mirror of
https://github.com/gnif/LookingGlass.git
synced 2024-09-20 17:31:32 +00:00
454 lines
11 KiB
C++
454 lines
11 KiB
C++
/*
|
|
Looking Glass - KVM FrameRelay (KVMFR) Client
|
|
Copyright (C) 2017 Geoffrey McRae <geoff@hostfission.com>
|
|
https://looking-glass.hostfission.com
|
|
|
|
This program is free software; you can redistribute it and/or modify it under
|
|
the terms of the GNU General Public License as published by the Free Software
|
|
Foundation; either version 2 of the License, or (at your option) any later
|
|
version.
|
|
|
|
This program 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 General Public License for more details.
|
|
|
|
You should have received a copy of the GNU General Public License along with
|
|
this program; if not, write to the Free Software Foundation, Inc., 59 Temple
|
|
Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*/
|
|
|
|
#include "Capture/DXGI.h"
|
|
using namespace Capture;
|
|
|
|
#include "common/debug.h"
|
|
#include "common/memcpySSE.h"
|
|
|
|
DXGI::DXGI() :
|
|
m_options(NULL),
|
|
m_initialized(false),
|
|
m_dxgiFactory(),
|
|
m_device(),
|
|
m_deviceContext(),
|
|
m_dup(),
|
|
m_texture(),
|
|
m_pointer(NULL)
|
|
{
|
|
}
|
|
|
|
DXGI::~DXGI()
|
|
{
|
|
|
|
}
|
|
|
|
bool DXGI::Initialize(CaptureOptions * options)
|
|
{
|
|
if (m_initialized)
|
|
DeInitialize();
|
|
|
|
m_options = options;
|
|
HRESULT status;
|
|
|
|
status = CreateDXGIFactory1(__uuidof(IDXGIFactory1), (void **)(&m_dxgiFactory));
|
|
if (FAILED(status))
|
|
{
|
|
DEBUG_ERROR("Failed to create DXGIFactory: %08x", (int)status);
|
|
return false;
|
|
}
|
|
|
|
bool done = false;
|
|
IDXGIAdapter1Ptr adapter;
|
|
for (int i = 0; m_dxgiFactory->EnumAdapters1(i, &adapter) != DXGI_ERROR_NOT_FOUND; i++)
|
|
{
|
|
IDXGIOutputPtr output;
|
|
for (int i = 0; adapter->EnumOutputs(i, &output) != DXGI_ERROR_NOT_FOUND; i++)
|
|
{
|
|
DXGI_OUTPUT_DESC outputDesc;
|
|
output->GetDesc(&outputDesc);
|
|
if (!outputDesc.AttachedToDesktop)
|
|
{
|
|
output.Release();
|
|
continue;
|
|
}
|
|
|
|
m_output = output;
|
|
if (!m_output)
|
|
{
|
|
output.Release();
|
|
adapter.Release();
|
|
DEBUG_ERROR("Failed to get IDXGIOutput1");
|
|
DeInitialize();
|
|
return false;
|
|
}
|
|
|
|
m_width = outputDesc.DesktopCoordinates.right - outputDesc.DesktopCoordinates.left;
|
|
m_height = outputDesc.DesktopCoordinates.bottom - outputDesc.DesktopCoordinates.top;
|
|
|
|
output.Release();
|
|
done = true;
|
|
break;
|
|
}
|
|
|
|
if (done)
|
|
break;
|
|
|
|
adapter.Release();
|
|
}
|
|
|
|
if (!done)
|
|
{
|
|
DEBUG_ERROR("Failed to locate a valid output device");
|
|
DeInitialize();
|
|
return false;
|
|
}
|
|
|
|
static const D3D_FEATURE_LEVEL featureLevels[] = {
|
|
D3D_FEATURE_LEVEL_10_1,
|
|
D3D_FEATURE_LEVEL_10_0,
|
|
D3D_FEATURE_LEVEL_9_3,
|
|
D3D_FEATURE_LEVEL_9_2,
|
|
D3D_FEATURE_LEVEL_9_1
|
|
};
|
|
|
|
#if DEBUG
|
|
#define CREATE_FLAGS (D3D11_CREATE_DEVICE_DEBUG)
|
|
#else
|
|
#define CREATE_FLAGS (0)
|
|
#endif
|
|
|
|
status = D3D11CreateDevice(
|
|
adapter,
|
|
D3D_DRIVER_TYPE_UNKNOWN,
|
|
NULL,
|
|
CREATE_FLAGS,
|
|
featureLevels, ARRAYSIZE(featureLevels),
|
|
D3D11_SDK_VERSION,
|
|
&m_device,
|
|
&m_featureLevel,
|
|
&m_deviceContext
|
|
);
|
|
|
|
#undef CREATE_FLAGS
|
|
|
|
adapter.Release();
|
|
|
|
if (FAILED(status))
|
|
{
|
|
DEBUG_ERROR("Failed to create D3D11 device");
|
|
DeInitialize();
|
|
return false;
|
|
}
|
|
|
|
IDXGIDevicePtr dxgi;
|
|
if (FAILED(m_device->QueryInterface(__uuidof(IDXGIDevice), (void **)&dxgi)))
|
|
{
|
|
DEBUG_ERROR("Failed to obtain the IDXGIDevice interface from the D3D11 device");
|
|
DeInitialize();
|
|
return false;
|
|
}
|
|
|
|
dxgi->SetGPUThreadPriority(7);
|
|
|
|
// we try this twice just incase we still get an error
|
|
// on re-initialization
|
|
for(int i = 0; i < 2; ++i)
|
|
{
|
|
status = m_output->DuplicateOutput(m_device, &m_dup);
|
|
if (SUCCEEDED(status))
|
|
break;
|
|
Sleep(200);
|
|
}
|
|
|
|
if (FAILED(status))
|
|
{
|
|
DEBUG_ERROR("DuplicateOutput Failed: %08x", (int)status);
|
|
DeInitialize();
|
|
return false;
|
|
}
|
|
|
|
D3D11_TEXTURE2D_DESC texDesc;
|
|
ZeroMemory(&texDesc, sizeof(texDesc));
|
|
texDesc.Width = m_width;
|
|
texDesc.Height = m_height;
|
|
texDesc.MipLevels = 1;
|
|
texDesc.ArraySize = 1;
|
|
texDesc.SampleDesc.Count = 1;
|
|
texDesc.SampleDesc.Quality = 0;
|
|
texDesc.Usage = D3D11_USAGE_STAGING;
|
|
texDesc.Format = DXGI_FORMAT_B8G8R8A8_UNORM;
|
|
texDesc.BindFlags = 0;
|
|
texDesc.CPUAccessFlags = D3D11_CPU_ACCESS_READ;
|
|
texDesc.MiscFlags = 0;
|
|
|
|
status = m_device->CreateTexture2D(&texDesc, NULL, &m_texture);
|
|
if (FAILED(status))
|
|
{
|
|
DEBUG_ERROR("Failed to create texture: %08x", (int)status);
|
|
DeInitialize();
|
|
return false;
|
|
}
|
|
|
|
m_initialized = true;
|
|
return true;
|
|
}
|
|
|
|
void DXGI::DeInitialize()
|
|
{
|
|
if (m_releaseFrame)
|
|
{
|
|
m_releaseFrame = false;
|
|
m_dup->ReleaseFrame();
|
|
}
|
|
|
|
if (m_pointer)
|
|
{
|
|
delete[] m_pointer;
|
|
m_pointer = NULL;
|
|
m_pointerBufSize = 0;
|
|
}
|
|
|
|
if (m_surfaceMapped)
|
|
{
|
|
m_deviceContext->Unmap(m_texture, 0);
|
|
m_surfaceMapped = false;
|
|
}
|
|
|
|
if (m_texture)
|
|
m_texture.Release();
|
|
|
|
if (m_dup)
|
|
m_dup.Release();
|
|
|
|
if (m_output)
|
|
m_output.Release();
|
|
|
|
if (m_deviceContext)
|
|
m_deviceContext.Release();
|
|
|
|
if (m_device)
|
|
m_device.Release();
|
|
|
|
if (m_dxgiFactory)
|
|
m_dxgiFactory.Release();
|
|
|
|
m_initialized = false;
|
|
}
|
|
|
|
FrameType DXGI::GetFrameType()
|
|
{
|
|
if (!m_initialized)
|
|
return FRAME_TYPE_INVALID;
|
|
|
|
return FRAME_TYPE_ARGB;
|
|
}
|
|
|
|
size_t DXGI::GetMaxFrameSize()
|
|
{
|
|
if (!m_initialized)
|
|
return 0;
|
|
|
|
return (m_width * m_height * 4);
|
|
}
|
|
|
|
void DXGI::WaitForDesktop()
|
|
{
|
|
HDESK desktop;
|
|
do
|
|
{
|
|
desktop = OpenInputDesktop(0, TRUE, GENERIC_READ);
|
|
if (desktop)
|
|
break;
|
|
Sleep(100);
|
|
}
|
|
while (!desktop);
|
|
CloseDesktop(desktop);
|
|
}
|
|
|
|
GrabStatus DXGI::GrabFrame(FrameInfo & frame)
|
|
{
|
|
if (!m_initialized)
|
|
return GRAB_STATUS_ERROR;
|
|
|
|
DXGI_OUTDUPL_FRAME_INFO frameInfo;
|
|
IDXGIResourcePtr res;
|
|
|
|
HRESULT status;
|
|
bool cursorUpdate = false;
|
|
for(int i = 0; i < 2; ++i)
|
|
{
|
|
while(true)
|
|
{
|
|
if (m_releaseFrame)
|
|
{
|
|
m_releaseFrame = false;
|
|
status = m_dup->ReleaseFrame();
|
|
|
|
switch (status)
|
|
{
|
|
case S_OK:
|
|
break;
|
|
|
|
case DXGI_ERROR_INVALID_CALL:
|
|
DEBUG_ERROR("Frame was already released");
|
|
return GRAB_STATUS_ERROR;
|
|
|
|
case DXGI_ERROR_ACCESS_LOST:
|
|
WaitForDesktop();
|
|
return GRAB_STATUS_REINIT;
|
|
}
|
|
}
|
|
|
|
status = m_dup->AcquireNextFrame(1000, &frameInfo, &res);
|
|
if (status == DXGI_ERROR_WAIT_TIMEOUT)
|
|
{
|
|
if (!m_surfaceMapped)
|
|
continue;
|
|
|
|
// send the last frame again if we timeout to prevent the client stalling on restart
|
|
frame.width = m_width;
|
|
frame.height = m_height;
|
|
frame.pitch = m_mapping.RowPitch;
|
|
frame.stride = m_mapping.RowPitch / 4;
|
|
|
|
unsigned int size = m_height * m_mapping.RowPitch;
|
|
memcpySSE(frame.buffer, m_mapping.pData, size < frame.bufferSize ? size : frame.bufferSize);
|
|
return GRAB_STATUS_OK;
|
|
}
|
|
|
|
if (!SUCCEEDED(status))
|
|
break;
|
|
|
|
m_releaseFrame = true;
|
|
|
|
// if we have a mouse update
|
|
if (frameInfo.LastMouseUpdateTime.QuadPart)
|
|
{
|
|
if (
|
|
m_lastMousePos.x != frameInfo.PointerPosition.Position.x ||
|
|
m_lastMousePos.y != frameInfo.PointerPosition.Position.y
|
|
) {
|
|
cursorUpdate = true;
|
|
frame.cursor.hasPos = true;
|
|
frame.cursor.x = frameInfo.PointerPosition.Position.x;
|
|
frame.cursor.y = frameInfo.PointerPosition.Position.y;
|
|
m_lastMousePos.x = frameInfo.PointerPosition.Position.x;
|
|
m_lastMousePos.y = frameInfo.PointerPosition.Position.y;
|
|
}
|
|
|
|
if (m_lastMouseVis != frameInfo.PointerPosition.Visible)
|
|
{
|
|
cursorUpdate = true;
|
|
m_lastMouseVis = frameInfo.PointerPosition.Visible;
|
|
}
|
|
|
|
frame.cursor.visible = m_lastMouseVis == TRUE;
|
|
}
|
|
|
|
// if the pointer shape has changed
|
|
if (frameInfo.PointerShapeBufferSize > 0)
|
|
{
|
|
cursorUpdate = true;
|
|
if (m_pointerBufSize < frameInfo.PointerShapeBufferSize)
|
|
{
|
|
if (m_pointer)
|
|
delete[] m_pointer;
|
|
m_pointer = new BYTE[frameInfo.PointerShapeBufferSize];
|
|
m_pointerBufSize = frameInfo.PointerShapeBufferSize;
|
|
}
|
|
|
|
DXGI_OUTDUPL_POINTER_SHAPE_INFO shapeInfo;
|
|
status = m_dup->GetFramePointerShape(m_pointerBufSize, m_pointer, &m_pointerSize, &shapeInfo);
|
|
if (!SUCCEEDED(status))
|
|
{
|
|
DEBUG_ERROR("Failed to get the new pointer shape: %08x", (int)status);
|
|
return GRAB_STATUS_ERROR;
|
|
}
|
|
|
|
switch (shapeInfo.Type)
|
|
{
|
|
case DXGI_OUTDUPL_POINTER_SHAPE_TYPE_COLOR : frame.cursor.type = CURSOR_TYPE_COLOR; break;
|
|
case DXGI_OUTDUPL_POINTER_SHAPE_TYPE_MASKED_COLOR: frame.cursor.type = CURSOR_TYPE_MASKED_COLOR; break;
|
|
case DXGI_OUTDUPL_POINTER_SHAPE_TYPE_MONOCHROME : frame.cursor.type = CURSOR_TYPE_MONOCHROME; break;
|
|
default:
|
|
DEBUG_ERROR("Invalid cursor type");
|
|
return GRAB_STATUS_ERROR;
|
|
}
|
|
|
|
frame.cursor.hasShape = true;
|
|
frame.cursor.shape = m_pointer;
|
|
frame.cursor.w = shapeInfo.Width;
|
|
frame.cursor.h = shapeInfo.Height;
|
|
frame.cursor.pitch = shapeInfo.Pitch;
|
|
frame.cursor.dataSize = m_pointerSize;
|
|
}
|
|
|
|
if (frameInfo.LastPresentTime.QuadPart != 0)
|
|
break;
|
|
|
|
res.Release();
|
|
|
|
if (cursorUpdate)
|
|
return GRAB_STATUS_CURSOR;
|
|
}
|
|
|
|
if (SUCCEEDED(status))
|
|
break;
|
|
|
|
HDESK desktop = NULL;
|
|
switch (status)
|
|
{
|
|
// desktop switch, mode change, switch DWM on or off or Secure Desktop
|
|
case DXGI_ERROR_ACCESS_LOST:
|
|
case WAIT_ABANDONED:
|
|
WaitForDesktop();
|
|
return GRAB_STATUS_REINIT;
|
|
|
|
default:
|
|
// unknown failure
|
|
DEBUG_INFO("AcquireNextFrame failed: %08x", (int)status);
|
|
return GRAB_STATUS_ERROR;
|
|
}
|
|
}
|
|
|
|
// retry count exceeded
|
|
if (FAILED(status))
|
|
{
|
|
DEBUG_ERROR("Failed to acquire next frame");
|
|
return GRAB_STATUS_ERROR;
|
|
}
|
|
|
|
ID3D11Texture2DPtr src(res);
|
|
res.Release();
|
|
if (!src)
|
|
{
|
|
DEBUG_ERROR("Failed to get src ID3D11Texture2D");
|
|
return GRAB_STATUS_ERROR;
|
|
}
|
|
|
|
m_deviceContext->CopyResource(m_texture, src);
|
|
src.Release();
|
|
|
|
if (m_surfaceMapped)
|
|
{
|
|
m_deviceContext->Unmap(m_texture, 0);
|
|
m_surfaceMapped = false;
|
|
}
|
|
|
|
status = m_deviceContext->Map(m_texture, 0, D3D11_MAP_READ, 0, &m_mapping);
|
|
if (FAILED(status))
|
|
{
|
|
DEBUG_ERROR("Failed to map the texture: %08x", (int)status);
|
|
DeInitialize();
|
|
return GRAB_STATUS_ERROR;
|
|
}
|
|
m_surfaceMapped = true;
|
|
|
|
frame.width = m_width;
|
|
frame.height = m_height;
|
|
frame.pitch = m_mapping.RowPitch;
|
|
frame.stride = m_mapping.RowPitch / 4;
|
|
unsigned int size = m_height * m_mapping.RowPitch;
|
|
|
|
memcpySSE(frame.buffer, m_mapping.pData, size < frame.bufferSize ? size : frame.bufferSize);
|
|
|
|
return GRAB_STATUS_OK;
|
|
} |