aurora/lib/webgpu/gpu.cpp

467 lines
16 KiB
C++

#include "gpu.hpp"
#include <aurora/aurora.h>
#include "../window.hpp"
#include "../internal.hpp"
#include <SDL.h>
#include <dawn/native/DawnNative.h>
#include <magic_enum.hpp>
#include <memory>
#include <algorithm>
#include "../dawn/BackendBinding.hpp"
namespace aurora::webgpu {
static Module Log("aurora::gpu");
WGPUDevice g_device;
WGPUQueue g_queue;
WGPUSwapChain g_swapChain;
WGPUBackendType g_backendType;
GraphicsConfig g_graphicsConfig;
TextureWithSampler g_frameBuffer;
TextureWithSampler g_frameBufferResolved;
TextureWithSampler g_depthBuffer;
// EFB -> XFB copy pipeline
static WGPUBindGroupLayout g_CopyBindGroupLayout;
WGPURenderPipeline g_CopyPipeline;
WGPUBindGroup g_CopyBindGroup;
static std::unique_ptr<dawn::native::Instance> g_Instance;
static dawn::native::Adapter g_Adapter;
static WGPUAdapterProperties g_AdapterProperties;
static std::unique_ptr<utils::BackendBinding> g_BackendBinding;
TextureWithSampler create_render_texture(bool multisampled) {
const WGPUExtent3D size{
.width = g_graphicsConfig.width,
.height = g_graphicsConfig.height,
.depthOrArrayLayers = 1,
};
const auto format = g_graphicsConfig.colorFormat;
uint32_t sampleCount = 1;
if (multisampled) {
sampleCount = g_graphicsConfig.msaaSamples;
}
const WGPUTextureDescriptor textureDescriptor{
.label = "Render texture",
.usage = WGPUTextureUsage_RenderAttachment | WGPUTextureUsage_TextureBinding | WGPUTextureUsage_CopySrc |
WGPUTextureUsage_CopyDst,
.dimension = WGPUTextureDimension_2D,
.size = size,
.format = format,
.mipLevelCount = 1,
.sampleCount = sampleCount,
};
auto texture = wgpuDeviceCreateTexture(g_device, &textureDescriptor);
const WGPUTextureViewDescriptor viewDescriptor{
.dimension = WGPUTextureViewDimension_2D,
.mipLevelCount = WGPU_MIP_LEVEL_COUNT_UNDEFINED,
.arrayLayerCount = WGPU_ARRAY_LAYER_COUNT_UNDEFINED,
};
auto view = wgpuTextureCreateView(texture, &viewDescriptor);
const WGPUSamplerDescriptor samplerDescriptor{
.label = "Render sampler",
.addressModeU = WGPUAddressMode_ClampToEdge,
.addressModeV = WGPUAddressMode_ClampToEdge,
.addressModeW = WGPUAddressMode_ClampToEdge,
.magFilter = WGPUFilterMode_Linear,
.minFilter = WGPUFilterMode_Linear,
.mipmapFilter = WGPUFilterMode_Linear,
.lodMinClamp = 0.f,
.lodMaxClamp = 1000.f,
.maxAnisotropy = 1,
};
auto sampler = wgpuDeviceCreateSampler(g_device, &samplerDescriptor);
return {
.texture{texture},
.view{view},
.size = size,
.format = format,
.sampler{sampler},
};
}
static TextureWithSampler create_depth_texture() {
const WGPUExtent3D size{
.width = g_graphicsConfig.width,
.height = g_graphicsConfig.height,
.depthOrArrayLayers = 1,
};
const auto format = g_graphicsConfig.depthFormat;
const WGPUTextureDescriptor textureDescriptor{
.label = "Depth texture",
.usage = WGPUTextureUsage_RenderAttachment | WGPUTextureUsage_TextureBinding,
.dimension = WGPUTextureDimension_2D,
.size = size,
.format = format,
.mipLevelCount = 1,
.sampleCount = g_graphicsConfig.msaaSamples,
};
auto texture = wgpuDeviceCreateTexture(g_device, &textureDescriptor);
const WGPUTextureViewDescriptor viewDescriptor{
.dimension = WGPUTextureViewDimension_2D,
.mipLevelCount = WGPU_MIP_LEVEL_COUNT_UNDEFINED,
.arrayLayerCount = WGPU_ARRAY_LAYER_COUNT_UNDEFINED,
};
auto view = wgpuTextureCreateView(texture, &viewDescriptor);
const WGPUSamplerDescriptor samplerDescriptor{
.label = "Depth sampler",
.addressModeU = WGPUAddressMode_ClampToEdge,
.addressModeV = WGPUAddressMode_ClampToEdge,
.addressModeW = WGPUAddressMode_ClampToEdge,
.magFilter = WGPUFilterMode_Linear,
.minFilter = WGPUFilterMode_Linear,
.mipmapFilter = WGPUFilterMode_Linear,
.lodMinClamp = 0.f,
.lodMaxClamp = 1000.f,
.maxAnisotropy = 1,
};
auto sampler = wgpuDeviceCreateSampler(g_device, &samplerDescriptor);
return {
.texture{texture},
.view{view},
.size = size,
.format = format,
.sampler{sampler},
};
}
void create_copy_pipeline() {
WGPUShaderModuleWGSLDescriptor sourceDescriptor{
.chain = {.sType = WGPUSType_ShaderModuleWGSLDescriptor},
.source = R"""(
@group(0) @binding(0)
var efb_sampler: sampler;
@group(0) @binding(1)
var efb_texture: texture_2d<f32>;
struct VertexOutput {
@builtin(position) pos: vec4<f32>,
@location(0) uv: vec2<f32>,
};
var<private> pos: array<vec2<f32>, 3> = array<vec2<f32>, 3>(
vec2(-1.0, 1.0),
vec2(-1.0, -3.0),
vec2(3.0, 1.0),
);
var<private> uvs: array<vec2<f32>, 3> = array<vec2<f32>, 3>(
vec2(0.0, 0.0),
vec2(0.0, 2.0),
vec2(2.0, 0.0),
);
@stage(vertex)
fn vs_main(@builtin(vertex_index) vtxIdx: u32) -> VertexOutput {
var out: VertexOutput;
out.pos = vec4<f32>(pos[vtxIdx], 0.0, 1.0);
out.uv = uvs[vtxIdx];
return out;
}
@stage(fragment)
fn fs_main(in: VertexOutput) -> @location(0) vec4<f32> {
return textureSample(efb_texture, efb_sampler, in.uv);
}
)""",
};
const WGPUShaderModuleDescriptor moduleDescriptor{
.nextInChain = &sourceDescriptor.chain,
.label = "XFB Copy Module",
};
auto module = wgpuDeviceCreateShaderModule(g_device, &moduleDescriptor);
const std::array colorTargets{WGPUColorTargetState{
.format = g_graphicsConfig.colorFormat,
.writeMask = WGPUColorWriteMask_All,
}};
const WGPUFragmentState fragmentState{
.module = module,
.entryPoint = "fs_main",
.targetCount = colorTargets.size(),
.targets = colorTargets.data(),
};
const std::array bindGroupLayoutEntries{
WGPUBindGroupLayoutEntry{
.binding = 0,
.visibility = WGPUShaderStage_Fragment,
.sampler =
WGPUSamplerBindingLayout{
.type = WGPUSamplerBindingType_Filtering,
},
},
WGPUBindGroupLayoutEntry{
.binding = 1,
.visibility = WGPUShaderStage_Fragment,
.texture =
WGPUTextureBindingLayout{
.sampleType = WGPUTextureSampleType_Float,
.viewDimension = WGPUTextureViewDimension_2D,
},
},
};
const WGPUBindGroupLayoutDescriptor bindGroupLayoutDescriptor{
.entryCount = bindGroupLayoutEntries.size(),
.entries = bindGroupLayoutEntries.data(),
};
g_CopyBindGroupLayout = wgpuDeviceCreateBindGroupLayout(g_device, &bindGroupLayoutDescriptor);
const WGPUPipelineLayoutDescriptor layoutDescriptor{
.bindGroupLayoutCount = 1,
.bindGroupLayouts = &g_CopyBindGroupLayout,
};
auto pipelineLayout = wgpuDeviceCreatePipelineLayout(g_device, &layoutDescriptor);
const WGPURenderPipelineDescriptor pipelineDescriptor{
.layout = pipelineLayout,
.vertex =
WGPUVertexState{
.module = module,
.entryPoint = "vs_main",
},
.primitive =
WGPUPrimitiveState{
.topology = WGPUPrimitiveTopology_TriangleList,
},
.multisample =
WGPUMultisampleState{
.count = 1,
.mask = UINT32_MAX,
},
.fragment = &fragmentState,
};
g_CopyPipeline = wgpuDeviceCreateRenderPipeline(g_device, &pipelineDescriptor);
wgpuPipelineLayoutRelease(pipelineLayout);
}
void create_copy_bind_group() {
const std::array bindGroupEntries{
WGPUBindGroupEntry{
.binding = 0,
.sampler = g_graphicsConfig.msaaSamples > 1 ? g_frameBufferResolved.sampler : g_frameBuffer.sampler,
},
WGPUBindGroupEntry{
.binding = 1,
.textureView = g_graphicsConfig.msaaSamples > 1 ? g_frameBufferResolved.view : g_frameBuffer.view,
},
};
const WGPUBindGroupDescriptor bindGroupDescriptor{
.layout = g_CopyBindGroupLayout,
.entryCount = bindGroupEntries.size(),
.entries = bindGroupEntries.data(),
};
g_CopyBindGroup = wgpuDeviceCreateBindGroup(g_device, &bindGroupDescriptor);
}
static void error_callback(WGPUErrorType type, char const* message, void* userdata) {
Log.report(LOG_FATAL, FMT_STRING("Dawn error {}: {}"), magic_enum::enum_name(static_cast<WGPUErrorType>(type)),
message);
}
static void device_callback(WGPURequestDeviceStatus status, WGPUDevice device, char const* message, void* userdata) {
if (status == WGPURequestDeviceStatus_Success) {
g_device = device;
} else {
Log.report(LOG_WARNING, FMT_STRING("Device request failed with message: {}"), message);
}
*static_cast<bool*>(userdata) = true;
}
static WGPUBackendType to_wgpu_backend(AuroraBackend backend) {
switch (backend) {
case BACKEND_WEBGPU:
return WGPUBackendType_WebGPU;
case BACKEND_D3D12:
return WGPUBackendType_D3D12;
case BACKEND_METAL:
return WGPUBackendType_Metal;
case BACKEND_VULKAN:
return WGPUBackendType_Vulkan;
case BACKEND_OPENGL:
return WGPUBackendType_OpenGL;
case BACKEND_OPENGLES:
return WGPUBackendType_OpenGLES;
default:
return WGPUBackendType_Null;
}
}
bool initialize(AuroraBackend auroraBackend) {
if (!g_Instance) {
Log.report(LOG_INFO, FMT_STRING("Creating Dawn instance"));
g_Instance = std::make_unique<dawn::native::Instance>();
}
WGPUBackendType backend = to_wgpu_backend(auroraBackend);
Log.report(LOG_INFO, FMT_STRING("Attempting to initialize {}"), magic_enum::enum_name(backend));
#if 0
// D3D12's debug layer is very slow
g_Instance->EnableBackendValidation(backend != WGPUBackendType::D3D12);
#endif
SDL_Window* window = window::get_sdl_window();
if (!utils::DiscoverAdapter(g_Instance.get(), window, backend)) {
return false;
}
{
std::vector<dawn::native::Adapter> adapters = g_Instance->GetAdapters();
std::sort(adapters.begin(), adapters.end(), [&](const auto& a, const auto& b) {
WGPUAdapterProperties propertiesA;
WGPUAdapterProperties propertiesB;
a.GetProperties(&propertiesA);
b.GetProperties(&propertiesB);
constexpr std::array PreferredTypeOrder{
WGPUAdapterType_DiscreteGPU,
WGPUAdapterType_IntegratedGPU,
WGPUAdapterType_CPU,
};
const auto typeItA = std::find(PreferredTypeOrder.begin(), PreferredTypeOrder.end(), propertiesA.adapterType);
const auto typeItB = std::find(PreferredTypeOrder.begin(), PreferredTypeOrder.end(), propertiesB.adapterType);
return typeItA < typeItB;
});
const auto adapterIt = std::find_if(adapters.begin(), adapters.end(), [=](const auto& adapter) -> bool {
WGPUAdapterProperties properties;
adapter.GetProperties(&properties);
return properties.backendType == backend;
});
if (adapterIt == adapters.end()) {
return false;
}
g_Adapter = *adapterIt;
}
g_Adapter.GetProperties(&g_AdapterProperties);
g_backendType = g_AdapterProperties.backendType;
const auto backendName = magic_enum::enum_name(g_backendType);
Log.report(LOG_INFO, FMT_STRING("Graphics adapter information\n API: {}\n Device: {} ({})\n Driver: {}"),
backendName, g_AdapterProperties.name, magic_enum::enum_name(g_AdapterProperties.adapterType),
g_AdapterProperties.driverDescription);
{
WGPUSupportedLimits supportedLimits{};
g_Adapter.GetLimits(&supportedLimits);
const WGPURequiredLimits requiredLimits{
.limits =
{
// Use "best" supported alignments
.minUniformBufferOffsetAlignment = supportedLimits.limits.minUniformBufferOffsetAlignment == 0
? static_cast<uint32_t>(WGPU_LIMIT_U32_UNDEFINED)
: supportedLimits.limits.minUniformBufferOffsetAlignment,
.minStorageBufferOffsetAlignment = supportedLimits.limits.minStorageBufferOffsetAlignment == 0
? static_cast<uint32_t>(WGPU_LIMIT_U32_UNDEFINED)
: supportedLimits.limits.minStorageBufferOffsetAlignment,
},
};
std::vector<WGPUFeatureName> features;
const auto supportedFeatures = g_Adapter.GetSupportedFeatures();
for (const auto* const feature : supportedFeatures) {
if (strcmp(feature, "texture-compression-bc") == 0) {
features.push_back(WGPUFeatureName_TextureCompressionBC);
}
}
const std::array enableToggles {
/* clang-format off */
#if _WIN32
"use_dxc",
#endif
#ifdef NDEBUG
"skip_validation",
"disable_robustness",
#endif
"use_user_defined_labels_in_backend",
"disable_symbol_renaming",
/* clang-format on */
};
const WGPUDawnTogglesDeviceDescriptor togglesDescriptor{
.chain = {.sType = WGPUSType_DawnTogglesDeviceDescriptor},
.forceEnabledTogglesCount = enableToggles.size(),
.forceEnabledToggles = enableToggles.data(),
};
const WGPUDeviceDescriptor deviceDescriptor{
.nextInChain = &togglesDescriptor.chain,
.requiredFeaturesCount = static_cast<uint32_t>(features.size()),
.requiredFeatures = features.data(),
.requiredLimits = &requiredLimits,
};
bool deviceCallbackReceived = false;
g_Adapter.RequestDevice(&deviceDescriptor, &device_callback, &deviceCallbackReceived);
// while (!deviceCallbackReceived) {
// TODO wgpuInstanceProcessEvents
// }
if (!g_device) {
return false;
}
wgpuDeviceSetUncapturedErrorCallback(g_device, &error_callback, nullptr);
}
wgpuDeviceSetDeviceLostCallback(g_device, nullptr, nullptr);
g_queue = wgpuDeviceGetQueue(g_device);
g_BackendBinding = std::unique_ptr<utils::BackendBinding>(utils::CreateBinding(g_backendType, window, g_device));
if (!g_BackendBinding) {
return false;
}
auto swapChainFormat = static_cast<WGPUTextureFormat>(g_BackendBinding->GetPreferredSwapChainTextureFormat());
if (swapChainFormat == WGPUTextureFormat_RGBA8UnormSrgb) {
swapChainFormat = WGPUTextureFormat_RGBA8Unorm;
} else if (swapChainFormat == WGPUTextureFormat_BGRA8UnormSrgb) {
swapChainFormat = WGPUTextureFormat_BGRA8Unorm;
}
Log.report(LOG_INFO, FMT_STRING("Using swapchain format {}"), magic_enum::enum_name(swapChainFormat));
{
const WGPUSwapChainDescriptor descriptor{
.format = swapChainFormat,
.implementation = g_BackendBinding->GetSwapChainImplementation(),
};
g_swapChain = wgpuDeviceCreateSwapChain(g_device, nullptr, &descriptor);
}
{
const auto size = window::get_window_size();
g_graphicsConfig = GraphicsConfig{
.width = size.fb_width,
.height = size.fb_height,
.colorFormat = swapChainFormat,
.depthFormat = WGPUTextureFormat_Depth32Float,
.msaaSamples = g_config.msaa,
.textureAnisotropy = g_config.maxTextureAnisotropy,
};
create_copy_pipeline();
resize_swapchain(size.fb_width, size.fb_height, true);
// g_windowSize = size;
}
return true;
}
void shutdown() {
wgpuBindGroupLayoutRelease(g_CopyBindGroupLayout);
wgpuRenderPipelineRelease(g_CopyPipeline);
wgpuBindGroupRelease(g_CopyBindGroup);
g_frameBuffer = {};
g_frameBufferResolved = {};
g_depthBuffer = {};
wgpuSwapChainRelease(g_swapChain);
wgpuQueueRelease(g_queue);
g_BackendBinding.reset();
wgpuDeviceDestroy(g_device);
g_Instance.reset();
}
void resize_swapchain(uint32_t width, uint32_t height, bool force) {
if (!force && g_graphicsConfig.width == width && g_graphicsConfig.height == height) {
return;
}
g_graphicsConfig.width = width;
g_graphicsConfig.height = height;
wgpuSwapChainConfigure(g_swapChain, g_graphicsConfig.colorFormat, WGPUTextureUsage_RenderAttachment, width, height);
g_frameBuffer = create_render_texture(true);
g_frameBufferResolved = create_render_texture(false);
g_depthBuffer = create_depth_texture();
create_copy_bind_group();
}
} // namespace aurora::webgpu