def sub_CC_C(gen,t,srcs):
dst = ColorArg(
gen.emit_binop('-',parts(0,srcs), Float),
gen.emit_binop('-',parts(1,srcs), Float),
gen.emit_binop('-',parts(2,srcs), Float),
gen.emit_binop('-',parts(3,srcs), Float))
return dst
def mergemultiply_CC_C(gen,t,srcs):
(a,b) = (srcs[0],srcs[1])
return ColorArg(
gen.emit_binop('*', [ a.parts[0], b.parts[0]], Float),
gen.emit_binop('*', [ a.parts[1], b.parts[1]], Float),
gen.emit_binop('*', [ a.parts[2], b.parts[2]], Float),
b.parts[3])
def add_CC_C(gen,t,srcs):
# add 2 colors, piecewise
dst = ColorArg(
gen.emit_binop('+',parts(0,srcs), Float),
gen.emit_binop('+',parts(1,srcs), Float),
gen.emit_binop('+',parts(2,srcs), Float),
gen.emit_binop('+',parts(3,srcs), Float))
return dst
def clamp_C_C(gen,t,srcs):
# ensure color C is in the range [0.0,1.0]
dst = ColorArg(
clamp_f_f(gen,t,parts(0,srcs)),
clamp_f_f(gen,t,parts(1,srcs)),
clamp_f_f(gen,t,parts(2,srcs)),
clamp_f_f(gen,t,parts(3,srcs)))
return dst
def gradient_Gf_C(gen,t,srcs):
[d1,d2,d3] = gen.emit_func2_3("gradient", srcs, Float)
# fixme get alpha from gradient
return ColorArg(d1,d2,d3,ConstFloatArg(1.0))
def rgba_ffff_C(gen,t,srcs):
return ColorArg(srcs[0], srcs[1], srcs[2], srcs[3])
def hsv_fff_C(gen,t,srcs):
[d1,d2,d3] = gen.emit_func3_3("hsv_to_rgb", srcs, Float)
return ColorArg(d1,d2,d3,ConstFloatArg(1.0))
def hsla_ffff_C(gen,t,srcs):
[d1,d2,d3] = gen.emit_func3_3("hsl_to_rgb", srcs, Float)
return ColorArg(d1,d2,d3,srcs[3])
def rgb_fff_C(gen,t,srcs):
return ColorArg(srcs[0], srcs[1], srcs[2], ConstFloatArg(1.0))
def _image_Ic_C(gen,t,srcs):
c = srcs[1]
[d1,d2,d3] = gen.emit_func3_3("image_lookup", [srcs[0], c.re, c.im], Float)
return ColorArg(d1,d2,d3,ConstFloatArg(1.0))