Update libjpeg to release 8d
This commit is contained in:
135
3rdparty/libjpeg/jddctmgr.c
vendored
135
3rdparty/libjpeg/jddctmgr.c
vendored
@@ -2,6 +2,7 @@
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* jddctmgr.c
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*
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* Copyright (C) 1994-1996, Thomas G. Lane.
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* Modified 2002-2010 by Guido Vollbeding.
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* This file is part of the Independent JPEG Group's software.
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* For conditions of distribution and use, see the accompanying README file.
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*
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@@ -98,22 +99,134 @@ start_pass (j_decompress_ptr cinfo)
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for (ci = 0, compptr = cinfo->comp_info; ci < cinfo->num_components;
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ci++, compptr++) {
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/* Select the proper IDCT routine for this component's scaling */
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switch (compptr->DCT_scaled_size) {
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switch ((compptr->DCT_h_scaled_size << 8) + compptr->DCT_v_scaled_size) {
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#ifdef IDCT_SCALING_SUPPORTED
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case 1:
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case ((1 << 8) + 1):
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method_ptr = jpeg_idct_1x1;
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method = JDCT_ISLOW; /* jidctred uses islow-style table */
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method = JDCT_ISLOW; /* jidctint uses islow-style table */
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break;
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case 2:
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case ((2 << 8) + 2):
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method_ptr = jpeg_idct_2x2;
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method = JDCT_ISLOW; /* jidctred uses islow-style table */
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method = JDCT_ISLOW; /* jidctint uses islow-style table */
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break;
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case 4:
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case ((3 << 8) + 3):
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method_ptr = jpeg_idct_3x3;
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method = JDCT_ISLOW; /* jidctint uses islow-style table */
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break;
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case ((4 << 8) + 4):
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method_ptr = jpeg_idct_4x4;
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method = JDCT_ISLOW; /* jidctred uses islow-style table */
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method = JDCT_ISLOW; /* jidctint uses islow-style table */
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break;
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case ((5 << 8) + 5):
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method_ptr = jpeg_idct_5x5;
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method = JDCT_ISLOW; /* jidctint uses islow-style table */
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break;
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case ((6 << 8) + 6):
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method_ptr = jpeg_idct_6x6;
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method = JDCT_ISLOW; /* jidctint uses islow-style table */
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break;
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case ((7 << 8) + 7):
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method_ptr = jpeg_idct_7x7;
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method = JDCT_ISLOW; /* jidctint uses islow-style table */
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break;
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case ((9 << 8) + 9):
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method_ptr = jpeg_idct_9x9;
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method = JDCT_ISLOW; /* jidctint uses islow-style table */
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break;
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case ((10 << 8) + 10):
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method_ptr = jpeg_idct_10x10;
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method = JDCT_ISLOW; /* jidctint uses islow-style table */
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break;
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case ((11 << 8) + 11):
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method_ptr = jpeg_idct_11x11;
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method = JDCT_ISLOW; /* jidctint uses islow-style table */
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break;
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case ((12 << 8) + 12):
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method_ptr = jpeg_idct_12x12;
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method = JDCT_ISLOW; /* jidctint uses islow-style table */
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break;
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case ((13 << 8) + 13):
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method_ptr = jpeg_idct_13x13;
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method = JDCT_ISLOW; /* jidctint uses islow-style table */
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break;
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case ((14 << 8) + 14):
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method_ptr = jpeg_idct_14x14;
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method = JDCT_ISLOW; /* jidctint uses islow-style table */
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break;
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case ((15 << 8) + 15):
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method_ptr = jpeg_idct_15x15;
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method = JDCT_ISLOW; /* jidctint uses islow-style table */
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break;
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case ((16 << 8) + 16):
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method_ptr = jpeg_idct_16x16;
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method = JDCT_ISLOW; /* jidctint uses islow-style table */
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break;
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case ((16 << 8) + 8):
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method_ptr = jpeg_idct_16x8;
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method = JDCT_ISLOW; /* jidctint uses islow-style table */
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break;
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case ((14 << 8) + 7):
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method_ptr = jpeg_idct_14x7;
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method = JDCT_ISLOW; /* jidctint uses islow-style table */
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break;
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case ((12 << 8) + 6):
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method_ptr = jpeg_idct_12x6;
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method = JDCT_ISLOW; /* jidctint uses islow-style table */
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break;
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case ((10 << 8) + 5):
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method_ptr = jpeg_idct_10x5;
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method = JDCT_ISLOW; /* jidctint uses islow-style table */
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break;
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case ((8 << 8) + 4):
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method_ptr = jpeg_idct_8x4;
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method = JDCT_ISLOW; /* jidctint uses islow-style table */
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break;
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case ((6 << 8) + 3):
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method_ptr = jpeg_idct_6x3;
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method = JDCT_ISLOW; /* jidctint uses islow-style table */
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break;
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case ((4 << 8) + 2):
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method_ptr = jpeg_idct_4x2;
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method = JDCT_ISLOW; /* jidctint uses islow-style table */
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break;
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case ((2 << 8) + 1):
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method_ptr = jpeg_idct_2x1;
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method = JDCT_ISLOW; /* jidctint uses islow-style table */
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break;
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case ((8 << 8) + 16):
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method_ptr = jpeg_idct_8x16;
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method = JDCT_ISLOW; /* jidctint uses islow-style table */
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break;
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case ((7 << 8) + 14):
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method_ptr = jpeg_idct_7x14;
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method = JDCT_ISLOW; /* jidctint uses islow-style table */
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break;
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case ((6 << 8) + 12):
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method_ptr = jpeg_idct_6x12;
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method = JDCT_ISLOW; /* jidctint uses islow-style table */
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break;
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case ((5 << 8) + 10):
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method_ptr = jpeg_idct_5x10;
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method = JDCT_ISLOW; /* jidctint uses islow-style table */
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break;
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case ((4 << 8) + 8):
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method_ptr = jpeg_idct_4x8;
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method = JDCT_ISLOW; /* jidctint uses islow-style table */
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break;
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case ((3 << 8) + 6):
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method_ptr = jpeg_idct_3x6;
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method = JDCT_ISLOW; /* jidctint uses islow-style table */
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break;
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case ((2 << 8) + 4):
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method_ptr = jpeg_idct_2x4;
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method = JDCT_ISLOW; /* jidctint uses islow-style table */
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break;
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case ((1 << 8) + 2):
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method_ptr = jpeg_idct_1x2;
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method = JDCT_ISLOW; /* jidctint uses islow-style table */
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break;
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#endif
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case DCTSIZE:
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case ((DCTSIZE << 8) + DCTSIZE):
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switch (cinfo->dct_method) {
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#ifdef DCT_ISLOW_SUPPORTED
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case JDCT_ISLOW:
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@@ -139,7 +252,8 @@ start_pass (j_decompress_ptr cinfo)
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}
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break;
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default:
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ERREXIT1(cinfo, JERR_BAD_DCTSIZE, compptr->DCT_scaled_size);
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ERREXIT2(cinfo, JERR_BAD_DCTSIZE,
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compptr->DCT_h_scaled_size, compptr->DCT_v_scaled_size);
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break;
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}
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idct->pub.inverse_DCT[ci] = method_ptr;
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@@ -211,6 +325,7 @@ start_pass (j_decompress_ptr cinfo)
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* coefficients scaled by scalefactor[row]*scalefactor[col], where
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* scalefactor[0] = 1
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* scalefactor[k] = cos(k*PI/16) * sqrt(2) for k=1..7
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* We apply a further scale factor of 1/8.
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*/
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FLOAT_MULT_TYPE * fmtbl = (FLOAT_MULT_TYPE *) compptr->dct_table;
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int row, col;
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@@ -224,7 +339,7 @@ start_pass (j_decompress_ptr cinfo)
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for (col = 0; col < DCTSIZE; col++) {
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fmtbl[i] = (FLOAT_MULT_TYPE)
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((double) qtbl->quantval[i] *
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aanscalefactor[row] * aanscalefactor[col]);
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aanscalefactor[row] * aanscalefactor[col] * 0.125);
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i++;
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}
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}
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