[Spice-devel,v2,6/6] qxl-wddm-dod: Preparation for VSync activation

Submitted by Yuri Benditovich on Feb. 15, 2017, noon

Details

Message ID 1487160015-147620-7-git-send-email-yuri.benditovich@daynix.com
State New
Headers show
Series "Preparation to pass HLK tests" ( rev: 1 ) in Spice

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Commit Message

Yuri Benditovich Feb. 15, 2017, noon
Prepare all the procedures needed for VSync feature but
do not turn it on yet. Manual uncomment still required to
enable it.
Advanced users may enable VSync feature and report functional
problem with it. The driver is expected to pass all the formal
tests under HLK 1607 with device rev.3 and rev.4 but with
device rev.4 on setups with high load or long round-trip delay
video system may detect timeout during rendering operation
and disable the driver with error 43.

Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
---
 qxldod/driver.cpp | 52 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 qxldod/driver.h   | 15 +++++++++++++++
 2 files changed, 67 insertions(+)

Patch hide | download patch | download mbox

diff --git a/qxldod/driver.cpp b/qxldod/driver.cpp
index dc84aa8..5bd57b4 100755
--- a/qxldod/driver.cpp
+++ b/qxldod/driver.cpp
@@ -32,6 +32,19 @@  DriverEntry(
 
     DbgPrint(TRACE_LEVEL_FATAL, ("---> KMDOD build on on %s %s\n", __DATE__, __TIME__));
 
+    RTL_OSVERSIONINFOW versionInfo;
+    versionInfo.dwOSVersionInfoSize = sizeof(versionInfo);
+
+
+    RtlGetVersion(&versionInfo);
+    if (versionInfo.dwBuildNumber >= 14393 || versionInfo.dwBuildNumber <= 9600)
+    {
+        //g_bSupportVSync = TRUE;
+    }
+    DbgPrint(TRACE_LEVEL_WARNING, ("VSync support %sabled for %d.%d.%d\n",
+        g_bSupportVSync ? "en" : "dis",
+        versionInfo.dwMajorVersion, versionInfo.dwMinorVersion, versionInfo.dwBuildNumber));
+
     // Initialize DDI function pointers and dxgkrnl
     KMDDOD_INITIALIZATION_DATA InitialData = {0};
 
@@ -67,6 +80,11 @@  DriverEntry(
     InitialData.DxgkDdiStopDeviceAndReleasePostDisplayOwnership = DodStopDeviceAndReleasePostDisplayOwnership;
     InitialData.DxgkDdiSystemDisplayEnable          = DodSystemDisplayEnable;
     InitialData.DxgkDdiSystemDisplayWrite           = DodSystemDisplayWrite;
+    if (g_bSupportVSync)
+    {
+        InitialData.DxgkDdiControlInterrupt = DodControlInterrupt;
+        InitialData.DxgkDdiGetScanLine = DodGetScanLine;
+    }
 
     NTSTATUS Status = DxgkInitializeDisplayOnlyDriver(pDriverObject, pRegistryPath, &InitialData);
     if (!NT_SUCCESS(Status))
@@ -559,6 +577,40 @@  DodQueryVidPnHWCapability(
     return pQxl->QueryVidPnHWCapability(pVidPnHWCaps);
 }
 
+NTSTATUS
+APIENTRY
+DodControlInterrupt(
+    IN_CONST_HANDLE                 hAdapter,
+    IN_CONST_DXGK_INTERRUPT_TYPE    InterruptType,
+    IN_BOOLEAN                      EnableInterrupt
+)
+{
+    PAGED_CODE();
+    QxlDod* pQxl = reinterpret_cast<QxlDod*>(hAdapter);
+    if (InterruptType == DXGK_INTERRUPT_DISPLAYONLY_VSYNC)
+    {
+        pQxl->EnableVsync(EnableInterrupt);
+        return STATUS_SUCCESS;
+    }
+    return  STATUS_NOT_IMPLEMENTED;
+}
+
+NTSTATUS
+APIENTRY
+DodGetScanLine(
+    IN_CONST_HANDLE             hAdapter,
+    INOUT_PDXGKARG_GETSCANLINE  pGetScanLine
+)
+{
+    PAGED_CODE();
+    // Currently we do not see any practical use case when this procedure is called
+    // IDirectDraw has an interface for querying scan line
+    // Leave it not implemented like remote desktop does
+    // until we recognize use case for more intelligent implementation
+    DbgPrint(TRACE_LEVEL_ERROR, ("<---> %s\n", __FUNCTION__));
+    return STATUS_NOT_IMPLEMENTED;
+}
+
 //END: Paged Code
 #pragma code_seg(pop)
 
diff --git a/qxldod/driver.h b/qxldod/driver.h
index 97b9415..2dcbda4 100755
--- a/qxldod/driver.h
+++ b/qxldod/driver.h
@@ -217,6 +217,21 @@  DodSystemDisplayWrite(
     _In_  UINT  PositionX,
     _In_  UINT  PositionY);
 
+NTSTATUS
+APIENTRY
+DodControlInterrupt(
+    IN_CONST_HANDLE                 hAdapter,
+    IN_CONST_DXGK_INTERRUPT_TYPE    InterruptType,
+    IN_BOOLEAN                      EnableInterrupt
+);
+
+NTSTATUS
+APIENTRY
+DodGetScanLine(
+    IN_CONST_HANDLE             hAdapter,
+    INOUT_PDXGKARG_GETSCANLINE  pGetScanLine
+);
+
 #if DBG
 
 extern int nDebugLevel;