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Lua: add script which wraps not-yet ported C functions to Lua

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@21657 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Maurus Cuelenaere 2009-07-05 15:33:08 +00:00
parent 9b1c774218
commit d755a5ac58
3 changed files with 303 additions and 363 deletions

View file

@ -30,15 +30,21 @@ else
ROCKS += $(LUA_BUILDDIR)/lua.rock
endif
$(LUA_BUILDDIR)/lua.rock: $(LUA_OBJ) $(LUA_BUILDDIR)/actions.lua $(LUA_BUILDDIR)/buttons.lua
$(LUA_BUILDDIR)/lua.rock: $(LUA_OBJ) $(LUA_BUILDDIR)/actions.lua $(LUA_BUILDDIR)/buttons.lua $(LUA_BUILDDIR)/rocklib_aux.o
$(LUA_BUILDDIR)/actions.lua: $(LUA_OBJ)
$(LUA_BUILDDIR)/actions.lua:
$(call PRINTS,GEN $(@F))$(CC) $(INCLUDES) -E $(APPSDIR)/action.h | $(LUA_SRCDIR)/action_helper.pl > $(LUA_BUILDDIR)/actions.lua
$(LUA_BUILDDIR)/buttons.lua: $(LUA_OBJ)
$(LUA_BUILDDIR)/buttons.lua:
$(SILENT)$(CC) $(INCLUDES) -dM -E -include button-target.h - < /dev/null | $(LUA_SRCDIR)/button_helper.pl | $(HOSTCC) -fno-builtin $(INCLUDES) -x c -o $(LUA_BUILDDIR)/button_helper -
$(call PRINTS,GEN $(@F))$(LUA_BUILDDIR)/button_helper > $(LUA_BUILDDIR)/buttons.lua
$(LUA_BUILDDIR)/rocklib_aux.c: $(APPSDIR)/plugin.h
$(call PRINTS,GEN $(@F))$(CC) $(CFLAGS) $(INCLUDES) -E -include plugin.h - < /dev/null | $(LUA_SRCDIR)/rocklib_aux.pl $(LUA_SRCDIR) > $(LUA_BUILDDIR)/rocklib_aux.c
$(LUA_BUILDDIR)/rocklib_aux.o: $(LUA_BUILDDIR)/rocklib_aux.c
$(call PRINTS,CC $(<F))$(CC) $(INCLUDES) -I $(LUA_SRCDIR) $(CFLAGS) -c $< -o $@
$(LUA_BUILDDIR)/lua.refmap: $(LUA_OBJ)
$(LUA_OUTLDS): $(PLUGIN_LDS) $(LUA_BUILDDIR)/lua.refmap

View file

@ -258,72 +258,6 @@ RB_WRAP(clear_viewport)
return 0;
}
RB_WRAP(splash)
{
int ticks = luaL_checkint(L, 1);
const char *s = luaL_checkstring(L, 2);
rb->splash(ticks, s);
return 0;
}
RB_WRAP(lcd_update)
{
(void)L;
rb->lcd_update();
return 0;
}
RB_WRAP(lcd_update_rect)
{
int x = luaL_checkint(L, 1);
int y = luaL_checkint(L, 2);
int width = luaL_checkint(L, 3);
int height = luaL_checkint(L, 4);
rb->lcd_update_rect(x, y, width, height);
return 0;
}
RB_WRAP(lcd_clear_display)
{
(void)L;
rb->lcd_clear_display();
return 0;
}
RB_WRAP(lcd_putsxy)
{
int x = luaL_checkint(L, 1);
int y = luaL_checkint(L, 2);
const char* string = luaL_checkstring(L, 3);
rb->lcd_putsxy(x, y, string);
return 0;
}
RB_WRAP(lcd_puts)
{
int x = luaL_checkint(L, 1);
int y = luaL_checkint(L, 2);
const char* string = luaL_checkstring(L, 3);
rb->lcd_puts(x, y, string);
return 0;
}
RB_WRAP(lcd_puts_scroll)
{
int x = luaL_checkint(L, 1);
int y = luaL_checkint(L, 2);
const char* string = luaL_checkstring(L, 3);
rb->lcd_puts_scroll(x, y, string);
return 0;
}
RB_WRAP(lcd_stop_scroll)
{
(void)L;
rb->lcd_stop_scroll();
return 0;
}
#ifdef HAVE_LCD_BITMAP
RB_WRAP(lcd_framebuffer)
{
@ -331,89 +265,6 @@ RB_WRAP(lcd_framebuffer)
return 1;
}
RB_WRAP(lcd_set_drawmode)
{
int drawmode = luaL_checkint(L, 1);
rb->lcd_set_drawmode(drawmode);
return 0;
}
RB_WRAP(lcd_get_drawmode)
{
int result = rb->lcd_get_drawmode();
lua_pushinteger(L, result);
return 1;
}
RB_WRAP(lcd_setfont)
{
int font = luaL_checkint(L, 1);
rb->lcd_setfont(font);
return 0;
}
RB_WRAP(lcd_drawpixel)
{
int x = luaL_checkint(L, 1);
int y = luaL_checkint(L, 2);
rb->lcd_drawpixel(x, y);
return 0;
}
RB_WRAP(lcd_drawline)
{
int x1 = luaL_checkint(L, 1);
int y1 = luaL_checkint(L, 2);
int x2 = luaL_checkint(L, 3);
int y2 = luaL_checkint(L, 4);
rb->lcd_drawline(x1, y1, x2, y2);
return 0;
}
RB_WRAP(lcd_hline)
{
int x1 = luaL_checkint(L, 1);
int x2 = luaL_checkint(L, 2);
int y = luaL_checkint(L, 3);
rb->lcd_hline(x1, x2, y);
return 0;
}
RB_WRAP(lcd_vline)
{
int x = luaL_checkint(L, 1);
int y1 = luaL_checkint(L, 2);
int y2 = luaL_checkint(L, 3);
rb->lcd_vline(x, y1, y2);
return 0;
}
RB_WRAP(lcd_drawrect)
{
int x = luaL_checkint(L, 1);
int y = luaL_checkint(L, 2);
int width = luaL_checkint(L, 3);
int height = luaL_checkint(L, 4);
rb->lcd_drawrect(x, y, width, height);
return 0;
}
RB_WRAP(lcd_fillrect)
{
int x = luaL_checkint(L, 1);
int y = luaL_checkint(L, 2);
int width = luaL_checkint(L, 3);
int height = luaL_checkint(L, 4);
rb->lcd_fillrect(x, y, width, height);
return 0;
}
RB_WRAP(lcd_mono_bitmap_part)
{
struct rocklua_image *src = rli_checktype(L, 1);
@ -442,34 +293,6 @@ RB_WRAP(lcd_mono_bitmap)
}
#if LCD_DEPTH > 1
RB_WRAP(lcd_set_foreground)
{
unsigned foreground = luaL_checkint(L, 1);
rb->lcd_set_foreground(foreground);
return 0;
}
RB_WRAP(lcd_get_foreground)
{
unsigned result = rb->lcd_get_foreground();
lua_pushinteger(L, result);
return 1;
}
RB_WRAP(lcd_set_background)
{
unsigned background = luaL_checkint(L, 1);
rb->lcd_set_background(background);
return 0;
}
RB_WRAP(lcd_get_background)
{
unsigned result = rb->lcd_get_background();
lua_pushinteger(L, result);
return 1;
}
RB_WRAP(lcd_bitmap_part)
{
struct rocklua_image *src = rli_checktype(L, 1);
@ -541,76 +364,12 @@ RB_WRAP(lcd_bitmap_transparent)
#endif /* defined(LCD_BITMAP) */
RB_WRAP(yield)
{
(void)L;
rb->yield();
return 0;
}
RB_WRAP(sleep)
{
int ticks = luaL_checkint(L, 1);
rb->sleep(ticks);
return 0;
}
RB_WRAP(current_tick)
{
lua_pushinteger(L, *rb->current_tick);
return 1;
}
RB_WRAP(button_get)
{
bool block = luaL_checkboolean(L, 1);
long result = rb->button_get(block);
lua_pushinteger(L, result);
return 1;
}
RB_WRAP(button_get_w_tmo)
{
int ticks = luaL_checkint(L, 1);
long result = rb->button_get_w_tmo(ticks);
lua_pushinteger(L, result);
return 1;
}
RB_WRAP(button_status)
{
int result = rb->button_status();
lua_pushinteger(L, result);
return 1;
}
#ifdef HAVE_BUTTON_DATA
RB_WRAP(button_get_data)
{
int result = rb->button_get_data();
lua_pushinteger(L, result);
return 1;
}
#endif
#ifdef HAS_BUTTON_HOLD
RB_WRAP(button_hold)
{
bool result = rb->button_hold();
lua_pushboolean(L, result);
return 1;
}
#endif
RB_WRAP(get_action)
{
int context = luaL_checkint(L, 1);
int timeout = luaL_checkint(L, 2);
int result = rb->get_action(context, timeout);
lua_pushinteger(L, result);
return 1;
}
#ifdef HAVE_TOUCHSCREEN
RB_WRAP(action_get_touchscreen_press)
{
@ -624,14 +383,6 @@ RB_WRAP(action_get_touchscreen_press)
}
#endif
RB_WRAP(action_userabort)
{
int timeout = luaL_checkint(L, 1);
bool result = rb->action_userabort(timeout);
lua_pushboolean(L, result);
return 1;
}
RB_WRAP(kbd_input)
{
luaL_Buffer b;
@ -655,69 +406,6 @@ RB_WRAP(touchscreen_set_mode)
}
#endif
RB_WRAP(backlight_on)
{
(void)L;
rb->backlight_on();
return 0;
}
RB_WRAP(backlight_off)
{
(void)L;
rb->backlight_off();
return 0;
}
RB_WRAP(backlight_set_timeout)
{
int val = luaL_checkint(L, 1);
rb->backlight_set_timeout(val);
return 0;
}
#ifdef HAVE_BACKLIGHT_BRIGHTNESS
RB_WRAP(backlight_set_brightness)
{
int val = luaL_checkint(L, 1);
rb->backlight_set_brightness(val);
return 0;
}
#endif
RB_WRAP(creat)
{
const char* pathname = luaL_checkstring(L, 1);
int result = rb->creat(pathname);
lua_pushinteger(L, result);
return 1;
}
RB_WRAP(remove)
{
const char* pathname = luaL_checkstring(L, 1);
int result = rb->remove(pathname);
lua_pushinteger(L, result);
return 1;
}
RB_WRAP(rename)
{
const char* path = luaL_checkstring(L, 1);
const char* newname = luaL_checkstring(L, 2);
int result = rb->rename(path, newname);
lua_pushinteger(L, result);
return 1;
}
RB_WRAP(file_exists)
{
const char* path = luaL_checkstring(L, 1);
bool result = rb->file_exists(path);
lua_pushboolean(L, result);
return 1;
}
RB_WRAP(font_getstringsize)
{
const unsigned char* str = luaL_checkstring(L, 1);
@ -796,32 +484,11 @@ RB_WRAP(current_path)
static const luaL_Reg rocklib[] =
{
/* Graphics */
R(lcd_clear_display),
R(lcd_update),
R(lcd_update_rect),
R(lcd_puts),
R(lcd_putsxy),
R(lcd_puts_scroll),
R(lcd_stop_scroll),
R(splash),
#ifdef HAVE_LCD_BITMAP
R(lcd_framebuffer),
R(lcd_set_drawmode),
R(lcd_get_drawmode),
R(lcd_setfont),
R(lcd_drawline),
R(lcd_drawpixel),
R(lcd_hline),
R(lcd_vline),
R(lcd_drawrect),
R(lcd_fillrect),
R(lcd_mono_bitmap_part),
R(lcd_mono_bitmap),
#if LCD_DEPTH > 1
R(lcd_set_foreground),
R(lcd_get_foreground),
R(lcd_set_background),
R(lcd_get_background),
R(lcd_get_backdrop),
R(lcd_bitmap_part),
R(lcd_bitmap),
@ -836,43 +503,16 @@ static const luaL_Reg rocklib[] =
R(lcd_rgbunpack),
#endif
/* File handling */
R(creat),
R(remove),
R(rename),
R(file_exists),
/* Kernel */
R(sleep),
R(yield),
R(current_tick),
/* Buttons */
R(button_get),
R(button_get_w_tmo),
R(button_status),
#ifdef HAVE_BUTTON_DATA
R(button_get_data),
#endif
#ifdef HAS_BUTTON_HOLD
R(button_hold),
#endif
R(get_action),
R(action_userabort),
#ifdef HAVE_TOUCHSCREEN
R(action_get_touchscreen_press),
R(touchscreen_set_mode),
#endif
R(kbd_input),
/* Hardware */
R(backlight_on),
R(backlight_off),
R(backlight_set_timeout),
#ifdef HAVE_BACKLIGHT_BRIGHTNESS
R(backlight_set_brightness),
#endif
R(font_getstringsize),
R(read_bmp_file),
R(set_viewport),
@ -884,6 +524,8 @@ static const luaL_Reg rocklib[] =
{NULL, NULL}
};
#undef R
extern const luaL_Reg rocklib_aux[];
#define RB_CONSTANT(x) lua_pushinteger(L, x); lua_setfield(L, -2, #x);
/*
@ -892,6 +534,7 @@ static const luaL_Reg rocklib[] =
LUALIB_API int luaopen_rock(lua_State *L)
{
luaL_register(L, LUA_ROCKLIBNAME, rocklib);
luaL_register(L, LUA_ROCKLIBNAME, rocklib_aux);
RB_CONSTANT(HZ);

291
apps/plugins/lua/rocklib_aux.pl Executable file
View file

@ -0,0 +1,291 @@
#!/usr/bin/env perl
sub trim
{
my $text = $_[0];
$text =~ s/^\s+//;
$text =~ s/\s+$//;
return $text;
}
sub rand_string
{
my @chars=('a'..'z');
my $ret;
foreach (1..5)
{
$ret .= $chars[rand @chars];
}
return $ret;
}
my @functions;
my @ported_functions;
my @forbidden_functions = ('^open$',
'^close$',
'^read$',
'^write$',
'^lseek$',
'^ftruncate$',
'^filesize$',
'^fdprintf$',
'^read_line$',
'^[a-z]+dir$',
'^__.+$',
'^.+_(un)?cached$',
'^audio_play$');
my $rocklib = sprintf("%s/rocklib.c", $ARGV[0]);
open ROCKLIB, "<$rocklib" or die("Couldn't open $rocklib: $!");
while(<ROCKLIB>)
{
if(/^RB_WRAP\(([^)]+)\)/)
{
push(@ported_functions, $1);
}
}
close ROCKLIB;
# Parse plugin.h
my $start = 0;
while(<STDIN>)
{
if(/struct plugin_api \{/)
{
$start = 1;
}
elsif($start && /\};/)
{
$start = 0;
}
if($start == 1)
{
my $line = $_;
while($line !~ /;/)
{
$line .= <STDIN>;
}
$line =~ s/(\n|\r)//g;
if($line =~ /([a-zA-Z *_]+)?\s?\(\*([^)]+)?\)\(([^)]+)\).*?;/)
{
$return_type = $1;
$name = $2;
$arguments = $3;
$return_type = trim($return_type);
$arguments =~ s/\s{2,}/ /g;
if( !grep($_ eq $name, @ported_functions) &&
!grep($name =~ $_, @forbidden_functions))
{
push(@functions, {'name' => $name, 'return' => $return_type, 'arg' => $arguments});
}
}
}
}
my $svnrev = '$Revision$';
# Print the header
print <<EOF
/* Automatically generated of $svnrev from rocklib.c & plugin.h */
#define lrocklib_c
#define LUA_LIB
#define _ROCKCONF_H_ /* We don't need strcmp() etc. wrappers */
#include "lua.h"
#include "lauxlib.h"
#include "plugin.h"
EOF
;
my %in_types = ('void' => \&in_void,
'int' => \&in_int,
'unsigned' => \&in_int,
'unsignedint' => \&in_int,
'signed' => \&in_int,
'signedint' => \&in_int,
'short' => \&in_int,
'unsignedshort' => \&in_int,
'signedshort' => \&in_int,
'long' => \&in_int,
'unsignedlong' => \&in_int,
'signedlong' => \&in_int,
'char' => \&in_int,
'unsignedchar' => \&in_int,
'signedchar' => \&in_int,
'char*' => \&in_string,
'signedchar*' => \&in_string,
'unsignedchar*' => \&in_string,
'bool' => \&in_bool,
'_Bool' => \&in_bool
), %out_types = ('void' => \&out_void,
'int' => \&out_int,
'unsigned' => \&out_int,
'unsignedint' => \&out_int,
'signed' => \&out_int,
'signedint' => \&out_int,
'short' => \&out_int,
'unsignedshort' => \&out_int,
'signedshort' => \&out_int,
'long' => \&out_int,
'unsignedlong' => \&out_int,
'signedlong' => \&out_int,
'char' => \&out_int,
'unsignedchar' => \&out_int,
'signedchar' => \&out_int,
'char*' => \&out_string,
'signedchar*' => \&out_string,
'unsignedchar*' => \&out_string,
'bool' => \&out_bool,
'_Bool' => \&out_bool
);
sub in_void
{
return "\t(void)L;\n";
}
sub in_int
{
my ($name, $type, $pos) = @_;
return sprintf("\t%s %s = (%s) luaL_checkint(L, %d);\n", $type, $name, $type, $pos);
}
sub in_string
{
my ($name, $type, $pos) = @_;
return sprintf("\t%s %s = (%s) luaL_checkstring(L, %d);\n", $type, $name, $type, $pos)
}
sub in_bool
{
my ($name, $type, $pos) = @_;
return sprintf("\tbool %s = luaL_checkboolean(L, %d);\n", $name, $pos)
}
sub out_void
{
my $name = $_[0];
return sprintf("\t%s;\n\treturn 0;\n", $name);
}
sub out_int
{
my ($name, $type) = @_;
return sprintf("\t%s result = %s;\n\tlua_pushinteger(L, result);\n\treturn 1;\n", $type, $name);
}
sub out_string
{
my ($name, $type) = @_;
return sprintf("\t%s result = %s;\n\tlua_pushstring(L, result);\n\treturn 1;\n", $type, $name);
}
sub out_bool
{
my ($name, $type) = @_;
return sprintf("\tbool result = %s;\n\tlua_pushboolean(L, result);\n\treturn 1;\n", $name);
}
# Print the functions
my @valid_functions;
foreach my $function (@functions)
{
my $valid = 1, @arguments = ();
# Check for supported arguments
foreach my $argument (split(/,/, @$function{'arg'}))
{
$argument = trim($argument);
if($argument !~ /\[.+\]/ && ($argument =~ /^(.+[\s*])([^[*\s]*)/
|| $argument eq "void"))
{
my $literal_type, $type, $name;
if($argument eq "void")
{
$literal_type = "void", $type = "void", $name = "";
}
else
{
$literal_type = trim($1), $name = trim($2), $type = trim($1);
$type =~ s/(\s|const)//g;
if($name eq "")
{
$name = rand_string();
}
}
#printf "/* %s: %s|%s */\n", @$function{'name'}, $type, $name;
if(!defined $in_types{$type})
{
$valid = 0;
break;
}
push(@arguments, {'name' => $name,
'type' => $type,
'literal_type' => $literal_type
});
}
else
{
$valid = 0;
break;
}
}
# Check for supported return value
my $return = @$function{'return'};
$return =~ s/(\s|const)//g;
#printf "/* %s: %s [%d] */\n", @$function{'name'}, $return, $valid;
if(!defined $out_types{$return})
{
$valid = 0;
}
if($valid == 1)
{
# Print the header
printf "static int rock_%s(lua_State *L)\n".
"{\n",
@$function{'name'};
# Print the arguments
my $i = 1;
foreach my $argument (@arguments)
{
print $in_types{@$argument{'type'}}->(@$argument{'name'}, @$argument{'literal_type'}, $i++);
}
# Generate the arguments string
my $func_args = $arguments[0]{'name'};
for(my $i = 1; $i < $#arguments + 1; $i++)
{
$func_args .= ", ".$arguments[$i]{'name'};
}
# Print the function call
my $func = sprintf("rb->%s(%s)", @$function{'name'}, $func_args);
# Print the footer
print $out_types{$return}->($func, @$function{'return'});
print "}\n\n";
push(@valid_functions, $function);
}
}
# Print the C array
print "const luaL_Reg rocklib_aux[] =\n{\n";
foreach my $function (@valid_functions)
{
printf "\t{\"%s\", rock_%s},\n", @$function{'name'}, @$function{'name'};
}
print "\t{NULL, NULL}\n};\n\n";