1 files changed, 45 insertions, 20 deletions

diff --git a/indra/newview/gltf/primitive.h b/indra/newview/gltf/primitive.h
index 07e8e7deb2..304eb26432 100644
--- a/indra/newview/gltf/primitive.h
+++ b/indra/newview/gltf/primitive.h
@@ -28,35 +28,39 @@
 
 #include "llvertexbuffer.h"
 #include "llvolumeoctree.h"
+#include "boost/json.hpp"
 
 // LL GLTF Implementation
 namespace LL
 {
     namespace GLTF
     {
+        using Value = boost::json::value;
         class Asset;
 
-        constexpr U32 ATTRIBUTE_MASK =
-            LLVertexBuffer::MAP_VERTEX |
-            LLVertexBuffer::MAP_NORMAL |
-            LLVertexBuffer::MAP_TEXCOORD0 |
-            LLVertexBuffer::MAP_TANGENT |
-            LLVertexBuffer::MAP_COLOR;
-
         class Primitive
         {
         public:
-            ~Primitive();
+            enum class Mode : U8
+            {
+                POINTS,
+                LINES,
+                LINE_LOOP,
+                LINE_STRIP,
+                TRIANGLES,
+                TRIANGLE_STRIP,
+                TRIANGLE_FAN
+            };
 
-            // GPU copy of mesh data
-            LLPointer<LLVertexBuffer> mVertexBuffer;
+            ~Primitive();
 
             // CPU copy of mesh data
-            std::vector<LLVector2> mTexCoords;
+            std::vector<LLVector2> mTexCoords0;
+            std::vector<LLVector2> mTexCoords1;
             std::vector<LLVector4a> mNormals;
             std::vector<LLVector4a> mTangents;
             std::vector<LLVector4a> mPositions;
-            std::vector<LLVector4a> mJoints;
+            std::vector<U64> mJoints;
             std::vector<LLVector4a> mWeights;
             std::vector<LLColor4U> mColors;
             std::vector<U32> mIndexArray;
@@ -64,18 +68,33 @@ namespace LL
             // raycast acceleration structure
             LLPointer<LLVolumeOctree> mOctree;
             std::vector<LLVolumeTriangle> mOctreeTriangles;
-            
+
             S32 mMaterial = -1;
-            U32 mMode = TINYGLTF_MODE_TRIANGLES; // default to triangles
-            U32 mGLMode = LLRender::TRIANGLES;
+            Mode mMode = Mode::TRIANGLES; // default to triangles
+            LLRender::eGeomModes mGLMode = LLRender::TRIANGLES; // for use with LLRender
             S32 mIndices = -1;
-            std::unordered_map<std::string, int> mAttributes;
+
+            // shader variant according to LLGLSLShader::GLTFVariant flags
+            U8 mShaderVariant = 0;
+
+            // vertex attribute mask
+            U32 mAttributeMask = 0;
+
+            // backpointer to vertex buffer (owned by Asset)
+            LLPointer<LLVertexBuffer> mVertexBuffer;
+            U32 mVertexOffset = 0;
+            U32 mIndexOffset = 0;
+
+            U32 getVertexCount() const { return (U32) mPositions.size(); }
+            U32 getIndexCount() const { return (U32) mIndexArray.size(); }
+
+            std::unordered_map<std::string, S32> mAttributes;
 
             // create octree based on vertex buffer
             // must be called before buffer is unmapped and after buffer is populated with good data
             void createOctree();
 
-            //get the LLVolumeTriangle that intersects with the given line segment at the point 
+            //get the LLVolumeTriangle that intersects with the given line segment at the point
             //closest to start.  Moves end to the point of intersection.  Returns nullptr if no intersection.
             //Line segment must be in the same coordinate frame as this Primitive
             const LLVolumeTriangle* lineSegmentIntersect(const LLVector4a& start, const LLVector4a& end,
@@ -84,10 +103,16 @@ namespace LL
                 LLVector4a* normal = NULL,               // return the surface normal at the intersection point
                 LLVector4a* tangent = NULL             // return the surface tangent at the intersection point
             );
-            
-            const Primitive& operator=(const tinygltf::Primitive& src);
 
-            void allocateGLResources(Asset& asset);
+            void serialize(boost::json::object& obj) const;
+            const Primitive& operator=(const Value& src);
+
+            bool prep(Asset& asset);
+
+            // upload geometry to given vertex buffer
+            // asserts that buffer is bound
+            // asserts that buffer is valid for this primitive
+            void upload(LLVertexBuffer* buffer);
         };
     }
 }