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[Impeller] ensure 1x1 has mipcount of 1#39182
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actually I think I might be misunderstanding this API, certainly asking for a mipcount of 0 is invalid - but does mipcount of 1 mean no mipping mapping? |
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Yeah, 1 just means no mipmapping. |
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Some nits but lgtm otherwise.
impeller/geometry/size.h
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| return 1u; | ||
| } | ||
| return std::max(ceil(log2(width)), ceil(log2(height))); | ||
| constexpr size_t minimumMip = 1u; |
| ASSERT_EQ((Size{128, 0}.MipCount()), 1u); | ||
| ASSERT_EQ((Size{128, -25}.MipCount()), 1u); | ||
| ASSERT_EQ((Size{-128, 25}.MipCount()), 1u); | ||
| ASSERT_EQ((Size{1, 1}.MipCount()), 1u); |
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Mip counts should always at least be 1. Perhaps also check Size{0, 0}?
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* 6a92731 [Impeller] ensure 1x1 has mipcount of 1 (flutter/engine#39182) * 55f7a09 Roll Fuchsia Linux SDK from kdjOCYzDtnfY30985... to 6c2H32X3EXOGlWIgb... (flutter/engine#39193) * 621e13c Roll Dart SDK from dcdd3fbb3116 to 2cd9b7ac95e8 (2 revisions) (flutter/engine#39185)
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* [Impeller] ensure 1x1 has mipcount of 1 * Update geometry_unittests.cc * Update size.h
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Fixes flutter/flutter#119245
Before mipcount of 1x1 image would be 0, resulting in invalid texture