mirror of
https://github.com/BinomialLLC/basis_universal.git
synced 2026-06-08 00:23:52 +00:00
722 lines
22 KiB
HTML
722 lines
22 KiB
HTML
<!--
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Simple .basis file transcode tester.
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Supports numerous texture formats: ETC1, PVRTC1, BC1-BC7, BC6H, ASTC LDR/HDR, and various uncompressed fallbacks.
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-->
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<!doctype html>
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<html>
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<head>
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<script src="renderer.js"></script>
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<script src="../transcoder/build/basis_transcoder.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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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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// BC6H/BC7 formats, 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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COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT_EXT = 0x8E8F;
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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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// Half float RGBA, from:
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// https://registry.khronos.org/webgl/extensions/OES_texture_half_float/
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HALF_FLOAT_OES = 0x8D61;
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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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cTFBC6H: 22,
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cTFASTC_HDR_4x4_RGBA: 23,
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cTFRGB_HALF: 24,
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cTFRGBA_HALF: 25,
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cTFRGB_9E5: 26
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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 bc6hSupported = false;
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var astcHDRSupported = false;
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var rgbaHalfSupported = false;
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var halfFloatWebGLFormat = 0;
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var pvrtcSupported = false;
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var drawMode = 0;
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var drawScale = 1.0;
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var linearToSRGBFlag = false;
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var tex, width, height, images, levels, has_alpha, is_hdr;
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var 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, drawScale, linearToSRGBFlag);
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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 } = Module;
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drawMode = 0;
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drawScale = 1.0;
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linearToSRGBFlag = false;
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elem('scale-slider').value = 1.0;
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elem('scale-value').textContent = 1;
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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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is_hdr = basisFile.isHDR();
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log('isHDR: ' + is_hdr);
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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 LDR, the preferred formats are ASTC/BC7. For UASTC HDR, ASTC/BC6H.
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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 (is_hdr)
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{
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if (bc6hSupported)
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{
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formatString = 'BC6H';
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format = BASIS_FORMAT.cTFBC6H;
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}
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else if (astcHDRSupported)
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{
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formatString = 'ASTC HDR';
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format = BASIS_FORMAT.cTFASTC_HDR_4x4_RGBA;
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}
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else if (rgbaHalfSupported)
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{
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formatString = 'RGBA_HALF';
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format = BASIS_FORMAT.cTFRGBA_HALF;
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}
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else
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{
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formatString = '32-bit RGBA';
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format = BASIS_FORMAT.cTFRGBA_HALF;
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log('Decoding .basis data to 32-bit RGBA');
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}
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}
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else 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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log('format: ' + format);
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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 isUncompressedFormat = Module.formatIsUncompressed(format);
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const blockWidth = isUncompressedFormat ? 1 : 4, blockHeight = isUncompressedFormat ? 1 : 4;
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const bytesPerBlockOrPixel = Module.getBytesPerBlockOrPixel(format);
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log('isUncompressedFormat: ' + isUncompressedFormat + ' bytesPerBlockOrPixel: ' + bytesPerBlockOrPixel);
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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('getImageTranscodedSizeInBytes() returned ' + dstSize);
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// Use the low or high level transcoding API's. The high level API's require .basis files, while the low-level API's just work off blobs of memory and parameters.
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if (elem('ContainerIndependentTranscoding').checked)
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{
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// Always transcode the first image and the first mipmap level
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const image_index = 0;
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const level_index = 0;
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// Get the .basis file description
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var basisFileDesc = basisFile.getFileDesc();
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// Get the description of the file's first image (there could be multiple images, for texture arrays or videos)
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var basisImageDesc = basisFile.getImageDesc(image_index);
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// Get the description of this image's mipmap level
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var basisImageLevelDesc = basisFile.getImageLevelDesc(image_index, level_index);
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var status = false;
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// If we're transcoding to ETC1S, use the LowLevelETC1SImageTranscoder class. Otherwise use the transcodeUASTCImage() function.
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if (basisFileDesc.texFormat == Module.basis_tex_format.cETC1S.value)
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{
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// Create an instance of the LowLevelETC1SImageTranscoder class.
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const etc1s_transcoder = new Module.LowLevelETC1SImageTranscoder();
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// Create Uint8Array's pointing into the various bits of the .basis file holding the compressed data for the codebooks and the Huffman tables.
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var selectorPalette = new Uint8Array(data, basisFileDesc.selectorPaletteOfs, basisFileDesc.selectorPaletteLen);
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var endpointPalette = new Uint8Array(data, basisFileDesc.endpointPaletteOfs, basisFileDesc.endpointPaletteLen);
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var tables = new Uint8Array(data, basisFileDesc.tablesOfs, basisFileDesc.tablesLen);
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// Create a Uint8Array pointing to the image's compressed data.
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// If it's an opaque .basis file, there will only be RGB data. For transparant .basis files, each RGB slice will be immediately followed by an alpha slice.
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// Compressed ETC1S alpha data is guaranteed to immediately follow the RGB data (it's always at odd slices in the .basis file).
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var compData = new Uint8Array(data, basisImageLevelDesc.rgbFileOfs, basisImageLevelDesc.rgbFileLen + basisImageLevelDesc.alphaFileLen);
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// Decompress the palettes. This only has to be done once for each .basis file.
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var status = etc1s_transcoder.decodePalettes(basisFileDesc.numEndpoints, endpointPalette, basisFileDesc.numSelectors, selectorPalette);
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if (status)
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{
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// Decompress the Huffman tables. This only has to be done once for each .basis file.
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status = etc1s_transcoder.decodeTables(tables);
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if (status)
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{
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// Now transcode the image using the container independent transcode API. This API does not interpret any .basis file structures - only the compressed ETC1S data.
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status = etc1s_transcoder.transcodeImage(
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format,
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dst, dstSize / bytesPerBlockOrPixel,
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compData,
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basisImageDesc.numBlocksX, basisImageDesc.numBlocksY, basisImageDesc.origWidth, basisImageDesc.origHeight, level_index,
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0, basisImageLevelDesc.rgbFileLen, basisFileDesc.hasAlphaSlices ? basisImageLevelDesc.rgbFileLen : 0, basisImageLevelDesc.alphaFileLen,
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0,
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basisFileDesc.hasAlphaSlices,
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basisFileDesc.isVideo,
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0,
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0);
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if (!status)
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log('transcodeImage() failed');
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}
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else
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{
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log('decodeTables() failed');
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}
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}
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else
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{
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log('decodePalettes() failed');
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}
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etc1s_transcoder.delete();
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if (!status)
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{
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log('etc1s_transcoder failed');
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console.warn('etc1s_transcoder 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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else
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{
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log('Successfully called etc1s_transcoder.transcodeImage()');
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}
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}
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else
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{
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// Create a Uint8Array pointing to the image's compressed data.
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var compData = new Uint8Array(data, basisImageLevelDesc.rgbFileOfs, basisImageLevelDesc.rgbFileLen);
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// Transcode the UASTC texture data to the desired output format.
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status = Module.transcodeUASTCImage(
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format,
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dst, dstSize / bytesPerBlockOrPixel,
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compData,
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basisImageDesc.numBlocksX, basisImageDesc.numBlocksY, basisImageDesc.origWidth, basisImageDesc.origHeight, level_index,
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0, basisImageLevelDesc.rgbFileLen,
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0,
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basisFileDesc.hasAlphaSlices,
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basisFileDesc.isVideo,
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0,
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0,
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-1, -1);
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if (!status)
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{
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log('transcodeUASTCImage() failed');
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console.warn('transcodeUASTCImage() 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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else
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{
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log('Successfully called transcodeUASTCImage()');
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}
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}
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}
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else
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{
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// Use the high-level transcode API, which requires a .basis file.
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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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}
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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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// Create the WebGL texture object.
|
|
if ((format === BASIS_FORMAT.cTFASTC_4x4) || (format === BASIS_FORMAT.cTFASTC_HDR_4x4_RGBA))
|
|
{
|
|
tex = renderer.createCompressedTexture(dst, alignedWidth, alignedHeight, COMPRESSED_RGBA_ASTC_4x4_KHR);
|
|
}
|
|
else if ((format === BASIS_FORMAT.cTFBC3) || (format === BASIS_FORMAT.cTFBC1) || (format == BASIS_FORMAT.cTFBC7))
|
|
{
|
|
tex = renderer.createCompressedTexture(dst, alignedWidth, alignedHeight, DXT_FORMAT_MAP[format]);
|
|
}
|
|
else if (format === BASIS_FORMAT.cTFETC1)
|
|
{
|
|
tex = renderer.createCompressedTexture(dst, alignedWidth, alignedHeight, COMPRESSED_RGB_ETC1_WEBGL);
|
|
}
|
|
else if (format === BASIS_FORMAT.cTFPVRTC1_4_RGB)
|
|
{
|
|
tex = renderer.createCompressedTexture(dst, alignedWidth, alignedHeight, COMPRESSED_RGB_PVRTC_4BPPV1_IMG);
|
|
}
|
|
else if (format === BASIS_FORMAT.cTFPVRTC1_4_RGBA)
|
|
{
|
|
tex = renderer.createCompressedTexture(dst, alignedWidth, alignedHeight, COMPRESSED_RGBA_PVRTC_4BPPV1_IMG);
|
|
}
|
|
else if (format === BASIS_FORMAT.cTFBC6H)
|
|
{
|
|
tex = renderer.createCompressedTexture(dst, alignedWidth, alignedHeight, COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT_EXT);
|
|
}
|
|
else if (format == BASIS_FORMAT.cTFRGBA_HALF)
|
|
{
|
|
canvas.width = width;
|
|
canvas.height = height;
|
|
displayWidth = width;
|
|
displayHeight = height;
|
|
|
|
if (rgbaHalfSupported)
|
|
{
|
|
var numHalfs = dstSize / 2;
|
|
|
|
// Create uint16 data from the uint8 data.
|
|
var dstHalfs = new Uint16Array(numHalfs);
|
|
|
|
// Convert the array of bytes to an array of uint16's.
|
|
for (var i = 0; i < numHalfs; i++)
|
|
dstHalfs[i] = dst[2 * i + 0] | (dst[2 * i + 1] << 8);
|
|
|
|
tex = renderer.createHalfRGBATexture(dstHalfs, width, height, halfFloatWebGLFormat);
|
|
}
|
|
else
|
|
{
|
|
// No HDR texture formats are supported (TODO: 9e5?) Fall back to plain 32bpp RGBA, just to do *something*. (Could also convert to RGBM.)
|
|
const dstRGBA = new Uint8Array(width * height * 4);
|
|
|
|
// Convert the array of half floats to uint8_t's, clamping as needed.
|
|
var srcOfs = 0, dstOfs = 0;
|
|
for (var y = 0; y < height; y++)
|
|
{
|
|
for (var x = 0; x < width; x++)
|
|
{
|
|
for (var c = 0; c < 4; c++)
|
|
{
|
|
var h = dst[srcOfs] | (dst[srcOfs + 1] << 8);
|
|
var f = Module.convertHalfToFloat(h);
|
|
|
|
dstRGBA[dstOfs] = Math.min(255, Math.max(0, Math.round(f * 255.0)));
|
|
|
|
srcOfs += 2;
|
|
dstOfs++;
|
|
}
|
|
}
|
|
}
|
|
|
|
tex = renderer.createRgbaTexture(dstRGBA, width, height);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
canvas.width = width;
|
|
canvas.height = height;
|
|
displayWidth = width;
|
|
displayHeight = height;
|
|
|
|
// Create 565 texture.
|
|
var dstTex = new Uint16Array(width * height);
|
|
|
|
// Convert the array of bytes to an array of uint16's.
|
|
var pix = 0;
|
|
for (var y = 0; y < height; y++)
|
|
for (var x = 0; x < width; x++, pix++)
|
|
dstTex[pix] = dst[2 * pix + 0] | (dst[2 * pix + 1] << 8);
|
|
|
|
tex = renderer.createRgb565Texture(dstTex, width, height);
|
|
}
|
|
|
|
// Now draw a quad with the texture.
|
|
redraw();
|
|
}
|
|
|
|
function runLoadFile() {
|
|
elem('logger').innerHTML = '';
|
|
loadArrayBuffer(elem('file').value, dataLoaded);
|
|
}
|
|
|
|
function alphaBlend() { drawMode = 0; redraw(); }
|
|
function viewRGB() { drawMode = 1; redraw(); }
|
|
function viewAlpha() { drawMode = 2; redraw(); }
|
|
function linearToSRGB() { linearToSRGBFlag = !linearToSRGBFlag; redraw(); }
|
|
|
|
function updateScale(value)
|
|
{
|
|
document.getElementById('scale-value').textContent = value;
|
|
drawScale = value;
|
|
redraw();
|
|
}
|
|
|
|
function checkForGPUFormatSupport(gl)
|
|
{
|
|
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');
|
|
|
|
// Check for BC6H support
|
|
{
|
|
var ext = gl.getExtension('EXT_texture_compression_bptc');
|
|
if (ext) {
|
|
bc6hSupported = !!ext.COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT_EXT;
|
|
}
|
|
}
|
|
|
|
// Check for ASTC HDR support
|
|
{
|
|
var ext = gl.getExtension('WEBGL_compressed_texture_astc');
|
|
|
|
if (ext) {
|
|
var supportedProfiles = ext.getSupportedProfiles();
|
|
|
|
var hdrProfiles = supportedProfiles.filter(profile => profile.includes('hdr'));
|
|
|
|
if (hdrProfiles.length > 0) {
|
|
astcHDRSupported = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
// Check for half-float texture support.
|
|
{
|
|
var ext = gl.getExtension('OES_texture_half_float');
|
|
if (ext)
|
|
{
|
|
rgbaHalfSupported = true;
|
|
halfFloatWebGLFormat = ext.HALF_FLOAT_OES;
|
|
}
|
|
}
|
|
|
|
// HACK HACK - for testing uncompressed
|
|
//astcSupported = false;
|
|
//etcSupported = false;
|
|
//dxtSupported = false;
|
|
//bc7Supported = false;
|
|
//pvrtcSupported = false;
|
|
//bc6hSupported = false;
|
|
//astcHDRSupported = false;
|
|
//rgbaHalfSupported = false;
|
|
|
|
console.log('astcSupported: ' + astcSupported);
|
|
console.log('etcSupported: ' + etcSupported);
|
|
console.log('dxtSupported: ' + dxtSupported);
|
|
console.log('bc7Supported: ' + bc7Supported);
|
|
console.log('pvrtcSupported: ' + pvrtcSupported);
|
|
console.log('bc6hSupported: ' + bc6hSupported);
|
|
console.log('astcHDRSupported: ' + astcHDRSupported);
|
|
console.log('rgbaHalfSupported: ' + rgbaHalfSupported);
|
|
}
|
|
|
|
</script>
|
|
</head>
|
|
<body>
|
|
<br>
|
|
<div style="font-size: 24pt; font-weight: bold">
|
|
.basis->GPU Compressed Texture Transcoder Test
|
|
</div>
|
|
|
|
<br>This demo uses the Basis Universal C++ transcoder (compiled to WebAssembly using Emscripten) to transcode a .basis file to <b id='format'>FORMAT</b>
|
|
<br>Thanks to Evan Parker for providing <a href="https://github.com/toji/webgl-texture-utils">webgl-texture-utils</a> and this test bed. <a href="../index.html">Go back.</a>
|
|
<br>
|
|
<br>
|
|
.basis file:
|
|
<input id="file" type="text" size=30 value="assets/desk.basis"></input>
|
|
<input type="button" value="Run!" onclick="runLoadFile()"></input>
|
|
<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>
|
|
<input type="button" value="LinearToSRGB" onclick="linearToSRGB()"></input>
|
|
|
|
<br>
|
|
|
|
<label for="scale-slider">Scale:</label>
|
|
<input type="range" id="scale-slider" min="0" max="16" step=".05" value="1" style="width: 300px;" oninput="updateScale(this.value)">
|
|
<span id="scale-value">1</span>
|
|
|
|
<br>
|
|
<br>
|
|
Use Container Independent Transcoding API's:
|
|
<input type="checkbox" id="ContainerIndependentTranscoding">
|
|
|
|
<div style="position:absolute; left: 525px; top:130px; font-size: 20pt; font-weight: bold; color: red">
|
|
<canvas id='canvas'></canvas>
|
|
</div>
|
|
|
|
<br><br>
|
|
<div id='logger'></div>
|
|
</body>
|
|
<script>
|
|
BASIS({onRuntimeInitialized : () => {
|
|
var gl = elem('canvas').getContext('webgl');
|
|
|
|
checkForGPUFormatSupport(gl);
|
|
|
|
window.renderer = new Renderer(gl);
|
|
|
|
elem('file').addEventListener('keydown', function(e) {
|
|
if (e.keyCode == 13) {
|
|
runLoadFile();
|
|
}
|
|
}, false);
|
|
|
|
runLoadFile();
|
|
}}).then(module => window.Module = module);
|
|
</script>
|
|
</html>
|