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.

1 files changed, 122 insertions, 0 deletions

diff --git a/progs/beos/GLInfo.cpp b/progs/beos/GLInfo.cpp
new file mode 100644
index 00000000000..b8788decd29
--- /dev/null
+++ b/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;
+}