[Hgengine-cvs] SF.net SVN: hgengine:[345] Mercury2/tools

[<cn...@us...>]

Revision: 345
          http://hgengine.svn.sourceforge.net/hgengine/?rev=345&view=rev
Author:   cnlohr
Date:     2009-06-19 04:21:37 +0000 (Fri, 19 Jun 2009)

Log Message:
-----------
beginnings of a fonter

Added Paths:
-----------
    Mercury2/tools/fonter/
    Mercury2/tools/fonter/Makefile
    Mercury2/tools/fonter/main.cpp

Added: Mercury2/tools/fonter/Makefile
===================================================================
--- Mercury2/tools/fonter/Makefile	                        (rev 0)
+++ Mercury2/tools/fonter/Makefile	2009-06-19 04:21:37 UTC (rev 345)
@@ -0,0 +1,7 @@
+all : hgfonter
+
+CFLAGS= -I/usr/include/freetype2
+CXXFLAGS=$(CFLAGS)
+
+hgfonter : main.o
+	g++ -o $@ $^ -lpng -lfreetype

Added: Mercury2/tools/fonter/main.cpp
===================================================================
--- Mercury2/tools/fonter/main.cpp	                        (rev 0)
+++ Mercury2/tools/fonter/main.cpp	2009-06-19 04:21:37 UTC (rev 345)
@@ -0,0 +1,167 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <png.h>
+#include <ft2build.h>
+#include <freetype/freetype.h>
+
+#ifndef png_jmpbuf
+#  define png_jmpbuf(png_ptr) ((png_ptr)->jmpbuf)
+#endif
+
+
+FILE * fout;
+
+int my_write_png( const char * fname, unsigned char * imagedata, int x, int y );
+int my_read_font( const char * fname, unsigned char * imagedata, int xpp, int ypp, int xq, int yq );
+
+int main( int argc, char ** argv )
+{
+	unsigned char imagedata[1024*1024*4];
+	int x, y;
+
+	if( argc != 3 )
+	{
+		fprintf( stderr, "Mercury Fonter\n" );
+		fprintf( stderr, "Usage: %s [font file] [output png]\n", argv[0] );
+		exit( -1 );
+	}
+
+	for( int x = 0; x < 1024; x++ )
+		for( int y = 0; y < 1024; y++ )
+		{
+			imagedata[(x+y*1024)*2+0] = 255;	//red
+			imagedata[(x+y*1024)*2+1] = 255;	//alpha
+//			imagedata[(x+y*1024)*4+2] = 255;	//blue
+//			imagedata[(x+y*1024)*4+3] = 255;	//alpha
+		}
+
+	my_read_font( argv[1], imagedata, 64, 64, 16, 16 );
+	my_write_png( argv[2], imagedata, 1024, 1024 );
+}
+
+int my_read_font( const char * fname, unsigned char * imagedata, int xpp, int ypp, int xq, int yq )
+{
+	FT_Library library;
+	FT_Face face;
+	int error;
+	int glyph_index;
+	int x;
+	int y;
+
+	error = FT_Init_FreeType( &library );
+	if( error )
+	{
+		fprintf( stderr, "Error.  Could not initialize freetype\n" );
+		exit( -1 );
+	}
+
+	error = FT_New_Face( library, fname, 0, &face );
+
+	if ( error == FT_Err_Unknown_File_Format )
+	{
+		fprintf( stderr, "Error.  FT_Err_Unknown_File_Format\n" );
+		exit( -1 );
+	}
+	else if ( error )
+	{
+		fprintf( stderr, "Error.  Something went wrong with FT_NewFace.\n" );
+		exit( -1 );
+	}
+
+	error = FT_Set_Pixel_Sizes( face, 0, 64 );
+	if( error )
+	{
+		fprintf( stderr, "Error with FT_Set_Pixel_Sizes\n" );
+		exit( -3 );
+	}
+
+	glyph_index = FT_Get_Char_Index( face, 65 );
+
+	error = FT_Load_Glyph( face,
+		glyph_index, 0 ); //FT_LOAD_NO_BITMAP (try as last thing)
+
+	if( error )
+	{
+		fprintf( stderr, "FT_Load_Glyph had a problem.\n" );
+		exit( -4 );
+	}
+
+	error = FT_Render_Glyph( face->glyph, FT_RENDER_MODE_NORMAL );
+	if( error )
+	{
+		fprintf( stderr, "FT_Render_Glyph had a problem.\n" );
+		exit( -4 );
+	}
+
+	FT_Bitmap l_bitmap = face->glyph->bitmap;
+
+	for( int x = 0; x < 1024; x++ )
+		for( int y = 0; y < 1024; y++ )
+		{
+			if( x > l_bitmap.width  ) continue;
+			if( y > l_bitmap.rows ) continue;
+			imagedata[(x+y*1024)*2+1] = face->glyph->bitmap.buffer[x+y*l_bitmap.width ];
+		}
+
+}
+
+int my_write_png( const char * fname, unsigned char * imagedata, int width, int height )
+{
+	png_structp png_ptr;
+	png_infop info_ptr;
+	png_uint_32 k;
+	png_bytep row_pointers[height];
+
+	memset( &info_ptr, 0, sizeof( info_ptr ) );
+
+	fout = fopen( fname, "wb" );
+	if( !fout )
+	{
+		fprintf( stderr, "Error. Could not open output file.\n" );
+		exit( -1 );
+	}
+
+	png_ptr = png_create_write_struct( PNG_LIBPNG_VER_STRING, 0, 0, 0 );
+
+	if (png_ptr == NULL)
+	{
+		fclose(fout);
+		fprintf( stderr, "png_create_write_struct error.\n" );
+		exit( -1 );
+	}
+
+	info_ptr = png_create_info_struct(png_ptr);
+	if (info_ptr == NULL)
+	{
+		fclose(fout);
+		fprintf( stderr, "png_create_info_struct error.\n" );
+		png_destroy_write_struct(&png_ptr,  png_infopp_NULL);
+		exit( -2 );
+	}
+
+	png_set_IHDR( png_ptr, info_ptr, width, height, 8, PNG_COLOR_TYPE_GRAY_ALPHA,
+		PNG_INTERLACE_NONE, PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE );
+
+	if (setjmp(png_jmpbuf(png_ptr)))
+	{
+		/* If we get here, we had a problem reading the file */
+		fclose(fout);
+		png_destroy_write_struct(&png_ptr, &info_ptr);
+		fprintf( stderr, "Something bad happened.\n" );
+		exit( -3 );
+	}
+
+	png_init_io( png_ptr, fout );
+	png_write_info( png_ptr, info_ptr );
+
+
+	for (k = 0; k < height; k++)
+		row_pointers[k] = imagedata + k*width*2;
+
+	png_write_image( png_ptr, row_pointers );
+
+	png_write_end( png_ptr, info_ptr );
+
+	return 0;
+
+}


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