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| 1 | +// | |
| 2 | +// Stream.cpp | |
| 3 | +// interface/src/gpu | |
| 4 | +// | |
| 5 | +// Created by Sam Gateau on 10/29/2014. | |
| 6 | +// Copyright 2014 High Fidelity, Inc. | |
| 7 | +// | |
| 8 | +// Distributed under the Apache License, Version 2.0. | |
| 9 | +// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html | |
| 10 | +// | |
| 11 | + | |
| 12 | +#include "Stream.h" | |
| 13 | + | |
| 14 | +using namespace gpu; | |
| 15 | + | |
| 16 | +void StreamFormat::evaluateCache() { | |
| 17 | + _channels.clear(); | |
| 18 | + _elementTotalSize = 0; | |
| 19 | + for(AttributeMap::iterator it = _attributes.begin(); it != _attributes.end(); it++) { | |
| 20 | + Attribute& attrib = (*it).second; | |
| 21 | + Channel& channel = _channels[attrib._channel]; | |
| 22 | + channel._slots.push_back(attrib._slot); | |
| 23 | + channel._stride = std::max(channel._stride, attrib.getSize() + attrib._offset); | |
| 24 | + channel._netSize += attrib.getSize(); | |
| 25 | + _elementTotalSize += attrib.getSize(); | |
| 26 | + } | |
| 27 | +} | |
| 28 | + | |
| 29 | +bool StreamFormat::setAttribute(Slot slot, uint8 channel, Element element, uint32 offset, Frequency frequency) { | |
| 30 | + _attributes[slot] = Attribute(slot, channel, element, offset, frequency); | |
| 31 | + evaluateCache(); | |
| 32 | + return true; | |
| 33 | +} | |
| 34 | + | |
| 35 | +Stream::Stream() : | |
| 36 | + _buffers(), | |
| 37 | + _offsets() | |
| 38 | +{} | |
| 39 | + | |
| 40 | +Stream::~Stream() | |
| 41 | +{ | |
| 42 | + _buffers.clear(); | |
| 43 | + _offsets.clear(); | |
| 44 | +} | |
| 45 | + | |
| 46 | +void Stream::addBuffer(BufferPtr& buffer, uint32 offset, uint32 stride) { | |
| 47 | + _buffers.push_back(buffer); | |
| 48 | + _offsets.push_back(offset); | |
| 49 | + _strides.push_back(stride); | |
| 50 | +} | |