playcanvas
Version:
PlayCanvas WebGL game engine
90 lines (87 loc) • 3.88 kB
JavaScript
import { Version } from '../version.js';
import { UNIFORMTYPE_BVEC4, UNIFORMTYPE_BVEC4ARRAY, UNIFORMTYPE_UVEC4, UNIFORMTYPE_UVEC4ARRAY, UNIFORMTYPE_IVEC4, UNIFORMTYPE_IVEC4ARRAY, UNIFORMTYPE_VEC4, UNIFORMTYPE_VEC4ARRAY, UNIFORMTYPE_BVEC3, UNIFORMTYPE_BVEC3ARRAY, UNIFORMTYPE_UVEC3, UNIFORMTYPE_UVEC3ARRAY, UNIFORMTYPE_IVEC3, UNIFORMTYPE_IVEC3ARRAY, UNIFORMTYPE_VEC3, UNIFORMTYPE_VEC3ARRAY, UNIFORMTYPE_BVEC2, UNIFORMTYPE_BVEC2ARRAY, UNIFORMTYPE_UVEC2, UNIFORMTYPE_UVEC2ARRAY, UNIFORMTYPE_IVEC2, UNIFORMTYPE_IVEC2ARRAY, UNIFORMTYPE_VEC2, UNIFORMTYPE_VEC2ARRAY, UNIFORMTYPE_BOOL, UNIFORMTYPE_BOOLARRAY, UNIFORMTYPE_UINT, UNIFORMTYPE_UINTARRAY, UNIFORMTYPE_INT, UNIFORMTYPE_INTARRAY, UNIFORMTYPE_FLOAT, UNIFORMTYPE_FLOATARRAY } from '../constants.js';
/**
* @import { GraphicsDevice } from '../graphics-device.js'
*/ /**
* Representation of a shader uniform.
*/ class WebglShaderInput {
/**
* Create a new WebglShaderInput instance.
*
* @param {GraphicsDevice} graphicsDevice - The graphics device used to manage this shader input.
* @param {string} name - The name of the shader input.
* @param {number} type - The type of the shader input.
* @param {number | WebGLUniformLocation} locationId - The location id of the shader input.
*/ constructor(graphicsDevice, name, type, locationId){
// Set the shader uniform location
this.locationId = locationId;
// Resolve the ScopeId for the uniform name
this.scopeId = graphicsDevice.scope.resolve(name);
// Create the version
this.version = new Version();
// custom data type for arrays
if (name.substring(name.length - 3) === '[0]') {
switch(type){
case UNIFORMTYPE_FLOAT:
type = UNIFORMTYPE_FLOATARRAY;
break;
case UNIFORMTYPE_INT:
type = UNIFORMTYPE_INTARRAY;
break;
case UNIFORMTYPE_UINT:
type = UNIFORMTYPE_UINTARRAY;
break;
case UNIFORMTYPE_BOOL:
type = UNIFORMTYPE_BOOLARRAY;
break;
case UNIFORMTYPE_VEC2:
type = UNIFORMTYPE_VEC2ARRAY;
break;
case UNIFORMTYPE_IVEC2:
type = UNIFORMTYPE_IVEC2ARRAY;
break;
case UNIFORMTYPE_UVEC2:
type = UNIFORMTYPE_UVEC2ARRAY;
break;
case UNIFORMTYPE_BVEC2:
type = UNIFORMTYPE_BVEC2ARRAY;
break;
case UNIFORMTYPE_VEC3:
type = UNIFORMTYPE_VEC3ARRAY;
break;
case UNIFORMTYPE_IVEC3:
type = UNIFORMTYPE_IVEC3ARRAY;
break;
case UNIFORMTYPE_UVEC3:
type = UNIFORMTYPE_UVEC3ARRAY;
break;
case UNIFORMTYPE_BVEC3:
type = UNIFORMTYPE_BVEC3ARRAY;
break;
case UNIFORMTYPE_VEC4:
type = UNIFORMTYPE_VEC4ARRAY;
break;
case UNIFORMTYPE_IVEC4:
type = UNIFORMTYPE_IVEC4ARRAY;
break;
case UNIFORMTYPE_UVEC4:
type = UNIFORMTYPE_UVEC4ARRAY;
break;
case UNIFORMTYPE_BVEC4:
type = UNIFORMTYPE_BVEC4ARRAY;
break;
}
}
// Set the data dataType
this.dataType = type;
this.value = [
null,
null,
null,
null
];
// Array to hold texture unit ids
this.array = [];
}
}
export { WebglShaderInput };