[Platform/Shared] Expose submit method for DirectContex class (requir…

…ed for dx12 integration)

platform/cc/DirectContext.cc

@@ -45,6 +45,12 @@ extern "C" JNIEXPORT void JNICALL Java_org_jetbrains_skija_DirectContext__1nFlus
     context->flush(GrFlushInfo());
 }
 
+extern "C" JNIEXPORT void JNICALL Java_org_jetbrains_skija_DirectContext__1nSubmit
+  (JNIEnv* env, jclass jclass, jlong ptr, jboolean syncCpu) {
+    GrDirectContext* context = reinterpret_cast<GrDirectContext*>(static_cast<uintptr_t>(ptr));
+    context->submit(syncCpu);
+}
+
 extern "C" JNIEXPORT void JNICALL Java_org_jetbrains_skija_DirectContext__1nReset
   (JNIEnv* env, jclass jclass, jlong ptr, jint flags) {
     GrDirectContext* context = reinterpret_cast<GrDirectContext*>(static_cast<uintptr_t>(ptr));

shared/java/DirectContext.java

@@ -67,6 +67,18 @@ public DirectContext resetGL(GLBackendState... states) {
         return this;
     }
 
+    /**
+     * <p>Submit outstanding work to the gpu from all previously un-submitted flushes.</p>
+     * <p>If the syncCpu flag is true this function will return once the gpu has finished with all submitted work.</p>
+     * <p>For more information refer to skia GrDirectContext::submit(bool syncCpu) method.</p>
+     * 
+     * @param syncCpu flag to sync cpu and gpu work submission
+     */ 
+    public void submit(boolean syncCpu) {
+        Stats.onNativeCall();
+        _nSubmit(_ptr, syncCpu);
+    }
+
     /**
      * <p>Abandons all GPU resources and assumes the underlying backend 3D API context is no longer
      * usable. Call this if you have lost the associated GPU context, and thus internal texture,
@@ -102,6 +114,7 @@ public DirectContext(long ptr) {
     @ApiStatus.Internal public static native long _nMakeMetal(long devicePtr, long queuePtr);
     @ApiStatus.Internal public static native long _nMakeDirect3D(long adapterPtr, long devicePtr, long queuePtr);
     @ApiStatus.Internal public static native long _nFlush(long ptr);
+    @ApiStatus.Internal public static native long _nSubmit(long ptr, boolean syncCpu);
     @ApiStatus.Internal public static native void _nReset(long ptr, int flags);
     @ApiStatus.Internal public static native void _nAbandon(long ptr);
 }