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41dc4c476c
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In some situations with certain filter kernels with negative values it's possible to generate valid results > 1.0, so saturate it before we write it to make sure it doesn't overflow. Also fix incorrect filter radius while downsampling.
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2014-07-26 22:49:56 -07:00 |
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af1ed58f51
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Add wrap, fix reflect so it doesn't wrap.
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2014-07-26 19:30:13 -07:00 |
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8723567439
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Add edge reflect mode.
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2014-07-26 19:11:02 -07:00 |
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6cd81d4dd5
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Put the polynomials in horner form to save a multiplication.
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2014-07-26 15:36:15 -07:00 |
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fb2f8df5cc
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Add mitchell filter.
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2014-07-26 15:06:31 -07:00 |
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69af963c42
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Add catmull rom filter. Also, move the debug asserts for values <= 1 to the very end of the process. This will make these bugs a lot harder to find, but because some filter kernels have negative values it's possible for the buffers to have values > 1 up until the point where it's converted back to an int.
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2014-07-26 14:52:28 -07:00 |
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12acf87eec
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When downsampling start the buffer loop at -filter_texel_margin to make sure that all contributors get their taps in at the ring buffer.
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2014-07-26 13:56:23 -07:00 |
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155c71fb90
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Reorder these loops because I think we get a cache win if we write the entire ring buffer entry at once.
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2014-07-26 13:12:48 -07:00 |
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01fb58d6b4
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Add a bicubic filter.
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2014-07-26 13:07:04 -07:00 |
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a95da9ee1d
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Unroll the multiply-add loops. At the cost of a function pointer dereference we get a whole lot of conditionals eliminated. Should be a solid win once the debug asserts are gone.
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2014-07-26 12:04:39 -07:00 |
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7abd4ccf34
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Support for filters with larger support. Initial support for edge behavior.
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2014-07-26 11:51:02 -07:00 |
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62ff271c7a
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I put it in the to do list and now I can close my browser tab.
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2014-07-25 00:08:23 -07:00 |
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81c1ddf110
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Keeping a list of suggestions so I don't forget them.
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2014-07-25 00:00:40 -07:00 |
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27926e78b8
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Make consistent tests for whether we're doing upsampling or downsampling of width and height. Don't request memory for horizontal buffer or encode buffer if we don't need it.
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2014-07-24 23:50:14 -07:00 |
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666c025710
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Fix non uniform scaling where out_w < in_w && out_h > in_h.
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2014-07-24 23:32:25 -07:00 |
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736596ba09
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Fix non uniform scaling where out_w > in_w && out_h < in_h.
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2014-07-24 23:27:29 -07:00 |
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178e301ea4
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Fix upsampling, avoid dereferencing in an inner loop.
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2014-07-24 22:54:35 -07:00 |
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dbb7480f12
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Fix nonuniform downsampling.
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2014-07-24 22:30:35 -07:00 |
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fa69bc8551
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Basic downsampling algorithm works for uniform sampling.
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2014-07-24 22:09:08 -07:00 |
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297266b27b
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Starting to implement downsampling.
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2014-07-24 19:10:45 -07:00 |
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7d8faf5727
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Remove unused functions.
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2014-07-24 15:02:54 -07:00 |
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8ac052ac8a
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Avoid gaps between box filter kernels.
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2014-07-24 15:02:39 -07:00 |
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9e726bb3e4
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The vertical resampling pass. Now all elements of the upscale algorithm are in place.
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2014-07-24 14:20:18 -07:00 |
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152965f334
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Decode enough scanlines into a ring buffer to make sure that we have enough source scanlines to do a vertical sampling.
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2014-07-24 01:04:22 -07:00 |
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158effb62a
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More accurate names. Smaller size for contributors memory, more accurate to what's needed.
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2014-07-23 23:08:06 -07:00 |
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855fb207be
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Merge remote-tracking branch 'remotes/nothings/master'
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2014-07-23 22:24:59 -07:00 |
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55c5f0b3a0
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Beginning of a more sophisticated resample algorithm, starting with calculating filter contributions per scan line.
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2014-07-23 22:17:56 -07:00 |
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ee8e926317
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even more resampling notes
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2014-07-22 12:45:24 -07:00 |
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92b08aa98a
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more resampling notes
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2014-07-22 12:39:29 -07:00 |
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6f779fb67a
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whoops imageresampler link
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2014-07-22 12:17:43 -07:00 |
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9c9a68787d
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imageresampler library reference
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2014-07-22 12:16:11 -07:00 |
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3e8a89cad1
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more resampler notes
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2014-07-22 11:57:46 -07:00 |
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c27ccec436
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resampler prototypes
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2014-07-22 11:37:54 -07:00 |
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63cce5c70a
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created stb_resample_ideas.txt
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2014-07-22 10:05:01 -07:00 |
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0155bd3ab6
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We are going to support SRGB.
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2014-07-21 19:51:11 -07:00 |
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ba861fa493
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Allow specifying a stride.
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2014-07-21 18:01:05 -07:00 |
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06b7b00696
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It does nothing now but I want to support edge behavior in the future.
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2014-07-21 16:14:32 -07:00 |
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c27c5b6fbe
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There's really no point in returning the output buffer.
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2014-07-21 15:36:43 -07:00 |
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d54e74092e
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stb_resample initial implementation
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2014-07-21 00:16:03 -07:00 |
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bcefca10f7
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fix bad fix in previous fix
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2014-07-15 22:26:01 -07:00 |
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75b9e9cc1b
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update stb_image version number
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2014-07-09 23:45:58 -07:00 |
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b2cbed2634
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Merge branch 'working'
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2014-07-09 23:44:48 -07:00 |
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1eb665906e
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cdecl fixes
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2014-07-09 23:41:40 -07:00 |
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68b5ec9392
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fix cdecl
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2014-07-09 23:39:00 -07:00 |
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e0d86b0f5c
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STBI_ASSERT
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2014-07-09 23:35:25 -07:00 |
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3bf91543f4
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revert img_n=0 initialization to original location
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2014-07-09 23:26:03 -07:00 |
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a2b9aa8d06
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modifiy jpeg img_n fix
switch from fopen to fopen_s on later MSVCs
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2014-07-09 23:23:48 -07:00 |
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70de0adb28
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Merge branch 'master' of https://github.com/LysanderGG/stb into working
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2014-07-09 23:03:32 -07:00 |
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932d485146
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fix warnings in certain console compilers
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2014-07-09 23:01:29 -07:00 |
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efd6b2698f
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Fix crash when trying to load progressive jpeg due to uninitialized s->img_n
Proper pointer check before deleting
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2014-07-09 22:41:22 +09:00 |
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