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Testing a generator to output different draw triangle versions, more gamma correct blending

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This commit is contained in:
Krzosa Karol
2022-02-20 17:28:46 +01:00
parent e0b2182d11
commit 8cfd52ed81
10 changed files with 1092 additions and 364 deletions
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81
math.h
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@@ -1,6 +1,8 @@
#include "main.h"
#include <intrin.h>
constexpr float PI32 = 3.14159265359f;
struct Mat4 {
float p[4][4];
};
@@ -20,8 +22,6 @@ union Vec4 {
struct { Vec3 xyz; };
};
constexpr float PI32 = 3.14159265359f;
FUNCTION
Vec4 vec4(Vec3 a, float b) {
Vec4 result = { a.x,a.y,a.z,b };
@@ -29,7 +29,7 @@ Vec4 vec4(Vec3 a, float b) {
}
FUNCTION
Mat4 Mat4Identity() {
Mat4 make_matrix_identity() {
Mat4 result = {
1,0,0,0,
0,1,0,0,
@@ -40,7 +40,7 @@ Mat4 Mat4Identity() {
}
FUNCTION
float Sin(float value) {
float sin(float value) {
__m128 result128 = _mm_set_ps1(value);
result128 = _mm_sin_ps(result128);
float result = *(float *)&result128;
@@ -48,7 +48,7 @@ float Sin(float value) {
}
FUNCTION
float Cos(float value) {
float cos(float value) {
__m128 result128 = _mm_set_ps1(value);
result128 = _mm_cos_ps(result128);
float result = *(float*)&result128;
@@ -56,7 +56,7 @@ float Cos(float value) {
}
FUNCTION
float Tan(float value) {
float tan(float value) {
__m128 result128 = _mm_set_ps1(value);
result128 = _mm_tan_ps(result128);
float result = *(float*)&result128;
@@ -64,7 +64,7 @@ float Tan(float value) {
}
FUNCTION
float Floor(float value) {
float floor(float value) {
__m128 result128 = _mm_set_ps1(value);
result128 = _mm_floor_ps(result128);
float result = *(float*)&result128;
@@ -72,7 +72,7 @@ float Floor(float value) {
}
FUNCTION
float Ceil(float value) {
float ceil(float value) {
__m128 result128 = _mm_set_ps1(value);
result128 = _mm_ceil_ps(result128);
float result = *(float*)&result128;
@@ -80,7 +80,7 @@ float Ceil(float value) {
}
FUNCTION
float Round(float value) {
float round(float value) {
__m128 result128 = _mm_set_ps1(value);
result128 = _mm_round_ps(result128, _MM_FROUND_TO_NEAREST_INT| _MM_FROUND_NO_EXC);
float result = *(float*)&result128;
@@ -88,9 +88,17 @@ float Round(float value) {
}
FUNCTION
Mat4 Mat4RotationZ(float rotation) {
float s = Sin(rotation);
float c = Cos(rotation);
float sqrt(float value) {
__m128 result128 = _mm_set_ps1(value);
result128 = _mm_sqrt_ps(result128);
float result = *(float*)&result128;
return result;
}
FUNCTION
Mat4 make_matrix_rotation_x(float rotation) {
float s = sin(rotation);
float c = cos(rotation);
Mat4 result = {
c, s, 0, 0,
-s, c, 0, 0,
@@ -101,9 +109,9 @@ Mat4 Mat4RotationZ(float rotation) {
}
FUNCTION
Mat4 Mat4RotationY(float rotation) {
float s = Sin(rotation);
float c = Cos(rotation);
Mat4 make_matrix_rotation_y(float rotation) {
float s = sin(rotation);
float c = cos(rotation);
Mat4 result = {
c, 0, -s, 0,
0, 1, 0, 0,
@@ -114,9 +122,9 @@ Mat4 Mat4RotationY(float rotation) {
}
FUNCTION
Mat4 Mat4RotationX(float rotation) {
float s = Sin(rotation);
float c = Cos(rotation);
Mat4 make_matrix_rotation_z(float rotation) {
float s = sin(rotation);
float c = cos(rotation);
Mat4 result = {
1, 0, 0, 0,
0, c, s, 0,
@@ -127,9 +135,9 @@ Mat4 Mat4RotationX(float rotation) {
}
FUNCTION
Mat4 Mat4Perspective(float fov, float window_x, float window_y, float znear, float zfar) {
Mat4 make_matrix_perspective(float fov, float window_x, float window_y, float znear, float zfar) {
float aspect_ratio = window_y / window_x;
float f = (1.f / Tan((fov/2.f)*(180.f/PI32)));
float f = (1.f / tan((fov/2.f)*(180.f/PI32)));
Mat4 result = {
aspect_ratio*f, 0, 0, 0,
0, f, 0, 0,
@@ -140,7 +148,19 @@ Mat4 Mat4Perspective(float fov, float window_x, float window_y, float znear, flo
}
FUNCTION
Mat4 Mat4Translate(Mat4 a, Vec3 translation) {
Mat4 transpose(Mat4 a) {
Mat4 result = a;
result.p[0][1] = result.p[1][0];
result.p[0][2] = result.p[2][0];
result.p[0][3] = result.p[3][0];
result.p[2][1] = result.p[1][2];
result.p[3][1] = result.p[1][3];
result.p[3][2] = result.p[2][3];
return result;
}
FUNCTION
Mat4 translate(Mat4 a, Vec3 translation) {
a.p[0][0] += translation.x;
a.p[0][1] += translation.y;
a.p[0][2] += translation.z;
@@ -189,7 +209,6 @@ Vec3 operator+(Vec3 a, Vec3 b) {
return result;
}
FUNCTION
Vec4 operator*(Mat4 a, Vec4 b) {
Vec4 result = {
@@ -225,13 +244,13 @@ Mat4 operator*(Mat4 a, Mat4 b) {
}
FUNCTION
float Dot(Vec3 a, Vec3 b) {
float dot(Vec3 a, Vec3 b) {
float result = a.x * b.x + a.y * b.y + a.z * b.z;
return result;
}
FUNCTION
Vec3 Cross(Vec3 a, Vec3 b) {
Vec3 cross(Vec3 a, Vec3 b) {
Vec3 result = {
a.y * b.z - a.z * b.y,
a.z * b.x - a.x * b.z,
@@ -241,7 +260,7 @@ Vec3 Cross(Vec3 a, Vec3 b) {
}
FUNCTION
U32 ColorToU32ARGB(Vec4 a) {
U32 color_to_u32argb(Vec4 a) {
uint8_t r8 = (uint8_t)(a.r * 255.f);
uint8_t g8 = (uint8_t)(a.g * 255.f);
uint8_t b8 = (uint8_t)(a.b * 255.f);
@@ -251,7 +270,7 @@ U32 ColorToU32ARGB(Vec4 a) {
}
FUNCTION
U32 ColorToU32ABGR(Vec4 a) {
U32 color_to_u32abgr(Vec4 a) {
uint8_t r8 = (uint8_t)(a.r * 255.f);
uint8_t g8 = (uint8_t)(a.g * 255.f);
uint8_t b8 = (uint8_t)(a.b * 255.f);
@@ -261,7 +280,7 @@ U32 ColorToU32ABGR(Vec4 a) {
}
FUNCTION
Vec4 V4ARGB(U32 c) {
Vec4 v4argb(U32 c) {
float a = ((c & 0xff000000) >> 24) / 255.f;
float r = ((c & 0x00ff0000) >> 16) / 255.f;
float g = ((c & 0x0000ff00) >> 8) / 255.f;
@@ -271,7 +290,7 @@ Vec4 V4ARGB(U32 c) {
}
FUNCTION
Vec4 V4ABGR(U32 c) {
Vec4 v4abgr(U32 c) {
float a = ((c & 0xff000000) >> 24) / 255.f;
float b = ((c & 0x00ff0000) >> 16) / 255.f;
float g = ((c & 0x0000ff00) >> 8) / 255.f;
@@ -281,13 +300,13 @@ Vec4 V4ABGR(U32 c) {
}
FUNCTION
float Lerp(float a, float b, float t) {
float lerp(float a, float b, float t) {
float result = (1.0f - t) * a + t * b;
return result;
}
FUNCTION
Vec4 Lerp(Vec4 a, Vec4 b, float t) {
Vec4 result = {Lerp(a.x,b.x,t), Lerp(a.y,b.y,t), Lerp(a.z,b.z,t), Lerp(a.w,b.w,t) };
Vec4 lerp(Vec4 a, Vec4 b, float t) {
Vec4 result = {lerp(a.x,b.x,t), lerp(a.y,b.y,t), lerp(a.z,b.z,t), lerp(a.w,b.w,t) };
return result;
}