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6bb55b32eb
* Added float4x4_inverse test. * Bump tolerance. * Fixed broadcast bug in simd128_f32_dot_ni.
47 lines
1.3 KiB
C++
47 lines
1.3 KiB
C++
/*
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* Copyright 2010-2026 Branimir Karadzic. All rights reserved.
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* License: https://github.com/bkaradzic/bx/blob/master/LICENSE
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*/
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#include "test.h"
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#include <bx/float4x4_t.h>
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#include <bx/math.h>
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#include <bx/string.h>
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TEST_CASE("float4x4_inverse", "[float4x4]")
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{
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const float src[] =
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{
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1.20629f, 0.0f, 0.0f, 0.0f,
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0.0f, 2.14451f, 0.0f, 0.0f,
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0.0f, 0.0f, -1.00001f, -1.0f,
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0.0f, 0.0f, -2.00001f, 0.0f,
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};
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static_assert(BX_COUNTOF(src) == 16);
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bx::float4x4_t mtx;
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mtx.col[0] = bx::simd128_ld(src[ 0], src[ 1], src[ 2], src[ 3]);
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mtx.col[1] = bx::simd128_ld(src[ 4], src[ 5], src[ 6], src[ 7]);
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mtx.col[2] = bx::simd128_ld(src[ 8], src[ 9], src[10], src[11]);
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mtx.col[3] = bx::simd128_ld(src[12], src[13], src[14], src[15]);
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bx::float4x4_t inv;
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bx::float4x4_inverse(&inv, &mtx);
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float ref[16];
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bx::mtxInverse(ref, src);
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BX_ALIGN_DECL_16(float) result[16];
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bx::simd128_st(&result[ 0], inv.col[0]);
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bx::simd128_st(&result[ 4], inv.col[1]);
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bx::simd128_st(&result[ 8], inv.col[2]);
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bx::simd128_st(&result[12], inv.col[3]);
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for (uint32_t ii = 0; ii < 16; ++ii)
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{
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const float diff = bx::abs(result[ii] - ref[ii]);
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INFO("ii=" << ii << " result=" << result[ii] << " ref=" << ref[ii] << " diff=" << diff);
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CHECK(bx::isEqual(result[ii], ref[ii], 0.0001f) );
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}
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}
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