Function gmtapi_alloc_grid

src/gmt_api.c:639–655

! . */

/*! . */
GMT_LOCAL int gmtapi_alloc_grid (struct GMT_CTRL *GMT, struct GMT_GRID *G) {
	/* Use information in Grid header to allocate the grid data array.
	 * We assume gmtapi_init_grdheader has already been called. */
	struct GMT_GRID_HIDDEN *GG = NULL;
	struct GMT_GRID_HEADER_HIDDEN *GH = NULL;

	if (G == NULL) return (GMT_PTR_IS_NULL);
	if (G->data) return (GMT_PTR_NOT_NULL);
	if (G->header->size == 0U) return (GMT_SIZE_IS_ZERO);
	if ((G->data = gmt_M_memory_aligned (GMT, NULL, G->header->size, gmt_grdfloat)) == NULL) return (GMT_MEMORY_ERROR);
	GH = gmt_get_H_hidden (G->header);
	GH->orig_datatype = (sizeof (gmt_grdfloat) == sizeof (float)) ? GMT_FLOAT : GMT_DOUBLE;
	GG = gmt_get_G_hidden (G);
	GG->alloc_mode = GMT_ALLOC_INTERNALLY;      /* Memory can be freed by GMT. */
	GG->alloc_level = GMT->hidden.func_level;   /* Must be freed at this level. */
	return (GMT_NOERROR);
}

/*! . */
GMT_LOCAL double * gmtapi_grid_coord (struct GMTAPI_CTRL *API, int dim, struct GMT_GRID *G) {