robbitay/CWasm
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Added a bunch of WebGL functions related to shader uniforms to gl_functions.js

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This commit is contained in:
Taylor Robbins
2025-09-01 18:50:14 -07:00
parent b548b7bb26
commit 42cf6d9e9f
7 changed files with 315 additions and 39 deletions
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26
data/main.js
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@@ -21,33 +21,21 @@ function AcquireCanvas(canvasWidth, canvasHeight)
// canvasContainer = document.getElementById("canvas_container");
// console.assert(canvasContainer != null, "Couldn't find canvas container DOM element!");
appGlobals.canvas = canvas;
return canvas;
}
function CreateGlContext(canvas)
function CreateGlContext()
{
var canvasContextGl = canvas.getContext("webgl2");
var canvasContextGl = appGlobals.canvas.getContext("webgl2");
if (canvasContextGl === null) { console.error("Unable to initialize WebGL render context. Your browser or machine may not support it :("); return null; }
// console.dir(canvasContextGl);
appGlobals.glContext = canvasContextGl;
return canvasContextGl;
}
async function LoadWasmModule(wasmFilePath, initialWasmPageCount)
{
appGlobals.textDecoder = new TextDecoder("utf-8");
let wasmEnvironment =
{
...jsStdFunctions,
...jsGlFunctions,
};
appGlobals.wasmModule = await loadWasmModule(wasmFilePath, wasmEnvironment);
appGlobals.wasmModule = await loadWasmModule(wasmFilePath, { ...jsStdFunctions, ...jsGlFunctions });
appGlobals.memDataView = new DataView(new Uint8Array(appGlobals.wasmModule.exports.memory.buffer).buffer);
// let heapBaseAddress = appGlobals.wasmModule.exports.__heap_base.value;
// console.log("__heap_base = " + heapBaseAddress);
let memorySize = appGlobals.wasmModule.exports.memory.buffer.byteLength;
let numMemoryPagesAfterLoad = memorySize / WASM_MEMORY_PAGE_SIZE;
if ((memorySize % WASM_MEMORY_PAGE_SIZE) != 0)
@@ -61,17 +49,17 @@ async function LoadWasmModule(wasmFilePath, initialWasmPageCount)
async function MainLoop()
{
console.log("Initializing WebGL Canvas...");
var canvas = AcquireCanvas(600, 400);
var glContext = CreateGlContext(canvas);
AcquireCanvas(600, 400);
CreateGlContext();
console.log("Loading WASM Module...");
await LoadWasmModule("app.wasm", 4);
appGlobals.wasmModule.exports.App_Initialize();
console.log("Running!");
function renderFrame()
function renderFrame(currentTime)
{
appGlobals.wasmModule.exports.App_UpdateAndRender();
appGlobals.wasmModule.exports.App_UpdateAndRender(currentTime);
window.requestAnimationFrame(renderFrame);
}
window.requestAnimationFrame(renderFrame);