[build] Fix building for other than x86 target

CMakeLists.txt

@@ -61,9 +61,6 @@ if(MSVC)
   add_definitions(-DWIN32_LEAN_AND_MEAN -D_WIN32 -DWIN32 -DWIN64)
 endif()
 
-# ToDo: allow compiling on other than x86
-add_definitions(-DCOMPILE_INTEL)
-
 if(BUILD_SHARED_LIBS)
   list( APPEND CMAKE_INSTALL_RPATH "${CMAKE_INSTALL_PREFIX}/lib" "./" "../lib" )  
   set(CMAKE_INSTALL_RPATH_USE_LINK_PATH TRUE)
@@ -101,7 +98,10 @@ if(MSVC)
   target_include_directories(uvg266 PUBLIC src/threadwrapper/include)
   set_property( SOURCE ${LIB_SOURCES_STRATEGIES_AVX2} APPEND PROPERTY COMPILE_FLAGS "/arch:AVX2" )
 else()
+  list(APPEND ALLOW_AVX2 "x86_64" "AMD64")
+  if(${CMAKE_SYSTEM_PROCESSOR} IN_LIST ALLOW_AVX2) 
     set_property( SOURCE ${LIB_SOURCES_STRATEGIES_AVX2} APPEND PROPERTY COMPILE_FLAGS "-mavx2 -mbmi -mpopcnt -mlzcnt -mbmi2" )
+  endif()
   set(THREADS_PREFER_PTHREAD_FLAG ON)
   find_package(Threads REQUIRED)
   target_link_libraries(uvg266 PUBLIC Threads::Threads)

README.md

@@ -419,10 +419,11 @@ Others might encounter the same problem and there is probably much to
 improve in the build process. We want to make this as simple as
 possible.
 
+**CMakeLists.txt assumes that the x86 based CPUs are 64bit and support AVX2**
 
 ### CMake
 Depending on the platform, some additional tools are required for compiling uvg266 with CMake.
-For Ubuntu, the required packages are `automake autoconf build-essential`.
+For Ubuntu, the required packages are `build-essential cmake`.
 
 Run the following commands to compile and install uvg266.
 
@@ -433,6 +434,7 @@ Run the following commands to compile and install uvg266.
 
 Visual Studio natively supports opening the `CMakeLists.txt` of the CMake build package has been installed.
 Otherwise CMake-CLI can be used to generate the Visual Studio project files.
+**When building shared library with visual studio the tests will fail to link, the main binary will still work**
 
 ### Docker
 This project includes a [Dockerfile](./Dockerfile), which enables building for Docker.
@@ -442,6 +444,8 @@ For other examples, see [Dockerfile](./Dockerfile)
 
 ## Paper
 
+**The paper is open access**
+
 Please cite [this paper](https://ieeexplore.ieee.org/document/9690938) for uvg266:
 
 ```M. Viitanen, J. Sainio, A. Mercat, A. Lemmetti, and J. Vanne, “From HEVC to VVC: the First Development Steps of a Practical Intra Video Encoder,” Accepted to IEEE Transactions on Consumer Electronics```
@@ -484,7 +488,7 @@ You can generate Doxygen documentation pages by running the command
 - Main automatic way of testing is with Github Actions. Commits, branches
   and pull requests are tested automatically.
   - Uninitialized variables and such are checked with Valgrind.
-  - Bitstream validity is checked with HM.
+  - Bitstream validity is checked with VTM.
   - Compilation is checked on GCC and Clang on Linux, and Clang on OSX.
 - Windows msys2 and msvc builds are checked automatically on Appveyor.
 - If your changes change the bitstream, decode with VTM to check that

src/strategies/avx2/dct-avx2.c

@@ -36,10 +36,6 @@
 
 #include "strategies/avx2/dct-avx2.h"
 
-#if COMPILE_INTEL_AVX2
-#include "uvg266.h"
-#if UVG_BIT_DEPTH == 8
-#include <immintrin.h>
 
 #include "strategyselector.h"
 #include "tables.h"
@@ -56,7 +52,10 @@ extern const int16_t uvg_g_dct_8_t[8][8];
 extern const int16_t uvg_g_dct_16_t[16][16];
 extern const int16_t uvg_g_dct_32_t[32][32];
 
-
+#if COMPILE_INTEL_AVX2
+#include "uvg266.h"
+#if UVG_BIT_DEPTH == 8
+#include <immintrin.h>
 
 /*
 * \file
@@ -940,10 +939,6 @@ static void matrix_i ## type ## _## n ## x ## n ## _avx2(int8_t bitdepth, const
 TRANSFORM(dct, 32);
 ITRANSFORM(dct, 32);
 
-#endif // UVG_BIT_DEPTH == 8
-#endif //COMPILE_INTEL_AVX2
-
-
 
 /*****************************************************/
 /********************** M T S ************************/
@@ -1626,6 +1621,8 @@ static void mts_idct_avx2(
   }
 }
 
+#endif // UVG_BIT_DEPTH == 8
+#endif //COMPILE_INTEL_AVX2
 
 int uvg_strategy_register_dct_avx2(void* opaque, uint8_t bitdepth)
 {

tests/CMakeLists.txt

@@ -24,7 +24,10 @@ if(MSVC)
   set_property( SOURCE ${TEST_SOURCES}  APPEND PROPERTY COMPILE_FLAGS "/arch:AVX2" )
   add_definitions(-DWIN32_LEAN_AND_MEAN -D_WIN32 -DWIN32 -DWIN64)
 else()
+  list(APPEND ALLOW_AVX2 "x86_64" "AMD64")
+  if(${CMAKE_SYSTEM_PROCESSOR} IN_LIST ALLOW_AVX2) 
     set_property( SOURCE ${TEST_SOURCES}  APPEND PROPERTY COMPILE_FLAGS "-mavx2 -mbmi -mpopcnt -mlzcnt -mbmi2" )
+  endif()
   find_package(Threads REQUIRED)
   target_link_libraries(uvg266_tests PUBLIC Threads::Threads)
 
@@ -39,7 +42,5 @@ else()
   target_link_libraries(uvg266_tests PUBLIC ${EXTRA_LIBS})
 endif()
 
-add_definitions(-DCOMPILE_INTEL)
-
 target_link_libraries(uvg266_tests PUBLIC uvg266)