forked from len0rd/rockbox
b8238f7b20
Added jpeg decoder jpegp.c using RAINBOW lib. Currently enabled only for pictures not supported by old decoder (as old decoder more optimized for low mem targets) Someone TODO: * Old decoder has optimized downscale logic which new decoder doesn't have (it gives big difference in required memory and time for decoding). This logic should be ported/adapted if possible. * Add smooth downscaling. * Grayscale support Change-Id: Ie96bc62848b51cc6a3942f8e069ec6ab02dc1c56
174 lines
7.8 KiB
TeX
174 lines
7.8 KiB
TeX
% $Id$ %
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\subsection{Image Viewer}
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This plugin opens image files from the \setting{File Browser} to display them\nopt{lcd_color}{ using Rockbox's greyscale library}. Supported formats are as follows.
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\begin{table}
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\begin{rbtabular}{.60\textwidth}{lX}%
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{\textbf{Format}& \textbf{File-extension(s)}}%
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{}{}
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BMP & \fname{.bmp} \\
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JPEG & \fname{.jpg, .jpe, .jpeg} \\
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PNG & \fname{.png} \\
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GIF & \fname{.gif} \\
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\opt{lcd_color}{
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PPM & \fname{.ppm} \\
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}
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\end{rbtabular}
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\end{table}
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\opt{large_plugin_buffer}{
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\par
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\note{
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When an audio file is playing the size of the image is limited as
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the decoding process needs to share memory with audio tracks. To be able to
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view a bigger file you may need to stop playback.}
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}
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\nopt{large_plugin_buffer}{%
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\note{This plugin will cause playback to stop.}%
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}%
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\begin{btnmap}
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\opt{IRIVER_H100_PAD,IRIVER_H300_PAD,IAUDIO_X5_PAD%
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,SANSA_E200_PAD,SANSA_FUZE_PAD,SANSA_C200_PAD,SANSA_CLIP_PAD,GIGABEAT_PAD,GIGABEAT_S_PAD%
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,MROBE100_PAD,PBELL_VIBE500_PAD,SANSA_FUZEPLUS_PAD,SAMSUNG_YH92X_PAD%
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,SAMSUNG_YH820_PAD}{\ButtonUp\ / \ButtonDown}%
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\opt{IPOD_4G_PAD,IPOD_3G_PAD}{\ButtonMenu\ / \ButtonPlay}%
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\opt{IRIVER_H10_PAD}{\ButtonScrollUp\ / \ButtonScrollDown} %
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\opt{IRIVER_H100_PAD,IRIVER_H300_PAD,IAUDIO_X5_PAD%
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,SANSA_E200_PAD,SANSA_FUZE_PAD,SANSA_C200_PAD,SANSA_CLIP_PAD,GIGABEAT_PAD,GIGABEAT_S_PAD%
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,MROBE100_PAD,IPOD_4G_PAD,IPOD_3G_PAD,IRIVER_H10_PAD,PBELL_VIBE500_PAD%
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,SANSA_FUZEPLUS_PAD,SAMSUNG_YH92X_PAD,SAMSUNG_YH820_PAD}
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{/ \ButtonLeft\ / \ButtonRight}
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\opt{MPIO_HD200_PAD}{\ButtonVolDown / \ButtonVolUp /%
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\ButtonRec + \ButtonRew / \ButtonRec + \ButtonFF}
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\opt{MPIO_HD300_PAD}{\ButtonRew / \ButtonFF /%
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\ButtonPlay + \ButtonScrollUp / \ButtonPlay + \ButtonScrollDown}
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\opt{touchscreen}{\TouchTopMiddle{} / \TouchBottomMiddle{}/ \TouchMidLeft{} / \TouchMidRight}
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\opt{HAVEREMOTEKEYMAP}{& }
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& Move around in zoomed in image\\
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\opt{IRIVER_H100_PAD,IRIVER_H300_PAD,IAUDIO_X5_PAD,SANSA_E200_PAD%
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,SANSA_FUZE_PAD,SANSA_C200_PAD,SANSA_CLIP_PAD,MROBE100_PAD}{\ButtonSelect}
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\opt{IPOD_4G_PAD,IPOD_3G_PAD}{\ButtonScrollFwd}
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\opt{IRIVER_H10_PAD}{\ButtonPlay}
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\opt{GIGABEAT_PAD,GIGABEAT_S_PAD,SANSA_FUZEPLUS_PAD}{\ButtonVolUp}
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\opt{PBELL_VIBE500_PAD,SAMSUNG_YH820_PAD}{\ButtonRec+\ButtonUp}
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\opt{MPIO_HD200_PAD,MPIO_HD300_PAD}{\ButtonPlay}
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\opt{SAMSUNG_YH92X_PAD}{\ButtonPlay+\ButtonUp}
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\opt{touchscreen}{\TouchTopRight}
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\opt{HAVEREMOTEKEYMAP}{& }
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& Zoom in\\
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\opt{IRIVER_H100_PAD,IRIVER_H300_PAD}{\ButtonMode}
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\opt{IPOD_4G_PAD,IPOD_3G_PAD}{\ButtonScrollBack}
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\opt{IAUDIO_X5_PAD,SANSA_E200_PAD,SANSA_FUZE_PAD,SANSA_C200_PAD,SANSA_CLIP_PAD}{Long \ButtonSelect}
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\opt{IRIVER_H10_PAD}{Long \ButtonPlay}
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\opt{GIGABEAT_PAD,GIGABEAT_S_PAD,SANSA_FUZEPLUS_PAD}{\ButtonVolDown}
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\opt{MROBE100_PAD}{\ButtonPlay}
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\opt{PBELL_VIBE500_PAD,SAMSUNG_YH820_PAD}{\ButtonRec+\ButtonDown}
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\opt{MPIO_HD200_PAD,MPIO_HD300_PAD}{\ButtonRec}
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\opt{SAMSUNG_YH92X_PAD}{\ButtonPlay+\ButtonDown}
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\opt{touchscreen}{\TouchTopLeft}
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\opt{HAVEREMOTEKEYMAP}{& }
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& Zoom out\\
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\opt{IRIVER_H100_PAD}{\ButtonOn}
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\opt{IRIVER_H300_PAD}{\ButtonRec}
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\opt{IPOD_4G_PAD,IPOD_3G_PAD}{\ButtonSelect+\ButtonRight}
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\opt{IAUDIO_X5_PAD}{\ButtonPlay}
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\opt{SANSA_FUZEPLUS_PAD}{\ButtonBottomRight}
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\opt{IRIVER_H10_PAD,SAMSUNG_YH92X_PAD,SAMSUNG_YH820_PAD}{\ButtonFF}
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\opt{SANSA_E200_PAD,SANSA_FUZE_PAD}{\ButtonScrollFwd}
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\opt{SANSA_C200_PAD,SANSA_CLIP_PAD}{\ButtonVolUp}
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\opt{GIGABEAT_PAD}{\ButtonA+\ButtonRight}
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\opt{GIGABEAT_S_PAD}{\ButtonNext}
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\opt{MROBE100_PAD}{\ButtonDisplay+\ButtonRight}
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\opt{PBELL_VIBE500_PAD}{\ButtonRec+\ButtonRight}
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\opt{MPIO_HD200_PAD}{\ButtonFF}
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\opt{MPIO_HD300_PAD}{\ButtonScrollDown}
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\opt{touchscreen}{\TouchBottomRight}
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\opt{HAVEREMOTEKEYMAP}{& }
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& Next image in directory\\
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\opt{IRIVER_H100_PAD,IAUDIO_X5_PAD}{\ButtonRec}
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\opt{IRIVER_H300_PAD}{\ButtonOn}
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\opt{IPOD_4G_PAD,IPOD_3G_PAD}{\ButtonSelect+\ButtonLeft}
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\opt{IRIVER_H10_PAD,SAMSUNG_YH92X_PAD,SAMSUNG_YH820_PAD}{\ButtonRew}
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\opt{SANSA_E200_PAD,SANSA_FUZE_PAD}{\ButtonScrollBack}
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\opt{SANSA_C200_PAD,SANSA_CLIP_PAD}{\ButtonVolDown}
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\opt{SANSA_FUZEPLUS_PAD}{\ButtonBottomLeft}
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\opt{GIGABEAT_PAD}{\ButtonA+\ButtonLeft}
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\opt{GIGABEAT_S_PAD}{\ButtonPrev}
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\opt{MROBE100_PAD}{\ButtonDisplay+\ButtonLeft}
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\opt{PBELL_VIBE500_PAD}{\ButtonRec+\ButtonLeft}
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\opt{MPIO_HD200_PAD}{\ButtonRew}
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\opt{MPIO_HD300_PAD}{\ButtonScrollUp}
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\opt{touchscreen}{\TouchBottomLeft}
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\opt{HAVEREMOTEKEYMAP}{& }
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& Previous image in directory\\
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\opt{SANSA_E200_PAD,SANSA_C200_PAD,SANSA_CLIP_PAD,SANSA_FUZEPLUS_PAD%
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,SAMSUNG_YH92X_PAD,SAMSUNG_YH820_PAD}{%currently only defined for the sansa pads and samsung yh*
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\opt{SANSA_E200_PAD,SANSA_C200_PAD}{\ButtonRec}
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\opt{SANSA_CLIP_PAD}{\ButtonHome}
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\opt{SANSA_FUZEPLUS_PAD}{\ButtonPlay}
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\opt{SAMSUNG_YH92X_PAD}{\ButtonRec\ switch}
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\opt{SAMSUNG_YH820_PAD}{Long \ButtonPlay}
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\opt{HAVEREMOTEKEYMAP}{& }
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& Toggle slide show mode\\
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}
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\opt{IRIVER_H100_PAD,IRIVER_H300_PAD}{\ButtonOff}
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\opt{IPOD_4G_PAD,IPOD_3G_PAD}{Long \ButtonSelect}
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\opt{IAUDIO_X5_PAD,IRIVER_H10_PAD,SANSA_E200_PAD,SANSA_C200_PAD,SANSA_CLIP_PAD}{\ButtonPower}
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\opt{SANSA_FUZE_PAD}{Long \ButtonHome}
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\opt{GIGABEAT_PAD,GIGABEAT_S_PAD,MROBE100_PAD,PBELL_VIBE500_PAD}{\ButtonMenu}
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\opt{MPIO_HD200_PAD}{\ButtonFunc}
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\opt{MPIO_HD300_PAD}{\ButtonEnter}
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\opt{touchscreen}{\TouchCenter}
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\opt{SANSA_FUZEPLUS_PAD}{\ButtonSelect}
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\opt{SAMSUNG_YH92X_PAD,SAMSUNG_YH820_PAD}{\ButtonPlay}
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\opt{HAVEREMOTEKEYMAP}{&
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\opt{IRIVER_RC_H100_PAD}{\ButtonRCStop}
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}
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& Show menu / Abort \\
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\opt{IPOD_4G_PAD,IPOD_3G_PAD,GIGABEAT_PAD,GIGABEAT_S_PAD,MROBE100_PAD,PBELL_VIBE500_PAD%
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,SAMSUNG_YH820_PAD}{
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\opt{IPOD_4G_PAD,IPOD_3G_PAD}{\ButtonSelect}
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\opt{GIGABEAT_PAD,MROBE100_PAD}{\ButtonPower}
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\opt{GIGABEAT_S_PAD}{\ButtonBack}
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\opt{PBELL_VIBE500_PAD}{\ButtonCancel}
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\opt{MPIO_HD200_PAD}{\ButtonRec + \ButtonPlay}
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\opt{MPIO_HD300_PAD}{Long \ButtonMenu}
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\opt{SANSA_FUZEPLUS_PAD}{\ButtonBack}
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\opt{SAMSUNG_YH820_PAD}{\ButtonRec+\ButtonPlay}
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\opt{HAVEREMOTEKEYMAP}{& }
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& Quit the viewer \\
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}
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\end{btnmap}
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The menu has the following entries.
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\begin{description}
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\item[Return.] Returns you to the image
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\item[Toggle Slideshow Mode.] Enables or disables the slideshow mode.
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\item[Change Slideshow Timeout.] You can set the timeout for the slideshow
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between 1 second and 20 seconds.
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\opt{large_plugin_buffer}{
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\item[Show Playback Menu.] From the playback menu you can control the
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playback of the currently loaded playlist and change the volume of your \dap.
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}
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\opt{lcd_color}{
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\item[Display Options.] From this menu you can force the viewer to render the
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image in greyscale using the \setting{Greyscale} option or set the method of
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dithering used in the \setting{Dithering} submenu. These settings only take effect
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for JPEG images.
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}
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\item[Quit.] Quits the viewer and returns to the \setting{File Browser}.
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\end{description}
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\note{
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\opt{lcd_color}{Progressive scan is supported. Unsupported JPEG files}
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\nopt{lcd_color}{Progressive scan and other unusual JPEG files are not supported, and} will
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result in various ``unsupported xx'' messages. Processing could also fail if the
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image is too big to decode which will be explained by a respective message.
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\opt{lcd_color}{
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Supported PPM files are both ASCII PPM (P3) and raw PPM (P6).
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For more information about PPM files, see
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\url{http://netpbm.sourceforge.net/doc/ppm.html}
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}
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}
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