public BitmapFont (Stream stream, Shader shader = null) {
ThreadContext.Current.EnsureGLContext();
if (shader == null)
shader = new SpriteShader();
var tr = new TarReader(stream);
while (tr.MoveNext(false)) {
switch (tr.FileInfo.FileName) {
case "font.atlas":
using (var atlasStream = new MemoryStream()) {
tr.Read(atlasStream);
atlasStream.Position = 0;
this.ParseStream(atlasStream);
}
break;
case "font.png":
using (var textureStream = new MemoryStream()) {
tr.Read(textureStream);
textureStream.Position = 0;
_material = new SpriteMaterial(shader, new Texture (textureStream));
}
break;
default:
throw new ContentException("Unrecognized font file " + tr.FileInfo.FileName);
}
}
if (_chars == null)
throw new ContentException("Missing font atlas.");
if (_material == null)
throw new ContentException("Missing font texture.");
}
public Material (Shader shader) {
_shader = shader;
}
public BitmapFont (string path, Shader shader = null) : this(Assets.ResolveStream(path), shader) {
}
public Shader (string vertSource, string fragSource, string name = null) {
_name = name ?? this.GetType().FullName;
var glContext = ThreadContext.Current.EnsureGLContext();
lock (_shaders) {
Dictionary<string, Shader> shaders;
if (_shaders.TryGetValue(glContext, out shaders)) {
Shader master;
if (shaders.TryGetValue(_name, out master)) {
_master = master;
_master._refCount++;
_handle = master._handle;
_vertHandle = master._vertHandle;
_fragHandle = master._fragHandle;
_uniforms = master._uniforms;
_attributes = master._attributes;
return;
}
} else {
_shaders.Add(glContext, new Dictionary<string, Shader>());
}
_shaders[glContext].Add(_name, this);
}
_master = this;
// create shader program and link
#if __ANDROID__
_vertHandle = (uint)GL.CreateShader(All.VertexShader);
_fragHandle = (uint)GL.CreateShader(All.FragmentShader);
#else
_vertHandle = (uint)GL.CreateShader(ShaderType.VertexShader);
_fragHandle = (uint)GL.CreateShader(ShaderType.FragmentShader);
#endif
if (_vertHandle <= 0 || _fragHandle <= 0)
throw new ShaderException("Failed to create shader.");
_handle = (uint)GL.CreateProgram();
if (_handle <= 0)
throw new ShaderException("Failed to create program.");
CompileShader(_vertHandle, vertSource);
CompileShader(_fragHandle, fragSource);
GL.AttachShader(_handle, _vertHandle);
GL.AttachShader(_handle, _fragHandle);
GL.LinkProgram(_handle);
// catalog linked shader uniforms
int total = 0;
#if __ANDROID__
GL.GetProgram(_handle, All.ActiveUniforms, out total);
#else
GL.GetProgram(_handle, ProgramParameter.ActiveUniforms, out total);
#endif
var sb = new StringBuilder(100);
_uniforms = new Dictionary<string, int>();
for (var i = 0; i < total; ++i) {
int length = 0, size = 0;
#if __ANDROID__
All type = All.None;
GL.GetActiveUniform((uint)_handle, (uint)i, 100, out length, out size, out type, name);
#else
ActiveUniformType type;
GL.GetActiveUniform(_handle, (uint)i, 100, out length, out size, out type, sb);
#endif
var n = sb.ToString();
#if __ANDROID__
_uniforms.Add(n, GL.GetUniformLocation(_handle, name));
#else
_uniforms.Add(n, GL.GetUniformLocation(_handle, n));
#endif
sb.Length = 0;
}
// catalog linked vertex attributes
#if __ANDROID__
GL.GetProgram(_handle, All.ActiveAttributes, out total);
#else
GL.GetProgram(_handle, ProgramParameter.ActiveAttributes, out total);
#endif
_attributes = new Dictionary<string, int>();
for (var i = 0; i < total; ++i) {
int length = 0, size = 0;
#if __ANDROID__
All type;
#else
ActiveAttribType type;
#endif
GL.GetActiveAttrib(_handle, (uint)i, 100, out length, out size, out type, sb);
var n = sb.ToString();
#if __ANDROID__
_attributes.Add(n, GL.GetAttribLocation(_handle, name));
#else
_attributes.Add(n, GL.GetAttribLocation(_handle, n));
#endif
sb.Length = 0;
}
_refCount = 1;
Interlocked.Increment(ref _shaderCount);
}
public MeshMaterial (Shader shader = null, string name = "") : base(shader) {
_name = name;
_polygonState = new int[2];
}
static void SetTextures(Shader shader, ref int unit, TextureSlot[] stack, string[] names, string[] blendNames) {
for (var i = 0; i < stack.Length; i++) {
var slot = stack[i];
GL.ActiveTexture(TextureUnit.Texture0 + unit);
GL.BindTexture(TextureTarget.Texture2D, slot.Texture.Handle);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapS, (int)slot.WrapS);
GL.TexParameter(TextureTarget.Texture2D, TextureParameterName.TextureWrapT, (int)slot.WrapT);
shader.Uniform(names[i], unit++);
shader.Uniform(blendNames[i], slot.BlendFactor);
}
}
public Shader(string vertSource, string fragSource, string name = null)
{
_name = name ?? this.GetType().FullName;
var glContext = ThreadContext.Current.EnsureGLContext();
lock (_shaders) {
Dictionary <string, Shader> shaders;
if (_shaders.TryGetValue(glContext, out shaders))
{
Shader master;
if (shaders.TryGetValue(_name, out master))
{
_master = master;
_master._refCount++;
_handle = master._handle;
_vertHandle = master._vertHandle;
_fragHandle = master._fragHandle;
_uniforms = master._uniforms;
_attributes = master._attributes;
return;
}
}
else
{
_shaders.Add(glContext, new Dictionary <string, Shader>());
}
_shaders[glContext].Add(_name, this);
_master = this;
// create shader program and link
#if __ANDROID__
_vertHandle = (uint)GL.CreateShader(All.VertexShader);
_fragHandle = (uint)GL.CreateShader(All.FragmentShader);
#else
_vertHandle = (uint)GL.CreateShader(ShaderType.VertexShader);
_fragHandle = (uint)GL.CreateShader(ShaderType.FragmentShader);
#endif
if (_vertHandle <= 0 || _fragHandle <= 0)
{
throw new ShaderException("Failed to create shader.");
}
_handle = (uint)GL.CreateProgram();
if (_handle <= 0)
{
throw new ShaderException("Failed to create program.");
}
CompileShader(_vertHandle, vertSource);
CompileShader(_fragHandle, fragSource);
GL.AttachShader(_handle, _vertHandle);
GL.AttachShader(_handle, _fragHandle);
GL.LinkProgram(_handle);
}
// catalog linked shader uniforms
int total = 0;
#if __ANDROID__
GL.GetProgram(_handle, All.ActiveUniforms, out total);
#else
GL.GetProgram(_handle, ProgramParameter.ActiveUniforms, out total);
#endif
var sb = new StringBuilder(100);
_uniforms = new Dictionary <string, int>();
for (var i = 0; i < total; ++i)
{
int length = 0, size = 0;
ActiveUniformType type;
#if __ANDROID__
GL.GetActiveUniform((uint)_handle, (uint)i, 100, out length, out size, out type, sb);
#else
GL.GetActiveUniform(_handle, (uint)i, 100, out length, out size, out type, sb);
#endif
var n = sb.ToString();
#if __ANDROID__
_uniforms.Add(n, GL.GetUniformLocation(_handle, sb));
#else
_uniforms.Add(n, GL.GetUniformLocation(_handle, n));
#endif
sb.Length = 0;
}
// catalog linked vertex attributes
#if __ANDROID__
GL.GetProgram(_handle, All.ActiveAttributes, out total);
#else
GL.GetProgram(_handle, ProgramParameter.ActiveAttributes, out total);
#endif
_attributes = new Dictionary <string, int>();
for (var i = 0; i < total; ++i)
{
int length = 0, size = 0;
#if __ANDROID__
All type;
#else
ActiveAttribType type;
#endif
GL.GetActiveAttrib(_handle, (uint)i, 100, out length, out size, out type, sb);
var n = sb.ToString();
#if __ANDROID__
_attributes.Add(n, GL.GetAttribLocation(_handle, sb));
#else
_attributes.Add(n, GL.GetAttribLocation(_handle, n));
#endif
sb.Length = 0;
}
_refCount = 1;
}
public SpriteMaterial (Shader shader, Texture texture) : base(shader) {
_texture = texture;
this.Color = Vector4.One;
}
