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/* GdkGLExt - OpenGL Extension to GDK
* Copyright (C) 2002-2004 Naofumi Yasufuku
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#include <gdk/gdkdrawable.h>
#include "gdkglprivate.h"
#include "gdkglcontext.h"
#include "gdkgldrawable.h"
GType
gdk_gl_drawable_get_type (void)
{
static GType type = 0;
if (!type)
{
static const GTypeInfo type_info = {
sizeof (GdkGLDrawableClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL
};
type = g_type_register_static (G_TYPE_INTERFACE,
"GdkGLDrawable",
&type_info, 0);
}
return type;
}
/**
* gdk_gl_drawable_make_current:
* @gldrawable: a #GdkGLDrawable.
* @glcontext: a #GdkGLContext.
*
* Attach an OpenGL rendering context to a @gldrawable.
*
* Return value: TRUE if it is successful, FALSE otherwise.
**/
gboolean
gdk_gl_drawable_make_current (GdkGLDrawable *gldrawable,
GdkGLContext *glcontext)
{
g_return_val_if_fail (GDK_IS_GL_DRAWABLE (gldrawable), FALSE);
return GDK_GL_DRAWABLE_GET_CLASS (gldrawable)->make_context_current (gldrawable,
gldrawable,
glcontext);
}
/**
* gdk_gl_drawable_is_double_buffered:
* @gldrawable: a #GdkGLDrawable.
*
* Returns whether the @gldrawable supports the double-buffered visual.
*
* Return value: TRUE if the double-buffered visual is supported,
* FALSE otherwise.
**/
gboolean
gdk_gl_drawable_is_double_buffered (GdkGLDrawable *gldrawable)
{
g_return_val_if_fail (GDK_IS_GL_DRAWABLE (gldrawable), FALSE);
return GDK_GL_DRAWABLE_GET_CLASS (gldrawable)->is_double_buffered (gldrawable);
}
/**
* gdk_gl_drawable_swap_buffers:
* @gldrawable: a #GdkGLDrawable.
*
* Exchange front and back buffers.
*
**/
void
gdk_gl_drawable_swap_buffers (GdkGLDrawable *gldrawable)
{
g_return_if_fail (GDK_IS_GL_DRAWABLE (gldrawable));
GDK_GL_DRAWABLE_GET_CLASS (gldrawable)->swap_buffers (gldrawable);
}
/**
* gdk_gl_drawable_wait_gl:
* @gldrawable: a #GdkGLDrawable.
*
* Complete OpenGL execution prior to subsequent GDK drawing calls.
*
**/
void
gdk_gl_drawable_wait_gl (GdkGLDrawable *gldrawable)
{
g_return_if_fail (GDK_IS_GL_DRAWABLE (gldrawable));
GDK_GL_DRAWABLE_GET_CLASS (gldrawable)->wait_gl (gldrawable);
}
/**
* gdk_gl_drawable_wait_gdk:
* @gldrawable: a #GdkGLDrawable.
*
* Complete GDK drawing execution prior to subsequent OpenGL calls.
*
**/
void
gdk_gl_drawable_wait_gdk (GdkGLDrawable *gldrawable)
{
g_return_if_fail (GDK_IS_GL_DRAWABLE (gldrawable));
GDK_GL_DRAWABLE_GET_CLASS (gldrawable)->wait_gdk (gldrawable);
}
/**
* gdk_gl_drawable_gl_begin:
* @gldrawable: a #GdkGLDrawable.
* @glcontext: a #GdkGLContext.
*
* Delimits the begining of the OpenGL execution.
*
* Return value: TRUE if it is successful, FALSE otherwise.
**/
gboolean
gdk_gl_drawable_gl_begin (GdkGLDrawable *gldrawable,
GdkGLContext *glcontext)
{
g_return_val_if_fail (GDK_IS_GL_DRAWABLE (gldrawable), FALSE);
return GDK_GL_DRAWABLE_GET_CLASS (gldrawable)->gl_begin (gldrawable,
gldrawable,
glcontext);
}
/**
* gdk_gl_drawable_gl_end:
* @gldrawable: a #GdkGLDrawable.
*
* Delimits the end of the OpenGL execution.
*
**/
void
gdk_gl_drawable_gl_end (GdkGLDrawable *gldrawable)
{
g_return_if_fail (GDK_IS_GL_DRAWABLE (gldrawable));
GDK_GL_DRAWABLE_GET_CLASS (gldrawable)->gl_end (gldrawable);
}
/**
* gdk_gl_drawable_get_gl_config:
* @gldrawable: a #GdkGLDrawable.
*
* Gets #GdkGLConfig with which the @gldrawable is configured.
*
* Return value: the #GdkGLConfig.
**/
GdkGLConfig *
gdk_gl_drawable_get_gl_config (GdkGLDrawable *gldrawable)
{
g_return_val_if_fail (GDK_IS_GL_DRAWABLE (gldrawable), NULL);
return GDK_GL_DRAWABLE_GET_CLASS (gldrawable)->get_gl_config (gldrawable);
}
/**
* gdk_gl_drawable_get_size:
* @gldrawable: a #GdkGLDrawable.
* @width: location to store drawable's width, or NULL.
* @height: location to store drawable's height, or NULL.
*
* Fills *width and *height with the size of GL drawable.
* width or height can be NULL if you only want the other one.
*
**/
void
gdk_gl_drawable_get_size (GdkGLDrawable *gldrawable,
gint *width,
gint *height)
{
g_return_if_fail (GDK_IS_GL_DRAWABLE (gldrawable));
GDK_GL_DRAWABLE_GET_CLASS (gldrawable)->get_size (gldrawable, width, height);
}
/**
* gdk_gl_drawable_get_current:
*
* Returns the current #GdkGLDrawable.
*
* Return value: the current #GdkGLDrawable or NULL if there is no current drawable.
**/
GdkGLDrawable *
gdk_gl_drawable_get_current (void)
{
GdkGLContext *glcontext;
GDK_GL_NOTE_FUNC ();
glcontext = gdk_gl_context_get_current ();
if (glcontext == NULL)
return NULL;
return gdk_gl_context_get_gl_drawable (glcontext);
}
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