1 files changed, 70 insertions, 0 deletions
diff --git a/indra/newview/llfetchedgltfmaterial.h b/indra/newview/llfetchedgltfmaterial.h
new file mode 100644
index 0000000000..1668657281
--- /dev/null
+++ b/indra/newview/llfetchedgltfmaterial.h
@@ -0,0 +1,70 @@
+/**
+ * @file   llfetchedgltfmaterial.h
+ *
+ * $LicenseInfo:firstyear=2022&license=viewerlgpl$
+ * Second Life Viewer Source Code
+ * Copyright (C) 2022, Linden Research, Inc.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License only.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ *
+ * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
+ * $/LicenseInfo$
+ */
+
+
+#pragma once
+
+#include "llgltfmaterial.h"
+#include "llpointer.h"
+#include "llviewertexture.h"
+
+class LLGLSLShader;
+
+class LLFetchedGLTFMaterial: public LLGLTFMaterial
+{
+    friend class LLGLTFMaterialList; // for lifetime management
+public:
+    LLFetchedGLTFMaterial();
+    virtual ~LLFetchedGLTFMaterial();
+
+    LLFetchedGLTFMaterial& operator=(const LLFetchedGLTFMaterial& rhs);
+
+    // If this material is loaded, fire the given function
+    void onMaterialComplete(std::function<void()> material_complete);
+
+    // bind this material for rendering
+    //   media_tex - optional media texture that may override the base color texture
+    void bind(LLViewerTexture* media_tex = nullptr);
+
+    bool isFetching() const { return mFetching; }
+
+    // Textures used for fetching/rendering
+    LLPointer<LLViewerFetchedTexture> mBaseColorTexture;
+    LLPointer<LLViewerFetchedTexture> mNormalTexture;
+    LLPointer<LLViewerFetchedTexture> mMetallicRoughnessTexture;
+    LLPointer<LLViewerFetchedTexture> mEmissiveTexture;
+
+protected:
+    // Lifetime management
+    
+    void materialBegin();
+    void materialComplete();
+
+    F64 mExpectedFlusTime; // since epoch in seconds
+    bool mActive;
+    bool mFetching;
+    std::vector<std::function<void()>> materialCompleteCallbacks;
+};
+