Edit Infobox GBA Homebrews: GBA Jpeg Viewer

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{{#seo: |title= (Other apps) - GameBrew |title_mode=append |image=gbajpegviewer2.png |image_alt=GBA Jpeg Viewer }} GBA Jpeg Viewer is a tool to display Jpeg pictures on your Game Boy Advance. ==Features== * For both GBA and GBA SP. * Display JPEG pictures in a slide-show fashion. * Play background music. *[http://www.caimans.net/gba/GJVUses.html 101 smart uses]. ==Installation== Run the GBAJpegPacker included in the zip file. Open or drop the pictures in the list box and press the Create GBA rom... button. ==Controls== '''Image viewer:''' L/R - Browse the pictures of your slideshow A+L/R - Skip 10 pictures B+L+R - Skip 100 pictures A+B - Jump to a random picture Start+Select - Reset or to exit to Pogoshell Select - Bring up a simple help screen Start+R - Start slideshow mode Start+L - Switch to thumbnails mode '''Thumbnails mode:''' D-Pad - Move cursor, Scroll image (zoom) L/R - Skip a page A - Delect a picture A+Up/Down - Adjust brightness A+Right - Zoom zoomable pictures A+Left - Bring up the options panel ==Screenshots== https://dlhb.gamebrew.org/gbahomebrews/gbajpegviewer3.png https://dlhb.gamebrew.org/gbahomebrews/gbajpegviewer4.png https://dlhb.gamebrew.org/gbahomebrews/gbajpegviewer5.png https://dlhb.gamebrew.org/gbahomebrews/gbajpegviewer6.png ==Compatibility== The GBA rom can be loaded by a GBA emulator like Visual Boy Advance or a real Gameboy Advance using a flash2advance or a similar backup tool. Note that the rom lacks all the standard copyright and crc infos of Nintendo, and so it's not recognized by GBA as a valid rom. If you are running it on a real console you should use a loader or the [[PogoShell GBA|Pogoshell]]. ==Changelog== '''V3.0''' In Packer: *Switched to jpeglib: Improved Jpeg Packing. *Headers are automatically fixed with gbarm, now GBA Jpeg Viewer should work with all flashcarts. *Rewrote Bilinear and Bicubic resize, now they are up to four times faster. In Viewer: *Can play background music. It sounds crazy to me too, but so many peopole asked for this feature that I had to add it. *Slighlty Faster jpeg decoding. '''V2.5''' *New progressive mode: Pictures are drawn in 2 passes. Please note that this feature simulates progressive jpegs but real progressive jpegs are not supported by GBA Jpeg Viewer. *20% Faster Jpeg decoding. *Added Options screen: Lets you mess with some basic aspects of the viewer. *Changes are now saved to SRAM. VERSION 2.4 *Better Jpeg packing (smaller files at the same quality). *Faster Jpeg decoding. *Added a "Back to Pogoshell" function for Pogoshell users (like me). Thanks to Reesy for help. '''V2.3''' *Added a color dithering system: greatly enhanches display quality. *In thumbnail mode more infos on the pictures are shown. *Added pause option in slideshow mode. *New Graphics for menus. *In Jpeg Packer added settings for brightness and contrast. *Slighlty faster jpeg packing. '''V2.2''' -Added Project Load/Save -Added a thumbnail system '''V2.1''' *Support for bigger pictures with zoom/scrolling. *New graphic interface in Viewer. *Some minor changes in Packer. '''V2.0''' New Features: *Brand new Jpeg decoding engine: up to 3 times faster. *Added a password system. *Added a basic area selection option to encode only a part of a picture (useful when encoding comics). *Added a Sharpen/text enhancement option (again:useful for comics). Use carefully because it slightly slows down decompression and increases jpeg size. Bugfixes: *Some minor bugs in png decoding in Jpeg Packer fixed. *Tab order in packer fixed for proud keybord users. '''V1.2''' New Features: *Added a Rom size preview feature in Jpeg packer. *Better quality in Jpeg encoding. *Added a rom options button to specify rom internal name (required by some flash program). *Added a slideshow mode in Jpeg viewer. *Added a nice "about box" in Jpeg packer (based on an idea by Tangor Fopper). *Added dynamic brightness adjustment in Jpeg viewer. *Small pictures are now centered in GBA display. *Jpeg decoding is now 10-15% faster. Bugfixes: *Some nasty buttons sequence freezed Jpeg Packer. '''V1.1''' New Features: *Added "Gamma correction". *Added "Insert pictures" feature, to import pictures at a specific point in the list, first requested by Aghnar Le Bisaieul. *Added "Jump to Random picture", skip +-10 and +-100 pictures. *Added an image counter, first requested by Dermot Mac Flannchaidh. *Added "Reset", first requested by Jim Parask. *Added up and down buttons in GBA Jpeg packer and the ability to remove pictures pressing the "DEL" key, first requested by Phil Holden. *Added a simple help screen. Bugfixes: *Loading many pictures at a time with the add... button instead of drag and drop didn't work well. First reported by Zhao DingAn, Thanks Zhao. '''V1.0''' * First release. ==External links== * Official website - http://www.caimans.net/gba

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