chore(gdb): add LVImageDecoder complete fields and dump image_decoder command

scripts/gdb/lvglgdb/__init__.py

@@ -36,6 +36,7 @@ from .lvgl import (
     EVENT_CODE_NAMES,
     LVAnim,
     LVTimer,
+    LVImageDecoder,
     LVFsDrv,
 )
 from . import cmds as cmds
@@ -76,5 +77,6 @@ __all__ = [
     "EVENT_CODE_NAMES",
     "LVAnim",
     "LVTimer",
+    "LVImageDecoder",
     "LVFsDrv",
 ]

scripts/gdb/lvglgdb/cmds/__init__.py

@@ -10,6 +10,7 @@ from .misc import (
     CheckCache,
     DumpAnim,
     DumpTimer,
+    DumpImageDecoder,
     DumpFsDrv,
 )
 from .debugger import Debugger
@@ -35,6 +36,7 @@ CheckPrefix()
 CheckCache()
 DumpAnim()
 DumpTimer()
+DumpImageDecoder()
 DumpFsDrv()
 DumpDrawTask()
 

scripts/gdb/lvglgdb/cmds/misc/__init__.py

@@ -2,6 +2,7 @@ from .lv_style import InfoStyle
 from .lv_cache import DumpCache, CheckPrefix, CheckCache
 from .lv_anim import DumpAnim
 from .lv_timer import DumpTimer
+from .lv_image_decoder import DumpImageDecoder
 from .lv_fs import DumpFsDrv
 
 __all__ = [
@@ -11,5 +12,6 @@ __all__ = [
     "CheckCache",
     "DumpAnim",
     "DumpTimer",
+    "DumpImageDecoder",
     "DumpFsDrv",
 ]

scripts/gdb/lvglgdb/cmds/misc/lv_image_decoder.py

@@ -0,0 +1,16 @@
+import gdb
+
+from lvglgdb.lvgl import curr_inst
+from lvglgdb.lvgl.misc.lv_image_decoder import LVImageDecoder
+
+
+class DumpImageDecoder(gdb.Command):
+    """dump all registered image decoders"""
+
+    def __init__(self):
+        super(DumpImageDecoder, self).__init__(
+            "dump image_decoder", gdb.COMMAND_USER, gdb.COMPLETE_EXPRESSION
+        )
+
+    def invoke(self, args, from_tty):
+        LVImageDecoder.print_entries(curr_inst().image_decoders())

scripts/gdb/lvglgdb/lvgl/__init__.py

@@ -37,6 +37,7 @@ from .misc import (
     EVENT_CODE_NAMES,
     LVAnim,
     LVTimer,
+    LVImageDecoder,
     LVFsDrv,
 )
 
@@ -81,5 +82,6 @@ __all__ = [
     "EVENT_CODE_NAMES",
     "LVAnim",
     "LVTimer",
+    "LVImageDecoder",
     "LVFsDrv",
 ]

scripts/gdb/lvglgdb/lvgl/core/lv_global.py

@@ -73,6 +73,12 @@ class LVGL:
         for timer in LVList(self.lv_global.timer_state.timer_ll, "lv_timer_t"):
             yield LVTimer(timer)
 
+    def image_decoders(self):
+        from ..misc.lv_image_decoder import LVImageDecoder
+
+        for dec in LVList(self.lv_global.img_decoder_ll, "lv_image_decoder_t"):
+            yield LVImageDecoder(dec)
+
     def fs_drivers(self):
         from ..misc.lv_fs import LVFsDrv
 

scripts/gdb/lvglgdb/lvgl/misc/__init__.py

@@ -25,6 +25,7 @@ from .lv_event import (
 )
 from .lv_anim import LVAnim
 from .lv_timer import LVTimer
+from .lv_image_decoder import LVImageDecoder
 from .lv_fs import LVFsDrv
 
 __all__ = [
@@ -56,5 +57,6 @@ __all__ = [
     "EVENT_CODE_NAMES",
     "LVAnim",
     "LVTimer",
+    "LVImageDecoder",
     "LVFsDrv",
 ]

scripts/gdb/lvglgdb/lvgl/misc/lv_image_decoder.py

@@ -0,0 +1,62 @@
+from prettytable import PrettyTable
+
+from lvglgdb.value import Value, ValueInput
+
+
+class LVImageDecoder(Value):
+    """LVGL image decoder wrapper"""
+
+    def __init__(self, decoder: ValueInput):
+        super().__init__(Value.normalize(decoder, "lv_image_decoder_t"))
+
+    @property
+    def name(self) -> str:
+        n = self.super_value("name")
+        return n.string() if int(n) else "(unnamed)"
+
+    @property
+    def info_cb(self) -> Value:
+        return self.super_value("info_cb")
+
+    @property
+    def open_cb(self) -> Value:
+        return self.super_value("open_cb")
+
+    @property
+    def close_cb(self) -> Value:
+        return self.super_value("close_cb")
+
+    @property
+    def get_area_cb(self) -> Value:
+        return self.super_value("get_area_cb")
+
+    @property
+    def custom_draw_cb(self) -> Value:
+        return self.super_value("custom_draw_cb")
+
+    @property
+    def user_data(self) -> Value:
+        return self.super_value("user_data")
+
+    @staticmethod
+    def print_entries(decoders):
+        """Print image decoders as a PrettyTable."""
+        table = PrettyTable()
+        table.field_names = ["#", "name", "info_cb", "open_cb", "close_cb"]
+        table.align = "l"
+
+        for i, dec in enumerate(decoders):
+            table.add_row(
+                [
+                    i,
+                    dec.name,
+                    dec.info_cb.format_string(symbols=True),
+                    dec.open_cb.format_string(symbols=True),
+                    dec.close_cb.format_string(symbols=True),
+                ]
+            )
+
+        if not table.rows:
+            print("No registered image decoders.")
+        else:
+            print(table)