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 # 23 emugl-begin-static-library = $(call emugl-begin-module,$1,STATIC_LIBRARY) 24 emugl-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 31 emugl-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 LOCAL_PRELINK_MODULE := false)\ 39 $(eval _EMUGL_INCLUDE_TYPE := $(BUILD_$2)) \ 40 $(call _emugl-init-module,$1,$2,$3) 41 42 # Used to end a module definition, see function definitions above 43 emugl-end-module = \ 44 $(eval include $(_EMUGL_INCLUDE_TYPE))\ 45 $(eval _EMUGL_INCLUDE_TYPE :=) \ 46 $(eval _emugl_$(_emugl_HOST)modules += $(_emugl_MODULE))\ 47 $(if $(EMUGL_DEBUG),$(call emugl-dump-module)) 48 49 # Managing module exports and imports. 50 # 51 # A module can 'import' another module, by calling emugl-import. This will 52 # make the current LOCAL_MODULE inherit various definitions exported from 53 # the imported module. 54 # 55 # Module exports are defined by calling emugl-export. Here is an example: 56 # 57 # $(call emugl-begin-static-library,foo) 58 # LOCAL_SRC_FILES := foo.c 59 # $(call emugl-export,C_INCLUDES,$(LOCAL_PATH)) 60 # $(call emugl-export,SHARED_LIBRARIES,libcutils) 61 # $(call emugl-end-module) 62 # 63 # $(call emugl-begin-shared-library,bar) 64 # LOCAL_SRC_FILES := bar.cpp 65 # $(call emugl-import,foo) 66 # $(call emugl-end-module) 67 # 68 # Here, we define a static library named 'foo' which exports an include 69 # path and a shared library requirement, and a shared library 'bar' which 70 # imports it. 71 # 72 # What this means is that: 73 # 74 # - 'bar' will automatically inherit foo's LOCAL_PATH in its LOCAL_C_INCLUDES 75 # - 'bar' will automatically inherit libcutils in its own LOCAL_SHARED_LIBRARIES 76 # 77 # Note that order of declaration matters. If 'foo' is defined after 'bar' in 78 # the example above, nothing will work correctly because dependencies are 79 # computed at import time. 80 # 81 # 82 # IMPORTANT: Imports are transitive, i.e. when module A imports B, 83 # it automatically imports anything imported by B too. 84 85 # This is the list of recognized export types we support for now. 86 EMUGL_EXPORT_TYPES := \ 87 CFLAGS \ 88 LDLIBS \ 89 LDFLAGS \ 90 C_INCLUDES \ 91 SHARED_LIBRARIES \ 92 STATIC_LIBRARIES \ 93 ADDITIONAL_DEPENDENCIES 94 95 # Initialize a module in our database 96 # $1: Module name 97 # $2: Module type 98 # $3: "HOST" for a host module, empty for a target one. 99 _emugl-init-module = \ 100 $(eval _emugl_HOST := $(if $3,HOST_,))\ 101 $(eval _emugl_MODULE := $(_emugl_HOST)$1)\ 102 $(if $(filter $(_emugl_$(_emugl_HOST)modules),$(_emugl_MODULE)),\ 103 $(error There is already a $(if $3,host,) module named $1!)\ 104 )\ 105 $(eval _mod = $(_emugl_MODULE)) \ 106 $(eval _emugl.$(_mod).type := $(patsubst HOST_%,%,$2))\ 107 $(eval _emugl.$(_mod).imports :=) \ 108 $(eval _emugl,$(_mod).moved :=) \ 109 $(foreach _type,$(EMUGL_EXPORT_TYPES),\ 110 $(eval _emugl.$(_mod).export.$(_type) :=)\ 111 ) 112 113 # Called to indicate that a module exports a given local variable for its 114 # users. This also adds this to LOCAL_$1 115 # $1: Local variable type (e.g. CFLAGS, LDLIBS, etc...) 116 # $2: Value(s) to append to the export 117 emugl-export = \ 118 $(eval _emugl.$(_emugl_MODULE).export.$1 += $2)\ 119 $(eval LOCAL_$1 := $2 $(LOCAL_$1)) 120 121 emugl-export-outer = \ 122 $(eval _emugl.$(_emugl_MODULE).export.$1 += $2) 123 124 # Called to indicate that a module imports the exports of another module 125 # $1: list of modules to import 126 # 127 emugl-import = \ 128 $(foreach _imod,$1,\ 129 $(call _emugl-module-import,$(_emugl_HOST)$(_imod))\ 130 ) 131 132 _emugl-module-import = \ 133 $(eval _mod := $(_emugl_MODULE))\ 134 $(if $(filter-out $(_emugl_$(_emugl_HOST)modules),$1),\ 135 $(info Unknown imported emugles module: $1)\ 136 $(if $(_emugl_HOST),\ 137 $(eval _names := $(patsubst HOST_%,%,$(_emugl_HOST_modules))),\ 138 $(eval _names := $(_emugl_modules))\ 139 )\ 140 $(info Please one of the following names: $(_names))\ 141 $(error Aborting)\ 142 )\ 143 $(if $(filter-out $(_emugl.$(_mod).imports),$1),\ 144 $(eval _emugl.$(_mod).imports += $1)\ 145 $(foreach _sub,$(_emugl.$1.imports),\ 146 $(call _emugl-module-import,$(_sub))\ 147 )\ 148 $(foreach _type,$(EMUGL_EXPORT_TYPES),\ 149 $(eval LOCAL_$(_type) := $(_emugl.$1.export.$(_type)) $(LOCAL_$(_type)))\ 150 )\ 151 $(if $(filter EXECUTABLE SHARED_LIBRARY,$(_emugl.$(_emugl_MODULE).type)),\ 152 $(if $(filter STATIC_LIBRARY,$(_emugl.$1.type)),\ 153 $(eval LOCAL_STATIC_LIBRARIES := $(1:HOST_%=%) $(LOCAL_STATIC_LIBRARIES))\ 154 )\ 155 $(if $(filter SHARED_LIBRARY,$(_emugl.$1.type)),\ 156 $(if $(_emugl.$1.moved),,\ 157 $(eval LOCAL_SHARED_LIBRARIES := $(1:HOST_%=%) $(LOCAL_SHARED_LIBRARIES))\ 158 )\ 159 )\ 160 )\ 161 ) 162 163 _emugl-dump-list = \ 164 $(foreach _list_item,$(strip $1),$(info . $(_list_item))) 165 166 emugl-dump-module = \ 167 $(info MODULE=$(_emugl_MODULE))\ 168 $(info . HOST=$(_emugl_HOST))\ 169 $(info . TYPE=$(_emugl.$(_emugl_MODULE).type))\ 170 $(info . IMPORTS=$(_emugl.$(_emugl_MODULE).imports))\ 171 $(foreach _type,$(EMUGL_EXPORT_TYPES),\ 172 $(if $(filter C_INCLUDES ADDITIONAL_DEPENDENCIES,$(_type)),\ 173 $(info . EXPORT.$(_type) :=)\ 174 $(call _emugl-dump-list,$(_emugl.$(_emugl_MODULE).export.$(_type)))\ 175 $(info . LOCAL_$(_type) :=)\ 176 $(call _emugl-dump-list,$(LOCAL_$(_type)))\ 177 ,\ 178 $(info . EXPORT.$(_type) := $(strip $(_emugl.$(_emugl_MODULE).export.$(_type))))\ 179 $(info . LOCAL_$(_type) := $(strip $(LOCAL_$(_type))))\ 180 )\ 181 )\ 182 $(info . LOCAL_SRC_FILES := $(LOCAL_SRC_FILES))\ 183 184 # This function can be called to generate the wrapper source files. 185 # LOCAL_MODULE and LOCAL_MODULE_CLASS must be defined or the build will abort. 186 # Source files will be stored in the local intermediates directory that will 187 # be automatically added to your LOCAL_C_INCLUDES. 188 # Usage: 189 # $(call emugl-gen-wrapper,<input-dir>,<basename>) 190 # 191 emugl-gen-wrapper = \ 192 $(eval _emugl_out := $(call local-intermediates-dir)) \ 193 $(call emugl-gen-wrapper-generic,$(_emugl_out),$1,$2) \ 194 $(call emugl-export,C_INCLUDES,$(_emugl_out)) 195 196 # DO NOT CALL DIRECTLY, USE emugl-gen-wrapper instead. 197 # 198 # The following function can be called to generate GL library wrapper 199 # Usage is: 200 # 201 # $(call emugl-gen-wrapper-generic,<dst-dir>,<src-dir>,<basename>) 202 # 203 # <dst-dir> is the destination directory where the generated sources are stored 204 # <src-dir> is the source directory where to find <basename>.attrib, etc.. 205 # <basename> is the emugen basename (see host/tools/emugen/README) 206 # 207 emugl-gen-wrapper-generic = $(eval $(emugl-gen-wrapper-generic-ev)) 208 209 define emugl-gen-wrapper-generic-ev 210 _emugl_wrap := $$1/$$3 211 _emugl_src := $$2/$$3 212 GEN := $$(_emugl_wrap)_wrapper_entry.cpp \ 213 $$(_emugl_wrap)_wrapper_context.cpp \ 214 $$(_emugl_wrap)_wrapper_context.h \ 215 $$(_emugl_wrap)_wrapper_proc.h 216 217 $$(GEN): PRIVATE_PATH := $$(LOCAL_PATH) 218 $$(GEN): PRIVATE_CUSTOM_TOOL := $$(EMUGL_EMUGEN) -W $$1 -i $$2 $$3 219 $$(GEN): $$(EMUGL_EMUGEN) $$(_emugl_src).attrib $$(_emugl_src).in $$(_emugl_src).types 220 $$(transform-generated-source) 221 222 $$(call emugl-export,ADDITIONAL_DEPENDENCIES,$$(GEN)) 223 LOCAL_GENERATED_SOURCES += $$(GEN) 224 LOCAL_C_INCLUDES += $$1 225 226 #ifneq ($$(HOST_OS),windows) 227 $$(call emugl-export,LDFLAGS,-ldl) 228 #endif 229 230 endef 231 232 # Call this function when your shared library must be placed in a non-standard 233 # library path (i.e. not under /system/lib 234 # $1: library sub-path,relative to /system/lib 235 # For example: $(call emugl-set-shared-library-subpath,egl) 236 emugl-set-shared-library-subpath = \ 237 $(eval LOCAL_MODULE_RELATIVE_PATH := $1)\ 238 $(eval _emugl.$(LOCAL_MODULE).moved := true) 239
