Fix ResourceID validation check expression

there are three methods which have wrong expression
getFallbackDrawable()
getErrorDrawable()
getPlaceholderDrawable()
According to the official documentation, resourceID can have a negative
value, so I modified the if statement logic to include correct validation.

Author: hyuns66

library/src/main/java/com/bumptech/glide/request/SingleRequest.java

@@ -387,7 +387,8 @@ public boolean isAnyResourceSet() {
   private Drawable getErrorDrawable() {
     if (errorDrawable == null) {
       errorDrawable = requestOptions.getErrorPlaceholder();
-      if (errorDrawable == null && requestOptions.getErrorId() > 0) {
+      if (errorDrawable == null && requestOptions.getErrorId() != -1 &&
+              (requestOptions.getErrorId() & 0xff000000) != 0 && (requestOptions.getErrorId() & 0x00ff0000) != 0) {
         errorDrawable = loadDrawable(requestOptions.getErrorId());
       }
     }
@@ -398,7 +399,8 @@ private Drawable getErrorDrawable() {
   private Drawable getPlaceholderDrawable() {
     if (placeholderDrawable == null) {
       placeholderDrawable = requestOptions.getPlaceholderDrawable();
-      if (placeholderDrawable == null && requestOptions.getPlaceholderId() > 0) {
+      if (placeholderDrawable == null && requestOptions.getPlaceholderId() != -1 &&
+              (requestOptions.getPlaceholderId() & 0xff000000) != 0 && (requestOptions.getPlaceholderId() & 0x00ff0000) != 0) {
         placeholderDrawable = loadDrawable(requestOptions.getPlaceholderId());
       }
     }
@@ -409,7 +411,8 @@ private Drawable getPlaceholderDrawable() {
   private Drawable getFallbackDrawable() {
     if (fallbackDrawable == null) {
       fallbackDrawable = requestOptions.getFallbackDrawable();
-      if (fallbackDrawable == null && requestOptions.getFallbackId() > 0) {
+      if (fallbackDrawable == null && requestOptions.getFallbackId() != -1 &&
+              (requestOptions.getFallbackId() & 0xff000000) != 0 && (requestOptions.getFallbackId() & 0x00ff0000) != 0) {
         fallbackDrawable = loadDrawable(requestOptions.getFallbackId());
       }
     }