// Unit test for srgb_to_unorm (host/src/capture/dxgi_format.hpp): the hooked
// video path samples the shared backbuffer copy as plain UNORM so an *_SRGB game
// backbuffer isn't darkened by an sRGB->linear decode the host never re-encodes.
// Locks the format mapping that fix depends on. No device needed.

#include <cstdio>

#include "capture/dxgi_format.hpp"

using namespace coop;

namespace
{
int g_failures = 0;
void expect(DXGI_FORMAT in, DXGI_FORMAT want, const char* what)
{
	const DXGI_FORMAT got = srgb_to_unorm(in);
	if (got != want)
	{
		std::printf("  FAIL: %s (got %d, want %d)\n", what, static_cast<int>(got), static_cast<int>(want));
		++g_failures;
	}
}
} // namespace

int main()
{
	// sRGB formats map to their plain-UNORM sibling.
	expect(DXGI_FORMAT_R8G8B8A8_UNORM_SRGB, DXGI_FORMAT_R8G8B8A8_UNORM, "R8G8B8A8 sRGB -> UNORM");
	expect(DXGI_FORMAT_B8G8R8A8_UNORM_SRGB, DXGI_FORMAT_B8G8R8A8_UNORM, "B8G8R8A8 sRGB -> UNORM");
	expect(DXGI_FORMAT_B8G8R8X8_UNORM_SRGB, DXGI_FORMAT_B8G8R8X8_UNORM, "B8G8R8X8 sRGB -> UNORM");

	// Non-sRGB formats pass through unchanged.
	expect(DXGI_FORMAT_R8G8B8A8_UNORM, DXGI_FORMAT_R8G8B8A8_UNORM, "R8G8B8A8 UNORM passthrough");
	expect(DXGI_FORMAT_B8G8R8A8_UNORM, DXGI_FORMAT_B8G8R8A8_UNORM, "B8G8R8A8 UNORM passthrough");
	expect(DXGI_FORMAT_R10G10B10A2_UNORM, DXGI_FORMAT_R10G10B10A2_UNORM, "R10G10B10A2 passthrough");
	expect(DXGI_FORMAT_R16G16B16A16_FLOAT, DXGI_FORMAT_R16G16B16A16_FLOAT, "RGBA16F passthrough");

	std::printf(g_failures == 0 ? "SRGB FORMAT TEST PASS\n" : "SRGB FORMAT TEST FAILED (%d)\n", g_failures);
	return g_failures == 0 ? 0 : 1;
}