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fix(dev): drm driver awaits vsync before drm_wait_vsync (#4659)

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This commit is contained in:
Niklas Fiekas
2023-10-16 10:48:51 +02:00
committed by GitHub
parent 5ede301ef4
commit 9ea46f2f3e
1 changed files with 6 additions and 5 deletions
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src/dev/display/drm/lv_linux_drm.c
+6 -5
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@@ -352,7 +352,7 @@ static int drm_dmabuf_set_plane(drm_dev_t * drm_dev, drm_buffer_t * buf)
{
int ret;
static int first = 1;
uint32_t flags = DRM_MODE_PAGE_FLIP_EVENT;
uint32_t flags = DRM_MODE_PAGE_FLIP_EVENT | DRM_MODE_ATOMIC_NONBLOCK;
drm_dev->req = drmModeAtomicAlloc();
@@ -819,6 +819,10 @@ static void drm_flush(lv_display_t * disp, const lv_area_t * area, uint8_t * px_
LV_LOG_TRACE("x %d:%d y %d:%d w %d h %d", area->x1, area->x2, area->y1, area->y2, w, h);
/*Wait for last requested buffer swap to complete*/
if(drm_dev->req)
drm_wait_vsync(drm_dev);
/*Prepare background buffer for partial update*/
if(drm_dev->inactive_drm_buf_dirty && (area->x1 != 0 || area->y1 != 0 || w != drm_dev->width || h != drm_dev->height))
lv_memcpy(fbuf->map, drm_dev->drm_bufs[drm_dev->active_drm_buf_idx].map, fbuf->size);
@@ -831,11 +835,8 @@ static void drm_flush(lv_display_t * disp, const lv_area_t * area, uint8_t * px_
w * (LV_COLOR_DEPTH / 8));
}
/*Swap buffers*/
/*Request buffer swap*/
if(lv_display_flush_is_last(disp)) {
if(drm_dev->req)
drm_wait_vsync(drm_dev);
if(drm_dmabuf_set_plane(drm_dev, fbuf)) {
LV_LOG_ERROR("Flush fail");
return;