diff options
Diffstat (limited to 'include/cglm/affine-mat.h')
| -rw-r--r-- | include/cglm/affine-mat.h | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/include/cglm/affine-mat.h b/include/cglm/affine-mat.h new file mode 100644 index 0000000..c22c0e0 --- /dev/null +++ b/include/cglm/affine-mat.h @@ -0,0 +1,189 @@ +/* + * Copyright (c), Recep Aslantas. + * + * MIT License (MIT), http://opensource.org/licenses/MIT + * Full license can be found in the LICENSE file + */ + +/* + Functions: + CGLM_INLINE void glm_mul(mat4 m1, mat4 m2, mat4 dest); + CGLM_INLINE void glm_mul_rot(mat4 m1, mat4 m2, mat4 dest); + CGLM_INLINE void glm_inv_tr(mat4 mat); + */ + +#ifndef cglm_affine_mat_h +#define cglm_affine_mat_h + +#include "common.h" +#include "mat4.h" +#include "mat3.h" + +#ifdef CGLM_SSE_FP +# include "simd/sse2/affine.h" +#endif + +#ifdef CGLM_AVX_FP +# include "simd/avx/affine.h" +#endif + +#ifdef CGLM_NEON_FP +# include "simd/neon/affine.h" +#endif + +#ifdef CGLM_SIMD_WASM +# include "simd/wasm/affine.h" +#endif + +/*! + * @brief this is similar to glm_mat4_mul but specialized to affine transform + * + * Matrix format should be: + * R R R X + * R R R Y + * R R R Z + * 0 0 0 W + * + * this reduces some multiplications. It should be faster than mat4_mul. + * if you are not sure about matrix format then DON'T use this! use mat4_mul + * + * @param[in] m1 affine matrix 1 + * @param[in] m2 affine matrix 2 + * @param[out] dest result matrix + */ +CGLM_INLINE +void +glm_mul(mat4 m1, mat4 m2, mat4 dest) { +#if defined(__wasm__) && defined(__wasm_simd128__) + glm_mul_wasm(m1, m2, dest); +#elif defined(__AVX__) + glm_mul_avx(m1, m2, dest); +#elif defined( __SSE__ ) || defined( __SSE2__ ) + glm_mul_sse2(m1, m2, dest); +#elif defined(CGLM_NEON_FP) + glm_mul_neon(m1, m2, dest); +#else + float a00 = m1[0][0], a01 = m1[0][1], a02 = m1[0][2], a03 = m1[0][3], + a10 = m1[1][0], a11 = m1[1][1], a12 = m1[1][2], a13 = m1[1][3], + a20 = m1[2][0], a21 = m1[2][1], a22 = m1[2][2], a23 = m1[2][3], + a30 = m1[3][0], a31 = m1[3][1], a32 = m1[3][2], a33 = m1[3][3], + + b00 = m2[0][0], b01 = m2[0][1], b02 = m2[0][2], + b10 = m2[1][0], b11 = m2[1][1], b12 = m2[1][2], + b20 = m2[2][0], b21 = m2[2][1], b22 = m2[2][2], + b30 = m2[3][0], b31 = m2[3][1], b32 = m2[3][2], b33 = m2[3][3]; + + dest[0][0] = a00 * b00 + a10 * b01 + a20 * b02; + dest[0][1] = a01 * b00 + a11 * b01 + a21 * b02; + dest[0][2] = a02 * b00 + a12 * b01 + a22 * b02; + dest[0][3] = a03 * b00 + a13 * b01 + a23 * b02; + + dest[1][0] = a00 * b10 + a10 * b11 + a20 * b12; + dest[1][1] = a01 * b10 + a11 * b11 + a21 * b12; + dest[1][2] = a02 * b10 + a12 * b11 + a22 * b12; + dest[1][3] = a03 * b10 + a13 * b11 + a23 * b12; + + dest[2][0] = a00 * b20 + a10 * b21 + a20 * b22; + dest[2][1] = a01 * b20 + a11 * b21 + a21 * b22; + dest[2][2] = a02 * b20 + a12 * b21 + a22 * b22; + dest[2][3] = a03 * b20 + a13 * b21 + a23 * b22; + + dest[3][0] = a00 * b30 + a10 * b31 + a20 * b32 + a30 * b33; + dest[3][1] = a01 * b30 + a11 * b31 + a21 * b32 + a31 * b33; + dest[3][2] = a02 * b30 + a12 * b31 + a22 * b32 + a32 * b33; + dest[3][3] = a03 * b30 + a13 * b31 + a23 * b32 + a33 * b33; +#endif +} + +/*! + * @brief this is similar to glm_mat4_mul but specialized to affine transform + * + * Right Matrix format should be: + * R R R 0 + * R R R 0 + * R R R 0 + * 0 0 0 1 + * + * this reduces some multiplications. It should be faster than mat4_mul. + * if you are not sure about matrix format then DON'T use this! use mat4_mul + * + * @param[in] m1 affine matrix 1 + * @param[in] m2 affine matrix 2 + * @param[out] dest result matrix + */ +CGLM_INLINE +void +glm_mul_rot(mat4 m1, mat4 m2, mat4 dest) { +#if defined(__wasm__) && defined(__wasm_simd128__) + glm_mul_rot_wasm(m1, m2, dest); +#elif defined( __SSE__ ) || defined( __SSE2__ ) + glm_mul_rot_sse2(m1, m2, dest); +#elif defined(CGLM_NEON_FP) + glm_mul_rot_neon(m1, m2, dest); +#else + float a00 = m1[0][0], a01 = m1[0][1], a02 = m1[0][2], a03 = m1[0][3], + a10 = m1[1][0], a11 = m1[1][1], a12 = m1[1][2], a13 = m1[1][3], + a20 = m1[2][0], a21 = m1[2][1], a22 = m1[2][2], a23 = m1[2][3], + a30 = m1[3][0], a31 = m1[3][1], a32 = m1[3][2], a33 = m1[3][3], + + b00 = m2[0][0], b01 = m2[0][1], b02 = m2[0][2], + b10 = m2[1][0], b11 = m2[1][1], b12 = m2[1][2], + b20 = m2[2][0], b21 = m2[2][1], b22 = m2[2][2]; + + dest[0][0] = a00 * b00 + a10 * b01 + a20 * b02; + dest[0][1] = a01 * b00 + a11 * b01 + a21 * b02; + dest[0][2] = a02 * b00 + a12 * b01 + a22 * b02; + dest[0][3] = a03 * b00 + a13 * b01 + a23 * b02; + + dest[1][0] = a00 * b10 + a10 * b11 + a20 * b12; + dest[1][1] = a01 * b10 + a11 * b11 + a21 * b12; + dest[1][2] = a02 * b10 + a12 * b11 + a22 * b12; + dest[1][3] = a03 * b10 + a13 * b11 + a23 * b12; + + dest[2][0] = a00 * b20 + a10 * b21 + a20 * b22; + dest[2][1] = a01 * b20 + a11 * b21 + a21 * b22; + dest[2][2] = a02 * b20 + a12 * b21 + a22 * b22; + dest[2][3] = a03 * b20 + a13 * b21 + a23 * b22; + + dest[3][0] = a30; + dest[3][1] = a31; + dest[3][2] = a32; + dest[3][3] = a33; +#endif +} + +/*! + * @brief inverse orthonormal rotation + translation matrix (ridig-body) + * + * @code + * X = | R T | X' = | R' -R'T | + * | 0 1 | | 0 1 | + * @endcode + * + * @param[in,out] mat matrix + */ +CGLM_INLINE +void +glm_inv_tr(mat4 mat) { +#if defined(__wasm__) && defined(__wasm_simd128__) + glm_inv_tr_wasm(mat); +#elif defined( __SSE__ ) || defined( __SSE2__ ) + glm_inv_tr_sse2(mat); +#elif defined(CGLM_NEON_FP) + glm_inv_tr_neon(mat); +#else + CGLM_ALIGN_MAT mat3 r; + CGLM_ALIGN(8) vec3 t; + + /* rotate */ + glm_mat4_pick3t(mat, r); + glm_mat4_ins3(r, mat); + + /* translate */ + glm_mat3_mulv(r, mat[3], t); + glm_vec3_negate(t); + glm_vec3_copy(t, mat[3]); +#endif +} + +#endif /* cglm_affine_mat_h */ |