generated from zhangwei/Matrixai
119 lines
4.8 KiB
C++
119 lines
4.8 KiB
C++
/*
|
|
* Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
* * Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* * Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in the
|
|
* documentation and/or other materials provided with the distribution.
|
|
* * Neither the name of NVIDIA CORPORATION nor the names of its
|
|
* contributors may be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY
|
|
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
|
|
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
|
|
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
|
|
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
|
|
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
|
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
|
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
*/
|
|
|
|
#ifndef _EGLSTREAM_NV_IMAGE_NATIVE_BUFFER_H
|
|
#define _EGLSTREAM_NV_IMAGE_NATIVE_BUFFER_H
|
|
|
|
#include <nvbuf_utils.h>
|
|
|
|
namespace EGLStream
|
|
{
|
|
|
|
/**
|
|
* The NV::ImageNativeBuffer extension adds an interface to create and/or
|
|
* copy EGLStream Images to NvBuffers (see nvbuf_utils.h).
|
|
*/
|
|
DEFINE_UUID(Argus::ExtensionName, NV_IMAGE_NATIVE_BUFFER, ce9e8c60,1792,11e6,bdf4,08,00,20,0c,9a,66);
|
|
|
|
namespace NV
|
|
{
|
|
|
|
/*
|
|
* Counterclockwise rotation value, in degree
|
|
*/
|
|
enum Rotation
|
|
{
|
|
ROTATION_0,
|
|
ROTATION_90,
|
|
ROTATION_180,
|
|
ROTATION_270,
|
|
ROTATION_COUNT
|
|
};
|
|
|
|
/**
|
|
* @class IImageNativeBuffer
|
|
*
|
|
* Interface that supports creating new NvBuffers and/or copying Image contents
|
|
* to existing NvBuffers.
|
|
*/
|
|
DEFINE_UUID(Argus::InterfaceID, IID_IMAGE_NATIVE_BUFFER, 2f410340,1793,11e6,bdf4,08,00,20,0c,9a,66);
|
|
class IImageNativeBuffer : public Argus::Interface
|
|
{
|
|
public:
|
|
static const Argus::InterfaceID& id() { return IID_IMAGE_NATIVE_BUFFER; }
|
|
|
|
/**
|
|
* Creates a new NvBuffer, copies the image contents to the new buffer, then
|
|
* returns the dmabuf-fd. Ownership of this dmabuf-fd is given to the caller
|
|
* and must be destroyed using NvBufferDestroy (see nvbuf_utils.h).
|
|
*
|
|
* Note that the size, format, and layout of the new buffer can be different from
|
|
* what is being used for the EGLStream, and if this is the case then scaling
|
|
* and format conversion will be performed when the image is copied to the
|
|
* new buffer. Details of this scaling and conversion are left up to the
|
|
* implementation, but the application should consider and account for any
|
|
* measured performance penalties associated with such operations.
|
|
*
|
|
* @param[in] size the size of the NvBuffer to create.
|
|
* @param[in] format the color format to use for the new NvBuffer.
|
|
* @param[in] layout the buffer layout to use for the new NvBuffer.
|
|
* @param[in] rotation flag that could be 0/90/180/270 degree.
|
|
* @param[out] status optional status return code.
|
|
* @returns -1 on failure, or a valid dmabuf-fd on success.
|
|
*/
|
|
virtual int createNvBuffer(Argus::Size2D<uint32_t> size,
|
|
NvBufferColorFormat format,
|
|
NvBufferLayout layout,
|
|
Rotation rotation = ROTATION_0,
|
|
Argus::Status* status = NULL) const = 0;
|
|
|
|
/**
|
|
* Copies the image contents to the given NvBuffer. This performs an uncropped
|
|
* (full-surface) copy of the image to the provided buffer, which is permitted
|
|
* to have different size, format, and layout attributes than those of the buffer
|
|
* backing this EGLStream image. If this is the case, scaling and format conversion
|
|
* will be performed when the image is copied to the buffer. Details of this scaling
|
|
* and conversion are left up to the implementation, but the application should
|
|
* consider and account for any measured performance penalties associated with such
|
|
* operations.
|
|
*
|
|
* @param[in] fd the dmabuf-fd of the NvBuffer to copy to.
|
|
* @param[in] rotation flag that could be 0/90/180/270 degree.
|
|
*/
|
|
virtual Argus::Status copyToNvBuffer(int fd, Rotation rotation = ROTATION_0) const = 0;
|
|
|
|
protected:
|
|
~IImageNativeBuffer() {}
|
|
};
|
|
|
|
} // namespace NV
|
|
|
|
} // namespace EGLStream
|
|
|
|
#endif // _EGLSTREAM_NV_IMAGE_NATIVE_BUFFER_H
|