--- /dev/null
+/* $XConsortium: out_util.c,v 1.2 91/05/11 09:53:35 rws 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.
+
+*/
+
+
+#define DEBUG 0
+
+/*************************** O U T _ U T I L . C *****************************
+ * *
+ * This is a utility module share by all bitmap output modules *
+ * *
+ *****************************************************************************/
+
+
+#include "spdo_prv.h" /* General definitions for Speedo */
+/* absolute value function */
+#define ABS(X) ( (X < 0) ? -X : X)
+#if INCL_BLACK || INCL_2D || INCL_SCREEN
+\f
+FUNCTION void init_char_out(Psw,Pmin,Pmax)
+GDECL
+point_t Psw, Pmin, Pmax;
+{
+sp_globals.set_width.x = (fix31)Psw.x << sp_globals.poshift;
+sp_globals.set_width.y = (fix31)Psw.y << sp_globals.poshift;
+set_first_band_out(Pmin, Pmax);
+init_intercepts_out();
+if (sp_globals.normal)
+ {
+ sp_globals.bmap_xmin = Pmin.x;
+ sp_globals.bmap_xmax = Pmax.x;
+ sp_globals.bmap_ymin = Pmin.y;
+ sp_globals.bmap_ymax = Pmax.y;
+ sp_globals.extents_running = FALSE;
+ }
+else
+ {
+ sp_globals.bmap_xmin = 32000;
+ sp_globals.bmap_xmax = -32000;
+ sp_globals.bmap_ymin = 32000;
+ sp_globals.bmap_ymax = -32000;
+ sp_globals.extents_running = TRUE;
+ }
+sp_globals.first_pass = TRUE;
+}
+\f
+FUNCTION void begin_sub_char_out(Psw, Pmin, Pmax)
+GDECL
+point_t Psw;
+point_t Pmin;
+point_t Pmax;
+/* Called at the start of each sub-character in a composite character
+ */
+{
+#if DEBUG
+printf("BEGIN_SUB_CHAR_out(%3.1f, %3.1f, %3.1f, %3.1f, %3.1f, %3.1f\n",
+ (real)Psw.x / (real)sp_globals.onepix, (real)Psw.y / (real)sp_globals.onepix,
+ (real)Pmin.x / (real)sp_globals.onepix, (real)Pmin.y / (real)sp_globals.onepix,
+ (real)Pmax.x / (real)sp_globals.onepix, (real)Pmax.y / (real)sp_globals.onepix);
+#endif
+restart_intercepts_out();
+if (!sp_globals.extents_running)
+ {
+ sp_globals.bmap_xmin = 32000;
+ sp_globals.bmap_xmax = -32000;
+ sp_globals.bmap_ymin = 32000;
+ sp_globals.bmap_ymax = -32000;
+ sp_globals.extents_running = TRUE;
+ }
+}
+\f
+FUNCTION void curve_out(P1, P2, P3,depth)
+GDECL
+point_t P1, P2, P3;
+fix15 depth;
+/* Called for each curve in the transformed character if curves out enabled
+ */
+{
+#if DEBUG
+printf("CURVE_OUT(%3.1f, %3.1f, %3.1f, %3.1f, %3.1f, %3.1f)\n",
+ (real)P1.x / (real)sp_globals.onepix, (real)P1.y / (real)sp_globals.onepix,
+ (real)P2.x / (real)sp_globals.onepix, (real)P2.y / (real)sp_globals.onepix,
+ (real)P3.x / (real)sp_globals.onepix, (real)P3.y / (real)sp_globals.onepix);
+#endif
+}
+\f
+
+
+FUNCTION void end_contour_out()
+GDECL
+/* Called after the last vector in each contour
+ */
+{
+#if DEBUG
+printf("END_CONTOUR_OUT()\n");
+#endif
+}
+\f
+
+FUNCTION void end_sub_char_out()
+GDECL
+/* Called after the last contour in each sub-character in a compound character
+ */
+{
+#if DEBUG
+printf("END_SUB_CHAR_OUT()\n");
+#endif
+}
+\f
+
+FUNCTION void init_intercepts_out()
+GDECL
+/* Called to initialize intercept storage data structure
+ */
+
+{
+fix15 i;
+fix15 no_lists;
+
+#if DEBUG
+printf(" Init intercepts (Y band from %d to %d)\n", sp_globals.y_band.band_min, sp_globals.y_band.band_max);
+if (sp_globals.x_scan_active)
+ printf(" (X band from %d to %d)\n", sp_globals.x_band.band_min, sp_globals.x_band.band_max);
+#endif
+
+sp_globals.intercept_oflo = FALSE;
+
+sp_globals.no_y_lists = sp_globals.y_band.band_max - sp_globals.y_band.band_min + 1;
+#if INCL_2D
+if (sp_globals.output_mode == MODE_2D)
+ {
+ sp_globals.no_x_lists = sp_globals.x_scan_active ?
+ sp_globals.x_band.band_max - sp_globals.x_band.band_min + 1 : 0;
+ no_lists = sp_globals.no_y_lists + sp_globals.no_x_lists;
+ }
+else
+#endif
+ no_lists = sp_globals.no_y_lists;
+
+#if INCL_2D
+sp_globals.y_band.band_floor = 0;
+sp_globals.y_band.band_ceiling = sp_globals.no_y_lists;
+#endif
+
+if (no_lists >= MAX_INTERCEPTS) /* Not enough room for list table? */
+ {
+ no_lists = sp_globals.no_y_lists = MAX_INTERCEPTS;
+ sp_globals.intercept_oflo = TRUE;
+ sp_globals.y_band.band_min = sp_globals.y_band.band_max - sp_globals.no_y_lists + 1;
+#if INCL_2D
+ sp_globals.y_band.band_array_offset = sp_globals.y_band.band_min;
+ sp_globals.y_band.band_ceiling = sp_globals.no_y_lists;
+ sp_globals.no_x_lists = 0;
+ sp_globals.x_scan_active = FALSE;
+#endif
+ }
+
+for (i = 0; i < no_lists; i++) /* For each active value... */
+ {
+#if INCL_SCREEN
+ if (sp_globals.output_mode == MODE_SCREEN)
+ sp_intercepts.inttype[i]=0;
+#endif
+ sp_intercepts.cdr[i] = 0; /* Mark each intercept list empty */
+ }
+
+sp_globals.first_offset = sp_globals.next_offset = no_lists;
+
+#if INCL_2D
+sp_globals.y_band.band_array_offset = sp_globals.y_band.band_min;
+sp_globals.x_band.band_array_offset = sp_globals.x_band.band_min - sp_globals.no_y_lists;
+sp_globals.x_band.band_floor = sp_globals.no_y_lists;
+sp_globals.x_band.band_ceiling = no_lists;
+#endif
+#if INCL_SCREEN
+sp_intercepts.inttype[sp_globals.no_y_lists-1] = END_INT;
+#endif
+
+}
+\f
+
+FUNCTION void restart_intercepts_out()
+GDECL
+
+/* Called by sp_make_char when a new sub character is started
+ * Freezes current sorted lists
+ */
+
+{
+
+#if DEBUG
+printf(" Restart intercepts:\n");
+#endif
+sp_globals.first_offset = sp_globals.next_offset;
+}
+\f
+
+
+FUNCTION void set_first_band_out(Pmin, Pmax)
+GDECL
+point_t Pmin;
+point_t Pmax;
+{
+
+sp_globals.ymin = Pmin.y;
+sp_globals.ymax = Pmax.y;
+
+sp_globals.ymin = (sp_globals.ymin - sp_globals.onepix + 1) >> sp_globals.pixshift;
+sp_globals.ymax = (sp_globals.ymax + sp_globals.onepix - 1) >> sp_globals.pixshift;
+
+#if INCL_CLIPPING
+ switch(sp_globals.tcb0.xtype)
+ {
+ case 1: /* 180 degree rotation */
+ if (sp_globals.specs.flags & CLIP_TOP)
+ {
+ sp_globals.clip_ymin = (fix31)((fix31)EM_TOP * sp_globals.tcb0.yppo + ((1<<sp_globals.multshift)/2));
+ sp_globals.clip_ymin = sp_globals.clip_ymin >> sp_globals.multshift;
+ sp_globals.clip_ymin = -1* sp_globals.clip_ymin;
+ if (sp_globals.ymin < sp_globals.clip_ymin)
+ sp_globals.ymin = sp_globals.clip_ymin;
+ }
+ if (sp_globals.specs.flags & CLIP_BOTTOM)
+ {
+ sp_globals.clip_ymax = (fix31)((fix31)(-1 * EM_BOT) * sp_globals.tcb0.yppo + ((1<<sp_globals.multshift)/2));
+ sp_globals.clip_ymax = sp_globals.clip_ymax >> sp_globals.multshift;
+ if (sp_globals.ymax > sp_globals.clip_ymax)
+ sp_globals.ymax = sp_globals.clip_ymax;
+ }
+ break;
+ case 2: /* 90 degree rotation */
+ sp_globals.clip_ymax = 0;
+ if ((sp_globals.specs.flags & CLIP_TOP) &&
+ (sp_globals.ymax > sp_globals.clip_ymax))
+ sp_globals.ymax = sp_globals.clip_ymax;
+ sp_globals.clip_ymin = ((sp_globals.set_width.y+32768L) >> 16);
+ if ((sp_globals.specs.flags & CLIP_BOTTOM) &&
+ (sp_globals.ymin < sp_globals.clip_ymin))
+ sp_globals.ymin = sp_globals.clip_ymin;
+ break;
+ case 3: /* 270 degree rotation */
+ sp_globals.clip_ymax = ((sp_globals.set_width.y+32768L) >> 16);
+ if ((sp_globals.specs.flags & CLIP_TOP) &&
+ (sp_globals.ymax > sp_globals.clip_ymax))
+ sp_globals.ymax = sp_globals.clip_ymax;
+ sp_globals.clip_ymin = 0;
+ if ((sp_globals.specs.flags & CLIP_BOTTOM) &&
+ (sp_globals.ymin < sp_globals.clip_ymin))
+ sp_globals.ymin = sp_globals.clip_ymin;
+ break;
+ default: /* this is for zero degree rotation and arbitrary rotation */
+ if (sp_globals.specs.flags & CLIP_TOP)
+ {
+ sp_globals.clip_ymax = (fix31)((fix31)EM_TOP * sp_globals.tcb0.yppo + ((1<<sp_globals.multshift)/2));
+ sp_globals.clip_ymax = sp_globals.clip_ymax >> sp_globals.multshift;
+ if (sp_globals.ymax > sp_globals.clip_ymax)
+ sp_globals.ymax = sp_globals.clip_ymax;
+ }
+ if (sp_globals.specs.flags & CLIP_BOTTOM)
+ {
+ sp_globals.clip_ymin = (fix31)((fix31)(-1 * EM_BOT) * sp_globals.tcb0.yppo + ((1<<sp_globals.multshift)/2));
+ sp_globals.clip_ymin = sp_globals.clip_ymin >> sp_globals.multshift;
+ sp_globals.clip_ymin = - sp_globals.clip_ymin;
+ if (sp_globals.ymin < sp_globals.clip_ymin)
+ sp_globals.ymin = sp_globals.clip_ymin;
+ }
+ break;
+ }
+#endif
+sp_globals.y_band.band_min = sp_globals.ymin;
+sp_globals.y_band.band_max = sp_globals.ymax - 1;
+
+sp_globals.xmin = (Pmin.x + sp_globals.pixrnd) >> sp_globals.pixshift;
+sp_globals.xmax = (Pmax.x + sp_globals.pixrnd) >> sp_globals.pixshift;
+
+
+#if INCL_2D
+sp_globals.x_band.band_min = sp_globals.xmin - 1; /* subtract one pixel of "safety margin" */
+sp_globals.x_band.band_max = sp_globals.xmax /* - 1 + 1 */; /* Add one pixel of "safety margin" */
+#endif
+}
+
+
+
+
+
+\f
+
+FUNCTION void reduce_band_size_out()
+GDECL
+{
+sp_globals.y_band.band_min = sp_globals.y_band.band_max - ((sp_globals.y_band.band_max - sp_globals.y_band.band_min) >> 1);
+#if INCL_2D
+sp_globals.y_band.band_array_offset = sp_globals.y_band.band_min;
+#endif
+}
+\f
+
+FUNCTION boolean next_band_out()
+GDECL
+{
+fix15 tmpfix15;
+
+if (sp_globals.y_band.band_min <= sp_globals.ymin)
+ return FALSE;
+tmpfix15 = sp_globals.y_band.band_max - sp_globals.y_band.band_min;
+sp_globals.y_band.band_max = sp_globals.y_band.band_min - 1;
+sp_globals.y_band.band_min = sp_globals.y_band.band_max - tmpfix15;
+if (sp_globals.y_band.band_min < sp_globals.ymin)
+ sp_globals.y_band.band_min = sp_globals.ymin;
+#if INCL_2D
+sp_globals.y_band.band_array_offset = sp_globals.y_band.band_min;
+#endif
+return TRUE;
+}
+#endif
+
projects / rdpsrv / blobdiff