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xserver/hw/kdrive/ephyr/ephyrdriext.c

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/*
* Xephyr - A kdrive X server thats runs in a host X window.
* Authored by Matthew Allum <mallum@openedhand.com>
*
* Copyright © 2007 OpenedHand Ltd
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
* the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of OpenedHand Ltd not be used in
* advertising or publicity pertaining to distribution of the software without
* specific, written prior permission. OpenedHand Ltd makes no
* representations about the suitability of this software for any purpose. It
* is provided "as is" without express or implied warranty.
*
* OpenedHand Ltd DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
* EVENT SHALL OpenedHand Ltd BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
* TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*
* This file is heavily copied from hw/xfree86/dri/xf86dri.c
*
* Authors:
* Dodji Seketeli <dodji@openedhand.com>
*/
#ifdef HAVE_CONFIG_H
#include <kdrive-config.h>
#endif
#include <string.h>
#include <X11/X.h>
#include <X11/Xproto.h>
#define _XF86DRI_SERVER_
#include <X11/dri/xf86dri.h>
#include <X11/dri/xf86driproto.h>
#include <xcb/xcb.h>
#include <xcb/shape.h>
#include <xcb/xf86dri.h>
#include "misc.h"
#include "privates.h"
#include "dixstruct.h"
#include "extnsionst.h"
#include "colormapst.h"
#include "cursorstr.h"
#include "scrnintstr.h"
#include "windowstr.h"
#include "servermd.h"
#include "swaprep.h"
#include "ephyrdri.h"
#include "ephyrdriext.h"
#include "hostx.h"
#define _HAVE_XALLOC_DECLS
#include "ephyrlog.h"
#include "protocol-versions.h"
typedef struct {
int foo;
} EphyrDRIWindowPrivRec;
typedef EphyrDRIWindowPrivRec *EphyrDRIWindowPrivPtr;
typedef struct {
CreateWindowProcPtr CreateWindow;
DestroyWindowProcPtr DestroyWindow;
MoveWindowProcPtr MoveWindow;
PositionWindowProcPtr PositionWindow;
ClipNotifyProcPtr ClipNotify;
} EphyrDRIScreenPrivRec;
typedef EphyrDRIScreenPrivRec *EphyrDRIScreenPrivPtr;
static int DRIErrorBase;
static Bool ephyrDRIScreenInit(ScreenPtr a_screen);
static Bool ephyrDRICreateWindow(WindowPtr a_win);
static Bool ephyrDRIDestroyWindow(WindowPtr a_win);
static void ephyrDRIMoveWindow(WindowPtr a_win,
int a_x, int a_y,
WindowPtr a_siblings, VTKind a_kind);
static Bool ephyrDRIPositionWindow(WindowPtr a_win, int x, int y);
static void ephyrDRIClipNotify(WindowPtr a_win, int a_x, int a_y);
static Bool EphyrMirrorHostVisuals(ScreenPtr a_screen);
static Bool destroyHostPeerWindow(const WindowPtr a_win);
static Bool findWindowPairFromLocal(WindowPtr a_local,
EphyrWindowPair ** a_pair);
static unsigned char DRIReqCode = 0;
static DevPrivateKeyRec ephyrDRIWindowKeyRec;
#define ephyrDRIWindowKey (&ephyrDRIWindowKeyRec)
static DevPrivateKeyRec ephyrDRIScreenKeyRec;
#define ephyrDRIScreenKey (&ephyrDRIScreenKeyRec)
#define GET_EPHYR_DRI_WINDOW_PRIV(win) ((EphyrDRIWindowPrivPtr) \
dixLookupPrivate(&(win)->devPrivates, ephyrDRIWindowKey))
#define GET_EPHYR_DRI_SCREEN_PRIV(screen) ((EphyrDRIScreenPrivPtr) \
dixLookupPrivate(&(screen)->devPrivates, ephyrDRIScreenKey))
static Bool
ephyrDRIScreenInit(ScreenPtr a_screen)
{
Bool is_ok = FALSE;
EphyrDRIScreenPrivPtr screen_priv = NULL;
EPHYR_RETURN_VAL_IF_FAIL(a_screen, FALSE);
screen_priv = GET_EPHYR_DRI_SCREEN_PRIV(a_screen);
EPHYR_RETURN_VAL_IF_FAIL(screen_priv, FALSE);
screen_priv->CreateWindow = a_screen->CreateWindow;
screen_priv->DestroyWindow = a_screen->DestroyWindow;
screen_priv->MoveWindow = a_screen->MoveWindow;
screen_priv->PositionWindow = a_screen->PositionWindow;
screen_priv->ClipNotify = a_screen->ClipNotify;
a_screen->CreateWindow = ephyrDRICreateWindow;
a_screen->DestroyWindow = ephyrDRIDestroyWindow;
a_screen->MoveWindow = ephyrDRIMoveWindow;
a_screen->PositionWindow = ephyrDRIPositionWindow;
a_screen->ClipNotify = ephyrDRIClipNotify;
is_ok = TRUE;
return is_ok;
}
static Bool
ephyrDRICreateWindow(WindowPtr a_win)
{
Bool is_ok = FALSE;
ScreenPtr screen = NULL;
EphyrDRIScreenPrivPtr screen_priv = NULL;
EPHYR_RETURN_VAL_IF_FAIL(a_win, FALSE);
screen = a_win->drawable.pScreen;
EPHYR_RETURN_VAL_IF_FAIL(screen, FALSE);
screen_priv = GET_EPHYR_DRI_SCREEN_PRIV(screen);
EPHYR_RETURN_VAL_IF_FAIL(screen_priv && screen_priv->CreateWindow, FALSE);
EPHYR_LOG("enter. win:%p\n", a_win);
screen->CreateWindow = screen_priv->CreateWindow;
is_ok = (*screen->CreateWindow) (a_win);
screen->CreateWindow = ephyrDRICreateWindow;
if (is_ok) {
dixSetPrivate(&a_win->devPrivates, ephyrDRIWindowKey, NULL);
}
return is_ok;
}
static Bool
ephyrDRIDestroyWindow(WindowPtr a_win)
{
Bool is_ok = FALSE;
ScreenPtr screen = NULL;
EphyrDRIScreenPrivPtr screen_priv = NULL;
EPHYR_RETURN_VAL_IF_FAIL(a_win, FALSE);
screen = a_win->drawable.pScreen;
EPHYR_RETURN_VAL_IF_FAIL(screen, FALSE);
screen_priv = GET_EPHYR_DRI_SCREEN_PRIV(screen);
EPHYR_RETURN_VAL_IF_FAIL(screen_priv && screen_priv->DestroyWindow, FALSE);
screen->DestroyWindow = screen_priv->DestroyWindow;
if (screen->DestroyWindow) {
is_ok = (*screen->DestroyWindow) (a_win);
}
screen->DestroyWindow = ephyrDRIDestroyWindow;
if (is_ok) {
EphyrDRIWindowPrivPtr win_priv = GET_EPHYR_DRI_WINDOW_PRIV(a_win);
if (win_priv) {
destroyHostPeerWindow(a_win);
free(win_priv);
dixSetPrivate(&a_win->devPrivates, ephyrDRIWindowKey, NULL);
EPHYR_LOG("destroyed the remote peer window\n");
}
}
return is_ok;
}
static void
ephyrDRIMoveWindow(WindowPtr a_win,
int a_x, int a_y, WindowPtr a_siblings, VTKind a_kind)
{
ScreenPtr screen = NULL;
EphyrDRIScreenPrivPtr screen_priv = NULL;
EphyrDRIWindowPrivPtr win_priv = NULL;
EphyrWindowPair *pair = NULL;
EphyrBox geo;
int x = 0, y = 0; /*coords relative to parent window */
EPHYR_RETURN_IF_FAIL(a_win);
EPHYR_LOG("enter\n");
screen = a_win->drawable.pScreen;
EPHYR_RETURN_IF_FAIL(screen);
screen_priv = GET_EPHYR_DRI_SCREEN_PRIV(screen);
EPHYR_RETURN_IF_FAIL(screen_priv && screen_priv->MoveWindow);
screen->MoveWindow = screen_priv->MoveWindow;
if (screen->MoveWindow) {
(*screen->MoveWindow) (a_win, a_x, a_y, a_siblings, a_kind);
}
screen->MoveWindow = ephyrDRIMoveWindow;
EPHYR_LOG("window: %p\n", a_win);
if (!a_win->parent) {
EPHYR_LOG("cannot move root window\n");
return;
}
win_priv = GET_EPHYR_DRI_WINDOW_PRIV(a_win);
if (!win_priv) {
EPHYR_LOG("not a DRI peered window\n");
return;
}
if (!findWindowPairFromLocal(a_win, &pair) || !pair) {
EPHYR_LOG_ERROR("failed to get window pair\n");
return;
}
/*compute position relative to parent window */
x = a_win->drawable.x - a_win->parent->drawable.x;
y = a_win->drawable.y - a_win->parent->drawable.y;
/*set the geometry to pass to hostx_set_window_geometry */
memset(&geo, 0, sizeof(geo));
geo.x = x;
geo.y = y;
geo.width = a_win->drawable.width;
geo.height = a_win->drawable.height;
hostx_set_window_geometry(pair->remote, &geo);
}
static Bool
ephyrDRIPositionWindow(WindowPtr a_win, int a_x, int a_y)
{
Bool is_ok = FALSE;
ScreenPtr screen = NULL;
EphyrDRIScreenPrivPtr screen_priv = NULL;
EphyrDRIWindowPrivPtr win_priv = NULL;
EphyrWindowPair *pair = NULL;
EphyrBox geo;
EPHYR_RETURN_VAL_IF_FAIL(a_win, FALSE);
EPHYR_LOG("enter\n");
screen = a_win->drawable.pScreen;
EPHYR_RETURN_VAL_IF_FAIL(screen, FALSE);
screen_priv = GET_EPHYR_DRI_SCREEN_PRIV(screen);
EPHYR_RETURN_VAL_IF_FAIL(screen_priv && screen_priv->PositionWindow, FALSE);
screen->PositionWindow = screen_priv->PositionWindow;
if (screen->PositionWindow) {
(*screen->PositionWindow) (a_win, a_x, a_y);
}
screen->PositionWindow = ephyrDRIPositionWindow;
EPHYR_LOG("window: %p\n", a_win);
win_priv = GET_EPHYR_DRI_WINDOW_PRIV(a_win);
if (!win_priv) {
EPHYR_LOG("not a DRI peered window\n");
is_ok = TRUE;
goto out;
}
if (!findWindowPairFromLocal(a_win, &pair) || !pair) {
EPHYR_LOG_ERROR("failed to get window pair\n");
goto out;
}
/*set the geometry to pass to hostx_set_window_geometry */
memset(&geo, 0, sizeof(geo));
geo.x = a_x;
geo.y = a_y;
geo.width = a_win->drawable.width;
geo.height = a_win->drawable.height;
hostx_set_window_geometry(pair->remote, &geo);
is_ok = TRUE;
out:
EPHYR_LOG("leave. is_ok:%d\n", is_ok);
/*do cleanup here */
return is_ok;
}
static void
ephyrDRIClipNotify(WindowPtr a_win, int a_x, int a_y)
{
ScreenPtr screen = NULL;
EphyrDRIScreenPrivPtr screen_priv = NULL;
EphyrDRIWindowPrivPtr win_priv = NULL;
EphyrWindowPair *pair = NULL;
EphyrRect *rects = NULL;
int i = 0;
EPHYR_RETURN_IF_FAIL(a_win);
EPHYR_LOG("enter\n");
screen = a_win->drawable.pScreen;
EPHYR_RETURN_IF_FAIL(screen);
screen_priv = GET_EPHYR_DRI_SCREEN_PRIV(screen);
EPHYR_RETURN_IF_FAIL(screen_priv && screen_priv->ClipNotify);
screen->ClipNotify = screen_priv->ClipNotify;
if (screen->ClipNotify) {
(*screen->ClipNotify) (a_win, a_x, a_y);
}
screen->ClipNotify = ephyrDRIClipNotify;
EPHYR_LOG("window: %p\n", a_win);
win_priv = GET_EPHYR_DRI_WINDOW_PRIV(a_win);
if (!win_priv) {
EPHYR_LOG("not a DRI peered window\n");
goto out;
}
if (!findWindowPairFromLocal(a_win, &pair) || !pair) {
EPHYR_LOG_ERROR("failed to get window pair\n");
goto out;
}
rects = calloc(RegionNumRects(&a_win->clipList), sizeof(EphyrRect));
for (i = 0; i < RegionNumRects(&a_win->clipList); i++) {
memmove(&rects[i],
&RegionRects(&a_win->clipList)[i], sizeof(EphyrRect));
rects[i].x1 -= a_win->drawable.x;
rects[i].x2 -= a_win->drawable.x;
rects[i].y1 -= a_win->drawable.y;
rects[i].y2 -= a_win->drawable.y;
}
/*
* push the clipping region of this window
* to the peer window in the host
*/
hostx_set_window_bounding_rectangles
(pair->remote, rects, RegionNumRects(&a_win->clipList));
out:
free(rects);
rects = NULL;
EPHYR_LOG("leave.\n");
/*do cleanup here */
}
/**
* Duplicates a visual of a_screen
* In screen a_screen, for depth a_depth, find a visual which
* bitsPerRGBValue and colormap size equal
* a_bits_per_rgb_values and a_colormap_entries.
* The ID of that duplicated visual is set to a_new_id.
* That duplicated visual is then added to the list of visuals
* of the screen.
*/
static Bool
EphyrDuplicateVisual(unsigned int a_screen,
short a_depth,
short a_class,
short a_bits_per_rgb_values,
short a_colormap_entries,
unsigned int a_red_mask,
unsigned int a_green_mask,
unsigned int a_blue_mask, unsigned int a_new_id)
{
Bool is_ok = FALSE, found_visual = FALSE, found_depth = FALSE;
ScreenPtr screen = NULL;
VisualRec new_visual, *new_visuals = NULL;
int i = 0;
EPHYR_LOG("enter\n");
if (a_screen >= screenInfo.numScreens) {
EPHYR_LOG_ERROR("bad screen number\n");
goto out;
}
memset(&new_visual, 0, sizeof(VisualRec));
/*get the screen pointed to by a_screen */
screen = screenInfo.screens[a_screen];
EPHYR_RETURN_VAL_IF_FAIL(screen, FALSE);
/*
* In that screen, first look for an existing visual that has the
* same characteristics as those passed in parameter
* to this function and copy it.
*/
for (i = 0; i < screen->numVisuals; i++) {
if (screen->visuals[i].bitsPerRGBValue == a_bits_per_rgb_values &&
screen->visuals[i].ColormapEntries == a_colormap_entries) {
/*copy the visual found */
memcpy(&new_visual, &screen->visuals[i], sizeof(new_visual));
new_visual.vid = a_new_id;
new_visual.class = a_class;
new_visual.redMask = a_red_mask;
new_visual.greenMask = a_green_mask;
new_visual.blueMask = a_blue_mask;
found_visual = TRUE;
EPHYR_LOG("found a visual that matches visual id: %d\n", a_new_id);
break;
}
}
if (!found_visual) {
EPHYR_LOG("did not find any visual matching %d\n", a_new_id);
goto out;
}
/*
* be prepare to extend screen->visuals to add new_visual to it
*/
new_visuals = calloc(screen->numVisuals + 1, sizeof(VisualRec));
memmove(new_visuals,
screen->visuals, screen->numVisuals * sizeof(VisualRec));
memmove(&new_visuals[screen->numVisuals], &new_visual, sizeof(VisualRec));
/*
* Now, in that same screen, update the screen->allowedDepths member.
* In that array, each element represents the visuals applicable to
* a given depth. So we need to add an entry matching the new visual
* that we are going to add to screen->visuals
*/
for (i = 0; i < screen->numDepths; i++) {
VisualID *vids = NULL;
DepthPtr cur_depth = NULL;
/*find the entry matching a_depth */
if (screen->allowedDepths[i].depth != a_depth)
continue;
cur_depth = &screen->allowedDepths[i];
/*
* extend the list of visual IDs in that entry,
* so to add a_new_id in there.
*/
vids = realloc(cur_depth->vids,
(cur_depth->numVids + 1) * sizeof(VisualID));
if (!vids) {
EPHYR_LOG_ERROR("failed to realloc numids\n");
goto out;
}
vids[cur_depth->numVids] = a_new_id;
/*
* Okay now commit our change.
* Do really update screen->allowedDepths[i]
*/
cur_depth->numVids++;
cur_depth->vids = vids;
found_depth = TRUE;
}
if (!found_depth) {
EPHYR_LOG_ERROR("failed to update screen[%d]->allowedDepth\n",
a_screen);
goto out;
}
/*
* Commit our change to screen->visuals
*/
free(screen->visuals);
screen->visuals = new_visuals;
screen->numVisuals++;
new_visuals = NULL;
is_ok = TRUE;
out:
free(new_visuals);
new_visuals = NULL;
EPHYR_LOG("leave\n");
return is_ok;
}
/**
* Duplicates the visuals of the host X server.
* This is necessary to have visuals that have the same
* ID as those of the host X. It is important to have that for
* GLX.
*/
static Bool
EphyrMirrorHostVisuals(ScreenPtr a_screen)
{
Bool is_ok = FALSE;
EphyrHostVisualInfo *visuals = NULL;
int nb_visuals = 0, i = 0;
EPHYR_LOG("enter\n");
if (!hostx_get_visuals_info(&visuals, &nb_visuals)) {
EPHYR_LOG_ERROR("failed to get host visuals\n");
goto out;
}
for (i = 0; i < nb_visuals; i++) {
if (!EphyrDuplicateVisual(a_screen->myNum,
visuals[i].depth,
visuals[i].class,
visuals[i].bits_per_rgb,
visuals[i].colormap_size,
visuals[i].red_mask,
visuals[i].green_mask,
visuals[i].blue_mask, visuals[i].visualid)) {
EPHYR_LOG_ERROR("failed to duplicate host visual %d\n",
(int) visuals[i].visualid);
}
}
is_ok = TRUE;
out:
EPHYR_LOG("leave\n");
return is_ok;
}
static int
ProcXF86DRIQueryVersion(register ClientPtr client)
{
xXF86DRIQueryVersionReply rep = {
.type = X_Reply,
.sequenceNumber = client->sequence,
.length = 0,
.majorVersion = SERVER_XF86DRI_MAJOR_VERSION,
.minorVersion = SERVER_XF86DRI_MINOR_VERSION,
.patchVersion = SERVER_XF86DRI_PATCH_VERSION
};
REQUEST_SIZE_MATCH(xXF86DRIQueryVersionReq);
EPHYR_LOG("enter\n");
if (client->swapped) {
swaps(&rep.sequenceNumber);
swapl(&rep.length);
swaps(&rep.majorVersion);
swaps(&rep.minorVersion);
swapl(&rep.patchVersion);
}
WriteToClient(client, sizeof(xXF86DRIQueryVersionReply), &rep);
EPHYR_LOG("leave\n");
return Success;
}
static int
ProcXF86DRIQueryDirectRenderingCapable(register ClientPtr client)
{
xXF86DRIQueryDirectRenderingCapableReply rep;
Bool isCapable;
REQUEST(xXF86DRIQueryDirectRenderingCapableReq);
REQUEST_SIZE_MATCH(xXF86DRIQueryDirectRenderingCapableReq);
EPHYR_LOG("enter\n");
if (stuff->screen >= screenInfo.numScreens) {
client->errorValue = stuff->screen;
return BadValue;
}
if (!ephyrDRIQueryDirectRenderingCapable(stuff->screen, &isCapable)) {
return BadValue;
}
if (!client->local || client->swapped)
isCapable = 0;
rep = (xXF86DRIQueryDirectRenderingCapableReply) {
.type = X_Reply,
.sequenceNumber = client->sequence,
.length = 0,
.isCapable = isCapable
};
if (client->swapped) {
swaps(&rep.sequenceNumber);
swapl(&rep.length);
}
WriteToClient(client, sizeof(xXF86DRIQueryDirectRenderingCapableReply),
&rep);
EPHYR_LOG("leave\n");
return Success;
}
static int
ProcXF86DRIOpenConnection(register ClientPtr client)
{
xXF86DRIOpenConnectionReply rep;
drm_handle_t hSAREA;
char *busIdString = NULL;
CARD32 busIdStringLength = 0;
REQUEST(xXF86DRIOpenConnectionReq);
REQUEST_SIZE_MATCH(xXF86DRIOpenConnectionReq);
EPHYR_LOG("enter\n");
if (stuff->screen >= screenInfo.numScreens) {
client->errorValue = stuff->screen;
return BadValue;
}
if (!ephyrDRIOpenConnection(stuff->screen, &hSAREA, &busIdString)) {
return BadValue;
}
if (busIdString)
busIdStringLength = strlen(busIdString);
rep = (xXF86DRIOpenConnectionReply) {
.type = X_Reply,
.sequenceNumber = client->sequence,
.length = bytes_to_int32(SIZEOF(xXF86DRIOpenConnectionReply) -
SIZEOF(xGenericReply) +
pad_to_int32(busIdStringLength)),
.hSAREALow = (CARD32) (hSAREA & 0xffffffff),
#if defined(LONG64) && !defined(__linux__)
.hSAREAHigh = (CARD32) (hSAREA >> 32),
#else
.hSAREAHigh = 0,
#endif
.busIdStringLength = busIdStringLength
};
WriteToClient(client, sizeof(xXF86DRIOpenConnectionReply), &rep);
if (busIdStringLength)
WriteToClient(client, busIdStringLength, busIdString);
free(busIdString);
EPHYR_LOG("leave\n");
return Success;
}
static int
ProcXF86DRIAuthConnection(register ClientPtr client)
{
xXF86DRIAuthConnectionReply rep;
REQUEST(xXF86DRIAuthConnectionReq);
REQUEST_SIZE_MATCH(xXF86DRIAuthConnectionReq);
EPHYR_LOG("enter\n");
if (stuff->screen >= screenInfo.numScreens) {
client->errorValue = stuff->screen;
return BadValue;
}
rep = (xXF86DRIAuthConnectionReply) {
.type = X_Reply,
.sequenceNumber = client->sequence,
.length = 0,
.authenticated = 1
};
if (!ephyrDRIAuthConnection(stuff->screen, stuff->magic)) {
ErrorF("Failed to authenticate %lu\n", (unsigned long) stuff->magic);
rep.authenticated = 0;
}
WriteToClient(client, sizeof(xXF86DRIAuthConnectionReply), &rep);
EPHYR_LOG("leave\n");
return Success;
}
static int
ProcXF86DRICloseConnection(register ClientPtr client)
{
REQUEST(xXF86DRICloseConnectionReq);
REQUEST_SIZE_MATCH(xXF86DRICloseConnectionReq);
EPHYR_LOG("enter\n");
if (stuff->screen >= screenInfo.numScreens) {
client->errorValue = stuff->screen;
return BadValue;
}
/*
DRICloseConnection( screenInfo.screens[stuff->screen]);
*/
EPHYR_LOG("leave\n");
return Success;
}
static int
ProcXF86DRIGetClientDriverName(register ClientPtr client)
{
xXF86DRIGetClientDriverNameReply rep = {
.type = X_Reply,
.sequenceNumber = client->sequence,
.clientDriverNameLength = 0
};
char *clientDriverName;
REQUEST(xXF86DRIGetClientDriverNameReq);
REQUEST_SIZE_MATCH(xXF86DRIGetClientDriverNameReq);
EPHYR_LOG("enter\n");
if (stuff->screen >= screenInfo.numScreens) {
client->errorValue = stuff->screen;
return BadValue;
}
ephyrDRIGetClientDriverName(stuff->screen,
(int *) &rep.ddxDriverMajorVersion,
(int *) &rep.ddxDriverMinorVersion,
(int *) &rep.ddxDriverPatchVersion,
&clientDriverName);
if (clientDriverName)
rep.clientDriverNameLength = strlen(clientDriverName);
rep.length = bytes_to_int32(SIZEOF(xXF86DRIGetClientDriverNameReply) -
SIZEOF(xGenericReply) +
pad_to_int32(rep.clientDriverNameLength));
WriteToClient(client, sizeof(xXF86DRIGetClientDriverNameReply), &rep);
if (rep.clientDriverNameLength)
WriteToClient(client, rep.clientDriverNameLength, clientDriverName);
EPHYR_LOG("leave\n");
return Success;
}
static int
ProcXF86DRICreateContext(register ClientPtr client)
{
xXF86DRICreateContextReply rep = {
.type = X_Reply,
.sequenceNumber = client->sequence,
.length = 0
};
ScreenPtr pScreen;
VisualPtr visual;
int i = 0;
REQUEST(xXF86DRICreateContextReq);
REQUEST_SIZE_MATCH(xXF86DRICreateContextReq);
EPHYR_LOG("enter\n");
if (stuff->screen >= screenInfo.numScreens) {
client->errorValue = stuff->screen;
return BadValue;
}
pScreen = screenInfo.screens[stuff->screen];
visual = pScreen->visuals;
/* Find the requested X visual */
for (i = 0; i < pScreen->numVisuals; i++, visual++)
if (visual->vid == stuff->visual)
break;
if (i == pScreen->numVisuals) {
/* No visual found */
return BadValue;
}
if (!ephyrDRICreateContext(stuff->screen,
stuff->visual,
stuff->context,
(drm_context_t *) &rep.hHWContext)) {
return BadValue;
}
WriteToClient(client, sizeof(xXF86DRICreateContextReply), &rep);
EPHYR_LOG("leave\n");
return Success;
}
static int
ProcXF86DRIDestroyContext(register ClientPtr client)
{
REQUEST(xXF86DRIDestroyContextReq);
REQUEST_SIZE_MATCH(xXF86DRIDestroyContextReq);
EPHYR_LOG("enter\n");
if (stuff->screen >= screenInfo.numScreens) {
client->errorValue = stuff->screen;
return BadValue;
}
if (!ephyrDRIDestroyContext(stuff->screen, stuff->context)) {
return BadValue;
}
EPHYR_LOG("leave\n");
return Success;
}
static Bool
getWindowVisual(const WindowPtr a_win, VisualPtr * a_visual)
{
int i = 0, visual_id = 0;
EPHYR_RETURN_VAL_IF_FAIL(a_win
&& a_win->drawable.pScreen
&& a_win->drawable.pScreen->visuals, FALSE);
visual_id = wVisual(a_win);
for (i = 0; i < a_win->drawable.pScreen->numVisuals; i++) {
if (a_win->drawable.pScreen->visuals[i].vid == visual_id) {
*a_visual = &a_win->drawable.pScreen->visuals[i];
return TRUE;
}
}
return FALSE;
}
#define NUM_WINDOW_PAIRS 256
static EphyrWindowPair window_pairs[NUM_WINDOW_PAIRS];
static Bool
appendWindowPairToList(WindowPtr a_local, int a_remote)
{
int i = 0;
EPHYR_RETURN_VAL_IF_FAIL(a_local, FALSE);
EPHYR_LOG("(local,remote):(%p, %d)\n", a_local, a_remote);
for (i = 0; i < NUM_WINDOW_PAIRS; i++) {
if (window_pairs[i].local == NULL) {
window_pairs[i].local = a_local;
window_pairs[i].remote = a_remote;
return TRUE;
}
}
return FALSE;
}
static Bool
findWindowPairFromLocal(WindowPtr a_local, EphyrWindowPair ** a_pair)
{
int i = 0;
EPHYR_RETURN_VAL_IF_FAIL(a_pair && a_local, FALSE);
for (i = 0; i < NUM_WINDOW_PAIRS; i++) {
if (window_pairs[i].local == a_local) {
*a_pair = &window_pairs[i];
EPHYR_LOG("found (%p, %d)\n", (*a_pair)->local, (*a_pair)->remote);
return TRUE;
}
}
return FALSE;
}
Bool
findWindowPairFromRemote(int a_remote, EphyrWindowPair ** a_pair)
{
int i = 0;
EPHYR_RETURN_VAL_IF_FAIL(a_pair, FALSE);
for (i = 0; i < NUM_WINDOW_PAIRS; i++) {
if (window_pairs[i].remote == a_remote) {
*a_pair = &window_pairs[i];
EPHYR_LOG("found (%p, %d)\n", (*a_pair)->local, (*a_pair)->remote);
return TRUE;
}
}
return FALSE;
}
static Bool
createHostPeerWindow(const WindowPtr a_win, int *a_peer_win)
{
Bool is_ok = FALSE;
VisualPtr visual = NULL;
EphyrBox geo;
EPHYR_RETURN_VAL_IF_FAIL(a_win && a_peer_win, FALSE);
EPHYR_RETURN_VAL_IF_FAIL(a_win->drawable.pScreen, FALSE);
EPHYR_LOG("enter. a_win '%p'\n", a_win);
if (!getWindowVisual(a_win, &visual)) {
EPHYR_LOG_ERROR("failed to get window visual\n");
goto out;
}
if (!visual) {
EPHYR_LOG_ERROR("failed to create visual\n");
goto out;
}
memset(&geo, 0, sizeof(geo));
geo.x = a_win->drawable.x;
geo.y = a_win->drawable.y;
geo.width = a_win->drawable.width;
geo.height = a_win->drawable.height;
if (!hostx_create_window(a_win->drawable.pScreen->myNum,
&geo, visual->vid, a_peer_win)) {
EPHYR_LOG_ERROR("failed to create host peer window\n");
goto out;
}
if (!appendWindowPairToList(a_win, *a_peer_win)) {
EPHYR_LOG_ERROR("failed to append window to pair list\n");
goto out;
}
is_ok = TRUE;
out:
EPHYR_LOG("leave:remote win%d\n", *a_peer_win);
return is_ok;
}
static Bool
destroyHostPeerWindow(const WindowPtr a_win)
{
Bool is_ok = FALSE;
EphyrWindowPair *pair = NULL;
EPHYR_RETURN_VAL_IF_FAIL(a_win, FALSE);
EPHYR_LOG("enter\n");
if (!findWindowPairFromLocal(a_win, &pair) || !pair) {
EPHYR_LOG_ERROR("failed to find peer to local window\n");
goto out;
}
hostx_destroy_window(pair->remote);
is_ok = TRUE;
out:
EPHYR_LOG("leave\n");
return is_ok;
}
static int
ProcXF86DRICreateDrawable(ClientPtr client)
{
xXF86DRICreateDrawableReply rep = {
.type = X_Reply,
.sequenceNumber = client->sequence,
.length = 0
};
DrawablePtr drawable = NULL;
WindowPtr window = NULL;
EphyrWindowPair *pair = NULL;
EphyrDRIWindowPrivPtr win_priv = NULL;
int rc = 0, remote_win = 0;
REQUEST(xXF86DRICreateDrawableReq);
REQUEST_SIZE_MATCH(xXF86DRICreateDrawableReq);
EPHYR_LOG("enter\n");
if (stuff->screen >= screenInfo.numScreens) {
client->errorValue = stuff->screen;
return BadValue;
}
rc = dixLookupDrawable(&drawable, stuff->drawable, client, 0,
DixReadAccess);
if (rc != Success)
return rc;
if (drawable->type != DRAWABLE_WINDOW) {
EPHYR_LOG_ERROR("non drawable windows are not yet supported\n");
return BadImplementation;
}
EPHYR_LOG("lookedup drawable %p\n", drawable);
window = (WindowPtr) drawable;
if (findWindowPairFromLocal(window, &pair) && pair) {
remote_win = pair->remote;
EPHYR_LOG("found window '%p' paire with remote '%d'\n",
window, remote_win);
}
else if (!createHostPeerWindow(window, &remote_win)) {
EPHYR_LOG_ERROR("failed to create host peer window\n");
return BadAlloc;
}
if (!ephyrDRICreateDrawable(stuff->screen,
remote_win,
(drm_drawable_t *) &rep.hHWDrawable)) {
EPHYR_LOG_ERROR("failed to create dri drawable\n");
return BadValue;
}
win_priv = GET_EPHYR_DRI_WINDOW_PRIV(window);
if (!win_priv) {
win_priv = calloc(1, sizeof(EphyrDRIWindowPrivRec));
if (!win_priv) {
EPHYR_LOG_ERROR("failed to allocate window private\n");
return BadAlloc;
}
dixSetPrivate(&window->devPrivates, ephyrDRIWindowKey, win_priv);
EPHYR_LOG("paired window '%p' with remote '%d'\n", window, remote_win);
}
WriteToClient(client, sizeof(xXF86DRICreateDrawableReply), &rep);
EPHYR_LOG("leave\n");
return Success;
}
static int
ProcXF86DRIDestroyDrawable(register ClientPtr client)
{
DrawablePtr drawable = NULL;
WindowPtr window = NULL;
EphyrWindowPair *pair = NULL;
int rc = 0;
REQUEST(xXF86DRIDestroyDrawableReq);
REQUEST_SIZE_MATCH(xXF86DRIDestroyDrawableReq);
EPHYR_LOG("enter\n");
if (stuff->screen >= screenInfo.numScreens) {
client->errorValue = stuff->screen;
return BadValue;
}
rc = dixLookupDrawable(&drawable,
stuff->drawable, client, 0, DixReadAccess);
if (rc != Success)
return rc;
if (drawable->type != DRAWABLE_WINDOW) {
EPHYR_LOG_ERROR("non drawable windows are not yet supported\n");
return BadImplementation;
}
window = (WindowPtr) drawable;
if (!findWindowPairFromLocal(window, &pair) && pair) {
EPHYR_LOG_ERROR("failed to find pair window\n");
return BadImplementation;
}
if (!ephyrDRIDestroyDrawable(stuff->screen,
pair->remote /*drawable in host x */ )) {
EPHYR_LOG_ERROR("failed to destroy dri drawable\n");
return BadImplementation;
}
pair->local = NULL;
pair->remote = 0;
EPHYR_LOG("leave\n");
return Success;
}
static int
ProcXF86DRIGetDrawableInfo(register ClientPtr client)
{
xXF86DRIGetDrawableInfoReply rep = {
.type = X_Reply,
.sequenceNumber = client->sequence,
.length = 0
};
DrawablePtr drawable;
WindowPtr window = NULL;
EphyrWindowPair *pair = NULL;
int X = 0, Y = 0, W = 0, H = 0, backX = 0, backY = 0, rc = 0, i = 0;
drm_clip_rect_t *clipRects = NULL;
drm_clip_rect_t *backClipRects = NULL;
REQUEST(xXF86DRIGetDrawableInfoReq);
REQUEST_SIZE_MATCH(xXF86DRIGetDrawableInfoReq);
EPHYR_LOG("enter\n");
if (stuff->screen >= screenInfo.numScreens) {
client->errorValue = stuff->screen;
return BadValue;
}
rc = dixLookupDrawable(&drawable, stuff->drawable, client, 0,
DixReadAccess);
if (rc != Success || !drawable) {
EPHYR_LOG_ERROR("could not get drawable\n");
return rc;
}
if (drawable->type != DRAWABLE_WINDOW) {
EPHYR_LOG_ERROR("non windows type drawables are not yes supported\n");
return BadImplementation;
}
window = (WindowPtr) drawable;
memset(&pair, 0, sizeof(pair));
if (!findWindowPairFromLocal(window, &pair) || !pair) {
EPHYR_LOG_ERROR("failed to find remote peer drawable\n");
return BadMatch;
}
EPHYR_LOG("clip list of xephyr gl drawable:\n");
for (i = 0; i < RegionNumRects(&window->clipList); i++) {
EPHYR_LOG("x1:%d, y1:%d, x2:%d, y2:%d\n",
RegionRects(&window->clipList)[i].x1,
RegionRects(&window->clipList)[i].y1,
RegionRects(&window->clipList)[i].x2,
RegionRects(&window->clipList)[i].y2);
}
if (!ephyrDRIGetDrawableInfo(stuff->screen,
pair->remote /*the drawable in hostx */ ,
(unsigned int *) &rep.drawableTableIndex,
(unsigned int *) &rep.drawableTableStamp,
(int *) &X,
(int *) &Y,
(int *) &W,
(int *) &H,
(int *) &rep.numClipRects,
&clipRects,
&backX,
&backY,
(int *) &rep.numBackClipRects,
&backClipRects)) {
return BadValue;
}
EPHYR_LOG("num clip rects:%d, num back clip rects:%d\n",
(int) rep.numClipRects, (int) rep.numBackClipRects);
rep.drawableX = X;
rep.drawableY = Y;
rep.drawableWidth = W;
rep.drawableHeight = H;
rep.length = (SIZEOF(xXF86DRIGetDrawableInfoReply) - SIZEOF(xGenericReply));
rep.backX = backX;
rep.backY = backY;
if (rep.numClipRects) {
if (clipRects) {
ScreenPtr pScreen = screenInfo.screens[stuff->screen];
int i = 0;
EPHYR_LOG("clip list of host gl drawable:\n");
for (i = 0; i < rep.numClipRects; i++) {
clipRects[i].x1 = max(clipRects[i].x1, 0);
clipRects[i].y1 = max(clipRects[i].y1, 0);
clipRects[i].x2 = min(clipRects[i].x2,
pScreen->width + clipRects[i].x1);
clipRects[i].y2 = min(clipRects[i].y2,
pScreen->width + clipRects[i].y1);
EPHYR_LOG("x1:%d, y1:%d, x2:%d, y2:%d\n",
clipRects[i].x1, clipRects[i].y1,
clipRects[i].x2, clipRects[i].y2);
}
}
else {
rep.numClipRects = 0;
}
}
else {
EPHYR_LOG("got zero host gl drawable clipping rects\n");
}
rep.length += sizeof(drm_clip_rect_t) * rep.numClipRects;
backClipRects = clipRects;
rep.numBackClipRects = rep.numClipRects;
if (rep.numBackClipRects)
rep.length += sizeof(drm_clip_rect_t) * rep.numBackClipRects;
EPHYR_LOG("num host clip rects:%d\n", (int) rep.numClipRects);
EPHYR_LOG("num host back clip rects:%d\n", (int) rep.numBackClipRects);
rep.length = bytes_to_int32(rep.length);
WriteToClient(client, sizeof(xXF86DRIGetDrawableInfoReply), &rep);
if (rep.numClipRects) {
WriteToClient(client,
sizeof(drm_clip_rect_t) * rep.numClipRects,
clipRects);
}
if (rep.numBackClipRects) {
WriteToClient(client,
sizeof(drm_clip_rect_t) * rep.numBackClipRects,
backClipRects);
}
free(clipRects);
clipRects = NULL;
EPHYR_LOG("leave\n");
return Success;
}
static int
ProcXF86DRIGetDeviceInfo(register ClientPtr client)
{
xXF86DRIGetDeviceInfoReply rep = {
.type = X_Reply,
.sequenceNumber = client->sequence,
.length = 0
};
drm_handle_t hFrameBuffer;
void *pDevPrivate;
REQUEST(xXF86DRIGetDeviceInfoReq);
REQUEST_SIZE_MATCH(xXF86DRIGetDeviceInfoReq);
EPHYR_LOG("enter\n");
if (stuff->screen >= screenInfo.numScreens) {
client->errorValue = stuff->screen;
return BadValue;
}
if (!ephyrDRIGetDeviceInfo(stuff->screen,
&hFrameBuffer,
(int *) &rep.framebufferOrigin,
(int *) &rep.framebufferSize,
(int *) &rep.framebufferStride,
(int *) &rep.devPrivateSize, &pDevPrivate)) {
return BadValue;
}
rep.hFrameBufferLow = (CARD32) (hFrameBuffer & 0xffffffff);
#if defined(LONG64) && !defined(__linux__)
rep.hFrameBufferHigh = (CARD32) (hFrameBuffer >> 32);
#else
rep.hFrameBufferHigh = 0;
#endif
if (rep.devPrivateSize) {
rep.length = bytes_to_int32(SIZEOF(xXF86DRIGetDeviceInfoReply) -
SIZEOF(xGenericReply) +
pad_to_int32(rep.devPrivateSize));
}
WriteToClient(client, sizeof(xXF86DRIGetDeviceInfoReply), &rep);
if (rep.length) {
WriteToClient(client, rep.devPrivateSize, pDevPrivate);
}
EPHYR_LOG("leave\n");
return Success;
}
static int
ProcXF86DRIDispatch(register ClientPtr client)
{
REQUEST(xReq);
EPHYR_LOG("enter\n");
switch (stuff->data) {
case X_XF86DRIQueryVersion:{
EPHYR_LOG("leave\n");
return ProcXF86DRIQueryVersion(client);
}
case X_XF86DRIQueryDirectRenderingCapable:{
EPHYR_LOG("leave\n");
return ProcXF86DRIQueryDirectRenderingCapable(client);
}
}
if (!client->local)
return DRIErrorBase + XF86DRIClientNotLocal;
switch (stuff->data) {
case X_XF86DRIOpenConnection:{
EPHYR_LOG("leave\n");
return ProcXF86DRIOpenConnection(client);
}
case X_XF86DRICloseConnection:{
EPHYR_LOG("leave\n");
return ProcXF86DRICloseConnection(client);
}
case X_XF86DRIGetClientDriverName:{
EPHYR_LOG("leave\n");
return ProcXF86DRIGetClientDriverName(client);
}
case X_XF86DRICreateContext:{
EPHYR_LOG("leave\n");
return ProcXF86DRICreateContext(client);
}
case X_XF86DRIDestroyContext:{
EPHYR_LOG("leave\n");
return ProcXF86DRIDestroyContext(client);
}
case X_XF86DRICreateDrawable:{
EPHYR_LOG("leave\n");
return ProcXF86DRICreateDrawable(client);
}
case X_XF86DRIDestroyDrawable:{
EPHYR_LOG("leave\n");
return ProcXF86DRIDestroyDrawable(client);
}
case X_XF86DRIGetDrawableInfo:{
EPHYR_LOG("leave\n");
return ProcXF86DRIGetDrawableInfo(client);
}
case X_XF86DRIGetDeviceInfo:{
EPHYR_LOG("leave\n");
return ProcXF86DRIGetDeviceInfo(client);
}
case X_XF86DRIAuthConnection:{
EPHYR_LOG("leave\n");
return ProcXF86DRIAuthConnection(client);
}
/* {Open,Close}FullScreen are deprecated now */
default:{
EPHYR_LOG("leave\n");
return BadRequest;
}
}
}
static int
SProcXF86DRIQueryVersion(register ClientPtr client)
{
REQUEST(xXF86DRIQueryVersionReq);
swaps(&stuff->length);
return ProcXF86DRIQueryVersion(client);
}
static int
SProcXF86DRIQueryDirectRenderingCapable(register ClientPtr client)
{
REQUEST(xXF86DRIQueryDirectRenderingCapableReq);
swaps(&stuff->length);
swapl(&stuff->screen);
return ProcXF86DRIQueryDirectRenderingCapable(client);
}
static int
SProcXF86DRIDispatch(register ClientPtr client)
{
REQUEST(xReq);
EPHYR_LOG("enter\n");
/*
* Only local clients are allowed DRI access, but remote clients still need
* these requests to find out cleanly.
*/
switch (stuff->data) {
case X_XF86DRIQueryVersion:{
EPHYR_LOG("leave\n");
return SProcXF86DRIQueryVersion(client);
}
case X_XF86DRIQueryDirectRenderingCapable:{
EPHYR_LOG("leave\n");
return SProcXF86DRIQueryDirectRenderingCapable(client);
}
default:{
EPHYR_LOG("leave\n");
return DRIErrorBase + XF86DRIClientNotLocal;
}
}
}
Bool
ephyrDRIExtensionInit(ScreenPtr a_screen)
{
Bool is_ok = FALSE;
ExtensionEntry *extEntry = NULL;
EphyrDRIScreenPrivPtr screen_priv = NULL;
EPHYR_LOG("enter\n");
if (!host_has_extension(&xcb_xf86dri_id)) {
EPHYR_LOG("host does not have DRI extension\n");
goto out;
}
EPHYR_LOG("host X does have DRI extension\n");
if (!host_has_extension(&xcb_shape_id)) {
EPHYR_LOG("host does not have XShape extension\n");
goto out;
}
EPHYR_LOG("host X does have XShape extension\n");
#ifdef XF86DRI_EVENTS
EventType = CreateNewResourceType(XF86DRIFreeEvents, "DRIEvents");
if (!EventType) {
EPHYR_LOG_ERROR("failed to register DRI event resource type\n");
goto out;
}
#endif
if ((extEntry = AddExtension(XF86DRINAME,
XF86DRINumberEvents,
XF86DRINumberErrors,
ProcXF86DRIDispatch,
SProcXF86DRIDispatch,
NULL, StandardMinorOpcode))) {
DRIReqCode = (unsigned char) extEntry->base;
DRIErrorBase = extEntry->errorBase;
}
else {
EPHYR_LOG_ERROR("failed to register DRI extension\n");
goto out;
}
if (!dixRegisterPrivateKey(&ephyrDRIScreenKeyRec, PRIVATE_SCREEN, 0))
goto out;
if (!dixRegisterPrivateKey(&ephyrDRIWindowKeyRec, PRIVATE_WINDOW, 0))
goto out;
screen_priv = calloc(1, sizeof(EphyrDRIScreenPrivRec));
if (!screen_priv) {
EPHYR_LOG_ERROR("failed to allocate screen_priv\n");
goto out;
}
dixSetPrivate(&a_screen->devPrivates, ephyrDRIScreenKey, screen_priv);
if (!ephyrDRIScreenInit(a_screen)) {
EPHYR_LOG_ERROR("ephyrDRIScreenInit() failed\n");
goto out;
}
EphyrMirrorHostVisuals(a_screen);
is_ok = TRUE;
out:
EPHYR_LOG("leave\n");
return is_ok;
}
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