From 4a3dbb926ae3f5410198d7cc4f4ebe4f62eebf05 Mon Sep 17 00:00:00 2001 From: marha Date: Sat, 25 Jul 2009 19:39:46 +0000 Subject: Added xorg-server-1.6.2.tar.gz --- xorg-server/hw/kdrive/src/koffscreen.c | 375 --------------------------------- 1 file changed, 375 deletions(-) delete mode 100644 xorg-server/hw/kdrive/src/koffscreen.c (limited to 'xorg-server/hw/kdrive/src/koffscreen.c') diff --git a/xorg-server/hw/kdrive/src/koffscreen.c b/xorg-server/hw/kdrive/src/koffscreen.c deleted file mode 100644 index efe03642f..000000000 --- a/xorg-server/hw/kdrive/src/koffscreen.c +++ /dev/null @@ -1,375 +0,0 @@ -/* - * Copyright © 2003 Anders Carlsson - * - * 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 Anders Carlsson not be used in - * advertising or publicity pertaining to distribution of the software without - * specific, written prior permission. Anders Carlsson makes no - * representations about the suitability of this software for any purpose. It - * is provided "as is" without express or implied warranty. - * - * ANDERS CARLSSON DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, - * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO - * EVENT SHALL ANDERS CARLSSON 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_CONFIG_H -#include -#endif -#include "kdrive.h" -#include "kaa.h" - -#define DEBUG_OFFSCREEN 0 -#if DEBUG_OFFSCREEN -#define DBG_OFFSCREEN(a) ErrorF a -#else -#define DBG_OFFSCREEN(a) -#endif - -#if DEBUG_OFFSCREEN -static void -KdOffscreenValidate (ScreenPtr pScreen) -{ - KdScreenPriv (pScreen); - KdOffscreenArea *prev = 0, *area; - - assert (pScreenPriv->screen->off_screen_areas->area.offset == 0); - for (area = pScreenPriv->off_screen_areas; area; area = area->next) - { - if (prev) - assert (prev->offset + prev->size == area->offset); - - prev = area; - } - assert (prev->offset + prev->size == pScreenPriv->screen->memory_size); -} -#else -#define KdOffscreenValidate(s) -#endif - -static KdOffscreenArea * -KdOffscreenKickOut (ScreenPtr pScreen, KdOffscreenArea *area) -{ - if (area->save) - (*area->save) (pScreen, area); - return KdOffscreenFree (pScreen, area); -} - -KdOffscreenArea * -KdOffscreenAlloc (ScreenPtr pScreen, int size, int align, - Bool locked, - KdOffscreenSaveProc save, - pointer privData) -{ - KdOffscreenArea *area, *begin, *best; - KdScreenPriv (pScreen); - int tmp, real_size = 0, best_score; - - KdOffscreenValidate (pScreen); - if (!align) - align = 1; - - if (!size) - { - DBG_OFFSCREEN (("Alloc 0x%x -> EMPTY\n", size)); - return NULL; - } - - /* throw out requests that cannot fit */ - if (size > (pScreenPriv->screen->memory_size - pScreenPriv->screen->off_screen_base)) - { - DBG_OFFSCREEN (("Alloc 0x%x -> TOBIG\n", size)); - return NULL; - } - - /* Try to find a free space that'll fit. */ - for (area = pScreenPriv->off_screen_areas; area; area = area->next) - { - /* skip allocated areas */ - if (area->state != KdOffscreenAvail) - continue; - - /* adjust size to match alignment requirement */ - real_size = size; - tmp = area->offset % align; - if (tmp) - real_size += (align - tmp); - - /* does it fit? */ - if (real_size <= area->size) - break; - } - - if (!area) - { - /* - * Kick out existing users to make space. - * - * First, locate a region which can hold the desired object. - */ - - /* prev points at the first object to boot */ - best = NULL; - best_score = MAXINT; - for (begin = pScreenPriv->off_screen_areas; begin != NULL; - begin = begin->next) - { - int avail, score; - KdOffscreenArea *scan; - - if (begin->state == KdOffscreenLocked) - continue; - - /* adjust size to match alignment requirement */ - real_size = size; - tmp = begin->offset % align; - if (tmp) - real_size += (align - tmp); - - avail = 0; - score = 0; - /* now see if we can make room here, and how "costly" it'll be. */ - for (scan = begin; scan != NULL; scan = scan->next) - { - if (scan->state == KdOffscreenLocked) { - /* Can't make room here, start after this locked area. */ - begin = scan->next; - break; - } - /* Score should only be non-zero for KdOffscreenRemovable */ - score += scan->score; - avail += scan->size; - if (avail >= real_size) - break; - } - /* Is it the best option we've found so far? */ - if (avail >= real_size && score < best_score) { - best = begin; - best_score = score; - } - } - area = best; - if (!area) - { - DBG_OFFSCREEN (("Alloc 0x%x -> NOSPACE\n", size)); - /* Could not allocate memory */ - KdOffscreenValidate (pScreen); - return NULL; - } - - /* adjust size to match alignment requirement */ - real_size = size; - tmp = begin->offset % align; - if (tmp) - real_size += (align - tmp); - - /* - * Kick out first area if in use - */ - if (area->state != KdOffscreenAvail) - area = KdOffscreenKickOut (pScreen, area); - /* - * Now get the system to merge the other needed areas together - */ - while (area->size < real_size) - { - assert (area->next && area->next->state == KdOffscreenRemovable); - (void) KdOffscreenKickOut (pScreen, area->next); - } - } - - /* save extra space in new area */ - if (real_size < area->size) - { - KdOffscreenArea *new_area = xalloc (sizeof (KdOffscreenArea)); - if (!new_area) - return NULL; - new_area->offset = area->offset + real_size; - new_area->size = area->size - real_size; - new_area->state = KdOffscreenAvail; - new_area->save = 0; - new_area->score = 0; - new_area->next = area->next; - area->next = new_area; - area->size = real_size; - } - /* - * Mark this area as in use - */ - if (locked) - area->state = KdOffscreenLocked; - else - area->state = KdOffscreenRemovable; - area->privData = privData; - area->save = save; - area->score = 0; - - area->save_offset = area->offset; - { - int tmp = area->offset % align; - if (tmp) - area->offset += (align - tmp); - } - - KdOffscreenValidate (pScreen); - - DBG_OFFSCREEN (("Alloc 0x%x -> 0x%x\n", size, area->offset)); - return area; -} - -void -KdOffscreenSwapOut (ScreenPtr pScreen) -{ - KdScreenPriv (pScreen); - - KdOffscreenValidate (pScreen); - /* loop until a single free area spans the space */ - for (;;) - { - KdOffscreenArea *area = pScreenPriv->off_screen_areas; - - if (!area) - break; - if (area->state == KdOffscreenAvail) - { - area = area->next; - if (!area) - break; - } - assert (area->state != KdOffscreenAvail); - (void) KdOffscreenKickOut (pScreen, area); - KdOffscreenValidate (pScreen); - } - KdOffscreenValidate (pScreen); - KdOffscreenFini (pScreen); -} - -void -KdOffscreenSwapIn (ScreenPtr pScreen) -{ - KdOffscreenInit (pScreen); -} - -/* merge the next free area into this one */ -static void -KdOffscreenMerge (KdOffscreenArea *area) -{ - KdOffscreenArea *next = area->next; - - /* account for space */ - area->size += next->size; - /* frob pointer */ - area->next = next->next; - xfree (next); -} - -KdOffscreenArea * -KdOffscreenFree (ScreenPtr pScreen, KdOffscreenArea *area) -{ - KdScreenPriv(pScreen); - KdOffscreenArea *next = area->next; - KdOffscreenArea *prev; - - DBG_OFFSCREEN (("Free 0x%x -> 0x%x\n", area->size, area->offset)); - KdOffscreenValidate (pScreen); - - area->state = KdOffscreenAvail; - area->save = 0; - area->offset = area->save_offset; - area->score = 0; - - /* - * Find previous area - */ - if (area == pScreenPriv->off_screen_areas) - prev = 0; - else - for (prev = pScreenPriv->off_screen_areas; prev; prev = prev->next) - if (prev->next == area) - break; - - /* link with next area if free */ - if (next && next->state == KdOffscreenAvail) - KdOffscreenMerge (area); - - /* link with prev area if free */ - if (prev && prev->state == KdOffscreenAvail) - { - area = prev; - KdOffscreenMerge (area); - } - - KdOffscreenValidate (pScreen); - return area; -} - -void -KdOffscreenMarkUsed (PixmapPtr pPixmap) -{ - KaaPixmapPriv (pPixmap); - KdScreenPriv (pPixmap->drawable.pScreen); - static int iter = 0; - - if (!pKaaPixmap->area) - return; - - /* The numbers here are arbitrary. We may want to tune these. */ - pKaaPixmap->area->score += 100; - if (++iter == 10) { - KdOffscreenArea *area; - for (area = pScreenPriv->off_screen_areas; area != NULL; - area = area->next) - { - if (area->state == KdOffscreenRemovable) - area->score = (area->score * 7) / 8; - } - } -} - -Bool -KdOffscreenInit (ScreenPtr pScreen) -{ - KdScreenPriv (pScreen); - KdOffscreenArea *area; - - /* Allocate a big free area */ - area = xalloc (sizeof (KdOffscreenArea)); - - if (!area) - return FALSE; - - area->state = KdOffscreenAvail; - area->offset = pScreenPriv->screen->off_screen_base; - area->size = pScreenPriv->screen->memory_size - area->offset; - area->save = 0; - area->next = NULL; - area->score = 0; - - /* Add it to the free areas */ - pScreenPriv->off_screen_areas = area; - - KdOffscreenValidate (pScreen); - - return TRUE; -} - -void -KdOffscreenFini (ScreenPtr pScreen) -{ - KdScreenPriv (pScreen); - KdOffscreenArea *area; - - /* just free all of the area records */ - while ((area = pScreenPriv->off_screen_areas)) - { - pScreenPriv->off_screen_areas = area->next; - xfree (area); - } -} -- cgit v1.2.3