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check max mipmap level for texture creation #16783

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check max mipmap level for texture creation #16783

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3 changes: 2 additions & 1 deletion native/cocos/renderer/gfx-validator/TextureValidator.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -104,7 +104,8 @@ void TextureValidator::doInit(const TextureInfo &info) {
}

if (hasFlag(info.flags, TextureFlagBit::GEN_MIPMAP)) {
CC_ASSERT(info.levelCount > 1);
auto maxLevelCount = std::floor(std::log2(std::max({ info.width, info.height, info.depth }))) + 1;
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I think don't have to +1 for some situations, for example std::max({ info.width, info.height, info.depth }) == 8.

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check here:

cocos-engine/native/cocos/renderer/gfx-base/GFXTexture.cpp

Lines 84 to 86 in cde48d1

uint32_t getLevelCount(uint32_t width, uint32_t height) {
return static_cast<uint32_t>(std::floor(std::log2(std::max(width, height)))) + 1;
}

and this method actually could be moved to somewhere for common use.

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Got it, I think it is better to use _actor->getLevelCount() to get the value. And we may fix the logic of _actor->getLevelCount() in future.

CC_ASSERT(info.levelCount > 1 && info.levelCount <= maxLevelCount);

bool isCompressed = GFX_FORMAT_INFOS[static_cast<int>(info.format)].isCompressed;
CC_ASSERT(!isCompressed);
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