596 lines
16 KiB
HTML
596 lines
16 KiB
HTML
<html>
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<head>
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<script src="renderer.js"></script>
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<script src="dxt-to-rgb565.js"></script>
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<script src="../encoder/build/basis_encoder.js"></script>
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<script type="text/javascript">
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function log(s) {
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var div = document.createElement('div');
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div.innerHTML = s;
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document.getElementById('logger').appendChild(div);
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}
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function logTime(desc, t) {
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log(t + 'ms ' + desc);
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}
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function isDef(v) {
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return typeof v != 'undefined';
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}
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function elem(id) {
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return document.getElementById(id);
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}
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formatTable = function(rows) {
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var colLengths = [];
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for (var i = 0; i < rows.length; i++) {
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var row = rows[i];
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for (var j = 0; j < row.length; j++) {
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if (colLengths.length <= j) colLengths.push(0);
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if (colLengths[j] < row[j].length) colLengths[j] = row[j].length;
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}
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}
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function formatRow(row) {
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var parts = [];
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for (var i = 0; i < colLengths.length; i++) {
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var s = row.length > i ? row[i] : '';
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var padding = (new Array(1 + colLengths[i] - s.length)).join(' ');
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if (s && s[0] >= '0' && s[0] <= '9') {
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// Right-align numbers.
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parts.push(padding + s);
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} else {
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parts.push(s + padding);
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}
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}
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return parts.join(' | ');
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}
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var width = 0;
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for (var i = 0; i < colLengths.length; i++) {
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width += colLengths[i];
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// Add another 3 for the separator.
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if (i != 0) width += 3;
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}
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var lines = [];
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lines.push(formatRow(rows[0]));
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lines.push((new Array(width + 1)).join('-'));
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for (var i = 1; i < rows.length; i++) {
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lines.push(formatRow(rows[i]));
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}
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return lines.join('\n');
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};
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function loadArrayBuffer(uri, callback) {
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log('Loading ' + uri + '...');
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var xhr = new XMLHttpRequest();
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xhr.responseType = "arraybuffer";
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xhr.open('GET', uri, true);
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xhr.onreadystatechange = function(e) {
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if (xhr.readyState == 4 && xhr.status == 200) {
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callback(xhr.response);
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}
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}
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xhr.send(null);
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}
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// ASTC format, from:
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// https://www.khronos.org/registry/webgl/extensions/WEBGL_compressed_texture_astc/
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COMPRESSED_RGBA_ASTC_4x4_KHR = 0x93B0;
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// DXT formats, from:
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// http://www.khronos.org/registry/webgl/extensions/WEBGL_compressed_texture_s3tc/
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COMPRESSED_RGB_S3TC_DXT1_EXT = 0x83F0;
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COMPRESSED_RGBA_S3TC_DXT1_EXT = 0x83F1;
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COMPRESSED_RGBA_S3TC_DXT3_EXT = 0x83F2;
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COMPRESSED_RGBA_S3TC_DXT5_EXT = 0x83F3;
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// BC7 format, from:
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// https://www.khronos.org/registry/webgl/extensions/EXT_texture_compression_bptc/
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COMPRESSED_RGBA_BPTC_UNORM = 0x8E8C;
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// ETC format, from:
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// https://www.khronos.org/registry/webgl/extensions/WEBGL_compressed_texture_etc1/
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COMPRESSED_RGB_ETC1_WEBGL = 0x8D64;
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// PVRTC format, from:
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// https://www.khronos.org/registry/webgl/extensions/WEBGL_compressed_texture_pvrtc/
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COMPRESSED_RGB_PVRTC_4BPPV1_IMG = 0x8C00;
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COMPRESSED_RGBA_PVRTC_4BPPV1_IMG = 0x8C02;
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// Same as the Module.transcoder_texture_format enum
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BASIS_FORMAT = {
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cTFETC1: 0,
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cTFETC2: 1,
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cTFBC1: 2,
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cTFBC3: 3,
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cTFBC4: 4,
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cTFBC5: 5,
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cTFBC7: 6,
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cTFPVRTC1_4_RGB: 8,
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cTFPVRTC1_4_RGBA: 9,
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cTFASTC_4x4: 10,
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cTFATC_RGB: 11,
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cTFATC_RGBA_INTERPOLATED_ALPHA: 12,
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cTFRGBA32: 13,
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cTFRGB565: 14,
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cTFBGR565: 15,
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cTFRGBA4444: 16,
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cTFFXT1_RGB: 17,
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cTFPVRTC2_4_RGB: 18,
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cTFPVRTC2_4_RGBA: 19,
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cTFETC2_EAC_R11: 20,
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cTFETC2_EAC_RG11: 21
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};
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BASIS_FORMAT_NAMES = {};
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for (var name in BASIS_FORMAT) {
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BASIS_FORMAT_NAMES[BASIS_FORMAT[name]] = name;
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}
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DXT_FORMAT_MAP = {};
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DXT_FORMAT_MAP[BASIS_FORMAT.cTFBC1] = COMPRESSED_RGB_S3TC_DXT1_EXT;
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DXT_FORMAT_MAP[BASIS_FORMAT.cTFBC3] = COMPRESSED_RGBA_S3TC_DXT5_EXT;
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DXT_FORMAT_MAP[BASIS_FORMAT.cTFBC7] = COMPRESSED_RGBA_BPTC_UNORM;
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var astcSupported = false;
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var etcSupported = false;
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var dxtSupported = false;
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var bc7Supported = false;
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var pvrtcSupported = false;
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var drawMode = 0;
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var tex, width, height, images, levels, have_alpha, alignedWidth, alignedHeight, format, displayWidth, displayHeight;
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function redraw()
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{
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if (!width)
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return;
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renderer.drawTexture(tex, displayWidth, displayHeight, drawMode);
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}
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function dumpBasisFileDesc(basisFile)
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{
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var basisFileDesc = basisFile.getFileDesc();
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log('------');
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log('getFileDesc():');
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log('version: ' + basisFileDesc.version);
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log('us per frame: ' + basisFileDesc.usPerFrame);
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log('total images: ' + basisFileDesc.totalImages);
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log('userdata0: ' + basisFileDesc.userdata0 + ' userdata1: ' + basisFileDesc.userdata1);
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log('texFormat: ' + basisFileDesc.texFormat);
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log('yFlipped: ' + basisFileDesc.yFlipped + ' hasAlphaSlices: ' + basisFileDesc.hasAlphaSlices);
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if (basisFileDesc.texFormat == Module.basis_tex_format.cETC1S.value)
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{
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log('numEndpoints: ' + basisFileDesc.numEndpoints);
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log('endpointPaletteOfs: ' + basisFileDesc.endpointPaletteOfs);
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log('endpointPaletteLen: ' + basisFileDesc.endpointPaletteLen);
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log('numSelectors: ' + basisFileDesc.numSelectors);
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log('selectorPaletteOfs: ' + basisFileDesc.selectorPaletteOfs);
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log('selectorPaletteLen: ' + basisFileDesc.selectorPaletteLen);
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log('tablesOfs: ' + basisFileDesc.tablesOfs);
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log('tablesLen: ' + basisFileDesc.tablesLen);
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}
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log('------');
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log('getImageDesc() for all images:');
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var image_index;
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for (image_index = 0; image_index < basisFileDesc.totalImages; image_index++)
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{
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log('image: ' + image_index);
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var basisImageDesc = basisFile.getImageDesc(image_index);
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log('origWidth: ' + basisImageDesc.origWidth + ' origWidth: ' + basisImageDesc.origHeight);
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log('numBlocksX: ' + basisImageDesc.numBlocksX + ' origWidth: ' + basisImageDesc.numBlocksY);
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log('numLevels: ' + basisImageDesc.numLevels);
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log('alphaFlag: ' + basisImageDesc.alphaFlag + ' iframeFlag: ' + basisImageDesc.iframeFlag);
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log('getImageLevelDesc() for all mipmap levels:');
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var level_index;
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for (level_index = 0; level_index < basisImageDesc.numLevels; level_index++)
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{
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var basisImageLevelDesc = basisFile.getImageLevelDesc(image_index, level_index);
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log('level: ' + level_index +
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' rgb_file_offset: ' + basisImageLevelDesc.rgbFileOfs + ' rgb_file_len: ' + basisImageLevelDesc.rgbFileLen);
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if (basisFileDesc.hasAlphaSlices)
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log('alpha_file_offset: ' + basisImageLevelDesc.alphaFileOfs + ' alpha_file_len: ' + basisImageLevelDesc.alphaFileLen);
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}
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}
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log('------');
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}
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function dataLoaded(data)
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{
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log('Done loading .basis file, decoded header:');
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const { BasisFile, initializeBasis, encodeBasisTexture } = Module;
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initializeBasis();
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const startTime = performance.now();
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const basisFile = new BasisFile(new Uint8Array(data));
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width = basisFile.getImageWidth(0, 0);
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height = basisFile.getImageHeight(0, 0);
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images = basisFile.getNumImages();
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levels = basisFile.getNumLevels(0);
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has_alpha = basisFile.getHasAlpha();
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dumpBasisFileDesc(basisFile);
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if (!width || !height || !images || !levels) {
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console.warn('Invalid .basis file');
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basisFile.close();
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basisFile.delete();
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return;
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}
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// Note: If the file is UASTC, the preferred formats are ASTC/BC7.
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// If the file is ETC1S and doesn't have alpha, the preferred formats are ETC1 and BC1. For alpha, the preferred formats are ETC2, BC3 or BC7.
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var formatString = 'UNKNOWN';
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if (astcSupported)
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{
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formatString = 'ASTC';
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format = BASIS_FORMAT.cTFASTC_4x4;
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}
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else if (bc7Supported)
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{
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formatString = 'BC7';
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format = BASIS_FORMAT.cTFBC7;
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}
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else if (dxtSupported)
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{
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if (has_alpha)
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{
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formatString = 'BC3';
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format = BASIS_FORMAT.cTFBC3;
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}
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else
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{
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formatString = 'BC1';
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format = BASIS_FORMAT.cTFBC1;
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}
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}
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else if (pvrtcSupported)
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{
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if (has_alpha)
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{
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formatString = 'PVRTC1_RGBA';
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format = BASIS_FORMAT.cTFPVRTC1_4_RGBA;
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}
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else
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{
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formatString = 'PVRTC1_RGB';
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format = BASIS_FORMAT.cTFPVRTC1_4_RGB;
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}
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if (
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((width & (width - 1)) != 0) || ((height & (height - 1)) != 0)
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)
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{
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log('ERROR: PVRTC1 requires square power of 2 textures');
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}
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if (width != height)
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{
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log('ERROR: PVRTC1 requires square power of 2 textures');
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}
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}
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else if (etcSupported)
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{
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formatString = 'ETC1';
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format = BASIS_FORMAT.cTFETC1;
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}
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else
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{
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formatString = 'RGB565';
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format = BASIS_FORMAT.cTFRGB565;
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log('Decoding .basis data to 565');
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}
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elem('format').innerText = formatString;
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if (!basisFile.startTranscoding()) {
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log('startTranscoding failed');
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console.warn('startTranscoding failed');
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basisFile.close();
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basisFile.delete();
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return;
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}
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const dstSize = basisFile.getImageTranscodedSizeInBytes(0, 0, format);
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const dst = new Uint8Array(dstSize);
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//log(dstSize);
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// if (!basisFile.transcodeImage(dst, 0, 0, format, 1, 0)) {
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if (!basisFile.transcodeImage(dst, 0, 0, format, 0, 0)) {
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log('basisFile.transcodeImage failed');
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console.warn('transcodeImage failed');
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basisFile.close();
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basisFile.delete();
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return;
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}
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const elapsed = performance.now() - startTime;
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basisFile.close();
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basisFile.delete();
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log('width: ' + width);
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log('height: ' + height);
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log('images: ' + images);
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log('first image mipmap levels: ' + levels);
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log('has_alpha: ' + has_alpha);
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logTime('transcoding time', elapsed.toFixed(2));
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alignedWidth = (width + 3) & ~3;
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alignedHeight = (height + 3) & ~3;
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displayWidth = alignedWidth;
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displayHeight = alignedHeight;
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var canvas = elem('canvas');
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canvas.width = alignedWidth;
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canvas.height = alignedHeight;
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if (format === BASIS_FORMAT.cTFASTC_4x4)
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{
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tex = renderer.createCompressedTexture(dst, alignedWidth, alignedHeight, COMPRESSED_RGBA_ASTC_4x4_KHR);
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}
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else if ((format === BASIS_FORMAT.cTFBC3) || (format === BASIS_FORMAT.cTFBC1) || (format == BASIS_FORMAT.cTFBC7))
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{
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tex = renderer.createCompressedTexture(dst, alignedWidth, alignedHeight, DXT_FORMAT_MAP[format]);
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}
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else if (format === BASIS_FORMAT.cTFETC1)
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{
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tex = renderer.createCompressedTexture(dst, alignedWidth, alignedHeight, COMPRESSED_RGB_ETC1_WEBGL);
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}
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else if (format === BASIS_FORMAT.cTFPVRTC1_4_RGB)
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{
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tex = renderer.createCompressedTexture(dst, alignedWidth, alignedHeight, COMPRESSED_RGB_PVRTC_4BPPV1_IMG);
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}
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else if (format === BASIS_FORMAT.cTFPVRTC1_4_RGBA)
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{
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tex = renderer.createCompressedTexture(dst, alignedWidth, alignedHeight, COMPRESSED_RGBA_PVRTC_4BPPV1_IMG);
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}
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else
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{
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canvas.width = width;
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canvas.height = height;
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displayWidth = width;
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displayHeight = height;
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// Create 565 texture.
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var dstTex = new Uint16Array(width * height);
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// Convert the array of bytes to an array of uint16's.
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var pix = 0;
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for (var y = 0; y < height; y++)
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for (var x = 0; x < width; x++, pix++)
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dstTex[pix] = dst[2 * pix + 0] | (dst[2 * pix + 1] << 8);
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tex = renderer.createRgb565Texture(dstTex, width, height);
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}
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redraw();
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}
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function download_file(filename, body)
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{
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var element = document.createElement('a');
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//element.setAttribute('href', 'data:text/plain;charset=utf-8,' + encodeURIComponent(text));
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const blob = new Blob([body]);
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const url = URL.createObjectURL(blob);
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element.setAttribute('href', url);
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element.setAttribute('download', filename);
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element.style.display = 'none';
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document.body.appendChild(element);
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element.click();
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document.body.removeChild(element);
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}
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var encodedBasisFile;
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function PNGDataLoaded(data)
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{
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const { BasisFile, BasisEncoder, initializeBasis, encodeBasisTexture } = Module;
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initializeBasis();
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// Create a destination buffer to hold the compressed .basis file data. If this buffer isn't large enough compression will fail.
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var basisFileData = new Uint8Array(1024*1024*10);
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var num_output_bytes;
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// Compress using the BasisEncoder class.
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log('BasisEncoder::encode() started:');
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const basisEncoder = new BasisEncoder();
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const qualityLevel = parseInt(elem('EncodeQuality').value, 10);
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const uastcFlag = elem('EncodeUASTC').checked;
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basisEncoder.setSliceSourceImage(0, new Uint8Array(data), 0, 0, true);
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basisEncoder.setDebug(elem('Debug').checked);
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basisEncoder.setComputeStats(elem('ComputeStats').checked);
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basisEncoder.setPerceptual(elem('SRGB').checked);
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basisEncoder.setMipSRGB(elem('SRGB').checked);
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basisEncoder.setQualityLevel(qualityLevel);
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basisEncoder.setUASTC(uastcFlag);
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basisEncoder.setMipGen(elem('Mipmaps').checked);
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if (!uastcFlag)
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log('Encoding at ETC1S quality level ' + qualityLevel);
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const startTime = performance.now();
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num_output_bytes = basisEncoder.encode(basisFileData);
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const elapsed = performance.now() - startTime;
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logTime('encoding time', elapsed.toFixed(2));
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var actualBasisFileData = new Uint8Array(basisFileData.buffer, 0, num_output_bytes);
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basisEncoder.delete();
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if (num_output_bytes == 0)
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{
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log('encodeBasisTexture() failed!');
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}
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else
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{
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log('encodeBasisTexture() succeeded, output size ' + num_output_bytes);
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encodedBasisFile = actualBasisFileData;
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//download("test.basis", actualBasisFileData);
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}
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if (num_output_bytes != 0)
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{
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dataLoaded(actualBasisFileData);
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}
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}
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function runLoadFile() {
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elem('logger').innerHTML = '';
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loadArrayBuffer(elem('file').value, dataLoaded);
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}
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function runEncodePNGFile() {
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elem('logger').innerHTML = '';
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loadArrayBuffer(elem('pngfile').value, PNGDataLoaded);
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}
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function alphaBlend() { drawMode = 0; redraw(); }
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function viewRGB() { drawMode = 1; redraw(); }
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function viewAlpha() { drawMode = 2; redraw(); }
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function downloadEncodedFile()
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{
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if (encodedBasisFile)
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{
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if (encodedBasisFile.length)
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download_file("encoded_file.basis", encodedBasisFile);
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}
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}
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</script>
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</head>
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<body>
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<br>
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<div style="font-size: 24pt; font-weight: bold">
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Basis Universal compressed texture transcoding and encoding test
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</div>
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<br>This demo uses the Basis C++ transcoder (compiled to Javascript using Emscripten) to transcode a .basis file to <b id='format'>FORMAT</b>
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<br>Thanks to Evan Parker for providing <a href="https://github.com/toji/webgl-texture-utils">webgl-texture-utils</a> and this test bed.
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<br>
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<br>
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.basis file:
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<input id="file" type="text" size=30 value="assets/kodim26_uastc_1024.basis"></input>
|
|
<input type="button" value="Transcode!" onclick="runLoadFile()"></input>
|
|
<br>
|
|
|
|
<br>
|
|
.png file:
|
|
<input id="pngfile" type="text" size=30 value="assets/kodim18_64x64.png"></input>
|
|
<input type="button" value="Encode!" onclick="runEncodePNGFile()"></input>
|
|
<br>
|
|
<input type="button" value="Download Encoded .basis File" onclick="downloadEncodedFile()">
|
|
<br>
|
|
Debug:
|
|
<input type="checkbox" id="Debug">
|
|
<br>
|
|
Compute Stats:
|
|
<input type="checkbox" id="ComputeStats">
|
|
<br>
|
|
sRGB:
|
|
<input type="checkbox" id="SRGB">
|
|
<br>
|
|
Mipmaps:
|
|
<input type="checkbox" id="Mipmaps">
|
|
<br>
|
|
UASTC:
|
|
<input type="checkbox" id="EncodeUASTC">
|
|
|
|
|
|
<br>
|
|
|
|
ETC1S Quality:
|
|
<input type="range" min="1" max="255" value="10" class="slider" id="EncodeQuality">
|
|
|
|
<br>
|
|
|
|
<br>
|
|
<input type="button" value="Alpha blend" onclick="alphaBlend()"></input>
|
|
<input type="button" value="View RGB" onclick="viewRGB()"></input>
|
|
<input type="button" value="View Alpha" onclick="viewAlpha()"></input>
|
|
|
|
<div style="position:absolute; left: 525px; top:130px; font-size: 20pt; font-weight: bold; color: red">
|
|
<div id="no-compressed-tex" style="display: none; width: 768px; font-size: 20pt; font-weight: bold; color: red">
|
|
NOTE: Your browser does not support several compressed texture format, so using RGB565.
|
|
</div>
|
|
<canvas id='canvas'></canvas>
|
|
</div>
|
|
<br><br>
|
|
<div id='logger'></div>
|
|
</body>
|
|
<script>
|
|
BASIS({onRuntimeInitialized : () => {
|
|
|
|
elem('SRGB').checked = true;
|
|
|
|
var gl = elem('canvas').getContext('webgl');
|
|
|
|
astcSupported = !!gl.getExtension('WEBGL_compressed_texture_astc');
|
|
etcSupported = !!gl.getExtension('WEBGL_compressed_texture_etc1');
|
|
dxtSupported = !!gl.getExtension('WEBGL_compressed_texture_s3tc');
|
|
pvrtcSupported = !!(gl.getExtension('WEBGL_compressed_texture_pvrtc')) || !!(gl.getExtension('WEBKIT_WEBGL_compressed_texture_pvrtc'));
|
|
bc7Supported = !!gl.getExtension('EXT_texture_compression_bptc');
|
|
|
|
// HACK HACK - for testing uncompressed
|
|
//astcSupported = false;
|
|
//etcSupported = false;
|
|
//dxtSupported = false;
|
|
//bc7Supported = false;
|
|
//pvrtcSupported = false;
|
|
|
|
window.renderer = new Renderer(gl);
|
|
|
|
elem('file').addEventListener('keydown', function(e) {
|
|
if (e.keyCode == 13) {
|
|
runLoadFile();
|
|
}
|
|
}, false);
|
|
|
|
if (!(astcSupported || etcSupported || dxtSupported || pvrtcSupported))
|
|
{
|
|
// elem('nodxt').style.display = 'block';
|
|
}
|
|
|
|
runLoadFile();
|
|
}}).then(module => window.Module = module);
|
|
</script>
|
|
</html>
|