src/gfx_type.h

   1 /* $Id: gfx_type.h 24111 2012-04-10 20:16:51Z rubidium $ */
   2
   3 /*
   4  * This file is part of OpenTTD.
   5  * OpenTTD 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, version 2.
   6  * OpenTTD 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.
   7  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
   8  */
   9
  10 /** @file gfx_type.h Types related to the graphics and/or input devices. */
  11
  12 #ifndef GFX_TYPE_H
  13 #define GFX_TYPE_H
  14
  15 #include "core/endian_type.hpp"
  16 #include "core/geometry_type.hpp"
  17 #include "zoom_type.h"
  18
  19 typedef uint32 SpriteID;  ///< The number of a sprite, without mapping bits and colourtables
  20 typedef uint32 PaletteID; ///< The number of the palette
  21 typedef uint32 CursorID;  ///< The number of the cursor (sprite)
  22
  23 /** Combination of a palette sprite and a 'real' sprite */
  24 struct PalSpriteID {
  25         SpriteID sprite;  ///< The 'real' sprite
  26         PaletteID pal;    ///< The palette (use \c PAL_NONE) if not needed)
  27 };
  28
  29 enum WindowKeyCodes {
  30         WKC_SHIFT = 0x8000,
  31         WKC_CTRL  = 0x4000,
  32         WKC_ALT   = 0x2000,
  33         WKC_META  = 0x1000,
  34
  35         WKC_GLOBAL_HOTKEY = 0x0800, ///< Fake keycode bit to indicate global hotkeys
  36
  37         WKC_SPECIAL_KEYS = WKC_SHIFT | WKC_CTRL | WKC_ALT | WKC_META | WKC_GLOBAL_HOTKEY,
  38
  39         /* Special ones */
  40         WKC_NONE        =  0,
  41         WKC_ESC         =  1,
  42         WKC_BACKSPACE   =  2,
  43         WKC_INSERT      =  3,
  44         WKC_DELETE      =  4,
  45
  46         WKC_PAGEUP      =  5,
  47         WKC_PAGEDOWN    =  6,
  48         WKC_END         =  7,
  49         WKC_HOME        =  8,
  50
  51         /* Arrow keys */
  52         WKC_LEFT        =  9,
  53         WKC_UP          = 10,
  54         WKC_RIGHT       = 11,
  55         WKC_DOWN        = 12,
  56
  57         /* Return & tab */
  58         WKC_RETURN      = 13,
  59         WKC_TAB         = 14,
  60
  61         /* Space */
  62         WKC_SPACE       = 32,
  63
  64         /* Function keys */
  65         WKC_F1          = 33,
  66         WKC_F2          = 34,
  67         WKC_F3          = 35,
  68         WKC_F4          = 36,
  69         WKC_F5          = 37,
  70         WKC_F6          = 38,
  71         WKC_F7          = 39,
  72         WKC_F8          = 40,
  73         WKC_F9          = 41,
  74         WKC_F10         = 42,
  75         WKC_F11         = 43,
  76         WKC_F12         = 44,
  77
  78         /* Backquote is the key left of "1"
  79          * we only store this key here, no matter what character is really mapped to it
  80          * on a particular keyboard. (US keyboard: ` and ~ ; German keyboard: ^ and °) */
  81         WKC_BACKQUOTE   = 45,
  82         WKC_PAUSE       = 46,
  83
  84         /* 0-9 are mapped to 48-57
  85          * A-Z are mapped to 65-90
  86          * a-z are mapped to 97-122 */
  87
  88         /* Numerical keyboard */
  89         WKC_NUM_DIV     = 138,
  90         WKC_NUM_MUL     = 139,
  91         WKC_NUM_MINUS   = 140,
  92         WKC_NUM_PLUS    = 141,
  93         WKC_NUM_ENTER   = 142,
  94         WKC_NUM_DECIMAL = 143,
  95
  96         /* Other keys */
  97         WKC_SLASH       = 144, ///< / Forward slash
  98         WKC_SEMICOLON   = 145, ///< ; Semicolon
  99         WKC_EQUALS      = 146, ///< = Equals
 100         WKC_L_BRACKET   = 147, ///< [ Left square bracket
 101         WKC_BACKSLASH   = 148, ///< \ Backslash
 102         WKC_R_BRACKET   = 149, ///< ] Right square bracket
 103         WKC_SINGLEQUOTE = 150, ///< ' Single quote
 104         WKC_COMMA       = 151, ///< , Comma
 105         WKC_PERIOD      = 152, ///< . Period
 106         WKC_MINUS       = 153, ///< - Minus
 107 };
 108
 109 /** A single sprite of a list of animated cursors */
 110 struct AnimCursor {
 111         static const CursorID LAST = MAX_UVALUE(CursorID);
 112         CursorID sprite;   ///< Must be set to LAST_ANIM when it is the last sprite of the loop
 113         byte display_time; ///< Amount of ticks this sprite will be shown
 114 };
 115
 116 /** Collection of variables for cursor-display and -animation */
 117 struct CursorVars {
 118         /* Logical mouse position */
 119         Point pos;                    ///< logical mouse position
 120         Point delta;                  ///< relative mouse movement in this tick
 121         int wheel;                    ///< mouse wheel movement
 122         bool fix_at;                  ///< mouse is moving, but cursor is not (used for scrolling)
 123
 124         /* We need two different vars to keep track of how far the scrollwheel moved.
 125          * OSX uses this for scrolling around the map. */
 126         int v_wheel;
 127         int h_wheel;
 128
 129         /* Mouse appearance */
 130         PalSpriteID sprite_seq[16];   ///< current image of cursor
 131         Point sprite_pos[16];         ///< relative position of individual sprites
 132         uint sprite_count;            ///< number of sprites to draw
 133         Point total_offs, total_size; ///< union of sprite properties
 134
 135         Point draw_pos, draw_size;    ///< position and size bounding-box for drawing
 136
 137         const AnimCursor *animate_list; ///< in case of animated cursor, list of frames
 138         const AnimCursor *animate_cur;  ///< in case of animated cursor, current frame
 139         uint animate_timeout;           ///< in case of animated cursor, number of ticks to show the current cursor
 140
 141         bool visible;                 ///< cursor is visible
 142         bool dirty;                   ///< the rect occupied by the mouse is dirty (redraw)
 143         bool in_window;               ///< mouse inside this window, determines drawing logic
 144
 145         /* Drag data */
 146         bool vehchain;                ///< vehicle chain is dragged
 147
 148         bool UpdateCursorPosition(int x, int y, bool queued_warp);
 149
 150 private:
 151         bool queued_warp;
 152         Point last_position;
 153 };
 154
 155 /** Data about how and where to blit pixels. */
 156 struct DrawPixelInfo {
 157         void *dst_ptr;
 158         int left, top, width, height;
 159         int pitch;
 160         ZoomLevel zoom;
 161 };
 162
 163 /** Structure to access the alpha, red, green, and blue channels from a 32 bit number. */
 164 union Colour {
 165         uint32 data; ///< Conversion of the channel information to a 32 bit number.
 166         struct {
 167 #if TTD_ENDIAN == TTD_BIG_ENDIAN
 168                 uint8 a, r, g, b; ///< colour channels in BE order
 169 #else
 170                 uint8 b, g, r, a; ///< colour channels in LE order
 171 #endif /* TTD_ENDIAN == TTD_BIG_ENDIAN */
 172         };
 173
 174         /**
 175          * Create a new colour.
 176          * @param r The channel for the red colour.
 177          * @param g The channel for the green colour.
 178          * @param b The channel for the blue colour.
 179          * @param a The channel for the alpha/transparency.
 180          */
 181         Colour(uint8 r, uint8 g, uint8 b, uint8 a = 0xFF) :
 182 #if TTD_ENDIAN == TTD_BIG_ENDIAN
 183                 a(a), r(r), g(g), b(b)
 184 #else
 185                 b(b), g(g), r(r), a(a)
 186 #endif /* TTD_ENDIAN == TTD_BIG_ENDIAN */
 187         {
 188         }
 189
 190         /**
 191          * Create a new colour.
 192          * @param The colour in the correct packed format.
 193          */
 194         Colour(uint data = 0) : data(data)
 195         {
 196         }
 197 };
 198
 199 assert_compile(sizeof(Colour) == sizeof(uint32));
 200
 201
 202 /** Available font sizes */
 203 enum FontSize {
 204         FS_NORMAL, ///< Index of the normal font in the font tables.
 205         FS_SMALL,  ///< Index of the small font in the font tables.
 206         FS_LARGE,  ///< Index of the large font in the font tables.
 207         FS_MONO,   ///< Index of the monospaced font in the font tables.
 208         FS_END,
 209
 210         FS_BEGIN = FS_NORMAL, ///< First font.
 211 };
 212 DECLARE_POSTFIX_INCREMENT(FontSize)
 213
 214 /**
 215  * Used to only draw a part of the sprite.
 216  * Draw the subsprite in the rect (sprite_x_offset + left, sprite_y_offset + top) to (sprite_x_offset + right, sprite_y_offset + bottom).
 217  * Both corners are included in the drawing area.
 218  */
 219 struct SubSprite {
 220         int left, top, right, bottom;
 221 };
 222
 223 enum Colours {
 224         COLOUR_BEGIN,
 225         COLOUR_DARK_BLUE = COLOUR_BEGIN,
 226         COLOUR_PALE_GREEN,
 227         COLOUR_PINK,
 228         COLOUR_YELLOW,
 229         COLOUR_RED,
 230         COLOUR_LIGHT_BLUE,
 231         COLOUR_GREEN,
 232         COLOUR_DARK_GREEN,
 233         COLOUR_BLUE,
 234         COLOUR_CREAM,
 235         COLOUR_MAUVE,
 236         COLOUR_PURPLE,
 237         COLOUR_ORANGE,
 238         COLOUR_BROWN,
 239         COLOUR_GREY,
 240         COLOUR_WHITE,
 241         COLOUR_END,
 242         INVALID_COLOUR = 0xFF,
 243 };
 244 template <> struct EnumPropsT<Colours> : MakeEnumPropsT<Colours, byte, COLOUR_BEGIN, COLOUR_END, INVALID_COLOUR, 4> {};
 245
 246 /** Colour of the strings, see _string_colourmap in table/string_colours.h or docs/ottd-colourtext-palette.png */
 247 enum TextColour {
 248         TC_BEGIN       = 0x00,
 249         TC_FROMSTRING  = 0x00,
 250         TC_BLUE        = 0x00,
 251         TC_SILVER      = 0x01,
 252         TC_GOLD        = 0x02,
 253         TC_RED         = 0x03,
 254         TC_PURPLE      = 0x04,
 255         TC_LIGHT_BROWN = 0x05,
 256         TC_ORANGE      = 0x06,
 257         TC_GREEN       = 0x07,
 258         TC_YELLOW      = 0x08,
 259         TC_DARK_GREEN  = 0x09,
 260         TC_CREAM       = 0x0A,
 261         TC_BROWN       = 0x0B,
 262         TC_WHITE       = 0x0C,
 263         TC_LIGHT_BLUE  = 0x0D,
 264         TC_GREY        = 0x0E,
 265         TC_DARK_BLUE   = 0x0F,
 266         TC_BLACK       = 0x10,
 267         TC_END,
 268         TC_INVALID     = 0xFF,
 269
 270         TC_IS_PALETTE_COLOUR = 0x100, ///< Colour value is already a real palette colour index, not an index of a StringColour.
 271         TC_NO_SHADE          = 0x200, ///< Do not add shading to this text colour.
 272 };
 273 DECLARE_ENUM_AS_BIT_SET(TextColour)
 274
 275 /** Defines a few values that are related to animations using palette changes */
 276 enum PaletteAnimationSizes {
 277         PALETTE_ANIM_SIZE  = 28,   ///< number of animated colours
 278         PALETTE_ANIM_START = 227,  ///< Index in  the _palettes array from which all animations are taking places (table/palettes.h)
 279 };
 280
 281 /** Define the operation GfxFillRect performs */
 282 enum FillRectMode {
 283         FILLRECT_OPAQUE,  ///< Fill rectangle with a single colour
 284         FILLRECT_CHECKER, ///< Draw only every second pixel, used for greying-out
 285         FILLRECT_RECOLOUR, ///< Apply a recolour sprite to the screen content
 286 };
 287
 288 /** Palettes OpenTTD supports. */
 289 enum PaletteType {
 290         PAL_DOS,        ///< Use the DOS palette.
 291         PAL_WINDOWS,    ///< Use the Windows palette.
 292         PAL_AUTODETECT, ///< Automatically detect the palette based on the graphics pack.
 293         MAX_PAL = 2,    ///< The number of palettes.
 294 };
 295
 296 /** Types of sprites that might be loaded */
 297 enum SpriteType {
 298         ST_NORMAL   = 0,      ///< The most basic (normal) sprite
 299         ST_MAPGEN   = 1,      ///< Special sprite for the map generator
 300         ST_FONT     = 2,      ///< A sprite used for fonts
 301         ST_RECOLOUR = 3,      ///< Recolour sprite
 302         ST_INVALID  = 4,      ///< Pseudosprite or other unusable sprite, used only internally
 303 };
 304
 305 /** The number of milliseconds per game tick. */
 306 static const uint MILLISECONDS_PER_TICK = 30;
 307
 308 /** Information about the currently used palette. */
 309 struct Palette {
 310         Colour palette[256]; ///< Current palette. Entry 0 has to be always fully transparent!
 311         int first_dirty;     ///< The first dirty element.
 312         int count_dirty;     ///< The number of dirty elements.
 313 };
 314
 315 /** Modes for 8bpp support */
 316 enum Support8bpp {
 317         S8BPP_NONE = 0, ///< No support for 8bpp by OS or hardware, force 32bpp blitters.
 318         S8BPP_SYSTEM,   ///< No 8bpp support by hardware, do not try to use 8bpp video modes or hardware palettes.
 319         S8BPP_HARDWARE, ///< Full 8bpp support by OS and hardware.
 320 };
 321
 322 #endif /* GFX_TYPE_H */