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rootless: Use screen_x and screen_y instead of pixmap pointer hacks 

This updates rootless to treat pixmaps consistently with COMPOSITE,
using the screen_x and screen_y values rather than doing hacky math.

This will allow for proper bounds checking on a given PixmapRec.

Signed-off-by: Jeremy Huddleston Sequoia <jeremyhu@apple.com>
This commit is contained in:
Jeremy Huddleston Sequoia 2023-01-01 10:57:46 -08:00
parent 820b1dc461
commit 16e7cdba48
14 changed files with 28 additions and 32 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
dix/dispatch.c
View File

@ -2182,7 +2182,7 @@ DoGetImage(ClientPtr client, int format, Drawable drawable,
PixmapPtr pPix = (*pDraw->pScreen->GetWindowPixmap) (pWin);
pBoundingDraw = &pPix->drawable;
#ifdef COMPOSITE
#if defined(COMPOSITE) || defined(ROOTLESS)
relx -= pPix->screen_x;
rely -= pPix->screen_y;
#endif

2
exa/exa.c
View File

@ -125,7 +125,7 @@ exaGetDrawablePixmap(DrawablePtr pDrawable)
void
exaGetDrawableDeltas(DrawablePtr pDrawable, PixmapPtr pPixmap, int *xp, int *yp)
{
#ifdef COMPOSITE
#if defined(COMPOSITE) || defined(ROOTLESS)
if (pDrawable->type == DRAWABLE_WINDOW) {
*xp = -pPixmap->screen_x;
*yp = -pPixmap->screen_y;

2
exa/exa_accel.c
View File

@ -963,7 +963,7 @@ exaCopyWindow(WindowPtr pWin, DDXPointRec ptOldOrg, RegionPtr prgnSrc)
RegionInit(&rgnDst, NullBox, 0);
RegionIntersect(&rgnDst, &pWin->borderClip, prgnSrc);
#ifdef COMPOSITE
#if defined(COMPOSITE) || defined(ROOTLESS)
if (pPixmap->screen_x || pPixmap->screen_y)
RegionTranslate(&rgnDst, -pPixmap->screen_x, -pPixmap->screen_y);
#endif

2
fb/fb.h
View File

@ -441,7 +441,7 @@ typedef struct {
#define __fbPixDrawableX(pPix) ((pPix)->drawable.x)
#define __fbPixDrawableY(pPix) ((pPix)->drawable.y)
#ifdef COMPOSITE
#if defined(COMPOSITE) || defined(ROOTLESS)
#define __fbPixOffXWin(pPix) (__fbPixDrawableX(pPix) - (pPix)->screen_x)
#define __fbPixOffYWin(pPix) (__fbPixDrawableY(pPix) - (pPix)->screen_y)
#else

2
fb/fbpixmap.c
View File

@ -76,7 +76,7 @@ fbCreatePixmap(ScreenPtr pScreen, int width, int height, int depth,
fbInitializeDrawable(&pPixmap->drawable);
#endif
#ifdef COMPOSITE
#if defined(COMPOSITE) || defined(ROOTLESS)
pPixmap->screen_x = 0;
pPixmap->screen_y = 0;
#endif

2
fb/fbwindow.c
View File

@ -116,7 +116,7 @@ fbCopyWindow(WindowPtr pWin, DDXPointRec ptOldOrg, RegionPtr prgnSrc)
RegionIntersect(&rgnDst, &pWin->borderClip, prgnSrc);
#ifdef COMPOSITE
#if defined(COMPOSITE) || defined(ROOTLESS)
if (pPixmap->screen_x || pPixmap->screen_y)
RegionTranslate(&rgnDst, -pPixmap->screen_x, -pPixmap->screen_y);
#endif

2
glamor/glamor_copy.c
View File

@ -781,7 +781,7 @@ glamor_copy_window(WindowPtr window, DDXPointRec old_origin, RegionPtr src_regio
RegionIntersect(&dst_region, &window->borderClip, src_region);
#ifdef COMPOSITE
#if defined(COMPOSITE) || defined(ROOTLESS)
if (pixmap->screen_x || pixmap->screen_y)
RegionTranslate(&dst_region, -pixmap->screen_x, -pixmap->screen_y);
#endif

2
glamor/glamor_pixmap.c
View File

@ -39,7 +39,7 @@ void
glamor_get_drawable_deltas(DrawablePtr drawable, PixmapPtr pixmap,
int *x, int *y)
{
#ifdef COMPOSITE
#if defined(COMPOSITE) || defined(ROOTLESS)
if (drawable->type == DRAWABLE_WINDOW) {
*x = -pixmap->screen_x;
*y = -pixmap->screen_y;

2
include/pixmapstr.h
View File

@ -78,7 +78,7 @@ typedef struct _Pixmap {
int refcnt;
int devKind; /* This is the pitch of the pixmap, typically width*bpp/8. */
DevUnion devPrivate; /* When !NULL, devPrivate.ptr points to the raw pixel data. */
#ifdef COMPOSITE
#if defined(COMPOSITE) || defined(ROOTLESS)
short screen_x;
short screen_y;
#endif

2
mi/miexpose.c
View File

@ -461,7 +461,7 @@ miPaintWindow(WindowPtr pWin, RegionPtr prgn, int what)
tile_x_off = pWin->drawable.x;
tile_y_off = pWin->drawable.y;
#ifdef COMPOSITE
#if defined(COMPOSITE) || defined(ROOTLESS)
draw_x_off = pixmap->screen_x;
draw_y_off = pixmap->screen_y;
tile_x_off -= draw_x_off;

8
miext/damage/damage.c
View File

@ -142,7 +142,7 @@ damageRegionAppend(DrawablePtr pDrawable, RegionPtr pRegion, Bool clip,
RegionRec pixClip;
int draw_x, draw_y;
#ifdef COMPOSITE
#if defined(COMPOSITE) || defined(ROOTLESS)
int screen_x = 0, screen_y = 0;
#endif
@ -150,7 +150,7 @@ damageRegionAppend(DrawablePtr pDrawable, RegionPtr pRegion, Bool clip,
if (!RegionNotEmpty(pRegion))
return;
#ifdef COMPOSITE
#if defined(COMPOSITE) || defined(ROOTLESS)
/*
* When drawing to a pixmap which is storing window contents,
* the region presented is in pixmap relative coordinates which
@ -201,7 +201,7 @@ damageRegionAppend(DrawablePtr pDrawable, RegionPtr pRegion, Bool clip,
draw_x = pDamage->pDrawable->x;
draw_y = pDamage->pDrawable->y;
#ifdef COMPOSITE
#if defined(COMPOSITE) || defined(ROOTLESS)
/*
* Need to move everyone to screen coordinates
* XXX what about off-screen pixmaps with non-zero x/y?
@ -274,7 +274,7 @@ damageRegionAppend(DrawablePtr pDrawable, RegionPtr pRegion, Bool clip,
if (pDamageRegion == pRegion && (draw_x || draw_y))
RegionTranslate(pDamageRegion, draw_x, draw_y);
}
#ifdef COMPOSITE
#if defined(COMPOSITE) || defined(ROOTLESS)
if (screen_x || screen_y)
RegionTranslate(pRegion, -screen_x, -screen_y);
#endif

18
miext/rootless/rootlessCommon.h
View File

@ -226,20 +226,10 @@ extern RegionRec rootlessHugeRoot;
* Can't access the bits before the first word of the drawable's data in
* rootless mode, so make sure our base address is always 32-bit aligned.
*/
#define SetPixmapBaseToScreen(pix, _x, _y) { \
PixmapPtr _pPix = (PixmapPtr) (pix); \
_pPix->devPrivate.ptr = (char *) (_pPix->devPrivate.ptr) - \
((int)(_x) * _pPix->drawable.bitsPerPixel/8 + \
(int)(_y) * _pPix->devKind); \
if (_pPix->drawable.bitsPerPixel != FB_UNIT) { \
size_t _diff = ((size_t) _pPix->devPrivate.ptr) & \
(FB_UNIT / CHAR_BIT - 1); \
_pPix->devPrivate.ptr = (char *) (_pPix->devPrivate.ptr) - \
_diff; \
_pPix->drawable.x = _diff / \
(_pPix->drawable.bitsPerPixel / CHAR_BIT); \
} \
}
#define SetPixmapBaseToScreen(pix, _x, _y) do { \
pix->screen_x = _x; \
pix->screen_y = _y; \
} while(0)
// Returns TRUE if this window is visible inside a frame
// (e.g. it is visible and has a top-level or root parent)

12
miext/rootless/rootlessWindow.c
View File

@ -705,11 +705,17 @@ RootlessCopyWindow(WindowPtr pWin, DDXPointRec ptOldOrg, RegionPtr prgnSrc)
else {
RootlessStartDrawing(pWin);
miCopyRegion((DrawablePtr) pWin, (DrawablePtr) pWin,
PixmapPtr pPixmap = pScreen->GetWindowPixmap(pWin);
DrawablePtr pDrawable = &pPixmap->drawable;
if (pPixmap->screen_x || pPixmap->screen_y) {
RegionTranslate(&rgnDst, -pPixmap->screen_x, -pPixmap->screen_y);
}
miCopyRegion(pDrawable, pDrawable,
0, &rgnDst, dx, dy, fbCopyWindowProc, 0, 0);
/* prgnSrc has been translated to dst position */
RootlessDamageRegion(pWin, prgnSrc);
RootlessDamageRegion(pWin, &rgnDst);
}
out:

2
present/present_scmd.c
View File

@ -137,7 +137,7 @@ present_check_flip(RRCrtcPtr crtc,
/* Does the window match the pixmap exactly? */
if (window->drawable.x != 0 || window->drawable.y != 0 ||
#ifdef COMPOSITE
#if defined(COMPOSITE) || defined(ROOTLESS)
window->drawable.x != pixmap->screen_x || window->drawable.y != pixmap->screen_y ||
#endif
window->drawable.width != pixmap->drawable.width ||