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/*
* Copyright (c) 2006-2023, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2023-02-25 GuEe-GUI the first version
*/
#include <rthw.h>
#include <rtthread.h>
#include <rtdevice.h>
#define DBG_TAG "graphic.logo"
#define DBG_LVL DBG_INFO
#include <rtdbg.h>
#if __STARTUP_LOGO_WIDTH__ && __STARTUP_LOGO_HEIGHT__ && __STARTUP_LOGO_COLOR_MAX__
static rt_uint8_t builtin_logo[] =
{
#include "logo.inc"
};
static void *startup_logo = builtin_logo;
#else
static void *startup_logo = RT_NULL;
#endif
static int startup_logo_width = __STARTUP_LOGO_WIDTH__;
static int startup_logo_height = __STARTUP_LOGO_HEIGHT__;
static int startup_logo_color_max = __STARTUP_LOGO_COLOR_MAX__;
rt_err_t rt_graphic_logo_change(void *data, int width, int height, int color_max)
{
if (!data && !width && !height && !color_max)
{
/* Disable logo */
startup_logo = RT_NULL;
}
else if (data && width > 0 && height > 0 && color_max > 0)
{
startup_logo = data;
startup_logo_width = width;
startup_logo_height = height;
startup_logo_color_max = color_max;
}
else
{
return -RT_EINVAL;
}
return RT_EOK;
}
static rt_ubase_t to_grayscale(rt_ubase_t red, rt_ubase_t green, rt_ubase_t blue)
{
return (299 * red + 587 * green + 114 * blue) / 1000;
}
static rt_ubase_t to_color(rt_ubase_t color, rt_ubase_t in_color_max, rt_ubase_t out_color_max)
{
return color * out_color_max / in_color_max;
}
static rt_ubase_t gray_reordering(rt_ubase_t red, rt_ubase_t red_off,
rt_ubase_t green, rt_ubase_t green_off,
rt_ubase_t blue, rt_ubase_t blue_off,
rt_ubase_t in_color_max, rt_ubase_t out_color_max)
{
return to_grayscale(to_color(red, in_color_max, out_color_max),
to_color(green, in_color_max, out_color_max),
to_color(blue, in_color_max, out_color_max));
}
static rt_ubase_t rgb_reordering(rt_ubase_t red, rt_ubase_t red_off,
rt_ubase_t green, rt_ubase_t green_off,
rt_ubase_t blue, rt_ubase_t blue_off,
rt_ubase_t in_color_max, rt_ubase_t out_color_max)
{
return (to_color(red, in_color_max, out_color_max) << red_off) |
(to_color(green, in_color_max, out_color_max) << green_off) |
(to_color(blue, in_color_max, out_color_max) << blue_off);
}
rt_err_t rt_graphic_logo_render(struct rt_graphic_device *gdev)
{
rt_err_t err;
int fb_color_max;
rt_ubase_t xlate, none_alpha;
rt_ubase_t red_off, green_off, blue_off;
rt_ubase_t red_mask, green_mask, blue_mask;
rt_uint8_t *logo, *fb, bytes_per_pixel;
rt_ubase_t (*color_reordering)(rt_ubase_t, rt_ubase_t,
rt_ubase_t, rt_ubase_t,
rt_ubase_t, rt_ubase_t,
rt_ubase_t, rt_ubase_t);
struct fb_var_screeninfo var;
struct rt_device_rect_info rect;
struct rt_device_graphic_info info;
struct rt_device *fbdev = &gdev->parent;
if (!startup_logo)
{
return RT_EOK;
}
if ((err = rt_device_open(fbdev, 0)))
{
return err;
}
if ((err = rt_device_control(fbdev, FBIOGET_VSCREENINFO, &var)))
{
LOG_E("Get framebuffer %s error = %s", "var", rt_strerror(err));
goto _close_fbdev;
}
if (startup_logo_width > var.xres || startup_logo_height > var.yres)
{
LOG_E("PPM logo[%u, %u] Out of screen[%u, %u]",
startup_logo_width, startup_logo_height, var.xres, var.yres);
err = -RT_EINVAL;
goto _close_fbdev;
}
if ((err = rt_device_control(fbdev, RTGRAPHIC_CTRL_GET_INFO, &info)))
{
LOG_E("Get framebuffer %s error = %s", "info", rt_strerror(err));
goto _close_fbdev;
}
if ((err = rt_device_control(fbdev, RTGRAPHIC_CTRL_POWERON, RT_NULL)))
{
LOG_E("Power on graphic device error = %s", rt_strerror(err));
goto _close_fbdev;
}
if (var.grayscale)
{
color_reordering = &gray_reordering;
}
else
{
color_reordering = &rgb_reordering;
}
bytes_per_pixel = var.bits_per_pixel / 8;
xlate = (var.xres - startup_logo_width) * bytes_per_pixel;
rect.x = (var.xres - startup_logo_width) >> 1;
rect.y = (var.yres - startup_logo_height) >> 1;
rect.width = startup_logo_width,
rect.height = startup_logo_height,
fb = (void *)info.framebuffer;
fb += rect.x * bytes_per_pixel + rect.y * info.pitch;
logo = startup_logo;
red_off = var.red.offset;
red_mask = RT_GENMASK(var.red.length - 1, 0);
green_off = var.green.offset;
green_mask = RT_GENMASK(var.green.length - 1, 0);
blue_off = var.blue.offset;
blue_mask = RT_GENMASK(var.blue.length - 1, 0);
fb_color_max = rt_max_t(int, rt_max_t(int, red_mask, green_mask), blue_mask);
if (var.transp.length)
{
none_alpha = RT_GENMASK(var.transp.length - 1, 0) << var.transp.offset;
}
else
{
none_alpha = 0;
}
for (int dy = 0; dy < startup_logo_height; ++dy)
{
for (int dx = 0; dx < startup_logo_width; ++dx)
{
rt_ubase_t color = color_reordering(logo[0], red_off,
logo[1], green_off,
logo[2], blue_off,
fb_color_max, startup_logo_color_max) |
none_alpha;
rt_memcpy(fb, &color, bytes_per_pixel);
fb += bytes_per_pixel;
logo += 3;
}
fb += xlate;
}
rt_device_control(fbdev, RTGRAPHIC_CTRL_RECT_UPDATE, &rect);
rt_device_control(fbdev, RTGRAPHIC_CTRL_WAIT_VSYNC, RT_NULL);
/* Complete */
startup_logo = RT_NULL;
/*
* Should recycle here, logo takes up too much memory
* if builtin is not RT_GRAPHIC_LOGO_NONE.
*/
_close_fbdev:
rt_device_close(fbdev);
return err;
}
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