Exemple #1
0
static void drawbmp(fz_context *ctx, fz_document *doc, fz_page *page, fz_display_list *list, int pagenum, fz_cookie *cookie)
{
	float zoom;
	fz_matrix ctm;
	fz_irect ibounds;
	fz_rect bounds, tbounds;

	int w, h;
	fz_device *dev;
	HDC dc, dc_main;
	RECT rc;
	HBRUSH bg_brush;
	HBITMAP hbmp;
	BITMAPINFO bmi = { 0 };
	int bmp_data_len;
	unsigned char *bmp_data;

	fz_bound_page(doc, page, &bounds);
	zoom = resolution / 72;
	fz_pre_scale(fz_rotate(&ctm, rotation), zoom, zoom);
	tbounds = bounds;
	fz_round_rect(&ibounds, fz_transform_rect(&tbounds, &ctm));

	w = width;
	h = height;
	if (res_specified)
	{
		fz_round_rect(&ibounds, &tbounds);
		if (w && ibounds.x1 - ibounds.x0 <= w)
			w = 0;
		if (h && ibounds.y1 - ibounds.y0 <= h)
			h = 0;
	}
	if (w || h)
	{
		float scalex = w / (tbounds.x1 - tbounds.x0);
		float scaley = h / (tbounds.y1 - tbounds.y0);
		fz_matrix scale_mat;
		if (w == 0)
			scalex = fit ? 1.0f : scaley;
		if (h == 0)
			scaley = fit ? 1.0f : scalex;
		if (!fit)
			scalex = scaley = min(scalex, scaley);
		fz_concat(&ctm, &ctm, fz_scale(&scale_mat, scalex, scaley));
		tbounds = bounds;
		fz_transform_rect(&tbounds, &ctm);
	}
	fz_round_rect(&ibounds, &tbounds);
	fz_rect_from_irect(&tbounds, &ibounds);

	w = ibounds.x1 - ibounds.x0;
	h = ibounds.y1 - ibounds.y0;

	dc_main = GetDC(NULL);
	dc = CreateCompatibleDC(dc_main);
	hbmp = CreateCompatibleBitmap(dc_main, w, h);
	DeleteObject(SelectObject(dc, hbmp));

	SetRect(&rc, 0, 0, w, h);
	bg_brush = CreateSolidBrush(RGB(0xFF,0xFF,0xFF));
	FillRect(dc, &rc, bg_brush);
	DeleteObject(bg_brush);

	dev = fz_new_gdiplus_device(ctx, dc, &tbounds);
	if (list)
		fz_run_display_list(list, dev, &ctm, &tbounds, cookie);
	else
		fz_run_page(doc, page, dev, &ctm, cookie);
	fz_free_device(dev);

	bmi.bmiHeader.biSize = sizeof(bmi.bmiHeader);
	bmi.bmiHeader.biWidth = w;
	bmi.bmiHeader.biHeight = output_format == OUT_TGA ? -h : h;
	bmi.bmiHeader.biPlanes = 1;
	bmi.bmiHeader.biBitCount = output_format == OUT_TGA ? 32 : 24;
	bmi.bmiHeader.biCompression = BI_RGB;

	bmp_data_len = output_format == OUT_TGA ? w * h * 4 : ((w * 3 + 3) / 4) * 4 * h;
	bmp_data = fz_malloc(ctx, bmp_data_len);
	if (!GetDIBits(dc, hbmp, 0, h, bmp_data, &bmi, DIB_RGB_COLORS))
		fz_throw(ctx, FZ_ERROR_GENERIC, "cannot draw page %d in PDF file '%s'", pagenum, filename);

	DeleteDC(dc);
	ReleaseDC(NULL, dc_main);
	DeleteObject(hbmp);

	if (output)
	{
		char buf[512];
		FILE *f;

		sprintf(buf, output, pagenum);
		f = fopen(buf, "wb");
		if (!f)
			fz_throw(ctx, FZ_ERROR_GENERIC, "could not create raster file '%s'", buf);

		if (output_format == OUT_TGA)
		{
			fz_pixmap *pix = fz_new_pixmap_with_data(ctx, fz_device_bgr(ctx), w, h, bmp_data);
			fz_write_tga(ctx, pix, buf, 0);
			fz_drop_pixmap(ctx, pix);
		}
		else
		{
			BITMAPFILEHEADER bmpfh = { 0 };
			static const int one = 1;
			if (!*(char *)&one)
				fz_throw(ctx, FZ_ERROR_GENERIC, "rendering to BMP is not supported on big-endian architectures");

			bmpfh.bfType = MAKEWORD('B', 'M');
			bmpfh.bfOffBits = sizeof(bmpfh) + sizeof(bmi);
			bmpfh.bfSize = bmpfh.bfOffBits + bmp_data_len;

			fwrite(&bmpfh, sizeof(bmpfh), 1, f);
			fwrite(&bmi, sizeof(bmi), 1, f);
			fwrite(bmp_data, 1, bmp_data_len, f);
		}

		fclose(f);
	}

	if (showmd5)
	{
		fz_pixmap *pix = fz_new_pixmap_with_data(ctx, fz_device_bgr(ctx), bmp_data_len / 4 / h, h, bmp_data);
		unsigned char digest[16];
		int i;

		fz_md5_pixmap(pix, digest);
		printf(" ");
		for (i = 0; i < 16; i++)
			printf("%02x", digest[i]);

		fz_drop_pixmap(ctx, pix);
	}

	fz_free(ctx, bmp_data);
}
Exemple #2
0
static void drawpage(fz_context *ctx, fz_document *doc, int pagenum)
{
	fz_page *page;
	fz_display_list *list = NULL;
	fz_device *dev = NULL;
	int start;
	fz_cookie cookie = { 0 };
	int needshot = 0;

	fz_var(list);
	fz_var(dev);

	if (showtime)
	{
		start = gettime();
	}

	fz_try(ctx)
	{
		page = fz_load_page(doc, pagenum - 1);
	}
	fz_catch(ctx)
	{
		fz_throw(ctx, "cannot load page %d in file '%s'", pagenum, filename);
	}

	if (mujstest_file)
	{
		fz_interactive *inter = fz_interact(doc);
		fz_widget *widget = NULL;

		if (inter)
			widget = fz_first_widget(inter, page);

		if (widget)
		{
			fprintf(mujstest_file, "GOTO %d\n", pagenum);
			needshot = 1;
		}
		for (;widget; widget = fz_next_widget(inter, widget))
		{
			fz_rect rect = fz_widget_bbox(widget);
			int w = (rect.x1-rect.x0);
			int h = (rect.y1-rect.y0);
			int len;
			int type = fz_widget_get_type(widget);

			++mujstest_count;
			switch (type)
			{
			default:
				fprintf(mujstest_file, "%% UNKNOWN %0.2f %0.2f %0.2f %0.2f\n", rect.x0, rect.y0, rect.x1, rect.y1);
				break;
			case FZ_WIDGET_TYPE_PUSHBUTTON:
				fprintf(mujstest_file, "%% PUSHBUTTON %0.2f %0.2f %0.2f %0.2f\n", rect.x0, rect.y0, rect.x1, rect.y1);
				break;
			case FZ_WIDGET_TYPE_CHECKBOX:
				fprintf(mujstest_file, "%% CHECKBOX %0.2f %0.2f %0.2f %0.2f\n", rect.x0, rect.y0, rect.x1, rect.y1);
				break;
			case FZ_WIDGET_TYPE_RADIOBUTTON:
				fprintf(mujstest_file, "%% RADIOBUTTON %0.2f %0.2f %0.2f %0.2f\n", rect.x0, rect.y0, rect.x1, rect.y1);
				break;
			case FZ_WIDGET_TYPE_TEXT:
			{
				int maxlen = fz_text_widget_max_len(inter, widget);
				int texttype = fz_text_widget_content_type(inter, widget);

				/* If height is low, assume a single row, and base
				 * the width off that. */
				if (h < 10)
				{
					w = (w+h-1) / (h ? h : 1);
					h = 1;
				}
				/* Otherwise, if width is low, work off height */
				else if (w < 10)
				{
					h = (w+h-1) / (w ? w : 1);
					w = 1;
				}
				else
				{
					w = (w+9)/10;
					h = (h+9)/10;
				}
				len = w*h;
				if (len < 2)
					len = 2;
				if (len > maxlen)
					len = maxlen;
				fprintf(mujstest_file, "%% TEXT %0.2f %0.2f %0.2f %0.2f\n", rect.x0, rect.y0, rect.x1, rect.y1);
				switch (texttype)
				{
				default:
				case FZ_WIDGET_CONTENT_UNRESTRAINED:
					fprintf(mujstest_file, "TEXT %d ", mujstest_count);
					escape_string(mujstest_file, len-3, lorem);
					fprintf(mujstest_file, "\n");
					break;
				case FZ_WIDGET_CONTENT_NUMBER:
					fprintf(mujstest_file, "TEXT %d\n", mujstest_count);
					break;
				case FZ_WIDGET_CONTENT_SPECIAL:
					fprintf(mujstest_file, "TEXT %lld\n", 46702919800LL + mujstest_count);
					break;
				case FZ_WIDGET_CONTENT_DATE:
					fprintf(mujstest_file, "TEXT Jun %d 1979\n", 1 + ((13 + mujstest_count) % 30));
					break;
				case FZ_WIDGET_CONTENT_TIME:
					++mujstest_count;
					fprintf(mujstest_file, "TEXT %02d:%02d\n", ((mujstest_count/60) % 24), mujstest_count % 60);
					break;
				}
				break;
			}
			case FZ_WIDGET_TYPE_LISTBOX:
				fprintf(mujstest_file, "%% LISTBOX %0.2f %0.2f %0.2f %0.2f\n", rect.x0, rect.y0, rect.x1, rect.y1);
				break;
			case FZ_WIDGET_TYPE_COMBOBOX:
				fprintf(mujstest_file, "%% COMBOBOX %0.2f %0.2f %0.2f %0.2f\n", rect.x0, rect.y0, rect.x1, rect.y1);
				break;
			}
			fprintf(mujstest_file, "CLICK %0.2f %0.2f\n", (rect.x0+rect.x1)/2, (rect.y0+rect.y1)/2);
		}
	}

	if (uselist)
	{
		fz_try(ctx)
		{
			list = fz_new_display_list(ctx);
			dev = fz_new_list_device(ctx, list);
			fz_run_page(doc, page, dev, fz_identity, &cookie);
		}
		fz_always(ctx)
		{
			fz_free_device(dev);
			dev = NULL;
		}
		fz_catch(ctx)
		{
			fz_free_display_list(ctx, list);
			fz_free_page(doc, page);
			fz_throw(ctx, "cannot draw page %d in file '%s'", pagenum, filename);
		}
	}

	if (showxml)
	{
		fz_try(ctx)
		{
			dev = fz_new_trace_device(ctx);
			fz_printf(out, "<page number=\"%d\">\n", pagenum);
			if (list)
				fz_run_display_list(list, dev, fz_identity, fz_infinite_rect, &cookie);
			else
				fz_run_page(doc, page, dev, fz_identity, &cookie);
			fz_printf(out, "</page>\n");
		}
		fz_always(ctx)
		{
			fz_free_device(dev);
			dev = NULL;
		}
		fz_catch(ctx)
		{
			fz_free_display_list(ctx, list);
			fz_free_page(doc, page);
			fz_rethrow(ctx);
		}
	}

	if (showtext)
	{
		fz_text_page *text = NULL;

		fz_var(text);

		fz_try(ctx)
		{
			text = fz_new_text_page(ctx, fz_bound_page(doc, page));
			dev = fz_new_text_device(ctx, sheet, text);
			if (list)
				fz_run_display_list(list, dev, fz_identity, fz_infinite_rect, &cookie);
			else
				fz_run_page(doc, page, dev, fz_identity, &cookie);
			fz_free_device(dev);
			dev = NULL;
			if (showtext == TEXT_XML)
			{
				fz_print_text_page_xml(ctx, out, text);
			}
			else if (showtext == TEXT_HTML)
			{
				fz_print_text_page_html(ctx, out, text);
			}
			else if (showtext == TEXT_PLAIN)
			{
				fz_print_text_page(ctx, out, text);
				fz_printf(out, "\f\n");
			}
		}
		fz_always(ctx)
		{
			fz_free_device(dev);
			dev = NULL;
			fz_free_text_page(ctx, text);
		}
		fz_catch(ctx)
		{
			fz_free_display_list(ctx, list);
			fz_free_page(doc, page);
			fz_rethrow(ctx);
		}
	}

	if (showmd5 || showtime)
		printf("page %s %d", filename, pagenum);

#ifdef GDI_PLUS_BMP_RENDERER
	// hack: use -G0 to "enable GDI+" when saving as TGA
	if (output && (strstr(output, ".bmp") || strstr(output, ".tga") && !gamma_value))
		drawbmp(ctx, doc, page, list, pagenum);
	else
#endif
	if (output || showmd5 || showtime)
	{
		float zoom;
		fz_matrix ctm;
		fz_rect bounds, tbounds;
		fz_bbox ibounds;
		fz_pixmap *pix = NULL;
		int w, h;

		fz_var(pix);

		bounds = fz_bound_page(doc, page);
		zoom = resolution / 72;
		ctm = fz_scale(zoom, zoom);
		ctm = fz_concat(ctm, fz_rotate(rotation));
		tbounds = fz_transform_rect(ctm, bounds);
		ibounds = fz_round_rect(tbounds); /* convert to integers */

		/* Make local copies of our width/height */
		w = width;
		h = height;

		/* If a resolution is specified, check to see whether w/h are
		 * exceeded; if not, unset them. */
		if (res_specified)
		{
			int t;
			t = ibounds.x1 - ibounds.x0;
			if (w && t <= w)
				w = 0;
			t = ibounds.y1 - ibounds.y0;
			if (h && t <= h)
				h = 0;
		}

		/* Now w or h will be 0 unless they need to be enforced. */
		if (w || h)
		{
			float scalex = w / (tbounds.x1 - tbounds.x0);
			float scaley = h / (tbounds.y1 - tbounds.y0);

			if (fit)
			{
				if (w == 0)
					scalex = 1.0f;
				if (h == 0)
					scaley = 1.0f;
			}
			else
			{
				if (w == 0)
					scalex = scaley;
				if (h == 0)
					scaley = scalex;
			}
			if (!fit)
			{
				if (scalex > scaley)
					scalex = scaley;
				else
					scaley = scalex;
			}
			ctm = fz_concat(ctm, fz_scale(scalex, scaley));
			tbounds = fz_transform_rect(ctm, bounds);
		}
		ibounds = fz_round_rect(tbounds);

		/* TODO: banded rendering and multi-page ppm */

		fz_try(ctx)
		{
			pix = fz_new_pixmap_with_bbox(ctx, colorspace, ibounds);

			if (savealpha)
				fz_clear_pixmap(ctx, pix);
			else
				fz_clear_pixmap_with_value(ctx, pix, 255);

			dev = fz_new_draw_device(ctx, pix);
			if (list)
				fz_run_display_list(list, dev, ctm, tbounds, &cookie);
			else
				fz_run_page(doc, page, dev, ctm, &cookie);
			fz_free_device(dev);
			dev = NULL;

			if (invert)
				fz_invert_pixmap(ctx, pix);
			if (gamma_value != 1)
				fz_gamma_pixmap(ctx, pix, gamma_value);

			if (savealpha)
				fz_unmultiply_pixmap(ctx, pix);

			if (output)
			{
				char buf[512];
				sprintf(buf, output, pagenum);
				if (strstr(output, ".pgm") || strstr(output, ".ppm") || strstr(output, ".pnm"))
					fz_write_pnm(ctx, pix, buf);
				else if (strstr(output, ".pam"))
					fz_write_pam(ctx, pix, buf, savealpha);
				else if (strstr(output, ".png"))
					fz_write_png(ctx, pix, buf, savealpha);
				else if (strstr(output, ".pbm")) {
					fz_bitmap *bit = fz_halftone_pixmap(ctx, pix, NULL);
					fz_write_pbm(ctx, bit, buf);
					fz_drop_bitmap(ctx, bit);
				}
				/* SumatraPDF: support TGA as output format */
				else if (strstr(output, ".tga"))
					fz_write_tga(ctx, pix, buf, savealpha);
			}

			if (showmd5)
			{
				unsigned char digest[16];
				int i;

				fz_md5_pixmap(pix, digest);
				printf(" ");
				for (i = 0; i < 16; i++)
					printf("%02x", digest[i]);
			}
		}
		fz_always(ctx)
		{
			fz_free_device(dev);
			dev = NULL;
			fz_drop_pixmap(ctx, pix);
		}
		fz_catch(ctx)
		{
			fz_free_display_list(ctx, list);
			fz_free_page(doc, page);
			fz_rethrow(ctx);
		}
	}