Port to Win32; Move sources to src/ subdir; Use precompiled headers

src/render/renderutil.hh

@@ -0,0 +1,22 @@
+#ifndef WC3RE_RENDER_RENDERUTIL_HH__
+#define WC3RE_RENDER_RENDERUTIL_HH__
+
+#include "GlResource.hh"
+
+namespace render {
+  unsigned ilog2(unsigned in);
+
+  // Return (GL_MAX_TEXTURE_SIZE, GL_MAX_ARRAY_TEXTURE_LAYERS)
+  std::tuple<unsigned, unsigned> getGLTextureMaximums();
+
+  // call glUseProgram if program != current program
+  void useProgram(gl::GLuint program);
+
+  bool extensionSupported(std::string const& extname); 
+  
+  TextureResource create2DTexture(unsigned width, unsigned height, bool alpha, unsigned levels = 0);
+  TextureResource create2DArrayTexture(unsigned width, unsigned height, unsigned count,
+				       bool alpha, unsigned levels = 0);
+}
+
+#endif