Constantin Kaplinsky | a2adc8d | 2006-05-25 05:01:55 +0000 | [diff] [blame] | 1 | /* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved. |
DRC | ffe09d6 | 2011-08-17 02:27:59 +0000 | [diff] [blame] | 2 | * Copyright (C) 2011 D. R. Commander. All Rights Reserved. |
Pierre Ossman | 6655d96 | 2014-01-20 14:50:19 +0100 | [diff] [blame] | 3 | * Copyright 2009-2014 Pierre Ossman for Cendio AB |
Constantin Kaplinsky | a2adc8d | 2006-05-25 05:01:55 +0000 | [diff] [blame] | 4 | * |
| 5 | * This is free software; you can redistribute it and/or modify |
| 6 | * it under the terms of the GNU General Public License as published by |
| 7 | * the Free Software Foundation; either version 2 of the License, or |
| 8 | * (at your option) any later version. |
| 9 | * |
| 10 | * This software is distributed in the hope that it will be useful, |
| 11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | * GNU General Public License for more details. |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License |
| 16 | * along with this software; if not, write to the Free Software |
| 17 | * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, |
| 18 | * USA. |
| 19 | */ |
| 20 | // |
| 21 | // PixelFormat - structure to represent a pixel format. Also has useful |
Pierre Ossman | 823665c | 2014-01-20 16:55:19 +0100 | [diff] [blame] | 22 | // methods for reading & writing to streams, etc. Conversion to and from |
| 23 | // other formats are also handled by this class. We have three different |
| 24 | // representations that we refer to: |
| 25 | // |
| 26 | // a) Pixels - Unsigned native integers in the format specified by this |
| 27 | // PixelFormat object. |
| 28 | // b) Buffer - Same thing as pixels, but in the appropriate byte stream |
| 29 | // format. This involves endian conversion and padding. |
| 30 | // c) RGB - A byte stream of 8 bit red, green and blue elements, in that |
| 31 | // order. |
Constantin Kaplinsky | a2adc8d | 2006-05-25 05:01:55 +0000 | [diff] [blame] | 32 | // |
| 33 | |
| 34 | #ifndef __RFB_PIXELFORMAT_H__ |
| 35 | #define __RFB_PIXELFORMAT_H__ |
| 36 | |
| 37 | #include <rfb/Pixel.h> |
| 38 | #include <rfb/ColourMap.h> |
| 39 | |
| 40 | namespace rdr { class InStream; class OutStream; } |
| 41 | |
| 42 | namespace rfb { |
| 43 | |
| 44 | class PixelFormat { |
| 45 | public: |
| 46 | PixelFormat(int b, int d, bool e, bool t, |
| 47 | int rm=0, int gm=0, int bm=0, int rs=0, int gs=0, int bs=0); |
| 48 | PixelFormat(); |
Pierre Ossman | 67b2b2f | 2009-03-06 10:12:55 +0000 | [diff] [blame] | 49 | |
Constantin Kaplinsky | a2adc8d | 2006-05-25 05:01:55 +0000 | [diff] [blame] | 50 | bool equal(const PixelFormat& other) const; |
Pierre Ossman | 67b2b2f | 2009-03-06 10:12:55 +0000 | [diff] [blame] | 51 | |
Constantin Kaplinsky | a2adc8d | 2006-05-25 05:01:55 +0000 | [diff] [blame] | 52 | void read(rdr::InStream* is); |
| 53 | void write(rdr::OutStream* os) const; |
Pierre Ossman | 67b2b2f | 2009-03-06 10:12:55 +0000 | [diff] [blame] | 54 | |
| 55 | bool is888(void) const; |
| 56 | bool isBigEndian(void) const; |
| 57 | bool isLittleEndian(void) const; |
| 58 | |
| 59 | inline Pixel pixelFromBuffer(const rdr::U8* buffer) const; |
Pierre Ossman | 19501b8 | 2009-03-31 14:06:53 +0000 | [diff] [blame] | 60 | inline void bufferFromPixel(rdr::U8* buffer, Pixel pixel) const; |
Pierre Ossman | 67b2b2f | 2009-03-06 10:12:55 +0000 | [diff] [blame] | 61 | |
Pierre Ossman | 8b874e4 | 2014-01-20 17:23:51 +0100 | [diff] [blame] | 62 | inline Pixel pixelFromRGB(rdr::U16 red, rdr::U16 green, rdr::U16 blue, ColourMap* cm=0) const; |
| 63 | inline Pixel pixelFromRGB(rdr::U8 red, rdr::U8 green, rdr::U8 blue, ColourMap* cm=0) const; |
Pierre Ossman | 67b2b2f | 2009-03-06 10:12:55 +0000 | [diff] [blame] | 64 | |
Pierre Ossman | 19501b8 | 2009-03-31 14:06:53 +0000 | [diff] [blame] | 65 | void bufferFromRGB(rdr::U8 *dst, const rdr::U8* src, int pixels, ColourMap* cm=0) const; |
Pierre Ossman | a10d8fe | 2014-01-22 11:28:05 +0100 | [diff] [blame] | 66 | void bufferFromRGB(rdr::U8 *dst, const rdr::U8* src, int w, int stride, |
DRC | 33c15e3 | 2011-11-03 18:49:21 +0000 | [diff] [blame] | 67 | int h, ColourMap* cm=0) const; |
Pierre Ossman | 19501b8 | 2009-03-31 14:06:53 +0000 | [diff] [blame] | 68 | |
Constantin Kaplinsky | a2adc8d | 2006-05-25 05:01:55 +0000 | [diff] [blame] | 69 | void rgbFromPixel(Pixel pix, ColourMap* cm, Colour* rgb) const; |
Pierre Ossman | 67b2b2f | 2009-03-06 10:12:55 +0000 | [diff] [blame] | 70 | inline void rgbFromPixel(Pixel pix, ColourMap* cm, rdr::U16 *r, rdr::U16 *g, rdr::U16 *b) const; |
| 71 | inline void rgbFromPixel(Pixel pix, ColourMap* cm, rdr::U8 *r, rdr::U8 *g, rdr::U8 *b) const; |
| 72 | |
Pierre Ossman | 67b2b2f | 2009-03-06 10:12:55 +0000 | [diff] [blame] | 73 | void rgbFromBuffer(rdr::U8* dst, const rdr::U8* src, int pixels, ColourMap* cm=0) const; |
Pierre Ossman | a10d8fe | 2014-01-22 11:28:05 +0100 | [diff] [blame] | 74 | void rgbFromBuffer(rdr::U8* dst, const rdr::U8* src, int w, int stride, |
DRC | ffe09d6 | 2011-08-17 02:27:59 +0000 | [diff] [blame] | 75 | int h, ColourMap* cm=0) const; |
Pierre Ossman | 67b2b2f | 2009-03-06 10:12:55 +0000 | [diff] [blame] | 76 | |
Constantin Kaplinsky | a2adc8d | 2006-05-25 05:01:55 +0000 | [diff] [blame] | 77 | void print(char* str, int len) const; |
| 78 | bool parse(const char* str); |
| 79 | |
Pierre Ossman | 67b2b2f | 2009-03-06 10:12:55 +0000 | [diff] [blame] | 80 | protected: |
Pierre Ossman | 19dbca2 | 2009-04-21 17:30:45 +0000 | [diff] [blame] | 81 | void updateState(void); |
Pierre Ossman | 6655d96 | 2014-01-20 14:50:19 +0100 | [diff] [blame] | 82 | bool isSane(void); |
Pierre Ossman | 67b2b2f | 2009-03-06 10:12:55 +0000 | [diff] [blame] | 83 | |
| 84 | public: |
Constantin Kaplinsky | a2adc8d | 2006-05-25 05:01:55 +0000 | [diff] [blame] | 85 | int bpp; |
| 86 | int depth; |
Constantin Kaplinsky | a2adc8d | 2006-05-25 05:01:55 +0000 | [diff] [blame] | 87 | bool trueColour; |
Pierre Ossman | 67b2b2f | 2009-03-06 10:12:55 +0000 | [diff] [blame] | 88 | |
| 89 | // FIXME: These should be protected, but we need to fix TransImageGetter first. |
| 90 | public: |
| 91 | bool bigEndian; |
Constantin Kaplinsky | a2adc8d | 2006-05-25 05:01:55 +0000 | [diff] [blame] | 92 | int redMax; |
| 93 | int greenMax; |
| 94 | int blueMax; |
| 95 | int redShift; |
| 96 | int greenShift; |
| 97 | int blueShift; |
Pierre Ossman | 67b2b2f | 2009-03-06 10:12:55 +0000 | [diff] [blame] | 98 | |
| 99 | protected: |
Pierre Ossman | 6e5cd5d | 2014-02-28 11:54:34 +0100 | [diff] [blame] | 100 | /* Pre-computed values to keep algorithms simple */ |
| 101 | int redBits, greenBits, blueBits; |
| 102 | int maxBits, minBits; |
Pierre Ossman | 19dbca2 | 2009-04-21 17:30:45 +0000 | [diff] [blame] | 103 | bool endianMismatch; |
Constantin Kaplinsky | a2adc8d | 2006-05-25 05:01:55 +0000 | [diff] [blame] | 104 | }; |
| 105 | } |
Pierre Ossman | 67b2b2f | 2009-03-06 10:12:55 +0000 | [diff] [blame] | 106 | |
| 107 | #include <rfb/PixelFormat.inl> |
| 108 | |
Constantin Kaplinsky | a2adc8d | 2006-05-25 05:01:55 +0000 | [diff] [blame] | 109 | #endif |