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Diffstat (limited to 'xorg-server/hw/xfree86/modes/xf86Rotate.c')
-rw-r--r--xorg-server/hw/xfree86/modes/xf86Rotate.c661
1 files changed, 661 insertions, 0 deletions
diff --git a/xorg-server/hw/xfree86/modes/xf86Rotate.c b/xorg-server/hw/xfree86/modes/xf86Rotate.c
new file mode 100644
index 000000000..e2d6295b9
--- /dev/null
+++ b/xorg-server/hw/xfree86/modes/xf86Rotate.c
@@ -0,0 +1,661 @@
+/*
+ * 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);
+ /* if this is called during ScreenInit() we don't have pScrn->pScreen yet */
+ ScreenPtr pScreen = screenInfo.screens[pScrn->scrnIndex];
+ 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
+ {
+ 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
+ */
+ int width = mode->HDisplay;
+ int height = mode->VDisplay;
+ void *shadowData = crtc->rotatedData;
+ PixmapPtr shadow = crtc->rotatedPixmap;
+ int old_width = shadow ? shadow->drawable.width : 0;
+ int 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;
+}