/* Copyright (c) 1996, 2013, Oracle and/or its affiliates. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
/*
* TransOvl.c - the client side interface to the Transparent Overlays
* extension.
*/
#define NEED_EVENTS
#define NEED_REPLIES
#include <X11/Xlibint.h>
#include <X11/Xutil.h>
#include <X11/extensions/extutil.h>
#include <X11/extensions/transovlstr.h>
#include <X11/extensions/multibuf.h>
#include <limits.h>
typedef struct {
XExtData extdata;
int numVisPairs;
Bool pairsRestricted;
int visdatatypes;
} XOvlScrExtData;
typedef struct {
VisualID vid;
Visual *vis;
int depth;
} XOvlVisInfo;
typedef struct {
XOvlVisInfo overlay;
XOvlVisInfo underlay;
} XOvlVisPair;
#ifdef _LP64
#define XOvlMBXBuffers (1L << 0)
#define XOvlSharedPixels (1L << 1)
#define XOvlSharedColors (1L << 2)
#define XOVL_MAX_BUFFERS (~0L)
#define XOVL_ALL_PLANES (~0L)
#define XOVL_ANY_POOL (~0L)
#else /* _LP64 */
#define XOvlMBXBuffers (1 << 0)
#define XOvlSharedPixels (1 << 1)
#define XOvlSharedColors (1 << 2)
#define XOVL_MAX_BUFFERS (~0)
#define XOVL_ALL_PLANES (~0)
#define XOVL_ANY_POOL (~0)
#endif /* _LP64 */
typedef struct {
XExtData extdata;
int datatypes;
int numBuffers;
unsigned long ovplanes;
unsigned long unplanes;
unsigned long clutpool;
int clutcount;
} XOvlVisExtData;
typedef struct {
XExtData extdata;
XSolarisOvlPaintType paintType;
} XOvlGCExtData;
typedef struct {
int screen;
XOvlVisInfo candidate;
XOvlVisInfo partner;
Bool partnerpreferred;
XSolarisOvlSelectType searchtype;
unsigned long hardfailures;
unsigned long softfailures;
int numhardfailures;
int numsoftfailures;
} XOvlVisualMatch;
typedef struct {
int nDepths;
Depth *pDepths;
int depth;
int nVisuals;
Visual *pVisuals;
} XOvlVisEnumData;
static int close_display();
static XExtensionInfo *ext_info;
static char *ext_name = OVLNAME;
static XExtensionHooks ext_hooks = {
NULL, /* create_gc */
NULL, /* copy_gc */
NULL, /* flush_gc */
NULL, /* free_gc */
NULL, /* create_font */
NULL, /* free_font */
close_display, /* close_display */
NULL, /* wire_to_event */
NULL, /* event_to_wire */
NULL, /* error */
NULL, /* error_string */
};
static
XEXT_GENERATE_CLOSE_DISPLAY(close_display,
ext_info)
static
XEXT_GENERATE_FIND_DISPLAY(find_display,
ext_info, ext_name, &ext_hooks,
OvlNumberEvents, NULL)
#define OvlCheckExtension(dpy,i,val) \
XextCheckExtension (dpy, i, ext_name, val)
#define OvlSimpleCheckExtension(dpy,i) \
XextSimpleCheckExtension (dpy, i, ext_name)
/**********************************************************************/
/*
* The utility function _XVIDtoVisual could be used, but we already
* know the screen structure where the visual is to be found, so there
* is no need to scan all the screens on the display. This procedure
* performs a more direct scan for the visual.
*/
static Bool
find_visual(
Screen *scr,
VisualID vid,
Visual **visReturn,
int *depthReturn
)
{
Depth *depth;
Visual *vis;
for (depth = scr->depths; depth < (scr->depths + scr->ndepths); depth++) {
if (depth->visuals) {
for (vis = depth->visuals;
vis < (depth->visuals + depth->nvisuals);
vis++)
{
if (vis->visualid == vid) {
*visReturn = vis;
*depthReturn = depth->depth;
return True;
}
}
}
}
return False;
}
static void
vis_enum_init(
Screen *scr,
XOvlVisEnumData *visEnumData
)
{
visEnumData->nDepths = scr->ndepths;
visEnumData->pDepths = scr->depths;
visEnumData->depth = 0;
visEnumData->nVisuals = 0;
visEnumData->pVisuals = NULL;
}
static Bool
vis_enum_next(
XOvlVisEnumData *visEnumData,
Visual **visReturn,
int *depthReturn
)
{
int ndepths;
Depth *depth;
if (!visEnumData->nVisuals) {
ndepths = visEnumData->nDepths;
depth = visEnumData->pDepths;
while (ndepths) {
if (depth->visuals) {
break;
}
ndepths--;
depth++;
}
if (!ndepths) {
return False;
}
visEnumData->nDepths = ndepths - 1;
visEnumData->pDepths = depth + 1;
visEnumData->depth = depth->depth;
visEnumData->nVisuals = depth->nvisuals;
visEnumData->pVisuals = depth->visuals;
}
visEnumData->nVisuals--;
*visReturn = visEnumData->pVisuals++;
*depthReturn = visEnumData->depth;
return True;
}
static XOvlScrExtData *
find_screendata(
Display *dpy,
int screen,
XExtDisplayInfo *info
)
{
XOvlScrExtData *scrextdata;
Screen *scr;
xOvlGetPartnersReq *req;
xOvlGetPartnersReply rep;
unsigned long nbytes;
unsigned long numPairs;
XOvlVisPair *vispairs,
*vispair;
XOvlVidPair vidpair;
XEDataObject obj;
obj.screen = scr = ScreenOfDisplay(dpy, screen);
scrextdata = (XOvlScrExtData *)
XFindOnExtensionList(XEHeadOfExtensionList(obj),
info->codes->extension);
if (!scrextdata) {
GetReq(OvlGetPartners, req);
req->reqType = info->codes->major_opcode;
req->ovlReqType = X_OvlGetPartners;
req->screen = screen;
if (_XReply(dpy, (xReply *)(&rep), 0, xFalse)) {
numPairs = rep.numPairs;
nbytes = numPairs * sizeof(XOvlVisPair);
scrextdata = Xmalloc(sizeof(XOvlScrExtData));
vispairs = (XOvlVisPair *)Xmalloc(nbytes);
if (scrextdata && vispairs) {
scrextdata->extdata.number = info->codes->extension;
scrextdata->extdata.free_private = NULL;
scrextdata->extdata.private_data = (char *)vispairs;
scrextdata->numVisPairs = rep.numPairs;
scrextdata->pairsRestricted = rep.restricted;
/* BugId: 4126680 - Purify detects reads in uninitialized
memory generating random results. culprit was id'd to
be the uninitialized field visdatatypes */
scrextdata->visdatatypes = 0;
vispair = vispairs;
while (numPairs--) {
_XRead(dpy, (char *)(&vidpair), sizeof(vidpair));
vispair->overlay.vid = vidpair.overlayVid;
vispair->underlay.vid = vidpair.underlayVid;
if ( !find_visual(scr, vidpair.overlayVid,
&vispair->overlay.vis,
&vispair->overlay.depth)
|| !find_visual(scr, vidpair.underlayVid,
&vispair->underlay.vis,
&vispair->underlay.depth))
{
Xfree(vispairs);
Xfree(scrextdata);
scrextdata = NULL;
if (numPairs) {
nbytes = numPairs * sizeof(XOvlVidPair);
_XEatData(dpy, nbytes);
}
break;
}
vispair++;
}
if (scrextdata) {
XAddToExtensionList(XEHeadOfExtensionList(obj),
&(scrextdata->extdata));
}
} else {
Xfree(scrextdata);
Xfree(vispairs);
nbytes = numPairs * sizeof(XOvlVidPair);
_XEatData(dpy, nbytes);
scrextdata = NULL;
}
}
}
return scrextdata;
}
static XOvlVisExtData *
find_visdata(
Visual *vis,
XExtDisplayInfo *info
)
{
XOvlVisExtData *visextdata;
XEDataObject obj;
obj.visual = vis;
visextdata = (XOvlVisExtData *)
XFindOnExtensionList(XEHeadOfExtensionList(obj),
info->codes->extension);
if (!visextdata) {
visextdata = Xmalloc(sizeof(XOvlVisExtData));
if (visextdata) {
visextdata->extdata.number = info->codes->extension;
visextdata->extdata.free_private = NULL;
visextdata->extdata.private_data = NULL;
visextdata->datatypes = 0;
XAddToExtensionList(XEHeadOfExtensionList(obj),
&(visextdata->extdata));
}
}
return visextdata;
}
static int
bitcount(
unsigned long mask
)
{
int count;
count = 0;
while (mask) {
count++;
mask &= (mask - 1);
}
return count;
}
static int
GetNumMBXBuffers(
Display *dpy,
int screen,
Visual *candidateVis,
XExtDisplayInfo *info)
{
XOvlVisExtData *candidateData;
XOvlScrExtData *scrextdata;
int i,
nmono,
nstereo;
XmbufBufferInfo *mono_info,
*stereo_info;
Visual *vis;
int depth;
XOvlVisExtData *visextdata;
Screen *scr;
candidateData = find_visdata(candidateVis, info);
if (!candidateData) {
/*
* Cannot store data for this visual, assume the worst case.
*/
return 0;
}
if (!(candidateData->datatypes & XOvlMBXBuffers)) {
scrextdata = find_screendata(dpy, screen, info);
if (!(scrextdata->visdatatypes & XOvlMBXBuffers)) {
/*
* We haven't queried the MBX extension for the buffer
* data on this screen yet. Call XmbufGetScreenInfo
* and fill in the data for all the returned visuals.
*/
scr = ScreenOfDisplay(dpy, screen);
scrextdata->visdatatypes |= XOvlMBXBuffers;
XmbufGetScreenInfo(dpy, RootWindow(dpy, screen),
&nmono, &mono_info,
&nstereo, &stereo_info);
for (i = 0; i < nmono; i++) {
if (find_visual(scr, mono_info[i].visualid, &vis, &depth)) {
visextdata = find_visdata(vis, info);
if (visextdata) {
visextdata->numBuffers = mono_info[i].max_buffers;
if (!visextdata->numBuffers) {
visextdata->numBuffers = XOVL_MAX_BUFFERS;
}
visextdata->datatypes |= XOvlMBXBuffers;
} else {
/*
* We were unable to finish the query, so mark
* the data as unqueried so we can try again later.
*/
scrextdata->visdatatypes &= ~XOvlMBXBuffers;
}
}
}
XFree(mono_info);
XFree(stereo_info);
}
if (!(candidateData->datatypes & XOvlMBXBuffers)) {
/*
* No data was returned from MBX for this visual,
* so fill in a default value. Only mark the
* data valid if the server query completed.
*/
candidateData->numBuffers = 0;
if (scrextdata->visdatatypes & XOvlMBXBuffers) {
candidateData->datatypes |= XOvlMBXBuffers;
}
}
}
return candidateData->numBuffers;
}
static Bool
CheckSharedPixels(
Display *dpy,
int screen,
XSolarisOvlSelectType searchtype,
Visual *candidateVis,
Visual *partnerVis,
XExtDisplayInfo *info)
{
XOvlVisExtData *candidateData,
*partnerData;
XOvlScrExtData *scrextdata;
Screen *scr;
xOvlGetSharedPixelsReq *req;
xOvlGetSharedPixelsReply rep;
unsigned int i;
XOvlPGInfo pginfo;
Visual *vis;
int depth;
XOvlVisExtData *visextdata;
unsigned long commonplanes;
candidateData = find_visdata(candidateVis, info);
partnerData = find_visdata(partnerVis, info);
if (!candidateData || !partnerData) {
/*
* Cannot store data for these visuals, assume the worst case.
*/
return True;
}
if ( !(candidateData->datatypes & XOvlSharedPixels)
|| !( partnerData->datatypes & XOvlSharedPixels))
{
scrextdata = find_screendata(dpy, screen, info);
if (!(scrextdata->visdatatypes & XOvlSharedPixels)) {
/*
* We haven't queried the server for plane group data
* on this screen yet. Send the query and fill in
* the data for the visuals indicated in the reply.
*/
scr = ScreenOfDisplay(dpy, screen);
scrextdata->visdatatypes |= XOvlSharedPixels;
GetReq(OvlGetSharedPixels, req);
req->reqType = info->codes->major_opcode;
req->ovlReqType = X_OvlGetSharedPixels;
req->screen = screen;
if (_XReply(dpy, (xReply *)(&rep), 0, xFalse)) {
for (i = 0; i < rep.numPGInfos; i++) {
_XRead(dpy, (char *)(&pginfo), sizeof(pginfo));
if (find_visual(scr, pginfo.vid, &vis, &depth)) {
visextdata = find_visdata(vis, info);
if (visextdata) {
visextdata->ovplanes = pginfo.ovplanes;
visextdata->unplanes = pginfo.unplanes;
visextdata->datatypes |= XOvlSharedPixels;
} else {
/*
* We were unable to finish the query, so mark
* the data as unqueried so we can try again later.
*/
scrextdata->visdatatypes &= ~XOvlSharedPixels;
}
}
}
}
}
if (!(candidateData->datatypes & XOvlSharedPixels)) {
/*
* No data was returned from the server for this
* visual, so fill in a default value. Only mark
* the data valid if the server query completed.
*/
candidateData->ovplanes = XOVL_ALL_PLANES;
candidateData->unplanes = XOVL_ALL_PLANES;
if (scrextdata->visdatatypes & XOvlSharedPixels) {
candidateData->datatypes |= XOvlSharedPixels;
}
}
if (!(partnerData->datatypes & XOvlSharedPixels)) {
/*
* No data was returned from the server for this
* visual, so fill in a default value. Only mark
* the data valid if the server query completed.
*/
partnerData->ovplanes = XOVL_ALL_PLANES;
partnerData->unplanes = XOVL_ALL_PLANES;
if (scrextdata->visdatatypes & XOvlSharedPixels) {
partnerData->datatypes |= XOvlSharedPixels;
}
}
}
if (searchtype == XSolarisOvlSelectBestOverlay) {
commonplanes = candidateData->ovplanes & partnerData->unplanes;
} else {
commonplanes = candidateData->unplanes & partnerData->ovplanes;
}
return commonplanes ? True : False;
}
static Bool
CheckSharedColors(
Display *dpy,
int screen,
Visual *candidateVis,
Visual *partnerVis,
XExtDisplayInfo *info)
{
XOvlVisExtData *candidateData,
*partnerData;
XOvlScrExtData *scrextdata;
Screen *scr;
xOvlGetSharedColorsReq *req;
xOvlGetSharedColorsReply rep;
unsigned int i;
XOvlClutInfo clutinfo;
Visual *vis;
int depth;
XOvlVisExtData *visextdata;
candidateData = find_visdata(candidateVis, info);
partnerData = find_visdata(partnerVis, info);
if (!candidateData || !partnerData) {
/*
* Cannot store data for these visuals, assume the worst case.
*/
return True;
}
if ( !(candidateData->datatypes & XOvlSharedColors)
|| !( partnerData->datatypes & XOvlSharedColors))
{
scrextdata = find_screendata(dpy, screen, info);
if (!(scrextdata->visdatatypes & XOvlSharedColors)) {
/*
* We haven't queried the server for clut pool data
* on this screen yet. Send the query and fill in
* the data for the visuals indicated in the reply.
*/
scr = ScreenOfDisplay(dpy, screen);
scrextdata->visdatatypes |= XOvlSharedColors;
GetReq(OvlGetSharedColors, req);
req->reqType = info->codes->major_opcode;
req->ovlReqType = X_OvlGetSharedColors;
req->screen = screen;
if (_XReply(dpy, (xReply *)(&rep), 0, xFalse)) {
for (i = 0; i < rep.numClutInfos; i++) {
_XRead(dpy, (char *)(&clutinfo), sizeof(clutinfo));
if (find_visual(scr, clutinfo.vid, &vis, &depth)) {
visextdata = find_visdata(vis, info);
if (visextdata) {
visextdata->clutpool = (1 << clutinfo.pool);
visextdata->clutcount = clutinfo.count;
visextdata->datatypes |= XOvlSharedColors;
} else {
/*
* We were unable to finish the query, so mark
* the data as unqueried so we can try again later.
*/
scrextdata->visdatatypes &= ~XOvlSharedColors;
}
}
}
}
}
if (!(candidateData->datatypes & XOvlSharedColors)) {
/*
* No data was returned from the server for this
* visual, so fill in a default value. Only mark
* the data valid if the server query completed.
*/
candidateData->clutpool = XOVL_ANY_POOL;
candidateData->clutcount = 1;
if (scrextdata->visdatatypes & XOvlSharedColors) {
candidateData->datatypes |= XOvlSharedColors;
}
}
if (!(partnerData->datatypes & XOvlSharedColors)) {
/*
* No data was returned from the server for this
* visual, so fill in a default value. Only mark
* the data valid if the server query completed.
*/
partnerData->clutpool = XOVL_ANY_POOL;
partnerData->clutcount = 1;
if (scrextdata->visdatatypes & XOvlSharedColors) {
partnerData->datatypes |= XOvlSharedColors;
}
}
}
return ( (candidateData->clutpool & partnerData->clutpool)
&& candidateData->clutcount <= 1)
? True
: False;
}
static void
ComputeVisualMatch(
Display *dpy,
XOvlVisualMatch *match,
XSolarisOvlVisualCriteria *pCriteria,
XExtDisplayInfo *info)
{
Visual *vis = match->candidate.vis;
unsigned long hardmask,
softmask,
mask;
unsigned long hardfailures,
softfailures;
hardmask = pCriteria->hardCriteriaMask;
softmask = pCriteria->softCriteriaMask;
mask = hardmask | softmask;
hardfailures = 0;
softfailures = 0;
if ( (mask & XSolarisOvlVisualClass)
&& (vis->class != pCriteria->c_class))
{
hardfailures |= hardmask & XSolarisOvlVisualClass;
softfailures |= softmask & XSolarisOvlVisualClass;
}
if ( (mask & XSolarisOvlDepth)
&& (match->candidate.depth != pCriteria->depth))
{
hardfailures |= hardmask & XSolarisOvlDepth;
softfailures |= softmask & XSolarisOvlDepth;
}
if ( (mask & XSolarisOvlMinColors)
&& (vis->map_entries < pCriteria->minColors))
{
hardfailures |= hardmask & XSolarisOvlMinColors;
softfailures |= softmask & XSolarisOvlMinColors;
}
if ( (mask & XSolarisOvlMinRed)
&& ((1 << bitcount(vis->red_mask)) < pCriteria->minRed))
{
hardfailures |= hardmask & XSolarisOvlMinRed;
softfailures |= softmask & XSolarisOvlMinRed;
}
if ( (mask & XSolarisOvlMinGreen)
&& ((1 << bitcount(vis->green_mask)) < pCriteria->minGreen))
{
hardfailures |= hardmask & XSolarisOvlMinGreen;
softfailures |= softmask & XSolarisOvlMinGreen;
}
if ( (mask & XSolarisOvlMinBlue)
&& ((1 << bitcount(vis->blue_mask)) < pCriteria->minBlue))
{
hardfailures |= hardmask & XSolarisOvlMinBlue;
softfailures |= softmask & XSolarisOvlMinBlue;
}
if ( (mask & XSolarisOvlMinBitsPerRGB)
&& (vis->bits_per_rgb < pCriteria->minBitsPerRGB))
{
hardfailures |= hardmask & XSolarisOvlMinBitsPerRGB;
softfailures |= softmask & XSolarisOvlMinBitsPerRGB;
}
if ( (mask & XSolarisOvlMinBuffers)
&& ( GetNumMBXBuffers(dpy, match->screen, vis, info)
< pCriteria->minBuffers))
{
hardfailures |= hardmask & XSolarisOvlMinBuffers;
softfailures |= softmask & XSolarisOvlMinBuffers;
}
if ( (mask & XSolarisOvlUnsharedPixels)
&& CheckSharedPixels(dpy, match->screen, match->searchtype,
vis, match->partner.vis, info))
{
hardfailures |= hardmask & XSolarisOvlUnsharedPixels;
softfailures |= softmask & XSolarisOvlUnsharedPixels;
}
if ( (mask & XSolarisOvlUnsharedColors)
&& CheckSharedColors(dpy, match->screen,
vis, match->partner.vis, info))
{
hardfailures |= hardmask & XSolarisOvlUnsharedColors;
softfailures |= softmask & XSolarisOvlUnsharedColors;
}
if ( (mask & XSolarisOvlPreferredPartner)
&& (!match->partnerpreferred))
{
hardfailures |= hardmask & XSolarisOvlPreferredPartner;
softfailures |= softmask & XSolarisOvlPreferredPartner;
}
match->hardfailures = hardfailures;
match->numhardfailures = bitcount(hardfailures);
match->softfailures = softfailures;
match->numsoftfailures = bitcount(softfailures);
}
#define XSolarisOvlAllCriteria \
(XSolarisOvlVisualClass | \
XSolarisOvlDepth | \
XSolarisOvlMinColors | \
XSolarisOvlMinRed | \
XSolarisOvlMinGreen | \
XSolarisOvlMinBlue | \
XSolarisOvlMinBitsPerRGB | \
XSolarisOvlMinBuffers | \
XSolarisOvlUnsharedPixels | \
XSolarisOvlUnsharedColors | \
XSolarisOvlPreferredPartner)
static void
SetWorstMatch(
XOvlVisualMatch *match
)
{
match->hardfailures = XSolarisOvlAllCriteria;
match->softfailures = XSolarisOvlAllCriteria;
match->numhardfailures =
match->numsoftfailures =
bitcount(XSolarisOvlAllCriteria);
}
#define IsPerfectMatch(pm) (!((pm)->hardfailures | (pm)->softfailures))
#define IsQualifiedMatch(pm) (!(pm)->hardfailures)
#define IsBetterMatch(pm1, pm2) \
( ((pm1)->numhardfailures < (pm2)->numhardfailures) \
|| ( ((pm1)->numhardfailures == (pm2)->numhardfailures) \
&& ((pm1)->numsoftfailures < (pm2)->numsoftfailures)))
#define IsPerfectPair(povm, punm) \
(IsPerfectMatch(povm) && IsPerfectMatch(punm))
#define IsQualifiedPair(povm, punm) \
(IsQualifiedMatch(povm) && IsQualifiedMatch(punm))
#define IsBetterPair(povm1, punm1, povm2, punm2) \
( ( ((povm1)->numhardfailures + (punm1)->numhardfailures) \
< ((povm2)->numhardfailures + (punm2)->numhardfailures)) \
|| ( ( ((povm1)->numhardfailures + (punm1)->numhardfailures) \
== ((povm2)->numhardfailures + (punm2)->numhardfailures)) \
&& ( ((povm1)->numsoftfailures + (punm1)->numsoftfailures) \
< ((povm2)->numsoftfailures + (punm2)->numsoftfailures))))
static void
set_visinfo(
XVisualInfo *visinfoReturn,
XOvlVisualMatch *match
)
{
Visual *vis = match->candidate.vis;
visinfoReturn->visual = vis;
visinfoReturn->visualid = match->candidate.vid;
visinfoReturn->screen = match->screen;
visinfoReturn->depth = match->candidate.depth;
visinfoReturn->class = vis->class;
visinfoReturn->red_mask = vis->red_mask;
visinfoReturn->green_mask = vis->green_mask;
visinfoReturn->blue_mask = vis->blue_mask;
visinfoReturn->colormap_size = vis->map_entries;
visinfoReturn->bits_per_rgb = vis->bits_per_rgb;
}
/**********************************************************************/
Bool
XSolarisOvlQueryExtension(
Display *dpy,
int *event_basep,
int *error_basep
)
{
XExtDisplayInfo *info = find_display(dpy);
if (XextHasExtension(info)) {
*event_basep = info->codes->first_event;
*error_basep = info->codes->first_error;
return True;
} else {
return False;
}
}
Status
XSolarisOvlQueryVersion(
Display *dpy,
int *major_versionp,
int *minor_versionp)
{
XExtDisplayInfo *info = find_display(dpy);
xOvlQueryVersionReply rep;
xOvlQueryVersionReq *req;
OvlCheckExtension(dpy, info, 0);
LockDisplay(dpy);
GetReq(OvlQueryVersion, req);
req->reqType = info->codes->major_opcode;
req->ovlReqType = X_OvlQueryVersion;
if (!_XReply(dpy, (xReply *)(&rep), 0, xTrue)) {
UnlockDisplay(dpy);
SyncHandle();
return 0;
}
*major_versionp = rep.majorVersion;
*minor_versionp = rep.minorVersion;
UnlockDisplay(dpy);
SyncHandle();
return 1;
}
Window
XSolarisOvlCreateWindow(
Display *dpy,
Window parent,
int x,
int y,
unsigned int width,
unsigned int height,
unsigned int border_width,
int depth,
unsigned int class,
Visual *visual,
unsigned long valuemask,
XSetWindowAttributes *attr
)
{
XExtDisplayInfo *info = find_display(dpy);
Window wid;
xOvlCreateWindowReq *req;
/*
* REMIND: Is there a proper return value to indicate error?
*/
OvlCheckExtension(dpy, info, (Window) 0);
LockDisplay(dpy);
GetReq(OvlCreateWindow, req);
req->reqType = info->codes->major_opcode;
req->ovlReqType = X_OvlCreateWindow;
req->parent = parent;
req->x = x;
req->y = y;
req->width = width;
req->height = height;
req->borderWidth = border_width;
req->depth = depth;
req->class = class;
if (visual == CopyFromParent) {
req->visual = CopyFromParent;
} else {
req->visual = visual->visualid;
}
wid = req->wid = XAllocID(dpy);
valuemask &= AllMaskBits;
if (req->mask = valuemask) {
/* BugId 4130905 - There were only 3 args to this call instead of 4 -
the last argument attr was missing - causing Bad Xerror Request. When
the client lin libXext was recompiled, the bus error caused the
client code to fail. Big change between 2.6 and 2.7 file. */
_XProcessWindowAttributes(dpy, (xChangeWindowAttributesReq *)req,
valuemask, attr);
}
UnlockDisplay(dpy);
SyncHandle();
return wid;
}
Bool
XSolarisOvlIsOverlayWindow(
Display *dpy,
Window w
)
{
XExtDisplayInfo *info = find_display(dpy);
xOvlIsOverlayWindowReq *req;
xOvlIsOverlayWindowReply rep;
OvlCheckExtension(dpy, info, False);
LockDisplay(dpy);
GetReq(OvlIsOverlayWindow, req);
req->reqType = info->codes->major_opcode;
req->ovlReqType = X_OvlIsOverlayWindow;
req->wid = w;
if (_XReply (dpy, (xReply *)(&rep), 0, xTrue) == 0) {
rep.isoverlay = False;
}
UnlockDisplay(dpy);
SyncHandle();
return rep.isoverlay;
}
void
XSolarisOvlSetWindowTransparent(
Display *dpy,
Window w)
{
XExtDisplayInfo *info = find_display(dpy);
xOvlSetWindowTransparentReq *req;
OvlSimpleCheckExtension(dpy, info);
LockDisplay(dpy);
GetReq(OvlSetWindowTransparent, req);
req->reqType = info->codes->major_opcode;
req->ovlReqType = X_OvlSetWindowTransparent;
req->wid = w;
UnlockDisplay(dpy);
SyncHandle();
return;
}
Status
XSolarisOvlSetPaintType(
Display *dpy,
GC gc,
XSolarisOvlPaintType paintType
)
{
XExtDisplayInfo *info = find_display(dpy);
XOvlGCExtData *gcextdata;
xOvlSetPaintTypeReq *req;
XEDataObject obj;
OvlCheckExtension(dpy, info, 0);
LockDisplay(dpy);
obj.gc = gc;
gcextdata = (XOvlGCExtData *)
XFindOnExtensionList(XEHeadOfExtensionList(obj),
info->codes->extension);
if (!gcextdata) {
if (paintType == XSolarisOvlPaintOpaque) {
/*
* No use creating an extension structure just to hold
* the default value.
*/
UnlockDisplay(dpy);
SyncHandle();
return 1;
}
gcextdata = Xmalloc(sizeof(XOvlGCExtData));
if (!gcextdata) {
UnlockDisplay(dpy);
SyncHandle();
return 0;
}
gcextdata->extdata.number = info->codes->extension;
gcextdata->extdata.free_private = NULL;
gcextdata->extdata.private_data = NULL;
gcextdata->paintType = XSolarisOvlPaintOpaque;
XAddToExtensionList(XEHeadOfExtensionList(obj), &(gcextdata->extdata));
}
if (gcextdata->paintType != paintType) {
gcextdata->paintType = paintType;
FlushGC(dpy, gc);
GetReq(OvlSetPaintType, req);
req->reqType = info->codes->major_opcode;
req->ovlReqType = X_OvlSetPaintType;
req->gc = gc->gid;
req->paintType = paintType;
}
UnlockDisplay(dpy);
SyncHandle();
return 1;
}
XSolarisOvlPaintType
XSolarisOvlGetPaintType(
Display *dpy,
GC gc
)
{
XExtDisplayInfo *info = find_display(dpy);
XOvlGCExtData *gcextdata;
XSolarisOvlPaintType paintType;
XEDataObject obj;
OvlCheckExtension(dpy, info, XSolarisOvlPaintOpaque);
LockDisplay(dpy);
obj.gc = gc;
gcextdata = (XOvlGCExtData *)
XFindOnExtensionList(XEHeadOfExtensionList(obj),
info->codes->extension);
paintType = (gcextdata) ? gcextdata->paintType : XSolarisOvlPaintOpaque;
UnlockDisplay(dpy);
SyncHandle();
return paintType;
}
Status
XSolarisOvlCopyPaintType(
Display *dpy,
Drawable src,
Drawable dst,
GC gc,
int src_x,
int src_y,
unsigned int width,
unsigned int height,
int dest_x,
int dest_y,
unsigned long action_mask,
unsigned long planemask
)
{
XExtDisplayInfo *info = find_display(dpy);
xOvlCopyPaintTypeReq *req;
OvlCheckExtension(dpy, info, 0);
LockDisplay(dpy);
FlushGC(dpy, gc);
GetReq(OvlCopyPaintType, req);
req->reqType = info->codes->major_opcode;
req->ovlReqType = X_OvlCopyPaintType;
req->srcDrawable = src;
req->dstDrawable = dst;
req->gc = gc->gid;
req->srcX = src_x;
req->srcY = src_y;
req->destX = dest_x;
req->destY = dest_y;
req->width = width;
req->height = height;
req->action_mask = action_mask;
req->bitPlane = planemask;
UnlockDisplay(dpy);
SyncHandle();
return 1;
}
Status
XSolarisOvlCopyAreaAndPaintType(
Display *dpy,
Drawable colorSrc,
Drawable paintTypeSrc,
Drawable colorDst,
Drawable paintTypeDst,
GC colorGC,
GC paintTypeGC,
int colorSrcX,
int colorSrcY,
int paintTypeSrcX,
int paintTypeSrcY,
unsigned int width,
unsigned int height,
int colorDstX,
int colorDstY,
int paintTypeDstX,
int paintTypeDstY,
unsigned long action_mask,
unsigned long planemask)
{
XExtDisplayInfo *info = find_display(dpy);
xOvlCopyAreaAndPaintTypeReq *req;
OvlCheckExtension(dpy, info, 0);
LockDisplay(dpy);
FlushGC(dpy, colorGC);
if (paintTypeGC && (paintTypeGC != colorGC))
FlushGC(dpy, paintTypeGC);
GetReq(OvlCopyAreaAndPaintType, req);
req->reqType = info->codes->major_opcode;
req->ovlReqType = X_OvlCopyAreaAndPaintType;
req->colorSrc = colorSrc;
req->paintTypeSrc = paintTypeSrc;
req->colorDst = colorDst;
req->paintTypeDst = paintTypeDst;
req->colorGC = colorGC->gid;
req->paintTypeGC = (paintTypeGC) ? paintTypeGC->gid : None;
req->colorSrcX = colorSrcX;
req->colorSrcY = colorSrcY;
req->paintTypeSrcX = paintTypeSrcX;
req->paintTypeSrcY = paintTypeSrcY;
req->colorDstX = colorDstX;
req->colorDstY = colorDstY;
req->paintTypeDstX = paintTypeDstX;
req->paintTypeDstY = paintTypeDstY;
req->width = width;
req->height = height;
req->action_mask = action_mask;
req->bitPlane = planemask;
UnlockDisplay(dpy);
SyncHandle();
return 1;
}
XImage *
XReadScreen(
Display *dpy,
Window w,
int x,
int y,
unsigned int width,
unsigned int height,
Bool includeCursor
)
{
XExtDisplayInfo *info = find_display(dpy);
xOvlReadScreenReq *req;
xOvlReadScreenReply rep;
char *data;
long nbytes;
XImage *image;
OvlCheckExtension(dpy, info, NULL);
LockDisplay(dpy);
GetReq (OvlReadScreen, req);
req->reqType = info->codes->major_opcode;
req->ovlReqType = X_OvlReadScreen;
req->window = w;
req->x = x;
req->y = y;
req->width = width;
req->height = height;
req->includeCursor = includeCursor;
if ( (_XReply(dpy, (xReply *)(&rep), 0, xFalse) == 0)
|| (rep.length == 0))
{
UnlockDisplay(dpy);
SyncHandle();
return NULL;
}
if (rep.length < (INT_MAX >> 2)) {
nbytes = (long)rep.length << 2;
data = Xmalloc((size_t)nbytes);
} else {
data = NULL;
}
if (!data) {
_XEatDataWords(dpy, rep.length);
UnlockDisplay(dpy);
SyncHandle();
return NULL;
}
_XReadPad (dpy, data, nbytes);
image = XCreateImage(dpy, None,
24, ZPixmap, 0, data, width, height,
dpy->bitmap_pad, 0);
if (image) {
image->red_mask = READSCREEN_REDMASK;
image->green_mask = READSCREEN_GREENMASK;
image->blue_mask = READSCREEN_BLUEMASK;
} else {
Xfree(data);
}
UnlockDisplay(dpy);
SyncHandle();
return image;
}
XSolarisOvlSelectStatus
XSolarisOvlSelectPartner(
Display *dpy,
int screen,
VisualID vid,
XSolarisOvlSelectType vistype,
int numCriteria,
XSolarisOvlVisualCriteria *pCriteria,
XVisualInfo *visinfoReturn,
unsigned long *unmetCriteriaReturn
)
{
XExtDisplayInfo *info = find_display(dpy);
Screen *scr;
XOvlScrExtData *scrextdata;
XOvlVisPair *vispair;
int i,
j;
Depth *depth;
XOvlVisInfo partner;
XOvlVisualMatch curMatch,
betterMatch,
bestMatch;
XOvlVisEnumData visEnumData;
unsigned long hardpreferred,
softpreferred;
OvlCheckExtension(dpy, info, XSolarisOvlFailure);
LockDisplay(dpy);
scr = ScreenOfDisplay(dpy, screen);
scrextdata = find_screendata(dpy, screen, info);
if (!scrextdata) {
UnlockDisplay(dpy);
SyncHandle();
return XSolarisOvlFailure;
}
curMatch.screen = screen;
curMatch.partner.vid = vid;
if (!find_visual(scr, vid, &curMatch.partner.vis, &curMatch.partner.depth))
{
UnlockDisplay(dpy);
SyncHandle();
return XSolarisOvlFailure;
}
curMatch.searchtype = vistype;
SetWorstMatch(&bestMatch);
for (i = numCriteria; i > 0; --i) {
SetWorstMatch(&betterMatch);
curMatch.partnerpreferred = True;
vispair = (XOvlVisPair *)(scrextdata->extdata.private_data);
for (j = scrextdata->numVisPairs; j > 0; --j) {
if (vid ==
((vistype == XSolarisOvlSelectBestOverlay)
? (vispair->underlay.vid)
: (vispair->overlay.vid)))
{
curMatch.candidate = (vistype == XSolarisOvlSelectBestOverlay)
? vispair->overlay
: vispair->underlay;
ComputeVisualMatch(dpy, &curMatch, pCriteria, info);
if (IsPerfectMatch(&curMatch)) {
set_visinfo(visinfoReturn, &curMatch);
UnlockDisplay(dpy);
SyncHandle();
return XSolarisOvlSuccess;
}
if (IsBetterMatch(&curMatch, &betterMatch)) {
betterMatch = curMatch;
}
}
vispair++;
}
if (!scrextdata->pairsRestricted) {
curMatch.partnerpreferred = False;
vis_enum_init(scr, &visEnumData);
while (vis_enum_next(&visEnumData,
&curMatch.candidate.vis,
&curMatch.candidate.depth))
{
curMatch.candidate.vid = curMatch.candidate.vis->visualid;
ComputeVisualMatch(dpy, &curMatch, pCriteria, info);
if (IsPerfectMatch(&curMatch)) {
set_visinfo(visinfoReturn, &curMatch);
UnlockDisplay(dpy);
SyncHandle();
return XSolarisOvlSuccess;
}
if (IsBetterMatch(&curMatch, &betterMatch)) {
betterMatch = curMatch;
}
}
}
if (IsQualifiedMatch(&betterMatch)) {
set_visinfo(visinfoReturn, &betterMatch);
*unmetCriteriaReturn = betterMatch.softfailures;
UnlockDisplay(dpy);
SyncHandle();
return XSolarisOvlQualifiedSuccess;
}
if (IsBetterMatch(&betterMatch, &bestMatch)) {
bestMatch = betterMatch;
}
pCriteria++;
}
*unmetCriteriaReturn = bestMatch.hardfailures | bestMatch.softfailures;
UnlockDisplay(dpy);
SyncHandle();
return XSolarisOvlCriteriaFailure;
}
XSolarisOvlSelectStatus
XSolarisOvlSelectPair(
Display *dpy,
int screen,
int numCriteria,
XSolarisOvlPairCriteria *pCriteria,
XVisualInfo *ovVisinfoReturn,
XVisualInfo *unVisinfoReturn,
unsigned long *unmetOvCriteriaReturn,
unsigned long *unmetUnCriteriaReturn)
{
XExtDisplayInfo *info = find_display(dpy);
Screen *scr;
XOvlScrExtData *scrextdata;
XOvlVisPair *vispair;
int i,
j;
XOvlVisualMatch curOvMatch, curUnMatch,
betterOvMatch, betterUnMatch,
bestOvMatch, bestUnMatch;
XOvlVisEnumData ovVisEnumData, unVisEnumData;
OvlCheckExtension(dpy, info, XSolarisOvlFailure);
LockDisplay(dpy);
scr = ScreenOfDisplay(dpy, screen);
scrextdata = find_screendata(dpy, screen, info);
if (!scrextdata) {
UnlockDisplay(dpy);
SyncHandle();
return XSolarisOvlFailure;
}
curOvMatch.screen = curUnMatch.screen = screen;
curOvMatch.searchtype = XSolarisOvlSelectBestUnderlay;
curUnMatch.searchtype = XSolarisOvlSelectBestOverlay;
SetWorstMatch(&bestOvMatch);
SetWorstMatch(&bestUnMatch);
for (i = numCriteria; i > 0; --i) {
SetWorstMatch(&betterOvMatch);
SetWorstMatch(&betterUnMatch);
curOvMatch.partnerpreferred = curUnMatch.partnerpreferred = True;
vispair = (XOvlVisPair *)(scrextdata->extdata.private_data);
for (j = scrextdata->numVisPairs; j > 0; --j) {
curOvMatch.candidate = curUnMatch.partner = vispair->overlay;
curOvMatch.partner = curUnMatch.candidate = vispair->underlay;
ComputeVisualMatch(dpy, &curOvMatch,
&pCriteria->overlayCriteria, info);
ComputeVisualMatch(dpy, &curUnMatch,
&pCriteria->underlayCriteria, info);
if (IsPerfectPair(&curOvMatch, &curUnMatch)) {
set_visinfo(unVisinfoReturn, &curUnMatch);
set_visinfo(ovVisinfoReturn, &curOvMatch);
UnlockDisplay(dpy);
SyncHandle();
return XSolarisOvlSuccess;
}
if (IsBetterPair(&curOvMatch, &curUnMatch,
&betterOvMatch, &betterUnMatch))
{
betterOvMatch = curOvMatch;
betterUnMatch = curUnMatch;
}
vispair++;
}
if (!scrextdata->pairsRestricted) {
curOvMatch.partnerpreferred = False;
curUnMatch.partnerpreferred = False;
vis_enum_init(scr, &ovVisEnumData);
while (vis_enum_next(&ovVisEnumData,
&curOvMatch.candidate.vis,
&curOvMatch.candidate.depth))
{
curOvMatch.candidate.vid = curOvMatch.candidate.vis->visualid;
curUnMatch.partner = curOvMatch.candidate;
vis_enum_init(scr, &unVisEnumData);
while (vis_enum_next(&unVisEnumData,
&curUnMatch.candidate.vis,
&curUnMatch.candidate.depth))
{
curUnMatch.candidate.vid =
curUnMatch.candidate.vis->visualid;
curOvMatch.partner = curUnMatch.candidate;
ComputeVisualMatch(dpy, &curOvMatch,
&pCriteria->overlayCriteria, info);
ComputeVisualMatch(dpy, &curUnMatch,
&pCriteria->underlayCriteria, info);
if (IsPerfectPair(&curOvMatch, &curUnMatch)) {
set_visinfo(unVisinfoReturn, &curUnMatch);
set_visinfo(ovVisinfoReturn, &curOvMatch);
UnlockDisplay(dpy);
SyncHandle();
return XSolarisOvlSuccess;
}
if (IsBetterPair(&curOvMatch, &curUnMatch,
&betterOvMatch, &betterUnMatch))
{
betterOvMatch = curOvMatch;
betterUnMatch = curUnMatch;
}
}
}
}
if (IsQualifiedPair(&betterOvMatch, &betterUnMatch)) {
set_visinfo(ovVisinfoReturn, &betterOvMatch);
set_visinfo(unVisinfoReturn, &betterUnMatch);
*unmetOvCriteriaReturn = betterOvMatch.softfailures;
*unmetUnCriteriaReturn = betterUnMatch.softfailures;
UnlockDisplay(dpy);
SyncHandle();
return XSolarisOvlQualifiedSuccess;
}
if (IsBetterPair(&betterOvMatch, &betterUnMatch,
&bestOvMatch, &bestUnMatch))
{
bestOvMatch = betterOvMatch;
bestUnMatch = betterUnMatch;
}
pCriteria++;
}
*unmetOvCriteriaReturn = bestOvMatch.hardfailures|bestOvMatch.softfailures;
*unmetUnCriteriaReturn = bestUnMatch.hardfailures|bestUnMatch.softfailures;
UnlockDisplay(dpy);
SyncHandle();
return XSolarisOvlCriteriaFailure;
}