85 Commits (master)

Author SHA1 Message Date
Sean Barrett c4bbb6e75f stb_image_resize2.h 2.00 ago%!(EXTRA string=2 years)
Sean Barrett a0b521fcf2 no warnings when compiling /W3 ago%!(EXTRA string=6 years)
Jorge Rodriguez a99bc0ca32 Fix a bunch of warnings under Apple's clang-800.0.42.1 ago%!(EXTRA string=8 years)
Sean Barrett 4ff6723a6d make resample_test work in VC6 ago%!(EXTRA string=9 years)
Jorge Rodriguez 831b2d2fa6 Fix a merge gone wrong, add some more test cases. ago%!(EXTRA string=10 years)
Jorge Rodriguez a1ef3a1060 Fix the calculation of the input image shift when using subpixel regions ago%!(EXTRA string=10 years)
Jorge Rodriguez cf6f69cdc9 Fix the calculation of the input image shift when using subpixel regions. Includes some more tests which had incorrect results before and now work fine. ago%!(EXTRA string=10 years)
Sean Barrett 0fc13e997b optimization attempts, no meaningful changes ago%!(EXTRA string=11 years)
Jorge Rodriguez cbf5ebbd35 Install ryg's float -> uint8 sRGB conversion code, which is much faster. ago%!(EXTRA string=11 years)
Jorge Rodriguez 600d80387e Make a guess at the value before doing the binary search, cuts the number of conditionals by half. Not as much gain as I hoped but something. ago%!(EXTRA string=11 years)
Sean Barrett dd28033b34 don't encode alpha channel twice when alpha is different colorspace from other channels ago%!(EXTRA string=11 years)
Sean Barrett 9f66b441bd new quickstart docs; ago%!(EXTRA string=11 years)
Jorge Rodriguez f0ba7f5f7e Get rid of old perf tests. ago%!(EXTRA string=11 years)
Sean Barrett f711fdcb0f disable performance test in test code, back to regression test path ago%!(EXTRA string=11 years)
Sean Barrett 9a6af9a8d3 replace int(floor()) with int(), since that produces same results for non-negative values and is much faster on 32-bit x86 ago%!(EXTRA string=11 years)
Sean Barrett 1dcca19ae0 because of we divide by /255 not /256, we lose numerical precision, so can't guarantee that box filter results round to same results as naive ago%!(EXTRA string=11 years)
Sean Barrett 972456cb63 explicit performance tests variants ago%!(EXTRA string=11 years)
Sean Barrett c9600c012f unroll channel loops in downsampler ago%!(EXTRA string=11 years)
Sean Barrett 0fa5b5c66f rename cubic to cubicbspline; ago%!(EXTRA string=11 years)
Sean Barrett 29b36b3dea rename filters, document them ago%!(EXTRA string=11 years)
Sean Barrett da2aa8f6b7 checkboard test to verify srgb ago%!(EXTRA string=11 years)
Sean Barrett a9778b8dbd tweak docs; fix compile error in UNUSED_PARAM stuff ago%!(EXTRA string=11 years)
Sean Barrett 7a4f1f4665 update with new tests for srgb conversion ago%!(EXTRA string=11 years)
Sean Barrett 16d68d14f8 fix stbir__linear_to_srgb_uchar: ago%!(EXTRA string=11 years)
Sean Barrett 30c7a981ec compile as C; ago%!(EXTRA string=11 years)
Jorge Rodriguez 953a637841 Use a carefully shaped trapezoid instead of a box filter to avoid jumps between pixel values. ago%!(EXTRA string=11 years)
Sean Barrett 4e580cf9ed fix compile ago%!(EXTRA string=11 years)
Jorge Rodriguez c9d67446d2 Reverse allocation routines parameter order so that the context is at the back. ago%!(EXTRA string=11 years)
Jorge Rodriguez 41e6aad693 Avoid repeated adds and ensure correct round-trip result. ago%!(EXTRA string=11 years)
Jorge Rodriguez 969ff7c850 Make sure calculate_memory matches with the allocations. Fix some errant asserts. ago%!(EXTRA string=11 years)
Jorge Rodriguez 4b69c0637e If alpha is zero then sneakily replace it with a very small nonzero so that the color data is preserved. ago%!(EXTRA string=11 years)
Jorge Rodriguez 084baed15c Replace premul test with better premul test that doesn't require visual inspection. ago%!(EXTRA string=11 years)
Jorge Rodriguez 497eab8339 Normalize downsample coefficients. ago%!(EXTRA string=11 years)
Jorge Rodriguez 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)
Jorge Rodriguez ca241daefa Use rounding to try to preserve the original value. Fix test case. ago%!(EXTRA string=11 years)
Jorge Rodriguez 118f28557e Tests to ensure images of a solid color stay the same solid color after resampling. ago%!(EXTRA string=11 years)
Jorge Rodriguez e6c47ec657 Fix kernel lookup for downsampling. ago%!(EXTRA string=11 years)
Jorge Rodriguez 8cc6a3abfc If there's no context we're using the simple API functions - fall back to malloc and free. ago%!(EXTRA string=11 years)
Sean Barrett 36db03f390 tighten bounds on filter normalization test ago%!(EXTRA string=11 years)
Sean Barrett 7f8ac35e42 check whether filter kernels are normalized ago%!(EXTRA string=11 years)
Sean Barrett 7da729bfce restore correct definition of box ago%!(EXTRA string=11 years)
Sean Barrett cd1fbacbb6 rename NEAREST to BOX ago%!(EXTRA string=11 years)
Jorge Rodriguez 586e84087c Correctly specify alpha channels. ago%!(EXTRA string=11 years)
Jorge Rodriguez 38ce5494bc Clarify some comments. Make stbir__resize_arbitrary an internal function. Update test cases to use actual API functions. ago%!(EXTRA string=11 years)
Sean Barrett 41555b5d53 update test cases to work on things other than barbara.png ago%!(EXTRA string=11 years)
Jorge Rodriguez fb059fcece Progress report. ago%!(EXTRA string=11 years)
Jorge Rodriguez 75bdd2da83 Fix malloc context and whitespace. ago%!(EXTRA string=11 years)
Sean Barrett aee30095c7 refactor internal interfaces to avoid passing things multiple times; ago%!(EXTRA string=11 years)
Sean Barrett 732fec68ee tweak new API, get it partly working ago%!(EXTRA string=11 years)
Sean Barrett 664d8961f5 new API partially in-use ago%!(EXTRA string=11 years)