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Windows2003-3790/termsrv/drivers/rdp/rdpdd/nsbcdisp.c
Microsoft 50969b0ea2 First commit
2020-09-30 16:53:55 +02:00

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/****************************************************************************/
// nsbcdisp.c
//
// RDP Send Bitmap Cache display driver code
//
// Copyright (C) 1997-2000 Microsoft Corporation
/****************************************************************************/
#include <precmpdd.h>
#define hdrstop
#define TRC_FILE "nsbcdisp"
#include <adcg.h>
#include <atrcapi.h>
#define DC_INCLUDE_DATA
#include <ndddata.c>
#include <noedata.c>
#undef DC_INCLUDE_DATA
#include <asbcapi.h>
#include <nsbcdisp.h>
#include <noadisp.h>
#include <abcapi.h>
#include <nprcount.h>
#include <nschdisp.h>
#include <nchdisp.h>
#include <noedisp.h>
#include <nsbcinl.h>
#include <nsbcddat.c>
#ifdef DC_DEBUG
BOOL SBC_VerifyBitmapBits(PBYTE pBitmapData, unsigned cbBitmapSize, UINT iCacheID, UINT iCacheIndex);
#endif
/****************************************************************************/
// SBC_DDInit: SBC display driver initialization function.
/****************************************************************************/
void RDPCALL SBC_DDInit(PDD_PDEV pPDev)
{
DC_BEGIN_FN("SBC_DDInit");
// Initializes all the global data for this component.
#define DC_INIT_DATA
#include <nsbcddat.c>
#undef DC_INIT_DATA
#ifndef DC_HICOLOR
sbcClientBitsPerPel = pPDev->cClientBitsPerPel;
#endif
TRC_NRM((TB, "Completed SBC_DDInit"));
DC_END_FN();
}
/****************************************************************************/
// SBC_InitShm(): Inits the SBC shm component on connect/reconnect.
/****************************************************************************/
void RDPCALL SBC_InitShm(void)
{
DC_BEGIN_FN("SBC_InitShm");
// Zero only the parts which need to be zeroed.
memset(&pddShm->sbc, 0, sizeof(SBC_SHARED_DATA));
DC_END_FN();
}
/****************************************************************************/
// SBCProcessBitmapKeyDatabase
//
// Given persistent bitmap key database, populates caches.
/****************************************************************************/
__inline void RDPCALL SBCProcessBitmapKeyDatabase(
SBC_BITMAP_CACHE_KEY_INFO *pKeyDatabase)
{
unsigned i, j;
#ifdef DC_DEBUG
unsigned BitmapHdrSize;
SBC_BITMAP_CACHE_EXTRA_INFO *pBitmapHdr;
#endif
DC_BEGIN_FN("SBCProcessBitmapKeyDatabase");
// This call should not be made if the database ptr is NULL.
TRC_ASSERT((pKeyDatabase != NULL), (TB,"NULL pKeyDatabase"));
for (i = 0; i < pddShm->sbc.NumBitmapCaches; i++) {
TRC_NRM((TB,"Cache %d: %d keys", i, pKeyDatabase->NumKeys[i]));
// Place each persistent key in its corresponding index
// in the cache. Note that the MRU sequence is implicit in the
// order in the database -- CH_ForceCacheKeyAtIndex() appends the
// entry to the MRU.
for (j = 0; j < pKeyDatabase->NumKeys[i]; j++) {
if ((&(pKeyDatabase->Keys[pKeyDatabase->KeyStart[i]]))[j].Key1 !=
TS_BITMAPCACHE_NULL_KEY ||
(&(pKeyDatabase->Keys[pKeyDatabase->KeyStart[i]]))[j].Key2 !=
TS_BITMAPCACHE_NULL_KEY) {
#ifdef DC_DEBUG
// We have no cache bits, so set the header data size to zero
// on debug.
BitmapHdrSize = sizeof(SBC_BITMAP_CACHE_EXTRA_INFO) +
SBC_CellSizeFromCacheID(i);
if (pddShm->sbc.bitmapCacheInfo[i].pExtraEntryInfo != NULL) {
pBitmapHdr = (SBC_BITMAP_CACHE_EXTRA_INFO *)(pddShm->sbc.
bitmapCacheInfo[i].pExtraEntryInfo +
(&(pKeyDatabase->Keys[pKeyDatabase->KeyStart[i]]))[j].CacheIndex *
BitmapHdrSize);
pBitmapHdr->DataSize = 0;
}
#endif
// We have to set the UserDefined to NULL since we have no
// associated fast-path cache entry pointer.
CH_ForceCacheKeyAtIndex(
pddShm->sbc.bitmapCacheInfo[i].cacheHandle,
(&(pKeyDatabase->Keys[pKeyDatabase->KeyStart[i]]))[j].CacheIndex,
(&(pKeyDatabase->Keys[pKeyDatabase->KeyStart[i]]))[j].Key1,
(&(pKeyDatabase->Keys[pKeyDatabase->KeyStart[i]]))[j].Key2,
NULL);
}
}
}
DC_END_FN();
}
/****************************************************************************/
// SBCAllocBitmapCache; Allocates bitmap cache data buffers according to the
// current negotiated capabilities.
//
// Returns: SBC_BITMAP_CACHE_ENABLED if successful, 0 otherwise.
/****************************************************************************/
unsigned RDPCALL SBCAllocBitmapCache(PCHCACHEHANDLE pCacheHandle)
{
SIZEL TileSize;
BOOLEAN rc;
unsigned i, j;
unsigned TotalCacheEntries;
unsigned iFormat;
PSBC_BITMAP_CACHE_INFO pInfo;
PCHCACHEDATA pCacheData;
#if DC_DEBUG
unsigned BitmapHdrSize;
#endif
DC_BEGIN_FN("SBCAllocBitmapCache");
TRC_NRM((TB, "Alloc bitmap cache data and work bitmaps"));
rc = FALSE;
i = j = 0;
// Cell caching is disabled if NumCellCaches is zero. It is set to
// zero by the WD caps negotiation code if the client indicated zero,
// if any of the requested cell cache NumEntries is zero, or if the rev1
// caps returned a CacheNMaximumCellSize that was not the required tile
// size.
if (pddShm->sbc.NumBitmapCaches > 0) {
// Work tile bitmap format type, and translation buffer for 4bpp to
// 8bpp conversions. The translation buffer must be as large as the
// largest tile size.
if (sbcClientBitsPerPel != 4) {
#ifdef DC_HICOLOR
if (sbcClientBitsPerPel == 24)
{
iFormat = BMF_24BPP;
}
else if ((sbcClientBitsPerPel == 16) || (sbcClientBitsPerPel == 15))
{
iFormat = BMF_16BPP;
}
else
{
iFormat = BMF_8BPP;
}
#else
iFormat = BMF_8BPP;
#endif
}
else {
iFormat = BMF_4BPP;
sbcXlateBuf = EngAllocMem(0, SBC_CellSizeFromCacheID(
pddShm->sbc.NumBitmapCaches - 1), DD_ALLOC_TAG);
if (sbcXlateBuf == NULL) {
TRC_ERR((TB,"Failed to create 4bpp to 8bpp translate buf"));
DC_QUIT;
}
}
TotalCacheEntries = 0;
for (i = 0; i < pddShm->sbc.NumBitmapCaches; i++) {
pInfo = &(pddShm->sbc.bitmapCacheInfo[i]);
// Create a square work tile bitmap.
// We set the last parameter to NULL, to allow GDI to allocate
// memory for the bits. We can get a pointer to the bits later
// when we have a SURFOBJ for the bitmap.
TileSize.cx = TileSize.cy = (SBC_CACHE_0_DIMENSION << i);
pddShm->sbc.bitmapCacheInfo[i].hWorkBitmap = (HSURF)
EngCreateBitmap(TileSize,
TS_BYTES_IN_SCANLINE(TileSize.cx, sbcClientBitsPerPel),
iFormat, 0, NULL);
if (pddShm->sbc.bitmapCacheInfo[i].hWorkBitmap == NULL) {
TRC_ERR((TB, "Failed to create work bitmap %d", i));
DC_QUIT;
}
#ifdef DC_DEBUG
// Alloc set of SBC_BITMAP_DATA_HEADERs and space for bitmap
// bits to be kept for comparison in debug builds.
BitmapHdrSize = sizeof(SBC_BITMAP_CACHE_EXTRA_INFO) +
SBC_CellSizeFromCacheID(i);
pInfo->pExtraEntryInfo = EngAllocMem(0,
pInfo->Info.NumEntries * BitmapHdrSize, DD_ALLOC_TAG);
// If persistent cache is enabled and in high-color, we will ask for big memory (~20MB)
// from session space and memory allocation will fail.
// We don't quit here if memory allocation fails since this memory is only for
// comparison use in debug build. We'll check the NULL pointer in every usage of this memory (not many)
if (pInfo->pExtraEntryInfo == NULL) {
TRC_ERR((TB, "Failed to alloc save-bitmap-data memory "
"(cell cache %u)", i));
//DC_QUIT;
}
#endif
// We create the bitmap caches with their indices (cache IDs) in
// the pContext value so we can backtrack the cache ID when
// using the fast-path cache.
if (pInfo->Info.NumEntries) {
pCacheData = (PCHCACHEDATA)(*pCacheHandle);
// Bitmap cache list handle
CH_InitCache(pCacheData, pInfo->Info.NumEntries,
(void *)ULongToPtr(i), TRUE, FALSE, SBCBitmapCacheCallback);
pInfo->cacheHandle = pCacheData;
(BYTE *)(*pCacheHandle) += CH_CalculateCacheSize(
pInfo->Info.NumEntries);
TRC_NRM((TB, "Created cell cache %u: hCache=%p, NumEntries=%u", i,
pInfo->cacheHandle, pInfo->Info.NumEntries));
TotalCacheEntries += pInfo->Info.NumEntries;
// Waiting list cache handle
if (pddShm->sbc.fAllowCacheWaitingList) {
pCacheData = (PCHCACHEDATA)(*pCacheHandle);
CH_InitCache(pCacheData, pInfo->Info.NumEntries,
(void *)ULongToPtr(i), FALSE, FALSE, NULL);
pInfo->waitingListHandle = pCacheData;
(BYTE *)(*pCacheHandle) += CH_CalculateCacheSize(
pInfo->Info.NumEntries);
}
else {
pInfo->waitingListHandle = NULL;
}
}
else {
TRC_ERR((TB, "Zero entry Cache %d", i));
DC_QUIT;
}
}
// Allocate fast path cache.
pCacheData = (PCHCACHEDATA)(*pCacheHandle);
CH_InitCache(pCacheData, TotalCacheEntries,
NULL, TRUE, FALSE, SBCFastPathCacheCallback);
pddShm->sbc.hFastPathCache = pCacheData;
TRC_NRM((TB, "Fast Path Cache created(%p) entries(%u)",
pddShm->sbc.hFastPathCache, TotalCacheEntries));
(BYTE*)(*pCacheHandle) += CH_CalculateCacheSize(TotalCacheEntries);
//
// Color table cache is only required for lo color sessions
// But we need to allocate for shadow case, when a 256 color
// client shadows a high color client or console.
//
// Allocate color table cache. This is required for bitmap caching.
pCacheData = (PCHCACHEDATA)(*pCacheHandle);
CH_InitCache(pCacheData,
SBC_NUM_COLOR_TABLE_CACHE_ENTRIES, NULL, FALSE, FALSE, NULL);
sbcColorTableCacheHandle = pCacheData;
(BYTE *)(*pCacheHandle) += CH_CalculateCacheSize(
SBC_NUM_COLOR_TABLE_CACHE_ENTRIES);
//
// This is only needed for 256 client case.
//
if (sbcClientBitsPerPel <= 8)
{
// Make sure we send a first color table to the client. This is important
// to do here because on a server-initiated sync we no longer force
// the color table to be sent again to save bandwidth. On 8-bit clients
// this is not a problem since the palette is always set with
// DrvSetPalette. However, on 4-bit clients, the client's color tables
// are never initialized until we send one across.
sbcPaletteChanged = TRUE;
}
rc = TRUE;
}
DC_EXIT_POINT:
// If we failed to allocate some or all of the required resources then
// free up any that we did allocate before we return the failure code.
if (rc == FALSE) {
SBCFreeBitmapCacheData();
// Don't waste space for bitmap cache. back it up
for (j = 0; j < i; j++) {
pInfo = &(pddShm->sbc.bitmapCacheInfo[j]);
(BYTE *)(*pCacheHandle) -= CH_CalculateCacheSize(
pInfo->Info.NumEntries);
}
}
DC_END_FN();
return (rc ? SBC_BITMAP_CACHE_ENABLED : 0);
}
/****************************************************************************/
// SBCCreateGlyphCache
//
// Creates a single bitmap cache of a given size. Returns FALSE on failure.
/****************************************************************************/
__inline BOOLEAN RDPCALL SBCCreateGlyphCache(
unsigned cEntries,
unsigned cbCellSize,
PCHCACHEDATA pCacheData)
{
BOOLEAN rc;
DC_BEGIN_FN("SBC_CreateGlyphCache");
if (cEntries != 0 && cbCellSize != 0) {
// Allocate glyph cache.
CH_InitCache(pCacheData, cEntries, NULL, FALSE, TRUE,
SBCGlyphCallback);
rc = TRUE;
}
else {
TRC_ERR((TB, "Zero: cEntries(%u) cbCellSize(%u)", cEntries,
cbCellSize));
rc = FALSE;
}
TRC_NRM((TB, "Created glyph cache: pCacheData(%p), cEntries(%u) "
"cbCellSize(%u)", pCacheData, cEntries, cbCellSize));
DC_END_FN();
return rc;
}
/****************************************************************************/
// SBCCreateFragCache
//
// Creates a single bitmap cache of a given size. Returns FALSE on failure.
/****************************************************************************/
__inline BOOLEAN RDPCALL SBCCreateFragCache(
unsigned cEntries,
unsigned cbCellSize,
PCHCACHEDATA pCacheData)
{
BOOLEAN rc;
DC_BEGIN_FN("SBCCreateFragCache");
if (cEntries != 0 && cbCellSize != 0) {
CH_InitCache(pCacheData, cEntries, NULL, FALSE, FALSE, NULL);
rc = TRUE;
}
else {
TRC_ERR((TB, "Zero: cEntries(%u) cbCellSize(%u)", cEntries,
cbCellSize));
rc = FALSE;
}
TRC_NRM((TB, "Created frag cache: pCacheData(%p), cEntries(%u) "
"cbCellSize(%u)", pCacheData, cEntries, cbCellSize));
DC_END_FN();
return rc;
}
/****************************************************************************/
// SBCAllocGlyphCache: Allocates glyph cache data buffers according to the
// current negotiated capabilities.
//
// Returns: SBC_GLYPH_CACHE_ENABLED if successful, 0 otherwise.
/****************************************************************************/
unsigned RDPCALL SBCAllocGlyphCache(PCHCACHEHANDLE pCacheHandle)
{
BOOLEAN rc;
unsigned i;
PSBC_GLYPH_CACHE_INFO pGlyphCacheInfo;
PSBC_FRAG_CACHE_INFO pFragCacheInfo;
PCHCACHEDATA pCacheData;
DC_BEGIN_FN("SBCAllocGlyphCache");
TRC_NRM((TB, "Alloc glyph cache data"));
rc = FALSE;
// Create glyph cache(s).
if (pddShm->sbc.caps.GlyphSupportLevel > 0) {
for (i = 0; i < SBC_NUM_GLYPH_CACHES; i++) {
pGlyphCacheInfo = &(pddShm->sbc.glyphCacheInfo[i]);
pCacheData = (PCHCACHEDATA)(*pCacheHandle);
if (SBCCreateGlyphCache(
pddShm->sbc.caps.glyphCacheSize[i].cEntries,
pddShm->sbc.caps.glyphCacheSize[i].cbCellSize,
pCacheData)) {
TRC_NRM((TB,
"Created glyph cache %u: cEntries(%u), cbCellSize(%u)",
i,
pddShm->sbc.caps.glyphCacheSize[i].cEntries,
pddShm->sbc.caps.glyphCacheSize[i].cbCellSize));
pGlyphCacheInfo->cbCellSize =
pddShm->sbc.caps.glyphCacheSize[i].cbCellSize;
pGlyphCacheInfo->cacheHandle = pCacheData;
(BYTE *)(*pCacheHandle) += CH_CalculateCacheSize(
pddShm->sbc.caps.glyphCacheSize[i].cEntries);
sbcFontCacheInfoListSize += pddShm->sbc.caps.glyphCacheSize[i].cEntries;
rc = TRUE;
}
else {
TRC_ERR((TB,
"Failed to create glyph cache %u: cEntries(%u), cbCellSize(%u)",
i,
pddShm->sbc.caps.glyphCacheSize[i].cEntries,
pddShm->sbc.caps.glyphCacheSize[i].cbCellSize));
pGlyphCacheInfo->cbCellSize = 0;
}
}
// Create fragment cache.
if (rc) {
pFragCacheInfo = pddShm->sbc.fragCacheInfo;
pCacheData = (PCHCACHEDATA)(*pCacheHandle);
if (SBCCreateFragCache(pddShm->sbc.caps.fragCacheSize[0].cEntries,
pddShm->sbc.caps.fragCacheSize[0].cbCellSize,
pCacheData)) {
pFragCacheInfo->cbCellSize = pddShm->sbc.caps.fragCacheSize[0].
cbCellSize;
pFragCacheInfo->cacheHandle = pCacheData;
(BYTE*)(*pCacheHandle) += CH_CalculateCacheSize(
pddShm->sbc.caps.fragCacheSize[0].cEntries);
}
else {
pFragCacheInfo->cbCellSize = 0;
}
}
// Create the list to store font context info data
if (rc ) {
sbcFontCacheInfoList = (PFONTCACHEINFO *) EngAllocMem(0,
sizeof(PFONTCACHEINFO) * sbcFontCacheInfoListSize,
DD_ALLOC_TAG);
}
}
DC_END_FN();
return (rc ? SBC_GLYPH_CACHE_ENABLED : 0);
}
/****************************************************************************/
/* Name: SBCAllocBrushCache */
/* */
/* Purpose: Allocates brush cache data buffers according to the */
/* current negotiated capabilities. */
/* */
/* Returns: TRUE if successful, FALSE otherwise. */
/****************************************************************************/
unsigned RDPCALL SBCAllocBrushCache(PCHCACHEHANDLE pCacheHandle)
{
BOOLEAN rc = FALSE;
PCHCACHEDATA pCacheData;
DC_BEGIN_FN("SBCAllocBrushCache");
TRC_NRM((TB, "Alloc brush cache data"));
if (pddShm->sbc.caps.brushSupportLevel > TS_BRUSH_DEFAULT)
{
/********************************************************************/
/* Allocate brush caches */
/********************************************************************/
// small brush cache
pCacheData = (PCHCACHEDATA) (*pCacheHandle);
CH_InitCache(pCacheData, SBC_NUM_BRUSH_CACHE_ENTRIES, NULL,
FALSE, FALSE, NULL);
sbcSmallBrushCacheHandle = pCacheData;
(BYTE *)(*pCacheHandle) += CH_CalculateCacheSize(SBC_NUM_BRUSH_CACHE_ENTRIES);
// large brush cache
pCacheData = (PCHCACHEDATA) (*pCacheHandle);
CH_InitCache(pCacheData, SBC_NUM_BRUSH_CACHE_ENTRIES, NULL,
FALSE, FALSE, NULL);
sbcLargeBrushCacheHandle = pCacheData;
(BYTE *)(*pCacheHandle) += CH_CalculateCacheSize(SBC_NUM_BRUSH_CACHE_ENTRIES);
rc = TRUE;
}
DC_END_FN();
return (rc ? SBC_BRUSH_CACHE_ENABLED : 0);
}
/****************************************************************************/
// SBCAllocOffscreenBitmapCache
/****************************************************************************/
unsigned RDPCALL SBCAllocOffscreenBitmapCache(PCHCACHEHANDLE pCacheHandle)
{
BOOLEAN rc = FALSE;
PCHCACHEDATA pCacheData;
DC_BEGIN_FN("SBCAllocOffscreenBitmapCache");
if (pddShm->sbc.offscreenCacheInfo.supportLevel > TS_OFFSCREEN_DEFAULT) {
// Allocate memory for offscreen bitmap delete list
sbcOffscrBitmapsDelList = (PSBC_OFFSCR_BITMAP_DEL_INFO) EngAllocMem(0,
sizeof(SBC_OFFSCR_BITMAP_DEL_INFO) *
pddShm->sbc.offscreenCacheInfo.cacheEntries,
DD_ALLOC_TAG);
if (sbcOffscrBitmapsDelList) {
pCacheData = (PCHCACHEDATA) (*pCacheHandle);
CH_InitCache(pCacheData, pddShm->sbc.offscreenCacheInfo.cacheEntries, NULL,
TRUE, FALSE, SBCOffscreenCallback);
sbcOffscreenBitmapCacheHandle = pCacheData;
(BYTE *)(*pCacheHandle) +=
CH_CalculateCacheSize(pddShm->sbc.offscreenCacheInfo.cacheEntries);
rc = TRUE;
} else {
rc = FALSE;
}
}
DC_END_FN();
return (rc ? SBC_OFFSCREEN_CACHE_ENABLED : 0);
}
#ifdef DRAW_NINEGRID
/****************************************************************************/
// SBCAllocDrawNineGridBitmapCache
/****************************************************************************/
unsigned RDPCALL SBCAllocDrawNineGridBitmapCache(PCHCACHEHANDLE pCacheHandle)
{
BOOLEAN rc = FALSE;
PCHCACHEDATA pCacheData;
DC_BEGIN_FN("SBCAllocDrawNineGridBitmapCache");
if (pddShm->sbc.drawNineGridCacheInfo.supportLevel > TS_DRAW_NINEGRID_DEFAULT) {
pCacheData = (PCHCACHEDATA) (*pCacheHandle);
CH_InitCache(pCacheData, pddShm->sbc.drawNineGridCacheInfo.cacheEntries, NULL,
FALSE, FALSE, NULL);
sbcDrawNineGridBitmapCacheHandle = pCacheData;
(BYTE *)(*pCacheHandle) +=
CH_CalculateCacheSize(pddShm->sbc.drawNineGridCacheInfo.cacheEntries);
rc = TRUE;
}
DC_END_FN();
return (rc ? SBC_DRAWNINEGRID_CACHE_ENABLED : 0);
}
#endif
#ifdef DRAW_GDIPLUS
/****************************************************************************/
// SBCAllocDrawGdiplusCache
/****************************************************************************/
unsigned RDPCALL SBCAllocDrawGdiplusCache(PCHCACHEHANDLE pCacheHandle)
{
BOOLEAN rc = FALSE;
PCHCACHEDATA pCacheData;
DC_BEGIN_FN("SBCAllocDrawGdiplusCache");
if ((pddShm->sbc.drawGdiplusInfo.supportLevel > TS_DRAW_GDIPLUS_DEFAULT) &&
(pddShm->sbc.drawGdiplusInfo.GdipCacheLevel > TS_DRAW_GDIPLUS_CACHE_LEVEL_DEFAULT)) {
pCacheData = (PCHCACHEDATA) (*pCacheHandle);
sbcGdipGraphicsCacheHandle = (PCHCACHEDATA) (*pCacheHandle);
CH_InitCache(sbcGdipGraphicsCacheHandle, pddShm->sbc.drawGdiplusInfo.GdipCacheEntries.GdipGraphicsCacheEntries, NULL,
FALSE, FALSE, NULL);
(BYTE *)(*pCacheHandle) +=
CH_CalculateCacheSize(pddShm->sbc.drawGdiplusInfo.GdipCacheEntries.GdipGraphicsCacheEntries);
sbcGdipObjectBrushCacheHandle = (PCHCACHEDATA) (*pCacheHandle);
CH_InitCache(sbcGdipObjectBrushCacheHandle, pddShm->sbc.drawGdiplusInfo.GdipCacheEntries.GdipObjectBrushCacheEntries, NULL,
FALSE, FALSE, NULL);
(BYTE *)(*pCacheHandle) +=
CH_CalculateCacheSize(pddShm->sbc.drawGdiplusInfo.GdipCacheEntries.GdipObjectBrushCacheEntries);
sbcGdipObjectPenCacheHandle = (PCHCACHEDATA) (*pCacheHandle);
CH_InitCache(sbcGdipObjectPenCacheHandle, pddShm->sbc.drawGdiplusInfo.GdipCacheEntries.GdipObjectPenCacheEntries, NULL,
FALSE, FALSE, NULL);
(BYTE *)(*pCacheHandle) +=
CH_CalculateCacheSize(pddShm->sbc.drawGdiplusInfo.GdipCacheEntries.GdipObjectPenCacheEntries);
sbcGdipObjectImageCacheHandle = (PCHCACHEDATA) (*pCacheHandle);
CH_InitCache(sbcGdipObjectImageCacheHandle, pddShm->sbc.drawGdiplusInfo.GdipCacheEntries.GdipObjectImageCacheEntries, NULL,
FALSE, FALSE, NULL);
(BYTE *)(*pCacheHandle) +=
CH_CalculateCacheSize(pddShm->sbc.drawGdiplusInfo.GdipCacheEntries.GdipObjectImageCacheEntries);
sbcGdipObjectImageAttributesCacheHandle = (PCHCACHEDATA) (*pCacheHandle);
CH_InitCache(sbcGdipObjectImageAttributesCacheHandle, pddShm->sbc.drawGdiplusInfo.GdipCacheEntries.GdipObjectImageAttributesCacheEntries, NULL,
FALSE, FALSE, NULL);
(BYTE *)(*pCacheHandle) +=
CH_CalculateCacheSize(pddShm->sbc.drawGdiplusInfo.GdipCacheEntries.GdipObjectImageAttributesCacheEntries);
sbcGdipGraphicsCacheChunkSize = pddShm->sbc.drawGdiplusInfo.GdipCacheChunkSize.GdipGraphicsCacheChunkSize;
sbcGdipObjectBrushCacheChunkSize = pddShm->sbc.drawGdiplusInfo.GdipCacheChunkSize.GdipObjectBrushCacheChunkSize;
sbcGdipObjectPenCacheChunkSize = pddShm->sbc.drawGdiplusInfo.GdipCacheChunkSize.GdipObjectPenCacheChunkSize;
sbcGdipObjectImageAttributesCacheChunkSize = pddShm->sbc.drawGdiplusInfo.GdipCacheChunkSize.GdipObjectImageAttributesCacheChunkSize;
sbcGdipObjectImageCacheChunkSize = pddShm->sbc.drawGdiplusInfo.GdipImageCacheProperties.GdipObjectImageCacheChunkSize;
sbcGdipObjectImageCacheMaxSize = pddShm->sbc.drawGdiplusInfo.GdipImageCacheProperties.GdipObjectImageCacheMaxSize;
sbcGdipObjectImageCacheTotalSize = pddShm->sbc.drawGdiplusInfo.GdipImageCacheProperties.GdipObjectImageCacheTotalSize;
sbcGdipObjectImageCacheSizeUsed = 0;
sbcGdipObjectImageCacheSizeList = (UINT16 *)EngAllocMem(0,
pddShm->sbc.drawGdiplusInfo.GdipCacheEntries.GdipObjectImageCacheEntries * sizeof(UINT16), DD_ALLOC_TAG);
if (sbcGdipObjectImageCacheSizeList == NULL) {
rc = FALSE;
DC_QUIT;
}
rc = TRUE;
}
DC_END_FN();
DC_EXIT_POINT:
return (rc ? SBC_DRAWGDIPLUS_CACHE_ENABLED : 0);
}
#endif // DRAW_GDIPLUS
void RDPCALL SBCAllocCaches(void)
{
UINT i;
ULONG cacheSize;
PCHCACHEDATA pCacheData;
DC_BEGIN_FN("SBCAllocCaches");
TRC_NRM((TB, "Alloc SBC cache data"));
// Initialize cacheSize;
cacheSize = 0;
// Calculate glyph fragment cache sizes.
if (pddShm->sbc.caps.GlyphSupportLevel > 0) {
for (i = 0; i < SBC_NUM_GLYPH_CACHES; i++)
cacheSize += CH_CalculateCacheSize(
pddShm->sbc.caps.glyphCacheSize[i].cEntries);
cacheSize += CH_CalculateCacheSize(
pddShm->sbc.caps.fragCacheSize[0].cEntries);
}
if (pddShm->sbc.NumBitmapCaches > 0) {
UINT totalEntries = 0;
// Calculate bitmap cache sizes
for (i = 0; i < pddShm->sbc.NumBitmapCaches; i++) {
// one for the cache, another for the waiting list
if (pddShm->sbc.fAllowCacheWaitingList) {
cacheSize += CH_CalculateCacheSize(
pddShm->sbc.bitmapCacheInfo[i].Info.NumEntries) * 2;
}
else {
cacheSize += CH_CalculateCacheSize(
pddShm->sbc.bitmapCacheInfo[i].Info.NumEntries);
}
totalEntries += pddShm->sbc.bitmapCacheInfo[i].Info.NumEntries;
}
// fast path cache
cacheSize += CH_CalculateCacheSize(totalEntries);
// Calculate color table cache
cacheSize += CH_CalculateCacheSize(
SBC_NUM_COLOR_TABLE_CACHE_ENTRIES);
}
// Calculate brush cache size
if (pddShm->sbc.caps.brushSupportLevel > TS_BRUSH_DEFAULT) {
// both large brush cache and small brush cache
cacheSize += CH_CalculateCacheSize(SBC_NUM_BRUSH_CACHE_ENTRIES) * 2;
}
// Calculate offscreen cache size
if (pddShm->sbc.offscreenCacheInfo.supportLevel > TS_OFFSCREEN_DEFAULT) {
cacheSize += CH_CalculateCacheSize(pddShm->sbc.offscreenCacheInfo.cacheEntries);
}
#ifdef DRAW_NINEGRID
// Calculate drawstream cache size
if (pddShm->sbc.drawNineGridCacheInfo.supportLevel > TS_DRAW_NINEGRID_DEFAULT) {
cacheSize += CH_CalculateCacheSize(pddShm->sbc.drawNineGridCacheInfo.cacheEntries);
}
#endif
#ifdef DRAW_GDIPLUS
// Calculate drawgdiplus cache size
if ((pddShm->sbc.drawGdiplusInfo.supportLevel > TS_DRAW_GDIPLUS_DEFAULT) &&
(pddShm->sbc.drawGdiplusInfo.GdipCacheLevel > TS_DRAW_GDIPLUS_CACHE_LEVEL_DEFAULT)) {
cacheSize += CH_CalculateCacheSize(pddShm->sbc.drawGdiplusInfo.GdipCacheEntries.GdipGraphicsCacheEntries);
cacheSize += CH_CalculateCacheSize(pddShm->sbc.drawGdiplusInfo.GdipCacheEntries.GdipObjectBrushCacheEntries);
cacheSize += CH_CalculateCacheSize(pddShm->sbc.drawGdiplusInfo.GdipCacheEntries.GdipObjectPenCacheEntries);
cacheSize += CH_CalculateCacheSize(pddShm->sbc.drawGdiplusInfo.GdipCacheEntries.GdipObjectImageCacheEntries);
cacheSize += CH_CalculateCacheSize(pddShm->sbc.drawGdiplusInfo.GdipCacheEntries.GdipObjectImageAttributesCacheEntries);
}
#endif
// Allocate memory for the cache
if (cacheSize)
sbcCacheData = (PCHCACHEDATA)EngAllocMem(0, cacheSize, DD_ALLOC_TAG);
DC_END_FN();
}
/****************************************************************************/
// SBC_Update: Allocate and initialize data structures according to the
// current negotiated capabilities.
/****************************************************************************/
void RDPCALL SBC_Update(SBC_BITMAP_CACHE_KEY_INFO *pKeyDatabase)
{
PCHCACHEDATA pCacheData;
DC_BEGIN_FN("SBC_Update");
SBCFreeCacheData();
#ifdef DC_HICOLOR
// Update the client bits per pel
sbcClientBitsPerPel = pddShm->sbc.clientBitsPerPel;
switch (sbcClientBitsPerPel)
{
case 24:
{
sbcCacheFlags = TS_CacheBitmapRev2_24BitsPerPel;
}
break;
case 15:
case 16:
{
sbcCacheFlags = TS_CacheBitmapRev2_16BitsPerPel;
}
break;
default:
{
sbcCacheFlags = TS_CacheBitmapRev2_8BitsPerPel;
}
break;
}
#endif
if (pddShm->sbc.fCachingEnabled) {
TRC_NRM((TB, "Alloc cache data"));
sbcEnabled = SBC_NO_CACHE_ENABLED;
SBCAllocCaches();
if (sbcCacheData) {
pCacheData = sbcCacheData;
// Create glyph and fragment cache(s).
sbcEnabled |= SBCAllocGlyphCache(&pCacheData);
// Create bitmap cache(s), work bitmaps, and color table cache.
sbcEnabled |= SBCAllocBitmapCache(&pCacheData);
// We expect the key database to have come to us by the time we get
// here.
if (sbcEnabled & SBC_BITMAP_CACHE_ENABLED) {
if (pKeyDatabase != NULL)
SBCProcessBitmapKeyDatabase(pKeyDatabase);
}
// Create brush cache.
sbcEnabled |= SBCAllocBrushCache(&pCacheData);
if (!(sbcEnabled & SBC_BRUSH_CACHE_ENABLED))
pddShm->sbc.caps.brushSupportLevel = TS_BRUSH_DEFAULT;
sbcEnabled |= SBCAllocOffscreenBitmapCache(&pCacheData);
if (!(sbcEnabled & SBC_OFFSCREEN_CACHE_ENABLED)) {
pddShm->sbc.offscreenCacheInfo.supportLevel =
TS_OFFSCREEN_DEFAULT;
}
#ifdef DRAW_NINEGRID
sbcEnabled |= SBCAllocDrawNineGridBitmapCache(&pCacheData);
if (!(sbcEnabled & SBC_DRAWNINEGRID_CACHE_ENABLED)) {
pddShm->sbc.drawNineGridCacheInfo.supportLevel =
TS_DRAW_NINEGRID_DEFAULT;
}
#endif
#ifdef DRAW_GDIPLUS
sbcEnabled |= SBCAllocDrawGdiplusCache(&pCacheData);
if (!(sbcEnabled & SBC_DRAWGDIPLUS_CACHE_ENABLED)) {
pddShm->sbc.drawGdiplusInfo.GdipCacheLevel = TS_DRAW_GDIPLUS_CACHE_LEVEL_DEFAULT;
}
#endif
}
else {
// Force brush cache disabled to prevent use of the caches.
pddShm->sbc.caps.brushSupportLevel = TS_BRUSH_DEFAULT;
// Force offscreen cache disabled
pddShm->sbc.offscreenCacheInfo.supportLevel =
TS_OFFSCREEN_DEFAULT;
#ifdef DRAW_NINEGRID
// Force drawstream cache disabled
pddShm->sbc.drawNineGridCacheInfo.supportLevel =
TS_DRAW_NINEGRID_DEFAULT;
#endif
}
}
else {
// Force brush cache disabled to prevent use of the caches.
pddShm->sbc.caps.brushSupportLevel = TS_BRUSH_DEFAULT;
// Force offscreen cache disabled
pddShm->sbc.offscreenCacheInfo.supportLevel =
TS_OFFSCREEN_DEFAULT;
#ifdef DRAW_NINEGRID
// Force drawstream cache disabled
pddShm->sbc.drawNineGridCacheInfo.supportLevel =
TS_DRAW_NINEGRID_DEFAULT;
#endif
}
pddShm->sbc.newCapsData = FALSE;
DC_END_FN();
}
/****************************************************************************/
// SBCFreeGlyphCacheData: Free glyph cache data buffers.
/****************************************************************************/
__inline void RDPCALL SBCFreeGlyphCacheData(void)
{
unsigned i;
PSBC_GLYPH_CACHE_INFO pGlyphCacheInfo;
PSBC_FRAG_CACHE_INFO pFragCacheInfo;
DC_BEGIN_FN("SBCFreeGlyphCacheData");
TRC_NRM((TB, "Free glyph cache data"));
// Free glyph cache(s).
for (i = 0; i < SBC_NUM_GLYPH_CACHES; i++) {
pGlyphCacheInfo = &(pddShm->sbc.glyphCacheInfo[i]);
if (pGlyphCacheInfo->cacheHandle != NULL) {
CH_ClearCache(pGlyphCacheInfo->cacheHandle);
pGlyphCacheInfo->cacheHandle = NULL;
pGlyphCacheInfo->cbCellSize = 0;
}
}
// Free fragment cache.
pFragCacheInfo = pddShm->sbc.fragCacheInfo;
if (pFragCacheInfo->cacheHandle != NULL) {
CH_ClearCache(pFragCacheInfo->cacheHandle);
pFragCacheInfo->cacheHandle = NULL;
pFragCacheInfo->cbCellSize = 0;
}
// Free the font cache info list
if (sbcFontCacheInfoList != 0) {
// Reset all the font cache info to 0.
for (i = 0; i < sbcFontCacheInfoListIndex; i++) {
if (sbcFontCacheInfoList[i] != 0) {
memset(sbcFontCacheInfoList[i], 0, sizeof(FONTCACHEINFO));
}
}
// Free the font cache info list
EngFreeMem(sbcFontCacheInfoList);
sbcFontCacheInfoList = 0;
sbcFontCacheInfoListSize = 0;
sbcFontCacheInfoListIndex = 0;
}
sbcEnabled &= ~SBC_GLYPH_CACHE_ENABLED;
DC_END_FN();
}
/****************************************************************************/
/* Name: SBCFreeBrushCacheData */
/* */
/* Purpose: Free brush cache data buffers. */
/****************************************************************************/
void RDPCALL SBCFreeBrushCacheData(void)
{
DC_BEGIN_FN("SBCFreeBrushCacheData");
TRC_NRM((TB, "Free brush cache data"));
/************************************************************************/
/* Free brush cache */
/************************************************************************/
if (sbcSmallBrushCacheHandle != 0)
{
CH_ClearCache(sbcSmallBrushCacheHandle);
sbcSmallBrushCacheHandle = 0;
}
if (sbcLargeBrushCacheHandle != 0)
{
CH_ClearCache(sbcLargeBrushCacheHandle);
sbcLargeBrushCacheHandle = 0;
}
sbcEnabled &= ~SBC_BRUSH_CACHE_ENABLED;
DC_END_FN();
}
/****************************************************************************/
// SBCFreeOffscreenBitmapCacheData
/****************************************************************************/
void RDPCALL SBCFreeOffscreenBitmapCacheData(void)
{
DC_BEGIN_FN("SBCFreeOffscreenBitmapCacheData");
TRC_NRM((TB, "Free offscreen Bitmap cache data"));
/************************************************************************/
/* Free Offscreen cache */
/************************************************************************/
if (pddShm->sbc.offscreenCacheInfo.supportLevel > TS_OFFSCREEN_DEFAULT)
{
CH_ClearCache(sbcOffscreenBitmapCacheHandle);
}
sbcOffscreenBitmapCacheHandle = 0;
// Free the offscreen bitmap delete list
if (sbcOffscrBitmapsDelList != 0) {
EngFreeMem(sbcOffscrBitmapsDelList);
sbcOffscrBitmapsDelList = 0;
sbcNumOffscrBitmapsToDelete = 0;
sbcOffscrBitmapsToDeleteSize = 0;
}
sbcEnabled &= ~SBC_OFFSCREEN_CACHE_ENABLED;
DC_END_FN();
}
#ifdef DRAW_NINEGRID
/****************************************************************************/
// SBCFreeDrawNineGridBitmapCacheData
/****************************************************************************/
void RDPCALL SBCFreeDrawNineGridBitmapCacheData(void)
{
DC_BEGIN_FN("SBCFreeDrawNineGridBitmapCacheData");
TRC_NRM((TB, "Free drawsninegrid Bitmap cache data"));
/************************************************************************/
// Free DrawNineGrid cache
/************************************************************************/
if (pddShm->sbc.drawNineGridCacheInfo.supportLevel > TS_DRAW_NINEGRID_DEFAULT)
{
CH_ClearCache(sbcDrawNineGridBitmapCacheHandle);
}
sbcDrawNineGridBitmapCacheHandle = 0;
sbcEnabled &= ~SBC_DRAWNINEGRID_CACHE_ENABLED;
DC_END_FN();
}
#endif
#ifdef DRAW_GDIPLUS
/****************************************************************************/
// SBCFreeDrawGdiplusCacheData
/****************************************************************************/
void RDPCALL SBCFreeDrawGdiplusCacheData(void)
{
DC_BEGIN_FN("SBCFreeDrawGdiplusCacheData");
TRC_NRM((TB, "Free drawgdiplus cache data"));
/************************************************************************/
// Free DrawGdiplus cache
/************************************************************************/
if ((pddShm->sbc.drawGdiplusInfo.supportLevel > TS_DRAW_GDIPLUS_DEFAULT) &&
(pddShm->sbc.drawGdiplusInfo.GdipCacheLevel > TS_DRAW_GDIPLUS_CACHE_LEVEL_DEFAULT))
{
CH_ClearCache(sbcGdipGraphicsCacheHandle);
CH_ClearCache(sbcGdipObjectBrushCacheHandle);
CH_ClearCache(sbcGdipObjectPenCacheHandle);
CH_ClearCache(sbcGdipObjectImageCacheHandle);
CH_ClearCache(sbcGdipObjectImageAttributesCacheHandle);
EngFreeMem(sbcGdipObjectImageCacheSizeList);
}
sbcGdipGraphicsCacheHandle = 0;
sbcEnabled &= ~SBC_DRAWGDIPLUS_CACHE_ENABLED;
DC_END_FN();
}
#endif // DRAW_GDIPLUS
/****************************************************************************/
// SBCFreeBitmapCacheData: Free bitmap cache data buffers.
/****************************************************************************/
__inline void RDPCALL SBCFreeBitmapCacheData(void)
{
unsigned i;
PSBC_BITMAP_CACHE_INFO pBitmapCacheInfo;
DC_BEGIN_FN("SBCFreeBitmapCacheData");
TRC_NRM((TB, "Free bitmap cache data"));
// Free cell caches.
for (i = 0; i < pddShm->sbc.NumBitmapCaches; i++) {
pBitmapCacheInfo = &(pddShm->sbc.bitmapCacheInfo[i]);
// Destroy the work bitmap.
if (pBitmapCacheInfo->hWorkBitmap != NULL) {
// The bitmap has been created, so now destroy it. Despite its
// name, EngDeleteSurface is the correct function to do this.
if (EngDeleteSurface(pBitmapCacheInfo->hWorkBitmap))
{
TRC_NRM((TB, "Deleted work bitmap %d", i));
}
else
{
TRC_ERR((TB, "Failed to delete work bitmap %d", i));
}
pBitmapCacheInfo->hWorkBitmap = NULL;
}
if (pBitmapCacheInfo->cacheHandle != NULL) {
CH_ClearCache(pBitmapCacheInfo->cacheHandle);
pBitmapCacheInfo->cacheHandle = NULL;
}
if (pBitmapCacheInfo->waitingListHandle != NULL) {
CH_ClearCache(pBitmapCacheInfo->waitingListHandle);
pBitmapCacheInfo->waitingListHandle = NULL;
}
#ifdef DC_DEBUG
// Free the bitmap header buffer.
if (pBitmapCacheInfo->pExtraEntryInfo != NULL) {
EngFreeMem(pBitmapCacheInfo->pExtraEntryInfo);
pBitmapCacheInfo->pExtraEntryInfo = NULL;
}
#endif
}
if (pddShm->sbc.hFastPathCache != NULL) {
CH_ClearCache(pddShm->sbc.hFastPathCache);
pddShm->sbc.hFastPathCache = NULL;
}
// Free colortable cache.
if (sbcColorTableCacheHandle != NULL) {
CH_ClearCache(sbcColorTableCacheHandle);
sbcColorTableCacheHandle = NULL;
}
// Destroy the 4bpp to 8bpp translation buffer, if present.
if (sbcXlateBuf != NULL) {
EngFreeMem(sbcXlateBuf);
sbcXlateBuf = NULL;
}
sbcEnabled &= ~SBC_BITMAP_CACHE_ENABLED;
DC_END_FN();
}
/****************************************************************************/
// SBCFreeCacheData: Free cache data buffers.
/****************************************************************************/
void RDPCALL SBCFreeCacheData(void)
{
DC_BEGIN_FN("SBCFreeCacheData");
TRC_NRM((TB, "Free cache data"));
if (sbcEnabled != SBC_NO_CACHE_ENABLED) {
// Free glyph and fragment caches.
if (sbcEnabled & SBC_GLYPH_CACHE_ENABLED)
SBCFreeGlyphCacheData();
// Free bitmap cache(s) and color table cache.
if (sbcEnabled & SBC_BITMAP_CACHE_ENABLED)
SBCFreeBitmapCacheData();
// Free brush caches.
if (sbcEnabled & SBC_BRUSH_CACHE_ENABLED) {
SBCFreeBrushCacheData();
}
// Free offscreen cache
if (sbcEnabled & SBC_OFFSCREEN_CACHE_ENABLED) {
SBCFreeOffscreenBitmapCacheData();
}
#ifdef DRAW_NINEGRID
// Free drawstream cache
if (sbcEnabled & SBC_DRAWNINEGRID_CACHE_ENABLED) {
SBCFreeDrawNineGridBitmapCacheData();
}
#endif
#ifdef DRAW_GDIPLUS
// Free drawgdiplus cache
if (sbcEnabled & SBC_DRAWGDIPLUS_CACHE_ENABLED) {
SBCFreeDrawGdiplusCacheData();
}
#endif
if (sbcCacheData) {
EngFreeMem(sbcCacheData);
sbcCacheData = NULL;
}
TRC_ASSERT((sbcEnabled == SBC_NO_CACHE_ENABLED),
(TB, "sbcEnabled should be disabled: %lx", sbcEnabled));
}
DC_END_FN();
}
/****************************************************************************/
// SBC_DDSync
//
// Performs a server-initiated sync, which occurs during the client connection
// sequence after the client responds with a ConfirmActivePDU, the persistent
// bitmap keys, and the font list PDUs. In RDP 4.0 a server-side sync would
// have reset all the caches. In this version we have to be more careful since
// we absolutely do not want to lose any of the current bitmap cache
// information, which includes persistent as well as new keys added since
// connection time.
//
// bMustSync is currently used by DrvShadowConnect() only
/****************************************************************************/
void RDPCALL SBC_DDSync(BOOLEAN bMustSync)
{
unsigned i;
DC_BEGIN_FN("SBC_DDSync");
if ((sbcEnabled != SBC_NO_CACHE_ENABLED) && bMustSync) {
TRC_ALT((TB, "Sync: resetting caches"));
// Reset the glyph and fragment caches.
if (sbcEnabled & SBC_GLYPH_CACHE_ENABLED) {
for (i = 0; i < SBC_NUM_GLYPH_CACHES; i++) {
if (pddShm->sbc.glyphCacheInfo[i].cacheHandle != NULL)
CH_ClearCache(pddShm->sbc.glyphCacheInfo[i].cacheHandle);
}
TRC_NRM((TB, "Sync: reset glyph info caches"));
if (pddShm->sbc.fragCacheInfo[0].cacheHandle != NULL) {
CH_ClearCache(pddShm->sbc.fragCacheInfo[0].cacheHandle);
TRC_NRM((TB, "Sync: reset glyph fragment cache"));
}
}
// Reset the brush caches.
if (sbcEnabled & SBC_BRUSH_CACHE_ENABLED)
{
if (sbcSmallBrushCacheHandle) {
TRC_NRM((TB, "Sync: reset small brush cache"));
CH_ClearCache(sbcSmallBrushCacheHandle);
}
if (sbcLargeBrushCacheHandle) {
TRC_NRM((TB, "Sync: reset large brush cache"));
CH_ClearCache(sbcLargeBrushCacheHandle);
}
}
// Reset the bitmap, fastpath, and color table caches.
if (sbcEnabled & SBC_BITMAP_CACHE_ENABLED) {
for (i = 0; i < pddShm->sbc.NumBitmapCaches; i++)
if (pddShm->sbc.bitmapCacheInfo[i].cacheHandle != NULL) {
TRC_NRM((TB, "Sync: reset bitmap cache[%ld]", i));
CH_ClearCache(pddShm->sbc.bitmapCacheInfo[i].cacheHandle);
}
if (pddShm->sbc.hFastPathCache != NULL) {
TRC_NRM((TB, "Sync: reset fast path bitmap"));
CH_ClearCache(pddShm->sbc.hFastPathCache);
}
// Reset the color table cache.
if (sbcColorTableCacheHandle != NULL) {
CH_ClearCache(sbcColorTableCacheHandle);
TRC_NRM((TB, "Sync: reset color table cache"));
}
}
// Pretend that the palette has changed, so we send a color table
// before our next MemBlt.
SBC_PaletteChanged();
}
else {
TRC_NRM((TB, "Nothing to do sbcEnabled(%lx), bMustSync(%ld)",
sbcEnabled, bMustSync));
}
// Reset the sync flag.
pddShm->sbc.syncRequired = FALSE;
DC_END_FN();
}
/****************************************************************************/
// SBCSelectGlyphCache: Decides which cache a given max font glyph size
// should go in.
//
// Returns: TRUE if the glyph size can be cached
// *pCache is updated with the index of the selected cache
//
// FALSE if the glyph size cannot be cached
// *pCache is -1
//
// Params: cbSize - size in bytes of the data to be cached
//
// pCache - pointer to variable that receives the cache index
// to use
/****************************************************************************/
BOOLEAN RDPCALL SBCSelectGlyphCache(unsigned cbSize, PINT32 pCache)
{
int i;
INT32 cacheId;
BOOLEAN rc;
unsigned cbCellSize;
unsigned cbUseCount;
DC_BEGIN_FN("SBCSelectGlyphCache");
*pCache = -1;
cbUseCount = 0;
cbCellSize = 65535;
for (i = 0; i < SBC_NUM_GLYPH_CACHES; i++) {
if (pddShm->sbc.glyphCacheInfo[i].cbCellSize >= cbSize) {
if (pddShm->sbc.glyphCacheInfo[i].cbCellSize < cbCellSize) {
*pCache = i;
cbCellSize = pddShm->sbc.glyphCacheInfo[i].cbCellSize;
cbUseCount = pddShm->sbc.glyphCacheInfo[i].cbUseCount;
}
else if (pddShm->sbc.glyphCacheInfo[i].cbCellSize == cbCellSize) {
if (pddShm->sbc.glyphCacheInfo[i].cbUseCount <= cbUseCount) {
*pCache = i;
cbCellSize = pddShm->sbc.glyphCacheInfo[i].cbCellSize;
cbUseCount = pddShm->sbc.glyphCacheInfo[i].cbUseCount;
}
}
}
}
if (*pCache != -1) {
rc = TRUE;
}
else {
TRC_ALT((TB, "Failed to find cache for cbSize(%u)", cbSize));
rc = FALSE;
}
DC_END_FN();
return rc;
}
/****************************************************************************/
// SBCDDGetTickCount: Get a system tick count.
//
// Returns: The number of centi-seconds since the system was started.
// This number will wrap after approximately 497 days!
/****************************************************************************/
__inline UINT32 RDPCALL SBCDDGetTickCount(void)
{
LONGLONG perfTickCount;
/************************************************************************/
/* Get the number of system ticks since the system was started. */
/************************************************************************/
EngQueryPerformanceCounter(&perfTickCount);
/************************************************************************/
/* Now convert this into a number of centi-seconds. sbcPerfFrequency */
/* contains the number of system ticks per second. */
/************************************************************************/
return (UINT32)(perfTickCount & 0xFFFFFFFF);
}
/****************************************************************************/
// SBCBitmapCacheCallback
//
// Called whenever an entry is evicted from the bitmap cache.
//
// Params: hCache - cache handle
//
// event - the cache event that has occurred.
//
// iCacheEntry - index of the cache entry that the event is affecting
//
// pData - pointer to the cache data associated with the given
// cache entry
//
// UserDefined - user-supplied value from CH_CacheKey
/****************************************************************************/
BOOLEAN __fastcall SBCBitmapCacheCallback(
CHCACHEHANDLE hCache,
unsigned Event,
unsigned iCacheEntry,
void *UserDefined)
{
DC_BEGIN_FN("SBCBitmapCacheCallback");
if (Event == CH_EVT_ENTRYREMOVED) {
TRC_NRM((TB, "Cache entry removed hCache(%p) iCacheEntry(%u)",
hCache, iCacheEntry));
// Keep the fast path cache in sync by removing the
// corresponding fast path entry.
if (UserDefined != NULL) {
CH_SetNodeUserDefined((CHNODE *)UserDefined, NULL);
CH_RemoveCacheEntry(pddShm->sbc.hFastPathCache,
CH_GetCacheIndexFromNode((CHNODE *)UserDefined));
TRC_NRM((TB, "Remove fastpath entry %u",
CH_GetCacheIndexFromNode((CHNODE *)UserDefined)));
}
}
DC_END_FN();
return TRUE;
}
/****************************************************************************/
// SBCFastPathCacheCallback
//
// Called whenever an entry is evicted from the cache.
//
// Params: hCache - cache handle
//
// Event - the cache event that has occured
//
// iCacheEntry - index of the cache entry that the event is affecting
//
// UserDefined - value passed in when entry was placed in cache.
/****************************************************************************/
BOOLEAN __fastcall SBCFastPathCacheCallback(
CHCACHEHANDLE hCache,
unsigned Event,
unsigned iCacheEntry,
void *UserDefined)
{
DC_BEGIN_FN("SBCFastPathCacheCallback");
if (Event == CH_EVT_ENTRYREMOVED) {
TRC_NRM((TB, "Fastpath cache entry removed hCache(%p) "
"iCacheEntry(%u)", hCache, iCacheEntry));
if (UserDefined != NULL) {
// We are losing a fast-path cache entry. UserDefined is a
// pointer to the node in the main cache corresponding to this
// fast path entry. Update the main cache entry with a NULL
// UserDefined to indicate there is no longer an associated
// fast-path entry.
CH_SetNodeUserDefined((CHNODE *)UserDefined, NULL);
}
}
DC_END_FN();
return TRUE;
}
/****************************************************************************/
// SBCGlyphCallback
//
// Called whenever an entry is to be evicted from the cache.
//
// Params: hCache - cache handle
//
// Event - the cache event that has occured
//
// iCacheEntry - index of the cache entry that the event is affecting
//
// UserDefined - value passed in when entry was placed in cache.
/****************************************************************************/
BOOLEAN __fastcall SBCGlyphCallback(
CHCACHEHANDLE hCache,
unsigned event,
unsigned iCacheEntry,
void *UserDefined)
{
BOOLEAN rc;
unsigned i;
PGLYPHCONTEXT pglc;
DC_BEGIN_FN("SBCGlyphCallback");
rc = TRUE;
switch (event) {
/********************************************************************/
/* We are being asked if the given entry can be evicted from the */
/* cache. */
/********************************************************************/
case CH_EVT_QUERYREMOVEENTRY:
pglc = (PGLYPHCONTEXT)CH_GetCacheContext(hCache);
if (pglc != NULL && (UINT_PTR)UserDefined == pglc->cacheTag)
rc = FALSE;
break;
}
DC_END_FN();
return rc;
}
/****************************************************************************/
// SBCOffscreenCallback
//
// Called whenever an entry is to be evicted from the cache.
//
// Params: hCache - cache handle
//
// Event - the cache event that has occured
//
// iCacheEntry - index of the cache entry that the event is affecting
//
// UserDefined - value passed in when entry was placed in cache.
/****************************************************************************/
BOOLEAN __fastcall SBCOffscreenCallback(
CHCACHEHANDLE hCache,
unsigned event,
unsigned iCacheEntry,
void *UserDefined)
{
BOOLEAN rc;
unsigned bitmapSize;
PGLYPHCONTEXT pglc;
DC_BEGIN_FN("SBCOffscreenCallback");
if (event == CH_EVT_ENTRYREMOVED) {
TRC_NRM((TB, "Offscreen cache entry removed hCache(%p) "
"iCacheEntry(%u)", hCache, iCacheEntry));
if (UserDefined != NULL) {
// We are losing an offscreen cache entry. UserDefined is a
// handle to the offscreen bitmap that's going to be evicted.
// We need to set the flag to noOffscreen for this bitmap
((PDD_DSURF)UserDefined)->flags |= DD_NO_OFFSCREEN;
// Get the bitmap size
// The assumption here is that iFormat is > 1BPP, i << iFormat
// gives the actual bits per pel. bitmapSize is in bytes.
if (((PDD_DSURF)UserDefined)->iBitmapFormat < 5) {
bitmapSize = ((PDD_DSURF)UserDefined)->sizl.cx *
((PDD_DSURF)UserDefined)->sizl.cy *
(1 << ((PDD_DSURF)UserDefined)->iBitmapFormat) / 8;
}
else if (((PDD_DSURF)UserDefined)->iBitmapFormat == 5) {
bitmapSize = ((PDD_DSURF)UserDefined)->sizl.cx *
((PDD_DSURF)UserDefined)->sizl.cy * 24 / 8;
}
else {
bitmapSize = ((PDD_DSURF)UserDefined)->sizl.cx *
((PDD_DSURF)UserDefined)->sizl.cy * 32 / 8;
}
// Current cache size
oeCurrentOffscreenCacheSize -= bitmapSize;
// Add this bitmap to the offscreen bitmap delete list
sbcOffscrBitmapsDelList[sbcNumOffscrBitmapsToDelete].bitmapId = iCacheEntry;
sbcOffscrBitmapsDelList[sbcNumOffscrBitmapsToDelete].bitmapSize = bitmapSize;
// Update the delete list data
sbcNumOffscrBitmapsToDelete++;
sbcOffscrBitmapsToDeleteSize += bitmapSize;
}
}
DC_END_FN();
return TRUE;
}
BOOLEAN RDPCALL SBC_CopyToWorkBitmap(
SURFOBJ *pWorkSurf,
PMEMBLT_ORDER_EXTRA_INFO pMemBltInfo,
unsigned cxSubBitmapWidth,
unsigned cySubBitmapHeight,
PPOINTL ptileOrigin,
RECTL *pDestRect)
{
BOOLEAN rc = FALSE;
RECTL destRectl;
unsigned yLastSrcRow;
DC_BEGIN_FN("SBC_CopyToWorkBitmap");
// Do the Blt to our work bitmap to perform any color/format
// conversions to get to screen format.
//
// We fiddle with the coords so that the data we want begins at
// the first byte of the work bitmap (which is the BOTTOM, as the
// bitmap is stored in bottom-up format).
//
// Note that destRectl is in exclusive coords.
destRectl.top = pMemBltInfo->TileSize - cySubBitmapHeight;
destRectl.left = 0;
destRectl.right = cxSubBitmapWidth;
destRectl.bottom = pMemBltInfo->TileSize;
// Clip the operation so that EngBitBlt does not try to copy any
// data from outside the source bitmap (it crashes if you try it!).
TRC_ASSERT((ptileOrigin->y <
pMemBltInfo->pSource->sizlBitmap.cy),
(TB, "Invalid tileOrigin.y(%d) sizlBitmap.cy(%d)",
ptileOrigin->y, pMemBltInfo->pSource->sizlBitmap.cy));
yLastSrcRow = ptileOrigin->y + (cySubBitmapHeight - 1);
if ((int)yLastSrcRow > (pMemBltInfo->pSource->sizlBitmap.cy - 1)) {
destRectl.bottom -= ((int)yLastSrcRow -
(pMemBltInfo->pSource->sizlBitmap.cy - 1));
TRC_ALT((TB, "Clip source from (%d) to (%d)",
cySubBitmapHeight, destRectl.bottom));
}
TRC_NRM((TB, "Blt to work bitmap from src point (%d,%d)",
ptileOrigin->x, ptileOrigin->y));
// Reset the work bitmap bits that we will be using if the copied
// data will not completely fill the area that we are going to
// cache (there may be some empty space to the right of the bitmap).
// This ensures that every time a bitmap is cached it has the
// same (zero) pad bytes and will match previously cached entries.
// It also aids compression (if enabled).
if ((destRectl.right - destRectl.left) < (int)pMemBltInfo->TileSize) {
unsigned cbResetBytes;
// The lDelta field in the SURFOBJ is negative because the
// bitmap is a "bottom-up" DIB.
cbResetBytes = (unsigned)((-pWorkSurf->lDelta) *
(destRectl.bottom - destRectl.top));
TRC_NRM((TB, "Reset %u bytes in work bitmap", cbResetBytes));
TRC_ASSERT((cbResetBytes <= pWorkSurf->cjBits),
(TB, "cbResetBytes(%u) too big (> %u) lDelta(%d)",
cbResetBytes, pWorkSurf->cjBits, pWorkSurf->lDelta));
memset(pWorkSurf->pvBits, 0, cbResetBytes);
}
TRC_ASSERT(((destRectl.left >= 0) &&
(destRectl.top >= 0) &&
(destRectl.right <= pWorkSurf->sizlBitmap.cx) &&
(destRectl.bottom <= pWorkSurf->sizlBitmap.cy)),
(TB, "destRect(%d, %d, %d, %d) exceeds bitmap(%d, %d)",
destRectl.left, destRectl.top, destRectl.right,
destRectl.bottom, pWorkSurf->sizlBitmap.cx,
pWorkSurf->sizlBitmap.cy));
// Now we have to fill in the backdrop bits for delta RLE bitmaps.
// We just grab screen bits from the screen bitmap to fill in the
// extents of the incoming bitmap.
if (pMemBltInfo->bDeltaRLE) {
POINTL ScrOrigin;
ScrOrigin.x = pDestRect->left;
ScrOrigin.y = pDestRect->top;
// Need to adjust the coordinates
if (ScrOrigin.y < 0) {
destRectl.top += (0 - ScrOrigin.y);
ScrOrigin.y = 0;
}
destRectl.bottom = min(destRectl.bottom,
(pMemBltInfo->pDest->sizlBitmap.cy -
ScrOrigin.y + destRectl.top));
// SRCCOPY screen to work bitmap. Note we use no XlateObj since
// the color schemes should be the same.
if (EngCopyBits(pWorkSurf, pMemBltInfo->pDest, NULL, NULL,
&destRectl, &ScrOrigin)) {
TRC_NRM((TB,"Blt screen->tile for RLE delta backdrop, "
"scr src=(%d,%d)", pDestRect->left,
pDestRect->top));
}
else {
TRC_ERR((TB,"Failed to blt screen data for RLE delta"));
DC_QUIT;
}
}
// SRCCOPY the final bits to the work bitmap.
if (!EngCopyBits(pWorkSurf, pMemBltInfo->pSource, NULL,
pMemBltInfo->pXlateObj, &destRectl, ptileOrigin)) {
TRC_ERR((TB, "Failed to Blt to work bitmap"));
DC_QUIT;
}
TRC_DBG((TB, "Completed CopyBits"));
rc = TRUE;
DC_EXIT_POINT:
DC_END_FN();
return rc;
}
/****************************************************************************/
// SBC_CacheBitmapTile
//
// Caches the tiled bitmap data for the provided blt info. Returns: TRUE if
// the data is already cached, or successfully cached and a Cache Bitmap order
// sent. SrcRect and DestRect are in exclusive coordinates. Returns FALSE
// if the Cache Bitmap order allocation fails.
/****************************************************************************/
BOOLEAN RDPCALL SBC_CacheBitmapTile(
PDD_PDEV ppdev,
PMEMBLT_ORDER_EXTRA_INFO pMemBltInfo,
RECTL *pSrcRect,
RECTL *pDestRect)
{
BOOLEAN rc = FALSE;
BOOLEAN fSearchFastPath;
BOOLEAN fFastPathMatch;
POINTL tileOrigin;
unsigned cxSubBitmapWidth, cySubBitmapHeight;
unsigned fastPathIndex;
SURFOBJ *pWorkSurf = NULL;
void *UserDefined;
CHDataKeyContext CHContext;
DC_BEGIN_FN("SBC_CacheBitmapTile");
pddCacheStats[BITMAP].CacheReads++;
TRC_NRM((TB, "Request to cache MemBlt (%d, %d), %d x %d -> (%d, %d), "
"src %p", pSrcRect->left, pSrcRect->top,
pSrcRect->right - pSrcRect->left,
pSrcRect->bottom - pSrcRect->top,
pDestRect->left, pDestRect->top,
pMemBltInfo->pSource->hsurf));
TRC_NRM((TB, "bmpWidth(%u) bmpHeight(%u) TileSize(%u)",
pMemBltInfo->pSource->sizlBitmap.cx,
pMemBltInfo->pSource->sizlBitmap.cy,
pMemBltInfo->TileSize));
// In stress, we have seen cases where fCachingEnabled is NULL when called
// in this code path from OEEncodeMemBlt
if (!pddShm->sbc.fCachingEnabled) {
DC_QUIT;
}
// Calculate the tile origin within the source bitmap coordinates and
// the size of the remaining bitmap. Origin is rounded down to the
// nearest tile. Actual size of bitmap to cache may be smaller than
// tile size if the tile runs off the right/bottom of the bitmap.
// Note that since TileSize is a power of 2, we can accelerate the
// modulo operation.
tileOrigin.x = pSrcRect->left - (pSrcRect->left &
(pMemBltInfo->TileSize - 1));
tileOrigin.y = pSrcRect->top - (pSrcRect->top &
(pMemBltInfo->TileSize - 1));
// Actual size of bitmap to cache may be smaller than tile size if the
// tile runs off the right/bottom of the bitmap. To see why this
// calculation is correct, realize that (bmpWidth - tileOrigin.x) is
// the remaining width of the bitmap after the start of this tile.
cxSubBitmapWidth = min(pMemBltInfo->TileSize,
(unsigned)(pMemBltInfo->pSource->sizlBitmap.cx - tileOrigin.x));
cySubBitmapHeight = min(pMemBltInfo->TileSize,
(unsigned)(pMemBltInfo->pSource->sizlBitmap.cy - tileOrigin.y));
// We need not search the fast-path cache if we've forced fastpath off.
fSearchFastPath = !pMemBltInfo->bNoFastPathCaching;
fFastPathMatch = FALSE;
// The BMF_DONTCACHE flag indicates that the source surface is an
// application-controlled DIB. The iUniq flag can therefore not be
// used to determine if/when the bitmap is updated, and we
// cannot use fastpathing to handle this surface.
if (pMemBltInfo->pSource->iType == STYPE_BITMAP &&
pMemBltInfo->pSource->fjBitmap & BMF_DONTCACHE) {
TRC_NRM((TB, "Source hsurf(%p) has BMF_DONTCACHE set",
pMemBltInfo->pSource->hsurf));
fSearchFastPath = FALSE;
}
if (fSearchFastPath) {
SBC_FAST_PATH_INFO fastPathInfo;
fastPathInfo.hsurf = pMemBltInfo->pSource->hsurf;
fastPathInfo.iUniq = pMemBltInfo->pSource->iUniq;
fastPathInfo.iDeviceUniq = pMemBltInfo->iDeviceUniq;
fastPathInfo.pXlateObj = pMemBltInfo->pXlateObj;
fastPathInfo.iUniqXlate = ((pMemBltInfo->pXlateObj != NULL) ?
pMemBltInfo->pXlateObj->iUniq : 0);
fastPathInfo.tileOrigin = tileOrigin;
fastPathInfo.TileSize = pMemBltInfo->TileSize;
fastPathInfo.bDeltaRLE = pMemBltInfo->bDeltaRLE;
CH_CreateKeyFromFirstData(&CHContext, &fastPathInfo,
sizeof(fastPathInfo));
if (CH_SearchCache(pddShm->sbc.hFastPathCache, CHContext.Key1,
CHContext.Key2, &UserDefined, &fastPathIndex)) {
CHCACHEHANDLE hCache;
// Found match in fast path. UserDefined is a pointer to the
// real CHNODE for the bitmap.
hCache = CH_GetCacheHandleFromNode((CHNODE *)UserDefined);
pMemBltInfo->CacheID = (unsigned)(UINT_PTR)CH_GetCacheContext(
hCache);
pMemBltInfo->CacheIndex = CH_GetCacheIndexFromNode(
(CHNODE *)UserDefined);
TRC_NRM((TB, "FP hit: cacheId(%u) cacheIndex(%u) FPIndex(%u)"
"hsurf(%p) iUniq(%u) pXlate(%p) iUniqX(%u) "
"tileOrigin.x(%d) tileOrigin.y(%d) "
"TileSize(%d), bDeltaRLE(%u)",
pMemBltInfo->CacheID, pMemBltInfo->CacheIndex,
fastPathIndex, fastPathInfo.hsurf,
fastPathInfo.iUniq, fastPathInfo.pXlateObj,
fastPathInfo.iUniqXlate,
fastPathInfo.tileOrigin.x, fastPathInfo.tileOrigin.y,
fastPathInfo.TileSize, fastPathInfo.bDeltaRLE));
fFastPathMatch = TRUE;
#ifdef DC_DEBUG
// Verify that the bits for this are identical to the real bits
pWorkSurf = EngLockSurface(pddShm->sbc.bitmapCacheInfo[
pMemBltInfo->TileID].hWorkBitmap);
if (pWorkSurf)
{
if (SBC_CopyToWorkBitmap(pWorkSurf, pMemBltInfo, cxSubBitmapWidth,
cySubBitmapHeight, &tileOrigin, pDestRect))
{
SBC_VerifyBitmapBits(pWorkSurf->pvBits,
TS_BYTES_IN_BITMAP(pMemBltInfo->TileSize, cySubBitmapHeight, sbcClientBitsPerPel),
pMemBltInfo->CacheID,
pMemBltInfo->CacheIndex);
}
EngUnlockSurface(pWorkSurf);
pWorkSurf = NULL;
}
#endif //DC_DEBUG
pddCacheStats[BITMAP].CacheHits++;
}
else {
TRC_NRM((TB, "FP miss: hsurf(%p) iUniq(%u) pXlate(%p) "
"iUniqX(%u) tileOrigin.x(%d) tileOrigin.y(%d) "
"TileSize(%d), bDeltaRLE(%u)",
fastPathInfo.hsurf, fastPathInfo.iUniq,
fastPathInfo.pXlateObj, fastPathInfo.iUniqXlate,
fastPathInfo.tileOrigin.x, fastPathInfo.tileOrigin.y,
fastPathInfo.TileSize, fastPathInfo.bDeltaRLE));
}
}
if (!fFastPathMatch) {
// We know how large a tile we have - we now have to Blt it into
// the work bitmap corresponding to the TileID.
// Lock the work bitmap to get a surface to pass to EngBitBlt.
pWorkSurf = EngLockSurface(pddShm->sbc.bitmapCacheInfo[
pMemBltInfo->TileID].hWorkBitmap);
if (pWorkSurf == NULL) {
TRC_ERR((TB, "Failed to lock work surface"));
DC_QUIT;
}
TRC_DBG((TB, "Locked surface"));
if (!SBC_CopyToWorkBitmap(pWorkSurf, pMemBltInfo, cxSubBitmapWidth,
cySubBitmapHeight, &tileOrigin, pDestRect))
{
TRC_ERR((TB, "Failed to copy bitmap to work surface"));
DC_QUIT;
}
// Cache the bits in the main cache, including sending a Cache
// Bitmap seondary order if need be.
if (!SBCCacheBits(ppdev, pWorkSurf->pvBits, cxSubBitmapWidth,
pMemBltInfo->TileSize, cySubBitmapHeight,
TS_BYTES_IN_BITMAP(pMemBltInfo->TileSize,
cySubBitmapHeight, sbcClientBitsPerPel),
pMemBltInfo->TileID,
#ifdef PERF_SPOILING
&pMemBltInfo->CacheID, &pMemBltInfo->CacheIndex,
pMemBltInfo->bIsPrimarySurface)) {
#else
&pMemBltInfo->CacheID, &pMemBltInfo->CacheIndex)) {
#endif
TRC_ERR((TB, "Failed to cache bits"));
DC_QUIT;
}
// If we could search for this bitmap in the fast-path cache, add
// it to the fast-path.
// However, skip this step if the bitmap is in the waiting list only
if (fSearchFastPath &&
pMemBltInfo->CacheIndex != BITMAPCACHE_WAITING_LIST_INDEX) {
CHNODE *pFastPathNode;
CHCACHEHANDLE hCache;
// Get the handle of the cache into which we just placed the
// bitmap.
hCache = pddShm->sbc.bitmapCacheInfo[pMemBltInfo->CacheID].
cacheHandle;
// Check if there is already a fast-path cache entry for this
// node. If so, we need to remove it before adding this new
// fast path entry. We maintain a one-to-one correspondence to
// save memory and time, and because the old fast-path entry is
// probably stale and won't be seen again.
//
// UserDefined in free builds is a pointer to the CHNODE in the
// real bitmap cache; otherwise it is an indirect pointer
// to the CHNODE contained in a blob of memory used to hold the
// bitmap data corresponding to the key to verify that the key
// generation algorithm is working okay.
pFastPathNode = (CHNODE *)CH_GetUserDefined(hCache,
pMemBltInfo->CacheIndex);
if (pFastPathNode != NULL)
CH_RemoveCacheEntry(pddShm->sbc.hFastPathCache,
CH_GetCacheIndexFromNode(pFastPathNode));
// Reuse the key created before for fast search.
// We do not care if we evict a fast-path cache entry
// when adding a new one -- the cache callbacks ensure that
// both sets of cache entries are updated with respect to each
// other.
fastPathIndex = CH_CacheKey(pddShm->sbc.hFastPathCache,
CHContext.Key1, CHContext.Key2,
(void *)CH_GetNodeFromCacheIndex(hCache,
pMemBltInfo->CacheIndex));
// Now change the UserDefined for the entry in the main cache.
// This allows us to remove the fast-path entry when main cache
// entry goes away.
CH_SetUserDefined(hCache, pMemBltInfo->CacheIndex,
CH_GetNodeFromCacheIndex(pddShm->sbc.hFastPathCache,
fastPathIndex));
TRC_NRM((TB, "FP add: cacheId(%u) cacheIndex(%u) FPIndex(%u)"
"hsurf(%p) iUniq(%u) pXlate(%p) iUniqX(%u) "
"tileOrigin.x(%d) tileOrigin.y(%d) TileSize(%d) "
"bDeltaRLE(%u)",
pMemBltInfo->CacheID, pMemBltInfo->CacheIndex,
fastPathIndex, pMemBltInfo->pSource->hsurf,
pMemBltInfo->pSource->iUniq, pMemBltInfo->pXlateObj,
((pMemBltInfo->pXlateObj != NULL) ?
pMemBltInfo->pXlateObj->iUniq : 0),
tileOrigin.x, tileOrigin.y,
pMemBltInfo->TileSize, pMemBltInfo->bDeltaRLE));
}
}
TRC_ASSERT((pMemBltInfo->CacheID < pddShm->sbc.NumBitmapCaches),
(TB, "Invalid bm cacheid %u (max %u)", pMemBltInfo->CacheID,
pddShm->sbc.NumBitmapCaches - 1));
TRC_NRM((TB, "cacheId(%u) cacheIndex(%u)", pMemBltInfo->CacheID,
pMemBltInfo->CacheIndex));
rc = TRUE;
DC_EXIT_POINT:
if (NULL != pWorkSurf)
{
EngUnlockSurface(pWorkSurf);
TRC_DBG((TB, "Unlocked surface"));
}
DC_END_FN();
return rc;
}
/****************************************************************************/
// SBCSelectBitmapCache
//
// Determines the destination cell for a tiled bitmap based on the size and
// the TileID. Since all bitmaps are derived from tiles, this function cannot
// fail -- at worst we have to use the same CacheID as the TileID.
/****************************************************************************/
__inline unsigned RDPCALL SBCSelectBitmapCache(
unsigned BitmapSize,
unsigned TileID)
{
unsigned CacheID;
DC_BEGIN_FN("SBCSelectBitmapCache");
// We scan from the smallest tile size to the TileID size to try to find
// the smallest possible size that will hold the bitmap.
for (CacheID = 0; CacheID < TileID; CacheID++) {
if (BitmapSize <= (unsigned)SBC_CellSizeFromCacheID(CacheID)) {
TRC_DBG((TB,"Selected CacheID %u for BitmapSize %u", CacheID,
BitmapSize));
break;
}
}
DC_END_FN();
return CacheID;
}
/****************************************************************************/
// SBCCacheBits: This function ensures that on return the supplied bitmap is
// in the bitmap cache. If the data is not already in the cache it is added
// (possibly evicting another entry).
//
// Returns: TRUE if the bits have been cached OK, FALSE otherwise
//
// Params: IN pOrder - A pointer to a BMC order.
// IN destBitsSize - The number of bytes available in
// pOrder to store the bitmap data.
// IN pDIBits - A pointer to the bits to be cached.
// IN bitmapWidth - The "in use" width of the bitmap
// IN fixedBitmapWidth - The actual width of the bitmap
// IN bitmapHeight - The height of the bitmap
// IN numBytes - The number of bytes in the bitmap.
// OUT pCache - The cache that we put the bits into.
// OUT pCacheIndex - The cache index within *pCache at
// which we cached the data.
/****************************************************************************/
// Encode a value in one or two bytes. The high bit of the first byte is 0 if
// there is only one byte, 1 if there are 2 (with the 7 low bits of the first
// byte being most significant).
__inline void Encode2ByteField(
BYTE *pEncode,
unsigned Val,
unsigned *pOrderSize)
{
if (Val <= 127) {
*pEncode = (BYTE)Val;
(*pOrderSize)++;
}
else {
*pEncode = (BYTE)(((Val & 0x7F00) >> 8) | 0x80);
*(pEncode + 1) = (BYTE)(Val & 0x00FF);
(*pOrderSize) += 2;
}
}
// Encode a value in up to 4 bytes. The high 2 bits of the first byte indicate
// the length of the encoding -- 00 is 1 byte, 01 is 2 bytes, 10 is 3 bytes,
// 11 is 4 bytes. The bytes are encoded with the most significant bits in the
// low 6 bits of the first byte, the least signifiant bits in the last byte.
__inline void Encode4ByteField(
BYTE *pEncode,
unsigned Val,
unsigned *pOrderSize)
{
if (Val <= 0x3F) {
*pEncode = (BYTE)Val;
(*pOrderSize)++;
}
else if (Val <= 0x3FFF) {
*pEncode = (BYTE)(((Val & 0x3F00) >> 8) | 0x40);
*(pEncode + 1) = (BYTE)(Val & 0x00FF);
(*pOrderSize) += 2;
}
else if (Val <= 0x3FFFFF) {
*pEncode = (BYTE)(((Val & 0x3F0000) >> 16) | 0x80);
*(pEncode + 1) = (BYTE)((Val & 0x00FF00) >> 8);
*(pEncode + 2) = (BYTE)(Val & 0x0000FF);
(*pOrderSize) += 3;
}
else {
*pEncode = (BYTE)(((Val & 0x3F000000) >> 24) | 0xC0);
*(pEncode + 1) = (BYTE)((Val & 0x00FF0000) >> 16);
*(pEncode + 2) = (BYTE)((Val & 0x0000FF00) >> 8);
*(pEncode + 3) = (BYTE)(Val & 0x000000FF);
(*pOrderSize) += 4;
}
}
#ifdef DC_DEBUG
BOOL SBC_VerifyBitmapBits(PBYTE pBitmapData, unsigned cbBitmapSize, UINT iCacheID, UINT iCacheIndex)
{
BOOL fRetVal = TRUE;
SBC_BITMAP_CACHE_EXTRA_INFO *pBitmapHdr;
unsigned BitmapHdrSize;
BYTE *pStoredBitmapData;
DC_BEGIN_FN("SBC_VerifyBitmapBits");
// In debug builds we look for a collision after checking the key
// and checksum, by comparing the bitmap bits.
BitmapHdrSize = sizeof(SBC_BITMAP_CACHE_EXTRA_INFO) +
SBC_CellSizeFromCacheID(iCacheID);
if (pddShm->sbc.bitmapCacheInfo[iCacheID].pExtraEntryInfo != NULL) {
pBitmapHdr = (SBC_BITMAP_CACHE_EXTRA_INFO *)(pddShm->sbc.
bitmapCacheInfo[iCacheID].pExtraEntryInfo +
BitmapHdrSize * iCacheIndex);
pStoredBitmapData = (BYTE *)pBitmapHdr +
sizeof(SBC_BITMAP_CACHE_EXTRA_INFO);
if (pBitmapHdr->DataSize != 0) {
TRC_NRM((TB,"Hit non-persistent cell entry, cache=%d, "
"index=%d", iCacheID, iCacheIndex));
if (pBitmapHdr->DataSize != cbBitmapSize)
{
TRC_ERR((TB,"Size mismatch between stored and new bitmap "
"data! (stored=0x%X, new=0x%X)", pBitmapHdr->DataSize,
cbBitmapSize));
fRetVal = FALSE;
}
else
{
if (memcmp(pStoredBitmapData, pBitmapData, cbBitmapSize))
{
TRC_ERR((TB,"Key-data mismatch - pStoredData=%p, "
"pNewData=%p, size=0x%X", pStoredBitmapData,
pBitmapData, cbBitmapSize));
fRetVal = FALSE;
}
}
}
else {
TRC_NRM((TB,"Persistent cell bitmap entry hit, cache=%d, "
"index=%d", *pCacheID, *pCacheIndex));
}
}
DC_END_FN();
return fRetVal;
}
#endif //DC_DEBUG
BOOLEAN RDPCALL SBCCacheBits(
PDD_PDEV ppdev,
PBYTE pBitmapData,
unsigned bitmapWidth,
unsigned paddedBitmapWidth,
unsigned bitmapHeight,
unsigned cbBitmapSize,
unsigned TileID,
PUINT pCacheID,
#ifdef PERF_SPOILING
PUINT pCacheIndex,
BOOL bIsPrimarySurface)
#else
PUINT pCacheIndex)
#endif
{
BOOLEAN rc = TRUE;
BOOLEAN bOnWaitingList = FALSE;
unsigned compressedSize;
PSBC_BITMAP_CACHE_INFO pCacheInfo;
INT_ORDER *pOrder;
unsigned BitmapSpace;
unsigned OrderSize;
PTS_SECONDARY_ORDER_HEADER pHdr;
unsigned cbActualOrderSize;
unsigned waitingListCacheEntry;
BYTE *pRev2BitmapSizeField;
void *UserDefined, *UserDefined2;
CHDataKeyContext CHContext;
UINT32 ExtraKeyInfo[2];
#ifdef DC_DEBUG
SBC_BITMAP_CACHE_EXTRA_INFO *pBitmapHdr;
unsigned BitmapHdrSize;
BYTE *pStoredBitmapData;
#endif
DC_BEGIN_FN("SBCCacheBits");
// Select the cache based on the data size. Note that for 4bpp bitmaps
// the size is doubled because we split the colors into individual 8bpp
// bytes indexed on a 16-color palette.
#ifdef DC_HICOLOR
// The logic regarding 4bpp holds for high color as the supplied bitmap
// size already correctly takes into account higher color depths.
*pCacheID = SBCSelectBitmapCache(
(sbcClientBitsPerPel == 4 ?
(2 * cbBitmapSize) : cbBitmapSize),
TileID);
#else
*pCacheID = SBCSelectBitmapCache((sbcClientBitsPerPel == 8 ? cbBitmapSize :
(2 * cbBitmapSize)), TileID);
#endif
TRC_NRM((TB, "Selected cache %u", *pCacheID));
pCacheInfo = &(pddShm->sbc.bitmapCacheInfo[*pCacheID]);
// Generate a key for the bitmap data. Add in the width and height of the
// blt as extra keyed data, since we don't want to collide when
// displaying blts of different dimensions but the same number of bytes
// and same contents. Also add in the checksum gathered from the bitmap
// bits to decrease the fail rate.
CH_CreateKeyFromFirstData(&CHContext, pBitmapData, cbBitmapSize);
ExtraKeyInfo[0] = (paddedBitmapWidth << 16) | bitmapHeight;
ExtraKeyInfo[1] = CHContext.Checksum;
CH_CreateKeyFromNextData(&CHContext, ExtraKeyInfo, sizeof(ExtraKeyInfo));
// If the key is already present, and its extra checksum matches,
// no need to cache.
if (CH_SearchCache(pCacheInfo->cacheHandle, CHContext.Key1,
CHContext.Key2, &UserDefined, pCacheIndex)) {
TRC_NRM((TB, "Bitmap already cached %u:%u cx(%u) cy(%u)",
*pCacheID, *pCacheIndex, bitmapWidth, bitmapHeight));
pddCacheStats[BITMAP].CacheHits++;
#ifdef DC_DEBUG
SBC_VerifyBitmapBits(pBitmapData, cbBitmapSize, *pCacheID, *pCacheIndex);
#endif
DC_QUIT;
}
// The bitmap is not in the cache list, check if it's in the waiting list
// First check if the client supports waiting list cache
if (pddShm->sbc.fAllowCacheWaitingList) {
// The bitmap is in the waiting list, so cache it now, first remove
// it from the waiting list
if (CH_SearchCache(pCacheInfo->waitingListHandle, CHContext.Key1,
CHContext.Key2, &UserDefined2, &waitingListCacheEntry)) {
CH_RemoveCacheEntry(pCacheInfo->waitingListHandle, waitingListCacheEntry);
goto CacheBitmap;
}
else {
// The bitmap is not in the waiting list, put it in the waiting list
// don't cache for this round, if we see it again, then we'll cache it
waitingListCacheEntry = CH_CacheKey(pCacheInfo->waitingListHandle,
CHContext.Key1, CHContext.Key2, NULL);
*pCacheIndex = BITMAPCACHE_WAITING_LIST_INDEX;
#ifdef PERF_SPOILING
// We waitlisted this tile. We don't need to send it as
// cache order. We will try to send it as screen data.
if (bIsPrimarySurface) {
rc = FALSE;
DC_QUIT;
}
#endif
bOnWaitingList = TRUE;
}
}
else {
goto CacheBitmap;
}
CacheBitmap:
// Allocate an order in the order heap big enough to hold the entire
// tile. We will relinquish any extra space we don't use because of
// compression. Size is also dependent on the color depth of the client
// since for 4bpp we unpack the colors into 8 bits for the protocol.
#ifdef DC_HICOLOR
// Again, the logic holds for high color as the supplied bitmap size
// already correctly takes into account higher color depths.
BitmapSpace = cbBitmapSize * (sbcClientBitsPerPel == 4 ? 2 : 1);
TRC_DBG((TB, "Bitmap is %ux%u, size %u bytes",
paddedBitmapWidth, bitmapHeight, BitmapSpace));
#else
BitmapSpace = cbBitmapSize * (sbcClientBitsPerPel == 8 ? 1 : 2);
#endif
OrderSize = max(TS_CACHE_BITMAP_ORDER_REV2_MAX_SIZE,
(sizeof(TS_CACHE_BITMAP_ORDER) -
FIELDSIZE(TS_CACHE_BITMAP_ORDER, bitmapData))) +
BitmapSpace;
pOrder = OA_AllocOrderMem(ppdev, OrderSize);
if (pOrder != NULL) {
// We have to add the key to the cache. Note we use NULL for the
// UserDefined until we know the cache index to get the
// BITMAP_DATA_HEADER.
if (!bOnWaitingList) {
*pCacheIndex = CH_CacheKey(pCacheInfo->cacheHandle,
CHContext.Key1, CHContext.Key2, NULL);
#ifdef DC_DEBUG
// We need to store the bitmap data after the BITMAP_DATA_HEADER.
BitmapHdrSize = sizeof(SBC_BITMAP_CACHE_EXTRA_INFO) +
SBC_CellSizeFromCacheID(*pCacheID);
if (pddShm->sbc.bitmapCacheInfo[*pCacheID].pExtraEntryInfo != NULL) {
pBitmapHdr = (SBC_BITMAP_CACHE_EXTRA_INFO *)(pddShm->sbc.
bitmapCacheInfo[*pCacheID].pExtraEntryInfo +
BitmapHdrSize * *pCacheIndex);
pStoredBitmapData = (BYTE *)pBitmapHdr +
sizeof(SBC_BITMAP_CACHE_EXTRA_INFO);
pBitmapHdr->DataSize = cbBitmapSize;
memcpy(pStoredBitmapData, pBitmapData, cbBitmapSize);
}
#endif //DC_DEBUG
}
TRC_NRM((TB,"Creating new cache entry, cache=%d, index=%d\n",
*pCacheID, *pCacheIndex));
// Fill in cache bitmap order. Differentiate based on the
// order revision.
pHdr = (TS_SECONDARY_ORDER_HEADER *)pOrder->OrderData;
pHdr->orderHdr.controlFlags = TS_STANDARD | TS_SECONDARY;
// Fill in pHdr->orderType when we know it below.
if (pddShm->sbc.bUseRev2CacheBitmapOrder) {
TS_CACHE_BITMAP_ORDER_REV2_HEADER *pCacheOrderHdr;
// Revision 2 order.
pCacheOrderHdr = (TS_CACHE_BITMAP_ORDER_REV2_HEADER *)
pOrder->OrderData;
// Set up the CacheID and BitsPerPelID in header.extraFlags.
// If the client supports noBitmapCompression Header, we have to
// turn on the no-compression-header flag to indicate that
// this order doesn't contain the header. This is necessary in
// addition to capability negotiation because shadow can turn
// this cap off.
#ifdef DC_HICOLOR
if (!bOnWaitingList) {
pCacheOrderHdr->header.extraFlags = *pCacheID | sbcCacheFlags |
pddShm->bc.noBitmapCompressionHdr;
}
else {
pCacheOrderHdr->header.extraFlags = *pCacheID | sbcCacheFlags |
pddShm->bc.noBitmapCompressionHdr |
TS_CacheBitmapRev2_bNotCacheFlag;
}
#else
pCacheOrderHdr->header.extraFlags = *pCacheID |
TS_CacheBitmapRev2_8BitsPerPel |
pddShm->bc.noBitmapCompressionHdr;
#endif
// We'll write over the key values if the cache is tagged
// as non-persistent.
pCacheOrderHdr->Key1 = CHContext.Key1;
pCacheOrderHdr->Key2 = CHContext.Key2;
// Now add the variable-sized fields.
// Bitmap key.
if (pCacheInfo->Info.bSendBitmapKeys) {
cbActualOrderSize =
sizeof(TS_CACHE_BITMAP_ORDER_REV2_HEADER);
pCacheOrderHdr->header.extraFlags |=
TS_CacheBitmapRev2_bKeyPresent_Mask;
}
else {
cbActualOrderSize =
sizeof(TS_CACHE_BITMAP_ORDER_REV2_HEADER) -
2 * sizeof(UINT32);
}
// Real width of the bits in this tile.
Encode2ByteField((BYTE *)pCacheOrderHdr + cbActualOrderSize,
paddedBitmapWidth, &cbActualOrderSize);
// Height, if not same as width.
if (paddedBitmapWidth == bitmapHeight) {
pCacheOrderHdr->header.extraFlags |=
TS_CacheBitmapRev2_bHeightSameAsWidth_Mask;
}
else {
Encode2ByteField((BYTE *)pCacheOrderHdr + cbActualOrderSize,
bitmapHeight, &cbActualOrderSize);
}
// Bitmap size: Here we have to lose a bit of performance.
// We have not yet compressed the bitmap and so cannot determine
// size of this field (see Encode4ByteField() above). Since we
// know that the size is never bigger than 4K (64x64 tile), we
// can just set up to always encode a 2-byte size even if the
// compressed size is less than 128 (this can cause a bit of a
// wire performance hit).
//TODO: If we add tile sizes above 64x64 we will need to modify this logic to
// handle the potential 3-byte sizes.
pRev2BitmapSizeField = (BYTE *)pCacheOrderHdr + cbActualOrderSize;
cbActualOrderSize += 2;
//TODO: Not encoding the streaming bitmap size field here, needs to be added if
// bitmap streaming is enabled.
Encode2ByteField((BYTE *)pCacheOrderHdr + cbActualOrderSize,
*pCacheIndex, &cbActualOrderSize);
}
else {
PTS_CACHE_BITMAP_ORDER pCacheOrder;
// Revision 1 order.
pCacheOrder = (PTS_CACHE_BITMAP_ORDER)pOrder->OrderData;
// If the client supports noBitmapCompression Header, we have to
// turn on the no-compression-header flag to indicate that
// this order doesn't contain the header. This is necessary in
// addition to capability negotiation because shadow can turn
// this cap off
pCacheOrder->header.extraFlags = pddShm->bc.noBitmapCompressionHdr;
pCacheOrder->cacheId = (BYTE)*pCacheID;
pCacheOrder->pad1octet = 0;
pCacheOrder->bitmapWidth = (BYTE)paddedBitmapWidth;
pCacheOrder->bitmapHeight = (BYTE)bitmapHeight;
#ifdef DC_HICOLOR
pCacheOrder->bitmapBitsPerPel = (BYTE)sbcClientBitsPerPel;
#else
pCacheOrder->bitmapBitsPerPel = (BYTE)SBC_PROTOCOL_BPP;
#endif
// We fill in pCacheOrder->bitmapLength when we have it below.
pCacheOrder->cacheIndex = (UINT16)*pCacheIndex;
cbActualOrderSize = sizeof(TS_CACHE_BITMAP_ORDER) -
FIELDSIZE(TS_CACHE_BITMAP_ORDER, bitmapData);
}
#ifdef DC_HICOLOR
if (sbcClientBitsPerPel != 4)
#else
if (sbcClientBitsPerPel == 8)
#endif
{
compressedSize = cbBitmapSize;
}
else {
BYTE *pEnd, *pSrc, *pDst;
compressedSize = cbBitmapSize * 2;
// Expand the 4bpp packing into full bytes -- protocol is 8bpp
// and we need to have these bits before compressing.
pEnd = pBitmapData + cbBitmapSize;
pSrc = pBitmapData;
pDst = sbcXlateBuf;
while (pSrc < pEnd) {
*pDst = (*pSrc >> 4) & 0xF;
pDst++;
*pDst = *pSrc & 0xF;
pDst++;
pSrc++;
}
pBitmapData = sbcXlateBuf;
}
// Try to compress the bitmap data, or copy it if the
// compression will do no good.
#ifdef DC_HICOLOR
if (BC_CompressBitmap(pBitmapData,
pOrder->OrderData + cbActualOrderSize,
NULL,
compressedSize,
&compressedSize,
paddedBitmapWidth,
bitmapHeight,
sbcClientBitsPerPel))
#else
if (BC_CompressBitmap(pBitmapData, pOrder->OrderData +
cbActualOrderSize, compressedSize,
&compressedSize, paddedBitmapWidth, bitmapHeight))
#endif
{
TRC_NRM((TB, "Compressed to %u bytes", compressedSize));
if (pddShm->sbc.bUseRev2CacheBitmapOrder) {
pHdr->orderType = TS_CACHE_BITMAP_COMPRESSED_REV2;
// Encode 2 bytes for size within 4-byte encoding.
TRC_ASSERT((compressedSize <= 0x3FFF),
(TB,"compressedSize too large for 2 bytes!"));
*pRev2BitmapSizeField = (BYTE)(compressedSize >> 8) | 0x40;
*(pRev2BitmapSizeField + 1) = (BYTE)(compressedSize &
0x00FF);
}
else {
pHdr->orderType = TS_CACHE_BITMAP_COMPRESSED;
((PTS_CACHE_BITMAP_ORDER)pOrder->OrderData)->
bitmapLength = (UINT16)compressedSize;
}
}
else {
// Failed to compress bitmap data, so just copy it
// uncompressed.
TRC_NRM((TB, "Failed to compress %u bytes, copying",
compressedSize));
memcpy(pOrder->OrderData + cbActualOrderSize,
pBitmapData, compressedSize);
if (pddShm->sbc.bUseRev2CacheBitmapOrder) {
pHdr->orderType = TS_CACHE_BITMAP_UNCOMPRESSED_REV2;
// Encode 2 bytes for size within 4-byte encoding.
TRC_ASSERT((compressedSize <= 0x3FFF),
(TB,"compressedSize too large for 2 bytes!"));
*pRev2BitmapSizeField = (BYTE)(compressedSize >> 8) | 0x40;
*(pRev2BitmapSizeField + 1) = (BYTE)(compressedSize &
0x00FF);
}
else {
pHdr->orderType = TS_CACHE_BITMAP_UNCOMPRESSED;
((PTS_CACHE_BITMAP_ORDER)pOrder->OrderData)->
bitmapLength = (UINT16)compressedSize;
}
}
pHdr->orderLength = (UINT16)
TS_CALCULATE_SECONDARY_ORDER_ORDERLENGTH(
cbActualOrderSize + compressedSize);
// Return any extra space to the order heap.
OA_TruncateAllocatedOrder(pOrder, cbActualOrderSize +
compressedSize);
// Add the order.
OA_AppendToOrderList(pOrder);
INC_OUTCOUNTER(OUT_CACHEBITMAP);
ADD_OUTCOUNTER(OUT_CACHEBITMAP_BYTES, cbActualOrderSize +
compressedSize);
}
else {
TRC_ALT((TB, "Failed to alloc cache bitmap order size %d", OrderSize));
INC_OUTCOUNTER(OUT_CACHEBITMAP_FAILALLOC);
rc = FALSE;
}
DC_EXIT_POINT:
DC_END_FN();
return rc;
}
/****************************************************************************/
// SBC_SendCacheColorTableOrder
//
// Queues a color table order if the palette has
// changed since the last call to this function.
//
// Returns: TRUE if no action required, or color table successfully
// queued. FALSE otherwise.
//
// Params: pPDev - pointer to PDev
// pCacheIndex - pointer to variable that receives cache index
/****************************************************************************/
BOOLEAN RDPCALL SBC_SendCacheColorTableOrder(
PDD_PDEV pPDev,
unsigned *pCacheIndex)
{
int orderSize;
void *UserDefined;
CHDataKeyContext CHContext;
BOOLEAN rc = TRUE;
unsigned numColors;
unsigned i;
PINT_ORDER pOrder;
PTS_CACHE_COLOR_TABLE_ORDER pColorTableOrder;
DC_BEGIN_FN("SBC_SendCacheColorTableOrder");
// Currently only support 8bpp protocol.
TRC_ASSERT((pPDev->cProtocolBitsPerPel == SBC_PROTOCOL_BPP),
(TB, "Unexpected bpp: %u", pPDev->cProtocolBitsPerPel));
numColors = SBC_NUM_8BPP_COLORS;
// Check the boolean in our PDEV to see if the palette has changed
// since the last time we sent a color table order.
// In high color case, no color table is needed
if (!sbcPaletteChanged || (sbcClientBitsPerPel > 8)) {
*pCacheIndex = sbcCurrentColorTableCacheIndex;
DC_QUIT;
}
// If the key is already present (very often the case), no need to cache.
CH_CreateKeyFromFirstData(&CHContext, (BYTE *)(pPDev->Palette),
numColors * sizeof(PALETTEENTRY));
if (CH_SearchCache(sbcColorTableCacheHandle, CHContext.Key1,
CHContext.Key2, &UserDefined, pCacheIndex)) {
TRC_NRM((TB, "Color table matched cache entry %u", *pCacheIndex));
DC_QUIT;
}
// We have to add the key to the cache.
*pCacheIndex = CH_CacheKey(sbcColorTableCacheHandle, CHContext.Key1,
CHContext.Key2, NULL);
// The palette has changed and is not currently in the color table
// cache. Allocate order memory to queue a color table order. The
// order size depends on the bpp of our device. Note that the
// allocation can fail if the order buffer is full.
orderSize = sizeof(TS_CACHE_COLOR_TABLE_ORDER) -
FIELDSIZE(TS_CACHE_COLOR_TABLE_ORDER, colorTable) +
(numColors * sizeof(TS_COLOR_QUAD));
pOrder = OA_AllocOrderMem(pPDev, orderSize);
if (pOrder != NULL) {
TRC_DBG((TB, "Allocate %u bytes for color table order", orderSize));
// We've successfully allocated the order, so fill in the details.
pColorTableOrder = (PTS_CACHE_COLOR_TABLE_ORDER)pOrder->OrderData;
pColorTableOrder->header.orderHdr.controlFlags = TS_STANDARD |
TS_SECONDARY;
pColorTableOrder->header.orderLength = (USHORT)
TS_CALCULATE_SECONDARY_ORDER_ORDERLENGTH(orderSize);
pColorTableOrder->header.extraFlags = 0;
pColorTableOrder->header.orderType = TS_CACHE_COLOR_TABLE;
pColorTableOrder->cacheIndex = (BYTE)*pCacheIndex;
pColorTableOrder->numberColors = (UINT16)numColors;
// Unfortunately we can't just copy the palette from the PDEV into the
// color table order because the PDEV has an array of PALETTEENTRY
// structures which are RGBs whereas the order has an array of
// RGBQUADs which are BGRs...
for (i = 0; i < numColors; i++) {
pColorTableOrder->colorTable[i].blue = pPDev->Palette[i].peRed;
pColorTableOrder->colorTable[i].green = pPDev->Palette[i].peGreen;
pColorTableOrder->colorTable[i].red = pPDev->Palette[i].peBlue;
pColorTableOrder->colorTable[i].pad1octet = 0;
}
// Add the order.
OA_AppendToOrderList(pOrder);
INC_OUTCOUNTER(OUT_CACHECOLORTABLE);
ADD_OUTCOUNTER(OUT_CACHECOLORTABLE_BYTES, orderSize);
TRC_NRM((TB, "Added internal color table order, size %u", orderSize));
// Reset the flag which indicates that the palette needs to be sent.
sbcPaletteChanged = FALSE;
sbcCurrentColorTableCacheIndex = *pCacheIndex;
TRC_NRM((TB, "Added new color table at index(%u)", *pCacheIndex));
#ifdef DC_HICOLOR
TRC_ASSERT((sbcCurrentColorTableCacheIndex <
SBC_NUM_COLOR_TABLE_CACHE_ENTRIES),
(TB, "Invalid ColorTableIndex(%u)",
sbcCurrentColorTableCacheIndex));
#endif
}
else {
rc = FALSE;
TRC_ERR((TB, "Failed to allocate %d bytes for color table order",
orderSize));
}
DC_EXIT_POINT:
DC_END_FN();
return rc;
}
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