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3a4a858ce3
This macro was introduced so as to be able to be built without GLib. However, this feature was long ago removed, and in Mutter we depend on it anyway, so let's get rid of it in favor of more consistency.
149 lines
4.7 KiB
C
149 lines
4.7 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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*
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*
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* Authors:
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* Robert Bragg <robert@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_ATTRIBUTE_BUFFER_H__
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#define __COGL_ATTRIBUTE_BUFFER_H__
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/* We forward declare the CoglAttributeBuffer type here to avoid some circular
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* dependency issues with the following headers.
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*/
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typedef struct _CoglAttributeBuffer CoglAttributeBuffer;
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#include <cogl/cogl-context.h>
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#include <glib-object.h>
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G_BEGIN_DECLS
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/**
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* SECTION:cogl-attribute-buffer
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* @short_description: Functions for creating and manipulating attribute
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* buffers
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*
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* FIXME
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*/
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#define COGL_ATTRIBUTE_BUFFER(buffer) ((CoglAttributeBuffer *)(buffer))
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/**
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* cogl_attribute_buffer_get_gtype:
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*
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* Returns: a #GType that can be used with the GLib type system.
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*/
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GType cogl_attribute_buffer_get_gtype (void);
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/**
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* cogl_attribute_buffer_new_with_size:
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* @context: A #CoglContext
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* @bytes: The number of bytes to allocate for vertex attribute data.
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*
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* Describes a new #CoglAttributeBuffer of @size bytes to contain
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* arrays of vertex attribute data. Afterwards data can be set using
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* cogl_buffer_set_data() or by mapping it into the application's
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* address space using cogl_buffer_map().
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*
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* The underlying storage of this buffer isn't allocated by this
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* function so that you have an opportunity to use the
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* cogl_buffer_set_update_hint() and cogl_buffer_set_usage_hint()
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* functions which may influence how the storage is allocated. The
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* storage will be allocated once you upload data to the buffer.
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*
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* Note: You can assume this function always succeeds and won't return
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* %NULL
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*
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* Return value: (transfer full): A newly allocated #CoglAttributeBuffer. Never %NULL.
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*
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* Stability: Unstable
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*/
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CoglAttributeBuffer *
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cogl_attribute_buffer_new_with_size (CoglContext *context,
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size_t bytes);
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/**
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* cogl_attribute_buffer_new:
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* @context: A #CoglContext
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* @bytes: The number of bytes to allocate for vertex attribute data.
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* @data: (array length=bytes): An optional pointer to vertex data to
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* upload immediately.
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*
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* Describes a new #CoglAttributeBuffer of @size bytes to contain
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* arrays of vertex attribute data and also uploads @size bytes read
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* from @data to the new buffer.
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*
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* You should never pass a %NULL data pointer.
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*
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* <note>This function does not report out-of-memory errors back to
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* the caller by returning %NULL and so you can assume this function
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* always succeeds.</note>
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*
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* <note>In the unlikely case that there is an out of memory problem
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* then Cogl will abort the application with a message. If your
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* application needs to gracefully handle out-of-memory errors then
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* you can use cogl_attribute_buffer_new_with_size() and then
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* explicitly catch errors with cogl_buffer_set_data() or
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* cogl_buffer_map().</note>
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*
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* Return value: (transfer full): A newly allocated #CoglAttributeBuffer (never %NULL)
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*
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* Since: 1.4
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* Stability: Unstable
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*/
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CoglAttributeBuffer *
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cogl_attribute_buffer_new (CoglContext *context,
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size_t bytes,
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const void *data);
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/**
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* cogl_is_attribute_buffer:
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* @object: A #CoglObject
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*
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* Gets whether the given object references a #CoglAttributeBuffer.
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*
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* Returns: %TRUE if @object references a #CoglAttributeBuffer,
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* %FALSE otherwise
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*
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* Since: 1.4
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* Stability: Unstable
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*/
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CoglBool
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cogl_is_attribute_buffer (void *object);
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G_END_DECLS
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#endif /* __COGL_ATTRIBUTE_BUFFER_H__ */
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