Jiwen 'Steve' Cai | a8049a2 | 2018-03-28 15:14:02 -0700 | [diff] [blame] | 1 | #include <private/dvr/detached_buffer.h> |
| 2 | |
| 3 | #include <pdx/file_handle.h> |
| 4 | #include <ui/DetachedBufferHandle.h> |
| 5 | |
| 6 | using android::pdx::LocalHandle; |
| 7 | |
| 8 | namespace android { |
| 9 | namespace dvr { |
| 10 | |
| 11 | DetachedBuffer::DetachedBuffer(uint32_t width, uint32_t height, |
| 12 | uint32_t layer_count, uint32_t format, |
| 13 | uint64_t usage, size_t user_metadata_size) { |
| 14 | ATRACE_NAME("DetachedBuffer::DetachedBuffer"); |
| 15 | ALOGD_IF(TRACE, |
| 16 | "DetachedBuffer::DetachedBuffer: width=%u height=%u layer_count=%u, " |
| 17 | "format=%u usage=%" PRIx64 " user_metadata_size=%zu", |
| 18 | width, height, layer_count, format, usage, user_metadata_size); |
| 19 | |
| 20 | auto status = client_.InvokeRemoteMethod<DetachedBufferRPC::Create>( |
| 21 | width, height, layer_count, format, usage, user_metadata_size); |
| 22 | if (!status) { |
| 23 | ALOGE( |
| 24 | "DetachedBuffer::DetachedBuffer: Failed to create detached buffer: %s", |
| 25 | status.GetErrorMessage().c_str()); |
| 26 | client_.Close(-status.error()); |
| 27 | } |
| 28 | |
| 29 | const int ret = ImportGraphicBuffer(); |
| 30 | if (ret < 0) { |
| 31 | ALOGE("DetachedBuffer::DetachedBuffer: Failed to import buffer: %s", |
| 32 | strerror(-ret)); |
| 33 | client_.Close(ret); |
| 34 | } |
| 35 | } |
| 36 | |
| 37 | DetachedBuffer::DetachedBuffer(LocalChannelHandle channel_handle) |
| 38 | : client_(std::move(channel_handle)) { |
| 39 | const int ret = ImportGraphicBuffer(); |
| 40 | if (ret < 0) { |
| 41 | ALOGE("DetachedBuffer::DetachedBuffer: Failed to import buffer: %s", |
| 42 | strerror(-ret)); |
| 43 | client_.Close(ret); |
| 44 | } |
| 45 | } |
| 46 | |
| 47 | int DetachedBuffer::ImportGraphicBuffer() { |
| 48 | ATRACE_NAME("DetachedBuffer::DetachedBuffer"); |
| 49 | |
| 50 | auto status = client_.InvokeRemoteMethod<DetachedBufferRPC::Import>(); |
| 51 | if (!status) { |
| 52 | ALOGE("DetachedBuffer::DetachedBuffer: Failed to import GraphicBuffer: %s", |
| 53 | status.GetErrorMessage().c_str()); |
| 54 | return -status.error(); |
| 55 | } |
| 56 | |
| 57 | BufferDescription<LocalHandle> buffer_desc = status.take(); |
| 58 | if (buffer_desc.id() < 0) { |
| 59 | ALOGE("DetachedBuffer::DetachedBuffer: Received an invalid id!"); |
| 60 | return -EIO; |
| 61 | } |
| 62 | |
| 63 | // Stash the buffer id to replace the value in id_. |
| 64 | const int buffer_id = buffer_desc.id(); |
| 65 | |
| 66 | // Import the buffer. |
| 67 | IonBuffer ion_buffer; |
| 68 | ALOGD_IF(TRACE, "DetachedBuffer::DetachedBuffer: id=%d.", buffer_id); |
| 69 | |
| 70 | if (const int ret = buffer_desc.ImportBuffer(&ion_buffer)) { |
| 71 | ALOGE("Failed to import GraphicBuffer, error=%d", ret); |
| 72 | return ret; |
| 73 | } |
| 74 | |
| 75 | // If all imports succeed, replace the previous buffer and id. |
| 76 | id_ = buffer_id; |
| 77 | buffer_ = std::move(ion_buffer); |
| 78 | return 0; |
| 79 | } |
| 80 | |
| 81 | std::unique_ptr<BufferProducer> DetachedBuffer::Promote() { |
| 82 | ALOGE("DetachedBuffer::Promote: Not implemented."); |
| 83 | return nullptr; |
| 84 | } |
| 85 | |
| 86 | sp<GraphicBuffer> DetachedBuffer::TakeGraphicBuffer() { |
| 87 | if (!client_.IsValid() || !buffer_.buffer()) { |
| 88 | ALOGE("DetachedBuffer::TakeGraphicBuffer: Invalid buffer."); |
| 89 | return nullptr; |
| 90 | } |
| 91 | |
| 92 | // Technically this should never happen. |
| 93 | LOG_FATAL_IF( |
| 94 | buffer_.buffer()->isDetachedBuffer(), |
| 95 | "DetachedBuffer::TakeGraphicBuffer: GraphicBuffer is already detached."); |
| 96 | |
| 97 | sp<GraphicBuffer> buffer = std::move(buffer_.buffer()); |
| 98 | buffer->setDetachedBufferHandle( |
| 99 | DetachedBufferHandle::Create(client_.TakeChannelHandle())); |
| 100 | return buffer; |
| 101 | } |
| 102 | |
| 103 | } // namespace dvr |
| 104 | } // namespace android |