Grcov report - a1-mask.c

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/*

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 * Copyright © Jeff Muizelaar

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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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 * Red Hat, Inc. 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. Red Hat, Inc. 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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 * JEFF MUIZELAAR 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 RED HAT, INC. 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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 * Authors: Jeff Muizelaar <jeff@infidigm.net>

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 *	    Carl Worth <cworth@cworth.org>

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

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*/

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#include "cairo-test.h"

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#define MASK_WIDTH 10

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#define MASK_HEIGHT 8

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#ifdef WORDS_BIGENDIAN

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#define MASK 0x28, 0x55

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#else

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#define MASK 0x14, 0xAA

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#endif

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static unsigned char mask[(MASK_WIDTH + 7) / 8 * MASK_HEIGHT] = {

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    MASK,

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    MASK,

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    MASK,

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    MASK,

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    MASK,

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    MASK,

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    MASK,

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    MASK,

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};

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static cairo_test_status_t

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320

check_status (const cairo_test_context_t *ctx,

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	      cairo_status_t status,

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	      cairo_status_t expected)

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    if (status == expected)

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320

	return CAIRO_TEST_SUCCESS;

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    cairo_test_log (ctx,

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		    "Error: Expected status value %d (%s), received %d (%s)\n",

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		    expected,

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		    cairo_status_to_string (expected),

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		    status,

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		    cairo_status_to_string (status));

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    return CAIRO_TEST_FAILURE;

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static cairo_test_status_t

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160

test_surface_with_width_and_stride (const cairo_test_context_t *ctx,

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				    int width, int stride,

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				    cairo_status_t expected)

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    cairo_test_status_t status;

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    cairo_surface_t *surface;

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    cairo_t *cr;

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    int len;

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    unsigned char *data;

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    cairo_test_log (ctx,

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		    "Creating surface with width %d and stride %d\n",

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		    width, stride);

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    len = stride;

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    if (len < 0)

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	len = -len;

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    data = xmalloc (len);

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    surface = cairo_image_surface_create_for_data (data, CAIRO_FORMAT_A1,

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						   width, 1, stride);

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    cr = cairo_create (surface);

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    cairo_paint (cr);

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    status = check_status (ctx, cairo_surface_status (surface), expected);

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    if (status)

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	goto BAIL;

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    status = check_status (ctx, cairo_status (cr), expected);

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    if (status)

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	goto BAIL;

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  BAIL:

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    cairo_destroy (cr);

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    cairo_surface_destroy (surface);

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    free (data);

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    return status;

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static cairo_test_status_t

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3

draw (cairo_t *cr, int dst_width, int dst_height)

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    unsigned char *mask_aligned;

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    cairo_surface_t *surface;

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3

    surface = cairo_image_surface_create (CAIRO_FORMAT_A1,

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					  MASK_WIDTH,

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					  MASK_HEIGHT);

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3

    mask_aligned = cairo_image_surface_get_data (surface);

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3

    if (mask_aligned != NULL) {

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3

	int stride = cairo_image_surface_get_stride (surface), row;

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3

	const unsigned char *src = mask;

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3

	unsigned char *dst = mask_aligned;

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	for (row = 0; row < MASK_HEIGHT; row++) {

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	    memcpy (dst, src, (MASK_WIDTH + 7) / 8);

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	    src += (MASK_WIDTH + 7) / 8;

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	    dst += stride;

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3

    cairo_surface_mark_dirty (surface);

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    /* Paint background blue */

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3

    cairo_set_source_rgb (cr, 0, 0, 1); /* blue */

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    cairo_paint (cr);

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    /* Then paint red through our mask */

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    cairo_set_source_rgb (cr, 1, 0, 0); /* red */

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3

    cairo_mask_surface (cr, surface, 0, 0);

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3

    cairo_surface_destroy (surface);

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    return CAIRO_TEST_SUCCESS;

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static cairo_test_status_t

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1

preamble (cairo_test_context_t *ctx)

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    cairo_test_status_t status = CAIRO_TEST_SUCCESS;

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    int test_width;

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    /* first check the API strictness */

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    for (test_width = 0; test_width < 40; test_width++) {

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	int test_stride = (test_width + 7) / 8;

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	int stride = cairo_format_stride_for_width (CAIRO_FORMAT_A1,

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						    test_width);

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	cairo_status_t expected;

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	/* First create a surface using the width as the stride,

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	 * (most of these should fail).

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*/

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	expected = (stride == test_stride) ?

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	    CAIRO_STATUS_SUCCESS : CAIRO_STATUS_INVALID_STRIDE;

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	status = test_surface_with_width_and_stride (ctx,

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						     test_width,

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						     test_stride,

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						     expected);

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	if (status)

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	    return status;

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168

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	status = test_surface_with_width_and_stride (ctx,

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						     test_width,

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						     -test_stride,

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						     expected);

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	if (status)

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	    return status;

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	/* Then create a surface using the correct stride,

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	 * (should always succeed).

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*/

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	status = test_surface_with_width_and_stride (ctx,

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						     test_width,

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						     stride,

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						     CAIRO_STATUS_SUCCESS);

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	if (status)

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	    return status;

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	status = test_surface_with_width_and_stride (ctx,

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						     test_width,

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						     -stride,

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						     CAIRO_STATUS_SUCCESS);

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	if (status)

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	    return status;

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    return status;

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CAIRO_TEST (a1_mask,

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            "test masks of CAIRO_FORMAT_A1",

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	    "alpha, mask", /* keywords */

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	    NULL, /* requirements */

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	    MASK_WIDTH, MASK_HEIGHT,

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	    preamble, draw)