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move basic descriptors to lv_disp_t

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This commit is contained in:
Gabor Kiss-Vamosi
2019-02-10 11:06:47 +01:00
parent e2e6479fb0
commit 5b92b4d01b
13 changed files with 166 additions and 184 deletions
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17
lv_core/lv_disp.c
View File

@@ -32,23 +32,6 @@
* GLOBAL FUNCTIONS
**********************/
lv_coord_t lv_disp_get_hor_res(lv_disp_t * disp)
{
if(disp == NULL) disp = lv_disp_get_active();
if(disp == NULL) return LV_HOR_RES_MAX;
else return disp->driver.hor_res;
}
lv_coord_t lv_disp_get_ver_res(lv_disp_t * disp)
{
if(disp == NULL) disp = lv_disp_get_active();
if(disp == NULL) return LV_VER_RES_MAX;
else return disp->driver.ver_res;
}
/**********************
* STATIC FUNCTIONS
**********************/

2
lv_core/lv_disp.h
View File

@@ -13,7 +13,7 @@ extern "C" {
/*********************
* INCLUDES
*********************/
#include "../lv_hal/lv_hal_disp.h"
#include "../lv_hal/lv_hal.h"
/*********************
* DEFINES

45
lv_core/lv_indev.c
View File

@@ -121,12 +121,13 @@ void lv_indev_reset_lpr(lv_indev_t * indev)
*/
void lv_indev_enable(lv_hal_indev_type_t type, bool enable)
{
lv_indev_t * i = lv_indev_next(NULL);
while(i) {
if(i->driver.type == type) i->proc.disabled = enable == false ? 1 : 0;
i = lv_indev_next(i);
}
// lv_indev_t * i = lv_indev_next(NULL);
//
// while(i) {
// if(i->driver.type == type) i->proc.disabled = enable == false ? 1 : 0;
// i = lv_indev_next(i);
// }
}
/**
@@ -244,19 +245,23 @@ void lv_indev_get_vect(const lv_indev_t * indev, lv_point_t * point)
*/
uint32_t lv_indev_get_inactive_time(const lv_indev_t * indev)
{
uint32_t t;
if(indev) return t = lv_tick_elaps(indev->last_activity_time);
//TODO
// uint32_t t;
//
// if(indev) return t = lv_tick_elaps(indev->last_activity_time);
//
// lv_indev_t * i;
// t = UINT16_MAX;
// i = lv_indev_next(NULL);
// while(i) {
// t = LV_MATH_MIN(t, lv_tick_elaps(i->last_activity_time));
// i = lv_indev_next(i);
// }
//
// return t;
lv_indev_t * i;
t = UINT16_MAX;
i = lv_indev_next(NULL);
while(i) {
t = LV_MATH_MIN(t, lv_tick_elaps(i->last_activity_time));
i = lv_indev_next(i);
}
return t;
return 0;
}
/**
@@ -583,14 +588,14 @@ static void indev_proc_press(lv_indev_proc_t * proc)
/*If there is no last object then search*/
if(proc->act_obj == NULL) {
pr_obj = indev_search_obj(proc, lv_layer_top());
if(pr_obj == NULL) pr_obj = indev_search_obj(proc, lv_scr_act());
pr_obj = indev_search_obj(proc, lv_layer_top(NULL));
if(pr_obj == NULL) pr_obj = indev_search_obj(proc, lv_scr_act(NULL));
}
/*If there is last object but it is not dragged and not protected also search*/
else if(proc->drag_in_prog == 0 &&
lv_obj_is_protected(proc->act_obj, LV_PROTECT_PRESS_LOST) == false) {/*Now act_obj != NULL*/
pr_obj = indev_search_obj(proc, lv_layer_top());
if(pr_obj == NULL) pr_obj = indev_search_obj(proc, lv_scr_act());
pr_obj = indev_search_obj(proc, lv_layer_top(NULL));
if(pr_obj == NULL) pr_obj = indev_search_obj(proc, lv_scr_act(NULL));
}
/*If a dragable or a protected object was the last then keep it*/
else {

91
lv_core/lv_obj.c
View File

@@ -17,6 +17,7 @@
#include "../lv_misc/lv_task.h"
#include "../lv_misc/lv_fs.h"
#include "../lv_misc/lv_ufs.h"
#include "../lv_hal/lv_hal.h"
#include <stdint.h>
#include <string.h>
#include "../lv_misc/lv_gc.h"
@@ -62,13 +63,6 @@ static lv_res_t lv_obj_signal(lv_obj_t * obj, lv_signal_t sign, void * param);
*/
void lv_init(void)
{
LV_GC_ROOT(_lv_def_scr) = NULL;
LV_GC_ROOT(_lv_act_scr) = NULL;
LV_GC_ROOT(_lv_top_layer) = NULL;
LV_GC_ROOT(_lv_sys_layer) = NULL;
LV_GC_ROOT(_lv_disp_list) = NULL;
LV_GC_ROOT(_lv_indev_list) = NULL;
LV_LOG_TRACE("lv_init started");
/*Initialize the lv_misc modules*/
@@ -91,20 +85,9 @@ void lv_init(void)
/*Initialize the screen refresh system*/
lv_refr_init();
/*Create the default screen*/
lv_ll_init(&LV_GC_ROOT(_lv_scr_ll), sizeof(lv_obj_t));
LV_GC_ROOT(_lv_def_scr) = lv_obj_create(NULL, NULL);
lv_ll_init(&LV_GC_ROOT(_lv_disp_ll), sizeof(lv_disp_t));
lv_ll_init(&LV_GC_ROOT(_lv_indev_ll), sizeof(lv_indev_t));
LV_GC_ROOT(_lv_act_scr) = LV_GC_ROOT(_lv_def_scr);
LV_GC_ROOT(_lv_top_layer) = lv_obj_create(NULL, NULL);
lv_obj_set_style(LV_GC_ROOT(_lv_top_layer), &lv_style_transp_fit);
LV_GC_ROOT(_lv_sys_layer) = lv_obj_create(NULL, NULL);
lv_obj_set_style(LV_GC_ROOT(_lv_sys_layer), &lv_style_transp_fit);
/*Refresh the screen*/
lv_obj_invalidate(LV_GC_ROOT(_lv_act_scr));
#if LV_INDEV_READ_PERIOD != 0
/*Init the input device handling*/
@@ -133,8 +116,12 @@ lv_obj_t * lv_obj_create(lv_obj_t * parent, const lv_obj_t * copy)
/*Create a screen if the parent is NULL*/
if(parent == NULL) {
LV_LOG_TRACE("Screen create started");
lv_disp_t * disp = lv_disp_get_last();
if(!disp) {
LV_LOG_WARN("lv_obj_create: not display created to so far. No place to assign the new screen")
}
new_obj = lv_ll_ins_head(&LV_GC_ROOT(_lv_scr_ll));
new_obj = lv_ll_ins_head(&disp->scr_ll);
lv_mem_assert(new_obj);
if(new_obj == NULL) return NULL;
@@ -357,7 +344,8 @@ lv_res_t lv_obj_del(lv_obj_t * obj)
/*Remove the object from parent's children list*/
lv_obj_t * par = lv_obj_get_parent(obj);
if(par == NULL) { /*It is a screen*/
lv_ll_rem(&LV_GC_ROOT(_lv_scr_ll), obj);
lv_disp_t * d = lv_scr_get_disp(obj);
lv_ll_rem(&d->scr_ll, obj);
} else {
lv_ll_rem(&(par->child_ll), obj);
}
@@ -415,9 +403,9 @@ void lv_obj_invalidate(const lv_obj_t * obj)
/*Invalidate the object only if it belongs to the 'LV_GC_ROOT(_lv_act_scr)'*/
lv_obj_t * obj_scr = lv_obj_get_screen(obj);
if(obj_scr == lv_scr_act() ||
obj_scr == lv_layer_top() ||
obj_scr == lv_layer_sys()) {
lv_disp_t * disp = lv_scr_get_disp(obj_scr);
if(obj_scr == lv_scr_act(disp) ||
obj_scr == lv_layer_top(disp)) {
/*Truncate recursively to the parents*/
lv_area_t area_trunc;
lv_obj_t * par = lv_obj_get_parent(obj);
@@ -448,9 +436,24 @@ void lv_obj_invalidate(const lv_obj_t * obj)
* Setter functions
*====================*/
/*--------------
* Screen set
*--------------*/
lv_disp_t * lv_scr_get_disp(lv_obj_t * scr)
{
lv_disp_t * d;
LL_READ(LV_GC_ROOT(_lv_disp_ll), d) {
lv_obj_t * s;
LL_READ(d->scr_ll, s) {
if(s == scr) return d;
}
}
LV_LOG_WARN("lv_scr_get_disp: screen not found")
return NULL;
}
/**
* Load a new screen
@@ -458,9 +461,11 @@ void lv_obj_invalidate(const lv_obj_t * obj)
*/
void lv_scr_load(lv_obj_t * scr)
{
LV_GC_ROOT(_lv_act_scr) = scr;
lv_disp_t * d = lv_scr_get_disp(scr);
lv_obj_invalidate(LV_GC_ROOT(_lv_act_scr));
d->act_scr = scr;
lv_obj_invalidate(scr);
}
/*--------------------
@@ -1006,8 +1011,11 @@ void lv_obj_refresh_style(lv_obj_t * obj)
*/
void lv_obj_report_style_mod(lv_style_t * style)
{
lv_disp_t * d = lv_disp_get_next(NULL);
while(d) {
lv_obj_t * i;
LL_READ(LV_GC_ROOT(_lv_scr_ll), i) {
LL_READ(d->scr_ll, i) {
if(i->style_p == style || style == NULL) {
lv_obj_refresh_style(i);
}
@@ -1015,6 +1023,7 @@ void lv_obj_report_style_mod(lv_style_t * style)
report_style_mod_core(style, i);
}
}
}
/*-----------------
* Attribute set
@@ -1302,28 +1311,30 @@ void lv_obj_animate(lv_obj_t * obj, lv_anim_builtin_t type, uint16_t time, uint1
* Return with a pointer to the active screen
* @return pointer to the active screen object (loaded by 'lv_scr_load()')
*/
lv_obj_t * lv_scr_act(void)
lv_obj_t * lv_scr_act(lv_disp_t * disp)
{
return LV_GC_ROOT(_lv_act_scr);
if(!disp) disp = lv_disp_get_last();
if(!disp) {
LV_LOG_WARN("lv_layer_top: no display registered to get its top layer");
return NULL;
}
return disp->act_scr;
}
/**
* Return with the top layer. (Same on every screen and it is above the normal screen layer)
* @return pointer to the top layer object (transparent screen sized lv_obj)
*/
lv_obj_t * lv_layer_top(void)
lv_obj_t * lv_layer_top(lv_disp_t * disp)
{
return LV_GC_ROOT(_lv_top_layer);
if(!disp) disp = lv_disp_get_last();
if(!disp) {
LV_LOG_WARN("lv_layer_top: no display registered to get its top layer");
return NULL;
}
/**
* Return with the system layer. (Same on every screen and it is above the all other layers)
* It is used for example by the cursor
* @return pointer to the system layer object (transparent screen sized lv_obj)
*/
lv_obj_t * lv_layer_sys(void)
{
return LV_GC_ROOT(_lv_sys_layer);
return disp->top_layer;
}
/**

14
lv_core/lv_obj.h
View File

@@ -27,6 +27,7 @@ extern "C" {
#include "../lv_misc/lv_ll.h"
#include "../lv_misc/lv_color.h"
#include "../lv_misc/lv_log.h"
#include "../lv_hal/lv_hal.h"
/*********************
* DEFINES
@@ -277,6 +278,8 @@ void lv_obj_invalidate(const lv_obj_t * obj);
* Screen set
*--------------*/
lv_disp_t * lv_scr_get_disp(lv_obj_t * scr);
/**
* Load a new screen
* @param scr pointer to a screen
@@ -560,20 +563,13 @@ void lv_obj_animate(lv_obj_t * obj, lv_anim_builtin_t type, uint16_t time, uint1
* Return with a pointer to the active screen
* @return pointer to the active screen object (loaded by 'lv_scr_load()')
*/
lv_obj_t * lv_scr_act(void);
lv_obj_t * lv_scr_act(lv_disp_t * disp);
/**
* Return with the top layer. (Same on every screen and it is above the normal screen layer)
* @return pointer to the top layer object (transparent screen sized lv_obj)
*/
lv_obj_t * lv_layer_top(void);
/**
* Return with the system layer. (Same on every screen and it is above the all other layers)
* It is used for example by the cursor
* @return pointer to the system layer object (transparent screen sized lv_obj)
*/
lv_obj_t * lv_layer_sys(void);
lv_obj_t * lv_layer_top(lv_disp_t * disp);
/**
* Return with the screen of an object

2
lv_draw/lv_draw_rbasic.c
View File

@@ -9,7 +9,7 @@
#include "lv_draw_rbasic.h"
#if USE_LV_REAL_DRAW != 0
#include "../lv_hal/lv_hal_disp.h"
#include "../lv_hal/lv_hal.h"
#include "../lv_misc/lv_font.h"
#include "lv_draw.h"

2
lv_draw/lv_draw_vbasic.c
View File

@@ -9,7 +9,7 @@
#include <stdint.h>
#include <string.h>
#include "../lv_hal/lv_hal_disp.h"
#include "../lv_hal/lv_hal.h"
#include "../lv_misc/lv_area.h"
#include "../lv_misc/lv_font.h"
#include "../lv_misc/lv_color.h"

6
lv_hal/lv_hal.h
View File

@@ -1,10 +1,10 @@
/**
* @file hal.h
* @file lv_hal.h
*
*/
#ifndef HAL_H
#define HAL_H
#ifndef LV_HAL_H
#define LV_HAL_H
#ifdef __cplusplus
extern "C" {

68
lv_hal/lv_hal_disp.c
View File

@@ -11,7 +11,7 @@
*********************/
#include <stdint.h>
#include <stddef.h>
#include "../lv_hal/lv_hal_disp.h"
#include "lv_hal.h"
#include "../lv_misc/lv_mem.h"
#include "../lv_core/lv_obj.h"
#include "../lv_misc/lv_gc.h"
@@ -57,6 +57,8 @@ void lv_disp_drv_init(lv_disp_drv_t * driver)
driver->disp_fill = NULL;
driver->disp_map = NULL;
driver->disp_flush = NULL;
driver->hor_res = LV_HOR_RES_MAX;
driver->ver_res = LV_VER_RES_MAX;
#if USE_LV_GPU
driver->mem_blend = NULL;
@@ -76,47 +78,36 @@ void lv_disp_drv_init(lv_disp_drv_t * driver)
*/
lv_disp_t * lv_disp_drv_register(lv_disp_drv_t * driver)
{
lv_disp_t * node;
node = lv_mem_alloc(sizeof(lv_disp_t));
lv_disp_t * node = lv_ll_ins_head(&LV_GC_ROOT(_lv_disp_ll));
if(!node) {
lv_mem_assert(node);
if(node == NULL) return NULL;
return NULL;
}
memcpy(&node->driver, driver, sizeof(lv_disp_drv_t));
node->next = NULL;
/* Set first display as active by default */
if(LV_GC_ROOT(_lv_disp_list) == NULL) {
LV_GC_ROOT(_lv_disp_list) = node;
active = node;
lv_obj_invalidate(lv_scr_act());
} else {
((lv_disp_t*)LV_GC_ROOT(_lv_disp_list))->next = node;
}
lv_ll_init(&node->scr_ll, sizeof(lv_obj_t));
node->act_scr = lv_obj_create(NULL, NULL); /*Create a default screen on the display*/
node->top_layer = lv_obj_create(NULL, NULL); /*Create top layer on the display*/
return node;
}
/**
* Set the active display
* @param disp pointer to a display (return value of 'lv_disp_register')
*/
void lv_disp_set_active(lv_disp_t * disp)
void * lv_disp_get_next(lv_disp_t * disp)
{
active = disp;
lv_obj_invalidate(lv_scr_act());
if(disp == NULL) return lv_ll_get_head(&LV_GC_ROOT(_lv_disp_ll));
else return lv_ll_get_next(&LV_GC_ROOT(_lv_disp_ll), disp);
}
/**
* Get a pointer to the active display
* @return pointer to the active display
*/
lv_disp_t * lv_disp_get_active(void)
lv_disp_t * lv_disp_get_last(void)
{
return active;
return lv_ll_get_head(&LV_GC_ROOT(_lv_disp_ll));
}
/**
* Get the next display.
* @param disp pointer to the current display. NULL to initialize.
@@ -124,12 +115,25 @@ lv_disp_t * lv_disp_get_active(void)
*/
lv_disp_t * lv_disp_next(lv_disp_t * disp)
{
if(disp == NULL) {
return LV_GC_ROOT(_lv_disp_list);
} else {
if(((lv_disp_t*)LV_GC_ROOT(_lv_disp_list))->next == NULL) return NULL;
else return ((lv_disp_t*)LV_GC_ROOT(_lv_disp_list))->next;
if(disp == NULL) return lv_ll_get_head(&LV_GC_ROOT(_lv_disp_ll));
else return lv_ll_get_next(&LV_GC_ROOT(_lv_disp_ll), disp);
}
lv_coord_t lv_disp_get_hor_res(lv_disp_t * disp)
{
if(disp == NULL) disp = lv_disp_get_active();
if(disp == NULL) return LV_HOR_RES_MAX;
else return disp->driver.hor_res;
}
lv_coord_t lv_disp_get_ver_res(lv_disp_t * disp)
{
if(disp == NULL) disp = lv_disp_get_active();
if(disp == NULL) return LV_VER_RES_MAX;
else return disp->driver.ver_res;
}
/**

26
lv_hal/lv_hal_disp.h
View File

@@ -1,12 +1,12 @@
/**
* @file hal_disp.h
* @file lv_hal_disp.h
*
* @description Display Driver HAL interface header file
*
*/
#ifndef HAL_DISP_H
#define HAL_DISP_H
#ifndef LV_HAL_DISP_H
#define LV_HAL_DISP_H
#ifdef __cplusplus
extern "C" {
@@ -20,7 +20,7 @@ extern "C" {
#include "lv_hal.h"
#include "../lv_misc/lv_color.h"
#include "../lv_misc/lv_area.h"
#include "../lv_core/lv_obj.h"
#include "../lv_misc/lv_ll.h"
/*********************
* DEFINES
@@ -62,14 +62,15 @@ typedef struct _disp_drv_t {
#endif
} lv_disp_drv_t;
struct _lv_obj_t;
typedef struct _disp_t {
lv_disp_drv_t driver;
lv_area_t inv_buf[32];
lv_ll_t scr_ll;
lv_obj_t * act_scr;
lv_obj_t * top_scr;
struct _lv_obj_t * act_scr;
struct _lv_obj_t * top_layer;
uint8_t orientation:2;
struct _disp_t *next;
} lv_disp_t;
/**********************
@@ -92,17 +93,8 @@ void lv_disp_drv_init(lv_disp_drv_t *driver);
*/
lv_disp_t * lv_disp_drv_register(lv_disp_drv_t *driver);
/**
* Set the active display
* @param disp pointer to a display (return value of 'lv_disp_register')
*/
void lv_disp_set_active(lv_disp_t * disp);
/**
* Get a pointer to the active display
* @return pointer to the active display
*/
lv_disp_t * lv_disp_get_active(void);
lv_disp_t * lv_disp_get_last(void);
/**
* Get the next display.

36
lv_hal/lv_hal_indev.c
View File

@@ -51,6 +51,7 @@ void lv_indev_drv_init(lv_indev_drv_t * driver)
{
driver->read = NULL;
driver->type = LV_INDEV_TYPE_NONE;
driver->disp = NULL;
driver->user_data = NULL;
}
@@ -61,30 +62,28 @@ void lv_indev_drv_init(lv_indev_drv_t * driver)
*/
lv_indev_t * lv_indev_drv_register(lv_indev_drv_t * driver)
{
lv_indev_t * node;
node = lv_mem_alloc(sizeof(lv_indev_t));
if(!node) return NULL;
if(driver->disp == NULL) driver->disp = lv_disp_get_last();
if(driver->disp == NULL) {
LV_LOG_WARN("lv_indev_drv_register: no display registered hence can't attache the indev to a display");
return NULL;
}
lv_indev_t * node = lv_ll_ins_head(&LV_GC_ROOT(_lv_indev_ll));
if(!node) {
lv_mem_assert(node);
return NULL;
}
memset(node, 0, sizeof(lv_indev_t));
memcpy(&node->driver, driver, sizeof(lv_indev_drv_t));
node->next = NULL;
node->proc.reset_query = 1;
node->cursor = NULL;
node->group = NULL;
node->btn_points = NULL;
if(LV_GC_ROOT(_lv_indev_list) == NULL) {
LV_GC_ROOT(_lv_indev_list) = node;
} else {
lv_indev_t * last = LV_GC_ROOT(_lv_indev_list);
while(last->next)
last = last->next;
last->next = node;
}
return node;
}
@@ -95,13 +94,8 @@ lv_indev_t * lv_indev_drv_register(lv_indev_drv_t * driver)
*/
lv_indev_t * lv_indev_next(lv_indev_t * indev)
{
if(indev == NULL) {
return LV_GC_ROOT(_lv_indev_list);
} else {
if(indev->next == NULL) return NULL;
else return indev->next;
}
if(indev == NULL) return lv_ll_get_head(LV_GC_ROOT(&_lv_indev_ll));
else return lv_ll_get_next(LV_GC_ROOT(&_lv_indev_ll), indev);
}
/**

16
lv_hal/lv_hal_indev.h
View File

@@ -1,12 +1,12 @@
/**
* @file hal_indev.h
* @file lv_hal_indev.h
*
* @description Input Device HAL interface layer header file
*
*/
#ifndef HAL_INDEV_H
#define HAL_INDEV_H
#ifndef LV_HAL_INDEV_H
#define LV_HAL_INDEV_H
#ifdef __cplusplus
extern "C" {
@@ -19,7 +19,7 @@ extern "C" {
#include <stdint.h>
#include "lv_hal.h"
#include "../lv_misc/lv_area.h"
#include "../lv_core/lv_obj.h"
//#include "../lv_core/lv_obj.h"
/*********************
* DEFINES
@@ -62,7 +62,9 @@ typedef struct {
typedef struct {
lv_hal_indev_type_t type; /*Input device type*/
bool (*read)(lv_indev_data_t *data); /*Function pointer to read data. Return 'true' if there is still data to be read (buffered)*/
lv_disp_t * disp;
void *user_data; /*Pointer to user defined data, passed in 'lv_indev_data_t' on read*/
} lv_indev_drv_t;
struct _lv_obj_t;
@@ -101,7 +103,7 @@ typedef struct _lv_indev_proc_t {
struct _lv_indev_t;
typedef void (*lv_indev_feedback_t)(struct _lv_indev_t *, lv_signal_t);
typedef void (*lv_indev_feedback_t)(struct _lv_indev_t *, uint8_t);
struct _lv_obj_t;
struct _lv_group_t;
@@ -112,13 +114,13 @@ typedef struct _lv_indev_t {
lv_indev_proc_t proc;
lv_indev_feedback_t feedback;
uint32_t last_activity_time;
lv_disp_t * disp;
union {
struct _lv_obj_t *cursor; /*Cursor for LV_INPUT_TYPE_POINTER*/
struct _lv_group_t *group; /*Keypad destination group*/
const lv_point_t * btn_points; /*Array points assigned to the button ()screen will be pressed here by the buttons*/
};
struct _lv_indev_t *next;
} lv_indev_t;
/**********************
@@ -143,7 +145,7 @@ lv_indev_t * lv_indev_drv_register(lv_indev_drv_t *driver);
/**
* Get the next input device.
* @param indev pointer to the current input device. NULL to initialize.
* @return the next input devise or NULL if no more. Gives the first input device when the parameter is NULL
* @return the next input devise or NULL if no more. Give the first input device when the parameter is NULL
*/
lv_indev_t * lv_indev_next(lv_indev_t * indev);

9
lv_misc/lv_gc.h
View File

@@ -31,17 +31,12 @@ extern "C" {
#define LV_GC_ROOTS(prefix) \
prefix lv_ll_t _lv_task_ll; /*Linked list to store the lv_tasks*/ \
prefix lv_ll_t _lv_scr_ll; /*Linked list of screens*/ \
prefix lv_ll_t _lv_disp_ll; /*Linked list of screens*/ \
prefix lv_ll_t _lv_indev_ll; /*Linked list of screens*/ \
prefix lv_ll_t _lv_drv_ll;\
prefix lv_ll_t _lv_file_ll;\
prefix lv_ll_t _lv_anim_ll;\
prefix void * _lv_def_scr;\
prefix void * _lv_act_scr;\
prefix void * _lv_top_layer;\
prefix void * _lv_sys_layer;\
prefix void * _lv_task_act;\
prefix void * _lv_indev_list;\
prefix void * _lv_disp_list;\
#define LV_NO_PREFIX