add initial SDL/OpenGL template

.gitignore

@@ -0,0 +1 @@
+/ftgl_testing

Makefile

@@ -0,0 +1,22 @@
+FILE := ftgl_testing
+TARGET := $(FILE)
+
+CXXFLAGS := $(shell sdl2-config --cflags) $(shell freetype-config --cflags)
+ifdef WIN32
+LIBS := -lopengl32 -lglu32 -lmingw32
+CXX := mingw32-g++
+TARGET := $(TARGET).exe
+else
+LIBS := -lGL -lGLU `sdl2-config --libs`
+endif
+LIBS += -lftgl $(shell freetype-config --libs)
+LDFLAGS := $(LIBS) $(shell sdl2-config --libs)
+
+
+all:	$(TARGET)
+
+$(TARGET): $(FILE).cc
+	$(CXX) -o $(TARGET) $(CXXFLAGS) $< $(LDFLAGS)
+
+clean:
+	-rm -f $(TARGET) *~ *.o

ftgl_testing.cc

@@ -0,0 +1,75 @@
+#include <FTGL/ftgl.h>
+#include <SDL2/SDL.h>
+#include <GL/gl.h>
+#include <GL/glu.h>
+
+#define WIDTH   500
+#define HEIGHT  500
+
+void init(void)
+{
+    glViewport(0, 0, WIDTH, HEIGHT);
+    glClearColor (0.0, 0.0, 0.0, 0.0);
+    glEnable(GL_DEPTH_TEST);
+    glShadeModel(GL_FLAT);
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    gluPerspective(60.0, (GLfloat)WIDTH/(GLfloat)WIDTH, 1.0, 30.0);
+    glMatrixMode(GL_MODELVIEW);
+    glLoadIdentity();
+    glTranslatef(0.0, 0.0, -3.6);
+}
+
+void display(SDL_Window * window)
+{
+    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+    glBegin(GL_QUADS);
+        glVertex3f(-2.0, -1.0, 0.0);
+        glVertex3f(-2.0, 1.0, 0.0);
+        glVertex3f(0.0, 1.0, 0.0);
+        glVertex3f(0.0, -1.0, 0.0);
+    glEnd();
+    SDL_GL_SwapWindow(window);
+}
+
+int main(int argc, char *argv[])
+{
+    if (SDL_Init(SDL_INIT_VIDEO))
+    {
+        printf("Failed to initialize SDL!\n");
+        return 1;
+    }
+
+    atexit(SDL_Quit);
+
+    SDL_Window * window = SDL_CreateWindow(argv[0],
+                                           SDL_WINDOWPOS_UNDEFINED,
+                                           SDL_WINDOWPOS_UNDEFINED,
+                                           WIDTH,
+                                           HEIGHT,
+                                           SDL_WINDOW_OPENGL);
+    if (!window)
+    {
+        printf("Failed to create window!\n");
+        SDL_Quit();
+        return 2;
+    }
+
+    SDL_GLContext gl_context = SDL_GL_CreateContext(window);
+
+    init();
+    display(window);
+    SDL_Event event;
+    while (SDL_WaitEvent(&event))
+    {
+        if (event.type == SDL_QUIT)
+            break;
+        else if (event.type == SDL_KEYDOWN)
+        {
+            if (event.key.keysym.sym == SDLK_ESCAPE)
+                break;
+            if (event.key.keysym.sym == SDLK_RETURN)
+                display(window);
+        }
+    }
+}