shithub: pdffs

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render pages to images

--- a/main.c

+++ b/main.c

@@ -18,21 +18,25 @@

 }

 static int

-dumppage(Object *page)

+dumppage(Object *page, int text)

 {

 	int ret;

 	Page p;

 	pageinit(&p, page);

 	ret = pagerender(&p);

-	if(ret)

-		if(p.buf.sz != 0)

-			fprint(1, "%s", (char*)p.buf.b);

+	if(ret){

+		if(text){

+			if(p.buf.sz != 0)

+				fprint(1, "%s", (char*)p.buf.b);

+		}else

+			writememimage(1, p.image);

+	}

 	pagefree(&p);

 	return ret;

 }

 static int

-dumppages(Object *pages)

+dumppages(Object *pages, int text)

 {

 	Object *page, *kids, *type;

 	int i, count;

@@ -44,13 +48,14 @@

 		type = dictget(page, "Type");

 		// MUST be a name.

 		if(strcmp(type->name, "Pages") == 0){

-			if(!dumppages(page))

+			if(!dumppages(page, text))

 				return 0;

 		}

 		else if(strcmp(type->name, "Page") == 0){

-			if(!dumppage(page))

+			if(!dumppage(page, text))

 				return 0;

-			print("\n");

+			if(text)

+				print("\n");

 		}

 		else

 			sysfatal("Unexpected page node type '%s'", type->name);

@@ -72,6 +77,8 @@

 	inflateinit();

 	memimageinit();

 	threadwaitchan();

+	if(memimageinit() != 0)

+		sysfatal("failed to initialize graphics: %r");

 	ARGBEGIN{

 	default:

@@ -103,12 +110,16 @@

 			Sclose(s);

 			v = nil;

 			break;

+		}else if(argv[i][0] == '!' && argv[i][1] == 0 && v->type == Odict && strcmp(dictget(v, "Type")->name, "Page") == 0){

+			dumppage(v, 0);

+			nodump = 1;

+			break;

 		}else if(argv[i][0] == '"' && argv[i][1] == 0 && v->type == Odict && strcmp(dictget(v, "Type")->name, "Page") == 0){

-			dumppage(v);

+			dumppage(v, 1);

 			nodump = 1;

 			break;

 		}else if(argv[i][0] == '"' && argv[i][1] == 0 && v->type == Odict && strcmp(dictget(v, "Type")->name, "Pages") == 0){

-			dumppages(v);

+			dumppages(v, 1);

 			nodump = 1;

 			break;

 		}else if(argv[i][0] == '*' && argv[i][1] == 0 && v->type == Odict){

@@ -136,6 +147,7 @@

 		fprint(2, "%r\n");

 	else if(v != nil)

 		print("%O\n", v);

+

 /*

 	if((v = dictget(pdf->info, "Creator")) != nil)

 		fprint(2, "creator: %s\n", v->str);

--- a/op.c

+++ b/op.c

@@ -1,5 +1,7 @@

 #include <u.h>

 #include <libc.h>

+#include <draw.h>

+#include <memdraw.h>

 #include "pdf.h"

 enum {

@@ -618,8 +620,14 @@

 				return 0;

 		}

 	}

-	if(!writepatched(p, c) || !tmove(p, tx, 0, 0))

-		return 0;

+	usize oend = p->buf.sz;

+	if(!writepatched(p, c)){

+		werrstr("tchar: failed to write character: %r");

+ 		return 0;

+	}

+	if(p->buf.b != nil)

+		memimagestring(p->image, Pt(Trm[4], 1100 - Trm[5]), memblack, Pt(0,0), getmemdefont(), (char*)p->buf.b + oend);

+	tmove(p, tx, 0, 0);

 	p->TS.x = Trm[4] + tx;

 	p->TS.y = Trm[5];

 	return 1;

@@ -1325,6 +1333,12 @@

 	}

 	p->GSactive = p->GS;

 	gsinit(p, p->GS);

+	if((p->image = allocmemimage(Rect(0,0,850,1100), strtochan("r8g8b8"))) == nil){

+		werrstr("unable to allocate image: %r");

+		pagegsclean(p);

+		return 0;

+	}

+	memfillcolor(p->image, 0xFFFFFFFF);

 	content = dictget(p->obj, "Contents");

 	if(content->type == Oarray){

 		for(i = 0; i < arraylen(content); i += 1)

--- a/pdf.h

+++ b/pdf.h

@@ -151,6 +151,7 @@

 	Object *obj;

 	Object *stack;

 	Buffer buf;

+	void *image;

 	/* The graphical state stack. GSactive is always a shortcut for the top of the stack, GS[nGS - 1] */

 	struct{

 		GS *GS;