core: add indeterminate flag to display_loader

core/embed/bootloader/bootui.c

@@ -236,7 +236,7 @@ void ui_screen_install_confirm_newvendor(const vendor_header *const vhdr,
 
 void ui_screen_install(void) {
   display_bar(0, 0, DISPLAY_RESX, DISPLAY_RESY, COLOR_WHITE);
-  display_loader(0, -20, COLOR_BL_PROCESS, COLOR_WHITE, toi_icon_install,
+  display_loader(0, false, -20, COLOR_BL_PROCESS, COLOR_WHITE, toi_icon_install,
                  sizeof(toi_icon_install), COLOR_BLACK);
   display_text_center(DISPLAY_RESX / 2, DISPLAY_RESY - 24,
                       "Installing firmware", -1, FONT_NORMAL, COLOR_BLACK,
@@ -244,13 +244,13 @@ void ui_screen_install(void) {
 }
 
 void ui_screen_install_progress_erase(int pos, int len) {
-  display_loader(250 * pos / len, -20, COLOR_BL_PROCESS, COLOR_WHITE,
+  display_loader(250 * pos / len, false, -20, COLOR_BL_PROCESS, COLOR_WHITE,
                  toi_icon_install, sizeof(toi_icon_install), COLOR_BLACK);
 }
 
 void ui_screen_install_progress_upload(int pos) {
-  display_loader(pos, -20, COLOR_BL_PROCESS, COLOR_WHITE, toi_icon_install,
+  display_loader(pos, false, -20, COLOR_BL_PROCESS, COLOR_WHITE,
-                 sizeof(toi_icon_install), COLOR_BLACK);
+                 toi_icon_install, sizeof(toi_icon_install), COLOR_BLACK);
 }
 
 // wipe UI
@@ -274,14 +274,14 @@ void ui_screen_wipe_confirm(void) {
 
 void ui_screen_wipe(void) {
   display_bar(0, 0, DISPLAY_RESX, DISPLAY_RESY, COLOR_WHITE);
-  display_loader(0, -20, COLOR_BL_PROCESS, COLOR_WHITE, toi_icon_wipe,
+  display_loader(0, false, -20, COLOR_BL_PROCESS, COLOR_WHITE, toi_icon_wipe,
                  sizeof(toi_icon_wipe), COLOR_BLACK);
   display_text_center(DISPLAY_RESX / 2, DISPLAY_RESY - 24, "Wiping device", -1,
                       FONT_NORMAL, COLOR_BLACK, COLOR_WHITE);
 }
 
 void ui_screen_wipe_progress(int pos, int len) {
-  display_loader(1000 * pos / len, -20, COLOR_BL_PROCESS, COLOR_WHITE,
+  display_loader(1000 * pos / len, false, -20, COLOR_BL_PROCESS, COLOR_WHITE,
                  toi_icon_wipe, sizeof(toi_icon_wipe), COLOR_BLACK);
 }
 
@@ -300,7 +300,7 @@ void ui_screen_done(int restart_seconds, secbool full_redraw) {
   if (sectrue == full_redraw) {
     display_bar(0, 0, DISPLAY_RESX, DISPLAY_RESY, COLOR_WHITE);
   }
-  display_loader(1000, -20, COLOR_BL_DONE, COLOR_WHITE, toi_icon_done,
+  display_loader(1000, false, -20, COLOR_BL_DONE, COLOR_WHITE, toi_icon_done,
                  sizeof(toi_icon_done), COLOR_BLACK);
   if (secfalse == full_redraw) {
     display_bar(0, DISPLAY_RESY - 24 - 18, 240, 23, COLOR_WHITE);
@@ -313,7 +313,7 @@ void ui_screen_done(int restart_seconds, secbool full_redraw) {
 
 void ui_screen_fail(void) {
   display_bar(0, 0, DISPLAY_RESX, DISPLAY_RESY, COLOR_WHITE);
-  display_loader(1000, -20, COLOR_BL_FAIL, COLOR_WHITE, toi_icon_fail,
+  display_loader(1000, false, -20, COLOR_BL_FAIL, COLOR_WHITE, toi_icon_fail,
                  sizeof(toi_icon_fail), COLOR_BLACK);
   display_text_center(DISPLAY_RESX / 2, DISPLAY_RESY - 24,
                       "Failed! Please, reconnect.", -1, FONT_NORMAL,

core/embed/extmod/modtrezorui/display.c

@@ -316,9 +316,9 @@ static void inflate_callback_loader(uint8_t byte, uint32_t pos,
 
 #endif
 
-void display_loader(uint16_t progress, int yoffset, uint16_t fgcolor,
+void display_loader(uint16_t progress, bool indeterminate, int yoffset,
-                    uint16_t bgcolor, const uint8_t *icon, uint32_t iconlen,
+                    uint16_t fgcolor, uint16_t bgcolor, const uint8_t *icon,
-                    uint16_t iconfgcolor) {
+                    uint32_t iconlen, uint16_t iconfgcolor) {
 #if TREZOR_MODEL == T
   uint16_t colortable[16], iconcolortable[16];
   set_color_table(colortable, fgcolor, bgcolor);
@@ -362,6 +362,7 @@ void display_loader(uint16_t progress, int yoffset, uint16_t fgcolor,
       }
 // inside of circle - draw glyph
 #define LOADER_ICON_CORNER_CUT 2
+#define LOADER_INDETERMINATE_WIDTH 125
       if (icon &&
           mx + my > (((LOADER_ICON_SIZE / 2) + LOADER_ICON_CORNER_CUT) * 2) &&
           mx >= img_loader_size - (LOADER_ICON_SIZE / 2) &&
@@ -378,11 +379,20 @@ void display_loader(uint16_t progress, int yoffset, uint16_t fgcolor,
         PIXELDATA(iconcolortable[c]);
       } else {
         uint8_t c;
+        if (indeterminate) {
+          uint16_t diff = (progress > a) ? (progress - a) : (a - progress);
+          if (diff < LOADER_INDETERMINATE_WIDTH) {
+            c = (img_loader[my][mx] & 0x00F0) >> 4;
+          } else {
+            c = img_loader[my][mx] & 0x000F;
+          }
+        } else {
           if (progress > a) {
             c = (img_loader[my][mx] & 0x00F0) >> 4;
           } else {
             c = img_loader[my][mx] & 0x000F;
           }
+        }
         PIXELDATA(colortable[c]);
       }
     }

core/embed/extmod/modtrezorui/display.h

@@ -21,6 +21,7 @@
 #define __DISPLAY_H__
 
 #include <stdint.h>
+#include <stdbool.h>
 
 #if TREZOR_MODEL == T
 
@@ -82,9 +83,9 @@ void display_avatar(int x, int y, const void *data, int datalen,
                     uint16_t fgcolor, uint16_t bgcolor);
 void display_icon(int x, int y, int w, int h, const void *data, int datalen,
                   uint16_t fgcolor, uint16_t bgcolor);
-void display_loader(uint16_t progress, int yoffset, uint16_t fgcolor,
+void display_loader(uint16_t progress, bool indeterminate, int yoffset,
-                    uint16_t bgcolor, const uint8_t *icon, uint32_t iconlen,
+                    uint16_t fgcolor, uint16_t bgcolor, const uint8_t *icon,
-                    uint16_t iconfgcolor);
+                    uint32_t iconlen, uint16_t iconfgcolor);
 
 #ifndef TREZOR_PRINT_DISABLE
 void display_print_color(uint16_t fgcolor, uint16_t bgcolor);

core/embed/extmod/modtrezorui/modtrezorui-display.h

@@ -197,8 +197,8 @@ STATIC mp_obj_t mod_trezorui_Display_icon(size_t n_args, const mp_obj_t *args) {
 
 STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mod_trezorui_Display_icon_obj, 6, 6,
                                            mod_trezorui_Display_icon);
-/// def loader(self, progress: int, yoffset: int, fgcolor: int, bgcolor: int,
+/// def loader(self, progress: int, indeterminate: bool, yoffset: int, fgcolor:
-/// icon: bytes = None, iconfgcolor: int = None) -> None:
+/// int, bgcolor: int, icon: bytes = None, iconfgcolor: int = None) -> None:
 ///     '''
 ///     Renders a rotating loader graphic.
 ///     Progress determines its position (0-1000), fgcolor is used as foreground
@@ -210,12 +210,13 @@ STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mod_trezorui_Display_icon_obj, 6, 6,
 STATIC mp_obj_t mod_trezorui_Display_loader(size_t n_args,
                                             const mp_obj_t *args) {
   mp_int_t progress = mp_obj_get_int(args[1]);
-  mp_int_t yoffset = mp_obj_get_int(args[2]);
+  bool indeterminate = args[2] == mp_const_true;
-  mp_int_t fgcolor = mp_obj_get_int(args[3]);
+  mp_int_t yoffset = mp_obj_get_int(args[3]);
-  mp_int_t bgcolor = mp_obj_get_int(args[4]);
+  mp_int_t fgcolor = mp_obj_get_int(args[4]);
-  if (n_args > 5) {  // icon provided
+  mp_int_t bgcolor = mp_obj_get_int(args[5]);
+  if (n_args > 6) {  // icon provided
     mp_buffer_info_t icon;
-    mp_get_buffer_raise(args[5], &icon, MP_BUFFER_READ);
+    mp_get_buffer_raise(args[6], &icon, MP_BUFFER_READ);
     const uint8_t *data = icon.buf;
     if (icon.len < 8 || memcmp(data, "TOIg", 4) != 0) {
       mp_raise_ValueError("Invalid image format");
@@ -230,20 +231,21 @@ STATIC mp_obj_t mod_trezorui_Display_loader(size_t n_args,
       mp_raise_ValueError("Invalid size of data");
     }
     uint16_t iconfgcolor;
-    if (n_args > 6) {  // icon color provided
+    if (n_args > 7) {  // icon color provided
-      iconfgcolor = mp_obj_get_int(args[6]);
+      iconfgcolor = mp_obj_get_int(args[7]);
     } else {
       iconfgcolor = ~bgcolor;  // invert
     }
-    display_loader(progress, yoffset, fgcolor, bgcolor, icon.buf, icon.len,
+    display_loader(progress, indeterminate, yoffset, fgcolor, bgcolor, icon.buf,
-                   iconfgcolor);
+                   icon.len, iconfgcolor);
   } else {
-    display_loader(progress, yoffset, fgcolor, bgcolor, NULL, 0, 0);
+    display_loader(progress, indeterminate, yoffset, fgcolor, bgcolor, NULL, 0,
+                   0);
   }
   return mp_const_none;
 }
-STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mod_trezorui_Display_loader_obj, 5,
+STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mod_trezorui_Display_loader_obj, 6,
-                                           7, mod_trezorui_Display_loader);
+                                           8, mod_trezorui_Display_loader);
 
 /// def print(self, text: str) -> None:
 ///     '''

core/src/apps/cardano/layout/progress.py

@@ -24,5 +24,5 @@ def report_init(text):
 
 
 def report():
-    p = int(1000 * _progress / _steps)
+    p = 1000 * _progress // _steps
-    ui.display.loader(p, 18, ui.WHITE, ui.BG)
+    ui.display.loader(p, False, 18, ui.WHITE, ui.BG)

core/src/apps/common/mnemonic.py

@@ -44,6 +44,6 @@ def _start_progress():
 
 
 def _render_progress(progress: int, total: int):
-    p = int(1000 * progress / total)
+    p = 1000 * progress // total
-    ui.display.loader(p, 18, ui.WHITE, ui.BG)
+    ui.display.loader(p, False, 18, ui.WHITE, ui.BG)
     ui.display.refresh()

core/src/apps/monero/layout/confirms.py

@@ -144,8 +144,8 @@ async def transaction_step(state, step, sub_step=None):
     text = Text("Signing transaction", ui.ICON_SEND, icon_color=ui.BLUE)
     text.render()
 
-    p = int(1000.0 * state.progress_cur / state.progress_total)
+    p = 1000 * state.progress_cur // state.progress_total
-    ui.display.loader(p, -4, ui.WHITE, ui.BG)
+    ui.display.loader(p, False, -4, ui.WHITE, ui.BG)
     ui.display.text_center(ui.WIDTH // 2, 210, info[0], ui.NORMAL, ui.FG, ui.BG)
     if len(info) > 1:
         ui.display.text_center(ui.WIDTH // 2, 235, info[1], ui.NORMAL, ui.FG, ui.BG)
@@ -160,8 +160,8 @@ async def keyimage_sync_step(ctx, current, total_num):
     text = Text("Syncing", ui.ICON_SEND, icon_color=ui.BLUE)
     text.render()
 
-    p = (int(1000.0 * (current + 1) / total_num)) if total_num > 0 else 0
+    p = (1000 * (current + 1) // total_num) if total_num > 0 else 0
-    ui.display.loader(p, 18, ui.WHITE, ui.BG)
+    ui.display.loader(p, False, 18, ui.WHITE, ui.BG)
     ui.display.refresh()
 
 
@@ -173,11 +173,9 @@ async def live_refresh_step(ctx, current):
     text = Text("Refreshing", ui.ICON_SEND, icon_color=ui.BLUE)
     text.render()
 
-    step = 6
+    step = 8
-    p = int(1000.0 * (current / step)) % 1000
+    p = (1000 * current // step) % 1000
-    if p == 0 and current > 0:
-        p = 1000
 
-    ui.display.loader(p, 18, ui.WHITE, ui.BG, None, 0, 1000 // step)
+    ui.display.loader(p, True, 18, ui.WHITE, ui.BG, None, 0)
     ui.display.text_center(ui.WIDTH // 2, 145, "%d" % current, ui.NORMAL, ui.FG, ui.BG)
     ui.display.refresh()

core/src/apps/wallet/sign_tx/progress.py

@@ -24,5 +24,5 @@ def report_init():
 
 
 def report():
-    p = int(1000 * _progress / _steps)
+    p = 1000 * _progress // _steps
-    ui.display.loader(p, 18, ui.WHITE, ui.BG)
+    ui.display.loader(p, False, 18, ui.WHITE, ui.BG)

core/src/trezor/pin.py

@@ -18,7 +18,7 @@ def show_pin_timeout(seconds: int, progress: int, message: str) -> bool:
         ui.display.text_center(
             ui.WIDTH // 2, 37, message, ui.BOLD, ui.FG, ui.BG, ui.WIDTH
         )
-    ui.display.loader(progress, 0, ui.FG, ui.BG)
+    ui.display.loader(progress, False, 0, ui.FG, ui.BG)
     if seconds == 0:
         ui.display.text_center(
             ui.WIDTH // 2, ui.HEIGHT - 22, "Done", ui.BOLD, ui.FG, ui.BG, ui.WIDTH

core/src/trezor/ui/loader.py

@@ -47,12 +47,15 @@ class Loader(ui.Widget):
         else:
             s = self.normal_style
         if s["icon"] is None:
-            ui.display.loader(r, -24, s["fg-color"], s["bg-color"])
+            ui.display.loader(r, False, -24, s["fg-color"], s["bg-color"])
         elif s["icon-fg-color"] is None:
-            ui.display.loader(r, -24, s["fg-color"], s["bg-color"], res.load(s["icon"]))
+            ui.display.loader(
+                r, False, -24, s["fg-color"], s["bg-color"], res.load(s["icon"])
+            )
         else:
             ui.display.loader(
                 r,
+                False,
                 -24,
                 s["fg-color"],
                 s["bg-color"],