improve helpfulness of jpeg error

RetiredWizard · RetiredWizard · commit d50b44c87632 · 2025-10-21T23:38:15.000-04:00
diff --git a/shared-module/jpegio/JpegDecoder.c b/shared-module/jpegio/JpegDecoder.c
@@ -46,7 +46,7 @@ static void check_jresult(JRESULT j) {
             msg = MP_ERROR_TEXT("Right format but not supported");
             break;
         case JDR_FMT3:
-            msg = MP_ERROR_TEXT("Not supported JPEG standard");
+            msg = MP_ERROR_TEXT("Unsupported JPEG (may be progressive)");
             break;
     }
     mp_raise_RuntimeError(msg);

Original file line number	Diff line number	Diff line change
`@@ -46,7 +46,7 @@ static void check_jresult(JRESULT j) {`
`46`	`46`	`msg = MP_ERROR_TEXT("Right format but not supported");`
`47`	`47`	`break;`
`48`	`48`	`case JDR_FMT3:`
`49`		`- msg = MP_ERROR_TEXT("Not supported JPEG standard");`
	`49`	`+ msg = MP_ERROR_TEXT("Unsupported JPEG (may be progressive)");`
`50`	`50`	`break;`
`51`	`51`	`}`
`52`	`52`	`mp_raise_RuntimeError(msg);`