TexturePixelFormat类 参考

#include <Texture2dTest.h>

类 TexturePixelFormat 继承关系图:

TexturePixelFormat 的协作图:

Public 成员函数
	CREATE_FUNC (TexturePixelFormat)
virtual std::string	title () const override
virtual std::string	subtitle () const override
virtual void	onEnter () override
Public 成员函数 继承自 TextureDemo
virtual	~TextureDemo ()
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

额外继承的成员函数
Public 类型 继承自 TestCase
enum class	Type { ROBUSTNESS , UNIT , GRAPHICAL_STATIC , MANUAL }
Public 属性 继承自 TestCase
CC_CONSTRUCTOR_ACCESS	__pad0__: virtual bool init() override
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 Texture2dTest.h 第 386 行定义.

成员函数说明

CREATE_FUNC()

TexturePixelFormat::CREATE_FUNC

(

TexturePixelFormat

)

onEnter()

void TexturePixelFormat::onEnter ( )

overridevirtual

重载 TextureDemo .

在文件 Texture2dTest.cpp 第 1331 行定义.

{
    //
    // This example displays 1 png images 4 times.
    // Each time the image is generated using:
    // 1- 32-bit RGBA8
    // 2- 16-bit RGBA4
    // 3- 16-bit RGB5A1
    // 4- 16-bit RGB565
    TextureDemo::onEnter();
        
    auto s = Director::getInstance()->getWinSize();
 
    auto background = LayerColor::create(Color4B(128,128,128,255), s.width, s.height);
    addChild(background, -1);
    
    // RGBA 8888 image (32-bit)
    Texture2D::setDefaultAlphaPixelFormat(backend::PixelFormat::RGBA8888);
    auto sprite1 = Sprite::create("Images/test-rgba1.png");
    sprite1->setPosition(Vec2(1*s.width/7, s.height/2+32));
    addChild(sprite1, 0);
 
    // remove texture from texture manager    
    Director::getInstance()->getTextureCache()->removeTexture(sprite1->getTexture());
 
    // RGBA 4444 image (16-bit)
    Texture2D::setDefaultAlphaPixelFormat(backend::PixelFormat::RGBA4444);
    auto sprite2 = Sprite::create("Images/test-rgba1.png");
    sprite2->setPosition(Vec2(2*s.width/7, s.height/2-32));
    addChild(sprite2, 0);
 
    // remove texture from texture manager    
    Director::getInstance()->getTextureCache()->removeTexture(sprite2->getTexture());
 
    // RGB5A1 image (16-bit)
    Texture2D::setDefaultAlphaPixelFormat(backend::PixelFormat::RGB5A1);
    auto sprite3 = Sprite::create("Images/test-rgba1.png");
    sprite3->setPosition(Vec2(3*s.width/7, s.height/2+32));
    addChild(sprite3, 0);
 
    // remove texture from texture manager    
    Director::getInstance()->getTextureCache()->removeTexture(sprite3->getTexture());
 
    // RGB888 image
    Texture2D::setDefaultAlphaPixelFormat(backend::PixelFormat::RGB888);
    auto sprite4 = Sprite::create("Images/test-rgba1.png");
    sprite4->setPosition(Vec2(4*s.width/7, s.height/2-32));
    addChild(sprite4, 0);
 
    // remove texture from texture manager    
    Director::getInstance()->getTextureCache()->removeTexture(sprite4->getTexture());
 
    // RGB565 image (16-bit)
    Texture2D::setDefaultAlphaPixelFormat(backend::PixelFormat::RGB565);
    auto sprite5 = Sprite::create("Images/test-rgba1.png");
    sprite5->setPosition(Vec2(5*s.width/7, s.height/2+32));
    addChild(sprite5, 0);
 
    // remove texture from texture manager    
    Director::getInstance()->getTextureCache()->removeTexture(sprite5->getTexture());
 
    // A8 image (8-bit)
    Texture2D::setDefaultAlphaPixelFormat(backend::PixelFormat::A8);
    auto sprite6 = Sprite::create("Images/test-rgba1.png");
    sprite6->setPosition(Vec2(6*s.width/7, s.height/2-32));
    addChild(sprite6, 0);
    
    // remove texture from texture manager    
    Director::getInstance()->getTextureCache()->removeTexture(sprite6->getTexture());
 
    auto fadeout = FadeOut::create(2);
    auto fadein  = FadeIn::create(2);
    auto seq = Sequence::create(DelayTime::create(2), fadeout, fadein, nullptr);
    auto seq_4ever = RepeatForever::create(seq);
    auto seq_4ever2 = seq_4ever->clone();
    auto seq_4ever3 = seq_4ever->clone();
    auto seq_4ever4 = seq_4ever->clone();
    auto seq_4ever5 = seq_4ever->clone();
    
    sprite1->runAction(seq_4ever);
    sprite2->runAction(seq_4ever2);
    sprite3->runAction(seq_4ever3);
    sprite4->runAction(seq_4ever4);
    sprite5->runAction(seq_4ever5);
 
    // restore default
    Texture2D::setDefaultAlphaPixelFormat(backend::PixelFormat::DEFAULT);
    log("%s\n", Director::getInstance()->getTextureCache()->getCachedTextureInfo().c_str());
}

引用了 TextureDemo::onEnter().

函数调用图:

subtitle()

std::string TexturePixelFormat::subtitle ( ) const

overridevirtual

重载 TestCase .

在文件 Texture2dTest.cpp 第 1426 行定义.

{
    return "Textures: RGBA8888, RGBA4444, RGB5A1, RGB888, RGB565, A8";
}

title()

std::string TexturePixelFormat::title ( ) const

overridevirtual

重载 TestCase .

在文件 Texture2dTest.cpp 第 1421 行定义.

{
    return "Texture Pixel Formats";
}

---

该类的文档由以下文件生成:

• /Users/yujizhu/Documents/Git/cocos2d-x-4.0/tests/cpp-tests/Classes/Texture2dTest/Texture2dTest.h
• /Users/yujizhu/Documents/Git/cocos2d-x-4.0/tests/cpp-tests/Classes/Texture2dTest/Texture2dTest.cpp