/*
 * CINELERRA
 * Copyright (C) 1997-2014 Adam Williams <broadcast at earthling dot net>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */



#include "arender.h"
#include "aedit.h"
#include "asset.h"
#include "asset.inc"
#include "automation.h"
#include "autos.h"
#include "bcsignals.h"
#include "cache.h"
#include "clip.h"
#include "bccmodels.h"
#include "datatype.h"
#include "edit.h"
#include "edits.h"
#include "edl.h"
#include "edlsession.h"
#include "file.h"
#include "filesystem.h"
#include "floatauto.h"
#include "floatautos.h"
#include "framecache.h"
#include "indexfile.h"
#include "language.h"
#include "localsession.h"
#include "mwindow.h"
#include "mwindowgui.h"
#include "renderengine.h"
#include "resourcethread.h"
#include "resourcepixmap.h"
#include "samples.h"
#include "theme.h"
#include "timelinepane.h"
#include "track.h"
#include "trackcanvas.h"
#include "transportque.h"
#include "vedit.h"
#include "vframe.h"
#include "wavecache.h"


ResourcePixmap::ResourcePixmap(MWindow *mwindow,
	MWindowGUI *gui,
	Edit *edit,
	int pane_number,
	int w,
	int h)
 : BC_Pixmap(gui, w, h)
{
	reset();

	this->mwindow = mwindow;
	this->gui = gui;
	this->pane_number = pane_number;
	startsource = edit->startsource;
	data_type = edit->track->data_type;
	if( edit->asset ) {
		source_framerate = edit->asset->frame_rate;
		source_samplerate = edit->asset->sample_rate;
	}
	else
	if( edit->nested_edl ) {
		source_framerate = edit->nested_edl->session->frame_rate;
		source_samplerate = edit->nested_edl->session->sample_rate;
	}

	project_framerate = edit->edl->session->frame_rate;
	project_samplerate = edit->edl->session->sample_rate;
	edit_id = edit->id;  pixmap_w = w;  pixmap_h = h;
}

ResourcePixmap::~ResourcePixmap()
{
}


void ResourcePixmap::reset()
{
	edit_x = 0;
	pixmap_x = 0;
	pixmap_w = 0;
	pixmap_h = 0;
	zoom_sample = 0;
	zoom_track = 0;
	zoom_y = 0;
	visible = 1;
}

void ResourcePixmap::resize(int w, int h)
{
	int new_w = (w > get_w()) ? w : get_w();
	int new_h = (h > get_h()) ? h : get_h();

	BC_Pixmap::resize(new_w, new_h);
}


void ResourcePixmap::draw_data(TrackCanvas *canvas,
	Edit *edit,
	int64_t edit_x,
	int64_t edit_w,
	int64_t pixmap_x,
	int64_t pixmap_w,
	int64_t pixmap_h,
	int mode,
	int indexes_only)
{
// Get new areas to fill in relative to pixmap
// Area to redraw relative to pixmap
	int refresh_x = 0;
	int refresh_w = 0;

// Ignore if called by resourcethread.
//	if( mode == IGNORE_THREAD ) return;

	int y = 0;
	if( mwindow->edl->session->show_titles )
		y += mwindow->theme->get_image("title_bg_data")->get_h();
	Track *track = edit->edits->track;


// If want indexes only & index can't be drawn, don't do anything.
	int need_redraw = 0;
	int64_t index_zoom = 0;
	Indexable *indexable = 0;
	if( edit->asset ) indexable = edit->asset;
	if( edit->nested_edl ) indexable = edit->nested_edl;
	if( indexable && indexes_only ) {
		IndexFile indexfile(mwindow, indexable);
		if( !indexfile.open_index() ) {
			index_zoom = indexable->index_state->index_zoom;
			indexfile.close_index();
		}

		if( index_zoom ) {
			if( data_type == TRACK_AUDIO ) {
				double asset_over_session = (double)indexable->get_sample_rate() /
					mwindow->edl->session->sample_rate;
				if( index_zoom <= mwindow->edl->local_session->zoom_sample *
					asset_over_session )
					need_redraw = 1;
			}
		}

		if( !need_redraw )
			return;
	}


// Redraw everything
/* Incremental drawing is not possible with resource thread */
	if( 1 )
// 		edit->startsource != this->startsource ||
// 		mwindow->edl->session->sample_rate != project_samplerate ||
// 		!EQUIV(mwindow->edl->session->frame_rate, project_framerate) ||
// 		mwindow->edl->local_session->zoom_sample != zoom_sample ||
// 		mwindow->edl->local_session->zoom_track != zoom_track ||
// 		this->pixmap_h != pixmap_h ||
// 		(data_type == TRACK_AUDIO &&
// 			mwindow->edl->local_session->zoom_y != zoom_y) ||
// 		(mode == 2) ||
// 		need_redraw)
	{
// Redraw the whole thing.
		refresh_x = 0;
		refresh_w = pixmap_w;
	}
	else {
// Start translated right
		if( pixmap_w == this->pixmap_w && edit_x < this->edit_x && edit_w != pixmap_w ) {
			refresh_w = this->edit_x - edit_x;
			refresh_x = this->pixmap_w - refresh_w;

// Moved completely off the pixmap
			if( refresh_w > this->pixmap_w ) {
				refresh_w = this->pixmap_w;
				refresh_x = 0;
			}
			else {
				copy_area(refresh_w,
					y,
					refresh_x,
					mwindow->edl->local_session->zoom_track,
					0,
					y);
			}
		}
 		else
// Start translated left
		if( pixmap_w == this->pixmap_w && edit_x > this->edit_x && edit_w != pixmap_w ) {
			refresh_x = 0;
			refresh_w = edit_x - this->edit_x;

// Moved completely off the pixmap
			if( refresh_w > this->pixmap_w ) {
				refresh_w = this->pixmap_w;
			}
			else {
				copy_area(0,
					y,
					this->pixmap_w - refresh_w,
					mwindow->edl->local_session->zoom_track,
					refresh_w,
					y);
			}
 		}
		else
// Start translated right and pixmap came off of right side
		if( pixmap_w < this->pixmap_w && edit_x < this->edit_x &&
			this->edit_x + edit_w > this->pixmap_x + this->pixmap_w ) {
			refresh_w = (this->edit_x + edit_w) - (this->pixmap_x + this->pixmap_w);
			refresh_x = pixmap_w - refresh_w;

			if( refresh_w >= pixmap_w ) {
				refresh_x = 0;
				refresh_w = pixmap_w;
			}
			else {
				copy_area(this->edit_x - edit_x,
					y,
					pixmap_w - refresh_w,
					mwindow->edl->local_session->zoom_track,
					0,
					y);
			}
		}
		else
// Start translated right and reduced in size on the right.
		if( pixmap_w < this->pixmap_w && edit_x < this->edit_x ) {
			refresh_x = 0;
			refresh_w = 0;

			copy_area(this->pixmap_w - pixmap_w,
				y,
				pixmap_w,
				mwindow->edl->local_session->zoom_track,
				0,
				y);
		}
		else
// Start translated left and pixmap came off left side
		if( edit_x >= 0 && this->edit_x < 0 ) {
			refresh_x = 0;
			refresh_w = -this->edit_x;

			if( refresh_w > pixmap_w ) {
				refresh_w = pixmap_w;
			}
			else {
				copy_area(0,
						y,
						this->pixmap_w,
						mwindow->edl->local_session->zoom_track,
						refresh_w,
						y);
			}
		}
		else
// Start translated left and reduced in size on the right
		if( pixmap_w < this->pixmap_w && edit_x > this->edit_x ) {
			refresh_x = 0;
			refresh_w = 0;
		}
		else
// Start translated right and left went into left side.
		if( pixmap_w > this->pixmap_w && edit_x < 0 && this->edit_x > 0 ) {
			refresh_w = pixmap_w - (edit_x + this->pixmap_w);
			refresh_x = pixmap_w - refresh_w;

// Moved completely off new pixmap
			if( refresh_w > pixmap_w ) {
				refresh_w = pixmap_w;
				refresh_x = 0;
			}
			else {
				copy_area(-edit_x,
					y,
					refresh_x,
					mwindow->edl->local_session->zoom_track,
					0,
					y);
			}
		}
		else
// Start translated right and increased in size on the right
		if( pixmap_w > this->pixmap_w && edit_x <= this->edit_x ) {
			refresh_w = pixmap_w - this->pixmap_w;
			refresh_x = pixmap_w - refresh_w;
		}
		else
// Start translated left and increased in size on the right
		if( pixmap_w > this->pixmap_w && edit_x > this->edit_x ) {
			refresh_x = 0;
			refresh_w = edit_x - this->edit_x;

// Moved completely off new pixmap
			if( refresh_w > this->pixmap_w ) {
				refresh_w = pixmap_w;
				refresh_x = 0;
			}
// Shift and insert
			else {
				copy_area(0,
					y,
					this->pixmap_w,
					mwindow->edl->local_session->zoom_track,
					refresh_w,
					y);
			}
		}
	}

// Update pixmap settings
	this->edit_id = edit->id;
	this->startsource = edit->startsource;

	if( edit->asset )
		this->source_framerate = edit->asset->frame_rate;
	else
	if( edit->nested_edl )
		this->source_framerate = edit->nested_edl->session->frame_rate;

	if( edit->asset )
		this->source_samplerate = edit->asset->sample_rate;
	else
	if( edit->nested_edl )
		this->source_samplerate = edit->nested_edl->session->sample_rate;

	this->project_framerate = edit->edl->session->frame_rate;
	this->project_samplerate = edit->edl->session->sample_rate;
	this->edit_x = edit_x;
	this->pixmap_x = pixmap_x;
	this->pixmap_w = pixmap_w;
	this->pixmap_h = pixmap_h;
	this->zoom_sample = mwindow->edl->local_session->zoom_sample;
	this->zoom_track = mwindow->edl->local_session->zoom_track;
	this->zoom_y = mwindow->edl->local_session->zoom_y;



// Draw background image
	if( refresh_w > 0 )
		mwindow->theme->draw_resource_bg(canvas,
			this,
			edit_x,
			edit_w,
			pixmap_x,
			refresh_x,
			y,
			refresh_x + refresh_w,
			mwindow->edl->local_session->zoom_track + y);
//printf("ResourcePixmap::draw_data 70\n");


// Draw media which already exists
	if( track->draw ) {
		switch( track->data_type )
		{
			case TRACK_AUDIO:
				draw_audio_resource(canvas,
					edit,
					refresh_x,
					refresh_w);
				break;

			case TRACK_VIDEO:
				draw_video_resource(canvas,
					edit,
					edit_x,
					edit_w,
					pixmap_x,
					pixmap_w,
					refresh_x,
					refresh_w,
					mode);
				break;

			case TRACK_SUBTITLE:
				draw_subttl_resource(canvas,
					edit,
					refresh_x,
					refresh_w);
				break;
		}
	}

// Draw title
SET_TRACE
	if( mwindow->edl->session->show_titles )
		draw_title(canvas,
			edit,
			edit_x,
			edit_w,
			pixmap_x,
			pixmap_w);
SET_TRACE
}

void ResourcePixmap::draw_title(TrackCanvas *canvas,
	Edit *edit, int64_t edit_x, int64_t edit_w,
	int64_t pixmap_x, int64_t pixmap_w)
{
// coords relative to pixmap
	int64_t total_x = edit_x - pixmap_x, total_w = edit_w;
	int64_t x = total_x, w = total_w;
	int left_margin = 10;

	if( x < 0 ) { w -= -x; x = 0; }
	if( w > pixmap_w ) w -= w - pixmap_w;

	canvas->draw_3segmenth(x, 0, w, total_x, total_w,
		mwindow->theme->get_image("title_bg_data"), this);

//	if( total_x > -BC_INFINITY ) {
		char title[BCTEXTLEN];
		char channel[BCTEXTLEN];
		title[0] = 0;
		channel[0] = 0;
		FileSystem fs;

		if( edit->user_title[0] )
			strcpy(title, edit->user_title);
		else if( edit->nested_edl ) {
//printf("ResourcePixmap::draw_title %s\n", edit->nested_edl->project_path);
			fs.extract_name(title, edit->nested_edl->path);

// EDLs only have 1 video output
			if( edit->track->data_type == TRACK_AUDIO ) {
				sprintf(channel, " #%d", edit->channel + 1);
				strcat(title, channel);
			}
		}
		else if( edit->asset ) {
			fs.extract_name(title, edit->asset->path);
			sprintf(channel, " #%d", edit->channel + 1);
			strcat(title, channel);
		}

		canvas->set_color(mwindow->theme->title_color);
		canvas->set_font(mwindow->theme->title_font);

// Justify the text on the left boundary of the edit if it is visible.
// Otherwise justify it on the left side of the screen.
		int text_x = total_x + left_margin;
		text_x = MAX(left_margin, text_x);
//printf("ResourcePixmap::draw_title 1 %d\n", text_x);
		canvas->draw_text(text_x,
			canvas->get_text_ascent(mwindow->theme->title_font) + 2,
			title, strlen(title), this);
//	}
}


// Need to draw one more x
void ResourcePixmap::draw_audio_resource(TrackCanvas *canvas, Edit *edit, int x, int w)
{
	if( w <= 0 ) return;
	if( !edit->asset && !edit->nested_edl ) return;
	Indexable *indexable = 0;
	if( edit->asset ) indexable = edit->asset;
	if( edit->nested_edl ) indexable = edit->nested_edl;
// printf("ResourcePixmap::draw_audio_resource %d x=%d w=%d\n", __LINE__, x, w);
SET_TRACE

	IndexState *index_state = indexable->index_state;
	double asset_over_session = (double)indexable->get_sample_rate() /
		mwindow->edl->session->sample_rate;

// Develop strategy for drawing
// printf("ResourcePixmap::draw_audio_resource %d %p %d\n",
// __LINE__,
// index_state,
// index_state->index_status);
	switch( index_state->index_status )
	{
		case INDEX_NOTTESTED:
			return;
			break;
// Disabled.  All files have an index.
//		case INDEX_TOOSMALL:
//			draw_audio_source(canvas, edit, x, w);
//			break;
		case INDEX_BUILDING:
		case INDEX_READY:
		{
			IndexFile indexfile(mwindow, indexable);
			if( !indexfile.open_index() ) {
				if( index_state->index_zoom >
						mwindow->edl->local_session->zoom_sample *
						asset_over_session ) {
//printf("ResourcePixmap::draw_audio_resource %d\n", __LINE__);

					draw_audio_source(canvas, edit, x, w);
				}
				else {
//printf("ResourcePixmap::draw_audio_resource %d\n", __LINE__);
					indexfile.draw_index(canvas,
						this,
						edit,
						x,
						w);
SET_TRACE
				}

				indexfile.close_index();
SET_TRACE
			}
			break;
		}
	}
}


















void ResourcePixmap::draw_audio_source(TrackCanvas *canvas,
	Edit *edit,
	int x,
	int w)
{
	w++;
	Indexable *indexable = edit->get_source();
	FloatAutos *speed_autos = (FloatAutos *)edit->track->automation->autos[AUTOMATION_SPEED];
	double asset_over_session = (double)indexable->get_sample_rate() /
		mwindow->edl->session->sample_rate;
	int center_pixel = mwindow->edl->local_session->zoom_track / 2;
	if( mwindow->edl->session->show_titles )
		center_pixel += mwindow->theme->get_image("title_bg_data")->get_h();
	int64_t scale_y = mwindow->edl->local_session->zoom_y;
	int y_max = center_pixel + scale_y / 2 - 1;

	int64_t start_source = (pixmap_x - edit_x + x) *
		mwindow->edl->local_session->zoom_sample + edit->startsource;
	int64_t start_speed = speed_autos->automation_integral(0, start_source, PLAY_FORWARD);
	int64_t start_asset = start_speed * asset_over_session;
	if( start_asset < 0 ) start_asset = 0;
	int64_t end_source = (pixmap_x - edit_x + x + w) *
		mwindow->edl->local_session->zoom_sample + edit->startsource;
	int64_t end_speed = speed_autos->automation_integral(0, end_source, PLAY_FORWARD);
	int64_t end_asset = end_speed * asset_over_session;
	if( end_asset < 0 ) end_asset = 0;
	int64_t total_source_samples = end_asset - start_asset;
	if( total_source_samples < 0 ) total_source_samples = 0;

// Single sample zoom
	if( mwindow->edl->local_session->zoom_sample == 1 ) {
		Samples *buffer = new Samples(total_source_samples);
		int result = 0;
		canvas->set_color(mwindow->theme->audio_color);

		if( indexable->is_asset ) {
			mwindow->gui->unlock_window();
			File *source = mwindow->audio_cache->check_out(edit->asset, mwindow->edl);
			mwindow->gui->lock_window("draw_audio_source");

			if( !source ) {
				printf(_("ResourcePixmap::draw_audio_source: failed to check out %s for drawing.\n"), edit->asset->path);
				return;
			}

			source->set_audio_position(start_speed);
			source->set_channel(edit->channel);
			result = source->read_samples(buffer, total_source_samples);
			mwindow->audio_cache->check_in(edit->asset);
		}
		else {
			if( mwindow->gui->render_engine &&
				mwindow->gui->render_engine_id != indexable->id ) {
				delete mwindow->gui->render_engine;
				mwindow->gui->render_engine = 0;
			}

			if( !mwindow->gui->render_engine ) {
				TransportCommand command;
				command.command = NORMAL_FWD;
				command.get_edl()->copy_all(edit->nested_edl);
				command.change_type = CHANGE_ALL;
				command.realtime = 0;
				mwindow->gui->render_engine = new RenderEngine(0,
					mwindow->preferences, 0, 0);
				mwindow->gui->render_engine_id = edit->nested_edl->id;
				mwindow->gui->render_engine->set_acache(mwindow->audio_cache);
				mwindow->gui->render_engine->arm_command(&command);
			}

			Samples *temp_buffer[MAX_CHANNELS];
			bzero(temp_buffer, MAX_CHANNELS * sizeof(double*));
			for( int i = 0; i < indexable->get_audio_channels(); i++ ) {
				temp_buffer[i] = new Samples(total_source_samples);
			}

			if( mwindow->gui->render_engine->arender ) {
				mwindow->gui->render_engine->arender->process_buffer(
					temp_buffer, total_source_samples, start_speed);
				memcpy(buffer->get_data(),
					temp_buffer[edit->channel]->get_data(),
					total_source_samples * sizeof(double));
			}

			for( int i = 0; i < indexable->get_audio_channels(); i++ ) {
				delete temp_buffer[i];
			}
		}

		if( !result ) {
			double *samples = buffer->get_data();
			int y1 = center_pixel - samples[0] * scale_y / 2;
			int y2 = CLIP(y1, 0, y_max);

			for( int x0=0; x0<w; ++x0 ) {
				int x1 = x0 + x, x2 = x1 + 1;
				int64_t pos_project = (pixmap_x - edit_x + x2) *
					mwindow->edl->local_session->zoom_sample + edit->startsource;
				int64_t pos_speed = speed_autos->automation_integral(0, pos_project, PLAY_FORWARD);
				int j = (pos_speed - start_speed) * asset_over_session;
				CLAMP(j, 0, total_source_samples);
				int y0 = y2;
				y1 = center_pixel - samples[j] * scale_y / 2;
				y2 = CLIP(y1, 0, y_max);
//printf("ResourcePixmap::draw_audio_source %d %d %d\n", __LINE__, y1, y2);
				canvas->draw_line(x0, y0, x2, y2, this);
			}
		}

		delete buffer;
	}
	else {
// Multiple sample zoom
		int first_pixel = 1;
		int prev_y1 = -1;
		int prev_y2 = y_max;
		int x2 = x + w;

		canvas->set_color(mwindow->theme->audio_color);

		int64_t next_project = (pixmap_x - edit_x + x) *
			mwindow->edl->local_session->zoom_sample + edit->startsource;
		int64_t next_speed = speed_autos->automation_integral(0, next_project, PLAY_FORWARD);
		int64_t next_asset = next_speed * asset_over_session;

// Draw each pixel from the cache
//printf("ResourcePixmap::draw_audio_source %d x=%d w=%d\n", __LINE__, x, w);
		while( x < x2 ) {
			int64_t prev_asset = next_asset;
			next_project = (pixmap_x - edit_x + x) *
				mwindow->edl->local_session->zoom_sample + edit->startsource;
			next_speed = speed_autos->automation_integral(0, next_project, PLAY_FORWARD);
			next_asset = next_speed * asset_over_session;
// Starting sample of pixel relative to asset rate.
			WaveCacheItem *item = mwindow->wave_cache->get_wave(indexable->id,
					edit->channel, prev_asset, next_asset);
			if( item ) {
//printf("ResourcePixmap::draw_audio_source %d\n", __LINE__);
				int y_lo = (int)(center_pixel - item->low * scale_y / 2);
				int y1 = CLIP(y_lo, 0, y_max);
				int y_hi = (int)(center_pixel - item->high * scale_y / 2);
				int y2 = CLIP(y_hi, 0, y_max);

				if( !first_pixel ) {
					y_lo = MIN(y1,prev_y2);
					y_hi = MAX(y2,prev_y1);
				}
				else {
					first_pixel = 0;
					y_lo = y1;
					y_hi = y2;
				}
				prev_y1 = y1;  prev_y2 = y2;
				canvas->draw_line(x, y_lo, x, y_hi, this);
//printf("ResourcePixmap::draw_audio_source %d %d %d %d\n", __LINE__, x, y1, y2);
				mwindow->wave_cache->unlock();
			}
			else {
//printf("ResourcePixmap::draw_audio_source %d\n", __LINE__);
				gui->resource_thread->add_wave(this,
					canvas->pane->number, indexable, x,
					edit->channel, prev_asset, next_asset);
				first_pixel = 1;
				prev_y1 = -1;
				prev_y2 = y_max;
			}
			++x;
		}
	}
	canvas->test_timer();
}

void ResourcePixmap::draw_wave(TrackCanvas *canvas, int x, double high, double low)
{
	int top_pixel = 0;
	if( mwindow->edl->session->show_titles )
		top_pixel = mwindow->theme->get_image("title_bg_data")->get_h();
	int center_pixel = mwindow->edl->local_session->zoom_track / 2 + top_pixel;
	int bottom_pixel = top_pixel + mwindow->edl->local_session->zoom_track;
	int y1 = (int)(center_pixel -
		low * mwindow->edl->local_session->zoom_y / 2);
	int y2 = (int)(center_pixel -
		high * mwindow->edl->local_session->zoom_y / 2);
	CLAMP(y1, top_pixel, bottom_pixel);
	CLAMP(y2, top_pixel, bottom_pixel);
	canvas->set_color(mwindow->theme->audio_color);
	canvas->draw_line(x, y1, x, y2, this);
}


void ResourcePixmap::draw_video_resource(TrackCanvas *canvas,
	Edit *edit, int64_t edit_x, int64_t edit_w, int64_t pixmap_x, int64_t pixmap_w,
	int refresh_x, int refresh_w, int mode)
{
//PRINT_TRACE
//BC_Signals::dump_stack();

// pixels spanned by a picon
	int64_t picon_w = Units::round(edit->picon_w());
	int64_t picon_h = edit->picon_h();
//	if( picon_w <= 0 || picon_w > edit_w ) return;
// Don't draw video if picon is empty, or edit only hairline
	if( picon_w < 1 || edit_w < 2 ) return;
// or bigger than edit and fills at less than 1.5 percent timeline
	if( picon_w > edit_w && edit_w < canvas->get_w()/64 ) return;

// pixels spanned by a frame
	double frame_w = edit->frame_w();

// Frames spanned by a picon
	double frames_per_picon = edit->frames_per_picon();

// Current pixel relative to pixmap
	int x = 0;
	int y = 0;
	if( mwindow->edl->session->show_titles )
		y += mwindow->theme->get_image("title_bg_data")->get_h();
// Frame in project touched by current pixel
	int64_t project_frame;

// Get first frame touched by x and fix x to start of frame
	if( frames_per_picon > 1 ) {
		int picon = Units::to_int64(
			(double)((int64_t)refresh_x + pixmap_x - edit_x) / picon_w);
		x = picon_w * picon + edit_x - pixmap_x;
		project_frame = Units::to_int64((double)picon * frames_per_picon);
	}
	else {
		project_frame = Units::to_int64((double)((int64_t)refresh_x + pixmap_x - edit_x) /
			frame_w);
		x = Units::round((double)project_frame * frame_w + edit_x - pixmap_x);
 	}

	FloatAutos *speed_autos = (FloatAutos *)edit->track->automation->autos[AUTOMATION_SPEED];

// Draw only cached frames
	while( x < refresh_x + refresh_w ) {
		int64_t source_frame = project_frame + edit->startsource;
		source_frame = speed_autos->automation_integral(0, source_frame, PLAY_FORWARD);
		VFrame *picon_frame = 0;
		Indexable *indexable = edit->get_source();
		int use_cache = 0;
		int id = -1;

		id = indexable->id;

		if( id >= 0 ) {
			picon_frame = mwindow->frame_cache->get_frame_ptr(source_frame, edit->channel,
				mwindow->edl->session->frame_rate, BC_RGB888, picon_w, picon_h, id);
		}

		if( picon_frame != 0 ) {
			use_cache = 1;
		}
		else {
// Set picon thread to draw in background
			if( mode != IGNORE_THREAD ) {
// printf("ResourcePixmap::draw_video_resource %d %d %lld\n",
// __LINE__,
// mwindow->frame_cache->total(),
// source_frame);
				gui->resource_thread->add_picon(this, canvas->pane->number, x, y,
					picon_w, picon_h, mwindow->edl->session->frame_rate,
					source_frame, edit->channel, indexable);
			}
		}

		if( picon_frame )
			draw_vframe(picon_frame, x, y, picon_w, picon_h, 0, 0);

// Unlock the get_frame_ptr command
		if( use_cache )
			mwindow->frame_cache->unlock();

		if( frames_per_picon > 1 ) {
			x += Units::round(picon_w);
			project_frame = Units::to_int64(frames_per_picon * (int64_t)((double)(x + pixmap_x - edit_x) / picon_w));
		}
		else {
			x += Units::round(frame_w);
			project_frame = (int64_t)((double)(x + pixmap_x - edit_x) / frame_w);
		}


		canvas->test_timer();
	}
}

#include "strack.h"

void ResourcePixmap::draw_subttl_resource(TrackCanvas *canvas, Edit *edit, int x, int w)
{
	SEdit *sedit = (SEdit *)edit;
	char *text = sedit->get_text();
	if( !*text || w < 10 ) return;
	int center_pixel = mwindow->edl->local_session->zoom_track / 2;
	if( mwindow->edl->session->show_titles )
		center_pixel += mwindow->theme->get_image("title_bg_data")->get_h();
	int64_t scale_y = mwindow->edl->local_session->zoom_y;
	int x0 = edit_x;
	if( x0 < 0 ) x0 = -x0;
	int x1 = (int)(pixmap_x - x0 + x);
	int y_max = center_pixel + scale_y / 2 - 1;
	int font = MEDIUMFONT, color = WHITE;
	canvas->set_font(font);
	canvas->set_color(color);
	int ch = canvas->get_text_height(font);
	int hh = canvas->get_text_height(font,text) + ch/2;
	int y1 = y_max - hh - 10;
	if( y1 < 0 ) y1 = 0;
	canvas->draw_text(x1, y1, text, -1, this);
}

void ResourcePixmap::dump()
{
	printf("ResourcePixmap %p\n", this);
	printf(" edit %jx edit_x %jd pixmap_x %jd pixmap_w %jd visible %d\n",
		edit_id, edit_x, pixmap_x, pixmap_w, visible);
}