Merge H-uru GIT PR356: PNG support for mipmap

MOULOpenSourceClientPlugin/Plasma20/Sources/Plasma/PubUtilLib/plGImage/plBitmap.cpp

@@ -113,7 +113,8 @@ UInt32 	plBitmap::Read( hsStream *s )
 	fFlags = s->ReadSwap16();
 	fCompressionType = s->ReadByte();
 
-	if(( fCompressionType == kUncompressed )||( fCompressionType == kJPEGCompression ))
+	if( fCompressionType == kUncompressed || fCompressionType == kJPEGCompression ||
+		fCompressionType == kPNGCompression )
 	{
 		fUncompressedInfo.fType = s->ReadByte();
 		read++;
@@ -145,7 +146,8 @@ UInt32 	plBitmap::Write( hsStream *s )
 	s->WriteSwap16( fFlags );
 	s->WriteByte( fCompressionType );
 
-	if(( fCompressionType == kUncompressed )||(fCompressionType == kJPEGCompression ))
+	if( fCompressionType == kUncompressed || fCompressionType == kJPEGCompression ||
+		fCompressionType == kPNGCompression )
 	{
 		s->WriteByte( fUncompressedInfo.fType );
 		written++;

MOULOpenSourceClientPlugin/Plasma20/Sources/Plasma/PubUtilLib/plGImage/plBitmap.h

@@ -104,7 +104,8 @@ class plBitmap : public hsKeyedObject
 		{
 			kUncompressed		= 0x0,
 			kDirectXCompression	= 0x1,
-			kJPEGCompression	= 0x2
+			kJPEGCompression    = 0x2,
+			kPNGCompression     = 0x3
 		};
 
 		struct DirectXInfo

MOULOpenSourceClientPlugin/Plasma20/Sources/Plasma/PubUtilLib/plGImage/plMipmap.cpp

@@ -60,6 +60,7 @@ You can contact Cyan Worlds, Inc. by email legal@cyan.com
 #include "../plPipeline/hsGDeviceRef.h"
 #include "plProfile.h"
 #include "../plJPEG/plJPEG.h"
+#include "plPNG.h"
 
 plProfile_CreateMemCounter("Mipmaps", "Memory", MemMipmaps);
 
@@ -122,11 +123,8 @@ void	plMipmap::Create( UInt32 width, UInt32 height, unsigned config, UInt8 numLe
 	}
 	
 	fCompressionType = compType;
-	if( compType == kUncompressed )
+	if( compType == kUncompressed || compType == kJPEGCompression ||
-	{
+		compType == kPNGCompression )
-		fUncompressedInfo.fType = format;
-	}
-	else if( compType == kJPEGCompression )
 	{
 		fUncompressedInfo.fType = format;
 	}
@@ -270,6 +268,10 @@ UInt32  plMipmap::Read( hsStream *s )
 				IReadJPEGImage( s );
 				break;
 
+			case kPNGCompression:
+				IReadPNGImage( s );
+				break;
+				
 			default:
 				hsAssert( false, "Unknown compression type in plMipmap::Read()" );
 				return totalRead;
@@ -309,6 +311,10 @@ UInt32 	plMipmap::Write( hsStream *s )
 				IWriteJPEGImage( s );
 				break;
 
+			case kPNGCompression:
+				IWritePNGImage( s );
+				break;
+
 			default:
 				hsAssert( false, "Unknown compression type in plMipmap::Read()" );
 				return totalWritten;
@@ -576,6 +582,23 @@ void plMipmap::IWriteJPEGImage( hsStream *stream )
 	delete alpha;
 }
 
+void plMipmap::IReadPNGImage(hsStream* stream)
+{
+    plMipmap* temp = NULL;
+
+    temp = plPNG::Instance().ReadFromStream(stream);
+
+    if (temp) {
+        CopyFrom(temp);
+        delete temp;
+    }
+}
+
+void plMipmap::IWritePNGImage(hsStream* stream)
+{
+    plPNG::Instance().WriteToStream(stream, this);
+}
+
 //// GetLevelSize /////////////////////////////////////////////////////////////
 //	Get the size of a single mipmap level (0 is the largest)
 
@@ -613,6 +636,7 @@ void	plMipmap::IBuildLevelSizes()
 
 			case kUncompressed:
 			case kJPEGCompression:
+			case kPNGCompression:
 				fLevelSizes[ level ] = height * rowBytes;
 				break;
 
@@ -1586,6 +1610,7 @@ void	plMipmap::CopyFrom( const plMipmap *source )
 			break;
 		case kUncompressed:
 		case kJPEGCompression:
+		case kPNGCompression:
 			fUncompressedInfo.fType = source->fUncompressedInfo.fType;
 			break;
 		default:

MOULOpenSourceClientPlugin/Plasma20/Sources/Plasma/PubUtilLib/plGImage/plMipmap.h

@@ -310,6 +310,8 @@ class plMipmap : public plBitmap
 		void	IWriteRLEImage( hsStream *stream, plMipmap *mipmap );
 		void	IReadJPEGImage( hsStream *stream );
 		void	IWriteJPEGImage( hsStream *stream );
+		void    IReadPNGImage( hsStream *stream );
+		void    IWritePNGImage( hsStream *stream );
 		void	IBuildLevelSizes();
 
 		void	IColorLevel( UInt8 level, const UInt8 *colorMask );