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d15e1fd108
Acked-by: Valentine Burley <valentine.burley@collabora.com> Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/41373>
181 lines
7.5 KiB
C
181 lines
7.5 KiB
C
/*
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* Copyright 2017 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef ANDROID_VNDK_NATIVEWINDOW_AHARDWAREBUFFER_H
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#define ANDROID_VNDK_NATIVEWINDOW_AHARDWAREBUFFER_H
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// vndk is a superset of the NDK
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#include <android/hardware_buffer.h>
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#include <cutils/native_handle.h>
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#include <errno.h>
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__BEGIN_DECLS
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/**
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* Get the native handle from an AHardwareBuffer.
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*
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* \return a non-NULL native handle on success, NULL if \a buffer is nullptr or the operation fails
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* for any reason.
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*/
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const native_handle_t* _Nullable AHardwareBuffer_getNativeHandle(
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const AHardwareBuffer* _Nonnull buffer);
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enum CreateFromHandleMethod {
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// enum values chosen to match internal GraphicBuffer::HandleWrapMethod
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AHARDWAREBUFFER_CREATE_FROM_HANDLE_METHOD_REGISTER = 2,
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AHARDWAREBUFFER_CREATE_FROM_HANDLE_METHOD_CLONE = 3,
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};
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/**
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* Create an AHardwareBuffer from a native handle.
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*
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* This function wraps a native handle in an AHardwareBuffer suitable for use by applications or
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* other parts of the system. The contents of desc will be returned by AHardwareBuffer_describe().
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*
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* If method is AHARDWAREBUFFER_CREATE_FROM_HANDLE_METHOD_REGISTER, the handle is assumed to be
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* unregistered, and it will be registered/imported before being wrapped in the AHardwareBuffer.
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* If successful, the AHardwareBuffer will own the handle.
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*
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* If method is AHARDWAREBUFFER_CREATE_FROM_HANDLE_METHOD_CLONE, the handle will be cloned and the
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* clone registered. The AHardwareBuffer will own the cloned handle but not the original.
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*
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* \return 0 on success, -EINVAL if \a desc or \a handle or outBuffer is NULL, or an error number if
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* the operation fails for any reason.
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*/
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int AHardwareBuffer_createFromHandle(const AHardwareBuffer_Desc* _Nonnull desc,
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const native_handle_t* _Nonnull handle, int32_t method,
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AHardwareBuffer* _Nullable* _Nonnull outBuffer);
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/**
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* Buffer pixel formats.
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*/
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enum {
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/* for future proofing, keep these in sync with system/graphics-base.h */
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/* same as HAL_PIXEL_FORMAT_BGRA_8888 */
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AHARDWAREBUFFER_FORMAT_B8G8R8A8_UNORM = 5,
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/* same as HAL_PIXEL_FORMAT_YV12 */
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AHARDWAREBUFFER_FORMAT_YV12 = 0x32315659,
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/* same as HAL_PIXEL_FORMAT_Y8 */
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AHARDWAREBUFFER_FORMAT_Y8 = 0x20203859,
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/* same as HAL_PIXEL_FORMAT_Y16 */
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AHARDWAREBUFFER_FORMAT_Y16 = 0x20363159,
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/* same as HAL_PIXEL_FORMAT_RAW16 */
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AHARDWAREBUFFER_FORMAT_RAW16 = 0x20,
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/* same as HAL_PIXEL_FORMAT_RAW10 */
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AHARDWAREBUFFER_FORMAT_RAW10 = 0x25,
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/* same as HAL_PIXEL_FORMAT_RAW12 */
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AHARDWAREBUFFER_FORMAT_RAW12 = 0x26,
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/* same as HAL_PIXEL_FORMAT_RAW_OPAQUE */
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AHARDWAREBUFFER_FORMAT_RAW_OPAQUE = 0x24,
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/* same as HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED */
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AHARDWAREBUFFER_FORMAT_IMPLEMENTATION_DEFINED = 0x22,
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/* same as HAL_PIXEL_FORMAT_YCBCR_422_SP */
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AHARDWAREBUFFER_FORMAT_YCbCr_422_SP = 0x10,
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/* same as HAL_PIXEL_FORMAT_YCRCB_420_SP */
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AHARDWAREBUFFER_FORMAT_YCrCb_420_SP = 0x11,
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/* same as HAL_PIXEL_FORMAT_YCBCR_422_I */
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AHARDWAREBUFFER_FORMAT_YCbCr_422_I = 0x14,
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};
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/**
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* Buffer usage flags.
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*/
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enum {
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/* for future proofing, keep these in sync with hardware/gralloc.h */
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/* The buffer will be written by the HW camera pipeline. */
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AHARDWAREBUFFER_USAGE_CAMERA_WRITE = 2UL << 16,
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/* The buffer will be read by the HW camera pipeline. */
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AHARDWAREBUFFER_USAGE_CAMERA_READ = 4UL << 16,
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/* Mask for the camera access values. */
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AHARDWAREBUFFER_USAGE_CAMERA_MASK = 6UL << 16,
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};
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/**
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* Additional options for AHardwareBuffer_allocateWithOptions. These correspond to
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* android.hardware.graphics.common.ExtendableType
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*/
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typedef struct {
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const char* _Nonnull name;
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int64_t value;
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} AHardwareBufferLongOptions;
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enum AHardwareBufferStatus : int32_t {
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/* Success, no error */
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AHARDWAREBUFFER_STATUS_OK = 0,
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/* There's insufficient memory to satisfy the request */
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AHARDWAREBUFFER_STATUS_NO_MEMORY = -ENOMEM,
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/* The given argument is invalid */
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AHARDWAREBUFFER_STATUS_BAD_VALUE = -EINVAL,
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/* The requested operation is not supported by the device */
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AHARDWAREBUFFER_STATUS_UNSUPPORTED = -ENOSYS,
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/* An unknown error occurred */
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AHARDWAREBUFFER_STATUS_UNKNOWN_ERROR = (-2147483647 - 1),
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};
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/**
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* Allocates a buffer that matches the passed AHardwareBuffer_Desc with additional options
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*
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* If allocation succeeds, the buffer can be used according to the
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* usage flags specified in its description. If a buffer is used in ways
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* not compatible with its usage flags, the results are undefined and
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* may include program termination.
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*
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* @param desc The AHardwareBuffer_Desc that describes the allocation to request. Note that `stride`
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* is ignored.
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* @param additionalOptions A pointer to an array of AHardwareBufferLongOptions with additional
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* string key + long value options that may be specified. May be null if
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* `additionalOptionsSize` is 0
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* @param additionalOptionsSize The number of additional options to pass
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* @param outBuffer The resulting buffer allocation
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* @return AHARDWAREBUFFER_STATUS_OK on success
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* AHARDWAREBUFFER_STATUS_NO_MEMORY if there's insufficient resources for the allocation
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* AHARDWAREBUFFER_STATUS_BAD_VALUE if the provided description & options are not supported
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* by the device
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* AHARDWAREBUFFER_STATUS_UNKNOWN_ERROR for any other error
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* any reason. The returned buffer has a reference count of 1.
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*/
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enum AHardwareBufferStatus AHardwareBuffer_allocateWithOptions(
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const AHardwareBuffer_Desc* _Nonnull desc,
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const AHardwareBufferLongOptions* _Nullable additionalOptions, size_t additionalOptionsSize,
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AHardwareBuffer* _Nullable* _Nonnull outBuffer) __INTRODUCED_IN(__ANDROID_API_V__);
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/**
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* Queries the dataspace of the given AHardwareBuffer.
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*
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* @param buffer The non-null buffer for which to query the Dataspace
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* @return The dataspace of the buffer, or ADATASPACE_UNKNOWN if one hasn't been set
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*/
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enum ADataSpace AHardwareBuffer_getDataSpace(const AHardwareBuffer* _Nonnull buffer)
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__INTRODUCED_IN(__ANDROID_API_V__);
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/**
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* Sets the dataspace of the given AHardwareBuffer
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* @param buffer The non-null buffer for which to set the dataspace
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* @param dataSpace The dataspace to set
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* @return AHARDWAREBUFFER_STATUS_OK on success,
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* AHARDWAREBUFFER_STATUS_UNSUPPORTED if the device doesn't support setting the dataspace,
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* AHARDWAREBUFFER_STATUS_UNKNOWN_ERROR for any other failure.
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*/
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enum AHardwareBufferStatus AHardwareBuffer_setDataSpace(AHardwareBuffer* _Nonnull buffer,
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enum ADataSpace dataSpace)
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__INTRODUCED_IN(__ANDROID_API_V__);
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__END_DECLS
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#endif /* ANDROID_VNDK_NATIVEWINDOW_AHARDWAREBUFFER_H */
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