From 0e1df4b0c8e08815f214489b372000f35c7fb7f7 Mon Sep 17 00:00:00 2001
From: Ryan Oldenburg <ryan@guzba.com>
Date: Wed, 27 Jul 2022 00:30:29 -0500
Subject: [PATCH] bugfix

---
 src/pixie/simd/avx2.nim | 8 ++++----
 src/pixie/simd/sse2.nim | 6 +++---
 2 files changed, 7 insertions(+), 7 deletions(-)

diff --git a/src/pixie/simd/avx2.nim b/src/pixie/simd/avx2.nim
index ff11e83..b79f695 100644
--- a/src/pixie/simd/avx2.nim
+++ b/src/pixie/simd/avx2.nim
@@ -110,7 +110,7 @@ proc toPremultipliedAlphaAvx2*(data: var seq[ColorRGBA | ColorRGBX]) {.simd.} =
     oddMask = mm256_set1_epi16(0xff00)
     vec128 = mm256_set1_epi16(128)
     hiMask = mm256_set1_epi16(255 shl 8)
-    iterations = data.len div 8
+    iterations = (data.len - i) div 8
   for _ in 0 ..< iterations:
     let
       values = mm256_load_si256(cast[pointer](p))
@@ -163,7 +163,7 @@ proc invertAvx2*(image: Image) {.simd.} =
 
   let
     vec255 = mm256_set1_epi8(255)
-    iterations = image.data.len div 16
+    iterations = (image.data.len - i) div 16
   for _ in 0 ..< iterations:
     let
       a = mm256_load_si256(cast[pointer](p))
@@ -211,7 +211,7 @@ proc applyOpacityAvx2*(image: Image, opacity: float32) {.simd.} =
     div255 = mm256_set1_epi16(0x8081)
     zeroVec = mm256_setzero_si256()
     opacityVec = mm256_slli_epi16(mm256_set1_epi16(opacity), 8)
-    iterations = image.data.len div 8
+    iterations = (image.data.len - i) div 8
   for _ in 0 ..< iterations:
     let
       values = mm256_load_si256(cast[pointer](p))
@@ -257,7 +257,7 @@ proc ceilAvx2*(image: Image) {.simd.} =
   let
     vecZero = mm256_setzero_si256()
     vec255 = mm256_set1_epi8(255)
-    iterations = image.data.len div 8
+    iterations = (image.data.len - i) div 8
   for _ in 0 ..< iterations:
     var values = mm256_load_si256(cast[pointer](p))
     values = mm256_cmpeq_epi8(values, vecZero)
diff --git a/src/pixie/simd/sse2.nim b/src/pixie/simd/sse2.nim
index 890bd35..84140de 100644
--- a/src/pixie/simd/sse2.nim
+++ b/src/pixie/simd/sse2.nim
@@ -212,7 +212,7 @@ proc invertSse2*(image: Image) {.simd.} =
 
   let
     vec255 = mm_set1_epi8(255)
-    iterations = image.data.len div 16
+    iterations = (image.data.len - i) div 16
   for _ in 0 ..< iterations:
     let
       a = mm_load_si128(cast[pointer](p))
@@ -264,7 +264,7 @@ proc applyOpacitySse2*(image: Image, opacity: float32) {.simd.} =
     div255 = mm_set1_epi16(0x8081)
     zeroVec = mm_setzero_si128()
     opacityVec = mm_slli_epi16(mm_set1_epi16(opacity), 8)
-    iterations = image.data.len div 4
+    iterations = (image.data.len - i) div 4
   for _ in 0 ..< iterations:
     let values = mm_loadu_si128(cast[pointer](p))
     if mm_movemask_epi8(mm_cmpeq_epi16(values, zeroVec)) != 0xffff:
@@ -308,7 +308,7 @@ proc ceilSse2*(image: Image) {.simd.} =
   let
     vecZero = mm_setzero_si128()
     vec255 = mm_set1_epi8(255)
-    iterations = image.data.len div 8
+    iterations = (image.data.len - i) div 8
   for _ in 0 ..< iterations:
     var
       values0 = mm_loadu_si128(cast[pointer](p))