PixelPerfectEngine.system.file source code

1 module PixelPerfectEngine.system.file;
2 /*
3  * Copyright (C) 2015-2017, by Laszlo Szeremi under the Boost license.
4  *
5  * Pixel Perfect Engine, file module
6  */
7 
8 import std.file;
9 import std.stdio;
10 import std.conv;
11 import PixelPerfectEngine.system.etc;
12 import PixelPerfectEngine.system.exc;
13 
14 import PixelPerfectEngine.graphics.bitmap;
15 import PixelPerfectEngine.graphics.raster;
16 import PixelPerfectEngine.graphics.fontsets;
17 
18 import PixelPerfectEngine.extbmp.extbmp;
19 
20 import derelict.sdl2.mixer;
21 
22 /**
23  * FILE FORMAT IS DEPRECATED! USE XMP INSTEAD!
24  */
25 public Bitmap16Bit[] loadBitmapFromFile(string filename){
26 	auto fileData = cast(ushort[])std.file.read(filename);
27 	ushort x = fileData[1], y = fileData[2], nOfSprites = fileData[0];
28 	//writeln(fileData.length);
29 	Bitmap16Bit[] bar;
30 	for(int i; i < nOfSprites; i++){
31 		//writeln(3+(x*y*i));
32 		ushort[] pixeldata = fileData[(3+(x*y*i)) .. (3+(x*y*(i+1)))];
33 		Bitmap16Bit foo = new Bitmap16Bit(pixeldata , x, y);
34 
35 		bar ~= foo;
36 
37 	}
38 
39 	return bar;
40 }
41 /**
42  * Gets a bitmap from the XMP file. 
43  */
44 T loadBitmapFromXMP(T)(ExtendibleBitmap xmp, string ID){
45 	static if(T.stringof == Bitmap4Bit.stringof || T.stringof == Bitmap8Bit.stringof){
46 		T result = new T(cast(ubyte[])xmp.getBitmap(ID),xmp.getXsize(ID),xmp.getYsize(ID),null);
47 		return result;
48 	}else static if(T.stringof == Bitmap16Bit.stringof){
49 		T result;// = new T(cast(ushort[])xmp.getBitmap(ID),xmp.getXsize(ID),xmp.getYsize(ID));
50 		switch(xmp.bitdepth[xmp.searchForID(ID)]){
51 			case "16bit":
52 				result = new T(cast(ushort[])xmp.getBitmap(ID),xmp.getXsize(ID),xmp.getYsize(ID));
53 				break;
54 			case "8bit":
55 				ushort[] subresult;
56 				ubyte[] input = cast(ubyte[])xmp.getBitmap(ID);
57 				subresult.length = input.length;
58 				for(int i ; i < subresult.length ; i++){
59 					subresult[i] = input[i];
60 				}
61 				result = new T(subresult,xmp.getXsize(ID),xmp.getYsize(ID));
62 				break;
63 			case "4bit":
64 				ushort[] subresult;
65 				ubyte[] input = cast(ubyte[])xmp.getBitmap(ID);
66 				subresult.length = input.length;
67 				for(int i ; i < subresult.length ; i++){
68 					if(i & 1)
69 						subresult[i] = input[i>>1]>>4;
70 					else
71 						subresult[i] = input[i>>1]&0b0000_1111;
72 				}
73 				result = new T(subresult,xmp.getXsize(ID),xmp.getYsize(ID));
74 				break;
75 			/*case "1bit":
76 				
77 				break;*/
78 			default:
79 				throw new FileAccessException("Bitdepth error!");
80 		}
81 		
82 		return result;
83 	}else static if(T.stringof == Bitmap32Bit.stringof){
84 		T result = new T(cast(Color[])xmp.getBitmap(ID),xmp.getXsize(ID),xmp.getYsize(ID));
85 		return result;
86 	}else static if(T.stringof == ABitmap.stringof){
87 		
88 		switch(xmp.bitdepth[xmp.searchForID(ID)]){
89 			case "4bit":
90 				return new Bitmap4Bit(cast(ubyte[])xmp.getBitmap(ID),xmp.getXsize(ID),xmp.getYsize(ID));
91 			case "8bit":
92 				return new Bitmap8Bit(cast(ubyte[])xmp.getBitmap(ID),xmp.getXsize(ID),xmp.getYsize(ID));
93 			case "16bit":
94 				return new Bitmap16Bit(cast(ushort[])xmp.getBitmap(ID),xmp.getXsize(ID),xmp.getYsize(ID));
95 			case "32bit":
96 				return new Bitmap32Bit(cast(Color[])xmp.getBitmap(ID),xmp.getXsize(ID),xmp.getYsize(ID));
97 			default:
98 				return null;
99 				
100 		}
101 		
102 	}else static assert("Template argument \'" ~ T.stringof ~ "\' not supported in function \'T loadBitmapFromXMP(T)(ExtendibleBitmap xmp, string ID)\'");
103 }
104 /**
105  * Loads a palette from an XMP file.
106  */
107 public void loadPaletteFromXMP(ExtendibleBitmap xmp, string ID, Raster target, int offset = 0){
108 	target.palette = cast(Color[])xmp.getPalette(ID);
109 	//writeln(target.palette);
110 	/*target.setupPalette(0);
111 	int max = (palette.length / 3);
112 	for(int i ; i < max ; i++){
113 		target.addColor(palette[(i * 3)], palette[(i * 3) + 1], palette[(i * 3) + 2]);
114 		//writeln(i);
115 	}*/
116 
117 }
118 /**
119  * Loads a fontset from an XMP file.
120  */
121 Fontset!Bitmap16Bit loadFontsetFromXMP(ExtendibleBitmap xmp, string fontName){
122 	Bitmap16Bit[wchar] characters;
123 	foreach(s;xmp.bitmapID){
124 		//writeln(parseHex(s[fontName.length..(s.length-1)]));
125 		//if(fontName == s[0..(fontName.length-1)]){
126 		characters[to!wchar(parseHex(s[fontName.length..s.length]))] = loadBitmapFromXMP!Bitmap16Bit(xmp,s);
127 		//}
128 	}
129 	return new Fontset!Bitmap16Bit(fontName, characters['0'].height, characters);
130 }
131 /**
132  * Loads a *.wav file if SDL2 mixer is used
133  */
134 public Mix_Chunk* loadSoundFromFile(const char* filename){
135 	return Mix_LoadWAV(filename);
136 }
137 
138 File loadFileFromDisk(string filename){
139 	return File(filename, "r");
140 }