libjnigraphics.so 원 소스 orignal source

frameworks/base/native/graphics/jni/bitmap.cpp

#include <android/bitmap.h> #include <GraphicsJNI.h> int AndroidBitmap_getInfo(JNIEnv* env, jobject jbitmap, AndroidBitmapInfo* info) { if (NULL == env || NULL == jbitmap) { return ANDROID_BITMAP_RESULT_BAD_PARAMETER; } SkBitmap* bm = GraphicsJNI::getNativeBitmap(env, jbitmap); if (NULL == bm) { return ANDROID_BITMAP_RESULT_JNI_EXCEPTION; } if (info) { info->width = bm->width(); info->height = bm->height(); info->stride = bm->rowBytes(); info->flags = 0; switch (bm->config()) { case SkBitmap::kARGB_8888_Config: info->format = ANDROID_BITMAP_FORMAT_RGBA_8888; break; case SkBitmap::kRGB_565_Config: info->format = ANDROID_BITMAP_FORMAT_RGB_565; break; case SkBitmap::kARGB_4444_Config: info->format = ANDROID_BITMAP_FORMAT_RGBA_4444; break; case SkBitmap::kA8_Config: info->format = ANDROID_BITMAP_FORMAT_A_8; break; default: info->format = ANDROID_BITMAP_FORMAT_NONE; break; } } return ANDROID_BITMAP_RESUT_SUCCESS; } int AndroidBitmap_lockPixels(JNIEnv* env, jobject jbitmap, void** addrPtr) { if (NULL == env || NULL == jbitmap) { return ANDROID_BITMAP_RESULT_BAD_PARAMETER; } SkBitmap* bm = GraphicsJNI::getNativeBitmap(env, jbitmap); if (NULL == bm) { return ANDROID_BITMAP_RESULT_JNI_EXCEPTION; } bm->lockPixels(); void* addr = bm->getPixels(); if (NULL == addr) { bm->unlockPixels(); return ANDROID_BITMAP_RESULT_ALLOCATION_FAILED; } if (addrPtr) { *addrPtr = addr; } return ANDROID_BITMAP_RESUT_SUCCESS; } int AndroidBitmap_unlockPixels(JNIEnv* env, jobject jbitmap) { if (NULL == env || NULL == jbitmap) { return ANDROID_BITMAP_RESULT_BAD_PARAMETER; } SkBitmap* bm = GraphicsJNI::getNativeBitmap(env, jbitmap); if (NULL == bm) { return ANDROID_BITMAP_RESULT_JNI_EXCEPTION; } bm->unlockPixels(); return ANDROID_BITMAP_RESUT_SUCCESS; }