manual/plugins/jpegviewer.tex

   1 % $Id$ %
   2 \subsection{JPEG viewer}
   3 This plugin opens \fname{.jpeg} files from the \setting{File Browser} to display them\nopt{lcd_color}{ using Rockbox's greyscale library}.
   4 \opt{swcodec}{
   5 \par
   6 \note{
   7 When an audio file is playing the size of the image is limited as
   8 the decoding process needs to share memory with audio tracks. To be able to
   9 view a bigger file you may need to stop playback.}
  10 }
  11 \nopt{large_plugin_buffer}{%
  12 \note{This plugin will cause playback to stop.}%
  13 }%
  14
  15 \begin{table}
  16 \begin{btnmap}{}{}
  17     \opt{RECORDER_PAD,ONDIO_PAD,IRIVER_H100_PAD,IRIVER_H300_PAD,IAUDIO_X5_PAD%
  18       ,SANSA_E200_PAD,SANSA_FUZE_PAD,SANSA_C200_PAD,GIGABEAT_PAD,GIGABEAT_S_PAD%
  19       ,MROBE100_PAD}
  20       {\ButtonUp\ / \ButtonDown}%
  21     \opt{IPOD_4G_PAD,IPOD_3G_PAD}{\ButtonMenu\ / \ButtonPlay}%
  22     \opt{IRIVER_H10_PAD}{\ButtonScrollUp\ / \ButtonScrollDown} %
  23     \opt{RECORDER_PAD,ONDIO_PAD,IRIVER_H100_PAD,IRIVER_H300_PAD,IAUDIO_X5_PAD%
  24       ,SANSA_E200_PAD,SANSA_FUZE_PAD,SANSA_C200_PAD,GIGABEAT_PAD,GIGABEAT_S_PAD%
  25       ,MROBE100_PAD,IPOD_4G_PAD,IPOD_3G_PAD,IRIVER_H10_PAD}
  26       {/ \ButtonLeft\ / \ButtonRight}
  27     \opt{COWON_D2_PAD}{}
  28        \opt{HAVEREMOTEKEYMAP}{& }
  29     & Move around in zoomed in image\\
  30     \opt{RECORDER_PAD}{\ButtonPlay}
  31     \opt{ONDIO_PAD,COWON_D2_PAD}{\ButtonMenu}
  32     \opt{IRIVER_H100_PAD,IRIVER_H300_PAD,IAUDIO_X5_PAD,SANSA_E200_PAD%
  33         ,SANSA_FUZE_PAD,SANSA_C200_PAD,MROBE100_PAD}{\ButtonSelect}
  34     \opt{IPOD_4G_PAD,IPOD_3G_PAD}{\ButtonScrollFwd}
  35     \opt{IRIVER_H10_PAD}{\ButtonPlay}
  36     \opt{GIGABEAT_PAD,GIGABEAT_S_PAD}{\ButtonVolUp}
  37        \opt{HAVEREMOTEKEYMAP}{& }
  38     & Zoom in\\
  39     \opt{RECORDER_PAD}{\ButtonOn}
  40     \opt{ONDIO_PAD}{\ButtonMenu+\ButtonDown}
  41     \opt{IRIVER_H100_PAD,IRIVER_H300_PAD}{\ButtonMode}
  42     \opt{IPOD_4G_PAD,IPOD_3G_PAD}{\ButtonScrollBack}
  43     \opt{IAUDIO_X5_PAD,SANSA_E200_PAD,SANSA_FUZE_PAD,SANSA_C200_PAD}{Long \ButtonSelect}
  44     \opt{IRIVER_H10_PAD}{Long \ButtonPlay}
  45     \opt{GIGABEAT_PAD,GIGABEAT_S_PAD}{\ButtonVolDown}
  46     \opt{MROBE100_PAD}{\ButtonPlay}
  47        \opt{HAVEREMOTEKEYMAP}{& }
  48     & Zoom out\\
  49     \opt{RECORDER_PAD}{\ButtonFThree}
  50     \opt{ONDIO_PAD}{\ButtonMenu+\ButtonRight}
  51     \opt{IRIVER_H100_PAD}{\ButtonOn}
  52     \opt{IRIVER_H300_PAD}{\ButtonRec}
  53     \opt{IPOD_4G_PAD,IPOD_3G_PAD}{\ButtonSelect+\ButtonRight}
  54     \opt{IAUDIO_X5_PAD}{\ButtonPlay}
  55     \opt{IRIVER_H10_PAD}{\ButtonFF}
  56     \opt{SANSA_E200_PAD,SANSA_FUZE_PAD}{\ButtonScrollFwd}
  57     \opt{SANSA_C200_PAD}{\ButtonVolUp}
  58     \opt{GIGABEAT_PAD}{\ButtonA+\ButtonRight}
  59     \opt{GIGABEAT_S_PAD}{\ButtonNext}
  60     \opt{MROBE100_PAD}{\ButtonDisplay+\ButtonRight}
  61        \opt{HAVEREMOTEKEYMAP}{& }
  62     & Next jpeg in directory\\
  63     \opt{RECORDER_PAD}{\ButtonFTwo}
  64     \opt{ONDIO_PAD}{\ButtonMenu+\ButtonLeft}
  65     \opt{IRIVER_H100_PAD,IAUDIO_X5_PAD}{\ButtonRec}
  66     \opt{IRIVER_H300_PAD}{\ButtonOn}
  67     \opt{IPOD_4G_PAD,IPOD_3G_PAD}{\ButtonSelect+\ButtonLeft}
  68     \opt{IRIVER_H10_PAD}{\ButtonRew}
  69     \opt{SANSA_E200_PAD,SANSA_FUZE_PAD}{\ButtonScrollBack}
  70     \opt{SANSA_C200_PAD}{\ButtonVolDown}
  71     \opt{GIGABEAT_PAD}{\ButtonA+\ButtonLeft}
  72     \opt{GIGABEAT_S_PAD}{\ButtonPrev}
  73     \opt{MROBE100_PAD}{\ButtonDisplay+\ButtonLeft}
  74        \opt{HAVEREMOTEKEYMAP}{& }
  75     & Previous jpeg in directory\\
  76     \opt{SANSA_E200_PAD,SANSA_C200_PAD}{%currently only defined for the sansa pads
  77         \ButtonRec
  78        \opt{HAVEREMOTEKEYMAP}{& }
  79         & Toggle slide show mode\\
  80     }
  81     \opt{RECORDER_PAD,ONDIO_PAD,IRIVER_H100_PAD,IRIVER_H300_PAD}{\ButtonOff}
  82     \opt{IPOD_4G_PAD,IPOD_3G_PAD}{\ButtonSelect+\ButtonMenu}
  83     \opt{IAUDIO_X5_PAD,IRIVER_H10_PAD,SANSA_E200_PAD,SANSA_C200_PAD}{\ButtonPower}
  84     \opt{SANSA_FUZE_PAD}{Long \ButtonHome}
  85     \opt{GIGABEAT_PAD,GIGABEAT_S_PAD,MROBE100_PAD}{\ButtonMenu}
  86     \opt{COWON_D2_PAD}{\ButtonPower}
  87        \opt{HAVEREMOTEKEYMAP}{&
  88           \opt{IRIVER_RC_H100_PAD}{\ButtonRCStop}
  89        }
  90     & Show menu / Abort \\
  91     \opt{IPOD_4G_PAD,IPOD_3G_PAD,GIGABEAT_PAD,GIGABEAT_S_PAD,MROBE100_PAD}{
  92         \opt{IPOD_4G_PAD,IPOD_3G_PAD}{\ButtonSelect+\ButtonPlay}
  93         \opt{GIGABEAT_PAD,MROBE100_PAD}{\ButtonPower}
  94         \opt{GIGABEAT_S_PAD}{\ButtonBack}
  95             \opt{HAVEREMOTEKEYMAP}{& }
  96         & Quit the viewer \\
  97     }
  98 \end{btnmap}
  99 \end{table}
 100
 101 The menu has the following entries.
 102 \begin{description}
 103 \item[Return.] Returns you to the image
 104 \item[Toggle Slideshow Mode.] Enables or disables the slideshow mode.
 105 \item[Change Slideshow Timeout.] You can set the timeout for the slideshow
 106   between 1 second and 20 seconds.
 107 \opt{large_plugin_buffer}{
 108 \item[Show Playback Menu.] From the playback menu you can control the
 109 playback of the currently loaded playlist and change the volume of your \dap.
 110 }
 111 \opt{lcd_color}{
 112 \item[Display Options.] From this menu you can force the viewer to render the
 113 image in greyscale using the \setting{Greyscale} option or set the method of
 114 dithering used in the \setting{Dithering} submenu.
 115 }
 116 \item[Quit.] Quits the viewer and returns to the \setting{File Browser}.
 117 \end{description}
 118
 119 \note{
 120 Progressive scan and other unusual JPEG files are not supported, and will
 121 result in various ``unsupported xx'' messages. Processing could also fail if the
 122 image is too big to decode which will be explained by a respective message.
 123 }