mirror of https://github.com/axmolengine/axmol.git
546 lines
14 KiB
C++
546 lines
14 KiB
C++
/*
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* Copyright (c) 2010-2011 cocos2d-x.org
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* Copyright (C) 2009 Matt Oswald
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* Copyright (c) 2009-2010 Ricardo Quesada
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* Copyright (c) 2011 Zynga Inc.
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* Copyright (c) 2011 Marco Tillemans
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*
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* http://www.cocos2d-x.org
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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*/
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#include "CCParticleBatchNode.h"
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#include "CCTextureCache.h"
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#include "CCTextureAtlas.h"
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#include "ccConfig.h"
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#include "ccMacros.h"
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#include "effects/CCGrid.h"
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#include "CCPointExtension.h"
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#include "CCParticleSystem.h"
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#include "CCShaderCache.h"
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#include "CCGLProgram.h"
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#include "ccGLStateCache.h"
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#include "support/base64.h"
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#include "support/zip_support/ZipUtils.h"
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#include "CCFileUtils.h"
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#include "kazmath/GL/matrix.h"
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NS_CC_BEGIN
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#define kCCParticleDefaultCapacity 500
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CCParticleBatchNode::CCParticleBatchNode()
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: m_pTextureAtlas(NULL)
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{
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}
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CCParticleBatchNode::~CCParticleBatchNode()
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{
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CC_SAFE_RELEASE(m_pTextureAtlas);
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}
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/*
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* creation with CCTexture2D
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*/
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CCParticleBatchNode* CCParticleBatchNode::batchNodeWithTexture(CCTexture2D * tex)
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{
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CCParticleBatchNode * p = new CCParticleBatchNode();
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if( p && p->initWithTexture(tex, kCCParticleDefaultCapacity))
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{
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p->autorelease();
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return p;
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}
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CC_SAFE_DELETE(p);
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return NULL;
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}
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CCParticleBatchNode* CCParticleBatchNode::batchNodeWithTexture(CCTexture2D *tex, unsigned int capacity)
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{
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CCParticleBatchNode * p = new CCParticleBatchNode();
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if( p && p->initWithTexture(tex, capacity))
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{
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p->autorelease();
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return p;
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}
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CC_SAFE_DELETE(p);
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return NULL;
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}
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/*
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* creation with File Image
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*/
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CCParticleBatchNode* CCParticleBatchNode::batchNodeWithFile(const char* imageFile, unsigned int capacity)
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{
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CCParticleBatchNode * p = new CCParticleBatchNode();
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if( p && p->initWithFile(imageFile, capacity))
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{
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p->autorelease();
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return p;
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}
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CC_SAFE_DELETE(p);
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return NULL;
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}
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CCParticleBatchNode* CCParticleBatchNode::batchNodeWithFile(const char* imageFile)
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{
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CCParticleBatchNode * p = new CCParticleBatchNode();
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if( p && p->initWithFile(imageFile, kCCParticleDefaultCapacity))
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{
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p->autorelease();
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return p;
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}
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CC_SAFE_DELETE(p);
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return NULL;
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}
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/*
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* init with CCTexture2D
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*/
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bool CCParticleBatchNode::initWithTexture(CCTexture2D *tex, unsigned int capacity)
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{
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m_pTextureAtlas = new CCTextureAtlas();
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m_pTextureAtlas->initWithTexture(tex, capacity);
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// no lazy alloc in this node
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m_pChildren = new CCArray();
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m_pChildren->initWithCapacity(capacity);
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m_tBlendFunc.src = CC_BLEND_SRC;
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m_tBlendFunc.dst = CC_BLEND_DST;
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setShaderProgram(CCShaderCache::sharedShaderCache()->programForKey(kCCShader_PositionTextureColor));
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return true;
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}
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/*
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* init with FileImage
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*/
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bool CCParticleBatchNode::initWithFile(const char* fileImage, unsigned int capacity)
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{
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CCTexture2D *tex = CCTextureCache::sharedTextureCache()->addImage(fileImage);
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return initWithTexture(tex, capacity);
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}
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// CCParticleBatchNode - composition
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// override visit.
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// Don't call visit on it's children
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void CCParticleBatchNode::visit()
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{
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// CAREFUL:
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// This visit is almost identical to CCNode#visit
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// with the exception that it doesn't call visit on it's children
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//
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// The alternative is to have a void CCSprite#visit, but
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// although this is less mantainable, is faster
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//
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if (!m_bIsVisible)
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{
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return;
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}
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kmGLPushMatrix();
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if ( m_pGrid && m_pGrid->isActive())
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{
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m_pGrid->beforeDraw();
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transformAncestors();
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}
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transform();
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draw();
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if ( m_pGrid && m_pGrid->isActive())
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{
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m_pGrid->afterDraw(this);
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}
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kmGLPopMatrix();
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}
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// override addChild:
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void CCParticleBatchNode::addChild(CCNode * child)
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{
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CCNode::addChild(child);
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}
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void CCParticleBatchNode::addChild(CCNode * child, int zOrder)
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{
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CCNode::addChild(child, zOrder);
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}
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void CCParticleBatchNode::addChild(CCNode * child, int zOrder, int tag)
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{
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CCAssert( child != NULL, "Argument must be non-NULL");
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CCAssert( dynamic_cast<CCParticleSystem*>(child) != NULL, "CCParticleBatchNode only supports CCQuadParticleSystems as children");
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CCParticleSystem* pChild = (CCParticleSystem*)child;
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CCAssert( pChild->getTexture()->getName() == m_pTextureAtlas->getTexture()->getName(), "CCParticleSystem is not using the same texture id");
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// If this is the 1st children, then copy blending function
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if( m_pChildren->count() == 0 )
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{
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setBlendFunc(pChild->getBlendFunc());
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}
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CCAssert( m_tBlendFunc.src == pChild->getBlendFunc().src && m_tBlendFunc.dst == pChild->getBlendFunc().dst, "Can't add a PaticleSystem that uses a differnt blending function");
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//no lazy sorting, so don't call super addChild, call helper instead
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unsigned int pos = addChildHelper(pChild,zOrder,tag);
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//get new atlasIndex
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unsigned int atlasIndex = 0;
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if (pos != 0)
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{
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CCParticleSystem* p = (CCParticleSystem*)m_pChildren->objectAtIndex(pos-1);
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atlasIndex = p->getAtlasIndex() + p->getTotalParticles();
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}
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else
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{
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atlasIndex = 0;
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}
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insertChild(pChild, atlasIndex);
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// update quad info
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pChild->setBatchNode(this);
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}
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// don't use lazy sorting, reordering the particle systems quads afterwards would be too complex
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// XXX research whether lazy sorting + freeing current quads and calloc a new block with size of capacity would be faster
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// XXX or possibly using vertexZ for reordering, that would be fastest
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// this helper is almost equivalent to CCNode's addChild, but doesn't make use of the lazy sorting
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unsigned int CCParticleBatchNode::addChildHelper(CCParticleSystem* child, int z, int aTag)
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{
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CCAssert( child != NULL, "Argument must be non-nil");
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CCAssert( child->getParent() == NULL, "child already added. It can't be added again");
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if( ! m_pChildren )
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{
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m_pChildren = new CCArray();
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m_pChildren->initWithCapacity(4);
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}
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//don't use a lazy insert
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unsigned int pos = searchNewPositionInChildrenForZ(z);
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m_pChildren->insertObject(child, pos);
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child->setTag(aTag);
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child->_setZOrder(z);
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child->setParent(this);
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if( m_bIsRunning )
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{
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child->onEnter();
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child->onEnterTransitionDidFinish();
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}
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return pos;
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}
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// Reorder will be done in this function, no "lazy" reorder to particles
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void CCParticleBatchNode::reorderChild(CCNode * child, int zOrder)
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{
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CCAssert( child != NULL, "Child must be non-NULL");
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CCAssert( dynamic_cast<CCParticleSystem*>(child) != NULL, "CCParticleBatchNode only supports CCQuadParticleSystems as children");
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CCAssert( m_pChildren->containsObject(child), "Child doesn't belong to batch" );
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CCParticleSystem* pChild = (CCParticleSystem*)(child);
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if( zOrder == child->getZOrder() )
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{
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return;
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}
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// no reordering if only 1 child
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if( m_pChildren->count() > 1)
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{
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unsigned int newIndex = 0, oldIndex = 0;
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getCurrentIndex(&oldIndex, &newIndex, pChild, zOrder);
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if( oldIndex != newIndex )
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{
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// reorder m_pChildren->array
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pChild->retain();
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m_pChildren->removeObjectAtIndex(oldIndex);
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m_pChildren->insertObject(pChild, newIndex);
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pChild->release();
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// save old altasIndex
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unsigned int oldAtlasIndex = pChild->getAtlasIndex();
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// update atlas index
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updateAllAtlasIndexes();
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// Find new AtlasIndex
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unsigned int newAtlasIndex = 0;
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for( unsigned int i=0;i < m_pChildren->count();i++)
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{
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CCParticleSystem* pNode = (CCParticleSystem*)m_pChildren->objectAtIndex(i);
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if( pNode == pChild )
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{
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newAtlasIndex = pChild->getAtlasIndex();
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break;
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}
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}
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// reorder textureAtlas quads
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m_pTextureAtlas->moveQuadsFromIndex(oldAtlasIndex, pChild->getTotalParticles(), newAtlasIndex);
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pChild->updateWithNoTime();
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}
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}
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pChild->_setZOrder(zOrder);
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}
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void CCParticleBatchNode::getCurrentIndex(unsigned int* oldIndex, unsigned int* newIndex, CCNode* child, int z)
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{
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bool foundCurrentIdx = false;
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bool foundNewIdx = false;
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int minusOne = 0;
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unsigned int count = m_pChildren->count();
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for( unsigned int i=0; i < count; i++ )
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{
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CCNode* pNode = (CCNode *)m_pChildren->objectAtIndex(i);
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// new index
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if( pNode->getZOrder() > z && ! foundNewIdx )
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{
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*newIndex = i;
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foundNewIdx = true;
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if( foundCurrentIdx && foundNewIdx )
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{
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break;
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}
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}
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// current index
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if( child == pNode )
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{
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*oldIndex = i;
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foundCurrentIdx = true;
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if( ! foundNewIdx )
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{
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minusOne = -1;
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}
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if( foundCurrentIdx && foundNewIdx )
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{
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break;
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}
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}
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}
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if( ! foundNewIdx )
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{
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*newIndex = count;
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}
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*newIndex += minusOne;
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}
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unsigned int CCParticleBatchNode::searchNewPositionInChildrenForZ(int z)
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{
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unsigned int count = m_pChildren->count();
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for( unsigned int i=0; i < count; i++ )
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{
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CCNode *child = (CCNode *)m_pChildren->objectAtIndex(i);
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if (child->getZOrder() > z)
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{
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return i;
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}
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}
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return count;
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}
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// override removeChild:
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void CCParticleBatchNode::removeChild(CCNode* child, bool cleanup)
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{
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// explicit nil handling
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if (child == NULL)
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{
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return;
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}
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CCAssert( dynamic_cast<CCParticleSystem*>(child) != NULL, "CCParticleBatchNode only supports CCQuadParticleSystems as children");
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CCAssert(m_pChildren->containsObject(child), "CCParticleBatchNode doesn't contain the sprite. Can't remove it");
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CCParticleSystem* pChild = (CCParticleSystem*)child;
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CCNode::removeChild(pChild, cleanup);
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// remove child helper
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m_pTextureAtlas->removeQuadsAtIndex(pChild->getAtlasIndex(), pChild->getTotalParticles());
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// after memmove of data, empty the quads at the end of array
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m_pTextureAtlas->fillWithEmptyQuadsFromIndex(m_pTextureAtlas->getTotalQuads(), pChild->getTotalParticles());
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// paticle could be reused for self rendering
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pChild->setBatchNode(NULL);
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updateAllAtlasIndexes();
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}
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void CCParticleBatchNode::removeChildAtIndex(unsigned int index, bool doCleanup)
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{
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removeChild((CCParticleSystem *)m_pChildren->objectAtIndex(index),doCleanup);
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}
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void CCParticleBatchNode::removeAllChildrenWithCleanup(bool doCleanup)
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{
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arrayMakeObjectsPerformSelectorWithObject(m_pChildren, setBatchNode, NULL, CCParticleSystem*);
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CCNode::removeAllChildrenWithCleanup(doCleanup);
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m_pTextureAtlas->removeAllQuads();
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}
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void CCParticleBatchNode::draw(void)
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{
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CC_PROFILER_STOP("CCParticleBatchNode - draw");
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if( m_pTextureAtlas->getTotalQuads() == 0 )
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{
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return;
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}
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CC_NODE_DRAW_SETUP();
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ccGLBlendFunc( m_tBlendFunc.src, m_tBlendFunc.dst );
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m_pTextureAtlas->drawQuads();
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CC_PROFILER_STOP("CCParticleBatchNode - draw");
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}
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void CCParticleBatchNode::increaseAtlasCapacityTo(unsigned int quantity)
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{
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CCLOG("cocos2d: CCParticleBatchNode: resizing TextureAtlas capacity from [%lu] to [%lu].",
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(long)m_pTextureAtlas->getCapacity(),
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(long)quantity);
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if( ! m_pTextureAtlas->resizeCapacity(quantity) ) {
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// serious problems
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CCLOG("cocos2d: WARNING: Not enough memory to resize the atlas");
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CCAssert(false,"XXX: CCParticleBatchNode #increaseAtlasCapacity SHALL handle this assert");
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}
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}
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//sets a 0'd quad into the quads array
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void CCParticleBatchNode::disableParticle(unsigned int particleIndex)
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{
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ccV3F_C4B_T2F_Quad* quad = &((m_pTextureAtlas->getQuads())[particleIndex]);
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quad->br.vertices.x = quad->br.vertices.y = quad->tr.vertices.x = quad->tr.vertices.y = quad->tl.vertices.x = quad->tl.vertices.y = quad->bl.vertices.x = quad->bl.vertices.y = 0.0f;
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}
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// CCParticleBatchNode - add / remove / reorder helper methods
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// add child helper
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void CCParticleBatchNode::insertChild(CCParticleSystem* pSystem, unsigned int index)
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{
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pSystem->setAtlasIndex(index);
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if(m_pTextureAtlas->getTotalQuads() + pSystem->getTotalParticles() > m_pTextureAtlas->getCapacity())
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{
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increaseAtlasCapacityTo(m_pTextureAtlas->getTotalQuads() + pSystem->getTotalParticles());
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// after a realloc empty quads of textureAtlas can be filled with gibberish (realloc doesn't perform calloc), insert empty quads to prevent it
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m_pTextureAtlas->fillWithEmptyQuadsFromIndex(m_pTextureAtlas->getCapacity() - pSystem->getTotalParticles(), pSystem->getTotalParticles());
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}
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// make room for quads, not necessary for last child
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if (pSystem->getAtlasIndex() + pSystem->getTotalParticles() != m_pTextureAtlas->getTotalQuads())
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{
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m_pTextureAtlas->moveQuadsFromIndex(index, index+pSystem->getTotalParticles());
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}
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// increase totalParticles here for new particles, update method of particlesystem will fill the quads
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m_pTextureAtlas->increaseTotalQuadsWith(pSystem->getTotalParticles());
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updateAllAtlasIndexes();
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}
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//rebuild atlas indexes
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void CCParticleBatchNode::updateAllAtlasIndexes()
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{
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CCObject *pObj = NULL;
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unsigned int index = 0;
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CCARRAY_FOREACH(m_pChildren,pObj)
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{
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CCParticleSystem* child = (CCParticleSystem*)pObj;
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child->setAtlasIndex(index);
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index += child->getTotalParticles();
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}
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}
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// CCParticleBatchNode - CocosNodeTexture protocol
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void CCParticleBatchNode::updateBlendFunc(void)
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{
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if( ! m_pTextureAtlas->getTexture()->getHasPremultipliedAlpha()) {
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m_tBlendFunc.src = GL_SRC_ALPHA;
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m_tBlendFunc.dst = GL_ONE_MINUS_SRC_ALPHA;
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}
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}
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void CCParticleBatchNode::setTexture(CCTexture2D* texture)
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{
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m_pTextureAtlas->setTexture(texture);
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// If the new texture has No premultiplied alpha, AND the blendFunc hasn't been changed, then update it
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if( texture && ! texture->getHasPremultipliedAlpha() && ( m_tBlendFunc.src == CC_BLEND_SRC && m_tBlendFunc.dst == CC_BLEND_DST ) )
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{
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m_tBlendFunc.src = GL_SRC_ALPHA;
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m_tBlendFunc.dst = GL_ONE_MINUS_SRC_ALPHA;
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}
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}
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CCTexture2D* CCParticleBatchNode::getTexture(void)
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{
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return m_pTextureAtlas->getTexture();
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}
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void CCParticleBatchNode::setBlendFunc(ccBlendFunc blendFunc)
|
|
{
|
|
m_tBlendFunc = blendFunc;
|
|
}
|
|
// returns the blending function used for the texture
|
|
ccBlendFunc CCParticleBatchNode::getBlendFunc(void)
|
|
{
|
|
return m_tBlendFunc;
|
|
}
|
|
|
|
NS_CC_END
|