Something went wrong. Try again.
[READ-ONLY] Mirror of https://github.com/flo-bit/shapecraft. flo-bit.dev/shapecraft
Something went wrong. Try again.
2.7 kB · 152 lines
JavaScript
at commit da69385e
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153function arrayMin( array ) {
if ( array.length === 0 ) return Infinity;
let min = array[ 0 ];
for ( let i = 1, l = array.length; i < l; ++ i ) {
if ( array[ i ] < min ) min = array[ i ];
}
return min;
}
function arrayMax( array ) {
if ( array.length === 0 ) return - Infinity;
let max = array[ 0 ];
for ( let i = 1, l = array.length; i < l; ++ i ) {
if ( array[ i ] > max ) max = array[ i ];
}
return max;
}
function arrayNeedsUint32( array ) {
// assumes larger values usually on last
for ( let i = array.length - 1; i >= 0; -- i ) {
if ( array[ i ] >= 65535 ) return true; // account for PRIMITIVE_RESTART_FIXED_INDEX, #24565
}
return false;
}
const TYPED_ARRAYS = { Int8Array: Int8Array, Uint8Array: Uint8Array, Uint8ClampedArray: Uint8ClampedArray, Int16Array: Int16Array, Uint16Array: Uint16Array, Int32Array: Int32Array, Uint32Array: Uint32Array, Float32Array: Float32Array, Float64Array: Float64Array};
function getTypedArray( type, buffer ) {
return new TYPED_ARRAYS[ type ]( buffer );
}
function createElementNS( name ) {
return document.createElementNS( 'http://www.w3.org/1999/xhtml', name );
}
function createCanvasElement() {
const canvas = createElementNS( 'canvas' ); canvas.style.display = 'block'; return canvas;
}
const _cache = {};
function warnOnce( message ) {
if ( message in _cache ) return;
_cache[ message ] = true;
console.warn( message );
}
function probeAsync( gl, sync, interval ) {
return new Promise( function ( resolve, reject ) {
function probe() {
switch ( gl.clientWaitSync( sync, gl.SYNC_FLUSH_COMMANDS_BIT, 0 ) ) {
case gl.WAIT_FAILED: reject(); break;
case gl.TIMEOUT_EXPIRED: setTimeout( probe, interval ); break;
default: resolve();
}
}
setTimeout( probe, interval );
} );
}
function toNormalizedProjectionMatrix( projectionMatrix ) {
const m = projectionMatrix.elements;
// Convert [-1, 1] to [0, 1] projection matrix m[ 2 ] = 0.5 * m[ 2 ] + 0.5 * m[ 3 ]; m[ 6 ] = 0.5 * m[ 6 ] + 0.5 * m[ 7 ]; m[ 10 ] = 0.5 * m[ 10 ] + 0.5 * m[ 11 ]; m[ 14 ] = 0.5 * m[ 14 ] + 0.5 * m[ 15 ];
}
function toReversedProjectionMatrix( projectionMatrix ) {
const m = projectionMatrix.elements; const isPerspectiveMatrix = m[ 11 ] === - 1;
// Reverse [0, 1] projection matrix if ( isPerspectiveMatrix ) {
m[ 10 ] = - m[ 10 ] - 1; m[ 14 ] = - m[ 14 ];
} else {
m[ 10 ] = - m[ 10 ]; m[ 14 ] = - m[ 14 ] + 1;
}
}
export { arrayMin, arrayMax, arrayNeedsUint32, getTypedArray, createElementNS, createCanvasElement, warnOnce, probeAsync, toNormalizedProjectionMatrix, toReversedProjectionMatrix };