1 files changed, 115 insertions, 0 deletions
diff --git a/src/proj_internal.h b/src/proj_internal.h
new file mode 100644
index 00000000..da457077
--- /dev/null
+++ b/src/proj_internal.h
@@ -0,0 +1,115 @@
+/******************************************************************************
+ * Project:  PROJ.4
+ * Purpose:  Internal plumbing for the PROJ.4 library.
+ *
+ * Author:   Thomas Knudsen, <thokn@sdfe.dk>
+ *
+ ******************************************************************************
+ * Copyright (c) 2016, 2017, Thomas Knudsen / SDFE
+ *
+ * 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 COORD 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.
+ *****************************************************************************/
+
+#ifdef _MSC_VER
+#ifndef _USE_MATH_DEFINES
+#define _USE_MATH_DEFINES
+#endif
+#endif
+#include <math.h>   /* For M_PI */
+
+#include <proj.h>
+
+#ifdef PROJECTS_H
+#error proj_internal.h must be included before projects.h
+#endif
+#ifdef PROJ_API_H
+#error proj_internal.h must be included before proj_api.h
+#endif
+
+#ifndef PROJ_INTERNAL_H
+#define PROJ_INTERNAL_H
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+
+#ifndef PJ_TODEG
+#define PJ_TODEG(rad)  ((rad)*180.0/M_PI)
+#endif
+#ifndef PJ_TORAD
+#define PJ_TORAD(deg)  ((deg)*M_PI/180.0)
+#endif
+
+
+
+PJ_COORD proj_coord_error (void);
+PJ_OBS   proj_obs_error (void);
+#ifndef PJ_INTERNAL_C
+extern const PJ_COORD proj_coord_null;
+extern const PJ_OBS   proj_obs_null;
+#endif
+/* Part of MSVC workaround: Make proj_*_null look function-like for symmetry with proj_*_error */
+#define proj_coord_null(x) proj_coord_null
+#define proj_obs_null(x) proj_obs_null
+
+
+void proj_context_errno_set (PJ_CONTEXT *ctx, int err);
+void proj_context_set (PJ *P, PJ_CONTEXT *ctx);
+void proj_context_inherit (PJ *parent, PJ *child);
+
+
+PJ_OBS pj_fwdobs (PJ_OBS obs, PJ *P);
+PJ_OBS pj_invobs (PJ_OBS obs, PJ *P);
+PJ_COORD pj_fwdcoord (PJ_COORD coo, PJ *P);
+PJ_COORD pj_invcoord (PJ_COORD coo, PJ *P);
+
+
+
+/* High level functionality for handling thread contexts */
+enum proj_log_level {
+    PJ_LOG_NONE  = 0,
+    PJ_LOG_ERROR = 1,
+    PJ_LOG_DEBUG = 2,
+    PJ_LOG_TRACE = 3,
+    PJ_LOG_TELL  = 4,
+    PJ_LOG_DEBUG_MAJOR = 2, /* for proj_api.h compatibility */
+    PJ_LOG_DEBUG_MINOR = 3  /* for proj_api.h compatibility */
+};
+
+/* Set logging level 0-3. Higher number means more debug info. 0 turns it off */
+enum proj_log_level proj_log_level (PJ_CONTEXT *ctx, enum proj_log_level log_level);
+typedef void (*PJ_LOG_FUNCTION)(void *, int, const char *);
+
+void proj_log_error (PJ *P, const char *fmt, ...);
+void proj_log_debug (PJ *P, const char *fmt, ...);
+void proj_log_trace (PJ *P, const char *fmt, ...);
+/*void proj_log_func (PJ *P, void *app_data, void (*log)(void *, int, const char *));*/
+void proj_log_func (PJ_CONTEXT *ctx, void *app_data, PJ_LOG_FUNCTION log);
+
+
+/* Lowest level: Minimum support for fileapi */
+void proj_fileapi_set (PJ *P, void *fileapi);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* ndef PROJ_INTERNAL_H */