Initial revision
diff --git a/progs/beos/sample.cpp b/progs/beos/sample.cpp
new file mode 100644
index 0000000..2310b33
--- /dev/null
+++ b/progs/beos/sample.cpp
@@ -0,0 +1,212 @@
+// sample BGLView app from the Be Book
+
+
+#include <stdio.h>
+#include <Application.h>
+#include <Window.h>
+#include <GLView.h>
+
+
+class SampleGLView : public BGLView
+{
+public:
+ SampleGLView(BRect frame, uint32 type);
+ virtual void AttachedToWindow(void);
+ virtual void FrameResized(float newWidth, float newHeight);
+ virtual void ErrorCallback(GLenum which);
+
+ void Render(void);
+
+private:
+ void gInit(void);
+ void gDraw(void);
+ void gReshape(int width, int height);
+
+ float width;
+ float height;
+};
+
+
+
+class SampleGLWindow : public BWindow
+{
+public:
+ SampleGLWindow(BRect frame, uint32 type);
+ virtual bool QuitRequested() { return true; }
+
+private:
+ SampleGLView *theView;
+};
+
+
+class SampleGLApp : public BApplication
+{
+public:
+ SampleGLApp();
+private:
+ SampleGLWindow *theWindow;
+};
+
+
+SampleGLApp::SampleGLApp()
+ : BApplication("application/x-vnd.sample")
+{
+ BRect windowRect;
+ uint32 type = BGL_RGB|BGL_DOUBLE;
+
+ windowRect.Set(50, 50, 350, 350);
+
+ theWindow = new SampleGLWindow(windowRect, type);
+}
+
+
+
+SampleGLWindow::SampleGLWindow(BRect frame, uint32 type)
+ : BWindow(frame, "OpenGL Test", B_TITLED_WINDOW, 0)
+{
+ theView = new SampleGLView(Bounds(), type);
+ AddChild(theView);
+ Show();
+ theView->Render();
+}
+
+
+
+SampleGLView::SampleGLView(BRect frame, uint32 type)
+ : BGLView(frame, "SampleGLView", B_FOLLOW_ALL_SIDES, 0, type)
+{
+ width = frame.right-frame.left;
+ height = frame.bottom-frame.top;
+}
+
+
+void SampleGLView::AttachedToWindow(void)
+{
+ LockGL();
+ BGLView::AttachedToWindow();
+ gInit();
+ gReshape(width, height);
+ UnlockGL();
+}
+
+
+void SampleGLView::FrameResized(float newWidth, float newHeight)
+{
+ LockGL();
+ BGLView::FrameResized(width, height);
+ width = newWidth;
+ height = newHeight;
+
+ gReshape(width,height);
+
+ UnlockGL();
+ Render();
+}
+
+
+void SampleGLView::ErrorCallback(GLenum whichError)
+{
+// fprintf(stderr, "Unexpected error occured (%d):\\n", whichError);
+// fprintf(stderr, " %s\\n", gluErrorString(whichError));
+}
+
+
+
+// globals
+GLenum use_stipple_mode; // GL_TRUE to use dashed lines
+GLenum use_smooth_mode; // GL_TRUE to use anti-aliased lines
+GLint linesize; // Line width
+GLint pointsize; // Point diameter
+
+float pntA[3] = {
+ -160.0, 0.0, 0.0
+};
+float pntB[3] = {
+ -130.0, 0.0, 0.0
+};
+
+
+
+void SampleGLView::gInit(void)
+{
+ glClearColor(0.0, 0.0, 0.0, 0.0);
+ glLineStipple(1, 0xF0E0);
+ glBlendFunc(GL_SRC_ALPHA, GL_ONE);
+ use_stipple_mode = GL_FALSE;
+ use_smooth_mode = GL_TRUE;
+ linesize = 2;
+ pointsize = 4;
+}
+
+
+
+void SampleGLView::gDraw(void)
+{
+ GLint i;
+
+ glClear(GL_COLOR_BUFFER_BIT);
+ glLineWidth(linesize);
+
+ if (use_stipple_mode) {
+ glEnable(GL_LINE_STIPPLE);
+ } else {
+ glDisable(GL_LINE_STIPPLE);
+ }
+
+ if (use_smooth_mode) {
+ glEnable(GL_LINE_SMOOTH);
+ glEnable(GL_BLEND);
+ } else {
+ glDisable(GL_LINE_SMOOTH);
+ glDisable(GL_BLEND);
+ }
+
+ glPushMatrix();
+
+ for (i = 0; i < 360; i += 5) {
+ glRotatef(5.0, 0,0,1); // Rotate right 5 degrees
+ glColor3f(1.0, 1.0, 0.0); // Set color for line
+ glBegin(GL_LINE_STRIP); // And create the line
+ glVertex3fv(pntA);
+ glVertex3fv(pntB);
+ glEnd();
+
+ glPointSize(pointsize); // Set size for point
+ glColor3f(0.0, 1.0, 0.0); // Set color for point
+ glBegin(GL_POINTS);
+ glVertex3fv(pntA); // Draw point at one end
+ glVertex3fv(pntB); // Draw point at other end
+ glEnd();
+ }
+
+ glPopMatrix(); // Done with matrix
+}
+
+
+void SampleGLView::gReshape(int width, int height)
+{
+ glViewport(0, 0, width, height);
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glOrtho(-175, 175, -175, 175, -1, 1);
+ glMatrixMode(GL_MODELVIEW);
+}
+
+
+void SampleGLView::Render(void)
+{
+ LockGL();
+ gDraw();
+ SwapBuffers();
+ UnlockGL();
+}
+
+
+
+int main(int argc, char *argv[])
+{
+ SampleGLApp *app = new SampleGLApp;
+ app->Run();
+ delete app;
+ return 0;
+}