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Simplify math/vector files

This commit is contained in:
twinaphex 2017-04-20 10:30:30 +02:00
parent fa347475e8
commit 9daa63437a
3 changed files with 35 additions and 57 deletions
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21
libretro-common/gfx/math/vector_2.c
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@ -37,27 +37,18 @@ float vec2_cross(const float *a, const float *b)
void vec2_add(float *dst, const float *src) void vec2_add(float *dst, const float *src)
{ {
unsigned i; dst[0] += src[0];
unsigned n = 2; dst[1] += src[1];
for (i = 0; i < n; i++)
dst[i] += src[i];
} }
void vec2_subtract(float *dst, const float *src) void vec2_subtract(float *dst, const float *src)
{ {
unsigned i; dst[0] -= src[0];
unsigned n = 2; dst[1] -= src[1];
for (i = 0; i < n; i++)
dst[i] -= src[i];
} }
void vec2_copy(float *dst, const float *src) void vec2_copy(float *dst, const float *src)
{ {
unsigned i; dst[0] = src[0];
unsigned n = 2; dst[1] = src[1];
for (i = 0; i < n; i++)
dst[i] = src[i];
} }

35
libretro-common/gfx/math/vector_3.c
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@ -40,44 +40,35 @@ void vec3_cross(float* dst, const float *a, const float *b)
float vec3_length(const float *a) float vec3_length(const float *a)
{ {
float length_sq = vec3_dot(a,a); float length_sq = vec3_dot(a,a);
float length = sqrtf(length_sq); return sqrtf(length_sq);
return length;
} }
void vec3_add(float *dst, const float *src) void vec3_add(float *dst, const float *src)
{ {
unsigned i; dst[0] += src[0];
unsigned n = 3; dst[1] += src[1];
dst[2] += src[2];
for (i = 0; i < n; i++)
dst[i] += src[i];
} }
void vec3_subtract(float *dst, const float *src) void vec3_subtract(float *dst, const float *src)
{ {
unsigned i; dst[0] -= src[0];
unsigned n = 3; dst[1] -= src[1];
dst[2] -= src[2];
for (i = 0; i < n; i++)
dst[i] -= src[i];
} }
void vec3_scale(float *dst, const float scale) void vec3_scale(float *dst, const float scale)
{ {
unsigned i; dst[0] *= scale;
unsigned n = 3; dst[1] *= scale;
dst[2] *= scale;
for (i = 0; i < n; i++)
dst[i] *= scale;
} }
void vec3_copy(float *dst, const float *src) void vec3_copy(float *dst, const float *src)
{ {
unsigned i; dst[0] = src[0];
unsigned n = 3; dst[1] = src[1];
dst[2] = src[2];
for (i = 0; i < n; i++)
dst[i] = src[i];
} }
void vec3_normalize(float *dst) void vec3_normalize(float *dst)

36
libretro-common/gfx/math/vector_4.c
View File

@ -27,36 +27,32 @@
void vec4_add(float *dst, const float *src) void vec4_add(float *dst, const float *src)
{ {
unsigned i; dst[0] += src[0];
unsigned n = 4; dst[1] += src[1];
dst[2] += src[2];
for (i = 0; i < n; i++) dst[3] += src[3];
dst[i] += src[i];
} }
void vec4_subtract(float *dst, const float *src) void vec4_subtract(float *dst, const float *src)
{ {
unsigned i; dst[0] -= src[0];
unsigned n = 4; dst[1] -= src[1];
dst[2] -= src[2];
for (i = 0; i < n; i++) dst[3] -= src[3];
dst[i] -= src[i];
} }
void vec4_scale(float *dst, const float scale) void vec4_scale(float *dst, const float scale)
{ {
unsigned i; dst[0] *= scale;
unsigned n = 4; dst[1] *= scale;
dst[2] *= scale;
for (i = 0; i < n; i++) dst[3] *= scale;
dst[i] *= scale;
} }
void vec4_copy(float *dst, const float *src) void vec4_copy(float *dst, const float *src)
{ {
unsigned i; dst[0] = src[0];
unsigned n = 4; dst[1] = src[1];
dst[2] = src[2];
for (i = 0; i < n; i++) dst[3] = src[3];
dst[i] = src[i];
} }