98 lines
3.2 KiB
C
98 lines
3.2 KiB
C
/***************************************************************************************
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这个主要是预览,通过scale3_msi将dvp/csi数据scale到对应的分辨率作为数据流发送出去
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然后lcd_msi需要接收对应的数据去显示
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这里只是产生对应数据流,数据用途实际需要终端流(比如lcd流)接收后去处理
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S_PREVIEW_SCALE3 ----> R_SIM_VIDEO(320x180) ----> R_VIDEO_P0
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(scale3) (虚拟屏幕)
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***************************************************************************************/
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#include "lvgl/lvgl.h"
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#include "lvgl_ui.h"
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#include "stream_frame.h"
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#include "lib/heap/av_heap.h"
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#include "lib/heap/av_psram_heap.h"
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//data申请空间函数
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#define STREAM_MALLOC av_psram_malloc
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#define STREAM_FREE av_psram_free
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#define STREAM_ZALLOC av_psram_zalloc
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//结构体申请空间函数
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#define STREAM_LIBC_MALLOC av_malloc
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#define STREAM_LIBC_FREE av_free
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#define STREAM_LIBC_ZALLOC av_zalloc
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extern lv_indev_t * indev_keypad;
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extern lv_style_t g_style;
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struct preview_ui_s
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{
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lv_group_t *last_group;
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lv_obj_t *base_ui;
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lv_group_t *now_group;
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lv_obj_t *now_ui;
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struct msi *s;
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struct msi *sim_video;
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};
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static void exit_preview_ui(lv_event_t * e)
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{
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struct preview_ui_s *ui_s = (struct preview_ui_s *)lv_event_get_user_data(e);
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lv_indev_set_group(indev_keypad, ui_s->last_group);
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lv_obj_clear_flag(ui_s->base_ui, LV_OBJ_FLAG_HIDDEN);
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lv_group_del(ui_s->now_group);
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ui_s->now_group = NULL;
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msi_destroy(ui_s->s);
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msi_destroy(ui_s->sim_video);
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//关闭VIDEO P0,VIDEO P1的使能，释放占住的scale3的fb
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msi_cmd(R_VIDEO_P0, MSI_CMD_LCD_VIDEO, MSI_VIDEO_ENABLE, 0);
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lv_obj_del(ui_s->now_ui);
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}
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//进入预览的ui,那么就要创建新的ui去显示预览图了
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static void enter_preview_ui(lv_event_t * e)
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{
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struct preview_ui_s *ui_s = (struct preview_ui_s *)lv_event_get_user_data(e);
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lv_obj_add_flag(ui_s->base_ui, LV_OBJ_FLAG_HIDDEN);
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lv_obj_t *ui = lv_obj_create(lv_scr_act());
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ui_s->now_ui = ui;
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lv_obj_add_style(ui, &g_style, 0);
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lv_obj_set_size(ui, LV_PCT(100), LV_PCT(100));
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ui_s->sim_video = sim_video_msi(R_SIM_VIDEO, 800, 480, 0);
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if (ui_s->sim_video)
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{
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msi_add_output(ui_s->sim_video, NULL, R_VIDEO_P0);
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msi_cmd(R_VIDEO_P0, MSI_CMD_LCD_VIDEO, MSI_VIDEO_ENABLE, 1);
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}
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ui_s->s = scale3_msi(S_PREVIEW_SCALE3);
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if (ui_s->s)
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{
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msi_add_output(ui_s->s, NULL, R_SIM_VIDEO);
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ui_s->s->enable = 1;
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}
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lv_group_t *group;
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group = lv_group_create();
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lv_indev_set_group(indev_keypad, group);
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lv_group_add_obj(group, ui);
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ui_s->now_group = group;
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lv_obj_add_event_cb(ui, exit_preview_ui, LV_EVENT_PRESSED, ui_s);
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}
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lv_obj_t *preview_sim_video_ui(lv_group_t *group,lv_obj_t *base_ui)
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{
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struct preview_ui_s *ui_s = (struct preview_ui_s*)STREAM_LIBC_ZALLOC(sizeof(struct preview_ui_s));
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ui_s->last_group = group;
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ui_s->base_ui = base_ui;
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lv_obj_t *btn = lv_list_add_btn(base_ui, NULL, "preview_sim_video");
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lv_group_add_obj(group, btn);
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lv_obj_add_event_cb(btn, enter_preview_ui, LV_EVENT_PRESSED, ui_s);
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return btn;
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} |