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* Improve naive SkColorXform to half floatsGravatar msarett2016-07-19
| | | | | | | | | | | | | | | | | | | | | | | | This should give us a good baseline to explore using SkRasterPipeline. A particular colorxform to half float drops from 425us to 282us on my desktop. Color Xform to Half Float (HP z620) Original 425us Trans16 (not 32) 355us Vector Trans16 378us Trans16 + Keep Halfs in Vector 335us Vector Trans16 + Keep Halfs in Vector 282us Final 282us Color Xform to Half Float (Nexus 5X) Original 556us Final 472us BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2159993003 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/2159993003
* Expand _01 half<->float limitation to _finite. Simplify.Gravatar mtklein2016-07-15
| | | | | | | | | | | | | | | | | | | | | | | It's become clear we need to sometimes deal with values <0 or >1. I'm not yet convinced we care about NaN or +-inf. We had some fairly clever tricks and optimizations here for NEON and SSE. I've thrown them out in favor of a single implementation. If we find the specializations mattered, we can certainly figure out how to extend them to this new range/domain. This happens to add a vectorized float -> half for ARMv7, which was missing from the _01 version. (The SSE strategy was not portable to platforms that flush denorm floats to zero.) I've tested the full float range for FloatToHalf on my desktop and a 5x. BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2145663003 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,Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-Fast-Trybot Committed: https://skia.googlesource.com/skia/+/3296bee70d074bb8094b3229dbe12fa016657e90 Review-Url: https://codereview.chromium.org/2145663003
* Revert of Expand _01 half<->float limitation to _finite. Simplify. ↵Gravatar mtklein2016-07-14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | (patchset #7 id:120001 of https://codereview.chromium.org/2145663003/ ) Reason for revert: Unit tests fail on Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-Fast Original issue's description: > Expand _01 half<->float limitation to _finite. Simplify. > > It's become clear we need to sometimes deal with values <0 or >1. > I'm not yet convinced we care about NaN or +-inf. > > We had some fairly clever tricks and optimizations here for NEON > and SSE. I've thrown them out in favor of a single implementation. > If we find the specializations mattered, we can certainly figure out > how to extend them to this new range/domain. > > This happens to add a vectorized float -> half for ARMv7, which was > missing from the _01 version. (The SSE strategy was not portable to > platforms that flush denorm floats to zero.) > > I've tested the full float range for FloatToHalf on my desktop and a 5x. > > BUG=skia: > GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2145663003 > 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,Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-Fast-Trybot > > Committed: https://skia.googlesource.com/skia/+/3296bee70d074bb8094b3229dbe12fa016657e90 TBR=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/2151023003
* Expand _01 half<->float limitation to _finite. Simplify.Gravatar mtklein2016-07-14
| | | | | | | | | | | | | | | | | | | | | | It's become clear we need to sometimes deal with values <0 or >1. I'm not yet convinced we care about NaN or +-inf. We had some fairly clever tricks and optimizations here for NEON and SSE. I've thrown them out in favor of a single implementation. If we find the specializations mattered, we can certainly figure out how to extend them to this new range/domain. This happens to add a vectorized float -> half for ARMv7, which was missing from the _01 version. (The SSE strategy was not portable to platforms that flush denorm floats to zero.) I've tested the full float range for FloatToHalf on my desktop and a 5x. BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2145663003 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/2145663003
* Remove bulk float <-> half routines. These are dead code.Gravatar mtklein2016-07-13
| | | | | | | BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2152583002 Review-Url: https://codereview.chromium.org/2152583002
* Change SkColor4f to RGBA channel orderGravatar brianosman2016-06-24
| | | | | | | BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2093763003 Review-Url: https://codereview.chromium.org/2093763003
* Add SkSpecialImage::extractSubset & NewFromPixmapGravatar robertphillips2016-03-17
| | | | | | | | | | | | This is calved off of: https://codereview.chromium.org/1785643003/ (Switch SkBlurImageFilter over to new onFilterImage interface) This now relies on: https://codereview.chromium.org/1813483002/ (ImagePixelLocker now manually allocates SkPixmap) to clean up the uses of SkAutoPixmapStorage in Chromium GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1787883002 Committed: https://skia.googlesource.com/skia/+/250581493a0859987e482810879e85e5ac2dc002 Review URL: https://codereview.chromium.org/1787883002
* Revert of Add SkSpecialImage::extractSubset & NewFromPixmap (patchset #5 ↵Gravatar robertphillips2016-03-16
| | | | | | | | | | | | | | | | | | | | | | | | id:80001 of https://codereview.chromium.org/1787883002/ ) Reason for revert: Need to wean ImagePixelLocker.h off of SkAutoPixmapStorage :( Original issue's description: > Add SkSpecialImage::extractSubset & NewFromPixmap > > This is calved off of: https://codereview.chromium.org/1785643003/ (Switch SkBlurImageFilter over to new onFilterImage interface) > > GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1787883002 > > Committed: https://skia.googlesource.com/skia/+/250581493a0859987e482810879e85e5ac2dc002 TBR=bsalomon@google.com,reed@google.com # Skipping CQ checks because original CL landed less than 1 days ago. NOPRESUBMIT=true NOTREECHECKS=true NOTRY=true Review URL: https://codereview.chromium.org/1808833002
* Add SkSpecialImage::extractSubset & NewFromPixmapGravatar robertphillips2016-03-16
| | | | | | | | This is calved off of: https://codereview.chromium.org/1785643003/ (Switch SkBlurImageFilter over to new onFilterImage interface) GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1787883002 Review URL: https://codereview.chromium.org/1787883002
* make SkPM4f privateGravatar reed2016-02-18
| | | | | | | BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1713653002 Review URL: https://codereview.chromium.org/1713653002
* new version of SkHalfToFloat_01Gravatar mtklein2016-02-11
| | | | | | | | | This is a little faster than the previous version, and much better explained. BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1688233002 Review URL: https://codereview.chromium.org/1688233002
* SkHalfToFloat_01 / SkFloatToHalf_01Gravatar mtklein2016-02-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | These are basically inlined, 4-at-a-time versions of our existing functions, but cut down to avoid any work that's only necessary outside [0,1]. Both f16 and f32 denorms should work fine modulo the usual ARMv7 NEON denorm==zero caveat. In exchange for a little speed, f32->f16 does not round properly. Instead it truncates, so it's never off by more than 1 bit. Support for finite values >1 or <0 is straightforward to add back. >1 might already work as-is. Getting close to _u16 performance: micros bench 261.13 xferu64_bw_1_opaque_u16 1833.51 xferu64_bw_1_alpha_u16 2762.32 ? xferu64_aa_1_opaque_u16 3334.29 xferu64_aa_1_alpha_u16 249.78 xferu64_bw_1_opaque_f16 3383.18 xferu64_bw_1_alpha_f16 4214.72 xferu64_aa_1_opaque_f16 4701.19 xferu64_aa_1_alpha_f16 BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1685133005 Committed: https://skia.googlesource.com/skia/+/9ea11a4235b3e3521cc8bf914a27c2d0dc062db9 CQ_EXTRA_TRYBOTS=client.skia:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD-Trybot Review URL: https://codereview.chromium.org/1685133005
* Revert of SkHalfToFloat_01 / SkFloatToHalf_01 (patchset #11 id:200001 of ↵Gravatar mtklein2016-02-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | https://codereview.chromium.org/1685133005/ ) Reason for revert: Gotta fix Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD Original issue's description: > SkHalfToFloat_01 / SkFloatToHalf_01 > > These are basically inlined, 4-at-a-time versions of our existing functions, > but cut down to avoid any work that's only necessary outside [0,1]. > > Both f16 and f32 denorms should work fine modulo the usual ARMv7 NEON denorm==zero caveat. > > In exchange for a little speed, f32->f16 does not round properly. > Instead it truncates, so it's never off by more than 1 bit. > > Support for finite values >1 or <0 is straightforward to add back. > >1 might already work as-is. > > Getting close to _u16 performance: > micros bench > 261.13 xferu64_bw_1_opaque_u16 > 1833.51 xferu64_bw_1_alpha_u16 > 2762.32 ? xferu64_aa_1_opaque_u16 > 3334.29 xferu64_aa_1_alpha_u16 > 249.78 xferu64_bw_1_opaque_f16 > 3383.18 xferu64_bw_1_alpha_f16 > 4214.72 xferu64_aa_1_opaque_f16 > 4701.19 xferu64_aa_1_alpha_f16 > > > BUG=skia: > GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1685133005 > > Committed: https://skia.googlesource.com/skia/+/9ea11a4235b3e3521cc8bf914a27c2d0dc062db9 TBR=jvanverth@google.com,reed@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/1693443003
* SkHalfToFloat_01 / SkFloatToHalf_01Gravatar mtklein2016-02-11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | These are basically inlined, 4-at-a-time versions of our existing functions, but cut down to avoid any work that's only necessary outside [0,1]. Both f16 and f32 denorms should work fine modulo the usual ARMv7 NEON denorm==zero caveat. In exchange for a little speed, f32->f16 does not round properly. Instead it truncates, so it's never off by more than 1 bit. Support for finite values >1 or <0 is straightforward to add back. >1 might already work as-is. Getting close to _u16 performance: micros bench 261.13 xferu64_bw_1_opaque_u16 1833.51 xferu64_bw_1_alpha_u16 2762.32 ? xferu64_aa_1_opaque_u16 3334.29 xferu64_aa_1_alpha_u16 249.78 xferu64_bw_1_opaque_f16 3383.18 xferu64_bw_1_alpha_f16 4214.72 xferu64_aa_1_opaque_f16 4701.19 xferu64_aa_1_alpha_f16 BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1685133005 Review URL: https://codereview.chromium.org/1685133005
* skeleton for float <-> half optimized procsGravatar mtklein2016-02-09
| | | | | | | | | | | | | | | | Nothing fancy yet, just calls the serial code in a loop. I will try to folow this up with at least some of: - SSE2 version of serial code - NEON version of serial code - NEON version using vcvt.f32.f16/vcvt.f16.f32 - F16C (between AVX and AVX2) version using vcvtph2ps/vcvtps2ph The last two are fastest but need runtime detection. BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1686543003 Review URL: https://codereview.chromium.org/1686543003
* add kRGBA_F16_SkColorTypeGravatar reed2016-02-05
BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1666343002 Review URL: https://codereview.chromium.org/1666343002
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