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Add initial imgui implementation

This commit is contained in:
Luke Street 2021-05-24 17:25:31 -04:00
parent 94f10bb002
commit 1a5ec8b569
16 changed files with 585 additions and 40 deletions
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3
.gitmodules vendored
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@ -58,3 +58,6 @@
path = extern/zeus
url = ../zeus.git
branch = master
[submodule "extern/imgui"]
path = extern/imgui
url = https://github.com/ocornut/imgui.git

1
CMakeLists.txt
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@ -396,6 +396,7 @@ add_subdirectory(extern/boo)
add_subdirectory(hecl/shaderc)
include(hecl/ApplicationTools.cmake)
add_subdirectory(Shaders)
add_subdirectory(imgui)
add_subdirectory(extern/libSquish)
add_subdirectory(extern/libpng)
add_subdirectory(extern/libjpeg-turbo)

93
Runtime/CMain.cpp
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@ -1,17 +1,21 @@
#include <string>
#include <string_view>
#include <iostream>
#include <hecl/Pipeline.hpp>
#include "boo/boo.hpp"
#include "logvisor/logvisor.hpp"
#include "ImGuiEngine.hpp"
#include "Runtime/Graphics/CGraphics.hpp"
#include "Runtime/MP1/MP1.hpp"
#include "cmake-build-debug-llvm/hecl/DataSpecRegistry.hpp"
#include "amuse/BooBackend.hpp"
#include "../version.h"
/* Static reference to dataspec additions
* (used by MSVC to definitively link DataSpecs) */
#include "DataSpecRegistry.hpp"
using namespace std::literals;
static logvisor::Module AthenaLog("Athena");
@ -104,10 +108,14 @@ static hecl::SystemString CPUFeatureString(const zeus::CPUInfo& cpuInf) {
}
struct WindowCallback : boo::IWindowCallback {
friend struct Application;
private:
bool m_fullscreenToggleRequested = false;
boo::SWindowRect m_lastRect;
bool m_rectDirty = false;
bool m_windowInvalid = false;
ImGuiWindowCallback m_imguiCallback;
void resized(const boo::SWindowRect& rect, bool sync) override {
m_lastRect = rect;
@ -115,11 +123,12 @@ struct WindowCallback : boo::IWindowCallback {
}
void mouseDown(const boo::SWindowCoord& coord, boo::EMouseButton button, boo::EModifierKey mods) override {
if (g_mainMP1) {
if (!ImGuiWindowCallback::m_mouseCaptured && g_mainMP1) {
if (MP1::CGameArchitectureSupport* as = g_mainMP1->GetArchSupport()) {
as->mouseDown(coord, button, mods);
}
}
m_imguiCallback.mouseDown(coord, button, mods);
}
void mouseUp(const boo::SWindowCoord& coord, boo::EMouseButton button, boo::EModifierKey mods) override {
@ -128,30 +137,38 @@ struct WindowCallback : boo::IWindowCallback {
as->mouseUp(coord, button, mods);
}
}
m_imguiCallback.mouseUp(coord, button, mods);
}
void mouseMove(const boo::SWindowCoord& coord) override {
if (g_mainMP1) {
if (!ImGuiWindowCallback::m_mouseCaptured && g_mainMP1) {
if (MP1::CGameArchitectureSupport* as = g_mainMP1->GetArchSupport()) {
as->mouseMove(coord);
}
}
m_imguiCallback.mouseMove(coord);
}
void mouseEnter(const boo::SWindowCoord& coord) override { m_imguiCallback.mouseEnter(coord); }
void mouseLeave(const boo::SWindowCoord& coord) override { m_imguiCallback.mouseLeave(coord); }
void scroll(const boo::SWindowCoord& coord, const boo::SScrollDelta& scroll) override {
if (g_mainMP1) {
if (!ImGuiWindowCallback::m_mouseCaptured && g_mainMP1) {
if (MP1::CGameArchitectureSupport* as = g_mainMP1->GetArchSupport()) {
as->scroll(coord, scroll);
}
}
m_imguiCallback.scroll(coord, scroll);
}
void charKeyDown(unsigned long charCode, boo::EModifierKey mods, bool isRepeat) override {
if (g_mainMP1) {
if (!ImGuiWindowCallback::m_keyboardCaptured && g_mainMP1) {
if (MP1::CGameArchitectureSupport* as = g_mainMP1->GetArchSupport()) {
as->charKeyDown(charCode, mods, isRepeat);
}
}
m_imguiCallback.charKeyDown(charCode, mods, isRepeat);
}
void charKeyUp(unsigned long charCode, boo::EModifierKey mods) override {
@ -160,17 +177,20 @@ struct WindowCallback : boo::IWindowCallback {
as->charKeyUp(charCode, mods);
}
}
m_imguiCallback.charKeyUp(charCode, mods);
}
void specialKeyDown(boo::ESpecialKey key, boo::EModifierKey mods, bool isRepeat) override {
if (g_mainMP1) {
if (!ImGuiWindowCallback::m_keyboardCaptured && g_mainMP1) {
if (MP1::CGameArchitectureSupport* as = g_mainMP1->GetArchSupport()) {
as->specialKeyDown(key, mods, isRepeat);
}
}
if (key == boo::ESpecialKey::Enter && True(mods & boo::EModifierKey::Alt))
if (key == boo::ESpecialKey::Enter && True(mods & boo::EModifierKey::Alt)) {
m_fullscreenToggleRequested = true;
}
m_imguiCallback.specialKeyDown(key, mods, isRepeat);
}
void specialKeyUp(boo::ESpecialKey key, boo::EModifierKey mods) override {
if (g_mainMP1) {
@ -178,12 +198,14 @@ struct WindowCallback : boo::IWindowCallback {
as->specialKeyUp(key, mods);
}
}
m_imguiCallback.specialKeyUp(key, mods);
}
void destroyed() override { m_windowInvalid = true; }
};
struct Application : boo::IApplicationCallback {
private:
std::shared_ptr<boo::IWindow> m_window;
WindowCallback m_windowCallback;
hecl::Runtime::FileStoreManager& m_fileMgr;
@ -201,6 +223,10 @@ struct Application : boo::IApplicationCallback {
std::atomic_bool m_running = {true};
bool m_noShaderWarmup = false;
bool m_firstFrame = true;
using delta_clock = std::chrono::high_resolution_clock;
std::chrono::time_point<delta_clock> m_prevFrameTime;
public:
Application(hecl::Runtime::FileStoreManager& fileMgr, hecl::CVarManager& cvarMgr, hecl::CVarCommons& cvarCmns)
: m_fileMgr(fileMgr), m_cvarManager(cvarMgr), m_cvarCommons(cvarCmns) {}
@ -216,12 +242,13 @@ public:
m_window->showWindow();
boo::SWindowRect rect = m_window->getWindowFrame();
m_window->getMainContextDataFactory()->commitTransaction([&](boo::IGraphicsDataFactory::Context& ctx) {
boo::IGraphicsDataFactory* gfxF = m_window->getMainContextDataFactory();
gfxF->commitTransaction([&](boo::IGraphicsDataFactory::Context& ctx) {
m_renderTex = ctx.newRenderTexture(rect.size[0], rect.size[1], boo::TextureClampMode::ClampToEdge, 3, 3);
return true;
} BooTrace);
m_pipelineConv = hecl::NewPipelineConverter(m_window->getMainContextDataFactory());
m_pipelineConv = hecl::NewPipelineConverter(gfxF);
hecl::conv = m_pipelineConv.get();
m_voiceEngine = boo::NewAudioVoiceEngine();
@ -258,6 +285,7 @@ public:
onAppIdle();
}
ImGuiEngine::Shutdown();
if (m_window) {
m_window->getCommandQueue()->stopRenderer();
}
@ -329,29 +357,60 @@ public:
m_windowCallback.m_fullscreenToggleRequested = false;
}
boo::IGraphicsDataFactory* gfxF = m_window->getMainContextDataFactory();
if (!g_mainMP1) {
g_mainMP1.emplace(nullptr, nullptr, m_window->getMainContextDataFactory(), gfxQ, m_renderTex.get());
g_mainMP1.emplace(nullptr, nullptr, gfxF, gfxQ, m_renderTex.get());
g_mainMP1->Init(m_fileMgr, &m_cvarManager, m_window.get(), m_voiceEngine.get(), *m_amuseAllocWrapper);
if (!m_noShaderWarmup) {
g_mainMP1->WarmupShaders();
}
ImGuiEngine::Initialize(gfxF, m_window->getWindowFrame());
}
if (g_mainMP1->Proc()) {
float dt = 1 / 60.f;
float realDt = dt;
auto now = delta_clock::now();
if (m_firstFrame) {
m_firstFrame = false;
} else {
using delta_duration = std::chrono::duration<float, std::ratio<1>>;
realDt = std::chrono::duration_cast<delta_duration>(now - m_prevFrameTime).count();
if (m_cvarCommons.m_variableDt->toBoolean()) {
dt = std::min(realDt, 1 / 30.f);
}
}
m_prevFrameTime = now;
ImGuiEngine::Begin(realDt);
if (g_mainMP1->Proc(dt)) {
m_running.store(false);
return;
}
gfxQ->setRenderTarget(m_renderTex);
{
OPTICK_EVENT("Draw");
if (g_Renderer)
gfxQ->setRenderTarget(m_renderTex);
if (g_Renderer != nullptr) {
g_Renderer->BeginScene();
}
g_mainMP1->Draw();
if (g_Renderer)
if (g_Renderer != nullptr) {
g_Renderer->EndScene();
}
}
{
OPTICK_EVENT("ImGui Draw");
ImGuiEngine::End();
ImGuiEngine::Draw(gfxQ);
}
{
OPTICK_EVENT("Execute");
gfxQ->execute();
}
gfxQ->resolveDisplay(m_renderTex);
if (g_ResFactory != nullptr) {
@ -380,7 +439,9 @@ public:
[[nodiscard]] bool getDeepColor() const { return m_cvarCommons.getDeepColor(); }
[[nodiscard]] int64_t getTargetFrameTime() const { return m_cvarCommons.getVariableFrameTime() ? 0 : 1000000000L / 60; }
[[nodiscard]] int64_t getTargetFrameTime() const {
return m_cvarCommons.getVariableFrameTime() ? 0 : 1000000000L / 60;
}
};
} // namespace metaforce

2
Runtime/CMakeLists.txt
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@ -201,7 +201,7 @@ elseif(UNIX)
endif()
add_executable(metaforce CMain.cpp ${PLAT_SRCS})
target_link_libraries(metaforce PUBLIC RuntimeCommon ${PLAT_LIBS})
target_link_libraries(metaforce PUBLIC RuntimeCommon ${PLAT_LIBS} imgui)
if(COMMAND add_sanitizers)
add_sanitizers(metaforce)

2
Runtime/IMain.hpp
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@ -36,7 +36,7 @@ public:
virtual void Init(const hecl::Runtime::FileStoreManager& storeMgr, hecl::CVarManager* cvarMgr, boo::IWindow* window,
boo::IAudioVoiceEngine* voiceEngine, amuse::IBackendVoiceAllocator& backend) = 0;
virtual void Draw() = 0;
virtual bool Proc() = 0;
virtual bool Proc(float dt) = 0;
virtual void Shutdown() = 0;
virtual boo::IWindow* GetMainWindow() const = 0;
virtual EFlowState GetFlowState() const = 0;

14
Runtime/MP1/MP1.cpp
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@ -897,7 +897,7 @@ void CMain::WarmupShaders() {
WarmupLog.report(logvisor::Info, FMT_STRING("Began warmup of {} objects"), m_warmupTags.size());
}
bool CMain::Proc() {
bool CMain::Proc(float dt) {
CRandom16::ResetNumNextCalls();
// Warmup cycle overrides update
if (m_warmupTags.size())
@ -907,18 +907,6 @@ bool CMain::Proc() {
m_loadedPersistentResources = true;
}
float dt = 1 / 60.f;
if (m_cvarCommons->m_variableDt->toBoolean()) {
auto now = delta_clock::now();
if (m_firstFrame) {
m_firstFrame = false;
} else {
using delta_duration = std::chrono::duration<float, std::ratio<1>>;
dt = std::min(std::chrono::duration_cast<delta_duration>(now - m_prevFrameTime).count(), 1 / 30.f);
}
m_prevFrameTime = now;
}
m_console->proc();
if (!m_console->isOpen()) {
CGBASupport::GlobalPoll();

6
Runtime/MP1/MP1.hpp
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@ -253,10 +253,6 @@ private:
bool m_needsWarmupClear = false;
bool m_loadedPersistentResources = false;
bool m_doQuit = false;
bool m_firstFrame = true;
using delta_clock = std::chrono::high_resolution_clock;
std::chrono::time_point<delta_clock> m_prevFrameTime;
DataSpec::MetaforceVersionInfo m_version;
void InitializeSubsystems();
@ -286,7 +282,7 @@ public:
void Init(const hecl::Runtime::FileStoreManager& storeMgr, hecl::CVarManager* cvarManager, boo::IWindow* window,
boo::IAudioVoiceEngine* voiceEngine, amuse::IBackendVoiceAllocator& backend) override;
void WarmupShaders() override;
bool Proc() override;
bool Proc(float dt) override;
void Draw() override;
void Shutdown() override;
boo::IWindow* GetMainWindow() const override;

2
extern/boo vendored

@ -1 +1 @@
Subproject commit 55deba091336b787d405a8747bff9757713e7960
Subproject commit d13fbda0c0ef0a832ed31ab4a7e91a23c6167f52

1
hecl/lib/CMakeLists.txt
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@ -40,6 +40,7 @@ set(HECL_HEADERS
../include/hecl/MathExtras.hpp
../include/hecl/UniformBufferPool.hpp
../include/hecl/VertexBufferPool.hpp
../include/hecl/IndexBufferPool.hpp
../include/hecl/PipelineBase.hpp
../include/hecl/Pipeline.hpp
../include/hecl/Compilers.hpp)

7
hecl/shaderc/shaderc.cpp
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@ -537,6 +537,9 @@ bool Compiler::compileFile(SystemStringView file, std::string_view baseName,
fmt::print(out.second, FMT_STRING("static const boo::VertexElementDescriptor {}_vtxfmtelems[] = {{\n"), shaderName);
for (const auto& attr : shaderAttributes) {
switch (attr.first & boo::VertexSemantic::SemanticMask) {
case boo::VertexSemantic::Position2:
SemanticOut(out.second, attr, FMT_STRING("{{boo::VertexSemantic::Position2{}, {}}},\n"));
break;
case boo::VertexSemantic::Position3:
SemanticOut(out.second, attr, FMT_STRING("{{boo::VertexSemantic::Position3{}, {}}},\n"));
break;
@ -611,7 +614,9 @@ bool Compiler::compileFile(SystemStringView file, std::string_view baseName,
boo::VertexSemantic orsem = inst ? boo::VertexSemantic::Instanced : boo::VertexSemantic::None;
int idxNum = int(strtoul(idx.c_str(), nullptr, 10));
std::transform(semantic.begin(), semantic.end(), semantic.begin(), ::tolower);
if (semantic == "position3")
if (semantic == "position2")
shaderAttributes.push_back(std::make_pair(boo::VertexSemantic::Position2 | orsem, idxNum));
else if (semantic == "position3")
shaderAttributes.push_back(std::make_pair(boo::VertexSemantic::Position3 | orsem, idxNum));
else if (semantic == "position4")
shaderAttributes.push_back(std::make_pair(boo::VertexSemantic::Position4 | orsem, idxNum));

16
imgui/CMakeLists.txt Normal file
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@ -0,0 +1,16 @@
add_library(imgui
../extern/imgui/imgui.cpp
../extern/imgui/imgui_demo.cpp
../extern/imgui/imgui_draw.cpp
../extern/imgui/imgui_tables.cpp
../extern/imgui/imgui_widgets.cpp
../extern/imgui/backends/imgui_impl_vulkan.cpp
ImGuiEngine.cpp
ImGuiEngine.hpp
)
target_include_directories(imgui PUBLIC ../extern/imgui ${CMAKE_CURRENT_SOURCE_DIR})
target_compile_definitions(imgui PUBLIC IMGUI_USER_CONFIG="imconfig_user.h")
target_link_libraries(imgui PRIVATE boo hecl-light RetroDataSpec)
add_shader(ImguiShader)
target_link_libraries(shader_ImguiShader PRIVATE hecl-light)

286
imgui/ImGuiEngine.cpp Normal file
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@ -0,0 +1,286 @@
#include "ImGuiEngine.hpp"
#include "hecl/Pipeline.hpp"
#include "hecl/VertexBufferPool.hpp"
#include <zeus/CMatrix4f.hpp>
namespace metaforce {
static logvisor::Module Log{"ImGuiEngine"};
struct ImGuiEngine::Input ImGuiEngine::Input;
static boo::IGraphicsDataFactory* m_factory;
static boo::ObjToken<boo::IShaderPipeline> ShaderPipeline;
static boo::ObjToken<boo::IGraphicsBufferD> VertexBuffer;
static boo::ObjToken<boo::IGraphicsBufferD> IndexBuffer;
static boo::ObjToken<boo::IGraphicsBufferD> UniformBuffer;
static boo::ObjToken<boo::IShaderDataBinding> ShaderDataBinding;
static boo::ObjToken<boo::ITextureS> ImGuiAtlas;
static boo::SWindowRect WindowRect;
struct Uniform {
zeus::CMatrix4f xf;
};
static size_t VertexBufferSize = 5000;
static size_t IndexBufferSize = 5000;
void ImGuiEngine::Initialize(boo::IGraphicsDataFactory* factory, const boo::SWindowRect& rect) {
m_factory = factory;
WindowRect = rect;
ImGui::CreateContext();
ImGuiIO& io = ImGui::GetIO();
io.BackendFlags |= ImGuiBackendFlags_RendererHasVtxOffset;
io.KeyMap[ImGuiKey_Tab] = 256 + static_cast<int>(boo::ESpecialKey::Tab);
io.KeyMap[ImGuiKey_LeftArrow] = 256 + static_cast<int>(boo::ESpecialKey::Left);
io.KeyMap[ImGuiKey_RightArrow] = 256 + static_cast<int>(boo::ESpecialKey::Right);
io.KeyMap[ImGuiKey_UpArrow] = 256 + static_cast<int>(boo::ESpecialKey::Up);
io.KeyMap[ImGuiKey_DownArrow] = 256 + static_cast<int>(boo::ESpecialKey::Down);
io.KeyMap[ImGuiKey_PageUp] = 256 + static_cast<int>(boo::ESpecialKey::PgUp);
io.KeyMap[ImGuiKey_PageDown] = 256 + static_cast<int>(boo::ESpecialKey::PgDown);
io.KeyMap[ImGuiKey_Home] = 256 + static_cast<int>(boo::ESpecialKey::Home);
io.KeyMap[ImGuiKey_End] = 256 + static_cast<int>(boo::ESpecialKey::End);
io.KeyMap[ImGuiKey_Insert] = 256 + static_cast<int>(boo::ESpecialKey::Insert);
io.KeyMap[ImGuiKey_Delete] = 256 + static_cast<int>(boo::ESpecialKey::Delete);
io.KeyMap[ImGuiKey_Backspace] = 256 + static_cast<int>(boo::ESpecialKey::Backspace);
io.KeyMap[ImGuiKey_Space] = ' ';
io.KeyMap[ImGuiKey_Enter] = 256 + static_cast<int>(boo::ESpecialKey::Enter);
io.KeyMap[ImGuiKey_Escape] = 256 + static_cast<int>(boo::ESpecialKey::Esc);
io.KeyMap[ImGuiKey_A] = 'A'; // for text edit CTRL+A: select all
io.KeyMap[ImGuiKey_C] = 'C'; // for text edit CTRL+C: copy
io.KeyMap[ImGuiKey_V] = 'V'; // for text edit CTRL+V: paste
io.KeyMap[ImGuiKey_X] = 'X'; // for text edit CTRL+X: cut
io.KeyMap[ImGuiKey_Y] = 'Y'; // for text edit CTRL+Y: redo
io.KeyMap[ImGuiKey_Z] = 'Z'; // for text edit CTRL+Z: undo
int width = 0;
int height = 0;
unsigned char* pixels = nullptr;
io.Fonts->GetTexDataAsRGBA32(&pixels, &width, &height);
factory->commitTransaction([&](boo::IGraphicsDataFactory::Context& ctx) {
ShaderPipeline = hecl::conv->convert(Shader_ImguiShader{});
ImGuiAtlas = ctx.newStaticTexture(width, height, 1, boo::TextureFormat::RGBA8, boo::TextureClampMode::ClampToEdge,
pixels, width * height * 4);
VertexBuffer = ctx.newDynamicBuffer(boo::BufferUse::Vertex, sizeof(ImDrawVert), VertexBufferSize);
IndexBuffer = ctx.newDynamicBuffer(boo::BufferUse::Index, sizeof(ImDrawIdx), IndexBufferSize);
UniformBuffer = ctx.newDynamicBuffer(boo::BufferUse::Uniform, sizeof(Uniform), 1);
BuildShaderDataBinding(ctx);
return true;
} BooTrace);
io.Fonts->SetTexID(ImGuiAtlas.get());
}
void ImGuiEngine::Shutdown() {
ImGui::DestroyContext();
ShaderPipeline.reset();
}
void ImGuiEngine::Begin(float dt) {
ImGuiIO& io = ImGui::GetIO();
io.DeltaTime = dt;
io.DisplaySize.x = WindowRect.size[0];
io.DisplaySize.y = WindowRect.size[1];
// TODO
// io.DisplayFramebufferScale = ImVec2{1.f, 1.f};
if (Input.m_mouseIn) {
io.MousePos = ImVec2{static_cast<float>(Input.m_mousePos.pixel[0]),
static_cast<float>(WindowRect.size[1] - Input.m_mousePos.pixel[1])};
} else {
io.MousePos = ImVec2{-FLT_MAX, -FLT_MAX};
}
memcpy(io.MouseDown, Input.m_mouseButtons.data(), sizeof(io.MouseDown));
io.MouseWheel = static_cast<float>(Input.m_scrollDelta.delta[1]);
io.MouseWheelH = static_cast<float>(Input.m_scrollDelta.delta[0]);
Input.m_scrollDelta.zeroOut();
io.KeyCtrl = True(Input.m_modifiers & boo::EModifierKey::Ctrl);
io.KeyShift = True(Input.m_modifiers & boo::EModifierKey::Shift);
io.KeyAlt = True(Input.m_modifiers & boo::EModifierKey::Alt);
io.KeySuper = True(Input.m_modifiers & boo::EModifierKey::Command);
memcpy(io.KeysDown, Input.m_keys.data(), sizeof(io.KeysDown));
for (const auto c : ImGuiEngine::Input.m_charCodes) {
io.AddInputCharacter(c);
}
ImGuiEngine::Input.m_charCodes.clear();
ImGuiWindowCallback::m_mouseCaptured = io.WantCaptureMouse;
ImGuiWindowCallback::m_keyboardCaptured = io.WantCaptureKeyboard;
ImGui::NewFrame();
ImGui::ShowDemoWindow();
}
void ImGuiEngine::End() {
ImGui::EndFrame();
ImGui::Render();
ImDrawData* drawData = ImGui::GetDrawData();
float L = drawData->DisplayPos.x;
float R = drawData->DisplayPos.x + drawData->DisplaySize.x;
float T = drawData->DisplayPos.y;
float B = drawData->DisplayPos.y + drawData->DisplaySize.y;
float N = 0.f;
float F = 1.f;
zeus::CMatrix4f projXf = zeus::CMatrix4f{
zeus::CVector4f{2.0f / (R - L), 0.0f, 0.0f, 0.0f},
zeus::CVector4f{0.0f, 2.0f / (T - B), 0.0f, 0.0f},
zeus::CVector4f{0.0f, 0.0f, 1 / (F - N), 0.0f},
zeus::CVector4f{(R + L) / (L - R), (T + B) / (B - T), N / (F - N), 1.0f},
};
m_factory->commitTransaction([&](boo::IGraphicsDataFactory::Context& ctx) {
bool rebind = false;
if (drawData->TotalIdxCount > IndexBufferSize) {
Log.report(logvisor::Info, FMT_STRING(_SYS_STR("Resizing index buffer from {} to {}")), IndexBufferSize,
drawData->TotalIdxCount);
IndexBuffer = ctx.newDynamicBuffer(boo::BufferUse::Index, sizeof(ImDrawIdx), drawData->TotalIdxCount);
IndexBufferSize = drawData->TotalIdxCount;
rebind = true;
}
if (drawData->TotalVtxCount > VertexBufferSize) {
Log.report(logvisor::Info, FMT_STRING(_SYS_STR("Resizing vertex buffer from {} to {}")), VertexBufferSize,
drawData->TotalVtxCount);
VertexBuffer = ctx.newDynamicBuffer(boo::BufferUse::Vertex, sizeof(ImDrawVert), drawData->TotalVtxCount);
VertexBufferSize = drawData->TotalVtxCount;
rebind = true;
}
if (rebind) {
BuildShaderDataBinding(ctx);
}
UniformBuffer->load(&projXf, sizeof(Uniform));
auto* vtxBuf = static_cast<ImDrawVert*>(VertexBuffer->map(drawData->TotalVtxCount * sizeof(ImDrawVert)));
auto* idxBuf = static_cast<ImDrawIdx*>(IndexBuffer->map(drawData->TotalIdxCount * sizeof(ImDrawIdx)));
for (int i = 0; i < drawData->CmdListsCount; ++i) {
const auto* cmdList = drawData->CmdLists[i];
int vtxBufferSz = cmdList->VtxBuffer.size();
int idxBufferSz = cmdList->IdxBuffer.size();
memcpy(vtxBuf, cmdList->VtxBuffer.begin(), vtxBufferSz * sizeof(ImDrawVert));
memcpy(idxBuf, cmdList->IdxBuffer.begin(), idxBufferSz * sizeof(ImDrawIdx));
vtxBuf += vtxBufferSz;
idxBuf += idxBufferSz;
}
VertexBuffer->unmap();
IndexBuffer->unmap();
return true;
} BooTrace);
}
void ImGuiEngine::Draw(boo::IGraphicsCommandQueue* gfxQ) {
ImDrawData* drawData = ImGui::GetDrawData();
gfxQ->setShaderDataBinding(ShaderDataBinding);
boo::SWindowRect viewportRect = WindowRect;
int viewportHeight = viewportRect.size[1];
viewportRect.location = {0, 0};
if (m_factory->platform() == boo::IGraphicsDataFactory::Platform::Vulkan) {
viewportRect.location[1] = viewportHeight;
viewportRect.size[1] = -viewportHeight;
}
gfxQ->setViewport(viewportRect);
size_t idxOffset = 0;
size_t vtxOffset = 0;
for (int i = 0; i < drawData->CmdListsCount; ++i) {
const auto* cmdList = drawData->CmdLists[i];
for (const auto& drawCmd : cmdList->CmdBuffer) {
if (drawCmd.UserCallback != nullptr) {
drawCmd.UserCallback(cmdList, &drawCmd);
continue;
}
ImVec2 pos = drawData->DisplayPos;
int clipX = static_cast<int>(drawCmd.ClipRect.x - pos.x);
int clipY = static_cast<int>(drawCmd.ClipRect.y - pos.y);
int clipW = static_cast<int>(drawCmd.ClipRect.z - pos.x) - clipX;
int clipH = static_cast<int>(drawCmd.ClipRect.w - pos.y) - clipY;
boo::SWindowRect clipRect{clipX, clipY, clipW, clipH};
if (m_factory->platform() == boo::IGraphicsDataFactory::Platform::Vulkan) {
clipRect.location[1] = viewportHeight - clipRect.location[1] - clipRect.size[1];
}
gfxQ->setScissor(clipRect);
gfxQ->drawIndexed(idxOffset + drawCmd.IdxOffset, drawCmd.ElemCount, vtxOffset + drawCmd.VtxOffset);
}
idxOffset += cmdList->IdxBuffer.size();
vtxOffset += cmdList->VtxBuffer.size();
}
}
void ImGuiEngine::BuildShaderDataBinding(boo::IGraphicsDataFactory::Context& ctx) {
boo::ObjToken<boo::IGraphicsBuffer> uniforms[] = {UniformBuffer.get()};
boo::PipelineStage unistages[] = {boo::PipelineStage::Vertex};
size_t unioffs[] = {0};
size_t unisizes[] = {sizeof(Uniform)};
boo::ObjToken<boo::ITexture> texs[] = {ImGuiAtlas.get()};
ShaderDataBinding = ctx.newShaderDataBinding(ShaderPipeline, VertexBuffer.get(), nullptr, IndexBuffer.get(), 1,
uniforms, unistages, unioffs, unisizes, 1, texs, nullptr, nullptr);
}
bool ImGuiWindowCallback::m_mouseCaptured = false;
bool ImGuiWindowCallback::m_keyboardCaptured = false;
void ImGuiWindowCallback::mouseDown(const boo::SWindowCoord& coord, boo::EMouseButton button, boo::EModifierKey mods) {
ImGuiEngine::Input.m_mousePos = coord;
if (button != boo::EMouseButton::None) {
ImGuiEngine::Input.m_mouseButtons[static_cast<size_t>(button) - 1] = true;
}
ImGuiEngine::Input.m_modifiers = mods;
}
void ImGuiWindowCallback::mouseUp(const boo::SWindowCoord& coord, boo::EMouseButton button, boo::EModifierKey mods) {
ImGuiEngine::Input.m_mousePos = coord;
if (button != boo::EMouseButton::None) {
ImGuiEngine::Input.m_mouseButtons[static_cast<size_t>(button) - 1] = false;
}
ImGuiEngine::Input.m_modifiers = mods;
}
void ImGuiWindowCallback::mouseMove(const boo::SWindowCoord& coord) { ImGuiEngine::Input.m_mousePos = coord; }
void ImGuiWindowCallback::mouseEnter(const boo::SWindowCoord& coord) {
ImGuiEngine::Input.m_mouseIn = true;
ImGuiEngine::Input.m_mousePos = coord;
}
void ImGuiWindowCallback::mouseLeave(const boo::SWindowCoord& coord) {
ImGuiEngine::Input.m_mouseIn = false;
ImGuiEngine::Input.m_mousePos = coord;
}
void ImGuiWindowCallback::scroll(const boo::SWindowCoord& coord, const boo::SScrollDelta& scroll) {
ImGuiEngine::Input.m_mousePos = coord;
ImGuiEngine::Input.m_scrollDelta += scroll;
}
void ImGuiWindowCallback::charKeyDown(unsigned long charCode, boo::EModifierKey mods, bool isRepeat) {
if (charCode < 256) {
ImGuiEngine::Input.m_keys[charCode] = true;
}
ImGuiEngine::Input.m_charCodes.push_back(charCode);
ImGuiEngine::Input.m_modifiers = mods;
}
void ImGuiWindowCallback::charKeyUp(unsigned long charCode, boo::EModifierKey mods) {
if (charCode < 256) {
ImGuiEngine::Input.m_keys[charCode] = false;
}
ImGuiEngine::Input.m_modifiers = mods;
}
void ImGuiWindowCallback::specialKeyDown(boo::ESpecialKey key, boo::EModifierKey mods, bool isRepeat) {
ImGuiEngine::Input.m_keys[256 + static_cast<int>(key)] = true;
ImGuiEngine::Input.m_modifiers = mods;
}
void ImGuiWindowCallback::specialKeyUp(boo::ESpecialKey key, boo::EModifierKey mods) {
ImGuiEngine::Input.m_keys[256 + static_cast<int>(key)] = false;
ImGuiEngine::Input.m_modifiers = mods;
}
void ImGuiWindowCallback::resized(const boo::SWindowRect& rect, bool sync) { WindowRect = rect; }
} // namespace metaforce

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#pragma once
#include "imgui.h"
#include <boo/IWindow.hpp>
#include <boo/graphicsdev/IGraphicsDataFactory.hpp>
namespace metaforce {
class ImGuiEngine {
public:
static struct Input {
boo::SWindowCoord m_mousePos{};
std::array<bool, 5> m_mouseButtons{};
boo::SScrollDelta m_scrollDelta{};
boo::EModifierKey m_modifiers{};
std::array<bool, 512> m_keys{};
std::vector<unsigned long> m_charCodes{};
bool m_mouseIn = true;
} Input;
static void Initialize(boo::IGraphicsDataFactory* factory, const boo::SWindowRect &rect);
static void Shutdown();
static void Begin(float dt);
static void End();
static void Draw(boo::IGraphicsCommandQueue* gfxQ);
private:
static void BuildShaderDataBinding(boo::IGraphicsDataFactory::Context& ctx);
};
struct ImGuiWindowCallback : boo::IWindowCallback {
static bool m_mouseCaptured;
static bool m_keyboardCaptured;
void mouseDown(const boo::SWindowCoord& coord, boo::EMouseButton button, boo::EModifierKey mods) override;
void mouseUp(const boo::SWindowCoord& coord, boo::EMouseButton button, boo::EModifierKey mods) override;
void mouseMove(const boo::SWindowCoord& coord) override;
void mouseEnter(const boo::SWindowCoord& coord) override;
void mouseLeave(const boo::SWindowCoord& coord) override;
void scroll(const boo::SWindowCoord& coord, const boo::SScrollDelta& scroll) override;
void charKeyDown(unsigned long charCode, boo::EModifierKey mods, bool isRepeat) override;
void charKeyUp(unsigned long charCode, boo::EModifierKey mods) override;
void specialKeyDown(boo::ESpecialKey key, boo::EModifierKey mods, bool isRepeat) override;
void specialKeyUp(boo::ESpecialKey key, boo::EModifierKey mods) override;
void resized(const boo::SWindowRect &rect, bool sync) override;
};
} // namespace metaforce

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imgui/ImguiShader.shader Normal file
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#shader ImguiShader
#attribute position2
#attribute uv2
#attribute colorunorm
#srcfac srcalpha
#dstfac invsrcalpha
#primitive triangles
#depthtest none
#depthwrite false
#culling none
#vertex glsl
layout (location = 0) in vec2 pos;
layout (location = 1) in vec2 uv;
layout (location = 2) in vec4 color;
UBINDING0 uniform ImguiShaderUniform
{
mat4 xf;
};
struct VertToFrag
{
vec2 uv;
vec4 color;
};
SBINDING(0) out VertToFrag vtf;
void main()
{
vtf.uv = uv;
vtf.color = color;
gl_Position = xf * vec4(pos.xy,0,1);
}
#fragment glsl
struct VertToFrag
{
vec2 uv;
vec4 color;
};
SBINDING(0) in VertToFrag vtf;
layout (location = 0) out vec4 colorOut;
TBINDING0 uniform sampler2D tex;
void main()
{
colorOut = vtf.color * texture(tex, vtf.uv.st);
}
#vertex hlsl
cbuffer ImguiShaderUniform : register(b0)
{
float4x4 xf;
};
struct VertData
{
float2 pos : POSITION;
float2 uv : TEXCOORD0;
float4 col : COLOR0;
};
struct VertToFrag
{
float4 pos : SV_POSITION;
float2 uv : TEXCOORD0;
float4 col : COLOR0;
};
VertToFrag main(in VS_INPUT v)
{
VertToFrag vtf;
vtf.pos = mul(xf, float4(v.pos.xy, 0.f, 1.f));
vtf.col = v.col;
vtf.uv = v.uv;
return vtf;
}
#fragment hlsl
struct VertToFrag
{
float4 pos : SV_POSITION;
float2 uv : TEXCOORD0;
float4 col : COLOR0;
};
SamplerState samp : register(s0);
Texture2D tex0 : register(t0);
float4 main(in VertToFrag vtf) : SV_Target0
{
return vtf.col * tex0.Sample(samp, vtf.uv);
}
#vertex metal
struct ImguiShaderUniform {
float4x4 xf;
};
struct VertexIn {
float2 position [[attribute(0)]];
float2 texCoords [[attribute(1)]];
uchar4 color [[attribute(2)]];
};
struct VertToFrag {
float4 position [[position]];
float2 texCoords;
float4 color;
};
vertex VertToFrag vmain(VertexIn v [[stage_in]],
constant ImguiShaderUniform& u [[buffer(2)]]) {
VertToFrag vtf;
vtf.position = u.xf * float4(v.position, 0, 1);
vtf.texCoords = v.texCoords;
vtf.color = float4(v.color) / float4(255.0);
return vtf;
}
#fragment metal
struct VertToFrag {
float4 position [[position]];
float2 texCoords;
float4 color;
};
fragment half4 fmain(VertToFrag vtf [[stage_in]],
texture2d<half, access::sample> tex [[texture(0)]]) {
constexpr sampler linearSampler(coord::normalized, min_filter::linear, mag_filter::linear, mip_filter::linear);
half4 texColor = tex.sample(linearSampler, vtf.texCoords);
return half4(vtf.color) * texColor;
}

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imgui/imconfig_user.h Normal file
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#include <cstdint>
#define IMGUI_DISABLE_OBSOLETE_FUNCTIONS
// Use 32-bit index type for boo
#define ImDrawIdx uint32_t