diff options
author | The Android Open Source Project <initial-contribution@android.com> | 2009-03-03 18:29:04 -0800 |
---|---|---|
committer | The Android Open Source Project <initial-contribution@android.com> | 2009-03-03 18:29:04 -0800 |
commit | e54eebbf1a908d65ee8cf80bab62821c05666d70 (patch) | |
tree | 4b825dc642cb6eb9a060e54bf8d69288fbee4904 /init/logo.c | |
parent | a1e1c1b106423de09bc918502e7a51d4ffe5a4ae (diff) | |
download | core-e54eebbf1a908d65ee8cf80bab62821c05666d70.tar.gz core-e54eebbf1a908d65ee8cf80bab62821c05666d70.tar.bz2 core-e54eebbf1a908d65ee8cf80bab62821c05666d70.zip |
auto import from //depot/cupcake/@135843
Diffstat (limited to 'init/logo.c')
-rw-r--r-- | init/logo.c | 163 |
1 files changed, 0 insertions, 163 deletions
diff --git a/init/logo.c b/init/logo.c deleted file mode 100644 index 6a740bfd6..000000000 --- a/init/logo.c +++ /dev/null @@ -1,163 +0,0 @@ -/* - * Copyright (C) 2008 The Android Open Source Project - * - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#include <stdio.h> -#include <stdlib.h> -#include <unistd.h> -#include <fcntl.h> -#include <sys/mman.h> -#include <sys/stat.h> -#include <sys/types.h> - -#include <linux/fb.h> -#include <linux/kd.h> - -#include "init.h" - -#ifdef ANDROID -#include <cutils/memory.h> -#else -void android_memset16(void *_ptr, unsigned short val, unsigned count) -{ - unsigned short *ptr = _ptr; - count >>= 1; - while(count--) - *ptr++ = val; -} -#endif - -struct FB { - unsigned short *bits; - unsigned size; - int fd; - struct fb_fix_screeninfo fi; - struct fb_var_screeninfo vi; -}; - -#define fb_width(fb) ((fb)->vi.xres) -#define fb_height(fb) ((fb)->vi.yres) -#define fb_size(fb) ((fb)->vi.xres * (fb)->vi.yres * 2) - -static int fb_open(struct FB *fb) -{ - fb->fd = open("/dev/graphics/fb0", O_RDWR); - if (fb->fd < 0) - return -1; - - if (ioctl(fb->fd, FBIOGET_FSCREENINFO, &fb->fi) < 0) - goto fail; - if (ioctl(fb->fd, FBIOGET_VSCREENINFO, &fb->vi) < 0) - goto fail; - - fb->bits = mmap(0, fb_size(fb), PROT_READ | PROT_WRITE, - MAP_SHARED, fb->fd, 0); - if (fb->bits == MAP_FAILED) - goto fail; - - return 0; - -fail: - close(fb->fd); - return -1; -} - -static void fb_close(struct FB *fb) -{ - munmap(fb->bits, fb_size(fb)); - close(fb->fd); -} - -/* there's got to be a more portable way to do this ... */ -static void fb_update(struct FB *fb) -{ - fb->vi.yoffset = 1; - ioctl(fb->fd, FBIOPUT_VSCREENINFO, &fb->vi); - fb->vi.yoffset = 0; - ioctl(fb->fd, FBIOPUT_VSCREENINFO, &fb->vi); -} - -static int vt_set_mode(int graphics) -{ - int fd, r; - fd = open("/dev/tty0", O_RDWR | O_SYNC); - if (fd < 0) - return -1; - r = ioctl(fd, KDSETMODE, (void*) (graphics ? KD_GRAPHICS : KD_TEXT)); - close(fd); - return r; -} - -/* 565RLE image format: [count(2 bytes), rle(2 bytes)] */ - -int load_565rle_image(char *fn) -{ - struct FB fb; - struct stat s; - unsigned short *data, *bits, *ptr; - unsigned count, max; - int fd; - - if (vt_set_mode(1)) - return -1; - - fd = open(fn, O_RDONLY); - if (fd < 0) { - ERROR("cannot open '%s'\n", fn); - goto fail_restore_text; - } - - if (fstat(fd, &s) < 0) { - goto fail_close_file; - } - - data = mmap(0, s.st_size, PROT_READ, MAP_SHARED, fd, 0); - if (data == MAP_FAILED) - goto fail_close_file; - - if (fb_open(&fb)) - goto fail_unmap_data; - - max = fb_width(&fb) * fb_height(&fb); - ptr = data; - count = s.st_size; - bits = fb.bits; - while (count > 3) { - unsigned n = ptr[0]; - if (n > max) - break; - android_memset16(bits, ptr[1], n << 1); - bits += n; - max -= n; - ptr += 2; - count -= 4; - } - - munmap(data, s.st_size); - fb_update(&fb); - fb_close(&fb); - close(fd); - unlink(fn); - return 0; - -fail_unmap_data: - munmap(data, s.st_size); -fail_close_file: - close(fd); -fail_restore_text: - vt_set_mode(0); - return -1; -} - |