Refactor HardwareLayer

 Defer all the things!
 Groundwork to allow hardware layers to work in a renderthread world

Change-Id: Ib3aa47525f393083621254a743dbaa6352f933bd

1 files changed, 183 insertions, 0 deletions

diff --git a/core/jni/android_view_HardwareLayer.cpp b/core/jni/android_view_HardwareLayer.cpp
new file mode 100644
index 0000000..8a0a011
--- /dev/null
+++ b/core/jni/android_view_HardwareLayer.cpp
@@ -0,0 +1,183 @@
+/*
+ * Copyright (C) 2014 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#define LOG_TAG "OpenGLRenderer"
+
+#include "jni.h"
+#include "GraphicsJNI.h"
+#include <nativehelper/JNIHelp.h>
+
+#include <android_runtime/AndroidRuntime.h>
+#include <android_runtime/android_graphics_SurfaceTexture.h>
+
+#include <gui/GLConsumer.h>
+
+#include <SkBitmap.h>
+#include <SkCanvas.h>
+#include <SkMatrix.h>
+#include <SkPaint.h>
+#include <SkXfermode.h>
+
+#include <DeferredLayerUpdater.h>
+#include <DisplayList.h>
+#include <LayerRenderer.h>
+#include <SkiaShader.h>
+#include <Rect.h>
+
+namespace android {
+
+using namespace uirenderer;
+
+#ifdef USE_OPENGL_RENDERER
+
+static jlong android_view_HardwareLayer_createTextureLayer(JNIEnv* env, jobject clazz) {
+    Layer* layer = LayerRenderer::createTextureLayer();
+    if (!layer) return 0;
+
+    return reinterpret_cast<jlong>( new DeferredLayerUpdater(layer) );
+}
+
+static jlong android_view_HardwareLayer_createRenderLayer(JNIEnv* env, jobject clazz,
+        jint width, jint height) {
+    Layer* layer = LayerRenderer::createRenderLayer(width, height);
+    if (!layer) return 0;
+
+    OpenGLRenderer* renderer = new LayerRenderer(layer);
+    renderer->initProperties();
+    return reinterpret_cast<jlong>( new DeferredLayerUpdater(layer, renderer) );
+}
+
+static void android_view_HardwareLayer_onTextureDestroyed(JNIEnv* env, jobject clazz,
+        jlong layerUpdaterPtr) {
+    DeferredLayerUpdater* layer = reinterpret_cast<DeferredLayerUpdater*>(layerUpdaterPtr);
+    layer->backingLayer()->clearTexture();
+}
+
+static jlong android_view_HardwareLayer_detachBackingLayer(JNIEnv* env, jobject clazz,
+        jlong layerUpdaterPtr) {
+    DeferredLayerUpdater* layer = reinterpret_cast<DeferredLayerUpdater*>(layerUpdaterPtr);
+    return reinterpret_cast<jlong>( layer->detachBackingLayer() );
+}
+
+static void android_view_HardwareLayer_destroyLayerUpdater(JNIEnv* env, jobject clazz,
+        jlong layerUpdaterPtr) {
+    DeferredLayerUpdater* layer = reinterpret_cast<DeferredLayerUpdater*>(layerUpdaterPtr);
+    delete layer;
+}
+
+static jboolean android_view_HardwareLayer_prepare(JNIEnv* env, jobject clazz,
+        jlong layerUpdaterPtr, jint width, jint height, jboolean isOpaque) {
+    DeferredLayerUpdater* layer = reinterpret_cast<DeferredLayerUpdater*>(layerUpdaterPtr);
+    bool changed = false;
+    changed |= layer->setSize(width, height);
+    changed |= layer->setBlend(!isOpaque);
+    return changed;
+}
+
+static void android_view_HardwareLayer_setLayerPaint(JNIEnv* env, jobject clazz,
+        jlong layerUpdaterPtr, jlong paintPtr, jlong colorFilterPtr) {
+    DeferredLayerUpdater* layer = reinterpret_cast<DeferredLayerUpdater*>(layerUpdaterPtr);
+    if (layer) {
+        SkPaint* paint = reinterpret_cast<SkPaint*>(paintPtr);
+        SkColorFilter* colorFilter = reinterpret_cast<SkColorFilter*>(colorFilterPtr);
+        layer->setPaint(paint);
+        layer->setColorFilter(colorFilter);
+    }
+}
+
+static void android_view_HardwareLayer_setTransform(JNIEnv* env, jobject clazz,
+        jlong layerUpdaterPtr, jlong matrixPtr) {
+    DeferredLayerUpdater* layer = reinterpret_cast<DeferredLayerUpdater*>(layerUpdaterPtr);
+    SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixPtr);
+    layer->setTransform(matrix);
+}
+
+static void android_view_HardwareLayer_setSurfaceTexture(JNIEnv* env, jobject clazz,
+        jlong layerUpdaterPtr, jobject surface, jboolean isAlreadyAttached) {
+    DeferredLayerUpdater* layer = reinterpret_cast<DeferredLayerUpdater*>(layerUpdaterPtr);
+    sp<GLConsumer> surfaceTexture(SurfaceTexture_getSurfaceTexture(env, surface));
+    layer->setSurfaceTexture(surfaceTexture, !isAlreadyAttached);
+}
+
+static void android_view_HardwareLayer_updateSurfaceTexture(JNIEnv* env, jobject clazz,
+        jlong layerUpdaterPtr) {
+    DeferredLayerUpdater* layer = reinterpret_cast<DeferredLayerUpdater*>(layerUpdaterPtr);
+    layer->updateTexImage();
+}
+
+static void android_view_HardwareLayer_updateRenderLayer(JNIEnv* env, jobject clazz,
+        jlong layerUpdaterPtr, jlong displayListPtr,
+        jint left, jint top, jint right, jint bottom) {
+    DeferredLayerUpdater* layer = reinterpret_cast<DeferredLayerUpdater*>(layerUpdaterPtr);
+    DisplayList* displayList = reinterpret_cast<DisplayList*>(displayListPtr);
+    layer->setDisplayList(displayList, left, top, right, bottom);
+}
+
+static jboolean android_view_HardwareLayer_flushChanges(JNIEnv* env, jobject clazz,
+        jlong layerUpdaterPtr) {
+    DeferredLayerUpdater* layer = reinterpret_cast<DeferredLayerUpdater*>(layerUpdaterPtr);
+    return layer->apply();
+}
+
+static jlong android_view_HardwareLayer_getLayer(JNIEnv* env, jobject clazz,
+        jlong layerUpdaterPtr) {
+    DeferredLayerUpdater* layer = reinterpret_cast<DeferredLayerUpdater*>(layerUpdaterPtr);
+    return reinterpret_cast<jlong>( layer->backingLayer() );
+}
+
+static jint android_view_HardwareLayer_getTexName(JNIEnv* env, jobject clazz,
+        jlong layerUpdaterPtr) {
+    DeferredLayerUpdater* layer = reinterpret_cast<DeferredLayerUpdater*>(layerUpdaterPtr);
+    return layer->backingLayer()->getTexture();
+}
+
+#endif // USE_OPENGL_RENDERER
+
+// ----------------------------------------------------------------------------
+// JNI Glue
+// ----------------------------------------------------------------------------
+
+const char* const kClassPathName = "android/view/HardwareLayer";
+
+static JNINativeMethod gMethods[] = {
+#ifdef USE_OPENGL_RENDERER
+
+    { "nCreateTextureLayer",     "()J",        (void*) android_view_HardwareLayer_createTextureLayer },
+    { "nCreateRenderLayer",      "(II)J",      (void*) android_view_HardwareLayer_createRenderLayer },
+    { "nOnTextureDestroyed",     "(J)V",       (void*) android_view_HardwareLayer_onTextureDestroyed },
+    { "nDetachBackingLayer",     "(J)J",       (void*) android_view_HardwareLayer_detachBackingLayer },
+    { "nDestroyLayerUpdater",    "(J)V",       (void*) android_view_HardwareLayer_destroyLayerUpdater },
+
+    { "nPrepare",                "(JIIZ)Z",    (void*) android_view_HardwareLayer_prepare },
+    { "nSetLayerPaint",          "(JJJ)V",     (void*) android_view_HardwareLayer_setLayerPaint },
+    { "nSetTransform",           "(JJ)V",      (void*) android_view_HardwareLayer_setTransform },
+    { "nSetSurfaceTexture",      "(JLandroid/graphics/SurfaceTexture;Z)V",
+            (void*) android_view_HardwareLayer_setSurfaceTexture },
+    { "nUpdateSurfaceTexture",   "(J)V",       (void*) android_view_HardwareLayer_updateSurfaceTexture },
+    { "nUpdateRenderLayer",      "(JJIIII)V",  (void*) android_view_HardwareLayer_updateRenderLayer },
+
+    { "nFlushChanges",           "(J)Z",       (void*) android_view_HardwareLayer_flushChanges },
+
+    { "nGetLayer",               "(J)J",       (void*) android_view_HardwareLayer_getLayer },
+    { "nGetTexName",             "(J)I",       (void*) android_view_HardwareLayer_getTexName },
+#endif
+};
+
+int register_android_view_HardwareLayer(JNIEnv* env) {
+    return AndroidRuntime::registerNativeMethods(env, kClassPathName, gMethods, NELEM(gMethods));
+}
+
+};