# Hand-written static build of zimg 3.0.6 for x86_64-w64-mingw32 (automake is
# not installed). Mirrors Makefile.am with X86SIMD on; X86SIMD_AVX512 stays off
# because zimg's configure test uses -mavx512pf/-mavx512er, which GCC 16 no
# longer accepts, so autotools would disable it too.
S      ?= ../../src/zimg-release-3.0.6
CROSS  ?= x86_64-w64-mingw32-
CXX     = $(CROSS)g++
AR      = $(CROSS)ar
RANLIB  = $(CROSS)ranlib
# -Wa,-muse-unaligned-vector-move: GCC on Win64 may keep AVX locals on an
# unaligned stack (GCC bug 54412); the assembler turns aligned moves into
# unaligned ones so AVX/AVX2 paths cannot fault.
CXXFLAGS = -std=c++14 -O2 -Wall -Wextra -Wno-unused-parameter -Wno-missing-field-initializers \
           -DNDEBUG -DZIMG_X86 -I$(S)/src/zimg -Wa,-muse-unaligned-vector-move

BASE = api/zimg colorspace/colorspace colorspace/colorspace_param colorspace/gamma colorspace/graph \
       colorspace/matrix3 colorspace/operation colorspace/operation_impl common/cpuinfo common/libm_wrapper \
       common/matrix depth/blue depth/depth_convert depth/depth depth/dither depth/quantize \
       graph/basic_filter graph/filtergraph graph/graphbuilder graph/graphnode resize/filter resize/resize \
       resize/resize_impl unresize/bilinear unresize/unresize unresize/unresize_impl \
       colorspace/x86/operation_impl_x86 common/x86/cpuinfo_x86 common/x86/x86util \
       depth/x86/depth_convert_x86 depth/x86/dither_x86 resize/x86/resize_impl_x86
SSE  = colorspace/x86/operation_impl_sse resize/x86/resize_impl_sse
SSE2 = colorspace/x86/operation_impl_sse2 depth/x86/depth_convert_sse2 depth/x86/dither_sse2 \
       depth/x86/error_diffusion_sse2 depth/x86/f16c_sse2 resize/x86/resize_impl_sse2
AVX  = colorspace/x86/operation_impl_avx resize/x86/resize_impl_avx
F16C = depth/x86/f16c_ivb
AVX2 = colorspace/x86/operation_impl_avx2 depth/x86/depth_convert_avx2 depth/x86/dither_avx2 \
       depth/x86/error_diffusion_avx2 resize/x86/resize_impl_avx2

obj = $(addprefix obj/,$(addsuffix .o,$(1)))
OBJS = $(call obj,$(BASE) $(SSE) $(SSE2) $(AVX) $(F16C) $(AVX2))

$(call obj,$(SSE)):  EXTRA = -msse
$(call obj,$(SSE2)): EXTRA = -msse2
$(call obj,$(AVX)):  EXTRA = -mavx -mtune=sandybridge
$(call obj,$(F16C)): EXTRA = -mavx -mf16c -mtune=ivybridge
$(call obj,$(AVX2)): EXTRA = -mavx2 -mf16c -mfma -mtune=haswell

libzimg.a: $(OBJS)
	rm -f $@
	$(AR) rcs $@ $^
	$(RANLIB) $@

obj/%.o: $(S)/src/zimg/%.cpp
	@mkdir -p $(dir $@)
	$(CXX) $(CXXFLAGS) $(EXTRA) -c $< -o $@

install: libzimg.a
	mkdir -p $(PREFIX)/include $(PREFIX)/lib/pkgconfig
	cp $(S)/src/zimg/api/zimg.h $(S)/src/zimg/api/zimg++.hpp $(PREFIX)/include/
	cp libzimg.a $(PREFIX)/lib/