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Resync'd ScreenGrab

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This commit is contained in:
Chuck Walbourn 2016-02-23 12:21:38 -08:00
parent c64466e096
commit f732044b20
1 changed files with 76 additions and 5 deletions
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81
ScreenGrab/ScreenGrab.cpp
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@ -43,6 +43,17 @@
#include <algorithm>
#include <memory>
// VS 2010/2012 do not support =default =delete
#ifndef DIRECTX_CTOR_DEFAULT
#if defined(_MSC_VER) && (_MSC_VER < 1800)
#define DIRECTX_CTOR_DEFAULT {}
#define DIRECTX_CTOR_DELETE ;
#else
#define DIRECTX_CTOR_DEFAULT =default;
#define DIRECTX_CTOR_DELETE =delete;
#endif
#endif
#include "ScreenGrab.h"
using Microsoft::WRL::ComPtr;
@ -203,12 +214,64 @@ static const DDS_PIXELFORMAT DDSPF_DX10 =
{ sizeof(DDS_PIXELFORMAT), DDS_FOURCC, MAKEFOURCC('D','X','1','0'), 0, 0, 0, 0, 0 };
//---------------------------------------------------------------------------------
struct handle_closer { void operator()(HANDLE h) { if (h) CloseHandle(h); } };
namespace
{
struct handle_closer { void operator()(HANDLE h) { if (h) CloseHandle(h); } };
typedef public std::unique_ptr<void, handle_closer> ScopedHandle;
typedef public std::unique_ptr<void, handle_closer> ScopedHandle;
inline HANDLE safe_handle( HANDLE h ) { return (h == INVALID_HANDLE_VALUE) ? 0 : h; }
inline HANDLE safe_handle( HANDLE h ) { return (h == INVALID_HANDLE_VALUE) ? 0 : h; }
class auto_delete_file
{
public:
auto_delete_file(HANDLE hFile) : m_handle(hFile) {}
~auto_delete_file()
{
if (m_handle)
{
FILE_DISPOSITION_INFO info = {0};
info.DeleteFile = TRUE;
(void)SetFileInformationByHandle(m_handle, FileDispositionInfo, &info, sizeof(info));
}
}
void clear() { m_handle = 0; }
private:
HANDLE m_handle;
auto_delete_file(const auto_delete_file&) DIRECTX_CTOR_DELETE;
auto_delete_file& operator=(const auto_delete_file&) DIRECTX_CTOR_DELETE;
};
#if !defined(WINAPI_FAMILY) || (WINAPI_FAMILY != WINAPI_FAMILY_PHONE_APP) || (_WIN32_WINNT > _WIN32_WINNT_WIN8)
class auto_delete_file_wic
{
public:
auto_delete_file_wic(ComPtr<IWICStream>& hFile, LPCWSTR szFile) : m_handle(hFile), m_filename(szFile) {}
~auto_delete_file_wic()
{
if (m_filename)
{
m_handle.Reset();
DeleteFileW(m_filename);
}
}
void clear() { m_filename = 0; }
private:
LPCWSTR m_filename;
ComPtr<IWICStream>& m_handle;
auto_delete_file_wic(const auto_delete_file_wic&) DIRECTX_CTOR_DELETE;
auto_delete_file_wic& operator=(const auto_delete_file_wic&) DIRECTX_CTOR_DELETE;
};
#endif
}
//--------------------------------------------------------------------------------------
// Return the BPP for a particular format
@ -735,13 +798,15 @@ HRESULT DirectX::SaveDDSTextureToFile( _In_ ID3D11DeviceContext* pContext,
// Create file
#if (_WIN32_WINNT >= _WIN32_WINNT_WIN8)
ScopedHandle hFile( safe_handle( CreateFile2( fileName, GENERIC_WRITE, 0, CREATE_ALWAYS, 0 ) ) );
ScopedHandle hFile( safe_handle( CreateFile2( fileName, GENERIC_WRITE | DELETE, 0, CREATE_ALWAYS, 0 ) ) );
#else
ScopedHandle hFile( safe_handle( CreateFileW( fileName, GENERIC_WRITE, 0, 0, CREATE_ALWAYS, 0, 0 ) ) );
ScopedHandle hFile( safe_handle( CreateFileW( fileName, GENERIC_WRITE | DELETE, 0, 0, CREATE_ALWAYS, 0, 0 ) ) );
#endif
if ( !hFile )
return HRESULT_FROM_WIN32( GetLastError() );
auto_delete_file delonfail(hFile.get());
// Setup header
const size_t MAX_HEADER_SIZE = sizeof(uint32_t) + sizeof(DDS_HEADER) + sizeof(DDS_HEADER_DXT10);
uint8_t fileHeader[ MAX_HEADER_SIZE ];
@ -872,6 +937,8 @@ HRESULT DirectX::SaveDDSTextureToFile( _In_ ID3D11DeviceContext* pContext,
if ( bytesWritten != slicePitch )
return E_FAIL;
delonfail.clear();
return S_OK;
}
@ -956,6 +1023,8 @@ HRESULT DirectX::SaveWICTextureToFile( _In_ ID3D11DeviceContext* pContext,
if ( FAILED(hr) )
return hr;
auto_delete_file_wic delonfail(stream, fileName);
ComPtr<IWICBitmapEncoder> encoder;
hr = pWIC->CreateEncoder( guidContainerFormat, 0, encoder.GetAddressOf() );
if ( FAILED(hr) )
@ -1157,6 +1226,8 @@ HRESULT DirectX::SaveWICTextureToFile( _In_ ID3D11DeviceContext* pContext,
if ( FAILED(hr) )
return hr;
delonfail.clear();
return S_OK;
}