Remove "screenshot"

This is the old screenshot utility, which relies on direct access
to the framebuffer device.  It was replaced a long time ago by
"screencap", which talks to SurfaceFlinger (and includes a fallback
that tries to use the FB dev).

Change-Id: Id75a574bc78033761070b64d528fed06e23a0189

cmds/screenshot/Android.mk

@@ -1,12 +0,0 @@
-LOCAL_PATH:= $(call my-dir)
-include $(CLEAR_VARS)
-
-LOCAL_SRC_FILES := screenshot.c
-
-LOCAL_MODULE := screenshot
-
-LOCAL_SHARED_LIBRARIES := libcutils libz liblog
-LOCAL_STATIC_LIBRARIES := libpng
-LOCAL_C_INCLUDES += external/zlib external/libpng
-
-include $(BUILD_EXECUTABLE)

cmds/screenshot/screenshot.c

@@ -1,171 +0,0 @@
-#include <stdlib.h>
-#include <stdio.h>
-#include <unistd.h>
-#include <string.h>
-#include <fcntl.h>
-#include <errno.h>
-
-#include <linux/fb.h>
-
-#include <zlib.h>
-#include <png.h>
-
-#include "private/android_filesystem_config.h"
-
-#define LOG_TAG "screenshot"
-#include <utils/Log.h>
-
-void take_screenshot(FILE *fb_in, FILE *fb_out) {
-    int fb;
-    char imgbuf[0x10000];
-    struct fb_var_screeninfo vinfo;
-    png_structp png;
-    png_infop info;
-    unsigned int r,c,rowlen;
-    unsigned int bytespp,offset;
-
-    fb = fileno(fb_in);
-    if(fb < 0) {
-        ALOGE("failed to open framebuffer\n");
-        return;
-    }
-    fb_in = fdopen(fb, "r");
-
-    if(ioctl(fb, FBIOGET_VSCREENINFO, &vinfo) < 0) {
-        ALOGE("failed to get framebuffer info\n");
-        return;
-    }
-    fcntl(fb, F_SETFD, FD_CLOEXEC);
-
-    png = png_create_write_struct(PNG_LIBPNG_VER_STRING, NULL, NULL, NULL);
-    if (png == NULL) {
-        ALOGE("failed png_create_write_struct\n");
-        fclose(fb_in);
-        return;
-    }
-
-    png_init_io(png, fb_out);
-    info = png_create_info_struct(png);
-    if (info == NULL) {
-        ALOGE("failed png_create_info_struct\n");
-        png_destroy_write_struct(&png, NULL);
-        fclose(fb_in);
-        return;
-    }
-    if (setjmp(png_jmpbuf(png))) {
-        ALOGE("failed png setjmp\n");
-        png_destroy_write_struct(&png, NULL);
-        fclose(fb_in);
-        return;
-    }
-
-    bytespp = vinfo.bits_per_pixel / 8;
-    png_set_IHDR(png, info,
-        vinfo.xres, vinfo.yres, vinfo.bits_per_pixel / 4, 
-        PNG_COLOR_TYPE_RGB_ALPHA, PNG_INTERLACE_NONE,
-        PNG_COMPRESSION_TYPE_BASE, PNG_FILTER_TYPE_BASE);
-    png_write_info(png, info);
-
-    rowlen=vinfo.xres * bytespp;
-    if (rowlen > sizeof(imgbuf)) {
-        ALOGE("crazy rowlen: %d\n", rowlen);
-        png_destroy_write_struct(&png, NULL);
-        fclose(fb_in);
-        return;
-    }
-
-    offset = vinfo.xoffset * bytespp + vinfo.xres * vinfo.yoffset * bytespp;
-    fseek(fb_in, offset, SEEK_SET);
-
-    for(r=0; r<vinfo.yres; r++) {
-        int len = fread(imgbuf, 1, rowlen, fb_in);
-        if (len <= 0) break;
-        png_write_row(png, (png_bytep)imgbuf);
-    }
-
-    png_write_end(png, info);
-    fclose(fb_in);
-    png_destroy_write_struct(&png, NULL);
-}
-
-void fork_sound(const char* path) {
-    pid_t pid = fork();
-    if (pid == 0) {
-        execl("/system/bin/stagefright", "stagefright", "-o", "-a", path, NULL);
-    }
-}
-
-void usage() {
-    fprintf(stderr,
-            "usage: screenshot [-s soundfile] filename.png\n"
-            "   -s: play a sound effect to signal success\n"
-            "   -i: autoincrement to avoid overwriting filename.png\n"
-    );
-}
-
-int main(int argc, char**argv) {
-    FILE *png = NULL;
-    FILE *fb_in = NULL;
-    char outfile[PATH_MAX] = "";
-
-    char * soundfile = NULL;
-    int do_increment = 0;
-
-    int c;
-    while ((c = getopt(argc, argv, "s:i")) != -1) {
-        switch (c) {
-            case 's': soundfile = optarg; break;
-            case 'i': do_increment = 1; break;
-            case '?':
-            case 'h':
-                usage(); exit(1);
-        }
-    }
-    argc -= optind;
-    argv += optind;
-
-    if (argc < 1) {
-        usage(); exit(1);
-    }
-
-    strlcpy(outfile, argv[0], PATH_MAX);
-    if (do_increment) {
-        struct stat st;
-        char base[PATH_MAX] = "";
-        int i = 0;
-        while (stat(outfile, &st) == 0) {
-            if (!base[0]) {
-                char *p = strrchr(outfile, '.');
-                if (p) *p = '\0';
-                strcpy(base, outfile);
-            }
-            snprintf(outfile, PATH_MAX, "%s-%d.png", base, ++i);
-        }
-    }
-
-    fb_in = fopen("/dev/graphics/fb0", "r");
-    if (!fb_in) {
-        fprintf(stderr, "error: could not read framebuffer\n");
-        exit(1);
-    }
-
-    /* switch to non-root user and group */
-    gid_t groups[] = { AID_LOG, AID_SDCARD_RW };
-    setgroups(sizeof(groups)/sizeof(groups[0]), groups);
-    setuid(AID_SHELL);
-
-    png = fopen(outfile, "w");
-    if (!png) {
-        fprintf(stderr, "error: writing file %s: %s\n",
-                outfile, strerror(errno));
-        exit(1);
-    }
-
-    take_screenshot(fb_in, png);
-
-    if (soundfile) {
-        fork_sound(soundfile);
-    }
-
-    exit(0);
-}