Added support for loading BMFont bitmap font files with love.graphics.newFont (see issue #190.) Some esoteric BMFont features are not supported.

Moved the Font module Lua wrapper code out of the freetype implementation folder.

--HG--
branch : minor

CMakeLists.txt

@@ -218,6 +218,8 @@ source_group("modules\\filesystem\\physfs" FILES ${LOVE_SRC_MODULE_FILESYSTEM_PH
 #
 
 set(LOVE_SRC_MODULE_FONT_ROOT
+	src/modules/font/BMFontRasterizer.cpp
+	src/modules/font/BMFontRasterizer.h
 	src/modules/font/Font.h
 	src/modules/font/GlyphData.cpp
 	src/modules/font/GlyphData.h
@@ -225,6 +227,8 @@ set(LOVE_SRC_MODULE_FONT_ROOT
 	src/modules/font/ImageRasterizer.h
 	src/modules/font/Rasterizer.cpp
 	src/modules/font/Rasterizer.h
+	src/modules/font/wrap_Font.cpp
+	src/modules/font/wrap_Font.h
 	src/modules/font/wrap_GlyphData.cpp
 	src/modules/font/wrap_GlyphData.h
 	src/modules/font/wrap_Rasterizer.cpp
@@ -236,8 +240,6 @@ set(LOVE_SRC_MODULE_FONT_FREETYPE
 	src/modules/font/freetype/Font.h
 	src/modules/font/freetype/TrueTypeRasterizer.cpp
 	src/modules/font/freetype/TrueTypeRasterizer.h
-	src/modules/font/freetype/wrap_Font.cpp
-	src/modules/font/freetype/wrap_Font.h
 )
 
 set(LOVE_SRC_MODULE_FONT

platform/macosx/love-framework.xcodeproj/project.pbxproj

@@ -277,6 +277,8 @@
 		FA7AA59317F6AC1F00704BE2 /* wrap_Mesh.h in Headers */ = {isa = PBXBuildFile; fileRef = FA7AA59117F6AC1F00704BE2 /* wrap_Mesh.h */; };
 		FA7C937A16DCC6C2006F2BEE /* wrap_Math.cpp in Sources */ = {isa = PBXBuildFile; fileRef = FA7C937516DCC6C2006F2BEE /* wrap_Math.cpp */; };
 		FA7C937B16DCC6C2006F2BEE /* wrap_Math.h in Headers */ = {isa = PBXBuildFile; fileRef = FA7C937616DCC6C2006F2BEE /* wrap_Math.h */; };
+		FA9556CB19D3741A00F29A4C /* BMFontRasterizer.cpp in Sources */ = {isa = PBXBuildFile; fileRef = FA9556C919D3741A00F29A4C /* BMFontRasterizer.cpp */; };
+		FA9556CC19D3741A00F29A4C /* BMFontRasterizer.h in Headers */ = {isa = PBXBuildFile; fileRef = FA9556CA19D3741A00F29A4C /* BMFontRasterizer.h */; };
 		FA9B492A1875EFB900201DA9 /* Texture.h in Headers */ = {isa = PBXBuildFile; fileRef = FA9B49281875EFB900201DA9 /* Texture.h */; };
 		FA9B4A0816E1578300074F42 /* SDL2.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = FA9B4A0716E1578300074F42 /* SDL2.framework */; };
 		FA9FC0B0173D6E3E005027FF /* wrap_Window.cpp in Sources */ = {isa = PBXBuildFile; fileRef = FA9FC0AE173D6E3E005027FF /* wrap_Window.cpp */; };
@@ -846,6 +848,8 @@
 		FA7AA59117F6AC1F00704BE2 /* wrap_Mesh.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = wrap_Mesh.h; sourceTree = "<group>"; };
 		FA7C937516DCC6C2006F2BEE /* wrap_Math.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = wrap_Math.cpp; sourceTree = "<group>"; };
 		FA7C937616DCC6C2006F2BEE /* wrap_Math.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = wrap_Math.h; sourceTree = "<group>"; };
+		FA9556C919D3741A00F29A4C /* BMFontRasterizer.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = BMFontRasterizer.cpp; sourceTree = "<group>"; };
+		FA9556CA19D3741A00F29A4C /* BMFontRasterizer.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = BMFontRasterizer.h; sourceTree = "<group>"; };
 		FA9B49281875EFB900201DA9 /* Texture.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = Texture.h; sourceTree = "<group>"; };
 		FA9B4A0716E1578300074F42 /* SDL2.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = SDL2.framework; path = /Library/Frameworks/SDL2.framework; sourceTree = "<absolute>"; };
 		FA9FC0AE173D6E3E005027FF /* wrap_Window.cpp */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.cpp.cpp; path = wrap_Window.cpp; sourceTree = "<group>"; };
@@ -1038,8 +1042,6 @@
 				615E0F450F2B7BA25EE679A6 /* Font.h */,
 				0C30420F7FD3038C721223A5 /* TrueTypeRasterizer.cpp */,
 				0B727D416262392743091BC3 /* TrueTypeRasterizer.h */,
-				232D67C67BEE54B776420682 /* wrap_Font.cpp */,
-				202650DE4F267CD3082A1B30 /* wrap_Font.h */,
 			);
 			path = freetype;
 			sourceTree = "<group>";
@@ -1165,6 +1167,8 @@
 		196B6B2E1BC81F47771E6467 /* font */ = {
 			isa = PBXGroup;
 			children = (
+				FA9556C919D3741A00F29A4C /* BMFontRasterizer.cpp */,
+				FA9556CA19D3741A00F29A4C /* BMFontRasterizer.h */,
 				2E9B5D9926034F9172215D5E /* Font.h */,
 				12BB56F127170B3709670896 /* freetype */,
 				74003CB27FA762A021183AD5 /* GlyphData.cpp */,
@@ -1173,6 +1177,8 @@
 				36465ABA28FB06F4333C3F07 /* ImageRasterizer.h */,
 				1B1C4E4D288A1D2F29E57B1B /* Rasterizer.cpp */,
 				08D24B70441A2496160C0849 /* Rasterizer.h */,
+				232D67C67BEE54B776420682 /* wrap_Font.cpp */,
+				202650DE4F267CD3082A1B30 /* wrap_Font.h */,
 				1B4E22F1388E2B2E76E3377B /* wrap_GlyphData.cpp */,
 				3547706F2E7D43212CB40D04 /* wrap_GlyphData.h */,
 				11745DE315E859F71E881D76 /* wrap_Rasterizer.cpp */,
@@ -2071,6 +2077,7 @@
 				FA0A4BF5182E1AD600E1E4D2 /* MotorJoint.h in Headers */,
 				FA5FDC841788D548002F0ED2 /* unix.h in Headers */,
 				FA0A4BF1182E0C2800E1E4D2 /* b2MotorJoint.h in Headers */,
+				FA9556CC19D3741A00F29A4C /* BMFontRasterizer.h in Headers */,
 				FA5FDC851788D548002F0ED2 /* utility.h in Headers */,
 				FAF6704D18184FF800DBDEEA /* wuff.h in Headers */,
 				FA0F0D5C19A2CFEB0010A75B /* gladfuncs.hpp in Headers */,
@@ -2113,7 +2120,7 @@
 		08FB7793FE84155DC02AAC07 /* Project object */ = {
 			isa = PBXProject;
 			attributes = {
-				LastUpgradeCheck = 0510;
+				LastUpgradeCheck = 0600;
 			};
 			buildConfigurationList = 1DEB928908733DD80010E9CD /* Build configuration list for PBXProject "love-framework" */;
 			compatibilityVersion = "Xcode 3.2";
@@ -2360,6 +2367,7 @@
 				FAF272A616E3D44400CC193A /* LuaThread.cpp in Sources */,
 				FA0A4BF0182E0C2800E1E4D2 /* b2MotorJoint.cpp in Sources */,
 				FAF272A816E3D44400CC193A /* ThreadModule.cpp in Sources */,
+				FA9556CB19D3741A00F29A4C /* BMFontRasterizer.cpp in Sources */,
 				FA01BE1E1878E35B00640047 /* wrap_Texture.cpp in Sources */,
 				FAF272AA16E3D44400CC193A /* wrap_Channel.cpp in Sources */,
 				FAF272AC16E3D44400CC193A /* wrap_LuaThread.cpp in Sources */,

src/modules/filesystem/physfs/Filesystem.cpp

@@ -474,7 +474,7 @@ bool Filesystem::remove(const char *file)
 	return true;
 }
 
-Data *Filesystem::read(const char *filename, int64 size) const
+FileData *Filesystem::read(const char *filename, int64 size) const
 {
 	File file(filename);
 

src/modules/filesystem/physfs/Filesystem.h

@@ -202,7 +202,7 @@ public:
 	 * @param filename The name of the file to read from.
 	 * @param size The size in bytes of the data to read.
 	 **/
-	Data *read(const char *filename, int64 size = File::ALL) const;
+	FileData *read(const char *filename, int64 size = File::ALL) const;
 
 	/**
 	 * Write data to a file.

src/modules/font/BMFontRasterizer.cpp

@@ -0,0 +1,317 @@
+/**
+ * Copyright (c) 2006-2014 LOVE Development Team
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty.  In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ *    claim that you wrote the original software. If you use this software
+ *    in a product, an acknowledgment in the product documentation would be
+ *    appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ *    misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ **/
+
+// LOVE
+#include "BMFontRasterizer.h"
+#include "filesystem/physfs/Filesystem.h"
+#include "image/Image.h"
+
+// C++
+#include <sstream>
+#include <vector>
+
+// C
+#include <cstdlib>
+#include <cstring>
+
+namespace love
+{
+namespace font
+{
+
+namespace
+{
+
+/**
+ * Helper class for parsing lines in BMFont definition files.
+ * NOTE: Does not properly handle multi-value attributes (e.g. 'padding' or
+ * 'spacing'.)
+ **/
+class BMFontLine
+{
+public:
+
+	BMFontLine(const std::string &line);
+
+	const std::string &getTag() const { return tag; }
+
+	int getAttributeInt(const char *name) const;
+	std::string getAttributeString(const char *name) const;
+
+private:
+
+	std::string tag;
+	std::map<std::string, std::string> attributes;
+
+};
+
+// This is not entirely robust...
+BMFontLine::BMFontLine(const std::string &line)
+{
+	// The tag name should always be at the start of the line.
+	tag = line.substr(0, line.find(' '));
+
+	size_t startpos = 0;
+
+	while (startpos < line.length())
+	{
+		// Find the next '=', which indicates a key-value pair.
+		size_t fpos = line.find('=', startpos);
+		if (fpos == std::string::npos || fpos + 1 >= line.length())
+			break;
+
+		// The key should be between a space character and the '='.
+		size_t keystart = line.rfind(' ', fpos);
+		if (keystart == std::string::npos)
+			break;
+
+		keystart++;
+
+		std::string key = line.substr(keystart, fpos - keystart);
+
+		size_t valstart = fpos + 1;
+		size_t valend = valstart + 1;
+
+		if (line[valstart] == '"')
+		{
+			// Values can be surrounded by quotes (a literal string.)
+			valstart++;
+			valend = line.find('"', valstart) - 1;
+		}
+		else
+		{
+			// Otherwise look for the next space character after the '='.
+			valend = line.find(' ', valstart + 1) - 1;
+		}
+
+		valend = std::min(valend, line.length() - 1);
+
+		attributes[key] = line.substr(valstart, valend - valstart + 1);
+
+		startpos = valend + 1;
+	}
+}
+
+int BMFontLine::getAttributeInt(const char *name) const
+{
+	auto it = attributes.find(name);
+	if (it == attributes.end())
+		return 0;
+
+	return (int) strtol(it->second.c_str(), nullptr, 10);
+}
+
+std::string BMFontLine::getAttributeString(const char *name) const
+{
+	auto it = attributes.find(name);
+	if (it == attributes.end())
+		return "";
+
+	return it->second;
+}
+
+} // anonymous namespace
+
+
+BMFontRasterizer::BMFontRasterizer(love::filesystem::FileData *fontdef, const std::vector<image::ImageData *> &imagelist)
+	: fontSize(0)
+	, unicode(false)
+	, lineHeight(0)
+{
+	const std::string &filename = fontdef->getFilename();
+
+	size_t separatorpos = filename.rfind('/');
+	if (separatorpos != std::string::npos)
+		fontFolder = filename.substr(0, separatorpos);
+
+	// The parseConfig function will try to load any missing page images.
+	for (size_t i = 0; i < imagelist.size(); i++)
+		images[i] = imagelist[i];
+
+	std::string configtext((const char *) fontdef->getData(), fontdef->getSize());
+
+	parseConfig(configtext);
+}
+
+BMFontRasterizer::~BMFontRasterizer()
+{
+}
+
+void BMFontRasterizer::parseConfig(const std::string &configtext)
+{
+	std::stringstream ss(configtext);
+	std::string line;
+
+	while (std::getline(ss, line))
+	{
+		BMFontLine cline(line);
+
+		const std::string &tag = cline.getTag();
+
+		if (tag == "info")
+		{
+			fontSize = cline.getAttributeInt("size");
+			unicode  = cline.getAttributeInt("unicode") > 0;
+		}
+		else if (tag == "common")
+		{
+			lineHeight = cline.getAttributeInt("lineHeight");
+			metrics.ascent = cline.getAttributeInt("base");
+			metrics.height = lineHeight;
+		}
+		else if (tag == "page")
+		{
+			size_t pageindex = (size_t) cline.getAttributeInt("id");
+			std::string filename = cline.getAttributeString("file");
+
+			// The file name is relative to the font file's folder.
+			if (!fontFolder.empty())
+				filename = fontFolder + "/" + filename;
+
+			// Load the page file from disk into an ImageData, if necessary.
+			if (images[pageindex].get() == nullptr)
+			{
+				using namespace love::filesystem::physfs;
+
+				Filesystem *filesystem = Module::getInstance<Filesystem>(Module::M_FILESYSTEM);
+				image::Image *imagemodule = Module::getInstance<image::Image>(Module::M_IMAGE);
+
+				if (!filesystem)
+					throw love::Exception("Filesystem module not loaded!");
+				if (!imagemodule)
+					throw love::Exception("Image module not loaded!");
+
+				// Release these variables right away since StrongRef retains.
+				StrongRef<filesystem::FileData> data = filesystem->read(filename.c_str());
+				data->release();
+
+				images[pageindex].set(imagemodule->newImageData(data.get()));
+				images[pageindex]->release();
+			}
+		}
+		else if (tag == "char")
+		{
+			BMFontCharacter c = {};
+
+			uint32 id = (uint32) cline.getAttributeInt("id");
+
+			c.x    = cline.getAttributeInt("x");
+			c.y    = cline.getAttributeInt("y");
+			c.page = cline.getAttributeInt("page");
+
+			c.metrics.width    =  cline.getAttributeInt("width");
+			c.metrics.height   =  cline.getAttributeInt("height");
+			c.metrics.bearingX =  cline.getAttributeInt("xoffset");
+			c.metrics.bearingY = -cline.getAttributeInt("yoffset");
+			c.metrics.advance  =  cline.getAttributeInt("xadvance");
+
+			characters[id] = c;
+		}
+		else if (tag == "kerning")
+		{
+			// TODO
+		}
+	}
+
+	if (lineHeight == 0)
+		throw love::Exception("Invalid BMFont file (missing line height attribute?)");
+
+	if (characters.size() == 0)
+		throw love::Exception("Invalid BMFont file (no character definitions?)");
+
+	// Verify the glyph character attributes.
+	for (const auto &cpair : characters)
+	{
+		const BMFontCharacter &c = cpair.second;
+
+		if (!unicode && cpair.first > 127)
+			throw love::Exception("Invalid BMFont character id (only unicode and ASCII are supported)");
+
+		if (c.page < 0 || images[c.page].get() == nullptr)
+			throw love::Exception("Invalid BMFont character page id: %d", c.page);
+
+		const image::ImageData *id = images[c.page].get();
+
+		if (!id->inside(c.x, c.y) || !id->inside(c.x + c.metrics.width, c.y + c.metrics.height))
+			throw love::Exception("Invalid BMFont character coordinates.");
+	}
+}
+
+int BMFontRasterizer::getLineHeight() const
+{
+	return lineHeight;
+}
+
+GlyphData *BMFontRasterizer::getGlyphData(uint32 glyph) const
+{
+	auto it = characters.find(glyph);
+
+	// Return an empty GlyphData if we don't have the glyph character.
+	if (it == characters.end())
+		return new GlyphData(glyph, GlyphMetrics(), GlyphData::FORMAT_RGBA);
+
+	const BMFontCharacter &c = it->second;
+	GlyphData *g = new GlyphData(glyph, c.metrics, GlyphData::FORMAT_RGBA);
+
+	const auto &imagepair = images.find(c.page);
+
+	if (imagepair == images.end())
+	{
+		g->release();
+		return new GlyphData(glyph, GlyphMetrics(), GlyphData::FORMAT_RGBA);
+	}
+
+	image::ImageData *imagedata = imagepair->second.get();
+	image::pixel *pixels = (image::pixel *) g->getData();
+	const image::pixel *ipixels = (const image::pixel *) imagedata->getData();
+
+	love::thread::Lock lock(imagedata->getMutex());
+
+	// Copy the subsection of the texture from the ImageData to the GlyphData.
+	for (int y = 0; y < c.metrics.height; y++)
+	{
+		size_t idindex = (c.y + y) * imagedata->getWidth() + c.x;
+		memcpy(&pixels[y * c.metrics.width], &ipixels[idindex], sizeof(image::pixel) * c.metrics.width);
+	}
+
+	return g;
+}
+
+int BMFontRasterizer::getGlyphCount() const
+{
+	return (int) characters.size();
+}
+
+bool BMFontRasterizer::hasGlyph(uint32 glyph) const
+{
+	return characters.find(glyph) != characters.end();
+}
+
+bool BMFontRasterizer::accepts(love::filesystem::FileData *fontdef)
+{
+	const char *data = (const char *) fontdef->getData();
+
+	// Check if the "info" tag is at the start of the file. This is a truly
+	// crappy test. Is the tag even guaranteed to be at the start?
+	return fontdef->getSize() > 4 && memcmp(data, "info", 4) == 0;
+}
+
+} // font
+} // love

src/modules/font/BMFontRasterizer.h

@@ -0,0 +1,85 @@
+/**
+ * Copyright (c) 2006-2014 LOVE Development Team
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty.  In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ *    claim that you wrote the original software. If you use this software
+ *    in a product, an acknowledgment in the product documentation would be
+ *    appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ *    misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ **/
+
+#ifndef LOVE_FONT_BMFONT_RASTERIZER_H
+#define LOVE_FONT_BMFONT_RASTERIZER_H
+
+// LOVE
+#include "Rasterizer.h"
+#include "image/ImageData.h"
+
+// C++
+#include <map>
+#include <vector>
+
+namespace love
+{
+namespace font
+{
+
+/**
+ * Rasterizer for BMFont bitmap fonts.
+ **/
+class BMFontRasterizer : public Rasterizer
+{
+public:
+
+	BMFontRasterizer(love::filesystem::FileData *fontdef, const std::vector<image::ImageData *> &imagelist);
+	virtual ~BMFontRasterizer();
+
+	// Implements Rasterizer.
+	int getLineHeight() const override;
+	GlyphData *getGlyphData(uint32 glyph) const override;
+	int getGlyphCount() const override;
+	bool hasGlyph(uint32 glyph) const override;
+
+	static bool accepts(love::filesystem::FileData *fontdef);
+
+private:
+
+	struct BMFontCharacter
+	{
+		int x;
+		int y;
+		int page;
+		GlyphMetrics metrics;
+	};
+
+	void parseConfig(const std::string &config);
+
+	std::string fontFolder;
+
+	// Image pages, indexed by their page id.
+	std::map<int, StrongRef<image::ImageData>> images;
+
+	// Glyph characters, indexed by their glyph id.
+	std::map<uint32, BMFontCharacter> characters;
+
+	int fontSize;
+	bool unicode;
+
+	int lineHeight;
+
+}; // BMFontRasterizer
+
+} // font
+} // love
+
+#endif // LOVE_FONT_BMFONT_RASTERIZER_H

src/modules/font/Font.h

@@ -24,11 +24,13 @@
 // LOVE
 #include "Rasterizer.h"
 #include "image/ImageData.h"
+#include "filesystem/FileData.h"
 #include "common/Module.h"
 #include "common/int.h"
 
-// STD
+// C++
 #include <string>
+#include <vector>
 
 namespace love
 {
@@ -42,16 +44,20 @@ public:
 
 	virtual ~Font() {}
 
-	// Implements Module.
-	virtual ModuleType getModuleType() const { return M_FONT; }
+	virtual Rasterizer *newRasterizer(love::filesystem::FileData *data) = 0;
+
+	virtual Rasterizer *newTrueTypeRasterizer(love::filesystem::FileData *data, int size) = 0;
+
+	virtual Rasterizer *newBMFontRasterizer(love::filesystem::FileData *fontdef, const std::vector<image::ImageData *> &images) = 0;
+
+	virtual Rasterizer *newImageRasterizer(love::image::ImageData *data, const std::string &glyphs) = 0;
+	virtual Rasterizer *newImageRasterizer(love::image::ImageData *data, uint32 *glyphs, int length) = 0;
 
-	virtual Rasterizer *newRasterizer(Data *data, int size) = 0;
-	virtual Rasterizer *newRasterizer(love::image::ImageData *data, const std::string &glyphs) = 0;
-	virtual Rasterizer *newRasterizer(love::image::ImageData *data, uint32 *glyphs, int length) = 0;
 	virtual GlyphData *newGlyphData(Rasterizer *r, const std::string &glyph) = 0;
 	virtual GlyphData *newGlyphData(Rasterizer *r, uint32 glyph) = 0;
 
-	// Implement Module
+	// Implement Module.
+	virtual ModuleType getModuleType() const { return M_FONT; }
 	virtual const char *getName() const = 0;
 
 }; // Font

src/modules/font/ImageRasterizer.cpp

@@ -53,8 +53,7 @@ int ImageRasterizer::getLineHeight() const
 
 GlyphData *ImageRasterizer::getGlyphData(uint32 glyph) const
 {
-	GlyphMetrics gm;
-	memset(&gm, 0, sizeof(GlyphMetrics));
+	GlyphMetrics gm = {};
 
 	// Set relevant glyph metrics if the glyph is in this ImageFont
 	std::map<uint32, ImageGlyphData>::const_iterator it = imageGlyphs.find(glyph);

src/modules/font/freetype/Font.cpp

@@ -22,6 +22,7 @@
 
 #include "TrueTypeRasterizer.h"
 #include "font/ImageRasterizer.h"
+#include "font/BMFontRasterizer.h"
 
 #include "libraries/utf8/utf8.h"
 
@@ -35,7 +36,7 @@ namespace freetype
 Font::Font()
 {
 	if (FT_Init_FreeType(&library))
-		throw love::Exception("TrueTypeFont Loading error: FT_Init_FreeType failed\n");
+		throw love::Exception("TrueTypeFont Loading error: FT_Init_FreeType failed");
 }
 
 Font::~Font()
@@ -43,17 +44,30 @@ Font::~Font()
 	FT_Done_FreeType(library);
 }
 
-Rasterizer *Font::newRasterizer(Data *data, int size)
+Rasterizer *Font::newRasterizer(love::filesystem::FileData *data)
+{
+	if (TrueTypeRasterizer::accepts(library, data))
+		return newTrueTypeRasterizer(data, 12);
+	else if (BMFontRasterizer::accepts(data))
+		return newBMFontRasterizer(data, std::vector<image::ImageData *>());
+
+	throw love::Exception("Invalid font file: %s", data->getFilename().c_str());
+}
+
+Rasterizer *Font::newTrueTypeRasterizer(love::filesystem::FileData *data, int size)
 {
 	return new TrueTypeRasterizer(library, data, size);
 }
 
-Rasterizer *Font::newRasterizer(love::image::ImageData *data, const std::string &text)
+Rasterizer *Font::newBMFontRasterizer(love::filesystem::FileData *fontdef, const std::vector<image::ImageData *> &images)
 {
-	size_t strlen = text.size();
-	size_t numglyphs = 0;
+	return new BMFontRasterizer(fontdef, images);
+}
 
-	uint32 *glyphs = new uint32[strlen];
+Rasterizer *Font::newImageRasterizer(love::image::ImageData *data, const std::string &text)
+{
+	std::vector<uint32> glyphs;
+	glyphs.reserve(text.size());
 
 	try
 	{
@@ -61,21 +75,17 @@ Rasterizer *Font::newRasterizer(love::image::ImageData *data, const std::string
 		utf8::iterator<std::string::const_iterator> end(text.end(), text.begin(), text.end());
 
 		while (i != end)
-			glyphs[numglyphs++] = *i++;
+			glyphs.push_back(*i++);
 	}
 	catch (utf8::exception &e)
 	{
-		delete [] glyphs;
 		throw love::Exception("Decoding error: %s", e.what());
 	}
 
-	Rasterizer *r = newRasterizer(data, glyphs, numglyphs);
-	delete [] glyphs;
-
-	return r;
+	return newImageRasterizer(data, &glyphs[0], glyphs.size());
 }
 
-Rasterizer *Font::newRasterizer(love::image::ImageData *data, uint32 *glyphs, int numglyphs)
+Rasterizer *Font::newImageRasterizer(love::image::ImageData *data, uint32 *glyphs, int numglyphs)
 {
 	return new ImageRasterizer(data, glyphs, numglyphs);
 }

src/modules/font/freetype/Font.h

@@ -25,11 +25,7 @@
 #include "font/Font.h"
 
 // FreeType2
-#ifdef LOVE_MACOSX_USE_FRAMEWORKS
-#include <freetype/ft2build.h>
-#else
 #include <ft2build.h>
-#endif
 #include FT_FREETYPE_H
 #include FT_GLYPH_H
 
@@ -45,16 +41,18 @@ class Font : public love::font::Font
 public:
 
 	Font();
-
-	/**
-	 * Destructor.
-	 **/
 	virtual ~Font();
 
 	// Implements Font
-	Rasterizer *newRasterizer(Data *data, int size);
-	Rasterizer *newRasterizer(love::image::ImageData *data, const std::string &text);
-	Rasterizer *newRasterizer(love::image::ImageData *data, uint32 *glyphs, int numglyphs);
+	Rasterizer *newRasterizer(love::filesystem::FileData *data);
+
+	Rasterizer *newTrueTypeRasterizer(love::filesystem::FileData *data, int size);
+
+	Rasterizer *newBMFontRasterizer(love::filesystem::FileData *fontdef, const std::vector<image::ImageData *> &images);
+
+	Rasterizer *newImageRasterizer(love::image::ImageData *data, const std::string &text);
+	Rasterizer *newImageRasterizer(love::image::ImageData *data, uint32 *glyphs, int numglyphs);
+
 	GlyphData *newGlyphData(Rasterizer *r, const std::string &glyph);
 	GlyphData *newGlyphData(Rasterizer *r, uint32 glyph);
 
@@ -65,6 +63,7 @@ private:
 
 	// FreeType library
 	FT_Library library;
+
 }; // Font
 
 } // freetype

src/modules/font/freetype/TrueTypeRasterizer.cpp

@@ -30,7 +30,7 @@ namespace font
 namespace freetype
 {
 
-TrueTypeRasterizer::TrueTypeRasterizer(FT_Library library, Data *data, int size)
+TrueTypeRasterizer::TrueTypeRasterizer(FT_Library library, love::filesystem::FileData *data, int size)
 	: data(data)
 {
 	FT_Error err = FT_Err_Ok;
@@ -150,6 +150,15 @@ bool TrueTypeRasterizer::hasGlyph(uint32 glyph) const
 	return FT_Get_Char_Index(face, glyph) != 0;
 }
 
+bool TrueTypeRasterizer::accepts(FT_Library library, love::filesystem::FileData *data)
+{
+	const FT_Byte *fbase = (const FT_Byte *) data->getData();
+	FT_Long fsize = (FT_Long) data->getSize();
+
+	// Pasing in -1 for the face index lets us test if the data is valid.
+	return FT_New_Memory_Face(library, fbase, fsize, -1, nullptr) == 0;
+}
+
 } // freetype
 } // font
 } // love

src/modules/font/freetype/TrueTypeRasterizer.h

@@ -25,7 +25,7 @@
 #include "filesystem/File.h"
 #include "font/Rasterizer.h"
 
-// TrueType2
+// FreeType2
 #include <ft2build.h>
 #include FT_FREETYPE_H
 #include FT_GLYPH_H
@@ -43,7 +43,8 @@ namespace freetype
 class TrueTypeRasterizer : public Rasterizer
 {
 public:
-	TrueTypeRasterizer(FT_Library library, Data *data, int size);
+
+	TrueTypeRasterizer(FT_Library library, love::filesystem::FileData *data, int size);
 	virtual ~TrueTypeRasterizer();
 
 	// Implement Rasterizer
@@ -52,14 +53,17 @@ public:
 	virtual int getGlyphCount() const;
 	virtual bool hasGlyph(uint32 glyph) const;
 
+	static bool accepts(FT_Library library, love::filesystem::FileData *data);
+
 private:
 
 	// TrueType face
 	FT_Face face;
 
 	// File data
-	Object::StrongRef<Data> data;
-}; // FreetypeRasterizer
+	StrongRef<love::filesystem::FileData> data;
+
+}; // TrueTypeRasterizer
 
 } // freetype
 } // font

src/modules/font/freetype/wrap_Font.cpp

@@ -1,128 +0,0 @@
-/**
- * Copyright (c) 2006-2014 LOVE Development Team
- *
- * This software is provided 'as-is', without any express or implied
- * warranty.  In no event will the authors be held liable for any damages
- * arising from the use of this software.
- *
- * Permission is granted to anyone to use this software for any purpose,
- * including commercial applications, and to alter it and redistribute it
- * freely, subject to the following restrictions:
- *
- * 1. The origin of this software must not be misrepresented; you must not
- *    claim that you wrote the original software. If you use this software
- *    in a product, an acknowledgment in the product documentation would be
- *    appreciated but is not required.
- * 2. Altered source versions must be plainly marked as such, and must not be
- *    misrepresented as being the original software.
- * 3. This notice may not be removed or altered from any source distribution.
- **/
-
-#include "wrap_Font.h"
-
-#include "Font.h"
-
-#include "font/wrap_GlyphData.h"
-#include "font/wrap_Rasterizer.h"
-
-#include "filesystem/wrap_Filesystem.h"
-
-#include "TrueTypeRasterizer.h"
-
-namespace love
-{
-namespace font
-{
-namespace freetype
-{
-
-#define instance() (Module::getInstance<Font>(Module::M_FONT))
-
-int w_newRasterizer(lua_State *L)
-{
-	Rasterizer *t = nullptr;
-
-	if (luax_istype(L, 1, IMAGE_IMAGE_DATA_T))
-	{
-		love::image::ImageData *d = luax_checktype<love::image::ImageData>(L, 1, "ImageData", IMAGE_IMAGE_DATA_T);
-		const char *g = luaL_checkstring(L, 2);
-		std::string glyphs(g);
-		luax_catchexcept(L, [&](){ t = instance()->newRasterizer(d, glyphs); });
-	}
-	else if (lua_isstring(L, 1) || luax_istype(L, 1, FILESYSTEM_FILE_T) || luax_istype(L, 1, FILESYSTEM_FILE_DATA_T))
-	{
-		love::filesystem::FileData *d = love::filesystem::luax_getfiledata(L, 1);
-		int size = luaL_checkint(L, 2);
-		luax_catchexcept(L,
-			[&]() { t = instance()->newRasterizer(d, size); },
-			[&]() { d->release(); }
-		);
-	}
-	else
-		return luaL_argerror(L, 1, "expected ImageData, filename, or FileData");
-
-	luax_pushtype(L, "Rasterizer", FONT_RASTERIZER_T, t);
-	t->release();
-	return 1;
-}
-
-int w_newGlyphData(lua_State *L)
-{
-	Rasterizer *r = luax_checkrasterizer(L, 1);
-	GlyphData *t = nullptr;
-
-	// newGlyphData accepts a unicode character or a codepoint number.
-	if (lua_type(L, 2) == LUA_TSTRING)
-	{
-		std::string glyph = luax_checkstring(L, 2);
-		luax_catchexcept(L, [&](){ t = instance()->newGlyphData(r, glyph); });
-	}
-	else
-	{
-		uint32 g = (uint32) luaL_checknumber(L, 2);
-		t = instance()->newGlyphData(r, g);
-	}
-
-	luax_pushtype(L, "GlyphData", FONT_GLYPH_DATA_T, t);
-	t->release();
-	return 1;
-}
-
-// List of functions to wrap.
-static const luaL_Reg functions[] =
-{
-	{ "newRasterizer",  w_newRasterizer },
-	{ "newGlyphData",  w_newGlyphData },
-	{ 0, 0 }
-};
-
-static const lua_CFunction types[] =
-{
-	luaopen_glyphdata,
-	luaopen_rasterizer,
-	0
-};
-
-extern "C" int luaopen_love_font(lua_State *L)
-{
-	Font *instance = instance();
-	if (instance == nullptr)
-	{
-		luax_catchexcept(L, [&](){ instance = new Font(); });
-	}
-	else
-		instance->retain();
-
-	WrappedModule w;
-	w.module = instance;
-	w.name = "font";
-	w.flags = MODULE_T;
-	w.functions = functions;
-	w.types = types;
-
-	return luax_register_module(L, w);
-}
-
-} // freetype
-} // font
-} // love

src/modules/font/wrap_Font.cpp

@@ -0,0 +1,209 @@
+/**
+ * Copyright (c) 2006-2014 LOVE Development Team
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty.  In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ *    claim that you wrote the original software. If you use this software
+ *    in a product, an acknowledgment in the product documentation would be
+ *    appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ *    misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ **/
+
+#include "wrap_Font.h"
+
+#include "Font.h"
+#include "freetype/Font.h"
+
+#include "wrap_GlyphData.h"
+#include "wrap_Rasterizer.h"
+
+#include "filesystem/wrap_Filesystem.h"
+
+namespace love
+{
+namespace font
+{
+
+#define instance() (Module::getInstance<Font>(Module::M_FONT))
+
+int w_newRasterizer(lua_State *L)
+{
+	if (lua_isnoneornil(L, 2))
+	{
+		// Single argument: call Font::newRasterizer.
+		Rasterizer *t = nullptr;
+		filesystem::FileData *d = filesystem::luax_getfiledata(L, 1);
+
+		luax_catchexcept(L,
+			[&]() { t = instance()->newRasterizer(d); },
+			[&]() { d->release(); }
+		);
+
+		luax_pushtype(L, "Rasterizer", FONT_RASTERIZER_T, t);
+		t->release();
+		return 1;
+	}
+	else if (lua_type(L, 2) == LUA_TNUMBER)
+	{
+		// Second argument is a number: call newTrueTypeRasterizer.
+		return w_newTrueTypeRasterizer(L);
+	}
+	else
+	{
+		// Otherwise call newBMFontRasterizer.
+		return w_newBMFontRasterizer(L);
+	}
+}
+
+int w_newTrueTypeRasterizer(lua_State *L)
+{
+	Rasterizer *t = nullptr;
+
+	filesystem::FileData *d = filesystem::luax_getfiledata(L, 1);
+	int size = luaL_optint(L, 2, 12);
+
+	luax_catchexcept(L,
+		[&]() { t = instance()->newTrueTypeRasterizer(d, size); },
+		[&]() { d->release(); }
+	);
+
+	luax_pushtype(L, "Rasterizer", FONT_RASTERIZER_T, t);
+	t->release();
+	return 1;
+}
+
+static void convimagedata(lua_State *L, int idx)
+{
+	if (lua_isstring(L, idx) || luax_istype(L, idx, FILESYSTEM_FILE_T) || luax_istype(L, idx, FILESYSTEM_FILE_DATA_T))
+		luax_convobj(L, idx, "image", "newImageData");
+}
+
+int w_newBMFontRasterizer(lua_State *L)
+{
+	Rasterizer *t = nullptr;
+
+	filesystem::FileData *d = filesystem::luax_getfiledata(L, 1);
+	std::vector<image::ImageData *> images;
+
+	if (lua_istable(L, 2))
+	{
+		for (int i = 1; i <= (int) lua_objlen(L, 2); i++)
+		{
+			lua_rawgeti(L, 2, i);
+
+			convimagedata(L, -1);
+			image::ImageData *id = luax_checktype<image::ImageData>(L, -1, "ImageData", IMAGE_IMAGE_DATA_T);
+			images.push_back(id);
+			id->retain();
+
+			lua_pop(L, 1);
+		}
+	}
+	else
+	{
+		for (int i = 2; i <= lua_gettop(L); i++)
+		{
+			convimagedata(L, i);
+			image::ImageData *id = luax_checktype<image::ImageData>(L, i, "ImageData", IMAGE_IMAGE_DATA_T);
+			images.push_back(id);
+			id->retain();
+		}
+	}
+
+	luax_catchexcept(L,
+		[&]() { t = instance()->newBMFontRasterizer(d, images); },
+		[&]() { d->release(); for (auto id : images) id->release(); }
+	);
+
+	luax_pushtype(L, "Rasterizer", FONT_RASTERIZER_T, t);
+	t->release();
+	return 1;
+}
+
+int w_newImageRasterizer(lua_State *L)
+{
+	Rasterizer *t = nullptr;
+
+	convimagedata(L, 1);
+
+	image::ImageData *d = luax_checktype<image::ImageData>(L, 1, "ImageData", IMAGE_IMAGE_DATA_T);
+	std::string glyphs = luax_checkstring(L, 2);
+
+	luax_catchexcept(L, [&](){ t = instance()->newImageRasterizer(d, glyphs); });
+
+	luax_pushtype(L, "Rasterizer", FONT_RASTERIZER_T, t);
+	t->release();
+	return 1;
+}
+
+int w_newGlyphData(lua_State *L)
+{
+	Rasterizer *r = luax_checkrasterizer(L, 1);
+	GlyphData *t = nullptr;
+
+	// newGlyphData accepts a unicode character or a codepoint number.
+	if (lua_type(L, 2) == LUA_TSTRING)
+	{
+		std::string glyph = luax_checkstring(L, 2);
+		luax_catchexcept(L, [&](){ t = instance()->newGlyphData(r, glyph); });
+	}
+	else
+	{
+		uint32 g = (uint32) luaL_checknumber(L, 2);
+		t = instance()->newGlyphData(r, g);
+	}
+
+	luax_pushtype(L, "GlyphData", FONT_GLYPH_DATA_T, t);
+	t->release();
+	return 1;
+}
+
+// List of functions to wrap.
+static const luaL_Reg functions[] =
+{
+	{ "newRasterizer",  w_newRasterizer },
+	{ "newTrueTypeRasterizer", w_newTrueTypeRasterizer },
+	{ "newBMFontRasterizer", w_newBMFontRasterizer },
+	{ "newImageRasterizer", w_newImageRasterizer },
+	{ "newGlyphData",  w_newGlyphData },
+	{ 0, 0 }
+};
+
+static const lua_CFunction types[] =
+{
+	luaopen_glyphdata,
+	luaopen_rasterizer,
+	0
+};
+
+extern "C" int luaopen_love_font(lua_State *L)
+{
+	Font *instance = instance();
+	if (instance == nullptr)
+	{
+		luax_catchexcept(L, [&](){ instance = new freetype::Font(); });
+	}
+	else
+		instance->retain();
+
+	WrappedModule w;
+	w.module = instance;
+	w.name = "font";
+	w.flags = MODULE_T;
+	w.functions = functions;
+	w.types = types;
+
+	return luax_register_module(L, w);
+}
+
+} // font
+} // love

src/modules/font/freetype/wrap_Font.h → src/modules/font/wrap_Font.h

@@ -18,8 +18,8 @@
  * 3. This notice may not be removed or altered from any source distribution.
  **/
 
-#ifndef LOVE_FONT_FREETYPE_WRAP_FONT_H
-#define LOVE_FONT_FREETYPE_WRAP_FONT_H
+#ifndef LOVE_FONT_WRAP_FONT_H
+#define LOVE_FONT_WRAP_FONT_H
 
 // LOVE
 #include "common/config.h"
@@ -29,15 +29,15 @@ namespace love
 {
 namespace font
 {
-namespace freetype
-{
 
 int w_newRasterizer(lua_State *L);
+int w_newTrueTypeRasterizer(lua_State *L);
+int w_newBMFontRasterizer(lua_State *L);
+int w_newImageRasterizer(lua_State *L);
 int w_newGlyphData(lua_State *L);
 extern "C" LOVE_EXPORT int luaopen_love_font(lua_State *L);
 
-} // freetype
 } // font
 } // love
 
-#endif // LOVE_FONT_FREETYPE_WRAP_FONT_H
+#endif // LOVE_FONT_WRAP_FONT_H

src/modules/graphics/opengl/wrap_Graphics.cpp

@@ -258,23 +258,24 @@ int w_newQuad(lua_State *L)
 
 int w_newFont(lua_State *L)
 {
+	Font *font = nullptr;
+
 	// Convert to Rasterizer, if necessary.
-	if (lua_isstring(L, 1) || luax_istype(L, 1, FILESYSTEM_FILE_T) || luax_istype(L, 1, FILESYSTEM_FILE_DATA_T))
+	if (!luax_istype(L, 1, FONT_RASTERIZER_T))
 	{
-		int idxs[] = {1, 2};
-		luax_convobj(L, idxs, 2, "font", "newRasterizer");
+		std::vector<int> idxs;
+		for (int i = 0; i < lua_gettop(L); i++)
+			idxs.push_back(i + 1);
+
+		luax_convobj(L, &idxs[0], (int) idxs.size(), "font", "newRasterizer");
 	}
 
 	love::font::Rasterizer *rasterizer = luax_checktype<love::font::Rasterizer>(L, 1, "Rasterizer", FONT_RASTERIZER_T);
 
-	Font *font = 0;
 	luax_catchexcept(L, [&]() {
 		font = instance()->newFont(rasterizer, instance()->getDefaultFilter()); }
 	);
 
-	if (font == 0)
-		return luaL_error(L, "Could not load font.");
-
 	// Push the type.
 	luax_pushtype(L, "Font", GRAPHICS_FONT_T, font);
 	font->release();
@@ -287,9 +288,7 @@ int w_newImageFont(lua_State *L)
 	Texture::Filter filter = instance()->getDefaultFilter();
 
 	// Convert to ImageData if necessary.
-	if (lua_isstring(L, 1) || luax_istype(L, 1, FILESYSTEM_FILE_T) || luax_istype(L, 1, FILESYSTEM_FILE_DATA_T))
-		luax_convobj(L, 1, "image", "newImageData");
-	else if (luax_istype(L, 1, GRAPHICS_IMAGE_T))
+	if (luax_istype(L, 1, GRAPHICS_IMAGE_T))
 	{
 		Image *i = luax_checktype<Image>(L, 1, "Image", GRAPHICS_IMAGE_T);
 		filter = i->getFilter();
@@ -301,11 +300,11 @@ int w_newImageFont(lua_State *L)
 	}
 
 	// Convert to Rasterizer if necessary.
-	if (luax_istype(L, 1, IMAGE_IMAGE_DATA_T))
+	if (!luax_istype(L, 1, FONT_RASTERIZER_T))
 	{
 		luaL_checkstring(L, 2);
 		int idxs[] = {1, 2};
-		luax_convobj(L, idxs, 2, "font", "newRasterizer");
+		luax_convobj(L, idxs, 2, "font", "newImageRasterizer");
 	}
 
 	love::font::Rasterizer *rasterizer = luax_checktype<love::font::Rasterizer>(L, 1, "Rasterizer", FONT_RASTERIZER_T);
@@ -313,13 +312,9 @@ int w_newImageFont(lua_State *L)
 	// Create the font.
 	Font *font = instance()->newFont(rasterizer, filter);
 
-	if (font == 0)
-		return luaL_error(L, "Could not load font.");
-
 	// Push the type.
 	luax_pushtype(L, "Font", GRAPHICS_FONT_T, font);
 	font->release();
-
 	return 1;
 }
 

src/scripts/graphics.lua

@@ -1248,12 +1248,12 @@ do
 	local type = type
 
 	local _newFont = love.graphics.newFont
-	love.graphics.newFont = function(font, size)
+	love.graphics.newFont = function(font, size, ...)
 		if type(font) == "number" or not font then
 			size = font
 			font = vera_ttf
 		end
-		return _newFont(font, size or 12)
+		return _newFont(font, size, ...)
 	end
 
 	love.graphics.setNewFont = function(...)

src/scripts/graphics.lua.h

@@ -6199,7 +6199,7 @@ const unsigned char graphics_lua[] =
 	0x6f, 0x6e, 0x74, 0x0a,
 	0x09, 0x6c, 0x6f, 0x76, 0x65, 0x2e, 0x67, 0x72, 0x61, 0x70, 0x68, 0x69, 0x63, 0x73, 0x2e, 0x6e, 0x65, 0x77, 
 	0x46, 0x6f, 0x6e, 0x74, 0x20, 0x3d, 0x20, 0x66, 0x75, 0x6e, 0x63, 0x74, 0x69, 0x6f, 0x6e, 0x28, 0x66, 0x6f, 
-	0x6e, 0x74, 0x2c, 0x20, 0x73, 0x69, 0x7a, 0x65, 0x29, 0x0a,
+	0x6e, 0x74, 0x2c, 0x20, 0x73, 0x69, 0x7a, 0x65, 0x2c, 0x20, 0x2e, 0x2e, 0x2e, 0x29, 0x0a,
 	0x09, 0x09, 0x69, 0x66, 0x20, 0x74, 0x79, 0x70, 0x65, 0x28, 0x66, 0x6f, 0x6e, 0x74, 0x29, 0x20, 0x3d, 0x3d, 
 	0x20, 0x22, 0x6e, 0x75, 0x6d, 0x62, 0x65, 0x72, 0x22, 0x20, 0x6f, 0x72, 0x20, 0x6e, 0x6f, 0x74, 0x20, 0x66, 
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@@ -6207,7 +6207,7 @@ const unsigned char graphics_lua[] =
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