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#include <cogl/cogl.h>
#include <string.h>
#include <stdarg.h>
#include "test-utils.h"
/* This is testing CoglBitmask which is an internal data structure
within Cogl. Cogl doesn't export the symbols for this data type so
we just directly include the source instead */
/* we undef these to avoid them being redefined by config.h when
* including cogl-bitmask.c */
#undef COGL_ENABLE_EXPERIMENTAL_2_0_API
#undef COGL_ENABLE_EXPERIMENTAL_API
#include <cogl/cogl-bitmask.h>
#include <cogl/cogl-bitmask.c>
#define _COGL_IN_TEST_BITMASK
#include <cogl/cogl-util.c>
typedef struct
{
int n_bits;
int *bits;
} CheckData;
static gboolean
check_bit (int bit_num, void *user_data)
{
CheckData *data = user_data;
int i;
for (i = 0; i < data->n_bits; i++)
if (data->bits[i] == bit_num)
{
data->bits[i] = -1;
return TRUE;
}
g_assert_not_reached ();
return TRUE;
}
static void
verify_bits (const CoglBitmask *bitmask,
...)
{
CheckData data;
va_list ap, ap_copy;
int i;
va_start (ap, bitmask);
G_VA_COPY (ap_copy, ap);
for (data.n_bits = 0; va_arg (ap, int) != -1; data.n_bits++);
data.bits = alloca (data.n_bits * (sizeof (int)));
G_VA_COPY (ap, ap_copy);
for (i = 0; i < data.n_bits; i++)
data.bits[i] = va_arg (ap, int);
_cogl_bitmask_foreach (bitmask, check_bit, &data);
for (i = 0; i < data.n_bits; i++)
g_assert_cmpint (data.bits[i], ==, -1);
g_assert_cmpint (_cogl_bitmask_popcount (bitmask), ==, data.n_bits);
for (i = 0; i < 1024; i++)
{
int upto_popcount = 0;
int j;
G_VA_COPY (ap, ap_copy);
for (j = 0; j < data.n_bits; j++)
if (va_arg (ap, int) < i)
upto_popcount++;
g_assert_cmpint (_cogl_bitmask_popcount_upto (bitmask, i),
==,
upto_popcount);
G_VA_COPY (ap, ap_copy);
for (j = 0; j < data.n_bits; j++)
if (va_arg (ap, int) == i)
break;
g_assert_cmpint (_cogl_bitmask_get (bitmask, i), ==, (j < data.n_bits));
}
}
void
test_bitmask (void)
{
CoglBitmask bitmask;
CoglBitmask other_bitmask;
/* A dummy bit to make it use arrays sometimes */
int dummy_bit;
int i;
for (dummy_bit = -1; dummy_bit < 256; dummy_bit += 40)
{
_cogl_bitmask_init (&bitmask);
_cogl_bitmask_init (&other_bitmask);
if (dummy_bit != -1)
_cogl_bitmask_set (&bitmask, dummy_bit, TRUE);
verify_bits (&bitmask, dummy_bit, -1);
_cogl_bitmask_set (&bitmask, 1, TRUE);
_cogl_bitmask_set (&bitmask, 4, TRUE);
_cogl_bitmask_set (&bitmask, 5, TRUE);
verify_bits (&bitmask, 1, 4, 5, dummy_bit, -1);
_cogl_bitmask_set (&bitmask, 4, FALSE);
verify_bits (&bitmask, 1, 5, dummy_bit, -1);
_cogl_bitmask_clear_all (&bitmask);
verify_bits (&bitmask, -1);
if (dummy_bit != -1)
_cogl_bitmask_set (&bitmask, dummy_bit, TRUE);
verify_bits (&bitmask, dummy_bit, -1);
_cogl_bitmask_set (&bitmask, 1, TRUE);
_cogl_bitmask_set (&bitmask, 4, TRUE);
_cogl_bitmask_set (&bitmask, 5, TRUE);
_cogl_bitmask_set (&other_bitmask, 5, TRUE);
_cogl_bitmask_set (&other_bitmask, 6, TRUE);
_cogl_bitmask_set_bits (&bitmask, &other_bitmask);
verify_bits (&bitmask, 1, 4, 5, 6, dummy_bit, -1);
verify_bits (&other_bitmask, 5, 6, -1);
_cogl_bitmask_set (&bitmask, 6, FALSE);
verify_bits (&bitmask, 1, 4, 5, dummy_bit, -1);
_cogl_bitmask_xor_bits (&bitmask, &other_bitmask);
verify_bits (&bitmask, 1, 4, 6, dummy_bit, -1);
verify_bits (&other_bitmask, 5, 6, -1);
_cogl_bitmask_set_range (&bitmask, 5, TRUE);
verify_bits (&bitmask, 0, 1, 2, 3, 4, 6, dummy_bit, -1);
_cogl_bitmask_set_range (&bitmask, 4, FALSE);
verify_bits (&bitmask, 4, 6, dummy_bit, -1);
_cogl_bitmask_destroy (&other_bitmask);
_cogl_bitmask_destroy (&bitmask);
}
/* Extra tests for really long bitmasks */
_cogl_bitmask_init (&bitmask);
_cogl_bitmask_set_range (&bitmask, 400, TRUE);
_cogl_bitmask_init (&other_bitmask);
_cogl_bitmask_set (&other_bitmask, 5, TRUE);
_cogl_bitmask_xor_bits (&bitmask, &other_bitmask);
for (i = 0; i < 1024; i++)
g_assert_cmpint (_cogl_bitmask_get (&bitmask, i),
==,
(i == 5 ? FALSE :
i < 400 ? TRUE :
FALSE));
_cogl_bitmask_set_range (&other_bitmask, 500, TRUE);
_cogl_bitmask_set_bits (&bitmask, &other_bitmask);
for (i = 0; i < 1024; i++)
g_assert_cmpint (_cogl_bitmask_get (&bitmask, i), ==, (i < 500));
if (cogl_test_verbose ())
g_print ("OK\n");
}
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