X-Git-Url: https://git.sesse.net/?p=ccbs;a=blobdiff_plain;f=bigscreen%2Fccbs_bigscreen.cpp;h=19937b246f9e10d672b42e14d1221aa7d62fad43;hp=c9cb82d56f147efa3e2c6dc5fb868a7211c69f2c;hb=5e25e532a03e76374d575105c22453e210e88cdd;hpb=67a137c169546903ce19fc23ba5955426691f4f7 diff --git a/bigscreen/ccbs_bigscreen.cpp b/bigscreen/ccbs_bigscreen.cpp index c9cb82d..19937b2 100644 --- a/bigscreen/ccbs_bigscreen.cpp +++ b/bigscreen/ccbs_bigscreen.cpp @@ -1,7 +1,65 @@ #include +#include +#include #include #include -#include "glwindow.h" +#include +#include FT_FREETYPE_H +#include +#include + +iconv_t ucs4_iconv; + +// UCS-4 string with support for getting from UTF-8 +class widestring : public std::wstring +{ +public: + void operator= (const char *from) + { + unsigned bytes = std::strlen(from); + char *from_buf = strdup(from); + wchar_t *to_buf = new wchar_t[bytes + 1]; + + char *inptr = from_buf, *outptr = reinterpret_cast (to_buf); + + size_t in_left = bytes; + size_t out_left = bytes * sizeof(wchar_t); + + size_t ret = iconv(ucs4_iconv, NULL, NULL, &outptr, &out_left); + if (ret == (size_t)(-1)) { + throw std::runtime_error("Error in iconv during initialization"); + } + + ret = iconv(ucs4_iconv, &inptr, &in_left, &outptr, &out_left); + if (ret == (size_t)(-1)) { + perror("iconv"); + throw std::runtime_error("Error in iconv during conversion"); + } + + erase(begin(), end()); + std::copy(to_buf, reinterpret_cast (outptr), std::back_inserter(*this)); + + free(from_buf); + delete[] to_buf; + } +}; + +template<> +void pqxx::from_string(const char *from, widestring &to) +{ + to = from; +} + +int my_draw_text(const widestring &str, unsigned char *buf, int xpos, int ypos, bool real_render, int r, int g, int b, std::vector &fontlist); + +class Tournament { +public: + int id; + widestring name; +}; + +Tournament active_tournament; +std::vector fonts; /* A trigger that sets a flag whenever it's trigged. */ class FlagTrigger : pqxx::trigger { @@ -33,81 +91,177 @@ public: /* A transactor that fetches the current tournament and some information about it. */ class FetchCurrentTournament : public pqxx::transactor<> { private: - int id; - std::string name; + Tournament *tourn; public: - FetchCurrentTournament() {} + FetchCurrentTournament(Tournament *tourn) : tourn(tourn) {} void operator() (pqxx::transaction<> &t) { pqxx::result res( t.exec("SELECT * FROM bigscreen.active_tournament NATURAL JOIN tournaments") ); try { pqxx::result::tuple tournament = res.at(0); - id = tournament["tournament"].as(id); - name = tournament["tournament"].as(name); + tourn->id = tournament["tournament"].as(tourn->id); + tourn->name = tournament["tournamentname"].as(tourn->name); } catch (PGSTD::out_of_range &e) { - std::fprintf(stderr, "foof\n"); - - id = -1; - name = ""; + tourn->id = -1; + tourn->name = ""; } } - - int get_tournament_id() const - { - return id; - } - - std::string get_tournament_name() const - { - return name; - } }; void init(pqxx::connection &conn) { - FetchCurrentTournament fct; - conn.perform(fct); + conn.perform(FetchCurrentTournament(&active_tournament)); - if (fct.get_tournament_id() == -1) { + if (active_tournament.id == -1) { std::fprintf(stderr, "No active tournament\n"); } else { std::fprintf(stderr, "Current tournament is %d (name: '%s')\n", - fct.get_tournament_id(), fct.get_tournament_name().c_str()); + active_tournament.id, active_tournament.name.c_str()); } } +unsigned char framebuf[800 * 600 * 4]; + void main_loop(pqxx::connection &conn) { + if (active_tournament.id == -1) { + // No active tournament, sleep a second or so and exit + sleep(1); + return; + } + + memset(framebuf, 0, 800*600*4); + pqxx::work t(conn, "trx"); // fetch all songs - pqxx::result res( t.exec("SELECT * FROM songs") ); + pqxx::result res( t.exec("SELECT * FROM songs WHERE title LIKE 'M%'") ); + unsigned y = 0; for (pqxx::result::const_iterator i = res.begin(); i != res.end(); ++i) { - // std::fprintf(stderr, "%s\n", i["title"].c_str()); + my_draw_text(i["title"].as(widestring()), framebuf, 0, y, 1, 255, 255, 255, fonts); + y += 20; +// std::fprintf(stderr, "%s\n", i["title"].c_str()); } t.commit(); - + + ptc_update(framebuf); sleep(1); } +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); + } + + // 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); + } +} + +int my_draw_text(const widestring &str, unsigned char *buf, int xpos, int ypos, bool real_render, int r, int g, int b, std::vector &fontlist) +{ + 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 = fontlist.begin(); j != fontlist.end(); ++j) { + glyph_index = FT_Get_Char_Index(*j, *i); + if (glyph_index == 0) + continue; + + if (FT_Load_Glyph(*j, glyph_index, FT_LOAD_RENDER)) + throw std::runtime_error("Couldn't load glyph"); + slot = (*j)->glyph; + break; + } + if (glyph_index == 0) { + std::fprintf(stderr, "Warning: Could not find a glyph in any font for U+%x, ignoring\n", *i); + continue; + } + + if (real_render) { + 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++; + } + } + } + + x += slot->advance.x >> 6; + } + + return x; +} + + int main(int argc, char **argv) { - GLWindow glw("CCBS bigscreen", 800, 600, 32, false, 16, -1); +#if __BYTE_ORDER == __LITTLE_ENDIAN + ucs4_iconv = iconv_open("ucs-4le", "utf-8"); +#else + ucs4_iconv = iconv_open("ucs-4be", "utf-8"); +#endif + + ptc_open("CCBS bigscreen", 800, 600); + try { + init_freetype(); pqxx::connection conn("dbname=ccbs host=altersex.samfundet.no user=ccbs password=GeT|>>B_"); FlagTrigger tournament_changed(conn, "active_tournament"); + FlagTrigger rounds_changed(conn, "active_groups"); - // when active_tournament is changed, we destroy everything and start from scratch + // when active_tournament or active_rounds is changed, we destroy everything and start from scratch + // (at least currently) for ( ;; ) { tournament_changed.reset_flag(); + rounds_changed.reset_flag(); init(conn); do { main_loop(conn); conn.get_notifs(); - } while (!tournament_changed.get_flag()); - std::fprintf(stderr, "active_tournament changed, resetting...\n"); + } while (!tournament_changed.get_flag() && !rounds_changed.get_flag()); + std::fprintf(stderr, "active_tournament or active_groups changed, resetting...\n"); } } catch (const std::exception &e) { std::fprintf(stderr, "Exception: %s\n", e.what());