Adding upstream version 110.0.1.upstream/110.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 124 insertions, 0 deletions

diff --git a/media/libjpeg/simd/mips64/jquanti-mmi.c b/media/libjpeg/simd/mips64/jquanti-mmi.c
new file mode 100644
index 0000000000..339002fd80
--- /dev/null
+++ b/media/libjpeg/simd/mips64/jquanti-mmi.c
@@ -0,0 +1,124 @@
+/*
+ * Loongson MMI optimizations for libjpeg-turbo
+ *
+ * Copyright (C) 2016-2017, Loongson Technology Corporation Limited, BeiJing.
+ *                          All Rights Reserved.
+ * Authors:  ZhuChen     <zhuchen@loongson.cn>
+ *           CaiWanwei   <caiwanwei@loongson.cn>
+ *           SunZhangzhi <sunzhangzhi-cq@loongson.cn>
+ * Copyright (C) 2018-2019, D. R. Commander.  All Rights Reserved.
+ *
+ * Based on the x86 SIMD extension for IJG JPEG library
+ * Copyright (C) 1999-2006, MIYASAKA Masaru.
+ *
+ * This software is provided 'as-is', without any express or implied
+ * warranty.  In no event will the authors be held liable for any damages
+ * arising from the use of this software.
+ *
+ * Permission is granted to anyone to use this software for any purpose,
+ * including commercial applications, and to alter it and redistribute it
+ * freely, subject to the following restrictions:
+ *
+ * 1. The origin of this software must not be misrepresented; you must not
+ *    claim that you wrote the original software. If you use this software
+ *    in a product, an acknowledgment in the product documentation would be
+ *    appreciated but is not required.
+ * 2. Altered source versions must be plainly marked as such, and must not be
+ *    misrepresented as being the original software.
+ * 3. This notice may not be removed or altered from any source distribution.
+ */
+
+/* INTEGER QUANTIZATION AND SAMPLE CONVERSION */
+
+#include "jsimd_mmi.h"
+
+
+#define DO_QUANT() { \
+  __m64 rowl, rowh, rowls, rowhs, rowlsave, rowhsave; \
+  __m64 corrl, corrh, recipl, reciph, scalel, scaleh; \
+  \
+  rowl = _mm_load_si64((__m64 *)&workspace[0]); \
+  rowh = _mm_load_si64((__m64 *)&workspace[4]); \
+  \
+  /* Branch-less absolute value */ \
+  rowls = _mm_srai_pi16(rowl, (WORD_BIT - 1));  /* -1 if value < 0, */ \
+                                                /* 0 otherwise */ \
+  rowhs = _mm_srai_pi16(rowh, (WORD_BIT - 1)); \
+  \
+  rowl = _mm_xor_si64(rowl, rowls);           /* val = -val */ \
+  rowh = _mm_xor_si64(rowh, rowhs); \
+  rowl = _mm_sub_pi16(rowl, rowls); \
+  rowh = _mm_sub_pi16(rowh, rowhs); \
+  \
+  corrl = _mm_load_si64((__m64 *)&divisors[DCTSIZE2 * 1]);  /* correction */ \
+  corrh = _mm_load_si64((__m64 *)&divisors[DCTSIZE2 * 1 + 4]); \
+  \
+  rowlsave = rowl = _mm_add_pi16(rowl, corrl);  /* correction + roundfactor */ \
+  rowhsave = rowh = _mm_add_pi16(rowh, corrh); \
+  \
+  recipl = _mm_load_si64((__m64 *)&divisors[DCTSIZE2 * 0]);  /* reciprocal */ \
+  reciph = _mm_load_si64((__m64 *)&divisors[DCTSIZE2 * 0 + 4]); \
+  \
+  rowl = _mm_mulhi_pi16(rowl, recipl); \
+  rowh = _mm_mulhi_pi16(rowh, reciph); \
+  \
+  /* reciprocal is always negative (MSB=1), so we always need to add the */ \
+  /* initial value (input value is never negative as we inverted it at the */ \
+  /* start of this routine) */ \
+  rowlsave = rowl = _mm_add_pi16(rowl, rowlsave); \
+  rowhsave = rowh = _mm_add_pi16(rowh, rowhsave); \
+  \
+  scalel = _mm_load_si64((__m64 *)&divisors[DCTSIZE2 * 2]);  /* scale */ \
+  scaleh = _mm_load_si64((__m64 *)&divisors[DCTSIZE2 * 2 + 4]); \
+  \
+  rowl = _mm_mulhi_pi16(rowl, scalel); \
+  rowh = _mm_mulhi_pi16(rowh, scaleh); \
+  \
+  /* determine if scale is negative */ \
+  scalel = _mm_srai_pi16(scalel, (WORD_BIT - 1)); \
+  scaleh = _mm_srai_pi16(scaleh, (WORD_BIT - 1)); \
+  \
+  /* and add input if it is */ \
+  scalel = _mm_and_si64(scalel, rowlsave); \
+  scaleh = _mm_and_si64(scaleh, rowhsave); \
+  rowl = _mm_add_pi16(rowl, scalel); \
+  rowh = _mm_add_pi16(rowh, scaleh); \
+  \
+  /* then check if negative input */ \
+  rowlsave = _mm_srai_pi16(rowlsave, (WORD_BIT - 1)); \
+  rowhsave = _mm_srai_pi16(rowhsave, (WORD_BIT - 1)); \
+  \
+  /* and add scale if it is */ \
+  rowlsave = _mm_and_si64(rowlsave, scalel); \
+  rowhsave = _mm_and_si64(rowhsave, scaleh); \
+  rowl = _mm_add_pi16(rowl, rowlsave); \
+  rowh = _mm_add_pi16(rowh, rowhsave); \
+  \
+  rowl = _mm_xor_si64(rowl, rowls);           /* val = -val */ \
+  rowh = _mm_xor_si64(rowh, rowhs); \
+  rowl = _mm_sub_pi16(rowl, rowls); \
+  rowh = _mm_sub_pi16(rowh, rowhs); \
+  \
+  _mm_store_si64((__m64 *)&output_ptr[0], rowl); \
+  _mm_store_si64((__m64 *)&output_ptr[4], rowh); \
+  \
+  workspace += DCTSIZE; \
+  divisors += DCTSIZE; \
+  output_ptr += DCTSIZE; \
+}
+
+
+void jsimd_quantize_mmi(JCOEFPTR coef_block, DCTELEM *divisors,
+                        DCTELEM *workspace)
+{
+  JCOEFPTR output_ptr = coef_block;
+
+  DO_QUANT()
+  DO_QUANT()
+  DO_QUANT()
+  DO_QUANT()
+  DO_QUANT()
+  DO_QUANT()
+  DO_QUANT()
+  DO_QUANT()
+}