std::vector<unsigned char> Framebuffer::readPixelsToByteArray(const std::array<GLint, 4> & rect, const GLenum format, const GLenum type) const
{
int size = imageSizeInBytes(rect[2], rect[3], 1, format, type);
std::vector<unsigned char> data(size);
readPixels(rect, format, type, data.data());
return data;
}
std::vector<unsigned char> Texture::getImage(const GLint level, const GLenum format, const GLenum type) const
{
GLint width = getLevelParameter(level, GL_TEXTURE_WIDTH);
GLint height = getLevelParameter(level, GL_TEXTURE_HEIGHT);
GLint depth = getLevelParameter(level, GL_TEXTURE_DEPTH);
int byteSize = imageSizeInBytes(width, height, depth, format, type);
std::vector<unsigned char> data(byteSize);
getImage(level, format, type, data.data());
return data;
}
