+++ /dev/null
-/* $XConsortium: set_spcs.c,v 1.6 94/02/10 10:18:23 gildea Exp $ */
-
-/*
-
-Copyright 1989-1991, Bitstream Inc., Cambridge, MA.
-You are hereby granted permission under all Bitstream propriety rights to
-use, copy, modify, sublicense, sell, and redistribute the Bitstream Speedo
-software and the Bitstream Charter outline font for any purpose and without
-restrictions; provided, that this notice is left intact on all copies of such
-software or font and that Bitstream's trademark is acknowledged as shown below
-on all unmodified copies of such font.
-
-BITSTREAM CHARTER is a registered trademark of Bitstream Inc.
-
-
-BITSTREAM INC. DISCLAIMS ANY AND ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
-WITHOUT LIMITATION THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
-PARTICULAR PURPOSE. BITSTREAM SHALL NOT BE LIABLE FOR ANY DIRECT OR INDIRECT
-DAMAGES, INCLUDING BUT NOT LIMITED TO LOST PROFITS, LOST DATA, OR ANY OTHER
-INCIDENTAL OR CONSEQUENTIAL DAMAGES, ARISING OUT OF OR IN ANY WAY CONNECTED
-WITH THE SPEEDO SOFTWARE OR THE BITSTREAM CHARTER OUTLINE FONT.
-
-*/
-
-
-/*************************** S E T _ S P C S . C *****************************
- * *
- * This module implements all sp_set_specs() functionality. *
- * *
- ****************************************************************************/
-#define SET_SPCS
-#include "spdo_prv.h" /* General definitions for Speedo */
-#include "keys.h"
-
-#define DEBUG 0
-
-#if DEBUG
-#include <stdio.h>
-#define SHOW(X) printf("X = %d\n", X)
-#else
-#define SHOW(X)
-#endif
-
-/***** GLOBAL VARIABLES *****/
-
-/***** GLOBAL FUNCTIONS *****/
-
-/****** EXTERNAL VARIABLES *****/
-
-/***** STATIC VARIABLES *****/
-
-
-/****** STATIC FUNCTIONS *****/
-
-#if PROTOS_AVAIL
-static boolean sp_setup_consts(PROTO_DECL2 fix15 xmin, fix15 xmax,
- fix15 ymin, fix15 ymax);
-static void sp_setup_tcb(PROTO_DECL2 tcb_t GLOBALFAR *ptcb);
-static fix15 sp_setup_mult(PROTO_DECL2 fix31 input_mult);
-static fix31 sp_setup_offset(PROTO_DECL2 fix31 input_offset);
-#else
-static void sp_setup_tcb(); /* Set up transformation control block */
-static fix15 sp_setup_mult(); /* Convert mult to internal form */
-static fix31 sp_setup_offset(); /* Convert offset to internal form */
-static boolean sp_setup_consts(); /* Set up scaling constants */
-#endif
-
-
-\f
-FUNCTION boolean set_specs(specsarg)
-GDECL
-specs_t STACKFAR *specsarg; /* Bundle of conversion specifications */
-/*
- * Called by host software to set character generation specifications
- */
-{
-ufix8 FONTFAR *pointer; /* Pointer to font data */
-fix31 offcd; /* Offset to start of character directory */
-fix31 ofcns; /* Offset to start of constraint data */
-fix31 cd_size; /* Size of character directory */
-fix31 no_bytes_min; /* Min number of bytes in font buffer */
-ufix16 font_id; /* Font ID */
-ufix16 private_off; /* offset to private header */
-fix15 xmin; /* Minimum X ORU value in font */
-fix15 xmax; /* Maximum X ORU value in font */
-fix15 ymin; /* Minimum Y ORU value in font */
-fix15 ymax; /* Maximum Y ORU value in font */
-
-sp_globals.specs_valid = FALSE; /* Flag specs not valid */
-
-sp_globals.specs = *specsarg; /* copy specs structure into sp_globals */
-sp_globals.pspecs = &sp_globals.specs;
-sp_globals.font = *sp_globals.pspecs->pfont;
-sp_globals.pfont = &sp_globals.font;
-sp_globals.font_org = sp_globals.font.org;
-
-if (read_word_u(sp_globals.font_org + FH_FMVER + 4) != 0x0d0a)
- {
- report_error(4); /* Font format error */
- return FALSE;
- }
-if (read_word_u(sp_globals.font_org + FH_FMVER + 6) != 0x0000)
- {
- report_error(4); /* Font format error */
- return FALSE;
- }
-
-if (get_cust_no(*specsarg->pfont) == 0)
- {
- sp_globals.key32 = 0;
- sp_globals.key4 = 0;
- sp_globals.key6 = 0;
- sp_globals.key7 = 0;
- sp_globals.key8 = 0;
- }
-else
- {
- sp_globals.key32 = (KEY3 << 8) | KEY2;
- sp_globals.key4 = KEY4;
- sp_globals.key6 = KEY6;
- sp_globals.key7 = KEY7;
- sp_globals.key8 = KEY8;
- }
-
-
-sp_globals.no_chars_avail = read_word_u(sp_globals.font_org + FH_NCHRF);
-
-/* Read sp_globals.orus per em from font header */
-sp_globals.orus_per_em = read_word_u(sp_globals.font_org + FH_ORUPM);
-
-/* compute address of private header */
-private_off = read_word_u(sp_globals.font_org + FH_HEDSZ);
-sp_globals.hdr2_org = sp_globals.font_org + private_off;
-
-/* set metric resolution if specified, default to outline res otherwise */
-if (private_off > EXP_FH_METRES)
- {
- sp_globals.metric_resolution = read_word_u(sp_globals.font_org + EXP_FH_METRES);
- }
-else
- {
- sp_globals.metric_resolution = sp_globals.orus_per_em;
- }
-
-#if INCL_METRICS
-sp_globals.kern.tkorg = sp_globals.font_org + read_long(sp_globals.hdr2_org + FH_OFFTK);
-sp_globals.kern.pkorg = sp_globals.font_org + read_long(sp_globals.hdr2_org + FH_OFFPK);
-sp_globals.kern.no_tracks = read_word_u(sp_globals.font_org + FH_NKTKS);
-sp_globals.kern.no_pairs = read_word_u(sp_globals.font_org + FH_NKPRS);
-#endif
-
-offcd = read_long(sp_globals.hdr2_org + FH_OFFCD); /* Read offset to character directory */
-ofcns = read_long(sp_globals.hdr2_org + FH_OFCNS); /* Read offset to constraint data */
-cd_size = ofcns - offcd;
-if ((((sp_globals.no_chars_avail << 1) + 3) != cd_size) &&
- (((sp_globals.no_chars_avail * 3) + 4) != cd_size))
- {
- report_error(4); /* Font format error */
- return FALSE;
- }
-
-#if INCL_LCD /* Dynamic character data load suppoorted? */
-#if INCL_METRICS
-no_bytes_min = read_long(sp_globals.hdr2_org + FH_OCHRD); /* Offset to character data */
-#else /* Dynamic character data load not supported? */
-no_bytes_min = read_long(sp_globals.hdr2_org + FH_OFFTK); /* Offset to track kerning data */
-#endif
-#else /* Dynamic character data load not supported? */
-no_bytes_min = read_long(sp_globals.hdr2_org + FH_NBYTE); /* Offset to EOF + 1 */
-#endif
-
-sp_globals.font_buff_size = sp_globals.pfont->no_bytes;
-if (sp_globals.font_buff_size < no_bytes_min) /* Minimum data not loaded? */
- {
- report_error(1); /* Insufficient font data loaded */
- return FALSE;
- }
-
-sp_globals.pchar_dir = sp_globals.font_org + offcd;
-sp_globals.first_char_idx = read_word_u(sp_globals.font_org + FH_FCHRF);
-
-/* Register font name with sp_globals.constraint mechanism */
-#if INCL_RULES
-font_id = read_word_u(sp_globals.font_org + FH_FNTID);
-if (!(sp_globals.constr.font_id_valid) || (sp_globals.constr.font_id != font_id))
- {
- sp_globals.constr.font_id = font_id;
- sp_globals.constr.font_id_valid = TRUE;
- sp_globals.constr.data_valid = FALSE;
- }
-sp_globals.constr.org = sp_globals.font_org + ofcns;
-sp_globals.constr.active = ((sp_globals.pspecs->flags & CONSTR_OFF) == 0);
-#endif
-
-/* Set up sliding point constants */
-/* Set pixel shift to accomodate largest transformed pixel value */
-xmin = read_word_u(sp_globals.font_org + FH_FXMIN);
-xmax = read_word_u(sp_globals.font_org + FH_FXMAX);
-ymin = read_word_u(sp_globals.font_org + FH_FYMIN);
-ymax = read_word_u(sp_globals.font_org + FH_FYMAX);
-
-if (!sp_setup_consts(xmin,xmax,ymin,ymax))
- {
- report_error(3); /* Requested specs out of range */
- return FALSE;
- }
-#if INCL_ISW
-/* save the value of the max x oru that the fixed point constants are based on*/
-sp_globals.isw_xmax = xmax;
-#endif
-
-/* Setup transformation control block */
-sp_setup_tcb(&sp_globals.tcb0);
-
-
-/* Select output module */
-sp_globals.output_mode = sp_globals.pspecs->flags & 0x0007;
-
-#if INCL_USEROUT
-if (!init_userout(sp_globals.pspecs))
-#endif
-
-switch (sp_globals.output_mode)
- {
-#if INCL_BLACK
-case MODE_BLACK: /* Output mode 0 (Black writer) */
- sp_globals.init_out = sp_init_black;
- sp_globals.begin_char = sp_begin_char_black;
- sp_globals.begin_sub_char = sp_begin_sub_char_out;
- sp_globals.begin_contour = sp_begin_contour_black;
- sp_globals.curve = sp_curve_out;
- sp_globals.line = sp_line_black;
- sp_globals.end_contour = sp_end_contour_out;
- sp_globals.end_sub_char = sp_end_sub_char_out;
- sp_globals.end_char = sp_end_char_black;
- break;
-#endif
-
-#if INCL_SCREEN
-case MODE_SCREEN: /* Output mode 1 (Screen writer) */
- sp_globals.init_out = sp_init_screen;
- sp_globals.begin_char = sp_begin_char_screen;
- sp_globals.begin_sub_char = sp_begin_sub_char_out;
- sp_globals.begin_contour = sp_begin_contour_screen;
- sp_globals.curve = sp_curve_screen;
- sp_globals.line = sp_line_screen;
- sp_globals.end_contour = sp_end_contour_screen;
- sp_globals.end_sub_char = sp_end_sub_char_out;
- sp_globals.end_char = sp_end_char_screen;
- break;
-#endif
-
-#if INCL_OUTLINE
-case MODE_OUTLINE: /* Output mode 2 (Vector) */
- sp_globals.init_out = sp_init_outline;
- sp_globals.begin_char = sp_begin_char_outline;
- sp_globals.begin_sub_char = sp_begin_sub_char_outline;
- sp_globals.begin_contour = sp_begin_contour_outline;
- sp_globals.curve = sp_curve_outline;
- sp_globals.line = sp_line_outline;
- sp_globals.end_contour = sp_end_contour_outline;
- sp_globals.end_sub_char = sp_end_sub_char_outline;
- sp_globals.end_char = sp_end_char_outline;
- break;
-#endif
-
-#if INCL_2D
-case MODE_2D: /* Output mode 3 */
- sp_globals.init_out = sp_init_2d;
- sp_globals.begin_char = sp_begin_char_2d;
- sp_globals.begin_sub_char = sp_begin_sub_char_out;
- sp_globals.begin_contour = sp_begin_contour_2d;
- sp_globals.curve = sp_curve_out;
- sp_globals.line = sp_line_2d;
- sp_globals.end_contour = sp_end_contour_out;
- sp_globals.end_sub_char = sp_end_sub_char_out;
- sp_globals.end_char = sp_end_char_2d;
- break;
-#endif
-
-default:
- report_error(8); /* Unsupported mode requested */
- return FALSE;
- }
-
- if (!fn_init_out(sp_globals.pspecs))
- {
- report_error(5);
- return FALSE;
- }
-
-
-sp_globals.curves_out = sp_globals.pspecs->flags & CURVES_OUT;
-
-if (sp_globals.pspecs->flags & BOGUS_MODE) /* Linear transformation requested? */
- {
- sp_globals.tcb0.xtype = sp_globals.tcb0.ytype = 4;
- }
-else /* Intelligent transformation requested? */
- {
-#if INCL_RULES
-#else
- report_error(7); /* Rules requested; not supported */
- return FALSE;
-#endif
- }
-
-if ((sp_globals.pspecs->flags & SQUEEZE_LEFT) ||
- (sp_globals.pspecs->flags & SQUEEZE_RIGHT) ||
- (sp_globals.pspecs->flags & SQUEEZE_TOP) ||
- (sp_globals.pspecs->flags & SQUEEZE_BOTTOM) )
- {
-#if (INCL_SQUEEZING)
-#else
- report_error(11);
- return FALSE;
-#endif
- }
-
-if ((sp_globals.pspecs->flags & CLIP_LEFT) ||
- (sp_globals.pspecs->flags & CLIP_RIGHT) ||
- (sp_globals.pspecs->flags & CLIP_TOP) ||
- (sp_globals.pspecs->flags & CLIP_BOTTOM) )
- {
-#if (INCL_CLIPPING)
-#else
- report_error(11);
- return FALSE;
-#endif
- }
-
-sp_globals.specs_valid = TRUE;
-return TRUE;
-}
-
-\f
-
-#if INCL_MULTIDEV
-#if INCL_BLACK || INCL_SCREEN || INCL_2D
-FUNCTION boolean set_bitmap_device(bfuncs,size)
-GDECL
-bitmap_t *bfuncs;
-ufix16 size;
-{
-
-if (size != sizeof(sp_globals.bitmap_device))
- return FALSE;
-
-sp_globals.bitmap_device = *bfuncs;
-sp_globals.bitmap_device_set = TRUE;
-}
-#endif
-
-#if INCL_OUTLINE
-FUNCTION boolean set_outline_device(ofuncs,size)
-GDECL
-outline_t *ofuncs;
-ufix16 size;
-{
-
-if (size != sizeof(sp_globals.outline_device))
- return FALSE;
-
-sp_globals.outline_device = *ofuncs;
-sp_globals.outline_device_set = TRUE;
-}
-#endif
-#endif
-
-\f
-#ifdef old
-FUNCTION boolean sp_setup_consts(xmin, xmax, ymin, ymax)
-#else
-static FUNCTION boolean sp_setup_consts(xmin, xmax, ymin, ymax)
-#endif
-GDECL
-fix15 xmin; /* Minimum X ORU value in font */
-fix15 xmax; /* Maximum X ORU value in font */
-fix15 ymin; /* Minimum Y ORU value in font */
-fix15 ymax; /* Maximum Y ORU value in font */
-/*
- * Sets the following constants used for fixed point arithmetic:
- * sp_globals.multshift multipliers and products; range is 14 to 8
- * sp_globals.pixshift pixels: range is 0 to 8
- * sp_globals.mpshift shift from product to sub-pixels (sp_globals.multshift - sp_globals.pixshift)
- * sp_globals.multrnd rounding for products
- * sp_globals.pixrnd rounding for pixels
- * sp_globals.mprnd rounding for sub-pixels
- * sp_globals.onepix 1 pixel in shifted pixel units
- * sp_globals.pixfix mask to eliminate fractional bits of shifted pixels
- * sp_globals.depth_adj curve splitting depth adjustment
- * Returns FALSE if specs are out of range
- */
-{
-fix31 mult; /* Successive multiplier values */
-ufix32 num; /* Numerator of largest multiplier value */
-ufix32 numcopy; /* Copy of numerator */
-ufix32 denom; /* Denominator of largest multiplier value */
-ufix32 denomcopy; /* Copy of denominator */
-ufix32 pix_max; /* Maximum pixel rounding error */
-fix31 xmult; /* Coefficient of X oru value in transformation */
-fix31 ymult; /* Coefficient of Y oru value in transformation */
-fix31 offset; /* Constant in transformation */
-fix15 i; /* Loop counter */
-fix15 x, y; /* Successive corners of bounding box in ORUs */
-fix31 pixval; /* Successive pixel values multiplied by orus per em */
-fix15 xx, yy; /* Bounding box corner that produces max pixel value */
-
-/* Determine numerator and denominator of largest multiplier value */
-mult = sp_globals.pspecs->xxmult >> 16;
-if (mult < 0)
- mult = -mult;
-num = mult;
-
-mult = sp_globals.pspecs->xymult >> 16;
-if (mult < 0)
- mult = -mult;
-if (mult > num)
- num = mult;
-
-mult = sp_globals.pspecs->yxmult >> 16;
-if (mult < 0)
- mult = -mult;
-if (mult > num)
- num = mult;
-
-mult = sp_globals.pspecs->yymult >> 16;
-if (mult < 0)
- mult = -mult;
-if (mult > num)
- num = mult;
-num++; /* Max absolute pixels per em (rounded up) */
-denom = (ufix32)sp_globals.orus_per_em;
-
-/* Set curve splitting depth adjustment to accomodate largest multiplier value */
-sp_globals.depth_adj = 0; /* 0 = 0.5 pel, 1 = 0.13 pel, 2 = 0.04 pel accuracy */
-denomcopy = denom;
-/* The following two occurances of a strange method of shifting twice by 1
- are intentional and should not be changed to a single shift by 2.
- It prevents MicroSoft C 5.1 from generating functions calls to do the shift.
- Worse, using the REENTRANT_ALLOC option in conjunction with the /AC compiler
- option, the function appears to be called incorrectly, causing depth_adj to always
- be set to -7, causing very angular characters. */
-
-while ((num > denomcopy) && (sp_globals.depth_adj < 5)) /* > 1, 4, 16, ... pixels per oru? */
- {
- denomcopy <<= 1;
- denomcopy <<= 1;
- sp_globals.depth_adj++; /* Add 1, 2, 3, ... to depth adjustment */
- }
-numcopy = num << 2;
-while ((numcopy <= denom) && (sp_globals.depth_adj > -4)) /* <= 1/4, 1/16, 1/64 pix per oru? */
- {
- numcopy <<= 1;
- numcopy <<= 1;
- sp_globals.depth_adj--; /* Subtract 1, 2, 3, ... from depth adjustment */
- }
-SHOW(sp_globals.depth_adj);
-
-/* Set multiplier shift to accomodate largest multiplier value */
-sp_globals.multshift = 14;
-numcopy = num;
-while (numcopy >= denom) /* More than 1, 2, 4, ... pix per oru? */
- {
- numcopy >>= 1;
- sp_globals.multshift--; /* sp_globals.multshift is 13, 12, 11, ... */
- }
-
-sp_globals.multrnd = ((fix31)1 << sp_globals.multshift) >> 1;
-SHOW(sp_globals.multshift);
-
-
-pix_max = (ufix32)( 0xffff & read_word_u(sp_globals.hdr2_org + FH_PIXMX));
-
-num = 0;
-xmult = ((sp_globals.pspecs->xxmult >> 16) + 1) >> 1;
-ymult = ((sp_globals.pspecs->xymult >> 16) + 1) >> 1;
-offset = ((sp_globals.pspecs->xoffset >> 16) + 1) >> 1;
-for (i = 0; i < 8; i++)
- {
- if (i == 4)
- {
- xmult = ((sp_globals.pspecs->yxmult >> 16) + 1) >> 1;
- ymult = ((sp_globals.pspecs->yymult >> 16) + 1) >> 1;
- offset = ((sp_globals.pspecs->yoffset >> 16) + 1) >> 1;
- }
- x = (i & BIT1)? xmin: xmax;
- y = (i & BIT0)? ymin: ymax;
- pixval = (fix31)x * xmult + (fix31)y * ymult + offset * denom;
- if (pixval < 0)
- pixval = -pixval;
- if (pixval > num)
- {
- num = pixval;
- xx = x;
- yy = y;
- }
- }
-if (xx < 0)
- xx = -xx;
-if (yy < 0)
- yy = -yy;
-num += xx + yy + ((pix_max + 2) * denom);
- /* Allow (with 2:1 safety margin) for 1 pixel rounding errors in */
- /* xmult, ymult and offset values, pix_max pixel expansion */
- /* due to intelligent scaling, and */
- /* 1 pixel rounding of overall character position */
-denom = denom << 14; /* Note num is in units of half pixels times orus per em */
-
-sp_globals.pixshift = -1;
-while ((num <= denom) && (sp_globals.pixshift < 8)) /* Max pixels <= 32768, 16384, 8192, ... pixels? */
- {
- num <<= 1;
- sp_globals.pixshift++; /* sp_globals.pixshift = 0, 1, 2, ... */
- }
-if (sp_globals.pixshift < 0)
- return FALSE;
-
-SHOW(sp_globals.pixshift);
-sp_globals.poshift = 16 - sp_globals.pixshift;
-
-sp_globals.onepix = (fix15)1 << sp_globals.pixshift;
-sp_globals.pixrnd = sp_globals.onepix >> 1;
-sp_globals.pixfix = ~0 << sp_globals.pixshift;
-
-sp_globals.mpshift = sp_globals.multshift - sp_globals.pixshift;
-if (sp_globals.mpshift < 0)
- return FALSE;
-sp_globals.mprnd = ((fix31)1 << sp_globals.mpshift) >> 1;
-
-return TRUE;
-}
-\f
-#ifdef old
-FUNCTION void sp_setup_tcb(ptcb)
-#else
-static FUNCTION void sp_setup_tcb(ptcb)
-#endif
-GDECL
-tcb_t GLOBALFAR *ptcb; /* Pointer to transformation control bloxk */
-/*
- * Convert transformation coeffs to internal form
- */
-{
-
-ptcb->xxmult = sp_setup_mult(sp_globals.pspecs->xxmult);
-ptcb->xymult = sp_setup_mult(sp_globals.pspecs->xymult);
-ptcb->xoffset = sp_setup_offset(sp_globals.pspecs->xoffset);
-ptcb->yxmult = sp_setup_mult(sp_globals.pspecs->yxmult);
-ptcb->yymult = sp_setup_mult(sp_globals.pspecs->yymult);
-ptcb->yoffset = sp_setup_offset(sp_globals.pspecs->yoffset);
-
-SHOW(ptcb->xxmult);
-SHOW(ptcb->xymult);
-SHOW(ptcb->xoffset);
-SHOW(ptcb->yxmult);
-SHOW(ptcb->yymult);
-SHOW(ptcb->yoffset);
-
-type_tcb(ptcb); /* Classify transformation type */
-}
-\f
-FUNCTION static fix15 sp_setup_mult(input_mult)
-GDECL
-fix31 input_mult; /* Multiplier in input format */
-/*
- * Called by sp_setup_tcb() to convert multiplier in transformation
- * matrix from external to internal form.
- */
-{
-fix15 imshift; /* Right shift to internal format */
-fix31 imdenom; /* Divisor to internal format */
-fix31 imrnd; /* Rounding for division operation */
-
-imshift = 15 - sp_globals.multshift;
-imdenom = (fix31)sp_globals.orus_per_em << imshift;
-imrnd = imdenom >> 1;
-
-input_mult >>= 1;
-if (input_mult >= 0)
- return (fix15)((input_mult + imrnd) / imdenom);
-else
- return -(fix15)((-input_mult + imrnd) / imdenom);
-}
-\f
-FUNCTION static fix31 sp_setup_offset(input_offset)
-GDECL
-fix31 input_offset; /* Multiplier in input format */
-/*
- * Called by sp_setup_tcb() to convert offset in transformation
- * matrix from external to internal form.
- */
-{
-fix15 imshift; /* Right shift to internal format */
-fix31 imrnd; /* Rounding for right shift operation */
-
-imshift = 15 - sp_globals.multshift;
-imrnd = ((fix31)1 << imshift) >> 1;
-
-return (((input_offset >> 1) + imrnd) >> imshift) + sp_globals.mprnd;
-}
-\f
-FUNCTION void type_tcb(ptcb)
-GDECL
-tcb_t GLOBALFAR *ptcb; /* Pointer to transformation control bloxk */
-{
-fix15 x_trans_type;
-fix15 y_trans_type;
-fix15 xx_mult;
-fix15 xy_mult;
-fix15 yx_mult;
-fix15 yy_mult;
-fix15 h_pos;
-fix15 v_pos;
-fix15 x_ppo;
-fix15 y_ppo;
-fix15 x_pos;
-fix15 y_pos;
-
-/* check for mirror image transformations */
-xx_mult = ptcb->xxmult;
-xy_mult = ptcb->xymult;
-yx_mult = ptcb->yxmult;
-yy_mult = ptcb->yymult;
-
-ptcb->mirror = ((((fix31)xx_mult*(fix31)yy_mult)-
- ((fix31)xy_mult*(fix31)yx_mult)) < 0) ? -1 : 1;
-
-if (sp_globals.pspecs->flags & BOGUS_MODE) /* Linear transformation requested? */
- {
- ptcb->xtype = 4;
- ptcb->ytype = 4;
-
- ptcb->xppo = 0;
- ptcb->yppo = 0;
- ptcb->xpos = 0;
- ptcb->ypos = 0;
- }
-else /* Intelligent tranformation requested? */
- {
- h_pos = ((ptcb->xoffset >> sp_globals.mpshift) + sp_globals.pixrnd) & sp_globals.pixfix;
- v_pos = ((ptcb->yoffset >> sp_globals.mpshift) + sp_globals.pixrnd) & sp_globals.pixfix;
-
- x_trans_type = 4;
- x_ppo = 0;
- x_pos = 0;
-
- y_trans_type = 4;
- y_ppo = 0;
- y_pos = 0;
-
- if (xy_mult == 0)
- {
- if (xx_mult >= 0)
- {
- x_trans_type = 0; /* X pix is function of X orus only */
- x_ppo = xx_mult;
- x_pos = h_pos;
- }
- else
- {
- x_trans_type = 1; /* X pix is function of -X orus only */
- x_ppo = -xx_mult;
- x_pos = -h_pos;
- }
- }
-
- else if (xx_mult == 0)
- {
- if (xy_mult >= 0)
- {
- x_trans_type = 2; /* X pix is function of Y orus only */
- y_ppo = xy_mult;
- y_pos = h_pos;
- }
- else
- {
- x_trans_type = 3; /* X pix is function of -Y orus only */
- y_ppo = -xy_mult;
- y_pos = -h_pos;
- }
- }
-
- if (yx_mult == 0)
- {
- if (yy_mult >= 0)
- {
- y_trans_type = 0; /* Y pix is function of Y orus only */
- y_ppo = yy_mult;
- y_pos = v_pos;
- }
- else
- {
- y_trans_type = 1; /* Y pix is function of -Y orus only */
- y_ppo = -yy_mult;
- y_pos = -v_pos;
- }
- }
- else if (yy_mult == 0)
- {
- if (yx_mult >= 0)
- {
- y_trans_type = 2; /* Y pix is function of X orus only */
- x_ppo = yx_mult;
- x_pos = v_pos;
- }
- else
- {
- y_trans_type = 3; /* Y pix is function of -X orus only */
- x_ppo = -yx_mult;
- x_pos = -v_pos;
- }
- }
-
- ptcb->xtype = x_trans_type;
- ptcb->ytype = y_trans_type;
-
- ptcb->xppo = x_ppo;
- ptcb->yppo = y_ppo;
- ptcb->xpos = x_pos;
- ptcb->ypos = y_pos;
- }
-
-sp_globals.normal = (ptcb->xtype != 4) && (ptcb->ytype != 4);
-
-ptcb->xmode = 4;
-ptcb->ymode = 4;
-
-SHOW(ptcb->xtype);
-SHOW(ptcb->ytype);
-SHOW(ptcb->xppo);
-SHOW(ptcb->yppo);
-SHOW(ptcb->xpos);
-SHOW(ptcb->ypos);
-}
-\f
-FUNCTION fix31 read_long(pointer)
-GDECL
-ufix8 FONTFAR *pointer; /* Pointer to first byte of encrypted 3-byte integer */
-/*
- * Reads a 3-byte encrypted integer from the byte string starting at
- * the specified point.
- * Returns the decrypted value read as a signed integer.
- */
-{
-fix31 tmpfix31;
-
-tmpfix31 = (fix31)((*pointer++) ^ sp_globals.key4) << 8; /* Read middle byte */
-tmpfix31 += (fix31)(*pointer++) << 16; /* Read most significant byte */
-tmpfix31 += (fix31)((*pointer) ^ sp_globals.key6); /* Read least significant byte */
-return tmpfix31;
-}
-\f
-FUNCTION fix15 read_word_u(pointer)
-GDECL
-ufix8 FONTFAR *pointer; /* Pointer to first byte of unencrypted 2-byte integer */
-/*
- * Reads a 2-byte unencrypted integer from the byte string starting at
- * the specified point.
- * Returns the decrypted value read as a signed integer.
- */
-{
-fix15 tmpfix15;
-
-tmpfix15 = (fix15)(*pointer++) << 8; /* Read most significant byte */
-tmpfix15 += (fix15)(*pointer); /* Add least significant byte */
-return tmpfix15;
-}
-
-
projects / rdpsrv / blobdiff