Leaked source code of windows server 2003
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4964 lines
193 KiB

/****************************************************************************/
// noeapi.c
//
// RDP Order Encoder functions
//
// Copyright (C) 1996-2000 Microsoft Corporation
/****************************************************************************/
#include <precmpdd.h>
#pragma hdrstop
#define TRC_FILE "noeapi"
#include <adcg.h>
#include <atrcapi.h>
#include <nshmapi.h>
#include <tsrvexp.h>
#include <nschdisp.h>
#include <noadisp.h>
#include <nsbcdisp.h>
#include <nprcount.h>
#include <noedisp.h>
#include <oe2.h>
#define DC_INCLUDE_DATA
#include <ndddata.c>
#include <noedata.c>
#include <nsbcddat.c>
#include <oe2data.c>
#undef DC_INCLUDE_DATA
#include <nbadisp.h>
#include <nbainl.h>
#include <noeinl.h>
#include <nsbcinl.h>
#include <nchdisp.h>
#include <tsgdiplusenums.h>
/****************************************************************************/
// OE_InitShm
//
// Alloc-time SHM init.
/****************************************************************************/
void OE_InitShm(void)
{
DC_BEGIN_FN("OE_InitShm");
memset(&pddShm->oe, 0, sizeof(OE_SHARED_DATA));
DC_END_FN();
}
/****************************************************************************/
// OE_Reset
//
// Reset oe components as necessary
/****************************************************************************/
void OE_Reset(void)
{
DC_BEGIN_FN("OE_Reset");
oeLastDstSurface = 0;
DC_END_FN();
}
/****************************************************************************/
// OE_Update
//
// Called when the share is reset on logon or reconnect.
// Sets new capabilities.
/****************************************************************************/
void RDPCALL OE_Update()
{
if (pddShm->oe.newCapsData) {
oeSendSolidPatternBrushOnly = pddShm->oe.sendSolidPatternBrushOnly;
oeColorIndexSupported = pddShm->oe.colorIndices;
// The share core has passed down a pointer to its copy of the order
// support array. We take a copy for the kernel here.
memcpy(&oeOrderSupported, pddShm->oe.orderSupported,
sizeof(oeOrderSupported));
pddShm->oe.newCapsData = FALSE;
}
DC_END_FN();
}
/****************************************************************************/
// OE_ClearOrderEncoding
//
// Called on a share state toggle to clear the order encoding states held
// in the DD data segment.
/****************************************************************************/
void OE_ClearOrderEncoding()
{
DC_BEGIN_FN("OE_ClearOrderEncoding");
memset(&PrevMemBlt, 0, sizeof(PrevMemBlt));
memset(&PrevMem3Blt, 0, sizeof(PrevMem3Blt));
memset(&PrevDstBlt, 0, sizeof(PrevDstBlt));
memset(&PrevMultiDstBlt, 0, sizeof(PrevMultiDstBlt));
memset(&PrevPatBlt, 0, sizeof(PrevPatBlt));
memset(&PrevMultiPatBlt, 0, sizeof(PrevMultiPatBlt));
memset(&PrevScrBlt, 0, sizeof(PrevScrBlt));
memset(&PrevMultiScrBlt, 0, sizeof(PrevMultiScrBlt));
memset(&PrevOpaqueRect, 0, sizeof(PrevOpaqueRect));
memset(&PrevMultiOpaqueRect, 0, sizeof(PrevMultiOpaqueRect));
memset(&PrevLineTo, 0, sizeof(PrevLineTo));
memset(&PrevPolyLine, 0, sizeof(PrevPolyLine));
memset(&PrevPolygonSC, 0, sizeof(PrevPolygonSC));
memset(&PrevPolygonCB, 0, sizeof(PrevPolygonCB));
memset(&PrevEllipseSC, 0, sizeof(PrevEllipseSC));
memset(&PrevEllipseCB, 0, sizeof(PrevEllipseCB));
memset(&PrevFastIndex, 0, sizeof(PrevFastIndex));
memset(&PrevFastGlyph, 0, sizeof(PrevFastGlyph));
memset(&PrevGlyphIndex, 0, sizeof(PrevGlyphIndex));
#ifdef DRAW_NINEGRID
memset(&PrevDrawNineGrid, 0, sizeof(PrevDrawNineGrid));
memset(&PrevMultiDrawNineGrid, 0, sizeof(PrevMultiDrawNineGrid));
#endif
DC_END_FN();
}
/****************************************************************************/
/* OE_SendGlyphs - Send text glyphs to the client */
/****************************************************************************/
BOOL RDPCALL OE_SendGlyphs(
SURFOBJ *pso,
STROBJ *pstro,
FONTOBJ *pfo,
OE_ENUMRECTS *pClipRects,
RECTL *prclOpaque,
BRUSHOBJ *pboFore,
BRUSHOBJ *pboOpaque,
POINTL *pptlOrg,
PFONTCACHEINFO pfci)
{
BOOL rc;
GLYPHCONTEXT glc;
POE_BRUSH_DATA pbdOpaque;
PDD_PDEV ppdev;
DC_BEGIN_FN("OE_SendGlyphs");
rc = FALSE;
// Rasterized fonts are bitmaps - others are PATHOBJ structures.
if (pfo->flFontType & RASTER_FONTTYPE) {
ppdev = (PDD_PDEV)pso->dhpdev;
pddCacheStats[GLYPH].CacheReads += pstro->cGlyphs;
// Make sure we don't exceed our max glyph_out capacity.
if (pstro->cGlyphs <= OE_GL_MAX_INDEX_ENTRIES) {
// The system can only handle 'simple' brushes.
if (OECheckBrushIsSimple(ppdev, pboOpaque, &pbdOpaque)) {
// Get the text fore color.
OEConvertColor(ppdev, &pbdOpaque->back,
pboFore->iSolidColor, NULL);
// Initialize our glyph context structure.
glc.fontId = pfci->fontId;
glc.cacheTag = oeTextOut++;
glc.nCacheHit = 0;
glc.nCacheIndex = 0;
glc.indexNextSend = 0;
glc.cbDataSize = 0;
glc.cbTotalDataSize = 0;
glc.cbBufferSize = 0;
// Cache all glyphs for this message .
if (OECacheGlyphs(pstro, pfo, pfci, &glc)) {
// Send all newly cached glyphs to the client.
// If this is single glyph and we support fast glyph order
// and the glyph data length can fit in one byte. We will
// send the glyph index and data in one order. Note we
// can bypass fragment caching in this case since we don't
// cache fragment of length less than 3 glyphs.
if (OE_SendAsOrder(TS_ENC_FAST_GLYPH_ORDER) &&
(pstro->cGlyphs == 1) && (glc.cbTotalDataSize +
sizeof(UINT16)) <= FIELDSIZE(VARIABLE_GLYPHBYTES,
glyphData)) {
rc = OESendGlyphAndIndexOrder(ppdev, pstro,
pClipRects, prclOpaque, pbdOpaque,
pfci, &glc);
}
else {
if (OESendGlyphs(pso, pstro, pfo, pfci, &glc)) {
// Send glyph index orders to the client.
rc = OESendIndexes(pso, pstro, pfo, pClipRects,
prclOpaque, pbdOpaque, pptlOrg, pfci,
&glc);
}
}
}
}
}
}
DC_END_FN();
return rc;
}
/****************************************************************************/
// DrvBitBlt - see NT DDK documentation.
/****************************************************************************/
BOOL RDPCALL DrvBitBlt(
SURFOBJ *psoTrg,
SURFOBJ *psoSrc,
SURFOBJ *psoMask,
CLIPOBJ *pco,
XLATEOBJ *pxlo,
RECTL *prclTrg,
POINTL *pptlSrc,
POINTL *pptlMask,
BRUSHOBJ *pbo,
POINTL *pptlBrush,
ROP4 rop4)
{
PDD_PDEV ppdev = (PDD_PDEV)psoTrg->dhpdev;
PDD_DSURF pdsurfTrg = NULL;
PDD_DSURF pdsurfSrc = NULL;
SURFOBJ *psoSrcArg = NULL;
SURFOBJ *psoTrgArg = NULL;
BOOL rc;
BYTE rop3;
RECTL bounds;
OE_ENUMRECTS ClipRects;
DC_BEGIN_FN("DrvBitBlt");
// Sometimes we're called after being disconnected.
if (ddConnected && pddShm != NULL) {
psoSrcArg = psoSrc;
psoTrgArg = psoTrg;
psoTrg = OEGetSurfObjBitmap(psoTrg, &pdsurfTrg);
if (psoSrc != NULL)
psoSrc = OEGetSurfObjBitmap(psoSrc, &pdsurfSrc);
DD_UPD_STATE(DD_BITBLT);
INC_OUTCOUNTER(OUT_BITBLT_ALL);
if (((pco == NULL) && (psoTrg->sizlBitmap.cx >= prclTrg->right) &&
(psoTrg->sizlBitmap.cy >= prclTrg->bottom)) ||
((pco != NULL) && (psoTrg->sizlBitmap.cx >= pco->rclBounds.right) &&
(psoTrg->sizlBitmap.cy >= pco->rclBounds.bottom))) {
// Punt the call back to GDI to do the drawing.
rc = EngBitBlt(psoTrg, psoSrc, psoMask, pco, pxlo, prclTrg, pptlSrc,
pptlMask, pbo, pptlBrush, rop4);
}
else {
// If the bounding rectangle is greater the frame buffer, something
// is really wrong here. This means the desktop surface size and
// the framebuffer is not matched up. We need to bail out here.
rc = FALSE;
}
if (rc) {
TRC_DBG((TB, "ppdev(%p) psoSrc(%p) psoTrg(%p)"
"s[sizl(%d,%d) format(%d) type(%d)]"
"d[sizl(%d,%d) format(%d) type(%d)]"
"src(%d,%d) dst(%d,%d,%d,%d), rop %#x",
ppdev, psoSrc, psoTrg,
(psoSrc != NULL) ? psoSrc->sizlBitmap.cx : -1,
(psoSrc != NULL) ? psoSrc->sizlBitmap.cy : -1,
(psoSrc != NULL) ? psoSrc->iBitmapFormat : -1,
(psoSrc != NULL) ? psoSrc->iType : -1,
(psoTrg != NULL) ? psoTrg->sizlBitmap.cx : -1,
(psoTrg != NULL) ? psoTrg->sizlBitmap.cy : -1,
(psoTrg != NULL) ? psoTrg->iBitmapFormat : -1,
(psoTrg != NULL) ? psoTrg->iType : -1,
(pptlSrc != NULL) ? pptlSrc->x : -1,
(pptlSrc != NULL) ? pptlSrc->y : -1,
prclTrg->left,
prclTrg->top,
prclTrg->right,
prclTrg->bottom,
rop4));
// If ppdev is NULL then this is a blt to GDI managed memory bitmap,
// so there is no need to accumulate any output.
if (ppdev != NULL) {
// Get the bounding rectangle for the operation. According to
// the DDK, this rectangle is always well-ordered and does not
// need to be rearranged. Clip it to 16 bits.
bounds = *prclTrg;
OEClipRect(&bounds);
// If this function is changed, need to know that psoTrg points
// to the GDI DIB bitmap in offscreen bitmap case.
}
else {
// if ppdev is NULL, we are blt to GDI managed bitmap,
// so, the dhurf of the target surface should be NULL
TRC_ASSERT((pdsurfTrg == NULL),
(TB, "NULL ppdev - psoTrg has non NULL dhsurf"));
TRC_NRM((TB, "NULL ppdev - blt to GDI managed bitmap"));
DC_QUIT;
}
}
else {
TRC_ERR((TB, "EngBitBlt failed"));
DC_QUIT;
}
}
else {
if (psoTrg->iType == STYPE_DEVBITMAP) {
psoTrg = OEGetSurfObjBitmap(psoTrg, &pdsurfTrg);
if (psoSrc != NULL)
psoSrc = OEGetSurfObjBitmap(psoSrc, &pdsurfSrc);
// Punt the call back to GDI to do the drawing.
rc = EngBitBlt(psoTrg, psoSrc, psoMask, pco, pxlo, prclTrg, pptlSrc,
pptlMask, pbo, pptlBrush, rop4);
}
else {
TRC_ERR((TB, "Called when disconnected"));
rc = TRUE;
}
goto CalledOnDisconnected;
}
if ((psoTrg->hsurf == ppdev->hsurfFrameBuf) ||
(!(pdsurfTrg->flags & DD_NO_OFFSCREEN))) {
// Send a switch surface PDU if the destination surface is different
// from last drawing order. If we failed to send the PDU, we will
// just have to bail on this drawing order.
if (!OESendSwitchSurfacePDU(ppdev, pdsurfTrg)) {
TRC_ERR((TB, "failed to send the switch surface PDU"));
DC_QUIT;
}
}
else {
// If noOffscreen flag is on, we will bail on sending
// the client any further offscreen rendering. And we'll send the
// final offscreen to screen blt as regular memblt.
TRC_NRM((TB, "Offscreen blt bail"));
INC_OUTCOUNTER(OUT_BITBLT_NOOFFSCR);
DC_QUIT;
}
// Check if this 4-way ROP simplifies to a 3-way ROP. A 4-way ROP
// contains two 3-way ROPS, one for each setting of a mask bit - the
// high ROP3 corresponds to a value of zero in the mask bit. If the two
// 3-way ROPs are the same, we know the 4-way ROP is a 3-way ROP.
rop3 = ROP3_HIGH_FROM_ROP4(rop4);
if (ROP3_LOW_FROM_ROP4(rop4) == rop3) {
// Take the high byte as the 3-way ROP.
TRC_DBG((TB, "4-way ROP %04x is really 3-way %02x", rop4, rop3));
// Check if we are allowed to send the ROP.
if (OESendRop3AsOrder(rop3)) {
unsigned RetVal;
// Get the intersection between the dest rect and the
// clip rects. Check for overcomplicated or nonintersecting
// clipping.
RetVal = OEGetIntersectingClipRects(pco, &bounds, CD_ANY,
&ClipRects);
if (RetVal == CLIPRECTS_TOO_COMPLEX) {
TRC_NRM((TB, "Clipping is too complex"));
INC_OUTCOUNTER(OUT_BITBLT_SDA_COMPLEXCLIP);
if (oeLastDstSurface == NULL)
ADD_INCOUNTER(IN_SDA_BITBLT_COMPLEXCLIP_AREA,
COM_SIZEOF_RECT(bounds));
goto SendScreenData;
}
else if (RetVal == CLIPRECTS_NO_INTERSECTIONS) {
TRC_NRM((TB, "Clipping does not intersect destrect"));
DC_QUIT;
}
#ifdef PERF_SPOILING
else if (psoTrg->hsurf == ppdev->hsurfFrameBuf) {
// This is the case where the bitblt lies completely within
// the current screen-data dirty-rect, so we can just send
// it as screendata. (Actually, it's benign to goto
// SendScreenData, since the new RECT will just be collapsed
// into the current screen-data dirty-rects.)
if (ClipRects.rects.c==0) {
if (OEIsSDAIncluded(&bounds, 1)) {
goto SendScreenData;
}
} else {
if (OEIsSDAIncluded(&ClipRects.rects.arcl[0],
ClipRects.rects.c)) {
goto SendScreenData;
}
}
}
#endif
}
else {
TRC_NRM((TB, "Cannot send ROP %d", rop3));
INC_OUTCOUNTER(OUT_BITBLT_SDA_NOROP3);
if (oeLastDstSurface == NULL)
ADD_INCOUNTER(IN_SDA_BITBLT_NOROP3_AREA,
COM_SIZEOF_RECT(bounds));
goto SendScreenData;
}
}
else {
TRC_NRM((TB, "4-way ROP %08x", rop4));
INC_OUTCOUNTER(OUT_BITBLT_SDA_ROP4);
if (oeLastDstSurface == NULL)
ADD_INCOUNTER(IN_SDA_BITBLT_ROP4_AREA, COM_SIZEOF_RECT(bounds));
goto SendScreenData;
}
// Determine the blt type. It can be one of the following. Note that the
// following if statements are carefully tuned based on the most common
// blt types seen in WinStone/WinBench, to minimize mispredictions.
// In order of frequency:
//
// OpaqueRect: A destination-only blt where the output bits are overlaid
// on the output screen and the pattern is a solid color.
// PatBlt: An OpaqueRect with a non-solid-color pattern.
// MemBlt: A memory-to-memory/screen blt with no pattern.
// Mem3Blt: A memory-to-memory/screen blt with an accompanying pattern.
// DstBlt: Destination-only blt; the output is dependent on the screen
// contents.
// ScrBlt: A screen-to-screen blt (copy screen contents).
// Check for destination only BLTs (ie. independent of source bits).
if ((psoSrc == NULL) || ROP3_NO_SOURCE(rop3)) {
// Check for a pattern or true destination BLT.
if (!ROP3_NO_PATTERN(rop3)) {
// Check whether we can encode the PatBlt as an OpaqueRect.
// It must be solid with a PATCOPY rop.
if (pbo->iSolidColor != -1 && rop3 == OE_PATCOPY_ROP) {
if (!OEEncodeOpaqueRect(&bounds, pbo, ppdev, &ClipRects)) {
// Something went wrong with the encoding, so skip
// to the end to add this operation to the SDA.
if (oeLastDstSurface == NULL)
ADD_INCOUNTER(IN_SDA_OPAQUERECT_AREA,
COM_SIZEOF_RECT(bounds));
goto SendScreenData;
}
}
else if (!OEEncodePatBlt(ppdev, pbo, &bounds, pptlBrush, rop3,
&ClipRects)) {
// Something went wrong with the encoding, so skip to
// the end to add this operation to the SDA.
if (oeLastDstSurface == NULL)
ADD_INCOUNTER(IN_SDA_PATBLT_AREA,
COM_SIZEOF_RECT(bounds));
goto SendScreenData;
}
}
else {
if (!OEEncodeDstBlt(&bounds, rop3, ppdev, &ClipRects)) {
if (oeLastDstSurface == NULL)
ADD_INCOUNTER(IN_SDA_DSTBLT_AREA,
COM_SIZEOF_RECT(bounds));
goto SendScreenData;
}
}
}
else {
// We have a source BLT, check whether we have screen or memory BLTs.
if (psoSrc->hsurf != ppdev->hsurfFrameBuf) {
// The source surface is memory, so this is either memory to screen
// blt or memory to offscreen blt
if (psoTrg->hsurf == ppdev->hsurfFrameBuf || pdsurfTrg != NULL) {
// We only support destination surface as the screen surface
// or driver managed offscreen surface
unsigned OffscrBitmapId = 0;
MEMBLT_ORDER_EXTRA_INFO MemBltExtraInfo;
// Fill in extra info structure.
MemBltExtraInfo.pSource = psoSrc;
MemBltExtraInfo.pDest = psoTrg;
MemBltExtraInfo.pXlateObj = pxlo;
MemBltExtraInfo.bNoFastPathCaching = FALSE;
MemBltExtraInfo.iDeviceUniq = psoSrcArg ? (psoSrcArg->iUniq) : 0;
#ifdef PERF_SPOILING
MemBltExtraInfo.bIsPrimarySurface = (psoTrg->hsurf == ppdev->hsurfFrameBuf);
#endif
if (pdsurfSrc != NULL &&
(psoTrg->hsurf == ppdev->hsurfFrameBuf ||
pdsurfSrc == pdsurfTrg)) {
if ((pddShm->sbc.offscreenCacheInfo.supportLevel > TS_OFFSCREEN_DEFAULT) &&
(sbcEnabled & SBC_OFFSCREEN_CACHE_ENABLED)) {
if (pdsurfSrc->shareId == pddShm->shareId) {
// We are blting from an offscreen surface to client screen,
// Or from one area of an offscreen to another area of the
// same offscreen bitmap
if (!(pdsurfSrc->flags & DD_NO_OFFSCREEN)) {
OffscrBitmapId = pdsurfSrc->bitmapId;
CH_TouchCacheEntry(sbcOffscreenBitmapCacheHandle,
OffscrBitmapId);
}
else {
// If the source surface is offscreen surface, and we
// have the noOffscreen flag on, this means we will
// send the bitmap bits as regular memory bitmap bits
// This means that the offscreen bitmap has been evicted
// out of the offscreen cache or screen data needs to be
// sent for the offscreen bitmap
TRC_ALT((TB, "noOffscreen flag is on for %p", pdsurfSrc));
OffscrBitmapId = CH_KEY_UNCACHABLE;
}
}
else {
// This is the stale offscreen bitmap from last disconnected
// session. We need to turn off the offscreen flag on this
TRC_ALT((TB, "Need to turn off this offscreen bitmap"));
pdsurfSrc->flags |= DD_NO_OFFSCREEN;
OffscrBitmapId = CH_KEY_UNCACHABLE;
}
}
else {
// These are offscreen bitmaps from the disconnected session
// or client has sent an error pdu,
// We have to treat them as memory bitmap now since the client
// doesn't have the offscreen bitmap locally
TRC_ALT((TB, "Need to turn off this offscreen bitmap"));
pdsurfSrc->flags |= DD_NO_OFFSCREEN;
OffscrBitmapId = CH_KEY_UNCACHABLE;
}
}
else {
OffscrBitmapId = CH_KEY_UNCACHABLE;
}
// We send MemBlts for clients that allow offscreen rendering
// or if iUniq is nonzero. Zero iUniq is supposed to be a GDI
// hack in NT5 that tells us that Windows Layering for window
// borders is being used. We would want to send screen data
// for these cases to prevent flushing the bitmap cache.
// Unfortunately, quite a few bitmaps seem to also have
// iUniq==0, so for 5.1 clients using offscreen we save some
// bandwidth instead of sending screen data. The Windows
// Layering stuff uses offscreen rendering anyway...
if (psoSrcArg->iUniq != 0) {
// We have a memory to screen BLT, check which type.
if (ROP3_NO_PATTERN(rop3)) {
// Make sure orders are not turned off.
if (OE_SendAsOrder(TS_ENC_MEMBLT_R2_ORDER)) {
if (!OEEncodeMemBlt(&bounds, &MemBltExtraInfo,
TS_ENC_MEMBLT_R2_ORDER, OffscrBitmapId,
rop3, pptlSrc, pptlBrush, pbo, ppdev,
&ClipRects)) {
if (oeLastDstSurface == NULL)
ADD_INCOUNTER(IN_SDA_MEMBLT_AREA,
COM_SIZEOF_RECT(bounds));
goto SendScreenData;
}
}
else {
TRC_NRM((TB, "MemBlt order not allowed"));
INC_OUTCOUNTER(OUT_BITBLT_SDA_UNSUPPORTED);
goto SendScreenData;
}
}
else {
// Make sure orders are not turned off.
if (OE_SendAsOrder(TS_ENC_MEM3BLT_R2_ORDER)) {
if (!OEEncodeMemBlt(&bounds, &MemBltExtraInfo,
TS_ENC_MEM3BLT_R2_ORDER, OffscrBitmapId,
rop3, pptlSrc, pptlBrush, pbo, ppdev,
&ClipRects)) {
if (oeLastDstSurface == NULL)
ADD_INCOUNTER(IN_SDA_MEM3BLT_AREA,
COM_SIZEOF_RECT(bounds));
goto SendScreenData;
}
}
else {
TRC_NRM((TB, "Mem3Blt order not allowed"));
INC_OUTCOUNTER(OUT_BITBLT_SDA_UNSUPPORTED);
goto SendScreenData;
}
}
}
else {
// To avoid Windows Layering Mem to Mem Blt flush bitmap caches
// on the client, we have to send it as screen data instead
TRC_NRM((TB, "Get a windows layering mem-mem blt, "
"send as screen data"));
INC_OUTCOUNTER(OUT_BITBLT_SDA_WINDOWSAYERING);
goto SendScreenData;
}
}
else {
TRC_ALT((TB, "Unsupported MEM to MEM blt!"));
DC_QUIT;
}
}
else {
// The source surface is screen, so this is either screen to screen
// blt or screen to offscreen memory blt
if (psoTrg->hsurf == ppdev->hsurfFrameBuf || pdsurfTrg != NULL) {
// We only support destination only screen BLTs (ie. no
// patterns allowed).
if (ROP3_NO_PATTERN(rop3)) {
if (!OEEncodeScrBlt(&bounds, rop3, pptlSrc, ppdev,
&ClipRects, pco)) {
if (oeLastDstSurface == NULL)
ADD_INCOUNTER(IN_SDA_SCRBLT_AREA,
COM_SIZEOF_RECT(bounds));
goto SendScreenData;
}
}
else {
TRC_ALT((TB, "Unsupported screen ROP %x", rop3));
if (oeLastDstSurface == NULL)
ADD_INCOUNTER(IN_SDA_SCRSCR_FAILROP_AREA,
COM_SIZEOF_RECT(bounds));
INC_OUTCOUNTER(OUT_BITBLT_SDA_UNSUPPORTED);
goto SendScreenData;
}
}
else {
TRC_NRM((TB, "Unsupported SCR to MEM blt!"));
DC_QUIT;
}
}
}
// We added an order to the list, increment global counts.
goto PostSDA;
SendScreenData:
if (psoTrg->hsurf == ppdev->hsurfFrameBuf) {
INC_OUTCOUNTER(OUT_BITBLT_SDA);
OEClipAndAddScreenDataArea(&bounds, pco);
}
else {
// if we can't send orders for offscreen rendering, we will
// bail offscreen support for this bitmap
TRC_ALT((TB, "screen data call for offscreen rendering"));
// Remove the bitmap from the offscreen bitmap cache
if (!(pdsurfTrg->flags & DD_NO_OFFSCREEN))
CH_RemoveCacheEntry(sbcOffscreenBitmapCacheHandle,
pdsurfTrg->bitmapId);
DC_QUIT;
}
PostSDA:
SCH_DDOutputAvailable(ppdev, FALSE);
DC_EXIT_POINT:
// EngStretchBlt called from DrvStretchBlt sometimes calls DrvBitBlt to
// do its drawing. Clear the flag here to tell DrvStretchBlt that it
// doesn't need to send any output.
oeAccumulateStretchBlt = FALSE;
CalledOnDisconnected:
DC_END_FN();
return rc;
}
/****************************************************************************/
// DrvStretchBlt - see NT DDK documentation.
/****************************************************************************/
BOOL RDPCALL DrvStretchBlt(
SURFOBJ *psoTrg,
SURFOBJ *psoSrc,
SURFOBJ *psoMask,
CLIPOBJ *pco,
XLATEOBJ *pxlo,
COLORADJUSTMENT *pca,
POINTL *pptlHTOrg,
RECTL *prclTrg,
RECTL *prclSrc,
POINTL *pptlMask,
ULONG iMode)
{
PDD_PDEV ppdev = (PDD_PDEV)psoTrg->dhpdev;
PDD_DSURF pdsurfTrg = NULL;
PDD_DSURF pdsurfSrc = NULL;
SURFOBJ *psoTrgBitmap, *psoSrcBitmap;
BOOL rc = TRUE;
POINTL ptlSrc;
RECTL rclTrg;
int bltWidth;
int bltHeight;
OE_ENUMRECTS ClipRects;
MEMBLT_ORDER_EXTRA_INFO MemBltExtraInfo;
DC_BEGIN_FN("DrvStretchBlt");
// psoTrg and psoSrc should not be NULL.
psoTrgBitmap = OEGetSurfObjBitmap(psoTrg, &pdsurfTrg);
psoSrcBitmap = OEGetSurfObjBitmap(psoSrc, &pdsurfSrc);
// Sometimes, we're called after being disconnected. This is a pain,
// but we can trap it here.
if (ddConnected && pddShm != NULL) {
INC_OUTCOUNTER(OUT_STRTCHBLT_ALL);
// Get the destination rectangle, ordering it properly if necessary.
// Note we don't have to order the src rect -- according to the
// DDK it is guaranteed well-ordered. Clip the result to 16 bits.
RECT_FROM_RECTL(rclTrg, (*prclTrg));
OEClipRect(&rclTrg);
if ((psoTrgBitmap->hsurf == ppdev->hsurfFrameBuf) ||
(!(pdsurfTrg->flags & DD_NO_OFFSCREEN))) {
// Send a switch surface PDU if the destination surface is different
// from last drawing order. If we failed to send the PDU, we will
// just have to bail on this drawing order.
if (!OESendSwitchSurfacePDU(ppdev, pdsurfTrg)) {
TRC_ERR((TB, "failed to send the switch surface PDU"));
goto SendSDA;
}
}
else {
// if noOffscreen flag is on, we will bail on sending
// the client any further offscreen rendering. And will send the
// final offscreen to screen blt as regular memblt.
TRC_NRM((TB, "Offscreen blt bail"));
goto SendSDA;
}
// Check that we have a valid ROP code. The NT DDK states that
// the ROP code for the StretchBlt is implicit in the mask
// specification. If a mask is specified, we have an implicit
// ROP4 of 0xCCAA, otherwise the code is 0xCCCC.
//
// Our BitBlt code only encodes orders for ROP3s, so we must
// throw any StretchBlts with a mask.
if (psoMask == NULL) {
unsigned RetVal;
// Get the intersection between the dest rect and the
// clip rects. Check for overcomplicated or nonintersecting
// clipping.
RetVal = OEGetIntersectingClipRects(pco, &rclTrg, CD_ANY,
&ClipRects);
if (RetVal == CLIPRECTS_TOO_COMPLEX) {
TRC_NRM((TB, "Clipping is too complex"));
INC_OUTCOUNTER(OUT_STRTCHBLT_SDA_COMPLEXCLIP);
goto SendSDA;
}
else if (RetVal == CLIPRECTS_NO_INTERSECTIONS) {
TRC_NRM((TB, "Clipping does not intersect destrect"));
goto PostSDA;
}
}
else {
TRC_NRM((TB, "Mask specified"));
INC_OUTCOUNTER(OUT_STRTCHBLT_SDA_MASK);
goto SendSDA;
}
}
else {
if (psoTrg->iType == STYPE_DEVBITMAP) {
rc = EngStretchBlt(psoTrgBitmap, psoSrcBitmap, psoMask, pco, pxlo,
pca, pptlHTOrg, prclTrg, prclSrc, pptlMask, iMode);
}
else {
TRC_ERR((TB, "Called when disconnected"));
}
goto CalledOnDisconnected;
}
// DrvStretchBlt can be called with unclipped coords, but we need clipped
// coords. We must therefore perform clipping here to avoid faults in
// callbacks to EngBitBlt from DrvBitBlt.
// First clip the destination rect to the destination surface.
ptlSrc.x = prclSrc->left;
ptlSrc.y = prclSrc->top;
if (rclTrg.left < 0) {
ptlSrc.x += (-rclTrg.left);
rclTrg.left = 0;
TRC_NRM((TB, "Clip trg left"));
}
if (rclTrg.top < 0) {
ptlSrc.y += (-rclTrg.top);
rclTrg.top = 0;
TRC_NRM((TB, "Clip trg top"));
}
// We need to clip to the screen size instead of the size of psoTrg
// (the screen surface) here - after reconnection at lower resolution
// psoTrg->sizlBitmap can be larger than the real screen size.
rclTrg.right = min(rclTrg.right, ppdev->cxScreen);
rclTrg.bottom = min(rclTrg.bottom, ppdev->cyScreen);
// Check if we have a degenerate (ie. no stretch) case. Use the
// original coords, because it is possible for one of the rects to
// be flipped to perform an inverted blt.
if ((prclSrc->right - prclSrc->left == prclTrg->right - prclTrg->left) &&
(prclSrc->bottom - prclSrc->top == prclTrg->bottom - prclTrg->top)) {
// Adjust the destination blt size to keep the source rect within
// the source bitmap, if necessary. Note this should be done here
// instead of before determining 1:1 stretch since the amount to
// change rclTrg by would vary according to the stretch ratio.
if (ptlSrc.x < 0) {
rclTrg.left += (-ptlSrc.x);
ptlSrc.x = 0;
TRC_NRM((TB, "Clip src left"));
}
if (ptlSrc.y < 0) {
rclTrg.top += (-ptlSrc.y);
ptlSrc.y = 0;
TRC_NRM((TB, "Clip src top"));
}
bltWidth = rclTrg.right - rclTrg.left;
if ((ptlSrc.x + bltWidth) > psoSrcBitmap->sizlBitmap.cx) {
rclTrg.right -= ((ptlSrc.x + bltWidth) -
psoSrcBitmap->sizlBitmap.cx);
TRC_NRM((TB, "Clip src right"));
}
bltHeight = rclTrg.bottom - rclTrg.top;
if ((ptlSrc.y + bltHeight) > psoSrcBitmap->sizlBitmap.cy) {
rclTrg.bottom -= ((ptlSrc.y + bltHeight) -
psoSrcBitmap->sizlBitmap.cy);
TRC_NRM((TB, "Clip src bottom"));
}
// Check again for complete clipping out.
if (rclTrg.right > rclTrg.left && rclTrg.bottom > rclTrg.top) {
INC_OUTCOUNTER(OUT_STRTCHBLT_BITBLT);
rc = DrvBitBlt(psoTrg, psoSrc, psoMask, pco, pxlo, &rclTrg,
&ptlSrc, pptlMask, NULL, NULL, 0xCCCC);
}
else {
TRC_NRM((TB, "StretchBlt completely clipped"));
}
goto PostSDA;
}
else {
// Non-degenerate case -- we are really stretching.
// Here we simply blt to the screen, then do a bitblt specifying the
// destination rect to the screen as the source rect.
// EngStretchBlt sometimes calls DrvBitBlt to do its drawing. Set
// the flag here before we call to default to sending SDA output.
// If DrvBitBlt has done all the processing it needs to it will
// clear the flag.
oeAccumulateStretchBlt = TRUE;
rc = EngStretchBlt(psoTrgBitmap, psoSrcBitmap, psoMask, pco, pxlo,
pca, pptlHTOrg, prclTrg, prclSrc, pptlMask, iMode);
if (rc && oeAccumulateStretchBlt) {
// DrvBitBlt was not called already, and we're drawing to our
// screen surface.
// Fill in extra info structure. Note NULL pxlo meaning no
// color translation -- we're drawing from screen to screen.
// Also, because we are caching directly from the screen
// we need to turn off fast-path caching -- sometimes we
// get multiple StretchBlts to nearby areas of the screen,
// where we may fast-path cache a block that is drawn again
// on a successive StretchBlt, thereby drawing the wrong tile
// at the client.
MemBltExtraInfo.pSource = psoTrgBitmap;
MemBltExtraInfo.pDest = psoTrgBitmap;
MemBltExtraInfo.pXlateObj = NULL;
MemBltExtraInfo.bNoFastPathCaching = TRUE;
MemBltExtraInfo.iDeviceUniq = psoTrg ? (psoTrg->iUniq) : 0;
#ifdef PERF_SPOILING
MemBltExtraInfo.bIsPrimarySurface = (psoTrgBitmap->hsurf == ppdev->hsurfFrameBuf);
#endif
// Make sure orders are not turned off.
if (OE_SendAsOrder(TS_ENC_MEMBLT_R2_ORDER)) {
// Note pco is clip obj for destination and so is applicable
// here. We also use ROP3 of 0xCC meaning copy src->dest.
if (!OEEncodeMemBlt(&rclTrg, &MemBltExtraInfo,
TS_ENC_MEMBLT_R2_ORDER, CH_KEY_UNCACHABLE, 0xCC,
(PPOINTL)&rclTrg.left, NULL, NULL, ppdev,
&ClipRects))
goto SendSDAPostEngStretchBlt;
}
else {
TRC_NRM((TB, "MemBlt order not allowed"));
INC_OUTCOUNTER(OUT_BITBLT_SDA_UNSUPPORTED);
goto SendSDAPostEngStretchBlt;
}
}
goto PostSDA;
}
SendSDA:
// Accumulate screen data if necessary. EngStretchBlt may have
// called DrvCopyBits or DrvBitblt to do the work. These two will
// have accumulated the data, so no need to do it here.
TRC_NRM((TB, "***Add SDA for STRETCHBLT"));
// EngStretchBlt sometimes calls DrvBitBlt to do its drawing. Set
// the flag here before we call to default to sending SDA output.
// If DrvBitBlt has done all the processing it needs to it will
// clear the flag.
oeAccumulateStretchBlt = TRUE;
rc = EngStretchBlt(psoTrgBitmap, psoSrcBitmap, psoMask, pco, pxlo, pca,
pptlHTOrg, prclTrg, prclSrc, pptlMask, iMode);
if (oeAccumulateStretchBlt) {
SendSDAPostEngStretchBlt:
if (psoTrgBitmap->hsurf == ppdev->hsurfFrameBuf) {
INC_OUTCOUNTER(OUT_STRTCHBLT_SDA);
SCH_DDOutputAvailable(ppdev, FALSE);
}
else {
// if we can't send orders for offscreen rendering, we will
// bail offscreen support for this bitmap
TRC_ALT((TB, "screen data call for offscreen rendering"));
if (!(pdsurfTrg->flags & DD_NO_OFFSCREEN))
CH_RemoveCacheEntry(sbcOffscreenBitmapCacheHandle,
pdsurfTrg->bitmapId);
}
}
PostSDA:
CalledOnDisconnected:
DC_END_FN();
return rc;
}
/****************************************************************************/
// DrvCopyBits - see NT DDK documentation.
/****************************************************************************/
BOOL RDPCALL DrvCopyBits(
SURFOBJ *psoTrg,
SURFOBJ *psoSrc,
CLIPOBJ *pco,
XLATEOBJ *pxlo,
RECTL *prclTrg,
POINTL *pptlSrc)
{
BOOL rc;
DC_BEGIN_FN("DrvCopyBits");
if (ddConnected) {
INC_OUTCOUNTER(OUT_COPYBITS_ALL);
// CopyBits is a fast path for the NT display drivers. In our case it
// can always be processed as a BitBlt with copy ROP.
rc = DrvBitBlt(psoTrg, psoSrc, NULL, pco, pxlo, prclTrg, pptlSrc,
NULL, NULL, NULL, 0xCCCC);
}
else {
PDD_DSURF pdsurfTrg;
PDD_DSURF pdsurfSrc;
TRC_NRM((TB, "Called when disconnected"));
TRC_ASSERT((psoSrc != NULL),(TB,"NULL source surface!"));
// We can get called by GDI after disconnection to translate offscreen
// bitmap surfaces from the DD-specific representation to a GDI surface,
// for reuse with a different DD. Most often this occurs with Personal
// TS switching between a remote DD, the disconnected DD (tsddd.dll),
// and a hardware DD. For this case we really do need to do the
// CopyBits action. So, we have GDI do it for us since we're really
// already having GDI manage our "internal" representation.
psoTrg = OEGetSurfObjBitmap(psoTrg, &pdsurfTrg);
psoSrc = OEGetSurfObjBitmap(psoSrc, &pdsurfSrc);
rc = EngCopyBits(psoTrg, psoSrc, pco, pxlo, prclTrg, pptlSrc);
if (!rc) {
TRC_ERR((TB,"Post-disc copy: rc=FALSE"));
}
// Must return TRUE to ensure that the PTS console will reconnect
// properly, otherwise the user's machine gets stuck in limbo.
rc = TRUE;
}
DC_END_FN();
return rc;
}
/***************************************************************************/
// OE_SendCreateOffscrBitmapOrder
//
// Send create offscreen bitmap request to client
/***************************************************************************/
BOOL RDPCALL OE_SendCreateOffscrBitmapOrder(
PDD_PDEV ppdev,
SIZEL sizl,
ULONG iFormat,
unsigned clientBitmapId)
{
BOOL rc;
unsigned cbOrderSize, bitmapSize;
PINT_ORDER pOrder;
PTS_CREATE_OFFSCR_BITMAP_ORDER pOffscrBitmapOrder;
DC_BEGIN_FN("OE_SendCreateOffscrBitmapOrder");
// Get the current bitmap Size
if (iFormat < 5) {
bitmapSize = sizl.cx * sizl.cy * (1 << iFormat) / 8;
} else if (iFormat == 5) {
bitmapSize = sizl.cx * sizl.cy * 24 / 8;
} else if (iFormat == 6) {
bitmapSize = sizl.cx * sizl.cy * 32 / 8;
} else {
TRC_NRM((TB, "Bitmap format not supported"));
return FALSE;
}
// The last entry in the delete list will always be the entry we are using
// for create this bitmap. So, remove this from the delete list.
if (sbcNumOffscrBitmapsToDelete) {
TRC_ASSERT((sbcOffscrBitmapsDelList[sbcNumOffscrBitmapsToDelete-1].bitmapId ==
clientBitmapId), (TB, "different bitmap id"));
sbcOffscrBitmapsToDeleteSize -=
sbcOffscrBitmapsDelList[sbcNumOffscrBitmapsToDelete - 1].bitmapSize;
sbcNumOffscrBitmapsToDelete--;
}
// check if we need to send the delete bitmap list. We only need to
// send the list if we are about to exceed client offscreen cache size
// limit.
if (bitmapSize + oeCurrentOffscreenCacheSize + sbcOffscrBitmapsToDeleteSize <=
(pddShm->sbc.offscreenCacheInfo.cacheSize * 1024)) {
cbOrderSize = sizeof(TS_CREATE_OFFSCR_BITMAP_ORDER) -
sizeof(pOffscrBitmapOrder->variableBytes);
} else {
// Note we use the UINT16 at variableBytes for the number of
// bitmaps. Hence, we don't subtract the size of variableBytes here.
cbOrderSize = sizeof(TS_CREATE_OFFSCR_BITMAP_ORDER) + sizeof(UINT16) *
sbcNumOffscrBitmapsToDelete;
}
pOrder = OA_AllocOrderMem(ppdev, cbOrderSize);
if (pOrder != NULL) {
// Fill in the details. This is an alternate secondary order
// type.
pOffscrBitmapOrder = (PTS_CREATE_OFFSCR_BITMAP_ORDER)pOrder->OrderData;
pOffscrBitmapOrder->ControlFlags = (TS_ALTSEC_CREATE_OFFSCR_BITMAP <<
TS_ALTSEC_ORDER_TYPE_SHIFT) | TS_SECONDARY;
pOffscrBitmapOrder->Flags = (UINT16)clientBitmapId;
pOffscrBitmapOrder->cx = (UINT16)sizl.cx;
pOffscrBitmapOrder->cy = (UINT16)sizl.cy;
// Send the delete bitmap list
if (cbOrderSize > sizeof(TS_CREATE_OFFSCR_BITMAP_ORDER)) {
PUINT16_UA pData;
unsigned i;
// This flag indicates that the delete bitmap list is appended.
pOffscrBitmapOrder->Flags |= 0x8000;
pData = (PUINT16_UA)pOffscrBitmapOrder->variableBytes;
*pData++ = (UINT16)sbcNumOffscrBitmapsToDelete;
for (i = 0; i < sbcNumOffscrBitmapsToDelete; i++)
*pData++ = (UINT16)sbcOffscrBitmapsDelList[i].bitmapId;
// Reset the flags.
sbcNumOffscrBitmapsToDelete = 0;
sbcOffscrBitmapsToDeleteSize = 0;
}
INC_OUTCOUNTER(OUT_OFFSCREEN_BITMAP_ORDER);
ADD_OUTCOUNTER(OUT_OFFSCREEN_BITMAP_ORDER_BYTES, cbOrderSize);
OA_AppendToOrderList(pOrder);
rc = TRUE;
}
else {
TRC_ERR((TB,"Unable to alloc heap space"));
rc = FALSE;
}
DC_END_FN();
return rc;
}
/****************************************************************************/
// DrvCreateDeviceBitmap - See NT DDK for documentation
/****************************************************************************/
HBITMAP DrvCreateDeviceBitmap(DHPDEV dhpdev, SIZEL sizl, ULONG iFormat)
{
PDD_PDEV ppdev;
PDD_DSURF pdsurf;
HBITMAP hbmDevice = NULL;
HBITMAP hbmDib;
FLONG flHooks;
SURFOBJ *pso;
unsigned bitmapSize;
ULONG iFormatArg = iFormat;
DC_BEGIN_FN("DrvCreateDeviceBitmap");
if (ddConnected && pddShm != NULL) {
INC_OUTCOUNTER(OUT_OFFSCREEN_BITMAP_ALL);
ppdev = (PDD_PDEV) dhpdev;
if (ddConsole) {
//
// For the console case, since we accept any Format by overwritting it,
// we accept Format=1 (1bpp). This case is not fully supported by GDI.
// So skip it and do as a regular remote session.
//
if (iFormat == 1)
DC_QUIT;
iFormat = ppdev->iBitmapFormat;
}
if (OEDeviceBitmapCachable(ppdev, sizl, iFormat)) {
if (iFormat < 5)
bitmapSize = sizl.cx * sizl.cy * (1 << iFormat) / 8;
else if (iFormat == 5)
bitmapSize = sizl.cx * sizl.cy * 24 / 8;
else if (iFormat == 6)
bitmapSize = sizl.cx * sizl.cy * 32 / 8;
else {
TRC_NRM((TB, "Bitmap format not supported"));
DC_QUIT;
}
goto CreateBitmap;
}
else {
TRC_DBG((TB, "OEDeviceBitmapCachable returns FALSE"));
DC_QUIT;
}
}
else {
//TRC_DBG((TB, "Call on disconnected"));
DC_QUIT;
}
CreateBitmap:
// Create the device surface for this offscreen bitmap.
// This device surface handle is used to identify the offscreen
// bitmap in all DrvXXX calls.
pdsurf = EngAllocMem(FL_ZERO_MEMORY, sizeof(DD_DSURF), DD_ALLOC_TAG);
if (pdsurf != NULL) {
// initialize the DD_DSURF fields
memset(pdsurf, 0, sizeof(DD_DSURF));
// Create a device bitmap for this offscreen bitmap
hbmDevice = EngCreateDeviceBitmap((DHSURF) pdsurf, sizl, iFormat);
if (hbmDevice != NULL) {
// Get the flHooks flag from the PDEV struct
flHooks = ppdev->flHooks;
// Associate the bitmap to the PDEV device
if (EngAssociateSurface((HSURF) hbmDevice, ppdev->hdevEng,
flHooks)) {
// Create a DIB backup bitmap for this offscreen bitmap
hbmDib = EngCreateBitmap(sizl,
TS_BYTES_IN_SCANLINE(sizl.cx, ppdev->cClientBitsPerPel),
ppdev->iBitmapFormat, BMF_TOPDOWN, NULL);
if (hbmDib) {
// Associate the bitmap to the PDEV device
if (EngAssociateSurface((HSURF) hbmDib, ppdev->hdevEng, 0)) {
// Lock the surface to get the surf obj
pso = EngLockSurface((HSURF) hbmDib);
if (pso != NULL)
{
int i;
unsigned clientBitmapId;
CHDataKeyContext CHContext;
// Setup offscreen device surface struct
pdsurf->shareId = pddShm->shareId;
pdsurf->sizl = sizl;
pdsurf->iBitmapFormat = iFormat;
pdsurf->ppdev = ppdev;
pdsurf->pso = pso;
pdsurf->flags = 0;
CH_CreateKeyFromFirstData(&CHContext,
(BYTE *)(&pdsurf), sizeof(pdsurf));
// Cache the offscreen bitmap in the cache
clientBitmapId = CH_CacheKey(
sbcOffscreenBitmapCacheHandle,
CHContext.Key1, CHContext.Key2,
(VOID *)pdsurf);
if (clientBitmapId != CH_KEY_UNCACHABLE) {
// send a create offscreen bitmap pdu
if (OE_SendCreateOffscrBitmapOrder(ppdev,
sizl, iFormat, clientBitmapId)) {
// Update the current offscreen cache size
oeCurrentOffscreenCacheSize += bitmapSize;
pdsurf->bitmapId = clientBitmapId;
TRC_NRM((TB, "Created an offscreen bitmap"));
DC_QUIT;
} else {
TRC_ERR((TB, "Failed to send the create bitmap pdu"));
CH_RemoveCacheEntry(
sbcOffscreenBitmapCacheHandle, clientBitmapId);
EngDeleteSurface((HSURF)hbmDevice);
hbmDevice = NULL;
DC_QUIT;
}
} else {
TRC_ERR((TB, "Failed to cache the bitmap"));
EngDeleteSurface((HSURF)hbmDevice);
hbmDevice = NULL;
DC_QUIT;
}
} else {
TRC_ERR((TB, "Failed to lock the surfac"));
EngDeleteSurface((HSURF)hbmDib);
EngDeleteSurface((HSURF)hbmDevice);
hbmDevice = NULL;
DC_QUIT;
}
} else {
TRC_ERR((TB, "Failed to associate the surface to device"));
EngDeleteSurface((HSURF)hbmDib);
EngDeleteSurface((HSURF)hbmDevice);
hbmDevice = NULL;
DC_QUIT;
}
} else {
TRC_ERR((TB, "Failed to create backup DIB bitmap"));
EngDeleteSurface((HSURF)hbmDevice);
hbmDevice = NULL;
DC_QUIT;
}
} else {
TRC_ERR((TB, "Failed to associate the device surface to the device"));
EngDeleteSurface((HSURF)hbmDevice);
hbmDevice = NULL;
DC_QUIT;
}
} else {
TRC_ERR((TB, "Failed to allocate memory for the device surface"));
EngFreeMem(pdsurf);
DC_QUIT;
}
} else {
TRC_ERR((TB, "Failed to allocate memory for the device surface"));
DC_QUIT;
}
DC_EXIT_POINT:
DC_END_FN();
return hbmDevice;
}
/****************************************************************************/
// DrvDeleteDeviceBitmap - See NT DDK for documentation
/****************************************************************************/
VOID DrvDeleteDeviceBitmap(DHSURF dhsurf)
{
PDD_DSURF pdsurf;
PDD_PDEV ppdev;
SURFOBJ *psoDib;
HSURF hsurfDib;
DC_BEGIN_FN("DrvDeleteDeviceBitmap");
pdsurf = (PDD_DSURF)dhsurf;
ppdev = pdsurf->ppdev;
if (ddConnected && pddShm != NULL) {
if ((pddShm->sbc.offscreenCacheInfo.supportLevel > TS_OFFSCREEN_DEFAULT) &&
(sbcEnabled & SBC_OFFSCREEN_CACHE_ENABLED)) {
if (!(pdsurf->flags & DD_NO_OFFSCREEN) &&
(pdsurf->shareId == pddShm->shareId)) {
CH_RemoveCacheEntry(sbcOffscreenBitmapCacheHandle, pdsurf->bitmapId);
} else {
// This is when the bitmap is bumped out of the cache
TRC_NRM((TB, "Failed to find the offscreen bitmap in the cache"));
DC_QUIT;
}
}
else {
TRC_ERR((TB, "offscreen rendering is not supported"));
DC_QUIT;
}
}
else {
TRC_ERR((TB, "Call on disconnected"));
DC_QUIT;
}
DC_EXIT_POINT:
// Get the hsurf from the SURFOBJ before we unlock it (it's not
// legal to dereference psoDib when it's unlocked):
psoDib = pdsurf->pso;
if (psoDib) {
hsurfDib = psoDib->hsurf;
EngUnlockSurface(psoDib);
EngDeleteSurface(hsurfDib);
}
EngFreeMem(pdsurf);
DC_END_FN();
}
#ifdef DRAW_NINEGRID
/****************************************************************************/
// DrvNineGrid - This is to support Whistler Luna Draw9Grid operation
/****************************************************************************/
BOOL DrvNineGrid(
SURFOBJ *psoTrg,
SURFOBJ *psoSrc,
CLIPOBJ *pco,
XLATEOBJ *pxlo,
PRECTL prclTrg,
PRECTL prclSrc,
PNINEGRID png,
BLENDOBJ* pBlendObj,
PVOID pvReserved)
{
BOOL rc = TRUE;
SURFOBJ *psoTrgArg;
SURFOBJ *psoSrcArg;
PDD_PDEV ppdev = (PDD_PDEV)psoTrg->dhpdev;
PDD_DSURF pdsurfTrg = NULL;
PDD_DSURF pdsurfSrc = NULL;
RECTL bounds;
OE_ENUMRECTS clipRects;
unsigned nineGridBitmapId = 0;
unsigned clipVal;
DC_BEGIN_FN("DrvNineGrid")
if (ddConnected && pddShm != NULL) {
psoTrgArg = psoTrg;
psoSrcArg = psoSrc;
// Get the GDI format source and destination bitmaps
psoTrg = OEGetSurfObjBitmap(psoTrg, &pdsurfTrg);
if (psoSrc != NULL)
psoSrc = OEGetSurfObjBitmap(psoSrc, &pdsurfSrc);
// if the client doesn't support drawninegrid, return false to reroute
if (sbcDrawNineGridBitmapCacheHandle == NULL || (pddShm != NULL &&
pddShm->sbc.drawNineGridCacheInfo.supportLevel <= TS_DRAW_NINEGRID_DEFAULT) ||
!OE_SendAsOrder(TS_ENC_DRAWNINEGRID_ORDER) ||
!OE_SendAsOrder(TS_ENC_MULTI_DRAWNINEGRID_ORDER) ||
(ppdev != NULL && !((psoTrg->hsurf == ppdev->hsurfFrameBuf) ||
(!(pdsurfTrg->flags & DD_NO_OFFSCREEN))))) {
return EngNineGrid(psoTrgArg, psoSrcArg, pco, pxlo, prclTrg, prclSrc, png,
pBlendObj, pvReserved);
}
//DD_UPD_STATE(DD_BITBLT);
//INC_OUTCOUNTER(OUT_BITBLT_ALL);
// Punt the call back to GDI to do the drawing.
rc = EngNineGrid(psoTrg, psoSrc, pco, pxlo, prclTrg, prclSrc, png,
pBlendObj, pvReserved);
if (rc) {
// If ppdev is NULL then this is a blt to GDI managed memory bitmap,
// so there is no need to accumulate any output.
if (ppdev != NULL) {
BOOL bMirror;
// The following is true for DrvBitBlt, need to find out for
// get the bounding rectangle for the operation. According to
// the DDK, this rectangle is always well-ordered and does not
// need to be rearranged.
// Clip it to 16 bits.
bounds = *prclTrg;
OEClipRect(&bounds);
// If the bound is right to left, we need to switch it.
bMirror = bounds.left > bounds.right;
if (bMirror)
{
LONG lRight = bounds.left;
bounds.left = bounds.right;
bounds.right = lRight;
}
}
else {
// if ppdev is NULL, we are blt to GDI managed bitmap,
// so, the dhurf of the target surface should be NULL
TRC_ASSERT((pdsurfTrg == NULL),
(TB, "NULL ppdev - psoTrg has non NULL dhsurf"));
TRC_NRM((TB, "NULL ppdev - blt to GDI managed bitmap"));
DC_QUIT;
}
}
else {
TRC_ERR((TB, "EngBitBlt failed"));
DC_QUIT;
}
}
else {
if (psoTrg->iType == STYPE_DEVBITMAP) {
psoTrg = OEGetSurfObjBitmap(psoTrg, &pdsurfTrg);
if (psoSrc != NULL)
psoSrc = OEGetSurfObjBitmap(psoSrc, &pdsurfSrc);
// Punt the call back to GDI to do the drawing.
rc = EngNineGrid(psoTrg, psoSrc, pco, pxlo, prclTrg, prclSrc, png,
pBlendObj, pvReserved);
}
else {
TRC_ERR((TB, "Called when disconnected"));
rc = TRUE;
}
DC_QUIT;
}
if (!((psoTrg->hsurf == ppdev->hsurfFrameBuf) ||
(!(pdsurfTrg->flags & DD_NO_OFFSCREEN)))) {
// If noOffscreen flag is on, we will bail on sending
// the client any further offscreen rendering. And we'll send the
// final offscreen to screen blt as regular memblt.
TRC_NRM((TB, "Offscreen blt bail"));
//INC_OUTCOUNTER(OUT_BITBLT_NOOFFSCR);
DC_QUIT;
}
// Get the intersection between the dest rect and the
// clip rects. Check for overcomplicated or nonintersecting
// clipping.
clipVal = OEGetIntersectingClipRects(pco, &bounds, CD_ANY,
&clipRects);
if (clipVal == CLIPRECTS_TOO_COMPLEX) {
TRC_NRM((TB, "Clipping is too complex"));
//INC_OUTCOUNTER(OUT_BITBLT_SDA_COMPLEXCLIP);
//if (oeLastDstSurface == NULL)
// ADD_INCOUNTER(IN_SDA_BITBLT_COMPLEXCLIP_AREA,
// COM_SIZEOF_RECT(bounds));
goto SendScreenData;
}
else if (clipVal == CLIPRECTS_NO_INTERSECTIONS) {
TRC_NRM((TB, "Clipping does not intersect destrect"));
DC_QUIT;
}
// Cache the source bitmap
TRC_ASSERT((psoSrcArg->iUniq != 0), (TB, "Source bitmap should be cachable"));
TRC_ASSERT((pdsurfSrc == NULL), (TB, "The source bitmap for this should be GDI managed bitmap"));
TRC_ASSERT((psoSrc->iBitmapFormat == BMF_32BPP), (TB, "for now, we always get 32bpp bitmap"));
TRC_ASSERT((pBlendObj->BlendFunction.BlendOp == 0 &&
pBlendObj->BlendFunction.BlendFlags == 0 &&
pBlendObj->BlendFunction.SourceConstantAlpha == 255 &&
pBlendObj->BlendFunction.AlphaFormat == 1), (TB, "Received unknown blend function"));
if (!OECacheDrawNineGridBitmap(ppdev, psoSrc, png, &nineGridBitmapId)) {
TRC_ERR((TB, "Failed to cache drawninegrid bitmap"));
goto SendScreenData;
}
// Switch drawing surface if needed
if ((psoTrg->hsurf == ppdev->hsurfFrameBuf) ||
(!(pdsurfTrg->flags & DD_NO_OFFSCREEN))) {
// Send a switch surface PDU if the destination surface is different
// from last drawing order. If we failed to send the PDU, we will
// just have to bail on this drawing order.
if (!OESendSwitchSurfacePDU(ppdev, pdsurfTrg)) {
TRC_ERR((TB, "failed to send the switch surface PDU"));
goto SendScreenData;
}
}
else {
// if noOffscreen flag is on, we will bail on sending
// the client any further offscreen rendering. And will send the
// final offscreen to screen blt as regular memblt.
TRC_NRM((TB, "Offscreen blt bail"));
goto SendScreenData;
}
// Send the drawninegrid encoded primary order
if (OEEncodeDrawNineGrid(&bounds, prclSrc, nineGridBitmapId, ppdev, &clipRects)) {
// We added an order to the list, increment global counts.
goto PostSDA;
}
else {
goto SendScreenData;
}
SendScreenData:
if ((psoTrg->hsurf == ppdev->hsurfFrameBuf) ||
(!(pdsurfTrg->flags & DD_NO_OFFSCREEN))) {
// Send a switch surface PDU if the destination surface is different
// from last drawing order. If we failed to send the PDU, we will
// just have to bail on this drawing order.
if (!OESendSwitchSurfacePDU(ppdev, pdsurfTrg)) {
TRC_ERR((TB, "failed to send the switch surface PDU"));
DC_QUIT;
}
}
else {
// If noOffscreen flag is on, we will bail on sending
// the client any further offscreen rendering. And we'll send the
// final offscreen to screen blt as regular memblt.
TRC_NRM((TB, "Offscreen blt bail"));
//INC_OUTCOUNTER(OUT_BITBLT_NOOFFSCR);
DC_QUIT;
}
if (psoTrg->hsurf == ppdev->hsurfFrameBuf) {
//INC_OUTCOUNTER(OUT_BITBLT_SDA);
OEClipAndAddScreenDataArea(&bounds, pco);
}
else {
// if we can't send orders for offscreen rendering, we will
// bail offscreen support for this bitmap
TRC_ALT((TB, "screen data call for offscreen rendering"));
// Remove the bitmap from the offscreen bitmap cache
if (!(pdsurfTrg->flags & DD_NO_OFFSCREEN))
CH_RemoveCacheEntry(sbcOffscreenBitmapCacheHandle,
pdsurfTrg->bitmapId);
DC_QUIT;
}
PostSDA:
SCH_DDOutputAvailable(ppdev, FALSE);
DC_EXIT_POINT:
DC_END_FN();
return rc;
}
#if 0
BOOL DrvDrawStream(
SURFOBJ *psoTrg,
SURFOBJ *psoSrc,
CLIPOBJ *pco,
XLATEOBJ *pxlo,
RECTL *prclTrg,
POINTL *pptlDstOffset,
ULONG ulIn,
PVOID pvIn,
PVOID pvReserved)
{
BOOL rc = TRUE;
SURFOBJ *psoTrgArg;
SURFOBJ *psoSrcArg;
PDD_PDEV ppdev = (PDD_PDEV)psoTrg->dhpdev;
PDD_DSURF pdsurfTrg = NULL;
PDD_DSURF pdsurfSrc = NULL;
RECTL bounds;
OE_ENUMRECTS clipRects;
unsigned drawStreamBitmapId = 0;
unsigned offscrBitmapId = 0;
unsigned RetVal;
DC_BEGIN_FN("DrvDrawStream")
if (ddConnected) {
psoTrgArg = psoTrg;
psoSrcArg = psoSrc;
// Get the GDI format source and destination bitmaps
psoTrg = OEGetSurfObjBitmap(psoTrg, &pdsurfTrg);
if (psoSrc != NULL)
psoSrc = OEGetSurfObjBitmap(psoSrc, &pdsurfSrc);
//DD_UPD_STATE(DD_BITBLT);
//INC_OUTCOUNTER(OUT_BITBLT_ALL);
// Punt the call back to GDI to do the drawing.
rc = EngDrawStream(psoTrg, psoSrc, pco, pxlo, prclTrg, pptlDstOffset,
ulIn, pvIn, pvReserved);
if (rc) {
// If ppdev is NULL then this is a blt to GDI managed memory bitmap,
// so there is no need to accumulate any output.
if (ppdev != NULL) {
// The following is true for DrvBitBlt, need to find out for Get
// the bounding rectangle for the operation. According to
// the DDK, this rectangle is always well-ordered and does not
// need to be rearranged.
// Clip it to 16 bits.
bounds = *prclTrg;
OEClipRect(&bounds);
}
else {
// if ppdev is NULL, we are blt to GDI managed bitmap,
// so, the dhurf of the target surface should be NULL
TRC_ASSERT((pdsurfTrg == NULL),
(TB, "NULL ppdev - psoTrg has non NULL dhsurf"));
TRC_NRM((TB, "NULL ppdev - blt to GDI managed bitmap"));
DC_QUIT;
}
}
else {
TRC_ERR((TB, "EngBitBlt failed"));
DC_QUIT;
}
}
else {
if (psoTrg->iType == STYPE_DEVBITMAP) {
psoTrg = OEGetSurfObjBitmap(psoTrg, &pdsurfTrg);
if (psoSrc != NULL)
psoSrc = OEGetSurfObjBitmap(psoSrc, &pdsurfSrc);
// Punt the call back to GDI to do the drawing.
rc = EngDrawStream(psoTrg, psoSrc, pco, pxlo, prclTrg, pptlDstOffset,
ulIn, pvIn, pvReserved);
}
else {
TRC_ERR((TB, "Called when disconnected"));
rc = TRUE;
}
DC_QUIT;
}
if (!((psoTrg->hsurf == ppdev->hsurfFrameBuf) ||
(!(pdsurfTrg->flags & DD_NO_OFFSCREEN)))) {
// If noOffscreen flag is on, we will bail on sending
// the client any further offscreen rendering. And we'll send the
// final offscreen to screen blt as regular memblt.
TRC_NRM((TB, "Offscreen blt bail"));
//INC_OUTCOUNTER(OUT_BITBLT_NOOFFSCR);
DC_QUIT;
}
// Get the intersection between the dest rect and the
// clip rects. Check for overcomplicated or nonintersecting
// clipping.
RetVal = OEGetIntersectingClipRects(pco, &bounds, CD_ANY,
&clipRects);
if (RetVal == CLIPRECTS_TOO_COMPLEX) {
TRC_NRM((TB, "Clipping is too complex"));
//INC_OUTCOUNTER(OUT_BITBLT_SDA_COMPLEXCLIP);
//if (oeLastDstSurface == NULL)
// ADD_INCOUNTER(IN_SDA_BITBLT_COMPLEXCLIP_AREA,
// COM_SIZEOF_RECT(bounds));
goto SendScreenData;
}
else if (RetVal == CLIPRECTS_NO_INTERSECTIONS) {
TRC_NRM((TB, "Clipping does not intersect destrect"));
DC_QUIT;
}
// Cache the source bitmap
TRC_ASSERT((psoSrcArg->iUniq != 0), (TB, "Source bitmap should be cachable"));
// For the source bitmap
//
// Case 1: This is an RDP managed device bitmap and the bitmap
// is still cached at the client and we can just use the bitmapId
//
// Case 2: This is an RDP managed device bitmap, but no longer
// cached at the client side
//
// Case 3: This is a GDI managed bitmap
//
// For case 2 and 3, we need to cache the bitmap first
//
if (pdsurfSrc != NULL) {
if ((pddShm->sbc.offscreenCacheInfo.supportLevel > TS_OFFSCREEN_DEFAULT) &&
(sbcEnabled & SBC_OFFSCREEN_CACHE_ENABLED)) {
if (pdsurfSrc->shareId == pddShm->shareId) {
// The client has the offscreen bitmap in cache
if (!(pdsurfSrc->flags & DD_NO_OFFSCREEN)) {
offscrBitmapId = pdsurfSrc->bitmapId;
CH_TouchCacheEntry(sbcOffscreenBitmapCacheHandle,
offscrBitmapId);
}
else {
// If the source surface is offscreen surface, and we
// have the noOffscreen flag on, this means we will
// send the bitmap bits as regular memory bitmap bits
// This means that the offscreen bitmap has been evicted
// out of the offscreen cache or screen data needs to be
// sent for the offscreen bitmap
TRC_ALT((TB, "noOffscreen flag is on for %p", pdsurfSrc));
offscrBitmapId = CH_KEY_UNCACHABLE;
}
}
else {
// This is the stale offscreen bitmap from last disconnected
// session. We need to turn off the offscreen flag on this
TRC_ALT((TB, "Need to turn off this offscreen bitmap"));
pdsurfSrc->flags |= DD_NO_OFFSCREEN;
offscrBitmapId = CH_KEY_UNCACHABLE;
}
}
else {
// These are offscreen bitmaps from the disconnected session
// or client has sent an error pdu,
// We have to treat them as memory bitmap now since the client
// doesn't have the offscreen bitmap locally
TRC_ALT((TB, "Need to turn off this offscreen bitmap"));
pdsurfSrc->flags |= DD_NO_OFFSCREEN;
offscrBitmapId = CH_KEY_UNCACHABLE;
}
}
else {
if ((pddShm->sbc.offscreenCacheInfo.supportLevel > TS_OFFSCREEN_DEFAULT) &&
(sbcEnabled & SBC_OFFSCREEN_CACHE_ENABLED)) {
offscrBitmapId = CH_KEY_UNCACHABLE;
}
else {
TRC_NRM((TB, "No offscreen support, can't support draw stream"));
goto SendScreenData;
}
}
// Need to create an offscreen
if (offscrBitmapId == CH_KEY_UNCACHABLE) {
MEMBLT_ORDER_EXTRA_INFO MemBltExtraInfo;
POINTL ptlSrc;
CHDataKeyContext CHContext;
void *UserDefined;
drawStreamBitmapId = CH_KEY_UNCACHABLE;
CH_CreateKeyFromFirstData(&CHContext, psoSrc->pvBits, psoSrc->cjBits);
if (!CH_SearchCache(sbcDrawStreamBitmapCacheHandle, CHContext.Key1, CHContext.Key2,
&UserDefined, &drawStreamBitmapId)) {
drawStreamBitmapId = CH_CacheKey(
sbcDrawStreamBitmapCacheHandle,
CHContext.Key1, CHContext.Key2,
NULL);
if (drawStreamBitmapId != CH_KEY_UNCACHABLE) {
unsigned BitmapRawSize;
unsigned BitmapBufferSize;
unsigned BitmapCompSize;
unsigned BitmapBpp;
SIZEL size;
PBYTE BitmapBuffer;
PBYTE BitmapRawBuffer;
PINT_ORDER pOrder = NULL;
unsigned paddedBitmapWidth;
HSURF hWorkBitmap;
SURFOBJ *pWorkSurf;
BOOL rc;
BitmapBuffer = oeTempBitmapBuffer;
BitmapBufferSize = TS_MAX_STREAM_BITMAP_SIZE;
// Convert to the protocol wire bitmap bpp format
switch (psoSrc->iBitmapFormat)
{
case BMF_16BPP:
BitmapBpp = 16;
break;
case BMF_24BPP:
BitmapBpp = 24;
break;
case BMF_32BPP:
BitmapBpp = 32;
break;
default:
BitmapBpp = 8;
}
paddedBitmapWidth = (psoSrc->sizlBitmap.cx + 3) & ~3;
size.cx = paddedBitmapWidth;
size.cy = psoSrc->sizlBitmap.cy;
// We need to copy to a worker bitmap if the bitmap width is
// not dword aligned, or the color depth is not 32bpp and
// doesn't match the frame buffer color depth
if (paddedBitmapWidth != psoSrc->sizlBitmap.cx ||
(psoSrc->iBitmapFormat != ppdev->iBitmapFormat &&
psoSrc->iBitmapFormat != BMF_32BPP)) {
RECTL rect;
POINTL origin;
rect.left = 0;
rect.top = 0;
rect.right = paddedBitmapWidth;
rect.bottom = psoSrc->sizlBitmap.cy;
origin.x = 0;
origin.y = 0;
hWorkBitmap = (HSURF)EngCreateBitmap(size,
TS_BYTES_IN_SCANLINE(size.cx, BitmapBpp),
psoSrc->iBitmapFormat, 0, NULL);
pWorkSurf = EngLockSurface(hWorkBitmap);
if (EngCopyBits(pWorkSurf, psoSrc, NULL, NULL, &rect, &origin)) {
BitmapRawSize = pWorkSurf->cjBits;
BitmapRawBuffer = pWorkSurf->pvBits;
rc = BC_CompressBitmap(BitmapRawBuffer, BitmapBuffer, BitmapBufferSize,
&BitmapCompSize, paddedBitmapWidth, psoSrc->sizlBitmap.cy,
BitmapBpp);
EngUnlockSurface(pWorkSurf);
EngDeleteSurface(hWorkBitmap);
}
else {
EngUnlockSurface(pWorkSurf);
EngDeleteSurface(hWorkBitmap);
goto SendScreenData;
}
EngUnlockSurface(pWorkSurf);
EngDeleteSurface(hWorkBitmap);
}
else {
BitmapRawSize = psoSrc->cjBits;
BitmapRawBuffer = psoSrc->pvBits;
rc = BC_CompressBitmap(BitmapRawBuffer, BitmapBuffer, BitmapBufferSize,
&BitmapCompSize, paddedBitmapWidth, psoSrc->sizlBitmap.cy,
BitmapBpp);
}
if (rc) {
if (!OESendStreamBitmapOrder(ppdev, TS_DRAW_NINEGRID_BITMAP_CACHE, &size,
BitmapBpp, BitmapBuffer, BitmapCompSize, TRUE)) {
goto SendScreenData;
}
}
else {
// Send uncompressed bitmap
if (!OESendStreamBitmapOrder(ppdev, TS_DRAW_NINEGRID_BITMAP_CACHE, &size,
BitmapBpp, BitmapRawBuffer, BitmapRawSize, FALSE))
{
goto SendScreenData;
}
}
// send a create drawStream bitmap pdu
if (OESendCreateDrawStreamOrder(ppdev,drawStreamBitmapId,
&(psoSrc->sizlBitmap), BitmapBpp)) {
// Update the current offscreen cache size
//oeCurrentOffscreenCacheSize += bitmapSize;
TRC_NRM((TB, "Created an offscreen bitmap"));
}
else {
TRC_ERR((TB, "Failed to send the create bitmap pdu"));
CH_RemoveCacheEntry(
sbcDrawStreamBitmapCacheHandle, drawStreamBitmapId);
goto SendScreenData;
}
}
else {
TRC_ERR((TB, "Failed to cache the bitmap"));
goto SendScreenData;
}
#if 0
if (!OESendSwitchSurfacePDU(ppdev, (PDD_DSURF)(&drawStreamBitmapId), DRAW_STREAM_SURFACE)) {
TRC_ERR((TB, "failed to send the switch surface PDU"));
goto SendScreenData;
}
// Fill in extra info structure.
MemBltExtraInfo.pSource = psoSrc;
MemBltExtraInfo.pDest = psoSrc;
MemBltExtraInfo.pXlateObj = NULL;
MemBltExtraInfo.bNoFastPathCaching = FALSE;
MemBltExtraInfo.iDeviceUniq = psoSrcArg ? (psoSrcArg->iUniq) : 0;
ptlSrc.x = 0;
ptlSrc.y = 0;
// Make sure orders are not turned off.
if (OE_SendAsOrder(TS_ENC_MEMBLT_R2_ORDER)) {
RECTL srcBound;
OE_ENUMRECTS srcClipRect;
// Get the intersection rect.
srcBound.left = 0;
srcBound.top = 0;
srcBound.right = psoSrc->sizlBitmap.cx;
srcBound.bottom = psoSrc->sizlBitmap.cy;
srcClipRect.rects.c = 1;
srcClipRect.rects.arcl[0] = srcBound;
if (!OEEncodeMemBlt(&srcBound, &MemBltExtraInfo,
TS_ENC_MEMBLT_R2_ORDER, CH_KEY_UNCACHABLE,
0xCC, &ptlSrc, NULL, NULL, ppdev,
&srcClipRect)) {
//if (oeLastDstSurface == NULL)
// ADD_INCOUNTER(IN_SDA_MEMBLT_AREA,
// COM_SIZEOF_RECT(bounds));
goto SendScreenData;
}
}
else {
TRC_NRM((TB, "MemBlt order not allowed"));
//INC_OUTCOUNTER(OUT_BITBLT_SDA_UNSUPPORTED);
goto SendScreenData;
}
#endif
}
else {
//DrvDebugPrint("JOYC: drawstream source already cached\n");
}
}
else {
// The client already has the bitmap cached in offscreen bitmap cache
//DrvDebugPrint("JOYC: offscreen already cached!\n");
}
if ((psoTrg->hsurf == ppdev->hsurfFrameBuf) ||
(!(pdsurfTrg->flags & DD_NO_OFFSCREEN))) {
// Send a switch surface PDU if the destination surface is different
// from last drawing order. If we failed to send the PDU, we will
// just have to bail on this drawing order.
if (!OESendSwitchSurfacePDU(ppdev, pdsurfTrg, 0)) {
TRC_ERR((TB, "failed to send the switch surface PDU"));
goto SendScreenData;
}
}
else {
// if noOffscreen flag is on, we will bail on sending
// the client any further offscreen rendering. And will send the
// final offscreen to screen blt as regular memblt.
TRC_NRM((TB, "Offscreen blt bail"));
goto SendScreenData;
}
// Send the drawstream bits, first round sending as secondary order
if (OESendDrawStreamOrder(ppdev, drawStreamBitmapId, ulIn, pvIn, pptlDstOffset,
&bounds, &clipRects)) {
//DrvDebugPrint("JOYC: Send DrawStream Order\n");
// We added an order to the list, increment global counts.
goto PostSDA;
}
else {
goto SendScreenData;
}
SendScreenData:
DrvDebugPrint("JOYC: DrawStream using SendScreenData\n");
if ((psoTrg->hsurf == ppdev->hsurfFrameBuf) ||
(!(pdsurfTrg->flags & DD_NO_OFFSCREEN))) {
// Send a switch surface PDU if the destination surface is different
// from last drawing order. If we failed to send the PDU, we will
// just have to bail on this drawing order.
if (!OESendSwitchSurfacePDU(ppdev, pdsurfTrg, 0)) {
TRC_ERR((TB, "failed to send the switch surface PDU"));
DC_QUIT;
}
}
else {
// If noOffscreen flag is on, we will bail on sending
// the client any further offscreen rendering. And we'll send the
// final offscreen to screen blt as regular memblt.
TRC_NRM((TB, "Offscreen blt bail"));
//INC_OUTCOUNTER(OUT_BITBLT_NOOFFSCR);
DC_QUIT;
}
if (psoTrg->hsurf == ppdev->hsurfFrameBuf) {
//INC_OUTCOUNTER(OUT_BITBLT_SDA);
OEClipAndAddScreenDataArea(&bounds, pco);
}
else {
// if we can't send orders for offscreen rendering, we will
// bail offscreen support for this bitmap
TRC_ALT((TB, "screen data call for offscreen rendering"));
// Remove the bitmap from the offscreen bitmap cache
if (!(pdsurfTrg->flags & DD_NO_OFFSCREEN))
CH_RemoveCacheEntry(sbcOffscreenBitmapCacheHandle,
pdsurfTrg->bitmapId);
DC_QUIT;
}
PostSDA:
SCH_DDOutputAvailable(ppdev, FALSE);
DC_EXIT_POINT:
DC_END_FN();
return rc;
}
#endif
#endif //DRAW_NINEGRID
#ifdef DRAW_GDIPLUS
// DrawGdiPlus
ULONG DrawGdiPlus(
IN SURFOBJ *pso,
IN ULONG iEsc,
IN CLIPOBJ *pco,
IN RECTL *prcl,
IN ULONG cjIn,
IN PVOID pvIn)
{
SURFOBJ *psoTrgArg;
SURFOBJ *psoSrcArg;
PDD_PDEV ppdev = (PDD_PDEV)pso->dhpdev;
PDD_DSURF pdsurf = NULL;
BOOL rc = TRUE;
DC_BEGIN_FN("DrawGdiplus");
// The callers should check this. Asserting they do.
TRC_ASSERT((pddShm != NULL),(TB, "DrawGdiPlus called when pddShm is NULL"))
// Sometimes, we're called after being disconnected.
if (ddConnected) {
// Surface is non-NULL.
pso = OEGetSurfObjBitmap(pso, &pdsurf);
if ((pso->hsurf == ppdev->hsurfFrameBuf) ||
(!(pdsurf->flags & DD_NO_OFFSCREEN))) {
// Send a switch surface PDU if the destination surface is
// different from last drawing order. If we failed to send the
// PDU, we will just have to bail on this drawing order.
if (!OESendSwitchSurfacePDU(ppdev, pdsurf)) {
TRC_ERR((TB, "failed to send the switch surface PDU"));
DC_QUIT;
}
} else {
// if noOffscreen flag is on, we will bail on sending
// the client any further offscreen rendering. And will send the final
// offscreen to screen blt as regular memblt.
TRC_NRM((TB, "Offscreen blt bail"));
DC_QUIT;
}
} else {
TRC_ERR((TB, "Called when disconnected"));
DC_QUIT;
}
// Create and Send DrawGdiplus Order
if (OECreateDrawGdiplusOrder(ppdev, prcl, cjIn, pvIn)) {
goto PostSDA;
}
// Send screen data when OECreateDrawGdiplusOrder fails
OEClipAndAddScreenDataArea(prcl, NULL);
PostSDA:
// All done: consider sending the output.
SCH_DDOutputAvailable(ppdev, FALSE);
DC_EXIT_POINT:
DC_END_FN();
return rc;
}
/****************************************************************************/
// DrvDrawEscape - see NT DDK documentation.
/****************************************************************************/
ULONG DrvDrawEscape(
IN SURFOBJ *pso,
IN ULONG iEsc,
IN CLIPOBJ *pco,
IN RECTL *prcl,
IN ULONG cjIn,
IN PVOID pvIn)
{
PDD_PDEV ppdev = (PDD_PDEV)pso->dhpdev;
DC_BEGIN_FN("DrvDrawEscape");
TRC_NRM((TB, "DrvDrawEscape %d", iEsc));
switch (iEsc) {
case GDIPLUS_TS_QUERYVER:
// Query the gdiplus version
// DDraw only support 8, 16, 24, 32 bpp
if ((ppdev->cClientBitsPerPel != 8) &&
(ppdev->cClientBitsPerPel != 16) &&
(ppdev->cClientBitsPerPel != 24) &&
(ppdev->cClientBitsPerPel != 32)) {
TRC_ERR((TB, "The DDrawColor does not support the color depth %d",
ppdev->cClientBitsPerPel));
return 0;
}
if (ppdev->SectionObject == NULL) {
TRC_ERR((TB, "The section memory is not allocated"));
return 0;
}
if (pddShm == NULL) {
TRC_ERR((TB, "The pddShm is NULL"));
return 0;
}
if (pddShm->sbc.drawGdiplusInfo.supportLevel > TS_DRAW_GDIPLUS_DEFAULT) {
TRC_NRM((TB, "Gdiplus version is %d", pddShm->sbc.drawGdiplusInfo.GdipVersion));
return pddShm->sbc.drawGdiplusInfo.GdipVersion;
}
else {
TRC_ERR((TB, "TSDrawGdip not supported"));
return 0;
}
break;
case GDIPLUS_TS_RECORD:
// Send out the Gdiplus EMF+ record
// DDraw only support 8, 16, 24, 32 bpp
if ((ppdev->cClientBitsPerPel != 8) &&
(ppdev->cClientBitsPerPel != 16) &&
(ppdev->cClientBitsPerPel != 24) &&
(ppdev->cClientBitsPerPel != 32)) {
TRC_ERR((TB, "The DDrawColor does not support the color depth %d",
ppdev->cClientBitsPerPel));
return 0;
}
if (pddShm == NULL) {
TRC_ERR((TB, "The pddShm is NULL !"));
return 0;
}
if (ppdev->SectionObject == NULL) {
TRC_ERR((TB, "Called when Gdiplus is not supported!"));
return 0;
}
if (pddShm->sbc.drawGdiplusInfo.supportLevel > TS_DRAW_GDIPLUS_DEFAULT) {
TRC_ASSERT((pvIn != NULL), (TB, "DrvDrawEscape gets NULL data"))
TRC_ASSERT((cjIn != 0), (TB, "DrvDrawEscape gets data with size 0"))
return DrawGdiPlus(pso, iEsc, pco, prcl, cjIn, pvIn);
}
else {
TRC_ERR((TB, "TSDrawGdip not supported"));
return 0;
}
default :
TRC_ERR((TB, "DrvDrawEscape %d not supported", iEsc));
return 0;
}
DC_END_FN()
}
#endif // DRAW_GDIPLUS
/****************************************************************************/
// DrvTextOut - see NT DDK documentation.
/****************************************************************************/
BOOL RDPCALL DrvTextOut(
SURFOBJ *pso,
STROBJ *pstro,
FONTOBJ *pfo,
CLIPOBJ *pco,
RECTL *prclExtra,
RECTL *prclOpaque,
BRUSHOBJ *pboFore,
BRUSHOBJ *pboOpaque,
POINTL *pptlOrg,
MIX mix)
{
BOOL rc;
RECTL rectTrg;
PDD_PDEV ppdev = (PDD_PDEV)pso->dhpdev;
PDD_DSURF pdsurf = NULL;
PFONTCACHEINFO pfci;
OE_ENUMRECTS ClipRects;
DC_BEGIN_FN("DrvTextOut");
rc = TRUE;
// Sometimes, we're called after being disconnected.
if (ddConnected && pddShm != NULL) {
// Surface is non-NULL.
pso = OEGetSurfObjBitmap(pso, &pdsurf);
INC_OUTCOUNTER(OUT_TEXTOUT_ALL);
if (((pco == NULL) && (pso->sizlBitmap.cx >= prclOpaque->right) &&
(pso->sizlBitmap.cy >= prclOpaque->bottom)) ||
((pco != NULL) && (pso->sizlBitmap.cx >= pco->rclBounds.right) &&
(pso->sizlBitmap.cy >= pco->rclBounds.bottom))) {
// Let GDI to do the local drawing.
rc = EngTextOut(pso, pstro, pfo, pco, prclExtra, prclOpaque, pboFore,
pboOpaque, pptlOrg, mix);
}
else {
// If the bounding rectangle is greater the frame buffer, something
// is really wrong here. This means the desktop surface size and
// the framebuffer is not matched up. We need to bail out here.
rc = FALSE;
}
if (rc) {
if ((pso->hsurf == ppdev->hsurfFrameBuf) ||
(!(pdsurf->flags & DD_NO_OFFSCREEN))) {
// Send a switch surface PDU if the destination surface is different
// from last drawing order. If we failed to send the PDU, we will
// just have to bail on this drawing order.
if (!OESendSwitchSurfacePDU(ppdev, pdsurf)) {
TRC_ERR((TB, "failed to send the switch surface PDU"));
DC_QUIT;
}
} else {
// if noOffscreen flag is on, we will bail on sending the
// client any further offscreen rendering. And will send the
// final offscreen to screen blt as regular memblt.
TRC_NRM((TB, "Offscreen blt bail"));
DC_QUIT;
}
// Check we have a valid string.
if (pstro->pwszOrg != NULL) {
if (OEGetClipRects(pco, &ClipRects)) {
// Special case when the clipobj is not correct.
// When rdpdd is used as a mirroring driver the Mul layer
// will modify the CLIPOBJ and in some cases we get a complex
// CLIPOBJ but the enumeration gives no rectangles.
// If it happens then don't draw anything.
// We test only the DC_COMPLEX case because in that case we
// are supposed to always get at least one rect.
// If it's DC_RECT we always have one rect without enumeration,
// so no need to test it (see OEGetClipRects).
// If it's DC_TRIVIAL we have to draw it, so don't test it.
if ((pco != NULL) &&
(pco->iDComplexity == DC_COMPLEX) &&
(ClipRects.rects.c == 0)) {
TRC_NRM((TB, "Complex CLIPOBJ without any rects"));
DC_QUIT;
}
// Check that we don't have any modifier rects on the
// font.
if (prclExtra == NULL) {
// Get a ptr to this font's cached information.
pfci = OEGetFontCacheInfo(pfo);
if (pfci == NULL) {
TRC_NRM((TB, "Cannot allocate font cache info "
"struct"));
INC_OUTCOUNTER(OUT_TEXTOUT_SDA_NOFCI);
goto SendAsSDA;
}
}
else {
TRC_NRM((TB, "Unsupported rects"));
INC_OUTCOUNTER(OUT_TEXTOUT_SDA_EXTRARECTS);
goto SendAsSDA;
}
}
else {
TRC_NRM((TB, "Clipping is too complex"));
INC_OUTCOUNTER(OUT_TEXTOUT_SDA_COMPLEXCLIP);
goto SendAsSDA;
}
}
else {
TRC_NRM((TB, "No string - opaque %p", prclOpaque));
INC_OUTCOUNTER(OUT_TEXTOUT_SDA_NOSTRING);
goto SendAsSDA;
}
}
else {
TRC_ERR((TB, "EngTextOut failed"));
DC_QUIT;
}
}
else {
if (pso->iType == STYPE_DEVBITMAP) {
pso = OEGetSurfObjBitmap(pso, &pdsurf);
// Let GDI to do the local drawing.
rc = EngTextOut(pso, pstro, pfo, pco, prclExtra, prclOpaque, pboFore,
pboOpaque, pptlOrg, mix);
}
else {
TRC_ERR((TB, "Called when disconnected"));
}
goto CalledOnDisconnected;
}
// Process the request according to the glyph support level setting
// we can attempt to send a Glyph order
if (pddShm->sbc.caps.GlyphSupportLevel >= CAPS_GLYPH_SUPPORT_PARTIAL) {
if (OE_SendGlyphs(pso, pstro, pfo, &ClipRects, prclOpaque, pboFore,
pboOpaque, pptlOrg, pfci))
goto PostSDA;
}
SendAsSDA:
// We reach here in the case we could not send for some reason.
// Accumulate in screen data area.
if (pso->hsurf == ppdev->hsurfFrameBuf) {
INC_OUTCOUNTER(OUT_TEXTOUT_SDA);
// Get bounding rectangle, convert to a RECT, and convert to
// inclusive coordinates.
if (prclOpaque != NULL) {
RECT_FROM_RECTL(rectTrg, (*prclOpaque));
} else {
RECT_FROM_RECTL(rectTrg, pstro->rclBkGround);
TRC_DBG((TB, "Using STROBJ bgd for size"));
}
OEClipRect(&rectTrg);
ADD_INCOUNTER(IN_SDA_TEXTOUT_AREA, COM_SIZEOF_RECT(rectTrg));
// Output to SDA
OEClipAndAddScreenDataArea(&rectTrg, pco);
}
else {
// If we can't send orders for offscreen rendering, we will
// bail offscreen support for this bitmap.
TRC_ALT((TB, "screen data call for offscreen rendering"));
if (!(pdsurf->flags & DD_NO_OFFSCREEN))
CH_RemoveCacheEntry(sbcOffscreenBitmapCacheHandle,
pdsurf->bitmapId);
DC_QUIT;
}
PostSDA:
// All done: consider sending the output.
SCH_DDOutputAvailable(ppdev, FALSE);
CalledOnDisconnected:
DC_EXIT_POINT:
DC_END_FN();
return rc;
}
/****************************************************************************/
// DrvDestroyFont - see NT DDK documentation.
/****************************************************************************/
VOID DrvDestroyFont(FONTOBJ *pfo)
{
FONTCACHEINFO *pfci;
DC_BEGIN_FN("DrvDestroyFont");
pfci = pfo->pvConsumer;
if (pfci != NULL) {
if (pddShm != NULL && pfci->cacheHandle)
pddShm->sbc.glyphCacheInfo[pfci->cacheId].cbUseCount--;
if (sbcFontCacheInfoList != NULL &&
sbcFontCacheInfoList[pfci->listIndex] == pfci) {
sbcFontCacheInfoList[pfci->listIndex] = NULL;
}
EngFreeMem(pfci);
pfo->pvConsumer = NULL;
}
DC_END_FN();
}
/****************************************************************************/
// DrvLineTo - see NT DDK documentation.
/****************************************************************************/
BOOL RDPCALL DrvLineTo(
SURFOBJ *pso,
CLIPOBJ *pco,
BRUSHOBJ *pbo,
LONG x1,
LONG y1,
LONG x2,
LONG y2,
RECTL *prclBounds,
MIX mix)
{
PDD_PDEV ppdev = (PDD_PDEV)pso->dhpdev;
PDD_DSURF pdsurf = NULL;
BOOL rc = TRUE;
RECTL rectTrg;
POINTL startPoint;
POINTL endPoint;
OE_ENUMRECTS ClipRects;
DC_BEGIN_FN("DrvLineTo");
// Sometimes, we're called after being disconnected.
if (ddConnected && pddShm != NULL) {
// Surface is non-NULL.
pso = OEGetSurfObjBitmap(pso, &pdsurf);
INC_OUTCOUNTER(OUT_LINETO_ALL);
// Get bounding rectangle and clip to 16-bit wire size.
RECT_FROM_RECTL(rectTrg, (*prclBounds));
OEClipRect(&rectTrg);
// Punt the call back to GDI to do the drawing.
rc = EngLineTo(pso, pco, pbo, x1, y1, x2, y2, prclBounds, mix);
if (rc) {
if ((pso->hsurf == ppdev->hsurfFrameBuf) ||
(!(pdsurf->flags & DD_NO_OFFSCREEN))) {
// Send a switch surface PDU if the destination surface is
// different from last drawing order. If we failed to send the
// PDU, we will just have to bail on this drawing order.
if (!OESendSwitchSurfacePDU(ppdev, pdsurf)) {
TRC_ERR((TB, "failed to send the switch surface PDU"));
DC_QUIT;
}
} else {
// if noOffscreen flag is on, we will bail on sending
// the client any further offscreen rendering. And will send the final
// offscreen to screen blt as regular memblt.
TRC_NRM((TB, "Offscreen blt bail"));
DC_QUIT;
}
TRC_NRM((TB, "LINETO"));
}
else {
TRC_ERR((TB, "EngLineTo failed"));
DC_QUIT;
}
}
else {
if (pso->iType == STYPE_DEVBITMAP) {
// Surface is non-NULL.
pso = OEGetSurfObjBitmap(pso, &pdsurf);
// Punt the call back to GDI to do the drawing.
rc = EngLineTo(pso, pco, pbo, x1, y1, x2, y2, prclBounds, mix);
}
else {
TRC_ERR((TB, "Called when disconnected"));
}
goto CalledOnDisconnect;
}
// Check if we are allowed to send this order.
if (OE_SendAsOrder(TS_ENC_LINETO_ORDER)) {
// Check for a solid brush required for the order.
if (pbo->iSolidColor != -1) {
unsigned RetVal;
// Get the intersection between the dest rect and the
// clip rects. Check for overcomplicated or nonintersecting
// clipping.
RetVal = OEGetIntersectingClipRects(pco, &rectTrg,
CD_ANY, &ClipRects);
if (RetVal == CLIPRECTS_OK) {
// Set up data for order.
startPoint.x = x1;
startPoint.y = y1;
endPoint.x = x2;
endPoint.y = y2;
}
else if (RetVal == CLIPRECTS_TOO_COMPLEX) {
TRC_NRM((TB, "Clipping is too complex"));
INC_OUTCOUNTER(OUT_LINETO_SDA_COMPLEXCLIP);
goto SendAsSDA;
}
else if (RetVal == CLIPRECTS_NO_INTERSECTIONS) {
TRC_NRM((TB, "Clipping does not intersect destrect"));
DC_QUIT;
}
}
else {
TRC_NRM((TB, "Bad brush for line"));
INC_OUTCOUNTER(OUT_LINETO_SDA_BADBRUSH);
goto SendAsSDA;
}
}
else {
TRC_NRM((TB, "LineTo order not allowed"));
INC_OUTCOUNTER(OUT_LINETO_SDA_UNSUPPORTED);
goto SendAsSDA;
}
// Store the order.
if (OEEncodeLineToOrder(ppdev, &startPoint, &endPoint, mix & 0x1F,
pbo->iSolidColor, &ClipRects)) {
goto PostSDA;
}
else {
TRC_DBG((TB, "Failed to add order - use SDA"));
INC_OUTCOUNTER(OUT_LINETO_SDA_FAILEDADD);
goto SendAsSDA;
}
SendAsSDA:
// If we got here we could not send as an order, send as screen data
// instead.
if (pso->hsurf == ppdev->hsurfFrameBuf) {
INC_OUTCOUNTER(OUT_LINETO_SDA);
ADD_INCOUNTER(IN_SDA_LINETO_AREA, COM_SIZEOF_RECT(rectTrg));
OEClipAndAddScreenDataArea(&rectTrg, pco);
}
else {
// if we can't send orders for offscreen rendering, we will
// bail offscreen support for this bitmap
TRC_ALT((TB, "screen data call for offscreen rendering"));
if (!(pdsurf->flags & DD_NO_OFFSCREEN))
CH_RemoveCacheEntry(sbcOffscreenBitmapCacheHandle, pdsurf->bitmapId);
DC_QUIT;
}
PostSDA:
// Have the scheduler consider flushing output.
SCH_DDOutputAvailable(ppdev, FALSE);
CalledOnDisconnect:
DC_EXIT_POINT:
DC_END_FN();
return rc;
}
/****************************************************************************/
// OEEmitReplayOrders
//
// Direct-encodes a series of replay-last primary orders.
/****************************************************************************/
BOOL OEEmitReplayOrders(
PDD_PDEV ppdev,
unsigned NumFieldFlagBytes,
OE_ENUMRECTS *pClipRects)
{
BOOL rc = TRUE;
BYTE *pBuffer;
unsigned i;
unsigned NumRects;
PINT_ORDER pOrder;
DC_BEGIN_FN("OEEmitReplayOrders");
// Since the first order took the first rect, emit replay orders for the
// remaining rects.
NumRects = pClipRects->rects.c;
for (i = 1; i < NumRects; i++) {
pOrder = OA_AllocOrderMem(ppdev, MAX_REPLAY_CLIPPED_ORDER_SIZE);
if (pOrder != NULL) {
pBuffer = pOrder->OrderData;
// Control flags are primary order plus all field flag bytes zero.
*pBuffer++ = TS_STANDARD | TS_BOUNDS |
(NumFieldFlagBytes << TS_ZERO_FIELD_COUNT_SHIFT);
// Construct the new bounds rect just after this.
OE2_EncodeBounds(pBuffer - 1, &pBuffer,
&pClipRects->rects.arcl[i]);
pOrder->OrderLength = (unsigned)(pBuffer - pOrder->OrderData);
INC_INCOUNTER(IN_REPLAY_ORDERS);
ADD_INCOUNTER(IN_REPLAY_BYTES, pOrder->OrderLength);
OA_AppendToOrderList(pOrder);
TRC_DBG((TB,"Emit replay order for cliprect (%d,%d,%d,%d)",
pClipRects->rects.arcl[i].left,
pClipRects->rects.arcl[i].top,
pClipRects->rects.arcl[i].right,
pClipRects->rects.arcl[i].bottom));
}
else {
TRC_ERR((TB,"Error allocating mem for replay order"));
rc = FALSE;
break;
}
}
DC_END_FN();
return rc;
}
/****************************************************************************/
// DrvStrokePath - see NT DDK documentation.
/****************************************************************************/
// Worker function - encodes a delta from one point to another in a minimal
// form in the PolyLine coded delta list. The encoding follows the
// following rules:
// 1. If a coordinate delta is zero, a flag is set saying so. This
// closely follows the data distribution which tends to have vertical
// and horizontal lines and so have a lot of zero deltas.
// 2. If we can pack the delta into 7 bits, do so, with the high bit
// cleared. This is similar to ASN.1 PER encoding; the high bit is a
// flag telling us whether the encoding is long.
// 3. Otherwise, we must be able to pack into 15 bits (fail if not);
// do so and set the high-order bit to indicate this is a long
// encoding. This differs from ASN.1 PER encoding in that we don't
// allow more than 15 bits of data.
BOOL OEEncodePolyLinePointDelta(
BYTE **ppCurEncode,
unsigned *pNumDeltas,
unsigned *pDeltaSize,
BYTE *ZeroFlags,
POINTL *pFromPoint,
POINTL *pToPoint,
RECTL *pBoundRect)
{
int Delta;
BYTE Zeros = 0;
BYTE *pBuffer;
unsigned EncodeLen;
DC_BEGIN_FN("OEEncodePolyLinePointDelta");
pBuffer = *ppCurEncode;
Delta = pToPoint->x - pFromPoint->x;
if (Delta == 0) {
EncodeLen = 0;
Zeros |= ORD_POLYLINE_XDELTA_ZERO;
}
else if (Delta >= -64 && Delta <= 63) {
*pBuffer++ = (BYTE)(Delta & 0x7F);
EncodeLen = 1;
}
else {
// This is ugly, but necessitated by some stress-type apps that
// will send us a large coordinate and expect us to clip it. In an
// ideal world we would actually clip the line coordinates to the
// clip rectangle given us in DrvStrokePath and recalc the deltas
// based on the new line endpoints. However, since no normal apps
// seem to send these bad lines, we simply clip the delta and hope
// the slope of the resulting line is similar to the slope from the
// original delta.
if (Delta >= -16384 && Delta <= 16384) {
*pBuffer++ = (BYTE)((Delta >> 8) | ORD_POLYLINE_LONG_DELTA);
*pBuffer++ = (BYTE)(Delta & 0xFF);
EncodeLen = 2;
}
else {
TRC_ALT((TB,"X delta %d too large/small to encode", Delta));
return FALSE;
}
}
Delta = pToPoint->y - pFromPoint->y;
if (Delta == 0) {
Zeros |= ORD_POLYLINE_YDELTA_ZERO;
}
else if (Delta >= -64 && Delta <= 63) {
*pBuffer++ = (BYTE)(Delta & 0x7F);
EncodeLen += 1;
}
else {
// See comments for the similar code above.
if (Delta >= -16384 && Delta <= 16384) {
*pBuffer++ = (BYTE)((Delta >> 8) | ORD_POLYLINE_LONG_DELTA);
*pBuffer++ = (BYTE)(Delta & 0xFF);
EncodeLen += 2;
}
else {
TRC_ALT((TB,"Y delta %d too large/small to encode", Delta));
return FALSE;
}
}
// Set the zero flags by shifting the two bits we've accumulated.
ZeroFlags[(*pNumDeltas / 4)] |= (Zeros >> (2 * (*pNumDeltas & 0x03)));
*pNumDeltas += 1;
*pDeltaSize += EncodeLen;
*ppCurEncode = pBuffer;
// Update the bounding rect (exclusive coords).
if (pToPoint->x < pBoundRect->left)
pBoundRect->left = pToPoint->x;
else if ((pToPoint->x + 1) >= pBoundRect->right)
pBoundRect->right = pToPoint->x + 1;
if (pToPoint->y < pBoundRect->top)
pBoundRect->top = pToPoint->y;
else if ((pToPoint->y + 1) >= pBoundRect->bottom)
pBoundRect->bottom = pToPoint->y + 1;
DC_END_FN();
return TRUE;
}
// Worker function to allocate and direct-encode a PolyLine order.
// Note that the subpathing of a PolyLine makes it possible for
// the entire order to be clipped out by part of the clip rectangles.
// We cannot encode these clipped orders since they change the
// direct-encode state. To counter this we receive as a parameter the list of
// clip rects, and we don't allocate and create the order if it will be
// entirely clipped. Returns TRUE if there was no problem allocating space
// for the order (clipping the order completely is not an error).
BOOL OECreateAndFlushPolyLineOrder(
PDD_PDEV ppdev,
RECTL *pBoundRect,
OE_ENUMRECTS *pClipRects,
POINTL *pStartPoint,
BRUSHOBJ *pbo,
CLIPOBJ *pco,
unsigned ROP2,
unsigned NumDeltas,
unsigned DeltaSize,
BYTE *Deltas,
BYTE *ZeroFlags)
{
BOOL rc = TRUE;
unsigned i, NumRects;
unsigned NumZeroFlagBytes;
PINT_ORDER pOrder;
OE_ENUMRECTS IntersectRects;
DC_BEGIN_FN("OECreateAndFlushPolyLineOrder");
// First check to see if the order is completely clipped by the
// rects returned by the clip object. pBoundRect is exclusive.
IntersectRects.rects.c = 0;
if (pClipRects->rects.c == 0 ||
OEGetIntersectionsWithClipRects(pBoundRect, pClipRects,
&IntersectRects) > 0) {
// Round the number of zero flag bits actually used upward to the
// nearest byte. Each point encoded takes two bits.
NumZeroFlagBytes = (NumDeltas + 3) / 4;
TRC_ASSERT((NumZeroFlagBytes <= ORD_MAX_POLYLINE_ZERO_FLAGS_BYTES),
(TB,"Too many zero-flags bytes"));
TRC_ASSERT((NumDeltas <= ORD_MAX_POLYLINE_ENCODED_POINTS),
(TB,"Too many encoded orders"));
TRC_ASSERT((DeltaSize <= ORD_MAX_POLYLINE_CODEDDELTAS_LEN),
(TB,"Too many encoded delta bytes"));
// 1 field flag byte.
pOrder = OA_AllocOrderMem(ppdev, MAX_ORDER_SIZE(IntersectRects.rects.c,
1, MAX_POLYLINE_BASE_FIELDS_SIZE + 1 + NumZeroFlagBytes +
DeltaSize));
if (pOrder != NULL) {
BYTE *pControlFlags = pOrder->OrderData;
BYTE *pBuffer = pControlFlags + 1;
BYTE *pFieldFlags;
short Delta, NormalCoordEncoding[2];
BOOLEAN bUseDeltaCoords;
unsigned NumFields;
DCCOLOR Color;
unsigned TotalSize;
// Direct-encode the primary order fields. 1 field flag byte.
*pControlFlags = TS_STANDARD;
OE2_EncodeOrderType(pControlFlags, &pBuffer,
TS_ENC_POLYLINE_ORDER);
pFieldFlags = pBuffer;
*pFieldFlags = 0;
pBuffer++;
if (IntersectRects.rects.c != 0)
OE2_EncodeBounds(pControlFlags, &pBuffer,
&IntersectRects.rects.arcl[0]);
// Inline field encode directly to wire format.
// Simultaneously determine if each of the coordinate fields has
// changed, whether we can use delta coordinates, and save changed
// fields.
NumFields = 0;
bUseDeltaCoords = TRUE;
// XStart
Delta = (short)(pStartPoint->x - PrevPolyLine.XStart);
if (Delta) {
PrevPolyLine.XStart = pStartPoint->x;
if (Delta != (short)(char)Delta)
bUseDeltaCoords = FALSE;
pBuffer[NumFields] = (char)Delta;
NormalCoordEncoding[NumFields] = (short)pStartPoint->x;
NumFields++;
*pFieldFlags |= 0x01;
}
// YStart
Delta = (short)(pStartPoint->y - PrevPolyLine.YStart);
if (Delta) {
PrevPolyLine.YStart = pStartPoint->y;
if (Delta != (short)(char)Delta)
bUseDeltaCoords = FALSE;
pBuffer[NumFields] = (char)Delta;
NormalCoordEncoding[NumFields] = (short)pStartPoint->y;
NumFields++;
*pFieldFlags |= 0x02;
}
// Copy the final coordinates to the order.
if (bUseDeltaCoords) {
*pControlFlags |= TS_DELTA_COORDINATES;
pBuffer += NumFields;
}
else {
*((DWORD UNALIGNED *)pBuffer) =
*((DWORD *)NormalCoordEncoding);
pBuffer += NumFields * sizeof(short);
}
// ROP2
if (ROP2 != PrevPolyLine.ROP2) {
PrevPolyLine.ROP2 = ROP2;
*pBuffer++ = (BYTE)ROP2;
*pFieldFlags |= 0x04;
}
// BrushCacheEntry. This field is currently unused. We simply choose
// always to send zero, which means we can skip the field for
// the encoding. This is field encoding flag 0x08.
// PenColor is a 3-byte color field.
OEConvertColor(ppdev, &Color, pbo->iSolidColor, NULL);
if (memcmp(&Color, &PrevPolyLine.PenColor, sizeof(Color))) {
PrevPolyLine.PenColor = Color;
*pBuffer++ = Color.u.rgb.red;
*pBuffer++ = Color.u.rgb.green;
*pBuffer++ = Color.u.rgb.blue;
*pFieldFlags |= 0x10;
}
// NumDeltaEntries
if (NumDeltas != PrevPolyLine.NumDeltaEntries) {
PrevPolyLine.NumDeltaEntries = NumDeltas;
*pBuffer++ = (BYTE)NumDeltas;
*pFieldFlags |= 0x20;
}
// CodedDeltaList - a variable-length byte stream. First 1-byte
// value is the count of bytes, followed by the zero flags and
// then the deltas. This field is considered different from the
// previous if the length or the contents are different.
*pBuffer = (BYTE)(DeltaSize + NumZeroFlagBytes);
memcpy(pBuffer + 1, ZeroFlags, NumZeroFlagBytes);
memcpy(pBuffer + 1 + NumZeroFlagBytes, Deltas, DeltaSize);
TotalSize = 1 + NumZeroFlagBytes + DeltaSize;
if (memcmp(pBuffer, &PrevPolyLine.CodedDeltaList, TotalSize)) {
memcpy(&PrevPolyLine.CodedDeltaList, pBuffer, TotalSize);
pBuffer += TotalSize;
*pFieldFlags |= 0x40;
}
pOrder->OrderLength = (unsigned)(pBuffer - pOrder->OrderData);
// See if we can save sending the order field bytes.
pOrder->OrderLength -= OE2_CheckOneZeroFlagByte(pControlFlags,
pFieldFlags, (unsigned)(pBuffer - pFieldFlags - 1));
INC_OUTCOUNTER(OUT_STROKEPATH_POLYLINE);
ADD_INCOUNTER(IN_POLYLINE_BYTES, pOrder->OrderLength);
OA_AppendToOrderList(pOrder);
// Flush the order.
if (IntersectRects.rects.c < 2)
rc = TRUE;
else
rc = OEEmitReplayOrders(ppdev, 1, &IntersectRects);
}
else {
TRC_ERR((TB,"Failed to alloc space for order"));
rc = FALSE;
}
}
else {
TRC_DBG((TB,"Clipping PolyLine order - no intersecting clip rects"));
}
DC_END_FN();
return rc;
}
// Worker function - combines the chore of allocating EllipseSC order from
// the OA heap and contructing the order given the parameters. Then we give
// the order to OE to finish encoding. Returns TRUE on success (meaning no
// error allocating from the order heap).
BOOL OECreateAndFlushEllipseSCOrder(
PDD_PDEV ppdev,
RECT *pEllipseRect,
BRUSHOBJ *pbo,
OE_ENUMRECTS *pClipRects,
unsigned ROP2,
FLONG flOptions)
{
BOOL rc = TRUE;
PINT_ORDER pOrder;
PELLIPSE_SC_ORDER pEllipseSC;
OE_ENUMRECTS IntersectRects;
RECTL ExclusiveRect;
DC_BEGIN_FN("OECreateAndFlushEllipseSCOrder");
// EllipseRect is inclusive, we need exclusive for getting clip rects.
ExclusiveRect = *((RECTL *)pEllipseRect);
ExclusiveRect.right++;
ExclusiveRect.bottom++;
// First make sure the clip rects actually intersect with the ellipse
// after its target screen rect has been calculated. Note that
// *pEllipseRect is already in inclusive coords.
IntersectRects.rects.c = 0;
if (pClipRects->rects.c == 0 ||
OEGetIntersectionsWithClipRects(&ExclusiveRect, pClipRects,
&IntersectRects) > 0) {
// 1 field flag byte.
pOrder = OA_AllocOrderMem(ppdev, MAX_ORDER_SIZE(IntersectRects.rects.c,
1, MAX_ELLIPSE_SC_FIELD_SIZE));
if (pOrder != NULL) {
// Set up the order fields in the temp buffer.
pEllipseSC = (PELLIPSE_SC_ORDER)oeTempOrderBuffer;
pEllipseSC->LeftRect = pEllipseRect->left;
pEllipseSC->RightRect = pEllipseRect->right;
pEllipseSC->TopRect = pEllipseRect->top;
pEllipseSC->BottomRect = pEllipseRect->bottom;
pEllipseSC->ROP2 = ROP2;
pEllipseSC->FillMode = flOptions;
OEConvertColor(ppdev, &pEllipseSC->Color, pbo->iSolidColor, NULL);
// Slow-field-encode the order with the first clip rect
// (if present).
pOrder->OrderLength = OE2_EncodeOrder(pOrder->OrderData,
TS_ENC_ELLIPSE_SC_ORDER, NUM_ELLIPSE_SC_FIELDS,
(BYTE *)pEllipseSC, (BYTE *)&PrevEllipseSC, etable_EC,
(IntersectRects.rects.c == 0 ? NULL :
&IntersectRects.rects.arcl[0]));
ADD_INCOUNTER(IN_ELLIPSE_SC_BYTES, pOrder->OrderLength);
OA_AppendToOrderList(pOrder);
// Flush the order.
if (IntersectRects.rects.c < 2)
rc = TRUE;
else
rc = OEEmitReplayOrders(ppdev, 1, &IntersectRects);
}
else {
TRC_ERR((TB,"Failed to alloc order heap space for ellipse"));
rc = FALSE;
}
}
else {
// We still return TRUE here since the order was handled OK, just not
// sent.
TRC_NRM((TB,"Ellipse does not intersect with cliprects"));
}
DC_END_FN();
return rc;
}
// The real function.
BOOL RDPCALL DrvStrokePath(
SURFOBJ *pso,
PATHOBJ *ppo,
CLIPOBJ *pco,
XFORMOBJ *pxo,
BRUSHOBJ *pbo,
POINTL *pptlBrushOrg,
LINEATTRS *plineattrs,
MIX mix)
{
PDD_PDEV ppdev = (PDD_PDEV)pso->dhpdev;
PDD_DSURF pdsurf = NULL;
BOOL rc = TRUE;
RECTFX rectfxTrg;
RECTL rectTrg;
BOOL fMore = TRUE;
PATHDATA pathData;
POINTL originPoint;
POINTL startPoint;
POINTL nextPoint;
POINTL endPoint;
unsigned pathIndex;
OE_ENUMRECTS ClipRects;
DC_BEGIN_FN("DrvStrokePath");
// Sometimes, we're called after being disconnected.
if (ddConnected && pddShm != NULL) {
// Surface is non-NULL.
pso = OEGetSurfObjBitmap(pso, &pdsurf);
// Get bounding rectangle.
PATHOBJ_vGetBounds(ppo, &rectfxTrg);
RECT_FROM_RECTFX(rectTrg, rectfxTrg);
// Punt the call back to GDI to do the drawing.
INC_OUTCOUNTER(OUT_STROKEPATH_ALL);
rc = EngStrokePath(pso, ppo, pco, pxo, pbo, pptlBrushOrg, plineattrs,
mix);
if (!rc) {
TRC_ERR((TB, "EngStrokePath failed"));
DC_QUIT;
}
// if the path bound gives empty rect, we'll just ignore
if (rectTrg.left == 0 && rectTrg.right == 0 &&
rectTrg.top == 0 && rectTrg.bottom == 0) {
TRC_ERR((TB, "Empty Path obj bounding rect, ignore"));
DC_QUIT;
}
}
else {
if (pso->iType == STYPE_DEVBITMAP) {
// Surface is non-NULL.
pso = OEGetSurfObjBitmap(pso, &pdsurf);
rc = EngStrokePath(pso, ppo, pco, pxo, pbo, pptlBrushOrg, plineattrs,
mix);
}
else {
TRC_ERR((TB, "Called when disconnected"));
}
goto CalledOnDisconnected;
}
if ((pso->hsurf == ppdev->hsurfFrameBuf) ||
(!(pdsurf->flags & DD_NO_OFFSCREEN))) {
// Send a switch surface PDU if the destination surface is different
// from last drawing order. If we failed to send the PDU, we will
// just have to bail on this drawing order.
if (!OESendSwitchSurfacePDU(ppdev, pdsurf)) {
TRC_ERR((TB, "failed to send the switch surface PDU"));
DC_QUIT;
}
} else {
// if noOffscreen flag is on, we will bail on sending
// the client any further offscreen rendering. And will send the final
// offscreen to screen blt as regular memblt.
TRC_NRM((TB, "Offscreen blt bail"));
DC_QUIT;
}
// Check if we are allowed to send this order.
if (OE_SendAsOrder(TS_ENC_POLYLINE_ORDER)) {
// Check for a valid brush for the test operation.
if (pbo->iSolidColor != -1) {
unsigned RetVal;
// Get the intersection between the entire dest rect and
// the clip rects. Check for overcomplicated or
// nonintersecting clipping. Note this is a first cut,
// further interactions are calculated for each PolyLine
// subpath and ellipse created.
RetVal = OEGetIntersectingClipRects(pco, &rectTrg, CD_ANY,
&ClipRects);
if (RetVal == CLIPRECTS_TOO_COMPLEX) {
TRC_NRM((TB, "Clipping is too complex"));
INC_OUTCOUNTER(OUT_STROKEPATH_SDA_COMPLEXCLIP);
goto SendAsSDA;
}
else if (RetVal == CLIPRECTS_NO_INTERSECTIONS) {
TRC_NRM((TB, "Clipping does not intersect destrect"));
DC_QUIT;
}
}
else {
TRC_NRM((TB, "Bad brush for line"));
INC_OUTCOUNTER(OUT_STROKEPATH_SDA_BADBRUSH);
goto SendAsSDA;
}
}
else {
TRC_NRM((TB, "PolyLine order not allowed"));
INC_OUTCOUNTER(OUT_STROKEPATH_SDA_NOLINETO);
goto SendAsSDA;
}
// See if we can optimize the path...
// We cannot send beziers, geometric lines, or nonstandard patterns.
if (ppo->fl & PO_ELLIPSE &&
OE_SendAsOrder(TS_ENC_ELLIPSE_SC_ORDER)) {
RECT EllipseRect;
// Get the inclusive rect covering only the ellipse itself.
// Add 4/16 to left and top, subtract from right and bottom, to undo
// the GDI transformation already performed.
EllipseRect.left = FXTOLROUND(rectfxTrg.xLeft + 4);
EllipseRect.top = FXTOLROUND(rectfxTrg.yTop + 4);
EllipseRect.right = FXTOLROUND(rectfxTrg.xRight - 4);
EllipseRect.bottom = FXTOLROUND(rectfxTrg.yBottom - 4);
// We use fillmode 0 to indidate this is a polyline ellipse.
if (OECreateAndFlushEllipseSCOrder(ppdev, &EllipseRect, pbo,
&ClipRects, mix & 0x1F, 0)) {
INC_OUTCOUNTER(OUT_STROKEPATH_ELLIPSE_SC);
goto PostSDA;
}
else {
// No order heap space, send all as SDAs.
INC_OUTCOUNTER(OUT_STROKEPATH_SDA_FAILEDADD);
goto SendAsSDA;
}
}
else if (!(ppo->fl & PO_BEZIERS) &&
!(plineattrs->fl & LA_GEOMETRIC) &&
plineattrs->pstyle == NULL) {
BYTE Deltas[ORD_MAX_POLYLINE_CODEDDELTAS_LEN];
BYTE ZeroFlags[ORD_MAX_POLYLINE_ZERO_FLAGS_BYTES];
BYTE *pCurEncode;
RECTL BoundRect;
POINTL HoldPoint;
unsigned NumDeltas;
unsigned DeltaSize;
// This is a set of solid cosmetic (i.e. no fancy end styles)
// width-1 lines. NT stores all paths as a set of independent
// sub-paths. Each sub-path can start at a new point that is NOT
// linked to the previous sub-path. Paths used for this function
// (as opposed to DrvFillPath or DrvStrokeAndFillPath) do not need
// to be closed. We assume that the first enumerated subpath will
// have the PD_BEGINSUBPATH flag set; this appears to match reality.
PATHOBJ_vEnumStart(ppo);
while (fMore) {
// Get the next set of lines.
fMore = PATHOBJ_bEnum(ppo, &pathData);
TRC_DBG((TB, "PTS: %lu FLAG: %08lx",
pathData.count,
pathData.flags));
// If this is the start of a path, remember the origin point in
// case we need to close the path at the end. startPoint is the
// start point for the current PolyLine order in the rare case
// where we have more than MAX_POLYLINE_ENCODED_POINTS points.
if (pathData.flags & PD_BEGINSUBPATH) {
POINT_FROM_POINTFIX(originPoint, pathData.pptfx[0]);
nextPoint = originPoint;
startPoint = originPoint;
// Set up encoding variables. Start the bound rect with
// a zero-size rect.
BoundRect.left = BoundRect.right = startPoint.x;
BoundRect.top = BoundRect.bottom = startPoint.y;
NumDeltas = DeltaSize = 0;
pCurEncode = Deltas;
memset(ZeroFlags, 0, sizeof(ZeroFlags));
pathIndex = 1;
}
else {
// This is a continuation from a previous PATHDATA.
nextPoint = HoldPoint;
pathIndex = 0;
}
// Generate deltas for each point in the path.
for (; pathIndex < pathData.count; pathIndex++) {
POINT_FROM_POINTFIX(endPoint, pathData.pptfx[pathIndex]);
// Don't try to encode points where both deltas are zero.
if ((nextPoint.x != endPoint.x) ||
(nextPoint.y != endPoint.y)) {
if (OEEncodePolyLinePointDelta(&pCurEncode, &NumDeltas,
&DeltaSize, ZeroFlags, &nextPoint, &endPoint,
&BoundRect)) {
// Check for full order and flush if need be.
if (NumDeltas == ORD_MAX_POLYLINE_ENCODED_POINTS) {
if (OECreateAndFlushPolyLineOrder(ppdev,
&BoundRect, &ClipRects, &startPoint, pbo,
pco, mix & 0x1F, NumDeltas, DeltaSize,
Deltas, ZeroFlags)) {
// We have a new temporary start point in the
// middle of the path.
startPoint = endPoint;
// Reset encoding variables.
BoundRect.left = BoundRect.right = startPoint.x;
BoundRect.top = BoundRect.bottom = startPoint.y;
NumDeltas = DeltaSize = 0;
pCurEncode = Deltas;
memset(ZeroFlags, 0, sizeof(ZeroFlags));
} else {
// No order heap space, send all as SDAs.
INC_OUTCOUNTER(OUT_STROKEPATH_SDA_FAILEDADD);
goto SendAsSDA;
}
}
}
else {
goto SendAsSDA;
}
}
nextPoint = endPoint;
}
// Close the path if necessary.
if (pathData.flags & PD_CLOSEFIGURE) {
// Don't try to encode points where both deltas are zero.
if ((nextPoint.x != originPoint.x) ||
(nextPoint.y != originPoint.y)) {
if (!OEEncodePolyLinePointDelta(&pCurEncode, &NumDeltas,
&DeltaSize, ZeroFlags, &nextPoint, &originPoint,
&BoundRect)) {
goto SendAsSDA;
}
}
// PD_CLOSEFIGURE is present only with PD_ENDSUBPATH but
// just in case...
TRC_ASSERT((pathData.flags & PD_ENDSUBPATH),
(TB,"CLOSEFIGURE received without ENDSUBPATH"));
}
if (pathData.flags & PD_ENDSUBPATH) {
if (NumDeltas > 0) {
// We are at the end of the subpath. Flush the data we
// have.
if (!OECreateAndFlushPolyLineOrder(ppdev, &BoundRect,
&ClipRects, &startPoint, pbo, pco,
mix & 0x1F, NumDeltas, DeltaSize, Deltas,
ZeroFlags)) {
// No order heap space, send all as SDAs.
INC_OUTCOUNTER(OUT_STROKEPATH_SDA_FAILEDADD);
goto SendAsSDA;
}
}
}
else {
HoldPoint = endPoint;
}
}
goto PostSDA;
}
SendAsSDA:
if (pso->hsurf == ppdev->hsurfFrameBuf) {
INC_OUTCOUNTER(OUT_STROKEPATH_SDA);
ADD_INCOUNTER(IN_SDA_STROKEPATH_AREA, COM_SIZEOF_RECT(rectTrg));
// Clip the bound rect to 16 bits and add to SDA.
OEClipRect(&rectTrg);
TRC_DBG((TB, "SDA: (%d,%d)(%d,%d)", rectTrg.left, rectTrg.top,
rectTrg.right, rectTrg.bottom));
OEClipAndAddScreenDataArea(&rectTrg, pco);
}
else {
// If we can't send orders for offscreen rendering, we will
// bail offscreen support for this bitmap.
TRC_ALT((TB, "screen data call for offscreen rendering"));
if (!(pdsurf->flags & DD_NO_OFFSCREEN))
CH_RemoveCacheEntry(sbcOffscreenBitmapCacheHandle, pdsurf->bitmapId);
DC_QUIT;
}
PostSDA:
// Have scheduler consider sending output.
SCH_DDOutputAvailable(ppdev, FALSE);
CalledOnDisconnected:
DC_EXIT_POINT:
DC_END_FN();
return rc;
}
/****************************************************************************/
/* DrvFillPath - see NT DDK documentation. */
/****************************************************************************/
// Worker function - combines the chore of allocating PolyGonCB order from
// the OA heap and contructing the order given the parameters. Then we give
// the order to OE to finish encoding. Returns TRUE on success (meaning no
// error allocating from the order heap).
BOOL OECreateAndFlushPolygonCBOrder(
PDD_PDEV ppdev,
RECTL *pBoundRect,
POINTL *pStartPoint,
POE_BRUSH_DATA pCurrentBrush,
POINTL *pptlBrushOrg,
OE_ENUMRECTS *pClipRects,
MIX mix,
FLONG flOptions,
unsigned NumDeltas,
unsigned DeltaSize,
BYTE *Deltas,
BYTE *ZeroFlags)
{
BOOL rc = TRUE;
unsigned NumZeroFlagBytes;
PINT_ORDER pOrder;
PPOLYGON_CB_ORDER pPolygonCB;
OE_ENUMRECTS IntersectRects;
DC_BEGIN_FN("OECreateAndFlushPolygonCBOrder");
// First make sure the clip rects actually intersect with the polygon
// after its target screen rect has been calculated. Note that
// *pBoundRect is in exclusive coords.
IntersectRects.rects.c = 0;
if (pClipRects->rects.c == 0 ||
OEGetIntersectionsWithClipRects(pBoundRect, pClipRects,
&IntersectRects) > 0) {
// Round the number of zero flag bits actually used upward to the
// nearest byte. Each point encoded takes two bits.
NumZeroFlagBytes = (NumDeltas + 3) / 4;
TRC_ASSERT((NumZeroFlagBytes <= ORD_MAX_POLYGON_ZERO_FLAGS_BYTES),
(TB,"Too many zero-flags bytes"));
TRC_ASSERT((NumDeltas <= ORD_MAX_POLYGON_ENCODED_POINTS),
(TB,"Too many encoded orders"));
TRC_ASSERT((DeltaSize <= ORD_MAX_POLYGON_CODEDDELTAS_LEN),
(TB,"Too many encoded delta bytes"));
// 2 field flag bytes.
pOrder = OA_AllocOrderMem(ppdev, MAX_ORDER_SIZE(IntersectRects.rects.c,
2, MAX_POLYGON_CB_BASE_FIELDS_SIZE + 1 + NumZeroFlagBytes +
DeltaSize));
if (pOrder != NULL) {
// Set up the order fields.
pPolygonCB = (PPOLYGON_CB_ORDER)oeTempOrderBuffer;
pPolygonCB->XStart = pStartPoint->x;
pPolygonCB->YStart = pStartPoint->y;
// If this is a hatched brush, the high bit of ROP2 indicates the
// background fill mode: 1 means transparent, 0 means opaque.
pPolygonCB->ROP2 = mix & 0x1F;
if (pCurrentBrush->style == BS_HATCHED &&
((mix & 0x1F00) >> 8) == R2_NOP)
pPolygonCB->ROP2 |= 0x80;
pPolygonCB->FillMode = flOptions;
pPolygonCB->NumDeltaEntries = NumDeltas;
pPolygonCB->CodedDeltaList.len = DeltaSize + NumZeroFlagBytes;
// Pattern colors.
pPolygonCB->BackColor = pCurrentBrush->back;
pPolygonCB->ForeColor = pCurrentBrush->fore;
// The protocol brush origin is the point on the screen where
// we want the brush to start being drawn from (tiling where
// necessary).
pPolygonCB->BrushOrgX = pptlBrushOrg->x;
pPolygonCB->BrushOrgY = pptlBrushOrg->y;
OEClipPoint((PPOINTL)&pPolygonCB->BrushOrgX);
// Extra brush data from the data when we realised the brush.
pPolygonCB->BrushStyle = pCurrentBrush->style;
pPolygonCB->BrushHatch = pCurrentBrush->hatch;
memcpy(pPolygonCB->BrushExtra, pCurrentBrush->brushData,
sizeof(pPolygonCB->BrushExtra));
// Copy the zero flags first.
memcpy(pPolygonCB->CodedDeltaList.Deltas, ZeroFlags, NumZeroFlagBytes);
// Next copy the encoded deltas.
memcpy(pPolygonCB->CodedDeltaList.Deltas + NumZeroFlagBytes, Deltas,
DeltaSize);
// Slow-field-encode the order with the first clip rect
// (if present).
pOrder->OrderLength = OE2_EncodeOrder(pOrder->OrderData,
TS_ENC_POLYGON_CB_ORDER, NUM_POLYGON_CB_FIELDS,
(BYTE *)pPolygonCB, (BYTE *)&PrevPolygonCB, etable_BG,
(IntersectRects.rects.c == 0 ? NULL :
&IntersectRects.rects.arcl[0]));
ADD_INCOUNTER(IN_POLYGON_CB_BYTES, pOrder->OrderLength);
OA_AppendToOrderList(pOrder);
// Flush the order.
if (IntersectRects.rects.c < 2)
rc = TRUE;
else
rc = OEEmitReplayOrders(ppdev, 2, &IntersectRects);
}
else {
TRC_ERR((TB,"Failed to alloc space for PolygonSC"));
rc = FALSE;
}
}
else {
// We still return TRUE here since we handled the order by not
// sending it.
TRC_NRM((TB,"PolygonCB fully clipped out"));
}
DC_END_FN();
return rc;
}
// Worker function - combines the chore of allocating PolygonSC order from
// the OA heap and contructing the order given the parameters. Then we give
// the order to OE to finish encoding. Returns TRUE on success (meaning no
// error allocating from the order heap).
BOOL OECreateAndFlushPolygonSCOrder(
PDD_PDEV ppdev,
RECTL *pBoundRect,
POINTL *pStartPoint,
BRUSHOBJ *pbo,
OE_ENUMRECTS *pClipRects,
unsigned ROP2,
FLONG flOptions,
unsigned NumDeltas,
unsigned DeltaSize,
BYTE *Deltas,
BYTE *ZeroFlags)
{
BOOL rc = TRUE;
unsigned NumZeroFlagBytes;
PINT_ORDER pOrder;
PPOLYGON_SC_ORDER pPolygonSC;
OE_ENUMRECTS IntersectRects;
DC_BEGIN_FN("OECreateAndFlushPolygonSCOrder");
// First make sure the clip rects actually intersect with the polygon
// after its target screen rect has been calculated. Note that
// *pBoundRect is in exclusive coords.
IntersectRects.rects.c = 0;
if (pClipRects->rects.c == 0 ||
OEGetIntersectionsWithClipRects(pBoundRect, pClipRects,
&IntersectRects) > 0) {
// Round the number of zero flag bits actually used upward to the
// nearest byte. Each point encoded takes two bits.
NumZeroFlagBytes = (NumDeltas + 3) / 4;
TRC_ASSERT((NumZeroFlagBytes <= ORD_MAX_POLYGON_ZERO_FLAGS_BYTES),
(TB,"Too many zero-flags bytes"));
TRC_ASSERT((NumDeltas <= ORD_MAX_POLYGON_ENCODED_POINTS),
(TB,"Too many encoded orders"));
TRC_ASSERT((DeltaSize <= ORD_MAX_POLYGON_CODEDDELTAS_LEN),
(TB,"Too many encoded delta bytes"));
// 1 field flag byte.
pOrder = OA_AllocOrderMem(ppdev, MAX_ORDER_SIZE(IntersectRects.rects.c,
1, MAX_POLYGON_SC_BASE_FIELDS_SIZE + 1 + NumZeroFlagBytes +
DeltaSize));
if (pOrder != NULL) {
// Set up the order fields.
pPolygonSC = (PPOLYGON_SC_ORDER)oeTempOrderBuffer;
pPolygonSC->XStart = pStartPoint->x;
pPolygonSC->YStart = pStartPoint->y;
pPolygonSC->ROP2 = ROP2;
pPolygonSC->FillMode = flOptions;
pPolygonSC->NumDeltaEntries = NumDeltas;
pPolygonSC->CodedDeltaList.len = DeltaSize + NumZeroFlagBytes;
// Pattern colors.
OEConvertColor(ppdev, &pPolygonSC->BrushColor, pbo->iSolidColor,
NULL);
// Copy the zero flags first.
memcpy(pPolygonSC->CodedDeltaList.Deltas, ZeroFlags,
NumZeroFlagBytes);
// Next copy the encoded deltas.
memcpy(pPolygonSC->CodedDeltaList.Deltas + NumZeroFlagBytes,
Deltas, DeltaSize);
// Slow-field-encode the order with the first clip rect
// (if present).
pOrder->OrderLength = OE2_EncodeOrder(pOrder->OrderData,
TS_ENC_POLYGON_SC_ORDER, NUM_POLYGON_SC_FIELDS,
(BYTE *)pPolygonSC, (BYTE *)&PrevPolygonSC, etable_CG,
(IntersectRects.rects.c == 0 ? NULL :
&IntersectRects.rects.arcl[0]));
ADD_INCOUNTER(IN_POLYGON_SC_BYTES, pOrder->OrderLength);
OA_AppendToOrderList(pOrder);
// Flush the order.
if (IntersectRects.rects.c < 2)
rc = TRUE;
else
rc = OEEmitReplayOrders(ppdev, 1, &IntersectRects);
}
else {
TRC_ERR((TB,"Failed to alloc space for PolygonCB"));
rc = FALSE;
}
}
else {
// We still return TRUE here since we handled the order by not
// sending it.
TRC_NRM((TB,"PolygonSC completely clipped"));
}
DC_END_FN();
return rc;
}
// Worker function - combines the chore of allocating EllipseCB order from
// the OA heap and contructing the order given the parameters. Then we give
// the order to OE to finish encoding. Returns TRUE on success (meaning no
// error allocating from the order heap).
BOOL OECreateAndFlushEllipseCBOrder(
PDD_PDEV ppdev,
RECT *pEllipseRect,
POE_BRUSH_DATA pCurrentBrush,
POINTL *pptlBrushOrg,
OE_ENUMRECTS *pClipRects,
MIX mix,
FLONG flOptions)
{
BOOL rc = TRUE;
PINT_ORDER pOrder;
PELLIPSE_CB_ORDER pEllipseCB;
OE_ENUMRECTS IntersectRects;
RECTL ExclusiveRect;
DC_BEGIN_FN("OECreateAndFlushEllipseCBOrder");
// EllipseRect is inclusive, we need exclusive for getting clip rects.
ExclusiveRect = *((RECTL *)pEllipseRect);
ExclusiveRect.right++;
ExclusiveRect.bottom++;
// First make sure the clip rects actually intersect with the ellipse
// after its target screen rect has been calculated. Note that
// *pEllipseRect is already in inclusive coords.
IntersectRects.rects.c = 0;
if (pClipRects->rects.c == 0 ||
OEGetIntersectionsWithClipRects(&ExclusiveRect, pClipRects,
&IntersectRects) > 0) {
// 2 field flag bytes.
pOrder = OA_AllocOrderMem(ppdev, MAX_ORDER_SIZE(IntersectRects.rects.c,
2, MAX_ELLIPSE_CB_FIELD_SIZE));
if (pOrder != NULL) {
// Set up the order fields.
pEllipseCB = (PELLIPSE_CB_ORDER)oeTempOrderBuffer;
pEllipseCB->LeftRect = pEllipseRect->left;
pEllipseCB->RightRect = pEllipseRect->right;
pEllipseCB->TopRect = pEllipseRect->top;
pEllipseCB->BottomRect = pEllipseRect->bottom;
pEllipseCB->FillMode = flOptions;
// If this is a hatched brush, the high bit of ROP2 indicates the
// background fill mode: 1 means transparent, 0 means opaque.
pEllipseCB->ROP2 = mix & 0x1F;
if (pCurrentBrush->style == BS_HATCHED &&
((mix & 0x1F00) >> 8) == R2_NOP)
pEllipseCB->ROP2 |= 0x80;
// Pattern colors.
pEllipseCB->BackColor = pCurrentBrush->back;
pEllipseCB->ForeColor = pCurrentBrush->fore;
// The protocol brush origin is the point on the screen where
// we want the brush to start being drawn from (tiling where
// necessary).
pEllipseCB->BrushOrgX = pptlBrushOrg->x;
pEllipseCB->BrushOrgY = pptlBrushOrg->y;
OEClipPoint((PPOINTL)&pEllipseCB->BrushOrgX);
// Extra brush data from the data when we realised the brush.
pEllipseCB->BrushStyle = pCurrentBrush->style;
pEllipseCB->BrushHatch = pCurrentBrush->hatch;
memcpy(pEllipseCB->BrushExtra, pCurrentBrush->brushData,
sizeof(pEllipseCB->BrushExtra));
// Slow-field-encode the order with the first clip rect
// (if present).
pOrder->OrderLength = OE2_EncodeOrder(pOrder->OrderData,
TS_ENC_ELLIPSE_CB_ORDER, NUM_ELLIPSE_CB_FIELDS,
(BYTE *)pEllipseCB, (BYTE *)&PrevEllipseCB, etable_EB,
(IntersectRects.rects.c == 0 ? NULL :
&IntersectRects.rects.arcl[0]));
ADD_INCOUNTER(IN_ELLIPSE_CB_BYTES, pOrder->OrderLength);
OA_AppendToOrderList(pOrder);
// Flush the order.
if (IntersectRects.rects.c < 2)
rc = TRUE;
else
rc = OEEmitReplayOrders(ppdev, 2, &IntersectRects);
}
else {
TRC_ERR((TB,"Unable to alloc space for EllipseCB"));
rc = FALSE;
}
}
else {
// We still return TRUE here since we handled the order by not
// sending it.
TRC_NRM((TB,"EllipseCB completely clipped"));
}
DC_END_FN();
return rc;
}
//
// DrvFillPath
//
BOOL RDPCALL DrvFillPath(
SURFOBJ *pso,
PATHOBJ *ppo,
CLIPOBJ *pco,
BRUSHOBJ *pbo,
POINTL *pptlBrushOrg,
MIX mix,
FLONG flOptions)
{
PDD_PDEV ppdev = (PDD_PDEV)pso->dhpdev;
PDD_DSURF pdsurf = NULL;
BOOL rc = TRUE;
RECTFX rectfxTrg;
RECTL rectTrg;
RECT EllipseRect;
BOOL fMore = TRUE;
PATHDATA pathData;
POINTL startPoint;
POINTL nextPoint;
POINTL endPoint;
unsigned pathIndex;
POE_BRUSH_DATA pCurrentBrush;
OE_ENUMRECTS ClipRects;
DC_BEGIN_FN("DrvFillPath");
// Sometimes, we're called after being disconnected.
if (ddConnected && pddShm != NULL) {
// Surface is non-NULL.
pso = OEGetSurfObjBitmap(pso, &pdsurf);
// Get bounding rectangle.
PATHOBJ_vGetBounds(ppo, &rectfxTrg);
RECT_FROM_RECTFX(rectTrg, rectfxTrg);
// Punt the call back to GDI to do the drawing.
INC_OUTCOUNTER(OUT_FILLPATH_ALL);
// Check if we are allowed to send this order (determined by the
// negotiated capabilities of all the machines in the conference).
// We shouldn't do Eng call if we return FALSE. Otherwise, the frame
// buffer will be already drawn, and it will cause rendering problems
// when GDI re-renders it to other drawings.
if (OE_SendAsOrder(TS_ENC_POLYGON_SC_ORDER) ||
OE_SendAsOrder(TS_ENC_POLYGON_CB_ORDER)) {
rc = EngFillPath(pso, ppo, pco, pbo, pptlBrushOrg, mix,
flOptions);
}
else {
TRC_NRM((TB, "Polygon order not allowed"));
INC_OUTCOUNTER(OUT_FILLPATH_SDA_NOPOLYGON);
// If the client doesn't support polygon, we just have
// to fail DrvFillPath, the GDI will rerender the drawing
// to other Drv calls
return FALSE;
}
// if the path bound gives empty rect, we'll just ignore
if (rectTrg.left == 0 && rectTrg.right == 0 &&
rectTrg.top == 0 && rectTrg.bottom == 0) {
TRC_ERR((TB, "Empty Path obj bounding rect, ignore"));
DC_QUIT;
}
if (rc) {
if ((pso->hsurf == ppdev->hsurfFrameBuf) ||
(!(pdsurf->flags & DD_NO_OFFSCREEN))) {
// Send a switch surface PDU if the destination surface is different
// from last drawing order. If we failed to send the PDU, we will
// just have to bail on this drawing order.
if (!OESendSwitchSurfacePDU(ppdev, pdsurf)) {
TRC_ERR((TB, "failed to send the switch surface PDU"));
DC_QUIT;
}
} else {
// if noOffscreen flag is on, we will bail on sending
// the client any further offscreen rendering. And will send the final
// offscreen to screen blt as regular memblt.
TRC_NRM((TB, "Offscreen blt bail"));
DC_QUIT;
}
// Check for a valid brush for the test operation.
if (OECheckBrushIsSimple(ppdev, pbo, &pCurrentBrush)) {
unsigned RetVal;
// Get the intersection between the dest rect and the
// clip rects. Check for overcomplicated or
// nonintersecting clipping. Note that this is an
// initial pass, we so another intersection with
// the (possibly smaller) individual order rect
// generated later.
RetVal = OEGetIntersectingClipRects(pco, &rectTrg,
CD_ANY, &ClipRects);
if (RetVal == CLIPRECTS_TOO_COMPLEX) {
TRC_NRM((TB, "Clipping is too complex"));
INC_OUTCOUNTER(OUT_FILLPATH_SDA_COMPLEXCLIP);
goto SendAsSDA;
}
else if (RetVal == CLIPRECTS_NO_INTERSECTIONS) {
TRC_NRM((TB, "Clipping does not intersect destrect"));
DC_QUIT;
}
}
else {
TRC_NRM((TB, "Bad brush for polygon"));
INC_OUTCOUNTER(OUT_FILLPATH_SDA_BADBRUSH);
goto SendAsSDA;
}
// See if we can optimize the path...
// We cannot send beziers, and ellipses are sent as a distinct order.
if (ppo->fl & PO_ELLIPSE &&
(OE_SendAsOrder(TS_ENC_ELLIPSE_SC_ORDER) ||
OE_SendAsOrder(TS_ENC_ELLIPSE_CB_ORDER))) {
// Get the inclusive rect covering only the ellipse itself.
// Add 4/16 to left and top, subtract from right and bottom,
// to undo the GDI transformation.
EllipseRect.left = FXTOLROUND(rectfxTrg.xLeft + 4);
EllipseRect.top = FXTOLROUND(rectfxTrg.yTop + 4);
EllipseRect.right = FXTOLROUND(rectfxTrg.xRight - 4);
EllipseRect.bottom = FXTOLROUND(rectfxTrg.yBottom - 4);
if (pbo->iSolidColor != -1) {
// Solid color ellipse.
if (OECreateAndFlushEllipseSCOrder(ppdev, &EllipseRect,
pbo, &ClipRects, mix & 0x1F, flOptions)) {
INC_OUTCOUNTER(OUT_FILLPATH_ELLIPSE_SC);
goto PostSDA;
} else {
// No order heap space, send all as SDAs.
INC_OUTCOUNTER(OUT_FILLPATH_SDA_FAILEDADD);
goto SendAsSDA;
}
}
else {
// Color pattern brush ellipse.
if (OECreateAndFlushEllipseCBOrder(ppdev, &EllipseRect,
pCurrentBrush, pptlBrushOrg, &ClipRects, mix,
flOptions)) {
INC_OUTCOUNTER(OUT_FILLPATH_ELLIPSE_CB);
goto PostSDA;
} else {
// No order heap space, send all as SDAs.
INC_OUTCOUNTER(OUT_FILLPATH_SDA_FAILEDADD);
goto SendAsSDA;
}
}
}
else if (!(ppo->fl & PO_BEZIERS)) {
BYTE Deltas[ORD_MAX_POLYGON_CODEDDELTAS_LEN];
BYTE ZeroFlags[ORD_MAX_POLYGON_ZERO_FLAGS_BYTES];
POINTL SubPathBoundPts[ORD_MAX_POLYGON_ENCODED_POINTS];
BYTE *pCurEncode;
RECTL BoundRect;
POINTL HoldPoint;
unsigned NumDeltas;
unsigned DeltaSize;
int PointIndex = 0;
BOOL bPathStart = TRUE;
// This is a set of solid cosmetic (i.e. no fancy end styles)
// width-1 lines. NT stores all paths as a set of independent
// sub-paths. Each sub-path can start at a new point that is
// NOT linked to the previous sub-path. Paths used for this
// function need to be closed.
PATHOBJ_vEnumStart(ppo);
while (fMore) {
// Get the next set of lines.
fMore = PATHOBJ_bEnum(ppo, &pathData);
TRC_DBG((TB, "PTS: %lu FLAG: %08lx",
pathData.count,
pathData.flags));
// If this is the start of a path, remember the start point as
// we need to close the path at the end. startPoint is the
// start point for the current PolyGon order.
if (bPathStart) {
POINT_FROM_POINTFIX(startPoint, pathData.pptfx[0]);
nextPoint = startPoint;
// Set up encoding variables.
BoundRect.left = BoundRect.right = startPoint.x;
BoundRect.top = BoundRect.bottom = startPoint.y;
NumDeltas = DeltaSize = 0;
pCurEncode = Deltas;
memset(ZeroFlags, 0, sizeof(ZeroFlags));
pathIndex = 1;
bPathStart = FALSE;
}
else {
// This is a continuation from a previous PATHDATA.
nextPoint = HoldPoint;
pathIndex = 0;
}
// If NumDeltas is > max, we have to send as screen
// data unfortunately since we can't encode this.
if (NumDeltas + pathData.count + PointIndex >
ORD_MAX_POLYGON_ENCODED_POINTS) {
// No order heap space, send all as SDAs.
INC_OUTCOUNTER(OUT_FILLPATH_SDA_FAILEDADD);
goto SendAsSDA;
}
// record subpath's start point
if (pathData.flags & PD_BEGINSUBPATH) {
POINT_FROM_POINTFIX(SubPathBoundPts[PointIndex] , pathData.pptfx[0]);
PointIndex++;
}
// Generate deltas for each point in the path.
for (; pathIndex < pathData.count; pathIndex++) {
POINT_FROM_POINTFIX(endPoint, pathData.pptfx[pathIndex]);
// Don't try to encode points where both deltas are zero.
if ((nextPoint.x != endPoint.x) ||
(nextPoint.y != endPoint.y)) {
if (!OEEncodePolyLinePointDelta(&pCurEncode,
&NumDeltas, &DeltaSize, ZeroFlags,
&nextPoint, &endPoint, &BoundRect)) {
goto SendAsSDA;
}
}
nextPoint = endPoint;
}
// Record subpath's end point
if (pathData.flags & PD_ENDSUBPATH) {
SubPathBoundPts[PointIndex] = endPoint;
PointIndex++;
}
HoldPoint = endPoint;
}
if (NumDeltas > 0) {
// If NumDeltas is > max, we have to send as screen
// data unfortunately since we can't encode this.
if (NumDeltas + PointIndex - 2 >
ORD_MAX_POLYGON_ENCODED_POINTS) {
// No order heap space, send all as SDAs.
INC_OUTCOUNTER(OUT_FILLPATH_SDA_FAILEDADD);
goto SendAsSDA;
}
// For Polygon, we append all the subpath together
// and send as one polygon order. But we need to close
// each subpath respectively to make sure all the subpath
// are closed properly
for (pathIndex = PointIndex - 2; pathIndex > 0; pathIndex--) {
endPoint = SubPathBoundPts[pathIndex];
// Don't try to encode points where both deltas are zero.
if ((nextPoint.x != endPoint.x) ||
(nextPoint.y != endPoint.y)) {
if (!OEEncodePolyLinePointDelta(&pCurEncode,
&NumDeltas, &DeltaSize, ZeroFlags,
&nextPoint, &endPoint, &BoundRect))
goto SendAsSDA;
}
nextPoint = endPoint;
}
// We are at the end of the path. Flush the data we have.
if (pbo->iSolidColor != -1) {
// solid color polygon
if (OECreateAndFlushPolygonSCOrder(ppdev,
&BoundRect,
&startPoint,
pbo,
&ClipRects,
mix & 0x1F,
flOptions,
NumDeltas,
DeltaSize,
Deltas,
ZeroFlags)) {
INC_OUTCOUNTER(OUT_FILLPATH_POLYGON_SC);
} else {
// No order heap space, send all as SDAs.
INC_OUTCOUNTER(OUT_FILLPATH_SDA_FAILEDADD);
goto SendAsSDA;
}
} else {
// color pattern brush polygon
if (OECreateAndFlushPolygonCBOrder(ppdev,
&BoundRect,
&startPoint,
pCurrentBrush,
pptlBrushOrg,
&ClipRects,
mix,
flOptions,
NumDeltas,
DeltaSize,
Deltas,
ZeroFlags)) {
INC_OUTCOUNTER(OUT_FILLPATH_POLYGON_CB);
} else {
// No order heap space, send all as SDAs.
INC_OUTCOUNTER(OUT_FILLPATH_SDA_FAILEDADD);
goto SendAsSDA;
}
}
}
goto PostSDA;
}
else {
TRC_DBG((TB, "Got PO_BEZIERS fill"));
goto SendAsSDA;
}
}
else {
TRC_ERR((TB, "EngFillPath failed"));
DC_QUIT;
}
}
else {
if (pso->iType == STYPE_DEVBITMAP) {
// Surface is non-NULL.
pso = OEGetSurfObjBitmap(pso, &pdsurf);
rc = EngFillPath(pso, ppo, pco, pbo, pptlBrushOrg, mix,
flOptions);
}
else {
TRC_ERR((TB, "Called when disconnected"));
}
goto CalledOnDisconnected;
}
SendAsSDA:
if (pso->hsurf == ppdev->hsurfFrameBuf) {
// If we reached here we did not encode as an order, clip the bound
// rect to 16 bits and add to screen data.
INC_OUTCOUNTER(OUT_FILLPATH_SDA);
ADD_INCOUNTER(IN_SDA_FILLPATH_AREA, COM_SIZEOF_RECT(rectTrg));
OEClipRect(&rectTrg);
TRC_DBG((TB, "SDA: (%d,%d)(%d,%d)", rectTrg.left, rectTrg.top,
rectTrg.right, rectTrg.bottom));
if((rectTrg.right != rectTrg.left) &&
(rectTrg.bottom != rectTrg.top)) {
OEClipAndAddScreenDataArea(&rectTrg, pco);
}
else {
TRC_ASSERT(FALSE,(TB,"Invalid Add Rect (%d,%d,%d,%d)",
rectTrg.left, rectTrg.top, rectTrg.right, rectTrg.bottom));
DC_QUIT;
}
}
else {
// For now, if we can't send orders for offscreen rendering, we will
// bail offscreen support for this bitmap
TRC_ALT((TB, "screen data call for offscreen rendering"));
if (!(pdsurf->flags & DD_NO_OFFSCREEN))
CH_RemoveCacheEntry(sbcOffscreenBitmapCacheHandle, pdsurf->bitmapId);
DC_QUIT;
}
PostSDA:
// Have scheduler consider sending output.
SCH_DDOutputAvailable(ppdev, FALSE);
CalledOnDisconnected:
DC_EXIT_POINT:
DC_END_FN();
return rc;
}
/****************************************************************************/
// DrvPaint - see NT DDK documentation.
/****************************************************************************/
BOOL RDPCALL DrvPaint(
SURFOBJ *pso,
CLIPOBJ *pco,
BRUSHOBJ *pbo,
POINTL *pptlBrushOrg,
MIX mix)
{
PDD_PDEV ppdev = (PDD_PDEV)pso->dhpdev;
PDD_DSURF pdsurf = NULL;
SURFOBJ *psoBitmap;
BOOL rc = TRUE;
RECTL rectTrg;
BYTE rop3;
OE_ENUMRECTS ClipRects;
DC_BEGIN_FN("DrvPaint");
// Sometimes, we're called after being disconnected.
if (ddConnected && pddShm != NULL) {
// Surface is non-NULL.
psoBitmap = OEGetSurfObjBitmap(pso, &pdsurf);
INC_OUTCOUNTER(OUT_PAINT_ALL);
// Throw the drawing to GDI first.
rc = EngPaint(psoBitmap, pco, pbo, pptlBrushOrg, mix);
if (rc) {
// If ppdev is NULL then this is a blt to GDI managed memory
// bitmap, so there is no need to send any orders to the client.
if (ppdev != NULL) {
unsigned RetVal;
// Get bounding rectangle and clip to 16 bits.
RECT_FROM_RECTL(rectTrg, pco->rclBounds);
OEClipRect(&rectTrg);
// If this function is changed, need to know that psoTrg
// points to the GDI DIB bitmap in offscreen bitmap case.
// Enumerate the clip rects into a usable form.
RetVal = OEGetIntersectingClipRects(pco, &rectTrg,
CD_ANY, &ClipRects);
if (RetVal == CLIPRECTS_TOO_COMPLEX) {
TRC_NRM((TB, "Clipping is too complex"));
INC_OUTCOUNTER(OUT_PAINT_SDA_COMPLEXCLIP);
goto SendAsSDA;
}
TRC_ASSERT((RetVal != CLIPRECTS_NO_INTERSECTIONS),
(TB,"clipobj for DrvPaint is messed up"));
}
else {
// if ppdev is NULL, we are blt to GDI managed bitmap,
// so, the dhurf of the target surface should be NULL
TRC_ASSERT((pdsurf == NULL),
(TB, "NULL ppdev - psoTrg has non NULL dhsurf"));
TRC_NRM((TB, "NULL ppdev - paint to GDI managed bitmap"));
INC_OUTCOUNTER(OUT_PAINT_UNSENT);
DC_QUIT;
}
if ((psoBitmap->hsurf == ppdev->hsurfFrameBuf) ||
(!(pdsurf->flags & DD_NO_OFFSCREEN))) {
// Send a switch surface PDU if the destination surface is
// different from last drawing order. If we failed to send
// the PDU, we will just have to bail on this drawing order.
if (!OESendSwitchSurfacePDU(ppdev, pdsurf)) {
TRC_ERR((TB, "failed to send the switch surface PDU"));
goto SendAsSDA;
}
} else {
// If noOffscreen flag is on, we will bail on sending
// the client any further offscreen rendering.
// And will send the final offscreen to screen blt as
// regular memblt.
TRC_NRM((TB, "Offscreen blt bail"));
goto SendAsSDA;
}
}
else {
TRC_ERR((TB,"Failed EngPaint call"));
INC_OUTCOUNTER(OUT_PAINT_UNSENT);
DC_QUIT;
}
}
else {
if (pso->iType == STYPE_DEVBITMAP) {
// Surface is non-NULL.
psoBitmap = OEGetSurfObjBitmap(pso, &pdsurf);
// Throw the drawing to GDI first.
rc = EngPaint(psoBitmap, pco, pbo, pptlBrushOrg, mix);
}
else {
TRC_ERR((TB, "Called when disconnected"));
}
goto CalledOnDisconnected;
}
// The low byte of the mix represents a ROP2. We need a ROP3 for
// the paint operation, so convert the mix as follows.
//
// Remember the definitions of 2, 3 & 4 way ROP codes.
//
// Msk Pat Src Dst
//
// 1 1 1 1 --------+------+ ROP2 uses P & D only
// 1 1 1 0 | |
// 1 1 0 1 -+ | | ROP3 uses P, S & D
// 1 1 0 0 |ROP2-1|ROP3 |ROP4
// 1 0 1 1 |(see | | ROP4 uses M, P, S & D
// 1 0 1 0 -+ note)| |
// 1 0 0 1 | |
// 1 0 0 0 --------+ |
// 0 1 1 1 |
// 0 1 1 0 | NOTE: Windows defines its
// 0 1 0 1 | ROP2 codes as the bitwise
// 0 1 0 0 | value calculated here
// 0 0 1 1 | plus one. All other ROP
// 0 0 1 0 | codes are the straight
// 0 0 0 1 | bitwise value.
// 0 0 0 0 ---------------+
//
// Or, algorithmically...
// ROP3 = (ROP2 & 0x3) | ((ROP2 & 0xC) << 4) | (ROP2 << 2)
// ROP4 = (ROP3 << 8) | ROP3
mix = (mix & 0x1F) - 1;
rop3 = (BYTE)((mix & 0x3) | ((mix & 0xC) << 4) | (mix << 2));
// Check if we are allowed to send the ROP3.
if (OESendRop3AsOrder(rop3)) {
// Check for a pattern or true destination BLT.
if (!ROP3_NO_PATTERN(rop3)) {
// Check whether we can encode the PatBlt as an OpaqueRect.
// It must be solid with a PATCOPY rop.
if (pbo->iSolidColor != -1 && rop3 == OE_PATCOPY_ROP) {
if (!OEEncodeOpaqueRect(&rectTrg, pbo, ppdev, &ClipRects)) {
// Something went wrong with the encoding, so skip
// to the end to add this operation to the SDA.
goto SendAsSDA;
}
}
else if (!OEEncodePatBlt(ppdev, pbo, &rectTrg, pptlBrushOrg, rop3,
&ClipRects)) {
// Something went wrong with the encoding, so skip to
// the end to add this operation to the SDA.
goto SendAsSDA;
}
}
else {
if (!OEEncodeDstBlt(&rectTrg, rop3, ppdev, &ClipRects))
goto SendAsSDA;
}
}
else {
TRC_NRM((TB, "Cannot send ROP3 %d", rop3));
INC_OUTCOUNTER(OUT_BITBLT_SDA_NOROP3);
goto SendAsSDA;
}
// Sent the order, skip sending SDA.
goto PostSDA;
SendAsSDA:
// If we reached here we could not send via DrvBitBlt().
// Use EngPaint to paint the screen backdrop then add the area to the SDA.
if (psoBitmap->hsurf == ppdev->hsurfFrameBuf) {
OEClipAndAddScreenDataArea(&rectTrg, pco);
// All done: consider sending the output.
SCH_DDOutputAvailable(ppdev, FALSE);
INC_OUTCOUNTER(OUT_PAINT_SDA);
}
else {
// If we can't send orders for offscreen rendering, we will
// bail offscreen support for the target bitmap.
TRC_ALT((TB, "screen data call for offscreen rendering"));
if (!(pdsurf->flags & DD_NO_OFFSCREEN))
CH_RemoveCacheEntry(sbcOffscreenBitmapCacheHandle,
pdsurf->bitmapId);
}
PostSDA:
CalledOnDisconnected:
DC_EXIT_POINT:
DC_END_FN();
return rc;
}
/****************************************************************************/
// DrvRealizeBrush - see NT DDK documentation.
/****************************************************************************/
BOOL RDPCALL DrvRealizeBrush(
BRUSHOBJ *pbo,
SURFOBJ *psoTarget,
SURFOBJ *psoPattern,
SURFOBJ *psoMask,
XLATEOBJ *pxlo,
ULONG iHatch)
{
PDD_PDEV ppdev = (PDD_PDEV)psoTarget->dhpdev;
BOOL rc = TRUE;
PBYTE pData;
ULONG iBitmapFormat;
#ifdef DC_HICOLOR
BYTE brushBits[192];
BYTE brushIndices[64];
unsigned pelSizeFactor = 1;
UINT32 osColor;
unsigned iColor;
#else
BYTE brushBits[64];
#endif
UINT32 color1;
UINT32 color2;
UINT32 currColor;
INT i, j, currIndex;
BOOL brushSupported = TRUE;
BYTE palette[MAX_UNIQUE_COLORS];
UINT32 brushSupportLevel;
UINT32 colors[MAX_BRUSH_ENCODE_COLORS] = {1, 0};
UINT32 colorCount = 2;
ULONG iBytes = 0;
DC_BEGIN_FN("DrvRealizeBrush");
INC_OUTCOUNTER(OUT_BRUSH_ALL);
// A valid brush satisfies any of the following criteria.
// 1) It is a standard hatch brush (as passed by DrvEnablePDEV).
// 2) It is an 8x8 monochrome bitmap.
// 3) It is an 8x8 color bitmap and the client can support it.
// Check for a Windows standard hatch.
if (iHatch < HS_DDI_MAX) {
TRC_DBG((TB, "Standard hatch %lu", iHatch));
rc = OEStoreBrush(ppdev,
pbo,
BS_HATCHED,
1,
&psoPattern->sizlBitmap,
0,
NULL,
pxlo,
(BYTE)iHatch,
palette,
colors,
colorCount);
INC_OUTCOUNTER(OUT_BRUSH_STANDARD);
//standard brushes count as mono, don't double count
DEC_OUTCOUNTER(OUT_BRUSH_MONO);
DC_QUIT;
}
// If the driver has been passed a dither color brush we can support
// this by sending a solid color brush definition.
if ((iHatch & RB_DITHERCOLOR) != 0) {
TRC_DBG((TB, "Standard hatch %lu", iHatch));
colors[0] = iHatch & 0x00FFFFFF;
rc = OEStoreBrush(ppdev,
pbo,
BS_SOLID,
1,
&psoPattern->sizlBitmap,
0,
NULL,
NULL,
(BYTE)iHatch,
palette,
colors,
colorCount);
INC_OUTCOUNTER(OUT_BRUSH_STANDARD);
//standard brushes count as mono, don't double count
DEC_OUTCOUNTER(OUT_BRUSH_MONO);
DC_QUIT;
}
if ((psoPattern->sizlBitmap.cx == 8) &&
(psoPattern->sizlBitmap.cy == 8))
{
brushSupportLevel = pddShm->sbc.caps.brushSupportLevel;
// NOTE: There's a flag (BMF_TOPDOWN) in psoPattern->fjBitmap
// that's supposed to indicate whether the bitmap is top-down or
// bottom-up, but it is not always set up correctly. In fact, the
// bitmaps are always the wrong way up for our protocol, so we have
// to flip them regardless of the flag. Hence the row numbers are
// reversed ('i' loops) in all the conversions below.
pData = psoPattern->pvScan0;
iBitmapFormat = psoPattern->iBitmapFormat;
#ifdef DC_HICOLOR
// mono brushes are easy, regardless of operating color depth
if (iBitmapFormat == BMF_1BPP) {
// every 8 pixels take a byte @ 1bpp
iBytes = 8;
for (i = 7; i >= 0; i--) {
brushBits[i] = *pData;
pData += psoPattern->lDelta;
}
}
else if (ppdev->cClientBitsPerPel < 15) {
// for 4 and 8 bpp sessions, colors end up as indices regardless
// of the color depth of the brush;
switch (iBitmapFormat) {
case BMF_4BPP:
{
iBitmapFormat = BMF_8BPP;
// Copy over the brush bits at 1 byte / pixel and track
// how many unique colors we have. The vast vast majority
// of brushes are 4 colors or less.
iBytes = 64;
memset(palette, 0, sizeof(palette));
colorCount = 0;
for (i = 7; i >= 0; i--) {
currIndex = i * 8;
for (j = 0; j < 4; j++) {
color1 = XLATEOBJ_iXlate(pxlo, (pData[j] >> 4));
color2 = XLATEOBJ_iXlate(pxlo, (pData[j] & 0x0F));
brushBits[currIndex] = (BYTE) color1;
brushBits[currIndex + 1] = (BYTE) color2;
currIndex += 2;
if (palette[color1] && palette[color2])
continue;
// if possible assign each unique color a four bit index
if (!palette[color1]) {
if (colorCount < MAX_BRUSH_ENCODE_COLORS)
colors[colorCount] = color1;
colorCount++;
palette[color1] = (BYTE) colorCount;
}
if (!palette[color2]) {
if (colorCount < MAX_BRUSH_ENCODE_COLORS)
colors[colorCount] = color2;
colorCount++;
palette[color2] = (BYTE) colorCount;
}
}
pData += psoPattern->lDelta;
}
// The encoding value was set one larger than it should
// have been so adjust it
if (colorCount <= MAX_BRUSH_ENCODE_COLORS) {
for (currColor = 0; currColor < colorCount; currColor++)
palette[colors[currColor]]--;
}
brushSupported = (colorCount <= 2) ||
(brushSupportLevel > TS_BRUSH_DEFAULT);
}
break;
case BMF_24BPP:
case BMF_16BPP:
case BMF_8BPP:
{
// When running at 4/8bpp, the xlateobj will convert the
// Nbpp bitmap pel values to 8bpp palette indices, so we
// just have to
// - set up a multiplier to access the pels correctly
// - fix up the number of bytes in the bitmap
// - lie about the color depth of the bitmap
TRC_DBG((TB, "Examining brush format %d", iBitmapFormat));
if (iBitmapFormat == BMF_24BPP)
pelSizeFactor = 3;
else if (iBitmapFormat == BMF_16BPP)
pelSizeFactor = 2;
else
pelSizeFactor = 1;
iBytes = 64;
iBitmapFormat = BMF_8BPP;
// Copy over the brush bits and track how many unique
// colors we have. The vast vast majority of brushes are
// 4 colors or less.
memset(palette, 0, sizeof(palette));
colorCount = 0;
for (i = 7; i >= 0; i--) {
currIndex = i * 8;
for (j = 0; j < 8; j++) {
osColor = 0;
memcpy(&osColor, &pData[j * pelSizeFactor],
pelSizeFactor);
currColor = XLATEOBJ_iXlate(pxlo, osColor);
TRC_DBG((TB, "This pel: %02x %02x %02x",
(UINT)pData[j * 3],
(UINT)pData[j * 3 + 1],
(UINT)pData[j * 3 + 2] ));
TRC_DBG((TB, "Color %08lx", currColor));
brushBits[currIndex] = (BYTE) currColor;
currIndex++;
// assign each unique color a two bit index
if (palette[currColor]) {
continue;
}
else {
if (colorCount < MAX_BRUSH_ENCODE_COLORS)
colors[colorCount] = currColor;
colorCount++;
palette[currColor] = (BYTE) colorCount;
}
}
pData += psoPattern->lDelta;
}
// The encoding value was set one larger than it should
// have been so adjust it
if (colorCount <= MAX_BRUSH_ENCODE_COLORS) {
for (currColor = 0; currColor < colorCount; currColor++)
palette[colors[currColor]]--;
}
brushSupported = (colorCount <= 2) ||
(brushSupportLevel > TS_BRUSH_DEFAULT);
}
break;
default:
{
// Unsupported brush format.
TRC_ALT((TB, "Brush of unsupported format %d",
(UINT32)psoPattern->iBitmapFormat));
iBytes = 0;
brushSupported = FALSE;
}
break;
}
}
else {
// hicolor makes things a little more complex for us; we have
// to handle and 3 byte color values instead of color indices
switch (iBitmapFormat) {
case BMF_4BPP:
{
// Copy over the brush bits at the correct color depth,
// tracking how many unique colors we have. The vast
// vast majority of brushes are 4 colors or less.
// First set up the correct formats
if (ppdev->cClientBitsPerPel == 24) {
iBitmapFormat = BMF_24BPP;
iBytes = 192;
}
else {
iBitmapFormat = BMF_16BPP;
iBytes = 128;
}
colorCount = 0;
for (i = 7; i >= 0; i--) {
currIndex = i * 8;
for (j = 0; j < 4; j++) {
color1 = XLATEOBJ_iXlate(pxlo, (pData[j] >> 4));
color2 = XLATEOBJ_iXlate(pxlo, (pData[j] & 0x0F));
// we will store each pel twice - once 'as is' and
// once as an index to the in-use color table
if (ppdev->cClientBitsPerPel == 24) {
brushBits[currIndex * 3] =
(TSUINT8)( color1 & 0x000000FF);
brushBits[currIndex * 3 + 1] =
(TSUINT8)((color1 >> 8) & 0x000000FF);
brushBits[currIndex * 3 + 2] =
(TSUINT8)((color1 >> 16)& 0x000000FF);
brushBits[currIndex * 3 + 4] =
(TSUINT8)( color2 & 0x000000FF);
brushBits[currIndex * 3 + 5] =
(TSUINT8)((color2 >> 8) & 0x000000FF);
brushBits[currIndex * 3 + 6] =
(TSUINT8)((color2 >> 16)& 0x000000FF);
}
else {
brushBits[currIndex * 2] =
(TSUINT8)( color1 & 0x00FF);
brushBits[currIndex * 2 + 1] =
(TSUINT8)((color1 >> 8) & 0x00FF);
brushBits[currIndex * 2 + 3] =
(TSUINT8)( color2 & 0x00FF);
brushBits[currIndex * 2 + 4] =
(TSUINT8)((color2 >> 8) & 0x00FF);
}
if (colorCount <= MAX_BRUSH_ENCODE_COLORS) {
// we try to assign each unique color a two bit
// index. We can't just look in the palette
// this time; we have to actually search the
// in-use color table
for (iColor = 0; iColor < colorCount; iColor++) {
if (colors[iColor] == color1)
break;
}
// Did we find the color in the in-use table?
if (iColor < colorCount) {
brushIndices[currIndex] = (BYTE)iColor;
}
else {
// maybe record the new color
if (colorCount < MAX_BRUSH_ENCODE_COLORS) {
colors[colorCount] = color1;
brushIndices[currIndex] = (BYTE)colorCount;
}
TRC_DBG((TB, "New color %08lx", color1));
colorCount++;
}
// update the index
currIndex ++;
for (iColor = 0; iColor < colorCount; iColor++) {
if (colors[iColor] == color2)
break;
}
// Did we find the color in the in-use table?
if (iColor < colorCount) {
brushIndices[currIndex] = (BYTE)iColor;
}
else {
// maybe record the new color
if (colorCount < MAX_BRUSH_ENCODE_COLORS) {
colors[colorCount] = color2;
brushIndices[currIndex] = (BYTE)colorCount;
}
TRC_DBG((TB, "New color %08lx", color2));
colorCount++;
}
currIndex ++;
}
else {
// update the index
currIndex += 2;
}
}
pData += psoPattern->lDelta;
}
TRC_DBG((TB, "Final color count %d", colorCount));
brushSupported = (colorCount <= 2) ||
(brushSupportLevel > TS_BRUSH_DEFAULT);
// Should we use the index versions instead of full RGBs?
if (brushSupported &&
(colorCount <= MAX_BRUSH_ENCODE_COLORS)) {
// yes - copy them over
memcpy(brushBits, brushIndices, 64);
iBytes = 64;
}
}
break;
case BMF_24BPP:
case BMF_16BPP:
case BMF_8BPP:
{
// When running in hicolor, just as for 8bpp, we have to
// set up a multiplier to access the bits correctly and
// fix up the number of bytes in the bitmap and color
// format of the bitmap
//
// The complication is that the xlate object can give us
// 2 or 3 byte color values depending on the session bpp.
// Its not practical to use these to build a color table
// as for the 8bpp case (the color array would have to
// have 16.4 million entries!), so instead we build a
// list of the colors used
TRC_DBG((TB, "Examining brush format %d", iBitmapFormat));
if (iBitmapFormat == BMF_24BPP)
pelSizeFactor = 3;
else if (iBitmapFormat == BMF_16BPP)
pelSizeFactor = 2;
else
pelSizeFactor = 1;
// now set up the converted formats
if (ppdev->cClientBitsPerPel == 24) {
iBitmapFormat = BMF_24BPP;
iBytes = 192;
}
else {
iBitmapFormat = BMF_16BPP;
iBytes = 128;
}
// Copy over the brush bits and track how many unique colors
// we have. The vast vast majority of brushes are 4 colors
// or less.
colorCount = 0;
for (i = 7; i >= 0; i--) {
currIndex = i * 8;
for (j = 0; j < 8; j++) {
osColor = 0;
memcpy(&osColor,
&pData[j * pelSizeFactor],
pelSizeFactor);
currColor = XLATEOBJ_iXlate(pxlo, osColor);
TRC_DBG((TB, "OS Color : %08lx", osColor));
TRC_DBG((TB, "Color : %08lx", currColor));
// we will store each pel twice - once 'as is' and
// once as an index to the in-use color table
if (ppdev->cClientBitsPerPel == 24) {
brushBits[currIndex * 3] =
(TSUINT8)( currColor & 0x000000FF);
brushBits[currIndex * 3 + 1] =
(TSUINT8)((currColor >> 8) & 0x000000FF);
brushBits[currIndex * 3 + 2] =
(TSUINT8)((currColor >> 16)& 0x000000FF);
TRC_DBG((TB, "This pel : %02x %02x %02x",
(UINT)pData[j * pelSizeFactor],
(UINT)pData[j * pelSizeFactor + 1],
(UINT)pData[j * pelSizeFactor + 2] ));
TRC_DBG((TB, "Brush bits: %02x %02x %02x",
(UINT)brushBits[currIndex * 3],
(UINT)brushBits[currIndex * 3 + 1],
(UINT)brushBits[currIndex * 3 + 2] ));
}
else {
brushBits[currIndex * 2] =
(TSUINT8)( currColor & 0x00FF);
brushBits[currIndex * 2 + 1] =
(TSUINT8)((currColor >> 8) & 0x00FF);
TRC_DBG((TB, "This pel : %02x %02x",
(UINT)pData[j * pelSizeFactor],
(UINT)pData[j * pelSizeFactor + 1] ));
TRC_DBG((TB, "Brush bits: %02x %02x",
(UINT)brushBits[currIndex * 2],
(UINT)brushBits[currIndex * 2 + 1] ));
}
if (colorCount <= MAX_BRUSH_ENCODE_COLORS) {
// we try to assign each unique color a two bit
// index. We can't just look in the palette
// this time; we have to actually search the
// in-use color table
for (iColor = 0; iColor < colorCount; iColor++) {
if (colors[iColor] == currColor)
break; // from for loop
}
// Did we find the color in the in-use table?
if (iColor < colorCount) {
brushIndices[currIndex] = (BYTE)iColor;
// safe to update the index now
currIndex++;
continue; // next j
}
// maybe record the new color
if (colorCount < MAX_BRUSH_ENCODE_COLORS) {
colors[colorCount] = currColor;
brushIndices[currIndex] = (BYTE)colorCount;
}
TRC_DBG((TB, "New color %08lx", currColor));
colorCount++;
}
// safe to update the index now
currIndex++;
} // next j
pData += psoPattern->lDelta;
} // next i
TRC_DBG((TB, "Final color count %d", colorCount));
brushSupported = (colorCount <= 2) ||
(brushSupportLevel > TS_BRUSH_DEFAULT);
// Should we use the index versions instead of full RGBs?
if (brushSupported &&
(colorCount <= MAX_BRUSH_ENCODE_COLORS)) {
// yes - copy them over
memcpy(brushBits, brushIndices, 64);
iBytes = 64;
}
}
break;
default:
{
// Unsupported brush format.
TRC_ALT((TB, "Brush of unsupported format %d",
(UINT32)psoPattern->iBitmapFormat));
iBytes = 0;
brushSupported = FALSE;
}
break;
}
}
#else
switch (psoPattern->iBitmapFormat)
{
case BMF_1BPP:
{
// every 8 pixels take a byte @ 1bpp
iBytes = 8;
for (i = 7; i >= 0; i--) {
brushBits[i] = *pData;
pData += psoPattern->lDelta;
}
}
break;
case BMF_4BPP:
{
// Copy over the brush bits at 1 byte / pixel and track how many
// unique colors we have. The vast vast majority of brushes are
// 4 colors or less.
iBytes = 64;
memset(palette, 0, sizeof(palette));
colorCount = 0;
for (i = 7; i >= 0; i--) {
currIndex = i * 8;
for (j = 0; j < 4; j++) {
color1 = XLATEOBJ_iXlate(pxlo, (pData[j] >> 4));
color2 = XLATEOBJ_iXlate(pxlo, (pData[j] & 0x0F));
brushBits[currIndex] = (BYTE) color1;
brushBits[currIndex + 1] = (BYTE) color2;
currIndex += 2;
if (palette[color1] && palette[color2])
continue;
// If possible assign each unique color a two bit index
if (!palette[color1]) {
if (colorCount < MAX_BRUSH_ENCODE_COLORS)
colors[colorCount] = color1;
colorCount++;
palette[color1] = (BYTE) colorCount;
}
if (!palette[color2]) {
if (colorCount < MAX_BRUSH_ENCODE_COLORS)
colors[colorCount] = color2;
colorCount++;
palette[color2] = (BYTE) colorCount;
}
}
pData += psoPattern->lDelta;
}
// The encoding value was set one larger than it should
// have been so adjust it
if (colorCount <= MAX_BRUSH_ENCODE_COLORS) {
for (currColor = 0; currColor < colorCount; currColor++) {
palette[colors[currColor]]--;
}
}
brushSupported = (colorCount <= 2) ||
(brushSupportLevel > TS_BRUSH_DEFAULT);
}
break;
case BMF_8BPP:
{
// Copy over the brush bits and track how many unique colors
// we have. The vast vast majority of brushes are 4 colors
// or less.
iBytes = 64;
memset(palette, 0, sizeof(palette));
colorCount = 0;
for (i = 7; i >= 0; i--) {
currIndex = i * 8;
for (j = 0; j < 8; j++) {
currColor = XLATEOBJ_iXlate(pxlo, pData[j]);
brushBits[currIndex] = (BYTE) currColor;
currIndex++;
// assign each unique color a two bit index
if (palette[currColor]) {
continue;
}
else {
if (colorCount < MAX_BRUSH_ENCODE_COLORS)
colors[colorCount] = currColor;
colorCount++;
palette[currColor] = (BYTE) colorCount;
}
}
pData += psoPattern->lDelta;
}
// The encoding value was set one larger than it should
// have been so adjust it
if (colorCount <= MAX_BRUSH_ENCODE_COLORS) {
for (currColor = 0; currColor < colorCount; currColor++)
palette[colors[currColor]]--;
}
brushSupported = (colorCount <= 2) ||
(brushSupportLevel > TS_BRUSH_DEFAULT);
}
break;
default:
{
// Unsupported colour depth.
iBytes = 0;
brushSupported = FALSE;
}
break;
}
#endif
}
else {
iBitmapFormat = psoPattern->iBitmapFormat;
// The brush is the wrong size or requires dithering and so cannot
// be sent over the wire.
#ifdef DC_HICOLOR
TRC_ALT((TB, "Non-8x8 or dithered brush"));
#endif
brushSupported = FALSE;
}
// Store the brush.
if (brushSupported) {
if (colorCount <= 2)
INC_OUTCOUNTER(OUT_BRUSH_MONO);
// Store the brush - note that if we have a monochrome brush the
// color bit is set up so that 0 = color2 and 1 = color1. This
// actually corresponds to 0 = fg and 1 = bg for the protocol
// colors.
TRC_DBG((TB, "Storing brush: type %d bg %x fg %x",
psoPattern->iBitmapFormat,
colors[0],
colors[1]));
rc = OEStoreBrush(ppdev,
pbo,
BS_PATTERN,
iBitmapFormat,
&psoPattern->sizlBitmap,
iBytes,
brushBits,
pxlo,
0,
palette,
colors,
colorCount);
}
else
{
if (!iBytes) {
TRC_ALT((TB, "Rejected brush h %08lx s (%ld, %ld) fmt %lu",
iHatch,
psoPattern != NULL ? psoPattern->sizlBitmap.cx : 0,
psoPattern != NULL ? psoPattern->sizlBitmap.cy : 0,
psoPattern != NULL ? psoPattern->iBitmapFormat : 0));
}
rc = OEStoreBrush(ppdev, pbo, BS_NULL, iBitmapFormat,
&psoPattern->sizlBitmap, iBytes, brushBits, pxlo,
0, NULL, NULL, 0);
INC_OUTCOUNTER(OUT_BRUSH_REJECTED);
}
DC_EXIT_POINT:
DC_END_FN();
return rc;
}
/****************************************************************************/
// OE_RectIntersectsSDA
//
// Returns nonzero if the supplied exclusive rect intersects any of the
// current screen data areas.
/****************************************************************************/
BOOL RDPCALL OE_RectIntersectsSDA(PRECTL pRect)
{
RECTL aBoundRects[BA_MAX_ACCUMULATED_RECTS];
unsigned cBounds;
BOOL fIntersection = FALSE;
unsigned i;
DC_BEGIN_FN("OE_RectIntersectsSDA");
// Fetch the current Screen Data Area (SDA). It is returned in
// virtual desktop (inclusive) coordinates.
BA_QueryBounds(aBoundRects, &cBounds);
// Loop through each of the bounding rectangles checking for
// an intersection with the supplied rectangle.
// Note we use '<' for pRect->right and pRect->bottom because *pRect is
// in exclusive coords.
for (i = 0; i < cBounds; i++) {
if (aBoundRects[i].left < pRect->right &&
aBoundRects[i].top < pRect->bottom &&
aBoundRects[i].right > pRect->left &&
aBoundRects[i].bottom > pRect->top) {
TRC_NRM((TB, "ExclRect(%d,%d)(%d,%d) intersects SDA(%d,%d)(%d,%d)",
pRect->left, pRect->top, pRect->right, pRect->bottom,
aBoundRects[i].left, aBoundRects[i].top,
aBoundRects[i].right, aBoundRects[i].bottom));
fIntersection = TRUE;
break;
}
}
DC_END_FN();
return fIntersection;
}