Files
d4r/vulkan/kvk.cpp
T
woutermans 50fa65d87b engine/rr: native Ray Reconstruction stages with capture/replay and shim integration
- engine/rr: d4r's own shaders for the denoiser frame (exposure, six encoders,
  five decoders, hkpn output stage) at NGX layouts, plus PTX->GLSL/HIP packing
  scripts, reference implementations and weight extraction
- runtime.h/runtime_rr.inc, game_rr.{h,cpp}: GameDenoiser wired into the engine
  build (d4r-rr replay binary) and the D3D12 shim's feature-13 path
- shim: answer GetFeatureRequirements from d4r's own state only (the old
  cross-binary CUDA handoff crashed OptiScaler's scan); drop the core's
  CUDA GetFeatureRequirements import
- shim/harness: exact guide capture/replay of a frame's RR inputs
- kernels/rr: expanded enc0/engine prototypes; kernels/tools: ptxsim rewrite
  plus rrsim and an engine test; vulkan: ptx2glsl FP8/cooperative-matrix
  support, kvk inout buffers and KVK_DISABLE_OPTIMIZATION
- bridge: report the surface array in cuSurfObjectCreate traces
- packaging: RR settings and the ICU launch overrides in D4R_README
2026-10-12 12:47:53 +02:00

296 lines
21 KiB
C++

// Runs one translated DLSS texture kernel as a Vulkan compute shader on captured inputs.
// kvk SHADER.spv MANIFEST [repeats] [subgroup]
// MANIFEST lines (bindings are assigned in the order ptx2glsl.py uses: parameter block, textures by
// offset, surfaces by offset):
// param FILE
// grid X Y
// tex OFF FILE W H CHANNELS BITS linear|nearest
// surf OFF W H CHANNELS BITS INITFILE|- OUTFILE
// buf OFF FILE DELTA (8-byte pointer at OFF = buffer address + DELTA)
// lut FILE (storage buffer bound after the surfaces)
// bufout OFF FILE (after the dispatch, write the pointer buffer of parameter offset OFF to FILE)
// outbuf FILE BYTES (storage buffer bound after those, written to FILE after the dispatch)
// inout FILE OUTFILE (storage buffer initialised from FILE, bound like outbuf, written to OUTFILE)
// bindings N0 N1 ... (optional: the binding number of each of the above, in that order, for shaders
// whose bindings are not ptx2glsl.py's; e.g. engine/layer_m.comp's L stages)
#include <vulkan/vulkan.h>
#include <algorithm>
#include <chrono>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <fstream>
#include <map>
#include <sstream>
#include <string>
#include <vector>
#define CK(x) do { VkResult r_ = (x); if (r_ != VK_SUCCESS) { fprintf(stderr, "%s failed: %d\n", #x, r_); exit(1); } } while (0)
static std::vector<char> slurp(const std::string& p)
{
std::ifstream f(p, std::ios::binary);
if (!f) { fprintf(stderr, "cannot read %s\n", p.c_str()); exit(1); }
return std::vector<char>((std::istreambuf_iterator<char>(f)), {});
}
static VkDevice dev; static VkPhysicalDeviceMemoryProperties mp;
static VkDeviceMemory alloc(VkMemoryRequirements mr, VkMemoryPropertyFlags want, bool bda)
{
uint32_t mt = ~0u;
for (uint32_t t = 0; t < mp.memoryTypeCount; ++t) if ((mr.memoryTypeBits >> t & 1) && (mp.memoryTypes[t].propertyFlags & want) == want) { mt = t; break; }
VkMemoryAllocateFlagsInfo fi{VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_FLAGS_INFO}; fi.flags = VK_MEMORY_ALLOCATE_DEVICE_ADDRESS_BIT;
VkMemoryAllocateInfo ai{VK_STRUCTURE_TYPE_MEMORY_ALLOCATE_INFO, bda ? &fi : nullptr}; ai.allocationSize = mr.size; ai.memoryTypeIndex = mt;
VkDeviceMemory m; CK(vkAllocateMemory(dev, &ai, nullptr, &m)); return m;
}
struct Buf { VkBuffer b; VkDeviceMemory m; void* map; VkDeviceSize size; uint64_t addr; };
static Buf make_buf(VkDeviceSize size, VkBufferUsageFlags usage)
{
Buf r{}; r.size = size;
VkBufferCreateInfo ci{VK_STRUCTURE_TYPE_BUFFER_CREATE_INFO}; ci.size = size; ci.usage = usage | VK_BUFFER_USAGE_SHADER_DEVICE_ADDRESS_BIT;
CK(vkCreateBuffer(dev, &ci, nullptr, &r.b));
VkMemoryRequirements mr; vkGetBufferMemoryRequirements(dev, r.b, &mr);
// shader-visible data must live in VRAM: the first host-visible type on RADV is system memory, which the GPU reads over PCIe
const VkMemoryPropertyFlags vram = VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT | VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT;
bool has_vram = false;
for (uint32_t t = 0; t < mp.memoryTypeCount; ++t) has_vram |= (mr.memoryTypeBits >> t & 1) && (mp.memoryTypes[t].propertyFlags & vram) == vram;
r.m = alloc(mr, has_vram ? vram : VK_MEMORY_PROPERTY_HOST_VISIBLE_BIT | VK_MEMORY_PROPERTY_HOST_COHERENT_BIT, true);
CK(vkBindBufferMemory(dev, r.b, r.m, 0)); CK(vkMapMemory(dev, r.m, 0, size, 0, &r.map));
VkBufferDeviceAddressInfo ai{VK_STRUCTURE_TYPE_BUFFER_DEVICE_ADDRESS_INFO}; ai.buffer = r.b; r.addr = vkGetBufferDeviceAddress(dev, &ai);
return r;
}
struct Img { VkImage i; VkImageView v; VkFormat f; uint32_t w, h, bpp; std::string init, out; bool surf, linear; int off; };
static VkFormat fmt_of(int ch, int bits)
{
// 8: UNORM, 9: SNORM, one byte per channel (CUDA's UNORM_INT8Xn / SNORM_INT8Xn arrays)
if (bits == 8) return ch == 1 ? VK_FORMAT_R8_UNORM : ch == 2 ? VK_FORMAT_R8G8_UNORM : VK_FORMAT_R8G8B8A8_UNORM;
if (bits == 9) return ch == 1 ? VK_FORMAT_R8_SNORM : ch == 2 ? VK_FORMAT_R8G8_SNORM : VK_FORMAT_R8G8B8A8_SNORM;
if (bits == 10 && ch == 4) return VK_FORMAT_A2B10G10R10_UNORM_PACK32;
if (bits == 16) return ch == 1 ? VK_FORMAT_R16_SFLOAT : ch == 2 ? VK_FORMAT_R16G16_SFLOAT : VK_FORMAT_R16G16B16A16_SFLOAT;
return ch == 1 ? VK_FORMAT_R32_SFLOAT : ch == 2 ? VK_FORMAT_R32G32_SFLOAT : VK_FORMAT_R32G32B32A32_SFLOAT;
}
int main(int argc, char** argv)
{
if (argc < 3) return 1;
const int repeats = argc > 3 ? atoi(argv[3]) : 1; const uint32_t subgroup = argc > 4 ? atoi(argv[4]) : 32;
VkApplicationInfo app{VK_STRUCTURE_TYPE_APPLICATION_INFO}; app.apiVersion = VK_API_VERSION_1_3;
VkInstanceCreateInfo ici{VK_STRUCTURE_TYPE_INSTANCE_CREATE_INFO}; ici.pApplicationInfo = &app;
VkInstance inst; CK(vkCreateInstance(&ici, nullptr, &inst));
uint32_t np = 8; VkPhysicalDevice pds[8]; vkEnumeratePhysicalDevices(inst, &np, pds);
VkPhysicalDevice pd = pds[0];
for (uint32_t i = 0; i < np; ++i) { VkPhysicalDeviceProperties p; vkGetPhysicalDeviceProperties(pds[i], &p); if (p.deviceType == VK_PHYSICAL_DEVICE_TYPE_DISCRETE_GPU) pd = pds[i]; }
// FP8 cooperative matrices (engine/rr's translated stages, engine/layer_m.comp)
VkPhysicalDeviceShaderFloat8FeaturesEXT f8{VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_SHADER_FLOAT8_FEATURES_EXT};
VkPhysicalDeviceCooperativeMatrixFeaturesKHR cm{VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_COOPERATIVE_MATRIX_FEATURES_KHR, &f8};
VkPhysicalDeviceVulkan13Features v13{VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_1_3_FEATURES, &cm};
VkPhysicalDeviceVulkan12Features v12{VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_1_2_FEATURES, &v13};
VkPhysicalDeviceVulkan11Features v11{VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_VULKAN_1_1_FEATURES, &v12};
VkPhysicalDeviceFeatures2 f2{VK_STRUCTURE_TYPE_PHYSICAL_DEVICE_FEATURES_2, &v11};
vkGetPhysicalDeviceFeatures2(pd, &f2);
vkGetPhysicalDeviceMemoryProperties(pd, &mp);
uint32_t nq = 8; VkQueueFamilyProperties qf[8]; vkGetPhysicalDeviceQueueFamilyProperties(pd, &nq, qf);
uint32_t qi = 0; for (uint32_t i = 0; i < nq; ++i) if (qf[i].queueFlags & VK_QUEUE_COMPUTE_BIT) { qi = i; break; }
float prio = 1; VkDeviceQueueCreateInfo qci{VK_STRUCTURE_TYPE_DEVICE_QUEUE_CREATE_INFO}; qci.queueFamilyIndex = qi; qci.queueCount = 1; qci.pQueuePriorities = &prio;
std::vector<const char*> exts;
if (cm.cooperativeMatrix) exts.push_back(VK_KHR_COOPERATIVE_MATRIX_EXTENSION_NAME);
if (f8.shaderFloat8) exts.push_back(VK_EXT_SHADER_FLOAT8_EXTENSION_NAME);
if (!cm.cooperativeMatrix) v13.pNext = nullptr; else if (!f8.shaderFloat8) cm.pNext = nullptr;
VkDeviceCreateInfo dci{VK_STRUCTURE_TYPE_DEVICE_CREATE_INFO, &f2}; dci.queueCreateInfoCount = 1; dci.pQueueCreateInfos = &qci;
dci.enabledExtensionCount = static_cast<uint32_t>(exts.size()); dci.ppEnabledExtensionNames = exts.data();
CK(vkCreateDevice(pd, &dci, nullptr, &dev));
VkQueue q; vkGetDeviceQueue(dev, qi, 0, &q);
VkCommandPoolCreateInfo cpci{VK_STRUCTURE_TYPE_COMMAND_POOL_CREATE_INFO}; cpci.queueFamilyIndex = qi; cpci.flags = VK_COMMAND_POOL_CREATE_RESET_COMMAND_BUFFER_BIT;
VkCommandPool cp; CK(vkCreateCommandPool(dev, &cpci, nullptr, &cp));
VkCommandBufferAllocateInfo cai{VK_STRUCTURE_TYPE_COMMAND_BUFFER_ALLOCATE_INFO}; cai.commandPool = cp; cai.level = VK_COMMAND_BUFFER_LEVEL_PRIMARY; cai.commandBufferCount = 1;
VkCommandBuffer cb; CK(vkAllocateCommandBuffers(dev, &cai, &cb));
auto run = [&](auto&& record) {
VkCommandBufferBeginInfo bi{VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO}; CK(vkBeginCommandBuffer(cb, &bi)); record(); CK(vkEndCommandBuffer(cb));
VkSubmitInfo si{VK_STRUCTURE_TYPE_SUBMIT_INFO}; si.commandBufferCount = 1; si.pCommandBuffers = &cb;
CK(vkQueueSubmit(q, 1, &si, VK_NULL_HANDLE)); CK(vkQueueWaitIdle(q));
};
// ---------------------------------------------------------------- manifest
std::vector<char> param; uint32_t gx = 1, gy = 1;
std::vector<Img> imgs; std::map<int, std::pair<Buf, int64_t>> bufs; std::vector<Buf> luts; std::vector<std::string> lutOut; std::map<int, std::string> bufOut;
std::vector<uint32_t> remap;
std::ifstream mf(argv[2]); std::string line;
while (std::getline(mf, line))
{
std::istringstream ls(line); std::string k; ls >> k;
if (k == "param") { std::string f; ls >> f; param = slurp(f); }
else if (k == "grid") ls >> gx >> gy;
else if (k == "bindings") { uint32_t b; while (ls >> b) remap.push_back(b); }
else if (k == "tex" || k == "surf")
{
Img im{}; int ch, bits; std::string mode; im.surf = k == "surf";
if (im.surf) ls >> im.off >> im.w >> im.h >> ch >> bits >> im.init >> im.out;
else { ls >> im.off >> im.init >> im.w >> im.h >> ch >> bits >> mode; im.linear = mode == "linear"; }
im.f = fmt_of(ch, bits); im.bpp = bits < 16 ? ch : ch * bits / 8;
imgs.push_back(im);
}
else if (k == "lut")
{
std::string f; ls >> f; auto data = slurp(f);
Buf b = make_buf(data.size(), VK_BUFFER_USAGE_STORAGE_BUFFER_BIT); memcpy(b.map, data.data(), data.size()); luts.push_back(b); lutOut.push_back("");
}
else if (k == "bufout") { int off; std::string f; ls >> off >> f; bufOut[off] = f; }
else if (k == "outbuf")
{
std::string f; VkDeviceSize n; ls >> f >> n;
Buf b = make_buf(n, VK_BUFFER_USAGE_STORAGE_BUFFER_BIT); memset(b.map, 0, n); luts.push_back(b); lutOut.push_back(f);
}
else if (k == "inout")
{
std::string f, o; ls >> f >> o; auto data = slurp(f);
Buf b = make_buf(data.size(), VK_BUFFER_USAGE_STORAGE_BUFFER_BIT); memcpy(b.map, data.data(), data.size());
luts.push_back(b); lutOut.push_back(o);
}
else if (k == "buf")
{
int off; std::string f; int64_t delta; ls >> off >> f >> delta;
auto data = slurp(f); Buf b = make_buf(data.size(), VK_BUFFER_USAGE_STORAGE_BUFFER_BIT); memcpy(b.map, data.data(), data.size());
bufs[off] = {b, delta};
}
}
for (auto& [off, b] : bufs) { uint64_t a = b.first.addr + b.second; memcpy(param.data() + off, &a, 8); }
std::sort(imgs.begin(), imgs.end(), [](const Img& a, const Img& b) { return a.surf != b.surf ? !a.surf : a.off < b.off; });
Buf pbuf = make_buf((param.size() + 3) & ~3ull, VK_BUFFER_USAGE_STORAGE_BUFFER_BIT); memcpy(pbuf.map, param.data(), param.size());
// ---------------------------------------------------------------- images
VkSamplerCreateInfo sci{VK_STRUCTURE_TYPE_SAMPLER_CREATE_INFO};
sci.addressModeU = sci.addressModeV = sci.addressModeW = VK_SAMPLER_ADDRESS_MODE_CLAMP_TO_EDGE; sci.maxLod = 0;
VkSampler nearest, linear; CK(vkCreateSampler(dev, &sci, nullptr, &nearest));
sci.magFilter = sci.minFilter = VK_FILTER_LINEAR; CK(vkCreateSampler(dev, &sci, nullptr, &linear));
std::vector<Buf> staging;
for (Img& im : imgs)
{
const bool r16u = im.surf && im.f == VK_FORMAT_R16_SFLOAT; // byte-addressed surface: bound as R16_UINT
VkImageCreateInfo ci{VK_STRUCTURE_TYPE_IMAGE_CREATE_INFO}; ci.imageType = VK_IMAGE_TYPE_2D; ci.format = im.f; ci.extent = {im.w, im.h, 1};
ci.mipLevels = 1; ci.arrayLayers = 1; ci.samples = VK_SAMPLE_COUNT_1_BIT;
ci.usage = VK_IMAGE_USAGE_SAMPLED_BIT | VK_IMAGE_USAGE_STORAGE_BIT | VK_IMAGE_USAGE_TRANSFER_DST_BIT | VK_IMAGE_USAGE_TRANSFER_SRC_BIT;
if (r16u) ci.flags = VK_IMAGE_CREATE_MUTABLE_FORMAT_BIT;
CK(vkCreateImage(dev, &ci, nullptr, &im.i));
VkMemoryRequirements mr; vkGetImageMemoryRequirements(dev, im.i, &mr);
CK(vkBindImageMemory(dev, im.i, alloc(mr, VK_MEMORY_PROPERTY_DEVICE_LOCAL_BIT, false), 0));
VkImageViewCreateInfo vi{VK_STRUCTURE_TYPE_IMAGE_VIEW_CREATE_INFO}; vi.image = im.i; vi.viewType = VK_IMAGE_VIEW_TYPE_2D;
vi.format = r16u ? VK_FORMAT_R16_UINT : im.f; vi.subresourceRange = {VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1};
CK(vkCreateImageView(dev, &vi, nullptr, &im.v));
Buf st = make_buf((VkDeviceSize)im.w * im.h * im.bpp, VK_BUFFER_USAGE_TRANSFER_SRC_BIT | VK_BUFFER_USAGE_TRANSFER_DST_BIT);
memset(st.map, 0, st.size);
if (im.init != "-") { auto d = slurp(im.init); memcpy(st.map, d.data(), std::min<size_t>(d.size(), st.size)); }
staging.push_back(st);
}
auto barrier = [&](VkImage i, VkImageLayout a, VkImageLayout b) {
VkImageMemoryBarrier mb{VK_STRUCTURE_TYPE_IMAGE_MEMORY_BARRIER}; mb.oldLayout = a; mb.newLayout = b; mb.image = i;
mb.srcAccessMask = mb.dstAccessMask = VK_ACCESS_MEMORY_READ_BIT | VK_ACCESS_MEMORY_WRITE_BIT;
mb.srcQueueFamilyIndex = mb.dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED; mb.subresourceRange = {VK_IMAGE_ASPECT_COLOR_BIT, 0, 1, 0, 1};
vkCmdPipelineBarrier(cb, VK_PIPELINE_STAGE_ALL_COMMANDS_BIT, VK_PIPELINE_STAGE_ALL_COMMANDS_BIT, 0, 0, nullptr, 0, nullptr, 1, &mb);
};
auto upload = [&]() {
for (size_t i = 0; i < imgs.size(); ++i)
{
barrier(imgs[i].i, VK_IMAGE_LAYOUT_UNDEFINED, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL);
VkBufferImageCopy r{}; r.imageSubresource = {VK_IMAGE_ASPECT_COLOR_BIT, 0, 0, 1}; r.imageExtent = {imgs[i].w, imgs[i].h, 1};
vkCmdCopyBufferToImage(cb, staging[i].b, imgs[i].i, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, 1, &r);
barrier(imgs[i].i, VK_IMAGE_LAYOUT_TRANSFER_DST_OPTIMAL, VK_IMAGE_LAYOUT_GENERAL);
}
};
run(upload);
// ---------------------------------------------------------------- pipeline
auto code = slurp(argv[1]);
VkShaderModuleCreateInfo smi{VK_STRUCTURE_TYPE_SHADER_MODULE_CREATE_INFO}; smi.codeSize = code.size(); smi.pCode = (const uint32_t*)code.data();
VkShaderModule sm; CK(vkCreateShaderModule(dev, &smi, nullptr, &sm));
auto B = [&](size_t positional) {
if (remap.empty()) return (uint32_t)positional;
if (positional >= remap.size()) { fprintf(stderr, "bindings: no number for resource %zu\n", positional); exit(1); }
return remap[positional];
};
std::vector<VkDescriptorSetLayoutBinding> lb;
lb.push_back({B(0), VK_DESCRIPTOR_TYPE_STORAGE_BUFFER, 1, VK_SHADER_STAGE_COMPUTE_BIT, nullptr});
for (size_t i = 0; i < imgs.size(); ++i)
lb.push_back({B(i + 1), imgs[i].surf ? VK_DESCRIPTOR_TYPE_STORAGE_IMAGE : VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 1, VK_SHADER_STAGE_COMPUTE_BIT, nullptr});
for (size_t i = 0; i < luts.size(); ++i)
lb.push_back({B(imgs.size() + 1 + i), VK_DESCRIPTOR_TYPE_STORAGE_BUFFER, 1, VK_SHADER_STAGE_COMPUTE_BIT, nullptr});
VkDescriptorSetLayoutCreateInfo dli{VK_STRUCTURE_TYPE_DESCRIPTOR_SET_LAYOUT_CREATE_INFO}; dli.bindingCount = lb.size(); dli.pBindings = lb.data();
VkDescriptorSetLayout dl; CK(vkCreateDescriptorSetLayout(dev, &dli, nullptr, &dl));
VkPipelineLayoutCreateInfo pli{VK_STRUCTURE_TYPE_PIPELINE_LAYOUT_CREATE_INFO}; pli.setLayoutCount = 1; pli.pSetLayouts = &dl;
VkPipelineLayout pl; CK(vkCreatePipelineLayout(dev, &pli, nullptr, &pl));
VkPipelineShaderStageRequiredSubgroupSizeCreateInfo rs{VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_REQUIRED_SUBGROUP_SIZE_CREATE_INFO}; rs.requiredSubgroupSize = subgroup;
VkComputePipelineCreateInfo cpi{VK_STRUCTURE_TYPE_COMPUTE_PIPELINE_CREATE_INFO};
// KVK_DISABLE_OPTIMIZATION=1: VK_PIPELINE_CREATE_DISABLE_OPTIMIZATION_BIT (RADV: ACO without its optimizer/scheduler)
if (getenv("KVK_DISABLE_OPTIMIZATION")) cpi.flags |= VK_PIPELINE_CREATE_DISABLE_OPTIMIZATION_BIT;
cpi.stage = {VK_STRUCTURE_TYPE_PIPELINE_SHADER_STAGE_CREATE_INFO, &rs, VK_PIPELINE_SHADER_STAGE_CREATE_REQUIRE_FULL_SUBGROUPS_BIT, VK_SHADER_STAGE_COMPUTE_BIT, sm, "main", nullptr};
cpi.layout = pl;
VkPipeline pipe;
auto c0 = std::chrono::steady_clock::now();
CK(vkCreateComputePipelines(dev, VK_NULL_HANDLE, 1, &cpi, nullptr, &pipe));
fprintf(stderr, "pipeline compile: %.0f ms\n", std::chrono::duration<double, std::milli>(std::chrono::steady_clock::now() - c0).count());
VkDescriptorPoolSize dps[3] = {{VK_DESCRIPTOR_TYPE_STORAGE_BUFFER, 16}, {VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, 32}, {VK_DESCRIPTOR_TYPE_STORAGE_IMAGE, 32}};
VkDescriptorPoolCreateInfo dpi{VK_STRUCTURE_TYPE_DESCRIPTOR_POOL_CREATE_INFO}; dpi.maxSets = 1; dpi.poolSizeCount = 3; dpi.pPoolSizes = dps;
VkDescriptorPool dp; CK(vkCreateDescriptorPool(dev, &dpi, nullptr, &dp));
VkDescriptorSetAllocateInfo dai{VK_STRUCTURE_TYPE_DESCRIPTOR_SET_ALLOCATE_INFO}; dai.descriptorPool = dp; dai.descriptorSetCount = 1; dai.pSetLayouts = &dl;
VkDescriptorSet ds; CK(vkAllocateDescriptorSets(dev, &dai, &ds));
VkDescriptorBufferInfo pbi{pbuf.b, 0, VK_WHOLE_SIZE};
std::vector<VkDescriptorImageInfo> ii(imgs.size()); std::vector<VkWriteDescriptorSet> wr;
wr.push_back({VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET, nullptr, ds, B(0), 0, 1, VK_DESCRIPTOR_TYPE_STORAGE_BUFFER, nullptr, &pbi, nullptr});
for (size_t i = 0; i < imgs.size(); ++i)
{
ii[i] = {imgs[i].linear ? linear : nearest, imgs[i].v, VK_IMAGE_LAYOUT_GENERAL};
wr.push_back({VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET, nullptr, ds, B(i + 1), 0, 1, imgs[i].surf ? VK_DESCRIPTOR_TYPE_STORAGE_IMAGE : VK_DESCRIPTOR_TYPE_COMBINED_IMAGE_SAMPLER, &ii[i], nullptr, nullptr});
}
std::vector<VkDescriptorBufferInfo> li(luts.size());
for (size_t i = 0; i < luts.size(); ++i)
{
li[i] = {luts[i].b, 0, VK_WHOLE_SIZE};
wr.push_back({VK_STRUCTURE_TYPE_WRITE_DESCRIPTOR_SET, nullptr, ds, B(imgs.size() + 1 + i), 0, 1, VK_DESCRIPTOR_TYPE_STORAGE_BUFFER, nullptr, &li[i], nullptr});
}
vkUpdateDescriptorSets(dev, wr.size(), wr.data(), 0, nullptr);
auto dispatch = [&](int n) {
vkCmdBindPipeline(cb, VK_PIPELINE_BIND_POINT_COMPUTE, pipe);
vkCmdBindDescriptorSets(cb, VK_PIPELINE_BIND_POINT_COMPUTE, pl, 0, 1, &ds, 0, nullptr);
for (int r = 0; r < n; ++r) vkCmdDispatch(cb, gx, gy, 1);
};
run([&] { dispatch(1); });
// ---------------------------------------------------------------- read back
run([&] {
for (size_t i = 0; i < imgs.size(); ++i) if (imgs[i].surf)
{
VkBufferImageCopy r{}; r.imageSubresource = {VK_IMAGE_ASPECT_COLOR_BIT, 0, 0, 1}; r.imageExtent = {imgs[i].w, imgs[i].h, 1};
vkCmdCopyImageToBuffer(cb, imgs[i].i, VK_IMAGE_LAYOUT_GENERAL, staging[i].b, 1, &r);
}
});
for (size_t i = 0; i < imgs.size(); ++i) if (imgs[i].surf)
std::ofstream(imgs[i].out, std::ios::binary).write((const char*)staging[i].map, staging[i].size);
for (auto& [off, f] : bufOut)
std::ofstream(f, std::ios::binary).write((const char*)bufs[off].first.map, bufs[off].first.size);
for (size_t i = 0; i < luts.size(); ++i) if (!lutOut[i].empty())
std::ofstream(lutOut[i], std::ios::binary).write((const char*)luts[i].map, luts[i].size);
if (const char* gap = getenv("KVK_GAP_US"))
{
// one dispatch per submit with an idle gap, like one kernel inside a frame
std::vector<double> t;
for (int it = 0; it < 600; ++it)
{
VkCommandBufferBeginInfo bi{VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO}; CK(vkBeginCommandBuffer(cb, &bi)); dispatch(1); CK(vkEndCommandBuffer(cb));
VkSubmitInfo si{VK_STRUCTURE_TYPE_SUBMIT_INFO}; si.commandBufferCount = 1; si.pCommandBuffers = &cb;
auto t0 = std::chrono::steady_clock::now();
CK(vkQueueSubmit(q, 1, &si, VK_NULL_HANDLE)); CK(vkQueueWaitIdle(q));
if (it >= 100) t.push_back(std::chrono::duration<double, std::micro>(std::chrono::steady_clock::now() - t0).count());
auto until = std::chrono::steady_clock::now() + std::chrono::microseconds(atoi(gap));
while (std::chrono::steady_clock::now() < until) {}
}
std::sort(t.begin(), t.end());
printf("%s: %.1f us per submitted dispatch with %s us gaps (median of %zu, min %.1f)\n", argv[1], t[t.size() / 2], gap, t.size(), t[0]);
}
else if (repeats > 1)
{
std::vector<double> t;
for (int it = 0; it < 12; ++it)
{
VkCommandBufferBeginInfo bi{VK_STRUCTURE_TYPE_COMMAND_BUFFER_BEGIN_INFO}; CK(vkBeginCommandBuffer(cb, &bi)); dispatch(repeats); CK(vkEndCommandBuffer(cb));
VkSubmitInfo si{VK_STRUCTURE_TYPE_SUBMIT_INFO}; si.commandBufferCount = 1; si.pCommandBuffers = &cb;
auto t0 = std::chrono::steady_clock::now();
CK(vkQueueSubmit(q, 1, &si, VK_NULL_HANDLE)); CK(vkQueueWaitIdle(q));
if (it >= 3) t.push_back(std::chrono::duration<double, std::micro>(std::chrono::steady_clock::now() - t0).count() / repeats);
}
std::sort(t.begin(), t.end());
printf("%s: %.1f us per dispatch (median of %zu submits of %d, min %.1f)\n", argv[1], t[t.size() / 2], t.size(), repeats, t[0]);
}
return 0;
}