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https://github.com/hrydgard/ppsspp.git
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66 lines
1.7 KiB
C
66 lines
1.7 KiB
C
// CrossSIMD
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//
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// Compatibility wrappers for SIMD dialects.
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//
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// In the long run, might do a more general single-source-SIMD wrapper here consisting
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// of defines that translate to either NEON or SSE. It would be possible to write quite a lot of
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// our various color conversion functions and so on in a pretty generic manner.
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#include "ppsspp_config.h"
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#include "stdint.h"
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#ifdef __clang__
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// Weird how you can't just use #pragma in a macro.
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#define DO_NOT_VECTORIZE_LOOP _Pragma("clang loop vectorize(disable)")
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#else
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#define DO_NOT_VECTORIZE_LOOP
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#endif
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#if PPSSPP_ARCH(SSE2)
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#include <emmintrin.h>
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#endif
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#if PPSSPP_ARCH(ARM_NEON)
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#if defined(_MSC_VER) && PPSSPP_ARCH(ARM64)
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#include <arm64_neon.h>
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#else
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#include <arm_neon.h>
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#endif
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#endif
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// Basic types
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#if PPSSPP_ARCH(ARM64_NEON)
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// No special ones here.
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#elif PPSSPP_ARCH(ARM_NEON)
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// Compatibility wrappers making ARM64 NEON code run on ARM32
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// With optimization on, these should compile down to the optimal code.
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inline float32x4_t vmulq_laneq_f32(float32x4_t a, float32x4_t b, int lane) {
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switch (lane & 3) {
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case 0: return vmulq_lane_f32(a, vget_low_f32(b), 0);
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case 1: return vmulq_lane_f32(a, vget_low_f32(b), 1);
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case 2: return vmulq_lane_f32(a, vget_high_f32(b), 0);
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default: return vmulq_lane_f32(a, vget_high_f32(b), 1);
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}
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}
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inline float32x4_t vmlaq_laneq_f32(float32x4_t a, float32x4_t b, float32x4_t c, int lane) {
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switch (lane & 3) {
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case 0: return vmlaq_lane_f32(a, b, vget_low_f32(c), 0);
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case 1: return vmlaq_lane_f32(a, b, vget_low_f32(c), 1);
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case 2: return vmlaq_lane_f32(a, b, vget_high_f32(c), 0);
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default: return vmlaq_lane_f32(a, b, vget_high_f32(c), 1);
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}
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}
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inline uint32x4_t vcgezq_f32(float32x4_t v) {
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return vcgeq_f32(v, vdupq_n_f32(0.0f));
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}
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#endif
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