glgsg: Expose native IDs for other kinds of resources than textures

Fixes #1468

panda/src/glstuff/glBufferContext_src.cxx

@@ -47,3 +47,13 @@ evict_lru() {
   update_data_size_bytes(0);
   set_resident(false);
 }
+
+/**
+ * Returns an implementation-defined handle or pointer that can be used
+ * to interface directly with the underlying API.
+ * Returns 0 if the underlying implementation does not support this.
+ */
+uint64_t CLP(BufferContext)::
+get_native_id() const {
+  return _index;
+}

panda/src/glstuff/glBufferContext_src.h

@@ -27,6 +27,8 @@ public:
 
   virtual void evict_lru();
 
+  virtual uint64_t get_native_id() const;
+
   CLP(GraphicsStateGuardian) *_glgsg;
 
   // This is the GL "name" of the data object.

panda/src/glstuff/glIndexBufferContext_src.cxx

@@ -47,3 +47,13 @@ evict_lru() {
   update_data_size_bytes(0);
   mark_unloaded();
 }
+
+/**
+ * Returns an implementation-defined handle or pointer that can be used
+ * to interface directly with the underlying API.
+ * Returns 0 if the underlying implementation does not support this.
+ */
+uint64_t CLP(IndexBufferContext)::
+get_native_id() const {
+  return _index;
+}

panda/src/glstuff/glIndexBufferContext_src.h

@@ -27,6 +27,8 @@ public:
 
   virtual void evict_lru();
 
+  virtual uint64_t get_native_id() const;
+
   CLP(GraphicsStateGuardian) *_glgsg;
 
   // This is the GL "name" of the data object.

panda/src/glstuff/glSamplerContext_src.cxx

@@ -68,4 +68,14 @@ reset_data() {
   // the sampler later.  glGenSamplers(1, &_index);
 }
 
+/**
+ * Returns an implementation-defined handle or pointer that can be used
+ * to interface directly with the underlying API.
+ * Returns 0 if the underlying implementation does not support this.
+ */
+uint64_t CLP(SamplerContext)::
+get_native_id() const {
+  return _index;
+}
+
 #endif  // OPENGLES_1

panda/src/glstuff/glSamplerContext_src.h

@@ -33,6 +33,8 @@ public:
   virtual void evict_lru();
   void reset_data();
 
+  virtual uint64_t get_native_id() const;
+
   // This is the GL "name" of the sampler object.
   GLuint _index;
 

panda/src/glstuff/glVertexBufferContext_src.cxx

@@ -47,3 +47,13 @@ evict_lru() {
   update_data_size_bytes(0);
   mark_unloaded();
 }
+
+/**
+ * Returns an implementation-defined handle or pointer that can be used
+ * to interface directly with the underlying API.
+ * Returns 0 if the underlying implementation does not support this.
+ */
+uint64_t CLP(VertexBufferContext)::
+get_native_id() const {
+  return _index;
+}

panda/src/glstuff/glVertexBufferContext_src.h

@@ -29,6 +29,8 @@ public:
 
   virtual void evict_lru();
 
+  virtual uint64_t get_native_id() const;
+
   CLP(GraphicsStateGuardian) *_glgsg;
 
   // This is the GL "name" of the data object.

panda/src/gobj/savedContext.cxx

@@ -31,3 +31,13 @@ void SavedContext::
 write(std::ostream &out, int indent_level) const {
   indent(out, indent_level) << *this << "\n";
 }
+
+/**
+ * Returns an implementation-defined handle or pointer that can be used
+ * to interface directly with the underlying API.
+ * Returns 0 if the underlying implementation does not support this.
+ */
+uint64_t SavedContext::
+get_native_id() const {
+  return 0;
+}

panda/src/gobj/savedContext.h

@@ -31,10 +31,12 @@ public:
   virtual void write(std::ostream &out, int indent_level) const;
 
 PUBLISHED:
+  virtual uint64_t get_native_id() const;
+
+public:
   static TypeHandle get_class_type() {
     return _type_handle;
   }
-public:
   static void init_type() {
     TypedObject::init_type();
     register_type(_type_handle, "SavedContext",

panda/src/gobj/textureContext.cxx

@@ -15,16 +15,6 @@
 
 TypeHandle TextureContext::_type_handle;
 
-/**
- * Returns an implementation-defined handle or pointer that can be used
- * to interface directly with the underlying API.
- * Returns 0 if the underlying implementation does not support this.
- */
-uint64_t TextureContext::
-get_native_id() const {
-  return 0;
-}
-
 /**
  * Similar to get_native_id, but some implementations use a separate
  * identifier for the buffer object associated with buffer textures.

panda/src/gobj/textureContext.h

@@ -37,7 +37,8 @@ public:
 PUBLISHED:
   INLINE Texture *get_texture() const;
   INLINE int get_view() const;
-  virtual uint64_t get_native_id() const;
+
+  //virtual uint64_t get_native_id() const;
   virtual uint64_t get_native_buffer_id() const;
 
   INLINE bool was_modified() const;