1 files changed, 146 insertions, 0 deletions
diff --git a/src/atiaccel.c b/src/atiaccel.c
new file mode 100644
index 0000000..050019d
--- /dev/null
+++ b/src/atiaccel.c
@@ -0,0 +1,146 @@
+/* $XFree86: xc/programs/Xserver/hw/xfree86/drivers/ati/atiaccel.c,v 1.13 2003/04/24 21:19:22 tsi Exp $ */
+/*
+ * Copyright 2001 through 2004 by Marc Aurele La France (TSI @ UQV), tsi@xfree86.org
+ *
+ * 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 Marc Aurele La France not be used in advertising or
+ * publicity pertaining to distribution of the software without specific,
+ * written prior permission.  Marc Aurele La France makes no representations
+ * about the suitability of this software for any purpose.  It is provided
+ * "as-is" without express or implied warranty.
+ *
+ * MARC AURELE LA FRANCE DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
+ * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.  IN NO
+ * EVENT SHALL MARC AURELE LA FRANCE 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.
+ *
+ * DRI support by:
+ *    Leif Delgass <ldelgass@retinalburn.net>
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "atiaccel.h"
+#include "atiadapter.h"
+#include "atimach64accel.h"
+#include "atistruct.h"
+
+/*
+ * ATIInitializeAcceleration --
+ *
+ * This function is called to initialise both the framebuffer manager and XAA
+ * on a screen.
+ */
+Bool
+ATIInitializeAcceleration
+(
+    ScreenPtr   pScreen,
+    ScrnInfoPtr pScreenInfo,
+    ATIPtr      pATI
+)
+{
+    int maxScanlines = 32767, maxPixelArea, PixelArea;
+
+    if (pATI->OptionAccel)
+    {
+        if (!(pATI->pXAAInfo = XAACreateInfoRec()))
+            return FALSE;
+
+        switch (pATI->Adapter)
+        {
+            case ATI_ADAPTER_MACH64:
+                maxScanlines = ATIMach64AccelInit(pATI, pATI->pXAAInfo);
+                break;
+
+            default:
+                break;
+        }
+    }
+
+#ifndef AVOID_CPIO
+
+    if (!pATI->BankInfo.BankSize)
+
+#endif /* AVOID_CPIO */
+
+#ifdef XF86DRI_DEVEL
+
+        /* If DRI is enabled, we've already set up the FB manager in ATIScreenInit */
+        if (!pATI->directRenderingEnabled)
+
+#endif /* XF86DRI */
+    {
+        /*
+         * Note:  If PixelArea exceeds the engine's maximum, the excess is
+         *        never used, even though it would be useful for such things
+         *        as XVideo buffers.
+         */
+        maxPixelArea = maxScanlines * pScreenInfo->displayWidth;
+        PixelArea = pScreenInfo->videoRam * 1024 * 8 / pATI->bitsPerPixel;
+        if (PixelArea > maxPixelArea)
+            PixelArea = maxPixelArea;
+        xf86InitFBManagerArea(pScreen, PixelArea, 2);
+    }
+
+    if (!pATI->OptionAccel || XAAInit(pScreen, pATI->pXAAInfo))
+        return TRUE;
+
+    XAADestroyInfoRec(pATI->pXAAInfo);
+    pATI->pXAAInfo = NULL;
+    return FALSE;
+}
+
+FBLinearPtr
+ATIResizeOffscreenLinear
+(
+    ScreenPtr   pScreen,
+    FBLinearPtr pLinear,
+    int         Size
+)
+{
+    if (Size <= 0)
+    {
+        xf86FreeOffscreenLinear(pLinear);
+        return NULL;
+    }
+
+    if (pLinear)
+    {
+        if ((pLinear->size >= Size) ||
+            xf86ResizeOffscreenLinear(pLinear, Size))
+        {
+            pLinear->MoveLinearCallback = NULL;
+            pLinear->RemoveLinearCallback = NULL;
+            return pLinear;
+        }
+
+        xf86FreeOffscreenLinear(pLinear);
+    }
+
+    pLinear = xf86AllocateOffscreenLinear(pScreen, Size, 16, NULL, NULL, NULL);
+
+    if (!pLinear)
+    {
+        int maxSize;
+
+        xf86QueryLargestOffscreenLinear(pScreen, &maxSize, 16,
+            PRIORITY_EXTREME);
+
+        if (maxSize < Size)
+            return NULL;
+
+        xf86PurgeUnlockedOffscreenAreas(pScreen);
+        pLinear =
+            xf86AllocateOffscreenLinear(pScreen, Size, 16, NULL, NULL, NULL);
+    }
+
+    return pLinear;
+}