Update cgltf.h

src/external/cgltf.h

@@ -1,7 +1,7 @@
 /**
  * cgltf - a single-file glTF 2.0 parser written in C99.
  *
- * Version: 1.13
+ * Version: 1.14
  *
  * Website: https://github.com/jkuhlmann/cgltf
  *
@@ -395,6 +395,8 @@ typedef struct cgltf_texture
 	cgltf_sampler* sampler;
 	cgltf_bool has_basisu;
 	cgltf_image* basisu_image;
+	cgltf_bool has_webp;
+	cgltf_image* webp_image;
 	cgltf_extras extras;
 	cgltf_size extensions_count;
 	cgltf_extension* extensions;
@@ -1697,7 +1699,20 @@ cgltf_result cgltf_validate(cgltf_data* data)
 	{
 		if (data->nodes[i].weights && data->nodes[i].mesh)
 		{
-			CGLTF_ASSERT_IF (data->nodes[i].mesh->primitives_count && data->nodes[i].mesh->primitives[0].targets_count != data->nodes[i].weights_count, cgltf_result_invalid_gltf);
+			CGLTF_ASSERT_IF(data->nodes[i].mesh->primitives_count && data->nodes[i].mesh->primitives[0].targets_count != data->nodes[i].weights_count, cgltf_result_invalid_gltf);
+		}
+
+		if (data->nodes[i].has_mesh_gpu_instancing)
+		{
+			CGLTF_ASSERT_IF(data->nodes[i].mesh == NULL, cgltf_result_invalid_gltf);
+			CGLTF_ASSERT_IF(data->nodes[i].mesh_gpu_instancing.attributes_count == 0, cgltf_result_invalid_gltf);
+
+			cgltf_accessor* first = data->nodes[i].mesh_gpu_instancing.attributes[0].data;
+
+			for (cgltf_size k = 0; k < data->nodes[i].mesh_gpu_instancing.attributes_count; ++k)
+			{
+				CGLTF_ASSERT_IF(data->nodes[i].mesh_gpu_instancing.attributes[k].data->count != first->count, cgltf_result_invalid_gltf);
+			}
 		}
 	}
 
@@ -4538,6 +4553,34 @@ static int cgltf_parse_json_texture(cgltf_options* options, jsmntok_t const* tok
 						}
 					}
 				}
+				else if (cgltf_json_strcmp(tokens + i, json_chunk, "EXT_texture_webp") == 0)
+				{
+					out_texture->has_webp = 1;
+					++i;
+					CGLTF_CHECK_TOKTYPE(tokens[i], JSMN_OBJECT);
+					int num_properties = tokens[i].size;
+					++i;
+
+					for (int t = 0; t < num_properties; ++t)
+					{
+						CGLTF_CHECK_KEY(tokens[i]);
+
+						if (cgltf_json_strcmp(tokens + i, json_chunk, "source") == 0)
+						{
+							++i;
+							out_texture->webp_image = CGLTF_PTRINDEX(cgltf_image, cgltf_json_to_int(tokens + i, json_chunk));
+							++i;
+						}
+						else
+						{
+							i = cgltf_skip_json(tokens, i + 1);
+						}
+						if (i < 0)
+						{
+							return i;
+						}
+					}
+				}
 				else
 				{
 					i = cgltf_parse_json_unprocessed_extension(options, tokens, i, json_chunk, &(out_texture->extensions[out_texture->extensions_count++]));
@@ -6548,6 +6591,7 @@ static int cgltf_fixup_pointers(cgltf_data* data)
 	{
 		CGLTF_PTRFIXUP(data->textures[i].image, data->images, data->images_count);
 		CGLTF_PTRFIXUP(data->textures[i].basisu_image, data->images, data->images_count);
+		CGLTF_PTRFIXUP(data->textures[i].webp_image, data->images, data->images_count);
 		CGLTF_PTRFIXUP(data->textures[i].sampler, data->samplers, data->samplers_count);
 	}