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104 lines
2.3 KiB
C++
104 lines
2.3 KiB
C++
// MPVHookTextureParser.cpp : 此文件包含 "main" 函数。程序执行将在此处开始并结束。
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//
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#define NOMINMAX
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#include <iostream>
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#include <fstream>
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#include <vector>
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#include <DirectXTex.h>
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#include <DirectXPackedVector.h>
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#include <string_view>
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static std::wstring UTF8ToUTF16(std::string_view str) noexcept {
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int convertResult = MultiByteToWideChar(CP_ACP, 0, str.data(), (int)str.size(), nullptr, 0);
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if (convertResult <= 0) {
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assert(false);
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return {};
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}
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std::wstring r(convertResult + 10, L'\0');
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convertResult = MultiByteToWideChar(CP_ACP, 0, str.data(), (int)str.size(), &r[0], (int)r.size());
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if (convertResult <= 0) {
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assert(false);
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return {};
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}
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return std::wstring(r.begin(), r.begin() + convertResult);
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}
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static BYTE ResolveHex(char c) noexcept {
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if (c >= '0' && c <= '9') {
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return c - '0';
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} else if (c >= 'a' && c <= 'f') {
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return c - 'a' + 10;
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} else {
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return 0;
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}
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}
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int main(int argc, char* argv[]) {
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SetConsoleOutputCP(CP_UTF8);
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if (argc != 3) {
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std::wcout << "非法参数" << std::endl;
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return 1;
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}
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const char* inFile = argv[1];
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const char* outFile = argv[2];
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std::ifstream ifs(inFile);
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if (!ifs) {
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std::wcout << L"打开" << inFile << L"失败" << std::endl;
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return 1;
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}
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size_t width, height;
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ifs >> width >> height;
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ifs.ignore(std::numeric_limits<std::streamsize>::max(), '\n');
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std::vector<DirectX::PackedVector::HALF> data(width * height * 4);
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for (size_t i = 0; i < data.size(); ++i) {
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// 解析 32 位浮点数
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union {
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UINT i;
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FLOAT f;
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} binary{};
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for (int j = 0; j < 4; ++j) {
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char c1 = (char)ifs.get();
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char c2 = (char)ifs.get();
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if (!ifs) {
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std::cout << "非法的文件格式" << std::endl;
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return 1;
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}
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binary.i |= ((ResolveHex(c1) << 4) + ResolveHex(c2)) << (j * 8);
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}
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// 转换为半精度浮点数
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data[i] = DirectX::PackedVector::XMConvertFloatToHalf(binary.f);
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}
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// 保存 DDS
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DirectX::Image img{};
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img.width = width;
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img.height = height;
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img.format = DXGI_FORMAT_R16G16B16A16_FLOAT;
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img.pixels = (uint8_t*)data.data();
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img.rowPitch = width * 8;
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img.slicePitch = img.rowPitch * height;
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HRESULT hr = DirectX::SaveToDDSFile(img, DirectX::DDS_FLAGS_NONE, UTF8ToUTF16(outFile).c_str());
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if (FAILED(hr)) {
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std::cout << "保存 DDS 失败";
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return 1;
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}
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std::cout << "已生成 " << outFile << std::endl;
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return 0;
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}
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