5ee15239fd
We now should be able to use PlatformEGL for all generic EGL platforms (not tested though). Most texture streaming operations are not supported in that case, since they're platform specific.
94 lines
3.5 KiB
CMake
94 lines
3.5 KiB
CMake
# Copyright (C) 2018 The Android Open Source Project
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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# For information on how to generate the toolchain, see filament/README.md
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# this one is important
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set(CMAKE_SYSTEM_NAME Linux)
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# this one not so much
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set(CMAKE_SYSTEM_VERSION 1)
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# android
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set(API_LEVEL 19)
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# architecture
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set(ARCH armv7a-linux-androideabi)
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set(AR_ARCH arm-linux-androideabi)
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set(DIST_ARCH armeabi-v7a)
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# toolchain
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string(TOLOWER ${CMAKE_HOST_SYSTEM_NAME} HOST_NAME_L)
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file(TO_CMAKE_PATH $ENV{ANDROID_HOME} ANDROID_HOME_UNIX)
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file(GLOB NDK_VERSIONS LIST_DIRECTORIES true ${ANDROID_HOME_UNIX}/ndk/*)
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list(SORT NDK_VERSIONS)
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list(GET NDK_VERSIONS -1 NDK_VERSION)
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get_filename_component(NDK_VERSION ${NDK_VERSION} NAME)
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set(TOOLCHAIN ${ANDROID_HOME_UNIX}/ndk/${NDK_VERSION}/toolchains/llvm/prebuilt/${HOST_NAME_L}-x86_64)
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# specify the cross compiler
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set(COMPILER_SUFFIX)
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set(TOOL_SUFFIX)
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if(WIN32)
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set(COMPILER_SUFFIX ".cmd")
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set(TOOL_SUFFIX ".exe")
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endif()
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set(CMAKE_C_COMPILER ${TOOLCHAIN}/bin/${ARCH}${API_LEVEL}-clang${COMPILER_SUFFIX})
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set(CMAKE_CXX_COMPILER ${TOOLCHAIN}/bin/${ARCH}${API_LEVEL}-clang++${COMPILER_SUFFIX})
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set(CMAKE_AR ${TOOLCHAIN}/bin/${AR_ARCH}-ar${TOOL_SUFFIX} CACHE FILEPATH "Archiver")
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set(CMAKE_RANLIB ${TOOLCHAIN}/bin/${AR_ARCH}-ranlib${TOOL_SUFFIX})
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set(CMAKE_STRIP ${TOOLCHAIN}/bin/${AR_ARCH}-strip${TOOL_SUFFIX})
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# where is the target environment
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set(CMAKE_FIND_ROOT_PATH ${TOOLCHAIN}/sysroot)
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# search for programs in the build host directories
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set(CMAKE_FIND_ROOT_PATH_MODE_PROGRAM NEVER)
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# for libraries and headers in the target directories
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set(CMAKE_FIND_ROOT_PATH_MODE_LIBRARY ONLY)
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set(CMAKE_FIND_ROOT_PATH_MODE_INCLUDE ONLY)
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# compiler and linker flags
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# note for gcc add:
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# C_FLAGS += -Wl,-pie
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# CXX_FLAGS += -lstdc++
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#
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# Cortex-A9 only has fpv3, but AFAIK, no Cortex-A9 has GLES 3.x capable GPU
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#
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# Krait support vfpv4
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# Cortex-A12 and Cortex-A15 ARMv7 support neon-fpv4
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# Cortex-A7 support fpv4 iif it has neon
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#
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# float ABI:
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# for softpf: CFLAGS must have -mfloat-abi=softfp
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# for hardfp: CFLAGS must have -mhard-float
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# LDFLAGS must have -Wl,--no-warn-mismatch
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#
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set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -mthumb -march=armv7-a -mcpu=cortex-a15 -mfloat-abi=softfp -mfpu=neon-vfpv4 -DANDROID -fPIE" CACHE STRING "Toolchain CFLAGS")
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set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${CMAKE_C_FLAGS}" CACHE STRING "Toolchain CXXFLAGS")
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set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -march=armv7-a -Wl,--no-warn-mismatch -L${TOOLCHAIN}/arm-linux-androideabi/lib/armv7-a -static-libstdc++ -fPIE -pie" CACHE STRING "Toolchain LDFLAGS")
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set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} -march=armv7-a -Wl,--no-warn-mismatch -L${TOOLCHAIN}/arm-linux-androideabi/lib/armv7-a -static-libstdc++" CACHE STRING "Toolchain LDFLAGS")
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set(CMAKE_POSITION_INDEPENDENT_CODE ON)
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set(ANDROID TRUE)
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set(EGL TRUE)
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# we are compiling Android on Windows
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set(ANDROID_ON_WINDOWS FALSE)
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if(WIN32)
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set(ANDROID_ON_WINDOWS TRUE)
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endif()
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