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-rwxr-xr-xindra/llimage/llimage.cpp66
-rwxr-xr-xindra/llimage/llimage.h10
-rwxr-xr-xindra/llimage/llimagepng.cpp4
-rwxr-xr-xindra/llimage/llpngwrapper.cpp9
-rwxr-xr-xindra/llimage/llpngwrapper.h3
5 files changed, 32 insertions, 60 deletions
diff --git a/indra/llimage/llimage.cpp b/indra/llimage/llimage.cpp
index d336eeaabc..eaac6806ab 100755
--- a/indra/llimage/llimage.cpp
+++ b/indra/llimage/llimage.cpp
@@ -524,7 +524,7 @@ inline U8 LLImageRaw::fastFractionalMult( U8 a, U8 b )
}
-void LLImageRaw::composite( LLImageRaw* src )
+void LLImageRaw::composite( const LLImageRaw* src )
{
LLImageRaw* dst = this; // Just for clarity.
@@ -560,7 +560,7 @@ void LLImageRaw::composite( LLImageRaw* src )
}
// Src and dst can be any size. Src has 4 components. Dst has 3 components.
-void LLImageRaw::compositeScaled4onto3(LLImageRaw* src)
+void LLImageRaw::compositeScaled4onto3(const LLImageRaw* src)
{
LL_INFOS() << "compositeScaled4onto3" << LL_ENDL;
@@ -568,26 +568,12 @@ void LLImageRaw::compositeScaled4onto3(LLImageRaw* src)
llassert( (4 == src->getComponents()) && (3 == dst->getComponents()) );
- S32 temp_data_size = src->getWidth() * dst->getHeight() * src->getComponents();
- llassert_always(temp_data_size > 0);
- std::vector<U8> temp_buffer(temp_data_size);
-
- // Vertical: scale but no composite
- for( S32 col = 0; col < src->getWidth(); col++ )
- {
- copyLineScaled( src->getData() + (src->getComponents() * col), &temp_buffer[0] + (src->getComponents() * col), src->getHeight(), dst->getHeight(), src->getWidth(), src->getWidth() );
- }
-
- // Horizontal: scale and composite
- for( S32 row = 0; row < dst->getHeight(); row++ )
- {
- compositeRowScaled4onto3( &temp_buffer[0] + (src->getComponents() * src->getWidth() * row), dst->getData() + (dst->getComponents() * dst->getWidth() * row), src->getWidth(), dst->getWidth() );
- }
+ ll_nn2d_interpolation(src->getData(), src->getWidth(), src->getHeight(), src->getComponents(), dst->getData(), dst->getWidth(), dst->getHeight(), dst->getComponents());
}
// Src and dst are same size. Src has 4 components. Dst has 3 components.
-void LLImageRaw::compositeUnscaled4onto3( LLImageRaw* src )
+void LLImageRaw::compositeUnscaled4onto3( const LLImageRaw* src )
{
/*
//test fastFractionalMult()
@@ -610,7 +596,7 @@ void LLImageRaw::compositeUnscaled4onto3( LLImageRaw* src )
llassert( (src->getWidth() == dst->getWidth()) && (src->getHeight() == dst->getHeight()) );
- U8* src_data = src->getData();
+ const U8* src_data = src->getData();
U8* dst_data = dst->getData();
S32 pixels = getWidth() * getHeight();
while( pixels-- )
@@ -751,7 +737,7 @@ void LLImageRaw::copy(LLImageRaw* src)
}
// Src and dst are same size. Src and dst have same number of components.
-void LLImageRaw::copyUnscaled(LLImageRaw* src)
+void LLImageRaw::copyUnscaled(const LLImageRaw* src)
{
LLImageRaw* dst = this; // Just for clarity.
@@ -833,7 +819,7 @@ void LLImageRaw::copyUnscaled3onto4( LLImageRaw* src )
// Src and dst can be any size. Src and dst have same number of components.
-void LLImageRaw::copyScaled( LLImageRaw* src )
+void LLImageRaw::copyScaled( const LLImageRaw* src )
{
LLImageRaw* dst = this; // Just for clarity.
@@ -846,21 +832,7 @@ void LLImageRaw::copyScaled( LLImageRaw* src )
return;
}
- S32 temp_data_size = src->getWidth() * dst->getHeight() * getComponents();
- llassert_always(temp_data_size > 0);
- std::vector<U8> temp_buffer(temp_data_size);
-
- // Vertical
- for( S32 col = 0; col < src->getWidth(); col++ )
- {
- copyLineScaled( src->getData() + (getComponents() * col), &temp_buffer[0] + (getComponents() * col), src->getHeight(), dst->getHeight(), src->getWidth(), src->getWidth() );
- }
-
- // Horizontal
- for( S32 row = 0; row < dst->getHeight(); row++ )
- {
- copyLineScaled( &temp_buffer[0] + (getComponents() * src->getWidth() * row), dst->getData() + (getComponents() * dst->getWidth() * row), src->getWidth(), dst->getWidth(), 1, 1 );
- }
+ ll_nn2d_interpolation(src->getData(), src->getWidth(), src->getHeight(), src->getComponents(), dst->getData(), dst->getWidth(), dst->getHeight(), dst->getComponents());
}
@@ -880,25 +852,17 @@ BOOL LLImageRaw::scale( S32 new_width, S32 new_height, BOOL scale_image_data )
if (scale_image_data)
{
- S32 temp_data_size = old_width * new_height * getComponents();
- llassert_always(temp_data_size > 0);
- std::vector<U8> temp_buffer(temp_data_size);
+ S32 new_data_size = new_width * new_height * getComponents();
+ llassert_always(new_data_size > 0);
- // Vertical
- for( S32 col = 0; col < old_width; col++ )
+ U8 *new_data = (U8*)ALLOCATE_MEM(LLImageBase::getPrivatePool(), new_data_size);
+ if(NULL == new_data)
{
- copyLineScaled( getData() + (getComponents() * col), &temp_buffer[0] + (getComponents() * col), old_height, new_height, old_width, old_width );
+ return FALSE;
}
- deleteData();
-
- U8* new_buffer = allocateDataSize(new_width, new_height, getComponents());
-
- // Horizontal
- for( S32 row = 0; row < new_height; row++ )
- {
- copyLineScaled( &temp_buffer[0] + (getComponents() * old_width * row), new_buffer + (getComponents() * new_width * row), old_width, new_width, 1, 1 );
- }
+ ll_nn2d_interpolation(getData(), old_width, old_height, getComponents(), new_data, new_width, new_height, getComponents());
+ setDataAndSize(new_data, new_width, new_height, getComponents());
}
else
{
diff --git a/indra/llimage/llimage.h b/indra/llimage/llimage.h
index cd3f76f1fd..eeb8e6de53 100755
--- a/indra/llimage/llimage.h
+++ b/indra/llimage/llimage.h
@@ -229,7 +229,7 @@ public:
void copy( LLImageRaw* src );
// Src and dst are same size. Src and dst have same number of components.
- void copyUnscaled( LLImageRaw* src );
+ void copyUnscaled( const LLImageRaw* src );
// Src and dst are same size. Src has 4 components. Dst has 3 components.
void copyUnscaled4onto3( LLImageRaw* src );
@@ -243,7 +243,7 @@ public:
void copyUnscaledAlphaMask( LLImageRaw* src, const LLColor4U& fill);
// Src and dst can be any size. Src and dst have same number of components.
- void copyScaled( LLImageRaw* src );
+ void copyScaled( const LLImageRaw* src );
// Src and dst can be any size. Src has 3 components. Dst has 4 components.
void copyScaled3onto4( LLImageRaw* src );
@@ -255,13 +255,13 @@ public:
// Composite operations
// Src and dst can be any size. Src and dst can each have 3 or 4 components.
- void composite( LLImageRaw* src );
+ void composite( const LLImageRaw* src );
// Src and dst can be any size. Src has 4 components. Dst has 3 components.
- void compositeScaled4onto3( LLImageRaw* src );
+ void compositeScaled4onto3( const LLImageRaw* src );
// Src and dst are same size. Src has 4 components. Dst has 3 components.
- void compositeUnscaled4onto3( LLImageRaw* src );
+ void compositeUnscaled4onto3( const LLImageRaw* src );
protected:
// Create an image from a local file (generally used in tools)
diff --git a/indra/llimage/llimagepng.cpp b/indra/llimage/llimagepng.cpp
index 294f68b122..7735dc1379 100755
--- a/indra/llimage/llimagepng.cpp
+++ b/indra/llimage/llimagepng.cpp
@@ -67,7 +67,7 @@ BOOL LLImagePNG::updateData()
}
LLPngWrapper::ImageInfo infop;
- if (! pngWrapper.readPng(getData(), NULL, &infop))
+ if (! pngWrapper.readPng(getData(), getDataSize(), NULL, &infop))
{
setLastError(pngWrapper.getErrorMessage());
return FALSE;
@@ -102,7 +102,7 @@ BOOL LLImagePNG::decode(LLImageRaw* raw_image, F32 decode_time)
return FALSE;
}
- if (! pngWrapper.readPng(getData(), raw_image))
+ if (! pngWrapper.readPng(getData(), getDataSize(), raw_image))
{
setLastError(pngWrapper.getErrorMessage());
return FALSE;
diff --git a/indra/llimage/llpngwrapper.cpp b/indra/llimage/llpngwrapper.cpp
index 2cc7d3c460..aad139f570 100755
--- a/indra/llimage/llpngwrapper.cpp
+++ b/indra/llimage/llpngwrapper.cpp
@@ -87,6 +87,12 @@ void LLPngWrapper::errorHandler(png_structp png_ptr, png_const_charp msg)
void LLPngWrapper::readDataCallback(png_structp png_ptr, png_bytep dest, png_size_t length)
{
PngDataInfo *dataInfo = (PngDataInfo *) png_get_io_ptr(png_ptr);
+ if(dataInfo->mOffset + length > dataInfo->mDataSize)
+ {
+ png_error(png_ptr, "Data read error. Requested data size exceeds available data size.");
+ return;
+ }
+
U8 *src = &dataInfo->mData[dataInfo->mOffset];
memcpy(dest, src, length);
dataInfo->mOffset += static_cast<U32>(length);
@@ -114,7 +120,7 @@ void LLPngWrapper::writeFlush(png_structp png_ptr)
// The scanline also begins at the bottom of
// the image (per SecondLife conventions) instead of at the top, so we
// must assign row-pointers in "reverse" order.
-BOOL LLPngWrapper::readPng(U8* src, LLImageRaw* rawImage, ImageInfo *infop)
+BOOL LLPngWrapper::readPng(U8* src, S32 dataSize, LLImageRaw* rawImage, ImageInfo *infop)
{
try
{
@@ -133,6 +139,7 @@ BOOL LLPngWrapper::readPng(U8* src, LLImageRaw* rawImage, ImageInfo *infop)
PngDataInfo dataPtr;
dataPtr.mData = src;
dataPtr.mOffset = 0;
+ dataPtr.mDataSize = dataSize;
png_set_read_fn(mReadPngPtr, &dataPtr, &readDataCallback);
png_set_sig_bytes(mReadPngPtr, 0);
diff --git a/indra/llimage/llpngwrapper.h b/indra/llimage/llpngwrapper.h
index 739f435996..27d7df3bef 100755
--- a/indra/llimage/llpngwrapper.h
+++ b/indra/llimage/llpngwrapper.h
@@ -44,7 +44,7 @@ public:
};
BOOL isValidPng(U8* src);
- BOOL readPng(U8* src, LLImageRaw* rawImage, ImageInfo *infop = NULL);
+ BOOL readPng(U8* src, S32 dataSize, LLImageRaw* rawImage, ImageInfo *infop = NULL);
BOOL writePng(const LLImageRaw* rawImage, U8* dst);
U32 getFinalSize();
const std::string& getErrorMessage();
@@ -61,6 +61,7 @@ private:
{
U8 *mData;
U32 mOffset;
+ S32 mDataSize;
};
static void writeFlush(png_structp png_ptr);
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-31 23:13:02 +0000