50bd6e8bf6
* SdCard HAL refactored (#135) - Refactor SdCard HAL - introduce Lockable * Screenshot and FatFS improvements (#136) - Fix screenshots on ESP32 - Improve Screenshot service - Convert Screenshot app to class-based instead of structs - Screenshot app now automatically updates when task is finished - Enable FatFS long filename support * Re-use common log messages (#138) For consistency and binary size reduction * Toolbar spinner should get margin to the right * More TactilityC features (#139) * Rewrote Loader - Simplified Loader by removing custom threa - Created DispatcherThread - Move auto-starting apps to Boot app - Fixed Dispatcher bug where it could get stuck not processing new messages * Hide AP settings if the AP is not saved * Missing from previous commit * Replace LV_EVENT_CLICKED with LV_EVENT_SHORT_CLICKED * Refactored files app and created InputDialog (#140) - Changed Files app so that it has a View and State - Files app now allows for long-pressing on files to perform actions - Files app now has rename and delete actions - Created InputDialog app - Improved AlertDialog app layout
70 lines
2.9 KiB
C
70 lines
2.9 KiB
C
#include "lv_screenshot.h"
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#include "save_png.h"
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#include "save_bmp.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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static void data_pre_processing(lv_draw_buf_t* snapshot, uint16_t bpp, lv_100ask_screenshot_sv_t screenshot_sv);
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bool lv_screenshot_create(lv_obj_t* obj, lv_100ask_screenshot_sv_t screenshot_sv, const char* filename) {
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lv_draw_buf_t* snapshot = lv_snapshot_take(obj, LV_COLOR_FORMAT_RGB888);
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if (snapshot) {
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bool success = false;
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if (screenshot_sv == LV_100ASK_SCREENSHOT_SV_PNG) {
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data_pre_processing(snapshot, 24, screenshot_sv);
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success = lv_screenshot_save_png_file(snapshot->data, snapshot->header.w, snapshot->header.h, 24, filename);
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} else if (screenshot_sv == LV_100ASK_SCREENSHOT_SV_BMP) {
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data_pre_processing(snapshot, 24, screenshot_sv);
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success = lve_screenshot_save_bmp_file(snapshot->data, snapshot->header.w, snapshot->header.h, 24, filename);
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}
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lv_draw_buf_destroy(snapshot);
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return success;
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}
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return false;
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}
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static void data_pre_processing(lv_draw_buf_t* snapshot, uint16_t bpp, lv_100ask_screenshot_sv_t screenshot_sv) {
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if (bpp == 16) {
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uint16_t rgb565_data = 0;
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uint32_t count = 0;
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for (int w = 0; w < snapshot->header.w; w++) {
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for (int h = 0; h < snapshot->header.h; h++) {
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rgb565_data = (uint16_t)((*(uint8_t*)(snapshot->data + count + 1) << 8) | *(uint8_t*)(snapshot->data + count));
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if (screenshot_sv == LV_100ASK_SCREENSHOT_SV_PNG) {
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*(uint8_t*)(snapshot->data + count) = (uint8_t)(((rgb565_data) >> 11) << 3);
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*(uint8_t*)(snapshot->data + count + 1) = (uint8_t)(((rgb565_data) >> 5) << 2);
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*(uint8_t*)(snapshot->data + count + 2) = (uint8_t)(((rgb565_data) >> 0) << 3);
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} else if (screenshot_sv == LV_100ASK_SCREENSHOT_SV_BMP) {
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*(uint8_t*)(snapshot->data + count) = (uint8_t)(((rgb565_data) >> 0) << 3);
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*(uint8_t*)(snapshot->data + count + 1) = (uint8_t)(((rgb565_data) >> 5) << 2);
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*(uint8_t*)(snapshot->data + count + 2) = (uint8_t)(((rgb565_data) >> 11) << 3);
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}
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count += 3;
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}
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}
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} else if ((screenshot_sv == LV_100ASK_SCREENSHOT_SV_PNG) && (bpp == 32 || bpp == 24)) {
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uint8_t tmp_data = 0;
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uint32_t count = 0;
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uint32_t pixel_byte_gap = bpp / 8;
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for (int w = 0; w < snapshot->header.w; w++) {
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for (int h = 0; h < snapshot->header.h; h++) {
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tmp_data = *(snapshot->data + count);
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*(uint8_t*)(snapshot->data + count) = *(snapshot->data + count + 2);
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*(uint8_t*)(snapshot->data + count + 2) = tmp_data;
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count += pixel_byte_gap;
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}
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}
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}
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}
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#ifdef __cplusplus
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}
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#endif
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