third_party/libjpeg/fpdfapi_jidctred.c - Issue 1433803002: Get rid of _FX_JPEG_TURBO_

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Side by Side Diff: third_party/libjpeg/fpdfapi_jidctred.c

Issue 1433803002: Get rid of _FX_JPEG_TURBO_ (Closed) Base URL: https://pdfium.googlesource.com/pdfium@master

Patch Set: Created 5 years, 1 month ago

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1 #if !defined(_FX_JPEG_TURBO_)

2 /*	1 /*

3 * jidctred.c	2 * jidctred.c

4 *	3 *

5 * Copyright (C) 1994-1998, Thomas G. Lane.	4 * Copyright (C) 1994-1998, Thomas G. Lane.

6 * This file is part of the Independent JPEG Group's software.	5 * This file is part of the Independent JPEG Group's software.

7 * For conditions of distribution and use, see the accompanying README file.	6 * For conditions of distribution and use, see the accompanying README file.

8 *	7 *

9 * This file contains inverse-DCT routines that produce reduced-size output:	8 * This file contains inverse-DCT routines that produce reduced-size output:

10 * either 4x4, 2x2, or 1x1 pixels from an 8x8 DCT block.	9 * either 4x4, 2x2, or 1x1 pixels from an 8x8 DCT block.

11 *	10 *

(...skipping 378 matching lines...) Expand 10 before \| Expand all \| Expand 10 after Loading...
390 * average pixel value, which is one-eighth of the DC coefficient.	389 * average pixel value, which is one-eighth of the DC coefficient.

391 */	390 */

392 quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table;	391 quantptr = (ISLOW_MULT_TYPE *) compptr->dct_table;

393 dcval = DEQUANTIZE(coef_block[0], quantptr[0]);	392 dcval = DEQUANTIZE(coef_block[0], quantptr[0]);

394 dcval = (int) DESCALE((INT32) dcval, 3);	393 dcval = (int) DESCALE((INT32) dcval, 3);

395	394

396 output_buf[0][output_col] = range_limit[dcval & RANGE_MASK];	395 output_buf[0][output_col] = range_limit[dcval & RANGE_MASK];

397 }	396 }

398	397

399 #endif /* IDCT_SCALING_SUPPORTED */	398 #endif /* IDCT_SCALING_SUPPORTED */

400

401 #endif //_FX_JPEG_TURBO_

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