axmol/cocos/2d/renderer/CCNewSprite.cpp

/****************************************************************************
 Copyright (c) 2013 cocos2d-x.org

 http://www.cocos2d-x.org

 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, sublicense, 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 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 NONINFRINGEMENT. IN NO EVENT SHALL THE
 AUTHORS OR COPYRIGHT HOLDERS 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.
 ****************************************************************************/

#include "CCNewSprite.h"
#include "Renderer.h"
#include "Frustum.h"
#include "CCDirector.h"
#include "QuadCommand.h"

NS_CC_BEGIN

#if CC_SPRITEBATCHNODE_RENDER_SUBPIXEL
#define RENDER_IN_SUBPIXEL
#else
#define RENDER_IN_SUBPIXEL(__ARGS__) (ceil(__ARGS__))
#endif

NewSprite* NewSprite::create()
{
    NewSprite* sprite = new NewSprite();
    if(sprite && sprite->init())
    {
        sprite->autorelease();
        return sprite;
    }
    CC_SAFE_DELETE(sprite);
    return NULL;
}

NewSprite* NewSprite::create(const char *filename)
{
    NewSprite* sprite = new NewSprite();
    if(sprite && sprite->initWithFile(filename))
    {
        sprite->autorelease();
        return sprite;
    }
    CC_SAFE_DELETE(sprite);
    return NULL;
}

NewSprite::NewSprite()
:Sprite()
{

}

NewSprite::~NewSprite(void)
{
}

bool NewSprite::initWithTexture(Texture2D *texture, const Rect &rect, bool rotated)
{
    bool result = Sprite::initWithTexture(texture, rect, rotated);
    _recursiveDirty = true;
    setDirty(true);
    return result;
}

void NewSprite::updateQuadVertices()
{

#ifdef CC_USE_PHYSICS
    updatePhysicsTransform();
    setDirty(true);
#endif

    //TODO optimize the performance cache affineTransformation

    // recalculate matrix only if it is dirty
    if(isDirty())
    {

//        if( ! _parent || _parent == (Node*)_batchNode )
//        {
//            _transformToBatch = getNodeToParentTransform();
//        }
//        else
//        {
//            CCASSERT( dynamic_cast<NewSprite*>(_parent), "Logic error in Sprite. Parent must be a Sprite");
//            _transformToBatch = AffineTransformConcat( getNodeToParentTransform() , static_cast<NewSprite*>(_parent)->_transformToBatch );
//        }
        
        //TODO optimize this transformation, should use parent's transformation instead
        _transformToBatch = getNodeToWorldTransform();
        
        //
        // calculate the Quad based on the Affine Matrix
        //
        Rect newRect = RectApplyTransform(_rect, _transformToBatch);

        _quad.bl.vertices = Vertex3F( RENDER_IN_SUBPIXEL(newRect.getMinX()), RENDER_IN_SUBPIXEL(newRect.getMinY()), _vertexZ );
        _quad.br.vertices = Vertex3F( RENDER_IN_SUBPIXEL(newRect.getMaxX()), RENDER_IN_SUBPIXEL(newRect.getMinY()), _vertexZ );
        _quad.tl.vertices = Vertex3F( RENDER_IN_SUBPIXEL(newRect.getMinX()), RENDER_IN_SUBPIXEL(newRect.getMaxY()), _vertexZ );
        _quad.tr.vertices = Vertex3F( RENDER_IN_SUBPIXEL(newRect.getMaxX()), RENDER_IN_SUBPIXEL(newRect.getMaxY()), _vertexZ );

        _recursiveDirty = false;
        setDirty(false);
    }
}

void NewSprite::draw(void)
{
    kmMat4 mv;
    kmGLGetMatrix(KM_GL_MODELVIEW, &mv);
    //TODO implement z order
    QuadCommand* renderCommand = QuadCommand::getCommandPool().generateCommand();
    renderCommand->init(0, _vertexZ, _texture->getName(), _shaderProgram, _blendFunc, &_quad, 1, mv);

    if(!culling())
    {
        renderCommand->releaseToCommandPool();
        return;
    }

    Director::getInstance()->getRenderer()->addCommand(renderCommand);
}

bool NewSprite::culling() const
{
    Frustum* frustum = Director::getInstance()->getFrustum();
    //TODO optimize this transformation, should use parent's transformation instead
    kmMat4 worldTM = getNodeToWorldTransform();
    //generate aabb

    //
    // calculate the Quad based on the Affine Matrix
    //
    Rect newRect = RectApplyTransform(_rect, worldTM);

    kmVec3 point = {newRect.getMinX(), newRect.getMinY(), _vertexZ};
    
    AABB aabb(point,point);
    point = {newRect.getMaxX(), newRect.getMinY(), _vertexZ};
    aabb.expand(point);
    point = {newRect.getMinX(), newRect.getMaxY(), _vertexZ};
    aabb.expand(point);
    point = {newRect.getMaxX(), newRect.getMaxY(), _vertexZ};
    aabb.expand(point);
    
    return Frustum::IntersectResult::OUTSIDE !=frustum->intersectAABB(aabb);
}


NS_CC_END