MCP 3D Printer Server
by DMontgomery40
Verified
- node_modules
- three
- src
- extras
import { AlphaFormat, LuminanceFormat, LuminanceAlphaFormat, RedFormat, RedIntegerFormat, RGFormat, RGIntegerFormat, RGBFormat, RGBAFormat, RGBAIntegerFormat, RGB_S3TC_DXT1_Format, RGBA_S3TC_DXT1_Format, RGBA_S3TC_DXT3_Format, RGBA_S3TC_DXT5_Format, RGB_PVRTC_2BPPV1_Format, RGBA_PVRTC_2BPPV1_Format, RGB_PVRTC_4BPPV1_Format, RGBA_PVRTC_4BPPV1_Format, RGB_ETC1_Format, RGB_ETC2_Format, RGBA_ETC2_EAC_Format, RGBA_ASTC_4x4_Format, RGBA_ASTC_5x4_Format, RGBA_ASTC_5x5_Format, RGBA_ASTC_6x5_Format, RGBA_ASTC_6x6_Format, RGBA_ASTC_8x5_Format, RGBA_ASTC_8x6_Format, RGBA_ASTC_8x8_Format, RGBA_ASTC_10x5_Format, RGBA_ASTC_10x6_Format, RGBA_ASTC_10x8_Format, RGBA_ASTC_10x10_Format, RGBA_ASTC_12x10_Format, RGBA_ASTC_12x12_Format, RGBA_BPTC_Format, RGB_BPTC_SIGNED_Format, RGB_BPTC_UNSIGNED_Format, RED_RGTC1_Format, SIGNED_RED_RGTC1_Format, RED_GREEN_RGTC2_Format, SIGNED_RED_GREEN_RGTC2_Format, UnsignedByteType, ByteType, UnsignedShortType, ShortType, HalfFloatType, UnsignedShort4444Type, UnsignedShort5551Type, UnsignedIntType, IntType, FloatType, UnsignedInt5999Type } from '../constants.js';
function contain( texture, aspect ) {
const imageAspect = ( texture.image && texture.image.width ) ? texture.image.width / texture.image.height : 1;
if ( imageAspect > aspect ) {
texture.repeat.x = 1;
texture.repeat.y = imageAspect / aspect;
texture.offset.x = 0;
texture.offset.y = ( 1 - texture.repeat.y ) / 2;
} else {
texture.repeat.x = aspect / imageAspect;
texture.repeat.y = 1;
texture.offset.x = ( 1 - texture.repeat.x ) / 2;
texture.offset.y = 0;
}
return texture;
}
function cover( texture, aspect ) {
const imageAspect = ( texture.image && texture.image.width ) ? texture.image.width / texture.image.height : 1;
if ( imageAspect > aspect ) {
texture.repeat.x = aspect / imageAspect;
texture.repeat.y = 1;
texture.offset.x = ( 1 - texture.repeat.x ) / 2;
texture.offset.y = 0;
} else {
texture.repeat.x = 1;
texture.repeat.y = imageAspect / aspect;
texture.offset.x = 0;
texture.offset.y = ( 1 - texture.repeat.y ) / 2;
}
return texture;
}
function fill( texture ) {
texture.repeat.x = 1;
texture.repeat.y = 1;
texture.offset.x = 0;
texture.offset.y = 0;
return texture;
}
/**
* Given the width, height, format, and type of a texture. Determines how many
* bytes must be used to represent the texture.
*
* @param {Number} width
* @param {Number} height
* @param {Number} format
* @param {Number} type
* @return {Number} The number of bytes required to represent the texture.
*/
function getByteLength( width, height, format, type ) {
const typeByteLength = getTextureTypeByteLength( type );
switch ( format ) {
// https://registry.khronos.org/OpenGL-Refpages/es3.0/html/glTexImage2D.xhtml
case AlphaFormat:
return width * height;
case LuminanceFormat:
return width * height;
case LuminanceAlphaFormat:
return width * height * 2;
case RedFormat:
return ( ( width * height ) / typeByteLength.components ) * typeByteLength.byteLength;
case RedIntegerFormat:
return ( ( width * height ) / typeByteLength.components ) * typeByteLength.byteLength;
case RGFormat:
return ( ( width * height * 2 ) / typeByteLength.components ) * typeByteLength.byteLength;
case RGIntegerFormat:
return ( ( width * height * 2 ) / typeByteLength.components ) * typeByteLength.byteLength;
case RGBFormat:
return ( ( width * height * 3 ) / typeByteLength.components ) * typeByteLength.byteLength;
case RGBAFormat:
return ( ( width * height * 4 ) / typeByteLength.components ) * typeByteLength.byteLength;
case RGBAIntegerFormat:
return ( ( width * height * 4 ) / typeByteLength.components ) * typeByteLength.byteLength;
// https://registry.khronos.org/webgl/extensions/WEBGL_compressed_texture_s3tc_srgb/
case RGB_S3TC_DXT1_Format:
case RGBA_S3TC_DXT1_Format:
return Math.floor( ( width + 3 ) / 4 ) * Math.floor( ( height + 3 ) / 4 ) * 8;
case RGBA_S3TC_DXT3_Format:
case RGBA_S3TC_DXT5_Format:
return Math.floor( ( width + 3 ) / 4 ) * Math.floor( ( height + 3 ) / 4 ) * 16;
// https://registry.khronos.org/webgl/extensions/WEBGL_compressed_texture_pvrtc/
case RGB_PVRTC_2BPPV1_Format:
case RGBA_PVRTC_2BPPV1_Format:
return ( Math.max( width, 16 ) * Math.max( height, 8 ) ) / 4;
case RGB_PVRTC_4BPPV1_Format:
case RGBA_PVRTC_4BPPV1_Format:
return ( Math.max( width, 8 ) * Math.max( height, 8 ) ) / 2;
// https://registry.khronos.org/webgl/extensions/WEBGL_compressed_texture_etc/
case RGB_ETC1_Format:
case RGB_ETC2_Format:
return Math.floor( ( width + 3 ) / 4 ) * Math.floor( ( height + 3 ) / 4 ) * 8;
case RGBA_ETC2_EAC_Format:
return Math.floor( ( width + 3 ) / 4 ) * Math.floor( ( height + 3 ) / 4 ) * 16;
// https://registry.khronos.org/webgl/extensions/WEBGL_compressed_texture_astc/
case RGBA_ASTC_4x4_Format:
return Math.floor( ( width + 3 ) / 4 ) * Math.floor( ( height + 3 ) / 4 ) * 16;
case RGBA_ASTC_5x4_Format:
return Math.floor( ( width + 4 ) / 5 ) * Math.floor( ( height + 3 ) / 4 ) * 16;
case RGBA_ASTC_5x5_Format:
return Math.floor( ( width + 4 ) / 5 ) * Math.floor( ( height + 4 ) / 5 ) * 16;
case RGBA_ASTC_6x5_Format:
return Math.floor( ( width + 5 ) / 6 ) * Math.floor( ( height + 4 ) / 5 ) * 16;
case RGBA_ASTC_6x6_Format:
return Math.floor( ( width + 5 ) / 6 ) * Math.floor( ( height + 5 ) / 6 ) * 16;
case RGBA_ASTC_8x5_Format:
return Math.floor( ( width + 7 ) / 8 ) * Math.floor( ( height + 4 ) / 5 ) * 16;
case RGBA_ASTC_8x6_Format:
return Math.floor( ( width + 7 ) / 8 ) * Math.floor( ( height + 5 ) / 6 ) * 16;
case RGBA_ASTC_8x8_Format:
return Math.floor( ( width + 7 ) / 8 ) * Math.floor( ( height + 7 ) / 8 ) * 16;
case RGBA_ASTC_10x5_Format:
return Math.floor( ( width + 9 ) / 10 ) * Math.floor( ( height + 4 ) / 5 ) * 16;
case RGBA_ASTC_10x6_Format:
return Math.floor( ( width + 9 ) / 10 ) * Math.floor( ( height + 5 ) / 6 ) * 16;
case RGBA_ASTC_10x8_Format:
return Math.floor( ( width + 9 ) / 10 ) * Math.floor( ( height + 7 ) / 8 ) * 16;
case RGBA_ASTC_10x10_Format:
return Math.floor( ( width + 9 ) / 10 ) * Math.floor( ( height + 9 ) / 10 ) * 16;
case RGBA_ASTC_12x10_Format:
return Math.floor( ( width + 11 ) / 12 ) * Math.floor( ( height + 9 ) / 10 ) * 16;
case RGBA_ASTC_12x12_Format:
return Math.floor( ( width + 11 ) / 12 ) * Math.floor( ( height + 11 ) / 12 ) * 16;
// https://registry.khronos.org/webgl/extensions/EXT_texture_compression_bptc/
case RGBA_BPTC_Format:
case RGB_BPTC_SIGNED_Format:
case RGB_BPTC_UNSIGNED_Format:
return Math.ceil( width / 4 ) * Math.ceil( height / 4 ) * 16;
// https://registry.khronos.org/webgl/extensions/EXT_texture_compression_rgtc/
case RED_RGTC1_Format:
case SIGNED_RED_RGTC1_Format:
return Math.ceil( width / 4 ) * Math.ceil( height / 4 ) * 8;
case RED_GREEN_RGTC2_Format:
case SIGNED_RED_GREEN_RGTC2_Format:
return Math.ceil( width / 4 ) * Math.ceil( height / 4 ) * 16;
}
throw new Error(
`Unable to determine texture byte length for ${format} format.`,
);
}
function getTextureTypeByteLength( type ) {
switch ( type ) {
case UnsignedByteType:
case ByteType:
return { byteLength: 1, components: 1 };
case UnsignedShortType:
case ShortType:
case HalfFloatType:
return { byteLength: 2, components: 1 };
case UnsignedShort4444Type:
case UnsignedShort5551Type:
return { byteLength: 2, components: 4 };
case UnsignedIntType:
case IntType:
case FloatType:
return { byteLength: 4, components: 1 };
case UnsignedInt5999Type:
return { byteLength: 4, components: 3 };
}
throw new Error( `Unknown texture type ${type}.` );
}
const TextureUtils = {
contain,
cover,
fill,
getByteLength
};
export { contain, cover, fill, getByteLength, TextureUtils };