Files
android_development/tools/emulator/opengl/common.mk
Jesse Hall 56513f5ff4 Move emugl system code to development.git
Because of the way the SDK and Android system images are branched,
host code that goes into the SDK tools can't live in the same
repository as code that goes into the system image. This change keeps
the emugl host code in sdk.git/emulator/opengl while moving the emugl
system code to development.git/tools/emulator/opengl.

A few changes were made beyond simply cloning the directories:

(a) Makefiles were modified to only build the relevant components. Not
    doing so would break the build due to having multiple rule
    definitions.

(b) Protocol spec files were moved from the guest encoder directories
    to the host decoder directories. The decoder must support older
    versions of the protocol, but not newer versions, so it makes
    sense to keep the latest version of the protocol spec with the
    decoder.

(c) Along with that, the encoder is now built from checked in
    generated encoder source rather than directly from the protocol
    spec.  The generated code must be updated manually. This makes it
    possible to freeze the system encoder version without freezing the
    host decoder version, and also makes it very obvious when a
    protocol changes is happening that will require special
    backwards-compatibility support in the decoder/renderer.

(d) Host-only and system-only code were removed from the repository
    where they aren't used.

(e) README and DESIGN documents were updated to reflect this split.

No actual source code was changed due to the above.

Change-Id: I2c936101ea0405b372750d36ba0f01e84d719c43
2012-06-06 09:46:29 -07:00

243 lines
8.9 KiB
Makefile

# 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_TAGS := debug) \
$(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 LOCAL_PRELINK_MODULE := false)\
$(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_PATH := $(TARGET_OUT_SHARED_LIBRARIES)/$1)\
$(eval LOCAL_UNSTRIPPED_PATH := $(TARGET_OUT_SHARED_LIBRARIES_UNSTRIPPED)/$1)\
$(eval _emugl.$(LOCAL_MODULE).moved := true)\
$(call emugl-export-outer,ADDITIONAL_DEPENDENCIES,$(LOCAL_MODULE_PATH)/$(LOCAL_MODULE)$(TARGET_SHLIB_SUFFIX))