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/* See LICENSE file for copyright and license details. */
#include "common.h"
#ifndef TEST
RASTER *
rtgrpblib_create_raster(size_t width, size_t height)
{
RASTER *raster;
size_t size;
if (!width || !height) {
errno = EINVAL;
return NULL;
}
if (width > (SIZE_MAX - offsetof(RASTER, cells)) / sizeof(*raster->cells) / height)
goto enomem;
size = width * height;
raster = calloc(1, offsetof(RASTER, cells) + size * sizeof(*raster->cells));
if (!raster) {
enomem:
errno = ENOMEM;
return NULL;
}
raster->width = width;
raster->height = height;
raster->size = size;
raster->draftness = DEFAULT_DRAFTNESS;
return raster;
}
#else
int
main(void)
{
RASTER *raster;
size_t i, n;
errno = 0;
ASSERT(!rtgrpblib_create_raster(0, 1));
ASSERT(errno == EINVAL);
errno = 0;
ASSERT(!rtgrpblib_create_raster(1, 0));
ASSERT(errno == EINVAL);
errno = 0;
ASSERT(!rtgrpblib_create_raster(0, 0));
ASSERT(errno == EINVAL);
errno = 0;
ASSERT(!rtgrpblib_create_raster(SIZE_MAX - offsetof(RASTER, cells) + 1, 1));
ASSERT(errno == ENOMEM);
errno = 0;
ASSERT(!rtgrpblib_create_raster(1, SIZE_MAX - offsetof(RASTER, cells) + 1));
ASSERT(errno == ENOMEM);
raster = rtgrpblib_create_raster(10, 20);
ASSERT(raster);
ASSERT(raster->width == 10);
ASSERT(raster->height == 20);
ASSERT(raster->size == raster->width * raster->height);
ASSERT(raster->draftness == DEFAULT_DRAFTNESS);
n = raster->width * raster->height;
for (i = 0; i < n; i++) {
ASSERT(!raster->cells[i].cell_coverage);
ASSERT(!raster->cells[i].opposite_coverage);
}
free(raster);
return 0;
}
#endif
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