##
##  Copyright (c) 2010 The WebM project authors. All Rights Reserved.
##
##  Use of this source code is governed by a BSD-style license
##  that can be found in the LICENSE file in the root of the source
##  tree. An additional intellectual property rights grant can be found
##  in the file PATENTS.  All contributing project authors may
##  be found in the AUTHORS file in the root of the source tree.
##

LIBYUV_SRCS +=  third_party/libyuv/include/libyuv/basic_types.h  \
                third_party/libyuv/include/libyuv/cpu_id.h  \
                third_party/libyuv/include/libyuv/scale.h  \
                third_party/libyuv/source/row.h \
                third_party/libyuv/source/scale.c  \
                third_party/libyuv/source/cpu_id.c

# List of examples to build. UTILS are files that are taken from the source
# tree directly, and GEN_EXAMPLES are files that are created from the
# examples folder.
UTILS-$(CONFIG_DECODERS)    += vpxdec.c
vpxdec.SRCS                 += md5_utils.c md5_utils.h
vpxdec.SRCS                 += vpx_ports/vpx_timer.h
vpxdec.SRCS                 += vpx/vpx_integer.h
vpxdec.SRCS                 += args.c args.h
vpxdec.SRCS                 += ivfdec.c ivfdec.h
vpxdec.SRCS                 += tools_common.c tools_common.h
vpxdec.SRCS                 += webmdec.c webmdec.h
vpxdec.SRCS                 += y4menc.c y4menc.h
vpxdec.SRCS                 += nestegg/halloc/halloc.h
vpxdec.SRCS                 += nestegg/halloc/src/align.h
vpxdec.SRCS                 += nestegg/halloc/src/halloc.c
vpxdec.SRCS                 += nestegg/halloc/src/hlist.h
vpxdec.SRCS                 += nestegg/halloc/src/macros.h
vpxdec.SRCS                 += nestegg/include/nestegg/nestegg.h
vpxdec.SRCS                 += nestegg/src/nestegg.c
vpxdec.SRCS                 += $(LIBYUV_SRCS)
vpxdec.GUID                  = BA5FE66F-38DD-E034-F542-B1578C5FB950
vpxdec.DESCRIPTION           = Full featured decoder
UTILS-$(CONFIG_ENCODERS)    += vpxenc.c
vpxenc.SRCS                 += args.c args.h y4minput.c y4minput.h vpxenc.h
vpxenc.SRCS                 += ivfdec.c ivfdec.h
vpxenc.SRCS                 += ivfenc.c ivfenc.h
vpxenc.SRCS                 += rate_hist.c rate_hist.h
vpxenc.SRCS                 += tools_common.c tools_common.h
vpxenc.SRCS                 += warnings.c warnings.h
vpxenc.SRCS                 += webmenc.c webmenc.h
vpxenc.SRCS                 += vpx_ports/mem_ops.h
vpxenc.SRCS                 += vpx_ports/mem_ops_aligned.h
vpxenc.SRCS                 += vpx_ports/vpx_timer.h
vpxenc.SRCS                 += vpxstats.c vpxstats.h
vpxenc.SRCS                 += third_party/libmkv/EbmlIDs.h
vpxenc.SRCS                 += third_party/libmkv/EbmlWriter.c
vpxenc.SRCS                 += third_party/libmkv/EbmlWriter.h
vpxenc.SRCS                 += $(LIBYUV_SRCS)
vpxenc.GUID                  = 548DEC74-7A15-4B2B-AFC3-AA102E7C25C1
vpxenc.DESCRIPTION           = Full featured encoder
UTILS-$(CONFIG_VP8_ENCODER)    += vp8_scalable_patterns.c
vp8_scalable_patterns.GUID   = 0D6A210B-F482-4D6F-8570-4A9C01ACC88C
vp8_scalable_patterns.DESCRIPTION = Temporal Scalability Encoder
UTILS-$(CONFIG_VP9_ENCODER)    += vp9_spatial_scalable_encoder.c
vp9_spatial_scalable_encoder.SRCS += args.c args.h
vp9_spatial_scalable_encoder.SRCS += ivfenc.c ivfenc.h
vp9_spatial_scalable_encoder.SRCS += tools_common.c tools_common.h
vp9_spatial_scalable_encoder.GUID   = 4A38598D-627D-4505-9C7B-D4020C84100D
vp9_spatial_scalable_encoder.DESCRIPTION = Spatial Scalable Encoder

ifeq ($(CONFIG_SHARED),no)
UTILS-$(CONFIG_VP9_ENCODER)    += resize_util.c
endif

# XMA example disabled for now, not used in VP8
#UTILS-$(CONFIG_DECODERS)    += example_xma.c
#example_xma.GUID             = A955FC4A-73F1-44F7-135E-30D84D32F022
#example_xma.DESCRIPTION      = External Memory Allocation mode usage

GEN_EXAMPLES-$(CONFIG_VP8_DECODER) += simple_decoder.c
simple_decoder.GUID                = D3BBF1E9-2427-450D-BBFF-B2843C1D44CC
simple_decoder.SRCS                += ivfdec.h ivfdec.c
simple_decoder.SRCS                += tools_common.h tools_common.c
simple_decoder.DESCRIPTION         = Simplified decoder loop
GEN_EXAMPLES-$(CONFIG_VP8_DECODER) += postproc.c
postproc.SRCS                      += ivfdec.h ivfdec.c
postproc.SRCS                      += tools_common.h tools_common.c
postproc.GUID                    = 65E33355-F35E-4088-884D-3FD4905881D7
postproc.DESCRIPTION             = Decoder postprocessor control
GEN_EXAMPLES-$(CONFIG_VP8_DECODER) += decode_to_md5.c
decode_to_md5.SRCS                 += md5_utils.h md5_utils.c
decode_to_md5.SRCS                 += ivfdec.h ivfdec.c
decode_to_md5.SRCS                 += tools_common.h tools_common.c
decode_to_md5.GUID                 = 59120B9B-2735-4BFE-B022-146CA340FE42
decode_to_md5.DESCRIPTION          = Frame by frame MD5 checksum

GEN_EXAMPLES-$(CONFIG_VP8_ENCODER) += simple_encoder.c
simple_encoder.GUID              = 4607D299-8A71-4D2C-9B1D-071899B6FBFD
simple_encoder.DESCRIPTION       = Simplified encoder loop
GEN_EXAMPLES-$(CONFIG_VP8_ENCODER) += twopass_encoder.c
twopass_encoder.GUID             = 73494FA6-4AF9-4763-8FBB-265C92402FD8
twopass_encoder.DESCRIPTION      = Two-pass encoder loop
GEN_EXAMPLES-$(CONFIG_VP8_ENCODER) += force_keyframe.c
force_keyframe.GUID              = 3C67CADF-029F-4C86-81F5-D6D4F51177F0
force_keyframe.DESCRIPTION       = Force generation of keyframes
ifeq ($(CONFIG_DECODERS),yes)
GEN_EXAMPLES-$(CONFIG_VP8_ENCODER) += decode_with_drops.c
decode_with_drops.SRCS             += ivfdec.h ivfdec.c
decode_with_drops.SRCS             += tools_common.h tools_common.c
endif
decode_with_drops.GUID           = CE5C53C4-8DDA-438A-86ED-0DDD3CDB8D26
decode_with_drops.DESCRIPTION    = Drops frames while decoding
ifeq ($(CONFIG_VP8_DECODER),yes)
GEN_EXAMPLES-$(CONFIG_ERROR_CONCEALMENT) += decode_with_partial_drops.c
endif
decode_with_partial_drops.GUID           = 61C2D026-5754-46AC-916F-1343ECC5537E
decode_with_partial_drops.DESCRIPTION    = Drops parts of frames while decoding
GEN_EXAMPLES-$(CONFIG_VP8_ENCODER) += error_resilient.c
error_resilient.GUID             = DF5837B9-4145-4F92-A031-44E4F832E00C
error_resilient.DESCRIPTION      = Error Resiliency Feature

GEN_EXAMPLES-$(CONFIG_VP8_ENCODER) += vp8_set_maps.c
vp8_set_maps.GUID                   = ECB2D24D-98B8-4015-A465-A4AF3DCC145F
vp8_set_maps.DESCRIPTION            = VP8 set active and ROI maps
GEN_EXAMPLES-$(CONFIG_VP8_ENCODER) += vp8cx_set_ref.c
vp8cx_set_ref.GUID                  = C5E31F7F-96F6-48BD-BD3E-10EBF6E8057A
vp8cx_set_ref.DESCRIPTION           = VP8 set encoder reference frame


ifeq ($(CONFIG_MULTI_RES_ENCODING),yes)
GEN_EXAMPLES-$(CONFIG_VP8_DECODER) += vp8_multi_resolution_encoder.c
vp8_multi_resolution_encoder.SRCS       += $(LIBYUV_SRCS)
vp8_multi_resolution_encoder.GUID        = 04f8738e-63c8-423b-90fa-7c2703a374de
vp8_multi_resolution_encoder.DESCRIPTION = VP8 Multiple-resolution Encoding
endif

# Handle extra library flags depending on codec configuration

# We should not link to math library (libm) on RVCT
# when building for bare-metal targets
ifeq ($(CONFIG_OS_SUPPORT), yes)
CODEC_EXTRA_LIBS-$(CONFIG_VP8)         += m
CODEC_EXTRA_LIBS-$(CONFIG_VP9)         += m
else
    ifeq ($(CONFIG_GCC), yes)
    CODEC_EXTRA_LIBS-$(CONFIG_VP8)         += m
    CODEC_EXTRA_LIBS-$(CONFIG_VP9)         += m
    endif
endif
#
# End of specified files. The rest of the build rules should happen
# automagically from here.
#


# Examples need different flags based on whether we're building
# from an installed tree or a version controlled tree. Determine
# the proper paths.
ifeq ($(HAVE_ALT_TREE_LAYOUT),yes)
    LIB_PATH := $(SRC_PATH_BARE)/../lib
    INC_PATH := $(SRC_PATH_BARE)/../include
else
    LIB_PATH-yes                     += $(if $(BUILD_PFX),$(BUILD_PFX),.)
    INC_PATH-$(CONFIG_VP8_DECODER)   += $(SRC_PATH_BARE)/vp8
    INC_PATH-$(CONFIG_VP8_ENCODER)   += $(SRC_PATH_BARE)/vp8
    INC_PATH-$(CONFIG_VP9_DECODER)   += $(SRC_PATH_BARE)/vp9
    INC_PATH-$(CONFIG_VP9_ENCODER)   += $(SRC_PATH_BARE)/vp9
    LIB_PATH := $(call enabled,LIB_PATH)
    INC_PATH := $(call enabled,INC_PATH)
endif
INTERNAL_CFLAGS = $(addprefix -I,$(INC_PATH))
INTERNAL_LDFLAGS += $(addprefix -L,$(LIB_PATH))


# Expand list of selected examples to build (as specified above)
UTILS           = $(call enabled,UTILS)
GEN_EXAMPLES    = $(call enabled,GEN_EXAMPLES)
ALL_EXAMPLES    = $(UTILS) $(GEN_EXAMPLES)
UTIL_SRCS       = $(foreach ex,$(UTILS),$($(ex:.c=).SRCS))
ALL_SRCS        = $(foreach ex,$(ALL_EXAMPLES),$($(ex:.c=).SRCS))
CODEC_EXTRA_LIBS=$(sort $(call enabled,CODEC_EXTRA_LIBS))


# Expand all example sources into a variable containing all sources
# for that example (not just them main one specified in UTILS/GEN_EXAMPLES)
# and add this file to the list (for MSVS workspace generation)
$(foreach ex,$(ALL_EXAMPLES),$(eval $(ex:.c=).SRCS += $(ex) examples.mk))


# If this is a universal (fat) binary, then all the subarchitectures have
# already been built and our job is to stitch them together. The
# BUILD_OBJS variable indicates whether we should be building
# (compiling, linking) the library. The LIPO_OBJS variable indicates
# that we're stitching.
$(eval $(if $(filter universal%,$(TOOLCHAIN)),LIPO_OBJS,BUILD_OBJS):=yes)


# Create build/install dependencies for all examples. The common case
# is handled here. The MSVS case is handled below.
NOT_MSVS = $(if $(CONFIG_MSVS),,yes)
DIST-BINS-$(NOT_MSVS)      += $(addprefix bin/,$(ALL_EXAMPLES:.c=$(EXE_SFX)))
INSTALL-BINS-$(NOT_MSVS)   += $(addprefix bin/,$(UTILS:.c=$(EXE_SFX)))
DIST-SRCS-yes              += $(ALL_SRCS)
INSTALL-SRCS-yes           += $(UTIL_SRCS)
OBJS-$(NOT_MSVS)           += $(if $(BUILD_OBJS),$(call objs,$(ALL_SRCS)))
BINS-$(NOT_MSVS)           += $(addprefix $(BUILD_PFX),$(ALL_EXAMPLES:.c=$(EXE_SFX)))


# Instantiate linker template for all examples.
CODEC_LIB=$(if $(CONFIG_DEBUG_LIBS),vpx_g,vpx)
SHARED_LIB_SUF=$(if $(filter darwin%,$(TGT_OS)),.dylib,.so)
CODEC_LIB_SUF=$(if $(CONFIG_SHARED),$(SHARED_LIB_SUF),.a)
$(foreach bin,$(BINS-yes),\
    $(if $(BUILD_OBJS),$(eval $(bin):\
        $(LIB_PATH)/lib$(CODEC_LIB)$(CODEC_LIB_SUF)))\
    $(if $(BUILD_OBJS),$(eval $(call linker_template,$(bin),\
        $(call objs,$($(notdir $(bin:$(EXE_SFX)=)).SRCS)) \
        -l$(CODEC_LIB) $(addprefix -l,$(CODEC_EXTRA_LIBS))\
        )))\
    $(if $(LIPO_OBJS),$(eval $(call lipo_bin_template,$(bin))))\
    )


# Rules to generate the GEN_EXAMPLES sources
.PRECIOUS: %.c
CLEAN-OBJS += $(GEN_EXAMPLES)
%.c: examples/%.c
	@echo "    [EXAMPLE] $@"
	@cp $< $@


# The following pairs define a mapping of locations in the distribution
# tree to locations in the source/build trees.
INSTALL_MAPS += src/%.c   %.c
INSTALL_MAPS += src/%     $(SRC_PATH_BARE)/%
INSTALL_MAPS += bin/%     %
INSTALL_MAPS += %         %


# Set up additional MSVS environment
ifeq ($(CONFIG_MSVS),yes)
CODEC_LIB=$(if $(CONFIG_SHARED),vpx,$(if $(CONFIG_STATIC_MSVCRT),vpxmt,vpxmd))
# This variable uses deferred expansion intentionally, since the results of
# $(wildcard) may change during the course of the Make.
VS_PLATFORMS = $(foreach d,$(wildcard */Release/$(CODEC_LIB).lib),$(word 1,$(subst /, ,$(d))))
INSTALL_MAPS += $(foreach p,$(VS_PLATFORMS),bin/$(p)/%  $(p)/Release/%)
endif

# Build Visual Studio Projects. We use a template here to instantiate
# explicit rules rather than using an implicit rule because we want to
# leverage make's VPATH searching rather than specifying the paths on
# each file in ALL_EXAMPLES. This has the unfortunate side effect that
# touching the source files trigger a rebuild of the project files
# even though there is no real dependency there (the dependency is on
# the makefiles). We may want to revisit this.
define vcproj_template
$(1): $($(1:.$(VCPROJ_SFX)=).SRCS) vpx.$(VCPROJ_SFX)
	@echo "    [vcproj] $$@"
	$$(GEN_VCPROJ)\
            --exe\
            --target=$$(TOOLCHAIN)\
            --name=$$(@:.$(VCPROJ_SFX)=)\
            --ver=$$(CONFIG_VS_VERSION)\
            --proj-guid=$$($$(@:.$(VCPROJ_SFX)=).GUID)\
            $$(if $$(CONFIG_STATIC_MSVCRT),--static-crt) \
            --out=$$@ $$(INTERNAL_CFLAGS) $$(CFLAGS) \
            $$(INTERNAL_LDFLAGS) $$(LDFLAGS) -l$$(CODEC_LIB) $$^
endef
PROJECTS-$(CONFIG_MSVS) += $(ALL_EXAMPLES:.c=.$(VCPROJ_SFX))
INSTALL-BINS-$(CONFIG_MSVS) += $(foreach p,$(VS_PLATFORMS),\
                               $(addprefix bin/$(p)/,$(ALL_EXAMPLES:.c=.exe)))
$(foreach proj,$(call enabled,PROJECTS),\
    $(eval $(call vcproj_template,$(proj))))