forked from len0rd/rockbox
baa070cca6
This enables the ability to allocate (and free) memory dynamically without fragmentation, through compaction. This means allocations can move and fragmentation be reduced. Most changes are preparing Rockbox for this, which many times means adding a move callback which can temporarily disable movement when the corresponding code is in a critical section. For now, the audio buffer allocation has a central role, because it's the one having allocated most. This buffer is able to shrink itself, for which it needs to stop playback for a very short moment. For this, audio_buffer_available() returns the size of the audio buffer which can possibly be used by other allocations because the audio buffer can shrink. lastfm scrobbling and timestretch can now be toggled at runtime without requiring a reboot. git-svn-id: svn://svn.rockbox.org/rockbox/trunk@30381 a1c6a512-1295-4272-9138-f99709370657 |
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| .. | ||
| bmp | ||
| jpeg | ||
| png | ||
| ppm | ||
| image_decoder.c | ||
| image_decoder.h | ||
| imageviewer.c | ||
| imageviewer.h | ||
| imageviewer.make | ||
| imageviewer_button.h | ||
| readme.txt | ||
| SOURCES | ||
| SUBDIRS | ||
this document describes how to add new image decoder. 1. create a directory which name is your image decoder's name and put source files under the directory. 'const struct image_decoder image_decoder' and 'IMGDEC_HEADER' must be declared in one of your source files. see imageviewer.h for the detail of struct image_decoder. 2. add the directory name to apps/plugins/imageviewer/SUBDIR so that the decoder is built. if the decoder is supported by particular targets, surround it with #if directive. e.g. if the decoder supports color LCD targets only, #ifdef HAVE_LCD_COLOR bmp #endif 3. append appropriate entry to enum image_type in image_decoder.h, decoder_names and ext_list in image_decoder.c so that the imageviewer plugin can recognize the decoder. if the decoder is supported by particular targets, surround them with same #if directive in SUBDIR. 4. add entry to apps/plugins/viewers.config (in format: file_extension,viewer/imageviewer) so that the file with specified file extension will be opened by image viewer plugin. if the decoder is supported by particular targets, surround it with same #if directive in SUBDIR. 5. add entry to apps/plugins/CATEGORIES (in format: decoder_name,viewer) so that the build file is copied to viewers directory. DON'T surround this with #if directive. notes: if you need to use greylib functions to draw image, add the functions to struct imgdec_api just like gray_bitmap_part because GREY_INFO_STRUCT is declared in imageviewer and is not available from the decoder.