From: Chris Duncan <chris@zoso.dev>
Date: Wed, 18 Dec 2024 23:50:30 +0000 (-0800)
Subject: Move uniform transfers outside of draw loop where possible.
X-Git-Url: https://zoso.dev/?a=commitdiff_plain;h=98a8751c9f1b2d0a7f0f8a1aacff9b0457f1a320;p=libnemo.git

Move uniform transfers outside of draw loop where possible.
---

diff --git a/src/lib/workers/pow.ts b/src/lib/workers/pow.ts
index fee4e81..c9e3bab 100644
--- a/src/lib/workers/pow.ts
+++ b/src/lib/workers/pow.ts
@@ -16,12 +16,6 @@ export class Pow {
 		})
 	}
 
-	/**
-	* nano-webgl-pow
-	* Nano Currency Proof of Work Value generation using WebGL2
-	* Author:  numtel <ben@latenightsketches.com>
-	* License: MIT
-	*/
 	// Vertex Shader
 	static #vsSource = `#version 300 es
 #pragma vscode_glsllint_stage: vert
@@ -294,6 +288,7 @@ void main() {
 	}
 
 	static #calculate (hashHex: string, callback: (nonce: string | PromiseLike<string>) => any, threshold: number): void {
+		if (Pow.#gl == null) throw new Error('WebGL 2 is required')
 		if (!/^[A-F-a-f0-9]{64}$/.test(hashHex)) throw new Error(`invalid_hash ${hashHex}`)
 		if (typeof threshold !== 'number') throw new TypeError(`Invalid threshold ${threshold}`)
 		if (this.#gl == null) throw new Error('WebGL 2 is required')
@@ -305,6 +300,9 @@ void main() {
 			view.setUint8(i / 2, parseInt(byte, 16))
 		}
 		const hashBytes = new Uint32Array(view.buffer)
+		Pow.#gl.uniform1uiv(Pow.#blockHashLocation, hashBytes)
+		Pow.#gl.uniform1ui(Pow.#thresholdLocation, threshold)
+		Pow.#gl.uniform1f(Pow.#workloadLocation, Pow.#WORKLOAD - 1)
 		const work0 = new Uint8Array(4)
 		const work1 = new Uint8Array(4)
 
@@ -322,9 +320,6 @@ void main() {
 
 			Pow.#gl.uniform4uiv(Pow.#work0Location, work0)
 			Pow.#gl.uniform4uiv(Pow.#work1Location, work1)
-			Pow.#gl.uniform1uiv(Pow.#blockHashLocation, hashBytes)
-			Pow.#gl.uniform1ui(Pow.#thresholdLocation, threshold)
-			Pow.#gl.uniform1f(Pow.#workloadLocation, Pow.#WORKLOAD - 1)
 
 			Pow.#gl.beginQuery(Pow.#gl.ANY_SAMPLES_PASSED_CONSERVATIVE, Pow.#query)
 			Pow.#gl.drawArrays(Pow.#gl.TRIANGLES, 0, 6)