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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.
156 lines
6.1 KiB
C
156 lines
6.1 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_MEMORY_H_
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#define _GST_GL_MEMORY_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/gstglbasememory.h>
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G_BEGIN_DECLS
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#define GST_TYPE_GL_MEMORY_ALLOCATOR (gst_gl_memory_allocator_get_type())
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GType gst_gl_memory_allocator_get_type(void);
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#define GST_IS_GL_MEMORY_ALLOCATOR(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_GL_MEMORY_ALLOCATOR))
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#define GST_IS_GL_MEMORY_ALLOCATOR_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_GL_MEMORY_ALLOCATOR))
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#define GST_GL_MEMORY_ALLOCATOR_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_GL_MEMORY_ALLOCATOR, GstGLMemoryAllocatorClass))
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#define GST_GL_MEMORY_ALLOCATOR(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_GL_MEMORY_ALLOCATOR, GstGLMemoryAllocator))
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#define GST_GL_MEMORY_ALLOCATOR_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_GL_MEMORY_ALLOCATOR, GstGLMemoryAllocatorClass))
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#define GST_GL_MEMORY_ALLOCATOR_CAST(obj) ((GstGLMemoryAllocator *)(obj))
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#define GST_GL_MEMORY_CAST(obj) ((GstGLMemory *) obj)
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#define GST_CAPS_FEATURE_MEMORY_GL_MEMORY "memory:GLMemory"
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#define GST_GL_MEMORY_VIDEO_FORMATS_STR \
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"{ RGBA, BGRA, RGBx, BGRx, ARGB, ABGR, xRGB, xBGR, RGB, BGR, RGB16, BGR16, " \
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"AYUV, I420, YV12, NV12, NV21, YUY2, UYVY, Y41B, Y42B, Y444, " \
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"GRAY8, GRAY16_LE, GRAY16_BE }"
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/**
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* GstGLMemory:
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* @mem: the parent object
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* @context: the #GstGLContext to use for GL operations
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* @tex_id: the GL texture id for this memory
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* @tex_target: the GL texture target for this memory
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* @tex_type: the texture type
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* @info: the texture's #GstVideoInfo
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* @valign: data alignment for system memory mapping
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* @plane: data plane in @info
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* @tex_scaling: GL shader scaling parameters for @valign and/or width/height
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*
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* Represents information about a GL texture
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*/
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struct _GstGLMemory
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{
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GstGLBaseMemory mem;
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guint tex_id;
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GstGLTextureTarget tex_target;
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GstVideoGLTextureType tex_type;
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GstVideoInfo info;
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GstVideoAlignment valign;
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guint plane;
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gfloat tex_scaling[2];
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/* <protected> */
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gboolean texture_wrapped;
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guint unpack_length;
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guint tex_width;
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};
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/**
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* GstGLMemoryAllocator
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*
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* Opaque #GstGLMemoryAllocator struct
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*/
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struct _GstGLMemoryAllocator
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{
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GstGLBaseMemoryAllocator parent;
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};
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/**
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* GstGLMemoryAllocatorClass:
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*
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* The #GstGLMemoryAllocatorClass only contains private data
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*/
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struct _GstGLMemoryAllocatorClass
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{
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GstGLBaseMemoryAllocatorClass parent_class;
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GstGLBaseMemoryAllocatorMapFunction map;
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GstGLBaseMemoryAllocatorCopyFunction copy;
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GstGLBaseMemoryAllocatorUnmapFunction unmap;
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};
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#include <gst/gl/gstglbasememory.h>
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/**
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* GST_GL_MEMORY_ALLOCATOR_NAME:
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*
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* The name of the GL memory allocator
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*/
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#define GST_GL_MEMORY_ALLOCATOR_NAME "GLMemory"
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void gst_gl_memory_init_once (void);
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gboolean gst_is_gl_memory (GstMemory * mem);
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void gst_gl_memory_init (GstGLMemory * mem,
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GstAllocator * allocator,
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GstMemory * parent,
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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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GDestroyNotify notify,
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gpointer user_data);
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gboolean gst_gl_memory_copy_into (GstGLMemory *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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gboolean gst_gl_memory_copy_teximage (GstGLMemory * src,
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guint tex_id,
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GstGLTextureTarget out_target,
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GstVideoGLTextureType out_tex_type,
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gint width,
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gint height);
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gboolean gst_gl_memory_read_pixels (GstGLMemory * gl_mem,
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gpointer read_pointer);
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/* accessors */
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gint gst_gl_memory_get_texture_width (GstGLMemory * gl_mem);
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gint gst_gl_memory_get_texture_height (GstGLMemory * gl_mem);
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GstVideoGLTextureType gst_gl_memory_get_texture_type (GstGLMemory * gl_mem);
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GstGLTextureTarget gst_gl_memory_get_texture_target (GstGLMemory * gl_mem);
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guint gst_gl_memory_get_texture_id (GstGLMemory * gl_mem);
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G_END_DECLS
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#endif /* _GST_GL_MEMORY_H_ */
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