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Add easy CUDA support. #1171

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d391009
Update CMakeLists.txt
gcjyzdd Aug 20, 2022
c8af27f
Update README to illustrate how to enable CUDA.
gcjyzdd Aug 20, 2022
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5 changes: 4 additions & 1 deletion CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -347,12 +347,15 @@ IF(ENABLE_CUDA)
SET(LIBFREENECT2_WITH_CUDA_SUPPORT 1)
SET(HAVE_CUDA yes)

STRING(REPLACE "\\" "/" NVCUDASAMPLES_ROOT "$ENV{NVCUDASAMPLES_ROOT}")
IF(NOT DEFINED NVCUDASAMPLES_ROOT)
STRING(REPLACE "\\" "/" NVCUDASAMPLES_ROOT "$ENV{NVCUDASAMPLES_ROOT}")
ENDIF()
STRING(REPLACE "\\" "/" NVCUDASAMPLES8_0_ROOT "$ENV{NVCUDASAMPLES8_0_ROOT}")
CUDA_INCLUDE_DIRECTORIES(
"${MY_DIR}/include/"
"${CUDA_TOOLKIT_ROOT_DIR}/samples/common/inc"
"${NVCUDASAMPLES_ROOT}/common/inc"
"${NVCUDASAMPLES_ROOT}/Common"
"${NVCUDASAMPLES8_0_ROOT}/common/inc"
)
SET(CUDA_FLAGS -use_fast_math)
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9 changes: 9 additions & 0 deletions README.md
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Expand Up @@ -81,6 +81,15 @@ When you report USB issues, please attach relevant debug log from running the pr

## Installation

### Enable CUDA (optional)

Install the latest CUDA Toolkit. Add option `-DENABLE_CUDA=ON -DNVCUDASAMPLES_ROOT=<cuda_samples_dir>` to cmake to enable CUDA. CUDA samples could be downloaded [here](https://github.com/NVIDIA/cuda-samples.git). Below is an example to build on Linux if you download CUDA samples under the same directory as libfreenect2:

``` sh
cd libfreenect2 && mkdir build && cd build
cmake .. -DENABLE_CXX11=ON -DENABLE_CUDA=ON -DNVCUDASAMPLES_ROOT=`pwd`/../../cuda-samples && make -j4
```

### Windows / Visual Studio

* Install UsbDk driver
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