1209 lines
32 KiB
C++
1209 lines
32 KiB
C++
/*
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* Portions of this file are copyright Rebirth contributors and licensed as
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* described in COPYING.txt.
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* Portions of this file are copyright Parallax Software and licensed
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* according to the Parallax license below.
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* See COPYING.txt for license details.
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THE COMPUTER CODE CONTAINED HEREIN IS THE SOLE PROPERTY OF PARALLAX
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SOFTWARE CORPORATION ("PARALLAX"). PARALLAX, IN DISTRIBUTING THE CODE TO
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END-USERS, AND SUBJECT TO ALL OF THE TERMS AND CONDITIONS HEREIN, GRANTS A
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ROYALTY-FREE, PERPETUAL LICENSE TO SUCH END-USERS FOR USE BY SUCH END-USERS
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IN USING, DISPLAYING, AND CREATING DERIVATIVE WORKS THEREOF, SO LONG AS
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SUCH USE, DISPLAY OR CREATION IS FOR NON-COMMERCIAL, ROYALTY OR REVENUE
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FREE PURPOSES. IN NO EVENT SHALL THE END-USER USE THE COMPUTER CODE
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CONTAINED HEREIN FOR REVENUE-BEARING PURPOSES. THE END-USER UNDERSTANDS
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AND AGREES TO THE TERMS HEREIN AND ACCEPTS THE SAME BY USE OF THIS FILE.
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COPYRIGHT 1993-1999 PARALLAX SOFTWARE CORPORATION. ALL RIGHTS RESERVED.
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*/
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/*
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*
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* Graphical routines for drawing fonts.
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*
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*/
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#include <algorithm>
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#include <memory>
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#include <stdexcept>
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#include <stdarg.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#ifndef macintosh
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#include <fcntl.h>
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#endif
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#include "u_mem.h"
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#include "gr.h"
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#include "dxxerror.h"
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#include "common/2d/bitmap.h"
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#include "physfsx.h"
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#include "gamefont.h"
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#include "byteutil.h"
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#include "console.h"
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#include "config.h"
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#if DXX_USE_OGL
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#include "ogl_init.h"
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#endif
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#include "compiler-range_for.h"
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#include "partial_range.h"
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#include "d_range.h"
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#include <array>
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#include <memory>
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namespace dcx {
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namespace {
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static font_x_scale_float FONTSCALE_X()
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{
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return font_x_scale_float(FNTScaleX.operator float());
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}
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static auto FONTSCALE_Y(const int &y)
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{
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return font_y_scaled_float(FNTScaleY * y);
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}
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#define MAX_OPEN_FONTS 50
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constexpr std::integral_constant<uint8_t, 255> kerndata_terminator{};
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//list of open fonts, for use (for now) for palette remapping
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static std::array<grs_font *, MAX_OPEN_FONTS> open_font;
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#define BITS_TO_BYTES(x) (((x)+7)>>3)
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static int gr_internal_string_clipped(grs_canvas &, const grs_font &cv_font, int x, int y, const char *s);
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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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static const uint8_t *find_kern_entry(const grs_font &font, const uint8_t first, const uint8_t second)
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{
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auto p = font.ft_kerndata;
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while (*p != kerndata_terminator)
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if (p[0]==first && p[1]==second)
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return p;
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else p+=3;
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return NULL;
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}
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//takes the character AFTER being offset into font
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class font_character_extent
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{
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const unsigned r;
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public:
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font_character_extent(const grs_font &cv_font) :
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r(cv_font.ft_maxchar - cv_font.ft_minchar)
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{
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}
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bool operator()(const unsigned c) const
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{
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return c <= r;
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}
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};
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template <typename T>
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struct get_char_width_result
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{
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T width, spacing;
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};
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/* Floating form never uses width. This specialization allows the
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* compiler to recognize width as dead, shortening
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* get_char_width<float>.
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*/
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template <>
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struct get_char_width_result<float>
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{
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float spacing;
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get_char_width_result(float, float s) :
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spacing(s)
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{
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}
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};
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//takes the character BEFORE being offset into current font
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template <typename T>
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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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{
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const unsigned letter = c - cv_font.ft_minchar;
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const auto ft_flags = cv_font.ft_flags;
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const auto proportional = ft_flags & FT_PROPORTIONAL;
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const auto &&fontscale_x = FONTSCALE_X();
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const auto &&INFONT = font_character_extent(cv_font);
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if (!INFONT(letter)) { //not in font, draw as space
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return {0, static_cast<T>(proportional ? fontscale_x(cv_font.ft_w) / 2 : cv_font.ft_w)};
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}
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const T width = proportional ? fontscale_x(cv_font.ft_widths[letter]).operator float() : cv_font.ft_w;
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if (ft_flags & FT_KERNED)
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{
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if (!(c2==0 || c2=='\n')) {
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const unsigned letter2 = c2 - cv_font.ft_minchar;
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if (INFONT(letter2)) {
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const auto p = find_kern_entry(cv_font, letter, letter2);
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if (p)
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return {width, static_cast<T>(fontscale_x(p[2]))};
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}
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}
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}
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return {width, width};
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}
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static int get_centered_x(const grs_canvas &canvas, const grs_font &cv_font, const char *s)
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{
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float w;
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for (w = 0.; const char c = *s; ++s)
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{
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if (c == '\n')
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break;
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if (c <= 0x06)
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{
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if (c <= 0x03)
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s++;
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continue;//skip color codes.
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}
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w += get_char_width<float>(cv_font, c, s[1]).spacing;
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}
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return (canvas.cv_bitmap.bm_w - w) / 2;
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}
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//hack to allow color codes to be embedded in strings -MPM
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//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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//function must already have orig_color var set (or they could be passed as args...)
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//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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constexpr std::integral_constant<int, 1> gr_message_color_level{};
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struct per_character_row_state
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{
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uint8_t draw_full_width_as_fg_color = 0;
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};
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#define CHECK_EMBEDDED_COLORS() if (const char control_code = *text_ptr; control_code >= 0x01 && control_code <= 0x02) { \
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text_ptr++; \
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if (*text_ptr){ \
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if (gr_message_color_level >= control_code) \
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canvas.cv_font_fg_color = *text_ptr; \
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text_ptr++; \
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} \
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} \
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else if (control_code == 0x03) \
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{ \
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state.draw_full_width_as_fg_color = 1; \
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text_ptr++; \
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} \
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else if (control_code >= 0x04 && control_code <= 0x06) { \
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if (gr_message_color_level >= control_code - 3) \
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canvas.cv_font_fg_color= orig_color; \
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text_ptr++; \
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}
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template <bool masked_draws_background>
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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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{
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const auto &&INFONT = font_character_extent(cv_font);
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const auto ft_flags = cv_font.ft_flags;
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const auto proportional = ft_flags & FT_PROPORTIONAL;
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const auto cv_font_bg_color = canvas.cv_font_bg_color;
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int skip_lines = 0;
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unsigned int VideoOffset1;
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//to allow easy reseting to default string color with colored strings -MPM
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const auto orig_color = canvas.cv_font_fg_color;
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VideoOffset1 = y * canvas.cv_bitmap.bm_rowsize + x;
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for (auto next_row = s; next_row;)
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{
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const auto text_ptr1 = std::exchange(next_row, nullptr);
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if (x==0x8000) { //centered
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int xx = get_centered_x(canvas, cv_font, text_ptr1);
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VideoOffset1 = y * canvas.cv_bitmap.bm_rowsize + xx;
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}
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for (int r=0; r < cv_font.ft_h; ++r)
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{
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auto text_ptr = text_ptr1;
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unsigned VideoOffset = VideoOffset1;
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for (; const uint8_t c0 = *text_ptr; ++text_ptr)
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{
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if (c0 == '\n')
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{
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next_row = &text_ptr[1];
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break;
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}
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if (c0 == CC_COLOR)
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{
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canvas.cv_font_fg_color = static_cast<uint8_t>(*++text_ptr);
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continue;
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}
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if (c0 == CC_LSPACING)
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{
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skip_lines = *++text_ptr - '0';
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continue;
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}
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per_character_row_state state{
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(unlikely(c0 == CC_UNDERLINE)
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? ++text_ptr, r == cv_font.ft_baseline + 2 || r == cv_font.ft_baseline + 3
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: false),
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};
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const uint8_t c = *text_ptr;
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const auto &result = get_char_width<int>(cv_font, c, text_ptr[1]);
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const auto &width = result.width;
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const auto &spacing = result.spacing;
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const unsigned letter = c - cv_font.ft_minchar;
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if constexpr (masked_draws_background)
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{
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(void)orig_color;
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if (!INFONT(letter)) { //not in font, draw as space
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VideoOffset += spacing;
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text_ptr++;
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continue;
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}
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}
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else
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{
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if (!INFONT(letter) || c <= 0x06) //not in font, draw as space
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{
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CHECK_EMBEDDED_COLORS() else{
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VideoOffset += spacing;
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text_ptr++;
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}
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continue;
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}
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}
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if (width)
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{
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auto data = &canvas.cv_bitmap.get_bitmap_data()[VideoOffset];
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const auto cv_font_fg_color = canvas.cv_font_fg_color;
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if (state.draw_full_width_as_fg_color)
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{
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std::fill_n(data, width, cv_font_fg_color);
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}
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else
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{
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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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fp += BITS_TO_BYTES(width)*r;
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/* Setting bits=0 is a dead store, but is necessary to
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* prevent -Og -Wuninitialized from issuing a bogus
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* warning. -Og does not see that bits_remaining=0
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* guarantees that bits will be initialized from *fp before
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* it is read.
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*/
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uint8_t bits_remaining = 0, bits = 0;
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for (uint_fast32_t i = width; i--; ++data, --bits_remaining)
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{
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if (!bits_remaining)
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{
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bits = *fp++;
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bits_remaining = 8;
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}
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const auto bit_enabled = (bits & 0x80);
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bits <<= 1;
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if constexpr (!masked_draws_background)
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{
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if (!bit_enabled)
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continue;
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}
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*data = bit_enabled ? cv_font_fg_color : cv_font_bg_color;
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}
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}
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}
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VideoOffset += spacing;
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}
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VideoOffset1 += canvas.cv_bitmap.bm_rowsize;
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y++;
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}
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y += skip_lines;
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VideoOffset1 += canvas.cv_bitmap.bm_rowsize * skip_lines;
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skip_lines = 0;
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}
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return 0;
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}
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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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{
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return gr_internal_string0_template<true>(canvas, cv_font, x, y, s);
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}
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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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{
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return gr_internal_string0_template<false>(canvas, cv_font, x, y, s);
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}
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#if !DXX_USE_OGL
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static void 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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{
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//a bitmap for the character
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grs_bitmap char_bm = {};
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char_bm.set_type(bm_mode::linear);
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char_bm.set_flags(BM_FLAG_TRANSPARENT);
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const char *text_ptr, *next_row, *text_ptr1;
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int letter;
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int xx,yy;
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const auto &&INFONT = font_character_extent(cv_font);
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char_bm.bm_h = cv_font.ft_h; //set height for chars of this font
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next_row = s;
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yy = y;
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const auto &&fspacy1 = FSPACY(1);
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while (next_row != NULL)
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{
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text_ptr1 = next_row;
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next_row = NULL;
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text_ptr = text_ptr1;
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xx = x;
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if (xx==0x8000) //centered
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xx = get_centered_x(canvas, cv_font, text_ptr);
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while (*text_ptr)
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{
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if (*text_ptr == '\n' )
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{
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next_row = &text_ptr[1];
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yy += cv_font.ft_h + fspacy1;
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break;
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}
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letter = static_cast<uint8_t>(*text_ptr) - cv_font.ft_minchar;
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const auto &result = get_char_width<int>(cv_font, text_ptr[0], text_ptr[1]);
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const auto &width = result.width;
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const auto &spacing = result.spacing;
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if (!INFONT(letter)) { //not in font, draw as space
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xx += spacing;
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text_ptr++;
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continue;
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}
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const auto fp = (cv_font.ft_flags & FT_PROPORTIONAL)
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? cv_font.ft_chars[letter]
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: &cv_font.ft_data[letter * BITS_TO_BYTES(width) * cv_font.ft_h];
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/* Cast away const-ness on the font pointer. The function
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* must take the parameter as non-const because some callers
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* provide an uninitialized pointer and fill it later.
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*/
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gr_init_bitmap(char_bm, bm_mode::linear, 0, 0, width, cv_font.ft_h, width, const_cast<color_palette_index *>(fp));
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gr_bitmapm(canvas, xx, yy, char_bm);
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xx += spacing;
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text_ptr++;
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}
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}
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}
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#else //OGL
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static int get_font_total_width(const grs_font &font)
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{
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if (font.ft_flags & FT_PROPORTIONAL)
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{
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int w=0;
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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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{
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if (v < 0)
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throw std::underflow_error("negative width");
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w += v;
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}
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return w;
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}else{
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return font.ft_w*(font.ft_maxchar-font.ft_minchar+1);
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}
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}
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static std::pair<int, int> ogl_font_choose_size(grs_font * font, const int gap)
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{
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int nchars = font->ft_maxchar-font->ft_minchar+1;
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int r,x,y,nc=0,smallest=999999,smallr=-1,tries;
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int smallprop=10000;
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int w;
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int rw = INT_MIN, rh = INT_MIN;
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for (int h=32;h<=256;h*=2){
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// h=pow2ize(font->ft_h*rows+gap*(rows-1));
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if (font->ft_h>h)continue;
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r=(h/(font->ft_h+gap));
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w=pow2ize((get_font_total_width(*font)+(nchars-r)*gap)/r);
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tries=0;
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do {
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if (tries)
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w=pow2ize(w+1);
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if(tries>3){
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break;
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}
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nc=0;
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y=0;
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while(y+font->ft_h<=h){
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x=0;
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while (x<w){
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if (nc==nchars)
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break;
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if (font->ft_flags & FT_PROPORTIONAL){
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if (x+font->ft_widths[nc]+gap>w)break;
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x+=font->ft_widths[nc++]+gap;
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}else{
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if (x+font->ft_w+gap>w)break;
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x+=font->ft_w+gap;
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nc++;
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}
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}
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if (nc==nchars)
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break;
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y+=font->ft_h+gap;
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}
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tries++;
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}while(nc!=nchars);
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if (nc!=nchars)
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continue;
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if (w*h==smallest){//this gives squarer sizes priority (ie, 128x128 would be better than 512*32)
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if (w>=h){
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if (w/h<smallprop){
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smallprop=w/h;
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smallest++;//hack
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}
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}else{
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if (h/w<smallprop){
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smallprop=h/w;
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smallest++;//hack
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}
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}
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}
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if (w*h<smallest){
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smallr=1;
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smallest=w*h;
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rw = w;
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rh = h;
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}
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}
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if (smallr<=0)
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Error("Could not fit font?\n");
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return {rw, rh};
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}
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static void ogl_init_font(grs_font * font)
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{
|
|
int oglflags = OGL_FLAG_ALPHA;
|
|
const unsigned nchars = font->ft_maxchar - font->ft_minchar + 1;
|
|
int curx=0,cury=0;
|
|
int gap=1; // x/y offset between the chars so we can filter
|
|
|
|
const auto &&[tw, th] = ogl_font_choose_size(font, gap);
|
|
{
|
|
RAIIdmem<uint8_t[]> data;
|
|
const unsigned length = tw * th;
|
|
MALLOC(data, uint8_t[], length);
|
|
std::fill_n(data.get(), length, TRANSPARENCY_COLOR); // map the whole data with transparency so we won't have borders if using gap
|
|
gr_init_main_bitmap(font->ft_parent_bitmap, bm_mode::linear, 0, 0, tw, th, tw, std::move(data));
|
|
}
|
|
gr_set_transparent(font->ft_parent_bitmap, 1);
|
|
|
|
if (!(font->ft_flags & FT_COLOR))
|
|
oglflags |= OGL_FLAG_NOCOLOR;
|
|
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.
|
|
|
|
font->ft_bitmaps = std::make_unique<grs_bitmap[]>(nchars);
|
|
const unsigned h = font->ft_h;
|
|
|
|
for (const auto i : xrange(nchars))
|
|
{
|
|
const unsigned w = (font->ft_flags & FT_PROPORTIONAL)
|
|
? font->ft_widths[i]
|
|
: font->ft_w;
|
|
|
|
if (w<1 || w>256)
|
|
continue;
|
|
|
|
if (curx+w+gap>tw)
|
|
{
|
|
cury+=h+gap;
|
|
curx=0;
|
|
}
|
|
|
|
if (cury+h>th)
|
|
Error("font doesn't really fit (%i/%i)?\n",i,nchars);
|
|
|
|
if (font->ft_flags & FT_COLOR)
|
|
{
|
|
const auto fp = (font->ft_flags & FT_PROPORTIONAL)
|
|
? font->ft_chars[i]
|
|
: font->ft_data + i * w*h;
|
|
for (const auto y : xrange(h))
|
|
{
|
|
for (const auto x : xrange(w))
|
|
font->ft_parent_bitmap.get_bitmap_data()[curx+x+(cury+y)*tw] = fp[x+y*w];
|
|
// Let's call this a HACK:
|
|
// If we filter the fonts, the sliders will be messed up as the border pixels will have an
|
|
// alpha value while filtering. So the slider bitmaps will not look "connected".
|
|
// To prevent this, duplicate the first/last pixel-row with a 1-pixel offset.
|
|
if (gap && i >= 99 && i <= 102)
|
|
{
|
|
// See which bitmaps need left/right shifts:
|
|
// 99 = SLIDER_LEFT - shift RIGHT
|
|
// 100 = SLIDER_RIGHT - shift LEFT
|
|
// 101 = SLIDER_MIDDLE - shift LEFT+RIGHT
|
|
// 102 = SLIDER_MARKER - shift RIGHT
|
|
|
|
// shift left border
|
|
std::size_t oi, ii;
|
|
if (i != 99 && i != 102)
|
|
{
|
|
oi = (curx + (cury + y) * tw) - 1;
|
|
ii = y * w;
|
|
}
|
|
// shift right border
|
|
else if (i != 100)
|
|
{
|
|
oi = (curx + (w - 1) + (cury + y) * tw) + 1;
|
|
ii = (w - 1) + y * w;
|
|
}
|
|
else
|
|
continue;
|
|
font->ft_parent_bitmap.get_bitmap_data()[oi] = fp[ii];
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
auto white = gr_find_closest_color(63, 63, 63);
|
|
auto fp = (font->ft_flags & FT_PROPORTIONAL)
|
|
? font->ft_chars[i]
|
|
: font->ft_data + i * BITS_TO_BYTES(w)*h;
|
|
for (const auto y : xrange(h))
|
|
{
|
|
uint8_t BitMask = 0;
|
|
uint8_t bits = 0;
|
|
for (const auto x : xrange(w))
|
|
{
|
|
if (BitMask==0) {
|
|
bits = *fp++;
|
|
BitMask = 0x80;
|
|
}
|
|
|
|
font->ft_parent_bitmap.get_bitmap_data()[curx+x+(cury+y)*tw] = (bits & BitMask)
|
|
? white
|
|
: 255;
|
|
BitMask >>= 1;
|
|
}
|
|
}
|
|
}
|
|
gr_init_sub_bitmap(font->ft_bitmaps[i],font->ft_parent_bitmap,curx,cury,w,h);
|
|
curx+=w+gap;
|
|
}
|
|
ogl_loadbmtexture_f(font->ft_parent_bitmap, CGameCfg.TexFilt, 0, 0);
|
|
}
|
|
|
|
static void ogl_internal_string(grs_canvas &canvas, const grs_font &cv_font, const int entry_x, int yy, const char *const s)
|
|
{
|
|
auto orig_color = canvas.cv_font_fg_color;//to allow easy reseting to default string color with colored strings -MPM
|
|
|
|
if (grd_curscreen->sc_canvas.cv_bitmap.get_type() != bm_mode::ogl)
|
|
Error("carp.\n");
|
|
const auto &&fspacy1 = FSPACY(1);
|
|
const auto &&INFONT = font_character_extent(cv_font);
|
|
const auto &&fontscale_x = FONTSCALE_X();
|
|
const auto &&FONTSCALE_Y_ft_h = FONTSCALE_Y(cv_font.ft_h);
|
|
ogl_colors colors;
|
|
for (auto next_row = s; next_row;)
|
|
{
|
|
auto text_ptr = std::exchange(next_row, nullptr);
|
|
auto line_x = entry_x == 0x8000
|
|
? get_centered_x(canvas, cv_font, text_ptr)
|
|
: entry_x;
|
|
|
|
for (; const auto c0 = *text_ptr;)
|
|
{
|
|
if (c0 == '\n')
|
|
{
|
|
next_row = &text_ptr[1];
|
|
yy += FONTSCALE_Y_ft_h + fspacy1;
|
|
break;
|
|
}
|
|
|
|
const auto letter = c0 - cv_font.ft_minchar;
|
|
|
|
const auto &result = get_char_width<int>(cv_font, c0, text_ptr[1]);
|
|
const auto &spacing = result.spacing;
|
|
|
|
per_character_row_state state;
|
|
if (!INFONT(letter) || c0 <= 0x06) //not in font, draw as space
|
|
{
|
|
CHECK_EMBEDDED_COLORS() else{
|
|
line_x += spacing;
|
|
text_ptr++;
|
|
}
|
|
if (state.draw_full_width_as_fg_color)
|
|
{
|
|
const auto color = canvas.cv_font_fg_color;
|
|
gr_rect(canvas, line_x, yy + cv_font.ft_baseline + 2, line_x + cv_font.ft_w, yy + cv_font.ft_baseline + 3, color);
|
|
}
|
|
|
|
continue;
|
|
}
|
|
const auto ft_w = (cv_font.ft_flags & FT_PROPORTIONAL)
|
|
? cv_font.ft_widths[letter]
|
|
: cv_font.ft_w;
|
|
|
|
ogl_ubitmapm_cs(canvas, line_x, 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"));
|
|
|
|
line_x += spacing;
|
|
text_ptr++;
|
|
}
|
|
}
|
|
}
|
|
|
|
#define gr_internal_color_string ogl_internal_string
|
|
#endif //OGL
|
|
|
|
}
|
|
|
|
void gr_string(grs_canvas &canvas, const grs_font &cv_font, const int x, const int y, const char *const s)
|
|
{
|
|
const auto &&[w, h] = gr_get_string_size(cv_font, s);
|
|
gr_string(canvas, cv_font, x, y, s, w, h);
|
|
}
|
|
|
|
namespace {
|
|
|
|
static void gr_ustring_mono(grs_canvas &canvas, const grs_font &cv_font, const int x, const int y, const char *const s)
|
|
{
|
|
switch (canvas.cv_bitmap.get_type())
|
|
{
|
|
case bm_mode::linear:
|
|
if (canvas.cv_font_bg_color == TRANSPARENCY_COLOR)
|
|
gr_internal_string0m(canvas, cv_font, x, y, s);
|
|
else
|
|
gr_internal_string0(canvas, cv_font, x, y, s);
|
|
break;
|
|
case bm_mode::ilbm:
|
|
case bm_mode::rgb15:
|
|
#if DXX_USE_OGL
|
|
case bm_mode::ogl:
|
|
#endif
|
|
break;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
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)
|
|
{
|
|
if (y + h < 0)
|
|
return;
|
|
const auto bm_h = canvas.cv_bitmap.bm_h;
|
|
if (y > bm_h)
|
|
return;
|
|
const auto bm_w = canvas.cv_bitmap.bm_w;
|
|
int xw = w;
|
|
if ( x == 0x8000 ) {
|
|
// for x, since this will be centered, only look at
|
|
// width.
|
|
} else {
|
|
if (x > bm_w)
|
|
return;
|
|
xw += x;
|
|
if (xw < 0)
|
|
return;
|
|
}
|
|
if (
|
|
#if DXX_USE_OGL
|
|
canvas.cv_bitmap.get_type() == bm_mode::ogl ||
|
|
#endif
|
|
cv_font.ft_flags & FT_COLOR)
|
|
{
|
|
gr_internal_color_string(canvas, cv_font, x, y, s);
|
|
return;
|
|
}
|
|
// Partially clipped...
|
|
if (!(y < 0 ||
|
|
x < 0 ||
|
|
xw > bm_w ||
|
|
y + h > bm_h))
|
|
{
|
|
gr_ustring_mono(canvas, cv_font, x, y, s);
|
|
return;
|
|
}
|
|
|
|
if (canvas.cv_font_bg_color == TRANSPARENCY_COLOR)
|
|
{
|
|
gr_internal_string_clipped_m(canvas, cv_font, x, y, s);
|
|
return;
|
|
}
|
|
gr_internal_string_clipped(canvas, cv_font, x, y, s);
|
|
}
|
|
|
|
void gr_ustring(grs_canvas &canvas, const grs_font &cv_font, const int x, const int y, const char *const s)
|
|
{
|
|
#if DXX_USE_OGL
|
|
if (canvas.cv_bitmap.get_type() == bm_mode::ogl)
|
|
{
|
|
ogl_internal_string(canvas, cv_font, x, y, s);
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
if (cv_font.ft_flags & FT_COLOR)
|
|
gr_internal_color_string(canvas, cv_font, x, y, s);
|
|
else
|
|
gr_ustring_mono(canvas, cv_font, x, y, s);
|
|
}
|
|
|
|
unsigned gr_get_string_height(const grs_font &cv_font, const unsigned lines)
|
|
{
|
|
const auto fontscale_y = FONTSCALE_Y(cv_font.ft_h);
|
|
return static_cast<unsigned>(fontscale_y + (lines * (fontscale_y + FSPACY(1))));
|
|
}
|
|
|
|
gr_string_size gr_get_string_size(const grs_font &cv_font, const char *s)
|
|
{
|
|
return gr_get_string_size(cv_font, s, UINT_MAX);
|
|
}
|
|
|
|
gr_string_size gr_get_string_size(const grs_font &cv_font, const char *s, const unsigned max_chars_per_line)
|
|
{
|
|
float longest_width=0.0,string_width_f=0.0;
|
|
unsigned lines = 0;
|
|
if (s)
|
|
{
|
|
unsigned remaining_chars_this_line = max_chars_per_line;
|
|
while (*s)
|
|
{
|
|
if (*s == '\n')
|
|
{
|
|
if (longest_width < string_width_f)
|
|
longest_width = string_width_f;
|
|
string_width_f = 0;
|
|
const auto os = s;
|
|
while (*++s == '\n')
|
|
{
|
|
}
|
|
lines += s - os;
|
|
if (!*s)
|
|
break;
|
|
remaining_chars_this_line = max_chars_per_line;
|
|
}
|
|
|
|
const auto &result = get_char_width<float>(cv_font, s[0], s[1]);
|
|
const auto &spacing = result.spacing;
|
|
string_width_f += spacing;
|
|
s++;
|
|
if (!--remaining_chars_this_line)
|
|
break;
|
|
}
|
|
}
|
|
return {static_cast<unsigned long>(std::max(longest_width, string_width_f)), gr_get_string_height(cv_font, lines)};
|
|
}
|
|
|
|
std::pair<const char *, unsigned> gr_get_string_wrap(const grs_font &cv_font, const char *s, unsigned limit)
|
|
{
|
|
assert(s);
|
|
float string_width_f=0.0;
|
|
const float limit_f = limit;
|
|
for (uint8_t c; (c = *s); ++s)
|
|
{
|
|
const auto &&spacing = get_char_width<float>(cv_font, c, s[1]).spacing;
|
|
const float next_string_width = string_width_f + spacing;
|
|
if (next_string_width >= limit_f)
|
|
break;
|
|
string_width_f = next_string_width;
|
|
}
|
|
return {s, static_cast<unsigned>(string_width_f)};
|
|
}
|
|
|
|
template <void (&F)(grs_canvas &, const grs_font &, int, int, const char *)>
|
|
void (gr_printt)(grs_canvas &canvas, const grs_font &cv_font, const int x, const int y, const char *const format, ...)
|
|
{
|
|
char buffer[1000];
|
|
va_list args;
|
|
|
|
va_start(args, format );
|
|
vsnprintf(buffer, sizeof(buffer), format, args);
|
|
va_end(args);
|
|
F(canvas, cv_font, x, y, buffer);
|
|
}
|
|
|
|
template void gr_printt<gr_string>(grs_canvas &, const grs_font &, int, int, const char *, ...);
|
|
template void gr_printt<gr_ustring>(grs_canvas &, const grs_font &, int, int, const char *, ...);
|
|
|
|
void gr_close_font(std::unique_ptr<grs_font> font)
|
|
{
|
|
if (font)
|
|
{
|
|
//find font in list
|
|
if (!(font->ft_flags & FT_COLOR))
|
|
return;
|
|
auto e = end(open_font);
|
|
auto i = std::find(begin(open_font), e, font.get());
|
|
if (i == e)
|
|
throw std::logic_error("closing non-open font");
|
|
*i = nullptr;
|
|
}
|
|
}
|
|
|
|
//remap a font, re-reading its data & palette
|
|
static void gr_remap_font(grs_font *font, const char *fontname);
|
|
|
|
//remap (by re-reading) all the color fonts
|
|
void gr_remap_color_fonts()
|
|
{
|
|
range_for (auto font, open_font)
|
|
{
|
|
if (font)
|
|
gr_remap_font(font, &font->ft_filename[0]);
|
|
}
|
|
}
|
|
|
|
namespace {
|
|
|
|
/*
|
|
* reads a grs_font structure from a PHYSFS_File
|
|
*/
|
|
static void grs_font_read(grs_font *gf, PHYSFS_File *fp)
|
|
{
|
|
gf->ft_w = PHYSFSX_readShort(fp);
|
|
gf->ft_h = PHYSFSX_readShort(fp);
|
|
gf->ft_flags = PHYSFSX_readShort(fp);
|
|
gf->ft_baseline = PHYSFSX_readShort(fp);
|
|
gf->ft_minchar = PHYSFSX_readByte(fp);
|
|
gf->ft_maxchar = PHYSFSX_readByte(fp);
|
|
PHYSFSX_readShort(fp);
|
|
gf->ft_data = reinterpret_cast<uint8_t *>(static_cast<uintptr_t>(PHYSFSX_readInt(fp)) - GRS_FONT_SIZE);
|
|
PHYSFSX_readInt(fp);
|
|
gf->ft_widths = reinterpret_cast<int16_t *>(static_cast<uintptr_t>(PHYSFSX_readInt(fp)) - GRS_FONT_SIZE);
|
|
gf->ft_kerndata = reinterpret_cast<uint8_t *>(static_cast<uintptr_t>(PHYSFSX_readInt(fp)) - GRS_FONT_SIZE);
|
|
}
|
|
|
|
static std::unique_ptr<grs_font> gr_internal_init_font(const char *fontname)
|
|
{
|
|
const uint8_t *ptr;
|
|
color_palette_index *ft_data;
|
|
struct {
|
|
std::array<char, 4> magic;
|
|
unsigned datasize; //size up to (but not including) palette
|
|
} file_header;
|
|
|
|
auto &&[fontfile, physfserr] = PHYSFSX_openReadBuffered(fontname);
|
|
|
|
if (!fontfile) {
|
|
con_printf(CON_VERBOSE, "Failed to open font file \"%s\": %s", fontname, PHYSFS_getErrorByCode(physfserr));
|
|
return {};
|
|
}
|
|
|
|
static_assert(sizeof(file_header) == 8, "file header size error");
|
|
if (PHYSFS_read(fontfile, &file_header, sizeof(file_header), 1) != 1 ||
|
|
memcmp(file_header.magic.data(), "PSFN", 4) ||
|
|
(file_header.datasize = INTEL_INT(file_header.datasize)) < GRS_FONT_SIZE)
|
|
{
|
|
con_printf(CON_NORMAL, "Invalid header in font file %s", fontname);
|
|
return {};
|
|
}
|
|
|
|
file_header.datasize -= GRS_FONT_SIZE; // subtract the size of the header.
|
|
const auto &datasize = file_header.datasize;
|
|
|
|
auto font = std::make_unique<grs_font>();
|
|
grs_font_read(font.get(), fontfile);
|
|
|
|
const unsigned nchars = font->ft_maxchar - font->ft_minchar + 1;
|
|
std::size_t ft_chars_storage = (font->ft_flags & FT_PROPORTIONAL)
|
|
? sizeof(uint8_t *) * nchars
|
|
: 0;
|
|
|
|
auto ft_allocdata = std::make_unique<color_palette_index[]>(datasize + ft_chars_storage);
|
|
const auto font_data = &ft_allocdata[ft_chars_storage];
|
|
if (PHYSFS_read(fontfile, font_data, 1, datasize) != datasize)
|
|
{
|
|
con_printf(CON_URGENT, "Insufficient data in font file %s", fontname);
|
|
return {};
|
|
}
|
|
|
|
if (font->ft_flags & FT_PROPORTIONAL) {
|
|
const auto offset_widths = reinterpret_cast<uintptr_t>(font->ft_widths);
|
|
auto w = reinterpret_cast<short *>(&font_data[offset_widths]);
|
|
if (offset_widths >= datasize || offset_widths + (nchars * sizeof(*w)) >= datasize)
|
|
{
|
|
con_printf(CON_URGENT, "Missing widths in font file %s", fontname);
|
|
return {};
|
|
}
|
|
font->ft_widths = w;
|
|
const auto offset_data = reinterpret_cast<uintptr_t>(font->ft_data);
|
|
if (offset_data >= datasize)
|
|
{
|
|
con_printf(CON_URGENT, "Missing data in font file %s", fontname);
|
|
return {};
|
|
}
|
|
font->ft_data = ptr = ft_data = &font_data[offset_data];
|
|
const auto ft_chars = reinterpret_cast<const uint8_t **>(ft_allocdata.get());
|
|
font->ft_chars = reinterpret_cast<const uint8_t *const *>(ft_chars);
|
|
|
|
const unsigned is_color = font->ft_flags & FT_COLOR;
|
|
const unsigned ft_h = font->ft_h;
|
|
std::generate_n(ft_chars, nchars, [is_color, ft_h, &w, &ptr]{
|
|
const unsigned s = INTEL_SHORT(*w);
|
|
if constexpr (words_bigendian)
|
|
*w = static_cast<uint16_t>(s);
|
|
++w;
|
|
const auto r = ptr;
|
|
ptr += ft_h * (is_color ? s : BITS_TO_BYTES(s));
|
|
return r;
|
|
});
|
|
} else {
|
|
|
|
font->ft_data = ft_data = font_data;
|
|
font->ft_widths = NULL;
|
|
|
|
ptr = font->ft_data + (nchars * font->ft_w * font->ft_h);
|
|
}
|
|
|
|
if (font->ft_flags & FT_KERNED)
|
|
{
|
|
const auto offset_kerndata = reinterpret_cast<uintptr_t>(font->ft_kerndata);
|
|
if (datasize <= offset_kerndata)
|
|
{
|
|
con_printf(CON_URGENT, "Missing kerndata in font file %s", fontname);
|
|
return {};
|
|
}
|
|
const auto begin_kerndata = reinterpret_cast<const unsigned char *>(&font_data[offset_kerndata]);
|
|
const auto end_font_data = &font_data[datasize - ((datasize - offset_kerndata + 2) % 3)];
|
|
for (auto cur_kerndata = begin_kerndata;; cur_kerndata += 3)
|
|
{
|
|
if (cur_kerndata == end_font_data)
|
|
{
|
|
con_printf(CON_URGENT, "Unterminated kerndata in font file %s", fontname);
|
|
return {};
|
|
}
|
|
if (*cur_kerndata == kerndata_terminator)
|
|
break;
|
|
}
|
|
font->ft_kerndata = begin_kerndata;
|
|
}
|
|
else
|
|
font->ft_kerndata = nullptr;
|
|
|
|
if (font->ft_flags & FT_COLOR) { //remap palette
|
|
palette_array_t palette;
|
|
std::array<color_palette_index, 256> colormap;
|
|
/* `freq` exists so that decode_data can write to it, but it is
|
|
* otherwise unused. `decode_data` is not guaranteed to write
|
|
* to every element, but the bitset constructor will initialize
|
|
* the storage, so reading unwritten fields will always return
|
|
* false.
|
|
*/
|
|
std::bitset<256> freq;
|
|
|
|
PHYSFS_read(fontfile,&palette[0],sizeof(palette[0]),palette.size()); //read the palette
|
|
|
|
build_colormap_good(palette, colormap);
|
|
|
|
colormap[TRANSPARENCY_COLOR] = TRANSPARENCY_COLOR; // changed from colormap[255] = 255 to this for macintosh
|
|
|
|
decode_data(std::span{ft_data, ptr}, colormap, freq);
|
|
}
|
|
fontfile.reset();
|
|
//set curcanv vars
|
|
|
|
auto &ft_filename = font->ft_filename;
|
|
font->ft_allocdata = move(ft_allocdata);
|
|
strncpy(&ft_filename[0], fontname, ft_filename.size());
|
|
return font;
|
|
}
|
|
|
|
}
|
|
|
|
grs_font_ptr gr_init_font(grs_canvas &canvas, const char *fontname)
|
|
{
|
|
auto font = gr_internal_init_font(fontname);
|
|
if (!font)
|
|
return {};
|
|
|
|
canvas.cv_font = font.get();
|
|
canvas.cv_font_fg_color = 0;
|
|
canvas.cv_font_bg_color = 0;
|
|
if (font->ft_flags & FT_COLOR)
|
|
{
|
|
auto e = end(open_font);
|
|
auto i = std::find(begin(open_font), e, static_cast<grs_font *>(nullptr));
|
|
if (i == e)
|
|
throw std::logic_error("too many open fonts");
|
|
*i = font.get();
|
|
}
|
|
#if DXX_USE_OGL
|
|
ogl_init_font(font.get());
|
|
#endif
|
|
return grs_font_ptr(font.release());
|
|
}
|
|
|
|
//remap a font by re-reading its data & palette
|
|
void gr_remap_font(grs_font *font, const char *fontname)
|
|
{
|
|
auto n = gr_internal_init_font(fontname);
|
|
if (!n)
|
|
return;
|
|
if (!(n->ft_flags & FT_COLOR))
|
|
return;
|
|
*font = std::move(*n.get());
|
|
#if DXX_USE_OGL
|
|
ogl_init_font(font);
|
|
#endif
|
|
}
|
|
|
|
void gr_set_curfont(grs_canvas &canvas, const grs_font &n)
|
|
{
|
|
canvas.cv_font = &n;
|
|
}
|
|
|
|
namespace {
|
|
|
|
template <bool masked_draws_background>
|
|
static int gr_internal_string_clipped_template(grs_canvas &canvas, const grs_font &cv_font, int x, int y, const char *const s)
|
|
{
|
|
int letter;
|
|
int x1 = x, last_x;
|
|
|
|
const auto &&INFONT = font_character_extent(cv_font);
|
|
const auto ft_flags = cv_font.ft_flags;
|
|
const auto proportional = ft_flags & FT_PROPORTIONAL;
|
|
const auto cv_font_bg_color = canvas.cv_font_bg_color;
|
|
|
|
for (auto next_row = s; next_row;)
|
|
{
|
|
const auto text_ptr1 = next_row;
|
|
next_row = NULL;
|
|
|
|
x = x1;
|
|
if (x==0x8000) //centered
|
|
x = get_centered_x(canvas, cv_font, text_ptr1);
|
|
|
|
last_x = x;
|
|
|
|
for (const auto r : xrange(cv_font.ft_h))
|
|
{
|
|
auto text_ptr = text_ptr1;
|
|
x = last_x;
|
|
|
|
for (; const uint8_t c0 = *text_ptr; ++text_ptr)
|
|
{
|
|
if (c0 == '\n')
|
|
{
|
|
next_row = &text_ptr[1];
|
|
break;
|
|
}
|
|
if (c0 == CC_COLOR)
|
|
{
|
|
canvas.cv_font_fg_color = static_cast<uint8_t>(*++text_ptr);
|
|
continue;
|
|
}
|
|
|
|
if (c0 == CC_LSPACING)
|
|
{
|
|
Int3(); // Warning: skip lines not supported for clipped strings.
|
|
text_ptr += 1;
|
|
continue;
|
|
}
|
|
|
|
per_character_row_state state{
|
|
(unlikely(c0 == CC_UNDERLINE)
|
|
? ++text_ptr, r == cv_font.ft_baseline + 2 || r == cv_font.ft_baseline + 3
|
|
: false),
|
|
};
|
|
const uint8_t c = *text_ptr;
|
|
const auto &result = get_char_width<int>(cv_font, c, text_ptr[1]);
|
|
const auto &width = result.width;
|
|
const auto &spacing = result.spacing;
|
|
|
|
letter = c - cv_font.ft_minchar;
|
|
|
|
if (!INFONT(letter)) { //not in font, draw as space
|
|
x += spacing;
|
|
continue;
|
|
}
|
|
const auto cv_font_fg_color = canvas.cv_font_fg_color;
|
|
auto color = cv_font_fg_color;
|
|
if (width)
|
|
{
|
|
if (state.draw_full_width_as_fg_color) {
|
|
for (uint_fast32_t i = width; i--;)
|
|
{
|
|
gr_pixel(canvas.cv_bitmap, x++, y, color);
|
|
}
|
|
} else {
|
|
auto fp = proportional ? cv_font.ft_chars[letter] : cv_font.ft_data + letter * BITS_TO_BYTES(width) * cv_font.ft_h;
|
|
fp += BITS_TO_BYTES(width)*r;
|
|
|
|
/* Setting bits=0 is a dead store, but is necessary to
|
|
* prevent -Og -Wuninitialized from issuing a bogus
|
|
* warning. -Og does not see that bits_remaining=0
|
|
* guarantees that bits will be initialized from *fp before
|
|
* it is read.
|
|
*/
|
|
uint8_t bits_remaining = 0, bits = 0;
|
|
|
|
for (uint_fast32_t i = width; i--; ++x, --bits_remaining)
|
|
{
|
|
if (!bits_remaining)
|
|
{
|
|
bits = *fp++;
|
|
bits_remaining = 8;
|
|
}
|
|
const auto bit_enabled = (bits & 0x80);
|
|
bits <<= 1;
|
|
if constexpr (masked_draws_background)
|
|
color = bit_enabled ? cv_font_fg_color : cv_font_bg_color;
|
|
else
|
|
{
|
|
if (!bit_enabled)
|
|
continue;
|
|
}
|
|
gr_pixel(canvas.cv_bitmap, x, y, color);
|
|
}
|
|
}
|
|
}
|
|
x += spacing-width; //for kerning
|
|
}
|
|
y++;
|
|
}
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
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)
|
|
{
|
|
return gr_internal_string_clipped_template<true>(canvas, cv_font, x, y, s);
|
|
}
|
|
|
|
static int gr_internal_string_clipped(grs_canvas &canvas, const grs_font &cv_font, const int x, const int y, const char *const s)
|
|
{
|
|
return gr_internal_string_clipped_template<false>(canvas, cv_font, x, y, s);
|
|
}
|
|
|
|
}
|
|
|
|
}
|