Started building font classes

src/render/Font.cpp

@@ -0,0 +1,40 @@
+#include <string.h>
+#include <zlib.h>
+#include "Font.h"
+#include "utility/misc.h"
+
+using WalrusRPG::Font::Font;
+using WalrusRPG::Font::CharacterParameters;
+using WalrusRPG::Graphics::Texture;
+
+Font::Font(Texture& font_tex, WalrusRPG::PIAF::File font_config)
+	: font_tex(font_tex)
+{
+	const uint8_t* ptr = font_config.get();
+	// TODO : parse file
+	// TODO : forgot to put the version and the font type
+	if(strncmp((const char*)ptr, "WFONT", 4) != 0)
+	{
+		// TODO : wrong header
+	}
+	uint32_t expected_checksum = read_big_endian_value<uint32_t>(&ptr[4]);
+	if(crc32(0L, (unsigned char *) (&ptr[8]), 1 + (6*4 + 2)*255))
+	{
+		// TODO : bad checksum
+	}
+	baseline = read_big_endian_value<uint8_t>(&ptr[8]);
+	for (int i = 0; i < 256; ++i)
+	{
+		const uint8_t* current_char = ptr + 9 + (6*4+2)*i;
+		chars[i].dimensions.x = read_big_endian_value<signed>(current_char);
+		chars[i].dimensions.y = read_big_endian_value<signed>(current_char+4);
+		chars[i].dimensions.width = read_big_endian_value<unsigned>(current_char+8);
+		chars[i].dimensions.height = read_big_endian_value<unsigned>(current_char+12);
+		chars[i].x_offset = read_big_endian_value<unsigned>(current_char+16);
+		chars[i].y_offset = read_big_endian_value<unsigned>(current_char+18);
+	}
+}
+
+Font::~Font()
+{
+}

src/render/Font.h

@@ -0,0 +1,35 @@
+#ifndef INCLUDE_FONT_H
+#define INCLUDE_FONT_H
+
+#include "Graphics.h"
+#include "Texture.h"
+#include "piaf/Archive.h"
+#include "utility/Rect.h"
+
+namespace WalrusRPG
+{
+	namespace Font
+	{
+		struct CharacterParameters
+		{
+			// Sprite clip
+			WalrusRPG::Utils::Rect dimensions;
+			// Character rendering offset
+			int8_t x_offset, y_offset;
+		};
+
+		class Font
+		{
+
+		public:
+		 uint8_t baseline;
+		 CharacterParameters chars[256];
+		 WalrusRPG::Graphics::Texture& font_tex;
+
+			Font(WalrusRPG::Graphics::Texture& font_tex, WalrusRPG::PIAF::File font_config);
+			~Font();
+		};
+	}
+}
+
+#endif