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Load all data sets ahead of time.

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This allows for easier flipping through all images.
This commit is contained in:
Bert Peters
2018-04-19 14:17:56 +02:00
parent 08c805377e
commit 03cac53d05
2 changed files with 73 additions and 77 deletions
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135
src/fmri/RenderingState.cpp
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@@ -60,6 +60,46 @@ static void renderLoadingScreen()
restorePerspectiveProjection();
}
typedef std::vector<std::vector<std::pair<std::unique_ptr<LayerVisualisation>, std::unique_ptr<Animation>>>> VisualisationList;
static VisualisationList loadVisualisations(const Options& options)
{
using namespace std;
auto [layerInfo, layerData] = Simulator::loadSimulationData(options);
VisualisationList result;
for (auto &&item : layerData) {
vector<unique_ptr<LayerVisualisation>> layers;
vector<unique_ptr<Animation>> animations;
LayerData* prevData = nullptr;
for (LayerData &layer : item) {
unique_ptr<LayerVisualisation> layerVisualisation(getVisualisationForLayer(layer, layerInfo.at(layer.name())));
if (prevData != nullptr) {
auto animation = getActivityAnimation(*prevData, layer, layerInfo.at(layer.name()), (*layers.rbegin())->nodePositions(), layerVisualisation->nodePositions());
animations.emplace_back(animation);
}
layers.emplace_back(move(layerVisualisation));
prevData = &layer;
}
VisualisationList::value_type dataSet;
for (auto i = 0u; i < layers.size(); ++i) {
auto interaction = i < animations.size() ? move(animations[i]) : nullptr;
dataSet.emplace_back(move(layers[i]), move(interaction));
}
result.push_back(move(dataSet));
}
return result;
}
void RenderingState::move(unsigned char key, bool sprint)
{
float speed = 0.5f;
@@ -233,43 +273,6 @@ void RenderingState::handleMouseAt(int x, int y)
glutPostRedisplay();
}
void RenderingState::queueUpdate()
{
// Make sure that visualisations are cleared in the current thread
layerVisualisations.clear();
interactionAnimations.clear();
visualisationFuture = std::async(std::launch::async, []() {
RenderingState::instance().updateVisualisers();
return true;
});
}
void RenderingState::updateVisualisers()
{
layerVisualisations.clear();
interactionAnimations.clear();
LayerData *prevState = nullptr;
LayerVisualisation *prevVisualisation = nullptr;
for (LayerData &layer : *currentData) {
LayerVisualisation *visualisation = getVisualisationForLayer(layer, layerInfo.at(layer.name()));
if (prevState && prevVisualisation && visualisation) {
auto interaction = getActivityAnimation(*prevState, layer, layerInfo.at(layer.name()),
prevVisualisation->nodePositions(), visualisation->nodePositions());
interactionAnimations.emplace_back(interaction);
}
layerVisualisations.emplace_back(visualisation);
prevVisualisation = visualisation;
prevState = &layer;
}
glutPostRedisplay();
}
void RenderingState::render(float time) const
{
// Clear Color and Depth Buffers
@@ -317,13 +320,16 @@ void RenderingState::drawLayer(float time, unsigned long i) const
{
glPushMatrix();
renderLayerName(currentData->at(i).name());
auto& layer = currentData->at(i);
// TODO: make names available again.
// renderLayerName(currentData->at(i).name());
if (options.renderLayers) {
layerVisualisations[i]->draw(time);
}
if (options.renderInteractions && i < interactionAnimations.size() && interactionAnimations[i]) {
interactionAnimations[i]->draw(time);
}
layer.first->draw(time);
}
if (options.renderInteractions && layer.second) {
layer.second->draw(time);
}
glPopMatrix();
}
@@ -361,7 +367,7 @@ void RenderingState::renderLayerName(const std::string &name) const
glColor3f(0.5, 0.5, 0.5);
auto layerName = name;
layerName += ": ";
layerName += LayerInfo::nameByType(layerInfo.at(name).type());
//layerName += LayerInfo::nameByType(layerInfo.at(name).type());
renderText(layerName);
glTranslatef(0, 0, -10);
@@ -375,19 +381,17 @@ void RenderingState::handleSpecialKey(int key)
}
switch (key) {
case GLUT_KEY_LEFT:
if (currentData == layerData.begin()) {
currentData = layerData.end();
if (currentData == visualisations.begin()) {
currentData = visualisations.end();
}
--currentData;
queueUpdate();
break;
case GLUT_KEY_RIGHT:
++currentData;
if (currentData == layerData.end()) {
currentData = layerData.begin();
if (currentData == visualisations.end()) {
currentData = visualisations.begin();
}
queueUpdate();
break;
case GLUT_KEY_F1:
@@ -420,7 +424,7 @@ void RenderingState::loadOptions(const Options &programOptions)
options.layerAlpha = programOptions.layerTransparancy();
options.interactionAlpha = programOptions.interactionTransparancy();
simulationFuture = std::async(std::launch::async, Simulator::loadSimulationData, programOptions);
loadingFuture = std::async(std::launch::async, loadVisualisations, programOptions);
}
const Color &RenderingState::pathColor() const
@@ -485,19 +489,10 @@ static std::optional<T> awaitCompletion(std::future<T>& f)
void RenderingState::idleFunc()
{
if (isLoading()) {
if (visualisationFuture.valid()) {
auto result = awaitCompletion(visualisationFuture);
if (result) {
loadGLItems();
return;
}
} else if (simulationFuture.valid()) {
auto result = awaitCompletion(simulationFuture);
if (result) {
tie(layerInfo, layerData) = std::move(*result);
currentData = layerData.begin();
queueUpdate();
}
if (auto result = awaitCompletion(loadingFuture); result) {
visualisations = std::move(*result);
loadGLItems();
currentData = visualisations.begin();
}
} else {
if (options.mouse_1_pressed) {
@@ -513,11 +508,17 @@ void RenderingState::idleFunc()
void RenderingState::loadGLItems()
{
std::for_each(layerVisualisations.begin(), layerVisualisations.end(), [](auto& x) { x->glLoad(); });
std::for_each(interactionAnimations.begin(), interactionAnimations.end(), [](auto& x) { if (x) x->glLoad(); });
for (auto &item : visualisations) {
for (auto &item2 : item) {
item2.first->glLoad();
if (item2.second) {
item2.second->glLoad();
}
}
}
}
bool RenderingState::isLoading() const
{
return visualisationFuture.valid() || simulationFuture.valid();
return loadingFuture.valid();
}

15
src/fmri/RenderingState.hpp
View File

@@ -73,13 +73,10 @@ namespace fmri
} options;
std::array<float, 3> pos;
std::array<float, 2> angle;
std::map<std::string, LayerInfo> layerInfo;
std::vector<std::vector<LayerData>> layerData;
std::vector<std::vector<LayerData>>::iterator currentData;
std::vector<std::unique_ptr<LayerVisualisation>> layerVisualisations;
std::vector<std::unique_ptr<Animation>> interactionAnimations;
std::future<bool> visualisationFuture;
std::future<std::pair<decltype(layerInfo), decltype(layerData)>> simulationFuture;
std::vector<std::vector<std::pair<std::unique_ptr<LayerVisualisation>, std::unique_ptr<Animation>>>> visualisations;
std::future<decltype(visualisations)> loadingFuture;
decltype(visualisations)::iterator currentData;
RenderingState() noexcept;
@@ -87,7 +84,7 @@ namespace fmri
void configureRenderingContext() const;
void move(unsigned char key, bool sprint);
void updateVisualisers();
void idleFunc();
std::string debugInfo() const;
@@ -96,8 +93,6 @@ namespace fmri
void drawLayer(float time, unsigned long i) const;
void queueUpdate();
void renderVisualisation(float time) const;
void loadGLItems();