Splitting out libgis

[grits] / src / wms.h

diff --git a/src/wms.h b/src/wms.h
new file mode 100644 (file)
index 0000000..a419e74
--- /dev/null
+++ b/src/wms.h
@@ -0,0 +1,121 @@
+/*
+ * Copyright (C) 2009 Andy Spencer <spenceal@rose-hulman.edu>
+ * 
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef __WMS_H__
+#define __WMS_H__
+
+#include <math.h>
+#include <time.h>
+#include <libsoup/soup.h>
+
+typedef struct _WmsCacheNode WmsCacheNode;
+typedef struct _WmsInfo WmsInfo;
+
+typedef void (*WmsChunkCallback)(gsize cur, gsize total, gpointer user_data);
+typedef void (*WmsDoneCallback)(WmsCacheNode *node, gpointer user_data);
+typedef void (*WmsLoader)(WmsCacheNode *node, const gchar *path, gint width, gint height);
+typedef void (*WmsFreeer)(WmsCacheNode *node);
+
+/****************
+ * WmsCacheNode *
+ ****************/
+struct _WmsCacheNode {
+       gpointer data;
+       gdouble  latlon[4]; // xmin,ymin,xmax,ymax
+       gdouble  res;       // xmin,ymin,xmax,ymax
+       gboolean caching;
+       time_t   atime;
+       WmsCacheNode *parent;
+       WmsCacheNode *children[4][4];
+};
+
+WmsCacheNode *wms_cache_node_new(WmsCacheNode *parent, gdouble xmin, gdouble ymin, gdouble xmax, gdouble ymax, gint width);
+
+void wms_cache_node_free(WmsCacheNode *node, WmsFreeer freeer);
+
+/***********
+ * WmsInfo *
+ ***********/
+struct _WmsInfo {
+       gchar *uri_prefix;
+       gchar *uri_layer;
+       gchar *uri_format;
+       gchar *cache_prefix;
+       gchar *cache_ext;
+       gint   resolution;  // m/px
+       gint   width;
+       gint   height;
+
+       guint  max_age;
+       guint  gc_source;
+       time_t atime;
+       WmsLoader     loader;
+       WmsFreeer     freeer;
+       WmsCacheNode *cache_root;
+       SoupSession  *soup;
+};
+
+WmsInfo *wms_info_new(WmsLoader loader, WmsFreeer freeer,
+               gchar *uri_prefix, gchar *uri_layer, gchar *uri_format,
+               gchar *cache_prefix, gchar *cache_ext,
+               gint   resolution, gint   width, gint   height);
+
+void wms_info_cache(WmsInfo *info, gdouble resolution, gdouble lat, gdouble lon,
+               WmsChunkCallback chunk_callback, WmsDoneCallback done_callback,
+               gpointer user_data);
+
+WmsCacheNode *wms_info_fetch(WmsInfo *info, WmsCacheNode *root,
+               gdouble resolution, gdouble lat, gdouble lon,
+               gboolean *correct);
+
+WmsCacheNode *wms_info_fetch_cache(WmsInfo *info, WmsCacheNode *root,
+               gdouble resolution, gdouble lat, gdouble lon,
+               WmsChunkCallback chunk_callback, WmsDoneCallback done_callback,
+               gpointer user_data);
+
+gboolean wms_info_gc(WmsInfo *self);
+
+void wms_info_free(WmsInfo *info);
+
+
+/********************************
+ * Specific things (bmng, srtm) *
+ ********************************/
+typedef struct _WmsBil WmsBil;
+struct _WmsBil {
+       gint16 *data;
+       gint width;
+       gint height;
+};
+
+void bmng_opengl_loader(WmsCacheNode *node, const gchar *path, gint width, gint height);
+void bmng_opengl_freeer(WmsCacheNode *node);
+
+void bmng_pixbuf_loader(WmsCacheNode *node, const gchar *path, gint width, gint height);
+void bmng_pixbuf_freeer(WmsCacheNode *node);
+
+WmsInfo *wms_info_new_for_bmng(WmsLoader loader, WmsFreeer freeer);
+
+void srtm_bil_loader(WmsCacheNode *node, const gchar *path, gint width, gint height);
+void srtm_bil_freeer(WmsCacheNode *node);
+
+void srtm_pixbuf_loader(WmsCacheNode *node, const gchar *path, gint width, gint height);
+void srtm_pixbuf_freeer(WmsCacheNode *node);
+
+WmsInfo *wms_info_new_for_srtm(WmsLoader loader, WmsFreeer freeer);
+
+#endif