kc3-lang/libjpeg-turbo/jsimd.h

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• Hash : bd49803f
  Author :
  Date : 2016-02-19T08:53:33
  

  Use consistent/modern code formatting for pointers
  
  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.
  

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• jsimd.h

• /*
   * jsimd.h
   *
   * Copyright 2009 Pierre Ossman <ossman@cendio.se> for Cendio AB
   * Copyright 2011, 2014 D. R. Commander
   * Copyright 2015 Matthieu Darbois
   *
   * Based on the x86 SIMD extension for IJG JPEG library,
   * Copyright (C) 1999-2006, MIYASAKA Masaru.
   * For conditions of distribution and use, see copyright notice in jsimdext.inc
   *
   */
  
  #include "jchuff.h"             /* Declarations shared with jcphuff.c */
  
  EXTERN(int) jsimd_can_rgb_ycc (void);
  EXTERN(int) jsimd_can_rgb_gray (void);
  EXTERN(int) jsimd_can_ycc_rgb (void);
  EXTERN(int) jsimd_can_ycc_rgb565 (void);
  EXTERN(int) jsimd_c_can_null_convert (void);
  
  EXTERN(void) jsimd_rgb_ycc_convert
          (j_compress_ptr cinfo, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
           JDIMENSION output_row, int num_rows);
  EXTERN(void) jsimd_rgb_gray_convert
          (j_compress_ptr cinfo, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
           JDIMENSION output_row, int num_rows);
  EXTERN(void) jsimd_ycc_rgb_convert
          (j_decompress_ptr cinfo, JSAMPIMAGE input_buf, JDIMENSION input_row,
           JSAMPARRAY output_buf, int num_rows);
  EXTERN(void) jsimd_ycc_rgb565_convert
          (j_decompress_ptr cinfo, JSAMPIMAGE input_buf, JDIMENSION input_row,
           JSAMPARRAY output_buf, int num_rows);
  EXTERN(void) jsimd_c_null_convert
          (j_compress_ptr cinfo, JSAMPARRAY input_buf, JSAMPIMAGE output_buf,
           JDIMENSION output_row, int num_rows);
  
  EXTERN(int) jsimd_can_h2v2_downsample (void);
  EXTERN(int) jsimd_can_h2v1_downsample (void);
  
  EXTERN(void) jsimd_h2v2_downsample
          (j_compress_ptr cinfo, jpeg_component_info *compptr,
           JSAMPARRAY input_data, JSAMPARRAY output_data);
  
  EXTERN(int) jsimd_can_h2v2_smooth_downsample (void);
  
  EXTERN(void) jsimd_h2v2_smooth_downsample
          (j_compress_ptr cinfo, jpeg_component_info *compptr,
           JSAMPARRAY input_data, JSAMPARRAY output_data);
  
  EXTERN(void) jsimd_h2v1_downsample
          (j_compress_ptr cinfo, jpeg_component_info *compptr,
          JSAMPARRAY input_data, JSAMPARRAY output_data);
  
  EXTERN(int) jsimd_can_h2v2_upsample (void);
  EXTERN(int) jsimd_can_h2v1_upsample (void);
  EXTERN(int) jsimd_can_int_upsample (void);
  
  EXTERN(void) jsimd_h2v2_upsample
          (j_decompress_ptr cinfo, jpeg_component_info *compptr,
           JSAMPARRAY input_data, JSAMPARRAY *output_data_ptr);
  EXTERN(void) jsimd_h2v1_upsample
          (j_decompress_ptr cinfo, jpeg_component_info *compptr,
           JSAMPARRAY input_data, JSAMPARRAY *output_data_ptr);
  EXTERN(void) jsimd_int_upsample
          (j_decompress_ptr cinfo, jpeg_component_info *compptr,
           JSAMPARRAY input_data, JSAMPARRAY *output_data_ptr);
  
  EXTERN(int) jsimd_can_h2v2_fancy_upsample (void);
  EXTERN(int) jsimd_can_h2v1_fancy_upsample (void);
  
  EXTERN(void) jsimd_h2v2_fancy_upsample
          (j_decompress_ptr cinfo, jpeg_component_info *compptr,
           JSAMPARRAY input_data, JSAMPARRAY *output_data_ptr);
  EXTERN(void) jsimd_h2v1_fancy_upsample
          (j_decompress_ptr cinfo, jpeg_component_info *compptr,
           JSAMPARRAY input_data, JSAMPARRAY *output_data_ptr);
  
  EXTERN(int) jsimd_can_h2v2_merged_upsample (void);
  EXTERN(int) jsimd_can_h2v1_merged_upsample (void);
  
  EXTERN(void) jsimd_h2v2_merged_upsample
          (j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
           JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);
  EXTERN(void) jsimd_h2v1_merged_upsample
          (j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
           JDIMENSION in_row_group_ctr, JSAMPARRAY output_buf);
  
  EXTERN(int) jsimd_can_huff_encode_one_block (void);
  
  EXTERN(JOCTET*) jsimd_huff_encode_one_block
          (void *state, JOCTET *buffer, JCOEFPTR block, int last_dc_val,
           c_derived_tbl *dctbl, c_derived_tbl *actbl);
  

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