mirror of https://github.com/neutrinolabs/xrdp
remove uirdesktop
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jsorg71
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1253
uirdesktop/bitmap.c
1253
uirdesktop/bitmap.c
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@ -1,833 +0,0 @@
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/* -*- c-basic-offset: 8 -*-
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rdesktop: A Remote Desktop Protocol client.
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Generics backingstore operations
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Copyright (C) Jay Sorg 2005-2006
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <stdlib.h>
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#include <string.h>
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#include "bsops.h"
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/* externals */
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extern int g_width;
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extern int g_height;
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extern int g_bs_bpp;
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extern int g_bs_Bpp;
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extern char * g_bs;
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/* globals */
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static int g_clip_left = 0;
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static int g_clip_top = 0;
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static int g_clip_right = 800;
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static int g_clip_bottom = 600;
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/* for bs_patblt */
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static unsigned char g_hatch_patterns[] =
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{
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0x00, 0x00, 0x00, 0xff, 0x00, 0x00, 0x00, 0x00, /* 0 - bsHorizontal */
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0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08, /* 1 - bsVertical */
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0x80, 0x40, 0x20, 0x10, 0x08, 0x04, 0x02, 0x01, /* 2 - bsFDiagonal */
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0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, /* 3 - bsBDiagonal */
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0x08, 0x08, 0x08, 0xff, 0x08, 0x08, 0x08, 0x08, /* 4 - bsCross */
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0x81, 0x42, 0x24, 0x18, 0x18, 0x24, 0x42, 0x81 /* 5 - bsDiagCross */
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};
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/*****************************************************************************/
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/* do a raster op */
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int
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bs_do_rop(int rop, int src, int dst)
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{
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switch (rop)
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{
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case 0x0: return 0;
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case 0x1: return ~(src | dst);
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case 0x2: return (~src) & dst;
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case 0x3: return ~src;
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case 0x4: return src & (~dst);
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case 0x5: return ~(dst);
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case 0x6: return src ^ dst;
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case 0x7: return ~(src & dst);
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case 0x8: return src & dst;
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case 0x9: return ~(src) ^ dst;
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case 0xa: return dst;
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case 0xb: return (~src) | dst;
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case 0xc: return src;
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case 0xd: return src | (~dst);
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case 0xe: return src | dst;
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case 0xf: return ~0;
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}
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return dst;
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}
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/*****************************************************************************/
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/* get a pixel from the in memory copy of whats on the screen */
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int
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bs_get_pixel(int x, int y)
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{
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char * p;
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if (x >= 0 && x < g_width && y >= 0 && y < g_height)
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{
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p = g_bs + (y * g_width * g_bs_Bpp) + (x * g_bs_Bpp);
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if (g_bs_Bpp == 1)
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{
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return *((unsigned char *) p);
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}
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else if (g_bs_Bpp == 2)
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{
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return *((unsigned short *) p);
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}
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else
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{
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return *((unsigned int *) p);
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}
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}
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else
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{
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return 0;
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}
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}
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/*****************************************************************************/
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/* set a pixel on the screen using the clip */
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void
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bs_set_pixel(int x, int y, int pixel, int rop, int use_clip)
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{
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char * p;
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if (!use_clip ||
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(x >= g_clip_left && x < g_clip_right &&
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y >= g_clip_top && y < g_clip_bottom))
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{
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if (x >= 0 && x < g_width && y >= 0 && y < g_height)
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{
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p = g_bs + (y * g_width * g_bs_Bpp) + (x * g_bs_Bpp);
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if (rop != 12)
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{
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pixel = bs_do_rop(rop, pixel, bs_get_pixel(x, y));
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}
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if (g_bs_Bpp == 1)
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{
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*((unsigned char *) p) = pixel;
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}
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else if (g_bs_Bpp == 2)
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{
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*((unsigned short *) p) = pixel;
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}
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else
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{
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*((unsigned int *) p) = pixel;
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}
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}
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}
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}
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/*****************************************************************************/
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static char *
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get_bs_ptr(int x, int y)
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{
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char * p;
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if (x >= 0 && x < g_width && y >= 0 && y < g_height)
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{
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p = g_bs + (y * g_width * g_bs_Bpp) + (x * g_bs_Bpp);
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return p;
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}
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else
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{
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return 0;
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}
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}
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/*****************************************************************************/
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void
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bs_init(void)
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{
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g_clip_left = 0;
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g_clip_top = 0;
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g_clip_right = g_width;
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g_clip_bottom = g_height;
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}
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/*****************************************************************************/
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void
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bs_exit(void)
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{
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}
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/*****************************************************************************/
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void
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bs_set_clip(int x, int y, int cx, int cy)
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{
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g_clip_left = x;
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g_clip_top = y;
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g_clip_right = x + cx;
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g_clip_bottom = y + cy;
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}
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/*****************************************************************************/
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void
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bs_reset_clip(void)
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{
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g_clip_left = 0;
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g_clip_top = 0;
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g_clip_right = g_width;
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g_clip_bottom = g_height;
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}
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/*****************************************************************************/
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/* check if a certain pixel is set in a bitmap */
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int
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bs_is_pixel_on(char * data, int x, int y, int width, int bpp)
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{
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int start;
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int shift;
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if (bpp == 1)
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{
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width = (width + 7) / 8;
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start = (y * width) + x / 8;
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shift = x % 8;
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return (data[start] & (0x80 >> shift)) != 0;
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}
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else if (bpp == 8)
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{
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return data[y * width + x] != 0;
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}
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else if (bpp == 24)
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{
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return data[(y * 3) * width + (x * 3)] != 0 &&
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data[(y * 3) * width + (x * 3) + 1] != 0 &&
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data[(y * 3) * width + (x * 3) + 2] != 0;
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}
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else
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{
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return 0;
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}
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}
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/*****************************************************************************/
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void
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bs_set_pixel_on(char * data, int x, int y, int width, int bpp,
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int pixel)
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{
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int start;
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int shift;
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if (bpp == 1)
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{
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width = (width + 7) / 8;
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start = (y * width) + x / 8;
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shift = x % 8;
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if (pixel != 0)
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{
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data[start] = data[start] | (0x80 >> shift);
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}
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else
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{
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data[start] = data[start] & ~(0x80 >> shift);
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}
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}
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else if (bpp == 8)
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{
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data[y * width + x] = pixel;
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}
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else if (bpp == 15 || bpp == 16)
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{
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((unsigned short *) data)[y * width + x] = pixel;
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}
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}
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/*****************************************************************************/
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void
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bs_copy_mem(char * d, char * s, int n)
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{
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while (n & (~7))
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{
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*(d++) = *(s++);
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*(d++) = *(s++);
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*(d++) = *(s++);
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*(d++) = *(s++);
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*(d++) = *(s++);
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*(d++) = *(s++);
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*(d++) = *(s++);
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*(d++) = *(s++);
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n = n - 8;
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}
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while (n > 0)
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{
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*(d++) = *(s++);
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n--;
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}
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}
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/*****************************************************************************/
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void
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bs_copy_memb(char * d, char * s, int n)
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{
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d = (d + n) - 1;
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s = (s + n) - 1;
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while (n & (~7))
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{
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*(d--) = *(s--);
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*(d--) = *(s--);
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*(d--) = *(s--);
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*(d--) = *(s--);
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*(d--) = *(s--);
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*(d--) = *(s--);
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*(d--) = *(s--);
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*(d--) = *(s--);
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n = n - 8;
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}
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while (n > 0)
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{
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*(d--) = *(s--);
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n--;
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}
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}
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/*****************************************************************************/
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/* return true is the is something to draw */
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int
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bs_warp_coords(int * x, int * y, int * cx, int * cy,
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int * srcx, int * srcy)
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{
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int dx;
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int dy;
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if (g_clip_left > *x)
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{
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dx = g_clip_left - *x;
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}
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else
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{
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dx = 0;
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}
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if (g_clip_top > *y)
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{
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dy = g_clip_top - *y;
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}
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else
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{
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dy = 0;
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}
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if (*x + *cx > g_clip_right)
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{
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*cx = (*cx - ((*x + *cx) - g_clip_right));
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}
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if (*y + *cy > g_clip_bottom)
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{
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*cy = (*cy - ((*y + *cy) - g_clip_bottom));
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}
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*cx = *cx - dx;
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*cy = *cy - dy;
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if (*cx <= 0)
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{
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return 0;
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}
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if (*cy <= 0)
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{
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return 0;
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}
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*x = *x + dx;
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*y = *y + dy;
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if (srcx != 0)
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{
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*srcx = *srcx + dx;
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}
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if (srcy != 0)
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{
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*srcy = *srcy + dy;
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}
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return 1;
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}
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/*****************************************************************************/
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void
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bs_rect(int x, int y, int cx, int cy, int colour, int rop)
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{
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int i;
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int j;
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unsigned char * p8;
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unsigned short * p16;
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unsigned int * p32;
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if (bs_warp_coords(&x, &y, &cx, &cy, 0, 0))
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{
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if (rop == 0) /* black */
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{
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rop = 12;
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colour = 0;
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}
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else if (rop == 15) /* white */
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{
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rop = 12;
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colour = 0xffffff;
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}
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if (rop == 12) /* copy */
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{
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if (g_bs_Bpp == 1)
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{
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for (i = 0; i < cy; i++)
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{
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p8 = (unsigned char *) get_bs_ptr(x, y + i);
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if (p8 != 0)
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{
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for (j = 0; j < cx; j++)
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{
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*p8 = colour;
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p8++;
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}
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}
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}
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}
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else if (g_bs_Bpp == 2)
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{
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for (i = 0; i < cy; i++)
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{
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p16 = (unsigned short *) get_bs_ptr(x, y + i);
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if (p16 != 0)
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{
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for (j = 0; j < cx; j++)
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{
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*p16 = colour;
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p16++;
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}
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}
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}
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}
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else
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{
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for (i = 0; i < cy; i++)
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{
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p32 = (unsigned int *) get_bs_ptr(x, y + i);
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if (p32 != 0)
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{
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for (j = 0; j < cx; j++)
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{
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*p32 = colour;
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p32++;
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}
|
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}
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}
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}
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}
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else /* slow */
|
||||
{
|
||||
for (i = 0; i < cy; i++)
|
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{
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for (j = 0; j < cx; j++)
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{
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bs_set_pixel(j + x, i + y, colour, rop, 0);
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}
|
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}
|
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}
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}
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}
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/*****************************************************************************/
|
||||
void
|
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bs_screenblt(int rop, int x, int y, int cx, int cy,
|
||||
int srcx, int srcy)
|
||||
{
|
||||
int p;
|
||||
int i;
|
||||
int j;
|
||||
char * src;
|
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char * dst;
|
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|
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if (bs_warp_coords(&x, &y, &cx, &cy, &srcx, &srcy))
|
||||
{
|
||||
if (rop == 12) /* copy */
|
||||
{
|
||||
if (srcy < y) /* copy down - bottom to top */
|
||||
{
|
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for (i = cy - 1; i >= 0; i--)
|
||||
{
|
||||
src = get_bs_ptr(srcx, srcy + i);
|
||||
dst = get_bs_ptr(x, y + i);
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if (src != 0 && dst != 0)
|
||||
{
|
||||
bs_copy_mem(dst, src, cx * g_bs_Bpp);
|
||||
}
|
||||
}
|
||||
}
|
||||
else if (srcy > y || srcx > x) /* copy up or left - top to bottom */
|
||||
{
|
||||
for (i = 0; i < cy; i++)
|
||||
{
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src = get_bs_ptr(srcx, srcy + i);
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||||
dst = get_bs_ptr(x, y + i);
|
||||
if (src != 0 && dst != 0)
|
||||
{
|
||||
bs_copy_mem(dst, src, cx * g_bs_Bpp);
|
||||
}
|
||||
}
|
||||
}
|
||||
else /* copy straight right */
|
||||
{
|
||||
for (i = 0; i < cy; i++)
|
||||
{
|
||||
src = get_bs_ptr(srcx, srcy + i);
|
||||
dst = get_bs_ptr(x, y + i);
|
||||
if (src != 0 && dst != 0)
|
||||
{
|
||||
bs_copy_memb(dst, src, cx * g_bs_Bpp);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
else /* slow */
|
||||
{
|
||||
if (srcy < y) /* copy down - bottom to top */
|
||||
{
|
||||
for (i = cy - 1; i >= 0; i--)
|
||||
{
|
||||
for (j = 0; j < cx; j++)
|
||||
{
|
||||
p = bs_get_pixel(srcx + j, srcy + i);
|
||||
bs_set_pixel(x + j, y + i, p, rop, 0);
|
||||
}
|
||||
}
|
||||
}
|
||||
else if (srcy > y || srcx > x) /* copy up or left - top to bottom */
|
||||
{
|
||||
for (i = 0; i < cy; i++)
|
||||
{
|
||||
for (j = 0; j < cx; j++)
|
||||
{
|
||||
p = bs_get_pixel(srcx + j, srcy + i);
|
||||
bs_set_pixel(x + j, y + i, p, rop, 0);
|
||||
}
|
||||
}
|
||||
}
|
||||
else /* copy straight right */
|
||||
{
|
||||
for (i = 0; i < cy; i++)
|
||||
{
|
||||
for (j = cx - 1; j >= 0; j--)
|
||||
{
|
||||
p = bs_get_pixel(srcx + j, srcy + i);
|
||||
bs_set_pixel(x + j, y + i, p, rop, 0);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/*****************************************************************************/
|
||||
int
|
||||
bs_memblt(int opcode, int x, int y, int cx, int cy,
|
||||
void * srcdata, int srcwidth, int srcheight,
|
||||
int srcx, int srcy)
|
||||
{
|
||||
int i;
|
||||
int j;
|
||||
int p;
|
||||
int rv;
|
||||
char * dst;
|
||||
char * src;
|
||||
|
||||
rv = 1;
|
||||
if (bs_warp_coords(&x, &y, &cx, &cy, &srcx, &srcy))
|
||||
{
|
||||
if (opcode == 12) /* copy */
|
||||
{
|
||||
rv = 0;
|
||||
if (g_bs_Bpp == 1)
|
||||
{
|
||||
src = (char *) (((unsigned char *) srcdata) + srcy * srcwidth + srcx);
|
||||
}
|
||||
else if (g_bs_Bpp == 2)
|
||||
{
|
||||
src = (char *) (((unsigned short *) srcdata) + srcy * srcwidth + srcx);
|
||||
}
|
||||
else
|
||||
{
|
||||
src = (char *) (((unsigned int *) srcdata) + srcy * srcwidth + srcx);
|
||||
}
|
||||
for (i = 0; i < cy; i++)
|
||||
{
|
||||
dst = get_bs_ptr(x, y + i);
|
||||
if (dst != 0)
|
||||
{
|
||||
if (!rv)
|
||||
{
|
||||
if (memcmp(dst, src, cx * g_bs_Bpp) != 0)
|
||||
{
|
||||
rv = 1;
|
||||
}
|
||||
}
|
||||
bs_copy_mem(dst, src, cx * g_bs_Bpp);
|
||||
src += srcwidth * g_bs_Bpp;
|
||||
}
|
||||
}
|
||||
}
|
||||
else /* slow */
|
||||
{
|
||||
if (g_bs_Bpp == 1)
|
||||
{
|
||||
for (i = 0; i < cy; i++)
|
||||
{
|
||||
for (j = 0; j < cx; j++)
|
||||
{
|
||||
p = *(((unsigned char *) srcdata) +
|
||||
((i + srcy) * srcwidth + (j + srcx)));
|
||||
bs_set_pixel(x + j, y + i, p, opcode, 0);
|
||||
}
|
||||
}
|
||||
}
|
||||
else if (g_bs_Bpp == 2)
|
||||
{
|
||||
for (i = 0; i < cy; i++)
|
||||
{
|
||||
for (j = 0; j < cx; j++)
|
||||
{
|
||||
p = *(((unsigned short *) srcdata) +
|
||||
((i + srcy) * srcwidth + (j + srcx)));
|
||||
bs_set_pixel(x + j, y + i, p, opcode, 0);
|
||||
}
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
for (i = 0; i < cy; i++)
|
||||
{
|
||||
for (j = 0; j < cx; j++)
|
||||
{
|
||||
p = *(((unsigned int *) srcdata) +
|
||||
((i + srcy) * srcwidth + (j + srcx)));
|
||||
bs_set_pixel(x + j, y + i, p, opcode, 0);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
return rv;
|
||||
}
|
||||
|
||||
/*****************************************************************************/
|
||||
void
|
||||
bs_draw_glyph(int x, int y, char * glyph_data, int glyph_width,
|
||||
int glyph_height, int fgcolour)
|
||||
{
|
||||
int i;
|
||||
int j;
|
||||
|
||||
for (i = 0; i < glyph_height; i++)
|
||||
{
|
||||
for (j = 0; j < glyph_width; j++)
|
||||
{
|
||||
if (bs_is_pixel_on(glyph_data, j, i, glyph_width, 8))
|
||||
{
|
||||
bs_set_pixel(x + j, y + i, fgcolour, 12, 1);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/*****************************************************************************/
|
||||
/* Bresenham's line drawing algorithm */
|
||||
void
|
||||
bs_line(int opcode, int startx, int starty, int endx, int endy,
|
||||
int pen_width, int pen_style, int pen_colour)
|
||||
{
|
||||
int dx;
|
||||
int dy;
|
||||
int incx;
|
||||
int incy;
|
||||
int dpr;
|
||||
int dpru;
|
||||
int p;
|
||||
|
||||
if (startx > endx)
|
||||
{
|
||||
dx = startx - endx;
|
||||
incx = -1;
|
||||
}
|
||||
else
|
||||
{
|
||||
dx = endx - startx;
|
||||
incx = 1;
|
||||
}
|
||||
if (starty > endy)
|
||||
{
|
||||
dy = starty - endy;
|
||||
incy = -1;
|
||||
}
|
||||
else
|
||||
{
|
||||
dy = endy - starty;
|
||||
incy = 1;
|
||||
}
|
||||
if (dx >= dy)
|
||||
{
|
||||
dpr = dy << 1;
|
||||
dpru = dpr - (dx << 1);
|
||||
p = dpr - dx;
|
||||
for (; dx >= 0; dx--)
|
||||
{
|
||||
if (startx != endx || starty != endy)
|
||||
{
|
||||
bs_set_pixel(startx, starty, pen_colour, opcode, 1);
|
||||
}
|
||||
if (p > 0)
|
||||
{
|
||||
startx += incx;
|
||||
starty += incy;
|
||||
p += dpru;
|
||||
}
|
||||
else
|
||||
{
|
||||
startx += incx;
|
||||
p += dpr;
|
||||
}
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
dpr = dx << 1;
|
||||
dpru = dpr - (dy << 1);
|
||||
p = dpr - dy;
|
||||
for (; dy >= 0; dy--)
|
||||
{
|
||||
if (startx != endx || starty != endy)
|
||||
{
|
||||
bs_set_pixel(startx, starty, pen_colour, opcode, 1);
|
||||
}
|
||||
if (p > 0)
|
||||
{
|
||||
startx += incx;
|
||||
starty += incy;
|
||||
p += dpru;
|
||||
}
|
||||
else
|
||||
{
|
||||
starty += incy;
|
||||
p += dpr;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/*****************************************************************************/
|
||||
void
|
||||
bs_patblt(int opcode, int x, int y, int cx, int cy,
|
||||
int brush_style, char * brush_pattern,
|
||||
int brush_x_org, int brush_y_org,
|
||||
int bgcolour, int fgcolour)
|
||||
{
|
||||
int i;
|
||||
int j;
|
||||
char ipattern[8];
|
||||
char * b;
|
||||
|
||||
b = 0;
|
||||
switch (brush_style)
|
||||
{
|
||||
case 0:
|
||||
bs_rect(x, y, cx, cy, fgcolour, opcode);
|
||||
break;
|
||||
case 2: /* Hatch */
|
||||
b = g_hatch_patterns + brush_pattern[0] * 8;
|
||||
break;
|
||||
case 3:
|
||||
for (i = 0; i < 8; i++)
|
||||
{
|
||||
ipattern[i] = ~brush_pattern[7 - i];
|
||||
}
|
||||
b = ipattern;
|
||||
break;
|
||||
}
|
||||
if (b != 0)
|
||||
{
|
||||
for (i = 0; i < cy; i++)
|
||||
{
|
||||
for (j = 0; j < cx; j++)
|
||||
{
|
||||
if (bs_is_pixel_on(b, (x + j + brush_x_org) % 8,
|
||||
(y + i + brush_y_org) % 8, 8, 1))
|
||||
{
|
||||
bs_set_pixel(x + j, y + i, fgcolour, opcode, 1);
|
||||
}
|
||||
else
|
||||
{
|
||||
bs_set_pixel(x + j, y + i, bgcolour, opcode, 1);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
/*****************************************************************************/
|
||||
void
|
||||
bs_copy_box(char * dst, int x, int y, int cx, int cy, int line_size)
|
||||
{
|
||||
char * src;
|
||||
int i;
|
||||
|
||||
/* shouldn't happen */
|
||||
if (cx < 1 || cy < 1)
|
||||
{
|
||||
return;
|
||||
}
|
||||
/* nothing to draw, memset and leave */
|
||||
if (x + cx < 0 || y + cy < 0 || x >= g_width || y >= g_height)
|
||||
{
|
||||
memset(dst, 0, cx * cy * g_bs_Bpp);
|
||||
return;
|
||||
}
|
||||
/* check if it goes over an edge */
|
||||
if (x < 0 || y < 0 || x + cx > g_width || y + cy > g_height)
|
||||
{
|
||||
memset(dst, 0, cx * cy * g_bs_Bpp);
|
||||
if (x < 0)
|
||||
{
|
||||
cx += x;
|
||||
dst += -x * g_bs_Bpp;
|
||||
x = 0;
|
||||
}
|
||||
if (x + cx > g_width)
|
||||
{
|
||||
cx = g_width - x;
|
||||
}
|
||||
for (i = 0; i < cy; i++)
|
||||
{
|
||||
src = get_bs_ptr(x, y + i);
|
||||
if (src != 0)
|
||||
{
|
||||
bs_copy_mem(dst, src, cx * g_bs_Bpp);
|
||||
}
|
||||
dst += line_size;
|
||||
}
|
||||
}
|
||||
else /* whole box is within */
|
||||
{
|
||||
for (i = 0; i < cy; i++)
|
||||
{
|
||||
src = get_bs_ptr(x, y + i);
|
||||
if (src != 0)
|
||||
{
|
||||
bs_copy_mem(dst, src, cx * g_bs_Bpp);
|
||||
}
|
||||
dst += line_size;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -1,49 +0,0 @@
|
|||
/* -*- c-basic-offset: 8 -*-
|
||||
rdesktop: A Remote Desktop Protocol client.
|
||||
Generics backingstore operations
|
||||
Copyright (C) Jay Sorg 2005-2006
|
||||
|
||||
This program is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program; if not, write to the Free Software
|
||||
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*/
|
||||
|
||||
int bs_get_pixel(int x, int y);
|
||||
void bs_set_pixel(int x, int y, int pixel, int rop, int use_clip);
|
||||
int bs_do_rop(int rop, int src, int dst);
|
||||
void bs_init(void);
|
||||
void bs_exit(void);
|
||||
void bs_set_clip(int x, int y, int cx, int cy);
|
||||
void bs_reset_clip(void);
|
||||
void bs_set_pixel_on(char * data, int x, int y, int width, int bpp,
|
||||
int pixel);
|
||||
int bs_is_pixel_on(char * data, int x, int y, int width, int bpp);
|
||||
void bs_copy_mem(char * d, char * s, int n);
|
||||
void bs_copy_memb(char * d, char * s, int n);
|
||||
int bs_warp_coords(int * x, int * y, int * cx, int * cy,
|
||||
int * srcx, int * srcy);
|
||||
void bs_rect(int x, int y, int cx, int cy, int colour, int rop);
|
||||
void bs_screenblt(int opcode, int x, int y, int cx, int cy,
|
||||
int srcx, int srcy);
|
||||
int bs_memblt(int opcode, int x, int y, int cx, int cy,
|
||||
void * srcdata, int srcwidth, int srcheight,
|
||||
int srcx, int srcy);
|
||||
void bs_copy_box(char * dst, int x, int y, int cx, int cy, int line_size);
|
||||
void bs_draw_glyph(int x, int y, char * glyph_data, int glyph_width,
|
||||
int glyph_height, int fgcolour);
|
||||
void bs_line(int opcode, int startx, int starty, int endx, int endy,
|
||||
int pen_width, int pen_style, int pen_colour);
|
||||
void bs_patblt(int opcode, int x, int y, int cx, int cy,
|
||||
int brush_style, char * brush_pattern,
|
||||
int brush_x_org, int brush_y_org,
|
||||
int bgcolour, int fgcolour);
|
||||
|
|
@ -1,432 +0,0 @@
|
|||
/* -*- c-basic-offset: 8 -*-
|
||||
rdesktop: A Remote Desktop Protocol client.
|
||||
Cache routines
|
||||
Copyright (C) Matthew Chapman 1999-2005
|
||||
Copyright (C) Jeroen Meijer 2005
|
||||
|
||||
This program is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
|
||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program; if not, write to the Free Software
|
||||
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*/
|
||||
|
||||
#include "rdesktop.h"
|
||||
|
||||
/* BITMAP CACHE */
|
||||
extern int g_pstcache_fd[];
|
||||
|
||||
#define NUM_ELEMENTS(array) (sizeof(array) / sizeof(array[0]))
|
||||
#define IS_PERSISTENT(id) (g_pstcache_fd[id] > 0)
|
||||
#define TO_TOP -1
|
||||
#define NOT_SET -1
|
||||
#define IS_SET(idx) (idx >= 0)
|
||||
|
||||
/*
|
||||
* TODO: Test for optimal value of BUMP_COUNT. TO_TOP gives lowest cpu utilisation but using
|
||||
* a positive value will hopefully result in less frequently used bitmaps having a greater chance
|
||||
* of being evicted from the cache, and therby reducing the need to load bitmaps from disk.
|
||||
* (Jeroen)
|
||||
*/
|
||||
#define BUMP_COUNT 40
|
||||
|
||||
struct bmpcache_entry
|
||||
{
|
||||
RD_HBITMAP bitmap;
|
||||
sint16 previous;
|
||||
sint16 next;
|
||||
};
|
||||
|
||||
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];
|
||||
|
||||
/* Setup the bitmap cache lru/mru linked list */
|
||||
void
|
||||
cache_rebuild_bmpcache_linked_list(uint8 id, sint16 * idx, int count)
|
||||
{
|
||||
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(1);
|
||||
}
|
||||
}
|
||||
|
||||
/* Move a bitmap to a new position in the linked list. */
|
||||
void
|
||||
cache_bump_bitmap(uint8 id, uint16 idx, int bump)
|
||||
{
|
||||
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;
|
||||
}
|
||||
|
||||
/* Evict the least-recently used bitmap from the cache */
|
||||
void
|
||||
cache_evict_bitmap(uint8 id)
|
||||
{
|
||||
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=0x%x\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);
|
||||
}
|
||||
|
||||
/* Retrieve a bitmap from the cache */
|
||||
RD_HBITMAP
|
||||
cache_get_bitmap(uint8 id, uint16 idx)
|
||||
{
|
||||
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;
|
||||
}
|
||||
|
||||
/* Store a bitmap in the cache */
|
||||
void
|
||||
cache_put_bitmap(uint8 id, uint16 idx, RD_HBITMAP bitmap)
|
||||
{
|
||||
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);
|
||||
}
|
||||
}
|
||||
|
||||
/* Updates the persistent bitmap cache MRU information on exit */
|
||||
void
|
||||
cache_save_state(void)
|
||||
{
|
||||
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((uint8) id, (uint16) idx, ++t);
|
||||
idx = g_bmpcache[id][idx].next;
|
||||
}
|
||||
DEBUG_RDP5((" %d stamps written.\n", t));
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/* FONT CACHE */
|
||||
static FONTGLYPH g_fontcache[12][256];
|
||||
|
||||
/* Retrieve a glyph from the font cache */
|
||||
FONTGLYPH *
|
||||
cache_get_font(uint8 font, uint16 character)
|
||||
{
|
||||
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;
|
||||
}
|
||||
|
||||
/* Store a glyph in the font cache */
|
||||
void
|
||||
cache_put_font(uint8 font, uint16 character, uint16 offset,
|
||||
uint16 baseline, uint16 width, uint16 height, RD_HGLYPH pixmap)
|
||||
{
|
||||
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);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/* TEXT CACHE */
|
||||
static DATABLOB g_textcache[256];
|
||||
|
||||
/* Retrieve a text item from the cache */
|
||||
DATABLOB *
|
||||
cache_get_text(uint8 cache_id)
|
||||
{
|
||||
DATABLOB *text;
|
||||
|
||||
text = &g_textcache[cache_id];
|
||||
return text;
|
||||
}
|
||||
|
||||
/* Store a text item in the cache */
|
||||
void
|
||||
cache_put_text(uint8 cache_id, void *data, int length)
|
||||
{
|
||||
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);
|
||||
}
|
||||
|
||||
|
||||
/* DESKTOP CACHE */
|
||||
static uint8 g_deskcache[0x38400 * 4];
|
||||
|
||||
/* Retrieve desktop data from the cache */
|
||||
uint8 *
|
||||
cache_get_desktop(uint32 offset, int cx, int cy, int bytes_per_pixel)
|
||||
{
|
||||
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;
|
||||
}
|
||||
|
||||
/* Store desktop data in the cache */
|
||||
void
|
||||
cache_put_desktop(uint32 offset, int cx, int cy, int scanline, int bytes_per_pixel, uint8 * data)
|
||||
{
|
||||
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);
|
||||
}
|
||||
}
|
||||
|
||||
|
||||
/* CURSOR CACHE */
|
||||
static RD_HCURSOR g_cursorcache[0x20];
|
||||
|
||||
/* Retrieve cursor from cache */
|
||||
RD_HCURSOR
|
||||
cache_get_cursor(uint16 cache_idx)
|
||||
{
|
||||
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;
|
||||
}
|
||||
|
||||
/* Store cursor in cache */
|
||||
void
|
||||
cache_put_cursor(uint16 cache_idx, RD_HCURSOR cursor)
|
||||
{
|
||||
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);
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue