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221 lines
8 KiB
C
221 lines
8 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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GST_EXPORT
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GType gst_gl_context_get_type (void);
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#define GST_TYPE_GL_CONTEXT (gst_gl_context_get_type())
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/* FIXME: remove this when moving to -base */
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#ifndef GST_DISABLE_DEPRECATED
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#define GST_GL_TYPE_CONTEXT GST_TYPE_GL_CONTEXT
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#endif
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#define GST_GL_CONTEXT(o) (G_TYPE_CHECK_INSTANCE_CAST((o), GST_TYPE_GL_CONTEXT, GstGLContext))
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#define GST_GL_CONTEXT_CLASS(k) (G_TYPE_CHECK_CLASS_CAST((k), GST_TYPE_GL_CONTEXT, GstGLContextClass))
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#define GST_IS_GL_CONTEXT(o) (G_TYPE_CHECK_INSTANCE_TYPE((o), GST_TYPE_GL_CONTEXT))
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#define GST_IS_GL_CONTEXT_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE((k), GST_TYPE_GL_CONTEXT))
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#define GST_GL_CONTEXT_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS((o), GST_TYPE_GL_CONTEXT, GstGLContextClass))
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GST_EXPORT
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GQuark gst_gl_context_error_quark (void);
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/**
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* GST_GL_CONTEXT_ERROR:
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*
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* Error domain for GStreamer's GL context module. Errors in this domain will
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* be from the #GstGLContextError enumeration
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*/
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#define GST_GL_CONTEXT_ERROR (gst_gl_context_error_quark ())
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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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/**
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* GstGLContextError:
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* @GST_GL_CONTEXT_ERROR_FAILED: Failed for an unspecified reason
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* @GST_GL_CONTEXT_ERROR_WRONG_CONFIG: The configuration requested is not correct
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* @GST_GL_CONTEXT_ERROR_WRONG_API: The OpenGL API requested is not correct
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* @GST_GL_CONTEXT_ERROR_OLD_LIBS: The OpenGL libraries are too old
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* @GST_GL_CONTEXT_ERROR_CREATE_CONTEXT: glXCreateContext (or similar) failed
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* @GST_GL_CONTEXT_ERROR_RESOURCE_UNAVAILABLE: A resource is not available
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*
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* OpenGL context errors.
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*/
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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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* @gl_vtable: a list of OpenGL function pointers
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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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/*< public >*/
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GstGLFuncs *gl_vtable;
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/*< private >*/
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GstGLContextPrivate *priv;
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gpointer _reserved[GST_PADDING];
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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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void (*get_gl_platform_version) (GstGLContext *context, gint *major, gint *minor);
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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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GST_EXPORT
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GstGLContext * gst_gl_context_new (GstGLDisplay *display);
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GST_EXPORT
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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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GST_EXPORT
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gboolean gst_gl_context_activate (GstGLContext *context, gboolean activate);
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GST_EXPORT
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GThread * gst_gl_context_get_thread (GstGLContext *context);
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GST_EXPORT
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GstGLContext * gst_gl_context_get_current (void);
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GST_EXPORT
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GstGLDisplay * gst_gl_context_get_display (GstGLContext *context);
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GST_EXPORT
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gpointer gst_gl_context_get_proc_address (GstGLContext *context, const gchar *name);
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GST_EXPORT
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GstGLPlatform gst_gl_context_get_gl_platform (GstGLContext *context);
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GST_EXPORT
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GstGLAPI gst_gl_context_get_gl_api (GstGLContext *context);
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GST_EXPORT
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guintptr gst_gl_context_get_gl_context (GstGLContext *context);
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GST_EXPORT
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gboolean gst_gl_context_can_share (GstGLContext * context, GstGLContext *other_context);
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GST_EXPORT
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void gst_gl_context_swap_buffers (GstGLContext * context);
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GST_EXPORT
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gboolean gst_gl_context_create (GstGLContext *context, GstGLContext *other_context, GError ** error);
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GST_EXPORT
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void gst_gl_context_destroy (GstGLContext *context);
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GST_EXPORT
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gpointer gst_gl_context_default_get_proc_address (GstGLAPI gl_api, const gchar *name);
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GST_EXPORT
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gpointer gst_gl_context_get_proc_address_with_platform (GstGLPlatform context_type, GstGLAPI gl_api, const gchar *name);
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GST_EXPORT
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gboolean gst_gl_context_set_window (GstGLContext *context, GstGLWindow *window);
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GST_EXPORT
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GstGLWindow * gst_gl_context_get_window (GstGLContext *context);
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GST_EXPORT
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void gst_gl_context_get_gl_version (GstGLContext *context, gint *maj, gint *min);
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GST_EXPORT
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gboolean gst_gl_context_check_gl_version (GstGLContext * context, GstGLAPI api, gint maj, gint min);
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GST_EXPORT
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gboolean gst_gl_context_check_feature (GstGLContext *context, const gchar *feature);
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GST_EXPORT
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void gst_gl_context_get_gl_platform_version (GstGLContext * context, gint * major, gint * minor);
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GST_EXPORT
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guintptr gst_gl_context_get_current_gl_context (GstGLPlatform context_type);
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GST_EXPORT
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GstGLAPI gst_gl_context_get_current_gl_api (GstGLPlatform platform, guint *major, guint *minor);
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GST_EXPORT
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gboolean gst_gl_context_is_shared (GstGLContext * context);
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GST_EXPORT
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void gst_gl_context_set_shared_with (GstGLContext * context, GstGLContext * share);
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GST_EXPORT
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gboolean gst_gl_context_fill_info (GstGLContext * context, GError ** error);
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/* FIXME: remove */
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GST_EXPORT
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void gst_gl_context_thread_add (GstGLContext * context,
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GstGLContextThreadFunc func, gpointer data);
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G_END_DECLS
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#endif /* __GST_GL_CONTEXT_H__ */
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