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/*
* Copyright@ Samsung Electronics Co. LTD
*
* 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 <string.h>
#include <stdlib.h>
#include <errno.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sys/ioctl.h>
#include <sys/mman.h>
#include <sys/time.h>
#include <linux/vt.h>
#include <fcntl.h>
#include <unistd.h>
#include <poll.h>
#include <signal.h>
#include <cutils/log.h>
#include "fimd_api.h"
int fb_open(int win)
{
char node[20];
int fp = -1;
sprintf(node, "%s%d", PFX_NODE_FB, win);
fp = open(node, O_RDWR);
if (fp < 0)
ALOGE("%s: fb[%d] open failed", __func__, win);
return fp;
}
int fb_close(int fp)
{
if (fp)
close(fp);
else
ALOGE("%s: fb is not allocated %d", __func__, fp);
return 0;
}
int get_fscreeninfo(int fp, struct fb_fix_screeninfo *fix)
{
int ret = -1;
ret = ioctl(fp, FBIOGET_FSCREENINFO, fix);
if (ret)
ALOGE("%s: FBIOGET_FSCREENINFO failed", __func__);
return ret;
}
int get_vscreeninfo(int fp, struct fb_var_screeninfo *var)
{
int ret = -1;
ret = ioctl(fp, FBIOGET_VSCREENINFO, var);
if (ret)
ALOGE("%s:: FBIOGET_VSCREENINFO failed", __func__);
return ret;
}
int put_vscreeninfo(int fp, struct fb_var_screeninfo *var)
{
int ret = -1;
ret = ioctl(fp, FBIOPUT_VSCREENINFO, var);
if (ret)
ALOGE("%s:: FBIOPUT_VSCREENINFO failed", __func__);
return ret;
}
int get_bytes_per_pixel(int bits_per_pixel)
{
return (bits_per_pixel == 24 || bits_per_pixel == 25 ||
bits_per_pixel == 28) ? 4 : bits_per_pixel / 8;
}
char *fb_mmap(__u32 size, int fp)
{
char *buffer;
buffer = (char *)mmap(0, size, PROT_READ | PROT_WRITE,
MAP_SHARED, fp, 0);
if (!buffer) {
ALOGE("%s:: mmap failed", __func__);
return NULL;
}
return buffer;
}
int fb_ioctl(int fp, __u32 cmd, void *arg)
{
int ret = -1;
ret = ioctl(fp, cmd, arg);
if (ret < 0)
ALOGE("%s:: ioctl (%d) failed", __func__, cmd);
return ret;
}
int fb_on(int fp)
{
int ret = -1;
ret = ioctl(fp, FBIOBLANK, FB_BLANK_UNBLANK);
if (ret)
ALOGE("%s:: FBIOBLANK failed", __func__);
return ret;
}
int fb_off(int fp)
{
int ret = -1;
ret = ioctl(fp, FBIOBLANK, FB_BLANK_POWERDOWN);
if (ret)
ALOGE("%s:: FBIOBLANK failed", __func__);
return ret;
}
int fb_off_all()
{
int fp, i;
for (i = 0; i < TOTAL_FB_NUM; i++) {
fp = fb_open(i);
if (fp < 0)
return -1;
if (ioctl(fp, FBIOBLANK, FB_BLANK_POWERDOWN) < 0)
ALOGE("%s:: FBIOBLANK failed", __func__);
fb_off(fp);
fb_close(fp);
}
return 0;
}
char *fb_init_display(int fp, int width, int height, int left_x, int top_y,
int bpp)
{
struct fb_var_screeninfo var;
struct s5ptvfb_user_window window;
int fb_size;
char *fb = NULL;
var.xres = width;
var.yres = height;
var.bits_per_pixel = bpp;
window.x = left_x;
window.y = top_y;
var.xres_virtual = var.xres;
var.yres_virtual = var.yres;
var.xoffset = 0;
var.yoffset = 0;
var.width = 0;
var.height = 0;
var.transp.length = 0;
var.activate = FB_ACTIVATE_FORCE;
fb_size = var.xres_virtual * var.yres_virtual * bpp / 8;
/* FBIOPUT_VSCREENINFO should be first */
put_vscreeninfo(fp, &var);
fb_ioctl(fp, S5PTVFB_WIN_POSITION, &window);
/* draw image */
fb = fb_mmap(fb_size, fp);
memset(fb, 0x0, fb_size);
return fb;
}
int simple_draw(char *dest, const char *src, int img_width,
struct fb_var_screeninfo *var)
{
int bytes_per_pixel = get_bytes_per_pixel(var->bits_per_pixel);
unsigned int y;
for (y = 0; y < var->yres; y++)
memcpy(dest + y * var->xres * bytes_per_pixel,
src + y * img_width * bytes_per_pixel,
var->xres * bytes_per_pixel);
return 0;
}
int draw(char *dest, const char *src, int img_width,
struct fb_var_screeninfo *var)
{
int bytes_per_pixel = get_bytes_per_pixel(var->bits_per_pixel);
unsigned int y;
if (var->bits_per_pixel == 16) {
memcpy(dest, src, var->xres * var->yres * 2);
} else {
for (y = 0; y < var->yres; y++)
memcpy(dest + y * var->xres * bytes_per_pixel,
src + y * img_width * bytes_per_pixel,
var->xres * bytes_per_pixel);
}
return 0;
}
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