/* Looking Glass - KVM FrameRelay (KVMFR) Client Copyright (C) 2017 Geoffrey McRae 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" static const char * DXGI_FORMAT_STR[] = { "DXGI_FORMAT_UNKNOWN", "DXGI_FORMAT_R32G32B32A32_TYPELESS", "DXGI_FORMAT_R32G32B32A32_FLOAT", "DXGI_FORMAT_R32G32B32A32_UINT", "DXGI_FORMAT_R32G32B32A32_SINT", "DXGI_FORMAT_R32G32B32_TYPELESS", "DXGI_FORMAT_R32G32B32_FLOAT", "DXGI_FORMAT_R32G32B32_UINT", "DXGI_FORMAT_R32G32B32_SINT", "DXGI_FORMAT_R16G16B16A16_TYPELESS", "DXGI_FORMAT_R16G16B16A16_FLOAT", "DXGI_FORMAT_R16G16B16A16_UNORM", "DXGI_FORMAT_R16G16B16A16_UINT", "DXGI_FORMAT_R16G16B16A16_SNORM", "DXGI_FORMAT_R16G16B16A16_SINT", "DXGI_FORMAT_R32G32_TYPELESS", "DXGI_FORMAT_R32G32_FLOAT", "DXGI_FORMAT_R32G32_UINT", "DXGI_FORMAT_R32G32_SINT", "DXGI_FORMAT_R32G8X24_TYPELESS", "DXGI_FORMAT_D32_FLOAT_S8X24_UINT", "DXGI_FORMAT_R32_FLOAT_X8X24_TYPELESS", "DXGI_FORMAT_X32_TYPELESS_G8X24_UINT", "DXGI_FORMAT_R10G10B10A2_TYPELESS", "DXGI_FORMAT_R10G10B10A2_UNORM", "DXGI_FORMAT_R10G10B10A2_UINT", "DXGI_FORMAT_R11G11B10_FLOAT", "DXGI_FORMAT_R8G8B8A8_TYPELESS", "DXGI_FORMAT_R8G8B8A8_UNORM", "DXGI_FORMAT_R8G8B8A8_UNORM_SRGB", "DXGI_FORMAT_R8G8B8A8_UINT", "DXGI_FORMAT_R8G8B8A8_SNORM", "DXGI_FORMAT_R8G8B8A8_SINT", "DXGI_FORMAT_R16G16_TYPELESS", "DXGI_FORMAT_R16G16_FLOAT", "DXGI_FORMAT_R16G16_UNORM", "DXGI_FORMAT_R16G16_UINT", "DXGI_FORMAT_R16G16_SNORM", "DXGI_FORMAT_R16G16_SINT", "DXGI_FORMAT_R32_TYPELESS", "DXGI_FORMAT_D32_FLOAT", "DXGI_FORMAT_R32_FLOAT", "DXGI_FORMAT_R32_UINT", "DXGI_FORMAT_R32_SINT", "DXGI_FORMAT_R24G8_TYPELESS", "DXGI_FORMAT_D24_UNORM_S8_UINT", "DXGI_FORMAT_R24_UNORM_X8_TYPELESS", "DXGI_FORMAT_X24_TYPELESS_G8_UINT", "DXGI_FORMAT_R8G8_TYPELESS", "DXGI_FORMAT_R8G8_UNORM", "DXGI_FORMAT_R8G8_UINT", "DXGI_FORMAT_R8G8_SNORM", "DXGI_FORMAT_R8G8_SINT", "DXGI_FORMAT_R16_TYPELESS", "DXGI_FORMAT_R16_FLOAT", "DXGI_FORMAT_D16_UNORM", "DXGI_FORMAT_R16_UNORM", "DXGI_FORMAT_R16_UINT", "DXGI_FORMAT_R16_SNORM", "DXGI_FORMAT_R16_SINT", "DXGI_FORMAT_R8_TYPELESS", "DXGI_FORMAT_R8_UNORM", "DXGI_FORMAT_R8_UINT", "DXGI_FORMAT_R8_SNORM", "DXGI_FORMAT_R8_SINT", "DXGI_FORMAT_A8_UNORM", "DXGI_FORMAT_R1_UNORM", "DXGI_FORMAT_R9G9B9E5_SHAREDEXP", "DXGI_FORMAT_R8G8_B8G8_UNORM", "DXGI_FORMAT_G8R8_G8B8_UNORM", "DXGI_FORMAT_BC1_TYPELESS", "DXGI_FORMAT_BC1_UNORM", "DXGI_FORMAT_BC1_UNORM_SRGB", "DXGI_FORMAT_BC2_TYPELESS", "DXGI_FORMAT_BC2_UNORM", "DXGI_FORMAT_BC2_UNORM_SRGB", "DXGI_FORMAT_BC3_TYPELESS", "DXGI_FORMAT_BC3_UNORM", "DXGI_FORMAT_BC3_UNORM_SRGB", "DXGI_FORMAT_BC4_TYPELESS", "DXGI_FORMAT_BC4_UNORM", "DXGI_FORMAT_BC4_SNORM", "DXGI_FORMAT_BC5_TYPELESS", "DXGI_FORMAT_BC5_UNORM", "DXGI_FORMAT_BC5_SNORM", "DXGI_FORMAT_B5G6R5_UNORM", "DXGI_FORMAT_B5G5R5A1_UNORM", "DXGI_FORMAT_B8G8R8A8_UNORM", "DXGI_FORMAT_B8G8R8X8_UNORM", "DXGI_FORMAT_R10G10B10_XR_BIAS_A2_UNORM", "DXGI_FORMAT_B8G8R8A8_TYPELESS", "DXGI_FORMAT_B8G8R8A8_UNORM_SRGB", "DXGI_FORMAT_B8G8R8X8_TYPELESS", "DXGI_FORMAT_B8G8R8X8_UNORM_SRGB", "DXGI_FORMAT_BC6H_TYPELESS", "DXGI_FORMAT_BC6H_UF16", "DXGI_FORMAT_BC6H_SF16", "DXGI_FORMAT_BC7_TYPELESS", "DXGI_FORMAT_BC7_UNORM", "DXGI_FORMAT_BC7_UNORM_SRGB", "DXGI_FORMAT_AYUV", "DXGI_FORMAT_Y410", "DXGI_FORMAT_Y416", "DXGI_FORMAT_NV12", "DXGI_FORMAT_P010", "DXGI_FORMAT_P016", "DXGI_FORMAT_420_OPAQUE", "DXGI_FORMAT_YUY2", "DXGI_FORMAT_Y210", "DXGI_FORMAT_Y216", "DXGI_FORMAT_NV11", "DXGI_FORMAT_AI44", "DXGI_FORMAT_IA44", "DXGI_FORMAT_P8", "DXGI_FORMAT_A8P8", "DXGI_FORMAT_B4G4R4A4_UNORM", NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, "DXGI_FORMAT_P208", "DXGI_FORMAT_V208", "DXGI_FORMAT_V408" }; const char * GetDXGIFormatStr(DXGI_FORMAT format) { if (format > _countof(DXGI_FORMAT_STR)) return DXGI_FORMAT_STR[0]; return DXGI_FORMAT_STR[format]; } DXGI::DXGI() : m_options(NULL), m_initialized(false), m_dxgiFactory(), m_device(), m_deviceContext(), m_dup() { } DXGI::~DXGI() { } bool DXGI::CanInitialize() { HDESK desktop = OpenInputDesktop(0, TRUE, GENERIC_READ); if (!desktop) return false; CloseDesktop(desktop); return true; } bool DXGI::Initialize(CaptureOptions * options) { if (m_initialized) DeInitialize(); m_options = options; HRESULT status; m_cursorRPos = 0; m_cursorWPos = 0; for (int i = 0; i < _countof(m_cursorRing); ++i) { CursorInfo & cursor = m_cursorRing[i]; cursor.visible = false; cursor.hasPos = false; cursor.hasShape = false; } 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++) { for (int i = 0; adapter->EnumOutputs(i, &m_output) != DXGI_ERROR_NOT_FOUND; i++) { DXGI_OUTPUT_DESC outputDesc; m_output->GetDesc(&outputDesc); if (!outputDesc.AttachedToDesktop) { m_output = NULL; continue; } DXGI_ADAPTER_DESC1 adapterDesc; adapter->GetDesc1(&adapterDesc); DEBUG_INFO("Device Descripion: %ls" , adapterDesc.Description); DEBUG_INFO("Device Vendor ID : 0x%x" , adapterDesc.VendorId); DEBUG_INFO("Device Device ID : 0x%x" , adapterDesc.DeviceId); DEBUG_INFO("Device Video Mem : %lld MB", adapterDesc.DedicatedVideoMemory / 1048576); DEBUG_INFO("Device Sys Mem : %lld MB", adapterDesc.DedicatedSystemMemory / 1048576); DEBUG_INFO("Shared Sys Mem : %lld MB", adapterDesc.SharedSystemMemory / 1048576); m_width = outputDesc.DesktopCoordinates.right - outputDesc.DesktopCoordinates.left; m_height = outputDesc.DesktopCoordinates.bottom - outputDesc.DesktopCoordinates.top; DEBUG_INFO("Capture Size : %u x %u", m_width, m_height); done = true; break; } if (done) break; adapter = NULL; } if (!done) { DEBUG_ERROR("Failed to locate a valid output device"); DeInitialize(); return false; } static const D3D_FEATURE_LEVEL featureLevels[] = { D3D_FEATURE_LEVEL_12_1, D3D_FEATURE_LEVEL_12_0, D3D_FEATURE_LEVEL_11_1, D3D_FEATURE_LEVEL_11_0, 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 }; #ifdef _DEBUG #define CREATE_FLAGS (D3D11_CREATE_DEVICE_DEBUG) #else #define CREATE_FLAGS (0) #endif status = D3D11CreateDevice( adapter, D3D_DRIVER_TYPE_UNKNOWN, NULL, CREATE_FLAGS | D3D11_CREATE_DEVICE_VIDEO_SUPPORT, featureLevels, ARRAYSIZE(featureLevels), D3D11_SDK_VERSION, &m_device, &m_featureLevel, &m_deviceContext ); #undef CREATE_FLAGS if (FAILED(status)) { DEBUG_WINERROR("Failed to create D3D11 device", status); DeInitialize(); return false; } DEBUG_INFO("Feature Level : 0x%x", m_featureLevel); IDXGIDevicePtr dxgi; status = m_device->QueryInterface(__uuidof(IDXGIDevice), (void **)&dxgi); if (FAILED(status)) { DEBUG_WINERROR("Failed to obtain the IDXGIDevice interface from the D3D11 device", status); DeInitialize(); return false; } dxgi->SetGPUThreadPriority(7); // first try to use the newer API IDXGIOutput5Ptr output5 = m_output; if (output5) { // we try this twice in case we still get an error on re-initialization for (int i = 0; i < 2; ++i) { const DXGI_FORMAT supportedFormats[] = { DXGI_FORMAT_B8G8R8A8_UNORM, DXGI_FORMAT_R8G8B8A8_UNORM, DXGI_FORMAT_R10G10B10A2_UNORM }; status = output5->DuplicateOutput1(m_device, 0, _countof(supportedFormats), supportedFormats, &m_dup); if (SUCCEEDED(status)) break; Sleep(200); } if (FAILED(status)) { DEBUG_WINERROR("DuplicateOutput1 Failed", status); DeInitialize(); return false; } } else { DEBUG_WARN("IDXGIOutput5 is not available, please update windows for improved performance!"); DEBUG_WARN("Falling back to IDXIGOutput1"); IDXGIOutput1Ptr output1 = m_output; if (!output1) { // we try this twice in case we still get an error on re-initialization for (int i = 0; i < 2; ++i) { status = output1->DuplicateOutput(m_device, &m_dup); if (SUCCEEDED(status)) break; Sleep(200); } if (FAILED(status)) { DEBUG_WINERROR("DuplicateOutput Failed", status); DeInitialize(); return false; } } } DXGI_OUTDUPL_DESC dupDesc; m_dup->GetDesc(&dupDesc); DEBUG_INFO("Source Format : %s", GetDXGIFormatStr(dupDesc.ModeDesc.Format)); m_started = false; m_initialized = true; return true; } bool DXGI::InitRawCapture() { 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 = m_pixelFormat; texDesc.BindFlags = 0; texDesc.CPUAccessFlags = D3D11_CPU_ACCESS_READ; texDesc.MiscFlags = 0; HRESULT status = m_device->CreateTexture2D(&texDesc, NULL, &m_texture[0]); if (FAILED(status)) { DEBUG_WINERROR("Failed to create texture", status); return false; } return true; } bool DXGI::InitYUV420Capture() { HRESULT status; 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_R8_UNORM; texDesc.BindFlags = 0; texDesc.CPUAccessFlags = D3D11_CPU_ACCESS_READ; texDesc.MiscFlags = 0; status = m_device->CreateTexture2D(&texDesc, NULL, &m_texture[0]); if (FAILED(status)) { DEBUG_WINERROR("Failed to create texture", status); return false; } texDesc.Width /= 2; texDesc.Height /= 2; status = m_device->CreateTexture2D(&texDesc, NULL, &m_texture[1]); if (FAILED(status)) { DEBUG_WINERROR("Failed to create texture", status); return false; } status = m_device->CreateTexture2D(&texDesc, NULL, &m_texture[2]); if (FAILED(status)) { DEBUG_WINERROR("Failed to create texture", status); return false; } m_textureConverter = new TextureConverter(); if (!m_textureConverter->Initialize(m_deviceContext, m_device, m_width, m_height, FRAME_TYPE_YUV420)) return false; return true; } void DXGI::DeInitialize() { if (m_h264) { delete m_h264; m_h264 = NULL; } if (m_textureConverter) { delete m_textureConverter; m_textureConverter = NULL; } ReleaseFrame(); for(int i = 0; i < _countof(m_cursorRing); ++i) { if (m_cursorRing[i].shape.buffer) delete[] m_cursorRing[i].shape.buffer; m_cursorRing[i].shape.buffer = NULL; m_cursorRing[i].shape.bufferSize = 0; } for(int i = 0; i < _countof(m_texture); ++i) m_texture[i] = NULL; m_dup = NULL; m_output = NULL; m_deviceContext = NULL; m_device = NULL; m_dxgiFactory = NULL; m_initialized = false; } FrameType DXGI::GetFrameType() { if (!m_initialized) return FRAME_TYPE_INVALID; return m_frameType; } size_t DXGI::GetMaxFrameSize() { if (!m_initialized) return 0; return (m_width * m_height * 4); } unsigned int Capture::DXGI::Capture() { if (!m_initialized) return GRAB_STATUS_ERROR; CursorInfo & cursor = m_cursorRing[m_cursorWPos]; DXGI_OUTDUPL_FRAME_INFO frameInfo; IDXGIResourcePtr res; unsigned int ret; HRESULT status; for (int retryCount = 0; retryCount < 2; ++retryCount) { ret = ReleaseFrame(); if (ret != GRAB_STATUS_OK) return ret; status = m_dup->AcquireNextFrame(1000, &frameInfo, &res); switch (status) { case S_OK: m_releaseFrame = true; break; case DXGI_ERROR_WAIT_TIMEOUT: return GRAB_STATUS_TIMEOUT; // desktop switch, mode change, switch DWM on or off or Secure Desktop case DXGI_ERROR_ACCESS_LOST: case WAIT_ABANDONED: return GRAB_STATUS_REINIT; default: // unknown failure DEBUG_WINERROR("AcquireNextFrame failed", status); return GRAB_STATUS_ERROR; } // if the pointer shape has changed if (frameInfo.PointerShapeBufferSize > 0) { // resize the buffer if required if (cursor.shape.bufferSize < frameInfo.PointerShapeBufferSize) { delete[] cursor.shape.buffer; cursor.shape.buffer = new char[frameInfo.PointerShapeBufferSize]; cursor.shape.bufferSize = frameInfo.PointerShapeBufferSize; } cursor.shape.pointerSize = 0; ret |= GRAB_STATUS_CURSOR; DXGI_OUTDUPL_POINTER_SHAPE_INFO shapeInfo; status = m_dup->GetFramePointerShape(cursor.shape.bufferSize, cursor.shape.buffer, &cursor.shape.pointerSize, &shapeInfo); if (FAILED(status)) { DEBUG_WINERROR("Failed to get the new pointer shape", status); return GRAB_STATUS_ERROR; } switch (shapeInfo.Type) { case DXGI_OUTDUPL_POINTER_SHAPE_TYPE_COLOR : cursor.type = CURSOR_TYPE_COLOR; break; case DXGI_OUTDUPL_POINTER_SHAPE_TYPE_MASKED_COLOR: cursor.type = CURSOR_TYPE_MASKED_COLOR; break; case DXGI_OUTDUPL_POINTER_SHAPE_TYPE_MONOCHROME : cursor.type = CURSOR_TYPE_MONOCHROME; break; default: DEBUG_ERROR("Invalid cursor type"); return GRAB_STATUS_ERROR; } cursor.hasShape = true; cursor.w = shapeInfo.Width; cursor.h = shapeInfo.Height; cursor.pitch = shapeInfo.Pitch; } // if we have a mouse update if (frameInfo.LastMouseUpdateTime.QuadPart) { if ( m_lastCursorX != frameInfo.PointerPosition.Position.x || m_lastCursorY != frameInfo.PointerPosition.Position.y ) { ret |= GRAB_STATUS_CURSOR; cursor.hasPos = true; cursor.x = m_lastCursorX = frameInfo.PointerPosition.Position.x; cursor.y = m_lastCursorY = frameInfo.PointerPosition.Position.y; } } if (m_lastMouseVis != frameInfo.PointerPosition.Visible) m_lastMouseVis = frameInfo.PointerPosition.Visible; cursor.visible = m_lastMouseVis == TRUE; if (ret & GRAB_STATUS_CURSOR && m_cursorWPos == m_cursorRPos) { // atomic advance so we don't have to worry about locking m_cursorWPos = (m_cursorWPos + 1 == DXGI_CURSOR_RING_SIZE) ? 0 : m_cursorWPos + 1; } // if we don't have frame data if (frameInfo.LastPresentTime.QuadPart == 0) { // if there is nothing to update, just start again if (!ret) { --retryCount; continue; } res = NULL; ret |= GRAB_STATUS_OK; return ret; } // success, break out of the retry loop break; } ret |= GRAB_STATUS_FRAME; // ensure we have a frame if (!m_releaseFrame) { DEBUG_WINERROR("Failed to acquire next frame", status); return GRAB_STATUS_ERROR; } // get the texture res.QueryInterface(IID_PPV_ARGS(&m_ftexture)); res = NULL; if (!m_ftexture) { DEBUG_ERROR("Failed to get src ID3D11Texture2D"); return GRAB_STATUS_ERROR; } if (!m_started) { m_started = true; // determine the native pixel format D3D11_TEXTURE2D_DESC dupDesc; ZeroMemory(&dupDesc, sizeof(dupDesc)); m_ftexture->GetDesc(&dupDesc); m_pixelFormat = dupDesc.Format; switch(m_pixelFormat) { case DXGI_FORMAT_R8G8B8A8_UNORM: m_frameType = FRAME_TYPE_RGBA; break; case DXGI_FORMAT_B8G8R8A8_UNORM: m_frameType = FRAME_TYPE_BGRA; break; case DXGI_FORMAT_R10G10B10A2_UNORM: m_frameType = FRAME_TYPE_RGBA10; break; default: DEBUG_WARN("Unsupported pixel format %s, enabling conversions", GetDXGIFormatStr(m_pixelFormat)); return GRAB_STATUS_ERROR; } DEBUG_INFO("Pixel Format : %s", GetDXGIFormatStr(m_pixelFormat)); for(CaptureOptions::const_iterator it = m_options->cbegin(); it != m_options->cend(); ++it) { if (_stricmp(*it, "yuv420") == 0) m_frameType = FRAME_TYPE_YUV420; } bool ok = false; switch (m_frameType) { case FRAME_TYPE_BGRA : case FRAME_TYPE_RGBA : case FRAME_TYPE_RGBA10: ok = InitRawCapture (); break; case FRAME_TYPE_YUV420: ok = InitYUV420Capture(); break; } if (!ok) return GRAB_STATUS_ERROR; } // initiate the texture copy as early as possible if (m_frameType == FRAME_TYPE_YUV420) { TextureList planes; if (!m_textureConverter->Convert(m_ftexture, planes)) return GRAB_STATUS_ERROR; for (int i = 0; i < 3; ++i) { ID3D11Texture2DPtr t = planes.at(i); m_deviceContext->CopyResource(m_texture[i], t); } } else m_deviceContext->CopyResource(m_texture[0], m_ftexture); ret |= GRAB_STATUS_OK; return ret; } GrabStatus Capture::DXGI::ReleaseFrame() { if (!m_releaseFrame) return GRAB_STATUS_OK; m_releaseFrame = false; m_ftexture = NULL; switch (m_dup->ReleaseFrame()) { case S_OK: break; case DXGI_ERROR_INVALID_CALL: DEBUG_ERROR("Frame was already released"); return GRAB_STATUS_ERROR; case WAIT_ABANDONED: case DXGI_ERROR_ACCESS_LOST: return GRAB_STATUS_REINIT; } return GRAB_STATUS_OK; } GrabStatus Capture::DXGI::DiscardFrame() { return ReleaseFrame(); } GrabStatus Capture::DXGI::GrabFrameRaw(FrameInfo & frame) { D3D11_MAPPED_SUBRESOURCE mapping; HRESULT status; status = m_deviceContext->Map(m_texture[0], 0, D3D11_MAP_READ, 0, &mapping); if (FAILED(status)) { DEBUG_WINERROR("Failed to map the texture", status); DeInitialize(); return GRAB_STATUS_ERROR; } frame.pitch = mapping.RowPitch; frame.stride = mapping.RowPitch / 4; memcpySSE(frame.buffer, mapping.pData, frame.pitch * m_height); m_deviceContext->Unmap(m_texture[0], 0); return GRAB_STATUS_OK; } GrabStatus Capture::DXGI::GrabFrameYUV420(struct FrameInfo & frame) { uint8_t * data = (uint8_t *)frame.buffer; size_t remain = frame.bufferSize; for(int i = 0; i < 3; ++i) { HRESULT status; D3D11_MAPPED_SUBRESOURCE mapping; D3D11_TEXTURE2D_DESC desc; m_texture[i]->GetDesc(&desc); status = m_deviceContext->Map(m_texture[i], 0, D3D11_MAP_READ, 0, &mapping); if (FAILED(status)) { DEBUG_WINERROR("Failed to map the texture", status); DeInitialize(); return GRAB_STATUS_ERROR; } const unsigned int size = desc.Height * desc.Width; if (size > remain) { m_deviceContext->Unmap(m_texture[i], 0); DEBUG_ERROR("Too much data to fit in buffer"); return GRAB_STATUS_ERROR; } const uint8_t * src = (uint8_t *)mapping.pData; for(unsigned int y = 0; y < desc.Height; ++y) { memcpySSE(data, src, desc.Width); data += desc.Width; src += mapping.RowPitch; } m_deviceContext->Unmap(m_texture[i], 0); remain -= size; } frame.pitch = m_width; frame.stride = m_width; return GRAB_STATUS_OK; } GrabStatus DXGI::GetFrame(struct FrameInfo & frame) { if (!m_ftexture) { DEBUG_ERROR("A frame has not been captured"); return GRAB_STATUS_ERROR; } frame.width = m_width; frame.height = m_height; if (m_frameType == FRAME_TYPE_YUV420) return GrabFrameYUV420(frame); return GrabFrameRaw(frame); } bool DXGI::GetCursor(CursorInfo & cursor) { if (m_cursorRPos == m_cursorWPos) return false; cursor = m_cursorRing[m_cursorRPos]; return true; } void DXGI::FreeCursor() { assert(m_cursorRPos != m_cursorWPos); CursorInfo & cursor = m_cursorRing[m_cursorRPos]; cursor.visible = false; cursor.hasPos = false; cursor.hasShape = false; m_cursorRPos = (m_cursorRPos + 1 == DXGI_CURSOR_RING_SIZE) ? 0 : m_cursorRPos + 1; }