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feat(esp_lcd): rgb add callback when bounce buffer finish

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Liu Zhongwei
2023-08-17 16:00:52 +08:00
committed by morris
parent 9080a7ac7c
commit f96a9ad84c
2 changed files with 26 additions and 3 deletions
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14
components/esp_lcd/src/esp_lcd_panel_rgb.c
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@@ -108,6 +108,7 @@ struct esp_rgb_panel_t {
gdma_channel_handle_t dma_chan; // DMA channel handle
esp_lcd_rgb_panel_vsync_cb_t on_vsync; // VSYNC event callback
esp_lcd_rgb_panel_bounce_buf_fill_cb_t on_bounce_empty; // callback used to fill a bounce buffer rather than copying from the frame buffer
esp_lcd_rgb_panel_bounce_buf_finish_cb_t on_bounce_frame_finish; // callback used to notify when the bounce buffer finish copying the entire frame
void *user_ctx; // Reserved user's data of callback functions
int x_gap; // Extra gap in x coordinate, it's used when calculate the flush window
int y_gap; // Extra gap in y coordinate, it's used when calculate the flush window
@@ -359,12 +360,16 @@ esp_err_t esp_lcd_rgb_panel_register_event_callbacks(esp_lcd_panel_handle_t pane
if (callbacks->on_bounce_empty) {
ESP_RETURN_ON_FALSE(esp_ptr_in_iram(callbacks->on_bounce_empty), ESP_ERR_INVALID_ARG, TAG, "on_bounce_empty callback not in IRAM");
}
if (callbacks->on_bounce_frame_finish) {
ESP_RETURN_ON_FALSE(esp_ptr_in_iram(callbacks->on_bounce_frame_finish), ESP_ERR_INVALID_ARG, TAG, "on_bounce_frame_finish callback not in IRAM");
}
if (user_ctx) {
ESP_RETURN_ON_FALSE(esp_ptr_internal(user_ctx), ESP_ERR_INVALID_ARG, TAG, "user context not in internal RAM");
}
#endif // CONFIG_LCD_RGB_ISR_IRAM_SAFE
rgb_panel->on_vsync = callbacks->on_vsync;
rgb_panel->on_bounce_empty = callbacks->on_bounce_empty;
rgb_panel->on_bounce_frame_finish = callbacks->on_bounce_frame_finish;
rgb_panel->user_ctx = user_ctx;
return ESP_OK;
}
@@ -878,7 +883,9 @@ static IRAM_ATTR bool lcd_rgb_panel_fill_bounce_buffer(esp_rgb_panel_t *panel, u
if (panel->num_fbs == 0) {
if (panel->on_bounce_empty) {
// We don't have a frame buffer here; we need to call a callback to refill the bounce buffer
need_yield = panel->on_bounce_empty(&panel->base, buffer, panel->bounce_pos_px, panel->bb_size, panel->user_ctx);
if (panel->on_bounce_empty(&panel->base, buffer, panel->bounce_pos_px, panel->bb_size, panel->user_ctx)) {
need_yield = true;
}
}
} else {
// We do have frame buffer; copy from there.
@@ -895,6 +902,11 @@ static IRAM_ATTR bool lcd_rgb_panel_fill_bounce_buffer(esp_rgb_panel_t *panel, u
if (panel->bounce_pos_px >= panel->fb_size / bytes_per_pixel) {
panel->bounce_pos_px = 0;
panel->bb_fb_index = panel->cur_fb_index;
if (panel->on_bounce_frame_finish) {
if (panel->on_bounce_frame_finish(&panel->base, NULL, panel->user_ctx)) {
need_yield = true;
}
}
}
if (panel->num_fbs > 0) {
// Preload the next bit of buffer from psram