667 lines
20 KiB
C++
667 lines
20 KiB
C++
//-------------------------------------------------------------------------------------
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// DirectXTexMisc.cpp
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//
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// DirectX Texture Library - Misc image operations
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//
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// THIS CODE AND INFORMATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF
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// ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING BUT NOT LIMITED TO
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// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND/OR FITNESS FOR A
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// PARTICULAR PURPOSE.
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//
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// Copyright (c) Microsoft Corporation. All rights reserved.
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//
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// http://go.microsoft.com/fwlink/?LinkId=248926
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//-------------------------------------------------------------------------------------
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#include "directxtexp.h"
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using namespace DirectX;
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namespace
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{
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const XMVECTORF32 g_Gamma22 = { 2.2f, 2.2f, 2.2f, 1.f };
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//-------------------------------------------------------------------------------------
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HRESULT ComputeMSE_(
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const Image& image1,
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const Image& image2,
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float& mse,
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_Out_writes_opt_(4) float* mseV,
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DWORD flags)
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{
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if (!image1.pixels || !image2.pixels)
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return E_POINTER;
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assert(image1.width == image2.width && image1.height == image2.height);
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assert(!IsCompressed(image1.format) && !IsCompressed(image2.format));
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const size_t width = image1.width;
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ScopedAlignedArrayXMVECTOR scanline(reinterpret_cast<XMVECTOR*>(_aligned_malloc((sizeof(XMVECTOR)*width) * 2, 16)));
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if (!scanline)
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return E_OUTOFMEMORY;
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// Flags implied from image formats
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switch (image1.format)
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{
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case DXGI_FORMAT_B8G8R8X8_UNORM:
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flags |= CMSE_IGNORE_ALPHA;
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break;
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case DXGI_FORMAT_B8G8R8X8_UNORM_SRGB:
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flags |= CMSE_IMAGE1_SRGB | CMSE_IGNORE_ALPHA;
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break;
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case DXGI_FORMAT_R8G8B8A8_UNORM_SRGB:
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case DXGI_FORMAT_BC1_UNORM_SRGB:
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case DXGI_FORMAT_BC2_UNORM_SRGB:
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case DXGI_FORMAT_BC3_UNORM_SRGB:
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case DXGI_FORMAT_B8G8R8A8_UNORM_SRGB:
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case DXGI_FORMAT_BC7_UNORM_SRGB:
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flags |= CMSE_IMAGE1_SRGB;
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break;
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}
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switch (image2.format)
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{
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case DXGI_FORMAT_B8G8R8X8_UNORM:
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flags |= CMSE_IGNORE_ALPHA;
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break;
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case DXGI_FORMAT_B8G8R8X8_UNORM_SRGB:
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flags |= CMSE_IMAGE2_SRGB | CMSE_IGNORE_ALPHA;
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break;
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case DXGI_FORMAT_R8G8B8A8_UNORM_SRGB:
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case DXGI_FORMAT_BC1_UNORM_SRGB:
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case DXGI_FORMAT_BC2_UNORM_SRGB:
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case DXGI_FORMAT_BC3_UNORM_SRGB:
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case DXGI_FORMAT_B8G8R8A8_UNORM_SRGB:
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case DXGI_FORMAT_BC7_UNORM_SRGB:
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flags |= CMSE_IMAGE2_SRGB;
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break;
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}
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const uint8_t *pSrc1 = image1.pixels;
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const size_t rowPitch1 = image1.rowPitch;
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const uint8_t *pSrc2 = image2.pixels;
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const size_t rowPitch2 = image2.rowPitch;
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XMVECTOR acc = g_XMZero;
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static XMVECTORF32 two = { 2.0f, 2.0f, 2.0f, 2.0f };
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for (size_t h = 0; h < image1.height; ++h)
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{
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XMVECTOR* ptr1 = scanline.get();
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if (!_LoadScanline(ptr1, width, pSrc1, rowPitch1, image1.format))
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return E_FAIL;
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XMVECTOR* ptr2 = scanline.get() + width;
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if (!_LoadScanline(ptr2, width, pSrc2, rowPitch2, image2.format))
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return E_FAIL;
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for (size_t i = 0; i < width; ++i)
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{
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XMVECTOR v1 = *(ptr1++);
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if (flags & CMSE_IMAGE1_SRGB)
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{
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v1 = XMVectorPow(v1, g_Gamma22);
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}
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if (flags & CMSE_IMAGE1_X2_BIAS)
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{
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v1 = XMVectorMultiplyAdd(v1, two, g_XMNegativeOne);
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}
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XMVECTOR v2 = *(ptr2++);
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if (flags & CMSE_IMAGE2_SRGB)
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{
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v2 = XMVectorPow(v2, g_Gamma22);
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}
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if (flags & CMSE_IMAGE2_X2_BIAS)
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{
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v1 = XMVectorMultiplyAdd(v2, two, g_XMNegativeOne);
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}
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// sum[ (I1 - I2)^2 ]
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XMVECTOR v = XMVectorSubtract(v1, v2);
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if (flags & CMSE_IGNORE_RED)
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{
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v = XMVectorSelect(v, g_XMZero, g_XMMaskX);
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}
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if (flags & CMSE_IGNORE_GREEN)
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{
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v = XMVectorSelect(v, g_XMZero, g_XMMaskY);
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}
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if (flags & CMSE_IGNORE_BLUE)
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{
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v = XMVectorSelect(v, g_XMZero, g_XMMaskZ);
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}
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if (flags & CMSE_IGNORE_ALPHA)
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{
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v = XMVectorSelect(v, g_XMZero, g_XMMaskW);
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}
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acc = XMVectorMultiplyAdd(v, v, acc);
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}
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pSrc1 += rowPitch1;
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pSrc2 += rowPitch2;
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}
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// MSE = sum[ (I1 - I2)^2 ] / w*h
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XMVECTOR d = XMVectorReplicate(float(image1.width * image1.height));
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XMVECTOR v = XMVectorDivide(acc, d);
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if (mseV)
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{
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XMStoreFloat4(reinterpret_cast<XMFLOAT4*>(mseV), v);
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mse = mseV[0] + mseV[1] + mseV[2] + mseV[3];
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}
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else
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{
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XMFLOAT4 _mseV;
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XMStoreFloat4(&_mseV, v);
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mse = _mseV.x + _mseV.y + _mseV.z + _mseV.w;
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}
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return S_OK;
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}
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//-------------------------------------------------------------------------------------
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HRESULT Evaluate_(
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const Image& image,
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std::function<void __cdecl(_In_reads_(width) const XMVECTOR* pixels, size_t width, size_t y)> pixelFunc)
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{
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if (!pixelFunc)
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return E_INVALIDARG;
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if (!image.pixels)
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return E_POINTER;
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assert(!IsCompressed(image.format));
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const size_t width = image.width;
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ScopedAlignedArrayXMVECTOR scanline(reinterpret_cast<XMVECTOR*>(_aligned_malloc((sizeof(XMVECTOR)*width), 16)));
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if (!scanline)
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return E_OUTOFMEMORY;
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const uint8_t *pSrc = image.pixels;
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const size_t rowPitch = image.rowPitch;
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for (size_t h = 0; h < image.height; ++h)
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{
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if (!_LoadScanline(scanline.get(), width, pSrc, rowPitch, image.format))
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return E_FAIL;
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pixelFunc(scanline.get(), width, h);
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pSrc += rowPitch;
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}
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return S_OK;
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}
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//-------------------------------------------------------------------------------------
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HRESULT Transform_(
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const Image& srcImage,
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std::function<void __cdecl(_Out_writes_(width) XMVECTOR* outPixels, _In_reads_(width) const XMVECTOR* inPixels, size_t width, size_t y)> pixelFunc,
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const Image& destImage)
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{
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if (!pixelFunc)
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return E_INVALIDARG;
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if (!srcImage.pixels || !destImage.pixels)
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return E_POINTER;
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if (srcImage.width != destImage.width || srcImage.height != destImage.height || srcImage.format != destImage.format)
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return E_FAIL;
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const size_t width = srcImage.width;
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ScopedAlignedArrayXMVECTOR scanlines(reinterpret_cast<XMVECTOR*>(_aligned_malloc((sizeof(XMVECTOR)*width*2), 16)));
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if (!scanlines)
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return E_OUTOFMEMORY;
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XMVECTOR* sScanline = scanlines.get();
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XMVECTOR* dScanline = scanlines.get() + width;
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const uint8_t *pSrc = srcImage.pixels;
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const size_t spitch = srcImage.rowPitch;
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uint8_t *pDest = destImage.pixels;
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const size_t dpitch = destImage.rowPitch;
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for (size_t h = 0; h < srcImage.height; ++h)
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{
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if (!_LoadScanline(sScanline, width, pSrc, spitch, srcImage.format))
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return E_FAIL;
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#ifdef _DEBUG
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memset(dScanline, 0xCD, sizeof(XMVECTOR)*width);
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#endif
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pixelFunc(dScanline, sScanline, width, h);
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if (!_StoreScanline(pDest, destImage.rowPitch, destImage.format, dScanline, width))
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return E_FAIL;
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pSrc += spitch;
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pDest += dpitch;
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}
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return S_OK;
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}
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};
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//=====================================================================================
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// Entry points
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//=====================================================================================
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//-------------------------------------------------------------------------------------
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// Copies a rectangle from one image into another
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//-------------------------------------------------------------------------------------
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_Use_decl_annotations_
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HRESULT DirectX::CopyRectangle(
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const Image& srcImage,
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const Rect& srcRect,
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const Image& dstImage,
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DWORD filter,
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size_t xOffset,
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size_t yOffset)
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{
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if (!srcImage.pixels || !dstImage.pixels)
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return E_POINTER;
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if (IsCompressed(srcImage.format) || IsCompressed(dstImage.format)
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|| IsPlanar(srcImage.format) || IsPlanar(dstImage.format)
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|| IsPalettized(srcImage.format) || IsPalettized(dstImage.format))
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return HRESULT_FROM_WIN32(ERROR_NOT_SUPPORTED);
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// Validate rectangle/offset
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if (!srcRect.w || !srcRect.h || ((srcRect.x + srcRect.w) > srcImage.width) || ((srcRect.y + srcRect.h) > srcImage.height))
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{
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return E_INVALIDARG;
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}
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if (((xOffset + srcRect.w) > dstImage.width) || ((yOffset + srcRect.h) > dstImage.height))
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{
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return E_INVALIDARG;
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}
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// Compute source bytes-per-pixel
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size_t sbpp = BitsPerPixel(srcImage.format);
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if (!sbpp)
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return E_FAIL;
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if (sbpp < 8)
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{
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// We don't support monochrome (DXGI_FORMAT_R1_UNORM)
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return HRESULT_FROM_WIN32(ERROR_NOT_SUPPORTED);
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}
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const uint8_t* pEndSrc = srcImage.pixels + srcImage.rowPitch*srcImage.height;
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const uint8_t* pEndDest = dstImage.pixels + dstImage.rowPitch*dstImage.height;
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// Round to bytes
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sbpp = (sbpp + 7) / 8;
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const uint8_t* pSrc = srcImage.pixels + (srcRect.y * srcImage.rowPitch) + (srcRect.x * sbpp);
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if (srcImage.format == dstImage.format)
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{
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// Direct copy case (avoid intermediate conversions)
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uint8_t* pDest = dstImage.pixels + (yOffset * dstImage.rowPitch) + (xOffset * sbpp);
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const size_t copyW = srcRect.w * sbpp;
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for (size_t h = 0; h < srcRect.h; ++h)
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{
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if (((pSrc + copyW) > pEndSrc) || (pDest > pEndDest))
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return E_FAIL;
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memcpy_s(pDest, pEndDest - pDest, pSrc, copyW);
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pSrc += srcImage.rowPitch;
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pDest += dstImage.rowPitch;
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}
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return S_OK;
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}
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// Compute destination bytes-per-pixel (not the same format as source)
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size_t dbpp = BitsPerPixel(dstImage.format);
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if (!dbpp)
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return E_FAIL;
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if (dbpp < 8)
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{
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// We don't support monochrome (DXGI_FORMAT_R1_UNORM)
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return HRESULT_FROM_WIN32(ERROR_NOT_SUPPORTED);
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}
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// Round to bytes
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dbpp = (dbpp + 7) / 8;
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uint8_t* pDest = dstImage.pixels + (yOffset * dstImage.rowPitch) + (xOffset * dbpp);
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ScopedAlignedArrayXMVECTOR scanline(reinterpret_cast<XMVECTOR*>(_aligned_malloc((sizeof(XMVECTOR)*srcRect.w), 16)));
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if (!scanline)
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return E_OUTOFMEMORY;
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const size_t copyS = srcRect.w * sbpp;
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const size_t copyD = srcRect.w * dbpp;
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for (size_t h = 0; h < srcRect.h; ++h)
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{
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if (((pSrc + copyS) > pEndSrc) || ((pDest + copyD) > pEndDest))
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return E_FAIL;
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if (!_LoadScanline(scanline.get(), srcRect.w, pSrc, copyS, srcImage.format))
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return E_FAIL;
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_ConvertScanline(scanline.get(), srcRect.w, dstImage.format, srcImage.format, filter);
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if (!_StoreScanline(pDest, copyD, dstImage.format, scanline.get(), srcRect.w))
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return E_FAIL;
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pSrc += srcImage.rowPitch;
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pDest += dstImage.rowPitch;
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}
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return S_OK;
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}
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//-------------------------------------------------------------------------------------
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// Computes the Mean-Squared-Error (MSE) between two images
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//-------------------------------------------------------------------------------------
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_Use_decl_annotations_
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HRESULT DirectX::ComputeMSE(
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const Image& image1,
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const Image& image2,
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float& mse,
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float* mseV,
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DWORD flags)
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{
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if (!image1.pixels || !image2.pixels)
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return E_POINTER;
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if (image1.width != image2.width || image1.height != image2.height)
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return E_INVALIDARG;
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if (!IsValid(image1.format) || !IsValid(image2.format))
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return E_INVALIDARG;
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if (IsPlanar(image1.format) || IsPlanar(image2.format)
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|| IsPalettized(image1.format) || IsPalettized(image2.format)
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|| IsTypeless(image1.format) || IsTypeless(image2.format))
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return HRESULT_FROM_WIN32(ERROR_NOT_SUPPORTED);
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if (IsCompressed(image1.format))
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{
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if (IsCompressed(image2.format))
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{
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// Case 1: both images are compressed, expand to RGBA32F
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ScratchImage temp1;
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HRESULT hr = Decompress(image1, DXGI_FORMAT_R32G32B32A32_FLOAT, temp1);
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if (FAILED(hr))
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return hr;
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ScratchImage temp2;
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hr = Decompress(image2, DXGI_FORMAT_R32G32B32A32_FLOAT, temp2);
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if (FAILED(hr))
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return hr;
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const Image* img1 = temp1.GetImage(0, 0, 0);
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const Image* img2 = temp2.GetImage(0, 0, 0);
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if (!img1 || !img2)
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return E_POINTER;
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return ComputeMSE_(*img1, *img2, mse, mseV, flags);
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}
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else
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{
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// Case 2: image1 is compressed, expand to RGBA32F
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ScratchImage temp;
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HRESULT hr = Decompress(image1, DXGI_FORMAT_R32G32B32A32_FLOAT, temp);
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if (FAILED(hr))
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return hr;
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const Image* img = temp.GetImage(0, 0, 0);
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if (!img)
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return E_POINTER;
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return ComputeMSE_(*img, image2, mse, mseV, flags);
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}
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}
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else
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{
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if (IsCompressed(image2.format))
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{
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// Case 3: image2 is compressed, expand to RGBA32F
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ScratchImage temp;
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HRESULT hr = Decompress(image2, DXGI_FORMAT_R32G32B32A32_FLOAT, temp);
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if (FAILED(hr))
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return hr;
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const Image* img = temp.GetImage(0, 0, 0);
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if (!img)
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return E_POINTER;
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return ComputeMSE_(image1, *img, mse, mseV, flags);
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}
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else
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{
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// Case 4: neither image is compressed
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return ComputeMSE_(image1, image2, mse, mseV, flags);
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}
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}
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}
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//-------------------------------------------------------------------------------------
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// Evaluates a user-supplied function for all the pixels in the image
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//-------------------------------------------------------------------------------------
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_Use_decl_annotations_
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HRESULT DirectX::Evaluate(
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const Image& image,
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std::function<void __cdecl(_In_reads_(width) const XMVECTOR* pixels, size_t width, size_t y)> pixelFunc)
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{
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if (image.width > UINT32_MAX
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|| image.height > UINT32_MAX)
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return E_INVALIDARG;
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if (!IsValid(image.format))
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return E_INVALIDARG;
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if (IsPlanar(image.format) || IsPalettized(image.format) || IsTypeless(image.format))
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return HRESULT_FROM_WIN32(ERROR_NOT_SUPPORTED);
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if (IsCompressed(image.format))
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{
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ScratchImage temp;
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HRESULT hr = Decompress(image, DXGI_FORMAT_R32G32B32A32_FLOAT, temp);
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if (FAILED(hr))
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return hr;
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const Image* img = temp.GetImage(0, 0, 0);
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if (!img)
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return E_POINTER;
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return Evaluate_(*img, pixelFunc);
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}
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else
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{
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return Evaluate_(image, pixelFunc);
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}
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}
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//-------------------------------------------------------------------------------------
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// Use a user-supplied function to compute a new image from an input image
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//-------------------------------------------------------------------------------------
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_Use_decl_annotations_
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HRESULT DirectX::Transform(
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const Image& image,
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std::function<void __cdecl(_Out_writes_(width) XMVECTOR* outPixels, _In_reads_(width) const XMVECTOR* inPixels, size_t width, size_t y)> pixelFunc,
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ScratchImage& result)
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{
|
|
if (image.width > UINT32_MAX
|
|
|| image.height > UINT32_MAX)
|
|
return E_INVALIDARG;
|
|
|
|
if (IsPlanar(image.format) || IsPalettized(image.format) || IsCompressed(image.format) || IsTypeless(image.format))
|
|
return HRESULT_FROM_WIN32(ERROR_NOT_SUPPORTED);
|
|
|
|
HRESULT hr = result.Initialize2D(image.format, image.width, image.height, 1, 1);
|
|
if (FAILED(hr))
|
|
return hr;
|
|
|
|
const Image* dimg = result.GetImage(0, 0, 0);
|
|
if (!dimg)
|
|
{
|
|
result.Release();
|
|
return E_POINTER;
|
|
}
|
|
|
|
hr = Transform_(image, pixelFunc, *dimg);
|
|
if (FAILED(hr))
|
|
{
|
|
result.Release();
|
|
return hr;
|
|
}
|
|
|
|
return S_OK;
|
|
}
|
|
|
|
_Use_decl_annotations_
|
|
HRESULT DirectX::Transform(
|
|
const Image* srcImages,
|
|
size_t nimages, const TexMetadata& metadata,
|
|
std::function<void __cdecl(_Out_writes_(width) XMVECTOR* outPixels, _In_reads_(width) const XMVECTOR* inPixels, size_t width, size_t y)> pixelFunc,
|
|
ScratchImage& result)
|
|
{
|
|
if (!srcImages || !nimages)
|
|
return E_INVALIDARG;
|
|
|
|
if (IsPlanar(metadata.format) || IsPalettized(metadata.format) || IsCompressed(metadata.format) || IsTypeless(metadata.format))
|
|
return HRESULT_FROM_WIN32(ERROR_NOT_SUPPORTED);
|
|
|
|
if (metadata.width > UINT32_MAX
|
|
|| metadata.height > UINT32_MAX)
|
|
return E_INVALIDARG;
|
|
|
|
if (metadata.IsVolumemap() && metadata.depth > UINT32_MAX)
|
|
return E_INVALIDARG;
|
|
|
|
HRESULT hr = result.Initialize(metadata);
|
|
if (FAILED(hr))
|
|
return hr;
|
|
|
|
if (nimages != result.GetImageCount())
|
|
{
|
|
result.Release();
|
|
return E_FAIL;
|
|
}
|
|
|
|
const Image* dest = result.GetImages();
|
|
if (!dest)
|
|
{
|
|
result.Release();
|
|
return E_POINTER;
|
|
}
|
|
|
|
switch (metadata.dimension)
|
|
{
|
|
case TEX_DIMENSION_TEXTURE1D:
|
|
case TEX_DIMENSION_TEXTURE2D:
|
|
for (size_t index = 0; index < nimages; ++index)
|
|
{
|
|
const Image& src = srcImages[index];
|
|
if (src.format != metadata.format)
|
|
{
|
|
result.Release();
|
|
return E_FAIL;
|
|
}
|
|
|
|
if ((src.width > UINT32_MAX) || (src.height > UINT32_MAX))
|
|
{
|
|
result.Release();
|
|
return E_FAIL;
|
|
}
|
|
|
|
const Image& dst = dest[index];
|
|
|
|
if (src.width != dst.width || src.height != dst.height)
|
|
{
|
|
result.Release();
|
|
return E_FAIL;
|
|
}
|
|
|
|
hr = Transform_(src, pixelFunc, dst);
|
|
if (FAILED(hr))
|
|
{
|
|
result.Release();
|
|
return hr;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case TEX_DIMENSION_TEXTURE3D:
|
|
{
|
|
size_t index = 0;
|
|
size_t d = metadata.depth;
|
|
for (size_t level = 0; level < metadata.mipLevels; ++level)
|
|
{
|
|
for (size_t slice = 0; slice < d; ++slice, ++index)
|
|
{
|
|
if (index >= nimages)
|
|
{
|
|
result.Release();
|
|
return E_FAIL;
|
|
}
|
|
|
|
const Image& src = srcImages[index];
|
|
if (src.format != metadata.format)
|
|
{
|
|
result.Release();
|
|
return E_FAIL;
|
|
}
|
|
|
|
if ((src.width > UINT32_MAX) || (src.height > UINT32_MAX))
|
|
{
|
|
result.Release();
|
|
return E_FAIL;
|
|
}
|
|
|
|
const Image& dst = dest[index];
|
|
|
|
if (src.width != dst.width || src.height != dst.height)
|
|
{
|
|
result.Release();
|
|
return E_FAIL;
|
|
}
|
|
|
|
hr = Transform_(src, pixelFunc, dst);
|
|
if (FAILED(hr))
|
|
{
|
|
result.Release();
|
|
return hr;
|
|
}
|
|
}
|
|
|
|
if (d > 1)
|
|
d >>= 1;
|
|
}
|
|
}
|
|
break;
|
|
|
|
default:
|
|
result.Release();
|
|
return E_FAIL;
|
|
}
|
|
|
|
return S_OK;
|
|
}
|