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gstreamer/gst-libs/gst/gl/gstglmemory.h

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[514/906] add GstGLMemory and allocator implement custom GstMemory for GL textures currently map/unmap returns NULL although it might be favourable to upload/download/cache the image data
2012-07-06 08:22:22 +00:00
/*
* GStreamer
glmemory: base classify and add the pbo memory on top 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.
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* Copyright (C) 2015 Matthew Waters <matthew@centricular.com>
[514/906] add GstGLMemory and allocator implement custom GstMemory for GL textures currently map/unmap returns NULL although it might be favourable to upload/download/cache the image data
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*
* 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
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* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
[514/906] add GstGLMemory and allocator implement custom GstMemory for GL textures currently map/unmap returns NULL although it might be favourable to upload/download/cache the image data
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*/
#ifndef _GST_GL_MEMORY_H_
#define _GST_GL_MEMORY_H_
#include <gst/gst.h>
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#include <gst/gstallocator.h>
[732/906] build: fix repeated typedefs Write forward declarations in another way to avoid repeated typedefs "error: redefinition of typedef". Raised when using i686-apple-darwin11-llvm-gcc-4.2 It seems that C apple compiler does not support C11 feature. https://bugzilla.gnome.org/show_bug.cgi?id=703885
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#include <gst/gstmemory.h>
#include <gst/video/video.h>
[514/906] add GstGLMemory and allocator implement custom GstMemory for GL textures currently map/unmap returns NULL although it might be favourable to upload/download/cache the image data
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glmemory: base classify and add the pbo memory on top 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.
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#include <gst/gl/gstglbasememory.h>
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G_BEGIN_DECLS
glmemory: base classify and add the pbo memory on top 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.
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#define GST_TYPE_GL_MEMORY_ALLOCATOR (gst_gl_memory_allocator_get_type())
GType gst_gl_memory_allocator_get_type(void);
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glmemory: base classify and add the pbo memory on top 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.
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#define GST_IS_GL_MEMORY_ALLOCATOR(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GST_TYPE_GL_MEMORY_ALLOCATOR))
#define GST_IS_GL_MEMORY_ALLOCATOR_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GST_TYPE_GL_MEMORY_ALLOCATOR))
#define GST_GL_MEMORY_ALLOCATOR_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GST_TYPE_GL_MEMORY_ALLOCATOR, GstGLMemoryAllocatorClass))
#define GST_GL_MEMORY_ALLOCATOR(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GST_TYPE_GL_MEMORY_ALLOCATOR, GstGLMemoryAllocator))
#define GST_GL_MEMORY_ALLOCATOR_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GST_TYPE_GL_MEMORY_ALLOCATOR, GstGLMemoryAllocatorClass))
#define GST_GL_MEMORY_ALLOCATOR_CAST(obj) ((GstGLMemoryAllocator *)(obj))
[514/906] add GstGLMemory and allocator implement custom GstMemory for GL textures currently map/unmap returns NULL although it might be favourable to upload/download/cache the image data
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glmemory: base classify and add the pbo memory on top 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.
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#define GST_GL_MEMORY_CAST(obj) ((GstGLMemory *) obj)
glmemory: add support for rectangle textures Add the various tokens/strings for the differnet texture types (2D, rect, oes) Changes the GLmemory api to include the GstGLTextureTarget in all relevant functions. Update the relevant caps/templates for 2D only textures.
2015-10-28 13:44:26 +00:00
glmemory: base classify and add the pbo memory on top 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.
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#define GST_CAPS_FEATURE_MEMORY_GL_MEMORY "memory:GLMemory"
#define GST_GL_MEMORY_VIDEO_FORMATS_STR \
"{ RGBA, BGRA, RGBx, BGRx, ARGB, ABGR, xRGB, xBGR, RGB, BGR, RGB16, BGR16, " \
"AYUV, I420, YV12, NV12, NV21, YUY2, UYVY, Y41B, Y42B, Y444, " \
"GRAY8, GRAY16_LE, GRAY16_BE }"
glmemory: add support for rectangle textures Add the various tokens/strings for the differnet texture types (2D, rect, oes) Changes the GLmemory api to include the GstGLTextureTarget in all relevant functions. Update the relevant caps/templates for 2D only textures.
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[514/906] add GstGLMemory and allocator implement custom GstMemory for GL textures currently map/unmap returns NULL although it might be favourable to upload/download/cache the image data
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/**
* GstGLMemory:
* @mem: the parent object
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* @context: the #GstGLContext to use for GL operations
glmemory: implement on top of glbasebuffer Provides convenient access to PBO usage. Currently texture updates are coupled tightly to data transfers.
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* @tex_id: the GL texture id for this memory
* @tex_target: the GL texture target for this memory
* @tex_type: the texture type
* @info: the texture's #GstVideoInfo
* @valign: data alignment for system memory mapping
* @plane: data plane in @info
* @tex_scaling: GL shader scaling parameters for @valign and/or width/height
[514/906] add GstGLMemory and allocator implement custom GstMemory for GL textures currently map/unmap returns NULL although it might be favourable to upload/download/cache the image data
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*
* Represents information about a GL texture
*/
struct _GstGLMemory
{
glmemory: base classify and add the pbo memory on top 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.
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GstGLBaseMemory mem;
guint tex_id;
GstGLTextureTarget tex_target;
GstVideoGLTextureType tex_type;
GstVideoInfo info;
GstVideoAlignment valign;
guint plane;
gfloat tex_scaling[2];
/* <protected> */
gboolean texture_wrapped;
guint unpack_length;
guint tex_width;
[514/906] add GstGLMemory and allocator implement custom GstMemory for GL textures currently map/unmap returns NULL although it might be favourable to upload/download/cache the image data
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};
glmemory: implement GstGLBaseMemory::alloc - Create GstGLVideoAllocationParams which is a GstGLAllocationParams subclass. - Make it possible to allocate glmemory objects directly if no frills are needed.
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typedef struct _GstGLVideoAllocationParams GstGLVideoAllocationParams;
#define GST_GL_ALLOCATION_PARAMS_ALLOC_FLAG_VIDEO (1 << 3)
struct _GstGLVideoAllocationParams
{
GstGLAllocationParams parent;
GstVideoInfo *v_info;
guint plane;
GstVideoAlignment *valign;
GstGLTextureTarget target;
};
gboolean gst_gl_video_allocation_params_init_full (GstGLVideoAllocationParams * params,
gsize struct_size,
guint alloc_flags,
GstGLAllocationParamsCopyFunc copy,
GstGLAllocationParamsFreeFunc free,
GstGLContext * context,
GstAllocationParams * alloc_params,
GstVideoInfo * v_info,
guint plane,
GstVideoAlignment * valign,
GstGLTextureTarget target,
gpointer wrapped_data,
guint gl_handle,
gl*memory*: reverse the parameter order of user_data and destroy notify The convention is to have the destroy notify last after any user data
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gpointer user_data,
GDestroyNotify notify);
glmemory: implement GstGLBaseMemory::alloc - Create GstGLVideoAllocationParams which is a GstGLAllocationParams subclass. - Make it possible to allocate glmemory objects directly if no frills are needed.
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GstGLVideoAllocationParams * gst_gl_video_allocation_params_new (GstGLContext * context,
GstAllocationParams * alloc_params,
GstVideoInfo * v_info,
guint plane,
GstVideoAlignment * valign,
GstGLTextureTarget target);
GstGLVideoAllocationParams * gst_gl_video_allocation_params_new_wrapped_data (GstGLContext * context,
GstAllocationParams * alloc_params,
GstVideoInfo * v_info,
guint plane,
GstVideoAlignment * valign,
GstGLTextureTarget target,
gpointer wrapped_data,
gl*memory*: reverse the parameter order of user_data and destroy notify The convention is to have the destroy notify last after any user data
2015-12-17 04:23:13 +00:00
gpointer user_data,
GDestroyNotify notify);
glmemory: implement GstGLBaseMemory::alloc - Create GstGLVideoAllocationParams which is a GstGLAllocationParams subclass. - Make it possible to allocate glmemory objects directly if no frills are needed.
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GstGLVideoAllocationParams * gst_gl_video_allocation_params_new_wrapped_texture (GstGLContext * context,
GstAllocationParams * alloc_params,
GstVideoInfo * v_info,
guint plane,
GstVideoAlignment * valign,
GstGLTextureTarget target,
guint tex_id,
gl*memory*: reverse the parameter order of user_data and destroy notify The convention is to have the destroy notify last after any user data
2015-12-17 04:23:13 +00:00
gpointer user_data,
GDestroyNotify notify);
glmemory: implement GstGLBaseMemory::alloc - Create GstGLVideoAllocationParams which is a GstGLAllocationParams subclass. - Make it possible to allocate glmemory objects directly if no frills are needed.
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/* subclass usage */
void gst_gl_video_allocation_params_free_data (GstGLVideoAllocationParams * params);
/* subclass usage */
void gst_gl_video_allocation_params_copy_data (GstGLVideoAllocationParams * src,
GstGLVideoAllocationParams * dest);
[600/906] docs: add docs for new objects and expand on some existing ones
2012-09-27 05:53:46 +00:00
/**
glmemory: base classify and add the pbo memory on top 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.
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* GstGLMemoryAllocator
[600/906] docs: add docs for new objects and expand on some existing ones
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*
glmemory: base classify and add the pbo memory on top 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.
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* Opaque #GstGLMemoryAllocator struct
[600/906] docs: add docs for new objects and expand on some existing ones
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*/
glmemory: base classify and add the pbo memory on top 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.
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struct _GstGLMemoryAllocator
{
GstGLBaseMemoryAllocator parent;
};
glmemory: add support for rectangle textures Add the various tokens/strings for the differnet texture types (2D, rect, oes) Changes the GLmemory api to include the GstGLTextureTarget in all relevant functions. Update the relevant caps/templates for 2D only textures.
2015-10-28 13:44:26 +00:00
[600/906] docs: add docs for new objects and expand on some existing ones
2012-09-27 05:53:46 +00:00
/**
glmemory: base classify and add the pbo memory on top 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.
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* GstGLMemoryAllocatorClass:
[600/906] docs: add docs for new objects and expand on some existing ones
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*
glmemory: base classify and add the pbo memory on top 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.
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* The #GstGLMemoryAllocatorClass only contains private data
[600/906] docs: add docs for new objects and expand on some existing ones
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*/
glmemory: base classify and add the pbo memory on top 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.
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struct _GstGLMemoryAllocatorClass
[554/906] GstGLMemory: update for GstAllocator API changes
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{
glmemory: implement GstGLBaseMemory::alloc - Create GstGLVideoAllocationParams which is a GstGLAllocationParams subclass. - Make it possible to allocate glmemory objects directly if no frills are needed.
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GstGLBaseMemoryAllocatorClass parent_class;
glmemory: base classify and add the pbo memory on top 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.
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GstGLBaseMemoryAllocatorMapFunction map;
GstGLBaseMemoryAllocatorCopyFunction copy;
GstGLBaseMemoryAllocatorUnmapFunction unmap;
[554/906] GstGLMemory: update for GstAllocator API changes
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};
glmemory: base classify and add the pbo memory on top 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.
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#include <gst/gl/gstglbasememory.h>
[600/906] docs: add docs for new objects and expand on some existing ones
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/**
glmemory: base classify and add the pbo memory on top 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.
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* GST_GL_MEMORY_ALLOCATOR_NAME:
[600/906] docs: add docs for new objects and expand on some existing ones
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*
glmemory: base classify and add the pbo memory on top 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.
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* The name of the GL memory allocator
[600/906] docs: add docs for new objects and expand on some existing ones
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*/
glmemory: base classify and add the pbo memory on top 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.
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#define GST_GL_MEMORY_ALLOCATOR_NAME "GLMemory"
void gst_gl_memory_init_once (void);
gboolean gst_is_gl_memory (GstMemory * mem);
void gst_gl_memory_init (GstGLMemory * mem,
GstAllocator * allocator,
GstMemory * parent,
GstGLContext * context,
GstGLTextureTarget target,
GstAllocationParams *params,
GstVideoInfo * info,
guint plane,
GstVideoAlignment *valign,
gl*memory*: reverse the parameter order of user_data and destroy notify The convention is to have the destroy notify last after any user data
2015-12-17 04:23:13 +00:00
gpointer user_data,
GDestroyNotify notify);
glmemory: base classify and add the pbo memory on top 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.
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gboolean gst_gl_memory_copy_into (GstGLMemory *gl_mem,
guint tex_id,
GstGLTextureTarget target,
GstVideoGLTextureType tex_type,
gint width,
gint height);
gboolean gst_gl_memory_copy_teximage (GstGLMemory * src,
guint tex_id,
GstGLTextureTarget out_target,
GstVideoGLTextureType out_tex_type,
gint width,
gint height);
gboolean gst_gl_memory_read_pixels (GstGLMemory * gl_mem,
gpointer read_pointer);
/* accessors */
gint gst_gl_memory_get_texture_width (GstGLMemory * gl_mem);
gint gst_gl_memory_get_texture_height (GstGLMemory * gl_mem);
GstVideoGLTextureType gst_gl_memory_get_texture_type (GstGLMemory * gl_mem);
GstGLTextureTarget gst_gl_memory_get_texture_target (GstGLMemory * gl_mem);
guint gst_gl_memory_get_texture_id (GstGLMemory * gl_mem);
[554/906] GstGLMemory: update for GstAllocator API changes
2012-08-08 06:08:40 +00:00
glmemory: implement GstGLBaseMemory::alloc - Create GstGLVideoAllocationParams which is a GstGLAllocationParams subclass. - Make it possible to allocate glmemory objects directly if no frills are needed.
2015-12-16 07:20:17 +00:00
gboolean gst_gl_memory_setup_buffer (GstGLMemoryAllocator * allocator,
GstBuffer * buffer,
GstGLVideoAllocationParams * params);
glmemory: add gst_gl_memory_allocator_get_default 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.
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GstGLMemoryAllocator * gst_gl_memory_allocator_get_default (GstGLContext *context);
[514/906] add GstGLMemory and allocator implement custom GstMemory for GL textures currently map/unmap returns NULL although it might be favourable to upload/download/cache the image data
2012-07-06 08:22:22 +00:00
G_END_DECLS
#endif /* _GST_GL_MEMORY_H_ */
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