android_view_GLES20Canvas.cpp revision bb9524b6bdddc7ac77d8628daa8b366b8a7be4a4 
1/*
2 * Copyright (C) 2010 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#include "jni.h"
18#include <nativehelper/JNIHelp.h>
19#include <android_runtime/AndroidRuntime.h>
20
21#include <SkXfermode.h>
22
23#include <OpenGLRenderer.h>
24
25#define UI ((OpenGLRenderer*) renderer)
26
27namespace android {
28
29// ----------------------------------------------------------------------------
30// Constructors
31// ----------------------------------------------------------------------------
32
33static OpenGLRenderer* android_view_GLES20Renderer_createRenderer(JNIEnv* env, jobject canvas) {
34    return new OpenGLRenderer;
35}
36
37static void android_view_GLES20Renderer_destroyRenderer(JNIEnv* env, jobject canvas, jint renderer) {
38    delete UI;
39}
40
41// ----------------------------------------------------------------------------
42// Setup
43// ----------------------------------------------------------------------------
44
45static void android_view_GLES20Renderer_setViewport(JNIEnv* env, jobject canvas, jint renderer,
46        jint width, jint height) {
47
48    UI->setViewport(width, height);
49}
50
51static void android_view_GLES20Renderer_prepare(JNIEnv* env, jobject canvas, jint renderer) {
52
53    UI->prepare();
54}
55
56// ----------------------------------------------------------------------------
57// State
58// ----------------------------------------------------------------------------
59
60static jint android_view_GLES20Renderer_save(JNIEnv* env, jobject canvas, jint renderer,
61        jint flags) {
62
63    return UI->save(flags);
64}
65
66static jint android_view_GLES20Renderer_getSaveCount(JNIEnv* env, jobject canvas, jint renderer) {
67    return UI->getSaveCount();
68}
69
70static void android_view_GLES20Renderer_restore(JNIEnv* env, jobject canvas, jint renderer) {
71    UI->restore();
72}
73
74static void android_view_GLES20Renderer_restoreToCount(JNIEnv* env, jobject canvas, jint renderer,
75        jint saveCount) {
76
77    UI->restoreToCount(saveCount);
78}
79
80// ----------------------------------------------------------------------------
81// Clipping
82// ----------------------------------------------------------------------------
83
84static bool android_view_GLES20Renderer_clipRectF(JNIEnv* env, jobject canvas, jint renderer,
85        jfloat left, jfloat top, jfloat right, jfloat bottom) {
86
87    return UI->clipRect(left, top, right, bottom);
88}
89
90static bool android_view_GLES20Renderer_clipRect(JNIEnv* env, jobject canvas, jint renderer,
91        jint left, jint top, jint right, jint bottom) {
92
93    return UI->clipRect(float(left), float(top), float(right), float(bottom));
94}
95
96// ----------------------------------------------------------------------------
97// Drawing
98// ----------------------------------------------------------------------------
99
100static void android_view_GLES20Renderer_drawColor(JNIEnv* env, jobject canvas, jint renderer,
101        jint color, jint mode) {
102
103    UI->drawColor(color, (SkXfermode::Mode) mode);
104}
105
106// ----------------------------------------------------------------------------
107// JNI Glue
108// ----------------------------------------------------------------------------
109
110const char* const kClassPathName = "android/view/GLES20Canvas";
111
112static JNINativeMethod gMethods[] = {
113    {   "nCreateRenderer",    "()I",      (void*) android_view_GLES20Renderer_createRenderer },
114    {   "nDestroyRenderer",   "(I)V",     (void*) android_view_GLES20Renderer_destroyRenderer },
115    {   "nSetViewport",       "(III)V",   (void*) android_view_GLES20Renderer_setViewport },
116    {   "nPrepare",           "(I)V",     (void*) android_view_GLES20Renderer_prepare },
117
118    {   "nSave",              "(II)I",    (void*) android_view_GLES20Renderer_save },
119    {   "nRestore",           "(I)V",     (void*) android_view_GLES20Renderer_restore },
120    {   "nRestoreToCount",    "(II)V",    (void*) android_view_GLES20Renderer_restoreToCount },
121    {   "nGetSaveCount",      "(I)I",     (void*) android_view_GLES20Renderer_getSaveCount },
122
123    {   "nClipRect",          "(IFFFF)Z", (void*) android_view_GLES20Renderer_clipRectF },
124    {   "nClipRect",          "(IIIII)Z", (void*) android_view_GLES20Renderer_clipRect },
125
126    {   "nDrawColor",         "(III)V",   (void*) android_view_GLES20Renderer_drawColor },
127};
128
129int register_android_view_GLES20Canvas(JNIEnv* env) {
130    return AndroidRuntime::registerNativeMethods(env, kClassPathName, gMethods, NELEM(gMethods));
131}
132
133};
134