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adding set_ldr_srgb_channel_weights() compression parameter API (it's no longer XUASTC/ASTC specific)

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Richard Geldreich
2026-07-03 21:40:00 -04:00
parent e79d46aadd
commit b50b394845
1 changed files with 8 additions and 2 deletions
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10
encoder/basisu_comp.h
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@@ -869,8 +869,8 @@ namespace basisu
// For non-photographic, non-sRGB or linear (normal map) content, this should be set to 1,1,1,1.
uint32_t m_xuastc_ldr_channel_weights[4];
// Set ASTC/XUASTC LDR linear or Rec 709-like channel weights. On larger ASTC/XUASTC LDR block sizes, 709-like weights make a noticeable difference in quality.
void set_xuastc_ldr_srgb_channel_weights(bool srgb_flag)
// Set ASTC/XUASTC/XUBC7 LDR linear or Rec 709-like channel weights. On larger ASTC/XUASTC LDR block sizes, 709-like weights make a noticeable difference in quality.
void set_ldr_srgb_channel_weights(bool srgb_flag)
{
if (srgb_flag)
{
@@ -888,6 +888,12 @@ namespace basisu
m_xuastc_ldr_channel_weights[3] = 1;
}
}
// Previous method to set the channel weights for ASTC/XUASTC - but now these channel weights drive other codecs like XUBC7, too.
void set_xuastc_ldr_srgb_channel_weights(bool srgb_flag)
{
set_ldr_srgb_channel_weights(srgb_flag);
}
// Enable prefiltering (slight H and/or V axis blurring) during encoding: much slower, but higher quality especially on larger block sizes with DCT enabled.
bool_param<false> m_xuastc_ldr_blurring;