diff options
Diffstat (limited to 'bin')
| -rw-r--r-- | bin/.gitignore | 2 | ||||
| -rw-r--r-- | bin/Makefile | 26 | ||||
| -rw-r--r-- | bin/README | 10 | ||||
| -rw-r--r-- | bin/bin.7 | 22 | ||||
| -rw-r--r-- | bin/brot.c | 151 | ||||
| -rw-r--r-- | bin/gfx-cocoa.m | 162 | ||||
| -rw-r--r-- | bin/gfx-fb.c | 87 | ||||
| -rw-r--r-- | bin/gfx-x11.c | 135 | ||||
| -rw-r--r-- | bin/gfx.h | 24 | ||||
| -rw-r--r-- | bin/gfxx.c | 470 | ||||
| -rw-r--r-- | bin/man1/brot.1 | 63 | ||||
| -rw-r--r-- | bin/man1/gfxx.1 | 138 |
12 files changed, 1284 insertions, 6 deletions
diff --git a/bin/.gitignore b/bin/.gitignore index 5171e93d..b7d25952 100644 --- a/bin/.gitignore +++ b/bin/.gitignore @@ -1,9 +1,11 @@ *.o atch bri +brot dtch fbatt fbclock +gfxx glitch hnel modem diff --git a/bin/Makefile b/bin/Makefile index 9ac12f16..655fc4e0 100644 --- a/bin/Makefile +++ b/bin/Makefile @@ -1,5 +1,11 @@ PREFIX = ~/.local MANDIR = $(PREFIX)/share/man +GFX = cocoa + +CFLAGS += -std=c11 -Wall -Wextra -Wpedantic +LDLIBS = -lm -lutil -lz +LDLIBS_cocoa = $(LDLIBS) -framework Cocoa +LDLIBS_x11 = $(LDLIBS) -lX11 BINS += atch BINS += dtch @@ -24,11 +30,13 @@ BINS_LINUX += fbatt BINS_LINUX += fbclock BINS_LINUX += psfed -BINS_ALL = $(BINS) $(BINS_BSD) $(BINS_LINUX) +BINS_GFX += brot +BINS_GFX += gfxx + +BINS_ALL = $(BINS) $(BINS_BSD) $(BINS_LINUX) $(BINS_GFX) MAN1_ALL = $(BINS_ALL:%=man1/%.1) -CFLAGS += -std=c11 -Wall -Wextra -Wpedantic -LDLIBS = -lm -lutil -lz +GFX_OBJ = gfx-$(GFX).o any: .gitignore tags $(BINS) @@ -36,19 +44,29 @@ bsd: any $(BINS_BSD) linux: any $(BINS_LINUX) +gfx: any $(BINS_GFX) + .o: $(CC) $(LDFLAGS) $< $(LDLIBS) -o $@ scheme.h: scheme ./scheme -c > scheme.h +brot.o gfxx.o gfx-cocoa.o gfx-fb.o gfx-x11.o: gfx.h + fbatt.o fbclock.o: scheme.h -psf2png.o scheme.o: png.h +gfxx.o psf2png.o scheme.o: png.h atch: dtch ln -f dtch atch +brot: brot.o $(GFX_OBJ) + $(CC) $(LDFLAGS) $@.o $(GFX_OBJ) $(LDLIBS_$(GFX)) -o $@ + +gfxx: gfxx.o $(GFX_OBJ) + $(CC) $(LDFLAGS) $@.o $(GFX_OBJ) $(LDLIBS_$(GFX)) -o $@ + open pbcopy pbpaste: pbd ln -f pbd $@ diff --git a/bin/README b/bin/README index 0de6d849..a0353b53 100644 --- a/bin/README +++ b/bin/README @@ -8,9 +8,11 @@ DESCRIPTION target Linux. bri(1) backlight brightness control + brot(1) Mandelbrot renderer dtch(1) detached sessions fbatt(1) framebuffer battery indicator fbclock(1) framebuffer clock + gfxx(1) graphics data explorer glitch(1) PNG glitcher hnel(1) PTY input remapper modem(1) fixed baud rate wrapper @@ -23,4 +25,10 @@ DESCRIPTION wat(1) watch files xx(1) hexdump -Causal Agency December 2, 2018 Causal Agency + To build graphical tools, set one of: + + GFX=cocoa + GFX=fb + GFX=x11 + +Causal Agency January 17, 2019 Causal Agency diff --git a/bin/bin.7 b/bin/bin.7 index 4c5df7f0..c8b876a4 100644 --- a/bin/bin.7 +++ b/bin/bin.7 @@ -1,4 +1,4 @@ -.Dd December 2, 2018 +.Dd January 17, 2019 .Dt BIN 7 .Os "Causal Agency" . @@ -19,6 +19,9 @@ Some tools target Linux. .It Xr bri 1 backlight brightness control . +.It Xr brot 1 +Mandelbrot renderer +. .It Xr dtch 1 detached sessions . @@ -28,6 +31,9 @@ framebuffer battery indicator .It Xr fbclock 1 framebuffer clock . +.It Xr gfxx 1 +graphics data explorer +. .It Xr glitch 1 PNG glitcher . @@ -61,3 +67,17 @@ watch files .It Xr xx 1 hexdump .El +. +.Pp +To build graphical tools, +set one of: +. +.Pp +.Bl -item -offset indent -compact +.It +.Va GFX Ns = Ns Cm cocoa +.It +.Va GFX Ns = Ns Cm fb +.It +.Va GFX Ns = Ns Cm x11 +.El diff --git a/bin/brot.c b/bin/brot.c new file mode 100644 index 00000000..e7ac442d --- /dev/null +++ b/bin/brot.c @@ -0,0 +1,151 @@ +/* Copyright (C) 2018 C. McEnroe <june@causal.agency> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <complex.h> +#include <err.h> +#include <math.h> +#include <stdbool.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sysexits.h> +#include <time.h> +#include <unistd.h> + +#include "gfx.h" + +static uint32_t rgb(uint8_t r, uint8_t g, uint8_t b) { + return (uint32_t)r << 16 | (uint32_t)g << 8 | (uint32_t)b; +} +static uint32_t gray(uint8_t n) { + return rgb(n, n, n); +} + +static double absSq(double complex z) { + return creal(z) * creal(z) + cimag(z) * cimag(z); +} + +static uint32_t depth = 50; + +static uint32_t mandelbrot(double complex c) { + double complex z = 0; + for (uint32_t i = 0; i < depth; ++i) { + if (absSq(z) > 4.0) return i; + z = z * z + c; + } + return 0; +} + +static double complex translate = -0.75; +static double complex transform = 2.5; + +static uint32_t samples = 1; + +static void sample(uint32_t *buf, size_t width, size_t height) { + double yRatio = (height > width) ? (double)height / (double)width : 1.0; + double xRatio = (width > height) ? (double)width / (double)height : 1.0; + + memset(buf, 0, 4 * width * height); + size_t superWidth = width * samples; + size_t superHeight = height * samples; + for (size_t y = 0; y < superHeight; ++y) { + for (size_t x = 0; x < superWidth; ++x) { + double zx = (((double)x + 0.5) / (double)superWidth - 0.5) * xRatio; + double zy = (((double)y + 0.5) / (double)superHeight - 0.5) * yRatio; + uint32_t n = mandelbrot((zx + zy * I) * transform + translate); + buf[(y / samples) * width + (x / samples)] += n; + } + } +} + +static void color(uint32_t *buf, size_t width, size_t height) { + for (size_t i = 0; i < width * height; ++i) { + buf[i] = gray(255 * buf[i] / samples / samples / depth); + } +} + +static double frameTime; +void draw(uint32_t *buf, size_t width, size_t height) { + clock_t t0 = clock(); + sample(buf, width, height); + color(buf, width, height); + frameTime = (double)(clock() - t0) / (double)CLOCKS_PER_SEC; +} + +static double translateStep = 1.0 / 128.0; +static double rotateStep = 1.0 / 128.0; +static double scaleStep = 1.0 / 32.0; + +bool input(char in) { + const double PI = acos(-1.0); + switch (in) { + break; case 'q': return false; + break; case '.': depth++; + break; case ',': if (depth > 1) depth--; + break; case 'l': translate += translateStep * transform; + break; case 'h': translate -= translateStep * transform; + break; case 'j': translate += translateStep * I * transform; + break; case 'k': translate -= translateStep * I * transform; + break; case 'u': transform *= cexp(rotateStep * PI * I); + break; case 'i': transform /= cexp(rotateStep * PI * I); + break; case '+': transform *= 1.0 - scaleStep; + break; case '-': transform /= 1.0 - scaleStep; + break; case '0': translate = -0.75; transform = 2.5; + break; case ']': samples++; + break; case '[': if (samples > 1) samples--; + } + return true; +} + +const char *status(void) { + static char buf[256]; + snprintf( + buf, sizeof(buf), + "brot -s %u -i %u -t %g%+gi -f %g%+gi # %.6f", + samples, depth, + creal(translate), cimag(translate), + creal(transform), cimag(transform), + frameTime + ); + return buf; +} + +static double complex parseComplex(const char *str) { + double real = 0.0, imag = 0.0; + real = strtod(str, (char **)&str); + if (str[0] == 'i') { + imag = real; + real = 0.0; + } else if (str[0]) { + imag = strtod(str, NULL); + } + return real + imag * I; +} + +int init(int argc, char *argv[]) { + int opt; + while (0 < (opt = getopt(argc, argv, "f:i:s:t:"))) { + switch (opt) { + break; case 'f': transform = parseComplex(optarg); + break; case 'i': depth = strtoul(optarg, NULL, 0); + break; case 's': samples = strtoul(optarg, NULL, 0); + break; case 't': translate = parseComplex(optarg); + break; default: return EX_USAGE; + } + } + return EX_OK; +} diff --git a/bin/gfx-cocoa.m b/bin/gfx-cocoa.m new file mode 100644 index 00000000..7e7b7643 --- /dev/null +++ b/bin/gfx-cocoa.m @@ -0,0 +1,162 @@ +/* Copyright (C) 2018 C. McEnroe <june@causal.agency> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#import <Cocoa/Cocoa.h> +#import <err.h> +#import <stdbool.h> +#import <stdint.h> +#import <stdlib.h> +#import <sysexits.h> + +#import "gfx.h" + +@interface BufferView : NSView { + size_t bufSize; + uint32_t *buf; + CGColorSpaceRef colorSpace; + CGDataProviderRef dataProvider; +} +@end + +@implementation BufferView +- (instancetype) initWithFrame: (NSRect) frameRect { + colorSpace = CGColorSpaceCreateDeviceRGB(); + return [super initWithFrame: frameRect]; +} + +- (void) setWindowTitle { + [[self window] setTitle: [NSString stringWithUTF8String: status()]]; +} + +- (void) draw { + draw(buf, [self frame].size.width, [self frame].size.height); + [self setNeedsDisplay: YES]; +} + +- (void) setFrameSize: (NSSize) newSize { + [super setFrameSize: newSize]; + size_t newBufSize = 4 * newSize.width * newSize.height; + if (newBufSize > bufSize) { + bufSize = newBufSize; + buf = malloc(bufSize); + if (!buf) err(EX_OSERR, "malloc(%zu)", bufSize); + CGDataProviderRelease(dataProvider); + dataProvider = CGDataProviderCreateWithData(NULL, buf, bufSize, NULL); + } + [self draw]; +} + +- (void) drawRect: (NSRect) dirtyRect { + (void)dirtyRect; + NSSize size = [self frame].size; + CGContextRef ctx = [[NSGraphicsContext currentContext] CGContext]; + CGImageRef image = CGImageCreate( + size.width, size.height, + 8, 32, 4 * size.width, + colorSpace, kCGBitmapByteOrder32Little | kCGImageAlphaNoneSkipFirst, + dataProvider, + NULL, false, kCGRenderingIntentDefault + ); + CGContextDrawImage(ctx, [self frame], image); + CGImageRelease(image); +} + +- (BOOL) acceptsFirstResponder { + return YES; +} + +- (void) keyDown: (NSEvent *) event { + char in; + BOOL converted = [ + [event characters] + getBytes: &in + maxLength: 1 + usedLength: NULL + encoding: NSASCIIStringEncoding + options: 0 + range: NSMakeRange(0, 1) + remainingRange: NULL + ]; + if (converted) { + if (!input(in)) { + [NSApp terminate: self]; + } + [self draw]; + [self setWindowTitle]; + } +} +@end + +@interface Delegate : NSObject <NSApplicationDelegate> +@end + +@implementation Delegate +- (BOOL) applicationShouldTerminateAfterLastWindowClosed: + (NSApplication *) sender { + (void)sender; + return YES; +} +@end + +int main(int argc, char *argv[]) { + int error = init(argc, argv); + if (error) return error; + + [NSApplication sharedApplication]; + [NSApp setActivationPolicy: NSApplicationActivationPolicyRegular]; + [NSApp setDelegate: [Delegate new]]; + + NSString *name = [[NSProcessInfo processInfo] processName]; + NSMenu *menu = [NSMenu new]; + [ + menu + addItemWithTitle: @"Close Window" + action: @selector(performClose:) + keyEquivalent: @"w" + ]; + [menu addItem: [NSMenuItem separatorItem]]; + [ + menu + addItemWithTitle: [@"Quit " stringByAppendingString: name] + action: @selector(terminate:) + keyEquivalent: @"q" + ]; + NSMenuItem *menuItem = [NSMenuItem new]; + [menuItem setSubmenu: menu]; + [NSApp setMainMenu: [NSMenu new]]; + [[NSApp mainMenu] addItem: menuItem]; + + NSUInteger style = NSTitledWindowMask + | NSClosableWindowMask + | NSMiniaturizableWindowMask + | NSResizableWindowMask; + NSWindow *window = [ + [NSWindow alloc] + initWithContentRect: NSMakeRect(0, 0, 800, 600) + styleMask: style + backing: NSBackingStoreBuffered + defer: YES + ]; + [window center]; + + BufferView *view = [[BufferView alloc] initWithFrame: [window frame]]; + [window setContentView: view]; + [view setWindowTitle]; + + [window makeKeyAndOrderFront: nil]; + [NSApp activateIgnoringOtherApps: YES]; + [NSApp run]; +} diff --git a/bin/gfx-fb.c b/bin/gfx-fb.c new file mode 100644 index 00000000..75daed22 --- /dev/null +++ b/bin/gfx-fb.c @@ -0,0 +1,87 @@ +/* Copyright (C) 2018 C. McEnroe <june@causal.agency> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <err.h> +#include <fcntl.h> +#include <linux/fb.h> +#include <stdbool.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/ioctl.h> +#include <sys/mman.h> +#include <sysexits.h> +#include <termios.h> +#include <unistd.h> + +#include "gfx.h" + +static struct termios saveTerm; +static void restoreTerm(void) { + tcsetattr(STDERR_FILENO, TCSADRAIN, &saveTerm); +} + +int main(int argc, char *argv[]) { + int error; + + error = init(argc, argv); + if (error) return error; + + const char *path = getenv("FRAMEBUFFER"); + if (!path) path = "/dev/fb0"; + + int fb = open(path, O_RDWR); + if (fb < 0) err(EX_OSFILE, "%s", path); + + struct fb_var_screeninfo info; + error = ioctl(fb, FBIOGET_VSCREENINFO, &info); + if (error) err(EX_IOERR, "%s", path); + + size_t size = 4 * info.xres * info.yres; + uint32_t *buf = mmap(NULL, size, PROT_READ | PROT_WRITE, MAP_SHARED, fb, 0); + if (buf == MAP_FAILED) err(EX_IOERR, "%s", path); + + error = tcgetattr(STDERR_FILENO, &saveTerm); + if (error) err(EX_IOERR, "tcgetattr"); + atexit(restoreTerm); + + struct termios term = saveTerm; + term.c_lflag &= ~(ICANON | ECHO); + error = tcsetattr(STDERR_FILENO, TCSADRAIN, &term); + if (error) err(EX_IOERR, "tcsetattr"); + + uint32_t saveBg = buf[0]; + + uint32_t back[info.xres * info.yres]; + for (;;) { + draw(back, info.xres, info.yres); + memcpy(buf, back, size); + + char in; + ssize_t len = read(STDERR_FILENO, &in, 1); + if (len < 0) err(EX_IOERR, "read"); + if (!len) return EX_DATAERR; + + if (!input(in)) { + for (uint32_t i = 0; i < info.xres * info.yres; ++i) { + buf[i] = saveBg; + } + fprintf(stderr, "%s\n", status()); + return EX_OK; + } + } +} diff --git a/bin/gfx-x11.c b/bin/gfx-x11.c new file mode 100644 index 00000000..f885ac31 --- /dev/null +++ b/bin/gfx-x11.c @@ -0,0 +1,135 @@ +/* Copyright (C) 2018 C. McEnroe <june@causal.agency> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <X11/Xlib.h> +#include <err.h> +#include <sysexits.h> +#include <stdint.h> +#include <stdlib.h> +#include <stdbool.h> + +#include "gfx.h" + +static size_t width = 800; +static size_t height = 600; + +static Display *display; +static Window window; +static Atom WM_DELETE_WINDOW; +static GC windowGc; +static XImage *image; + +static size_t bufSize; +static uint32_t *buf; + +static size_t pixmapWidth; +static size_t pixmapHeight; +static Pixmap pixmap; + +static void createWindow(void) { + display = XOpenDisplay(NULL); + if (!display) errx(EX_UNAVAILABLE, "XOpenDisplay: %s", XDisplayName(NULL)); + + Window root = DefaultRootWindow(display); + window = XCreateSimpleWindow(display, root, 0, 0, width, height, 0, 0, 0); + + WM_DELETE_WINDOW = XInternAtom(display, "WM_DELETE_WINDOW", false); + XSetWMProtocols(display, window, &WM_DELETE_WINDOW, 1); + + windowGc = XCreateGC(display, window, 0, NULL); + + image = XCreateImage(display, NULL, 24, ZPixmap, 0, NULL, width, height, 32, 0); +} + +static void resizePixmap(void) { + size_t newSize = 4 * width * height; + if (newSize > bufSize) { + bufSize = newSize; + free(buf); + buf = malloc(bufSize); + if (!buf) err(EX_OSERR, "malloc(%zu)", bufSize); + } + + image->data = (char *)buf; + image->width = width; + image->height = height; + image->bytes_per_line = 4 * width; + + if (width > pixmapWidth || height > pixmapHeight) { + pixmapWidth = width; + pixmapHeight = height; + if (pixmap) XFreePixmap(display, pixmap); + pixmap = XCreatePixmap(display, window, pixmapWidth, pixmapHeight, 24); + } +} + +static void drawWindow(void) { + draw(buf, width, height); + XPutImage(display, pixmap, windowGc, image, 0, 0, 0, 0, width, height); + XCopyArea(display, pixmap, window, windowGc, 0, 0, width, height, 0, 0); +} + +int main(int argc, char *argv[]) { + int error = init(argc, argv); + if (error) return error; + + createWindow(); + resizePixmap(); + drawWindow(); + + XStoreName(display, window, status()); + XMapWindow(display, window); + + XEvent event; + XSelectInput(display, window, ExposureMask | StructureNotifyMask | KeyPressMask); + for (;;) { + XNextEvent(display, &event); + + switch (event.type) { + case KeyPress: { + XKeyEvent key = event.xkey; + KeySym sym = XLookupKeysym(&key, key.state & ShiftMask); + if (sym > 0x80) break; + if (!input(sym)) return EX_OK; + drawWindow(); + XStoreName(display, window, status()); + } break; + + case ConfigureNotify: { + XConfigureEvent configure = event.xconfigure; + width = configure.width; + height = configure.height; + resizePixmap(); + drawWindow(); + } break; + + case Expose: { + XExposeEvent expose = event.xexpose; + XCopyArea( + display, pixmap, window, windowGc, + expose.x, expose.y, + expose.width, expose.height, + expose.x, expose.y + ); + } break; + + case ClientMessage: { + XClientMessageEvent client = event.xclient; + if ((Atom)client.data.l[0] == WM_DELETE_WINDOW) return EX_OK; + } break; + } + } +} diff --git a/bin/gfx.h b/bin/gfx.h new file mode 100644 index 00000000..7fdf9f48 --- /dev/null +++ b/bin/gfx.h @@ -0,0 +1,24 @@ +/* Copyright (C) 2018 C. McEnroe <june@causal.agency> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <stdbool.h> +#include <stdint.h> +#include <stdlib.h> + +extern int init(int argc, char *argv[]); +extern const char *status(void); +extern void draw(uint32_t *buf, size_t width, size_t height); +extern bool input(char in); diff --git a/bin/gfxx.c b/bin/gfxx.c new file mode 100644 index 00000000..7373fd4b --- /dev/null +++ b/bin/gfxx.c @@ -0,0 +1,470 @@ +/* Copyright (C) 2018 C. McEnroe <june@causal.agency> + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU Affero General Public License as published by + * the Free Software Foundation, either version 3 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU Affero General Public License for more details. + * + * You should have received a copy of the GNU Affero General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <err.h> +#include <fcntl.h> +#include <math.h> +#include <stdbool.h> +#include <stdint.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <sys/mman.h> +#include <sys/stat.h> +#include <sysexits.h> +#include <unistd.h> + +#include "gfx.h" +#include "png.h" + +#define MAX(a, b) ((a) > (b) ? (a) : (b)) +#define MASK(b) ((1 << (b)) - 1) + +static uint32_t rgb(uint8_t r, uint8_t g, uint8_t b) { + return (uint32_t)r << 16 | (uint32_t)g << 8 | (uint32_t)b; +} +static uint32_t gray(uint8_t n) { + return rgb(n, n, n); +} + +static enum { + ColorIndexed, + ColorGrayscale, + ColorRGB, + ColorCount, +} space = ColorRGB; +static const char *ColorStr[ColorCount] = { "indexed", "grayscale", "rgb" }; +static uint32_t palette[256]; + +static enum { + EndianLittle, + EndianBig, +} byteOrder, bitOrder; + +enum { Pad, R, G, B }; +static uint8_t bits[4] = { 8, 8, 8, 8 }; + +static uint8_t bitsColor(void) { + return bits[R] + bits[G] + bits[B]; +} +static uint8_t bitsTotal(void) { + return bits[Pad] + bitsColor(); +} + +static size_t offset; +static size_t width = 16; +static bool flip; +static bool mirror; +static size_t scale = 1; + +static const char *prefix = "gfxx"; + +static size_t size; +static uint8_t *data; + +int init(int argc, char *argv[]) { + const char *pal = NULL; + const char *path = NULL; + + int opt; + while (0 < (opt = getopt(argc, argv, "c:p:b:e:E:n:fmw:z:o:"))) { + switch (opt) { + break; case 'c': + switch (optarg[0]) { + break; case 'i': space = ColorIndexed; + break; case 'g': space = ColorGrayscale; + break; case 'r': space = ColorRGB; + break; default: return EX_USAGE; + } + break; case 'p': pal = optarg; + break; case 'e': + switch (optarg[0]) { + break; case 'l': byteOrder = EndianLittle; + break; case 'b': byteOrder = EndianBig; + break; default: return EX_USAGE; + } + break; case 'E': + switch (optarg[0]) { + break; case 'l': bitOrder = EndianLittle; + break; case 'b': bitOrder = EndianBig; + break; default: return EX_USAGE; + } + break; case 'b': { + if (strlen(optarg) < 4) return EX_USAGE; + for (int i = 0; i < 4; ++i) { + bits[i] = optarg[i] - '0'; + } + } + break; case 'n': offset = strtoul(optarg, NULL, 0); + break; case 'f': flip ^= true; + break; case 'm': mirror ^= true; + break; case 'w': width = strtoul(optarg, NULL, 0); + break; case 'z': scale = strtoul(optarg, NULL, 0); + break; case 'o': prefix = optarg; + break; default: return EX_USAGE; + } + } + if (argc > optind) path = argv[optind]; + if (!width || !scale) return EX_USAGE; + + if (pal) { + FILE *file = fopen(pal, "r"); + if (!file) err(EX_NOINPUT, "%s", pal); + fread(palette, 4, 256, file); + if (ferror(file)) err(EX_IOERR, "%s", pal); + fclose(file); + } else { + for (int i = 0; i < 256; ++i) { + double h = i / 256.0 * 6.0; + double x = 1.0 - fabs(fmod(h, 2.0) - 1.0); + double r = 255.0, g = 255.0, b = 255.0; + if (h <= 1.0) { g *= x; b = 0.0; } + else if (h <= 2.0) { r *= x; b = 0.0; } + else if (h <= 3.0) { r = 0.0; b *= x; } + else if (h <= 4.0) { r = 0.0; g *= x; } + else if (h <= 5.0) { r *= x; g = 0.0; } + else if (h <= 6.0) { g = 0.0; b *= x; } + palette[i] = (uint32_t)r << 16 | (uint32_t)g << 8 | (uint32_t)b; + } + } + + if (path) { + int fd = open(path, O_RDONLY); + if (fd < 0) err(EX_NOINPUT, "%s", path); + + struct stat stat; + int error = fstat(fd, &stat); + if (error) err(EX_IOERR, "%s", path); + size = stat.st_size; + + data = mmap(NULL, size, PROT_READ, MAP_SHARED, fd, 0); + if (data == MAP_FAILED) err(EX_IOERR, "%s", path); + + } else { + size = 1024 * 1024; + data = malloc(size); + if (!data) err(EX_OSERR, "malloc(%zu)", size); + + size = fread(data, 1, size, stdin); + if (ferror(stdin)) err(EX_IOERR, "(stdin)"); + } + + return EX_OK; +} + +static char options[128]; +static void formatOptions(void) { + snprintf( + options, sizeof(options), + "gfxx -c %s -e%c -E%c -b %hhu%hhu%hhu%hhu -n 0x%zX %s%s-w %zu -z %zu", + ColorStr[space], + "lb"[byteOrder], + "lb"[bitOrder], + bits[Pad], bits[R], bits[G], bits[B], + offset, + flip ? "-f " : "", + mirror ? "-m " : "", + width, + scale + ); +} + +const char *status(void) { + formatOptions(); + return options; +} + +struct Iter { + uint32_t *buf; + size_t bufWidth; + size_t bufHeight; + size_t left; + size_t x; + size_t y; +}; + +static struct Iter iter(uint32_t *buf, size_t bufWidth, size_t bufHeight) { + struct Iter it = { .buf = buf, .bufWidth = bufWidth, .bufHeight = bufHeight }; + if (mirror) it.x = width - 1; + if (flip) it.y = bufHeight / scale - 1; + return it; +} + +static bool nextX(struct Iter *it) { + if (mirror) { + if (it->x == it->left) return false; + it->x--; + } else { + it->x++; + if (it->x == it->left + width) return false; + } + return true; +} + +static bool nextY(struct Iter *it) { + if (flip) { + if (it->y == 0) { + it->left += width; + it->y = it->bufHeight / scale; + } + it->y--; + } else { + it->y++; + if (it->y == it->bufHeight / scale) { + it->left += width; + it->y = 0; + } + } + it->x = it->left; + if (mirror) it->x += width - 1; + return (it->left < it->bufWidth / scale); +} + +static bool next(struct Iter *it) { + return nextX(it) || nextY(it); +} + +static void put(const struct Iter *it, uint32_t pixel) { + size_t scaledX = it->x * scale; + size_t scaledY = it->y * scale; + for (size_t fillY = scaledY; fillY < scaledY + scale; ++fillY) { + if (fillY >= it->bufHeight) break; + for (size_t fillX = scaledX; fillX < scaledX + scale; ++fillX) { + if (fillX >= it->bufWidth) break; + it->buf[fillY * it->bufWidth + fillX] = pixel; + } + } +} + +static uint8_t interp(uint8_t b, uint32_t n) { + if (b == 8) return n; + if (b == 0) return 0; + return n * MASK(8) / MASK(b); +} + +static uint32_t interpolate(uint32_t orig) { + uint32_t r, g, b; + if (bitOrder == EndianLittle) { + b = orig & MASK(bits[B]); + g = (orig >>= bits[B]) & MASK(bits[G]); + r = (orig >>= bits[G]) & MASK(bits[R]); + } else { + r = orig & MASK(bits[R]); + g = (orig >>= bits[R]) & MASK(bits[G]); + b = (orig >>= bits[G]) & MASK(bits[B]); + } + return rgb(interp(bits[R], r), interp(bits[G], g), interp(bits[B], b)); +} + +static void drawBits(struct Iter *it) { + for (size_t i = offset; i < size; ++i) { + for (uint8_t b = 0; b < 8; b += bitsTotal()) { + uint8_t n; + if (byteOrder == EndianBig) { + n = data[i] >> (8 - bitsTotal() - b) & MASK(bitsTotal()); + } else { + n = data[i] >> b & MASK(bitsTotal()); + } + + if (space == ColorIndexed) { + put(it, palette[n]); + } else if (space == ColorGrayscale) { + put(it, gray(interp(bitsColor(), n & MASK(bitsColor())))); + } else if (space == ColorRGB) { + put(it, interpolate(n)); + } + + if (!next(it)) return; + } + } +} + +static void drawBytes(struct Iter *it) { + uint8_t bytes = (bitsTotal() + 7) / 8; + for (size_t i = offset; i + bytes <= size; i += bytes) { + uint32_t n = 0; + for (size_t b = 0; b < bytes; ++b) { + n <<= 8; + n |= (byteOrder == EndianBig) ? data[i + b] : data[i + bytes - b - 1]; + } + + if (space == ColorIndexed) { + put(it, palette[n & 0xFF]); + } else if (space == ColorGrayscale) { + put(it, gray(interp(bitsColor(), n & MASK(bitsColor())))); + } else if (space == ColorRGB) { + put(it, interpolate(n)); + } + + if (!next(it)) return; + } +} + +static struct { + unsigned counter; + char path[FILENAME_MAX]; + FILE *file; +} out; +static void outOpen(const char *ext) { + snprintf(out.path, sizeof(out.path), "%s%04u.%s", prefix, ++out.counter, ext); + out.file = fopen(out.path, "wx"); + if (out.file) { + printf("%s\n", out.path); + } else { + warn("%s", out.path); + } +} + +static void pngDump(uint32_t *src, size_t srcWidth, size_t srcHeight) { + int error; + + size_t stride = 1 + 3 * srcWidth; + uint8_t data[stride * srcHeight]; + for (size_t y = 0; y < srcHeight; ++y) { + data[y * stride] = 0; + for (size_t x = 0; x < srcWidth; ++x) { + uint8_t *p = &data[y * stride + 1 + 3 * x]; + p[0] = src[y * srcWidth + x] >> 16; + p[1] = src[y * srcWidth + x] >> 8; + p[2] = src[y * srcWidth + x]; + } + } + + outOpen("png"); + if (!out.file) return; + + const char Software[] = "Software"; + formatOptions(); + uint8_t sbit[3] = { MAX(bits[R], 1), MAX(bits[G], 1), MAX(bits[B], 1) }; + + pngHead(out.file, srcWidth, srcHeight, 8, PNGTruecolor); + + pngChunk(out.file, "tEXt", sizeof(Software) + strlen(options)); + pngWrite(out.file, (uint8_t *)Software, sizeof(Software)); + pngWrite(out.file, (uint8_t *)options, strlen(options)); + pngInt32(out.file, ~pngCRC); + + pngChunk(out.file, "sBIT", sizeof(sbit)); + pngWrite(out.file, sbit, sizeof(sbit)); + pngInt32(out.file, ~pngCRC); + + pngData(out.file, data, sizeof(data)); + pngTail(out.file); + + error = fclose(out.file); + if (error) err(EX_IOERR, "%s", out.path); +} + +static enum { + DumpNone, + DumpOne, + DumpAll, +} dump; + +void draw(uint32_t *buf, size_t bufWidth, size_t bufHeight) { + memset(buf, 0, 4 * bufWidth * bufHeight); + struct Iter it = iter(buf, bufWidth, bufHeight); + if (bitsTotal() >= 8) { + drawBytes(&it); + } else { + drawBits(&it); + } + if (dump) pngDump(buf, bufWidth, bufHeight); + if (dump == DumpOne) dump = DumpNone; +} + +static void palSample(void) { + size_t temp = scale; + scale = 1; + draw(palette, 256, 1); + scale = temp; +} + +static void palDump(void) { + outOpen("dat"); + if (!out.file) return; + + fwrite(palette, 4, 256, out.file); + if (ferror(out.file)) err(EX_IOERR, "%s", out.path); + + int error = fclose(out.file); + if (error) err(EX_IOERR, "%s", out.path); +} + +static const uint8_t Presets[][4] = { + { 0, 0, 1, 0 }, + { 0, 1, 1, 0 }, + { 1, 1, 1, 1 }, + { 2, 2, 2, 2 }, + { 0, 3, 3, 2 }, + { 4, 4, 4, 4 }, + { 1, 5, 5, 5 }, + { 0, 5, 6, 5 }, + { 0, 8, 8, 8 }, + { 8, 8, 8, 8 }, +}; +static const size_t PresetsLen = sizeof(Presets) / sizeof(Presets[0]); + +static uint8_t preset = PresetsLen - 1; +static void setPreset(void) { + bits[Pad] = Presets[preset][Pad]; + bits[R] = Presets[preset][R]; + bits[G] = Presets[preset][G]; + bits[B] = Presets[preset][B]; +} + +static void setBit(char in) { + static uint8_t bit = 0; + bits[bit++] = in - '0'; + bit &= 3; +} + +bool input(char in) { + size_t pixel = (bitsTotal() + 7) / 8; + size_t row = width * bitsTotal() / 8; + switch (in) { + break; case 'q': return false; + break; case 'x': dump = DumpOne; + break; case 'X': dump ^= DumpAll; + break; case 'o': formatOptions(); printf("%s\n", options); + break; case '[': if (!space--) space = ColorCount - 1; + break; case ']': if (++space == ColorCount) space = 0; + break; case 'p': palSample(); + break; case 'P': palDump(); + break; case '{': if (!preset--) preset = PresetsLen - 1; setPreset(); + break; case '}': if (++preset == PresetsLen) preset = 0; setPreset(); + break; case 'e': byteOrder ^= EndianBig; + break; case 'E': bitOrder ^= EndianBig; + break; case 'h': if (offset) offset--; + break; case 'j': offset += pixel; + break; case 'k': if (offset >= pixel) offset -= pixel; + break; case 'l': offset++; + break; case 'H': if (offset >= row) offset -= row; + break; case 'J': offset += width * row; + break; case 'K': if (offset >= width * row) offset -= width * row; + break; case 'L': offset += row; + break; case '.': width++; + break; case ',': if (width > 1) width--; + break; case '>': width *= 2; + break; case '<': if (width > 1) width /= 2; + break; case 'f': flip ^= true; + break; case 'm': mirror ^= true; + break; case '+': scale++; + break; case '-': if (scale > 1) scale--; + break; default: if (in >= '0' && in <= '9') setBit(in); + } + return true; +} diff --git a/bin/man1/brot.1 b/bin/man1/brot.1 new file mode 100644 index 00000000..7c1a4087 --- /dev/null +++ b/bin/man1/brot.1 @@ -0,0 +1,63 @@ +.Dd September 8, 2018 +.Dt BROT 1 +.Os +. +.Sh NAME +.Nm brot +.Nd Mandelbrot renderer +. +.Sh SYNOPSIS +.Nm +.Op Fl i Ar depth +.Op Fl s Ar samples +.Op Fl t Ar a+bi +.Op Fl f Ar a+bi +. +.Sh DESCRIPTION +.Nm +renders the Mandelbrot set +in grayscale. +. +.Pp +The arguments are as follows: +.Bl -tag -width Ds +.It Fl f Ar a+bi +Set complex transform factor. +. +.It Fl i Ar depth +Set number of iterations. +. +.It Fl s Ar samples +Set number of samples per pixel. +. +.It Fl t Ar a+bi +Set complex translation term. +.El +. +.Pp +The interactive keys are as follows: +.Bl -tag -width Ds +.It Ic q +Quit. +. +.It Ic ,. +Adjust depth. +. +.It Ic [] +Adjust samples. +. +.It Ic hl +Adjust real component of translation. +. +.It Ic kj +Adjust imaginary componenent of translation. +. +.It Ic ui +Adjust rotation. +. +.It Ic -+ +Adjust scale. +. +.It Ic 0 +Reset translation and transform. +.El diff --git a/bin/man1/gfxx.1 b/bin/man1/gfxx.1 new file mode 100644 index 00000000..d3d1edbd --- /dev/null +++ b/bin/man1/gfxx.1 @@ -0,0 +1,138 @@ +.Dd September 8, 2018 +.Dt GFXX 1 +.Os +. +.Sh NAME +.Nm gfxx +.Nd graphics data explorer +. +.Sh SYNOPSIS +.Nm +.Op Fl fm +.Op Fl c Ar space +.Op Fl p Ar file +.Op Fl e Ar lb +.Op Fl E Ar lb +.Op Fl b Ar bits +.Op Fl n Ar offset +.Op Fl w Ar width +.Op Fl z Ar scale +.Op Fl o Ar prefix +. +.Sh DESCRIPTION +.Nm +is an interactive graphics data explorer +capable of dumping PNGs. +. +.Pp +The arguments are as follows: +.Bl -tag -width Ds +.It Fl E Ar lb +Set bit order to little or big endian. +. +.It Fl b Ar bits +Set number of bits of padding, +red, +green +and blue +components. +Four digits are required. +. +.It Fl c Ar space +Set color space to one of +.Cm indexed , +.Cm grayscale , +.Cm rgb . +. +.It Fl e Ar lb +Set byte order to little or big endian. +. +.It Fl f +Flip display vertically. +. +.It Fl m +Mirror display horizontally. +. +.It Fl n Ar offset +Set byte offset into data. +. +.It Fl o Ar prefix +Set PNG output filename prefix. +. +.It Fl p Ar file +Load indexed color palette from +.Ar file . +. +.It Fl w Ar width +Set display column width. +. +.It Fl z Ar scale +Set display scale. +.El +. +.Pp +The interactive keys are as follows: +.Bl -tag -width Ds +.It Ic q +Quit. +. +.It Ic x +Export one frame as PNG. +. +.It Ic X +Export each frame as PNG. +. +.It Ic o +Print interactive options. +. +.It Ic [] +Select color space. +. +.It Ic p +Sample indexed palette from top-left corner. +. +.It Ic P +Export indexed palette as RGB data. +. +.It Ic {} +Select bits preset. +. +.It Ic e +Toggle byte order. +. +.It Ic E +Toggle bit order. +. +.It Ic hl +Adjust offset by byte. +. +.It Ic jk +Adjust offset by pixel. +. +.It Ic HL +Adjust offset by pixel row. +. +.It Ic JK +Adjust offset by pixel row square. +. +.It Ic ,. +Adjust display column width. +. +.It Ic <> +Adjust display column width by half or double. +. +.It Ic f +Toggle vertically flipped display. +. +.It Ic m +Toggle horizontally mirrored display. +. +.It Ic -+ +Adjust display scale. +. +.It Ic 0-9 +Set bits. +.El +. +.Sh SEE ALSO +.Xr pngo 1 |