1# This top-level build file is included by all modules that implement 2# the hardware OpenGL ES emulation for Android. 3# 4# We use it to ensure that all sub-Makefiles are included in the right 5# order for various variable definitions and usage to happen in the correct 6# order. 7# 8 9# The following macros are used to start a new GLES emulation module. 10# 11# This will define LOCAL_MODULE as $1, plus a few other variables 12# needed by the build system (e.g. LOCAL_MODULE_TAGS, LOCAL_MODULE_CLASS...) 13# 14# NOTE: You still need to define LOCAL_PATH before this 15# 16# Usage example: 17# 18# $(call emugl-begin-static-library,<name>) 19# LOCAL_SRC_FILES := .... 20# LOCAL_C_INCLUDES += .... 21# $(call emugl-end-module) 22# 23emugl-begin-static-library = $(call emugl-begin-module,$1,STATIC_LIBRARY) 24emugl-begin-shared-library = $(call emugl-begin-module,$1,SHARED_LIBRARY) 25 26# Internal list of all declared modules (used for sanity checking) 27_emugl_modules := 28_emugl_HOST_modules := 29 30# do not use directly, see functions above instead 31emugl-begin-module = \ 32 $(eval include $(CLEAR_VARS)) \ 33 $(eval LOCAL_MODULE := $1) \ 34 $(eval LOCAL_MODULE_CLASS := $(patsubst HOST_%,%,$(patsubst %EXECUTABLE,%EXECUTABLES,$(patsubst %LIBRARY,%LIBRARIES,$2)))) \ 35 $(eval LOCAL_IS_HOST_MODULE := $(if $3,true,))\ 36 $(eval LOCAL_C_INCLUDES := $(EMUGL_COMMON_INCLUDES)) \ 37 $(eval LOCAL_CFLAGS := $(EMUGL_COMMON_CFLAGS)) \ 38 $(eval _EMUGL_INCLUDE_TYPE := $(BUILD_$2)) \ 39 $(call _emugl-init-module,$1,$2,$3) 40 41# Used to end a module definition, see function definitions above 42emugl-end-module = \ 43 $(eval include $(_EMUGL_INCLUDE_TYPE))\ 44 $(eval _EMUGL_INCLUDE_TYPE :=) \ 45 $(eval _emugl_$(_emugl_HOST)modules += $(_emugl_MODULE))\ 46 $(if $(EMUGL_DEBUG),$(call emugl-dump-module)) 47 48# Managing module exports and imports. 49# 50# A module can 'import' another module, by calling emugl-import. This will 51# make the current LOCAL_MODULE inherit various definitions exported from 52# the imported module. 53# 54# Module exports are defined by calling emugl-export. Here is an example: 55# 56# $(call emugl-begin-static-library,foo) 57# LOCAL_SRC_FILES := foo.c 58# $(call emugl-export,C_INCLUDES,$(LOCAL_PATH)) 59# $(call emugl-export,SHARED_LIBRARIES,libcutils) 60# $(call emugl-end-module) 61# 62# $(call emugl-begin-shared-library,bar) 63# LOCAL_SRC_FILES := bar.cpp 64# $(call emugl-import,foo) 65# $(call emugl-end-module) 66# 67# Here, we define a static library named 'foo' which exports an include 68# path and a shared library requirement, and a shared library 'bar' which 69# imports it. 70# 71# What this means is that: 72# 73# - 'bar' will automatically inherit foo's LOCAL_PATH in its LOCAL_C_INCLUDES 74# - 'bar' will automatically inherit libcutils in its own LOCAL_SHARED_LIBRARIES 75# 76# Note that order of declaration matters. If 'foo' is defined after 'bar' in 77# the example above, nothing will work correctly because dependencies are 78# computed at import time. 79# 80# 81# IMPORTANT: Imports are transitive, i.e. when module A imports B, 82# it automatically imports anything imported by B too. 83 84# This is the list of recognized export types we support for now. 85EMUGL_EXPORT_TYPES := \ 86 CFLAGS \ 87 LDLIBS \ 88 LDFLAGS \ 89 C_INCLUDES \ 90 SHARED_LIBRARIES \ 91 STATIC_LIBRARIES \ 92 ADDITIONAL_DEPENDENCIES 93 94# Initialize a module in our database 95# $1: Module name 96# $2: Module type 97# $3: "HOST" for a host module, empty for a target one. 98_emugl-init-module = \ 99 $(eval _emugl_HOST := $(if $3,HOST_,))\ 100 $(eval _emugl_MODULE := $(_emugl_HOST)$1)\ 101 $(if $(filter $(_emugl_$(_emugl_HOST)modules),$(_emugl_MODULE)),\ 102 $(error There is already a $(if $3,host,) module named $1!)\ 103 )\ 104 $(eval _mod = $(_emugl_MODULE)) \ 105 $(eval _emugl.$(_mod).type := $(patsubst HOST_%,%,$2))\ 106 $(eval _emugl.$(_mod).imports :=) \ 107 $(eval _emugl,$(_mod).moved :=) \ 108 $(foreach _type,$(EMUGL_EXPORT_TYPES),\ 109 $(eval _emugl.$(_mod).export.$(_type) :=)\ 110 ) 111 112# Called to indicate that a module exports a given local variable for its 113# users. This also adds this to LOCAL_$1 114# $1: Local variable type (e.g. CFLAGS, LDLIBS, etc...) 115# $2: Value(s) to append to the export 116emugl-export = \ 117 $(eval _emugl.$(_emugl_MODULE).export.$1 += $2)\ 118 $(eval LOCAL_$1 := $2 $(LOCAL_$1)) 119 120emugl-export-outer = \ 121 $(eval _emugl.$(_emugl_MODULE).export.$1 += $2) 122 123# Called to indicate that a module imports the exports of another module 124# $1: list of modules to import 125# 126emugl-import = \ 127 $(foreach _imod,$1,\ 128 $(call _emugl-module-import,$(_emugl_HOST)$(_imod))\ 129 ) 130 131_emugl-module-import = \ 132 $(eval _mod := $(_emugl_MODULE))\ 133 $(if $(filter-out $(_emugl_$(_emugl_HOST)modules),$1),\ 134 $(info Unknown imported emugles module: $1)\ 135 $(if $(_emugl_HOST),\ 136 $(eval _names := $(patsubst HOST_%,%,$(_emugl_HOST_modules))),\ 137 $(eval _names := $(_emugl_modules))\ 138 )\ 139 $(info Please one of the following names: $(_names))\ 140 $(error Aborting)\ 141 )\ 142 $(if $(filter-out $(_emugl.$(_mod).imports),$1),\ 143 $(eval _emugl.$(_mod).imports += $1)\ 144 $(foreach _sub,$(_emugl.$1.imports),\ 145 $(call _emugl-module-import,$(_sub))\ 146 )\ 147 $(foreach _type,$(EMUGL_EXPORT_TYPES),\ 148 $(eval LOCAL_$(_type) := $(_emugl.$1.export.$(_type)) $(LOCAL_$(_type)))\ 149 )\ 150 $(if $(filter EXECUTABLE SHARED_LIBRARY,$(_emugl.$(_emugl_MODULE).type)),\ 151 $(if $(filter STATIC_LIBRARY,$(_emugl.$1.type)),\ 152 $(eval LOCAL_STATIC_LIBRARIES := $(1:HOST_%=%) $(LOCAL_STATIC_LIBRARIES))\ 153 )\ 154 $(if $(filter SHARED_LIBRARY,$(_emugl.$1.type)),\ 155 $(if $(_emugl.$1.moved),,\ 156 $(eval LOCAL_SHARED_LIBRARIES := $(1:HOST_%=%) $(LOCAL_SHARED_LIBRARIES))\ 157 )\ 158 )\ 159 )\ 160 ) 161 162_emugl-dump-list = \ 163 $(foreach _list_item,$(strip $1),$(info . $(_list_item))) 164 165emugl-dump-module = \ 166 $(info MODULE=$(_emugl_MODULE))\ 167 $(info . HOST=$(_emugl_HOST))\ 168 $(info . TYPE=$(_emugl.$(_emugl_MODULE).type))\ 169 $(info . IMPORTS=$(_emugl.$(_emugl_MODULE).imports))\ 170 $(foreach _type,$(EMUGL_EXPORT_TYPES),\ 171 $(if $(filter C_INCLUDES ADDITIONAL_DEPENDENCIES,$(_type)),\ 172 $(info . EXPORT.$(_type) :=)\ 173 $(call _emugl-dump-list,$(_emugl.$(_emugl_MODULE).export.$(_type)))\ 174 $(info . LOCAL_$(_type) :=)\ 175 $(call _emugl-dump-list,$(LOCAL_$(_type)))\ 176 ,\ 177 $(info . EXPORT.$(_type) := $(strip $(_emugl.$(_emugl_MODULE).export.$(_type))))\ 178 $(info . LOCAL_$(_type) := $(strip $(LOCAL_$(_type))))\ 179 )\ 180 )\ 181 $(info . LOCAL_SRC_FILES := $(LOCAL_SRC_FILES))\ 182 183# This function can be called to generate the wrapper source files. 184# LOCAL_MODULE and LOCAL_MODULE_CLASS must be defined or the build will abort. 185# Source files will be stored in the local intermediates directory that will 186# be automatically added to your LOCAL_C_INCLUDES. 187# Usage: 188# $(call emugl-gen-wrapper,<input-dir>,<basename>) 189# 190emugl-gen-wrapper = \ 191 $(eval _emugl_out := $(call local-intermediates-dir)) \ 192 $(call emugl-gen-wrapper-generic,$(_emugl_out),$1,$2) \ 193 $(call emugl-export,C_INCLUDES,$(_emugl_out)) 194 195# DO NOT CALL DIRECTLY, USE emugl-gen-wrapper instead. 196# 197# The following function can be called to generate GL library wrapper 198# Usage is: 199# 200# $(call emugl-gen-wrapper-generic,<dst-dir>,<src-dir>,<basename>) 201# 202# <dst-dir> is the destination directory where the generated sources are stored 203# <src-dir> is the source directory where to find <basename>.attrib, etc.. 204# <basename> is the emugen basename (see host/tools/emugen/README) 205# 206emugl-gen-wrapper-generic = $(eval $(emugl-gen-wrapper-generic-ev)) 207 208define emugl-gen-wrapper-generic-ev 209_emugl_wrap := $$1/$$3 210_emugl_src := $$2/$$3 211GEN := $$(_emugl_wrap)_wrapper_entry.cpp \ 212 $$(_emugl_wrap)_wrapper_context.cpp \ 213 $$(_emugl_wrap)_wrapper_context.h \ 214 $$(_emugl_wrap)_wrapper_proc.h 215 216$$(GEN): PRIVATE_PATH := $$(LOCAL_PATH) 217$$(GEN): PRIVATE_CUSTOM_TOOL := $$(EMUGL_EMUGEN) -W $$1 -i $$2 $$3 218$$(GEN): $$(EMUGL_EMUGEN) $$(_emugl_src).attrib $$(_emugl_src).in $$(_emugl_src).types 219 $$(transform-generated-source) 220 221$$(call emugl-export,ADDITIONAL_DEPENDENCIES,$$(GEN)) 222LOCAL_GENERATED_SOURCES += $$(GEN) 223LOCAL_C_INCLUDES += $$1 224 225#ifneq ($$(HOST_OS),windows) 226$$(call emugl-export,LDFLAGS,-ldl) 227#endif 228 229endef 230 231# Call this function when your shared library must be placed in a non-standard 232# library path (i.e. not under /system/lib 233# $1: library sub-path,relative to /system/lib 234# For example: $(call emugl-set-shared-library-subpath,egl) 235emugl-set-shared-library-subpath = \ 236 $(eval LOCAL_MODULE_RELATIVE_PATH := $1)\ 237 $(eval _emugl.$(LOCAL_MODULE).moved := true) 238