38 #if DCTSIZE != 8
133   int workspace[DCTSIZE * 4];   /* buffers data between passes */
141   for (ctr = DCTSIZE; ctr > 0; inptr++, quantptr++, wsptr++, ctr--) {
143     if (ctr == DCTSIZE - 4)
145     if (inptr[DCTSIZE * 1] == 0 && inptr[DCTSIZE * 2] == 0 &&
146         inptr[DCTSIZE * 3] == 0 && inptr[DCTSIZE * 5] == 0 &&
147         inptr[DCTSIZE * 6] == 0 && inptr[DCTSIZE * 7] == 0) {
149       int dcval = LEFT_SHIFT(DEQUANTIZE(inptr[DCTSIZE * 0],
150                                         quantptr[DCTSIZE * 0]), PASS1_BITS);
152       wsptr[DCTSIZE * 0] = dcval;
153       wsptr[DCTSIZE * 1] = dcval;
154       wsptr[DCTSIZE * 2] = dcval;
155       wsptr[DCTSIZE * 3] = dcval;
162     tmp0 = DEQUANTIZE(inptr[DCTSIZE * 0], quantptr[DCTSIZE * 0]);
165     z2 = DEQUANTIZE(inptr[DCTSIZE * 2], quantptr[DCTSIZE * 2]);
166     z3 = DEQUANTIZE(inptr[DCTSIZE * 6], quantptr[DCTSIZE * 6]);
175     z1 = DEQUANTIZE(inptr[DCTSIZE * 7], quantptr[DCTSIZE * 7]);
176     z2 = DEQUANTIZE(inptr[DCTSIZE * 5], quantptr[DCTSIZE * 5]);
177     z3 = DEQUANTIZE(inptr[DCTSIZE * 3], quantptr[DCTSIZE * 3]);
178     z4 = DEQUANTIZE(inptr[DCTSIZE * 1], quantptr[DCTSIZE * 1]);
192     wsptr[DCTSIZE * 0] =
194     wsptr[DCTSIZE * 3] =
196     wsptr[DCTSIZE * 1] =
198     wsptr[DCTSIZE * 2] =
221       wsptr += DCTSIZE;         /* advance pointer to next row */
268     wsptr += DCTSIZE;           /* advance pointer to next row */
290   int workspace[DCTSIZE * 2];   /* buffers data between passes */  in jpeg_idct_2x2()
298   for (ctr = DCTSIZE; ctr > 0; inptr++, quantptr++, wsptr++, ctr--) {  in jpeg_idct_2x2()
300     if (ctr == DCTSIZE - 2 || ctr == DCTSIZE - 4 || ctr == DCTSIZE - 6)  in jpeg_idct_2x2()
302     if (inptr[DCTSIZE * 1] == 0 && inptr[DCTSIZE * 3] == 0 &&  in jpeg_idct_2x2()
303         inptr[DCTSIZE * 5] == 0 && inptr[DCTSIZE * 7] == 0) {  in jpeg_idct_2x2()
305       int dcval = LEFT_SHIFT(DEQUANTIZE(inptr[DCTSIZE * 0],  in jpeg_idct_2x2()
306                              quantptr[DCTSIZE * 0]), PASS1_BITS);  in jpeg_idct_2x2()
308       wsptr[DCTSIZE * 0] = dcval;  in jpeg_idct_2x2()
309       wsptr[DCTSIZE * 1] = dcval;  in jpeg_idct_2x2()
316     z1 = DEQUANTIZE(inptr[DCTSIZE * 0], quantptr[DCTSIZE * 0]);  in jpeg_idct_2x2()
321     z1 = DEQUANTIZE(inptr[DCTSIZE * 7], quantptr[DCTSIZE * 7]);  in jpeg_idct_2x2()
323     z1 = DEQUANTIZE(inptr[DCTSIZE * 5], quantptr[DCTSIZE * 5]);  in jpeg_idct_2x2()
325     z1 = DEQUANTIZE(inptr[DCTSIZE * 3], quantptr[DCTSIZE * 3]);  in jpeg_idct_2x2()
327     z1 = DEQUANTIZE(inptr[DCTSIZE * 1], quantptr[DCTSIZE * 1]);  in jpeg_idct_2x2()
332     wsptr[DCTSIZE * 0] =  in jpeg_idct_2x2()
334     wsptr[DCTSIZE * 1] =  in jpeg_idct_2x2()
354       wsptr += DCTSIZE;         /* advance pointer to next row */  in jpeg_idct_2x2()
379     wsptr += DCTSIZE;           /* advance pointer to next row */  in jpeg_idct_2x2()