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Redmi Note 8 Pro 64Gb+6Gb Dual LTE
Руководство по эксплуатации Страница: 111

Xiaomi Redmi Note 8 Pro 64Gb+6Gb Dual LTE Руководство по эксплуатации онлайн [111/132] 755554

[C-1-25] MUST expose at least one Vulkan queue family that where flags contain both

VK_QUEUE_GRAPHICS_BIT and VK_QUEUE_COMPUTE_BIT , and queueCount is at least 2.

[SR] Are STRONGLY RECOMMENDED to support Vulkan 1.1.

[SR] Are STRONGLY RECOMMENDED to implement

VK_ANDROID_external_memory_android_hardware_buffer and expose it in the list of available

Vulkan extensions.

[C-1-7] The GPU and display MUST be able to synchronize access to the shared front

buffer such that alternating-eye rendering of VR content at 60fps with two render contexts

will be displayed with no visible tearing artifacts.

[C-1-9] MUST implement support for AHardwareBuffer flags

AHARDWAREBUFFER_USAGE_GPU_DATA_BUFFER ,

AHARDWAREBUFFER_USAGE_SENSOR_DIRECT_DATA and

AHARDWAREBUFFER_USAGE_PROTECTED_CONTENT as described in the NDK.

[C-1-10] MUST implement support for AHardwareBuffers with more than one layer and any

combination of the usage flags AHARDWAREBUFFER_USAGE_GPU_COLOR_OUTPUT ,

AHARDWAREBUFFER_USAGE_GPU_SAMPLED_IMAGE ,

AHARDWAREBUFFER_USAGE_PROTECTED_CONTENT for at least the following formats:

AHARDWAREBUFFER_FORMAT_R5G6B5_UNORM ,

AHARDWAREBUFFER_FORMAT_R8G8B8A8_UNORM ,

AHARDWAREBUFFER_FORMAT_R10G10B10A2_UNORM ,

AHARDWAREBUFFER_FORMAT_R16G16B16A16_FLOAT .

[C-1-11] MUST support H.264 decoding at least 3840 x 2160 at 30fps, compressed to an

average of 40Mbps (equivalent to 4 instances of 1920 x1080 at 30 fps-10 Mbps or 2

instances of 1920 x 1080 at 60 fps-20 Mbps).

[C-1-12] MUST support HEVC and VP9, MUST be capable of decoding at least 1920 x

1080 at 30 fps compressed to an average of 10 Mbps and SHOULD be capable of

decoding 3840 x 2160 at 30 fps-20 Mbps (equivalent to 4 instances of 1920 x 1080 at 30

fps-5 Mbps).

[C-1-13] MUST support HardwarePropertiesManager.getDeviceTemperatures API and return

accurate values for skin temperature.

[C-1-14] MUST have an embedded screen, and its resolution MUST be at least 1920 x

1080.

[C-SR] Are STRONGLY RECOMMENDED to have a display resolution of at least 2560 x

1440.

[C-1-15] The display MUST update at least 60 Hz while in VR Mode.

[C-1-17] The display MUST support a low-persistence mode with ≤ 5 milliseconds

persistence, persistence being defined as the amount of time for which a pixel is emitting

light.

[C-1-18] MUST support Bluetooth 4.2 and Bluetooth LE Data Length Extension section

7.4.3 .

[C-1-19] MUST support and properly report Direct Channel Type for all of the following

default sensor types:

TYPE_ACCELEROMETER

TYPE_ACCELEROMETER_UNCALIBRATED

TYPE_GYROSCOPE

TYPE_GYROSCOPE_UNCALIBRATED

TYPE_MAGNETIC_FIELD

TYPE_MAGNETIC_FIELD_UNCALIBRATED

[C-1-20] MUST support the TYPE_HARDWARE_BUFFER direct channel type for all Direct

Channel Types listed above.

Page 111 of 132

Xiaomi Redmi Note 8 Pro 64Gb+6Gb Dual LTE Руководство по эксплуатации онлайн [111/132] 755554

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