to provide a pointer to an index array at draw time. So cogl_vertex_buffer_draw_elements now takes an indices identifier that should correspond to an idendifier returned when calling cogl_vertex_buffer_add_indices ()
2009-05-24 03:04:38 +00:00
size_t span_bytes;
Renames the mesh api to the "vertex buffer api". This better reflects the fact that the api manages sets of vertex attributes, and the attributes really have no implied form. It is only when you use the attributes to draw that they become mesh like; when you specify how they should be interpreted, e.g. as triangle lists or fans etc. This rename frees up the term "mesh", which can later be applied to a concept slightly more fitting. E.g. at some point it would be nice to have a higher level abstraction that sits on top of cogl vertex buffers that adds the concept of faces. (Somthing like Blender's mesh objects.) There have also been some discussions over particle engines, and these can be defined in terms of emitter faces; so some other kind of mesh abstraction might be usefull here.
2009-01-20 21:12:44 +00:00
guint16 stride;
guint8 n_components;
guint8 texture_unit;
} CoglVertexBufferAttrib;
typedef enum _CoglVertexBufferVBOFlags
{
COGL_VERTEX_BUFFER_VBO_FLAG_UNSTRIDED = 1<<0,
COGL_VERTEX_BUFFER_VBO_FLAG_STRIDED = 1<<1,
COGL_VERTEX_BUFFER_VBO_FLAG_MULTIPACK = 1<<2,
/* FIXME - flatten into one flag, since its used as a boolean */
COGL_VERTEX_BUFFER_VBO_FLAG_INFREQUENT_RESUBMIT = 1<<3,
COGL_VERTEX_BUFFER_VBO_FLAG_FREQUENT_RESUBMIT = 1<<4,
COGL_VERTEX_BUFFER_VBO_FLAG_SUBMITTED = 1<<5
} CoglVertexBufferVBOFlags;
/*
* A CoglVertexBufferVBO represents one or more attributes in a single
* buffer object
*/
typedef struct _CoglVertexBufferVBO
{
CoglVertexBufferVBOFlags flags;
[cogl vertex buffers] Adds fallbacks for drivers without VBO support Buffer objects aren't currently available for glx indirect contexts, so we now have a fallback that simply allocates fake client side vbos to store the attributes.
2009-04-15 18:25:55 +00:00
[cogl-vertex-buffers] Support putting index arrays into VBOS It's now possible to add arrays of indices to a Cogl vertex buffer and they will be put into an OpenGL vertex buffer object. Since it's quite common for index arrays to be static it saves the OpenGL driver from having to validate them repeatedly. This changes the cogl_vertex_buffer_draw_elements API: It's no longer possible to provide a pointer to an index array at draw time. So cogl_vertex_buffer_draw_elements now takes an indices identifier that should correspond to an idendifier returned when calling cogl_vertex_buffer_add_indices ()
2009-05-24 03:04:38 +00:00
/* Note: this is a pointer to handle fallbacks. It normally holds
* a GLuint VBO name, but when the driver doesn't support VBOs then
* this simply points to an malloc'd buffer. */
void *vbo_name; /*!< The name of the corresponding buffer object */
size_t vbo_bytes; /*!< The lengh of the allocated buffer object in bytes */
Renames the mesh api to the "vertex buffer api". This better reflects the fact that the api manages sets of vertex attributes, and the attributes really have no implied form. It is only when you use the attributes to draw that they become mesh like; when you specify how they should be interpreted, e.g. as triangle lists or fans etc. This rename frees up the term "mesh", which can later be applied to a concept slightly more fitting. E.g. at some point it would be nice to have a higher level abstraction that sits on top of cogl vertex buffers that adds the concept of faces. (Somthing like Blender's mesh objects.) There have also been some discussions over particle engines, and these can be defined in terms of emitter faces; so some other kind of mesh abstraction might be usefull here.
2009-01-20 21:12:44 +00:00
GList *attributes;
} CoglVertexBufferVBO;
[cogl-vertex-buffers] Support putting index arrays into VBOS It's now possible to add arrays of indices to a Cogl vertex buffer and they will be put into an OpenGL vertex buffer object. Since it's quite common for index arrays to be static it saves the OpenGL driver from having to validate them repeatedly. This changes the cogl_vertex_buffer_draw_elements API: It's no longer possible to provide a pointer to an index array at draw time. So cogl_vertex_buffer_draw_elements now takes an indices identifier that should correspond to an idendifier returned when calling cogl_vertex_buffer_add_indices ()
2009-05-24 03:04:38 +00:00
typedef struct _CoglVertexBufferIndices
{
[cogl vertex buffers] Give indices a CoglHandle so they are shareable Previously indices were tightly bound to a particular Cogl vertex buffer but we would like to be able to share indices so now we have cogl_vertex_buffer_indices_new () which returns a CoglHandle. In particular we could like to have a shared set of indices for drawing lists of quads that can be shared between the pango renderer and the Cogl journal.
2009-05-28 11:49:29 +00:00
CoglHandleObject _parent;
[cogl-vertex-buffers] Support putting index arrays into VBOS It's now possible to add arrays of indices to a Cogl vertex buffer and they will be put into an OpenGL vertex buffer object. Since it's quite common for index arrays to be static it saves the OpenGL driver from having to validate them repeatedly. This changes the cogl_vertex_buffer_draw_elements API: It's no longer possible to provide a pointer to an index array at draw time. So cogl_vertex_buffer_draw_elements now takes an indices identifier that should correspond to an idendifier returned when calling cogl_vertex_buffer_add_indices ()
2009-05-24 03:04:38 +00:00
/* Note: this is a pointer to handle fallbacks. It normally holds
* a GLuint VBO name, but when the driver doesn't support VBOs then
* this simply points to an malloc'd buffer. */
void *vbo_name;
GLenum type;
} CoglVertexBufferIndices;
Renames the mesh api to the "vertex buffer api". This better reflects the fact that the api manages sets of vertex attributes, and the attributes really have no implied form. It is only when you use the attributes to draw that they become mesh like; when you specify how they should be interpreted, e.g. as triangle lists or fans etc. This rename frees up the term "mesh", which can later be applied to a concept slightly more fitting. E.g. at some point it would be nice to have a higher level abstraction that sits on top of cogl vertex buffers that adds the concept of faces. (Somthing like Blender's mesh objects.) There have also been some discussions over particle engines, and these can be defined in terms of emitter faces; so some other kind of mesh abstraction might be usefull here.
2009-01-20 21:12:44 +00:00
typedef struct _CoglVertexBuffer
{
[cogl-handle] Optimize how we define cogl handles The cogl_is_* functions were showing up quite high on profiles due to iterating through arrays of cogl handles. This does away with all the handle arrays and implements a simple struct inheritance scheme. All cogl objects now add a CoglHandleObject _parent; member to their main structures. The base object includes 2 members a.t.m; a ref_count, and a klass pointer. The klass in turn gives you a type and virtual function for freeing objects of that type. Each handle type has a _cogl_##handle_type##_get_type () function automatically defined which returns a GQuark of the handle type, so now implementing the cogl_is_* funcs is just a case of comparing with obj->klass->type. Another outcome of the re-work is that cogl_handle_{ref,unref} are also much more efficient, and no longer need extending for each handle type added to cogl. The cogl_##handle_type##_{ref,unref} functions are now deprecated and are no longer used internally to Clutter or Cogl. Potentially we can remove them completely before 1.0.
2009-04-01 16:16:44 +00:00
CoglHandleObject _parent;
[cogl-vertex-buffers] Support putting index arrays into VBOS It's now possible to add arrays of indices to a Cogl vertex buffer and they will be put into an OpenGL vertex buffer object. Since it's quite common for index arrays to be static it saves the OpenGL driver from having to validate them repeatedly. This changes the cogl_vertex_buffer_draw_elements API: It's no longer possible to provide a pointer to an index array at draw time. So cogl_vertex_buffer_draw_elements now takes an indices identifier that should correspond to an idendifier returned when calling cogl_vertex_buffer_add_indices ()
2009-05-24 03:04:38 +00:00
int n_vertices; /*!< The number of vertices in the buffer */
GList *submitted_vbos; /* The VBOs currently submitted to the GPU */
Renames the mesh api to the "vertex buffer api". This better reflects the fact that the api manages sets of vertex attributes, and the attributes really have no implied form. It is only when you use the attributes to draw that they become mesh like; when you specify how they should be interpreted, e.g. as triangle lists or fans etc. This rename frees up the term "mesh", which can later be applied to a concept slightly more fitting. E.g. at some point it would be nice to have a higher level abstraction that sits on top of cogl vertex buffers that adds the concept of faces. (Somthing like Blender's mesh objects.) There have also been some discussions over particle engines, and these can be defined in terms of emitter faces; so some other kind of mesh abstraction might be usefull here.
2009-01-20 21:12:44 +00:00
/* Note: new_attributes is normally NULL and only valid while
* modifying a buffer. */
[cogl-vertex-buffers] Support putting index arrays into VBOS It's now possible to add arrays of indices to a Cogl vertex buffer and they will be put into an OpenGL vertex buffer object. Since it's quite common for index arrays to be static it saves the OpenGL driver from having to validate them repeatedly. This changes the cogl_vertex_buffer_draw_elements API: It's no longer possible to provide a pointer to an index array at draw time. So cogl_vertex_buffer_draw_elements now takes an indices identifier that should correspond to an idendifier returned when calling cogl_vertex_buffer_add_indices ()
2009-05-24 03:04:38 +00:00
GList *new_attributes; /*!< attributes pending submission */
Renames the mesh api to the "vertex buffer api". This better reflects the fact that the api manages sets of vertex attributes, and the attributes really have no implied form. It is only when you use the attributes to draw that they become mesh like; when you specify how they should be interpreted, e.g. as triangle lists or fans etc. This rename frees up the term "mesh", which can later be applied to a concept slightly more fitting. E.g. at some point it would be nice to have a higher level abstraction that sits on top of cogl vertex buffers that adds the concept of faces. (Somthing like Blender's mesh objects.) There have also been some discussions over particle engines, and these can be defined in terms of emitter faces; so some other kind of mesh abstraction might be usefull here.
2009-01-20 21:12:44 +00:00
} CoglVertexBuffer;
Use GL_QUADS for flushing a quad batch Instead of using GL_TRIANGLES and uploading the indices every time, it now uses GL_QUADS instead on OpenGL. Under GLES it still uses indices but it uses the new cogl_vertex_buffer_indices_get_for_quads function to avoid uploading the vertices every time. This requires the _cogl_vertex_buffer_indices_pointer_from_handle function to be exposed privately to the rest of Cogl. The static_indices array has been removed from the Cogl context.
2009-06-01 16:10:22 +00:00
CoglVertexBuffer *_cogl_vertex_buffer_pointer_from_handle (CoglHandle handle);
CoglVertexBufferIndices *
_cogl_vertex_buffer_indices_pointer_from_handle (CoglHandle handle);
Renames the mesh api to the "vertex buffer api". This better reflects the fact that the api manages sets of vertex attributes, and the attributes really have no implied form. It is only when you use the attributes to draw that they become mesh like; when you specify how they should be interpreted, e.g. as triangle lists or fans etc. This rename frees up the term "mesh", which can later be applied to a concept slightly more fitting. E.g. at some point it would be nice to have a higher level abstraction that sits on top of cogl vertex buffers that adds the concept of faces. (Somthing like Blender's mesh objects.) There have also been some discussions over particle engines, and these can be defined in terms of emitter faces; so some other kind of mesh abstraction might be usefull here.
2009-01-20 21:12:44 +00:00
#endif /* __COGL_VERTEX_BUFFER_H */
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