C For Media Installation Guide

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C-For-Media Color Copy Pipeline
Installation Guide
March 2019
CM Color Copy Pipeline
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Contents
1.0 Installation Guide ................................................................................................................................ 5
1.1 Download C for Media Package ......................................................................................................... 5
1.2 Yocto/Ubuntu ................................................................................................................................................. 5
1.2.1 Update CMake ............................................................................................................................. 5
1.2.2 Install libva ................................................................................................................................... 6
1.2.3 Install GMMLib ............................................................................................................................ 6
1.2.4 Install Media Driver ................................................................................................................. 7
1.2.5 Install Intel Graphic Compiler (IGC) ........................................................................... 7
1.2.6 Environment setting for Yocto ......................................................................................... 7
1.2.7 Environment setting for Ubuntu ..................................................................................... 8
1.3 Installing gflags library ............................................................................................................................ 8
1.4 C for Media Samples and Documents ........................................................................................... 8
1.4.1 C for Media Documents ........................................................................................................ 8
1.5 Color Copy Pipeline Samples ............................................................................................................... 9
1.5.1 Download Copy Pipeline Samples ................................................................................. 9
1.5.2 Build Copy Pipeline Samples ............................................................................................. 9
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Revision History
Date
Revision
Description
March 2019
0.5
Initial release.
§
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1.0 Installation Guide
The Intel® C for Media development package is a software development package for
Intel® Graphics Technology. It includes the Intel® C for Media Compiler, the Intel® C
for Media Runtime, Intel® Media Driver for VAAPI, and reference examples, which can
be used to develop applications accelerated by Intel® Graphics Media Accelerator. A
typical application contains two kinds of source code, kernel and host. The kernel is
written in Intel® C for Media language, compiled to GPU ISA binary by the Intel® C for
Media Compiler, and executed on the GPU. Host manages workloads through the
Intel® C for Media Runtime and user mode media driver.
Official website for C for Media
https://01.org/c-for-media-development-package
Current, the downloadable package officially supports Ubuntu 16.04 and above. For
non-supported distros, Intel has released source code for all required components to
build the C for Media development package.
1.1 Download C for Media Package
The latest version of the C for Media package is 20190221
https://01.org/sites/default/files/downloads//linuxcformediadevelopmentpackage201
90221.zip
1) Download and unzip to a folder and will use C_for_Media for as folder name for
subsequent instruction.
1.2 Yocto/Ubuntu
This section provides installation guide to build GMMLib and Intel Media Driver from
sources and install Intel Graphic Compiler included in C for Media package.
To ensure consistent the source code use to generate 20190221 package, all the
sources checkout from the various repositories are using the hashes match with the
package.
Install and update all the packages as follow.
1.2.1 Update CMake
APL Yocto recipe is using older CMake. Some of the C for Media components require
newer version of CMake like 3.5.1. As a result, a newer CMake is required. Skip this
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step for Ubuntu 16.04 if CMake version is >= 3.5.1
1) git clone https://github.com/Kitware/CMake.git
2) cd CMake
3) ./configure
4) make -j4
5) sudo make install
1.2.2 Install libva
1) Extra libraries are need if the Linux system doesn’t have it
a. libtool -> sudo apt-get install libtool
b. libpciaccess -> https://01.org/linuxgraphics/downloads/2018q1-intel-
graphics-stack-recipe
c. libdrm -> https://01.org/linuxgraphics/downloads/2018q1-intel-
graphics-stack-recipe
2) git clone https://github.com/intel/libva.git
3) cd libva
4) git checkout 25b330768
5) ./autogen.sh
6) make –j4
7) sudo make install
1.2.3 Install GMMLib
1) git clone https://github.com/intel/gmmlib.git
2) cd gmmlib
3) git checkout 8bee050d28
4) apply this patch by
git am 0001-Temporary-workaround-performance-issue-in-APL.patch
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5) mkdir build
6) cd build
7) cmake –DCMAKE_INSTALL_PREFIX=/usr/local ../
8) make –j4
9) sudo make install
1.2.4 Install Media Driver
1) git clone https://github.com/intel/media-driver.git
2) cd media-driver
3) git checkout 8f9771eb577
4) mkdir build
5) cd build
6) cmake –DCMAKE_INSTALL_PREFIX=/usr/local ../
7) make –j4
8) sudo make install
1.2.5 Install Intel Graphic Compiler (IGC)
The IGC can be directly reuse from the downloaded C for Media package. Go to the
unzip C for Media folder and extract the IGC.
1) cd C_for_Media
2) cd drivers/IGC
3) ar x IGC-20190221Linux.deb
4) tar –vxf data.tar.xz
5) cp usr/lib/libig* /usr/local/lib
1.2.6 Environment setting for Yocto
Before running C for media samples, export several environment variables
1) export LIBVA_DRIVER_NAME=iHD
2) export LIBVA_DRIVERS_PATH=/usr/lib /dri
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3) export LD_LIBRARY_PATH=/usr/local/lib:$LD_LIBRARY_PATH
1.2.7 Environment setting for Ubuntu
1) export LIBVA_DRIVER_NAME=iHD
4) export LIBVA_DRIVERS_PATH=/usr/lib/x86_64-linux-gnu/dri
1.3 Install gflags library
1) Ubuntu 16.04
a. sudo apt-get install libgflags-dev
2) Yocto
a. git clone https://github.com/gflags/gflags.git
b. cd gflags
c. mkdir build; cd build
d. cmake .. -DBUILD_SHARED_LIBS=ON -DBUILD_STATIC_LIBS=ON -
DBUILD_gflags_LIB=ON -DCMAKE_INSTALL_PREFIX=/usr
e. make -j8
f. sudo make install
1.4 C for Media Samples and Documents
C for Media samples are stored in the C_for_Media/examples folder. The package
provides a run_all.sh script which will run all the samples and can use to verify all the
required components are install correctly.
1.4.1 C for Media Documents
1) More details of the samples are documented in this folder.
C_for_Media/documents/compiler/html/cmtutorial/cmtut.html
2) C for Media Language specification located in
C_for_Media/documents/compiler/html/cmlangspec/cmlangspec.html
3) C for Media Runtime API located in
C_for_Media/documents/cmrtlib/html/index.html
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1.5 Color Copy Pipeline Samples
Color Copy Pipeline Sample implements the graph from RGB to CMYK similar to
OpenVX version in https://software.intel.com/en-us/sample-color-copy-color-copy-
pipeline-the-rgb-to-cmyk-openvx-graph.
There are some differences between both versions
1) OpenVX version utilizes heterogeneous system and distributes kernels to CPU,
GPGPU and IPU.
2) C for Media version only computes the full graph in GPGPU.
3) OpenVX version supports both halftone and error diffusion, while C for Media
version only supports halftone.
4) OpenVX version supports various configurations like High1, High3 and High6
while C for Media version only supports High6.
5) As C for Media kernels don’t need to share buffer among various compute
units, all intermediate surfaces are 2D surface, while OpenVX use linear buffers
for all intermediate surfaces.
1.5.1 Download Copy Pipeline Samples
Color copy pipeline sample doesn’t distribute from C for Media package, but resides in
C for Media compiler GitHub.
To download
1) git clone https://github.com/intel/cm-compiler.git
2) The path for the sample is cm-
compiler/test/external_contribution/CopyPipelineHigh6/
1.5.2 Build Copy Pipeline Samples
1) Copy color copy pipeline into C for Media package
cp -r cm-compiler/test/external_contribution/CopyPipelineHigh6/
C_for_Media/examples
2) Edit Makefile.linux in CopyPipelineHigh6. Comment the first CM_ROOT and
uncomment the second CM_ROOT, and the output as below.
#CM_ROOT :=
/home/gangche1/Downloads/linuxcformediadevelopmentpackage20180202
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#CMC := ../../../build.64.linux/bin/cmc
CM_ROOT := ../..
3) In the same Makefile.linux, replace igfxcmrt64.so to libigfxcmrt.so, and output
as below.
(HW_X64_APP): $(HW_X64_APP_OBJS)
$(CXX) $^ $(HW_LDFLAGS) -rdynamic
$(CM_ROOT)/runtime/lib/x64/libigfxcmrt.so -o $@
4) Compile using the Makefile.linux in CopyPipelineHigh6
make –f Makefile.linux
5) To run, make sure the environment has set correctly either describe in section
1.2.6 or 1.3.1.
./hw_x64.CopyPipelineHigh6 nest.bmp

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