Fix demo.cpp, which wasn't working as expected.

Add a GLInfo app, a graphical tool displaying GL Info as a treeview.
Usefull to see which OpenGL renderer you use and which extension(s) is supported.
Convert the Makefile to be $(TOP)/configs/default-based.

progs/beos/GLInfo.cpp

@@ -0,0 +1,122 @@
+// Small app to display GL infos
+
+#include <stdio.h>
+#include <string.h>
+
+#include <Application.h>
+#include <Window.h>
+#include <OutlineListView.h>
+#include <ScrollView.h>
+#include <GLView.h>
+
+#include <String.h>
+
+#include <GL/gl.h>
+
+
+class GLInfoWindow : public BWindow 
+{
+public:
+   GLInfoWindow(BRect frame);
+   virtual bool   QuitRequested() { be_app->PostMessage(B_QUIT_REQUESTED); return true; }
+   
+private:
+	BGLView 			*gl;
+	BOutlineListView	*list;
+	BScrollView			*scroller;
+};
+
+
+class GLInfoApp : public BApplication
+{
+public:
+   GLInfoApp();
+private:
+   GLInfoWindow      *window;
+};
+
+
+GLInfoApp::GLInfoApp()
+   : BApplication("application/x-vnd.OBOS-GLInfo")
+{
+   window = new GLInfoWindow(BRect(50, 50, 350, 350));
+}
+
+GLInfoWindow::GLInfoWindow(BRect frame)
+   : BWindow(frame, "OpenGL Info", B_TITLED_WINDOW, 0)
+{
+	BRect	r = Bounds();
+	char *s;
+	BString l;
+
+	// Add a outline list view
+	r.right -= B_V_SCROLL_BAR_WIDTH;
+	list 		= new BOutlineListView(r, "GLInfoList", B_SINGLE_SELECTION_LIST, B_FOLLOW_ALL_SIDES);
+	scroller 	= new BScrollView("GLInfoListScroller", list, B_FOLLOW_ALL_SIDES,
+						B_WILL_DRAW | B_FRAME_EVENTS, false, true);
+						
+	gl = new BGLView(r, "opengl", B_FOLLOW_ALL_SIDES, 0, BGL_RGB | BGL_DOUBLE);
+	gl->Hide();
+	AddChild(gl);
+	AddChild(scroller);
+	
+	Show();
+	
+	LockLooper();
+	
+	// gl->LockGL();
+	
+	s = (char *) glGetString(GL_RENDERER);
+	if (!s)
+		goto error;
+		
+	list->AddItem(new BStringItem(s));
+
+	s = (char *) glGetString(GL_VENDOR);
+	if (s) {
+		l = ""; l << "Vendor Name: " << s;
+		list->AddItem(new BStringItem(l.String(), 1));
+	}
+
+	s = (char *) glGetString(GL_VERSION);
+	if (s) {
+		l = ""; l << "Version: " << s;
+		list->AddItem(new BStringItem(l.String(), 1));
+	}
+	
+	s = (char *) glGetString(GL_RENDERER);
+	if (s) {
+		l = ""; l << "Renderer Name: " << s;
+		list->AddItem(new BStringItem(l.String(), 1));
+	}
+
+	s = (char *) glGetString(GL_EXTENSIONS);
+	if (s) {
+		list->AddItem(new BStringItem("OpenGL Extensions", 1));
+		while (*s) {
+			char extname[255];
+			int n = strcspn(s, " ");
+			strncpy(extname, s, n);
+			extname[n] = 0;
+			list->AddItem(new BStringItem(extname, 2));
+			if (! s[n])
+				break;
+			s += (n + 1);	// next !
+		}
+	}
+
+	// gl->UnlockGL();
+
+error:
+	UnlockLooper();
+}
+
+
+
+int main(int argc, char *argv[])
+{
+   GLInfoApp *app = new GLInfoApp;
+   app->Run();
+   delete app;
+   return 0;
+}

progs/beos/Makefile

@@ -1,42 +1,31 @@
-# $Id: Makefile,v 1.2 1999/09/17 00:55:21 brianp Exp $
+# progs/beos/Makefile
+
+TOP = ../..
+include $(TOP)/configs/current
 
 # Makefile for BeOS demos
 
 # Written by Brian Paul
 # This file is in the public domain.
+#
+# Modified by Philippe Houdoin
 
+LDFLAGS += -soname=_APP_ $(APP_LIB_DEPS)
 
-
+default: demo sample GLInfo
-CC = g++
-
-# Use Mesa:
-CFLAGS = -I../include -c -g
-LFLAGS = -L../lib  -Xlinker -rpath ../lib -lbe -lGL
-
-# Use BeOS OpenGL:
-#CFLAGS = -I/boot/develop/headers/be/opengl -c -g
-#LFLAGS = -L../lib  -Xlinker -rpath ../lib -lbe -lGL
-
-
-PROGRAMS = demo sample
-
-default: $(PROGRAMS)
-
 
 clean:
-	rm -f demo sample
+	rm -f demo sample GLInfo
 	rm -f *.o
 
-
 demo: demo.o
-	$(CC) demo.o $(LFLAGS) -o $@
+	$(LD) demo.o $(LDFLAGS) -o $@
-
-demo.o: demo.cpp
-	$(CC) $(CFLAGS) demo.cpp
-
 
 sample: sample.o
-	$(CC) sample.o $(LFLAGS) -o $@
+	$(LD) sample.o $(LDFLAGS) -o $@
 
-sample.o: sample.cpp
+GTLInfo: GLInfo.o
-	$(CC) $(CFLAGS) sample.cpp
+	$(LD) GLInfo.o $(LDFLAGS) -o $@
+
+.cpp.o:
+	$(CC) -c $< $(CFLAGS) -o $@

progs/beos/demo.cpp

@@ -1,7 +1,8 @@
-// $Id: demo.cpp,v 1.1 1999/08/19 00:55:40 jtg Exp $
+// $Id: demo.cpp,v 1.2 2004/08/14 09:59:16 phoudoin Exp $
 
 // Simple BeOS GLView demo
 // Written by Brian Paul
+// Changes by Philippe Houdoin
 // This file is in the public domain.
 
 
@@ -11,19 +12,40 @@
 #include <Window.h>
 #include <GLView.h>
 
+class MyGL : public BGLView
+{
+public:
+	MyGL(BRect rect, char *name, ulong options);
+
+	virtual void AttachedToWindow();
+	virtual void Pulse();
+	virtual void FrameResized(float w, float h);
+
+private:
+	void Render();
+	void Reshape(float w, float h);
+	float mAngle;
+};
+
 
 class MyWindow : public BWindow
 {
 public:
-   MyWindow(BRect frame);
+	MyWindow(BRect frame);
-   virtual bool QuitRequested();
+	virtual bool QuitRequested();
 };
 
 
 MyWindow::MyWindow(BRect frame)
    : BWindow(frame, "demo", B_TITLED_WINDOW, B_NOT_ZOOMABLE)
 {
-   // no-op
+   // Make OpenGL view and put it in the window
+   BRect r = Bounds();
+   r.InsetBy(5, 5);
+   
+   MyGL *gl = new MyGL(r, "GL", BGL_RGB | BGL_DOUBLE);
+   AddChild(gl);
+   SetPulseRate(1000000 / 30);
 }
 
 bool MyWindow::QuitRequested()
@@ -33,119 +55,91 @@ bool MyWindow::QuitRequested()
 }
 
 
-class MyGL : public BGLView
-{
-public:
-   MyGL(BRect rect, char *name, ulong options);
-
-//	virtual void AttachedToWindow();
-   virtual void Draw(BRect updateRect);
-   virtual void Pulse();
-   virtual void FrameResized(float w, float h);
-private:
-   float mAngle;
-};
-
 
 MyGL::MyGL(BRect rect, char *name, ulong options)
-   : BGLView(rect, name, B_FOLLOW_LEFT_RIGHT | B_FOLLOW_TOP_BOTTOM, 0, options)
+   : BGLView(rect, name, B_FOLLOW_ALL_SIDES, B_PULSE_NEEDED, options)
 {
-   mAngle = 0.0;
+	mAngle = 0.0;
 }
 
 
-#if 0
 void MyGL::AttachedToWindow()
 {
-   BGLView::AttachedToWindow();
+	BGLView::AttachedToWindow();
-   LockGL();
+
-   glClearColor(.7, .7, 0, 0);
+	LockGL();
-   UnlockGL();
+	glClearColor(0.7, 0.7, 0, 0);
+	Reshape(Bounds().Width(), Bounds().Height());
+	UnlockGL();
 }
-#endif
 
 
 void MyGL::FrameResized(float w, float h)
 {
-    BGLView::FrameResized(w, h);
+	BGLView::FrameResized(w, h);
 
-    printf("FrameResized\n");
+	LockGL();
-    LockGL();
+	Reshape(w, h);
-    BGLView::FrameResized(w,h);
+	UnlockGL();
-    glViewport(0, 0, (int) (w + 1), (int) (h + 1));
+
-    glMatrixMode(GL_PROJECTION);
+	Render();
-    glLoadIdentity();
-    glFrustum(-1, 1, -1, 1, 10, 30);
-    glMatrixMode(GL_MODELVIEW);
-    glLoadIdentity();
-    glTranslatef(0, 0, -18);
-    UnlockGL();
 }
 
 
-
+void MyGL::Pulse()
-void MyGL::Draw(BRect r)
+{
+	mAngle += 1.0;
+	Render();
+}
+
+
+void MyGL::Render()
 {
-    printf("MyGL::Draw\n");
-    BGLView::Draw(r);
     LockGL();
+
     glClear(GL_COLOR_BUFFER_BIT);
+    
     glPushMatrix();
-    glRotatef(mAngle, 0, 0, 1);
+
+    glRotated(mAngle, 0, 0, 1);
     glColor3f(0, 0, 1);
+
     glBegin(GL_POLYGON);
     glVertex2f(-1, -1);
     glVertex2f( 1, -1);
     glVertex2f( 1,  1);
     glVertex2f(-1,  1);
     glEnd();
+
+	glPopMatrix();
+
     SwapBuffers();
+
     UnlockGL();
 }
 
 
-void MyGL::Pulse()
+void MyGL::Reshape(float w, float h)
 {
-   printf("pulse\n");
+	glViewport(0, 0, (int) (w + 1), (int) (h + 1));
-   BGLView::Pulse();
+	glMatrixMode(GL_PROJECTION);
-   mAngle += 1.0;
+	glLoadIdentity();
-
+	glFrustum(-1, 1, -1, 1, 10, 30);
-   LockGL();
+	glMatrixMode(GL_MODELVIEW);
-   glClear(GL_COLOR_BUFFER_BIT);
+	glLoadIdentity();
-   glPushMatrix();
+	glTranslatef(0, 0, -18);
-   glRotatef(mAngle, 0, 0, 1);
-   glColor3f(0, 0, 1);
-   glBegin(GL_POLYGON);
-   glVertex2f(-1, -1);
-   glVertex2f( 1, -1);
-   glVertex2f( 1,  1);
-   glVertex2f(-1,  1);
-   glEnd();
-   SwapBuffers();
-   UnlockGL();
 }
 
 
-
 int main(int argc, char *argv[])
 {
    BApplication *app = new BApplication("application/demo");
 
    // make top-level window
-   int x = 500, y = 500;
+   MyWindow *win = new MyWindow(BRect(100, 100, 500, 500));
-   int w = 400, h = 400;
-   MyWindow *win = new MyWindow(BRect(x, y, x + w, y + h));
-   //	win->Lock();
-   //	win->Unlock();
    win->Show();
 
-   // Make OpenGL view and put it in the window
+    app->Run();
-   MyGL *gl = new MyGL(BRect(5, 5, w-10, h-10), "GL", BGL_RGB | BGL_DOUBLE);
-   //	MyGL *gl = new MyGL(BRect(5, 5, w-10, h-10), "GL", BGL_RGB );
-   win->AddChild(gl);
-
-   printf("calling app->Run\n");	
-   app->Run();
 
    delete app;
 

progs/beos/sample.cpp

@@ -92,8 +92,10 @@ void SampleGLView::AttachedToWindow(void)
 
 void SampleGLView::FrameResized(float newWidth, float newHeight) 
 {
+   BGLView::FrameResized(newWidth, newHeight);
+
    LockGL();
-   BGLView::FrameResized(width, height);
+
    width = newWidth;
    height = newHeight;