add cairo

1 files changed, 311 insertions, 0 deletions

diff --git a/libs/cairo-1.16.0/test/create-for-stream.c b/libs/cairo-1.16.0/test/create-for-stream.c
new file mode 100644
index 0000000..af1632f
--- /dev/null
+++ b/libs/cairo-1.16.0/test/create-for-stream.c
@@ -0,0 +1,311 @@
+/*
+ * Copyright © 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: Kristian Høgsberg <krh@redhat.com>
+ */
+
+#include "cairo-test.h"
+
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+
+#if CAIRO_HAS_PS_SURFACE
+#include <cairo-ps.h>
+#endif
+
+#if CAIRO_HAS_PDF_SURFACE
+#include <cairo-pdf.h>
+#endif
+
+#if CAIRO_HAS_SVG_SURFACE
+#include <cairo-svg.h>
+#endif
+
+#include "cairo-test.h"
+
+/* The main test suite doesn't test the *_create_for_stream
+ * constructors for the PDF, PS and SVG surface, so we do that here.
+ * We draw to an in-memory buffer using the stream constructor and
+ * compare the output to the contents of a file written using the
+ * file constructor.
+ */
+
+#define MAX_OUTPUT_SIZE 4096
+
+#define WIDTH_IN_INCHES  3
+#define HEIGHT_IN_INCHES 3
+#define WIDTH_IN_POINTS  (WIDTH_IN_INCHES  * 72.0)
+#define HEIGHT_IN_POINTS (HEIGHT_IN_INCHES * 72.0)
+
+#define BASENAME "create-for-stream.out"
+
+static cairo_test_status_t
+draw (cairo_t *cr, int width, int height)
+{
+    /* Just draw a rectangle. */
+
+    cairo_rectangle (cr, width / 10., height /10.,
+		     width - 2 * width / 10.,
+		     height - 2 * height /10.);
+    cairo_fill (cr);
+
+    cairo_show_page (cr);
+
+    return CAIRO_TEST_SUCCESS;
+}
+
+static void
+draw_to (cairo_surface_t *surface)
+{
+    cairo_t *cr;
+
+    cr = cairo_create (surface);
+
+    draw (cr, WIDTH_IN_POINTS, HEIGHT_IN_POINTS);
+
+    cairo_destroy (cr);
+}
+
+typedef struct _write_closure {
+    const cairo_test_context_t *ctx;
+    char buffer[MAX_OUTPUT_SIZE];
+    size_t index;
+    cairo_test_status_t status;
+} write_closure_t;
+
+static cairo_status_t
+bad_write (void		*closure,
+	   const unsigned char	*data,
+	   unsigned int	 length)
+{
+    return CAIRO_STATUS_WRITE_ERROR;
+}
+
+static cairo_status_t
+test_write (void		*closure,
+	    const unsigned char	*data,
+	    unsigned int	 length)
+{
+    write_closure_t *wc = closure;
+
+    if (wc->index + length >= sizeof wc->buffer) {
+	cairo_test_log (wc->ctx, "Error: out of bounds in write callback\n");
+	wc->status = CAIRO_TEST_FAILURE;
+	return CAIRO_STATUS_SUCCESS;
+    }
+
+    memcpy (&wc->buffer[wc->index], data, length);
+    wc->index += length;
+
+    return CAIRO_STATUS_SUCCESS;
+}
+
+
+typedef cairo_surface_t *
+(*file_constructor_t) (const char	       *filename,
+		       double			width_in_points,
+		       double			height_in_points);
+
+typedef cairo_surface_t *
+(*stream_constructor_t) (cairo_write_func_t	write_func,
+			 void		       *closure,
+			 double			width_in_points,
+			 double			height_in_points);
+
+static cairo_test_status_t
+test_surface (const cairo_test_context_t *ctx,
+	      const char                 *backend,
+	      const char		 *filename,
+	      file_constructor_t	 file_constructor,
+	      stream_constructor_t	 stream_constructor)
+{
+    cairo_surface_t *surface;
+    write_closure_t wc;
+    char file_contents[MAX_OUTPUT_SIZE];
+    cairo_status_t status;
+    FILE *fp;
+
+    /* test propagation of user errors */
+    surface = stream_constructor (bad_write, &wc,
+				  WIDTH_IN_POINTS, HEIGHT_IN_POINTS);
+
+    status = cairo_surface_status (surface);
+    if (status) {
+	cairo_test_log (ctx,
+			"%s: Failed to create surface for stream.\n",
+			backend);
+	return CAIRO_TEST_FAILURE;
+    }
+
+    draw_to (surface);
+
+    cairo_surface_finish (surface);
+    status = cairo_surface_status (surface);
+    cairo_surface_destroy (surface);
+
+    if (status != CAIRO_STATUS_WRITE_ERROR) {
+	cairo_test_log (ctx,
+			"%s: Error: expected \"write error\", but received \"%s\".\n",
+			backend, cairo_status_to_string (status));
+	return CAIRO_TEST_FAILURE;
+    }
+
+    /* construct the real surface */
+    wc.ctx = ctx;
+    wc.status = CAIRO_TEST_SUCCESS;
+    wc.index = 0;
+
+    surface = stream_constructor (test_write, &wc,
+				  WIDTH_IN_POINTS, HEIGHT_IN_POINTS);
+
+    status = cairo_surface_status (surface);
+    if (status) {
+	cairo_test_log (ctx,
+			"%s: Failed to create surface for stream.\n", backend);
+	return CAIRO_TEST_FAILURE;
+    }
+
+    draw_to (surface);
+
+    cairo_surface_destroy (surface);
+
+    if (wc.status != CAIRO_TEST_SUCCESS) {
+	/* Error already reported. */
+	return wc.status;
+    }
+
+    surface = file_constructor (filename,
+				WIDTH_IN_POINTS, HEIGHT_IN_POINTS);
+
+    status = cairo_surface_status (surface);
+    if (status) {
+	cairo_test_log (ctx, "%s: Failed to create surface for file %s: %s.\n",
+			backend, filename, cairo_status_to_string (status));
+	return CAIRO_TEST_FAILURE;
+    }
+
+    draw_to (surface);
+
+    cairo_surface_destroy (surface);
+
+    fp = fopen (filename, "r");
+    if (fp == NULL) {
+	cairo_test_log (ctx, "%s: Failed to open %s for reading: %s.\n",
+			backend, filename, strerror (errno));
+	return CAIRO_TEST_FAILURE;
+    }
+
+    if (fread (file_contents, 1, wc.index, fp) != wc.index) {
+	cairo_test_log (ctx, "%s: Failed to read %s: %s.\n",
+			backend, filename, strerror (errno));
+	fclose (fp);
+	return CAIRO_TEST_FAILURE;
+    }
+
+    if (memcmp (file_contents, wc.buffer, wc.index) != 0) {
+	cairo_test_log (ctx, "%s: Stream based output differ from file output for %s.\n",
+			backend, filename);
+	fclose (fp);
+	return CAIRO_TEST_FAILURE;
+    }
+
+    fclose (fp);
+
+    return CAIRO_TEST_SUCCESS;
+}
+
+static cairo_test_status_t
+preamble (cairo_test_context_t *ctx)
+{
+    cairo_test_status_t status = CAIRO_TEST_UNTESTED;
+    cairo_test_status_t test_status;
+    char *filename;
+    const char *path = cairo_test_mkdir (CAIRO_TEST_OUTPUT_DIR) ? CAIRO_TEST_OUTPUT_DIR : ".";
+
+#if CAIRO_HAS_PS_SURFACE
+    if (cairo_test_is_target_enabled (ctx, "ps2") ||
+	cairo_test_is_target_enabled (ctx, "ps3"))
+    {
+	if (status == CAIRO_TEST_UNTESTED)
+	    status = CAIRO_TEST_SUCCESS;
+
+	xasprintf (&filename, "%s/%s", path, BASENAME ".ps");
+	test_status = test_surface (ctx, "ps", filename,
+				    cairo_ps_surface_create,
+				    cairo_ps_surface_create_for_stream);
+	cairo_test_log (ctx, "TEST: %s TARGET: %s RESULT: %s\n",
+			ctx->test->name, "ps",
+			test_status ? "FAIL" : "PASS");
+	if (status == CAIRO_TEST_SUCCESS)
+	    status = test_status;
+	free (filename);
+    }
+#endif
+
+#if CAIRO_HAS_PDF_SURFACE
+    if (cairo_test_is_target_enabled (ctx, "pdf")) {
+	if (status == CAIRO_TEST_UNTESTED)
+	    status = CAIRO_TEST_SUCCESS;
+
+	xasprintf (&filename, "%s/%s", path, BASENAME ".pdf");
+	test_status = test_surface (ctx, "pdf", filename,
+				    cairo_pdf_surface_create,
+				    cairo_pdf_surface_create_for_stream);
+	cairo_test_log (ctx, "TEST: %s TARGET: %s RESULT: %s\n",
+			ctx->test->name, "pdf",
+			test_status ? "FAIL" : "PASS");
+	if (status == CAIRO_TEST_SUCCESS)
+	    status = test_status;
+	free (filename);
+    }
+#endif
+
+#if CAIRO_HAS_SVG_SURFACE
+    if (cairo_test_is_target_enabled (ctx, "svg11") ||
+	cairo_test_is_target_enabled (ctx, "svg12"))
+    {
+	if (status == CAIRO_TEST_UNTESTED)
+	    status = CAIRO_TEST_SUCCESS;
+
+	xasprintf (&filename, "%s/%s", path, BASENAME ".svg");
+	test_status = test_surface (ctx, "svg", filename,
+				    cairo_svg_surface_create,
+				    cairo_svg_surface_create_for_stream);
+	cairo_test_log (ctx, "TEST: %s TARGET: %s RESULT: %s\n",
+			ctx->test->name, "svg",
+			test_status ? "FAIL" : "PASS");
+	if (status == CAIRO_TEST_SUCCESS)
+	    status = test_status;
+	free (filename);
+    }
+#endif
+
+    return status;
+}
+
+CAIRO_TEST (create_for_stream,
+	    "Checks creating vector surfaces with user defined I/O\n",
+	    "stream", /* keywords */
+	    "target=vector", /* requirements */
+	    0, 0,
+	    preamble, NULL)