mutter/clutter/cogl/gl/cogl.c

/*
 * Clutter COGL
 *
 * A basic GL/GLES Abstraction/Utility Layer
 *
 * Authored By Matthew Allum  <mallum@openedhand.com>
 *
 * Copyright (C) 2007 OpenedHand
 *
 * 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 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 "cogl.h"
#include <GL/gl.h>

CoglFuncPtr
cogl_get_proc_address (const gchar* name)
{
  return NULL;
}

gboolean 
cogl_check_extension (const gchar *name, const gchar *ext)
{
  return FALSE;
}

void
cogl_paint_init (ClutterColor *color)
{
  glClearColor (((float) color->red / 0xff * 1.0),
	        ((float) color->green / 0xff * 1.0),
	        ((float) color->blue / 0xff * 1.0),
	        0.0);

  glClear (GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
  glDisable (GL_LIGHTING); 
  glDisable (GL_DEPTH_TEST);
}

/* FIXME: inline most of these  */
void
cogl_push_matrix (void)
{
  glPushMatrix();
}

void
cogl_pop_matrix (void)
{
  glPopMatrix();
}

void
cogl_scaled (ClutterFixed x, ClutterFixed y)
{
  glScaled (CLUTTER_FIXED_TO_DOUBLE (x),
	    CLUTTER_FIXED_TO_DOUBLE (y),
	    1.0);
}

void
cogl_translatex (ClutterFixed x, ClutterFixed y, ClutterFixed z)
{
  glTranslated (CLUTTER_FIXED_TO_DOUBLE (x),
		CLUTTER_FIXED_TO_DOUBLE (y),
		CLUTTER_FIXED_TO_DOUBLE (z));
}

void
cogl_translate (gint x, gint y, gint z)
{
  glTranslatef ((float)x, (float)y, (float)z);
}

void
cogl_rotatex (ClutterFixed angle, gint x, gint y, gint z)
{
  glRotated (CLUTTER_FIXED_TO_DOUBLE (angle),
	     CLUTTER_FIXED_TO_DOUBLE (x),
	     CLUTTER_FIXED_TO_DOUBLE (y),
	     CLUTTER_FIXED_TO_DOUBLE (z));
}

void
cogl_rotate (gint angle, gint x, gint y, gint z)
{
  glRotatef ((float)angle, (float)x, (float)y, (float)z);
}