Android 端无法启用 GPU 模式 about anime4kcpp

[TianZerL]

release编译使用的so库就是我发的，但是头文件应该是不一样的，release的opencl部分代码是纯C的，而Anime4KCPP_Android则用了OpenCL官方的cpp封装库。

还是so库的兼容性问题，sdk的so库我换过，然后忘记了😓。
release的so库应该是zuk z2里扒下来的，我发的sdk的so库是从一款联想的855手机里扒下来的。我用release的代码链接现在的so库一样一堆问题。

但是不知道是不是因为z2的so库版本太老（骁龙820），在855上测试GPU跑OpenCL性能比使用Eigen3的CPU慢得多（也可能是手机的GPU带宽瓶颈）。

zukz2libOpenCL_arm64-v8a.zip（不是很确定这个so库到底是不是arm64的，AS会提示不兼容但是又可以链接上并正常工作）
EDIT：非常离谱且无语，我发现现在用AS的bug在编译链接上armv7的OpenCL库就可以工作，具体就是先用arm64的库编译一遍然后然后替换so库再点编译就能链接上armv7的库，而且一切正常？？？估计那个z2的so库也是armv7的，怀疑是安卓版本或者编译目标SDK版本的问题。

[liguobing]

感谢您的回复，这几天我试了各种操作，都不行，各种出错，头发都快薅秃了。

我按照您的操作试了一下，好像还是不行，您看下是不是我的理解有问题

我的操作步骤如下：

还是使用 opencl.zip 中的 so 库和头文件

1.修改 build.gradle，将 include 'arm64-v8a','armeabi-v7a' 中的 'armeabi-v7a' 删除，这样只保留了编译 arm64
2.在 AndroidStudio 中 rebuild
这里 rebuild 成功
3.替换 lib 中 'arm64-v8a' 目录下的 libOpenCL.so 为 'armeabi-v7a' 下的 so 文件
4.rebuild
这里 rebuild 不成功，报错如下

clang++: warning: argument unused during compilation: '-static-openmp' [-Wunused-command-line-argument]
[2/19] Building CXX object CMakeFiles/Anime4KCPPCore.dir/Anime4KCore/src/ACCuda.cpp.o
clang++: warning: argument unused during compilation: '-static-openmp' [-Wunused-command-line-argument]
[3/19] Building CXX object CMakeFiles/Anime4KCPPCore.dir/Anime4KCore/src/CPUAnime4K09.cpp.o
clang++: warning: argument unused during compilation: '-static-openmp' [-Wunused-command-line-argument]
[4/19] Building CXX object CMakeFiles/Anime4KCPPCore.dir/Anime4KCore/src/ACNCNN.cpp.o
clang++: warning: argument unused during compilation: '-static-openmp' [-Wunused-command-line-argument]
[5/19] Building CXX object CMakeFiles/Anime4KCPPCore.dir/Anime4KCore/src/CPUCNNProcessor.cpp.o
clang++: warning: argument unused during compilation: '-static-openmp' [-Wunused-command-line-argument]
[6/19] Building CXX object CMakeFiles/Anime4KCPPCore.dir/Anime4KCore/src/ACCreator.cpp.o
clang++: warning: argument unused during compilation: '-static-openmp' [-Wunused-command-line-argument]
[7/19] Building CXX object CMakeFiles/Anime4KCPPCore.dir/Anime4KCPPWrapper.cpp.o
clang++: warning: argument unused during compilation: '-static-openmp' [-Wunused-command-line-argument]
[8/19] Building CXX object CMakeFiles/Anime4KCPPCore.dir/Anime4KCore/src/CPUACNet.cpp.o
clang++: warning: argument unused during compilation: '-static-openmp' [-Wunused-command-line-argument]
[9/19] Building CXX object CMakeFiles/Anime4KCPPCore.dir/Anime4KCore/src/AC.cpp.o
clang++: warning: argument unused during compilation: '-static-openmp' [-Wunused-command-line-argument]
[10/19] Building CXX object CMakeFiles/Anime4KCPPCore.dir/Anime4KCore/src/CPUACNetProcessor.cpp.o
clang++: warning: argument unused during compilation: '-static-openmp' [-Wunused-command-line-argument]
[11/19] Building CXX object CMakeFiles/Anime4KCPPCore.dir/Anime4KCore/src/CudaAnime4K09.cpp.o
clang++: warning: argument unused during compilation: '-static-openmp' [-Wunused-command-line-argument]
[12/19] Building CXX object CMakeFiles/Anime4KCPPCore.dir/Anime4KCore/src/NCNNACNet.cpp.o
clang++: warning: argument unused during compilation: '-static-openmp' [-Wunused-command-line-argument]
[13/19] Building CXX object CMakeFiles/Anime4KCPPCore.dir/Anime4KCore/src/OpenCLACNet.cpp.o
clang++: warning: argument unused during compilation: '-static-openmp' [-Wunused-command-line-argument]
[14/19] Building CXX object CMakeFiles/Anime4KCPPCore.dir/Anime4KCore/src/CudaACNet.cpp.o
clang++: warning: argument unused during compilation: '-static-openmp' [-Wunused-command-line-argument]
[15/19] Building CXX object CMakeFiles/Anime4KCPPCore.dir/Anime4KCore/src/FilterProcessor.cpp.o
clang++: warning: argument unused during compilation: '-static-openmp' [-Wunused-command-line-argument]
[16/19] Building CXX object CMakeFiles/Anime4KCPPCore.dir/Anime4KCore/src/VideoProcessor.cpp.o
clang++: warning: argument unused during compilation: '-static-openmp' [-Wunused-command-line-argument]
[17/19] Building CXX object CMakeFiles/Anime4KCPPCore.dir/Anime4KCore/src/OpenCLAnime4K09.cpp.o
clang++: warning: argument unused during compilation: '-static-openmp' [-Wunused-command-line-argument]
[18/19] Building CXX object CMakeFiles/Anime4KCPPCore.dir/Anime4KCore/src/VideoIO.cpp.o
clang++: warning: argument unused during compilation: '-static-openmp' [-Wunused-command-line-argument]
[19/19] Linking CXX shared library E:\Work_Space\Anime4KCPP_Android\app\build\intermediates\cxx\Debug\5av2r2w1\obj\arm64-v8a\libAnime4KCPPCore.so
FAILED: E:/Work_Space/Anime4KCPP_Android/app/build/intermediates/cxx/Debug/5av2r2w1/obj/arm64-v8a/libAnime4KCPPCore.so 

cmd.exe /C "cd . && D:\AndroidSDK\ndk\21.3.6528147\toolchains\llvm\prebuilt\windows-x86_64\bin\clang++.exe --target=aarch64-none-linux-android24 --gcc-toolchain=D:/AndroidSDK/ndk/21.3.6528147/toolchains/llvm/prebuilt/windows-x86_64 --sysroot=D:/AndroidSDK/ndk/21.3.6528147/toolchains/llvm/prebuilt/windows-x86_64/sysroot -fPIC -g -DANDROID -fdata-sections -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -D_FORTIFY_SOURCE=2 -Wformat -Werror=format-security  -std=c++17 -frtti -fexceptions -O3 -static-openmp -fopenmp -O0 -fno-limit-debug-info  -Wl,--exclude-libs,libgcc.a -Wl,--exclude-libs,libgcc_real.a -Wl,--exclude-libs,libatomic.a -Wl,--build-id -Wl,--fatal-warnings -Wl,--no-undefined -Qunused-arguments -shared -Wl,-soname,libAnime4KCPPCore.so -o E:\Work_Space\Anime4KCPP_Android\app\build\intermediates\cxx\Debug\5av2r2w1\obj\arm64-v8a\libAnime4KCPPCore.so @CMakeFiles\Anime4KCPPCore.rsp  && cd ."

clang++: error: linker command failed with exit code 1 (use -v to see invocation)

Execution failed for task ':app:buildCMakeDebug[arm64-v8a]'.
> com.android.ide.common.process.ProcessException: ninja: Entering directory `E:\Work_Space\Anime4KCPP_Android\app\.cxx\Debug\5av2r2w1\arm64-v8a'
  [1/19] Building CXX object CMakeFiles/Anime4KCPPCore.dir/Anime4KCore/src/ACOpenCL.cpp.o
  clang++: warning: argument unused during compilation: '-static-openmp' [-Wunused-command-line-argument]
  [2/19] Building CXX object CMakeFiles/Anime4KCPPCore.dir/Anime4KCore/src/ACCuda.cpp.o
  clang++: warning: argument unused during compilation: '-static-openmp' [-Wunused-command-line-argument]
  [3/19] Building CXX object CMakeFiles/Anime4KCPPCore.dir/Anime4KCore/src/CPUAnime4K09.cpp.o
  clang++: warning: argument unused during compilation: '-static-openmp' [-Wunused-command-line-argument]
  [4/19] Building CXX object CMakeFiles/Anime4KCPPCore.dir/Anime4KCore/src/ACNCNN.cpp.o
  clang++: warning: argument unused during compilation: '-static-openmp' [-Wunused-command-line-argument]
  [5/19] Building CXX object CMakeFiles/Anime4KCPPCore.dir/Anime4KCore/src/CPUCNNProcessor.cpp.o
  clang++: warning: argument unused during compilation: '-static-openmp' [-Wunused-command-line-argument]
  [6/19] Building CXX object CMakeFiles/Anime4KCPPCore.dir/Anime4KCore/src/ACCreator.cpp.o
  clang++: warning: argument unused during compilation: '-static-openmp' [-Wunused-command-line-argument]
  [7/19] Building CXX object CMakeFiles/Anime4KCPPCore.dir/Anime4KCPPWrapper.cpp.o
  clang++: warning: argument unused during compilation: '-static-openmp' [-Wunused-command-line-argument]
  [8/19] Building CXX object CMakeFiles/Anime4KCPPCore.dir/Anime4KCore/src/CPUACNet.cpp.o
  clang++: warning: argument unused during compilation: '-static-openmp' [-Wunused-command-line-argument]
  [9/19] Building CXX object CMakeFiles/Anime4KCPPCore.dir/Anime4KCore/src/AC.cpp.o
  clang++: warning: argument unused during compilation: '-static-openmp' [-Wunused-command-line-argument]
  [10/19] Building CXX object CMakeFiles/Anime4KCPPCore.dir/Anime4KCore/src/CPUACNetProcessor.cpp.o
  clang++: warning: argument unused during compilation: '-static-openmp' [-Wunused-command-line-argument]
  [11/19] Building CXX object CMakeFiles/Anime4KCPPCore.dir/Anime4KCore/src/CudaAnime4K09.cpp.o
  clang++: warning: argument unused during compilation: '-static-openmp' [-Wunused-command-line-argument]
  [12/19] Building CXX object CMakeFiles/Anime4KCPPCore.dir/Anime4KCore/src/NCNNACNet.cpp.o
  clang++: warning: argument unused during compilation: '-static-openmp' [-Wunused-command-line-argument]
  [13/19] Building CXX object CMakeFiles/Anime4KCPPCore.dir/Anime4KCore/src/OpenCLACNet.cpp.o
  clang++: warning: argument unused during compilation: '-static-openmp' [-Wunused-command-line-argument]
  [14/19] Building CXX object CMakeFiles/Anime4KCPPCore.dir/Anime4KCore/src/CudaACNet.cpp.o
  clang++: warning: argument unused during compilation: '-static-openmp' [-Wunused-command-line-argument]
  [15/19] Building CXX object CMakeFiles/Anime4KCPPCore.dir/Anime4KCore/src/FilterProcessor.cpp.o
  clang++: warning: argument unused during compilation: '-static-openmp' [-Wunused-command-line-argument]
  [16/19] Building CXX object CMakeFiles/Anime4KCPPCore.dir/Anime4KCore/src/VideoProcessor.cpp.o
  clang++: warning: argument unused during compilation: '-static-openmp' [-Wunused-command-line-argument]
  [17/19] Building CXX object CMakeFiles/Anime4KCPPCore.dir/Anime4KCore/src/OpenCLAnime4K09.cpp.o
  clang++: warning: argument unused during compilation: '-static-openmp' [-Wunused-command-line-argument]
  [18/19] Building CXX object CMakeFiles/Anime4KCPPCore.dir/Anime4KCore/src/VideoIO.cpp.o
  clang++: warning: argument unused during compilation: '-static-openmp' [-Wunused-command-line-argument]
  [19/19] Linking CXX shared library E:\Work_Space\Anime4KCPP_Android\app\build\intermediates\cxx\Debug\5av2r2w1\obj\arm64-v8a\libAnime4KCPPCore.so
  FAILED: E:/Work_Space/Anime4KCPP_Android/app/build/intermediates/cxx/Debug/5av2r2w1/obj/arm64-v8a/libAnime4KCPPCore.so 
  cmd.exe /C "cd . && D:\AndroidSDK\ndk\21.3.6528147\toolchains\llvm\prebuilt\windows-x86_64\bin\clang++.exe --target=aarch64-none-linux-android24 --gcc-toolchain=D:/AndroidSDK/ndk/21.3.6528147/toolchains/llvm/prebuilt/windows-x86_64 --sysroot=D:/AndroidSDK/ndk/21.3.6528147/toolchains/llvm/prebuilt/windows-x86_64/sysroot -fPIC -g -DANDROID -fdata-sections -ffunction-sections -funwind-tables -fstack-protector-strong -no-canonical-prefixes -D_FORTIFY_SOURCE=2 -Wformat -Werror=format-security  -std=c++17 -frtti -fexceptions -O3 -static-openmp -fopenmp -O0 -fno-limit-debug-info  -Wl,--exclude-libs,libgcc.a -Wl,--exclude-libs,libgcc_real.a -Wl,--exclude-libs,libatomic.a -Wl,--build-id -Wl,--fatal-warnings -Wl,--no-undefined -Qunused-arguments -shared -Wl,-soname,libAnime4KCPPCore.so -o E:\Work_Space\Anime4KCPP_Android\app\build\intermediates\cxx\Debug\5av2r2w1\obj\arm64-v8a\libAnime4KCPPCore.so @CMakeFiles\Anime4KCPPCore.rsp  && cd ."
  E:/Libs/Android/OpenCL/lib/arm64-v8a/libOpenCL.so: error adding symbols: File in wrong format
  clang++: error: linker command failed with exit code 1 (use -v to see invocation)
  ninja: build stopped: subcommand failed.

[TianZerL]

我的操作是这样的，没有修改配置文件，而是插上手机开启usb调试，然后直接点run，此时应该会编译并在手机上运行，这个时候点all stop，然后去换掉so库，再点run，会发现此时依然可以run成功。但是过一段时间再run又会提示so库不兼容。就很离谱。

如果还不成功的话，不妨直接替换编译出的apk的lib文件夹里打包的so库试一下。

然后可以尝试降低sdk版本到30，以前是没有这个奇怪的问题的，opencl相关代码也没有什么修改。我看谷歌在sdk31加入了对load native库的限制。

我按你的方法试了一下，也可以编译成功。先删除armv7然后点make，此时成功，然后替换so库再make依然成功。

[liguobing]

我不知道该怎么形容了，替换之后成功开启了 GPU
啥也不说了，我给你磕一个吧