Adding upstream version 110.0.1.upstream/110.0.1upstream

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

1 files changed, 98 insertions, 0 deletions

diff --git a/media/libjpeg/simd/mips64/jcsample-mmi.c b/media/libjpeg/simd/mips64/jcsample-mmi.c
new file mode 100644
index 0000000000..0354dac087
--- /dev/null
+++ b/media/libjpeg/simd/mips64/jcsample-mmi.c
@@ -0,0 +1,98 @@
+/*
+ * Loongson MMI optimizations for libjpeg-turbo
+ *
+ * Copyright (C) 2015, 2018-2019, D. R. Commander.  All Rights Reserved.
+ * 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>
+ *
+ * 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.
+ */
+
+/* CHROMA DOWNSAMPLING */
+
+#include "jsimd_mmi.h"
+#include "jcsample.h"
+
+
+void jsimd_h2v2_downsample_mmi(JDIMENSION image_width, int max_v_samp_factor,
+                               JDIMENSION v_samp_factor,
+                               JDIMENSION width_in_blocks,
+                               JSAMPARRAY input_data, JSAMPARRAY output_data)
+{
+  int inrow, outrow, outcol;
+  JDIMENSION output_cols = width_in_blocks * DCTSIZE;
+  JSAMPROW inptr0, inptr1, outptr;
+  __m64 bias, mask = 0.0, thisavg, nextavg, avg;
+  __m64 this0o, this0e, this0, this0sum, next0o, next0e, next0, next0sum;
+  __m64 this1o, this1e, this1, this1sum, next1o, next1e, next1, next1sum;
+
+  expand_right_edge(input_data, max_v_samp_factor, image_width,
+                    output_cols * 2);
+
+  bias = _mm_set1_pi32((1 << 17) + 1);   /* 0x00020001 (32-bit bias pattern) */
+                                         /* bias={1, 2, 1, 2} (16-bit) */
+  mask = _mm_cmpeq_pi16(mask, mask);
+  mask = _mm_srli_pi16(mask, BYTE_BIT);  /* {0xFF 0x00 0xFF 0x00 ..} */
+
+  for (inrow = 0, outrow = 0; outrow < v_samp_factor;
+       inrow += 2, outrow++) {
+
+    inptr0 = input_data[inrow];
+    inptr1 = input_data[inrow + 1];
+    outptr = output_data[outrow];
+
+    for (outcol = output_cols; outcol > 0;
+         outcol -= 8, inptr0 += 16, inptr1 += 16, outptr += 8) {
+
+      this0 = _mm_load_si64((__m64 *)&inptr0[0]);
+      this1 = _mm_load_si64((__m64 *)&inptr1[0]);
+      next0 = _mm_load_si64((__m64 *)&inptr0[8]);
+      next1 = _mm_load_si64((__m64 *)&inptr1[8]);
+
+      this0o = _mm_and_si64(this0, mask);
+      this0e = _mm_srli_pi16(this0, BYTE_BIT);
+      this1o = _mm_and_si64(this1, mask);
+      this1e = _mm_srli_pi16(this1, BYTE_BIT);
+      this0sum = _mm_add_pi16(this0o, this0e);
+      this1sum = _mm_add_pi16(this1o, this1e);
+
+      next0o = _mm_and_si64(next0, mask);
+      next0e = _mm_srli_pi16(next0, BYTE_BIT);
+      next1o = _mm_and_si64(next1, mask);
+      next1e = _mm_srli_pi16(next1, BYTE_BIT);
+      next0sum = _mm_add_pi16(next0o, next0e);
+      next1sum = _mm_add_pi16(next1o, next1e);
+
+      thisavg = _mm_add_pi16(this0sum, this1sum);
+      nextavg = _mm_add_pi16(next0sum, next1sum);
+      thisavg = _mm_add_pi16(thisavg, bias);
+      nextavg = _mm_add_pi16(nextavg, bias);
+      thisavg = _mm_srli_pi16(thisavg, 2);
+      nextavg = _mm_srli_pi16(nextavg, 2);
+
+      avg = _mm_packs_pu16(thisavg, nextavg);
+
+      _mm_store_si64((__m64 *)&outptr[0], avg);
+    }
+  }
+}