Release 0.5.1 version.

Fix color Int creation, by setting 0xff for alpha channel.
Transparency is not supported in BITMAPINFOHEADER.

build.sbt

@@ -3,7 +3,7 @@ import scala.scalanative.build._
 name := "bmp4s"
 
 ThisBuild / organization := "com.alexdupre"
-ThisBuild / version := "0.5"
+ThisBuild / version := "0.5.1"
 ThisBuild / versionScheme := Some("early-semver")
 ThisBuild / scalaVersion := "2.13.5"
 ThisBuild / scalacOptions := List("-feature", "-unchecked", "-deprecation", "-explaintypes", "-encoding", "UTF8", "-language:postfixOps")

project/plugins.sbt

@@ -1,5 +1,5 @@
 addSbtPlugin("org.scalameta" % "sbt-scalafmt" % "2.4.2")
 addSbtPlugin("org.xerial.sbt" % "sbt-sonatype" % "3.9.7")
 addSbtPlugin("com.jsuereth" % "sbt-pgp" % "2.1.1")
-addSbtPlugin("com.eed3si9n" % "sbt-projectmatrix" % "0.7.0")
+addSbtPlugin("com.eed3si9n" % "sbt-projectmatrix" % "0.8.0")
 addSbtPlugin("org.scala-native" % "sbt-scala-native" % "0.4.0")

src/main/scala/com/alexdupre/bmp/BMPImageInfo.scala

@@ -135,7 +135,7 @@ object BMPImageInfo {
   private def readPalette(in: ReaderInterface, size: Int): Array[Int] = {
     val buf = readBuf(in, size * 4)
     buf.rewind()
-    Array.fill(size)(buf.getInt() & 0x00ffffff)
+    Array.fill(size)(0xff000000 | buf.getInt())
   }
 
   def read(in: ReaderInterface): BMPImageInfo = {

src/main/scala/com/alexdupre/bmp/BMPImageLine.scala

@@ -24,8 +24,8 @@ class BMPImageLine(info: BMPImageInfo) {
       require(line.length - offset >= info.width, "Output buffer is too small")
       in.read(rawLine)
       val dataLine = wrappedRawLine()
-      for (i <- 0 until line.length) line(i + offset) = info.colorDepth match {
-        case 32 => dataLine.getInt() & 0xffffff
+      for (i <- 0 until line.length) line(i + offset) = 0xff000000 | info.colorDepth match {
+        case 32 => dataLine.getInt()
         case 24 =>
           val b = dataLine.get() & 0xff
           val g = dataLine.get() & 0xff

src/main/scala/com/alexdupre/bmp/BMPImageSeekableLine.scala

@@ -31,8 +31,8 @@ class BMPImageSeekableLine(info: BMPImageInfo) {
       val rawLen = length * info.colorDepth / 8
       in.read(rawLine, 0, rawLen)
       val dataLine = wrappedRawLine()
-      for (i <- 0 until line.length) line(i + offset) = info.colorDepth match {
-        case 32 => dataLine.getInt() & 0xffffff
+      for (i <- 0 until line.length) line(i + offset) = 0xff000000 | info.colorDepth match {
+        case 32 => dataLine.getInt()
         case 24 =>
           val b = dataLine.get() & 0xff
           val g = dataLine.get() & 0xff