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Fix size estimation

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This commit is contained in:
Siana Gearz
2012-03-26 19:53:04 +02:00
parent caaba76921
commit fee59e83b8
3 changed files with 26 additions and 13 deletions
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30
indra/llimage/llimagej2c.cpp
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@@ -363,8 +363,7 @@ S32 LLImageJ2C::calcHeaderSizeJ2C()
return FIRST_PACKET_SIZE; // Hack. just needs to be >= actual header size...
}
//static
S32 LLImageJ2C::calcDataSizeJ2C(S32 w, S32 h, S32 comp, S32 discard_level, F32 rate)
static S32 cald_data_size_help(S32 w, S32 h, S32 comp, S32 discard_level, F32 rate)
{
if (rate <= 0.f) rate = .125f;
while (discard_level > 0)
@@ -376,10 +375,25 @@ S32 LLImageJ2C::calcDataSizeJ2C(S32 w, S32 h, S32 comp, S32 discard_level, F32 r
discard_level--;
}
S32 bytes = (S32)((F32)(w*h*comp)*rate);
//bytes = llmax(bytes, calcHeaderSizeJ2C());
return bytes;
}
//static
S32 LLImageJ2C::calcDataSizeJ2C(S32 w, S32 h, S32 comp, S32 discard_level, F32 rate)
{
static const LLCachedControl<F32> exponent("SianaJ2CSizeExponent", 1.0f);
static const LLCachedControl<S32> offset("SianaJ2CSizeOffset", 0);
S32 size = cald_data_size_help(w, h, comp, discard_level, rate);
S32 size_d0 = cald_data_size_help(w, h, comp, 0, rate);
llassert_always(size_d0);
S32 bytes = pow(size/size_d0, exponent)*size_d0 + offset;
bytes = llmax (0, bytes - 600);
bytes = ((bytes + (1000 - 1))/1000)*1000 + 600;
return bytes;
}
S32 LLImageJ2C::calcHeaderSize()
{
return calcHeaderSizeJ2C();
@@ -392,15 +406,7 @@ S32 LLImageJ2C::calcDataSize(S32 discard_level)
static const LLCachedControl<bool> legacy_size("SianaLegacyJ2CSize", false);
if (legacy_size) {
static const LLCachedControl<F32> exponent("SianaJ2CSizeExponent", 1.0f);
static const LLCachedControl<S32> offset("SianaJ2CSizeOffset", 0);
S32 size = calcDataSizeJ2C(getWidth(), getHeight(), getComponents(), discard_level, mRate);
S32 size_d0 = calcDataSizeJ2C(getWidth(), getHeight(), getComponents(), 0, mRate);
llassert_always(size_d0);
S32 bytes = pow(size/size_d0, exponent)*size_d0 + offset;
bytes = llmax(bytes, calcHeaderSizeJ2C());
return bytes;
return calcDataSizeJ2C(getWidth(), getHeight(), getComponents(), discard_level, mRate);
}
discard_level = llclamp(discard_level, 0, MAX_DISCARD_LEVEL);

7
indra/llimagej2coj/llimagej2coj.cpp
View File

@@ -149,7 +149,14 @@ BOOL LLImageJ2COJ::decodeImpl(LLImageJ2C &base, LLImageRaw &raw_image, F32 decod
opj_setup_decoder(dinfo, &parameters);
/* open a byte stream */
#if 0
std::vector<U8> data(base.getData(), base.getData()+base.getDataSize());
data.push_back((U8)0xFF);
data.push_back((U8)0xD9);
cio = opj_cio_open((opj_common_ptr)dinfo, &data[0], data.size());
#else
cio = opj_cio_open((opj_common_ptr)dinfo, base.getData(), base.getDataSize());
#endif
/* decode the stream and fill the image structure */
image = opj_decode(dinfo, cio);

2
indra/newview/app_settings/settings.xml
View File

@@ -287,7 +287,7 @@
<key>Type</key>
<string>F32</string>
<key>Value</key>
<real>0.5</real>
<real>1.0</real>
</map>
<key>SianaJ2CSizeOffset</key>
<map>