ref: fc5424cb72e477c5f1bbfaeddb5c50b851a965ae
src/displayapp/LittleVgl.cpp
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#include "displayapp/LittleVgl.h" #include "displayapp/InfiniTimeTheme.h" #include <FreeRTOS.h> #include <task.h> #include "drivers/St7789.h" #include "littlefs/lfs.h" #include "components/fs/FS.h" using namespace Pinetime::Components; namespace { void InitTheme() { lv_theme_t* theme = lv_pinetime_theme_init(); lv_theme_set_act(theme); } lv_fs_res_t lvglOpen(lv_fs_drv_t* drv, void* file_p, const char* path, lv_fs_mode_t /*mode*/) { lfs_file_t* file = static_cast<lfs_file_t*>(file_p); Pinetime::Controllers::FS* filesys = static_cast<Pinetime::Controllers::FS*>(drv->user_data); int res = filesys->FileOpen(file, path, LFS_O_RDONLY); if (res == 0) { if (file->type == 0) { return LV_FS_RES_FS_ERR; } else { return LV_FS_RES_OK; } } return LV_FS_RES_NOT_EX; } lv_fs_res_t lvglClose(lv_fs_drv_t* drv, void* file_p) { Pinetime::Controllers::FS* filesys = static_cast<Pinetime::Controllers::FS*>(drv->user_data); lfs_file_t* file = static_cast<lfs_file_t*>(file_p); filesys->FileClose(file); return LV_FS_RES_OK; } lv_fs_res_t lvglRead(lv_fs_drv_t* drv, void* file_p, void* buf, uint32_t btr, uint32_t* br) { Pinetime::Controllers::FS* filesys = static_cast<Pinetime::Controllers::FS*>(drv->user_data); lfs_file_t* file = static_cast<lfs_file_t*>(file_p); filesys->FileRead(file, static_cast<uint8_t*>(buf), btr); *br = btr; return LV_FS_RES_OK; } lv_fs_res_t lvglSeek(lv_fs_drv_t* drv, void* file_p, uint32_t pos) { Pinetime::Controllers::FS* filesys = static_cast<Pinetime::Controllers::FS*>(drv->user_data); lfs_file_t* file = static_cast<lfs_file_t*>(file_p); filesys->FileSeek(file, pos); return LV_FS_RES_OK; } } static void disp_flush(lv_disp_drv_t* disp_drv, const lv_area_t* area, lv_color_t* color_p) { auto* lvgl = static_cast<LittleVgl*>(disp_drv->user_data); lvgl->FlushDisplay(area, color_p); } static void rounder(lv_disp_drv_t* disp_drv, lv_area_t* area) { auto* lvgl = static_cast<LittleVgl*>(disp_drv->user_data); if (lvgl->GetFullRefresh()) { area->x1 = 0; area->x2 = LV_HOR_RES - 1; area->y1 = 0; area->y2 = LV_VER_RES - 1; } } bool touchpad_read(lv_indev_drv_t* indev_drv, lv_indev_data_t* data) { auto* lvgl = static_cast<LittleVgl*>(indev_drv->user_data); return lvgl->GetTouchPadInfo(data); } LittleVgl::LittleVgl(Pinetime::Drivers::St7789& lcd, Pinetime::Controllers::FS& filesystem) : lcd {lcd}, filesystem {filesystem} { } void LittleVgl::Init() { lv_init(); InitTheme(); InitDisplay(); InitTouchpad(); InitFileSystem(); } void LittleVgl::InitDisplay() { lv_disp_buf_init(&disp_buf_2, buf2_1, buf2_2, LV_HOR_RES_MAX * 4); /*Initialize the display buffer*/ lv_disp_drv_init(&disp_drv); /*Basic initialization*/ /*Set up the functions to access to your display*/ /*Set the resolution of the display*/ disp_drv.hor_res = 240; disp_drv.ver_res = 240; /*Used to copy the buffer's content to the display*/ disp_drv.flush_cb = disp_flush; /*Set a display buffer*/ disp_drv.buffer = &disp_buf_2; disp_drv.user_data = this; disp_drv.rounder_cb = rounder; /*Finally register the driver*/ lv_disp_drv_register(&disp_drv); } void LittleVgl::InitTouchpad() { lv_indev_drv_t indev_drv; lv_indev_drv_init(&indev_drv); indev_drv.type = LV_INDEV_TYPE_POINTER; indev_drv.read_cb = touchpad_read; indev_drv.user_data = this; lv_indev_drv_register(&indev_drv); } void LittleVgl::InitFileSystem() { lv_fs_drv_t fs_drv; lv_fs_drv_init(&fs_drv); fs_drv.file_size = sizeof(lfs_file_t); fs_drv.letter = 'F'; fs_drv.open_cb = lvglOpen; fs_drv.close_cb = lvglClose; fs_drv.read_cb = lvglRead; fs_drv.seek_cb = lvglSeek; fs_drv.user_data = &filesystem; lv_fs_drv_register(&fs_drv); } void LittleVgl::SetFullRefresh(FullRefreshDirections direction) { if (scrollDirection == FullRefreshDirections::None) { scrollDirection = direction; if (scrollDirection == FullRefreshDirections::Down) { lv_disp_set_direction(lv_disp_get_default(), 1); } else if (scrollDirection == FullRefreshDirections::Right) { lv_disp_set_direction(lv_disp_get_default(), 2); } else if (scrollDirection == FullRefreshDirections::Left) { lv_disp_set_direction(lv_disp_get_default(), 3); } else if (scrollDirection == FullRefreshDirections::RightAnim) { lv_disp_set_direction(lv_disp_get_default(), 5); } else if (scrollDirection == FullRefreshDirections::LeftAnim) { lv_disp_set_direction(lv_disp_get_default(), 4); } } fullRefresh = true; } void LittleVgl::FlushDisplay(const lv_area_t* area, lv_color_t* color_p) { uint16_t y1, y2, width, height = 0; ulTaskNotifyTake(pdTRUE, 200); // Notification is still needed (even if there is a mutex on SPI) because of the DataCommand pin // which cannot be set/clear during a transfer. if ((scrollDirection == LittleVgl::FullRefreshDirections::Down) && (area->y2 == visibleNbLines - 1)) { writeOffset = ((writeOffset + totalNbLines) - visibleNbLines) % totalNbLines; } else if ((scrollDirection == FullRefreshDirections::Up) && (area->y1 == 0)) { writeOffset = (writeOffset + visibleNbLines) % totalNbLines; } y1 = (area->y1 + writeOffset) % totalNbLines; y2 = (area->y2 + writeOffset) % totalNbLines; width = (area->x2 - area->x1) + 1; height = (area->y2 - area->y1) + 1; if (scrollDirection == LittleVgl::FullRefreshDirections::Down) { if (area->y2 < visibleNbLines - 1) { uint16_t toScroll = 0; if (area->y1 == 0) { toScroll = height * 2; scrollDirection = FullRefreshDirections::None; lv_disp_set_direction(lv_disp_get_default(), 0); } else { toScroll = height; } if (scrollOffset >= toScroll) scrollOffset -= toScroll; else { toScroll -= scrollOffset; scrollOffset = (totalNbLines) -toScroll; } lcd.VerticalScrollStartAddress(scrollOffset); } } else if (scrollDirection == FullRefreshDirections::Up) { if (area->y1 > 0) { if (area->y2 == visibleNbLines - 1) { scrollOffset += (height * 2); scrollDirection = FullRefreshDirections::None; lv_disp_set_direction(lv_disp_get_default(), 0); } else { scrollOffset += height; } scrollOffset = scrollOffset % totalNbLines; lcd.VerticalScrollStartAddress(scrollOffset); } } else if (scrollDirection == FullRefreshDirections::Left or scrollDirection == FullRefreshDirections::LeftAnim) { if (area->x2 == visibleNbLines - 1) { scrollDirection = FullRefreshDirections::None; lv_disp_set_direction(lv_disp_get_default(), 0); } } else if (scrollDirection == FullRefreshDirections::Right or scrollDirection == FullRefreshDirections::RightAnim) { if (area->x1 == 0) { scrollDirection = FullRefreshDirections::None; lv_disp_set_direction(lv_disp_get_default(), 0); } } if (y2 < y1) { height = totalNbLines - y1; if (height > 0) { lcd.DrawBuffer(area->x1, y1, width, height, reinterpret_cast<const uint8_t*>(color_p), width * height * 2); ulTaskNotifyTake(pdTRUE, 100); } uint16_t pixOffset = width * height; height = y2 + 1; lcd.DrawBuffer(area->x1, 0, width, height, reinterpret_cast<const uint8_t*>(color_p + pixOffset), width * height * 2); } else { lcd.DrawBuffer(area->x1, y1, width, height, reinterpret_cast<const uint8_t*>(color_p), width * height * 2); } // IMPORTANT!!! // Inform the graphics library that you are ready with the flushing lv_disp_flush_ready(&disp_drv); } void LittleVgl::SetNewTouchPoint(int16_t x, int16_t y, bool contact) { if (contact) { if (!isCancelled) { touchPoint = {x, y}; tapped = true; } } else { if (isCancelled) { touchPoint = {-1, -1}; tapped = false; isCancelled = false; } else { touchPoint = {x, y}; tapped = false; } } } void LittleVgl::CancelTap() { if (tapped) { isCancelled = true; touchPoint = {-1, -1}; } } bool LittleVgl::GetTouchPadInfo(lv_indev_data_t* ptr) { ptr->point.x = touchPoint.x; ptr->point.y = touchPoint.y; if (tapped) { ptr->state = LV_INDEV_STATE_PR; } else { ptr->state = LV_INDEV_STATE_REL; } return false; } |