Grcov report

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/*

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 * Copyright © 2008 Chris Wilson

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 * Permission to use, copy, modify, distribute, and sell this software

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 * and its documentation for any purpose is hereby granted without

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 * fee, provided that the above copyright notice appear in all copies

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 * and that both that copyright notice and this permission notice

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 * appear in supporting documentation, and that the name of

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 * Chris Wilson not be used in advertising or publicity pertaining to

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 * distribution of the software without specific, written prior

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 * permission. Chris Wilson makes no representations about the

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 * suitability of this software for any purpose.  It is provided "as

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 * is" without express or implied warranty.

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 * CHRIS WILSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS

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 * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND

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 * FITNESS, IN NO EVENT SHALL CHRIS WILSON BE LIABLE FOR ANY SPECIAL,

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 * INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER

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 * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION

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 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR

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 * IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

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 * Author: Chris Wilson <chris@chris-wilson.co.uk>

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*/

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#include "cairo-test.h"

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#include <assert.h>

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/* Test the idempotency of write_png->read_png */

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#define RGB_MASK 0x00ffffff

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#define BASENAME "png.out"

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static cairo_bool_t

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2

image_surface_equals (cairo_surface_t *A, cairo_surface_t *B)

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4

    if (cairo_image_surface_get_format (A) !=

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	cairo_image_surface_get_format (B))

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	return 0;

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4

    if (cairo_image_surface_get_width (A) !=

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	cairo_image_surface_get_width (B))

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	return 0;

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4

    if (cairo_image_surface_get_height (A) !=

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	cairo_image_surface_get_height (B))

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	return 0;

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2

    return 1;

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static const char *

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format_to_string (cairo_format_t format)

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    switch (format) {

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    case CAIRO_FORMAT_A1:     return "a1";

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    case CAIRO_FORMAT_A8:     return "a8";

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    case CAIRO_FORMAT_RGB16_565:  return "rgb16";

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    case CAIRO_FORMAT_RGB24:  return "rgb24";

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    case CAIRO_FORMAT_RGB30:  return "rgb30";

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    case CAIRO_FORMAT_ARGB32: return "argb32";

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    case CAIRO_FORMAT_RGB96F: return "rgb96f";

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    case CAIRO_FORMAT_RGBA128F: return "rgba128f";

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    case CAIRO_FORMAT_INVALID:

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    default: return "???";

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static void

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print_surface (const cairo_test_context_t *ctx, cairo_surface_t *surface)

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    cairo_test_log (ctx,

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		    "%s (%dx%d)\n",

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		    format_to_string (cairo_image_surface_get_format (surface)),

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		    cairo_image_surface_get_width (surface),

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		    cairo_image_surface_get_height (surface));

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static cairo_test_status_t

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preamble (cairo_test_context_t *ctx)

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    cairo_surface_t *surface0, *surface1;

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    cairo_status_t status;

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    uint32_t argb32 = 0xdeadbede;

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    char *filename;

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    const char *path = cairo_test_mkdir (CAIRO_TEST_OUTPUT_DIR) ? CAIRO_TEST_OUTPUT_DIR : ".";

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    xasprintf (&filename, "%s/%s.png", path, BASENAME);

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    surface0 = cairo_image_surface_create_for_data ((unsigned char *) &argb32,

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						    CAIRO_FORMAT_ARGB32,

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						    1, 1, 4);

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    status = cairo_surface_write_to_png (surface0, filename);

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    if (status) {

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	cairo_test_log (ctx, "Error writing '%s': %s\n",

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			filename, cairo_status_to_string (status));

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	cairo_surface_destroy (surface0);

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	free (filename);

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	return cairo_test_status_from_status (ctx, status);

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    surface1 = cairo_image_surface_create_from_png (filename);

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    status = cairo_surface_status (surface1);

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1

    if (status) {

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	cairo_test_log (ctx, "Error reading '%s': %s\n",

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			filename, cairo_status_to_string (status));

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	cairo_surface_destroy (surface1);

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	cairo_surface_destroy (surface0);

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	free (filename);

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	return cairo_test_status_from_status (ctx, status);

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1

    if (! image_surface_equals (surface0, surface1)) {

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	cairo_test_log (ctx, "Error surface mismatch.\n");

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	cairo_test_log (ctx, "to png: "); print_surface (ctx, surface0);

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	cairo_test_log (ctx, "from png: "); print_surface (ctx, surface1);

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	cairo_surface_destroy (surface0);

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	cairo_surface_destroy (surface1);

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	free (filename);

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	return CAIRO_TEST_FAILURE;

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    assert (*(uint32_t *) cairo_image_surface_get_data (surface1) == argb32);

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    cairo_surface_destroy (surface0);

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    cairo_surface_destroy (surface1);

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    surface0 = cairo_image_surface_create_for_data ((unsigned char *) &argb32,

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						    CAIRO_FORMAT_RGB24,

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						    1, 1, 4);

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    status = cairo_surface_write_to_png (surface0, filename);

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    if (status) {

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	cairo_test_log (ctx, "Error writing '%s': %s\n",

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			filename, cairo_status_to_string (status));

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	cairo_surface_destroy (surface0);

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	return cairo_test_status_from_status (ctx, status);

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    surface1 = cairo_image_surface_create_from_png (filename);

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    status = cairo_surface_status (surface1);

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    if (status) {

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	cairo_test_log (ctx, "Error reading '%s': %s\n",

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			filename, cairo_status_to_string (status));

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	free (filename);

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	cairo_surface_destroy (surface1);

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	cairo_surface_destroy (surface0);

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	return cairo_test_status_from_status (ctx, status);

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    free (filename);

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    if (! image_surface_equals (surface0, surface1)) {

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	cairo_test_log (ctx, "Error surface mismatch.\n");

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	cairo_test_log (ctx, "to png: "); print_surface (ctx, surface0);

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	cairo_test_log (ctx, "from png: "); print_surface (ctx, surface1);

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	cairo_surface_destroy (surface0);

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	cairo_surface_destroy (surface1);

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	return CAIRO_TEST_FAILURE;

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    assert ((*(uint32_t *) cairo_image_surface_get_data (surface1) & RGB_MASK)

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	    == (argb32 & RGB_MASK));

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    cairo_surface_destroy (surface0);

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    cairo_surface_destroy (surface1);

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    return CAIRO_TEST_SUCCESS;

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CAIRO_TEST (png,

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	    "Check that the png export/import is idempotent.",

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	    "png, api", /* keywords */

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	    NULL, /* requirements */

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	    0, 0,

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	    preamble, NULL)