Implement lossless crop feature from jpeg v7 and v8


git-svn-id: svn+ssh://svn.code.sf.net/p/libjpeg-turbo/code/trunk@243 632fc199-4ca6-4c93-a231-07263d6284db
diff --git a/jpegcomp.h b/jpegcomp.h
index be5eb34..1b9e0a4 100644
--- a/jpegcomp.h
+++ b/jpegcomp.h
@@ -12,7 +12,15 @@
 #if JPEG_LIB_VERSION >= 70
 #define _DCT_scaled_size DCT_h_scaled_size
 #define _min_DCT_scaled_size min_DCT_h_scaled_size
+#define _min_DCT_h_scaled_size min_DCT_h_scaled_size
+#define _min_DCT_v_scaled_size min_DCT_v_scaled_size
+#define _jpeg_width jpeg_width
+#define _jpeg_height jpeg_height
 #else
 #define _DCT_scaled_size DCT_scaled_size
 #define _min_DCT_scaled_size min_DCT_scaled_size
+#define _min_DCT_h_scaled_size min_DCT_scaled_size
+#define _min_DCT_v_scaled_size min_DCT_scaled_size
+#define _jpeg_width image_width
+#define _jpeg_height image_height
 #endif