MAINT-4329 Backed out changeset: fd3a4d5c2cf5

2 files changed, 56 insertions, 20 deletions

diff --git a/indra/llimage/llimage.cpp b/indra/llimage/llimage.cpp
index eaac6806ab..d336eeaabc 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( const LLImageRaw* src )
+void LLImageRaw::composite( LLImageRaw* src )
 {
 	LLImageRaw* dst = this;  // Just for clarity.
 
@@ -560,7 +560,7 @@ void LLImageRaw::composite( const LLImageRaw* src )
 }
 
 // Src and dst can be any size.  Src has 4 components.  Dst has 3 components.
-void LLImageRaw::compositeScaled4onto3(const LLImageRaw* src)
+void LLImageRaw::compositeScaled4onto3(LLImageRaw* src)
 {
 	LL_INFOS() << "compositeScaled4onto3" << LL_ENDL;
 
@@ -568,12 +568,26 @@ void LLImageRaw::compositeScaled4onto3(const LLImageRaw* src)
 
 	llassert( (4 == src->getComponents()) && (3 == dst->getComponents()) );
 
-	ll_nn2d_interpolation(src->getData(), src->getWidth(), src->getHeight(), src->getComponents(), dst->getData(), dst->getWidth(), dst->getHeight(), 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() );
+	}
 }
 
 
 // Src and dst are same size.  Src has 4 components.  Dst has 3 components.
-void LLImageRaw::compositeUnscaled4onto3( const LLImageRaw* src )
+void LLImageRaw::compositeUnscaled4onto3( LLImageRaw* src )
 {
 	/*
 	//test fastFractionalMult()
@@ -596,7 +610,7 @@ void LLImageRaw::compositeUnscaled4onto3( const LLImageRaw* src )
 	llassert( (src->getWidth() == dst->getWidth()) && (src->getHeight() == dst->getHeight()) );
 
 
-	const U8* src_data = src->getData();
+	U8* src_data = src->getData();
 	U8* dst_data = dst->getData();
 	S32 pixels = getWidth() * getHeight();
 	while( pixels-- )
@@ -737,7 +751,7 @@ void LLImageRaw::copy(LLImageRaw* src)
 }
 
 // Src and dst are same size.  Src and dst have same number of components.
-void LLImageRaw::copyUnscaled(const LLImageRaw* src)
+void LLImageRaw::copyUnscaled(LLImageRaw* src)
 {
 	LLImageRaw* dst = this;  // Just for clarity.
 
@@ -819,7 +833,7 @@ void LLImageRaw::copyUnscaled3onto4( LLImageRaw* src )
 
 
 // Src and dst can be any size.  Src and dst have same number of components.
-void LLImageRaw::copyScaled( const LLImageRaw* src )
+void LLImageRaw::copyScaled( LLImageRaw* src )
 {
 	LLImageRaw* dst = this;  // Just for clarity.
 
@@ -832,7 +846,21 @@ void LLImageRaw::copyScaled( const LLImageRaw* src )
 		return;
 	}
 
-	ll_nn2d_interpolation(src->getData(), src->getWidth(), src->getHeight(), src->getComponents(), dst->getData(), dst->getWidth(), dst->getHeight(), dst->getComponents());
+	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 );
+	}
 }
 
 
@@ -852,17 +880,25 @@ BOOL LLImageRaw::scale( S32 new_width, S32 new_height, BOOL scale_image_data )
 
 	if (scale_image_data)
 	{
-		S32 new_data_size = new_width * new_height * getComponents();
-		llassert_always(new_data_size > 0);
+		S32 temp_data_size = old_width * new_height * getComponents();
+		llassert_always(temp_data_size > 0);
+		std::vector<U8> temp_buffer(temp_data_size);
 
-		U8 *new_data = (U8*)ALLOCATE_MEM(LLImageBase::getPrivatePool(), new_data_size); 
-		if(NULL == new_data) 
+		// Vertical
+		for( S32 col = 0; col < old_width; col++ )
 		{
-			return FALSE; 
+			copyLineScaled( getData() + (getComponents() * col), &temp_buffer[0] + (getComponents() * col), old_height, new_height, old_width, old_width );
 		}
 
-		ll_nn2d_interpolation(getData(), old_width, old_height, getComponents(), new_data, new_width, new_height, getComponents());
-		setDataAndSize(new_data, new_width, new_height, getComponents());
+		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 );
+		}
 	}
 	else
 	{
diff --git a/indra/llimage/llimage.h b/indra/llimage/llimage.h
index eeb8e6de53..cd3f76f1fd 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( const LLImageRaw* src );
+	void copyUnscaled( 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( const LLImageRaw* src );
+	void copyScaled( 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( const LLImageRaw* src );
+	void composite( LLImageRaw* src );
 
 	// Src and dst can be any size.  Src has 4 components.  Dst has 3 components.
-	void compositeScaled4onto3( const LLImageRaw* src );
+	void compositeScaled4onto3( LLImageRaw* src );
 
 	// Src and dst are same size.  Src has 4 components.  Dst has 3 components.
-	void compositeUnscaled4onto3( const LLImageRaw* src );
+	void compositeUnscaled4onto3( LLImageRaw* src );
 
 protected:
 	// Create an image from a local file (generally used in tools)