247 lines
8.0 KiB
C++
247 lines
8.0 KiB
C++
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#include "Asset_ImagePack.h"
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Asset_ImagePack::Asset_ImagePack()
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{
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}
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Asset_ImagePack::~Asset_ImagePack()
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{
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}
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void Asset_ImagePack::Init()
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{
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DIR *dir;
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struct dirent *ent;
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std::string path = "ImagePacks2/";
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dir = opendir(path.c_str());
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while ((ent = readdir(dir)))
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{
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// 跳过.和..目录
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if (strcmp(ent->d_name, ".") == 0 || strcmp(ent->d_name, "..") == 0)
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continue;
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std::string RealPath = path + ent->d_name;
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Ifstream_NPK Fs;
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Fs.open(RealPath.c_str(), std::ios::in | std::ios::binary);
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if (Fs.is_open())
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{
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std::string Header = Fs.ReadString();
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// 如果是NPK
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if (Header.find("NeoplePack_Bill") != std::string::npos)
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{
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// 读取img数量
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int ImageCount = Fs.ReadInt();
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// 读取头
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NpkInfo *ImgList = new NpkInfo[ImageCount];
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for (int i = 0; i < ImageCount; i++)
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{
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ImgList[i].Offset = Fs.ReadInt();
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ImgList[i].Length = Fs.ReadInt();
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ImgList[i].Path = Fs.ReadInfo();
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}
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for (int i = 0; i < ImageCount; i++)
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{
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IMG img;
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img.imgOffset = ImgList[i].Offset;
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img.imgSize = ImgList[i].Length;
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img.img_index = i;
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img.lpBelongsFile = ent->d_name;
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img.lpImgName = ImgList[i].Path;
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img.lp_lplist = NULL;
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img.png_sum = 0;
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map_npk.insert(make_pair(img.lpImgName, img));
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}
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// 销毁
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delete[] ImgList;
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}
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}
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Fs.close();
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}
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closedir(dir);
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}
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void Asset_ImagePack::ParseColor(BYTE *Tab, int Type, BYTE *SaveByte, int Offset)
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{
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BYTE a = 0;
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BYTE r = 0;
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BYTE g = 0;
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BYTE b = 0;
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switch (Type)
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{
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case 0x0e:
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a = (BYTE)(Tab[1] >> 7);
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r = (BYTE)((Tab[1] >> 2) & 0x1f);
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g = (BYTE)((Tab[0] >> 5) | ((Tab[1] & 3) << 3));
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b = (BYTE)(Tab[0] & 0x1f);
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a = (BYTE)(a * 0xff);
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r = (BYTE)((r << 3) | (r >> 2));
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g = (BYTE)((g << 3) | (g >> 2));
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b = (BYTE)((b << 3) | (b >> 2));
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break;
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case 0x0f:
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a = (BYTE)(Tab[1] & 0xf0);
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r = (BYTE)((Tab[1] & 0xf) << 4);
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g = (BYTE)(Tab[0] & 0xf0);
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b = (BYTE)((Tab[0] & 0xf) << 4);
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break;
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}
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SaveByte[Offset + 0] = b;
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SaveByte[Offset + 1] = g;
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SaveByte[Offset + 2] = r;
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SaveByte[Offset + 3] = a;
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}
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void Asset_ImagePack::LoadImgToMem(IMG *p)
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{
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std::string Path = "ImagePacks2/" + p->lpBelongsFile;
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// SDL_Log("LoadImgToMem : %s", Path.c_str());
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Ifstream_NPK Fs;
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Fs.open(Path.c_str(), std::ios::in | std::ios::binary);
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if (Fs.is_open())
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{
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Fs.seekg(p->imgOffset);
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std::string Flag = Fs.ReadString(); // 读取Flag
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if (Flag.find("Neople Img File") != std::string::npos)
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{
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// 索引表大小
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long TableLength = Fs.ReadLong();
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// img 版本 4字节
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Fs.ReadInt(); // 读取版本
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// img 帧数
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int IndexCount = Fs.ReadInt();
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// 图片数量赋值
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p->png_sum = IndexCount;
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// new出 Png数量的 结构体
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ImgInfo *PngList = new ImgInfo[IndexCount];
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for (int i = 0; i < IndexCount; i++)
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{
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PngList[i].Type = Fs.ReadInt();
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if (PngList[i].Type == 17)
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{
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// 引用贴图
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int frbuf = Fs.ReadInt();
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// 压缩类型 用来临时存一下引用编号
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PngList[i].CmpType = frbuf;
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////大小
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PngList[i].Size = 0;
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PngList[i].Offset = PngList[i - 1].Offset + PngList[i - 1].Size;
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continue;
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}
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// 压缩类型
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PngList[i].CmpType = Fs.ReadInt();
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// 宽度
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PngList[i].Width = Fs.ReadInt();
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// 高度
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PngList[i].Height = Fs.ReadInt();
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// 大小
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PngList[i].Size = Fs.ReadInt();
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// Xpos
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PngList[i].Xpos = Fs.ReadInt();
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// Ypos
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PngList[i].Ypos = Fs.ReadInt();
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// 帧域X
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PngList[i].FrameXpos = Fs.ReadInt();
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// 帧域Y
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PngList[i].FrameYpos = Fs.ReadInt();
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// 计算偏移
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if (i == 0)
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PngList[i].Offset = 0 + p->imgOffset + TableLength + 32;
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else
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PngList[i].Offset = PngList[i - 1].Offset + PngList[i - 1].Size;
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}
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for (int i = 0; i < IndexCount; i++)
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{
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// 引用
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if (PngList[i].Type == 17)
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{
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// 引用编号
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int YYIndex = PngList[i].CmpType;
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int sizebuf = PngList[YYIndex].Width * PngList[YYIndex].Height * 4;
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BYTE *bByte = new BYTE[sizebuf];
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memcpy(bByte, PngList[PngList[i].CmpType].PNGdata, sizebuf);
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PngList[i].PNGdata = PngList[YYIndex].PNGdata;
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// 压缩类型 用来临时存一下引用编号
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PngList[i].CmpType = PngList[YYIndex].CmpType;
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// 宽度
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PngList[i].Width = PngList[YYIndex].Width;
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// 高度
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PngList[i].Height = PngList[YYIndex].Height;
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// 大小
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PngList[i].Size = 0;
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// Xpos
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PngList[i].Xpos = PngList[YYIndex].Xpos;
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// Ypos
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PngList[i].Ypos = PngList[YYIndex].Ypos;
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// 帧域X
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PngList[i].FrameXpos = PngList[YYIndex].FrameXpos;
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// 帧域Y
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PngList[i].FrameYpos = PngList[YYIndex].FrameYpos;
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continue;
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}
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Fs.seekg(PngList[i].Offset);
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BYTE *PngData = Fs.ReadCustomSize(PngList[i].Size);
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int DeSize = PngList[i].Width * PngList[i].Height * 4;
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BYTE *bByte = new BYTE[DeSize];
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unsigned long RealSize = DeSize;
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uncompress(bByte, &RealSize, PngData, (unsigned long)PngList[i].Size);
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delete[] PngData;
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if (PngList[i].Type != 16)
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{
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int PngByteSize = DeSize * 2;
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PngList[i].PNGdata = new BYTE[PngByteSize];
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for (int e = 0; e < PngByteSize; e += 4)
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{
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BYTE NeedData[2];
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memset(NeedData, 0, 2);
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memcpy(NeedData, bByte + (e / 4) * 2, 2);
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ParseColor(NeedData, PngList[i].Type, PngList[i].PNGdata, e);
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}
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delete[] bByte;
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}
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else
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{
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PngList[i].PNGdata = bByte;
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}
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}
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p->lp_lplist = PngList;
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}
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else if (Flag.find("Neople Image File") != std::string::npos)
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{
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// LoadImgToMem2(p);
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}
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Fs.close();
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}
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}
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Asset_ImagePack::IMG *Asset_ImagePack::GetIMG(std::string imgName)
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{
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IMG *img = NULL;
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std::map<std::string, IMG>::iterator itr;
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itr = map_npk.find(imgName);
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if (itr == map_npk.end())
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{
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std::string mes = "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!调用了不存在的Img : " + imgName;
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SDL_Log(mes.c_str());
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img = &map_npk["sprite/interface/base.img"];
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}
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else
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{
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img = &itr->second;
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}
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// 如果图片数组不存在 或者 图片数据不存在都要重读
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if (!img->lp_lplist)
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{
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LoadImgToMem(img);
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}
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img->UseTime = SDL_GetTicks();
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return img;
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}
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