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Diffstat (limited to 'host/matelight/renderers.py')
| -rw-r--r-- | host/matelight/renderers.py | 154 |
1 files changed, 0 insertions, 154 deletions
diff --git a/host/matelight/renderers.py b/host/matelight/renderers.py deleted file mode 100644 index f507513..0000000 --- a/host/matelight/renderers.py +++ /dev/null @@ -1,154 +0,0 @@ -import time -try: - import re2 as re -except ImportError: - import re -import numpy as np -from PIL import Image -from pixelterm import xtermcolors -from config import * -from font import * - -default_palette = [ - (0x00, 0x00, 0x00), # 0 normal colors - (0xcd, 0x00, 0x00), # 1 - (0x00, 0xcd, 0x00), # 2 - (0xcd, 0xcd, 0x00), # 3 - (0x00, 0x00, 0xee), # 4 - (0xcd, 0x00, 0xcd), # 5 - (0x00, 0xcd, 0xcd), # 6 - (0xe5, 0xe5, 0xe5), # 7 - (0x7f, 0x7f, 0x7f), # 8 bright colors - (0xff, 0x00, 0x00), # 9 - (0x00, 0xff, 0x00), # 10 - (0xff, 0xff, 0x00), # 11 - (0x5c, 0x5c, 0xff), # 12 - (0xff, 0x00, 0xff), # 13 - (0x00, 0xff, 0xff), # 14 - (0xff, 0xff, 0xff)] # 15 -default_colors = (default_palette[8], default_palette[0]) - -class CharGenerator: - def __init__(self, seq=None, lg=None, text=''): - settings = False, False, False, default_colors - if lg: - settings = lg.bold, lg.blink, lg.underscore, (lg.fg, lg.bg) - self.bold, self.blink, self.underscore, (self.fg, self.bg) = settings - self.text = text - if seq: - self.parse_escape_sequence(seq) - - def parse_escape_sequence(self, seq): - codes = list(map(int, seq[2:-1].split(';'))) - fg, bg, reverse, i = self.fg, self.bg, False, 0 - while i<len(codes): - a = codes[i] - if a in [38, 48]: - if codes[i+1] == 5: - c = xtermcolors.xterm_colors[codes[i+2]] - fg, bg = (c, bg) if a == 38 else (fg, c) - i += 2 - elif a == 39: - fg = (0,0,0) - elif a == 49: - bg = (0,0,0) - elif a == 0: - fg, bg = default_colors - self.bold, self.blink, self.underscore = False, False, False - elif a in range(30, 38): - fg = default_palette[a-30] - elif a in range(90, 98): - fg = default_palette[a-90+8] - elif a in range(40, 48): - bg = default_palette[a-40] - elif a in range(101, 108): - bg = default_palette[a-100+8] - elif a == 7: - reverse = True - elif a == 5: - self.blink = True - elif a == 4: - self.underscore = True - elif a == 1: # Literally "bright", not bold. - self.bold = True - i += 1 - fg, bg = (bg, fg) if reverse else (fg, bg) - self.fg, self.bg = fg, bg - - def generate_char(self, c, now): - fg, bg = (self.bg, self.fg) if self.blink and now%1.0 < 0.3 else (self.fg, self.bg) - glyph = FONT.glyphs_by_codepoint[ord(c)] - # Please forgive the string manipulation below. - lookup = {'0': bg, '1': fg} - FONT_PADDED_BINARY = ('{:0'+str(glyph.bbW)+'b}').format - FONT_Y_PAD = [[bg]*glyph.bbW]*(DISPLAY_HEIGHT-FONT_HEIGHT) - return np.swapaxes(np.array([ list(map(lookup.get, FONT_PADDED_BINARY(int(row, 16))[:glyph.bbW])) for row in glyph.get_data() ] + FONT_Y_PAD, dtype=np.uint8), 0, 1) - - def generate(self, now): - chars = [self.generate_char(c, now) for c in self.text] - # This refers to inter-letter spacing - space = np.zeros((LETTER_SPACING, DISPLAY_HEIGHT, 3), dtype=np.uint8) - spaces = [space]*(len(chars)-1) - everything = chars + spaces - everything[::2] = chars - everything[1::2] = spaces - return np.concatenate(everything) - -class TextRenderer: - def __init__(self, text, escapes=True): - """Renders text into a frame buffer - - "escapes" tells the renderer whether to interpret escape sequences (True) or not (False). - """ - generators = [] - current_generator = CharGenerator() - for match in re.finditer('(\x1B\[[0-9;]+m)|(.)', text): - esc, char = match.groups() - if esc: - if current_generator.text != '': - generators.append(current_generator) - current_generator = CharGenerator(esc, current_generator) - elif char: - current_generator.text += char - generators = generators + [current_generator] - # Generate the actual frame buffer - zeros = [np.zeros((DISPLAY_WIDTH, DISPLAY_HEIGHT, 3), dtype=np.uint8)] - # Pad the array with one screen's worth of zeros on both sides so the text fully scrolls through. - now = time.time() - self.raw = np.concatenate(zeros+[g.generate(now) for g in generators]+zeros) - - def frames(self): - w,h,_ = self.raw.shape - for i in range(0, w-DISPLAY_WIDTH, 2): - frame = self.raw[i:i+DISPLAY_WIDTH, :, :] - yield frame, 1/DEFAULT_SCROLL_SPEED - -class ImageRenderer: - def __new__(cls, image_data): - img = Image.open(io.BytesIO(image_data)) - self.img = img - - def frames(self): - img = self.img - palette = img.getpalette() - last_frame = Image.new("RGB", img.size) - # FIXME set delay to 1/10s if the image is animated, only use DEFAULT_IMAGE_DURATION for static images. - delay = img.info.get('duration', DEFAULT_IMAGE_DURATION*1000.0)/1000.0 - - for frame in ImageSequence.Iterator(img): - #This works around a known bug in Pillow - #See also: http://stackoverflow.com/questions/4904940/python-converting-gif-frames-to-png - frame.putpalette(palette) - c = frame.convert("RGB") - - if img.info['background'] != img.info['transparency']: - last_frame.paste(c, c) - else: - last_frame = c - - im = last_frame.copy() - im.thumbnail((DISPLAY_WIDTH, DISPLAY_HEIGHT), Image.NEAREST) - data = np.array(im.getdata(), dtype=np.int8) - data.reshape((DISPLAY_WIDTH, DISPLAY_HEIGHT, 3)) - yield data, delay - |