/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

// Since FreeType2 includes files, which contain forbidden symbols, we need to
// allow all symbols here.
#define FORBIDDEN_SYMBOL_ALLOW_ALL

#include "common/scummsys.h"

#ifdef USE_FREETYPE2

#include <ft2build.h>
#include FT_FREETYPE_H
#include FT_GLYPH_H
#include FT_MODULE_H

namespace Graphics {
namespace FreeType {

void *Alloc_Callback(FT_Memory memory, long size) {
	return malloc(static_cast<size_t>(size));
}

void Free_Callback(FT_Memory memory, void *block) {
	free(block);
	block = nullptr;
}

void *Realloc_Callback(FT_Memory memory, long cur_size, long new_size, void *block) {
	return realloc(block, static_cast<size_t>(new_size));
}

FT_Error Init_FreeType_With_Mem(FT_Library *alibrary, FT_Memory *amem) {
	// It seems FT_New_Memory isn't part of the public API in 2.10.4
	FT_Memory mem = static_cast<FT_Memory>(malloc(sizeof(FT_MemoryRec_)));
	if (!mem)
		return FT_Err_Out_Of_Memory;

	mem->alloc = Alloc_Callback;
	mem->free = Free_Callback;
	mem->realloc = Realloc_Callback;
	mem->user = nullptr;

	FT_Error error = FT_New_Library(mem, alibrary);
	if (!error) {
		FT_Add_Default_Modules(*alibrary);
		*amem = mem;
	}

	return error;
}

FT_Error Init_FreeType(FT_Library *alibrary) {
	return FT_Init_FreeType(alibrary);
}

FT_Error Done_FreeType(FT_Library library) {
	return FT_Done_FreeType(library);
}

FT_Error Done_FreeType_With_Mem(FT_Library library, FT_Memory mem) {
	FT_Error error = FT_Done_Library(library);
	free(mem);
	return error;
}

FT_Error Load_Glyph(FT_Face face, FT_UInt glyph_index, FT_Int32 load_flags) {
	return FT_Load_Glyph(face, glyph_index, load_flags);
}

FT_Error Get_Glyph(FT_GlyphSlot slot, FT_Glyph *aglyph) {
	return FT_Get_Glyph(slot, aglyph);
}

FT_Error Glyph_Copy(FT_Glyph source, FT_Glyph *target) {
	return FT_Glyph_Copy(source, target);
}

FT_Error Glyph_To_Bitmap(FT_Glyph *the_glyph, FT_Render_Mode render_mode,
		FT_Vector *origin, FT_Bool destroy) {
	return FT_Glyph_To_Bitmap(the_glyph, render_mode, origin, destroy);
}

void Done_Glyph(FT_Glyph glyph) {
	return FT_Done_Glyph(glyph);
}

FT_Error Set_Pixel_Sizes(FT_Face face, FT_UInt pixel_width,
		FT_UInt pixel_height) {
	return FT_Set_Pixel_Sizes(face, pixel_width, pixel_height);
}

FT_Error New_Face(FT_Library library, const char *pathname,
		FT_Long face_index, FT_Face *aface) {
	return FT_New_Face(library, pathname, face_index, aface);
}

FT_Error New_Memory_Face(FT_Library library, const FT_Byte *file_base,
		FT_Long file_size, FT_Long face_index, FT_Face *aface) {
	return FT_New_Memory_Face(library, file_base, file_size, face_index, aface);
}

FT_Error Done_Face(FT_Face face) {
	return FT_Done_Face(face);
}

FT_UInt Get_Char_Index(FT_Face face, FT_ULong charcode) {
	return FT_Get_Char_Index(face, charcode);
}

FT_Error Get_Kerning(FT_Face face, FT_UInt left_glyph,
	FT_UInt right_glyph, FT_UInt kern_mode, FT_Vector *akerning) {
	return FT_Get_Kerning(face, left_glyph, right_glyph, kern_mode, akerning);
}

} // End of namespace FreeType
} // End of namespace Graphics

#endif