using namespace ARDOUR;
using namespace ArdourCanvas;
+#define CACHE_HIGH_WATER (2)
+
+std::map <boost::shared_ptr<AudioSource>, std::vector<WaveView::CacheEntry> > WaveView::_image_cache;
double WaveView::_global_gradient_depth = 0.6;
bool WaveView::_global_logscaled = false;
WaveView::Shape WaveView::_global_shape = WaveView::Normal;
, _logscaled_independent (false)
, _gradient_depth_independent (false)
, _amplitude_above_axis (1.0)
+ , _region_amplitude (_region->scale_amplitude ())
, _region_start (region->start())
- , _sample_start (-1)
- , _sample_end (-1)
{
VisualPropertiesChanged.connect_same_thread (invalidation_connection, boost::bind (&WaveView::handle_visual_property_change, this));
ClipLevelChanged.connect_same_thread (invalidation_connection, boost::bind (&WaveView::handle_clip_level_change, this));
WaveView::~WaveView ()
{
+ invalidate_image_cache ();
}
void
}
if (changed) {
- invalidate_image ();
+ begin_visual_change ();
+ invalidate_image_cache ();
+ end_visual_change ();
}
}
void
WaveView::handle_clip_level_change ()
{
- invalidate_image ();
+ begin_visual_change ();
+ invalidate_image_cache ();
+ end_visual_change ();
}
void
WaveView::set_fill_color (Color c)
{
if (c != _fill_color) {
- invalidate_image ();
+ begin_visual_change ();
+ invalidate_image_cache ();
Fill::set_fill_color (c);
+ end_visual_change ();
}
}
WaveView::set_outline_color (Color c)
{
if (c != _outline_color) {
- invalidate_image ();
+ begin_visual_change ();
+ invalidate_image_cache ();
Outline::set_outline_color (c);
+ end_visual_change ();
}
}
if (samples_per_pixel != _samples_per_pixel) {
begin_change ();
+ invalidate_image_cache ();
_samples_per_pixel = samples_per_pixel;
-
_bounding_box_dirty = true;
end_change ();
-
- invalidate_image ();
}
}
}
}
-struct LineTips {
- double top;
- double bot;
- bool clip_max;
- bool clip_min;
-
- LineTips() : top (0.0), bot (0.0), clip_max (false), clip_min (false) {}
-};
+void
+WaveView::invalidate_image_cache ()
+{
+ vector <uint32_t> deletion_list;
+ vector <CacheEntry> caches;
+
+ if (_image_cache.find (_region->audio_source ()) != _image_cache.end ()) {
+ caches = _image_cache.find (_region->audio_source ())->second;
+ } else {
+ return;
+ }
+
+ for (uint32_t i = 0; i < caches.size (); ++i) {
+
+ if (_channel != caches[i].channel || _height != caches[i].height || _region_amplitude != caches[i].amplitude) {
+ continue;
+ }
+
+ deletion_list.push_back (i);
+
+ }
+
+ while (deletion_list.size() > 0) {
+ caches[deletion_list.back ()].image.clear ();
+ caches.erase (caches.begin() + deletion_list.back());
+ deletion_list.pop_back();
+ }
+
+ if (caches.size () == 0) {
+ _image_cache.erase(_region->audio_source ());
+ } else {
+ _image_cache[_region->audio_source ()] = caches;
+ }
+
+}
void
-WaveView::draw_image (PeakData* _peaks, int n_peaks) const
+WaveView::consolidate_image_cache () const
{
- _image = Cairo::ImageSurface::create (Cairo::FORMAT_ARGB32, n_peaks, _height);
+ list <uint32_t> deletion_list;
+ vector <CacheEntry> caches;
+ uint32_t other_entries = 0;
+
+ if (_image_cache.find (_region->audio_source ()) != _image_cache.end ()) {
+ caches = _image_cache.find (_region->audio_source ())->second;
+ }
+
+ for (uint32_t i = 0; i < caches.size (); ++i) {
+
+ if (_channel != caches[i].channel || _height != caches[i].height || _region_amplitude != caches[i].amplitude) {
+ other_entries++;
+ continue;
+ }
+
+ framepos_t segment_start = caches[i].start;
+ framepos_t segment_end = caches[i].end;
- Cairo::RefPtr<Cairo::Context> context = Cairo::Context::create (_image);
+ for (uint32_t j = i; j < caches.size (); ++j) {
+
+ if (i == j || _channel != caches[j].channel || _height != caches[i].height || _region_amplitude != caches[i].amplitude) {
+ continue;
+ }
+
+ if (caches[j].start >= segment_start && caches[j].end <= segment_end) {
+
+ deletion_list.push_back (j);
+ }
+ }
+ }
+
+ deletion_list.sort ();
+ deletion_list.unique ();
+
+ while (deletion_list.size() > 0) {
+ caches[deletion_list.back ()].image.clear ();
+ caches.erase (caches.begin() + deletion_list.back ());
+ deletion_list.pop_back();
+ }
+
+ /* We don't care if this channel/height/amplitude has anything in the cache - just drop the Last Added entries
+ until we reach a size where there is a maximum of CACHE_HIGH_WATER + other entries.
+ */
+
+ while (caches.size() > CACHE_HIGH_WATER + other_entries) {
+ caches.front ().image.clear ();
+ caches.erase(caches.begin ());
+ }
+
+ if (caches.size () == 0) {
+ _image_cache.erase (_region->audio_source ());
+ } else {
+ _image_cache[_region->audio_source ()] = caches;
+ }
+}
+struct LineTips {
+ double top;
+ double bot;
+ bool clip_max;
+ bool clip_min;
+
+ LineTips() : top (0.0), bot (0.0), clip_max (false), clip_min (false) {}
+};
+
+void
+WaveView::draw_image (Cairo::RefPtr<Cairo::ImageSurface>& image, PeakData* _peaks, int n_peaks) const
+{
+ Cairo::RefPtr<Cairo::Context> context = Cairo::Context::create (image);
boost::scoped_array<LineTips> tips (new LineTips[n_peaks]);
/* Clip level nominally set to -0.9dBFS to account for inter-sample
has been scaled by scale_amplitude() already.
*/
- const double clip_level = _clip_level * _region->scale_amplitude();
+ const double clip_level = _clip_level * _region_amplitude;
if (_shape == WaveView::Rectified) {
for (int i = 0; i < n_peaks; ++i) {
context->move_to (i, tips[i].top); /* down 1 pixel */
context->line_to (i, tips[i].bot);
- context->stroke ();
}
} else {
for (int i = 0; i < n_peaks; ++i) {
context->move_to (i, tips[i].top);
context->line_to (i, tips[i].bot);
- context->stroke ();
}
}
+ context->stroke ();
+
/* now add dots to the top and bottom of each line (this is
* modelled on pyramix, except that we add clipping indicators.
*/
if (show_top_clip) {
set_source_rgba (context, _clip_color);
context->rel_line_to (0, clip_height);
- context->stroke ();
set_source_rgba (context, _outline_color);
} else {
context->rel_line_to (0, 1.0);
- context->stroke ();
}
if (_shape != WaveView::Rectified) {
if (tips[i].clip_min) {
set_source_rgba (context, _clip_color);
context->rel_line_to (0, -clip_height);
- context->stroke ();
set_source_rgba (context, _outline_color);
} else {
context->rel_line_to (0, -1.0);
- context->stroke ();
}
}
}
+
+ context->stroke ();
}
if (show_zero_line()) {
}
void
-WaveView::ensure_cache (framepos_t start, framepos_t end) const
+WaveView::get_image (Cairo::RefPtr<Cairo::ImageSurface>& image, framepos_t start, framepos_t end, double& image_offset) const
{
- if (_image && _sample_start <= start && _sample_end >= end) {
- /* cache already covers required range, do nothing */
- return;
+ vector <CacheEntry> caches;
+
+ if (_image_cache.find (_region->audio_source ()) != _image_cache.end ()) {
+
+ caches = _image_cache.find (_region->audio_source ())->second;
}
+ /* Find a suitable ImageSurface.
+ */
+ for (uint32_t i = 0; i < caches.size (); ++i) {
+
+ if (_channel != caches[i].channel || _height != caches[i].height || _region_amplitude != caches[i].amplitude) {
+ continue;
+ }
+
+ framepos_t segment_start = caches[i].start;
+ framepos_t segment_end = caches[i].end;
+
+ if (end <= segment_end && start >= segment_start) {
+ image_offset = (segment_start - _region->start()) / _samples_per_pixel;
+ image = caches[i].image;
+
+ return;
+ }
+ }
+
+ consolidate_image_cache ();
+
/* sample position is canonical here, and we want to generate
* an image that spans about twice the canvas width
*/
const framepos_t center = start + ((end - start) / 2);
- const framecnt_t canvas_samples = 2 * (_canvas->visible_area().width() * _samples_per_pixel);
+ const framecnt_t canvas_samples = _canvas->visible_area().width() * _samples_per_pixel; /* one canvas width */
/* we can request data from anywhere in the Source, between 0 and its length
*/
- _sample_start = max ((framepos_t) 0, (center - canvas_samples));
- _sample_end = min (center + canvas_samples, _region->source_length (0));
+ framepos_t sample_start = max ((framepos_t) 0, (center - canvas_samples));
+ framepos_t sample_end = min (center + canvas_samples, _region->source_length (0));
- const int n_peaks = llrintf ((_sample_end - _sample_start)/ (double) _samples_per_pixel);
+ const int n_peaks = llrintf ((sample_end - sample_start)/ (double) _samples_per_pixel);
boost::scoped_array<ARDOUR::PeakData> peaks (new PeakData[n_peaks]);
_region->read_peaks (peaks.get(), n_peaks,
- _sample_start, _sample_end - _sample_start,
+ sample_start, sample_end - sample_start,
_channel,
_samples_per_pixel);
- draw_image (peaks.get(), n_peaks);
+ image = Cairo::ImageSurface::create (Cairo::FORMAT_ARGB32, ((double)(sample_end - sample_start)) / _samples_per_pixel, _height);
+
+ draw_image (image, peaks.get(), n_peaks);
+
+ _image_cache[_region->audio_source ()].push_back (CacheEntry (_channel, _height, _region_amplitude, sample_start, sample_end, image));
+
+ image_offset = (sample_start - _region->start()) / _samples_per_pixel;
+
+ //cerr << "_image_cache size is : " << _image_cache.size() << " entries for this audiosource : " << _image_cache.find (_region->audio_source ())->second.size() << endl;
+
+ return;
}
void
// cerr << "Sample space: " << sample_start << " .. " << sample_end << endl;
- ensure_cache (sample_start, sample_end);
-
- // cerr << "Cache contains " << _cache->pixel_start() << " .. " << _cache->pixel_end() << " / "
- // << _cache->sample_start() << " .. " << _cache->sample_end()
- // << endl;
+ Cairo::RefPtr<Cairo::ImageSurface> image;
+ double image_offset = 0;
- double image_offset = (_sample_start - _region->start()) / _samples_per_pixel;
+ get_image (image, sample_start, sample_end, image_offset);
// cerr << "Offset into image to place at zero: " << image_offset << endl;
y = round (y);
context->device_to_user (x, y);
- context->set_source (_image, x, y);
+ context->set_source (image, x, y);
context->fill ();
}
{
if (height != _height) {
begin_change ();
-
+
+ invalidate_image_cache ();
_height = height;
-
+
_bounding_box_dirty = true;
end_change ();
-
- invalidate_image ();
}
}
{
if (channel != _channel) {
begin_change ();
-
+
+ invalidate_image_cache ();
_channel = channel;
-
+
_bounding_box_dirty = true;
end_change ();
-
- invalidate_image ();
}
}
-void
-WaveView::invalidate_image ()
-{
- begin_visual_change ();
-
- _image.clear ();
- _sample_start = -1;
- _sample_end = -1;
-
- end_visual_change ();
-}
-
-
void
WaveView::set_logscaled (bool yn)
{
if (_logscaled != yn) {
+ begin_visual_change ();
+ invalidate_image_cache ();
_logscaled = yn;
- invalidate_image ();
+ end_visual_change ();
}
}
void
WaveView::gain_changed ()
{
- invalidate_image ();
+ begin_visual_change ();
+ invalidate_image_cache ();
+ _region_amplitude = _region->scale_amplitude ();
+ end_visual_change ();
}
void
WaveView::set_zero_color (Color c)
{
if (_zero_color != c) {
+ begin_visual_change ();
+ invalidate_image_cache ();
_zero_color = c;
- invalidate_image ();
+ end_visual_change ();
}
}
WaveView::set_clip_color (Color c)
{
if (_clip_color != c) {
+ begin_visual_change ();
+ invalidate_image_cache ();
_clip_color = c;
- invalidate_image ();
+ end_visual_change ();
}
}
WaveView::set_show_zero_line (bool yn)
{
if (_show_zero != yn) {
+ begin_visual_change ();
+ invalidate_image_cache ();
_show_zero = yn;
- invalidate_image ();
+ end_visual_change ();
}
}
WaveView::set_shape (Shape s)
{
if (_shape != s) {
+ begin_visual_change ();
+ invalidate_image_cache ();
_shape = s;
- invalidate_image ();
+ end_visual_change ();
}
}
WaveView::set_amplitude_above_axis (double a)
{
if (_amplitude_above_axis != a) {
+ begin_visual_change ();
+ invalidate_image_cache ();
_amplitude_above_axis = a;
- invalidate_image ();
+ end_visual_change ();
}
}
projects / ardour.git / commitdiff