From 153b8cef642b0a69144bf3a32cdae7ba7b26f6c7 Mon Sep 17 00:00:00 2001
From: Stewart Allen <sa@grid.space>
Date: Sun, 25 Jul 2021 00:05:25 -0400
Subject: [PATCH] drop preview to save memory

---
 src/mode/sla/client.js  |   4 +++-
 src/mode/sla/export.js  |   2 +-
 src/mode/sla/x_halot.js |   5 +++--
 wasm/kiri-sla.wasm      | Bin 1901 -> 1825 bytes
 wasm/makefile           |   2 +-
 5 files changed, 8 insertions(+), 5 deletions(-)

diff --git a/src/mode/sla/client.js b/src/mode/sla/client.js
index 78330ed1..d58a7213 100644
--- a/src/mode/sla/client.js
+++ b/src/mode/sla/client.js
@@ -92,7 +92,9 @@
             range.min = 0;
             range.max = lines.length - 1;
             range.oninput = function() {
-                let lineDV = new DataView(lines[range.value]);
+                let pdata = lines[range.value];
+                if (!pdata) return;
+                let lineDV = new DataView(pdata);
                 for (let i=0; i<lineDV.byteLength; i++) {
                     imgDV.setUint32(i*4, lineDV.getUint8(i));
                 }
diff --git a/src/mode/sla/export.js b/src/mode/sla/export.js
index 68d166c5..b9ec9c95 100644
--- a/src/mode/sla/export.js
+++ b/src/mode/sla/export.js
@@ -107,7 +107,7 @@
                 slices.push(lines);
                 // transfer image memory to browser main
                 // it *should* be sampled to save memory
-                image = image.buffer;
+                image = image ? image.buffer : undefined;
                 online({
                     progress: (index / layermax) * part1,
                     message: "image_gen",
diff --git a/src/mode/sla/x_halot.js b/src/mode/sla/x_halot.js
index 596fa936..85da6ac7 100644
--- a/src/mode/sla/x_halot.js
+++ b/src/mode/sla/x_halot.js
@@ -341,7 +341,7 @@
             writePoly(writer, poly);
         }
         wasm.render(0, imagelen, 0);
-        let image = wasm.heap.slice(0, imagelen);
+        let image = wasm.heap;//.slice(0, imagelen);
         let lines = [];
         for (let x=0; x<width; x++) {
             let y_start = 0;
@@ -361,7 +361,8 @@
                 lastv = v;
             }
         }
-        return { image, lines };
+        return { lines };
+        // return { image, lines };
     }
 
     if (!this.navigator && this.process && this.process.env) {
diff --git a/wasm/kiri-sla.wasm b/wasm/kiri-sla.wasm
index 78f8a4925cff29214becb84eadb09b41e6d179df..91617871ab345d693048afcf70460a50a1587566 100755
GIT binary patch
literal 1825
zcma)6&2A$_5bnQekEiX#$!4>5l3l7B4k!}hfD|N7Zlr)#D=u)yG1*zkW5-@kOe7G<
zIe^3wk>wq@aN08x55Sc--~o666u$D<j)ho+WVx!V>*xEbKU?%KFQgDc274yt{7i^5
zJ)h6vS(wU`b8#jS(rHa9Elh%sd@hwrtd!Tubz<wdj^BUxt8%q(W!+xn7nAY}C2X0G
zpXQ~ISvksk`S^VDG#9GV>kY<F2W5Uf>plB?d_EgY#=Tkpvr#UE!_{Cm=#K_p=0dc3
zy}T^Plip}@-sd!7>zA|s`S6qeRW5X6;eVW8&L(9pOtv`25t2nxuSpT5lOp@2QPV=Y
zpHsCzw_lSWRro}8;m9J?-<FE-B}T!VHU$|<ilCz$M)95ylvKt<{TP=zs?E4WKyL;V
znOLh5&1PI9UgtR4Q8J8r8gvnGI8iubCc1pJh?&TR9M<cK6P0q|i85%DF0V~&tP?xS
z)+ef6CGJ(GRhb6LTI;gCwbx#IN2^vSFw@vBgB}JGX+Z@G@mhCDzc1d^?aH(&lU9bo
z5|S{7xbC$lP2pU;PDw^v1j%%;Vq@k}da37pQ2rhXq`av_*e*g1FW~nG#)gbd8uVks
zZ-mFXPup?7@cUGYTZM0+&J_LuXEl5i$eQeC!977iM)yX(P1#HTP<JsdCHK-FMBy#%
zdqa(5Wx|o~Py=vLWx`gJsAGN$QFOu~9h_mVfebjggX0JMbjLvYhz{uRhHxS1(aj6$
z;Pm4U^zc(iCrYwIZyi5Ufl+CMywZ4ktEaSuO**H#C_n0<s%pt?cpP<Z7??n_7j%Tv
zKU<>E##=e%DZ;lHxC&bf)P^^sL3F3WynC#67X){CSLuSdp$7%_3&Aa^rrx0CnkuxI
zZc;THRB`biR5er8w8K<)Dyqr9Qsp))s(`rlN~#snrowX=YH{Dz<_hUPIcgULw!uHo
zN&=1?Cpv2KY!0SgJIXkiL7V&p3sfx0ZQ3hVf+YD7G`SFA0<Frz%Z79gzH@(QS!2D{
zuvb~Ug<*Oc#fRRiE_SEz4-wQU1ZN;I>oe5FYZ?E7P!7FYHbY{v%+Xyn$I;SVw@^pF
zkX=SOg}#8BpO~dq0}}K@YFcnqOyl(&{~Q*Xhb8l7ZQ*gH1H1}1Wl(s9ig&=Rz2znq
zzWQ>0eRF=}|ID`xX9%p@(`aUB{HKI-RR$Y>gQu<l>mAq`M}9&?a^!blmb3CzV0kj|
zX1;!hdAWeo=8Ab@=GAPuoC&H65M_|7*>W{ou4c>CY_estxxMVLba%URl#&@bBVHHI
Y3KDM!*Md)C7@toAjwD<n;y0=L8&ZHSga7~l

literal 1901
zcmaJ>O>ZMb5UuK-Pq&@*CRrz0BT+qYK#^A5g2X9}6jrMh7mzsOgzO+?;>7ETi39>U
z2aq@-vit|``v>+{@L!NX;nj@o7=gG<S65fPdiA<`=;Z2xiHM(M$HenvqGO)Zv6<sz
z=lbP2+-hP;ur!wK<QyfbB@<H=^Gh}+PMB}ZjY)E3gr9$UV_f<p=gCERF{!^Xv^N@^
zUA{Q0%hTEDtFJFlXJ?bk(d^{Qamkd_<>iaACex|M<*2+ooxCW?IwYLU&Q8W>-<CxE
z(WtEJ%gJawIX%&2%JQq($?5rLC)Xv#-Nyd3yqZnwl9Eod4PyjTnx{;G9aHDeZf=R)
zZ?V~$C*KQ&o9sP9MXxH7_nCZOup~vUOIFxt(V_Ihpz<4%gpJClLc*1Qh`gxsn;O;i
zU3(~9H9JN290^A9vEP#XwSR06&7qz|MJMnlILlu9oj^X44IfLoZ=zz)4<z-r%WicT
z*z^5i6X`9ASnmKgD0XG%7)0W#u!=Ci_TwIj+eafq*^%8_!2!we_LU5<`}G%j{6*la
z9yE~X+(%C0kX2y7fvbYU-JP9E=UI=O7TA%!5%OA41=4~txK&C7xL2}=-M>MR8ihNa
z9-$6-r+u4ZJ30jOST(fhtJCs+ux~b-&L60%+$a*uW`!##9tDPqNMauYa@DQ{)Ae@a
zwRUmvzwKIW*9tD7!c8>oKKjpg6=>NmNN)VIUF~eCVAE>P;8J37itAe3?FLsKN+w%X
z1wB3_TFeP<SOYWZYK%HFZ=K}o%*8hOO*V#7deW~B47tzQ%psbo@Ijn~sDclT`;mrm
zNT3S>)fq)|=!Rh3m_Dc~bkrOva69a{cIW=EoX&9}?L<ETM>`Gl)F(zq)&xE;@*@mv
z<TFXU!FYxn4u4_lhPYat8_x)g7cos)u38*O3?#FRnj_9hs-vM}Y9zS|JcX6&(3519
z9?~@2%mbvt*|1j8R4ktb(8ijI@rg<WUMgNwB2j>rAs!);n<C<#;ytQbYjg^uMTbha
zshA)ZSV>4{HEPDQ@P?*p*;$ar;92N526!WmuS3=bT!*MJ;_G0h$`s?9F4!)mS@6>$
zE%)v{_k|Wmy=C`tG;i53*ho@CxFsK6@`2(lAG}uZ!M5dtfR+z(8b0`~+>2?3wY!%R
z^M~i}emBf|Cya4!WGeK!18E?7(FLfO7mR^f_cI)J-Jw^Uwt>;Q-@>1(A8<nF!A=WP
z71-#U0$l+6UE|}RiRw11j02Nt;(>_(lP!)pbXS3U3+My0+Xim8OTS&ZNb9fCwpZ5f
z%6e-Fg@kAtcI(2NLsDsQ@zgx&Jby$VSQO9&$hv@+F4~tM2z5mB-hQrsP8ZQT<Psdd
UORf)FJAXMXuoZGKg&#8aH*A?W-2eap

diff --git a/wasm/makefile b/wasm/makefile
index 75c49510..772f4cbf 100644
--- a/wasm/makefile
+++ b/wasm/makefile
@@ -1,7 +1,7 @@
 all: kiri-sla.wasm kiri-geo.wasm kiri-ani.wasm
 
 kiri-sla.wasm: kiri-sla.c
-	emcc --no-entry -o kiri-sla.wasm kiri-sla.c -O3 -s ERROR_ON_UNDEFINED_SYMBOLS=0
+	emcc --no-entry -o kiri-sla.wasm kiri-sla.c -O3 -s ERROR_ON_UNDEFINED_SYMBOLS=0 -s TOTAL_MEMORY=40mb
 
 kiri-geo.wasm: kiri-geo.cpp
 	emcc --no-entry -o kiri-geo.wasm clipper.cpp kiri-geo.cpp -Oz -s ERROR_ON_UNDEFINED_SYMBOLS=0 -s TOTAL_MEMORY=40mb