Initial revision

1 files changed, 141 insertions, 0 deletions

diff --git a/pdf/xpdf/PBMOutputDev.cc b/pdf/xpdf/PBMOutputDev.cc
new file mode 100644
index 0000000..e21c0ef
--- /dev/null
+++ b/pdf/xpdf/PBMOutputDev.cc
@@ -0,0 +1,141 @@
+//========================================================================
+//
+// PBMOutputDev.cc
+//
+// Copyright 1998 Derek B. Noonburg
+//
+//========================================================================
+
+#ifdef __GNUC__
+#pragma implementation
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stddef.h>
+#include <string.h>
+#include "gmem.h"
+#include "GString.h"
+#include "Object.h"
+#include "Stream.h"
+#include "GfxState.h"
+#include "GfxFont.h"
+#include "Error.h"
+#include "Params.h"
+#include "PBMOutputDev.h"
+
+//------------------------------------------------------------------------
+
+PBMOutputDev *PBMOutputDev::makePBMOutputDev(char *displayName,
+					     char *fileRoot1) {
+  Display *display;
+  Pixmap pixmap;
+  Window dummyWin;
+  int screen;
+  int invert;
+  unsigned long black, white;
+
+  if (!(display = XOpenDisplay(displayName))) {
+    fprintf(stderr, "Couldn't open display '%s'\n", displayName);
+    exit(1);
+  }
+  screen = DefaultScreen(display);
+
+  black = BlackPixel(display, screen);
+  white = WhitePixel(display, screen);
+  if ((black & 1) == (white & 1)) {
+    fprintf(stderr, "Weird black/white pixel colors\n");
+    XCloseDisplay(display);
+    return NULL;
+  } 
+  invert = (white & 1) == 1 ? 0xff : 0x00;
+
+  dummyWin = XCreateSimpleWindow(display, RootWindow(display, screen),
+				 0, 0, 1, 1, 0,
+				 black, white);
+  pixmap = XCreatePixmap(display, dummyWin, 1, 1, 1);
+  return new PBMOutputDev(display, screen, pixmap, dummyWin,
+			  invert, fileRoot1);
+}
+
+PBMOutputDev::PBMOutputDev(Display *display1, int screen1,
+			   Pixmap pixmap1, Window dummyWin1,
+			   int invert1, char *fileRoot1):
+  XOutputDev(display1, pixmap1, 1,
+	     DefaultColormap(display1, screen1),
+	     WhitePixel(display1, DefaultScreen(display1)))
+{
+  display = display1;
+  screen = screen1;
+  pixmap = pixmap1;
+  dummyWin = dummyWin1;
+  invert = invert1;
+  fileRoot = fileRoot1;
+  fileName = (char *)gmalloc(strlen(fileRoot) + 20);
+}
+
+PBMOutputDev::~PBMOutputDev() {
+  XFreePixmap(display, pixmap);
+  XDestroyWindow(display, dummyWin);
+  XCloseDisplay(display);
+  gfree(fileName);
+}
+
+void PBMOutputDev::startPage(int pageNum, GfxState *state) {
+
+  curPage = pageNum;
+  width = (int)(state->getPageWidth() + 0.5);
+  height = (int)(state->getPageHeight() + 0.5);
+  XFreePixmap(display, pixmap);
+  pixmap = XCreatePixmap(display, dummyWin, width, height, 1);
+  setPixmap(pixmap, width, height);
+  XOutputDev::startPage(pageNum, state);
+}
+
+void PBMOutputDev::endPage() {
+  XImage *image;
+  FILE *f;
+  int p;
+  int x, y, i;
+
+  image = XCreateImage(display, DefaultVisual(display, screen),
+		       1, ZPixmap, 0, NULL, width, height, 8, 0);
+  image->data = (char *)gmalloc(height * image->bytes_per_line);
+  XGetSubImage(display, pixmap, 0, 0, width, height, 1, ZPixmap,
+	       image, 0, 0);
+
+  sprintf(fileName, "%s-%06d.pbm", fileRoot, curPage);
+  if (!(f = fopen(fileName, "wb"))) {
+    fprintf(stderr, "Couldn't open output file '%s'\n", fileName);
+    goto err;
+  }
+  fprintf(f, "P4\n");
+  fprintf(f, "%d %d\n", width, height);
+
+  for (y = 0; y < height; ++y) {
+    for (x = 0; x+8 <= width; x += 8) {
+      p = 0;
+      for (i = 0; i < 8; ++i)
+	p = (p << 1) + (XGetPixel(image, x+i, y) & 1);
+      p ^= invert;
+      fputc((char)p, f);
+    }
+    if (width & 7) {
+      p = 0;
+      for (i = 0; i < (width & 7); ++i)
+	p = (p << 1) + (XGetPixel(image, x+i, y) & 1);
+      p <<= 8 - (width & 7);
+      p ^= invert;
+      fputc((char)p, f);
+    }
+  }
+
+  fclose(f);
+
+ err:
+  gfree(image->data);
+  image->data = NULL;
+  XDestroyImage(image);
+
+  XOutputDev::endPage();
+}