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Add log in true double buffering mode with

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This commit is contained in:
Gabor Kiss-Vamosi 2020-06-05 10:43:26 +02:00
parent 673c493694
commit c3f051ac52
3 changed files with 49 additions and 39 deletions
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1
CHANGELOG.md
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@ -11,6 +11,7 @@
- Fix list button focus in material theme
- Fix crash when the a text area is cleared with the backspace of a keyboard
- Add versionnumber to `lv_conf_template.h`
- Add log in true double buffering mode with `set_px_cb`
## v7.0.1 (01.06.2020)

82
src/lv_core/lv_refr.c
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@ -202,55 +202,59 @@ void _lv_disp_refr_task(lv_task_t * task)
if(disp_refr->inv_p != 0) {
/* In true double buffered mode copy the refreshed areas to the new VDB to keep it up to date.
* With set_px_cb we don't know anything about the buffer (even it's size) so skip copying.*/
if(lv_disp_is_true_double_buf(disp_refr) && disp_refr->driver.set_px_cb == NULL) {
lv_disp_buf_t * vdb = lv_disp_get_buf(disp_refr);
if(lv_disp_is_true_double_buf(disp_refr)) {
if(disp_refr->driver.set_px_cb) {
LV_LOG_WARN("Can't handle 2 screen sized buffers with set_px_cb. Display is not refreshed.");
} else {
lv_disp_buf_t * vdb = lv_disp_get_buf(disp_refr);
/*Flush the content of the VDB*/
lv_refr_vdb_flush();
/*Flush the content of the VDB*/
lv_refr_vdb_flush();
/* With true double buffering the flushing should be only the address change of the
* current frame buffer. Wait until the address change is ready and copy the changed
* content to the other frame buffer (new active VDB) to keep the buffers synchronized*/
while(vdb->flushing);
/* With true double buffering the flushing should be only the address change of the
* current frame buffer. Wait until the address change is ready and copy the changed
* content to the other frame buffer (new active VDB) to keep the buffers synchronized*/
while(vdb->flushing);
lv_color_t * copy_buf = NULL;
#if LV_USE_GPU_STM32_DMA2D
LV_UNUSED(copy_buf);
#else
copy_buf = _lv_mem_buf_get(disp_refr->driver.hor_res * sizeof(lv_color_t));
#endif
lv_color_t * copy_buf = NULL;
#if LV_USE_GPU_STM32_DMA2D
LV_UNUSED(copy_buf);
#else
copy_buf = _lv_mem_buf_get(disp_refr->driver.hor_res * sizeof(lv_color_t));
#endif
uint8_t * buf_act = (uint8_t *)vdb->buf_act;
uint8_t * buf_ina = (uint8_t *)vdb->buf_act == vdb->buf1 ? vdb->buf2 : vdb->buf1;
uint8_t * buf_act = (uint8_t *)vdb->buf_act;
uint8_t * buf_ina = (uint8_t *)vdb->buf_act == vdb->buf1 ? vdb->buf2 : vdb->buf1;
lv_coord_t hres = lv_disp_get_hor_res(disp_refr);
uint16_t a;
for(a = 0; a < disp_refr->inv_p; a++) {
if(disp_refr->inv_area_joined[a] == 0) {
uint32_t start_offs =
(hres * disp_refr->inv_areas[a].y1 + disp_refr->inv_areas[a].x1) * sizeof(lv_color_t);
#if LV_USE_GPU_STM32_DMA2D
lv_gpu_stm32_dma2d_copy((lv_color_t *)(buf_act + start_offs), disp_refr->driver.hor_res,
(lv_color_t *)(buf_ina + start_offs), disp_refr->driver.hor_res,
lv_area_get_width(&disp_refr->inv_areas[a]),
lv_area_get_height(&disp_refr->inv_areas[a]));
#else
lv_coord_t hres = lv_disp_get_hor_res(disp_refr);
uint16_t a;
for(a = 0; a < disp_refr->inv_p; a++) {
if(disp_refr->inv_area_joined[a] == 0) {
uint32_t start_offs =
(hres * disp_refr->inv_areas[a].y1 + disp_refr->inv_areas[a].x1) * sizeof(lv_color_t);
#if LV_USE_GPU_STM32_DMA2D
lv_gpu_stm32_dma2d_copy((lv_color_t *)(buf_act + start_offs), disp_refr->driver.hor_res,
(lv_color_t *)(buf_ina + start_offs), disp_refr->driver.hor_res,
lv_area_get_width(&disp_refr->inv_areas[a]),
lv_area_get_height(&disp_refr->inv_areas[a]));
#else
lv_coord_t y;
uint32_t line_length = lv_area_get_width(&disp_refr->inv_areas[a]) * sizeof(lv_color_t);
lv_coord_t y;
uint32_t line_length = lv_area_get_width(&disp_refr->inv_areas[a]) * sizeof(lv_color_t);
for(y = disp_refr->inv_areas[a].y1; y <= disp_refr->inv_areas[a].y2; y++) {
/* The frame buffer is probably in an external RAM where sequential access is much faster.
* So first copy a line into a buffer and write it back the ext. RAM */
_lv_memcpy(copy_buf, buf_ina + start_offs, line_length);
_lv_memcpy(buf_act + start_offs, copy_buf, line_length);
start_offs += hres * sizeof(lv_color_t);
for(y = disp_refr->inv_areas[a].y1; y <= disp_refr->inv_areas[a].y2; y++) {
/* The frame buffer is probably in an external RAM where sequential access is much faster.
* So first copy a line into a buffer and write it back the ext. RAM */
_lv_memcpy(copy_buf, buf_ina + start_offs, line_length);
_lv_memcpy(buf_act + start_offs, copy_buf, line_length);
start_offs += hres * sizeof(lv_color_t);
}
#endif
}
#endif
}
}
if(copy_buf) _lv_mem_buf_release(copy_buf);
if(copy_buf) _lv_mem_buf_release(copy_buf);
}
} /*End of true double buffer handling*/
/*Clean up*/

5
src/lv_hal/lv_hal_disp.c
View File

@ -158,6 +158,11 @@ lv_disp_t * lv_disp_drv_register(lv_disp_drv_t * driver)
lv_task_ready(disp->refr_task); /*Be sure the screen will be refreshed immediately on start up*/
/*Can't handle this case later so add an error*/
if(lv_disp_is_true_double_buf(disp) && disp->driver.set_px_cb) {
LV_LOG_ERROR("Can't handle 2 screen sized buffers with set_px_cb. Display will not be refreshed.");
}
return disp;
}