Skip to content

Arduino H7 Video + LVGL 9.x: fix flush buffer size #1052

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Open
wants to merge 1 commit into
base: main
Choose a base branch
from
Open

Arduino H7 Video + LVGL 9.x: fix flush buffer size #1052

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
13 changes: 12 additions & 1 deletion libraries/Arduino_H7_Video/src/Arduino_H7_Video.cpp
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -251,7 +251,11 @@ void lvgl_displayFlushing(lv_display_t * disp, const lv_area_t * area, unsigned
lv_display_rotation_t rotation = lv_display_get_rotation(disp);
lv_area_t rotated_area;
if (rotation != LV_DISPLAY_ROTATION_0) {
rotated_buf = (uint8_t*)realloc(rotated_buf, w * h * 4);
uint8_t* new_buf = (uint8_t*)realloc(rotated_buf, w * h * 2);
if (new_buf == NULL) {
return; // Insufficient memory error
}
rotated_buf = new_buf;
lv_color_format_t cf = lv_display_get_color_format(disp);
#if (LVGL_VERSION_MINOR < 2)
rotation = LV_DISPLAY_ROTATION_90; // bugfix: force 90 degree rotation for lvgl 9.1 end earlier
Expand All @@ -277,6 +281,13 @@ void lvgl_displayFlushing(lv_display_t * disp, const lv_area_t * area, unsigned
uint32_t offsetPos = (area_in_use->x1 + (dsi_getDisplayXSize() * area_in_use->y1)) * sizeof(uint16_t);

dsi_lcdDrawImage((void *) px_map, (void *)(dsi_getActiveFrameBuffer() + offsetPos), w, h, DMA2D_INPUT_RGB565);

// free the rotated buffer if it was allocated
if (rotation != LV_DISPLAY_ROTATION_0) {
free(rotated_buf);
rotated_buf = nullptr;
}

lv_display_flush_ready(disp); /* Indicate you are ready with the flushing*/
}
#else
Expand Down