static GraphicBuffer*
create_composible_buffer(int width, int height) {
uint32_t bufferFlags = GraphicBuffer::USAGE_SW_WRITE_RARELY | GraphicBuffer::USAGE_HW_COMPOSER;
GraphicBuffer* buffer = new GraphicBuffer(width, height, PIXEL_FORMAT_RGBA_8888, bufferFlags);
status_t err = buffer->initCheck();
if (err) {
LOGE("error creating GraphicBuffer: %s", strerror(-err));
return NULL;
}
Rect rect = buffer->getBounds();
LOGE("GraphicBuffer information");
LOGE("width : %d", buffer->getWidth());
LOGE("height: %d", buffer->getHeight());
LOGE("stride: %d", buffer->getStride());
LOGE("usage : 0x%08x", buffer->getUsage());
LOGE("format: %d", buffer->getPixelFormat());
LOGE("bounds: (%d,%d) - (%d,%d)", rect.left, rect.top, rect.right, rect.bottom);
return buffer;
}
static jlong android_hardware_HardwareBuffer_getUsage(JNIEnv* env,
jobject clazz, jlong nativeObject) {
GraphicBuffer* buffer = GraphicBufferWrapper_to_GraphicBuffer(nativeObject);
return AHardwareBuffer_convertFromGrallocUsageBits(buffer->getUsage());
}
