Don't delete a texture when async load is pending

core/rend/gles/CustomTexture.cpp

@@ -54,6 +54,7 @@ void CustomTexture::LoaderThread()
 				texture->custom_height = height;
 				texture->custom_image_data = image_data;
 			}
+			texture->custom_load_in_progress = false;
 		}
 		
 		wakeup_thread.Wait();

core/rend/gles/gles.h

@@ -270,6 +270,7 @@ struct TextureCacheData
 	u8* custom_image_data;		// loaded custom image data
 	u32 custom_width;
 	u32 custom_height;
+	bool custom_load_in_progress;
 	
 	void PrintTextureName();
 	
@@ -285,5 +286,5 @@ struct TextureCacheData
 	void CheckCustomTexture();
 	//true if : dirty or paletted texture and hashes don't match
 	bool NeedsUpdate();
-	void Delete();
+	bool Delete();
 };

core/rend/gles/gltex.cpp

@@ -408,6 +408,7 @@ void TextureCacheData::Update()
 	}
 	if (settings.rend.CustomTextures)
 	{
+		custom_load_in_progress = true;
 		custom_texture.LoadCustomTextureAsync(this);
 	}
 
@@ -560,8 +561,11 @@ bool TextureCacheData::NeedsUpdate() {
 	return rc;
 }
 	
-void TextureCacheData::Delete()
+bool TextureCacheData::Delete()
 {
+	if (custom_load_in_progress)
+		return false;
+	
 	if (pData) {
 		#if FEAT_HAS_SOFTREND
 			_mm_free(pData);
@@ -579,6 +583,8 @@ void TextureCacheData::Delete()
 	lock_block=0;
 	if (custom_image_data != NULL)
 		delete [] custom_image_data;
+	
+	return true;
 }
 
 
@@ -951,10 +957,11 @@ void CollectCleanup() {
 	}
 
 	for (size_t i=0; i<list.size(); i++) {
-		//printf("Deleting %d\n",TexCache[list[i]].texID);
-		TexCache[list[i]].Delete();
-
-		TexCache.erase(list[i]);
+		if (TexCache[list[i]].Delete())
+		{
+			//printf("Deleting %d\n", TexCache[list[i]].texID);
+			TexCache.erase(list[i]);
+		}
 	}
 }