Added DirectFB GLUT implementation.

1 files changed, 576 insertions, 0 deletions

diff --git a/src/glut/directfb/window.c b/src/glut/directfb/window.c
new file mode 100644
index 0000000000..7907c45e67
--- /dev/null
+++ b/src/glut/directfb/window.c
@@ -0,0 +1,576 @@
+/*
+ * 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 <string.h>
+#include <unistd.h>
+
+#include "internal.h"
+
+
+/*****************************************************************************/
+
+static __GlutWindow *g_stack = NULL;
+
+/*****************************************************************************/
+
+
+__GlutWindow* 
+__glutCreateWindow( GLboolean fullscreen )
+{
+     __GlutWindow *new;
+     DFBResult     ret;
+     static int    curid = 1;
+
+     new = calloc( 1, sizeof(__GlutWindow) );
+     if (!new)
+          __glutFatalError( "out of memory" );
+     
+     new->id = curid++;
+
+     if (fullscreen) {
+          DFBDisplayLayerConfig      config;
+          DFBDisplayLayerConfigFlags fail = 0;
+          
+          config.flags  = DLCONF_WIDTH | DLCONF_HEIGHT |
+                          DLCONF_BUFFERMODE;
+          config.width  = g_width;
+          config.height = g_height;
+          
+          if (g_display_mode & GLUT_DOUBLE)
+               config.buffermode = DLBM_BACKVIDEO;
+          else
+               config.buffermode = DLBM_FRONTONLY;
+               
+          if (g_bpp) {
+               config.flags |= DLCONF_PIXELFORMAT;
+               
+               switch (g_bpp) {
+                    case 8:
+                         config.pixelformat = DSPF_RGB332;
+                         break;
+                    case 15:
+                         config.pixelformat = DSPF_ARGB1555;
+                         break;
+                    case 16:
+                         config.pixelformat = DSPF_RGB16;
+                         break;
+                    case 24:
+                    case 32:
+                         config.pixelformat = DSPF_RGB32;
+                         break;
+                    default:
+                         config.flags &= ~DLCONF_PIXELFORMAT;
+                         break;
+               }
+          }
+               
+          primary->TestConfiguration( primary, &config, &fail );
+          config.flags &= ~fail;
+          primary->SetConfiguration( primary, &config );
+               
+          ret = primary->GetSurface( primary, &new->surface );
+          if (ret) {
+               DirectFBError( "IDirectFBDisplayLayer::GetSurface()", ret );
+               free( new );
+               return NULL;
+          }
+          
+          ret = new->surface->GetGL( new->surface, &new->gl );
+          if (ret) {
+               DirectFBError( "IDirectFBSurface::GetGL()", ret );
+               new->surface->Release( new->surface );
+               free( new );
+               return NULL;
+          }
+          
+          events->Reset( events );
+          if (keyboard)
+               keyboard->AttachEventBuffer( keyboard, events );
+          if (mouse)
+               mouse->AttachEventBuffer( mouse, events );
+          if (joystick)
+               joystick->AttachEventBuffer( joystick, events );
+               
+          new->visible = GL_TRUE;        
+     }
+     else {
+          DFBWindowDescription dsc;
+     
+          dsc.flags  = DWDESC_CAPS | DWDESC_POSX | DWDESC_POSY | 
+                       DWDESC_WIDTH | DWDESC_HEIGHT;
+          dsc.caps   = DWCAPS_NONE;
+          dsc.posx   = g_xpos;
+          dsc.posy   = g_ypos;
+          dsc.width  = g_width;
+          dsc.height = g_height;
+
+          if (g_display_mode & GLUT_DOUBLE)
+               dsc.caps |= DWCAPS_DOUBLEBUFFER;
+          if (g_display_mode & GLUT_ALPHA)
+               dsc.caps |= DWCAPS_ALPHACHANNEL;
+
+          ret = primary->CreateWindow( primary, &dsc, &new->window );
+          if (ret) {
+               DirectFBError( "IDirectFBDisplayLayer::CreateWindow()", ret );
+               free( new );
+               return NULL;
+          }
+
+          new->window->GetID( new->window, &new->wid );
+     
+          ret = new->window->GetSurface( new->window, &new->surface );
+          if (ret) {
+               DirectFBError( "IDirectFBWindow::GetSurface()", ret );
+               new->window->Release( new->window );
+               free( new );
+               return NULL;
+          }
+
+          ret = new->surface->GetGL( new->surface, &new->gl );
+          if (ret) {
+               DirectFBError( "IDirectFBSurface::GetGl()", ret );
+               new->surface->Release( new->surface );
+               new->window->Release( new->window );
+               free( new );
+               return NULL;
+          }
+          
+          new->window->AttachEventBuffer( new->window, events );
+          /* enable only handled events */
+          new->window->EnableEvents( new->window, DWET_KEYDOWN    | DWET_KEYUP    |
+                                                  DWET_BUTTONDOWN | DWET_BUTTONUP |
+                                                  DWET_ENTER      | DWET_LEAVE    |
+                                                  DWET_MOTION     | DWET_SIZE );
+                                                  
+          
+          new->req.flags |= WINDOW_REQUEST_SHOW;
+     }
+
+     new->reshape    = GL_TRUE;
+     new->visibility = GL_TRUE;
+     new->redisplay  = GL_TRUE;
+     
+     if (g_stack) {
+          new->prev = g_stack->prev;
+          g_stack->prev->next = new;
+          g_stack->prev = new;
+     }
+     else {
+          new->prev = new;
+          g_stack = new;
+     }     
+   
+     return new;
+}
+
+
+__GlutWindow*
+__glutFindWindow( DFBWindowID id )
+{
+     __GlutWindow *cur;
+
+     for (cur = g_stack; cur; cur = cur->next) {
+          if (cur->wid == id)
+               return cur;
+     }
+
+     __glutFatalError( "Window %d not found", id );
+     
+     return NULL;
+}
+
+
+void
+__glutSetWindow( __GlutWindow *window )
+{
+     if (g_current) {
+          if (g_current == window)
+               return;
+          g_current->gl->Unlock( g_current->gl );
+     }
+     
+     if (window)     
+          window->gl->Lock( window->gl );
+     g_current = window;
+}
+
+
+void
+__glutHandleWindows( void )
+{
+     __GlutWindow *cur = g_stack;
+     
+     while (cur) {
+          __GlutWindow *next = cur->next;
+          
+          if (cur->window && cur->req.flags) {
+               if (cur == g_current)
+                    cur->gl->Unlock( cur->gl );
+
+               if (cur->req.flags & WINDOW_REQUEST_DESTROY) {
+                    __glutDestroyWindow( cur );
+                    cur = next;
+                    continue;
+               }
+     
+               if (cur->req.flags & WINDOW_REQUEST_POSITION) {
+                    cur->window->MoveTo( cur->window, 
+                                         cur->req.x, cur->req.y );
+               }
+           
+               if (cur->req.flags & WINDOW_REQUEST_RESIZE) {
+                    cur->window->Resize( cur->window,
+                                        cur->req.w, cur->req.h );
+                    cur->reshape = GL_TRUE;
+                    cur->redisplay = GL_TRUE;
+               }
+     
+               if (cur->req.flags & WINDOW_REQUEST_RESTACK) {
+                    while (cur->req.z > 0) {
+                         if (cur->req.z >= +1000) {
+                              cur->window->RaiseToTop( cur->window );
+                              cur->req.z = 0;
+                              break;
+                         }
+               
+                         cur->window->Raise( cur->window );
+                         cur->req.z--;
+                    }
+          
+                    while (cur->req.z < 0) {
+                         if (cur->req.z <= -1000) {
+                              cur->window->LowerToBottom( cur->window );
+                              cur->req.z = 0;
+                              break;
+                         }
+               
+                         cur->window->Lower( cur->window );
+                         cur->req.z++;
+                    }
+               }
+     
+               if (cur->req.flags & WINDOW_REQUEST_SHOW) {
+                    cur->window->SetOpacity( cur->window, 0xff );
+                    cur->visible = GL_TRUE;
+                    cur->visibility = GL_TRUE;
+               }
+               else if (cur->req.flags & WINDOW_REQUEST_HIDE) {
+                    cur->window->SetOpacity( cur->window, 0x00 );
+                    cur->visible = GL_FALSE;
+                    cur->visibility = GL_TRUE;
+               }
+ 
+               cur->req.flags = 0;
+
+               if (cur == g_current)
+                    cur->gl->Lock( cur->gl );
+          }
+          
+          if (cur->reshape && reshape_func) {
+               int w, h;
+               g_idle = GL_FALSE;                    
+               cur->surface->GetSize( cur->surface, &w, &h ); 
+               __glutSetWindow( cur );
+               reshape_func( w, h );
+          }
+          
+          if (cur->visibility && visibility_func) {
+               g_idle = GL_FALSE;
+               __glutSetWindow( cur );
+               visibility_func( cur->visible ? GLUT_VISIBLE : GLUT_NOT_VISIBLE );
+          }
+
+          if (cur->redisplay && display_func) {
+               g_idle = GL_FALSE;
+               __glutSetWindow( cur );
+               display_func();
+          }
+               
+          cur->reshape    = GL_FALSE;
+          cur->visibility = GL_FALSE;
+          cur->redisplay  = GL_FALSE;
+
+          cur = next;
+     }
+}
+
+
+void
+__glutDestroyWindow( __GlutWindow *window )
+{
+     __GlutWindow *next = window->next;
+     __GlutWindow *prev = window->prev;
+     
+     __glutAssert( window != NULL );
+     
+     if (window == g_current)
+          g_current = NULL;
+     if (window == g_game)
+          g_game = NULL;
+     
+     window->gl->Unlock( window->gl );
+     window->gl->Release( window->gl );
+     window->surface->Release( window->surface );
+     
+     if (window->window) {
+          window->window->Destroy( window->window );
+          window->window->Release( window->window );
+     }
+     else {
+#if DIRECTFB_VERSION_CODE >= VERSION_CODE(0,9,26)
+          if (joystick)
+               joystick->DetachEventBuffer( joystick, events );
+          if (mouse)
+               mouse->DetachEventBuffer( mouse, events );
+          if (keyboard)
+               keyboard->DetachEventBuffer( keyboard, events );
+#endif
+          events->Reset( events );
+     }
+     
+     free( window );
+
+     if (next)
+          next->prev = prev;
+     else
+          g_stack->prev = prev;
+
+     if (window == g_stack)
+          g_stack = next;
+     else
+          prev->next = next;
+}
+
+
+void
+__glutDestroyWindows( void )
+{
+     __GlutWindow *cur = g_stack;
+     
+     while (cur) {
+          __GlutWindow *next = cur->next;
+          __glutDestroyWindow( cur );
+          cur = next;
+     }
+} 
+
+
+int GLUTAPIENTRY 
+glutCreateWindow( const char *title )
+{
+     __GlutWindow *window;
+     
+     if (getenv( "__GLUT_GAME_MODE" ))
+          return glutEnterGameMode();
+
+     glutInit( NULL, NULL );
+     
+     window = __glutCreateWindow( GL_FALSE );
+     if (!window)
+          return 0;
+          
+     __glutSetWindow( window );
+     glutSetCursor( GLUT_CURSOR_INHERIT );
+   
+     return window->id;
+}
+
+
+int GLUTAPIENTRY 
+glutCreateSubWindow( int win, int x, int y, int width, int height )
+{
+     return GL_FALSE;
+}
+
+
+void GLUTAPIENTRY 
+glutDestroyWindow( int win )
+{
+     __GlutWindow *cur;
+     
+     for (cur = g_stack; cur; cur = cur->next) {
+          if (cur->id == win) {
+               if (cur->window)
+                    cur->window->Destroy( cur->window );
+               
+               cur->req.flags |= WINDOW_REQUEST_DESTROY;  
+               break;
+          }
+     }
+}
+
+
+void GLUTAPIENTRY 
+glutPostRedisplay( void )
+{
+     if (g_current)
+          g_current->redisplay = GL_TRUE;
+}
+
+
+void GLUTAPIENTRY 
+glutPostWindowRedisplay( int win )
+{
+     __GlutWindow *cur;
+     
+     for (cur = g_stack; cur; cur = cur->next) {
+          if (cur->id == win) {
+               cur->redisplay = GL_TRUE;
+               break;
+          }
+     }
+}
+
+
+void GLUTAPIENTRY 
+glutSwapBuffers( void )
+{
+     if (g_current) {
+          g_current->gl->Unlock( g_current->gl );    
+          g_current->surface->Flip( g_current->surface, NULL, 0 );    
+          g_current->gl->Lock( g_current->gl );
+     }
+}
+
+
+int GLUTAPIENTRY 
+glutGetWindow( void )
+{
+     return (g_current) ? g_current->id : 0;
+}
+
+
+void GLUTAPIENTRY 
+glutSetWindow( int win )
+{
+     __GlutWindow *cur;
+
+     if (g_current && g_current->id == win)
+          return;
+     
+     for (cur = g_stack; cur; cur = cur->next) {
+          if (cur->id == win) {
+               __glutSetWindow( cur );
+               break;
+          }
+     }
+}
+
+
+void GLUTAPIENTRY 
+glutSetWindowTitle( const char *title )
+{
+}
+
+
+void GLUTAPIENTRY 
+glutSetIconTitle( const char *title )
+{
+}
+
+
+void GLUTAPIENTRY 
+glutFullScreen( void )
+{          
+     if (g_current && !g_game) {
+          DFBDisplayLayerConfig config;
+          
+          primary->GetConfiguration( primary, &config );
+          
+          g_current->req.flags |= WINDOW_REQUEST_POSITION |
+                                  WINDOW_REQUEST_RESIZE   |
+                                  WINDOW_REQUEST_RESTACK;
+          g_current->req.x = 0;
+          g_current->req.y = 0;
+          g_current->req.w = config.width;
+          g_current->req.h = config.height;
+          g_current->req.z = 1000;
+     }
+}   
+
+
+void GLUTAPIENTRY 
+glutPositionWindow( int x, int y )
+{
+     if (g_current && !g_game) {
+          g_current->req.flags |= WINDOW_REQUEST_POSITION; 
+          g_current->req.x = x;
+          g_current->req.y = y;
+     }
+}
+
+
+void GLUTAPIENTRY 
+glutReshapeWindow( int width, int height )
+{
+     if (g_current && !g_game) {
+          g_current->req.flags |= WINDOW_REQUEST_RESIZE;
+          g_current->req.w = width;
+          g_current->req.h = height;
+     }
+}
+
+
+void GLUTAPIENTRY 
+glutPopWindow( void )
+{
+     if (g_current && !g_game) {
+          g_current->req.flags |= WINDOW_REQUEST_RESTACK;
+          g_current->req.z--;
+     }
+}
+
+
+void GLUTAPIENTRY 
+glutPushWindow( void )
+{
+     if (g_current && !g_game) {
+          g_current->req.flags |= WINDOW_REQUEST_RESTACK;
+          g_current->req.z++;
+     }
+}
+
+
+void GLUTAPIENTRY 
+glutIconifyWindow( void )
+{
+}
+
+
+void GLUTAPIENTRY 
+glutShowWindow( void )
+{
+     if (g_current && !g_game) {
+          g_current->req.flags |= WINDOW_REQUEST_SHOW;
+          g_current->req.flags &= ~WINDOW_REQUEST_HIDE;
+     }
+}
+
+
+void GLUTAPIENTRY 
+glutHideWindow( void )
+{
+     if (g_current && !g_game) {
+          g_current->req.flags |= WINDOW_REQUEST_HIDE;
+          g_current->req.flags &= ~WINDOW_REQUEST_SHOW;
+     }
+}
+