82 lines
2.7 KiB
C
82 lines
2.7 KiB
C
/*
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pcx.h
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pcx image handling
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Copyright (C) 1996-1997 Id Software, Inc.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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*/
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#ifndef __QF_pcx_h
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#define __QF_pcx_h
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#include "QF/qtypes.h"
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#include "QF/quakeio.h"
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/** A ZSoft PC Paintbrush (PCX) header */
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typedef struct
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{
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char manufacturer; ///< Manufacturer: Must be 10
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char version; ///< PCX version: must be 5
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char encoding; ///< Coding used: must be 1
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char bits_per_pixel; ///< BPP: must be 8 for QF
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unsigned short xmin, ymin, xmax, ymax;
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unsigned short hres, vres; ///< resolution of image (DPI)
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unsigned char palette[48];
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char reserved; ///< should be 0
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char color_planes; ///< Number of color planes
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unsigned short bytes_per_line; ///< Number of bytes for a scan line (per plane). According to ZSoft, must be an even number.
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unsigned short palette_type; ///< Palette info: 1 = color, 2 = greyscale
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char filler[58];
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} pcx_t;
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/**
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Convert \b paletted image data to PCX format.
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\param data A pointer to the buffer containing the source image
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\param width The width, in pixels, of the source image
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\param height The height, in pixels, of the source image
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\param rowbytes The number of bytes in a row of an image (usually the same
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as the width)
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\param palette The palette in use for the texture.
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\param flip If true, flip the order of lines output.
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\param[out] length The length of the encoded PCX data.
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\return A pointer to the newly-coded PCX data.
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\warning Uses Hunk_TempAlloc() to allocate the output PCX content.
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*/
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pcx_t *EncodePCX (const byte *data, int width, int height, int rowbytes,
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const byte *palette, qboolean flip, int *length);
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/**
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Load a texture from a PCX file.
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\param f The file to read the texture from
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\param convert If true, the texture is converted to RGB on load
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\param pal The palette to apply during conversion
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\param load If false, only the format and size info is loaded
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\return A pointer to the texture.
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\warning Uses Hunk_TempAlloc() to allocate the texture.
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*/
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struct tex_s *LoadPCX (QFile *f, qboolean convert, const byte *pal, int load);
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#endif//__QF_pcx_h
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