--- /dev/null
+# This top-level build file is included by all modules that implement
+# the hardware OpenGL ES emulation for Android.
+#
+# We use it to ensure that all sub-Makefiles are included in the right
+# order for various variable definitions and usage to happen in the correct
+# order.
+#
+
+# The following macros are used to start a new GLES emulation module.
+#
+# This will define LOCAL_MODULE as $1, plus a few other variables
+# needed by the build system (e.g. LOCAL_MODULE_TAGS, LOCAL_MODULE_CLASS...)
+#
+# NOTE: You still need to define LOCAL_PATH before this
+#
+# Usage example:
+#
+# $(call emugl-begin-static-library,<name>)
+# LOCAL_SRC_FILES := ....
+# LOCAL_C_INCLUDES += ....
+# $(call emugl-end-module)
+#
+emugl-begin-static-library = $(call emugl-begin-module,$1,STATIC_LIBRARY)
+emugl-begin-shared-library = $(call emugl-begin-module,$1,SHARED_LIBRARY)
+
+# Internal list of all declared modules (used for sanity checking)
+_emugl_modules :=
+_emugl_HOST_modules :=
+
+# do not use directly, see functions above instead
+emugl-begin-module = \
+ $(eval include $(CLEAR_VARS)) \
+ $(eval LOCAL_MODULE := $1) \
+ $(eval LOCAL_MODULE_CLASS := $(patsubst HOST_%,%,$(patsubst %EXECUTABLE,%EXECUTABLES,$(patsubst %LIBRARY,%LIBRARIES,$2)))) \
+ $(eval LOCAL_IS_HOST_MODULE := $(if $3,true,))\
+ $(eval LOCAL_C_INCLUDES := $(EMUGL_COMMON_INCLUDES)) \
+ $(eval LOCAL_CFLAGS := $(EMUGL_COMMON_CFLAGS)) \
+ $(eval _EMUGL_INCLUDE_TYPE := $(BUILD_$2)) \
+ $(call _emugl-init-module,$1,$2,$3)
+
+# Used to end a module definition, see function definitions above
+emugl-end-module = \
+ $(eval include $(_EMUGL_INCLUDE_TYPE))\
+ $(eval _EMUGL_INCLUDE_TYPE :=) \
+ $(eval _emugl_$(_emugl_HOST)modules += $(_emugl_MODULE))\
+ $(if $(EMUGL_DEBUG),$(call emugl-dump-module))
+
+# Managing module exports and imports.
+#
+# A module can 'import' another module, by calling emugl-import. This will
+# make the current LOCAL_MODULE inherit various definitions exported from
+# the imported module.
+#
+# Module exports are defined by calling emugl-export. Here is an example:
+#
+# $(call emugl-begin-static-library,foo)
+# LOCAL_SRC_FILES := foo.c
+# $(call emugl-export,C_INCLUDES,$(LOCAL_PATH))
+# $(call emugl-export,SHARED_LIBRARIES,libcutils)
+# $(call emugl-end-module)
+#
+# $(call emugl-begin-shared-library,bar)
+# LOCAL_SRC_FILES := bar.cpp
+# $(call emugl-import,foo)
+# $(call emugl-end-module)
+#
+# Here, we define a static library named 'foo' which exports an include
+# path and a shared library requirement, and a shared library 'bar' which
+# imports it.
+#
+# What this means is that:
+#
+# - 'bar' will automatically inherit foo's LOCAL_PATH in its LOCAL_C_INCLUDES
+# - 'bar' will automatically inherit libcutils in its own LOCAL_SHARED_LIBRARIES
+#
+# Note that order of declaration matters. If 'foo' is defined after 'bar' in
+# the example above, nothing will work correctly because dependencies are
+# computed at import time.
+#
+#
+# IMPORTANT: Imports are transitive, i.e. when module A imports B,
+# it automatically imports anything imported by B too.
+
+# This is the list of recognized export types we support for now.
+EMUGL_EXPORT_TYPES := \
+ CFLAGS \
+ LDLIBS \
+ LDFLAGS \
+ C_INCLUDES \
+ SHARED_LIBRARIES \
+ STATIC_LIBRARIES \
+ ADDITIONAL_DEPENDENCIES
+
+# Initialize a module in our database
+# $1: Module name
+# $2: Module type
+# $3: "HOST" for a host module, empty for a target one.
+_emugl-init-module = \
+ $(eval _emugl_HOST := $(if $3,HOST_,))\
+ $(eval _emugl_MODULE := $(_emugl_HOST)$1)\
+ $(if $(filter $(_emugl_$(_emugl_HOST)modules),$(_emugl_MODULE)),\
+ $(error There is already a $(if $3,host,) module named $1!)\
+ )\
+ $(eval _mod = $(_emugl_MODULE)) \
+ $(eval _emugl.$(_mod).type := $(patsubst HOST_%,%,$2))\
+ $(eval _emugl.$(_mod).imports :=) \
+ $(eval _emugl,$(_mod).moved :=) \
+ $(foreach _type,$(EMUGL_EXPORT_TYPES),\
+ $(eval _emugl.$(_mod).export.$(_type) :=)\
+ )
+
+# Called to indicate that a module exports a given local variable for its
+# users. This also adds this to LOCAL_$1
+# $1: Local variable type (e.g. CFLAGS, LDLIBS, etc...)
+# $2: Value(s) to append to the export
+emugl-export = \
+ $(eval _emugl.$(_emugl_MODULE).export.$1 += $2)\
+ $(eval LOCAL_$1 := $2 $(LOCAL_$1))
+
+emugl-export-outer = \
+ $(eval _emugl.$(_emugl_MODULE).export.$1 += $2)
+
+# Called to indicate that a module imports the exports of another module
+# $1: list of modules to import
+#
+emugl-import = \
+ $(foreach _imod,$1,\
+ $(call _emugl-module-import,$(_emugl_HOST)$(_imod))\
+ )
+
+_emugl-module-import = \
+ $(eval _mod := $(_emugl_MODULE))\
+ $(if $(filter-out $(_emugl_$(_emugl_HOST)modules),$1),\
+ $(info Unknown imported emugles module: $1)\
+ $(if $(_emugl_HOST),\
+ $(eval _names := $(patsubst HOST_%,%,$(_emugl_HOST_modules))),\
+ $(eval _names := $(_emugl_modules))\
+ )\
+ $(info Please one of the following names: $(_names))\
+ $(error Aborting)\
+ )\
+ $(if $(filter-out $(_emugl.$(_mod).imports),$1),\
+ $(eval _emugl.$(_mod).imports += $1)\
+ $(foreach _sub,$(_emugl.$1.imports),\
+ $(call _emugl-module-import,$(_sub))\
+ )\
+ $(foreach _type,$(EMUGL_EXPORT_TYPES),\
+ $(eval LOCAL_$(_type) := $(_emugl.$1.export.$(_type)) $(LOCAL_$(_type)))\
+ )\
+ $(if $(filter EXECUTABLE SHARED_LIBRARY,$(_emugl.$(_emugl_MODULE).type)),\
+ $(if $(filter STATIC_LIBRARY,$(_emugl.$1.type)),\
+ $(eval LOCAL_STATIC_LIBRARIES := $(1:HOST_%=%) $(LOCAL_STATIC_LIBRARIES))\
+ )\
+ $(if $(filter SHARED_LIBRARY,$(_emugl.$1.type)),\
+ $(if $(_emugl.$1.moved),,\
+ $(eval LOCAL_SHARED_LIBRARIES := $(1:HOST_%=%) $(LOCAL_SHARED_LIBRARIES))\
+ )\
+ )\
+ )\
+ )
+
+_emugl-dump-list = \
+ $(foreach _list_item,$(strip $1),$(info . $(_list_item)))
+
+emugl-dump-module = \
+ $(info MODULE=$(_emugl_MODULE))\
+ $(info . HOST=$(_emugl_HOST))\
+ $(info . TYPE=$(_emugl.$(_emugl_MODULE).type))\
+ $(info . IMPORTS=$(_emugl.$(_emugl_MODULE).imports))\
+ $(foreach _type,$(EMUGL_EXPORT_TYPES),\
+ $(if $(filter C_INCLUDES ADDITIONAL_DEPENDENCIES,$(_type)),\
+ $(info . EXPORT.$(_type) :=)\
+ $(call _emugl-dump-list,$(_emugl.$(_emugl_MODULE).export.$(_type)))\
+ $(info . LOCAL_$(_type) :=)\
+ $(call _emugl-dump-list,$(LOCAL_$(_type)))\
+ ,\
+ $(info . EXPORT.$(_type) := $(strip $(_emugl.$(_emugl_MODULE).export.$(_type))))\
+ $(info . LOCAL_$(_type) := $(strip $(LOCAL_$(_type))))\
+ )\
+ )\
+ $(info . LOCAL_SRC_FILES := $(LOCAL_SRC_FILES))\
+
+# This function can be called to generate the wrapper source files.
+# LOCAL_MODULE and LOCAL_MODULE_CLASS must be defined or the build will abort.
+# Source files will be stored in the local intermediates directory that will
+# be automatically added to your LOCAL_C_INCLUDES.
+# Usage:
+# $(call emugl-gen-wrapper,<input-dir>,<basename>)
+#
+emugl-gen-wrapper = \
+ $(eval _emugl_out := $(call local-intermediates-dir)) \
+ $(call emugl-gen-wrapper-generic,$(_emugl_out),$1,$2) \
+ $(call emugl-export,C_INCLUDES,$(_emugl_out))
+
+# DO NOT CALL DIRECTLY, USE emugl-gen-wrapper instead.
+#
+# The following function can be called to generate GL library wrapper
+# Usage is:
+#
+# $(call emugl-gen-wrapper-generic,<dst-dir>,<src-dir>,<basename>)
+#
+# <dst-dir> is the destination directory where the generated sources are stored
+# <src-dir> is the source directory where to find <basename>.attrib, etc..
+# <basename> is the emugen basename (see host/tools/emugen/README)
+#
+emugl-gen-wrapper-generic = $(eval $(emugl-gen-wrapper-generic-ev))
+
+define emugl-gen-wrapper-generic-ev
+_emugl_wrap := $$1/$$3
+_emugl_src := $$2/$$3
+GEN := $$(_emugl_wrap)_wrapper_entry.cpp \
+ $$(_emugl_wrap)_wrapper_context.cpp \
+ $$(_emugl_wrap)_wrapper_context.h \
+ $$(_emugl_wrap)_wrapper_proc.h
+
+$$(GEN): PRIVATE_PATH := $$(LOCAL_PATH)
+$$(GEN): PRIVATE_CUSTOM_TOOL := $$(EMUGL_EMUGEN) -W $$1 -i $$2 $$3
+$$(GEN): $$(EMUGL_EMUGEN) $$(_emugl_src).attrib $$(_emugl_src).in $$(_emugl_src).types
+ $$(transform-generated-source)
+
+$$(call emugl-export,ADDITIONAL_DEPENDENCIES,$$(GEN))
+LOCAL_GENERATED_SOURCES += $$(GEN)
+LOCAL_C_INCLUDES += $$1
+
+#ifneq ($$(HOST_OS),windows)
+$$(call emugl-export,LDFLAGS,-ldl)
+#endif
+
+endef
+
+# Call this function when your shared library must be placed in a non-standard
+# library path (i.e. not under /system/lib
+# $1: library sub-path,relative to /system/lib
+# For example: $(call emugl-set-shared-library-subpath,egl)
+emugl-set-shared-library-subpath = \
+ $(eval LOCAL_MODULE_RELATIVE_PATH := $1)\
+ $(eval _emugl.$(LOCAL_MODULE).moved := true)
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