shader: Cache locations of uniforms/attributes at shader compile-time.

* sly/shader.scm (<uniform>, <attribute>): New data types.
  (make-uniform, uniform?, uniform-name, uniform-location,
  make-attribute, attribute?, attribute-name, attribute-location,
  shader-program-uniforms, shader-program-attributes,
  shader-program-uniform-location, shader-program-attribute-location):
  New procedures.
  (%display-linking-error, %shader-program-linked, uniform-location,
  attribute-location): Delete procedures.
  (make-shader-program): Look up locations of uniforms/attributes.
  (load-shader-program): Add uniforms and attributes parameters.
  (load-default-shader): Specify uniforms and attributes.
  (uniform-set!): Use shader-program-uniform-location.

0 files changed, 0 insertions, 0 deletions