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9e41fafd0d
Buildfixing Move some file util files Buildfix Move KeyMap.cpp/h to Core where they belong better. libretro buildfix attempt Move ini_file More buildfixes
45 lines
No EOL
1.6 KiB
C
45 lines
No EOL
1.6 KiB
C
#include "fast_math.h"
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#include "fast_matrix.h"
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#define xx 0
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#define xy 1
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#define xz 2
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#define xw 3
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#define yx 4
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#define yy 5
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#define yz 6
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#define yw 7
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#define zx 8
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#define zy 9
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#define zz 10
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#define zw 11
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#define wx 12
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#define wy 13
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#define wz 14
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#define ww 15
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void fast_matrix_mul_4x4_c(float *dest, const float *a, const float *b) {
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dest[xx] = b[xx] * a[xx] + b[xy] * a[yx] + b[xz] * a[zx] + b[xw] * a[wx];
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dest[xy] = b[xx] * a[xy] + b[xy] * a[yy] + b[xz] * a[zy] + b[xw] * a[wy];
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dest[xz] = b[xx] * a[xz] + b[xy] * a[yz] + b[xz] * a[zz] + b[xw] * a[wz];
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dest[xw] = b[xx] * a[xw] + b[xy] * a[yw] + b[xz] * a[zw] + b[xw] * a[ww];
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dest[yx] = b[yx] * a[xx] + b[yy] * a[yx] + b[yz] * a[zx] + b[yw] * a[wx];
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dest[yy] = b[yx] * a[xy] + b[yy] * a[yy] + b[yz] * a[zy] + b[yw] * a[wy];
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dest[yz] = b[yx] * a[xz] + b[yy] * a[yz] + b[yz] * a[zz] + b[yw] * a[wz];
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dest[yw] = b[yx] * a[xw] + b[yy] * a[yw] + b[yz] * a[zw] + b[yw] * a[ww];
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dest[zx] = b[zx] * a[xx] + b[zy] * a[yx] + b[zz] * a[zx] + b[zw] * a[wx];
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dest[zy] = b[zx] * a[xy] + b[zy] * a[yy] + b[zz] * a[zy] + b[zw] * a[wy];
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dest[zz] = b[zx] * a[xz] + b[zy] * a[yz] + b[zz] * a[zz] + b[zw] * a[wz];
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dest[zw] = b[zx] * a[xw] + b[zy] * a[yw] + b[zz] * a[zw] + b[zw] * a[ww];
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dest[wx] = b[wx] * a[xx] + b[wy] * a[yx] + b[wz] * a[zx] + b[ww] * a[wx];
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dest[wy] = b[wx] * a[xy] + b[wy] * a[yy] + b[wz] * a[zy] + b[ww] * a[wy];
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dest[wz] = b[wx] * a[xz] + b[wy] * a[yz] + b[wz] * a[zz] + b[ww] * a[wz];
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dest[ww] = b[wx] * a[xw] + b[wy] * a[yw] + b[wz] * a[zw] + b[ww] * a[ww];
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}
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#ifndef fast_matrix_mul_4x4
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fptr_fast_matrix_mul_4x4 fast_matrix_mul_4x4 = &fast_matrix_mul_4x4_c;
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#endif |