render_buffer.cxx

#include "render_buffer.h"
 
namespace cgv {
    namespace render {
 
render_buffer::render_buffer(const std::string& description)
    : cgv::data::component_format(description)
{
    width = -1;
    height = -1;
    handle = 0;
}
 
void render_buffer::set_nr_multi_samples(unsigned _nr_samples)
{
    nr_multi_samples = _nr_samples;
}
 
render_buffer::~render_buffer()
{
    if (handle) {
        if (ctx_ptr)
            destruct(*ctx_ptr);
        else
            std::cerr << "could not destruct render buffer in destructor" << std::endl;
    }
}
 
void render_buffer::destruct(const context& ctx)
{
    if (handle) {
        ctx.render_buffer_destruct(*this);
    }
}
 
bool render_buffer::is_created() const
{
    return handle != 0;
}
 
bool render_buffer::create(const context& ctx, int _width, int _height)
{
    if (ctx_ptr)
        destruct(*ctx_ptr);
    else
        destruct(ctx);
    bool res = ctx.render_buffer_create(*this, *this, _width, _height);
    ctx_ptr = &ctx;
    width = _width;
    height = _height;
    return res;
}
 
bool render_buffer::is_depth_buffer() const
{
    return get_standard_component_format() == cgv::data::CF_D;
}
 
bool render_buffer::is_color_buffer() const
{
    return get_standard_component_format() == cgv::data::CF_RGB || 
             get_standard_component_format() == cgv::data::CF_RGBA;
}
 
 
    }
}