diff options
Diffstat (limited to 'gfx')
| -rw-r--r-- | gfx/.gitignore | 4 | ||||
| -rw-r--r-- | gfx/LICENSE | 661 | ||||
| -rw-r--r-- | gfx/Makefile | 45 | ||||
| -rw-r--r-- | gfx/README | 18 | ||||
| -rw-r--r-- | gfx/brot.c | 151 | ||||
| -rw-r--r-- | gfx/cocoa.m | 162 | ||||
| -rw-r--r-- | gfx/fb.c | 87 | ||||
| -rw-r--r-- | gfx/gfx.h | 24 | ||||
| -rw-r--r-- | gfx/gfxx.c | 470 | ||||
| -rw-r--r-- | gfx/man/brot.1 | 63 | ||||
| -rw-r--r-- | gfx/man/gfx.7 | 30 | ||||
| -rw-r--r-- | gfx/man/gfxx.1 | 138 | ||||
| -rw-r--r-- | gfx/png.h | 108 | ||||
| -rw-r--r-- | gfx/x11.c | 135 |
14 files changed, 0 insertions, 2096 deletions
diff --git a/gfx/.gitignore b/gfx/.gitignore deleted file mode 100644 index cdff2c2e..00000000 --- a/gfx/.gitignore +++ /dev/null @@ -1,4 +0,0 @@ -*.o -tags -brot -gfxx diff --git a/gfx/LICENSE b/gfx/LICENSE deleted file mode 100644 index dba13ed2..00000000 --- a/gfx/LICENSE +++ /dev/null @@ -1,661 +0,0 @@ - GNU AFFERO GENERAL PUBLIC LICENSE - Version 3, 19 November 2007 - - Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/> - Everyone is permitted to copy and distribute verbatim copies - of this license document, but changing it is not allowed. - - Preamble - - The GNU Affero General Public License is a free, copyleft license for -software and other kinds of works, specifically designed to ensure -cooperation with the community in the case of network server software. - - The licenses for most software and other practical works are designed -to take away your freedom to share and change the works. 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It is safest -to attach them to the start of each source file to most effectively -state the exclusion of warranty; and each file should have at least -the "copyright" line and a pointer to where the full notice is found. - - <one line to give the program's name and a brief idea of what it does.> - Copyright (C) <year> <name of author> - - 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/>. - -Also add information on how to contact you by electronic and paper mail. - - If your software can interact with users remotely through a computer -network, you should also make sure that it provides a way for users to -get its source. For example, if your program is a web application, its -interface could display a "Source" link that leads users to an archive -of the code. There are many ways you could offer source, and different -solutions will be better for different programs; see section 13 for the -specific requirements. - - You should also get your employer (if you work as a programmer) or school, -if any, to sign a "copyright disclaimer" for the program, if necessary. -For more information on this, and how to apply and follow the GNU AGPL, see -<http://www.gnu.org/licenses/>. diff --git a/gfx/Makefile b/gfx/Makefile deleted file mode 100644 index 20ff5ecd..00000000 --- a/gfx/Makefile +++ /dev/null @@ -1,45 +0,0 @@ -GFX ?= cocoa -PREFIX = ~/.local - -BINS = brot gfxx -MAN1 = $(BINS:%=man/%.1) - -CFLAGS += -Wall -Wextra -Wpedantic -LDLIBS = -lm -LDLIBS_cocoa = -framework Cocoa -LDLIBS_x11 = -lX11 - -all: .gitignore tags $(BINS) - -tags: *.h *.c - ctags -w *.h *.c - -brot.o gfxx.o: gfx.h - -cocoa.o fb.o x11.o: gfx.h - -gfxx.o: png.h - -brot: brot.o $(GFX).o - $(CC) $(LDFLAGS) brot.o $(GFX).o $(LDLIBS) $(LDLIBS_$(GFX)) -o $@ - -gfxx: gfxx.o $(GFX).o - $(CC) $(LDFLAGS) gfxx.o $(GFX).o $(LDLIBS) $(LDLIBS_$(GFX)) -o $@ - -clean: - rm -f tags *.o $(BINS) - -README: man/gfx.7 - mandoc man/gfx.7 | col -b -x > README - -.gitignore: Makefile - echo '*.o' tags $(BINS) | tr ' ' '\n' > .gitignore - -link: - mkdir -p $(PREFIX)/bin $(PREFIX)/share/man/man1 - ln -s -f $(BINS:%=$(PWD)/%) $(PREFIX)/bin - ln -s -f $(MAN1:%=$(PWD)/%) $(PREFIX)/share/man/man1 - -unlink: - rm -f $(BINS:%=$(PREFIX)/bin/%) - rm -f $(MAN1:%=$(PREFIX)/share/man/man1/%) diff --git a/gfx/README b/gfx/README deleted file mode 100644 index cdb264d9..00000000 --- a/gfx/README +++ /dev/null @@ -1,18 +0,0 @@ -GFX(7) Miscellaneous Information Manual GFX(7) - -NAME - gfx – graphical utilities - -DESCRIPTION - Graphial tools targeting Cocoa, X11 and Linux framebuffer. - - brot(1) Mandelbrot renderer - gfxx(1) graphics data explorer - - To build, run one of: - - make GFX=cocoa - make GFX=x11 - make GFX=fb - -Causal Agency September 11, 2018 Causal Agency diff --git a/gfx/brot.c b/gfx/brot.c deleted file mode 100644 index e7ac442d..00000000 --- a/gfx/brot.c +++ /dev/null @@ -1,151 +0,0 @@ -/* 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/gfx/cocoa.m b/gfx/cocoa.m deleted file mode 100644 index 7e7b7643..00000000 --- a/gfx/cocoa.m +++ /dev/null @@ -1,162 +0,0 @@ -/* 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/gfx/fb.c b/gfx/fb.c deleted file mode 100644 index 75daed22..00000000 --- a/gfx/fb.c +++ /dev/null @@ -1,87 +0,0 @@ -/* 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/gfx/gfx.h b/gfx/gfx.h deleted file mode 100644 index 7fdf9f48..00000000 --- a/gfx/gfx.h +++ /dev/null @@ -1,24 +0,0 @@ -/* 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/gfx/gfxx.c b/gfx/gfxx.c deleted file mode 100644 index 7373fd4b..00000000 --- a/gfx/gfxx.c +++ /dev/null @@ -1,470 +0,0 @@ -/* 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/gfx/man/brot.1 b/gfx/man/brot.1 deleted file mode 100644 index 7c1a4087..00000000 --- a/gfx/man/brot.1 +++ /dev/null @@ -1,63 +0,0 @@ -.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/gfx/man/gfx.7 b/gfx/man/gfx.7 deleted file mode 100644 index 8c002b89..00000000 --- a/gfx/man/gfx.7 +++ /dev/null @@ -1,30 +0,0 @@ -.Dd September 11, 2018 -.Dt GFX 7 -.Os "Causal Agency" -. -.Sh NAME -.Nm gfx -.Nd graphical utilities -. -.Sh DESCRIPTION -Graphial tools targeting -Cocoa, -X11 -and Linux framebuffer. -. -.Pp -.Bl -tag -width "gfxx(1)" -compact -.It Xr brot 1 -Mandelbrot renderer -. -.It Xr gfxx 1 -graphics data explorer -.El -. -.Pp -To build, -run one of: -.Pp -.Dl make GFX=cocoa -.Dl make GFX=x11 -.Dl make GFX=fb diff --git a/gfx/man/gfxx.1 b/gfx/man/gfxx.1 deleted file mode 100644 index d3d1edbd..00000000 --- a/gfx/man/gfxx.1 +++ /dev/null @@ -1,138 +0,0 @@ -.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 diff --git a/gfx/png.h b/gfx/png.h deleted file mode 100644 index 15b6d13d..00000000 --- a/gfx/png.h +++ /dev/null @@ -1,108 +0,0 @@ -/* 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 <stdint.h> -#include <stdio.h> -#include <stdlib.h> -#include <sysexits.h> - -static inline uint32_t pngCRCTable(uint8_t n) { - static uint32_t table[256]; - if (table[1]) return table[n]; - for (int i = 0; i < 256; ++i) { - table[i] = i; - for (int j = 0; j < 8; ++j) { - table[i] = (table[i] >> 1) ^ (table[i] & 1 ? 0xEDB88320 : 0); - } - } - return table[n]; -} - -static uint32_t pngCRC; - -static inline void pngWrite(FILE *file, const uint8_t *ptr, uint32_t len) { - if (!fwrite(ptr, len, 1, file)) err(EX_IOERR, "pngWrite"); - for (uint32_t i = 0; i < len; ++i) { - pngCRC = pngCRCTable(pngCRC ^ ptr[i]) ^ (pngCRC >> 8); - } -} -static inline void pngInt32(FILE *file, uint32_t n) { - pngWrite(file, (uint8_t []) { n >> 24, n >> 16, n >> 8, n }, 4); -} -static inline void pngChunk(FILE *file, char type[static 4], uint32_t len) { - pngInt32(file, len); - pngCRC = ~0; - pngWrite(file, (uint8_t *)type, 4); -} - -enum { - PNGGrayscale, - PNGTruecolor = 2, - PNGIndexed, - PNGAlpha, -}; - -static inline void pngHead( - FILE *file, uint32_t width, uint32_t height, uint8_t depth, uint8_t color -) { - pngWrite(file, (uint8_t *)"\x89PNG\r\n\x1A\n", 8); - pngChunk(file, "IHDR", 13); - pngInt32(file, width); - pngInt32(file, height); - pngWrite(file, &depth, 1); - pngWrite(file, &color, 1); - pngWrite(file, (uint8_t []) { 0, 0, 0 }, 3); - pngInt32(file, ~pngCRC); -} - -static inline void pngPalette(FILE *file, const uint8_t *pal, uint32_t len) { - pngChunk(file, "PLTE", len); - pngWrite(file, pal, len); - pngInt32(file, ~pngCRC); -} - -enum { - PNGNone, - PNGSub, - PNGUp, - PNGAverage, - PNGPaeth, -}; - -static inline void pngData(FILE *file, const uint8_t *data, uint32_t len) { - uint32_t adler1 = 1, adler2 = 0; - for (uint32_t i = 0; i < len; ++i) { - adler1 = (adler1 + data[i]) % 65521; - adler2 = (adler1 + adler2) % 65521; - } - uint32_t zlen = 2 + 5 * ((len + 0xFFFE) / 0xFFFF) + len + 4; - pngChunk(file, "IDAT", zlen); - pngWrite(file, (uint8_t []) { 0x08, 0x1D }, 2); - for (; len > 0xFFFF; data += 0xFFFF, len -= 0xFFFF) { - pngWrite(file, (uint8_t []) { 0x00, 0xFF, 0xFF, 0x00, 0x00 }, 5); - pngWrite(file, data, 0xFFFF); - } - pngWrite(file, (uint8_t []) { 0x01, len, len >> 8, ~len, ~len >> 8 }, 5); - pngWrite(file, data, len); - pngInt32(file, adler2 << 16 | adler1); - pngInt32(file, ~pngCRC); -} - -static inline void pngTail(FILE *file) { - pngChunk(file, "IEND", 0); - pngInt32(file, ~pngCRC); -} diff --git a/gfx/x11.c b/gfx/x11.c deleted file mode 100644 index f885ac31..00000000 --- a/gfx/x11.c +++ /dev/null @@ -1,135 +0,0 @@ -/* 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; - } - } -} |