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Changed mip-map handling to use mip/lod levels rather than maximum dimensions of the lod.
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This commit is contained in:
Kearwood Gilbert
2026-03-17 00:03:12 -07:00
parent d1299ccc13
commit d652d747a2
22 changed files with 150 additions and 241 deletions
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50
kraken/resources/texture/KRTextureKTX.cpp
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@@ -82,8 +82,7 @@ KRTextureKTX::KRTextureKTX(KRContext& context, Block* data, std::string name) :
}
}
m_max_lod_max_dim = KRMAX(m_header.pixelWidth, m_header.pixelHeight);
m_min_lod_max_dim = KRMAX(width, height);
m_lod_count = (int)KRMAX(m_header.numberOfMipmapLevels, 1) - 1;
}
KRTextureKTX::KRTextureKTX(KRContext& context, std::string name, unsigned int internal_format, unsigned int base_internal_format, int width, int height, const std::list<Block*>& blocks) : KRTexture2D(context, new Block(), name)
@@ -361,59 +360,43 @@ VkFormat KRTextureKTX::getFormat() const
}
}
long KRTextureKTX::getMemRequiredForSize(int max_dim)
long KRTextureKTX::getMemRequiredForLod(int lod)
{
int target_dim = max_dim;
if (target_dim < (int)m_min_lod_max_dim) target_dim = target_dim;
// Determine how much memory will be consumed
int width = m_header.pixelWidth;
int height = m_header.pixelHeight;
long memoryRequired = 0;
int level = 0;
for (std::list<Block*>::iterator itr = m_blocks.begin(); itr != m_blocks.end(); itr++) {
Block* block = *itr;
if (width <= target_dim && height <= target_dim) {
if (level >= lod) {
memoryRequired += (long)block->getSize();
}
width = width >> 1;
if (width < 1) {
width = 1;
}
height = height >> 1;
if (height < 1) {
height = 1;
}
level++;
}
return memoryRequired;
}
bool KRTextureKTX::getLodData(void* buffer, int lod_max_dim)
bool KRTextureKTX::getLodData(void* buffer, int lod)
{
unsigned char* converted_image = (unsigned char*)buffer;
int target_dim = lod_max_dim;
if (target_dim < (int)m_min_lod_max_dim) target_dim = m_min_lod_max_dim;
int target_lod = KRMIN(lod, m_lod_count);
if (m_blocks.size() == 0) {
return false;
}
// Determine how much memory will be consumed
int width = m_header.pixelWidth;
int height = m_header.pixelHeight;
long memoryRequired = 0;
long memoryTransferred = 0;
// Upload texture data
int destination_level = 0;
int source_level = 0;
int level = 0;
for (std::list<Block*>::iterator itr = m_blocks.begin(); itr != m_blocks.end(); itr++) {
Block* block = *itr;
if (width <= target_dim && height <= target_dim) {
if (level >= target_lod) {
/*
if (width > current_lod_max_dim) {
@@ -440,22 +423,9 @@ bool KRTextureKTX::getLodData(void* buffer, int lod_max_dim)
// return false;
// }
//
destination_level++;
}
if (width <= m_current_lod_max_dim && height <= m_current_lod_max_dim) {
source_level++;
}
width = width >> 1;
if (width < 1) {
width = 1;
}
height = height >> 1;
if (height < 1) {
height = 1;
}
level++;
}
return true;