graphics fixes

svn path=/trunk/boinc/; revision=784

api/boinc_api.C

@@ -55,7 +55,7 @@ MMRESULT timer_id;
 #include <gl\gl.h>            // Header File For The OpenGL32 Library
 #include <gl\glu.h>            // Header File For The GLu32 Library
 #include <gl\glaux.h>        // Header File For The Glaux Library
-HANDLE hGlobalDrawEvent,hQuitEvent;
+HANDLE hDoneDrawingEvent,hQuitEvent, hGraphicsDrawEvent;
 extern HANDLE graphics_threadh;
 extern BOOL    win_loop_done;
 #endif
@@ -311,11 +311,14 @@ bool boinc_time_to_checkpoint() {
         ok_to_draw = 1;
         // And wait for the graphics thread to notify us that it's done drawing
 #ifdef _WIN32
-        ResetEvent(hGlobalDrawEvent);
+		// Notify the graphics thread
+		SetEvent(hGraphicsDrawEvent);
+		// Reset the draw done event
+        ResetEvent(hDoneDrawingEvent);
         while (ok_to_draw) {
             // Wait for drawing to finish.  We don't do an infinite wait here to avoid the
             // possibility of deadlock (which was happening with an infinite wait value)
-            WaitForSingleObject( hGlobalDrawEvent, 10 );
+            WaitForSingleObject( hDoneDrawingEvent, 10 );
         }
 #endif _WIN32
 #ifdef __APPLE_CC__
@@ -516,7 +519,13 @@ int set_timer(double period) {
 #ifdef BOINC_APP_GRAPHICS
     // Create the event object used to signal between the
     // worker and event threads
-    hGlobalDrawEvent = CreateEvent( 
+    hDoneDrawingEvent = CreateEvent( 
+            NULL,     // no security attributes
+            TRUE,    // manual reset event
+            TRUE,     // initial state is signaled
+            NULL);    // object not named
+
+    hGraphicsDrawEvent = CreateEvent( 
             NULL,     // no security attributes
             TRUE,    // manual reset event
             TRUE,     // initial state is signaled

api/windows_opengl.cpp

@@ -53,7 +53,7 @@ bool	active=TRUE;		// Window Active Flag Set To TRUE By Default
 bool	fullscreen=TRUE;	// Fullscreen Flag Set To Fullscreen Mode By Default
 BOOL	win_loop_done=FALSE;			// Bool Variable To Exit Loop
 int		counter,old_left,old_top,old_right,old_bottom,cur_gfx_mode,old_gfx_mode;
-extern HANDLE hGlobalDrawEvent,hQuitEvent;
+extern HANDLE hGraphicsDrawEvent,hQuitEvent,hDoneDrawingEvent;
 
 int DrawGLScene(GLvoid);
 LRESULT	CALLBACK WndProc(HWND, UINT, WPARAM, LPARAM);	// Declaration For WndProc
@@ -164,6 +164,11 @@ void ChangeMode( int mode ) {
 	switch (mode) {
 		case MODE_NO_GRAPHICS:
 			if (fullscreen) while(ShowCursor(true) < 0);		// Show Mouse Pointer
+			GetWindowRect( hWnd, &WindowRect );
+			old_left = WindowRect.left;
+			old_top = WindowRect.top;
+			old_right = WindowRect.right;
+			old_bottom = WindowRect.bottom;
 			fullscreen = false;
 			break;
 		case MODE_WINDOW:
@@ -420,6 +425,21 @@ LRESULT CALLBACK WndProc(	HWND	hWnd,			// Handle For This Window
 			ReSizeGLScene(LOWORD(lParam),HIWORD(lParam));  // LoWord=Width, HiWord=Height
 			return 0;								// Jump Back
 		}
+
+		// If we get a redraw request outside of our normal
+		// redraw framework, just fill the window with black
+		case WM_PAINT:
+		{
+			PAINTSTRUCT ps;
+		    HDC hdc;
+			RECT winRect;
+
+			hdc = BeginPaint(hWnd, &ps);
+			GetClientRect(hWnd, &winRect);
+            FillRect(hdc, &winRect, (HBRUSH) GetStockObject(BLACK_BRUSH));
+            EndPaint(hWnd, &ps);
+			return 0;
+		}
 	}
 
 	// Pass All Unhandled Messages To DefWindowProc
@@ -428,6 +448,7 @@ LRESULT CALLBACK WndProc(	HWND	hWnd,			// Handle For This Window
 
 DWORD WINAPI win_graphics_event_loop( LPVOID gi ) {
 	MSG			msg;		// Windows Message Structure
+	HANDLE		objs[1];
  
 	fullscreen=FALSE;							// Windowed Mode
 
@@ -461,21 +482,23 @@ DWORD WINAPI win_graphics_event_loop( LPVOID gi ) {
 				TranslateMessage(&msg);				// Translate The Message
 				DispatchMessage(&msg);				// Dispatch The Message
 			}
+		} else {
+			objs[0] = hGraphicsDrawEvent;
+			MsgWaitForMultipleObjects( 1, objs, FALSE, 1000, QS_ALLEVENTS|QS_POSTMESSAGE );
 		}
-		else										// If There Are No Messages
-		{
-			if (ok_to_draw) {						// Window Active?
-				if (active) {	// Not Time To Quit, Update Screen
-					// Draw The Scene
-					DrawGLScene();
-					// Swap Buffers (Double Buffering).  This seems to take lots of CPU time
-					SwapBuffers(hDC);
-				}
-				// TODO: Do we need a mutex for ok_to_draw?
-				ok_to_draw = 0;
-				// Signal the worker thread that we're done drawing
-				SetEvent(hGlobalDrawEvent);
+		if (ok_to_draw) {						// Window Active?
+			if (active) {	// Time To Update Screen
+				// Draw The Scene
+				DrawGLScene();
+				// Swap Buffers (Double Buffering).  This seems to take lots of CPU time
+				SwapBuffers(hDC);
 			}
+			// TODO: Do we need a mutex for ok_to_draw?
+			ok_to_draw = 0;
+			// Signal the worker thread that we're done drawing
+			SetEvent(hDoneDrawingEvent);
+			// Put hGraphicsDrawEvent in unsignaled state so we don't immediately wake up
+			ResetEvent(hGraphicsDrawEvent);
 		}
 	}
 

lib/parse.C

@@ -151,7 +151,7 @@ int read_file_malloc(char* pathname, char*& str) {
 // replace XML element contents.  not currently used
 //
 void replace_element(char* buf, char* start, char* end, char* replacement) {
-    char temp[MAX_BLOB_SIZE], *p, *q;
+    char temp[4096], *p, *q;
 
     p = strstr(buf, start);
     p += strlen(start);

lib/parse.h

@@ -18,7 +18,6 @@
 //
 
 #include <stdio.h>
-#include <db.h>
 
 extern bool parse(char*, char*);
 extern bool parse_int(char*, char*, int&);