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fix(x11): avoid transient artifacts while resizing window (#9918)

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2026-04-13 09:48:14 +02:00
committed by GitHub
parent 712156a1fa
commit 4656762ae3
1 changed files with 15 additions and 9 deletions
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src/drivers/x11/lv_x11_display.c
+15 -9
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@@ -17,6 +17,7 @@
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include "../../core/lv_obj_pos.h"
#include "../../core/lv_refr.h"
/*********************
* DEFINES
@@ -103,6 +104,14 @@ static inline lv_color32_t get_px(color_t p)
#error ("Unsupported LV_COLOR_DEPTH")
#endif
static void x11_reset_flush_area(x11_disp_data_t * xd)
{
xd->flush_area.x1 = 0xFFFF;
xd->flush_area.x2 = 0;
xd->flush_area.y1 = 0xFFFF;
xd->flush_area.y2 = 0;
}
/**
* Flush the content of the internal buffer the specific area on the display.
* @param[in] disp the created X11 display object from @lv_x11_window_create
@@ -115,12 +124,6 @@ static void x11_flush_cb(lv_display_t * disp, const lv_area_t * area, uint8_t *
x11_disp_data_t * xd = lv_display_get_driver_data(disp);
LV_ASSERT_NULL(xd);
static const lv_area_t inv_area = { .x1 = 0xFFFF,
.x2 = 0,
.y1 = 0xFFFF,
.y2 = 0
};
/* build display update area until lv_display_flush_is_last */
xd->flush_area.x1 = MIN(xd->flush_area.x1, area->x1);
xd->flush_area.x2 = MAX(xd->flush_area.x2, area->x2);
@@ -153,7 +156,7 @@ static void x11_flush_cb(lv_display_t * disp, const lv_area_t * area, uint8_t *
xd->flush_area.y1, upd_w, upd_h);
/* invalidate collected area */
xd->flush_area = inv_area;
x11_reset_flush_area(xd);
}
/* Inform the graphics library that you are ready with the flushing */
lv_display_flush_ready(disp);
@@ -183,9 +186,10 @@ static void x11_resolution_evt_cb(lv_event_t * e)
/* re-create cache image with new size */
XDestroyImage(xd->ximage);
size_t sz_buffers = hor_res * ver_res * sizeof(lv_color32_t);
xd->xdata = malloc(sz_buffers); /* use clib method here, x11 memory not part of device footprint */
xd->xdata = calloc(1, sz_buffers); /* use clib method here, x11 memory not part of device footprint */
xd->ximage = XCreateImage(xd->hdr.display, xd->visual, xd->dplanes, ZPixmap, 0, xd->xdata,
hor_res, ver_res, lv_color_format_get_bpp(LV_COLOR_FORMAT_ARGB8888), 0);
x11_reset_flush_area(xd);
}
/**
@@ -266,6 +270,7 @@ static void x11_event_handler(lv_timer_t * t)
if(event.xconfigure.width != lv_display_get_horizontal_resolution(disp)
|| event.xconfigure.height != lv_display_get_vertical_resolution(disp)) {
lv_display_set_resolution(disp, event.xconfigure.width, event.xconfigure.height);
lv_refr_now(disp);
}
break;
case ClientMessage:
@@ -341,9 +346,10 @@ static void x11_window_create(lv_display_t * disp, char const * title)
/* create cache XImage */
size_t sz_buffers = hor_res * ver_res * sizeof(lv_color32_t);
xd->dplanes = XDisplayPlanes(xd->hdr.display, screen);
xd->xdata = malloc(sz_buffers); /* use clib method here, x11 memory not part of device footprint */
xd->xdata = calloc(1, sz_buffers); /* use clib method here, x11 memory not part of device footprint */
xd->ximage = XCreateImage(xd->hdr.display, xd->visual, xd->dplanes, ZPixmap, 0, xd->xdata,
hor_res, ver_res, lv_color_format_get_bpp(LV_COLOR_FORMAT_ARGB8888), 0);
x11_reset_flush_area(xd);
/* finally bring window on top of the other windows */
XMapRaised(xd->hdr.display, xd->window);