aboutsummaryrefslogtreecommitdiff
path: root/src/gridlist.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'src/gridlist.cpp')
-rw-r--r--src/gridlist.cpp220
1 files changed, 0 insertions, 220 deletions
diff --git a/src/gridlist.cpp b/src/gridlist.cpp
deleted file mode 100644
index c540b134..00000000
--- a/src/gridlist.cpp
+++ /dev/null
@@ -1,220 +0,0 @@
-/******************************************************************************
- * Project: PROJ.4
- * Purpose: Code to manage the list of currently loaded (cached) PJ_GRIDINFOs
- * See pj_gridinfo.c for details of loading individual grids.
- * Author: Frank Warmerdam, warmerdam@pobox.com
- *
- ******************************************************************************
- * Copyright (c) 2000, Frank Warmerdam <warmerdam@pobox.com>
- *
- * Permission is hereby granted, free of charge, to any person obtaining a
- * copy of this software and associated documentation files (the "Software"),
- * to deal in the Software without restriction, including without limitation
- * the rights to use, copy, modify, merge, publish, distribute, sublicense,
- * and/or sell copies of the Software, and to permit persons to whom the
- * Software is furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
- * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
- * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
- * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
- * DEALINGS IN THE SOFTWARE.
- *****************************************************************************/
-
-#define PJ_LIB__
-
-#include <errno.h>
-#include <stddef.h>
-#include <string.h>
-
-#include "proj.h"
-#include "proj_internal.h"
-
-static PJ_GRIDINFO *grid_list = nullptr;
-#define PJ_MAX_PATH_LENGTH 1024
-
-/************************************************************************/
-/* pj_deallocate_grids() */
-/* */
-/* Deallocate all loaded grids. */
-/************************************************************************/
-
-void pj_deallocate_grids()
-
-{
- while( grid_list != nullptr )
- {
- PJ_GRIDINFO *item = grid_list;
- grid_list = grid_list->next;
- item->next = nullptr;
-
- pj_gridinfo_free( pj_get_default_ctx(), item );
- }
-}
-
-/************************************************************************/
-/* pj_gridlist_merge_grid() */
-/* */
-/* Find/load the named gridfile and merge it into the */
-/* last_nadgrids_list. */
-/************************************************************************/
-
-static int pj_gridlist_merge_gridfile( projCtx ctx,
- const char *gridname,
- PJ_GRIDINFO ***p_gridlist,
- int *p_gridcount,
- int *p_gridmax )
-
-{
- int got_match=0;
- PJ_GRIDINFO *this_grid, *tail = nullptr;
-
-/* -------------------------------------------------------------------- */
-/* Try to find in the existing list of loaded grids. Add all */
-/* matching grids as with NTv2 we can get many grids from one */
-/* file (one shared gridname). */
-/* -------------------------------------------------------------------- */
- for( this_grid = grid_list; this_grid != nullptr; this_grid = this_grid->next)
- {
- if( strcmp(this_grid->gridname,gridname) == 0 )
- {
- got_match = 1;
-
- /* don't add to the list if it is invalid. */
- if( this_grid->ct == nullptr )
- return 0;
-
- /* do we need to grow the list? */
- if( *p_gridcount >= *p_gridmax - 2 )
- {
- PJ_GRIDINFO **new_list;
- int new_max = *p_gridmax + 20;
-
- new_list = (PJ_GRIDINFO **) pj_calloc(new_max, sizeof(void *));
- if (!new_list) {
- pj_ctx_set_errno( ctx, ENOMEM );
- return 0;
- }
- if( *p_gridlist != nullptr )
- {
- memcpy( new_list, *p_gridlist,
- sizeof(void *) * (*p_gridmax) );
- pj_dalloc( *p_gridlist );
- }
-
- *p_gridlist = new_list;
- *p_gridmax = new_max;
- }
-
- /* add to the list */
- (*p_gridlist)[(*p_gridcount)++] = this_grid;
- (*p_gridlist)[*p_gridcount] = nullptr;
- }
-
- tail = this_grid;
- }
-
- if( got_match )
- return 1;
-
-/* -------------------------------------------------------------------- */
-/* Try to load the named grid. */
-/* -------------------------------------------------------------------- */
- this_grid = pj_gridinfo_init( ctx, gridname );
-
- if( this_grid == nullptr )
- {
- return 0;
- }
-
- if( tail != nullptr )
- tail->next = this_grid;
- else
- grid_list = this_grid;
-
-/* -------------------------------------------------------------------- */
-/* Recurse to add the grid now that it is loaded. */
-/* -------------------------------------------------------------------- */
- return pj_gridlist_merge_gridfile( ctx, gridname, p_gridlist,
- p_gridcount, p_gridmax );
-}
-
-/************************************************************************/
-/* pj_gridlist_from_nadgrids() */
-/* */
-/* This functions loads the list of grids corresponding to a */
-/* particular nadgrids string into a list, and returns it. The */
-/* list is kept around till a request is made with a different */
-/* string in order to cut down on the string parsing cost, and */
-/* the cost of building the list of tables each time. */
-/************************************************************************/
-
-PJ_GRIDINFO **pj_gridlist_from_nadgrids( projCtx ctx, const char *nadgrids,
- int *grid_count)
-
-{
- const char *s;
- PJ_GRIDINFO **gridlist = nullptr;
- int grid_max = 0;
-
- pj_errno = 0;
- *grid_count = 0;
-
- pj_acquire_lock();
-
-/* -------------------------------------------------------------------- */
-/* Loop processing names out of nadgrids one at a time. */
-/* -------------------------------------------------------------------- */
- for( s = nadgrids; *s != '\0'; )
- {
- size_t end_char;
- int required = 1;
- char name[PJ_MAX_PATH_LENGTH];
-
- if( *s == '@' )
- {
- required = 0;
- s++;
- }
-
- for( end_char = 0;
- s[end_char] != '\0' && s[end_char] != ',';
- end_char++ ) {}
-
- if( end_char >= sizeof(name) )
- {
- pj_dalloc( gridlist );
- pj_ctx_set_errno( ctx, PJD_ERR_FAILED_TO_LOAD_GRID );
- pj_release_lock();
- return nullptr;
- }
-
- strncpy( name, s, end_char );
- name[end_char] = '\0';
-
- s += end_char;
- if( *s == ',' )
- s++;
-
- if( !pj_gridlist_merge_gridfile( ctx, name, &gridlist, grid_count,
- &grid_max)
- && required )
- {
- pj_dalloc( gridlist );
- pj_ctx_set_errno( ctx, PJD_ERR_FAILED_TO_LOAD_GRID );
- pj_release_lock();
- return nullptr;
- }
- else
- pj_errno = 0;
- }
-
- pj_release_lock();
-
- return gridlist;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2025-12-15 18:38:46 +0000