101 lines
3.8 KiB
C
101 lines
3.8 KiB
C
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/****************************************************************************
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* apps/graphics/traveler/include/trv_graphicfile.h
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*
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* Copyright (C) 2014 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#ifndef __APPS_GRAPHICS_TRAVELER_INCLUDE_TRV_GRAPHICFILE_H
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#define __APPS_GRAPHICS_TRAVELER_INCLUDE_TRV_GRAPHICFILE_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include "trv_types.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* MAGIC_LENGTH must be the length of the longest MAGIC string. */
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#define MAGIC_LENGTH 5
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#define GIF_MAGIC "GIF87"
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#define GIF89_MAGIC "GIF89"
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#define PPM_MAGIC "P6"
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/****************************************************************************
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* Public Type Definitions
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****************************************************************************/
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enum trv_graphicfile_format_e
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{
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GRAPHICFILE_UNKNOWN = 0,
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GRAPHICFILE_GIF87,
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GRAPHICFILE_GIF89,
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GRAPHICFILE_PPM,
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GRAPHICFILE_PCX
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};
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enum trv_graphicfile_type_e
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{
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GRAPHICFILE_TRUECOLOR = 0,
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GRAPHICFILE_PALETTED
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};
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struct trv_graphicfile_s
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{
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uint8_t type; /* See enum trv_graphicfile_type_e */
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uint16_t height;
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uint16_t width;
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int palette_entries;
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long transparent_entry;
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FAR struct trv_color_rgb_s *palette;
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FAR uint8_t *bitmap;
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};
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/****************************************************************************
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* Public Data
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****************************************************************************/
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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FAR struct trv_graphicfile_s *trv_graphicfile_new(void);
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void trv_graphicfile_free(struct trv_graphicfile_s *gfile);
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struct trv_color_rgb_s
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trv_graphicfile_pixel(FAR struct trv_graphicfile_s *gfile, int x, int y);
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struct trv_graphicfile_s *tvr_graphicfile_read(FAR char *filename);
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#endif /* __APPS_GRAPHICS_TRAVELER_INCLUDE_TRV_GRAPHICFILE_H */
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