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/*
* GStreamer
* Copyright (C) 2015 Matthew Waters <matthew@centricular.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef _GST_GL_BUFFER_H_
#define _GST_GL_BUFFER_H_
#include <gst/gst.h>
#include <gst/gstallocator.h>
#include <gst/gstmemory.h>
#include <gst/gl/gstglbasememory.h>
G_BEGIN_DECLS
#define GST_TYPE_GL_BUFFER_ALLOCATOR (gst_gl_buffer_allocator_get_type())
GType gst_gl_buffer_allocator_get_type(void);
#define GST_IS_GL_BUFFER_ALLOCATOR(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_GL_ALLOCATOR))
#define GST_IS_GL_BUFFER_ALLOCATOR_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_GL_BUFFER_ALLOCATOR))
#define GST_GL_BUFFER_ALLOCATOR_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_GL_BUFFER_ALLOCATOR, GstGLBufferAllocatorClass))
#define GST_GL_BUFFER_ALLOCATOR(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_GL_BUFFER_ALLOCATOR, GstGLBufferAllocator))
#define GST_GL_BUFFER_ALLOCATOR_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_GL_BUFFER_ALLOCATOR, GstGLBufferAllocatorClass))
#define GST_GL_BUFFER_ALLOCATOR_CAST(obj) ((GstGLBufferAllocator *)(obj))
/**
* GstGLBuffer:
* @mem: the parent object
* @context: the #GstGLContext to use for GL operations
* @id: the buffer id for this memory
* @target: the OpenGL target of this texture for binding purposes
* @usage_hints: the OpenGL usage hints this buffer was created with
*
* Represents information about a GL buffer
*/
struct _GstGLBuffer
{
GstGLBaseMemory mem;
guint id;
guint target; /* XXX: put this in the allocator? */
guint usage_hints; /* XXX: put this in the allocator? */
};
typedef struct _GstGLBufferAllocationParams GstGLBufferAllocationParams;
#define GST_GL_ALLOCATION_PARAMS_ALLOC_FLAG_BUFFER (1 << 4)
/**
* GstGLBufferAllocationParams:
* @parent: parent object
* @gl_target: the OpenGL target to bind the buffer to
* @gl_usage: the OpenGL usage hint to create the buffer with
*/
struct _GstGLBufferAllocationParams
{
GstGLAllocationParams parent;
guint gl_target;
guint gl_usage;
};
GstGLBufferAllocationParams * gst_gl_buffer_allocation_params_new (GstGLContext * context,
gsize alloc_size,
GstAllocationParams * alloc_params,
guint gl_target,
guint gl_usage);
/**
* GstGLBufferAllocator
*
* Opaque #GstGLAllocator struct
*/
struct _GstGLBufferAllocator
{
GstGLBaseMemoryAllocator parent;
};
/**
* GstGLBufferAllocatorClass:
*
* The #GstGLBufferAllocatorClass only contains private data
*/
struct _GstGLBufferAllocatorClass
{
GstGLBaseMemoryAllocatorClass parent_class;
};
#define GST_CAPS_FEATURE_MEMORY_GL_BUFFER "memory:GLBuffer"
/**
* GST_GL_BUFFER_ALLOCATOR_NAME:
*
* The name of the GL buffer allocator
*/
#define GST_GL_BUFFER_ALLOCATOR_NAME "GLBuffer"
void gst_gl_buffer_init_once (void);
gboolean gst_is_gl_buffer (GstMemory * mem);
GstGLBuffer * gst_gl_buffer_alloc (GstGLContext * context,
guint gl_target,
guint gl_usage,
GstAllocationParams * params,
gsize maxsize);
G_END_DECLS
#endif /* _GST_GL_BUFFER_H_ */
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