MyouProject/pixie
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0.0.15, gate simd behind amd64

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Ryan Oldenburg 2021-01-23 11:32:30 -06:00
parent 2979b86aee
commit b3bf8fc356
2 changed files with 71 additions and 42 deletions
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2
pixie.nimble
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@ -1,4 +1,4 @@
version = "0.0.14" version = "0.0.15"
author = "Andre von Houck and Ryan Oldenburg" author = "Andre von Houck and Ryan Oldenburg"
description = "Full-featured 2d graphics library for Nim." description = "Full-featured 2d graphics library for Nim."
license = "MIT" license = "MIT"

31
src/pixie/blends.nim
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@ -1,5 +1,8 @@
## Blending modes. ## Blending modes.
import chroma, math, nimsimd/sse2 import chroma, math
when defined(amd64):
import nimsimd/sse2
# See https://www.w3.org/TR/compositing-1/ # See https://www.w3.org/TR/compositing-1/
# See https://www.khronos.org/registry/OpenGL/extensions/KHR/KHR_blend_equation_advanced.txt # See https://www.khronos.org/registry/OpenGL/extensions/KHR/KHR_blend_equation_advanced.txt
@ -261,6 +264,7 @@ proc blendExcludeMaskFloats*(backdrop, source: Color): Color {.inline.} =
proc blendOverwriteFloats*(backdrop, source: Color): Color {.inline.} = proc blendOverwriteFloats*(backdrop, source: Color): Color {.inline.} =
source source
when defined(amd64):
proc alphaFix(backdrop, source: ColorRGBA, vb, vs, vm: M128): ColorRGBA = proc alphaFix(backdrop, source: ColorRGBA, vb, vs, vm: M128): ColorRGBA =
let let
sa = source.a.float32 sa = source.a.float32
@ -292,6 +296,28 @@ proc alphaFix(backdrop, source, mixed: ColorRGBA): ColorRGBA {.inline.} =
vs = mm_setr_ps(source.r.float32, source.g.float32, source.b.float32, 0) vs = mm_setr_ps(source.r.float32, source.g.float32, source.b.float32, 0)
vm = mm_setr_ps(mixed.r.float32, mixed.g.float32, mixed.b.float32, 0) vm = mm_setr_ps(mixed.r.float32, mixed.g.float32, mixed.b.float32, 0)
alphaFix(backdrop, source, vb, vs, vm) alphaFix(backdrop, source, vb, vs, vm)
else:
proc alphaFix(backdrop, source, mixed: ColorRGBA): ColorRGBA {.inline.} =
let
sa = source.a.int32
ba = backdrop.a.int32
t0 = sa * (255 - ba)
t1 = sa * ba
t2 = (255 - sa) * ba
let
r = t0 * source.r.int32 + t1 * mixed.r.int32 + t2 * backdrop.r.int32
g = t0 * source.g.int32 + t1 * mixed.g.int32 + t2 * backdrop.g.int32
b = t0 * source.b.int32 + t1 * mixed.b.int32 + t2 * backdrop.b.int32
a = sa + ba * (255 - sa) div 255
if a == 0:
return
result.r = (r div a div 255).uint8
result.g = (g div a div 255).uint8
result.b = (b div a div 255).uint8
result.a = a.uint8
proc min(a, b: uint32): uint32 {.inline.} = proc min(a, b: uint32): uint32 {.inline.} =
if a < b: a else: b if a < b: a else: b
@ -391,6 +417,7 @@ proc blendSoftLight(backdrop, source: ColorRGBA): ColorRGBA =
# (2 * source * backdrop) div 255 # (2 * source * backdrop) div 255
# ).uint8 # ).uint8
when defined(amd64):
let let
vb = mm_setr_ps(backdrop.r.float32, backdrop.g.float32, backdrop.b.float32, 0) vb = mm_setr_ps(backdrop.r.float32, backdrop.g.float32, backdrop.b.float32, 0)
vs = mm_setr_ps(source.r.float32, source.g.float32, source.b.float32, 0) vs = mm_setr_ps(source.r.float32, source.g.float32, source.b.float32, 0)
@ -404,6 +431,8 @@ proc blendSoftLight(backdrop, source: ColorRGBA): ColorRGBA =
result.g = values[1].uint8 result.g = values[1].uint8
result.b = values[2].uint8 result.b = values[2].uint8
result = alphaFix(backdrop, source, vb, vs, vm) result = alphaFix(backdrop, source, vb, vs, vm)
else:
blendSoftLightFloats(backdrop.color, source.color).rgba
proc blendDifference(backdrop, source: ColorRGBA): ColorRGBA = proc blendDifference(backdrop, source: ColorRGBA): ColorRGBA =
result.r = max(backdrop.r, source.r) - min(backdrop.r, source.r) result.r = max(backdrop.r, source.r) - min(backdrop.r, source.r)