int targa_loadFromFile(Targa *targa, char *filename)
{
int rc = 0;
int fileLength = 0;
unsigned char *buffer = NULL;
FILE *fh = NULL;
if((targa == NULL) || (filename == NULL)) {
fprintf(stderr, "[%s():%i] error - invalid or missing argument(s).\n",
__FUNCTION__, __LINE__);
return -1;
}
if((fh = fopen(filename, "r+b")) == NULL) {
return targaErrorf();
}
if((rc = fseek(fh, 0, SEEK_END)) != 0) {
return targaErrorf();
}
if((fileLength = ftell(fh)) < 0) {
return targaErrorf();
}
if((rc = fseek(fh, 0, SEEK_SET)) != 0) {
return targaErrorf();
}
if(fileLength < 18) {
fprintf(stderr, "error - TGA file '%s' length %i invalid.\n",
filename, fileLength);
fclose(fh);
return -1;
}
buffer = (unsigned char *)malloc(sizeof(unsigned char) * fileLength);
memset(buffer, 0, (sizeof(unsigned char) * fileLength));
rc = (int)fread((char *)buffer, sizeof(char), fileLength, fh);
if(rc != fileLength) {
return targaErrorf();
}
fclose(fh);
rc = targa_loadFromData(targa, buffer, fileLength);
free(buffer);
return rc;
}
bool ImageLoaderTGA::ReadData() {
Targa tga;
if (targa_loadFromData(&tga, m_RawData, m_NumRawDataBytes) < 0) {
return false;
}
m_Width = tga.width;
m_Height = tga.height;
assert(static_cast<uint32>(tga.imageLength) == m_Width * m_Height * 4);
return LoadFromPixelBuffer(reinterpret_cast<uint32 *>(tga.image), true);
}
