I missed a register mask in the move to share the shader_hw_def()
function between pixel and vertex shaders for ARB shaders. Fixed
that, and made the GLSL version use the same mask for consistency.
- Based on comments from H. Verbeet
- Changed the distinction from .rgba & .xyzw masks to only use .xyzw
in GLSL shaders. They are interchangeable, and only served to make
the trace look more intuitive, but they don't always apply as-is, so
we'll just leave everything to .xyzw.
- Got rid of the "UseProgramObjectARB(0)" call in drawprim. If there
is no shader set on the next primitive, then that primitive will
call UseProgramObjectARB(0) when it begins to draw.
- Add a new file glsl_shader.c which contains almost every GLSL specific function we'll need
- Move print_glsl_info() into glsl_shader.c
- Move the shader_reg_maps struct info into the private header, and make it part of SHADER_OPCODE_ARG.
- Create a new shared ps/vs register map for float constants (future patch will make ARB programs use this, too)