X-Git-Url: https://git.sesse.net/?p=ccbs;a=blobdiff_plain;f=bigscreen%2Ffonts.cpp;fp=bigscreen%2Ffonts.cpp;h=b7a4cbd0c9463dc337c4b7cb59ce64b7ae90113d;hp=0000000000000000000000000000000000000000;hb=eb548f080c1bfba8b4e5c23a8d5d1a8da229a78c;hpb=2561f34f160440e5df8c3891a50d6e3c2b83c715

diff --git a/bigscreen/fonts.cpp b/bigscreen/fonts.cpp
new file mode 100644
index 0000000..b7a4cbd
--- /dev/null
+++ b/bigscreen/fonts.cpp
@@ -0,0 +1,89 @@
+#include <vector>
+#include <stdexcept>
+#include "fonts.h"
+
+std::vector<FT_Face> fonts;
+
+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)
+{
+	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 = fonts.begin(); j != fonts.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;
+}