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https://github.com/microsoft/DirectXTex
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texconv -swizzle option (#210)
This commit is contained in:
Chuck Walbourn
GitHub
parent
f550d9998e
commit
3891fca9c0
@ -119,6 +119,7 @@ namespace
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OPT_ROTATE_COLOR,
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OPT_PAPER_WHITE_NITS,
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OPT_BCNONMULT4FIX,
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OPT_SWIZZLE,
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OPT_MAX
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};
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@ -204,6 +205,7 @@ namespace
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{ L"rotatecolor", OPT_ROTATE_COLOR },
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{ L"nits", OPT_PAPER_WHITE_NITS },
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{ L"fixbc4x4", OPT_BCNONMULT4FIX },
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{ L"swizzle", OPT_SWIZZLE },
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{ nullptr, 0 }
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};
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@ -845,6 +847,7 @@ namespace
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wprintf(L" -x2bias Enable *2 - 1 conversion cases for unorm/pos-only-float\n");
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wprintf(L" -inverty Invert Y (i.e. green) channel values\n");
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wprintf(L" -reconstructz Rebuild Z (blue) channel assuming X/Y are normals\n");
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wprintf(L" -swizzle <rgba> Swizzle image channels using HLSL-style mask\n");
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wprintf(L"\n <format>: ");
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PrintList(13, g_pFormats);
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@ -1056,6 +1059,61 @@ namespace
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float normalizedLinear = pow(std::max(pow(abs(ST2084), 1.0f / 78.84375f) - 0.8359375f, 0.0f) / (18.8515625f - 18.6875f * pow(abs(ST2084), 1.0f / 78.84375f)), 1.0f / 0.1593017578f);
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return normalizedLinear;
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}
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bool ParseSwizzleMask(_In_reads_(4) const wchar_t* mask, _Out_writes_(4) uint32_t* swizzleElements)
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{
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if (!mask || !swizzleElements)
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return false;
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if (!mask[0])
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return false;
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for (size_t j = 0; j < 4; ++j)
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{
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if (!mask[j])
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break;
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switch (mask[j])
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{
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case L'R':
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case L'X':
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case L'r':
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case L'x':
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for (size_t k = j; k < 4; ++k)
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swizzleElements[k] = 0;
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break;
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case L'G':
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case L'Y':
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case L'g':
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case L'y':
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for (size_t k = j; k < 4; ++k)
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swizzleElements[k] = 1;
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break;
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case L'B':
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case L'Z':
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case L'b':
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case L'z':
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for (size_t k = j; k < 4; ++k)
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swizzleElements[k] = 2;
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break;
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case L'A':
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case L'W':
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case L'a':
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case L'w':
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for (size_t k = j; k < 4; ++k)
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swizzleElements[k] = 3;
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break;
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default:
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return false;
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}
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}
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return true;
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}
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}
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//--------------------------------------------------------------------------------------
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@ -1090,6 +1148,7 @@ int __cdecl wmain(_In_ int argc, _In_z_count_(argc) wchar_t* argv[])
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float paperWhiteNits = 200.f;
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float preserveAlphaCoverageRef = 0.0f;
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bool keepRecursiveDirs = false;
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uint32_t swizzleElements[4] = { 0, 1, 2, 3 };
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wchar_t szPrefix[MAX_PATH] = {};
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wchar_t szSuffix[MAX_PATH] = {};
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@ -1156,6 +1215,7 @@ int __cdecl wmain(_In_ int argc, _In_z_count_(argc) wchar_t* argv[])
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case OPT_ROTATE_COLOR:
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case OPT_PAPER_WHITE_NITS:
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case OPT_PRESERVE_ALPHA_COVERAGE:
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case OPT_SWIZZLE:
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// These support either "-arg:value" or "-arg value"
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if (!*pValue)
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{
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@ -1348,7 +1408,6 @@ int __cdecl wmain(_In_ int argc, _In_z_count_(argc) wchar_t* argv[])
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else
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{
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wprintf(L"Invalid value specified for -nmap (%ls), missing l, r, g, b, or a\n\n", pValue);
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PrintUsage();
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return 1;
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}
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@ -1396,7 +1455,6 @@ int __cdecl wmain(_In_ int argc, _In_z_count_(argc) wchar_t* argv[])
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else if (nmapAmplitude < 0.f)
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{
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wprintf(L"Normal map amplitude must be positive (%ls)\n\n", pValue);
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PrintUsage();
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return 1;
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}
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break;
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@ -1410,7 +1468,7 @@ int __cdecl wmain(_In_ int argc, _In_z_count_(argc) wchar_t* argv[])
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}
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else if (adapter < 0)
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{
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wprintf(L"Adapter index (%ls)\n\n", pValue);
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wprintf(L"Invalid adapter index (%ls)\n\n", pValue);
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PrintUsage();
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return 1;
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}
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@ -1498,7 +1556,6 @@ int __cdecl wmain(_In_ int argc, _In_z_count_(argc) wchar_t* argv[])
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if (!found)
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{
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wprintf(L"Invalid value specified for -bc (%ls), missing d, u, q, or x\n\n", pValue);
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PrintUsage();
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return 1;
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}
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}
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@ -1635,6 +1692,20 @@ int __cdecl wmain(_In_ int argc, _In_z_count_(argc) wchar_t* argv[])
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return 1;
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}
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break;
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case OPT_SWIZZLE:
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if (!*pValue || wcslen(pValue) > 4)
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{
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wprintf(L"Invalid value specified with -swizzle (%ls)\n\n", pValue);
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PrintUsage();
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return 1;
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}
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else if (!ParseSwizzleMask(pValue, swizzleElements))
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{
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wprintf(L"-swizzle requires a 1 to 4 character mask composed of these letters: r, g, b, a, x, y, w, z\n");
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return 1;
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}
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break;
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}
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}
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else if (wcspbrk(pArg, L"?*") != nullptr)
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@ -2145,6 +2216,50 @@ int __cdecl wmain(_In_ int argc, _In_z_count_(argc) wchar_t* argv[])
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cimage.reset();
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}
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// --- Swizzle (if requested) --------------------------------------------------
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if (swizzleElements[0] != 0 || swizzleElements[1] != 1 || swizzleElements[2] != 2 || swizzleElements[3] != 3)
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{
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std::unique_ptr<ScratchImage> timage(new (std::nothrow) ScratchImage);
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if (!timage)
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{
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wprintf(L"\nERROR: Memory allocation failed\n");
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return 1;
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}
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hr = TransformImage(image->GetImages(), image->GetImageCount(), image->GetMetadata(),
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[&](XMVECTOR* outPixels, const XMVECTOR* inPixels, size_t w, size_t y)
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{
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UNREFERENCED_PARAMETER(y);
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for (size_t j = 0; j < w; ++j)
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{
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outPixels[j] = XMVectorSwizzle(inPixels[j],
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swizzleElements[0], swizzleElements[1], swizzleElements[2], swizzleElements[3]);
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}
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}, *timage);
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if (FAILED(hr))
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{
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wprintf(L" FAILED [swizzle] (%x)\n", static_cast<unsigned int>(hr));
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return 1;
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}
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#ifndef NDEBUG
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auto& tinfo = timage->GetMetadata();
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#endif
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assert(info.width == tinfo.width);
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assert(info.height == tinfo.height);
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assert(info.depth == tinfo.depth);
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assert(info.arraySize == tinfo.arraySize);
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assert(info.mipLevels == tinfo.mipLevels);
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assert(info.miscFlags == tinfo.miscFlags);
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assert(info.format == tinfo.format);
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assert(info.dimension == tinfo.dimension);
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image.swap(timage);
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cimage.reset();
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}
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// --- Color rotation (if requested) -------------------------------------------
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if (dwRotateColor)
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{
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