Renamed gles_book_examples to gles2_book to make it shorter and more correct....

third_party/gles_book_examples/Common/Source/esUtil.c

-//
-// Book:      OpenGL(R) ES 2.0 Programming Guide
-// Authors:   Aaftab Munshi, Dan Ginsburg, Dave Shreiner
-// ISBN-10:   0321502795
-// ISBN-13:   9780321502797
-// Publisher: Addison-Wesley Professional
-// URLs:      http://safari.informit.com/9780321563835
-//            http://www.opengles-book.com
-//
-
-// ESUtil.c
-//
-//    A utility library for OpenGL ES.  This library provides a
-//    basic common framework for the example applications in the
-//    OpenGL ES 2.0 Programming Guide.
-//
-
-///
-//  Includes
-//
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdarg.h>
-#include <string.h>
-
-#include <GLES2/gl2.h>
-
-#include "esUtil.h"
-#include "esUtil_win.h"
-
-///
-//  esInitContext()
-//
-//      Initialize ES utility context.  This must be called before calling any other
-//      functions.
-//
-void esInitContext ( ESContext *esContext )
-{
-   if ( esContext != NULL )
-   {
-      memset( esContext, 0, sizeof( ESContext) );
-   }
-}
-
-///
-// esLogMessage()
-//
-//    Log an error message to the debug output for the platform
-//
-void esLogMessage ( const char *formatStr, ... )
-{
-    va_list params;
-    char buf[BUFSIZ];
-
-    va_start ( params, formatStr );
-    vsprintf_s ( buf, sizeof(buf),  formatStr, params );
-    
-    printf ( "%s", buf );
-    
-    va_end ( params );
-}
-
-///
-// esLoadTGA()
-//
-//    Loads a 24-bit TGA image from a file
-//
-char* esLoadTGA ( char *fileName, int *width, int *height )
-{
-   char *buffer;
-
-   if ( WinTGALoad ( fileName, &buffer, width, height ) )
-   {
-      return buffer;
-   }
-
-   return NULL;
-}