#include <cstdio>
+#include <cstring>
+#include <iconv.h>
#include <unistd.h>
#include <pqxx/pqxx>
-#include "glwindow.h"
+#include <ft2build.h>
+#include FT_FREETYPE_H
+#include <tinyptc.h>
+#include <endian.h>
+
+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<char *> (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<wchar_t *> (outptr), std::back_inserter(*this));
+
+ free(from_buf);
+ delete[] to_buf;
+ }
+};
+
+template<>
+void pqxx::from_string<widestring>(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<FT_Face> &fontlist);
+
+class Tournament {
+public:
+ int id;
+ widestring name;
+};
+
+Tournament active_tournament;
+std::vector<FT_Face> fonts;
+
+/* 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;
+ }
+};
+
+/* A transactor that fetches the current tournament and some information about it. */
+class FetchCurrentTournament : public pqxx::transactor<> {
+private:
+ Tournament *tourn;
+
+public:
+ 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);
+
+ 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 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 WHERE title LIKE 'M%'") );
+ unsigned y = 0;
+ for (pqxx::result::const_iterator i = res.begin(); i != res.end(); ++i) {
+ 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<FT_Face> &fontlist)
+{
+ FT_GlyphSlot slot;
+ int x = 0;
+
+ for (widestring::const_iterator i = str.begin(); i != str.end(); ++i) {
+ int glyph_index;
+ for (std::vector<FT_Face>::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 {
- pqxx::connection conn("dbname=ccbs host=sql.samfundet.no user=ccbs password=GeT|>>B_");
- pqxx::work t(conn, "trx");
-
- // fetch all songs
- pqxx::result res( t.exec("SELECT * FROM songs") );
- for (pqxx::result::const_iterator i = res.begin(); i != res.end(); ++i) {
- std::fprintf(stderr, "%s\n", i["title"].c_str());
+ init_freetype();
+ pqxx::connection conn("dbname=ccbs host=altersex.samfundet.no user=ccbs password=GeT|>>B_");
+ FlagTrigger tournament_changed(conn, "active_tournament");
+
+ // when active_tournament is changed, we destroy everything and start from scratch
+ for ( ;; ) {
+ tournament_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");
}
- t.commit();
} catch (const std::exception &e) {
std::fprintf(stderr, "Exception: %s\n", e.what());
exit(1);
projects / ccbs / blobdiff