1import cffi
  2import os, os.path
  3import shlex
  4import subprocess
  5import sys
  6
  7ffi = cffi.FFI()
  8pydir = os.path.dirname(os.path.abspath(__file__))
  9srcdir = os.path.join(pydir, "..", "..")
 10incdir = os.path.join(pydir, "..", "..", "..", "include")
 11bindir = os.environ.get("BINDIR", os.path.join(os.getcwd(), ".."))
 12
 13cpp = shlex.split(os.environ.get("CPP", "cc -E"))
 14cppflags = shlex.split(os.environ.get("CPPFLAGS", ""))
 15if __name__ == "__main__":
 16    cppflags.extend(sys.argv[1:])
 17cppflags.extend(["-I" + incdir, "-I" + srcdir, "-I" + bindir])
 18
 19ffi.set_source("mgba._pylib", """
 20#include "flags.h"
 21#define OPAQUE_THREADING
 22#include <mgba-util/common.h>
 23#include <mgba/core/core.h>
 24#include <mgba/core/log.h>
 25#include <mgba/core/mem-search.h>
 26#include <mgba/core/thread.h>
 27#include <mgba/core/tile-cache.h>
 28#include <mgba/core/version.h>
 29#include <mgba/debugger/debugger.h>
 30#include <mgba/internal/arm/arm.h>
 31#include <mgba/internal/gba/gba.h>
 32#include <mgba/internal/gba/input.h>
 33#include <mgba/internal/gba/renderers/tile-cache.h>
 34#include <mgba/internal/lr35902/lr35902.h>
 35#include <mgba/internal/gb/gb.h>
 36#include <mgba/internal/gb/renderers/tile-cache.h>
 37#include <mgba-util/png-io.h>
 38#include <mgba-util/vfs.h>
 39
 40#define PYEXPORT
 41#include "platform/python/log.h"
 42#include "platform/python/sio.h"
 43#include "platform/python/vfs-py.h"
 44#undef PYEXPORT
 45""", include_dirs=[incdir, srcdir],
 46     extra_compile_args=cppflags,
 47     libraries=["mgba"],
 48     library_dirs=[bindir],
 49     sources=[os.path.join(pydir, path) for path in ["vfs-py.c", "log.c", "sio.c"]])
 50
 51preprocessed = subprocess.check_output(cpp + ["-fno-inline", "-P"] + cppflags + [os.path.join(pydir, "_builder.h")], universal_newlines=True)
 52
 53lines = []
 54for line in preprocessed.splitlines():
 55    line = line.strip()
 56    if line.startswith('#'):
 57        continue
 58    lines.append(line)
 59ffi.cdef('\n'.join(lines))
 60
 61preprocessed = subprocess.check_output(cpp + ["-fno-inline", "-P"] + cppflags + [os.path.join(pydir, "lib.h")], universal_newlines=True)
 62
 63lines = []
 64for line in preprocessed.splitlines():
 65    line = line.strip()
 66    if line.startswith('#'):
 67        continue
 68    lines.append(line)
 69ffi.embedding_api('\n'.join(lines))
 70
 71ffi.embedding_init_code("""
 72    from mgba._pylib import ffi
 73    debugger = None
 74    pendingCode = []
 75
 76    @ffi.def_extern()
 77    def mPythonSetDebugger(_debugger):
 78        from mgba.debugger import NativeDebugger
 79        global debugger
 80        debugger = _debugger and NativeDebugger(_debugger)
 81
 82    @ffi.def_extern()
 83    def mPythonLoadScript(name, vf):
 84        from mgba.vfs import VFile
 85        vf = VFile(vf)
 86        name = ffi.string(name)
 87        source = vf.readAll().decode('utf-8')
 88        try:
 89            code = compile(source, name, 'exec')
 90            pendingCode.append(code)
 91        except:
 92            return False
 93        return True
 94
 95    @ffi.def_extern()
 96    def mPythonRunPending():
 97        global pendingCode
 98        for code in pendingCode:
 99            exec(code)
100        pendingCode = []
101""")
102
103if __name__ == "__main__":
104    ffi.emit_c_code("lib.c")