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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 "core_jni_helpers.h"
     24 #include <android_runtime/android_graphics_SurfaceTexture.h>
     25 
     26 #include <gui/GLConsumer.h>
     27 #include <hwui/Paint.h>
     28 
     29 #include <SkBitmap.h>
     30 #include <SkCanvas.h>
     31 #include <SkMatrix.h>
     32 #include <SkBlendMode.h>
     33 
     34 #include <DeferredLayerUpdater.h>
     35 #include <SkiaShader.h>
     36 #include <Rect.h>
     37 #include <RenderNode.h>
     38 
     39 namespace android {
     40 
     41 using namespace uirenderer;
     42 
     43 static jboolean TextureLayer_prepare(JNIEnv* env, jobject clazz,
     44         jlong layerUpdaterPtr, jint width, jint height, jboolean isOpaque) {
     45     DeferredLayerUpdater* layer = reinterpret_cast<DeferredLayerUpdater*>(layerUpdaterPtr);
     46     bool changed = false;
     47     changed |= layer->setSize(width, height);
     48     changed |= layer->setBlend(!isOpaque);
     49     return changed;
     50 }
     51 
     52 static void TextureLayer_setLayerPaint(JNIEnv* env, jobject clazz,
     53         jlong layerUpdaterPtr, jlong paintPtr) {
     54     DeferredLayerUpdater* layer = reinterpret_cast<DeferredLayerUpdater*>(layerUpdaterPtr);
     55     if (layer) {
     56         Paint* paint = reinterpret_cast<Paint*>(paintPtr);
     57         layer->setPaint(paint);
     58     }
     59 }
     60 
     61 static void TextureLayer_setTransform(JNIEnv* env, jobject clazz,
     62         jlong layerUpdaterPtr, jlong matrixPtr) {
     63     DeferredLayerUpdater* layer = reinterpret_cast<DeferredLayerUpdater*>(layerUpdaterPtr);
     64     SkMatrix* matrix = reinterpret_cast<SkMatrix*>(matrixPtr);
     65     layer->setTransform(matrix);
     66 }
     67 
     68 static void TextureLayer_setSurfaceTexture(JNIEnv* env, jobject clazz,
     69         jlong layerUpdaterPtr, jobject surface) {
     70     DeferredLayerUpdater* layer = reinterpret_cast<DeferredLayerUpdater*>(layerUpdaterPtr);
     71     sp<GLConsumer> surfaceTexture(SurfaceTexture_getSurfaceTexture(env, surface));
     72     layer->setSurfaceTexture(surfaceTexture);
     73 }
     74 
     75 static void TextureLayer_updateSurfaceTexture(JNIEnv* env, jobject clazz,
     76         jlong layerUpdaterPtr) {
     77     DeferredLayerUpdater* layer = reinterpret_cast<DeferredLayerUpdater*>(layerUpdaterPtr);
     78     layer->updateTexImage();
     79 }
     80 
     81 // ----------------------------------------------------------------------------
     82 // JNI Glue
     83 // ----------------------------------------------------------------------------
     84 
     85 const char* const kClassPathName = "android/view/TextureLayer";
     86 
     87 static const JNINativeMethod gMethods[] = {
     88     { "nPrepare",                "(JIIZ)Z",    (void*) TextureLayer_prepare },
     89     { "nSetLayerPaint",          "(JJ)V",      (void*) TextureLayer_setLayerPaint },
     90     { "nSetTransform",           "(JJ)V",      (void*) TextureLayer_setTransform },
     91     { "nSetSurfaceTexture",      "(JLandroid/graphics/SurfaceTexture;)V",
     92             (void*) TextureLayer_setSurfaceTexture },
     93     { "nUpdateSurfaceTexture",   "(J)V",       (void*) TextureLayer_updateSurfaceTexture },
     94 };
     95 
     96 int register_android_view_TextureLayer(JNIEnv* env) {
     97     return RegisterMethodsOrDie(env, kClassPathName, gMethods, NELEM(gMethods));
     98 }
     99 
    100 };
    101