cmake: Add partial configure.
- Add minimal compiler flag testing.
- Generate aom_config.c and aom_config.h. Note: hard coded
to generic-gnu values for now.
- Still a work in progress. This will not build anything.
BUG=https://bugs.chromium.org/p/aomedia/issues/detail?id=76
Change-Id: Id65b42ea9f4c4f744d788660e2de7234886ce039
diff --git a/CMakeLists.txt b/CMakeLists.txt
index bfaa1f6..6ff8cef 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -12,8 +12,12 @@
project(AOM C CXX)
set(AOM_ROOT "${CMAKE_CURRENT_SOURCE_DIR}")
+set(AOM_CONFIG_DIR "${CMAKE_CURRENT_BINARY_DIR}")
+include("${AOM_ROOT}/build/cmake/aom_configure.cmake")
set(AOM_SRCS
+ "${AOM_CONFIG_DIR}/aom_config.c"
+ "${AOM_CONFIG_DIR}/aom_config.h"
"${AOM_ROOT}/aom/aom.h"
"${AOM_ROOT}/aom/aom_codec.h"
"${AOM_ROOT}/aom/aom_decoder.h"
@@ -242,8 +246,10 @@
# Targets
add_library(aom_dsp ${AOM_DSP_SRCS})
+include_directories(${AOM_ROOT} ${AOM_CONFIG_DIR})
add_library(aom_mem ${AOM_MEM_SRCS})
add_library(aom_scale ${AOM_SCALE_SRCS})
+include_directories(${AOM_ROOT} ${AOM_CONFIG_DIR})
add_library(aom_util ${AOM_UTIL_SRCS})
add_library(aom_av1_decoder ${AOM_AV1_DECODER_SRCS})
add_library(aom_av1_encoder ${AOM_AV1_ENCODER_SRCS})
diff --git a/build/cmake/aom_config.c.cmake b/build/cmake/aom_config.c.cmake
new file mode 100644
index 0000000..70bf950
--- /dev/null
+++ b/build/cmake/aom_config.c.cmake
@@ -0,0 +1,15 @@
+/*
+ * Copyright (c) 2016, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+#include "aom/aom_codec.h"
+static const char* const cfg = "${AOM_CMAKE_CONFIG}";
+static const char* const aom_git_hash = "${AOM_GIT_HASH}";
+const char *aom_codec_build_config(void) {return cfg;}
+const char *aom_codec_git_hash(void) {return aom_git_hash;}
diff --git a/build/cmake/aom_config.h.cmake b/build/cmake/aom_config.h.cmake
new file mode 100644
index 0000000..f5f2583
--- /dev/null
+++ b/build/cmake/aom_config.h.cmake
@@ -0,0 +1,117 @@
+/*
+ * Copyright (c) 2016, Alliance for Open Media. All rights reserved
+ *
+ * This source code is subject to the terms of the BSD 2 Clause License and
+ * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+ * was not distributed with this source code in the LICENSE file, you can
+ * obtain it at www.aomedia.org/license/software. If the Alliance for Open
+ * Media Patent License 1.0 was not distributed with this source code in the
+ * PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+ */
+
+/* This file is processed by cmake and used to produce aom_config.h in the
+ * directory where cmake was executed. */
+#ifndef AOM_CONFIG_H
+#define AOM_CONFIG_H
+#define RESTRICT ${RESTRICT}
+#define INLINE ${INLINE}
+#define ARCH_ARM ${ARCH_ARM}
+#define ARCH_MIPS ${ARCH_MIPS}
+#define ARCH_X86 ${ARCH_X86}
+#define ARCH_X86_64 ${ARCH_X86_64}
+#define HAVE_EDSP ${HAVE_EDSP}
+#define HAVE_MEDIA ${HAVE_MEDIA}
+#define HAVE_NEON ${HAVE_NEON}
+#define HAVE_NEON_ASM ${HAVE_NEON_ASM}
+#define HAVE_MIPS32 ${HAVE_MIPS32}
+#define HAVE_DSPR2 ${HAVE_DSPR2}
+#define HAVE_MSA ${HAVE_MSA}
+#define HAVE_MIPS64 ${HAVE_MIPS64}
+#define HAVE_MMX ${HAVE_MMX}
+#define HAVE_SSE ${HAVE_SSE}
+#define HAVE_SSE2 ${HAVE_SSE2}
+#define HAVE_SSE3 ${HAVE_SSE3}
+#define HAVE_SSSE3 ${HAVE_SSSE3}
+#define HAVE_SSE4_1 ${HAVE_SSE4_1}
+#define HAVE_AVX ${HAVE_AVX}
+#define HAVE_AVX2 ${HAVE_AVX2}
+#define HAVE_AOM_PORTS ${HAVE_AOM_PORTS}
+#define HAVE_PTHREAD_H ${HAVE_PTHREAD_H}
+#define HAVE_UNISTD_H ${HAVE_UNISTD_H}
+#define CONFIG_DEPENDENCY_TRACKING ${CONFIG_DEPENDENCY_TRACKING}
+#define CONFIG_EXTERNAL_BUILD ${CONFIG_EXTERNAL_BUILD}
+#define CONFIG_INSTALL_DOCS ${CONFIG_INSTALL_DOCS}
+#define CONFIG_INSTALL_BINS ${CONFIG_INSTALL_BINS}
+#define CONFIG_INSTALL_LIBS ${CONFIG_INSTALL_LIBS}
+#define CONFIG_INSTALL_SRCS ${CONFIG_INSTALL_SRCS}
+#define CONFIG_USE_X86INC ${CONFIG_USE_X86INC}
+#define CONFIG_DEBUG ${CONFIG_DEBUG}
+#define CONFIG_GPROF ${CONFIG_GPROF}
+#define CONFIG_GCOV ${CONFIG_GCOV}
+#define CONFIG_RVCT ${CONFIG_RVCT}
+#define CONFIG_GCC ${CONFIG_GCC}
+#define CONFIG_MSVS ${CONFIG_MSVS}
+#define CONFIG_PIC ${CONFIG_PIC}
+#define CONFIG_BIG_ENDIAN ${CONFIG_BIG_ENDIAN}
+#define CONFIG_CODEC_SRCS ${CONFIG_CODEC_SRCS}
+#define CONFIG_DEBUG_LIBS ${CONFIG_DEBUG_LIBS}
+#define CONFIG_DEQUANT_TOKENS ${CONFIG_DEQUANT_TOKENS}
+#define CONFIG_DC_RECON ${CONFIG_DC_RECON}
+#define CONFIG_RUNTIME_CPU_DETECT ${CONFIG_RUNTIME_CPU_DETECT}
+#define CONFIG_MULTITHREAD ${CONFIG_MULTITHREAD}
+#define CONFIG_INTERNAL_STATS ${CONFIG_INTERNAL_STATS}
+#define CONFIG_AV1_ENCODER ${CONFIG_AV1_ENCODER}
+#define CONFIG_AV1_DECODER ${CONFIG_AV1_DECODER}
+#define CONFIG_AV1 ${CONFIG_AV1}
+#define CONFIG_ENCODERS ${CONFIG_ENCODERS}
+#define CONFIG_DECODERS ${CONFIG_DECODERS}
+#define CONFIG_STATIC_MSVCRT ${CONFIG_STATIC_MSVCRT}
+#define CONFIG_SPATIAL_RESAMPLING ${CONFIG_SPATIAL_RESAMPLING}
+#define CONFIG_REALTIME_ONLY ${CONFIG_REALTIME_ONLY}
+#define CONFIG_ONTHEFLY_BITPACKING ${CONFIG_ONTHEFLY_BITPACKING}
+#define CONFIG_ERROR_CONCEALMENT ${CONFIG_ERROR_CONCEALMENT}
+#define CONFIG_SHARED ${CONFIG_SHARED}
+#define CONFIG_STATIC ${CONFIG_STATIC}
+#define CONFIG_SMALL ${CONFIG_SMALL}
+#define CONFIG_OS_SUPPORT ${CONFIG_OS_SUPPORT}
+#define CONFIG_UNIT_TESTS ${CONFIG_UNIT_TESTS}
+#define CONFIG_WEBM_IO ${CONFIG_WEBM_IO}
+#define CONFIG_LIBYUV ${CONFIG_LIBYUV}
+#define CONFIG_ACCOUNTING ${CONFIG_ACCOUNTING}
+#define CONFIG_DECODE_PERF_TESTS ${CONFIG_DECODE_PERF_TESTS}
+#define CONFIG_ENCODE_PERF_TESTS ${CONFIG_ENCODE_PERF_TESTS}
+#define CONFIG_MULTI_RES_ENCODING ${CONFIG_MULTI_RES_ENCODING}
+#define CONFIG_TEMPORAL_DENOISING ${CONFIG_TEMPORAL_DENOISING}
+#define CONFIG_COEFFICIENT_RANGE_CHECKING ${CONFIG_COEFFICIENT_RANGE_CHECKING}
+#define CONFIG_AOM_HIGHBITDEPTH ${CONFIG_AOM_HIGHBITDEPTH}
+#define CONFIG_EXPERIMENTAL ${CONFIG_EXPERIMENTAL}
+#define CONFIG_SIZE_LIMIT ${CONFIG_SIZE_LIMIT}
+#define CONFIG_AOM_QM ${CONFIG_AOM_QM}
+#define CONFIG_SPATIAL_SVC ${CONFIG_SPATIAL_SVC}
+#define CONFIG_FP_MB_STATS ${CONFIG_FP_MB_STATS}
+#define CONFIG_EMULATE_HARDWARE ${CONFIG_EMULATE_HARDWARE}
+#define CONFIG_CLPF ${CONFIG_CLPF}
+#define CONFIG_DERING ${CONFIG_DERING}
+#define CONFIG_REF_MV ${CONFIG_REF_MV}
+#define CONFIG_SUB8X8_MC ${CONFIG_SUB8X8_MC}
+#define CONFIG_EXT_INTRA ${CONFIG_EXT_INTRA}
+#define CONFIG_EXT_INTERP ${CONFIG_EXT_INTERP}
+#define CONFIG_EXT_TX ${CONFIG_EXT_TX}
+#define CONFIG_MOTION_VAR ${CONFIG_MOTION_VAR}
+#define CONFIG_EXT_REFS ${CONFIG_EXT_REFS}
+#define CONFIG_EXT_COMPOUND ${CONFIG_EXT_COMPOUND}
+#define CONFIG_SUPERTX ${CONFIG_SUPERTX}
+#define CONFIG_ANS ${CONFIG_ANS}
+#define CONFIG_EC_MULTISYMBOL ${CONFIG_EC_MULTISYMBOL}
+#define CONFIG_DAALA_EC ${CONFIG_DAALA_EC}
+#define CONFIG_PARALLEL_DEBLOCKING ${CONFIG_PARALLEL_DEBLOCKING}
+#define CONFIG_CB4X4 ${CONFIG_CB4X4}
+#define CONFIG_PALETTE ${CONFIG_PALETTE}
+#define CONFIG_FRAME_SIZE ${CONFIG_FRAME_SIZE}
+#define CONFIG_FILTER_7BIT ${CONFIG_FILTER_7BIT}
+#define CONFIG_DELTA_Q ${CONFIG_DELTA_Q}
+#define CONFIG_ADAPT_SCAN ${CONFIG_ADAPT_SCAN}
+#define CONFIG_BITSTREAM_DEBUG ${CONFIG_BITSTREAM_DEBUG}
+#define CONFIG_TILE_GROUPS ${CONFIG_TILE_GROUPS}
+#define CONFIG_EC_ADAPT ${CONFIG_EC_ADAPT}
+#endif /* AOM_CONFIG_H */
diff --git a/build/cmake/aom_configure.cmake b/build/cmake/aom_configure.cmake
new file mode 100644
index 0000000..f1c7691
--- /dev/null
+++ b/build/cmake/aom_configure.cmake
@@ -0,0 +1,152 @@
+##
+## Copyright (c) 2016, Alliance for Open Media. All rights reserved
+##
+## This source code is subject to the terms of the BSD 2 Clause License and
+## the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+## was not distributed with this source code in the LICENSE file, you can
+## obtain it at www.aomedia.org/license/software. If the Alliance for Open
+## Media Patent License 1.0 was not distributed with this source code in the
+## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+##
+cmake_minimum_required(VERSION 3.2)
+
+include("${AOM_ROOT}/build/cmake/compiler_flags.cmake")
+
+include(FindGit)
+
+# Defaults for every libaom configuration variable.
+set(RESTRICT)
+set(INLINE)
+set(ARCH_ARM 0)
+set(ARCH_MIPS 0)
+set(ARCH_X86 0)
+set(ARCH_X86_64 0)
+set(HAVE_EDSP 0)
+set(HAVE_MEDIA 0)
+set(HAVE_NEON 0)
+set(HAVE_NEON_ASM 0)
+set(HAVE_MIPS32 0)
+set(HAVE_DSPR2 0)
+set(HAVE_MSA 0)
+set(HAVE_MIPS64 0)
+set(HAVE_MMX 0)
+set(HAVE_SSE 0)
+set(HAVE_SSE2 0)
+set(HAVE_SSE3 0)
+set(HAVE_SSSE3 0)
+set(HAVE_SSE4_1 0)
+set(HAVE_AVX 0)
+set(HAVE_AVX2 0)
+set(HAVE_AOM_PORTS 0)
+set(HAVE_PTHREAD_H 0)
+set(HAVE_UNISTD_H 0)
+set(CONFIG_DEPENDENCY_TRACKING 1)
+set(CONFIG_EXTERNAL_BUILD 0)
+set(CONFIG_INSTALL_DOCS 0)
+set(CONFIG_INSTALL_BINS 0)
+set(CONFIG_INSTALL_LIBS 0)
+set(CONFIG_INSTALL_SRCS 0)
+set(CONFIG_USE_X86INC 0)
+set(CONFIG_DEBUG 0)
+set(CONFIG_GPROF 0)
+set(CONFIG_GCOV 0)
+set(CONFIG_RVCT 0)
+set(CONFIG_GCC 0)
+set(CONFIG_MSVS 0)
+set(CONFIG_PIC 0)
+set(CONFIG_BIG_ENDIAN 0)
+set(CONFIG_CODEC_SRCS 0)
+set(CONFIG_DEBUG_LIBS 0)
+set(CONFIG_DEQUANT_TOKENS 0)
+set(CONFIG_DC_RECON 0)
+set(CONFIG_RUNTIME_CPU_DETECT 0)
+set(CONFIG_MULTITHREAD 0)
+set(CONFIG_INTERNAL_STATS 0)
+set(CONFIG_AV1_ENCODER 1)
+set(CONFIG_AV1_DECODER 1)
+set(CONFIG_AV1 1)
+set(CONFIG_ENCODERS 1)
+set(CONFIG_DECODERS 1)
+set(CONFIG_STATIC_MSVCRT 0)
+set(CONFIG_SPATIAL_RESAMPLING 1)
+set(CONFIG_REALTIME_ONLY 0)
+set(CONFIG_ONTHEFLY_BITPACKING 0)
+set(CONFIG_ERROR_CONCEALMENT 0)
+set(CONFIG_SHARED 0)
+set(CONFIG_STATIC 1)
+set(CONFIG_SMALL 0)
+set(CONFIG_OS_SUPPORT 0)
+set(CONFIG_UNIT_TESTS 0)
+set(CONFIG_WEBM_IO 0)
+set(CONFIG_LIBYUV 0)
+set(CONFIG_ACCOUNTING 0)
+set(CONFIG_DECODE_PERF_TESTS 0)
+set(CONFIG_ENCODE_PERF_TESTS 0)
+set(CONFIG_MULTI_RES_ENCODING 0)
+set(CONFIG_TEMPORAL_DENOISING 1)
+set(CONFIG_COEFFICIENT_RANGE_CHECKING 0)
+set(CONFIG_AOM_HIGHBITDEPTH 0)
+set(CONFIG_EXPERIMENTAL 0)
+set(CONFIG_SIZE_LIMIT 0)
+set(CONFIG_AOM_QM 0)
+set(CONFIG_SPATIAL_SVC 0)
+set(CONFIG_FP_MB_STATS 0)
+set(CONFIG_EMULATE_HARDWARE 0)
+set(CONFIG_CLPF 0)
+set(CONFIG_DERING 0)
+set(CONFIG_REF_MV 0)
+set(CONFIG_SUB8X8_MC 0)
+set(CONFIG_EXT_INTRA 0)
+set(CONFIG_EXT_INTERP 0)
+set(CONFIG_EXT_TX 0)
+set(CONFIG_MOTION_VAR 0)
+set(CONFIG_EXT_REFS 0)
+set(CONFIG_EXT_COMPOUND 0)
+set(CONFIG_SUPERTX 0)
+set(CONFIG_ANS 0)
+set(CONFIG_EC_MULTISYMBOL 0)
+set(CONFIG_DAALA_EC 0)
+set(CONFIG_PARALLEL_DEBLOCKING 0)
+set(CONFIG_CB4X4 0)
+set(CONFIG_PALETTE 0)
+set(CONFIG_FRAME_SIZE 0)
+set(CONFIG_FILTER_7BIT 0)
+set(CONFIG_DELTA_Q 0)
+set(CONFIG_ADAPT_SCAN 0)
+set(CONFIG_BITSTREAM_DEBUG 0)
+set(CONFIG_TILE_GROUPS 0)
+set(CONFIG_EC_ADAPT 0)
+
+# TODO(tomfinegan): consume trailing whitespace after configure_file().
+configure_file("${AOM_ROOT}/build/cmake/aom_config.h.cmake"
+ "${CMAKE_CURRENT_BINARY_DIR}/aom_config.h")
+
+# Read the current git hash.
+find_package(Git)
+if (GIT_FOUND)
+ # TODO(tomfinegan): Make this smart enough to write a proper version string
+ # when in a repo that is on a label and clean.
+ # TODO(tomfinegan): In addition to the one above, also make this a custom
+ # build rule so users don't have to re-run cmake to create accurately
+ # versioned cmake builds.
+ execute_process(COMMAND ${GIT_EXECUTABLE}
+ --git-dir=${AOM_ROOT}/.git rev-parse HEAD
+ OUTPUT_VARIABLE AOM_GIT_HASH)
+ # Consume the newline at the end of the git output.
+ string(STRIP ${AOM_GIT_HASH} AOM_GIT_HASH)
+else ()
+ set(AOM_GIT_HASH)
+endIf ()
+
+# TODO(tomfinegan): An alternative to dumping the configure command line to
+# aom_config.c is needed in cmake. Normal cmake generation runs do not make the
+# command line available in the cmake script. For now, we just set the variable
+# to the following. The configure_file() command will expand the message in
+# aom_config.c.
+# Note: This message isn't strictly true. When cmake is run in script mode (with
+# the -P argument), CMAKE_ARGC and CMAKE_ARGVn are defined (n = 0 through
+# n = CMAKE_ARGC become valid). Normal cmake generation runs do not make the
+# information available.
+set(AOM_CMAKE_CONFIG "cmake")
+configure_file("${AOM_ROOT}/build/cmake/aom_config.c.cmake"
+ "${CMAKE_CURRENT_BINARY_DIR}/aom_config.c")
diff --git a/build/cmake/compiler_flags.cmake b/build/cmake/compiler_flags.cmake
new file mode 100644
index 0000000..3ccbc0f
--- /dev/null
+++ b/build/cmake/compiler_flags.cmake
@@ -0,0 +1,56 @@
+##
+## Copyright (c) 2016, Alliance for Open Media. All rights reserved
+##
+## This source code is subject to the terms of the BSD 2 Clause License and
+## the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License
+## was not distributed with this source code in the LICENSE file, you can
+## obtain it at www.aomedia.org/license/software. If the Alliance for Open
+## Media Patent License 1.0 was not distributed with this source code in the
+## PATENTS file, you can obtain it at www.aomedia.org/license/patent.
+##
+cmake_minimum_required(VERSION 3.2)
+
+include(CheckCCompilerFlag)
+include(CheckCXXCompilerFlag)
+
+function (add_c_flag_if_supported c_flag)
+ unset(C_FLAG_SUPPORTED CACHE)
+ message("Checking C compiler flag support for: " ${c_flag})
+ check_c_compiler_flag("${c_flag}" C_FLAG_SUPPORTED)
+ if (C_FLAG_SUPPORTED)
+ set(CMAKE_C_FLAGS "${c_flag} ${CMAKE_C_FLAGS}" CACHE STRING "" FORCE)
+ endif ()
+endfunction ()
+
+function (add_cxx_flag_if_supported cxx_flag)
+ unset(CXX_FLAG_SUPPORTED CACHE)
+ message("Checking CXX compiler flag support for: " ${cxx_flag})
+ check_cxx_compiler_flag("${cxx_flag}" CXX_FLAG_SUPPORTED)
+ if (CXX_FLAG_SUPPORTED)
+ set(CMAKE_CXX_FLAGS "${cxx_flag} ${CMAKE_CXX_FLAGS}" CACHE STRING "" FORCE)
+ endif ()
+endfunction ()
+
+function (add_compiler_flag_if_supported flag)
+ add_c_flag_if_supported(${flag})
+ add_cxx_flag_if_supported(${flag})
+endfunction ()
+
+# Set warning levels.
+if (MSVC)
+ add_compiler_flag_if_supported("/W3")
+ # Disable MSVC warnings that suggest making code non-portable.
+ add_compiler_flag_if_supported("/wd4996")
+ if (ENABLE_WERROR)
+ add_compiler_flag_if_supported("/WX")
+ endif ()
+else ()
+ add_compiler_flag_if_supported("-Wall")
+ add_compiler_flag_if_supported("-Wextra")
+ add_compiler_flag_if_supported("-Wno-deprecated")
+ add_compiler_flag_if_supported("-Wshorten-64-to-32")
+ add_compiler_flag_if_supported("-Wnarrowing")
+ if (ENABLE_WERROR)
+ add_compiler_flag_if_supported("-Werror")
+ endif ()
+endif ()
