[Spice-devel] [PATCH qxl-wddm-dod 20/20] qxl-wddm-dod: Non-forced memory allocations with VSync
Frediano Ziglio
fziglio at redhat.com
Tue Mar 28 13:27:15 UTC 2017
From: "yuri.benditovich at daynix.com" <yuri.benditovich at daynix.com>
In case of VSync is active allocate bitmaps for drawable objects
using non-forced requests. If immediate allocation is not possible,
place entire bitmap into memory chunk allocated from the OS.
If bitmap is allocated from device memory, but one of later
chunks can't be allocated, allocate this and further chunks from
OS memory. All these 'delayed' allocations placed into linked list
which root entry is part of QXLOutput structure.
>From separated thread, before send drawable objects down, we review
the list of delayed chunks and allocate device memory (forced) to
all of them.
The cost is 2 pointers added to each drawable or cursor object.
Cursor commands currently do not make use of them; in future
we have an option to offload also cursor commands.
Signed-off-by: Yuri Benditovich <yuri.benditovich at daynix.com>
---
qxldod/QxlDod.cpp | 110 +++++++++++++++++++++++++++++++++++++++++++++++++++---
qxldod/QxlDod.h | 3 ++
2 files changed, 108 insertions(+), 5 deletions(-)
diff --git a/qxldod/QxlDod.cpp b/qxldod/QxlDod.cpp
index 1d3c3f5..e511e90 100755
--- a/qxldod/QxlDod.cpp
+++ b/qxldod/QxlDod.cpp
@@ -4226,6 +4226,13 @@ void QxlDevice::DrawableAddRes(QXLDrawable *drawable, Resource *res)
AddRes(output, res);
}
+static FORCEINLINE PLIST_ENTRY DelayedList(QXLDrawable *pd)
+{
+ QXLOutput *output;
+ output = (QXLOutput *)((UINT8 *)pd - sizeof(QXLOutput));
+ return &output->list;
+}
+
void QxlDevice::CursorCmdAddRes(QXLCursorCmd *cmd, Resource *res)
{
PAGED_CODE();
@@ -4334,6 +4341,7 @@ QXLDrawable *QxlDevice::Drawable(UINT8 type, CONST RECT *area, CONST RECT *clip,
drawable->surfaces_dest[1] = - 1;
drawable->surfaces_dest[2] = -1;
CopyRect(&drawable->bbox, area);
+ InitializeListHead(DelayedList(drawable));
if (!SetClip(clip, drawable)) {
DbgPrint(TRACE_LEVEL_VERBOSE, ("%s: set clip failed\n", __FUNCTION__));
@@ -4427,7 +4435,7 @@ BOOLEAN QxlDevice::AttachNewBitmap(QXLDrawable *drawable, UINT8 *src, UINT8 *src
Resource *image_res;
InternalImage *internal;
QXLDataChunk *chunk;
- PLIST_ENTRY pDelayedList = NULL;
+ PLIST_ENTRY pDelayedList = bForce ? NULL : DelayedList(drawable);
UINT8* dest, *dest_end;
height = drawable->u.copy.src_area.bottom;
@@ -4507,8 +4515,17 @@ BOOLEAN QxlDevice::AttachNewBitmap(QXLDrawable *drawable, UINT8 *src, UINT8 *src
BOOLEAN b = PutBytesAlign(&chunk, &dest, &dest_end, src, line_size, alloc_size, pDelayedList);
if (!b)
{
- DbgPrint(TRACE_LEVEL_WARNING, ("%s: aborting copy of lines\n", __FUNCTION__));
- return FALSE;
+ if (pitch < 0 && bForce)
+ {
+ DbgPrint(TRACE_LEVEL_WARNING, ("%s: aborting copy of lines (forced)\n", __FUNCTION__));
+ return FALSE;
+ }
+ else
+ {
+ DbgPrint(TRACE_LEVEL_WARNING, ("%s: unexpected aborting copy of lines (force %d, pitch %d)\n", __FUNCTION__, bForce, pitch));
+ return FALSE;
+ }
+ break;
}
}
return TRUE;
@@ -4562,7 +4579,7 @@ QXLDrawable *QxlDevice::PrepareBltBits (
UINT8* src_end = src - pSrc->Pitch;
src += pSrc->Pitch * (height - 1);
- if (!AttachNewBitmap(drawable, src, src_end, (INT)pSrc->Pitch, TRUE))
+ if (!AttachNewBitmap(drawable, src, src_end, (INT)pSrc->Pitch, !g_bSupportVSync))
{
ReleaseOutputUnderLock(drawable->release_info.id);
drawable = NULL;
@@ -5202,11 +5219,81 @@ void QxlDevice::StopPresentThread()
}
}
+QXLDataChunk *QxlDevice::MakeChunk(QXL_DELAYED_CHUNK *pdc)
+{
+ QXLDataChunk *chunk = (QXLDataChunk *)AllocMem(MSPACE_TYPE_VRAM, pdc->chunk.data_size + sizeof(QXLDataChunk), TRUE);
+ if (chunk)
+ {
+ chunk->data_size = pdc->chunk.data_size;
+ chunk->next_chunk = 0;
+ RtlCopyMemory(chunk->data, pdc->chunk.data, chunk->data_size);
+ }
+ return chunk;
+}
+
+ULONG QxlDevice::PrepareDrawable(QXLDrawable*& drawable)
+{
+ ULONG n = 0;
+ BOOLEAN bFail = FALSE;
+ PLIST_ENTRY pe = DelayedList(drawable);
+ QXLDataChunk *chunk, *lastchunk = NULL;
+ if (IsListEmpty(pe))
+ return 0;
+
+ while (!IsListEmpty(pe))
+ {
+ QXL_DELAYED_CHUNK *pdc = (QXL_DELAYED_CHUNK *)RemoveHeadList(pe);
+ if (!lastchunk)
+ lastchunk = (QXLDataChunk *)pdc->chunk.prev_chunk;
+ if (!lastchunk)
+ {
+ // bitmap was not allocated, this is single delayed chunk
+ if (AttachNewBitmap(
+ drawable,
+ pdc->chunk.data,
+ pdc->chunk.data + pdc->chunk.data_size,
+ -(drawable->u.copy.src_area.right * 4),
+ TRUE))
+ {
+ ++n;
+ }
+ else
+ {
+ bFail = TRUE;
+ }
+ }
+ if (lastchunk)
+ {
+ // some chunks were not allocated
+ chunk = MakeChunk(pdc);
+ if (chunk)
+ {
+ chunk->prev_chunk = PA(lastchunk, m_SurfaceMemSlot);
+ lastchunk->next_chunk = PA(chunk, m_SurfaceMemSlot);
+ lastchunk = chunk;
+ ++n;
+ }
+ else
+ {
+ bFail = TRUE;
+ }
+ }
+ delete[] reinterpret_cast<BYTE*>(pdc);
+ }
+ if (bFail)
+ {
+ ReleaseOutputUnderLock(drawable->release_info.id);
+ drawable = NULL;
+ }
+ return n;
+}
+
void QxlDevice::PresentThreadRoutine()
{
PAGED_CODE();
int wait;
int notify;
+ ULONG delayed = 0;
QXLDrawable** drawables;
DbgPrint(TRACE_LEVEL_INFORMATION, ("--->%s\n", __FUNCTION__));
@@ -5231,13 +5318,26 @@ void QxlDevice::PresentThreadRoutine()
if (drawables) {
for (UINT i = 0; drawables[i]; ++i)
- PushDrawable(drawables[i]);
+ {
+ ULONG n = PrepareDrawable(drawables[i]);
+ // only reason why drawables[i] is zeroed is stop flow
+ if (drawables[i])
+ {
+ delayed += n;
+ PushDrawable(drawables[i]);
+ }
+ }
delete[] drawables;
}
else {
DbgPrint(TRACE_LEVEL_WARNING, ("%s is being terminated\n", __FUNCTION__));
break;
}
+ if (delayed)
+ {
+ DbgPrint(TRACE_LEVEL_WARNING, ("%s: %d delayed chunks\n", __FUNCTION__, delayed));
+ delayed = 0;
+ }
}
}
diff --git a/qxldod/QxlDod.h b/qxldod/QxlDod.h
index 42f4190..333482e 100755
--- a/qxldod/QxlDod.h
+++ b/qxldod/QxlDod.h
@@ -474,6 +474,7 @@ ReleaseMutex(
#define MAX_OUTPUT_RES 6
typedef struct QXLOutput {
+ LIST_ENTRY list;
UINT32 num_res;
#ifdef DBG
UINT32 type;
@@ -613,6 +614,8 @@ private:
BOOLEAN PutBytesAlign(QXLDataChunk **chunk_ptr, UINT8 **now_ptr,
UINT8 **end_ptr, UINT8 *src, int size,
size_t alloc_size, PLIST_ENTRY pDelayed);
+ QXLDataChunk *MakeChunk(QXL_DELAYED_CHUNK *pdc);
+ ULONG PrepareDrawable(QXLDrawable*& drawable);
void AsyncIo(UCHAR Port, UCHAR Value);
void SyncIo(UCHAR Port, UCHAR Value);
NTSTATUS UpdateChildStatus(BOOLEAN connect);
--
2.9.3
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