From 3dfe2108cfab31ba3ee5527e217d0d8e99a51162 Mon Sep 17 00:00:00 2001
From: git perforce import user <a@b>
Date: Tue, 25 Oct 2016 12:29:14 -0600
Subject: Initial commit: PhysX 3.4.0 Update @ 21294896 APEX 1.4.0 Update @
 21275617

[CL 21300167]
---
 .../framework/src/ApexCustomBufferIterator.cpp     | 107 +++++++++++++++++++++
 1 file changed, 107 insertions(+)
 create mode 100644 APEX_1.4/framework/src/ApexCustomBufferIterator.cpp

(limited to 'APEX_1.4/framework/src/ApexCustomBufferIterator.cpp')

diff --git a/APEX_1.4/framework/src/ApexCustomBufferIterator.cpp b/APEX_1.4/framework/src/ApexCustomBufferIterator.cpp
new file mode 100644
index 00000000..c472c388
--- /dev/null
+++ b/APEX_1.4/framework/src/ApexCustomBufferIterator.cpp
@@ -0,0 +1,107 @@
+/*
+ * Copyright (c) 2008-2015, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * NVIDIA CORPORATION and its licensors retain all intellectual property
+ * and proprietary rights in and to this software, related documentation
+ * and any modifications thereto.  Any use, reproduction, disclosure or
+ * distribution of this software and related documentation without an express
+ * license agreement from NVIDIA CORPORATION is strictly prohibited.
+ */
+
+
+#include "ApexCustomBufferIterator.h"
+#include "PsString.h"
+
+namespace nvidia
+{
+namespace apex
+{
+
+ApexCustomBufferIterator::ApexCustomBufferIterator() :
+	mData(NULL),
+	mElemSize(0),
+	mMaxTriangles(0)
+{
+}
+
+void ApexCustomBufferIterator::setData(void* data, uint32_t elemSize, uint32_t maxTriangles)
+{
+	mData = (uint8_t*)data;
+	mElemSize = elemSize;
+	mMaxTriangles = maxTriangles;
+}
+
+void ApexCustomBufferIterator::addCustomBuffer(const char* name, RenderDataFormat::Enum format, uint32_t offset)
+{
+	CustomBuffer buffer;
+	buffer.name = name;
+	buffer.offset = offset;
+	buffer.format = format;
+
+	mCustomBuffers.pushBack(buffer);
+}
+void* ApexCustomBufferIterator::getVertex(uint32_t triangleIndex, uint32_t vertexIndex) const
+{
+	if (mData == NULL || triangleIndex >= mMaxTriangles)
+	{
+		return NULL;
+	}
+
+	return mData + mElemSize * (triangleIndex * 3 + vertexIndex);
+}
+int32_t ApexCustomBufferIterator::getAttributeIndex(const char* attributeName) const
+{
+	if (attributeName == NULL || attributeName[0] == 0)
+	{
+		return -1;
+	}
+
+	for (uint32_t i = 0; i < mCustomBuffers.size(); i++)
+	{
+		if (nvidia::strcmp(mCustomBuffers[i].name, attributeName) == 0)
+		{
+			return (int32_t)i;
+		}
+	}
+	return -1;
+}
+void* ApexCustomBufferIterator::getVertexAttribute(uint32_t triangleIndex, uint32_t vertexIndex, const char* attributeName, RenderDataFormat::Enum& outFormat) const
+{
+	outFormat = RenderDataFormat::UNSPECIFIED;
+
+	uint8_t* elementData = (uint8_t*)getVertex(triangleIndex, vertexIndex);
+	if (elementData == NULL)
+	{
+		return NULL;
+	}
+
+
+	for (uint32_t i = 0; i < mCustomBuffers.size(); i++)
+	{
+		if (nvidia::strcmp(mCustomBuffers[i].name, attributeName) == 0)
+		{
+			outFormat = mCustomBuffers[i].format;
+			return elementData + mCustomBuffers[i].offset;
+		}
+	}
+	return NULL;
+}
+
+void* ApexCustomBufferIterator::getVertexAttribute(uint32_t triangleIndex, uint32_t vertexIndex, uint32_t attributeIndex, RenderDataFormat::Enum& outFormat, const char*& outName) const
+{
+	outFormat = RenderDataFormat::UNSPECIFIED;
+	outName = NULL;
+
+	uint8_t* elementData = (uint8_t*)getVertex(triangleIndex, vertexIndex);
+	if (elementData == NULL || attributeIndex >= mCustomBuffers.size())
+	{
+		return NULL;
+	}
+
+	outName = mCustomBuffers[attributeIndex].name;
+	outFormat = mCustomBuffers[attributeIndex].format;
+	return elementData + mCustomBuffers[attributeIndex].offset;
+}
+
+}
+} // end namespace nvidia::apex
-- 
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