cache.c File Reference

#include "precomp.h"

Include dependency graph for cache.c:

Go to the source code of this file.

Classes
struct	bmpcache_entry

Macros
#define	NUM_ELEMENTS(array)   (sizeof(array) / sizeof(array[0]))
#define	TO_TOP   -1
#define	NOT_SET   -1
#define	IS_SET(idx)   (idx >= 0)
#define	BUMP_COUNT   40

Functions
void	cache_rebuild_bmpcache_linked_list (uint8 id, sint16 *idx, int count)
void	cache_bump_bitmap (uint8 id, uint16 idx, int bump)
void	cache_evict_bitmap (uint8 id)
RD_HBITMAP	cache_get_bitmap (uint8 id, uint16 idx)
void	cache_put_bitmap (uint8 id, uint16 idx, RD_HBITMAP bitmap)
void	cache_save_state (void)
FONTGLYPH *	cache_get_font (uint8 font, uint16 character)
void	cache_put_font (uint8 font, uint16 character, uint16 offset, uint16 baseline, uint16 width, uint16 height, RD_HGLYPH pixmap)
DATABLOB *	cache_get_text (uint8 cache_id)
void	cache_put_text (uint8 cache_id, void *data, int length)
uint8 *	cache_get_desktop (uint32 offset, int cx, int cy, int bytes_per_pixel)
void	cache_put_desktop (uint32 offset, int cx, int cy, int scanline, int bytes_per_pixel, uint8 *data)
RD_HCURSOR	cache_get_cursor (uint16 cache_idx)
void	cache_put_cursor (uint16 cache_idx, RD_HCURSOR cursor)
BRUSHDATA *	cache_get_brush_data (uint8 colour_code, uint8 idx)
void	cache_put_brush_data (uint8 colour_code, uint8 idx, BRUSHDATA *brush_data)

Variables
int	g_pstcache_fd []
static struct bmpcache_entry	g_bmpcache [3][0xa00]
static RD_HBITMAP	g_volatile_bc [3]
static int	g_bmpcache_lru [3] = { NOT_SET, NOT_SET, NOT_SET }
static int	g_bmpcache_mru [3] = { NOT_SET, NOT_SET, NOT_SET }
static int	g_bmpcache_count [3]
static FONTGLYPH	g_fontcache [12][256]
static DATABLOB	g_textcache [256]
static uint8	g_deskcache [0x38400 *4]
static RD_HCURSOR	g_cursorcache [0x20]
static BRUSHDATA	g_brushcache [2][64]

Macro Definition Documentation

BUMP_COUNT

#define BUMP_COUNT   40

Definition at line 39 of file cache.c.

IS_SET

#define IS_SET

(

idx

)

(idx >= 0)

Definition at line 31 of file cache.c.

NOT_SET

#define NOT_SET   -1

Definition at line 30 of file cache.c.

NUM_ELEMENTS

#define NUM_ELEMENTS

(

array

)

(sizeof(array) / sizeof(array[0]))

Definition at line 27 of file cache.c.

TO_TOP

#define TO_TOP   -1

Definition at line 29 of file cache.c.

Function Documentation

cache_bump_bitmap()

void cache_bump_bitmap	(	uint8	id,
		uint16	idx,
		int	bump
	)

Definition at line 104 of file cache.c.

{
    int p_idx, n_idx, n;
 
    if (!IS_PERSISTENT(id))
        return;
 
    if (g_bmpcache_mru[id] == idx)
        return;
 
    DEBUG_RDP5(("bump bitmap: id=%d, idx=%d, bump=%d\n", id, idx, bump));
 
    n_idx = g_bmpcache[id][idx].next;
    p_idx = g_bmpcache[id][idx].previous;
 
    if (IS_SET(n_idx))
    {
        /* remove */
        --g_bmpcache_count[id];
        if (IS_SET(p_idx))
            g_bmpcache[id][p_idx].next = n_idx;
        else
            g_bmpcache_lru[id] = n_idx;
        if (IS_SET(n_idx))
            g_bmpcache[id][n_idx].previous = p_idx;
        else
            g_bmpcache_mru[id] = p_idx;
    }
    else
    {
        p_idx = NOT_SET;
        n_idx = g_bmpcache_lru[id];
    }
 
    if (bump >= 0)
    {
        for (n = 0; n < bump && IS_SET(n_idx); n++)
        {
            p_idx = n_idx;
            n_idx = g_bmpcache[id][p_idx].next;
        }
    }
    else
    {
        p_idx = g_bmpcache_mru[id];
        n_idx = NOT_SET;
    }
 
    /* insert */
    ++g_bmpcache_count[id];
    g_bmpcache[id][idx].previous = p_idx;
    g_bmpcache[id][idx].next = n_idx;
 
    if (p_idx >= 0)
        g_bmpcache[id][p_idx].next = idx;
    else
        g_bmpcache_lru[id] = idx;
 
    if (n_idx >= 0)
        g_bmpcache[id][n_idx].previous = idx;
    else
        g_bmpcache_mru[id] = idx;
}

Referenced by cache_get_bitmap(), and cache_put_bitmap().

cache_evict_bitmap()

void cache_evict_bitmap

(

uint8

id

)

Definition at line 170 of file cache.c.

{
    uint16 idx;
    int n_idx;
 
    if (!IS_PERSISTENT(id))
        return;
 
    idx = g_bmpcache_lru[id];
    n_idx = g_bmpcache[id][idx].next;
    DEBUG_RDP5(("evict bitmap: id=%d idx=%d n_idx=%d bmp=%p\n", id, idx, n_idx,
            g_bmpcache[id][idx].bitmap));
 
    ui_destroy_bitmap(g_bmpcache[id][idx].bitmap);
    --g_bmpcache_count[id];
    g_bmpcache[id][idx].bitmap = 0;
 
    g_bmpcache_lru[id] = n_idx;
    g_bmpcache[id][n_idx].previous = NOT_SET;
 
    pstcache_touch_bitmap(id, idx, 0);
}

Referenced by cache_put_bitmap().

cache_get_bitmap()

RD_HBITMAP cache_get_bitmap	(	uint8	id,
		uint16	idx
	)

Definition at line 195 of file cache.c.

{
    if ((id < NUM_ELEMENTS(g_bmpcache)) && (idx < NUM_ELEMENTS(g_bmpcache[0])))
    {
        if (g_bmpcache[id][idx].bitmap || pstcache_load_bitmap(id, idx))
        {
            if (IS_PERSISTENT(id))
                cache_bump_bitmap(id, idx, BUMP_COUNT);
 
            return g_bmpcache[id][idx].bitmap;
        }
    }
    else if ((id < NUM_ELEMENTS(g_volatile_bc)) && (idx == 0x7fff))
    {
        return g_volatile_bc[id];
    }
 
    error("get bitmap %d:%d\n", id, idx);
    return NULL;
}

Referenced by process_memblt(), and process_triblt().

cache_get_brush_data()

BRUSHDATA * cache_get_brush_data	(	uint8	colour_code,
		uint8	idx
	)

Definition at line 441 of file cache.c.

{
    colour_code = colour_code == 1 ? 0 : 1;
    if (idx < NUM_ELEMENTS(g_brushcache[0]))
    {
        return &g_brushcache[colour_code][idx];
    }
    error("get brush %d %d\n", colour_code, idx);
    return NULL;
}

Referenced by setup_brush().

cache_get_cursor()

RD_HCURSOR cache_get_cursor

(

uint16

cache_idx

)

Definition at line 400 of file cache.c.

{
    RD_HCURSOR cursor;
 
    if (cache_idx < NUM_ELEMENTS(g_cursorcache))
    {
        cursor = g_cursorcache[cache_idx];
        if (cursor != NULL)
            return cursor;
    }
 
    error("get cursor %d\n", cache_idx);
    return NULL;
}

Referenced by process_cached_pointer_pdu().

cache_get_desktop()

uint8 * cache_get_desktop	(	uint32	offset,
		int	cx,
		int	cy,
		int	bytes_per_pixel
	)

Definition at line 353 of file cache.c.

{
    int length = cx * cy * bytes_per_pixel;
 
    if (offset > sizeof(g_deskcache))
        offset = 0;
 
    if ((offset + length) <= sizeof(g_deskcache))
    {
        return &g_deskcache[offset];
    }
 
    error("get desktop %d:%d\n", offset, length);
    return NULL;
}

Referenced by RdpClientUI::Display_RestoreDesktop(), and ui_desktop_restore().

cache_get_font()

FONTGLYPH * cache_get_font	(	uint8	font,
		uint16	character
	)

Definition at line 279 of file cache.c.

{
    FONTGLYPH *glyph;
 
    if ((font < NUM_ELEMENTS(g_fontcache)) && (character < NUM_ELEMENTS(g_fontcache[0])))
    {
        glyph = &g_fontcache[font][character];
        if (glyph->pixmap != NULL)
            return glyph;
    }
 
    error("get font %d:%d\n", font, character);
    return NULL;
}

Referenced by RdpClientUI::Display_DoGlyph().

cache_get_text()

DATABLOB * cache_get_text

(

uint8

cache_id

)

Definition at line 325 of file cache.c.

{
    DATABLOB *text;
 
    text = &g_textcache[cache_id];
    return text;
}

Referenced by RdpClientUI::Display_DrawText(), and ui_draw_text().

cache_put_bitmap()

void cache_put_bitmap	(	uint8	id,
		uint16	idx,
		RD_HBITMAP	bitmap
	)

Definition at line 218 of file cache.c.

{
    RD_HBITMAP old;
 
    if ((id < NUM_ELEMENTS(g_bmpcache)) && (idx < NUM_ELEMENTS(g_bmpcache[0])))
    {
        old = g_bmpcache[id][idx].bitmap;
        if (old != NULL)
            ui_destroy_bitmap(old);
        g_bmpcache[id][idx].bitmap = bitmap;
 
        if (IS_PERSISTENT(id))
        {
            if (old == NULL)
                g_bmpcache[id][idx].previous = g_bmpcache[id][idx].next = NOT_SET;
 
            cache_bump_bitmap(id, idx, TO_TOP);
            if (g_bmpcache_count[id] > BMPCACHE2_C2_CELLS)
                cache_evict_bitmap(id);
        }
    }
    else if ((id < NUM_ELEMENTS(g_volatile_bc)) && (idx == 0x7fff))
    {
        old = g_volatile_bc[id];
        if (old != NULL)
            ui_destroy_bitmap(old);
        g_volatile_bc[id] = bitmap;
    }
    else
    {
        error("put bitmap %d:%d\n", id, idx);
    }
}

Referenced by process_bmpcache(), process_bmpcache2(), process_raw_bmpcache(), and pstcache_load_bitmap().

cache_put_brush_data()

void cache_put_brush_data	(	uint8	colour_code,
		uint8	idx,
		BRUSHDATA *	brush_data
	)

Definition at line 455 of file cache.c.

{
    BRUSHDATA *bd;
 
    colour_code = colour_code == 1 ? 0 : 1;
    if (idx < NUM_ELEMENTS(g_brushcache[0]))
    {
        bd = &g_brushcache[colour_code][idx];
        if (bd->data != 0)
        {
            xfree(bd->data);
        }
        memcpy(bd, brush_data, sizeof(BRUSHDATA));
    }
    else
    {
        error("put brush %d %d\n", colour_code, idx);
    }
}

Referenced by process_brushcache().

cache_put_cursor()

void cache_put_cursor	(	uint16	cache_idx,
		RD_HCURSOR	cursor
	)

Definition at line 417 of file cache.c.

{
    RD_HCURSOR old;
 
    if (cache_idx < NUM_ELEMENTS(g_cursorcache))
    {
        old = g_cursorcache[cache_idx];
        if (old != NULL)
            ui_destroy_cursor(old);
 
        g_cursorcache[cache_idx] = cursor;
    }
    else
    {
        error("put cursor %d\n", cache_idx);
    }
}

Referenced by process_colour_pointer_common(), and process_colour_pointer_pdu().

cache_put_desktop()

void cache_put_desktop	(	uint32	offset,
		int	cx,
		int	cy,
		int	scanline,
		int	bytes_per_pixel,
		uint8 *	data
	)

Definition at line 371 of file cache.c.

{
    int length = cx * cy * bytes_per_pixel;
 
    if (offset > sizeof(g_deskcache))
        offset = 0;
 
    if ((offset + length) <= sizeof(g_deskcache))
    {
        cx *= bytes_per_pixel;
        while (cy--)
        {
            memcpy(&g_deskcache[offset], data, cx);
            data += scanline;
            offset += cx;
        }
    }
    else
    {
        error("put desktop %d:%d\n", offset, length);
    }
}

Referenced by RdpClientUI::Display_SaveDesktop(), and ui_desktop_save().

cache_put_font()

void cache_put_font	(	uint8	font,
		uint16	character,
		uint16	offset,
		uint16	baseline,
		uint16	width,
		uint16	height,
		RD_HGLYPH	pixmap
	)

Definition at line 296 of file cache.c.

{
    FONTGLYPH *glyph;
 
    if ((font < NUM_ELEMENTS(g_fontcache)) && (character < NUM_ELEMENTS(g_fontcache[0])))
    {
        glyph = &g_fontcache[font][character];
        if (glyph->pixmap != NULL)
            ui_destroy_glyph(glyph->pixmap);
 
        glyph->offset = offset;
        glyph->baseline = baseline;
        glyph->width = width;
        glyph->height = height;
        glyph->pixmap = pixmap;
    }
    else
    {
        error("put font %d:%d\n", font, character);
    }
}

Referenced by process_fontcache().

cache_put_text()

void cache_put_text	(	uint8	cache_id,
		void *	data,
		int	length
	)

Definition at line 335 of file cache.c.

{
    DATABLOB *text;
 
    text = &g_textcache[cache_id];
    if (text->data != NULL)
        xfree(text->data);
    text->data = xmalloc(length);
    text->size = length;
    memcpy(text->data, data, length);
}

Referenced by RdpClientUI::Display_DrawText(), and ui_draw_text().

cache_rebuild_bmpcache_linked_list()

void cache_rebuild_bmpcache_linked_list	(	uint8	id,
		sint16 *	idx,
		int	count
	)

Definition at line 58 of file cache.c.

{
    int n = count, c = 0;
    sint16 n_idx;
 
    /* find top, skip evicted bitmaps */
    while (--n >= 0 && g_bmpcache[id][idx[n]].bitmap == NULL);
    if (n < 0)
    {
        g_bmpcache_mru[id] = g_bmpcache_lru[id] = NOT_SET;
        return;
    }
 
    g_bmpcache_mru[id] = idx[n];
    g_bmpcache[id][idx[n]].next = NOT_SET;
    n_idx = idx[n];
    c++;
 
    /* link list */
    while (n >= 0)
    {
        /* skip evicted bitmaps */
        while (--n >= 0 && g_bmpcache[id][idx[n]].bitmap == NULL);
 
        if (n < 0)
            break;
 
        g_bmpcache[id][n_idx].previous = idx[n];
        g_bmpcache[id][idx[n]].next = n_idx;
        n_idx = idx[n];
        c++;
    }
 
    g_bmpcache[id][n_idx].previous = NOT_SET;
    g_bmpcache_lru[id] = n_idx;
 
    if (c != g_bmpcache_count[id])
    {
        error("Oops. %d in bitmap cache linked list, %d in ui cache...\n", c,
              g_bmpcache_count[id]);
        exit(EX_SOFTWARE);
    }
}

Referenced by pstcache_enumerate().

cache_save_state()

void cache_save_state

(

void

)

Definition at line 254 of file cache.c.

{
    uint32 id = 0, t = 0;
    int idx;
 
    for (id = 0; id < NUM_ELEMENTS(g_bmpcache); id++)
        if (IS_PERSISTENT(id))
        {
            DEBUG_RDP5(("Saving cache state for bitmap cache %d...", id));
            idx = g_bmpcache_lru[id];
            while (idx >= 0)
            {
                pstcache_touch_bitmap(id, idx, ++t);
                idx = g_bmpcache[id][idx].next;
            }
            DEBUG_RDP5((" %d stamps written.\n", t));
        }
}

Referenced by main().

Variable Documentation

g_bmpcache

struct bmpcache_entry g_bmpcache[3][0xa00]

static

Definition at line 48 of file cache.c.

Referenced by cache_bump_bitmap(), cache_evict_bitmap(), cache_get_bitmap(), cache_put_bitmap(), cache_rebuild_bmpcache_linked_list(), and cache_save_state().

g_bmpcache_count

int g_bmpcache_count[3]

static

Definition at line 54 of file cache.c.

Referenced by cache_bump_bitmap(), cache_evict_bitmap(), cache_put_bitmap(), and cache_rebuild_bmpcache_linked_list().

g_bmpcache_lru

int g_bmpcache_lru[3] = { NOT_SET, NOT_SET, NOT_SET }

static

Definition at line 51 of file cache.c.

Referenced by cache_bump_bitmap(), cache_evict_bitmap(), cache_rebuild_bmpcache_linked_list(), and cache_save_state().

g_bmpcache_mru

int g_bmpcache_mru[3] = { NOT_SET, NOT_SET, NOT_SET }

static

Definition at line 52 of file cache.c.

Referenced by cache_bump_bitmap(), and cache_rebuild_bmpcache_linked_list().

g_brushcache

BRUSHDATA g_brushcache[2][64]

static

Definition at line 437 of file cache.c.

Referenced by cache_get_brush_data(), and cache_put_brush_data().

g_cursorcache

RD_HCURSOR g_cursorcache[0x20]

static

Definition at line 396 of file cache.c.

Referenced by cache_get_cursor(), and cache_put_cursor().

g_deskcache

uint8 g_deskcache[0x38400 *4]

static

Definition at line 349 of file cache.c.

Referenced by cache_get_desktop(), and cache_put_desktop().

g_fontcache

FONTGLYPH g_fontcache[12][256]

static

Definition at line 275 of file cache.c.

Referenced by cache_get_font(), and cache_put_font().

g_pstcache_fd

int g_pstcache_fd[]

extern

Definition at line 31 of file pstcache.c.

Referenced by pstcache_enumerate(), pstcache_init(), pstcache_load_bitmap(), pstcache_save_bitmap(), and pstcache_touch_bitmap().

g_textcache

DATABLOB g_textcache[256]

static

Definition at line 321 of file cache.c.

Referenced by cache_get_text(), and cache_put_text().

g_volatile_bc

RD_HBITMAP g_volatile_bc[3]

static

Definition at line 49 of file cache.c.

Referenced by cache_get_bitmap(), and cache_put_bitmap().