ShaderMultiTexture类 参考

#include <ShaderTest.h>

类 ShaderMultiTexture 继承关系图:

ShaderMultiTexture 的协作图:

Public 成员函数
	CREATE_FUNC (ShaderMultiTexture)
	ShaderMultiTexture ()
cocos2d::ui::Slider *	createSliderCtl ()
void	changeTexture (cocos2d::Ref *)
virtual std::string	title () const override
virtual std::string	subtitle () const override
virtual bool	init () override
Public 成员函数 继承自 TestCase
	TestCase ()
	~TestCase ()
virtual Type	getTestType () const
virtual float	getDuration () const
virtual std::string	getExpectedOutput () const
virtual std::string	getActualOutput () const
virtual void	restartTestCallback (cocos2d::Ref *sender)
virtual void	nextTestCallback (cocos2d::Ref *sender)
virtual void	priorTestCallback (cocos2d::Ref *sender)
virtual void	onBackCallback (cocos2d::Ref *sender)
void	setTestSuite (TestSuite *testSuite)
TestSuite *	getTestSuite () const
float	getRunTime () const
void	setTestCaseName (const std::string &name)
std::string	getTestCaseName () const
const cocos2d::Label *	getSubtitleLable () const
const cocos2d::MenuItemImage *	getRestartTestItem () const
virtual void	onEnter () override

Public 属性
int	_changedTextureId
cocos2d::Sprite *	_sprite
Public 属性 继承自 TestCase
CC_CONSTRUCTOR_ACCESS	__pad0__: virtual bool init() override

静态 Private 属性
static const int	rightSpriteTag = 2014

额外继承的成员函数
Public 类型 继承自 TestCase
enum class	Type { ROBUSTNESS , UNIT , GRAPHICAL_STATIC , MANUAL }
Protected 属性 继承自 TestCase
cocos2d::MenuItemImage *	_priorTestItem
cocos2d::MenuItemImage *	_restartTestItem
cocos2d::MenuItemImage *	_nextTestItem
cocos2d::Label *	_titleLabel
cocos2d::Label *	_subtitleLabel

详细描述

在文件 ShaderTest.h 第 207 行定义.

构造及析构函数说明

ShaderMultiTexture()

ShaderMultiTexture::ShaderMultiTexture

(

)

在文件 ShaderTest.cpp 第 736 行定义.

                                      :_changedTextureId(0)
{
}

成员函数说明

changeTexture()

void ShaderMultiTexture::changeTexture

(

cocos2d::Ref *

)

在文件 ShaderTest.cpp 第 826 行定义.

{
    static const int textureFilesCount = 3;
    static const std::string textureFiles[textureFilesCount] = {
        "Images/grossini.png",
        "Images/grossinis_sister1.png",
        "Images/grossinis_sister2.png"
    };
    auto texture = Director::getInstance()->getTextureCache()->addImage(textureFiles[_changedTextureId++ % textureFilesCount]);
    Sprite* right = dynamic_cast<Sprite*>(getChildByTag(rightSpriteTag));
    right->setTexture(texture);
    auto programState = _sprite->getProgramState();
    SET_TEXTURE(programState, "u_texture1", 1, right->getTexture()->getBackendTexture());
}

引用了 _changedTextureId, _sprite, rightSpriteTag , 以及 SET_TEXTURE.

被这些函数引用 init().

这是这个函数的调用关系图:

CREATE_FUNC()

ShaderMultiTexture::CREATE_FUNC

(

ShaderMultiTexture

)

createSliderCtl()

ui::Slider * ShaderMultiTexture::createSliderCtl

(

)

在文件 ShaderTest.cpp 第 750 行定义.

{
    auto screenSize = Director::getInstance()->getWinSize();
 
    ui::Slider* slider = ui::Slider::create();
    slider->loadBarTexture("cocosui/sliderTrack.png");
    slider->loadSlidBallTextures("cocosui/sliderThumb.png", "cocosui/sliderThumb.png", "");
    slider->loadProgressBarTexture("cocosui/sliderProgress.png");
    slider->setPercent(50);
 
    slider->setPosition(Vec2(screenSize.width / 2.0f, screenSize.height / 3.0f));
    addChild(slider);
 
    slider->addEventListener([&](Ref* sender, ui::Slider::EventType type) {
 
        if (type == ui::Slider::EventType::ON_PERCENTAGE_CHANGED)
        {
            ui::Slider* slider = dynamic_cast<ui::Slider*>(sender);
            float p = slider->getPercent() / 100.0f;
            auto state = _sprite->getProgramState();
            SET_UNIFORM(state, "u_interpolate", p);
        }
    });
    return slider;
}

引用了 _sprite , 以及 SET_UNIFORM.

被这些函数引用 init().

这是这个函数的调用关系图:

init()

bool ShaderMultiTexture::init ( )

overridevirtual

在文件 ShaderTest.cpp 第 776 行定义.

{
    if (ShaderTestDemo::init())
    {
        auto s = Director::getInstance()->getWinSize();
 
        // Left: normal sprite
        auto left = Sprite::create("Images/grossinis_sister1.png");
        addChild(left);
        left->setPosition(s.width*1/4, s.height/2);
 
        // Right: normal sprite
        auto right = Sprite::create("Images/grossinis_sister2.png");
        addChild(right, 0, rightSpriteTag);
        right->setPosition(s.width*3/4, s.height/2);
 
 
        // Center: MultiTexture
        _sprite = Sprite::createWithTexture(left->getTexture());
        addChild(_sprite);
        _sprite->setPosition(Vec2(s.width/2, s.height/2));
 
        auto * fu = FileUtils::getInstance();
        auto vertexShader = fu->getStringFromFile("Shaders/example_MultiTexture.vsh");
        auto fragmentShader = fu->getStringFromFile("Shaders/example_MultiTexture.fsh");
        auto program = backend::Device::getInstance()->newProgram(vertexShader.c_str(), fragmentShader.c_str());
        auto programState = new backend::ProgramState(program);
        _sprite->setProgramState(programState);
 
        SET_TEXTURE(programState, "u_texture1", 1,  right->getTexture()->getBackendTexture());
        SET_UNIFORM(programState, "u_interpolate",0.5f);
 
        // slider
        createSliderCtl();
        
        // menu
        auto label = Label::createWithTTF(TTFConfig("fonts/arial.ttf"), "change");
        auto mi = MenuItemLabel::create(label, CC_CALLBACK_1(ShaderMultiTexture::changeTexture, this));
        auto menu = Menu::create(mi, nullptr);
        addChild(menu);
        menu->setPosition(s.width * 7 / 8, s.height / 2);
 
        CC_SAFE_RELEASE(programState);
        CC_SAFE_RELEASE(program);
        return true;
    }
 
    return false;
}

引用了 _sprite, changeTexture(), createSliderCtl(), rightSpriteTag, SET_TEXTURE , 以及 SET_UNIFORM.

函数调用图:

subtitle()

std::string ShaderMultiTexture::subtitle ( ) const

overridevirtual

重载 TestCase .

在文件 ShaderTest.cpp 第 745 行定义.

{
    return "MultiTexture";
}

title()

std::string ShaderMultiTexture::title ( ) const

overridevirtual

重载 TestCase .

在文件 ShaderTest.cpp 第 740 行定义.

{
    return "MultiTexture test";
}

类成员变量说明

_changedTextureId

int ShaderMultiTexture::_changedTextureId

在文件 ShaderTest.h 第 215 行定义.

被这些函数引用 changeTexture().

_sprite

cocos2d::Sprite* ShaderMultiTexture::_sprite

在文件 ShaderTest.h 第 216 行定义.

被这些函数引用 changeTexture(), createSliderCtl() , 以及 init().

rightSpriteTag

const int ShaderMultiTexture::rightSpriteTag = 2014

staticprivate

在文件 ShaderTest.h 第 209 行定义.

被这些函数引用 changeTexture() , 以及 init().

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该类的文档由以下文件生成:

• /Users/yujizhu/Documents/Git/cocos2d-x-4.0/tests/cpp-tests/Classes/ShaderTest/ShaderTest.h
• /Users/yujizhu/Documents/Git/cocos2d-x-4.0/tests/cpp-tests/Classes/ShaderTest/ShaderTest.cpp