static void Image_unlockIfLocked(JNIEnv* env, jobject thiz) {
ALOGV("%s", __FUNCTION__);
GraphicBuffer* buffer;
Image_getNativeContext(env, thiz, &buffer, NULL);
if (buffer == NULL) {
jniThrowException(env, "java/lang/IllegalStateException",
"Image is not initialized");
return;
}
// Is locked?
bool isLocked = false;
jobject planes = NULL;
if (!isFormatOpaque(buffer->getPixelFormat())) {
planes = env->GetObjectField(thiz, gSurfaceImageClassInfo.mPlanes);
}
isLocked = (planes != NULL);
if (isLocked) {
// no need to use fence here, as we it will be consumed by either cancel or queue buffer.
status_t res = buffer->unlock();
if (res != OK) {
jniThrowRuntimeException(env, "unlock buffer failed");
}
ALOGV("Successfully unlocked the image");
}
}
static jint Image_getFormat(JNIEnv* env, jobject thiz) {
ALOGV("%s", __FUNCTION__);
GraphicBuffer* buffer;
Image_getNativeContext(env, thiz, &buffer, NULL);
if (buffer == NULL) {
jniThrowException(env, "java/lang/IllegalStateException",
"Image is not initialized");
return 0;
}
return Image_getPixelFormat(env, buffer->getPixelFormat());
}
sp<CameraBuffer>
allocateGraphicBuffer(int w, int h, int gfxFmt, int cameraId, int usage)
{
LOG1("@%s", __FUNCTION__);
UNUSED(usage);
status_t status = OK;
void * mapperPointer = NULL;
int lockMode = GRALLOC_USAGE_SW_READ_OFTEN |
GRALLOC_USAGE_SW_WRITE_NEVER |
GRALLOC_USAGE_HW_CAMERA_READ |
GRALLOC_USAGE_HW_CAMERA_WRITE |
GRALLOC_USAGE_HW_COMPOSER;
LOG1("%s with these properties: (%dx%d) gfx format %d", __FUNCTION__,
w, h, gfxFmt);
GraphicBuffer *gfxBuffer = new GraphicBuffer
(w, h, gfxFmt,
GraphicBuffer::USAGE_HW_RENDER | GraphicBuffer::USAGE_SW_WRITE_OFTEN | \
GraphicBuffer::USAGE_HW_TEXTURE | GRALLOC_USAGE_HW_CAMERA_WRITE);
if (!gfxBuffer) {
LOGE("No memory to allocate graphic buffer");
return NULL;
}
ANativeWindowBuffer *nativeWinBuffer = gfxBuffer->getNativeBuffer();
status = gfxBuffer->lock(lockMode, &mapperPointer);
if (status != NO_ERROR) {
LOGE("@%s: Failed to lock GraphicBuffer! %d", __FUNCTION__, status);
return NULL;
}
if (w != nativeWinBuffer->stride) {
LOG1("%s: potential bpl problem requested %d, Gfx requries %d",
__FUNCTION__, w, nativeWinBuffer->stride);
} else {
LOG1("%s bpl from Gfx is %d", __FUNCTION__, nativeWinBuffer->stride);
}
CameraBuffer * buf =
new CameraBuffer(w, h, nativeWinBuffer->stride, gfxFmt, gfxBuffer, mapperPointer, cameraId);
gfxBuffer->incStrong(buf);
return buf;
}
static void Image_setNativeContext(JNIEnv* env, jobject thiz,
sp<GraphicBuffer> buffer, int fenceFd) {
ALOGV("%s:", __FUNCTION__);
GraphicBuffer* p = NULL;
Image_getNativeContext(env, thiz, &p, /*fenceFd*/NULL);
if (buffer != 0) {
buffer->incStrong((void*)Image_setNativeContext);
}
if (p) {
p->decStrong((void*)Image_setNativeContext);
}
env->SetLongField(thiz, gSurfaceImageClassInfo.mNativeBuffer,
reinterpret_cast<jlong>(buffer.get()));
env->SetIntField(thiz, gSurfaceImageClassInfo.mNativeFenceFd, reinterpret_cast<jint>(fenceFd));
}
static void Image_getLockedImage(JNIEnv* env, jobject thiz, LockedImage *image) {
ALOGV("%s", __FUNCTION__);
GraphicBuffer* buffer;
int fenceFd = -1;
Image_getNativeContext(env, thiz, &buffer, &fenceFd);
if (buffer == NULL) {
jniThrowException(env, "java/lang/IllegalStateException",
"Image is not initialized");
return;
}
void* pData = NULL;
android_ycbcr ycbcr = android_ycbcr();
status_t res;
int format = Image_getFormat(env, thiz);
int flexFormat = format;
if (isPossiblyYUV(format)) {
// ImageWriter doesn't use crop by itself, app sets it, use the no crop version.
res = buffer->lockAsyncYCbCr(GRALLOC_USAGE_SW_WRITE_OFTEN, &ycbcr, fenceFd);
// Clear the fenceFd as it is already consumed by lock call.
Image_setFenceFd(env, thiz, /*fenceFd*/-1);
if (res != OK) {
jniThrowRuntimeException(env, "lockAsyncYCbCr failed for YUV buffer");
return;
}
pData = ycbcr.y;
flexFormat = HAL_PIXEL_FORMAT_YCbCr_420_888;
}
// lockAsyncYCbCr for YUV is unsuccessful.
if (pData == NULL) {
res = buffer->lockAsync(GRALLOC_USAGE_SW_WRITE_OFTEN, &pData, fenceFd);
if (res != OK) {
jniThrowRuntimeException(env, "lockAsync failed");
return;
}
}
image->data = reinterpret_cast<uint8_t*>(pData);
image->width = buffer->getWidth();
image->height = buffer->getHeight();
image->format = format;
image->flexFormat = flexFormat;
image->stride = (ycbcr.y != NULL) ? static_cast<uint32_t>(ycbcr.ystride) : buffer->getStride();
image->dataCb = reinterpret_cast<uint8_t*>(ycbcr.cb);
image->dataCr = reinterpret_cast<uint8_t*>(ycbcr.cr);
image->chromaStride = static_cast<uint32_t>(ycbcr.cstride);
image->chromaStep = static_cast<uint32_t>(ycbcr.chroma_step);
ALOGV("Successfully locked the image");
// crop, transform, scalingMode, timestamp, and frameNumber should be set by producer,
// and we don't set them here.
}
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());
}
static jint android_hardware_HardwareBuffer_getLayers(JNIEnv* env,
jobject clazz, jlong nativeObject) {
GraphicBuffer* buffer = GraphicBufferWrapper_to_GraphicBuffer(nativeObject);
return static_cast<jint>(buffer->getLayerCount());
}
static jint android_hardware_HardwareBuffer_getFormat(JNIEnv* env,
jobject clazz, jlong nativeObject) {
GraphicBuffer* buffer = GraphicBufferWrapper_to_GraphicBuffer(nativeObject);
return static_cast<jint>(android_hardware_HardwareBuffer_convertFromPixelFormat(
buffer->getPixelFormat()));
}