dolphin/Source/Core/DiscIO/Src/BannerLoaderWii.cpp

225 lines
4.2 KiB
C++

// Copyright (C) 2003-2008 Dolphin Project.
// 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, version 2.0.
// 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 2.0 for more details.
// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/
// Official SVN repository and contact information can be found at
// http://code.google.com/p/dolphin-emu/
#include "stdafx.h"
#include <stdio.h>
#include "Common.h"
#include "BannerLoaderWii.h"
#include "FileUtil.h"
namespace DiscIO
{
CBannerLoaderWii::CBannerLoaderWii(DiscIO::IFileSystem& _rFileSystem)
: m_pBannerFile(NULL)
, m_IsValid(false)
{
InitLUTTable();
char Filename[260];
char TitleID[4];
_rFileSystem.GetVolume()->Read(0, 4, (u8*)TitleID);
sprintf(Filename, FULL_WII_USER_DIR "title/00010000/%02x%02x%02x%02x/data/banner.bin", (u8)TitleID[0], (u8)TitleID[1], (u8)TitleID[2], (u8)TitleID[3]);
// load the opening.bnr
size_t FileSize = File::GetSize(Filename);
if (FileSize > 0)
{
m_pBannerFile = new u8[FileSize];
FILE* pFile = fopen(Filename, "rb");
if (pFile != NULL)
{
fread(m_pBannerFile, FileSize, 1, pFile);
fclose(pFile);
m_IsValid = true;
}
}
}
CBannerLoaderWii::~CBannerLoaderWii()
{
if (m_pBannerFile)
{
delete [] m_pBannerFile;
m_pBannerFile = NULL;
}
}
bool
CBannerLoaderWii::IsValid()
{
return (m_IsValid);
}
bool
CBannerLoaderWii::GetBanner(u32* _pBannerImage)
{
if (!IsValid())
{
return false;
}
SWiiBanner* pBanner = (SWiiBanner*)m_pBannerFile;
static u32 Buffer[192 * 64];
decode5A3image(Buffer, (u16*)pBanner->m_BannerTexture, 192, 64);
// ugly scaling :)
for (int y=0; y<32; y++)
{
for (int x=0; x<96; x++)
{
_pBannerImage[y*96+x] = Buffer[(y*192*2)+(x*2)];
}
}
return true;
}
std::string
CBannerLoaderWii::StupidWideCharToString(u16* _pSrc, size_t _max)
{
std::string temp;
u32 offset = 0;
while (_pSrc[offset] != 0x0000)
{
temp += (char)(_pSrc[offset] >> 8);
offset ++;
if (offset >= _max)
break;
}
return temp;
}
bool
CBannerLoaderWii::GetName(std::string& _rName, int language)
{
if (IsValid())
{
SWiiBanner* pBanner = (SWiiBanner*)m_pBannerFile;
// very stupid
_rName = StupidWideCharToString(pBanner->m_Comment[0], WII_BANNER_COMMENT_SIZE);
return true;
}
return true;
}
bool
CBannerLoaderWii::GetCompany(std::string& _rCompany)
{
_rCompany = "N/A";
return true;
}
bool
CBannerLoaderWii::GetDescription(std::string& _rDescription)
{
if (IsValid())
{
SWiiBanner* pBanner = (SWiiBanner*)m_pBannerFile;
// very stupid
_rDescription = StupidWideCharToString(pBanner->m_Comment[1], WII_BANNER_COMMENT_SIZE);
return true;
}
return false;
}
void
CBannerLoaderWii::InitLUTTable()
{
// build LUT Table
for (int i = 0; i < 8; i++)
{
lut3to8[i] = (i * 255) / 7;
}
for (int i = 0; i < 16; i++)
{
lut4to8[i] = (i * 255) / 15;
}
for (int i = 0; i < 32; i++)
{
lut5to8[i] = (i * 255) / 31;
}
}
u32
CBannerLoaderWii::decode5A3(u16 val)
{
u32 bannerBGColor = 0x00000000;
int r, g, b, a;
if ((val & 0x8000))
{
r = lut5to8[(val >> 10) & 0x1f];
g = lut5to8[(val >> 5) & 0x1f];
b = lut5to8[(val) & 0x1f];
a = 0xFF;
}
else
{
a = lut3to8[(val >> 12) & 0x7];
r = (lut4to8[(val >> 8) & 0xf] * a + (bannerBGColor & 0xFF) * (255 - a)) / 255;
g = (lut4to8[(val >> 4) & 0xf] * a + ((bannerBGColor >> 8) & 0xFF) * (255 - a)) / 255;
b = (lut4to8[(val) & 0xf] * a + ((bannerBGColor >> 16) & 0xFF) * (255 - a)) / 255;
a = 0xFF;
}
return ((a << 24) | (r << 16) | (g << 8) | b);
}
void
CBannerLoaderWii::decode5A3image(u32* dst, u16* src, int width, int height)
{
for (int y = 0; y < height; y += 4)
{
for (int x = 0; x < width; x += 4)
{
for (int iy = 0; iy < 4; iy++, src += 4)
{
for (int ix = 0; ix < 4; ix++)
{
u32 RGBA = decode5A3(Common::swap16(src[ix]));
dst[(y + iy) * width + (x + ix)] = RGBA;
}
}
}
}
}
} // namespace