////  Batch.cpp//  interface/src/gpu////  Created by Sam Gateau on 10/14/2014.//  Copyright 2014 High Fidelity, Inc.////  Distributed under the Apache License, Version 2.0.//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html//#include "Batch.h" #include <QDebug> #define ADD_COMMAND(call) _commands.push_back(COMMAND_##call); _commandOffsets.push_back(_params.size()); using namespace gpu; Batch::Batch() :    _commands(),    _commandOffsets(),    _params(),    _resources(),    _data(),    _buffers(),    _streamFormats(),    _transforms(){} Batch::~Batch() {} void Batch::clear() {    _commands.clear();    _commandOffsets.clear();    _params.clear();    _resources.clear();    _data.clear();    _buffers.clear();    _streamFormats.clear();    _transforms.clear();} uint32 Batch::cacheResource(Resource* res) {    uint32 offset = _resources.size();    _resources.push_back(ResourceCache(res));        return offset;} uint32 Batch::cacheResource(const void* pointer) {    uint32 offset = _resources.size();    _resources.push_back(ResourceCache(pointer));     return offset;} uint32 Batch::cacheData(uint32 size, const void* data) {    uint32 offset = _data.size();    uint32 nbBytes = size;    _data.resize(offset + nbBytes);    memcpy(_data.data() + offset, data, size);     return offset;} void Batch::draw(Primitive primitiveType, uint32 nbVertices, uint32 startVertex) {    ADD_COMMAND(draw);     _params.push_back(startVertex);    _params.push_back(nbVertices);    _params.push_back(primitiveType);} void Batch::drawIndexed(Primitive primitiveType, uint32 nbIndices, uint32 startIndex) {    ADD_COMMAND(drawIndexed);     _params.push_back(startIndex);    _params.push_back(nbIndices);    _params.push_back(primitiveType);} void Batch::drawInstanced(uint32 nbInstances, Primitive primitiveType, uint32 nbVertices, uint32 startVertex, uint32 startInstance) {    ADD_COMMAND(drawInstanced);     _params.push_back(startInstance);    _params.push_back(startVertex);    _params.push_back(nbVertices);    _params.push_back(primitiveType);    _params.push_back(nbInstances);} void Batch::drawIndexedInstanced(uint32 nbInstances, Primitive primitiveType, uint32 nbIndices, uint32 startIndex, uint32 startInstance) {    ADD_COMMAND(drawIndexedInstanced);     _params.push_back(startInstance);    _params.push_back(startIndex);    _params.push_back(nbIndices);    _params.push_back(primitiveType);    _params.push_back(nbInstances);} void Batch::setInputFormat(const Stream::FormatPointer& format) {    ADD_COMMAND(setInputFormat);     _params.push_back(_streamFormats.cache(format));} void Batch::setInputStream(Slot startChannel, const BufferStream& stream) {    if (stream.getNumBuffers()) {        const Buffers& buffers = stream.getBuffers();        const Offsets& offsets = stream.getOffsets();        const Offsets& strides = stream.getStrides();        for (unsigned int i = 0; i < buffers.size(); i++) {            setInputBuffer(startChannel + i, buffers[i], offsets[i], strides[i]);        }    }} void Batch::setInputBuffer(Slot channel, const BufferPointer& buffer, Offset offset, Offset stride) {    ADD_COMMAND(setInputBuffer);     _params.push_back(stride);    _params.push_back(offset);    _params.push_back(_buffers.cache(buffer));    _params.push_back(channel);} void Batch::setIndexBuffer(Type type, const BufferPointer& buffer, Offset offset) {    ADD_COMMAND(setIndexBuffer);     _params.push_back(offset);    _params.push_back(_buffers.cache(buffer));    _params.push_back(type);} void Batch::setModelTransform(const Transform& model) {    ADD_COMMAND(setModelTransform);     _params.push_back(_transforms.cache(model));} void Batch::setViewTransform(const Transform& view) {    ADD_COMMAND(setViewTransform);     _params.push_back(_transforms.cache(view));} void Batch::setProjectionTransform(const Transform& proj) {    ADD_COMMAND(setProjectionTransform);     _params.push_back(_transforms.cache(proj));}