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Emscripten: Add a basic index.html based on emrun

Based on stripped down emrun output
pull/3814/head
Gleb Mazovetskiy 4 years ago
parent
commit
2d3ee0f5fd
  1. 2
      CMake/platforms/emscripten.cmake
  2. 228
      Packaging/emscripten/index.html
  3. 7
      docs/building.md

2
CMake/platforms/emscripten.cmake

@ -8,3 +8,5 @@ set(DEVILUTIONX_SYSTEM_LIBFMT OFF)
# warning: _BZ2_bzDecompress may need to be added to EXPORTED_FUNCTIONS if it arrives from a system library # warning: _BZ2_bzDecompress may need to be added to EXPORTED_FUNCTIONS if it arrives from a system library
# error: undefined symbol: BZ2_bzDecompressEnd (referenced by top-level compiled C/C++ code) # error: undefined symbol: BZ2_bzDecompressEnd (referenced by top-level compiled C/C++ code)
set(DEVILUTIONX_SYSTEM_BZIP2 OFF) set(DEVILUTIONX_SYSTEM_BZIP2 OFF)
file(COPY "${CMAKE_CURRENT_SOURCE_DIR}/Packaging/emscripten/index.html" DESTINATION "${CMAKE_CURRENT_BINARY_DIR}")

228
Packaging/emscripten/index.html

@ -0,0 +1,228 @@
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>DevilutionX</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<style>
body {
font-family: arial;
margin: 0;
padding: none;
}
.emscripten {
padding-right: 0;
margin-left: auto;
margin-right: auto;
display: block;
}
div.emscripten {
text-align: center;
}
div.emscripten_border {
border: 1px solid black;
}
/* the canvas *must not* have any border or padding, or mouse coords will be wrong */
canvas.emscripten {
border: 0px none;
background-color: black;
}
#emscripten_logo {
display: inline-block;
margin: 0;
}
.spinner {
height: 30px;
width: 30px;
margin: 0;
margin-top: 20px;
margin-left: 20px;
display: inline-block;
vertical-align: top;
-webkit-animation: rotation .8s linear infinite;
-moz-animation: rotation .8s linear infinite;
-o-animation: rotation .8s linear infinite;
animation: rotation 0.8s linear infinite;
border-left: 5px solid rgb(235, 235, 235);
border-right: 5px solid rgb(235, 235, 235);
border-bottom: 5px solid rgb(235, 235, 235);
border-top: 5px solid rgb(120, 120, 120);
border-radius: 100%;
background-color: rgb(189, 215, 46);
}
@-webkit-keyframes rotation {
from {
-webkit-transform: rotate(0deg);
}
to {
-webkit-transform: rotate(360deg);
}
}
@-moz-keyframes rotation {
from {
-moz-transform: rotate(0deg);
}
to {
-moz-transform: rotate(360deg);
}
}
@-o-keyframes rotation {
from {
-o-transform: rotate(0deg);
}
to {
-o-transform: rotate(360deg);
}
}
@keyframes rotation {
from {
transform: rotate(0deg);
}
to {
transform: rotate(360deg);
}
}
#status {
display: inline-block;
vertical-align: top;
margin-top: 30px;
margin-left: 20px;
font-weight: bold;
color: rgb(120, 120, 120);
}
#progress {
height: 20px;
width: 300px;
}
#controls {
display: inline-block;
float: right;
vertical-align: top;
margin-top: 30px;
margin-right: 20px;
}
#output {
width: 100%;
height: 200px;
margin: 0 auto;
margin-top: 10px;
border-left: 0px;
border-right: 0px;
padding-left: 0px;
padding-right: 0px;
display: block;
background-color: black;
color: white;
font-family: 'Lucida Console', Monaco, monospace;
outline: none;
}
</style>
</head>
<body>
<div class="spinner" id='spinner'></div>
<div class="emscripten" id="status">Downloading...</div>
<div class="emscripten">
<progress value="0" max="100" id="progress" hidden=1></progress>
</div>
<div class="emscripten_border">
<canvas class="emscripten" id="canvas" oncontextmenu="event.preventDefault()" tabindex=-1></canvas>
</div>
<textarea id="output" rows="8"></textarea>
<script type='text/javascript'>
var statusElement = document.getElementById('status');
var progressElement = document.getElementById('progress');
var spinnerElement = document.getElementById('spinner');
var Module = {
preRun: [],
postRun: [],
print: (function () {
var element = document.getElementById('output');
if (element) element.value = ''; // clear browser cache
return function (text) {
if (arguments.length > 1) text = Array.prototype.slice.call(arguments).join(' ');
console.log(text);
if (element) {
element.value += text + "\n";
element.scrollTop = element.scrollHeight; // focus on bottom
}
};
})(),
canvas: (function () {
var canvas = document.getElementById('canvas');
// As a default initial behavior, pop up an alert when webgl context is lost. To make your
// application robust, you may want to override this behavior before shipping!
// See http://www.khronos.org/registry/webgl/specs/latest/1.0/#5.15.2
canvas.addEventListener("webglcontextlost", function (e) { alert('WebGL context lost. You will need to reload the page.'); e.preventDefault(); }, false);
return canvas;
})(),
setStatus: function (text) {
if (!Module.setStatus.last) Module.setStatus.last = { time: Date.now(), text: '' };
if (text === Module.setStatus.last.text) return;
var m = text.match(/([^(]+)\((\d+(\.\d+)?)\/(\d+)\)/);
var now = Date.now();
if (m && now - Module.setStatus.last.time < 30) return; // if this is a progress update, skip it if too soon
Module.setStatus.last.time = now;
Module.setStatus.last.text = text;
if (m) {
text = m[1];
progressElement.value = parseInt(m[2]) * 100;
progressElement.max = parseInt(m[4]) * 100;
progressElement.hidden = false;
spinnerElement.hidden = false;
} else {
progressElement.value = null;
progressElement.max = null;
progressElement.hidden = true;
if (!text) spinnerElement.style.display = 'none';
}
statusElement.innerHTML = text;
},
totalDependencies: 0,
monitorRunDependencies: function (left) {
this.totalDependencies = Math.max(this.totalDependencies, left);
Module.setStatus(left ? 'Preparing... (' + (this.totalDependencies - left) + '/' + this.totalDependencies + ')' : 'All downloads complete.');
}
};
Module.setStatus('Downloading...');
window.onerror = function (event) {
// TODO: do not warn on ok events like simulating an infinite loop or exitStatus
Module.setStatus('Exception thrown, see JavaScript console');
spinnerElement.style.display = 'none';
Module.setStatus = function (text) {
if (text) Module.printErr('[post-exception status] ' + text);
};
};
</script>
<script async type="text/javascript" src="devilutionx.js"></script>
</body>
</html>

7
docs/building.md

@ -363,6 +363,13 @@ To build, install the [Emscripten SDK](https://emscripten.org/docs/getting_start
emcmake cmake -S. -Bbuild-em -DCMAKE_BUILD_TYPE=Release emcmake cmake -S. -Bbuild-em -DCMAKE_BUILD_TYPE=Release
cmake --build build-em -j $(getconf _NPROCESSORS_ONLN) cmake --build build-em -j $(getconf _NPROCESSORS_ONLN)
~~~ ~~~
To then run it:
~~~ bash
cd build-em
emrun index.html
~~~
</details> </details>
<details><summary><b>CMake build options</b></summary> <details><summary><b>CMake build options</b></summary>

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