Remove spaces and tabs at end of lines.

[synfig.git] / synfig-core / trunk / src / modules / mod_imagemagick / trgt_imagemagick.cpp

diff --git a/synfig-core/trunk/src/modules/mod_imagemagick/trgt_imagemagick.cpp b/synfig-core/trunk/src/modules/mod_imagemagick/trgt_imagemagick.cpp
index 0d0cdff..32dd839 100644 (file)
--- a/synfig-core/trunk/src/modules/mod_imagemagick/trgt_imagemagick.cpp
+++ b/synfig-core/trunk/src/modules/mod_imagemagick/trgt_imagemagick.cpp
@@ -6,6 +6,7 @@
 ** $Id$
 **
 **     Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
+**     Copyright (c) 2007 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
@@ -36,6 +37,20 @@
 #include <ETL/stringf>
 #include "trgt_imagemagick.h"
 #include <stdio.h>
+#include <sys/types.h>
+#if HAVE_SYS_WAIT_H
+ #include <sys/wait.h>
+#endif
+#if HAVE_IO_H
+ #include <io.h>
+#endif
+#if HAVE_PROCESS_H
+ #include <process.h>
+#endif
+#if HAVE_FCNTL_H
+ #include <fcntl.h>
+#endif
+#include <unistd.h>
 #include <algorithm>
 #include <functional>
 #include <ETL/clock>
@@ -49,6 +64,12 @@ using namespace synfig;
 using namespace std;
 using namespace etl;
 
+#if defined(HAVE_FORK) && defined(HAVE_PIPE) && defined(HAVE_WAITPID)
+ #define UNIX_PIPE_TO_PROCESSES
+#else
+ #define WIN32_PIPE_TO_PROCESSES
+#endif
+
 /* === G L O B A L S ======================================================= */
 
 SYNFIG_TARGET_INIT(imagemagick_trgt);
@@ -61,6 +82,7 @@ SYNFIG_TARGET_SET_CVS_ID(imagemagick_trgt,"$Id$");
 
 imagemagick_trgt::imagemagick_trgt(const char *Filename)
 {
+       pid=-1;
        file=NULL;
        filename=Filename;
        multi_image=false;
@@ -70,8 +92,15 @@ imagemagick_trgt::imagemagick_trgt(const char *Filename)
 
 imagemagick_trgt::~imagemagick_trgt()
 {
-       if(file)
+       if(file){
+#if defined(WIN32_PIPE_TO_PROCESSES)
                pclose(file);
+#elif defined(UNIX_PIPE_TO_PROCESSES)
+               fclose(file);
+               int status;
+               waitpid(pid,&status,0);
+#endif
+       }
        file=NULL;
        delete [] buffer;
        delete [] color_buffer;
@@ -80,8 +109,7 @@ imagemagick_trgt::~imagemagick_trgt()
 bool
 imagemagick_trgt::set_rend_desc(RendDesc *given_desc)
 {
-       String  ext(find(filename.begin(),filename.end(),'.')+1,filename.end());
-       if(ext=="xpm")
+       if(filename_extension(filename) == ".xpm")
                pf=PF_RGB;
        else
                pf=PF_RGB|PF_A;
@@ -111,26 +139,100 @@ imagemagick_trgt::end_frame()
        {
                fputc(0,file);
                fflush(file);
+#if defined(WIN32_PIPE_TO_PROCESSES)
                pclose(file);
+#elif defined(UNIX_PIPE_TO_PROCESSES)
+               fclose(file);
+               int status;
+               waitpid(pid,&status,0);
+#endif
        }
        file=NULL;
+       imagecount++;
 }
 
 bool
 imagemagick_trgt::start_frame(synfig::ProgressCallback *cb)
 {
-       string command;
+       const char *msg=_("Unable to open pipe to imagemagick's convert utility");
+
+       string newfilename;
 
-       if(channels(pf)==4)
-               command=strprintf("convert -depth 8 -size %dx%d rgba:-[0] -density %dx%d  \"%s\"\n",desc.get_w(),desc.get_h(),round_to_int(desc.get_x_res()/39.3700787402),round_to_int(desc.get_y_res()/39.3700787402),filename.c_str());
+       if (multi_image)
+               newfilename = (filename_sans_extension(filename) +
+                                          etl::strprintf(".%04d",imagecount) +
+                                          filename_extension(filename));
        else
-               command=strprintf("convert -depth 8 -size %dx%d rgb:-[0] -density %dx%d \"%s\"\n",desc.get_w(),desc.get_h(),round_to_int(desc.get_x_res()/39.3700787402),round_to_int(desc.get_y_res()/39.3700787402),filename.c_str());
+               newfilename = filename;
+
+#if defined(WIN32_PIPE_TO_PROCESSES)
+
+       string command;
+
+       command=strprintf("convert -depth 8 -size %dx%d rgb%s:-[0] -density %dx%d \"%s\"\n",
+                         desc.get_w(), desc.get_h(),                                   // size
+                         ((channels(pf) == 4) ? "a" : ""),                             // rgba or rgb?
+                         round_to_int(desc.get_x_res()/39.3700787402), // density
+                         round_to_int(desc.get_y_res()/39.3700787402),
+                         newfilename.c_str());
 
-       file=popen(command.c_str(),"w");
+       file=popen(command.c_str(),POPEN_BINARY_WRITE_TYPE);
+
+#elif defined(UNIX_PIPE_TO_PROCESSES)
+
+       int p[2];
+
+       if (pipe(p)) {
+               if(cb) cb->error(N_(msg));
+               else synfig::error(N_(msg));
+               return false;
+       };
+
+       pid = fork();
+
+       if (pid == -1) {
+               if(cb) cb->error(N_(msg));
+               else synfig::error(N_(msg));
+               return false;
+       }
+
+       if (pid == 0){
+               // Child process
+               // Close pipeout, not needed
+               close(p[1]);
+               // Dup pipeout to stdin
+               if( dup2( p[0], STDIN_FILENO ) == -1 ){
+                       if(cb) cb->error(N_(msg));
+                       else synfig::error(N_(msg));
+                       return false;
+               }
+               // Close the unneeded pipeout
+               close(p[0]);
+               execlp("convert", "convert",
+                       "-depth", "8",
+                       "-size", strprintf("%dx%d", desc.get_w(), desc.get_h()).c_str(),
+                       ((channels(pf) == 4) ? "rgba:-[0]" : "rgb:-[0]"),
+                       "-density", strprintf("%dx%d", round_to_int(desc.get_x_res()/39.3700787402), round_to_int(desc.get_y_res()/39.3700787402)).c_str(),
+                       newfilename.c_str(),
+                       (const char *)NULL);
+               // We should never reach here unless the exec failed
+               if(cb) cb->error(N_(msg));
+               else synfig::error(N_(msg));
+               return false;
+       } else {
+               // Parent process
+               // Close pipein, not needed
+               close(p[0]);
+               // Save pipeout to file handle, will write to it later
+               file = fdopen(p[1], "wb");
+       }
+
+#else
+       #error There are no known APIs for creating child processes
+#endif
 
        if(!file)
        {
-               const char *msg=_("Unable to open pipe to imagemagick's convert utility");
                if(cb)cb->error(N_(msg));
                else synfig::error(N_(msg));
                return false;