Python PNMImage.add_alpha方法代码示例

# 需要导入模块: from panda3d.core import PNMImage [as 别名]
# 或者: from panda3d.core.PNMImage import add_alpha [as 别名]
def generate_atlas(files, dest_dat, dest_png):
    entries = []

    virtual_atlas_size = 32
    all_entries_matched = False

    print "Loading", len(files), "entries .."
    for verbose_name, source in files:
        entries.append(AtlasEntry(verbose_name, source))

    entries = sorted(entries, key=lambda a: -a.area)

    while not all_entries_matched:
        print "Trying to pack into a", virtual_atlas_size, "x", virtual_atlas_size, "atlas .."

        packer = LUIAtlasPacker(virtual_atlas_size)
        all_entries_matched = True

        for entry in entries:
            uv = packer.find_position(entry.w, entry.h)

            if uv.get_x() < 0:
                # print "  Not all images matched, trying next power of 2"
                all_entries_matched = False
                virtual_atlas_size *= 2
                break
            entry.assigned_pos = uv

    print "Matched entries, writing atlas .."

    atlas_description_content = ""
    dest = PNMImage(virtual_atlas_size, virtual_atlas_size, 4)

    for entry in entries:
        src = PNMImage(entry.w, entry.h, 4)
        entry.tex.store(src)

        if not src.has_alpha():
            src.add_alpha()
            src.alpha_fill(1.0)

        dest.copy_sub_image(
            src, int(entry.assigned_pos.get_x()), int(entry.assigned_pos.get_y()))

        atlas_description_content += "{0} {1} {2} {3} {4}\n".format(
            entry.name.replace(" ", "_"),
            int(entry.assigned_pos.get_x()),
            int(entry.assigned_pos.get_y()),
            entry.w, entry.h)

    dest.write(dest_png)

    with open(dest_dat, "w") as handle:
        handle.write(atlas_description_content)

# 需要导入模块: from panda3d.core import PNMImage [as 别名]
# 或者: from panda3d.core.PNMImage import add_alpha [as 别名]
    def build(self, exit_behav):
        self.drv_info = self.props.gameprops.drivers_info
        menu_props = self.menu_props
        widgets = [Text(_('Select the driver'), pos=(0, .8),
                                **menu_props.text_args)]
        t_a = self.menu_props.text_args.copy()
        del t_a['scale']
        self.name = Text(_('Write your name:'), pos=(-.1, .6), scale=.06,
                            align='right', wordwrap=128, **t_a)
        self.drivers = []
        for row, col in product(range(2), range(4)):
            idx = col + row * 4
            drv_btn = ImgBtn(
                scale=(.24, .24), pos=(-.75 + col * .5, .3 - row * .64),
                frame_col=(0, 0, 0, 0),
                img=self.props.gameprops.drivers_img.path % idx,
                cmd=self.on_click, extra_args=[idx],
                **self.menu_props.imgbtn_args)
            name = Text(
                '',
                pos=(-.75 + col * .5, .01 - row * .64),
                scale=.046, **t_a)
            drv_btn._name_txt = name
            widgets += [drv_btn, name]
            self.drivers += [widgets[-2]]
            sign = lambda pos_x: '\1green\1+\2' if pos_x > 0 else ''
            psign = lambda pos_x, sgn=sign: '+' if pos_x == 0 else sgn(pos_x)

            def ppcol(x):
                return '\1green\1%s\2' % x if x > 0 else '\1red\1%s\2' % x
            pcol = lambda x: x if x == 0 else ppcol(x)
            lab_lst = [(_('adherence'), .09), (_('speed'), .21),
                       (_('stability'), .15)]
            widgets += list(map(
                lambda lab_def: self._add_lab(*(lab_def + (row, col))),
                lab_lst))
            txt_lst = [(self.drv_info[idx - 1].adherence, .09),
                       (self.drv_info[idx - 1].speed, .21),
                       (self.drv_info[idx - 1].stability, .15)]
            widgets += list(map(
                lambda txt_def: self._add_txt(
                    *txt_def + (psign, pcol, col, row)),
                txt_lst))
        self.sel_drv_img = Img(
            self.props.gameprops.cars_img % self.mediator.car,
            parent=base.a2dBottomLeft, pos=(.3, .4), scale=.28)
        instr_txt = _(
            'If you use the keyboard, press FIRE to edit the field, then '
            "ENTER when you're done")
        instr = Text(instr_txt, pos=(1.4, .6), scale=.042, wordwrap=16, **t_a)
        widgets += [self.sel_drv_img, self.name, instr]
        self.add_widgets(widgets)
        ffilterpath = self.eng.curr_path + 'yyagl/assets/shaders/filter.vert'
        with open(ffilterpath) as ffilter:
            vert = ffilter.read()
        shader = load_shader(vert, frag)
        if shader:
            self.sel_drv_img.set_shader(shader)
        self.sel_drv_img.set_transparent()
        self.t_s = TextureStage('ts')
        self.t_s.set_mode(TextureStage.MDecal)
        empty_img = PNMImage(1, 1)
        empty_img.add_alpha()
        empty_img.alpha_fill(0)
        tex = Texture()
        tex.load(empty_img)
        self.sel_drv_img.set_texture(self.t_s, tex)
        ThanksPageGui.build(self, exit_behav=exit_behav)