565 lines
19 KiB
C++
565 lines
19 KiB
C++
/* -LICENSE-START-
|
|
** Copyright (c) 2012 Blackmagic Design
|
|
**
|
|
** Permission is hereby granted, free of charge, to any person or organization
|
|
** obtaining a copy of the software and accompanying documentation (the
|
|
** "Software") to use, reproduce, display, distribute, sub-license, execute,
|
|
** and transmit the Software, and to prepare derivative works of the Software,
|
|
** and to permit third-parties to whom the Software is furnished to do so, in
|
|
** accordance with:
|
|
**
|
|
** (1) if the Software is obtained from Blackmagic Design, the End User License
|
|
** Agreement for the Software Development Kit ("EULA") available at
|
|
** https://www.blackmagicdesign.com/EULA/DeckLinkSDK; or
|
|
**
|
|
** (2) if the Software is obtained from any third party, such licensing terms
|
|
** as notified by that third party,
|
|
**
|
|
** and all subject to the following:
|
|
**
|
|
** (3) the copyright notices in the Software and this entire statement,
|
|
** including the above license grant, this restriction and the following
|
|
** disclaimer, must be included in all copies of the Software, in whole or in
|
|
** part, and all derivative works of the Software, unless such copies or
|
|
** derivative works are solely in the form of machine-executable object code
|
|
** generated by a source language processor.
|
|
**
|
|
** (4) THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
|
|
** OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
** FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT. IN NO EVENT
|
|
** SHALL THE COPYRIGHT HOLDERS OR ANYONE DISTRIBUTING THE SOFTWARE BE LIABLE
|
|
** FOR ANY DAMAGES OR OTHER LIABILITY, WHETHER IN CONTRACT, TORT OR OTHERWISE,
|
|
** ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
|
** DEALINGS IN THE SOFTWARE.
|
|
**
|
|
** A copy of the Software is available free of charge at
|
|
** https://www.blackmagicdesign.com/desktopvideo_sdk under the EULA.
|
|
**
|
|
** -LICENSE-END-
|
|
*/
|
|
|
|
#include "ControlServer.h"
|
|
#include "DeckLinkDisplayMode.h"
|
|
#include "DeckLinkFrameTransfer.h"
|
|
#include "DeckLinkSession.h"
|
|
#include "OpenGLComposite.h"
|
|
#include "GLExtensions.h"
|
|
#include "GlRenderConstants.h"
|
|
#include "OpenGLRenderPass.h"
|
|
#include "OpenGLShaderPrograms.h"
|
|
#include "OscServer.h"
|
|
#include "RuntimeControlBridge.h"
|
|
|
|
#include <memory>
|
|
#include <string>
|
|
#include <vector>
|
|
|
|
OpenGLComposite::OpenGLComposite(HWND hWnd, HDC hDC, HGLRC hRC) :
|
|
hGLWnd(hWnd), hGLDC(hDC), hGLRC(hRC),
|
|
mDeckLink(std::make_unique<DeckLinkSession>()),
|
|
mRenderer(std::make_unique<OpenGLRenderer>())
|
|
{
|
|
InitializeCriticalSection(&pMutex);
|
|
mRuntimeHost = std::make_unique<RuntimeHost>();
|
|
mRenderPass = std::make_unique<OpenGLRenderPass>(*mRenderer);
|
|
mShaderPrograms = std::make_unique<OpenGLShaderPrograms>(*mRenderer, *mRuntimeHost);
|
|
mControlServer = std::make_unique<ControlServer>();
|
|
mOscServer = std::make_unique<OscServer>();
|
|
}
|
|
|
|
OpenGLComposite::~OpenGLComposite()
|
|
{
|
|
mDeckLink->ReleaseResources();
|
|
mRenderer->DestroyResources();
|
|
if (mOscServer)
|
|
mOscServer->Stop();
|
|
if (mControlServer)
|
|
mControlServer->Stop();
|
|
|
|
DeleteCriticalSection(&pMutex);
|
|
}
|
|
|
|
bool OpenGLComposite::InitDeckLink()
|
|
{
|
|
BMDDisplayMode inputDisplayMode = bmdModeHD1080p5994;
|
|
BMDDisplayMode outputDisplayMode = bmdModeHD1080p5994;
|
|
std::string inputDisplayModeName = "1080p59.94";
|
|
std::string outputDisplayModeName = "1080p59.94";
|
|
std::string initFailureReason;
|
|
|
|
if (mRuntimeHost && mRuntimeHost->GetRepoRoot().empty())
|
|
{
|
|
std::string runtimeError;
|
|
if (!mRuntimeHost->Initialize(runtimeError))
|
|
{
|
|
MessageBoxA(NULL, runtimeError.c_str(), "Runtime host failed to initialize", MB_OK);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (mRuntimeHost)
|
|
{
|
|
if (!ResolveConfiguredDisplayMode(mRuntimeHost->GetInputVideoFormat(), mRuntimeHost->GetInputFrameRate(), inputDisplayMode, inputDisplayModeName))
|
|
{
|
|
const std::string error = "Unsupported DeckLink inputVideoFormat/inputFrameRate in config/runtime-host.json: " +
|
|
mRuntimeHost->GetInputVideoFormat() + " / " + mRuntimeHost->GetInputFrameRate();
|
|
MessageBoxA(NULL, error.c_str(), "DeckLink input mode configuration error", MB_OK);
|
|
return false;
|
|
}
|
|
if (!ResolveConfiguredDisplayMode(mRuntimeHost->GetOutputVideoFormat(), mRuntimeHost->GetOutputFrameRate(), outputDisplayMode, outputDisplayModeName))
|
|
{
|
|
const std::string error = "Unsupported DeckLink outputVideoFormat/outputFrameRate in config/runtime-host.json: " +
|
|
mRuntimeHost->GetOutputVideoFormat() + " / " + mRuntimeHost->GetOutputFrameRate();
|
|
MessageBoxA(NULL, error.c_str(), "DeckLink output mode configuration error", MB_OK);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (!mDeckLink->DiscoverDevicesAndModes(inputDisplayMode, outputDisplayMode, inputDisplayModeName, outputDisplayModeName, initFailureReason))
|
|
{
|
|
const char* title = initFailureReason == "Please install the Blackmagic DeckLink drivers to use the features of this application."
|
|
? "This application requires the DeckLink drivers installed."
|
|
: "DeckLink initialization failed";
|
|
MessageBoxA(NULL, initFailureReason.c_str(), title, MB_OK | MB_ICONERROR);
|
|
return false;
|
|
}
|
|
|
|
if (! CheckOpenGLExtensions())
|
|
{
|
|
initFailureReason = "OpenGL extension checks failed.";
|
|
goto error;
|
|
}
|
|
if (mDeckLink->inputFrameWidth != mDeckLink->outputFrameWidth || mDeckLink->inputFrameHeight != mDeckLink->outputFrameHeight)
|
|
{
|
|
mRenderer->SetFastTransferAvailable(false);
|
|
OutputDebugStringA("Input/output dimensions differ; using regular OpenGL transfer fallback instead of fast transfer.\n");
|
|
}
|
|
|
|
if (! InitOpenGLState())
|
|
{
|
|
initFailureReason = "OpenGL state initialization failed.";
|
|
goto error;
|
|
}
|
|
|
|
PublishDeckLinkOutputStatus(mDeckLink->outputModelName.empty()
|
|
? "DeckLink output device selected."
|
|
: ("Selected output device: " + mDeckLink->outputModelName));
|
|
|
|
// Resize window to match output video frame, but scale large formats down by half for viewing.
|
|
if (mDeckLink->outputFrameWidth < 1920)
|
|
resizeWindow(mDeckLink->outputFrameWidth, mDeckLink->outputFrameHeight);
|
|
else
|
|
resizeWindow(mDeckLink->outputFrameWidth / 2, mDeckLink->outputFrameHeight / 2);
|
|
|
|
if (mRenderer->FastTransferAvailable())
|
|
{
|
|
// Initialize fast video frame transfers
|
|
if (! VideoFrameTransfer::initialize(mDeckLink->inputFrameWidth, mDeckLink->inputFrameHeight, mRenderer->CaptureTexture(), mRenderer->OutputTexture()))
|
|
{
|
|
MessageBox(NULL, _T("Cannot initialize video transfers."), _T("VideoFrameTransfer error."), MB_OK);
|
|
goto error;
|
|
}
|
|
}
|
|
|
|
if (!mDeckLink->ConfigureInput(this, hGLDC, hGLRC, inputDisplayMode, initFailureReason))
|
|
{
|
|
goto error;
|
|
}
|
|
if (!mDeckLink->input && mRuntimeHost)
|
|
{
|
|
mRuntimeHost->SetSignalStatus(false, mDeckLink->inputFrameWidth, mDeckLink->inputFrameHeight, mDeckLink->inputDisplayModeName);
|
|
}
|
|
|
|
if (!mDeckLink->ConfigureOutput(this, hGLDC, hGLRC, outputDisplayMode, mRuntimeHost && mRuntimeHost->ExternalKeyingEnabled(), initFailureReason))
|
|
{
|
|
goto error;
|
|
}
|
|
|
|
PublishDeckLinkOutputStatus(mDeckLink->statusMessage);
|
|
|
|
return true;
|
|
|
|
error:
|
|
if (!initFailureReason.empty())
|
|
MessageBoxA(NULL, initFailureReason.c_str(), "DeckLink initialization failed", MB_OK | MB_ICONERROR);
|
|
mDeckLink->ReleaseResources();
|
|
return false;
|
|
}
|
|
|
|
void OpenGLComposite::paintGL()
|
|
{
|
|
if (!TryEnterCriticalSection(&pMutex))
|
|
{
|
|
ValidateRect(hGLWnd, NULL);
|
|
return;
|
|
}
|
|
|
|
mRenderer->PresentToWindow(hGLDC, mDeckLink->outputFrameWidth, mDeckLink->outputFrameHeight);
|
|
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);
|
|
}
|
|
}
|
|
|
|
void OpenGLComposite::PublishDeckLinkOutputStatus(const std::string& statusMessage)
|
|
{
|
|
if (!mRuntimeHost)
|
|
return;
|
|
|
|
if (!statusMessage.empty())
|
|
mDeckLink->statusMessage = statusMessage;
|
|
|
|
mRuntimeHost->SetDeckLinkOutputStatus(
|
|
mDeckLink->outputModelName,
|
|
mDeckLink->supportsInternalKeying,
|
|
mDeckLink->supportsExternalKeying,
|
|
mDeckLink->keyerInterfaceAvailable,
|
|
mRuntimeHost->ExternalKeyingEnabled(),
|
|
mDeckLink->externalKeyingActive,
|
|
mDeckLink->statusMessage);
|
|
}
|
|
|
|
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(mDeckLink->inputFrameWidth, mDeckLink->inputFrameHeight, 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(mDeckLink->inputFrameWidth, mDeckLink->inputFrameHeight, mDeckLink->outputFrameWidth, mDeckLink->outputFrameHeight, 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)
|
|
{
|
|
mDeckLink->hasNoInputSource = hasNoInputSource;
|
|
if (mRuntimeHost)
|
|
mRuntimeHost->SetSignalStatus(!hasNoInputSource, mDeckLink->inputFrameWidth, mDeckLink->inputFrameHeight, mDeckLink->inputDisplayModeName);
|
|
|
|
if (mDeckLink->hasNoInputSource)
|
|
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->FastTransferAvailable())
|
|
{
|
|
CComQIPtr<PinnedMemoryAllocator, &IID_PinnedMemoryAllocator> allocator(inputFrameBuffer);
|
|
if (!allocator || !allocator->transferFrame(videoPixels, mRenderer->CaptureTexture()))
|
|
OutputDebugStringA("Capture: transferFrame() failed\n");
|
|
|
|
allocator->waitForTransferComplete(videoPixels);
|
|
}
|
|
else
|
|
{
|
|
// Use a straightforward texture buffer
|
|
glBindBuffer(GL_PIXEL_UNPACK_BUFFER, mRenderer->UnpinnedTextureBuffer());
|
|
glBufferData(GL_PIXEL_UNPACK_BUFFER, textureSize, videoPixels, GL_DYNAMIC_DRAW);
|
|
glBindTexture(GL_TEXTURE_2D, mRenderer->CaptureTexture());
|
|
|
|
// NULL for last arg indicates use current GL_PIXEL_UNPACK_BUFFER target as texture data
|
|
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, mDeckLink->inputFrameWidth / 2, mDeckLink->inputFrameHeight, 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 = mDeckLink->outputVideoFrameQueue.front();
|
|
mDeckLink->outputVideoFrameQueue.push_back(outputVideoFrame);
|
|
mDeckLink->outputVideoFrameQueue.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->FastTransferAvailable())
|
|
VideoFrameTransfer::beginTextureInUse(VideoFrameTransfer::GPUtoCPU);
|
|
glBindFramebuffer(GL_FRAMEBUFFER, mRenderer->CompositeFramebuffer());
|
|
renderEffect();
|
|
glBindFramebuffer(GL_READ_FRAMEBUFFER, mRenderer->CompositeFramebuffer());
|
|
glBindFramebuffer(GL_DRAW_FRAMEBUFFER, mRenderer->OutputFramebuffer());
|
|
glBlitFramebuffer(0, 0, mDeckLink->inputFrameWidth, mDeckLink->inputFrameHeight, 0, 0, mDeckLink->outputFrameWidth, mDeckLink->outputFrameHeight, GL_COLOR_BUFFER_BIT, GL_LINEAR);
|
|
glBindFramebuffer(GL_FRAMEBUFFER, mRenderer->OutputFramebuffer());
|
|
glFlush();
|
|
if (mRenderer->FastTransferAvailable())
|
|
VideoFrameTransfer::endTextureInUse(VideoFrameTransfer::GPUtoCPU);
|
|
const auto renderEndTime = std::chrono::steady_clock::now();
|
|
if (mRuntimeHost)
|
|
{
|
|
const double frameBudgetMilliseconds = mDeckLink->frameTimescale != 0
|
|
? (static_cast<double>(mDeckLink->frameDuration) * 1000.0) / static_cast<double>(mDeckLink->frameTimescale)
|
|
: 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->FastTransferAvailable())
|
|
{
|
|
// Finished sampling the capture texture for this frame.
|
|
if (!mDeckLink->hasNoInputSource)
|
|
VideoFrameTransfer::endTextureInUse(VideoFrameTransfer::CPUtoGPU);
|
|
|
|
if (! mDeckLink->playoutAllocator->transferFrame(pFrame, mRenderer->OutputTexture()))
|
|
OutputDebugStringA("Playback: transferFrame() failed\n");
|
|
|
|
paintGL();
|
|
|
|
// Wait for transfer to system memory to complete
|
|
mDeckLink->playoutAllocator->waitForTransferComplete(pFrame);
|
|
}
|
|
else
|
|
{
|
|
glBindFramebuffer(GL_READ_FRAMEBUFFER, mRenderer->OutputFramebuffer());
|
|
glReadPixels(0, 0, mDeckLink->outputFrameWidth, mDeckLink->outputFrameHeight, 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)
|
|
mDeckLink->totalPlayoutFrames += 2;
|
|
|
|
// Schedule the next frame for playout
|
|
HRESULT hr = mDeckLink->output->ScheduleVideoFrame(outputVideoFrame, (mDeckLink->totalPlayoutFrames * mDeckLink->frameDuration), mDeckLink->frameDuration, mDeckLink->frameTimescale);
|
|
if (SUCCEEDED(hr))
|
|
mDeckLink->totalPlayoutFrames++;
|
|
|
|
wglMakeCurrent( NULL, NULL );
|
|
|
|
LeaveCriticalSection(&pMutex);
|
|
}
|
|
|
|
bool OpenGLComposite::Start()
|
|
{
|
|
return mDeckLink->Start(mDeckLink->outputFrameHeight);
|
|
}
|
|
|
|
bool OpenGLComposite::Stop()
|
|
{
|
|
if (mOscServer)
|
|
mOscServer->Stop();
|
|
|
|
if (mControlServer)
|
|
mControlServer->Stop();
|
|
|
|
const bool wasExternalKeyingActive = mDeckLink->externalKeyingActive;
|
|
mDeckLink->Stop();
|
|
if (wasExternalKeyingActive)
|
|
PublishDeckLinkOutputStatus("External keying has been disabled.");
|
|
|
|
return true;
|
|
}
|
|
|
|
bool OpenGLComposite::ReloadShader()
|
|
{
|
|
char compilerErrorMessage[1024];
|
|
|
|
EnterCriticalSection(&pMutex);
|
|
wglMakeCurrent(hGLDC, hGLRC);
|
|
|
|
bool success = mShaderPrograms->CompileLayerPrograms(mDeckLink->inputFrameWidth, mDeckLink->inputFrameHeight, 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 = !mDeckLink->hasNoInputSource;
|
|
const std::vector<RuntimeRenderState> layerStates = mRuntimeHost ? mRuntimeHost->GetLayerRenderStates(mDeckLink->inputFrameWidth, mDeckLink->inputFrameHeight) : std::vector<RuntimeRenderState>();
|
|
const unsigned historyCap = mRuntimeHost ? mRuntimeHost->GetMaxTemporalHistoryFrames() : 0;
|
|
mRenderPass->Render(
|
|
hasInputSource,
|
|
layerStates,
|
|
mDeckLink->inputFrameWidth,
|
|
mDeckLink->inputFrameHeight,
|
|
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(mDeckLink->inputFrameWidth, mDeckLink->inputFrameHeight, 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->SetFastTransferAvailable(VideoFrameTransfer::checkFastMemoryTransferAvailable());
|
|
|
|
if (!mRenderer->FastTransferAvailable())
|
|
OutputDebugStringA("Fast memory transfer extension not available, using regular OpenGL transfer fallback instead\n");
|
|
|
|
return true;
|
|
}
|
|
|
|
////////////////////////////////////////////
|
|
|
|
|