Window icon

src/main/kotlin/ru/dbotthepony/kstarbound/client/StarboundClient.kt

@@ -8,11 +8,14 @@ import org.lwjgl.BufferUtils
 import org.lwjgl.glfw.Callbacks
 import org.lwjgl.glfw.GLFW
 import org.lwjgl.glfw.GLFWErrorCallback
+import org.lwjgl.glfw.GLFWImage
 import org.lwjgl.opengl.GL
 import org.lwjgl.opengl.GL45.*
 import org.lwjgl.opengl.GLCapabilities
+import org.lwjgl.stb.STBImage
 import org.lwjgl.system.MemoryStack
 import org.lwjgl.system.MemoryUtil
+import org.lwjgl.system.MemoryUtil.memAddressSafe
 import ru.dbotthepony.kstarbound.util.MailboxExecutorService
 import ru.dbotthepony.kstarbound.world.PIXELS_IN_STARBOUND_UNIT
 import ru.dbotthepony.kstarbound.world.PIXELS_IN_STARBOUND_UNITf
@@ -238,7 +241,7 @@ class StarboundClient : Closeable {
 			}
 		}
 
-		val stack = MemoryStack.stackPush()
+		var stack = MemoryStack.stackPush()
 
 		try {
 			val pWidth = stack.mallocInt(1)
@@ -261,6 +264,28 @@ class StarboundClient : Closeable {
 			stack.close()
 		}
 
+		stack = MemoryStack.stackPush()
+
+		try {
+			val pWidth = stack.mallocInt(1)
+			val pHeight = stack.mallocInt(1)
+			val pChannels = stack.mallocInt(1)
+
+			val readFromDisk = readInternalBytes("starbound.png")
+			val buff = ByteBuffer.allocateDirect(readFromDisk.size)
+			buff.put(readFromDisk)
+			buff.position(0)
+
+			val data = STBImage.stbi_load_from_memory(buff, pWidth, pHeight, pChannels, 4) ?: throw IllegalStateException("Unable to decode starbound.png")
+			val img = GLFWImage.malloc()
+			img.set(pWidth[0], pHeight[0], data)
+
+			GLFW.nglfwSetWindowIcon(window, 1, memAddressSafe(img))
+			img.free()
+		} finally {
+			stack.close()
+		}
+
 		// vsync
 		GLFW.glfwSwapInterval(0)
 
@@ -1068,5 +1093,10 @@ class StarboundClient : Closeable {
 					read
 				}
 		}
+
+		@JvmStatic
+		fun readInternalBytes(file: String): ByteArray {
+			return ClassLoader.getSystemClassLoader().getResourceAsStream(file)!!.readAllBytes()
+		}
 	}
 }