Example #1
0
static bool Bitmap_compress(JNIEnv* env, jobject clazz, SkBitmap* bitmap,
                            int format, int quality,
                            jobject jstream, jbyteArray jstorage) {
    SkImageEncoder::Type fm;

    switch (format) {
    case kJPEG_JavaEncodeFormat:
        fm = SkImageEncoder::kJPEG_Type;
        break;
    case kPNG_JavaEncodeFormat:
        fm = SkImageEncoder::kPNG_Type;
        break;
    case kWEBP_JavaEncodeFormat:
        fm = SkImageEncoder::kWEBP_Type;
        break;
    default:
        return false;
    }

    bool success = false;
    SkWStream* strm = CreateJavaOutputStreamAdaptor(env, jstream, jstorage);
    if (NULL != strm) {
        SkImageEncoder* encoder = SkImageEncoder::Create(fm);
        if (NULL != encoder) {
            success = encoder->encodeStream(strm, *bitmap, quality);
            delete encoder;
        }
        delete strm;
    }
    return success;
}
/******************************************************************************
*   convert rgb565 to jpeg file 
*******************************************************************************/
bool rgb565toJpeg(uint8_t *pbufIn, uint8_t *pbufOut, uint32_t width, uint32_t height, uint32_t *psize)
{
    uint32_t size = 0;

    // It's sw encode, the buffer address must be virtual address
    CAM_LOGD("[rgb565toJpeg] pbufIn: 0x%x, pbufOut: 0x%x, width: %d, height: %d \n", (uint32_t) pbufIn, (uint32_t) pbufOut, width, height);

    SkImageEncoder::Type fm =  SkImageEncoder::kJPEG_Type;
    bool success = false;
    SkImageEncoder *pencoder = SkImageEncoder::Create(fm);
    if (NULL != pencoder) {
        SkMemoryWStream *pskMemStream = new SkMemoryWStream(pbufOut, width * height * 2);
        if (NULL != pskMemStream) {
            SkBitmap *pbitmap = new SkBitmap;
            if (NULL != pbitmap) {
                pbitmap->setConfig(SkBitmap::kRGB_565_Config, width, height);
                pbitmap->setPixels(pbufIn);
                success = pencoder->encodeStream(pskMemStream, *pbitmap, 85);
                if (success) {
                    size = pskMemStream->getBytesWritten();
                }
            }
            delete pbitmap;
        }
        delete pskMemStream;
        delete pencoder;
    }

    *psize = size;
    CAM_LOGD(" size: %d \n", size);
    return success;
}
Example #3
0
static jboolean Bitmap_compress(JNIEnv* env, jobject clazz, jlong bitmapHandle,
                                jint format, jint quality,
                                jobject jstream, jbyteArray jstorage) {
    SkBitmap* bitmap = reinterpret_cast<SkBitmap*>(bitmapHandle);
    SkImageEncoder::Type fm;

    switch (format) {
    case kJPEG_JavaEncodeFormat:
        fm = SkImageEncoder::kJPEG_Type;
        break;
    case kPNG_JavaEncodeFormat:
        fm = SkImageEncoder::kPNG_Type;
        break;
    case kWEBP_JavaEncodeFormat:
        fm = SkImageEncoder::kWEBP_Type;
        break;
    default:
        return JNI_FALSE;
    }

    bool success = false;
    if (NULL != bitmap) {
        SkAutoLockPixels alp(*bitmap);

        if (NULL == bitmap->getPixels()) {
            return JNI_FALSE;
        }

        SkWStream* strm = CreateJavaOutputStreamAdaptor(env, jstream, jstorage);
        if (NULL == strm) {
            return JNI_FALSE;
        }

        SkImageEncoder* encoder = SkImageEncoder::Create(fm);
        if (NULL != encoder) {
            success = encoder->encodeStream(strm, *bitmap, quality);
            delete encoder;
        }
        delete strm;
    }
    return success ? JNI_TRUE : JNI_FALSE;
}