From f9633bcbfee2332ecb17ac12c95b82451ac37c44 Mon Sep 17 00:00:00 2001 From: Chris Duncan Date: Thu, 9 Jan 2025 13:59:29 -0800 Subject: [PATCH] To reduce file size, delete original shader saved as a comment. --- src/lib/nano-pow/shaders/gpu-compute.ts | 171 ------------------------ 1 file changed, 171 deletions(-) diff --git a/src/lib/nano-pow/shaders/gpu-compute.ts b/src/lib/nano-pow/shaders/gpu-compute.ts index 739339f..784560b 100644 --- a/src/lib/nano-pow/shaders/gpu-compute.ts +++ b/src/lib/nano-pow/shaders/gpu-compute.ts @@ -7676,174 +7676,3 @@ fn main( return; } ` - - - -/** -* The original NanoPow compute shader derived from nano-webgl-pow is saved in -* this comment for reference purposes. It is not quite as performant as the -* inlined version exported above. -*/ - -/* -struct UBO { - blockhash: array, 2>, - random: u32, - threshold: u32 -}; -@group(0) @binding(0) var ubo: UBO; - -struct WORK { - nonce: vec2, - found: atomic -}; -@group(0) @binding(1) var work: WORK; - -// Defined separately from uint v[32] below as the original value is required -// to calculate the second uint32 of the digest for threshold comparison -const BLAKE2B_IV32_1: u32 = 0x6A09E667u; - -// These are offsets into the input data buffer for each mixing step. -// They are multiplied by 2 from the original SIGMA values in -// the C reference implementation, which refered to uint64s. - -const SIGMA82: array = array( - 0u,2u,4u,6u,8u,10u,12u,14u,16u,18u,20u,22u,24u,26u,28u,30u, - 28u,20u,8u,16u,18u,30u,26u,12u,2u,24u,0u,4u,22u,14u,10u,6u, - 22u,16u,24u,0u,10u,4u,30u,26u,20u,28u,6u,12u,14u,2u,18u,8u, - 14u,18u,6u,2u,26u,24u,22u,28u,4u,12u,10u,20u,8u,0u,30u,16u, - 18u,0u,10u,14u,4u,8u,20u,30u,28u,2u,22u,24u,12u,16u,6u,26u, - 4u,24u,12u,20u,0u,22u,16u,6u,8u,26u,14u,10u,30u,28u,2u,18u, - 24u,10u,2u,30u,28u,26u,8u,20u,0u,14u,12u,6u,18u,4u,16u,22u, - 26u,22u,14u,28u,24u,2u,6u,18u,10u,0u,30u,8u,16u,12u,4u,20u, - 12u,30u,28u,18u,22u,6u,0u,16u,24u,4u,26u,14u,2u,8u,20u,10u, - 20u,4u,16u,8u,14u,12u,2u,10u,30u,22u,18u,28u,6u,24u,26u,0u, - 0u,2u,4u,6u,8u,10u,12u,14u,16u,18u,20u,22u,24u,26u,28u,30u, - 28u,20u,8u,16u,18u,30u,26u,12u,2u,24u,0u,4u,22u,14u,10u,6u -); - -// 64-bit unsigned addition within the compression buffer -// Sets v[i,i+1] += b -// LSb is the Least-Significant (32) Bits of b -// MSb is the Most-Significant (32) Bits of b -// If LSb overflows, increment MSb operand -fn add_uint64 (v: ptr>, i: u32, LSb: u32, MSb: u32) { - var o0: u32 = (*v)[i] + LSb; - var o1: u32 = (*v)[i+1u] + MSb; - if ((*v)[i] > 0xFFFFFFFFu - LSb) { - o1 = o1 + 1u; - } - (*v)[i] = o0; - (*v)[i+1u] = o1; -} - -// G Mixing function -fn G (v: ptr>, m: ptr>, a: u32, b: u32, c: u32, d: u32, ix: u32, iy: u32) { - add_uint64(v, a, (*v)[b], (*v)[b+1u]); - add_uint64(v, a, (*m)[ix], (*m)[ix+1u]); - - // v[d,d+1] = (v[d,d+1] xor v[a,a+1]) rotated to the right by 32 bits - var xor0: u32 = (*v)[d] ^ (*v)[a]; - var xor1: u32 = (*v)[d+1u] ^ (*v)[a+1u]; - (*v)[d] = xor1; - (*v)[d+1u] = xor0; - - add_uint64(v, c, (*v)[d], (*v)[d+1u]); - - // v[b,b+1] = (v[b,b+1] xor v[c,c+1]) rotated right by 24 bits - xor0 = (*v)[b] ^ (*v)[c]; - xor1 = (*v)[b+1u] ^ (*v)[c+1u]; - (*v)[b] = (xor0 >> 24u) ^ (xor1 << 8u); - (*v)[b+1u] = (xor1 >> 24u) ^ (xor0 << 8u); - - add_uint64(v, a, (*v)[b], (*v)[b+1u]); - add_uint64(v, a, (*m)[iy], (*m)[iy+1u]); - - // v[d,d+1] = (v[d,d+1] xor v[a,a+1]) rotated right by 16 bits - xor0 = (*v)[d] ^ (*v)[a]; - xor1 = (*v)[d+1u] ^ (*v)[a+1u]; - (*v)[d] = (xor0 >> 16u) ^ (xor1 << 16u); - (*v)[d+1u] = (xor1 >> 16u) ^ (xor0 << 16u); - - add_uint64(v, c, (*v)[d], (*v)[d+1u]); - - // v[b,b+1] = (v[b,b+1] xor v[c,c+1]) rotated right by 63 bits - xor0 = (*v)[b] ^ (*v)[c]; - xor1 = (*v)[b+1u] ^ (*v)[c+1u]; - (*v)[b] = (xor1 >> 31u) ^ (xor0 << 1u); - (*v)[b+1u] = (xor0 >> 31u) ^ (xor1 << 1u); -} - -// Main compute function -// 8-byte work is split into two 4-byte u32. Low 4 bytes are random u32 from -// UBO. High 4 bytes are the random value XOR'd with index of each thread. -@compute @workgroup_size(${this.workload}) -fn main( - @builtin(workgroup_id) workgroup_id: vec3, - @builtin(local_invocation_id) local_id: vec3 -) { - if (atomicLoad(&work.found) != 0u) { return; } - - let threshold: u32 = ubo.threshold; - - // Flatten 3D workgroup and local identifiers into u32 for each thread - var id: u32 = ((workgroup_id.x & 0xff) << 24) | - ((workgroup_id.y & 0xff) << 16) | - ((workgroup_id.z & 0xff) << 8) | - (local_id.x & 0xff); - - // Initialize (nonce||blockhash) concatenation - var m: array; - m[0u] = ubo.random; - m[1u] = ubo.random ^ id; - m[2u] = ubo.blockhash[0u].x; - m[3u] = ubo.blockhash[0u].y; - m[4u] = ubo.blockhash[0u].z; - m[5u] = ubo.blockhash[0u].w; - m[6u] = ubo.blockhash[1u].x; - m[7u] = ubo.blockhash[1u].y; - m[8u] = ubo.blockhash[1u].z; - m[9u] = ubo.blockhash[1u].w; - - - // Compression buffer intialized to 2 instances of initialization vector - // The following values have been modified from the BLAKE2B_IV: - // OUTLEN is constant 8 bytes - // v[0u] ^= 0x01010000u ^ uint(OUTLEN); - // INLEN is constant 40 bytes: work value (8) + block hash (32) - // v[24u] ^= uint(INLEN); - // It is always the "last" compression at this INLEN - // v[28u] = ~v[28u]; - // v[29u] = ~v[29u]; - var v = array( - 0xF2BDC900u, 0x6A09E667u, 0x84CAA73Bu, 0xBB67AE85u, - 0xFE94F82Bu, 0x3C6EF372u, 0x5F1D36F1u, 0xA54FF53Au, - 0xADE682D1u, 0x510E527Fu, 0x2B3E6C1Fu, 0x9B05688Cu, - 0xFB41BD6Bu, 0x1F83D9ABu, 0x137E2179u, 0x5BE0CD19u, - 0xF3BCC908u, 0x6A09E667u, 0x84CAA73Bu, 0xBB67AE85u, - 0xFE94F82Bu, 0x3C6EF372u, 0x5F1D36F1u, 0xA54FF53Au, - 0xADE682F9u, 0x510E527Fu, 0x2B3E6C1Fu, 0x9B05688Cu, - 0x04BE4294u, 0xE07C2654u, 0x137E2179u, 0x5BE0CD19u - ); - - // Twelve rounds of mixing as part of BLAKE2b compression step - for (var r: u32 = 0u; r < 12u; r = r + 1u) { - G(&v, &m, 0u, 8u, 16u, 24u, SIGMA82[r * 16u + 0u], SIGMA82[r * 16u + 1u]); - G(&v, &m, 2u, 10u, 18u, 26u, SIGMA82[r * 16u + 2u], SIGMA82[r * 16u + 3u]); - G(&v, &m, 4u, 12u, 20u, 28u, SIGMA82[r * 16u + 4u], SIGMA82[r * 16u + 5u]); - G(&v, &m, 6u, 14u, 22u, 30u, SIGMA82[r * 16u + 6u], SIGMA82[r * 16u + 7u]); - G(&v, &m, 0u, 10u, 20u, 30u, SIGMA82[r * 16u + 8u], SIGMA82[r * 16u + 9u]); - G(&v, &m, 2u, 12u, 22u, 24u, SIGMA82[r * 16u + 10u], SIGMA82[r * 16u + 11u]); - G(&v, &m, 4u, 14u, 16u, 26u, SIGMA82[r * 16u + 12u], SIGMA82[r * 16u + 13u]); - G(&v, &m, 6u, 8u, 18u, 28u, SIGMA82[r * 16u + 14u], SIGMA82[r * 16u + 15u]); - } - - // Set nonce if it passes the threshold and no other thread has set it - if ((BLAKE2B_IV32_1 ^ v[1u] ^ v[17u]) > threshold && atomicLoad(&work.found) == 0u) { - atomicStore(&work.found, 1u); - work.nonce.x = m[0]; - work.nonce.y = m[1]; - } - return; -} -*/ -- 2.34.1