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#include "nes/display.hh"
#include "nes/nes.hh"
#include "nes/util/rgb.hh"
#include "nes/util/snapshot.hh"
#include <iostream>
namespace
{
class dummy_display final : public nes::display
{
std::uint8_t buffer_a_[width * height * 3]{};
std::uint8_t buffer_b_[width * height * 3]{};
std::uint8_t* front_buffer_{ buffer_a_ };
std::uint8_t* back_buffer_{ buffer_b_ };
public:
explicit dummy_display() = default;
auto get(unsigned const x, unsigned const y) const -> nes::rgb override
{
auto const offset = ((y * width) + x) * 3;
return nes::rgb{ back_buffer_[offset + 0], back_buffer_[offset + 1], back_buffer_[offset + 2] };
}
auto set(unsigned const x, unsigned const y, nes::rgb const value) -> void override
{
auto const offset = ((y * width) + x) * 3;
back_buffer_[offset + 0] = value.r;
back_buffer_[offset + 1] = value.g;
back_buffer_[offset + 2] = value.b;
}
auto switch_buffers() -> void override
{
std::swap(front_buffer_, back_buffer_);
}
};
} // namespace
int main()
{
auto const path = "/Users/hannes/Documents/temp/supermario.nes";
auto cartridge = nes::cartridge::from_file(path);
if (!cartridge.is_valid())
{
std::cerr << "Could not load cartridge!" << std::endl;
std::abort();
}
// Initialize the system to be tested.
auto display_a = std::make_unique<dummy_display>();
auto sys_a = nes::nes{ cartridge, *display_a };
// Initialize the (assumed to be working) reference implementation.
auto display_b = std::make_unique<dummy_display>();
auto sys_b = nes::nes{ cartridge, *display_b };
// Run.
while (true)
{
auto const status_a = sys_a.get_snapshot();
auto const status_b = sys_b.get_snapshot();
if (status_a != status_b)
{
std::cout << "Different snapshot!\n";
return 1;
}
std::cout << "Cycle: " << status_a.cpu_cycle.to_cpu() << ", " << status_b.cpu_cycle.to_cpu() << '\n';
sys_a.step_to_nmi();
sys_b.step_to_nmi();
}
}
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