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project/fm_viewer/fav/DirectXHelper.cpp

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+/******************************************************************************
+    QtAV:  Multimedia framework based on Qt and FFmpeg
+    Copyright (C) 2012-2016 Wang Bin <wbsecg1@gmail.com>
+
+*   This file is part of QtAV (from 2015)
+
+    This library 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.
+
+    This library 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.
+
+    You should have received a copy of the GNU Lesser General Public
+    License along with this library; if not, write to the Free Software
+    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+******************************************************************************/
+
+#include "DirectXHelper.h"
+#include "../Logger.h"
+
+namespace FAV {
+namespace DXHelper {
+
+const char* vendorName(unsigned id)
+{
+    static const struct {
+        unsigned id;
+        char     name[32];
+    } vendors [] = {
+        { 0x1002, "ATI" },
+        { 0x10DE, "NVIDIA" },
+        { 0x1106, "VIA" },
+        { 0x8086, "Intel" },
+        { 0x5333, "S3 Graphics" },
+        { 0x4D4F4351, "Qualcomm" },
+        { 0, "" }
+    };
+    const char *vendor = "Unknown";
+    for (int i = 0; vendors[i].id != 0; i++) {
+        if (vendors[i].id == id) {
+            vendor = vendors[i].name;
+            break;
+        }
+    }
+    return vendor;
+}
+
+#ifndef Q_OS_WINRT
+static void InitParameters(D3DPRESENT_PARAMETERS* d3dpp)
+{
+    ZeroMemory(d3dpp, sizeof(*d3dpp));
+    // use mozilla's parameters
+    d3dpp->Flags                  = D3DPRESENTFLAG_VIDEO;
+    d3dpp->Windowed               = TRUE;
+    d3dpp->hDeviceWindow          = ::GetShellWindow(); //NULL;
+    d3dpp->SwapEffect             = D3DSWAPEFFECT_DISCARD;
+    //d3dpp->MultiSampleType        = D3DMULTISAMPLE_NONE;
+    //d3dpp->PresentationInterval   = D3DPRESENT_INTERVAL_DEFAULT;
+    d3dpp->BackBufferCount        = 1; //0;                  /* FIXME what to put here */
+    d3dpp->BackBufferFormat       = D3DFMT_UNKNOWN; //D3DFMT_X8R8G8B8;    /* FIXME what to put here */
+    d3dpp->BackBufferWidth        = 1; //0;
+    d3dpp->BackBufferHeight       = 1; //0;
+    //d3dpp->EnableAutoDepthStencil = FALSE;
+}
+
+IDirect3DDevice9* CreateDevice9Ex(HINSTANCE dll, IDirect3D9Ex** d3d9ex, D3DADAPTER_IDENTIFIER9 *d3dai)
+{
+    qDebug("creating d3d9 device ex... dll: %p", dll);
+    //http://msdn.microsoft.com/en-us/library/windows/desktop/bb219676(v=vs.85).aspx
+    typedef HRESULT (WINAPI *Create9ExFunc)(UINT SDKVersion, IDirect3D9Ex **ppD3D); //IDirect3D9Ex: void is ok
+    Create9ExFunc Create9Ex = (Create9ExFunc)GetProcAddress(dll, "Direct3DCreate9Ex");
+    if (!Create9Ex) {
+        qWarning("Symbol not found: Direct3DCreate9Ex");
+        return NULL;
+    }
+    DX_ENSURE(Create9Ex(D3D_SDK_VERSION, d3d9ex), NULL); //TODO: will D3D_SDK_VERSION be override by other headers?
+    if (d3dai)
+        DX_WARN((*d3d9ex)->GetAdapterIdentifier(D3DADAPTER_DEFAULT, 0, d3dai));
+
+    D3DPRESENT_PARAMETERS d3dpp;
+    InitParameters(&d3dpp);
+    // D3DCREATE_MULTITHREADED is required by gl interop. https://www.opengl.org/registry/specs/NV/DX_interop.txt
+    // D3DCREATE_SOFTWARE_VERTEXPROCESSING in other dxva decoders. D3DCREATE_HARDWARE_VERTEXPROCESSING in cuda samples
+    DWORD flags = D3DCREATE_FPU_PRESERVE | D3DCREATE_MULTITHREADED | D3DCREATE_MIXED_VERTEXPROCESSING;
+    IDirect3DDevice9Ex *d3d9dev = NULL;
+    // mpv:
+    /* Direct3D needs a HWND to create a device, even without using ::Present
+    this HWND is used to alert Direct3D when there's a change of focus window.
+    For now, use GetDesktopWindow, as it looks harmless */
+    DX_ENSURE((*d3d9ex)->CreateDeviceEx(D3DADAPTER_DEFAULT,
+                                         D3DDEVTYPE_HAL, GetShellWindow(),// GetDesktopWindow(), //GetShellWindow()?
+                                         flags,
+                                         &d3dpp,
+                                         NULL,
+                                         (IDirect3DDevice9Ex**)(&d3d9dev))
+            , NULL);
+    qDebug("IDirect3DDevice9Ex created");
+    return d3d9dev;
+}
+
+IDirect3DDevice9* CreateDevice9(HINSTANCE dll, IDirect3D9** d3d9, D3DADAPTER_IDENTIFIER9 *d3dai)
+{
+    qDebug("creating d3d9 device...");
+    typedef IDirect3D9* (WINAPI *Create9Func)(UINT SDKVersion);
+    Create9Func Create9 = (Create9Func)GetProcAddress(dll, "Direct3DCreate9");
+    if (!Create9) {
+        qWarning("Symbol not found: Direct3DCreate9");
+        return NULL;
+    }
+    *d3d9 = Create9(D3D_SDK_VERSION);
+    if (!(*d3d9)) {
+        qWarning("Direct3DCreate9 failed");
+        return NULL;
+    }
+    if (d3dai)
+        DX_WARN((*d3d9)->GetAdapterIdentifier(D3DADAPTER_DEFAULT, 0, d3dai));
+
+    D3DPRESENT_PARAMETERS d3dpp;
+    InitParameters(&d3dpp);
+    DWORD flags = D3DCREATE_FPU_PRESERVE | D3DCREATE_MULTITHREADED | D3DCREATE_MIXED_VERTEXPROCESSING;
+    IDirect3DDevice9 *d3d9dev = NULL;
+    DX_ENSURE(((*d3d9)->CreateDevice(D3DADAPTER_DEFAULT,
+                                   D3DDEVTYPE_HAL, GetShellWindow(),// GetDesktopWindow(), //GetShellWindow()?
+                                   flags,
+                                   &d3dpp, &d3d9dev))
+            , NULL);
+    qDebug("IDirect3DDevice9 created");
+    return d3d9dev;
+}
+#endif //Q_OS_WINRT
+} // namespace DXHelper
+} //namespace FAV