664 lines
18 KiB
C
664 lines
18 KiB
C
/*
|
|
* Copyright © 2006 Keith Packard
|
|
*
|
|
* 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 the copyright holders not be used in advertising or
|
|
* publicity pertaining to distribution of the software without specific,
|
|
* written prior permission. The copyright holders make no representations
|
|
* about the suitability of this software for any purpose. It is provided "as
|
|
* is" without express or implied warranty.
|
|
*
|
|
* THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
|
|
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
|
|
* EVENT SHALL THE COPYRIGHT HOLDERS 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.
|
|
*/
|
|
|
|
#ifdef HAVE_XORG_CONFIG_H
|
|
#include <xorg-config.h>
|
|
#else
|
|
#ifdef HAVE_CONFIG_H
|
|
#include <config.h>
|
|
#endif
|
|
#endif
|
|
|
|
#include <stddef.h>
|
|
#include <string.h>
|
|
#include <stdio.h>
|
|
|
|
#include "xf86.h"
|
|
#include "xf86DDC.h"
|
|
#include "fb.h"
|
|
#include "windowstr.h"
|
|
#include "xf86Crtc.h"
|
|
#include "xf86Modes.h"
|
|
#include "xf86RandR12.h"
|
|
#include "X11/extensions/render.h"
|
|
#define DPMS_SERVER
|
|
#include "X11/extensions/dpms.h"
|
|
#include "X11/Xatom.h"
|
|
|
|
/* borrowed from composite extension, move to Render and publish? */
|
|
|
|
static VisualPtr
|
|
compGetWindowVisual (WindowPtr pWin)
|
|
{
|
|
ScreenPtr pScreen = pWin->drawable.pScreen;
|
|
VisualID vid = wVisual (pWin);
|
|
int i;
|
|
|
|
for (i = 0; i < pScreen->numVisuals; i++)
|
|
if (pScreen->visuals[i].vid == vid)
|
|
return &pScreen->visuals[i];
|
|
return 0;
|
|
}
|
|
|
|
static PictFormatPtr
|
|
compWindowFormat (WindowPtr pWin)
|
|
{
|
|
ScreenPtr pScreen = pWin->drawable.pScreen;
|
|
|
|
return PictureMatchVisual (pScreen, pWin->drawable.depth,
|
|
compGetWindowVisual (pWin));
|
|
}
|
|
|
|
#define F(x) IntToxFixed(x)
|
|
|
|
static void
|
|
PictureTransformIdentity (PictTransformPtr matrix)
|
|
{
|
|
int i;
|
|
memset (matrix, '\0', sizeof (PictTransform));
|
|
for (i = 0; i < 3; i++)
|
|
matrix->matrix[i][i] = F(1);
|
|
}
|
|
|
|
static Bool
|
|
PictureTransformMultiply (PictTransformPtr dst, PictTransformPtr l, PictTransformPtr r)
|
|
{
|
|
PictTransform d;
|
|
int dx, dy;
|
|
int o;
|
|
|
|
for (dy = 0; dy < 3; dy++)
|
|
for (dx = 0; dx < 3; dx++)
|
|
{
|
|
xFixed_48_16 v;
|
|
xFixed_32_32 partial;
|
|
v = 0;
|
|
for (o = 0; o < 3; o++)
|
|
{
|
|
partial = (xFixed_32_32) l->matrix[dy][o] * (xFixed_32_32) r->matrix[o][dx];
|
|
v += partial >> 16;
|
|
}
|
|
if (v > MAX_FIXED_48_16 || v < MIN_FIXED_48_16)
|
|
return FALSE;
|
|
d.matrix[dy][dx] = (xFixed) v;
|
|
}
|
|
*dst = d;
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
PictureTransformInitScale (PictTransformPtr t, xFixed sx, xFixed sy)
|
|
{
|
|
memset (t, '\0', sizeof (PictTransform));
|
|
t->matrix[0][0] = sx;
|
|
t->matrix[1][1] = sy;
|
|
t->matrix[2][2] = F (1);
|
|
}
|
|
|
|
static xFixed
|
|
fixed_inverse (xFixed x)
|
|
{
|
|
return (xFixed) ((((xFixed_48_16) F(1)) * F(1)) / x);
|
|
}
|
|
|
|
static Bool
|
|
PictureTransformScale (PictTransformPtr forward,
|
|
PictTransformPtr reverse,
|
|
xFixed sx, xFixed sy)
|
|
{
|
|
PictTransform t;
|
|
|
|
PictureTransformInitScale (&t, sx, sy);
|
|
if (!PictureTransformMultiply (forward, &t, forward))
|
|
return FALSE;
|
|
PictureTransformInitScale (&t, fixed_inverse (sx), fixed_inverse (sy));
|
|
if (!PictureTransformMultiply (reverse, reverse, &t))
|
|
return FALSE;
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
PictureTransformInitRotate (PictTransformPtr t, xFixed c, xFixed s)
|
|
{
|
|
memset (t, '\0', sizeof (PictTransform));
|
|
t->matrix[0][0] = c;
|
|
t->matrix[0][1] = -s;
|
|
t->matrix[1][0] = s;
|
|
t->matrix[1][1] = c;
|
|
t->matrix[2][2] = F (1);
|
|
}
|
|
|
|
static Bool
|
|
PictureTransformRotate (PictTransformPtr forward,
|
|
PictTransformPtr reverse,
|
|
xFixed c, xFixed s)
|
|
{
|
|
PictTransform t;
|
|
PictureTransformInitRotate (&t, c, s);
|
|
if (!PictureTransformMultiply (forward, &t, forward))
|
|
return FALSE;
|
|
|
|
PictureTransformInitRotate (&t, c, -s);
|
|
if (!PictureTransformMultiply (reverse, reverse, &t))
|
|
return FALSE;
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
PictureTransformInitTranslate (PictTransformPtr t, xFixed tx, xFixed ty)
|
|
{
|
|
memset (t, '\0', sizeof (PictTransform));
|
|
t->matrix[0][0] = F (1);
|
|
t->matrix[0][2] = tx;
|
|
t->matrix[1][1] = F (1);
|
|
t->matrix[1][2] = ty;
|
|
t->matrix[2][2] = F (1);
|
|
}
|
|
|
|
static Bool
|
|
PictureTransformTranslate (PictTransformPtr forward,
|
|
PictTransformPtr reverse,
|
|
xFixed tx, xFixed ty)
|
|
{
|
|
PictTransform t;
|
|
PictureTransformInitTranslate (&t, tx, ty);
|
|
if (!PictureTransformMultiply (forward, &t, forward))
|
|
return FALSE;
|
|
|
|
PictureTransformInitTranslate (&t, -tx, -ty);
|
|
if (!PictureTransformMultiply (reverse, reverse, &t))
|
|
return FALSE;
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
PictureTransformBounds (BoxPtr b, PictTransformPtr matrix)
|
|
{
|
|
PictVector v[4];
|
|
int i;
|
|
int x1, y1, x2, y2;
|
|
|
|
v[0].vector[0] = F (b->x1); v[0].vector[1] = F (b->y1); v[0].vector[2] = F(1);
|
|
v[1].vector[0] = F (b->x2); v[1].vector[1] = F (b->y1); v[1].vector[2] = F(1);
|
|
v[2].vector[0] = F (b->x2); v[2].vector[1] = F (b->y2); v[2].vector[2] = F(1);
|
|
v[3].vector[0] = F (b->x1); v[3].vector[1] = F (b->y2); v[3].vector[2] = F(1);
|
|
for (i = 0; i < 4; i++)
|
|
{
|
|
PictureTransformPoint (matrix, &v[i]);
|
|
x1 = xFixedToInt (v[i].vector[0]);
|
|
y1 = xFixedToInt (v[i].vector[1]);
|
|
x2 = xFixedToInt (xFixedCeil (v[i].vector[0]));
|
|
y2 = xFixedToInt (xFixedCeil (v[i].vector[1]));
|
|
if (i == 0)
|
|
{
|
|
b->x1 = x1; b->y1 = y1;
|
|
b->x2 = x2; b->y2 = y2;
|
|
}
|
|
else
|
|
{
|
|
if (x1 < b->x1) b->x1 = x1;
|
|
if (y1 < b->y1) b->y1 = y1;
|
|
if (x2 > b->x2) b->x2 = x2;
|
|
if (y2 > b->y2) b->y2 = y2;
|
|
}
|
|
}
|
|
}
|
|
|
|
static Bool
|
|
PictureTransformIsIdentity(PictTransform *t)
|
|
{
|
|
return ((t->matrix[0][0] == t->matrix[1][1]) &&
|
|
(t->matrix[0][0] == t->matrix[2][2]) &&
|
|
(t->matrix[0][0] != 0) &&
|
|
(t->matrix[0][1] == 0) &&
|
|
(t->matrix[0][2] == 0) &&
|
|
(t->matrix[1][0] == 0) &&
|
|
(t->matrix[1][2] == 0) &&
|
|
(t->matrix[2][0] == 0) &&
|
|
(t->matrix[2][1] == 0));
|
|
}
|
|
|
|
#define toF(x) ((float) (x) / 65536.0f)
|
|
|
|
static void
|
|
PictureTransformErrorF (PictTransform *t)
|
|
{
|
|
ErrorF ("{ { %f %f %f } { %f %f %f } { %f %f %f } }",
|
|
toF(t->matrix[0][0]), toF(t->matrix[0][1]), toF(t->matrix[0][2]),
|
|
toF(t->matrix[1][0]), toF(t->matrix[1][1]), toF(t->matrix[1][2]),
|
|
toF(t->matrix[2][0]), toF(t->matrix[2][1]), toF(t->matrix[2][2]));
|
|
}
|
|
|
|
static Bool
|
|
PictureTransformIsInverse (char *where, PictTransform *a, PictTransform *b)
|
|
{
|
|
PictTransform t;
|
|
|
|
PictureTransformMultiply (&t, a, b);
|
|
if (!PictureTransformIsIdentity (&t))
|
|
{
|
|
ErrorF ("%s: ", where);
|
|
PictureTransformErrorF (a);
|
|
ErrorF (" * ");
|
|
PictureTransformErrorF (b);
|
|
ErrorF (" = ");
|
|
PictureTransformErrorF (a);
|
|
ErrorF ("\n");
|
|
return FALSE;
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
xf86RotateCrtcRedisplay (xf86CrtcPtr crtc, RegionPtr region)
|
|
{
|
|
ScrnInfoPtr scrn = crtc->scrn;
|
|
ScreenPtr screen = scrn->pScreen;
|
|
WindowPtr root = WindowTable[screen->myNum];
|
|
PixmapPtr dst_pixmap = crtc->rotatedPixmap;
|
|
PictFormatPtr format = compWindowFormat (WindowTable[screen->myNum]);
|
|
int error;
|
|
PicturePtr src, dst;
|
|
int n = REGION_NUM_RECTS(region);
|
|
BoxPtr b = REGION_RECTS(region);
|
|
XID include_inferiors = IncludeInferiors;
|
|
|
|
src = CreatePicture (None,
|
|
&root->drawable,
|
|
format,
|
|
CPSubwindowMode,
|
|
&include_inferiors,
|
|
serverClient,
|
|
&error);
|
|
if (!src)
|
|
return;
|
|
|
|
dst = CreatePicture (None,
|
|
&dst_pixmap->drawable,
|
|
format,
|
|
0L,
|
|
NULL,
|
|
serverClient,
|
|
&error);
|
|
if (!dst)
|
|
return;
|
|
|
|
error = SetPictureTransform (src, &crtc->crtc_to_framebuffer);
|
|
if (error)
|
|
return;
|
|
|
|
while (n--)
|
|
{
|
|
BoxRec dst_box;
|
|
|
|
dst_box = *b;
|
|
PictureTransformBounds (&dst_box, &crtc->framebuffer_to_crtc);
|
|
CompositePicture (PictOpSrc,
|
|
src, NULL, dst,
|
|
dst_box.x1, dst_box.y1, 0, 0, dst_box.x1, dst_box.y1,
|
|
dst_box.x2 - dst_box.x1,
|
|
dst_box.y2 - dst_box.y1);
|
|
b++;
|
|
}
|
|
FreePicture (src, None);
|
|
FreePicture (dst, None);
|
|
}
|
|
|
|
static void
|
|
xf86CrtcDamageShadow (xf86CrtcPtr crtc)
|
|
{
|
|
ScrnInfoPtr pScrn = crtc->scrn;
|
|
BoxRec damage_box;
|
|
RegionRec damage_region;
|
|
ScreenPtr pScreen = pScrn->pScreen;
|
|
|
|
damage_box.x1 = crtc->x;
|
|
damage_box.x2 = crtc->x + xf86ModeWidth (&crtc->mode, crtc->rotation);
|
|
damage_box.y1 = crtc->y;
|
|
damage_box.y2 = crtc->y + xf86ModeHeight (&crtc->mode, crtc->rotation);
|
|
REGION_INIT (pScreen, &damage_region, &damage_box, 1);
|
|
DamageDamageRegion (&(*pScreen->GetScreenPixmap)(pScreen)->drawable,
|
|
&damage_region);
|
|
REGION_UNINIT (pScreen, &damage_region);
|
|
}
|
|
|
|
static void
|
|
xf86RotatePrepare (ScreenPtr pScreen)
|
|
{
|
|
ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
|
|
xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
|
|
int c;
|
|
|
|
for (c = 0; c < xf86_config->num_crtc; c++)
|
|
{
|
|
xf86CrtcPtr crtc = xf86_config->crtc[c];
|
|
|
|
if (crtc->rotatedData && !crtc->rotatedPixmap)
|
|
{
|
|
crtc->rotatedPixmap = crtc->funcs->shadow_create (crtc,
|
|
crtc->rotatedData,
|
|
crtc->mode.HDisplay,
|
|
crtc->mode.VDisplay);
|
|
if (!xf86_config->rotation_damage_registered)
|
|
{
|
|
/* Hook damage to screen pixmap */
|
|
DamageRegister (&(*pScreen->GetScreenPixmap)(pScreen)->drawable,
|
|
xf86_config->rotation_damage);
|
|
xf86_config->rotation_damage_registered = TRUE;
|
|
}
|
|
|
|
xf86CrtcDamageShadow (crtc);
|
|
}
|
|
}
|
|
}
|
|
|
|
static Bool
|
|
xf86RotateRedisplay(ScreenPtr pScreen)
|
|
{
|
|
ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
|
|
xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
|
|
DamagePtr damage = xf86_config->rotation_damage;
|
|
RegionPtr region;
|
|
|
|
if (!damage)
|
|
return FALSE;
|
|
xf86RotatePrepare (pScreen);
|
|
region = DamageRegion(damage);
|
|
if (REGION_NOTEMPTY(pScreen, region))
|
|
{
|
|
int c;
|
|
SourceValidateProcPtr SourceValidate;
|
|
|
|
/*
|
|
* SourceValidate is used by the software cursor code
|
|
* to pull the cursor off of the screen when reading
|
|
* bits from the frame buffer. Bypassing this function
|
|
* leaves the software cursor in place
|
|
*/
|
|
SourceValidate = pScreen->SourceValidate;
|
|
pScreen->SourceValidate = NULL;
|
|
|
|
for (c = 0; c < xf86_config->num_crtc; c++)
|
|
{
|
|
xf86CrtcPtr crtc = xf86_config->crtc[c];
|
|
|
|
if (crtc->rotation != RR_Rotate_0 && crtc->enabled)
|
|
{
|
|
RegionRec crtc_damage;
|
|
|
|
/* compute portion of damage that overlaps crtc */
|
|
REGION_INIT(pScreen, &crtc_damage, &crtc->bounds, 1);
|
|
REGION_INTERSECT (pScreen, &crtc_damage, &crtc_damage, region);
|
|
|
|
/* update damaged region */
|
|
if (REGION_NOTEMPTY(pScreen, &crtc_damage))
|
|
xf86RotateCrtcRedisplay (crtc, &crtc_damage);
|
|
|
|
REGION_UNINIT (pScreen, &crtc_damage);
|
|
}
|
|
}
|
|
pScreen->SourceValidate = SourceValidate;
|
|
DamageEmpty(damage);
|
|
}
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
xf86RotateBlockHandler(int screenNum, pointer blockData,
|
|
pointer pTimeout, pointer pReadmask)
|
|
{
|
|
ScreenPtr pScreen = screenInfo.screens[screenNum];
|
|
ScrnInfoPtr pScrn = xf86Screens[screenNum];
|
|
xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
|
|
|
|
pScreen->BlockHandler = xf86_config->BlockHandler;
|
|
(*pScreen->BlockHandler) (screenNum, blockData, pTimeout, pReadmask);
|
|
if (xf86RotateRedisplay(pScreen))
|
|
{
|
|
/* Re-wrap if rotation is still happening */
|
|
xf86_config->BlockHandler = pScreen->BlockHandler;
|
|
pScreen->BlockHandler = xf86RotateBlockHandler;
|
|
}
|
|
}
|
|
|
|
static void
|
|
xf86RotateDestroy (xf86CrtcPtr crtc)
|
|
{
|
|
ScrnInfoPtr pScrn = crtc->scrn;
|
|
ScreenPtr pScreen = pScrn->pScreen;
|
|
xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
|
|
int c;
|
|
|
|
/* Free memory from rotation */
|
|
if (crtc->rotatedPixmap || crtc->rotatedData)
|
|
{
|
|
crtc->funcs->shadow_destroy (crtc, crtc->rotatedPixmap, crtc->rotatedData);
|
|
crtc->rotatedPixmap = NULL;
|
|
crtc->rotatedData = NULL;
|
|
}
|
|
|
|
for (c = 0; c < xf86_config->num_crtc; c++)
|
|
if (xf86_config->crtc[c]->rotatedPixmap ||
|
|
xf86_config->crtc[c]->rotatedData)
|
|
return;
|
|
|
|
/*
|
|
* Clean up damage structures when no crtcs are rotated
|
|
*/
|
|
if (xf86_config->rotation_damage)
|
|
{
|
|
/* Free damage structure */
|
|
if (xf86_config->rotation_damage_registered)
|
|
{
|
|
DamageUnregister (&(*pScreen->GetScreenPixmap)(pScreen)->drawable,
|
|
xf86_config->rotation_damage);
|
|
xf86_config->rotation_damage_registered = FALSE;
|
|
}
|
|
DamageDestroy (xf86_config->rotation_damage);
|
|
xf86_config->rotation_damage = NULL;
|
|
}
|
|
}
|
|
|
|
_X_EXPORT void
|
|
xf86RotateCloseScreen (ScreenPtr screen)
|
|
{
|
|
ScrnInfoPtr scrn = xf86Screens[screen->myNum];
|
|
xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(scrn);
|
|
int c;
|
|
|
|
for (c = 0; c < xf86_config->num_crtc; c++)
|
|
xf86RotateDestroy (xf86_config->crtc[c]);
|
|
}
|
|
|
|
_X_EXPORT Bool
|
|
xf86CrtcRotate (xf86CrtcPtr crtc, DisplayModePtr mode, Rotation rotation)
|
|
{
|
|
ScrnInfoPtr pScrn = crtc->scrn;
|
|
xf86CrtcConfigPtr xf86_config = XF86_CRTC_CONFIG_PTR(pScrn);
|
|
ScreenPtr pScreen = pScrn->pScreen;
|
|
PictTransform crtc_to_fb, fb_to_crtc;
|
|
|
|
PictureTransformIdentity (&crtc_to_fb);
|
|
PictureTransformIdentity (&fb_to_crtc);
|
|
PictureTransformIsInverse ("identity", &crtc_to_fb, &fb_to_crtc);
|
|
if (rotation != RR_Rotate_0)
|
|
{
|
|
xFixed rot_cos, rot_sin, rot_dx, rot_dy;
|
|
xFixed scale_x, scale_y, scale_dx, scale_dy;
|
|
int mode_w = crtc->mode.HDisplay;
|
|
int mode_h = crtc->mode.VDisplay;
|
|
|
|
/* rotation */
|
|
switch (rotation & 0xf) {
|
|
default:
|
|
case RR_Rotate_0:
|
|
rot_cos = F ( 1); rot_sin = F ( 0);
|
|
rot_dx = F ( 0); rot_dy = F ( 0);
|
|
break;
|
|
case RR_Rotate_90:
|
|
rot_cos = F ( 0); rot_sin = F ( 1);
|
|
rot_dx = F ( mode_h); rot_dy = F (0);
|
|
break;
|
|
case RR_Rotate_180:
|
|
rot_cos = F (-1); rot_sin = F ( 0);
|
|
rot_dx = F (mode_w); rot_dy = F ( mode_h);
|
|
break;
|
|
case RR_Rotate_270:
|
|
rot_cos = F ( 0); rot_sin = F (-1);
|
|
rot_dx = F ( 0); rot_dy = F ( mode_w);
|
|
break;
|
|
}
|
|
|
|
PictureTransformRotate (&crtc_to_fb, &fb_to_crtc, rot_cos, rot_sin);
|
|
PictureTransformIsInverse ("rotate", &crtc_to_fb, &fb_to_crtc);
|
|
|
|
PictureTransformTranslate (&crtc_to_fb, &fb_to_crtc, rot_dx, rot_dy);
|
|
PictureTransformIsInverse ("rotate translate", &crtc_to_fb, &fb_to_crtc);
|
|
|
|
/* reflection */
|
|
scale_x = F (1);
|
|
scale_dx = 0;
|
|
scale_y = F (1);
|
|
scale_dy = 0;
|
|
if (rotation & RR_Reflect_X)
|
|
{
|
|
scale_x = F(-1);
|
|
if (rotation & (RR_Rotate_0|RR_Rotate_180))
|
|
scale_dx = F(mode_w);
|
|
else
|
|
scale_dx = F(mode_h);
|
|
}
|
|
if (rotation & RR_Reflect_Y)
|
|
{
|
|
scale_y = F(-1);
|
|
if (rotation & (RR_Rotate_0|RR_Rotate_180))
|
|
scale_dy = F(mode_h);
|
|
else
|
|
scale_dy = F(mode_w);
|
|
}
|
|
|
|
PictureTransformScale (&crtc_to_fb, &fb_to_crtc, scale_x, scale_y);
|
|
PictureTransformIsInverse ("scale", &crtc_to_fb, &fb_to_crtc);
|
|
|
|
PictureTransformTranslate (&crtc_to_fb, &fb_to_crtc, scale_dx, scale_dy);
|
|
PictureTransformIsInverse ("scale translate", &crtc_to_fb, &fb_to_crtc);
|
|
|
|
}
|
|
|
|
/*
|
|
* If the untranslated transformation is the identity,
|
|
* disable the shadow buffer
|
|
*/
|
|
if (PictureTransformIsIdentity (&crtc_to_fb))
|
|
{
|
|
crtc->transform_in_use = FALSE;
|
|
PictureTransformInitTranslate (&crtc->crtc_to_framebuffer,
|
|
F (-crtc->x), F (-crtc->y));
|
|
PictureTransformInitTranslate (&crtc->framebuffer_to_crtc,
|
|
F ( crtc->x), F ( crtc->y));
|
|
xf86RotateDestroy (crtc);
|
|
}
|
|
else
|
|
{
|
|
int width, height, old_width, old_height;
|
|
void *shadowData;
|
|
PixmapPtr shadow;
|
|
PictureTransformTranslate (&crtc_to_fb, &fb_to_crtc, F(crtc->x), F(crtc->y));
|
|
PictureTransformIsInverse ("offset", &crtc_to_fb, &fb_to_crtc);
|
|
|
|
/*
|
|
* these are the size of the shadow pixmap, which
|
|
* matches the mode, not the pre-rotated copy in the
|
|
* frame buffer
|
|
*/
|
|
width = mode->HDisplay;
|
|
height = mode->VDisplay;
|
|
shadowData = crtc->rotatedData;
|
|
shadow = crtc->rotatedPixmap;
|
|
old_width = shadow ? shadow->drawable.width : 0;
|
|
old_height = shadow ? shadow->drawable.height : 0;
|
|
|
|
/* Allocate memory for rotation */
|
|
if (old_width != width || old_height != height)
|
|
{
|
|
if (shadow || shadowData)
|
|
{
|
|
crtc->funcs->shadow_destroy (crtc, shadow, shadowData);
|
|
crtc->rotatedPixmap = NULL;
|
|
crtc->rotatedData = NULL;
|
|
}
|
|
shadowData = crtc->funcs->shadow_allocate (crtc, width, height);
|
|
if (!shadowData)
|
|
goto bail1;
|
|
crtc->rotatedData = shadowData;
|
|
/* shadow will be damaged in xf86RotatePrepare */
|
|
}
|
|
else
|
|
{
|
|
/* mark shadowed area as damaged so it will be repainted */
|
|
xf86CrtcDamageShadow (crtc);
|
|
}
|
|
|
|
if (!xf86_config->rotation_damage)
|
|
{
|
|
/* Create damage structure */
|
|
xf86_config->rotation_damage = DamageCreate (NULL, NULL,
|
|
DamageReportNone,
|
|
TRUE, pScreen, pScreen);
|
|
if (!xf86_config->rotation_damage)
|
|
goto bail2;
|
|
|
|
/* Wrap block handler */
|
|
xf86_config->BlockHandler = pScreen->BlockHandler;
|
|
pScreen->BlockHandler = xf86RotateBlockHandler;
|
|
}
|
|
if (0)
|
|
{
|
|
bail2:
|
|
if (shadow || shadowData)
|
|
{
|
|
crtc->funcs->shadow_destroy (crtc, shadow, shadowData);
|
|
crtc->rotatedPixmap = NULL;
|
|
crtc->rotatedData = NULL;
|
|
}
|
|
bail1:
|
|
if (old_width && old_height)
|
|
crtc->rotatedPixmap = crtc->funcs->shadow_create (crtc,
|
|
NULL,
|
|
old_width,
|
|
old_height);
|
|
return FALSE;
|
|
}
|
|
crtc->transform_in_use = TRUE;
|
|
crtc->crtc_to_framebuffer = crtc_to_fb;
|
|
crtc->framebuffer_to_crtc = fb_to_crtc;
|
|
crtc->bounds.x1 = 0;
|
|
crtc->bounds.x2 = crtc->mode.HDisplay;
|
|
crtc->bounds.y1 = 0;
|
|
crtc->bounds.y2 = crtc->mode.VDisplay;
|
|
PictureTransformBounds (&crtc->bounds, &crtc_to_fb);
|
|
}
|
|
|
|
/* All done */
|
|
return TRUE;
|
|
}
|