diff options
Diffstat (limited to 'indra/llmessage/llregionhandle.h')
| -rw-r--r-- | indra/llmessage/llregionhandle.h | 252 |
1 files changed, 126 insertions, 126 deletions
diff --git a/indra/llmessage/llregionhandle.h b/indra/llmessage/llregionhandle.h index 284426c148..f732cdcce5 100644 --- a/indra/llmessage/llregionhandle.h +++ b/indra/llmessage/llregionhandle.h @@ -1,126 +1,126 @@ -/** - * @file llregionhandle.h - * @brief Routines for converting positions to/from region handles. - * - * $LicenseInfo:firstyear=2002&license=viewerlgpl$ - * Second Life Viewer Source Code - * Copyright (C) 2010, Linden Research, Inc. - * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; - * version 2.1 of the License only. - * - * This library 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 - * Lesser General Public License for more details. - * - * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA - * - * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA - * $/LicenseInfo$ - */ - -#ifndef LL_LLREGIONHANDLE_H -#define LL_LLREGIONHANDLE_H - -#include "indra_constants.h" -#include "v3math.h" -#include "v3dmath.h" - -inline U64 to_region_handle(const U32 x_origin, const U32 y_origin) -{ - U64 region_handle; - region_handle = ((U64)x_origin) << 32; - region_handle |= (U64) y_origin; - return region_handle; -} - -inline U64 to_region_handle(const LLVector3d& pos_global) -{ - U32 global_x = (U32)pos_global.mdV[VX]; - global_x -= global_x % 256; - - U32 global_y = (U32)pos_global.mdV[VY]; - global_y -= global_y % 256; - - return to_region_handle(global_x, global_y); -} - -inline U64 to_region_handle_global(const F32 x_global, const F32 y_global) -{ - // Round down to the nearest origin - U32 x_origin = (U32)x_global; - x_origin -= x_origin % REGION_WIDTH_U32; - U32 y_origin = (U32)y_global; - y_origin -= y_origin % REGION_WIDTH_U32; - U64 region_handle; - region_handle = ((U64)x_origin) << 32; - region_handle |= (U64) y_origin; - return region_handle; -} - -inline bool to_region_handle(const F32 x_pos, const F32 y_pos, U64 *region_handle) -{ - U32 x_int, y_int; - if (x_pos < 0.f) - { -// LL_WARNS() << "to_region_handle:Clamping negative x position " << x_pos << " to zero!" << LL_ENDL; - return false; - } - else - { - x_int = (U32)ll_round(x_pos); - } - if (y_pos < 0.f) - { -// LL_WARNS() << "to_region_handle:Clamping negative y position " << y_pos << " to zero!" << LL_ENDL; - return false; - } - else - { - y_int = (U32)ll_round(y_pos); - } - *region_handle = to_region_handle(x_int, y_int); - return true; -} - -// stuff the word-frame XY location of sim's SouthWest corner in x_pos, y_pos -inline void from_region_handle(const U64 ®ion_handle, F32 *x_pos, F32 *y_pos) -{ - *x_pos = (F32)((U32)(region_handle >> 32)); - *y_pos = (F32)((U32)(region_handle & 0xFFFFFFFF)); -} - -// stuff the word-frame XY location of sim's SouthWest corner in x_pos, y_pos -inline void from_region_handle(const U64 ®ion_handle, U32 *x_pos, U32 *y_pos) -{ - *x_pos = ((U32)(region_handle >> 32)); - *y_pos = ((U32)(region_handle & 0xFFFFFFFF)); -} - -// return the word-frame XY location of sim's SouthWest corner in LLVector3d -inline LLVector3d from_region_handle(const U64 ®ion_handle) -{ - return LLVector3d(((U32)(region_handle >> 32)), (U32)(region_handle & 0xFFFFFFFF), 0.f); -} - -// grid-based region handle encoding. pass in a grid position -// (eg: 1000,1000) and this will return the region handle. -inline U64 grid_to_region_handle(const U32 grid_x, const U32 grid_y) -{ - return to_region_handle(grid_x * REGION_WIDTH_UNITS, - grid_y * REGION_WIDTH_UNITS); -} - -inline void grid_from_region_handle(const U64& region_handle, U32* grid_x, U32* grid_y) -{ - from_region_handle(region_handle, grid_x, grid_y); - *grid_x /= REGION_WIDTH_UNITS; - *grid_y /= REGION_WIDTH_UNITS; -} - -#endif +/**
+ * @file llregionhandle.h
+ * @brief Routines for converting positions to/from region handles.
+ *
+ * $LicenseInfo:firstyear=2002&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2010, Linden Research, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ *
+ * This library 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ *
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA 94111 USA
+ * $/LicenseInfo$
+ */
+
+#ifndef LL_LLREGIONHANDLE_H
+#define LL_LLREGIONHANDLE_H
+
+#include "indra_constants.h"
+#include "v3math.h"
+#include "v3dmath.h"
+
+inline U64 to_region_handle(const U32 x_origin, const U32 y_origin)
+{
+ U64 region_handle;
+ region_handle = ((U64)x_origin) << 32;
+ region_handle |= (U64) y_origin;
+ return region_handle;
+}
+
+inline U64 to_region_handle(const LLVector3d& pos_global)
+{
+ U32 global_x = (U32)pos_global.mdV[VX];
+ global_x -= global_x % 256;
+
+ U32 global_y = (U32)pos_global.mdV[VY];
+ global_y -= global_y % 256;
+
+ return to_region_handle(global_x, global_y);
+}
+
+inline U64 to_region_handle_global(const F32 x_global, const F32 y_global)
+{
+ // Round down to the nearest origin
+ U32 x_origin = (U32)x_global;
+ x_origin -= x_origin % REGION_WIDTH_U32;
+ U32 y_origin = (U32)y_global;
+ y_origin -= y_origin % REGION_WIDTH_U32;
+ U64 region_handle;
+ region_handle = ((U64)x_origin) << 32;
+ region_handle |= (U64) y_origin;
+ return region_handle;
+}
+
+inline bool to_region_handle(const F32 x_pos, const F32 y_pos, U64 *region_handle)
+{
+ U32 x_int, y_int;
+ if (x_pos < 0.f)
+ {
+// LL_WARNS() << "to_region_handle:Clamping negative x position " << x_pos << " to zero!" << LL_ENDL;
+ return false;
+ }
+ else
+ {
+ x_int = (U32)ll_round(x_pos);
+ }
+ if (y_pos < 0.f)
+ {
+// LL_WARNS() << "to_region_handle:Clamping negative y position " << y_pos << " to zero!" << LL_ENDL;
+ return false;
+ }
+ else
+ {
+ y_int = (U32)ll_round(y_pos);
+ }
+ *region_handle = to_region_handle(x_int, y_int);
+ return true;
+}
+
+// stuff the word-frame XY location of sim's SouthWest corner in x_pos, y_pos
+inline void from_region_handle(const U64 ®ion_handle, F32 *x_pos, F32 *y_pos)
+{
+ *x_pos = (F32)((U32)(region_handle >> 32));
+ *y_pos = (F32)((U32)(region_handle & 0xFFFFFFFF));
+}
+
+// stuff the word-frame XY location of sim's SouthWest corner in x_pos, y_pos
+inline void from_region_handle(const U64 ®ion_handle, U32 *x_pos, U32 *y_pos)
+{
+ *x_pos = ((U32)(region_handle >> 32));
+ *y_pos = ((U32)(region_handle & 0xFFFFFFFF));
+}
+
+// return the word-frame XY location of sim's SouthWest corner in LLVector3d
+inline LLVector3d from_region_handle(const U64 ®ion_handle)
+{
+ return LLVector3d(((U32)(region_handle >> 32)), (U32)(region_handle & 0xFFFFFFFF), 0.f);
+}
+
+// grid-based region handle encoding. pass in a grid position
+// (eg: 1000,1000) and this will return the region handle.
+inline U64 grid_to_region_handle(const U32 grid_x, const U32 grid_y)
+{
+ return to_region_handle(grid_x * REGION_WIDTH_UNITS,
+ grid_y * REGION_WIDTH_UNITS);
+}
+
+inline void grid_from_region_handle(const U64& region_handle, U32* grid_x, U32* grid_y)
+{
+ from_region_handle(region_handle, grid_x, grid_y);
+ *grid_x /= REGION_WIDTH_UNITS;
+ *grid_y /= REGION_WIDTH_UNITS;
+}
+
+#endif
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