add and update samples for CUDA 11.6

This commit is contained in:
Rutwik Choughule
2022-01-13 11:35:24 +05:30
parent 11de19f00c
commit 2e41896e1b
4615 changed files with 178150 additions and 181350 deletions

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{
"configurations": [
{
"name": "Linux",
"includePath": [
"${workspaceFolder}/**",
"${workspaceFolder}/../../../Common"
],
"defines": [],
"compilerPath": "/usr/local/cuda/bin/nvcc",
"cStandard": "gnu17",
"cppStandard": "gnu++14",
"intelliSenseMode": "linux-gcc-x64",
"configurationProvider": "ms-vscode.makefile-tools"
}
],
"version": 4
}

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{
"recommendations": [
"nvidia.nsight-vscode-edition",
"ms-vscode.cpptools",
"ms-vscode.makefile-tools"
]
}

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{
"configurations": [
{
"name": "CUDA C++: Launch",
"type": "cuda-gdb",
"request": "launch",
"program": "${workspaceFolder}/bicubicTexture"
}
]
}

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{
"version": "2.0.0",
"tasks": [
{
"label": "sample",
"type": "shell",
"command": "make dbg=1",
"problemMatcher": ["$nvcc"],
"group": {
"kind": "build",
"isDefault": true
}
}
]
}

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################################################################################
# Copyright (c) 2022, 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.
#
################################################################################
#
# Makefile project only supported on Mac OS X and Linux Platforms)
#
################################################################################
# Location of the CUDA Toolkit
CUDA_PATH ?= /usr/local/cuda
##############################
# start deprecated interface #
##############################
ifeq ($(x86_64),1)
$(info WARNING - x86_64 variable has been deprecated)
$(info WARNING - please use TARGET_ARCH=x86_64 instead)
TARGET_ARCH ?= x86_64
endif
ifeq ($(ARMv7),1)
$(info WARNING - ARMv7 variable has been deprecated)
$(info WARNING - please use TARGET_ARCH=armv7l instead)
TARGET_ARCH ?= armv7l
endif
ifeq ($(aarch64),1)
$(info WARNING - aarch64 variable has been deprecated)
$(info WARNING - please use TARGET_ARCH=aarch64 instead)
TARGET_ARCH ?= aarch64
endif
ifeq ($(ppc64le),1)
$(info WARNING - ppc64le variable has been deprecated)
$(info WARNING - please use TARGET_ARCH=ppc64le instead)
TARGET_ARCH ?= ppc64le
endif
ifneq ($(GCC),)
$(info WARNING - GCC variable has been deprecated)
$(info WARNING - please use HOST_COMPILER=$(GCC) instead)
HOST_COMPILER ?= $(GCC)
endif
ifneq ($(abi),)
$(error ERROR - abi variable has been removed)
endif
############################
# end deprecated interface #
############################
# architecture
HOST_ARCH := $(shell uname -m)
TARGET_ARCH ?= $(HOST_ARCH)
ifneq (,$(filter $(TARGET_ARCH),x86_64 aarch64 sbsa ppc64le armv7l))
ifneq ($(TARGET_ARCH),$(HOST_ARCH))
ifneq (,$(filter $(TARGET_ARCH),x86_64 aarch64 sbsa ppc64le))
TARGET_SIZE := 64
else ifneq (,$(filter $(TARGET_ARCH),armv7l))
TARGET_SIZE := 32
endif
else
TARGET_SIZE := $(shell getconf LONG_BIT)
endif
else
$(error ERROR - unsupported value $(TARGET_ARCH) for TARGET_ARCH!)
endif
# sbsa and aarch64 systems look similar. Need to differentiate them at host level for now.
ifeq ($(HOST_ARCH),aarch64)
ifeq ($(CUDA_PATH)/targets/sbsa-linux,$(shell ls -1d $(CUDA_PATH)/targets/sbsa-linux 2>/dev/null))
HOST_ARCH := sbsa
TARGET_ARCH := sbsa
endif
endif
ifneq ($(TARGET_ARCH),$(HOST_ARCH))
ifeq (,$(filter $(HOST_ARCH)-$(TARGET_ARCH),aarch64-armv7l x86_64-armv7l x86_64-aarch64 x86_64-sbsa x86_64-ppc64le))
$(error ERROR - cross compiling from $(HOST_ARCH) to $(TARGET_ARCH) is not supported!)
endif
endif
# When on native aarch64 system with userspace of 32-bit, change TARGET_ARCH to armv7l
ifeq ($(HOST_ARCH)-$(TARGET_ARCH)-$(TARGET_SIZE),aarch64-aarch64-32)
TARGET_ARCH = armv7l
endif
# operating system
HOST_OS := $(shell uname -s 2>/dev/null | tr "[:upper:]" "[:lower:]")
TARGET_OS ?= $(HOST_OS)
ifeq (,$(filter $(TARGET_OS),linux darwin qnx android))
$(error ERROR - unsupported value $(TARGET_OS) for TARGET_OS!)
endif
# host compiler
ifeq ($(TARGET_OS),darwin)
ifeq ($(shell expr `xcodebuild -version | grep -i xcode | awk '{print $$2}' | cut -d'.' -f1` \>= 5),1)
HOST_COMPILER ?= clang++
endif
else ifneq ($(TARGET_ARCH),$(HOST_ARCH))
ifeq ($(HOST_ARCH)-$(TARGET_ARCH),x86_64-armv7l)
ifeq ($(TARGET_OS),linux)
HOST_COMPILER ?= arm-linux-gnueabihf-g++
else ifeq ($(TARGET_OS),qnx)
ifeq ($(QNX_HOST),)
$(error ERROR - QNX_HOST must be passed to the QNX host toolchain)
endif
ifeq ($(QNX_TARGET),)
$(error ERROR - QNX_TARGET must be passed to the QNX target toolchain)
endif
export QNX_HOST
export QNX_TARGET
HOST_COMPILER ?= $(QNX_HOST)/usr/bin/arm-unknown-nto-qnx6.6.0eabi-g++
else ifeq ($(TARGET_OS),android)
HOST_COMPILER ?= arm-linux-androideabi-g++
endif
else ifeq ($(TARGET_ARCH),aarch64)
ifeq ($(TARGET_OS), linux)
HOST_COMPILER ?= aarch64-linux-gnu-g++
else ifeq ($(TARGET_OS),qnx)
ifeq ($(QNX_HOST),)
$(error ERROR - QNX_HOST must be passed to the QNX host toolchain)
endif
ifeq ($(QNX_TARGET),)
$(error ERROR - QNX_TARGET must be passed to the QNX target toolchain)
endif
export QNX_HOST
export QNX_TARGET
HOST_COMPILER ?= $(QNX_HOST)/usr/bin/q++
else ifeq ($(TARGET_OS), android)
HOST_COMPILER ?= aarch64-linux-android-clang++
endif
else ifeq ($(TARGET_ARCH),sbsa)
HOST_COMPILER ?= aarch64-linux-gnu-g++
else ifeq ($(TARGET_ARCH),ppc64le)
HOST_COMPILER ?= powerpc64le-linux-gnu-g++
endif
endif
HOST_COMPILER ?= g++
NVCC := $(CUDA_PATH)/bin/nvcc -ccbin $(HOST_COMPILER)
# internal flags
NVCCFLAGS := -m${TARGET_SIZE}
CCFLAGS :=
LDFLAGS :=
# build flags
ifeq ($(TARGET_OS),darwin)
LDFLAGS += -rpath $(CUDA_PATH)/lib
CCFLAGS += -arch $(HOST_ARCH)
else ifeq ($(HOST_ARCH)-$(TARGET_ARCH)-$(TARGET_OS),x86_64-armv7l-linux)
LDFLAGS += --dynamic-linker=/lib/ld-linux-armhf.so.3
CCFLAGS += -mfloat-abi=hard
else ifeq ($(TARGET_OS),android)
LDFLAGS += -pie
CCFLAGS += -fpie -fpic -fexceptions
endif
ifneq ($(TARGET_ARCH),$(HOST_ARCH))
ifeq ($(TARGET_ARCH)-$(TARGET_OS),armv7l-linux)
ifneq ($(TARGET_FS),)
GCCVERSIONLTEQ46 := $(shell expr `$(HOST_COMPILER) -dumpversion` \<= 4.6)
ifeq ($(GCCVERSIONLTEQ46),1)
CCFLAGS += --sysroot=$(TARGET_FS)
endif
LDFLAGS += --sysroot=$(TARGET_FS)
LDFLAGS += -rpath-link=$(TARGET_FS)/lib
LDFLAGS += -rpath-link=$(TARGET_FS)/usr/lib
LDFLAGS += -rpath-link=$(TARGET_FS)/usr/lib/arm-linux-gnueabihf
endif
endif
ifeq ($(TARGET_ARCH)-$(TARGET_OS),aarch64-linux)
ifneq ($(TARGET_FS),)
GCCVERSIONLTEQ46 := $(shell expr `$(HOST_COMPILER) -dumpversion` \<= 4.6)
ifeq ($(GCCVERSIONLTEQ46),1)
CCFLAGS += --sysroot=$(TARGET_FS)
endif
LDFLAGS += --sysroot=$(TARGET_FS)
LDFLAGS += -rpath-link=$(TARGET_FS)/lib -L$(TARGET_FS)/lib
LDFLAGS += -rpath-link=$(TARGET_FS)/lib/aarch64-linux-gnu -L$(TARGET_FS)/lib/aarch64-linux-gnu
LDFLAGS += -rpath-link=$(TARGET_FS)/usr/lib -L$(TARGET_FS)/usr/lib
LDFLAGS += -rpath-link=$(TARGET_FS)/usr/lib/aarch64-linux-gnu -L$(TARGET_FS)/usr/lib/aarch64-linux-gnu
LDFLAGS += --unresolved-symbols=ignore-in-shared-libs
CCFLAGS += -isystem=$(TARGET_FS)/usr/include -I$(TARGET_FS)/usr/include -I$(TARGET_FS)/usr/include/libdrm
CCFLAGS += -isystem=$(TARGET_FS)/usr/include/aarch64-linux-gnu -I$(TARGET_FS)/usr/include/aarch64-linux-gnu
endif
endif
ifeq ($(TARGET_ARCH)-$(TARGET_OS),aarch64-qnx)
NVCCFLAGS += -D_QNX_SOURCE
NVCCFLAGS += --qpp-config 8.3.0,gcc_ntoaarch64le
CCFLAGS += -DWIN_INTERFACE_CUSTOM -I/usr/include/aarch64-qnx-gnu
LDFLAGS += -lsocket
LDFLAGS += -L/usr/lib/aarch64-qnx-gnu
CCFLAGS += "-Wl\,-rpath-link\,/usr/lib/aarch64-qnx-gnu"
ifdef TARGET_OVERRIDE
LDFLAGS += -lslog2
endif
ifneq ($(TARGET_FS),)
LDFLAGS += -L$(TARGET_FS)/usr/lib
CCFLAGS += "-Wl\,-rpath-link\,$(TARGET_FS)/usr/lib"
LDFLAGS += -L$(TARGET_FS)/usr/libnvidia
CCFLAGS += "-Wl\,-rpath-link\,$(TARGET_FS)/usr/libnvidia"
CCFLAGS += -I$(TARGET_FS)/../include
endif
endif
endif
ifdef TARGET_OVERRIDE # cuda toolkit targets override
NVCCFLAGS += -target-dir $(TARGET_OVERRIDE)
endif
# Install directory of different arch
CUDA_INSTALL_TARGET_DIR :=
ifeq ($(TARGET_ARCH)-$(TARGET_OS),armv7l-linux)
CUDA_INSTALL_TARGET_DIR = targets/armv7-linux-gnueabihf/
else ifeq ($(TARGET_ARCH)-$(TARGET_OS),aarch64-linux)
CUDA_INSTALL_TARGET_DIR = targets/aarch64-linux/
else ifeq ($(TARGET_ARCH)-$(TARGET_OS),sbsa-linux)
CUDA_INSTALL_TARGET_DIR = targets/sbsa-linux/
else ifeq ($(TARGET_ARCH)-$(TARGET_OS),armv7l-android)
CUDA_INSTALL_TARGET_DIR = targets/armv7-linux-androideabi/
else ifeq ($(TARGET_ARCH)-$(TARGET_OS),aarch64-android)
CUDA_INSTALL_TARGET_DIR = targets/aarch64-linux-androideabi/
else ifeq ($(TARGET_ARCH)-$(TARGET_OS),armv7l-qnx)
CUDA_INSTALL_TARGET_DIR = targets/ARMv7-linux-QNX/
else ifeq ($(TARGET_ARCH)-$(TARGET_OS),aarch64-qnx)
CUDA_INSTALL_TARGET_DIR = targets/aarch64-qnx/
else ifeq ($(TARGET_ARCH),ppc64le)
CUDA_INSTALL_TARGET_DIR = targets/ppc64le-linux/
endif
# Debug build flags
ifeq ($(dbg),1)
NVCCFLAGS += -g -G
BUILD_TYPE := debug
else
BUILD_TYPE := release
endif
ALL_CCFLAGS :=
ALL_CCFLAGS += $(NVCCFLAGS)
ALL_CCFLAGS += $(EXTRA_NVCCFLAGS)
ALL_CCFLAGS += $(addprefix -Xcompiler ,$(CCFLAGS))
ALL_CCFLAGS += $(addprefix -Xcompiler ,$(EXTRA_CCFLAGS))
SAMPLE_ENABLED := 1
# This sample is not supported on QNX
ifeq ($(TARGET_OS),qnx)
$(info >>> WARNING - bicubicTexture is not supported on QNX - waiving sample <<<)
SAMPLE_ENABLED := 0
endif
ALL_LDFLAGS :=
ALL_LDFLAGS += $(ALL_CCFLAGS)
ALL_LDFLAGS += $(addprefix -Xlinker ,$(LDFLAGS))
ALL_LDFLAGS += $(addprefix -Xlinker ,$(EXTRA_LDFLAGS))
# Common includes and paths for CUDA
INCLUDES := -I../../../Common
LIBRARIES :=
################################################################################
# Makefile include to help find GL Libraries
include ./findgllib.mk
# OpenGL specific libraries
ifeq ($(TARGET_OS),darwin)
# Mac OSX specific libraries and paths to include
LIBRARIES += -L/System/Library/Frameworks/OpenGL.framework/Libraries
LIBRARIES += -lGL -lGLU
ALL_LDFLAGS += -Xlinker -framework -Xlinker GLUT
else
LIBRARIES += $(GLLINK)
LIBRARIES += -lGL -lGLU -lglut
endif
# Gencode arguments
ifeq ($(TARGET_ARCH),$(filter $(TARGET_ARCH),armv7l aarch64 sbsa))
SMS ?= 53 61 70 72 75 80 86 87
else
SMS ?= 35 37 50 52 60 61 70 75 80 86
endif
ifeq ($(SMS),)
$(info >>> WARNING - no SM architectures have been specified - waiving sample <<<)
SAMPLE_ENABLED := 0
endif
ifeq ($(GENCODE_FLAGS),)
# Generate SASS code for each SM architecture listed in $(SMS)
$(foreach sm,$(SMS),$(eval GENCODE_FLAGS += -gencode arch=compute_$(sm),code=sm_$(sm)))
# Generate PTX code from the highest SM architecture in $(SMS) to guarantee forward-compatibility
HIGHEST_SM := $(lastword $(sort $(SMS)))
ifneq ($(HIGHEST_SM),)
GENCODE_FLAGS += -gencode arch=compute_$(HIGHEST_SM),code=compute_$(HIGHEST_SM)
endif
endif
ALL_CCFLAGS += --threads 0 --std=c++11
ifeq ($(SAMPLE_ENABLED),0)
EXEC ?= @echo "[@]"
endif
################################################################################
# Target rules
all: build
build: bicubicTexture
check.deps:
ifeq ($(SAMPLE_ENABLED),0)
@echo "Sample will be waived due to the above missing dependencies"
else
@echo "Sample is ready - all dependencies have been met"
endif
bicubicTexture.o:bicubicTexture.cpp
$(EXEC) $(NVCC) $(INCLUDES) $(ALL_CCFLAGS) $(GENCODE_FLAGS) -o $@ -c $<
bicubicTexture_cuda.o:bicubicTexture_cuda.cu
$(EXEC) $(NVCC) $(INCLUDES) $(ALL_CCFLAGS) $(GENCODE_FLAGS) -o $@ -c $<
bicubicTexture: bicubicTexture.o bicubicTexture_cuda.o
$(EXEC) $(NVCC) $(ALL_LDFLAGS) $(GENCODE_FLAGS) -o $@ $+ $(LIBRARIES)
$(EXEC) mkdir -p ../../../bin/$(TARGET_ARCH)/$(TARGET_OS)/$(BUILD_TYPE)
$(EXEC) cp $@ ../../../bin/$(TARGET_ARCH)/$(TARGET_OS)/$(BUILD_TYPE)
run: build
$(EXEC) ./bicubicTexture
testrun: build
$(EXEC) ./bicubicTexture -mode=0 -file=0_nearest.ppm
$(EXEC) ./bicubicTexture -mode=1 -file=1_bilinear.ppm
$(EXEC) ./bicubicTexture -mode=2 -file=2_bicubic.ppm
$(EXEC) ./bicubicTexture -mode=3 -file=3_fastbicubic.ppm
$(EXEC) ./bicubicTexture -mode=4 -file=4_catmull-rom.ppm
clean:
rm -f bicubicTexture bicubicTexture.o bicubicTexture_cuda.o
rm -rf ../../../bin/$(TARGET_ARCH)/$(TARGET_OS)/$(BUILD_TYPE)/bicubicTexture
clobber: clean

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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE entry SYSTEM "SamplesInfo.dtd">
<entry>
<name>bicubicTexture</name>
<cuda_api_list>
<toolkit>cudaFree</toolkit>
<toolkit>cudaGraphicsMapResources</toolkit>
<toolkit>cudaFreeArray</toolkit>
<toolkit>cudaGraphicsGLRegisterBuffer</toolkit>
<toolkit>cudaGraphicsResourceGetMappedPointer</toolkit>
<toolkit>cudaDeviceSynchronize</toolkit>
<toolkit>cudaDestroyTextureObject</toolkit>
<toolkit>cudaCreateTextureObject</toolkit>
<toolkit>cudaMalloc</toolkit>
<toolkit>cudaMallocArray</toolkit>
<toolkit>cudaCreateChannelDesc</toolkit>
<toolkit>cudaGraphicsUnregisterResource</toolkit>
<toolkit>cudaGraphicsUnmapResources</toolkit>
<toolkit>cudaMemcpy</toolkit>
<toolkit>cudaGetDeviceProperties</toolkit>
</cuda_api_list>
<description><![CDATA[This sample demonstrates how to efficiently implement a Bicubic B-spline interpolation filter with CUDA texture.]]></description>
<devicecompilation>whole</devicecompilation>
<files>
<file>data\teapot512.raw</file>
<file>data\0_nearest.ppm</file>
<file>data\1_bilinear.ppm</file>
<file>data\2_bicubic.ppm</file>
<file>data\3_fastbicubic.ppm</file>
<file>data\4_catmull-rom.ppm</file>
</files>
<includepaths>
<path>./</path>
<path>../</path>
<path>../../../Common</path>
</includepaths>
<keyconcepts>
<concept level="basic">Graphics Interop</concept>
<concept level="basic">Image Processing</concept>
</keyconcepts>
<keywords>
<keyword>openGL</keyword>
</keywords>
<libraries>
<library>GLU</library>
<library>GL</library>
<library framework="true" os="macosx">GLUT</library>
<library os="linux">GLEW</library>
<library os="linux">glut</library>
<library os="linux">X11</library>
</libraries>
<librarypaths>
<path arch="x86_64" os="linux">../../../common/lib/linux/x86_64</path>
<path arch="armv7l" os="linux">../../../common/lib/linux/armv7l</path>
<path os="macosx">../../../common/lib/darwin</path>
</librarypaths>
<nsight_eclipse>true</nsight_eclipse>
<primary_file>bicubicTexture.cpp</primary_file>
<qatests>
<qatest>-mode=0 -file=0_nearest.ppm</qatest>
<qatest>-mode=1 -file=1_bilinear.ppm</qatest>
<qatest>-mode=2 -file=2_bicubic.ppm</qatest>
<qatest>-mode=3 -file=3_fastbicubic.ppm</qatest>
<qatest>-mode=4 -file=4_catmull-rom.ppm</qatest>
</qatests>
<required_dependencies>
<dependency>X11</dependency>
<dependency>GL</dependency>
</required_dependencies>
<scopes>
<scope>1:CUDA Basic Topics</scope>
<scope>2:Texture</scope>
<scope>2:Image Processing</scope>
<scope>2:Computer Vision</scope>
</scopes>
<sm-arch>sm35</sm-arch>
<sm-arch>sm37</sm-arch>
<sm-arch>sm50</sm-arch>
<sm-arch>sm52</sm-arch>
<sm-arch>sm53</sm-arch>
<sm-arch>sm60</sm-arch>
<sm-arch>sm61</sm-arch>
<sm-arch>sm70</sm-arch>
<sm-arch>sm72</sm-arch>
<sm-arch>sm75</sm-arch>
<sm-arch>sm80</sm-arch>
<sm-arch>sm86</sm-arch>
<sm-arch>sm87</sm-arch>
<supported_envs>
<env>
<arch>x86_64</arch>
<platform>linux</platform>
</env>
<env>
<platform>windows7</platform>
</env>
<env>
<arch>x86_64</arch>
<platform>macosx</platform>
</env>
<env>
<arch>arm</arch>
</env>
<env>
<arch>sbsa</arch>
</env>
</supported_envs>
<supported_sm_architectures>
<include>all</include>
</supported_sm_architectures>
<title>Bicubic B-spline Interoplation</title>
<type>exe</type>
</entry>

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# bicubicTexture - Bicubic B-spline Interoplation
## Description
This sample demonstrates how to efficiently implement a Bicubic B-spline interpolation filter with CUDA texture.
## Key Concepts
Graphics Interop, Image Processing
## Supported SM Architectures
[SM 3.5 ](https://developer.nvidia.com/cuda-gpus) [SM 3.7 ](https://developer.nvidia.com/cuda-gpus) [SM 5.0 ](https://developer.nvidia.com/cuda-gpus) [SM 5.2 ](https://developer.nvidia.com/cuda-gpus) [SM 5.3 ](https://developer.nvidia.com/cuda-gpus) [SM 6.0 ](https://developer.nvidia.com/cuda-gpus) [SM 6.1 ](https://developer.nvidia.com/cuda-gpus) [SM 7.0 ](https://developer.nvidia.com/cuda-gpus) [SM 7.2 ](https://developer.nvidia.com/cuda-gpus) [SM 7.5 ](https://developer.nvidia.com/cuda-gpus) [SM 8.0 ](https://developer.nvidia.com/cuda-gpus) [SM 8.6 ](https://developer.nvidia.com/cuda-gpus) [SM 8.7 ](https://developer.nvidia.com/cuda-gpus)
## Supported OSes
Linux, Windows
## Supported CPU Architecture
x86_64, armv7l
## CUDA APIs involved
### [CUDA Runtime API](http://docs.nvidia.com/cuda/cuda-runtime-api/index.html)
cudaFree, cudaGraphicsMapResources, cudaFreeArray, cudaGraphicsGLRegisterBuffer, cudaGraphicsResourceGetMappedPointer, cudaDeviceSynchronize, cudaDestroyTextureObject, cudaCreateTextureObject, cudaMalloc, cudaMallocArray, cudaCreateChannelDesc, cudaGraphicsUnregisterResource, cudaGraphicsUnmapResources, cudaMemcpy, cudaGetDeviceProperties
## Dependencies needed to build/run
[X11](../../README.md#x11), [GL](../../README.md#gl)
## Prerequisites
Download and install the [CUDA Toolkit 11.6](https://developer.nvidia.com/cuda-downloads) for your corresponding platform.
Make sure the dependencies mentioned in [Dependencies]() section above are installed.
## Build and Run
### Windows
The Windows samples are built using the Visual Studio IDE. Solution files (.sln) are provided for each supported version of Visual Studio, using the format:
```
*_vs<version>.sln - for Visual Studio <version>
```
Each individual sample has its own set of solution files in its directory:
To build/examine all the samples at once, the complete solution files should be used. To build/examine a single sample, the individual sample solution files should be used.
> **Note:** Some samples require that the Microsoft DirectX SDK (June 2010 or newer) be installed and that the VC++ directory paths are properly set up (**Tools > Options...**). Check DirectX Dependencies section for details."
### Linux
The Linux samples are built using makefiles. To use the makefiles, change the current directory to the sample directory you wish to build, and run make:
```
$ cd <sample_dir>
$ make
```
The samples makefiles can take advantage of certain options:
* **TARGET_ARCH=<arch>** - cross-compile targeting a specific architecture. Allowed architectures are x86_64, armv7l.
By default, TARGET_ARCH is set to HOST_ARCH. On a x86_64 machine, not setting TARGET_ARCH is the equivalent of setting TARGET_ARCH=x86_64.<br/>
`$ make TARGET_ARCH=x86_64` <br/> `$ make TARGET_ARCH=armv7l` <br/>
See [here](http://docs.nvidia.com/cuda/cuda-samples/index.html#cross-samples) for more details.
* **dbg=1** - build with debug symbols
```
$ make dbg=1
```
* **SMS="A B ..."** - override the SM architectures for which the sample will be built, where `"A B ..."` is a space-delimited list of SM architectures. For example, to generate SASS for SM 50 and SM 60, use `SMS="50 60"`.
```
$ make SMS="50 60"
```
* **HOST_COMPILER=<host_compiler>** - override the default g++ host compiler. See the [Linux Installation Guide](http://docs.nvidia.com/cuda/cuda-installation-guide-linux/index.html#system-requirements) for a list of supported host compilers.
```
$ make HOST_COMPILER=g++
```
## References (for more details)

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/* Copyright (c) 2022, 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.
*/
/*
Bicubic texture filtering sample
sgreen 6/2008
This sample demonstrates how to efficiently implement bicubic texture
filtering in CUDA.
Bicubic filtering is a higher order interpolation method that produces
smoother results than bilinear interpolation:
http://en.wikipedia.org/wiki/Bicubic
It requires reading a 4 x 4 pixel neighbourhood rather than the
2 x 2 area required by bilinear filtering.
Current graphics hardware doesn't support bicubic filtering natively,
but it is possible to compose a bicubic filter using just 4 bilinear
lookups by offsetting the sample position within each texel and weighting
the samples correctly. The only disadvantage to this method is that the
hardware only maintains 9-bits of filtering precision within each texel.
See "Fast Third-Order Texture Filtering", Sigg & Hadwiger, GPU Gems 2:
https://developer.nvidia.com/gpugems/gpugems2/part-iii-high-quality-rendering/chapter-20-fast-third-order-texture-filtering
v1.1 - updated to include the brute force method using 16 texture lookups.
v1.2 - added Catmull-Rom interpolation
Example performance results from GeForce 8800 GTS:
Bilinear - 5500 MPixels/sec
Bicubic - 1400 MPixels/sec
Fast Bicubic - 2100 MPixels/sec
*/
// OpenGL Graphics includes
#include <helper_gl.h>
#if defined(__APPLE__) || defined(MACOSX)
#pragma clang diagnostic ignored "-Wdeprecated-declarations"
#include <GLUT/glut.h>
#else
#include <GL/freeglut.h>
#endif
// Includes
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <math.h>
// CUDA system and GL includes
#include <cuda_runtime.h>
#include <cuda_gl_interop.h>
// Helper functions
#include <helper_functions.h> // CUDA SDK Helper functions
#include <helper_cuda.h> // CUDA device initialization helper functions
typedef unsigned int uint;
typedef unsigned char uchar;
#define USE_BUFFER_TEX 0
#ifndef MAX
#define MAX(a, b) ((a < b) ? b : a)
#endif
// Auto-Verification Code
const int frameCheckNumber = 4;
int fpsCount = 0; // FPS count for averaging
int fpsLimit = 4; // FPS limit for sampling
int g_Index = 0;
unsigned int frameCount = 0;
unsigned int g_TotalErrors = 0;
StopWatchInterface *timer = 0;
bool g_Verify = false;
int *pArgc = NULL;
char **pArgv = NULL;
#define MAX_EPSILON_ERROR 5.0f
#define REFRESH_DELAY 10 // ms
static const char *sSDKsample = "CUDA BicubicTexture";
// Define the files that are to be save and the reference images for validation
const char *sFilterMode[] = {"Nearest", "Bilinear", "Bicubic",
"Fast Bicubic", "Catmull-Rom", NULL};
const char *sOriginal[] = {"0_nearest.ppm", "1_bilinear.ppm",
"2_bicubic.ppm", "3_fastbicubic.ppm",
"4_catmull-rom.ppm", NULL};
const char *sReference[] = {"0_nearest.ppm", "1_bilinear.ppm",
"2_bicubic.ppm", "3_fastbicubic.ppm",
"4_catmull-rom.ppm", NULL};
const char *srcImageFilename = "teapot512.pgm";
char *dumpFilename = NULL;
uint width = 512, height = 512;
uint imageWidth, imageHeight;
dim3 blockSize(16, 16);
dim3 gridSize(width / blockSize.x, height / blockSize.y);
enum eFilterMode {
MODE_NEAREST,
MODE_BILINEAR,
MODE_BICUBIC,
MODE_FAST_BICUBIC,
MODE_CATMULL_ROM,
NUM_MODES
};
eFilterMode g_FilterMode = MODE_FAST_BICUBIC;
bool drawCurves = false;
GLuint pbo = 0; // OpenGL pixel buffer object
struct cudaGraphicsResource *cuda_pbo_resource; // handles OpenGL-CUDA exchange
GLuint displayTex = 0;
GLuint bufferTex = 0;
GLuint fprog; // fragment program (shader)
float tx = -27.75f, ty = -189.0f; // image translation
float scale = 0.125f; // image scale
float cx, cy; // image centre
void display();
void initGLBuffers();
void runBenchmark(int iterations);
void cleanup();
#define GL_TEXTURE_TYPE GL_TEXTURE_RECTANGLE_ARB
//#define GL_TEXTURE_TYPE GL_TEXTURE_2D
extern "C" void initGL(int *argc, char **argv);
extern "C" void loadImageData(int argc, char **argv);
extern "C" void initTexture(int imageWidth, int imageHeight, uchar *h_data);
extern "C" void freeTexture();
extern "C" void render(int width, int height, float tx, float ty, float scale,
float cx, float cy, dim3 blockSize, dim3 gridSize,
eFilterMode filter_mode, uchar4 *output);
// w0, w1, w2, and w3 are the four cubic B-spline basis functions
float bspline_w0(float a) {
return (1.0f / 6.0f) * (-a * a * a + 3.0f * a * a - 3.0f * a + 1.0f);
}
float bspline_w1(float a) {
return (1.0f / 6.0f) * (3.0f * a * a * a - 6.0f * a * a + 4.0f);
}
float bspline_w2(float a) {
return (1.0f / 6.0f) * (-3.0f * a * a * a + 3.0f * a * a + 3.0f * a + 1.0f);
}
__host__ __device__ float bspline_w3(float a) {
return (1.0f / 6.0f) * (a * a * a);
}
void computeFPS() {
frameCount++;
fpsCount++;
if (fpsCount == fpsLimit - 1) {
g_Verify = true;
}
if (fpsCount == fpsLimit) {
char fps[256];
float ifps = 1.f / (sdkGetAverageTimerValue(&timer) / 1000.f);
sprintf(fps, "%s %s <%s>: %3.1f fps", "", sSDKsample,
sFilterMode[g_FilterMode], ifps);
glutSetWindowTitle(fps);
fpsCount = 0;
sdkResetTimer(&timer);
}
}
void plotCurve(float (*func)(float)) {
const int steps = 100;
glBegin(GL_LINE_STRIP);
for (int i = 0; i < steps; i++) {
float x = i / (float)(steps - 1);
glVertex2f(x, func(x));
}
glEnd();
}
// display results using OpenGL (called by GLUT)
void display() {
sdkStartTimer(&timer);
// map PBO to get CUDA device pointer
uchar4 *d_output;
checkCudaErrors(cudaGraphicsMapResources(1, &cuda_pbo_resource, 0));
size_t num_bytes;
checkCudaErrors(cudaGraphicsResourceGetMappedPointer(
(void **)&d_output, &num_bytes, cuda_pbo_resource));
render(imageWidth, imageHeight, tx, ty, scale, cx, cy, blockSize, gridSize,
g_FilterMode, d_output);
checkCudaErrors(cudaGraphicsUnmapResources(1, &cuda_pbo_resource, 0));
// Common display path
{
// display results
glClear(GL_COLOR_BUFFER_BIT);
#if USE_BUFFER_TEX
// display using buffer texture
glBindTexture(GL_TEXTURE_BUFFER_EXT, bufferTex);
glBindProgramARB(GL_FRAGMENT_PROGRAM_ARB, fprog);
glEnable(GL_FRAGMENT_PROGRAM_ARB);
glProgramLocalParameterI4iNV(GL_FRAGMENT_PROGRAM_ARB, 0, width, 0, 0, 0);
#else
// download image from PBO to OpenGL texture
glBindBuffer(GL_PIXEL_UNPACK_BUFFER_ARB, pbo);
glBindTexture(GL_TEXTURE_TYPE, displayTex);
glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
glTexSubImage2D(GL_TEXTURE_TYPE, 0, 0, 0, width, height, GL_BGRA,
GL_UNSIGNED_BYTE, 0);
glEnable(GL_TEXTURE_TYPE);
#endif
// draw textured quad
glDisable(GL_DEPTH_TEST);
glBegin(GL_QUADS);
glTexCoord2f(0.0f, (GLfloat)height);
glVertex2f(0.0f, 0.0f);
glTexCoord2f((GLfloat)width, (GLfloat)height);
glVertex2f(1.0f, 0.0f);
glTexCoord2f((GLfloat)width, 0.0f);
glVertex2f(1.0f, 1.0f);
glTexCoord2f(0.0f, 0.0f);
glVertex2f(0.0f, 1.0f);
glEnd();
glDisable(GL_TEXTURE_TYPE);
glDisable(GL_FRAGMENT_PROGRAM_ARB);
glBindBuffer(GL_PIXEL_UNPACK_BUFFER_ARB, 0);
if (drawCurves) {
// draw spline curves
glPushMatrix();
glScalef(0.25, 0.25, 1.0);
glTranslatef(0.0, 2.0, 0.0);
glColor3f(1.0, 0.0, 0.0);
plotCurve(bspline_w3);
glTranslatef(1.0, 0.0, 0.0);
glColor3f(0.0, 1.0, 0.0);
plotCurve(bspline_w2);
glTranslatef(1.0, 0.0, 0.0);
glColor3f(0.0, 0.0, 1.0);
plotCurve(bspline_w1);
glTranslatef(1.0, 0.0, 0.0);
glColor3f(1.0, 0.0, 1.0);
plotCurve(bspline_w0);
glPopMatrix();
glColor3f(1.0, 1.0, 1.0);
}
}
glutSwapBuffers();
glutReportErrors();
sdkStopTimer(&timer);
computeFPS();
}
// GLUT callback functions
void timerEvent(int value) {
if (glutGetWindow()) {
glutPostRedisplay();
glutTimerFunc(REFRESH_DELAY, timerEvent, 0);
}
}
void keyboard(unsigned char key, int /*x*/, int /*y*/) {
switch (key) {
case 27:
#if defined(__APPLE__) || defined(MACOSX)
exit(EXIT_SUCCESS);
#else
glutDestroyWindow(glutGetWindow());
return;
#endif
case '1':
g_FilterMode = MODE_NEAREST;
break;
case '2':
g_FilterMode = MODE_BILINEAR;
break;
case '3':
g_FilterMode = MODE_BICUBIC;
break;
case '4':
g_FilterMode = MODE_FAST_BICUBIC;
break;
case '5':
g_FilterMode = MODE_CATMULL_ROM;
break;
case '=':
case '+':
scale *= 0.5f;
break;
case '-':
scale *= 2.0f;
break;
case 'r':
scale = 1.0f;
tx = ty = 0.0f;
break;
case 'd':
printf("%f, %f, %f\n", tx, ty, scale);
break;
case 'b':
runBenchmark(500);
break;
case 'c':
drawCurves ^= 1;
break;
default:
break;
}
if (key >= '1' && key <= '5') {
printf("> FilterMode[%d] = %s\n", g_FilterMode + 1,
sFilterMode[g_FilterMode]);
}
}
int ox, oy;
int buttonState = 0;
void mouse(int button, int state, int x, int y) {
if (state == GLUT_DOWN) {
buttonState |= 1 << button;
} else if (state == GLUT_UP) {
buttonState = 0;
}
ox = x;
oy = y;
}
void motion(int x, int y) {
float dx, dy;
dx = (float)(x - ox);
dy = (float)(y - oy);
if (buttonState & 1) {
// left = translate
tx -= dx * scale;
ty -= dy * scale;
} else if (buttonState & 2) {
// middle = zoom
scale -= dy / 1000.0f;
}
ox = x;
oy = y;
}
void reshape(int x, int y) {
width = x;
height = y;
imageWidth = width;
imageHeight = height;
initGLBuffers();
glViewport(0, 0, x, y);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0.0, 1.0, 0.0, 1.0, 0.0, 1.0);
}
void cleanup() {
freeTexture();
checkCudaErrors(cudaGraphicsUnregisterResource(cuda_pbo_resource));
glDeleteBuffers(1, &pbo);
#if USE_BUFFER_TEX
glDeleteTextures(1, &bufferTex);
glDeleteProgramsARB(1, &fprog);
#else
glDeleteTextures(1, &displayTex);
#endif
sdkDeleteTimer(&timer);
}
int iDivUp(int a, int b) { return (a % b != 0) ? (a / b + 1) : (a / b); }
void initGLBuffers() {
if (pbo) {
// delete old buffer
checkCudaErrors(cudaGraphicsUnregisterResource(cuda_pbo_resource));
glDeleteBuffers(1, &pbo);
}
// create pixel buffer object for display
glGenBuffers(1, &pbo);
glBindBuffer(GL_PIXEL_UNPACK_BUFFER_ARB, pbo);
glBufferData(GL_PIXEL_UNPACK_BUFFER_ARB, width * height * sizeof(uchar4), 0,
GL_STREAM_DRAW_ARB);
glBindBuffer(GL_PIXEL_UNPACK_BUFFER_ARB, 0);
checkCudaErrors(cudaGraphicsGLRegisterBuffer(
&cuda_pbo_resource, pbo, cudaGraphicsMapFlagsWriteDiscard));
#if USE_BUFFER_TEX
// create buffer texture, attach to pbo
if (bufferTex) {
glDeleteTextures(1, &bufferTex);
}
glGenTextures(1, &bufferTex);
glBindTexture(GL_TEXTURE_BUFFER_EXT, bufferTex);
glTexBufferEXT(GL_TEXTURE_BUFFER_EXT, GL_RGBA8, pbo);
glBindTexture(GL_TEXTURE_BUFFER_EXT, 0);
#else
// create texture for display
if (displayTex) {
glDeleteTextures(1, &displayTex);
}
glGenTextures(1, &displayTex);
glBindTexture(GL_TEXTURE_TYPE, displayTex);
glTexImage2D(GL_TEXTURE_TYPE, 0, GL_RGBA8, width, height, 0, GL_RGBA,
GL_UNSIGNED_BYTE, NULL);
glTexParameteri(GL_TEXTURE_TYPE, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
glTexParameteri(GL_TEXTURE_TYPE, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
glBindTexture(GL_TEXTURE_TYPE, 0);
#endif
// calculate new grid size
gridSize = dim3(iDivUp(width, blockSize.x), iDivUp(height, blockSize.y));
}
void mainMenu(int i) { keyboard(i, 0, 0); }
void initMenus() {
glutCreateMenu(mainMenu);
glutAddMenuEntry("Nearest [1]", '1');
glutAddMenuEntry("Bilinear [2]", '2');
glutAddMenuEntry("Bicubic [3]", '3');
glutAddMenuEntry("Fast Bicubic [4]", '4');
glutAddMenuEntry("Catmull-Rom [5]", '5');
glutAddMenuEntry("Zoom in [=]", '=');
glutAddMenuEntry("Zoom out [-]", '-');
glutAddMenuEntry("Benchmark [b]", 'b');
glutAddMenuEntry("DrawCurves [c]", 'c');
glutAddMenuEntry("Quit [esc]", 27);
glutAttachMenu(GLUT_RIGHT_BUTTON);
}
void runBenchmark(int iterations) {
printf("[%s] (Benchmark Mode)\n", sSDKsample);
sdkCreateTimer(&timer);
uchar4 *d_output;
checkCudaErrors(cudaGraphicsMapResources(1, &cuda_pbo_resource, 0));
size_t num_bytes;
checkCudaErrors(cudaGraphicsResourceGetMappedPointer(
(void **)&d_output, &num_bytes, cuda_pbo_resource));
sdkStartTimer(&timer);
for (int i = 0; i < iterations; ++i) {
render(imageWidth, imageHeight, tx, ty, scale, cx, cy, blockSize, gridSize,
g_FilterMode, d_output);
}
cudaDeviceSynchronize();
sdkStopTimer(&timer);
float time = sdkGetTimerValue(&timer) / (float)iterations;
checkCudaErrors(cudaGraphicsUnmapResources(1, &cuda_pbo_resource, 0));
printf("time: %0.3f ms, %f Mpixels/sec\n", time,
(width * height / (time * 0.001f)) / 1e6);
}
void runAutoTest(int argc, char **argv, const char *dump_filename,
eFilterMode filter_mode) {
cudaDeviceProp deviceProps;
int devID = findCudaDevice(argc, (const char **)argv);
checkCudaErrors(cudaGetDeviceProperties(&deviceProps, devID));
printf("[%s] (automated testing w/ readback)\n", sSDKsample);
printf("CUDA device [%s] has %d Multi-Processors\n", deviceProps.name,
deviceProps.multiProcessorCount);
loadImageData(argc, argv);
uchar4 *d_output;
checkCudaErrors(cudaMalloc((void **)&d_output, imageWidth * imageHeight * 4));
unsigned int *h_result =
(unsigned int *)malloc(width * height * sizeof(unsigned int));
printf("AutoTest: %s Filter Mode: <%s>\n", sSDKsample,
sFilterMode[g_FilterMode]);
render(imageWidth, imageHeight, tx, ty, scale, cx, cy, blockSize, gridSize,
filter_mode, d_output);
// check if kernel execution generated an error
getLastCudaError("Error: render (bicubicTexture) Kernel execution FAILED");
checkCudaErrors(cudaDeviceSynchronize());
cudaMemcpy(h_result, d_output, imageWidth * imageHeight * 4,
cudaMemcpyDeviceToHost);
sdkSavePPM4ub(dump_filename, (unsigned char *)h_result, imageWidth,
imageHeight);
checkCudaErrors(cudaFree(d_output));
free(h_result);
}
#if USE_BUFFER_TEX
// fragment program for reading from buffer texture
static const char *shaderCode =
"!!NVfp4.0\n"
"INT PARAM width = program.local[0];\n"
"INT TEMP index;\n"
"FLR.S index, fragment.texcoord;\n"
"MAD.S index.x, index.y, width, index.x;\n" // compute 1D index from 2D
// coords
"TXF result.color, index.x, texture[0], BUFFER;\n"
"END";
#endif
GLuint compileASMShader(GLenum program_type, const char *code) {
GLuint program_id;
glGenProgramsARB(1, &program_id);
glBindProgramARB(program_type, program_id);
glProgramStringARB(program_type, GL_PROGRAM_FORMAT_ASCII_ARB,
(GLsizei)strlen(code), (GLubyte *)code);
GLint error_pos;
glGetIntegerv(GL_PROGRAM_ERROR_POSITION_ARB, &error_pos);
if (error_pos != -1) {
const GLubyte *error_string;
error_string = glGetString(GL_PROGRAM_ERROR_STRING_ARB);
fprintf(stderr, "Program error at position: %d\n%s\n", (int)error_pos,
error_string);
return 0;
}
return program_id;
}
void initialize(int argc, char **argv) {
printf("[%s] (OpenGL Mode)\n", sSDKsample);
initGL(&argc, argv);
// use command-line specified CUDA device, otherwise use device with highest
// Gflops/s
int devID = findCudaDevice(argc, (const char **)argv);
// get number of SMs on this GPU
cudaDeviceProp deviceProps;
checkCudaErrors(cudaGetDeviceProperties(&deviceProps, devID));
printf("CUDA device [%s] has %d Multi-Processors\n", deviceProps.name,
deviceProps.multiProcessorCount);
// Create the timer (for fps measurement)
sdkCreateTimer(&timer);
// load image from disk
loadImageData(argc, argv);
printf(
"\n"
"\tControls\n"
"\t=/- : Zoom in/out\n"
"\tb : Run Benchmark g_FilterMode\n"
"\tc : Draw Bicubic Spline Curve\n"
"\t[esc] - Quit\n\n"
"\tPress number keys to change filtering g_FilterMode:\n\n"
"\t1 : nearest filtering\n"
"\t2 : bilinear filtering\n"
"\t3 : bicubic filtering\n"
"\t4 : fast bicubic filtering\n"
"\t5 : Catmull-Rom filtering\n\n");
initGLBuffers();
#if USE_BUFFER_TEX
fprog = compileASMShader(GL_FRAGMENT_PROGRAM_ARB, shaderCode);
if (!fprog) {
exit(EXIT_SUCCESS);
}
#endif
}
void initGL(int *argc, char **argv) {
// initialize GLUT callback functions
glutInit(argc, argv);
glutInitDisplayMode(GLUT_RGBA | GLUT_ALPHA | GLUT_DOUBLE | GLUT_DEPTH);
glutInitWindowSize(width, height);
glutCreateWindow("CUDA bicubic texture filtering");
glutDisplayFunc(display);
glutKeyboardFunc(keyboard);
glutMouseFunc(mouse);
glutMotionFunc(motion);
glutReshapeFunc(reshape);
glutTimerFunc(REFRESH_DELAY, timerEvent, 0);
#if defined(__APPLE__) || defined(MACOSX)
atexit(cleanup);
#else
glutCloseFunc(cleanup);
#endif
initMenus();
if (!isGLVersionSupported(2, 0) ||
!areGLExtensionsSupported("GL_ARB_pixel_buffer_object")) {
fprintf(stderr, "Required OpenGL extensions are missing.");
exit(EXIT_FAILURE);
}
#if USE_BUFFER_TEX
if (!areGLExtensionsSupported("GL_EXT_texture_buffer_object")) {
fprintf(stderr,
"OpenGL extension: GL_EXT_texture_buffer_object missing.\n");
exit(EXIT_FAILURE);
}
if (!areGLExtensionsSupported("GL_NV_gpu_program4")) {
fprintf(stderr, "OpenGL extension: GL_NV_gpu_program4 missing.\n");
exit(EXIT_FAILURE);
}
#endif
}
void loadImageData(int argc, char **argv) {
// load image from disk
uchar *h_data = NULL;
char *srcImagePath = NULL;
if ((srcImagePath = sdkFindFilePath(srcImageFilename, argv[0])) == NULL) {
printf("bicubicTexture loadImageData() could not find <%s>\nExiting...\n",
srcImageFilename);
exit(EXIT_FAILURE);
}
sdkLoadPGM<unsigned char>(srcImagePath, &h_data, &imageWidth, &imageHeight);
printf("Loaded '%s', %d x %d pixels\n", srcImageFilename, imageWidth,
imageHeight);
cx = imageWidth * 0.5f;
cy = imageHeight * 0.5f;
// initialize texture
initTexture(imageWidth, imageHeight, h_data);
}
void printHelp() {
printf("bicubicTexture Usage:\n");
printf("\t-file=output.ppm (output file to save to disk)\n");
printf(
"\t-mode=n (0=Nearest, 1=Bilinear, 2=Bicubic, 3=Fast-Bicubic, "
"4=Catmull-Rom\n");
}
////////////////////////////////////////////////////////////////////////////////
// Program main
////////////////////////////////////////////////////////////////////////////////
int main(int argc, char **argv) {
pArgc = &argc;
pArgv = argv;
// parse arguments
char *filename;
#if defined(__linux__)
setenv("DISPLAY", ":0", 0);
#endif
printf("Starting bicubicTexture\n");
if (checkCmdLineFlag(argc, (const char **)argv, "help")) {
printHelp();
exit(EXIT_SUCCESS);
}
if (checkCmdLineFlag(argc, (const char **)argv, "mode")) {
g_FilterMode =
(eFilterMode)getCmdLineArgumentInt(argc, (const char **)argv, "mode");
if (g_FilterMode < 0 || g_FilterMode >= NUM_MODES) {
printf("Invalid Mode setting %d\n", g_FilterMode);
exit(EXIT_FAILURE);
}
}
if (getCmdLineArgumentString(argc, (const char **)argv, "file", &filename)) {
dumpFilename = filename;
fpsLimit = frameCheckNumber;
// Running CUDA kernel (bicubicFiltering) without visualization (QA
// Testing/Verification)
runAutoTest(argc, argv, (const char *)dumpFilename, g_FilterMode);
} else {
// This runs the CUDA kernel (bicubicFiltering) + OpenGL visualization
initialize(argc, argv);
glutMainLoop();
}
exit(EXIT_SUCCESS);
}

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@@ -0,0 +1,128 @@
/* Copyright (c) 2022, 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 _BICUBICTEXTURE_CU_
#define _BICUBICTEXTURE_CU_
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <helper_math.h>
// includes, cuda
#include <helper_cuda.h>
typedef unsigned int uint;
typedef unsigned char uchar;
#include "bicubicTexture_kernel.cuh"
cudaArray *d_imageArray = 0;
extern "C" void initTexture(int imageWidth, int imageHeight, uchar *h_data) {
// allocate array and copy image data
cudaChannelFormatDesc channelDesc =
cudaCreateChannelDesc(8, 0, 0, 0, cudaChannelFormatKindUnsigned);
checkCudaErrors(
cudaMallocArray(&d_imageArray, &channelDesc, imageWidth, imageHeight));
checkCudaErrors(cudaMemcpy2DToArray(
d_imageArray, 0, 0, h_data, imageWidth * sizeof(uchar),
imageWidth * sizeof(uchar), imageHeight, cudaMemcpyHostToDevice));
free(h_data);
cudaResourceDesc texRes;
memset(&texRes, 0, sizeof(cudaResourceDesc));
texRes.resType = cudaResourceTypeArray;
texRes.res.array.array = d_imageArray;
cudaTextureDesc texDescr;
memset(&texDescr, 0, sizeof(cudaTextureDesc));
texDescr.normalizedCoords = false;
texDescr.filterMode = cudaFilterModeLinear;
texDescr.addressMode[0] = cudaAddressModeClamp;
texDescr.addressMode[1] = cudaAddressModeClamp;
texDescr.readMode = cudaReadModeNormalizedFloat;
checkCudaErrors(
cudaCreateTextureObject(&texObjLinear, &texRes, &texDescr, NULL));
memset(&texDescr, 0, sizeof(cudaTextureDesc));
texDescr.normalizedCoords = false;
texDescr.filterMode = cudaFilterModePoint;
texDescr.addressMode[0] = cudaAddressModeClamp;
texDescr.addressMode[1] = cudaAddressModeClamp;
texDescr.readMode = cudaReadModeNormalizedFloat;
checkCudaErrors(
cudaCreateTextureObject(&texObjPoint, &texRes, &texDescr, NULL));
}
extern "C" void freeTexture() {
checkCudaErrors(cudaDestroyTextureObject(texObjPoint));
checkCudaErrors(cudaDestroyTextureObject(texObjLinear));
checkCudaErrors(cudaFreeArray(d_imageArray));
}
// render image using CUDA
extern "C" void render(int width, int height, float tx, float ty, float scale,
float cx, float cy, dim3 blockSize, dim3 gridSize,
int filter_mode, uchar4 *output) {
// call CUDA kernel, writing results to PBO memory
switch (filter_mode) {
case MODE_NEAREST:
d_render<<<gridSize, blockSize>>>(output, width, height, tx, ty, scale,
cx, cy, texObjPoint);
break;
case MODE_BILINEAR:
d_render<<<gridSize, blockSize>>>(output, width, height, tx, ty, scale,
cx, cy, texObjLinear);
break;
case MODE_BICUBIC:
d_renderBicubic<<<gridSize, blockSize>>>(output, width, height, tx, ty,
scale, cx, cy, texObjPoint);
break;
case MODE_FAST_BICUBIC:
d_renderFastBicubic<<<gridSize, blockSize>>>(
output, width, height, tx, ty, scale, cx, cy, texObjLinear);
break;
case MODE_CATROM:
d_renderCatRom<<<gridSize, blockSize>>>(output, width, height, tx, ty,
scale, cx, cy, texObjPoint);
break;
}
getLastCudaError("kernel failed");
}
#endif

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/* Copyright (c) 2022, 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.
*/
/*
Bicubic filtering
See GPU Gems 2: "Fast Third-Order Texture Filtering", Sigg & Hadwiger
https://developer.nvidia.com/gpugems/gpugems2/part-iii-high-quality-rendering/chapter-20-fast-third-order-texture-filtering
Reformulation thanks to Keenan Crane
*/
#ifndef _BICUBICTEXTURE_KERNEL_CUH_
#define _BICUBICTEXTURE_KERNEL_CUH_
enum Mode {
MODE_NEAREST,
MODE_BILINEAR,
MODE_BICUBIC,
MODE_FAST_BICUBIC,
MODE_CATROM
};
cudaTextureObject_t texObjPoint, texObjLinear;
// w0, w1, w2, and w3 are the four cubic B-spline basis functions
__host__ __device__ float w0(float a) {
// return (1.0f/6.0f)*(-a*a*a + 3.0f*a*a - 3.0f*a + 1.0f);
return (1.0f / 6.0f) * (a * (a * (-a + 3.0f) - 3.0f) + 1.0f); // optimized
}
__host__ __device__ float w1(float a) {
// return (1.0f/6.0f)*(3.0f*a*a*a - 6.0f*a*a + 4.0f);
return (1.0f / 6.0f) * (a * a * (3.0f * a - 6.0f) + 4.0f);
}
__host__ __device__ float w2(float a) {
// return (1.0f/6.0f)*(-3.0f*a*a*a + 3.0f*a*a + 3.0f*a + 1.0f);
return (1.0f / 6.0f) * (a * (a * (-3.0f * a + 3.0f) + 3.0f) + 1.0f);
}
__host__ __device__ float w3(float a) { return (1.0f / 6.0f) * (a * a * a); }
// g0 and g1 are the two amplitude functions
__device__ float g0(float a) { return w0(a) + w1(a); }
__device__ float g1(float a) { return w2(a) + w3(a); }
// h0 and h1 are the two offset functions
__device__ float h0(float a) {
// note +0.5 offset to compensate for CUDA linear filtering convention
return -1.0f + w1(a) / (w0(a) + w1(a)) + 0.5f;
}
__device__ float h1(float a) { return 1.0f + w3(a) / (w2(a) + w3(a)) + 0.5f; }
// filter 4 values using cubic splines
template <class T>
__device__ T cubicFilter(float x, T c0, T c1, T c2, T c3) {
T r;
r = c0 * w0(x);
r += c1 * w1(x);
r += c2 * w2(x);
r += c3 * w3(x);
return r;
}
// slow but precise bicubic lookup using 16 texture lookups
template <class T, class R> // texture data type, return type
__device__ R tex2DBicubic(const cudaTextureObject_t tex, float x, float y) {
x -= 0.5f;
y -= 0.5f;
float px = floorf(x);
float py = floorf(y);
float fx = x - px;
float fy = y - py;
return cubicFilter<R>(
fy, cubicFilter<R>(
fx, tex2D<R>(tex, px - 1, py - 1), tex2D<R>(tex, px, py - 1),
tex2D<R>(tex, px + 1, py - 1), tex2D<R>(tex, px + 2, py - 1)),
cubicFilter<R>(fx, tex2D<R>(tex, px - 1, py), tex2D<R>(tex, px, py),
tex2D<R>(tex, px + 1, py), tex2D<R>(tex, px + 2, py)),
cubicFilter<R>(fx, tex2D<R>(tex, px - 1, py + 1),
tex2D<R>(tex, px, py + 1), tex2D<R>(tex, px + 1, py + 1),
tex2D<R>(tex, px + 2, py + 1)),
cubicFilter<R>(fx, tex2D<R>(tex, px - 1, py + 2),
tex2D<R>(tex, px, py + 2), tex2D<R>(tex, px + 1, py + 2),
tex2D<R>(tex, px + 2, py + 2)));
}
// fast bicubic texture lookup using 4 bilinear lookups
// assumes texture is set to non-normalized coordinates, point sampling
template <class T, class R> // texture data type, return type
__device__ R tex2DFastBicubic(const cudaTextureObject_t tex, float x, float y) {
x -= 0.5f;
y -= 0.5f;
float px = floorf(x);
float py = floorf(y);
float fx = x - px;
float fy = y - py;
// note: we could store these functions in a lookup table texture, but maths
// is cheap
float g0x = g0(fx);
float g1x = g1(fx);
float h0x = h0(fx);
float h1x = h1(fx);
float h0y = h0(fy);
float h1y = h1(fy);
R r = g0(fy) * (g0x * tex2D<R>(tex, px + h0x, py + h0y) +
g1x * tex2D<R>(tex, px + h1x, py + h0y)) +
g1(fy) * (g0x * tex2D<R>(tex, px + h0x, py + h1y) +
g1x * tex2D<R>(tex, px + h1x, py + h1y));
return r;
}
// higher-precision 2D bilinear lookup
template <class T, class R> // texture data type, return type
__device__ R tex2DBilinear(const cudaTextureObject_t tex, float x, float y) {
x -= 0.5f;
y -= 0.5f;
float px = floorf(x); // integer position
float py = floorf(y);
float fx = x - px; // fractional position
float fy = y - py;
px += 0.5f;
py += 0.5f;
return lerp(lerp(tex2D<R>(tex, px, py), tex2D<R>(tex, px + 1.0f, py), fx),
lerp(tex2D<R>(tex, px, py + 1.0f),
tex2D<R>(tex, px + 1.0f, py + 1.0f), fx),
fy);
}
#if !defined(__CUDA_ARCH__) || __CUDA_ARCH__ >= 200
/*
bilinear 2D texture lookup using tex2Dgather function
- tex2Dgather() returns the four neighbouring samples in a single texture
lookup
- it is only supported on the Fermi architecture
- you can select which component to fetch using the "comp" parameter
- it can be used to efficiently implement custom texture filters
The samples are returned in a 4-vector in the following order:
x: (0, 1)
y: (1, 1)
z: (1, 0)
w: (0, 0)
*/
template <class T, class R> // texture data type, return type
__device__ float tex2DBilinearGather(const cudaTextureObject_t tex, float x,
float y, int comp = 0) {
x -= 0.5f;
y -= 0.5f;
float px = floorf(x); // integer position
float py = floorf(y);
float fx = x - px; // fractional position
float fy = y - py;
R samples = tex2Dgather<R>(tex, px + 0.5f, py + 0.5f, comp);
return lerp(lerp((float)samples.w, (float)samples.z, fx),
lerp((float)samples.x, (float)samples.y, fx), fy);
}
#endif
// Catmull-Rom interpolation
__host__ __device__ float catrom_w0(float a) {
// return -0.5f*a + a*a - 0.5f*a*a*a;
return a * (-0.5f + a * (1.0f - 0.5f * a));
}
__host__ __device__ float catrom_w1(float a) {
// return 1.0f - 2.5f*a*a + 1.5f*a*a*a;
return 1.0f + a * a * (-2.5f + 1.5f * a);
}
__host__ __device__ float catrom_w2(float a) {
// return 0.5f*a + 2.0f*a*a - 1.5f*a*a*a;
return a * (0.5f + a * (2.0f - 1.5f * a));
}
__host__ __device__ float catrom_w3(float a) {
// return -0.5f*a*a + 0.5f*a*a*a;
return a * a * (-0.5f + 0.5f * a);
}
template <class T>
__device__ T catRomFilter(float x, T c0, T c1, T c2, T c3) {
T r;
r = c0 * catrom_w0(x);
r += c1 * catrom_w1(x);
r += c2 * catrom_w2(x);
r += c3 * catrom_w3(x);
return r;
}
// Note - can't use bilinear trick here because of negative lobes
template <class T, class R> // texture data type, return type
__device__ R tex2DCatRom(const cudaTextureObject_t tex, float x, float y) {
x -= 0.5f;
y -= 0.5f;
float px = floorf(x);
float py = floorf(y);
float fx = x - px;
float fy = y - py;
return catRomFilter<R>(
fy, catRomFilter<R>(
fx, tex2D<R>(tex, px - 1, py - 1), tex2D<R>(tex, px, py - 1),
tex2D<R>(tex, px + 1, py - 1), tex2D<R>(tex, px + 2, py - 1)),
catRomFilter<R>(fx, tex2D<R>(tex, px - 1, py), tex2D<R>(tex, px, py),
tex2D<R>(tex, px + 1, py), tex2D<R>(tex, px + 2, py)),
catRomFilter<R>(fx, tex2D<R>(tex, px - 1, py + 1),
tex2D<R>(tex, px, py + 1), tex2D<R>(tex, px + 1, py + 1),
tex2D<R>(tex, px + 2, py + 1)),
catRomFilter<R>(fx, tex2D<R>(tex, px - 1, py + 2),
tex2D<R>(tex, px, py + 2), tex2D<R>(tex, px + 1, py + 2),
tex2D<R>(tex, px + 2, py + 2)));
}
// test functions
// render image using normal bilinear texture lookup
__global__ void d_render(uchar4 *d_output, uint width, uint height, float tx,
float ty, float scale, float cx, float cy,
cudaTextureObject_t texObj) {
uint x = __umul24(blockIdx.x, blockDim.x) + threadIdx.x;
uint y = __umul24(blockIdx.y, blockDim.y) + threadIdx.y;
uint i = __umul24(y, width) + x;
float u = (x - cx) * scale + cx + tx;
float v = (y - cy) * scale + cy + ty;
if ((x < width) && (y < height)) {
// write output color
float c = tex2D<float>(texObj, u, v);
// float c = tex2DBilinear<uchar, float>(tex, u, v);
// float c = tex2DBilinearGather<uchar, uchar4>(tex2, u, v, 0) / 255.0f;
d_output[i] = make_uchar4(c * 0xff, c * 0xff, c * 0xff, 0);
}
}
// render image using bicubic texture lookup
__global__ void d_renderBicubic(uchar4 *d_output, uint width, uint height,
float tx, float ty, float scale, float cx,
float cy, cudaTextureObject_t texObj) {
uint x = __umul24(blockIdx.x, blockDim.x) + threadIdx.x;
uint y = __umul24(blockIdx.y, blockDim.y) + threadIdx.y;
uint i = __umul24(y, width) + x;
float u = (x - cx) * scale + cx + tx;
float v = (y - cy) * scale + cy + ty;
if ((x < width) && (y < height)) {
// write output color
float c = tex2DBicubic<uchar, float>(texObj, u, v);
d_output[i] = make_uchar4(c * 0xff, c * 0xff, c * 0xff, 0);
}
}
// render image using fast bicubic texture lookup
__global__ void d_renderFastBicubic(uchar4 *d_output, uint width, uint height,
float tx, float ty, float scale, float cx,
float cy, cudaTextureObject_t texObj) {
uint x = __umul24(blockIdx.x, blockDim.x) + threadIdx.x;
uint y = __umul24(blockIdx.y, blockDim.y) + threadIdx.y;
uint i = __umul24(y, width) + x;
float u = (x - cx) * scale + cx + tx;
float v = (y - cy) * scale + cy + ty;
if ((x < width) && (y < height)) {
// write output color
float c = tex2DFastBicubic<uchar, float>(texObj, u, v);
d_output[i] = make_uchar4(c * 0xff, c * 0xff, c * 0xff, 0);
}
}
// render image using Catmull-Rom texture lookup
__global__ void d_renderCatRom(uchar4 *d_output, uint width, uint height,
float tx, float ty, float scale, float cx,
float cy, cudaTextureObject_t texObj) {
uint x = __umul24(blockIdx.x, blockDim.x) + threadIdx.x;
uint y = __umul24(blockIdx.y, blockDim.y) + threadIdx.y;
uint i = __umul24(y, width) + x;
float u = (x - cx) * scale + cx + tx;
float v = (y - cy) * scale + cy + ty;
if ((x < width) && (y < height)) {
// write output color
float c = tex2DCatRom<uchar, float>(texObj, u, v);
d_output[i] = make_uchar4(c * 0xff, c * 0xff, c * 0xff, 0);
}
}
#endif // _BICUBICTEXTURE_KERNEL_CUH_

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<PropertyGroup Condition="'$(Configuration)'=='Debug'">
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################################################################################
# Copyright (c) 2022, 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.
#
################################################################################
#
# findgllib.mk is used to find the necessary GL Libraries for specific distributions
# this is supported on Mac OSX and Linux Platforms
#
################################################################################
# Determine OS platform and unix distribution
ifeq ("$(TARGET_OS)","linux")
# first search lsb_release
DISTRO := $(shell lsb_release -i -s 2>/dev/null | tr "[:upper:]" "[:lower:]")
ifeq ("$(DISTRO)","")
# second search and parse /etc/issue
DISTRO := $(shell awk '{print $$1}' /etc/issue | tr -d "[:space:]" | sed -e "/^$$/d" | tr "[:upper:]" "[:lower:]")
# ensure data from /etc/issue is valid
ifeq (,$(filter $(DISTRO),ubuntu fedora red rhel centos suse))
DISTRO :=
endif
ifeq ("$(DISTRO)","")
# third, we can search in /etc/os-release or /etc/{distro}-release
DISTRO := $(shell awk '/ID/' /etc/*-release | sed 's/ID=//' | grep -v "VERSION" | grep -v "ID" | grep -v "DISTRIB")
endif
endif
endif
ifeq ("$(TARGET_OS)","linux")
# $(info) >> findgllib.mk -> LINUX path <<<)
# Each set of Linux Distros have different paths for where to find their OpenGL libraries reside
UBUNTU = $(shell echo $(DISTRO) | grep -i ubuntu >/dev/null 2>&1; echo $$?)
FEDORA = $(shell echo $(DISTRO) | grep -i fedora >/dev/null 2>&1; echo $$?)
RHEL = $(shell echo $(DISTRO) | grep -i 'red\|rhel' >/dev/null 2>&1; echo $$?)
CENTOS = $(shell echo $(DISTRO) | grep -i centos >/dev/null 2>&1; echo $$?)
SUSE = $(shell echo $(DISTRO) | grep -i 'suse\|sles' >/dev/null 2>&1; echo $$?)
ifeq ("$(UBUNTU)","0")
ifeq ($(HOST_ARCH)-$(TARGET_ARCH),x86_64-armv7l)
GLPATH := /usr/arm-linux-gnueabihf/lib
GLLINK := -L/usr/arm-linux-gnueabihf/lib
ifneq ($(TARGET_FS),)
GLPATH += $(TARGET_FS)/usr/lib/arm-linux-gnueabihf
GLLINK += -L$(TARGET_FS)/usr/lib/arm-linux-gnueabihf
endif
else ifeq ($(HOST_ARCH)-$(TARGET_ARCH),x86_64-aarch64)
GLPATH := /usr/aarch64-linux-gnu/lib
GLLINK := -L/usr/aarch64-linux-gnu/lib
ifneq ($(TARGET_FS),)
GLPATH += $(TARGET_FS)/usr/lib
GLPATH += $(TARGET_FS)/usr/lib/aarch64-linux-gnu
GLLINK += -L$(TARGET_FS)/usr/lib/aarch64-linux-gnu
endif
else ifeq ($(HOST_ARCH)-$(TARGET_ARCH),x86_64-ppc64le)
GLPATH := /usr/powerpc64le-linux-gnu/lib
GLLINK := -L/usr/powerpc64le-linux-gnu/lib
else
UBUNTU_PKG_NAME = $(shell which dpkg >/dev/null 2>&1 && dpkg -l 'nvidia-*' | grep '^ii' | awk '{print $$2}' | head -1)
ifneq ("$(UBUNTU_PKG_NAME)","")
GLPATH ?= /usr/lib/$(UBUNTU_PKG_NAME)
GLLINK ?= -L/usr/lib/$(UBUNTU_PKG_NAME)
endif
DFLT_PATH ?= /usr/lib
endif
endif
ifeq ("$(SUSE)","0")
GLPATH ?= /usr/X11R6/lib64
GLLINK ?= -L/usr/X11R6/lib64
DFLT_PATH ?= /usr/lib64
endif
ifeq ("$(FEDORA)","0")
GLPATH ?= /usr/lib64/nvidia
GLLINK ?= -L/usr/lib64/nvidia
DFLT_PATH ?= /usr/lib64
endif
ifeq ("$(RHEL)","0")
GLPATH ?= /usr/lib64/nvidia
GLLINK ?= -L/usr/lib64/nvidia
DFLT_PATH ?= /usr/lib64
endif
ifeq ("$(CENTOS)","0")
GLPATH ?= /usr/lib64/nvidia
GLLINK ?= -L/usr/lib64/nvidia
DFLT_PATH ?= /usr/lib64
endif
# find libGL, libGLU
GLLIB := $(shell find -L $(GLPATH) $(DFLT_PATH) -name libGL.so -print 2>/dev/null)
GLULIB := $(shell find -L $(GLPATH) $(DFLT_PATH) -name libGLU.so -print 2>/dev/null)
ifeq ("$(GLLIB)","")
$(info >>> WARNING - libGL.so not found, refer to CUDA Getting Started Guide for how to find and install them. <<<)
SAMPLE_ENABLED := 0
endif
ifeq ("$(GLULIB)","")
$(info >>> WARNING - libGLU.so not found, refer to CUDA Getting Started Guide for how to find and install them. <<<)
SAMPLE_ENABLED := 0
endif
HEADER_SEARCH_PATH ?= $(TARGET_FS)/usr/include
ifeq ($(HOST_ARCH)-$(TARGET_ARCH)-$(TARGET_OS),x86_64-armv7l-linux)
HEADER_SEARCH_PATH += /usr/arm-linux-gnueabihf/include
else ifeq ($(HOST_ARCH)-$(TARGET_ARCH)-$(TARGET_OS),x86_64-aarch64-linux)
HEADER_SEARCH_PATH += /usr/aarch64-linux-gnu/include
endif
GLHEADER := $(shell find -L $(HEADER_SEARCH_PATH) -name gl.h -print 2>/dev/null)
GLUHEADER := $(shell find -L $(HEADER_SEARCH_PATH) -name glu.h -print 2>/dev/null)
ifeq ("$(GLHEADER)","")
$(info >>> WARNING - gl.h not found, refer to CUDA Getting Started Guide for how to find and install them. <<<)
SAMPLE_ENABLED := 0
endif
ifeq ("$(GLUHEADER)","")
$(info >>> WARNING - glu.h not found, refer to CUDA Getting Started Guide for how to find and install them. <<<)
SAMPLE_ENABLED := 0
endif
else
# This would be the Mac OS X path if we had to do anything special
endif