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Diffstat (limited to 'mesalib/src/gallium/auxiliary/util/u_sse.h')
| -rw-r--r-- | mesalib/src/gallium/auxiliary/util/u_sse.h | 255 |
1 files changed, 255 insertions, 0 deletions
diff --git a/mesalib/src/gallium/auxiliary/util/u_sse.h b/mesalib/src/gallium/auxiliary/util/u_sse.h new file mode 100644 index 000000000..d000c0fd7 --- /dev/null +++ b/mesalib/src/gallium/auxiliary/util/u_sse.h @@ -0,0 +1,255 @@ +/**************************************************************************
+ *
+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+/**
+ * @file
+ * SSE intrinsics portability header.
+ *
+ * Although the SSE intrinsics are support by all modern x86 and x86-64
+ * compilers, there are some intrisincs missing in some implementations
+ * (especially older MSVC versions). This header abstracts that away.
+ */
+
+#ifndef U_SSE_H_
+#define U_SSE_H_
+
+#include "pipe/p_config.h"
+
+#if defined(PIPE_ARCH_SSE)
+
+#include <emmintrin.h>
+
+
+/* MSVC before VC8 does not support the _mm_castxxx_yyy */
+#if defined(_MSC_VER) && _MSC_VER < 1500
+
+union __declspec(align(16)) m128_types {
+ __m128 m128;
+ __m128i m128i;
+ __m128d m128d;
+};
+
+static __inline __m128
+_mm_castsi128_ps(__m128i a)
+{
+ union m128_types u;
+ u.m128i = a;
+ return u.m128;
+}
+
+static __inline __m128i
+_mm_castps_si128(__m128 a)
+{
+ union m128_types u;
+ u.m128 = a;
+ return u.m128i;
+}
+
+#endif /* defined(_MSC_VER) && _MSC_VER < 1500 */
+
+union m128i {
+ __m128i m;
+ ubyte ub[16];
+ ushort us[8];
+ uint ui[4];
+};
+
+static INLINE void u_print_epi8(const char *name, __m128i r)
+{
+ union { __m128i m; ubyte ub[16]; } u;
+ u.m = r;
+
+ debug_printf("%s: "
+ "%02x/"
+ "%02x/"
+ "%02x/"
+ "%02x/"
+ "%02x/"
+ "%02x/"
+ "%02x/"
+ "%02x/"
+ "%02x/"
+ "%02x/"
+ "%02x/"
+ "%02x/"
+ "%02x/"
+ "%02x/"
+ "%02x/"
+ "%02x\n",
+ name,
+ u.ub[0], u.ub[1], u.ub[2], u.ub[3],
+ u.ub[4], u.ub[5], u.ub[6], u.ub[7],
+ u.ub[8], u.ub[9], u.ub[10], u.ub[11],
+ u.ub[12], u.ub[13], u.ub[14], u.ub[15]);
+}
+
+static INLINE void u_print_epi16(const char *name, __m128i r)
+{
+ union { __m128i m; ushort us[8]; } u;
+ u.m = r;
+
+ debug_printf("%s: "
+ "%04x/"
+ "%04x/"
+ "%04x/"
+ "%04x/"
+ "%04x/"
+ "%04x/"
+ "%04x/"
+ "%04x\n",
+ name,
+ u.us[0], u.us[1], u.us[2], u.us[3],
+ u.us[4], u.us[5], u.us[6], u.us[7]);
+}
+
+static INLINE void u_print_epi32(const char *name, __m128i r)
+{
+ union { __m128i m; uint ui[4]; } u;
+ u.m = r;
+
+ debug_printf("%s: "
+ "%08x/"
+ "%08x/"
+ "%08x/"
+ "%08x\n",
+ name,
+ u.ui[0], u.ui[1], u.ui[2], u.ui[3]);
+}
+
+static INLINE void u_print_ps(const char *name, __m128 r)
+{
+ union { __m128 m; float f[4]; } u;
+ u.m = r;
+
+ debug_printf("%s: "
+ "%f/"
+ "%f/"
+ "%f/"
+ "%f\n",
+ name,
+ u.f[0], u.f[1], u.f[2], u.f[3]);
+}
+
+
+#define U_DUMP_EPI32(a) u_print_epi32(#a, a)
+#define U_DUMP_EPI16(a) u_print_epi16(#a, a)
+#define U_DUMP_EPI8(a) u_print_epi8(#a, a)
+#define U_DUMP_PS(a) u_print_ps(#a, a)
+
+
+
+#if defined(PIPE_ARCH_SSSE3)
+
+#include <tmmintrin.h>
+
+#else /* !PIPE_ARCH_SSSE3 */
+
+/**
+ * Describe _mm_shuffle_epi8() with gcc extended inline assembly, for cases
+ * where -mssse3 is not supported/enabled.
+ *
+ * MSVC will never get in here as its intrinsics support do not rely on
+ * compiler command line options.
+ */
+static __inline __m128i __attribute__((__gnu_inline__, __always_inline__, __artificial__))
+_mm_shuffle_epi8(__m128i a, __m128i mask)
+{
+ __m128i result;
+ __asm__("pshufb %1, %0"
+ : "=x" (result)
+ : "xm" (mask), "0" (a));
+ return result;
+}
+
+#endif /* !PIPE_ARCH_SSSE3 */
+
+
+
+
+/* Provide an SSE2 implementation of _mm_mullo_epi32() in terms of
+ * _mm_mul_epu32().
+ *
+ * I suspect this works fine for us because one of our operands is
+ * always positive, but not sure that this can be used for general
+ * signed integer multiplication.
+ *
+ * This seems close enough to the speed of SSE4 and the real
+ * _mm_mullo_epi32() intrinsic as to not justify adding an sse4
+ * dependency at this point.
+ */
+static INLINE __m128i mm_mullo_epi32(const __m128i a, const __m128i b)
+{
+ __m128i a4 = _mm_srli_epi64(a, 32); /* shift by one dword */
+ __m128i b4 = _mm_srli_epi64(b, 32); /* shift by one dword */
+ __m128i ba = _mm_mul_epu32(b, a); /* multply dwords 0, 2 */
+ __m128i b4a4 = _mm_mul_epu32(b4, a4); /* multiply dwords 1, 3 */
+
+ /* Interleave the results, either with shuffles or (slightly
+ * faster) direct bit operations:
+ */
+#if 0
+ __m128i ba8 = _mm_shuffle_epi32(ba, 8);
+ __m128i b4a48 = _mm_shuffle_epi32(b4a4, 8);
+ __m128i result = _mm_unpacklo_epi32(ba8, b4a48);
+#else
+ __m128i mask = _mm_setr_epi32(~0,0,~0,0);
+ __m128i ba_mask = _mm_and_si128(ba, mask);
+ __m128i b4a4_mask_shift = _mm_slli_epi64(b4a4, 32);
+ __m128i result = _mm_or_si128(ba_mask, b4a4_mask_shift);
+#endif
+
+ return result;
+}
+
+
+static INLINE void
+transpose4_epi32(const __m128i * restrict a,
+ const __m128i * restrict b,
+ const __m128i * restrict c,
+ const __m128i * restrict d,
+ __m128i * restrict o,
+ __m128i * restrict p,
+ __m128i * restrict q,
+ __m128i * restrict r)
+{
+ __m128i t0 = _mm_unpacklo_epi32(*a, *b);
+ __m128i t1 = _mm_unpacklo_epi32(*c, *d);
+ __m128i t2 = _mm_unpackhi_epi32(*a, *b);
+ __m128i t3 = _mm_unpackhi_epi32(*c, *d);
+
+ *o = _mm_unpacklo_epi64(t0, t1);
+ *p = _mm_unpackhi_epi64(t0, t1);
+ *q = _mm_unpacklo_epi64(t2, t3);
+ *r = _mm_unpackhi_epi64(t2, t3);
+}
+
+#define SCALAR_EPI32(m, i) _mm_shuffle_epi32((m), _MM_SHUFFLE(i,i,i,i))
+
+
+#endif /* PIPE_ARCH_SSE */
+
+#endif /* U_SSE_H_ */
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