[dm][graphic] support dm mode

1. Add backlight framework for graphic.
2. Add framebuffer and plane, power, EDID for graphic framework
3. Add boot logo render for graphic
4. Update lcd.h

Signed-off-by: GuEe-GUI <2991707448@qq.com>
This commit is contained in:
GuEe-GUI
2025-12-12 15:58:12 +08:00
committed by R b b666
parent 35bae6824b
commit 5abecc1fd0
19 changed files with 4188 additions and 1 deletions

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/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2023-02-25 GuEe-GUI the first version
*/
#include <rtthread.h>
#include <rtdevice.h>
#include <drivers/misc.h>
#ifdef RT_USING_GRAPHIC
typedef rt_int32_t fixed; /* Q16.16 */
#define FIX_ONE 65536
#define FIX_06 19661 /* 0.3 */
#define FIX_35 22938 /* 0.35 */
#define FIX_14 917504 /* 14.0 */
#define FIX_286 187432 /* 2.86 */
#define FIX_75 49152 /* 0.75 */
#define FIX_1_3 21845
#define FIX_2_3 43690
#define FIX_6 393216
#define FIX_3 196608
#define FIX_255 16711680 /* 255 */
#define FMUL(a,b) ((fixed)(((rt_int64_t)(a) * (b)) >> 16))
#define FDIV(a,b) ((fixed)(((rt_int64_t)(a) << 16) / (b)))
typedef struct { fixed x, y, z; } vec3f;
rt_inline fixed fix_floor(fixed x)
{
return x & 0xffff0000;
}
rt_inline fixed fix_fract(fixed x)
{
return x & 0x0000ffff;
}
rt_inline fixed fix_abs(fixed x)
{
return rt_abs(x);
}
rt_inline fixed fix_clamp(fixed x, fixed a, fixed b)
{
return rt_clamp(x, a, b);
}
static vec3f clamp3(vec3f v, fixed a, fixed b)
{
vec3f r =
{
.x = fix_clamp(v.x, a, b),
.y = fix_clamp(v.y, a, b),
.z = fix_clamp(v.z, a, b),
};
return r;
}
static vec3f mix3(vec3f A, vec3f B, fixed t)
{
fixed omt = FIX_ONE - t;
vec3f r =
{
.x = FMUL(A.x, omt) + FMUL(B.x, t),
.y = FMUL(A.y, omt) + FMUL(B.y, t),
.z = FMUL(A.z, omt) + FMUL(B.z, t),
};
return r;
}
static vec3f hsv2rgb(vec3f c)
{
vec3f t, r, base, mixed;
fixed pX = FMUL(fix_fract(c.x + FIX_ONE), FIX_6);
fixed pY = FMUL(fix_fract(c.x + FIX_2_3), FIX_6);
fixed pZ = FMUL(fix_fract(c.x + FIX_1_3), FIX_6);
pX = fix_abs(pX - FIX_3);
pY = fix_abs(pY - FIX_3);
pZ = fix_abs(pZ - FIX_3);
t.x = pX - FIX_ONE;
t.y = pY - FIX_ONE;
t.z = pZ - FIX_ONE;
t = clamp3(t, 0, FIX_ONE);
base.x = FIX_ONE;
base.y = FIX_ONE;
base.z = FIX_ONE;
mixed = mix3(base, t, c.y);
r.x = FMUL(c.z, mixed.x);
r.y = FMUL(c.z, mixed.y);
r.z = FMUL(c.z, mixed.z);
return r;
}
static void shader_frame(int px, int py, int width, int height, int frame,
rt_uint8_t *r, rt_uint8_t *g, rt_uint8_t *b)
{
vec3f col;
fixed uv_x, uv_y, shift, size_computed, st, x;
uv_x = FDIV((fixed)(px << 16), (fixed)(width << 16));
uv_y = FDIV((fixed)(py << 16), (fixed)(width << 16));
shift = fix_fract(FDIV(FMUL((frame << 16), FIX_06), FIX_286));
shift = FMUL(shift, FIX_286);
size_computed = FMUL(uv_x + shift - uv_y, FIX_35);
st = FMUL(size_computed, FIX_14);
x = FDIV(fix_floor(st), FIX_14);
col = hsv2rgb((vec3f){ x, FIX_75, FIX_ONE });
*r = (rt_uint8_t)((FMUL(col.x, FIX_255) >> 16) & 255);
*g = (rt_uint8_t)((FMUL(col.y, FIX_255) >> 16) & 255);
*b = (rt_uint8_t)((FMUL(col.z, FIX_255) >> 16) & 255);
}
static void conv_gray4(rt_uint8_t r, rt_uint8_t g, rt_uint8_t b, void *pixel)
{
rt_uint8_t gray = (r * 30 + g * 59 + b * 11) / 100;
*(rt_uint8_t *)pixel = gray >> 4;
}
static void conv_gray16(rt_uint8_t r, rt_uint8_t g, rt_uint8_t b, void *pixel)
{
rt_uint16_t gray = (r * 30 + g * 59 + b * 11) / 100;
rt_uint16_t out = (gray << 8) | gray;
*(rt_uint16_t *)pixel = out;
}
static void conv_rgb332(rt_uint8_t r, rt_uint8_t g, rt_uint8_t b, void *pixel)
{
*(rt_uint8_t*)pixel = ((r >> 5) << 5) | ((g >> 5) << 2) | (b >> 6);
}
static void conv_rgb444(rt_uint8_t r, rt_uint8_t g, rt_uint8_t b, void *pixel)
{
*(rt_uint16_t *)pixel = ((r >> 4) << 8) | ((g >> 4) << 4) | (b >> 4);
}
static void conv_rgb565(rt_uint8_t r, rt_uint8_t g, rt_uint8_t b, void *pixel)
{
*(rt_uint16_t *)pixel = ((r >> 3) << 11) | ((g >> 2) << 5) | (b >> 3);
}
static void conv_rgb565p(rt_uint8_t r, rt_uint8_t g, rt_uint8_t b, void *pixel)
{
*(rt_uint16_t *)pixel = ((g >> 2) << 10) | ((r >> 3) << 5) | (b >> 3);
}
static void conv_bgr565(rt_uint8_t r, rt_uint8_t g, rt_uint8_t b, void *pixel)
{
*(rt_uint16_t *)pixel = ((b >> 3) << 11) | ((g >> 2) << 5) | (r >> 3);
}
static void conv_rgb666(rt_uint8_t r, rt_uint8_t g, rt_uint8_t b, void *pixel)
{
rt_uint8_t *p = (rt_uint8_t *)pixel;
p[0] = r & 0xfc;
p[1] = g & 0xfc;
p[2] = b & 0xfc;
}
static void conv_rgb888(rt_uint8_t r, rt_uint8_t g, rt_uint8_t b, void *pixel)
{
rt_uint8_t *p = (rt_uint8_t *)pixel;
p[0] = r;
p[1] = g;
p[2] = b;
}
static void conv_bgr888(rt_uint8_t r, rt_uint8_t g, rt_uint8_t b, void *pixel)
{
rt_uint8_t *p = (rt_uint8_t*)pixel;
p[0] = b;
p[1] = g;
p[2] = r;
}
static void conv_argb888(rt_uint8_t r, rt_uint8_t g, rt_uint8_t b, void *pixel)
{
*(rt_uint32_t *)pixel = (0xffU << 24) | (r << 16) | (g << 8) | b;
}
static void conv_abgr888(rt_uint8_t r, rt_uint8_t g, rt_uint8_t b, void *pixel)
{
*(rt_uint32_t *)pixel = (0xffU << 24) | (b << 16) | (g << 8) | r;
}
static void (*conv_funcs[])(rt_uint8_t r, rt_uint8_t g, rt_uint8_t b, void *pixel) =
{
[RTGRAPHIC_PIXEL_FORMAT_GRAY4] = conv_gray4,
[RTGRAPHIC_PIXEL_FORMAT_GRAY16] = conv_gray16,
[RTGRAPHIC_PIXEL_FORMAT_RGB332] = conv_rgb332,
[RTGRAPHIC_PIXEL_FORMAT_RGB444] = conv_rgb444,
[RTGRAPHIC_PIXEL_FORMAT_RGB565] = conv_rgb565,
[RTGRAPHIC_PIXEL_FORMAT_RGB565P] = conv_rgb565p,
[RTGRAPHIC_PIXEL_FORMAT_BGR565] = conv_bgr565,
[RTGRAPHIC_PIXEL_FORMAT_RGB666] = conv_rgb666,
[RTGRAPHIC_PIXEL_FORMAT_RGB888] = conv_rgb888,
[RTGRAPHIC_PIXEL_FORMAT_BGR888] = conv_bgr888,
[RTGRAPHIC_PIXEL_FORMAT_ARGB888] = conv_argb888,
[RTGRAPHIC_PIXEL_FORMAT_ABGR888] = conv_abgr888,
};
rt_err_t graphic_start(const char *gdev, int count)
{
rt_err_t err;
rt_uint8_t *vfb, *fb, *pixel, bpp;
struct rt_device_graphic_info info;
struct rt_device *dev = rt_device_find(gdev);
void (*conv_func)(rt_uint8_t r, rt_uint8_t g, rt_uint8_t b, void *pixel);
if (!dev)
{
return -RT_EINVAL;
}
if ((err = rt_device_open(dev, 0)))
{
return err;
}
if ((err = rt_device_control(dev, RTGRAPHIC_CTRL_GET_INFO, &info)))
{
goto _end;
}
if (!(vfb = rt_malloc(info.smem_len)))
{
err = -RT_ENOMEM;
goto _end;
}
bpp = info.bits_per_pixel / 8;
conv_func = conv_funcs[info.pixel_format];
for (int frame = 0; frame < count; ++frame)
{
fb = vfb;
for (int y = 0; y < info.height; ++y)
{
pixel = fb;
for (int x = 0; x < info.width; ++x)
{
rt_uint8_t r, g, b;
shader_frame(x, y, info.width, info.height, frame, &r, &g, &b);
conv_func(r, g, b, pixel);
pixel += bpp;
}
fb += info.pitch;
}
rt_memcpy(info.framebuffer, vfb, info.smem_len);
}
rt_free(vfb);
_end:
rt_device_close(dev);
return err;
}
#ifdef RT_USING_FINSH
#include <stdlib.h>
static int _graphic_start(int argc, char**argv)
{
int count = 10;
const char *gdev = "fb0";
if (argc > 1)
{
gdev = argv[1];
}
if (argc > 2)
{
count = atoi(argv[2]);
}
return (int)graphic_start(gdev, count);
}
MSH_CMD_EXPORT_ALIAS(_graphic_start, graphic_start, fixed resolution only e.g: graphic_start("fb0", 10));
#endif /* RT_USING_FINSH */
#endif /* RT_USING_GRAPHIC */

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examples/test/dm_hmi_test.c Normal file
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/*
* Copyright (c) 2006-2021, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2023-02-25 GuEe-GUI the first version
*/
#include <rtthread.h>
#include <rtdevice.h>
#include <cpuport.h>
#include <drivers/misc.h>
#if defined(RT_USING_GRAPHIC) && defined(RT_USING_INPUT)
#define CURSOR_WIDTH 64
#define CURSOR_HEIGHT 64
struct hmi_info
{
struct rt_device *gdev;
struct rt_device *idev;
struct rt_device_graphic_info info;
struct rt_device_notify event_notify;
struct rt_input_handler handler;
rt_bool_t event;
rt_bool_t vsync;
rt_bool_t keydown;
rt_uint32_t x, y;
rt_uint32_t dx, dy;
rt_uint32_t bytes_per_pixel;
rt_ubase_t line[2];
rt_ubase_t colors[4];
void *backend_framebuffer;
};
static rt_bool_t hmi_working;
static struct rt_input_device *to_input_device(struct rt_device *idev)
{
return rt_container_of(idev, struct rt_input_device, parent);
}
static rt_ubase_t to_color(rt_uint8_t color255, rt_ubase_t color_max)
{
return (rt_ubase_t)color255 * color_max / 255;
}
static void hmi_reset(struct hmi_info *hmi)
{
void *cursor;
rt_ubase_t none_alpha;
rt_ubase_t red_off, green_off, blue_off, alpha_off;
rt_ubase_t red_mask, green_mask, blue_mask, alpha_mask;
struct fb_var_screeninfo var;
if (hmi->backend_framebuffer)
{
rt_free(hmi->backend_framebuffer);
}
rt_device_control(hmi->gdev, FBIOGET_VSCREENINFO, &var);
rt_device_control(hmi->gdev, RTGRAPHIC_CTRL_GET_INFO, &hmi->info);
hmi->backend_framebuffer = rt_malloc(hmi->info.smem_len);
hmi->bytes_per_pixel = hmi->info.bits_per_pixel / 8;
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);
if (var.transp.length)
{
alpha_off = var.transp.offset;
alpha_mask = RT_GENMASK(var.transp.length - 1, 0);
}
else
{
alpha_off = 0;
alpha_mask = 0;
}
if ((cursor = rt_malloc(CURSOR_WIDTH * CURSOR_HEIGHT * hmi->bytes_per_pixel)))
{
rt_uint8_t *stream = cursor;
rt_ubase_t color = ((to_color(0x82, red_mask)) << red_off) |
(to_color(0x50, green_mask) << green_off) |
(to_color(0xdf, blue_mask) << blue_off) |
(to_color(0xcc, alpha_mask) << alpha_off);
for (int y = 0; y < CURSOR_HEIGHT; ++y)
{
for (int x = 0; x < CURSOR_WIDTH; ++x)
{
rt_memcpy(stream, &color, hmi->bytes_per_pixel);
stream += hmi->bytes_per_pixel;
}
}
rt_device_control(hmi->gdev, RT_DEVICE_CTRL_CURSOR_SET_TYPE, cursor);
rt_free(cursor);
}
none_alpha = alpha_mask << alpha_off;
hmi->line[0] = ~0UL;
hmi->line[1] = none_alpha;
hmi->colors[0] = ((to_color(0xff, red_mask)) << red_off) |
(to_color(0x4b, green_mask) << green_off) |
(to_color(0x00, blue_mask) << blue_off) | none_alpha;
hmi->colors[1] = ((to_color(0x7f, red_mask)) << red_off) |
(to_color(0xdb, green_mask) << green_off) |
(to_color(0x3b, blue_mask) << blue_off) | none_alpha;
hmi->colors[2] = ((to_color(0x00, red_mask)) << red_off) |
(to_color(0xa4, green_mask) << green_off) |
(to_color(0xef, blue_mask) << blue_off) | none_alpha;
hmi->colors[3] = ((to_color(0xff, red_mask)) << red_off) |
(to_color(0xb8, green_mask) << green_off) |
(to_color(0x1c, blue_mask) << blue_off) | none_alpha;
hmi->event = RT_FALSE;
}
static void hmi_graphic_notify(rt_device_t dev)
{
struct hmi_info *hmi = (void *)dev;
hmi->event = RT_TRUE;
}
static rt_bool_t hmi_input_callback(struct rt_input_handler *handler,
struct rt_input_event *ev)
{
struct hmi_info *hmi = handler->priv;
if (ev->type == EV_ABS)
{
if (ev->code == 0)
{
hmi->dx = (ev->value * hmi->info.width) /
(handler->idev->absinfo->maximum - handler->idev->absinfo->minimum);
}
else if (ev->code == 1)
{
hmi->dy = (ev->value * hmi->info.height) /
(handler->idev->absinfo->maximum - handler->idev->absinfo->minimum);
}
}
else if (ev->type == EV_KEY)
{
if (ev->code == BTN_LEFT)
{
if (hmi->keydown && ev->value == 0)
{
/* Swap lines color */
hmi->line[0] ^= hmi->line[1];
hmi->line[1] ^= hmi->line[0];
hmi->line[0] ^= hmi->line[1];
hmi->keydown = RT_FALSE;
hmi->vsync = RT_FALSE;
}
else
{
hmi->keydown = RT_TRUE;
}
}
}
else if (ev->type == EV_SYN)
{
hmi->vsync = RT_FALSE;
}
return RT_TRUE;
}
static void hmi_loop(void *param)
{
struct hmi_info *hmi = param;
struct rt_device_rect_info rect;
struct rt_device_graphic_ops *gops;
/* Graphic device event */
hmi->event_notify.notify = &hmi_graphic_notify;
hmi->event_notify.dev = (void *)hmi;
rt_device_control(hmi->gdev, RT_DEVICE_CTRL_NOTIFY_SET, &hmi->event_notify);
/* Input device event */
hmi->handler.idev = to_input_device(hmi->idev);
hmi->handler.identify = RT_NULL;
hmi->handler.callback = &hmi_input_callback;
hmi->handler.priv = hmi;
rt_input_add_handler(&hmi->handler);
hmi->backend_framebuffer = RT_NULL;
hmi_reset(hmi);
hmi->dx = hmi->info.width >> 1;
hmi->dy = hmi->info.height >> 1;
rect.x = 0;
rect.y = 0;
gops = rt_graphix_ops(hmi->gdev);
rt_device_control(hmi->gdev, RTGRAPHIC_CTRL_POWERON, RT_NULL);
while (hmi_working)
{
rt_ubase_t pos;
/* Wait graphic change */
if (hmi->event)
{
hmi_reset(hmi);
}
hmi->x = hmi->dx;
hmi->y = hmi->dy;
rect.width = hmi->info.width;
rect.height = hmi->info.height;
pos = RTGRAPHIC_PIXEL_POSITION(hmi->x, hmi->y);
for (int i = 0; i < RT_ARRAY_SIZE(hmi->colors); ++i)
{
rt_uint32_t x1, y1, x2, y2;
void *fb = hmi->backend_framebuffer ? : hmi->info.framebuffer;
switch (i)
{
case 0:
x1 = 0;
y1 = 0;
x2 = hmi->x;
y2 = hmi->y;
break;
case 1:
x1 = hmi->x;
y1 = 0;
x2 = hmi->info.width;
y2 = hmi->y;
break;
case 2:
x1 = 0;
y1 = hmi->y;
x2 = hmi->x;
y2 = hmi->info.height;
break;
case 3:
x1 = hmi->x;
y1 = hmi->y;
x2 = hmi->info.width;
y2 = hmi->info.height;
break;
}
fb += x1 * hmi->bytes_per_pixel + y1 * hmi->info.pitch;
for (int y = y1; y < y2; ++y)
{
void *fb_entry = fb;
for (int x = x1; x < x2; ++x)
{
rt_memcpy(fb, &hmi->colors[i], hmi->bytes_per_pixel);
fb += hmi->bytes_per_pixel;
}
fb = fb_entry + hmi->info.pitch;
}
}
if (hmi->backend_framebuffer)
{
rt_memcpy(hmi->info.framebuffer, hmi->backend_framebuffer, hmi->info.smem_len);
}
gops->draw_hline((void *)&hmi->line[0], 0, rect.width, hmi->y);
gops->draw_vline((void *)&hmi->line[1], hmi->x, 0, rect.height);
rt_device_control(hmi->gdev, RTGRAPHIC_CTRL_RECT_UPDATE, &rect);
rt_device_control(hmi->gdev, RT_DEVICE_CTRL_CURSOR_SET_POSITION, (void *)pos);
/* Next position */
hmi->vsync = RT_TRUE;
rt_hw_wmb();
while (hmi_working && hmi->vsync)
{
rt_thread_mdelay(1);
}
}
rt_device_control(hmi->gdev, RTGRAPHIC_CTRL_POWEROFF, RT_NULL);
rt_memset(&hmi->event_notify, 0, sizeof(hmi->event_notify));
rt_device_control(hmi->gdev, RT_DEVICE_CTRL_NOTIFY_SET, &hmi->event_notify);
rt_input_del_handler(&hmi->handler);
rt_device_close(hmi->gdev);
rt_device_close(hmi->idev);
if (hmi->backend_framebuffer)
{
rt_free(hmi->backend_framebuffer);
}
rt_free(hmi);
rt_thread_delete(rt_thread_self());
}
rt_err_t hmi_start(const char *gdev, const char *idev)
{
rt_err_t err;
struct hmi_info *hmi;
struct rt_thread *loop;
if (hmi_working)
{
rt_kprintf("HMI is running\n");
return -RT_EBUSY;
}
hmi = rt_malloc(sizeof(*hmi));
if (!hmi)
{
return -RT_ENOMEM;
}
hmi->gdev = rt_device_find(gdev);
hmi->idev = rt_device_find(idev);
if (!hmi->gdev || !hmi->idev)
{
rt_free(hmi);
return -RT_EINVAL;
}
if (!rt_bitmap_test_bit(to_input_device(hmi->idev)->cap, EV_ABS))
{
rt_kprintf("%s is not a ABS input\n", idev);
rt_free(hmi);
return -RT_EINVAL;
}
if ((err = rt_device_open(hmi->gdev, 0)))
{
rt_free(hmi);
return err;
}
if ((err = rt_device_open(hmi->idev, 0)))
{
rt_device_close(hmi->gdev);
rt_free(hmi);
return err;
}
loop = rt_thread_create("HMI", hmi_loop, hmi,
DM_THREAD_STACK_SIZE,
RT_THREAD_PRIORITY_MAX / 3,
rt_tick_from_millisecond(RT_GRAPHIC_UPDATE_MS));
if (!loop)
{
rt_device_close(hmi->gdev);
rt_device_close(hmi->idev);
rt_free(hmi);
return -RT_ENOMEM;
}
hmi_working = RT_TRUE;
rt_thread_startup(loop);
return RT_EOK;
}
rt_err_t hmi_stop(void)
{
hmi_working = RT_FALSE;
return RT_EOK;
}
#ifdef RT_USING_FINSH
static int _hmi_start(int argc, char**argv)
{
const char *gdev = "fb0", *idev = "input0";
if (argc == 3)
{
gdev = argv[1];
idev = argv[2];
}
return (int)hmi_start(gdev, idev);
}
MSH_CMD_EXPORT_ALIAS(_hmi_start, hmi_start, e.g: hmi_start("fb0", "input0"));
static int _hmi_stop(void)
{
return (int)hmi_stop();
}
MSH_CMD_EXPORT_ALIAS(_hmi_stop, hmi_stop, e.g: hmi_exit());
#endif /* RT_USING_FINSH */
#endif /* RT_USING_GRAPHIC && RT_USING_INPUT */