/*

 * jdmrgext.c

 *

 * This file was part of the Independent JPEG Group's software:

 * Copyright (C) 1994-1996, Thomas G. Lane.

 * libjpeg-turbo Modifications:

 * Copyright (C) 2011, 2015, 2020, 2022-2023, 2025, D. R. Commander.

 * For conditions of distribution and use, see the accompanying README.ijg

 * file.

 *

 * This file contains code for merged upsampling/color conversion.

 */

/* This file is included by jdmerge.c */

/*

 * Upsample and color convert for the case of 2:1 horizontal and 1:1 vertical.

 */

INLINE

LOCAL(void)

h2v1_merged_upsample(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,

                     JDIMENSION in_row_group_ctr, _JSAMPARRAY output_buf)

{

  my_merged_upsample_ptr upsample = (my_merged_upsample_ptr)cinfo->upsample;

  register int y, cred, cgreen, cblue;

  int cb, cr;

  register _JSAMPROW outptr;

  _JSAMPROW inptr0, inptr1, inptr2;

  JDIMENSION col;

  /* copy these pointers into registers if possible */

  register _JSAMPLE *range_limit = (_JSAMPLE *)cinfo->sample_range_limit;

  int *Crrtab = upsample->Cr_r_tab;

  int *Cbbtab = upsample->Cb_b_tab;

  JLONG *Crgtab = upsample->Cr_g_tab;

  JLONG *Cbgtab = upsample->Cb_g_tab;

  SHIFT_TEMPS

  inptr0 = input_buf[0][in_row_group_ctr];

  inptr1 = input_buf[1][in_row_group_ctr];

  inptr2 = input_buf[2][in_row_group_ctr];

  outptr = output_buf[0];

  /* Loop for each pair of output pixels */

  for (col = cinfo->output_width >> 1; col > 0; col--) {

    /* Do the chroma part of the calculation */

    cb = *inptr1++;

    cr = *inptr2++;

    cred = Crrtab[cr];

    cgreen = (int)RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS);

    cblue = Cbbtab[cb];

    /* Fetch 2 Y values and emit 2 pixels */

    y  = *inptr0++;

    outptr[RGB_RED] =   range_limit[y + cred];

    outptr[RGB_GREEN] = range_limit[y + cgreen];

    outptr[RGB_BLUE] =  range_limit[y + cblue];

#ifdef RGB_ALPHA

    outptr[RGB_ALPHA] = _MAXJSAMPLE;

#endif

    outptr += RGB_PIXELSIZE;

    y  = *inptr0++;

    outptr[RGB_RED] =   range_limit[y + cred];

    outptr[RGB_GREEN] = range_limit[y + cgreen];

    outptr[RGB_BLUE] =  range_limit[y + cblue];

#ifdef RGB_ALPHA

    outptr[RGB_ALPHA] = _MAXJSAMPLE;

#endif

    outptr += RGB_PIXELSIZE;

  }

  /* If image width is odd, do the last output column separately */

  if (cinfo->output_width & 1) {

    cb = *inptr1;

    cr = *inptr2;

    cred = Crrtab[cr];

    cgreen = (int)RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS);

    cblue = Cbbtab[cb];

    y  = *inptr0;

    outptr[RGB_RED] =   range_limit[y + cred];

    outptr[RGB_GREEN] = range_limit[y + cgreen];

    outptr[RGB_BLUE] =  range_limit[y + cblue];

#ifdef RGB_ALPHA

    outptr[RGB_ALPHA] = _MAXJSAMPLE;

#endif

  }

}

Unexecuted instantiation: jdmerge-8.c:extrgb_h2v1_merged_upsample

Unexecuted instantiation: jdmerge-8.c:extrgbx_h2v1_merged_upsample

Unexecuted instantiation: jdmerge-8.c:extbgr_h2v1_merged_upsample

Unexecuted instantiation: jdmerge-8.c:extbgrx_h2v1_merged_upsample

Unexecuted instantiation: jdmerge-8.c:extxbgr_h2v1_merged_upsample

Unexecuted instantiation: jdmerge-8.c:extxrgb_h2v1_merged_upsample

Unexecuted instantiation: jdmerge-8.c:h2v1_merged_upsample

jdmerge-12.c:extrgb_h2v1_merged_upsample

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{

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  my_merged_upsample_ptr upsample = (my_merged_upsample_ptr)cinfo->upsample;

28

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  register int y, cred, cgreen, cblue;

29

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  int cb, cr;

30

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  register _JSAMPROW outptr;

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  _JSAMPROW inptr0, inptr1, inptr2;

32

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  JDIMENSION col;

33

  /* copy these pointers into registers if possible */

34

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  register _JSAMPLE *range_limit = (_JSAMPLE *)cinfo->sample_range_limit;

35

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  int *Crrtab = upsample->Cr_r_tab;

36

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  int *Cbbtab = upsample->Cb_b_tab;

37

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  JLONG *Crgtab = upsample->Cr_g_tab;

38

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  JLONG *Cbgtab = upsample->Cb_g_tab;

39

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  SHIFT_TEMPS

40

41

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  inptr0 = input_buf[0][in_row_group_ctr];

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  inptr1 = input_buf[1][in_row_group_ctr];

43

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  inptr2 = input_buf[2][in_row_group_ctr];

44

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  outptr = output_buf[0];

45

  /* Loop for each pair of output pixels */

46

2.85M

  for (col = cinfo->output_width >> 1; col > 0; col--) {

47

    /* Do the chroma part of the calculation */

48

2.68M

    cb = *inptr1++;

49

2.68M

    cr = *inptr2++;

50

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    cred = Crrtab[cr];

51

2.68M

    cgreen = (int)RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS);

52

2.68M

    cblue = Cbbtab[cb];

53

    /* Fetch 2 Y values and emit 2 pixels */

54

2.68M

    y  = *inptr0++;

55

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    outptr[RGB_RED] =   range_limit[y + cred];

56

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    outptr[RGB_GREEN] = range_limit[y + cgreen];

57

2.68M

    outptr[RGB_BLUE] =  range_limit[y + cblue];

58

#ifdef RGB_ALPHA

59

    outptr[RGB_ALPHA] = _MAXJSAMPLE;

60

#endif

61

2.68M

    outptr += RGB_PIXELSIZE;

62

2.68M

    y  = *inptr0++;

63

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    outptr[RGB_RED] =   range_limit[y + cred];

64

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    outptr[RGB_GREEN] = range_limit[y + cgreen];

65

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    outptr[RGB_BLUE] =  range_limit[y + cblue];

66

#ifdef RGB_ALPHA

67

    outptr[RGB_ALPHA] = _MAXJSAMPLE;

68

#endif

69

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    outptr += RGB_PIXELSIZE;

70

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  }

71

  /* If image width is odd, do the last output column separately */

72

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  if (cinfo->output_width & 1) {

73

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    cb = *inptr1;

74

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    cr = *inptr2;

75

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    cred = Crrtab[cr];

76

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    cgreen = (int)RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS);

77

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    cblue = Cbbtab[cb];

78

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    y  = *inptr0;

79

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    outptr[RGB_RED] =   range_limit[y + cred];

80

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    outptr[RGB_GREEN] = range_limit[y + cgreen];

81

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    outptr[RGB_BLUE] =  range_limit[y + cblue];

82

#ifdef RGB_ALPHA

83

    outptr[RGB_ALPHA] = _MAXJSAMPLE;

84

#endif

85

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  }

86

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}

Unexecuted instantiation: jdmerge-12.c:extrgbx_h2v1_merged_upsample

Unexecuted instantiation: jdmerge-12.c:extbgr_h2v1_merged_upsample

Unexecuted instantiation: jdmerge-12.c:extbgrx_h2v1_merged_upsample

Unexecuted instantiation: jdmerge-12.c:extxbgr_h2v1_merged_upsample

Unexecuted instantiation: jdmerge-12.c:extxrgb_h2v1_merged_upsample

/*

 * Upsample and color convert for the case of 2:1 horizontal and 2:1 vertical.

 */

INLINE

LOCAL(void)

h2v2_merged_upsample(j_decompress_ptr cinfo, _JSAMPIMAGE input_buf,

                     JDIMENSION in_row_group_ctr, _JSAMPARRAY output_buf)

{

  my_merged_upsample_ptr upsample = (my_merged_upsample_ptr)cinfo->upsample;

  register int y, cred, cgreen, cblue;

  int cb, cr;

  register _JSAMPROW outptr0, outptr1;

  _JSAMPROW inptr00, inptr01, inptr1, inptr2;

  JDIMENSION col;

  /* copy these pointers into registers if possible */

  register _JSAMPLE *range_limit = (_JSAMPLE *)cinfo->sample_range_limit;

  int *Crrtab = upsample->Cr_r_tab;

  int *Cbbtab = upsample->Cb_b_tab;

  JLONG *Crgtab = upsample->Cr_g_tab;

  JLONG *Cbgtab = upsample->Cb_g_tab;

  SHIFT_TEMPS

  inptr00 = input_buf[0][in_row_group_ctr * 2];

  inptr01 = input_buf[0][in_row_group_ctr * 2 + 1];

  inptr1 = input_buf[1][in_row_group_ctr];

  inptr2 = input_buf[2][in_row_group_ctr];

  outptr0 = output_buf[0];

  outptr1 = output_buf[1];

  /* Loop for each group of output pixels */

  for (col = cinfo->output_width >> 1; col > 0; col--) {

    /* Do the chroma part of the calculation */

    cb = *inptr1++;

    cr = *inptr2++;

    cred = Crrtab[cr];

    cgreen = (int)RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS);

    cblue = Cbbtab[cb];

    /* Fetch 4 Y values and emit 4 pixels */

    y  = *inptr00++;

    outptr0[RGB_RED] =   range_limit[y + cred];

    outptr0[RGB_GREEN] = range_limit[y + cgreen];

    outptr0[RGB_BLUE] =  range_limit[y + cblue];

#ifdef RGB_ALPHA

    outptr0[RGB_ALPHA] = _MAXJSAMPLE;

#endif

    outptr0 += RGB_PIXELSIZE;

    y  = *inptr00++;

    outptr0[RGB_RED] =   range_limit[y + cred];

    outptr0[RGB_GREEN] = range_limit[y + cgreen];

    outptr0[RGB_BLUE] =  range_limit[y + cblue];

#ifdef RGB_ALPHA

    outptr0[RGB_ALPHA] = _MAXJSAMPLE;

#endif

    outptr0 += RGB_PIXELSIZE;

    y  = *inptr01++;

    outptr1[RGB_RED] =   range_limit[y + cred];

    outptr1[RGB_GREEN] = range_limit[y + cgreen];

    outptr1[RGB_BLUE] =  range_limit[y + cblue];

#ifdef RGB_ALPHA

    outptr1[RGB_ALPHA] = _MAXJSAMPLE;

#endif

    outptr1 += RGB_PIXELSIZE;

    y  = *inptr01++;

    outptr1[RGB_RED] =   range_limit[y + cred];

    outptr1[RGB_GREEN] = range_limit[y + cgreen];

    outptr1[RGB_BLUE] =  range_limit[y + cblue];

#ifdef RGB_ALPHA

    outptr1[RGB_ALPHA] = _MAXJSAMPLE;

#endif

    outptr1 += RGB_PIXELSIZE;

  }

  /* If image width is odd, do the last output column separately */

  if (cinfo->output_width & 1) {

    cb = *inptr1;

    cr = *inptr2;

    cred = Crrtab[cr];

    cgreen = (int)RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS);

    cblue = Cbbtab[cb];

    y  = *inptr00;

    outptr0[RGB_RED] =   range_limit[y + cred];

    outptr0[RGB_GREEN] = range_limit[y + cgreen];

    outptr0[RGB_BLUE] =  range_limit[y + cblue];

#ifdef RGB_ALPHA

    outptr0[RGB_ALPHA] = _MAXJSAMPLE;

#endif

    y  = *inptr01;

    outptr1[RGB_RED] =   range_limit[y + cred];

    outptr1[RGB_GREEN] = range_limit[y + cgreen];

    outptr1[RGB_BLUE] =  range_limit[y + cblue];

#ifdef RGB_ALPHA

    outptr1[RGB_ALPHA] = _MAXJSAMPLE;

#endif

  }

}

Unexecuted instantiation: jdmerge-8.c:extrgb_h2v2_merged_upsample

Unexecuted instantiation: jdmerge-8.c:extrgbx_h2v2_merged_upsample

Unexecuted instantiation: jdmerge-8.c:extbgr_h2v2_merged_upsample

Unexecuted instantiation: jdmerge-8.c:extbgrx_h2v2_merged_upsample

Unexecuted instantiation: jdmerge-8.c:extxbgr_h2v2_merged_upsample

Unexecuted instantiation: jdmerge-8.c:extxrgb_h2v2_merged_upsample

Unexecuted instantiation: jdmerge-8.c:h2v2_merged_upsample

jdmerge-12.c:extrgb_h2v2_merged_upsample

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{

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  my_merged_upsample_ptr upsample = (my_merged_upsample_ptr)cinfo->upsample;

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  register int y, cred, cgreen, cblue;

100

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  int cb, cr;

101

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  register _JSAMPROW outptr0, outptr1;

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  _JSAMPROW inptr00, inptr01, inptr1, inptr2;

103

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  JDIMENSION col;

104

  /* copy these pointers into registers if possible */

105

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  register _JSAMPLE *range_limit = (_JSAMPLE *)cinfo->sample_range_limit;

106

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  int *Crrtab = upsample->Cr_r_tab;

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  int *Cbbtab = upsample->Cb_b_tab;

108

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  JLONG *Crgtab = upsample->Cr_g_tab;

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  JLONG *Cbgtab = upsample->Cb_g_tab;

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  SHIFT_TEMPS

111

112

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  inptr00 = input_buf[0][in_row_group_ctr * 2];

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  inptr01 = input_buf[0][in_row_group_ctr * 2 + 1];

114

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  inptr1 = input_buf[1][in_row_group_ctr];

115

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  inptr2 = input_buf[2][in_row_group_ctr];

116

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  outptr0 = output_buf[0];

117

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  outptr1 = output_buf[1];

118

  /* Loop for each group of output pixels */

119

5.36M

  for (col = cinfo->output_width >> 1; col > 0; col--) {

120

    /* Do the chroma part of the calculation */

121

5.10M

    cb = *inptr1++;

122

5.10M

    cr = *inptr2++;

123

5.10M

    cred = Crrtab[cr];

124

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    cgreen = (int)RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS);

125

5.10M

    cblue = Cbbtab[cb];

126

    /* Fetch 4 Y values and emit 4 pixels */

127

5.10M

    y  = *inptr00++;

128

5.10M

    outptr0[RGB_RED] =   range_limit[y + cred];

129

5.10M

    outptr0[RGB_GREEN] = range_limit[y + cgreen];

130

5.10M

    outptr0[RGB_BLUE] =  range_limit[y + cblue];

131

#ifdef RGB_ALPHA

132

    outptr0[RGB_ALPHA] = _MAXJSAMPLE;

133

#endif

134

5.10M

    outptr0 += RGB_PIXELSIZE;

135

5.10M

    y  = *inptr00++;

136

5.10M

    outptr0[RGB_RED] =   range_limit[y + cred];

137

5.10M

    outptr0[RGB_GREEN] = range_limit[y + cgreen];

138

5.10M

    outptr0[RGB_BLUE] =  range_limit[y + cblue];

139

#ifdef RGB_ALPHA

140

    outptr0[RGB_ALPHA] = _MAXJSAMPLE;

141

#endif

142

5.10M

    outptr0 += RGB_PIXELSIZE;

143

5.10M

    y  = *inptr01++;

144

5.10M

    outptr1[RGB_RED] =   range_limit[y + cred];

145

5.10M

    outptr1[RGB_GREEN] = range_limit[y + cgreen];

146

5.10M

    outptr1[RGB_BLUE] =  range_limit[y + cblue];

147

#ifdef RGB_ALPHA

148

    outptr1[RGB_ALPHA] = _MAXJSAMPLE;

149

#endif

150

5.10M

    outptr1 += RGB_PIXELSIZE;

151

5.10M

    y  = *inptr01++;

152

5.10M

    outptr1[RGB_RED] =   range_limit[y + cred];

153

5.10M

    outptr1[RGB_GREEN] = range_limit[y + cgreen];

154

5.10M

    outptr1[RGB_BLUE] =  range_limit[y + cblue];

155

#ifdef RGB_ALPHA

156

    outptr1[RGB_ALPHA] = _MAXJSAMPLE;

157

#endif

158

5.10M

    outptr1 += RGB_PIXELSIZE;

159

5.10M

  }

160

  /* If image width is odd, do the last output column separately */

161

265k

  if (cinfo->output_width & 1) {

162

218k

    cb = *inptr1;

163

218k

    cr = *inptr2;

164

218k

    cred = Crrtab[cr];

165

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    cgreen = (int)RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS);

166

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    cblue = Cbbtab[cb];

167

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    y  = *inptr00;

168

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    outptr0[RGB_RED] =   range_limit[y + cred];

169

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    outptr0[RGB_GREEN] = range_limit[y + cgreen];

170

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    outptr0[RGB_BLUE] =  range_limit[y + cblue];

171

#ifdef RGB_ALPHA

172

    outptr0[RGB_ALPHA] = _MAXJSAMPLE;

173

#endif

174

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    y  = *inptr01;

175

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    outptr1[RGB_RED] =   range_limit[y + cred];

176

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    outptr1[RGB_GREEN] = range_limit[y + cgreen];

177

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    outptr1[RGB_BLUE] =  range_limit[y + cblue];

178

#ifdef RGB_ALPHA

179

    outptr1[RGB_ALPHA] = _MAXJSAMPLE;

180

#endif

181

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  }

182

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}

Unexecuted instantiation: jdmerge-12.c:extrgbx_h2v2_merged_upsample

Unexecuted instantiation: jdmerge-12.c:extbgr_h2v2_merged_upsample

Unexecuted instantiation: jdmerge-12.c:extbgrx_h2v2_merged_upsample

Unexecuted instantiation: jdmerge-12.c:extxbgr_h2v2_merged_upsample

Unexecuted instantiation: jdmerge-12.c:extxrgb_h2v2_merged_upsample