GitHub-Proxy/draco
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Updated snapshot to 1.2.5

Browse Source 
* On average 10% faster decoding
* Improved Javascript metadata API
* Bug fixes
This commit is contained in:
Ondrej Stava 2018-01-12 14:44:54 -08:00
parent 3ea3cd8b20
commit 3faff31654
66 changed files with 1109 additions and 589 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

25
CMakeLists.txt
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@ -529,6 +529,7 @@ set(draco_metadata_dec_sources
"${draco_src_root}/metadata/metadata_decoder.cc"
"${draco_src_root}/metadata/metadata_decoder.h")
set(draco_js_dec_sources
"${draco_src_root}/javascript/emscripten/decoder_webidl_wrapper.cc"
"${draco_src_root}/javascript/emscripten/draco_decoder_glue_wrapper.cc")
@ -537,6 +538,7 @@ set(draco_js_enc_sources
"${draco_src_root}/javascript/emscripten/draco_encoder_glue_wrapper.cc"
"${draco_src_root}/javascript/emscripten/encoder_webidl_wrapper.cc")
set(draco_test_sources
"${draco_src_root}/attributes/point_attribute_test.cc"
"${draco_src_root}/compression/attributes/prediction_schemes/prediction_scheme_normal_octahedron_canonicalized_transform_test.cc"
@ -631,6 +633,7 @@ if (EMSCRIPTEN)
message(FATAL_ERROR "Glue generation failed.")
endif ()
# Add a custom rule depending on the IDL to regenerate
# ${draco_build_dir}/glue_decoder.cpp as needed.
add_custom_command(OUTPUT ${draco_build_dir}/glue_decoder.cpp
@ -653,10 +656,11 @@ if (EMSCRIPTEN)
WORKING_DIRECTORY ${draco_build_dir}
VERBATIM)
# Add path to glue_decoder.cpp to draco include paths.
include_directories("${draco_build_dir}")
add_executable(draco_decoder
set(draco_decoder_src
${draco_attributes_sources}
${draco_compression_attributes_dec_sources}
${draco_compression_attributes_pred_schemes_dec_sources}
@ -672,12 +676,8 @@ if (EMSCRIPTEN)
${draco_metadata_sources}
${draco_point_cloud_sources}
${draco_points_dec_sources}
${draco_js_dec_sources}
${draco_version_sources})
append_link_flag_to_target(draco_decoder
"-s EXPORT_NAME=\"'DracoDecoderModule'\"")
add_executable(draco_encoder
set(draco_encoder_src
${draco_attributes_sources}
${draco_compression_attributes_enc_sources}
${draco_compression_attributes_pred_schemes_enc_sources}
@ -693,8 +693,18 @@ if (EMSCRIPTEN)
${draco_metadata_sources}
${draco_point_cloud_sources}
${draco_points_enc_sources}
${draco_js_enc_sources}
${draco_version_sources})
add_executable(draco_decoder
${draco_js_dec_sources}
${draco_decoder_src})
append_link_flag_to_target(draco_decoder
"-s EXPORT_NAME=\"'DracoDecoderModule'\"")
add_executable(draco_encoder
${draco_js_enc_sources}
${draco_encoder_src})
append_link_flag_to_target(draco_encoder
"-s EXPORT_NAME=\"'DracoEncoderModule'\"")
@ -723,6 +733,7 @@ if (EMSCRIPTEN)
em_link_post_js(draco_encoder
"${draco_build_dir}/glue_encoder.js"
"${draco_src_root}/javascript/emscripten/finalize.js")
else ()
# Standard Draco libs, encoder and decoder.
# Object collections that mirror the Draco directory structure.

5
README.md
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@ -5,6 +5,11 @@
News
=======
### Version 1.2.5 release
* On average 10% faster decoding
* Improved Javascript metadata API
* Bug fixes
### Version 1.2.4 release
* Up to 20% faster decoding
* Added support for integer attributes to our Javascript Encoder

13
javascript/draco_decoder.js
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javascript/draco_decoder.wasm
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11
javascript/draco_decoder_gltf.js
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javascript/draco_decoder_gltf.wasm
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javascript/draco_encoder.js
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110
javascript/draco_wasm_wrapper.js
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@ -13,15 +13,15 @@ new g(function(c,f){v=c;R=f});this.callWhenSettled_(n(c,v),n(f,R));return D};g.p
g.race=function(c){return new g(function(f,g){for(var v=$jscomp.makeIterator(c),u=v.next();!u.done;u=v.next())n(u.value).callWhenSettled_(f,g)})};g.all=function(c){var f=$jscomp.makeIterator(c),u=f.next();return u.done?n([]):new g(function(c,g){function D(f){return function(g){v[f]=g;L--;0==L&&c(v)}}var v=[],L=0;do v.push(void 0),L++,n(u.value).callWhenSettled_(D(v.length-1),g),u=f.next();while(!u.done)})};return g},"es6","es3");
var DracoDecoderModule=function(c){function f(a,b){a||S("Assertion failed: "+b)}function n(e,b){if(0===b||!e)return"";for(var d=0,l,c=0;;){l=O[e+c>>0];d|=l;if(0==l&&!b)break;c++;if(b&&c==b)break}b||(b=c);l="";if(128>d){for(;0<b;)d=String.fromCharCode.apply(String,O.subarray(e,e+Math.min(b,1024))),l=l?l+d:d,e+=1024,b-=1024;return l}return a.UTF8ToString(e)}function D(a){return a.replace(/__Z[\w\d_]+/g,function(a){return a===a?a:a+" ["+a+"]"})}function g(){a:{var e=Error();if(!e.stack){try{throw Error(0);
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63;if(224==(c&240))c=(c&15)<<12|g<<6|h;else{var F=d[e++]&63;if(240==(c&248))c=(c&7)<<18|g<<12|h<<6|F;else{var k=d[e++]&63;if(248==(c&252))c=(c&3)<<24|g<<18|h<<12|F<<6|k;else{var pa=d[e++]&63;c=(c&1)<<30|g<<24|h<<18|F<<12|k<<6|pa}}}65536>c?l+=String.fromCharCode(c):(c-=65536,l+=String.fromCharCode(55296|c>>10,56320|c&1023))}}else l+=String.fromCharCode(c)}}b(e);d.length=0}else d.push(e)});for(b=0;b<c;b++){for(var g=w[l+8*b>>2],h=w[l+(8*b+4)>>2],k=0;k<h;k++)L.printChar(d,O[g+k]);e+=h}return e}catch(xa){return"undefined"!==
typeof FS&&xa instanceof FS.ErrnoError||S(xa),-xa.errno}}function na(e,b){na.seen||(na.seen={});e in na.seen||(a.dynCall_v(b),na.seen[e]=1)}function aa(a){this.name="ExitStatus";this.message="Program terminated with exit("+a+")";this.status=a}function ya(e){function b(){if(!a.calledRun&&(a.calledRun=!0,!ja)){Qa||(Qa=!0,u(Ra));u(Sa);if(a.onRuntimeInitialized)a.onRuntimeInitialized();if(a.postRun)for("function"==typeof a.postRun&&(a.postRun=[a.postRun]);a.postRun.length;)Ta.unshift(a.postRun.shift());
u(Ta)}}null===Ua&&(Ua=Date.now());if(!(0<ca)){if(a.preRun)for("function"==typeof a.preRun&&(a.preRun=[a.preRun]);a.preRun.length;)Va.unshift(a.preRun.shift());u(Va);0<ca||a.calledRun||(a.setStatus?(a.setStatus("Running..."),setTimeout(function(){setTimeout(function(){a.setStatus("")},1);b()},1)):b())}}function S(e){if(a.onAbort)a.onAbort(e);void 0!==e?(a.print(e),a.printErr(e),e=JSON.stringify(e)):e="";ja=!0;var b="abort("+e+") at "+g()+"\nIf this abort() is unexpected, build with -s ASSERTIONS=1 which can give more information.";
Wa&&Wa.forEach(function(a){b=a(b,e)});throw b;}function q(){}function B(a){return(a||q).__cache__}function T(a,b){var e=B(b),c=e[a];if(c)return c;c=Object.create((b||q).prototype);c.ptr=a;return e[a]=c}function X(a){if("string"===typeof a){for(var b=0,e=0;e<a.length;++e){var c=a.charCodeAt(e);55296<=c&&57343>=c&&(c=65536+((c&1023)<<10)|a.charCodeAt(++e)&1023);127>=c?++b:b=2047>=c?b+2:65535>=c?b+3:2097151>=c?b+4:67108863>=c?b+5:b+6}b=Array(b+1);e=0;c=b.length;if(0<c){c=e+c-1;for(var f=0;f<a.length;++f){var g=
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a.charCodeAt(f);55296<=g&&57343>=g&&(g=65536+((g&1023)<<10)|a.charCodeAt(++f)&1023);if(127>=g){if(e>=c)break;b[e++]=g}else{if(2047>=g){if(e+1>=c)break;b[e++]=192|g>>6}else{if(65535>=g){if(e+2>=c)break;b[e++]=224|g>>12}else{if(2097151>=g){if(e+3>=c)break;b[e++]=240|g>>18}else{if(67108863>=g){if(e+4>=c)break;b[e++]=248|g>>24}else{if(e+5>=c)break;b[e++]=252|g>>30;b[e++]=128|g>>24&63}b[e++]=128|g>>18&63}b[e++]=128|g>>12&63}b[e++]=128|g>>6&63}b[e++]=128|g&63}}b[e]=0}a=k.alloc(b,ba);k.copy(b,ba,a)}return a}
function A(){throw"cannot construct a Status, no constructor in IDL";}function G(){this.ptr=gb();B(G)[this.ptr]=this}function H(){this.ptr=hb();B(H)[this.ptr]=this}function p(){this.ptr=ib();B(p)[this.ptr]=this}function K(){this.ptr=jb();B(K)[this.ptr]=this}function y(){this.ptr=kb();B(y)[this.ptr]=this}function r(){this.ptr=lb();B(r)[this.ptr]=this}function I(){this.ptr=mb();B(I)[this.ptr]=this}function U(){this.ptr=nb();B(U)[this.ptr]=this}function M(){this.ptr=ob();B(M)[this.ptr]=this}function h(){this.ptr=
function A(){throw"cannot construct a Status, no constructor in IDL";}function G(){this.ptr=gb();B(G)[this.ptr]=this}function H(){this.ptr=hb();B(H)[this.ptr]=this}function p(){this.ptr=ib();B(p)[this.ptr]=this}function K(){this.ptr=jb();B(K)[this.ptr]=this}function y(){this.ptr=kb();B(y)[this.ptr]=this}function q(){this.ptr=lb();B(q)[this.ptr]=this}function I(){this.ptr=mb();B(I)[this.ptr]=this}function V(){this.ptr=nb();B(V)[this.ptr]=this}function M(){this.ptr=ob();B(M)[this.ptr]=this}function h(){this.ptr=
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else ka="object"===typeof window,fa="function"===typeof importScripts,la="object"===typeof process&&"function"===typeof require&&!ka&&!fa,ra=!ka&&!la&&!fa;if(la){a.print||(a.print=console.log);a.printErr||(a.printErr=console.warn);var za,Aa;a.read=function(a,b){za||(za=require("fs"));Aa||(Aa=require("path"));a=Aa.normalize(a);a=za.readFileSync(a);return b?a:a.toString()};a.readBinary=function(e){e=a.read(e,!0);e.buffer||(e=new Uint8Array(e));f(e.buffer);return e};a.thisProgram||(a.thisProgram=1<process.argv.length?
@ -32,18 +32,18 @@ a.print||(a.print=function(){});a.printErr||(a.printErr=a.print);a.arguments||(a
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ba;a.HEAP16=ua;a.HEAP32=w;a.HEAPU8=O;a.HEAPU16=Ja;a.HEAPU32=Ka;a.HEAPF32=La;a.HEAPF64=Ma;var Va=[],Ra=[],Sa=[],Za=[],Ta=[],Qa=!1;f(Math.imul&&Math.fround&&Math.clz32&&Math.trunc,"this is a legacy browser, build with LEGACY_VM_SUPPORT");var ca=0,wa=null,oa=null;a.preloadedImages={};a.preloadedAudios={};var Q=null;(function(){function e(){try{if(a.wasmBinary)return new Uint8Array(a.wasmBinary);if(a.readBinary)return a.readBinary(c);throw"on the web, we need the wasm binary to be preloaded and set on Module['wasmBinary']. emcc.py will do that for you when generating HTML (but not JS)";
}catch(eb){S(eb)}}function b(){return a.wasmBinary||!ka&&!fa||"function"!==typeof fetch?new Promise(function(a,b){a(e())}):fetch(c,{credentials:"same-origin"}).then(function(a){if(!a.ok)throw"failed to load wasm binary file at '"+c+"'";return a.arrayBuffer()}).catch(function(){return e()})}function d(d,e,l){function f(b,d){h=b.exports;if(h.memory){b=h.memory;d=a.buffer;b.byteLength<d.byteLength&&a.printErr("the new buffer in mergeMemory is smaller than the previous one. in native wasm, we should grow memory here");
d=new Int8Array(d);var e=new Int8Array(b);Q||d.set(e.subarray(a.STATIC_BASE,a.STATIC_BASE+a.STATIC_BUMP),a.STATIC_BASE);e.set(d);a.buffer=E=b;R()}a.asm=h;a.usingWasm=!0;Ia("wasm-instantiate")}function k(a){f(a.instance,a.module)}function F(d){b().then(function(a){return WebAssembly.instantiate(a,g)}).then(d).catch(function(b){a.printErr("failed to asynchronously prepare wasm: "+b);S(b)})}if("object"!==typeof WebAssembly)return a.printErr("no native wasm support detected"),!1;if(!(a.wasmMemory instanceof
WebAssembly.Memory))return a.printErr("no native wasm Memory in use"),!1;e.memory=a.wasmMemory;g.global={NaN:NaN,Infinity:Infinity};g["global.Math"]=d.Math;g.env=e;v("wasm-instantiate");if(a.instantiateWasm)try{return a.instantiateWasm(g,f)}catch(fb){return a.printErr("Module.instantiateWasm callback failed with error: "+fb),!1}a.wasmBinary||"function"!==typeof WebAssembly.instantiateStreaming||0===c.indexOf("data:")||"function"!==typeof fetch?F(k):WebAssembly.instantiateStreaming(fetch(c,{credentials:"same-origin"}),
g).then(k).catch(function(b){a.printErr("wasm streaming compile failed: "+b);a.printErr("falling back to ArrayBuffer instantiation");F(k)});return{}}var c="draco_decoder.wasm",f="draco_decoder.temp.asm.js";"function"===typeof a.locateFile&&(a.locateFile("draco_decoder.wast"),c=a.locateFile(c),f=a.locateFile(f));var g={global:null,env:null,asm2wasm:{"f64-rem":function(a,b){return a%b},"debugger":function(){debugger}},parent:a},h=null;a.asmPreload=a.asm;var k=a.reallocBuffer;a.reallocBuffer=function(b){if("asmjs"===
m)var d=k(b);else a:{b=ha(b,a.usingWasm?va:Na);var e=a.buffer.byteLength;if(a.usingWasm)try{d=-1!==a.wasmMemory.grow((b-e)/65536)?a.buffer=a.wasmMemory.buffer:null;break a}catch(cd){d=null;break a}d=void 0}return d};var m="";a.asm=function(b,e,c){if(!e.table){var l=a.wasmTableSize;void 0===l&&(l=1024);var f=a.wasmMaxTableSize;e.table="object"===typeof WebAssembly&&"function"===typeof WebAssembly.Table?void 0!==f?new WebAssembly.Table({initial:l,maximum:f,element:"anyfunc"}):new WebAssembly.Table({initial:l,
element:"anyfunc"}):Array(l);a.wasmTable=e.table}e.memoryBase||(e.memoryBase=a.STATIC_BASE);e.tableBase||(e.tableBase=0);(b=d(b,e,c))||S("no binaryen method succeeded. consider enabling more options, like interpreting, if you want that: https://github.com/kripken/emscripten/wiki/WebAssembly#binaryen-methods");return b}})();Da=m.GLOBAL_BASE;V=Da+23360;Ra.push();Q=null;a.STATIC_BASE=Da;a.STATIC_BUMP=23360;var ub=V;V+=16;var z={last:0,caught:[],infos:{},deAdjust:function(a){if(!a||z.infos[a])return a;
m)var d=k(b);else a:{b=ha(b,a.usingWasm?va:Na);var e=a.buffer.byteLength;if(a.usingWasm)try{d=-1!==a.wasmMemory.grow((b-e)/65536)?a.buffer=a.wasmMemory.buffer:null;break a}catch(fd){d=null;break a}d=void 0}return d};var m="";a.asm=function(b,e,c){if(!e.table){var l=a.wasmTableSize;void 0===l&&(l=1024);var f=a.wasmMaxTableSize;e.table="object"===typeof WebAssembly&&"function"===typeof WebAssembly.Table?void 0!==f?new WebAssembly.Table({initial:l,maximum:f,element:"anyfunc"}):new WebAssembly.Table({initial:l,
element:"anyfunc"}):Array(l);a.wasmTable=e.table}e.memoryBase||(e.memoryBase=a.STATIC_BASE);e.tableBase||(e.tableBase=0);(b=d(b,e,c))||S("no binaryen method succeeded. consider enabling more options, like interpreting, if you want that: https://github.com/kripken/emscripten/wiki/WebAssembly#binaryen-methods");return b}})();Da=m.GLOBAL_BASE;W=Da+23664;Ra.push();Q=null;a.STATIC_BASE=Da;a.STATIC_BUMP=23664;var ub=W;W+=16;var z={last:0,caught:[],infos:{},deAdjust:function(a){if(!a||z.infos[a])return a;
for(var b in z.infos)if(z.infos[b].adjusted===a)return b;return a},addRef:function(a){a&&z.infos[a].refcount++},decRef:function(e){if(e){var b=z.infos[e];f(0<b.refcount);b.refcount--;0!==b.refcount||b.rethrown||(b.destructor&&a.dynCall_vi(b.destructor,e),delete z.infos[e],___cxa_free_exception(e))}},clearRef:function(a){a&&(z.infos[a].refcount=0)}},t={varargs:0,get:function(a){t.varargs+=4;return w[t.varargs-4>>2]},getStr:function(){return n(t.get())},get64:function(){var a=t.get(),b=t.get();0<=a?
f(0===b):f(-1===b);return a},getZero:function(){f(0===t.get())}},ta={},Ga=1;Za.push(function(){var e=a._fflush;e&&e(0);if(e=L.printChar){var b=L.buffers;b[1].length&&e(1,10);b[2].length&&e(2,10)}});W=m.staticAlloc(4);Ba=P=m.alignMemory(V);sa=Ba+Fa;Ca=m.alignMemory(sa);w[W>>2]=Ca;a.wasmTableSize=492;a.wasmMaxTableSize=492;a.asmGlobalArg={Math:Math,Int8Array:Int8Array,Int16Array:Int16Array,Int32Array:Int32Array,Uint8Array:Uint8Array,Uint16Array:Uint16Array,Uint32Array:Uint32Array,Float32Array:Float32Array,
f(0===b):f(-1===b);return a},getZero:function(){f(0===t.get())}},ta={},Ga=1;Za.push(function(){var e=a._fflush;e&&e(0);if(e=L.printChar){var b=L.buffers;b[1].length&&e(1,10);b[2].length&&e(2,10)}});X=m.staticAlloc(4);Ba=P=m.alignMemory(W);sa=Ba+Fa;Ca=m.alignMemory(sa);w[X>>2]=Ca;a.wasmTableSize=492;a.wasmMaxTableSize=492;a.asmGlobalArg={Math:Math,Int8Array:Int8Array,Int16Array:Int16Array,Int32Array:Int32Array,Uint8Array:Uint8Array,Uint16Array:Uint16Array,Uint32Array:Uint32Array,Float32Array:Float32Array,
Float64Array:Float64Array,NaN:NaN,Infinity:Infinity,byteLength:Ea};a.asmLibraryArg={abort:S,assert:f,enlargeMemory:Ha,getTotalMemory:function(){return x},abortOnCannotGrowMemory:function(){S("Cannot enlarge memory arrays. Either (1) compile with -s TOTAL_MEMORY=X with X higher than the current value "+x+", (2) compile with -s ALLOW_MEMORY_GROWTH=1 which allows increasing the size at runtime, or (3) if you want malloc to return NULL (0) instead of this abort, compile with -s ABORTING_MALLOC=0 ")},
invoke_ii:function(e,b){try{return a.dynCall_ii(e,b)}catch(d){if("number"!==typeof d&&"longjmp"!==d)throw d;a.setThrew(1,0)}},invoke_iii:function(e,b,d){try{return a.dynCall_iii(e,b,d)}catch(l){if("number"!==typeof l&&"longjmp"!==l)throw l;a.setThrew(1,0)}},invoke_iiii:function(e,b,d,c){try{return a.dynCall_iiii(e,b,d,c)}catch(F){if("number"!==typeof F&&"longjmp"!==F)throw F;a.setThrew(1,0)}},invoke_iiiiiii:function(e,b,d,c,f,g,h){try{return a.dynCall_iiiiiii(e,b,d,c,f,g,h)}catch(ea){if("number"!==
typeof ea&&"longjmp"!==ea)throw ea;a.setThrew(1,0)}},invoke_v:function(e){try{a.dynCall_v(e)}catch(b){if("number"!==typeof b&&"longjmp"!==b)throw b;a.setThrew(1,0)}},invoke_vi:function(e,b){try{a.dynCall_vi(e,b)}catch(d){if("number"!==typeof d&&"longjmp"!==d)throw d;a.setThrew(1,0)}},invoke_vii:function(e,b,d){try{a.dynCall_vii(e,b,d)}catch(l){if("number"!==typeof l&&"longjmp"!==l)throw l;a.setThrew(1,0)}},invoke_viii:function(e,b,d,c){try{a.dynCall_viii(e,b,d,c)}catch(F){if("number"!==typeof F&&
@ -51,7 +51,7 @@ typeof ea&&"longjmp"!==ea)throw ea;a.setThrew(1,0)}},invoke_v:function(e){try{a.
___assert_fail:function(a,b,d,c){ja=!0;throw"Assertion failed: "+n(a)+", at: "+[b?n(b):"unknown filename",d,c?n(c):"unknown function"]+" at "+g();},___cxa_allocate_exception:function(a){return Oa(a)},___cxa_begin_catch:function(a){var b=z.infos[a];b&&!b.caught&&(b.caught=!0,ia.uncaught_exception--);b&&(b.rethrown=!1);z.caught.push(a);z.addRef(z.deAdjust(a));return a},___cxa_find_matching_catch:ma,___cxa_pure_virtual:function(){ja=!0;throw"Pure virtual function called!";},___cxa_throw:function(a,b,
d){z.infos[a]={ptr:a,adjusted:a,type:b,destructor:d,refcount:0,caught:!1,rethrown:!1};z.last=a;"uncaught_exception"in ia?ia.uncaught_exception++:ia.uncaught_exception=1;throw a+" - Exception catching is disabled, this exception cannot be caught. Compile with -s DISABLE_EXCEPTION_CATCHING=0 or DISABLE_EXCEPTION_CATCHING=2 to catch.";},___gxx_personality_v0:function(){},___resumeException:function(a){z.last||(z.last=a);throw a+" - Exception catching is disabled, this exception cannot be caught. Compile with -s DISABLE_EXCEPTION_CATCHING=0 or DISABLE_EXCEPTION_CATCHING=2 to catch.";
},___setErrNo:function(c){a.___errno_location&&(w[a.___errno_location()>>2]=c);return c},___syscall140:function(a,b){t.varargs=b;try{var d=t.getStreamFromFD();t.get();var c=t.get(),e=t.get(),f=t.get();FS.llseek(d,c,f);w[e>>2]=d.position;d.getdents&&0===c&&0===f&&(d.getdents=null);return 0}catch(da){return"undefined"!==typeof FS&&da instanceof FS.ErrnoError||S(da),-da.errno}},___syscall146:L,___syscall54:function(a,b){t.varargs=b;return 0},___syscall6:function(a,b){t.varargs=b;try{var d=t.getStreamFromFD();
FS.close(d);return 0}catch(l){return"undefined"!==typeof FS&&l instanceof FS.ErrnoError||S(l),-l.errno}},_abort:function(){a.abort()},_emscripten_memcpy_big:function(a,b,d){O.set(O.subarray(b,b+d),a);return a},_pthread_getspecific:function(a){return ta[a]||0},_pthread_key_create:function(a,b){if(0==a)return 22;w[a>>2]=Ga;ta[Ga]=0;Ga++;return 0},_pthread_once:na,_pthread_setspecific:function(a,b){if(!(a in ta))return 22;ta[a]=b;return 0},DYNAMICTOP_PTR:W,tempDoublePtr:ub,ABORT:ja,STACKTOP:P,STACK_MAX:sa};
FS.close(d);return 0}catch(l){return"undefined"!==typeof FS&&l instanceof FS.ErrnoError||S(l),-l.errno}},_abort:function(){a.abort()},_emscripten_memcpy_big:function(a,b,d){O.set(O.subarray(b,b+d),a);return a},_pthread_getspecific:function(a){return ta[a]||0},_pthread_key_create:function(a,b){if(0==a)return 22;w[a>>2]=Ga;ta[Ga]=0;Ga++;return 0},_pthread_once:na,_pthread_setspecific:function(a,b){if(!(a in ta))return 22;ta[a]=b;return 0},DYNAMICTOP_PTR:X,tempDoublePtr:ub,ABORT:ja,STACKTOP:P,STACK_MAX:sa};
var $a=a.asm(a.asmGlobalArg,a.asmLibraryArg,E);a.asm=$a;a.___cxa_can_catch=function(){return a.asm.___cxa_can_catch.apply(null,arguments)};a.___cxa_is_pointer_type=function(){return a.asm.___cxa_is_pointer_type.apply(null,arguments)};var hb=a._emscripten_bind_AttributeOctahedronTransform_AttributeOctahedronTransform_0=function(){return a.asm._emscripten_bind_AttributeOctahedronTransform_AttributeOctahedronTransform_0.apply(null,arguments)},vb=a._emscripten_bind_AttributeOctahedronTransform_InitFromAttribute_1=
function(){return a.asm._emscripten_bind_AttributeOctahedronTransform_InitFromAttribute_1.apply(null,arguments)},wb=a._emscripten_bind_AttributeOctahedronTransform___destroy___0=function(){return a.asm._emscripten_bind_AttributeOctahedronTransform___destroy___0.apply(null,arguments)},xb=a._emscripten_bind_AttributeOctahedronTransform_quantization_bits_0=function(){return a.asm._emscripten_bind_AttributeOctahedronTransform_quantization_bits_0.apply(null,arguments)},kb=a._emscripten_bind_AttributeQuantizationTransform_AttributeQuantizationTransform_0=
function(){return a.asm._emscripten_bind_AttributeQuantizationTransform_AttributeQuantizationTransform_0.apply(null,arguments)},yb=a._emscripten_bind_AttributeQuantizationTransform_InitFromAttribute_1=function(){return a.asm._emscripten_bind_AttributeQuantizationTransform_InitFromAttribute_1.apply(null,arguments)},zb=a._emscripten_bind_AttributeQuantizationTransform___destroy___0=function(){return a.asm._emscripten_bind_AttributeQuantizationTransform___destroy___0.apply(null,arguments)},Ab=a._emscripten_bind_AttributeQuantizationTransform_min_value_1=
@ -66,48 +66,50 @@ Wb=a._emscripten_bind_Decoder_GetTriangleStripsFromMesh_2=function(){return a.as
arguments)},Zb=a._emscripten_bind_DracoFloat32Array_GetValue_1=function(){return a.asm._emscripten_bind_DracoFloat32Array_GetValue_1.apply(null,arguments)},$b=a._emscripten_bind_DracoFloat32Array___destroy___0=function(){return a.asm._emscripten_bind_DracoFloat32Array___destroy___0.apply(null,arguments)},ac=a._emscripten_bind_DracoFloat32Array_size_0=function(){return a.asm._emscripten_bind_DracoFloat32Array_size_0.apply(null,arguments)},rb=a._emscripten_bind_DracoInt32Array_DracoInt32Array_0=function(){return a.asm._emscripten_bind_DracoInt32Array_DracoInt32Array_0.apply(null,
arguments)},bc=a._emscripten_bind_DracoInt32Array_GetValue_1=function(){return a.asm._emscripten_bind_DracoInt32Array_GetValue_1.apply(null,arguments)},cc=a._emscripten_bind_DracoInt32Array___destroy___0=function(){return a.asm._emscripten_bind_DracoInt32Array___destroy___0.apply(null,arguments)},dc=a._emscripten_bind_DracoInt32Array_size_0=function(){return a.asm._emscripten_bind_DracoInt32Array_size_0.apply(null,arguments)},nb=a._emscripten_bind_GeometryAttribute_GeometryAttribute_0=function(){return a.asm._emscripten_bind_GeometryAttribute_GeometryAttribute_0.apply(null,
arguments)},ec=a._emscripten_bind_GeometryAttribute___destroy___0=function(){return a.asm._emscripten_bind_GeometryAttribute___destroy___0.apply(null,arguments)},qb=a._emscripten_bind_Mesh_Mesh_0=function(){return a.asm._emscripten_bind_Mesh_Mesh_0.apply(null,arguments)},fc=a._emscripten_bind_Mesh___destroy___0=function(){return a.asm._emscripten_bind_Mesh___destroy___0.apply(null,arguments)},gc=a._emscripten_bind_Mesh_num_attributes_0=function(){return a.asm._emscripten_bind_Mesh_num_attributes_0.apply(null,
arguments)},hc=a._emscripten_bind_Mesh_num_faces_0=function(){return a.asm._emscripten_bind_Mesh_num_faces_0.apply(null,arguments)},ic=a._emscripten_bind_Mesh_num_points_0=function(){return a.asm._emscripten_bind_Mesh_num_points_0.apply(null,arguments)},jc=a._emscripten_bind_MetadataQuerier_GetDoubleEntry_2=function(){return a.asm._emscripten_bind_MetadataQuerier_GetDoubleEntry_2.apply(null,arguments)},kc=a._emscripten_bind_MetadataQuerier_GetIntEntry_2=function(){return a.asm._emscripten_bind_MetadataQuerier_GetIntEntry_2.apply(null,
arguments)},lc=a._emscripten_bind_MetadataQuerier_GetStringEntry_2=function(){return a.asm._emscripten_bind_MetadataQuerier_GetStringEntry_2.apply(null,arguments)},mc=a._emscripten_bind_MetadataQuerier_HasDoubleEntry_2=function(){return a.asm._emscripten_bind_MetadataQuerier_HasDoubleEntry_2.apply(null,arguments)},nc=a._emscripten_bind_MetadataQuerier_HasIntEntry_2=function(){return a.asm._emscripten_bind_MetadataQuerier_HasIntEntry_2.apply(null,arguments)},oc=a._emscripten_bind_MetadataQuerier_HasStringEntry_2=
function(){return a.asm._emscripten_bind_MetadataQuerier_HasStringEntry_2.apply(null,arguments)},lb=a._emscripten_bind_MetadataQuerier_MetadataQuerier_0=function(){return a.asm._emscripten_bind_MetadataQuerier_MetadataQuerier_0.apply(null,arguments)},pc=a._emscripten_bind_MetadataQuerier___destroy___0=function(){return a.asm._emscripten_bind_MetadataQuerier___destroy___0.apply(null,arguments)},sb=a._emscripten_bind_Metadata_Metadata_0=function(){return a.asm._emscripten_bind_Metadata_Metadata_0.apply(null,
arguments)},qc=a._emscripten_bind_Metadata___destroy___0=function(){return a.asm._emscripten_bind_Metadata___destroy___0.apply(null,arguments)},rc=a._emscripten_bind_PointAttribute_GetAttributeTransformData_0=function(){return a.asm._emscripten_bind_PointAttribute_GetAttributeTransformData_0.apply(null,arguments)},ib=a._emscripten_bind_PointAttribute_PointAttribute_0=function(){return a.asm._emscripten_bind_PointAttribute_PointAttribute_0.apply(null,arguments)},sc=a._emscripten_bind_PointAttribute___destroy___0=
function(){return a.asm._emscripten_bind_PointAttribute___destroy___0.apply(null,arguments)},tc=a._emscripten_bind_PointAttribute_attribute_type_0=function(){return a.asm._emscripten_bind_PointAttribute_attribute_type_0.apply(null,arguments)},uc=a._emscripten_bind_PointAttribute_byte_offset_0=function(){return a.asm._emscripten_bind_PointAttribute_byte_offset_0.apply(null,arguments)},vc=a._emscripten_bind_PointAttribute_byte_stride_0=function(){return a.asm._emscripten_bind_PointAttribute_byte_stride_0.apply(null,
arguments)},wc=a._emscripten_bind_PointAttribute_data_type_0=function(){return a.asm._emscripten_bind_PointAttribute_data_type_0.apply(null,arguments)},xc=a._emscripten_bind_PointAttribute_normalized_0=function(){return a.asm._emscripten_bind_PointAttribute_normalized_0.apply(null,arguments)},yc=a._emscripten_bind_PointAttribute_num_components_0=function(){return a.asm._emscripten_bind_PointAttribute_num_components_0.apply(null,arguments)},zc=a._emscripten_bind_PointAttribute_size_0=function(){return a.asm._emscripten_bind_PointAttribute_size_0.apply(null,
arguments)},Ac=a._emscripten_bind_PointAttribute_unique_id_0=function(){return a.asm._emscripten_bind_PointAttribute_unique_id_0.apply(null,arguments)},gb=a._emscripten_bind_PointCloud_PointCloud_0=function(){return a.asm._emscripten_bind_PointCloud_PointCloud_0.apply(null,arguments)},Bc=a._emscripten_bind_PointCloud___destroy___0=function(){return a.asm._emscripten_bind_PointCloud___destroy___0.apply(null,arguments)},Cc=a._emscripten_bind_PointCloud_num_attributes_0=function(){return a.asm._emscripten_bind_PointCloud_num_attributes_0.apply(null,
arguments)},Dc=a._emscripten_bind_PointCloud_num_points_0=function(){return a.asm._emscripten_bind_PointCloud_num_points_0.apply(null,arguments)},Ec=a._emscripten_bind_Status___destroy___0=function(){return a.asm._emscripten_bind_Status___destroy___0.apply(null,arguments)},Fc=a._emscripten_bind_Status_code_0=function(){return a.asm._emscripten_bind_Status_code_0.apply(null,arguments)},Gc=a._emscripten_bind_Status_error_msg_0=function(){return a.asm._emscripten_bind_Status_error_msg_0.apply(null,arguments)},
Hc=a._emscripten_bind_Status_ok_0=function(){return a.asm._emscripten_bind_Status_ok_0.apply(null,arguments)},Ic=a._emscripten_bind_VoidPtr___destroy___0=function(){return a.asm._emscripten_bind_VoidPtr___destroy___0.apply(null,arguments)},Jc=a._emscripten_enum_draco_AttributeTransformType_ATTRIBUTE_INVALID_TRANSFORM=function(){return a.asm._emscripten_enum_draco_AttributeTransformType_ATTRIBUTE_INVALID_TRANSFORM.apply(null,arguments)},Kc=a._emscripten_enum_draco_AttributeTransformType_ATTRIBUTE_NO_TRANSFORM=
function(){return a.asm._emscripten_enum_draco_AttributeTransformType_ATTRIBUTE_NO_TRANSFORM.apply(null,arguments)},Lc=a._emscripten_enum_draco_AttributeTransformType_ATTRIBUTE_OCTAHEDRON_TRANSFORM=function(){return a.asm._emscripten_enum_draco_AttributeTransformType_ATTRIBUTE_OCTAHEDRON_TRANSFORM.apply(null,arguments)},Mc=a._emscripten_enum_draco_AttributeTransformType_ATTRIBUTE_QUANTIZATION_TRANSFORM=function(){return a.asm._emscripten_enum_draco_AttributeTransformType_ATTRIBUTE_QUANTIZATION_TRANSFORM.apply(null,
arguments)},Nc=a._emscripten_enum_draco_EncodedGeometryType_INVALID_GEOMETRY_TYPE=function(){return a.asm._emscripten_enum_draco_EncodedGeometryType_INVALID_GEOMETRY_TYPE.apply(null,arguments)},Oc=a._emscripten_enum_draco_EncodedGeometryType_POINT_CLOUD=function(){return a.asm._emscripten_enum_draco_EncodedGeometryType_POINT_CLOUD.apply(null,arguments)},Pc=a._emscripten_enum_draco_EncodedGeometryType_TRIANGULAR_MESH=function(){return a.asm._emscripten_enum_draco_EncodedGeometryType_TRIANGULAR_MESH.apply(null,
arguments)},Qc=a._emscripten_enum_draco_GeometryAttribute_Type_COLOR=function(){return a.asm._emscripten_enum_draco_GeometryAttribute_Type_COLOR.apply(null,arguments)},Rc=a._emscripten_enum_draco_GeometryAttribute_Type_GENERIC=function(){return a.asm._emscripten_enum_draco_GeometryAttribute_Type_GENERIC.apply(null,arguments)},Sc=a._emscripten_enum_draco_GeometryAttribute_Type_INVALID=function(){return a.asm._emscripten_enum_draco_GeometryAttribute_Type_INVALID.apply(null,arguments)},Tc=a._emscripten_enum_draco_GeometryAttribute_Type_NORMAL=
function(){return a.asm._emscripten_enum_draco_GeometryAttribute_Type_NORMAL.apply(null,arguments)},Uc=a._emscripten_enum_draco_GeometryAttribute_Type_POSITION=function(){return a.asm._emscripten_enum_draco_GeometryAttribute_Type_POSITION.apply(null,arguments)},Vc=a._emscripten_enum_draco_GeometryAttribute_Type_TEX_COORD=function(){return a.asm._emscripten_enum_draco_GeometryAttribute_Type_TEX_COORD.apply(null,arguments)},Wc=a._emscripten_enum_draco_StatusCode_ERROR=function(){return a.asm._emscripten_enum_draco_StatusCode_ERROR.apply(null,
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194
javascript/draco_wasm_wrapper_gltf.js
View File

@ -1,57 +1,57 @@
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d){z.infos[a]={ptr:a,adjusted:a,type:b,destructor:d,refcount:0,caught:!1,rethrown:!1};z.last=a;"uncaught_exception"in ia?ia.uncaught_exception++:ia.uncaught_exception=1;throw a+" - Exception catching is disabled, this exception cannot be caught. Compile with -s DISABLE_EXCEPTION_CATCHING=0 or DISABLE_EXCEPTION_CATCHING=2 to catch.";},___gxx_personality_v0:function(){},___resumeException:function(a){z.last||(z.last=a);throw a+" - Exception catching is disabled, this exception cannot be caught. Compile with -s DISABLE_EXCEPTION_CATCHING=0 or DISABLE_EXCEPTION_CATCHING=2 to catch.";
},___setErrNo:function(c){a.___errno_location&&(w[a.___errno_location()>>2]=c);return c},___syscall140:function(a,b){t.varargs=b;try{var d=t.getStreamFromFD();t.get();var c=t.get(),e=t.get(),f=t.get();FS.llseek(d,c,f);w[e>>2]=d.position;d.getdents&&0===c&&0===f&&(d.getdents=null);return 0}catch(da){return"undefined"!==typeof FS&&da instanceof FS.ErrnoError||S(da),-da.errno}},___syscall146:L,___syscall6:function(a,b){t.varargs=b;try{var d=t.getStreamFromFD();FS.close(d);return 0}catch(l){return"undefined"!==
typeof FS&&l instanceof FS.ErrnoError||S(l),-l.errno}},_abort:function(){a.abort()},_emscripten_memcpy_big:function(a,b,d){O.set(O.subarray(b,b+d),a);return a},_pthread_getspecific:function(a){return ta[a]||0},_pthread_key_create:function(a,b){if(0==a)return 22;w[a>>2]=Ga;ta[Ga]=0;Ga++;return 0},_pthread_once:na,_pthread_setspecific:function(a,b){if(!(a in ta))return 22;ta[a]=b;return 0},DYNAMICTOP_PTR:X,tempDoublePtr:ub,ABORT:ja,STACKTOP:P,STACK_MAX:sa};var $a=a.asm(a.asmGlobalArg,a.asmLibraryArg,
E);a.asm=$a;a.___cxa_can_catch=function(){return a.asm.___cxa_can_catch.apply(null,arguments)};a.___cxa_is_pointer_type=function(){return a.asm.___cxa_is_pointer_type.apply(null,arguments)};var hb=a._emscripten_bind_AttributeOctahedronTransform_AttributeOctahedronTransform_0=function(){return a.asm._emscripten_bind_AttributeOctahedronTransform_AttributeOctahedronTransform_0.apply(null,arguments)},vb=a._emscripten_bind_AttributeOctahedronTransform_InitFromAttribute_1=function(){return a.asm._emscripten_bind_AttributeOctahedronTransform_InitFromAttribute_1.apply(null,
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Object.create(r.prototype);M.prototype.constructor=M;M.prototype.__class__=M;M.__cache__={};a.DecoderBuffer=M;M.prototype.Init=M.prototype.Init=function(a,d){var b=this.ptr;k.prepare();if("object"==typeof a&&"object"===typeof a){var c=k.alloc(a,ba);k.copy(a,ba,c);a=c}d&&"object"===typeof d&&(d=d.ptr);Fb(b,a,d)};M.prototype.__destroy__=M.prototype.__destroy__=function(){Gb(this.ptr)};h.prototype=Object.create(r.prototype);h.prototype.constructor=h;h.prototype.__class__=h;h.__cache__={};a.Decoder=h;
h.prototype.GetEncodedGeometryType=h.prototype.GetEncodedGeometryType=function(a){var b=this.ptr;a&&"object"===typeof a&&(a=a.ptr);return Tb(b,a)};h.prototype.DecodeBufferToPointCloud=h.prototype.DecodeBufferToPointCloud=function(a,d){var b=this.ptr;a&&"object"===typeof a&&(a=a.ptr);d&&"object"===typeof d&&(d=d.ptr);return T(Ib(b,a,d),A)};h.prototype.DecodeBufferToMesh=h.prototype.DecodeBufferToMesh=function(a,d){var b=this.ptr;a&&"object"===typeof a&&(a=a.ptr);d&&"object"===typeof d&&(d=d.ptr);return T(Hb(b,
a,d),A)};h.prototype.GetAttributeId=h.prototype.GetAttributeId=function(a,d){var b=this.ptr;a&&"object"===typeof a&&(a=a.ptr);d&&"object"===typeof d&&(d=d.ptr);return Ob(b,a,d)};h.prototype.GetAttributeIdByName=h.prototype.GetAttributeIdByName=function(a,d){var b=this.ptr;k.prepare();a&&"object"===typeof a&&(a=a.ptr);d=d&&"object"===typeof d?d.ptr:U(d);return Nb(b,a,d)};h.prototype.GetAttributeIdByMetadataEntry=h.prototype.GetAttributeIdByMetadataEntry=function(a,d,c){var b=this.ptr;k.prepare();a&&
"object"===typeof a&&(a=a.ptr);d=d&&"object"===typeof d?d.ptr:U(d);c=c&&"object"===typeof c?c.ptr:U(c);return Mb(b,a,d,c)};h.prototype.GetAttribute=h.prototype.GetAttribute=function(a,d){var b=this.ptr;a&&"object"===typeof a&&(a=a.ptr);d&&"object"===typeof d&&(d=d.ptr);return T(Sb(b,a,d),p)};h.prototype.GetAttributeByUniqueId=h.prototype.GetAttributeByUniqueId=function(a,d){var b=this.ptr;a&&"object"===typeof a&&(a=a.ptr);d&&"object"===typeof d&&(d=d.ptr);return T(Jb(b,a,d),p)};h.prototype.GetMetadata=
h.prototype.GetMetadata=function(a){var b=this.ptr;a&&"object"===typeof a&&(a=a.ptr);return T(Vb(b,a),N)};h.prototype.GetAttributeMetadata=h.prototype.GetAttributeMetadata=function(a,d){var b=this.ptr;a&&"object"===typeof a&&(a=a.ptr);d&&"object"===typeof d&&(d=d.ptr);return T(Rb(b,a,d),N)};h.prototype.GetFaceFromMesh=h.prototype.GetFaceFromMesh=function(a,d,c){var b=this.ptr;a&&"object"===typeof a&&(a=a.ptr);d&&"object"===typeof d&&(d=d.ptr);c&&"object"===typeof c&&(c=c.ptr);return!!Ub(b,a,d,c)};
h.prototype.GetTriangleStripsFromMesh=h.prototype.GetTriangleStripsFromMesh=function(a,d){var b=this.ptr;a&&"object"===typeof a&&(a=a.ptr);d&&"object"===typeof d&&(d=d.ptr);return Wb(b,a,d)};h.prototype.GetAttributeFloat=h.prototype.GetAttributeFloat=function(a,d,c){var b=this.ptr;a&&"object"===typeof a&&(a=a.ptr);d&&"object"===typeof d&&(d=d.ptr);c&&"object"===typeof c&&(c=c.ptr);return!!Lb(b,a,d,c)};h.prototype.GetAttributeFloatForAllPoints=h.prototype.GetAttributeFloatForAllPoints=function(a,c,
f){var b=this.ptr;a&&"object"===typeof a&&(a=a.ptr);c&&"object"===typeof c&&(c=c.ptr);f&&"object"===typeof f&&(f=f.ptr);return!!Kb(b,a,c,f)};h.prototype.GetAttributeIntForAllPoints=h.prototype.GetAttributeIntForAllPoints=function(a,c,f){var b=this.ptr;a&&"object"===typeof a&&(a=a.ptr);c&&"object"===typeof c&&(c=c.ptr);f&&"object"===typeof f&&(f=f.ptr);return!!Qb(b,a,c,f)};h.prototype.GetAttributeInt32ForAllPoints=h.prototype.GetAttributeInt32ForAllPoints=function(a,c,f){var b=this.ptr;a&&"object"===
typeof a&&(a=a.ptr);c&&"object"===typeof c&&(c=c.ptr);f&&"object"===typeof f&&(f=f.ptr);return!!Pb(b,a,c,f)};h.prototype.SkipAttributeTransform=h.prototype.SkipAttributeTransform=function(a){var b=this.ptr;a&&"object"===typeof a&&(a=a.ptr);Xb(b,a)};h.prototype.__destroy__=h.prototype.__destroy__=function(){Yb(this.ptr)};C.prototype=Object.create(r.prototype);C.prototype.constructor=C;C.prototype.__class__=C;C.__cache__={};a.Mesh=C;C.prototype.num_faces=C.prototype.num_faces=function(){return hc(this.ptr)};
C.prototype.num_attributes=C.prototype.num_attributes=function(){return gc(this.ptr)};C.prototype.num_points=C.prototype.num_points=function(){return ic(this.ptr)};C.prototype.__destroy__=C.prototype.__destroy__=function(){fc(this.ptr)};Y.prototype=Object.create(r.prototype);Y.prototype.constructor=Y;Y.prototype.__class__=Y;Y.__cache__={};a.VoidPtr=Y;Y.prototype.__destroy__=Y.prototype.__destroy__=function(){Lc(this.ptr)};J.prototype=Object.create(r.prototype);J.prototype.constructor=J;J.prototype.__class__=
J;J.__cache__={};a.DracoInt32Array=J;J.prototype.GetValue=J.prototype.GetValue=function(a){var b=this.ptr;a&&"object"===typeof a&&(a=a.ptr);return bc(b,a)};J.prototype.size=J.prototype.size=function(){return dc(this.ptr)};J.prototype.__destroy__=J.prototype.__destroy__=function(){cc(this.ptr)};N.prototype=Object.create(r.prototype);N.prototype.constructor=N;N.prototype.__class__=N;N.__cache__={};a.Metadata=N;N.prototype.__destroy__=N.prototype.__destroy__=function(){tc(this.ptr)};(function(){function b(){a.OK=
bd();a.ERROR=Zc();a.IO_ERROR=ad();a.INVALID_PARAMETER=$c();a.UNSUPPORTED_VERSION=dd();a.UNKNOWN_VERSION=cd();a.INVALID_GEOMETRY_TYPE=Qc();a.POINT_CLOUD=Rc();a.TRIANGULAR_MESH=Sc();a.ATTRIBUTE_INVALID_TRANSFORM=Mc();a.ATTRIBUTE_NO_TRANSFORM=Nc();a.ATTRIBUTE_QUANTIZATION_TRANSFORM=Pc();a.ATTRIBUTE_OCTAHEDRON_TRANSFORM=Oc();a.INVALID=Vc();a.POSITION=Xc();a.NORMAL=Wc();a.COLOR=Tc();a.TEX_COORD=Yc();a.GENERIC=Uc()}a.calledRun?b():Sa.unshift(b)})();if("function"===typeof a.onModuleParsed)a.onModuleParsed();
return c};"object"===typeof module&&module.exports&&(module.exports=DracoDecoderModule);

20
src/draco/attributes/geometry_indices.h
View File

@ -24,27 +24,27 @@
namespace draco {
// Index of an attribute value entry stored in a GeometryAttribute.
DEFINE_NEW_DRACO_INDEX_TYPE(int32_t, AttributeValueIndex)
DEFINE_NEW_DRACO_INDEX_TYPE(uint32_t, AttributeValueIndex)
// Index of a point in a PointCloud.
DEFINE_NEW_DRACO_INDEX_TYPE(int32_t, PointIndex)
DEFINE_NEW_DRACO_INDEX_TYPE(uint32_t, PointIndex)
// Vertex index in a Mesh or CornerTable.
DEFINE_NEW_DRACO_INDEX_TYPE(int32_t, VertexIndex);
DEFINE_NEW_DRACO_INDEX_TYPE(uint32_t, VertexIndex);
// Corner index that identifies a corner in a Mesh or CornerTable.
DEFINE_NEW_DRACO_INDEX_TYPE(int32_t, CornerIndex);
DEFINE_NEW_DRACO_INDEX_TYPE(uint32_t, CornerIndex);
// Face index for Mesh and CornerTable.
DEFINE_NEW_DRACO_INDEX_TYPE(int32_t, FaceIndex);
DEFINE_NEW_DRACO_INDEX_TYPE(uint32_t, FaceIndex);
// Constants denoting invalid indices.
static constexpr AttributeValueIndex kInvalidAttributeValueIndex(
std::numeric_limits<int32_t>::min() / 2);
std::numeric_limits<uint32_t>::max());
static constexpr PointIndex kInvalidPointIndex(
std::numeric_limits<int32_t>::min() / 2);
std::numeric_limits<uint32_t>::max());
static constexpr VertexIndex kInvalidVertexIndex(
std::numeric_limits<int32_t>::min() / 2);
std::numeric_limits<uint32_t>::max());
static constexpr CornerIndex kInvalidCornerIndex(
std::numeric_limits<int32_t>::min() / 2);
std::numeric_limits<uint32_t>::max());
static constexpr FaceIndex kInvalidFaceIndex(
std::numeric_limits<int32_t>::min() / 2);
std::numeric_limits<uint32_t>::max());
} // namespace draco

2
src/draco/compression/attributes/mesh_attribute_indices_encoding_observer.h
View File

@ -46,7 +46,7 @@ class MeshAttributeIndicesEncodingObserver {
void OnNewFaceVisited(FaceIndex /* face */) {}
void OnNewVertexVisited(VertexIndex vertex, CornerIndex corner) {
inline void OnNewVertexVisited(VertexIndex vertex, CornerIndex corner) {
const PointIndex point_id =
mesh_->face(FaceIndex(corner.value() / 3))[corner.value() % 3];
// Append the visited attribute to the encoding order.

4
src/draco/compression/attributes/prediction_schemes/mesh_prediction_scheme_constrained_multi_parallelogram_decoder.h
View File

@ -111,7 +111,7 @@ bool MeshPredictionSchemeConstrainedMultiParallelogramDecoder<
CornerIndex corner_id(start_corner_id);
int num_parallelograms = 0;
bool first_pass = true;
while (corner_id >= 0) {
while (corner_id != kInvalidCornerIndex) {
if (ComputeParallelogramPrediction(
p, corner_id, table, *vertex_to_data_map, out_data,
num_components, &(pred_vals[num_parallelograms][0]))) {
@ -134,7 +134,7 @@ bool MeshPredictionSchemeConstrainedMultiParallelogramDecoder<
if (corner_id == start_corner_id) {
break;
}
if (corner_id < 0 && first_pass) {
if (corner_id == kInvalidCornerIndex && first_pass) {
first_pass = false;
corner_id = table->SwingRight(start_corner_id);
}

7
src/draco/compression/attributes/prediction_schemes/mesh_prediction_scheme_constrained_multi_parallelogram_encoder.h
View File

@ -34,6 +34,9 @@ namespace draco {
// our current implementation limits the maximum number of used parallelograms
// to four, which covers >95% of the cases (on average, there are only two
// parallelograms available for any given vertex).
// All bits of the explicitly chosen configuration are stored together in a
// single context chosen by the total number of parallelograms available to
// choose from.
template <typename DataTypeT, class TransformT, class MeshDataT>
class MeshPredictionSchemeConstrainedMultiParallelogramEncoder
: public MeshPredictionSchemeEncoder<DataTypeT, TransformT, MeshDataT> {
@ -132,7 +135,7 @@ bool MeshPredictionSchemeConstrainedMultiParallelogramEncoder<
CornerIndex corner_id(start_corner_id);
int num_parallelograms = 0;
bool first_pass = true;
while (corner_id >= 0) {
while (corner_id != kInvalidCornerIndex) {
if (ComputeParallelogramPrediction(
p, corner_id, table, *vertex_to_data_map, in_data, num_components,
&(pred_vals[num_parallelograms][0]))) {
@ -155,7 +158,7 @@ bool MeshPredictionSchemeConstrainedMultiParallelogramEncoder<
if (corner_id == start_corner_id) {
break;
}
if (corner_id < 0 && first_pass) {
if (corner_id == kInvalidCornerIndex && first_pass) {
first_pass = false;
corner_id = table->SwingRight(start_corner_id);
}

2
src/draco/compression/attributes/prediction_schemes/mesh_prediction_scheme_multi_parallelogram_decoder.h
View File

@ -81,7 +81,7 @@ bool MeshPredictionSchemeMultiParallelogramDecoder<DataTypeT, TransformT,
for (int i = 0; i < num_components; ++i) {
pred_vals[i] = static_cast<DataTypeT>(0);
}
while (corner_id >= 0) {
while (corner_id != kInvalidCornerIndex) {
if (ComputeParallelogramPrediction(
p, corner_id, table, *vertex_to_data_map, out_data,
num_components, parallelogram_pred_vals.get())) {

2
src/draco/compression/attributes/prediction_schemes/mesh_prediction_scheme_multi_parallelogram_encoder.h
View File

@ -85,7 +85,7 @@ bool MeshPredictionSchemeMultiParallelogramEncoder<DataTypeT, TransformT,
for (int i = 0; i < num_components; ++i) {
pred_vals[i] = static_cast<DataTypeT>(0);
}
while (corner_id >= 0) {
while (corner_id != kInvalidCornerIndex) {
if (ComputeParallelogramPrediction(
p, corner_id, table, *vertex_to_data_map, in_data, num_components,
parallelogram_pred_vals.get())) {

2
src/draco/compression/attributes/prediction_schemes/mesh_prediction_scheme_parallelogram_shared.h
View File

@ -47,7 +47,7 @@ inline bool ComputeParallelogramPrediction(
const std::vector<int32_t> &vertex_to_data_map, const DataTypeT *in_data,
int num_components, DataTypeT *out_prediction) {
const CornerIndex oci = table->Opposite(ci);
if (oci < 0)
if (oci == kInvalidCornerIndex)
return false;
int vert_opp, vert_next, vert_prev;
GetParallelogramEntries<CornerTableT>(oci, table, vertex_to_data_map,

2
src/draco/compression/attributes/prediction_schemes/mesh_prediction_scheme_tex_coords_decoder.h
View File

@ -53,7 +53,7 @@ class MeshPredictionSchemeTexCoordsDecoder
bool DecodePredictionData(DecoderBuffer *buffer) override;
PredictionSchemeMethod GetPredictionMethod() const override {
return MESH_PREDICTION_TEX_COORDS;
return MESH_PREDICTION_TEX_COORDS_DEPRECATED;
}
bool IsInitialized() const override {

2
src/draco/compression/attributes/prediction_schemes/mesh_prediction_scheme_tex_coords_encoder.h
View File

@ -51,7 +51,7 @@ class MeshPredictionSchemeTexCoordsEncoder
bool EncodePredictionData(EncoderBuffer *buffer) override;
PredictionSchemeMethod GetPredictionMethod() const override {
return MESH_PREDICTION_TEX_COORDS;
return MESH_PREDICTION_TEX_COORDS_DEPRECATED;
}
bool IsInitialized() const override {

9
src/draco/compression/attributes/prediction_schemes/mesh_prediction_scheme_tex_coords_portable_predictor.h
View File

@ -134,7 +134,7 @@ void MeshPredictionSchemeTexCoordsPortablePredictor<
// position of predicted coordinate (C).
//
const VectorD<int64_t, 3> pn = prev_pos - next_pos;
const int64_t pn_norm2_squared = pn.SquaredNorm();
const uint64_t pn_norm2_squared = pn.SquaredNorm();
if (pn_norm2_squared != 0) {
// Compute the projection of C onto PN by computing dot product of CN with
// PN and normalizing it by length of PN. This gives us a factor |s| where
@ -157,7 +157,7 @@ void MeshPredictionSchemeTexCoordsPortablePredictor<
// Compute squared length of vector CX in position coordinate system:
const VectorD<int64_t, 3> x_pos =
next_pos + (cn_dot_pn * pn) / pn_norm2_squared;
const int64_t cx_norm2_squared = (tip_pos - x_pos).SquaredNorm();
const uint64_t cx_norm2_squared = (tip_pos - x_pos).SquaredNorm();
// Compute vector CX_UV in the uv space by rotating vector PN_UV by 90
// degrees and scaling it with factor CX.Norm2() / PN.Norm2():
@ -175,9 +175,10 @@ void MeshPredictionSchemeTexCoordsPortablePredictor<
//
VectorD<int64_t, 2> cx_uv(pn_uv[1], -pn_uv[0]); // Rotated PN_UV.
// Compute CX.Norm2() * PN.Norm2()
const int64_t norm_squared = IntSqrt(cx_norm2_squared * pn_norm2_squared);
const uint64_t norm_squared =
IntSqrt(cx_norm2_squared * pn_norm2_squared);
// Final cx_uv in the scaled coordinate space.
cx_uv = norm_squared * cx_uv;
cx_uv = cx_uv * norm_squared;
// Predicted uv coordinate is then computed by either adding or
// subtracting CX_UV to/from X_UV.

2
src/draco/compression/attributes/prediction_schemes/prediction_scheme_decoder_factory.h
View File

@ -68,7 +68,7 @@ struct MeshPredictionSchemeDecoderFactory {
mesh_data));
}
#ifdef DRACO_BACKWARDS_COMPATIBILITY_SUPPORTED
else if (method == MESH_PREDICTION_TEX_COORDS) {
else if (method == MESH_PREDICTION_TEX_COORDS_DEPRECATED) {
return std::unique_ptr<PredictionSchemeDecoder<DataTypeT, TransformT>>(
new MeshPredictionSchemeTexCoordsDecoder<DataTypeT, TransformT,
MeshDataT>(

2
src/draco/compression/attributes/prediction_schemes/prediction_scheme_encoder_factory.h
View File

@ -59,7 +59,7 @@ struct MeshPredictionSchemeEncoderFactory {
new MeshPredictionSchemeConstrainedMultiParallelogramEncoder<
DataTypeT, TransformT, MeshDataT>(attribute, transform,
mesh_data));
} else if (method == MESH_PREDICTION_TEX_COORDS) {
} else if (method == MESH_PREDICTION_TEX_COORDS_DEPRECATED) {
return std::unique_ptr<PredictionSchemeEncoder<DataTypeT, TransformT>>(
new MeshPredictionSchemeTexCoordsEncoder<DataTypeT, TransformT,
MeshDataT>(

2
src/draco/compression/attributes/prediction_schemes/prediction_scheme_factory.h
View File

@ -42,7 +42,7 @@ std::unique_ptr<PredictionSchemeT> CreateMeshPredictionScheme(
method == MESH_PREDICTION_CONSTRAINED_MULTI_PARALLELOGRAM ||
method == MESH_PREDICTION_TEX_COORDS_PORTABLE ||
method == MESH_PREDICTION_GEOMETRIC_NORMAL ||
method == MESH_PREDICTION_TEX_COORDS)) {
method == MESH_PREDICTION_TEX_COORDS_DEPRECATED)) {
const CornerTable *const ct = source->GetCornerTable();
const MeshAttributeIndicesEncodingData *const encoding_data =
source->GetAttributeEncodingData(att_id);

3
src/draco/compression/attributes/prediction_schemes/prediction_scheme_wrap_decoding_transform.h
View File

@ -56,7 +56,8 @@ class PredictionSchemeWrapDecodingTransform
return false;
this->set_min_value(min_value);
this->set_max_value(max_value);
this->InitCorrectionBounds();
if (!this->InitCorrectionBounds())
return false;
return true;
}
};

9
src/draco/compression/attributes/prediction_schemes/prediction_scheme_wrap_transform_base.h
View File

@ -78,12 +78,17 @@ class PredictionSchemeWrapTransformBase {
}
protected:
void InitCorrectionBounds() {
max_dif_ = 1 + max_value_ - min_value_;
bool InitCorrectionBounds() {
const int64_t dif =
static_cast<int64_t>(max_value_) - static_cast<int64_t>(min_value_);
if (dif < 0 || dif >= std::numeric_limits<DataTypeT>::max())
return false;
max_dif_ = 1 + static_cast<DataTypeT>(dif);
max_correction_ = max_dif_ / 2;
min_correction_ = -max_correction_;
if ((max_dif_ & 1) == 0)
max_correction_ -= 1;
return true;
}
inline int num_components() const { return num_components_; }

7
src/draco/compression/attributes/sequential_integer_attribute_encoder.cc
View File

@ -146,9 +146,14 @@ bool SequentialIntegerAttributeEncoder::EncodeValues(
if (encoder() == nullptr || encoder()->options()->GetGlobalBool(
"use_built_in_attribute_compression", true)) {
out_buffer->Encode(static_cast<uint8_t>(1));
Options symbol_encoding_options;
if (encoder() != nullptr) {
SetSymbolEncodingCompressionLevel(&symbol_encoding_options,
10 - encoder()->options()->GetSpeed());
}
if (!EncodeSymbols(reinterpret_cast<uint32_t *>(encoded_data.data()),
point_ids.size() * num_components, num_components,
out_buffer)) {
&symbol_encoding_options, out_buffer)) {
return false;
}
} else {

9
src/draco/compression/config/compression_shared.h
View File

@ -80,7 +80,7 @@ enum PredictionSchemeMethod {
PREDICTION_DIFFERENCE = 0,
MESH_PREDICTION_PARALLELOGRAM = 1,
MESH_PREDICTION_MULTI_PARALLELOGRAM = 2,
MESH_PREDICTION_TEX_COORDS = 3,
MESH_PREDICTION_TEX_COORDS_DEPRECATED = 3,
MESH_PREDICTION_CONSTRAINED_MULTI_PARALLELOGRAM = 4,
MESH_PREDICTION_TEX_COORDS_PORTABLE = 5,
MESH_PREDICTION_GEOMETRIC_NORMAL = 6,
@ -134,6 +134,13 @@ enum NormalPredictionMode {
TRIANGLE_AREA = 1,
};
// Different methods used for symbol entropy encoding.
enum SymbolCodingMethod {
SYMBOL_CODING_TAGGED = 0,
SYMBOL_CODING_RAW = 1,
NUM_SYMBOL_CODING_METHODS,
};
// Mask for setting and getting the bit for metadata in |flags| of header.
#define METADATA_FLAG_MASK 0x8000

6
src/draco/compression/encode.cc
View File

@ -79,10 +79,14 @@ void Encoder::SetEncodingMethod(int encoding_method) {
Base::SetEncodingMethod(encoding_method);
}
void Encoder::SetAttributePredictionScheme(GeometryAttribute::Type type,
Status Encoder::SetAttributePredictionScheme(GeometryAttribute::Type type,
int prediction_scheme_method) {
Status status = CheckPredictionScheme(type, prediction_scheme_method);
if (!status.ok())
return status;
options().SetAttributeInt(type, "prediction_scheme",
prediction_scheme_method);
return status;
}
} // namespace draco

2
src/draco/compression/encode.h
View File

@ -105,7 +105,7 @@ class Encoder
//
// Note that in case the desired prediction cannot be used, the default
// prediction will be automatically used instead.
void SetAttributePredictionScheme(GeometryAttribute::Type type,
Status SetAttributePredictionScheme(GeometryAttribute::Type type,
int prediction_scheme_method);
// Sets the desired encoding method for a given geometry. By default, encoding

26
src/draco/compression/encode_base.h
View File

@ -15,6 +15,10 @@
#ifndef DRACO_SRC_DRACO_COMPRESSION_ENCODE_BASE_H_
#define DRACO_SRC_DRACO_COMPRESSION_ENCODE_BASE_H_
#include "draco/attributes/geometry_attribute.h"
#include "draco/compression/config/compression_shared.h"
#include "draco/core/status.h"
namespace draco {
// Base class for our geometry encoder classes. |EncoderOptionsT| specifies
@ -43,6 +47,28 @@ class EncoderBase {
options_.SetGlobalInt("encoding_method", encoding_method);
}
Status CheckPredictionScheme(GeometryAttribute::Type att_type,
int prediction_scheme) {
if (prediction_scheme < 0)
return Status(Status::ERROR, "Invalid prediction scheme requested.");
if (prediction_scheme >= NUM_PREDICTION_SCHEMES)
return Status(Status::ERROR, "Invalid prediction scheme requested.");
if (prediction_scheme == MESH_PREDICTION_TEX_COORDS_DEPRECATED)
return Status(Status::ERROR,
"MESH_PREDICTION_TEX_COORDS_DEPRECATED is deprecated.");
if (prediction_scheme == MESH_PREDICTION_TEX_COORDS_PORTABLE) {
if (att_type != GeometryAttribute::TEX_COORD)
return Status(Status::ERROR,
"Invalid prediction scheme for attribute type.");
}
if (prediction_scheme == MESH_PREDICTION_GEOMETRIC_NORMAL) {
if (att_type != GeometryAttribute::NORMAL)
return Status(Status::ERROR,
"Invalid prediction scheme for attribute type.");
}
return Status();
}
private:
EncoderOptionsT options_;
};

10
src/draco/compression/expert_encode.cc
View File

@ -147,10 +147,16 @@ void ExpertEncoder::SetEncodingMethod(int encoding_method) {
Base::SetEncodingMethod(encoding_method);
}
void ExpertEncoder::SetAttributePredictionScheme(int32_t attribute_id,
int prediction_scheme_method) {
Status ExpertEncoder::SetAttributePredictionScheme(
int32_t attribute_id, int prediction_scheme_method) {
auto att = point_cloud_->GetAttributeByUniqueId(attribute_id);
auto att_type = att->attribute_type();
Status status = CheckPredictionScheme(att_type, prediction_scheme_method);
if (!status.ok())
return status;
options().SetAttributeInt(attribute_id, "prediction_scheme",
prediction_scheme_method);
return status;
}
} // namespace draco

2
src/draco/compression/expert_encode.h
View File

@ -122,7 +122,7 @@ class ExpertEncoder : public EncoderBase<EncoderOptions> {
//
// Note that in case the desired prediction cannot be used, the default
// prediction will be automatically used instead.
void SetAttributePredictionScheme(int32_t attribute_id,
Status SetAttributePredictionScheme(int32_t attribute_id,
int prediction_scheme_method);
private:

12
src/draco/compression/mesh/mesh_edgebreaker_decoder_impl.cc
View File

@ -621,7 +621,7 @@ int MeshEdgeBreakerDecoderImpl<TraversalDecoder>::DecodeConnectivity(
// Also update the vertex id at corner "n" and all corners that are
// connected to it in the CCW direction.
while (corner_n >= 0) {
while (corner_n != kInvalidCornerIndex) {
corner_table_->MapCornerToVertex(corner_n, vertex_p);
corner_n = corner_table_->SwingLeft(corner_n);
}
@ -781,7 +781,7 @@ int MeshEdgeBreakerDecoderImpl<TraversalDecoder>::DecodeConnectivity(
for (const VertexIndex invalid_vert : invalid_vertices) {
// Find the last valid vertex and swap it with the isolated vertex.
VertexIndex src_vert(num_vertices - 1);
while (corner_table_->LeftMostCorner(src_vert) < 0) {
while (corner_table_->LeftMostCorner(src_vert) == kInvalidCornerIndex) {
// The last vertex is invalid, proceed to the previous one.
src_vert = VertexIndex(--num_vertices - 1);
}
@ -922,7 +922,7 @@ bool MeshEdgeBreakerDecoderImpl<TraversalDecoder>::
for (int c = 0; c < 3; ++c) {
const CornerIndex opp_corner = corner_table_->Opposite(corners[c]);
if (opp_corner < 0) {
if (opp_corner == kInvalidCornerIndex) {
// Don't decode attribute seams on boundary edges (every boundary edge
// is automatically an attribute seam).
for (uint32_t i = 0; i < attribute_data_.size(); ++i) {
@ -951,7 +951,7 @@ bool MeshEdgeBreakerDecoderImpl<
const FaceIndex src_face_id = corner_table_->Face(corner);
for (int c = 0; c < 3; ++c) {
const CornerIndex opp_corner = corner_table_->Opposite(corners[c]);
if (opp_corner < 0) {
if (opp_corner == kInvalidCornerIndex) {
// Don't decode attribute seams on boundary edges (every boundary edge
// is automatically an attribute seam).
for (uint32_t i = 0; i < attribute_data_.size(); ++i) {
@ -1007,7 +1007,7 @@ bool MeshEdgeBreakerDecoderImpl<TraversalDecoder>::AssignPointsToCorners(
std::vector<int32_t> corner_to_point_map(corner_table_->num_corners());
for (int v = 0; v < corner_table_->num_vertices(); ++v) {
CornerIndex c = corner_table_->LeftMostCorner(VertexIndex(v));
if (c < 0)
if (c == kInvalidCornerIndex)
continue; // Isolated vertex.
CornerIndex deduplication_first_corner = c;
if (is_vert_hole_[v]) {
@ -1053,7 +1053,7 @@ bool MeshEdgeBreakerDecoderImpl<TraversalDecoder>::AssignPointsToCorners(
// Traverse in CW direction.
CornerIndex prev_c = c;
c = corner_table_->SwingRight(c);
while (c >= 0 && c != deduplication_first_corner) {
while (c != kInvalidCornerIndex && c != deduplication_first_corner) {
bool attribute_seam = false;
for (uint32_t i = 0; i < attribute_data_.size(); ++i) {
if (attribute_data_[i].connectivity_data.Vertex(c) !=

6
src/draco/compression/mesh/mesh_edgebreaker_encoder_impl.cc
View File

@ -463,7 +463,7 @@ bool MeshEdgeBreakerEncoderImpl<TraversalEncoder>::FindInitFaceConfiguration(
// Boundary vertex found. Find the first boundary edge attached to the
// point and return the corner opposite to it.
CornerIndex right_corner = corner_index;
while (right_corner >= 0) {
while (right_corner != kInvalidCornerIndex) {
corner_index = right_corner;
right_corner = corner_table_->SwingRight(right_corner);
}
@ -489,7 +489,7 @@ bool MeshEdgeBreakerEncoderImpl<TraversalEncoder>::EncodeConnectivityFromCorner(
// Currently processed corner.
corner_id = corner_traversal_stack_.back();
// Make sure the face hasn't been visited yet.
if (corner_id < 0 ||
if (corner_id == kInvalidCornerIndex ||
visited_faces_[corner_table_->Face(corner_id).value()]) {
// This face has been already traversed.
corner_traversal_stack_.pop_back();
@ -793,7 +793,7 @@ bool MeshEdgeBreakerEncoderImpl<
visited_faces_[src_face_id.value()] = true;
for (int c = 0; c < 3; ++c) {
const CornerIndex opp_corner = corner_table_->Opposite(corners[c]);
if (opp_corner < 0)
if (opp_corner == kInvalidCornerIndex)
continue; // Don't encode attribute seams on boundary edges.
const FaceIndex opp_face_id = corner_table_->Face(opp_corner);
// Don't encode edges when the opposite face has been already processed.

6
src/draco/compression/mesh/mesh_edgebreaker_traversal_valence_encoder.h
View File

@ -115,7 +115,7 @@ class MeshEdgeBreakerTraversalValenceEncoder
// update the valence on the "left vertex".
int num_left_faces = 0;
CornerIndex act_c = corner_table_->Opposite(prev);
while (act_c >= 0) {
while (act_c != kInvalidCornerIndex) {
if (encoder_impl()->IsFaceEncoded(corner_table_->Face(act_c)))
break; // Stop when we reach the first visited face.
++num_left_faces;
@ -130,7 +130,7 @@ class MeshEdgeBreakerTraversalValenceEncoder
int num_right_faces = 0;
act_c = corner_table_->Opposite(next);
while (act_c >= 0) {
while (act_c != kInvalidCornerIndex) {
if (encoder_impl()->IsFaceEncoded(corner_table_->Face(act_c)))
break; // Stop when we reach the first visited face.
++num_right_faces;
@ -190,7 +190,7 @@ class MeshEdgeBreakerTraversalValenceEncoder
EncodeVarint<uint32_t>(context_symbols_[i].size(), GetOutputBuffer());
if (context_symbols_[i].size() > 0) {
EncodeSymbols(context_symbols_[i].data(), context_symbols_[i].size(), 1,
GetOutputBuffer());
nullptr, GetOutputBuffer());
}
}
}

3
src/draco/compression/mesh/mesh_sequential_encoder.cc
View File

@ -115,7 +115,8 @@ bool MeshSequentialEncoder::CompressAndEncodeIndices() {
last_index_value = index_value;
}
}
EncodeSymbols(indices_buffer.data(), indices_buffer.size(), 1, buffer());
EncodeSymbols(indices_buffer.data(), indices_buffer.size(), 1, nullptr,
buffer());
return true;
}

2
src/draco/core/bit_coders/symbol_bit_encoder.cc
View File

@ -17,7 +17,7 @@ void SymbolBitEncoder::EncodeLeastSignificantBits32(int nbits, uint32_t value) {
void SymbolBitEncoder::EndEncoding(EncoderBuffer *target_buffer) {
target_buffer->Encode(static_cast<uint32_t>(symbols_.size()));
EncodeSymbols(symbols_.data(), symbols_.size(), 1, target_buffer);
EncodeSymbols(symbols_.data(), symbols_.size(), 1, nullptr, target_buffer);
Clear();
}

5
src/draco/core/draco_index_type_vector.h
View File

@ -27,6 +27,7 @@ namespace draco {
// draco_index_type.h .
// TODO(ostava): Make the interface more complete. It's currently missing
// features such as iterators.
// TODO(scottgodfrey): Make unit tests for this class.
template <class IndexTypeT, class ValueTypeT>
class IndexTypeVector {
public:
@ -43,6 +44,10 @@ class IndexTypeVector {
void resize(size_t size, const ValueTypeT &val) { vector_.resize(size, val); }
void assign(size_t size, const ValueTypeT &val) { vector_.assign(size, val); }
void swap(IndexTypeVector<IndexTypeT, ValueTypeT> &arg) {
vector_.swap(arg.vector_);
}
size_t size() const { return vector_.size(); }
void push_back(const ValueTypeT &val) { vector_.push_back(val); }

2
src/draco/core/draco_version.h
View File

@ -18,7 +18,7 @@
namespace draco {
// Draco version is comprised of <major>.<minor>.<revision>.
static const char kDracoVersion[] = "1.2.4";
static const char kDracoVersion[] = "1.2.5";
const char *Version() { return kDracoVersion; }

3
src/draco/core/options.h
View File

@ -79,7 +79,8 @@ void Options::SetVector(const std::string &name, const DataTypeT *vec,
if (i > 0)
out += " ";
// GNU STL on android doesn't include a proper std::to_string, but the libc++ version does
// GNU STL on android doesn't include a proper std::to_string, but the libc++
// version does
#if defined(ANDROID) && !defined(_LIBCPP_VERSION)
out += to_string(vec[i]);
#else

17
src/draco/core/rans_symbol_coding.h
View File

@ -21,20 +21,21 @@
namespace draco {
// Computes the desired precision of the rANS method for the specified maximal
// symbol bit length of the input data.
constexpr int ComputeRAnsUnclampedPrecision(int max_bit_length) {
return (3 * max_bit_length) / 2;
// Computes the desired precision of the rANS method for the specified number of
// unique symbols the input data (defined by their bit_length).
constexpr int ComputeRAnsUnclampedPrecision(int symbols_bit_length) {
return (3 * symbols_bit_length) / 2;
}
// Computes the desired precision clamped to guarantee a valid functionality of
// our rANS library (which is between 12 to 20 bits).
constexpr int ComputeRAnsPrecisionFromMaxSymbolBitLength(int max_bit_length) {
return ComputeRAnsUnclampedPrecision(max_bit_length) < 12
constexpr int ComputeRAnsPrecisionFromUniqueSymbolsBitLength(
int symbols_bit_length) {
return ComputeRAnsUnclampedPrecision(symbols_bit_length) < 12
? 12
: ComputeRAnsUnclampedPrecision(max_bit_length) > 20
: ComputeRAnsUnclampedPrecision(symbols_bit_length) > 20
? 20
: ComputeRAnsUnclampedPrecision(max_bit_length);
: ComputeRAnsUnclampedPrecision(symbols_bit_length);
}
// Compute approximate frequency table size needed for storing the provided

23
src/draco/core/rans_symbol_decoder.h
View File

@ -24,9 +24,9 @@ namespace draco {
// A helper class for decoding symbols using the rANS algorithm (see ans.h).
// The class can be used to decode the probability table and the data encoded
// by the RAnsSymbolEncoder. |max_symbol_bit_length_t| must be the same as the
// one used for the corresponding RAnsSymbolEncoder.
template <int max_symbol_bit_length_t>
// by the RAnsSymbolEncoder. |unique_symbols_bit_length_t| must be the same as
// the one used for the corresponding RAnsSymbolEncoder.
template <int unique_symbols_bit_length_t>
class RAnsSymbolDecoder {
public:
RAnsSymbolDecoder() : num_symbols_(0) {}
@ -43,9 +43,9 @@ class RAnsSymbolDecoder {
void EndDecoding();
private:
static constexpr int max_symbols_ = 1 << max_symbol_bit_length_t;
static constexpr int rans_precision_bits_ =
ComputeRAnsPrecisionFromMaxSymbolBitLength(max_symbol_bit_length_t);
ComputeRAnsPrecisionFromUniqueSymbolsBitLength(
unique_symbols_bit_length_t);
static constexpr int rans_precision_ = 1 << rans_precision_bits_;
std::vector<uint32_t> probability_table_;
@ -53,8 +53,9 @@ class RAnsSymbolDecoder {
RAnsDecoder<rans_precision_bits_> ans_;
};
template <int max_symbol_bit_length_t>
bool RAnsSymbolDecoder<max_symbol_bit_length_t>::Create(DecoderBuffer *buffer) {
template <int unique_symbols_bit_length_t>
bool RAnsSymbolDecoder<unique_symbols_bit_length_t>::Create(
DecoderBuffer *buffer) {
// Check that the DecoderBuffer version is set.
if (buffer->bitstream_version() == 0)
return false;
@ -112,8 +113,8 @@ bool RAnsSymbolDecoder<max_symbol_bit_length_t>::Create(DecoderBuffer *buffer) {
return true;
}
template <int max_symbol_bit_length_t>
bool RAnsSymbolDecoder<max_symbol_bit_length_t>::StartDecoding(
template <int unique_symbols_bit_length_t>
bool RAnsSymbolDecoder<unique_symbols_bit_length_t>::StartDecoding(
DecoderBuffer *buffer) {
uint64_t bytes_encoded;
// Decode the number of bytes encoded by the encoder.
@ -138,8 +139,8 @@ bool RAnsSymbolDecoder<max_symbol_bit_length_t>::StartDecoding(
return true;
}
template <int max_symbol_bit_length_t>
void RAnsSymbolDecoder<max_symbol_bit_length_t>::EndDecoding() {
template <int unique_symbols_bit_length_t>
void RAnsSymbolDecoder<unique_symbols_bit_length_t>::EndDecoding() {
ans_.read_end();
}

24
src/draco/core/rans_symbol_encoder.h
View File

@ -29,7 +29,7 @@ namespace draco {
// A helper class for encoding symbols using the rANS algorithm (see ans.h).
// The class can be used to initialize and encode probability table needed by
// rANS, and to perform encoding of symbols into the provided EncoderBuffer.
template <int max_symbol_bit_length_t>
template <int unique_symbols_bit_length_t>
class RAnsSymbolEncoder {
public:
RAnsSymbolEncoder()
@ -67,9 +67,9 @@ class RAnsSymbolEncoder {
// Encodes the probability table into the output buffer.
bool EncodeTable(EncoderBuffer *buffer);
static constexpr int max_symbols_ = 1 << max_symbol_bit_length_t;
static constexpr int rans_precision_bits_ =
ComputeRAnsPrecisionFromMaxSymbolBitLength(max_symbol_bit_length_t);
ComputeRAnsPrecisionFromUniqueSymbolsBitLength(
unique_symbols_bit_length_t);
static constexpr int rans_precision_ = 1 << rans_precision_bits_;
std::vector<rans_sym> probability_table_;
@ -83,11 +83,9 @@ class RAnsSymbolEncoder {
uint64_t buffer_offset_;
};
template <int max_symbol_bit_length_t>
bool RAnsSymbolEncoder<max_symbol_bit_length_t>::Create(
template <int unique_symbols_bit_length_t>
bool RAnsSymbolEncoder<unique_symbols_bit_length_t>::Create(
const uint64_t *frequencies, int num_symbols, EncoderBuffer *buffer) {
if (num_symbols > max_symbols_)
return false;
// Compute the total of the input frequencies.
uint64_t total_freq = 0;
int max_valid_symbol = 0;
@ -194,8 +192,8 @@ bool RAnsSymbolEncoder<max_symbol_bit_length_t>::Create(
return true;
}
template <int max_symbol_bit_length_t>
bool RAnsSymbolEncoder<max_symbol_bit_length_t>::EncodeTable(
template <int unique_symbols_bit_length_t>
bool RAnsSymbolEncoder<unique_symbols_bit_length_t>::EncodeTable(
EncoderBuffer *buffer) {
EncodeVarint(num_symbols_, buffer);
// Use varint encoding for the probabilities (first two bits represent the
@ -242,8 +240,8 @@ bool RAnsSymbolEncoder<max_symbol_bit_length_t>::EncodeTable(
return true;
}
template <int max_symbol_bit_length_t>
void RAnsSymbolEncoder<max_symbol_bit_length_t>::StartEncoding(
template <int unique_symbols_bit_length_t>
void RAnsSymbolEncoder<unique_symbols_bit_length_t>::StartEncoding(
EncoderBuffer *buffer) {
// Allocate extra storage just in case.
const uint64_t required_bits = 2 * num_expected_bits_ + 32;
@ -256,8 +254,8 @@ void RAnsSymbolEncoder<max_symbol_bit_length_t>::StartEncoding(
ans_.write_init(data + buffer_offset_);
}
template <int max_symbol_bit_length_t>
void RAnsSymbolEncoder<max_symbol_bit_length_t>::EndEncoding(
template <int unique_symbols_bit_length_t>
void RAnsSymbolEncoder<unique_symbols_bit_length_t>::EndEncoding(
EncoderBuffer *buffer) {
char *const src = const_cast<char *>(buffer->data()) + buffer_offset_;

19
src/draco/core/symbol_coding_test.cc
View File

@ -43,7 +43,7 @@ TEST_F(SymbolCodingTest, TestLargeNumbers) {
const uint32_t in[] = {12345678, 1223333, 111, 5};
const int num_values = sizeof(in) / sizeof(uint32_t);
EncoderBuffer eb;
ASSERT_TRUE(EncodeSymbols(in, num_values, 1, &eb));
ASSERT_TRUE(EncodeSymbols(in, num_values, 1, nullptr, &eb));
std::vector<uint32_t> out;
out.resize(num_values);
@ -70,8 +70,14 @@ TEST_F(SymbolCodingTest, TestManyNumbers) {
for (int i = 0; i < num_pairs; ++i) {
in_values.insert(in_values.end(), in[i].second, in[i].first);
}
for (int method = 0; method < NUM_SYMBOL_CODING_METHODS; ++method) {
// Test the encoding using all available symbol coding methods.
Options options;
SetSymbolEncodingMethod(&options, static_cast<SymbolCodingMethod>(method));
EncoderBuffer eb;
ASSERT_TRUE(EncodeSymbols(in_values.data(), in_values.size(), 1, &eb));
ASSERT_TRUE(
EncodeSymbols(in_values.data(), in_values.size(), 1, &options, &eb));
std::vector<uint32_t> out_values;
out_values.resize(in_values.size());
DecoderBuffer db;
@ -81,12 +87,13 @@ TEST_F(SymbolCodingTest, TestManyNumbers) {
for (uint32_t i = 0; i < in_values.size(); ++i) {
ASSERT_EQ(in_values[i], out_values[i]);
}
}
}
TEST_F(SymbolCodingTest, TestEmpty) {
// This test verifies that SymbolCoding successfully encodes an empty array.
EncoderBuffer eb;
ASSERT_TRUE(EncodeSymbols(nullptr, 0, 1, &eb));
ASSERT_TRUE(EncodeSymbols(nullptr, 0, 1, nullptr, &eb));
DecoderBuffer db;
db.Init(eb.data(), eb.size());
db.set_bitstream_version(bitstream_version_);
@ -98,7 +105,7 @@ TEST_F(SymbolCodingTest, TestOneSymbol) {
// symbol.
EncoderBuffer eb;
const std::vector<uint32_t> in(1200, 0);
ASSERT_TRUE(EncodeSymbols(in.data(), in.size(), 1, &eb));
ASSERT_TRUE(EncodeSymbols(in.data(), in.size(), 1, nullptr, &eb));
std::vector<uint32_t> out(in.size());
DecoderBuffer db;
@ -122,7 +129,7 @@ TEST_F(SymbolCodingTest, TestBitLengths) {
std::vector<uint32_t> out(in.size());
for (int i = 0; i < bit_lengths; ++i) {
eb.Clear();
ASSERT_TRUE(EncodeSymbols(in.data(), i + 1, 1, &eb));
ASSERT_TRUE(EncodeSymbols(in.data(), i + 1, 1, nullptr, &eb));
DecoderBuffer db;
db.Init(eb.data(), eb.size());
db.set_bitstream_version(bitstream_version_);
@ -139,7 +146,7 @@ TEST_F(SymbolCodingTest, TestLargeNumberCondition) {
EncoderBuffer eb;
constexpr int num_symbols = 1000000;
const std::vector<uint32_t> in(num_symbols, 1 << 18);
ASSERT_TRUE(EncodeSymbols(in.data(), in.size(), 1, &eb));
ASSERT_TRUE(EncodeSymbols(in.data(), in.size(), 1, nullptr, &eb));
std::vector<uint32_t> out(in.size());
DecoderBuffer db;

4
src/draco/core/symbol_decoding.cc
View File

@ -37,10 +37,10 @@ bool DecodeSymbols(uint32_t num_values, int num_components,
uint8_t scheme;
if (!src_buffer->Decode(&scheme))
return false;
if (scheme == 0) {
if (scheme == SYMBOL_CODING_TAGGED) {
return DecodeTaggedSymbols<RAnsSymbolDecoder>(num_values, num_components,
src_buffer, out_values);
} else if (scheme == 1) {
} else if (scheme == SYMBOL_CODING_RAW) {
return DecodeRawSymbols<RAnsSymbolDecoder>(num_values, src_buffer,
out_values);
}

110
src/draco/core/symbol_encoding.cc
View File

@ -26,9 +26,22 @@ namespace draco {
constexpr int32_t kMaxTagSymbolBitLength = 32;
constexpr int kMaxRawEncodingBitLength = 18;
constexpr int kDefaultSymbolCodingCompressionLevel = 7;
typedef uint64_t TaggedBitLengthFrequencies[kMaxTagSymbolBitLength];
void SetSymbolEncodingMethod(Options *options, SymbolCodingMethod method) {
options->SetInt("symbol_encoding_method", method);
}
bool SetSymbolEncodingCompressionLevel(Options *options,
int compression_level) {
if (compression_level < 0 || compression_level > 10)
return false;
options->SetInt("symbol_encoding_compression_level", compression_level);
return true;
}
// Computes bit lengths of the input values. If num_components > 1, the values
// are processed in "num_components" sized chunks and the bit length is always
// computed for the largest value from the chunk.
@ -75,12 +88,14 @@ static int64_t ApproximateTaggedSchemeBits(
}
static int64_t ApproximateRawSchemeBits(const uint32_t *symbols,
int num_symbols, uint32_t max_value) {
int num_symbols, uint32_t max_value,
int *out_num_unique_symbols) {
int num_unique_symbols;
const int64_t data_bits = ComputeShannonEntropy(
symbols, num_symbols, max_value, &num_unique_symbols);
const int64_t table_bits =
ApproximateRAnsFrequencyTableBits(max_value, num_unique_symbols);
*out_num_unique_symbols = num_unique_symbols;
return table_bits + data_bits;
}
@ -92,10 +107,11 @@ bool EncodeTaggedSymbols(const uint32_t *symbols, int num_values,
template <template <int> class SymbolEncoderT>
bool EncodeRawSymbols(const uint32_t *symbols, int num_values,
const uint32_t *max_value, EncoderBuffer *target_buffer);
uint32_t max_entry_value, int32_t num_unique_symbols,
const Options *options, EncoderBuffer *target_buffer);
bool EncodeSymbols(const uint32_t *symbols, int num_values, int num_components,
EncoderBuffer *target_buffer) {
const Options *options, EncoderBuffer *target_buffer) {
if (num_values < 0)
return false;
if (num_values == 0)
@ -114,25 +130,39 @@ bool EncodeSymbols(const uint32_t *symbols, int num_values, int num_components,
// Approximate number of bits needed for storing the symbols using the raw
// scheme.
const int64_t raw_scheme_total_bits =
ApproximateRawSchemeBits(symbols, num_values, max_value);
int num_unique_symbols = 0;
const int64_t raw_scheme_total_bits = ApproximateRawSchemeBits(
symbols, num_values, max_value, &num_unique_symbols);
// The maximum bit length of a single entry value that we can encode using
// the raw scheme.
const int max_value_bit_length =
bits::MostSignificantBit(std::max(1u, max_value)) + 1;
int method = -1;
if (options != nullptr && options->IsOptionSet("symbol_encoding_method")) {
method = options->GetInt("symbol_encoding_method");
} else {
if (tagged_scheme_total_bits < raw_scheme_total_bits ||
max_value_bit_length > kMaxRawEncodingBitLength) {
method = SYMBOL_CODING_TAGGED;
} else {
method = SYMBOL_CODING_RAW;
}
}
// Use the tagged scheme.
target_buffer->Encode(static_cast<uint8_t>(0));
target_buffer->Encode(static_cast<uint8_t>(method));
if (method == SYMBOL_CODING_TAGGED) {
return EncodeTaggedSymbols<RAnsSymbolEncoder>(
symbols, num_values, num_components, bit_lengths, target_buffer);
}
// Else use the raw scheme.
target_buffer->Encode(static_cast<uint8_t>(1));
return EncodeRawSymbols<RAnsSymbolEncoder>(symbols, num_values, &max_value,
if (method == SYMBOL_CODING_RAW) {
return EncodeRawSymbols<RAnsSymbolEncoder>(symbols, num_values, max_value,
num_unique_symbols, options,
target_buffer);
}
// Unknown method selected.
return false;
}
template <template <int> class SymbolEncoderT>
@ -160,7 +190,8 @@ bool EncodeTaggedSymbols(const uint32_t *symbols, int num_values,
EncoderBuffer value_buffer;
// Number of expected bits we need to store the values (can be optimized if
// needed).
const uint64_t value_bits = kMaxTagSymbolBitLength * num_values;
const uint64_t value_bits =
kMaxTagSymbolBitLength * static_cast<uint64_t>(num_values);
// Create encoder for encoding the bit tags.
SymbolEncoderT<5> tag_encoder;
@ -207,7 +238,7 @@ bool EncodeTaggedSymbols(const uint32_t *symbols, int num_values,
template <class SymbolEncoderT>
bool EncodeRawSymbolsInternal(const uint32_t *symbols, int num_values,
const uint32_t &max_entry_value,
uint32_t max_entry_value,
EncoderBuffer *target_buffer) {
// Count the frequency of each entry value.
std::vector<uint64_t> frequencies(max_entry_value + 1, 0);
@ -217,7 +248,6 @@ bool EncodeRawSymbolsInternal(const uint32_t *symbols, int num_values,
SymbolEncoderT encoder;
encoder.Create(frequencies.data(), frequencies.size(), target_buffer);
encoder.StartEncoding(target_buffer);
// Encode all values.
if (SymbolEncoderT::needs_reverse_encoding()) {
@ -235,29 +265,45 @@ bool EncodeRawSymbolsInternal(const uint32_t *symbols, int num_values,
template <template <int> class SymbolEncoderT>
bool EncodeRawSymbols(const uint32_t *symbols, int num_values,
const uint32_t *max_value, EncoderBuffer *target_buffer) {
uint32_t max_entry_value = 0;
// If the max_value is not provided, find it.
if (max_value != nullptr) {
max_entry_value = *max_value;
} else {
for (int i = 0; i < num_values; ++i) {
if (symbols[i] > max_entry_value) {
max_entry_value = symbols[i];
uint32_t max_entry_value, int32_t num_unique_symbols,
const Options *options, EncoderBuffer *target_buffer) {
int symbol_bits = 0;
if (num_unique_symbols > 0) {
symbol_bits = bits::MostSignificantBit(num_unique_symbols);
}
}
}
int max_value_bits = 0;
if (max_entry_value > 0) {
max_value_bits = bits::MostSignificantBit(max_entry_value);
}
const int max_value_bit_length = max_value_bits + 1;
// Currently, we don't support encoding of values larger than 2^18.
if (max_value_bit_length > kMaxRawEncodingBitLength)
int unique_symbols_bit_length = symbol_bits + 1;
// Currently, we don't support encoding of more than 2^18 unique symbols.
if (unique_symbols_bit_length > kMaxRawEncodingBitLength)
return false;
target_buffer->Encode(static_cast<uint8_t>(max_value_bit_length));
int compression_level = kDefaultSymbolCodingCompressionLevel;
if (options != nullptr &&
options->IsOptionSet("symbol_encoding_compression_level")) {
compression_level = options->GetInt("symbol_encoding_compression_level");
}
// Adjust the bit_length based on compression level. Lower compression levels
// will use fewer bits while higher compression levels use more bits. Note
// that this is going to work for all valid bit_lengths because the actual
// number of bits allocated for rANS encoding is hard coded as:
// std::max(12, 3 * bit_length / 2) , therefore there will be always a
// sufficient number of bits available for all symbols.
// See ComputeRAnsPrecisionFromUniqueSymbolsBitLength() for the formula.
// This hardcoded equation cannot be changed without changing the bitstream.
if (compression_level < 4) {
unique_symbols_bit_length -= 2;
} else if (compression_level < 6) {
unique_symbols_bit_length -= 1;
} else if (compression_level > 9) {
unique_symbols_bit_length += 2;
} else if (compression_level > 7) {
unique_symbols_bit_length += 1;
}
// Clamp the bit_length to a valid range.
unique_symbols_bit_length = std::min(std::max(1, unique_symbols_bit_length),
kMaxRawEncodingBitLength);
target_buffer->Encode(static_cast<uint8_t>(unique_symbols_bit_length));
// Use appropriate symbol encoder based on the maximum symbol bit length.
switch (max_value_bit_length) {
switch (unique_symbols_bit_length) {
case 0:
FALLTHROUGH_INTENDED;
case 1:

18
src/draco/core/symbol_encoding.h
View File

@ -15,7 +15,9 @@
#ifndef DRACO_CORE_SYMBOL_ENCODING_H_
#define DRACO_CORE_SYMBOL_ENCODING_H_
#include "draco/compression/config/compression_shared.h"
#include "draco/core/encoder_buffer.h"
#include "draco/core/options.h"
namespace draco {
@ -23,10 +25,22 @@ namespace draco {
// automatically decides whether to encode the symbol values using using bit
// length tags (see EncodeTaggedSymbols), or whether to encode them directly
// (see EncodeRawSymbols). The symbols can be grouped into separate components
// that can be used for better compression.
// that can be used for better compression. |options| is an optional parameter
// that allows more direct control over various stages of the symbol encoding
// (see below for functions that are used to set valid options).
// Returns false on error.
bool EncodeSymbols(const uint32_t *symbols, int num_values, int num_components,
EncoderBuffer *target_buffer);
const Options *options, EncoderBuffer *target_buffer);
// Sets an option that forces symbol encoder to use the specified encoding
// method.
void SetSymbolEncodingMethod(Options *options, SymbolCodingMethod method);
// Sets the desired compression level for symbol encoding in range <0, 10> where
// 0 is the worst but fastest compression and 10 is the best but slowest
// compression. If the option is not set, default value of 7 is used.
// Returns false if an invalid level has been set.
bool SetSymbolEncodingCompressionLevel(Options *options, int compression_level);
} // namespace draco

26
src/draco/javascript/emscripten/decoder_webidl_wrapper.cc
View File

@ -25,7 +25,12 @@ using draco::PointAttribute;
using draco::PointCloud;
using draco::Status;
MetadataQuerier::MetadataQuerier() {}
MetadataQuerier::MetadataQuerier() : entry_names_metadata_(nullptr) {}
bool MetadataQuerier::HasEntry(const Metadata &metadata,
const char *entry_name) const {
return metadata.entries().count(entry_name) > 0;
}
bool MetadataQuerier::HasIntEntry(const Metadata &metadata,
const char *entry_name) const {
@ -79,6 +84,25 @@ const char *MetadataQuerier::GetStringEntry(const Metadata &metadata,
return value;
}
long MetadataQuerier::NumEntries(const Metadata &metadata) const {
return metadata.num_entries();
}
const char *MetadataQuerier::GetEntryName(const Metadata &metadata,
int entry_id) {
if (entry_names_metadata_ != &metadata) {
entry_names_.clear();
entry_names_metadata_ = &metadata;
// Initialize the list of entry names.
for (auto &&entry : metadata.entries()) {
entry_names_.push_back(entry.first);
}
}
if (entry_id < 0 || entry_id >= entry_names_.size())
return nullptr;
return entry_names_[entry_id].c_str();
}
DracoFloat32Array::DracoFloat32Array() {}
float DracoFloat32Array::GetValue(int index) const { return values_[index]; }

9
src/draco/javascript/emscripten/decoder_webidl_wrapper.h
View File

@ -38,6 +38,7 @@ class MetadataQuerier {
public:
MetadataQuerier();
bool HasEntry(const draco::Metadata &metadata, const char *entry_name) const;
bool HasIntEntry(const draco::Metadata &metadata,
const char *entry_name) const;
long GetIntEntry(const draco::Metadata &metadata,
@ -50,6 +51,14 @@ class MetadataQuerier {
const char *entry_name) const;
const char *GetStringEntry(const draco::Metadata &metadata,
const char *entry_name) const;
long NumEntries(const draco::Metadata &metadata) const;
const char *GetEntryName(const draco::Metadata &metadata, int entry_id);
private:
// Cached values for metadata entries.
std::vector<std::string> entry_names_;
const draco::Metadata *entry_names_metadata_;
};
class DracoFloat32Array {

5
src/draco/javascript/emscripten/draco_web_decoder.idl
View File

@ -114,6 +114,8 @@ interface Status {
interface MetadataQuerier {
void MetadataQuerier();
boolean HasEntry([Ref, Const] Metadata metadata,
[Const] DOMString entry_name);
boolean HasIntEntry([Ref, Const] Metadata metadata,
[Const] DOMString entry_name);
long GetIntEntry([Ref, Const] Metadata metadata,
@ -126,6 +128,9 @@ interface MetadataQuerier {
[Const] DOMString entry_name);
[Const] DOMString GetStringEntry([Ref, Const] Metadata metadata,
[Const] DOMString entry_name);
long NumEntries([Ref, Const] Metadata metadata);
[Const] DOMString GetEntryName([Ref, Const] Metadata metadata, long entry_id);
};
// Draco version of typed arrays. The memory of these arrays is allocated on the

33
src/draco/mesh/corner_table.cc
View File

@ -35,6 +35,8 @@ std::unique_ptr<CornerTable> CornerTable::Create(
bool CornerTable::Initialize(
const IndexTypeVector<FaceIndex, FaceType> &faces) {
ClearValenceCache();
ClearValenceCacheInaccurate();
corner_to_vertex_map_.resize(faces.size() * 3);
for (FaceIndex fi(0); fi < faces.size(); ++fi) {
for (int i = 0; i < 3; ++i) {
@ -61,10 +63,14 @@ bool CornerTable::Reset(int num_faces, int num_vertices) {
corner_to_vertex_map_.assign(num_faces * 3, kInvalidVertexIndex);
opposite_corners_.assign(num_faces * 3, kInvalidCornerIndex);
vertex_corners_.reserve(num_vertices);
ClearValenceCache();
ClearValenceCacheInaccurate();
return true;
}
bool CornerTable::ComputeOppositeCorners(int *num_vertices) {
DCHECK_EQ(vertex_valence_cache_8_bit_.size(), 0);
DCHECK_EQ(vertex_valence_cache_32_bit_.size(), 0);
if (num_vertices == nullptr)
return false;
opposite_corners_.resize(num_corners(), kInvalidCornerIndex);
@ -95,9 +101,10 @@ bool CornerTable::ComputeOppositeCorners(int *num_vertices) {
// and the associated half-edge corner id (corner opposite to the half-edge).
// Each vertex will be assigned storage for up to
// |num_corners_on_vertices[vert_id]| half-edges. Unused half-edges are marked
// with |sink_vert| == -1.
// with |sink_vert| == kInvalidVertexIndex.
struct VertexEdgePair {
VertexEdgePair() : sink_vert(-1), edge_corner(-1) {}
VertexEdgePair()
: sink_vert(kInvalidVertexIndex), edge_corner(kInvalidCornerIndex) {}
VertexIndex sink_vert;
CornerIndex edge_corner;
};
@ -132,14 +139,14 @@ bool CornerTable::ComputeOppositeCorners(int *num_vertices) {
}
}
CornerIndex opposite_c(-1);
CornerIndex opposite_c(kInvalidCornerIndex);
// The maximum number of half-edges attached to the sink vertex.
const int num_corners_on_vert = num_corners_on_vertices[sink_v.value()];
// Where to look for the first half-edge on the sink vertex.
offset = vertex_offset[sink_v.value()];
for (int i = 0; i < num_corners_on_vert; ++i, ++offset) {
const VertexIndex other_v = vertex_edges[offset].sink_vert;
if (other_v < 0)
if (other_v == kInvalidVertexIndex)
break; // No matching half-edge found on the sink vertex.
if (other_v == source_v) {
// A matching half-edge was found on the sink vertex. Mark the
@ -152,22 +159,22 @@ bool CornerTable::ComputeOppositeCorners(int *num_vertices) {
// slot.
for (int j = i + 1; j < num_corners_on_vert; ++j, ++offset) {
vertex_edges[offset] = vertex_edges[offset + 1];
if (vertex_edges[offset].sink_vert < 0)
if (vertex_edges[offset].sink_vert == kInvalidVertexIndex)
break; // Unused half-edge reached.
}
// Mark the last entry as unused.
vertex_edges[offset].sink_vert = VertexIndex(-1);
vertex_edges[offset].sink_vert = kInvalidVertexIndex;
break;
}
}
if (opposite_c < 0) {
if (opposite_c == kInvalidCornerIndex) {
// No opposite corner found. Insert the new edge
const int num_corners_on_source_vert =
num_corners_on_vertices[source_v.value()];
offset = vertex_offset[source_v.value()];
for (int i = 0; i < num_corners_on_source_vert; ++i, ++offset) {
// Find the first unused half-edge slot on the source vertex.
if (vertex_edges[offset].sink_vert < 0) {
if (vertex_edges[offset].sink_vert == kInvalidVertexIndex) {
vertex_edges[offset].sink_vert = sink_v;
vertex_edges[offset].edge_corner = c;
break;
@ -184,6 +191,8 @@ bool CornerTable::ComputeOppositeCorners(int *num_vertices) {
}
bool CornerTable::ComputeVertexCorners(int num_vertices) {
DCHECK_EQ(vertex_valence_cache_8_bit_.size(), 0);
DCHECK_EQ(vertex_valence_cache_32_bit_.size(), 0);
num_original_vertices_ = num_vertices;
vertex_corners_.resize(num_vertices, kInvalidCornerIndex);
// Arrays for marking visited vertices and corners that allow us to detect
@ -275,6 +284,12 @@ bool CornerTable::IsDegenerated(FaceIndex face) const {
int CornerTable::Valence(VertexIndex v) const {
if (v == kInvalidVertexIndex)
return -1;
return ConfidentValence(v);
}
int CornerTable::ConfidentValence(VertexIndex v) const {
DCHECK_GE(v.value(), 0);
DCHECK_LT(v.value(), num_vertices());
VertexRingIterator vi(this, v);
int valence = 0;
for (; !vi.End(); vi.Next()) {
@ -284,6 +299,8 @@ int CornerTable::Valence(VertexIndex v) const {
}
void CornerTable::UpdateFaceToVertexMap(const VertexIndex vertex) {
DCHECK_EQ(vertex_valence_cache_8_bit_.size(), 0);
DCHECK_EQ(vertex_valence_cache_32_bit_.size(), 0);
VertexCornersIterator<CornerTable> it(this, vertex);
for (; !it.End(); ++it) {
const CornerIndex corner = *it;

166
src/draco/mesh/corner_table.h
View File

@ -20,6 +20,7 @@
#include "draco/attributes/geometry_indices.h"
#include "draco/core/draco_index_type_vector.h"
#include "draco/core/macros.h"
namespace draco {
@ -73,32 +74,37 @@ class CornerTable {
inline int num_faces() const { return corner_to_vertex_map_.size() / 3; }
inline CornerIndex Opposite(CornerIndex corner) const {
if (corner < 0)
if (corner == kInvalidCornerIndex)
return corner;
return opposite_corners_[corner];
}
inline CornerIndex Next(CornerIndex corner) const {
if (corner < 0)
if (corner == kInvalidCornerIndex)
return corner;
return LocalIndex(++corner) ? corner : corner - 3;
}
inline CornerIndex Previous(CornerIndex corner) const {
if (corner < 0)
if (corner == kInvalidCornerIndex)
return corner;
return LocalIndex(corner) ? corner - 1 : corner + 2;
}
inline VertexIndex Vertex(CornerIndex corner) const {
if (corner < 0)
if (corner == kInvalidCornerIndex)
return kInvalidVertexIndex;
return ConfidentVertex(corner);
}
inline VertexIndex ConfidentVertex(CornerIndex corner) const {
DCHECK_GE(corner.value(), 0);
DCHECK_LT(corner.value(), num_corners());
return corner_to_vertex_map_[corner];
}
inline FaceIndex Face(CornerIndex corner) const {
if (corner < 0)
if (corner == kInvalidCornerIndex)
return kInvalidFaceIndex;
return FaceIndex(corner.value() / 3);
}
inline CornerIndex FirstCorner(FaceIndex face) const {
if (face < 0)
if (face == kInvalidFaceIndex)
return kInvalidCornerIndex;
return CornerIndex(face.value() * 3);
}
@ -118,6 +124,8 @@ class CornerTable {
}
void SetFaceData(FaceIndex face, FaceType data) {
DCHECK_EQ(vertex_valence_cache_8_bit_.size(), 0);
DCHECK_EQ(vertex_valence_cache_32_bit_.size(), 0);
const CornerIndex first_corner = FirstCorner(face);
for (int i = 0; i < 3; ++i) {
corner_to_vertex_map_[first_corner + i] = data[i];
@ -146,18 +154,70 @@ class CornerTable {
// Returns the valence (or degree) of a vertex.
// Returns -1 if the given vertex index is not valid.
int Valence(VertexIndex v) const;
// Same as above but does not check for validity and does not return -1
int ConfidentValence(VertexIndex v) const;
// Same as above, do not call before CacheValences() /
// CacheValencesInaccurate().
inline int8_t ValenceFromCacheInaccurate(VertexIndex v) const {
DCHECK_EQ(vertex_valence_cache_8_bit_.size(), num_vertices());
if (v == kInvalidVertexIndex || v.value() >= num_vertices())
return -1;
return ConfidentValenceFromCacheInaccurate(v);
}
inline int8_t ConfidentValenceFromCacheInaccurate(VertexIndex v) const {
DCHECK_LT(v.value(), num_vertices());
DCHECK_EQ(vertex_valence_cache_8_bit_.size(), num_vertices());
return vertex_valence_cache_8_bit_[v];
}
// TODO(scottgodfrey) Add unit tests for ValenceCache functions.
inline int32_t ValenceFromCache(VertexIndex v) const {
DCHECK_EQ(vertex_valence_cache_32_bit_.size(), num_vertices());
if (v == kInvalidVertexIndex || v.value() >= num_vertices())
return -1;
return ConfidentValenceFromCache(v);
}
inline int32_t ConfidentValenceFromCache(VertexIndex v) const {
DCHECK_LT(v.value(), num_vertices());
DCHECK_EQ(vertex_valence_cache_32_bit_.size(), num_vertices());
return vertex_valence_cache_32_bit_[v];
}
// Returns the valence of the vertex at the given corner.
inline int Valence(CornerIndex c) const {
if (c == kInvalidCornerIndex)
return -1;
return Valence(Vertex(c));
return ConfidentValence(c);
}
inline int ConfidentValence(CornerIndex c) const {
DCHECK_LT(c.value(), num_corners());
return ConfidentValence(ConfidentVertex(c));
}
// Do not call before CacheValences() / CacheValencesInaccurate().
inline int8_t ValenceFromCacheInaccurate(CornerIndex c) const {
if (c == kInvalidCornerIndex)
return -1;
return ValenceFromCacheInaccurate(Vertex(c));
}
inline int32_t ValenceFromCache(CornerIndex c) const {
if (c == kInvalidCornerIndex)
return -1;
return ValenceFromCache(Vertex(c));
}
inline int8_t ConfidentValenceFromCacheInaccurate(CornerIndex c) const {
DCHECK_GE(c.value(), 0);
DCHECK_LT(c.value(), num_corners());
return ConfidentValenceFromCacheInaccurate(ConfidentVertex(c));
}
inline int32_t ConfidentValenceFromCache(CornerIndex c) const {
DCHECK_GE(c.value(), 0);
DCHECK_LT(c.value(), num_corners());
return ConfidentValenceFromCache(ConfidentVertex(c));
}
// Returns true if the specified vertex is on a boundary.
inline bool IsOnBoundary(VertexIndex vert) const {
const CornerIndex corner = LeftMostCorner(vert);
if (SwingLeft(corner) < 0)
if (SwingLeft(corner) == kInvalidCornerIndex)
return true;
return false;
}
@ -186,13 +246,13 @@ class CornerTable {
// \ / \ /
// \ / \ /
// *-------*
CornerIndex GetLeftCorner(CornerIndex corner_id) const {
if (corner_id < 0)
inline CornerIndex GetLeftCorner(CornerIndex corner_id) const {
if (corner_id == kInvalidCornerIndex)
return kInvalidCornerIndex;
return Opposite(Previous(corner_id));
}
CornerIndex GetRightCorner(CornerIndex corner_id) const {
if (corner_id < 0)
inline CornerIndex GetRightCorner(CornerIndex corner_id) const {
if (corner_id == kInvalidCornerIndex)
return kInvalidCornerIndex;
return Opposite(Next(corner_id));
}
@ -216,11 +276,15 @@ class CornerTable {
// that the indices are valid.
inline void SetOppositeCorner(CornerIndex corner_id,
CornerIndex opp_corner_id) {
DCHECK_EQ(vertex_valence_cache_8_bit_.size(), 0);
DCHECK_EQ(vertex_valence_cache_32_bit_.size(), 0);
opposite_corners_[corner_id] = opp_corner_id;
}
// Sets opposite corners for both input corners.
inline void SetOppositeCorners(CornerIndex corner_0, CornerIndex corner_1) {
DCHECK_EQ(vertex_valence_cache_8_bit_.size(), 0);
DCHECK_EQ(vertex_valence_cache_32_bit_.size(), 0);
if (corner_0 != kInvalidCornerIndex)
SetOppositeCorner(corner_0, corner_1);
if (corner_1 != kInvalidCornerIndex)
@ -229,10 +293,14 @@ class CornerTable {
// Updates mapping between a corner and a vertex.
inline void MapCornerToVertex(CornerIndex corner_id, VertexIndex vert_id) {
DCHECK_EQ(vertex_valence_cache_8_bit_.size(), 0);
DCHECK_EQ(vertex_valence_cache_32_bit_.size(), 0);
corner_to_vertex_map_[corner_id] = vert_id;
}
VertexIndex AddNewVertex() {
DCHECK_EQ(vertex_valence_cache_8_bit_.size(), 0);
DCHECK_EQ(vertex_valence_cache_32_bit_.size(), 0);
// Add a new invalid vertex.
vertex_corners_.push_back(kInvalidCornerIndex);
return VertexIndex(vertex_corners_.size() - 1);
@ -240,6 +308,8 @@ class CornerTable {
// Sets a new left most corner for a given vertex.
void SetLeftMostCorner(VertexIndex vert, CornerIndex corner) {
DCHECK_EQ(vertex_valence_cache_8_bit_.size(), 0);
DCHECK_EQ(vertex_valence_cache_32_bit_.size(), 0);
if (vert != kInvalidVertexIndex)
vertex_corners_[vert] = corner;
}
@ -248,12 +318,14 @@ class CornerTable {
// called in cases where the mapping may be invalid (e.g. when the corner
// table was constructed manually).
void UpdateVertexToCornerMap(VertexIndex vert) {
DCHECK_EQ(vertex_valence_cache_8_bit_.size(), 0);
DCHECK_EQ(vertex_valence_cache_32_bit_.size(), 0);
const CornerIndex first_c = vertex_corners_[vert];
if (first_c < 0)
if (first_c == kInvalidCornerIndex)
return; // Isolated vertex.
CornerIndex act_c = SwingLeft(first_c);
CornerIndex c = first_c;
while (act_c >= 0 && act_c != first_c) {
while (act_c != kInvalidCornerIndex && act_c != first_c) {
c = act_c;
act_c = SwingLeft(act_c);
}
@ -266,21 +338,27 @@ class CornerTable {
// ensure that no corner is mapped beyond the range of the new number of
// vertices.
inline void SetNumVertices(int num_vertices) {
DCHECK_EQ(vertex_valence_cache_8_bit_.size(), 0);
DCHECK_EQ(vertex_valence_cache_32_bit_.size(), 0);
vertex_corners_.resize(num_vertices, kInvalidCornerIndex);
}
// Makes a vertex isolated (not attached to any corner).
void MakeVertexIsolated(VertexIndex vert) {
DCHECK_EQ(vertex_valence_cache_8_bit_.size(), 0);
DCHECK_EQ(vertex_valence_cache_32_bit_.size(), 0);
vertex_corners_[vert] = kInvalidCornerIndex;
}
// Returns true if a vertex is not attached to any face.
inline bool IsVertexIsolated(VertexIndex v) const {
return LeftMostCorner(v) < 0;
return LeftMostCorner(v) == kInvalidCornerIndex;
}
// Makes a given face invalid (all corners are marked as invalid).
void MakeFaceInvalid(FaceIndex face) {
DCHECK_EQ(vertex_valence_cache_8_bit_.size(), 0);
DCHECK_EQ(vertex_valence_cache_32_bit_.size(), 0);
if (face != kInvalidFaceIndex) {
const CornerIndex first_corner = FirstCorner(face);
for (int i = 0; i < 3; ++i) {
@ -293,6 +371,46 @@ class CornerTable {
// the provided vertex.
void UpdateFaceToVertexMap(const VertexIndex vertex);
// Collect the valence for all vertices so they can be reused later. The
// 'inaccurate' versions of this family of functions clips the true valence
// of the vertices to 8 signed bits as a space optimization. This clipping
// will lead to occasionally wrong results. If accurate results are required
// under all circumstances, do not use the 'inaccurate' version or else
// use it and fetch the correct result in the event the value appears clipped.
// The topology of the mesh should be a constant when Valence Cache functions
// are being used. Modification of the mesh while cache(s) are filled will
// not guarantee proper results on subsequent calls unless they are rebuilt.
void CacheValencesInaccurate() const {
if (vertex_valence_cache_8_bit_.size() == 0) {
const VertexIndex vertex_count = VertexIndex(num_vertices());
vertex_valence_cache_8_bit_.resize(vertex_count.value());
for (VertexIndex v = VertexIndex(0); v < vertex_count; v += 1)
vertex_valence_cache_8_bit_[v] = static_cast<int8_t>(
(std::min)(static_cast<int32_t>(std::numeric_limits<int8_t>::max()),
Valence(v)));
}
}
void CacheValences() const {
if (vertex_valence_cache_32_bit_.size() == 0) {
const VertexIndex vertex_count = VertexIndex(num_vertices());
vertex_valence_cache_32_bit_.resize(vertex_count.value());
for (VertexIndex v = VertexIndex(0); v < vertex_count; v += 1)
vertex_valence_cache_32_bit_[v] = Valence(v);
}
}
// Clear the cache of valences and deallocate the memory.
void ClearValenceCacheInaccurate() const {
vertex_valence_cache_8_bit_.clear();
// Force erasure.
IndexTypeVector<VertexIndex, int8_t>().swap(vertex_valence_cache_8_bit_);
}
void ClearValenceCache() const {
vertex_valence_cache_32_bit_.clear();
// Force erasure.
IndexTypeVector<VertexIndex, int32_t>().swap(vertex_valence_cache_32_bit_);
}
private:
// Computes opposite corners mapping from the data stored in
// |corner_to_vertex_map_|. Any non-manifold edge will be split so the result
@ -313,6 +431,10 @@ class CornerTable {
int num_degenerated_faces_;
int num_isolated_vertices_;
IndexTypeVector<VertexIndex, VertexIndex> non_manifold_vertex_parents_;
// Retain valences and clip them to char size.
mutable IndexTypeVector<VertexIndex, int8_t> vertex_valence_cache_8_bit_;
mutable IndexTypeVector<VertexIndex, int32_t> vertex_valence_cache_32_bit_;
};
// TODO(ostava): All these iterators will be moved into a new file in a separate
@ -344,13 +466,13 @@ class VertexRingIterator
}
// Returns true when all ring vertices have been visited.
bool End() const { return corner_ < 0; }
bool End() const { return corner_ == kInvalidCornerIndex; }
// Proceeds to the next ring vertex if possible.
void Next() {
if (left_traversal_) {
corner_ = corner_table_->SwingLeft(corner_);
if (corner_ < 0) {
if (corner_ == kInvalidCornerIndex) {
// Open boundary reached.
corner_ = start_corner_;
left_traversal_ = false;
@ -417,7 +539,7 @@ class FaceAdjacencyIterator
corner_(start_corner_) {
// We need to start with a corner that has a valid opposite face (if
// there is any such corner).
if (corner_table_->Opposite(corner_) < 0)
if (corner_table_->Opposite(corner_) == kInvalidCornerIndex)
FindNextFaceNeighbor();
}
@ -427,7 +549,7 @@ class FaceAdjacencyIterator
}
// Returns true when all adjacent faces have been visited.
bool End() const { return corner_ < 0; }
bool End() const { return corner_ == kInvalidCornerIndex; }
// Proceeds to the next adjacent face if possible.
void Next() { FindNextFaceNeighbor(); }
@ -460,13 +582,13 @@ class FaceAdjacencyIterator
private:
// Finds the next corner with a valid opposite face.
void FindNextFaceNeighbor() {
while (corner_ >= 0) {
while (corner_ != kInvalidCornerIndex) {
corner_ = corner_table_->Next(corner_);
if (corner_ == start_corner_) {
corner_ = kInvalidCornerIndex;
return;
}
if (corner_table_->Opposite(corner_) >= 0) {
if (corner_table_->Opposite(corner_) != kInvalidCornerIndex) {
// Valid opposite face.
return;
}

4
src/draco/mesh/corner_table_iterators.h
View File

@ -51,13 +51,13 @@ class VertexCornersIterator
CornerIndex Corner() const { return corner_; }
// Returns true when all ring vertices have been visited.
bool End() const { return corner_ < 0; }
bool End() const { return corner_ == kInvalidCornerIndex; }
// Proceeds to the next corner if possible.
void Next() {
if (left_traversal_) {
corner_ = corner_table_->SwingLeft(corner_);
if (corner_ < 0) {
if (corner_ == kInvalidCornerIndex) {
// Open boundary reached.
corner_ = corner_table_->SwingRight(start_corner_);
left_traversal_ = false;

4
src/draco/mesh/corner_table_traversal_processor.h
View File

@ -40,14 +40,14 @@ class CornerTableTraversalProcessor {
const CornerTable &GetCornerTable() const { return *corner_table_; }
inline bool IsFaceVisited(FaceIndex face_id) const {
if (face_id < 0)
if (face_id == kInvalidFaceIndex)
return true; // Invalid faces are always considered as visited.
return is_face_visited_[face_id.value()];
}
// Returns true if the face containing the given corner was visited.
inline bool IsFaceVisited(CornerIndex corner_id) const {
if (corner_id < 0)
if (corner_id == kInvalidCornerIndex)
return true; // Invalid faces are always considered as visited.
return is_face_visited_[corner_id.value() / 3];
}

15
src/draco/mesh/edgebreaker_traverser.h
View File

@ -136,13 +136,13 @@ class EdgeBreakerTraverser {
corner_id = corner_traversal_stack_.back();
FaceIndex face_id(corner_id.value() / 3);
// Make sure the face hasn't been visited yet.
if (corner_id < 0 || processor_.IsFaceVisited(face_id)) {
if (corner_id == kInvalidCornerIndex ||
processor_.IsFaceVisited(face_id)) {
// This face has been already traversed.
corner_traversal_stack_.pop_back();
continue;
}
while (true) {
face_id = FaceIndex(corner_id.value() / 3);
processor_.MarkFaceVisited(face_id);
traversal_observer_.OnNewFaceVisited(face_id);
const VertexIndex vert_id = corner_table_->Vertex(corner_id);
@ -153,6 +153,7 @@ class EdgeBreakerTraverser {
if (!on_boundary) {
edgebreaker_observer_.OnSymbolC();
corner_id = corner_table_->GetRightCorner(corner_id);
face_id = FaceIndex(corner_id.value() / 3);
continue;
}
}
@ -164,9 +165,13 @@ class EdgeBreakerTraverser {
const CornerIndex left_corner_id =
corner_table_->GetLeftCorner(corner_id);
const FaceIndex right_face_id(
(right_corner_id < 0 ? -1 : right_corner_id.value() / 3));
(right_corner_id == kInvalidCornerIndex
? kInvalidFaceIndex
: FaceIndex(right_corner_id.value() / 3)));
const FaceIndex left_face_id(
(left_corner_id < 0 ? -1 : left_corner_id.value() / 3));
(left_corner_id == kInvalidCornerIndex
? kInvalidFaceIndex
: FaceIndex(left_corner_id.value() / 3)));
if (processor_.IsFaceVisited(right_face_id)) {
// Right face has been already visited.
if (processor_.IsFaceVisited(left_face_id)) {
@ -178,6 +183,7 @@ class EdgeBreakerTraverser {
edgebreaker_observer_.OnSymbolR();
// Go to the left face.
corner_id = left_corner_id;
face_id = left_face_id;
}
} else {
// Right face was not visited.
@ -185,6 +191,7 @@ class EdgeBreakerTraverser {
edgebreaker_observer_.OnSymbolL();
// Left face visited, go to the right one.
corner_id = right_corner_id;
face_id = right_face_id;
} else {
edgebreaker_observer_.OnSymbolS();
// Both neighboring faces are unvisited, we need to visit both of

24
src/draco/mesh/mesh_attribute_corner_table.cc
View File

@ -43,19 +43,19 @@ bool MeshAttributeCornerTable::InitFromAttribute(const Mesh *mesh,
// Find all necessary data for encoding attributes. For now we check which of
// the mesh vertices is part of an attribute seam, because seams require
// special handling.
for (int c = 0; c < corner_table_->num_corners(); ++c) {
const FaceIndex f = corner_table_->Face(CornerIndex(c));
for (CornerIndex c(0); c < corner_table_->num_corners(); ++c) {
const FaceIndex f = corner_table_->Face(c);
if (corner_table_->IsDegenerated(f))
continue; // Ignore corners on degenerated faces.
const CornerIndex opp_corner = corner_table_->Opposite(CornerIndex(c));
if (opp_corner < 0) {
const CornerIndex opp_corner = corner_table_->Opposite(c);
if (opp_corner == kInvalidCornerIndex) {
// Boundary. Mark it as seam edge.
is_edge_on_seam_[c] = true;
is_edge_on_seam_[c.value()] = true;
// Mark seam vertices.
VertexIndex v;
v = corner_table_->Vertex(corner_table_->Next(CornerIndex(c)));
v = corner_table_->Vertex(corner_table_->Next(c));
is_vertex_on_seam_[v.value()] = true;
v = corner_table_->Vertex(corner_table_->Previous(CornerIndex(c)));
v = corner_table_->Vertex(corner_table_->Previous(c));
is_vertex_on_seam_[v.value()] = true;
continue;
}
@ -73,7 +73,7 @@ bool MeshAttributeCornerTable::InitFromAttribute(const Mesh *mesh,
mesh->CornerToPointId(act_sibling_c.value());
if (att->mapped_index(point_id) != att->mapped_index(sibling_point_id)) {
no_interior_seams_ = false;
is_edge_on_seam_[c] = true;
is_edge_on_seam_[c.value()] = true;
is_edge_on_seam_[opp_corner.value()] = true;
// Mark seam vertices.
is_vertex_on_seam_[corner_table_
@ -105,7 +105,7 @@ void MeshAttributeCornerTable::AddSeamEdge(CornerIndex c) {
.value()] = true;
const CornerIndex opp_corner = corner_table_->Opposite(c);
if (opp_corner >= 0) {
if (opp_corner != kInvalidCornerIndex) {
no_interior_seams_ = false;
is_edge_on_seam_[opp_corner.value()] = true;
is_vertex_on_seam_[corner_table_->Vertex(corner_table_->Next(opp_corner))
@ -131,7 +131,7 @@ void MeshAttributeCornerTable::RecomputeVerticesInternal(
int num_new_vertices = 0;
for (VertexIndex v(0); v < corner_table_->num_vertices(); ++v) {
const CornerIndex c = corner_table_->LeftMostCorner(v);
if (c < 0)
if (c == kInvalidCornerIndex)
continue; // Isolated vertex?
AttributeValueIndex first_vert_id(num_new_vertices++);
if (init_vertex_to_attribute_entry_map) {
@ -149,7 +149,7 @@ void MeshAttributeCornerTable::RecomputeVerticesInternal(
// Try to swing left on the modified corner table. We need to get the
// first corner that defines an attribute seam.
act_c = SwingLeft(first_c);
while (act_c >= 0) {
while (act_c != kInvalidCornerIndex) {
first_c = act_c;
act_c = SwingLeft(act_c);
}
@ -157,7 +157,7 @@ void MeshAttributeCornerTable::RecomputeVerticesInternal(
corner_to_vertex_map_[first_c.value()] = VertexIndex(first_vert_id.value());
vertex_to_left_most_corner_map_.push_back(first_c);
act_c = corner_table_->SwingRight(first_c);
while (act_c >= 0 && act_c != first_c) {
while (act_c != kInvalidCornerIndex && act_c != first_c) {
if (IsCornerOppositeToSeamEdge(corner_table_->Next(act_c))) {
first_vert_id = AttributeValueIndex(num_new_vertices++);
if (init_vertex_to_attribute_entry_map) {

2
src/draco/mesh/mesh_attribute_corner_table.h
View File

@ -100,7 +100,7 @@ class MeshAttributeCornerTable {
inline bool IsOnBoundary(VertexIndex vert) const {
const CornerIndex corner = LeftMostCorner(vert);
if (corner < 0)
if (corner == kInvalidCornerIndex)
return true;
return IsCornerOnSeam(corner);
}

6
src/draco/mesh/mesh_cleanup.cc
View File

@ -75,7 +75,7 @@ bool MeshCleanup::operator()(Mesh *mesh, const MeshCleanupOptions &options) {
if (is_point_used[i.value()]) {
point_map[i] = num_new_points++;
} else {
point_map[i] = -1;
point_map[i] = kInvalidPointIndex;
}
}
// Go over faces and update their points.
@ -107,7 +107,7 @@ bool MeshCleanup::operator()(Mesh *mesh, const MeshCleanupOptions &options) {
att_index_map.clear();
AttributeValueIndex::ValueType num_used_entries = 0;
for (PointIndex i(0); i < num_original_points; ++i) {
if (point_map[i] != -1) {
if (point_map[i] != kInvalidPointIndex) {
const AttributeValueIndex entry_id = att->mapped_index(i);
if (!is_att_index_used[entry_id]) {
is_att_index_used[entry_id] = 1;
@ -160,7 +160,7 @@ bool MeshCleanup::operator()(Mesh *mesh, const MeshCleanupOptions &options) {
// The new point id that maps to the currently processed attribute
// entry.
const PointIndex new_point_id = point_map[i];
if (new_point_id < 0)
if (new_point_id == kInvalidPointIndex)
continue;
// Index of the currently processed attribute entry in the original
// mesh.

2
src/draco/mesh/mesh_misc_functions.h
View File

@ -40,7 +40,7 @@ inline bool IsCornerOppositeToAttributeSeam(CornerIndex ci,
const Mesh &mesh,
const CornerTable &ct) {
const CornerIndex opp_ci = ct.Opposite(ci);
if (opp_ci < 0)
if (opp_ci == kInvalidCornerIndex)
return false; // No opposite corner == no attribute seam.
// Compare attribute value indices on both ends of the opposite edge.
CornerIndex c0 = ct.Next(ci);

7
src/draco/mesh/mesh_stripifier.cc
View File

@ -40,12 +40,13 @@ void MeshStripifier::GenerateStripsFromCroner(int local_strip_id,
//
// Perform the backward pass only when there is no attribute seam between
// the initial face and the first face of the backward traversal.
if (GetOppositeCorner(corner_table_->Previous(start_ci)) < 0)
if (GetOppositeCorner(corner_table_->Previous(start_ci)) ==
kInvalidCornerIndex)
break; // Attribute seam or a boundary.
ci = corner_table_->Next(start_ci);
ci = corner_table_->SwingLeft(ci);
if (ci < 0)
if (ci == kInvalidCornerIndex)
break;
fi = corner_table_->Face(ci);
@ -73,7 +74,7 @@ void MeshStripifier::GenerateStripsFromCroner(int local_strip_id,
}
}
ci = GetOppositeCorner(ci);
if (ci < 0)
if (ci == kInvalidCornerIndex)
break;
fi = corner_table_->Face(ci);
}

10
src/draco/mesh/prediction_degree_traverser.h
View File

@ -100,7 +100,7 @@ class PredictionDegreeTraverser {
traversal_observer_.OnNewVertexVisited(tip_vertex, corner_id);
}
// Start the actual traversal.
while ((corner_id = PopNextCornerToTraverse()) >= 0) {
while ((corner_id = PopNextCornerToTraverse()) != kInvalidCornerIndex) {
FaceIndex face_id(corner_id.value() / 3);
// Make sure the face hasn't been visited yet.
if (processor_.IsFaceVisited(face_id)) {
@ -128,9 +128,13 @@ class PredictionDegreeTraverser {
const CornerIndex left_corner_id =
corner_table_->GetLeftCorner(corner_id);
const FaceIndex right_face_id(
(right_corner_id < 0 ? -1 : right_corner_id.value() / 3));
(right_corner_id == kInvalidCornerIndex
? kInvalidFaceIndex
: FaceIndex(right_corner_id.value() / 3)));
const FaceIndex left_face_id(
(left_corner_id < 0 ? -1 : left_corner_id.value() / 3));
(left_corner_id == kInvalidCornerIndex
? kInvalidFaceIndex
: FaceIndex(left_corner_id.value() / 3)));
const bool is_right_face_visited =
processor_.IsFaceVisited(right_face_id);
const bool is_left_face_visited =

2
src/draco/metadata/metadata_decoder.cc
View File

@ -94,6 +94,8 @@ bool MetadataDecoder::DecodeName(std::string *name) {
if (!buffer_->Decode(&name_len))
return false;
name->resize(name_len);
if (name_len == 0)
return true;
if (!buffer_->Decode(&name->at(0), name_len))
return false;
return true;

81
src/draco/unity/draco_unity_plugin.cc
View File

@ -18,6 +18,37 @@
namespace draco {
void ReleaseUnityMesh(DracoToUnityMesh **mesh_ptr) {
DracoToUnityMesh *mesh = *mesh_ptr;
if (!mesh)
return;
if (mesh->indices) {
delete[] mesh->indices;
mesh->indices = nullptr;
}
if (mesh->position) {
delete[] mesh->position;
mesh->position = nullptr;
}
if (mesh->has_normal && mesh->normal) {
delete[] mesh->normal;
mesh->has_normal = false;
mesh->normal = nullptr;
}
if (mesh->has_texcoord && mesh->texcoord) {
delete[] mesh->texcoord;
mesh->has_texcoord = false;
mesh->texcoord = nullptr;
}
if (mesh->has_color && mesh->color) {
delete[] mesh->color;
mesh->has_color = false;
mesh->color = nullptr;
}
delete mesh;
*mesh_ptr = nullptr;
}
int DecodeMeshForUnity(char *data, unsigned int length,
DracoToUnityMesh **tmp_mesh) {
draco::DecoderBuffer buffer;
@ -59,12 +90,56 @@ int DecodeMeshForUnity(char *data, unsigned int length,
const draco::AttributeValueIndex val_index = pos_att->mapped_index(i);
if (!pos_att->ConvertValue<float, 3>(
val_index, unity_mesh->position + i.value() * 3)) {
delete[] unity_mesh->indices;
delete[] unity_mesh->position;
delete unity_mesh;
ReleaseUnityMesh(&unity_mesh);
return -8;
}
}
// Get normal attributes.
const auto normal_att =
in_mesh->GetNamedAttribute(draco::GeometryAttribute::NORMAL);
if (normal_att != nullptr) {
unity_mesh->normal = new float[in_mesh->num_points() * 3];
unity_mesh->has_normal = true;
for (draco::PointIndex i(0); i < in_mesh->num_points(); ++i) {
const draco::AttributeValueIndex val_index = normal_att->mapped_index(i);
if (!normal_att->ConvertValue<float, 3>(
val_index, unity_mesh->normal + i.value() * 3)) {
ReleaseUnityMesh(&unity_mesh);
return -8;
}
}
}
// Get color attributes.
const auto color_att =
in_mesh->GetNamedAttribute(draco::GeometryAttribute::COLOR);
if (color_att != nullptr) {
unity_mesh->color = new float[in_mesh->num_points() * 3];
unity_mesh->has_color = true;
for (draco::PointIndex i(0); i < in_mesh->num_points(); ++i) {
const draco::AttributeValueIndex val_index = color_att->mapped_index(i);
if (!color_att->ConvertValue<float, 3>(
val_index, unity_mesh->color + i.value() * 3)) {
ReleaseUnityMesh(&unity_mesh);
return -8;
}
}
}
// Get texture coordinates attributes.
const auto texcoord_att =
in_mesh->GetNamedAttribute(draco::GeometryAttribute::TEX_COORD);
if (texcoord_att != nullptr) {
unity_mesh->texcoord = new float[in_mesh->num_points() * 2];
unity_mesh->has_texcoord = true;
for (draco::PointIndex i(0); i < in_mesh->num_points(); ++i) {
const draco::AttributeValueIndex val_index =
texcoord_att->mapped_index(i);
if (!texcoord_att->ConvertValue<float, 3>(
val_index, unity_mesh->texcoord + i.value() * 3)) {
ReleaseUnityMesh(&unity_mesh);
return -8;
}
}
}
return in_mesh->num_faces();
}

9
src/draco/unity/draco_unity_plugin.h
View File

@ -37,20 +37,27 @@ struct EXPORT_API DracoToUnityMesh {
indices(nullptr),
num_vertices(0),
position(nullptr),
has_normal(false),
normal(nullptr),
has_texcoord(false),
texcoord(nullptr),
has_color(false),
color(nullptr) {}
int num_faces;
int *indices;
int num_vertices;
float *position;
bool has_normal;
float *normal;
bool has_texcoord;
float *texcoord;
bool has_color;
float *color;
};
void ReleaseUnityMesh(DracoToUnityMesh **mesh_ptr);
/* To use this function, you do not allocate memory for |tmp_mesh|, just
* define and pass a null pointer. Otherwise there will be memory leak.
*/

22
src/draco/unity/draco_unity_plugin_test.cc
View File

@ -52,24 +52,11 @@ class DracoUnityPluginTest : public ::testing::Test {
ASSERT_EQ(num_faces, expected_num_faces);
ASSERT_EQ(unity_mesh_->num_faces, expected_num_faces);
ASSERT_EQ(unity_mesh_->num_vertices, expected_num_vertices);
ASSERT_TRUE(unity_mesh_->has_normal);
ASSERT_NE(unity_mesh_->normal, nullptr);
// TODO(fgalligan): Also test color and tex_coord attributes.
DestroyUnityMesh();
}
// TODO(zhafang): Consider move to draco_unity_plugin.h.
void DestroyUnityMesh() {
if (unity_mesh_ != nullptr) {
if (unity_mesh_->indices != nullptr) {
delete[] unity_mesh_->indices;
unity_mesh_->indices = nullptr;
}
if (unity_mesh_->position != nullptr) {
delete[] unity_mesh_->position;
unity_mesh_->position = nullptr;
}
}
delete unity_mesh_;
unity_mesh_ = nullptr;
draco::ReleaseUnityMesh(&unity_mesh_);
}
draco::DracoToUnityMesh *unity_mesh_;
@ -78,5 +65,4 @@ class DracoUnityPluginTest : public ::testing::Test {
TEST_F(DracoUnityPluginTest, TestDecodingToDracoUnityMesh) {
TestDecodingToDracoUnityMesh("test_nm.obj.edgebreaker.1.0.0.drc", 170, 99);
}
} // namespace

273
unity/DracoMeshLoader.cs
View File

@ -18,143 +18,185 @@ using System.Collections.Generic;
using System.Runtime.InteropServices;
using UnityEngine;
public unsafe class DracoMeshLoader {
public unsafe class DracoMeshLoader
{
// Must stay the order to be consistent with C++ interface.
[StructLayout(LayoutKind.Sequential)] private struct DracoToUnityMesh {
[StructLayout (LayoutKind.Sequential)] private struct DracoToUnityMesh
{
public int numFaces;
public IntPtr indices;
public int numVertices;
public IntPtr position;
// TODO(zhafang): Add other attributes.
// public int numNormal;
public float[] normal;
// public int numColor;
public float[] color;
public float[] texcoord;
public bool hasNormal;
public IntPtr normal;
public bool hasTexcoord;
public IntPtr texcoord;
public bool hasColor;
public IntPtr color;
}
private struct DecodedMesh {
private struct DecodedMesh
{
public int[] faces;
public Vector3[] vertices;
public Vector3[] normals;
public Vector2[] uvs;
public Vector3[] colors;
}
[DllImport("dracodec_unity")] private static extern int DecodeMeshForUnity(
byte[] buffer, int length, DracoToUnityMesh **tmpMesh);
[DllImport ("dracodec_unity")] private static extern int DecodeMeshForUnity (
byte[] buffer, int length, DracoToUnityMesh**tmpMesh);
static private int maxNumVerticesPerMesh = 60000;
// Unity only support maximum 65534 vertices per mesh. So large meshes need
// to be splitted.
private void SplitMesh(DecodedMesh mesh, ref List<DecodedMesh> splittedMeshes) {
List<int> facesLeft = new List<int>();
private void SplitMesh (DecodedMesh mesh, ref List<DecodedMesh> splittedMeshes)
{
List<int> facesLeft = new List<int> ();
for (int i = 0; i < mesh.faces.Length; ++i) {
facesLeft.Add(mesh.faces[i]);
facesLeft.Add (mesh.faces [i]);
}
int numSubMeshes = 0;
List<int> newCorners = new List<int>();
Dictionary<int, int> indexToNewIndex = new Dictionary<int, int>();
List<int> tmpLeftFaces = new List<int>();
List<int> facesExtracted = new List<int>();
List<Vector3> verticesExtracted = new List<Vector3>();
List<int> newCorners = new List<int> ();
Dictionary<int, int> indexToNewIndex = new Dictionary<int, int> ();
List<int> facesExtracted = new List<int> ();
List<Vector3> verticesExtracted = new List<Vector3> ();
List<Vector2> uvsExtracted = new List<Vector2> ();
List<Vector3> normalsExtracted = new List<Vector3> ();
List<Vector3> colorsExtracted = new List<Vector3> ();
while (facesLeft.Count > 0) {
Debug.Log("Faces left: " + facesLeft.Count.ToString());
numSubMeshes++;
tmpLeftFaces.Clear();
facesExtracted.Clear();
verticesExtracted.Clear();
List<int> tmpLeftFaces = new List<int> ();
facesExtracted.Clear ();
verticesExtracted.Clear ();
uvsExtracted.Clear ();
normalsExtracted.Clear ();
colorsExtracted.Clear ();
int uniqueCornerId = 0;
indexToNewIndex.Clear();
indexToNewIndex.Clear ();
for (int face = 0; face < facesLeft.Count / 3; ++face) {
newCorners.Clear();
newCorners.Clear ();
// If all indices has appeared or there's still space for more vertices.
for (int corner = 0; corner < 3; ++corner) {
if (!indexToNewIndex.ContainsKey(facesLeft[face * 3 + corner])) {
newCorners.Add(facesLeft[face * 3 + corner]);
if (!indexToNewIndex.ContainsKey (facesLeft [face * 3 + corner])) {
newCorners.Add (facesLeft [face * 3 + corner]);
}
}
if (newCorners.Count + uniqueCornerId > maxNumVerticesPerMesh) {
// Save face for the next sub-mesh.
for (int corner = 0; corner < 3; ++corner) {
tmpLeftFaces.Add(facesLeft[face * 3 + corner]);
tmpLeftFaces.Add (facesLeft [face * 3 + corner]);
}
} else {
// Add new corners.
for (int i = 0; i < newCorners.Count; ++i) {
indexToNewIndex.Add(newCorners[i], uniqueCornerId);
verticesExtracted.Add(mesh.vertices[newCorners[i]]);
indexToNewIndex.Add (newCorners [i], uniqueCornerId);
verticesExtracted.Add (mesh.vertices [newCorners [i]]);
if (mesh.normals != null)
normalsExtracted.Add (mesh.normals [newCorners [i]]);
if (mesh.colors != null)
colorsExtracted.Add (mesh.colors [newCorners [i]]);
if (mesh.uvs != null)
uvsExtracted.Add (mesh.uvs [newCorners [i]]);
uniqueCornerId++;
}
// Add face to this sub-mesh.
for (int corner = 0; corner < 3; ++corner) {
facesExtracted.Add(
indexToNewIndex[facesLeft[face * 3 + corner]]);
facesExtracted.Add (
indexToNewIndex [facesLeft [face * 3 + corner]]);
}
}
}
DecodedMesh subMesh = new DecodedMesh();
subMesh.faces = facesExtracted.ToArray();
subMesh.vertices = verticesExtracted.ToArray();
splittedMeshes.Add(subMesh);
DecodedMesh subMesh = new DecodedMesh ();
subMesh.faces = facesExtracted.ToArray ();
subMesh.vertices = verticesExtracted.ToArray ();
if (normalsExtracted.Count > 0) {
subMesh.normals = normalsExtracted.ToArray ();
}
if (uvsExtracted.Count > 0)
subMesh.uvs = uvsExtracted.ToArray ();
if (colorsExtracted.Count > 0)
subMesh.colors = colorsExtracted.ToArray ();
splittedMeshes.Add (subMesh);
facesLeft = tmpLeftFaces;
}
}
private float ReadFloatFromIntPtr(IntPtr data, int offset) {
private float ReadFloatFromIntPtr (IntPtr data, int offset)
{
byte[] byteArray = new byte[4];
for (int j = 0; j < 4; ++j) {
byteArray[j] = Marshal.ReadByte(data, offset + j);
byteArray [j] = Marshal.ReadByte (data, offset + j);
}
return BitConverter.ToSingle(byteArray, 0);
return BitConverter.ToSingle (byteArray, 0);
}
// TODO(zhafang): Add back LoadFromURL.
public int LoadMeshFromAsset(string assetName, ref List<Mesh> meshes) {
TextAsset asset = Resources.Load(assetName, typeof(TextAsset)) as TextAsset;
public int LoadMeshFromAsset (string assetName, ref List<Mesh> meshes)
{
TextAsset asset = Resources.Load (assetName, typeof(TextAsset)) as TextAsset;
if (asset == null) {
Debug.Log("Didn't load file!");
Debug.Log ("Didn't load file!");
return -1;
}
byte[] encodedData = asset.bytes;
Debug.Log(encodedData.Length.ToString());
Debug.Log (encodedData.Length.ToString ());
if (encodedData.Length == 0) {
Debug.Log("Didn't load encoded data!");
Debug.Log ("Didn't load encoded data!");
return -1;
}
return DecodeMesh(encodedData, ref meshes);
return DecodeMesh (encodedData, ref meshes);
}
public unsafe int DecodeMesh(byte[] data, ref List<Mesh> meshes) {
DracoToUnityMesh *tmpMesh;
if (DecodeMeshForUnity(data, data.Length, &tmpMesh) <= 0) {
Debug.Log("Failed: Decoding error.");
public unsafe int DecodeMesh (byte[] data, ref List<Mesh> meshes)
{
DracoToUnityMesh* tmpMesh;
if (DecodeMeshForUnity (data, data.Length, &tmpMesh) <= 0) {
Debug.Log ("Failed: Decoding error.");
return -1;
}
Debug.Log("Num indices: " + tmpMesh -> numFaces.ToString());
Debug.Log("Num vertices: " + tmpMesh -> numVertices.ToString());
Debug.Log ("Num indices: " + tmpMesh->numFaces.ToString ());
Debug.Log ("Num vertices: " + tmpMesh->numVertices.ToString ());
if (tmpMesh->hasNormal)
Debug.Log ("Decoded mesh normals.");
if (tmpMesh->hasTexcoord)
Debug.Log ("Decoded mesh texcoords.");
if (tmpMesh->hasColor)
Debug.Log ("Decoded mesh colors.");
int numFaces = tmpMesh -> numFaces;
int[] newTriangles = new int[tmpMesh -> numFaces * 3];
for (int i = 0; i < tmpMesh -> numFaces; ++i) {
newTriangles[i * 3] = Marshal.ReadInt32(tmpMesh -> indices, i * 3 * 4);
newTriangles[i * 3 + 1] =
Marshal.ReadInt32(tmpMesh -> indices, i * 3 * 4 + 4);
newTriangles[i * 3 + 2] =
Marshal.ReadInt32(tmpMesh -> indices, i * 3 * 4 + 8);
int numFaces = tmpMesh->numFaces;
int[] newTriangles = new int[tmpMesh->numFaces * 3];
for (int i = 0; i < tmpMesh->numFaces; ++i) {
newTriangles [i * 3] = Marshal.ReadInt32 (tmpMesh->indices, i * 3 * 4);
newTriangles [i * 3 + 1] =
Marshal.ReadInt32 (tmpMesh->indices, i * 3 * 4 + 4);
newTriangles [i * 3 + 2] =
Marshal.ReadInt32 (tmpMesh->indices, i * 3 * 4 + 8);
}
// For floating point numbers, there's no Marshal functions could directly
// read from the unmanaged data.
// TODO(zhafang): Find better way to read float numbers.
Vector3[] newVertices = new Vector3[tmpMesh -> numVertices];
Vector3[] newVertices = new Vector3[tmpMesh->numVertices];
Vector2[] newUVs = new Vector2[0];
if (tmpMesh->hasTexcoord)
newUVs = new Vector2[tmpMesh->numVertices];
Vector3[] newNormals = new Vector3[0];
if (tmpMesh->hasNormal)
newNormals = new Vector3[tmpMesh->numVertices];
Vector3[] newColors = new Vector3[0];
if (tmpMesh->hasColor)
newColors = new Vector3[tmpMesh->numVertices];
int byteStridePerValue = 4;
int numValuePerVertex = 3;
int byteStridePerVertex = byteStridePerValue * numValuePerVertex;
/*
* TODO(zhafang): Change to:
* float[] pos = new float[3];
@ -165,44 +207,109 @@ public unsafe class DracoMeshLoader {
* }
* }
*/
for (int i = 0; i < tmpMesh -> numVertices; ++i) {
for (int j = 0; j < 3; ++j) {
newVertices[i][j] =
ReadFloatFromIntPtr(
tmpMesh -> position,
for (int i = 0; i < tmpMesh->numVertices; ++i) {
int numValuePerVertex = 3;
for (int j = 0; j < numValuePerVertex; ++j) {
int byteStridePerVertex = byteStridePerValue * numValuePerVertex;
newVertices [i] [j] =
ReadFloatFromIntPtr (
tmpMesh->position,
i * byteStridePerVertex + byteStridePerValue * j);
if (tmpMesh->hasNormal)
newNormals [i] [j] =
ReadFloatFromIntPtr (
tmpMesh->normal,
i * byteStridePerVertex + byteStridePerValue * j);
if (tmpMesh->hasColor)
newColors [i] [j] =
ReadFloatFromIntPtr (
tmpMesh->color,
i * byteStridePerVertex + byteStridePerValue * j);
}
if (tmpMesh->hasTexcoord) {
numValuePerVertex = 2;
for (int j = 0; j < numValuePerVertex; ++j) {
int byteStridePerVertex = byteStridePerValue * numValuePerVertex;
newUVs [i] [j] =
ReadFloatFromIntPtr (
tmpMesh->texcoord,
i * byteStridePerVertex + byteStridePerValue * j);
}
}
Marshal.FreeCoTaskMem(tmpMesh -> indices);
Marshal.FreeCoTaskMem(tmpMesh -> position);
Marshal.FreeCoTaskMem((IntPtr) tmpMesh);
}
Marshal.FreeCoTaskMem (tmpMesh->indices);
Marshal.FreeCoTaskMem (tmpMesh->position);
if (tmpMesh->hasNormal)
Marshal.FreeCoTaskMem (tmpMesh->normal);
if (tmpMesh->hasTexcoord)
Marshal.FreeCoTaskMem (tmpMesh->texcoord);
if (tmpMesh->hasColor)
Marshal.FreeCoTaskMem (tmpMesh->color);
Marshal.FreeCoTaskMem ((IntPtr)tmpMesh);
if (newVertices.Length > maxNumVerticesPerMesh) {
// Unity only support maximum 65534 vertices per mesh. So large meshes
// need to be splitted.
DecodedMesh decodedMesh = new DecodedMesh();
DecodedMesh decodedMesh = new DecodedMesh ();
decodedMesh.vertices = newVertices;
decodedMesh.faces = newTriangles;
List<DecodedMesh> splittedMeshes = new List<DecodedMesh>();
if (newUVs.Length != 0)
decodedMesh.uvs = newUVs;
if (newNormals.Length != 0)
decodedMesh.normals = newNormals;
if (newColors.Length != 0)
decodedMesh.colors = newColors;
List<DecodedMesh> splittedMeshes = new List<DecodedMesh> ();
SplitMesh(decodedMesh, ref splittedMeshes);
SplitMesh (decodedMesh, ref splittedMeshes);
for (int i = 0; i < splittedMeshes.Count; ++i) {
Mesh mesh = new Mesh();
mesh.vertices = splittedMeshes[i].vertices;
mesh.triangles = splittedMeshes[i].faces;
Mesh mesh = new Mesh ();
mesh.vertices = splittedMeshes [i].vertices;
mesh.triangles = splittedMeshes [i].faces;
if (splittedMeshes [i].uvs != null)
mesh.uv = splittedMeshes [i].uvs;
mesh.RecalculateBounds();
mesh.RecalculateNormals();
meshes.Add(mesh);
if (splittedMeshes [i].colors != null) {
mesh.colors = new Color[splittedMeshes [i].colors.Length];
for (int j = 0; j < splittedMeshes [i].colors.Length; ++j) {
mesh.colors [j] = new Color (splittedMeshes [i].colors [j] [0],
splittedMeshes [i].colors [j] [1], splittedMeshes [i].colors [j] [2]);
}
}
if (splittedMeshes [i].normals != null) {
mesh.normals = splittedMeshes [i].normals;
} else {
Debug.Log ("Sub mesh doesn't have normals, recomputed.");
mesh.RecalculateNormals ();
}
mesh.RecalculateBounds ();
meshes.Add (mesh);
}
} else {
Mesh mesh = new Mesh();
Mesh mesh = new Mesh ();
mesh.vertices = newVertices;
mesh.triangles = newTriangles;
if (newUVs.Length != 0)
mesh.uv = newUVs;
if (newNormals.Length != 0) {
mesh.normals = newNormals;
} else {
mesh.RecalculateNormals ();
Debug.Log ("Mesh doesn't have normals, recomputed.");
}
if (newColors.Length != 0) {
mesh.colors = new Color[newColors.Length];
for (int i = 0; i < newColors.Length; ++i) {
mesh.colors [i] = new Color (newColors [i] [0],
newColors [i] [1], newColors [i] [2]);
}
}
mesh.RecalculateBounds();
mesh.RecalculateNormals();
meshes.Add(mesh);
mesh.RecalculateBounds ();
meshes.Add (mesh);
}
// TODO(zhafang): Resize mesh to the a proper scale.

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