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src/Cafe/HW/Latte/Core/LatteThread.cpp
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266
src/Cafe/HW/Latte/Core/LatteThread.cpp
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#include "Cafe/HW/Latte/ISA/RegDefines.h"
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#include "Cafe/OS/libs/gx2/GX2.h" // todo - remove dependency
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#include "Cafe/HW/Latte/Core/Latte.h"
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#include "Cafe/HW/Latte/Core/LatteDraw.h"
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#include "Cafe/HW/Latte/Core/LatteShader.h"
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#include "Cafe/HW/Latte/Core/LatteAsyncCommands.h"
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#include "Cafe/GameProfile/GameProfile.h"
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#include "gui/guiWrapper.h"
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#include "Cafe/HW/Latte/Core/LatteBufferCache.h"
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#include "Cafe/HW/Latte/Renderer/Renderer.h"
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#include "Cafe/HW/Latte/Core/LatteTexture.h"
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#include "util/helpers/helpers.h"
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#include <imgui.h>
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#include "config/ActiveSettings.h"
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#include "Cafe/CafeSystem.h"
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LatteGPUState_t LatteGPUState = {};
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std::atomic_bool sLatteThreadRunning = false;
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std::atomic_bool sLatteThreadFinishedInit = false;
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void LatteThread_Exit();
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void Latte_LoadInitialRegisters()
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{
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LatteGPUState.contextNew.CB_TARGET_MASK.set_MASK(0xFFFFFFFF);
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LatteGPUState.contextNew.VGT_MULTI_PRIM_IB_RESET_INDX.set_RESTART_INDEX(0xFFFFFFFF);
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LatteGPUState.contextRegister[Latte::REGADDR::PA_CL_CLIP_CNTL] = 0;
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*(float*)&LatteGPUState.contextRegister[mmDB_DEPTH_CLEAR] = 1.0f;
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}
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extern bool gx2WriteGatherInited;
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LatteTextureView* osScreenTVTex[2] = { nullptr };
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LatteTextureView* osScreenDRCTex[2] = { nullptr };
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LatteTextureView* LatteHandleOSScreen_getOrCreateScreenTex(MPTR physAddress, uint32 width, uint32 height, uint32 pitch)
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{
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LatteTextureView* texView = LatteTextureViewLookupCache::lookup(physAddress, width, height, 1, pitch, 0, 1, 0, 1, Latte::E_GX2SURFFMT::R8_G8_B8_A8_UNORM, Latte::E_DIM::DIM_2D);
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if (texView)
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return texView;
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return LatteTexture_CreateTexture(0, Latte::E_DIM::DIM_2D, physAddress, 0, Latte::E_GX2SURFFMT::R8_G8_B8_A8_UNORM, width, height, 1, pitch, 1, 0, Latte::E_HWTILEMODE::TM_LINEAR_ALIGNED, false);
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}
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void LatteHandleOSScreen_prepareTextures()
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{
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osScreenTVTex[0] = LatteHandleOSScreen_getOrCreateScreenTex(LatteGPUState.osScreen.screen[0].physPtr, 1280, 720, 1280);
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osScreenTVTex[1] = LatteHandleOSScreen_getOrCreateScreenTex(LatteGPUState.osScreen.screen[0].physPtr + 1280 * 720 * 4, 1280, 720, 1280);
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osScreenDRCTex[0] = LatteHandleOSScreen_getOrCreateScreenTex(LatteGPUState.osScreen.screen[1].physPtr, 854, 480, 0x380);
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osScreenDRCTex[1] = LatteHandleOSScreen_getOrCreateScreenTex(LatteGPUState.osScreen.screen[1].physPtr + 896 * 480 * 4, 854, 480, 0x380);
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}
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void LatteRenderTarget_copyToBackbuffer(LatteTextureView* textureView, bool isPadView);
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bool LatteHandleOSScreen_TV()
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{
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if (!LatteGPUState.osScreen.screen[0].isEnabled)
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return false;
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if (LatteGPUState.osScreen.screen[0].flipExecuteCount == LatteGPUState.osScreen.screen[0].flipRequestCount)
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return false;
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LatteHandleOSScreen_prepareTextures();
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sint32 bufferDisplayTV = (LatteGPUState.osScreen.screen[0].flipRequestCount & 1) ^ 1;
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sint32 bufferDisplayDRC = (LatteGPUState.osScreen.screen[1].flipRequestCount & 1) ^ 1;
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const uint32 bufferIndexTV = (bufferDisplayTV);
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const uint32 bufferIndexDRC = bufferDisplayDRC;
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g_renderer->texture_bindAndActivate(osScreenTVTex[bufferIndexTV], 0);
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LatteTexture_ReloadData(osScreenTVTex[bufferIndexTV]->baseTexture, 0);
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// TV screen
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LatteRenderTarget_copyToBackbuffer(osScreenTVTex[bufferIndexTV]->baseTexture->baseView, false);
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if (LatteGPUState.osScreen.screen[0].flipExecuteCount != LatteGPUState.osScreen.screen[0].flipRequestCount)
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LatteGPUState.osScreen.screen[0].flipExecuteCount = LatteGPUState.osScreen.screen[0].flipRequestCount;
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return true;
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}
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bool LatteHandleOSScreen_DRC()
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{
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if (!LatteGPUState.osScreen.screen[1].isEnabled)
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return false;
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if (LatteGPUState.osScreen.screen[1].flipExecuteCount == LatteGPUState.osScreen.screen[1].flipRequestCount)
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return false;
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LatteHandleOSScreen_prepareTextures();
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sint32 bufferDisplayDRC = (LatteGPUState.osScreen.screen[1].flipRequestCount & 1) ^ 1;
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const uint32 bufferIndexDRC = bufferDisplayDRC;
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g_renderer->texture_bindAndActivate(osScreenDRCTex[bufferIndexDRC], 0);
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LatteTexture_ReloadData(osScreenDRCTex[bufferIndexDRC]->baseTexture, 0);
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// GamePad screen
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LatteRenderTarget_copyToBackbuffer(osScreenDRCTex[bufferIndexDRC]->baseTexture->baseView, true);
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if (LatteGPUState.osScreen.screen[1].flipExecuteCount != LatteGPUState.osScreen.screen[1].flipRequestCount)
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LatteGPUState.osScreen.screen[1].flipExecuteCount = LatteGPUState.osScreen.screen[1].flipRequestCount;
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return true;
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}
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void LatteThread_HandleOSScreen()
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{
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bool swapTV = LatteHandleOSScreen_TV();
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bool swapDRC = LatteHandleOSScreen_DRC();
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if(swapTV || swapDRC)
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g_renderer->SwapBuffers(swapTV, swapDRC);
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}
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int Latte_ThreadEntry()
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{
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SetThreadName("LatteThread");
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sint32 w,h;
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gui_getWindowSize(&w,&h);
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// imgui
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ImGui::CreateContext();
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ImGuiIO& io = ImGui::GetIO();
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io.WantSaveIniSettings = false;
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io.IniFilename = nullptr;
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io.Fonts->AddFontDefault();
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// renderer
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g_renderer->Initialize();
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RendererOutputShader::InitializeStatic();
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io.DisplaySize = ImVec2((float)w, (float)h);
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LatteTiming_Init();
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LatteTexture_init();
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LatteTC_Init();
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LatteBufferCache_init(164 * 1024 * 1024);
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LatteQuery_Init();
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LatteSHRC_Init();
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LatteStreamout_InitCache();
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g_renderer->renderTarget_setViewport(0, 0, w, h, 0.0f, 1.0f);
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// enable GLSL gl_PointSize support
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// glEnable(GL_PROGRAM_POINT_SIZE); // breaks shader caching on AMD (as of 2018)
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LatteGPUState.glVendor = GLVENDOR_UNKNOWN;
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switch(g_renderer->GetVendor())
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{
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case GfxVendor::AMD:
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LatteGPUState.glVendor = GLVENDOR_AMD;
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break;
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case GfxVendor::IntelLegacy:
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LatteGPUState.glVendor = GLVENDOR_INTEL_LEGACY;
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break;
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case GfxVendor::IntelNoLegacy:
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LatteGPUState.glVendor = GLVENDOR_INTEL_NOLEGACY;
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break;
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case GfxVendor::Intel:
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LatteGPUState.glVendor = GLVENDOR_INTEL;
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break;
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case GfxVendor::Nvidia:
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LatteGPUState.glVendor = GLVENDOR_NVIDIA;
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break;
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default:
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break;
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}
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sLatteThreadFinishedInit = true;
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// register debug handler
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if (cafeLog_isLoggingFlagEnabled(LOG_TYPE_OPENGL))
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g_renderer->EnableDebugMode();
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// wait till a game is started
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while( true )
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{
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if( CafeSystem::IsTitleRunning() )
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break;
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g_renderer->DrawEmptyFrame(true);
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g_renderer->DrawEmptyFrame(false);
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gui_hasScreenshotRequest(); // keep the screenshot request queue empty
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std::this_thread::sleep_for(std::chrono::milliseconds(1000/60));
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}
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g_renderer->DrawEmptyFrame(true);
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// load/init shader cache file
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LatteShaderCache_load();
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// init registers
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Latte_LoadInitialRegisters();
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// let CPU thread know the GPU is done initializing
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g_isGPUInitFinished = true;
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// wait until CPU has called GX2Init()
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while (LatteGPUState.gx2InitCalled == 0)
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{
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std::this_thread::yield();
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std::this_thread::sleep_for(std::chrono::milliseconds(1));
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LatteThread_HandleOSScreen();
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if (!Latte_IsActive())
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LatteThread_Exit();
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}
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gxRingBufferReadPtr = gx2WriteGatherPipe.gxRingBuffer;
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LatteCP_ProcessRingbuffer();
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cemu_assert_debug(false); // should never reach
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return 0;
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}
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std::thread sLatteThread;
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std::mutex sLatteThreadStateMutex;
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// initializes GPU thread which in turn also activates graphic packs
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// does not return until the thread finished initialization
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void Latte_Start()
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{
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std::unique_lock _lock(sLatteThreadStateMutex);
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cemu_assert_debug(!sLatteThreadRunning);
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sLatteThreadRunning = true;
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sLatteThreadFinishedInit = false;
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sLatteThread = std::thread(Latte_ThreadEntry);
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// wait until initialized
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while (!sLatteThreadFinishedInit)
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{
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std::this_thread::sleep_for(std::chrono::milliseconds(1));
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}
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}
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void Latte_Stop()
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{
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std::unique_lock _lock(sLatteThreadStateMutex);
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sLatteThreadRunning = false;
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_lock.unlock();
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sLatteThread.join();
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}
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bool Latte_IsActive()
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{
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return sLatteThreadRunning;
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}
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void LatteThread_Exit()
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{
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if (g_renderer)
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g_renderer->Shutdown();
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// clean up texture cache
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LatteTC_UnloadAllTextures();
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// clean up runtime shader cache
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// todo
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// destroy renderer but make sure that g_renderer remains valid until the destructor has finished
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if (g_renderer)
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{
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Renderer* renderer = g_renderer.get();
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delete renderer;
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g_renderer.release();
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}
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// reset GPU7 state
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std::memset(&LatteGPUState, 0, sizeof(LatteGPUState));
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#if BOOST_OS_WINDOWS
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ExitThread(0);
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#else
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pthread_exit(nullptr);
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#endif
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cemu_assert_unimplemented();
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}
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