From: Chris Duncan <chris@zoso.dev>
Date: Sun, 12 Jan 2025 06:11:10 +0000 (-0800)
Subject: Extend random input to shader to accomodate validation of nonces.
X-Git-Tag: v1.1.0~10
X-Git-Url: https://zoso.dev/?a=commitdiff_plain;h=db0c58de1600a9d9016686fd10dae09eb9f5d5a0;p=nano-pow.git

Extend random input to shader to accomodate validation of nonces.
---

diff --git a/src/classes/gpu.ts b/src/classes/gpu.ts
index 85d907b..7b825f3 100644
--- a/src/classes/gpu.ts
+++ b/src/classes/gpu.ts
@@ -141,7 +141,8 @@ export class NanoPowGpu {
 			}
 			const random = Math.floor((Math.random() * 0xffffffff))
 			uboView.setUint32(32, random, true)
-			uboView.setUint32(36, threshold, true)
+			uboView.setUint32(36, random, true)
+			uboView.setUint32(40, threshold, true)
 			this.#device.queue.writeBuffer(this.#uboBuffer, 0, uboView)
 
 			// Reset `nonce` and `found` to 0u in WORK before each calculation
diff --git a/src/shaders/compute.wgsl b/src/shaders/compute.wgsl
index 8036a7d..354b65f 100644
--- a/src/shaders/compute.wgsl
+++ b/src/shaders/compute.wgsl
@@ -3,7 +3,7 @@
 
 struct UBO {
 	blockhash: array<vec4<u32>, 2>,
-	random: u32,
+	random: vec2<u32>,
 	threshold: u32
 };
 @group(0) @binding(0) var<uniform> ubo: UBO;
@@ -35,8 +35,8 @@ fn main(@builtin(global_invocation_id) id: vec3<u32>) {
 	/**
 	* Initialize (nonce||blockhash) concatenation
 	*/
-	var m0: u32 = ubo.random ^ id.x;
-	var m1: u32 = ubo.random ^ id.y;
+	var m0: u32 = ubo.random.x ^ id.x;
+	var m1: u32 = ubo.random.y ^ id.y;
 	var m2: u32 = ubo.blockhash[0u].x;
 	var m3: u32 = ubo.blockhash[0u].y;
 	var m4: u32 = ubo.blockhash[0u].z;