//----------------------------------------------------------
void ofTexture::loadData(const ofFloatPixels & pix, int glFormat){
if(!isAllocated()){
allocate(pix.getWidth(), pix.getHeight(), ofGetGlInternalFormat(pix), ofGetUsingArbTex(), glFormat, ofGetGlType(pix));
}
ofSetPixelStoreiAlignment(GL_UNPACK_ALIGNMENT,pix.getWidth(),pix.getBytesPerChannel(),ofGetNumChannelsFromGLFormat(glFormat));
loadData(pix.getData(), pix.getWidth(), pix.getHeight(), glFormat, ofGetGlType(pix));
}
//----------------------------------------------------------
void ofTexture::allocate(const ofFloatPixels& pix, bool bUseARBExtention){
allocate(pix.getWidth(), pix.getHeight(), ofGetGlInternalFormat(pix), bUseARBExtention, ofGetGlFormat(pix), ofGetGlType(pix));
if((pix.getPixelFormat()==OF_PIXELS_GRAY || pix.getPixelFormat()==OF_PIXELS_GRAY_ALPHA) && ofIsGLProgrammableRenderer()){
setRGToRGBASwizzles(true);
}
loadData(pix);
}
//----------------------------------------------------------
void ofTexture::loadData(const ofFloatPixels & pix){
if(!isAllocated()){
allocate(pix);
}else{
ofSetPixelStoreiAlignment(GL_UNPACK_ALIGNMENT,pix.getBytesStride());
loadData(pix.getData(), pix.getWidth(), pix.getHeight(), ofGetGlFormat(pix), ofGetGlType(pix));
}
}
void ofTexture::readToPixels(ofFloatPixels & pixels) const {
#ifndef TARGET_OPENGLES
pixels.allocate(texData.width,texData.height,ofGetImageTypeFromGLType(texData.glInternalFormat));
ofSetPixelStoreiAlignment(GL_PACK_ALIGNMENT,pixels.getWidth(),pixels.getBytesPerChannel(),pixels.getNumChannels());
glBindTexture(texData.textureTarget,texData.textureID);
glGetTexImage(texData.textureTarget,0,ofGetGlFormat(pixels),GL_FLOAT,pixels.getData());
glBindTexture(texData.textureTarget,0);
#endif
}
// get float pixels from a fbo or texture
void ftUtil::toPixels(ofTexture& _tex, ofFloatPixels& _pixels) {
ofTextureData& texData = _tex.getTextureData();
int format = texData.glInternalFormat;
int readFormat, numChannels;
switch(format){
case GL_R32F: readFormat = GL_RED, numChannels = 1; break; // or is it GL_R
case GL_RG32F: readFormat = GL_RG, numChannels = 2; break;
case GL_RGB32F: readFormat = GL_RGB, numChannels = 3; break;
case GL_RGBA32F: readFormat = GL_RGBA, numChannels = 4; break;
default:
ofLogWarning("ftUtil") << "toPixels: " << "can only read float textures to ofFloatPixels";
return;
}
if (_pixels.getWidth() != texData.width || _pixels.getHeight() != texData.height || _pixels.getNumChannels() != numChannels) {
_pixels.allocate(texData.width, texData.height, numChannels);
}
ofSetPixelStoreiAlignment(GL_PACK_ALIGNMENT, texData.width, 4, numChannels);
glBindTexture(texData.textureTarget, texData.textureID);
glGetTexImage(texData.textureTarget, 0, readFormat, GL_FLOAT, _pixels.getData());
glBindTexture(texData.textureTarget, 0);
}
void ofxTexture3d::loadData(ofFloatPixels & pix, int d, int xOffset, int yOffset, int zOffset)
{
loadData(pix.getData(), pix.getWidth(), pix.getHeight(), d, xOffset, yOffset, zOffset, ofGetGlFormat(pix));
}
//----------------------------------------------------------
void ofTexture::loadData(const ofFloatPixels & pix, int glFormat){
ofSetPixelStorei(pix.getWidth(),pix.getBytesPerChannel(),ofGetNumChannelsFromGLFormat(glFormat));
loadData(pix.getPixels(), pix.getWidth(), pix.getHeight(), glFormat, ofGetGlType(pix));
}
//----------------------------------------------------------
void ofTexture::loadData(const ofFloatPixels & pix){
ofSetPixelStorei(pix.getBytesStride());
loadData(pix.getPixels(), pix.getWidth(), pix.getHeight(), ofGetGlFormat(pix), ofGetGlType(pix));
}
//----------------------------------------------------------
void ofTexture::allocate(const ofFloatPixels& pix, bool bUseARBExtention){
allocate(pix.getWidth(), pix.getHeight(), ofGetGlInternalFormat(pix), bUseARBExtention, ofGetGlFormat(pix), ofGetGlType(pix));
}
//----------------------------------------------------------
void ofTexture::allocate(const ofFloatPixels& pix){
allocate(pix.getWidth(), pix.getHeight(), ofGetGlInternalFormat(pix), ofGetUsingArbTex(), ofGetGlFormat(pix), ofGetGlType(pix));
}
//----------------------------------------------------------
void ofTexture::loadData(const ofFloatPixels & pix){
loadData(pix.getPixels(), pix.getWidth(), pix.getHeight(), ofGetGlFormat(pix));
}
//----------------------------------------------------------
void ofTexture::loadData(const ofFloatPixels & pix, int glFormat){
ofSetPixelStoreiAlignment(GL_UNPACK_ALIGNMENT,pix.getWidth(),pix.getBytesPerChannel(),ofGetNumChannelsFromGLFormat(glFormat));
loadData(pix.getData(), pix.getWidth(), pix.getHeight(), glFormat, ofGetGlType(pix));
}