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Fix ASTC partition bug

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This commit is contained in:
Ishotihadus
2018-01-15 23:22:50 +09:00
parent cb0ca77c9b
commit afd776e836
1 changed files with 13 additions and 17 deletions
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lib/mikunyan/decoders/astc_block_decoder.rb
+4 -8
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@@ -345,12 +345,9 @@ module Mikunyan
sh.reverse! if seed & 1 == 0 sh.reverse! if seed & 1 == 0
seeds.map!.with_index{|e, i| e >> sh[i % 2]} seeds.map!.with_index{|e, i| e >> sh[i % 2]}
@partition = Array.new(@bw * @bh) @partition = (0...@bw * @bh).map do |i|
x = i % @bw
for y in 0...@bh y = i / @bw
for x in 0...@bw
idx = x + y * @bw
if small_block if small_block
x <<= 1 x <<= 1
y <<= 1 y <<= 1
@@ -361,8 +358,7 @@ module Mikunyan
c = @part_num < 3 ? 0 : (seeds[4] * x + seeds[5] * y + (rnum >> 6)) & 0x3f c = @part_num < 3 ? 0 : (seeds[4] * x + seeds[5] * y + (rnum >> 6)) & 0x3f
d = @part_num < 4 ? 0 : (seeds[6] * x + seeds[7] * y + (rnum >> 2)) & 0x3f d = @part_num < 4 ? 0 : (seeds[6] * x + seeds[7] * y + (rnum >> 2)) & 0x3f
@partition[idx] = 3 - [d, c, b, a].each_with_index.max[1] 3 - [d, c, b, a].each_with_index.max[1]
end
end end
end end
end end