133 lines
4.1 KiB
C
133 lines
4.1 KiB
C
/*
|
|
* Cogl
|
|
*
|
|
* An object oriented GL/GLES Abstraction/Utility Layer
|
|
*
|
|
* Copyright (C) 2010 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 License
|
|
* along with this library. If not, see <http://www.gnu.org/licenses/>.
|
|
*
|
|
*
|
|
*
|
|
* Authors:
|
|
* Robert Bragg <robert@linux.intel.com>
|
|
*/
|
|
|
|
#if !defined(__COGL_H_INSIDE__) && !defined(COGL_COMPILATION)
|
|
#error "Only <cogl/cogl.h> can be included directly."
|
|
#endif
|
|
|
|
#ifndef __COGL_ATTRIBUTE_BUFFER_H__
|
|
#define __COGL_ATTRIBUTE_BUFFER_H__
|
|
|
|
/* We forward declare the CoglAttributeBuffer type here to avoid some circular
|
|
* dependency issues with the following headers.
|
|
*/
|
|
typedef struct _CoglAttributeBuffer CoglAttributeBuffer;
|
|
|
|
#include <cogl/cogl-context.h>
|
|
|
|
COGL_BEGIN_DECLS
|
|
|
|
/**
|
|
* SECTION:cogl-attribute-buffer
|
|
* @short_description: Functions for creating and manipulating attribute
|
|
* buffers
|
|
*
|
|
* FIXME
|
|
*/
|
|
|
|
#define COGL_ATTRIBUTE_BUFFER(buffer) ((CoglAttributeBuffer *)(buffer))
|
|
|
|
/**
|
|
* cogl_attribute_buffer_new_with_size:
|
|
* @context: A #CoglContext
|
|
* @bytes: The number of bytes to allocate for vertex attribute data.
|
|
*
|
|
* Describes a new #CoglAttributeBuffer of @size bytes to contain
|
|
* arrays of vertex attribute data. Afterwards data can be set using
|
|
* cogl_buffer_set_data() or by mapping it into the application's
|
|
* address space using cogl_buffer_map().
|
|
*
|
|
* The underlying storage of this buffer isn't allocated by this
|
|
* function so that you have an opportunity to use the
|
|
* cogl_buffer_set_update_hint() and cogl_buffer_set_usage_hint()
|
|
* functions which may influence how the storage is allocated. The
|
|
* storage will be allocated once you upload data to the buffer.
|
|
*
|
|
* Note: You can assume this function always succeeds and won't return
|
|
* %NULL
|
|
*
|
|
* Return value: (transfer full): A newly allocated #CoglAttributeBuffer. Never %NULL.
|
|
*
|
|
* Stability: Unstable
|
|
*/
|
|
CoglAttributeBuffer *
|
|
cogl_attribute_buffer_new_with_size (CoglContext *context,
|
|
size_t bytes);
|
|
|
|
/**
|
|
* cogl_attribute_buffer_new:
|
|
* @context: A #CoglContext
|
|
* @bytes: The number of bytes to allocate for vertex attribute data.
|
|
* @data: (array length=bytes): An optional pointer to vertex data to
|
|
* upload immediately.
|
|
*
|
|
* Describes a new #CoglAttributeBuffer of @size bytes to contain
|
|
* arrays of vertex attribute data and also uploads @size bytes read
|
|
* from @data to the new buffer.
|
|
*
|
|
* You should never pass a %NULL data pointer.
|
|
*
|
|
* <note>This function does not report out-of-memory errors back to
|
|
* the caller by returning %NULL and so you can assume this function
|
|
* always succeeds.</note>
|
|
*
|
|
* <note>In the unlikely case that there is an out of memory problem
|
|
* then Cogl will abort the application with a message. If your
|
|
* application needs to gracefully handle out-of-memory errors then
|
|
* you can use cogl_attribute_buffer_new_with_size() and then
|
|
* explicitly catch errors with cogl_buffer_set_data() or
|
|
* cogl_buffer_map().</note>
|
|
*
|
|
* Return value: (transfer full): A newly allocated #CoglAttributeBuffer (never %NULL)
|
|
*
|
|
* Since: 1.4
|
|
* Stability: Unstable
|
|
*/
|
|
CoglAttributeBuffer *
|
|
cogl_attribute_buffer_new (CoglContext *context,
|
|
size_t bytes,
|
|
const void *data);
|
|
|
|
/**
|
|
* cogl_is_attribute_buffer:
|
|
* @object: A #CoglObject
|
|
*
|
|
* Gets whether the given object references a #CoglAttributeBuffer.
|
|
*
|
|
* Returns: %TRUE if @object references a #CoglAttributeBuffer,
|
|
* %FALSE otherwise
|
|
*
|
|
* Since: 1.4
|
|
* Stability: Unstable
|
|
*/
|
|
CoglBool
|
|
cogl_is_attribute_buffer (void *object);
|
|
|
|
COGL_END_DECLS
|
|
|
|
#endif /* __COGL_ATTRIBUTE_BUFFER_H__ */
|
|
|