ico files were defined to have bmp's in each key - in fact a subset of
them. unbenknownst to yours truly, vista now allows them to also be
pngs and thus the ico loader rejects them as corrupt. at least detect
it and complain right now
The TGV loader is an Evas_Loader, not part of evas itself
(eg. in cserve), so we can't use evas functions from there.
eina_cpu provides appropriate CPU features detection.
Save images with alpha in two planes:
- RGB data as ETC1
- Alpha as ETC1 (from a greyscale image)
The second plane alpha is located right after the RGB plane.
The RGBA data is not premultiplied, so that RGB can be encoded
at a better quality in ETC1. This should avoid some blockiness
artifacts that we can see in the current ETC2 mode (which supports
alpha natively). Eventually ETC2 should also support non
premultiplied data for a better encoding quality.
This patch implements the saver and the loader.
@feature
Summary:
90 or 270 degree rotation is not working properly
width should be regarded as height, and vice versa.
if this patch and D1082 were commited, rotation from metadata will be working properly by using evas_object_image_load_orientation_set()
@fix
Test Plan: add image object and invoke evas_object_image_load_orientation_set() -> load file with orientation metadata -> check whether image is rotated properly or not
Reviewers: raster, cedric, jpeg
CC: seoz, cedric
Differential Revision: https://phab.enlightenment.org/D1084
Signed-off-by: Cedric Bail <cedric.bail@free.fr>
We prefer ETC2 textures when ETC2 support has been detected.
According to the spec, glCompressedTexSubImage2D should work
for ETC2.
Try even with ETC1. This may fail at runtime. The fallback path
is very dubious right now but without a proper test case I'm
not sure which approach to take.
We can also imagine cases where the GPU supports TexSubImage for
ETC1 but ETC2 is not supported at all. This will need testing, as
this case is not handled.
@feature
There is an ifdef HAVE_ETC2_DECODER to disable unimplemented code.
Since these ETC2 decoding function are not implemented yet,
they should be disabled at compile time.
Yes, this means Evas will not be able to load those images in case
of SW engine or GL engine w/o ETC2 support.
@feature
Gif decoder decodes prior frames sequentially to decode a specific frame.
The last frame of sequential decoding, which is the frame we want to decode,
remains un-decoded until the while loop stops.
The frame count should be incremented after the comparison statement.
this fixes the png loader code to use png_read_row properly with the
number of passes needed to load aninterlaced image as well as handling
this right with scale ratio scaledown set.
If region is specified we will not allow ETC1 colorspace as it would
basically break at the frontier as we would be unable to generate a
duplicate of the border as GPU require if you want nice and correct
rendering. So no region and ETC1 output at the same time.
The TGV file format is specifically created for Evas. It is designed to allow
region decompression and parallele decompression with a fast path for GPU that
do handle ETC1 compression. Plan for adding other compression method will come
later.
This looks like a typo: if (animated > 1) when animated is a... Bool!
So, I am not entirely sure why this bug is visible in case of gif
proxies, all it seems that the load_data function may be called
multiple times when the object is visible. So gif close and reopen
happen properly, and the first frame can be decoded.
stable release - cherry-pick me!
the evas gif loader used way too much cpu to decode animated gifs
because in the rewrite that made it correct, it did not store the
current gif file handle and state, thus each frame it would have to
decode all frames before that one before finally decoding the final
one. that means to decode frame 200, it decoded frame 1, 2, 3, 4 etc.
all the way up to 199 THEN decoded 200 on top, so decode cost became
progressively more then further through the animation you were.
this fixes that by storing state and file handle and allowing you to
iterate through.
Carsten Haitzler
Jean-Philippe Andre
Wonguk Jeong
ChunEon Park
Doug Newgard
Jérémy Zurcher
Jaeun Choi
Cedric Bail
Cedric BAIL
Guillaume Friloux