Removes most of the engine-defined intermediates surfaces that were used to achieve transitions and that were, because 2D acceleration changes, the new bottleneck of the draw system.
A concept of DrawProxy is introduced, which controls how surfaces are drawn. These allow to merge all drawing paths, including shaders.
At the price of some uglyness in Shader::draw, we gain full constness in Drawable::draw... can be debated.
Removes most of the engine-defined intermediates surfaces that were used to achieve transitions and that were, because 2D acceleration changes, the new bottleneck of the draw system.
A concept of DrawProxy is introduced, which controls how surfaces are drawn. These allow to merge all drawing paths, including shaders.
At the price of some uglyness in Shader::draw, we gain full constness in Drawable::draw... can be debated.