void
ImageTexture2D::overwriteWith(float const * redPixels, float const * greenPixels, float const * bluePixels)
{
unsigned const format = extPixelFormat[3];
unsigned const type = GL_FLOAT;
float * pixels = new float[3 * _width * _height];
interleavePixels(_width, _height, redPixels, greenPixels, bluePixels, pixels);
glBindTexture(_textureTarget, _textureID);
glTexSubImage2D(_textureTarget, 0, 0, 0, _width, _height, format, type, pixels);
delete [] pixels;
checkGLErrorsHere1(_texName);
}
void ImageTexture2D::overwriteWith(uchar const * redPixels,
uchar const * greenPixels, uchar const * bluePixels,
uchar const * alphaPixels) {
unsigned const format = extPixelFormat[4];
unsigned const type = GL_UNSIGNED_BYTE;
unsigned char * pixels = new unsigned char[4 * _width * _height];
interleavePixels(_width, _height, redPixels, greenPixels, bluePixels,
alphaPixels, pixels);
glBindTexture(_textureTarget, _textureID);
glTexSubImage2D(_textureTarget, 0, 0, 0, _width, _height, format, type,
pixels);
delete[] pixels;
checkGLErrorsHere1(_texName);
}