C++ (Cpp) ofFloatPixels::getNumChannels 예제들

예제 #1

파일: ofGLUtils.cpp 프로젝트: 4ker/openFrameworks

//---------------------------------
int ofGetGlInternalFormat(const ofFloatPixels& pix) {
#ifndef TARGET_OPENGLES
	switch(pix.getNumChannels()) {
		case 3: return GL_RGB32F;
		case 4: return GL_RGBA32F;
		case 2:
			if(ofIsGLProgrammableRenderer()){
				return GL_RG32F;
			}else{
				return GL_LUMINANCE_ALPHA32F_ARB;
			}
		default:
			if(ofIsGLProgrammableRenderer()){
				return GL_R32F;
			}else{
				return GL_LUMINANCE32F_ARB;
			}
	}
#else
	ofLogWarning("ofGLUtils") << "ofGetGlInternalFormat(): float textures not supported in OpenGL ES";
	switch(pix.getNumChannels()) {
		case 3: return GL_RGB;
		case 4: return GL_RGBA;
		case 2:
			return GL_LUMINANCE_ALPHA;
		default:
			return GL_LUMINANCE;
	}
#endif
}

예제 #2

파일: ofImage.cpp 프로젝트: prettyextreme/openFrameworks-0.7

FREE_IMAGE_TYPE getFreeImageType(ofFloatPixels& pix) {
	switch(pix.getNumChannels()) {
		case 1: return FIT_FLOAT;
		case 3: return FIT_RGBF;
		case 4: return FIT_RGBAF;
		default:
			ofLogError() << "Unkown freeimage type for" << pix.getNumChannels() << "channels";
			return FIT_UNKNOWN;
	}
}

예제 #3

파일: ofTexture.cpp 프로젝트: 3snail/openFrameworks

//---------------------------------
int ofGetGlInternalFormat(const ofFloatPixels& pix) {
#ifndef TARGET_OPENGLES
	switch(pix.getNumChannels()) {
		case 3: return GL_RGB32F_ARB;
		case 4: return GL_RGBA32F_ARB;
		default: return GL_LUMINANCE32F_ARB;
	}
#else
	ofLogWarning()<< "float textures not supported in GLES";
	switch(pix.getNumChannels()) {
		case 3: return GL_RGB;
		case 4: return GL_RGBA;
		default: return GL_LUMINANCE;
	}
#endif
}

예제 #4

파일: ofImage.cpp 프로젝트: BaptisteTheoriz/openFrameworks

FREE_IMAGE_TYPE getFreeImageType(const ofFloatPixels& pix) {
	switch(pix.getNumChannels()) {
		case 1: return FIT_FLOAT;
		case 3: return FIT_RGBF;
		case 4: return FIT_RGBAF;
		default:
			ofLogError("ofImage") << "getFreeImageType(): unknown FreeImage type for number of channels:" << pix.getNumChannels();
			return FIT_UNKNOWN;
	}
}

예제 #5

파일: ofTexture.cpp 프로젝트: jvcleave/compare

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
}

예제 #6

파일: ofTexture.cpp 프로젝트: AnnaKolla/openFrameworks

//----------------------------------------------------------
void ofTexture::loadData(const ofFloatPixels & pix){
	ofSetPixelStorei(pix.getWidth(),pix.getBytesPerChannel(),pix.getNumChannels());
	loadData(pix.getPixels(), pix.getWidth(), pix.getHeight(), ofGetGlFormat(pix), ofGetGlType(pix));
}

예제 #7

파일: ftUtil.cpp 프로젝트: bossacorp/ofxFlowTools

		// 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);
	}