Lothario
/
axmol
mirror of https://github.com/axmolengine/axmol.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #1471 from minggo/iss1466-shader-test 

reloading shader when coming to foreground
This commit is contained in:
minggo 2012-10-17 20:03:22 -07:00
parent 1e45a72db0 501ceb21eb
commit d68f7c76f6
2 changed files with 74 additions and 27 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

97
samples/TestCpp/Classes/ShaderTest/ShaderTest.cpp
View File

@ -150,6 +150,11 @@ ShaderNode::ShaderNode()
{
}
ShaderNode::~ShaderNode()
{
CCNotificationCenter::sharedNotificationCenter()->removeObserver(this, EVNET_COME_TO_FOREGROUND);
}
ShaderNode* ShaderNode::shaderNodeWithVertex(const char *vert, const char *frag)
{
ShaderNode *node = new ShaderNode();
@ -161,6 +166,10 @@ ShaderNode* ShaderNode::shaderNodeWithVertex(const char *vert, const char *frag)
bool ShaderNode::initWithVertex(const char *vert, const char *frag)
{
CCNotificationCenter::sharedNotificationCenter()->addObserver(this,
callfuncO_selector(ShaderNode::listenBackToForeground),
EVNET_COME_TO_FOREGROUND,
NULL);
loadShaderVertex(vert, frag);
@ -171,10 +180,19 @@ bool ShaderNode::initWithVertex(const char *vert, const char *frag)
setContentSize(CCSizeMake(SIZE_X, SIZE_Y));
setAnchorPoint(ccp(0.5f, 0.5f));
m_vertFileName = vert;
m_fragFileName = frag;
return true;
}
void ShaderNode::listenBackToForeground(CCObject *obj)
{
this->setShaderProgram(NULL);
loadShaderVertex(m_vertFileName.c_str(), m_fragFileName.c_str());
}
void ShaderNode::loadShaderVertex(const char *vert, const char *frag)
{
CCGLProgram *shader = new CCGLProgram();
@ -438,9 +456,12 @@ std::string ShaderPlasma::subtitle()
class SpriteBlur : public CCSprite
{
public:
~SpriteBlur();
void setBlurSize(float f);
bool initWithTexture(CCTexture2D* texture, const CCRect& rect);
void draw();
void initProgram();
void listenBackToForeground(CCObject *obj);
static SpriteBlur* create(const char *pszFileName);
@ -451,6 +472,11 @@ public:
GLuint subLocation;
};
SpriteBlur::~SpriteBlur()
{
CCNotificationCenter::sharedNotificationCenter()->removeObserver(this, EVNET_COME_TO_FOREGROUND);
}
SpriteBlur* SpriteBlur::create(const char *pszFileName)
{
SpriteBlur* pRet = new SpriteBlur();
@ -466,48 +492,65 @@ SpriteBlur* SpriteBlur::create(const char *pszFileName)
return pRet;
}
void SpriteBlur::listenBackToForeground(CCObject *obj)
{
setShaderProgram(NULL);
initProgram();
}
bool SpriteBlur::initWithTexture(CCTexture2D* texture, const CCRect& rect)
{
if( CCSprite::initWithTexture(texture, rect) )
{
CCNotificationCenter::sharedNotificationCenter()->addObserver(this,
callfuncO_selector(SpriteBlur::listenBackToForeground),
EVNET_COME_TO_FOREGROUND,
NULL);
CCSize s = getTexture()->getContentSizeInPixels();
blur_ = ccp(1/s.width, 1/s.height);
sub_[0] = sub_[1] = sub_[2] = sub_[3] = 0;
GLchar * fragSource = (GLchar*) CCString::createWithContentsOfFile(
CCFileUtils::sharedFileUtils()->fullPathFromRelativePath("Shaders/example_Blur.fsh"))->getCString();
CCGLProgram* pProgram = new CCGLProgram();
pProgram->initWithVertexShaderByteArray(ccPositionTextureColor_vert, fragSource);
setShaderProgram(pProgram);
pProgram->release();
CHECK_GL_ERROR_DEBUG();
getShaderProgram()->addAttribute(kCCAttributeNamePosition, kCCVertexAttrib_Position);
getShaderProgram()->addAttribute(kCCAttributeNameColor, kCCVertexAttrib_Color);
getShaderProgram()->addAttribute(kCCAttributeNameTexCoord, kCCVertexAttrib_TexCoords);
CHECK_GL_ERROR_DEBUG();
getShaderProgram()->link();
CHECK_GL_ERROR_DEBUG();
getShaderProgram()->updateUniforms();
CHECK_GL_ERROR_DEBUG();
subLocation = glGetUniformLocation( getShaderProgram()->getProgram(), "substract");
blurLocation = glGetUniformLocation( getShaderProgram()->getProgram(), "blurSize");
CHECK_GL_ERROR_DEBUG();
this->initProgram();
return true;
}
return false;
}
void SpriteBlur::initProgram()
{
GLchar * fragSource = (GLchar*) CCString::createWithContentsOfFile(
CCFileUtils::sharedFileUtils()->fullPathFromRelativePath("Shaders/example_Blur.fsh"))->getCString();
CCGLProgram* pProgram = new CCGLProgram();
pProgram->initWithVertexShaderByteArray(ccPositionTextureColor_vert, fragSource);
setShaderProgram(pProgram);
pProgram->release();
CHECK_GL_ERROR_DEBUG();
getShaderProgram()->addAttribute(kCCAttributeNamePosition, kCCVertexAttrib_Position);
getShaderProgram()->addAttribute(kCCAttributeNameColor, kCCVertexAttrib_Color);
getShaderProgram()->addAttribute(kCCAttributeNameTexCoord, kCCVertexAttrib_TexCoords);
CHECK_GL_ERROR_DEBUG();
getShaderProgram()->link();
CHECK_GL_ERROR_DEBUG();
getShaderProgram()->updateUniforms();
CHECK_GL_ERROR_DEBUG();
subLocation = glGetUniformLocation( getShaderProgram()->getProgram(), "substract");
blurLocation = glGetUniformLocation( getShaderProgram()->getProgram(), "blurSize");
CHECK_GL_ERROR_DEBUG();
}
void SpriteBlur::draw()
{
ccGLEnableVertexAttribs(kCCVertexAttribFlag_PosColorTex );

4
samples/TestCpp/Classes/ShaderTest/ShaderTest.h
View File

@ -114,9 +114,11 @@ class ShaderNode : public CCNode
{
public:
ShaderNode();
~ShaderNode();
bool initWithVertex(const char *vert, const char *frag);
void loadShaderVertex(const char *vert, const char *frag);
void listenBackToForeground(CCObject *obj);
virtual void update(float dt);
virtual void setPosition(const CCPoint &newPosition);
@ -130,6 +132,8 @@ private:
ccVertex2F m_resolution;
float m_time;
GLuint m_uniformCenter, m_uniformResolution, m_uniformTime;
std::string m_vertFileName;
std::string m_fragFileName;
};
class ShaderTestScene : public TestScene