X-Git-Url: https://git.sesse.net/?p=ccbs;a=blobdiff_plain;f=bigscreen%2Ffonts.cpp;h=4b0f3c85541de609f435f7243a740413cb25b49b;hp=3e958c7101ddeddfc987fc42a4bf70d3854be03b;hb=7b8b747f037d2244ffd080e97d9d5e5c0e9114a7;hpb=47647e430209e70479579de3725b193baf26630a diff --git a/bigscreen/fonts.cpp b/bigscreen/fonts.cpp index 3e958c7..4b0f3c8 100644 --- a/bigscreen/fonts.cpp +++ b/bigscreen/fonts.cpp @@ -1,83 +1,164 @@ +#include #include #include +#include +#include #include "fonts.h" +#include "resolution.h" +#include "theme.h" -std::vector fonts; +extern std::map config; +std::map faces; + +std::vector split(const std::string &str, char delim) +{ + std::vector ret; + std::string s; + for (unsigned i = 0; i < str.size(); ++i) { + if (str[i] == delim) { + ret.push_back(s); + s.clear(); + } else { + s.push_back(str[i]); + } + } + if (!s.empty()) { + ret.push_back(s); + } + return ret; +} void init_freetype() { FT_Library library; - FT_Face face; if (FT_Init_FreeType(&library)) throw std::runtime_error("FreeType init failed."); - // Georgia - if (FT_New_Face(library, "/usr/share/fonts/truetype/msttcorefonts/Georgia.ttf", 0, &face)) - throw std::runtime_error("Face opening failed."); - if (FT_Set_Char_Size(face, 0, 12 * 64, 96, 96)) - throw std::runtime_error("Size set failed."); - fonts.push_back(face); - - // FreeSerif - if (FT_New_Face(library, "/usr/share/fonts/truetype/freefont/FreeSerif.ttf", 0, &face)) { - std::fprintf(stderr, "Warning: Couldn't open FreeSerif, some glyphs might not be available\n"); - } else { - if (FT_Set_Char_Size(face, 0, 12 * 64, 96, 96)) - throw std::runtime_error("Size set failed."); - fonts.push_back(face); + // Preload all fonts. + for (std::map::const_iterator it = config.begin(); + it != config.end(); + ++it) { + const std::string key = it->first; + if (key.size() <= 5 || key.substr(key.size() - 5) != ".font") { + continue; + } + + std::vector font_list = split(it->second, ';'); + for (unsigned i = 0; i < font_list.size(); ++i) { + if (faces.count(font_list[i])) { + // Already preloaded. + continue; + } + + FT_Face face; + if (FT_New_Face(library, font_list[i].c_str(), 0, &face)) { + fprintf(stderr, "Warning: Couldn't open '%s', some glyphs might not be available\n", font_list[i].c_str()); + } else { + faces[font_list[i]] = face; + } + } } - - // Arial Unicode MS - if (FT_New_Face(library, "arialuni.ttf", 0, &face)) { - std::fprintf(stderr, "Warning: Couldn't open Arial Unicode MS, some glyphs might not be available\n"); - } else { - if (FT_Set_Char_Size(face, 0, 12 * 64, 96, 96)) - throw std::runtime_error("Size set failed."); - fonts.push_back(face); +} + +void get_glyph(const std::vector &fonts, wchar_t ch, FT_Face *face, int *glyph_index) +{ + for (std::vector::const_iterator i = fonts.begin(); i != fonts.end(); ++i) { + *glyph_index = FT_Get_Char_Index(*i, ch); + if (*glyph_index == 0) + continue; + *face = *i; + return; } } -unsigned my_draw_text(const widestring &str, unsigned char *buf, int xpos, int ypos, bool real_render, int r, int g, int b) +// this should really be done somehow else :-) +static unsigned screen_width, screen_height; +void set_screen_size(unsigned width, unsigned height) +{ + screen_width = width; + screen_height = height; +} + +unsigned my_draw_text(const widestring &str, unsigned char *buf, double size, const std::string &theme_element, int xpos, int ypos) { - FT_GlyphSlot slot; int x = 0; - for (widestring::const_iterator i = str.begin(); i != str.end(); ++i) { - int glyph_index; - for (std::vector::const_iterator j = fonts.begin(); j != fonts.end(); ++j) { - glyph_index = FT_Get_Char_Index(*j, *i); - if (glyph_index == 0) - continue; + int r = atoi(get_theme_config(theme_element, "red").c_str()); + int g = atoi(get_theme_config(theme_element, "green").c_str()); + int b = atoi(get_theme_config(theme_element, "blue").c_str()); + bool use_lcd = atoi(get_theme_config("screen", "lcd").c_str()); - if (FT_Load_Glyph(*j, glyph_index, FT_LOAD_RENDER)) - throw std::runtime_error("Couldn't load glyph"); - slot = (*j)->glyph; - break; + // Find font faces. + std::vector fonts; + std::vector font_list = split(get_theme_config(theme_element, "font"), ';'); + for (unsigned i = 0; i < font_list.size(); ++i) { + if (faces.count(font_list[i])) { + fonts.push_back(faces[font_list[i]]); } + } + + for (std::vector::const_iterator i = fonts.begin(); i != fonts.end(); ++i) { + if (FT_Set_Char_Size(*i, 0, unsigned(size * 64.0), 96 * screen_width/LOGICAL_SCREEN_WIDTH, 96 * screen_height/LOGICAL_SCREEN_HEIGHT)) + throw std::runtime_error("Couldn't set font size"); + } + + // whoop :-P + xpos = xpos * screen_width / LOGICAL_SCREEN_WIDTH; + ypos = ypos * screen_height / LOGICAL_SCREEN_HEIGHT; + + for (widestring::const_iterator i = str.begin(); i != str.end(); ++i) { + FT_Face face; + int glyph_index; + get_glyph(fonts, *i, &face, &glyph_index); if (glyph_index == 0) { - std::fprintf(stderr, "Warning: Could not find a glyph in any font for U+%x, ignoring\n", *i); + std::fprintf(stderr, "Warning: Could not find a glyph in any font for U+%04x, ignoring\n", *i); continue; } - if (real_render) { + if (use_lcd) { + if (FT_Load_Glyph(face, glyph_index, FT_LOAD_RENDER | FT_LOAD_TARGET_LCD)) + throw std::runtime_error("Couldn't load glyph"); + } else { + if (FT_Load_Glyph(face, glyph_index, FT_LOAD_RENDER)) + throw std::runtime_error("Couldn't load glyph"); + } + + FT_GlyphSlot slot = face->glyph; + if (buf != NULL) { int y; FT_Bitmap *bm = &(slot->bitmap); for (y = 0; y < bm->rows; y++) { int xx; int dsty = ypos - slot->bitmap_top + y; - if (dsty < 0 || dsty > 599) continue; - - unsigned char *dst = buf + dsty * 800*4 + (x + xpos + slot->bitmap_left)*4; - unsigned char *src = bm->buffer + y * bm->width; - for (xx = 0; xx < bm->width; xx++) { - *dst = (*dst * (256-*src) + r * *src) >> 8; - *dst++; - *dst = (*dst * (256-*src) + g * *src) >> 8; - *dst++; - *dst = (*dst * (256-*src) + b * *src) >> 8; - *dst++; - *dst++ = 0; - src++; + if (dsty < 0 || dsty > signed(screen_height-1)) continue; + + unsigned char *dst = buf + dsty * screen_width*4 + (x + xpos + slot->bitmap_left)*4; + unsigned char *src = bm->buffer + y * bm->pitch; + if (use_lcd) { + int width = (x + xpos + slot->bitmap_left + bm->width/3 >= signed(screen_width)) ? ((screen_width-1) - x - xpos - slot->bitmap_left) : bm->width/3; + for (xx = 0; xx < width; xx++) { + *dst = (*dst * (256-src[2]) + b * src[2]) >> 8; + ++dst; + *dst = (*dst * (256-src[1]) + g * src[1]) >> 8; + ++dst; + *dst = (*dst * (256-src[0]) + r * src[0]) >> 8; + ++dst; + *dst++ = 0; + + src += 3; + } + } else { + int width = (x + xpos + slot->bitmap_left + bm->width >= signed(screen_width)) ? ((screen_width-1) - x - xpos - slot->bitmap_left) : bm->width; + for (xx = 0; xx < width; xx++) { + *dst = (*dst * (256-*src) + b * *src) >> 8; + ++dst; + *dst = (*dst * (256-*src) + g * *src) >> 8; + ++dst; + *dst = (*dst * (256-*src) + r * *src) >> 8; + ++dst; + *dst++ = 0; + ++src; + } } } } @@ -85,5 +166,33 @@ unsigned my_draw_text(const widestring &str, unsigned char *buf, int xpos, int y x += slot->advance.x >> 6; } - return x; + return x * LOGICAL_SCREEN_WIDTH / screen_width; +} + +void my_draw_text_deferred(std::vector &td, const widestring &str, double size, const std::string &theme_element, const std::string &fresh_theme_element, int xpos, int ypos) +{ + TextDefer newtd; + newtd.str = str; + newtd.size = size; + newtd.xpos = xpos; + newtd.ypos = ypos; + newtd.theme_element = theme_element; + newtd.fresh_theme_element = fresh_theme_element; + td.push_back(newtd); } + +void draw_all_deferred_text(unsigned char *buf, std::vector ¤t, std::vector &old) +{ + for (unsigned i = 0; i < current.size(); ++i) { + std::string theme_element; + if (i < old.size() && current[i].str != old[i].str) { + // changed text + theme_element = current[i].fresh_theme_element; + } else { + theme_element = current[i].theme_element; + } + + my_draw_text(current[i].str, buf, current[i].size, theme_element, current[i].xpos, current[i].ypos); + } +} +