Move DVR platform C API into libdvr
Introduce a new static library build with Android.mk. The reasoning
behind this is:
1/ This library is going to consolidate all C headers and implementation
of the DVR platform library.
2/ No other internal system components need to depend on this library.
3/ This library is build with Android.mk so that it has depend on other
system components (such as libandroid_runtime) without worrying about
that Android.bp-based libs cannot depent and Androib.mk-based libraries.
4/ This library defines dvr_api.h header as the official definition of
DVR platform library headers. The header is moved from
'vendor/unbundled_google/packages/PrebuiltGoogleVr', which is not an
ideal place to hold the platform library anyway.
5/ If we ever decide to move these C wrappers out of frameworks/native,
this makes it easier to do so by bundling things now.
TODO: C APIs from libvrsensor and libvirtualtouchpadclient are not moved
into this bundle as some functions are still used by internal system
components. Ideally, these will be moved either to Google3 or vendor projects.
Test: Built and flash
Bug: 36563654
Change-Id: Ie5ce89faa70f86ac934a77d8f7d4fca7e94112ee
diff --git a/libs/vr/libdvr/Android.mk b/libs/vr/libdvr/Android.mk
new file mode 100644
index 0000000..5a21418
--- /dev/null
+++ b/libs/vr/libdvr/Android.mk
@@ -0,0 +1,51 @@
+# Copyright (C) 2017 The Android Open Source Project
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+LOCAL_MODULE := libdvr
+LOCAL_MODULE_OWNER := google
+LOCAL_MODULE_CLASS := STATIC_LIBRARIES
+
+LOCAL_CFLAGS += \
+ -fvisibility=hidden \
+ -D DVR_EXPORT='__attribute__ ((visibility ("default")))'
+
+LOCAL_C_INCLUDES := \
+ $(LOCAL_PATH)/include \
+
+LOCAL_EXPORT_C_INCLUDE_DIRS := \
+ $(LOCAL_PATH)/include \
+
+LOCAL_SRC_FILES := \
+ display_manager_client.cpp \
+ dvr_api.cpp \
+ dvr_buffer.cpp \
+ dvr_surface.cpp \
+ vsync_client_api.cpp \
+
+LOCAL_STATIC_LIBRARIES := \
+ libbufferhub \
+ libbufferhubqueue \
+ libdisplay \
+ libvrsensor \
+ libvirtualtouchpadclient \
+
+LOCAL_SHARED_LIBRARIES := \
+ android.hardware.graphics.bufferqueue@1.0 \
+ android.hidl.token@1.0-utils \
+ libandroid_runtime \
+ libbase \
+
+include $(BUILD_STATIC_LIBRARY)
diff --git a/libs/vr/libdvr/display_manager_client.cpp b/libs/vr/libdvr/display_manager_client.cpp
new file mode 100644
index 0000000..7cbfc21
--- /dev/null
+++ b/libs/vr/libdvr/display_manager_client.cpp
@@ -0,0 +1,134 @@
+#include "include/dvr/display_manager_client.h"
+
+#include <dvr/dvr_buffer.h>
+#include <private/dvr/buffer_hub_client.h>
+#include <private/dvr/display_manager_client_impl.h>
+
+using android::dvr::DisplaySurfaceAttributeEnum;
+
+extern "C" {
+
+struct DvrDisplayManagerClient {
+ DvrDisplayManagerClient()
+ : client(android::dvr::DisplayManagerClient::Create()) {}
+ ~DvrDisplayManagerClient() {}
+
+ std::unique_ptr<android::dvr::DisplayManagerClient> client;
+};
+
+struct DvrDisplayManagerClientSurfaceList {
+ DvrDisplayManagerClientSurfaceList(
+ std::vector<android::dvr::DisplaySurfaceInfo> surface_list)
+ : list(std::move(surface_list)) {}
+ ~DvrDisplayManagerClientSurfaceList() {}
+
+ std::vector<android::dvr::DisplaySurfaceInfo> list;
+};
+
+struct DvrDisplayManagerClientSurfaceBuffers {
+ DvrDisplayManagerClientSurfaceBuffers(
+ std::vector<std::unique_ptr<android::dvr::BufferConsumer>> buffer_list)
+ : list(std::move(buffer_list)) {}
+ ~DvrDisplayManagerClientSurfaceBuffers() {}
+
+ std::vector<std::unique_ptr<android::dvr::BufferConsumer>> list;
+};
+
+DvrDisplayManagerClient* dvrDisplayManagerClientCreate() {
+ return new DvrDisplayManagerClient();
+}
+
+void dvrDisplayManagerClientDestroy(DvrDisplayManagerClient* client) {
+ delete client;
+}
+
+DvrWriteBuffer* dvrDisplayManagerSetupPoseBuffer(
+ DvrDisplayManagerClient* client, size_t extended_region_size,
+ uint64_t usage0, uint64_t usage1) {
+ // TODO(hendrikw): When we move to gralloc1, pass both usage0 and usage1 down.
+ auto buffer_producer = client->client->SetupPoseBuffer(
+ extended_region_size, static_cast<int>(usage0));
+ if (buffer_producer) {
+ return CreateDvrWriteBufferFromBufferProducer(std::move(buffer_producer));
+ }
+ return nullptr;
+}
+
+int dvrDisplayManagerClientGetEventFd(DvrDisplayManagerClient* client) {
+ return client->client->event_fd();
+}
+
+int dvrDisplayManagerClientTranslateEpollEventMask(
+ DvrDisplayManagerClient* client, int in_events, int* out_events) {
+ auto result = client->client->GetChannel()->GetEventMask(in_events);
+
+ if (!result) {
+ return -EIO;
+ }
+
+ *out_events = result.get();
+
+ return 0;
+}
+
+int dvrDisplayManagerClientGetSurfaceList(
+ DvrDisplayManagerClient* client,
+ DvrDisplayManagerClientSurfaceList** surface_list) {
+ std::vector<android::dvr::DisplaySurfaceInfo> list;
+ int ret = client->client->GetSurfaceList(&list);
+ if (ret < 0)
+ return ret;
+
+ *surface_list = new DvrDisplayManagerClientSurfaceList(std::move(list));
+ return ret;
+}
+
+void dvrDisplayManagerClientSurfaceListDestroy(
+ DvrDisplayManagerClientSurfaceList* surface_list) {
+ delete surface_list;
+}
+
+size_t dvrDisplayManagerClientSurfaceListGetSize(
+ DvrDisplayManagerClientSurfaceList* surface_list) {
+ return surface_list->list.size();
+}
+
+int dvrDisplayManagerClientSurfaceListGetSurfaceId(
+ DvrDisplayManagerClientSurfaceList* surface_list, size_t index) {
+ return surface_list->list[index].surface_id;
+}
+
+int dvrDisplayManagerClientSurfaceListGetClientZOrder(
+ DvrDisplayManagerClientSurfaceList* surface_list, size_t index) {
+ return surface_list->list[index].ClientZOrder();
+}
+
+bool dvrDisplayManagerClientSurfaceListGetClientIsVisible(
+ DvrDisplayManagerClientSurfaceList* surface_list, size_t index) {
+ return surface_list->list[index].IsClientVisible();
+}
+
+int dvrDisplayManagerClientGetSurfaceBuffers(
+ DvrDisplayManagerClient* client, int surface_id,
+ DvrDisplayManagerClientSurfaceBuffers** surface_buffers) {
+ // TODO(jwcai, hendrikw) Remove this after we replacing
+ // dvrDisplayManagerClientGetSurfaceBuffers is dvr_api.
+ return -1;
+}
+
+void dvrDisplayManagerClientSurfaceBuffersDestroy(
+ DvrDisplayManagerClientSurfaceBuffers* surface_buffers) {
+ delete surface_buffers;
+}
+
+size_t dvrDisplayManagerClientSurfaceBuffersGetSize(
+ DvrDisplayManagerClientSurfaceBuffers* surface_buffers) {
+ return surface_buffers->list.size();
+}
+
+int dvrDisplayManagerClientSurfaceBuffersGetFd(
+ DvrDisplayManagerClientSurfaceBuffers* surface_buffers, size_t index) {
+ return surface_buffers->list[index]->event_fd();
+}
+
+} // extern "C"
diff --git a/libs/vr/libdvr/dvr_api.cpp b/libs/vr/libdvr/dvr_api.cpp
new file mode 100644
index 0000000..b04b897
--- /dev/null
+++ b/libs/vr/libdvr/dvr_api.cpp
@@ -0,0 +1,90 @@
+#include "include/dvr/dvr_api.h"
+
+#include <errno.h>
+
+// Headers from libdvr
+#include <dvr/display_manager_client.h>
+#include <dvr/dvr_buffer.h>
+#include <dvr/dvr_surface.h>
+#include <dvr/vsync_client_api.h>
+
+// Headers not yet moved into libdvr.
+// TODO(jwcai) Move these once their callers are moved into Google3.
+#include <dvr/pose_client.h>
+#include <dvr/virtual_touchpad_client.h>
+
+extern "C" {
+
+DVR_EXPORT int dvrGetApi(void* api, size_t struct_size, int version) {
+ if (version == 1) {
+ if (struct_size != sizeof(DvrApi_v1)) {
+ return -EINVAL;
+ }
+ DvrApi_v1* dvr_api = static_cast<DvrApi_v1*>(api);
+
+ // display_manager_client.h
+ dvr_api->display_manager_client_create_ = dvrDisplayManagerClientCreate;
+ dvr_api->display_manager_client_destroy_ = dvrDisplayManagerClientDestroy;
+ dvr_api->display_manager_client_get_surface_list_ =
+ dvrDisplayManagerClientGetSurfaceList;
+ dvr_api->display_manager_client_surface_list_destroy_ =
+ dvrDisplayManagerClientSurfaceListDestroy;
+ dvr_api->display_manager_setup_pose_buffer_ =
+ dvrDisplayManagerSetupPoseBuffer;
+ dvr_api->display_manager_client_surface_list_get_size_ =
+ dvrDisplayManagerClientSurfaceListGetSize;
+ dvr_api->display_manager_client_surface_list_get_surface_id_ =
+ dvrDisplayManagerClientSurfaceListGetSurfaceId;
+ dvr_api->display_manager_client_get_surface_buffer_list_ =
+ dvrDisplayManagerClientGetSurfaceBuffers;
+ dvr_api->display_manager_client_surface_buffer_list_destroy_ =
+ dvrDisplayManagerClientSurfaceBuffersDestroy;
+ dvr_api->display_manager_client_surface_buffer_list_get_size_ =
+ dvrDisplayManagerClientSurfaceBuffersGetSize;
+ dvr_api->display_manager_client_surface_buffer_list_get_fd_ =
+ dvrDisplayManagerClientSurfaceBuffersGetFd;
+
+ // dvr_buffer.h
+ dvr_api->write_buffer_destroy_ = dvrWriteBufferDestroy;
+ dvr_api->write_buffer_get_blob_fds_ = dvrWriteBufferGetBlobFds;
+ dvr_api->write_buffer_get_AHardwareBuffer_ =
+ dvrWriteBufferGetAHardwareBuffer;
+ dvr_api->write_buffer_post_ = dvrWriteBufferPost;
+ dvr_api->write_buffer_gain_ = dvrWriteBufferGain;
+ dvr_api->write_buffer_gain_async_ = dvrWriteBufferGainAsync;
+
+ dvr_api->read_buffer_get_blob_fds_ = dvrReadBufferGetBlobFds;
+ dvr_api->read_buffer_get_AHardwareBuffer_ = dvrReadBufferGetAHardwareBuffer;
+ dvr_api->read_buffer_acquire_ = dvrReadBufferAcquire;
+ dvr_api->read_buffer_release_ = dvrReadBufferRelease;
+ dvr_api->read_buffer_release_async_ = dvrReadBufferReleaseAsync;
+
+ // dvr_surface.h
+ dvr_api->get_pose_buffer_ = dvrGetPoseBuffer;
+
+ // vsync_client_api.h
+ dvr_api->vsync_client_create_ = dvr_vsync_client_create;
+ dvr_api->vsync_client_destroy_ = dvr_vsync_client_destroy;
+ dvr_api->vsync_client_get_sched_info_ = dvr_vsync_client_get_sched_info;
+
+ // pose_client.h
+ dvr_api->pose_client_create_ = dvrPoseCreate;
+ dvr_api->pose_client_destroy_ = dvrPoseDestroy;
+ dvr_api->pose_get_ = dvrPoseGet;
+ dvr_api->pose_get_vsync_count_ = dvrPoseGetVsyncCount;
+ dvr_api->pose_get_controller_ = dvrPoseGetController;
+
+ // virtual_touchpad_client.h
+ dvr_api->virtual_touchpad_create_ = dvrVirtualTouchpadCreate;
+ dvr_api->virtual_touchpad_destroy_ = dvrVirtualTouchpadDestroy;
+ dvr_api->virtual_touchpad_attach_ = dvrVirtualTouchpadAttach;
+ dvr_api->virtual_touchpad_detach_ = dvrVirtualTouchpadDetach;
+ dvr_api->virtual_touchpad_touch_ = dvrVirtualTouchpadTouch;
+ dvr_api->virtual_touchpad_button_state_ = dvrVirtualTouchpadButtonState;
+
+ return 0;
+ }
+ return -EINVAL;
+}
+
+} // extern "C"
diff --git a/libs/vr/libdvr/dvr_buffer.cpp b/libs/vr/libdvr/dvr_buffer.cpp
new file mode 100644
index 0000000..43290ba
--- /dev/null
+++ b/libs/vr/libdvr/dvr_buffer.cpp
@@ -0,0 +1,125 @@
+#include "include/dvr/dvr_buffer.h"
+
+#include <private/dvr/buffer_hub_client.h>
+#include <ui/GraphicBuffer.h>
+
+using namespace android;
+
+struct DvrWriteBuffer {
+ std::unique_ptr<dvr::BufferProducer> write_buffer_;
+ sp<GraphicBuffer> graphic_buffer_;
+};
+
+struct DvrReadBuffer {
+ std::unique_ptr<dvr::BufferConsumer> read_buffer_;
+ sp<GraphicBuffer> graphic_buffer_;
+};
+
+namespace android {
+namespace dvr {
+
+DvrWriteBuffer* CreateDvrWriteBufferFromBufferProducer(
+ std::unique_ptr<dvr::BufferProducer> buffer_producer) {
+ DvrWriteBuffer* write_buffer = new DvrWriteBuffer;
+ write_buffer->write_buffer_ = std::move(buffer_producer);
+ return write_buffer;
+}
+
+DvrReadBuffer* CreateDvrReadBufferFromBufferConsumer(
+ std::unique_ptr<dvr::BufferConsumer> buffer_consumer) {
+ DvrReadBuffer* read_buffer = new DvrReadBuffer;
+ read_buffer->read_buffer_ = std::move(buffer_consumer);
+ return read_buffer;
+}
+
+} // namespace dvr
+} // namespace android
+
+namespace {
+
+void InitializeGraphicBuffer(const dvr::BufferHubBuffer* buffer,
+ sp<GraphicBuffer>* graphic_buffer) {
+ *graphic_buffer = sp<GraphicBuffer>(new GraphicBuffer(
+ buffer->width(), buffer->height(), buffer->format(), 1, /* layer count */
+ buffer->usage(), buffer->stride(), buffer->native_handle(),
+ false /* keep ownership */));
+}
+
+} // anonymous namespace
+
+extern "C" {
+
+void dvrWriteBufferDestroy(DvrWriteBuffer* client) { delete client; }
+
+void dvrWriteBufferGetBlobFds(DvrWriteBuffer* client, int* fds,
+ size_t* fds_count, size_t max_fds_count) {
+ client->write_buffer_->GetBlobFds(fds, fds_count, max_fds_count);
+}
+
+int dvrWriteBufferGetAHardwareBuffer(DvrWriteBuffer* client,
+ AHardwareBuffer** hardware_buffer) {
+ if (!client->graphic_buffer_.get()) {
+ InitializeGraphicBuffer(client->write_buffer_.get(),
+ &client->graphic_buffer_);
+ }
+ *hardware_buffer =
+ reinterpret_cast<AHardwareBuffer*>(client->graphic_buffer_.get());
+ return 0;
+}
+
+int dvrWriteBufferPost(DvrWriteBuffer* client, int ready_fence_fd,
+ const void* meta, size_t meta_size_bytes) {
+ pdx::LocalHandle fence(ready_fence_fd);
+ int result = client->write_buffer_->Post(fence, meta, meta_size_bytes);
+ fence.Release();
+ return result;
+}
+
+int dvrWriteBufferGain(DvrWriteBuffer* client, int* release_fence_fd) {
+ pdx::LocalHandle release_fence;
+ int result = client->write_buffer_->Gain(&release_fence);
+ *release_fence_fd = release_fence.Release();
+ return result;
+}
+
+int dvrWriteBufferGainAsync(DvrWriteBuffer* client) {
+ return client->write_buffer_->GainAsync();
+}
+
+void dvrReadBufferGetBlobFds(DvrReadBuffer* client, int* fds, size_t* fds_count,
+ size_t max_fds_count) {
+ client->read_buffer_->GetBlobFds(fds, fds_count, max_fds_count);
+}
+
+int dvrReadBufferGetAHardwareBuffer(DvrReadBuffer* client,
+ AHardwareBuffer** hardware_buffer) {
+ if (!client->graphic_buffer_.get()) {
+ InitializeGraphicBuffer(client->read_buffer_.get(),
+ &client->graphic_buffer_);
+ }
+ *hardware_buffer =
+ reinterpret_cast<AHardwareBuffer*>(client->graphic_buffer_.get());
+ return 0;
+}
+
+int dvrReadBufferAcquire(DvrReadBuffer* client, int* ready_fence_fd, void* meta,
+ size_t meta_size_bytes) {
+ pdx::LocalHandle ready_fence;
+ int result =
+ client->read_buffer_->Acquire(&ready_fence, meta, meta_size_bytes);
+ *ready_fence_fd = ready_fence.Release();
+ return result;
+}
+
+int dvrReadBufferRelease(DvrReadBuffer* client, int release_fence_fd) {
+ pdx::LocalHandle fence(release_fence_fd);
+ int result = client->read_buffer_->Release(fence);
+ fence.Release();
+ return result;
+}
+
+int dvrReadBufferReleaseAsync(DvrReadBuffer* client) {
+ return client->read_buffer_->ReleaseAsync();
+}
+
+} // extern "C"
diff --git a/libs/vr/libdvr/dvr_surface.cpp b/libs/vr/libdvr/dvr_surface.cpp
new file mode 100644
index 0000000..2abbe63
--- /dev/null
+++ b/libs/vr/libdvr/dvr_surface.cpp
@@ -0,0 +1,20 @@
+#include "include/dvr/dvr_surface.h"
+
+#include <private/dvr/display_client.h>
+
+using namespace android;
+
+extern "C" {
+
+int dvrGetPoseBuffer(DvrReadBuffer** pose_buffer) {
+ auto client = android::dvr::DisplayClient::Create();
+ if (!client) {
+ ALOGE("Failed to create display client!");
+ return -ECOMM;
+ }
+
+ *pose_buffer = CreateDvrReadBufferFromBufferConsumer(client->GetPoseBuffer());
+ return 0;
+}
+
+} // extern "C"
diff --git a/libs/vr/libdvr/include/CPPLINT.cfg b/libs/vr/libdvr/include/CPPLINT.cfg
new file mode 100644
index 0000000..2f8a3c0
--- /dev/null
+++ b/libs/vr/libdvr/include/CPPLINT.cfg
@@ -0,0 +1 @@
+filter=-build/header_guard
diff --git a/libs/vr/libdvr/include/dvr/display_manager_client.h b/libs/vr/libdvr/include/dvr/display_manager_client.h
new file mode 100644
index 0000000..0928d43
--- /dev/null
+++ b/libs/vr/libdvr/include/dvr/display_manager_client.h
@@ -0,0 +1,91 @@
+#ifndef DVR_DISPLAY_MANAGER_CLIENT_H_
+#define DVR_DISPLAY_MANAGER_CLIENT_H_
+
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct DvrDisplayManagerClient DvrDisplayManagerClient;
+typedef struct DvrDisplayManagerClientSurfaceList
+ DvrDisplayManagerClientSurfaceList;
+typedef struct DvrDisplayManagerClientSurfaceBuffers
+ DvrDisplayManagerClientSurfaceBuffers;
+typedef struct DvrWriteBuffer DvrWriteBuffer;
+
+DvrDisplayManagerClient* dvrDisplayManagerClientCreate();
+
+void dvrDisplayManagerClientDestroy(DvrDisplayManagerClient* client);
+
+DvrWriteBuffer* dvrDisplayManagerSetupPoseBuffer(
+ DvrDisplayManagerClient* client, size_t extended_region_size,
+ uint64_t usage0, uint64_t usage1);
+
+// Return an event fd for checking if there was an event on the server
+// Note that the only event which will be flagged is POLLIN. You must use
+// dvrDisplayManagerClientTranslateEpollEventMask in order to get the real
+// event flags.
+// @return the fd
+int dvrDisplayManagerClientGetEventFd(DvrDisplayManagerClient* client);
+
+// Once you have received an epoll event, you must translate it to its true
+// flags. This is a workaround for working with UDS.
+// @param in_events pass in the epoll revents that were initially returned
+// @param on success, this value will be overwritten with the true epoll values
+// @return 0 on success, non-zero otherwise
+int dvrDisplayManagerClientTranslateEpollEventMask(
+ DvrDisplayManagerClient* client, int in_events, int* out_events);
+
+// If successful, populates |surface_list| with a list of application
+// surfaces the display is currently using.
+//
+// @return 0 on success. Otherwise it returns a negative error value.
+int dvrDisplayManagerClientGetSurfaceList(
+ DvrDisplayManagerClient* client,
+ DvrDisplayManagerClientSurfaceList** surface_list);
+
+void dvrDisplayManagerClientSurfaceListDestroy(
+ DvrDisplayManagerClientSurfaceList* surface_list);
+
+// @return Returns the number of surfaces in the list.
+size_t dvrDisplayManagerClientSurfaceListGetSize(
+ DvrDisplayManagerClientSurfaceList* surface_list);
+
+// @return Return a unique identifier for a client surface. The identifier can
+// be used to query for other surface properties.
+int dvrDisplayManagerClientSurfaceListGetSurfaceId(
+ DvrDisplayManagerClientSurfaceList* surface_list, size_t index);
+
+// @return Returns the stacking order of the client surface at |index|.
+int dvrDisplayManagerClientSurfaceListGetClientZOrder(
+ DvrDisplayManagerClientSurfaceList* surface_list, size_t index);
+
+// @return Returns true if the client surface is visible, false otherwise.
+bool dvrDisplayManagerClientSurfaceListGetClientIsVisible(
+ DvrDisplayManagerClientSurfaceList* surface_list, size_t index);
+
+// TODO(jwcai, hendrikw) Remove this after we replacing
+// dvrDisplayManagerClientGetSurfaceBuffers is dvr_api.
+int dvrDisplayManagerClientGetSurfaceBuffers(
+ DvrDisplayManagerClient* client, int surface_id,
+ DvrDisplayManagerClientSurfaceBuffers** surface_buffers);
+
+void dvrDisplayManagerClientSurfaceBuffersDestroy(
+ DvrDisplayManagerClientSurfaceBuffers* surface_buffers);
+
+// @return Returns the number of buffers.
+size_t dvrDisplayManagerClientSurfaceBuffersGetSize(
+ DvrDisplayManagerClientSurfaceBuffers* surface_buffers);
+
+// @return Returns the file descriptor for the buffer consumer at |index|.
+int dvrDisplayManagerClientSurfaceBuffersGetFd(
+ DvrDisplayManagerClientSurfaceBuffers* surface_buffers, size_t index);
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif // DVR_DISPLAY_MANAGER_CLIENT_H_
diff --git a/libs/vr/libdvr/include/dvr/dvr_api.h b/libs/vr/libdvr/include/dvr/dvr_api.h
new file mode 100644
index 0000000..3f020a3
--- /dev/null
+++ b/libs/vr/libdvr/include/dvr/dvr_api.h
@@ -0,0 +1,176 @@
+#ifndef ANDROID_DVR_API_H_
+#define ANDROID_DVR_API_H_
+
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct DvrPoseAsync DvrPoseAsync;
+
+typedef struct DvrDisplayManagerClient DvrDisplayManagerClient;
+typedef struct DvrDisplayManagerClientSurfaceList
+ DvrDisplayManagerClientSurfaceList;
+typedef struct DvrDisplayManagerClientSurfaceBuffers
+ DvrDisplayManagerClientSurfaceBuffers;
+typedef struct DvrPose DvrPose;
+typedef struct dvr_vsync_client dvr_vsync_client;
+typedef struct DvrVirtualTouchpad DvrVirtualTouchpad;
+
+typedef DvrDisplayManagerClient* (*DisplayManagerClientCreatePtr)(void);
+typedef void (*DisplayManagerClientDestroyPtr)(DvrDisplayManagerClient* client);
+
+typedef struct DvrWriteBuffer DvrWriteBuffer;
+typedef struct DvrReadBuffer DvrReadBuffer;
+typedef struct AHardwareBuffer AHardwareBuffer;
+
+// display_manager_client.h
+typedef int (*DisplayManagerClientGetSurfaceListPtr)(
+ DvrDisplayManagerClient* client,
+ DvrDisplayManagerClientSurfaceList** surface_list);
+typedef void (*DisplayManagerClientSurfaceListDestroyPtr)(
+ DvrDisplayManagerClientSurfaceList* surface_list);
+typedef DvrWriteBuffer* (*DisplayManagerSetupPoseBufferPtr)(
+ DvrDisplayManagerClient* client, size_t extended_region_size,
+ uint64_t usage0, uint64_t usage1);
+typedef size_t (*DisplayManagerClientSurfaceListGetSizePtr)(
+ DvrDisplayManagerClientSurfaceList* surface_list);
+typedef int (*DisplayManagerClientSurfaceListGetSurfaceIdPtr)(
+ DvrDisplayManagerClientSurfaceList* surface_list, size_t index);
+typedef int (*DisplayManagerClientGetSurfaceBufferListPtr)(
+ DvrDisplayManagerClient* client, int surface_id,
+ DvrDisplayManagerClientSurfaceBuffers** surface_buffers);
+typedef void (*DisplayManagerClientSurfaceBufferListDestroyPtr)(
+ DvrDisplayManagerClientSurfaceBuffers* surface_buffers);
+typedef size_t (*DisplayManagerClientSurfaceBufferListGetSizePtr)(
+ DvrDisplayManagerClientSurfaceBuffers* surface_buffers);
+typedef int (*DisplayManagerClientSurfaceBufferListGetFdPtr)(
+ DvrDisplayManagerClientSurfaceBuffers* surface_buffers, size_t index);
+
+// dvr_buffer.h
+typedef void (*DvrWriteBufferDestroyPtr)(DvrWriteBuffer* client);
+typedef void (*DvrWriteBufferGetBlobFdsPtr)(DvrWriteBuffer* client, int* fds,
+ size_t* fds_count,
+ size_t max_fds_count);
+typedef int (*DvrWriteBufferGetAHardwareBufferPtr)(
+ DvrWriteBuffer* client, AHardwareBuffer** hardware_buffer);
+typedef int (*DvrWriteBufferPostPtr)(DvrWriteBuffer* client, int ready_fence_fd,
+ const void* meta, size_t meta_size_bytes);
+typedef int (*DvrWriteBufferGainPtr)(DvrWriteBuffer* client,
+ int* release_fence_fd);
+typedef int (*DvrWriteBufferGainAsyncPtr)(DvrWriteBuffer* client);
+
+typedef void (*DvrReadBufferGetBlobFdsPtr)(DvrReadBuffer* client, int* fds,
+ size_t* fds_count,
+ size_t max_fds_count);
+typedef int (*DvrReadBufferGetAHardwareBufferPtr)(
+ DvrReadBuffer* client, AHardwareBuffer** hardware_buffer);
+typedef int (*DvrReadBufferAcquirePtr)(DvrReadBuffer* client,
+ int* ready_fence_fd, void* meta,
+ size_t meta_size_bytes);
+typedef int (*DvrReadBufferReleasePtr)(DvrReadBuffer* client,
+ int release_fence_fd);
+typedef int (*DvrReadBufferReleaseAsyncPtr)(DvrReadBuffer* client);
+
+// dvr_surface.h
+typedef int (*DvrGetPoseBufferPtr)(DvrReadBuffer** pose_buffer);
+
+// vsync_client_api.h
+typedef dvr_vsync_client* (*VSyncClientCreatePtr)();
+typedef void (*VSyncClientDestroyPtr)(dvr_vsync_client* client);
+typedef int (*VSyncClientGetSchedInfoPtr)(dvr_vsync_client* client,
+ int64_t* vsync_period_ns,
+ int64_t* next_timestamp_ns,
+ uint32_t* next_vsync_count);
+
+// pose_client.h
+typedef DvrPose* (*PoseClientCreatePtr)(void);
+typedef void (*PoseClientDestroyPtr)(DvrPose* client);
+typedef int (*PoseGetPtr)(DvrPose* client, uint32_t vsync_count,
+ DvrPoseAsync* out_pose);
+typedef uint32_t (*PoseGetVsyncCountPtr)(DvrPose* client);
+typedef int (*PoseGetControllerPtr)(DvrPose* client, int32_t controller_id,
+ uint32_t vsync_count,
+ DvrPoseAsync* out_pose);
+
+// virtual_touchpad_client.h
+typedef DvrVirtualTouchpad* (*VirtualTouchpadCreatePtr)(void);
+typedef void (*VirtualTouchpadDestroyPtr)(DvrVirtualTouchpad* client);
+typedef int (*VirtualTouchpadAttachPtr)(DvrVirtualTouchpad* client);
+typedef int (*VirtualTouchpadDetachPtr)(DvrVirtualTouchpad* client);
+typedef int (*VirtualTouchpadTouchPtr)(DvrVirtualTouchpad* client, int touchpad,
+ float x, float y, float pressure);
+typedef int (*VirtualTouchpadButtonStatePtr)(DvrVirtualTouchpad* client,
+ int touchpad, int buttons);
+
+struct DvrApi_v1 {
+ // Display manager client
+ DisplayManagerClientCreatePtr display_manager_client_create_;
+ DisplayManagerClientDestroyPtr display_manager_client_destroy_;
+ DisplayManagerClientGetSurfaceListPtr
+ display_manager_client_get_surface_list_;
+ DisplayManagerClientSurfaceListDestroyPtr
+ display_manager_client_surface_list_destroy_;
+ DisplayManagerSetupPoseBufferPtr display_manager_setup_pose_buffer_;
+ DisplayManagerClientSurfaceListGetSizePtr
+ display_manager_client_surface_list_get_size_;
+ DisplayManagerClientSurfaceListGetSurfaceIdPtr
+ display_manager_client_surface_list_get_surface_id_;
+ DisplayManagerClientGetSurfaceBufferListPtr
+ display_manager_client_get_surface_buffer_list_;
+ DisplayManagerClientSurfaceBufferListDestroyPtr
+ display_manager_client_surface_buffer_list_destroy_;
+ DisplayManagerClientSurfaceBufferListGetSizePtr
+ display_manager_client_surface_buffer_list_get_size_;
+ DisplayManagerClientSurfaceBufferListGetFdPtr
+ display_manager_client_surface_buffer_list_get_fd_;
+
+ // Write buffer
+ DvrWriteBufferDestroyPtr write_buffer_destroy_;
+ DvrWriteBufferGetBlobFdsPtr write_buffer_get_blob_fds_;
+ DvrWriteBufferGetAHardwareBufferPtr write_buffer_get_AHardwareBuffer_;
+ DvrWriteBufferPostPtr write_buffer_post_;
+ DvrWriteBufferGainPtr write_buffer_gain_;
+ DvrWriteBufferGainAsyncPtr write_buffer_gain_async_;
+
+ // Read buffer
+ DvrReadBufferGetBlobFdsPtr read_buffer_get_blob_fds_;
+ DvrReadBufferGetAHardwareBufferPtr read_buffer_get_AHardwareBuffer_;
+ DvrReadBufferAcquirePtr read_buffer_acquire_;
+ DvrReadBufferReleasePtr read_buffer_release_;
+ DvrReadBufferReleaseAsyncPtr read_buffer_release_async_;
+
+ // V-Sync client
+ VSyncClientCreatePtr vsync_client_create_;
+ VSyncClientDestroyPtr vsync_client_destroy_;
+ VSyncClientGetSchedInfoPtr vsync_client_get_sched_info_;
+
+ // Display surface
+ DvrGetPoseBufferPtr get_pose_buffer_;
+
+ // Pose client
+ PoseClientCreatePtr pose_client_create_;
+ PoseClientDestroyPtr pose_client_destroy_;
+ PoseGetPtr pose_get_;
+ PoseGetVsyncCountPtr pose_get_vsync_count_;
+ PoseGetControllerPtr pose_get_controller_;
+
+ // Virtual touchpad client
+ VirtualTouchpadCreatePtr virtual_touchpad_create_;
+ VirtualTouchpadDestroyPtr virtual_touchpad_destroy_;
+ VirtualTouchpadAttachPtr virtual_touchpad_attach_;
+ VirtualTouchpadDetachPtr virtual_touchpad_detach_;
+ VirtualTouchpadTouchPtr virtual_touchpad_touch_;
+ VirtualTouchpadButtonStatePtr virtual_touchpad_button_state_;
+};
+
+int dvrGetApi(void* api, size_t struct_size, int version);
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif // ANDROID_DVR_API_H_
diff --git a/libs/vr/libdvr/include/dvr/dvr_buffer.h b/libs/vr/libdvr/include/dvr/dvr_buffer.h
new file mode 100644
index 0000000..c14b1a3
--- /dev/null
+++ b/libs/vr/libdvr/include/dvr/dvr_buffer.h
@@ -0,0 +1,55 @@
+#ifndef ANDROID_DVR_BUFFER_H_
+#define ANDROID_DVR_BUFFER_H_
+
+#include <memory>
+#include <stdbool.h>
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct DvrWriteBuffer DvrWriteBuffer;
+typedef struct DvrReadBuffer DvrReadBuffer;
+typedef struct AHardwareBuffer AHardwareBuffer;
+
+// Write buffer
+void dvrWriteBufferDestroy(DvrWriteBuffer* client);
+void dvrWriteBufferGetBlobFds(DvrWriteBuffer* client, int* fds,
+ size_t* fds_count, size_t max_fds_count);
+int dvrWriteBufferGetAHardwareBuffer(DvrWriteBuffer* client,
+ AHardwareBuffer** hardware_buffer);
+int dvrWriteBufferPost(DvrWriteBuffer* client, int ready_fence_fd,
+ const void* meta, size_t meta_size_bytes);
+int dvrWriteBufferGain(DvrWriteBuffer* client, int* release_fence_fd);
+int dvrWriteBufferGainAsync(DvrWriteBuffer* client);
+
+// Read buffer
+void dvrReadBufferGetBlobFds(DvrReadBuffer* client, int* fds, size_t* fds_count,
+ size_t max_fds_count);
+int dvrReadBufferGetAHardwareBuffer(DvrReadBuffer* client,
+ AHardwareBuffer** hardware_buffer);
+int dvrReadBufferAcquire(DvrReadBuffer* client, int* ready_fence_fd, void* meta,
+ size_t meta_size_bytes);
+int dvrReadBufferRelease(DvrReadBuffer* client, int release_fence_fd);
+int dvrReadBufferReleaseAsync(DvrReadBuffer* client);
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+namespace android {
+namespace dvr {
+
+class BufferProducer;
+class BufferConsumer;
+
+DvrWriteBuffer* CreateDvrWriteBufferFromBufferProducer(
+ std::unique_ptr<BufferProducer> buffer_producer);
+DvrReadBuffer* CreateDvrReadBufferFromBufferConsumer(
+ std::unique_ptr<BufferConsumer> buffer_consumer);
+
+} // namespace dvr
+} // namespace android
+
+#endif // ANDROID_DVR_BUFFER_H_
diff --git a/libs/vr/libdvr/include/dvr/dvr_surface.h b/libs/vr/libdvr/include/dvr/dvr_surface.h
new file mode 100644
index 0000000..fa8d228
--- /dev/null
+++ b/libs/vr/libdvr/include/dvr/dvr_surface.h
@@ -0,0 +1,17 @@
+#ifndef ANDROID_DVR_SURFACE_H_
+#define ANDROID_DVR_SURFACE_H_
+
+#include <dvr/dvr_buffer.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// Get a pointer to the global pose buffer.
+int dvrGetPoseBuffer(DvrReadBuffer** pose_buffer);
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif // ANDROID_DVR_SURFACE_H_
diff --git a/libs/vr/libdvr/include/dvr/vsync_client_api.h b/libs/vr/libdvr/include/dvr/vsync_client_api.h
new file mode 100644
index 0000000..0ae5cd5
--- /dev/null
+++ b/libs/vr/libdvr/include/dvr/vsync_client_api.h
@@ -0,0 +1,36 @@
+#ifndef ANDROID_DVR_VSYNC_CLIENT_API_H_
+#define ANDROID_DVR_VSYNC_CLIENT_API_H_
+
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// A client of the vsync service.
+//
+// The "dvr_vsync_client" structure wraps a client connection to the
+// system vsync service. It is used to synchronize application drawing
+// with the scanout of the display.
+typedef struct dvr_vsync_client dvr_vsync_client;
+
+// Creates a new client to the system vsync service.
+dvr_vsync_client* dvr_vsync_client_create();
+
+// Destroys the vsync client.
+void dvr_vsync_client_destroy(dvr_vsync_client* client);
+
+// Get the estimated timestamp of the next GPU lens warp preemption event in
+// ns. Also returns the corresponding vsync count that the next lens warp
+// operation will target. This call has the same side effect on events as
+// Acknowledge, which saves an IPC message.
+int dvr_vsync_client_get_sched_info(dvr_vsync_client* client,
+ int64_t* vsync_period_ns,
+ int64_t* next_timestamp_ns,
+ uint32_t* next_vsync_count);
+
+#ifdef __cplusplus
+} // extern "C"
+#endif
+
+#endif // ANDROID_DVR_VSYNC_CLIENT_API_H_
diff --git a/libs/vr/libdvr/vsync_client_api.cpp b/libs/vr/libdvr/vsync_client_api.cpp
new file mode 100644
index 0000000..dbddd3d
--- /dev/null
+++ b/libs/vr/libdvr/vsync_client_api.cpp
@@ -0,0 +1,24 @@
+#include "include/dvr/vsync_client_api.h"
+
+#include <private/dvr/vsync_client.h>
+
+extern "C" {
+
+dvr_vsync_client* dvr_vsync_client_create() {
+ auto client = android::dvr::VSyncClient::Create();
+ return static_cast<dvr_vsync_client*>(client.release());
+}
+
+void dvr_vsync_client_destroy(dvr_vsync_client* client) {
+ delete static_cast<android::dvr::VSyncClient*>(client);
+}
+
+int dvr_vsync_client_get_sched_info(dvr_vsync_client* client,
+ int64_t* vsync_period_ns,
+ int64_t* next_timestamp_ns,
+ uint32_t* next_vsync_count) {
+ return static_cast<android::dvr::VSyncClient*>(client)->GetSchedInfo(
+ vsync_period_ns, next_timestamp_ns, next_vsync_count);
+}
+
+} // extern "C"