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Diffstat (limited to '')
| -rw-r--r-- | fb2png/adb_screenshoot.c | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/fb2png/adb_screenshoot.c b/fb2png/adb_screenshoot.c new file mode 100644 index 000000000..afd54cada --- /dev/null +++ b/fb2png/adb_screenshoot.c @@ -0,0 +1,191 @@ +/* + * -- http://android-fb2png.googlecode.com/svn/trunk/adb_screenshoot.c -- + * + * Copyright 2011, Kyan He <kyan.ql.he@gmail.com> + * + * + * This program is free software: you can redistribute it and/or modify + * it under the terms of the GNU 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 General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <errno.h> +#include <netdb.h> +#include <netinet/in.h> + +#include "fb.h" +#include "log.h" + +#define DEFAULT_SAVE_PATH "fbdump.png" + +/* defined in $T/system/core/adb/framebuffer_service.c */ +#define DDMS_RAWIMAGE_VERSION 1 +struct fbinfo { + unsigned int version; + unsigned int bpp; + unsigned int size; + unsigned int width; + unsigned int height; + unsigned int red_offset; + unsigned int red_length; + unsigned int blue_offset; + unsigned int blue_length; + unsigned int green_offset; + unsigned int green_length; + unsigned int alpha_offset; + unsigned int alpha_length; +} __attribute__((packed)); + +static int remote_socket(const char *host, int port) +{ + struct sockaddr_in sa; + struct hostent *hp; + int s; + + if(!(hp = gethostbyname(host))){ return -1; } + + memset(&sa, 0, sizeof(sa)); + sa.sin_port = htons(port); + sa.sin_family = hp->h_addrtype; + memcpy((void*) &sa.sin_addr, (void*) hp->h_addr, hp->h_length); + + if((s = socket(hp->h_addrtype, SOCK_STREAM, 0)) < 0) { + return -1; + } + + if(connect(s, (struct sockaddr*) &sa, sizeof(sa)) != 0){ + close(s); + return -1; + } + + return s; +} + +char *target = "usb"; +static int adb_fd; + +/** + * Write command through adb protocol. + * Return + * Bytes have been wrote. + */ +static int adb_write(const char *cmd) +{ + char buf[1024]; + int sz; + + /* Construct command. */ + sz = sprintf(buf, "%04x%s", strlen(cmd), cmd); + + write(adb_fd, buf, sz); + +#if 0 + D("<< %s", buf); +#endif + return sz; +} + +/** + * Read data through adb protocol. + * Return + * Bytes have been read. + */ +static int adb_read(char *buf, int sz) +{ + sz = read(adb_fd, buf, sz); + if (sz < 0) { + E("Fail to read from adb socket, %s", strerror(errno)); + } + buf[sz] = '\0'; +#if 0 + D(">> %d", sz); +#endif + return sz; +} + +static int get_fb_from_adb(struct fb *fb) +{ + char buf[1024]; + const struct fbinfo* fbinfo; + + /* Init socket */ + adb_fd = remote_socket("localhost", 5037); + if (adb_fd < 0) { + E("Fail to create socket, %s", strerror(errno)); + } + + adb_write("host:transport-"); + adb_read(buf, 1024); + + adb_write("framebuffer:"); + adb_read(buf, 1024); + + /* Parse FB header. */ + adb_read(buf, sizeof(struct fbinfo)); + fbinfo = (struct fbinfo*) buf; + + if (fbinfo->version != DDMS_RAWIMAGE_VERSION) { + E("unspport adb version"); + } + + /* Assemble struct fb */ + memcpy(fb, &fbinfo->bpp, sizeof(struct fbinfo) - 4); + fb_dump(fb); + + fb->data = malloc(fb->size); + if (!fb->data) return -1; + + /* Read out the whole framebuffer */ + int bytes_read = 0; + while (bytes_read < fb->size) { + bytes_read += adb_read(fb->data + bytes_read, fb->size - bytes_read); + } + + return 0; +} + +int fb2png(const char* path) +{ + struct fb fb; + + if (get_fb_from_adb(&fb)) { + D("cannot get framebuffer."); + return -1; + } + + return fb_save_png(&fb, path); +} + +int main(int argc, char *argv[]) +{ + char fn[128]; + + if (argc == 2) { + //if (!strcmp(argv[1], "-h") || !strcmp(argv[1], "--help")) { + if (argv[1][0] == '-') { + printf( + "Usage: fb2png [path/to/output.png]\n" + " The default output path is ./fbdump.png\n" + ); + exit(0); + } else { + sprintf(fn, "%s", argv[1]); + } + } else { + sprintf(fn, "%s", DEFAULT_SAVE_PATH); + } + + return fb2png(fn); +} |