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-rw-r--r--indra/llimage/llimagej2c.cpp11
1 files changed, 4 insertions, 7 deletions
diff --git a/indra/llimage/llimagej2c.cpp b/indra/llimage/llimagej2c.cpp
index 7894de0de5..69d261c9a6 100644
--- a/indra/llimage/llimagej2c.cpp
+++ b/indra/llimage/llimagej2c.cpp
@@ -256,7 +256,7 @@ BOOL LLImageJ2C::encode(const LLImageRaw *raw_imagep, const char* comment_text,
//static
S32 LLImageJ2C::calcHeaderSizeJ2C()
{
- return HTTP_PACKET_SIZE; // Hack. just needs to be >= actual header size...
+ return FIRST_PACKET_SIZE; // Hack. just needs to be >= actual header size...
}
//static
@@ -267,7 +267,7 @@ S32 LLImageJ2C::calcDataSizeJ2C(S32 w, S32 h, S32 comp, S32 discard_level, F32 r
// in general too big for fast fetching.
// For details about the equation used here, see https://wiki.lindenlab.com/wiki/THX1138_KDU_Improvements#Byte_Range_Study
- // Estimate the number of layers. This is consistent with what's done in j2c encoding
+ // Estimate the number of layers. This is consistent with what's done for j2c encoding in LLImageJ2CKDU::encodeImpl().
S32 nb_layers = 1;
S32 surface = w*h;
S32 s = 64*64;
@@ -304,8 +304,6 @@ S32 LLImageJ2C::calcHeaderSize()
S32 LLImageJ2C::calcDataSize(S32 discard_level)
{
discard_level = llclamp(discard_level, 0, MAX_DISCARD_LEVEL);
- return calcDataSizeJ2C(getWidth(), getHeight(), getComponents(), discard_level, mRate);
- /*
if ( mAreaUsedForDataSizeCalcs != (getHeight() * getWidth())
|| (mDataSizes[0] == 0))
{
@@ -319,7 +317,6 @@ S32 LLImageJ2C::calcDataSize(S32 discard_level)
}
}
return mDataSizes[discard_level];
- */
}
S32 LLImageJ2C::calcDiscardLevelBytes(S32 bytes)
@@ -332,8 +329,8 @@ S32 LLImageJ2C::calcDiscardLevelBytes(S32 bytes)
}
while (1)
{
- S32 bytes_needed = calcDataSize(discard_level);
- if (bytes >= bytes_needed)
+ S32 bytes_needed = calcDataSize(discard_level); // virtual
+ if (bytes >= bytes_needed - (bytes_needed>>2)) // For J2c, up the res at 75% of the optimal number of bytes
{
break;
}