diff --git a/pico/__pycache__/main.cpython-312.pyc b/pico/__pycache__/main.cpython-312.pyc index 7f22668..2c1d997 100644 Binary files a/pico/__pycache__/main.cpython-312.pyc and b/pico/__pycache__/main.cpython-312.pyc differ diff --git a/pico/gen_font.py b/pico/gen_font.py new file mode 100644 index 0000000..03f546d --- /dev/null +++ b/pico/gen_font.py @@ -0,0 +1,110 @@ +#!/usr/bin/env python3 +# Generate the anti-aliased bitmap fonts baked into main.py. +# +# Each font is one base64 blob: a small metrics table + 4-bit-alpha glyph pixels. +# main.py decodes it at boot (binascii.a2b_base64) and renders text by blending the +# foreground over the background per pixel via a 16-entry LUT (smooth, no upscaling). +# +# Re-run after changing sizes/charset: python3 pico/gen_font.py +# It writes pico/_font_m.b64 + pico/_font_l.b64 and /tmp/font_verify.png (eyeball it). Then +# inject the two base64 strings into main.py's FONT_M_B64 / FONT_L_B64 (replace the existing +# values, or re-add the @@FONT_M@@ / @@FONT_L@@ placeholders first and substitute them in). + +import base64, pathlib +from PIL import Image, ImageDraw, ImageFont + +FONT = "/usr/share/fonts/truetype/dejavu/DejaVuSans-Bold.ttf" +HERE = pathlib.Path(__file__).parent + +ASCII = "".join(chr(c) for c in range(0x20, 0x7F)) +SYMBOLS = "◀▶■" # ◀ ▶ ■ (prev / play / stop, anti-aliased) +M_CHARS = ASCII + SYMBOLS +L_CHARS = "0123456789 " + +def build(size, chars): + font = ImageFont.truetype(FONT, size) + recs = [] # (cp, w, h, xoff, top, adv) + pixels = bytearray() + for ch in chars: + cp = ord(ch) + adv = round(font.getlength(ch)) + bbox = font.getbbox(ch) + if not bbox or bbox[2] - bbox[0] <= 0 or bbox[3] - bbox[1] <= 0: + recs.append((cp, 0, 0, 0, 0, adv)); continue + l, t, r, b = bbox + w, h = r - l, b - t + img = Image.new("L", (w, h), 0) + ImageDraw.Draw(img).text((-l, -t), ch, fill=255, font=font) + px = img.load() + # pack 4-bit alpha, row-major, two pixels per byte (first = high nibble) + nib = [] + for y in range(h): + for x in range(w): + nib.append(px[x, y] >> 4) + if len(nib) % 2: nib.append(0) + for i in range(0, len(nib), 2): + pixels.append((nib[i] << 4) | nib[i + 1]) + recs.append((cp, w, h, l & 0xFF, t & 0xFF, adv & 0xFF)) + header = bytearray([len(recs)]) + for cp, w, h, xoff, top, adv in recs: + header += bytes([cp >> 8, cp & 0xFF, w, h, xoff, top, adv]) + return bytes(header) + bytes(pixels) + +# ---- reference decoder + renderer (must match main.py exactly) ---- +def load_font(blob): + count = blob[0]; p = 1; pixoff = 1 + count * 7; glyphs = {} + for _ in range(count): + cp = (blob[p] << 8) | blob[p + 1]; w = blob[p + 2]; h = blob[p + 3] + xoff = blob[p + 4]; xoff = xoff - 256 if xoff > 127 else xoff + top = blob[p + 5]; adv = blob[p + 6]; p += 7 + glyphs[cp] = (w, h, xoff, top, adv, pixoff) + pixoff += (w * h + 1) // 2 + return glyphs, blob + +def lut(fg, bg): + def unp(c): return ((c >> 11) & 0x1F, (c >> 5) & 0x3F, c & 0x1F) + fr, fgc, fb = unp(fg); br, bgc, bb = unp(bg); out = [] + for a in range(16): + t = a * 17 + r = (br * (255 - t) + fr * t) // 255 + g = (bgc * (255 - t) + fgc * t) // 255 + b = (bb * (255 - t) + fb * t) // 255 + out.append((r << 11) | (g << 5) | b) + return out + +def render(draw_img, font, s, x, y, fg, bg): + glyphs, blob = font; L = lut(fg, bg); pen = x + for ch in s: + g = glyphs.get(ord(ch)) + if not g: continue + w, h, xoff, top, adv, off = g + for j in range(h): + for i in range(w): + k = j * w + i; byte = blob[off + (k >> 1)] + nibv = (byte >> 4) if (k & 1) == 0 else (byte & 0xF) + col = L[nibv] + r = (col >> 11) & 0x1F; gg = (col >> 5) & 0x3F; b = col & 0x1F + draw_img.putpixel((pen + xoff + i, y + top + j), (r << 3, gg << 2, b << 3)) + pen += adv + return pen + +blob_m = build(22, M_CHARS) +blob_l = build(78, L_CHARS) +(HERE / "_font_m.b64").write_text(base64.b64encode(blob_m).decode()) +(HERE / "_font_l.b64").write_text(base64.b64encode(blob_l).decode()) +print("FONT_M %d bytes -> %d b64" % (len(blob_m), len(base64.b64encode(blob_m)))) +print("FONT_L %d bytes -> %d b64" % (len(blob_l), len(base64.b64encode(blob_l)))) + +# verification image on a dark bg (565 colours like the firmware) +def c565(r, g, b): return ((r & 0xF8) << 8) | ((g & 0xFC) << 3) | (b >> 3) +BG = c565(6, 9, 14); CYAN = c565(10, 179, 247); TXT = c565(199, 208, 219); GREEN = c565(47, 224, 122) +img = Image.new("RGB", (320, 220), (6, 9, 14)) +fm = load_font(blob_m); fl = load_font(blob_l) +render(img, fm, "PM_K-1 KIT", 12, 10, CYAN, BG) +render(img, fl, "120", 150, 40, TXT, BG) +render(img, fm, "BPM", 12, 70, TXT, BG) +render(img, fm, "▶ RUN", 12, 120, GREEN, BG) +render(img, fm, "Four-on-the-floor", 12, 150, TXT, BG) +render(img, fm, "◀◀ ▶ ▶▶ - TAP +", 12, 185, TXT, BG) +img.resize((640, 440), Image.NEAREST).save("/tmp/font_verify.png") +print("wrote /tmp/font_verify.png") diff --git a/pico/main.py b/pico/main.py index 0c83c58..46b7fbc 100644 --- a/pico/main.py +++ b/pico/main.py @@ -5,17 +5,20 @@ # It runs the SAME program-string language as https://metronome.varasys.io — design a groove in # the web editor, copy its program string, paste it into PROGRAMS below, and it plays here. # -# FLASH: 1) Hold BOOTSEL, plug in the Pico, drop the MicroPython UF2 on the RPI-RP2 drive -# (https://micropython.org/download/RPI_PICO/ ; use RPI_PICO2 for a Pico 2). -# 2) Copy THIS file to the Pico as main.py (Thonny: File > Save as > Raspberry Pi Pico). -# 3) Reset. It boots straight into the metronome. +# FLASH (two steps — main.py is NOT drag-and-drop): +# 1) Install MicroPython: hold BOOTSEL, plug in, drop the MicroPython .uf2 on the RPI-RP2 drive +# (https://micropython.org/download/RPI_PICO/ ; RPI_PICO2 for a Pico 2). It reboots itself. +# 2) Copy THIS file to the Pico AS main.py over USB serial — Thonny: File > Save as > Raspberry Pi +# Pico (name it main.py); or mpremote cp main.py :main.py . Then reset. # # IF SOMETHING LOOKS WRONG, flip a flag in CONFIG below (colours, inversion, touch axes) — see README.md. # -# MIT-style: do whatever you like with it. VARASYS — Simplifying Complexity. +# Text is drawn with baked anti-aliased fonts (see pico/gen_font.py) for smooth lettering. +# MIT-style. VARASYS — Simplifying Complexity. from machine import Pin, SPI, I2C, ADC, PWM -import time, framebuf +from binascii import a2b_base64 +import time try: import neopixel @@ -23,7 +26,7 @@ except ImportError: neopixel = None # ============================== CONFIG (tweak if needed) ============================== -SPI_BAUD = 40_000_000 # 40 MHz is a safe-fast default; the vendor demo uses 62.5 MHz +SPI_BAUD = 40_000_000 # 40 MHz safe-fast default; vendor demo uses 62.5 MHz WIDTH, HEIGHT = 320, 480 # ST7796 portrait MADCTL = 0x48 # memory access ctrl (MX | BGR) -> portrait, 320 wide x 480 tall INVERT_COLORS = True # most ST7796 modules need display inversion ON; set False if colours look negative @@ -33,7 +36,6 @@ TOUCH_SWAP_XY = False TOUCH_INVERT_X = False TOUCH_INVERT_Y = False TOUCH_DEBUG = False # True -> print raw touch coords over USB serial to calibrate - # Joystick calibration: JOY_INVERT_X = False JOY_INVERT_Y = False @@ -49,13 +51,34 @@ PIN_BTN_B = 14 # tap tempo PIN_JOY_X = 26 # ADC0 PIN_JOY_Y = 27 # ADC1 -# ----- the grooves on the device (paste program strings from the web editor) ----- +# ----- the grooves on the device (the web set lists; paste your own from the editor) ----- PROGRAMS = [ - ("Four on the floor", "v1;t120;kick:4;snare:4=.X.X;hat:4/2"), - ("Son clave 3-2", "v1;t100;clap:4=X..X..X.;kick:4"), - ("7/8 + 4 polymeter", "v1;t132;kick:7/2;hat:4/2~;snare:4=..X."), - ("Shuffle", "v1;t96;kick:4;snare:4=.X.X;hat:4/3"), - ("Straight click", "v1;t120;beep:4"), + # Styles + ("Four on the floor", "t120;kick:4;snare:4=.x.x;hatClosed:4/2"), + ("Swing ride", "t150;ride:4/2s;kick:4=X..x;snare:4=.x.x"), + ("Purdie half shuffle", "t92;kick:4/3=X....x...x..;snare:4/3=..gg.gX.gg.g;hatClosed:4/3=X.xX.xX.xX.x"), + ("Samba (2/4)", "t104;tomLow:2/4=x...X...;hatClosed:2/4;woodblock:2/4=X.xx.xX."), + ("Nanigo (6/8 bembe)", "t130;cowbell:4/3=X.xx.x.xx.x.;kick:4/3=X.....X.....;hatClosed:4/3=..x..x..x..x"), + ("6/8 groove", "t100;kick:3+3=x..x..;snare:3+3=...x..;hatClosed:3+3/2"), + ("7/8 (2+2+3)", "t130;kick:2+2+3=x..x..x;hatClosed:2+2+3/2"), + ("5/4 (3+2)", "t112;kick:3+2=x..x.;snare:3+2=..x..;hatClosed:3+2/2"), + # Practice + ("5 over 4 polyrhythm", "t100;kick:4;claves:5~"), + ("3 over 2 hemiola", "t96;woodblock:2;cowbell:3~"), + ("2 & 4 & 3 per bar", "t100;kick:3;cowbell:2~;claves:4~"), + ("Triplet hats", "t100;kick:4;snare:4=.x.x;hatClosed:4/3"), + ("Accents", "t92;kick:4=X..X;snare:4=.X.X;hatClosed:4/2"), + ("Tempo builder 80+", "t80;woodblock:4;rmp80/4/4"), + ("Gap trainer 2/2", "t100;kick:4;hatClosed:4/2;tr2/2"), + # Song (continuous on the web; here they play as standalone grooves) + ("Intro - hats+kick", "t88;kick:4=X.x.;hatClosed:4/2=gggggggg"), + ("Groove in", "t88;kick:4=X.x.;snare:4=.X.X;hatClosed:4/2"), + ("Half-time shuffle", "t92;kick:4/3=X....x...x..;snare:4/3=..gg.gX.gg.g;hatClosed:4/3=X.xX.xX.xX.x"), + ("Build 92 to 120", "t92;kick:4;snare:4=.X.X;hatClosed:4/2"), + ("Four-floor (909)", "t124;kick909:4;clap909:4=.X.X;hat909:4/2=.X.X.X.X"), + ("Samba break", "t116;tomLow:2/4=x...X...;hatClosed:2/4;woodblock:2/4=X.xx.xX."), + ("Peak - 16ths", "t132;kick:4=X..x;snare:4=.X.X;hatClosed:4/4"), + ("Outro", "t132;kick:4=X..x;hatClosed:4/2=gggggggg"), ] # ============================== COLOURS ============================== @@ -65,18 +88,32 @@ def rgb565(r, g, b): return bytes((v >> 8, v & 0xFF)) # MSB-first for ST7796 C_BG = rgb565(6, 9, 14) -C_PANEL = rgb565(18, 22, 30) +C_PANEL = rgb565(28, 34, 44) C_TXT = rgb565(199, 208, 219) -C_MUTE = rgb565(110, 122, 138) -C_CYAN = rgb565(10, 179, 247) # VARASYS brand cyan / normal beat +C_MUTE = rgb565(120, 132, 148) +C_CYAN = rgb565(10, 179, 247) # brand cyan / normal beat C_AMBER = rgb565(255, 155, 46) # accent -C_VIOLET = rgb565(150, 100, 255) # ghost C_GREEN = rgb565(47, 224, 122) # running C_DIMDOT = rgb565(36, 50, 64) C_BTN = rgb565(28, 34, 44) -C_BTNHI = rgb565(40, 52, 66) -LEVEL_COL = {2: C_AMBER, 1: C_CYAN, 3: C_VIOLET, 0: C_DIMDOT} -LEVEL_RGB = {2: (255, 110, 0), 1: (0, 150, 255), 3: (130, 70, 255)} # WS2812 (logical r,g,b) +C_BTNHI = rgb565(44, 56, 72) +LEVEL_RGB = {2: (255, 110, 0), 1: (0, 150, 255), 3: (130, 70, 255)} # WS2812 accent / normal / ghost + +# ============================== ANTI-ALIASED FONTS (baked; see gen_font.py) ============================== +FONT_M_B64 = 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# big BPM number (DejaVuSans-Bold 78) + +def load_font(b64): + blob = a2b_base64(b64); count = blob[0]; p = 1; pixoff = 1 + count * 7; glyphs = {} + for _ in range(count): + cp = (blob[p] << 8) | blob[p + 1]; w = blob[p + 2]; h = blob[p + 3] + xoff = blob[p + 4]; xoff = xoff - 256 if xoff > 127 else xoff + top = blob[p + 5]; adv = blob[p + 6]; p += 7 + glyphs[cp] = (w, h, xoff, top, adv, pixoff); pixoff += (w * h + 1) // 2 + return (glyphs, blob) + +FONT_M = load_font(FONT_M_B64) +FONT_L = load_font(FONT_L_B64) # ============================== ST7796 DISPLAY ============================== class ST7796: @@ -86,7 +123,7 @@ class ST7796: self.cs = Pin(PIN_CS, Pin.OUT, value=1) self.dc = Pin(PIN_DC, Pin.OUT, value=0) self.rst = Pin(PIN_RST, Pin.OUT, value=1) - self._chunk = bytearray(1024) # scratch for fills (512 px) + self._chunk = bytearray(1024) self.reset(); self.init() def _cmd(self, c, data=None): @@ -100,29 +137,26 @@ class ST7796: def init(self): c = self._cmd - c(0x01); time.sleep_ms(120) # software reset - c(0x11); time.sleep_ms(120) # sleep out - c(0xF0, b'\xC3'); c(0xF0, b'\x96') # command set control (unlock) + c(0x01); time.sleep_ms(120) + c(0x11); time.sleep_ms(120) + c(0xF0, b'\xC3'); c(0xF0, b'\x96') c(0x36, bytes((MADCTL,))) - c(0x3A, b'\x55') # 16 bits/pixel (RGB565) - c(0xB4, b'\x01') # 1-dot inversion - c(0xB6, b'\x80\x02\x3B') # display function control + c(0x3A, b'\x55') + c(0xB4, b'\x01') + c(0xB6, b'\x80\x02\x3B') c(0xE8, b'\x40\x8A\x00\x00\x29\x19\xA5\x33') - c(0xC1, b'\x06') # power control 2 - c(0xC2, b'\xA7') # power control 3 - c(0xC5, b'\x18'); time.sleep_ms(120) # VCOM - c(0xE0, b'\xF0\x09\x0B\x06\x04\x15\x2F\x54\x42\x3C\x17\x14\x18\x1B') # +gamma - c(0xE1, b'\xE0\x09\x0B\x06\x04\x03\x2B\x43\x42\x3B\x16\x14\x17\x1B') # -gamma - c(0xF0, b'\x3C'); c(0xF0, b'\x69'); time.sleep_ms(120) # lock command set - c(0x21 if INVERT_COLORS else 0x20) # inversion on/off - c(0x29) # display on - time.sleep_ms(50) + c(0xC1, b'\x06'); c(0xC2, b'\xA7'); c(0xC5, b'\x18'); time.sleep_ms(120) + c(0xE0, b'\xF0\x09\x0B\x06\x04\x15\x2F\x54\x42\x3C\x17\x14\x18\x1B') + c(0xE1, b'\xE0\x09\x0B\x06\x04\x03\x2B\x43\x42\x3B\x16\x14\x17\x1B') + c(0xF0, b'\x3C'); c(0xF0, b'\x69'); time.sleep_ms(120) + c(0x21 if INVERT_COLORS else 0x20) + c(0x29); time.sleep_ms(50) def _window(self, x, y, w, h): x1, y1 = x + w - 1, y + h - 1 self._cmd(0x2A, bytes((x >> 8, x & 0xFF, x1 >> 8, x1 & 0xFF))) self._cmd(0x2B, bytes((y >> 8, y & 0xFF, y1 >> 8, y1 & 0xFF))) - self.cs(0); self.dc(0); self.spi.write(bytes((0x2C,))); self.dc(1) # leaves us mid-RAMWR + self.cs(0); self.dc(0); self.spi.write(bytes((0x2C,))); self.dc(1) def fill_rect(self, x, y, w, h, color): if w <= 0 or h <= 0: return @@ -137,49 +171,51 @@ class ST7796: def fill(self, color): self.fill_rect(0, 0, WIDTH, HEIGHT, color) - # text via the built-in 8x8 mono font, expanded to colour and integer-scaled - def text(self, s, x, y, fg, bg, scale=2): - if not s: return - w8 = len(s) * 8 - stride = w8 // 8 - mbuf = bytearray(stride * 8) - mfb = framebuf.FrameBuffer(mbuf, w8, 8, framebuf.MONO_HLSB) - mfb.fill(0); mfb.text(s, 0, 0, 1) - dw = w8 * scale - row = bytearray(dw * 2) - self._window(x, y, dw, 8 * scale) - for r in range(8): - base = r * stride - di = 0 - for col in range(w8): - bit = (mbuf[base + (col >> 3)] >> (7 - (col & 7))) & 1 - cpx = fg if bit else bg - for _ in range(scale): - row[di] = cpx[0]; row[di+1] = cpx[1]; di += 2 - for _ in range(scale): self.spi.write(row) - self.cs(1) + # ---- anti-aliased text (fg blended over bg via a 16-entry alpha LUT) ---- + def _lut(self, fg, bg): + fgv = (fg[0] << 8) | fg[1]; bgv = (bg[0] << 8) | bg[1] + fr = (fgv >> 11) & 0x1F; fg6 = (fgv >> 5) & 0x3F; fb = fgv & 0x1F + br = (bgv >> 11) & 0x1F; bg6 = (bgv >> 5) & 0x3F; bb = bgv & 0x1F + out = [] + for a in range(16): + t = a * 17 + r = (br*(255-t) + fr*t) // 255; gg = (bg6*(255-t) + fg6*t) // 255; b = (bb*(255-t) + fb*t) // 255 + v = (r << 11) | (gg << 5) | b; out.append((v >> 8, v & 0xFF)) + return out - def text_w(self, s, scale=2): return len(s) * 8 * scale + def text_w(self, s, font): + glyphs = font[0]; w = 0 + for ch in s: + g = glyphs.get(ord(ch)) + if g: w += g[4] + return w -# seven-segment digit renderer (for the big BPM) — no font, just rectangles -_SEG = { # a,b,c,d,e,f,g - '0': 0b1111110, '1': 0b0110000, '2': 0b1101101, '3': 0b1111001, - '4': 0b0110011, '5': 0b1011011, '6': 0b1011111, '7': 0b1110000, - '8': 0b1111111, '9': 0b1111011, ' ': 0b0000000, '-': 0b0000001, -} -def draw_digit(d, ch, x, y, W, H, T, on, off): - seg = _SEG.get(ch, 0); v = (H - 3 * T) // 2 - rects = [ - (x + T, y, W - 2*T, T, 6), # a top - (x + W - T, y + T, T, v, 5), # b top-right - (x + W - T, y + 2*T + v, T, v, 4), # c bottom-right - (x + T, y + H - T, W - 2*T, T, 3), # d bottom - (x, y + 2*T + v, T, v, 2), # e bottom-left - (x, y + T, T, v, 1), # f top-left - (x + T, y + T + v, W - 2*T, T, 0), # g middle - ] - for rx, ry, rw, rh, bitpos in rects: - d.fill_rect(rx, ry, rw, rh, on if (seg >> bitpos) & 1 else off) + def text_aa(self, s, x, y, fg, bg, font): + glyphs, blob = font; L = self._lut(fg, bg); pen = x + for ch in s: + g = glyphs.get(ord(ch)) + if not g: continue + w, h, xoff, top, adv, off = g + if w and h: + buf = bytearray(w * h * 2); di = 0; k = 0 + for _ in range(h): + for _ in range(w): + byte = blob[off + (k >> 1)] + e = L[(byte >> 4) if (k & 1) == 0 else (byte & 0xF)] + buf[di] = e[0]; buf[di+1] = e[1]; di += 2; k += 1 + self._window(pen + xoff, y + top, w, h); self.spi.write(buf); self.cs(1) + pen += adv + return pen + + def text_center(self, s, cx, cy, fg, bg, font): + tw = self.text_w(s, font); glyphs = font[0]; t0 = 999; b1 = 0 + for ch in s: + g = glyphs.get(ord(ch)) + if g and g[1]: + if g[3] < t0: t0 = g[3] + if g[3] + g[1] > b1: b1 = g[3] + g[1] + if t0 == 999: t0 = 0 + self.text_aa(s, cx - tw // 2, cy - (t0 + b1) // 2, fg, bg, font) # ============================== GT911 TOUCH ============================== class GT911: @@ -203,7 +239,7 @@ class GT911: b = self.i2c.readfrom_mem(self.addr, 0x8150, 4, addrsize=16) tx = b[0] | (b[1] << 8); ty = b[2] | (b[3] << 8) pt = self._map(tx, ty) - try: self.i2c.writeto_mem(self.addr, 0x814E, b'\x00', addrsize=16) # clear ready flag + try: self.i2c.writeto_mem(self.addr, 0x814E, b'\x00', addrsize=16) except OSError: pass return pt def _map(self, tx, ty): @@ -215,7 +251,7 @@ class GT911: return None # ============================== POLYMETER ENGINE ============================== -# program string: v1;t;[vol];[cd];[b];;;... +# program string: [v1;]t;;;... (globals like b/rmp/tr are ignored on-device) # lane = :[/[s]][=pattern][@db][~][!] # pattern chars: X=accent(2) x=normal(1) g=ghost(3) . - _ =mute(0) PAT = {'X': 2, 'x': 1, 'g': 3, '.': 0, '-': 0, '_': 0} @@ -228,7 +264,7 @@ def parse_program(s): if not tok: continue if tok[0] == 't' and tok[1:].isdigit(): bpm = int(tok[1:]); continue - if ':' not in tok: # skip v1, vol, cd, b and other globals we don't need on-device + if ':' not in tok: # skip v1, vol, cd, b, rmp, tr and other globals continue lane = _parse_lane(tok) if lane: lanes.append(lane) @@ -239,11 +275,8 @@ def _parse_lane(tok): poly = '~' in tok mute = '!' in tok tok = tok.replace('~', '').replace('!', '') - db = 0 if '@' in tok: - tok, _, rest = tok.partition('@') - try: db = int(rest) - except: db = 0 + tok = tok.partition('@')[0] sound, _, rest = tok.partition(':') pattern = None if '=' in rest: @@ -251,27 +284,23 @@ def _parse_lane(tok): sub = 1 if '/' in rest: rest, _, sd = rest.partition('/') - sd = sd.rstrip('s') # ignore swing flag on-device + sd = sd.rstrip('s') sub = int(sd) if sd.isdigit() else 1 - # grouping: "4" or "3+3+2" groups = [int(g) for g in rest.split('+') if g.isdigit()] or [4] beats = sum(groups) starts = set(); acc = 0 - for g in groups: starts.add(acc); acc += g + for gp in groups: starts.add(acc); acc += gp steps = beats * sub if pattern: - levels = [PAT.get(c, 0) for c in pattern] + levels = [PAT.get(ch, 0) for ch in pattern] if len(levels) < steps: levels += [0] * (steps - len(levels)) steps = len(levels) else: levels = [] for i in range(steps): - if i % sub == 0: - levels.append(2 if (i // sub) in starts else 1) - else: - levels.append(0) - return {'sound': sound, 'sub': sub, 'steps': steps, 'levels': levels, - 'poly': poly, 'mute': mute, 'db': db} + if i % sub == 0: levels.append(2 if (i // sub) in starts else 1) + else: levels.append(0) + return {'sound': sound, 'sub': sub, 'steps': steps, 'levels': levels, 'poly': poly, 'mute': mute} # ============================== APP ============================== class App: @@ -287,34 +316,28 @@ class App: self._aPrev = 1; self._bPrev = 1 self.jx = ADC(PIN_JOY_X); self.jy = ADC(PIN_JOY_Y) self._joyNext = 0 - self._touchLock = 0; self._unpressAt = 0; self._pending = None + self._unpressAt = 0; self._pending = None + self._touchDown = False; self._touchSeen = 0 self.running = False - self.bpm = 120 - self.idx = 0 - self.lanes = [] + self.bpm = 120; self.idx = 0; self.lanes = [] self.rgb = (0, 0, 0) - self.buttons = [] # touch hit zones: (x,y,w,h,key) + self.buttons = [] self.load(0) self.draw_static() - self.draw_bpm(force=True) - self.draw_status() - self.draw_dots(force=True) + self.draw_bpm(); self.draw_status(); self.draw_dots() # ---------- program ---------- def load(self, i): n = len(PROGRAMS); self.idx = i % n - name, prog = PROGRAMS[self.idx] - self.name = name + self.name, prog = PROGRAMS[self.idx] self.bpm, self.lanes = parse_program(prog) self.master = self.lanes[0] self.beat = -1 self._reset_clock() - def _reset_clock(self): now = time.ticks_us() for L in self.lanes: - L['next'] = now - L['step'] = -1 + L['next'] = now; L['step'] = -1 L['stepdur'] = int(60_000_000 / self.bpm / L['sub']) # ---------- audio + light ---------- @@ -322,19 +345,23 @@ class App: f = {2: 2300, 1: 1600, 3: 1050}.get(level, 1600) duty = {2: 42000, 1: 30000, 3: 14000}.get(level, 30000) self.buz.freq(f); self.buz.duty_u16(duty) - self.buz_off = time.ticks_add(time.ticks_us(), 22000) # 22 ms + self.buz_off = time.ticks_add(time.ticks_us(), 22000) def flash(self, level): self.rgb = LEVEL_RGB.get(level, (0, 150, 255)) if self.np: self.np[0] = self.rgb; self.np.write() + def led_off(self): + self.rgb = (0, 0, 0) + if self.np: self.np[0] = (0, 0, 0); self.np.write() # ---------- transport ---------- def toggle(self): self.running = not self.running if self.running: self._reset_clock(); self.beat = -1 - else: - self.buz.duty_u16(0) - if self.np: self.np[0] = (0, 0, 0); self.np.write() - self.draw_status(); self.draw_dots(force=True) + else: self.buz.duty_u16(0); self.led_off() + self.draw_status(); self.draw_dots(); self._redraw_play() + def _redraw_play(self): + for (x, y, w, h, key) in self.buttons: + if key == "play": self._draw_button(x, y, w, h, key); return def set_bpm(self, v): v = max(30, min(300, v)) if v != self.bpm: @@ -343,7 +370,7 @@ class App: self.draw_bpm() def goto(self, i): was = self.running; self.load(i) - self.draw_bpm(force=True); self.draw_status(); self.draw_dots(force=True) + self.draw_bpm(); self.draw_status(); self.draw_dots(); self._redraw_play() if was: self.running = True; self._reset_clock(); self.beat = -1 def tap(self): now = time.ticks_ms() @@ -354,7 +381,7 @@ class App: span = time.ticks_diff(self._taps[-1], self._taps[0]) / (len(self._taps) - 1) if span > 0: self.set_bpm(round(60000 / span)) - # ---------- scheduler (call often) ---------- + # ---------- scheduler ---------- def tick(self): now = time.ticks_us() if self.buz_off and time.ticks_diff(now, self.buz_off) >= 0: @@ -366,20 +393,18 @@ class App: L['step'] = (L['step'] + 1) % L['steps'] lvl = 0 if L['mute'] else L['levels'][L['step']] if lvl > 0: fired.append(lvl) - if L is self.master and L['step'] % L['sub'] == 0: - beat_hit = True + if L is self.master and L['step'] % L['sub'] == 0: beat_hit = True L['next'] = time.ticks_add(L['next'], L['stepdur']) if fired: - best = max(fired, key=lambda l: PRIO.get(l, 0)) # accent > normal > ghost + best = max(fired, key=lambda l: PRIO.get(l, 0)) self.click(best); self.flash(best) if beat_hit: - self.beat = (self.master['step'] // self.master['sub']) - self.draw_dots() - # fade the RGB between beats - if self.rgb != (0, 0, 0): - r, g, b = self.rgb; r = r*7//10; g = g*7//10; b = b*7//10 - self.rgb = (r, g, b) if (r + g + b) > 12 else (0, 0, 0) - if self.np: self.np[0] = self.rgb; self.np.write() + self.beat = (self.master['step'] // self.master['sub']); self.draw_dots() + # fade the RGB between beats (only while running) + if self.rgb != (0, 0, 0): + r, g, b = self.rgb; r = r*7//10; g = g*7//10; b = b*7//10 + self.rgb = (r, g, b) if (r + g + b) > 12 else (0, 0, 0) + if self.np: self.np[0] = self.rgb; self.np.write() # ---------- inputs ---------- def poll(self): @@ -389,31 +414,33 @@ class App: b = self.btnB.value() if b == 0 and self._bPrev == 1: self.tap() self._bPrev = b - # joystick: up/down = tempo, left/right = prev/next item (with repeat) now = time.ticks_ms() if time.ticks_diff(now, self._joyNext) >= 0: x = self.jx.read_u16() - 32768; y = self.jy.read_u16() - 32768 if JOY_INVERT_X: x = -x if JOY_INVERT_Y: y = -y - acted = False if abs(y) > JOY_DEADZONE: - self.set_bpm(self.bpm + (1 if y > 0 else -1) * (5 if abs(y) > 26000 else 1)); acted = True + self.set_bpm(self.bpm + (1 if y > 0 else -1) * (5 if abs(y) > 26000 else 1)) + self._joyNext = time.ticks_add(now, 70) elif abs(x) > JOY_DEADZONE: - self.goto(self.idx + (1 if x > 0 else -1)); acted = True - self._joyNext = time.ticks_add(now, 350); return - self._joyNext = time.ticks_add(now, 70 if acted else 20) - # touch — non-blocking: redraw a pressed button after its hold, debounce repeats + self.goto(self.idx + (1 if x > 0 else -1)); self._joyNext = time.ticks_add(now, 350); return + else: + self._joyNext = time.ticks_add(now, 20) if self._unpressAt and time.ticks_diff(now, self._unpressAt) >= 0: - x, y, w, h, key = self._pending; self._draw_button(x, y, w, h, key) - self._unpressAt = 0 - if time.ticks_diff(now, self._touchLock) >= 0: - pt = self.touch.read() - if pt: self.hit(pt[0], pt[1]) + x, y, w, h, key = self._pending; self._draw_button(x, y, w, h, key); self._unpressAt = 0 + # edge-detect the touch like the hardware buttons: act once on finger-DOWN, ignore held + pt = self.touch.read() + if pt: + self._touchSeen = now + if not self._touchDown: + self._touchDown = True; self.hit(pt[0], pt[1]) + elif self._touchDown and time.ticks_diff(now, self._touchSeen) > 140: + self._touchDown = False def hit(self, x, y): for bx, by, bw, bh, key in self.buttons: if bx <= x <= bx+bw and by <= y <= by+bh: - self.d.fill_rect(bx, by, bw, bh, C_BTNHI) # pressed flash + self.d.fill_rect(bx, by, bw, bh, C_BTNHI); self._btn_label(bx, by, bw, bh, key) if key == 'play': self.toggle() elif key == 'prev': self.goto(self.idx - 1) elif key == 'next': self.goto(self.idx + 1) @@ -422,70 +449,63 @@ class App: elif key == 'tap': self.tap() self._pending = (bx, by, bw, bh, key) self._unpressAt = time.ticks_add(time.ticks_ms(), 120) - self._touchLock = time.ticks_add(time.ticks_ms(), 280) # ignore held finger return # ---------- drawing ---------- def draw_static(self): d = self.d; d.fill(C_BG) - d.text("PM_K-1 KIT", 12, 12, C_CYAN, C_BG, 2) # VARASYS logo is on the case, not the screen - d.fill_rect(0, 34, WIDTH, 2, C_PANEL) - d.text("BPM", 12, 196, C_MUTE, C_BG, 2) - # build + paint the touch buttons + d.text_aa("PM_K-1 KIT", 12, 10, C_CYAN, C_BG, FONT_M) # VARASYS logo is on the case, not the screen + d.fill_rect(0, 42, WIDTH, 2, C_PANEL) + d.text_aa("BPM", 12, 120, C_MUTE, C_BG, FONT_M) self.buttons = [] - row1 = 300; bw = 96; bh = 54; gap = (WIDTH - 3*bw) // 4 - xs = [gap, gap*2 + bw, gap*3 + bw*2] - for x, key in zip(xs, ('prev', 'play', 'next')): - self.buttons.append((x, row1, bw, bh, key)); self._draw_button(x, row1, bw, bh, key) - row2 = row1 + bh + 16 - for x, key in zip(xs, ('minus', 'tap', 'plus')): - self.buttons.append((x, row2, bw, bh, key)); self._draw_button(x, row2, bw, bh, key) - d.text("joystick: tempo / item button A: play B: tap", 12, HEIGHT - 20, C_MUTE, C_BG, 1) + bw = 96; bh = 56; gap = (WIDTH - 3*bw) // 4; xs = [gap, gap*2+bw, gap*3+bw*2] + for x, key in zip(xs, ("prev", "play", "next")): + self.buttons.append((x, 300, bw, bh, key)); self._draw_button(x, 300, bw, bh, key) + for x, key in zip(xs, ("minus", "tap", "plus")): + self.buttons.append((x, 372, bw, bh, key)); self._draw_button(x, 372, bw, bh, key) def _draw_button(self, x, y, w, h, key): d = self.d; d.fill_rect(x, y, w, h, C_BTN) d.fill_rect(x, y, w, 2, C_PANEL); d.fill_rect(x, y+h-2, w, 2, C_PANEL) - label = {'prev':'<<','play':'>||','next':'>>','minus':'-','plus':'+','tap':'TAP'}[key] - col = C_GREEN if key == 'play' else C_TXT - sc = 3 if key in ('minus','plus') else 2 - tw = d.text_w(label, sc) - d.text(label, x + (w - tw)//2, y + (h - 8*sc)//2, col, C_BTN, sc) + self._btn_label(x, y, w, h, key) + def _btn_label(self, x, y, w, h, key): + sym = {"prev": "◀◀", "next": "▶▶", "minus": "-", "plus": "+", "tap": "TAP", + "play": "■" if self.running else "▶"}[key] + col = C_GREEN if key == "play" else C_TXT + bg = C_BTNHI if False else C_BTN + self.d.text_center(sym, x + w//2, y + h//2, col, bg, FONT_M) - def draw_bpm(self, force=False): - d = self.d - s = "%3d" % self.bpm - W = 64; H = 96; T = 12; gap = 12; x0 = WIDTH - 12 - (3*W + 2*gap); y0 = 92 - for i, ch in enumerate(s): - draw_digit(d, ch, x0 + i*(W+gap), y0, W, H, T, C_TXT, C_BG) + def draw_bpm(self): + d = self.d; s = str(self.bpm) + d.fill_rect(60, 84, WIDTH - 60, 96, C_BG) + tw = d.text_w(s, FONT_L) + d.text_aa(s, WIDTH - 14 - tw, 90, C_TXT, C_BG, FONT_L) def draw_status(self): - d = self.d - d.fill_rect(0, 240, WIDTH, 40, C_BG) - st = ">RUN" if self.running else "=STOP" - d.text(st, 12, 244, C_GREEN if self.running else C_MUTE, C_BG, 2) - nm = self.name[:18] - d.text(nm, WIDTH - d.text_w(nm, 2) - 12, 244, C_TXT, C_BG, 2) - d.text("%d/%d" % (self.idx+1, len(PROGRAMS)), 12, 266, C_MUTE, C_BG, 1) + d = self.d; d.fill_rect(0, 236, WIDTH, 58, C_BG) + d.text_aa("▶ RUN" if self.running else "■ STOP", 12, 240, + C_GREEN if self.running else C_MUTE, C_BG, FONT_M) + idx = "%d/%d" % (self.idx + 1, len(PROGRAMS)); tw = d.text_w(idx, FONT_M) + d.text_aa(idx, WIDTH - 12 - tw, 240, C_MUTE, C_BG, FONT_M) + d.text_aa(self.name[:26], 12, 268, C_TXT, C_BG, FONT_M) - def draw_dots(self, force=False): + def draw_dots(self): d = self.d; m = self.master bpb = max(1, m['steps'] // m['sub']) yy = 200; sz = 18; sp = 26 x0 = max(12, WIDTH - 12 - bpb * sp) - d.fill_rect(0, yy, WIDTH, sz, C_BG) # clear the dot row + d.fill_rect(0, yy, WIDTH, sz, C_BG) for i in range(bpb): - lvl = m['levels'][(i*m['sub']) % m['steps']] # accent (2) shows amber when lit + lvl = m['levels'][(i*m['sub']) % m['steps']] on = self.running and i == self.beat col = (C_AMBER if lvl == 2 else C_CYAN) if on else C_DIMDOT d.fill_rect(x0 + i*sp, yy, sz, sz, col) def run(self): if self.touch.addr is None: - self.d.text("touch: not found", 12, HEIGHT - 40, C_AMBER, C_BG, 1) + self.d.text_aa("touch: not found", 12, HEIGHT - 30, C_AMBER, C_BG, FONT_M) while True: - self.tick() - self.poll() - time.sleep_us(200) + self.tick(); self.poll(); time.sleep_us(200) # ============================== GO ============================== App().run()