X-Git-Url: https://git.sesse.net/?p=ccbs;a=blobdiff_plain;f=bigscreen%2Fccbs_bigscreen.cpp;h=8e09f0dda132d9465f4060973e928ccf302ef8a6;hp=962de509fd0f6e8a209ed52341ebe79fd80d95b5;hb=e99870759dc603bcce21a792ed30a4b227f11527;hpb=703fd7eae11c453e83954b6d7a3197eb7ba85143 diff --git a/bigscreen/ccbs_bigscreen.cpp b/bigscreen/ccbs_bigscreen.cpp index 962de50..8e09f0d 100644 --- a/bigscreen/ccbs_bigscreen.cpp +++ b/bigscreen/ccbs_bigscreen.cpp @@ -3,24 +3,26 @@ #include #include #include -#include "glwindow.h" +#include +#include FT_FREETYPE_H +#include iconv_t ucs4_iconv; -// UCS-4 string -class widestring : public std::basic_string +// 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); - unsigned *to_buf = new unsigned[bytes + 1]; + 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(unsigned); + size_t out_left = bytes * sizeof(wchar_t); size_t ret = iconv(ucs4_iconv, NULL, NULL, &outptr, &out_left); if (ret == (size_t)(-1)) { @@ -34,46 +36,21 @@ public: } erase(begin(), end()); - std::copy(to_buf, reinterpret_cast (outptr), std::back_inserter(*this)); + 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, FT_Face face, FT_Face symbolface); + class Tournament { public: int id; @@ -81,6 +58,7 @@ public: }; Tournament active_tournament; +FT_Face font, symbolfont; /* A trigger that sets a flag whenever it's trigged. */ class FlagTrigger : pqxx::trigger { @@ -143,6 +121,8 @@ void init(pqxx::connection &conn) } } +unsigned char framebuf[800 * 600 * 4]; + void main_loop(pqxx::connection &conn) { if (active_tournament.id == -1) { @@ -150,25 +130,103 @@ 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, font, symbolfont); + y += 20; +// std::fprintf(stderr, "%s\n", i["title"].c_str()); } t.commit(); - + + ptc_update(framebuf); sleep(1); } +void init_freetype() +{ + FT_Library library; + if (FT_Init_FreeType(&library)) + throw std::runtime_error("FreeType init failed."); + if (FT_New_Face(library, "/usr/share/fonts/truetype/msttcorefonts/Georgia.ttf", 0, &font)) + throw std::runtime_error("Face opening failed."); + if (FT_New_Face(library, "/usr/share/fonts/truetype/freefont/FreeSerif.ttf", 0, &symbolfont)) + throw std::runtime_error("Face opening failed."); + if (FT_Set_Char_Size(font, 0, 12 * 64, 96, 96)) + throw std::runtime_error("Size set failed."); + if (FT_Set_Char_Size(symbolfont, 0, 12 * 64, 96, 96)) + throw std::runtime_error("Size set failed."); +} + +int my_draw_text(const widestring &str, unsigned char *buf, int xpos, int ypos, bool real_render, int r, int g, int b, FT_Face face, FT_Face symbolface) +{ + FT_GlyphSlot slot; + int x = 0; + + for (widestring::const_iterator i = str.begin(); i != str.end(); ++i) { + // try the normal font first, fall back if there's some special character + int glyph_index = FT_Get_Char_Index(face, *i); + if (glyph_index == 0) { + std::fprintf(stderr, "Couldn't find U+%x in primary face, falling back to symbol face\n", + *i); + glyph_index = FT_Get_Char_Index(symbolface, *i); + if (glyph_index == 0) { + std::fprintf(stderr, "Couldn't find U+%x in symbol face, ignoring\n", *i); + continue; + } + if (FT_Load_Glyph(symbolface, glyph_index, FT_LOAD_RENDER)) + throw std::runtime_error("Couldn't load glyph from symbol face"); + slot = symbolface->glyph; + } else { + if (FT_Load_Glyph(face, glyph_index, FT_LOAD_RENDER)) + throw std::runtime_error("Couldn't load glyph from primary face"); + slot = face->glyph; + } + + 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"); + ucs4_iconv = iconv_open("ucs-4le", "utf-8"); // FIXME: will be broken for big endian! + + ptc_open("CCBS bigscreen", 800, 600); -// GLWindow glw("CCBS bigscreen", 800, 600, 32, false, 16, -1); try { + init_freetype(); pqxx::connection conn("dbname=ccbs host=altersex.samfundet.no user=ccbs password=GeT|>>B_"); FlagTrigger tournament_changed(conn, "active_tournament");