X-Git-Url: https://git.sesse.net/?p=ccbs;a=blobdiff_plain;f=bigscreen%2Fccbs_bigscreen.cpp;h=fb0d75740c1c0875cb0e3f18e38256c929a9f02e;hp=684f423777db0214390df3ae07634984ad3de814;hb=141adc9f5acb9ed1e98a206abb0d2e9cfdce6d2f;hpb=140a0aae7299d15459fe9ec74ad5020887e0a960 diff --git a/bigscreen/ccbs_bigscreen.cpp b/bigscreen/ccbs_bigscreen.cpp index 684f423..fb0d757 100644 --- a/bigscreen/ccbs_bigscreen.cpp +++ b/bigscreen/ccbs_bigscreen.cpp @@ -6,75 +6,10 @@ #include #include FT_FREETYPE_H #include +#include "flagtrigger.h" +#include "widestring.h" -iconv_t ucs4_iconv; - -// UCS-4 string -class widestring : public std::basic_string -{ -public: - void operator= (const char *from) - { - unsigned bytes = std::strlen(from); - char *from_buf = strdup(from); - unsigned *to_buf = new unsigned[bytes + 1]; - - char *inptr = from_buf, *outptr = reinterpret_cast (to_buf); - - size_t in_left = bytes; - size_t out_left = bytes * sizeof(unsigned); - - 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 std::char_traits::assign(unsigned &to, unsigned const &from) -{ - to = from; -} - -template<> -unsigned *std::char_traits::copy(unsigned *to, unsigned const *from, unsigned n) -{ - return static_cast(memcpy(to, from, n * sizeof(unsigned))); -} - -template<> -unsigned *std::char_traits::move(unsigned *to, unsigned const *from, unsigned n) -{ - return static_cast(memmove(to, from, n * sizeof(unsigned))); -} - -template<> -unsigned *std::char_traits::assign(unsigned *to, size_t n, unsigned a) -{ - for (unsigned i = 0; i < n; ++i) - *to++ = a; - return to; -} - - -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: @@ -83,34 +18,7 @@ public: }; Tournament active_tournament; -FT_Face font; - -/* A trigger that sets a flag whenever it's trigged. */ -class FlagTrigger : pqxx::trigger { -private: - bool flag; - -public: - FlagTrigger(pqxx::connection_base &conn, const PGSTD::string &name) - : pqxx::trigger(conn, name), flag(false) {} - virtual ~FlagTrigger() throw () {} - - virtual void operator() (int pid) - { - flag = true; - std::fprintf(stderr, "Received a flag trigger from pid %u\n", pid); - } - - bool get_flag() const - { - return flag; - } - - void reset_flag() - { - flag = false; - } -}; +std::vector fonts; /* A transactor that fetches the current tournament and some information about it. */ class FetchCurrentTournament : public pqxx::transactor<> { @@ -146,6 +54,8 @@ void init(pqxx::connection &conn) } } +unsigned char framebuf[800 * 600 * 4]; + void main_loop(pqxx::connection &conn) { if (active_tournament.id == -1) { @@ -153,50 +63,131 @@ void main_loop(pqxx::connection &conn) 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::logic_error("FreeType init failed."); - if (FT_New_Face(library, "/usr/share/fonts/truetype/msttcorefonts/Georgia.ttf", 0, &font)) - throw std::logic_error("Face opening failed."); - if (FT_Set_Char_Size(font, 0, 12, 96, 96)) - throw std::logic_error("Size set failed."); + 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) { - ucs4_iconv = iconv_open("ucs-4", "utf-8"); - 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());