The convention used by libjpeg:
type * variable;
is not very common anymore, because it looks too much like
multiplication. Some (particularly C++ programmers) prefer to tuck the
pointer symbol against the type:
type* variable;
to emphasize that a pointer to a type is effectively a new type.
However, this can also be confusing, since defining multiple variables
on the same line would not work properly:
type* variable1, variable2; /* Only variable1 is actually a
pointer. */
This commit reformats the entirety of the libjpeg-turbo code base so
that it uses the same code formatting convention for pointers that the
TurboJPEG API code uses:
type *variable1, *variable2;
This seems to be the most common convention among C programmers, and
it is the convention used by other codec libraries, such as libpng and
libtiff.
94 lines
3.6 KiB
C
94 lines
3.6 KiB
C
/*
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* jsimd.h
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*
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* Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
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* Copyright 2011, 2014 D. R. Commander
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* Copyright 2015 Matthieu Darbois
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*
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* Based on the x86 SIMD extension for IJG JPEG library,
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* Copyright (C) 1999-2006, MIYASAKA Masaru.
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* For conditions of distribution and use, see copyright notice in jsimdext.inc
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*
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*/
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#include "jchuff.h" /* Declarations shared with jcphuff.c */
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EXTERN(int) jsimd_can_rgb_ycc (void);
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EXTERN(int) jsimd_can_rgb_gray (void);
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EXTERN(int) jsimd_can_ycc_rgb (void);
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EXTERN(int) jsimd_can_ycc_rgb565 (void);
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EXTERN(int) jsimd_c_can_null_convert (void);
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EXTERN(void) jsimd_rgb_ycc_convert
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(j_compress_ptr cinfo, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
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JDIMENSION output_row, int num_rows);
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EXTERN(void) jsimd_rgb_gray_convert
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(j_compress_ptr cinfo, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
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JDIMENSION output_row, int num_rows);
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EXTERN(void) jsimd_ycc_rgb_convert
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(j_decompress_ptr cinfo, JSAMPIMAGE input_buf, JDIMENSION input_row,
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JSAMPARRAY output_buf, int num_rows);
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EXTERN(void) jsimd_ycc_rgb565_convert
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(j_decompress_ptr cinfo, JSAMPIMAGE input_buf, JDIMENSION input_row,
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JSAMPARRAY output_buf, int num_rows);
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EXTERN(void) jsimd_c_null_convert
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(j_compress_ptr cinfo, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
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JDIMENSION output_row, int num_rows);
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EXTERN(int) jsimd_can_h2v2_downsample (void);
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EXTERN(int) jsimd_can_h2v1_downsample (void);
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EXTERN(void) jsimd_h2v2_downsample
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(j_compress_ptr cinfo, jpeg_component_info *compptr,
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JSAMPARRAY input_data, JSAMPARRAY output_data);
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EXTERN(int) jsimd_can_h2v2_smooth_downsample (void);
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EXTERN(void) jsimd_h2v2_smooth_downsample
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(j_compress_ptr cinfo, jpeg_component_info *compptr,
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JSAMPARRAY input_data, JSAMPARRAY output_data);
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EXTERN(void) jsimd_h2v1_downsample
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(j_compress_ptr cinfo, jpeg_component_info *compptr,
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JSAMPARRAY input_data, JSAMPARRAY output_data);
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EXTERN(int) jsimd_can_h2v2_upsample (void);
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EXTERN(int) jsimd_can_h2v1_upsample (void);
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EXTERN(int) jsimd_can_int_upsample (void);
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EXTERN(void) jsimd_h2v2_upsample
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(j_decompress_ptr cinfo, jpeg_component_info *compptr,
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JSAMPARRAY input_data, JSAMPARRAY *output_data_ptr);
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EXTERN(void) jsimd_h2v1_upsample
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(j_decompress_ptr cinfo, jpeg_component_info *compptr,
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JSAMPARRAY input_data, JSAMPARRAY *output_data_ptr);
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EXTERN(void) jsimd_int_upsample
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(j_decompress_ptr cinfo, jpeg_component_info *compptr,
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JSAMPARRAY input_data, JSAMPARRAY *output_data_ptr);
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EXTERN(int) jsimd_can_h2v2_fancy_upsample (void);
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EXTERN(int) jsimd_can_h2v1_fancy_upsample (void);
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EXTERN(void) jsimd_h2v2_fancy_upsample
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(j_decompress_ptr cinfo, jpeg_component_info *compptr,
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JSAMPARRAY input_data, JSAMPARRAY *output_data_ptr);
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EXTERN(void) jsimd_h2v1_fancy_upsample
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(j_decompress_ptr cinfo, jpeg_component_info *compptr,
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JSAMPARRAY input_data, JSAMPARRAY *output_data_ptr);
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EXTERN(int) jsimd_can_h2v2_merged_upsample (void);
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EXTERN(int) jsimd_can_h2v1_merged_upsample (void);
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EXTERN(void) jsimd_h2v2_merged_upsample
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(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
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JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);
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EXTERN(void) jsimd_h2v1_merged_upsample
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(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
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JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);
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EXTERN(int) jsimd_can_huff_encode_one_block (void);
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EXTERN(JOCTET*) jsimd_huff_encode_one_block
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(void *state, JOCTET *buffer, JCOEFPTR block, int last_dc_val,
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c_derived_tbl *dctbl, c_derived_tbl *actbl);
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