Disallow concave shapes as geometry.

src/modules/graphics/opengl/Canvas.cpp

@@ -592,7 +592,7 @@ void Canvas::drawg(love::graphics::Geometry *geom, float x, float y, float angle
 	t.setTransformation(x, y, angle, sx, sy, ox, oy, kx, ky);
 
 	// flip texture coordinates vertically
-	size_t vcount = geom->getVertexArraySize();
+	size_t vcount = geom->getVertexCount();
 	const vertex *w = geom->getVertexArray();
 	vertex *v = new vertex[vcount];
 	for (size_t i = 0; i < vcount; ++i)
@@ -608,7 +608,7 @@ void Canvas::drawg(love::graphics::Geometry *geom, float x, float y, float angle
 		glColorPointer(4, GL_UNSIGNED_BYTE, sizeof(vertex), (GLvoid *)&v->r);
 	}
 
-	drawv(t, v, vcount, GL_TRIANGLES);
+	drawv(t, v, vcount, GL_TRIANGLE_FAN);
 
 	if (geom->hasVertexColors())
 	{

src/modules/graphics/opengl/Image.cpp

@@ -115,7 +115,7 @@ void Image::drawg(love::graphics::Geometry *geom, float x, float y, float angle,
 		glColorPointer(4, GL_UNSIGNED_BYTE, sizeof(vertex), (GLvoid *) &v[0].r);
 	}
 
-	drawv(t, v, geom->getVertexArraySize(), GL_TRIANGLES);
+	drawv(t, v, geom->getVertexCount(), GL_TRIANGLE_FAN);
 
 	if (geom->hasVertexColors())
 	{

src/modules/graphics/opengl/SpriteBatch.cpp

@@ -123,7 +123,7 @@ int SpriteBatch::addg(Geometry *geom, float x, float y, float a, float sx, float
 	if ((index == -1 && next >= size) || index < -1 || index >= next)
 		return -1;
 
-	if (geom->getNumVertices() != 4)
+	if (geom->getVertexCount() != 4)
 		throw love::Exception("Can only add quadliteral geometries to SpriteBatch");
 
 	for (size_t i = 0; i < 4; i++)

src/modules/graphics/opengl/wrap_Geometry.cpp

@@ -38,7 +38,7 @@ Geometry *luax_checkgeometry(lua_State *L, int idx)
 int w_Geometry_getVertexCount(lua_State *L)
 {
 	Geometry *geom = luax_checkgeometry(L, 1);
-	lua_pushinteger(L, geom->getNumVertices());
+	lua_pushinteger(L, geom->getVertexCount());
 	return 1;
 }