/// <summary>
/// 删除加载缓存图片
/// </summary>
/// <param name="info"></param>
private void listRemoveImg(Image_info info)
{
iList.Remove(info);
if (iList.Count >= 1)
{
StartCoroutine(LoadLocalImage(iList[0]));
}
else if (iList.Count <= 0)
{
startLoadImg = false;
}
}
IEnumerator DownloadImage(Image_info info)
{
string filePath = getImgUrl(info);
string url = idToUrl(info.key) + "@" + getSizeString(info.state);
bool isOk = false;
int times = 0;
while (!isOk)
{
WWW www = new WWW(url);
yield return(www);
if (www.error == null)
{
info.tex.LoadImage(www.bytes);
info.isError = "OK";
info.site = "网络";
info.fun(info.tex);
listRemoveImg(info);
isOk = true;
try
{
File.WriteAllBytes(filePath, info.tex.EncodeToJPG());
}
catch (System.Exception e)
{
string s = e.ToString();
}
}
else
{
Debug.LogError("ImageManager2 网络请求图片出错：" + url + www.error.ToString());
info.isError = "Error";
if (times == 0)
{
listRemoveImg(info);
}
times++;
if (times >= 10)
{
isOk = true;
info.fun(null);
}
}
if (!isOk)
{
yield return(new WaitForSeconds(3f));
}
}
}
/// <summary>
/// 添加一个元素到缓存中
/// </summary>
/// <param name="info">加载元素</param>
/// <param name="isFistLoad">是否优先加载</param>
private void listAddImg(Image_info info, bool isFistLoad)
{
if (iList.Contains(info))
{
iList.Remove(info);
}
if (isFistLoad)
{
iList.Insert(0, info);
}
else
{
iList.Add(info);
}
}
/**
* 构建信息对象，返回包含每个数据信息的结构
*/
private List <Image_info> Build_info_object(string descrition)
{
List <Image_info> ret = new List <Image_info>();
// 切割数据单元格
string pattern = @"(\s*?DicingTextureData data\s*(?:.|\r|\n)*?int transparentIndex = -?\d+?)";
// 目录名
Match dir_name_match = Regex.Match(descrition, "string m_Name = \"(\\w*)\"");
string dir_name = dir_name_match.Groups[1].ToString();
foreach (Match match in Regex.Matches(descrition, pattern))
{
// 构建数据
Image_info info = new Image_info();
Match name_match = Regex.Match(match.Value, "string name = \"(\\w*)\"");
info.name = name_match.Groups[1].ToString();
Match atlasName_match = Regex.Match(match.Value, "string atlasName = \"(\\w*)\"");
info.atlas_name = atlasName_match.Groups[1].ToString();
Match width_match = Regex.Match(match.Value, "int width = (\\d+)");
info.w = Convert.ToInt32(width_match.Groups[1].ToString());
Match height_match = Regex.Match(match.Value, "int height = (\\d+)");
info.h = Convert.ToInt32(height_match.Groups[1].ToString());
info.dir_name = dir_name;
info.cell_indexs = new List <int>();
foreach (Match cell_index in Regex.Matches(match.Groups[1].ToString(), "data = (\\d+)"))
{
info.cell_indexs.Add(Convert.ToInt32(cell_index.Groups[1].ToString()));
}
ret.Add(info);
}
return(ret);
}
/// <summary>
/// 删除图片（非强制删除）
/// </summary>
/// <param name="id"></param>
/// <param name="size"></param>
public void deleteImage(string id, TextureSize_state size)
{
//Debug.Log ("deleteImage "+id);
if (!imgList.ContainsKey(id))
{
Debug.LogError(imgList.Count + "====deleteImage ERROR" + id);
return;
}
Image_info info = imgList[id];
if (info == null)
{
Debug.LogError("deleteImage ERROR");
return;
}
//如果缓存中有图片，则删除该图片不继续加载
if (iList.Contains(info))
{
iList.Remove(info);
}
info.stateIndex[(int)size]--;
if (info.stateIndex[(int)size] < 0)
{
Debug.LogError("deleteImage ERROR 引用计数溢出");
}
//如果所有计数均为0，则删除该图片
int max = 0;
for (int i = 0; i < info.stateIndex.Length; i++)
{
max += info.stateIndex[i];
}
if (max <= 0)
{
imgList.Remove(id);
Resources.UnloadUnusedAssets();
}
}
IEnumerator LoadLocalImage(Image_info info)
{
string filePath = getWWWImgUrl(info);
WWW www = new WWW(filePath);
yield return(www);
if (www.error == null)
{
info.tex.LoadImage(www.bytes);
listRemoveImg(info);
info.isError = "OK";
info.site = "本地";
info.fun(info.tex);
}
else
{
//TODO 加载网络数据
StartCoroutine(DownloadImage(info));
}
}
public void loadImage(string id, TextureSize_state size, Callback <Texture2D> fun, bool isFistLoad = false)
{
if (imgList.ContainsKey(id))
{
Image_info info = imgList[id];
info.isError = "null";
info.site = "null";
info.fun = fun;
//如果有小图，则删除小图，加载大图
if ((int)imgList[id].state > (int)size)
{
info.state = size;
info.stateIndex[(int)size]++;
listAddImg(info, isFistLoad);
listLoadImg();
}
//否则记数加1，然后返回图片
else
{
info.stateIndex[(int)size]++;
fun(imgList[id].tex);
}
}
else
{
//请求本地是否有该图片
Image_info info = new Image_info();
info.isError = "null";
info.site = "null";
info.tex = new Texture2D(0, 0);
info.key = id;
info.state = size;
info.stateIndex[(int)size] = 1;
info.fun = fun;
imgList.Add(id, info);
listAddImg(info, isFistLoad);
listLoadImg();
}
}
private void loadLocalImage(Image_info info)
{
string filePath = Application.persistentDataPath + "/Resources/" + info.key;
if (System.IO.File.Exists(filePath))
{
try
{
Texture2D test = (Texture2D)Resources.Load(info.key, typeof(Texture2D));
info.tex = test;
info.fun(info.tex);
}
catch (System.Exception e)
{
Debug.Log("loadLocalImage 读取本地文件出错：" + e.ToString());
}
}
else
{
StartCoroutine(DownloadImage(info));
}
}
private static string getImgUrl(Image_info info)
{
switch (info.state)
{
case TextureSize_state.Texture_raw:
return(FileConfig.img_file_raw + info.key + ".sky");
case TextureSize_state.Texture_big:
return(FileConfig.img_file_big + info.key + ".sky");
case TextureSize_state.Texture_centre:
return(FileConfig.img_file_centre + info.key + ".sky");
case TextureSize_state.Texture_little:
return(FileConfig.img_file_little + info.key + ".sky");
case TextureSize_state.Texture_tiny:
return(FileConfig.img_file_tiny + info.key + ".sky");
default:
return(null);
}
}
/**
* 转换图像
*/
private void Convert_Image(Image_info info, Dictionary <string, Bitmap> atlas_Bitmaps)
{
var path = Path.Combine(source_path, info.atlas_name + ".png");
if (!atlas_Bitmaps.ContainsKey(path))
{
System.Console.WriteLine("载入地图集：{0}", info.atlas_name);
// 垂直翻转画布，因为是UV坐标
Bitmap atlas_bitmap = Image.FromFile(path) as Bitmap;
atlas_bitmap.RotateFlip(RotateFlipType.RotateNoneFlipY);
atlas_Bitmaps.Add(path, atlas_bitmap);
}
Bitmap atlas_image = atlas_Bitmaps[path];
int[] index = info.cell_indexs.ToArray();
Bitmap dst_bitmap = new Bitmap(info.w, info.h, PixelFormat.Format24bppRgb);
Graphics g;
//要绘制到的位图
g = Graphics.FromImage(dst_bitmap);
int cellWidth = info.w;
int cellHeight = info.h;
int cellSize = 64;
int padding = 3;
int paddingCellSize = cellSize - padding * 2;
int cellCountX = (int)Math.Ceiling(1.0f * cellWidth / paddingCellSize);
int cellCountY = (int)Math.Ceiling(1.0f * cellHeight / paddingCellSize);
int atlasWidth = atlas_image.Width;
int atlasHeight = atlas_image.Height;
int atlasCellCountX = (int)Math.Ceiling(1.0f * atlasWidth / cellSize);
int i = 0;
for (int cellY = 0; cellY < cellCountY; ++cellY)
{
int y0 = cellY * paddingCellSize;
for (int cellX = 0; cellX < cellCountX; ++cellX)
{
int x0 = cellX * paddingCellSize;
int cellIndex = index[i];
int ux = (cellIndex % atlasCellCountX) * cellSize;
int uy = (cellIndex / atlasCellCountX) * cellSize;
//复制图像
g.DrawImage(atlas_image, new Rectangle(x0, y0, cellSize, cellSize), new Rectangle(ux, uy, cellSize, cellSize), GraphicsUnit.Pixel);
i++;
}
}
dst_bitmap.RotateFlip(RotateFlipType.RotateNoneFlipY);
string save_file_path = Path.Combine(target_path, info.dir_name, info.name + ".png");
dst_bitmap.Save(save_file_path, ImageFormat.Png);
System.Console.WriteLine("写入文件：{0}", save_file_path);
}
private static string getWWWImgUrl(Image_info info)
{
return("file:///" + getImgUrl(info));
}