+void Image_WriteTGARGB (char *filename, int width, int height, byte *data)
+{
+ int y;
+ byte *buffer, *in, *out, *end;
+
+ buffer = Mem_Alloc(tempmempool, width*height*3 + 18);
+
+ memset (buffer, 0, 18);
+ buffer[2] = 2; // uncompressed type
+ buffer[12] = (width >> 0) & 0xFF;
+ buffer[13] = (width >> 8) & 0xFF;
+ buffer[14] = (height >> 0) & 0xFF;
+ buffer[15] = (height >> 8) & 0xFF;
+ buffer[16] = 24; // pixel size
+
+ // swap rgb to bgr and flip upside down
+ out = buffer + 18;
+ for (y = height - 1;y >= 0;y--)
+ {
+ in = data + y * width * 3;
+ end = in + width * 3;
+ for (;in < end;in += 3)
+ {
+ *out++ = in[2];
+ *out++ = in[1];
+ *out++ = in[0];
+ }
+ }
+ COM_WriteFile (filename, buffer, width*height*3 + 18 );
+
+ Mem_Free(buffer);
+}
+
+void Image_WriteTGARGBA (char *filename, int width, int height, byte *data)
+{
+ int y;
+ byte *buffer, *in, *out, *end;
+
+ buffer = Mem_Alloc(tempmempool, width*height*4 + 18);
+
+ memset (buffer, 0, 18);
+ buffer[2] = 2; // uncompressed type
+ buffer[12] = (width >> 0) & 0xFF;
+ buffer[13] = (width >> 8) & 0xFF;
+ buffer[14] = (height >> 0) & 0xFF;
+ buffer[15] = (height >> 8) & 0xFF;
+ buffer[16] = 32; // pixel size
+
+ // swap rgba to bgra and flip upside down
+ out = buffer + 18;
+ for (y = height - 1;y >= 0;y--)
+ {
+ in = data + y * width * 4;
+ end = in + width * 4;
+ for (;in < end;in += 4)
+ {
+ *out++ = in[2];
+ *out++ = in[1];
+ *out++ = in[0];
+ *out++ = in[3];
+ }
+ }
+ COM_WriteFile (filename, buffer, width*height*4 + 18 );
+
+ Mem_Free(buffer);
+}
+
+qboolean Image_CheckAlpha(byte *data, int size, qboolean rgba)
+{
+ byte *end;
+ if (rgba)
+ {
+ // check alpha bytes
+ for (end = data + size * 4, data += 3;data < end;data += 4)
+ if (*data < 255)
+ return 1;
+ }
+ else
+ {
+ // color 255 is transparent
+ for (end = data + size;data < end;data++)
+ if (*data == 255)
+ return 1;
+ }
+ return 0;