Added DirectFB GLUT implementation.

1 files changed, 258 insertions, 0 deletions

diff --git a/src/glut/directfb/state.c b/src/glut/directfb/state.c
new file mode 100644
index 0000000000..c6800ffecd
--- /dev/null
+++ b/src/glut/directfb/state.c
@@ -0,0 +1,258 @@
+/*
+ * Copyright (C) 2006 Claudio Ciccani <klan@users.sf.net>
+ *
+ * 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 <stdio.h>
+#include <stdlib.h>
+#include <sys/time.h>
+
+#include "GL/glu.h"
+
+#include "internal.h"
+
+
+int GLUTAPIENTRY 
+glutGet( GLenum type )
+{   
+     switch (type) {
+          case GLUT_WINDOW_X:
+               if (g_current && g_current->window) {
+                    int x;
+                    g_current->window->GetPosition( g_current->window, &x, 0 );
+                    return x;
+               }
+               break;
+          case GLUT_WINDOW_Y:
+               if (g_current && g_current->window) {
+                    int y;
+                    g_current->window->GetPosition( g_current->window, 0, &y );
+                    return y;
+               }
+               break;
+               
+          case GLUT_WINDOW_WIDTH:
+               if (g_current) {
+                    int w;
+                    g_current->surface->GetSize( g_current->surface, &w, 0 );
+                    return w;
+               }
+               break;
+          case GLUT_WINDOW_HEIGHT:
+               if (g_current) {
+                    int h;
+                    g_current->surface->GetSize( g_current->surface, 0, &h );
+                    return h;
+               }
+               break;
+               
+          case GLUT_WINDOW_BUFFER_SIZE:
+               if (g_current) {
+                    DFBGLAttributes a;
+                    g_current->gl->GetAttributes( g_current->gl, &a );
+                    return a.buffer_size;
+               }
+               break;             
+          case GLUT_WINDOW_STENCIL_SIZE:
+               if (g_current) {
+                    DFBGLAttributes a;
+                    g_current->gl->GetAttributes( g_current->gl, &a );
+                    return a.stencil_size;
+               }
+               break;              
+          case GLUT_WINDOW_DEPTH_SIZE:
+               if (g_current) {
+                    DFBGLAttributes a;
+                    g_current->gl->GetAttributes( g_current->gl, &a );
+                    return a.depth_size;
+               }
+               break;
+          case GLUT_WINDOW_RED_SIZE:
+               if (g_current) {
+                    DFBGLAttributes a;
+                    g_current->gl->GetAttributes( g_current->gl, &a );
+                    return a.red_size;
+               }
+               break;
+          case GLUT_WINDOW_GREEN_SIZE:
+               if (g_current) {
+                    DFBGLAttributes a;
+                    g_current->gl->GetAttributes( g_current->gl, &a );
+                    return a.green_size;
+               }
+               break;
+          case GLUT_WINDOW_BLUE_SIZE:
+               if (g_current) {
+                    DFBGLAttributes a;
+                    g_current->gl->GetAttributes( g_current->gl, &a );
+                    return a.blue_size;
+               }
+               break;
+          case GLUT_WINDOW_ALPHA_SIZE:
+               if (g_current) {
+                    DFBGLAttributes a;
+                    g_current->gl->GetAttributes( g_current->gl, &a );
+                    return a.alpha_size;
+               }
+               break;
+          case GLUT_WINDOW_ACCUM_RED_SIZE:
+               if (g_current) {
+                    DFBGLAttributes a;
+                    g_current->gl->GetAttributes( g_current->gl, &a );
+                    return a.accum_red_size;
+               }
+               break;
+          case GLUT_WINDOW_ACCUM_GREEN_SIZE:
+               if (g_current) {
+                    DFBGLAttributes a;
+                    g_current->gl->GetAttributes( g_current->gl, &a );
+                    return a.accum_green_size;
+               }
+               break;
+          case GLUT_WINDOW_ACCUM_BLUE_SIZE:
+               if (g_current) {
+                    DFBGLAttributes a;
+                    g_current->gl->GetAttributes( g_current->gl, &a );
+                    return a.accum_blue_size;
+               }
+               break;
+          case GLUT_WINDOW_ACCUM_ALPHA_SIZE:
+               if (g_current) {
+                    DFBGLAttributes a;
+                    g_current->gl->GetAttributes( g_current->gl, &a );
+                    return a.accum_alpha_size;
+               }
+               break;
+          case GLUT_WINDOW_DOUBLEBUFFER:
+               if (g_current) {
+                    DFBGLAttributes a;
+                    g_current->gl->GetAttributes( g_current->gl, &a );
+                    return a.double_buffer;
+               }
+               break;                    
+          
+          case GLUT_WINDOW_RGBA:
+               return 1;
+          
+          case GLUT_WINDOW_CURSOR:
+               if (g_current)
+                    return g_current->cursor;
+               break;
+               
+          case GLUT_SCREEN_WIDTH:
+               if (primary) {
+                    DFBDisplayLayerConfig c;
+                    primary->GetConfiguration( primary, &c );
+                    return c.width;
+               }
+               break;
+          case GLUT_SCREEN_HEIGHT:
+               if (primary) {
+                    DFBDisplayLayerConfig c;
+                    primary->GetConfiguration( primary, &c );
+                    return c.height;
+               }
+               break;
+               
+          case GLUT_INIT_DISPLAY_MODE:
+               return g_display_mode;
+          case GLUT_INIT_WINDOW_X:
+               return g_xpos;
+          case GLUT_INIT_WINDOW_Y:
+               return g_ypos;
+          case GLUT_INIT_WINDOW_WIDTH:
+               return g_width;
+          case GLUT_INIT_WINDOW_HEIGHT:
+               return g_height;
+
+          case GLUT_ELAPSED_TIME:
+               {
+                    static long long start = -1;
+                    struct timeval   t;
+               
+                    gettimeofday( &t, NULL );
+                    if (start == -1) {
+                         start = t.tv_sec * 1000ll + t.tv_usec / 1000ll;
+                         return 0;
+                    }
+                    return (t.tv_sec * 1000ll + t.tv_usec / 1000ll - start);
+               }
+               break;
+               
+          default:
+               break;
+     }
+     
+     return 0;
+}
+
+
+int GLUTAPIENTRY
+glutLayerGet( GLenum type )
+{
+     return 0;
+}
+
+int GLUTAPIENTRY 
+glutDeviceGet( GLenum type )
+{
+     switch (type) {
+          case GLUT_HAS_KEYBOARD:
+               return (keyboard != NULL);
+          case GLUT_HAS_MOUSE:
+               return (mouse != NULL);
+          case GLUT_NUM_MOUSE_BUTTONS:
+               if (mouse) {
+                    DFBInputDeviceDescription dsc;
+                    mouse->GetDescription( mouse, &dsc );
+                    return dsc.max_button+1;
+               }
+               break;
+          case GLUT_HAS_JOYSTICK:
+               return (g_game && joystick); /* only available in game mode */
+          case GLUT_JOYSTICK_BUTTONS:
+               if (joystick) {
+                    DFBInputDeviceDescription dsc;
+                    joystick->GetDescription( joystick, &dsc );
+                    return dsc.max_button+1;
+               }
+               break;
+          case GLUT_JOYSTICK_AXES:
+               if (joystick) {
+                    DFBInputDeviceDescription dsc;
+                    joystick->GetDescription( joystick, &dsc );
+                    return dsc.max_axis+1;
+               }
+               break;                    
+          default:
+               break;
+     }
+     
+     return 0;
+}
+
+
+void GLUTAPIENTRY
+glutReportErrors( void )
+{
+     GLenum error;
+     
+     while ((error = glGetError()) != GL_NO_ERROR)
+          __glutWarning( "**OpenGL Error** %s", gluErrorString( error ) );
+}
+
+