a180a41bba1d50822df23fff0099e90b86638b89vboxsync/* -*- c-basic-offset: 8 -*-
a180a41bba1d50822df23fff0099e90b86638b89vboxsync rdesktop: A Remote Desktop Protocol client.
a180a41bba1d50822df23fff0099e90b86638b89vboxsync Cache routines
a180a41bba1d50822df23fff0099e90b86638b89vboxsync Copyright (C) Matthew Chapman <matthewc.unsw.edu.au> 1999-2008
a180a41bba1d50822df23fff0099e90b86638b89vboxsync Copyright (C) Jeroen Meijer <jeroen@oldambt7.com> 2005
a180a41bba1d50822df23fff0099e90b86638b89vboxsync Copyright 2003-2011 Peter Astrand <astrand@cendio.se> for Cendio AB
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync This program is free software: you can redistribute it and/or modify
a180a41bba1d50822df23fff0099e90b86638b89vboxsync it under the terms of the GNU General Public License as published by
a180a41bba1d50822df23fff0099e90b86638b89vboxsync the Free Software Foundation, either version 3 of the License, or
a180a41bba1d50822df23fff0099e90b86638b89vboxsync (at your option) any later version.
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync This program is distributed in the hope that it will be useful,
a180a41bba1d50822df23fff0099e90b86638b89vboxsync but WITHOUT ANY WARRANTY; without even the implied warranty of
a180a41bba1d50822df23fff0099e90b86638b89vboxsync MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
a180a41bba1d50822df23fff0099e90b86638b89vboxsync GNU General Public License for more details.
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync You should have received a copy of the GNU General Public License
a180a41bba1d50822df23fff0099e90b86638b89vboxsync along with this program. If not, see <http://www.gnu.org/licenses/>.
a180a41bba1d50822df23fff0099e90b86638b89vboxsync*/
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
6e9aa255e3376b2da5824c09c4c62bc233463bfevboxsync/*
6e9aa255e3376b2da5824c09c4c62bc233463bfevboxsync * Oracle GPL Disclaimer: For the avoidance of doubt, except that if any license choice
6e9aa255e3376b2da5824c09c4c62bc233463bfevboxsync * other than GPL or LGPL is available it will apply instead, Oracle elects to use only
6e9aa255e3376b2da5824c09c4c62bc233463bfevboxsync * the General Public License version 2 (GPLv2) at this time for any software where
6e9aa255e3376b2da5824c09c4c62bc233463bfevboxsync * a choice of GPL license versions is made available with the language indicating
6e9aa255e3376b2da5824c09c4c62bc233463bfevboxsync * that GPLv2 or any later version may be used, or where a choice of which version
6e9aa255e3376b2da5824c09c4c62bc233463bfevboxsync * of the GPL is applied is otherwise unspecified.
6e9aa255e3376b2da5824c09c4c62bc233463bfevboxsync */
6e9aa255e3376b2da5824c09c4c62bc233463bfevboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync#include "rdesktop.h"
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync/* BITMAP CACHE */
a180a41bba1d50822df23fff0099e90b86638b89vboxsyncextern int g_pstcache_fd[];
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync#define NUM_ELEMENTS(array) (sizeof(array) / sizeof(array[0]))
a180a41bba1d50822df23fff0099e90b86638b89vboxsync#define IS_PERSISTENT(id) (g_pstcache_fd[id] > 0)
a180a41bba1d50822df23fff0099e90b86638b89vboxsync#define TO_TOP -1
a180a41bba1d50822df23fff0099e90b86638b89vboxsync#define NOT_SET -1
a180a41bba1d50822df23fff0099e90b86638b89vboxsync#define IS_SET(idx) (idx >= 0)
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync/*
a180a41bba1d50822df23fff0099e90b86638b89vboxsync * TODO: Test for optimal value of BUMP_COUNT. TO_TOP gives lowest cpu utilisation but using
a180a41bba1d50822df23fff0099e90b86638b89vboxsync * a positive value will hopefully result in less frequently used bitmaps having a greater chance
a180a41bba1d50822df23fff0099e90b86638b89vboxsync * of being evicted from the cache, and therby reducing the need to load bitmaps from disk.
a180a41bba1d50822df23fff0099e90b86638b89vboxsync * (Jeroen)
a180a41bba1d50822df23fff0099e90b86638b89vboxsync */
a180a41bba1d50822df23fff0099e90b86638b89vboxsync#define BUMP_COUNT 40
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsyncstruct bmpcache_entry
a180a41bba1d50822df23fff0099e90b86638b89vboxsync{
a180a41bba1d50822df23fff0099e90b86638b89vboxsync RD_HBITMAP bitmap;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync sint16 previous;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync sint16 next;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync};
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsyncstatic struct bmpcache_entry g_bmpcache[3][0xa00];
a180a41bba1d50822df23fff0099e90b86638b89vboxsyncstatic RD_HBITMAP g_volatile_bc[3];
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsyncstatic int g_bmpcache_lru[3] = { NOT_SET, NOT_SET, NOT_SET };
a180a41bba1d50822df23fff0099e90b86638b89vboxsyncstatic int g_bmpcache_mru[3] = { NOT_SET, NOT_SET, NOT_SET };
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsyncstatic int g_bmpcache_count[3];
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync/* Setup the bitmap cache lru/mru linked list */
a180a41bba1d50822df23fff0099e90b86638b89vboxsyncvoid
a180a41bba1d50822df23fff0099e90b86638b89vboxsynccache_rebuild_bmpcache_linked_list(uint8 id, sint16 * idx, int count)
a180a41bba1d50822df23fff0099e90b86638b89vboxsync{
a180a41bba1d50822df23fff0099e90b86638b89vboxsync int n = count, c = 0;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync sint16 n_idx;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync /* find top, skip evicted bitmaps */
a180a41bba1d50822df23fff0099e90b86638b89vboxsync while (--n >= 0 && g_bmpcache[id][idx[n]].bitmap == NULL);
a180a41bba1d50822df23fff0099e90b86638b89vboxsync if (n < 0)
a180a41bba1d50822df23fff0099e90b86638b89vboxsync {
a180a41bba1d50822df23fff0099e90b86638b89vboxsync g_bmpcache_mru[id] = g_bmpcache_lru[id] = NOT_SET;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync return;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync }
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync g_bmpcache_mru[id] = idx[n];
a180a41bba1d50822df23fff0099e90b86638b89vboxsync g_bmpcache[id][idx[n]].next = NOT_SET;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync n_idx = idx[n];
a180a41bba1d50822df23fff0099e90b86638b89vboxsync c++;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync /* link list */
a180a41bba1d50822df23fff0099e90b86638b89vboxsync while (n >= 0)
a180a41bba1d50822df23fff0099e90b86638b89vboxsync {
a180a41bba1d50822df23fff0099e90b86638b89vboxsync /* skip evicted bitmaps */
a180a41bba1d50822df23fff0099e90b86638b89vboxsync while (--n >= 0 && g_bmpcache[id][idx[n]].bitmap == NULL);
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync if (n < 0)
a180a41bba1d50822df23fff0099e90b86638b89vboxsync break;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync g_bmpcache[id][n_idx].previous = idx[n];
a180a41bba1d50822df23fff0099e90b86638b89vboxsync g_bmpcache[id][idx[n]].next = n_idx;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync n_idx = idx[n];
a180a41bba1d50822df23fff0099e90b86638b89vboxsync c++;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync }
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync g_bmpcache[id][n_idx].previous = NOT_SET;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync g_bmpcache_lru[id] = n_idx;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync if (c != g_bmpcache_count[id])
a180a41bba1d50822df23fff0099e90b86638b89vboxsync {
a180a41bba1d50822df23fff0099e90b86638b89vboxsync error("Oops. %d in bitmap cache linked list, %d in ui cache...\n", c,
a180a41bba1d50822df23fff0099e90b86638b89vboxsync g_bmpcache_count[id]);
a180a41bba1d50822df23fff0099e90b86638b89vboxsync exit(EX_SOFTWARE);
a180a41bba1d50822df23fff0099e90b86638b89vboxsync }
a180a41bba1d50822df23fff0099e90b86638b89vboxsync}
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync/* Move a bitmap to a new position in the linked list. */
a180a41bba1d50822df23fff0099e90b86638b89vboxsyncvoid
a180a41bba1d50822df23fff0099e90b86638b89vboxsynccache_bump_bitmap(uint8 id, uint16 idx, int bump)
a180a41bba1d50822df23fff0099e90b86638b89vboxsync{
a180a41bba1d50822df23fff0099e90b86638b89vboxsync int p_idx, n_idx, n;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync if (!IS_PERSISTENT(id))
a180a41bba1d50822df23fff0099e90b86638b89vboxsync return;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync if (g_bmpcache_mru[id] == idx)
a180a41bba1d50822df23fff0099e90b86638b89vboxsync return;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync DEBUG_RDP5(("bump bitmap: id=%d, idx=%d, bump=%d\n", id, idx, bump));
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync n_idx = g_bmpcache[id][idx].next;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync p_idx = g_bmpcache[id][idx].previous;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync if (IS_SET(n_idx))
a180a41bba1d50822df23fff0099e90b86638b89vboxsync {
a180a41bba1d50822df23fff0099e90b86638b89vboxsync /* remove */
a180a41bba1d50822df23fff0099e90b86638b89vboxsync --g_bmpcache_count[id];
a180a41bba1d50822df23fff0099e90b86638b89vboxsync if (IS_SET(p_idx))
a180a41bba1d50822df23fff0099e90b86638b89vboxsync g_bmpcache[id][p_idx].next = n_idx;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync else
a180a41bba1d50822df23fff0099e90b86638b89vboxsync g_bmpcache_lru[id] = n_idx;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync if (IS_SET(n_idx))
a180a41bba1d50822df23fff0099e90b86638b89vboxsync g_bmpcache[id][n_idx].previous = p_idx;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync else
a180a41bba1d50822df23fff0099e90b86638b89vboxsync g_bmpcache_mru[id] = p_idx;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync }
a180a41bba1d50822df23fff0099e90b86638b89vboxsync else
a180a41bba1d50822df23fff0099e90b86638b89vboxsync {
a180a41bba1d50822df23fff0099e90b86638b89vboxsync p_idx = NOT_SET;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync n_idx = g_bmpcache_lru[id];
a180a41bba1d50822df23fff0099e90b86638b89vboxsync }
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync if (bump >= 0)
a180a41bba1d50822df23fff0099e90b86638b89vboxsync {
a180a41bba1d50822df23fff0099e90b86638b89vboxsync for (n = 0; n < bump && IS_SET(n_idx); n++)
a180a41bba1d50822df23fff0099e90b86638b89vboxsync {
a180a41bba1d50822df23fff0099e90b86638b89vboxsync p_idx = n_idx;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync n_idx = g_bmpcache[id][p_idx].next;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync }
a180a41bba1d50822df23fff0099e90b86638b89vboxsync }
a180a41bba1d50822df23fff0099e90b86638b89vboxsync else
a180a41bba1d50822df23fff0099e90b86638b89vboxsync {
a180a41bba1d50822df23fff0099e90b86638b89vboxsync p_idx = g_bmpcache_mru[id];
a180a41bba1d50822df23fff0099e90b86638b89vboxsync n_idx = NOT_SET;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync }
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync /* insert */
a180a41bba1d50822df23fff0099e90b86638b89vboxsync ++g_bmpcache_count[id];
a180a41bba1d50822df23fff0099e90b86638b89vboxsync g_bmpcache[id][idx].previous = p_idx;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync g_bmpcache[id][idx].next = n_idx;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync if (p_idx >= 0)
a180a41bba1d50822df23fff0099e90b86638b89vboxsync g_bmpcache[id][p_idx].next = idx;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync else
a180a41bba1d50822df23fff0099e90b86638b89vboxsync g_bmpcache_lru[id] = idx;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync if (n_idx >= 0)
a180a41bba1d50822df23fff0099e90b86638b89vboxsync g_bmpcache[id][n_idx].previous = idx;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync else
a180a41bba1d50822df23fff0099e90b86638b89vboxsync g_bmpcache_mru[id] = idx;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync}
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync/* Evict the least-recently used bitmap from the cache */
a180a41bba1d50822df23fff0099e90b86638b89vboxsyncvoid
a180a41bba1d50822df23fff0099e90b86638b89vboxsynccache_evict_bitmap(uint8 id)
a180a41bba1d50822df23fff0099e90b86638b89vboxsync{
a180a41bba1d50822df23fff0099e90b86638b89vboxsync uint16 idx;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync int n_idx;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync if (!IS_PERSISTENT(id))
a180a41bba1d50822df23fff0099e90b86638b89vboxsync return;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync idx = g_bmpcache_lru[id];
a180a41bba1d50822df23fff0099e90b86638b89vboxsync n_idx = g_bmpcache[id][idx].next;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync DEBUG_RDP5(("evict bitmap: id=%d idx=%d n_idx=%d bmp=%p\n", id, idx, n_idx,
a180a41bba1d50822df23fff0099e90b86638b89vboxsync g_bmpcache[id][idx].bitmap));
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync ui_destroy_bitmap(g_bmpcache[id][idx].bitmap);
a180a41bba1d50822df23fff0099e90b86638b89vboxsync --g_bmpcache_count[id];
a180a41bba1d50822df23fff0099e90b86638b89vboxsync g_bmpcache[id][idx].bitmap = 0;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync g_bmpcache_lru[id] = n_idx;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync g_bmpcache[id][n_idx].previous = NOT_SET;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync pstcache_touch_bitmap(id, idx, 0);
a180a41bba1d50822df23fff0099e90b86638b89vboxsync}
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync/* Retrieve a bitmap from the cache */
a180a41bba1d50822df23fff0099e90b86638b89vboxsyncRD_HBITMAP
a180a41bba1d50822df23fff0099e90b86638b89vboxsynccache_get_bitmap(uint8 id, uint16 idx)
a180a41bba1d50822df23fff0099e90b86638b89vboxsync{
a180a41bba1d50822df23fff0099e90b86638b89vboxsync if ((id < NUM_ELEMENTS(g_bmpcache)) && (idx < NUM_ELEMENTS(g_bmpcache[0])))
a180a41bba1d50822df23fff0099e90b86638b89vboxsync {
a180a41bba1d50822df23fff0099e90b86638b89vboxsync if (g_bmpcache[id][idx].bitmap || pstcache_load_bitmap(id, idx))
a180a41bba1d50822df23fff0099e90b86638b89vboxsync {
a180a41bba1d50822df23fff0099e90b86638b89vboxsync if (IS_PERSISTENT(id))
a180a41bba1d50822df23fff0099e90b86638b89vboxsync cache_bump_bitmap(id, idx, BUMP_COUNT);
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync return g_bmpcache[id][idx].bitmap;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync }
a180a41bba1d50822df23fff0099e90b86638b89vboxsync }
a180a41bba1d50822df23fff0099e90b86638b89vboxsync else if ((id < NUM_ELEMENTS(g_volatile_bc)) && (idx == 0x7fff))
a180a41bba1d50822df23fff0099e90b86638b89vboxsync {
a180a41bba1d50822df23fff0099e90b86638b89vboxsync return g_volatile_bc[id];
a180a41bba1d50822df23fff0099e90b86638b89vboxsync }
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync error("get bitmap %d:%d\n", id, idx);
a180a41bba1d50822df23fff0099e90b86638b89vboxsync return NULL;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync}
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync/* Store a bitmap in the cache */
a180a41bba1d50822df23fff0099e90b86638b89vboxsyncvoid
a180a41bba1d50822df23fff0099e90b86638b89vboxsynccache_put_bitmap(uint8 id, uint16 idx, RD_HBITMAP bitmap)
a180a41bba1d50822df23fff0099e90b86638b89vboxsync{
a180a41bba1d50822df23fff0099e90b86638b89vboxsync RD_HBITMAP old;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync if ((id < NUM_ELEMENTS(g_bmpcache)) && (idx < NUM_ELEMENTS(g_bmpcache[0])))
a180a41bba1d50822df23fff0099e90b86638b89vboxsync {
a180a41bba1d50822df23fff0099e90b86638b89vboxsync old = g_bmpcache[id][idx].bitmap;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync if (old != NULL)
a180a41bba1d50822df23fff0099e90b86638b89vboxsync ui_destroy_bitmap(old);
a180a41bba1d50822df23fff0099e90b86638b89vboxsync g_bmpcache[id][idx].bitmap = bitmap;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync if (IS_PERSISTENT(id))
a180a41bba1d50822df23fff0099e90b86638b89vboxsync {
a180a41bba1d50822df23fff0099e90b86638b89vboxsync if (old == NULL)
a180a41bba1d50822df23fff0099e90b86638b89vboxsync g_bmpcache[id][idx].previous = g_bmpcache[id][idx].next = NOT_SET;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync cache_bump_bitmap(id, idx, TO_TOP);
a180a41bba1d50822df23fff0099e90b86638b89vboxsync if (g_bmpcache_count[id] > BMPCACHE2_C2_CELLS)
a180a41bba1d50822df23fff0099e90b86638b89vboxsync cache_evict_bitmap(id);
a180a41bba1d50822df23fff0099e90b86638b89vboxsync }
a180a41bba1d50822df23fff0099e90b86638b89vboxsync }
a180a41bba1d50822df23fff0099e90b86638b89vboxsync else if ((id < NUM_ELEMENTS(g_volatile_bc)) && (idx == 0x7fff))
a180a41bba1d50822df23fff0099e90b86638b89vboxsync {
a180a41bba1d50822df23fff0099e90b86638b89vboxsync old = g_volatile_bc[id];
a180a41bba1d50822df23fff0099e90b86638b89vboxsync if (old != NULL)
a180a41bba1d50822df23fff0099e90b86638b89vboxsync ui_destroy_bitmap(old);
a180a41bba1d50822df23fff0099e90b86638b89vboxsync g_volatile_bc[id] = bitmap;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync }
a180a41bba1d50822df23fff0099e90b86638b89vboxsync else
a180a41bba1d50822df23fff0099e90b86638b89vboxsync {
a180a41bba1d50822df23fff0099e90b86638b89vboxsync error("put bitmap %d:%d\n", id, idx);
a180a41bba1d50822df23fff0099e90b86638b89vboxsync }
a180a41bba1d50822df23fff0099e90b86638b89vboxsync}
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync/* Updates the persistent bitmap cache MRU information on exit */
a180a41bba1d50822df23fff0099e90b86638b89vboxsyncvoid
a180a41bba1d50822df23fff0099e90b86638b89vboxsynccache_save_state(void)
a180a41bba1d50822df23fff0099e90b86638b89vboxsync{
a180a41bba1d50822df23fff0099e90b86638b89vboxsync uint32 id = 0, t = 0;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync int idx;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync for (id = 0; id < NUM_ELEMENTS(g_bmpcache); id++)
a180a41bba1d50822df23fff0099e90b86638b89vboxsync if (IS_PERSISTENT(id))
a180a41bba1d50822df23fff0099e90b86638b89vboxsync {
a180a41bba1d50822df23fff0099e90b86638b89vboxsync DEBUG_RDP5(("Saving cache state for bitmap cache %d...", id));
a180a41bba1d50822df23fff0099e90b86638b89vboxsync idx = g_bmpcache_lru[id];
a180a41bba1d50822df23fff0099e90b86638b89vboxsync while (idx >= 0)
a180a41bba1d50822df23fff0099e90b86638b89vboxsync {
a180a41bba1d50822df23fff0099e90b86638b89vboxsync pstcache_touch_bitmap(id, idx, ++t);
a180a41bba1d50822df23fff0099e90b86638b89vboxsync idx = g_bmpcache[id][idx].next;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync }
a180a41bba1d50822df23fff0099e90b86638b89vboxsync DEBUG_RDP5((" %d stamps written.\n", t));
a180a41bba1d50822df23fff0099e90b86638b89vboxsync }
a180a41bba1d50822df23fff0099e90b86638b89vboxsync}
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync/* FONT CACHE */
a180a41bba1d50822df23fff0099e90b86638b89vboxsyncstatic FONTGLYPH g_fontcache[12][256];
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync/* Retrieve a glyph from the font cache */
a180a41bba1d50822df23fff0099e90b86638b89vboxsyncFONTGLYPH *
a180a41bba1d50822df23fff0099e90b86638b89vboxsynccache_get_font(uint8 font, uint16 character)
a180a41bba1d50822df23fff0099e90b86638b89vboxsync{
a180a41bba1d50822df23fff0099e90b86638b89vboxsync FONTGLYPH *glyph;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync if ((font < NUM_ELEMENTS(g_fontcache)) && (character < NUM_ELEMENTS(g_fontcache[0])))
a180a41bba1d50822df23fff0099e90b86638b89vboxsync {
a180a41bba1d50822df23fff0099e90b86638b89vboxsync glyph = &g_fontcache[font][character];
a180a41bba1d50822df23fff0099e90b86638b89vboxsync if (glyph->pixmap != NULL)
a180a41bba1d50822df23fff0099e90b86638b89vboxsync return glyph;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync }
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync error("get font %d:%d\n", font, character);
a180a41bba1d50822df23fff0099e90b86638b89vboxsync return NULL;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync}
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync/* Store a glyph in the font cache */
a180a41bba1d50822df23fff0099e90b86638b89vboxsyncvoid
a180a41bba1d50822df23fff0099e90b86638b89vboxsynccache_put_font(uint8 font, uint16 character, uint16 offset,
a180a41bba1d50822df23fff0099e90b86638b89vboxsync uint16 baseline, uint16 width, uint16 height, RD_HGLYPH pixmap)
a180a41bba1d50822df23fff0099e90b86638b89vboxsync{
a180a41bba1d50822df23fff0099e90b86638b89vboxsync FONTGLYPH *glyph;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync if ((font < NUM_ELEMENTS(g_fontcache)) && (character < NUM_ELEMENTS(g_fontcache[0])))
a180a41bba1d50822df23fff0099e90b86638b89vboxsync {
a180a41bba1d50822df23fff0099e90b86638b89vboxsync glyph = &g_fontcache[font][character];
a180a41bba1d50822df23fff0099e90b86638b89vboxsync if (glyph->pixmap != NULL)
a180a41bba1d50822df23fff0099e90b86638b89vboxsync ui_destroy_glyph(glyph->pixmap);
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync glyph->offset = offset;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync glyph->baseline = baseline;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync glyph->width = width;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync glyph->height = height;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync glyph->pixmap = pixmap;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync }
a180a41bba1d50822df23fff0099e90b86638b89vboxsync else
a180a41bba1d50822df23fff0099e90b86638b89vboxsync {
a180a41bba1d50822df23fff0099e90b86638b89vboxsync error("put font %d:%d\n", font, character);
a180a41bba1d50822df23fff0099e90b86638b89vboxsync }
a180a41bba1d50822df23fff0099e90b86638b89vboxsync}
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync/* TEXT CACHE */
a180a41bba1d50822df23fff0099e90b86638b89vboxsyncstatic DATABLOB g_textcache[256];
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync/* Retrieve a text item from the cache */
a180a41bba1d50822df23fff0099e90b86638b89vboxsyncDATABLOB *
a180a41bba1d50822df23fff0099e90b86638b89vboxsynccache_get_text(uint8 cache_id)
a180a41bba1d50822df23fff0099e90b86638b89vboxsync{
a180a41bba1d50822df23fff0099e90b86638b89vboxsync DATABLOB *text;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync text = &g_textcache[cache_id];
a180a41bba1d50822df23fff0099e90b86638b89vboxsync return text;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync}
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync/* Store a text item in the cache */
a180a41bba1d50822df23fff0099e90b86638b89vboxsyncvoid
a180a41bba1d50822df23fff0099e90b86638b89vboxsynccache_put_text(uint8 cache_id, void *data, int length)
a180a41bba1d50822df23fff0099e90b86638b89vboxsync{
a180a41bba1d50822df23fff0099e90b86638b89vboxsync DATABLOB *text;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync text = &g_textcache[cache_id];
a180a41bba1d50822df23fff0099e90b86638b89vboxsync if (text->data != NULL)
a180a41bba1d50822df23fff0099e90b86638b89vboxsync xfree(text->data);
a180a41bba1d50822df23fff0099e90b86638b89vboxsync text->data = xmalloc(length);
a180a41bba1d50822df23fff0099e90b86638b89vboxsync text->size = length;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync memcpy(text->data, data, length);
a180a41bba1d50822df23fff0099e90b86638b89vboxsync}
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync/* DESKTOP CACHE */
a180a41bba1d50822df23fff0099e90b86638b89vboxsyncstatic uint8 g_deskcache[0x38400 * 4];
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync/* Retrieve desktop data from the cache */
a180a41bba1d50822df23fff0099e90b86638b89vboxsyncuint8 *
a180a41bba1d50822df23fff0099e90b86638b89vboxsynccache_get_desktop(uint32 offset, int cx, int cy, int bytes_per_pixel)
a180a41bba1d50822df23fff0099e90b86638b89vboxsync{
a180a41bba1d50822df23fff0099e90b86638b89vboxsync int length = cx * cy * bytes_per_pixel;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync if (offset > sizeof(g_deskcache))
a180a41bba1d50822df23fff0099e90b86638b89vboxsync offset = 0;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync if ((offset + length) <= sizeof(g_deskcache))
a180a41bba1d50822df23fff0099e90b86638b89vboxsync {
a180a41bba1d50822df23fff0099e90b86638b89vboxsync return &g_deskcache[offset];
a180a41bba1d50822df23fff0099e90b86638b89vboxsync }
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync error("get desktop %d:%d\n", offset, length);
a180a41bba1d50822df23fff0099e90b86638b89vboxsync return NULL;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync}
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync/* Store desktop data in the cache */
a180a41bba1d50822df23fff0099e90b86638b89vboxsyncvoid
a180a41bba1d50822df23fff0099e90b86638b89vboxsynccache_put_desktop(uint32 offset, int cx, int cy, int scanline, int bytes_per_pixel, uint8 * data)
a180a41bba1d50822df23fff0099e90b86638b89vboxsync{
a180a41bba1d50822df23fff0099e90b86638b89vboxsync int length = cx * cy * bytes_per_pixel;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync if (offset > sizeof(g_deskcache))
a180a41bba1d50822df23fff0099e90b86638b89vboxsync offset = 0;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync if ((offset + length) <= sizeof(g_deskcache))
a180a41bba1d50822df23fff0099e90b86638b89vboxsync {
a180a41bba1d50822df23fff0099e90b86638b89vboxsync cx *= bytes_per_pixel;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync while (cy--)
a180a41bba1d50822df23fff0099e90b86638b89vboxsync {
a180a41bba1d50822df23fff0099e90b86638b89vboxsync memcpy(&g_deskcache[offset], data, cx);
a180a41bba1d50822df23fff0099e90b86638b89vboxsync data += scanline;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync offset += cx;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync }
a180a41bba1d50822df23fff0099e90b86638b89vboxsync }
a180a41bba1d50822df23fff0099e90b86638b89vboxsync else
a180a41bba1d50822df23fff0099e90b86638b89vboxsync {
a180a41bba1d50822df23fff0099e90b86638b89vboxsync error("put desktop %d:%d\n", offset, length);
a180a41bba1d50822df23fff0099e90b86638b89vboxsync }
a180a41bba1d50822df23fff0099e90b86638b89vboxsync}
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync/* CURSOR CACHE */
a180a41bba1d50822df23fff0099e90b86638b89vboxsyncstatic RD_HCURSOR g_cursorcache[0x20];
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync/* Retrieve cursor from cache */
a180a41bba1d50822df23fff0099e90b86638b89vboxsyncRD_HCURSOR
a180a41bba1d50822df23fff0099e90b86638b89vboxsynccache_get_cursor(uint16 cache_idx)
a180a41bba1d50822df23fff0099e90b86638b89vboxsync{
a180a41bba1d50822df23fff0099e90b86638b89vboxsync RD_HCURSOR cursor;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync if (cache_idx < NUM_ELEMENTS(g_cursorcache))
a180a41bba1d50822df23fff0099e90b86638b89vboxsync {
a180a41bba1d50822df23fff0099e90b86638b89vboxsync cursor = g_cursorcache[cache_idx];
a180a41bba1d50822df23fff0099e90b86638b89vboxsync if (cursor != NULL)
a180a41bba1d50822df23fff0099e90b86638b89vboxsync return cursor;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync }
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync error("get cursor %d\n", cache_idx);
a180a41bba1d50822df23fff0099e90b86638b89vboxsync return NULL;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync}
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync/* Store cursor in cache */
a180a41bba1d50822df23fff0099e90b86638b89vboxsyncvoid
a180a41bba1d50822df23fff0099e90b86638b89vboxsynccache_put_cursor(uint16 cache_idx, RD_HCURSOR cursor)
a180a41bba1d50822df23fff0099e90b86638b89vboxsync{
a180a41bba1d50822df23fff0099e90b86638b89vboxsync RD_HCURSOR old;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync if (cache_idx < NUM_ELEMENTS(g_cursorcache))
a180a41bba1d50822df23fff0099e90b86638b89vboxsync {
a180a41bba1d50822df23fff0099e90b86638b89vboxsync old = g_cursorcache[cache_idx];
a180a41bba1d50822df23fff0099e90b86638b89vboxsync if (old != NULL)
a180a41bba1d50822df23fff0099e90b86638b89vboxsync ui_destroy_cursor(old);
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync g_cursorcache[cache_idx] = cursor;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync }
a180a41bba1d50822df23fff0099e90b86638b89vboxsync else
a180a41bba1d50822df23fff0099e90b86638b89vboxsync {
a180a41bba1d50822df23fff0099e90b86638b89vboxsync error("put cursor %d\n", cache_idx);
a180a41bba1d50822df23fff0099e90b86638b89vboxsync }
a180a41bba1d50822df23fff0099e90b86638b89vboxsync}
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync/* BRUSH CACHE */
a180a41bba1d50822df23fff0099e90b86638b89vboxsync/* index 0 is 2 colour brush, index 1 is muti colour brush */
a180a41bba1d50822df23fff0099e90b86638b89vboxsyncstatic BRUSHDATA g_brushcache[2][64];
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync/* Retrieve brush from cache */
a180a41bba1d50822df23fff0099e90b86638b89vboxsyncBRUSHDATA *
a180a41bba1d50822df23fff0099e90b86638b89vboxsynccache_get_brush_data(uint8 colour_code, uint8 idx)
a180a41bba1d50822df23fff0099e90b86638b89vboxsync{
a180a41bba1d50822df23fff0099e90b86638b89vboxsync colour_code = colour_code == 1 ? 0 : 1;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync if (idx < NUM_ELEMENTS(g_brushcache[0]))
a180a41bba1d50822df23fff0099e90b86638b89vboxsync {
a180a41bba1d50822df23fff0099e90b86638b89vboxsync return &g_brushcache[colour_code][idx];
a180a41bba1d50822df23fff0099e90b86638b89vboxsync }
a180a41bba1d50822df23fff0099e90b86638b89vboxsync error("get brush %d %d\n", colour_code, idx);
a180a41bba1d50822df23fff0099e90b86638b89vboxsync return NULL;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync}
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync/* Store brush in cache */
a180a41bba1d50822df23fff0099e90b86638b89vboxsync/* this function takes over the data pointer in struct, eg, caller gives it up */
a180a41bba1d50822df23fff0099e90b86638b89vboxsyncvoid
a180a41bba1d50822df23fff0099e90b86638b89vboxsynccache_put_brush_data(uint8 colour_code, uint8 idx, BRUSHDATA * brush_data)
a180a41bba1d50822df23fff0099e90b86638b89vboxsync{
a180a41bba1d50822df23fff0099e90b86638b89vboxsync BRUSHDATA *bd;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync
a180a41bba1d50822df23fff0099e90b86638b89vboxsync colour_code = colour_code == 1 ? 0 : 1;
a180a41bba1d50822df23fff0099e90b86638b89vboxsync if (idx < NUM_ELEMENTS(g_brushcache[0]))
a180a41bba1d50822df23fff0099e90b86638b89vboxsync {
a180a41bba1d50822df23fff0099e90b86638b89vboxsync bd = &g_brushcache[colour_code][idx];
a180a41bba1d50822df23fff0099e90b86638b89vboxsync if (bd->data != 0)
a180a41bba1d50822df23fff0099e90b86638b89vboxsync {
a180a41bba1d50822df23fff0099e90b86638b89vboxsync xfree(bd->data);
a180a41bba1d50822df23fff0099e90b86638b89vboxsync }
a180a41bba1d50822df23fff0099e90b86638b89vboxsync memcpy(bd, brush_data, sizeof(BRUSHDATA));
a180a41bba1d50822df23fff0099e90b86638b89vboxsync }
a180a41bba1d50822df23fff0099e90b86638b89vboxsync else
a180a41bba1d50822df23fff0099e90b86638b89vboxsync {
a180a41bba1d50822df23fff0099e90b86638b89vboxsync error("put brush %d %d\n", colour_code, idx);
a180a41bba1d50822df23fff0099e90b86638b89vboxsync }
a180a41bba1d50822df23fff0099e90b86638b89vboxsync}