small stuff

experiments/benchmark_cairo.nim

@@ -1,7 +1,7 @@
 import benchy, cairo, chroma, math, pixie
 
 block:
-  var
+  let
     surface = imageSurfaceCreate(FORMAT_ARGB32, 1920, 1080)
     ctx = surface.create()
 
@@ -19,7 +19,7 @@ block:
 
   # discard surface.writeToPng("cairo1.png")
 
-  var a = newImage(1920, 1080)
+  let a = newImage(1920, 1080)
   a.fill(rgba(255, 255, 255, 255))
 
   timeIt "pixie1":
@@ -34,7 +34,7 @@ block:
   # a.writeFile("pixie1.png")
 
 block:
-  var
+  let
     surface = imageSurfaceCreate(FORMAT_ARGB32, 1920, 1080)
     ctx = surface.create()
 
@@ -52,7 +52,7 @@ block:
 
   # discard surface.writeToPng("cairo2.png")
 
-  var a = newImage(1920, 1080)
+  let a = newImage(1920, 1080)
   a.fill(rgba(255, 255, 255, 255))
 
   timeIt "pixie2":

src/pixie/images.nim

@@ -709,7 +709,7 @@ proc drawUber(a, b: Image | Mask, mat = mat3(), blendMode = bmNormal) =
     else:
       var x = xMin
       when defined(amd64) and not defined(pixieNoSimd):
-        if dx.x == 1 and dx.y == 0 and dy.x == 0 and dy.y == 1:
+        if dx == vec2(1, 0) and dy == vec2(0, 1):
           # Check we are not rotated before using SIMD blends
           when type(a) is Image:
             if blendMode.hasSimdBlender():
@@ -732,7 +732,6 @@ proc drawUber(a, b: Image | Mask, mat = mat3(), blendMode = bmNormal) =
                   blenderSimd(backdrop, source)
                 )
                 x += 4
-
           else: # is a Mask
             if blendMode.hasSimdMasker():
               let maskerSimd = blendMode.maskerSimd()

tests/benchmark_png.nim

@@ -1,7 +1,9 @@
-import benchy, nimPNG, pixie/fileformats/png, stb_image/read as stbi,
+import benchy, cairo, nimPNG, pixie/fileformats/png, stb_image/read as stbi,
     stb_image/write as stbr
 
-let data = readFile("tests/images/png/lenna.png")
+let
+  filePath = "tests/images/png/lenna.png"
+  data = readFile(filePath)
 
 timeIt "pixie decode":
   keep decodePng(cast[seq[uint8]](data))
@@ -37,3 +39,14 @@ timeIt "stb_image encode":
     stbi.RGBA
   )
   keep writePNG(width, height, channels, decoded).len
+
+timeIt "cairo decode":
+  keep imageSurfaceCreateFromPng(filePath)
+
+timeIt "cairo encode":
+  let decoded = imageSurfaceCreateFromPng(filePath)
+
+  var write: WriteFunc = proc(closure: pointer, data: cstring, len: int32): Status {.cdecl.} =
+    StatusSuccess
+
+  discard decoded.writeToPng(write, nil)