GraphicComp* ImportCmd::PGM_Image (const char* filename) {
GraphicComp* comp = nil;
FILE* file = fopen(filename, "r");
if (file != nil) {
char line[1000];
do {
fgets(line, 1000, file);
} while (strcmp(line, "gsave\n") != 0);
fgets(line, 1000, file); // translate
fgets(line, 1000, file); // scale
fgets(line, 1000, file); // sizes
int w, h, d;
sscanf(line, "%d %d %d", &w, &h, &d);
fgets(line, 1000, file); // [ ... ]
fgets(line, 1000, file); // { ... }
fgets(line, 1000, file); // image
Raster* raster = new Raster(w, h);
for (int row = h - 1; row >= 0; --row) {
for (int column = 0; column < w; ++column) {
int byte = gethex(file);
float g = float(byte) / 0xff;
raster->poke(column, row, g, g, g, 1.0);
}
}
raster->flush();
comp = new RasterComp(new RasterRect(raster), filename);
}
fclose(file);
return comp;
}
GraphicComp* ImportCmd::TIFF_Image (const char* filename) {
GraphicComp* comp = nil;
Raster* raster = TIFFRaster::load(filename);
if (raster != nil) {
raster->ref();
raster->flush();
comp = new RasterComp(new RasterRect(raster), filename);
}
return comp;
}
GraphicComp* ImportCmd::PPM_Image (const char* filename) {
GraphicComp* comp = nil;
FILE* file = fopen(filename, "r");
boolean compressed;
file = CheckCompression(file, filename, compressed);
if (file != nil) {
char line[1000];
do {
fgets(line, 1000, file);
} while (strcmp(line, "gsave\n") != 0);
fgets(line, 1000, file); // translate
fgets(line, 1000, file); // scale
fgets(line, 1000, file); // scale
fgets(line, 1000, file); // sizes
int w, h, d;
sscanf(line, "%d %d %d", &w, &h, &d);
fgets(line, 1000, file); // [ ... ]
fgets(line, 1000, file); // { ... }
fgets(line, 1000, file); // false 3
fgets(line, 1000, file); // colorimage
Raster* raster = new Raster(w, h);
for (int row = h - 1; row >= 0; --row) {
for (int column = 0; column < w; ++column) {
int red = gethex(file);
int green = gethex(file);
int blue = gethex(file);
raster->poke(
column, row,
float(red)/0xff, float(green)/0xff, float(blue)/0xff, 1.0
);
}
}
raster->flush();
comp = new RasterComp(new RasterRect(raster), filename);
}
if (compressed) {
pclose(file);
} else {
fclose(file);
}
return comp;
}
Raster::Raster(const Raster& raster) {
RasterRep* r = new RasterRep;
rep_ = r;
raster.flush();
RasterRep& rr = *(raster.rep());
r->display_ = rr.display_;
r->modified_ = true;
r->width_ = rr.width_;
r->height_ = rr.height_;
r->left_ = rr.left_;
r->bottom_ = rr.bottom_;
r->right_ = rr.right_;
r->top_ = rr.top_;
r->pwidth_ = rr.pwidth_;
r->pheight_ = rr.pheight_;
r->shared_memory_ = false;
DisplayRep* dr = r->display_->rep();
XDisplay* dpy = dr->display_;
r->pixmap_ = XCreatePixmap(
dpy, dr->root_, r->pwidth_, r->pheight_, dr->default_visual_->depth()
);
r->gc_ = XCreateGC(dpy, r->pixmap_, 0, nil);
XCopyArea(
dpy, rr.pixmap_, r->pixmap_, r->gc_,
0, 0, r->pwidth_, r->pheight_, 0, 0
);
#ifdef XSHM
init_shared_memory();
#endif
if (!r->shared_memory_) {
r->image_ = XGetImage(
dpy, r->pixmap_, 0, 0, r->pwidth_, r->pheight_, AllPlanes, ZPixmap
);
}
}
