gstreamer/gst-libs/gst/gl/egl/gstglmemoryegl.h
Gwang Yoon Hwang c83fd26c80 gl: implement GstGLMemoryEGL
Because current GstEGLImageMemory does not inherit GstGLMemory, GLUpload
allocates additional GLMemory and upload the decoded contents from the decoder
which uses EGLImage (e.g. gst-omx in RPi).

This work adds GstGLMemoryEGL to avoid this overhead. Decoders allocate
GstGLMemoryEGL and decode its contents to the EGLImage of GstGLMemoryEGL.  And
GLUpload uses this memory without allocation of additional textures and blit
operations.

[Matthew Waters]: gst-indent the sources and fix a critical retreiving the egl
display from the memory.

https://bugzilla.gnome.org/show_bug.cgi?id=760916
2016-05-04 12:57:27 +10:00

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3.5 KiB
C

/*
* GStreamer
* Copyright (C) 2012 Collabora Ltd.
* @author: Sebastian Dröge <sebastian.droege@collabora.co.uk>
* Copyright (C) 2014 Julien Isorce <julien.isorce@gmail.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_MEMORY_EGL_H_
#define _GST_GL_MEMORY_EGL_H_
#include <gst/gst.h>
#include <gst/gstallocator.h>
#include <gst/gstmemory.h>
#include <gst/video/video.h>
#include <gst/gl/gl.h>
#include "gstglcontext_egl.h"
#include <gst/gl/gstglmemory.h>
G_BEGIN_DECLS
#define GST_TYPE_GL_MEMORY_EGL_ALLOCATOR (gst_gl_memory_egl_allocator_get_type())
GType gst_gl_memory_egl_allocator_get_type(void);
#define GST_IS_GL_MEMORY_EGL_ALLOCATOR(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_GL_MEMORY_EGL_ALLOCATOR))
#define GST_IS_GL_MEMORY_EGL_ALLOCATOR_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_GL_MEMORY_EGL_ALLOCATOR))
#define GST_GL_MEMORY_EGL_ALLOCATOR_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_GL_MEMORY_EGL_ALLOCATOR, GstGLMemoryEGLAllocatorClass))
#define GST_GL_MEMORY_EGL_ALLOCATOR(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_GL_MEMORY_EGL_ALLOCATOR, GstGLMemoryEGLAllocator))
#define GST_GL_MEMORY_EGL_ALLOCATOR_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_GL_MEMORY_EGL_ALLOCATOR, GstGLAllocatorClass))
#define GST_GL_MEMORY_EGL_ALLOCATOR_CAST(obj) ((GstGLMemoryEGLAllocator *)(obj))
typedef void (*GstEGLImageDestroyNotify) (GstGLContextEGL * context,
gpointer data);
typedef struct _GstEGLImageMemory GstEGLImageMemory;
/**
* GstGLMemoryEGL:
*
* Private instance
*/
struct _GstGLMemoryEGL
{
GstGLMemory mem;
EGLImageKHR image;
GstVideoGLTextureOrientation orientation;
};
/**
* GST_GL_MEMORY_EGL_ALLOCATOR:
*
* The name of the GL Memory EGL allocator
*/
#define GST_GL_MEMORY_EGL_ALLOCATOR_NAME "GLMemoryEGL"
void gst_gl_memory_egl_init_once (void);
gboolean gst_is_gl_memory_egl (GstMemory * mem);
EGLImageKHR gst_gl_memory_egl_get_image (GstGLMemoryEGL * mem);
EGLDisplay gst_gl_memory_egl_get_display (GstGLMemoryEGL * mem);
GstVideoGLTextureOrientation gst_gl_memory_egl_get_orientation
(GstGLMemoryEGL * mem);
void gst_gl_memory_egl_set_orientation (GstGLMemoryEGL * mem,
GstVideoGLTextureOrientation orientation);
/**
* GstGLAllocator
*
* Opaque #GstGLAllocator struct
*/
struct _GstGLMemoryEGLAllocator
{
GstGLMemoryAllocator parent;
};
/**
* GstGLAllocatorClass:
*
* The #GstGLAllocatorClass only contains private data
*/
struct _GstGLMemoryEGLAllocatorClass
{
GstGLMemoryAllocatorClass parent_class;
};
G_END_DECLS
#endif /* _GST_GL_MEMORY_EGL_H_ */