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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)