/// <summary>
/// 用一个纹理绘制指定范围内的所有可见字符
/// </summary>
/// <param name="ttfFullname"></param>
/// <param name="fontHeight">此值越大，绘制文字的清晰度越高，但占用的纹理资源就越多。</param>
/// <param name="firstChar"></param>
/// <param name="lastChar"></param>
/// <param name="maxTextureWidth">生成的纹理的最大宽度。</param>
/// <returns></returns>
public static FontTexture GetTTFTexture(string ttfFullname, int fontHeight, int maxTextureWidth, char firstChar, char lastChar)
{
FreeTypeLibrary library = new FreeTypeLibrary();
FreeTypeFace face = new FreeTypeFace(library, ttfFullname);
Dictionary <char, CharacterInfo> charInfoDict;
int textureWidth, textureHeight;
GetTextureBlueprint(face, fontHeight, maxTextureWidth, firstChar, lastChar, out charInfoDict, out textureWidth, out textureHeight);
if (textureWidth == 0)
{
textureWidth = 1;
}
if (textureHeight == 0)
{
textureHeight = 1;
}
System.Drawing.Bitmap bigBitmap = GetBigBitmap(face, fontHeight, maxTextureWidth, firstChar, lastChar, charInfoDict, textureWidth, textureHeight);
face.Dispose();
library.Dispose();
var result = new FontTexture()
{
TtfFullname = ttfFullname, FontHeight = fontHeight, FirstChar = firstChar, LastChar = lastChar, BigBitmap = bigBitmap, CharInfoDict = charInfoDict,
};
return(result);
}
/// <summary>
/// 用一个纹理绘制指定范围内的所有可见字符
/// </summary>
/// <param name="ttfFullname"></param>
/// <param name="fontHeight">此值越大，绘制文字的清晰度越高，但占用的纹理资源就越多。</param>
/// <param name="firstChar"></param>
/// <param name="lastChar"></param>
/// <param name="maxTextureWidth">生成的纹理的最大宽度。</param>
/// <returns></returns>
public static IEnumerable <TTFTextureYeildingState> GetTTFTexture(
string ttfFullname, int fontHeight, int maxTextureWidth, char firstChar, char lastChar)
{
FreeTypeLibrary library = new FreeTypeLibrary();
FreeTypeFace face = new FreeTypeFace(library, ttfFullname);
Dictionary <char, CharacterInfo> charInfoDict = null;
int textureWidth = 0, textureHeight = 0;
System.Drawing.Bitmap bigBitmap = null;
foreach (var item in GetTextureBlueprint(face, fontHeight, maxTextureWidth, firstChar, lastChar))
{
charInfoDict = item.dict;
textureWidth = item.textureWidth;
textureHeight = item.textureHeight;
yield return(item);
}
if (textureWidth == 0)
{
textureWidth = 1;
}
if (textureHeight == 0)
{
textureHeight = 1;
}
foreach (var item in GetBigBitmap(face, fontHeight, maxTextureWidth,
firstChar, lastChar, charInfoDict, textureWidth, textureHeight))
{
bigBitmap = item.bigBitmap;
yield return(item);
}
face.Dispose();
library.Dispose();
var result = new FontTexture()
{
TtfFullname = ttfFullname,
FontHeight = fontHeight,
FirstChar = firstChar,
LastChar = lastChar,
BigBitmap = bigBitmap,
CharInfoDict = charInfoDict,
};
FileInfo fileInfo = new FileInfo(ttfFullname);
yield return(new TTFTextureYeildingState()
{
percent = 100,
ttfTexture = result,
message = string.Format("got font texture for {0}", fileInfo.Name),
});
}
static void Main(string[] args)
{
var library = new FreeTypeLibrary();
FT_Library_Version(library.Native, out var major, out var minor, out var patch);
Console.WriteLine($"FreeType version: {major}.{minor}.{patch}");
Console.WriteLine($"FreeType native path: {NativeLibraryLoader.NativeLibraryPath}");
}
protected override void Initialize()
{
var library = new FreeTypeLibrary();
FT_Library_Version(library.Native, out var major, out var minor, out var patch);
Console.WriteLine($"FreeType version: {major}.{minor}.{patch}");
Console.WriteLine($"FreeType path: {NativeLibraryLoader.NativeLibraryPath}");
base.Initialize();
}
/// <summary>
/// 用一个纹理绘制指定范围内的所有可见字符
/// </summary>
/// <param name="ttfFullname"></param>
/// <param name="fontHeight">此值越大，绘制文字的清晰度越高，但占用的纹理资源就越多。</param>
/// <param name="firstChar"></param>
/// <param name="lastChar"></param>
/// <param name="maxTextureWidth">生成的纹理的最大宽度。</param>
/// <returns></returns>
public static IEnumerable<TTFTextureYeildingState> GetTTFTexture(
string ttfFullname, int fontHeight, int maxTextureWidth, char firstChar, char lastChar)
{
FreeTypeLibrary library = new FreeTypeLibrary();
FreeTypeFace face = new FreeTypeFace(library, ttfFullname);
Dictionary<char, CharacterInfo> charInfoDict = null;
int textureWidth = 0, textureHeight = 0;
System.Drawing.Bitmap bigBitmap = null;
foreach (var item in GetTextureBlueprint(face, fontHeight, maxTextureWidth, firstChar, lastChar))
{
charInfoDict = item.dict;
textureWidth = item.textureWidth;
textureHeight = item.textureHeight;
yield return item;
}
if (textureWidth == 0) { textureWidth = 1; }
if (textureHeight == 0) { textureHeight = 1; }
foreach (var item in GetBigBitmap(face, fontHeight, maxTextureWidth,
firstChar, lastChar, charInfoDict, textureWidth, textureHeight))
{
bigBitmap = item.bigBitmap;
yield return item;
}
face.Dispose();
library.Dispose();
var result = new FontTexture()
{
TtfFullname = ttfFullname,
FontHeight = fontHeight,
FirstChar = firstChar,
LastChar = lastChar,
BigBitmap = bigBitmap,
CharInfoDict = charInfoDict,
};
FileInfo fileInfo = new FileInfo(ttfFullname);
yield return new TTFTextureYeildingState()
{
percent = 100,
ttfTexture = result,
message = string.Format("got font texture for {0}", fileInfo.Name),
};
}
/// <summary>
/// 用一个纹理绘制指定范围内的所有可见字符
/// </summary>
/// <param name="ttfFullname"></param>
/// <param name="fontHeight">此值越大，绘制文字的清晰度越高，但占用的纹理资源就越多。</param>
/// <param name="firstChar"></param>
/// <param name="lastChar"></param>
/// <param name="maxTextureWidth">生成的纹理的最大宽度。</param>
/// <returns></returns>
public static FontTexture GetTTFTexture(string ttfFullname, int fontHeight, int maxTextureWidth, char firstChar, char lastChar)
{
FreeTypeLibrary library = new FreeTypeLibrary();
FreeTypeFace face = new FreeTypeFace(library, ttfFullname);
Dictionary<char, CharacterInfo> charInfoDict;
int textureWidth, textureHeight;
GetTextureBlueprint(face, fontHeight, maxTextureWidth, firstChar, lastChar, out charInfoDict, out textureWidth, out textureHeight);
if (textureWidth == 0) { textureWidth = 1; }
if (textureHeight == 0) { textureHeight = 1; }
System.Drawing.Bitmap bigBitmap = GetBigBitmap(face, fontHeight, maxTextureWidth, firstChar, lastChar, charInfoDict, textureWidth, textureHeight);
face.Dispose();
library.Dispose();
var result = new FontTexture() { TtfFullname = ttfFullname, FontHeight = fontHeight, FirstChar = firstChar, LastChar = lastChar, BigBitmap = bigBitmap, CharInfoDict = charInfoDict, };
return result;
}
public FreeType(FreeTypeLibrary freeTypeLibrary)
{
this.freeTypeLibrary = freeTypeLibrary;
disposables = new List <IDisposable>();
}
