Rice Video Plugin for GLES1.1

[mupen64plus-pandora.git] / source / rice_gles / src / liblinux / BMGUtils.h

diff --git a/source/rice_gles/src/liblinux/BMGUtils.h b/source/rice_gles/src/liblinux/BMGUtils.h
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+#ifndef _BMG_UTILS_H_
+#define _BMG_UTILS_H_
+/*
+    some handy utilities used in several units
+
+    Copyright 2001
+    M. Scott Heiman
+    All Rights Reserved
+*/
+
+#include "BMGImage.h"
+#include "../osal_preproc.h"
+
+/* the following 3 functions are used to access the background color
+// and the background image */
+void InitBackground(void);
+
+unsigned char *GetBackgroundColor(void);
+
+struct BMGImageStruct *GetBackgroundImage(void);
+
+/* creates a 24 bpp image from a 16 bpp image */
+BMGError Convert16to24( struct BMGImageStruct *img );
+
+/* converts an array of 1-bit scanlines to 8-bit scanlines */
+void Convert1to8( struct BMGImageStruct img,
+                  unsigned char *out );
+
+/* converts an array of 4-bit scanlines to 8-bit scanlines */
+void Convert4to8( struct BMGImageStruct img,
+                  unsigned char *out );
+
+unsigned char AlphaComp( unsigned char fg,
+                         unsigned char alpha,
+                         unsigned char bg );
+
+unsigned char InverseAlphaComp( unsigned char fg,
+                                unsigned char alpha,
+                                unsigned char bg );
+
+BITMAPINFO InternalCreateBMI( unsigned int dwWidth,  /* width */
+                              unsigned int dwHeight, /* height */
+                              unsigned short wBitCount, /* bit count */
+                              int compression );  /* compression type */
+
+void SetLastBMGError( BMGError err );
+
+/* the following 4 functions are for dealing with file formats
+   that store data in big endian format */
+short SwapShort( short in );
+unsigned short SwapUShort( unsigned short in );
+int SwapLong( int in );
+unsigned int SwapULong( unsigned int in );
+
+#endif
+