1003 lines
32 KiB
C++
1003 lines
32 KiB
C++
/* -LICENSE-START-
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** Copyright (c) 2012 Blackmagic Design
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**
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** Permission is hereby granted, free of charge, to any person or organization
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** obtaining a copy of the software and accompanying documentation (the
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** "Software") to use, reproduce, display, distribute, sub-license, execute,
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** and transmit the Software, and to prepare derivative works of the Software,
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** and to permit third-parties to whom the Software is furnished to do so, in
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** accordance with:
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**
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** (1) if the Software is obtained from Blackmagic Design, the End User License
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** Agreement for the Software Development Kit ("EULA") available at
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** https://www.blackmagicdesign.com/EULA/DeckLinkSDK; or
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**
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** (2) if the Software is obtained from any third party, such licensing terms
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** as notified by that third party,
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**
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** and all subject to the following:
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**
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** (3) the copyright notices in the Software and this entire statement,
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** including the above license grant, this restriction and the following
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** disclaimer, must be included in all copies of the Software, in whole or in
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** part, and all derivative works of the Software, unless such copies or
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** derivative works are solely in the form of machine-executable object code
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** generated by a source language processor.
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**
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** (4) THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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** OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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** FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
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** SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
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** FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
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** ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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** DEALINGS IN THE SOFTWARE.
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**
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** A copy of the Software is available free of charge at
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** https://www.blackmagicdesign.com/desktopvideo_sdk under the EULA.
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**
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** -LICENSE-END-
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*/
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#include "ControlServer.h"
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#include "DeckLinkDisplayMode.h"
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#include "DeckLinkFrameTransfer.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 "OpenGLRenderPass.h"
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#include "OpenGLShaderPrograms.h"
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#include "OscServer.h"
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#include "RuntimeControlBridge.h"
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#include <memory>
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#include <string>
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#include <vector>
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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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mCaptureDelegate(NULL), mPlayoutDelegate(NULL),
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mDLInput(NULL), mDLOutput(NULL), mDLKeyer(NULL),
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mPlayoutAllocator(NULL),
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mInputFrameWidth(0), mInputFrameHeight(0),
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mOutputFrameWidth(0), mOutputFrameHeight(0),
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mInputDisplayModeName("1080p59.94"),
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mOutputDisplayModeName("1080p59.94"),
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mHasNoInputSource(true),
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mDeckLinkSupportsInternalKeying(false),
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mDeckLinkSupportsExternalKeying(false),
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mDeckLinkKeyerInterfaceAvailable(false),
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mDeckLinkExternalKeyingActive(false),
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mRenderer(std::make_unique<OpenGLRenderer>())
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{
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InitializeCriticalSection(&pMutex);
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mRuntimeHost = std::make_unique<RuntimeHost>();
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mRenderPass = std::make_unique<OpenGLRenderPass>(*mRenderer);
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mShaderPrograms = std::make_unique<OpenGLShaderPrograms>(*mRenderer, *mRuntimeHost);
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mControlServer = std::make_unique<ControlServer>();
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mOscServer = std::make_unique<OscServer>();
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}
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OpenGLComposite::~OpenGLComposite()
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{
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// Cleanup for Capture
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if (mDLInput != NULL)
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{
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mDLInput->SetCallback(NULL);
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mDLInput->Release();
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mDLInput = NULL;
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}
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if (mCaptureDelegate != NULL)
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{
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mCaptureDelegate->Release();
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mCaptureDelegate = NULL;
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}
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// Cleanup for Playout
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while (!mDLOutputVideoFrameQueue.empty())
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{
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IDeckLinkMutableVideoFrame* frameToRelease = mDLOutputVideoFrameQueue.front();
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if (frameToRelease != NULL)
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{
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frameToRelease->Release();
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frameToRelease = NULL;
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}
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mDLOutputVideoFrameQueue.pop_front();
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}
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if (mDLOutput != NULL)
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{
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if (mDLKeyer != NULL)
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{
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mDLKeyer->Disable();
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mDLKeyer->Release();
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mDLKeyer = NULL;
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}
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mDLOutput->SetScheduledFrameCompletionCallback(NULL);
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mDLOutput->Release();
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mDLOutput = NULL;
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}
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if (mPlayoutDelegate != NULL)
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{
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mPlayoutDelegate->Release();
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mPlayoutDelegate = NULL;
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}
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if (mPlayoutAllocator != NULL)
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{
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mPlayoutAllocator->Release();
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mPlayoutAllocator = NULL;
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}
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mRenderer->DestroyResources();
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if (mOscServer)
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mOscServer->Stop();
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if (mControlServer)
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mControlServer->Stop();
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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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bool bSuccess = false;
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IDeckLinkIterator* pDLIterator = NULL;
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IDeckLink* pDL = NULL;
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IDeckLinkProfileAttributes* deckLinkAttributes = NULL;
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IDeckLinkDisplayModeIterator* pDLInputDisplayModeIterator = NULL;
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IDeckLinkDisplayModeIterator* pDLOutputDisplayModeIterator = NULL;
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IDeckLinkDisplayMode* pDLInputDisplayMode = NULL;
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IDeckLinkDisplayMode* pDLOutputDisplayMode = NULL;
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BMDDisplayMode inputDisplayMode = bmdModeHD1080p5994;
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BMDDisplayMode outputDisplayMode = bmdModeHD1080p5994;
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std::string inputDisplayModeName = "1080p59.94";
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std::string outputDisplayModeName = "1080p59.94";
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std::string initFailureReason;
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int outputFrameRowBytes;
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HRESULT result;
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if (mRuntimeHost && mRuntimeHost->GetRepoRoot().empty())
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{
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std::string runtimeError;
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if (!mRuntimeHost->Initialize(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 (mRuntimeHost)
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{
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if (!ResolveConfiguredDisplayMode(mRuntimeHost->GetInputVideoFormat(), mRuntimeHost->GetInputFrameRate(), inputDisplayMode, inputDisplayModeName))
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{
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const std::string error = "Unsupported DeckLink inputVideoFormat/inputFrameRate in config/runtime-host.json: " +
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mRuntimeHost->GetInputVideoFormat() + " / " + mRuntimeHost->GetInputFrameRate();
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MessageBoxA(NULL, error.c_str(), "DeckLink input mode configuration error", MB_OK);
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return false;
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}
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if (!ResolveConfiguredDisplayMode(mRuntimeHost->GetOutputVideoFormat(), mRuntimeHost->GetOutputFrameRate(), outputDisplayMode, outputDisplayModeName))
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{
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const std::string error = "Unsupported DeckLink outputVideoFormat/outputFrameRate in config/runtime-host.json: " +
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mRuntimeHost->GetOutputVideoFormat() + " / " + mRuntimeHost->GetOutputFrameRate();
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MessageBoxA(NULL, error.c_str(), "DeckLink output mode configuration error", MB_OK);
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return false;
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}
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}
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mInputDisplayModeName = inputDisplayModeName;
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mOutputDisplayModeName = outputDisplayModeName;
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result = CoCreateInstance(CLSID_CDeckLinkIterator, NULL, CLSCTX_ALL, IID_IDeckLinkIterator, (void**)&pDLIterator);
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if (FAILED(result))
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{
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MessageBox(NULL, _T("Please install the Blackmagic DeckLink drivers to use the features of this application."), _T("This application requires the DeckLink drivers installed."), MB_OK);
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return false;
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}
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while (pDLIterator->Next(&pDL) == S_OK)
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{
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int64_t duplexMode;
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bool supportsInternalKeying = false;
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bool supportsExternalKeying = false;
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std::string modelName;
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if (result = pDL->QueryInterface(IID_IDeckLinkProfileAttributes, (void**)&deckLinkAttributes) != S_OK)
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{
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printf("Could not obtain the IDeckLinkProfileAttributes interface - result %08x\n", result);
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pDL->Release();
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pDL = NULL;
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continue;
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}
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result = deckLinkAttributes->GetInt(BMDDeckLinkDuplex, &duplexMode);
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BOOL attributeFlag = FALSE;
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if (deckLinkAttributes->GetFlag(BMDDeckLinkSupportsInternalKeying, &attributeFlag) == S_OK)
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supportsInternalKeying = (attributeFlag != FALSE);
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attributeFlag = FALSE;
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if (deckLinkAttributes->GetFlag(BMDDeckLinkSupportsExternalKeying, &attributeFlag) == S_OK)
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supportsExternalKeying = (attributeFlag != FALSE);
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BSTR modelNameBstr = NULL;
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if (deckLinkAttributes->GetString(BMDDeckLinkModelName, &modelNameBstr) == S_OK && modelNameBstr != NULL)
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{
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const int requiredBytes = WideCharToMultiByte(CP_UTF8, 0, modelNameBstr, -1, NULL, 0, NULL, NULL);
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if (requiredBytes > 1)
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{
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std::vector<char> utf8Name(static_cast<std::size_t>(requiredBytes), '\0');
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if (WideCharToMultiByte(CP_UTF8, 0, modelNameBstr, -1, utf8Name.data(), requiredBytes, NULL, NULL) > 0)
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modelName.assign(utf8Name.data());
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}
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SysFreeString(modelNameBstr);
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}
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deckLinkAttributes->Release();
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deckLinkAttributes = NULL;
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if (result != S_OK || duplexMode == bmdDuplexInactive)
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{
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pDL->Release();
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pDL = NULL;
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continue;
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}
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// Preserve the original input-then-output selection for half-duplex cards.
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// Input is optional later, but choosing output first can pick the wrong card.
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bool inputUsed = false;
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if (!mDLInput && pDL->QueryInterface(IID_IDeckLinkInput, (void**)&mDLInput) == S_OK)
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inputUsed = true;
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if (!mDLOutput && (!inputUsed || (duplexMode == bmdDuplexFull)))
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{
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if (pDL->QueryInterface(IID_IDeckLinkOutput, (void**)&mDLOutput) != S_OK)
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mDLOutput = NULL;
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else
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{
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mDeckLinkOutputModelName = modelName;
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mDeckLinkSupportsInternalKeying = supportsInternalKeying;
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mDeckLinkSupportsExternalKeying = supportsExternalKeying;
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}
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}
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pDL->Release();
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pDL = NULL;
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if (mDLOutput && mDLInput)
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break;
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}
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if (!mDLOutput)
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{
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MessageBox(NULL, _T("Expected an Output DeckLink device"), _T("This application requires a DeckLink output device."), MB_OK);
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goto error;
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}
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if (mDLInput && mDLInput->GetDisplayModeIterator(&pDLInputDisplayModeIterator) != S_OK)
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{
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MessageBox(NULL, _T("Cannot get input Display Mode Iterator."), _T("DeckLink error."), MB_OK);
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goto error;
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}
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if (mDLInput && !FindDeckLinkDisplayMode(pDLInputDisplayModeIterator, inputDisplayMode, &pDLInputDisplayMode))
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{
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const std::string error = "Cannot get specified input BMDDisplayMode for configured mode: " + inputDisplayModeName;
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MessageBoxA(NULL, error.c_str(), "DeckLink input error.", MB_OK);
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goto error;
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}
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if (pDLInputDisplayModeIterator)
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{
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pDLInputDisplayModeIterator->Release();
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pDLInputDisplayModeIterator = NULL;
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}
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if (mDLOutput->GetDisplayModeIterator(&pDLOutputDisplayModeIterator) != S_OK)
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{
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MessageBox(NULL, _T("Cannot get output Display Mode Iterator."), _T("DeckLink error."), MB_OK);
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goto error;
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}
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if (!FindDeckLinkDisplayMode(pDLOutputDisplayModeIterator, outputDisplayMode, &pDLOutputDisplayMode))
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{
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const std::string error = "Cannot get specified output BMDDisplayMode for configured mode: " + outputDisplayModeName;
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MessageBoxA(NULL, error.c_str(), "DeckLink output error.", MB_OK);
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goto error;
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}
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pDLOutputDisplayModeIterator->Release();
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pDLOutputDisplayModeIterator = NULL;
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mOutputFrameWidth = pDLOutputDisplayMode->GetWidth();
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mOutputFrameHeight = pDLOutputDisplayMode->GetHeight();
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mInputFrameWidth = pDLInputDisplayMode ? pDLInputDisplayMode->GetWidth() : mOutputFrameWidth;
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mInputFrameHeight = pDLInputDisplayMode ? pDLInputDisplayMode->GetHeight() : mOutputFrameHeight;
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if (!mDLInput)
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mInputDisplayModeName = "No input - black frame";
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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 (mInputFrameWidth != mOutputFrameWidth || mInputFrameHeight != mOutputFrameHeight)
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{
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mRenderer->mFastTransferExtensionAvailable = false;
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OutputDebugStringA("Input/output dimensions differ; using regular OpenGL transfer fallback instead of fast transfer.\n");
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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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if (mRuntimeHost)
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{
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mDeckLinkStatusMessage = mDeckLinkOutputModelName.empty()
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? "DeckLink output device selected."
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: ("Selected output device: " + mDeckLinkOutputModelName);
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mRuntimeHost->SetDeckLinkOutputStatus(
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mDeckLinkOutputModelName,
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mDeckLinkSupportsInternalKeying,
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mDeckLinkSupportsExternalKeying,
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mDeckLinkKeyerInterfaceAvailable,
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mRuntimeHost->ExternalKeyingEnabled(),
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mDeckLinkExternalKeyingActive,
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mDeckLinkStatusMessage);
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}
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pDLOutputDisplayMode->GetFrameRate(&mFrameDuration, &mFrameTimescale);
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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 (mOutputFrameWidth < 1920)
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resizeWindow(mOutputFrameWidth, mOutputFrameHeight);
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else
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resizeWindow(mOutputFrameWidth / 2, mOutputFrameHeight / 2);
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|
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if (mRenderer->mFastTransferExtensionAvailable)
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{
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// Initialize fast video frame transfers
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if (! VideoFrameTransfer::initialize(mInputFrameWidth, mInputFrameHeight, mRenderer->mCaptureTexture, mRenderer->mOutputTexture))
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{
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MessageBox(NULL, _T("Cannot initialize video transfers."), _T("VideoFrameTransfer error."), MB_OK);
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goto error;
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}
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}
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if (mDLInput)
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{
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// Use custom allocators so we pin only once then recycle them
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CComPtr<IDeckLinkVideoBufferAllocatorProvider> captureAllocator(new (std::nothrow) InputAllocatorPool(hGLDC, hGLRC));
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if (mDLInput->EnableVideoInputWithAllocatorProvider(inputDisplayMode, bmdFormat8BitYUV, bmdVideoInputFlagDefault, captureAllocator) != S_OK)
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{
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OutputDebugStringA("DeckLink input could not be enabled; continuing in output-only black-frame mode.\n");
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mDLInput->Release();
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mDLInput = NULL;
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mHasNoInputSource = true;
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mInputDisplayModeName = "No input - black frame";
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if (mRuntimeHost)
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mRuntimeHost->SetSignalStatus(false, mInputFrameWidth, mInputFrameHeight, mInputDisplayModeName);
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}
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}
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|
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if (mDLInput)
|
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{
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mCaptureDelegate = new CaptureDelegate(this);
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if (mDLInput->SetCallback(mCaptureDelegate) != S_OK)
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{
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initFailureReason = "DeckLink input setup failed while installing the capture callback.";
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goto error;
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}
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}
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else if (mRuntimeHost)
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{
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mRuntimeHost->SetSignalStatus(false, mInputFrameWidth, mInputFrameHeight, mInputDisplayModeName);
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}
|
|
|
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if (mDLOutput->RowBytesForPixelFormat(bmdFormat8BitBGRA, mOutputFrameWidth, &outputFrameRowBytes) != S_OK)
|
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{
|
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initFailureReason = "DeckLink output setup failed while calculating BGRA row bytes.";
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goto error;
|
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}
|
|
|
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// Use a custom allocator so we pin only once then recycle them
|
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mPlayoutAllocator = new PinnedMemoryAllocator(hGLDC, hGLRC, VideoFrameTransfer::GPUtoCPU, 1, outputFrameRowBytes * mOutputFrameHeight);
|
|
|
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if (mDLOutput->EnableVideoOutput(outputDisplayMode, bmdVideoOutputFlagDefault) != S_OK)
|
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{
|
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initFailureReason = "DeckLink output setup failed while enabling video output.";
|
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goto error;
|
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}
|
|
|
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if (mDLOutput->QueryInterface(IID_IDeckLinkKeyer, (void**)&mDLKeyer) == S_OK && mDLKeyer != NULL)
|
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mDeckLinkKeyerInterfaceAvailable = true;
|
|
|
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if (mRuntimeHost && mRuntimeHost->ExternalKeyingEnabled())
|
|
{
|
|
if (!mDeckLinkSupportsExternalKeying)
|
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{
|
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mDeckLinkStatusMessage = "External keying was requested, but the selected DeckLink output does not report external keying support.";
|
|
}
|
|
else if (!mDeckLinkKeyerInterfaceAvailable)
|
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{
|
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mDeckLinkStatusMessage = "External keying was requested, but the selected DeckLink output does not expose the IDeckLinkKeyer interface.";
|
|
}
|
|
else if (mDLKeyer->Enable(TRUE) != S_OK || mDLKeyer->SetLevel(255) != S_OK)
|
|
{
|
|
mDeckLinkStatusMessage = "External keying was requested, but enabling the DeckLink keyer failed.";
|
|
}
|
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else
|
|
{
|
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mDeckLinkExternalKeyingActive = true;
|
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mDeckLinkStatusMessage = "External keying is active on the selected DeckLink output.";
|
|
}
|
|
}
|
|
else if (mDeckLinkSupportsExternalKeying)
|
|
{
|
|
mDeckLinkStatusMessage = "Selected DeckLink output supports external keying. Set enableExternalKeying to true in runtime-host.json to request it.";
|
|
}
|
|
|
|
if (mRuntimeHost)
|
|
{
|
|
mRuntimeHost->SetDeckLinkOutputStatus(
|
|
mDeckLinkOutputModelName,
|
|
mDeckLinkSupportsInternalKeying,
|
|
mDeckLinkSupportsExternalKeying,
|
|
mDeckLinkKeyerInterfaceAvailable,
|
|
mRuntimeHost->ExternalKeyingEnabled(),
|
|
mDeckLinkExternalKeyingActive,
|
|
mDeckLinkStatusMessage);
|
|
}
|
|
|
|
// Create a queue of 10 IDeckLinkMutableVideoFrame objects to use for scheduling output video frames.
|
|
// The ScheduledFrameCompleted() callback will immediately schedule a new frame using the next video frame from this queue.
|
|
for (int i = 0; i < 10; i++)
|
|
{
|
|
// The frame read back from the GPU frame buffer and used for the playout video frame is in BGRA format.
|
|
// The BGRA frame will be converted on playout to YCbCr either in hardware on most DeckLink cards or in software
|
|
// within the DeckLink API for DeckLink devices without this hardware conversion.
|
|
// If you want RGB 4:4:4 format to be played out "over the wire" in SDI, turn on the "Use 4:4:4 SDI" in the control
|
|
// panel or turn on the bmdDeckLinkConfig444SDIVideoOutput flag using the IDeckLinkConfiguration interface.
|
|
IDeckLinkMutableVideoFrame* outputFrame;
|
|
IDeckLinkVideoBuffer* outputFrameBuffer = NULL;
|
|
|
|
if (mPlayoutAllocator->AllocateVideoBuffer(&outputFrameBuffer) != S_OK)
|
|
{
|
|
initFailureReason = "DeckLink output setup failed while allocating an output frame buffer.";
|
|
goto error;
|
|
}
|
|
|
|
if (mDLOutput->CreateVideoFrameWithBuffer(mOutputFrameWidth, mOutputFrameHeight, outputFrameRowBytes, bmdFormat8BitBGRA, bmdFrameFlagFlipVertical, outputFrameBuffer, &outputFrame) != S_OK)
|
|
{
|
|
initFailureReason = "DeckLink output setup failed while creating an output video frame.";
|
|
goto error;
|
|
}
|
|
|
|
mDLOutputVideoFrameQueue.push_back(outputFrame);
|
|
}
|
|
|
|
mPlayoutDelegate = new PlayoutDelegate(this);
|
|
if (mPlayoutDelegate == NULL)
|
|
{
|
|
initFailureReason = "DeckLink output setup failed while creating the playout callback.";
|
|
goto error;
|
|
}
|
|
|
|
if (mDLOutput->SetScheduledFrameCompletionCallback(mPlayoutDelegate) != S_OK)
|
|
{
|
|
initFailureReason = "DeckLink output setup failed while installing the scheduled-frame callback.";
|
|
goto error;
|
|
}
|
|
|
|
bSuccess = true;
|
|
|
|
error:
|
|
if (!bSuccess)
|
|
{
|
|
if (!initFailureReason.empty())
|
|
MessageBoxA(NULL, initFailureReason.c_str(), "DeckLink initialization failed", MB_OK | MB_ICONERROR);
|
|
|
|
if (mDLKeyer != NULL)
|
|
{
|
|
mDLKeyer->Disable();
|
|
mDLKeyer->Release();
|
|
mDLKeyer = NULL;
|
|
mDeckLinkExternalKeyingActive = false;
|
|
}
|
|
if (mDLInput != NULL)
|
|
{
|
|
mDLInput->Release();
|
|
mDLInput = NULL;
|
|
}
|
|
if (mDLOutput != NULL)
|
|
{
|
|
mDLOutput->Release();
|
|
mDLOutput = NULL;
|
|
}
|
|
}
|
|
|
|
if (pDL != NULL)
|
|
{
|
|
pDL->Release();
|
|
pDL = NULL;
|
|
}
|
|
|
|
if (pDLInputDisplayMode != NULL)
|
|
{
|
|
pDLInputDisplayMode->Release();
|
|
pDLInputDisplayMode = NULL;
|
|
}
|
|
|
|
if (pDLOutputDisplayMode != NULL)
|
|
{
|
|
pDLOutputDisplayMode->Release();
|
|
pDLOutputDisplayMode = NULL;
|
|
}
|
|
|
|
if (pDLInputDisplayModeIterator != NULL)
|
|
{
|
|
pDLInputDisplayModeIterator->Release();
|
|
pDLInputDisplayModeIterator = NULL;
|
|
}
|
|
|
|
if (pDLOutputDisplayModeIterator != NULL)
|
|
{
|
|
pDLOutputDisplayModeIterator->Release();
|
|
pDLOutputDisplayModeIterator = NULL;
|
|
}
|
|
|
|
if (pDLIterator != NULL)
|
|
{
|
|
pDLIterator->Release();
|
|
pDLIterator = NULL;
|
|
}
|
|
|
|
return bSuccess;
|
|
}
|
|
|
|
void OpenGLComposite::paintGL()
|
|
{
|
|
if (!TryEnterCriticalSection(&pMutex))
|
|
{
|
|
ValidateRect(hGLWnd, NULL);
|
|
return;
|
|
}
|
|
|
|
mRenderer->PresentToWindow(hGLDC, mOutputFrameWidth, mOutputFrameHeight);
|
|
ValidateRect(hGLWnd, NULL);
|
|
LeaveCriticalSection(&pMutex);
|
|
}
|
|
|
|
void OpenGLComposite::resizeGL(WORD width, WORD height)
|
|
{
|
|
// We don't set the project or model matrices here since the window data is copied directly from
|
|
// an off-screen FBO in paintGL(). Just save the width and height for use in paintGL().
|
|
mRenderer->ResizeView(width, height);
|
|
}
|
|
|
|
void OpenGLComposite::resizeWindow(int width, int height)
|
|
{
|
|
RECT r;
|
|
if (GetWindowRect(hGLWnd, &r))
|
|
{
|
|
SetWindowPos(hGLWnd, HWND_TOP, r.left, r.top, r.left + width, r.top + height, 0);
|
|
}
|
|
}
|
|
|
|
bool OpenGLComposite::InitOpenGLState()
|
|
{
|
|
if (! ResolveGLExtensions())
|
|
return false;
|
|
|
|
std::string runtimeError;
|
|
if (mRuntimeHost->GetRepoRoot().empty() && !mRuntimeHost->Initialize(runtimeError))
|
|
{
|
|
MessageBoxA(NULL, runtimeError.c_str(), "Runtime host failed to initialize", MB_OK);
|
|
return false;
|
|
}
|
|
|
|
if (!StartRuntimeControlServices(*this, *mRuntimeHost, *mControlServer, *mOscServer, runtimeError))
|
|
{
|
|
MessageBoxA(NULL, runtimeError.c_str(), "Runtime control services failed to start", MB_OK);
|
|
return false;
|
|
}
|
|
|
|
// Prepare the runtime shader program generated from the active shader package.
|
|
char compilerErrorMessage[1024];
|
|
if (!mShaderPrograms->CompileDecodeShader(sizeof(compilerErrorMessage), compilerErrorMessage))
|
|
{
|
|
MessageBoxA(NULL, compilerErrorMessage, "OpenGL decode shader failed to load or compile", MB_OK);
|
|
return false;
|
|
}
|
|
|
|
if (!mShaderPrograms->CompileLayerPrograms(mInputFrameWidth, mInputFrameHeight, sizeof(compilerErrorMessage), compilerErrorMessage))
|
|
{
|
|
MessageBoxA(NULL, compilerErrorMessage, "OpenGL shader failed to load or compile", MB_OK);
|
|
return false;
|
|
}
|
|
mShaderPrograms->ResetTemporalHistoryState();
|
|
|
|
std::string rendererError;
|
|
if (!mRenderer->InitializeResources(mInputFrameWidth, mInputFrameHeight, mOutputFrameWidth, mOutputFrameHeight, rendererError))
|
|
{
|
|
MessageBoxA(NULL, rendererError.c_str(), "OpenGL initialization error.", MB_OK);
|
|
return false;
|
|
}
|
|
|
|
broadcastRuntimeState();
|
|
return true;
|
|
}
|
|
|
|
//
|
|
// Update the captured video frame texture
|
|
//
|
|
void OpenGLComposite::VideoFrameArrived(IDeckLinkVideoInputFrame* inputFrame, bool hasNoInputSource)
|
|
{
|
|
mHasNoInputSource = hasNoInputSource;
|
|
if (mRuntimeHost)
|
|
mRuntimeHost->SetSignalStatus(!hasNoInputSource, mInputFrameWidth, mInputFrameHeight, mInputDisplayModeName);
|
|
|
|
if (mHasNoInputSource)
|
|
return; // don't transfer texture when there's no input
|
|
|
|
long textureSize = inputFrame->GetRowBytes() * inputFrame->GetHeight();
|
|
IDeckLinkVideoBuffer* inputFrameBuffer = NULL;
|
|
void* videoPixels;
|
|
|
|
if (inputFrame->QueryInterface(IID_IDeckLinkVideoBuffer, (void**)&inputFrameBuffer) != S_OK)
|
|
return;
|
|
|
|
if (inputFrameBuffer->StartAccess(bmdBufferAccessRead) != S_OK)
|
|
{
|
|
inputFrameBuffer->Release();
|
|
return;
|
|
}
|
|
inputFrameBuffer->GetBytes(&videoPixels);
|
|
|
|
EnterCriticalSection(&pMutex);
|
|
|
|
wglMakeCurrent( hGLDC, hGLRC ); // make OpenGL context current in this thread
|
|
|
|
if (mRenderer->mFastTransferExtensionAvailable)
|
|
{
|
|
CComQIPtr<PinnedMemoryAllocator, &IID_PinnedMemoryAllocator> allocator(inputFrameBuffer);
|
|
if (!allocator || !allocator->transferFrame(videoPixels, mRenderer->mCaptureTexture))
|
|
OutputDebugStringA("Capture: transferFrame() failed\n");
|
|
|
|
allocator->waitForTransferComplete(videoPixels);
|
|
}
|
|
else
|
|
{
|
|
// Use a straightforward texture buffer
|
|
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, mRenderer->mUnpinnedTextureBuffer);
|
|
glBufferData(GL_PIXEL_UNPACK_BUFFER, textureSize, videoPixels, GL_DYNAMIC_DRAW);
|
|
glBindTexture(GL_TEXTURE_2D, mRenderer->mCaptureTexture);
|
|
|
|
// NULL for last arg indicates use current GL_PIXEL_UNPACK_BUFFER target as texture data
|
|
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, mInputFrameWidth / 2, mInputFrameHeight, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, NULL);
|
|
|
|
glBindTexture(GL_TEXTURE_2D, 0);
|
|
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, 0);
|
|
}
|
|
|
|
wglMakeCurrent( NULL, NULL );
|
|
|
|
LeaveCriticalSection(&pMutex);
|
|
|
|
inputFrameBuffer->EndAccess(bmdBufferAccessRead);
|
|
inputFrameBuffer->Release();
|
|
}
|
|
|
|
// Render the live video texture through the runtime shader into the off-screen framebuffer.
|
|
// Read the result back from the frame buffer and schedule it for playout.
|
|
void OpenGLComposite::PlayoutFrameCompleted(IDeckLinkVideoFrame* completedFrame, BMDOutputFrameCompletionResult completionResult)
|
|
{
|
|
EnterCriticalSection(&pMutex);
|
|
|
|
// Get the first frame from the queue
|
|
IDeckLinkMutableVideoFrame* outputVideoFrame = mDLOutputVideoFrameQueue.front();
|
|
mDLOutputVideoFrameQueue.push_back(outputVideoFrame);
|
|
mDLOutputVideoFrameQueue.pop_front();
|
|
|
|
// make GL context current in this thread
|
|
wglMakeCurrent( hGLDC, hGLRC );
|
|
|
|
// Draw the effect output to the off-screen framebuffer.
|
|
const auto renderStartTime = std::chrono::steady_clock::now();
|
|
if (mRenderer->mFastTransferExtensionAvailable)
|
|
VideoFrameTransfer::beginTextureInUse(VideoFrameTransfer::GPUtoCPU);
|
|
glBindFramebuffer(GL_FRAMEBUFFER, mRenderer->mIdFrameBuf);
|
|
renderEffect();
|
|
glBindFramebuffer(GL_READ_FRAMEBUFFER, mRenderer->mIdFrameBuf);
|
|
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, mRenderer->mOutputFrameBuf);
|
|
glBlitFramebuffer(0, 0, mInputFrameWidth, mInputFrameHeight, 0, 0, mOutputFrameWidth, mOutputFrameHeight, GL_COLOR_BUFFER_BIT, GL_LINEAR);
|
|
glBindFramebuffer(GL_FRAMEBUFFER, mRenderer->mOutputFrameBuf);
|
|
glFlush();
|
|
if (mRenderer->mFastTransferExtensionAvailable)
|
|
VideoFrameTransfer::endTextureInUse(VideoFrameTransfer::GPUtoCPU);
|
|
const auto renderEndTime = std::chrono::steady_clock::now();
|
|
if (mRuntimeHost)
|
|
{
|
|
const double frameBudgetMilliseconds = mFrameTimescale != 0
|
|
? (static_cast<double>(mFrameDuration) * 1000.0) / static_cast<double>(mFrameTimescale)
|
|
: 0.0;
|
|
const double renderMilliseconds = std::chrono::duration_cast<std::chrono::duration<double, std::milli>>(renderEndTime - renderStartTime).count();
|
|
mRuntimeHost->SetPerformanceStats(frameBudgetMilliseconds, renderMilliseconds);
|
|
}
|
|
if (mRuntimeHost)
|
|
mRuntimeHost->AdvanceFrame();
|
|
|
|
IDeckLinkVideoBuffer* outputVideoFrameBuffer;
|
|
if (outputVideoFrame->QueryInterface(IID_IDeckLinkVideoBuffer, (void**)&outputVideoFrameBuffer) != S_OK)
|
|
{
|
|
LeaveCriticalSection(&pMutex);
|
|
return;
|
|
}
|
|
|
|
if (outputVideoFrameBuffer->StartAccess(bmdBufferAccessWrite) != S_OK)
|
|
{
|
|
outputVideoFrameBuffer->Release();
|
|
LeaveCriticalSection(&pMutex);
|
|
return;
|
|
}
|
|
|
|
void* pFrame;
|
|
outputVideoFrameBuffer->GetBytes(&pFrame);
|
|
|
|
if (mRenderer->mFastTransferExtensionAvailable)
|
|
{
|
|
// Finished with mRenderer->mCaptureTexture
|
|
if (!mHasNoInputSource)
|
|
VideoFrameTransfer::endTextureInUse(VideoFrameTransfer::CPUtoGPU);
|
|
|
|
if (! mPlayoutAllocator->transferFrame(pFrame, mRenderer->mOutputTexture))
|
|
OutputDebugStringA("Playback: transferFrame() failed\n");
|
|
|
|
paintGL();
|
|
|
|
// Wait for transfer to system memory to complete
|
|
mPlayoutAllocator->waitForTransferComplete(pFrame);
|
|
}
|
|
else
|
|
{
|
|
glBindFramebuffer(GL_READ_FRAMEBUFFER, mRenderer->mOutputFrameBuf);
|
|
glReadPixels(0, 0, mOutputFrameWidth, mOutputFrameHeight, GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, pFrame);
|
|
paintGL();
|
|
}
|
|
|
|
outputVideoFrameBuffer->EndAccess(bmdBufferAccessWrite);
|
|
outputVideoFrameBuffer->Release();
|
|
|
|
// If the last completed frame was late or dropped, bump the scheduled time further into the future
|
|
if (completionResult == bmdOutputFrameDisplayedLate || completionResult == bmdOutputFrameDropped)
|
|
mTotalPlayoutFrames += 2;
|
|
|
|
// Schedule the next frame for playout
|
|
HRESULT hr = mDLOutput->ScheduleVideoFrame(outputVideoFrame, (mTotalPlayoutFrames * mFrameDuration), mFrameDuration, mFrameTimescale);
|
|
if (SUCCEEDED(hr))
|
|
mTotalPlayoutFrames++;
|
|
|
|
wglMakeCurrent( NULL, NULL );
|
|
|
|
LeaveCriticalSection(&pMutex);
|
|
}
|
|
|
|
bool OpenGLComposite::Start()
|
|
{
|
|
mTotalPlayoutFrames = 0;
|
|
if (!mDLOutput)
|
|
{
|
|
MessageBoxA(NULL, "Cannot start playout because no DeckLink output device is available.", "DeckLink start failed", MB_OK | MB_ICONERROR);
|
|
return false;
|
|
}
|
|
if (mDLOutputVideoFrameQueue.empty())
|
|
{
|
|
MessageBoxA(NULL, "Cannot start playout because the output frame queue is empty.", "DeckLink start failed", MB_OK | MB_ICONERROR);
|
|
return false;
|
|
}
|
|
|
|
// Preroll frames
|
|
for (unsigned i = 0; i < kPrerollFrameCount; i++)
|
|
{
|
|
// Take each video frame from the front of the queue and move it to the back
|
|
IDeckLinkMutableVideoFrame* outputVideoFrame = mDLOutputVideoFrameQueue.front();
|
|
mDLOutputVideoFrameQueue.push_back(outputVideoFrame);
|
|
mDLOutputVideoFrameQueue.pop_front();
|
|
|
|
// Start with a black frame for playout
|
|
IDeckLinkVideoBuffer* outputVideoFrameBuffer;
|
|
if (outputVideoFrame->QueryInterface(IID_IDeckLinkVideoBuffer, (void**)&outputVideoFrameBuffer) != S_OK)
|
|
{
|
|
MessageBoxA(NULL, "Could not query the preroll output frame buffer.", "DeckLink start failed", MB_OK | MB_ICONERROR);
|
|
return false;
|
|
}
|
|
|
|
if (outputVideoFrameBuffer->StartAccess(bmdBufferAccessWrite) != S_OK)
|
|
{
|
|
outputVideoFrameBuffer->Release();
|
|
MessageBoxA(NULL, "Could not write to the preroll output frame buffer.", "DeckLink start failed", MB_OK | MB_ICONERROR);
|
|
return false;
|
|
}
|
|
|
|
void* pFrame;
|
|
outputVideoFrameBuffer->GetBytes((void**)&pFrame);
|
|
memset(pFrame, 0, outputVideoFrame->GetRowBytes() * mOutputFrameHeight); // 0 is black in BGRA format
|
|
|
|
outputVideoFrameBuffer->EndAccess(bmdBufferAccessWrite);
|
|
outputVideoFrameBuffer->Release();
|
|
|
|
if (mDLOutput->ScheduleVideoFrame(outputVideoFrame, (mTotalPlayoutFrames * mFrameDuration), mFrameDuration, mFrameTimescale) != S_OK)
|
|
{
|
|
MessageBoxA(NULL, "Could not schedule a preroll output frame.", "DeckLink start failed", MB_OK | MB_ICONERROR);
|
|
return false;
|
|
}
|
|
|
|
mTotalPlayoutFrames++;
|
|
}
|
|
|
|
if (mDLInput)
|
|
{
|
|
if (mDLInput->StartStreams() != S_OK)
|
|
{
|
|
MessageBoxA(NULL, "Could not start the DeckLink input stream.", "DeckLink start failed", MB_OK | MB_ICONERROR);
|
|
return false;
|
|
}
|
|
}
|
|
if (mDLOutput->StartScheduledPlayback(0, mFrameTimescale, 1.0) != S_OK)
|
|
{
|
|
MessageBoxA(NULL, "Could not start DeckLink scheduled playback.", "DeckLink start failed", MB_OK | MB_ICONERROR);
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool OpenGLComposite::Stop()
|
|
{
|
|
if (mOscServer)
|
|
mOscServer->Stop();
|
|
|
|
if (mControlServer)
|
|
mControlServer->Stop();
|
|
|
|
if (mDLKeyer != NULL)
|
|
{
|
|
mDLKeyer->Disable();
|
|
mDeckLinkExternalKeyingActive = false;
|
|
if (mRuntimeHost)
|
|
{
|
|
mRuntimeHost->SetDeckLinkOutputStatus(
|
|
mDeckLinkOutputModelName,
|
|
mDeckLinkSupportsInternalKeying,
|
|
mDeckLinkSupportsExternalKeying,
|
|
mDeckLinkKeyerInterfaceAvailable,
|
|
mRuntimeHost->ExternalKeyingEnabled(),
|
|
mDeckLinkExternalKeyingActive,
|
|
"External keying has been disabled.");
|
|
}
|
|
}
|
|
|
|
if (mDLInput)
|
|
{
|
|
mDLInput->StopStreams();
|
|
mDLInput->DisableVideoInput();
|
|
}
|
|
|
|
if (mDLOutput)
|
|
{
|
|
mDLOutput->StopScheduledPlayback(0, NULL, 0);
|
|
mDLOutput->DisableVideoOutput();
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool OpenGLComposite::ReloadShader()
|
|
{
|
|
char compilerErrorMessage[1024];
|
|
|
|
EnterCriticalSection(&pMutex);
|
|
wglMakeCurrent(hGLDC, hGLRC);
|
|
|
|
bool success = mShaderPrograms->CompileLayerPrograms(mInputFrameWidth, mInputFrameHeight, sizeof(compilerErrorMessage), compilerErrorMessage);
|
|
if (mRuntimeHost)
|
|
mRuntimeHost->ClearReloadRequest();
|
|
|
|
wglMakeCurrent(NULL, NULL);
|
|
LeaveCriticalSection(&pMutex);
|
|
|
|
if (!success)
|
|
{
|
|
if (mRuntimeHost)
|
|
mRuntimeHost->SetCompileStatus(false, compilerErrorMessage);
|
|
MessageBoxA(NULL, compilerErrorMessage, "Slang shader reload failed", MB_OK);
|
|
}
|
|
else
|
|
{
|
|
if (mRuntimeHost)
|
|
mRuntimeHost->SetCompileStatus(true, "Shader compiled successfully.");
|
|
broadcastRuntimeState();
|
|
}
|
|
|
|
return success;
|
|
}
|
|
|
|
void OpenGLComposite::renderEffect()
|
|
{
|
|
PollRuntimeChanges();
|
|
|
|
const bool hasInputSource = !mHasNoInputSource;
|
|
const std::vector<RuntimeRenderState> layerStates = mRuntimeHost ? mRuntimeHost->GetLayerRenderStates(mInputFrameWidth, mInputFrameHeight) : std::vector<RuntimeRenderState>();
|
|
const unsigned historyCap = mRuntimeHost ? mRuntimeHost->GetMaxTemporalHistoryFrames() : 0;
|
|
mRenderPass->Render(
|
|
hasInputSource,
|
|
layerStates,
|
|
mInputFrameWidth,
|
|
mInputFrameHeight,
|
|
historyCap,
|
|
[this](const RuntimeRenderState& state, LayerProgram::TextBinding& textBinding, std::string& error) {
|
|
return mShaderPrograms->UpdateTextBindingTexture(state, textBinding, error);
|
|
},
|
|
[this](const RuntimeRenderState& state, unsigned availableSourceHistoryLength, unsigned availableTemporalHistoryLength) {
|
|
return mShaderPrograms->UpdateGlobalParamsBuffer(state, availableSourceHistoryLength, availableTemporalHistoryLength);
|
|
});
|
|
}
|
|
|
|
bool OpenGLComposite::PollRuntimeChanges()
|
|
{
|
|
if (!mRuntimeHost)
|
|
return true;
|
|
|
|
bool registryChanged = false;
|
|
bool reloadRequested = false;
|
|
std::string runtimeError;
|
|
if (!mRuntimeHost->PollFileChanges(registryChanged, reloadRequested, runtimeError))
|
|
{
|
|
mRuntimeHost->SetCompileStatus(false, runtimeError);
|
|
broadcastRuntimeState();
|
|
return false;
|
|
}
|
|
|
|
if (registryChanged)
|
|
broadcastRuntimeState();
|
|
|
|
if (!reloadRequested)
|
|
return true;
|
|
|
|
char compilerErrorMessage[1024] = {};
|
|
if (!mShaderPrograms->CompileLayerPrograms(mInputFrameWidth, mInputFrameHeight, sizeof(compilerErrorMessage), compilerErrorMessage))
|
|
{
|
|
mRuntimeHost->SetCompileStatus(false, compilerErrorMessage);
|
|
mRuntimeHost->ClearReloadRequest();
|
|
broadcastRuntimeState();
|
|
return false;
|
|
}
|
|
|
|
mShaderPrograms->ResetTemporalHistoryState();
|
|
broadcastRuntimeState();
|
|
return true;
|
|
}
|
|
|
|
void OpenGLComposite::broadcastRuntimeState()
|
|
{
|
|
if (mControlServer)
|
|
mControlServer->BroadcastState();
|
|
}
|
|
|
|
void OpenGLComposite::resetTemporalHistoryState()
|
|
{
|
|
mShaderPrograms->ResetTemporalHistoryState();
|
|
}
|
|
|
|
bool OpenGLComposite::CheckOpenGLExtensions()
|
|
{
|
|
mRenderer->mFastTransferExtensionAvailable = VideoFrameTransfer::checkFastMemoryTransferAvailable();
|
|
|
|
if (!mRenderer->mFastTransferExtensionAvailable)
|
|
OutputDebugStringA("Fast memory transfer extension not available, using regular OpenGL transfer fallback instead\n");
|
|
|
|
return true;
|
|
}
|
|
|
|
////////////////////////////////////////////
|
|
|