a93a661b94
The Android/NEON optimized version of Physics Effects is thanks to Graham Rhodes and Anthony Hamilton, See Issue 587
139 lines
7.0 KiB
Makefile
139 lines
7.0 KiB
Makefile
#
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# Applied Research Associates Inc. (c)2011
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#
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# Redistribution and use in source and binary forms,
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# with or without modification, are permitted provided that the
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# following conditions are met:
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# * Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# * Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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# * Neither the name of the Applied Research Associates Inc nor the names
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# of its contributors may be used to endorse or promote products derived
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# from this software without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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# POSSIBILITY OF SUCH DAMAGE.
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#
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# NOTE: The local path here is defined based on an environment
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# variable that points to the root of the Bullet/PhysicsEffects
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# code base. The variable must be set in the Cygwin style, e.g.,
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# BULLET_PFX_ROOT_CYGWIN = /cygdrive/d/tools/PhysicsEffectsRootPath
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#
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# The reason for *not* just setting local path := $(call my-dir)
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# is that we wish to access local source files that are *not*
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# located in a "jni" subfolder and *not* located in a subfolder
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# of the project folder. This enables us to have Eclipse and
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# Android NDK projects that fit neatly into the Bullet/PhysicsEffects
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# folder structure, enabling a multi platform code base, without
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# forcing the "jni" and subfolder structure that Android SDK/NDK
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# prefer for pure Android projects.
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LOCAL_PATH:= $(BULLET_PFX_ROOT_CYGWIN)
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# Copy the shared static library, libpfxlibrary.a, into the build
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include $(CLEAR_VARS)
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LOCAL_MODULE := pfxlibrary
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LOCAL_SRC_FILES := project/Android/PfxLibrary/obj/local/armeabi-v7a/libpfxlibrary.a
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include $(PREBUILT_STATIC_LIBRARY)
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include $(CLEAR_VARS)
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# Warning: do not enable SIMD vector math functions or NEON for running
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# in the Android NDK emulator. NEON requires a physical device
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# with NEON support.
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#
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# Note that in theory we can let LOCAL_ARM_NEON := true determine
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# that the flags -mfpu=neon and -mfloat-abi=softfp should be applied.
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# However, in practice we have seen one case where the ndk-build
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# script "forgets" these flags for the occasional *.cpp file, thus
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# causing those files to access the std definition of vectormath
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# classes, which are completely different, including different size.
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# So, we explicitly apply these flags to avoid having a broken
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# build.
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#
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# Include -DSCE_PFX_USE_SIMD_VECTORMATH to build for ARM NEON SIMD
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# intrinsics, and leave it off to use NEON for scalar math but without
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# SIMD.
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LOCAL_CFLAGS := $(LOCAL_C_INCLUDES:%=-I%) -mfpu=neon -mfloat-abi=softfp -DSCE_PFX_USE_SIMD_VECTORMATH
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# add the following #define to run standalone NEON speedup potential tests
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# -DTEST_NEON_PERFORMANCE
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#
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# apply these flags if needed
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# -ffast-math -funsafe-math-optimizations
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# apply this to disable optimization
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# TARGET_CFLAGS := $(TARGET_CFLAGS) -O0
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# apply these 2 to turn on assembly output (*.c/*.cpp to *.s file)
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# compile-cpp-source = $(eval $(call ev-compile-cpp-source,$1,$(1:%$(LOCAL_CPP_EXTENSION)=%.s)))
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# TARGET_CFLAGS := $(TARGET_CFLAGS) -S
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# specify static libraries to link in
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LOCAL_STATIC_LIBRARIES := pfxlibrary cpufeatures
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# Enable or disable NEON. Don't forget to apply, or not apply, -mfpu=neon and -mfloat-abi=softfp
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# flags in addition, e.g., if this is true both of those need to be included in LOCAL_CFLAGS
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# to avoid the possibility that ndk-build will "forget" to add them on some files
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LOCAL_ARM_NEON := true
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TARGET_CFLAGS := $(filter-out -ffpu=vfp,$(TARGET_CFLAGS))
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LOCAL_MODULE := PfxApp_1_Simple
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LOCAL_C_INCLUDES := \
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$(LOCAL_PATH)/include \
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$(LOCAL_PATH)sample/api_physics_effects/1_simple \
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$(LOCAL_PATH)sample/api_physics_effects/common \
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$(LOCAL_PATH)sample/test_ARM_NEON_performance
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#
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# The source files located in the test_ARM_NEON_performance folder are used
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# to test the potential performance improvements of atomic vector math
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# functions using ARM NEON instructions. Note that these are tested outside
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# of the vectormath library, to avoid the overhead associated with that
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# library. The assembly files contain pure NEON assembly code.
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#
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# The test_neon_solve_linear_constraint_row.cpp is not an atomic vector
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# math operation. Rather it is a NEON assembly implementation of one of the
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# leaf functions in the physics effects low level constraint solver.
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#
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LOCAL_SRC_FILES := \
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sample/api_physics_effects/common/jni/physicseffects-android.cpp \
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sample/api_physics_effects/1_simple/main.cpp \
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sample/api_physics_effects/1_simple/physics_func.cpp \
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sample/api_physics_effects/common/ctrl_func.android.cpp \
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sample/api_physics_effects/common/render_func.android.cpp \
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sample/api_physics_effects/common/perf_func.android.cpp \
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sample/test_ARM_NEON_performance/neon_dot_product.S \
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sample/test_ARM_NEON_performance/neon_cross_product.S \
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sample/test_ARM_NEON_performance/neon_matrix4_operator_multiply.S \
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sample/test_ARM_NEON_performance/neon_matrix3_operator_multiply.S \
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sample/test_ARM_NEON_performance/neon_orthoInverse_transform3.S \
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sample/test_ARM_NEON_performance/neon_transform3_operator_multiply.S \
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sample/test_ARM_NEON_performance/neon_transpose_matrix3.S \
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sample/test_ARM_NEON_performance/test_neon_cross_product.cpp \
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sample/test_ARM_NEON_performance/test_neon_dot_product.cpp \
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sample/test_ARM_NEON_performance/test_neon_matrix3_operator_multiply.cpp \
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sample/test_ARM_NEON_performance/test_neon_matrix4_operator_multiply.cpp \
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sample/test_ARM_NEON_performance/test_neon_orthoInverse_transform3.cpp \
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sample/test_ARM_NEON_performance/test_neon_transform3_operator_multiply.cpp \
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sample/test_ARM_NEON_performance/test_neon_transpose_matrix3.cpp \
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sample/test_ARM_NEON_performance/test_neon_solve_linear_constraint_row.cpp
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LOCAL_LDLIBS := -L$(SYSROOT)/usr/lib -lGLESv1_CM -ldl -lm -llog
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include $(BUILD_SHARED_LIBRARY)
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$(call import-module,android/cpufeatures)
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