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-rw-r--r--libs/cairo-1.16.0/test/create-for-stream.c311
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
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+++ b/libs/cairo-1.16.0/test/create-for-stream.c
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+/*
+ * 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)
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