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119 lines
3.6 KiB
C
119 lines
3.6 KiB
C
/*
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* Cogl
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*
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* An object oriented GL/GLES Abstraction/Utility Layer
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*
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* Copyright (C) 2008,2009,2010 Intel Corporation.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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*
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*
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* Authors:
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* Damien Lespiau <damien.lespiau@intel.com>
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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_PIXEL_BUFFER_H__
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#define __COGL_PIXEL_BUFFER_H__
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/* XXX: We forward declare CoglPixelBuffer here to allow for circular
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* dependencies between some headers */
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typedef struct _CoglPixelBuffer CoglPixelBuffer;
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#include <cogl/cogl-types.h>
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#include <cogl/cogl-context.h>
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COGL_BEGIN_DECLS
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#define COGL_PIXEL_BUFFER(buffer) ((CoglPixelBuffer *)(buffer))
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/**
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* cogl_pixel_buffer_new:
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* @context: A #CoglContext
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* @size: The number of bytes to allocate for the pixel data.
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* @data: An optional pointer to vertex data to upload immediately
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*
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* Declares a new #CoglPixelBuffer of @size bytes to contain arrays of
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* pixels. Once declared, data can be set using cogl_buffer_set_data()
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* or by mapping it into the application's address space using
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* cogl_buffer_map().
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*
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* If @data isn't %NULL then @size bytes will be read from @data and
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* immediately copied into the new buffer.
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*
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* Return value: (transfer full): a newly allocated #CoglPixelBuffer
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*
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* Since: 1.10
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* Stability: unstable
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*/
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CoglPixelBuffer *
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cogl_pixel_buffer_new (CoglContext *context,
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size_t size,
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const void *data);
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/**
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* cogl_is_pixel_buffer:
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* @object: a #CoglObject to test
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*
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* Checks whether @object is a pixel buffer.
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*
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* Return value: %TRUE if the @object is a pixel buffer, and %FALSE
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* otherwise
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*
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* Since: 1.2
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* Stability: Unstable
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*/
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CoglBool
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cogl_is_pixel_buffer (void *object);
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#if 0
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/*
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* cogl_pixel_buffer_set_region:
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* @buffer: A #CoglPixelBuffer object
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* @data: pixel data to upload to @array
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* @src_width: width in pixels of the region to update
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* @src_height: height in pixels of the region to update
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* @src_rowstride: row stride in bytes of the source array
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* @dst_x: upper left destination horizontal coordinate
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* @dst_y: upper left destination vertical coordinate
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*
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* Uploads new data into a pixel array. The source data pointed by @data can
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* have a different stride than @array in which case the function will do the
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* right thing for you. For performance reasons, it is recommended for the
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* source data to have the same stride than @array.
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*
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* Return value: %TRUE if the upload succeeded, %FALSE otherwise
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*
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* Since: 1.2
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* Stability: Unstable
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*/
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CoglBool
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cogl_pixel_buffer_set_region (CoglPixelBuffer *buffer,
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uint8_t *data,
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unsigned int src_width,
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unsigned int src_height,
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unsigned int src_rowstride,
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unsigned int dst_x,
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unsigned int dst_y);
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#endif
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COGL_END_DECLS
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#endif /* __COGL_PIXEL_BUFFER_H__ */
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