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Huffman encoder fixes for very large streams

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Allowing Huffman decoder to use different fast bits table sizes
Adding NV and AMD BC1 decoders
This commit is contained in:
richgel999
2020-05-05 23:10:21 -04:00
parent bb64ec604c
commit a1689504ea
6 changed files with 192 additions and 25 deletions
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6
transcoder/basisu.h
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@@ -293,7 +293,7 @@ namespace basisu
enum
{
cHuffmanMaxSupportedCodeSize = 16, cHuffmanMaxSupportedInternalCodeSize = 31,
cHuffmanFastLookupBits = 10, cHuffmanFastLookupSize = 1 << cHuffmanFastLookupBits,
cHuffmanFastLookupBits = 10,
cHuffmanMaxSymsLog2 = 14, cHuffmanMaxSyms = 1 << cHuffmanMaxSymsLog2,
// Small zero runs
@@ -341,6 +341,8 @@ namespace basisu
cETC2_R11_EAC,
cETC2_RG11_EAC,
cUASTC4x4,
cBC1_NV,
cBC1_AMD,
// Uncompressed/raw pixels
cRGBA32,
@@ -359,6 +361,8 @@ namespace basisu
case texture_format::cETC2_RGB:
case texture_format::cETC2_ALPHA:
case texture_format::cBC1:
case texture_format::cBC1_NV:
case texture_format::cBC1_AMD:
case texture_format::cBC4:
case texture_format::cPVRTC1_4_RGB:
case texture_format::cPVRTC1_4_RGBA: