X-Git-Url: https://git.sesse.net/?p=ccbs;a=blobdiff_plain;f=bigscreen%2Fccbs_bigscreen.cpp;h=b6bf216ac3887f5ab71250faedd1ca3b751d00e8;hp=08d2bf24576fad8da550d4c5f07e7ebdad037638;hb=efda4ad2ce5903026399e0929cb0e78ec4f23b83;hpb=251dc64c47b1dc78e73316e76637986da97fd149

diff --git a/bigscreen/ccbs_bigscreen.cpp b/bigscreen/ccbs_bigscreen.cpp
index 08d2bf2..b6bf216 100644
--- a/bigscreen/ccbs_bigscreen.cpp
+++ b/bigscreen/ccbs_bigscreen.cpp
@@ -1,15 +1,91 @@
 #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>
+
+iconv_t ucs4_iconv;
+
+// UCS-4 string
+class widestring : public std::basic_string<unsigned>
+{
+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<char *> (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<unsigned *> (outptr), std::back_inserter(*this));
+
+		free(from_buf);
+		delete[] to_buf;
+	}
+};
+
+template<>
+void std::char_traits<unsigned>::assign(unsigned &to, unsigned const &from)
+{
+	to = from;
+}
+
+template<>
+unsigned *std::char_traits<unsigned>::copy(unsigned *to, unsigned const *from, unsigned n)
+{
+	return static_cast<unsigned *>(memcpy(to, from, n * sizeof(unsigned)));
+}
+
+template<>
+unsigned *std::char_traits<unsigned>::move(unsigned *to, unsigned const *from, unsigned n)
+{
+	return static_cast<unsigned *>(memmove(to, from, n * sizeof(unsigned)));
+}
+
+template<>
+unsigned *std::char_traits<unsigned>::assign(unsigned *to, size_t n, unsigned a)
+{
+	for (unsigned i = 0; i < n; ++i)
+		*to++ = a;
+	return to;
+}
+
+
+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, FT_Face face);
 
 class Tournament {
 public:
 	int id;
-	std::string name;
+	widestring name;
 };
 
 Tournament active_tournament;
+FT_Face font;
 
 /* A trigger that sets a flag whenever it's trigged. */
 class FlagTrigger : pqxx::trigger {
@@ -72,6 +148,8 @@ void init(pqxx::connection &conn)
 	}
 }
 
+unsigned char framebuf[800 * 600 * 4];
+
 void main_loop(pqxx::connection &conn)
 {
 	if (active_tournament.id == -1) {
@@ -84,18 +162,77 @@ void main_loop(pqxx::connection &conn)
 
 	// fetch all songs
 	pqxx::result res( t.exec("SELECT * FROM songs") );
+	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, font);
+		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::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 * 64, 96, 96))
+		throw std::logic_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_GlyphSlot slot = face->glyph;
+	int x = 0;
+
+	for (widestring::const_iterator i = str.begin(); i != str.end(); ++i) { 
+		int glyph_index = FT_Get_Char_Index(face, *i);
+		if (FT_Load_Glyph(face, glyph_index, FT_LOAD_RENDER))
+			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);
+	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");