1 files changed, 80 insertions, 0 deletions
diff --git a/libswscale/arm/rgb2yuv_neon_16.S b/libswscale/arm/rgb2yuv_neon_16.S
new file mode 100644
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+++ b/libswscale/arm/rgb2yuv_neon_16.S
@@ -0,0 +1,80 @@
+/*
+ * Copyright (C) 2013 Xiaolei Yu <dreifachstein@gmail.com>
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "rgb2yuv_neon_common.S"
+
+/* downsampled R16G16B16 x8 */
+alias_qw    r16x8,  q7
+alias_qw    g16x8,  q8
+alias_qw    b16x8,  q9
+
+alias   n16x16_l,   q11
+alias   n16x16_h,   q12
+
+alias   y16x16_l,   q13
+alias   y16x16_h,   q14
+
+alias_qw    y8x16,  q15
+
+.macro init     src
+    vld3.i32    {q13_l, q14_l, q15_l},          [\src]!
+    vld3.i32    {q13_h[0], q14_h[0], q15_h[0]}, [\src]
+    vrshrn.i32  CO_R,   q13, #7
+    vrshrn.i32  CO_G,   q14, #7
+    vrshrn.i32  CO_B,   q15, #7
+
+    vmov.u8     BIAS_Y, #16
+    vmov.u8     BIAS_U, #128
+.endm
+
+
+.macro compute_y_16x1_step  action, s8x16, coeff
+    vmovl.u8    n16x16_l,   \s8x16\()_l
+    vmovl.u8    n16x16_h,   \s8x16\()_h
+
+    \action     y16x16_l,   n16x16_l,   \coeff
+    \action     y16x16_h,   n16x16_h,   \coeff
+.endm
+
+.macro compute_y_16x1
+    compute_y_16x1_step vmul, r8x16, CO_RY
+    compute_y_16x1_step vmla, g8x16, CO_GY
+    compute_y_16x1_step vmla, b8x16, CO_BY
+
+    vrshrn.i16  y8x16_l,    y16x16_l,   #8
+    vrshrn.i16  y8x16_h,    y16x16_h,   #8
+
+    vadd.u8     y8x16,      y8x16,      BIAS_Y
+.endm
+
+alias   c16x8,      q15
+alias_qw    c8x8x2, q10
+
+
+.macro compute_chroma_8x1   c, C
+    vmul    c16x8,  r16x8,  CO_R\C
+    vmla    c16x8,  g16x8,  CO_G\C
+    vmla    c16x8,  b16x8,  CO_B\C
+
+    vrshrn.i16  \c\()8x8,   c16x8,      #8
+    vadd.u8     \c\()8x8,   \c\()8x8,   BIAS_\C
+.endm
+
+    loop_420sp  rgbx, nv12, init, kernel_420_16x2, 16