Adding upstream version 86.0.1.upstream/86.0.1upstream

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

1 files changed, 100 insertions, 0 deletions

diff --git a/media/libjpeg/simd/loongson/jcsample-mmi.c b/media/libjpeg/simd/loongson/jcsample-mmi.c
new file mode 100644
index 0000000000..2f2d85196c
--- /dev/null
+++ b/media/libjpeg/simd/loongson/jcsample-mmi.c
@@ -0,0 +1,100 @@
+/*
+ * Loongson MMI optimizations for libjpeg-turbo
+ *
+ * Copyright (C) 2015, 2018, 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, bias;
+  JDIMENSION output_cols = width_in_blocks * DCTSIZE;
+  JSAMPROW inptr0, inptr1, outptr;
+  __m64 mm0, mm1, mm2, mm3, mm4, mm5, mm6 = 0.0, mm7;
+
+  expand_right_edge(input_data, max_v_samp_factor, image_width,
+                    output_cols * 2);
+
+  bias = (1 << 17) + 1;                      /* 0x00020001 (bias pattern) */
+  mm7 = _mm_set1_pi32(bias);                 /* mm7={1, 2, 1, 2} */
+  mm6 = _mm_cmpeq_pi16(mm6, mm6);
+  mm6 = _mm_srli_pi16(mm6, BYTE_BIT);        /* mm6={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) {
+
+      mm0 = _mm_load_si64((__m64 *)&inptr0[0]);
+      mm1 = _mm_load_si64((__m64 *)&inptr1[0]);
+      mm2 = _mm_load_si64((__m64 *)&inptr0[8]);
+      mm3 = _mm_load_si64((__m64 *)&inptr1[8]);
+
+      mm4 = mm0;
+      mm5 = mm1;
+      mm0 = _mm_and_si64(mm0, mm6);
+      mm4 = _mm_srli_pi16(mm4, BYTE_BIT);
+      mm1 = _mm_and_si64(mm1, mm6);
+      mm5 = _mm_srli_pi16(mm5, BYTE_BIT);
+      mm0 = _mm_add_pi16(mm0, mm4);
+      mm1 = _mm_add_pi16(mm1, mm5);
+
+      mm4 = mm2;
+      mm5 = mm3;
+      mm2 = _mm_and_si64(mm2, mm6);
+      mm4 = _mm_srli_pi16(mm4, BYTE_BIT);
+      mm3 = _mm_and_si64(mm3, mm6);
+      mm5 = _mm_srli_pi16(mm5, BYTE_BIT);
+      mm2 = _mm_add_pi16(mm2, mm4);
+      mm3 = _mm_add_pi16(mm3, mm5);
+
+      mm0 = _mm_add_pi16(mm0, mm1);
+      mm2 = _mm_add_pi16(mm2, mm3);
+      mm0 = _mm_add_pi16(mm0, mm7);
+      mm2 = _mm_add_pi16(mm2, mm7);
+      mm0 = _mm_srli_pi16(mm0, 2);
+      mm2 = _mm_srli_pi16(mm2, 2);
+
+      mm0 = _mm_packs_pu16(mm0, mm2);
+
+      _mm_store_si64((__m64 *)&outptr[0], mm0);
+    }
+  }
+}