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Optimized the audio display redraw.

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Originally committed to SVN as r2453.
This commit is contained in:
Rodrigo Braz Monteiro 2008-11-14 01:21:17 +00:00
parent b310869224
commit e11bd3f659
2 changed files with 23 additions and 5 deletions
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24
aegisub/audio_display.cpp
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@ -103,6 +103,7 @@ AudioDisplay::AudioDisplay(wxWindow *parent)
hold = 0;
samples = 0;
hasFocus = (wxWindow::FindFocus() == this);
needImageUpdate = false;
// Init
UpdateTimer.SetOwner(this,Audio_Update_Timer);
@ -159,9 +160,23 @@ void AudioDisplay::Reset() {
////////////////
// Update image
void AudioDisplay::UpdateImage(bool weak) {
// Update samples
UpdateSamples();
// Set image as needing to be redrawn
needImageUpdate = true;
if (!needImageUpdateWeak) needImageUpdateWeak = weak;
Refresh(false);
}
void AudioDisplay::DoUpdateImage() {
// Loaded?
if (!loaded || !provider) return;
// Needs updating?
if (!needImageUpdate) return;
bool weak = needImageUpdateWeak;
// Prepare bitmap
int timelineHeight = Options.AsBool(_T("Audio Draw Timeline")) ? 20 : 0;
int displayH = h+timelineHeight;
@ -189,9 +204,6 @@ void AudioDisplay::UpdateImage(bool weak) {
spectrum = true;
}
// Update samples
UpdateSamples();
// Draw image to be displayed
wxMemoryDC dc;
dc.SelectObject(*origImage);
@ -372,7 +384,8 @@ void AudioDisplay::UpdateImage(bool weak) {
}
// Done
Refresh(false);
needImageUpdate = false;
needImageUpdateWeak = false;
}
@ -1313,6 +1326,7 @@ END_EVENT_TABLE()
// Paint
void AudioDisplay::OnPaint(wxPaintEvent& event) {
if (w == 0 || h == 0) return;
DoUpdateImage();
wxPaintDC dc(this);
dc.DrawBitmap(*origImage,0,0);
@ -1397,7 +1411,7 @@ void AudioDisplay::OnMouseEvent(wxMouseEvent& event) {
}
// Cursor drawing
if (!player->IsPlaying()) {
if (!player->IsPlaying() && origImage) {
// Draw bg
wxClientDC dc(this);
dc.DrawBitmap(*origImage,0,0);

4
aegisub/audio_display.h
View file

@ -84,6 +84,9 @@ private:
bool blockUpdate;
bool dontReadTimes;
bool needImageUpdate;
bool needImageUpdateWeak;
bool hasSel;
bool hasKaraoke;
bool diagUpdated;
@ -130,6 +133,7 @@ private:
void UpdatePosition(int pos,bool IsSample=false);
int GetBoundarySnap(int x,int range,bool shiftHeld,bool start=true);
void DoUpdateImage();
public:
AudioProvider *provider;