feat: Intel HDA audio driver, audio streaming syscalls, userspace Music app, fixes and improvements, rudimentary Bluetooth support

This commit is contained in:
2026-03-10 17:14:33 +01:00
parent 807c2602fe
commit 576ad34f95
58 changed files with 11275 additions and 137 deletions
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# Makefile for volume (standalone Volume Control) on MontaukOS
# Copyright (c) 2026 Daniel Hammer
MAKEFLAGS += -rR
.SUFFIXES:
# ---- Toolchain ----
TOOLCHAIN_PREFIX := $(shell cd ../../.. && pwd)/toolchain/local/bin/x86_64-elf-
ifneq ($(wildcard $(TOOLCHAIN_PREFIX)gcc),)
CXX := $(TOOLCHAIN_PREFIX)g++
else
CXX := g++
endif
# ---- Paths ----
PROG_INC := ../../include
LINK_LD := ../../link.ld
BINDIR := ../../bin
OBJDIR := obj
LIBDIR := ../../lib
# ---- Compiler flags ----
CXXFLAGS := \
-std=gnu++20 \
-g -O2 -pipe \
-Wall \
-Wextra \
-Wno-unused-parameter \
-Wno-unused-function \
-nostdinc \
-ffreestanding \
-fno-stack-protector \
-fno-stack-check \
-fno-PIC \
-fno-rtti \
-fno-exceptions \
-ffunction-sections \
-fdata-sections \
-m64 \
-march=x86-64 \
-msse \
-msse2 \
-mno-red-zone \
-mcmodel=small \
-I $(PROG_INC) \
-isystem $(PROG_INC)/libc \
-isystem ../../../kernel/freestnd-c-hdrs/x86_64/include \
-isystem ../../../kernel/freestnd-cxx-hdrs/x86_64/include
# ---- Linker flags ----
LDFLAGS := \
-nostdlib \
-static \
-Wl,--build-id=none \
-Wl,--gc-sections \
-Wl,-m,elf_x86_64 \
-z max-page-size=0x1000 \
-T $(LINK_LD)
# ---- Source files ----
SRCS := main.cpp stb_truetype_impl.cpp
OBJS := $(addprefix $(OBJDIR)/,$(SRCS:.cpp=.o))
# ---- Target ----
TARGET := $(BINDIR)/apps/volume/volume.elf
.PHONY: all clean
all: $(TARGET)
$(TARGET): $(OBJS) $(LINK_LD) Makefile
mkdir -p $(BINDIR)/apps/volume
$(CXX) $(CXXFLAGS) $(LDFLAGS) $(OBJS) $(LIBDIR)/libc/liblibc.a -o $@
$(OBJDIR)/%.o: %.cpp Makefile
mkdir -p $(OBJDIR)
$(CXX) $(CXXFLAGS) -c $< -o $@
clean:
rm -rf $(OBJDIR) $(TARGET)
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/*
* main.cpp
* MontaukOS Volume Control
* Copyright (c) 2026 Daniel Hammer
*/
#include <montauk/syscall.h>
#include <montauk/string.h>
#include <montauk/heap.h>
#include <gui/gui.hpp>
#include <gui/truetype.hpp>
extern "C" {
#include <string.h>
#include <stdio.h>
}
using namespace gui;
// ============================================================================
// Constants
// ============================================================================
static constexpr int WIN_W = 280;
static constexpr int WIN_H = 164;
static constexpr int FONT_SIZE = 16;
static constexpr int FONT_SIZE_LG = 28;
static constexpr int SLIDER_X = 24;
static constexpr int SLIDER_W = WIN_W - 48;
static constexpr int SLIDER_Y = 78;
static constexpr int SLIDER_H = 8;
static constexpr int KNOB_R = 10;
static constexpr int BTN_W = 48;
static constexpr int BTN_H = 28;
static constexpr int BTN_Y = 118;
static constexpr int BTN_RAD = 6;
static constexpr Color BG_COLOR = Color::from_rgb(0xFF, 0xFF, 0xFF);
static constexpr Color TEXT_COLOR = Color::from_rgb(0x22, 0x22, 0x22);
static constexpr Color DIM_TEXT = Color::from_rgb(0x66, 0x66, 0x66);
static constexpr Color ACCENT = Color::from_rgb(0x36, 0x7B, 0xF0);
static constexpr Color ACCENT_HOVER = Color::from_rgb(0x2A, 0x62, 0xC8);
static constexpr Color TRACK_BG = Color::from_rgb(0xDD, 0xDD, 0xDD);
static constexpr Color WHITE = Color::from_rgb(0xFF, 0xFF, 0xFF);
static constexpr Color MUTE_COLOR = Color::from_rgb(0xCC, 0x33, 0x33);
// ============================================================================
// State
// ============================================================================
static TrueTypeFont* g_font = nullptr;
static int g_volume = 80;
static bool g_muted = false;
static int g_pre_mute_vol = 80;
static bool g_dragging = false;
// ============================================================================
// Pixel helpers (same pattern as disks app)
// ============================================================================
static void px_fill(uint32_t* px, int bw, int bh,
int x, int y, int w, int h, Color c) {
uint32_t v = c.to_pixel();
int x0 = x < 0 ? 0 : x, y0 = y < 0 ? 0 : y;
int x1 = x + w > bw ? bw : x + w;
int y1 = y + h > bh ? bh : y + h;
for (int row = y0; row < y1; row++)
for (int col = x0; col < x1; col++)
px[row * bw + col] = v;
}
static void px_hline(uint32_t* px, int bw, int bh, int x, int y, int w, Color c) {
if (y < 0 || y >= bh) return;
uint32_t v = c.to_pixel();
int x0 = x < 0 ? 0 : x;
int x1 = x + w > bw ? bw : x + w;
for (int col = x0; col < x1; col++)
px[y * bw + col] = v;
}
static void px_fill_rounded(uint32_t* px, int bw, int bh,
int x, int y, int w, int h, int r, Color c) {
uint32_t v = c.to_pixel();
for (int row = 0; row < h; row++) {
int dy = y + row;
if (dy < 0 || dy >= bh) continue;
for (int col = 0; col < w; col++) {
int dx = x + col;
if (dx < 0 || dx >= bw) continue;
bool skip = false;
int cx, cy;
if (col < r && row < r) { cx = r - col - 1; cy = r - row - 1; if (cx*cx + cy*cy >= r*r) skip = true; }
else if (col >= w - r && row < r) { cx = col - (w - r); cy = r - row - 1; if (cx*cx + cy*cy >= r*r) skip = true; }
else if (col < r && row >= h - r) { cx = r - col - 1; cy = row - (h - r); if (cx*cx + cy*cy >= r*r) skip = true; }
else if (col >= w - r && row >= h - r) { cx = col - (w - r); cy = row - (h - r); if (cx*cx + cy*cy >= r*r) skip = true; }
if (!skip) px[dy * bw + dx] = v;
}
}
}
static void px_circle(uint32_t* px, int bw, int bh,
int cx, int cy, int r, Color c) {
uint32_t v = c.to_pixel();
for (int dy = -r; dy <= r; dy++) {
int py = cy + dy;
if (py < 0 || py >= bh) continue;
for (int dx = -r; dx <= r; dx++) {
int ppx = cx + dx;
if (ppx < 0 || ppx >= bw) continue;
if (dx * dx + dy * dy <= r * r)
px[py * bw + ppx] = v;
}
}
}
static void px_text(uint32_t* px, int bw, int bh,
int x, int y, const char* text, Color c, int size = FONT_SIZE) {
if (g_font)
g_font->draw_to_buffer(px, bw, bh, x, y, text, c, size);
}
static int text_w(const char* text, int size = FONT_SIZE) {
return g_font ? g_font->measure_text(text, size) : 0;
}
static int font_h(int size = FONT_SIZE) {
if (!g_font) return 16;
auto* cache = g_font->get_cache(size);
return cache->ascent - cache->descent;
}
static void px_button(uint32_t* px, int bw, int bh,
int x, int y, int w, int h,
const char* label, Color bg, Color fg, int r) {
px_fill_rounded(px, bw, bh, x, y, w, h, r, bg);
int tw = text_w(label);
int fh = font_h();
px_text(px, bw, bh, x + (w - tw) / 2, y + (h - fh) / 2, label, fg);
}
// ============================================================================
// Volume helpers
// ============================================================================
static void apply_volume(int vol) {
if (vol < 0) vol = 0;
if (vol > 100) vol = 100;
g_volume = vol;
montauk::audio_set_volume(0, g_volume);
}
static void refresh_volume() {
int v = montauk::audio_get_volume(0);
if (v >= 0) g_volume = v;
}
// ============================================================================
// Render
// ============================================================================
static void render(uint32_t* pixels) {
int fh_lg = font_h(FONT_SIZE_LG);
// Background
px_fill(pixels, WIN_W, WIN_H, 0, 0, WIN_W, WIN_H, BG_COLOR);
// Volume percentage (large, centered)
char vol_str[8];
snprintf(vol_str, sizeof(vol_str), "%d%%", g_muted ? 0 : g_volume);
int vw = text_w(vol_str, FONT_SIZE_LG);
Color vol_color = g_muted ? MUTE_COLOR : ACCENT;
px_text(pixels, WIN_W, WIN_H, (WIN_W - vw) / 2, 20, vol_str, vol_color, FONT_SIZE_LG);
// "Muted" label
if (g_muted) {
const char* muted_label = "Muted";
int mw = text_w(muted_label);
px_text(pixels, WIN_W, WIN_H, (WIN_W - mw) / 2,
20 + fh_lg + 4, muted_label, MUTE_COLOR);
}
// Slider track
px_fill_rounded(pixels, WIN_W, WIN_H, SLIDER_X, SLIDER_Y, SLIDER_W, SLIDER_H, 4, TRACK_BG);
// Filled portion
int display_vol = g_muted ? 0 : g_volume;
int fill_w = (display_vol * SLIDER_W) / 100;
if (fill_w > 0)
px_fill_rounded(pixels, WIN_W, WIN_H, SLIDER_X, SLIDER_Y, fill_w, SLIDER_H, 4, ACCENT);
// Knob
int knob_x = SLIDER_X + fill_w;
int knob_y = SLIDER_Y + SLIDER_H / 2;
px_circle(pixels, WIN_W, WIN_H, knob_x, knob_y, KNOB_R, ACCENT);
px_circle(pixels, WIN_W, WIN_H, knob_x, knob_y, KNOB_R - 3, WHITE);
// Buttons: [-] and [+] and [Mute]
int total_btn_w = BTN_W * 2 + 60 + 12 * 2; // minus, plus, mute + gaps
int bx = (WIN_W - total_btn_w) / 2;
px_button(pixels, WIN_W, WIN_H, bx, BTN_Y, BTN_W, BTN_H,
"-", Color::from_rgb(0xE0, 0xE0, 0xE0), TEXT_COLOR, BTN_RAD);
bx += BTN_W + 12;
px_button(pixels, WIN_W, WIN_H, bx, BTN_Y, BTN_W, BTN_H,
"+", Color::from_rgb(0xE0, 0xE0, 0xE0), TEXT_COLOR, BTN_RAD);
bx += BTN_W + 12;
Color mute_bg = g_muted ? MUTE_COLOR : Color::from_rgb(0xE0, 0xE0, 0xE0);
Color mute_fg = g_muted ? WHITE : TEXT_COLOR;
px_button(pixels, WIN_W, WIN_H, bx, BTN_Y, 60, BTN_H,
"Mute", mute_bg, mute_fg, BTN_RAD);
}
// ============================================================================
// Hit testing
// ============================================================================
static int vol_from_slider_x(int mx) {
int v = ((mx - SLIDER_X) * 100) / SLIDER_W;
if (v < 0) v = 0;
if (v > 100) v = 100;
return v;
}
static bool handle_click(int mx, int my) {
// Slider area (generous vertical hit zone)
if (my >= SLIDER_Y - KNOB_R && my <= SLIDER_Y + SLIDER_H + KNOB_R &&
mx >= SLIDER_X - KNOB_R && mx <= SLIDER_X + SLIDER_W + KNOB_R) {
g_muted = false;
apply_volume(vol_from_slider_x(mx));
g_dragging = true;
return true;
}
// Buttons
int total_btn_w = BTN_W * 2 + 60 + 12 * 2;
int bx = (WIN_W - total_btn_w) / 2;
if (my >= BTN_Y && my < BTN_Y + BTN_H) {
// [-] button
if (mx >= bx && mx < bx + BTN_W) {
g_muted = false;
apply_volume(g_volume - 5);
return true;
}
bx += BTN_W + 12;
// [+] button
if (mx >= bx && mx < bx + BTN_W) {
g_muted = false;
apply_volume(g_volume + 5);
return true;
}
bx += BTN_W + 12;
// [Mute] button
if (mx >= bx && mx < bx + 60) {
if (g_muted) {
g_muted = false;
apply_volume(g_pre_mute_vol);
} else {
g_pre_mute_vol = g_volume;
g_muted = true;
montauk::audio_set_volume(0, 0);
}
return true;
}
}
return false;
}
// ============================================================================
// Entry point
// ============================================================================
extern "C" void _start() {
// Load font
{
TrueTypeFont* f = (TrueTypeFont*)montauk::malloc(sizeof(TrueTypeFont));
if (f) {
montauk::memset(f, 0, sizeof(TrueTypeFont));
if (!f->init("0:/fonts/Roboto-Medium.ttf")) { montauk::mfree(f); f = nullptr; }
}
g_font = f;
}
refresh_volume();
// Create window
Montauk::WinCreateResult wres;
if (montauk::win_create("Volume", WIN_W, WIN_H, &wres) < 0 || wres.id < 0)
montauk::exit(1);
int win_id = wres.id;
uint32_t* pixels = (uint32_t*)(uintptr_t)wres.pixelVa;
render(pixels);
montauk::win_present(win_id);
while (true) {
Montauk::WinEvent ev;
int r = montauk::win_poll(win_id, &ev);
if (r < 0) break;
if (r == 0) { montauk::sleep_ms(16); continue; }
bool redraw = false;
if (ev.type == 3) break; // close
// Keyboard
if (ev.type == 0 && ev.key.pressed) {
if (ev.key.scancode == 0x01) break; // Escape
if (ev.key.scancode == 0x4D || ev.key.ascii == '+' || ev.key.ascii == '=') { // Right / +
g_muted = false;
apply_volume(g_volume + 5);
redraw = true;
} else if (ev.key.scancode == 0x4B || ev.key.ascii == '-') { // Left / -
g_muted = false;
apply_volume(g_volume - 5);
redraw = true;
} else if (ev.key.ascii == 'm' || ev.key.ascii == 'M') {
if (g_muted) {
g_muted = false;
apply_volume(g_pre_mute_vol);
} else {
g_pre_mute_vol = g_volume;
g_muted = true;
montauk::audio_set_volume(0, 0);
}
redraw = true;
}
}
// Mouse
if (ev.type == 1) {
bool clicked = (ev.mouse.buttons & 1) && !(ev.mouse.prev_buttons & 1);
bool released = !(ev.mouse.buttons & 1) && (ev.mouse.prev_buttons & 1);
if (clicked) {
if (handle_click(ev.mouse.x, ev.mouse.y))
redraw = true;
}
if (g_dragging && (ev.mouse.buttons & 1)) {
g_muted = false;
apply_volume(vol_from_slider_x(ev.mouse.x));
redraw = true;
}
if (released) {
g_dragging = false;
}
}
if (redraw) {
render(pixels);
montauk::win_present(win_id);
}
}
montauk::win_destroy(win_id);
montauk::exit(0);
}
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[app]
name = "Volume"
binary = "volume.elf"
icon = "pavucontrol.svg"
[menu]
category = "System"
visible = true
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/*
* stb_truetype_impl.cpp
* Single compilation unit for stb_truetype in MontaukOS freestanding environment
* Copyright (c) 2026 Daniel Hammer
*/
#include <cstdint>
#include <cstddef>
#include <montauk/heap.h>
#include <montauk/string.h>
#include <gui/stb_math.h>
// Override all stb_truetype dependencies before including the implementation
#define STBTT_ifloor(x) ((int) stb_floor(x))
#define STBTT_iceil(x) ((int) stb_ceil(x))
#define STBTT_sqrt(x) stb_sqrt(x)
#define STBTT_pow(x,y) stb_pow(x,y)
#define STBTT_fmod(x,y) stb_fmod(x,y)
#define STBTT_cos(x) stb_cos(x)
#define STBTT_acos(x) stb_acos(x)
#define STBTT_fabs(x) stb_fabs(x)
#define STBTT_malloc(x,u) ((void)(u), montauk::malloc(x))
#define STBTT_free(x,u) ((void)(u), montauk::mfree(x))
#define STBTT_memcpy(d,s,n) montauk::memcpy(d,s,n)
#define STBTT_memset(d,v,n) montauk::memset(d,v,n)
#define STBTT_strlen(x) montauk::slen(x)
#define STBTT_assert(x) ((void)(x))
#define STB_TRUETYPE_IMPLEMENTATION
#include <gui/stb_truetype.h>