Fat: Extend compression to smaller images

lib_nbgl/include/nbgl_draw.h

@@ -31,6 +31,8 @@ extern "C" {
 /**********************
  * GLOBAL PROTOTYPES
  **********************/
+
+void nbgl_drawIcon(nbgl_area_t *area, nbgl_color_map_t color_map, const nbgl_icon_details_t *icon);
 void nbgl_drawRoundedRect(const nbgl_area_t *area, nbgl_radius_t radius, color_t innerColor);
 void nbgl_drawRoundedBorderedRect(const nbgl_area_t *area, nbgl_radius_t radius, uint8_t stroke, color_t innerColor, color_t borderColor);
 void nbgl_drawText(const nbgl_area_t *area, const char* text, uint16_t textLen, nbgl_font_id_e fontId, color_t fontColor);

lib_nbgl/src/nbgl_draw.c

@@ -363,6 +363,24 @@ void nbgl_drawRoundedBorderedRect(const nbgl_area_t *area, nbgl_radius_t radiusI
   }
 }
 
+/**
+ * @brief Helper function to render an icon directly from its `nbgl_icon_details_t` structure.
+ *
+ * The icon is rendered whether it's an image file or not.
+ * No transformation is applied to the icon.
+ *
+ * @param area Area of drawing
+ * @param color_map Color map applied to icon
+ * @param icon Icon details structure to draw
+ */
+void nbgl_drawIcon(nbgl_area_t *area, nbgl_color_map_t color_map, const nbgl_icon_details_t *icon) {
+  if (icon->isFile) {
+    nbgl_frontDrawImageFile(area, icon->bitmap, color_map, ramBuffer);
+  } else {
+    nbgl_frontDrawImage(area, icon->bitmap, NO_TRANSFORMATION, color_map);
+  }
+}
+
 /**
  * @brief Return the size of the bitmap associated to the input font and character
  *

lib_nbgl/src/nbgl_obj.c

@@ -332,8 +332,9 @@ static void draw_button(nbgl_button_t* obj, nbgl_obj_t *prevObj, bool computePos
     rectArea.y0 = iconY0;
     rectArea.width = obj->icon->width;
     rectArea.height = obj->icon->height;
-    rectArea.bpp = NBGL_BPP_1;
-    nbgl_frontDrawImage(&rectArea,(uint8_t*)obj->icon->bitmap,NO_TRANSFORMATION, obj->foregroundColor);
+    rectArea.bpp = obj->icon->bpp;
+
+    nbgl_drawIcon(&rectArea, obj->foregroundColor, obj->icon);
   }
 }
 
@@ -428,12 +429,8 @@ static void draw_image(nbgl_image_t* obj, nbgl_obj_t *prevObj, bool computePosit
   else {
     colorMap = obj->foregroundColor;
   }
-  if (!iconDetails->isFile) {
-    nbgl_frontDrawImage((nbgl_area_t*)obj, (uint8_t*)iconDetails->bitmap, NO_TRANSFORMATION, colorMap);
-  }
-  else {
-    nbgl_frontDrawImageFile((nbgl_area_t*)obj, (uint8_t*)iconDetails->bitmap, colorMap, ramBuffer);
-  }
+
+  nbgl_drawIcon((nbgl_area_t *) obj, colorMap, iconDetails);
 }
 
 static void draw_switch(nbgl_switch_t* obj, nbgl_obj_t *prevObj, bool computePosition) {
@@ -492,10 +489,10 @@ static void draw_radioButton(nbgl_radio_t* obj, nbgl_obj_t *prevObj, bool comput
   rectArea.backgroundColor = obj->obj.area.backgroundColor;
   rectArea.bpp = NBGL_BPP_1;
   if (obj->state == OFF_STATE) {
-    nbgl_frontDrawImage(&rectArea,(uint8_t*)C_radio_inactive_32px.bitmap,NO_TRANSFORMATION,obj->borderColor);
+    nbgl_drawIcon(&rectArea, obj->borderColor, &C_radio_inactive_32px);
   }
   else {
-    nbgl_frontDrawImage(&rectArea,(uint8_t*)C_radio_active_32px.bitmap,NO_TRANSFORMATION,obj->activeColor);
+    nbgl_drawIcon(&rectArea, obj->activeColor, &C_radio_active_32px);
   }
 }
 

lib_nbgl/src/nbgl_obj_keyboard.c

@@ -328,10 +328,9 @@ static void keyboardDrawLetters(nbgl_keyboard_t *keyboard) {
     rectArea.y0 = (keyboard->obj.area.y0 + KEYBOARD_KEY_HEIGHT*2 + (KEYBOARD_KEY_HEIGHT-rectArea.height)/2) & 0xFFC;
     rectArea.x0 = (SHIFT_KEY_WIDTH-rectArea.width)/2;
     rectArea.backgroundColor = (keyboard->casing != LOWER_CASE)?BLACK:WHITE;
-    nbgl_frontDrawImage(&rectArea,
-                        (keyboard->casing == LOCKED_UPPER_CASE)?(uint8_t*)C_shift_lock32px.bitmap:(uint8_t*)C_shift32px.bitmap,
-                        NO_TRANSFORMATION,
-                        (keyboard->casing != LOWER_CASE)?WHITE:BLACK);
+    nbgl_drawIcon(&rectArea,
+                         (keyboard->casing != LOWER_CASE)?WHITE:BLACK,
+                         (keyboard->casing != LOCKED_UPPER_CASE)?(&C_shift_lock32px):(&C_shift32px));
     rectArea.backgroundColor = WHITE;
     offsetX = keyboard->obj.area.x0 + SHIFT_KEY_WIDTH;
   }
@@ -358,7 +357,7 @@ static void keyboardDrawLetters(nbgl_keyboard_t *keyboard) {
   else {
     rectArea.x0 += (BACKSPACE_KEY_WIDTH_LETTERS_ONLY-rectArea.width)/2;
   }
-  nbgl_frontDrawImage(&rectArea,(uint8_t*)C_backspace32px.bitmap,NO_TRANSFORMATION,BLACK);
+  nbgl_drawIcon(&rectArea, BLACK, &C_backspace32px);
 
   // 4th row, only in Full mode
   if (!keyboard->lettersOnly) {
@@ -367,7 +366,7 @@ static void keyboardDrawLetters(nbgl_keyboard_t *keyboard) {
     nbgl_drawText(&rectArea, ".?123", 5, BAGL_FONT_INTER_REGULAR_24px_1bpp, BLACK);
 
     rectArea.x0 = SWITCH_KEY_WIDTH+(SPACE_KEY_WIDTH-C_space32px.width)/2;
-    nbgl_frontDrawImage(&rectArea,(uint8_t*)C_space32px.bitmap, NO_TRANSFORMATION, (keyboard->keyMask&(1<<SPACE_KEY_INDEX))? WHITE:BLACK);
+    nbgl_drawIcon(&rectArea, (keyboard->keyMask&(1<<SPACE_KEY_INDEX))? WHITE:BLACK, &C_space32px);
   }
 
 }

lib_nbgl/src/nbgl_obj_keypad.c

@@ -33,6 +33,8 @@
 #define GET_DIGIT_INDEX(_keypad, _digit) ((_digit&1)?(_keypad->digitIndexes[_digit>>1]>>4):(_keypad->digitIndexes[_digit>>1]&0xF))
 #define SET_DIGIT_INDEX(_keypad, _digit, _index) (_keypad->digitIndexes[_digit>>1] |= (_digit&1)?(_index<<4):_index)
 
+extern uint8_t ramBuffer[GZLIB_UNCOMPRESSED_CHUNK];
+
 /**********************
  *      TYPEDEFS
  **********************/
@@ -163,7 +165,11 @@ static void keypadDrawDigits(nbgl_keypad_t *keypad) {
   rectArea.bpp = NBGL_BPP_1;
   rectArea.x0 = keypad->obj.area.x0 + (KEY_WIDTH-rectArea.width)/2;
   rectArea.y0 = keypad->obj.area.y0 + KEYPAD_KEY_HEIGHT*3 + (KEYPAD_KEY_HEIGHT-rectArea.height)/2;
-  nbgl_frontDrawImage(&rectArea,(uint8_t*)C_backspace32px.bitmap,NO_TRANSFORMATION, keypad->enableBackspace?BLACK:WHITE);
+  #if GLYPH_backspace32px_ISFILE
+  nbgl_frontDrawImageFile(&rectArea,(uint8_t*)C_backspace32px.bitmap, keypad->enableBackspace?BLACK:WHITE, ramBuffer);
+  #else
+  nbgl_frontDrawImage(&rectArea,(uint8_t*)C_backspace32px.bitmap, NO_TRANSFORMATION, keypad->enableBackspace?BLACK:WHITE);
+  #endif
 
   // draw 0
   key_value = GET_DIGIT_INDEX(keypad,0)+0x30;
@@ -197,7 +203,11 @@ static void keypadDrawDigits(nbgl_keypad_t *keypad) {
     rectArea.bpp = NBGL_BPP_1;
     rectArea.x0 = keypad->obj.area.x0 + 2*KEY_WIDTH + (KEY_WIDTH-rectArea.width)/2;
     rectArea.y0 = keypad->obj.area.y0 + KEYPAD_KEY_HEIGHT*3 + (KEYPAD_KEY_HEIGHT-rectArea.height)/2;
+#if GLYPH_check32px_ISFILE
+    nbgl_frontDrawImageFile(&rectArea,(uint8_t*)C_check32px.bitmap, WHITE, ramBuffer);
+#else
     nbgl_frontDrawImage(&rectArea,(uint8_t*)C_check32px.bitmap,NO_TRANSFORMATION, WHITE);
+#endif
   }
 }
 

lib_nbgl/tools/icon2glyph.py

@@ -211,23 +211,22 @@ def compute_app_icon_data(im: Image, bpp) -> Tuple[bool, bytes]:
     return is_file, image_data
 
 
-def compute_regular_icon_data(im: Image, bpp) -> Tuple[bool, bytes]:
+def compute_regular_icon_data(no_comp: bool, im: Image, bpp) -> Tuple[bool, bytes]:
     """
     Process image as regular icon:
     - Regular icon are image file only if compressed
     - Compression is limited to images bigger than 64x64
     """
     width, height = im.size
-    # We do not compress regular icon smaller than 64x64 because
-    # these smaller images are the one being transformed through
-    # symmetry. And the symmetry is not implemented for compressed
-    # icons (yet).
-    if (width >= 64) and (height >= 64):
+
+    if not no_comp:
         compression, image_data = compress(im, bpp)
         if compression != NbglFileCompression.NoCompression:
             is_file = True
             image_data = convert_to_image_file(
                 image_data, width, height, bpp, compression)
+        else:
+            is_file = False
     else:
         is_file = False
         image_data = image_to_packed_buffer(im, bpp)
@@ -284,7 +283,11 @@ def print_glyphcheader_data(image_name, bpp, width, height, is_file, image_data)
 def main():
     parser = argparse.ArgumentParser(
         description='Generate source code for NBGL icons.')
-    parser.add_argument('image_file', help="Icons to process", nargs='+')
+    parser.add_argument('image_file', help="""
+                        Icons to process.
+                        Images that will be transformed through rotation or symmetry
+                        must be suffixed by '_nocomp' (example: image_nocomp.png)
+                        """, nargs='+')
     parser.add_argument('--hexbitmaponly', action='store_true')
     parser.add_argument('--glyphcheader', action='store_true')
     parser.add_argument('--glyphcfile', action='store_true')
@@ -319,7 +322,15 @@ def main():
             else:
                 # Prepare and print regular icon data
                 width, height = im.size
-                is_file, image_data = compute_regular_icon_data(im, bpp)
+
+                # Forbid compression if the image name ends with nocomp.
+                if image_name.endswith('_nocomp'):
+                    no_comp = True
+                    image_name = image_name[:-7] # Remove nocomp suffix
+                else:
+                    no_comp = False
+
+                is_file, image_data = compute_regular_icon_data(no_comp, im, bpp)
 
                 if args.glyphcfile:
                     print_glyphcfile_data(image_name, bpp, image_data)