--- /dev/null
+/* === S Y N F I G ========================================================= */
+/*! \file target_scanline.cpp
+** \brief Template File
+**
+** $Id$
+**
+** \legal
+** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
+** Copyright (c) 2008 Chris Moore
+**
+** This package 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 package 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.
+** \endlegal
+*/
+/* ========================================================================= */
+
+/* === H E A D E R S ======================================================= */
+
+#ifdef USING_PCH
+# include "pch.h"
+#else
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include "target_scanline.h"
+#include "string.h"
+#include "surface.h"
+#include "render.h"
+#include "canvas.h"
+#include "context.h"
+
+#endif
+
+/* === U S I N G =========================================================== */
+
+using namespace std;
+using namespace etl;
+using namespace synfig;
+
+/* === M A C R O S ========================================================= */
+
+// note that if this isn't defined then the rendering is incorrect for
+// the straight blend method since the optimize_layers() function in
+// canvas.cpp which makes the straight blend method work correctly
+// isn't called. ie. leave this defined. to see the problem, draw a
+// small circle over a solid background. set circle to amount 0.99
+// and blend method 'straight'. the background should vanish but doesn't
+#define SYNFIG_OPTIMIZE_LAYER_TREE
+
+#define PIXEL_RENDERING_LIMIT 1500000
+
+#define USE_PIXELRENDERING_LIMIT 1
+
+/* === G L O B A L S ======================================================= */
+
+/* === P R O C E D U R E S ================================================= */
+
+/* === M E T H O D S ======================================================= */
+
+Target_Scanline::Target_Scanline():
+ threads_(2)
+{
+ curr_frame_=0;
+}
+
+int
+Target_Scanline::next_frame(Time& time)
+{
+ int
+ total_frames(1),
+ frame_start(0),
+ frame_end(0);
+ Time
+ time_start(0),
+ time_end(0);
+
+ // If the description's end frame is equal to
+ // the start frame, then it is assumed that we
+ // are rendering only one frame. Correct it.
+ if(desc.get_frame_end()==desc.get_frame_start())
+ desc.set_frame_end(desc.get_frame_start()+1);
+
+ frame_start=desc.get_frame_start();
+ frame_end=desc.get_frame_end();
+ time_start=desc.get_time_start();
+ time_end=desc.get_time_end();
+
+ // Calculate the number of frames
+ total_frames=frame_end-frame_start;
+ if(total_frames<=0)total_frames=1;
+
+ //RendDesc rend_desc=desc;
+ //rend_desc.set_gamma(1);
+
+// int total_tiles(total_tiles());
+ time=(time_end-time_start)*curr_frame_/total_frames+time_start;
+ curr_frame_++;
+
+/* synfig::info("curr_frame_: %d",curr_frame_);
+ synfig::info("total_frames: %d",total_frames);
+ synfig::info("time_end: %s",time_end.get_string().c_str());
+ synfig::info("time_start: %s",time_start.get_string().c_str());
+*/
+// synfig::info("time: %s",time.get_string().c_str());
+
+ return total_frames- curr_frame_+1;
+}
+bool
+synfig::Target_Scanline::render(ProgressCallback *cb)
+{
+ SuperCallback super_cb;
+ int
+// i=0,
+ total_frames,
+ quality=get_quality(),
+ frame_start,
+ frame_end;
+ Time
+ t=0,
+ time_start,
+ time_end;
+
+ assert(canvas);
+ curr_frame_=0;
+
+ if( !init() ){
+ if(cb) cb->error(_("Target initialization failure"));
+ return false;
+ }
+
+ // If the description's end frame is equal to
+ // the start frame, then it is assumed that we
+ // are rendering only one frame. Correct it.
+ if(desc.get_frame_end()==desc.get_frame_start())
+ desc.set_frame_end(desc.get_frame_start()+1);
+
+ frame_start=desc.get_frame_start();
+ frame_end=desc.get_frame_end();
+ time_start=desc.get_time_start();
+ time_end=desc.get_time_end();
+
+ // Calculate the number of frames
+ total_frames=frame_end-frame_start;
+
+
+ //RendDesc rend_desc=desc;
+
+ try {
+ // Grab the time
+ int i=next_frame(t);
+
+ //synfig::info("1time_set_to %s",t.get_string().c_str());
+
+ if(i>1)
+ do{
+
+ //if(total_frames>1)
+ //for(i=0,t=time_start;i<total_frames;i++)
+ //{
+ //t=((time_end-time_start)*((Real)i/(Real)total_frames)).round(desc.get_frame_rate())+time_start;
+
+ // If we have a callback, and it returns
+ // false, go ahead and bail. (it may be a user cancel)
+ if(cb && !cb->amount_complete(total_frames-(i-1),total_frames))
+ return false;
+
+ // Set the time that we wish to render
+ if(!get_avoid_time_sync() || canvas->get_time()!=t)
+ canvas->set_time(t);
+
+ Context context;
+
+#ifdef SYNFIG_OPTIMIZE_LAYER_TREE
+ Canvas::Handle op_canvas;
+ if (!getenv("SYNFIG_DISABLE_OPTIMIZE_LAYER_TREE"))
+ {
+ op_canvas = Canvas::create();
+ op_canvas->set_file_name(canvas->get_file_name());
+ optimize_layers(canvas->get_time(), canvas->get_context(), op_canvas);
+ context=op_canvas->get_context();
+ }
+ else
+ context=canvas->get_context();
+#else
+ context=canvas->get_context();
+#endif
+
+ // If the quality is set to zero, then we
+ // use the parametric scanline-renderer.
+ if(quality==0)
+ {
+ if(threads_<=0)
+ {
+ if(!synfig::render(context,this,desc,0))
+ return false;
+ }
+ else
+ {
+ if(!synfig::render_threaded(context,this,desc,0,threads_))
+ return false;
+ }
+ }
+ else // If quality is set otherwise, then we use the accelerated renderer
+ {
+ #if USE_PIXELRENDERING_LIMIT
+ if(desc.get_w()*desc.get_h() > PIXEL_RENDERING_LIMIT)
+ {
+ Surface surface;
+ int rowheight = PIXEL_RENDERING_LIMIT/desc.get_w();
+ if (!rowheight) rowheight = 1; // TODO: render partial lines to stay within the limit?
+ int rows = desc.get_h()/rowheight;
+ int lastrowheight = desc.get_h() - rows*rowheight;
+
+ rows++;
+
+ synfig::info("Render broken up into %d block%s %d pixels tall, and a final block %d pixels tall",
+ rows-1, rows==2?"":"s", rowheight, lastrowheight);
+
+ // loop through all the full rows
+ if(!start_frame())
+ {
+ throw(string("add_frame(): target panic on start_frame()"));
+ return false;
+ }
+
+ for(int i=0; i < rows; ++i)
+ {
+ RendDesc blockrd = desc;
+
+ //render the strip at the normal size unless it's the last one...
+ if(i == rows-1)
+ {
+ if(!lastrowheight) break;
+ blockrd.set_subwindow(0,i*rowheight,desc.get_w(),lastrowheight);
+ }
+ else
+ {
+ blockrd.set_subwindow(0,i*rowheight,desc.get_w(),rowheight);
+ }
+
+ if(!context.accelerated_render(&surface,quality,blockrd,0))
+ {
+ if(cb)cb->error(_("Accelerated Renderer Failure"));
+ return false;
+ }else
+ {
+ int y;
+ int rowspan=sizeof(Color)*surface.get_w();
+ Surface::pen pen = surface.begin();
+
+ int yoff = i*rowheight;
+
+ for(y = 0; y < blockrd.get_h(); y++, pen.inc_y())
+ {
+ Color *colordata= start_scanline(y + yoff);
+ if(!colordata)
+ {
+ throw(string("add_frame(): call to start_scanline(y) returned NULL"));
+ return false;
+ }
+
+ if(get_remove_alpha())
+ {
+ for(int i = 0; i < surface.get_w(); i++)
+ colordata[i] = Color::blend(surface[y][i],desc.get_bg_color(),1.0f);
+ }
+ else
+ memcpy(colordata,surface[y],rowspan);
+
+ if(!end_scanline())
+ {
+ throw(string("add_frame(): target panic on end_scanline()"));
+ return false;
+ }
+ }
+ }
+ }
+
+ end_frame();
+
+ }else //use normal rendering...
+ {
+ #endif
+ Surface surface;
+
+ if(!context.accelerated_render(&surface,quality,desc,0))
+ {
+ // For some reason, the accelerated renderer failed.
+ if(cb)cb->error(_("Accelerated Renderer Failure"));
+ return false;
+ }
+ else
+ {
+ // Put the surface we renderer
+ // onto the target.
+ if(!add_frame(&surface))
+ {
+ if(cb)cb->error(_("Unable to put surface on target"));
+ return false;
+ }
+ }
+ #if USE_PIXELRENDERING_LIMIT
+ }
+ #endif
+ }
+ }while((i=next_frame(t)));
+ else
+ {
+ // Set the time that we wish to render
+ if(!get_avoid_time_sync() || canvas->get_time()!=t)
+ canvas->set_time(t);
+ Context context;
+
+#ifdef SYNFIG_OPTIMIZE_LAYER_TREE
+ Canvas::Handle op_canvas;
+ if (!getenv("SYNFIG_DISABLE_OPTIMIZE_LAYER_TREE"))
+ {
+ op_canvas = Canvas::create();
+ op_canvas->set_file_name(canvas->get_file_name());
+ optimize_layers(canvas->get_time(), canvas->get_context(), op_canvas);
+ context=op_canvas->get_context();
+ }
+ else
+ context=canvas->get_context();
+#else
+ context=canvas->get_context();
+#endif
+
+ // If the quality is set to zero, then we
+ // use the parametric scanline-renderer.
+ if(quality==0)
+ {
+ if(threads_<=0)
+ {
+ if(!synfig::render(context,this,desc,cb))
+ return false;
+ }
+ else
+ {
+ if(!synfig::render_threaded(context,this,desc,cb,threads_))
+ return false;
+ }
+ }
+ else // If quality is set otherwise, then we use the accelerated renderer
+ {
+ #if USE_PIXELRENDERING_LIMIT
+ if(desc.get_w()*desc.get_h() > PIXEL_RENDERING_LIMIT)
+ {
+ Surface surface;
+ int totalheight = desc.get_h();
+ int rowheight = PIXEL_RENDERING_LIMIT/desc.get_w();
+ if (!rowheight) rowheight = 1; // TODO: render partial lines to stay within the limit?
+ int rows = desc.get_h()/rowheight;
+ int lastrowheight = desc.get_h() - rows*rowheight;
+
+ rows++;
+
+ synfig::info("Render broken up into %d block%s %d pixels tall, and a final block %d pixels tall",
+ rows-1, rows==2?"":"s", rowheight, lastrowheight);
+
+ // loop through all the full rows
+ if(!start_frame())
+ {
+ throw(string("add_frame(): target panic on start_frame()"));
+ return false;
+ }
+
+ for(int i=0; i < rows; ++i)
+ {
+ RendDesc blockrd = desc;
+
+ //render the strip at the normal size unless it's the last one...
+ if(i == rows-1)
+ {
+ if(!lastrowheight) break;
+ blockrd.set_subwindow(0,i*rowheight,desc.get_w(),lastrowheight);
+ }
+ else
+ {
+ blockrd.set_subwindow(0,i*rowheight,desc.get_w(),rowheight);
+ }
+
+ SuperCallback sc(cb, i*rowheight, (i+1)*rowheight, totalheight);
+
+ if(!context.accelerated_render(&surface,quality,blockrd,&sc))
+ {
+ if(cb)cb->error(_("Accelerated Renderer Failure"));
+ return false;
+ }else
+ {
+ int y;
+ int rowspan=sizeof(Color)*surface.get_w();
+ Surface::pen pen = surface.begin();
+
+ int yoff = i*rowheight;
+
+ for(y = 0; y < blockrd.get_h(); y++, pen.inc_y())
+ {
+ Color *colordata= start_scanline(y + yoff);
+ if(!colordata)
+ {
+ throw(string("add_frame(): call to start_scanline(y) returned NULL"));
+ return false;
+ }
+
+ if(get_remove_alpha())
+ {
+ for(int i = 0; i < surface.get_w(); i++)
+ colordata[i] = Color::blend(surface[y][i],desc.get_bg_color(),1.0f);
+ }
+ else
+ memcpy(colordata,surface[y],rowspan);
+
+ if(!end_scanline())
+ {
+ throw(string("add_frame(): target panic on end_scanline()"));
+ return false;
+ }
+ }
+ }
+
+ //I'm done with this part
+ sc.amount_complete(100,100);
+ }
+
+ end_frame();
+
+ }else
+ {
+ #endif
+ Surface surface;
+
+ if(!context.accelerated_render(&surface,quality,desc,cb))
+ {
+ if(cb)cb->error(_("Accelerated Renderer Failure"));
+ return false;
+ }
+ else
+ {
+ // Put the surface we renderer
+ // onto the target.
+ if(!add_frame(&surface))
+ {
+ if(cb)cb->error(_("Unable to put surface on target"));
+ return false;
+ }
+ }
+ #if USE_PIXELRENDERING_LIMIT
+ }
+ #endif
+ }
+ }
+
+ }
+ catch(String str)
+ {
+ if(cb)cb->error(_("Caught string :")+str);
+ return false;
+ }
+ catch(std::bad_alloc)
+ {
+ if(cb)cb->error(_("Ran out of memory (Probably a bug)"));
+ return false;
+ }
+ catch(...)
+ {
+ if(cb)cb->error(_("Caught unknown error, rethrowing..."));
+ throw;
+ }
+ return true;
+}
+
+bool
+Target_Scanline::add_frame(const Surface *surface)
+{
+ assert(surface);
+
+
+ int y;
+ int rowspan=sizeof(Color)*surface->get_w();
+ Surface::const_pen pen=surface->begin();
+
+ if(!start_frame())
+ {
+ throw(string("add_frame(): target panic on start_frame()"));
+ return false;
+ }
+
+ for(y=0;y<surface->get_h();y++,pen.inc_y())
+ {
+ Color *colordata= start_scanline(y);
+ if(!colordata)
+ {
+ throw(string("add_frame(): call to start_scanline(y) returned NULL"));
+ return false;
+ }
+
+ if(get_remove_alpha())
+ {
+ for(int i=0;i<surface->get_w();i++)
+ colordata[i]=Color::blend((*surface)[y][i],desc.get_bg_color(),1.0f);
+ }
+ else
+ memcpy(colordata,(*surface)[y],rowspan);
+
+ if(!end_scanline())
+ {
+ throw(string("add_frame(): target panic on end_scanline()"));
+ return false;
+ }
+ }
+
+ end_frame();
+
+ return true;
+}
projects / synfig.git / blobdiff