/// <summary>
/// loads the image pixels. You shouldn't call this function directly
/// </summary>
/// <param name="buffer">red,green,blue pixel values</param>
/// <returns></returns>
public static bool LoadImageData(byte[] buffer, int bufSize, CCImageTGA psInfo)
{
int mode;
int headerSkip = (1 + 2) * 6; // sizeof(char) + sizeof(short) = size of the header
// mode equal the number of components for each pixel
mode = psInfo.PixelDepth / 8;
// mode=3 or 4 implies that the image is RGB(A). However TGA
// stores it as BGR(A) so we'll have to swap R and B.
if (mode >= 3)
{
int cx = 0;
for (int i = headerSkip; i < buffer.Length; i += mode)
{
psInfo.ImageData[cx].R = buffer[i + 2];
psInfo.ImageData[cx].G = buffer[i + 1];
psInfo.ImageData[cx].B = buffer[i];
if (mode == 4)
{
psInfo.ImageData[cx].A = buffer[i + 3];
}
else
{
psInfo.ImageData[cx].A = 255;
}
}
}
else
{
return(false);
}
return(true);
}
public static CCImageTGA Load(byte[] buffer)
{
var info = new CCImageTGA();
LoadHeader(buffer, buffer.Length, info);
return(info);
}
CCTileMapAtlas(string tile, int tileWidth, int tileHeight, CCImageTGA tgaInfo, int numOfItemsToRender)
: base(tile, tileWidth, tileHeight, numOfItemsToRender)
{
TGAInfo = tgaInfo;
NumOfItemsToRender = numOfItemsToRender;
PositionToAtlasIndex = new Dictionary <CCGridSize, int>();
UpdateAtlasValues();
ContentSize = new CCSize(TGAInfo.Width * ItemWidth, TGAInfo.Height * ItemHeight);
}
CCTileMapAtlas(string tile, int tileWidth, int tileHeight, CCImageTGA tgaInfo, int numOfItemsToRender)
: base(tile, tileWidth, tileHeight, numOfItemsToRender)
{
TGAInfo = tgaInfo;
NumOfItemsToRender = numOfItemsToRender;
PositionToAtlasIndex = new Dictionary<CCGridSize, int>();
UpdateAtlasValues();
ContentSize = new CCSize(TGAInfo.Width * ItemWidth, TGAInfo.Height * ItemHeight);
}
// Just used during construction
static int CalculateItemsToRender(CCImageTGA tgaInfo)
{
Debug.Assert(tgaInfo != null, "tgaInfo must be non-nil");
int itemsToRender = 0;
var data = tgaInfo.ImageData;
for (int i = 0, count = tgaInfo.Width * tgaInfo.Height; i < count; i++)
{
if (data[i].R != 0)
{
++itemsToRender;
}
}
return itemsToRender;
}
// Just used during construction
static int CalculateItemsToRender(CCImageTGA tgaInfo)
{
Debug.Assert(tgaInfo != null, "tgaInfo must be non-nil");
int itemsToRender = 0;
var data = tgaInfo.ImageData;
for (int i = 0, count = tgaInfo.Width * tgaInfo.Height; i < count; i++)
{
if (data[i].R != 0)
{
++itemsToRender;
}
}
return(itemsToRender);
}
/// <summary>
/// loads the image pixels. You shouldn't call this function directly
/// </summary>
/// <param name="buffer">red,green,blue pixel values</param>
/// <returns></returns>
public static bool LoadImageData(byte[] buffer, int bufSize, CCImageTGA psInfo)
{
int mode;
int headerSkip = (1 + 2) * 6; // sizeof(char) + sizeof(short) = size of the header
// mode equal the number of components for each pixel
mode = psInfo.PixelDepth / 8;
// mode=3 or 4 implies that the image is RGB(A). However TGA
// stores it as BGR(A) so we'll have to swap R and B.
if (mode >= 3)
{
int cx = 0;
for (int i = headerSkip; i < buffer.Length; i += mode)
{
psInfo.ImageData[cx].R = buffer[i + 2];
psInfo.ImageData[cx].G = buffer[i + 1];
psInfo.ImageData[cx].B = buffer[i];
if (mode == 4)
{
psInfo.ImageData[cx].A = buffer[i + 3];
}
else
{
psInfo.ImageData[cx].A = 255;
}
}
}
else
{
return (false);
}
return true;
}
public void ReleaseMap()
{
TGAInfo = null;
PositionToAtlasIndex = null;
}
CCTileMapAtlas(string tile, string mapFile, int tileWidth, int tileHeight, CCImageTGA tgaInfo)
: this(tile, tileWidth, tileHeight, tgaInfo, CalculateItemsToRender(tgaInfo))
{
}
bool LoadRLEImageData(byte[] Buffer, UInt64 bufSize, CCImageTGA psInfo)
{
throw new NotImplementedException();
}
/// <summary>
/// converts RGB to greyscale
/// </summary>
/// <param name="psInfo"></param>
public static void RGBToGreyscale(CCImageTGA psInfo)
{
throw new NotImplementedException();
}
/// <summary>
/// this is the function to call when we want to load an image
/// </summary>
/// <param name="?"></param>
/// <returns></returns>
public static CCImageTGA Load(string filename)
{
//int mode, total;
CCImageTGA info = null;
//CCFileData data = new CCFileData(pszFilename, "rb");
//UInt64 nSize = data.Size;
//byte[] pBuffer = data.Buffer;
//do
//{
// if (pBuffer == null)
// {
// break;
// }
// //info = malloc(sizeof(tImageTGA)) as tImageTGA;
// // get the file header info
// if (tgaLoadHeader(pBuffer, nSize, info) == null)
// {
// info.status = (int)TGAEnum.TGA_ERROR_MEMORY;
// break;
// }
// // check if the image is color indexed
// if (info.type == 1)
// {
// info.status = (int)TGAEnum.TGA_ERROR_INDEXED_COLOR;
// break;
// }
// // check for other types (compressed images)
// if ((info.type != 2) && (info.type != 3) && (info.type != 10))
// {
// info.status = (int)TGAEnum.TGA_ERROR_COMPRESSED_FILE;
// break;
// }
// // mode equals the number of image components
// mode = info.pixelDepth / 8;
// // total is the number of unsigned chars to read
// total = info.height * info.width * mode;
// // allocate memory for image pixels
// // info.imageData = (char[])malloc(sizeof(unsigned char) * total);
// // check to make sure we have the memory required
// if (info.imageData == null)
// {
// info.status = (int)TGAEnum.TGA_ERROR_MEMORY;
// break;
// }
// bool bLoadImage = false;
// // finally load the image pixels
// if (info.type == 10)
// {
// bLoadImage = tgaLoadRLEImageData(pBuffer,nSize, info);
// }
// else
// {
// bLoadImage = tgaLoadImageData(pBuffer, nSize, info);
// }
// // check for errors when reading the pixels
// if (!bLoadImage)
// {
// info.status = TGAEnum.TGA_ERROR_READING_FILE;
// break;
// }
// info->status = TGA_OK;
// if (info->flipped)
// {
// tgaFlipImage(info);
// if (info->flipped)
// {
// info->status = TGA_ERROR_MEMORY;
// }
// }
//} while (0);
return(info);
}
public void ReleaseMap()
{
TGAInfo = null;
PositionToAtlasIndex = null;
}
public static CCImageTGA Load(byte[] buffer)
{
var info = new CCImageTGA();
LoadHeader(buffer, buffer.Length, info);
return info;
}
bool LoadRLEImageData(byte[] Buffer, UInt64 bufSize, CCImageTGA psInfo)
{
throw new NotImplementedException();
}
/// <summary>
/// converts RGB to greyscale
/// </summary>
/// <param name="psInfo"></param>
public static void RGBToGreyscale(CCImageTGA psInfo)
{
throw new NotImplementedException();
}
/// <summary>
/// load the image header fields. We only keep those that matter!
/// </summary>
/// <param name="?"></param>
/// <returns></returns>
public static bool LoadHeader(byte[] buffer, int bufSize, CCImageTGA psInfo)
{
TGAHeader header;
int pos = 0;
header.Idlength = ReadByte(buffer, pos);
pos++;
header.Colourmaptype = ReadByte(buffer, pos);
pos++;
header.Datatypecode = ReadByte(buffer, pos);
pos++;
header.Colourmaporigin = ReadShort(buffer, pos);
pos += 2;
header.Colourmaplength = ReadShort(buffer, pos);
pos += 2;
header.Colourmapdepth = ReadByte(buffer, pos);
pos++;
header.Xorigin = ReadShort(buffer, pos);
pos += 2;
header.Yorigin = ReadShort(buffer, pos);
pos += 2;
header.Width = ReadShort(buffer, pos);
pos += 2;
header.Height = ReadShort(buffer, pos);
pos += 2;
header.Bitsperpixel = ReadByte(buffer, pos);
pos++;
header.Imagedescriptor = ReadByte(buffer, pos);
pos++;
/*
*
* bool bRet = false;
*
* do
* {
* int step = sizeof (byte) * 2;
* if ((step + sizeof (byte)) > bufSize)
* {
* break;
* }
*
* psInfo.type = ReadByte(buffer, step);
*
* step += sizeof (byte) * 2;
* step += sizeof (short) * 4;
* if ((step + sizeof (short) * 2 + sizeof (char)) > bufSize)
* {
* break;
* }
*
* psInfo.width = ReadShort(buffer, step);
* psInfo.height = ReadShort(buffer, step + sizeof (short));
* psInfo.pixelDepth = ReadByte(buffer, step + sizeof (short) * 2);
*
* step += sizeof (char);
* step += sizeof (short) * 2;
* if ((step + sizeof (byte)) > bufSize)
* {
* break;
* }
*
* byte cGarbage = ReadByte(buffer, step);
*
* psInfo.flipped = 0;
* if ((cGarbage & 0x20) != 0)
* {
* psInfo.flipped = 1;
* }
* bRet = true;
* } while (true);
*/
return(true);
}
/// <summary>
/// load the image header fields. We only keep those that matter!
/// </summary>
/// <param name="?"></param>
/// <returns></returns>
public static bool LoadHeader(byte[] buffer, int bufSize, CCImageTGA psInfo)
{
TGAHeader header;
int pos = 0;
header.Idlength = ReadByte(buffer, pos);
pos++;
header.Colourmaptype = ReadByte(buffer, pos);
pos++;
header.Datatypecode = ReadByte(buffer, pos);
pos++;
header.Colourmaporigin = ReadShort(buffer, pos);
pos += 2;
header.Colourmaplength = ReadShort(buffer, pos);
pos += 2;
header.Colourmapdepth = ReadByte(buffer, pos);
pos++;
header.Xorigin = ReadShort(buffer, pos);
pos += 2;
header.Yorigin = ReadShort(buffer, pos);
pos += 2;
header.Width = ReadShort(buffer, pos);
pos += 2;
header.Height = ReadShort(buffer, pos);
pos += 2;
header.Bitsperpixel = ReadByte(buffer, pos);
pos++;
header.Imagedescriptor = ReadByte(buffer, pos);
pos++;
/*
bool bRet = false;
do
{
int step = sizeof (byte) * 2;
if ((step + sizeof (byte)) > bufSize)
{
break;
}
psInfo.type = ReadByte(buffer, step);
step += sizeof (byte) * 2;
step += sizeof (short) * 4;
if ((step + sizeof (short) * 2 + sizeof (char)) > bufSize)
{
break;
}
psInfo.width = ReadShort(buffer, step);
psInfo.height = ReadShort(buffer, step + sizeof (short));
psInfo.pixelDepth = ReadByte(buffer, step + sizeof (short) * 2);
step += sizeof (char);
step += sizeof (short) * 2;
if ((step + sizeof (byte)) > bufSize)
{
break;
}
byte cGarbage = ReadByte(buffer, step);
psInfo.flipped = 0;
if ((cGarbage & 0x20) != 0)
{
psInfo.flipped = 1;
}
bRet = true;
} while (true);
*/
return true;
}
CCTileMapAtlas(string tile, string mapFile, int tileWidth, int tileHeight, CCImageTGA tgaInfo)
: this(tile, tileWidth, tileHeight, tgaInfo, CalculateItemsToRender(tgaInfo))
{
}
