/src/mozilla-central/media/libjpeg/jdmrgext.c

Source (jump to first uncovered line)
/*
 * 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, 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_internal (j_decompress_ptr cinfo,
                               JSAMPIMAGE input_buf,
                               JDIMENSION in_row_group_ctr,
                               JSAMPARRAY output_buf)
{
  my_upsample_ptr upsample = (my_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 = 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 = GETJSAMPLE(*inptr1++);
    cr = GETJSAMPLE(*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  = GETJSAMPLE(*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] = 0xFF;
#endif
    outptr += RGB_PIXELSIZE;
    y  = GETJSAMPLE(*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] = 0xFF;
#endif
    outptr += RGB_PIXELSIZE;
  }
  /* If image width is odd, do the last output column separately */
  if (cinfo->output_width & 1) {
    cb = GETJSAMPLE(*inptr1);
    cr = GETJSAMPLE(*inptr2);
    cred = Crrtab[cr];
    cgreen = (int) RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS);
    cblue = Cbbtab[cb];
    y  = GETJSAMPLE(*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] = 0xFF;
#endif
  }
}


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

INLINE
LOCAL(void)
h2v2_merged_upsample_internal (j_decompress_ptr cinfo,
                               JSAMPIMAGE input_buf,
                               JDIMENSION in_row_group_ctr,
                               JSAMPARRAY output_buf)
{
  my_upsample_ptr upsample = (my_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 = 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 = GETJSAMPLE(*inptr1++);
    cr = GETJSAMPLE(*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  = GETJSAMPLE(*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] = 0xFF;
#endif
    outptr0 += RGB_PIXELSIZE;
    y  = GETJSAMPLE(*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] = 0xFF;
#endif
    outptr0 += RGB_PIXELSIZE;
    y  = GETJSAMPLE(*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] = 0xFF;
#endif
    outptr1 += RGB_PIXELSIZE;
    y  = GETJSAMPLE(*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] = 0xFF;
#endif
    outptr1 += RGB_PIXELSIZE;
  }
  /* If image width is odd, do the last output column separately */
  if (cinfo->output_width & 1) {
    cb = GETJSAMPLE(*inptr1);
    cr = GETJSAMPLE(*inptr2);
    cred = Crrtab[cr];
    cgreen = (int) RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS);
    cblue = Cbbtab[cb];
    y  = GETJSAMPLE(*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] = 0xFF;
#endif
    y  = GETJSAMPLE(*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] = 0xFF;
#endif
  }
}

Coverage Report

Created: 2018-09-25 14:53

Line	Count	Source (jump to first uncovered line)
1		/*
2		* jdmrgext.c
3		*
4		* This file was part of the Independent JPEG Group's software:
5		* Copyright (C) 1994-1996, Thomas G. Lane.
6		* libjpeg-turbo Modifications:
7		* Copyright (C) 2011, 2015, D. R. Commander.
8		* For conditions of distribution and use, see the accompanying README.ijg
9		* file.
10		*
11		* This file contains code for merged upsampling/color conversion.
12		*/
13
14
15		/* This file is included by jdmerge.c */
16
17
18		/*
19		* Upsample and color convert for the case of 2:1 horizontal and 1:1 vertical.
20		*/
21
22		INLINE
23		LOCAL(void)
24		h2v1_merged_upsample_internal (j_decompress_ptr cinfo,
25		JSAMPIMAGE input_buf,
26		JDIMENSION in_row_group_ctr,
27		JSAMPARRAY output_buf)
28	0	{
29	0	my_upsample_ptr upsample = (my_upsample_ptr) cinfo->upsample;
30	0	register int y, cred, cgreen, cblue;
31	0	int cb, cr;
32	0	register JSAMPROW outptr;
33	0	JSAMPROW inptr0, inptr1, inptr2;
34	0	JDIMENSION col;
35	0	/* copy these pointers into registers if possible */
36	0	register JSAMPLE * range_limit = cinfo->sample_range_limit;
37	0	int * Crrtab = upsample->Cr_r_tab;
38	0	int * Cbbtab = upsample->Cb_b_tab;
39	0	JLONG * Crgtab = upsample->Cr_g_tab;
40	0	JLONG * Cbgtab = upsample->Cb_g_tab;
41	0	SHIFT_TEMPS
42	0
43	0	inptr0 = input_buf[0][in_row_group_ctr];
44	0	inptr1 = input_buf[1][in_row_group_ctr];
45	0	inptr2 = input_buf[2][in_row_group_ctr];
46	0	outptr = output_buf[0];
47	0	/* Loop for each pair of output pixels */
48	0	for (col = cinfo->output_width >> 1; col > 0; col--) {
49	0	/* Do the chroma part of the calculation */
50	0	cb = GETJSAMPLE(*inptr1++);
51	0	cr = GETJSAMPLE(*inptr2++);
52	0	cred = Crrtab[cr];
53	0	cgreen = (int) RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS);
54	0	cblue = Cbbtab[cb];
55	0	/* Fetch 2 Y values and emit 2 pixels */
56	0	y = GETJSAMPLE(*inptr0++);
57	0	outptr[RGB_RED] = range_limit[y + cred];
58	0	outptr[RGB_GREEN] = range_limit[y + cgreen];
59	0	outptr[RGB_BLUE] = range_limit[y + cblue];
60		#ifdef RGB_ALPHA
61	0	outptr[RGB_ALPHA] = 0xFF;
62		#endif
63	0	outptr += RGB_PIXELSIZE;
64	0	y = GETJSAMPLE(*inptr0++);
65	0	outptr[RGB_RED] = range_limit[y + cred];
66	0	outptr[RGB_GREEN] = range_limit[y + cgreen];
67	0	outptr[RGB_BLUE] = range_limit[y + cblue];
68		#ifdef RGB_ALPHA
69	0	outptr[RGB_ALPHA] = 0xFF;
70		#endif
71	0	outptr += RGB_PIXELSIZE;
72	0	}
73	0	/* If image width is odd, do the last output column separately */
74	0	if (cinfo->output_width & 1) {
75	0	cb = GETJSAMPLE(*inptr1);
76	0	cr = GETJSAMPLE(*inptr2);
77	0	cred = Crrtab[cr];
78	0	cgreen = (int) RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS);
79	0	cblue = Cbbtab[cb];
80	0	y = GETJSAMPLE(*inptr0);
81	0	outptr[RGB_RED] = range_limit[y + cred];
82	0	outptr[RGB_GREEN] = range_limit[y + cgreen];
83	0	outptr[RGB_BLUE] = range_limit[y + cblue];
84		#ifdef RGB_ALPHA
85	0	outptr[RGB_ALPHA] = 0xFF;
86		#endif
87		}
88	0	} Unexecuted instantiation: jdmerge.c:extrgb_h2v1_merged_upsample_internal Unexecuted instantiation: jdmerge.c:extrgbx_h2v1_merged_upsample_internal Unexecuted instantiation: jdmerge.c:extbgr_h2v1_merged_upsample_internal Unexecuted instantiation: jdmerge.c:extbgrx_h2v1_merged_upsample_internal Unexecuted instantiation: jdmerge.c:extxbgr_h2v1_merged_upsample_internal Unexecuted instantiation: jdmerge.c:extxrgb_h2v1_merged_upsample_internal Unexecuted instantiation: jdmerge.c:h2v1_merged_upsample_internal
89
90
91		/*
92		* Upsample and color convert for the case of 2:1 horizontal and 2:1 vertical.
93		*/
94
95		INLINE
96		LOCAL(void)
97		h2v2_merged_upsample_internal (j_decompress_ptr cinfo,
98		JSAMPIMAGE input_buf,
99		JDIMENSION in_row_group_ctr,
100		JSAMPARRAY output_buf)
101	0	{
102	0	my_upsample_ptr upsample = (my_upsample_ptr) cinfo->upsample;
103	0	register int y, cred, cgreen, cblue;
104	0	int cb, cr;
105	0	register JSAMPROW outptr0, outptr1;
106	0	JSAMPROW inptr00, inptr01, inptr1, inptr2;
107	0	JDIMENSION col;
108	0	/* copy these pointers into registers if possible */
109	0	register JSAMPLE * range_limit = cinfo->sample_range_limit;
110	0	int * Crrtab = upsample->Cr_r_tab;
111	0	int * Cbbtab = upsample->Cb_b_tab;
112	0	JLONG * Crgtab = upsample->Cr_g_tab;
113	0	JLONG * Cbgtab = upsample->Cb_g_tab;
114	0	SHIFT_TEMPS
115	0
116	0	inptr00 = input_buf[0][in_row_group_ctr*2];
117	0	inptr01 = input_buf[0][in_row_group_ctr*2 + 1];
118	0	inptr1 = input_buf[1][in_row_group_ctr];
119	0	inptr2 = input_buf[2][in_row_group_ctr];
120	0	outptr0 = output_buf[0];
121	0	outptr1 = output_buf[1];
122	0	/* Loop for each group of output pixels */
123	0	for (col = cinfo->output_width >> 1; col > 0; col--) {
124	0	/* Do the chroma part of the calculation */
125	0	cb = GETJSAMPLE(*inptr1++);
126	0	cr = GETJSAMPLE(*inptr2++);
127	0	cred = Crrtab[cr];
128	0	cgreen = (int) RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS);
129	0	cblue = Cbbtab[cb];
130	0	/* Fetch 4 Y values and emit 4 pixels */
131	0	y = GETJSAMPLE(*inptr00++);
132	0	outptr0[RGB_RED] = range_limit[y + cred];
133	0	outptr0[RGB_GREEN] = range_limit[y + cgreen];
134	0	outptr0[RGB_BLUE] = range_limit[y + cblue];
135		#ifdef RGB_ALPHA
136	0	outptr0[RGB_ALPHA] = 0xFF;
137		#endif
138	0	outptr0 += RGB_PIXELSIZE;
139	0	y = GETJSAMPLE(*inptr00++);
140	0	outptr0[RGB_RED] = range_limit[y + cred];
141	0	outptr0[RGB_GREEN] = range_limit[y + cgreen];
142	0	outptr0[RGB_BLUE] = range_limit[y + cblue];
143		#ifdef RGB_ALPHA
144	0	outptr0[RGB_ALPHA] = 0xFF;
145		#endif
146	0	outptr0 += RGB_PIXELSIZE;
147	0	y = GETJSAMPLE(*inptr01++);
148	0	outptr1[RGB_RED] = range_limit[y + cred];
149	0	outptr1[RGB_GREEN] = range_limit[y + cgreen];
150	0	outptr1[RGB_BLUE] = range_limit[y + cblue];
151		#ifdef RGB_ALPHA
152	0	outptr1[RGB_ALPHA] = 0xFF;
153		#endif
154	0	outptr1 += RGB_PIXELSIZE;
155	0	y = GETJSAMPLE(*inptr01++);
156	0	outptr1[RGB_RED] = range_limit[y + cred];
157	0	outptr1[RGB_GREEN] = range_limit[y + cgreen];
158	0	outptr1[RGB_BLUE] = range_limit[y + cblue];
159		#ifdef RGB_ALPHA
160	0	outptr1[RGB_ALPHA] = 0xFF;
161		#endif
162	0	outptr1 += RGB_PIXELSIZE;
163	0	}
164	0	/* If image width is odd, do the last output column separately */
165	0	if (cinfo->output_width & 1) {
166	0	cb = GETJSAMPLE(*inptr1);
167	0	cr = GETJSAMPLE(*inptr2);
168	0	cred = Crrtab[cr];
169	0	cgreen = (int) RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS);
170	0	cblue = Cbbtab[cb];
171	0	y = GETJSAMPLE(*inptr00);
172	0	outptr0[RGB_RED] = range_limit[y + cred];
173	0	outptr0[RGB_GREEN] = range_limit[y + cgreen];
174	0	outptr0[RGB_BLUE] = range_limit[y + cblue];
175		#ifdef RGB_ALPHA
176	0	outptr0[RGB_ALPHA] = 0xFF;
177		#endif
178	0	y = GETJSAMPLE(*inptr01);
179	0	outptr1[RGB_RED] = range_limit[y + cred];
180	0	outptr1[RGB_GREEN] = range_limit[y + cgreen];
181	0	outptr1[RGB_BLUE] = range_limit[y + cblue];
182		#ifdef RGB_ALPHA
183	0	outptr1[RGB_ALPHA] = 0xFF;
184		#endif
185		}
186	0	} Unexecuted instantiation: jdmerge.c:extrgb_h2v2_merged_upsample_internal Unexecuted instantiation: jdmerge.c:extrgbx_h2v2_merged_upsample_internal Unexecuted instantiation: jdmerge.c:extbgr_h2v2_merged_upsample_internal Unexecuted instantiation: jdmerge.c:extbgrx_h2v2_merged_upsample_internal Unexecuted instantiation: jdmerge.c:extxbgr_h2v2_merged_upsample_internal Unexecuted instantiation: jdmerge.c:extxrgb_h2v2_merged_upsample_internal Unexecuted instantiation: jdmerge.c:h2v2_merged_upsample_internal