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xserver/hw/xfree86/common/xf86DGA.c

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/*
* Copyright (c) 1995 Jon Tombs
* Copyright (c) 1995, 1996, 1999 XFree86 Inc
* Copyright (c) 1998-2002 by The XFree86 Project, Inc.
*
* 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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.
*
* Except as contained in this notice, the name of the copyright holder(s)
* and author(s) shall not be used in advertising or otherwise to promote
* the sale, use or other dealings in this Software without prior written
* authorization from the copyright holder(s) and author(s).
*
* Written by Mark Vojkovich
*/
/*
* This is quite literally just two files glued together:
* hw/xfree86/common/xf86DGA.c is the first part, and
* hw/xfree86/dixmods/extmod/xf86dga2.c is the second part. One day, if
* someone actually cares about DGA, it'd be nice to clean this up. But trust
* me, I am not that person.
*/
#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif
#include <string.h>
#include <X11/X.h>
#include <X11/Xproto.h>
#include <X11/extensions/xf86dgaproto.h>
#include "dix/colormap_priv.h"
#include "dix/dix_priv.h"
#include "dix/eventconvert.h"
#include "dix/exevents_priv.h"
#include "dix/screen_hooks_priv.h"
#include "mi/mi_priv.h"
#include "xf86.h"
#include "xf86str.h"
#include "xf86Priv.h"
#include "dgaproc.h"
#include "dgaproc_priv.h"
#include "colormapst.h"
#include "pixmapstr.h"
#include "inputstr.h"
#include "globals.h"
#include "servermd.h"
#include "micmap.h"
#include "xkbsrv.h"
#include "xf86Xinput.h"
#include "exglobals.h"
#include "eventstr.h"
#include "xf86Extensions.h"
#include "misc.h"
#include "dixstruct.h"
#include "extnsionst.h"
#include "cursorstr.h"
#include "scrnintstr.h"
#include "swaprep.h"
#include "dgaproc.h"
#include "protocol-versions.h"
#define DGA_PROTOCOL_OLD_SUPPORT 1
static DevPrivateKeyRec DGAScreenKeyRec;
#define DGAScreenKeyRegistered dixPrivateKeyRegistered(&DGAScreenKeyRec)
static void DGACloseScreen(CallbackListPtr *pcbl, ScreenPtr pScreen, void *unused);
static void DGADestroyColormap(ColormapPtr pmap);
static void DGAInstallColormap(ColormapPtr pmap);
static void DGAUninstallColormap(ColormapPtr pmap);
static void DGAHandleEvent(int screen_num, InternalEvent *event,
DeviceIntPtr device);
static void
DGACopyModeInfo(DGAModePtr mode, XDGAModePtr xmode);
static unsigned char DGAReqCode = 0;
static int DGAErrorBase;
static int DGAEventBase;
#define DGA_GET_SCREEN_PRIV(pScreen) ((DGAScreenPtr) \
dixLookupPrivate(&(pScreen)->devPrivates, &DGAScreenKeyRec))
typedef struct _FakedVisualList {
Bool free;
VisualPtr pVisual;
struct _FakedVisualList *next;
} FakedVisualList;
typedef struct {
ScrnInfoPtr pScrn;
int numModes;
DGAModePtr modes;
DestroyColormapProcPtr DestroyColormap;
InstallColormapProcPtr InstallColormap;
UninstallColormapProcPtr UninstallColormap;
DGADevicePtr current;
DGAFunctionPtr funcs;
int input;
ClientPtr client;
int pixmapMode;
FakedVisualList *fakedVisuals;
ColormapPtr dgaColormap;
ColormapPtr savedColormap;
Bool grabMouse;
Bool grabKeyboard;
} DGAScreenRec, *DGAScreenPtr;
Bool
DGAInit(ScreenPtr pScreen, DGAFunctionPtr funcs, DGAModePtr modes, int num)
{
ScrnInfoPtr pScrn = xf86ScreenToScrn(pScreen);
DGAScreenPtr pScreenPriv;
int i;
if (!funcs || !funcs->SetMode || !funcs->OpenFramebuffer)
return FALSE;
if (!modes || num <= 0)
return FALSE;
if (!dixRegisterPrivateKey(&DGAScreenKeyRec, PRIVATE_SCREEN, 0))
return FALSE;
pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen);
if (!pScreenPriv) {
if (!(pScreenPriv = calloc(1, sizeof(DGAScreenRec))))
return FALSE;
dixSetPrivate(&pScreen->devPrivates, &DGAScreenKeyRec, pScreenPriv);
dixScreenHookClose(pScreen, DGACloseScreen);
pScreenPriv->DestroyColormap = pScreen->DestroyColormap;
pScreen->DestroyColormap = DGADestroyColormap;
pScreenPriv->InstallColormap = pScreen->InstallColormap;
pScreen->InstallColormap = DGAInstallColormap;
pScreenPriv->UninstallColormap = pScreen->UninstallColormap;
pScreen->UninstallColormap = DGAUninstallColormap;
}
pScreenPriv->pScrn = pScrn;
pScreenPriv->numModes = num;
pScreenPriv->modes = modes;
pScreenPriv->current = NULL;
pScreenPriv->funcs = funcs;
pScreenPriv->input = 0;
pScreenPriv->client = NULL;
pScreenPriv->fakedVisuals = NULL;
pScreenPriv->dgaColormap = NULL;
pScreenPriv->savedColormap = NULL;
pScreenPriv->grabMouse = FALSE;
pScreenPriv->grabKeyboard = FALSE;
for (i = 0; i < num; i++)
modes[i].num = i + 1;
#ifdef XINERAMA
if (!noPanoramiXExtension)
for (i = 0; i < num; i++)
modes[i].flags &= ~DGA_PIXMAP_AVAILABLE;
#endif /* XINERAMA */
return TRUE;
}
/* DGAReInitModes allows the driver to re-initialize
* the DGA mode list.
*/
Bool
DGAReInitModes(ScreenPtr pScreen, DGAModePtr modes, int num)
{
DGAScreenPtr pScreenPriv;
int i;
/* No DGA? Ignore call (but don't make it look like it failed) */
if (!DGAScreenKeyRegistered)
return TRUE;
pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen);
/* Same as above */
if (!pScreenPriv)
return TRUE;
/* Can't do this while DGA is active */
if (pScreenPriv->current)
return FALSE;
/* Quick sanity check */
if (!num)
modes = NULL;
else if (!modes)
num = 0;
pScreenPriv->numModes = num;
pScreenPriv->modes = modes;
/* This practically disables DGA. So be it. */
if (!num)
return TRUE;
for (i = 0; i < num; i++)
modes[i].num = i + 1;
#ifdef XINERAMA
if (!noPanoramiXExtension)
for (i = 0; i < num; i++)
modes[i].flags &= ~DGA_PIXMAP_AVAILABLE;
#endif /* XINERAMA */
return TRUE;
}
static void
FreeMarkedVisuals(ScreenPtr pScreen)
{
DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen);
FakedVisualList *prev, *curr, *tmp;
if (!pScreenPriv->fakedVisuals)
return;
prev = NULL;
curr = pScreenPriv->fakedVisuals;
while (curr) {
if (curr->free) {
tmp = curr;
curr = curr->next;
if (prev)
prev->next = curr;
else
pScreenPriv->fakedVisuals = curr;
free(tmp->pVisual);
free(tmp);
}
else {
prev = curr;
curr = curr->next;
}
}
}
static void DGACloseScreen(CallbackListPtr *pcbl,
ScreenPtr pScreen, void *unused)
{
DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen);
if (!pScreenPriv)
return;
mieqSetHandler(ET_DGAEvent, NULL);
pScreenPriv->pScrn->SetDGAMode(pScreenPriv->pScrn, 0, NULL);
FreeMarkedVisuals(pScreen);
dixScreenUnhookClose(pScreen, DGACloseScreen);
pScreen->DestroyColormap = pScreenPriv->DestroyColormap;
pScreen->InstallColormap = pScreenPriv->InstallColormap;
pScreen->UninstallColormap = pScreenPriv->UninstallColormap;
free(pScreenPriv);
dixSetPrivate(&pScreen->devPrivates, &DGAScreenKeyRec, NULL);
}
static void
DGADestroyColormap(ColormapPtr pmap)
{
ScreenPtr pScreen = pmap->pScreen;
DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen);
VisualPtr pVisual = pmap->pVisual;
if (pScreenPriv->fakedVisuals) {
FakedVisualList *curr = pScreenPriv->fakedVisuals;
while (curr) {
if (curr->pVisual == pVisual) {
/* We can't get rid of them yet since FreeColormap
still needs the pVisual during the cleanup */
curr->free = TRUE;
break;
}
curr = curr->next;
}
}
if (pScreenPriv->DestroyColormap) {
pScreen->DestroyColormap = pScreenPriv->DestroyColormap;
(*pScreen->DestroyColormap) (pmap);
pScreen->DestroyColormap = DGADestroyColormap;
}
}
static void
DGAInstallColormap(ColormapPtr pmap)
{
ScreenPtr pScreen = pmap->pScreen;
DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen);
if (pScreenPriv->current && pScreenPriv->dgaColormap) {
if (pmap != pScreenPriv->dgaColormap) {
pScreenPriv->savedColormap = pmap;
pmap = pScreenPriv->dgaColormap;
}
}
pScreen->InstallColormap = pScreenPriv->InstallColormap;
(*pScreen->InstallColormap) (pmap);
pScreen->InstallColormap = DGAInstallColormap;
}
static void
DGAUninstallColormap(ColormapPtr pmap)
{
ScreenPtr pScreen = pmap->pScreen;
DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen);
if (pScreenPriv->current && pScreenPriv->dgaColormap) {
if (pmap == pScreenPriv->dgaColormap) {
pScreenPriv->dgaColormap = NULL;
}
}
pScreen->UninstallColormap = pScreenPriv->UninstallColormap;
(*pScreen->UninstallColormap) (pmap);
pScreen->UninstallColormap = DGAUninstallColormap;
}
int
xf86SetDGAMode(ScrnInfoPtr pScrn, int num, DGADevicePtr devRet)
{
ScreenPtr pScreen = xf86ScrnToScreen(pScrn);
DGAScreenPtr pScreenPriv;
DGADevicePtr device;
PixmapPtr pPix = NULL;
DGAModePtr pMode = NULL;
/* First check if DGAInit was successful on this screen */
if (!DGAScreenKeyRegistered)
return BadValue;
pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen);
if (!pScreenPriv)
return BadValue;
if (!num) {
if (pScreenPriv->current) {
PixmapPtr oldPix = pScreenPriv->current->pPix;
if (oldPix) {
if (oldPix->drawable.id)
FreeResource(oldPix->drawable.id, X11_RESTYPE_NONE);
else
dixDestroyPixmap(oldPix, 0);
}
free(pScreenPriv->current);
pScreenPriv->current = NULL;
pScrn->vtSema = TRUE;
(*pScreenPriv->funcs->SetMode) (pScrn, NULL);
if (pScreenPriv->savedColormap) {
(*pScreen->InstallColormap) (pScreenPriv->savedColormap);
pScreenPriv->savedColormap = NULL;
}
pScreenPriv->dgaColormap = NULL;
(*pScrn->EnableDisableFBAccess) (pScrn, TRUE);
FreeMarkedVisuals(pScreen);
}
pScreenPriv->grabMouse = FALSE;
pScreenPriv->grabKeyboard = FALSE;
return Success;
}
if (!pScrn->vtSema && !pScreenPriv->current) /* Really switched away */
return BadAlloc;
if ((num > 0) && (num <= pScreenPriv->numModes))
pMode = &(pScreenPriv->modes[num - 1]);
else
return BadValue;
if (!(device = calloc(1, sizeof(DGADeviceRec))))
return BadAlloc;
if (!pScreenPriv->current) {
Bool oldVTSema = pScrn->vtSema;
pScrn->vtSema = FALSE; /* kludge until we rewrite VT switching */
(*pScrn->EnableDisableFBAccess) (pScrn, FALSE);
pScrn->vtSema = oldVTSema;
}
if (!(*pScreenPriv->funcs->SetMode) (pScrn, pMode)) {
free(device);
return BadAlloc;
}
pScrn->currentMode = pMode->mode;
if (!pScreenPriv->current && !pScreenPriv->input) {
/* if it's multihead we need to warp the cursor off of
our screen so it doesn't get trapped */
}
pScrn->vtSema = FALSE;
if (pScreenPriv->current) {
PixmapPtr oldPix = pScreenPriv->current->pPix;
if (oldPix) {
if (oldPix->drawable.id)
FreeResource(oldPix->drawable.id, X11_RESTYPE_NONE);
else
dixDestroyPixmap(oldPix, 0);
}
free(pScreenPriv->current);
pScreenPriv->current = NULL;
}
if (pMode->flags & DGA_PIXMAP_AVAILABLE) {
if ((pPix = (*pScreen->CreatePixmap) (pScreen, 0, 0, pMode->depth, 0))) {
(*pScreen->ModifyPixmapHeader) (pPix,
pMode->pixmapWidth,
pMode->pixmapHeight, pMode->depth,
pMode->bitsPerPixel,
pMode->bytesPerScanline,
(void *) (pMode->address));
}
}
devRet->mode = device->mode = pMode;
devRet->pPix = device->pPix = pPix;
pScreenPriv->current = device;
pScreenPriv->pixmapMode = FALSE;
pScreenPriv->grabMouse = TRUE;
pScreenPriv->grabKeyboard = TRUE;
mieqSetHandler(ET_DGAEvent, DGAHandleEvent);
return Success;
}
/*********** exported ones ***************/
static void
DGASetInputMode(int index, Bool keyboard, Bool mouse)
{
ScreenPtr pScreen = screenInfo.screens[index];
DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen);
if (pScreenPriv) {
pScreenPriv->grabMouse = mouse;
pScreenPriv->grabKeyboard = keyboard;
mieqSetHandler(ET_DGAEvent, DGAHandleEvent);
}
}
static Bool
DGAChangePixmapMode(int index, int *x, int *y, int mode)
{
DGAScreenPtr pScreenPriv;
DGADevicePtr pDev;
DGAModePtr pMode;
PixmapPtr pPix;
if (!DGAScreenKeyRegistered)
return FALSE;
pScreenPriv = DGA_GET_SCREEN_PRIV(screenInfo.screens[index]);
if (!pScreenPriv || !pScreenPriv->current || !pScreenPriv->current->pPix)
return FALSE;
pDev = pScreenPriv->current;
pPix = pDev->pPix;
pMode = pDev->mode;
if (mode) {
int shift = 2;
if (*x > (pMode->pixmapWidth - pMode->viewportWidth))
*x = pMode->pixmapWidth - pMode->viewportWidth;
if (*y > (pMode->pixmapHeight - pMode->viewportHeight))
*y = pMode->pixmapHeight - pMode->viewportHeight;
switch (xf86Screens[index]->bitsPerPixel) {
case 16:
shift = 1;
break;
case 32:
shift = 0;
break;
default:
break;
}
if (BITMAP_SCANLINE_PAD == 64)
shift++;
*x = (*x >> shift) << shift;
pPix->drawable.x = *x;
pPix->drawable.y = *y;
pPix->drawable.width = pMode->viewportWidth;
pPix->drawable.height = pMode->viewportHeight;
}
else {
pPix->drawable.x = 0;
pPix->drawable.y = 0;
pPix->drawable.width = pMode->pixmapWidth;
pPix->drawable.height = pMode->pixmapHeight;
}
pPix->drawable.serialNumber = NEXT_SERIAL_NUMBER;
pScreenPriv->pixmapMode = mode;
return TRUE;
}
Bool
DGAScreenAvailable(ScreenPtr pScreen)
{
if (!DGAScreenKeyRegistered)
return FALSE;
if (DGA_GET_SCREEN_PRIV(pScreen))
return TRUE;
return FALSE;
}
static Bool
DGAAvailable(int index)
{
ScreenPtr pScreen;
assert(index < MAXSCREENS);
pScreen = screenInfo.screens[index];
return DGAScreenAvailable(pScreen);
}
Bool
DGAActive(int index)
{
DGAScreenPtr pScreenPriv;
if (!DGAScreenKeyRegistered)
return FALSE;
pScreenPriv = DGA_GET_SCREEN_PRIV(screenInfo.screens[index]);
if (pScreenPriv && pScreenPriv->current)
return TRUE;
return FALSE;
}
/* Called by the extension to initialize a mode */
static int
DGASetMode(int index, int num, XDGAModePtr mode, PixmapPtr *pPix)
{
ScrnInfoPtr pScrn = xf86Screens[index];
DGADeviceRec device;
int ret;
/* We rely on the extension to check that DGA is available */
ret = (*pScrn->SetDGAMode) (pScrn, num, &device);
if ((ret == Success) && num) {
DGACopyModeInfo(device.mode, mode);
*pPix = device.pPix;
}
return ret;
}
/* Called from the extension to let the DDX know which events are requested */
static void
DGASelectInput(int index, ClientPtr client, long mask)
{
DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(screenInfo.screens[index]);
/* We rely on the extension to check that DGA is available */
pScreenPriv->client = client;
pScreenPriv->input = mask;
}
static int
DGAGetViewportStatus(int index)
{
DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(screenInfo.screens[index]);
/* We rely on the extension to check that DGA is active */
if (!pScreenPriv->funcs->GetViewport)
return 0;
return (*pScreenPriv->funcs->GetViewport) (pScreenPriv->pScrn);
}
static int
DGASetViewport(int index, int x, int y, int mode)
{
DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(screenInfo.screens[index]);
if (pScreenPriv->funcs->SetViewport)
(*pScreenPriv->funcs->SetViewport) (pScreenPriv->pScrn, x, y, mode);
return Success;
}
static int
BitsClear(CARD32 data)
{
int bits = 0;
CARD32 mask;
for (mask = 1; mask; mask <<= 1) {
if (!(data & mask))
bits++;
else
break;
}
return bits;
}
static int
DGACreateColormap(int index, ClientPtr client, int id, int mode, int alloc)
{
ScreenPtr pScreen = screenInfo.screens[index];
DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen);
FakedVisualList *fvlp;
VisualPtr pVisual;
DGAModePtr pMode;
ColormapPtr pmap;
if (!mode || (mode > pScreenPriv->numModes))
return BadValue;
if ((alloc != AllocNone) && (alloc != AllocAll))
return BadValue;
pMode = &(pScreenPriv->modes[mode - 1]);
if (!(pVisual = calloc(1, sizeof(VisualRec))))
return BadAlloc;
pVisual->vid = FakeClientID(0);
pVisual->class = pMode->visualClass;
pVisual->nplanes = pMode->depth;
pVisual->ColormapEntries = 1 << pMode->depth;
pVisual->bitsPerRGBValue = (pMode->depth + 2) / 3;
switch (pVisual->class) {
case PseudoColor:
case GrayScale:
case StaticGray:
pVisual->bitsPerRGBValue = 8; /* not quite */
pVisual->redMask = 0;
pVisual->greenMask = 0;
pVisual->blueMask = 0;
pVisual->offsetRed = 0;
pVisual->offsetGreen = 0;
pVisual->offsetBlue = 0;
break;
case DirectColor:
case TrueColor:
pVisual->ColormapEntries = 1 << pVisual->bitsPerRGBValue;
/* fall through */
case StaticColor:
pVisual->redMask = pMode->red_mask;
pVisual->greenMask = pMode->green_mask;
pVisual->blueMask = pMode->blue_mask;
pVisual->offsetRed = BitsClear(pVisual->redMask);
pVisual->offsetGreen = BitsClear(pVisual->greenMask);
pVisual->offsetBlue = BitsClear(pVisual->blueMask);
}
if (!(fvlp = calloc(1, sizeof(FakedVisualList)))) {
free(pVisual);
return BadAlloc;
}
fvlp->free = FALSE;
fvlp->pVisual = pVisual;
fvlp->next = pScreenPriv->fakedVisuals;
pScreenPriv->fakedVisuals = fvlp;
LEGAL_NEW_RESOURCE(id, client);
return dixCreateColormap(id, pScreen, pVisual, &pmap, alloc, client);
}
/* Called by the extension to install a colormap on DGA active screens */
static void
DGAInstallCmap(ColormapPtr cmap)
{
ScreenPtr pScreen = cmap->pScreen;
DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen);
/* We rely on the extension to check that DGA is active */
if (!pScreenPriv->dgaColormap)
pScreenPriv->savedColormap = GetInstalledmiColormap(pScreen);
pScreenPriv->dgaColormap = cmap;
(*pScreen->InstallColormap) (cmap);
}
static int
DGASync(int index)
{
DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(screenInfo.screens[index]);
/* We rely on the extension to check that DGA is active */
if (pScreenPriv->funcs->Sync)
(*pScreenPriv->funcs->Sync) (pScreenPriv->pScrn);
return Success;
}
static int
DGAFillRect(int index, int x, int y, int w, int h, unsigned long color)
{
DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(screenInfo.screens[index]);
/* We rely on the extension to check that DGA is active */
if (pScreenPriv->funcs->FillRect &&
(pScreenPriv->current->mode->flags & DGA_FILL_RECT)) {
(*pScreenPriv->funcs->FillRect) (pScreenPriv->pScrn, x, y, w, h, color);
return Success;
}
return BadMatch;
}
static int
DGABlitRect(int index, int srcx, int srcy, int w, int h, int dstx, int dsty)
{
DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(screenInfo.screens[index]);
/* We rely on the extension to check that DGA is active */
if (pScreenPriv->funcs->BlitRect &&
(pScreenPriv->current->mode->flags & DGA_BLIT_RECT)) {
(*pScreenPriv->funcs->BlitRect) (pScreenPriv->pScrn,
srcx, srcy, w, h, dstx, dsty);
return Success;
}
return BadMatch;
}
static int
DGABlitTransRect(int index,
int srcx, int srcy,
int w, int h, int dstx, int dsty, unsigned long color)
{
DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(screenInfo.screens[index]);
/* We rely on the extension to check that DGA is active */
if (pScreenPriv->funcs->BlitTransRect &&
(pScreenPriv->current->mode->flags & DGA_BLIT_RECT_TRANS)) {
(*pScreenPriv->funcs->BlitTransRect) (pScreenPriv->pScrn,
srcx, srcy, w, h, dstx, dsty,
color);
return Success;
}
return BadMatch;
}
static int
DGAGetModes(int index)
{
DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(screenInfo.screens[index]);
/* We rely on the extension to check that DGA is available */
return pScreenPriv->numModes;
}
static int
DGAGetModeInfo(int index, XDGAModePtr mode, int num)
{
DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(screenInfo.screens[index]);
/* We rely on the extension to check that DGA is available */
if ((num <= 0) || (num > pScreenPriv->numModes))
return BadValue;
DGACopyModeInfo(&(pScreenPriv->modes[num - 1]), mode);
return Success;
}
static void
DGACopyModeInfo(DGAModePtr mode, XDGAModePtr xmode)
{
DisplayModePtr dmode = mode->mode;
xmode->num = mode->num;
xmode->name = dmode->name;
xmode->VSync_num = (int) (dmode->VRefresh * 1000.0);
xmode->VSync_den = 1000;
xmode->flags = mode->flags;
xmode->imageWidth = mode->imageWidth;
xmode->imageHeight = mode->imageHeight;
xmode->pixmapWidth = mode->pixmapWidth;
xmode->pixmapHeight = mode->pixmapHeight;
xmode->bytesPerScanline = mode->bytesPerScanline;
xmode->byteOrder = mode->byteOrder;
xmode->depth = mode->depth;
xmode->bitsPerPixel = mode->bitsPerPixel;
xmode->red_mask = mode->red_mask;
xmode->green_mask = mode->green_mask;
xmode->blue_mask = mode->blue_mask;
xmode->visualClass = mode->visualClass;
xmode->viewportWidth = mode->viewportWidth;
xmode->viewportHeight = mode->viewportHeight;
xmode->xViewportStep = mode->xViewportStep;
xmode->yViewportStep = mode->yViewportStep;
xmode->maxViewportX = mode->maxViewportX;
xmode->maxViewportY = mode->maxViewportY;
xmode->viewportFlags = mode->viewportFlags;
xmode->reserved1 = mode->reserved1;
xmode->reserved2 = mode->reserved2;
xmode->offset = mode->offset;
if (dmode->Flags & V_INTERLACE)
xmode->flags |= DGA_INTERLACED;
if (dmode->Flags & V_DBLSCAN)
xmode->flags |= DGA_DOUBLESCAN;
}
Bool
DGAVTSwitch(void)
{
ScreenPtr pScreen;
int i;
for (i = 0; i < screenInfo.numScreens; i++) {
pScreen = screenInfo.screens[i];
/* Alternatively, this could send events to DGA clients */
if (DGAScreenKeyRegistered) {
DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen);
if (pScreenPriv && pScreenPriv->current)
return FALSE;
}
}
return TRUE;
}
Bool
DGAStealKeyEvent(DeviceIntPtr dev, int index, int key_code, int is_down)
{
DGAScreenPtr pScreenPriv;
DGAEvent event;
if (!DGAScreenKeyRegistered) /* no DGA */
return FALSE;
if (key_code < 8 || key_code > 255)
return FALSE;
pScreenPriv = DGA_GET_SCREEN_PRIV(screenInfo.screens[index]);
if (!pScreenPriv || !pScreenPriv->grabKeyboard) /* no direct mode */
return FALSE;
event = (DGAEvent) {
.header = ET_Internal,
.type = ET_DGAEvent,
.length = sizeof(event),
.time = GetTimeInMillis(),
.subtype = (is_down ? ET_KeyPress : ET_KeyRelease),
.detail = key_code,
.dx = 0,
.dy = 0
};
mieqEnqueue(dev, (InternalEvent *) &event);
return TRUE;
}
Bool
DGAStealMotionEvent(DeviceIntPtr dev, int index, int dx, int dy)
{
DGAScreenPtr pScreenPriv;
DGAEvent event;
if (!DGAScreenKeyRegistered) /* no DGA */
return FALSE;
pScreenPriv = DGA_GET_SCREEN_PRIV(screenInfo.screens[index]);
if (!pScreenPriv || !pScreenPriv->grabMouse) /* no direct mode */
return FALSE;
event = (DGAEvent) {
.header = ET_Internal,
.type = ET_DGAEvent,
.length = sizeof(event),
.time = GetTimeInMillis(),
.subtype = ET_Motion,
.detail = 0,
.dx = dx,
.dy = dy
};
mieqEnqueue(dev, (InternalEvent *) &event);
return TRUE;
}
Bool
DGAStealButtonEvent(DeviceIntPtr dev, int index, int button, int is_down)
{
DGAScreenPtr pScreenPriv;
DGAEvent event;
if (!DGAScreenKeyRegistered) /* no DGA */
return FALSE;
pScreenPriv = DGA_GET_SCREEN_PRIV(screenInfo.screens[index]);
if (!pScreenPriv || !pScreenPriv->grabMouse)
return FALSE;
event = (DGAEvent) {
.header = ET_Internal,
.type = ET_DGAEvent,
.length = sizeof(event),
.time = GetTimeInMillis(),
.subtype = (is_down ? ET_ButtonPress : ET_ButtonRelease),
.detail = button,
.dx = 0,
.dy = 0
};
mieqEnqueue(dev, (InternalEvent *) &event);
return TRUE;
}
/* We have the power to steal or modify events that are about to get queued */
#define NoSuchEvent 0x80000000 /* so doesn't match NoEventMask */
static Mask filters[] = {
NoSuchEvent, /* 0 */
NoSuchEvent, /* 1 */
KeyPressMask, /* KeyPress */
KeyReleaseMask, /* KeyRelease */
ButtonPressMask, /* ButtonPress */
ButtonReleaseMask, /* ButtonRelease */
PointerMotionMask, /* MotionNotify (initial state) */
};
static void
DGAProcessKeyboardEvent(ScreenPtr pScreen, DGAEvent * event, DeviceIntPtr keybd)
{
KeyClassPtr keyc = keybd->key;
DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen);
DeviceIntPtr pointer = GetMaster(keybd, POINTER_OR_FLOAT);
DeviceEvent ev = {
.header = ET_Internal,
.length = sizeof(ev),
.detail.key = event->detail,
.type = event->subtype,
.root_x = 0,
.root_y = 0,
.corestate = XkbStateFieldFromRec(&keyc->xkbInfo->state)
};
ev.corestate |= pointer->button->state;
UpdateDeviceState(keybd, &ev);
if (!InputDevIsMaster(keybd))
return;
/*
* Deliver the DGA event
*/
if (pScreenPriv->client) {
dgaEvent de = {
.u.event.time = event->time,
.u.event.dx = event->dx,
.u.event.dy = event->dy,
.u.event.screen = pScreen->myNum,
.u.event.state = ev.corestate
};
de.u.u.type = DGAEventBase + GetCoreType(ev.type);
de.u.u.detail = event->detail;
/* If the DGA client has selected input, then deliver based on the usual filter */
TryClientEvents(pScreenPriv->client, keybd, (xEvent *) &de, 1,
filters[ev.type], pScreenPriv->input, 0);
}
else {
/* If the keyboard is actively grabbed, deliver a grabbed core event */
if (keybd->deviceGrab.grab && !keybd->deviceGrab.fromPassiveGrab) {
ev.detail.key = event->detail;
ev.time = event->time;
ev.root_x = event->dx;
ev.root_y = event->dy;
ev.corestate = event->state;
ev.deviceid = keybd->id;
DeliverGrabbedEvent((InternalEvent *) &ev, keybd, FALSE);
}
}
}
static void
DGAProcessPointerEvent(ScreenPtr pScreen, DGAEvent * event, DeviceIntPtr mouse)
{
ButtonClassPtr butc = mouse->button;
DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen);
DeviceIntPtr master = GetMaster(mouse, MASTER_KEYBOARD);
DeviceEvent ev = {
.header = ET_Internal,
.length = sizeof(ev),
.detail.key = event->detail,
.type = event->subtype,
.corestate = butc ? butc->state : 0
};
if (master && master->key)
ev.corestate |= XkbStateFieldFromRec(&master->key->xkbInfo->state);
UpdateDeviceState(mouse, &ev);
if (!InputDevIsMaster(mouse))
return;
/*
* Deliver the DGA event
*/
if (pScreenPriv->client) {
int coreEquiv = GetCoreType(ev.type);
dgaEvent de = {
.u.event.time = event->time,
.u.event.dx = event->dx,
.u.event.dy = event->dy,
.u.event.screen = pScreen->myNum,
.u.event.state = ev.corestate
};
de.u.u.type = DGAEventBase + coreEquiv;
de.u.u.detail = event->detail;
/* If the DGA client has selected input, then deliver based on the usual filter */
TryClientEvents(pScreenPriv->client, mouse, (xEvent *) &de, 1,
filters[coreEquiv], pScreenPriv->input, 0);
}
else {
/* If the pointer is actively grabbed, deliver a grabbed core event */
if (mouse->deviceGrab.grab && !mouse->deviceGrab.fromPassiveGrab) {
ev.detail.button = event->detail;
ev.time = event->time;
ev.root_x = event->dx;
ev.root_y = event->dy;
ev.corestate = event->state;
/* DGA is core only, so valuators.data doesn't actually matter.
* Mask must be set for EventToCore to create motion events. */
SetBit(ev.valuators.mask, 0);
SetBit(ev.valuators.mask, 1);
DeliverGrabbedEvent((InternalEvent *) &ev, mouse, FALSE);
}
}
}
static Bool
DGAOpenFramebuffer(int index,
char **name,
unsigned char **mem, int *size, int *offset, int *flags)
{
DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(screenInfo.screens[index]);
/* We rely on the extension to check that DGA is available */
return (*pScreenPriv->funcs->OpenFramebuffer) (pScreenPriv->pScrn,
name, mem, size, offset,
flags);
}
static void
DGACloseFramebuffer(int index)
{
DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(screenInfo.screens[index]);
/* We rely on the extension to check that DGA is available */
if (pScreenPriv->funcs->CloseFramebuffer)
(*pScreenPriv->funcs->CloseFramebuffer) (pScreenPriv->pScrn);
}
/* For DGA 1.0 backwards compatibility only */
static int
DGAGetOldDGAMode(int index)
{
DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(screenInfo.screens[index]);
ScrnInfoPtr pScrn = pScreenPriv->pScrn;
DGAModePtr mode;
int i, w, h, p;
/* We rely on the extension to check that DGA is available */
w = pScrn->currentMode->HDisplay;
h = pScrn->currentMode->VDisplay;
p = pad_to_int32(pScrn->displayWidth * bits_to_bytes(pScrn->bitsPerPixel));
for (i = 0; i < pScreenPriv->numModes; i++) {
mode = &(pScreenPriv->modes[i]);
if ((mode->viewportWidth == w) && (mode->viewportHeight == h) &&
(mode->bytesPerScanline == p) &&
(mode->bitsPerPixel == pScrn->bitsPerPixel) &&
(mode->depth == pScrn->depth)) {
return mode->num;
}
}
return 0;
}
static void
DGAHandleEvent(int screen_num, InternalEvent *ev, DeviceIntPtr device)
{
DGAEvent *event = &ev->dga_event;
ScreenPtr pScreen = screenInfo.screens[screen_num];
DGAScreenPtr pScreenPriv;
/* no DGA */
if (!DGAScreenKeyRegistered || noXFree86DGAExtension)
return;
pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen);
/* DGA not initialized on this screen */
if (!pScreenPriv)
return;
switch (event->subtype) {
case KeyPress:
case KeyRelease:
DGAProcessKeyboardEvent(pScreen, event, device);
break;
case MotionNotify:
case ButtonPress:
case ButtonRelease:
DGAProcessPointerEvent(pScreen, event, device);
break;
default:
break;
}
}
static void XDGAResetProc(ExtensionEntry * extEntry);
static void DGAClientStateChange(CallbackListPtr *, void *, void *);
static DevPrivateKeyRec DGAScreenPrivateKeyRec;
#define DGAScreenPrivateKey (&DGAScreenPrivateKeyRec)
#define DGAScreenPrivateKeyRegistered (DGAScreenPrivateKeyRec.initialized)
static DevPrivateKeyRec DGAClientPrivateKeyRec;
#define DGAClientPrivateKey (&DGAClientPrivateKeyRec)
static int DGACallbackRefCount = 0;
/* This holds the client's version information */
typedef struct {
int major;
int minor;
} DGAPrivRec, *DGAPrivPtr;
#define DGA_GETCLIENT(idx) ((ClientPtr) \
dixLookupPrivate(&screenInfo.screens[idx]->devPrivates, DGAScreenPrivateKey))
#define DGA_SETCLIENT(idx,p) \
dixSetPrivate(&screenInfo.screens[idx]->devPrivates, DGAScreenPrivateKey, p)
#define DGA_GETPRIV(c) ((DGAPrivPtr) \
dixLookupPrivate(&(c)->devPrivates, DGAClientPrivateKey))
#define DGA_SETPRIV(c,p) \
dixSetPrivate(&(c)->devPrivates, DGAClientPrivateKey, p)
static void
XDGAResetProc(ExtensionEntry * extEntry)
{
DeleteCallback(&ClientStateCallback, DGAClientStateChange, NULL);
DGACallbackRefCount = 0;
}
static int
ProcXDGAQueryVersion(ClientPtr client)
{
xXDGAQueryVersionReply rep;
REQUEST_SIZE_MATCH(xXDGAQueryVersionReq);
rep.type = X_Reply;
rep.length = 0;
rep.sequenceNumber = client->sequence;
rep.majorVersion = SERVER_XDGA_MAJOR_VERSION;
rep.minorVersion = SERVER_XDGA_MINOR_VERSION;
WriteToClient(client, sizeof(xXDGAQueryVersionReply), (char *) &rep);
return Success;
}
static int
ProcXDGAOpenFramebuffer(ClientPtr client)
{
REQUEST(xXDGAOpenFramebufferReq);
xXDGAOpenFramebufferReply rep;
char *deviceName;
int nameSize;
REQUEST_SIZE_MATCH(xXDGAOpenFramebufferReq);
if (stuff->screen >= screenInfo.numScreens)
return BadValue;
if (!DGAAvailable(stuff->screen))
return DGAErrorBase + XF86DGANoDirectVideoMode;
rep.type = X_Reply;
rep.length = 0;
rep.sequenceNumber = client->sequence;
if (!DGAOpenFramebuffer(stuff->screen, &deviceName,
(unsigned char **) (&rep.mem1),
(int *) &rep.size, (int *) &rep.offset,
(int *) &rep.extra)) {
return BadAlloc;
}
nameSize = deviceName ? (strlen(deviceName) + 1) : 0;
rep.length = bytes_to_int32(nameSize);
WriteToClient(client, sizeof(xXDGAOpenFramebufferReply), (char *) &rep);
if (rep.length)
WriteToClient(client, nameSize, deviceName);
return Success;
}
static int
ProcXDGACloseFramebuffer(ClientPtr client)
{
REQUEST(xXDGACloseFramebufferReq);
REQUEST_SIZE_MATCH(xXDGACloseFramebufferReq);
if (stuff->screen >= screenInfo.numScreens)
return BadValue;
if (!DGAAvailable(stuff->screen))
return DGAErrorBase + XF86DGANoDirectVideoMode;
DGACloseFramebuffer(stuff->screen);
return Success;
}
static int
ProcXDGAQueryModes(ClientPtr client)
{
int i, num, size;
REQUEST(xXDGAQueryModesReq);
xXDGAQueryModesReply rep;
xXDGAModeInfo info;
XDGAModePtr mode;
REQUEST_SIZE_MATCH(xXDGAQueryModesReq);
if (stuff->screen >= screenInfo.numScreens)
return BadValue;
rep.type = X_Reply;
rep.length = 0;
rep.number = 0;
rep.sequenceNumber = client->sequence;
if (!DGAAvailable(stuff->screen)) {
rep.number = 0;
rep.length = 0;
WriteToClient(client, sz_xXDGAQueryModesReply, (char *) &rep);
return Success;
}
if (!(num = DGAGetModes(stuff->screen))) {
WriteToClient(client, sz_xXDGAQueryModesReply, (char *) &rep);
return Success;
}
if (!(mode = xallocarray(num, sizeof(XDGAModeRec))))
return BadAlloc;
for (i = 0; i < num; i++)
DGAGetModeInfo(stuff->screen, mode + i, i + 1);
size = num * sz_xXDGAModeInfo;
for (i = 0; i < num; i++)
size += pad_to_int32(strlen(mode[i].name) + 1); /* plus NULL */
rep.number = num;
rep.length = bytes_to_int32(size);
WriteToClient(client, sz_xXDGAQueryModesReply, (char *) &rep);
for (i = 0; i < num; i++) {
size = strlen(mode[i].name) + 1;
info.byte_order = mode[i].byteOrder;
info.depth = mode[i].depth;
info.num = mode[i].num;
info.bpp = mode[i].bitsPerPixel;
info.name_size = (size + 3) & ~3L;
info.vsync_num = mode[i].VSync_num;
info.vsync_den = mode[i].VSync_den;
info.flags = mode[i].flags;
info.image_width = mode[i].imageWidth;
info.image_height = mode[i].imageHeight;
info.pixmap_width = mode[i].pixmapWidth;
info.pixmap_height = mode[i].pixmapHeight;
info.bytes_per_scanline = mode[i].bytesPerScanline;
info.red_mask = mode[i].red_mask;
info.green_mask = mode[i].green_mask;
info.blue_mask = mode[i].blue_mask;
info.visual_class = mode[i].visualClass;
info.viewport_width = mode[i].viewportWidth;
info.viewport_height = mode[i].viewportHeight;
info.viewport_xstep = mode[i].xViewportStep;
info.viewport_ystep = mode[i].yViewportStep;
info.viewport_xmax = mode[i].maxViewportX;
info.viewport_ymax = mode[i].maxViewportY;
info.viewport_flags = mode[i].viewportFlags;
info.reserved1 = mode[i].reserved1;
info.reserved2 = mode[i].reserved2;
WriteToClient(client, sz_xXDGAModeInfo, (char *) (&info));
WriteToClient(client, size, mode[i].name);
}
free(mode);
return Success;
}
static void
DGAClientStateChange(CallbackListPtr *pcbl, void *nulldata, void *calldata)
{
NewClientInfoRec *pci = (NewClientInfoRec *) calldata;
ClientPtr client = NULL;
int i;
for (i = 0; i < screenInfo.numScreens; i++) {
if (DGA_GETCLIENT(i) == pci->client) {
client = pci->client;
break;
}
}
if (client &&
((client->clientState == ClientStateGone) ||
(client->clientState == ClientStateRetained))) {
XDGAModeRec mode;
PixmapPtr pPix;
DGA_SETCLIENT(i, NULL);
DGASelectInput(i, NULL, 0);
DGASetMode(i, 0, &mode, &pPix);
if (--DGACallbackRefCount == 0)
DeleteCallback(&ClientStateCallback, DGAClientStateChange, NULL);
}
}
static int
ProcXDGASetMode(ClientPtr client)
{
REQUEST(xXDGASetModeReq);
xXDGASetModeReply rep;
XDGAModeRec mode;
xXDGAModeInfo info;
PixmapPtr pPix;
ClientPtr owner;
int size;
REQUEST_SIZE_MATCH(xXDGASetModeReq);
if (stuff->screen >= screenInfo.numScreens)
return BadValue;
owner = DGA_GETCLIENT(stuff->screen);
rep.type = X_Reply;
rep.length = 0;
rep.offset = 0;
rep.flags = 0;
rep.sequenceNumber = client->sequence;
if (!DGAAvailable(stuff->screen))
return DGAErrorBase + XF86DGANoDirectVideoMode;
if (owner && owner != client)
return DGAErrorBase + XF86DGANoDirectVideoMode;
if (!stuff->mode) {
if (owner) {
if (--DGACallbackRefCount == 0)
DeleteCallback(&ClientStateCallback, DGAClientStateChange,
NULL);
}
DGA_SETCLIENT(stuff->screen, NULL);
DGASelectInput(stuff->screen, NULL, 0);
DGASetMode(stuff->screen, 0, &mode, &pPix);
WriteToClient(client, sz_xXDGASetModeReply, (char *) &rep);
return Success;
}
if (Success != DGASetMode(stuff->screen, stuff->mode, &mode, &pPix))
return BadValue;
if (!owner) {
if (DGACallbackRefCount++ == 0)
AddCallback(&ClientStateCallback, DGAClientStateChange, NULL);
}
DGA_SETCLIENT(stuff->screen, client);
if (pPix) {
if (AddResource(stuff->pid, X11_RESTYPE_PIXMAP, (void *) (pPix))) {
pPix->drawable.id = (int) stuff->pid;
rep.flags = DGA_PIXMAP_AVAILABLE;
}
}
size = strlen(mode.name) + 1;
info.byte_order = mode.byteOrder;
info.depth = mode.depth;
info.num = mode.num;
info.bpp = mode.bitsPerPixel;
info.name_size = (size + 3) & ~3L;
info.vsync_num = mode.VSync_num;
info.vsync_den = mode.VSync_den;
info.flags = mode.flags;
info.image_width = mode.imageWidth;
info.image_height = mode.imageHeight;
info.pixmap_width = mode.pixmapWidth;
info.pixmap_height = mode.pixmapHeight;
info.bytes_per_scanline = mode.bytesPerScanline;
info.red_mask = mode.red_mask;
info.green_mask = mode.green_mask;
info.blue_mask = mode.blue_mask;
info.visual_class = mode.visualClass;
info.viewport_width = mode.viewportWidth;
info.viewport_height = mode.viewportHeight;
info.viewport_xstep = mode.xViewportStep;
info.viewport_ystep = mode.yViewportStep;
info.viewport_xmax = mode.maxViewportX;
info.viewport_ymax = mode.maxViewportY;
info.viewport_flags = mode.viewportFlags;
info.reserved1 = mode.reserved1;
info.reserved2 = mode.reserved2;
rep.length = bytes_to_int32(sz_xXDGAModeInfo + info.name_size);
WriteToClient(client, sz_xXDGASetModeReply, (char *) &rep);
WriteToClient(client, sz_xXDGAModeInfo, (char *) (&info));
WriteToClient(client, size, mode.name);
return Success;
}
static int
ProcXDGASetViewport(ClientPtr client)
{
REQUEST(xXDGASetViewportReq);
REQUEST_SIZE_MATCH(xXDGASetViewportReq);
if (stuff->screen >= screenInfo.numScreens)
return BadValue;
if (DGA_GETCLIENT(stuff->screen) != client)
return DGAErrorBase + XF86DGADirectNotActivated;
DGASetViewport(stuff->screen, stuff->x, stuff->y, stuff->flags);
return Success;
}
static int
ProcXDGAInstallColormap(ClientPtr client)
{
ColormapPtr cmap;
int rc;
REQUEST(xXDGAInstallColormapReq);
REQUEST_SIZE_MATCH(xXDGAInstallColormapReq);
if (stuff->screen >= screenInfo.numScreens)
return BadValue;
if (DGA_GETCLIENT(stuff->screen) != client)
return DGAErrorBase + XF86DGADirectNotActivated;
rc = dixLookupResourceByType((void **) &cmap, stuff->cmap, X11_RESTYPE_COLORMAP,
client, DixInstallAccess);
if (rc != Success)
return rc;
DGAInstallCmap(cmap);
return Success;
}
static int
ProcXDGASelectInput(ClientPtr client)
{
REQUEST(xXDGASelectInputReq);
REQUEST_SIZE_MATCH(xXDGASelectInputReq);
if (stuff->screen >= screenInfo.numScreens)
return BadValue;
if (DGA_GETCLIENT(stuff->screen) != client)
return DGAErrorBase + XF86DGADirectNotActivated;
if (DGA_GETCLIENT(stuff->screen) == client)
DGASelectInput(stuff->screen, client, stuff->mask);
return Success;
}
static int
ProcXDGAFillRectangle(ClientPtr client)
{
REQUEST(xXDGAFillRectangleReq);
REQUEST_SIZE_MATCH(xXDGAFillRectangleReq);
if (stuff->screen >= screenInfo.numScreens)
return BadValue;
if (DGA_GETCLIENT(stuff->screen) != client)
return DGAErrorBase + XF86DGADirectNotActivated;
if (Success != DGAFillRect(stuff->screen, stuff->x, stuff->y,
stuff->width, stuff->height, stuff->color))
return BadMatch;
return Success;
}
static int
ProcXDGACopyArea(ClientPtr client)
{
REQUEST(xXDGACopyAreaReq);
REQUEST_SIZE_MATCH(xXDGACopyAreaReq);
if (stuff->screen >= screenInfo.numScreens)
return BadValue;
if (DGA_GETCLIENT(stuff->screen) != client)
return DGAErrorBase + XF86DGADirectNotActivated;
if (Success != DGABlitRect(stuff->screen, stuff->srcx, stuff->srcy,
stuff->width, stuff->height, stuff->dstx,
stuff->dsty))
return BadMatch;
return Success;
}
static int
ProcXDGACopyTransparentArea(ClientPtr client)
{
REQUEST(xXDGACopyTransparentAreaReq);
REQUEST_SIZE_MATCH(xXDGACopyTransparentAreaReq);
if (stuff->screen >= screenInfo.numScreens)
return BadValue;
if (DGA_GETCLIENT(stuff->screen) != client)
return DGAErrorBase + XF86DGADirectNotActivated;
if (Success != DGABlitTransRect(stuff->screen, stuff->srcx, stuff->srcy,
stuff->width, stuff->height, stuff->dstx,
stuff->dsty, stuff->key))
return BadMatch;
return Success;
}
static int
ProcXDGAGetViewportStatus(ClientPtr client)
{
REQUEST(xXDGAGetViewportStatusReq);
xXDGAGetViewportStatusReply rep;
REQUEST_SIZE_MATCH(xXDGAGetViewportStatusReq);
if (stuff->screen >= screenInfo.numScreens)
return BadValue;
if (DGA_GETCLIENT(stuff->screen) != client)
return DGAErrorBase + XF86DGADirectNotActivated;
rep.type = X_Reply;
rep.length = 0;
rep.sequenceNumber = client->sequence;
rep.status = DGAGetViewportStatus(stuff->screen);
WriteToClient(client, sizeof(xXDGAGetViewportStatusReply), (char *) &rep);
return Success;
}
static int
ProcXDGASync(ClientPtr client)
{
REQUEST(xXDGASyncReq);
xXDGASyncReply rep;
REQUEST_SIZE_MATCH(xXDGASyncReq);
if (stuff->screen >= screenInfo.numScreens)
return BadValue;
if (DGA_GETCLIENT(stuff->screen) != client)
return DGAErrorBase + XF86DGADirectNotActivated;
rep.type = X_Reply;
rep.length = 0;
rep.sequenceNumber = client->sequence;
DGASync(stuff->screen);
WriteToClient(client, sizeof(xXDGASyncReply), (char *) &rep);
return Success;
}
static int
ProcXDGASetClientVersion(ClientPtr client)
{
REQUEST(xXDGASetClientVersionReq);
DGAPrivPtr pPriv;
REQUEST_SIZE_MATCH(xXDGASetClientVersionReq);
if ((pPriv = DGA_GETPRIV(client)) == NULL) {
pPriv = calloc(1, sizeof(DGAPrivRec));
/* XXX Need to look into freeing this */
if (!pPriv)
return BadAlloc;
DGA_SETPRIV(client, pPriv);
}
pPriv->major = stuff->major;
pPriv->minor = stuff->minor;
return Success;
}
static int
ProcXDGAChangePixmapMode(ClientPtr client)
{
REQUEST(xXDGAChangePixmapModeReq);
xXDGAChangePixmapModeReply rep;
int x, y;
REQUEST_SIZE_MATCH(xXDGAChangePixmapModeReq);
if (stuff->screen >= screenInfo.numScreens)
return BadValue;
if (DGA_GETCLIENT(stuff->screen) != client)
return DGAErrorBase + XF86DGADirectNotActivated;
rep.type = X_Reply;
rep.length = 0;
rep.sequenceNumber = client->sequence;
x = stuff->x;
y = stuff->y;
if (!DGAChangePixmapMode(stuff->screen, &x, &y, stuff->flags))
return BadMatch;
rep.x = x;
rep.y = y;
WriteToClient(client, sizeof(xXDGAChangePixmapModeReply), (char *) &rep);
return Success;
}
static int
ProcXDGACreateColormap(ClientPtr client)
{
REQUEST(xXDGACreateColormapReq);
int result;
REQUEST_SIZE_MATCH(xXDGACreateColormapReq);
if (stuff->screen >= screenInfo.numScreens)
return BadValue;
if (DGA_GETCLIENT(stuff->screen) != client)
return DGAErrorBase + XF86DGADirectNotActivated;
if (!stuff->mode)
return BadValue;
result = DGACreateColormap(stuff->screen, client, stuff->id,
stuff->mode, stuff->alloc);
if (result != Success)
return result;
return Success;
}
/*
*
* Support for the old DGA protocol, used to live in xf86dga.c
*
*/
#ifdef DGA_PROTOCOL_OLD_SUPPORT
static int
ProcXF86DGAGetVideoLL(ClientPtr client)
{
REQUEST(xXF86DGAGetVideoLLReq);
xXF86DGAGetVideoLLReply rep;
XDGAModeRec mode;
int num, offset, flags;
char *name;
REQUEST_SIZE_MATCH(xXF86DGAGetVideoLLReq);
if (stuff->screen >= screenInfo.numScreens)
return BadValue;
rep.type = X_Reply;
rep.length = 0;
rep.sequenceNumber = client->sequence;
if (!DGAAvailable(stuff->screen))
return DGAErrorBase + XF86DGANoDirectVideoMode;
if (!(num = DGAGetOldDGAMode(stuff->screen)))
return DGAErrorBase + XF86DGANoDirectVideoMode;
/* get the parameters for the mode that best matches */
DGAGetModeInfo(stuff->screen, &mode, num);
if (!DGAOpenFramebuffer(stuff->screen, &name,
(unsigned char **) (&rep.offset),
(int *) (&rep.bank_size), &offset, &flags))
return BadAlloc;
rep.offset += mode.offset;
rep.width = mode.bytesPerScanline / (mode.bitsPerPixel >> 3);
rep.ram_size = rep.bank_size >> 10;
WriteToClient(client, SIZEOF(xXF86DGAGetVideoLLReply), (char *) &rep);
return Success;
}
static int
ProcXF86DGADirectVideo(ClientPtr client)
{
int num;
PixmapPtr pix;
XDGAModeRec mode;
ClientPtr owner;
REQUEST(xXF86DGADirectVideoReq);
REQUEST_SIZE_MATCH(xXF86DGADirectVideoReq);
if (stuff->screen >= screenInfo.numScreens)
return BadValue;
if (!DGAAvailable(stuff->screen))
return DGAErrorBase + XF86DGANoDirectVideoMode;
owner = DGA_GETCLIENT(stuff->screen);
if (owner && owner != client)
return DGAErrorBase + XF86DGANoDirectVideoMode;
if (stuff->enable & XF86DGADirectGraphics) {
if (!(num = DGAGetOldDGAMode(stuff->screen)))
return DGAErrorBase + XF86DGANoDirectVideoMode;
}
else
num = 0;
if (Success != DGASetMode(stuff->screen, num, &mode, &pix))
return DGAErrorBase + XF86DGAScreenNotActive;
DGASetInputMode(stuff->screen,
(stuff->enable & XF86DGADirectKeyb) != 0,
(stuff->enable & XF86DGADirectMouse) != 0);
/* We need to track the client and attach the teardown callback */
if (stuff->enable &
(XF86DGADirectGraphics | XF86DGADirectKeyb | XF86DGADirectMouse)) {
if (!owner) {
if (DGACallbackRefCount++ == 0)
AddCallback(&ClientStateCallback, DGAClientStateChange, NULL);
}
DGA_SETCLIENT(stuff->screen, client);
}
else {
if (owner) {
if (--DGACallbackRefCount == 0)
DeleteCallback(&ClientStateCallback, DGAClientStateChange,
NULL);
}
DGA_SETCLIENT(stuff->screen, NULL);
}
return Success;
}
static int
ProcXF86DGAGetViewPortSize(ClientPtr client)
{
int num;
XDGAModeRec mode;
REQUEST(xXF86DGAGetViewPortSizeReq);
xXF86DGAGetViewPortSizeReply rep;
REQUEST_SIZE_MATCH(xXF86DGAGetViewPortSizeReq);
if (stuff->screen >= screenInfo.numScreens)
return BadValue;
rep.type = X_Reply;
rep.length = 0;
rep.sequenceNumber = client->sequence;
if (!DGAAvailable(stuff->screen))
return DGAErrorBase + XF86DGANoDirectVideoMode;
if (!(num = DGAGetOldDGAMode(stuff->screen)))
return DGAErrorBase + XF86DGANoDirectVideoMode;
DGAGetModeInfo(stuff->screen, &mode, num);
rep.width = mode.viewportWidth;
rep.height = mode.viewportHeight;
WriteToClient(client, SIZEOF(xXF86DGAGetViewPortSizeReply), (char *) &rep);
return Success;
}
static int
ProcXF86DGASetViewPort(ClientPtr client)
{
REQUEST(xXF86DGASetViewPortReq);
REQUEST_SIZE_MATCH(xXF86DGASetViewPortReq);
if (stuff->screen >= screenInfo.numScreens)
return BadValue;
if (DGA_GETCLIENT(stuff->screen) != client)
return DGAErrorBase + XF86DGADirectNotActivated;
if (!DGAAvailable(stuff->screen))
return DGAErrorBase + XF86DGANoDirectVideoMode;
if (!DGAActive(stuff->screen))
return DGAErrorBase + XF86DGADirectNotActivated;
if (DGASetViewport(stuff->screen, stuff->x, stuff->y, DGA_FLIP_RETRACE)
!= Success)
return DGAErrorBase + XF86DGADirectNotActivated;
return Success;
}
static int
ProcXF86DGAGetVidPage(ClientPtr client)
{
REQUEST(xXF86DGAGetVidPageReq);
xXF86DGAGetVidPageReply rep;
REQUEST_SIZE_MATCH(xXF86DGAGetVidPageReq);
if (stuff->screen >= screenInfo.numScreens)
return BadValue;
rep.type = X_Reply;
rep.length = 0;
rep.sequenceNumber = client->sequence;
rep.vpage = 0; /* silently fail */
WriteToClient(client, SIZEOF(xXF86DGAGetVidPageReply), (char *) &rep);
return Success;
}
static int
ProcXF86DGASetVidPage(ClientPtr client)
{
REQUEST(xXF86DGASetVidPageReq);
REQUEST_SIZE_MATCH(xXF86DGASetVidPageReq);
if (stuff->screen >= screenInfo.numScreens)
return BadValue;
/* silently fail */
return Success;
}
static int
ProcXF86DGAInstallColormap(ClientPtr client)
{
ColormapPtr pcmp;
int rc;
REQUEST(xXF86DGAInstallColormapReq);
REQUEST_SIZE_MATCH(xXF86DGAInstallColormapReq);
if (stuff->screen >= screenInfo.numScreens)
return BadValue;
if (DGA_GETCLIENT(stuff->screen) != client)
return DGAErrorBase + XF86DGADirectNotActivated;
if (!DGAActive(stuff->screen))
return DGAErrorBase + XF86DGADirectNotActivated;
rc = dixLookupResourceByType((void **) &pcmp, stuff->id, X11_RESTYPE_COLORMAP,
client, DixInstallAccess);
if (rc == Success) {
DGAInstallCmap(pcmp);
return Success;
}
else {
return rc;
}
}
static int
ProcXF86DGAQueryDirectVideo(ClientPtr client)
{
REQUEST(xXF86DGAQueryDirectVideoReq);
xXF86DGAQueryDirectVideoReply rep;
REQUEST_SIZE_MATCH(xXF86DGAQueryDirectVideoReq);
if (stuff->screen >= screenInfo.numScreens)
return BadValue;
rep.type = X_Reply;
rep.length = 0;
rep.sequenceNumber = client->sequence;
rep.flags = 0;
if (DGAAvailable(stuff->screen))
rep.flags = XF86DGADirectPresent;
WriteToClient(client, SIZEOF(xXF86DGAQueryDirectVideoReply), (char *) &rep);
return Success;
}
static int
ProcXF86DGAViewPortChanged(ClientPtr client)
{
REQUEST(xXF86DGAViewPortChangedReq);
xXF86DGAViewPortChangedReply rep;
REQUEST_SIZE_MATCH(xXF86DGAViewPortChangedReq);
if (stuff->screen >= screenInfo.numScreens)
return BadValue;
if (DGA_GETCLIENT(stuff->screen) != client)
return DGAErrorBase + XF86DGADirectNotActivated;
if (!DGAActive(stuff->screen))
return DGAErrorBase + XF86DGADirectNotActivated;
rep.type = X_Reply;
rep.length = 0;
rep.sequenceNumber = client->sequence;
rep.result = 1;
WriteToClient(client, SIZEOF(xXF86DGAViewPortChangedReply), (char *) &rep);
return Success;
}
#endif /* DGA_PROTOCOL_OLD_SUPPORT */
static int _X_COLD
SProcXDGADispatch(ClientPtr client)
{
return DGAErrorBase + XF86DGAClientNotLocal;
}
#if 0
#define DGA_REQ_DEBUG
#endif
#ifdef DGA_REQ_DEBUG
static char *dgaMinor[] = {
"QueryVersion",
"GetVideoLL",
"DirectVideo",
"GetViewPortSize",
"SetViewPort",
"GetVidPage",
"SetVidPage",
"InstallColormap",
"QueryDirectVideo",
"ViewPortChanged",
"10",
"11",
"QueryModes",
"SetMode",
"SetViewport",
"InstallColormap",
"SelectInput",
"FillRectangle",
"CopyArea",
"CopyTransparentArea",
"GetViewportStatus",
"Sync",
"OpenFramebuffer",
"CloseFramebuffer",
"SetClientVersion",
"ChangePixmapMode",
"CreateColormap",
};
#endif
static int
ProcXDGADispatch(ClientPtr client)
{
REQUEST(xReq);
if (!client->local)
return DGAErrorBase + XF86DGAClientNotLocal;
#ifdef DGA_REQ_DEBUG
if (stuff->data <= X_XDGACreateColormap)
fprintf(stderr, " DGA %s\n", dgaMinor[stuff->data]);
#endif
switch (stuff->data) {
/*
* DGA2 Protocol
*/
case X_XDGAQueryVersion:
return ProcXDGAQueryVersion(client);
case X_XDGAQueryModes:
return ProcXDGAQueryModes(client);
case X_XDGASetMode:
return ProcXDGASetMode(client);
case X_XDGAOpenFramebuffer:
return ProcXDGAOpenFramebuffer(client);
case X_XDGACloseFramebuffer:
return ProcXDGACloseFramebuffer(client);
case X_XDGASetViewport:
return ProcXDGASetViewport(client);
case X_XDGAInstallColormap:
return ProcXDGAInstallColormap(client);
case X_XDGASelectInput:
return ProcXDGASelectInput(client);
case X_XDGAFillRectangle:
return ProcXDGAFillRectangle(client);
case X_XDGACopyArea:
return ProcXDGACopyArea(client);
case X_XDGACopyTransparentArea:
return ProcXDGACopyTransparentArea(client);
case X_XDGAGetViewportStatus:
return ProcXDGAGetViewportStatus(client);
case X_XDGASync:
return ProcXDGASync(client);
case X_XDGASetClientVersion:
return ProcXDGASetClientVersion(client);
case X_XDGAChangePixmapMode:
return ProcXDGAChangePixmapMode(client);
case X_XDGACreateColormap:
return ProcXDGACreateColormap(client);
/*
* Old DGA Protocol
*/
#ifdef DGA_PROTOCOL_OLD_SUPPORT
case X_XF86DGAGetVideoLL:
return ProcXF86DGAGetVideoLL(client);
case X_XF86DGADirectVideo:
return ProcXF86DGADirectVideo(client);
case X_XF86DGAGetViewPortSize:
return ProcXF86DGAGetViewPortSize(client);
case X_XF86DGASetViewPort:
return ProcXF86DGASetViewPort(client);
case X_XF86DGAGetVidPage:
return ProcXF86DGAGetVidPage(client);
case X_XF86DGASetVidPage:
return ProcXF86DGASetVidPage(client);
case X_XF86DGAInstallColormap:
return ProcXF86DGAInstallColormap(client);
case X_XF86DGAQueryDirectVideo:
return ProcXF86DGAQueryDirectVideo(client);
case X_XF86DGAViewPortChanged:
return ProcXF86DGAViewPortChanged(client);
#endif /* DGA_PROTOCOL_OLD_SUPPORT */
default:
return BadRequest;
}
}
void
XFree86DGAExtensionInit(void)
{
ExtensionEntry *extEntry;
if (!dixRegisterPrivateKey(&DGAClientPrivateKeyRec, PRIVATE_CLIENT, 0))
return;
if (!dixRegisterPrivateKey(&DGAScreenPrivateKeyRec, PRIVATE_SCREEN, 0))
return;
if ((extEntry = AddExtension(XF86DGANAME,
XF86DGANumberEvents,
XF86DGANumberErrors,
ProcXDGADispatch,
SProcXDGADispatch,
XDGAResetProc, StandardMinorOpcode))) {
int i;
DGAReqCode = (unsigned char) extEntry->base;
DGAErrorBase = extEntry->errorBase;
DGAEventBase = extEntry->eventBase;
for (i = KeyPress; i <= MotionNotify; i++)
SetCriticalEvent(DGAEventBase + i);
}
}
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