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-rw-r--r--xorg-server/hw/xfree86/modes/xf86Rotate.c1090
1 files changed, 525 insertions, 565 deletions
diff --git a/xorg-server/hw/xfree86/modes/xf86Rotate.c b/xorg-server/hw/xfree86/modes/xf86Rotate.c
index 0181bc381..57c3499ac 100644
--- a/xorg-server/hw/xfree86/modes/xf86Rotate.c
+++ b/xorg-server/hw/xfree86/modes/xf86Rotate.c
@@ -1,565 +1,525 @@
-/*
- * 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"
-#include "X11/extensions/dpmsconst.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)
-
-#define toF(x) ((float) (x) / 65536.0f)
-
-static void
-xf86RotateCrtcRedisplay (xf86CrtcPtr crtc, RegionPtr region)
-{
- ScrnInfoPtr scrn = crtc->scrn;
- ScreenPtr screen = scrn->pScreen;
- WindowPtr root = screen->root;
- PixmapPtr dst_pixmap = crtc->rotatedPixmap;
- PictFormatPtr format = compWindowFormat (screen->root);
- int error;
- PicturePtr src, dst;
- int n = RegionNumRects(region);
- BoxPtr b = RegionRects(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;
- if (crtc->transform_in_use && crtc->filter)
- SetPicturePictFilter (src, crtc->filter,
- crtc->params, crtc->nparams);
-
- if (crtc->shadowClear)
- {
- CompositePicture (PictOpSrc,
- src, NULL, dst,
- 0, 0, 0, 0, 0, 0,
- crtc->mode.HDisplay, crtc->mode.VDisplay);
- crtc->shadowClear = FALSE;
- }
- else
- {
- while (n--)
- {
- BoxRec dst_box;
-
- dst_box = *b;
- dst_box.x1 -= crtc->filter_width >> 1;
- dst_box.x2 += crtc->filter_width >> 1;
- dst_box.y1 -= crtc->filter_height >> 1;
- dst_box.y2 += crtc->filter_height >> 1;
- pixman_f_transform_bounds (&crtc->f_framebuffer_to_crtc, &dst_box);
- 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 = 0;
- damage_box.x2 = crtc->mode.HDisplay;
- damage_box.y1 = 0;
- damage_box.y2 = crtc->mode.VDisplay;
- if (!pixman_transform_bounds (&crtc->crtc_to_framebuffer, &damage_box))
- {
- damage_box.x1 = 0;
- damage_box.y1 = 0;
- damage_box.x2 = pScreen->width;
- damage_box.y2 = pScreen->height;
- }
- if (damage_box.x1 < 0) damage_box.x1 = 0;
- if (damage_box.y1 < 0) damage_box.y1 = 0;
- if (damage_box.x2 > pScreen->width) damage_box.x2 = pScreen->width;
- if (damage_box.y2 > pScreen->height) damage_box.y2 = pScreen->height;
- RegionInit(&damage_region, &damage_box, 1);
- DamageDamageRegion (&(*pScreen->GetScreenPixmap)(pScreen)->drawable,
- &damage_region);
- RegionUninit(&damage_region);
- crtc->shadowClear = TRUE;
-}
-
-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;
- EnableLimitedSchedulingLatency();
- }
-
- 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 (RegionNotEmpty(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->transform_in_use && crtc->enabled)
- {
- RegionRec crtc_damage;
-
- /* compute portion of damage that overlaps crtc */
- RegionInit(&crtc_damage, &crtc->bounds, 1);
- RegionIntersect(&crtc_damage, &crtc_damage, region);
-
- /* update damaged region */
- if (RegionNotEmpty(&crtc_damage))
- xf86RotateCrtcRedisplay (crtc, &crtc_damage);
-
- RegionUninit(&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);
- Bool rotation_active;
-
- rotation_active = xf86RotateRedisplay(pScreen);
- pScreen->BlockHandler = xf86_config->BlockHandler;
- (*pScreen->BlockHandler) (screenNum, blockData, pTimeout, pReadmask);
- /* cannot avoid re-wrapping until all wrapping is audited */
- xf86_config->BlockHandler = pScreen->BlockHandler;
- pScreen->BlockHandler = xf86RotateBlockHandler;
-}
-
-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]->transform_in_use)
- 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;
- DisableLimitedSchedulingLatency();
- }
- DamageDestroy (xf86_config->rotation_damage);
- xf86_config->rotation_damage = NULL;
- }
-}
-
-void
-xf86RotateFreeShadow(ScrnInfoPtr pScrn)
-{
- xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(pScrn);
- int c;
-
- for (c = 0; c < config->num_crtc; c++) {
- xf86CrtcPtr crtc = config->crtc[c];
-
- if (crtc->rotatedPixmap || crtc->rotatedData) {
- crtc->funcs->shadow_destroy(crtc, crtc->rotatedPixmap,
- crtc->rotatedData);
- crtc->rotatedPixmap = NULL;
- crtc->rotatedData = NULL;
- }
- }
-}
-
-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]);
-}
-
-static Bool
-xf86CrtcFitsScreen (xf86CrtcPtr crtc, struct pict_f_transform *crtc_to_fb)
-{
- ScrnInfoPtr pScrn = crtc->scrn;
- BoxRec b;
-
- /* When called before PreInit, the driver is
- * presumably doing load detect
- */
- if (pScrn->virtualX == 0 || pScrn->virtualY == 0)
- return TRUE;
-
- b.x1 = 0;
- b.y1 = 0;
- b.x2 = crtc->mode.HDisplay;
- b.y2 = crtc->mode.VDisplay;
- if (crtc_to_fb)
- pixman_f_transform_bounds (crtc_to_fb, &b);
- else {
- b.x1 += crtc->x;
- b.y1 += crtc->y;
- b.x2 += crtc->x;
- b.y2 += crtc->y;
- }
-
- return (0 <= b.x1 && b.x2 <= pScrn->virtualX &&
- 0 <= b.y1 && b.y2 <= pScrn->virtualY);
-}
-
-/*
- * A subset of xf86CrtcRotate that just deals with
- * cursor image/position transforms. Used when changing
- * the cursor transform
- */
-void
-xf86CrtcRotateCursor (xf86CrtcPtr crtc)
-{
- /* if this is called during ScreenInit() we don't have pScrn->pScreen yet */
- RRTransformPtr transform = NULL;
- PictTransform crtc_to_fb;
- struct pict_f_transform f_crtc_to_fb, f_fb_to_crtc, f_screen_to_crtc, f_crtc_to_cursor;
-
- if (crtc->transformPresent)
- transform = &crtc->transform;
-
- (void) RRTransformCompute (crtc->x, crtc->y,
- crtc->mode.HDisplay, crtc->mode.VDisplay,
- crtc->rotation,
- transform,
- &crtc->user_sprite_position_transform,
- &crtc->user_sprite_image_transform,
-
- &crtc_to_fb,
- &f_crtc_to_fb,
- &f_fb_to_crtc,
- &f_screen_to_crtc,
- &f_crtc_to_cursor,
- &crtc->sprite_transform_in_use);
- crtc->f_screen_to_crtc = f_screen_to_crtc;
- crtc->f_crtc_to_cursor = f_crtc_to_cursor;
-}
-
-Bool
-xf86CrtcRotate (xf86CrtcPtr crtc)
-{
- 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;
- struct pict_f_transform f_crtc_to_fb, f_fb_to_crtc, f_screen_to_crtc, f_crtc_to_cursor;
- xFixed *new_params = NULL;
- int new_nparams = 0;
- PictFilterPtr new_filter = NULL;
- int new_width = 0;
- int new_height = 0;
- RRTransformPtr transform = NULL;
- Bool damage = FALSE;
-
- if (crtc->transformPresent)
- transform = &crtc->transform;
-
- if (!RRTransformCompute (crtc->x, crtc->y,
- crtc->mode.HDisplay, crtc->mode.VDisplay,
- crtc->rotation,
- transform,
- &crtc->user_sprite_position_transform,
- &crtc->user_sprite_image_transform,
-
- &crtc_to_fb,
- &f_crtc_to_fb,
- &f_fb_to_crtc,
- &f_screen_to_crtc,
- &f_crtc_to_cursor,
- &crtc->sprite_transform_in_use) &&
- xf86CrtcFitsScreen (crtc, &f_crtc_to_fb))
- {
- /*
- * If the untranslated transformation is the identity,
- * disable the shadow buffer
- */
- xf86RotateDestroy (crtc);
- crtc->transform_in_use = FALSE;
- free(new_params);
- new_params = NULL;
- new_nparams = 0;
- new_filter = NULL;
- new_width = 0;
- new_height = 0;
- }
- else
- {
- /*
- * these are the size of the shadow pixmap, which
- * matches the mode, not the pre-rotated copy in the
- * frame buffer
- */
- int width = crtc->mode.HDisplay;
- int height = crtc->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 */
- damage = TRUE;
- }
-
- 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 */
- if (!xf86_config->BlockHandler) {
- xf86_config->BlockHandler = pScreen->BlockHandler;
- pScreen->BlockHandler = xf86RotateBlockHandler;
- }
- }
-#ifdef RANDR_12_INTERFACE
- if (transform)
- {
- if (transform->nparams) {
- new_params = malloc(transform->nparams * sizeof (xFixed));
- if (new_params) {
- memcpy (new_params, transform->params,
- transform->nparams * sizeof (xFixed));
- new_nparams = transform->nparams;
- new_filter = transform->filter;
- }
- } else
- new_filter = transform->filter;
- if (new_filter)
- {
- new_width = new_filter->width;
- new_height = new_filter->height;
- }
- }
-#endif
-
- 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->f_crtc_to_framebuffer = f_crtc_to_fb;
- crtc->f_framebuffer_to_crtc = f_fb_to_crtc;
- crtc->f_screen_to_crtc = f_screen_to_crtc;
- crtc->f_crtc_to_cursor = f_crtc_to_cursor;
- free(crtc->params);
- crtc->params = new_params;
- crtc->nparams = new_nparams;
- crtc->filter = new_filter;
- crtc->filter_width = new_width;
- crtc->filter_height = new_height;
- crtc->bounds.x1 = 0;
- crtc->bounds.x2 = crtc->mode.HDisplay;
- crtc->bounds.y1 = 0;
- crtc->bounds.y2 = crtc->mode.VDisplay;
- pixman_f_transform_bounds (&f_crtc_to_fb, &crtc->bounds);
-
- if (damage)
- xf86CrtcDamageShadow (crtc);
-
- /* All done */
- return TRUE;
-}
+/*
+ * 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"
+#include "X11/extensions/dpmsconst.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)
+
+#define toF(x) ((float) (x) / 65536.0f)
+
+static void
+xf86RotateCrtcRedisplay (xf86CrtcPtr crtc, RegionPtr region)
+{
+ ScrnInfoPtr scrn = crtc->scrn;
+ ScreenPtr screen = scrn->pScreen;
+ WindowPtr root = screen->root;
+ PixmapPtr dst_pixmap = crtc->rotatedPixmap;
+ PictFormatPtr format = compWindowFormat (screen->root);
+ int error;
+ PicturePtr src, dst;
+ int n = RegionNumRects(region);
+ BoxPtr b = RegionRects(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;
+ if (crtc->transform_in_use && crtc->filter)
+ SetPicturePictFilter (src, crtc->filter,
+ crtc->params, crtc->nparams);
+
+ if (crtc->shadowClear)
+ {
+ CompositePicture (PictOpSrc,
+ src, NULL, dst,
+ 0, 0, 0, 0, 0, 0,
+ crtc->mode.HDisplay, crtc->mode.VDisplay);
+ crtc->shadowClear = FALSE;
+ }
+ else
+ {
+ while (n--)
+ {
+ BoxRec dst_box;
+
+ dst_box = *b;
+ dst_box.x1 -= crtc->filter_width >> 1;
+ dst_box.x2 += crtc->filter_width >> 1;
+ dst_box.y1 -= crtc->filter_height >> 1;
+ dst_box.y2 += crtc->filter_height >> 1;
+ pixman_f_transform_bounds (&crtc->f_framebuffer_to_crtc, &dst_box);
+ 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 = 0;
+ damage_box.x2 = crtc->mode.HDisplay;
+ damage_box.y1 = 0;
+ damage_box.y2 = crtc->mode.VDisplay;
+ if (!pixman_transform_bounds (&crtc->crtc_to_framebuffer, &damage_box))
+ {
+ damage_box.x1 = 0;
+ damage_box.y1 = 0;
+ damage_box.x2 = pScreen->width;
+ damage_box.y2 = pScreen->height;
+ }
+ if (damage_box.x1 < 0) damage_box.x1 = 0;
+ if (damage_box.y1 < 0) damage_box.y1 = 0;
+ if (damage_box.x2 > pScreen->width) damage_box.x2 = pScreen->width;
+ if (damage_box.y2 > pScreen->height) damage_box.y2 = pScreen->height;
+ RegionInit(&damage_region, &damage_box, 1);
+ DamageDamageRegion (&(*pScreen->GetScreenPixmap)(pScreen)->drawable,
+ &damage_region);
+ RegionUninit(&damage_region);
+ crtc->shadowClear = TRUE;
+}
+
+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;
+ EnableLimitedSchedulingLatency();
+ }
+
+ 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 (RegionNotEmpty(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->transform_in_use && crtc->enabled)
+ {
+ RegionRec crtc_damage;
+
+ /* compute portion of damage that overlaps crtc */
+ RegionInit(&crtc_damage, &crtc->bounds, 1);
+ RegionIntersect(&crtc_damage, &crtc_damage, region);
+
+ /* update damaged region */
+ if (RegionNotEmpty(&crtc_damage))
+ xf86RotateCrtcRedisplay (crtc, &crtc_damage);
+
+ RegionUninit(&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);
+ Bool rotation_active;
+
+ rotation_active = xf86RotateRedisplay(pScreen);
+ pScreen->BlockHandler = xf86_config->BlockHandler;
+ (*pScreen->BlockHandler) (screenNum, blockData, pTimeout, pReadmask);
+ /* cannot avoid re-wrapping until all wrapping is audited */
+ xf86_config->BlockHandler = pScreen->BlockHandler;
+ pScreen->BlockHandler = xf86RotateBlockHandler;
+}
+
+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]->transform_in_use)
+ 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;
+ DisableLimitedSchedulingLatency();
+ }
+ DamageDestroy (xf86_config->rotation_damage);
+ xf86_config->rotation_damage = NULL;
+ }
+}
+
+void
+xf86RotateFreeShadow(ScrnInfoPtr pScrn)
+{
+ xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(pScrn);
+ int c;
+
+ for (c = 0; c < config->num_crtc; c++) {
+ xf86CrtcPtr crtc = config->crtc[c];
+
+ if (crtc->rotatedPixmap || crtc->rotatedData) {
+ crtc->funcs->shadow_destroy(crtc, crtc->rotatedPixmap,
+ crtc->rotatedData);
+ crtc->rotatedPixmap = NULL;
+ crtc->rotatedData = NULL;
+ }
+ }
+}
+
+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]);
+}
+
+static Bool
+xf86CrtcFitsScreen (xf86CrtcPtr crtc, struct pict_f_transform *crtc_to_fb)
+{
+ ScrnInfoPtr pScrn = crtc->scrn;
+ BoxRec b;
+
+ /* When called before PreInit, the driver is
+ * presumably doing load detect
+ */
+ if (pScrn->virtualX == 0 || pScrn->virtualY == 0)
+ return TRUE;
+
+ b.x1 = 0;
+ b.y1 = 0;
+ b.x2 = crtc->mode.HDisplay;
+ b.y2 = crtc->mode.VDisplay;
+ if (crtc_to_fb)
+ pixman_f_transform_bounds (crtc_to_fb, &b);
+ else {
+ b.x1 += crtc->x;
+ b.y1 += crtc->y;
+ b.x2 += crtc->x;
+ b.y2 += crtc->y;
+ }
+
+ return (0 <= b.x1 && b.x2 <= pScrn->virtualX &&
+ 0 <= b.y1 && b.y2 <= pScrn->virtualY);
+}
+
+Bool
+xf86CrtcRotate (xf86CrtcPtr crtc)
+{
+ 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;
+ struct pict_f_transform f_crtc_to_fb, f_fb_to_crtc;
+ xFixed *new_params = NULL;
+ int new_nparams = 0;
+ PictFilterPtr new_filter = NULL;
+ int new_width = 0;
+ int new_height = 0;
+ RRTransformPtr transform = NULL;
+ Bool damage = FALSE;
+
+ if (crtc->transformPresent)
+ transform = &crtc->transform;
+
+ if (!RRTransformCompute (crtc->x, crtc->y,
+ crtc->mode.HDisplay, crtc->mode.VDisplay,
+ crtc->rotation,
+ transform,
+
+ &crtc_to_fb,
+ &f_crtc_to_fb,
+ &f_fb_to_crtc) &&
+ xf86CrtcFitsScreen (crtc, &f_crtc_to_fb))
+ {
+ /*
+ * If the untranslated transformation is the identity,
+ * disable the shadow buffer
+ */
+ xf86RotateDestroy (crtc);
+ crtc->transform_in_use = FALSE;
+ free(new_params);
+ new_params = NULL;
+ new_nparams = 0;
+ new_filter = NULL;
+ new_width = 0;
+ new_height = 0;
+ }
+ else
+ {
+ /*
+ * these are the size of the shadow pixmap, which
+ * matches the mode, not the pre-rotated copy in the
+ * frame buffer
+ */
+ int width = crtc->mode.HDisplay;
+ int height = crtc->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 */
+ damage = TRUE;
+ }
+
+ 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 */
+ if (!xf86_config->BlockHandler) {
+ xf86_config->BlockHandler = pScreen->BlockHandler;
+ pScreen->BlockHandler = xf86RotateBlockHandler;
+ }
+ }
+#ifdef RANDR_12_INTERFACE
+ if (transform)
+ {
+ if (transform->nparams) {
+ new_params = malloc(transform->nparams * sizeof (xFixed));
+ if (new_params) {
+ memcpy (new_params, transform->params,
+ transform->nparams * sizeof (xFixed));
+ new_nparams = transform->nparams;
+ new_filter = transform->filter;
+ }
+ } else
+ new_filter = transform->filter;
+ if (new_filter)
+ {
+ new_width = new_filter->width;
+ new_height = new_filter->height;
+ }
+ }
+#endif
+
+ 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->f_crtc_to_framebuffer = f_crtc_to_fb;
+ crtc->f_framebuffer_to_crtc = f_fb_to_crtc;
+ free(crtc->params);
+ crtc->params = new_params;
+ crtc->nparams = new_nparams;
+ crtc->filter = new_filter;
+ crtc->filter_width = new_width;
+ crtc->filter_height = new_height;
+ crtc->bounds.x1 = 0;
+ crtc->bounds.x2 = crtc->mode.HDisplay;
+ crtc->bounds.y1 = 0;
+ crtc->bounds.y2 = crtc->mode.VDisplay;
+ pixman_f_transform_bounds (&f_crtc_to_fb, &crtc->bounds);
+
+ if (damage)
+ xf86CrtcDamageShadow (crtc);
+
+ /* All done */
+ return TRUE;
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-19 12:54:18 +0000