Rasterizer.cpp revision dccca44ffda4836b56a21da95a046c9708ffd49c 
1/* libs/android_runtime/android/graphics/Rasterizer.cpp
2**
3** Copyright 2006, The Android Open Source Project
4**
5** Licensed under the Apache License, Version 2.0 (the "License");
6** you may not use this file except in compliance with the License.
7** You may obtain a copy of the License at
8**
9**     http://www.apache.org/licenses/LICENSE-2.0
10**
11** Unless required by applicable law or agreed to in writing, software
12** distributed under the License is distributed on an "AS IS" BASIS,
13** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14** See the License for the specific language governing permissions and
15** limitations under the License.
16*/
17
18// This file was generated from the C++ include file: SkRasterizer.h
19// Any changes made to this file will be discarded by the build.
20// To change this file, either edit the include, or device/tools/gluemaker/main.cpp,
21// or one of the auxilary file specifications in device/tools/gluemaker.
22
23#include "jni.h"
24#include "GraphicsJNI.h"
25#include "SkLayerRasterizer.h"
26#include "core_jni_helpers.h"
27
28#include <hwui/Paint.h>
29
30// Rasterizer.java holds a pointer (jlong) to this guy
31class NativeRasterizer {
32public:
33    NativeRasterizer() {}
34    virtual ~NativeRasterizer() {}
35
36    // Can return NULL, or a ref to the skia rasterizer.
37    virtual SkRasterizer* refRasterizer() { return NULL; }
38};
39
40class NativeLayerRasterizer : public NativeRasterizer {
41public:
42    SkLayerRasterizer::Builder fBuilder;
43
44    virtual SkRasterizer* refRasterizer() {
45        return fBuilder.snapshotRasterizer();
46    }
47};
48
49SkRasterizer* GraphicsJNI::refNativeRasterizer(jlong rasterizerHandle) {
50    NativeRasterizer* nr = reinterpret_cast<NativeRasterizer*>(rasterizerHandle);
51    return nr ? nr->refRasterizer() : NULL;
52}
53
54///////////////////////////////////////////////////////////////////////////////
55
56namespace android {
57
58class SkRasterizerGlue {
59public:
60    static void finalizer(JNIEnv* env, jobject clazz, jlong objHandle) {
61        delete reinterpret_cast<NativeRasterizer *>(objHandle);
62    }
63};
64
65static const JNINativeMethod gRasterizerMethods[] = {
66    {"finalizer", "(J)V", (void*) SkRasterizerGlue::finalizer}
67};
68
69int register_android_graphics_Rasterizer(JNIEnv* env) {
70    return RegisterMethodsOrDie(env, "android/graphics/Rasterizer", gRasterizerMethods,
71                                NELEM(gRasterizerMethods));
72}
73
74class SkLayerRasterizerGlue {
75public:
76    static jlong create(JNIEnv* env, jobject) {
77        return reinterpret_cast<jlong>(new NativeLayerRasterizer);
78    }
79
80    static void addLayer(JNIEnv* env, jobject, jlong layerHandle, jlong paintHandle, jfloat dx, jfloat dy) {
81        NativeLayerRasterizer* nr = reinterpret_cast<NativeLayerRasterizer *>(layerHandle);
82        const Paint* paint = reinterpret_cast<Paint *>(paintHandle);
83        SkASSERT(nr);
84        SkASSERT(paint);
85        nr->fBuilder.addLayer(*paint, dx, dy);
86    }
87};
88
89static const JNINativeMethod gLayerRasterizerMethods[] = {
90    { "nativeConstructor",  "()J",      (void*)SkLayerRasterizerGlue::create    },
91    { "nativeAddLayer",     "(JJFF)V",  (void*)SkLayerRasterizerGlue::addLayer  }
92};
93
94int register_android_graphics_LayerRasterizer(JNIEnv* env)
95{
96    return RegisterMethodsOrDie(env, "android/graphics/LayerRasterizer",
97                                gLayerRasterizerMethods, NELEM(gLayerRasterizerMethods));
98}
99
100}
101
102