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path: root/src/effects/gradients/Sk4fGradientPriv.h
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* 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
* Planar ramp() for S32 linear gradientsGravatar fmalita2016-03-23
| | | | | | | R=mtklein@google.com,reed@google.com GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1825333003 Review URL: https://codereview.chromium.org/1825333003
* Refactor 4f gradients using trait templatesGravatar fmalita2016-03-21
| | | | | | | | | | | | | | | | Some 4f gradient housekeeping. 1) replace <DstPtrType, ColorProfile> specialization tuples with an enum covering all dest types (L32, S32, F16, F32) 2) group various template helpers into dest trait classes, specialized for each dest type (2a - conflate current dst_swizzle and scale_for_dest ops into one load op) R=reed@google.com,mtklein@google.com,herb@google.com GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1816883002 Review URL: https://codereview.chromium.org/1816883002
* 4f linear gradient shader blittersGravatar fmalita2016-03-18
| | | | | | | | | | | | Add F16 specializations to support writing to half-float dests. Add color profile template arg across the board to support writing to sRGB dests. R=reed@google.com,mtklein@google.com,herb@google.com GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1808963005 Review URL: https://codereview.chromium.org/1808963005
* Generic 4f gradient T sampler fallbackGravatar fmalita2016-03-10
Add a generic T sampler fallback impl which uses T series produced by subclasses mapTs() overrides. The fallback path uses the same interval structures as the current optimized linear4f impl, but always sorted in stop order (never inverted to match dx/increasing x order). Enable the new mechanism for 4f linear w/ perspective. Other boring changes: * relocate the interval builder (back) to the base class * add a private header for shared templates BUG=skia: GOLD_TRYBOT_URL= https://gold.skia.org/search2?unt=true&query=source_type%3Dgm&master=false&issue=1783823002 Review URL: https://codereview.chromium.org/1783823002
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