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5f87cc0b65
Intended for use with wrapped contexts that are created shared with gst's
gl contexts in order to manage the internal sharegroup state correctly.
e.g. with caopengllayer (which is used in glimagesink and caopengllayersink
on OS X), we create a CGL context from the gst context and the sharing state
was not being correctly set on either GL context and gst_gl_context_is_shared()
was always returning FALSE.
With 11fb4fff80 only flushing with multiple
shared contexts, the required flush was not occuring causing screen
corruption or stuttering.
Note: this didn't affect GST_GL_API=opengl pipelines
https://bugzilla.gnome.org/show_bug.cgi?id=762620
165 lines
6.6 KiB
C
165 lines
6.6 KiB
C
/*
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* GStreamer
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* Copyright (C) 2012 Matthew Waters <ystreet00@gmail.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_H__
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#define __GST_GL_CONTEXT_H__
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#include <gst/gst.h>
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#include <gst/gl/gl.h>
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G_BEGIN_DECLS
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#define GST_GL_TYPE_CONTEXT (gst_gl_context_get_type())
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#define GST_GL_CONTEXT(o) (G_TYPE_CHECK_INSTANCE_CAST((o), GST_GL_TYPE_CONTEXT, GstGLContext))
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#define GST_GL_CONTEXT_CLASS(k) (G_TYPE_CHECK_CLASS_CAST((k), GST_GL_TYPE_CONTEXT, GstGLContextClass))
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#define GST_IS_GL_CONTEXT(o) (G_TYPE_CHECK_INSTANCE_TYPE((o), GST_GL_TYPE_CONTEXT))
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#define GST_IS_GL_CONTEXT_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE((k), GST_GL_TYPE_CONTEXT))
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#define GST_GL_CONTEXT_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS((o), GST_GL_TYPE_CONTEXT, GstGLContextClass))
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GType gst_gl_context_get_type (void);
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#define GST_GL_CONTEXT_ERROR (gst_gl_context_error_quark ())
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GQuark gst_gl_context_error_quark (void);
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/**
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* GstGLContextThreadFunc:
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* @context: a #GstGLContext
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* @data: user data
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*
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* Represents a function to run in the GL thread with @context and @data
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*/
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typedef void (*GstGLContextThreadFunc) (GstGLContext * context, gpointer data);
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#define GST_GL_CONTEXT_TYPE_CGL "gst.gl.context.CGL"
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#define GST_GL_CONTEXT_TYPE_GLX "gst.gl.context.GLX"
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#define GST_GL_CONTEXT_TYPE_EGL "gst.gl.context.EGL"
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#define GST_GL_CONTEXT_TYPE_WGL "gst.gl.context.WGL"
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#define GST_GL_CONTEXT_TYPE_EAGL "gst.gl.context.EAGL"
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typedef enum
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{
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GST_GL_CONTEXT_ERROR_FAILED,
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GST_GL_CONTEXT_ERROR_WRONG_CONFIG,
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GST_GL_CONTEXT_ERROR_WRONG_API,
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GST_GL_CONTEXT_ERROR_OLD_LIBS,
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GST_GL_CONTEXT_ERROR_CREATE_CONTEXT,
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GST_GL_CONTEXT_ERROR_RESOURCE_UNAVAILABLE,
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} GstGLContextError;
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/**
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* GstGLContext:
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*
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* Opaque #GstGLContext object
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*/
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struct _GstGLContext {
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/*< private >*/
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GstObject parent;
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GstGLDisplay *display;
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GstGLWindow *window;
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GstGLFuncs *gl_vtable;
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gpointer _reserved[GST_PADDING];
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GstGLContextPrivate *priv;
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};
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/**
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* GstGLContextClass:
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* @get_gl_context: get the backing platform specific OpenGL context
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* @get_gl_api: get the available OpenGL api's that this context can work with
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* @get_proc_address: get an function pointer to an OpenGL function
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* @activate: call eglMakeCurrent or similar
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* @choose_format: choose a format for the framebuffer
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* @create_context: create the OpenGL context
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* @destroy_context: destroy the OpenGL context
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* @swap_buffers: swap the default framebuffer's front/back buffers
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*/
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struct _GstGLContextClass {
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GstObjectClass parent_class;
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guintptr (*get_current_context) (void);
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guintptr (*get_gl_context) (GstGLContext *context);
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GstGLAPI (*get_gl_api) (GstGLContext *context);
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GstGLPlatform (*get_gl_platform) (GstGLContext *context);
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gpointer (*get_proc_address) (GstGLAPI gl_api, const gchar *name);
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gboolean (*activate) (GstGLContext *context, gboolean activate);
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gboolean (*choose_format) (GstGLContext *context, GError **error);
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gboolean (*create_context) (GstGLContext *context, GstGLAPI gl_api,
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GstGLContext *other_context, GError ** error);
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void (*destroy_context) (GstGLContext *context);
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void (*swap_buffers) (GstGLContext *context);
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gboolean (*check_feature) (GstGLContext *context, const gchar *feature);
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/*< private >*/
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gpointer _reserved[GST_PADDING];
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};
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/* methods */
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GstGLContext * gst_gl_context_new (GstGLDisplay *display);
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GstGLContext * gst_gl_context_new_wrapped (GstGLDisplay *display,
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guintptr handle,
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GstGLPlatform context_type,
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GstGLAPI available_apis);
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gboolean gst_gl_context_activate (GstGLContext *context, gboolean activate);
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GThread * gst_gl_context_get_thread (GstGLContext *context);
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GstGLContext * gst_gl_context_get_current (void);
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GstGLDisplay * gst_gl_context_get_display (GstGLContext *context);
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gpointer gst_gl_context_get_proc_address (GstGLContext *context, const gchar *name);
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GstGLPlatform gst_gl_context_get_gl_platform (GstGLContext *context);
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GstGLAPI gst_gl_context_get_gl_api (GstGLContext *context);
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guintptr gst_gl_context_get_gl_context (GstGLContext *context);
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gboolean gst_gl_context_can_share (GstGLContext * context, GstGLContext *other_context);
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gboolean gst_gl_context_create (GstGLContext *context, GstGLContext *other_context, GError ** error);
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void gst_gl_context_destroy (GstGLContext *context);
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gpointer gst_gl_context_default_get_proc_address (GstGLAPI gl_api, const gchar *name);
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gpointer gst_gl_context_get_proc_address_with_platform (GstGLPlatform, GstGLAPI gl_api, const gchar *name);
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gboolean gst_gl_context_set_window (GstGLContext *context, GstGLWindow *window);
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GstGLWindow * gst_gl_context_get_window (GstGLContext *context);
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void gst_gl_context_get_gl_version (GstGLContext *context, gint *maj, gint *min);
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gboolean gst_gl_context_check_gl_version (GstGLContext * context, GstGLAPI api, gint maj, gint min);
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gboolean gst_gl_context_check_feature (GstGLContext *context, const gchar *feature);
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guintptr gst_gl_context_get_current_gl_context (GstGLPlatform platform);
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GstGLAPI gst_gl_context_get_current_gl_api (GstGLPlatform platform, guint *major, guint *minor);
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gboolean gst_gl_context_is_shared (GstGLContext * context);
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void gst_gl_context_set_shared_with (GstGLContext * context, GstGLContext * share);
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gboolean gst_gl_context_fill_info (GstGLContext * context, GError ** error);
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/* FIXME: remove */
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void gst_gl_context_thread_add (GstGLContext * context,
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GstGLContextThreadFunc func, gpointer data);
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GST_DEBUG_CATEGORY_EXTERN (gst_gl_context_debug);
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G_END_DECLS
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#endif /* __GST_GL_CONTEXT_H__ */
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