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76a38dd66a
The base class is useful for having multiple backing memory types other than the default. e.g. IOSurface, EGLImage, dmabuf? The PBO transfer logic is now inside GstGLMemoryPBO which uses GstGLBuffer to manage the PBO memory. This also moves the format utility functions into their own file.
140 lines
6.4 KiB
C
140 lines
6.4 KiB
C
/*
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* GStreamer
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* Copyright (C) 2012 Matthew Waters <ystreet00@gmail.com>
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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_MEMORY_PBO_H_
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#define _GST_GL_MEMORY_PBO_H_
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#include <gst/gst.h>
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#include <gst/gstallocator.h>
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#include <gst/gstmemory.h>
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#include <gst/video/video.h>
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#include <gst/gl/gstglmemory.h>
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G_BEGIN_DECLS
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#define GST_TYPE_GL_MEMORY_PBO_ALLOCATOR (gst_gl_memory_pbo_allocator_get_type())
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GType gst_gl_memory_pbo_allocator_get_type(void);
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#define GST_IS_GL_MEMORY_PBO_ALLOCATOR(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_GL_MEMORY_PBO_ALLOCATOR))
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#define GST_IS_GL_MEMORY_PBO_ALLOCATOR_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_GL_MEMORY_PBO_ALLOCATOR))
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#define GST_GL_MEMORY_PBO_ALLOCATOR_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_GL_MEMORY_PBO_ALLOCATOR, GstGLMemoryPBOAllocatorClass))
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#define GST_GL_MEMORY_PBO_ALLOCATOR(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_GL_MEMORY_PBO_ALLOCATOR, GstGLMemoryPBOAllocator))
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#define GST_GL_MEMORY_PBO_ALLOCATOR_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_GL_MEMORY_PBO_ALLOCATOR, GstGLAllocatorClass))
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#define GST_GL_MEMORY_PBO_ALLOCATOR_CAST(obj) ((GstGLMemoryPBOAllocator *)(obj))
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/**
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* GstGLMemoryPBO:
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*
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* Private instance
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*/
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struct _GstGLMemoryPBO
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{
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GstGLMemory mem;
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/* <private> */
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GstGLBuffer *pbo;
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};
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/**
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* GST_GL_MEMORY_PBO_ALLOCATOR:
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*
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* The name of the GL Memory PBO allocator
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*/
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#define GST_GL_MEMORY_PBO_ALLOCATOR_NAME "GLMemoryPBO"
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void gst_gl_memory_pbo_init_once (void);
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gboolean gst_is_gl_memory_pbo (GstMemory * mem);
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GstMemory * gst_gl_memory_pbo_alloc (GstGLContext * context,
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GstGLTextureTarget target,
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GstAllocationParams *params,
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GstVideoInfo * info,
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guint plane,
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GstVideoAlignment *valign);
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GstGLMemoryPBO * gst_gl_memory_pbo_wrapped (GstGLContext * context,
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GstGLTextureTarget target,
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GstVideoInfo * info,
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guint plane,
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GstVideoAlignment *valign,
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gpointer data,
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gpointer user_data,
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GDestroyNotify notify);
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GstGLMemoryPBO * gst_gl_memory_pbo_wrapped_texture (GstGLContext * context,
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guint texture_id,
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GstGLTextureTarget target,
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GstVideoInfo * info,
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guint plane,
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GstVideoAlignment *valign,
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gpointer user_data,
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GDestroyNotify notify);
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void gst_gl_memory_pbo_download_transfer (GstGLMemoryPBO * gl_mem);
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void gst_gl_memory_pbo_upload_transfer (GstGLMemoryPBO * gl_mem);
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gboolean gst_gl_memory_pbo_copy_into_texture (GstGLMemoryPBO *gl_mem,
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guint tex_id,
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GstGLTextureTarget target,
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GstVideoGLTextureType tex_type,
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gint width,
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gint height,
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gint stride,
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gboolean respecify);
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gboolean gst_gl_memory_pbo_setup_buffer (GstGLContext * context,
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GstGLTextureTarget target,
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GstAllocationParams * params,
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GstVideoInfo * info,
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GstVideoAlignment *valign,
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GstBuffer * buffer);
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gboolean gst_gl_memory_pbo_setup_wrapped (GstGLContext * context,
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GstGLTextureTarget target,
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GstVideoInfo * info,
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GstVideoAlignment *valign,
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gpointer data[GST_VIDEO_MAX_PLANES],
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GstGLMemoryPBO *textures[GST_VIDEO_MAX_PLANES],
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gpointer user_data,
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GDestroyNotify notify);
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/**
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* GstGLAllocator
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*
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* Opaque #GstGLAllocator struct
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*/
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struct _GstGLMemoryPBOAllocator
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{
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GstGLMemoryAllocator parent;
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};
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/**
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* GstGLAllocatorClass:
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*
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* The #GstGLAllocatorClass only contains private data
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*/
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struct _GstGLMemoryPBOAllocatorClass
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{
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GstGLMemoryAllocatorClass parent_class;
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};
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G_END_DECLS
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#endif /* _GST_GL_MEMORY_PBO_H_ */
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