Initial revision

1 files changed, 721 insertions, 0 deletions

diff --git a/xc/extras/Mesa/src-glut.beos/glutEvent.cpp b/xc/extras/Mesa/src-glut.beos/glutEvent.cpp
new file mode 100644
index 000000000..20b1cad23
--- /dev/null
+++ b/xc/extras/Mesa/src-glut.beos/glutEvent.cpp
@@ -0,0 +1,721 @@
+/***********************************************************
+ *	Copyright (C) 1997, Be Inc.  All rights reserved.
+ *
+ *  FILE:	glutEvent.cpp
+ *
+ *	DESCRIPTION:	here it is, the BeOS GLUT event loop
+ ***********************************************************/
+
+/***********************************************************
+ *	Headers
+ ***********************************************************/
+#include <GL/glut.h>
+#include "glutint.h"
+#include "glutState.h"
+#include "glutBlocker.h"
+
+/***********************************************************
+ *	CLASS:	GLUTtimer
+ *
+ *	DESCRIPTION:	list of timer callbacks
+ ***********************************************************/
+struct GLUTtimer {
+	GLUTtimer *next;	// list of timers
+	bigtime_t timeout;	// time to be called
+	GLUTtimerCB func;	// function to call
+	int value;			// value
+};
+
+/***********************************************************
+ *	Private variables
+ ***********************************************************/
+static GLUTtimer *__glutTimerList = 0;			// list of timer callbacks
+static GLUTtimer *freeTimerList = 0;
+
+/***********************************************************
+ *	FUNCTION:	glutTimerFunc (7.19)
+ *
+ *	DESCRIPTION:  register a new timer callback
+ ***********************************************************/
+void APIENTRY 
+glutTimerFunc(unsigned int interval, GLUTtimerCB timerFunc, int value)
+{
+  GLUTtimer *timer, *other;
+  GLUTtimer **prevptr;
+
+  if (!timerFunc)
+    return;
+
+  if (freeTimerList) {
+    timer = freeTimerList;
+    freeTimerList = timer->next;
+  } else {
+    timer = new GLUTtimer();
+    if (!timer)
+      __glutFatalError("out of memory.");
+  }
+
+  timer->func = timerFunc;
+  timer->value = value;
+  timer->next = NULL;
+  timer->timeout = system_time() + (interval*1000);	// 1000 ticks in a millisecond
+  prevptr = &__glutTimerList;
+  other = *prevptr;
+  while (other && (other->timeout < timer->timeout)) {
+    prevptr = &other->next;
+    other = *prevptr;
+  }
+  timer->next = other;
+  *prevptr = timer;
+}
+
+/***********************************************************
+ *	FUNCTION:	handleTimeouts
+ *
+ *	DESCRIPTION:  private function to handle outstanding timeouts
+ ***********************************************************/
+static void
+handleTimeouts(void)
+{
+  bigtime_t now;
+  GLUTtimer *timer;
+
+  /* Assumption is that __glutTimerList is already determined
+     to be non-NULL. */
+  now = system_time();
+  while (__glutTimerList->timeout <= now) {
+    timer = __glutTimerList;
+    if(gState.currentWindow)
+	    gState.currentWindow->LockGL();
+    timer->func(timer->value);
+    if(gState.currentWindow)
+	    gState.currentWindow->UnlockGL();
+    __glutTimerList = timer->next;
+    timer->next = freeTimerList;
+    freeTimerList = timer;
+    if (!__glutTimerList)
+      break;
+  }
+}
+
+
+/***********************************************************
+ *	FUNCTION:	processEventsAndTimeouts
+ *
+ *	DESCRIPTION:  clear gBlock, then check all windows for events
+ ***********************************************************/
+static void
+processEventsAndTimeouts(void)
+{
+	gBlock.WaitEvent();		// if there is already an event, returns
+							// immediately, otherwise wait forever
+	gBlock.ClearEvents();
+	
+	if (gState.currentWindow)
+		gState.currentWindow->LockGL();
+	for(int i=0; i<gState.windowListSize; i++) {
+		if (gState.windowList[i]) {
+			GlutWindow *win = gState.windowList[i];
+			win->Window()->Lock();
+			// NOTE: we can use win as a shortcut for gState.windowList[i]
+			// in callbacks, EXCEPT we need to check the original variable
+			// after each callback to make sure the window hasn't been destroyed
+			if (win->anyevents) {
+				win->anyevents = false;
+				if (win->reshapeEvent) {
+					win->reshapeEvent = false;
+					__glutSetWindow(win);
+					win->reshape(win->m_width, win->m_height);
+				}
+				if (!gState.windowList[i])
+					continue;	// window was destroyed by callback!
+
+				if (win->displayEvent) {
+					win->displayEvent = false;
+					__glutSetWindow(win);
+					win->display();
+					if (gState.windowList[i] && win->swapHack) {
+						// fake single buffering by swapping buffers
+						__glutSetWindow(win);
+						win->SwapBuffers();
+					}
+				}
+				if (!gState.windowList[i])
+					continue;	// window was destroyed by callback!
+
+				if (win->mouseEvent) {
+					win->mouseEvent = false;
+					__glutSetWindow(win);
+					if (win->mouse) {
+						gState.modifierKeys = win->modifierKeys;
+						win->mouse(win->button, win->mouseState, win->mouseX, win->mouseY);
+						gState.modifierKeys = ~0;
+					}
+				}
+				if (!gState.windowList[i])
+					continue;	// window was destroyed by callback!
+
+				if (win->menuEvent) {
+					win->menuEvent = false;
+					__glutSetWindow(win);
+					GlutMenu *menu = __glutGetMenuByNum(win->menuNumber);
+					if (menu) {
+						gState.currentMenu = menu;
+						menu->select(win->menuValue);
+					}
+				}
+				if (!gState.windowList[i])
+					continue;	// window was destroyed by callback!
+
+				if (win->statusEvent) {
+					win->statusEvent = false;
+					__glutSetWindow(win);
+					if (gState.menuStatus) {
+						gState.currentMenu = __glutGetMenuByNum(win->menuNumber);
+						gState.menuStatus(win->menuStatus, win->statusX, win->statusY);
+					}
+				}
+				if (!gState.windowList[i])
+					continue;	// window was destroyed by callback!
+
+				if (win->motionEvent) {
+					win->motionEvent = false;
+					__glutSetWindow(win);
+					if (win->motion)
+						win->motion(win->motionX, win->motionY);
+				}
+				if (!gState.windowList[i])
+					continue;	// window was destroyed by callback!
+
+				if (win->passiveEvent) {
+					win->passiveEvent = false;
+					__glutSetWindow(win);
+					if (win->passive)
+						win->passive(win->passiveX, win->passiveY);
+				}
+				if (!gState.windowList[i])
+					continue;	// window was destroyed by callback!
+
+				if (win->keybEvent) {
+					win->keybEvent = false;
+					__glutSetWindow(win);
+					if (win->keyboard) {
+						gState.modifierKeys = win->modifierKeys;
+						win->keyboard(win->key, win->keyX, win->keyY);
+						gState.modifierKeys = ~0;
+					}
+				}
+				if (!gState.windowList[i])
+					continue;	// window was destroyed by callback!
+
+				if (win->specialEvent) {
+					win->specialEvent = false;
+					__glutSetWindow(win);
+					if (win->special) {
+						gState.modifierKeys = win->modifierKeys;
+						win->special(win->specialKey, win->specialX, win->specialY);
+						gState.modifierKeys = ~0;
+					}
+				}
+				if (!gState.windowList[i])
+					continue;	// window was destroyed by callback!
+
+				if (win->entryEvent) {
+					win->entryEvent = false;
+					__glutSetWindow(win);
+					if (win->entry)
+						win->entry(win->entryState);
+				}
+				if (!gState.windowList[i])
+					continue;	// window was destroyed by callback!
+
+				if (win->visEvent) {
+					win->visEvent = false;
+					__glutSetWindow(win);
+					if (win->visibility)
+						win->visibility(win->visState);
+				}
+				if (!gState.windowList[i])
+					continue;	// window was destroyed by callback!
+			}
+			if(gState.windowList[i])	// window hasn't been destroyed
+				win->Window()->Unlock();
+		}
+	}
+	if (gState.currentWindow)
+		gState.currentWindow->UnlockGL();
+
+	// This code isn't necessary since BGLView automatically traps errors
+#if 0
+	if(gState.debug) {
+		for(int i=0; i<gState.windowListSize; i++) {
+			if (gState.windowList[i]) {
+				gState.windowList[i]->LockGL();
+				glutReportErrors();
+				gState.windowList[i]->UnlockGL();
+			}
+		}
+	}
+#endif
+	if (__glutTimerList) {
+      handleTimeouts();
+    }
+}
+
+/***********************************************************
+ *	FUNCTION:	waitForSomething
+ *
+ *	DESCRIPTION:  use gBlock to wait for a new event or timeout
+ ***********************************************************/
+static void
+waitForSomething(void)
+{
+	bigtime_t timeout = __glutTimerList->timeout;
+	bigtime_t now = system_time();
+	
+	if (gBlock.PendingEvent())
+		goto immediatelyHandleEvent;
+	
+	if(timeout>now)
+		gBlock.WaitEvent(timeout-now);
+	if (gBlock.PendingEvent()) {
+	immediatelyHandleEvent:
+		processEventsAndTimeouts();
+	} else {
+		if (__glutTimerList)
+			handleTimeouts();
+	}
+}
+
+/***********************************************************
+ *	FUNCTION:	idleWait
+ *
+ *	DESCRIPTION:  check for events, then call idle function
+ ***********************************************************/
+static void
+idleWait(void)
+{
+  if (gBlock.PendingEvent()) {
+    processEventsAndTimeouts();
+  } else {
+    if (__glutTimerList)
+      handleTimeouts();
+  }
+  /* Make sure idle func still exists! */
+  if(gState.currentWindow)
+	  gState.currentWindow->LockGL();
+  if (gState.idle)
+    gState.idle();
+  if(gState.currentWindow)
+	  gState.currentWindow->UnlockGL();
+}
+
+/***********************************************************
+ *	FUNCTION:	glutMainLoop (3.1)
+ *
+ *	DESCRIPTION:  enter the event processing loop
+ ***********************************************************/
+void glutMainLoop()
+{
+  if (!gState.windowListSize)
+    __glutFatalUsage("main loop entered with no windows created.");
+
+  if(gState.currentWindow)
+	  gState.currentWindow->UnlockGL();
+
+  for (;;) {
+    if (gState.idle) {
+      idleWait();
+    } else {
+      if (__glutTimerList) {
+        waitForSomething();
+      } else {
+        processEventsAndTimeouts();
+      }
+    }
+  }
+}
+
+/***********************************************************
+ *	CLASS:		GlutWindow
+ *
+ *	FUNCTION:	KeyDown
+ *
+ *	DESCRIPTION:  handles keyboard and special events
+ ***********************************************************/
+void GlutWindow::KeyDown(const char *s, int32 slen)
+{
+  ulong aChar = s[0];
+  BGLView::KeyDown(s,slen);
+  
+  BPoint p;
+	
+	switch (aChar) {
+		case B_FUNCTION_KEY:
+		switch(Window()->CurrentMessage()->FindInt32("key")) {
+			case B_F1_KEY:
+				aChar = GLUT_KEY_F1;
+				goto specialLabel;
+			case B_F2_KEY:
+				aChar = GLUT_KEY_F2;
+				goto specialLabel;
+			case B_F3_KEY:
+				aChar = GLUT_KEY_F3;
+				goto specialLabel;
+			case B_F4_KEY:
+				aChar = GLUT_KEY_F4;
+				goto specialLabel;
+			case B_F5_KEY:
+				aChar = GLUT_KEY_F5;
+				goto specialLabel;
+			case B_F6_KEY:
+				aChar = GLUT_KEY_F6;
+				goto specialLabel;
+			case B_F7_KEY:
+				aChar = GLUT_KEY_F7;
+				goto specialLabel;
+			case B_F8_KEY:
+				aChar = GLUT_KEY_F8;
+				goto specialLabel;
+			case B_F9_KEY:
+				aChar = GLUT_KEY_F9;
+				goto specialLabel;
+			case B_F10_KEY:
+				aChar = GLUT_KEY_F10;
+				goto specialLabel;
+			case B_F11_KEY:
+				aChar = GLUT_KEY_F11;
+				goto specialLabel;
+			case B_F12_KEY:
+				aChar = GLUT_KEY_F12;
+				goto specialLabel;
+			default:
+				return;
+		}
+		case B_LEFT_ARROW:
+			aChar = GLUT_KEY_LEFT;
+			goto specialLabel;
+		case B_UP_ARROW:
+			aChar = GLUT_KEY_UP;
+			goto specialLabel;
+		case B_RIGHT_ARROW:
+			aChar = GLUT_KEY_RIGHT;
+			goto specialLabel;
+		case B_DOWN_ARROW:
+			aChar = GLUT_KEY_DOWN;
+			goto specialLabel;
+		case B_PAGE_UP:
+			aChar = GLUT_KEY_PAGE_UP;
+			goto specialLabel;
+		case B_PAGE_DOWN:
+			aChar = GLUT_KEY_PAGE_DOWN;
+			goto specialLabel;
+		case B_HOME:
+			aChar = GLUT_KEY_HOME;
+			goto specialLabel;
+		case B_END:
+			aChar = GLUT_KEY_END;
+			goto specialLabel;
+		case B_INSERT:
+            aChar = GLUT_KEY_INSERT;
+specialLabel:	
+			if (special) {
+				anyevents = specialEvent = true;
+				GetMouse(&p,&m_buttons);
+				specialKey = aChar;
+				specialX = (int)p.x;
+				specialY = (int)p.y;
+				goto setModifiers;	// set the modifier variable
+			}
+			return;
+
+		default:
+			break;
+	}
+		
+	if (keyboard) {
+		anyevents = keybEvent = true;
+		GetMouse(&p,&m_buttons);
+		key = aChar;
+		keyX = (int)p.x;
+		keyY = (int)p.y;
+setModifiers:
+		modifierKeys = 0;
+		uint32 beMod = Window()->CurrentMessage()->FindInt32("modifiers");
+		if(beMod & B_SHIFT_KEY)
+			modifierKeys |= GLUT_ACTIVE_SHIFT;
+		if(beMod & B_CONTROL_KEY)
+			modifierKeys |= GLUT_ACTIVE_CTRL;
+		if(beMod & B_OPTION_KEY) {
+			// since the window traps B_COMMAND_KEY, we'll have to settle
+			// for the option key.. but we need to get the raw character,
+			// not the Unicode-enhanced version
+			key = Window()->CurrentMessage()->FindInt32("raw_char");
+			modifierKeys |= GLUT_ACTIVE_ALT;
+		}
+		gBlock.NewEvent();
+	}
+}
+
+/***********************************************************
+ *	CLASS:		GlutWindow
+ *
+ *	FUNCTION:	MouseDown
+ *
+ *	DESCRIPTION:  handles mouse and menustatus events
+ ***********************************************************/
+void GlutWindow::MouseDown(BPoint point)
+{
+	BGLView::MouseDown(point);
+	MouseCheck();
+}
+
+/***********************************************************
+ *	CLASS:		GlutWindow
+ *
+ *	FUNCTION:	MouseCheck
+ *
+ *	DESCRIPTION:  checks for button state changes
+ ***********************************************************/
+void GlutWindow::MouseCheck()
+{
+	if (mouseEvent)
+		return;		// we already have an outstanding mouse event
+
+	BPoint point;
+	uint32 newButtons;
+	GetMouse(&point, &newButtons);
+	if (m_buttons != newButtons) {
+		if (newButtons&B_PRIMARY_MOUSE_BUTTON && !(m_buttons&B_PRIMARY_MOUSE_BUTTON)) {
+			button = GLUT_LEFT_BUTTON;
+			mouseState = GLUT_DOWN;
+		} else if (m_buttons&B_PRIMARY_MOUSE_BUTTON && !(newButtons&B_PRIMARY_MOUSE_BUTTON)) {
+			button = GLUT_LEFT_BUTTON;
+			mouseState = GLUT_UP;
+		} else if (newButtons&B_SECONDARY_MOUSE_BUTTON && !(m_buttons&B_SECONDARY_MOUSE_BUTTON)) {
+			button = GLUT_RIGHT_BUTTON;
+			mouseState = GLUT_DOWN;
+		} else if (m_buttons&B_SECONDARY_MOUSE_BUTTON && !(newButtons&B_SECONDARY_MOUSE_BUTTON)) {
+			button = GLUT_RIGHT_BUTTON;
+			mouseState = GLUT_UP;
+		} else if (newButtons&B_TERTIARY_MOUSE_BUTTON && !(m_buttons&B_TERTIARY_MOUSE_BUTTON)) {
+			button = GLUT_MIDDLE_BUTTON;
+			mouseState = GLUT_DOWN;
+		} else if (m_buttons&B_TERTIARY_MOUSE_BUTTON && !(newButtons&B_TERTIARY_MOUSE_BUTTON)) {
+			button = GLUT_MIDDLE_BUTTON;
+			mouseState = GLUT_UP;
+		}
+	} else {
+		return;		// no change, return
+	}
+	m_buttons = newButtons;
+
+	if (mouseState == GLUT_DOWN) {
+		BWindow *w = Window();
+		GlutMenu *m = __glutGetMenuByNum(menu[button]);
+		if (m) {
+			if (gState.menuStatus) {
+				anyevents = statusEvent = true;
+				menuNumber = menu[button];
+				menuStatus = GLUT_MENU_IN_USE;
+				statusX = (int)point.x;
+				statusY = (int)point.y;
+				gBlock.NewEvent();
+			}		
+			BRect bounds = w->Frame();
+			point.x += bounds.left;
+			point.y += bounds.top;
+			GlutPopUp *bmenu = static_cast<GlutPopUp*>(m->CreateBMenu());	// start menu
+			bmenu->point = point;
+			bmenu->win = this;
+			thread_id menu_thread = spawn_thread(MenuThread, "menu thread", B_NORMAL_PRIORITY, bmenu);
+			resume_thread(menu_thread);
+			return;
+		}
+	}
+
+	if (mouse) {
+		anyevents = mouseEvent = true;
+		mouseX = (int)point.x;
+		mouseY = (int)point.y;
+		modifierKeys = 0;
+		uint32 beMod = modifiers();
+		if(beMod & B_SHIFT_KEY)
+			modifierKeys |= GLUT_ACTIVE_SHIFT;
+		if(beMod & B_CONTROL_KEY)
+			modifierKeys |= GLUT_ACTIVE_CTRL;
+		if(beMod & B_OPTION_KEY) {
+			modifierKeys |= GLUT_ACTIVE_ALT;
+		}
+		gBlock.NewEvent();
+	}
+}
+
+/***********************************************************
+ *	CLASS:		GlutWindow
+ *
+ *	FUNCTION:	MouseMoved
+ *
+ *	DESCRIPTION:  handles entry, motion, and passive events
+ ***********************************************************/
+void GlutWindow::MouseMoved(BPoint point,
+						ulong transit, const BMessage *msg)
+{
+	BGLView::MouseMoved(point,transit,msg);
+	
+	if(transit != B_INSIDE_VIEW) {
+		if (entry) {
+			anyevents = entryEvent = true;
+			gBlock.NewEvent();
+		}
+		if (transit == B_ENTERED_VIEW) {
+			entryState = GLUT_ENTERED;
+			MakeFocus();	// make me the current focus
+			__glutSetCursor(cursor);
+		} else
+			entryState = GLUT_LEFT;
+	}
+	
+	MouseCheck();
+	if(m_buttons) {
+		if(motion) {
+			anyevents = motionEvent = true;
+			motionX = (int)point.x;
+			motionY = (int)point.y;
+			gBlock.NewEvent();
+		}
+	} else {
+		if(passive) {
+			anyevents = passiveEvent = true;
+			passiveX = (int)point.x;
+			passiveY = (int)point.y;
+			gBlock.NewEvent();
+		}
+	}
+}
+
+/***********************************************************
+ *	CLASS:		GlutWindow
+ *
+ *	FUNCTION:	FrameResized
+ *
+ *	DESCRIPTION:  handles reshape event
+ ***********************************************************/
+void GlutWindow::FrameResized(float width, float height)
+{
+	BGLView::FrameResized(width, height);
+	if (visState == GLUT_VISIBLE) {
+		anyevents = reshapeEvent = true;
+		m_width = (int)(width)+1;
+		m_height = (int)(height)+1;
+		gBlock.NewEvent();
+	}
+}
+
+/***********************************************************
+ *	CLASS:		GlutWindow
+ *
+ *	FUNCTION:	Draw
+ *
+ *	DESCRIPTION:  handles reshape and display events
+ ***********************************************************/
+void GlutWindow::Draw(BRect updateRect)
+{
+	BGLView::Draw(updateRect);
+	BRect frame = Frame();
+	if (m_width != (frame.Width()+1) || m_height != (frame.Height()+1)) {
+		FrameResized(frame.Width(), frame.Height());
+	}
+	if (visState == GLUT_VISIBLE) {
+		anyevents = displayEvent = true;
+		gBlock.NewEvent();
+	}
+}
+
+/***********************************************************
+ *	CLASS:		GlutWindow
+ *
+ *	FUNCTION:	Hide
+ *				Show
+ *
+ *	DESCRIPTION:  handles visibility event
+ ***********************************************************/
+void GlutWindow::Hide()
+{
+	BGLView::Hide();
+	if (visibility) {
+		anyevents = visEvent = true;
+		visState = GLUT_NOT_VISIBLE;
+		displayEvent = false;	// display callbacks not allowed when hidden
+		gBlock.NewEvent();
+	}
+}
+
+void GlutWindow::Show()
+{
+	BGLView::Show();
+	if (visibility) {
+		anyevents = visEvent = true;
+		visState = GLUT_VISIBLE;
+		gBlock.NewEvent();
+	}
+}
+
+/***********************************************************
+ *	CLASS:		GlutWindow
+ *
+ *	FUNCTION:	Pulse
+ *
+ *	DESCRIPTION:  handles mouse up event (MouseUp is broken)
+ ***********************************************************/
+void GlutWindow::Pulse()
+{
+	BGLView::Pulse();
+	if (m_buttons) {	// if there are buttons pressed
+		MouseCheck();
+	}
+}
+
+/***********************************************************
+ *	CLASS:		GlutWindow
+ *
+ *	FUNCTION:	ErrorCallback
+ *
+ *	DESCRIPTION:  handles GL error messages
+ ***********************************************************/
+void GlutWindow::ErrorCallback(GLenum errorCode) {
+	__glutWarning("GL error: %s", gluErrorString(errorCode));
+}
+
+/***********************************************************
+ *	CLASS:		GlutWindow
+ *
+ *	FUNCTION:	MenuThread
+ *
+ *	DESCRIPTION:  a new thread to launch popup menu, wait
+ *			wait for response, then clean up afterwards and
+ *			send appropriate messages
+ ***********************************************************/
+long GlutWindow::MenuThread(void *m) {
+	GlutPopUp *bmenu = static_cast<GlutPopUp*>(m);
+	GlutWindow *win = bmenu->win;	// my window
+	GlutBMenuItem *result = (GlutBMenuItem*)bmenu->Go(bmenu->point);
+	win->Window()->Lock();
+	win->anyevents = win->statusEvent = true;
+	win->menuStatus = GLUT_MENU_NOT_IN_USE;
+	win->menuNumber = bmenu->menu;
+	BPoint cursor;
+	uint32 buttons;
+	win->GetMouse(&cursor, &buttons);
+	win->statusX = (int)cursor.x;
+	win->statusY = (int)cursor.y;
+	if(result && result->menu) {
+		win->menuEvent = true;
+		win->menuNumber = result->menu;  // in case it was a submenu
+		win->menuValue = result->value;
+	}
+	win->Window()->Unlock();
+	gBlock.NewEvent();
+	delete bmenu;
+	return 0;
+}