mirror of
https://github.com/microsoft/DirectXTex
synced 2024-11-21 20:10:05 +00:00
636 lines
17 KiB
C++
636 lines
17 KiB
C++
//--------------------------------------------------------------------------------------
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// File: DirectXTexEXR.cpp
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//
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// DirectXTex Auxilary functions for using the OpenEXR library
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//
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// Copyright (c) Microsoft Corporation.
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// Licensed under the MIT License.
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//--------------------------------------------------------------------------------------
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#include "DirectXTexP.h"
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#include "DirectXTexEXR.h"
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#include <DirectXPackedVector.h>
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#include <cassert>
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#include <cstdint>
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#include <exception>
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#include <memory>
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#include <stdexcept>
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#include <string>
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#include <tuple>
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//
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// Requires the OpenEXR library <http://www.openexr.com/> and its dependencies.
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//
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#ifdef __clang__
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#pragma clang diagnostic ignored "-Wswitch-enum"
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#pragma clang diagnostic push
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#pragma clang diagnostic ignored "-Wdeprecated-declarations"
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#pragma clang diagnostic ignored "-Wdeprecated-dynamic-exception-spec"
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#pragma clang diagnostic ignored "-Wfloat-equal"
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#pragma clang diagnostic ignored "-Wimplicit-int-conversion"
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#pragma clang diagnostic ignored "-Wlanguage-extension-token"
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#pragma clang diagnostic ignored "-Wold-style-cast"
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#pragma clang diagnostic ignored "-Wreserved-id-macro"
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#pragma clang diagnostic ignored "-Wshadow-field-in-constructor"
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#pragma clang diagnostic ignored "-Wsign-conversion"
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#pragma clang diagnostic ignored "-Wzero-as-null-pointer-constant"
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#endif
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#pragma warning(push)
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#pragma warning(disable : 4244 4996)
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#include <ImfRgbaFile.h>
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#include <ImfIO.h>
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#pragma warning(pop)
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#ifdef __clang__
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#pragma clang diagnostic pop
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#endif
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static_assert(sizeof(Imf::Rgba) == 8, "Mismatch size");
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using namespace DirectX;
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using PackedVector::XMHALF4;
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#ifdef _WIN32
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namespace
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{
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class com_exception : public std::exception
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{
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public:
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com_exception(HRESULT hr) noexcept : result(hr) {}
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const char* what() const noexcept override
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{
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static char s_str[64] = {};
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sprintf_s(s_str, "Failure with HRESULT of %08X", static_cast<unsigned int>(result));
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return s_str;
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}
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HRESULT get_result() const noexcept { return result; }
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private:
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HRESULT result;
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};
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class InputStream : public Imf::IStream
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{
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public:
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InputStream(HANDLE hFile, const char fileName[]) :
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IStream(fileName), m_hFile(hFile)
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{
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const LARGE_INTEGER dist = {};
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LARGE_INTEGER result;
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if (!SetFilePointerEx(m_hFile, dist, &result, FILE_END))
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{
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throw com_exception(HRESULT_FROM_WIN32(GetLastError()));
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}
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m_EOF = result.QuadPart;
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if (!SetFilePointerEx(m_hFile, dist, nullptr, FILE_BEGIN))
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{
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throw com_exception(HRESULT_FROM_WIN32(GetLastError()));
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}
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}
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InputStream(const InputStream&) = delete;
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InputStream& operator = (const InputStream&) = delete;
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InputStream(InputStream&&) = delete;
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InputStream& operator=(InputStream&&) = delete;
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bool read(char c[], int n) override
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{
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DWORD bytesRead;
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if (!ReadFile(m_hFile, c, static_cast<DWORD>(n), &bytesRead, nullptr))
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{
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throw com_exception(HRESULT_FROM_WIN32(GetLastError()));
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}
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const LARGE_INTEGER dist = {};
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LARGE_INTEGER result;
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if (!SetFilePointerEx(m_hFile, dist, &result, FILE_CURRENT))
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{
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throw com_exception(HRESULT_FROM_WIN32(GetLastError()));
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}
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return result.QuadPart >= m_EOF;
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}
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uint64_t tellg() override
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{
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const LARGE_INTEGER dist = {};
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LARGE_INTEGER result;
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if (!SetFilePointerEx(m_hFile, dist, &result, FILE_CURRENT))
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{
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throw com_exception(HRESULT_FROM_WIN32(GetLastError()));
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}
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return static_cast<uint64_t>(result.QuadPart);
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}
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void seekg(uint64_t pos) override
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{
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LARGE_INTEGER dist;
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dist.QuadPart = static_cast<LONGLONG>(pos);
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if (!SetFilePointerEx(m_hFile, dist, nullptr, FILE_BEGIN))
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{
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throw com_exception(HRESULT_FROM_WIN32(GetLastError()));
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}
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}
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void clear() override
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{
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SetLastError(0);
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}
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private:
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HANDLE m_hFile;
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LONGLONG m_EOF;
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};
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class OutputStream : public Imf::OStream
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{
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public:
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OutputStream(HANDLE hFile, const char fileName[]) :
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OStream(fileName), m_hFile(hFile) {}
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OutputStream(const OutputStream&) = delete;
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OutputStream& operator = (const OutputStream&) = delete;
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OutputStream(OutputStream&&) = delete;
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OutputStream& operator=(OutputStream&&) = delete;
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void write(const char c[], int n) override
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{
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DWORD bytesWritten;
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if (!WriteFile(m_hFile, c, static_cast<DWORD>(n), &bytesWritten, nullptr))
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{
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throw com_exception(HRESULT_FROM_WIN32(GetLastError()));
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}
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}
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uint64_t tellp() override
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{
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const LARGE_INTEGER dist = {};
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LARGE_INTEGER result;
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if (!SetFilePointerEx(m_hFile, dist, &result, FILE_CURRENT))
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{
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throw com_exception(HRESULT_FROM_WIN32(GetLastError()));
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}
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return static_cast<uint64_t>(result.QuadPart);
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}
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void seekp(uint64_t pos) override
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{
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LARGE_INTEGER dist;
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dist.QuadPart = static_cast<LONGLONG>(pos);
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if (!SetFilePointerEx(m_hFile, dist, nullptr, FILE_BEGIN))
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{
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throw com_exception(HRESULT_FROM_WIN32(GetLastError()));
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}
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}
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private:
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HANDLE m_hFile;
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};
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}
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#endif // _WIN32
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//=====================================================================================
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// Entry-points
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//=====================================================================================
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//-------------------------------------------------------------------------------------
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// Obtain metadata from EXR file on disk
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//-------------------------------------------------------------------------------------
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_Use_decl_annotations_
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HRESULT DirectX::GetMetadataFromEXRFile(const wchar_t* szFile, TexMetadata& metadata)
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{
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if (!szFile)
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return E_INVALIDARG;
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#ifdef _WIN32
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std::string fileName;
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const int nameLength = WideCharToMultiByte(CP_UTF8, 0, szFile, -1, nullptr, 0, nullptr, nullptr);
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if (nameLength > 0)
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{
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fileName.resize(nameLength);
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const int result = WideCharToMultiByte(CP_UTF8, 0, szFile, -1, fileName.data(), nameLength, nullptr, nullptr);
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if (result <= 0)
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{
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fileName.clear();
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}
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}
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#if (_WIN32_WINNT >= _WIN32_WINNT_WIN8)
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ScopedHandle hFile(safe_handle(CreateFile2(
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szFile,
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GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING,
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nullptr)));
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#else
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ScopedHandle hFile(safe_handle(CreateFileW(
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szFile,
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GENERIC_READ, FILE_SHARE_READ,
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nullptr,
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OPEN_EXISTING, FILE_FLAG_SEQUENTIAL_SCAN,
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nullptr)));
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#endif
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if (!hFile)
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{
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return HRESULT_FROM_WIN32(GetLastError());
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}
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InputStream stream(hFile.get(), fileName.c_str());
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#else
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std::wstring wFileName(szFile);
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std::string fileName(wFileName.cbegin(), wFileName.cend());
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#endif
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HRESULT hr = S_OK;
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try
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{
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#ifdef _WIN32
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Imf::RgbaInputFile file(stream);
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#else
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Imf::RgbaInputFile file(fileName.c_str());
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#endif
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const auto dw = file.dataWindow();
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const int width = dw.max.x - dw.min.x + 1;
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int height = dw.max.y - dw.min.y + 1;
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size_t arraySize = 1;
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if (width < 1 || height < 1)
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return E_FAIL;
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if (file.header().find("envmap") != file.header().end())
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{
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if (width == height / 6)
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{
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height = width;
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arraySize = 6;
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}
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}
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metadata.width = static_cast<size_t>(width);
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metadata.height = static_cast<size_t>(height);
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metadata.depth = metadata.mipLevels = 1;
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metadata.arraySize = arraySize;
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metadata.format = DXGI_FORMAT_R16G16B16A16_FLOAT;
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metadata.dimension = TEX_DIMENSION_TEXTURE2D;
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}
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#ifdef _WIN32
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catch (const com_exception& exc)
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{
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#ifdef _DEBUG
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OutputDebugStringA(exc.what());
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#endif
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hr = exc.get_result();
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}
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#endif
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#if defined(_WIN32) && defined(_DEBUG)
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catch (const std::exception& exc)
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{
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OutputDebugStringA(exc.what());
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hr = E_FAIL;
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}
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#else
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catch (const std::exception&)
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{
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hr = E_FAIL;
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}
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#endif
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catch (...)
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{
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hr = E_UNEXPECTED;
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}
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return hr;
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}
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//-------------------------------------------------------------------------------------
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// Load a EXR file from disk
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//-------------------------------------------------------------------------------------
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_Use_decl_annotations_
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HRESULT DirectX::LoadFromEXRFile(const wchar_t* szFile, TexMetadata* metadata, ScratchImage& image)
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{
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if (!szFile)
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return E_INVALIDARG;
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image.Release();
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if (metadata)
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{
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memset(metadata, 0, sizeof(TexMetadata));
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}
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#ifdef _WIN32
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std::string fileName;
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const int nameLength = WideCharToMultiByte(CP_UTF8, 0, szFile, -1, nullptr, 0, nullptr, nullptr);
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if (nameLength > 0)
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{
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fileName.resize(nameLength);
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const int result = WideCharToMultiByte(CP_UTF8, 0, szFile, -1, fileName.data(), nameLength, nullptr, nullptr);
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if (result <= 0)
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{
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fileName.clear();
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}
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}
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#if (_WIN32_WINNT >= _WIN32_WINNT_WIN8)
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ScopedHandle hFile(safe_handle(CreateFile2(
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szFile,
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GENERIC_READ, FILE_SHARE_READ, OPEN_EXISTING,
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nullptr)));
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#else
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ScopedHandle hFile(safe_handle(CreateFileW(
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szFile,
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GENERIC_READ, FILE_SHARE_READ,
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nullptr,
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OPEN_EXISTING, FILE_FLAG_SEQUENTIAL_SCAN,
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nullptr)));
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#endif
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if (!hFile)
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{
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return HRESULT_FROM_WIN32(GetLastError());
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}
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InputStream stream(hFile.get(), fileName.c_str());
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#else
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std::wstring wFileName(szFile);
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std::string fileName(wFileName.cbegin(), wFileName.cend());
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#endif
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HRESULT hr = S_OK;
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try
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{
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#ifdef _WIN32
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Imf::RgbaInputFile file(stream);
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#else
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Imf::RgbaInputFile file(fileName.c_str());
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#endif
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auto const dw = file.dataWindow();
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const int width = dw.max.x - dw.min.x + 1;
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int height = dw.max.y - dw.min.y + 1;
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size_t arraySize = 1;
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if (width < 1 || height < 1)
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return E_FAIL;
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if (file.header().find("envmap") != file.header().end())
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{
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if (width == height / 6)
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{
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height = width;
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arraySize = 6;
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}
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}
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if (metadata)
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{
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metadata->width = static_cast<size_t>(width);
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metadata->height = static_cast<size_t>(height);
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metadata->depth = metadata->mipLevels = 1;
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metadata->arraySize = arraySize;
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metadata->format = DXGI_FORMAT_R16G16B16A16_FLOAT;
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metadata->dimension = TEX_DIMENSION_TEXTURE2D;
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}
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hr = image.Initialize2D(DXGI_FORMAT_R16G16B16A16_FLOAT,
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static_cast<size_t>(width), static_cast<size_t>(height), arraySize, 1u);
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if (FAILED(hr))
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return hr;
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file.setFrameBuffer(reinterpret_cast<Imf::Rgba*>(image.GetPixels()) - dw.min.x - dw.min.y * width, 1, static_cast<size_t>(width));
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file.readPixels(dw.min.y, dw.max.y);
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}
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#ifdef _WIN32
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catch (const com_exception& exc)
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{
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#ifdef _DEBUG
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OutputDebugStringA(exc.what());
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#endif
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hr = exc.get_result();
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}
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#endif
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#if defined(_WIN32) && defined(_DEBUG)
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catch (const std::exception& exc)
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{
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OutputDebugStringA(exc.what());
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hr = E_FAIL;
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}
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#else
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catch (const std::exception&)
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{
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hr = E_FAIL;
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}
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#endif
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catch (...)
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{
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hr = E_UNEXPECTED;
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}
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if (FAILED(hr))
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{
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image.Release();
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}
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return hr;
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}
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//-------------------------------------------------------------------------------------
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// Save a EXR file to disk
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//-------------------------------------------------------------------------------------
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_Use_decl_annotations_
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HRESULT DirectX::SaveToEXRFile(const Image& image, const wchar_t* szFile)
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{
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if (!szFile)
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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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if (image.width > INT32_MAX || image.height > INT32_MAX)
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return /* HRESULT_FROM_WIN32(ERROR_NOT_SUPPORTED) */ static_cast<HRESULT>(0x80070032L);
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switch (image.format)
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{
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case DXGI_FORMAT_R16G16B16A16_FLOAT:
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if ((image.rowPitch % 8) > 0)
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return E_FAIL;
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break;
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case DXGI_FORMAT_R32G32B32A32_FLOAT:
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case DXGI_FORMAT_R32G32B32_FLOAT:
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break;
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default:
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return /* HRESULT_FROM_WIN32(ERROR_NOT_SUPPORTED) */ static_cast<HRESULT>(0x80070032L);
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}
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#ifdef _WIN32
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std::string fileName;
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const int nameLength = WideCharToMultiByte(CP_UTF8, 0, szFile, -1, nullptr, 0, nullptr, nullptr);
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if (nameLength > 0)
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{
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fileName.resize(nameLength);
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const int result = WideCharToMultiByte(CP_UTF8, 0, szFile, -1, fileName.data(), nameLength, nullptr, nullptr);
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if (result <= 0)
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{
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fileName.clear();
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}
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}
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// Create file and write header
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#if (_WIN32_WINNT >= _WIN32_WINNT_WIN8)
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ScopedHandle hFile(safe_handle(CreateFile2(
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szFile,
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GENERIC_WRITE, 0, CREATE_ALWAYS,
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nullptr)));
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#else
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ScopedHandle hFile(safe_handle(CreateFileW(
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szFile,
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GENERIC_WRITE, 0,
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nullptr,
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CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL,
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nullptr)));
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#endif
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if (!hFile)
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{
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return HRESULT_FROM_WIN32(GetLastError());
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}
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auto_delete_file delonfail(hFile.get());
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OutputStream stream(hFile.get(), fileName.c_str());
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#else
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std::wstring wFileName(szFile);
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std::string fileName(wFileName.cbegin(), wFileName.cend());
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#endif
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HRESULT hr = S_OK;
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try
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{
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const int width = static_cast<int>(image.width);
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const int height = static_cast<int>(image.height);
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#ifdef _WIN32
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Imf::RgbaOutputFile file(stream, Imf::Header(width, height), Imf::WRITE_RGBA);
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#else
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Imf::RgbaOutputFile file(fileName.c_str(), Imf::Header(width, height), Imf::WRITE_RGBA);
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#endif
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if (image.format == DXGI_FORMAT_R16G16B16A16_FLOAT)
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{
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file.setFrameBuffer(reinterpret_cast<const Imf::Rgba*>(image.pixels), 1, image.rowPitch / 8);
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file.writePixels(height);
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}
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else
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{
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const uint64_t bytes = image.width * image.height;
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if (bytes > UINT32_MAX)
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{
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return /* HRESULT_FROM_WIN32(ERROR_ARITHMETIC_OVERFLOW) */ static_cast<HRESULT>(0x80070216L);
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}
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std::unique_ptr<XMHALF4> temp(new (std::nothrow) XMHALF4[static_cast<size_t>(bytes)]);
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if (!temp)
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return E_OUTOFMEMORY;
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file.setFrameBuffer(reinterpret_cast<const Imf::Rgba*>(temp.get()), 1, image.width);
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auto sPtr = image.pixels;
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auto dPtr = temp.get();
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if (image.format == DXGI_FORMAT_R32G32B32A32_FLOAT)
|
|
{
|
|
for (int j = 0; j < height; ++j)
|
|
{
|
|
auto srcPtr = reinterpret_cast<const XMFLOAT4*>(sPtr);
|
|
auto destPtr = dPtr;
|
|
for (int k = 0; k < width; ++k, ++srcPtr, ++destPtr)
|
|
{
|
|
const XMVECTOR v = XMLoadFloat4(srcPtr);
|
|
PackedVector::XMStoreHalf4(destPtr, v);
|
|
}
|
|
|
|
sPtr += image.rowPitch;
|
|
dPtr += width;
|
|
|
|
file.writePixels(1);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
assert(image.format == DXGI_FORMAT_R32G32B32_FLOAT);
|
|
|
|
for (int j = 0; j < height; ++j)
|
|
{
|
|
auto srcPtr = reinterpret_cast<const XMFLOAT3*>(sPtr);
|
|
auto destPtr = dPtr;
|
|
for (int k = 0; k < width; ++k, ++srcPtr, ++destPtr)
|
|
{
|
|
XMVECTOR v = XMLoadFloat3(srcPtr);
|
|
v = XMVectorSelect(g_XMIdentityR3, v, g_XMSelect1110);
|
|
PackedVector::XMStoreHalf4(destPtr, v);
|
|
}
|
|
|
|
sPtr += image.rowPitch;
|
|
dPtr += width;
|
|
|
|
file.writePixels(1);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
#ifdef _WIN32
|
|
catch (const com_exception& exc)
|
|
{
|
|
#ifdef _DEBUG
|
|
OutputDebugStringA(exc.what());
|
|
#endif
|
|
hr = exc.get_result();
|
|
}
|
|
#endif
|
|
#if defined(_WIN32) && defined(_DEBUG)
|
|
catch (const std::exception& exc)
|
|
{
|
|
OutputDebugStringA(exc.what());
|
|
hr = E_FAIL;
|
|
}
|
|
#else
|
|
catch (const std::exception&)
|
|
{
|
|
hr = E_FAIL;
|
|
}
|
|
#endif
|
|
catch (...)
|
|
{
|
|
hr = E_UNEXPECTED;
|
|
}
|
|
|
|
if (FAILED(hr))
|
|
return hr;
|
|
|
|
#ifdef _WIN32
|
|
delonfail.clear();
|
|
#endif
|
|
|
|
return S_OK;
|
|
}
|