//
protected override void OnProgramBuilt()
{
_isBigEndian = _shaderProgram.GetUniform1("isBigEndian");
_convKernel = _shaderProgram.GetUniformMat3("convKernel");
_onepix_xy = _shaderProgram.GetUniform2("onepix_xy");
_kernelWeight = _shaderProgram.GetUniform1("kernelWeight");
}
public GlyphFillShader(CanvasToShaderSharedResource canvasShareResource)
: base(canvasShareResource)
{
//----------------
//vertex shader source
string vs = @"
attribute vec2 a_position;
uniform mat4 u_mvpMatrix;
uniform vec4 u_solidColor;
uniform vec2 u_2d_offset;
varying vec4 v_color;
void main()
{
gl_Position = u_mvpMatrix* vec4(a_position[0] +u_2d_offset[0],a_position[1]+ u_2d_offset[1],0,1);
v_color= u_solidColor;
}
";
//fragment source
string fs = @"
precision mediump float;
varying vec4 v_color;
void main()
{
gl_FragColor = v_color;
}
";
if (!shaderProgram.Build(vs, fs))
{
throw new NotSupportedException();
}
a_position = shaderProgram.GetAttrV2f("a_position");
u_matrix = shaderProgram.GetUniformMat4("u_mvpMatrix");
u_solidColor = shaderProgram.GetUniform4("u_solidColor");
u_2d_offset = shaderProgram.GetUniform2("u_2d_offset");
}
//
protected override void OnProgramBuilt()
{
u_convKernel = _shaderProgram.GetUniformMat3("convKernel");
u_onepix_xy = _shaderProgram.GetUniform2("onepix_xy");
u_kernelWeight = _shaderProgram.GetUniform1("kernelWeight");
}
