qt_rtmp_demo/media/DXGICaptureHelper.h

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2023-11-12 16:13:24 +00:00
/*****************************************************************************
* DXGICaptureHelper.h
*
* Copyright (C) 2020 Gokhan Erdogdu <gokhan_erdogdu - at - yahoo - dot - com>
*
* DXGICapture is free software; you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by the Free
* Software Foundation; either version 2.1 of the License, or (at your option)
* any later version.
*
* DXGICapture is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
* FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
* details.
*
******************************************************************************/
#pragma once
#ifndef __DXGICAPTUREHELPER_H__
#define __DXGICAPTUREHELPER_H__
#include <atlbase.h>
#include <Shlwapi.h>
#include <dxgi1_2.h>
#include <d3d11.h>
#include <d2d1.h>
#include <wincodec.h>
#include "DXGICaptureTypes.h"
#pragma comment (lib, "Shlwapi.lib")
//
// class DXGICaptureHelper
//
class DXGICaptureHelper
{
public:
static
COM_DECLSPEC_NOTHROW
inline
HRESULT
ConvertDxgiOutputToMonitorInfo(
_In_ const DXGI_OUTPUT_DESC *pDxgiOutput,
_In_ int monitorIdx,
_Out_ tagDublicatorMonitorInfo *pOutVal
)
{
CHECK_POINTER(pOutVal);
// reset output parameter
RtlZeroMemory(pOutVal, sizeof(tagDublicatorMonitorInfo));
CHECK_POINTER_EX(pDxgiOutput, E_INVALIDARG);
switch (pDxgiOutput->Rotation)
{
case DXGI_MODE_ROTATION_UNSPECIFIED:
case DXGI_MODE_ROTATION_IDENTITY:
pOutVal->RotationDegrees = 0;
break;
case DXGI_MODE_ROTATION_ROTATE90:
pOutVal->RotationDegrees = 90;
break;
case DXGI_MODE_ROTATION_ROTATE180:
pOutVal->RotationDegrees = 180;
break;
case DXGI_MODE_ROTATION_ROTATE270:
pOutVal->RotationDegrees = 270;
break;
}
pOutVal->Idx = monitorIdx;
pOutVal->Bounds.X = pDxgiOutput->DesktopCoordinates.left;
pOutVal->Bounds.Y = pDxgiOutput->DesktopCoordinates.top;
pOutVal->Bounds.Width = pDxgiOutput->DesktopCoordinates.right - pDxgiOutput->DesktopCoordinates.left;
pOutVal->Bounds.Height = pDxgiOutput->DesktopCoordinates.bottom - pDxgiOutput->DesktopCoordinates.top;
wsprintfW(pOutVal->DisplayName, L"Display %d: %ldx%ld @ %ld,%ld"
, monitorIdx + 1
, pOutVal->Bounds.Width, pOutVal->Bounds.Height
, pOutVal->Bounds.X, pOutVal->Bounds.Y);
return S_OK;
} // ConvertDxgiOutputToMonitorInfo
static
COM_DECLSPEC_NOTHROW
inline
BOOL
IsEqualMonitorInfo(
_In_ const tagDublicatorMonitorInfo *p1,
_In_ const tagDublicatorMonitorInfo *p2
)
{
if (nullptr == p1) {
return (nullptr == p2);
}
if (nullptr == p2) {
return FALSE;
}
return memcmp((const void*)p1, (const void*)p2, sizeof(tagDublicatorMonitorInfo)) == 0;
} // IsEqualMonitorInfo
static
COM_DECLSPEC_NOTHROW
inline
HRESULT
IsRendererInfoValid(
_In_ const tagRendererInfo *pRendererInfo
)
{
CHECK_POINTER_EX(pRendererInfo, E_INVALIDARG);
if (pRendererInfo->SrcFormat != DXGI_FORMAT_B8G8R8A8_UNORM) {
return D2DERR_UNSUPPORTED_PIXEL_FORMAT;
}
if (pRendererInfo->SizeMode != tagFrameSizeMode_Normal) {
if ((pRendererInfo->OutputSize.Width <= 0) || (pRendererInfo->OutputSize.Height <= 0)) {
return D2DERR_BITMAP_BOUND_AS_TARGET;
}
}
if ((pRendererInfo->DstBounds.Width <= 0) || (pRendererInfo->DstBounds.Height <= 0) ||
(pRendererInfo->SrcBounds.Width <= 0) || (pRendererInfo->SrcBounds.Height <= 0))
{
return D2DERR_ORIGINAL_TARGET_NOT_BOUND;
}
return S_OK;
}
static
COM_DECLSPEC_NOTHROW
inline
HRESULT
CalculateRendererInfo(
_In_ const DXGI_OUTDUPL_DESC *pDxgiOutputDuplDesc,
_Inout_ tagRendererInfo *pRendererInfo
)
{
CHECK_POINTER_EX(pDxgiOutputDuplDesc, E_INVALIDARG);
CHECK_POINTER_EX(pRendererInfo, E_INVALIDARG);
pRendererInfo->SrcFormat = pDxgiOutputDuplDesc->ModeDesc.Format;
// get rotate state
switch (pDxgiOutputDuplDesc->Rotation)
{
case DXGI_MODE_ROTATION_ROTATE90:
pRendererInfo->RotationDegrees = 90.0f;
pRendererInfo->SrcBounds.X = 0;
pRendererInfo->SrcBounds.Y = 0;
pRendererInfo->SrcBounds.Width = pDxgiOutputDuplDesc->ModeDesc.Height;
pRendererInfo->SrcBounds.Height = pDxgiOutputDuplDesc->ModeDesc.Width;
break;
case DXGI_MODE_ROTATION_ROTATE180:
pRendererInfo->RotationDegrees = 180.0;
pRendererInfo->SrcBounds.X = 0;
pRendererInfo->SrcBounds.Y = 0;
pRendererInfo->SrcBounds.Width = pDxgiOutputDuplDesc->ModeDesc.Width;
pRendererInfo->SrcBounds.Height = pDxgiOutputDuplDesc->ModeDesc.Height;
break;
case DXGI_MODE_ROTATION_ROTATE270:
pRendererInfo->RotationDegrees = 270.0f;
pRendererInfo->SrcBounds.X = 0;
pRendererInfo->SrcBounds.Y = 0;
pRendererInfo->SrcBounds.Width = pDxgiOutputDuplDesc->ModeDesc.Height;
pRendererInfo->SrcBounds.Height = pDxgiOutputDuplDesc->ModeDesc.Width;
break;
default: // OR DXGI_MODE_ROTATION_IDENTITY:
pRendererInfo->RotationDegrees = 0.0f;
pRendererInfo->SrcBounds.X = 0;
pRendererInfo->SrcBounds.Y = 0;
pRendererInfo->SrcBounds.Width = pDxgiOutputDuplDesc->ModeDesc.Width;
pRendererInfo->SrcBounds.Height = pDxgiOutputDuplDesc->ModeDesc.Height;
break;
}
// force rotate
switch (pRendererInfo->RotationMode)
{
case tagFrameRotationMode::tagFrameRotationMode_Identity:
pRendererInfo->RotationDegrees = 0.0f;
break;
case tagFrameRotationMode::tagFrameRotationMode_90:
pRendererInfo->RotationDegrees = 90.0f;
break;
case tagFrameRotationMode::tagFrameRotationMode_180:
pRendererInfo->RotationDegrees = 180.0f;
break;
case tagFrameRotationMode::tagFrameRotationMode_270:
pRendererInfo->RotationDegrees = 270.0f;
break;
default: // tagFrameRotationMode::tagFrameRotationMode_Auto
break;
}
if (pRendererInfo->SizeMode == tagFrameSizeMode_Zoom)
{
FLOAT fSrcAspect, fOutAspect, fScaleFactor;
// center for output
pRendererInfo->DstBounds.Width = pRendererInfo->SrcBounds.Width;
pRendererInfo->DstBounds.Height = pRendererInfo->SrcBounds.Height;
pRendererInfo->DstBounds.X = (pRendererInfo->OutputSize.Width - pRendererInfo->SrcBounds.Width) >> 1;
pRendererInfo->DstBounds.Y = (pRendererInfo->OutputSize.Height - pRendererInfo->SrcBounds.Height) >> 1;
fOutAspect = (FLOAT)pRendererInfo->OutputSize.Width / pRendererInfo->OutputSize.Height;
if ((pRendererInfo->RotationDegrees == 0.0f) || (pRendererInfo->RotationDegrees == 180.0f))
{
fSrcAspect = (FLOAT)pRendererInfo->SrcBounds.Width / pRendererInfo->SrcBounds.Height;
if (fSrcAspect > fOutAspect)
{
fScaleFactor = (FLOAT)pRendererInfo->OutputSize.Width / pRendererInfo->SrcBounds.Width;
}
else
{
fScaleFactor = (FLOAT)pRendererInfo->OutputSize.Height / pRendererInfo->SrcBounds.Height;
}
}
else // 90 or 270 degree
{
fSrcAspect = (FLOAT)pRendererInfo->SrcBounds.Height / pRendererInfo->SrcBounds.Width;
if (fSrcAspect > fOutAspect)
{
fScaleFactor = (FLOAT)pRendererInfo->OutputSize.Width / pRendererInfo->SrcBounds.Height;
}
else
{
fScaleFactor = (FLOAT)pRendererInfo->OutputSize.Height / pRendererInfo->SrcBounds.Width;
}
}
pRendererInfo->ScaleX = fScaleFactor;
pRendererInfo->ScaleY = fScaleFactor;
}
else if (pRendererInfo->SizeMode == tagFrameSizeMode_CenterImage)
{
// center for output
pRendererInfo->DstBounds.Width = pRendererInfo->SrcBounds.Width;
pRendererInfo->DstBounds.Height = pRendererInfo->SrcBounds.Height;
pRendererInfo->DstBounds.X = (pRendererInfo->OutputSize.Width - pRendererInfo->SrcBounds.Width) >> 1;
pRendererInfo->DstBounds.Y = (pRendererInfo->OutputSize.Height - pRendererInfo->SrcBounds.Height) >> 1;
}
else if (pRendererInfo->SizeMode == tagFrameSizeMode_AutoSize)
{
// set the destination bounds
pRendererInfo->DstBounds.Width = pRendererInfo->SrcBounds.Width;
pRendererInfo->DstBounds.Height = pRendererInfo->SrcBounds.Height;
if ((pRendererInfo->RotationDegrees == 0.0f) || (pRendererInfo->RotationDegrees == 180.0f))
{
// same as the source size
pRendererInfo->OutputSize.Width = pRendererInfo->SrcBounds.Width;
pRendererInfo->OutputSize.Height = pRendererInfo->SrcBounds.Height;
}
else // 90 or 270 degree
{
// same as the source size
pRendererInfo->OutputSize.Width = pRendererInfo->SrcBounds.Height;
pRendererInfo->OutputSize.Height = pRendererInfo->SrcBounds.Width;
// center for output
pRendererInfo->DstBounds.X = (pRendererInfo->OutputSize.Width - pRendererInfo->SrcBounds.Width) >> 1;
pRendererInfo->DstBounds.Y = (pRendererInfo->OutputSize.Height - pRendererInfo->SrcBounds.Height) >> 1;
}
}
else if (pRendererInfo->SizeMode == tagFrameSizeMode_StretchImage)
{
// center for output
pRendererInfo->DstBounds.Width = pRendererInfo->SrcBounds.Width;
pRendererInfo->DstBounds.Height = pRendererInfo->SrcBounds.Height;
pRendererInfo->DstBounds.X = (pRendererInfo->OutputSize.Width - pRendererInfo->SrcBounds.Width) >> 1;
pRendererInfo->DstBounds.Y = (pRendererInfo->OutputSize.Height - pRendererInfo->SrcBounds.Height) >> 1;
if ((pRendererInfo->RotationDegrees == 0.0f) || (pRendererInfo->RotationDegrees == 180.0f))
{
pRendererInfo->ScaleX = (FLOAT)pRendererInfo->OutputSize.Width / pRendererInfo->DstBounds.Width;
pRendererInfo->ScaleY = (FLOAT)pRendererInfo->OutputSize.Height / pRendererInfo->DstBounds.Height;
}
else // 90 or 270 degree
{
pRendererInfo->ScaleX = (FLOAT)pRendererInfo->OutputSize.Width / pRendererInfo->DstBounds.Height;
pRendererInfo->ScaleY = (FLOAT)pRendererInfo->OutputSize.Height / pRendererInfo->DstBounds.Width;
}
}
else // tagFrameSizeMode_Normal
{
pRendererInfo->DstBounds.Width = pRendererInfo->SrcBounds.Width;
pRendererInfo->DstBounds.Height = pRendererInfo->SrcBounds.Height;
if (pRendererInfo->RotationDegrees == 90)
{
// set destination origin (bottom-left)
pRendererInfo->DstBounds.X = (pRendererInfo->OutputSize.Width - pRendererInfo->OutputSize.Height) >> 1;
pRendererInfo->DstBounds.Y = ((pRendererInfo->OutputSize.Width + pRendererInfo->OutputSize.Height) >> 1) - pRendererInfo->DstBounds.Height;
}
else if (pRendererInfo->RotationDegrees == 180.0f)
{
// set destination origin (bottom-right)
pRendererInfo->DstBounds.X = pRendererInfo->OutputSize.Width - pRendererInfo->DstBounds.Width;
pRendererInfo->DstBounds.Y = pRendererInfo->OutputSize.Height - pRendererInfo->DstBounds.Height;
}
else if (pRendererInfo->RotationDegrees == 270)
{
// set destination origin (top-right)
pRendererInfo->DstBounds.Y = (pRendererInfo->OutputSize.Height - pRendererInfo->OutputSize.Width) >> 1;
pRendererInfo->DstBounds.X = pRendererInfo->OutputSize.Width - pRendererInfo->DstBounds.Width - ((pRendererInfo->OutputSize.Width - pRendererInfo->OutputSize.Height) >> 1);
}
}
return S_OK;
}
static
COM_DECLSPEC_NOTHROW
inline
HRESULT
ResizeFrameBuffer(
_Inout_ tagFrameBufferInfo *pBufferInfo,
_In_ UINT uiNewSize
)
{
CHECK_POINTER(pBufferInfo);
if (uiNewSize <= pBufferInfo->BufferSize)
{
return S_FALSE; // no change
}
if (nullptr != pBufferInfo->Buffer) {
delete[] pBufferInfo->Buffer;
pBufferInfo->Buffer = nullptr;
}
pBufferInfo->Buffer = new (std::nothrow) BYTE[uiNewSize];
if (!(pBufferInfo->Buffer))
{
pBufferInfo->BufferSize = 0;
return E_OUTOFMEMORY;
}
pBufferInfo->BufferSize = uiNewSize;
return S_OK;
} // ResizeFrameBuffer
static
COM_DECLSPEC_NOTHROW
inline
HRESULT
GetMouse(
_In_ IDXGIOutputDuplication *pOutputDuplication,
_Inout_ tagMouseInfo *PtrInfo,
_In_ DXGI_OUTDUPL_FRAME_INFO *FrameInfo,
UINT MonitorIdx,
INT OffsetX,
INT OffsetY
)
{
CHECK_POINTER_EX(pOutputDuplication, E_INVALIDARG);
CHECK_POINTER_EX(PtrInfo, E_INVALIDARG);
CHECK_POINTER_EX(FrameInfo, E_INVALIDARG);
// A non-zero mouse update timestamp indicates that there is a mouse position update and optionally a shape change
if (FrameInfo->LastMouseUpdateTime.QuadPart == 0)
{
return S_OK;
}
bool UpdatePosition = true;
// Make sure we don't update pointer position wrongly
// If pointer is invisible, make sure we did not get an update from another output that the last time that said pointer
// was visible, if so, don't set it to invisible or update.
if (!FrameInfo->PointerPosition.Visible && (PtrInfo->WhoUpdatedPositionLast != MonitorIdx))
{
UpdatePosition = false;
}
// If two outputs both say they have a visible, only update if new update has newer timestamp
if (FrameInfo->PointerPosition.Visible && PtrInfo->Visible && (PtrInfo->WhoUpdatedPositionLast != MonitorIdx) && (PtrInfo->LastTimeStamp.QuadPart > FrameInfo->LastMouseUpdateTime.QuadPart))
{
UpdatePosition = false;
}
// Update position
if (UpdatePosition)
{
PtrInfo->Position.x = FrameInfo->PointerPosition.Position.x - OffsetX;
PtrInfo->Position.y = FrameInfo->PointerPosition.Position.y - OffsetY;
PtrInfo->WhoUpdatedPositionLast = MonitorIdx;
PtrInfo->LastTimeStamp = FrameInfo->LastMouseUpdateTime;
PtrInfo->Visible = FrameInfo->PointerPosition.Visible != 0;
}
// No new shape
if (FrameInfo->PointerShapeBufferSize == 0)
{
return S_OK;
}
// Old buffer too small
if (FrameInfo->PointerShapeBufferSize > PtrInfo->ShapeBufferSize)
{
if (PtrInfo->PtrShapeBuffer != nullptr)
{
delete[] PtrInfo->PtrShapeBuffer;
PtrInfo->PtrShapeBuffer = nullptr;
}
PtrInfo->PtrShapeBuffer = new (std::nothrow) BYTE[FrameInfo->PointerShapeBufferSize];
if (PtrInfo->PtrShapeBuffer == nullptr)
{
PtrInfo->ShapeBufferSize = 0;
return E_OUTOFMEMORY;
}
// Update buffer size
PtrInfo->ShapeBufferSize = FrameInfo->PointerShapeBufferSize;
}
// Get shape
UINT BufferSizeRequired;
HRESULT hr = pOutputDuplication->GetFramePointerShape(
FrameInfo->PointerShapeBufferSize,
reinterpret_cast<VOID*>(PtrInfo->PtrShapeBuffer),
&BufferSizeRequired,
&(PtrInfo->ShapeInfo)
);
if (FAILED(hr))
{
delete[] PtrInfo->PtrShapeBuffer;
PtrInfo->PtrShapeBuffer = nullptr;
PtrInfo->ShapeBufferSize = 0;
return hr;
}
return S_OK;
} // GetMouse
static
COM_DECLSPEC_NOTHROW
inline
HRESULT
ProcessMouseMask(
_In_ const tagMouseInfo *PtrInfo,
_In_ const DXGI_OUTPUT_DESC *DesktopDesc,
_Inout_ tagFrameBufferInfo *pBufferInfo
)
{
CHECK_POINTER_EX(PtrInfo, E_INVALIDARG);
CHECK_POINTER_EX(DesktopDesc, E_INVALIDARG);
CHECK_POINTER_EX(pBufferInfo, E_INVALIDARG);
if (!PtrInfo->Visible) {
return S_FALSE;
}
HRESULT hr = S_OK;
INT DesktopWidth = (INT)(DesktopDesc->DesktopCoordinates.right - DesktopDesc->DesktopCoordinates.left);
INT DesktopHeight = (INT)(DesktopDesc->DesktopCoordinates.bottom - DesktopDesc->DesktopCoordinates.top);
pBufferInfo->Bounds.X = PtrInfo->Position.x;
pBufferInfo->Bounds.Y = PtrInfo->Position.y;
pBufferInfo->Bounds.Width = PtrInfo->ShapeInfo.Width;
pBufferInfo->Bounds.Height = (PtrInfo->ShapeInfo.Type == DXGI_OUTDUPL_POINTER_SHAPE_TYPE_MONOCHROME)
? (INT)(PtrInfo->ShapeInfo.Height / 2)
: (INT)PtrInfo->ShapeInfo.Height;
pBufferInfo->Pitch = pBufferInfo->Bounds.Width * 4;
switch (PtrInfo->ShapeInfo.Type)
{
case DXGI_OUTDUPL_POINTER_SHAPE_TYPE_COLOR:
{
// Resize mouseshape buffer (if necessary)
hr = DXGICaptureHelper::ResizeFrameBuffer(pBufferInfo, PtrInfo->ShapeBufferSize);
if (FAILED(hr)) {
return hr;
}
// use current mouseshape buffer
// Copy mouseshape buffer
memcpy_s((void*)pBufferInfo->Buffer, pBufferInfo->BufferSize, (const void*)PtrInfo->PtrShapeBuffer, PtrInfo->ShapeBufferSize);
break;
}
case DXGI_OUTDUPL_POINTER_SHAPE_TYPE_MONOCHROME:
{
// Resize mouseshape buffer (if necessary)
hr = DXGICaptureHelper::ResizeFrameBuffer(pBufferInfo, pBufferInfo->Bounds.Height * pBufferInfo->Pitch);
if (FAILED(hr)) {
return hr;
}
UINT* InitBuffer32 = reinterpret_cast<UINT*>(pBufferInfo->Buffer);
for (INT Row = 0; Row < pBufferInfo->Bounds.Height; ++Row)
{
// Set mask
BYTE Mask = 0x80;
for (INT Col = 0; Col < pBufferInfo->Bounds.Width; ++Col)
{
BYTE XorMask = PtrInfo->PtrShapeBuffer[(Col / 8) + ((Row + (PtrInfo->ShapeInfo.Height / 2)) * (PtrInfo->ShapeInfo.Pitch))] & Mask;
// Set new pixel
InitBuffer32[(Row * pBufferInfo->Bounds.Width) + Col] = (XorMask) ? 0xFFFFFFFF : 0x00000000;
// Adjust mask
if (Mask == 0x01)
{
Mask = 0x80;
}
else
{
Mask = Mask >> 1;
}
}
}
break;
}
case DXGI_OUTDUPL_POINTER_SHAPE_TYPE_MASKED_COLOR:
{
// Resize mouseshape buffer (if necessary)
hr = DXGICaptureHelper::ResizeFrameBuffer(pBufferInfo, pBufferInfo->Bounds.Height * pBufferInfo->Pitch);
if (FAILED(hr)) {
return hr;
}
UINT* InitBuffer32 = reinterpret_cast<UINT*>(pBufferInfo->Buffer);
UINT* ShapeBuffer32 = reinterpret_cast<UINT*>(PtrInfo->PtrShapeBuffer);
for (INT Row = 0; Row < pBufferInfo->Bounds.Height; ++Row)
{
for (INT Col = 0; Col < pBufferInfo->Bounds.Width; ++Col)
{
InitBuffer32[(Row * pBufferInfo->Bounds.Width) + Col] = ShapeBuffer32[Col + (Row * (PtrInfo->ShapeInfo.Pitch / sizeof(UINT)))] | 0xFF000000;
}
}
break;
}
default:
return E_INVALIDARG;
}
UINT* InitBuffer32 = reinterpret_cast<UINT*>(pBufferInfo->Buffer);
UINT width = (UINT)pBufferInfo->Bounds.Width;
UINT height = (UINT)pBufferInfo->Bounds.Height;
switch (DesktopDesc->Rotation)
{
case DXGI_MODE_ROTATION_ROTATE90:
{
// Rotate -90 or +270
for (UINT i = 0; i < width; i++)
{
for (UINT j = 0; j < height; j++)
{
UINT I = j;
UINT J = width - 1 - i;
while ((i*height + j) >(I*width + J))
{
UINT p = I*width + J;
UINT tmp_i = p / height;
UINT tmp_j = p % height;
I = tmp_j;
J = width - 1 - tmp_i;
}
std::swap(*(InitBuffer32 + (i*height + j)), *(InitBuffer32 + (I*width + J)));
}
}
// translate bounds
std::swap(pBufferInfo->Bounds.Width, pBufferInfo->Bounds.Height);
INT nX = pBufferInfo->Bounds.Y;
INT nY = DesktopWidth - (INT)(pBufferInfo->Bounds.X + pBufferInfo->Bounds.Height);
pBufferInfo->Bounds.X = nX;
pBufferInfo->Bounds.Y = nY;
pBufferInfo->Pitch = pBufferInfo->Bounds.Width * 4;
} break;
case DXGI_MODE_ROTATION_ROTATE180:
{
// Rotate -180 or +180
if (height % 2 != 0)
{
//If N is odd reverse the middle row in the matrix
UINT j = height >> 1;
for (UINT i = 0; i < (width >> 1); i++)
{
std::swap(InitBuffer32[j * width + i], InitBuffer32[j * width + width - i - 1]);
}
}
for (UINT j = 0; j < (height >> 1); j++)
{
for (UINT i = 0; i < width; i++)
{
std::swap(InitBuffer32[j * width + i], InitBuffer32[(height - j - 1) * width + width - i - 1]);
}
}
// translate position
INT nX = DesktopWidth - (INT)(pBufferInfo->Bounds.X + pBufferInfo->Bounds.Width);
INT nY = DesktopHeight - (INT)(pBufferInfo->Bounds.Y + pBufferInfo->Bounds.Height);
pBufferInfo->Bounds.X = nX;
pBufferInfo->Bounds.Y = nY;
} break;
case DXGI_MODE_ROTATION_ROTATE270:
{
// Rotate -270 or +90
for (UINT i = 0; i < width; i++)
{
for (UINT j = 0; j < height; j++)
{
UINT I = height - 1 - j;
UINT J = i;
while ((i*height + j) >(I*width + J))
{
int p = I*width + J;
int tmp_i = p / height;
int tmp_j = p % height;
I = height - 1 - tmp_j;
J = tmp_i;
}
std::swap(*(InitBuffer32 + (i*height + j)), *(InitBuffer32 + (I*width + J)));
}
}
// translate bounds
std::swap(pBufferInfo->Bounds.Width, pBufferInfo->Bounds.Height);
INT nX = DesktopHeight - (pBufferInfo->Bounds.Y + pBufferInfo->Bounds.Width);
INT nY = pBufferInfo->Bounds.X;
pBufferInfo->Bounds.X = nX;
pBufferInfo->Bounds.Y = nY;
pBufferInfo->Pitch = pBufferInfo->Bounds.Width * 4;
} break;
}
return S_OK;
} // ProcessMouseMask
//
// Draw mouse provided in buffer to backbuffer
//
static
COM_DECLSPEC_NOTHROW
inline
HRESULT
DrawMouse(
_In_ tagMouseInfo *PtrInfo,
_In_ const DXGI_OUTPUT_DESC *DesktopDesc,
_Inout_ tagFrameBufferInfo *pTempMouseBuffer,
_Inout_ ID3D11Texture2D *pSharedSurf
)
{
CHECK_POINTER_EX(PtrInfo, E_INVALIDARG);
CHECK_POINTER_EX(DesktopDesc, E_INVALIDARG);
CHECK_POINTER_EX(pTempMouseBuffer, E_INVALIDARG);
CHECK_POINTER_EX(pSharedSurf, E_INVALIDARG);
HRESULT hr = S_OK;
D3D11_TEXTURE2D_DESC FullDesc;
pSharedSurf->GetDesc(&FullDesc);
INT SurfWidth = FullDesc.Width;
INT SurfHeight = FullDesc.Height;
INT SurfPitch = FullDesc.Width * 4;
hr = DXGICaptureHelper::ProcessMouseMask(PtrInfo, DesktopDesc, pTempMouseBuffer);
if (FAILED(hr)) {
return hr;
}
// Buffer used if necessary (in case of monochrome or masked pointer)
BYTE* InitBuffer = pTempMouseBuffer->Buffer;
// Clipping adjusted coordinates / dimensions
INT PtrWidth = (INT)pTempMouseBuffer->Bounds.Width;
INT PtrHeight = (INT)pTempMouseBuffer->Bounds.Height;
INT PtrLeft = (INT)pTempMouseBuffer->Bounds.X;
INT PtrTop = (INT)pTempMouseBuffer->Bounds.Y;
INT PtrPitch = (INT)pTempMouseBuffer->Pitch;
INT SrcLeft = 0;
INT SrcTop = 0;
INT SrcWidth = PtrWidth;
INT SrcHeight = PtrHeight;
if (PtrLeft < 0)
{
// crop mouseshape left
SrcLeft = -PtrLeft;
// new mouse x position for drawing
PtrLeft = 0;
}
else if (PtrLeft + PtrWidth > SurfWidth)
{
// crop mouseshape width
SrcWidth = SurfWidth - PtrLeft;
}
if (PtrTop < 0)
{
// crop mouseshape top
SrcTop = -PtrTop;
// new mouse y position for drawing
PtrTop = 0;
}
else if (PtrTop + PtrHeight > SurfHeight)
{
// crop mouseshape height
SrcHeight = SurfHeight - PtrTop;
}
// QI for IDXGISurface
CComPtr<IDXGISurface> ipCopySurface;
hr = pSharedSurf->QueryInterface(__uuidof(IDXGISurface), (void **)&ipCopySurface);
if (SUCCEEDED(hr)) {
// Map pixels
DXGI_MAPPED_RECT MappedSurface;
hr = ipCopySurface->Map(&MappedSurface, DXGI_MAP_READ | DXGI_MAP_WRITE);
if (SUCCEEDED(hr))
{
// 0xAARRGGBB
UINT* SrcBuffer32 = reinterpret_cast<UINT*>(InitBuffer);
UINT* DstBuffer32 = reinterpret_cast<UINT*>(MappedSurface.pBits) + PtrTop * SurfWidth + PtrLeft;
// Alpha blending masks
const UINT AMask = 0xFF000000;
const UINT RBMask = 0x00FF00FF;
const UINT GMask = 0x0000FF00;
const UINT AGMask = AMask | GMask;
const UINT OneAlpha = 0x01000000;
UINT uiPixel1;
UINT uiPixel2;
UINT uiAlpha;
UINT uiNAlpha;
UINT uiRedBlue;
UINT uiAlphaGreen;
for (INT Row = SrcTop; Row < SrcHeight; ++Row)
{
for (INT Col = SrcLeft; Col < SrcWidth; ++Col)
{
// Alpha blending
uiPixel1 = DstBuffer32[((Row - SrcTop) * SurfWidth) + (Col - SrcLeft)];
uiPixel2 = SrcBuffer32[(Row * PtrWidth) + Col];
uiAlpha = (uiPixel2 & AMask) >> 24;
uiNAlpha = 255 - uiAlpha;
uiRedBlue = ((uiNAlpha * (uiPixel1 & RBMask)) + (uiAlpha * (uiPixel2 & RBMask))) >> 8;
uiAlphaGreen = (uiNAlpha * ((uiPixel1 & AGMask) >> 8)) + (uiAlpha * (OneAlpha | ((uiPixel2 & GMask) >> 8)));
DstBuffer32[((Row - SrcTop) * SurfWidth) + (Col - SrcLeft)] = ((uiRedBlue & RBMask) | (uiAlphaGreen & AGMask));
}
}
}
// Done with resource
hr = ipCopySurface->Unmap();
}
return S_OK;
} // DrawMouse
static
COM_DECLSPEC_NOTHROW
inline
HRESULT
CreateBitmap(
_In_ ID2D1RenderTarget *pRenderTarget,
_In_ ID3D11Texture2D *pSourceTexture,
_Outptr_ ID2D1Bitmap **ppOutBitmap
)
{
CHECK_POINTER(ppOutBitmap);
*ppOutBitmap = nullptr;
CHECK_POINTER_EX(pRenderTarget, E_INVALIDARG);
CHECK_POINTER_EX(pSourceTexture, E_INVALIDARG);
HRESULT hr = S_OK;
CComPtr<ID3D11Texture2D> ipSourceTexture(pSourceTexture);
CComPtr<IDXGISurface> ipCopySurface;
CComPtr<ID2D1Bitmap> ipD2D1SourceBitmap;
// QI for IDXGISurface
hr = ipSourceTexture->QueryInterface(__uuidof(IDXGISurface), (void **)&ipCopySurface);
CHECK_HR_RETURN(hr);
// Map pixels
DXGI_MAPPED_RECT MappedSurface;
hr = ipCopySurface->Map(&MappedSurface, DXGI_MAP_READ);
CHECK_HR_RETURN(hr);
D3D11_TEXTURE2D_DESC destImageDesc;
ipSourceTexture->GetDesc(&destImageDesc);
hr = pRenderTarget->CreateBitmap(
D2D1::SizeU(destImageDesc.Width, destImageDesc.Height),
(const void*)MappedSurface.pBits,
MappedSurface.Pitch,
D2D1::BitmapProperties(D2D1::PixelFormat(DXGI_FORMAT_B8G8R8A8_UNORM, D2D1_ALPHA_MODE_PREMULTIPLIED)),
&ipD2D1SourceBitmap);
if (FAILED(hr))
{
// Done with resource
hr = ipCopySurface->Unmap();
return hr;
}
// Done with resource
hr = ipCopySurface->Unmap();
CHECK_HR_RETURN(hr);
// set return value
*ppOutBitmap = ipD2D1SourceBitmap.Detach();
return S_OK;
} // CreateBitmap
static
inline
COM_DECLSPEC_NOTHROW
HRESULT
GetContainerFormatByFileName(
_In_ LPCWSTR lpcwFileName,
_Out_opt_ GUID *pRetVal = NULL
)
{
RESET_POINTER_EX(pRetVal, GUID_NULL);
CHECK_POINTER_EX(lpcwFileName, E_INVALIDARG);
if (lstrlenW(lpcwFileName) == 0) {
return E_INVALIDARG;
}
LPCWSTR lpcwExtension = ::PathFindExtensionW(lpcwFileName);
if (lstrlenW(lpcwExtension) == 0) {
return MK_E_INVALIDEXTENSION; // ERROR_MRM_INVALID_FILE_TYPE
}
if (lstrcmpiW(lpcwExtension, L".bmp") == 0)
{
RESET_POINTER_EX(pRetVal, GUID_ContainerFormatBmp);
}
else if ((lstrcmpiW(lpcwExtension, L".tif") == 0) ||
(lstrcmpiW(lpcwExtension, L".tiff") == 0))
{
RESET_POINTER_EX(pRetVal, GUID_ContainerFormatTiff);
}
else if (lstrcmpiW(lpcwExtension, L".png") == 0)
{
RESET_POINTER_EX(pRetVal, GUID_ContainerFormatPng);
}
else if ((lstrcmpiW(lpcwExtension, L".jpg") == 0) ||
(lstrcmpiW(lpcwExtension, L".jpeg") == 0))
{
RESET_POINTER_EX(pRetVal, GUID_ContainerFormatJpeg);
}
else
{
return ERROR_MRM_INVALID_FILE_TYPE;
}
return S_OK;
}
static
COM_DECLSPEC_NOTHROW
inline
HRESULT
SaveImageToFile(
_In_ IWICImagingFactory *pWICImagingFactory,
_In_ IWICBitmapSource *pWICBitmapSource,
_In_ LPCWSTR lpcwFileName
)
{
CHECK_POINTER_EX(pWICImagingFactory, E_INVALIDARG);
CHECK_POINTER_EX(pWICBitmapSource, E_INVALIDARG);
HRESULT hr = S_OK;
GUID guidContainerFormat;
hr = GetContainerFormatByFileName(lpcwFileName, &guidContainerFormat);
if (FAILED(hr)) {
return hr;
}
WICPixelFormatGUID format = GUID_WICPixelFormatDontCare;
CComPtr<IWICImagingFactory> ipWICImagingFactory(pWICImagingFactory);
CComPtr<IWICBitmapSource> ipWICBitmapSource(pWICBitmapSource);
CComPtr<IWICStream> ipStream;
CComPtr<IWICBitmapEncoder> ipEncoder;
CComPtr<IWICBitmapFrameEncode> ipFrameEncode;
unsigned int uiWidth = 0;
unsigned int uiHeight = 0;
hr = ipWICImagingFactory->CreateStream(&ipStream);
if (SUCCEEDED(hr)) {
hr = ipStream->InitializeFromFilename(lpcwFileName, GENERIC_WRITE);
}
if (SUCCEEDED(hr)) {
hr = ipWICImagingFactory->CreateEncoder(guidContainerFormat, NULL, &ipEncoder);
}
if (SUCCEEDED(hr))
{
hr = ipEncoder->Initialize(ipStream, WICBitmapEncoderNoCache);
}
if (SUCCEEDED(hr))
{
hr = ipEncoder->CreateNewFrame(&ipFrameEncode, NULL);
}
if (SUCCEEDED(hr))
{
hr = ipFrameEncode->Initialize(NULL);
}
if (SUCCEEDED(hr))
{
hr = ipWICBitmapSource->GetSize(&uiWidth, &uiHeight);
}
if (SUCCEEDED(hr))
{
hr = ipFrameEncode->SetSize(uiWidth, uiHeight);
}
if (SUCCEEDED(hr))
{
hr = ipFrameEncode->SetPixelFormat(&format);
}
if (SUCCEEDED(hr))
{
hr = ipFrameEncode->WriteSource(ipWICBitmapSource, NULL);
}
if (SUCCEEDED(hr))
{
hr = ipFrameEncode->Commit();
}
if (SUCCEEDED(hr))
{
hr = ipEncoder->Commit();
}
return hr;
} // SaveImageToFile
}; // end class DXGICaptureHelper
#endif // __DXGICAPTUREHELPER_H__