X-Git-Url: https://git.sesse.net/?p=ccbs;a=blobdiff_plain;f=bigscreen%2Fccbs_bigscreen.cpp;h=fb0d75740c1c0875cb0e3f18e38256c929a9f02e;hp=3b9d6ae506ca8e11ebc4df62a7b8334dbb02948e;hb=141adc9f5acb9ed1e98a206abb0d2e9cfdce6d2f;hpb=a3af80a53451d55958372e9dd88be22159e4186d diff --git a/bigscreen/ccbs_bigscreen.cpp b/bigscreen/ccbs_bigscreen.cpp index 3b9d6ae..fb0d757 100644 --- a/bigscreen/ccbs_bigscreen.cpp +++ b/bigscreen/ccbs_bigscreen.cpp @@ -1,64 +1,193 @@ #include +#include +#include #include #include -#include "glwindow.h" +#include +#include FT_FREETYPE_H +#include +#include "flagtrigger.h" +#include "widestring.h" -/* A trigger that sets a flag whenever it's trigged. */ -class FlagTrigger : pqxx::trigger { +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 transactor that fetches the current tournament and some information about it. */ +class FetchCurrentTournament : public pqxx::transactor<> { private: - bool flag; - + Tournament *tourn; + public: - FlagTrigger(pqxx::connection_base &conn, const PGSTD::string &name) - : pqxx::trigger(conn, name), flag(false) {} - virtual ~FlagTrigger() throw () {} - - virtual void operator() (int pid) + FetchCurrentTournament(Tournament *tourn) : tourn(tourn) {} + void operator() (pqxx::transaction<> &t) { - flag = true; - std::fprintf(stderr, "Received a flag trigger from pid %u\n", pid); - } + pqxx::result res( t.exec("SELECT * FROM bigscreen.active_tournament NATURAL JOIN tournaments") ); + try { + pqxx::result::tuple tournament = res.at(0); - bool get_flag() const - { - return flag; + tourn->id = tournament["tournament"].as(tourn->id); + tourn->name = tournament["tournamentname"].as(tourn->name); + } catch (PGSTD::out_of_range &e) { + tourn->id = -1; + tourn->name = ""; + } } +}; - void reset_flag() - { - flag = false; +void init(pqxx::connection &conn) +{ + conn.perform(FetchCurrentTournament(&active_tournament)); + + if (active_tournament.id == -1) { + std::fprintf(stderr, "No active tournament\n"); + } else { + std::fprintf(stderr, "Current tournament is %d (name: '%s')\n", + 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); + 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());