X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=synfig-core%2Ftrunk%2Fsrc%2Fmodules%2Fmod_imagemagick%2Ftrgt_imagemagick.cpp;h=32dd839f4647235b66c0bf51a22cdac43d1b46a4;hb=9459638ad6797b8139f1e9f0715c96076dbf0890;hp=88dd95affbd48c923ccbea96ae79952afc269c93;hpb=f3851fac7d820c805f7b1756b1216383ec80390e;p=synfig.git

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 88dd95a..32dd839 100644
--- 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;
@@ -110,7 +139,13 @@ 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++;
@@ -119,7 +154,8 @@ imagemagick_trgt::end_frame()
 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 (multi_image)
@@ -129,18 +165,74 @@ imagemagick_trgt::start_frame(synfig::ProgressCallback *cb)
 	else
 		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());
+	                  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(),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;