void
software::Contour::render_contour(
synfig::Surface &target_surface,
const rendering::Contour::ChunkList &chunks,
bool invert,
bool antialias,
rendering::Contour::WindingStyle winding_style,
const Matrix &transform_matrix,
const Color &color,
Color::value_type opacity,
Color::BlendMethod blend_method )
{
Polyspan polyspan;
polyspan.init(0, 0, target_surface.get_w(), target_surface.get_h());
build_polyspan(chunks, transform_matrix, polyspan);
polyspan.sort_marks();
return render_polyspan(
target_surface,
polyspan,
invert,
antialias,
winding_style,
color,
opacity,
blend_method );
}
void Instance::save_surface(const synfig::Surface &surface, const synfig::String &filename)
{
if (surface.get_h() <= 0 || surface.get_w() <= 0) return;
String ext = filename_extension(filename);
if (ext.empty()) return;
ext.erase(0, 1);
String tmpfile = FileContainerTemporary::generate_temporary_filename();
etl::handle<Target_Scanline> target
= etl::handle<Target_Scanline>(Target::create(Target::ext_book()[ext],tmpfile,TargetParam()));
if (!target) return;
target->set_canvas(get_canvas());
RendDesc desc;
desc.set_w(surface.get_w());
desc.set_h(surface.get_h());
desc.set_x_res(1);
desc.set_y_res(1);
desc.set_frame_rate(1);
desc.set_frame(0);
desc.set_frame_start(0);
desc.set_frame_end(0);
target->set_rend_desc(&desc);
target->add_frame(&surface);
target = NULL;
FileSystem::copy(FileSystemNative::instance(), tmpfile, get_file_system(), filename);
FileSystemNative::instance()->file_remove(tmpfile);
}
bool
exr_mptr::get_frame(synfig::Surface &out_surface, const synfig::RendDesc &/*renddesc*/, Time, synfig::ProgressCallback *cb)
{
try
{
Imf::RgbaInputFile in(identifier.filename.c_str());
int w = in.dataWindow().max.x - in.dataWindow().min.x + 1;
int h = in.dataWindow().max.y - in.dataWindow().min.y + 1;
//int dx = in.dataWindow().min.x;
//int dy = in.dataWindow().min.y;
etl::surface<Imf::Rgba> in_surface;
in_surface.set_wh(w,h);
in.setFrameBuffer (reinterpret_cast<Imf::Rgba *>(in_surface[0]), 1, w);
in.readPixels (in.dataWindow().min.y, in.dataWindow().max.y);
int x;
int y;
out_surface.set_wh(w,h);
for(y=0;y<out_surface.get_h();y++)
for(x=0;x<out_surface.get_w();x++)
{
Color &color(out_surface[y][x]);
Imf::Rgba &rgba(in_surface[y][x]);
color.set_r(rgba.r);
color.set_g(rgba.g);
color.set_b(rgba.b);
color.set_a(rgba.a);
}
}
catch (const std::exception& e)
{
if(cb)cb->error(e.what());
else synfig::error(e.what());
return false;
}
return true;
}
void
Action::LayerPaint::PaintStroke::copy_to_cairo_surface(const synfig::Surface &surface, synfig::CairoSurface &csurface)
{
int stride = cairo_format_stride_for_width(CAIRO_FORMAT_ARGB32, surface.get_w());
unsigned char *data = (unsigned char*)malloc(stride * surface.get_h());
unsigned char *p = data;
for(int y = 0; y < surface.get_h(); ++y, p += stride)
{
CairoColor *c = (CairoColor*)p;
for(int x = 0; x < surface.get_w(); ++x, ++c)
*c = CairoColor(surface[y][x]);
}
cairo_surface_t *cs = cairo_image_surface_create_for_data(
data,
CAIRO_FORMAT_ARGB32,
surface.get_w(),
surface.get_h(),
stride );
csurface.set_cairo_surface(cs);
csurface.map_cairo_image();
cairo_surface_destroy(cs);
}
bool
bmp_mptr::get_frame(synfig::Surface &surface, const synfig::RendDesc &/*renddesc*/, Time /*time*/, synfig::ProgressCallback *cb)
{
FILE *file=fopen(filename.c_str(),"rb");
if(!file)
{
if(cb)cb->error("bmp_mptr::GetFrame(): "+strprintf(_("Unable to open %s"),filename.c_str()));
else synfig::error("bmp_mptr::GetFrame(): "+strprintf(_("Unable to open %s"),filename.c_str()));
return false;
}
synfig::BITMAPFILEHEADER fileheader;
synfig::BITMAPINFOHEADER infoheader;
char b_char=fgetc(file);
char m_char=fgetc(file);
if(b_char!='B' || m_char!='M')
{
if(cb)cb->error("bmp_mptr::GetFrame(): "+strprintf(_("%s is not in BMP format"),filename.c_str()));
else synfig::error("bmp_mptr::GetFrame(): "+strprintf(_("%s is not in BMP format"),filename.c_str()));
return false;
}
if(fread(&fileheader.bfSize, 1, sizeof(synfig::BITMAPFILEHEADER)-4, file)!=sizeof(synfig::BITMAPFILEHEADER)-4)
{
String str("bmp_mptr::get_frame(): "+strprintf(_("Failure while reading BITMAPFILEHEADER from %s"),filename.c_str()));
if(cb)cb->error(str);
else synfig::error(str);
return false;
}
if(fread(&infoheader, 1, sizeof(synfig::BITMAPINFOHEADER), file)!=sizeof(synfig::BITMAPINFOHEADER))
{
String str("bmp_mptr::get_frame(): "+strprintf(_("Failure while reading BITMAPINFOHEADER from %s"),filename.c_str()));
if(cb)cb->error(str);
else synfig::error(str);
return false;
}
int offset=little_endian(fileheader.bfOffsetBits);
if(offset!=sizeof(synfig::BITMAPFILEHEADER)+sizeof(synfig::BITMAPINFOHEADER)-2)
{
String str("bmp_mptr::get_frame(): "+strprintf(_("Bad BITMAPFILEHEADER in %s. (bfOffsetBits=%d, should be %d)"),filename.c_str(),offset,sizeof(synfig::BITMAPFILEHEADER)+sizeof(synfig::BITMAPINFOHEADER)-2));
if(cb)cb->error(str);
else synfig::error(str);
return false;
}
if(little_endian(infoheader.biSize)!=little_endian(40))
{
String str("bmp_mptr::get_frame(): "+strprintf(_("Bad BITMAPINFOHEADER in %s. (biSize=%d, should be 40)"),filename.c_str(),little_endian(infoheader.biSize)));
if(cb)cb->error(str);
else synfig::error(str);
return false;
}
int w,h,bit_count;
w=little_endian(infoheader.biWidth);
h=little_endian(infoheader.biHeight);
bit_count=little_endian_short(infoheader.biBitCount);
synfig::warning("w:%d\n",w);
synfig::warning("h:%d\n",h);
synfig::warning("bit_count:%d\n",bit_count);
if(little_endian(infoheader.biCompression))
{
if(cb)cb->error("bmp_mptr::GetFrame(): "+string(_("Reading compressed bitmaps is not supported")));
else synfig::error("bmp_mptr::GetFrame(): "+string(_("Reading compressed bitmaps is not supported")));
return false;
}
if(bit_count!=24 && bit_count!=32)
{
if(cb)cb->error("bmp_mptr::GetFrame(): "+strprintf(_("Unsupported bit depth (bit_count=%d, should be 24 or 32)"),bit_count));
else synfig::error("bmp_mptr::GetFrame(): "+strprintf(_("Unsupported bit depth (bit_count=%d, should be 24 or 32)"),bit_count));
return false;
}
int x;
int y;
surface.set_wh(w,h);
for(y=0;y<surface.get_h();y++)
for(x=0;x<surface.get_w();x++)
{
// float b=(float)(unsigned char)fgetc(file)*(1.0/255.0);
// float g=(float)(unsigned char)fgetc(file)*(1.0/255.0);
// float r=(float)(unsigned char)fgetc(file)*(1.0/255.0);
float b=gamma().b_U8_to_F32((unsigned char)fgetc(file));
float g=gamma().g_U8_to_F32((unsigned char)fgetc(file));
float r=gamma().r_U8_to_F32((unsigned char)fgetc(file));
surface[h-y-1][x]=Color(
r,
g,
b,
1.0
);
if(bit_count==32)
fgetc(file);
}
fclose(file);
return true;
}
bool
imagemagick_mptr::get_frame(synfig::Surface &surface, const synfig::RendDesc &renddesc, Time /*time*/, synfig::ProgressCallback *cb)
{
//#define HAS_LIBPNG 1
#if 1
if(identifier.filename.empty())
{
if(cb)cb->error(_("No file to load"));
else synfig::error(_("No file to load"));
return false;
}
string temp_file="/tmp/deleteme.png";
string temp_container_file="";
// todo: "container:" and "images" literals
if (identifier.filename.substr(0, String("#images/").size())=="#images/")
{
temp_container_file = "/tmp/synfigtmp.png";
// try to copy file to a temp file
if (!FileSystem::copy(identifier.file_system, identifier.filename, identifier.file_system, temp_container_file))
{
if(cb)cb->error(_("Cannot create temporary file of ")+ identifier.filename);
else synfig::error(_("Cannot create temporary file of ")+ identifier.filename);
return false;
}
}
string filename = temp_container_file.size() == 0 ? identifier.filename : temp_container_file;
#if defined(WIN32_PIPE_TO_PROCESSES)
if(file)
pclose(file);
string command;
if(identifier.filename.find("psd")!=String::npos)
command=strprintf("convert \"%s\" -flatten \"png32:%s\"\n",filename.c_str(),temp_file.c_str());
else
command=strprintf("convert \"%s\" \"png32:%s\"\n",filename.c_str(),temp_file.c_str());
if(system(command.c_str())!=0)
return false;
#elif defined(UNIX_PIPE_TO_PROCESSES)
string output="png32:"+temp_file;
pid_t pid = fork();
if (pid == -1) {
return false;
}
if (pid == 0){
// Child process
if(identifier.filename.find("psd")!=String::npos)
execlp("convert", "convert", filename.c_str(), "-flatten", output.c_str(), (const char *)NULL);
else
execlp("convert", "convert", filename.c_str(), output.c_str(), (const char *)NULL);
// We should never reach here unless the exec failed
return false;
}
int status;
waitpid(pid, &status, 0);
if( (WIFEXITED(status) && WEXITSTATUS(status) != 0) || !WIFEXITED(status) )
return false;
#else
#error There are no known APIs for creating child processes
#endif
//if any delete container tmp file
if(temp_container_file.size())
identifier.file_system->file_remove(temp_container_file);
Importer::Handle importer(Importer::open(synfig::FileSystem::Identifier(synfig::FileSystemNative::instance(), temp_file)));
if(!importer)
{
if(cb)cb->error(_("Unable to open ")+temp_file);
else synfig::error(_("Unable to open ")+temp_file);
return false;
}
if(!importer->get_frame(surface,renddesc,0,cb))
{
if(cb)cb->error(_("Unable to get frame from ")+temp_file);
else synfig::error(_("Unable to get frame from ")+temp_file);
return false;
}
if(!surface)
{
if(cb)cb->error(_("Bad surface from ")+temp_file);
else synfig::error(_("Bad surface from ")+temp_file);
return false;
}
if(1)
{
// remove odd premultiplication
for(int i=0;i<surface.get_w()*surface.get_h();i++)
{
Color c(surface[0][i]);
if(c.get_a())
{
surface[0][i].set_r(c.get_r()/c.get_a()/c.get_a());
surface[0][i].set_g(c.get_g()/c.get_a()/c.get_a());
surface[0][i].set_b(c.get_b()/c.get_a()/c.get_a());
}
else
{
surface[0][i].set_r(0);
surface[0][i].set_g(0);
surface[0][i].set_b(0);
}
surface[0][i].set_a(c.get_a());
}
}
Surface bleh(surface);
surface=bleh;
//remove(temp_file.c_str());
return true;
#else
#error This code contains tempfile and arbitrary shell command execution vulnerabilities
if(file)
pclose(file);
string command;
if(identifier.filename.empty())
{
if(cb)cb->error(_("No file to load"));
else synfig::error(_("No file to load"));
return false;
}
command=strprintf("convert \"%s\" -flatten ppm:-\n",identifier.filename.c_str());
file=popen(command.c_str(),POPEN_BINARY_READ_TYPE);
if(!file)
{
if(cb)cb->error(_("Unable to open pipe to imagemagick"));
else synfig::error(_("Unable to open pipe to imagemagick"));
return false;
}
int w,h;
float divisor;
char cookie[2];
while((cookie[0]=fgetc(file))!='P' && !feof(file));
if(feof(file))
{
if(cb)cb->error(_("Reached end of stream without finding PPM header"));
else synfig::error(_("Reached end of stream without finding PPM header"));
return false;
}
cookie[1]=fgetc(file);
if(cookie[0]!='P' || cookie[1]!='6')
{
if(cb)cb->error(string(_("stream not in PPM format"))+" \""+cookie[0]+cookie[1]+'"');
else synfig::error(string(_("stream not in PPM format"))+" \""+cookie[0]+cookie[1]+'"');
return false;
}
fgetc(file);
fscanf(file,"%d %d\n",&w,&h);
fscanf(file,"%f",&divisor);
fgetc(file);
if(feof(file))
{
if(cb)cb->error(_("Premature end of file (after header)"));
else synfig::error(_("Premature end of file (after header)"));
return false;
}
int x;
int y;
frame.set_wh(w,h);
for(y=0;y<frame.get_h();y++)
for(x=0;x<frame.get_w();x++)
{
if(feof(file))
{
if(cb)cb->error(_("Premature end of file"));
else synfig::error(_("Premature end of file"));
return false;
}
float b=gamma().r_U8_to_F32((unsigned char)fgetc(file));
float g=gamma().g_U8_to_F32((unsigned char)fgetc(file));
float r=gamma().b_U8_to_F32((unsigned char)fgetc(file));
/*
float b=(float)(unsigned char)fgetc(file)/divisor;
float g=(float)(unsigned char)fgetc(file)/divisor;
float r=(float)(unsigned char)fgetc(file)/divisor;
*/
frame[y][x]=Color(
b,
g,
r,
1.0
);
}
surface=frame;
return true;
#endif
}
void
software::Contour::render_polyspan(
synfig::Surface &target_surface,
const Polyspan &polyspan,
bool invert,
bool antialias,
rendering::Contour::WindingStyle winding_style,
const Color &color,
Color::value_type opacity,
Color::BlendMethod blend_method )
{
bool simple_fill = (Color::BLEND_METHODS_OVERWRITE_ON_ALPHA_ONE & (1 << blend_method))
&& fabsf(1.f - opacity*color.get_a()) <= 1e-6;
synfig::Surface::alpha_pen p(target_surface.begin(), opacity, blend_method);
synfig::Surface::pen sp(target_surface.begin());
const RectInt &window = polyspan.get_window();
const Polyspan::cover_array &covers = polyspan.get_covers();
Polyspan::cover_array::const_iterator cur_mark = covers.begin();
Polyspan::cover_array::const_iterator end_mark = covers.end();
Real cover = 0, area = 0, alpha = 0;
int y = 0, x = 0;
p.set_value(color);
sp.set_value(color);
cover = 0;
if (cur_mark == end_mark)
{
// no marks at all
if (invert)
{
if (simple_fill)
{
sp.move_to(window.minx, window.miny);
sp.put_block(window.maxy - window.miny, window.maxx - window.minx);
}
else
{
p.move_to(window.minx, window.miny);
p.put_block(window.maxy - window.miny, window.maxx - window.minx);
}
}
return;
}
// fill initial rect / line
if (invert)
{
if (simple_fill)
{
// fill all the area above the first vertex
sp.move_to(window.minx, window.miny);
y = window.miny;
int l = window.maxx - window.minx;
sp.put_block(cur_mark->y - window.miny, l);
// fill the area to the left of the first vertex on that line
l = cur_mark->x - window.minx;
sp.move_to(window.minx, cur_mark->y);
if (l) sp.put_hline(l);
}
else
{
// fill all the area above the first vertex
p.move_to(window.minx, window.miny);
y = window.miny;
int l = window.maxx - window.minx;
p.put_block(cur_mark->y - window.miny, l);
// fill the area to the left of the first vertex on that line
l = cur_mark->x - window.minx;
p.move_to(window.minx, cur_mark->y);
if (l) p.put_hline(l);
}
}
while(true)
{
y = cur_mark->y;
x = cur_mark->x;
p.move_to(x,y);
area = cur_mark->area;
cover += cur_mark->cover;
// accumulate for the current pixel
while(++cur_mark != covers.end())
{
if (y != cur_mark->y || x != cur_mark->x)
break;
area += cur_mark->area;
cover += cur_mark->cover;
}
// draw pixel - based on covered area
if (area) // if we're ok, draw the current pixel
{
alpha = polyspan.extract_alpha(cover - area, winding_style);
if (invert) alpha = 1 - alpha;
if (antialias)
{
if (alpha) p.put_value_alpha(alpha);
}
else
{
if (alpha >= .5) p.put_value();
}
p.inc_x();
++x;
}
// if we're done, don't use iterator and exit
if (cur_mark == end_mark) break;
// if there is no more live pixels on this line, goto next
if (y != cur_mark->y)
{
if (invert)
{
// fill the area at the end of the line
if (simple_fill)
{
sp.move_to(p);
sp.put_hline(window.maxx - x);
}
else
{
p.put_hline(window.maxx - x);
}
// fill area at the beginning of the next line
if (simple_fill)
{
sp.move_to(window.minx, cur_mark->y);
sp.put_hline(cur_mark->x - window.minx);
}
else
{
p.move_to(window.minx, cur_mark->y);
p.put_hline(cur_mark->x - window.minx);
}
}
cover = 0;
continue;
}
// draw span to next pixel - based on total amount of pixel cover
if (x < cur_mark->x)
{
alpha = polyspan.extract_alpha(cover, winding_style);
if (invert) alpha = 1 - alpha;
if (alpha >= .5)
{
if (simple_fill)
{
sp.move_to(p);
sp.put_hline(cur_mark->x - x);
p.move_to(sp);
}
else
{
p.put_hline(cur_mark->x - x);
}
}
/*
if (antialias)
{
if (alpha) p.put_hline(cur_mark->x - x, alpha);
}
else
{
if (alpha >= .5) p.put_hline(cur_mark->x - x);
}
*/
}
}
// fill the after stuff
if (invert)
{
if (simple_fill)
{
sp.move_to(p);
//fill the area at the end of the line
sp.put_hline(window.maxx - x);
//fill area at the beginning of the next line
sp.move_to(window.minx, y+1);
sp.put_block(window.maxy - y - 1, window.maxx - window.minx);
}
else
{
//fill the area at the end of the line
p.put_hline(window.maxx - x);
//fill area at the beginning of the next line
p.move_to(window.minx, y+1);
p.put_block(window.maxy - y - 1, window.maxx - window.minx);
}
}
}
bool
bmp_mptr::get_frame(synfig::Surface &surface, const synfig::RendDesc &/*renddesc*/, Time /*time*/, synfig::ProgressCallback *cb)
{
FileSystem::ReadStreamHandle stream = identifier.get_read_stream();
if(!stream)
{
if(cb)cb->error("bmp_mptr::GetFrame(): "+strprintf(_("Unable to open %s"),identifier.filename.c_str()));
else synfig::error("bmp_mptr::GetFrame(): "+strprintf(_("Unable to open %s"),identifier.filename.c_str()));
return false;
}
synfig::BITMAP::FILEHEADER fileheader;
synfig::BITMAP::INFOHEADER infoheader;
if (!stream->read_variable(fileheader.bfType)
|| fileheader.bfType[0] != 'B'
|| fileheader.bfType[1] != 'M')
{
if(cb)cb->error("bmp_mptr::GetFrame(): "+strprintf(_("%s is not in BMP format"),identifier.filename.c_str()));
else synfig::error("bmp_mptr::GetFrame(): "+strprintf(_("%s is not in BMP format"),identifier.filename.c_str()));
return false;
}
if(!stream->read_whole_block(&fileheader.bfSize, sizeof(synfig::BITMAP::FILEHEADER)-2))
{
String str("bmp_mptr::get_frame(): "+strprintf(_("Failure while reading BITMAP::FILEHEADER from %s"),identifier.filename.c_str()));
if(cb)cb->error(str);
else synfig::error(str);
return false;
}
if(!stream->read_whole_block(&infoheader, sizeof(synfig::BITMAP::INFOHEADER)))
{
String str("bmp_mptr::get_frame(): "+strprintf(_("Failure while reading BITMAP::INFOHEADER from %s"),identifier.filename.c_str()));
if(cb)cb->error(str);
else synfig::error(str);
return false;
}
int offset=little_endian(fileheader.bfOffsetBits);
if(offset!=sizeof(synfig::BITMAP::FILEHEADER)+sizeof(synfig::BITMAP::INFOHEADER))
{
String str("bmp_mptr::get_frame(): "+strprintf(_("Bad BITMAP::FILEHEADER in %s. (bfOffsetBits=%d, should be %d)"),identifier.filename.c_str(),offset,sizeof(synfig::BITMAP::FILEHEADER)+sizeof(synfig::BITMAP::INFOHEADER)));
if(cb)cb->error(str);
else synfig::error(str);
return false;
}
if(little_endian(infoheader.biSize)!=sizeof(synfig::BITMAP::INFOHEADER))
{
String str("bmp_mptr::get_frame(): "+strprintf(_("Bad BITMAP::INFOHEADER in %s. (biSize=%d, should be %d)"),identifier.filename.c_str(),little_endian(infoheader.biSize),sizeof(synfig::BITMAP::INFOHEADER)));
if(cb)cb->error(str);
else synfig::error(str);
return false;
}
int w,h,bit_count;
w=little_endian(infoheader.biWidth);
h=little_endian(infoheader.biHeight);
bit_count=little_endian_short(infoheader.biBitCount);
synfig::warning("w:%d\n",w);
synfig::warning("h:%d\n",h);
synfig::warning("bit_count:%d\n",bit_count);
if(little_endian(infoheader.biCompression))
{
if(cb)cb->error("bmp_mptr::GetFrame(): "+string(_("Reading compressed bitmaps is not supported")));
else synfig::error("bmp_mptr::GetFrame(): "+string(_("Reading compressed bitmaps is not supported")));
return false;
}
if(bit_count!=24 && bit_count!=32)
{
if(cb)cb->error("bmp_mptr::GetFrame(): "+strprintf(_("Unsupported bit depth (bit_count=%d, should be 24 or 32)"),bit_count));
else synfig::error("bmp_mptr::GetFrame(): "+strprintf(_("Unsupported bit depth (bit_count=%d, should be 24 or 32)"),bit_count));
return false;
}
int x;
int y;
surface.set_wh(w,h);
for(y=0;y<surface.get_h();y++)
for(x=0;x<surface.get_w();x++)
{
// float b=(float)(unsigned char)stream->getc()*(1.0/255.0);
// float g=(float)(unsigned char)stream->getc()*(1.0/255.0);
// float r=(float)(unsigned char)stream->getc()*(1.0/255.0);
float b=gamma().b_U8_to_F32((unsigned char)stream->get());
float g=gamma().g_U8_to_F32((unsigned char)stream->get());
float r=gamma().r_U8_to_F32((unsigned char)stream->get());
surface[h-y-1][x]=Color(
r,
g,
b,
1.0
);
if(bit_count==32)
stream->get();
}
return true;
}
static inline Color cubic(const synfig::Surface &surface, const Vector &pos)
{ return surface.cubic_sample(pos[0] - 0.5, pos[1] - 0.5); }
static inline Color nearest(const synfig::Surface &surface, const Vector &pos)
{
return surface[ std::max(std::min((int)floor(pos[1]), surface.get_h()-1), 0) ]
[ std::max(std::min((int)floor(pos[0]), surface.get_w()-1), 0) ];
}
bool
mplayer_mptr::get_frame(synfig::Surface &surface, const synfig::RendDesc &renddesc, synfig::Time time, synfig::ProgressCallback *callback)
{
#error This code has vulnerabilites: arbitrary shell command execution and tmpfile issues
int ret;
ret=system(
strprintf("/usr/local/bin/mencoder \"%s\" -ovc rawrgb -ss %f -endpos 0 -nosound -o /tmp/tmp.synfig.rgbdata | grep \"VIDEO\" > /tmp/tmp.synfig.size",
identifier.filename.c_str(),
time
).c_str()
);
/*
if(ret!=0)
{
cerr<<"mencoder execution failed."<<endl;
return false;
}
*/
FILE *sizefile=fopen("/tmp/tmp.synfig.size","rt");
FILE *rgbfile=fopen("/tmp/tmp.synfig.rgbdata","rb");
if(!rgbfile)
{
cerr<<"unable to open /tmp/tmp.synfig.rgbdata"<<endl;
return false;
}
if(!sizefile)
{
cerr<<"unable to open /tmp/tmp.synfig.size"<<endl;
return false;
}
int w=4,h=4,x,y;
char bleh[500];
fscanf(sizefile,"%499s %499s %dx%d",bleh,bleh,&w,&h);
cerr<<strprintf("w:%d, h:%d, time:%f",w,h,time)<<endl;
fseek(rgbfile,2047+3*8,SEEK_CUR);
surface.set_wh(w,h);
for(y=0;y<h;y++)
for(x=0;x<w;x++)
{
unsigned char
b=(unsigned char)fgetc(rgbfile),
g=(unsigned char)fgetc(rgbfile),
r=(unsigned char)fgetc(rgbfile);
surface[h-y-1][x]=Color(
(float)r/255.0,
(float)g/255.0,
(float)b/255.0,
1.0
);
}
fclose(rgbfile);
fclose(sizefile);
return true;
}
bool
png_mptr::get_frame(synfig::Surface &surface, const synfig::RendDesc &/*renddesc*/, Time, synfig::ProgressCallback */*cb*/)
{
/* Open the file pointer */
FileSystem::ReadStream::Handle stream = identifier.get_read_stream();
if (!stream)
{
//! \todo THROW SOMETHING
throw strprintf("Unable to physically open %s",identifier.filename.c_str());
return false;
}
/* Make sure we are dealing with a PNG format file */
png_byte header[PNG_CHECK_BYTES];
if (!stream->read_variable(header))
{
//! \todo THROW SOMETHING
throw strprintf("Cannot read header from \"%s\"",identifier.filename.c_str());
return false;
}
if (0 != png_sig_cmp(header, 0, PNG_CHECK_BYTES))
{
//! \todo THROW SOMETHING
throw strprintf("This (\"%s\") doesn't appear to be a PNG file",identifier.filename.c_str());
return false;
}
png_structp png_ptr = png_create_read_struct
(PNG_LIBPNG_VER_STRING, (png_voidp)this,
&png_mptr::png_out_error, &png_mptr::png_out_warning);
if (!png_ptr)
{
//! \todo THROW SOMETHING
throw String("error on importer construction, *WRITEME*3");
return false;
}
png_infop info_ptr = png_create_info_struct(png_ptr);
if (!info_ptr)
{
png_destroy_read_struct(&png_ptr,
(png_infopp)NULL, (png_infopp)NULL);
//! \todo THROW SOMETHING
throw String("error on importer construction, *WRITEME*4");
return false;
}
png_infop end_info = png_create_info_struct(png_ptr);
if (!end_info)
{
png_destroy_read_struct(&png_ptr, &info_ptr,
(png_infopp)NULL);
//! \todo THROW SOMETHING
throw String("error on importer construction, *WRITEME*4");
return false;
}
png_set_read_fn(png_ptr, stream.get(), read_callback);
png_set_sig_bytes(png_ptr,PNG_CHECK_BYTES);
png_read_info(png_ptr, info_ptr);
int bit_depth,color_type,interlace_type, compression_type,filter_method;
png_uint_32 width,height;
png_get_IHDR(png_ptr, info_ptr, &width, &height,
&bit_depth, &color_type, &interlace_type,
&compression_type, &filter_method);
if (bit_depth == 16)
png_set_strip_16(png_ptr);
if (bit_depth < 8)
png_set_packing(png_ptr);
double fgamma;
if (png_get_gAMA(png_ptr, info_ptr, &fgamma))
{
synfig::info("PNG: Image gamma is %f",fgamma);
png_set_gamma(png_ptr, gamma().get_gamma(), fgamma);
}
/*
if (setjmp(png_jmpbuf(png_ptr)))
{
synfig::error("Unable to setup longjump");
png_destroy_read_struct(&png_ptr, &info_ptr, &end_info);
fclose(file);
//! \todo THROW SOMETHING
throw String("error on importer construction, *WRITEME*5");
return;
}
*/
// man libpng tells me:
// You must use png_transforms and not call any
// png_set_transform() functions when you use png_read_png().
// but we used png_set_gamma(), which may be why we were seeing a crash at the end
// png_read_png(png_ptr, info_ptr, PNG_TRANSFORM_PACKING|PNG_TRANSFORM_STRIP_16, NULL);
png_read_update_info(png_ptr, info_ptr);
png_uint_32 rowbytes = png_get_rowbytes(png_ptr, info_ptr);
// allocate buffer to read image data into
png_bytep *row_pointers=new png_bytep[height];
png_byte *data = new png_byte[rowbytes*height];
for (png_uint_32 i = 0; i < height; i++)
row_pointers[i] = &(data[rowbytes*i]);
png_read_image(png_ptr, row_pointers);
png_uint_32 x, y;
surface.set_wh(width,height);
switch(color_type)
{
case PNG_COLOR_TYPE_RGB:
for(y=0; y<height; y++)
for(x=0; x<width; x++)
{
float r=gamma().r_U8_to_F32((unsigned char)row_pointers[y][x*3+0]);
float g=gamma().g_U8_to_F32((unsigned char)row_pointers[y][x*3+1]);
float b=gamma().b_U8_to_F32((unsigned char)row_pointers[y][x*3+2]);
surface[y][x]=Color(
r,
g,
b,
1.0
);
/*
surface[y][x]=Color(
(float)(unsigned char)row_pointers[y][x*3+0]*(1.0/255.0),
(float)(unsigned char)row_pointers[y][x*3+1]*(1.0/255.0),
(float)(unsigned char)row_pointers[y][x*3+2]*(1.0/255.0),
1.0
);
*/
}
break;
case PNG_COLOR_TYPE_RGB_ALPHA:
for(y=0; y<height; y++)
for(x=0; x<width; x++)
{
float r=gamma().r_U8_to_F32((unsigned char)row_pointers[y][x*4+0]);
float g=gamma().g_U8_to_F32((unsigned char)row_pointers[y][x*4+1]);
float b=gamma().b_U8_to_F32((unsigned char)row_pointers[y][x*4+2]);
surface[y][x]=Color(
r,
g,
b,
(float)(unsigned char)row_pointers[y][x*4+3]*(1.0/255.0)
);
/*
surface[y][x]=Color(
(float)(unsigned char)row_pointers[y][x*4+0]*(1.0/255.0),
(float)(unsigned char)row_pointers[y][x*4+1]*(1.0/255.0),
(float)(unsigned char)row_pointers[y][x*4+2]*(1.0/255.0),
(float)(unsigned char)row_pointers[y][x*4+3]*(1.0/255.0)
);
*/
}
break;
case PNG_COLOR_TYPE_GRAY:
for(y=0; y<height; y++)
for(x=0; x<width; x++)
{
float gray=gamma().g_U8_to_F32((unsigned char)row_pointers[y][x]);
//float gray=(float)(unsigned char)row_pointers[y][x]*(1.0/255.0);
surface[y][x]=Color(
gray,
gray,
gray,
1.0
);
}
break;
case PNG_COLOR_TYPE_GRAY_ALPHA:
for(y=0; y<height; y++)
for(x=0; x<width; x++)
{
float gray=gamma().g_U8_to_F32((unsigned char)row_pointers[y][x*2]);
// float gray=(float)(unsigned char)row_pointers[y][x*2]*(1.0/255.0);
surface[y][x]=Color(
gray,
gray,
gray,
(float)(unsigned char)row_pointers[y][x*2+1]*(1.0/255.0)
);
}
break;
case PNG_COLOR_TYPE_PALETTE:
{
png_colorp palette;
int num_palette;
png_get_PLTE(png_ptr, info_ptr, &palette, &num_palette);
png_bytep trans_alpha = NULL;
int num_trans = 0;
bool has_alpha = (png_get_tRNS(png_ptr, info_ptr, &trans_alpha, &num_trans,
NULL) & PNG_INFO_tRNS);
for(y=0; y<height; y++)
for(x=0; x<width; x++)
{
float r=gamma().r_U8_to_F32((unsigned char)palette[row_pointers[y][x]].red);
float g=gamma().g_U8_to_F32((unsigned char)palette[row_pointers[y][x]].green);
float b=gamma().b_U8_to_F32((unsigned char)palette[row_pointers[y][x]].blue);
float a=1.0;
if (has_alpha && num_trans > 0 && trans_alpha != NULL)
{
a = row_pointers[y][x] < num_trans ?
(trans_alpha[row_pointers[y][x]]*(1.0/255.0)) : 1.0;
}
surface[y][x]=Color(
r,
g,
b,
a
);
}
break;
}
default:
png_read_end(png_ptr, end_info);
png_destroy_read_struct(&png_ptr, &info_ptr, &end_info);
synfig::error("png_mptr: error: Unsupported color type");
//! \todo THROW SOMETHING
throw String("error on importer construction, *WRITEME*6");
return false;
}
png_read_end(png_ptr, end_info);
png_destroy_read_struct(&png_ptr, &info_ptr, &end_info);
return true;
}
