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imageviewer: Initial support for JPEG progressive images. Add decoder

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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
This commit is contained in:
Roman Artiukhin 2024-10-09 19:39:15 +03:00 • committed by Solomon Peachy
parent 64ad7354b6
commit b8238f7b20
19 changed files with 599 additions and 22 deletions
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5
apps/plugins/imageviewer/image_decoder.c
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@ -25,12 +25,13 @@
static const char *decoder_names[MAX_IMAGE_TYPES] = {
"bmp",
"jpeg",
"jpeg", // Default decoder for jpeg: Use jpeg for old decoder, jpegp for new
"png",
#ifdef HAVE_LCD_COLOR
"ppm",
#endif
"gif"
"gif",
"jpegp",
};
/* Check file type by magic number or file extension