a9778b8dbd
tweak docs; fix compile error in UNUSED_PARAM stuff
ago%!(EXTRA string=11 years)
99f3b78bbd
Merge branch 'resample' of http://github.com/bsvino/stb into resample
ago%!(EXTRA string=11 years)
df128b7995
update STBIR__UNUSED_PARAM to match stb_image.h version
ago%!(EXTRA string=11 years)
ca88b6fba6
Calculate and store vertical contributors first so that they can be normalized and optimized.
ago%!(EXTRA string=11 years)
a25c1d2bbd
Merge remote-tracking branch 'remotes/nothings/resample' into resample
ago%!(EXTRA string=11 years)
36b417f6b4
Optimizations: Skip zero-coefficient contributions. Reduce the size of the coefficients array when downsampling.
ago%!(EXTRA string=11 years)
27f26f8337
Documentation;
...
rename STBIR_FLAG_PREMULTIPLED_ALPHA to STBIR_FLAG_ALPHA_PREMULTIPLIED so that both flags have "ALPHA" first
ago%!(EXTRA string=11 years)
7a4f1f4665
update with new tests for srgb conversion
ago%!(EXTRA string=11 years)
16d68d14f8
fix stbir__linear_to_srgb_uchar:
...
1. table stored threshhold of transition from i to i+1, but wants to be i-1 to i
2. table was computed by dividing uchar by 256.0 instead of 255.0, causing it to be 100% wrong
ago%!(EXTRA string=11 years)
30c7a981ec
compile as C;
...
fix some unsigned/signed comparisons;
avoid round() since it's not in pre-C99 C;
remove MAX_CHANNELS since I never ended up needing it;
rename STBIR_EPSILON to STBIR_ALPHA_EPSILON;
don't use STBIR_ALPHA_EPSILON on float input (can't remove it properly due to numeric precision, and they can do it themselves);
optimize subtraction of STBIR_ALPHA_EPSILON;
sorry i forgot to commit these separately!;
ago%!(EXTRA string=11 years)
1208730e1e
Merge branch 'resample' of http://github.com/bsvino/stb into resample
ago%!(EXTRA string=11 years)
793818d1af
Skip zero-coefficient contributors, a fairly decent speedup.
ago%!(EXTRA string=11 years)
46dc8f84fb
Use vertical pixel width for the ring buffer.
ago%!(EXTRA string=11 years)
953a637841
Use a carefully shaped trapezoid instead of a box filter to avoid jumps between pixel values.
ago%!(EXTRA string=11 years)
671f04bd7e
debugging truetype crash
ago%!(EXTRA string=11 years)
4e580cf9ed
fix compile
ago%!(EXTRA string=11 years)
6922628106
Use an even smaller epsilon. Allow the user to avoid the epsilon business if they want to preserve their alpha values.
ago%!(EXTRA string=11 years)
057f29f813
update version number
ago%!(EXTRA string=11 years)
87b7e3db41
update version number
ago%!(EXTRA string=11 years)
5db8a8bc36
Merge pull request #42 from rygorous/master
...
stb_textedit: Add support for alternative keyboard shortcuts for text/line start/end.
ago%!(EXTRA string=11 years)
40cc1c59b2
Add support for alternative keyboard shortcuts for text/line start/end.
ago%!(EXTRA string=11 years)
c9d67446d2
Reverse allocation routines parameter order so that the context is at the back.
ago%!(EXTRA string=11 years)
17b931047c
Add the epsilon value into the alpha instead of using an if statement. It's a tiny bit faster and it can be removed afterwards.
ago%!(EXTRA string=11 years)
1d5c902e2e
These minor optimizations were probably already done by the compiler but they can't hurt.
ago%!(EXTRA string=11 years)
41e6aad693
Avoid repeated adds and ensure correct round-trip result.
ago%!(EXTRA string=11 years)
f2102d906f
Use the info structure to keep track of our memory block sizes to reduce duplicated code and cut down on errors.
ago%!(EXTRA string=11 years)
969ff7c850
Make sure calculate_memory matches with the allocations. Fix some errant asserts.
ago%!(EXTRA string=11 years)
8355ea1184
Use height, not width, for correct progress report.
ago%!(EXTRA string=11 years)
4b69c0637e
If alpha is zero then sneakily replace it with a very small nonzero so that the color data is preserved.
...
Pre-process n1 so that we don't have to do it later on. Can't do n0 since it's used to find the coefficient index.
ago%!(EXTRA string=11 years)
d510d70b6a
Report downsample progress by when we empty the ring buffer, it's more accurate that way.
ago%!(EXTRA string=11 years)
084baed15c
Replace premul test with better premul test that doesn't require visual inspection.
ago%!(EXTRA string=11 years)
497eab8339
Normalize downsample coefficients.
ago%!(EXTRA string=11 years)
43fbc1d5e3
Rearrange the algebra on two of the filters to avoid repeating decimals which cause precision loss. Use int32 to test filters because it's more accurate.
ago%!(EXTRA string=11 years)
ca241daefa
Use rounding to try to preserve the original value. Fix test case.
ago%!(EXTRA string=11 years)
145690788c
Use input_h + pixel_margin * 2 to prevent progress report from ever going above 1. Always report a 0 before and a 1 at the end of each resize.
ago%!(EXTRA string=11 years)
fb8eabd6b8
Add .hdr file writing support
ago%!(EXTRA string=11 years)
118f28557e
Tests to ensure images of a solid color stay the same solid color after resampling.
ago%!(EXTRA string=11 years)
e6c47ec657
Fix kernel lookup for downsampling.
ago%!(EXTRA string=11 years)
8cc6a3abfc
If there's no context we're using the simple API functions - fall back to malloc and free.
ago%!(EXTRA string=11 years)
36db03f390
tighten bounds on filter normalization test
ago%!(EXTRA string=11 years)
7f8ac35e42
check whether filter kernels are normalized
ago%!(EXTRA string=11 years)
7da729bfce
restore correct definition of box
ago%!(EXTRA string=11 years)
08ca345839
Merge branch 'resample2' into resample
ago%!(EXTRA string=11 years)
cd1fbacbb6
rename NEAREST to BOX
...
write test for BOX
ago%!(EXTRA string=11 years)
8e91cb2b7d
treat vertical tab and form feed characters as whitespace
ago%!(EXTRA string=11 years)
e003c66498
support PGM and PPM formats
ago%!(EXTRA string=11 years)
586e84087c
Correctly specify alpha channels.
ago%!(EXTRA string=11 years)
38ce5494bc
Clarify some comments. Make stbir__resize_arbitrary an internal function. Update test cases to use actual API functions.
ago%!(EXTRA string=11 years)
41555b5d53
update test cases to work on things other than barbara.png
ago%!(EXTRA string=11 years)
fb059fcece
Progress report.
ago%!(EXTRA string=11 years)
Sean Barrett
Jorge Rodriguez
Fabian Giesen
baldurk
Ken Miller