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Start math types;

This commit is contained in:
bjorn 2018-11-24 18:04:27 -08:00 committed by Bjorn Swenson
parent ca75cb37c1
commit ba192374dc
21 changed files with 2403 additions and 285 deletions
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5
CMakeLists.txt
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@ -478,12 +478,17 @@ if(LOVR_ENABLE_MATH)
target_sources(lovr PRIVATE
src/math/math.c
src/math/curve.c
src/math/pool.c
src/math/randomGenerator.c
src/math/transform.c
src/api/math.c
src/api/types/curve.c
src/api/types/pool.c
src/api/types/randomGenerator.c
src/api/types/transform.c
src/api/types/vec3.c
src/api/types/quat.c
src/api/types/mat4.c
src/lib/noise1234/noise1234.c
)

6
src/api.h
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@ -37,11 +37,14 @@ extern const luaL_Reg lovrDistanceJoint[];
extern const luaL_Reg lovrFont[];
extern const luaL_Reg lovrHingeJoint[];
extern const luaL_Reg lovrJoint[];
extern const luaL_Reg lovrMat4[];
extern const luaL_Reg lovrMaterial[];
extern const luaL_Reg lovrMesh[];
extern const luaL_Reg lovrMicrophone[];
extern const luaL_Reg lovrModel[];
extern const luaL_Reg lovrModelData[];
extern const luaL_Reg lovrPool[];
extern const luaL_Reg lovrQuat[];
extern const luaL_Reg lovrRandomGenerator[];
extern const luaL_Reg lovrRasterizer[];
extern const luaL_Reg lovrShader[];
@ -55,9 +58,12 @@ extern const luaL_Reg lovrTexture[];
extern const luaL_Reg lovrTextureData[];
extern const luaL_Reg lovrThread[];
extern const luaL_Reg lovrTransform[];
extern const luaL_Reg lovrVec3[];
extern const luaL_Reg lovrVertexData[];
extern const luaL_Reg lovrWorld[];
extern const luaL_Reg lovrLightUserdata[];
// Enums
extern const char* ArcModes[];
extern const char* AttributeTypes[];

174
src/api/math.c
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@ -1,10 +1,65 @@
#include "api.h"
#include "api/math.h"
#include "api/math.lua.h"
#include "math/math.h"
#include "math/curve.h"
#include "math/pool.h"
#include "math/randomGenerator.h"
#include "math/transform.h"
static const char* lovrMathTypeNames[] = {
[MATH_VEC3] = "vec3",
[MATH_QUAT] = "quat",
[MATH_MAT4] = "mat4"
};
static const luaL_Reg* lovrMathTypes[] = {
[MATH_VEC3] = lovrVec3,
[MATH_QUAT] = lovrQuat,
[MATH_MAT4] = lovrMat4
};
static int lovrMathTypeRefs[MAX_MATH_TYPES];
float* luax_tolightmathtype(lua_State* L, int index, MathType* type) {
uintptr_t p = (uintptr_t) lua_touserdata(L, index), aligned = ALIGN(p, POOL_ALIGN);
return *type = p - aligned, p ? (float*) aligned : NULL;
}
void luax_pushlightmathtype(lua_State* L, float* p, MathType type) {
lua_pushlightuserdata(L, (uint8_t*) p + type);
}
float* luax_tomathtype(lua_State* L, int index, MathType* type) {
int luaType = lua_type(L, index);
if (luaType == LUA_TLIGHTUSERDATA) {
return luax_tolightmathtype(L, index, type);
} else if (luaType == LUA_TUSERDATA && lua_getmetatable(L, index)) {
lua_pushliteral(L, "_type");
lua_rawget(L, -2);
*type = lua_tointeger(L, -1);
lua_pop(L, 2);
return lua_touserdata(L, index);
} else if (luaType > LUA_TTHREAD) { // cdata
lua_getfield(L, index, "_type");
*type = lua_tonumber(L, -1);
lua_pop(L, 1);
lua_getfield(L, index, "_p");
float* p = *(float**) lua_topointer(L, index);
lua_pop(L, 1);
return p;
}
return NULL;
}
float* luax_checkmathtype(lua_State* L, int index, MathType type, const char* expected) {
MathType t;
float* p = luax_tomathtype(L, index, &t);
if (!p || t != type) luaL_typerror(L, index, expected ? expected : lovrMathTypeNames[type]);
return p;
}
static int l_lovrMathNewCurve(lua_State* L) {
int top = lua_gettop(L);
bool table = lua_type(L, 1) == LUA_TTABLE;
@ -43,6 +98,14 @@ static int l_lovrMathNewCurve(lua_State* L) {
return 1;
}
static int l_lovrMathNewPool(lua_State* L) {
size_t size = luaL_optinteger(L, 1, DEFAULT_POOL_SIZE);
Pool* pool = lovrPoolCreate(size);
luax_pushobject(L, pool);
lovrRelease(pool);
return 1;
}
static int l_lovrMathNewRandomGenerator(lua_State* L) {
RandomGenerator* generator = lovrRandomGeneratorCreate();
if (lua_gettop(L) > 0){
@ -162,8 +225,33 @@ static int l_lovrMathLinearToGamma(lua_State* L) {
}
}
static int l_lovrMathVec3(lua_State* L) {
luax_pushobject(L, lovrMathGetPool());
lua_insert(L, 1);
return l_lovrPoolVec3(L);
}
static int l_lovrMathQuat(lua_State* L) {
luax_pushobject(L, lovrMathGetPool());
lua_insert(L, 1);
return l_lovrPoolQuat(L);
}
static int l_lovrMathMat4(lua_State* L) {
luax_pushobject(L, lovrMathGetPool());
lua_insert(L, 1);
return l_lovrPoolMat4(L);
}
static int l_lovrMathDrain(lua_State* L) {
luax_pushobject(L, lovrMathGetPool());
lua_insert(L, 1);
return l_lovrPoolDrain(L);
}
static const luaL_Reg lovrMath[] = {
{ "newCurve", l_lovrMathNewCurve },
{ "newPool", l_lovrMathNewPool },
{ "newRandomGenerator", l_lovrMathNewRandomGenerator },
{ "newTransform", l_lovrMathNewTransform },
{ "orientationToDirection", l_lovrMathOrientationToDirection },
@ -175,17 +263,101 @@ static const luaL_Reg lovrMath[] = {
{ "setRandomSeed", l_lovrMathSetRandomSeed },
{ "gammaToLinear", l_lovrMathGammaToLinear },
{ "linearToGamma", l_lovrMathLinearToGamma },
{ "vec3", l_lovrMathVec3 },
{ "quat", l_lovrMathQuat },
{ "mat4", l_lovrMathMat4 },
{ "drain", l_lovrMathDrain },
{ NULL, NULL }
};
static int l_lovrLightUserdata__index(lua_State* L) {
MathType type;
luax_tolightmathtype(L, 1, &type);
lua_rawgeti(L, LUA_REGISTRYINDEX, lovrMathTypeRefs[type]);
lua_pushvalue(L, 2);
lua_rawget(L, -2);
return 1;
}
static int l_lovrLightUserdataOp(lua_State* L) {
MathType type;
luax_tolightmathtype(L, 1, &type);
lua_rawgeti(L, LUA_REGISTRYINDEX, lovrMathTypeRefs[type]);
lua_pushvalue(L, lua_upvalueindex(1));
lua_gettable(L, -2);
lua_pushvalue(L, 1);
lua_pushvalue(L, 2);
lua_call(L, 2, 1);
return 1;
}
int luaopen_lovr_math(lua_State* L) {
lua_newtable(L);
luaL_register(L, NULL, lovrMath);
luax_registertype(L, "Curve", lovrCurve);
luax_registertype(L, "Pool", lovrPool);
luax_registertype(L, "RandomGenerator", lovrRandomGenerator);
luax_registertype(L, "Transform", lovrTransform);
if (lovrMathInit()) {
// Store every math type metatable in the registry and register it as a type
for (int i = 0; i < MAX_MATH_TYPES; i++) {
lua_newtable(L);
luaL_register(L, NULL, lovrMathTypes[i]);
lovrMathTypeRefs[i] = luaL_ref(L, LUA_REGISTRYINDEX);
luaL_newmetatable(L, lovrMathTypeNames[i]);
lua_pushvalue(L, -1);
lua_setfield(L, -1, "__index");
lua_pushinteger(L, i);
lua_setfield(L, -2, "_type");
luaL_register(L, NULL, lovrMathTypes[i]);
lua_pop(L, 1);
}
// Global lightuserdata metatable
lua_pushlightuserdata(L, NULL);
lua_newtable(L);
lua_pushcfunction(L, l_lovrLightUserdata__index);
lua_setfield(L, -2, "__index");
const char* ops[] = { "__add", "__sub", "__mul", "__div", "__unm", "__len", "__tostring" };
for (size_t i = 0; i < sizeof(ops) / sizeof(ops[0]); i++) {
lua_pushstring(L, ops[i]);
lua_pushcclosure(L, l_lovrLightUserdataOp, 1);
lua_setfield(L, -2, ops[i]);
}
lua_setmetatable(L, -2);
lua_pop(L, 1);
// Pool size
luax_pushconf(L);
lua_getfield(L, -1, "math");
size_t poolSize = DEFAULT_POOL_SIZE;
if (lua_istable(L, -1)) {
lua_getfield(L, -1, "poolsize");
if (lua_isnumber(L, -1)) {
poolSize = lua_tonumber(L, -1);
}
lua_pop(L, 1);
}
lua_pop(L, 2);
// Module
if (lovrMathInit(poolSize)) {
luax_atexit(L, lovrMathDestroy);
}
// Inject LuaJIT superjuice
lua_pushcfunction(L, luax_getstack);
lovrAssert(!luaL_loadbuffer(L, (const char*) math_lua, math_lua_len, "math.lua"), "Could not load math.lua");
lua_pushvalue(L, -3); // lovr.math
luaL_getmetatable(L, "Pool");
if (lua_pcall(L, 2, 0, -4)) {
lovrThrow(lua_tostring(L, -1));
}
lua_pop(L, 1);
return 1;
}

13
src/api/math.h
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@ -1,10 +1,21 @@
#include "lib/math.h"
#include "math/pool.h"
#include "math/randomGenerator.h"
float* luax_tolightmathtype(lua_State* L, int index, MathType* type);
void luax_pushlightmathtype(lua_State* L, float* p, MathType type);
float* luax_tomathtype(lua_State* L, int index, MathType* type);
float* luax_checkmathtype(lua_State* L, int index, MathType type, const char* message);
int luax_readtransform(lua_State* L, int index, mat4 transform, int scaleComponents);
Seed luax_checkrandomseed(lua_State* L, int index);
int l_lovrRandomGeneratorRandom(lua_State* L);
int l_lovrRandomGeneratorRandomNormal(lua_State* L);
int l_lovrRandomGeneratorGetSeed(lua_State* L);
int l_lovrRandomGeneratorSetSeed(lua_State* L);
int l_lovrPoolVec3(lua_State* L);
int l_lovrPoolQuat(lua_State* L);
int l_lovrPoolMat4(lua_State* L);
int l_lovrPoolDrain(lua_State* L);
int l_lovrVec3Set(lua_State* L);
int l_lovrQuatSet(lua_State* L);
int l_lovrMat4Set(lua_State* L);

377
src/api/math.lua Normal file
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@ -0,0 +1,377 @@
local _Gmath = math
local math, Pool = ...
local ffi = type(jit) == 'table' and jit.status() and require 'ffi'
if not ffi then return end
local C, new, cast, typeof, istype = ffi.C, ffi.new, ffi.cast, ffi.typeof, ffi.istype
ffi.cdef [[
typedef union { struct { float x; float y; float z; }; float _p[4]; } vec3;
typedef union { struct { float x; float y; float z; float w; }; float _p[4]; } quat;
typedef union { struct { float m[16]; }; float _p[16]; } mat4;
// From math/pool.h
typedef struct Pool Pool;
enum { MATH_VEC3, MATH_QUAT, MATH_MAT4 };
Pool* lovrPoolCreate(size_t count);
vec3* lovrPoolAllocateVec3(Pool* pool);
quat* lovrPoolAllocateQuat(Pool* pool);
mat4* lovrPoolAllocateMat4(Pool* pool);
Pool* lovrMathGetPool();
// From lib/math.h
// Careful, the declarations below are using as the structs above, not the usual C types
vec3* vec3_init(vec3* v, vec3* u);
vec3* vec3_set(vec3* v, float x, float y, float z);
vec3* vec3_add(vec3* v, vec3* u);
vec3* vec3_scale(vec3* v, float s);
vec3* vec3_normalize(vec3* v);
float vec3_length(vec3* v);
float vec3_dot(vec3* v, vec3* u);
vec3* vec3_cross(vec3* v, vec3* u);
vec3* vec3_lerp(vec3* v, vec3* u, float t);
quat* quat_init(quat* q, quat* r);
quat* quat_set(quat* q, float x, float y, float z, float w);
quat* quat_fromAngleAxis(quat* q, float angle, float ax, float ay, float az);
quat* quat_fromMat4(quat* q, mat4* m);
quat* quat_mul(quat* q, quat* r);
quat* quat_normalize(quat* q);
float quat_length(quat* q);
quat* quat_slerp(quat* q, quat* r, float t);
void quat_rotate(quat* q, vec3* v);
void quat_getAngleAxis(quat* q, float* angle, float* x, float* y, float* z);
quat* quat_between(quat* q, vec3* u, vec3* v);
mat4* mat4_set(mat4* m, mat4* n);
mat4* mat4_identity(mat4* m);
mat4* mat4_invert(mat4* m);
mat4* mat4_transpose(mat4* m);
mat4* mat4_multiply(mat4* m, mat4* n);
mat4* mat4_translate(mat4* m, float x, float y, float z);
mat4* mat4_rotate(mat4* m, float angle, float x, float y, float z);
mat4* mat4_rotateQuat(mat4* m, quat* q);
mat4* mat4_scale(mat4* m, float x, float y, float z);
void mat4_getPose(mat4* m, float* x, float* y, float* z, float* angle, float* ax, float* ay, float* az);
void mat4_getTransform(mat4* m, float* x, float* y, float* z, float* sx, float* sy, float* sz, float* angle, float* ax, float* ay, float* az);
mat4* mat4_setTransform(mat4* m, float x, float y, float z, float sx, float sy, float sz, float angle, float ax, float ay, float az);
mat4* mat4_orthographic(mat4* m, float left, float right, float top, float bottom, float near, float far);
mat4* mat4_perspective(mat4* m, float near, float far, float fov, float aspect);
mat4* mat4_lookAt(mat4* m, vec3* from, vec3* to, vec3* up);
void mat4_transform(mat4* m, float* x, float* y, float* z);
void mat4_transformDirection(mat4* m, float* x, float* y, float* z);
]]
function Pool:vec3(...) return C.lovrPoolAllocateVec3(cast('Pool**', self)[0]):set(...) end
function Pool:quat(...) return C.lovrPoolAllocateQuat(cast('Pool**', self)[0]):set(...) end
function Pool:mat4(...) return C.lovrPoolAllocateMat4(cast('Pool**', self)[0]):set(...) end
local pool = C.lovrMathGetPool()
function math.vec3(...) return C.lovrPoolAllocateVec3(pool):set(...) end
function math.quat(...) return C.lovrPoolAllocateQuat(pool):set(...) end
function math.mat4(...) return C.lovrPoolAllocateMat4(pool):set(...) end
local vec3 = ffi.typeof('vec3')
local quat = ffi.typeof('quat')
local mat4 = ffi.typeof('mat4')
local function checktype(t, name)
return function(x, i, exp)
if not istype(t, x) then
local fn, arg, exp = debug.getinfo(2, 'n').name, i and ('argument #' .. i) or 'self', exp or name
error(string.format('Bad %s to %s (%s expected, got %s)', arg, fn, exp, type(x)), 3)
end
end
end
local checkvec3 = checktype(vec3, 'vec3')
local checkquat = checktype(quat, 'quat')
local checkmat4 = checktype(mat4, 'mat4')
ffi.metatype(vec3, {
__index = {
_type = C.MATH_VEC3,
unpack = function(v)
checkvec3(v)
return v.x, v.y, v.z
end,
set = function(v, x, y, z)
checkvec3(v)
if type(x) == 'number' then
C.vec3_set(v, x, y, z)
else
checkvec3(x, 1)
C.vec3_init(v, x)
end
return v
end,
copy = function(v, u)
checkvec3(v)
if istype(vec3, u) then
return u:set(v)
else
return math.vec3(v)
end
end,
save = function(v)
checkvec3(v)
return vec3(v:unpack())
end,
normalize = function(v)
checkvec3(v)
C.vec3_normalize(v)
return v
end,
dot = function(v, u)
checkvec3(v)
checkvec3(u)
--return C.vec3_dot(v, u)
return v.x * u.x + v.y * u.y + v.z * u.z
end,
cross = function(v, u)
checkvec3(v)
checkvec3(u)
C.vec3_cross(v, u)
return v
end,
lerp = function(v, u, t)
checkvec3(v)
checkvec3(u)
C.vec3_lerp(v, u, t)
return v
end
},
__add = function(v, u) return math.vec3(v.x + u.x, v.y + u.y, v.z + u.z) end,
__sub = function(v, u) return math.vec3(v.x - u.x, v.y - u.y, v.z - u.z) end,
__mul = function(v, u) return math.vec3(v.x * u.x, v.y * u.y, v.z * u.z) end,
__div = function(v, u) return math.vec3(v.x / u.x, v.y / u.y, v.z / u.z) end,
__unm = function(v) return math.vec3(-v.x, -v.y, -v.z) end,
__len = function(v) return C.vec3_length(v) end,
__tostring = function(v) return string.format('(%f, %f, %f)', v.x, v.y, v.z) end
})
ffi.metatype(quat, {
__index = {
unpack = function(q, raw)
checkquat(q)
if raw then
return q.x, q.y, q.z, q.w
else
local f = new('float[4]')
C.quat_getAngleAxis(q, f + 0, f + 1, f + 2, f + 3)
return f[0], f[1], f[2], f[3]
end
end,
set = function(q, x, y, z, w, raw)
checkquat(q)
if type(x) == 'number' then
if type(y) == 'number' then
if raw then
C.quat_set(q, x, y, z, w)
else
local axis = new('vec3[1]')
axis[0] = vec3(y, z, w)
C.quat_fromAngleAxis(q, x, axis)
end
else
local axis = checkvec3(y)
--
end
elseif istype(vec3, x) then
if istype(vec3, y) then
--
else
--
end
elseif istype(quat, x) then
C.quat_init(q, x)
elseif istype(mat4, x) then
C.quat_fromMat4(q, x)
else
error('Expected a vec3, quat, mat4, or number')
end
return q
end,
copy = function(q, r)
if istype(quat, r) then
return r:set(q)
else
return math.quat(q)
end
end,
save = function(q)
checkquat(q)
return quat(quat, q:unpack())
end,
normalize = function(q)
checkquat(q)
C.quat_normalize(q)
end,
slerp = function(q, r, t)
checkquat(q)
checkquat(r)
C.quat_slerp(q, r, t)
end
},
__mul = function(q, r)
checkquat(q)
if istype(vec3, r) then
local v = math.vec3(r)
C.quat_rotate(q, v)
return v
else
checkquat(r, 'Expected a vec3 or quat')
local out = math.quat()
C.quat_mul(C.quat_init(out, q), r)
return out
end
end,
__len = function(q)
checkquat(q)
return C.quat_length(q)
end,
__tostring = function(q) return string.format('(%f, %f, %f, %f)', q.x, q.y, q.z, q.w) end
})
ffi.metatype(mat4, {
__index = {
unpack = function(m)
checkmat4(m)
return -- yum
m.m[0], m.m[1], m.m[2], m.m[3],
m.m[4], m.m[5], m.m[6], m.m[7],
m.m[8], m.m[9], m.m[10], m.m[11],
m.m[12], m.m[13], m.m[14], m.m[15]
end,
set = function(m, ...)
checkmat4(m)
if ... then
m.m[0], m.m[1], m.m[2], m.m[3],
m.m[4], m.m[5], m.m[6], m.m[7],
m.m[8], m.m[9], m.m[10], m.m[11],
m.m[12], m.m[13], m.m[14], m.m[15] = ...
else
m:identity()
end
return m
end,
copy = function(m)
checkmat4(m)
return math.mat4(m:unpack())
end,
save = function(m)
checkmat4(m)
return mat4(m:unpack())
end,
identity = function(m)
checkmat4(m)
C.mat4_identity(m)
end,
inverse = function(m)
checkmat4(m)
local out = math.mat4()
C.mat4_invert(C.mat4_set(out, m))
return out
end,
transpose = function(m)
checkmat4(m)
local out = math.mat4()
C.mat4_transpose(C.mat4_set(out, m))
return out
end,
translate = function(m, x, y, z)
checkmat4(m)
if type(x) == 'number' then
C.mat4_translate(m, x, y, z)
else
checkvec3(x, 1, 'vec3 or number')
C.mat4_translate(m, x.x, x.y, x.z)
end
end,
rotate = function(m, angle, ax, ay, az)
checkmat4(m)
if type(angle) == 'number' then
C.mat4_rotate(m, angle, ax, ay, az)
else
checkquat(angle, 1, 'quat or number')
C.mat4_rotateQuat(m, angle)
end
end,
scale = function(m, sx, sy, sz)
checkmat4(m)
if type(sx) == 'number' then
C.mat4_scale(m, sx, sy, sz)
else
checkvec3(sx, 1, 'vec3 or number')
C.mat4_scale(m, sx.x, sx.y, sx.z)
end
end,
getTransform = function(m)
checkmat4(m)
--
end,
setTransform = function(m)
checkmat4(m)
--
end,
perspective = function(m)
checkmat4(m)
--
end,
orthographic = function(m)
checkmat4(m)
--
end,
lookAt = function(m)
--
end
},
__mul = function(m, n)
checkmat4(m)
if istype(mat4, n) then
local out = math.mat4(m)
C.mat4_multiply(out, n)
return out
else
checkvec3(n, 1, 'mat4 or vec3')
local f = new('float[3]', n.x, n.y, n.z)
C.mat4_transform(m, f + 0, f + 1, f + 2)
return math.vec3(f[0], f[1], f[2])
end
end
})

842
src/api/math.lua.h Normal file
View File

@ -0,0 +1,842 @@
unsigned char math_lua[] = {
0x6c, 0x6f, 0x63, 0x61, 0x6c, 0x20, 0x5f, 0x47, 0x6d, 0x61, 0x74, 0x68,
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};
unsigned int math_lua_len = 10065;

195
src/api/types/mat4.c Normal file
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@ -0,0 +1,195 @@
#include "api.h"
#include "api/math.h"
#include "math/math.h"
#include "lib/math.h"
static int l_lovrMat4Unpack(lua_State* L) {
mat4 m = luax_checkmathtype(L, 1, MATH_MAT4, NULL);
for (int i = 0; i < 16; i++) {
lua_pushnumber(L, m[i]);
}
return 16;
}
int l_lovrMat4Set(lua_State* L) {
mat4 m = luax_checkmathtype(L, 1, MATH_MAT4, NULL);
for (int i = 0; i < 16; i++) {
m[i] = luaL_checknumber(L, i);
}
lua_settop(L, 1);
return 1;
}
static int l_lovrMat4Copy(lua_State* L) {
mat4 m = luax_checkmathtype(L, 1, MATH_MAT4, NULL);
mat4 n = lovrPoolAllocate(lovrMathGetPool(), MATH_MAT4);
mat4_init(n, m);
luax_pushlightmathtype(L, n, MATH_MAT4);
return 1;
}
static int l_lovrMat4Save(lua_State* L) {
mat4 m = luax_checkmathtype(L, 1, MATH_MAT4, NULL);
mat4 copy = lua_newuserdata(L, 16 * sizeof(float));
mat4_init(copy, m);
luaL_getmetatable(L, "mat4");
lua_setmetatable(L, -2);
return 1;
}
static int l_lovrMat4Identity(lua_State* L) {
mat4 m = luax_checkmathtype(L, 1, MATH_MAT4, NULL);
mat4_identity(m);
lua_settop(L, 1);
return 1;
}
static int l_lovrMat4Inverse(lua_State* L) {
mat4 m = luax_checkmathtype(L, 1, MATH_MAT4, NULL);
mat4 n = lovrPoolAllocate(lovrMathGetPool(), MATH_MAT4);
mat4_invert(mat4_init(n, m));
luax_pushlightmathtype(L, n, MATH_MAT4);
return 1;
}
static int l_lovrMat4Transpose(lua_State* L) {
mat4 m = luax_checkmathtype(L, 1, MATH_MAT4, NULL);
mat4 n = lovrPoolAllocate(lovrMathGetPool(), MATH_MAT4);
mat4_transpose(mat4_init(n, m));
luax_pushlightmathtype(L, n, MATH_MAT4);
return 1;
}
static int l_lovrMat4Translate(lua_State* L) {
mat4 m = luax_checkmathtype(L, 1, MATH_MAT4, NULL);
if (lua_type(L, 2) == LUA_TNUMBER) {
mat4_translate(m, luaL_checknumber(L, 2), luaL_checknumber(L, 3), luaL_checknumber(L, 4));
} else {
float* v = luax_checkmathtype(L, 2, MATH_VEC3, "vec3 or number");
mat4_translate(m, v[0], v[1], v[2]);
}
lua_settop(L, 1);
return 1;
}
static int l_lovrMat4Rotate(lua_State* L) {
mat4 m = luax_checkmathtype(L, 1, MATH_MAT4, NULL);
if (lua_type(L, 2) == LUA_TNUMBER) {
mat4_rotate(m, luaL_checknumber(L, 2), luaL_checknumber(L, 3), luaL_checknumber(L, 4), luaL_checknumber(L, 5));
} else {
float* q = luax_checkmathtype(L, 2, MATH_QUAT, "quat or number");
mat4_rotateQuat(m, q);
}
lua_settop(L, 1);
return 1;
}
static int l_lovrMat4Scale(lua_State* L) {
mat4 m = luax_checkmathtype(L, 1, MATH_MAT4, NULL);
if (lua_type(L, 2) == LUA_TNUMBER) {
float x = luaL_checknumber(L, 2);
mat4_scale(m, x, luaL_optnumber(L, 3, x), luaL_optnumber(L, 4, x));
} else {
float* s = luax_checkmathtype(L, 2, MATH_VEC3, "vec3 or number");
mat4_scale(m, s[0], s[1], s[2]);
}
lua_settop(L, 1);
return 1;
}
static int l_lovrMat4GetTransform(lua_State* L) {
mat4 m = luax_checkmathtype(L, 1, MATH_MAT4, NULL);
float x, y, z, sx, sy, sz, angle, ax, ay, az;
mat4_getTransform(m, &x, &y, &z, &sx, &sy, &sz, &angle, &ax, &ay, &az);
lua_pushnumber(L, x);
lua_pushnumber(L, y);
lua_pushnumber(L, z);
lua_pushnumber(L, sx);
lua_pushnumber(L, sy);
lua_pushnumber(L, sz);
lua_pushnumber(L, angle);
lua_pushnumber(L, ax);
lua_pushnumber(L, ay);
lua_pushnumber(L, az);
return 10;
}
static int l_lovrMat4SetTransform(lua_State* L) {
mat4 m = luax_checkmathtype(L, 1, MATH_MAT4, NULL);
float x = luaL_optnumber(L, 2, 0.);
float y = luaL_optnumber(L, 3, 0.);
float z = luaL_optnumber(L, 4, 0.);
float sx = luaL_optnumber(L, 5, 1.);
float sy = luaL_optnumber(L, 6, sx);
float sz = luaL_optnumber(L, 7, sx);
float angle = luaL_optnumber(L, 8, 0.);
float ax = luaL_optnumber(L, 9, 0.);
float ay = luaL_optnumber(L, 10, 1.);
float az = luaL_optnumber(L, 11, 0.);
mat4_setTransform(m, x, y, z, sx, sy, sz, angle, ax, ay, az);
lua_settop(L, 1);
return 1;
}
static int l_lovrMat4Perspective(lua_State* L) {
mat4 m = luax_checkmathtype(L, 1, MATH_MAT4, NULL);
float clipNear = luaL_checknumber(L, 2);
float clipFar = luaL_checknumber(L, 3);
float fov = luaL_checknumber(L, 4);
float aspect = luaL_checknumber(L, 5);
mat4_perspective(m, clipNear, clipFar, fov, aspect);
lua_settop(L, 1);
return 1;
}
static int l_lovrMat4Orthographic(lua_State* L) {
mat4 m = luax_checkmathtype(L, 1, MATH_MAT4, NULL);
float left = luaL_checknumber(L, 2);
float right = luaL_checknumber(L, 3);
float top = luaL_checknumber(L, 4);
float bottom = luaL_checknumber(L, 5);
float clipNear = luaL_checknumber(L, 6);
float clipFar = luaL_checknumber(L, 7);
mat4_orthographic(m, left, right, top, bottom, clipNear, clipFar);
lua_settop(L, 1);
return 1;
}
static int l_lovrMat4LookAt(lua_State* L) {
mat4 m = luax_checkmathtype(L, 1, MATH_MAT4, NULL);
float from[3] = { luaL_checknumber(L, 2), luaL_checknumber(L, 3), luaL_checknumber(L, 4) };
float to[3] = { luaL_checknumber(L, 5), luaL_checknumber(L, 6), luaL_checknumber(L, 7) };
float up[3] = { luaL_optnumber(L, 8, 0), luaL_optnumber(L, 9, 1), luaL_optnumber(L, 10, 0) };
mat4_lookAt(m, from, to, up);
lua_settop(L, 1);
return 1;
}
static int l_lovrMat4__mul(lua_State* L) {
mat4 m = luax_checkmathtype(L, 1, MATH_MAT4, NULL);
mat4 n = luax_checkmathtype(L, 2, MATH_MAT4, NULL);
mat4 out = lovrPoolAllocate(lovrMathGetPool(), MATH_MAT4);
mat4_multiply(mat4_init(out, m), n);
luax_pushlightmathtype(L, out, MATH_MAT4);
return 1;
}
const luaL_Reg lovrMat4[] = {
{ "unpack", l_lovrMat4Unpack },
{ "set", l_lovrMat4Set },
{ "copy", l_lovrMat4Copy },
{ "save", l_lovrMat4Save },
{ "identity", l_lovrMat4Identity },
{ "inverse", l_lovrMat4Inverse },
{ "transpose", l_lovrMat4Transpose },
{ "translate", l_lovrMat4Translate },
{ "rotate", l_lovrMat4Rotate },
{ "scale", l_lovrMat4Scale },
{ "getTransform", l_lovrMat4GetTransform },
{ "setTransform", l_lovrMat4SetTransform },
{ "perspective", l_lovrMat4Perspective },
{ "orthographic", l_lovrMat4Orthographic },
{ "lookAt", l_lovrMat4LookAt },
{ "__mul", l_lovrMat4__mul },
{ NULL, NULL }
};

71
src/api/types/pool.c Normal file
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#include "api.h"
#include "api/math.h"
#include "math/pool.h"
#include "lib/math.h"
int l_lovrPoolVec3(lua_State* L) {
Pool* pool = luax_checktype(L, 1, Pool);
vec3 v = lovrPoolAllocate(pool, MATH_VEC3);
if (v) {
luax_pushlightmathtype(L, v, MATH_VEC3);
lua_replace(L, 1);
return l_lovrVec3Set(L);
} else {
lua_pushnil(L);
}
return 1;
}
int l_lovrPoolQuat(lua_State* L) {
Pool* pool = luax_checktype(L, 1, Pool);
quat q = lovrPoolAllocate(pool, MATH_QUAT);
if (q) {
luax_pushlightmathtype(L, q, MATH_QUAT);
lua_replace(L, 1);
return l_lovrQuatSet(L);
} else {
lua_pushnil(L);
}
return 1;
}
int l_lovrPoolMat4(lua_State* L) {
Pool* pool = luax_checktype(L, 1, Pool);
mat4 m = lovrPoolAllocate(pool, MATH_MAT4);
if (m) {
luax_pushlightmathtype(L, m, MATH_MAT4);
lua_replace(L, 1);
return l_lovrMat4Set(L);
} else {
lua_pushnil(L);
}
return 1;
}
int l_lovrPoolDrain(lua_State* L) {
Pool* pool = luax_checktype(L, 1, Pool);
lovrPoolDrain(pool);
return 0;
}
int l_lovrPoolGetSize(lua_State* L) {
Pool* pool = luax_checktype(L, 1, Pool);
lua_pushinteger(L, lovrPoolGetSize(pool));
return 1;
}
int l_lovrPoolGetUsage(lua_State* L) {
Pool* pool = luax_checktype(L, 1, Pool);
lua_pushinteger(L, lovrPoolGetUsage(pool));
return 1;
}
const luaL_Reg lovrPool[] = {
{ "vec3", l_lovrPoolVec3 },
{ "quat", l_lovrPoolQuat },
{ "mat4", l_lovrPoolMat4 },
{ "drain", l_lovrPoolDrain },
{ "getSize", l_lovrPoolGetSize },
{ "getUsage", l_lovrPoolGetUsage },
{ NULL, NULL }
};

142
src/api/types/quat.c Normal file
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@ -0,0 +1,142 @@
#include "api.h"
#include "api/math.h"
#include "math/math.h"
static int l_lovrQuatUnpack(lua_State* L) {
quat q = luax_checkmathtype(L, 1, MATH_QUAT, NULL);
bool raw = lua_toboolean(L, 2);
if (raw) {
lua_pushnumber(L, q[0]);
lua_pushnumber(L, q[1]);
lua_pushnumber(L, q[2]);
lua_pushnumber(L, q[3]);
} else {
float angle, ax, ay, az;
quat_getAngleAxis(q, &angle, &ax, &ay, &az);
lua_pushnumber(L, angle);
lua_pushnumber(L, ax);
lua_pushnumber(L, ay);
lua_pushnumber(L, az);
}
return 4;
}
int l_lovrQuatSet(lua_State* L) {
quat q = luax_checkmathtype(L, 1, MATH_QUAT, NULL);
if (lua_type(L, 2) == LUA_TNUMBER) {
float x = lua_tonumber(L, 2);
if (lua_type(L, 3) == LUA_TNUMBER) {
float y = luaL_checknumber(L, 3);
float z = luaL_checknumber(L, 4);
float w = luaL_checknumber(L, 5);
bool raw = lua_toboolean(L, 6);
if (raw) {
quat_set(q, x, y, z, w);
} else {
quat_fromAngleAxis(q, x, y, z, w);
}
} else {
vec3 axis = luax_checkmathtype(L, 3, MATH_VEC3, "vec3 or number");
quat_fromAngleAxis(q, x, axis[0], axis[1], axis[2]);
}
} else {
MathType type;
float* p = luax_tomathtype(L, 2, &type);
if (!p) return luaL_typerror(L, 2, "vec3, quat, or number");
if (type == MATH_VEC3) {
if (lua_gettop(L) > 2) {
vec3 u = luax_checkmathtype(L, 3, MATH_VEC3, "vec3");
quat_between(q, p, u);
} else {
quat_between(q, (float[3]) { 0.f, 0.f, -1.f }, p);
}
} else if (type == MATH_QUAT) {
quat_init(q, p);
} else if (type == MATH_MAT4) {
quat_fromMat4(q, p);
} else {
return luaL_typerror(L, 2, "vec3, quat, mat4, or number");
}
}
lua_settop(L, 1);
return 1;
}
static int l_lovrQuatCopy(lua_State* L) {
quat q = luax_checkmathtype(L, 1, MATH_QUAT, NULL);
quat r = lovrPoolAllocate(lovrMathGetPool(), MATH_QUAT);
if (r) {
quat_init(r, q);
luax_pushlightmathtype(L, r, MATH_QUAT);
} else {
lua_pushnil(L);
}
return 1;
}
static int l_lovrQuatSave(lua_State* L) {
quat q = luax_checkmathtype(L, 1, MATH_QUAT, NULL);
quat copy = lua_newuserdata(L, 4 * sizeof(float));
quat_init(copy, q);
luaL_getmetatable(L, "quat");
lua_setmetatable(L, -2);
return 1;
}
static int l_lovrQuatNormalize(lua_State* L) {
quat q = luax_checkmathtype(L, 1, MATH_QUAT, NULL);
quat_normalize(q);
lua_settop(L, 1);
return 1;
}
static int l_lovrQuatSlerp(lua_State* L) {
quat q = luax_checkmathtype(L, 1, MATH_QUAT, NULL);
quat r = luax_checkmathtype(L, 2, MATH_QUAT, NULL);
float t = luaL_checknumber(L, 3);
quat_slerp(q, r, t);
lua_settop(L, 1);
return 1;
}
static int l_lovrQuat__mul(lua_State* L) {
quat q = luax_checkmathtype(L, 1, MATH_QUAT, NULL);
MathType type;
float* r = luax_tomathtype(L, 2, &type);
if (type == MATH_VEC3) {
vec3 out = lovrPoolAllocate(lovrMathGetPool(), MATH_VEC3);
quat_rotate(q, vec3_init(out, r));
luax_pushlightmathtype(L, out, MATH_VEC3);
} else {
quat out = lovrPoolAllocate(lovrMathGetPool(), MATH_QUAT);
quat_mul(quat_init(out, q), r);
luax_pushlightmathtype(L, out, MATH_QUAT);
}
return 1;
}
static int l_lovrQuat__len(lua_State* L) {
quat q = luax_checkmathtype(L, 1, MATH_QUAT, NULL);
lua_pushnumber(L, quat_length(q));
return 1;
}
static int l_lovrQuat__tostring(lua_State* L) {
quat q = luax_checkmathtype(L, 1, MATH_QUAT, NULL);
lua_pushfstring(L, "(%f, %f, %f, %f)", q[0], q[1], q[2], q[3]);
return 1;
}
const luaL_Reg lovrQuat[] = {
{ "unpack", l_lovrQuatUnpack },
{ "set", l_lovrQuatSet },
{ "copy", l_lovrQuatCopy },
{ "save", l_lovrQuatSave },
{ "normalize", l_lovrQuatNormalize },
{ "slerp", l_lovrQuatSlerp },
{ "__mul", l_lovrQuat__mul },
{ "__len", l_lovrQuat__len },
{ "__tostring", l_lovrQuat__tostring },
{ NULL, NULL }
};

159
src/api/types/vec3.c Normal file
View File

@ -0,0 +1,159 @@
#include "api.h"
#include "api/math.h"
#include "math/math.h"
#include "lib/math.h"
static int l_lovrVec3Unpack(lua_State* L) {
vec3 v = luax_checkmathtype(L, 1, MATH_VEC3, NULL);
lua_pushnumber(L, v[0]);
lua_pushnumber(L, v[1]);
lua_pushnumber(L, v[2]);
return 3;
}
int l_lovrVec3Set(lua_State* L) {
vec3 v = luax_checkmathtype(L, 1, MATH_VEC3, NULL);
if (lua_type(L, 2) == LUA_TNUMBER) {
vec3_set(v, luaL_checknumber(L, 2), luaL_checknumber(L, 3), luaL_checknumber(L, 4));
} else {
vec3 u = luax_checkmathtype(L, 2, MATH_VEC3, "vec3 or number");
vec3_init(v, u);
}
lua_settop(L, 1);
return 1;
}
static int l_lovrVec3Copy(lua_State* L) {
vec3 v = luax_checkmathtype(L, 1, MATH_VEC3, NULL);
vec3 out = lovrPoolAllocate(lovrMathGetPool(), MATH_VEC3);
if (out) {
vec3_init(out, v);
luax_pushlightmathtype(L, out, MATH_VEC3);
} else {
lua_pushnil(L);
}
return 1;
}
static int l_lovrVec3Save(lua_State* L) {
vec3 v = luax_checkmathtype(L, 1, MATH_VEC3, NULL);
vec3 copy = lua_newuserdata(L, 4 * sizeof(float));
vec3_init(copy, v);
luaL_getmetatable(L, "vec3");
lua_setmetatable(L, -2);
return 1;
}
static int l_lovrVec3Normalize(lua_State* L) {
vec3 v = luax_checkmathtype(L, 1, MATH_VEC3, NULL);
vec3_normalize(v);
lua_settop(L, 1);
return 1;
}
static int l_lovrVec3Dot(lua_State* L) {
vec3 v = luax_checkmathtype(L, 1, MATH_VEC3, NULL);
vec3 u = luax_checkmathtype(L, 2, MATH_VEC3, NULL);
lua_pushnumber(L, vec3_dot(v, u));
return 1;
}
static int l_lovrVec3Cross(lua_State* L) {
vec3 v = luax_checkmathtype(L, 1, MATH_VEC3, NULL);
vec3 u = luax_checkmathtype(L, 2, MATH_VEC3, NULL);
vec3_cross(v, u);
lua_settop(L, 1);
return 1;
}
static int l_lovrVec3Lerp(lua_State* L) {
vec3 v = luax_checkmathtype(L, 1, MATH_VEC3, NULL);
vec3 u = luax_checkmathtype(L, 2, MATH_VEC3, NULL);
float t = luaL_checknumber(L, 3);
vec3_lerp(v, u, t);
lua_settop(L, 1);
return 1;
}
static int l_lovrVec3__add(lua_State* L) {
vec3 v = luax_checkmathtype(L, 1, MATH_VEC3, NULL);
vec3 u = luax_checkmathtype(L, 2, MATH_VEC3, NULL);
vec3 out = lovrPoolAllocate(lovrMathGetPool(), MATH_VEC3);
out[0] = v[0] + u[0], out[1] = v[1] + u[1], out[2] = v[2] + u[2];
luax_pushlightmathtype(L, out, MATH_VEC3);
return 1;
}
static int l_lovrVec3__sub(lua_State* L) {
vec3 v = luax_checkmathtype(L, 1, MATH_VEC3, NULL);
vec3 u = luax_checkmathtype(L, 2, MATH_VEC3, NULL);
vec3 out = lovrPoolAllocate(lovrMathGetPool(), MATH_VEC3);
out[0] = v[0] - u[0], out[1] = v[1] - u[1], out[2] = v[2] - u[2];
luax_pushlightmathtype(L, out, MATH_VEC3);
return 1;
}
static int l_lovrVec3__mul(lua_State* L) {
vec3 v = luax_checkmathtype(L, 1, MATH_VEC3, NULL);
vec3 out = lovrPoolAllocate(lovrMathGetPool(), MATH_VEC3);
if (lua_type(L, 2) == LUA_TNUMBER) {
vec3_scale(vec3_init(out, v), lua_tonumber(L, 2));
} else {
vec3 u = luax_checkmathtype(L, 2, MATH_VEC3, "vec3 or number");
out[0] = v[0] * u[0], out[1] = v[1] * u[1], out[2] = v[2] * u[2];
}
luax_pushlightmathtype(L, out, MATH_VEC3);
return 1;
}
static int l_lovrVec3__div(lua_State* L) {
vec3 v = luax_checkmathtype(L, 1, MATH_VEC3, NULL);
vec3 out = lovrPoolAllocate(lovrMathGetPool(), MATH_VEC3);
if (lua_type(L, 2) == LUA_TNUMBER) {
vec3_scale(vec3_init(out, v), 1 / lua_tonumber(L, 2));
} else {
vec3 u = luax_checkmathtype(L, 2, MATH_VEC3, "vec3 or number");
out[0] = v[0] / u[0], out[1] = v[1] / u[1], out[2] = v[2] / u[2];
}
luax_pushlightmathtype(L, out, MATH_VEC3);
return 1;
}
static int l_lovrVec3__unm(lua_State* L) {
vec3 v = luax_checkmathtype(L, 1, MATH_VEC3, NULL);
vec3 out = lovrPoolAllocate(lovrMathGetPool(), MATH_VEC3);
vec3_scale(vec3_init(out, v), -1.f);
luax_pushlightmathtype(L, out, MATH_VEC3);
return 1;
}
static int l_lovrVec3__len(lua_State* L) {
vec3 v = luax_checkmathtype(L, 1, MATH_VEC3, NULL);
lua_pushnumber(L, vec3_length(v));
return 1;
}
static int l_lovrVec3__tostring(lua_State* L) {
vec3 v = luax_checkmathtype(L, 1, MATH_VEC3, NULL);
lua_pushfstring(L, "(%f, %f, %f)", v[0], v[1], v[2]);
return 1;
}
const luaL_Reg lovrVec3[] = {
{ "unpack", l_lovrVec3Unpack },
{ "set", l_lovrVec3Set },
{ "copy", l_lovrVec3Copy },
{ "save", l_lovrVec3Save },
{ "normalize", l_lovrVec3Normalize },
{ "dot", l_lovrVec3Dot },
{ "cross", l_lovrVec3Cross },
{ "lerp", l_lovrVec3Lerp },
{ "__add", l_lovrVec3__add },
{ "__sub", l_lovrVec3__sub },
{ "__mul", l_lovrVec3__mul },
{ "__div", l_lovrVec3__div },
{ "__unm", l_lovrVec3__unm },
{ "__len", l_lovrVec3__len },
{ "__tostring", l_lovrVec3__tostring },
{ NULL, NULL }
};

2
src/audio/audio.c
View File

@ -171,7 +171,7 @@ void lovrAudioSetOrientation(float angle, float ax, float ay, float az) {
// Rotate the unit forward/up vectors by the quaternion derived from the specified angle/axis
float f[3] = { 0, 0, -1 };
float u[3] = { 0, 1, 0 };
quat_fromAngleAxis(state.orientation, angle, (float[3]) { ax, ay, az });
quat_fromAngleAxis(state.orientation, angle, ax, ay, az);
quat_rotate(state.orientation, f);
quat_rotate(state.orientation, u);

45
src/lib/math.c
View File

@ -1,4 +1,5 @@
#include "math.h"
#define _USE_MATH_DEFINES
#include <math.h>
#include <string.h>
#ifdef LOVR_USE_SSE
@ -74,13 +75,14 @@ quat quat_set(quat q, float x, float y, float z, float w) {
return q;
}
quat quat_fromAngleAxis(quat q, float angle, vec3 axis) {
vec3_normalize(axis);
quat quat_fromAngleAxis(quat q, float angle, float ax, float ay, float az) {
float length = sqrt(ax * ax + ay * ay + az * az);
length = length == 0. ? 1. : length;
float s = sin(angle * .5f);
float c = cos(angle * .5f);
q[0] = s * axis[0];
q[1] = s * axis[1];
q[2] = s * axis[2];
q[0] = s * ax / length;
q[1] = s * ay / length;
q[2] = s * az / length;
q[3] = c;
return q;
}
@ -103,6 +105,15 @@ quat quat_fromMat4(quat q, mat4 m) {
return q;
}
quat quat_mul(quat q, quat r) {
return quat_set(q,
q[0] * r[3] + q[3] * r[0] - q[1] * r[2] - q[2] * r[1],
q[1] * r[3] + q[3] * r[1] - q[2] * r[0] - q[0] * r[2],
q[2] * r[3] + q[3] * r[2] - q[0] * r[1] - q[1] * r[0],
q[3] * r[3] - q[0] * r[0] - q[1] * r[1] - q[2] * r[2]
);
}
quat quat_normalize(quat q) {
float len = quat_length(q);
if (len == 0) {
@ -185,6 +196,27 @@ void quat_getAngleAxis(quat q, float* angle, float* x, float* y, float* z) {
*z = q[2] * s;
}
quat quat_between(quat q, vec3 u, vec3 v) {
float dot = vec3_dot(u, v);
if (dot > .99999) {
q[0] = q[1] = q[2] = 0.f;
q[3] = 1.f;
return q;
} else if (dot < -.99999) {
float axis[3];
vec3_cross(vec3_set(axis, 1, 0, 0), u);
if (vec3_length(axis) < .00001) {
vec3_cross(vec3_set(axis, 0, 1, 0), u);
}
vec3_normalize(axis);
quat_fromAngleAxis(q, M_PI, axis[0], axis[1], axis[2]);
return q;
}
vec3_cross(vec3_init(q, u), v);
q[3] = 1 + dot;
return quat_normalize(q);
}
// mat4
mat4 mat4_set(mat4 m, mat4 n) {
@ -406,8 +438,7 @@ mat4 mat4_translate(mat4 m, float x, float y, float z) {
mat4 mat4_rotate(mat4 m, float angle, float x, float y, float z) {
float q[4];
float v[3];
quat_fromAngleAxis(q, angle, vec3_set(v, x, y, z));
quat_fromAngleAxis(q, angle, x, y, z);
return mat4_rotateQuat(m, q);
}

4
src/lib/math.h
View File

@ -18,13 +18,15 @@ vec3 vec3_lerp(vec3 v, vec3 u, float t);
// quat
quat quat_init(quat q, quat r);
quat quat_set(quat q, float x, float y, float z, float w);
quat quat_fromAngleAxis(quat q, float angle, vec3 axis);
quat quat_fromAngleAxis(quat q, float angle, float ax, float ay, float az);
quat quat_fromMat4(quat q, mat4 m);
quat quat_mul(quat q, quat r);
quat quat_normalize(quat q);
float quat_length(quat q);
quat quat_slerp(quat q, quat r, float t);
void quat_rotate(quat q, vec3 v);
void quat_getAngleAxis(quat q, float* angle, float* x, float* y, float* z);
quat quat_between(quat q, vec3 u, vec3 v);
// mat4
#define MAT4_IDENTITY { 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1 }

10
src/math/math.c
View File

@ -7,20 +7,26 @@
static MathState state;
bool lovrMathInit() {
bool lovrMathInit(size_t poolSize) {
if (state.initialized) return false;
state.pool = lovrPoolCreate(poolSize);
state.generator = lovrRandomGeneratorCreate();
Seed seed = { .b64 = (uint64_t) time(0) };
lovrRandomGeneratorSetSeed(state.generator, seed);
lovrRandomGeneratorSetSeed(state.generator, seed);
return state.initialized = true;
}
void lovrMathDestroy() {
if (!state.initialized) return;
lovrRelease(state.pool);
lovrRelease(state.generator);
memset(&state, 0, sizeof(MathState));
}
Pool* lovrMathGetPool() {
return state.pool;
}
RandomGenerator* lovrMathGetRandomGenerator() {
return state.generator;
}

5
src/math/math.h
View File

@ -1,3 +1,4 @@
#include "math/pool.h"
#include "math/randomGenerator.h"
#include "lib/math.h"
#include <stdbool.h>
@ -7,10 +8,12 @@
typedef struct {
bool initialized;
RandomGenerator* generator;
Pool* pool;
} MathState;
bool lovrMathInit();
bool lovrMathInit(size_t poolSize);
void lovrMathDestroy();
Pool* lovrMathGetPool();
RandomGenerator* lovrMathGetRandomGenerator();
void lovrMathOrientationToDirection(float angle, float ax, float ay, float az, vec3 v);
float lovrMathGammaToLinear(float x);

51
src/math/pool.c Normal file
View File

@ -0,0 +1,51 @@
#include "math/pool.h"
#include <stdlib.h>
static const size_t sizeOfMathType[] = {
[MATH_VEC3] = 4 * sizeof(float),
[MATH_QUAT] = 4 * sizeof(float),
[MATH_MAT4] = 16 * sizeof(float)
};
Pool* lovrPoolCreate(size_t size) {
Pool* pool = lovrAlloc(Pool, lovrPoolDestroy);
if (!pool) return NULL;
pool->size = size;
pool->data = calloc(1, size + POOL_ALIGN - 1);
pool->head = (uint8_t*) ALIGN((uint8_t*) pool->data + POOL_ALIGN - 1, POOL_ALIGN);
lovrAssert(pool->data, "Could not allocate Pool memory");
pool->usage = 0;
return pool;
}
void lovrPoolDestroy(void* ref) {
Pool* pool = ref;
free(pool->data);
free(pool);
}
float* lovrPoolAllocate(Pool* pool, MathType type) {
size_t size = sizeOfMathType[type];
if (pool->usage + size > pool->size) return NULL;
float* p = (float*) (pool->head + pool->usage);
pool->usage += size;
return p;
}
void lovrPoolDrain(Pool* pool) {
pool->usage = 0;
}
size_t lovrPoolGetSize(Pool* pool) {
return pool->size;
}
size_t lovrPoolGetUsage(Pool* pool) {
return pool->usage;
}
float* lovrPoolAllocateVec3(Pool* pool) { return lovrPoolAllocate(pool, MATH_VEC3); }
float* lovrPoolAllocateQuat(Pool* pool) { return lovrPoolAllocate(pool, MATH_QUAT); }
float* lovrPoolAllocateMat4(Pool* pool) { return lovrPoolAllocate(pool, MATH_MAT4); }

33
src/math/pool.h Normal file
View File

@ -0,0 +1,33 @@
#include "util.h"
#define POOL_ALIGN 16
#define DEFAULT_POOL_SIZE (640 * 1024)
#pragma once
typedef enum {
MATH_VEC3,
MATH_QUAT,
MATH_MAT4,
MAX_MATH_TYPES
} MathType;
typedef struct {
Ref ref;
float* data;
size_t size;
size_t usage;
uint8_t* head;
} Pool;
Pool* lovrPoolCreate(size_t size);
void lovrPoolDestroy(void* ref);
float* lovrPoolAllocate(Pool* pool, MathType type);
void lovrPoolDrain(Pool* pool);
size_t lovrPoolGetSize(Pool* pool);
size_t lovrPoolGetUsage(Pool* pool);
// For you, LuaJIT
float* lovrPoolNewVec3(Pool* pool);
float* lovrPoolNewQuat(Pool* pool);
float* lovrPoolNewMat4(Pool* pool);

6
src/physics/physics.c
View File

@ -531,8 +531,7 @@ void lovrColliderGetOrientation(Collider* collider, float* angle, float* x, floa
void lovrColliderSetOrientation(Collider* collider, float angle, float x, float y, float z) {
float quaternion[4];
float axis[3] = { x, y, z };
quat_fromAngleAxis(quaternion, angle, axis);
quat_fromAngleAxis(quaternion, angle, x, y, z);
float q[4] = { quaternion[3], quaternion[0], quaternion[1], quaternion[2] };
dBodySetQuaternion(collider->body, q);
}
@ -730,8 +729,7 @@ void lovrShapeGetOrientation(Shape* shape, float* angle, float* x, float* y, flo
void lovrShapeSetOrientation(Shape* shape, float angle, float x, float y, float z) {
float quaternion[4];
float axis[3] = { x, y, z };
quat_fromAngleAxis(quaternion, angle, axis);
quat_fromAngleAxis(quaternion, angle, x, y, z);
float q[4] = { quaternion[3], quaternion[0], quaternion[1], quaternion[2] };
dGeomSetOffsetQuaternion(shape->id, q);
}

4
src/resources/boot.lua
View File

@ -67,6 +67,9 @@ function lovr.boot()
offset = 1.7,
msaa = 4
},
math = {
poolsize = 640 * 1024
},
window = {
width = 1080,
height = 600,
@ -141,6 +144,7 @@ function lovr.run()
end
lovr.graphics.present()
end
if lovr.math then lovr.math.drain() end
end
end

542
src/resources/boot.lua.h
View File

@ -173,6 +173,10 @@ unsigned char boot_lua[] = {
0x20, 0x20, 0x20, 0x20, 0x6f, 0x66, 0x66, 0x73, 0x65, 0x74, 0x20, 0x3d,
0x20, 0x31, 0x2e, 0x37, 0x2c, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
0x6d, 0x73, 0x61, 0x61, 0x20, 0x3d, 0x20, 0x34, 0x0a, 0x20, 0x20, 0x20,
0x20, 0x7d, 0x2c, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x6d, 0x61, 0x74, 0x68,
0x20, 0x3d, 0x20, 0x7b, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x70,
0x6f, 0x6f, 0x6c, 0x73, 0x69, 0x7a, 0x65, 0x20, 0x3d, 0x20, 0x36, 0x34,
0x30, 0x20, 0x2a, 0x20, 0x31, 0x30, 0x32, 0x34, 0x0a, 0x20, 0x20, 0x20,
0x20, 0x7d, 0x2c, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x77, 0x69, 0x6e, 0x64,
0x6f, 0x77, 0x20, 0x3d, 0x20, 0x7b, 0x0a, 0x20, 0x20, 0x20, 0x20, 0x20,
0x20, 0x77, 0x69, 0x64, 0x74, 0x68, 0x20, 0x3d, 0x20, 0x31, 0x30, 0x38,
@ -350,275 +354,279 @@ unsigned char boot_lua[] = {
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};
unsigned int boot_lua_len = 7451;
unsigned int boot_lua_len = 7543;

2
src/util.h
View File

@ -12,6 +12,8 @@
#define MIN(a, b) (a < b ? a : b)
#define CLAMP(x, min, max) MAX(min, MIN(max, x))
#define ALIGN(p, n) ((uintptr_t) p & -n)
typedef struct ref {
int count;
const char* type;