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Fixes mouse cursor format for LWJGL3

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This commit is contained in:
Fennel 2016-12-04 02:43:27 +01:00
parent f38ddadc5b
commit 54c854bec6
1 changed files with 23 additions and 5 deletions
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28
jme3-lwjgl3/src/main/java/com/jme3/input/lwjgl/GlfwMouseInput.java
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@ -238,17 +238,35 @@ public class GlfwMouseInput implements MouseInput {
return (long) (glfwGetTime() * 1000000000); return (long) (glfwGetTime() * 1000000000);
} }
private long createGlfwCursor(JmeCursor jmeCursor) { private ByteBuffer transformCursorImage(IntBuffer imageData, int w, int h) {
GLFWImage glfwImage = new GLFWImage(BufferUtils.createByteBuffer(GLFWImage.SIZEOF)); ByteBuffer buf = BufferUtils.createByteBuffer(imageData.capacity() * 4);
// Transform image: ARGB -> RGBA, vertical flip
for (int y = h-1; y >= 0; --y) {
for (int x = 0; x < w; ++x) {
int pixel = imageData.get(y*w + x);
buf.put((byte) ((pixel >> 16) & 0xFF)); // red
buf.put((byte) ((pixel >> 8) & 0xFF)); // green
buf.put((byte) ( pixel & 0xFF)); // blue
buf.put((byte) ((pixel >> 24) & 0xFF)); // alpha
}
}
buf.flip();
return buf;
}
private long createGlfwCursor(JmeCursor jmeCursor) {
// TODO: currently animated cursors are not supported // TODO: currently animated cursors are not supported
IntBuffer imageData = jmeCursor.getImagesData(); IntBuffer imageData = jmeCursor.getImagesData();
ByteBuffer buf = BufferUtils.createByteBuffer(imageData.capacity() * 4); ByteBuffer buf = transformCursorImage(imageData, jmeCursor.getWidth(), jmeCursor.getHeight());
buf.asIntBuffer().put(imageData);
GLFWImage glfwImage = new GLFWImage(BufferUtils.createByteBuffer(GLFWImage.SIZEOF));
glfwImage.set(jmeCursor.getWidth(), jmeCursor.getHeight(), buf); glfwImage.set(jmeCursor.getWidth(), jmeCursor.getHeight(), buf);
return glfwCreateCursor(glfwImage, jmeCursor.getXHotSpot(), jmeCursor.getYHotSpot()); int hotspotX = jmeCursor.getXHotSpot();
int hotspotY = jmeCursor.getHeight() - jmeCursor.getYHotSpot();
return glfwCreateCursor(glfwImage, hotspotX, hotspotY);
} }
public void setNativeCursor(JmeCursor jmeCursor) { public void setNativeCursor(JmeCursor jmeCursor) {