mirror of
https://github.com/DanielnetoDotCom/YouPHPTube
synced 2025-10-04 18:29:39 +02:00
This commit is contained in:
Daniel Neto
parent
f0f62670c5
commit
7e26256cac
4563 changed files with 1246712 additions and 17558 deletions
475
node_modules/three/examples/js/loaders/RGBELoader.js
generated
vendored
Normal file
475
node_modules/three/examples/js/loaders/RGBELoader.js
generated
vendored
Normal file
|
|
@ -0,0 +1,475 @@
|
|||
// https://github.com/mrdoob/three.js/issues/5552
|
||||
// http://en.wikipedia.org/wiki/RGBE_image_format
|
||||
|
||||
THREE.RGBELoader = function ( manager ) {
|
||||
|
||||
THREE.DataTextureLoader.call( this, manager );
|
||||
|
||||
this.type = THREE.UnsignedByteType;
|
||||
|
||||
};
|
||||
|
||||
THREE.RGBELoader.prototype = Object.assign( Object.create( THREE.DataTextureLoader.prototype ), {
|
||||
|
||||
constructor: THREE.RGBELoader,
|
||||
|
||||
// adapted from http://www.graphics.cornell.edu/~bjw/rgbe.html
|
||||
|
||||
parse: function ( buffer ) {
|
||||
|
||||
var
|
||||
/* return codes for rgbe routines */
|
||||
//RGBE_RETURN_SUCCESS = 0,
|
||||
RGBE_RETURN_FAILURE = - 1,
|
||||
|
||||
/* default error routine. change this to change error handling */
|
||||
rgbe_read_error = 1,
|
||||
rgbe_write_error = 2,
|
||||
rgbe_format_error = 3,
|
||||
rgbe_memory_error = 4,
|
||||
rgbe_error = function ( rgbe_error_code, msg ) {
|
||||
|
||||
switch ( rgbe_error_code ) {
|
||||
|
||||
case rgbe_read_error: console.error( 'THREE.RGBELoader Read Error: ' + ( msg || '' ) );
|
||||
break;
|
||||
case rgbe_write_error: console.error( 'THREE.RGBELoader Write Error: ' + ( msg || '' ) );
|
||||
break;
|
||||
case rgbe_format_error: console.error( 'THREE.RGBELoader Bad File Format: ' + ( msg || '' ) );
|
||||
break;
|
||||
default:
|
||||
case rgbe_memory_error: console.error( 'THREE.RGBELoader: Error: ' + ( msg || '' ) );
|
||||
|
||||
}
|
||||
|
||||
return RGBE_RETURN_FAILURE;
|
||||
|
||||
},
|
||||
|
||||
/* offsets to red, green, and blue components in a data (float) pixel */
|
||||
//RGBE_DATA_RED = 0,
|
||||
//RGBE_DATA_GREEN = 1,
|
||||
//RGBE_DATA_BLUE = 2,
|
||||
|
||||
/* number of floats per pixel, use 4 since stored in rgba image format */
|
||||
//RGBE_DATA_SIZE = 4,
|
||||
|
||||
/* flags indicating which fields in an rgbe_header_info are valid */
|
||||
RGBE_VALID_PROGRAMTYPE = 1,
|
||||
RGBE_VALID_FORMAT = 2,
|
||||
RGBE_VALID_DIMENSIONS = 4,
|
||||
|
||||
NEWLINE = '\n',
|
||||
|
||||
fgets = function ( buffer, lineLimit, consume ) {
|
||||
|
||||
lineLimit = ! lineLimit ? 1024 : lineLimit;
|
||||
var p = buffer.pos,
|
||||
i = - 1, len = 0, s = '', chunkSize = 128,
|
||||
chunk = String.fromCharCode.apply( null, new Uint16Array( buffer.subarray( p, p + chunkSize ) ) )
|
||||
;
|
||||
while ( ( 0 > ( i = chunk.indexOf( NEWLINE ) ) ) && ( len < lineLimit ) && ( p < buffer.byteLength ) ) {
|
||||
|
||||
s += chunk; len += chunk.length;
|
||||
p += chunkSize;
|
||||
chunk += String.fromCharCode.apply( null, new Uint16Array( buffer.subarray( p, p + chunkSize ) ) );
|
||||
|
||||
}
|
||||
|
||||
if ( - 1 < i ) {
|
||||
|
||||
/*for (i=l-1; i>=0; i--) {
|
||||
byteCode = m.charCodeAt(i);
|
||||
if (byteCode > 0x7f && byteCode <= 0x7ff) byteLen++;
|
||||
else if (byteCode > 0x7ff && byteCode <= 0xffff) byteLen += 2;
|
||||
if (byteCode >= 0xDC00 && byteCode <= 0xDFFF) i--; //trail surrogate
|
||||
}*/
|
||||
if ( false !== consume ) buffer.pos += len + i + 1;
|
||||
return s + chunk.slice( 0, i );
|
||||
|
||||
}
|
||||
|
||||
return false;
|
||||
|
||||
},
|
||||
|
||||
/* minimal header reading. modify if you want to parse more information */
|
||||
RGBE_ReadHeader = function ( buffer ) {
|
||||
|
||||
var line, match,
|
||||
|
||||
// regexes to parse header info fields
|
||||
magic_token_re = /^#\?(\S+)/,
|
||||
gamma_re = /^\s*GAMMA\s*=\s*(\d+(\.\d+)?)\s*$/,
|
||||
exposure_re = /^\s*EXPOSURE\s*=\s*(\d+(\.\d+)?)\s*$/,
|
||||
format_re = /^\s*FORMAT=(\S+)\s*$/,
|
||||
dimensions_re = /^\s*\-Y\s+(\d+)\s+\+X\s+(\d+)\s*$/,
|
||||
|
||||
// RGBE format header struct
|
||||
header = {
|
||||
|
||||
valid: 0, /* indicate which fields are valid */
|
||||
|
||||
string: '', /* the actual header string */
|
||||
|
||||
comments: '', /* comments found in header */
|
||||
|
||||
programtype: 'RGBE', /* listed at beginning of file to identify it after "#?". defaults to "RGBE" */
|
||||
|
||||
format: '', /* RGBE format, default 32-bit_rle_rgbe */
|
||||
|
||||
gamma: 1.0, /* image has already been gamma corrected with given gamma. defaults to 1.0 (no correction) */
|
||||
|
||||
exposure: 1.0, /* a value of 1.0 in an image corresponds to <exposure> watts/steradian/m^2. defaults to 1.0 */
|
||||
|
||||
width: 0, height: 0 /* image dimensions, width/height */
|
||||
|
||||
};
|
||||
|
||||
if ( buffer.pos >= buffer.byteLength || ! ( line = fgets( buffer ) ) ) {
|
||||
|
||||
return rgbe_error( rgbe_read_error, 'no header found' );
|
||||
|
||||
}
|
||||
|
||||
/* if you want to require the magic token then uncomment the next line */
|
||||
if ( ! ( match = line.match( magic_token_re ) ) ) {
|
||||
|
||||
return rgbe_error( rgbe_format_error, 'bad initial token' );
|
||||
|
||||
}
|
||||
|
||||
header.valid |= RGBE_VALID_PROGRAMTYPE;
|
||||
header.programtype = match[ 1 ];
|
||||
header.string += line + '\n';
|
||||
|
||||
while ( true ) {
|
||||
|
||||
line = fgets( buffer );
|
||||
if ( false === line ) break;
|
||||
header.string += line + '\n';
|
||||
|
||||
if ( '#' === line.charAt( 0 ) ) {
|
||||
|
||||
header.comments += line + '\n';
|
||||
continue; // comment line
|
||||
|
||||
}
|
||||
|
||||
if ( match = line.match( gamma_re ) ) {
|
||||
|
||||
header.gamma = parseFloat( match[ 1 ], 10 );
|
||||
|
||||
}
|
||||
|
||||
if ( match = line.match( exposure_re ) ) {
|
||||
|
||||
header.exposure = parseFloat( match[ 1 ], 10 );
|
||||
|
||||
}
|
||||
|
||||
if ( match = line.match( format_re ) ) {
|
||||
|
||||
header.valid |= RGBE_VALID_FORMAT;
|
||||
header.format = match[ 1 ];//'32-bit_rle_rgbe';
|
||||
|
||||
}
|
||||
|
||||
if ( match = line.match( dimensions_re ) ) {
|
||||
|
||||
header.valid |= RGBE_VALID_DIMENSIONS;
|
||||
header.height = parseInt( match[ 1 ], 10 );
|
||||
header.width = parseInt( match[ 2 ], 10 );
|
||||
|
||||
}
|
||||
|
||||
if ( ( header.valid & RGBE_VALID_FORMAT ) && ( header.valid & RGBE_VALID_DIMENSIONS ) ) break;
|
||||
|
||||
}
|
||||
|
||||
if ( ! ( header.valid & RGBE_VALID_FORMAT ) ) {
|
||||
|
||||
return rgbe_error( rgbe_format_error, 'missing format specifier' );
|
||||
|
||||
}
|
||||
|
||||
if ( ! ( header.valid & RGBE_VALID_DIMENSIONS ) ) {
|
||||
|
||||
return rgbe_error( rgbe_format_error, 'missing image size specifier' );
|
||||
|
||||
}
|
||||
|
||||
return header;
|
||||
|
||||
},
|
||||
|
||||
RGBE_ReadPixels_RLE = function ( buffer, w, h ) {
|
||||
|
||||
var data_rgba, offset, pos, count, byteValue,
|
||||
scanline_buffer, ptr, ptr_end, i, l, off, isEncodedRun,
|
||||
scanline_width = w, num_scanlines = h, rgbeStart
|
||||
;
|
||||
|
||||
if (
|
||||
// run length encoding is not allowed so read flat
|
||||
( ( scanline_width < 8 ) || ( scanline_width > 0x7fff ) ) ||
|
||||
// this file is not run length encoded
|
||||
( ( 2 !== buffer[ 0 ] ) || ( 2 !== buffer[ 1 ] ) || ( buffer[ 2 ] & 0x80 ) )
|
||||
) {
|
||||
|
||||
// return the flat buffer
|
||||
return new Uint8Array( buffer );
|
||||
|
||||
}
|
||||
|
||||
if ( scanline_width !== ( ( buffer[ 2 ] << 8 ) | buffer[ 3 ] ) ) {
|
||||
|
||||
return rgbe_error( rgbe_format_error, 'wrong scanline width' );
|
||||
|
||||
}
|
||||
|
||||
data_rgba = new Uint8Array( 4 * w * h );
|
||||
|
||||
if ( ! data_rgba.length ) {
|
||||
|
||||
return rgbe_error( rgbe_memory_error, 'unable to allocate buffer space' );
|
||||
|
||||
}
|
||||
|
||||
offset = 0; pos = 0; ptr_end = 4 * scanline_width;
|
||||
rgbeStart = new Uint8Array( 4 );
|
||||
scanline_buffer = new Uint8Array( ptr_end );
|
||||
|
||||
// read in each successive scanline
|
||||
while ( ( num_scanlines > 0 ) && ( pos < buffer.byteLength ) ) {
|
||||
|
||||
if ( pos + 4 > buffer.byteLength ) {
|
||||
|
||||
return rgbe_error( rgbe_read_error );
|
||||
|
||||
}
|
||||
|
||||
rgbeStart[ 0 ] = buffer[ pos ++ ];
|
||||
rgbeStart[ 1 ] = buffer[ pos ++ ];
|
||||
rgbeStart[ 2 ] = buffer[ pos ++ ];
|
||||
rgbeStart[ 3 ] = buffer[ pos ++ ];
|
||||
|
||||
if ( ( 2 != rgbeStart[ 0 ] ) || ( 2 != rgbeStart[ 1 ] ) || ( ( ( rgbeStart[ 2 ] << 8 ) | rgbeStart[ 3 ] ) != scanline_width ) ) {
|
||||
|
||||
return rgbe_error( rgbe_format_error, 'bad rgbe scanline format' );
|
||||
|
||||
}
|
||||
|
||||
// read each of the four channels for the scanline into the buffer
|
||||
// first red, then green, then blue, then exponent
|
||||
ptr = 0;
|
||||
while ( ( ptr < ptr_end ) && ( pos < buffer.byteLength ) ) {
|
||||
|
||||
count = buffer[ pos ++ ];
|
||||
isEncodedRun = count > 128;
|
||||
if ( isEncodedRun ) count -= 128;
|
||||
|
||||
if ( ( 0 === count ) || ( ptr + count > ptr_end ) ) {
|
||||
|
||||
return rgbe_error( rgbe_format_error, 'bad scanline data' );
|
||||
|
||||
}
|
||||
|
||||
if ( isEncodedRun ) {
|
||||
|
||||
// a (encoded) run of the same value
|
||||
byteValue = buffer[ pos ++ ];
|
||||
for ( i = 0; i < count; i ++ ) {
|
||||
|
||||
scanline_buffer[ ptr ++ ] = byteValue;
|
||||
|
||||
}
|
||||
//ptr += count;
|
||||
|
||||
} else {
|
||||
|
||||
// a literal-run
|
||||
scanline_buffer.set( buffer.subarray( pos, pos + count ), ptr );
|
||||
ptr += count; pos += count;
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
|
||||
// now convert data from buffer into rgba
|
||||
// first red, then green, then blue, then exponent (alpha)
|
||||
l = scanline_width; //scanline_buffer.byteLength;
|
||||
for ( i = 0; i < l; i ++ ) {
|
||||
|
||||
off = 0;
|
||||
data_rgba[ offset ] = scanline_buffer[ i + off ];
|
||||
off += scanline_width; //1;
|
||||
data_rgba[ offset + 1 ] = scanline_buffer[ i + off ];
|
||||
off += scanline_width; //1;
|
||||
data_rgba[ offset + 2 ] = scanline_buffer[ i + off ];
|
||||
off += scanline_width; //1;
|
||||
data_rgba[ offset + 3 ] = scanline_buffer[ i + off ];
|
||||
offset += 4;
|
||||
|
||||
}
|
||||
|
||||
num_scanlines --;
|
||||
|
||||
}
|
||||
|
||||
return data_rgba;
|
||||
|
||||
};
|
||||
|
||||
var RGBEByteToRGBFloat = function ( sourceArray, sourceOffset, destArray, destOffset ) {
|
||||
|
||||
var e = sourceArray[ sourceOffset + 3 ];
|
||||
var scale = Math.pow( 2.0, e - 128.0 ) / 255.0;
|
||||
|
||||
destArray[ destOffset + 0 ] = sourceArray[ sourceOffset + 0 ] * scale;
|
||||
destArray[ destOffset + 1 ] = sourceArray[ sourceOffset + 1 ] * scale;
|
||||
destArray[ destOffset + 2 ] = sourceArray[ sourceOffset + 2 ] * scale;
|
||||
|
||||
};
|
||||
|
||||
var RGBEByteToRGBHalf = function ( sourceArray, sourceOffset, destArray, destOffset ) {
|
||||
|
||||
var e = sourceArray[ sourceOffset + 3 ];
|
||||
var scale = Math.pow( 2.0, e - 128.0 ) / 255.0;
|
||||
|
||||
destArray[ destOffset + 0 ] = THREE.DataUtils.toHalfFloat( sourceArray[ sourceOffset + 0 ] * scale );
|
||||
destArray[ destOffset + 1 ] = THREE.DataUtils.toHalfFloat( sourceArray[ sourceOffset + 1 ] * scale );
|
||||
destArray[ destOffset + 2 ] = THREE.DataUtils.toHalfFloat( sourceArray[ sourceOffset + 2 ] * scale );
|
||||
|
||||
};
|
||||
|
||||
var byteArray = new Uint8Array( buffer );
|
||||
byteArray.pos = 0;
|
||||
var rgbe_header_info = RGBE_ReadHeader( byteArray );
|
||||
|
||||
if ( RGBE_RETURN_FAILURE !== rgbe_header_info ) {
|
||||
|
||||
var w = rgbe_header_info.width,
|
||||
h = rgbe_header_info.height,
|
||||
image_rgba_data = RGBE_ReadPixels_RLE( byteArray.subarray( byteArray.pos ), w, h );
|
||||
|
||||
if ( RGBE_RETURN_FAILURE !== image_rgba_data ) {
|
||||
|
||||
switch ( this.type ) {
|
||||
|
||||
case THREE.UnsignedByteType:
|
||||
|
||||
var data = image_rgba_data;
|
||||
var format = THREE.RGBEFormat; // handled as THREE.RGBAFormat in shaders
|
||||
var type = THREE.UnsignedByteType;
|
||||
break;
|
||||
|
||||
case THREE.FloatType:
|
||||
|
||||
var numElements = ( image_rgba_data.length / 4 ) * 3;
|
||||
var floatArray = new Float32Array( numElements );
|
||||
|
||||
for ( var j = 0; j < numElements; j ++ ) {
|
||||
|
||||
RGBEByteToRGBFloat( image_rgba_data, j * 4, floatArray, j * 3 );
|
||||
|
||||
}
|
||||
|
||||
var data = floatArray;
|
||||
var format = THREE.RGBFormat;
|
||||
var type = THREE.FloatType;
|
||||
break;
|
||||
|
||||
case THREE.HalfFloatType:
|
||||
|
||||
var numElements = ( image_rgba_data.length / 4 ) * 3;
|
||||
var halfArray = new Uint16Array( numElements );
|
||||
|
||||
for ( var j = 0; j < numElements; j ++ ) {
|
||||
|
||||
RGBEByteToRGBHalf( image_rgba_data, j * 4, halfArray, j * 3 );
|
||||
|
||||
}
|
||||
|
||||
var data = halfArray;
|
||||
var format = THREE.RGBFormat;
|
||||
var type = THREE.HalfFloatType;
|
||||
break;
|
||||
|
||||
default:
|
||||
|
||||
console.error( 'THREE.RGBELoader: unsupported type: ', this.type );
|
||||
break;
|
||||
|
||||
}
|
||||
|
||||
return {
|
||||
width: w, height: h,
|
||||
data: data,
|
||||
header: rgbe_header_info.string,
|
||||
gamma: rgbe_header_info.gamma,
|
||||
exposure: rgbe_header_info.exposure,
|
||||
format: format,
|
||||
type: type
|
||||
};
|
||||
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
return null;
|
||||
|
||||
},
|
||||
|
||||
setDataType: function ( value ) {
|
||||
|
||||
this.type = value;
|
||||
return this;
|
||||
|
||||
},
|
||||
|
||||
load: function ( url, onLoad, onProgress, onError ) {
|
||||
|
||||
function onLoadCallback( texture, texData ) {
|
||||
|
||||
switch ( texture.type ) {
|
||||
|
||||
case THREE.UnsignedByteType:
|
||||
|
||||
texture.encoding = THREE.RGBEEncoding;
|
||||
texture.minFilter = THREE.NearestFilter;
|
||||
texture.magFilter = THREE.NearestFilter;
|
||||
texture.generateMipmaps = false;
|
||||
texture.flipY = true;
|
||||
break;
|
||||
|
||||
case THREE.FloatType:
|
||||
|
||||
texture.encoding = THREE.LinearEncoding;
|
||||
texture.minFilter = THREE.LinearFilter;
|
||||
texture.magFilter = THREE.LinearFilter;
|
||||
texture.generateMipmaps = false;
|
||||
texture.flipY = true;
|
||||
break;
|
||||
|
||||
case THREE.HalfFloatType:
|
||||
|
||||
texture.encoding = THREE.LinearEncoding;
|
||||
texture.minFilter = THREE.LinearFilter;
|
||||
texture.magFilter = THREE.LinearFilter;
|
||||
texture.generateMipmaps = false;
|
||||
texture.flipY = true;
|
||||
break;
|
||||
|
||||
}
|
||||
|
||||
if ( onLoad ) onLoad( texture, texData );
|
||||
|
||||
}
|
||||
|
||||
return THREE.DataTextureLoader.prototype.load.call( this, url, onLoadCallback, onProgress, onError );
|
||||
|
||||
}
|
||||
|
||||
} );
|
||||
Loading…
Add table
Add a link
Reference in a new issue