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rt-thread-official/bsp/nuvoton/nk-n9h30/applications/lvgl/lv_port_disp.c

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/*
* Copyright (c) 2006-2022, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2021-12-17 Wayne The first version
*/
#include <lvgl.h>
#include "nu_2d.h"
#include "mmu.h"
#define LOG_TAG "lvgl.disp"
#define DBG_ENABLE
#define DBG_SECTION_NAME LOG_TAG
#define DBG_LEVEL DBG_ERROR
#define DBG_COLOR
#include <rtdbg.h>
/*A static or global variable to store the buffers*/
static lv_disp_draw_buf_t disp_buf;
static rt_device_t lcd_device = 0;
static struct rt_device_graphic_info info;
static lv_disp_drv_t disp_drv; /*Descriptor of a display driver*/
static void *buf3_next = RT_NULL;
static uint32_t u32FirstFlush = 0;
static void nu_antitearing(lv_disp_draw_buf_t *draw_buf, lv_color_t *color_p)
{
if (buf3_next)
{
/* vsync-none: Use triple screen-sized buffers. */
if (draw_buf->buf1 == color_p)
draw_buf->buf1 = buf3_next;
else
draw_buf->buf2 = buf3_next;
draw_buf->buf_act = buf3_next;
buf3_next = color_p;
}
else
{
/* vsync-after: Use ping-pong screen-sized buffers only.*/
rt_device_control(lcd_device, RTGRAPHIC_CTRL_WAIT_VSYNC, RT_NULL);
}
}
static void nu_flush_direct(lv_disp_drv_t *disp_drv, const lv_area_t *area, lv_color_t *color_p)
{
void *pvDstReDraw;
#if (LV_USE_GPU_N9H30_GE2D==0)
mmu_clean_dcache((uint32_t)color_p, disp_drv->draw_buf->size * sizeof(lv_color_t));
#endif
/* Use PANDISPLAY */
rt_device_control(lcd_device, RTGRAPHIC_CTRL_PAN_DISPLAY, color_p);
/* Need to do on-/off- screen buffer synchronization. Here, we do a source-copying using GE2D engine. */
if (disp_drv->draw_buf->buf1 == color_p)
pvDstReDraw = disp_drv->draw_buf->buf2;
else
pvDstReDraw = disp_drv->draw_buf->buf1;
// Enter GE2D ->
ge2dInit(sizeof(lv_color_t) * 8, info.width, info.height, pvDstReDraw);
ge2dBitblt_SetAlphaMode(-1, 0, 0);
ge2dBitblt_SetDrawMode(-1, 0, 0);
ge2dSpriteBlt_Screen(0, 0, info.width, info.height, (void *)color_p);
// -> Leave GE2D
#if (LV_USE_GPU_N9H30_GE2D==0)
mmu_invalidate_dcache((uint32_t)pvDstReDraw, disp_drv->draw_buf->size * sizeof(lv_color_t));
#endif
nu_antitearing(disp_drv->draw_buf, color_p);
if (!u32FirstFlush)
{
/* Enable backlight at first flushing. */
rt_device_control(lcd_device, RTGRAPHIC_CTRL_POWERON, RT_NULL);
u32FirstFlush = 1;
}
lv_disp_flush_ready(disp_drv);
}
static void nu_flush_full_refresh(lv_disp_drv_t *disp_drv, const lv_area_t *area, lv_color_t *color_p)
{
#if (LV_USE_GPU_N9H30_GE2D==0)
mmu_clean_dcache((uint32_t)color_p, disp_drv->draw_buf->size * sizeof(lv_color_t));
#endif
/* Use PANDISPLAY without H/W copying */
rt_device_control(lcd_device, RTGRAPHIC_CTRL_PAN_DISPLAY, color_p);
nu_antitearing(disp_drv->draw_buf, color_p);
if (!u32FirstFlush)
{
/* Enable backlight at first flushing. */
rt_device_control(lcd_device, RTGRAPHIC_CTRL_POWERON, RT_NULL);
u32FirstFlush = 1;
}
lv_disp_flush_ready(disp_drv);
}
static void nu_flush(lv_disp_drv_t *disp_drv, const lv_area_t *area, lv_color_t *color_p)
{
int32_t flush_area_w = lv_area_get_width(area);
int32_t flush_area_h = lv_area_get_height(area);
//rt_kprintf("[%s %08x] %dx%d %d %d %d %d\n", __func__, color_p, flush_area_w, flush_area_h, area->x1, area->y1, area->x2, area->y2 );
/* Update dirty region. */
// Enter GE2D ->
ge2dInit(sizeof(lv_color_t) * 8, info.width, info.height, (void *)info.framebuffer);
ge2dBitblt_SetAlphaMode(-1, 0, 0);
ge2dBitblt_SetDrawMode(-1, 0, 0);
ge2dSpriteBlt_Screen(area->x1, area->y1, flush_area_w, flush_area_h, (void *)color_p);
// -> Leave GE2D
if (!u32FirstFlush)
{
/* Enable backlight at first flushing. */
rt_device_control(lcd_device, RTGRAPHIC_CTRL_POWERON, RT_NULL);
u32FirstFlush = 1;
}
lv_disp_flush_ready(disp_drv);
}
#if LV_VERSION_EQUAL(8, 1, 0)
static void nu_fill_cb(struct _lv_disp_drv_t *disp_drv, lv_color_t *dest_buf, lv_coord_t dest_width,
const lv_area_t *fill_area, lv_color_t color)
{
int32_t fill_area_w = lv_area_get_width(fill_area);
int32_t fill_area_h = lv_area_get_height(fill_area);
//rt_kprintf("[%s %08x] %dx%d %d %d %d %d\n", __func__, dest_buf, fill_area_w, fill_area_h, fill_area->x1, fill_area->y1, fill_area->x2, fill_area->y2 );
if (lv_area_get_size(fill_area) < 3600)
{
/*Software filling*/
int y;
lv_color_t *disp_buf_first = dest_buf + dest_width * fill_area->y1 + fill_area->x1;
for (y = 0; y < fill_area_h; y++)
{
lv_color_fill(disp_buf_first, color, fill_area_w);
disp_buf_first += dest_width;
}
}
else
{
#if (LV_USE_GPU_N9H30_GE2D==0)
mmu_clean_invalidated_dcache((uint32_t)dest_buf, disp_drv->draw_buf->size * sizeof(lv_color_t));
#endif
/*Hardware filling*/
if (disp_drv->direct_mode || disp_drv->full_refresh)
{
// Enter GE2D ->
ge2dInit(sizeof(lv_color_t) * 8, info.width, info.height, (void *)dest_buf);
}
else
{
// Enter GE2D ->
ge2dInit(sizeof(lv_color_t) * 8, fill_area_w, fill_area_h, (void *)dest_buf);
}
ge2dClip_SetClip(fill_area->x1, fill_area->y1, fill_area->x2, fill_area->y2);
if (sizeof(lv_color_t) == 4)
{
ge2dFill_Solid(fill_area->x1, fill_area->y1, fill_area_w, fill_area_h, color.full);
}
else if (sizeof(lv_color_t) == 2)
{
ge2dFill_Solid_RGB565(fill_area->x1, fill_area->y1, fill_area_w, fill_area_h, color.full);
}
ge2dClip_SetClip(-1, 0, 0, 0);
// -> Leave GE2D
}
}
#endif
void nu_perf_monitor(struct _lv_disp_drv_t *disp_drv, uint32_t time, uint32_t px)
{
rt_kprintf("Elapsed: %dms, Pixel: %d, Bytes:%d, %d%\n", time, px, px * sizeof(lv_color_t), px * 100 / disp_drv->draw_buf->size);
}
void lv_port_disp_init(void)
{
rt_err_t result;
void *buf1 = RT_NULL;
void *buf2 = RT_NULL;
uint32_t u32FBSize;
lcd_device = rt_device_find("lcd");
if (lcd_device == 0)
{
LOG_E("error!");
return;
}
/* get framebuffer address */
result = rt_device_control(lcd_device, RTGRAPHIC_CTRL_GET_INFO, &info);
if (result != RT_EOK)
{
LOG_E("error!");
/* get device information failed */
return;
}
/* Disable backlight at startup. */
rt_device_control(lcd_device, RTGRAPHIC_CTRL_POWEROFF, RT_NULL);
RT_ASSERT(info.bits_per_pixel == 8 || info.bits_per_pixel == 16 ||
info.bits_per_pixel == 24 || info.bits_per_pixel == 32);
lv_disp_drv_init(&disp_drv); /*Basic initialization*/
/*Set the resolution of the display*/
disp_drv.hor_res = info.width;
disp_drv.ver_res = info.height;
u32FBSize = info.height * info.width * (info.bits_per_pixel / 8);
#if (LV_USE_GPU_N9H30_GE2D==0)
disp_drv.full_refresh = 1;
//disp_drv.direct_mode = 1;
#endif
if (disp_drv.full_refresh || disp_drv.direct_mode)
{
#if (LV_USE_GPU_N9H30_GE2D==1)
buf1 = (void *)info.framebuffer; // Use Non-cacheable VRAM
#else
buf1 = (void *)((uint32_t)info.framebuffer & ~0x80000000); // Use Cacheable VRAM
#endif
buf2 = (void *)((uint32_t)buf1 + u32FBSize);
buf3_next = (void *)((uint32_t)buf2 + u32FBSize);
rt_kprintf("LVGL: Use triple screen-sized buffers(%s) - buf1@%08x, buf2@%08x, buf3_next@%08x\n", (disp_drv.full_refresh == 1) ? "full_refresh" : "direct_mode", buf1, buf2, buf3_next);
if (disp_drv.direct_mode)
disp_drv.flush_cb = nu_flush_direct;
else
disp_drv.flush_cb = nu_flush_full_refresh;
}
else
{
buf1 = (void *)(((uint32_t)info.framebuffer) + u32FBSize);
buf2 = (void *)((uint32_t)buf1 + u32FBSize);
rt_kprintf("LVGL: Use two screen-sized buffers - buf1@%08x, buf2@%08x\n", buf1, buf2);
rt_device_control(lcd_device, RTGRAPHIC_CTRL_PAN_DISPLAY, info.framebuffer);
disp_drv.flush_cb = nu_flush;
}
/*Initialize `disp_buf` with the buffer(s).*/
lv_disp_draw_buf_init(&disp_buf, buf1, buf2, info.width * info.height);
result = rt_device_open(lcd_device, 0);
if (result != RT_EOK)
{
LOG_E("error!");
return;
}
/*Set a display buffer*/
disp_drv.draw_buf = &disp_buf;
#if LV_VERSION_EQUAL(8, 1, 0)
/*Fill a memory with a color (GPU only)*/
disp_drv.gpu_fill_cb = nu_fill_cb;
#endif
/*Called after every refresh cycle to tell the rendering and flushing time + the number of flushed pixels*/
//disp_drv.monitor_cb = nu_perf_monitor;
/*Finally register the driver*/
lv_disp_drv_register(&disp_drv);
}
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