1 /* === S Y N F I G ========================================================= */
2 /*! \file trgt_ppm.cpp
3 ** \brief ppm Target Module
4 **
5 ** $Id$
6 **
7 ** \legal
8 ** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
9 ** Copyright (c) 2007 Chris Moore
10 **
11 ** This package is free software; you can redistribute it and/or
12 ** modify it under the terms of the GNU General Public License as
13 ** published by the Free Software Foundation; either version 2 of
14 ** the License, or (at your option) any later version.
15 **
16 ** This package is distributed in the hope that it will be useful,
17 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
18 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 ** General Public License for more details.
20 ** \endlegal
21 **
22 ** === N O T E S ===========================================================
23 **
24 ** ========================================================================= */
25
26 /* === H E A D E R S ======================================================= */
27
28 #ifdef USING_PCH
29 # include "pch.h"
30 #else
31 #ifdef HAVE_CONFIG_H
32 # include <config.h>
33 #endif
34
35 #include "trgt_ppm.h"
36 #include <ETL/stringf>
37 #include <cstdio>
38 #include <algorithm>
39 #include <functional>
40 #endif
41
42 /* === M A C R O S ========================================================= */
43
44 using namespace synfig;
45 using namespace std;
46 using namespace etl;
47
48 /* === G L O B A L S ======================================================= */
49
50 SYNFIG_TARGET_INIT(ppm);
51 SYNFIG_TARGET_SET_NAME(ppm,"ppm");
52 SYNFIG_TARGET_SET_EXT(ppm,"ppm");
53 SYNFIG_TARGET_SET_VERSION(ppm,"0.1");
54 SYNFIG_TARGET_SET_CVS_ID(ppm,"$Id$");
55
56 /* === M E T H O D S ======================================================= */
57
ppm(const char * Filename,const synfig::TargetParam & params)58 ppm::ppm(const char *Filename, const synfig::TargetParam ¶ms):
59 imagecount(),
60 multi_image(false),
61 file(),
62 filename(Filename),
63 color_buffer(NULL),
64 buffer(NULL),
65 sequence_separator(params.sequence_separator)
66 {
67 set_alpha_mode(TARGET_ALPHA_MODE_FILL);
68 }
69
~ppm()70 ppm::~ppm()
71 {
72 delete [] buffer;
73 delete [] color_buffer;
74 }
75
76 bool
set_rend_desc(RendDesc * given_desc)77 ppm::set_rend_desc(RendDesc *given_desc)
78 {
79 //given_desc->set_pixel_format(PF_RGB);
80 desc=*given_desc;
81 imagecount=desc.get_frame_start();
82 if(desc.get_frame_end()-desc.get_frame_start()>0)
83 multi_image=true;
84 else
85 multi_image=false;
86 return true;
87 }
88
89 void
end_frame()90 ppm::end_frame()
91 {
92 imagecount++;
93 }
94
95 bool
start_frame(synfig::ProgressCallback * callback)96 ppm::start_frame(synfig::ProgressCallback *callback)
97 {
98 int w=desc.get_w(),h=desc.get_h();
99
100 if(filename=="-")
101 {
102 if(callback)callback->task(strprintf("(stdout) %d",imagecount).c_str());
103 file=SmartFILE(stdout);
104 }
105 else if(multi_image)
106 {
107 String newfilename(filename_sans_extension(filename) +
108 sequence_separator +
109 etl::strprintf("%04d",imagecount) +
110 filename_extension(filename));
111 file=SmartFILE(fopen(newfilename.c_str(),POPEN_BINARY_WRITE_TYPE));
112 if(callback)callback->task(newfilename);
113 }
114 else
115 {
116 file=SmartFILE(fopen(filename.c_str(),POPEN_BINARY_WRITE_TYPE));
117 if(callback)callback->task(filename);
118 }
119
120 if(!file)
121 return false;
122
123 fprintf(file.get(), "P6\n");
124 fprintf(file.get(), "%d %d\n", w, h);
125 fprintf(file.get(), "%d\n", 255);
126
127 delete [] buffer;
128 buffer=new unsigned char[3*w];
129
130 delete [] color_buffer;
131 color_buffer=new Color[desc.get_w()];
132
133 return true;
134 }
135
136 Color *
start_scanline(int)137 ppm::start_scanline(int /*scanline*/)
138 {
139 return color_buffer;
140 }
141
142 bool
end_scanline()143 ppm::end_scanline()
144 {
145 if(!file)
146 return false;
147
148 convert_color_format(buffer, color_buffer, desc.get_w(), PF_RGB, gamma());
149
150 if(!fwrite(buffer,1,desc.get_w()*3,file.get()))
151 return false;
152
153 return true;
154 }
155