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4991ef2f9d
Also includes the fix for upstream issue #288 to avoid crashes on some older Win7 systems. Differential Revision: https://phabricator.services.mozilla.com/D7758 --HG-- rename : media/libjpeg/simd/jsimd_arm.c => media/libjpeg/simd/arm/jsimd.c rename : media/libjpeg/simd/jsimd_arm_neon.S => media/libjpeg/simd/arm/jsimd_neon.S rename : media/libjpeg/simd/jsimd_arm64.c => media/libjpeg/simd/arm64/jsimd.c rename : media/libjpeg/simd/jsimd_arm64_neon.S => media/libjpeg/simd/arm64/jsimd_neon.S rename : media/libjpeg/simd/jccolext-mmx.asm => media/libjpeg/simd/i386/jccolext-mmx.asm rename : media/libjpeg/simd/jccolext-sse2.asm => media/libjpeg/simd/i386/jccolext-sse2.asm rename : media/libjpeg/simd/jccolor-mmx.asm => media/libjpeg/simd/i386/jccolor-mmx.asm rename : media/libjpeg/simd/jccolor-sse2.asm => media/libjpeg/simd/i386/jccolor-sse2.asm rename : media/libjpeg/simd/jcgray-mmx.asm => media/libjpeg/simd/i386/jcgray-mmx.asm rename : media/libjpeg/simd/jcgray-sse2.asm => media/libjpeg/simd/i386/jcgray-sse2.asm rename : media/libjpeg/simd/jcgryext-mmx.asm => media/libjpeg/simd/i386/jcgryext-mmx.asm rename : media/libjpeg/simd/jcgryext-sse2.asm => media/libjpeg/simd/i386/jcgryext-sse2.asm rename : media/libjpeg/simd/jchuff-sse2.asm => media/libjpeg/simd/i386/jchuff-sse2.asm rename : media/libjpeg/simd/jcsample-mmx.asm => media/libjpeg/simd/i386/jcsample-mmx.asm rename : media/libjpeg/simd/jcsample-sse2.asm => media/libjpeg/simd/i386/jcsample-sse2.asm rename : media/libjpeg/simd/jdcolext-mmx.asm => media/libjpeg/simd/i386/jdcolext-mmx.asm rename : media/libjpeg/simd/jdcolext-sse2.asm => media/libjpeg/simd/i386/jdcolext-sse2.asm rename : media/libjpeg/simd/jdcolor-mmx.asm => media/libjpeg/simd/i386/jdcolor-mmx.asm rename : media/libjpeg/simd/jdcolor-sse2.asm => media/libjpeg/simd/i386/jdcolor-sse2.asm rename : media/libjpeg/simd/jdmerge-mmx.asm => media/libjpeg/simd/i386/jdmerge-mmx.asm rename : media/libjpeg/simd/jdmerge-sse2.asm => media/libjpeg/simd/i386/jdmerge-sse2.asm rename : media/libjpeg/simd/jdmrgext-mmx.asm => media/libjpeg/simd/i386/jdmrgext-mmx.asm rename : media/libjpeg/simd/jdmrgext-sse2.asm => media/libjpeg/simd/i386/jdmrgext-sse2.asm rename : media/libjpeg/simd/jdsample-mmx.asm => media/libjpeg/simd/i386/jdsample-mmx.asm rename : media/libjpeg/simd/jdsample-sse2.asm => media/libjpeg/simd/i386/jdsample-sse2.asm rename : media/libjpeg/simd/jfdctflt-3dn.asm => media/libjpeg/simd/i386/jfdctflt-3dn.asm rename : media/libjpeg/simd/jfdctflt-sse.asm => media/libjpeg/simd/i386/jfdctflt-sse.asm rename : media/libjpeg/simd/jfdctfst-mmx.asm => media/libjpeg/simd/i386/jfdctfst-mmx.asm rename : media/libjpeg/simd/jfdctfst-sse2.asm => media/libjpeg/simd/i386/jfdctfst-sse2.asm rename : media/libjpeg/simd/jfdctint-mmx.asm => media/libjpeg/simd/i386/jfdctint-mmx.asm rename : media/libjpeg/simd/jfdctint-sse2.asm => media/libjpeg/simd/i386/jfdctint-sse2.asm rename : media/libjpeg/simd/jidctflt-3dn.asm => media/libjpeg/simd/i386/jidctflt-3dn.asm rename : media/libjpeg/simd/jidctflt-sse.asm => media/libjpeg/simd/i386/jidctflt-sse.asm rename : media/libjpeg/simd/jidctflt-sse2.asm => media/libjpeg/simd/i386/jidctflt-sse2.asm rename : media/libjpeg/simd/jidctfst-mmx.asm => media/libjpeg/simd/i386/jidctfst-mmx.asm rename : media/libjpeg/simd/jidctfst-sse2.asm => media/libjpeg/simd/i386/jidctfst-sse2.asm rename : media/libjpeg/simd/jidctint-mmx.asm => media/libjpeg/simd/i386/jidctint-mmx.asm rename : media/libjpeg/simd/jidctint-sse2.asm => media/libjpeg/simd/i386/jidctint-sse2.asm rename : media/libjpeg/simd/jidctred-mmx.asm => media/libjpeg/simd/i386/jidctred-mmx.asm rename : media/libjpeg/simd/jidctred-sse2.asm => media/libjpeg/simd/i386/jidctred-sse2.asm rename : media/libjpeg/simd/jquant-3dn.asm => media/libjpeg/simd/i386/jquant-3dn.asm rename : media/libjpeg/simd/jquant-mmx.asm => media/libjpeg/simd/i386/jquant-mmx.asm rename : media/libjpeg/simd/jquant-sse.asm => media/libjpeg/simd/i386/jquant-sse.asm rename : media/libjpeg/simd/jquantf-sse2.asm => media/libjpeg/simd/i386/jquantf-sse2.asm rename : media/libjpeg/simd/jquanti-sse2.asm => media/libjpeg/simd/i386/jquanti-sse2.asm rename : media/libjpeg/simd/jsimd_i386.c => media/libjpeg/simd/i386/jsimd.c rename : media/libjpeg/simd/jsimdcpu.asm => media/libjpeg/simd/i386/jsimdcpu.asm rename : media/libjpeg/simd/jsimd_mips.c => media/libjpeg/simd/mips/jsimd.c rename : media/libjpeg/simd/jsimd_mips_dspr2.S => media/libjpeg/simd/mips/jsimd_dspr2.S rename : media/libjpeg/simd/jsimd_mips_dspr2_asm.h => media/libjpeg/simd/mips/jsimd_dspr2_asm.h rename : media/libjpeg/simd/jcolsamp.inc => media/libjpeg/simd/nasm/jcolsamp.inc rename : media/libjpeg/simd/jdct.inc => media/libjpeg/simd/nasm/jdct.inc rename : media/libjpeg/simd/jpeg_nbits_table.inc => media/libjpeg/simd/nasm/jpeg_nbits_table.inc rename : media/libjpeg/simd/jsimdcfg.inc => media/libjpeg/simd/nasm/jsimdcfg.inc rename : media/libjpeg/simd/jsimdext.inc => media/libjpeg/simd/nasm/jsimdext.inc rename : media/libjpeg/simd/jccolext-altivec.c => media/libjpeg/simd/powerpc/jccolext-altivec.c rename : media/libjpeg/simd/jccolor-altivec.c => media/libjpeg/simd/powerpc/jccolor-altivec.c rename : media/libjpeg/simd/jcgray-altivec.c => media/libjpeg/simd/powerpc/jcgray-altivec.c rename : media/libjpeg/simd/jcgryext-altivec.c => media/libjpeg/simd/powerpc/jcgryext-altivec.c rename : media/libjpeg/simd/jcsample-altivec.c => media/libjpeg/simd/powerpc/jcsample-altivec.c rename : media/libjpeg/simd/jcsample.h => media/libjpeg/simd/powerpc/jcsample.h rename : media/libjpeg/simd/jdcolext-altivec.c => media/libjpeg/simd/powerpc/jdcolext-altivec.c rename : media/libjpeg/simd/jdcolor-altivec.c => media/libjpeg/simd/powerpc/jdcolor-altivec.c rename : media/libjpeg/simd/jdmerge-altivec.c => media/libjpeg/simd/powerpc/jdmerge-altivec.c rename : media/libjpeg/simd/jdmrgext-altivec.c => media/libjpeg/simd/powerpc/jdmrgext-altivec.c rename : media/libjpeg/simd/jdsample-altivec.c => media/libjpeg/simd/powerpc/jdsample-altivec.c rename : media/libjpeg/simd/jfdctfst-altivec.c => media/libjpeg/simd/powerpc/jfdctfst-altivec.c rename : media/libjpeg/simd/jfdctint-altivec.c => media/libjpeg/simd/powerpc/jfdctint-altivec.c rename : media/libjpeg/simd/jidctfst-altivec.c => media/libjpeg/simd/powerpc/jidctfst-altivec.c rename : media/libjpeg/simd/jidctint-altivec.c => media/libjpeg/simd/powerpc/jidctint-altivec.c rename : media/libjpeg/simd/jquanti-altivec.c => media/libjpeg/simd/powerpc/jquanti-altivec.c rename : media/libjpeg/simd/jsimd_powerpc.c => media/libjpeg/simd/powerpc/jsimd.c rename : media/libjpeg/simd/jsimd_altivec.h => media/libjpeg/simd/powerpc/jsimd_altivec.h rename : media/libjpeg/simd/jccolext-sse2-64.asm => media/libjpeg/simd/x86_64/jccolext-sse2.asm rename : media/libjpeg/simd/jccolor-sse2-64.asm => media/libjpeg/simd/x86_64/jccolor-sse2.asm rename : media/libjpeg/simd/jcgray-sse2-64.asm => media/libjpeg/simd/x86_64/jcgray-sse2.asm rename : media/libjpeg/simd/jcgryext-sse2-64.asm => media/libjpeg/simd/x86_64/jcgryext-sse2.asm rename : media/libjpeg/simd/jchuff-sse2-64.asm => media/libjpeg/simd/x86_64/jchuff-sse2.asm rename : media/libjpeg/simd/jcsample-sse2-64.asm => media/libjpeg/simd/x86_64/jcsample-sse2.asm rename : media/libjpeg/simd/jdcolext-sse2-64.asm => media/libjpeg/simd/x86_64/jdcolext-sse2.asm rename : media/libjpeg/simd/jdcolor-sse2-64.asm => media/libjpeg/simd/x86_64/jdcolor-sse2.asm rename : media/libjpeg/simd/jdmerge-sse2-64.asm => media/libjpeg/simd/x86_64/jdmerge-sse2.asm rename : media/libjpeg/simd/jdmrgext-sse2-64.asm => media/libjpeg/simd/x86_64/jdmrgext-sse2.asm rename : media/libjpeg/simd/jdsample-sse2-64.asm => media/libjpeg/simd/x86_64/jdsample-sse2.asm rename : media/libjpeg/simd/jfdctflt-sse-64.asm => media/libjpeg/simd/x86_64/jfdctflt-sse.asm rename : media/libjpeg/simd/jfdctfst-sse2-64.asm => media/libjpeg/simd/x86_64/jfdctfst-sse2.asm rename : media/libjpeg/simd/jfdctint-sse2-64.asm => media/libjpeg/simd/x86_64/jfdctint-sse2.asm rename : media/libjpeg/simd/jidctflt-sse2-64.asm => media/libjpeg/simd/x86_64/jidctflt-sse2.asm rename : media/libjpeg/simd/jidctfst-sse2-64.asm => media/libjpeg/simd/x86_64/jidctfst-sse2.asm rename : media/libjpeg/simd/jidctint-sse2-64.asm => media/libjpeg/simd/x86_64/jidctint-sse2.asm rename : media/libjpeg/simd/jidctred-sse2-64.asm => media/libjpeg/simd/x86_64/jidctred-sse2.asm rename : media/libjpeg/simd/jquantf-sse2-64.asm => media/libjpeg/simd/x86_64/jquantf-sse2.asm rename : media/libjpeg/simd/jquanti-sse2-64.asm => media/libjpeg/simd/x86_64/jquanti-sse2.asm rename : media/libjpeg/simd/jsimd_x86_64.c => media/libjpeg/simd/x86_64/jsimd.c extra : moz-landing-system : lando
355 lines
11 KiB
C
355 lines
11 KiB
C
/*
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* jdmrg565.c
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*
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* This file was part of the Independent JPEG Group's software:
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* Copyright (C) 1994-1996, Thomas G. Lane.
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* libjpeg-turbo Modifications:
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* Copyright (C) 2013, Linaro Limited.
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* Copyright (C) 2014-2015, 2018, D. R. Commander.
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* For conditions of distribution and use, see the accompanying README.ijg
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* file.
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*
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* This file contains code for merged upsampling/color conversion.
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*/
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INLINE
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LOCAL(void)
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h2v1_merged_upsample_565_internal(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
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JDIMENSION in_row_group_ctr,
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JSAMPARRAY output_buf)
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{
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my_upsample_ptr upsample = (my_upsample_ptr)cinfo->upsample;
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register int y, cred, cgreen, cblue;
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int cb, cr;
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register JSAMPROW outptr;
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JSAMPROW inptr0, inptr1, inptr2;
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JDIMENSION col;
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/* copy these pointers into registers if possible */
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register JSAMPLE *range_limit = cinfo->sample_range_limit;
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int *Crrtab = upsample->Cr_r_tab;
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int *Cbbtab = upsample->Cb_b_tab;
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JLONG *Crgtab = upsample->Cr_g_tab;
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JLONG *Cbgtab = upsample->Cb_g_tab;
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unsigned int r, g, b;
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JLONG rgb;
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SHIFT_TEMPS
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inptr0 = input_buf[0][in_row_group_ctr];
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inptr1 = input_buf[1][in_row_group_ctr];
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inptr2 = input_buf[2][in_row_group_ctr];
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outptr = output_buf[0];
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/* Loop for each pair of output pixels */
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for (col = cinfo->output_width >> 1; col > 0; col--) {
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/* Do the chroma part of the calculation */
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cb = GETJSAMPLE(*inptr1++);
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cr = GETJSAMPLE(*inptr2++);
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cred = Crrtab[cr];
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cgreen = (int)RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS);
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cblue = Cbbtab[cb];
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/* Fetch 2 Y values and emit 2 pixels */
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y = GETJSAMPLE(*inptr0++);
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r = range_limit[y + cred];
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g = range_limit[y + cgreen];
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b = range_limit[y + cblue];
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rgb = PACK_SHORT_565(r, g, b);
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y = GETJSAMPLE(*inptr0++);
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r = range_limit[y + cred];
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g = range_limit[y + cgreen];
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b = range_limit[y + cblue];
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rgb = PACK_TWO_PIXELS(rgb, PACK_SHORT_565(r, g, b));
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WRITE_TWO_PIXELS(outptr, rgb);
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outptr += 4;
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}
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/* If image width is odd, do the last output column separately */
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if (cinfo->output_width & 1) {
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cb = GETJSAMPLE(*inptr1);
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cr = GETJSAMPLE(*inptr2);
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cred = Crrtab[cr];
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cgreen = (int)RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS);
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cblue = Cbbtab[cb];
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y = GETJSAMPLE(*inptr0);
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r = range_limit[y + cred];
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g = range_limit[y + cgreen];
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b = range_limit[y + cblue];
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rgb = PACK_SHORT_565(r, g, b);
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*(INT16 *)outptr = (INT16)rgb;
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}
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}
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INLINE
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LOCAL(void)
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h2v1_merged_upsample_565D_internal(j_decompress_ptr cinfo,
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JSAMPIMAGE input_buf,
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JDIMENSION in_row_group_ctr,
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JSAMPARRAY output_buf)
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{
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my_upsample_ptr upsample = (my_upsample_ptr)cinfo->upsample;
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register int y, cred, cgreen, cblue;
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int cb, cr;
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register JSAMPROW outptr;
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JSAMPROW inptr0, inptr1, inptr2;
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JDIMENSION col;
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/* copy these pointers into registers if possible */
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register JSAMPLE *range_limit = cinfo->sample_range_limit;
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int *Crrtab = upsample->Cr_r_tab;
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int *Cbbtab = upsample->Cb_b_tab;
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JLONG *Crgtab = upsample->Cr_g_tab;
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JLONG *Cbgtab = upsample->Cb_g_tab;
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JLONG d0 = dither_matrix[cinfo->output_scanline & DITHER_MASK];
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unsigned int r, g, b;
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JLONG rgb;
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SHIFT_TEMPS
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inptr0 = input_buf[0][in_row_group_ctr];
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inptr1 = input_buf[1][in_row_group_ctr];
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inptr2 = input_buf[2][in_row_group_ctr];
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outptr = output_buf[0];
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/* Loop for each pair of output pixels */
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for (col = cinfo->output_width >> 1; col > 0; col--) {
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/* Do the chroma part of the calculation */
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cb = GETJSAMPLE(*inptr1++);
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cr = GETJSAMPLE(*inptr2++);
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cred = Crrtab[cr];
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cgreen = (int)RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS);
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cblue = Cbbtab[cb];
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/* Fetch 2 Y values and emit 2 pixels */
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y = GETJSAMPLE(*inptr0++);
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r = range_limit[DITHER_565_R(y + cred, d0)];
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g = range_limit[DITHER_565_G(y + cgreen, d0)];
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b = range_limit[DITHER_565_B(y + cblue, d0)];
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d0 = DITHER_ROTATE(d0);
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rgb = PACK_SHORT_565(r, g, b);
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y = GETJSAMPLE(*inptr0++);
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r = range_limit[DITHER_565_R(y + cred, d0)];
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g = range_limit[DITHER_565_G(y + cgreen, d0)];
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b = range_limit[DITHER_565_B(y + cblue, d0)];
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d0 = DITHER_ROTATE(d0);
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rgb = PACK_TWO_PIXELS(rgb, PACK_SHORT_565(r, g, b));
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WRITE_TWO_PIXELS(outptr, rgb);
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outptr += 4;
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}
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/* If image width is odd, do the last output column separately */
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if (cinfo->output_width & 1) {
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cb = GETJSAMPLE(*inptr1);
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cr = GETJSAMPLE(*inptr2);
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cred = Crrtab[cr];
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cgreen = (int)RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS);
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cblue = Cbbtab[cb];
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y = GETJSAMPLE(*inptr0);
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r = range_limit[DITHER_565_R(y + cred, d0)];
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g = range_limit[DITHER_565_G(y + cgreen, d0)];
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b = range_limit[DITHER_565_B(y + cblue, d0)];
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rgb = PACK_SHORT_565(r, g, b);
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*(INT16 *)outptr = (INT16)rgb;
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}
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}
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INLINE
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LOCAL(void)
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h2v2_merged_upsample_565_internal(j_decompress_ptr cinfo, JSAMPIMAGE input_buf,
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JDIMENSION in_row_group_ctr,
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JSAMPARRAY output_buf)
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{
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my_upsample_ptr upsample = (my_upsample_ptr)cinfo->upsample;
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register int y, cred, cgreen, cblue;
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int cb, cr;
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register JSAMPROW outptr0, outptr1;
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JSAMPROW inptr00, inptr01, inptr1, inptr2;
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JDIMENSION col;
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/* copy these pointers into registers if possible */
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register JSAMPLE *range_limit = cinfo->sample_range_limit;
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int *Crrtab = upsample->Cr_r_tab;
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int *Cbbtab = upsample->Cb_b_tab;
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JLONG *Crgtab = upsample->Cr_g_tab;
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JLONG *Cbgtab = upsample->Cb_g_tab;
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unsigned int r, g, b;
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JLONG rgb;
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SHIFT_TEMPS
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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];
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inptr1 = input_buf[1][in_row_group_ctr];
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inptr2 = input_buf[2][in_row_group_ctr];
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outptr0 = output_buf[0];
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outptr1 = output_buf[1];
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/* Loop for each group of output pixels */
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for (col = cinfo->output_width >> 1; col > 0; col--) {
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/* Do the chroma part of the calculation */
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cb = GETJSAMPLE(*inptr1++);
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cr = GETJSAMPLE(*inptr2++);
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cred = Crrtab[cr];
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cgreen = (int)RIGHT_SHIFT(Cbgtab[cb] + Crgtab[cr], SCALEBITS);
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cblue = Cbbtab[cb];
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/* Fetch 4 Y values and emit 4 pixels */
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y = GETJSAMPLE(*inptr00++);
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r = range_limit[y + cred];
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g = range_limit[y + cgreen];
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b = range_limit[y + cblue];
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rgb = PACK_SHORT_565(r, g, b);
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y = GETJSAMPLE(*inptr00++);
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r = range_limit[y + cred];
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g = range_limit[y + cgreen];
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b = range_limit[y + cblue];
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rgb = PACK_TWO_PIXELS(rgb, PACK_SHORT_565(r, g, b));
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WRITE_TWO_PIXELS(outptr0, rgb);
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outptr0 += 4;
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y = GETJSAMPLE(*inptr01++);
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r = range_limit[y + cred];
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g = range_limit[y + cgreen];
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b = range_limit[y + cblue];
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rgb = PACK_SHORT_565(r, g, b);
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y = GETJSAMPLE(*inptr01++);
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r = range_limit[y + cred];
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g = range_limit[y + cgreen];
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b = range_limit[y + cblue];
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rgb = PACK_TWO_PIXELS(rgb, PACK_SHORT_565(r, g, b));
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WRITE_TWO_PIXELS(outptr1, rgb);
|
|
outptr1 += 4;
|
|
}
|
|
|
|
/* 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);
|
|
r = range_limit[y + cred];
|
|
g = range_limit[y + cgreen];
|
|
b = range_limit[y + cblue];
|
|
rgb = PACK_SHORT_565(r, g, b);
|
|
*(INT16 *)outptr0 = (INT16)rgb;
|
|
|
|
y = GETJSAMPLE(*inptr01);
|
|
r = range_limit[y + cred];
|
|
g = range_limit[y + cgreen];
|
|
b = range_limit[y + cblue];
|
|
rgb = PACK_SHORT_565(r, g, b);
|
|
*(INT16 *)outptr1 = (INT16)rgb;
|
|
}
|
|
}
|
|
|
|
|
|
INLINE
|
|
LOCAL(void)
|
|
h2v2_merged_upsample_565D_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;
|
|
JLONG d0 = dither_matrix[cinfo->output_scanline & DITHER_MASK];
|
|
JLONG d1 = dither_matrix[(cinfo->output_scanline + 1) & DITHER_MASK];
|
|
unsigned int r, g, b;
|
|
JLONG rgb;
|
|
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++);
|
|
r = range_limit[DITHER_565_R(y + cred, d0)];
|
|
g = range_limit[DITHER_565_G(y + cgreen, d0)];
|
|
b = range_limit[DITHER_565_B(y + cblue, d0)];
|
|
d0 = DITHER_ROTATE(d0);
|
|
rgb = PACK_SHORT_565(r, g, b);
|
|
|
|
y = GETJSAMPLE(*inptr00++);
|
|
r = range_limit[DITHER_565_R(y + cred, d0)];
|
|
g = range_limit[DITHER_565_G(y + cgreen, d0)];
|
|
b = range_limit[DITHER_565_B(y + cblue, d0)];
|
|
d0 = DITHER_ROTATE(d0);
|
|
rgb = PACK_TWO_PIXELS(rgb, PACK_SHORT_565(r, g, b));
|
|
|
|
WRITE_TWO_PIXELS(outptr0, rgb);
|
|
outptr0 += 4;
|
|
|
|
y = GETJSAMPLE(*inptr01++);
|
|
r = range_limit[DITHER_565_R(y + cred, d1)];
|
|
g = range_limit[DITHER_565_G(y + cgreen, d1)];
|
|
b = range_limit[DITHER_565_B(y + cblue, d1)];
|
|
d1 = DITHER_ROTATE(d1);
|
|
rgb = PACK_SHORT_565(r, g, b);
|
|
|
|
y = GETJSAMPLE(*inptr01++);
|
|
r = range_limit[DITHER_565_R(y + cred, d1)];
|
|
g = range_limit[DITHER_565_G(y + cgreen, d1)];
|
|
b = range_limit[DITHER_565_B(y + cblue, d1)];
|
|
d1 = DITHER_ROTATE(d1);
|
|
rgb = PACK_TWO_PIXELS(rgb, PACK_SHORT_565(r, g, b));
|
|
|
|
WRITE_TWO_PIXELS(outptr1, rgb);
|
|
outptr1 += 4;
|
|
}
|
|
|
|
/* 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);
|
|
r = range_limit[DITHER_565_R(y + cred, d0)];
|
|
g = range_limit[DITHER_565_G(y + cgreen, d0)];
|
|
b = range_limit[DITHER_565_B(y + cblue, d0)];
|
|
rgb = PACK_SHORT_565(r, g, b);
|
|
*(INT16 *)outptr0 = (INT16)rgb;
|
|
|
|
y = GETJSAMPLE(*inptr01);
|
|
r = range_limit[DITHER_565_R(y + cred, d1)];
|
|
g = range_limit[DITHER_565_G(y + cgreen, d1)];
|
|
b = range_limit[DITHER_565_B(y + cblue, d1)];
|
|
rgb = PACK_SHORT_565(r, g, b);
|
|
*(INT16 *)outptr1 = (INT16)rgb;
|
|
}
|
|
}
|