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Improve performance of histogram/waveform updates

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Only perform calculations for the currently shown scope.
Cache the waveform so it can be reused when the scope is resized.
Increase speed of waveform rendering.
This commit is contained in:
Lawrence Lee
2020-07-26 13:27:17 -07:00
parent 99b7a557c9
commit 6df69b3786
7 changed files with 228 additions and 69 deletions
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41
rtgui/editorpanel.cc
View File

@@ -470,7 +470,8 @@ EditorPanel::EditorPanel (FilePanel* filePanel)
iBeforeLockON (nullptr), iBeforeLockOFF (nullptr), previewHandler (nullptr), beforePreviewHandler (nullptr),
beforeIarea (nullptr), beforeBox (nullptr), afterBox (nullptr), beforeLabel (nullptr), afterLabel (nullptr),
beforeHeaderBox (nullptr), afterHeaderBox (nullptr), parent (nullptr), parentWindow (nullptr), openThm (nullptr),
selectedFrame(0), isrc (nullptr), ipc (nullptr), beforeIpc (nullptr), err (0), isProcessing (false)
selectedFrame(0), isrc (nullptr), ipc (nullptr), beforeIpc (nullptr), err (0), isProcessing (false),
histogram_observable(nullptr), histogram_scope_type(HistogramPanelListener::NONE)
{
epih = new EditorPanelIdleHelper;
@@ -2260,6 +2261,40 @@ void EditorPanel::histogramChanged(
tpc->updateCurveBackgroundHistogram(histToneCurve, histLCurve, histCCurve, histLCAM, histCCAM, histRed, histGreen, histBlue, histLuma, histLRETI);
}
void EditorPanel::setObservable(rtengine::HistogramObservable* observable)
{
histogram_observable = observable;
}
bool EditorPanel::updateHistogram(void)
{
return histogram_scope_type == HistogramPanelListener::HISTOGRAM
|| histogram_scope_type == HistogramPanelListener::NONE;
}
bool EditorPanel::updateWaveform(void)
{
return histogram_scope_type == HistogramPanelListener::WAVEFORM
|| histogram_scope_type == HistogramPanelListener::NONE;
}
void EditorPanel::scopeTypeChanged(ScopeType new_type)
{
histogram_scope_type = new_type;
if (!histogram_observable) {
return;
}
// Make sure the new scope is updated since we only actively update the
// current scope.
if (new_type == HistogramPanelListener::HISTOGRAM) {
histogram_observable->updateHistogram();
} else if (new_type == HistogramPanelListener::WAVEFORM) {
histogram_observable->updateWaveform();
}
}
bool EditorPanel::CheckSidePanelsVisibility()
{
if (tbTopPanel_1) {
@@ -2376,6 +2411,10 @@ void EditorPanel::updateHistogramPosition (int oldPosition, int newPosition)
break;
}
if (histogramPanel) {
histogramPanel->setPanelListener(this);
}
iareapanel->imageArea->setPointerMotionHListener (histogramPanel);
}

10
rtgui/editorpanel.h
View File

@@ -55,6 +55,7 @@ class EditorPanel final :
public ThumbnailListener,
public HistoryBeforeLineListener,
public rtengine::HistogramListener,
public HistogramPanelListener,
public rtengine::NonCopyable
{
public:
@@ -133,6 +134,12 @@ public:
const int waveformGreen[][256],
const int waveformBlue[][256]
) override;
void setObservable(rtengine::HistogramObservable* observable) override;
bool updateHistogram(void) override;
bool updateWaveform(void) override;
// HistogramPanelListener
void scopeTypeChanged(ScopeType new_type) override;
// event handlers
void info_toggled ();
@@ -265,4 +272,7 @@ private:
bool isProcessing;
IdleRegister idle_register;
rtengine::HistogramObservable* histogram_observable;
ScopeType histogram_scope_type;
};

130
rtgui/histogrampanel.cc
View File

@@ -32,7 +32,7 @@ using namespace rtengine;
//
//
// HistogramPanel
HistogramPanel::HistogramPanel ()
HistogramPanel::HistogramPanel () : panel_listener(nullptr)
{
setExpandAlignProperties(this, true, true, Gtk::ALIGN_FILL, Gtk::ALIGN_FILL);
set_name("HistogramPanel");
@@ -355,12 +355,20 @@ void HistogramPanel::type_changed()
showRAW->set_sensitive();
showMode->set_sensitive();
histogramRGBArea = histogramRGBAreaHori.get();
if (panel_listener) {
updateHistAreaOptions();
panel_listener->scopeTypeChanged(HistogramPanelListener::HISTOGRAM);
}
} else {
showValue->set_sensitive(false);
showChro->set_sensitive(false);
showRAW->set_sensitive(false);
showMode->set_sensitive(false);
histogramRGBArea = histogramRGBAreaVert.get();
if (panel_listener) {
updateHistAreaOptions();
panel_listener->scopeTypeChanged(HistogramPanelListener::WAVEFORM);
}
}
if (showBAR->get_active()) {
@@ -383,7 +391,8 @@ void HistogramPanel::bar_toggled ()
void HistogramPanel::rgbv_toggled ()
{
// Update Display
histogramArea->updateOptions (showRed->get_active(), showGreen->get_active(), showBlue->get_active(), showValue->get_active(), showChro->get_active(), showRAW->get_active(), options.histogramDrawMode, options.histogramScopeType);
updateHistAreaOptions();
histogramArea->updateBackBuffer ();
histogramArea->queue_draw ();
histogramRGBArea->updateOptions (showRed->get_active(), showGreen->get_active(), showBlue->get_active(), showValue->get_active(), showChro->get_active(), showRAW->get_active(), showBAR->get_active());
@@ -441,6 +450,35 @@ void HistogramPanel::toggleButtonMode ()
showMode->set_image(*mode2Image);
}
void HistogramPanel::setPanelListener(HistogramPanelListener* listener)
{
panel_listener = listener;
if (listener) {
HistogramPanelListener::ScopeType type;
if (options.histogramScopeType == 0) {
type = HistogramPanelListener::HISTOGRAM;
} else {
type = HistogramPanelListener::WAVEFORM;
}
listener->scopeTypeChanged(type);
}
}
void HistogramPanel::updateHistAreaOptions()
{
histogramArea->updateOptions(
showRed->get_active(),
showGreen->get_active(),
showBlue->get_active(),
showValue->get_active(),
showChro->get_active(),
showRAW->get_active(),
options.histogramDrawMode,
options.histogramScopeType
);
}
//
//
//
@@ -775,7 +813,7 @@ void HistogramRGBAreaVert::get_preferred_width_for_height_vfunc (int height, int
//
// HistogramArea
HistogramArea::HistogramArea (DrawModeListener *fml) :
waveform_width(0),
waveform_width(0), wave_buffer_dirty(true),
valid(false), drawMode(options.histogramDrawMode), myDrawModeListener(fml),
scopeType(options.histogramScopeType),
oldwidth(-1), oldheight(-1),
@@ -854,7 +892,7 @@ void HistogramArea::updateOptions (bool r, bool g, bool b, bool l, bool c, bool
options.histogramDrawMode = drawMode = mode;
options.histogramScopeType = scopeType = type;
updateBackBuffer ();
wave_buffer_dirty = true;
}
void HistogramArea::update(
@@ -874,27 +912,31 @@ void HistogramArea::update(
)
{
if (histRed) {
rhist = histRed;
ghist = histGreen;
bhist = histBlue;
lhist = histLuma;
chist = histChroma;
rhistRaw = histRedRaw;
ghistRaw = histGreenRaw;
bhistRaw = histBlueRaw;
waveform_scale = waveformScale;
if (waveform_width != waveformWidth) {
waveform_width = waveformWidth;
rwave.reset(new int[waveformWidth][256]);
gwave.reset(new int[waveformWidth][256]);
bwave.reset(new int[waveformWidth][256]);
if (scopeType == 0) {
rhist = histRed;
ghist = histGreen;
bhist = histBlue;
lhist = histLuma;
chist = histChroma;
rhistRaw = histRedRaw;
ghistRaw = histGreenRaw;
bhistRaw = histBlueRaw;
} else if (scopeType == 1) {
waveform_scale = waveformScale;
if (waveform_width != waveformWidth) {
waveform_width = waveformWidth;
rwave.reset(new int[waveformWidth][256]);
gwave.reset(new int[waveformWidth][256]);
bwave.reset(new int[waveformWidth][256]);
}
int (* const rw)[256] = rwave.get();
int (* const gw)[256] = gwave.get();
int (* const bw)[256] = bwave.get();
memcpy(rw, waveformRed, 256 * waveformWidth * sizeof(rw[0][0]));
memcpy(gw, waveformGreen, 256 * waveformWidth * sizeof(gw[0][0]));
memcpy(bw, waveformBlue, 256 * waveformWidth * sizeof(bw[0][0]));
wave_buffer_dirty = true;
}
int (* const rw)[256] = rwave.get();
int (* const gw)[256] = gwave.get();
int (* const bw)[256] = bwave.get();
memcpy(rw, waveformRed, 256 * waveformWidth * sizeof(rw[0][0]));
memcpy(gw, waveformGreen, 256 * waveformWidth * sizeof(gw[0][0]));
memcpy(bw, waveformBlue, 256 * waveformWidth * sizeof(bw[0][0]));
valid = true;
} else {
valid = false;
@@ -1185,31 +1227,35 @@ void HistogramArea::drawWaveform(Cairo::RefPtr<Cairo::Context> &cr, int w, int h
// See Cairo documentation on stride.
const int cairo_stride = Cairo::ImageSurface::format_stride_for_width(Cairo::FORMAT_ARGB32, waveform_width);
std::unique_ptr<unsigned char[]> buffer(new unsigned char[256 * cairo_stride]);
// Clear waveform.
memset(buffer.get(), 0, 256 * cairo_stride);
if (wave_buffer_dirty) {
wave_buffer.reset(new unsigned char[256 * cairo_stride]);
// TODO: Optimize.
for (int col = 0; col < waveform_width; col++) {
for (int val = 0; val < 256; val++) {
const float r = needRed ? scale * rwave[col][255 - val] : 0.f;
const float g = needGreen ? scale * gwave[col][255 - val] : 0.f;
const float b = needBlue ? scale * bwave[col][255 - val] : 0.f;
const float value = (r > g && r > b) ? r : ((g > b) ? g : b);
if (value <= 0) {
buffer[val * cairo_stride + col * 4 + 3] = 0;
} else {
buffer[val * cairo_stride + col * 4 + 3] = value;
buffer[val * cairo_stride + col * 4 + 2] = r;
buffer[val * cairo_stride + col * 4 + 1] = g;
buffer[val * cairo_stride + col * 4] = b;
// Clear waveform.
memset(wave_buffer.get(), 0, 256 * cairo_stride);
// TODO: Optimize.
for (int col = 0; col < waveform_width; col++) {
for (int val = 0; val < 256; val++) {
const unsigned char r = needRed ? scale * rwave[col][val] : 0;
const unsigned char g = needGreen ? scale * gwave[col][val] : 0;
const unsigned char b = needBlue ? scale * bwave[col][val] : 0;
const unsigned char value = (r > g && r > b) ? r : ((g > b) ? g : b);
if (value <= 0) {
*(uint32_t*)&(wave_buffer[(255 - val) * cairo_stride + col * 4]) = 0;
} else {
// Speedup with one memory access instead of four.
*(uint32_t*)&(wave_buffer[(255 - val) * cairo_stride + col * 4]) =
b | (g << 8) | (r << 16) | (value << 24);
}
}
}
wave_buffer_dirty = false;
}
Cairo::RefPtr<Cairo::ImageSurface> surface = Cairo::ImageSurface::create(
buffer.get(), Cairo::FORMAT_ARGB32, waveform_width, 256, cairo_stride);
wave_buffer.get(), Cairo::FORMAT_ARGB32, waveform_width, 256, cairo_stride);
auto orig_matrix = cr->get_matrix();
cr->translate(0, padding);
cr->scale(static_cast<double>(w) / waveform_width, (h - 2 * padding) / 256.0);

15
rtgui/histogrampanel.h
View File

@@ -159,6 +159,8 @@ protected:
int waveform_scale;
int waveform_width;
std::unique_ptr<int[][256]> rwave, gwave, bwave;
std::unique_ptr<unsigned char[]> wave_buffer;
bool wave_buffer_dirty;
bool valid;
int drawMode;
@@ -214,6 +216,14 @@ private:
void get_preferred_width_for_height_vfunc (int height, int &minimum_width, int &natural_width) const override;
};
class HistogramPanelListener
{
public:
enum ScopeType {HISTOGRAM, WAVEFORM, NONE};
virtual void scopeTypeChanged(ScopeType new_type) = 0;
};
class HistogramPanel final : public Gtk::Grid, public PointerMotionListener, public DrawModeListener, public rtengine::NonCopyable
{
@@ -255,9 +265,12 @@ protected:
Gtk::Image *mode1Image;
Gtk::Image *mode2Image;
HistogramPanelListener* panel_listener;
sigc::connection rconn;
void setHistInvalid ();
void showRGBBar();
void updateHistAreaOptions();
public:
@@ -304,4 +317,6 @@ public:
// drawModeListener interface
void toggleButtonMode () override;
void setPanelListener(HistogramPanelListener* listener);
};