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-rw-r--r--xorg-server/exa/exa_mixed.c251
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diff --git a/xorg-server/exa/exa_mixed.c b/xorg-server/exa/exa_mixed.c
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+++ b/xorg-server/exa/exa_mixed.c
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+/*
+ * Copyright © 2009 Maarten Maathuis
+ *
+ * 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 (including the next
+ * paragraph) 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 AUTHORS OR COPYRIGHT HOLDERS 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.
+ *
+ */
+
+#ifdef HAVE_DIX_CONFIG_H
+#include <dix-config.h>
+#endif
+
+#include <string.h>
+
+#include "exa_priv.h"
+#include "exa.h"
+
+/* This file holds the driver allocated pixmaps + better initial placement code.
+ * A pinned pixmap implies one that is either driver based already or otherwise altered.
+ * Proper care is taken to free the initially allocated buffer.
+ */
+
+static _X_INLINE void*
+ExaGetPixmapAddress(PixmapPtr p)
+{
+ ExaPixmapPriv(p);
+
+ return pExaPixmap->sys_ptr;
+}
+
+/**
+ * exaCreatePixmap() creates a new pixmap.
+ *
+ * Pixmaps are always marked as pinned, unless the pixmap can still be transfered to a
+ * driver pixmaps.
+ */
+PixmapPtr
+exaCreatePixmap_mixed(ScreenPtr pScreen, int w, int h, int depth,
+ unsigned usage_hint)
+{
+ PixmapPtr pPixmap;
+ ExaPixmapPrivPtr pExaPixmap;
+ int bpp;
+ size_t paddedWidth, datasize;
+ ExaScreenPriv(pScreen);
+
+ if (w > 32767 || h > 32767)
+ return NullPixmap;
+
+ swap(pExaScr, pScreen, CreatePixmap);
+ pPixmap = pScreen->CreatePixmap(pScreen, 0, 0, depth, usage_hint);
+ swap(pExaScr, pScreen, CreatePixmap);
+
+ if (!pPixmap)
+ return NULL;
+
+ pExaPixmap = ExaGetPixmapPriv(pPixmap);
+ pExaPixmap->driverPriv = NULL;
+
+ bpp = pPixmap->drawable.bitsPerPixel;
+
+ paddedWidth = ((w * bpp + FB_MASK) >> FB_SHIFT) * sizeof(FbBits);
+ if (paddedWidth / 4 > 32767 || h > 32767)
+ return NullPixmap;
+
+ datasize = h * paddedWidth;
+
+ /* We will allocate the system pixmap later if needed. */
+ pPixmap->devPrivate.ptr = NULL;
+ pExaPixmap->sys_ptr = NULL;
+ pExaPixmap->sys_pitch = paddedWidth;
+
+ pExaPixmap->area = NULL;
+ pExaPixmap->offscreen = FALSE;
+ pExaPixmap->fb_ptr = NULL;
+ pExaPixmap->pDamage = NULL;
+
+ exaSetFbPitch(pExaScr, pExaPixmap, w, h, bpp);
+ exaSetAccelBlock(pExaScr, pExaPixmap,
+ w, h, bpp);
+
+ /* Avoid freeing sys_ptr. */
+ pExaPixmap->score = EXA_PIXMAP_SCORE_PINNED;
+
+ (*pScreen->ModifyPixmapHeader)(pPixmap, w, h, 0, 0,
+ paddedWidth, NULL);
+
+ /* We want to be able to transfer the pixmap to driver memory later on. */
+ pExaPixmap->score = EXA_PIXMAP_SCORE_INIT;
+
+ /* A scratch pixmap will become a driver pixmap right away. */
+ if (!w || !h) {
+ exaCreateDriverPixmap_mixed(pPixmap);
+ } else {
+ /* Set up damage tracking */
+ pExaPixmap->pDamage = DamageCreate (NULL, NULL,
+ DamageReportNone, TRUE,
+ pScreen, pPixmap);
+
+ if (pExaPixmap->pDamage == NULL) {
+ swap(pExaScr, pScreen, DestroyPixmap);
+ pScreen->DestroyPixmap (pPixmap);
+ swap(pExaScr, pScreen, DestroyPixmap);
+ return NULL;
+ }
+
+ DamageRegister (&pPixmap->drawable, pExaPixmap->pDamage);
+ /* This ensures that pending damage reflects the current operation. */
+ /* This is used by exa to optimize migration. */
+ DamageSetReportAfterOp (pExaPixmap->pDamage, TRUE);
+ }
+
+ return pPixmap;
+}
+
+Bool
+exaModifyPixmapHeader_mixed(PixmapPtr pPixmap, int width, int height, int depth,
+ int bitsPerPixel, int devKind, pointer pPixData)
+{
+ ScreenPtr pScreen = pPixmap->drawable.pScreen;
+ ExaScreenPrivPtr pExaScr;
+ ExaPixmapPrivPtr pExaPixmap;
+ Bool ret;
+
+ if (!pPixmap)
+ return FALSE;
+
+ pExaScr = ExaGetScreenPriv(pScreen);
+ pExaPixmap = ExaGetPixmapPriv(pPixmap);
+
+ if (pExaPixmap) {
+ if (!exaPixmapIsPinned(pPixmap)) {
+ free(pExaPixmap->sys_ptr);
+ pExaPixmap->sys_ptr = pPixmap->devPrivate.ptr = NULL;
+ pExaPixmap->sys_pitch = pPixmap->devKind = 0;
+
+ /* We no longer need this. */
+ if (pExaPixmap->pDamage) {
+ DamageUnregister(&pPixmap->drawable, pExaPixmap->pDamage);
+ DamageDestroy(pExaPixmap->pDamage);
+ pExaPixmap->pDamage = NULL;
+ }
+ }
+
+ if (pPixData)
+ pExaPixmap->sys_ptr = pPixData;
+
+ if (devKind > 0)
+ pExaPixmap->sys_pitch = devKind;
+
+ if (width > 0 && height > 0 && bitsPerPixel > 0) {
+ exaSetFbPitch(pExaScr, pExaPixmap,
+ width, height, bitsPerPixel);
+
+ exaSetAccelBlock(pExaScr, pExaPixmap,
+ width, height, bitsPerPixel);
+ }
+
+ /* Anything can happen, don't try to predict it all. */
+ pExaPixmap->score = EXA_PIXMAP_SCORE_PINNED;
+ }
+
+ /* Only pass driver pixmaps to the driver. */
+ if (pExaScr->info->ModifyPixmapHeader && pExaPixmap->driverPriv) {
+ ret = pExaScr->info->ModifyPixmapHeader(pPixmap, width, height, depth,
+ bitsPerPixel, devKind, pPixData);
+ /* For EXA_HANDLES_PIXMAPS, we set pPixData to NULL.
+ * If pPixmap->devPrivate.ptr is non-NULL, then we've got a non-offscreen pixmap.
+ * We need to store the pointer, because PrepareAccess won't be called.
+ */
+ if (!pPixData && pPixmap->devPrivate.ptr && pPixmap->devKind) {
+ pExaPixmap->sys_ptr = pPixmap->devPrivate.ptr;
+ pExaPixmap->sys_pitch = pPixmap->devKind;
+ }
+ if (ret == TRUE)
+ goto out;
+ }
+
+ swap(pExaScr, pScreen, ModifyPixmapHeader);
+ ret = pScreen->ModifyPixmapHeader(pPixmap, width, height, depth,
+ bitsPerPixel, devKind, pPixData);
+ swap(pExaScr, pScreen, ModifyPixmapHeader);
+
+out:
+ /* Always NULL this, we don't want lingering pointers. */
+ pPixmap->devPrivate.ptr = NULL;
+
+ return ret;
+}
+
+Bool
+exaDestroyPixmap_mixed(PixmapPtr pPixmap)
+{
+ ScreenPtr pScreen = pPixmap->drawable.pScreen;
+ ExaScreenPriv(pScreen);
+ Bool ret;
+
+ if (pPixmap->refcnt == 1)
+ {
+ ExaPixmapPriv (pPixmap);
+
+ if (pExaPixmap->driverPriv)
+ pExaScr->info->DestroyPixmap(pScreen, pExaPixmap->driverPriv);
+ else if (pExaPixmap->sys_ptr && !exaPixmapIsPinned(pPixmap))
+ free(pExaPixmap->sys_ptr);
+ pExaPixmap->driverPriv = NULL;
+ pExaPixmap->sys_ptr = NULL;
+ }
+
+ swap(pExaScr, pScreen, DestroyPixmap);
+ ret = pScreen->DestroyPixmap (pPixmap);
+ swap(pExaScr, pScreen, DestroyPixmap);
+
+ return ret;
+}
+
+Bool
+exaPixmapIsOffscreen_mixed(PixmapPtr pPixmap)
+{
+ ScreenPtr pScreen = pPixmap->drawable.pScreen;
+ ExaScreenPriv(pScreen);
+ ExaPixmapPriv(pPixmap);
+ pointer saved_ptr;
+ Bool ret;
+
+ if (!pExaPixmap->driverPriv)
+ return FALSE;
+
+ saved_ptr = pPixmap->devPrivate.ptr;
+ pPixmap->devPrivate.ptr = ExaGetPixmapAddress(pPixmap);
+ ret = pExaScr->info->PixmapIsOffscreen(pPixmap);
+ pPixmap->devPrivate.ptr = saved_ptr;
+
+ return ret;
+}