Added a based SDL viewer - osgsimpleviewerSDL

Make/dependencies

@@ -23,6 +23,8 @@ XINE_INSTALLED ?= no
 
 QT3_INSTALLED ?= no
 
+SDL_INSTALLED ?= no
+
 ifeq ($(OS),Darwin)
     DARWIN_QUICKTIME ?= yes
 endif

Make/makedirdefs

@@ -283,14 +283,14 @@ ifeq ($(PRODUCER_INSTALLED),yes)
 endif
 
 ifeq ($(GLUT_INSTALLED),yes)
-
     EXAMPLE_DIRS += osgGLUTsimple
     EXAMPLE_DIRS += osgGLUTkeyboardmouse
-
 endif
 
 ifeq ($(QT3_INSTALLED),yes)
-
     EXAMPLE_DIRS += osgsimpleviewerQT3
-
+endif
+
+ifeq ($(SDL_INSTALLED),yes)
+    EXAMPLE_DIRS += osgsimpleviewerSDL
 endif

examples/osgsimpleviewerSDL/GNUmakefile

@@ -0,0 +1,17 @@
+TOPDIR = ../..
+include $(TOPDIR)/Make/makedefs
+
+CXXFILES =\
+	osgsimpleviewerSDL.cpp\
+
+LIBS     += -losgGA -losgDB -losgUtil -losg `sdl-config --libs` $(GL_LIBS) $(X_LIBS) $(OTHER_LIBS) 
+
+INSTFILES = \
+	$(CXXFILES)\
+	GNUmakefile.inst=GNUmakefile
+
+EXEC = osgsimpleviewerSDL
+
+INC += $(X_INC) `sdl-config --cflags`
+
+include $(TOPDIR)/Make/makerules 

examples/osgsimpleviewerSDL/GNUmakefile.inst

@@ -0,0 +1,13 @@
+TOPDIR = ../..
+include $(TOPDIR)/Make/makedefs
+
+CXXFILES =\
+	osgsimpleviewerSDL.cpp\
+
+LIBS  += -losgGA -losgDB -losgUtil -losg `sdl-config --libs`  $(GL_LIBS) $(X_LIBS) $(OTHER_LIBS) 
+
+EXEC = osgsimpleviewerSDL
+
+INC += $(X_INC) `sdl-config --cflags`
+
+include $(TOPDIR)/Make/makerules

examples/osgsimpleviewerSDL/osgsimpleviewerSDL.cpp

@@ -0,0 +1,123 @@
+// C++ source file - (C) 2003 Robert Osfield, released under the OSGPL.
+// (C) 2005 Mike Weiblen http://mew.cx/ released under the OSGPL.
+// Simple example using GLUT to create an OpenGL window and OSG for rendering.
+// Derived from osgGLUTsimple.cpp and osgkeyboardmouse.cpp
+
+#include <osgGA/SimpleViewer>
+#include <osgGA/TrackballManipulator>
+#include <osgDB/ReadFile>
+
+#include <SDL.h>
+#include <SDL_events.h>
+
+#include <iostream>
+
+int main( int argc, char **argv )
+{
+    if (argc<2)
+    {
+        std::cout << argv[0] <<": requires filename argument." << std::endl;
+        return 1;
+    }
+
+    // init SDL
+    if ( SDL_Init(SDL_INIT_VIDEO) < 0 )
+    {
+        fprintf(stderr, "Unable to init SDL: %s\n", SDL_GetError());
+        exit(1);
+    }
+    atexit(SDL_Quit);
+    
+
+    // load the scene.
+    osg::ref_ptr<osg::Node> loadedModel = osgDB::readNodeFile(argv[1]);
+    if (!loadedModel)
+    {
+        std::cout << argv[0] <<": No data loaded." << std::endl;
+        return 1;
+    }
+
+    unsigned int windowWidth = 1280;
+    unsigned int windowHeight = 1024;
+
+    SDL_GL_SetAttribute( SDL_GL_RED_SIZE, 5 );
+    SDL_GL_SetAttribute( SDL_GL_GREEN_SIZE, 5 );
+    SDL_GL_SetAttribute( SDL_GL_BLUE_SIZE, 5 );
+    SDL_GL_SetAttribute( SDL_GL_DEPTH_SIZE, 16 );
+    SDL_GL_SetAttribute( SDL_GL_DOUBLEBUFFER, 1 );
+    
+        // set up the surface to render to
+    SDL_Surface* screen = SDL_SetVideoMode(windowWidth, windowHeight, 32, SDL_OPENGL | SDL_FULLSCREEN | SDL_RESIZABLE);
+    if ( screen == NULL )
+    {
+        std::cerr<<"Unable to set "<<windowWidth<<"x"<<windowHeight<<" video: %s\n"<< SDL_GetError()<<std::endl;
+        exit(1);
+    }
+    
+    SDL_EnableUNICODE(1);
+    
+    osgGA::SimpleViewer viewer;
+    viewer.setSceneData(loadedModel.get());
+    viewer.setCameraManipulator(new osgGA::TrackballManipulator);
+    viewer.getEventQueue()->windowResize(0, 0, windowWidth, windowHeight );
+
+    bool done = false;
+    while( !done )
+    {
+        SDL_Event event;
+
+        while ( SDL_PollEvent(&event) )
+        {
+            switch (event.type) {
+
+                case SDL_MOUSEMOTION:
+                    viewer.getEventQueue()->mouseMotion(event.motion.x, event.motion.y);
+                    break;
+
+                case SDL_MOUSEBUTTONDOWN:
+                    viewer.getEventQueue()->mouseButtonPress(event.button.x, event.button.y, event.button.button);
+                    break;
+
+                case SDL_MOUSEBUTTONUP:
+                    viewer.getEventQueue()->mouseButtonRelease(event.button.x, event.button.y, event.button.button);
+                    break;
+
+                case SDL_KEYUP:
+                    viewer.getEventQueue()->keyRelease( (osgGA::GUIEventAdapter::KeySymbol) event.key.keysym.unicode);
+
+                    if (event.key.keysym.sym==SDLK_ESCAPE) done = true;
+                    if (event.key.keysym.sym=='f') SDL_WM_ToggleFullScreen(screen);
+
+                    break;
+
+                case SDL_KEYDOWN:
+                    viewer.getEventQueue()->keyPress( (osgGA::GUIEventAdapter::KeySymbol) event.key.keysym.unicode);
+                    break;
+
+                case SDL_VIDEORESIZE:
+                {
+                    viewer.getEventQueue()->windowResize(0, 0, event.resize.w, event.resize.h );
+
+                    std::cout<<"event.resize.w="<<event.resize.w<<"  event.resize.h="<<event.resize.h<<std::endl;
+                    break;
+                }
+
+                case SDL_QUIT:
+                    done = true;
+            }
+        }
+
+        if (done) continue;
+
+
+        // draw the new frame
+        viewer.frame();
+
+    	// Swap Buffers
+        SDL_GL_SwapBuffers();
+    }
+   
+    return 0;
+}
+
+/*EOF*/