Add DaydreamVR native libraries and services
Upstreaming the main VR system components from master-dreamos-dev
into goog/master.
Bug: None
Test: `m -j32` succeeds. Sailfish boots and basic_vr sample app works
Change-Id: I853015872afc443aecee10411ef2d6b79184d051
diff --git a/libs/vr/libbufferhub/ion_buffer.cpp b/libs/vr/libbufferhub/ion_buffer.cpp
new file mode 100644
index 0000000..7d20049
--- /dev/null
+++ b/libs/vr/libbufferhub/ion_buffer.cpp
@@ -0,0 +1,322 @@
+#include <private/dvr/ion_buffer.h>
+
+#include <cutils/log.h>
+#define ATRACE_TAG ATRACE_TAG_GRAPHICS
+#include <utils/Trace.h>
+
+#include <mutex>
+
+namespace android {
+namespace dvr {
+
+gralloc_module_t const* IonBuffer::gralloc_module_ = nullptr;
+alloc_device_t* IonBuffer::gralloc_device_ = nullptr;
+
+IonBuffer::IonBuffer() : IonBuffer(nullptr, 0, 0, 0, 0, 0, 0, 0) {}
+
+IonBuffer::IonBuffer(int width, int height, int format, int usage)
+ : IonBuffer() {
+ Alloc(width, height, format, usage);
+}
+
+IonBuffer::IonBuffer(buffer_handle_t handle, int width, int height, int stride,
+ int format, int usage)
+ : IonBuffer(handle, width, height, 1, stride, 0, format, usage) {}
+
+IonBuffer::IonBuffer(buffer_handle_t handle, int width, int height,
+ int layer_count, int stride, int layer_stride, int format,
+ int usage)
+ : handle_(handle),
+ width_(width),
+ height_(height),
+ layer_count_(layer_count),
+ stride_(stride),
+ layer_stride_(layer_stride),
+ format_(format),
+ usage_(usage),
+ locked_(false),
+ needs_unregister_(false) {
+ ALOGD_IF(TRACE,
+ "IonBuffer::IonBuffer: handle=%p width=%d height=%d layer_count=%d "
+ "stride=%d layer stride=%d format=%d usage=%d",
+ handle_, width_, height_, layer_count_, stride_, layer_stride_,
+ format_, usage_);
+ GrallocInit();
+}
+
+IonBuffer::~IonBuffer() {
+ ALOGD_IF(TRACE,
+ "IonBuffer::~IonBuffer: handle=%p width=%d height=%d stride=%d "
+ "format=%d usage=%d",
+ handle_, width_, height_, stride_, format_, usage_);
+
+ FreeHandle();
+}
+
+IonBuffer::IonBuffer(IonBuffer&& other) : IonBuffer() {
+ *this = std::move(other);
+}
+
+IonBuffer& IonBuffer::operator=(IonBuffer&& other) {
+ ALOGD_IF(TRACE, "IonBuffer::operator=: handle_=%p other.handle_=%p", handle_,
+ other.handle_);
+
+ if (this != &other) {
+ Replace(other.handle_, other.width_, other.height_, other.layer_count_,
+ other.stride_, other.layer_stride_, other.format_, other.usage_,
+ other.needs_unregister_);
+ locked_ = other.locked_;
+ other.handle_ = nullptr;
+ other.FreeHandle();
+ }
+
+ return *this;
+}
+
+void IonBuffer::FreeHandle() {
+ if (handle_) {
+ // Lock/Unlock don't need to be balanced, but one Unlock is needed to
+ // clean/unmap the buffer. Warn if this didn't happen before freeing the
+ // native handle.
+ ALOGW_IF(locked_,
+ "IonBuffer::FreeHandle: freeing a locked handle!!! handle=%p",
+ handle_);
+
+ if (needs_unregister_) {
+ int ret = gralloc_module_->unregisterBuffer(gralloc_module_, handle_);
+ ALOGE_IF(ret < 0,
+ "IonBuffer::FreeHandle: Failed to unregister handle: %s",
+ strerror(-ret));
+
+ native_handle_close(const_cast<native_handle_t*>(handle_));
+ native_handle_delete(const_cast<native_handle_t*>(handle_));
+ } else {
+ int ret = gralloc_device_->free(gralloc_device_, handle_);
+ if (ret < 0) {
+ ALOGE("IonBuffer::FreeHandle: failed to free buffer: %s",
+ strerror(-ret));
+
+ // Not sure if this is the right thing to do. Attempting to prevent a
+ // memory leak of the native handle.
+ native_handle_close(const_cast<native_handle_t*>(handle_));
+ native_handle_delete(const_cast<native_handle_t*>(handle_));
+ }
+ }
+ }
+
+ // Always re-initialize these members, even if handle_ was nullptr, in case
+ // someone was dumb enough to pass a nullptr handle to the constructor or
+ // Reset.
+ handle_ = nullptr;
+ width_ = 0;
+ height_ = 0;
+ layer_count_ = 0;
+ stride_ = 0;
+ layer_stride_ = 0;
+ format_ = 0;
+ usage_ = 0;
+ locked_ = false;
+ needs_unregister_ = false;
+}
+
+int IonBuffer::Alloc(int width, int height, int format, int usage) {
+ ATRACE_NAME("IonBuffer::Alloc");
+ ALOGD_IF(TRACE, "IonBuffer::Alloc: width=%d height=%d format=%d usage=%d",
+ width, height, format, usage);
+
+ int stride;
+ buffer_handle_t handle;
+
+ int ret = gralloc_device_->alloc(gralloc_device_, width, height, format,
+ usage, &handle, &stride);
+ if (ret < 0) {
+ ALOGE("IonBuffer::Alloc: failed to allocate gralloc buffer: %s",
+ strerror(-ret));
+ return ret;
+ }
+
+ Replace(handle, width, height, 1, stride, 0, format, usage, false);
+ return 0;
+}
+
+void IonBuffer::Replace(buffer_handle_t handle, int width, int height,
+ int layer_count, int stride, int layer_stride,
+ int format, int usage, bool needs_unregister) {
+ FreeHandle();
+
+ handle_ = handle;
+ width_ = width;
+ height_ = height;
+ layer_count_ = layer_count;
+ stride_ = stride;
+ layer_stride_ = layer_stride;
+ format_ = format;
+ usage_ = usage;
+ needs_unregister_ = needs_unregister;
+}
+
+void IonBuffer::Reset(buffer_handle_t handle, int width, int height, int stride,
+ int format, int usage) {
+ ALOGD_IF(TRACE,
+ "IonBuffer::Reset: handle=%p width=%d height=%d stride=%d format=%d "
+ "usage=%d",
+ handle, width, height, stride, format, usage);
+
+ Replace(handle, width, height, 1, stride, 0, format, usage, false);
+}
+
+int IonBuffer::Import(buffer_handle_t handle, int width, int height, int stride,
+ int format, int usage) {
+ ATRACE_NAME("IonBuffer::Import1");
+ ALOGD_IF(
+ TRACE,
+ "IonBuffer::Import: handle=%p width=%d height=%d stride=%d format=%d "
+ "usage=%d",
+ handle, width, height, stride, format, usage);
+
+ int ret = gralloc_module_->registerBuffer(gralloc_module_, handle);
+ if (ret < 0) {
+ ALOGE("IonBuffer::Import: failed to import handle: %s", strerror(-ret));
+ return ret;
+ }
+
+ Replace(handle, width, height, 1, stride, 0, format, usage, true);
+ return 0;
+}
+
+int IonBuffer::Import(const int* fd_array, int fd_count, const int* int_array,
+ int int_count, int width, int height, int stride,
+ int format, int usage) {
+ ATRACE_NAME("IonBuffer::Import2");
+ ALOGD_IF(TRACE,
+ "IonBuffer::Import: fd_count=%d int_count=%d width=%d height=%d "
+ "stride=%d format=%d usage=%d",
+ fd_count, int_count, width, height, stride, format, usage);
+
+ if (fd_count < 0 || int_count < 0) {
+ ALOGE("IonBuffer::Import: invalid arguments.");
+ return -EINVAL;
+ }
+
+ native_handle_t* handle = native_handle_create(fd_count, int_count);
+ if (!handle) {
+ ALOGE("IonBuffer::Import: failed to create new native handle.");
+ return -ENOMEM;
+ }
+
+ // Copy fd_array into the first part of handle->data and int_array right
+ // after it.
+ memcpy(handle->data, fd_array, sizeof(int) * fd_count);
+ memcpy(handle->data + fd_count, int_array, sizeof(int) * int_count);
+
+ int ret = Import(handle, width, height, stride, format, usage);
+ if (ret < 0) {
+ ALOGE("IonBuffer::Import: failed to import raw native handle: %s",
+ strerror(-ret));
+ native_handle_close(handle);
+ native_handle_delete(handle);
+ }
+
+ return ret;
+}
+
+int IonBuffer::Duplicate(const IonBuffer* other) {
+ if (!other->handle())
+ return -EINVAL;
+
+ const int fd_count = other->handle()->numFds;
+ const int int_count = other->handle()->numInts;
+
+ if (fd_count < 0 || int_count < 0)
+ return -EINVAL;
+
+ native_handle_t* handle = native_handle_create(fd_count, int_count);
+ if (!handle) {
+ ALOGE("IonBuffer::Duplicate: Failed to create new native handle.");
+ return -ENOMEM;
+ }
+
+ // Duplicate the file descriptors from the other native handle.
+ for (int i = 0; i < fd_count; i++)
+ handle->data[i] = dup(other->handle()->data[i]);
+
+ // Copy the ints after the file descriptors.
+ memcpy(handle->data + fd_count, other->handle()->data + fd_count,
+ sizeof(int) * int_count);
+
+ const int ret = Import(handle, other->width(), other->height(),
+ other->stride(), other->format(), other->usage());
+ if (ret < 0) {
+ ALOGE("IonBuffer::Duplicate: Failed to import duplicate native handle: %s",
+ strerror(-ret));
+ native_handle_close(handle);
+ native_handle_delete(handle);
+ }
+
+ return ret;
+}
+
+int IonBuffer::Lock(int usage, int x, int y, int width, int height,
+ void** address) {
+ ATRACE_NAME("IonBuffer::Lock");
+ ALOGD_IF(TRACE,
+ "IonBuffer::Lock: handle=%p usage=%d x=%d y=%d width=%d height=%d "
+ "address=%p",
+ handle_, usage, x, y, width, height, address);
+
+ // Lock may be called multiple times; but only one Unlock is required.
+ const int err = gralloc_module_->lock(gralloc_module_, handle_, usage, x, y,
+ width, height, address);
+ if (!err)
+ locked_ = true;
+
+ return err;
+}
+
+int IonBuffer::LockYUV(int usage, int x, int y, int width, int height,
+ struct android_ycbcr* yuv) {
+ ATRACE_NAME("IonBuffer::LockYUV");
+ ALOGD_IF(TRACE,
+ "IonBuffer::Lock: handle=%p usage=%d x=%d y=%d width=%d height=%d",
+ handle_, usage, x, y, width, height);
+ const int err = gralloc_module_->lock_ycbcr(gralloc_module_, handle_, usage,
+ x, y, width, height, yuv);
+ if (!err)
+ locked_ = true;
+
+ return err;
+}
+
+int IonBuffer::Unlock() {
+ ATRACE_NAME("IonBuffer::Unlock");
+ ALOGD_IF(TRACE, "IonBuffer::Unlock: handle=%p", handle_);
+
+ // Lock may be called multiple times; but only one Unlock is required.
+ const int err = gralloc_module_->unlock(gralloc_module_, handle_);
+ if (!err)
+ locked_ = false;
+
+ return err;
+}
+
+void IonBuffer::GrallocInit() {
+ static std::once_flag gralloc_flag;
+ std::call_once(gralloc_flag, []() {
+ hw_module_t const* module = nullptr;
+ alloc_device_t* device = nullptr;
+
+ int err = hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &module);
+ ALOGE_IF(err, "IonBuffer::GrallocInit: failed to find the %s module: %s",
+ GRALLOC_HARDWARE_MODULE_ID, strerror(-err));
+
+ err = gralloc_open(module, &device);
+ ALOGE_IF(err, "IonBuffer::GrallocInit: failed to open gralloc device: %s",
+ strerror(-err));
+
+ gralloc_module_ = reinterpret_cast<gralloc_module_t const*>(module);
+ gralloc_device_ = device;
+ });
+}
+
+} // namespace dvr
+} // namespace android