mirror of https://github.com/AxioDL/metaforce.git
121 lines
3.7 KiB
C++
121 lines
3.7 KiB
C++
#include "imgui.hpp"
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#include "gpu.hpp"
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#include "Runtime/ConsoleVariables/FileStoreManager.hpp"
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#include <SDL.h>
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#include <aurora/aurora.hpp>
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#include <aurora/imgui.hpp>
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#include <dawn/webgpu_cpp.h>
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#include "../extern/imgui/backends/imgui_impl_sdl.cpp"
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#include "../extern/imgui/backends/imgui_impl_wgpu.cpp"
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namespace aurora::imgui {
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using gpu::g_device;
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using gpu::g_queue;
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static float g_scale;
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static std::string g_imguiSettings{};
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static std::string g_imguiLog{};
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void create_context() noexcept {
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IMGUI_CHECKVERSION();
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ImGui::CreateContext();
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ImGuiIO& io = ImGui::GetIO();
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g_imguiSettings = std::string(metaforce::FileStoreManager::instance()->getStoreRoot()) + "/imgui.ini";
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g_imguiLog = std::string(metaforce::FileStoreManager::instance()->getStoreRoot()) + "/imgui.log";
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io.IniFilename = g_imguiSettings.c_str();
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io.LogFilename = g_imguiLog.c_str();
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}
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void initialize(SDL_Window* window) noexcept {
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ImGui_ImplSDL2_Init(window, nullptr);
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#ifdef __APPLE__
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// Disable MouseCanUseGlobalState for scaling purposes
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ImGui_ImplSDL2_GetBackendData()->MouseCanUseGlobalState = false;
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#endif
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ImGui_ImplWGPU_Init(g_device.Get(), 1, static_cast<WGPUTextureFormat>(gpu::g_graphicsConfig.colorFormat));
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}
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void shutdown() noexcept {
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ImGui_ImplWGPU_Shutdown();
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ImGui_ImplSDL2_Shutdown();
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ImGui::DestroyContext();
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}
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void process_event(const SDL_Event& event) noexcept {
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#ifdef __APPLE__
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if (event.type == SDL_MOUSEMOTION) {
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auto& io = ImGui::GetIO();
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// Scale up mouse coordinates
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io.AddMousePosEvent(static_cast<float>(event.motion.x) * g_scale,
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static_cast<float>(event.motion.y) * g_scale);
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return;
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}
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#endif
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ImGui_ImplSDL2_ProcessEvent(&event);
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}
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void new_frame(const WindowSize& size) noexcept {
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if (g_scale != size.scale) {
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if (g_scale > 0.f) {
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// TODO wgpu backend bug: doesn't clear bind groups on invalidate
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g_resources.ImageBindGroups.Clear();
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ImGui_ImplWGPU_CreateDeviceObjects();
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}
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g_scale = size.scale;
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}
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ImGui_ImplWGPU_NewFrame();
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ImGui_ImplSDL2_NewFrame();
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// Render at full DPI
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ImGui::GetIO().DisplaySize = {static_cast<float>(size.fb_width), static_cast<float>(size.fb_height)};
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ImGui::NewFrame();
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}
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void render(const wgpu::RenderPassEncoder& pass) noexcept {
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OPTICK_EVENT();
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ImGui::Render();
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auto* data = ImGui::GetDrawData();
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// io.DisplayFramebufferScale is informational; we're rendering at full DPI
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data->FramebufferScale = {1.f, 1.f};
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ImGui_ImplWGPU_RenderDrawData(data, pass.Get());
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}
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ImTextureID add_texture(uint32_t width, uint32_t height, ArrayRef<uint8_t> data) noexcept {
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const auto size = wgpu::Extent3D{
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.width = width,
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.height = height,
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};
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const auto textureDescriptor = wgpu::TextureDescriptor{
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.label = "imgui texture",
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.usage = wgpu::TextureUsage::TextureBinding | wgpu::TextureUsage::CopyDst,
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.size = size,
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.format = wgpu::TextureFormat::RGBA8Unorm,
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};
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const auto textureViewDescriptor = wgpu::TextureViewDescriptor{
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.label = "imgui texture view",
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.format = wgpu::TextureFormat::RGBA8Unorm,
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.dimension = wgpu::TextureViewDimension::e2D,
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.mipLevelCount = 1,
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.arrayLayerCount = 1,
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};
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auto texture = g_device.CreateTexture(&textureDescriptor);
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auto textureView = texture.CreateView(&textureViewDescriptor);
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{
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const auto dstView = wgpu::ImageCopyTexture{
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.texture = texture,
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};
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const auto dataLayout = wgpu::TextureDataLayout{
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.bytesPerRow = 4 * width,
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.rowsPerImage = height,
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};
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g_queue.WriteTexture(&dstView, data.data(), data.size(), &dataLayout, &size);
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}
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texture.Release(); // leak some memory!
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return textureView.Release();
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}
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} // namespace aurora::imgui
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