gfx.cpp

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00001 /* $Id: gfx.cpp 15431 2009-02-09 10:31:37Z rubidium $ */
00002 
00005 #include "stdafx.h"
00006 #include "gfx_func.h"
00007 #include "variables.h"
00008 #include "spritecache.h"
00009 #include "fontcache.h"
00010 #include "genworld.h"
00011 #include "zoom_func.h"
00012 #include "blitter/factory.hpp"
00013 #include "video/video_driver.hpp"
00014 #include "strings_func.h"
00015 #include "settings_type.h"
00016 #include "core/alloc_func.hpp"
00017 #include "core/sort_func.hpp"
00018 #include "landscape_type.h"
00019 #include "network/network_func.h"
00020 
00021 #include "table/palettes.h"
00022 #include "table/sprites.h"
00023 #include "table/control_codes.h"
00024 
00025 byte _dirkeys;        
00026 bool _fullscreen;
00027 CursorVars _cursor;
00028 bool _ctrl_pressed;   
00029 bool _shift_pressed;  
00030 byte _fast_forward;
00031 bool _left_button_down;     
00032 bool _left_button_clicked;  
00033 bool _right_button_down;    
00034 bool _right_button_clicked; 
00035 DrawPixelInfo _screen;
00036 bool _screen_disable_anim = false;   
00037 bool _exit_game;
00038 bool _networking;         
00039 byte _game_mode;
00040 int8 _pause_game;
00041 int _pal_first_dirty;
00042 int _pal_count_dirty;
00043 
00044 Colour _cur_palette[256];
00045 byte _stringwidth_table[FS_END][224]; 
00046 DrawPixelInfo *_cur_dpi;
00047 byte _colour_gradient[COLOUR_END][8];
00048 
00049 static void GfxMainBlitter(const Sprite *sprite, int x, int y, BlitterMode mode, const SubSprite *sub = NULL);
00050 static int ReallyDoDrawString(const char *string, int x, int y, TextColour colour, bool parse_string_also_when_clipped = false);
00051 
00052 FontSize _cur_fontsize;
00053 static FontSize _last_fontsize;
00054 static uint8 _cursor_backup[64 * 64 * 4];
00055 
00063 static Rect _invalid_rect;
00064 static const byte *_colour_remap_ptr;
00065 static byte _string_colourremap[3];
00066 
00067 enum {
00068   DIRTY_BLOCK_HEIGHT   = 8,
00069   DIRTY_BLOCK_WIDTH    = 64,
00070 };
00071 static uint _dirty_bytes_per_line = 0;
00072 static byte *_dirty_blocks = NULL;
00073 
00074 void GfxScroll(int left, int top, int width, int height, int xo, int yo)
00075 {
00076   Blitter *blitter = BlitterFactoryBase::GetCurrentBlitter();
00077 
00078   if (xo == 0 && yo == 0) return;
00079 
00080   if (_cursor.visible) UndrawMouseCursor();
00081 
00082 #ifdef ENABLE_NETWORK
00083   NetworkUndrawChatMessage();
00084 #endif /* ENABLE_NETWORK */
00085 
00086   blitter->ScrollBuffer(_screen.dst_ptr, left, top, width, height, xo, yo);
00087   /* This part of the screen is now dirty. */
00088   _video_driver->MakeDirty(left, top, width, height);
00089 }
00090 
00091 
00106 void GfxFillRect(int left, int top, int right, int bottom, int colour, FillRectMode mode)
00107 {
00108   Blitter *blitter = BlitterFactoryBase::GetCurrentBlitter();
00109   const DrawPixelInfo *dpi = _cur_dpi;
00110   void *dst;
00111   const int otop = top;
00112   const int oleft = left;
00113 
00114   if (dpi->zoom != ZOOM_LVL_NORMAL) return;
00115   if (left > right || top > bottom) return;
00116   if (right < dpi->left || left >= dpi->left + dpi->width) return;
00117   if (bottom < dpi->top || top >= dpi->top + dpi->height) return;
00118 
00119   if ( (left -= dpi->left) < 0) left = 0;
00120   right = right - dpi->left + 1;
00121   if (right > dpi->width) right = dpi->width;
00122   right -= left;
00123   assert(right > 0);
00124 
00125   if ( (top -= dpi->top) < 0) top = 0;
00126   bottom = bottom - dpi->top + 1;
00127   if (bottom > dpi->height) bottom = dpi->height;
00128   bottom -= top;
00129   assert(bottom > 0);
00130 
00131   dst = blitter->MoveTo(dpi->dst_ptr, left, top);
00132 
00133   switch (mode) {
00134     default: // FILLRECT_OPAQUE
00135       blitter->DrawRect(dst, right, bottom, (uint8)colour);
00136       break;
00137 
00138     case FILLRECT_RECOLOUR:
00139       blitter->DrawColourMappingRect(dst, right, bottom, GB(colour, 0, PALETTE_WIDTH));
00140       break;
00141 
00142     case FILLRECT_CHECKER: {
00143       byte bo = (oleft - left + dpi->left + otop - top + dpi->top) & 1;
00144       do {
00145         for (int i = (bo ^= 1); i < right; i += 2) blitter->SetPixel(dst, i, 0, (uint8)colour);
00146         dst = blitter->MoveTo(dst, 0, 1);
00147       } while (--bottom > 0);
00148       break;
00149     }
00150   }
00151 }
00152 
00153 void GfxDrawLine(int x, int y, int x2, int y2, int colour)
00154 {
00155   Blitter *blitter = BlitterFactoryBase::GetCurrentBlitter();
00156   DrawPixelInfo *dpi = _cur_dpi;
00157 
00158   x -= dpi->left;
00159   x2 -= dpi->left;
00160   y -= dpi->top;
00161   y2 -= dpi->top;
00162 
00163   /* Check clipping */
00164   if (x < 0 && x2 < 0) return;
00165   if (y < 0 && y2 < 0) return;
00166   if (x > dpi->width  && x2 > dpi->width)  return;
00167   if (y > dpi->height && y2 > dpi->height) return;
00168 
00169   blitter->DrawLine(dpi->dst_ptr, x, y, x2, y2, dpi->width, dpi->height, colour);
00170 }
00171 
00172 void GfxDrawLineUnscaled(int x, int y, int x2, int y2, int colour)
00173 {
00174   Blitter *blitter = BlitterFactoryBase::GetCurrentBlitter();
00175   DrawPixelInfo *dpi = _cur_dpi;
00176 
00177   x -= dpi->left;
00178   x2 -= dpi->left;
00179   y -= dpi->top;
00180   y2 -= dpi->top;
00181 
00182   /* Check clipping */
00183   if (x < 0 && x2 < 0) return;
00184   if (y < 0 && y2 < 0) return;
00185   if (x > dpi->width  && x2 > dpi->width)  return;
00186   if (y > dpi->height && y2 > dpi->height) return;
00187 
00188   blitter->DrawLine(dpi->dst_ptr, UnScaleByZoom(x, dpi->zoom), UnScaleByZoom(y, dpi->zoom),
00189       UnScaleByZoom(x2, dpi->zoom), UnScaleByZoom(y2, dpi->zoom),
00190       UnScaleByZoom(dpi->width, dpi->zoom), UnScaleByZoom(dpi->height, dpi->zoom), colour);
00191 }
00192 
00206 void DrawBox(int x, int y, int dx1, int dy1, int dx2, int dy2, int dx3, int dy3)
00207 {
00208   /*           ....
00209    *         ..    ....
00210    *       ..          ....
00211    *     ..                ^
00212    *   <--__(dx1,dy1)    /(dx2,dy2)
00213    *   :    --__       /   :
00214    *   :        --__ /     :
00215    *   :            *(x,y) :
00216    *   :            |      :
00217    *   :            |     ..
00218    *    ....        |(dx3,dy3)
00219    *        ....    | ..
00220    *            ....V.
00221    */
00222 
00223   static const byte colour = 255;
00224 
00225   GfxDrawLineUnscaled(x, y, x + dx1, y + dy1, colour);
00226   GfxDrawLineUnscaled(x, y, x + dx2, y + dy2, colour);
00227   GfxDrawLineUnscaled(x, y, x + dx3, y + dy3, colour);
00228 
00229   GfxDrawLineUnscaled(x + dx1, y + dy1, x + dx1 + dx2, y + dy1 + dy2, colour);
00230   GfxDrawLineUnscaled(x + dx1, y + dy1, x + dx1 + dx3, y + dy1 + dy3, colour);
00231   GfxDrawLineUnscaled(x + dx2, y + dy2, x + dx2 + dx1, y + dy2 + dy1, colour);
00232   GfxDrawLineUnscaled(x + dx2, y + dy2, x + dx2 + dx3, y + dy2 + dy3, colour);
00233   GfxDrawLineUnscaled(x + dx3, y + dy3, x + dx3 + dx1, y + dy3 + dy1, colour);
00234   GfxDrawLineUnscaled(x + dx3, y + dy3, x + dx3 + dx2, y + dy3 + dy2, colour);
00235 }
00236 
00241 static void SetColourRemap(TextColour colour)
00242 {
00243   if (colour == TC_INVALID) return;
00244 
00245   if (colour & IS_PALETTE_COLOUR) {
00246     _string_colourremap[1] = colour & ~IS_PALETTE_COLOUR;
00247     _string_colourremap[2] = (_use_palette == PAL_DOS) ? 1 : 215;
00248   } else {
00249     _string_colourremap[1] = _string_colourmap[_use_palette][colour].text;
00250     _string_colourremap[2] = _string_colourmap[_use_palette][colour].shadow;
00251   }
00252   _colour_remap_ptr = _string_colourremap;
00253 }
00254 
00255 #if !defined(WITH_ICU)
00256 static void HandleBiDiAndArabicShapes(char *text, const char *lastof) {}
00257 #else
00258 #include <unicode/ubidi.h>
00259 #include <unicode/ushape.h>
00260 
00289 static void HandleBiDiAndArabicShapes(char *buffer, const char *lastof)
00290 {
00291   UChar input_output[DRAW_STRING_BUFFER];
00292   UChar intermediate[DRAW_STRING_BUFFER];
00293 
00294   char *t = buffer;
00295   size_t length = 0;
00296   while (*t != '\0' && length < lengthof(input_output)) {
00297     WChar tmp;
00298     t += Utf8Decode(&tmp, t);
00299     input_output[length++] = tmp;
00300   }
00301   input_output[length] = 0;
00302 
00303   UErrorCode err = U_ZERO_ERROR;
00304   UBiDi *para = ubidi_openSized((int32_t)length, 0, &err);
00305   if (para == NULL) return;
00306 
00307   ubidi_setPara(para, input_output, (int32_t)length, _dynlang.text_dir == TD_RTL ? UBIDI_DEFAULT_RTL : UBIDI_DEFAULT_LTR, NULL, &err);
00308   ubidi_writeReordered(para, intermediate, (int32_t)length, 0, &err);
00309   length = u_shapeArabic(intermediate, (int32_t)length, input_output, lengthof(input_output), U_SHAPE_TEXT_DIRECTION_VISUAL_LTR | U_SHAPE_LETTERS_SHAPE, &err);
00310   ubidi_close(para);
00311 
00312   if (U_FAILURE(err)) return;
00313 
00314   t = buffer;
00315   for (size_t i = 0; i < length && t < (lastof - 4); i++) {
00316     t += Utf8Encode(t, input_output[i]);
00317   }
00318   *t = '\0';
00319 }
00320 #endif /* WITH_ICU */
00321 
00322 
00328 static int TruncateString(char *str, int maxw)
00329 {
00330   int w = 0;
00331   FontSize size = _cur_fontsize;
00332   int ddd, ddd_w;
00333 
00334   WChar c;
00335   char *ddd_pos;
00336 
00337   ddd_w = ddd = GetCharacterWidth(size, '.') * 3;
00338 
00339   for (ddd_pos = str; (c = Utf8Consume((const char **)&str)) != '\0'; ) {
00340     if (IsPrintable(c)) {
00341       w += GetCharacterWidth(size, c);
00342 
00343       if (w >= maxw) {
00344         /* string got too big... insert dotdotdot, but make sure we do not
00345          * print anything beyond the string termination character. */
00346         for (int i = 0; *ddd_pos != '\0' && i < 3; i++, ddd_pos++) *ddd_pos = '.';
00347         *ddd_pos = '\0';
00348         return ddd_w;
00349       }
00350     } else {
00351       if (c == SCC_SETX) {
00352         w = *str;
00353         str++;
00354       } else if (c == SCC_SETXY) {
00355         w = *str;
00356         str += 2;
00357       } else if (c == SCC_TINYFONT) {
00358         size = FS_SMALL;
00359         ddd = GetCharacterWidth(size, '.') * 3;
00360       } else if (c == SCC_BIGFONT) {
00361         size = FS_LARGE;
00362         ddd = GetCharacterWidth(size, '.') * 3;
00363       }
00364     }
00365 
00366     /* Remember the last position where three dots fit. */
00367     if (w + ddd < maxw) {
00368       ddd_w = w + ddd;
00369       ddd_pos = str;
00370     }
00371   }
00372 
00373   return w;
00374 }
00375 
00386 static inline int TruncateStringID(StringID src, char *dest, int maxw, const char *last)
00387 {
00388   GetString(dest, src, last);
00389   return TruncateString(dest, maxw);
00390 }
00391 
00402 int DrawString(int x, int y, StringID str, TextColour colour)
00403 {
00404   char buffer[DRAW_STRING_BUFFER];
00405 
00406   GetString(buffer, str, lastof(buffer));
00407   HandleBiDiAndArabicShapes(buffer, lastof(buffer));
00408   return ReallyDoDrawString(buffer, x, y, colour);
00409 }
00410 
00422 int DrawStringTruncated(int x, int y, StringID str, TextColour colour, uint maxw)
00423 {
00424   char buffer[DRAW_STRING_BUFFER];
00425   TruncateStringID(str, buffer, maxw, lastof(buffer));
00426   HandleBiDiAndArabicShapes(buffer, lastof(buffer));
00427   return ReallyDoDrawString(buffer, x, y, colour);
00428 }
00429 
00440 int DrawStringRightAligned(int x, int y, StringID str, TextColour colour)
00441 {
00442   char buffer[DRAW_STRING_BUFFER];
00443   int w;
00444 
00445   GetString(buffer, str, lastof(buffer));
00446   HandleBiDiAndArabicShapes(buffer, lastof(buffer));
00447 
00448   w = GetStringBoundingBox(buffer).width;
00449   ReallyDoDrawString(buffer, x - w, y, colour);
00450 
00451   return w;
00452 }
00453 
00463 void DrawStringRightAlignedTruncated(int x, int y, StringID str, TextColour colour, uint maxw)
00464 {
00465   char buffer[DRAW_STRING_BUFFER];
00466 
00467   TruncateStringID(str, buffer, maxw, lastof(buffer));
00468   HandleBiDiAndArabicShapes(buffer, lastof(buffer));
00469   ReallyDoDrawString(buffer, x - GetStringBoundingBox(buffer).width, y, colour);
00470 }
00471 
00480 void DrawStringRightAlignedUnderline(int x, int y, StringID str, TextColour colour)
00481 {
00482   int w = DrawStringRightAligned(x, y, str, colour);
00483   GfxFillRect(x - w, y + 10, x, y + 10, _string_colourremap[1]);
00484 }
00485 
00496 int DrawStringCentered(int x, int y, StringID str, TextColour colour)
00497 {
00498   char buffer[DRAW_STRING_BUFFER];
00499   int w;
00500 
00501   GetString(buffer, str, lastof(buffer));
00502   HandleBiDiAndArabicShapes(buffer, lastof(buffer));
00503 
00504   w = GetStringBoundingBox(buffer).width;
00505   ReallyDoDrawString(buffer, x - w / 2, y, colour);
00506 
00507   return w;
00508 }
00509 
00521 int DrawStringCenteredTruncated(int xl, int xr, int y, StringID str, TextColour colour)
00522 {
00523   char buffer[DRAW_STRING_BUFFER];
00524   TruncateStringID(str, buffer, xr - xl, lastof(buffer));
00525   HandleBiDiAndArabicShapes(buffer, lastof(buffer));
00526 
00527   int w = GetStringBoundingBox(buffer).width;
00528   return ReallyDoDrawString(buffer, (xl + xr - w) / 2, y, colour);
00529 }
00530 
00541 int DoDrawStringCentered(int x, int y, const char *str, TextColour colour)
00542 {
00543   char buffer[DRAW_STRING_BUFFER];
00544   strecpy(buffer, str, lastof(buffer));
00545   HandleBiDiAndArabicShapes(buffer, lastof(buffer));
00546 
00547   int w = GetStringBoundingBox(buffer).width;
00548   ReallyDoDrawString(buffer, x - w / 2, y, colour);
00549   return w;
00550 }
00551 
00560 void DrawStringCenterUnderline(int x, int y, StringID str, TextColour colour)
00561 {
00562   int w = DrawStringCentered(x, y, str, colour);
00563   GfxFillRect(x - (w >> 1), y + 10, x - (w >> 1) + w, y + 10, _string_colourremap[1]);
00564 }
00565 
00575 void DrawStringCenterUnderlineTruncated(int xl, int xr, int y, StringID str, TextColour colour)
00576 {
00577   int w = DrawStringCenteredTruncated(xl, xr, y, str, colour);
00578   GfxFillRect((xl + xr - w) / 2, y + 10, (xl + xr + w) / 2, y + 10, _string_colourremap[1]);
00579 }
00580 
00599 uint32 FormatStringLinebreaks(char *str, int maxw)
00600 {
00601   FontSize size = _cur_fontsize;
00602   int num = 0;
00603 
00604   assert(maxw > 0);
00605 
00606   for (;;) {
00607     char *last_space = NULL;
00608     int w = 0;
00609 
00610     for (;;) {
00611       WChar c = Utf8Consume((const char **)&str);
00612       /* whitespace is where we will insert the line-break */
00613       if (IsWhitespace(c)) last_space = str;
00614 
00615       if (IsPrintable(c)) {
00616         w += GetCharacterWidth(size, c);
00617         /* string is longer than maximum width so we need to decide what to
00618          * do. We can do two things:
00619          * 1. If no whitespace was found at all up until now (on this line) then
00620          *    we will truncate the string and bail out.
00621          * 2. In all other cases force a linebreak at the last seen whitespace */
00622         if (w > maxw) {
00623           if (last_space == NULL) {
00624             *Utf8PrevChar(str) = '\0';
00625             return num + (size << 16);
00626           }
00627           str = last_space;
00628           break;
00629         }
00630       } else {
00631         switch (c) {
00632           case '\0': return num + (size << 16); break;
00633           case SCC_SETX:  str++; break;
00634           case SCC_SETXY: str += 2; break;
00635           case SCC_TINYFONT: size = FS_SMALL; break;
00636           case SCC_BIGFONT:  size = FS_LARGE; break;
00637           case '\n': goto end_of_inner_loop;
00638         }
00639       }
00640     }
00641 end_of_inner_loop:
00642     /* String didn't fit on line (or a '\n' was encountered), so 'dummy' terminate
00643      * and increase linecount. We use Utf8PrevChar() as also non 1 char long
00644      * whitespace seperators are supported */
00645     num++;
00646     char *s = Utf8PrevChar(str);
00647     *s++ = '\0';
00648 
00649     /* In which case (see above) we will shift remainder to left and close the gap */
00650     if (str - s >= 1) {
00651       for (; str[-1] != '\0';) *s++ = *str++;
00652     }
00653   }
00654 }
00655 
00656 
00663 static int GetMultilineStringHeight(const char *src, int num)
00664 {
00665   int maxy = 0;
00666   int y = 0;
00667   int fh = GetCharacterHeight(_cur_fontsize);
00668 
00669   for (;;) {
00670     WChar c = Utf8Consume(&src);
00671 
00672     switch (c) {
00673       case 0:            y += fh; if (--num < 0) return maxy; break;
00674       case '\n':         y += fh;                             break;
00675       case SCC_SETX:     src++;                               break;
00676       case SCC_SETXY:    src++; y = (int)*src++;              break;
00677       case SCC_TINYFONT: fh = GetCharacterHeight(FS_SMALL);   break;
00678       case SCC_BIGFONT:  fh = GetCharacterHeight(FS_LARGE);   break;
00679       default:           maxy = max<int>(maxy, y + fh);       break;
00680     }
00681   }
00682 }
00683 
00684 
00690 int GetStringHeight(StringID str, int maxw)
00691 {
00692   char buffer[DRAW_STRING_BUFFER];
00693 
00694   GetString(buffer, str, lastof(buffer));
00695 
00696   uint32 tmp = FormatStringLinebreaks(buffer, maxw);
00697 
00698   return GetMultilineStringHeight(buffer, GB(tmp, 0, 16));
00699 }
00700 
00701 
00707 void DrawStringMultiCenter(int x, int y, StringID str, int maxw)
00708 {
00709   char buffer[DRAW_STRING_BUFFER];
00710   uint32 tmp;
00711   int num, mt;
00712   const char *src;
00713   WChar c;
00714 
00715   GetString(buffer, str, lastof(buffer));
00716 
00717   tmp = FormatStringLinebreaks(buffer, maxw);
00718   num = GB(tmp, 0, 16);
00719 
00720   mt = GetCharacterHeight((FontSize)GB(tmp, 16, 16));
00721 
00722   y -= (mt >> 1) * num;
00723 
00724   src = buffer;
00725 
00726   for (;;) {
00727     char buf2[DRAW_STRING_BUFFER];
00728     strecpy(buf2, src, lastof(buf2));
00729     HandleBiDiAndArabicShapes(buf2, lastof(buf2));
00730     int w = GetStringBoundingBox(buf2).width;
00731     ReallyDoDrawString(buf2, x - (w >> 1), y, TC_FROMSTRING, true);
00732     _cur_fontsize = _last_fontsize;
00733 
00734     for (;;) {
00735       c = Utf8Consume(&src);
00736       if (c == 0) {
00737         y += mt;
00738         if (--num < 0) {
00739           _cur_fontsize = FS_NORMAL;
00740           return;
00741         }
00742         break;
00743       } else if (c == SCC_SETX) {
00744         src++;
00745       } else if (c == SCC_SETXY) {
00746         src += 2;
00747       }
00748     }
00749   }
00750 }
00751 
00752 
00753 uint DrawStringMultiLine(int x, int y, StringID str, int maxw, int maxh)
00754 {
00755   char buffer[DRAW_STRING_BUFFER];
00756   uint32 tmp;
00757   int num, mt;
00758   uint total_height;
00759   const char *src;
00760   WChar c;
00761 
00762   GetString(buffer, str, lastof(buffer));
00763 
00764   tmp = FormatStringLinebreaks(buffer, maxw);
00765   num = GB(tmp, 0, 16);
00766 
00767   mt = GetCharacterHeight((FontSize)GB(tmp, 16, 16));
00768   total_height = (num + 1) * mt;
00769 
00770   if (maxh != -1 && (int)total_height > maxh) {
00771     /* Check there's room enough for at least one line. */
00772     if (maxh < mt) return 0;
00773 
00774     num = maxh / mt - 1;
00775     total_height = (num + 1) * mt;
00776   }
00777 
00778   src = buffer;
00779 
00780   for (;;) {
00781     char buf2[DRAW_STRING_BUFFER];
00782     strecpy(buf2, src, lastof(buf2));
00783     HandleBiDiAndArabicShapes(buf2, lastof(buf2));
00784     ReallyDoDrawString(buf2, x, y, TC_FROMSTRING, true);
00785     _cur_fontsize = _last_fontsize;
00786 
00787     for (;;) {
00788       c = Utf8Consume(&src);
00789       if (c == 0) {
00790         y += mt;
00791         if (--num < 0) {
00792           _cur_fontsize = FS_NORMAL;
00793           return total_height;
00794         }
00795         break;
00796       } else if (c == SCC_SETX) {
00797         src++;
00798       } else if (c == SCC_SETXY) {
00799         src += 2;
00800       }
00801     }
00802   }
00803 }
00804 
00812 Dimension GetStringBoundingBox(const char *str)
00813 {
00814   FontSize size = _cur_fontsize;
00815   Dimension br;
00816   int max_width;
00817   WChar c;
00818 
00819   br.width = br.height = max_width = 0;
00820   for (;;) {
00821     c = Utf8Consume(&str);
00822     if (c == 0) break;
00823     if (IsPrintable(c)) {
00824       br.width += GetCharacterWidth(size, c);
00825     } else {
00826       switch (c) {
00827         case SCC_SETX: br.width += (byte)*str++; break;
00828         case SCC_SETXY:
00829           br.width += (byte)*str++;
00830           br.height += (byte)*str++;
00831           break;
00832         case SCC_TINYFONT: size = FS_SMALL; break;
00833         case SCC_BIGFONT:  size = FS_LARGE; break;
00834         case '\n':
00835           br.height += GetCharacterHeight(size);
00836           if (br.width > max_width) max_width = br.width;
00837           br.width = 0;
00838           break;
00839       }
00840     }
00841   }
00842   br.height += GetCharacterHeight(size);
00843 
00844   br.width  = max(br.width, max_width);
00845   return br;
00846 }
00847 
00855 void DrawCharCentered(WChar c, int x, int y, TextColour colour)
00856 {
00857   SetColourRemap(colour);
00858   GfxMainBlitter(GetGlyph(FS_NORMAL, c), x - GetCharacterWidth(FS_NORMAL, c) / 2, y, BM_COLOUR_REMAP);
00859 }
00860 
00878 int DoDrawString(const char *string, int x, int y, TextColour colour, bool parse_string_also_when_clipped)
00879 {
00880   char buffer[DRAW_STRING_BUFFER];
00881   strecpy(buffer, string, lastof(buffer));
00882   HandleBiDiAndArabicShapes(buffer, lastof(buffer));
00883 
00884   return ReallyDoDrawString(buffer, x, y, colour, parse_string_also_when_clipped);
00885 }
00886 
00904 static int ReallyDoDrawString(const char *string, int x, int y, TextColour colour, bool parse_string_also_when_clipped)
00905 {
00906   DrawPixelInfo *dpi = _cur_dpi;
00907   FontSize size = _cur_fontsize;
00908   WChar c;
00909   int xo = x, yo = y;
00910 
00911   TextColour previous_colour = colour;
00912 
00913   if (!parse_string_also_when_clipped) {
00914     /* in "mode multiline", the available space have been verified. Not in regular one.
00915      * So if the string cannot be drawn, return the original start to say so.*/
00916     if (x >= dpi->left + dpi->width || y >= dpi->top + dpi->height) return x;
00917 
00918     if (colour != TC_INVALID) { // the invalid colour flag test should not  really occur.  But better be safe
00919 switch_colour:;
00920       SetColourRemap(colour);
00921     }
00922   }
00923 
00924 check_bounds:
00925   if (y + 19 <= dpi->top || dpi->top + dpi->height <= y) {
00926 skip_char:;
00927     for (;;) {
00928       c = Utf8Consume(&string);
00929       if (!IsPrintable(c)) goto skip_cont;
00930     }
00931   }
00932 
00933   for (;;) {
00934     c = Utf8Consume(&string);
00935 skip_cont:;
00936     if (c == 0) {
00937       _last_fontsize = size;
00938       return x;  // Nothing more to draw, get out. And here is the new x position
00939     }
00940     if (IsPrintable(c)) {
00941       if (x >= dpi->left + dpi->width) goto skip_char;
00942       if (x + 26 >= dpi->left) {
00943         GfxMainBlitter(GetGlyph(size, c), x, y, BM_COLOUR_REMAP);
00944       }
00945       x += GetCharacterWidth(size, c);
00946     } else if (c == '\n') { // newline = {}
00947       x = xo;  // We require a new line, so the x coordinate is reset
00948       y += GetCharacterHeight(size);
00949       goto check_bounds;
00950     } else if (c >= SCC_BLUE && c <= SCC_BLACK) { // change colour?
00951       previous_colour = colour;
00952       colour = (TextColour)(c - SCC_BLUE);
00953       goto switch_colour;
00954     } else if (c == SCC_PREVIOUS_COLOUR) { // revert to the previous colour
00955       Swap(colour, previous_colour);
00956       goto switch_colour;
00957     } else if (c == SCC_SETX) { // {SETX}
00958       x = xo + (byte)*string++;
00959     } else if (c == SCC_SETXY) {// {SETXY}
00960       x = xo + (byte)*string++;
00961       y = yo + (byte)*string++;
00962     } else if (c == SCC_TINYFONT) { // {TINYFONT}
00963       size = FS_SMALL;
00964     } else if (c == SCC_BIGFONT) { // {BIGFONT}
00965       size = FS_LARGE;
00966     } else {
00967       DEBUG(misc, 0, "[utf8] unknown string command character %d", c);
00968     }
00969   }
00970 }
00971 
00984 int DoDrawStringTruncated(const char *str, int x, int y, TextColour colour, uint maxw)
00985 {
00986   char buffer[DRAW_STRING_BUFFER];
00987   strecpy(buffer, str, lastof(buffer));
00988   TruncateString(buffer, maxw);
00989   return DoDrawString(buffer, x, y, colour);
00990 }
00991 
01000 void DrawSprite(SpriteID img, SpriteID pal, int x, int y, const SubSprite *sub)
01001 {
01002   if (HasBit(img, PALETTE_MODIFIER_TRANSPARENT)) {
01003     _colour_remap_ptr = GetNonSprite(GB(pal, 0, PALETTE_WIDTH), ST_RECOLOUR) + 1;
01004     GfxMainBlitter(GetSprite(GB(img, 0, SPRITE_WIDTH), ST_NORMAL), x, y, BM_TRANSPARENT, sub);
01005   } else if (pal != PAL_NONE) {
01006     _colour_remap_ptr = GetNonSprite(GB(pal, 0, PALETTE_WIDTH), ST_RECOLOUR) + 1;
01007     GfxMainBlitter(GetSprite(GB(img, 0, SPRITE_WIDTH), ST_NORMAL), x, y, BM_COLOUR_REMAP, sub);
01008   } else {
01009     GfxMainBlitter(GetSprite(GB(img, 0, SPRITE_WIDTH), ST_NORMAL), x, y, BM_NORMAL, sub);
01010   }
01011 }
01012 
01013 static void GfxMainBlitter(const Sprite *sprite, int x, int y, BlitterMode mode, const SubSprite *sub)
01014 {
01015   const DrawPixelInfo *dpi = _cur_dpi;
01016   Blitter::BlitterParams bp;
01017 
01018   /* Amount of pixels to clip from the source sprite */
01019   int clip_left   = (sub != NULL ? max(0,                   -sprite->x_offs + sub->left       ) : 0);
01020   int clip_top    = (sub != NULL ? max(0,                   -sprite->y_offs + sub->top        ) : 0);
01021   int clip_right  = (sub != NULL ? max(0, sprite->width  - (-sprite->x_offs + sub->right  + 1)) : 0);
01022   int clip_bottom = (sub != NULL ? max(0, sprite->height - (-sprite->y_offs + sub->bottom + 1)) : 0);
01023 
01024   if (clip_left + clip_right >= sprite->width) return;
01025   if (clip_top + clip_bottom >= sprite->height) return;
01026 
01027   /* Move to the correct offset */
01028   x += sprite->x_offs;
01029   y += sprite->y_offs;
01030 
01031   /* Copy the main data directly from the sprite */
01032   bp.sprite = sprite->data;
01033   bp.sprite_width = sprite->width;
01034   bp.sprite_height = sprite->height;
01035   bp.width = UnScaleByZoom(sprite->width - clip_left - clip_right, dpi->zoom);
01036   bp.height = UnScaleByZoom(sprite->height - clip_top - clip_bottom, dpi->zoom);
01037   bp.top = 0;
01038   bp.left = 0;
01039   bp.skip_left = UnScaleByZoomLower(clip_left, dpi->zoom);
01040   bp.skip_top = UnScaleByZoomLower(clip_top, dpi->zoom);
01041 
01042   x += ScaleByZoom(bp.skip_left, dpi->zoom);
01043   y += ScaleByZoom(bp.skip_top, dpi->zoom);
01044 
01045   bp.dst = dpi->dst_ptr;
01046   bp.pitch = dpi->pitch;
01047   bp.remap = _colour_remap_ptr;
01048 
01049   assert(sprite->width > 0);
01050   assert(sprite->height > 0);
01051 
01052   if (bp.width <= 0) return;
01053   if (bp.height <= 0) return;
01054 
01055   y -= dpi->top;
01056   /* Check for top overflow */
01057   if (y < 0) {
01058     bp.height -= -UnScaleByZoom(y, dpi->zoom);
01059     if (bp.height <= 0) return;
01060     bp.skip_top += -UnScaleByZoom(y, dpi->zoom);
01061     y = 0;
01062   } else {
01063     bp.top = UnScaleByZoom(y, dpi->zoom);
01064   }
01065 
01066   /* Check for bottom overflow */
01067   y += ScaleByZoom(bp.height, dpi->zoom) - dpi->height;
01068   if (y > 0) {
01069     bp.height -= UnScaleByZoom(y, dpi->zoom);
01070     if (bp.height <= 0) return;
01071   }
01072 
01073   x -= dpi->left;
01074   /* Check for left overflow */
01075   if (x < 0) {
01076     bp.width -= -UnScaleByZoom(x, dpi->zoom);
01077     if (bp.width <= 0) return;
01078     bp.skip_left += -UnScaleByZoom(x, dpi->zoom);
01079     x = 0;
01080   } else {
01081     bp.left = UnScaleByZoom(x, dpi->zoom);
01082   }
01083 
01084   /* Check for right overflow */
01085   x += ScaleByZoom(bp.width, dpi->zoom) - dpi->width;
01086   if (x > 0) {
01087     bp.width -= UnScaleByZoom(x, dpi->zoom);
01088     if (bp.width <= 0) return;
01089   }
01090 
01091   assert(bp.skip_left + bp.width <= UnScaleByZoom(sprite->width, dpi->zoom));
01092   assert(bp.skip_top + bp.height <= UnScaleByZoom(sprite->height, dpi->zoom));
01093 
01094   BlitterFactoryBase::GetCurrentBlitter()->Draw(&bp, mode, dpi->zoom);
01095 }
01096 
01097 void DoPaletteAnimations();
01098 
01099 void GfxInitPalettes()
01100 {
01101   memcpy(_cur_palette, _palettes[_use_palette], sizeof(_cur_palette));
01102 
01103   DoPaletteAnimations();
01104   _pal_first_dirty = 0;
01105   _pal_count_dirty = 256;
01106 }
01107 
01108 #define EXTR(p, q) (((uint16)(_palette_animation_counter * (p)) * (q)) >> 16)
01109 #define EXTR2(p, q) (((uint16)(~_palette_animation_counter * (p)) * (q)) >> 16)
01110 
01111 void DoPaletteAnimations()
01112 {
01113   Blitter *blitter = BlitterFactoryBase::GetCurrentBlitter();
01114   const Colour *s;
01115   const ExtraPaletteValues *ev = &_extra_palette_values;
01116   /* Amount of colours to be rotated.
01117    * A few more for the DOS palette, because the water colours are
01118    * 245-254 for DOS and 217-226 for Windows.  */
01119   const int colour_rotation_amount = (_use_palette == PAL_DOS) ? PALETTE_ANIM_SIZE_DOS : PALETTE_ANIM_SIZE_WIN;
01120   Colour old_val[PALETTE_ANIM_SIZE_DOS];
01121   const int oldval_size = colour_rotation_amount * sizeof(*old_val);
01122   const uint old_tc = _palette_animation_counter;
01123   uint i;
01124   uint j;
01125 
01126   if (blitter != NULL && blitter->UsePaletteAnimation() == Blitter::PALETTE_ANIMATION_NONE) {
01127     _palette_animation_counter = 0;
01128   }
01129 
01130   Colour *palette_pos = &_cur_palette[PALETTE_ANIM_SIZE_START];  // Points to where animations are taking place on the palette
01131   /* Makes a copy of the current anmation palette in old_val,
01132    * so the work on the current palette could be compared, see if there has been any changes */
01133   memcpy(old_val, palette_pos, oldval_size);
01134 
01135   /* Dark blue water */
01136   s = (_settings_game.game_creation.landscape == LT_TOYLAND) ? ev->dark_water_TOY : ev->dark_water;
01137   j = EXTR(320, 5);
01138   for (i = 0; i != 5; i++) {
01139     *palette_pos++ = s[j];
01140     j++;
01141     if (j == 5) j = 0;
01142   }
01143 
01144   /* Glittery water */
01145   s = (_settings_game.game_creation.landscape == LT_TOYLAND) ? ev->glitter_water_TOY : ev->glitter_water;
01146   j = EXTR(128, 15);
01147   for (i = 0; i != 5; i++) {
01148     *palette_pos++ = s[j];
01149     j += 3;
01150     if (j >= 15) j -= 15;
01151   }
01152 
01153   /* Fizzy Drink bubbles animation */
01154   s = ev->fizzy_drink;
01155   j = EXTR2(512, 5);
01156   for (i = 0; i != 5; i++) {
01157     *palette_pos++ = s[j];
01158     j++;
01159     if (j == 5) j = 0;
01160   }
01161 
01162   /* Oil refinery fire animation */
01163   s = ev->oil_ref;
01164   j = EXTR2(512, 7);
01165   for (i = 0; i != 7; i++) {
01166     *palette_pos++ = s[j];
01167     j++;
01168     if (j == 7) j = 0;
01169   }
01170 
01171   /* Radio tower blinking */
01172   {
01173     byte i = (_palette_animation_counter >> 1) & 0x7F;
01174     byte v;
01175 
01176     (v = 255, i < 0x3f) ||
01177     (v = 128, i < 0x4A || i >= 0x75) ||
01178     (v = 20);
01179     palette_pos->r = v;
01180     palette_pos->g = 0;
01181     palette_pos->b = 0;
01182     palette_pos++;
01183 
01184     i ^= 0x40;
01185     (v = 255, i < 0x3f) ||
01186     (v = 128, i < 0x4A || i >= 0x75) ||
01187     (v = 20);
01188     palette_pos->r = v;
01189     palette_pos->g = 0;
01190     palette_pos->b = 0;
01191     palette_pos++;
01192   }
01193 
01194   /* Handle lighthouse and stadium animation */
01195   s = ev->lighthouse;
01196   j = EXTR(256, 4);
01197   for (i = 0; i != 4; i++) {
01198     *palette_pos++ = s[j];
01199     j++;
01200     if (j == 4) j = 0;
01201   }
01202 
01203   /* Animate water for old DOS graphics */
01204   if (_use_palette == PAL_DOS) {
01205     /* Dark blue water DOS */
01206     s = (_settings_game.game_creation.landscape == LT_TOYLAND) ? ev->dark_water_TOY : ev->dark_water;
01207     j = EXTR(320, 5);
01208     for (i = 0; i != 5; i++) {
01209       *palette_pos++ = s[j];
01210       j++;
01211       if (j == 5) j = 0;
01212     }
01213 
01214     /* Glittery water DOS */
01215     s = (_settings_game.game_creation.landscape == LT_TOYLAND) ? ev->glitter_water_TOY : ev->glitter_water;
01216     j = EXTR(128, 15);
01217     for (i = 0; i != 5; i++) {
01218       *palette_pos++ = s[j];
01219       j += 3;
01220       if (j >= 15) j -= 15;
01221     }
01222   }
01223 
01224   if (blitter != NULL && blitter->UsePaletteAnimation() == Blitter::PALETTE_ANIMATION_NONE) {
01225     _palette_animation_counter = old_tc;
01226   } else {
01227     if (memcmp(old_val, &_cur_palette[PALETTE_ANIM_SIZE_START], oldval_size) != 0) {
01228       /* Did we changed anything on the palette? Seems so.  Mark it as dirty */
01229       _pal_first_dirty = PALETTE_ANIM_SIZE_START;
01230       _pal_count_dirty = colour_rotation_amount;
01231     }
01232   }
01233 }
01234 
01235 
01237 void LoadStringWidthTable()
01238 {
01239   uint i;
01240 
01241   /* Normal font */
01242   for (i = 0; i != 224; i++) {
01243     _stringwidth_table[FS_NORMAL][i] = GetGlyphWidth(FS_NORMAL, i + 32);
01244   }
01245 
01246   /* Small font */
01247   for (i = 0; i != 224; i++) {
01248     _stringwidth_table[FS_SMALL][i] = GetGlyphWidth(FS_SMALL, i + 32);
01249   }
01250 
01251   /* Large font */
01252   for (i = 0; i != 224; i++) {
01253     _stringwidth_table[FS_LARGE][i] = GetGlyphWidth(FS_LARGE, i + 32);
01254   }
01255 }
01256 
01263 byte GetCharacterWidth(FontSize size, WChar key)
01264 {
01265   /* Use _stringwidth_table cache if possible */
01266   if (key >= 32 && key < 256) return _stringwidth_table[size][key - 32];
01267 
01268   return GetGlyphWidth(size, key);
01269 }
01270 
01271 
01272 void ScreenSizeChanged()
01273 {
01274   _dirty_bytes_per_line = (_screen.width + DIRTY_BLOCK_WIDTH - 1) / DIRTY_BLOCK_WIDTH;
01275   _dirty_blocks = ReallocT<byte>(_dirty_blocks, _dirty_bytes_per_line * ((_screen.height + DIRTY_BLOCK_HEIGHT - 1) / DIRTY_BLOCK_HEIGHT));
01276 
01277   /* check the dirty rect */
01278   if (_invalid_rect.right >= _screen.width) _invalid_rect.right = _screen.width;
01279   if (_invalid_rect.bottom >= _screen.height) _invalid_rect.bottom = _screen.height;
01280 
01281   /* screen size changed and the old bitmap is invalid now, so we don't want to undraw it */
01282   _cursor.visible = false;
01283 }
01284 
01285 void UndrawMouseCursor()
01286 {
01287   if (_cursor.visible) {
01288     Blitter *blitter = BlitterFactoryBase::GetCurrentBlitter();
01289     _cursor.visible = false;
01290     blitter->CopyFromBuffer(blitter->MoveTo(_screen.dst_ptr, _cursor.draw_pos.x, _cursor.draw_pos.y), _cursor_backup, _cursor.draw_size.x, _cursor.draw_size.y);
01291     _video_driver->MakeDirty(_cursor.draw_pos.x, _cursor.draw_pos.y, _cursor.draw_size.x, _cursor.draw_size.y);
01292   }
01293 }
01294 
01295 void DrawMouseCursor()
01296 {
01297 #if defined(WINCE)
01298   /* Don't ever draw the mouse for WinCE, as we work with a stylus */
01299   return;
01300 #endif
01301 
01302   Blitter *blitter = BlitterFactoryBase::GetCurrentBlitter();
01303   int x;
01304   int y;
01305   int w;
01306   int h;
01307 
01308   /* Redraw mouse cursor but only when it's inside the window */
01309   if (!_cursor.in_window) return;
01310 
01311   /* Don't draw the mouse cursor if it's already drawn */
01312   if (_cursor.visible) {
01313     if (!_cursor.dirty) return;
01314     UndrawMouseCursor();
01315   }
01316 
01317   w = _cursor.size.x;
01318   x = _cursor.pos.x + _cursor.offs.x + _cursor.short_vehicle_offset;
01319   if (x < 0) {
01320     w += x;
01321     x = 0;
01322   }
01323   if (w > _screen.width - x) w = _screen.width - x;
01324   if (w <= 0) return;
01325   _cursor.draw_pos.x = x;
01326   _cursor.draw_size.x = w;
01327 
01328   h = _cursor.size.y;
01329   y = _cursor.pos.y + _cursor.offs.y;
01330   if (y < 0) {
01331     h += y;
01332     y = 0;
01333   }
01334   if (h > _screen.height - y) h = _screen.height - y;
01335   if (h <= 0) return;
01336   _cursor.draw_pos.y = y;
01337   _cursor.draw_size.y = h;
01338 
01339   assert(blitter->BufferSize(w, h) < (int)sizeof(_cursor_backup));
01340 
01341   /* Make backup of stuff below cursor */
01342   blitter->CopyToBuffer(blitter->MoveTo(_screen.dst_ptr, _cursor.draw_pos.x, _cursor.draw_pos.y), _cursor_backup, _cursor.draw_size.x, _cursor.draw_size.y);
01343 
01344   /* Draw cursor on screen */
01345   _cur_dpi = &_screen;
01346   DrawSprite(_cursor.sprite, _cursor.pal, _cursor.pos.x + _cursor.short_vehicle_offset, _cursor.pos.y);
01347 
01348   _video_driver->MakeDirty(_cursor.draw_pos.x, _cursor.draw_pos.y, _cursor.draw_size.x, _cursor.draw_size.y);
01349 
01350   _cursor.visible = true;
01351   _cursor.dirty = false;
01352 }
01353 
01354 void RedrawScreenRect(int left, int top, int right, int bottom)
01355 {
01356   assert(right <= _screen.width && bottom <= _screen.height);
01357   if (_cursor.visible) {
01358     if (right > _cursor.draw_pos.x &&
01359         left < _cursor.draw_pos.x + _cursor.draw_size.x &&
01360         bottom > _cursor.draw_pos.y &&
01361         top < _cursor.draw_pos.y + _cursor.draw_size.y) {
01362       UndrawMouseCursor();
01363     }
01364   }
01365 
01366 #ifdef ENABLE_NETWORK
01367   NetworkUndrawChatMessage();
01368 #endif /* ENABLE_NETWORK */
01369 
01370   DrawOverlappedWindowForAll(left, top, right, bottom);
01371 
01372   _video_driver->MakeDirty(left, top, right - left, bottom - top);
01373 }
01374 
01380 void DrawDirtyBlocks()
01381 {
01382   byte *b = _dirty_blocks;
01383   const int w = Align(_screen.width,  DIRTY_BLOCK_WIDTH);
01384   const int h = Align(_screen.height, DIRTY_BLOCK_HEIGHT);
01385   int x;
01386   int y;
01387 
01388   if (IsGeneratingWorld() && !IsGeneratingWorldReadyForPaint()) return;
01389 
01390   y = 0;
01391   do {
01392     x = 0;
01393     do {
01394       if (*b != 0) {
01395         int left;
01396         int top;
01397         int right = x + DIRTY_BLOCK_WIDTH;
01398         int bottom = y;
01399         byte *p = b;
01400         int h2;
01401 
01402         /* First try coalescing downwards */
01403         do {
01404           *p = 0;
01405           p += _dirty_bytes_per_line;
01406           bottom += DIRTY_BLOCK_HEIGHT;
01407         } while (bottom != h && *p != 0);
01408 
01409         /* Try coalescing to the right too. */
01410         h2 = (bottom - y) / DIRTY_BLOCK_HEIGHT;
01411         assert(h2 > 0);
01412         p = b;
01413 
01414         while (right != w) {
01415           byte *p2 = ++p;
01416           int h = h2;
01417           /* Check if a full line of dirty flags is set. */
01418           do {
01419             if (!*p2) goto no_more_coalesc;
01420             p2 += _dirty_bytes_per_line;
01421           } while (--h != 0);
01422 
01423           /* Wohoo, can combine it one step to the right!
01424            * Do that, and clear the bits. */
01425           right += DIRTY_BLOCK_WIDTH;
01426 
01427           h = h2;
01428           p2 = p;
01429           do {
01430             *p2 = 0;
01431             p2 += _dirty_bytes_per_line;
01432           } while (--h != 0);
01433         }
01434         no_more_coalesc:
01435 
01436         left = x;
01437         top = y;
01438 
01439         if (left   < _invalid_rect.left  ) left   = _invalid_rect.left;
01440         if (top    < _invalid_rect.top   ) top    = _invalid_rect.top;
01441         if (right  > _invalid_rect.right ) right  = _invalid_rect.right;
01442         if (bottom > _invalid_rect.bottom) bottom = _invalid_rect.bottom;
01443 
01444         if (left < right && top < bottom) {
01445           RedrawScreenRect(left, top, right, bottom);
01446         }
01447 
01448       }
01449     } while (b++, (x += DIRTY_BLOCK_WIDTH) != w);
01450   } while (b += -(w / DIRTY_BLOCK_WIDTH) + _dirty_bytes_per_line, (y += DIRTY_BLOCK_HEIGHT) != h);
01451 
01452   _invalid_rect.left = w;
01453   _invalid_rect.top = h;
01454   _invalid_rect.right = 0;
01455   _invalid_rect.bottom = 0;
01456 
01457   /* If we are generating a world, and waiting for a paint run, mark it here
01458    *  as done painting, so we can continue generating. */
01459   if (IsGeneratingWorld() && IsGeneratingWorldReadyForPaint()) {
01460     SetGeneratingWorldPaintStatus(false);
01461   }
01462 }
01463 
01479 void SetDirtyBlocks(int left, int top, int right, int bottom)
01480 {
01481   byte *b;
01482   int width;
01483   int height;
01484 
01485   if (left < 0) left = 0;
01486   if (top < 0) top = 0;
01487   if (right > _screen.width) right = _screen.width;
01488   if (bottom > _screen.height) bottom = _screen.height;
01489 
01490   if (left >= right || top >= bottom) return;
01491 
01492   if (left   < _invalid_rect.left  ) _invalid_rect.left   = left;
01493   if (top    < _invalid_rect.top   ) _invalid_rect.top    = top;
01494   if (right  > _invalid_rect.right ) _invalid_rect.right  = right;
01495   if (bottom > _invalid_rect.bottom) _invalid_rect.bottom = bottom;
01496 
01497   left /= DIRTY_BLOCK_WIDTH;
01498   top  /= DIRTY_BLOCK_HEIGHT;
01499 
01500   b = _dirty_blocks + top * _dirty_bytes_per_line + left;
01501 
01502   width  = ((right  - 1) / DIRTY_BLOCK_WIDTH)  - left + 1;
01503   height = ((bottom - 1) / DIRTY_BLOCK_HEIGHT) - top  + 1;
01504 
01505   assert(width > 0 && height > 0);
01506 
01507   do {
01508     int i = width;
01509 
01510     do b[--i] = 0xFF; while (i);
01511 
01512     b += _dirty_bytes_per_line;
01513   } while (--height != 0);
01514 }
01515 
01521 void MarkWholeScreenDirty()
01522 {
01523   SetDirtyBlocks(0, 0, _screen.width, _screen.height);
01524 }
01525 
01538 bool FillDrawPixelInfo(DrawPixelInfo *n, int left, int top, int width, int height)
01539 {
01540   Blitter *blitter = BlitterFactoryBase::GetCurrentBlitter();
01541   const DrawPixelInfo *o = _cur_dpi;
01542 
01543   n->zoom = ZOOM_LVL_NORMAL;
01544 
01545   assert(width > 0);
01546   assert(height > 0);
01547 
01548   if ((left -= o->left) < 0) {
01549     width += left;
01550     if (width <= 0) return false;
01551     n->left = -left;
01552     left = 0;
01553   } else {
01554     n->left = 0;
01555   }
01556 
01557   if (width > o->width - left) {
01558     width = o->width - left;
01559     if (width <= 0) return false;
01560   }
01561   n->width = width;
01562 
01563   if ((top -= o->top) < 0) {
01564     height += top;
01565     if (height <= 0) return false;
01566     n->top = -top;
01567     top = 0;
01568   } else {
01569     n->top = 0;
01570   }
01571 
01572   n->dst_ptr = blitter->MoveTo(o->dst_ptr, left, top);
01573   n->pitch = o->pitch;
01574 
01575   if (height > o->height - top) {
01576     height = o->height - top;
01577     if (height <= 0) return false;
01578   }
01579   n->height = height;
01580 
01581   return true;
01582 }
01583 
01584 static void SetCursorSprite(SpriteID cursor, SpriteID pal)
01585 {
01586   CursorVars *cv = &_cursor;
01587   const Sprite *p;
01588 
01589   if (cv->sprite == cursor) return;
01590 
01591   p = GetSprite(GB(cursor, 0, SPRITE_WIDTH), ST_NORMAL);
01592   cv->sprite = cursor;
01593   cv->pal    = pal;
01594   cv->size.y = p->height;
01595   cv->size.x = p->width;
01596   cv->offs.x = p->x_offs;
01597   cv->offs.y = p->y_offs;
01598 
01599   cv->dirty = true;
01600   cv->short_vehicle_offset = 0;
01601 }
01602 
01603 static void SwitchAnimatedCursor()
01604 {
01605   const AnimCursor *cur = _cursor.animate_cur;
01606 
01607   if (cur == NULL || cur->sprite == AnimCursor::LAST) cur = _cursor.animate_list;
01608 
01609   SetCursorSprite(cur->sprite, _cursor.pal);
01610 
01611   _cursor.animate_timeout = cur->display_time;
01612   _cursor.animate_cur     = cur + 1;
01613 }
01614 
01615 void CursorTick()
01616 {
01617   if (_cursor.animate_timeout != 0 && --_cursor.animate_timeout == 0)
01618     SwitchAnimatedCursor();
01619 }
01620 
01621 void SetMouseCursor(SpriteID sprite, SpriteID pal)
01622 {
01623   /* Turn off animation */
01624   _cursor.animate_timeout = 0;
01625   /* Set cursor */
01626   SetCursorSprite(sprite, pal);
01627 }
01628 
01629 void SetAnimatedMouseCursor(const AnimCursor *table)
01630 {
01631   _cursor.animate_list = table;
01632   _cursor.animate_cur = NULL;
01633   _cursor.pal = PAL_NONE;
01634   SwitchAnimatedCursor();
01635 }
01636 
01637 bool ChangeResInGame(int width, int height)
01638 {
01639   return (_screen.width == width && _screen.height == height) || _video_driver->ChangeResolution(width, height);
01640 }
01641 
01642 bool ToggleFullScreen(bool fs)
01643 {
01644   bool result = _video_driver->ToggleFullscreen(fs);
01645   if (_fullscreen != fs && _num_resolutions == 0) {
01646     DEBUG(driver, 0, "Could not find a suitable fullscreen resolution");
01647   }
01648   return result;
01649 }
01650 
01651 static int CDECL compare_res(const Dimension *pa, const Dimension *pb)
01652 {
01653   int x = pa->width - pb->width;
01654   if (x != 0) return x;
01655   return pa->height - pb->height;
01656 }
01657 
01658 void SortResolutions(int count)
01659 {
01660   QSortT(_resolutions, count, &compare_res);
01661 }

Generated on Mon Feb 16 23:12:06 2009 for openttd by  doxygen 1.5.6