+/**************************************************************************
+ *
+ * Copyright 2012 Jose Fonseca
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sub license,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * AUTHORS,
+ * AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+ * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
+ * OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ **************************************************************************/
+
+
+/*
+ * Auxiliary functions to compute the size of array/blob arguments.
+ */
+
+#ifndef _D3D_SIZE_HPP_
+#define _D3D_SIZE_HPP_
+
+
+/* We purposedly don't include any D3D header, so that this header can be used
+ * with all D3D versions. */
+
+#include "os.hpp"
+
+
+static inline size_t
+_vertexCount(D3DPRIMITIVETYPE PrimitiveType, UINT PrimitiveCount)
+{
+ switch (PrimitiveType) {
+ case D3DPT_POINTLIST:
+ return PrimitiveCount;
+ case D3DPT_LINELIST:
+ return PrimitiveCount*2;
+ case D3DPT_LINESTRIP:
+ return PrimitiveCount + 1;
+ case D3DPT_TRIANGLELIST:
+ return PrimitiveCount * 3;
+ case D3DPT_TRIANGLESTRIP:
+ return PrimitiveCount + 2;
+ case D3DPT_TRIANGLEFAN:
+ return PrimitiveCount + 1;
+ default:
+ os::log("apitrace: warning: %s: unknown D3DPRIMITIVETYPE %u\n", __FUNCTION__, PrimitiveType);
+ return 0;
+ }
+}
+
+
+static inline size_t
+_vertexDataSize(D3DPRIMITIVETYPE PrimitiveType, UINT PrimitiveCount, UINT VertexStride) {
+ return _vertexCount(PrimitiveType, PrimitiveCount) * VertexStride;
+}
+
+
+static inline size_t
+_indexDataSize(D3DPRIMITIVETYPE PrimitiveType, UINT PrimitiveCount, D3DFORMAT IndexDataFormat) {
+ UINT IndexStride;
+ switch (IndexDataFormat) {
+ case D3DFMT_INDEX16:
+ IndexStride = 2;
+ break;
+ case D3DFMT_INDEX32:
+ IndexStride = 4;
+ break;
+ default:
+ os::log("apitrace: warning: %s: unexpected index D3DFORMAT %u\n", __FUNCTION__, IndexDataFormat);
+ return 0;
+ }
+ return _vertexCount(PrimitiveType, PrimitiveCount) * IndexStride;
+}
+
+
+#endif /* _D3D_SIZE_HPP_ */