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android/tools/android-osx/build-tools/19.1.0/renderscript/include/rs_mesh.rsh

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+/*
+ * Copyright (C) 2012 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+/** @file rs_mesh.rsh
+ *  \brief Mesh routines
+ *
+ *
+ */
+
+#ifndef __RS_MESH_RSH__
+#define __RS_MESH_RSH__
+
+// New API's
+#if (defined(RS_VERSION) && (RS_VERSION >= 16))
+
+/**
+ * Returns the number of allocations in the mesh that contain
+ * vertex data
+ *
+ * @param m mesh to get data from
+ * @return number of allocations in the mesh that contain vertex
+ *         data
+ */
+extern uint32_t __attribute__((overloadable))
+    rsgMeshGetVertexAllocationCount(rs_mesh m);
+
+/**
+ * Meshes could have multiple index sets, this function returns
+ * the number.
+ *
+ * @param m mesh to get data from
+ * @return number of primitive groups in the mesh. This would
+ *         include simple primitives as well as allocations
+ *         containing index data
+ */
+extern uint32_t __attribute__((overloadable))
+    rsgMeshGetPrimitiveCount(rs_mesh m);
+
+/**
+ * Returns an allocation that is part of the mesh and contains
+ * vertex data, e.g. positions, normals, texcoords
+ *
+ * @param m mesh to get data from
+ * @param index index of the vertex allocation
+ * @return allocation containing vertex data
+ */
+extern rs_allocation __attribute__((overloadable))
+    rsgMeshGetVertexAllocation(rs_mesh m, uint32_t index);
+
+/**
+ * Returns an allocation containing index data or a null
+ * allocation if only the primitive is specified
+ *
+ * @param m mesh to get data from
+ * @param index index of the index allocation
+ * @return allocation containing index data
+ */
+extern rs_allocation __attribute__((overloadable))
+    rsgMeshGetIndexAllocation(rs_mesh m, uint32_t index);
+
+/**
+ * Returns the primitive describing how a part of the mesh is
+ * rendered
+ *
+ * @param m mesh to get data from
+ * @param index index of the primitive
+ * @return primitive describing how the mesh is rendered
+ */
+extern rs_primitive __attribute__((overloadable))
+    rsgMeshGetPrimitive(rs_mesh m, uint32_t index);
+
+#endif // (defined(RS_VERSION) && (RS_VERSION >= 16))
+
+#endif // __RS_MESH_RSH__
+