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Оптимизация под GNU C компилятор / Optimization for GNU C Compiller

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This commit is contained in:
Andrey Pokidov 2024-11-26 13:20:12 +07:00
parent e4d75824f3
commit 081f794eb1
10 changed files with 671 additions and 755 deletions
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106
basic-geometry/matrix2x2.c
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@ -1,105 +1 @@
#include "matrix2x2.h"
// ================= Inversion ================== //
int bg_fp32_matrix2x2_invert(BgFP32Matrix2x2* matrix)
{
const float determinant = bg_fp32_matrix2x2_get_determinant(matrix);
if (-BG_FP32_EPSYLON <= determinant && determinant <= BG_FP32_EPSYLON) {
return 0;
}
const float r1c1 = matrix->r2c2;
const float r1c2 = -matrix->r1c2;
const float r2c1 = -matrix->r2c1;
const float r2c2 = matrix->r1c1;
const float multiplier = 1.0f / determinant;
matrix->r1c1 = r1c1 * multiplier;
matrix->r1c2 = r1c2 * multiplier;
matrix->r2c1 = r2c1 * multiplier;
matrix->r2c2 = r2c2 * multiplier;
return 1;
}
int bg_fp64_matrix2x2_invert(BgFP64Matrix2x2* matrix)
{
const double determinant = bg_fp64_matrix2x2_get_determinant(matrix);
if (-BG_FP64_EPSYLON <= determinant && determinant <= BG_FP64_EPSYLON) {
return 0;
}
const double r1c1 = matrix->r2c2;
const double r1c2 = -matrix->r1c2;
const double r2c1 = -matrix->r2c1;
const double r2c2 = matrix->r1c1;
const double multiplier = 1.0 / determinant;
matrix->r1c1 = r1c1 * multiplier;
matrix->r1c2 = r1c2 * multiplier;
matrix->r2c1 = r2c1 * multiplier;
matrix->r2c2 = r2c2 * multiplier;
return 1;
}
// ================ Set Inverted ================ //
int bg_fp32_matrix2x2_set_inverted(const BgFP32Matrix2x2* from, BgFP32Matrix2x2* to)
{
const float determinant = bg_fp32_matrix2x2_get_determinant(from);
if (-BG_FP32_EPSYLON <= determinant && determinant <= BG_FP32_EPSYLON) {
return 0;
}
const float r1c1 = from->r2c2;
const float r1c2 = -from->r1c2;
const float r2c1 = -from->r2c1;
const float r2c2 = from->r1c1;
const float multiplier = 1.0f / determinant;
to->r1c1 = r1c1 * multiplier;
to->r1c2 = r1c2 * multiplier;
to->r2c1 = r2c1 * multiplier;
to->r2c2 = r2c2 * multiplier;
return 1;
}
int bg_fp64_matrix2x2_set_inverted(const BgFP64Matrix2x2* from, BgFP64Matrix2x2* to)
{
const double determinant = bg_fp64_matrix2x2_get_determinant(from);
if (-BG_FP64_EPSYLON <= determinant && determinant <= BG_FP64_EPSYLON) {
return 0;
}
const double r1c1 = from->r2c2;
const double r1c2 = -from->r1c2;
const double r2c1 = -from->r2c1;
const double r2c2 = from->r1c1;
const double multiplier = 1.0 / determinant;
to->r1c1 = r1c1 * multiplier;
to->r1c2 = r1c2 * multiplier;
to->r2c1 = r2c1 * multiplier;
to->r2c2 = r2c2 * multiplier;
return 1;
}
#include "matrix2x2.h"