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Diffstat (limited to 'apps/graphics/traveler/include/trv_trigtbl.h')
-rw-r--r-- | apps/graphics/traveler/include/trv_trigtbl.h | 75 |
1 files changed, 75 insertions, 0 deletions
diff --git a/apps/graphics/traveler/include/trv_trigtbl.h b/apps/graphics/traveler/include/trv_trigtbl.h new file mode 100644 index 000000000..2b73647c2 --- /dev/null +++ b/apps/graphics/traveler/include/trv_trigtbl.h @@ -0,0 +1,75 @@ +/**************************************************************************** + * apps/graphics/traveler/include/trv_trigtbl.h + * + * Copyright (C) 2014 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <gnutt@nuttx.org> + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name NuttX nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +#ifndef __APPS_GRAPHICS_TRAVELER_INCLUDE_TRV_TRIGTBL_H +#define __APPS_GRAPHICS_TRAVELER_INCLUDE_TRV_TRIGTBL_H + +/**************************************************************************** + * Included Files + ****************************************************************************/ + +#include "trv_types.h" + +/**************************************************************************** + * Pre-processor Definitions + ****************************************************************************/ + +/* These are definitions of commonly used angles. */ + +#define TWOPI 1920 +#define PI 960 +#define HALFPI 480 +#define QTRPI 240 + +/* Here are definitions for those who prefer degrees */ +/* NOTE: ANGLE_60 and ANGLE_30 are special values. They were */ +/* chosen to match the horizontal screen resolution of 320 pixels. */ +/* These, in fact, drive the entire angular measurement system */ + +#define ANGLE_0 0 +#define ANGLE_6 32 +#define ANGLE_9 48 +#define ANGLE_30 160 +#define ANGLE_60 320 +#define ANGLE_90 480 +#define ANGLE_180 960 +#define ANGLE_270 1440 +#define ANGLE_360 1920 + +/**************************************************************************** + * Public Function Prototypes + ****************************************************************************/ + +#endif /* __APPS_GRAPHICS_TRAVELER_INCLUDE_TRV_TRIGTBL_H */ |