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tga.h File Reference

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Compounds

struct  tgaInfo

Enumerations

enum  {
  TGA_ERROR_FILE_OPEN, TGA_ERROR_READING_FILE, TGA_ERROR_INDEXED_COLOR, TGA_ERROR_MEMORY,
  TGA_ERROR_COMPRESSED_FILE, TGA_OK
}

Functions

int tgaSave (char *filename, short int width, short int height, unsigned char pixelDepth, unsigned char *imageData)
int tgaSaveSeries (char *filename, short int width, short int height, unsigned char pixelDepth, unsigned char *imageData)

Enumeration Type Documentation

anonymous enum
 

Enumeration values:
TGA_ERROR_FILE_OPEN 
TGA_ERROR_READING_FILE 
TGA_ERROR_INDEXED_COLOR 
TGA_ERROR_MEMORY 
TGA_ERROR_COMPRESSED_FILE 
TGA_OK 

Definition at line 6 of file tga.h. 

00007 {                            
00008 TGA_ERROR_FILE_OPEN, 
00009 TGA_ERROR_READING_FILE, 
00010 TGA_ERROR_INDEXED_COLOR,
00011 TGA_ERROR_MEMORY, 
00012 TGA_ERROR_COMPRESSED_FILE,
00013 TGA_OK 
00014 };

Function Documentation

int tgaSave (  char *    filename,
short int    width,
short int    height,
unsigned char    pixelDepth,
unsigned char *    imageData
) 
 

Definition at line 205 of file tga.cpp.

Referenced by CreateLightmaps(), and tgaSaveSeries(). 

00209                                                                       {
00210 
00211                                   unsigned char cGarbage = 0, type,mode,aux;
00212                                   short int iGarbage = 0;
00213                                   int i;
00214                                   FILE *file;
00215 
00216                           // open file and check for errors
00217                                   file = fopen(filename, "wb");
00218                                   if (file == NULL) {
00219                                           return(TGA_ERROR_FILE_OPEN);
00220                                   }
00221 
00222                           // compute image type: 2 for RGB(A), 3 for greyscale
00223                                   mode = (unsigned char)(pixelDepth / 8);
00224                                   if ((pixelDepth == 24) || (pixelDepth == 32))
00225                                           type = 2;
00226                                   else
00227                                           type = 3;
00228 
00229                           // write the header
00230                                   fwrite(&cGarbage, sizeof(unsigned char), 1, file);
00231                                   fwrite(&cGarbage, sizeof(unsigned char), 1, file);
00232 
00233                                   fwrite(&type, sizeof(unsigned char), 1, file);
00234 
00235                                   fwrite(&iGarbage, sizeof(short int), 1, file);
00236                                   fwrite(&iGarbage, sizeof(short int), 1, file);
00237                                   fwrite(&cGarbage, sizeof(unsigned char), 1, file);
00238                                   fwrite(&iGarbage, sizeof(short int), 1, file);
00239                                   fwrite(&iGarbage, sizeof(short int), 1, file);
00240 
00241                                   fwrite(&width, sizeof(short int), 1, file);
00242                                   fwrite(&height, sizeof(short int), 1, file);
00243                                   fwrite(&pixelDepth, sizeof(unsigned char), 1, file);
00244 
00245                                   fwrite(&cGarbage, sizeof(unsigned char), 1, file);
00246 
00247                           // convert the image data from RGB(a) to BGR(A)
00248                                   if (mode >= 3)
00249                                   for (i=0; i < width * height * mode ; i+= mode) {
00250                                           aux = imageData[i];
00251                                           imageData[i] = imageData[i+2];
00252                                           imageData[i+2] = aux;
00253                                   }
00254 
00255                           // save the image data
00256                                   fwrite(imageData, sizeof(unsigned char),
00257                                                   width * height * mode, file);
00258                                   fclose(file);
00259                           // release the memory
00260                                  // free(imageData);
00261 
00262                                   return(TGA_OK);
00263                           }

int tgaSaveSeries (  char *    filename,
short int    width,
short int    height,
unsigned char    pixelDepth,
unsigned char *    imageData
) 
 

Definition at line 266 of file tga.cpp.

References savedImages, and tgaSave().

Referenced by tgaGrabScreenSeries(). 

00270                                                                               {
00271 
00272                                   char *newFilename;
00273                                   int status;
00274 
00275                           // compute the new filename by adding the 
00276                           // series number and the extension
00277                                   newFilename = (char *)malloc(sizeof(char) * strlen(filename)+8);
00278 
00279                                   sprintf(newFilename,"%s%d.tga",filename,savedImages);
00280                                   
00281                           // save the image
00282                                   status = tgaSave(newFilename,width,height,pixelDepth,imageData);
00283                                   
00284                           //increase the counter
00285                                   savedImages++;
00286                                   return(status);
00287                           }

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