1 files changed, 37 insertions, 0 deletions
diff --git a/sdl/window.c b/sdl/window.c
new file mode 100644
index 0000000..3ecd99c
--- /dev/null
+++ b/sdl/window.c
@@ -0,0 +1,37 @@
+/* window.c
+ *
+ * Window
+ *
+ *
+ */
+
+#include <SDL/SDL.h>
+#include <SDL/SDL_image.h>
+#include <GL/glew.h>
+#include "window.h"
+
+extern const unsigned int bpp;
+
+void window_resize(int w, int h)
+{
+    printf("window: resizing to %dx%d\n", w, h);
+    GLfloat fAspect = (GLfloat) w / (GLfloat) h;
+    if (h == 0)
+        h = 1;
+    glViewport(0, 0, w, h);
+
+    /* reset coordinate system */
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+
+    /* produce the perspective projection */
+    /* void gluPerspective(GLdouble fovy, GLdouble aspect, GLdouble zNear, GLdouble zFar) */
+    gluPerspective(40.0f, fAspect, 1.0, 40.0);
+
+    glMatrixMode(GL_MODELVIEW);
+    glLoadIdentity();
+
+    /* this needs to be ran again, glut does it for you I suppose */
+    SDL_SetVideoMode(w, h, bpp, SDL_OPENGL | SDL_RESIZABLE);
+}
+