[Hdrflow-svn] SF.net SVN: hdrflow: [328] trunk/lib/openlibraries/src/openimagelib/il/ utility.cpp

[<gl...@us...>]

Revision: 328
          http://hdrflow.svn.sourceforge.net/hdrflow/?rev=328&view=rev
Author:   glslang
Date:     2007-09-30 08:15:05 -0700 (Sun, 30 Sep 2007)

Log Message:
-----------
+ b8g8r8a8 to r32g32b32a32f conversion (all of this needs generalisation with swizzling support)

Modified Paths:
--------------
    trunk/lib/openlibraries/src/openimagelib/il/utility.cpp

Modified: trunk/lib/openlibraries/src/openimagelib/il/utility.cpp
===================================================================
--- trunk/lib/openlibraries/src/openimagelib/il/utility.cpp	2007-09-30 14:57:49 UTC (rev 327)
+++ trunk/lib/openlibraries/src/openimagelib/il/utility.cpp	2007-09-30 15:15:05 UTC (rev 328)
@@ -1677,6 +1677,43 @@
 	return dst_img;
 }
 
+static image_type_ptr b8g8r8a8_to_r32g32b32a32f( image_type_ptr src_img, const std::wstring &format )
+{
+	size_type width  = src_img->width( );
+	size_type height = src_img->height( );
+
+	image_type_ptr dst_img = allocate( src_img, format );
+	if( dst_img != 0 )
+	{
+		image_type::const_pointer src = ( image_type::const_pointer ) src_img->data( );
+		size_type src_pitch = src_img->pitch( );
+		float* dst = ( float* ) dst_img->data( );
+		size_type dst_pitch = dst_img->pitch( );
+
+		image_type::const_pointer sptr = src;
+		float* dptr = dst;
+
+		size_type orig_width = width;
+
+		while( height-- )
+		{
+			while( width-- )
+			{
+				*dst++ = *( src + 2 );
+				*dst++ = *( src + 1 );
+				*dst++ = *( src + 0 );
+				*dst++ = *( src + 3 );
+			}
+
+			dst = dptr += dst_pitch;
+			src = sptr += src_pitch;
+			width = orig_width;
+		}
+	}
+	
+	return dst_img;
+}
+
 inline bool is_rgb_packed( const std::wstring &pf )
 {
 	return pf == L"a8b8g8r8" || pf == L"a8r8g8b8" || pf == L"b8g8r8" || pf == L"b8g8r8a8" || pf == L"r8g8b8" || pf == L"r8g8b8a8";
@@ -1815,6 +1852,8 @@
 			return rgb_to_yuv422( src, dst_pf, 4, 2, 1, 0 );
 		else if ( dst_pf == L"yuv411" )
 			return rgb_to_yuv411( src, dst_pf, 4, 2, 1, 0 );
+		else if ( dst_pf == L"r32g32b32a32f" )
+			return b8g8r8a8_to_r32g32b32a32f( src, dst_pf );
 	}
 	else if ( src_pf == L"a8r8g8b8" )
 	{


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