svn merge -r588:HEAD ^/branches/released .

1 files changed, 523 insertions, 524 deletions

diff --git a/xorg-server/hw/kdrive/ephyr/ephyr_draw.c b/xorg-server/hw/kdrive/ephyr/ephyr_draw.c
index f9fac8007..f3e2be6eb 100644
--- a/xorg-server/hw/kdrive/ephyr/ephyr_draw.c
+++ b/xorg-server/hw/kdrive/ephyr/ephyr_draw.c
@@ -1,524 +1,523 @@
-/*
- * Copyright © 2006 Intel Corporation
- *
- * 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.
- *
- * Authors:
- *    Eric Anholt <eric@anholt.net>
- *
- */
-
-#ifdef HAVE_CONFIG_H
-#include <kdrive-config.h>
-#endif
-
-#include "ephyr.h"
-#include "exa_priv.h"
-#include "fbpict.h"
-
-#define EPHYR_TRACE_DRAW 0
-
-#if EPHYR_TRACE_DRAW
-#define TRACE_DRAW() ErrorF("%s\n", __FUNCTION__);
-#else
-#define TRACE_DRAW() do { } while (0)
-#endif
-
-/* Use some oddball alignments, to expose issues in alignment handling in EXA. */
-#define EPHYR_OFFSET_ALIGN	24
-#define EPHYR_PITCH_ALIGN	24
-
-#define EPHYR_OFFSCREEN_SIZE	(16 * 1024 * 1024)
-#define EPHYR_OFFSCREEN_BASE	(1 * 1024 * 1024)
-
-/**
- * Forces a real devPrivate.ptr for hidden pixmaps, so that we can call down to
- * fb functions.
- */
-static void
-ephyrPreparePipelinedAccess(PixmapPtr pPix, int index)
-{
-    KdScreenPriv(pPix->drawable.pScreen);
-    KdScreenInfo *screen = pScreenPriv->screen;
-    EphyrScrPriv *scrpriv = screen->driver;
-    EphyrFakexaPriv *fakexa = scrpriv->fakexa;
-
-    assert(fakexa->saved_ptrs[index] == NULL);
-    fakexa->saved_ptrs[index] = pPix->devPrivate.ptr;
-
-    if (pPix->devPrivate.ptr != NULL)
-	return;
-
-    pPix->devPrivate.ptr = fakexa->exa->memoryBase + exaGetPixmapOffset(pPix);
-}
-
-/**
- * Restores the original devPrivate.ptr of the pixmap from before we messed with
- * it.
- */
-static void
-ephyrFinishPipelinedAccess(PixmapPtr pPix, int index)
-{
-    KdScreenPriv(pPix->drawable.pScreen);
-    KdScreenInfo *screen = pScreenPriv->screen;
-    EphyrScrPriv *scrpriv = screen->driver;
-    EphyrFakexaPriv *fakexa = scrpriv->fakexa;
-
-    pPix->devPrivate.ptr = fakexa->saved_ptrs[index];
-    fakexa->saved_ptrs[index] = NULL;
-}
-
-/**
- * Sets up a scratch GC for fbFill, and saves other parameters for the
- * ephyrSolid implementation.
- */
-static Bool
-ephyrPrepareSolid(PixmapPtr pPix, int alu, Pixel pm, Pixel fg)
-{
-    ScreenPtr pScreen = pPix->drawable.pScreen;
-    KdScreenPriv(pScreen);
-    KdScreenInfo *screen = pScreenPriv->screen;
-    EphyrScrPriv *scrpriv = screen->driver;
-    EphyrFakexaPriv *fakexa = scrpriv->fakexa;
-    CARD32 tmpval[3];
-
-    ephyrPreparePipelinedAccess(pPix, EXA_PREPARE_DEST);
-
-    fakexa->pDst = pPix;
-    fakexa->pGC = GetScratchGC(pPix->drawable.depth, pScreen);
-
-    tmpval[0] = alu;
-    tmpval[1] = pm;
-    tmpval[2] = fg;
-    ChangeGC(fakexa->pGC, GCFunction | GCPlaneMask | GCForeground, 
-	     tmpval);
-
-    ValidateGC(&pPix->drawable, fakexa->pGC);
-
-    TRACE_DRAW();
-
-    return TRUE;
-}
-
-/**
- * Does an fbFill of the rectangle to be drawn.
- */
-static void
-ephyrSolid(PixmapPtr pPix, int x1, int y1, int x2, int y2)
-{
-    ScreenPtr pScreen = pPix->drawable.pScreen;
-    KdScreenPriv(pScreen);
-    KdScreenInfo *screen = pScreenPriv->screen;
-    EphyrScrPriv *scrpriv = screen->driver;
-    EphyrFakexaPriv *fakexa = scrpriv->fakexa;
-
-    fbFill(&fakexa->pDst->drawable, fakexa->pGC, x1, y1, x2 - x1, y2 - y1);
-}
-
-/**
- * Cleans up the scratch GC created in ephyrPrepareSolid.
- */
-static void
-ephyrDoneSolid(PixmapPtr pPix)
-{
-    ScreenPtr pScreen = pPix->drawable.pScreen;
-    KdScreenPriv(pScreen);
-    KdScreenInfo *screen = pScreenPriv->screen;
-    EphyrScrPriv *scrpriv = screen->driver;
-    EphyrFakexaPriv *fakexa = scrpriv->fakexa;
-
-    FreeScratchGC(fakexa->pGC);
-
-    ephyrFinishPipelinedAccess(pPix, EXA_PREPARE_DEST);
-}
-
-/**
- * Sets up a scratch GC for fbCopyArea, and saves other parameters for the
- * ephyrCopy implementation.
- */
-static Bool
-ephyrPrepareCopy(PixmapPtr pSrc, PixmapPtr pDst, int dx, int dy, int alu,
-		 Pixel pm)
-{
-    ScreenPtr pScreen = pDst->drawable.pScreen;
-    KdScreenPriv(pScreen);
-    KdScreenInfo *screen = pScreenPriv->screen;
-    EphyrScrPriv *scrpriv = screen->driver;
-    EphyrFakexaPriv *fakexa = scrpriv->fakexa;
-    CARD32 tmpval[2];
-
-    ephyrPreparePipelinedAccess(pDst, EXA_PREPARE_DEST);
-    ephyrPreparePipelinedAccess(pSrc, EXA_PREPARE_SRC);
-
-    fakexa->pSrc = pSrc;
-    fakexa->pDst = pDst;
-    fakexa->pGC = GetScratchGC(pDst->drawable.depth, pScreen);
-
-    tmpval[0] = alu;
-    tmpval[1] = pm;
-    ChangeGC (fakexa->pGC, GCFunction | GCPlaneMask, tmpval);
-
-    ValidateGC(&pDst->drawable, fakexa->pGC);
-
-    TRACE_DRAW();
-
-    return TRUE;
-}
-
-/**
- * Does an fbCopyArea to take care of the requested copy.
- */
-static void
-ephyrCopy(PixmapPtr pDst, int srcX, int srcY, int dstX, int dstY, int w, int h)
-{
-    ScreenPtr pScreen = pDst->drawable.pScreen;
-    KdScreenPriv(pScreen);
-    KdScreenInfo *screen = pScreenPriv->screen;
-    EphyrScrPriv *scrpriv = screen->driver;
-    EphyrFakexaPriv *fakexa = scrpriv->fakexa;
-
-    fbCopyArea(&fakexa->pSrc->drawable, &fakexa->pDst->drawable, fakexa->pGC,
-	       srcX, srcY, w, h, dstX, dstY);
-}
-
-/**
- * Cleans up the scratch GC created in ephyrPrepareCopy.
- */
-static void
-ephyrDoneCopy(PixmapPtr pDst)
-{
-    ScreenPtr pScreen = pDst->drawable.pScreen;
-    KdScreenPriv(pScreen);
-    KdScreenInfo *screen = pScreenPriv->screen;
-    EphyrScrPriv *scrpriv = screen->driver;
-    EphyrFakexaPriv *fakexa = scrpriv->fakexa;
-
-    FreeScratchGC (fakexa->pGC);
-
-    ephyrFinishPipelinedAccess(fakexa->pSrc, EXA_PREPARE_SRC);
-    ephyrFinishPipelinedAccess(fakexa->pDst, EXA_PREPARE_DEST);
-}
-
-/**
- * Reports that we can always accelerate the given operation.  This may not be
- * desirable from an EXA testing standpoint -- testing the fallback paths would
- * be useful, too.
- */
-static Bool
-ephyrCheckComposite(int op, PicturePtr pSrcPicture, PicturePtr pMaskPicture,
-		    PicturePtr pDstPicture)
-{
-    /* Exercise the component alpha helper, so fail on this case like a normal
-     * driver
-     */
-    if (pMaskPicture && pMaskPicture->componentAlpha && op == PictOpOver)
-	return FALSE;
-
-    return TRUE;
-}
-
-/**
- * Saves off the parameters for ephyrComposite.
- */
-static Bool
-ephyrPrepareComposite(int op, PicturePtr pSrcPicture, PicturePtr pMaskPicture,
-		      PicturePtr pDstPicture, PixmapPtr pSrc, PixmapPtr pMask,
-		      PixmapPtr pDst)
-{
-    KdScreenPriv(pDst->drawable.pScreen);
-    KdScreenInfo *screen = pScreenPriv->screen;
-    EphyrScrPriv *scrpriv = screen->driver;
-    EphyrFakexaPriv *fakexa = scrpriv->fakexa;
-
-    ephyrPreparePipelinedAccess(pDst, EXA_PREPARE_DEST);
-    ephyrPreparePipelinedAccess(pSrc, EXA_PREPARE_SRC);
-    if (pMask != NULL)
-	ephyrPreparePipelinedAccess(pMask, EXA_PREPARE_MASK);
-
-    fakexa->op = op;
-    fakexa->pSrcPicture = pSrcPicture;
-    fakexa->pMaskPicture = pMaskPicture;
-    fakexa->pDstPicture = pDstPicture;
-    fakexa->pSrc = pSrc;
-    fakexa->pMask = pMask;
-    fakexa->pDst = pDst;
-
-    TRACE_DRAW();
-
-    return TRUE;
-}
-
-/**
- * Does an fbComposite to complete the requested drawing operation.
- */
-static void
-ephyrComposite(PixmapPtr pDst, int srcX, int srcY, int maskX, int maskY,
-	       int dstX, int dstY, int w, int h)
-{
-    KdScreenPriv(pDst->drawable.pScreen);
-    KdScreenInfo *screen = pScreenPriv->screen;
-    EphyrScrPriv *scrpriv = screen->driver;
-    EphyrFakexaPriv *fakexa = scrpriv->fakexa;
-
-    fbComposite(fakexa->op, fakexa->pSrcPicture, fakexa->pMaskPicture,
-		fakexa->pDstPicture, srcX, srcY, maskX, maskY, dstX, dstY,
-		w, h);
-}
-
-static void
-ephyrDoneComposite(PixmapPtr pDst)
-{
-    KdScreenPriv(pDst->drawable.pScreen);
-    KdScreenInfo *screen = pScreenPriv->screen;
-    EphyrScrPriv *scrpriv = screen->driver;
-    EphyrFakexaPriv *fakexa = scrpriv->fakexa;
-
-    if (fakexa->pMask != NULL)
-	ephyrFinishPipelinedAccess(fakexa->pMask, EXA_PREPARE_MASK);
-    ephyrFinishPipelinedAccess(fakexa->pSrc, EXA_PREPARE_SRC);
-    ephyrFinishPipelinedAccess(fakexa->pDst, EXA_PREPARE_DEST);
-}
-
-/**
- * Does fake acceleration of DownloadFromScren using memcpy.
- */
-static Bool
-ephyrDownloadFromScreen(PixmapPtr pSrc, int x, int y, int w, int h, char *dst,
-			int dst_pitch)
-{
-    KdScreenPriv(pSrc->drawable.pScreen);
-    KdScreenInfo *screen = pScreenPriv->screen;
-    EphyrScrPriv *scrpriv = screen->driver;
-    EphyrFakexaPriv *fakexa = scrpriv->fakexa;
-    unsigned char *src;
-    int src_pitch, cpp;
-
-    if (pSrc->drawable.bitsPerPixel < 8)
-	return FALSE;
-
-    ephyrPreparePipelinedAccess(pSrc, EXA_PREPARE_SRC);
-
-    cpp = pSrc->drawable.bitsPerPixel / 8;
-    src_pitch = exaGetPixmapPitch(pSrc);
-    src = fakexa->exa->memoryBase + exaGetPixmapOffset(pSrc);
-    src += y * src_pitch + x * cpp;
-
-    for (; h > 0; h--) {
-	memcpy(dst, src, w * cpp);
-	dst += dst_pitch;
-	src += src_pitch;
-    }
-
-    exaMarkSync(pSrc->drawable.pScreen);
-
-    ephyrFinishPipelinedAccess(pSrc, EXA_PREPARE_SRC);
-
-    return TRUE;
-}
-
-/**
- * Does fake acceleration of UploadToScreen using memcpy.
- */
-static Bool
-ephyrUploadToScreen(PixmapPtr pDst, int x, int y, int w, int h, char *src,
-		    int src_pitch)
-{
-    KdScreenPriv(pDst->drawable.pScreen);
-    KdScreenInfo *screen = pScreenPriv->screen;
-    EphyrScrPriv *scrpriv = screen->driver;
-    EphyrFakexaPriv *fakexa = scrpriv->fakexa;
-    unsigned char *dst;
-    int dst_pitch, cpp;
-
-    if (pDst->drawable.bitsPerPixel < 8)
-	return FALSE;
-
-    ephyrPreparePipelinedAccess(pDst, EXA_PREPARE_DEST);
-
-    cpp = pDst->drawable.bitsPerPixel / 8;
-    dst_pitch = exaGetPixmapPitch(pDst);
-    dst = fakexa->exa->memoryBase + exaGetPixmapOffset(pDst);
-    dst += y * dst_pitch + x * cpp;
-
-    for (; h > 0; h--) {
-	memcpy(dst, src, w * cpp);
-	dst += dst_pitch;
-	src += src_pitch;
-    }
-
-    exaMarkSync(pDst->drawable.pScreen);
-
-    ephyrFinishPipelinedAccess(pDst, EXA_PREPARE_DEST);
-
-    return TRUE;
-}
-
-static Bool
-ephyrPrepareAccess(PixmapPtr pPix, int index)
-{
-    /* Make sure we don't somehow end up with a pointer that is in framebuffer
-     * and hasn't been readied for us.
-     */
-    assert(pPix->devPrivate.ptr != NULL);
-
-    return TRUE;
-}
-
-/**
- * In fakexa, we currently only track whether we have synced to the latest
- * "accelerated" drawing that has happened or not.  It's not used for anything
- * yet.
- */
-static int
-ephyrMarkSync(ScreenPtr pScreen)
-{
-    KdScreenPriv(pScreen);
-    KdScreenInfo *screen = pScreenPriv->screen;
-    EphyrScrPriv *scrpriv = screen->driver;
-    EphyrFakexaPriv *fakexa = scrpriv->fakexa;
-
-    fakexa->is_synced = FALSE;
-
-    return 0;
-}
-
-/**
- * Assumes that we're waiting on the latest marker.  When EXA gets smarter and
- * starts using markers in a fine-grained way (for example, waiting on drawing
- * to required pixmaps to complete, rather than waiting for all drawing to
- * complete), we'll want to make the ephyrMarkSync/ephyrWaitMarker
- * implementation fine-grained as well.
- */
-static void
-ephyrWaitMarker(ScreenPtr pScreen, int marker)
-{
-    KdScreenPriv(pScreen);
-    KdScreenInfo *screen = pScreenPriv->screen;
-    EphyrScrPriv *scrpriv = screen->driver;
-    EphyrFakexaPriv *fakexa = scrpriv->fakexa;
-
-    fakexa->is_synced = TRUE;
-}
-
-/**
- * This function initializes EXA to use the fake acceleration implementation
- * which just falls through to software.  The purpose is to have a reliable,
- * correct driver with which to test changes to the EXA core.
- */
-Bool
-ephyrDrawInit(ScreenPtr pScreen)
-{
-    KdScreenPriv(pScreen);
-    KdScreenInfo *screen = pScreenPriv->screen;
-    EphyrScrPriv *scrpriv = screen->driver;
-    EphyrPriv *priv = screen->card->driver;
-    EphyrFakexaPriv *fakexa;
-    Bool success;
-
-    fakexa = xcalloc(1, sizeof(*fakexa));
-    if (fakexa == NULL)
-	return FALSE;
-
-    fakexa->exa = exaDriverAlloc();
-    if (fakexa->exa == NULL) {
-	xfree(fakexa);
-	return FALSE;
-    }
-
-    fakexa->exa->memoryBase = (CARD8 *) (priv->base);
-    fakexa->exa->memorySize = priv->bytes_per_line * ephyrBufferHeight(screen);
-    fakexa->exa->offScreenBase = priv->bytes_per_line * screen->height;
-
-    /* Since we statically link against EXA, we shouldn't have to be smart about
-     * versioning.
-     */
-    fakexa->exa->exa_major = 2;
-    fakexa->exa->exa_minor = 0;
-
-    fakexa->exa->PrepareSolid = ephyrPrepareSolid;
-    fakexa->exa->Solid = ephyrSolid;
-    fakexa->exa->DoneSolid = ephyrDoneSolid;
-
-    fakexa->exa->PrepareCopy = ephyrPrepareCopy;
-    fakexa->exa->Copy = ephyrCopy;
-    fakexa->exa->DoneCopy = ephyrDoneCopy;
-
-    fakexa->exa->CheckComposite = ephyrCheckComposite;
-    fakexa->exa->PrepareComposite = ephyrPrepareComposite;
-    fakexa->exa->Composite = ephyrComposite;
-    fakexa->exa->DoneComposite = ephyrDoneComposite;
-
-    fakexa->exa->DownloadFromScreen = ephyrDownloadFromScreen;
-    fakexa->exa->UploadToScreen = ephyrUploadToScreen;
-
-    fakexa->exa->MarkSync = ephyrMarkSync;
-    fakexa->exa->WaitMarker = ephyrWaitMarker;
-
-    fakexa->exa->PrepareAccess = ephyrPrepareAccess;
-
-    fakexa->exa->pixmapOffsetAlign = EPHYR_OFFSET_ALIGN;
-    fakexa->exa->pixmapPitchAlign = EPHYR_PITCH_ALIGN;
-
-    fakexa->exa->maxX = 1023;
-    fakexa->exa->maxY = 1023;
-
-    fakexa->exa->flags = EXA_OFFSCREEN_PIXMAPS;
-
-    success = exaDriverInit(pScreen, fakexa->exa);
-    if (success) {
-	ErrorF("Initialized fake EXA acceleration\n");
-	scrpriv->fakexa = fakexa;
-    } else {
-	ErrorF("Failed to initialize EXA\n");
-	xfree(fakexa->exa);
-	xfree(fakexa);
-    }
-
-    return success;
-}
-
-void
-ephyrDrawEnable(ScreenPtr pScreen)
-{
-}
-
-void
-ephyrDrawDisable(ScreenPtr pScreen)
-{
-}
-
-void
-ephyrDrawFini(ScreenPtr pScreen)
-{
-}
-
-/**
- * exaDDXDriverInit is required by the top-level EXA module, and is used by
- * the xorg DDX to hook in its EnableDisableFB wrapper.  We don't need it, since
- * we won't be enabling/disabling the FB.
- */
-void
-exaDDXDriverInit(ScreenPtr pScreen)
-{
-    ExaScreenPriv(pScreen);
-
-    pExaScr->migration = ExaMigrationSmart;
-    pExaScr->checkDirtyCorrectness = TRUE;
-}
+/*

+ * Copyright © 2006 Intel Corporation

+ *

+ * 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.

+ *

+ * Authors:

+ *    Eric Anholt <eric@anholt.net>

+ *

+ */

+

+#ifdef HAVE_CONFIG_H

+#include <kdrive-config.h>

+#endif

+

+#include "ephyr.h"

+#include "exa_priv.h"

+#include "fbpict.h"

+

+#define EPHYR_TRACE_DRAW 0

+

+#if EPHYR_TRACE_DRAW

+#define TRACE_DRAW() ErrorF("%s\n", __FUNCTION__);

+#else

+#define TRACE_DRAW() do { } while (0)

+#endif

+

+/* Use some oddball alignments, to expose issues in alignment handling in EXA. */

+#define EPHYR_OFFSET_ALIGN	24

+#define EPHYR_PITCH_ALIGN	24

+

+#define EPHYR_OFFSCREEN_SIZE	(16 * 1024 * 1024)

+#define EPHYR_OFFSCREEN_BASE	(1 * 1024 * 1024)

+

+/**

+ * Forces a real devPrivate.ptr for hidden pixmaps, so that we can call down to

+ * fb functions.

+ */

+static void

+ephyrPreparePipelinedAccess(PixmapPtr pPix, int index)

+{

+    KdScreenPriv(pPix->drawable.pScreen);

+    KdScreenInfo *screen = pScreenPriv->screen;

+    EphyrScrPriv *scrpriv = screen->driver;

+    EphyrFakexaPriv *fakexa = scrpriv->fakexa;

+

+    assert(fakexa->saved_ptrs[index] == NULL);

+    fakexa->saved_ptrs[index] = pPix->devPrivate.ptr;

+

+    if (pPix->devPrivate.ptr != NULL)

+	return;

+

+    pPix->devPrivate.ptr = fakexa->exa->memoryBase + exaGetPixmapOffset(pPix);

+}

+

+/**

+ * Restores the original devPrivate.ptr of the pixmap from before we messed with

+ * it.

+ */

+static void

+ephyrFinishPipelinedAccess(PixmapPtr pPix, int index)

+{

+    KdScreenPriv(pPix->drawable.pScreen);

+    KdScreenInfo *screen = pScreenPriv->screen;

+    EphyrScrPriv *scrpriv = screen->driver;

+    EphyrFakexaPriv *fakexa = scrpriv->fakexa;

+

+    pPix->devPrivate.ptr = fakexa->saved_ptrs[index];

+    fakexa->saved_ptrs[index] = NULL;

+}

+

+/**

+ * Sets up a scratch GC for fbFill, and saves other parameters for the

+ * ephyrSolid implementation.

+ */

+static Bool

+ephyrPrepareSolid(PixmapPtr pPix, int alu, Pixel pm, Pixel fg)

+{

+    ScreenPtr pScreen = pPix->drawable.pScreen;

+    KdScreenPriv(pScreen);

+    KdScreenInfo *screen = pScreenPriv->screen;

+    EphyrScrPriv *scrpriv = screen->driver;

+    EphyrFakexaPriv *fakexa = scrpriv->fakexa;

+    ChangeGCVal tmpval[3];

+

+    ephyrPreparePipelinedAccess(pPix, EXA_PREPARE_DEST);

+

+    fakexa->pDst = pPix;

+    fakexa->pGC = GetScratchGC(pPix->drawable.depth, pScreen);

+

+    tmpval[0].val = alu;

+    tmpval[1].val = pm;

+    tmpval[2].val = fg;

+    ChangeGC(NullClient, fakexa->pGC, GCFunction | GCPlaneMask | GCForeground, tmpval);

+

+    ValidateGC(&pPix->drawable, fakexa->pGC);

+

+    TRACE_DRAW();

+

+    return TRUE;

+}

+

+/**

+ * Does an fbFill of the rectangle to be drawn.

+ */

+static void

+ephyrSolid(PixmapPtr pPix, int x1, int y1, int x2, int y2)

+{

+    ScreenPtr pScreen = pPix->drawable.pScreen;

+    KdScreenPriv(pScreen);

+    KdScreenInfo *screen = pScreenPriv->screen;

+    EphyrScrPriv *scrpriv = screen->driver;

+    EphyrFakexaPriv *fakexa = scrpriv->fakexa;

+

+    fbFill(&fakexa->pDst->drawable, fakexa->pGC, x1, y1, x2 - x1, y2 - y1);

+}

+

+/**

+ * Cleans up the scratch GC created in ephyrPrepareSolid.

+ */

+static void

+ephyrDoneSolid(PixmapPtr pPix)

+{

+    ScreenPtr pScreen = pPix->drawable.pScreen;

+    KdScreenPriv(pScreen);

+    KdScreenInfo *screen = pScreenPriv->screen;

+    EphyrScrPriv *scrpriv = screen->driver;

+    EphyrFakexaPriv *fakexa = scrpriv->fakexa;

+

+    FreeScratchGC(fakexa->pGC);

+

+    ephyrFinishPipelinedAccess(pPix, EXA_PREPARE_DEST);

+}

+

+/**

+ * Sets up a scratch GC for fbCopyArea, and saves other parameters for the

+ * ephyrCopy implementation.

+ */

+static Bool

+ephyrPrepareCopy(PixmapPtr pSrc, PixmapPtr pDst, int dx, int dy, int alu,

+		 Pixel pm)

+{

+    ScreenPtr pScreen = pDst->drawable.pScreen;

+    KdScreenPriv(pScreen);

+    KdScreenInfo *screen = pScreenPriv->screen;

+    EphyrScrPriv *scrpriv = screen->driver;

+    EphyrFakexaPriv *fakexa = scrpriv->fakexa;

+    ChangeGCVal tmpval[2];

+

+    ephyrPreparePipelinedAccess(pDst, EXA_PREPARE_DEST);

+    ephyrPreparePipelinedAccess(pSrc, EXA_PREPARE_SRC);

+

+    fakexa->pSrc = pSrc;

+    fakexa->pDst = pDst;

+    fakexa->pGC = GetScratchGC(pDst->drawable.depth, pScreen);

+

+    tmpval[0].val = alu;

+    tmpval[1].val = pm;

+    ChangeGC (NullClient, fakexa->pGC, GCFunction | GCPlaneMask, tmpval);

+

+    ValidateGC(&pDst->drawable, fakexa->pGC);

+

+    TRACE_DRAW();

+

+    return TRUE;

+}

+

+/**

+ * Does an fbCopyArea to take care of the requested copy.

+ */

+static void

+ephyrCopy(PixmapPtr pDst, int srcX, int srcY, int dstX, int dstY, int w, int h)

+{

+    ScreenPtr pScreen = pDst->drawable.pScreen;

+    KdScreenPriv(pScreen);

+    KdScreenInfo *screen = pScreenPriv->screen;

+    EphyrScrPriv *scrpriv = screen->driver;

+    EphyrFakexaPriv *fakexa = scrpriv->fakexa;

+

+    fbCopyArea(&fakexa->pSrc->drawable, &fakexa->pDst->drawable, fakexa->pGC,

+	       srcX, srcY, w, h, dstX, dstY);

+}

+

+/**

+ * Cleans up the scratch GC created in ephyrPrepareCopy.

+ */

+static void

+ephyrDoneCopy(PixmapPtr pDst)

+{

+    ScreenPtr pScreen = pDst->drawable.pScreen;

+    KdScreenPriv(pScreen);

+    KdScreenInfo *screen = pScreenPriv->screen;

+    EphyrScrPriv *scrpriv = screen->driver;

+    EphyrFakexaPriv *fakexa = scrpriv->fakexa;

+

+    FreeScratchGC (fakexa->pGC);

+

+    ephyrFinishPipelinedAccess(fakexa->pSrc, EXA_PREPARE_SRC);

+    ephyrFinishPipelinedAccess(fakexa->pDst, EXA_PREPARE_DEST);

+}

+

+/**

+ * Reports that we can always accelerate the given operation.  This may not be

+ * desirable from an EXA testing standpoint -- testing the fallback paths would

+ * be useful, too.

+ */

+static Bool

+ephyrCheckComposite(int op, PicturePtr pSrcPicture, PicturePtr pMaskPicture,

+		    PicturePtr pDstPicture)

+{

+    /* Exercise the component alpha helper, so fail on this case like a normal

+     * driver

+     */

+    if (pMaskPicture && pMaskPicture->componentAlpha && op == PictOpOver)

+	return FALSE;

+

+    return TRUE;

+}

+

+/**

+ * Saves off the parameters for ephyrComposite.

+ */

+static Bool

+ephyrPrepareComposite(int op, PicturePtr pSrcPicture, PicturePtr pMaskPicture,

+		      PicturePtr pDstPicture, PixmapPtr pSrc, PixmapPtr pMask,

+		      PixmapPtr pDst)

+{

+    KdScreenPriv(pDst->drawable.pScreen);

+    KdScreenInfo *screen = pScreenPriv->screen;

+    EphyrScrPriv *scrpriv = screen->driver;

+    EphyrFakexaPriv *fakexa = scrpriv->fakexa;

+

+    ephyrPreparePipelinedAccess(pDst, EXA_PREPARE_DEST);

+    ephyrPreparePipelinedAccess(pSrc, EXA_PREPARE_SRC);

+    if (pMask != NULL)

+	ephyrPreparePipelinedAccess(pMask, EXA_PREPARE_MASK);

+

+    fakexa->op = op;

+    fakexa->pSrcPicture = pSrcPicture;

+    fakexa->pMaskPicture = pMaskPicture;

+    fakexa->pDstPicture = pDstPicture;

+    fakexa->pSrc = pSrc;

+    fakexa->pMask = pMask;

+    fakexa->pDst = pDst;

+

+    TRACE_DRAW();

+

+    return TRUE;

+}

+

+/**

+ * Does an fbComposite to complete the requested drawing operation.

+ */

+static void

+ephyrComposite(PixmapPtr pDst, int srcX, int srcY, int maskX, int maskY,

+	       int dstX, int dstY, int w, int h)

+{

+    KdScreenPriv(pDst->drawable.pScreen);

+    KdScreenInfo *screen = pScreenPriv->screen;

+    EphyrScrPriv *scrpriv = screen->driver;

+    EphyrFakexaPriv *fakexa = scrpriv->fakexa;

+

+    fbComposite(fakexa->op, fakexa->pSrcPicture, fakexa->pMaskPicture,

+		fakexa->pDstPicture, srcX, srcY, maskX, maskY, dstX, dstY,

+		w, h);

+}

+

+static void

+ephyrDoneComposite(PixmapPtr pDst)

+{

+    KdScreenPriv(pDst->drawable.pScreen);

+    KdScreenInfo *screen = pScreenPriv->screen;

+    EphyrScrPriv *scrpriv = screen->driver;

+    EphyrFakexaPriv *fakexa = scrpriv->fakexa;

+

+    if (fakexa->pMask != NULL)

+	ephyrFinishPipelinedAccess(fakexa->pMask, EXA_PREPARE_MASK);

+    ephyrFinishPipelinedAccess(fakexa->pSrc, EXA_PREPARE_SRC);

+    ephyrFinishPipelinedAccess(fakexa->pDst, EXA_PREPARE_DEST);

+}

+

+/**

+ * Does fake acceleration of DownloadFromScren using memcpy.

+ */

+static Bool

+ephyrDownloadFromScreen(PixmapPtr pSrc, int x, int y, int w, int h, char *dst,

+			int dst_pitch)

+{

+    KdScreenPriv(pSrc->drawable.pScreen);

+    KdScreenInfo *screen = pScreenPriv->screen;

+    EphyrScrPriv *scrpriv = screen->driver;

+    EphyrFakexaPriv *fakexa = scrpriv->fakexa;

+    unsigned char *src;

+    int src_pitch, cpp;

+

+    if (pSrc->drawable.bitsPerPixel < 8)

+	return FALSE;

+

+    ephyrPreparePipelinedAccess(pSrc, EXA_PREPARE_SRC);

+

+    cpp = pSrc->drawable.bitsPerPixel / 8;

+    src_pitch = exaGetPixmapPitch(pSrc);

+    src = fakexa->exa->memoryBase + exaGetPixmapOffset(pSrc);

+    src += y * src_pitch + x * cpp;

+

+    for (; h > 0; h--) {

+	memcpy(dst, src, w * cpp);

+	dst += dst_pitch;

+	src += src_pitch;

+    }

+

+    exaMarkSync(pSrc->drawable.pScreen);

+

+    ephyrFinishPipelinedAccess(pSrc, EXA_PREPARE_SRC);

+

+    return TRUE;

+}

+

+/**

+ * Does fake acceleration of UploadToScreen using memcpy.

+ */

+static Bool

+ephyrUploadToScreen(PixmapPtr pDst, int x, int y, int w, int h, char *src,

+		    int src_pitch)

+{

+    KdScreenPriv(pDst->drawable.pScreen);

+    KdScreenInfo *screen = pScreenPriv->screen;

+    EphyrScrPriv *scrpriv = screen->driver;

+    EphyrFakexaPriv *fakexa = scrpriv->fakexa;

+    unsigned char *dst;

+    int dst_pitch, cpp;

+

+    if (pDst->drawable.bitsPerPixel < 8)

+	return FALSE;

+

+    ephyrPreparePipelinedAccess(pDst, EXA_PREPARE_DEST);

+

+    cpp = pDst->drawable.bitsPerPixel / 8;

+    dst_pitch = exaGetPixmapPitch(pDst);

+    dst = fakexa->exa->memoryBase + exaGetPixmapOffset(pDst);

+    dst += y * dst_pitch + x * cpp;

+

+    for (; h > 0; h--) {

+	memcpy(dst, src, w * cpp);

+	dst += dst_pitch;

+	src += src_pitch;

+    }

+

+    exaMarkSync(pDst->drawable.pScreen);

+

+    ephyrFinishPipelinedAccess(pDst, EXA_PREPARE_DEST);

+

+    return TRUE;

+}

+

+static Bool

+ephyrPrepareAccess(PixmapPtr pPix, int index)

+{

+    /* Make sure we don't somehow end up with a pointer that is in framebuffer

+     * and hasn't been readied for us.

+     */

+    assert(pPix->devPrivate.ptr != NULL);

+

+    return TRUE;

+}

+

+/**

+ * In fakexa, we currently only track whether we have synced to the latest

+ * "accelerated" drawing that has happened or not.  It's not used for anything

+ * yet.

+ */

+static int

+ephyrMarkSync(ScreenPtr pScreen)

+{

+    KdScreenPriv(pScreen);

+    KdScreenInfo *screen = pScreenPriv->screen;

+    EphyrScrPriv *scrpriv = screen->driver;

+    EphyrFakexaPriv *fakexa = scrpriv->fakexa;

+

+    fakexa->is_synced = FALSE;

+

+    return 0;

+}

+

+/**

+ * Assumes that we're waiting on the latest marker.  When EXA gets smarter and

+ * starts using markers in a fine-grained way (for example, waiting on drawing

+ * to required pixmaps to complete, rather than waiting for all drawing to

+ * complete), we'll want to make the ephyrMarkSync/ephyrWaitMarker

+ * implementation fine-grained as well.

+ */

+static void

+ephyrWaitMarker(ScreenPtr pScreen, int marker)

+{

+    KdScreenPriv(pScreen);

+    KdScreenInfo *screen = pScreenPriv->screen;

+    EphyrScrPriv *scrpriv = screen->driver;

+    EphyrFakexaPriv *fakexa = scrpriv->fakexa;

+

+    fakexa->is_synced = TRUE;

+}

+

+/**

+ * This function initializes EXA to use the fake acceleration implementation

+ * which just falls through to software.  The purpose is to have a reliable,

+ * correct driver with which to test changes to the EXA core.

+ */

+Bool

+ephyrDrawInit(ScreenPtr pScreen)

+{

+    KdScreenPriv(pScreen);

+    KdScreenInfo *screen = pScreenPriv->screen;

+    EphyrScrPriv *scrpriv = screen->driver;

+    EphyrPriv *priv = screen->card->driver;

+    EphyrFakexaPriv *fakexa;

+    Bool success;

+

+    fakexa = calloc(1, sizeof(*fakexa));

+    if (fakexa == NULL)

+	return FALSE;

+

+    fakexa->exa = exaDriverAlloc();

+    if (fakexa->exa == NULL) {

+	free(fakexa);

+	return FALSE;

+    }

+

+    fakexa->exa->memoryBase = (CARD8 *) (priv->base);

+    fakexa->exa->memorySize = priv->bytes_per_line * ephyrBufferHeight(screen);

+    fakexa->exa->offScreenBase = priv->bytes_per_line * screen->height;

+

+    /* Since we statically link against EXA, we shouldn't have to be smart about

+     * versioning.

+     */

+    fakexa->exa->exa_major = 2;

+    fakexa->exa->exa_minor = 0;

+

+    fakexa->exa->PrepareSolid = ephyrPrepareSolid;

+    fakexa->exa->Solid = ephyrSolid;

+    fakexa->exa->DoneSolid = ephyrDoneSolid;

+

+    fakexa->exa->PrepareCopy = ephyrPrepareCopy;

+    fakexa->exa->Copy = ephyrCopy;

+    fakexa->exa->DoneCopy = ephyrDoneCopy;

+

+    fakexa->exa->CheckComposite = ephyrCheckComposite;

+    fakexa->exa->PrepareComposite = ephyrPrepareComposite;

+    fakexa->exa->Composite = ephyrComposite;

+    fakexa->exa->DoneComposite = ephyrDoneComposite;

+

+    fakexa->exa->DownloadFromScreen = ephyrDownloadFromScreen;

+    fakexa->exa->UploadToScreen = ephyrUploadToScreen;

+

+    fakexa->exa->MarkSync = ephyrMarkSync;

+    fakexa->exa->WaitMarker = ephyrWaitMarker;

+

+    fakexa->exa->PrepareAccess = ephyrPrepareAccess;

+

+    fakexa->exa->pixmapOffsetAlign = EPHYR_OFFSET_ALIGN;

+    fakexa->exa->pixmapPitchAlign = EPHYR_PITCH_ALIGN;

+

+    fakexa->exa->maxX = 1023;

+    fakexa->exa->maxY = 1023;

+

+    fakexa->exa->flags = EXA_OFFSCREEN_PIXMAPS;

+

+    success = exaDriverInit(pScreen, fakexa->exa);

+    if (success) {

+	ErrorF("Initialized fake EXA acceleration\n");

+	scrpriv->fakexa = fakexa;

+    } else {

+	ErrorF("Failed to initialize EXA\n");

+	free(fakexa->exa);

+	free(fakexa);

+    }

+

+    return success;

+}

+

+void

+ephyrDrawEnable(ScreenPtr pScreen)

+{

+}

+

+void

+ephyrDrawDisable(ScreenPtr pScreen)

+{

+}

+

+void

+ephyrDrawFini(ScreenPtr pScreen)

+{

+}

+

+/**

+ * exaDDXDriverInit is required by the top-level EXA module, and is used by

+ * the xorg DDX to hook in its EnableDisableFB wrapper.  We don't need it, since

+ * we won't be enabling/disabling the FB.

+ */

+void

+exaDDXDriverInit(ScreenPtr pScreen)

+{

+    ExaScreenPriv(pScreen);

+

+    pExaScr->migration = ExaMigrationSmart;

+    pExaScr->checkDirtyCorrectness = TRUE;

+}