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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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28dbe4fffc
Add gst_gl_memory_allocator_get_default to get the default allocator based on the opengl version. Allows us to stop hardcoding the PBO allocator which isn't supported on gles2. Fixes GL upload on iOS9 among other things.
224 lines
11 KiB
C
224 lines
11 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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typedef struct _GstGLVideoAllocationParams GstGLVideoAllocationParams;
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#define GST_GL_ALLOCATION_PARAMS_ALLOC_FLAG_VIDEO (1 << 3)
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struct _GstGLVideoAllocationParams
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{
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GstGLAllocationParams parent;
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GstVideoInfo *v_info;
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guint plane;
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GstVideoAlignment *valign;
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GstGLTextureTarget target;
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};
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gboolean gst_gl_video_allocation_params_init_full (GstGLVideoAllocationParams * params,
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gsize struct_size,
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guint alloc_flags,
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GstGLAllocationParamsCopyFunc copy,
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GstGLAllocationParamsFreeFunc free,
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GstGLContext * context,
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GstAllocationParams * alloc_params,
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GstVideoInfo * v_info,
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guint plane,
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GstVideoAlignment * valign,
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GstGLTextureTarget target,
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gpointer wrapped_data,
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guint gl_handle,
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gpointer user_data,
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GDestroyNotify notify);
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GstGLVideoAllocationParams * gst_gl_video_allocation_params_new (GstGLContext * context,
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GstAllocationParams * alloc_params,
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GstVideoInfo * v_info,
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guint plane,
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GstVideoAlignment * valign,
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GstGLTextureTarget target);
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GstGLVideoAllocationParams * gst_gl_video_allocation_params_new_wrapped_data (GstGLContext * context,
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GstAllocationParams * alloc_params,
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GstVideoInfo * v_info,
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guint plane,
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GstVideoAlignment * valign,
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GstGLTextureTarget target,
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gpointer wrapped_data,
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gpointer user_data,
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GDestroyNotify notify);
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GstGLVideoAllocationParams * gst_gl_video_allocation_params_new_wrapped_texture (GstGLContext * context,
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GstAllocationParams * alloc_params,
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GstVideoInfo * v_info,
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guint plane,
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GstVideoAlignment * valign,
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GstGLTextureTarget target,
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guint tex_id,
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gpointer user_data,
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GDestroyNotify notify);
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/* subclass usage */
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void gst_gl_video_allocation_params_free_data (GstGLVideoAllocationParams * params);
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/* subclass usage */
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void gst_gl_video_allocation_params_copy_data (GstGLVideoAllocationParams * src,
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GstGLVideoAllocationParams * dest);
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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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gpointer user_data,
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GDestroyNotify notify);
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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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gboolean gst_gl_memory_setup_buffer (GstGLMemoryAllocator * allocator,
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GstBuffer * buffer,
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GstGLVideoAllocationParams * params);
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GstGLMemoryAllocator * gst_gl_memory_allocator_get_default (GstGLContext *context);
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G_END_DECLS
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#endif /* _GST_GL_MEMORY_H_ */
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