diff options
Diffstat (limited to 'Ministro/jni/extract.cpp')
| -rw-r--r-- | Ministro/jni/extract.cpp | 178 |
1 files changed, 178 insertions, 0 deletions
diff --git a/Ministro/jni/extract.cpp b/Ministro/jni/extract.cpp new file mode 100644 index 0000000..a125bfc --- /dev/null +++ b/Ministro/jni/extract.cpp @@ -0,0 +1,178 @@ +/* + Copyright (c) 2011, BogDan Vatra <bog_dan_ro@yahoo.com> + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation, either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. +*/ + +#include <jni.h> +#include <android/log.h> +#include <extract.h> +#include <alloca.h> + +#define LOG_TAG "extractSyleInfo" +#define LOGI(...) __android_log_print(ANDROID_LOG_INFO,LOG_TAG,__VA_ARGS__) +#define LOGE(...) __android_log_print(ANDROID_LOG_ERROR,LOG_TAG,__VA_ARGS__) +#define LOGF(...) __android_log_print(ANDROID_LOG_FATAL,LOG_TAG,__VA_ARGS__) + +const char * const NinePatchDrawableClassName = "android/graphics/drawable/NinePatchDrawable"; +const char * const NinePatchFieldIDName = "mNinePatch"; +static jfieldID m_ninePatchFieldID=0; + +const char * const NinePatchClassName = "android/graphics/NinePatch"; +const char * const ChunkFieldIDName = "mChunk"; +static jfieldID m_chunkFieldID=0; + +const char * const ClipStateClassName = "android/graphics/drawable/ClipDrawable$ClipState"; +const char * const ClipStateDrawableFieldIDName = "mDrawable"; +static jfieldID m_clipStateDrawableFieldID=0; + +bool setup(JNIEnv * env, jobject /*obj*/) +{ + jclass ninePatchClass = env->FindClass(NinePatchClassName); + if (!ninePatchClass) + { + LOGF("Unable to find class '%s'", NinePatchClassName); + return JNI_FALSE; + } + + m_chunkFieldID = env->GetFieldID(ninePatchClass, ChunkFieldIDName, "[B"); + if(!m_chunkFieldID) + { + LOGF("Unable to find field '%s'", ChunkFieldIDName); + return JNI_FALSE; + } + + jclass ninePatchDrawableClass = env->FindClass(NinePatchDrawableClassName); + if (!ninePatchDrawableClass) + { + LOGF("Unable to find class '%s'", NinePatchDrawableClassName); + return JNI_FALSE; + } + + m_ninePatchFieldID = env->GetFieldID(ninePatchDrawableClass, NinePatchFieldIDName, "Landroid/graphics/NinePatch;"); + if(!m_ninePatchFieldID) + { + LOGF("Unable to find field '%s'", NinePatchFieldIDName); + return JNI_FALSE; + } + + jclass clipStateDrawableClass = env->FindClass(ClipStateClassName); + if (!clipStateDrawableClass) + { + LOGF("Unable to find class '%s'", ClipStateClassName); + return JNI_FALSE; + } + + m_clipStateDrawableFieldID = env->GetFieldID(clipStateDrawableClass, ClipStateDrawableFieldIDName, "Landroid/graphics/drawable/Drawable;"); + if(!m_ninePatchFieldID) + { + LOGF("Unable to find field '%s'", NinePatchFieldIDName); + return JNI_FALSE; + } + + return JNI_TRUE; +} + +static void printChunkInformation(Res_png_9patch* chunk) +{ + LOGI("printChunkInformation x:%d , y:%d",chunk->numXDivs, chunk->numYDivs); + for (int x = 0; x < chunk->numXDivs; x ++) + LOGI("X CHUNK %d %d", x, chunk->xDivs[x]); + for (int y = 0; y < chunk->numYDivs; y ++) + LOGI("Y CHUNK %d %d", y, chunk->yDivs[y]); + LOGI("----"); +} + +extern "C" JNIEXPORT jintArray JNICALL Java_org_kde_necessitas_ministro_ExtractStyle_extractChunkInfo(JNIEnv * env, jobject obj, jbyteArray chunkObj) +{ + size_t chunkSize = env->GetArrayLength(chunkObj); + void* storage = alloca(chunkSize); + env->GetByteArrayRegion(chunkObj, 0, chunkSize, + reinterpret_cast<jbyte*>(storage)); + + if (!env->ExceptionCheck()) + { + // need to deserialize the chunk + Res_png_9patch* chunk = static_cast<Res_png_9patch*>(storage); + Res_png_9patch::deserialize(chunk); +// printChunkInformation(chunk); + jintArray result; + size_t size = 3+chunk->numXDivs+chunk->numYDivs+chunk->numColors; + result = env->NewIntArray(size); + if (!result) + return 0; + + jint *data = (jint*)malloc(sizeof(jint)*size); + size_t pos = 0; + data[pos++]=chunk->numXDivs; + data[pos++]=chunk->numYDivs; + data[pos++]=chunk->numColors; + for (int x = 0; x <chunk->numXDivs; x ++) + data[pos++]=chunk->xDivs[x]; + for (int y = 0; y <chunk->numYDivs; y ++) + data[pos++]=chunk->yDivs[y]; + for (int c = 0; c <chunk->numColors; c ++) + data[pos++]=chunk->colors[c]; + env->SetIntArrayRegion(result, 0, size, data); + free(data); + return result; + } + return 0; +} + +extern "C" JNIEXPORT jintArray JNICALL Java_org_kde_necessitas_ministro_ExtractStyle_extract9PatchInfo(JNIEnv * env, jobject obj, jobject ninePatchObject) +{ + if (!m_ninePatchFieldID || !m_chunkFieldID) + if (!setup(env, obj)) + return 0; + return Java_org_kde_necessitas_ministro_ExtractStyle_extractChunkInfo(env, obj + ,reinterpret_cast<jbyteArray>(env->GetObjectField( + env->GetObjectField(ninePatchObject, m_ninePatchFieldID) + , m_chunkFieldID)) ); +} + +extern "C" JNIEXPORT jobject JNICALL Java_org_kde_necessitas_ministro_ExtractStyle_getClipStateDrawableObject(JNIEnv * env, jobject obj, jobject clipStateObject) +{ + if (!m_ninePatchFieldID || !m_chunkFieldID || !m_clipStateDrawableFieldID) + if (!setup(env, obj)) + return 0; + return env->GetObjectField(clipStateObject, m_clipStateDrawableFieldID); +} + +// The following part was shamelessly stolen from ResourceTypes.cpp Android's sources +static void deserializeInternal(const void* inData, Res_png_9patch* outData) { + char* patch = (char*) inData; + if (inData != outData) { + memmove(&outData->wasDeserialized, patch, 4); // copy wasDeserialized, numXDivs, numYDivs, numColors + memmove(&outData->paddingLeft, patch + 12, 4); // copy wasDeserialized, numXDivs, numYDivs, numColors + } + outData->wasDeserialized = true; + char* data = (char*)outData; + data += sizeof(Res_png_9patch); + outData->xDivs = (int32_t*) data; + data += outData->numXDivs * sizeof(int32_t); + outData->yDivs = (int32_t*) data; + data += outData->numYDivs * sizeof(int32_t); + outData->colors = (uint32_t*) data; +} + +Res_png_9patch* Res_png_9patch::deserialize(const void* inData) +{ + if (sizeof(void*) != sizeof(int32_t)) { + LOGE("Cannot deserialize on non 32-bit system\n"); + return NULL; + } + deserializeInternal(inData, (Res_png_9patch*) inData); + return (Res_png_9patch*) inData; +} |