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path: root/src/core/SkColorSpaceXform.cpp
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* Flush denorm half floats to zero.Gravatar mtklein2016-08-22
| | | | | | | | | | | | | | | | | | I think we convinced ourselves that denorms, while a good chunk of half floats, cover a rather small fraction of the representable range, which is always close enough to zero to flush. This makes both paths of the conversion to or from float considerably simpler. These functions now work for zero-or-normal half floats (excluding infinite, NaN). I'm not aware of a term for this class so I've called them "ordinary". A handful of GMs and SKPs draw differently in --config f16, but all imperceptibly. BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2256023002 Review-Url: https://codereview.chromium.org/2256023002
* Optimize color xforms when src and dst are matchingGravatar msarett2016-08-15
| | | | | | | | | | | | | | | Useful when: (1) Client does not realize src and dst match (calls color xform anyway). (2) Client wants half floats, src and dst have matching gamuts (3) Client wants premul (done correctly in linear space), src and dst have matching gamuts. BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2206403003 Review-Url: https://codereview.chromium.org/2206403003
* Perform color correction on png decodesGravatar msarett2016-08-03
| | | | | | | | BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2184543003 CQ_INCLUDE_TRYBOTS=master.client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot Review-Url: https://codereview.chromium.org/2184543003
* Refactor of SkColorSpaceXformOptsGravatar msarett2016-08-02
| | | | | | | | | | | | | | | | | (1) Performance is better or stays the same. (2) Code is split into functions (RasterPipeline-ish design). IMO, it's not really more or less readable. But I think it's now much easier add capabilities, apply optimizations, or do more refactors. Or to actually use RasterPipeline. I help back from trying any of these to try to keep this CL sane. BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2194303002 CQ_INCLUDE_TRYBOTS=master.client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot Review-Url: https://codereview.chromium.org/2194303002
* Fix various SkColorSpace bugsGravatar msarett2016-07-29
| | | | | | | | | | (1) Fixes serialization/deserialization of wacky SkColorSpaces (2) Fix gamma equals checking BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2194903002 Review-Url: https://codereview.chromium.org/2194903002
* Add color space xform support to SkJpegCodec (includes F16!)Gravatar msarett2016-07-29
| | | | | | | | | | | | | | | | | Also changes SkColorXform to support: RGBA->RGBA RGBA->BGRA Instead of: RGBA->SkPMColor TBR=reed@google.com BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2174493002 CQ_INCLUDE_TRYBOTS=master.client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot Committed: https://skia.googlesource.com/skia/+/73d55332e2846dd05e9efdaa2f017bcc3872884b Review-Url: https://codereview.chromium.org/2174493002
* Revert of Add color space xform support to SkJpegCodec (includes F16!) ↵Gravatar msarett2016-07-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (patchset #9 id:260001 of https://codereview.chromium.org/2174493002/ ) Reason for revert: Breaking MSAN Original issue's description: > Add color space xform support to SkJpegCodec (includes F16!) > > Also changes SkColorXform to support: > RGBA->RGBA > RGBA->BGRA > > Instead of: > RGBA->SkPMColor > > TBR=reed@google.com > BUG=skia: > GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2174493002 > CQ_INCLUDE_TRYBOTS=master.client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot > > Committed: https://skia.googlesource.com/skia/+/73d55332e2846dd05e9efdaa2f017bcc3872884b TBR=mtklein@google.com,reed@google.com,herb@google.com,brianosman@google.com # Skipping CQ checks because original CL landed less than 1 days ago. NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true BUG=skia: Review-Url: https://codereview.chromium.org/2195523002
* Add color space xform support to SkJpegCodec (includes F16!)Gravatar msarett2016-07-28
| | | | | | | | | | | | | | | | Also changes SkColorXform to support: RGBA->RGBA RGBA->BGRA Instead of: RGBA->SkPMColor TBR=reed@google.com BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2174493002 CQ_INCLUDE_TRYBOTS=master.client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot Review-Url: https://codereview.chromium.org/2174493002
* Delete SkDefaultXform, handle edge cases in SkColorSpaceXform_BaseGravatar msarett2016-07-25
| | | | | | | | | | | | | | | | | | | | | | | | | "Edge" cases include: (1) Matrices with translation (2) colorLUTs Performance on HP z620: 201295.jpg to2Dot2: 386us -> 414us toSRGB: 346us -> 371us toHalf: 282us -> 302us strange0-translate.jpg toSRGB: 1060us -> 244us strange1-colorLUT.jpg toSRGB: 2.74ms -> 2.00ms BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2177173003 CQ_INCLUDE_TRYBOTS=master.client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot Review-Url: https://codereview.chromium.org/2177173003
* Miscellaneous color space refactorsGravatar msarett2016-07-21
| | | | | | | | | | | | | | | | (1) Use float matrix[16] everywhere (enables future code sharing). (2) SkColorLookUpTable refactors *** Store in a single allocation (like SkGammas) *** Eliminate fOutputChannels (we always require 3, and probably always will) (3) Change names of read_big_endian_* helpers BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2166093003 CQ_INCLUDE_TRYBOTS=master.client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot Review-Url: https://codereview.chromium.org/2166093003
* Refactor parsing and storage of SkGammasGravatar msarett2016-07-21
| | | | | | | | | | | | | | | | | Benefits: (1) Parses and stores gamma tags in a single allocation. (2) Recognizes equal gamma tags to skip parsing work and save memory. Non-Benefits: (1) Not less complicated. BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2117773002 Committed: https://skia.googlesource.com/skia/+/2ea944c2b710caf29d4795ac953bad14224796f7 Committed: https://skia.googlesource.com/skia/+/959ccc1f3f49e1ddeb51c32c30ac4a2d94653856 Review-Url: https://codereview.chromium.org/2117773002
* Revert of Refactor parsing and storage of SkGammas (patchset #8 id:280001 of ↵Gravatar msarett2016-07-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | https://codereview.chromium.org/2117773002/ ) Reason for revert: Tests failing Original issue's description: > Refactor parsing and storage of SkGammas > > Benefits: > (1) Parses and stores gamma tags in a single allocation. > (2) Recognizes equal gamma tags to skip parsing work and > save memory. > > Non-Benefits: > (1) Not less complicated. > > BUG=skia: > GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2117773002 > > Committed: https://skia.googlesource.com/skia/+/2ea944c2b710caf29d4795ac953bad14224796f7 > Committed: https://skia.googlesource.com/skia/+/959ccc1f3f49e1ddeb51c32c30ac4a2d94653856 TBR=reed@google.com,brianosman@google.com,mtklein@google.com # Skipping CQ checks because original CL landed less than 1 days ago. NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true BUG=skia: Review-Url: https://codereview.chromium.org/2171623002
* Refactor parsing and storage of SkGammasGravatar msarett2016-07-20
| | | | | | | | | | | | | | | | Benefits: (1) Parses and stores gamma tags in a single allocation. (2) Recognizes equal gamma tags to skip parsing work and save memory. Non-Benefits: (1) Not less complicated. BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2117773002 Committed: https://skia.googlesource.com/skia/+/2ea944c2b710caf29d4795ac953bad14224796f7 Review-Url: https://codereview.chromium.org/2117773002
* Revert of Refactor parsing and storage of SkGammas (patchset #7 id:220001 of ↵Gravatar msarett2016-07-20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | https://codereview.chromium.org/2117773002/ ) Reason for revert: Broken bots. Original issue's description: > Refactor parsing and storage of SkGammas > > Benefits: > (1) Parses and stores gamma tags in a single allocation. > (2) Recognizes equal gamma tags to skip parsing work and > save memory. > > Non-Benefits: > (1) Not less complicated. > > BUG=skia: > GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2117773002 > > Committed: https://skia.googlesource.com/skia/+/2ea944c2b710caf29d4795ac953bad14224796f7 TBR=reed@google.com,brianosman@google.com,mtklein@google.com # Skipping CQ checks because original CL landed less than 1 days ago. NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true BUG=skia: Review-Url: https://codereview.chromium.org/2159253005
* Refactor parsing and storage of SkGammasGravatar msarett2016-07-20
| | | | | | | | | | | | | | | Benefits: (1) Parses and stores gamma tags in a single allocation. (2) Recognizes equal gamma tags to skip parsing work and save memory. Non-Benefits: (1) Not less complicated. BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2117773002 Review-Url: https://codereview.chromium.org/2117773002
* Add capability for SkColorXform to output half floatsGravatar msarett2016-07-15
| | | | | | | | BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2147763002 CQ_INCLUDE_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot;master.client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot Review-Url: https://codereview.chromium.org/2147763002
* Make all color xforms 'fast' (step 1)Gravatar msarett2016-07-11
| | | | | | | | | | | This refactors opt code to handle arbitrary src and dst gammas that are specified by tables. BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2130013002 CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot Review-Url: https://codereview.chromium.org/2130013002
* Move sRGB <-> linear conversion components to their own files.Gravatar mtklein2016-07-08
| | | | | | | | | | | | | | | This makes them a little easier to use outside SkColorXform code. I've added some notes about how best to use them and their eccentricities, and added a test. Ultimately any software sRGB <-> linear conversion should funnel somehow through here. BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2128893002 CQ_EXTRA_TRYBOTS=client.skia.android:Test-Android-GCC-Nexus5-CPU-NEON-Arm7-Release-Trybot;client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot Committed: https://skia.googlesource.com/skia/+/45e58c8807179638980aae8503573b950b844e4c Review-Url: https://codereview.chromium.org/2128893002
* Revert of Move sRGB <-> linear conversion components to their own files. ↵Gravatar mtklein2016-07-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (patchset #5 id:80001 of https://codereview.chromium.org/2128893002/ ) Reason for revert: Monotonicity assert is failing on ARM. (Different rsqrt() and invert() precision?) Will investigate a bit tomorrow... might reland with the test TODO. Original issue's description: > Move sRGB <-> linear conversion components to their own files. > > This makes them a little easier to use outside SkColorXform code. > > I've added some notes about how best to use them and their eccentricities, and added a test. > > Ultimately any software sRGB <-> linear conversion should funnel somehow through here. > > BUG=skia: > GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2128893002 > CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot > > Committed: https://skia.googlesource.com/skia/+/45e58c8807179638980aae8503573b950b844e4c TBR=reed@google.com,msarett@google.com,mtklein@chromium.org # Skipping CQ checks because original CL landed less than 1 days ago. NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true BUG=skia: Review-Url: https://codereview.chromium.org/2131793002
* Move sRGB <-> linear conversion components to their own files.Gravatar mtklein2016-07-07
| | | | | | | | | | | | | | This makes them a little easier to use outside SkColorXform code. I've added some notes about how best to use them and their eccentricities, and added a test. Ultimately any software sRGB <-> linear conversion should funnel somehow through here. BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2128893002 CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot Review-Url: https://codereview.chromium.org/2128893002
* Add support for 3D colorLUTs to SkColorXformGravatar msarett2016-06-23
| | | | | | | BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2097553002 Review-Url: https://codereview.chromium.org/2097553002
* Use a table-based implementation of SkDefaultXformGravatar msarett2016-06-22
| | | | | | | | BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2084673002 CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot Review-Url: https://codereview.chromium.org/2084673002
* Support sRGB dsts in opt codeGravatar msarett2016-06-20
| | | | | | | | | | | | | | | 201295.jpg on HP z620 (300x280) QCMS Xform 0.418 ms Skia NEW Xform 0.378 ms Vs QCMS 1.11x BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2078623002 CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot Review-Url: https://codereview.chromium.org/2078623002
* Implement fast, correct gamma conversion for color xformsGravatar msarett2016-06-16
| | | | | | | | | | | | | | | | | | | | | | 201295.jpg on HP z620 (300x280, most common form of sRGB profile) QCMS Xform 0.495 ms Skia Old Xform 0.235 ms Skia NEW Xform 0.423 ms Vs Old Code 0.56x Vs QCMS 1.17x So to summarize, we are now much slower than before, but still a bit faster than QCMS. And now we are also far more accurate than QCMS :). BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2060823003 CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot Review-Url: https://codereview.chromium.org/2060823003
* Differentiate between sRGBGamma and 2Dot2GammaGravatar msarett2016-06-16
| | | | | | | BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2067833003 Review-Url: https://codereview.chromium.org/2067833003
* Optimize color xforms with 2.2 gammas for SSE2Gravatar msarett2016-06-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Because we recognize commonly used gamma tables and parameters as 2.2f, about 98% of jpegs with color profiles will pass through this xform (assuming the dst is also 2.2f). Sample size is 10,322 jpegs. I won't go crazy with performance numbers because this is a work in progress, particularly in terms of correctness. 201295.jpg on HP z620 (300x280, most common form of sRGB profile) Decode Time + QCMS Xform 1.28 ms QCMS Xform Only 0.495 ms Decode Time + Skia Opt Xform 1.01 ms Skia Opt Xform Only 0.235 ms Decode Time + Xform Speed-up 1.27x Xform Only Speed-up 2.11x FWIW, Skia xform time before these optimizations was 41.1 ms. But we expected that code to be slow. BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2046013002 CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot Review-Url: https://codereview.chromium.org/2046013002
* Add SkDefaultXform as a catch-all to handle color conversionsGravatar msarett2016-06-06
| | | | | | | | | | | I'd like to start optimizing the common case for color xforms, but before doing that, I think it makes sense to have correct code to support all xforms. BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2038823002 Review-Url: https://codereview.chromium.org/2038823002
* Create SkColorSpaceXform to handle color conversionsGravatar msarett2016-06-01
| | | | | | | | | | | | Also adds testing of qcms color correction, so we can compare SkColorSpaceXform outputs to qcms outputs. BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1952063002 Committed: https://skia.googlesource.com/skia/+/740cc88ee3d63c75e52d31238f2a32600cc57a8c Review-Url: https://codereview.chromium.org/1952063002
* Revert of Create SkColorSpaceXform to handle color conversions (patchset #10 ↵Gravatar msarett2016-06-01
| | | | | | | | | | | | | | | | | | | | | | | | | | | id:260001 of https://codereview.chromium.org/1952063002/ ) Reason for revert: Google3 can't find qcms Original issue's description: > Create SkColorSpaceXform to handle color conversions > > Also adds testing of qcms color correction, so we can compare > SkColorSpaceXform outputs to qcms outputs. > > BUG=skia: > GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1952063002 > > Committed: https://skia.googlesource.com/skia/+/740cc88ee3d63c75e52d31238f2a32600cc57a8c TBR=reed@google.com,scroggo@google.com,mtklein@google.com,herb@google.com,brianosman@google.com # Skipping CQ checks because original CL landed less than 1 days ago. NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true BUG=skia: Review-Url: https://codereview.chromium.org/2023093004
* Create SkColorSpaceXform to handle color conversionsGravatar msarett2016-06-01
Also adds testing of qcms color correction, so we can compare SkColorSpaceXform outputs to qcms outputs. BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1952063002 Review-Url: https://codereview.chromium.org/1952063002
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