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double buffering

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downthecrop 2024-10-27 21:38:12 -07:00
parent 8b89a2bb8c
commit c307db1e11
1 changed files with 18 additions and 16 deletions
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34
plugin-playground/src/main/kotlin/KondoKit/plugin.kt
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@ -158,7 +158,7 @@ class plugin : Plugin() {
private var op: AffineTransformOp? = null
private var transform: AffineTransform? = null
private var flippedImage: BufferedImage? = null // Only used in HD
private var flippedImage: BufferedImage? = null
private var bufferImage = BufferedImage(FIXED_WIDTH, FIXED_HEIGHT, BufferedImage.TYPE_INT_BGR)
private var lastImageWidth = -1
@ -190,6 +190,7 @@ class plugin : Plugin() {
override fun addNotify() {
super.addNotify()
createBufferStrategy(2) // Double-buffering
validateGameImage()
}
@ -218,17 +219,23 @@ class plugin : Plugin() {
}
}
override fun paint(g: Graphics) {
val g2d = g as Graphics2D
g2d.color = Color.BLACK
g2d.fillRect(0, 0, width, height)
gameImage?.let { image ->
val scale = minOf(width.toDouble() / image.width, height.toDouble() / image.height)
val x = ((width - image.width * scale) / 2).toInt()
val y = ((height - image.height * scale) / 2).toInt()
g2d.drawImage(image, x, y, (image.width * scale).toInt(), (image.height * scale).toInt(), null)
Toolkit.getDefaultToolkit().sync()
override fun paint(g: Graphics) {
bufferStrategy?.let { strategy ->
val g2d = strategy.drawGraphics as? Graphics2D ?: return
g2d.color = Color.BLACK
g2d.fillRect(0, 0, width, height)
gameImage?.let { image ->
val scale = minOf(width.toDouble() / image.width, height.toDouble() / image.height)
val x = ((width - image.width * scale) / 2).toInt()
val y = ((height - image.height * scale) / 2).toInt()
g2d.drawImage(image, x, y, (image.width * scale).toInt(), (image.height * scale).toInt(), null)
}
g2d.dispose() // Release the graphics context
strategy.show() // Display the buffer
}
}
@ -259,23 +266,18 @@ class plugin : Plugin() {
bufferImage.setRGB(0, 0, width, height, GlRenderer.pixelData, 0, width)
// Check if dimensions have changed
if (width != lastImageWidth || height != lastImageHeight) {
// Initialize or update transform and operation
transform = AffineTransform.getScaleInstance(1.0, -1.0).apply {
translate(0.0, -height.toDouble())
}
op = AffineTransformOp(transform, AffineTransformOp.TYPE_NEAREST_NEIGHBOR)
flippedImage = BufferedImage(width, height, bufferImage.type)
lastImageWidth = width
lastImageHeight = height
}
// Apply the transform operation
op!!.filter(bufferImage, flippedImage)
// Draw the flipped image onto gameImage
gameImage?.createGraphics()?.apply {
drawImage(flippedImage, 0, 0, null)
dispose()