diff options
Diffstat (limited to 'media/libjpeg/jdmrgext.c')
-rw-r--r-- | media/libjpeg/jdmrgext.c | 86 |
1 files changed, 42 insertions, 44 deletions
diff --git a/media/libjpeg/jdmrgext.c b/media/libjpeg/jdmrgext.c index 9d7d2af2e9..9bf4f1a307 100644 --- a/media/libjpeg/jdmrgext.c +++ b/media/libjpeg/jdmrgext.c @@ -4,7 +4,7 @@ * 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. + * Copyright (C) 2011, 2015, 2020, D. R. Commander. * For conditions of distribution and use, see the accompanying README.ijg * file. * @@ -21,23 +21,22 @@ INLINE LOCAL(void) -h2v1_merged_upsample_internal (j_decompress_ptr cinfo, - JSAMPIMAGE input_buf, - JDIMENSION in_row_group_ctr, - JSAMPARRAY output_buf) +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; + 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 = 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; + 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]; @@ -47,13 +46,13 @@ h2v1_merged_upsample_internal (j_decompress_ptr cinfo, /* 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++); + cb = *inptr1++; + cr = *inptr2++; cred = Crrtab[cr]; - cgreen = (int) RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS); + cgreen = (int)RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS); cblue = Cbbtab[cb]; /* Fetch 2 Y values and emit 2 pixels */ - y = GETJSAMPLE(*inptr0++); + y = *inptr0++; outptr[RGB_RED] = range_limit[y + cred]; outptr[RGB_GREEN] = range_limit[y + cgreen]; outptr[RGB_BLUE] = range_limit[y + cblue]; @@ -61,7 +60,7 @@ h2v1_merged_upsample_internal (j_decompress_ptr cinfo, outptr[RGB_ALPHA] = 0xFF; #endif outptr += RGB_PIXELSIZE; - y = GETJSAMPLE(*inptr0++); + y = *inptr0++; outptr[RGB_RED] = range_limit[y + cred]; outptr[RGB_GREEN] = range_limit[y + cgreen]; outptr[RGB_BLUE] = range_limit[y + cblue]; @@ -72,12 +71,12 @@ h2v1_merged_upsample_internal (j_decompress_ptr cinfo, } /* If image width is odd, do the last output column separately */ if (cinfo->output_width & 1) { - cb = GETJSAMPLE(*inptr1); - cr = GETJSAMPLE(*inptr2); + cb = *inptr1; + cr = *inptr2; cred = Crrtab[cr]; - cgreen = (int) RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS); + cgreen = (int)RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS); cblue = Cbbtab[cb]; - y = GETJSAMPLE(*inptr0); + y = *inptr0; outptr[RGB_RED] = range_limit[y + cred]; outptr[RGB_GREEN] = range_limit[y + cgreen]; outptr[RGB_BLUE] = range_limit[y + cblue]; @@ -94,27 +93,26 @@ h2v1_merged_upsample_internal (j_decompress_ptr cinfo, INLINE LOCAL(void) -h2v2_merged_upsample_internal (j_decompress_ptr cinfo, - JSAMPIMAGE input_buf, - JDIMENSION in_row_group_ctr, - JSAMPARRAY output_buf) +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; + 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 = 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; + 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]; + 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]; @@ -122,13 +120,13 @@ h2v2_merged_upsample_internal (j_decompress_ptr cinfo, /* 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++); + cb = *inptr1++; + cr = *inptr2++; cred = Crrtab[cr]; - cgreen = (int) RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS); + cgreen = (int)RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS); cblue = Cbbtab[cb]; /* Fetch 4 Y values and emit 4 pixels */ - y = GETJSAMPLE(*inptr00++); + y = *inptr00++; outptr0[RGB_RED] = range_limit[y + cred]; outptr0[RGB_GREEN] = range_limit[y + cgreen]; outptr0[RGB_BLUE] = range_limit[y + cblue]; @@ -136,7 +134,7 @@ h2v2_merged_upsample_internal (j_decompress_ptr cinfo, outptr0[RGB_ALPHA] = 0xFF; #endif outptr0 += RGB_PIXELSIZE; - y = GETJSAMPLE(*inptr00++); + y = *inptr00++; outptr0[RGB_RED] = range_limit[y + cred]; outptr0[RGB_GREEN] = range_limit[y + cgreen]; outptr0[RGB_BLUE] = range_limit[y + cblue]; @@ -144,7 +142,7 @@ h2v2_merged_upsample_internal (j_decompress_ptr cinfo, outptr0[RGB_ALPHA] = 0xFF; #endif outptr0 += RGB_PIXELSIZE; - y = GETJSAMPLE(*inptr01++); + y = *inptr01++; outptr1[RGB_RED] = range_limit[y + cred]; outptr1[RGB_GREEN] = range_limit[y + cgreen]; outptr1[RGB_BLUE] = range_limit[y + cblue]; @@ -152,7 +150,7 @@ h2v2_merged_upsample_internal (j_decompress_ptr cinfo, outptr1[RGB_ALPHA] = 0xFF; #endif outptr1 += RGB_PIXELSIZE; - y = GETJSAMPLE(*inptr01++); + y = *inptr01++; outptr1[RGB_RED] = range_limit[y + cred]; outptr1[RGB_GREEN] = range_limit[y + cgreen]; outptr1[RGB_BLUE] = range_limit[y + cblue]; @@ -163,19 +161,19 @@ h2v2_merged_upsample_internal (j_decompress_ptr cinfo, } /* If image width is odd, do the last output column separately */ if (cinfo->output_width & 1) { - cb = GETJSAMPLE(*inptr1); - cr = GETJSAMPLE(*inptr2); + cb = *inptr1; + cr = *inptr2; cred = Crrtab[cr]; - cgreen = (int) RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS); + cgreen = (int)RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS); cblue = Cbbtab[cb]; - y = GETJSAMPLE(*inptr00); + 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] = 0xFF; #endif - y = GETJSAMPLE(*inptr01); + y = *inptr01; outptr1[RGB_RED] = range_limit[y + cred]; outptr1[RGB_GREEN] = range_limit[y + cgreen]; outptr1[RGB_BLUE] = range_limit[y + cblue]; |