Minify OpenCL source files.
oclminify is an OpenCL™ source minifier. It takes OpenCL source code and makes it as small as possible by stripping comments, removing unnecessary space, renaming symbols, rewriting vector indices, etc. The minified source can be optionally compressed and then saved as is or as a C header. The latter makes it very easy to embed into a compiled application. The original source and the minified source are functionally identical and should compile into the exact same byte code.
If you’re targeting platforms with OpenCL 2.0 or later support, you should consider using SPIR™ instead.
oclminify was originally developed by the Phoduit team.
>From the command line:
pip install oclminify
If you want oclminify to support a compile check before minification, with an actual OpenCL driver, install pyopencl with:
pip install pyopencl
oclminify [-h] [--preprocessor-command PREPROCESSOR_COMMAND] [--preprocessor-no-stdin] [--no-preprocess] [--no-minify] [--compress] [--strip-zlib-header] [--header] [--header-function-args] [--minify-kernel-names] [--global-postfix GLOBAL_POSTFIX] [--try-build] [--output-file OUTPUT_FILE] input
oclminify takes a single input file. If the input file is - (a single hyphen), input will be read from STDIN. If the –output-file option is omitted, the output is written to STDOUT.
The available options are:
-h, --help show this help message and exit --preprocessor-command PREPROCESSOR_COMMAND Command to preprocess input source before minification. Defaults to "gcc -E -undef -P -std=c99 -" --preprocessor-no-stdin Pass input to preprocessor using a temporary file instead of stdin. --no-preprocess Skip preprocessing step. Implies --no-minify. --no-minify Skip minification step. Useful when debugging. --compress Compress output using zlib. --strip-zlib-header Strips the two byte zlib header from the compressed output when --compress is used. --header Embed output in a C header file. --header-function-args Include function argument mappings in C header file. --minify-kernel-names Replace kernel function names with shorter names. --global-postfix GLOBAL_POSTFIX Postfix appended to each symbol name in the global scope. Used for preventing name collisions when minifying multiple source files separately. Implies --minify-kernel-names. --try-build Try to build the input using an OpenCL compiler before minifying. The compiled output is discarded. Requires pyopencl. --output-file OUTPUT_FILE File path where output should be saved. Omit to write to stdout.
To simply minify an OpenCL source file and write the result to file, run:
oclminify --output-file output.minified.cl input.cl
The examples directory contains more examples:
- examples/minimal — shows how to create a minimal project that minifies an OpenCL source file and builds a C based project using a shell script.
- examples/cmake — shows how to integrate oclminify with a CMake based C++ project.
- examples/compress — shows how to use oclminify in a CMake project to compress an OpenCL source file at compile time and then decompress it at run time.
- OpenCL is a trademark of Apple Inc., under license by Khronos.
- SPIR is a trademark of the Khronos Group Inc.
- Python is a registered trademark of the Python Software Foundation.
- Copyright (c) 2016 StarByte Software, Inc. All rights reserved.
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