mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2024-11-14 17:01:22 +00:00
132 lines
4.3 KiB
Python
132 lines
4.3 KiB
Python
print("""// types are encoded as ubf where:
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// u = 0: signed, u = 1: unsigned
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// b = 0: 32-bit, b = 1: 64-bit
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// f = 0: int, f = 1: float/double
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// unsigned float/double is interpreted as bool
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// width is ww where:
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// ww = 00: 1 component
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// ww = 01: 2 components
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// ww = 10: 3 components
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// ww = 11: 4 components
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// full conversion code is wwsssddd where:
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// ww = width
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// sss = src type
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// ddd = dst type
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// case values are in octal
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""")
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types = [
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"int",
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"float",
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"long",
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"double",
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"uint",
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"int", # 32-bit bool
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"ulong",
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"long", # 64-bit bool
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]
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#does not include size (2 or 4, 3 is special)
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vec_types = [
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"ivec",
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"vec",
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"lvec",
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"dvec",
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"uivec",
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"ivec", # 32-bit bool
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"ulvec",
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"lvec", # 64-bit bool
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]
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convert_matrix = [
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#i f l d ui b ul B
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[0, 1, 1, 1, 0, 3, 1, 3], # i
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[1, 0, 1, 1, 1, 3, 1, 3], # f
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[1, 1, 0, 1, 1, 3, 0, 3], # l
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[1, 1, 1, 0, 1, 3, 1, 3], # d
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[0, 1, 1, 1, 0, 3, 1, 3], # ui
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[2, 2, 2, 2, 2, 0, 2, 3], # 32-bit bool
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[1, 1, 0, 1, 1, 3, 0, 3], # ul
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[2, 2, 2, 2, 2, 3, 2, 0], # 64-bit bool
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]
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def case_str(width, src_type, dst_type):
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case = (width << 6) | (src_type << 3) | (dst_type)
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return f"case {case:04o}:"
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#FIXME look into using gcc's __builtin_convertvector
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def cast_str(width, src_type, dst_type):
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if width & 1:
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return f"(pr_{vec_types[dst_type]}{width+1}_t)"
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else:
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return f"(pr_{types[dst_type]}_t)"
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def src_str(width, src_type, dst_type):
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if width & 1:
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return f"OPA({vec_types[src_type]}{width+1})"
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else:
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return f"OPA({types[src_type]})"
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def dst_str(width, src_type, dst_type):
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if width & 1:
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return f"OPC({vec_types[dst_type]}{width+1})"
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else:
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return f"OPC({types[dst_type]})"
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def zero_str(width, src_type):
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ones = "{%s}" % (", ".join(["0"] * (width + 1)))
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return f"{cast_str(width, src_type, src_type)} {ones}"
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def one_str(width, src_type):
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ones = "{%s}" % (", ".join(["1"] * (width + 1)))
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return f"{cast_str(width, src_type, src_type)} {ones}"
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def expand_str(width, src, pref=""):
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src = [f"{pref}{src}[{i}]" for i in range(width + 1)]
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return "{%s}" % (", ".join(src));
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for width in range(4):
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for src_type in range(8):
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for dst_type in range(8):
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case = case_str(width, src_type, dst_type)
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cast = cast_str(width, src_type, dst_type)
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src = src_str(width, src_type, dst_type)
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dst = dst_str(width, src_type, dst_type)
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mode = convert_matrix[src_type][dst_type]
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if mode == 0:
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if dst_type & 2 != src_type & 2:
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continue
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if dst_type & 2:
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src = src_str(width, 2, 2)
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dst = dst_str(width, 2, 2)
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else:
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src = src_str(width, 0, 0)
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dst = dst_str(width, 0, 0)
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if width == 2:
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print(f"{case} VectorCopy(&{src},&{dst}); break;")
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else:
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print(f"{case} {dst} = {src}; break;")
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elif mode == 1:
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if width == 0:
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print(f"{case} {dst} = {cast} {src}; break;")
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elif width == 2:
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print(f"{case} VectorCompUop(&{dst},{cast},&{src}); break;")
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else:
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expand = expand_str(width, src)
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print(f"{case} {dst} = {cast} {expand}; break;")
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elif mode == 2:
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one = one_str(width, src_type)
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if width == 0:
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print(f"{case} {dst} = !!{src}; break;")
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elif width == 2:
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print(f"{case} VectorCompUop(&{dst},!!,&{src}); break;")
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else:
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expand = expand_str(width, src, "!!")
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print(f"{case} {dst} = {cast} {expand}; break;")
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elif mode == 3:
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zero = zero_str(width, src_type)
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if width == 0:
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print(f"{case} {dst} = -!!{src}; break;")
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elif width == 2:
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print(f"{case} VectorCompUop(&{dst},-!!,&{src}); break;")
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else:
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expand = expand_str(width, src, "-!!")
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print(f"{case} {dst} = {cast} {expand}; break;")
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