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      1 /*
      2  * Copyright (C) 2014 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #define LOG_TAG "OpenGLRenderer"
     18 
     19 #include "jni.h"
     20 #include "GraphicsJNI.h"
     21 #include <nativehelper/JNIHelp.h>
     22 
     23 #include <android_runtime/AndroidRuntime.h>
     24 #include <android_runtime/android_graphics_SurfaceTexture.h>
     25 
     26 #include <gui/GLConsumer.h>
     27 
     28 #include <Paint.h>
     29 #include <SkBitmap.h>
     30 #include <SkCanvas.h>
     31 #include <SkMatrix.h>
     32 #include <SkXfermode.h>
     33 
     34 #include <DeferredLayerUpdater.h>
     35 #include <LayerRenderer.h>
     36 #include <SkiaShader.h>
     37 #include <Rect.h>
     38 #include <RenderNode.h>
     39 
     40 namespace android {
     41 
     42 using namespace uirenderer;
     43 
     44 #ifdef USE_OPENGL_RENDERER
     45 
     46 static jboolean android_view_HardwareLayer_prepare(JNIEnv* env, jobject clazz,
     47         jlong layerUpdaterPtr, jint width, jint height, jboolean isOpaque) {
     48     DeferredLayerUpdater* layer = reinterpret_cast<DeferredLayerUpdater*>(layerUpdaterPtr);
     49     bool changed = false;
     50     changed |= layer->setSize(width, height);
     51     changed |= layer->setBlend(!isOpaque);
     52     return changed;
     53 }
     54 
     55 static void android_view_HardwareLayer_setLayerPaint(JNIEnv* env, jobject clazz,
     56         jlong layerUpdaterPtr, jlong paintPtr) {
     57     DeferredLayerUpdater* layer = reinterpret_cast<DeferredLayerUpdater*>(layerUpdaterPtr);
     58     if (layer) {
     59         Paint* paint = reinterpret_cast<Paint*>(paintPtr);
     60         layer->setPaint(paint);
     61     }
     62 }
     63 
     64 static void android_view_HardwareLayer_setTransform(JNIEnv* env, jobject clazz,
     65         jlong layerUpdaterPtr, jlong matrixPtr) {
     66     DeferredLayerUpdater* layer = reinterpret_cast<DeferredLayerUpdater*>(layerUpdaterPtr);
     67     SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixPtr);
     68     layer->setTransform(matrix);
     69 }
     70 
     71 static void android_view_HardwareLayer_setSurfaceTexture(JNIEnv* env, jobject clazz,
     72         jlong layerUpdaterPtr, jobject surface, jboolean isAlreadyAttached) {
     73     DeferredLayerUpdater* layer = reinterpret_cast<DeferredLayerUpdater*>(layerUpdaterPtr);
     74     sp<GLConsumer> surfaceTexture(SurfaceTexture_getSurfaceTexture(env, surface));
     75     layer->setSurfaceTexture(surfaceTexture, !isAlreadyAttached);
     76 }
     77 
     78 static void android_view_HardwareLayer_updateSurfaceTexture(JNIEnv* env, jobject clazz,
     79         jlong layerUpdaterPtr) {
     80     DeferredLayerUpdater* layer = reinterpret_cast<DeferredLayerUpdater*>(layerUpdaterPtr);
     81     layer->updateTexImage();
     82 }
     83 
     84 static jint android_view_HardwareLayer_getTexName(JNIEnv* env, jobject clazz,
     85         jlong layerUpdaterPtr) {
     86     DeferredLayerUpdater* layer = reinterpret_cast<DeferredLayerUpdater*>(layerUpdaterPtr);
     87     return layer->backingLayer()->getTexture();
     88 }
     89 
     90 #endif // USE_OPENGL_RENDERER
     91 
     92 // ----------------------------------------------------------------------------
     93 // JNI Glue
     94 // ----------------------------------------------------------------------------
     95 
     96 const char* const kClassPathName = "android/view/HardwareLayer";
     97 
     98 static JNINativeMethod gMethods[] = {
     99 #ifdef USE_OPENGL_RENDERER
    100 
    101     { "nPrepare",                "(JIIZ)Z",    (void*) android_view_HardwareLayer_prepare },
    102     { "nSetLayerPaint",          "(JJ)V",      (void*) android_view_HardwareLayer_setLayerPaint },
    103     { "nSetTransform",           "(JJ)V",      (void*) android_view_HardwareLayer_setTransform },
    104     { "nSetSurfaceTexture",      "(JLandroid/graphics/SurfaceTexture;Z)V",
    105             (void*) android_view_HardwareLayer_setSurfaceTexture },
    106     { "nUpdateSurfaceTexture",   "(J)V",       (void*) android_view_HardwareLayer_updateSurfaceTexture },
    107 
    108     { "nGetTexName",             "(J)I",       (void*) android_view_HardwareLayer_getTexName },
    109 #endif
    110 };
    111 
    112 int register_android_view_HardwareLayer(JNIEnv* env) {
    113     return AndroidRuntime::registerNativeMethods(env, kClassPathName, gMethods, NELEM(gMethods));
    114 }
    115 
    116 };
    117