xserver-multidpi/hw/xfree86/common/xf86DGA.c
Eamon Walsh 4017d31902 devPrivates rework: since API is already broken, switch everything
over to new system.

Need to update documentation and address some remaining vestiges of
old system such as CursorRec structure, fb "offman" structure, and
FontRec privates.
2007-08-28 09:28:25 -04:00

1297 lines
32 KiB
C

/*
* 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
*/
#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif
#include "xf86.h"
#include "xf86str.h"
#include "xf86Priv.h"
#include "dgaproc.h"
#include <X11/extensions/xf86dgastr.h>
#include "colormapst.h"
#include "pixmapstr.h"
#include "inputstr.h"
#include "globals.h"
#include "servermd.h"
#include "micmap.h"
#ifdef XKB
#include <xkbsrv.h>
#endif
#include "xf86Xinput.h"
#include "mi.h"
static DevPrivateKey DGAScreenKey = NULL;
static int mieq_installed = 0;
static Bool DGACloseScreen(int i, ScreenPtr pScreen);
static void DGADestroyColormap(ColormapPtr pmap);
static void DGAInstallColormap(ColormapPtr pmap);
static void DGAUninstallColormap(ColormapPtr pmap);
static void DGAHandleEvent(int screen_num, xEvent *event,
DeviceIntPtr device, int nevents);
static void
DGACopyModeInfo(
DGAModePtr mode,
XDGAModePtr xmode
);
_X_EXPORT int *XDGAEventBase = NULL;
#define DGA_GET_SCREEN_PRIV(pScreen) ((DGAScreenPtr) \
dixLookupPrivate(&(pScreen)->devPrivates, DGAScreenKey))
typedef struct _FakedVisualList{
Bool free;
VisualPtr pVisual;
struct _FakedVisualList *next;
} FakedVisualList;
typedef struct {
ScrnInfoPtr pScrn;
int numModes;
DGAModePtr modes;
CloseScreenProcPtr CloseScreen;
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;
_X_EXPORT Bool
DGAInit(
ScreenPtr pScreen,
DGAFunctionPtr funcs,
DGAModePtr modes,
int num
){
ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
DGAScreenPtr pScreenPriv;
int i;
if(!funcs || !funcs->SetMode || !funcs->OpenFramebuffer)
return FALSE;
if(!modes || num <= 0)
return FALSE;
DGAScreenKey = &DGAScreenKey;
if(!(pScreenPriv = (DGAScreenPtr)xalloc(sizeof(DGAScreenRec))))
return FALSE;
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 PANORAMIX
if(!noPanoramiXExtension)
for(i = 0; i < num; i++)
modes[i].flags &= ~DGA_PIXMAP_AVAILABLE;
#endif
dixSetPrivate(&pScreen->devPrivates, DGAScreenKey, pScreenPriv);
pScreenPriv->CloseScreen = pScreen->CloseScreen;
pScreen->CloseScreen = DGACloseScreen;
pScreenPriv->DestroyColormap = pScreen->DestroyColormap;
pScreen->DestroyColormap = DGADestroyColormap;
pScreenPriv->InstallColormap = pScreen->InstallColormap;
pScreen->InstallColormap = DGAInstallColormap;
pScreenPriv->UninstallColormap = pScreen->UninstallColormap;
pScreen->UninstallColormap = DGAUninstallColormap;
return TRUE;
}
/* DGAReInitModes allows the driver to re-initialize
* the DGA mode list.
*/
_X_EXPORT 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(DGAScreenKey == NULL)
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 PANORAMIX
if(!noPanoramiXExtension)
for(i = 0; i < num; i++)
modes[i].flags &= ~DGA_PIXMAP_AVAILABLE;
#endif
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;
xfree(tmp->pVisual);
xfree(tmp);
} else {
prev = curr;
curr = curr->next;
}
}
}
static Bool
DGACloseScreen(int i, ScreenPtr pScreen)
{
DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen);
if (XDGAEventBase) {
mieqSetHandler(*XDGAEventBase + MotionNotify, NULL);
mieqSetHandler(*XDGAEventBase + ButtonPress, NULL);
mieqSetHandler(*XDGAEventBase + ButtonRelease, NULL);
mieqSetHandler(*XDGAEventBase + KeyPress, NULL);
mieqSetHandler(*XDGAEventBase + KeyRelease, NULL);
}
FreeMarkedVisuals(pScreen);
pScreen->CloseScreen = pScreenPriv->CloseScreen;
pScreen->DestroyColormap = pScreenPriv->DestroyColormap;
pScreen->InstallColormap = pScreenPriv->InstallColormap;
pScreen->UninstallColormap = pScreenPriv->UninstallColormap;
/* DGAShutdown() should have ensured that no DGA
screen were active by here */
xfree(pScreenPriv);
return((*pScreen->CloseScreen)(i, pScreen));
}
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(
int index,
int num,
DGADevicePtr devRet
){
ScreenPtr pScreen = screenInfo.screens[index];
DGAScreenPtr pScreenPriv;
ScrnInfoPtr pScrn;
DGADevicePtr device;
PixmapPtr pPix = NULL;
DGAModePtr pMode = NULL;
/* First check if DGAInit was successful on this screen */
if (DGAScreenKey == NULL)
return BadValue;
pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen);
if (!pScreenPriv)
return BadValue;
pScrn = pScreenPriv->pScrn;
if(!num) {
if(pScreenPriv->current) {
PixmapPtr oldPix = pScreenPriv->current->pPix;
if(oldPix) {
if(oldPix->drawable.id)
FreeResource(oldPix->drawable.id, RT_NONE);
else
(*pScreen->DestroyPixmap)(oldPix);
}
xfree(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)(index, 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 = (DGADevicePtr)xalloc(sizeof(DGADeviceRec))))
return BadAlloc;
if(!pScreenPriv->current) {
Bool oldVTSema = pScrn->vtSema;
pScrn->vtSema = FALSE; /* kludge until we rewrite VT switching */
(*pScrn->EnableDisableFBAccess)(index, FALSE);
pScrn->vtSema = oldVTSema;
}
if(!(*pScreenPriv->funcs->SetMode)(pScrn, pMode)) {
xfree(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, RT_NONE);
else
(*pScreen->DestroyPixmap)(oldPix);
}
xfree(pScreenPriv->current);
pScreenPriv->current = NULL;
}
if(pMode->flags & DGA_PIXMAP_AVAILABLE) {
if((pPix = (*pScreen->CreatePixmap)(pScreen, 0, 0, pMode->depth))) {
(*pScreen->ModifyPixmapHeader)(pPix,
pMode->pixmapWidth, pMode->pixmapHeight,
pMode->depth, pMode->bitsPerPixel,
pMode->bytesPerScanline,
(pointer)(pMode->address));
}
}
devRet->mode = device->mode = pMode;
devRet->pPix = device->pPix = pPix;
pScreenPriv->current = device;
pScreenPriv->pixmapMode = FALSE;
pScreenPriv->grabMouse = TRUE;
pScreenPriv->grabKeyboard = TRUE;
return Success;
}
/*********** exported ones ***************/
_X_EXPORT 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;
if (!mieq_installed) {
mieqSetHandler(*XDGAEventBase + MotionNotify, DGAHandleEvent);
mieqSetHandler(*XDGAEventBase + ButtonPress, DGAHandleEvent);
mieqSetHandler(*XDGAEventBase + ButtonRelease, DGAHandleEvent);
mieqSetHandler(*XDGAEventBase + KeyPress, DGAHandleEvent);
mieqSetHandler(*XDGAEventBase + KeyRelease, DGAHandleEvent);
mieq_installed = 1;
}
}
}
_X_EXPORT Bool
DGAChangePixmapMode(int index, int *x, int *y, int mode)
{
DGAScreenPtr pScreenPriv;
DGADevicePtr pDev;
DGAModePtr pMode;
PixmapPtr pPix;
if(DGAScreenKey == NULL)
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;
}
_X_EXPORT Bool
DGAAvailable(int index)
{
if(DGAScreenKey == NULL)
return FALSE;
if (!xf86NoSharedResources(((ScrnInfoPtr)dixLookupPrivate(
&screenInfo.screens[index]->devPrivates,
xf86ScreenKey))->scrnIndex, MEM))
return FALSE;
if(DGA_GET_SCREEN_PRIV(screenInfo.screens[index]))
return TRUE;
return FALSE;
}
_X_EXPORT Bool
DGAActive(int index)
{
DGAScreenPtr pScreenPriv;
if(DGAScreenKey == NULL)
return FALSE;
pScreenPriv = DGA_GET_SCREEN_PRIV(screenInfo.screens[index]);
if(pScreenPriv && pScreenPriv->current)
return TRUE;
return FALSE;
}
/* Called by the event code in case the server is abruptly terminated */
void
DGAShutdown()
{
ScrnInfoPtr pScrn;
int i;
if(DGAScreenKey == NULL)
return;
for(i = 0; i < screenInfo.numScreens; i++) {
pScrn = xf86Screens[i];
(void)(*pScrn->SetDGAMode)(pScrn->scrnIndex, 0, NULL);
}
}
/* Called by the extension to initialize a mode */
_X_EXPORT 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)(index, 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 */
_X_EXPORT 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;
}
_X_EXPORT 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);
}
_X_EXPORT 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;
}
_X_EXPORT 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 = xalloc(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 = xalloc(sizeof(FakedVisualList)))) {
xfree(pVisual);
return BadAlloc;
}
fvlp->free = FALSE;
fvlp->pVisual = pVisual;
fvlp->next = pScreenPriv->fakedVisuals;
pScreenPriv->fakedVisuals = fvlp;
LEGAL_NEW_RESOURCE(id, client);
return CreateColormap(id, pScreen, pVisual, &pmap, alloc, client->index);
}
/* Called by the extension to install a colormap on DGA active screens */
_X_EXPORT 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 = miInstalledMaps[pScreen->myNum];
pScreenPriv->dgaColormap = cmap;
(*pScreen->InstallColormap)(cmap);
}
_X_EXPORT 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;
}
_X_EXPORT 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;
}
_X_EXPORT 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;
}
_X_EXPORT 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;
}
_X_EXPORT 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;
}
_X_EXPORT 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(DGAScreenKey) {
DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen);
if(pScreenPriv && pScreenPriv->current)
return FALSE;
}
}
return TRUE;
}
Bool
DGAStealKeyEvent(int index, int key_code, int is_down)
{
DGAScreenPtr pScreenPriv;
dgaEvent de;
if(DGAScreenKey == NULL) /* no DGA */
return FALSE;
pScreenPriv = DGA_GET_SCREEN_PRIV(screenInfo.screens[index]);
if(!pScreenPriv || !pScreenPriv->grabKeyboard) /* no direct mode */
return FALSE;
de.u.u.type = *XDGAEventBase + (is_down ? KeyPress : KeyRelease);
de.u.u.detail = key_code;
de.u.event.time = GetTimeInMillis();
mieqEnqueue (inputInfo.keyboard, (xEvent *) &de);
return TRUE;
}
static int DGAMouseX, DGAMouseY;
Bool
DGAStealMotionEvent(int index, int dx, int dy)
{
DGAScreenPtr pScreenPriv;
dgaEvent de;
if(DGAScreenKey == NULL) /* no DGA */
return FALSE;
pScreenPriv = DGA_GET_SCREEN_PRIV(screenInfo.screens[index]);
if(!pScreenPriv || !pScreenPriv->grabMouse) /* no direct mode */
return FALSE;
DGAMouseX += dx;
if (DGAMouseX < 0)
DGAMouseX = 0;
else if (DGAMouseX > screenInfo.screens[index]->width)
DGAMouseX = screenInfo.screens[index]->width;
DGAMouseY += dy;
if (DGAMouseY < 0)
DGAMouseY = 0;
else if (DGAMouseY > screenInfo.screens[index]->height)
DGAMouseY = screenInfo.screens[index]->height;
de.u.u.type = *XDGAEventBase + MotionNotify;
de.u.u.detail = 0;
de.u.event.time = GetTimeInMillis();
de.u.event.dx = dx;
de.u.event.dy = dy;
de.u.event.pad1 = DGAMouseX;
de.u.event.pad2 = DGAMouseY;
mieqEnqueue (inputInfo.pointer, (xEvent *) &de);
return TRUE;
}
Bool
DGAStealButtonEvent(int index, int button, int is_down)
{
DGAScreenPtr pScreenPriv;
dgaEvent de;
if (DGAScreenKey == NULL)
return FALSE;
pScreenPriv = DGA_GET_SCREEN_PRIV(screenInfo.screens[index]);
if (!pScreenPriv || !pScreenPriv->grabMouse)
return FALSE;
de.u.u.type = *XDGAEventBase + (is_down ? ButtonPress : ButtonRelease);
de.u.u.detail = button;
de.u.event.time = GetTimeInMillis();
de.u.event.dx = 0;
de.u.event.dy = 0;
de.u.event.pad1 = DGAMouseX;
de.u.event.pad2 = DGAMouseY;
mieqEnqueue (inputInfo.pointer, (xEvent *) &de);
return TRUE;
}
/* We have the power to steal or modify events that are about to get queued */
Bool
DGAIsDgaEvent (xEvent *e)
{
int coreEquiv;
if (DGAScreenKey == NULL || XDGAEventBase == 0)
return FALSE;
coreEquiv = e->u.u.type - *XDGAEventBase;
if (KeyPress <= coreEquiv && coreEquiv <= MotionNotify)
return TRUE;
return FALSE;
}
#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 *de, DeviceIntPtr keybd)
{
int key, bit;
register BYTE *kptr;
register int i;
register CARD8 modifiers;
register CARD16 mask;
int coreEquiv;
xEvent core;
KeyClassPtr keyc = keybd->key;
DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen);
coreEquiv = de->u.u.type - *XDGAEventBase;
/*
* Fill in remaining event state
*/
de->u.event.dx = 0;
de->u.event.dy = 0;
de->u.event.screen = pScreen->myNum;
de->u.event.state = keyc->state | (inputInfo.pointer)->button->state;
/*
* Keep the core state in sync by duplicating what
* CoreProcessKeyboardEvent does
*/
key = de->u.u.detail;
kptr = &keyc->down[key >> 3];
bit = 1 << (key & 7);
modifiers = keyc->modifierMap[key];
switch (coreEquiv)
{
case KeyPress:
inputInfo.pointer->valuator->motionHintWindow = NullWindow;
*kptr |= bit;
keyc->prev_state = keyc->state;
#ifdef XKB
if (noXkbExtension)
#endif
{
for (i = 0, mask = 1; modifiers; i++, mask <<= 1)
{
if (mask & modifiers)
{
/* This key affects modifier "i" */
keyc->modifierKeyCount[i]++;
keyc->state |= mask;
modifiers &= ~mask;
}
}
}
break;
case KeyRelease:
inputInfo.pointer->valuator->motionHintWindow = NullWindow;
*kptr &= ~bit;
keyc->prev_state = keyc->state;
#ifdef XKB
if (noXkbExtension)
#endif
{
for (i = 0, mask = 1; modifiers; i++, mask <<= 1)
{
if (mask & modifiers) {
/* This key affects modifier "i" */
if (--keyc->modifierKeyCount[i] <= 0) {
keyc->state &= ~mask;
keyc->modifierKeyCount[i] = 0;
}
modifiers &= ~mask;
}
}
}
break;
}
/*
* Deliver the DGA event
*/
if (pScreenPriv->client)
{
/* If the DGA client has selected input, then deliver based on the usual filter */
TryClientEvents (pScreenPriv->client, (xEvent *) de, 1,
filters[coreEquiv], pScreenPriv->input, 0);
}
else
{
/* If the keyboard is actively grabbed, deliver a grabbed core event */
if (keybd->grab && !keybd->fromPassiveGrab)
{
core.u.u.type = coreEquiv;
core.u.u.detail = de->u.u.detail;
core.u.keyButtonPointer.time = de->u.event.time;
core.u.keyButtonPointer.eventX = de->u.event.dx;
core.u.keyButtonPointer.eventY = de->u.event.dy;
core.u.keyButtonPointer.rootX = de->u.event.dx;
core.u.keyButtonPointer.rootY = de->u.event.dy;
core.u.keyButtonPointer.state = de->u.event.state;
DeliverGrabbedEvent (&core, keybd, FALSE, 1);
}
}
}
static void
DGAProcessPointerEvent (ScreenPtr pScreen, dgaEvent *de, DeviceIntPtr mouse)
{
ButtonClassPtr butc = mouse->button;
int coreEquiv;
DGAScreenPtr pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen);
xEvent core;
coreEquiv = de->u.u.type - *XDGAEventBase;
/*
* Fill in remaining event state
*/
de->u.event.screen = pScreen->myNum;
de->u.event.state = butc->state | inputInfo.keyboard->key->state;
/*
* Keep the core state in sync by duplicating what
* CoreProcessPointerEvent does
*/
if (coreEquiv != MotionNotify)
{
register int key;
register BYTE *kptr;
int bit;
key = de->u.u.detail;
kptr = &butc->down[key >> 3];
bit = 1 << (key & 7);
switch (coreEquiv)
{
case ButtonPress:
mouse->valuator->motionHintWindow = NullWindow;
if (!(*kptr & bit))
butc->buttonsDown++;
butc->motionMask = ButtonMotionMask;
*kptr |= bit;
if (key <= 5)
butc->state |= (Button1Mask >> 1) << key;
break;
case ButtonRelease:
mouse->valuator->motionHintWindow = NullWindow;
if (*kptr & bit)
--butc->buttonsDown;
if (!butc->buttonsDown)
butc->motionMask = 0;
*kptr &= ~bit;
if (key == 0)
return;
if (key <= 5)
butc->state &= ~((Button1Mask >> 1) << key);
break;
}
}
/*
* Deliver the DGA event
*/
if (pScreenPriv->client)
{
/* If the DGA client has selected input, then deliver based on the usual filter */
TryClientEvents (pScreenPriv->client, (xEvent *) de, 1,
filters[coreEquiv], pScreenPriv->input, 0);
}
else
{
/* If the pointer is actively grabbed, deliver a grabbed core event */
if (mouse->grab && !mouse->fromPassiveGrab)
{
core.u.u.type = coreEquiv;
core.u.u.detail = de->u.u.detail;
core.u.keyButtonPointer.time = de->u.event.time;
core.u.keyButtonPointer.eventX = de->u.event.dx;
core.u.keyButtonPointer.eventY = de->u.event.dy;
core.u.keyButtonPointer.rootX = de->u.event.dx;
core.u.keyButtonPointer.rootY = de->u.event.dy;
core.u.keyButtonPointer.state = de->u.event.state;
DeliverGrabbedEvent (&core, mouse, FALSE, 1);
}
}
}
_X_EXPORT 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);
}
_X_EXPORT 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 */
_X_EXPORT 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 = ((pScrn->displayWidth * (pScrn->bitsPerPixel >> 3)) + 3) & ~3L;
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, xEvent *event, DeviceIntPtr device, int nevents)
{
dgaEvent *de = (dgaEvent *) event;
ScreenPtr pScreen = screenInfo.screens[screen_num];
DGAScreenPtr pScreenPriv;
int coreEquiv;
/* no DGA */
if (DGAScreenKey == NULL || XDGAEventBase == 0)
return;
pScreenPriv = DGA_GET_SCREEN_PRIV(pScreen);
/* DGA not initialized on this screen */
if (!pScreenPriv)
return;
coreEquiv = de->u.u.type - *XDGAEventBase;
/* Not a DGA event; shouldn't happen, but you never know. */
if (coreEquiv < KeyPress || coreEquiv > MotionNotify)
return;
switch (coreEquiv) {
case KeyPress:
case KeyRelease:
DGAProcessKeyboardEvent (pScreen, de, inputInfo.keyboard);
break;
default:
DGAProcessPointerEvent (pScreen, de, inputInfo.pointer);
break;
}
}