393 lines
12 KiB
C++
393 lines
12 KiB
C++
#include "DeckLinkDisplayMode.h"
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#include "OpenGLComposite.h"
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#include "GLExtensions.h"
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#include "GlRenderConstants.h"
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#include "PngScreenshotWriter.h"
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#include "RenderEngine.h"
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#include "RuntimeCoordinator.h"
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#include "RuntimeEventDispatcher.h"
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#include "RuntimeParameterUtils.h"
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#include "RuntimeServiceLiveBridge.h"
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#include "RuntimeServices.h"
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#include "RuntimeSnapshotProvider.h"
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#include "RuntimeStore.h"
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#include "RuntimeUpdateController.h"
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#include "ShaderBuildQueue.h"
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#include "VideoBackend.h"
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#include <algorithm>
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#include <cctype>
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#include <chrono>
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#include <cmath>
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#include <ctime>
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#include <filesystem>
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#include <iomanip>
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#include <memory>
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#include <set>
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#include <sstream>
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#include <string>
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#include <vector>
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namespace
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{
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}
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OpenGLComposite::OpenGLComposite(HWND hWnd, HDC hDC, HGLRC hRC) :
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hGLWnd(hWnd), hGLDC(hDC), hGLRC(hRC),
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mScreenshotRequested(false)
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{
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InitializeCriticalSection(&pMutex);
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mRuntimeStore = std::make_unique<RuntimeStore>();
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mRuntimeEventDispatcher = std::make_unique<RuntimeEventDispatcher>();
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mRuntimeSnapshotProvider = std::make_unique<RuntimeSnapshotProvider>(mRuntimeStore->GetRenderSnapshotBuilder(), *mRuntimeEventDispatcher);
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mRuntimeCoordinator = std::make_unique<RuntimeCoordinator>(*mRuntimeStore, *mRuntimeEventDispatcher);
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mRenderEngine = std::make_unique<RenderEngine>(
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*mRuntimeSnapshotProvider,
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mRuntimeStore->GetHealthTelemetry(),
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pMutex,
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hGLDC,
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hGLRC,
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[this]() { renderEffect(); },
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[this]() { ProcessScreenshotRequest(); },
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[this]() { paintGL(false); });
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mVideoBackend = std::make_unique<VideoBackend>(*mRenderEngine, mRuntimeStore->GetHealthTelemetry(), *mRuntimeEventDispatcher);
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mShaderBuildQueue = std::make_unique<ShaderBuildQueue>(*mRuntimeSnapshotProvider, *mRuntimeEventDispatcher);
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mRuntimeServices = std::make_unique<RuntimeServices>(*mRuntimeEventDispatcher);
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mRuntimeUpdateController = std::make_unique<RuntimeUpdateController>(
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*mRuntimeStore,
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*mRuntimeCoordinator,
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*mRuntimeEventDispatcher,
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*mRuntimeServices,
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*mRenderEngine,
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*mShaderBuildQueue,
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*mVideoBackend);
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}
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OpenGLComposite::~OpenGLComposite()
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{
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if (mRuntimeServices)
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mRuntimeServices->Stop();
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if (mShaderBuildQueue)
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mShaderBuildQueue->Stop();
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if (mVideoBackend)
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mVideoBackend->ReleaseResources();
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DeleteCriticalSection(&pMutex);
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}
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bool OpenGLComposite::InitDeckLink()
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{
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return InitVideoIO();
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}
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bool OpenGLComposite::InitVideoIO()
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{
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VideoFormatSelection videoModes;
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std::string initFailureReason;
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if (mRuntimeStore && mRuntimeStore->GetRuntimeRepositoryRoot().empty())
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{
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std::string runtimeError;
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if (!mRuntimeStore->InitializeStore(runtimeError))
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{
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MessageBoxA(NULL, runtimeError.c_str(), "Runtime host failed to initialize", MB_OK);
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return false;
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}
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}
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if (mRuntimeStore)
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{
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if (!ResolveConfiguredVideoFormats(
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mRuntimeStore->GetConfiguredInputVideoFormat(),
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mRuntimeStore->GetConfiguredInputFrameRate(),
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mRuntimeStore->GetConfiguredOutputVideoFormat(),
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mRuntimeStore->GetConfiguredOutputFrameRate(),
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videoModes,
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initFailureReason))
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{
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MessageBoxA(NULL, initFailureReason.c_str(), "DeckLink mode configuration error", MB_OK);
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return false;
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}
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}
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if (!mVideoBackend->DiscoverDevicesAndModes(videoModes, initFailureReason))
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{
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const char* title = initFailureReason == "Please install the Blackmagic DeckLink drivers to use the features of this application."
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? "This application requires the DeckLink drivers installed."
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: "DeckLink initialization failed";
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MessageBoxA(NULL, initFailureReason.c_str(), title, MB_OK | MB_ICONERROR);
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return false;
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}
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const bool outputAlphaRequired = mRuntimeStore && mRuntimeStore->IsExternalKeyingConfigured();
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if (!mVideoBackend->SelectPreferredFormats(videoModes, outputAlphaRequired, initFailureReason))
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goto error;
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if (! CheckOpenGLExtensions())
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{
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initFailureReason = "OpenGL extension checks failed.";
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goto error;
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}
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if (! InitOpenGLState())
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{
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initFailureReason = "OpenGL state initialization failed.";
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goto error;
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}
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mVideoBackend->PublishStatus(
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mRuntimeStore && mRuntimeStore->IsExternalKeyingConfigured(),
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mVideoBackend->OutputModelName().empty()
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? "DeckLink output device selected."
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: ("Selected output device: " + mVideoBackend->OutputModelName()));
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// Resize window to match output video frame, but scale large formats down by half for viewing.
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if (mVideoBackend->OutputFrameWidth() < 1920)
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resizeWindow(mVideoBackend->OutputFrameWidth(), mVideoBackend->OutputFrameHeight());
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else
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resizeWindow(mVideoBackend->OutputFrameWidth() / 2, mVideoBackend->OutputFrameHeight() / 2);
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if (!mVideoBackend->ConfigureInput(videoModes.input, initFailureReason))
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{
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goto error;
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}
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if (!mVideoBackend->HasInputDevice())
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mVideoBackend->ReportNoInputDeviceSignalStatus();
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if (!mVideoBackend->ConfigureOutput(videoModes.output, mRuntimeStore && mRuntimeStore->IsExternalKeyingConfigured(), initFailureReason))
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{
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goto error;
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}
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mVideoBackend->PublishStatus(
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mRuntimeStore && mRuntimeStore->IsExternalKeyingConfigured(),
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mVideoBackend->StatusMessage());
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return true;
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error:
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if (!initFailureReason.empty())
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MessageBoxA(NULL, initFailureReason.c_str(), "DeckLink initialization failed", MB_OK | MB_ICONERROR);
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mVideoBackend->ReleaseResources();
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return false;
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}
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void OpenGLComposite::paintGL(bool force)
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{
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if (!force)
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{
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if (IsIconic(hGLWnd))
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return;
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}
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const unsigned previewFps = mRuntimeStore ? mRuntimeStore->GetConfiguredPreviewFps() : 30u;
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if (!mRenderEngine->TryPresentPreview(force, previewFps, mVideoBackend->OutputFrameWidth(), mVideoBackend->OutputFrameHeight()))
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{
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ValidateRect(hGLWnd, NULL);
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return;
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}
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ValidateRect(hGLWnd, NULL);
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}
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void OpenGLComposite::resizeGL(WORD width, WORD height)
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{
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// We don't set the project or model matrices here since the window data is copied directly from
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// an off-screen FBO in paintGL(). Just save the width and height for use in paintGL().
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mRenderEngine->ResizeView(width, height);
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}
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void OpenGLComposite::resizeWindow(int width, int height)
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{
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RECT r;
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if (GetWindowRect(hGLWnd, &r))
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{
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SetWindowPos(hGLWnd, HWND_TOP, r.left, r.top, r.left + width, r.top + height, 0);
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}
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}
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bool OpenGLComposite::InitOpenGLState()
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{
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if (! ResolveGLExtensions())
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return false;
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std::string runtimeError;
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if (mRuntimeStore->GetRuntimeRepositoryRoot().empty() && !mRuntimeStore->InitializeStore(runtimeError))
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{
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MessageBoxA(NULL, runtimeError.c_str(), "Runtime host failed to initialize", MB_OK);
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return false;
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}
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if (!mRuntimeServices->Start(*this, *mRuntimeStore, runtimeError))
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{
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MessageBoxA(NULL, runtimeError.c_str(), "Runtime control services failed to start", MB_OK);
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return false;
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}
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// Prepare the runtime shader program generated from the active shader package.
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char compilerErrorMessage[1024];
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if (!mRenderEngine->CompileDecodeShader(sizeof(compilerErrorMessage), compilerErrorMessage))
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{
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MessageBoxA(NULL, compilerErrorMessage, "OpenGL decode shader failed to load or compile", MB_OK);
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return false;
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}
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if (!mRenderEngine->CompileOutputPackShader(sizeof(compilerErrorMessage), compilerErrorMessage))
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{
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MessageBoxA(NULL, compilerErrorMessage, "OpenGL output pack shader failed to load or compile", MB_OK);
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return false;
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}
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std::string rendererError;
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if (!mRenderEngine->InitializeResources(
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mVideoBackend->InputFrameWidth(),
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mVideoBackend->InputFrameHeight(),
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mVideoBackend->CaptureTextureWidth(),
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mVideoBackend->OutputFrameWidth(),
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mVideoBackend->OutputFrameHeight(),
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mVideoBackend->OutputPackTextureWidth(),
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rendererError))
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{
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MessageBoxA(NULL, rendererError.c_str(), "OpenGL initialization error.", MB_OK);
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return false;
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}
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if (!mRenderEngine->CompileLayerPrograms(mVideoBackend->InputFrameWidth(), mVideoBackend->InputFrameHeight(), sizeof(compilerErrorMessage), compilerErrorMessage))
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{
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MessageBoxA(NULL, compilerErrorMessage, "OpenGL shader failed to load or compile", MB_OK);
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return false;
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}
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mRuntimeStore->SetCompileStatus(true, "Shader layers compiled successfully.");
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mRenderEngine->ResetTemporalHistoryState();
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mRenderEngine->ResetShaderFeedbackState();
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mRuntimeUpdateController->BroadcastRuntimeState();
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mRuntimeServices->BeginPolling(*mRuntimeCoordinator);
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return true;
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}
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bool OpenGLComposite::Start()
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{
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return mVideoBackend->Start();
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}
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bool OpenGLComposite::Stop()
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{
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if (mRuntimeServices)
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mRuntimeServices->Stop();
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const bool wasExternalKeyingActive = mVideoBackend->ExternalKeyingActive();
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mVideoBackend->Stop();
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if (wasExternalKeyingActive)
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mVideoBackend->PublishStatus(
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mRuntimeStore && mRuntimeStore->IsExternalKeyingConfigured(),
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"External keying has been disabled.");
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return true;
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}
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bool OpenGLComposite::ReloadShader(bool preserveFeedbackState)
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{
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return mRuntimeCoordinator &&
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mRuntimeUpdateController &&
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mRuntimeUpdateController->ApplyRuntimeCoordinatorResult(mRuntimeCoordinator->RequestShaderReload(preserveFeedbackState));
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}
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bool OpenGLComposite::RequestScreenshot(std::string& error)
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{
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(void)error;
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mScreenshotRequested.store(true);
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return true;
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}
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void OpenGLComposite::renderEffect()
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{
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if (mRuntimeUpdateController)
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mRuntimeUpdateController->ProcessRuntimeWork();
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const bool hasInputSource = mVideoBackend->HasInputSource();
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std::vector<RuntimeRenderState> layerStates;
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const double smoothing = mRuntimeStore ? mRuntimeStore->GetConfiguredOscSmoothing() : 0.0;
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if (mRuntimeServices)
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{
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RuntimeServiceLiveBridge::PrepareLiveRenderLayerStates(
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*mRuntimeServices,
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*mRenderEngine,
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mRuntimeCoordinator && mRuntimeCoordinator->UseCommittedLayerStates(),
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mVideoBackend->InputFrameWidth(),
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mVideoBackend->InputFrameHeight(),
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smoothing,
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layerStates);
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}
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else
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{
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mRenderEngine->ResolveRenderLayerStates(
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mRuntimeCoordinator && mRuntimeCoordinator->UseCommittedLayerStates(),
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mVideoBackend->InputFrameWidth(),
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mVideoBackend->InputFrameHeight(),
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smoothing,
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nullptr,
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layerStates);
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}
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const unsigned historyCap = mRuntimeStore ? mRuntimeStore->GetConfiguredMaxTemporalHistoryFrames() : 0;
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mRenderEngine->RenderLayerStack(
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hasInputSource,
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layerStates,
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mVideoBackend->InputFrameWidth(),
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mVideoBackend->InputFrameHeight(),
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mVideoBackend->CaptureTextureWidth(),
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mVideoBackend->InputPixelFormat(),
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historyCap);
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}
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void OpenGLComposite::ProcessScreenshotRequest()
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{
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if (!mScreenshotRequested.exchange(false))
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return;
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const unsigned width = mVideoBackend ? mVideoBackend->OutputFrameWidth() : 0;
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const unsigned height = mVideoBackend ? mVideoBackend->OutputFrameHeight() : 0;
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if (width == 0 || height == 0)
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return;
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std::vector<unsigned char> topDownPixels;
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if (!mRenderEngine->CaptureOutputFrameRgbaTopDown(width, height, topDownPixels))
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return;
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try
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{
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const std::filesystem::path outputPath = BuildScreenshotPath();
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std::filesystem::create_directories(outputPath.parent_path());
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WritePngFileAsync(outputPath, width, height, std::move(topDownPixels));
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}
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catch (const std::exception& exception)
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{
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OutputDebugStringA((std::string("Screenshot request failed: ") + exception.what() + "\n").c_str());
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}
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}
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std::filesystem::path OpenGLComposite::BuildScreenshotPath() const
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{
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const std::filesystem::path root = mRuntimeStore && !mRuntimeStore->GetRuntimeDataRoot().empty()
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? mRuntimeStore->GetRuntimeDataRoot()
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: std::filesystem::current_path();
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const auto now = std::chrono::system_clock::now();
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const auto milliseconds = std::chrono::duration_cast<std::chrono::milliseconds>(now.time_since_epoch()) % 1000;
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const std::time_t nowTime = std::chrono::system_clock::to_time_t(now);
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std::tm localTime = {};
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localtime_s(&localTime, &nowTime);
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std::ostringstream filename;
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filename << "video-shader-toys-"
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<< std::put_time(&localTime, "%Y%m%d-%H%M%S")
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<< "-" << std::setw(3) << std::setfill('0') << milliseconds.count()
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<< ".png";
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return root / "screenshots" / filename.str();
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}
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bool OpenGLComposite::CheckOpenGLExtensions()
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{
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return true;
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}
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