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/*
* GStreamer
* Copyright (C) 2012 Matthew Waters <ystreet00@gmail.com>
*
* 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
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#ifndef __GST_GL_CONTEXT_H__
#define __GST_GL_CONTEXT_H__
#include <gst/gst.h>
#include <gst/gl/gl.h>
G_BEGIN_DECLS
#define GST_GL_TYPE_CONTEXT (gst_gl_context_get_type())
#define GST_GL_CONTEXT(o) (G_TYPE_CHECK_INSTANCE_CAST((o), GST_GL_TYPE_CONTEXT, GstGLContext))
#define GST_GL_CONTEXT_CLASS(k) (G_TYPE_CHECK_CLASS((k), GST_GL_TYPE_CONTEXT, GstGLContextClass))
#define GST_GL_IS_CONTEXT(o) (G_TYPE_CHECK_INSTANCE_TYPE((o), GST_GL_TYPE_CONTEXT))
#define GST_GL_IS_CONTEXT_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE((k), GST_GL_TYPE_CONTEXT))
#define GST_GL_CONTEXT_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS((o), GST_GL_TYPE_CONTEXT, GstGLContextClass))
GType gst_gl_context_get_type (void);
#define GST_GL_CONTEXT_ERROR (gst_gl_context_error_quark ())
GQuark gst_gl_context_error_quark (void);
/**
* GstGLContextThreadFunc:
* @context: a #GstGLContext
* @data: user data
*
* Represents a function to run in the GL thread with @context and @data
*/
typedef void (*GstGLContextThreadFunc) (GstGLContext * context, gpointer data);
#define GST_GL_CONTEXT_TYPE_CGL "gst.gl.context.CGL"
#define GST_GL_CONTEXT_TYPE_GLX "gst.gl.context.GLX"
#define GST_GL_CONTEXT_TYPE_EGL "gst.gl.context.EGL"
#define GST_GL_CONTEXT_TYPE_WGL "gst.gl.context.WGL"
#define GST_GL_CONTEXT_TYPE_EAGL "gst.gl.context.EAGL"
typedef enum
{
GST_GL_CONTEXT_ERROR_FAILED,
GST_GL_CONTEXT_ERROR_WRONG_CONFIG,
GST_GL_CONTEXT_ERROR_WRONG_API,
GST_GL_CONTEXT_ERROR_OLD_LIBS,
GST_GL_CONTEXT_ERROR_CREATE_CONTEXT,
GST_GL_CONTEXT_ERROR_RESOURCE_UNAVAILABLE,
} GstGLContextError;
/**
* GstGLContext:
*
* Opaque #GstGLContext object
*/
struct _GstGLContext {
/*< private >*/
GstObject parent;
GstGLWindow *window;
GstGLFuncs *gl_vtable;
gpointer _reserved[GST_PADDING];
GstGLContextPrivate *priv;
};
/**
* GstGLContextClass:
* @get_gl_context: get the backing platform specific OpenGL context
* @get_gl_api: get the available OpenGL api's that this context can work with
* @get_proc_address: get an function pointer to an OpenGL function
* @activate: call eglMakeCurrent or similar
* @choose_format: choose a format for the framebuffer
* @create_context: create the OpenGL context
* @destroy_context: destroy the OpenGL context
* @swap_buffers: swap the default framebuffer's front/back buffers
*/
struct _GstGLContextClass {
GstObjectClass parent_class;
guintptr (*get_gl_context) (GstGLContext *context);
GstGLAPI (*get_gl_api) (GstGLContext *context);
GstGLPlatform (*get_gl_platform) (GstGLContext *context);
gpointer (*get_proc_address) (GstGLContext *context, const gchar *name);
gboolean (*activate) (GstGLContext *context, gboolean activate);
gboolean (*choose_format) (GstGLContext *context, GError **error);
gboolean (*create_context) (GstGLContext *context, GstGLAPI gl_api,
GstGLContext *other_context, GError ** error);
void (*destroy_context) (GstGLContext *context);
void (*swap_buffers) (GstGLContext *context);
gboolean (*check_feature) (GstGLContext *context, const gchar *feature);
/*< private >*/
gpointer _reserved[GST_PADDING];
};
/* methods */
GstGLContext * gst_gl_context_new (GstGLDisplay *display);
GstGLContext * gst_gl_context_new_wrapped (GstGLDisplay *display,
guintptr handle,
GstGLPlatform context_type,
GstGLAPI available_apis);
gboolean gst_gl_context_activate (GstGLContext *context, gboolean activate);
GstGLDisplay * gst_gl_context_get_display (GstGLContext *context);
gpointer gst_gl_context_get_proc_address (GstGLContext *context, const gchar *name);
GstGLPlatform gst_gl_context_get_gl_platform (GstGLContext *context);
GstGLAPI gst_gl_context_get_gl_api (GstGLContext *context);
guintptr gst_gl_context_get_gl_context (GstGLContext *context);
gboolean gst_gl_context_create (GstGLContext *context, GstGLContext *other_context, GError ** error);
gpointer gst_gl_context_default_get_proc_address (GstGLContext *context, const gchar *name);
gboolean gst_gl_context_set_window (GstGLContext *context, GstGLWindow *window);
GstGLWindow * gst_gl_context_get_window (GstGLContext *context);
void gst_gl_context_get_gl_version (GstGLContext *context, gint *maj, gint *min);
gboolean gst_gl_context_check_gl_version (GstGLContext * context, GstGLAPI api, gint maj, gint min);
gboolean gst_gl_context_check_feature (GstGLContext *context, const gchar *feature);
/* FIXME: remove */
void gst_gl_context_thread_add (GstGLContext * context,
GstGLContextThreadFunc func, gpointer data);
G_END_DECLS
#endif /* __GST_GL_CONTEXT_H__ */
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