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https://gitlab.freedesktop.org/gstreamer/gstreamer.git
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7066c849e4
New API: - gst_gl_context_get_config() - gst_gl_context_request_config() A GL context configuration is a GstStructure that has some well-known names for common values that can also be extended in platform-specific ways if necessary. Wrapped OpenGL contexts may be able to retrieve the GL context configuration depending on the platform. If that information is available, GstGLContext will attempt to create an context that matches the shared OpenGL context config unless gst_gl_context_request_config() has been called. A new environment variable 'GST_GL_CONFIG' will be read to influence the configuration chosen. The environment variable will only be used as a fallback if gst_gl_context_request_config() has not been called. Part-of: <https://gitlab.freedesktop.org/gstreamer/gst-plugins-base/-/merge_requests/809>
160 lines
5.8 KiB
C
160 lines
5.8 KiB
C
/*
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* GStreamer
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* Copyright (C) 2020 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_CONTEXT_CONFIG_H__
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#define __GST_GL_CONTEXT_CONFIG_H__
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#include <gst/gst.h>
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#include <gst/gl/gstgl_fwd.h>
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G_BEGIN_DECLS
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/**
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* GST_GL_CONFIG_STRUCTURE_NAME:
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*
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* The canonical name of a #GstStructure that contains a configuration for a
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* #GstGLContext.
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*
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* Since: 1.20
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*/
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#define GST_GL_CONFIG_STRUCTURE_NAME "gst-gl-context-config"
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/**
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* GST_GL_CONFIG_ATTRIB_NAME:
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*
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* Get a reference to the variable name of a particular configuration field.
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*
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* e.g. for `CONFIG_ID`: `GST_GL_CONFIG_ATTRIB_NAME (CONFIG_ID)`
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*
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* Since: 1.20
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*/
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#define GST_GL_CONFIG_ATTRIB_NAME(UPPER_NAME) \
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G_PASTE(G_PASTE(GST_GL_CONFIG_ATTRIB_,UPPER_NAME),_NAME)
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/**
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* GST_GL_CONFIG_ATTRIB_GTYPE:
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*
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* Get a reference to the #GType of a particular configuration field.
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*
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* e.g. for `CONFIG_ID`: `GST_GL_CONFIG_ATTRIB_GTYPE (CONFIG_ID)`
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*
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* Since: 1.20
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*/
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#define GST_GL_CONFIG_ATTRIB_GTYPE(UPPER_NAME) \
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G_PASTE(G_PASTE(GST_GL_CONFIG_ATTRIB_,UPPER_NAME),_GTYPE)
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GST_GL_API const char * GST_GL_CONFIG_ATTRIB_CONFIG_ID_NAME;
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#define GST_GL_CONFIG_ATTRIB_CONFIG_ID_GTYPE G_TYPE_UINT
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GST_GL_API const char * GST_GL_CONFIG_ATTRIB_PLATFORM_NAME;
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#define GST_GL_CONFIG_ATTRIB_PLATFORM_GTYPE GST_TYPE_GL_PLATFORM
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GST_GL_API const char * GST_GL_CONFIG_ATTRIB_CAVEAT_NAME;
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#define GST_GL_CONFIG_ATTRIB_CAVEAT_GTYPE GST_TYPE_GL_CONFIG_CAVEAT
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GST_GL_API const char * GST_GL_CONFIG_ATTRIB_SURFACE_TYPE_NAME;
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#define GST_GL_CONFIG_ATTRIB_SURFACE_TYPE_GTYPE GST_TYPE_GL_CONFIG_SURFACE_TYPE
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GST_GL_API const char * GST_GL_CONFIG_ATTRIB_CONFORMANT_API_NAME;
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#define GST_GL_CONFIG_ATTRIB_CONFORMANT_API_GTYPE GST_TYPE_GL_API
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GST_GL_API const char * GST_GL_CONFIG_ATTRIB_RENDERABLE_API_NAME;
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#define GST_GL_CONFIG_ATTRIB_RENDERABLE_API_GTYPE GST_TYPE_GL_API
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GST_GL_API const char * GST_GL_CONFIG_ATTRIB_RED_SIZE_NAME;
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#define GST_GL_CONFIG_ATTRIB_RED_SIZE_GTYPE G_TYPE_INT
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GST_GL_API const char * GST_GL_CONFIG_ATTRIB_GREEN_SIZE_NAME;
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#define GST_GL_CONFIG_ATTRIB_GREEN_SIZE_GTYPE G_TYPE_INT
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GST_GL_API const char * GST_GL_CONFIG_ATTRIB_BLUE_SIZE_NAME;
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#define GST_GL_CONFIG_ATTRIB_BLUE_SIZE_GTYPE G_TYPE_INT
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GST_GL_API const char * GST_GL_CONFIG_ATTRIB_ALPHA_SIZE_NAME;
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#define GST_GL_CONFIG_ATTRIB_ALPHA_SIZE_GTYPE G_TYPE_INT
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GST_GL_API const char * GST_GL_CONFIG_ATTRIB_LUMINANCE_SIZE_NAME;
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#define GST_GL_CONFIG_ATTRIB_LUMINANCE_SIZE_GTYPE G_TYPE_INT
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GST_GL_API const char * GST_GL_CONFIG_ATTRIB_DEPTH_SIZE_NAME;
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#define GST_GL_CONFIG_ATTRIB_DEPTH_SIZE_GTYPE G_TYPE_INT
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GST_GL_API const char * GST_GL_CONFIG_ATTRIB_STENCIL_SIZE_NAME;
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#define GST_GL_CONFIG_ATTRIB_STENCIL_SIZE_GTYPE G_TYPE_INT
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GST_GL_API const char * GST_GL_CONFIG_ATTRIB_MAX_PBUFFER_WIDTH_NAME;
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#define GST_GL_CONFIG_ATTRIB_MAX_PBUFFER_WIDTH_GTYPE G_TYPE_INT
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GST_GL_API const char * GST_GL_CONFIG_ATTRIB_MAX_PBUFFER_HEIGHT_NAME;
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#define GST_GL_CONFIG_ATTRIB_MAX_PBUFFER_HEIGHT_GTYPE G_TYPE_INT
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GST_GL_API const char * GST_GL_CONFIG_ATTRIB_MAX_PBUFFER_PIXELS_NAME;
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#define GST_GL_CONFIG_ATTRIB_MAX_PBUFFER_PIXELS_GTYPE G_TYPE_INT
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GST_GL_API const char * GST_GL_CONFIG_ATTRIB_SAMPLE_BUFFERS_NAME;
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#define GST_GL_CONFIG_ATTRIB_SAMPLE_BUFFERS_GTYPE G_TYPE_INT
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GST_GL_API const char * GST_GL_CONFIG_ATTRIB_SAMPLES_NAME;
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#define GST_GL_CONFIG_ATTRIB_SAMPLES_GTYPE G_TYPE_INT
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GST_GL_API const char * GST_GL_CONFIG_ATTRIB_NATIVE_RENDERABLE_NAME;
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#define GST_GL_CONFIG_ATTRIB_NATIVE_RENDERABLE_GTYPE G_TYPE_BOOLEAN
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GST_GL_API const char * GST_GL_CONFIG_ATTRIB_NATIVE_VISUAL_ID_NAME;
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#define GST_GL_CONFIG_ATTRIB_NATIVE_VISUAL_ID_GTYPE G_TYPE_UINT
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GST_GL_API const char * GST_GL_CONFIG_ATTRIB_LEVEL_NAME;
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#define GST_GL_CONFIG_ATTRIB_LEVEL_GTYPE G_TYPE_INT
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GST_GL_API const char * GST_GL_CONFIG_ATTRIB_MIN_SWAP_INTERVAL_NAME;
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#define GST_GL_CONFIG_ATTRIB_MIN_SWAP_INTERVAL_GTYPE G_TYPE_INT
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GST_GL_API const char * GST_GL_CONFIG_ATTRIB_MAX_SWAP_INTERVAL_NAME;
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#define GST_GL_CONFIG_ATTRIB_MAX_SWAP_INTERVAL_GTYPE G_TYPE_INT
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/**
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* GST_GL_CONFIG_STRUCTURE_SET_ARGS:
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*
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* Since: 1.20
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*/
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#define GST_GL_CONFIG_STRUCTURE_SET_ARGS(def_name,ctype,val) \
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GST_GL_CONFIG_ATTRIB_NAME(def_name), \
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GST_GL_CONFIG_ATTRIB_GTYPE(def_name), \
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(ctype) (val)
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/**
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* GstGLConfigCaveat:
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* @GST_GL_CONFIG_CAVEAT_NONE: none
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* @GST_GL_CONFIG_CAVEAT_SLOW: slow
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* @GST_GL_CONFIG_CAVEAT_NON_CONFORMANT: non-conformant
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*
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* Since: 1.20
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*/
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typedef enum
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{
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GST_GL_CONFIG_CAVEAT_NONE,
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GST_GL_CONFIG_CAVEAT_SLOW,
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GST_GL_CONFIG_CAVEAT_NON_CONFORMANT,
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} GstGLConfigCaveat;
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GST_GL_API
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const gchar * gst_gl_config_caveat_to_string (GstGLConfigCaveat caveat);
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/**
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* GstGLConfigSurfaceType:
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* @GST_GL_CONFIG_SURFACE_TYPE_NONE: none
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* @GST_GL_CONFIG_SURFACE_TYPE_WINDOW: window
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* @GST_GL_CONFIG_SURFACE_TYPE_PBUFFER: pbuffer
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* @GST_GL_CONFIG_SURFACE_TYPE_PIXMAP: pixmap
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*
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* Since: 1.20
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*/
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typedef enum
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{
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GST_GL_CONFIG_SURFACE_TYPE_NONE = 0,
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GST_GL_CONFIG_SURFACE_TYPE_WINDOW = (1 << 0),
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GST_GL_CONFIG_SURFACE_TYPE_PBUFFER = (1 << 1),
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GST_GL_CONFIG_SURFACE_TYPE_PIXMAP = (1 << 2),
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} GstGLConfigSurfaceType;
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GST_GL_API
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const gchar * gst_gl_config_surface_type_to_string (GstGLConfigSurfaceType surface_type);
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G_END_DECLS
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#endif /* __GST_GL_CONTEXT_CONFIG_H__ */
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