jni: initialize x/y through the constructor instead of statically

Author: fridtjof

src/modules/out_jnibuf.c

@@ -78,10 +78,10 @@ int init(void) {
     jc_jni_sled = JniEnv->GetObjectClass(pJniEnv, jo_jni_sled);
 
     // determine sizes
-    jf_matx = JniEnv->GetStaticFieldID(pJniEnv, jc_jni_sled, "MATRIX_X", "I");
-    jf_maty = JniEnv->GetStaticFieldID(pJniEnv, jc_jni_sled, "MATRIX_Y", "I");
-    matx = JniEnv->GetStaticIntField(pJniEnv, jc_jni_sled, jf_matx);
-    maty = JniEnv->GetStaticIntField(pJniEnv, jc_jni_sled, jf_maty);
+    jf_matx = JniEnv->GetFieldID(pJniEnv, jc_jni_sled, "matrixX", "I");
+    jf_maty = JniEnv->GetFieldID(pJniEnv, jc_jni_sled, "matrixY", "I");
+    matx = JniEnv->GetIntField(pJniEnv, jo_jni_sled, jf_matx);
+    maty = JniEnv->GetIntField(pJniEnv, jo_jni_sled, jf_maty);
     JNI_BUFFER_SIZE = matx * maty * sizeof(jint);
 
     // allocate output buffers

src/os/JniSled.java

@@ -8,19 +8,31 @@ public class JniSled implements Runnable {
         System.loadLibrary("sled");
     }
 
-    // only set these before starting the thread!!!
-    public static int MATRIX_X = 256;
-    public static int MATRIX_Y = 256;
+    private int matrixX = 256;
+    private int matrixY = 256;
 
     private int[] currentBuf;
 
+    public JniSled(int x, int y) {
+        matrixX = x;
+        matrixY = y;
+    }
+
     public native void main();
 
     @Override
     public void run() {
         main();
     }
 
+    public int getMatrixX() {
+            return matrixX;
+    }
+
+    public int getMatrixY() {
+        return matrixY;
+    }
+
     // TODO: maybe make this trigger a callback optionally?
     //  could use that to let the user immediately render,
     //  "pushing" instead of polling