Add Geometries (replaces Quads).

A Geometry is a collection of vertices describing a non self-intersecting
(simple) polygon. In addition to screen coordinates, the vertices have
attributes for texture coordinates (s,t) and color (r,g,b,a).

It can be used as a quad, to display distorted images, or anything in between.

Added:
^^^^^^

-- geometry from table, where table has the format:
-- info = {
-- {x,y, s,t, [r = 255, g = 255, b = 255, a = 255]}
-- {x,y, s,t, [r = 255, g = 255, b = 255, a = 255]}
-- ...
-- }
geom = love.graphics.newGeometry(info)

-- convenience wrapper for quads (same as before)
geom = love.graphics.newQuad(x,y, w,h, sw,sh)

-- retrieve vertex i (1-indexed)
x,y,s,t,r,g,b,a = geom:getVertex(i)

-- set vertex i (1-indexed)
geom:setVertex(i, x,y, s,t, [r,g,b,a])

-- flip geometry
geom:flip(x, y)


Renamed:
^^^^^^^^

love.graphics.drawq() -> love.graphics.drawg()


Removed:
^^^^^^^^

quad:setViewport()
quad:getViewport()

src/modules/graphics/DrawGable.h

@@ -0,0 +1,65 @@
+/**
+ * Copyright (c) 2006-2013 LOVE Development Team
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty.  In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ *    claim that you wrote the original software. If you use this software
+ *    in a product, an acknowledgment in the product documentation would be
+ *    appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ *    misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ **/
+
+#ifndef LOVE_GRAPHICS_DRAWGABLE_H
+#define LOVE_GRAPHICS_DRAWGABLE_H
+
+// LOVE
+#include "Drawable.h"
+#include "Geometry.h"
+
+namespace love
+{
+namespace graphics
+{
+
+/**
+ * A DrawGable is anything that be drawn in part with a Geometry object.
+ **/
+class DrawGable : public Drawable
+{
+public:
+
+	/**
+	 * Destructor.
+	 **/
+	virtual ~DrawGable();
+
+	/**
+	 * Draws the object with the specified transformation.
+	 *
+	 * @param geom The Geometry object to use to draw the object.
+	 * @param x The position of the object along the x-axis.
+	 * @param y The position of the object along the y-axis.
+	 * @param angle The angle of the object (in radians).
+	 * @param sx The scale factor along the x-axis.
+	 * @param sy The scale factor along the y-axis.
+	 * @param ox The origin offset along the x-axis.
+	 * @param oy The origin offset along the y-axis.
+	 * @param kx Shear along the x-axis.
+	 * @param ky Shear along the y-axis.
+	 **/
+	virtual void drawg(Geometry *geom, float x, float y, float angle, float sx, float sy, float ox, float oy, float kx, float ky) const = 0;
+};
+
+} // graphics
+} // love
+
+#endif // LOVE_GRAPHICS_DRAWGABLE_H