1 files changed, 39 insertions, 67 deletions

diff --git a/src/main.cpp b/src/main.cpp
index 620e97e..382cc93 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,99 +1,71 @@
 #define SDL_MAIN_HANDLED
 
-#include <SDL2/SDL.h>
-#include <SDL2/SDL_video.h>
 #include <abc.h>
 #include <dtx.h>
 #include <rez.h>
+#include <GL/gl.h>
+#include <osg/GLExtensions>
+#include <osg/State>
+#include <osgViewer/GraphicsWindow>
+#include <osgViewer/Viewer>
+#include <osgViewer/ViewerEventHandlers>
 #include <cstdlib>
 #include <cstdio>
 #include <iostream>
-#include <GL/gl.h>
 
 int main(int argc, char *argv[])
 {
-    int ret = EXIT_FAILURE;
-    rez::ball b("globalops.rez");
     std::unique_ptr<rez::file> f, abcf;
-    SDL_Window *window = nullptr;
-    SDL_GLContext glcontext = nullptr;
-    static const char extension[] = "GL_EXT_texture_compression_s3tc";
+    rez::ball b("globalops.rez");
     abc abc;
     dtx dtx;
+    osgViewer::Viewer viewer;
+    osg::Camera *cam;
+    osg::GraphicsContext *gfx;
+    osg::State *state;
+    osg::GLExtensions *ext;
+    osgViewer::GraphicsWindow *gfxw;
+
+    viewer.setUpViewInWindow(0, 0, 640, 480);
+    viewer.realize();
+    cam = viewer.getCamera();
+    gfx = cam->getGraphicsContext();
+    gfxw = dynamic_cast<osgViewer::GraphicsWindow *>(gfx);
 
-    if (SDL_Init(SDL_INIT_VIDEO) < 0)
+    if (!gfxw)
     {
-        std::cerr << "SDL_Init failed: " << SDL_GetError() << '\n';
-        goto end;
+        std::cerr << "Failed to cast osgViewe::GraphicContext to "
+            "osgViewer::GraphicsWindow\n";
+        return EXIT_FAILURE;
     }
 
-    SDL_GL_SetAttribute(SDL_GL_DOUBLEBUFFER, 1);
-    SDL_GL_SetAttribute(SDL_GL_DEPTH_SIZE, 24);
+    gfxw->setWindowName("GlobalOps");
+    state = gfx->getState();
+    state->initializeExtensionProcs();
+    ext = osg::GLExtensions::Get(state->getContextID(), true);
 
-    if (!(window = SDL_CreateWindow("GlobalOps", SDL_WINDOWPOS_CENTERED,
-        SDL_WINDOWPOS_CENTERED, 640, 480,
-        SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE)))
+    if (!ext)
     {
-        std::cerr << "SDL_CreateWindow failed: " << SDL_GetError() << '\n';
-        goto end;
+        std::cerr << "osg::GLExtensions::Get failed\n";
+        return EXIT_FAILURE;
     }
-    else if (!(glcontext = SDL_GL_CreateContext(window)))
+    else if (!ext->isCompressedTexImage2DSupported())
     {
-        std::cerr << "SDL_GL_CreateContext failed: " << SDL_GetError() << '\n';
-        goto end;
+        std::cerr << "OpenGL extension glCompressedTextImage2D not supported\n";
+        return EXIT_FAILURE;
     }
-    else if (!SDL_GL_ExtensionSupported(extension))
+    else if (!ext->isTextureCompressionS3TCSupported)
     {
-        std::cerr << "OpenGL extension " << extension << " not supported\n";
-        goto end;
-    }
-    else if (SDL_GL_MakeCurrent(window, glcontext))
-    {
-        std::cerr << "SDL_GL_MakeCurrent failed: " << SDL_GetError()
-            << std::endl;
-        goto end;
+        std::cerr << "OpenGL extension GL_EXT_texture_compression_s3tc "
+            "not supported\n";
+        return EXIT_FAILURE;
     }
     else if (b.parse()
         || !(f = b.open("interface/blueprints/antarctica_tacmap.dtx"))
         || dtx.parse(*f)
         || !(f = b.open("models/grenades/v_frag.abc"))
         || abc.parse(*f))
-        goto end;
-
-    for (;;)
-    {
-        SDL_Event event;
-
-        while (SDL_PollEvent(&event))
-        {
-            switch (event.type)
-            {
-                case SDL_QUIT:
-                    ret = EXIT_SUCCESS;
-                    goto end;
-            }
-        }
-
-        glClearColor(0.0f, 0.0f, 0.0f, 1.0f);
-        glClear(GL_COLOR_BUFFER_BIT);
-
-        if (dtx.draw())
-            goto end;
-
-        SDL_GL_SwapWindow(window);
-        SDL_Delay(1.0f / 60.f * 1000.0f);
-    }
-
-end:
-
-    if (glcontext)
-        SDL_GL_DeleteContext(glcontext);
-
-    if (window)
-        SDL_DestroyWindow(window);
-
-    if (SDL_WasInit(SDL_INIT_VIDEO))
-        SDL_QuitSubSystem(SDL_INIT_VIDEO);
+        return EXIT_FAILURE;
 
-    return ret;
+    return viewer.run();
 }