diff options
| author | Merov Linden <merov@lindenlab.com> | 2012-04-06 18:28:47 -0700 |
|---|---|---|
| committer | Merov Linden <merov@lindenlab.com> | 2012-04-06 18:28:47 -0700 |
| commit | 172b45d5a217c7cdb922f49706b310edc412fc28 (patch) | |
| tree | 4b70ee5e7bdb969548a0113dbcbdd7d835bc2952 /indra/llimage | |
| parent | bb7b5b27cedaa189aa2db6bb6b272c969923d8e2 (diff) | |
SH-3060 : Complete new byte range computation, clean up and back pedal on some changes that didn't pay of.
Diffstat (limited to 'indra/llimage')
| -rw-r--r-- | indra/llimage/llimagej2c.cpp | 11 |
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; } |