diff options
Diffstat (limited to 'external/include/glm/simd/common.h')
| -rw-r--r-- | external/include/glm/simd/common.h | 240 |
1 files changed, 240 insertions, 0 deletions
diff --git a/external/include/glm/simd/common.h b/external/include/glm/simd/common.h new file mode 100644 index 0000000..d8c212d --- /dev/null +++ b/external/include/glm/simd/common.h @@ -0,0 +1,240 @@ +/// @ref simd +/// @file glm/simd/common.h + +#pragma once + +#include "platform.h" + +#if GLM_ARCH & GLM_ARCH_SSE2_BIT + +GLM_FUNC_QUALIFIER glm_vec4 glm_vec4_add(glm_vec4 a, glm_vec4 b) +{ + return _mm_add_ps(a, b); +} + +GLM_FUNC_QUALIFIER glm_vec4 glm_vec1_add(glm_vec4 a, glm_vec4 b) +{ + return _mm_add_ss(a, b); +} + +GLM_FUNC_QUALIFIER glm_vec4 glm_vec4_sub(glm_vec4 a, glm_vec4 b) +{ + return _mm_sub_ps(a, b); +} + +GLM_FUNC_QUALIFIER glm_vec4 glm_vec1_sub(glm_vec4 a, glm_vec4 b) +{ + return _mm_sub_ss(a, b); +} + +GLM_FUNC_QUALIFIER glm_vec4 glm_vec4_mul(glm_vec4 a, glm_vec4 b) +{ + return _mm_mul_ps(a, b); +} + +GLM_FUNC_QUALIFIER glm_vec4 glm_vec1_mul(glm_vec4 a, glm_vec4 b) +{ + return _mm_mul_ss(a, b); +} + +GLM_FUNC_QUALIFIER glm_vec4 glm_vec4_div(glm_vec4 a, glm_vec4 b) +{ + return _mm_div_ps(a, b); +} + +GLM_FUNC_QUALIFIER glm_vec4 glm_vec1_div(glm_vec4 a, glm_vec4 b) +{ + return _mm_div_ss(a, b); +} + +GLM_FUNC_QUALIFIER glm_vec4 glm_vec4_div_lowp(glm_vec4 a, glm_vec4 b) +{ + return glm_vec4_mul(a, _mm_rcp_ps(b)); +} + +GLM_FUNC_QUALIFIER glm_vec4 glm_vec4_swizzle_xyzw(glm_vec4 a) +{ +# if GLM_ARCH & GLM_ARCH_AVX2_BIT + return _mm_permute_ps(a, _MM_SHUFFLE(3, 2, 1, 0)); +# else + return _mm_shuffle_ps(a, a, _MM_SHUFFLE(3, 2, 1, 0)); +# endif +} + +GLM_FUNC_QUALIFIER glm_vec4 glm_vec1_fma(glm_vec4 a, glm_vec4 b, glm_vec4 c) +{ +# if GLM_ARCH & GLM_ARCH_AVX2_BIT + return _mm_fmadd_ss(a, b, c); +# else + return _mm_add_ss(_mm_mul_ss(a, b), c); +# endif +} + +GLM_FUNC_QUALIFIER glm_vec4 glm_vec4_fma(glm_vec4 a, glm_vec4 b, glm_vec4 c) +{ +# if GLM_ARCH & GLM_ARCH_AVX2_BIT + return _mm_fmadd_ps(a, b, c); +# else + return glm_vec4_add(glm_vec4_mul(a, b), c); +# endif +} + +GLM_FUNC_QUALIFIER glm_vec4 glm_vec4_abs(glm_vec4 x) +{ + return _mm_and_ps(x, _mm_castsi128_ps(_mm_set1_epi32(0x7FFFFFFF))); +} + +GLM_FUNC_QUALIFIER glm_ivec4 glm_ivec4_abs(glm_ivec4 x) +{ +# if GLM_ARCH & GLM_ARCH_SSSE3_BIT + return _mm_sign_epi32(x, x); +# else + glm_ivec4 const sgn0 = _mm_srai_epi32(x, 31); + glm_ivec4 const inv0 = _mm_xor_si128(x, sgn0); + glm_ivec4 const sub0 = _mm_sub_epi32(inv0, sgn0); + return sub0; +# endif +} + +GLM_FUNC_QUALIFIER glm_vec4 glm_vec4_sign(glm_vec4 x) +{ + glm_vec4 const zro0 = _mm_setzero_ps(); + glm_vec4 const cmp0 = _mm_cmplt_ps(x, zro0); + glm_vec4 const cmp1 = _mm_cmpgt_ps(x, zro0); + glm_vec4 const and0 = _mm_and_ps(cmp0, _mm_set1_ps(-1.0f)); + glm_vec4 const and1 = _mm_and_ps(cmp1, _mm_set1_ps(1.0f)); + glm_vec4 const or0 = _mm_or_ps(and0, and1);; + return or0; +} + +GLM_FUNC_QUALIFIER glm_vec4 glm_vec4_round(glm_vec4 x) +{ +# if GLM_ARCH & GLM_ARCH_SSE41_BIT + return _mm_round_ps(x, _MM_FROUND_TO_NEAREST_INT); +# else + glm_vec4 const sgn0 = _mm_castsi128_ps(_mm_set1_epi32(0x80000000)); + glm_vec4 const and0 = _mm_and_ps(sgn0, x); + glm_vec4 const or0 = _mm_or_ps(and0, _mm_set_ps1(8388608.0f)); + glm_vec4 const add0 = glm_vec4_add(x, or0); + glm_vec4 const sub0 = glm_vec4_sub(add0, or0); + return sub0; +# endif +} + +GLM_FUNC_QUALIFIER glm_vec4 glm_vec4_floor(glm_vec4 x) +{ +# if GLM_ARCH & GLM_ARCH_SSE41_BIT + return _mm_floor_ps(x); +# else + glm_vec4 const rnd0 = glm_vec4_round(x); + glm_vec4 const cmp0 = _mm_cmplt_ps(x, rnd0); + glm_vec4 const and0 = _mm_and_ps(cmp0, _mm_set1_ps(1.0f)); + glm_vec4 const sub0 = glm_vec4_sub(rnd0, and0); + return sub0; +# endif +} + +/* trunc TODO +GLM_FUNC_QUALIFIER glm_vec4 glm_vec4_trunc(glm_vec4 x) +{ + return glm_vec4(); +} +*/ + +//roundEven +GLM_FUNC_QUALIFIER glm_vec4 glm_vec4_roundEven(glm_vec4 x) +{ + glm_vec4 const sgn0 = _mm_castsi128_ps(_mm_set1_epi32(0x80000000)); + glm_vec4 const and0 = _mm_and_ps(sgn0, x); + glm_vec4 const or0 = _mm_or_ps(and0, _mm_set_ps1(8388608.0f)); + glm_vec4 const add0 = glm_vec4_add(x, or0); + glm_vec4 const sub0 = glm_vec4_sub(add0, or0); + return sub0; +} + +GLM_FUNC_QUALIFIER glm_vec4 glm_vec4_ceil(glm_vec4 x) +{ +# if GLM_ARCH & GLM_ARCH_SSE41_BIT + return _mm_ceil_ps(x); +# else + glm_vec4 const rnd0 = glm_vec4_round(x); + glm_vec4 const cmp0 = _mm_cmpgt_ps(x, rnd0); + glm_vec4 const and0 = _mm_and_ps(cmp0, _mm_set1_ps(1.0f)); + glm_vec4 const add0 = glm_vec4_add(rnd0, and0); + return add0; +# endif +} + +GLM_FUNC_QUALIFIER glm_vec4 glm_vec4_fract(glm_vec4 x) +{ + glm_vec4 const flr0 = glm_vec4_floor(x); + glm_vec4 const sub0 = glm_vec4_sub(x, flr0); + return sub0; +} + +GLM_FUNC_QUALIFIER glm_vec4 glm_vec4_mod(glm_vec4 x, glm_vec4 y) +{ + glm_vec4 const div0 = glm_vec4_div(x, y); + glm_vec4 const flr0 = glm_vec4_floor(div0); + glm_vec4 const mul0 = glm_vec4_mul(y, flr0); + glm_vec4 const sub0 = glm_vec4_sub(x, mul0); + return sub0; +} + +GLM_FUNC_QUALIFIER glm_vec4 glm_vec4_clamp(glm_vec4 v, glm_vec4 minVal, glm_vec4 maxVal) +{ + glm_vec4 const min0 = _mm_min_ps(v, maxVal); + glm_vec4 const max0 = _mm_max_ps(min0, minVal); + return max0; +} + +GLM_FUNC_QUALIFIER glm_vec4 glm_vec4_mix(glm_vec4 v1, glm_vec4 v2, glm_vec4 a) +{ + glm_vec4 const sub0 = glm_vec4_sub(_mm_set1_ps(1.0f), a); + glm_vec4 const mul0 = glm_vec4_mul(v1, sub0); + glm_vec4 const mad0 = glm_vec4_fma(v2, a, mul0); + return mad0; +} + +GLM_FUNC_QUALIFIER glm_vec4 glm_vec4_step(glm_vec4 edge, glm_vec4 x) +{ + glm_vec4 const cmp = _mm_cmple_ps(x, edge); + return _mm_movemask_ps(cmp) == 0 ? _mm_set1_ps(1.0f) : _mm_setzero_ps(); +} + +GLM_FUNC_QUALIFIER glm_vec4 glm_vec4_smoothstep(glm_vec4 edge0, glm_vec4 edge1, glm_vec4 x) +{ + glm_vec4 const sub0 = glm_vec4_sub(x, edge0); + glm_vec4 const sub1 = glm_vec4_sub(edge1, edge0); + glm_vec4 const div0 = glm_vec4_sub(sub0, sub1); + glm_vec4 const clp0 = glm_vec4_clamp(div0, _mm_setzero_ps(), _mm_set1_ps(1.0f)); + glm_vec4 const mul0 = glm_vec4_mul(_mm_set1_ps(2.0f), clp0); + glm_vec4 const sub2 = glm_vec4_sub(_mm_set1_ps(3.0f), mul0); + glm_vec4 const mul1 = glm_vec4_mul(clp0, clp0); + glm_vec4 const mul2 = glm_vec4_mul(mul1, sub2); + return mul2; +} + +// Agner Fog method +GLM_FUNC_QUALIFIER glm_vec4 glm_vec4_nan(glm_vec4 x) +{ + glm_ivec4 const t1 = _mm_castps_si128(x); // reinterpret as 32-bit integer + glm_ivec4 const t2 = _mm_sll_epi32(t1, _mm_cvtsi32_si128(1)); // shift out sign bit + glm_ivec4 const t3 = _mm_set1_epi32(0xFF000000); // exponent mask + glm_ivec4 const t4 = _mm_and_si128(t2, t3); // exponent + glm_ivec4 const t5 = _mm_andnot_si128(t3, t2); // fraction + glm_ivec4 const Equal = _mm_cmpeq_epi32(t3, t4); + glm_ivec4 const Nequal = _mm_cmpeq_epi32(t5, _mm_setzero_si128()); + glm_ivec4 const And = _mm_and_si128(Equal, Nequal); + return _mm_castsi128_ps(And); // exponent = all 1s and fraction != 0 +} + +// Agner Fog method +GLM_FUNC_QUALIFIER glm_vec4 glm_vec4_inf(glm_vec4 x) +{ + glm_ivec4 const t1 = _mm_castps_si128(x); // reinterpret as 32-bit integer + glm_ivec4 const t2 = _mm_sll_epi32(t1, _mm_cvtsi32_si128(1)); // shift out sign bit + return _mm_castsi128_ps(_mm_cmpeq_epi32(t2, _mm_set1_epi32(0xFF000000))); // exponent is all 1s, fraction is 0 +} + +#endif//GLM_ARCH & GLM_ARCH_SSE2_BIT |