Code:
# ★ Screenshot taker
# ★★★★★★★★★★★★★★★★★★★★★★★
#
# Author/s : cremno
# RGSS ver : 3.0.0, 3.0.1
#
# Update 20150821:
# Author : linkey
# Added switch function, changed filename generation
module Screenshot
# ↓ CONFIGURATION
# key symbol or constant (help file → (Index → ) Input → Constants)
KEY = :F5
# SE file name (Sound Test ♬) (will be played after the image has been saved)
SE = 'Sheep'
# image file format / extension (:bmp, :jpg, :gif, :tiff, :png)
FORMAT = :png
# directory name
DIRECTORY = 'Highscore'
# file name
FILENAME = 'Highscore'
# Switch
SWITCH = 35
# ↑ CONFIGURATION
def self.play_se
RPG::SE.new(Screenshot::SE).play
end
def self.filename
Dir.exist?(DIRECTORY) || Dir.mkdir(DIRECTORY)
"#{DIRECTORY}/#{FILENAME} #{Dir.entries(DIRECTORY).size - 1}.#{FORMAT} "
end
end
class Bitmap
def save(filename)
ext = File.extname(filename)[1..-1]
if ext.empty?
warn "Bitmap#save: filename doesn't have an extension (fallback to PNG)"
ext = :png
filename << '.png'
else
ext = ext.to_sym
end
retval = false
bitmap = Gdiplus::Bitmap.new(:scan0, width, height, scan0)
if bitmap
retval = bitmap.save(:file, filename, ext)
bitmap.dispose
end
retval
end
private
def _data_struct(offset = 0)
@_data_struct ||= (DL::CPtr.new((object_id << 1) + 16).ptr + 8).ptr
(@_data_struct + offset).ptr.to_i
end
def gdidib
@gdidib ||= [_data_struct(8), _data_struct(16)]
end
def hbitmap
@hbitmap ||= _data_struct(44)
end
def scan0
@scan0 ||= _data_struct(12)
end
end
class << Graphics
alias_method :update_wo_screenshot, :update
def update
if($game_switches[Screenshot::SWITCH])
Input.trigger?(Screenshot::KEY) &&
Graphics.snap_to_bitmap.save(Screenshot.filename) &&
Screenshot.play_se
end
update_wo_screenshot
end
end
# ★ Windows Wide Char Management
# ★★★★★★★★★★★★★★★★★★★★★★★
#
# Author/s : cremno
# RGSS ver : 3.0.0, 3.0.1
class Encoding
UTF_8 ||= find('UTF-8')
UTF_16LE ||= find('UTF-16LE')
end
class String
unless method_defined?(:widen)
def widen
(self + "\0").encode(Encoding::UTF_16LE)
end
end
unless method_defined?(:widen!)
def widen!
self << "\0"
encode!(Encoding::UTF_16LE)
end
end
unless method_defined?(:narrow)
def narrow
chomp("\0").encode(Encoding::UTF_8)
end
end
unless method_defined?(:narrow!)
def narrow!
chomp!("\0")
encode!(Encoding::UTF_8)
end
end
end
# ★ GDI+ interface
# ★★★★★★★★★★★★★★★★★★★★★★★
#
# Author/s : cremno
# RGSS ver : 3.0.0, 3.0.1
module Gdiplus
class GdiplusError < StandardError
end
DLL = DL.dlopen('gdiplus')
FUNCTIONS = {}
{
'GdiplusStartup' => DL::TYPE_INT,
'GdiplusShutdown' => DL::TYPE_VOID,
'GdipDisposeImage' => DL::TYPE_INT,
'GdipSaveImageToFile' => DL::TYPE_INT,
'GdipCreateBitmapFromGdiDib' => DL::TYPE_INT,
'GdipCreateBitmapFromHBITMAP' => DL::TYPE_INT,
'GdipCreateBitmapFromScan0' => DL::TYPE_INT
}.each do |name, type|
FUNCTIONS[name.to_sym] = DL::CFunc.new(DLL[name], type, name, :stdcall)
end
CLSIDS = {}
dll = DL.dlopen('ole32')
name = 'CLSIDFromString'
func = DL::CFunc.new(dll[name], DL::TYPE_LONG, name, :stdcall)
{
bmp: '{557cf400-1a04-11d3-9a73-0000f81ef32e}'.widen!,
jpg: '{557cf401-1a04-11d3-9a73-0000f81ef32e}'.widen!,
gif: '{557cf402-1a04-11d3-9a73-0000f81ef32e}'.widen!,
tif: '{557cf405-1a04-11d3-9a73-0000f81ef32e}'.widen!,
png: '{557cf406-1a04-11d3-9a73-0000f81ef32e}'.widen!
}.each do |format, string|
clsid = "\0" * 16
func.call([DL::CPtr[string].to_i, DL::CPtr[clsid].to_i])
CLSIDS[format] = clsid
end
CLSIDS[:jpeg] = CLSIDS[:jpg]
CLSIDS[:tiff] = CLSIDS[:tif]
@token = "\0" * DL::SIZEOF_VOIDP
def self.token
@token
end
# TODO: prepend prefix (Gdip or Gdiplus) automatically
def self.call(*args)
name = args.shift
args.map! { |e| DL::CPtr[e].to_i }
r = FUNCTIONS[name].call(args)
if r && r != 0
fail GdiplusError,
"Status: #{v}\nFunction: #{name}\nArguments: #{args.inspect}"
end
true
end
def self.startup
input = [1].pack('L') # GdiplusVersion
input << "\0" * DL::SIZEOF_VOIDP # DebugEventCallback
input << "\0" * DL::SIZEOF_INT # SuppressBackgroundThread
input << "\0" * DL::SIZEOF_INT # SuppressExternalCodecs
call(:GdiplusStartup, @token, input, 0)
end
def self.shutdown
call(:GdiplusShutdown, @token)
end
class Image
attr_reader :instance
def initialize
@instance = 0
true
end
def save(destination, *args)
case destination
when :file
filename = args.shift.widen!
argv = [:GdipSaveImageToFile, filename, Gdiplus::CLSIDS[args.shift], 0]
else
fail ArgumentError, "unknown GDI+ image destination: #{source}"
end
argv.insert(1, @instance)
Gdiplus.call(*argv)
end
def dispose
Gdiplus.call(:GdipDisposeImage, @instance)
end
end
class Bitmap < Image
def initialize(source, *args)
case source
when :gdidib
argv = [:GdipCreateBitmapFromGdiDib, args.shift, args.shift]
when :hbitmap
argv = [:GdipCreateBitmapFromHBITMAP, args.shift, 0]
when :scan0
w = args.shift
h = args.shift
stride = w * -4 # BGRA, mirrored
format = 0x26200A # PixelFormat32bppARGB
scan0 = args.shift
argv = [:GdipCreateBitmapFromScan0, w, h, stride, format, scan0]
else
fail ArgumentError, "unknown GDI+ bitmap source: #{source}"
end
argv << "\0" * DL::SIZEOF_VOIDP
r = Gdiplus.call(*argv)
@instance = r ? argv[-1].unpack(DL::SIZEOF_VOIDP == 4 ? 'L' : 'Q')[0] : 0
r
end
end
end
Gdiplus.startup
class << SceneManager
alias_method :exit_wo_gdip_shutdown, :exit
def exit
exit_wo_gdip_shutdown
Gdiplus.shutdown
end
end
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