+++ /dev/null
-/* === S Y N F I G ========================================================= */
-/*! \file synfig/render.cpp
-** \brief Renderer
-**
-** $Id$
-**
-** \legal
-** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
-**
-** 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 ======================================================= */
-
-#define SYNFIG_NO_ANGLE
-
-#ifdef USING_PCH
-# include "pch.h"
-#else
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#ifndef WIN32
-#include <unistd.h>
-#include <sys/types.h>
-#include <signal.h>
-#endif
-
-#include "render.h"
-#include "target.h"
-#include "canvas.h"
-#include <ETL/handle>
-#include <cassert>
-#include "context.h"
-#include "surface.h"
-
-#endif
-
-using namespace std;
-using namespace synfig;
-using namespace etl;
-
-/* === M A C R O S ========================================================= */
-
-/* === P R O C E D U R E S ================================================= */
-
-bool
-synfig::parametric_render(
- Context context,
- Surface &surface,
- const RendDesc &desc,
- ProgressCallback *callback
-)
-{
- Point::value_type
- u,v, // Current location in image
- su,sv, // Starting locations
- du, dv, // Distance between pixels
- dsu,dsv; // Distance between subpixels
-
- bool
- no_clamp=!desc.get_clamp();
-
- int
- w(desc.get_w()),
- h(desc.get_h()),
- a(desc.get_antialias());
-
- Point
- tl(desc.get_tl()),
- br(desc.get_br());
-
- //Gamma
- // gamma(desc.get_gamma());
-
- int
- x,y, // Current location on output bitmap
- x2,y2; // Subpixel counters
-
- Color::value_type
- pool; // Alpha pool (for correct alpha antialiasing)
-
- // Calculate the number of channels
- //chan=channels(desc.get_pixel_format());
-
- // Calculate the distance between pixels
- du=(br[0]-tl[0])/(Point::value_type)w;
- dv=(br[1]-tl[1])/(Point::value_type)h;
-
- // Calculate the distance between sub pixels
- dsu=du/(Point::value_type)a;
- dsv=dv/(Point::value_type)a;
-
- // Calculate the starting points
- //su=tl[0]+(du-dsu)/(Point::value_type)2.0;
- //sv=tl[1]-(dv-dsv)/(Point::value_type)2.0;
- su=tl[0];
- sv=tl[1];
-
- surface.set_wh(desc.get_w(),desc.get_h());
-
- assert(surface);
-
- // Loop through all horizontal lines
- for(y=0,v=sv;y<h;y++,v+=dv)
- {
- // Set the current pixel pointer
- // to the start of the line
- Color *colordata=surface[y];
-
- assert(colordata);
-
- // If we have a callback that we need
- // to report to, do so now.
- if(callback)
- if( callback->amount_complete(y,h) == false )
- {
- // If the callback returns false,
- // then the render has been aborted.
-
- return false;
- }
-
- // Loop through every pixel in row
- for(x=0,u=su;x<w;x++,u+=du)
- {
- Color &c(*(colordata++));
- c=Color::alpha();
-
- // Loop through all subpixels
- for(y2=0,pool=0;y2<a;y2++)
- for(x2=0;x2<a;x2++)
- {
- Color color=context.get_color(
- Point(
- u+(Point::value_type)(x2)*dsu,
- v+(Point::value_type)(y2)*dsv
- )
- );
- if(!no_clamp)
- {
- color=color.clamped();
- c+=color*color.get_a();
- pool+=color.get_a();
- }
- else
- {
- c+=color*color.get_a();
- pool+=color.get_a();
- }
- }
- if(pool)
- c/=pool;
- }
- }
-
- // Give the callback one more last call,
- // this time with the full height as the
- // current line
- if(callback)
- callback->amount_complete(h,h);
-
- // Report our success
- return(true);
-}
-
-bool
-synfig::render(
- Context context,
- Target_Scanline::Handle target,
- const RendDesc &desc,
- ProgressCallback *callback)
-{
- Point::value_type
- u,v, // Current location in image
- su,sv, // Starting locations
- du, dv, // Distance between pixels
- dsu,dsv; // Distance between subpixels
-
- bool
- no_clamp=!desc.get_clamp();
-
- int
- w(desc.get_w()),
- h(desc.get_h()),
- a(desc.get_antialias());
-
- Point
- tl(desc.get_tl()),
- br(desc.get_br());
-
- //Gamma
- // gamma(desc.get_gamma());
-
- int
- x,y, // Current location on output bitmap
- x2,y2; // Subpixel counters
-
- Color::value_type
- pool; // Alpha pool (for correct alpha antialiasing)
-
- assert(target);
-
- // If we do not have a target then bail
- if(!target)
- return false;
-
- // Calculate the number of channels
- //chan=channels(desc.get_pixel_format());
-
- // Calculate the distance between pixels
- du=(br[0]-tl[0])/(Point::value_type)w;
- dv=(br[1]-tl[1])/(Point::value_type)h;
-
- // Calculate the distance between sub pixels
- dsu=du/(Point::value_type)a;
- dsv=dv/(Point::value_type)a;
-
- // Calculate the starting points
- su=tl[0]+(du-dsu)/(Point::value_type)2.0;
- sv=tl[1]-(dv-dsv)/(Point::value_type)2.0;
-
- // Mark the start of a new frame.
- if(!target->start_frame(callback))
- return false;
-
- // Loop through all horizontal lines
- for(y=0,v=sv;y<h;y++,v+=dv)
- {
- // Set the current pixel pointer
- // to the start of the line
- Color *colordata=target->start_scanline(y);
-
- if(!colordata)
- {
- if(callback)callback->error(_("Target panic"));
- else throw(string(_("Target panic")));
- return false;
- }
-
- // If we have a callback that we need
- // to report to, do so now.
- if(callback)
- if( callback->amount_complete(y,h) == false )
- {
- // If the callback returns false,
- // then the render has been aborted.
- // Exit gracefully.
-
- target->end_scanline();
- target->end_frame();
- return false;
- }
-
- // Loop through every pixel in row
- for(x=0,u=su;x<w;x++,u+=du)
- {
- Color &c(*(colordata++));
- c=Color::alpha();
-
- // Loop through all subpixels
- for(y2=0,pool=0;y2<a;y2++)
- for(x2=0;x2<a;x2++)
- {
- Color color=context.get_color(
- Point(
- u+(Point::value_type)(x2)*dsu,
- v+(Point::value_type)(y2)*dsv
- )
- );
- if(!no_clamp)
- {
- color=color.clamped();
- c+=color*color.get_a();
- pool+=color.get_a();
- }
- else
- {
- c+=color*color.get_a();
- pool+=color.get_a();
- }
- }
- if(pool)
- c/=pool;
- }
-
- // Send the buffer to the render target.
- // If anything goes wrong, cleanup and bail.
- if(!target->end_scanline())
- {
- if(callback)callback->error(_("Target panic"));
- else throw(string(_("Target panic")));
- return false;
- }
- }
-
- // Finish up the target's frame
- target->end_frame();
-
- // Give the callback one more last call,
- // this time with the full height as the
- // current line
- if(callback)
- callback->amount_complete(h,h);
-
- // Report our success
- return(true);
-}
-
-bool
-synfig::render_threaded(
- Context context,
- Target_Scanline::Handle target,
- const RendDesc &desc,
- ProgressCallback *callback,
- int threads)
-{
-#ifndef WIN32
- struct _render_thread
- {
- int
- pipe_read,
- pipe_write,
- pid;
- _render_thread()
- {
- pipe(&pipe_read);
- pid=0;
- }
- ~_render_thread()
- {
- close(pipe_read);
- close(pipe_write);
- if(pid)
- {
- kill(pid,9);
- }
- }
- } *render_thread;
-
- int i, mythread=-1;
-
- Point::value_type
- u,v, // Current location in image
- su,sv, // Starting locations
- du, dv, // Distance between pixels
- dsu,dsv; // Distance between subpixels
-
- bool
- no_clamp=!desc.get_clamp();
-
- int
- w(desc.get_w()),
- h(desc.get_h()),
- a(desc.get_antialias());
-
- Point
- tl(desc.get_tl()),
- br(desc.get_br());
-
- int
- x,y, // Current location on output bitmap
- x2,y2; // Subpixel counters
-
- Color::value_type
- pool; // Alpha pool (for correct alpha antialiasing)
-
- assert(target);
-
- // If we do not have a target then bail
- if(!target)
- return false;
-
- // Calculate the distance between pixels
- du=(br[0]-tl[0])/(Point::value_type)w;
- dv=(br[1]-tl[1])/(Point::value_type)h;
-
- // Calculate the distance between sub pixels
- dsu=du/(Point::value_type)a;
- dsv=dv/(Point::value_type)a;
-
- // Calculate the starting points
- su=tl[0]+(du-dsu)/(Point::value_type)2.0;
- sv=tl[1]-(dv-dsv)/(Point::value_type)2.0;
-
- render_thread=new _render_thread[threads];
-
- // Start the forks
- for(i=0;i<threads;i++)
- {
- int pid=fork();
- if(pid==0)
- {
- mythread=i;
- goto renderthread;
- }
- render_thread[i].pid=pid;
- }
-
- // Mark the start of a new frame.
- if(!target->start_frame(callback))
- return false;
-
- for(y=0;y<h;y++)
- {
- // Set the current pixel pointer
- // to the start of the line
- Color *colordata(target->start_scanline(y));
-
- if(!colordata)
- {
- if(callback)callback->error(_("Target panic"));
- else throw(string(_("Target panic")));
- return false;
- }
-
- // If we have a callback that we need
- // to report to, do so now.
- if(callback)
- if( callback->amount_complete(y,h) == false )
- {
- // If the callback returns false,
- // then the render has been aborted.
- // Exit gracefully.
-
- target->end_scanline();
- target->end_frame();
- delete [] render_thread;
- return false;
- }
-
- read(render_thread[y%threads].pipe_read,colordata,w*sizeof(Color));
-
- // Send the buffer to the render target.
- // If anything goes wrong, cleanup and bail.
- if(!target->end_scanline())
- {
- delete [] render_thread;
- if(callback)callback->error(_("Target panic"));
- else throw(string(_("Target panic")));
- return false;
- }
- }
-
- // Finish up the target's frame
- target->end_frame();
-
- // Give the callback one more last call,
- // this time with the full height as the
- // current line
- if(callback)
- callback->amount_complete(h,h);
-
- delete [] render_thread;
- return true;
-
-renderthread:
-
- // Change the random seed, so that each thread has a different one
- srand(mythread*20+threads+time(0));
-
- Color *buffer(new Color[w]);
-
- // Loop through all horizontal lines
- for(y=mythread,v=sv+dv*(Real)mythread;y<h;y+=threads,v+=dv*(Real)threads)
- {
- // Set the current pixel pointer
- // to the start of the line
- Color* colordata(buffer);
-
- // Loop through every pixel in row
- for(x=0,u=su;x<w;x++,u+=du)
- {
- Color &c(*(colordata++));
- c=Color::alpha();
-
- // Loop through all subpixels
- for(y2=0,pool=0;y2<a;y2++)
- for(x2=0;x2<a;x2++)
- {
- Color color=context.get_color(
- Point(
- u+(Point::value_type)(x2)*dsu,
- v+(Point::value_type)(y2)*dsv
- )
- );
- if(!no_clamp)
- {
- color=color.clamped();
- c+=color*color.get_a();
- pool+=color.get_a();
- }
- else
- {
- c+=color*color.get_a();
- pool+=color.get_a();
- }
- }
- if(pool)
- c/=pool;
- }
-
- // Send the buffer to the primary thread.
- write(render_thread[mythread].pipe_write,buffer,w*sizeof(Color));
- }
-
- delete [] buffer;
-
- _exit(0);
- return false;
-#else
- return render(context, target, desc, callback);
-
-#endif
-}
projects / synfig.git / blobdiff