Invalidate the texture cache using the GPU thread when the CPU thread makes a request.

Fixes issue 6350.

Source/Core/Core/Src/HLE/HLE_Misc.cpp

@@ -311,7 +311,7 @@ void ExecuteDOL(u8* dolFile, u32 fileSize)
 	}
 
 	PowerPC::ppcState.iCache.Reset();
-	TextureCache::Invalidate();
+	TextureCache::RequestInvalidateTextureCache();
 
 	CWII_IPC_HLE_Device_usb_oh1_57e_305* s_Usb = GetUsbPointer();
 	size_t size = s_Usb->m_WiiMotes.size();

Source/Core/VideoCommon/Src/TextureCacheBase.cpp

@@ -32,6 +32,7 @@ TextureCache::TexCache TextureCache::textures;
 
 TextureCache::BackupConfig TextureCache::backup_config;
 
+bool invalidate_texture_cache_requested;
 
 TextureCache::TCacheEntryBase::~TCacheEntryBase()
 {
@@ -49,6 +50,13 @@ TextureCache::TextureCache()
 		HiresTextures::Init(SConfig::GetInstance().m_LocalCoreStartupParameter.m_strUniqueID.c_str());
 
 	SetHash64Function(g_ActiveConfig.bHiresTextures || g_ActiveConfig.bDumpTextures);
+
+	invalidate_texture_cache_requested = false;
+}
+
+void TextureCache::RequestInvalidateTextureCache()
+{
+	invalidate_texture_cache_requested = true;
 }
 
 void TextureCache::Invalidate()
@@ -80,7 +88,8 @@ void TextureCache::OnConfigChanged(VideoConfig& config)
 		if (config.iSafeTextureCache_ColorSamples != backup_config.s_colorsamples ||
 			config.bTexFmtOverlayEnable != backup_config.s_texfmt_overlay ||
 			config.bTexFmtOverlayCenter != backup_config.s_texfmt_overlay_center ||
-			config.bHiresTextures != backup_config.s_hires_textures)
+			config.bHiresTextures != backup_config.s_hires_textures ||
+			invalidate_texture_cache_requested)
 		{
 			g_texture_cache->Invalidate();
 
@@ -89,6 +98,8 @@ void TextureCache::OnConfigChanged(VideoConfig& config)
 
 			SetHash64Function(g_ActiveConfig.bHiresTextures || g_ActiveConfig.bDumpTextures);
 			TexDecoder_SetTexFmtOverlayOptions(g_ActiveConfig.bTexFmtOverlayEnable, g_ActiveConfig.bTexFmtOverlayCenter);
+
+			invalidate_texture_cache_requested = false;
 		}
 
 		// TODO: Probably shouldn't clear all render targets here, just mark them dirty or something.

Source/Core/VideoCommon/Src/TextureCacheBase.h

@@ -107,6 +107,8 @@ public:
 	static void CopyRenderTargetToTexture(u32 dstAddr, unsigned int dstFormat, unsigned int srcFormat,
 		const EFBRectangle& srcRect, bool isIntensity, bool scaleByHalf);
 
+	static void RequestInvalidateTextureCache();
+
 protected:
 	TextureCache();
 
@@ -118,7 +120,6 @@ private:
 	static PC_TexFormat LoadCustomTexture(u64 tex_hash, int texformat, unsigned int level, unsigned int& width, unsigned int& height);
 	static void DumpTexture(TCacheEntryBase* entry, unsigned int level);
 
-
 	typedef std::map<u32, TCacheEntryBase*> TexCache;
 
 	static TexCache textures;