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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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a10b35c011
They can't be used in any useful way. The type of every GstMemory is always GST_TYPE_MEMORY and the subtyping relationship has to be implemented on top of that via the associated allocator and mem_type string. Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/1764>
152 lines
4.7 KiB
C
152 lines
4.7 KiB
C
/*
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* GStreamer
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* Copyright (C) 2015 Matthew Waters <matthew@centricular.com>
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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 Library 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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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#ifndef _GST_GL_BUFFER_H_
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#define _GST_GL_BUFFER_H_
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#include <gst/gl/gstglbasememory.h>
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G_BEGIN_DECLS
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#define GST_TYPE_GL_BUFFER_ALLOCATOR (gst_gl_buffer_allocator_get_type())
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GST_GL_API
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GType gst_gl_buffer_allocator_get_type(void);
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#define GST_IS_GL_BUFFER_ALLOCATOR(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_GL_ALLOCATOR))
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#define GST_IS_GL_BUFFER_ALLOCATOR_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_GL_BUFFER_ALLOCATOR))
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#define GST_GL_BUFFER_ALLOCATOR_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_GL_BUFFER_ALLOCATOR, GstGLBufferAllocatorClass))
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#define GST_GL_BUFFER_ALLOCATOR(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_GL_BUFFER_ALLOCATOR, GstGLBufferAllocator))
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#define GST_GL_BUFFER_ALLOCATOR_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_GL_BUFFER_ALLOCATOR, GstGLBufferAllocatorClass))
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#define GST_GL_BUFFER_ALLOCATOR_CAST(obj) ((GstGLBufferAllocator *)(obj))
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/**
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* GstGLBuffer:
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* @mem: the parent object
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* @id: the buffer id for this memory
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* @target: the OpenGL target of this texture for binding purposes
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* @usage_hints: the OpenGL usage hints this buffer was created with
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*
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* Represents information about a GL buffer
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*/
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struct _GstGLBuffer
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{
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GstGLBaseMemory mem;
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guint id;
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guint target; /* XXX: put this in the allocator? */
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guint usage_hints; /* XXX: put this in the allocator? */
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};
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typedef struct _GstGLBufferAllocationParams GstGLBufferAllocationParams;
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#define GST_TYPE_GL_BUFFER_ALLOCATION_PARAMS (gst_gl_buffer_allocation_params_get_type())
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GST_GL_API
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GType gst_gl_buffer_allocation_params_get_type (void);
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/**
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* GST_GL_ALLOCATION_PARAMS_ALLOC_FLAG_BUFFER:
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*
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* GL allocation flag indicating the allocation of a GL buffer.
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*/
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#define GST_GL_ALLOCATION_PARAMS_ALLOC_FLAG_BUFFER (1 << 4)
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/**
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* GstGLBufferAllocationParams:
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* @parent: parent object
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* @gl_target: the OpenGL target to bind the buffer to
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* @gl_usage: the OpenGL usage hint to create the buffer with
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*/
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struct _GstGLBufferAllocationParams
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{
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GstGLAllocationParams parent;
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guint gl_target;
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guint gl_usage;
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/*< private >*/
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gpointer _padding[GST_PADDING];
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};
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GST_GL_API
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GstGLBufferAllocationParams * gst_gl_buffer_allocation_params_new (GstGLContext * context,
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gsize alloc_size,
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const GstAllocationParams * alloc_params,
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guint gl_target,
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guint gl_usage);
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/**
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* GstGLBufferAllocator:
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*
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* Opaque #GstGLBufferAllocator struct
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*/
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struct _GstGLBufferAllocator
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{
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GstGLBaseMemoryAllocator parent;
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/*< private >*/
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gpointer _padding[GST_PADDING];
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};
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/**
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* GstGLBufferAllocatorClass:
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*
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* The #GstGLBufferAllocatorClass only contains private data
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*/
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struct _GstGLBufferAllocatorClass
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{
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GstGLBaseMemoryAllocatorClass parent_class;
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/*< private >*/
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gpointer _padding[GST_PADDING];
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};
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/**
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* GST_CAPS_FEATURE_MEMORY_GL_BUFFER:
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*
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* Name of the caps feature indicating the use of GL buffers
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*/
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#define GST_CAPS_FEATURE_MEMORY_GL_BUFFER "memory:GLBuffer"
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/**
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* GST_GL_BUFFER_ALLOCATOR_NAME:
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*
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* The name of the GL buffer allocator
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*/
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#define GST_GL_BUFFER_ALLOCATOR_NAME "GLBuffer"
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/**
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* GST_TYPE_GL_BUFFER:
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*
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* Since: 1.20
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* Deprecated: 1.22: This type has no use.
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*/
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#define GST_TYPE_GL_BUFFER (gst_gl_buffer_get_type())
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GST_GL_DEPRECATED
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GType gst_gl_buffer_get_type(void);
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GST_GL_API
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void gst_gl_buffer_init_once (void);
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GST_GL_API
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gboolean gst_is_gl_buffer (GstMemory * mem);
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G_END_DECLS
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#endif /* _GST_GL_BUFFER_H_ */
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