prepare implementation of primitives

fix includes in glcontext.c

implement edge-triggered key press/release

add dynamic reload of all shaders

refactor shader management - resolves #684

add option to enable ASan

remove pre-defined dummy textures by introducing conditional compilation for shaders

fix incorrect flip of viewport y-axis

remove the need for a second pair of texture coordinates

rename parameters of asc_set_rotation()

(0) -100 -10 tip

mercurial