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| Rev | Author | Line No. | Line |
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| 1 | pmbaty | 1 | /* |
| 2 | * Portions of this file are copyright Rebirth contributors and licensed as |
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| 3 | * described in COPYING.txt. |
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| 4 | * Portions of this file are copyright Parallax Software and licensed |
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| 5 | * according to the Parallax license below. |
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| 6 | * See COPYING.txt for license details. |
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| 7 | |||
| 8 | THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX |
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| 9 | SOFTWARE CORPORATION ("PARALLAX"). PARALLAX, IN DISTRIBUTING THE CODE TO |
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| 10 | END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A |
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| 11 | ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS |
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| 12 | IN USING, DISPLAYING, AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS |
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| 13 | SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE |
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| 14 | FREE PURPOSES. IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE |
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| 15 | CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES. THE END-USER UNDERSTANDS |
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| 16 | AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE. |
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| 17 | COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION. ALL RIGHTS RESERVED. |
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| 18 | */ |
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| 19 | |||
| 20 | /* |
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| 21 | * |
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| 22 | * Graphical routines for drawing fonts. |
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| 23 | * |
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| 24 | */ |
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| 25 | |||
| 26 | #include <algorithm> |
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| 27 | #include <memory> |
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| 28 | #include <stdexcept> |
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| 29 | #include <stdarg.h> |
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| 30 | #include <stdio.h> |
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| 31 | #include <stdlib.h> |
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| 32 | #include <string.h> |
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| 33 | #ifndef macintosh |
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| 34 | #include <fcntl.h> |
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| 35 | #endif |
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| 36 | |||
| 37 | #include "u_mem.h" |
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| 38 | #include "gr.h" |
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| 39 | #include "grdef.h" |
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| 40 | #include "dxxerror.h" |
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| 41 | #include "common/2d/bitmap.h" |
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| 42 | #include "makesig.h" |
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| 43 | #include "physfsx.h" |
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| 44 | #include "gamefont.h" |
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| 45 | #include "byteutil.h" |
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| 46 | #include "console.h" |
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| 47 | #include "config.h" |
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| 48 | #if DXX_USE_OGL |
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| 49 | #include "ogl_init.h" |
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| 50 | #endif |
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| 51 | |||
| 52 | #include "compiler-range_for.h" |
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| 53 | #include "partial_range.h" |
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| 54 | #include <array> |
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| 55 | #include <memory> |
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| 56 | |||
| 57 | static font_x_scale_float FONTSCALE_X() |
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| 58 | { |
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| 59 | return FNTScaleX.operator float(); |
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| 60 | } |
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| 61 | |||
| 62 | static auto FONTSCALE_Y(const int &y) |
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| 63 | { |
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| 64 | return font_scaled_float<'y'>(FNTScaleY * y); |
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| 65 | } |
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| 66 | |||
| 67 | #define MAX_OPEN_FONTS 50 |
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| 68 | |||
| 69 | namespace { |
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| 70 | |||
| 71 | constexpr std::integral_constant<uint8_t, 255> kerndata_terminator{}; |
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| 72 | |||
| 73 | } |
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| 74 | |||
| 75 | namespace dcx { |
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| 76 | |||
| 77 | //list of open fonts, for use (for now) for palette remapping |
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| 78 | static std::array<grs_font *, MAX_OPEN_FONTS> open_font; |
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| 79 | |||
| 80 | #define BITS_TO_BYTES(x) (((x)+7)>>3) |
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| 81 | |||
| 82 | static int gr_internal_string_clipped(grs_canvas &, const grs_font &cv_font, int x, int y, const char *s); |
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| 83 | static int gr_internal_string_clipped_m(grs_canvas &, const grs_font &cv_font, int x, int y, const char *s); |
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| 84 | |||
| 85 | static const uint8_t *find_kern_entry(const grs_font &font, const uint8_t first, const uint8_t second) |
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| 86 | { |
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| 87 | auto p = font.ft_kerndata; |
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| 88 | |||
| 89 | while (*p != kerndata_terminator) |
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| 90 | if (p[0]==first && p[1]==second) |
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| 91 | return p; |
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| 92 | else p+=3; |
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| 93 | return NULL; |
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| 94 | } |
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| 95 | |||
| 96 | //takes the character AFTER being offset into font |
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| 97 | |||
| 98 | namespace { |
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| 99 | |||
| 100 | class font_character_extent |
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| 101 | { |
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| 102 | const unsigned r; |
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| 103 | public: |
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| 104 | font_character_extent(const grs_font &cv_font) : |
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| 105 | r(cv_font.ft_maxchar - cv_font.ft_minchar) |
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| 106 | { |
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| 107 | } |
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| 108 | bool operator()(const unsigned c) const |
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| 109 | { |
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| 110 | return c <= r; |
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| 111 | } |
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| 112 | }; |
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| 113 | |||
| 114 | template <typename T> |
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| 115 | struct get_char_width_result |
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| 116 | { |
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| 117 | T width, spacing; |
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| 118 | }; |
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| 119 | |||
| 120 | /* Floating form never uses width. This specialization allows the |
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| 121 | * compiler to recognize width as dead, shortening |
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| 122 | * get_char_width<float>. |
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| 123 | */ |
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| 124 | template <> |
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| 125 | struct get_char_width_result<float> |
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| 126 | { |
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| 127 | float spacing; |
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| 128 | get_char_width_result(float, float s) : |
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| 129 | spacing(s) |
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| 130 | { |
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| 131 | } |
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| 132 | }; |
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| 133 | |||
| 134 | } |
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| 135 | |||
| 136 | //takes the character BEFORE being offset into current font |
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| 137 | template <typename T> |
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| 138 | static get_char_width_result<T> get_char_width(const grs_font &cv_font, const uint8_t c, const uint8_t c2) |
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| 139 | { |
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| 140 | const unsigned letter = c - cv_font.ft_minchar; |
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| 141 | const auto ft_flags = cv_font.ft_flags; |
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| 142 | const auto proportional = ft_flags & FT_PROPORTIONAL; |
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| 143 | |||
| 144 | const auto &&fontscale_x = FONTSCALE_X(); |
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| 145 | const auto &&INFONT = font_character_extent(cv_font); |
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| 146 | if (!INFONT(letter)) { //not in font, draw as space |
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| 147 | return {0, static_cast<T>(proportional ? fontscale_x(cv_font.ft_w) / 2 : cv_font.ft_w)}; |
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| 148 | } |
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| 149 | const T width = proportional ? fontscale_x(cv_font.ft_widths[letter]).operator float() : cv_font.ft_w; |
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| 150 | if (ft_flags & FT_KERNED) |
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| 151 | { |
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| 152 | if (!(c2==0 || c2=='\n')) { |
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| 153 | const unsigned letter2 = c2 - cv_font.ft_minchar; |
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| 154 | |||
| 155 | if (INFONT(letter2)) { |
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| 156 | const auto p = find_kern_entry(cv_font, letter, letter2); |
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| 157 | if (p) |
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| 158 | return {width, static_cast<T>(fontscale_x(p[2]))}; |
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| 159 | } |
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| 160 | } |
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| 161 | } |
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| 162 | return {width, width}; |
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| 163 | } |
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| 164 | |||
| 165 | static int get_centered_x(const grs_canvas &canvas, const grs_font &cv_font, const char *s) |
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| 166 | { |
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| 167 | float w; |
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| 168 | for (w = 0.; const char c = *s; ++s) |
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| 169 | { |
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| 170 | if (c == '\n') |
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| 171 | break; |
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| 172 | if (c <= 0x06) |
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| 173 | { |
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| 174 | if (c <= 0x03) |
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| 175 | s++; |
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| 176 | continue;//skip color codes. |
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| 177 | } |
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| 178 | w += get_char_width<float>(cv_font, c, s[1]).spacing; |
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| 179 | } |
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| 180 | |||
| 181 | return (canvas.cv_bitmap.bm_w - w) / 2; |
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| 182 | } |
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| 183 | |||
| 184 | //hack to allow color codes to be embedded in strings -MPM |
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| 185 | //note we subtract one from color, since 255 is "transparent" so it'll never be used, and 0 would otherwise end the string. |
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| 186 | //function must already have orig_color var set (or they could be passed as args...) |
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| 187 | //perhaps some sort of recursive orig_color type thing would be better, but that would be way too much trouble for little gain |
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| 188 | constexpr std::integral_constant<int, 1> gr_message_color_level{}; |
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| 189 | #define CHECK_EMBEDDED_COLORS() if ((*text_ptr >= 0x01) && (*text_ptr <= 0x02)) { \ |
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| 190 | text_ptr++; \ |
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| 191 | if (*text_ptr){ \ |
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| 192 | if (gr_message_color_level >= *(text_ptr-1)) \ |
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| 193 | canvas.cv_font_fg_color = static_cast<uint8_t>(*text_ptr); \ |
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| 194 | text_ptr++; \ |
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| 195 | } \ |
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| 196 | } \ |
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| 197 | else if (*text_ptr == 0x03) \ |
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| 198 | { \ |
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| 199 | underline = 1; \ |
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| 200 | text_ptr++; \ |
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| 201 | } \ |
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| 202 | else if ((*text_ptr >= 0x04) && (*text_ptr <= 0x06)){ \ |
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| 203 | if (gr_message_color_level >= *text_ptr - 3) \ |
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| 204 | canvas.cv_font_fg_color= static_cast<uint8_t>(orig_color); \ |
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| 205 | text_ptr++; \ |
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| 206 | } |
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| 207 | |||
| 208 | template <bool masked_draws_background> |
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| 209 | static int gr_internal_string0_template(grs_canvas &canvas, const grs_font &cv_font, const int x, int y, const char *const s) |
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| 210 | { |
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| 211 | const auto &&INFONT = font_character_extent(cv_font); |
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| 212 | const auto ft_flags = cv_font.ft_flags; |
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| 213 | const auto proportional = ft_flags & FT_PROPORTIONAL; |
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| 214 | const auto cv_font_bg_color = canvas.cv_font_bg_color; |
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| 215 | int skip_lines = 0; |
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| 216 | |||
| 217 | unsigned int VideoOffset1; |
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| 218 | |||
| 219 | //to allow easy reseting to default string color with colored strings -MPM |
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| 220 | const auto orig_color = canvas.cv_font_fg_color; |
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| 221 | VideoOffset1 = y * canvas.cv_bitmap.bm_rowsize + x; |
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| 222 | auto next_row = s; |
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| 223 | while (next_row != NULL ) |
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| 224 | { |
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| 225 | const auto text_ptr1 = next_row; |
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| 226 | next_row = NULL; |
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| 227 | |||
| 228 | if (x==0x8000) { //centered |
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| 229 | int xx = get_centered_x(canvas, cv_font, text_ptr1); |
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| 230 | VideoOffset1 = y * canvas.cv_bitmap.bm_rowsize + xx; |
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| 231 | } |
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| 232 | |||
| 233 | for (int r=0; r < cv_font.ft_h; ++r) |
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| 234 | { |
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| 235 | auto text_ptr = text_ptr1; |
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| 236 | |||
| 237 | unsigned VideoOffset = VideoOffset1; |
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| 238 | |||
| 239 | for (; const uint8_t c0 = *text_ptr; ++text_ptr) |
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| 240 | { |
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| 241 | if (c0 == '\n') |
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| 242 | { |
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| 243 | next_row = &text_ptr[1]; |
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| 244 | break; |
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| 245 | } |
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| 246 | |||
| 247 | if (c0 == CC_COLOR) |
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| 248 | { |
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| 249 | canvas.cv_font_fg_color = static_cast<uint8_t>(*++text_ptr); |
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| 250 | continue; |
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| 251 | } |
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| 252 | |||
| 253 | if (c0 == CC_LSPACING) |
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| 254 | { |
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| 255 | skip_lines = *++text_ptr - '0'; |
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| 256 | continue; |
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| 257 | } |
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| 258 | |||
| 259 | auto underline = unlikely(c0 == CC_UNDERLINE) |
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| 260 | ? ++text_ptr, r == cv_font.ft_baseline + 2 || r == cv_font.ft_baseline + 3 |
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| 261 | : 0; |
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| 262 | |||
| 263 | const uint8_t c = *text_ptr; |
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| 264 | const auto &result = get_char_width<int>(cv_font, c, text_ptr[1]); |
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| 265 | const auto &width = result.width; |
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| 266 | const auto &spacing = result.spacing; |
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| 267 | |||
| 268 | const unsigned letter = c - cv_font.ft_minchar; |
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| 269 | |||
| 270 | if constexpr (masked_draws_background) |
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| 271 | { |
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| 272 | (void)orig_color; |
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| 273 | if (!INFONT(letter)) { //not in font, draw as space |
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| 274 | VideoOffset += spacing; |
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| 275 | text_ptr++; |
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| 276 | continue; |
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| 277 | } |
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| 278 | } |
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| 279 | else |
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| 280 | { |
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| 281 | if (!INFONT(letter) || c <= 0x06) //not in font, draw as space |
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| 282 | { |
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| 283 | CHECK_EMBEDDED_COLORS() else{ |
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| 284 | VideoOffset += spacing; |
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| 285 | text_ptr++; |
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| 286 | } |
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| 287 | continue; |
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| 288 | } |
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| 289 | } |
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| 290 | |||
| 291 | if (width) |
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| 292 | { |
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| 293 | auto data = &canvas.cv_bitmap.get_bitmap_data()[VideoOffset]; |
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| 294 | const auto cv_font_fg_color = canvas.cv_font_fg_color; |
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| 295 | if (underline) |
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| 296 | { |
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| 297 | std::fill_n(data, width, cv_font_fg_color); |
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| 298 | } |
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| 299 | else |
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| 300 | { |
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| 301 | auto fp = proportional ? cv_font.ft_chars[letter] : &cv_font.ft_data[letter * BITS_TO_BYTES(width) * cv_font.ft_h]; |
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| 302 | fp += BITS_TO_BYTES(width)*r; |
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| 303 | |||
| 304 | /* Setting bits=0 is a dead store, but is necessary to |
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| 305 | * prevent -Og -Wuninitialized from issuing a bogus |
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| 306 | * warning. -Og does not see that bits_remaining=0 |
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| 307 | * guarantees that bits will be initialized from *fp before |
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| 308 | * it is read. |
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| 309 | */ |
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| 310 | uint8_t bits_remaining = 0, bits = 0; |
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| 311 | for (uint_fast32_t i = width; i--; ++data, --bits_remaining) |
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| 312 | { |
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| 313 | if (!bits_remaining) |
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| 314 | { |
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| 315 | bits = *fp++; |
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| 316 | bits_remaining = 8; |
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| 317 | } |
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| 318 | |||
| 319 | const auto bit_enabled = (bits & 0x80); |
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| 320 | bits <<= 1; |
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| 321 | if constexpr (!masked_draws_background) |
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| 322 | { |
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| 323 | if (!bit_enabled) |
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| 324 | continue; |
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| 325 | } |
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| 326 | *data = bit_enabled ? cv_font_fg_color : cv_font_bg_color; |
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| 327 | } |
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| 328 | } |
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| 329 | } |
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| 330 | VideoOffset += spacing; |
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| 331 | } |
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| 332 | VideoOffset1 += canvas.cv_bitmap.bm_rowsize; |
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| 333 | y++; |
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| 334 | } |
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| 335 | y += skip_lines; |
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| 336 | VideoOffset1 += canvas.cv_bitmap.bm_rowsize * skip_lines; |
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| 337 | skip_lines = 0; |
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| 338 | } |
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| 339 | return 0; |
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| 340 | } |
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| 341 | |||
| 342 | static int gr_internal_string0(grs_canvas &canvas, const grs_font &cv_font, const int x, const int y, const char *const s) |
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| 343 | { |
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| 344 | return gr_internal_string0_template<true>(canvas, cv_font, x, y, s); |
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| 345 | } |
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| 346 | |||
| 347 | static int gr_internal_string0m(grs_canvas &canvas, const grs_font &cv_font, const int x, const int y, const char *const s) |
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| 348 | { |
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| 349 | return gr_internal_string0_template<false>(canvas, cv_font, x, y, s); |
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| 350 | } |
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| 351 | |||
| 352 | #if !DXX_USE_OGL |
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| 353 | static int gr_internal_color_string(grs_canvas &canvas, const grs_font &cv_font, const int x, const int y, const char *const s) |
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| 354 | { |
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| 355 | //a bitmap for the character |
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| 356 | grs_bitmap char_bm = {}; |
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| 357 | char_bm.set_type(bm_mode::linear); |
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| 358 | char_bm.set_flags(BM_FLAG_TRANSPARENT); |
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| 359 | const char *text_ptr, *next_row, *text_ptr1; |
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| 360 | int letter; |
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| 361 | int xx,yy; |
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| 362 | |||
| 363 | const auto &&INFONT = font_character_extent(cv_font); |
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| 364 | char_bm.bm_h = cv_font.ft_h; //set height for chars of this font |
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| 365 | |||
| 366 | next_row = s; |
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| 367 | |||
| 368 | yy = y; |
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| 369 | |||
| 370 | const auto &&fspacy1 = FSPACY(1); |
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| 371 | while (next_row != NULL) |
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| 372 | { |
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| 373 | text_ptr1 = next_row; |
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| 374 | next_row = NULL; |
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| 375 | |||
| 376 | text_ptr = text_ptr1; |
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| 377 | |||
| 378 | xx = x; |
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| 379 | |||
| 380 | if (xx==0x8000) //centered |
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| 381 | xx = get_centered_x(canvas, cv_font, text_ptr); |
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| 382 | |||
| 383 | while (*text_ptr) |
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| 384 | { |
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| 385 | if (*text_ptr == '\n' ) |
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| 386 | { |
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| 387 | next_row = &text_ptr[1]; |
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| 388 | yy += cv_font.ft_h + fspacy1; |
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| 389 | break; |
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| 390 | } |
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| 391 | |||
| 392 | letter = static_cast<uint8_t>(*text_ptr) - cv_font.ft_minchar; |
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| 393 | |||
| 394 | const auto &result = get_char_width<int>(cv_font, text_ptr[0], text_ptr[1]); |
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| 395 | const auto &width = result.width; |
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| 396 | const auto &spacing = result.spacing; |
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| 397 | |||
| 398 | if (!INFONT(letter)) { //not in font, draw as space |
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| 399 | xx += spacing; |
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| 400 | text_ptr++; |
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| 401 | continue; |
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| 402 | } |
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| 403 | |||
| 404 | const auto fp = (cv_font.ft_flags & FT_PROPORTIONAL) |
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| 405 | ? cv_font.ft_chars[letter] |
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| 406 | : &cv_font.ft_data[letter * BITS_TO_BYTES(width) * cv_font.ft_h]; |
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| 407 | |||
| 408 | gr_init_bitmap(char_bm, bm_mode::linear, 0, 0, width, cv_font.ft_h, width, fp); |
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| 409 | gr_bitmapm(canvas, xx, yy, char_bm); |
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| 410 | |||
| 411 | xx += spacing; |
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| 412 | |||
| 413 | text_ptr++; |
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| 414 | } |
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| 415 | |||
| 416 | } |
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| 417 | return 0; |
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| 418 | } |
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| 419 | |||
| 420 | #else //OGL |
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| 421 | |||
| 422 | static int get_font_total_width(const grs_font &font) |
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| 423 | { |
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| 424 | if (font.ft_flags & FT_PROPORTIONAL) |
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| 425 | { |
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| 426 | int w=0; |
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| 427 | range_for (const auto v, unchecked_partial_range(font.ft_widths, static_cast<unsigned>(font.ft_maxchar - font.ft_minchar) + 1)) |
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| 428 | { |
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| 429 | if (v < 0) |
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| 430 | throw std::underflow_error("negative width"); |
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| 431 | w += v; |
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| 432 | } |
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| 433 | return w; |
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| 434 | }else{ |
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| 435 | return font.ft_w*(font.ft_maxchar-font.ft_minchar+1); |
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| 436 | } |
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| 437 | } |
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| 438 | |||
| 439 | static void ogl_font_choose_size(grs_font * font,int gap,int *rw,int *rh){ |
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| 440 | int nchars = font->ft_maxchar-font->ft_minchar+1; |
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| 441 | int r,x,y,nc=0,smallest=999999,smallr=-1,tries; |
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| 442 | int smallprop=10000; |
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| 443 | int w; |
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| 444 | for (int h=32;h<=256;h*=2){ |
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| 445 | // h=pow2ize(font->ft_h*rows+gap*(rows-1)); |
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| 446 | if (font->ft_h>h)continue; |
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| 447 | r=(h/(font->ft_h+gap)); |
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| 448 | w=pow2ize((get_font_total_width(*font)+(nchars-r)*gap)/r); |
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| 449 | tries=0; |
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| 450 | do { |
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| 451 | if (tries) |
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| 452 | w=pow2ize(w+1); |
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| 453 | if(tries>3){ |
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| 454 | break; |
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| 455 | } |
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| 456 | nc=0; |
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| 457 | y=0; |
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| 458 | while(y+font->ft_h<=h){ |
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| 459 | x=0; |
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| 460 | while (x<w){ |
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| 461 | if (nc==nchars) |
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| 462 | break; |
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| 463 | if (font->ft_flags & FT_PROPORTIONAL){ |
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| 464 | if (x+font->ft_widths[nc]+gap>w)break; |
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| 465 | x+=font->ft_widths[nc++]+gap; |
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| 466 | }else{ |
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| 467 | if (x+font->ft_w+gap>w)break; |
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| 468 | x+=font->ft_w+gap; |
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| 469 | nc++; |
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| 470 | } |
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| 471 | } |
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| 472 | if (nc==nchars) |
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| 473 | break; |
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| 474 | y+=font->ft_h+gap; |
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| 475 | } |
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| 476 | |||
| 477 | tries++; |
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| 478 | }while(nc!=nchars); |
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| 479 | if (nc!=nchars) |
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| 480 | continue; |
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| 481 | |||
| 482 | if (w*h==smallest){//this gives squarer sizes priority (ie, 128x128 would be better than 512*32) |
||
| 483 | if (w>=h){ |
||
| 484 | if (w/h<smallprop){ |
||
| 485 | smallprop=w/h; |
||
| 486 | smallest++;//hack |
||
| 487 | } |
||
| 488 | }else{ |
||
| 489 | if (h/w<smallprop){ |
||
| 490 | smallprop=h/w; |
||
| 491 | smallest++;//hack |
||
| 492 | } |
||
| 493 | } |
||
| 494 | } |
||
| 495 | if (w*h<smallest){ |
||
| 496 | smallr=1; |
||
| 497 | smallest=w*h; |
||
| 498 | *rw=w; |
||
| 499 | *rh=h; |
||
| 500 | } |
||
| 501 | } |
||
| 502 | if (smallr<=0) |
||
| 503 | Error("Could not fit font?\n"); |
||
| 504 | } |
||
| 505 | |||
| 506 | static void ogl_init_font(grs_font * font) |
||
| 507 | { |
||
| 508 | int oglflags = OGL_FLAG_ALPHA; |
||
| 509 | int nchars = font->ft_maxchar-font->ft_minchar+1; |
||
| 510 | int w,h,tw,th,curx=0,cury=0; |
||
| 511 | int gap=1; // x/y offset between the chars so we can filter |
||
| 512 | |||
| 513 | th = tw = 0xffff; |
||
| 514 | |||
| 515 | ogl_font_choose_size(font,gap,&tw,&th); |
||
| 516 | { |
||
| 517 | RAIIdmem<uint8_t[]> data; |
||
| 518 | const unsigned length = tw * th; |
||
| 519 | MALLOC(data, uint8_t, length); |
||
| 520 | std::fill_n(data.get(), length, TRANSPARENCY_COLOR); // map the whole data with transparency so we won't have borders if using gap |
||
| 521 | gr_init_main_bitmap(font->ft_parent_bitmap, bm_mode::linear, 0, 0, tw, th, tw, std::move(data)); |
||
| 522 | } |
||
| 523 | gr_set_transparent(font->ft_parent_bitmap, 1); |
||
| 524 | |||
| 525 | if (!(font->ft_flags & FT_COLOR)) |
||
| 526 | oglflags |= OGL_FLAG_NOCOLOR; |
||
| 527 | ogl_init_texture(*(font->ft_parent_bitmap.gltexture = ogl_get_free_texture()), tw, th, oglflags); // have to init the gltexture here so the subbitmaps will find it. |
||
| 528 | |||
| 529 | font->ft_bitmaps = std::make_unique<grs_bitmap[]>(nchars); |
||
| 530 | h=font->ft_h; |
||
| 531 | |||
| 532 | for(int i=0;i<nchars;i++) |
||
| 533 | { |
||
| 534 | if (font->ft_flags & FT_PROPORTIONAL) |
||
| 535 | w=font->ft_widths[i]; |
||
| 536 | else |
||
| 537 | w=font->ft_w; |
||
| 538 | |||
| 539 | if (w<1 || w>256) |
||
| 540 | continue; |
||
| 541 | |||
| 542 | if (curx+w+gap>tw) |
||
| 543 | { |
||
| 544 | cury+=h+gap; |
||
| 545 | curx=0; |
||
| 546 | } |
||
| 547 | |||
| 548 | if (cury+h>th) |
||
| 549 | Error("font doesn't really fit (%i/%i)?\n",i,nchars); |
||
| 550 | |||
| 551 | if (font->ft_flags & FT_COLOR) |
||
| 552 | { |
||
| 553 | const auto fp = (font->ft_flags & FT_PROPORTIONAL) |
||
| 554 | ? font->ft_chars[i] |
||
| 555 | : font->ft_data + i * w*h; |
||
| 556 | for (int y=0;y<h;y++) |
||
| 557 | { |
||
| 558 | for (int x=0;x<w;x++) |
||
| 559 | { |
||
| 560 | font->ft_parent_bitmap.get_bitmap_data()[curx+x+(cury+y)*tw] = fp[x+y*w]; |
||
| 561 | // Let's call this a HACK: |
||
| 562 | // If we filter the fonts, the sliders will be messed up as the border pixels will have an |
||
| 563 | // alpha value while filtering. So the slider bitmaps will not look "connected". |
||
| 564 | // To prevent this, duplicate the first/last pixel-row with a 1-pixel offset. |
||
| 565 | if (gap && i >= 99 && i <= 102) |
||
| 566 | { |
||
| 567 | // See which bitmaps need left/right shifts: |
||
| 568 | // 99 = SLIDER_LEFT - shift RIGHT |
||
| 569 | // 100 = SLIDER_RIGHT - shift LEFT |
||
| 570 | // 101 = SLIDER_MIDDLE - shift LEFT+RIGHT |
||
| 571 | // 102 = SLIDER_MARKER - shift RIGHT |
||
| 572 | |||
| 573 | // shift left border |
||
| 574 | if (x==0 && i != 99 && i != 102) |
||
| 575 | font->ft_parent_bitmap.get_bitmap_data()[(curx+x+(cury+y)*tw)-1] = fp[x+y*w]; |
||
| 576 | |||
| 577 | // shift right border |
||
| 578 | if (x==w-1 && i != 100) |
||
| 579 | font->ft_parent_bitmap.get_bitmap_data()[(curx+x+(cury+y)*tw)+1] = fp[x+y*w]; |
||
| 580 | } |
||
| 581 | } |
||
| 582 | } |
||
| 583 | } |
||
| 584 | else |
||
| 585 | { |
||
| 586 | int BitMask, bits = 0; |
||
| 587 | auto white = gr_find_closest_color(63, 63, 63); |
||
| 588 | auto fp = (font->ft_flags & FT_PROPORTIONAL) |
||
| 589 | ? font->ft_chars[i] |
||
| 590 | : font->ft_data + i * BITS_TO_BYTES(w)*h; |
||
| 591 | for (int y=0;y<h;y++){ |
||
| 592 | BitMask=0; |
||
| 593 | for (int x=0; x< w; x++ ) |
||
| 594 | { |
||
| 595 | if (BitMask==0) { |
||
| 596 | bits = *fp++; |
||
| 597 | BitMask = 0x80; |
||
| 598 | } |
||
| 599 | |||
| 600 | if (bits & BitMask) |
||
| 601 | font->ft_parent_bitmap.get_bitmap_data()[curx+x+(cury+y)*tw] = white; |
||
| 602 | else |
||
| 603 | font->ft_parent_bitmap.get_bitmap_data()[curx+x+(cury+y)*tw] = 255; |
||
| 604 | BitMask >>= 1; |
||
| 605 | } |
||
| 606 | } |
||
| 607 | } |
||
| 608 | gr_init_sub_bitmap(font->ft_bitmaps[i],font->ft_parent_bitmap,curx,cury,w,h); |
||
| 609 | curx+=w+gap; |
||
| 610 | } |
||
| 611 | ogl_loadbmtexture_f(font->ft_parent_bitmap, CGameCfg.TexFilt, 0, 0); |
||
| 612 | } |
||
| 613 | |||
| 614 | static int ogl_internal_string(grs_canvas &canvas, const grs_font &cv_font, const int x, const int y, const char *const s) |
||
| 615 | { |
||
| 616 | const char * text_ptr, * next_row, * text_ptr1; |
||
| 617 | int letter; |
||
| 618 | int xx,yy; |
||
| 619 | int orig_color = canvas.cv_font_fg_color;//to allow easy reseting to default string color with colored strings -MPM |
||
| 620 | int underline; |
||
| 621 | |||
| 622 | next_row = s; |
||
| 623 | |||
| 624 | yy = y; |
||
| 625 | |||
| 626 | if (grd_curscreen->sc_canvas.cv_bitmap.get_type() != bm_mode::ogl) |
||
| 627 | Error("carp.\n"); |
||
| 628 | const auto &&fspacy1 = FSPACY(1); |
||
| 629 | const auto &&INFONT = font_character_extent(cv_font); |
||
| 630 | const auto &&fontscale_x = FONTSCALE_X(); |
||
| 631 | const auto &&FONTSCALE_Y_ft_h = FONTSCALE_Y(cv_font.ft_h); |
||
| 632 | ogl_colors colors; |
||
| 633 | while (next_row != NULL) |
||
| 634 | { |
||
| 635 | text_ptr1 = next_row; |
||
| 636 | next_row = NULL; |
||
| 637 | |||
| 638 | text_ptr = text_ptr1; |
||
| 639 | |||
| 640 | xx = x; |
||
| 641 | |||
| 642 | if (xx==0x8000) //centered |
||
| 643 | xx = get_centered_x(canvas, cv_font, text_ptr); |
||
| 644 | |||
| 645 | while (*text_ptr) |
||
| 646 | { |
||
| 647 | |||
| 648 | if (*text_ptr == '\n' ) |
||
| 649 | { |
||
| 650 | next_row = &text_ptr[1]; |
||
| 651 | yy += FONTSCALE_Y_ft_h + fspacy1; |
||
| 652 | break; |
||
| 653 | } |
||
| 654 | |||
| 655 | letter = static_cast<uint8_t>(*text_ptr) - cv_font.ft_minchar; |
||
| 656 | |||
| 657 | const auto &result = get_char_width<int>(cv_font, text_ptr[0], text_ptr[1]); |
||
| 658 | const auto &spacing = result.spacing; |
||
| 659 | |||
| 660 | underline = 0; |
||
| 661 | if (!INFONT(letter) || static_cast<uint8_t>(*text_ptr) <= 0x06) //not in font, draw as space |
||
| 662 | { |
||
| 663 | CHECK_EMBEDDED_COLORS() else{ |
||
| 664 | xx += spacing; |
||
| 665 | text_ptr++; |
||
| 666 | } |
||
| 667 | |||
| 668 | if (underline) |
||
| 669 | { |
||
| 670 | const auto color = canvas.cv_font_fg_color; |
||
| 671 | gr_rect(canvas, xx, yy + cv_font.ft_baseline + 2, xx + cv_font.ft_w, yy + cv_font.ft_baseline + 3, color); |
||
| 672 | } |
||
| 673 | |||
| 674 | continue; |
||
| 675 | } |
||
| 676 | |||
| 677 | const auto ft_w = (cv_font.ft_flags & FT_PROPORTIONAL) |
||
| 678 | ? cv_font.ft_widths[letter] |
||
| 679 | : cv_font.ft_w; |
||
| 680 | |||
| 681 | ogl_ubitmapm_cs(canvas, xx, yy, fontscale_x(ft_w), FONTSCALE_Y_ft_h, cv_font.ft_bitmaps[letter], (cv_font.ft_flags & FT_COLOR) ? colors.white : (canvas.cv_bitmap.get_type() == bm_mode::ogl) ? colors.init(canvas.cv_font_fg_color) : throw std::runtime_error("non-color string to non-ogl dest"), F1_0); |
||
| 682 | |||
| 683 | xx += spacing; |
||
| 684 | |||
| 685 | text_ptr++; |
||
| 686 | } |
||
| 687 | } |
||
| 688 | return 0; |
||
| 689 | } |
||
| 690 | |||
| 691 | #define gr_internal_color_string ogl_internal_string |
||
| 692 | #endif //OGL |
||
| 693 | |||
| 694 | void gr_string(grs_canvas &canvas, const grs_font &cv_font, const int x, const int y, const char *const s) |
||
| 695 | { |
||
| 696 | int w, h; |
||
| 697 | gr_get_string_size(cv_font, s, &w, &h, nullptr); |
||
| 698 | gr_string(canvas, cv_font, x, y, s, w, h); |
||
| 699 | } |
||
| 700 | |||
| 701 | static void gr_ustring_mono(grs_canvas &canvas, const grs_font &cv_font, const int x, const int y, const char *const s) |
||
| 702 | { |
||
| 703 | switch (canvas.cv_bitmap.get_type()) |
||
| 704 | { |
||
| 705 | case bm_mode::linear: |
||
| 706 | if (canvas.cv_font_bg_color == -1) |
||
| 707 | gr_internal_string0m(canvas, cv_font, x, y, s); |
||
| 708 | else |
||
| 709 | gr_internal_string0(canvas, cv_font, x, y, s); |
||
| 710 | } |
||
| 711 | } |
||
| 712 | |||
| 713 | void gr_string(grs_canvas &canvas, const grs_font &cv_font, const int x, const int y, const char *const s, const int w, const int h) |
||
| 714 | { |
||
| 715 | if (y + h < 0) |
||
| 716 | return; |
||
| 717 | const auto bm_h = canvas.cv_bitmap.bm_h; |
||
| 718 | if (y > bm_h) |
||
| 719 | return; |
||
| 720 | const auto bm_w = canvas.cv_bitmap.bm_w; |
||
| 721 | int xw = w; |
||
| 722 | if ( x == 0x8000 ) { |
||
| 723 | // for x, since this will be centered, only look at |
||
| 724 | // width. |
||
| 725 | } else { |
||
| 726 | if (x > bm_w) |
||
| 727 | return; |
||
| 728 | xw += x; |
||
| 729 | if (xw < 0) |
||
| 730 | return; |
||
| 731 | } |
||
| 732 | if ( |
||
| 733 | #if DXX_USE_OGL |
||
| 734 | canvas.cv_bitmap.get_type() == bm_mode::ogl || |
||
| 735 | #endif |
||
| 736 | cv_font.ft_flags & FT_COLOR) |
||
| 737 | { |
||
| 738 | gr_internal_color_string(canvas, cv_font, x, y, s); |
||
| 739 | return; |
||
| 740 | } |
||
| 741 | // Partially clipped... |
||
| 742 | if (!(y < 0 || |
||
| 743 | x < 0 || |
||
| 744 | xw > bm_w || |
||
| 745 | y + h > bm_h)) |
||
| 746 | { |
||
| 747 | gr_ustring_mono(canvas, cv_font, x, y, s); |
||
| 748 | return; |
||
| 749 | } |
||
| 750 | |||
| 751 | if (canvas.cv_font_bg_color == -1) |
||
| 752 | { |
||
| 753 | gr_internal_string_clipped_m(canvas, cv_font, x, y, s); |
||
| 754 | return; |
||
| 755 | } |
||
| 756 | gr_internal_string_clipped(canvas, cv_font, x, y, s); |
||
| 757 | } |
||
| 758 | |||
| 759 | void gr_ustring(grs_canvas &canvas, const grs_font &cv_font, const int x, const int y, const char *const s) |
||
| 760 | { |
||
| 761 | #if DXX_USE_OGL |
||
| 762 | if (canvas.cv_bitmap.get_type() == bm_mode::ogl) |
||
| 763 | { |
||
| 764 | ogl_internal_string(canvas, cv_font, x, y, s); |
||
| 765 | return; |
||
| 766 | } |
||
| 767 | #endif |
||
| 768 | |||
| 769 | if (canvas.cv_font->ft_flags & FT_COLOR) { |
||
| 770 | gr_internal_color_string(canvas, cv_font, x, y, s); |
||
| 771 | } |
||
| 772 | else |
||
| 773 | gr_ustring_mono(canvas, cv_font, x, y, s); |
||
| 774 | } |
||
| 775 | |||
| 776 | int gr_get_string_height(const grs_font &cv_font, const unsigned lines) |
||
| 777 | { |
||
| 778 | const auto fontscale_y = FONTSCALE_Y(cv_font.ft_h); |
||
| 779 | return static_cast<int>(fontscale_y + (lines * (fontscale_y + FSPACY(1)))); |
||
| 780 | } |
||
| 781 | |||
| 782 | void gr_get_string_size(const grs_font &cv_font, const char *s, int *const string_width, int *const string_height, int *const average_width) |
||
| 783 | { |
||
| 784 | gr_get_string_size(cv_font, s, string_width, string_height, average_width, UINT_MAX); |
||
| 785 | } |
||
| 786 | |||
| 787 | void gr_get_string_size(const grs_font &cv_font, const char *s, int *const string_width, int *const string_height, int *const average_width, const unsigned max_chars_per_line) |
||
| 788 | { |
||
| 789 | float longest_width=0.0,string_width_f=0.0; |
||
| 790 | unsigned lines = 0; |
||
| 791 | if (average_width) |
||
| 792 | *average_width = cv_font.ft_w; |
||
| 793 | if (!string_width && !string_height) |
||
| 794 | return; |
||
| 795 | if (s) |
||
| 796 | { |
||
| 797 | unsigned remaining_chars_this_line = max_chars_per_line; |
||
| 798 | while (*s) |
||
| 799 | { |
||
| 800 | if (*s == '\n') |
||
| 801 | { |
||
| 802 | if (longest_width < string_width_f) |
||
| 803 | longest_width = string_width_f; |
||
| 804 | string_width_f = 0; |
||
| 805 | const auto os = s; |
||
| 806 | while (*++s == '\n') |
||
| 807 | { |
||
| 808 | } |
||
| 809 | lines += s - os; |
||
| 810 | if (!*s) |
||
| 811 | break; |
||
| 812 | remaining_chars_this_line = max_chars_per_line; |
||
| 813 | } |
||
| 814 | |||
| 815 | const auto &result = get_char_width<float>(cv_font, s[0], s[1]); |
||
| 816 | const auto &spacing = result.spacing; |
||
| 817 | string_width_f += spacing; |
||
| 818 | s++; |
||
| 819 | if (!--remaining_chars_this_line) |
||
| 820 | break; |
||
| 821 | } |
||
| 822 | } |
||
| 823 | if (string_width) |
||
| 824 | *string_width = std::max(longest_width, string_width_f); |
||
| 825 | if (string_height) |
||
| 826 | *string_height = gr_get_string_height(cv_font, lines); |
||
| 827 | } |
||
| 828 | |||
| 829 | std::pair<const char *, unsigned> gr_get_string_wrap(const grs_font &cv_font, const char *s, unsigned limit) |
||
| 830 | { |
||
| 831 | assert(s); |
||
| 832 | float string_width_f=0.0; |
||
| 833 | const float limit_f = limit; |
||
| 834 | for (uint8_t c; (c = *s); ++s) |
||
| 835 | { |
||
| 836 | const auto &&spacing = get_char_width<float>(cv_font, c, s[1]).spacing; |
||
| 837 | const float next_string_width = string_width_f + spacing; |
||
| 838 | if (next_string_width >= limit_f) |
||
| 839 | break; |
||
| 840 | string_width_f = next_string_width; |
||
| 841 | } |
||
| 842 | return {s, static_cast<unsigned>(string_width_f)}; |
||
| 843 | } |
||
| 844 | |||
| 845 | template <void (&F)(grs_canvas &, const grs_font &, int, int, const char *)> |
||
| 846 | void (gr_printt)(grs_canvas &canvas, const grs_font &cv_font, const int x, const int y, const char *const format, ...) |
||
| 847 | { |
||
| 848 | char buffer[1000]; |
||
| 849 | va_list args; |
||
| 850 | |||
| 851 | va_start(args, format ); |
||
| 852 | vsnprintf(buffer, sizeof(buffer), format, args); |
||
| 853 | va_end(args); |
||
| 854 | F(canvas, cv_font, x, y, buffer); |
||
| 855 | } |
||
| 856 | |||
| 857 | template void gr_printt<gr_string>(grs_canvas &, const grs_font &, int, int, const char *, ...); |
||
| 858 | template void gr_printt<gr_ustring>(grs_canvas &, const grs_font &, int, int, const char *, ...); |
||
| 859 | |||
| 860 | void gr_close_font(std::unique_ptr<grs_font> font) |
||
| 861 | { |
||
| 862 | if (font) |
||
| 863 | { |
||
| 864 | //find font in list |
||
| 865 | if (!(font->ft_flags & FT_COLOR)) |
||
| 866 | return; |
||
| 867 | auto e = end(open_font); |
||
| 868 | auto i = std::find(begin(open_font), e, font.get()); |
||
| 869 | if (i == e) |
||
| 870 | throw std::logic_error("closing non-open font"); |
||
| 871 | *i = nullptr; |
||
| 872 | } |
||
| 873 | } |
||
| 874 | |||
| 875 | //remap a font, re-reading its data & palette |
||
| 876 | static void gr_remap_font(grs_font *font, const char *fontname); |
||
| 877 | |||
| 878 | //remap (by re-reading) all the color fonts |
||
| 879 | void gr_remap_color_fonts() |
||
| 880 | { |
||
| 881 | range_for (auto font, open_font) |
||
| 882 | { |
||
| 883 | if (font) |
||
| 884 | gr_remap_font(font, &font->ft_filename[0]); |
||
| 885 | } |
||
| 886 | } |
||
| 887 | |||
| 888 | /* |
||
| 889 | * reads a grs_font structure from a PHYSFS_File |
||
| 890 | */ |
||
| 891 | static void grs_font_read(grs_font *gf, PHYSFS_File *fp) |
||
| 892 | { |
||
| 893 | gf->ft_w = PHYSFSX_readShort(fp); |
||
| 894 | gf->ft_h = PHYSFSX_readShort(fp); |
||
| 895 | gf->ft_flags = PHYSFSX_readShort(fp); |
||
| 896 | gf->ft_baseline = PHYSFSX_readShort(fp); |
||
| 897 | gf->ft_minchar = PHYSFSX_readByte(fp); |
||
| 898 | gf->ft_maxchar = PHYSFSX_readByte(fp); |
||
| 899 | PHYSFSX_readShort(fp); |
||
| 900 | gf->ft_data = reinterpret_cast<uint8_t *>(static_cast<uintptr_t>(PHYSFSX_readInt(fp)) - GRS_FONT_SIZE); |
||
| 901 | PHYSFSX_readInt(fp); |
||
| 902 | gf->ft_widths = reinterpret_cast<int16_t *>(static_cast<uintptr_t>(PHYSFSX_readInt(fp)) - GRS_FONT_SIZE); |
||
| 903 | gf->ft_kerndata = reinterpret_cast<uint8_t *>(static_cast<uintptr_t>(PHYSFSX_readInt(fp)) - GRS_FONT_SIZE); |
||
| 904 | } |
||
| 905 | |||
| 906 | static std::unique_ptr<grs_font> gr_internal_init_font(const char *fontname) |
||
| 907 | { |
||
| 908 | const uint8_t *ptr; |
||
| 909 | color_palette_index *ft_data; |
||
| 910 | struct { |
||
| 911 | std::array<char, 4> magic; |
||
| 912 | unsigned datasize; //size up to (but not including) palette |
||
| 913 | } file_header; |
||
| 914 | |||
| 915 | auto fontfile = PHYSFSX_openReadBuffered(fontname); |
||
| 916 | |||
| 917 | if (!fontfile) { |
||
| 918 | con_printf(CON_VERBOSE, "Can't open font file %s", fontname); |
||
| 919 | return {}; |
||
| 920 | } |
||
| 921 | |||
| 922 | static_assert(sizeof(file_header) == 8, "file header size error"); |
||
| 923 | if (PHYSFS_read(fontfile, &file_header, sizeof(file_header), 1) != 1 || |
||
| 924 | memcmp(file_header.magic.data(), "PSFN", 4) || |
||
| 925 | (file_header.datasize = INTEL_INT(file_header.datasize)) < GRS_FONT_SIZE) |
||
| 926 | { |
||
| 927 | con_printf(CON_NORMAL, "Invalid header in font file %s", fontname); |
||
| 928 | return {}; |
||
| 929 | } |
||
| 930 | |||
| 931 | file_header.datasize -= GRS_FONT_SIZE; // subtract the size of the header. |
||
| 932 | const auto &datasize = file_header.datasize; |
||
| 933 | |||
| 934 | auto font = std::make_unique<grs_font>(); |
||
| 935 | grs_font_read(font.get(), fontfile); |
||
| 936 | |||
| 937 | const unsigned nchars = font->ft_maxchar - font->ft_minchar + 1; |
||
| 938 | std::size_t ft_chars_storage = (font->ft_flags & FT_PROPORTIONAL) |
||
| 939 | ? sizeof(uint8_t *) * nchars |
||
| 940 | : 0; |
||
| 941 | |||
| 942 | auto ft_allocdata = std::make_unique<color_palette_index[]>(datasize + ft_chars_storage); |
||
| 943 | const auto font_data = &ft_allocdata[ft_chars_storage]; |
||
| 944 | if (PHYSFS_read(fontfile, font_data, 1, datasize) != datasize) |
||
| 945 | { |
||
| 946 | con_printf(CON_URGENT, "Insufficient data in font file %s", fontname); |
||
| 947 | return {}; |
||
| 948 | } |
||
| 949 | |||
| 950 | if (font->ft_flags & FT_PROPORTIONAL) { |
||
| 951 | const auto offset_widths = reinterpret_cast<uintptr_t>(font->ft_widths); |
||
| 952 | auto w = reinterpret_cast<short *>(&font_data[offset_widths]); |
||
| 953 | if (offset_widths >= datasize || offset_widths + (nchars * sizeof(*w)) >= datasize) |
||
| 954 | { |
||
| 955 | con_printf(CON_URGENT, "Missing widths in font file %s", fontname); |
||
| 956 | return {}; |
||
| 957 | } |
||
| 958 | font->ft_widths = w; |
||
| 959 | const auto offset_data = reinterpret_cast<uintptr_t>(font->ft_data); |
||
| 960 | if (offset_data >= datasize) |
||
| 961 | { |
||
| 962 | con_printf(CON_URGENT, "Missing data in font file %s", fontname); |
||
| 963 | return {}; |
||
| 964 | } |
||
| 965 | font->ft_data = ptr = ft_data = &font_data[offset_data]; |
||
| 966 | const auto ft_chars = reinterpret_cast<const uint8_t **>(ft_allocdata.get()); |
||
| 967 | font->ft_chars = reinterpret_cast<const uint8_t *const *>(ft_chars); |
||
| 968 | |||
| 969 | const unsigned is_color = font->ft_flags & FT_COLOR; |
||
| 970 | const unsigned ft_h = font->ft_h; |
||
| 971 | std::generate_n(ft_chars, nchars, [is_color, ft_h, &w, &ptr]{ |
||
| 972 | const unsigned s = INTEL_SHORT(*w); |
||
| 973 | if constexpr (words_bigendian) |
||
| 974 | *w = static_cast<uint16_t>(s); |
||
| 975 | ++w; |
||
| 976 | const auto r = ptr; |
||
| 977 | ptr += ft_h * (is_color ? s : BITS_TO_BYTES(s)); |
||
| 978 | return r; |
||
| 979 | }); |
||
| 980 | } else { |
||
| 981 | |||
| 982 | font->ft_data = ft_data = font_data; |
||
| 983 | font->ft_widths = NULL; |
||
| 984 | |||
| 985 | ptr = font->ft_data + (nchars * font->ft_w * font->ft_h); |
||
| 986 | } |
||
| 987 | |||
| 988 | if (font->ft_flags & FT_KERNED) |
||
| 989 | { |
||
| 990 | const auto offset_kerndata = reinterpret_cast<uintptr_t>(font->ft_kerndata); |
||
| 991 | if (datasize <= offset_kerndata) |
||
| 992 | { |
||
| 993 | con_printf(CON_URGENT, "Missing kerndata in font file %s", fontname); |
||
| 994 | return {}; |
||
| 995 | } |
||
| 996 | const auto begin_kerndata = reinterpret_cast<const unsigned char *>(&font_data[offset_kerndata]); |
||
| 997 | const auto end_font_data = &font_data[datasize - ((datasize - offset_kerndata + 2) % 3)]; |
||
| 998 | for (auto cur_kerndata = begin_kerndata;; cur_kerndata += 3) |
||
| 999 | { |
||
| 1000 | if (cur_kerndata == end_font_data) |
||
| 1001 | { |
||
| 1002 | con_printf(CON_URGENT, "Unterminated kerndata in font file %s", fontname); |
||
| 1003 | return {}; |
||
| 1004 | } |
||
| 1005 | if (*cur_kerndata == kerndata_terminator) |
||
| 1006 | break; |
||
| 1007 | } |
||
| 1008 | font->ft_kerndata = begin_kerndata; |
||
| 1009 | } |
||
| 1010 | else |
||
| 1011 | font->ft_kerndata = nullptr; |
||
| 1012 | |||
| 1013 | if (font->ft_flags & FT_COLOR) { //remap palette |
||
| 1014 | palette_array_t palette; |
||
| 1015 | std::array<color_palette_index, 256> colormap; |
||
| 1016 | /* `freq` exists so that decode_data can write to it, but it is |
||
| 1017 | * otherwise unused. `decode_data` is not guaranteed to write |
||
| 1018 | * to every element, but the bitset constructor will initialize |
||
| 1019 | * the storage, so reading unwritten fields will always return |
||
| 1020 | * false. |
||
| 1021 | */ |
||
| 1022 | std::bitset<256> freq; |
||
| 1023 | |||
| 1024 | PHYSFS_read(fontfile,&palette[0],sizeof(palette[0]),palette.size()); //read the palette |
||
| 1025 | |||
| 1026 | build_colormap_good(palette, colormap); |
||
| 1027 | |||
| 1028 | colormap[TRANSPARENCY_COLOR] = TRANSPARENCY_COLOR; // changed from colormap[255] = 255 to this for macintosh |
||
| 1029 | |||
| 1030 | decode_data(ft_data, ptr - font->ft_data, colormap, freq ); |
||
| 1031 | } |
||
| 1032 | fontfile.reset(); |
||
| 1033 | //set curcanv vars |
||
| 1034 | |||
| 1035 | auto &ft_filename = font->ft_filename; |
||
| 1036 | font->ft_allocdata = move(ft_allocdata); |
||
| 1037 | strncpy(&ft_filename[0], fontname, ft_filename.size()); |
||
| 1038 | return font; |
||
| 1039 | } |
||
| 1040 | |||
| 1041 | grs_font_ptr gr_init_font(grs_canvas &canvas, const char *fontname) |
||
| 1042 | { |
||
| 1043 | auto font = gr_internal_init_font(fontname); |
||
| 1044 | if (!font) |
||
| 1045 | return {}; |
||
| 1046 | |||
| 1047 | canvas.cv_font = font.get(); |
||
| 1048 | canvas.cv_font_fg_color = 0; |
||
| 1049 | canvas.cv_font_bg_color = 0; |
||
| 1050 | if (font->ft_flags & FT_COLOR) |
||
| 1051 | { |
||
| 1052 | auto e = end(open_font); |
||
| 1053 | auto i = std::find(begin(open_font), e, static_cast<grs_font *>(nullptr)); |
||
| 1054 | if (i == e) |
||
| 1055 | throw std::logic_error("too many open fonts"); |
||
| 1056 | *i = font.get(); |
||
| 1057 | } |
||
| 1058 | #if DXX_USE_OGL |
||
| 1059 | ogl_init_font(font.get()); |
||
| 1060 | #endif |
||
| 1061 | return grs_font_ptr(font.release()); |
||
| 1062 | } |
||
| 1063 | |||
| 1064 | //remap a font by re-reading its data & palette |
||
| 1065 | void gr_remap_font(grs_font *font, const char *fontname) |
||
| 1066 | { |
||
| 1067 | auto n = gr_internal_init_font(fontname); |
||
| 1068 | if (!n) |
||
| 1069 | return; |
||
| 1070 | if (!(n->ft_flags & FT_COLOR)) |
||
| 1071 | return; |
||
| 1072 | *font = std::move(*n.get()); |
||
| 1073 | #if DXX_USE_OGL |
||
| 1074 | ogl_init_font(font); |
||
| 1075 | #endif |
||
| 1076 | } |
||
| 1077 | |||
| 1078 | void gr_set_curfont(grs_canvas &canvas, const grs_font *n) |
||
| 1079 | { |
||
| 1080 | canvas.cv_font = n; |
||
| 1081 | } |
||
| 1082 | |||
| 1083 | template <bool masked_draws_background> |
||
| 1084 | static int gr_internal_string_clipped_template(grs_canvas &canvas, const grs_font &cv_font, int x, int y, const char *const s) |
||
| 1085 | { |
||
| 1086 | int letter; |
||
| 1087 | int x1 = x, last_x; |
||
| 1088 | |||
| 1089 | const auto &&INFONT = font_character_extent(cv_font); |
||
| 1090 | const auto ft_flags = cv_font.ft_flags; |
||
| 1091 | const auto proportional = ft_flags & FT_PROPORTIONAL; |
||
| 1092 | const auto cv_font_bg_color = canvas.cv_font_bg_color; |
||
| 1093 | |||
| 1094 | for (auto next_row = s; next_row;) |
||
| 1095 | { |
||
| 1096 | const auto text_ptr1 = next_row; |
||
| 1097 | next_row = NULL; |
||
| 1098 | |||
| 1099 | x = x1; |
||
| 1100 | if (x==0x8000) //centered |
||
| 1101 | x = get_centered_x(canvas, cv_font, text_ptr1); |
||
| 1102 | |||
| 1103 | last_x = x; |
||
| 1104 | |||
| 1105 | for (int r=0; r < cv_font.ft_h; r++) { |
||
| 1106 | auto text_ptr = text_ptr1; |
||
| 1107 | x = last_x; |
||
| 1108 | |||
| 1109 | for (; const uint8_t c0 = *text_ptr; ++text_ptr) |
||
| 1110 | { |
||
| 1111 | if (c0 == '\n') |
||
| 1112 | { |
||
| 1113 | next_row = &text_ptr[1]; |
||
| 1114 | break; |
||
| 1115 | } |
||
| 1116 | if (c0 == CC_COLOR) |
||
| 1117 | { |
||
| 1118 | canvas.cv_font_fg_color = static_cast<uint8_t>(*++text_ptr); |
||
| 1119 | continue; |
||
| 1120 | } |
||
| 1121 | |||
| 1122 | if (c0 == CC_LSPACING) |
||
| 1123 | { |
||
| 1124 | Int3(); // Warning: skip lines not supported for clipped strings. |
||
| 1125 | text_ptr += 1; |
||
| 1126 | continue; |
||
| 1127 | } |
||
| 1128 | |||
| 1129 | const auto underline = unlikely(c0 == CC_UNDERLINE) |
||
| 1130 | ? ++text_ptr, r == cv_font.ft_baseline + 2 || r == cv_font.ft_baseline + 3 |
||
| 1131 | : 0; |
||
| 1132 | const uint8_t c = *text_ptr; |
||
| 1133 | const auto &result = get_char_width<int>(cv_font, c, text_ptr[1]); |
||
| 1134 | const auto &width = result.width; |
||
| 1135 | const auto &spacing = result.spacing; |
||
| 1136 | |||
| 1137 | letter = c - cv_font.ft_minchar; |
||
| 1138 | |||
| 1139 | if (!INFONT(letter)) { //not in font, draw as space |
||
| 1140 | x += spacing; |
||
| 1141 | continue; |
||
| 1142 | } |
||
| 1143 | const auto cv_font_fg_color = canvas.cv_font_fg_color; |
||
| 1144 | auto color = cv_font_fg_color; |
||
| 1145 | if (width) |
||
| 1146 | { |
||
| 1147 | if (underline) { |
||
| 1148 | for (uint_fast32_t i = width; i--;) |
||
| 1149 | { |
||
| 1150 | gr_pixel(canvas.cv_bitmap, x++, y, color); |
||
| 1151 | } |
||
| 1152 | } else { |
||
| 1153 | auto fp = proportional ? cv_font.ft_chars[letter] : cv_font.ft_data + letter * BITS_TO_BYTES(width) * cv_font.ft_h; |
||
| 1154 | fp += BITS_TO_BYTES(width)*r; |
||
| 1155 | |||
| 1156 | /* Setting bits=0 is a dead store, but is necessary to |
||
| 1157 | * prevent -Og -Wuninitialized from issuing a bogus |
||
| 1158 | * warning. -Og does not see that bits_remaining=0 |
||
| 1159 | * guarantees that bits will be initialized from *fp before |
||
| 1160 | * it is read. |
||
| 1161 | */ |
||
| 1162 | uint8_t bits_remaining = 0, bits = 0; |
||
| 1163 | |||
| 1164 | for (uint_fast32_t i = width; i--; ++x, --bits_remaining) |
||
| 1165 | { |
||
| 1166 | if (!bits_remaining) |
||
| 1167 | { |
||
| 1168 | bits = *fp++; |
||
| 1169 | bits_remaining = 8; |
||
| 1170 | } |
||
| 1171 | const auto bit_enabled = (bits & 0x80); |
||
| 1172 | bits <<= 1; |
||
| 1173 | if constexpr (masked_draws_background) |
||
| 1174 | color = bit_enabled ? cv_font_fg_color : cv_font_bg_color; |
||
| 1175 | else |
||
| 1176 | { |
||
| 1177 | if (!bit_enabled) |
||
| 1178 | continue; |
||
| 1179 | } |
||
| 1180 | gr_pixel(canvas.cv_bitmap, x, y, color); |
||
| 1181 | } |
||
| 1182 | } |
||
| 1183 | } |
||
| 1184 | x += spacing-width; //for kerning |
||
| 1185 | } |
||
| 1186 | y++; |
||
| 1187 | } |
||
| 1188 | } |
||
| 1189 | return 0; |
||
| 1190 | } |
||
| 1191 | |||
| 1192 | static int gr_internal_string_clipped_m(grs_canvas &canvas, const grs_font &cv_font, const int x, const int y, const char *const s) |
||
| 1193 | { |
||
| 1194 | return gr_internal_string_clipped_template<true>(canvas, cv_font, x, y, s); |
||
| 1195 | } |
||
| 1196 | |||
| 1197 | static int gr_internal_string_clipped(grs_canvas &canvas, const grs_font &cv_font, const int x, const int y, const char *const s) |
||
| 1198 | { |
||
| 1199 | return gr_internal_string_clipped_template<false>(canvas, cv_font, x, y, s); |
||
| 1200 | } |
||
| 1201 | |||
| 1202 | } |