1 /*
   2  * Copyright (c) 2005, 2014, Oracle and/or its affiliates. All rights reserved.
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * This code is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 only, as
   7  * published by the Free Software Foundation.  Oracle designates this
   8  * particular file as subject to the "Classpath" exception as provided
   9  * by Oracle in the LICENSE file that accompanied this code.
  10  *
  11  * This code is distributed in the hope that it will be useful, but WITHOUT
  12  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  13  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  14  * version 2 for more details (a copy is included in the LICENSE file that
  15  * accompanied this code).
  16  *
  17  * You should have received a copy of the GNU General Public License version
  18  * 2 along with this work; if not, write to the Free Software Foundation,
  19  * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  20  *
  21  * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  22  * or visit www.oracle.com if you need additional information or have any
  23  * questions.
  24  */
  25 
  26 #include "splashscreen_impl.h"
  27 #include <jlong_md.h>
  28 #include <jni.h>
  29 #include <jni_util.h>
  30 #include <sizecalc.h>
  31 
  32 JNIEXPORT jint JNICALL
  33 JNI_OnLoad(JavaVM * vm, void *reserved)
  34 {
  35     return JNI_VERSION_1_2;
  36 }
  37 
  38 /* FIXME: safe_ExceptionOccured, why and how? */
  39 
  40 /*
  41 * Class:     java_awt_SplashScreen
  42 * Method:    _update
  43 * Signature: (J[IIIIII)V
  44 */
  45 JNIEXPORT void JNICALL
  46 Java_java_awt_SplashScreen__1update(JNIEnv * env, jclass thisClass,
  47                                     jlong jsplash, jintArray data,
  48                                     jint x, jint y, jint width, jint height,
  49                                     jint stride)
  50 {
  51     Splash *splash = (Splash *) jlong_to_ptr(jsplash);
  52     int dataSize;
  53 
  54     if (!splash) {
  55         return;
  56     }
  57     SplashLock(splash);
  58     dataSize = (*env)->GetArrayLength(env, data);
  59     if (splash->overlayData) {
  60         free(splash->overlayData);
  61     }
  62     splash->overlayData = SAFE_SIZE_ARRAY_ALLOC(malloc, dataSize, sizeof(rgbquad_t));
  63     if (splash->overlayData) {
  64         /* we need a copy anyway, so we'll be using GetIntArrayRegion */
  65         (*env)->GetIntArrayRegion(env, data, 0, dataSize,
  66             (jint *) splash->overlayData);
  67         initFormat(&splash->overlayFormat, 0xFF0000, 0xFF00, 0xFF, 0xFF000000);
  68         initRect(&splash->overlayRect, x, y, width, height, 1,
  69             stride * sizeof(rgbquad_t), splash->overlayData,
  70             &splash->overlayFormat);
  71         SplashUpdate(splash);
  72     }
  73     SplashUnlock(splash);
  74 }
  75 
  76 
  77 /*
  78 * Class:     java_awt_SplashScreen
  79 * Method:    _isVisible
  80 * Signature: (J)Z
  81 */
  82 JNIEXPORT jboolean JNICALL
  83 Java_java_awt_SplashScreen__1isVisible(JNIEnv * env, jclass thisClass,
  84                                        jlong jsplash)
  85 {
  86     Splash *splash = (Splash *) jlong_to_ptr(jsplash);
  87 
  88     if (!splash) {
  89         return JNI_FALSE;
  90     }
  91     return splash->isVisible>0 ? JNI_TRUE : JNI_FALSE;
  92 }
  93 
  94 /*
  95 * Class:     java_awt_SplashScreen
  96 * Method:    _getBounds
  97 * Signature: (J)Ljava/awt/Rectangle;
  98 */
  99 JNIEXPORT jobject JNICALL
 100 Java_java_awt_SplashScreen__1getBounds(JNIEnv * env, jclass thisClass,
 101                                        jlong jsplash)
 102 {
 103     Splash *splash = (Splash *) jlong_to_ptr(jsplash);
 104     static jclass clazz = NULL;
 105     static jmethodID mid = NULL;
 106     jobject bounds = NULL;
 107 
 108     if (!splash) {
 109         return NULL;
 110     }
 111     SplashLock(splash);
 112     if (!clazz) {
 113         clazz = (*env)->FindClass(env, "java/awt/Rectangle");
 114         if (clazz) {
 115             clazz = (*env)->NewGlobalRef(env, clazz);
 116         }
 117     }
 118     if (clazz && !mid) {
 119         mid = (*env)->GetMethodID(env, clazz, "<init>", "(IIII)V");
 120     }
 121     if (clazz && mid) {
 122         bounds = (*env)->NewObject(env, clazz, mid, splash->x, splash->y,
 123             splash->width, splash->height);
 124         if ((*env)->ExceptionOccurred(env)) {
 125             bounds = NULL;
 126             (*env)->ExceptionDescribe(env);
 127             (*env)->ExceptionClear(env);
 128         }
 129     }
 130     SplashUnlock(splash);
 131     return bounds;
 132 }
 133 
 134 /*
 135 * Class:     java_awt_SplashScreen
 136 * Method:    _getInstance
 137 * Signature: ()J
 138 */
 139 JNIEXPORT jlong JNICALL
 140 Java_java_awt_SplashScreen__1getInstance(JNIEnv * env, jclass thisClass)
 141 {
 142     return ptr_to_jlong(SplashGetInstance());
 143 }
 144 
 145 /*
 146 * Class:     java_awt_SplashScreen
 147 * Method:    _close
 148 * Signature: (J)V
 149 */
 150 JNIEXPORT void JNICALL
 151 Java_java_awt_SplashScreen__1close(JNIEnv * env, jclass thisClass,
 152                                    jlong jsplash)
 153 {
 154     Splash *splash = (Splash *) jlong_to_ptr(jsplash);
 155 
 156     if (!splash) {
 157         return;
 158     }
 159     SplashLock(splash);
 160     SplashClosePlatform(splash);
 161     SplashUnlock(splash);
 162 }
 163 
 164 /*
 165  * Class:     java_awt_SplashScreen
 166  * Method:    _getImageFileName
 167  * Signature: (J)Ljava/lang/String;
 168  */
 169 JNIEXPORT jstring JNICALL Java_java_awt_SplashScreen__1getImageFileName
 170     (JNIEnv * env, jclass thisClass, jlong jsplash)
 171 {
 172     Splash *splash = (Splash *) jlong_to_ptr(jsplash);
 173 
 174 
 175     if (!splash || !splash->fileName) {
 176         return NULL;
 177     }
 178     /* splash->fileName is of type char*, but in fact it contains jchars */
 179     return (*env)->NewString(env, (const jchar*)splash->fileName,
 180                              splash->fileNameLen);
 181 }
 182 
 183 /*
 184  * Class:     java_awt_SplashScreen
 185  * Method:    _getImageJarName
 186  * Signature: (J)Ljava/lang/String;
 187  */
 188 JNIEXPORT jstring JNICALL Java_java_awt_SplashScreen__1getImageJarName
 189   (JNIEnv * env, jclass thisClass, jlong jsplash)
 190 {
 191     Splash *splash = (Splash *) jlong_to_ptr(jsplash);
 192 
 193     if (!splash || !splash->jarName) {
 194         return NULL;
 195     }
 196     /* splash->jarName is of type char*, but in fact it contains jchars */
 197     return (*env)->NewString(env, (const jchar*)splash->jarName,
 198                              splash->jarNameLen);
 199 }
 200 
 201 /*
 202  * Class:     java_awt_SplashScreen
 203  * Method:    _setImageData
 204  * Signature: (J[B)Z
 205  */
 206 JNIEXPORT jboolean JNICALL Java_java_awt_SplashScreen__1setImageData
 207   (JNIEnv * env, jclass thisClass, jlong jsplash, jbyteArray data)
 208 {
 209     Splash *splash = (Splash *) jlong_to_ptr(jsplash);
 210     int size, rc;
 211     jbyte* pBytes;
 212 
 213     if (!splash) {
 214         return JNI_FALSE;
 215     }
 216     pBytes = (*env)->GetByteArrayElements(env, data, NULL);
 217     CHECK_NULL_RETURN(pBytes, JNI_FALSE);
 218     size = (*env)->GetArrayLength(env, data);
 219     rc = SplashLoadMemory(pBytes, size);
 220     (*env)->ReleaseByteArrayElements(env, data, pBytes, JNI_ABORT);
 221     return rc ? JNI_TRUE : JNI_FALSE;
 222 }
 223 
 224 /*
 225  * Class:     java_awt_SplashScreen
 226  * Method:    _getScaleFactor
 227  * Signature: (J)F
 228  */
 229 JNIEXPORT jfloat JNICALL Java_java_awt_SplashScreen__1getScaleFactor
 230 (JNIEnv *env, jclass thisClass, jlong jsplash)
 231 {
 232     Splash *splash = (Splash *) jlong_to_ptr(jsplash);
 233     if (!splash) {
 234         return 1;
 235     }
 236     return splash->scaleFactor;
 237 }