add cairo

1 files changed, 279 insertions, 0 deletions

diff --git a/libs/cairo-1.16.0/boilerplate/cairo-boilerplate-pdf.c b/libs/cairo-1.16.0/boilerplate/cairo-boilerplate-pdf.c
new file mode 100644
index 0000000..c6c6b63
--- /dev/null
+++ b/libs/cairo-1.16.0/boilerplate/cairo-boilerplate-pdf.c
@@ -0,0 +1,279 @@
+/* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */
+/*
+ * Copyright © 2004,2006 Red Hat, Inc.
+ *
+ * Permission to use, copy, modify, distribute, and sell this software
+ * and its documentation for any purpose is hereby granted without
+ * fee, provided that the above copyright notice appear in all copies
+ * and that both that copyright notice and this permission notice
+ * appear in supporting documentation, and that the name of
+ * Red Hat, Inc. not be used in advertising or publicity pertaining to
+ * distribution of the software without specific, written prior
+ * permission. Red Hat, Inc. makes no representations about the
+ * suitability of this software for any purpose.  It is provided "as
+ * is" without express or implied warranty.
+ *
+ * RED HAT, INC. DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS
+ * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+ * FITNESS, IN NO EVENT SHALL RED HAT, INC. BE LIABLE FOR ANY SPECIAL,
+ * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
+ * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
+ * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR
+ * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ * Author: Carl D. Worth <cworth@cworth.org>
+ */
+
+#include "cairo-boilerplate-private.h"
+
+#if CAIRO_CAN_TEST_PDF_SURFACE
+
+#include <cairo-pdf.h>
+#include <cairo-pdf-surface-private.h>
+#include <cairo-paginated-surface-private.h>
+
+#if HAVE_SIGNAL_H
+#include <signal.h>
+#endif
+
+#if HAVE_SYS_WAIT_H
+#include <sys/wait.h>
+#endif
+
+#if ! CAIRO_HAS_RECORDING_SURFACE
+#define CAIRO_SURFACE_TYPE_RECORDING CAIRO_INTERNAL_SURFACE_TYPE_RECORDING
+#endif
+
+static const cairo_user_data_key_t pdf_closure_key;
+
+typedef struct _pdf_target_closure
+{
+    char		*filename;
+    int 		 width;
+    int 		 height;
+    cairo_surface_t	*target;
+} pdf_target_closure_t;
+
+static cairo_surface_t *
+_cairo_boilerplate_pdf_create_surface (const char		 *name,
+				       cairo_content_t		  content,
+				       double			  width,
+				       double			  height,
+				       double			  max_width,
+				       double			  max_height,
+				       cairo_boilerplate_mode_t   mode,
+				       void			**closure)
+{
+    pdf_target_closure_t *ptc;
+    cairo_surface_t *surface;
+    cairo_status_t status;
+
+    /* Sanitize back to a real cairo_content_t value. */
+    if (content == CAIRO_TEST_CONTENT_COLOR_ALPHA_FLATTENED)
+	content = CAIRO_CONTENT_COLOR_ALPHA;
+
+    *closure = ptc = xmalloc (sizeof (pdf_target_closure_t));
+
+    ptc->width = ceil (width);
+    ptc->height = ceil (height);
+
+    xasprintf (&ptc->filename, "%s.out.pdf", name);
+    xunlink (ptc->filename);
+
+    surface = cairo_pdf_surface_create (ptc->filename, width, height);
+    if (cairo_surface_status (surface))
+	goto CLEANUP_FILENAME;
+
+    cairo_pdf_surface_set_metadata (surface, CAIRO_PDF_METADATA_CREATE_DATE, NULL);
+    cairo_surface_set_fallback_resolution (surface, 72., 72.);
+
+    if (content == CAIRO_CONTENT_COLOR) {
+	ptc->target = surface;
+	surface = cairo_surface_create_similar (ptc->target,
+						CAIRO_CONTENT_COLOR,
+						ptc->width, ptc->height);
+	if (cairo_surface_status (surface))
+	    goto CLEANUP_TARGET;
+    } else {
+	ptc->target = NULL;
+    }
+
+    status = cairo_surface_set_user_data (surface, &pdf_closure_key, ptc, NULL);
+    if (status == CAIRO_STATUS_SUCCESS)
+	return surface;
+
+    cairo_surface_destroy (surface);
+    surface = cairo_boilerplate_surface_create_in_error (status);
+
+  CLEANUP_TARGET:
+    cairo_surface_destroy (ptc->target);
+  CLEANUP_FILENAME:
+    free (ptc->filename);
+    free (ptc);
+    return surface;
+}
+
+static cairo_status_t
+_cairo_boilerplate_pdf_finish_surface (cairo_surface_t *surface)
+{
+    pdf_target_closure_t *ptc = cairo_surface_get_user_data (surface,
+							     &pdf_closure_key);
+    cairo_status_t status;
+
+    /* Both surface and ptc->target were originally created at the
+     * same dimensions. We want a 1:1 copy here, so we first clear any
+     * device offset on surface.
+     *
+     * In a more realistic use case of device offsets, the target of
+     * this copying would be of a different size than the source, and
+     * the offset would be desirable during the copy operation. */
+    cairo_surface_set_device_offset (surface, 0, 0);
+
+    if (ptc->target) {
+	cairo_t *cr;
+	cr = cairo_create (ptc->target);
+	cairo_set_source_surface (cr, surface, 0, 0);
+	cairo_paint (cr);
+	cairo_show_page (cr);
+	status = cairo_status (cr);
+	cairo_destroy (cr);
+
+	if (status)
+	    return status;
+
+	cairo_surface_finish (surface);
+	status = cairo_surface_status (surface);
+	if (status)
+	    return status;
+
+	surface = ptc->target;
+    }
+
+    cairo_surface_finish (surface);
+    status = cairo_surface_status (surface);
+    if (status)
+	return status;
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_status_t
+_cairo_boilerplate_pdf_surface_write_to_png (cairo_surface_t *surface,
+					     const char      *filename)
+{
+    pdf_target_closure_t *ptc = cairo_surface_get_user_data (surface, &pdf_closure_key);
+    char    command[4096];
+    int exitstatus;
+
+    sprintf (command, "./pdf2png %s %s 1",
+	     ptc->filename, filename);
+
+    exitstatus = system (command);
+#if _XOPEN_SOURCE && HAVE_SIGNAL_H
+    if (WIFSIGNALED (exitstatus))
+	raise (WTERMSIG (exitstatus));
+#endif
+    if (exitstatus)
+	return CAIRO_STATUS_WRITE_ERROR;
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+static cairo_surface_t *
+_cairo_boilerplate_pdf_convert_to_image (cairo_surface_t *surface,
+					 int		  page)
+{
+    pdf_target_closure_t *ptc = cairo_surface_get_user_data (surface,
+							     &pdf_closure_key);
+
+    return cairo_boilerplate_convert_to_image (ptc->filename, page+1);
+}
+
+static cairo_surface_t *
+_cairo_boilerplate_pdf_get_image_surface (cairo_surface_t *surface,
+					  int		   page,
+					  int		   width,
+					  int		   height)
+{
+    cairo_surface_t *image;
+
+    image = _cairo_boilerplate_pdf_convert_to_image (surface, page);
+    cairo_surface_set_device_offset (image,
+				     cairo_image_surface_get_width (image) - width,
+				     cairo_image_surface_get_height (image) - height);
+    surface = _cairo_boilerplate_get_image_surface (image, 0, width, height);
+    cairo_surface_destroy (image);
+
+    return surface;
+}
+
+static void
+_cairo_boilerplate_pdf_cleanup (void *closure)
+{
+    pdf_target_closure_t *ptc = closure;
+    if (ptc->target) {
+	cairo_surface_finish (ptc->target);
+	cairo_surface_destroy (ptc->target);
+    }
+    free (ptc->filename);
+    free (ptc);
+}
+
+static void
+_cairo_boilerplate_pdf_force_fallbacks (cairo_surface_t *abstract_surface,
+				       double		 x_pixels_per_inch,
+				       double		 y_pixels_per_inch)
+{
+    pdf_target_closure_t *ptc = cairo_surface_get_user_data (abstract_surface,
+							     &pdf_closure_key);
+
+    cairo_paginated_surface_t *paginated;
+    cairo_pdf_surface_t *surface;
+
+    if (ptc->target)
+	abstract_surface = ptc->target;
+
+    paginated = (cairo_paginated_surface_t*) abstract_surface;
+    surface = (cairo_pdf_surface_t*) paginated->target;
+    surface->force_fallbacks = TRUE;
+    cairo_surface_set_fallback_resolution (&paginated->base,
+					   x_pixels_per_inch,
+					   y_pixels_per_inch);
+}
+
+static const cairo_boilerplate_target_t targets[] = {
+    {
+	"pdf", "pdf", ".pdf", NULL,
+	CAIRO_SURFACE_TYPE_PDF,
+	CAIRO_TEST_CONTENT_COLOR_ALPHA_FLATTENED, 0,
+	"cairo_pdf_surface_create",
+	_cairo_boilerplate_pdf_create_surface,
+	cairo_surface_create_similar,
+	_cairo_boilerplate_pdf_force_fallbacks,
+	_cairo_boilerplate_pdf_finish_surface,
+	_cairo_boilerplate_pdf_get_image_surface,
+	_cairo_boilerplate_pdf_surface_write_to_png,
+	_cairo_boilerplate_pdf_cleanup,
+	NULL, NULL, FALSE, TRUE, TRUE
+    },
+    {
+	"pdf", "pdf", ".pdf", NULL,
+	CAIRO_SURFACE_TYPE_RECORDING, CAIRO_CONTENT_COLOR, 0,
+	"cairo_pdf_surface_create",
+	_cairo_boilerplate_pdf_create_surface,
+	cairo_surface_create_similar,
+	_cairo_boilerplate_pdf_force_fallbacks,
+	_cairo_boilerplate_pdf_finish_surface,
+	_cairo_boilerplate_pdf_get_image_surface,
+	_cairo_boilerplate_pdf_surface_write_to_png,
+	_cairo_boilerplate_pdf_cleanup,
+	NULL, NULL, FALSE, TRUE, TRUE
+    },
+};
+CAIRO_BOILERPLATE (pdf, targets)
+
+#else
+
+CAIRO_NO_BOILERPLATE (pdf)
+
+#endif