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fractorium/Source/Fractorium/FractoriumRender.cpp
mfeemster 018ba26b5f --User changes 
-Add support for multiple GPU devices.
  --These options are present in the command line and in Fractorium.
 -Change scheme of specifying devices from platform,device to just total device index.
  --Single number on the command line.
  --Change from combo boxes for device selection to a table of all devices in Fractorium.
 -Temporal samples defaults to 100 instead of 1000 which was needless overkill.

--Bug fixes
 -EmberAnimate, EmberRender, FractoriumSettings, FinalRenderDialog: Fix wrong order of arguments to Clamp() when assigning thread priority.
 -VariationsDC.h: Fix NVidia OpenCL compilation error in DCTriangleVariation.
 -FractoriumXformsColor.cpp: Checking for null pixmap pointer is not enough, must also check if the underlying buffer is null via call to QPixmap::isNull().

--Code changes
 -Ember.h: Add case for FLAME_MOTION_NONE and default in ApplyFlameMotion().
 -EmberMotion.h: Call base constructor.
 -EmberPch.h: #pragma once only on Windows.
 -EmberToXml.h:
  --Handle different types of exceptions.
  --Add default cases to ToString().
 -Isaac.h: Remove unused variable in constructor.
 -Point.h: Call base constructor in Color().
 -Renderer.h/cpp:
  --Add bool to Alloc() to only allocate memory for the histogram. Needed for multi-GPU.
  --Make CoordMap() return a const ref, not a pointer.
 -SheepTools.h:
  --Use 64-bit types like the rest of the code already does.
  --Fix some comment misspellings.
 -Timing.h: Make BeginTime(), EndTime(), ElapsedTime() and Format() be const functions.
 -Utils.h:
  --Add new functions Equal() and Split().
  --Handle more exception types in ReadFile().
  --Get rid of most legacy blending of C and C++ argument parsing.
 -XmlToEmber.h:
  --Get rid of most legacy blending of C and C++ code from flam3.
  --Remove some unused variables.
 -EmberAnimate:
  --Support multi-GPU processing that alternates full frames between devices.
  --Use OpenCLInfo instead of OpenCLWrapper for --openclinfo option.
  --Remove bucketT template parameter, and hard code float in its place.
  --If a render fails, exit since there is no point in continuing an animation with a missing frame.
  --Pass variables to threaded save better, which most likely fixes a very subtle bug that existed before.
  --Remove some unused variables.
 -EmberGenome, EmberRender:
  --Support multi-GPU processing that alternates full frames between devices.
  --Use OpenCLInfo instead of OpenCLWrapper for --openclinfo option.
  --Remove bucketT template parameter, and hard code float in its place.
 -EmberRender:
  --Support multi-GPU processing that alternates full frames between devices.
  --Use OpenCLInfo instead of OpenCLWrapper for --openclinfo option.
  --Remove bucketT template parameter, and hard code float in its place.
  --Only print values when not rendering with OpenCL, since they're always 0 in that case.
 -EmberCLPch.h:
  --#pragma once only on Windows.
  --#include <atomic>.
 -IterOpenCLKernelCreator.h: Add new kernel for summing two histograms. This is needed for multi-GPU.
 -OpenCLWrapper.h:
  --Move all OpenCL info related code into its own class OpenCLInfo.
  --Add members to cache the values of global memory size and max allocation size.
 -RendererCL.h/cpp:
  --Redesign to accomodate multi-GPU.
  --Constructor now takes a vector of devices.
  --Remove DumpErrorReport() function, it's handled in the base.
  --ClearBuffer(), ReadPoints(), WritePoints(), ReadHist() and WriteHist() now optionally take a device index as a parameter.
  --MakeDmap() override and m_DmapCL member removed because it no longer applies since the histogram is always float since the last commit.
  --Add new function SumDeviceHist() to sum histograms from two devices by first copying to a temporary on the host, then a temporary on the device, then summing.
  --m_Calls member removed, as it's now per-device.
  --OpenCLWrapper removed.
  --m_Seeds member is now a vector of vector of seeds, to accomodate a separate and different array of seeds for each device.
  --Added member m_Devices, a vector of unique_ptr of RendererCLDevice.
 -EmberCommon.h
  --Added Devices() function to convert from a vector of device indices to a vector of platform,device indices.
  --Changed CreateRenderer() to accept a vector of devices to create a single RendererCL which will split work across multiple devices.
  --Added CreateRenderers() function to accept a vector of devices to create multiple RendererCL, each which will render on a single device.
  --Add more comments to some existing functions.
 -EmberCommonPch.h: #pragma once only on Windows.
 -EmberOptions.h:
  --Remove --platform option, it's just sequential device number now with the --device option.
  --Make --out be OPT_USE_RENDER instead of OPT_RENDER_ANIM since it's an error condition when animating. It makes no sense to write all frames to a single image.
  --Add Devices() function to parse comma separated --device option string and return a vector of device indices.
  --Make int and uint types be 64-bit, so intmax_t and size_t.
  --Make better use of macros.
 -JpegUtils.h: Make string parameters to WriteJpeg() and WritePng() be const ref.
 -All project files: Turn off buffer security check option in Visual Studio (/Gs-)
 -deployment.pri: Remove the line OTHER_FILES +=, it's pointless and was causing problems.
 -Ember.pro, EmberCL.pro: Add CONFIG += plugin, otherwise it wouldn't link.
 -EmberCL.pro: Add new files for multi-GPU support.
 -build_all.sh: use -j4 and QMAKE=${QMAKE:/usr/bin/qmake}
 -shared_settings.pri:
  -Add version string.
  -Remove old DESTDIR definitions.
  -Add the following lines or else nothing would build:
   CONFIG(release, debug|release) {
    CONFIG += warn_off
    DESTDIR = ../../../Bin/release
   }

   CONFIG(debug, debug|release) {
    DESTDIR = ../../../Bin/debug
   }

   QMAKE_POST_LINK += $$quote(cp --update ../../../Data/flam3-palettes.xml $${DESTDIR}$$escape_expand(\n\t))
   LIBS += -L/usr/lib -lpthread
 -AboutDialog.ui: Another futile attempt to make it look correct on Linux.
 -FinalRenderDialog.h/cpp:
  --Add support for multi-GPU.
  --Change from combo boxes for device selection to a table of all devices.
  --Ensure device selection makes sense.
  --Remove "FinalRender" prefix of various function names, it's implied given the context.
 -FinalRenderEmberController.h/cpp:
  --Add support for multi-GPU.
  --Change m_FinishedImageCount to be atomic.
  --Move CancelRender() from the base to FinalRenderEmberController<T>.
  --Refactor RenderComplete() to omit any progress related functionality or image saving since it can be potentially ran in a thread.
  --Consolidate setting various renderer fields into SyncGuiToRenderer().
 -Fractorium.cpp: Allow for resizing of the options dialog to show the entire device table.
 -FractoriumCommon.h: Add various functions to handle a table showing the available OpenCL devices on the system.
 -FractoriumEmberController.h/cpp: Remove m_FinalImageIndex, it's no longer needed.
 -FractoriumRender.cpp: Scale the interactive sub batch count and quality by the number of devices used.
 -FractoriumSettings.h/cpp:
  --Temporal samples defaults to 100 instead of 1000 which was needless overkill.
  --Add multi-GPU support, remove old device,platform pair.
 -FractoriumToolbar.cpp: Disable OpenCL toolbar button if there are no devices present on the system.
 -FractoriumOptionsDialog.h/cpp:
  --Add support for multi-GPU.
  --Consolidate more assignments in DataToGui().
  --Enable/disable CPU/OpenCL items in response to OpenCL checkbox event.
 -Misc: Convert almost everything to size_t for unsigned, intmax_t for signed.
2015-09-12 18:33:45 -07:00

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#include "FractoriumPch.h"
#include "Fractorium.h"
/// <summary>
/// Return whether the render timer is running.
/// </summary>
/// <returns>True if running, else false.</returns>
bool FractoriumEmberControllerBase::RenderTimerRunning()
{
return m_RenderTimer && m_RenderTimer->isActive();
}
/// <summary>
/// Start the render timer.
/// If a renderer has not been created yet, it will be created from the options.
/// </summary>
void FractoriumEmberControllerBase::StartRenderTimer()
{
if (m_RenderTimer)
{
UpdateRender();
m_RenderTimer->start();
m_RenderElapsedTimer.Tic();
}
}
/// <summary>
/// Start the render timer after a short delay.
/// If the timer is already running, stop it first.
/// This is useful for stopping and restarting the render
/// process in response to things like a window resize.
/// </summary>
void FractoriumEmberControllerBase::DelayedStartRenderTimer()
{
DeleteRenderer();
if (m_RenderRestartTimer)
{
m_RenderRestartTimer->setSingleShot(true);
m_RenderRestartTimer->start(300);//Will stop the timer if it's already running, and start again.
}
}
/// <summary>
/// Stop the render timer and abort the rendering process.
/// Optionally block until stopping is complete.
/// </summary>
/// <param name="wait">True to block, else false.</param>
void FractoriumEmberControllerBase::StopRenderTimer(bool wait)
{
if (m_RenderTimer)
m_RenderTimer->stop();
if (m_Renderer.get())
m_Renderer->Abort();
if (wait)
{
while (m_Rendering || RenderTimerRunning() || (Renderer() && (!m_Renderer->Aborted() || m_Renderer->InRender())))
QApplication::processEvents();
}
}
/// <summary>
/// Stop all timers, rendering and drawing and block until they are done.
/// </summary>
void FractoriumEmberControllerBase::Shutdown()
{
StopRenderTimer(true);
ClearFinalImages();
while(m_Fractorium->ui.GLDisplay->Drawing())
QApplication::processEvents();
}
/// <summary>
/// Clear the output image buffers.
/// </summary>
void FractoriumEmberControllerBase::ClearFinalImages()
{
Memset(m_FinalImage);
//Unsure if we should also call RendererCL::ClearFinal() as well. At the moment it seems unnecessary.
}
/// <summary>
/// Update the state of the renderer.
/// Upon changing values, some intelligence is used to avoid blindly restarting the
/// entire iteration proceess every time a value changes. This is because some values don't affect the
/// iteration, and only affect filtering and final accumulation. They are broken into three categories:
/// 1) Restart the entire process.
/// 2) Log/density filter, then final accum.
/// 3) Final accum only.
/// 4) Continue iterating.
/// </summary>
/// <param name="action">The action to take</param>
void FractoriumEmberControllerBase::UpdateRender(eProcessAction action)
{
AddProcessAction(action);
m_RenderElapsedTimer.Tic();
}
/// <summary>
/// Call Shutdown() then delete the renderer and clear the textures in the output window if there is one.
/// </summary>
void FractoriumEmberControllerBase::DeleteRenderer()
{
Shutdown();
m_Renderer.reset();
if (GLController())
GLController()->ClearWindow();
}
/// <summary>
/// Save the current render results to a file.
/// This could benefit from QImageWriter, however its compression capabilities are
/// severely lacking. A Png file comes out larger than a bitmap, so instead use the
/// Png and Jpg wrapper functions from the command line programs.
/// This will embed the id, url and nick fields from the options in the image comments.
/// </summary>
/// <param name="filename">The full path and filename</param>
/// <param name="comments">The comments to save in the png or jpg</param>
/// <param name="pixels">The buffer containing the pixels</param>
/// <param name="width">The width in pixels of the image</param>
/// <param name="height">The height in pixels of the image</param>
/// <param name="channels">The number of channels, 3 or 4.</param>
/// <param name="bpc">The bytes per channel, almost always 1.</param>
void FractoriumEmberControllerBase::SaveCurrentRender(const QString& filename, const EmberImageComments& comments, vector<byte>& pixels, size_t width, size_t height, size_t channels, size_t bpc)
{
if (filename != "")
{
bool b = false;
uint i, j;
byte* data = nullptr;
vector<byte> vecRgb;
QFileInfo fileInfo(filename);
QString suffix = fileInfo.suffix();
FractoriumSettings* settings = m_Fractorium->m_Settings;
//Ensure dimensions are valid.
if (pixels.size() < (width * height * channels * bpc))
{
m_Fractorium->ShowCritical("Save Failed", "Dimensions didn't match, not saving.", true);
return;
}
data = pixels.data();//Png and channels == 4.
if ((suffix == "jpg" || suffix == "bmp") && channels)
{
RgbaToRgb(pixels, vecRgb, width, height);
data = vecRgb.data();
}
string s = filename.toStdString();
string id = settings->Id().toStdString();
string url = settings->Url().toStdString();
string nick = settings->Nick().toStdString();
if (suffix == "png")
b = WritePng(s.c_str(), data, width, height, 1, true, comments, id, url, nick);
else if (suffix == "jpg")
b = WriteJpeg(s.c_str(), data, width, height, 100, true, comments, id, url, nick);
else if (suffix == "bmp")
b = WriteBmp(s.c_str(), data, width, height);
else
{
m_Fractorium->ShowCritical("Save Failed", "Unrecognized format " + suffix + ", not saving.", true);
return;
}
if (b)
settings->SaveFolder(fileInfo.canonicalPath());
else
m_Fractorium->ShowCritical("Save Failed", "Could not save file, try saving to a different folder.", true);
}
}
/// <summary>
/// Add a process action to the list of actions to take.
/// Called in response to the user changing something on the GUI.
/// </summary>
/// <param name="action">The action for the renderer to take</param>
void FractoriumEmberControllerBase::AddProcessAction(eProcessAction action)
{
m_Cs.Enter();
m_ProcessActions.push_back(action);
if (m_Renderer.get())
m_Renderer->Abort();
m_Cs.Leave();
}
/// <summary>
/// Condense and clear the process actions into a single action and return.
/// Many actions may be specified, but only the one requiring the greatest amount
/// of processing matters. Extract and return the greatest and clear the vector.
/// </summary>
/// <returns>The most significant processing action desired</returns>
eProcessAction FractoriumEmberControllerBase::CondenseAndClearProcessActions()
{
m_Cs.Enter();
eProcessAction action = NOTHING;
for (auto a : m_ProcessActions)
if (a > action)
action = a;
m_ProcessActions.clear();
m_Cs.Leave();
return action;
}
/// <summary>
/// Render progress callback function to update progress bar.
/// </summary>
/// <param name="ember">The ember currently being rendered</param>
/// <param name="foo">An extra dummy parameter</param>
/// <param name="fraction">The progress fraction from 0-100</param>
/// <param name="stage">The stage of iteration. 1 is iterating, 2 is density filtering, 2 is final accumulation.</param>
/// <param name="etaMs">The estimated milliseconds to completion of the current stage</param>
/// <returns>0 if the user has changed anything on the GUI, else 1 to continue rendering.</returns>
template <typename T>
int FractoriumEmberController<T>::ProgressFunc(Ember<T>& ember, void* foo, double fraction, int stage, double etaMs)
{
QString status;
m_Fractorium->m_ProgressBar->setValue(int(fraction));//Only really applies to iter and filter, because final accum only gives progress 0 and 100.
if (stage == 0)
status = "Iterating";
else if (stage == 1)
status = "Density Filtering";
else if (stage == 2)
status = "Spatial Filtering + Final Accumulation";
m_Fractorium->m_RenderStatusLabel->setText(status);
return m_ProcessActions.empty() ? 1 : 0;//If they've done anything, abort.
}
/// <summary>
/// Clear the undo list as well as the undo/redo index and state.
/// </summary>
template <typename T>
void FractoriumEmberController<T>::ClearUndo()
{
m_UndoIndex = 0;
m_UndoList.clear();
m_EditState = REGULAR_EDIT;
m_LastEditWasUndoRedo = false;
m_Fractorium->ui.ActionUndo->setEnabled(false);
m_Fractorium->ui.ActionRedo->setEnabled(false);
}
/// <summary>
/// The hierarchy/order of sizes is like so:
/// Ember
/// GL Widget
/// Texture (passed to RendererCL)
/// Viewport
/// Since this uses m_GL->SizesMatch(), which uses the renderer's dimensions, this
/// must be called after the renderer has set the current ember.
/// </summary>
/// <returns>True if dimensions had to be resized due to a mismatch, else false.</returns>
template <typename T>
bool FractoriumEmberController<T>::SyncSizes()
{
bool changed = false;
GLWidget* gl = m_Fractorium->ui.GLDisplay;
RendererCL<T, float>* rendererCL = nullptr;
if (!m_GLController->SizesMatch())
{
m_GLController->ClearWindow();
gl->SetDimensions(m_Ember.m_FinalRasW, m_Ember.m_FinalRasH);
gl->Allocate();
gl->SetViewport();
if (m_Renderer->RendererType() == OPENCL_RENDERER && (rendererCL = dynamic_cast<RendererCL<T, float>*>(m_Renderer.get())))
rendererCL->SetOutputTexture(gl->OutputTexID());
m_Fractorium->CenterScrollbars();
changed = true;
}
return changed;
}
/// <summary>
/// The main rendering function.
/// Called whenever the event loop is idle.
/// </summary>
/// <returns>True if nothing went wrong, else false.</returns>
template <typename T>
bool FractoriumEmberController<T>::Render()
{
m_Rendering = true;
bool success = true;
GLWidget* gl = m_Fractorium->ui.GLDisplay;
RendererCL<T, float>* rendererCL = nullptr;
eProcessAction action = CondenseAndClearProcessActions();
if (m_Renderer->RendererType() == OPENCL_RENDERER)
rendererCL = dynamic_cast<RendererCL<T, float>*>(m_Renderer.get());
//Force temporal samples to always be 1. Perhaps change later when animation is implemented.
m_Ember.m_TemporalSamples = 1;
//Take care of solo xforms and set the current ember and action.
if (action != NOTHING)
{
int i, solo = m_Fractorium->ui.CurrentXformCombo->property("soloxform").toInt();
if (solo != -1)
{
m_TempOpacities.resize(m_Ember.TotalXformCount());
for (i = 0; i < m_Ember.TotalXformCount(); i++)
{
m_TempOpacities[i] = m_Ember.GetTotalXform(i)->m_Opacity;
m_Ember.GetTotalXform(i)->m_Opacity = i == solo ? 1 : 0;
}
}
m_Renderer->SetEmber(m_Ember, action);
if (solo != -1)
{
for (i = 0; i < m_Ember.TotalXformCount(); i++)
{
m_Ember.GetTotalXform(i)->m_Opacity = m_TempOpacities[i];
}
}
}
//Ensure sizes are equal and if not, update dimensions.
if (SyncSizes())
{
action = FULL_RENDER;
return true;
}
//Determining if a completely new rendering process is being started.
bool iterBegin = ProcessState() == NONE;
if (iterBegin)
{
if (m_Renderer->RendererType() == CPU_RENDERER)
m_SubBatchCount = m_Fractorium->m_Settings->CpuSubBatch();
else if (m_Renderer->RendererType() == OPENCL_RENDERER)
m_SubBatchCount = m_Fractorium->m_Settings->OpenCLSubBatch();
m_Fractorium->m_ProgressBar->setValue(0);
m_Fractorium->m_RenderStatusLabel->setText("Starting");
}
//If the rendering process hasn't finished, render with the current specified action.
if (ProcessState() != ACCUM_DONE)
{
//if (m_Renderer->Run(m_FinalImage, 0) == RENDER_OK)//Full, non-incremental render for debugging.
if (m_Renderer->Run(m_FinalImage, 0, m_SubBatchCount, (iterBegin || m_Fractorium->m_Settings->ContinuousUpdate())) == RENDER_OK)//Force output on iterBegin or if the settings specify to always do it.
{
//The amount to increment sub batch while rendering proceeds is purely empirical.
//Change later if better values can be derived/observed.
if (m_Renderer->RendererType() == OPENCL_RENDERER)
{
if (m_SubBatchCount < (4 * m_Devices.size()))//More than 3 with OpenCL gives a sluggish UI.
m_SubBatchCount += m_Devices.size();
}
else
{
if (m_SubBatchCount < 5)
m_SubBatchCount++;
else if (m_SubBatchCount < 105)//More than 105 with CPU gives a sluggish UI.
m_SubBatchCount += 25;
}
//Rendering has finished, update final stats.
if (ProcessState() == ACCUM_DONE)
{
EmberStats stats = m_Renderer->Stats();
QString iters = ToString<qulonglong>(stats.m_Iters);
QString scaledQuality = ToString(uint(m_Renderer->ScaledQuality()));
string renderTime = m_RenderElapsedTimer.Format(m_RenderElapsedTimer.Toc());
m_Fractorium->m_ProgressBar->setValue(100);
//Only certain stats can be reported with OpenCL.
if (m_Renderer->RendererType() == OPENCL_RENDERER)
{
m_Fractorium->m_RenderStatusLabel->setText("Iters: " + iters + ". Scaled quality: " + scaledQuality + ". Total time: " + QString::fromStdString(renderTime));
}
else
{
double percent = double(stats.m_Badvals) / double(stats.m_Iters);
QString badVals = ToString<qulonglong>(stats.m_Badvals);
QString badPercent = QLocale::system().toString(percent * 100, 'f', 2);
m_Fractorium->m_RenderStatusLabel->setText("Iters: " + iters + ". Scaled quality: " + scaledQuality + ". Bad values: " + badVals + " (" + badPercent + "%). Total time: " + QString::fromStdString(renderTime));
}
if (m_LastEditWasUndoRedo && (m_UndoIndex == m_UndoList.size() - 1))//Traversing through undo list, reached the end, so put back in regular edit mode.
{
m_EditState = REGULAR_EDIT;
}
else if (m_EditState == REGULAR_EDIT)//Regular edit, just add to the end of the undo list.
{
m_UndoList.push_back(m_Ember);
m_UndoIndex = m_UndoList.size() - 1;
m_Fractorium->ui.ActionUndo->setEnabled(m_UndoList.size() > 1);
m_Fractorium->ui.ActionRedo->setEnabled(false);
if (m_UndoList.size() >= UNDO_SIZE)
m_UndoList.pop_front();
}
else if (!m_LastEditWasUndoRedo && m_UndoIndex < m_UndoList.size() - 1)//They were anywhere but the end of the undo list, then did a manual edit, so clear the undo list.
{
Ember<T> ember(m_UndoList[m_UndoIndex]);
ClearUndo();
m_UndoList.push_back(ember);
m_UndoList.push_back(m_Ember);
m_UndoIndex = m_UndoList.size() - 1;
m_Fractorium->ui.ActionUndo->setEnabled(true);
m_Fractorium->ui.ActionRedo->setEnabled(false);
}
m_LastEditWasUndoRedo = false;
m_Fractorium->UpdateHistogramBounds();//Mostly of engineering interest.
FillSummary();//Only update summary on render completion since it's not the type of thing the user needs real-time updates on.
}
//Update the GL window on start because the output will be forced.
//Update it on finish because the rendering process is completely done.
if (iterBegin || ProcessState() == ACCUM_DONE)
{
if (m_FinalImage.size() == m_Renderer->FinalBufferSize())//Make absolutely sure the correct amount of data is passed.
gl->update();
//gl->repaint();
//m_Fractorium->update();
//m_Fractorium->ui.GLParentScrollArea->update();
//Uncomment for debugging kernel build and execution errors.
//m_Fractorium->ui.InfoRenderingTextEdit->setText(QString::fromStdString(m_Fractorium->m_Wrapper.DumpInfo()));
//if (rendererCL)
//{
// string s = "OpenCL Kernels: \r\n" + rendererCL->IterKernel() + "\r\n" + rendererCL->DEKernel() + "\r\n" + rendererCL->FinalAccumKernel();
//
// QMetaObject::invokeMethod(m_Fractorium->ui.InfoRenderingTextEdit, "setText", Qt::QueuedConnection, Q_ARG(const QString&, QString::fromStdString(s)));
//}
}
}
else//Something went very wrong, show error report.
{
vector<string> errors = m_Renderer->ErrorReport();
success = false;
m_FailedRenders++;
m_Fractorium->m_RenderStatusLabel->setText("Rendering failed, see info tab. Try changing parameters.");
m_Fractorium->ErrorReportToQTextEdit(errors, m_Fractorium->ui.InfoRenderingTextEdit);
m_Renderer->ClearErrorReport();
if (m_FailedRenders >= 3)
{
m_Rendering = false;
StopRenderTimer(true);
m_Fractorium->m_RenderStatusLabel->setText("Rendering failed 3 or more times, stopping all rendering, see info tab. Try changing renderer types.");
ClearFinalImages();
m_GLController->ClearWindow();
if (rendererCL)
{
//string s = "OpenCL Kernels: \r\n" + rendererCL->IterKernel() + "\r\n" + rendererCL->DEKernel() + "\r\n" + rendererCL->FinalAccumKernel();
rendererCL->ClearFinal();
//QMetaObject::invokeMethod(m_Fractorium->ui.InfoRenderingTextEdit, "setText", Qt::QueuedConnection, Q_ARG(const QString&, QString::fromStdString(s)));
}
}
}
}
//Upon finishing, or having nothing to do, rest.
if (ProcessState() == ACCUM_DONE)
QThread::msleep(1);
//QApplication::processEvents();
m_Rendering = false;
return success;
}
/// <summary>
/// Stop rendering and initialize a new renderer, using the specified type.
/// Rendering will be left in a stopped state. The caller is responsible for restarting the render loop again.
/// </summary>
/// <param name="renderType">The type of render to create</param>
/// <param name="devices">The platform,device index pairs of the devices to use</param>
/// <param name="shared">True if shared with OpenGL, else false. Default: true.</param>
/// <returns>True if nothing went wrong, else false.</returns>
template <typename T>
bool FractoriumEmberController<T>::CreateRenderer(eRendererType renderType, const vector<pair<size_t, size_t>>& devices, bool shared)
{
bool ok = true;
FractoriumSettings* s = m_Fractorium->m_Settings;
GLWidget* gl = m_Fractorium->ui.GLDisplay;
if (!m_Renderer.get() || (m_Renderer->RendererType() != renderType) || !Equal(m_Devices, devices))
{
EmberReport emberReport;
vector<string> errorReport;
DeleteRenderer();//Delete the renderer and refresh the textures.
//Before starting, must take care of allocations.
gl->Allocate(true);//Forcing a realloc of the texture is necessary on AMD, but not on nVidia.
m_Renderer = unique_ptr<EmberNs::RendererBase>(::CreateRenderer<T>(renderType, devices, shared, gl->OutputTexID(), emberReport));//Always make bucket type float.
errorReport = emberReport.ErrorReport();
if (errorReport.empty())
{
m_Devices = devices;
m_OutputTexID = gl->OutputTexID();
m_Shared = shared;
}
else
{
ok = false;
m_Fractorium->ShowCritical("Renderer Creation Error", "Could not create requested renderer, fallback CPU renderer created. See info tab for details.");
m_Fractorium->ErrorReportToQTextEdit(errorReport, m_Fractorium->ui.InfoRenderingTextEdit);
}
}
if (m_Renderer.get())
{
m_RenderType = m_Renderer->RendererType();
if (m_RenderType == OPENCL_RENDERER)
{
auto val = 30 * m_Fractorium->m_Settings->Devices().size();
m_Fractorium->m_QualitySpin->DoubleClickZero(val);
m_Fractorium->m_QualitySpin->DoubleClickNonZero(val);
if (m_Fractorium->m_QualitySpin->value() < val)
m_Fractorium->m_QualitySpin->setValue(val);
}
else
{
m_Fractorium->m_QualitySpin->DoubleClickZero(10);
m_Fractorium->m_QualitySpin->DoubleClickNonZero(10);
if (m_Fractorium->m_QualitySpin->value() > 10)
m_Fractorium->m_QualitySpin->setValue(10);
}
m_Renderer->Callback(this);
m_Renderer->NumChannels(4);//Always using 4 since the GL texture is RGBA.
m_Renderer->ReclaimOnResize(true);
m_Renderer->SetEmber(m_Ember);//Give it an initial ember, will be updated many times later.
m_Renderer->EarlyClip(s->EarlyClip());
m_Renderer->YAxisUp(s->YAxisUp());
m_Renderer->ThreadCount(s->ThreadCount());
m_Renderer->Transparency(s->Transparency());
if (m_Renderer->RendererType() == CPU_RENDERER)
m_Renderer->InteractiveFilter(s->CpuDEFilter() ? FILTER_DE : FILTER_LOG);
else
m_Renderer->InteractiveFilter(s->OpenCLDEFilter() ? FILTER_DE : FILTER_LOG);
if ((m_Renderer->EarlyClip() != m_PreviewRenderer->EarlyClip()) ||
(m_Renderer->YAxisUp() != m_PreviewRenderer->YAxisUp()))
{
StopPreviewRender();
m_PreviewRenderer->EarlyClip(m_Renderer->EarlyClip());
m_PreviewRenderer->YAxisUp(m_Renderer->YAxisUp());
RenderPreviews();
}
m_FailedRenders = 0;
m_RenderElapsedTimer.Tic();
//Leave rendering in a stopped state. The caller is responsible for restarting the render loop again.
}
else
{
ok = false;
m_Fractorium->ShowCritical("Renderer Creation Error", "Creating a basic CPU renderer failed, something is catastrophically wrong. Exiting program.");
QApplication::quit();
}
return ok;
}
/// <summary>
/// Wrapper to stop the timer, shutdown the controller and recreate, then restart the controller and renderer from the options.
/// </summary>
void Fractorium::ShutdownAndRecreateFromOptions()
{
//First completely stop what the current rendering process is doing.
m_Controller->Shutdown();
StartRenderTimer();//This will recreate the controller and/or the renderer from the options if necessary, then start the render timer.
m_Settings->sync();
}
/// <summary>
/// Create a new renderer from the options.
/// </summary>
/// <returns>True if nothing went wrong, else false.</returns>
bool Fractorium::CreateRendererFromOptions()
{
bool ok = true;
bool useOpenCL = m_Info.Ok() && m_Settings->OpenCL();
auto v = Devices(m_Settings->Devices());
//The most important option to process is what kind of renderer is desired, so do it first.
if (!m_Controller->CreateRenderer((useOpenCL && !v.empty()) ? OPENCL_RENDERER : CPU_RENDERER, v))
{
//If using OpenCL, will only get here if creating RendererCL failed, but creating a backup CPU Renderer succeeded.
ShowCritical("Renderer Creation Error", "Error creating renderer, most likely a GPU problem. Using CPU instead.");
m_Settings->OpenCL(false);
m_OptionsDialog->ui.OpenCLCheckBox->setChecked(false);
m_FinalRenderDialog->ui.FinalRenderOpenCLCheckBox->setChecked(false);
ok = false;
}
return ok;
}
/// <summary>
/// Create a new controller from the options.
/// This does not create the internal renderer or start the timers.
/// </summary>
/// <returns>True if successful, else false.</returns>
bool Fractorium::CreateControllerFromOptions()
{
bool ok = true;
size_t elementSize =
#ifdef DO_DOUBLE
m_Settings->Double() ? sizeof(double) :
#endif
sizeof(float);
if (!m_Controller.get() || (m_Controller->SizeOfT() != elementSize))
{
double hue = m_PaletteHueSpin->value();
double sat = m_PaletteSaturationSpin->value();
double bright = m_PaletteBrightnessSpin->value();
double con = m_PaletteContrastSpin->value();
double blur = m_PaletteBlurSpin->value();
double freq = m_PaletteFrequencySpin->value();
#ifdef DO_DOUBLE
Ember<double> ed;
EmberFile<double> efd;
Palette<double> tempPalette;
#else
Ember<float> ed;
EmberFile<float> efd;
Palette<float> tempPalette;
#endif
QModelIndex index = ui.LibraryTree->currentIndex();
//First check if a controller has already been created, and if so, save its embers and gracefully shut it down.
if (m_Controller.get())
{
m_Controller->CopyTempPalette(tempPalette);//Convert float to double or save double verbatim;
//Replace below with this once LLVM fixes a crash in their compiler with default lambda parameters.//TODO
//m_Controller->CopyEmber(ed);
//m_Controller->CopyEmberFile(efd);
#ifdef DO_DOUBLE
m_Controller->CopyEmber(ed, [&](Ember<double>& ember) { });
m_Controller->CopyEmberFile(efd, [&](Ember<double>& ember) { });
#else
m_Controller->CopyEmber(ed, [&](Ember<float>& ember) { });
m_Controller->CopyEmberFile(efd, [&](Ember<float>& ember) { });
#endif
m_Controller->Shutdown();
}
#ifdef DO_DOUBLE
if (m_Settings->Double())
m_Controller = unique_ptr<FractoriumEmberControllerBase>(new FractoriumEmberController<double>(this));
else
#endif
m_Controller = unique_ptr<FractoriumEmberControllerBase>(new FractoriumEmberController<float>(this));
//Restore the ember and ember file.
if (m_Controller.get())
{
ed.m_Palette = tempPalette;//Restore base temp palette. Adjustments will be then be applied and stored back in in m_Ember.m_Palette below.
m_Controller->SetEmber(ed);//Convert float to double or set double verbatim. This will assign m_Ember.m_Palette (which was just tempPalette) to m_TempPalette.
m_Controller->SetEmberFile(efd);
//Setting these and updating the GUI overwrites the work of clearing them done in SetEmber() above.
//It's a corner case, but doesn't seem to matter.
m_PaletteHueSpin->SetValueStealth(hue);
m_PaletteSaturationSpin->SetValueStealth(sat);
m_PaletteBrightnessSpin->SetValueStealth(bright);
m_PaletteContrastSpin->SetValueStealth(con);
m_PaletteBlurSpin->SetValueStealth(blur);
m_PaletteFrequencySpin->SetValueStealth(freq);
m_Controller->PaletteAdjust();//Applies the adjustments to temp and saves in m_Ember.m_Palette, then fills in the palette preview widget.
//Template specific palette table and variations tree setup in controller constructor, but
//must manually setup the library tree here because it's after the embers were assigned.
//Passing row re-selects the item that was previously selected.
//This will eventually call FillParamTablesAndPalette(), which in addition to filling in various fields,
//will apply the palette adjustments.
m_Controller->FillLibraryTree(index.row());
}
}
return m_Controller.get() != nullptr;
}
/// <summary>
/// Start the render timer.
/// If a renderer has not been created yet, or differs form the options, it will first be created from the options.
/// </summary>
void Fractorium::StartRenderTimer()
{
//Starting the render timer, either for the first time
//or from a paused state, such as resizing or applying new options.
CreateControllerFromOptions();
if (m_Controller.get())
{
//On program startup, the renderer does not get initialized until now.
CreateRendererFromOptions();
if (m_Controller->Renderer())
m_Controller->StartRenderTimer();
}
}
/// <summary>
/// Idle timer event which calls the controller's Render() function.
/// </summary>
void Fractorium::IdleTimer() { m_Controller->Render(); }
/// <summary>
/// Thin wrapper to determine if the controllers have been properly initialized.
/// </summary>
/// <returns>True if the ember controller and GL controllers are both not nullptr, else false.</returns>
bool Fractorium::ControllersOk() { return m_Controller.get() && m_Controller->GLController(); }
template class FractoriumEmberController<float>;
#ifdef DO_DOUBLE
template class FractoriumEmberController<double>;
#endif
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