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lovr
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Improve mat4:set; 

Ended up removing the diagonal variant, sorry holo.
This commit is contained in:
bjorn 2019-01-30 16:13:44 -08:00
parent 20c6ec816d
commit 0eb2789a2d
7 changed files with 415 additions and 309 deletions
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18
src/api/graphics.c
View File

@ -643,14 +643,14 @@ static int l_lovrGraphicsScale(lua_State* L) {
static int l_lovrGraphicsTransform(lua_State* L) {
float transform[16];
luax_readmat4(L, 1, transform, 3, NULL);
luax_readmat4(L, 1, transform, 3);
lovrGraphicsMatrixTransform(transform);
return 0;
}
static int l_lovrGraphicsSetProjection(lua_State* L) {
float transform[16];
luax_readmat4(L, 1, transform, 3, NULL);
luax_readmat4(L, 1, transform, 3);
lovrGraphicsSetProjection(transform);
return 0;
}
@ -755,7 +755,7 @@ static int l_lovrGraphicsPlane(lua_State* L) {
style = luaL_checkoption(L, 1, NULL, DrawStyles);
}
float transform[16];
luax_readmat4(L, 2, transform, 2, NULL);
luax_readmat4(L, 2, transform, 2);
lovrGraphicsPlane(style, material, transform);
return 0;
}
@ -769,7 +769,7 @@ static int luax_rectangularprism(lua_State* L, int scaleComponents) {
style = luaL_checkoption(L, 1, NULL, DrawStyles);
}
float transform[16];
luax_readmat4(L, 2, transform, scaleComponents, NULL);
luax_readmat4(L, 2, transform, scaleComponents);
lovrGraphicsBox(style, material, transform);
return 0;
}
@ -796,7 +796,7 @@ static int l_lovrGraphicsArc(lua_State* L) {
mode = luaL_checkoption(L, index++, NULL, ArcModes);
}
float transform[16];
index = luax_readmat4(L, index, transform, 1, NULL);
index = luax_readmat4(L, index, transform, 1);
float r1 = luax_optfloat(L, index++, 0.f);
float r2 = luax_optfloat(L, index++, 2.f * M_PI);
int segments = luaL_optinteger(L, index, 64) * (MIN(fabsf(r2 - r1), 2 * M_PI) / (2 * M_PI));
@ -813,7 +813,7 @@ static int l_lovrGraphicsCircle(lua_State* L) {
style = luaL_checkoption(L, 1, NULL, DrawStyles);
}
float transform[16];
int index = luax_readmat4(L, 2, transform, 1, NULL);
int index = luax_readmat4(L, 2, transform, 1);
int segments = luaL_optinteger(L, index, 32);
lovrGraphicsCircle(style, material, transform, segments);
return 0;
@ -823,7 +823,7 @@ static int l_lovrGraphicsCylinder(lua_State* L) {
float transform[16];
int index = 1;
Material* material = lua_isuserdata(L, index) ? luax_checktype(L, index++, Material) : NULL;
index = luax_readmat4(L, index, transform, 1, NULL);
index = luax_readmat4(L, index, transform, 1);
float r1 = luax_optfloat(L, index++, 1.f);
float r2 = luax_optfloat(L, index++, 1.f);
bool capped = lua_isnoneornil(L, index) ? true : lua_toboolean(L, index++);
@ -836,7 +836,7 @@ static int l_lovrGraphicsSphere(lua_State* L) {
float transform[16];
int index = 1;
Material* material = lua_isuserdata(L, index) ? luax_checktype(L, index++, Material) : NULL;
index = luax_readmat4(L, index, transform, 1, NULL);
index = luax_readmat4(L, index, transform, 1);
int segments = luaL_optinteger(L, index, 30);
lovrGraphicsSphere(material, transform, segments);
return 0;
@ -856,7 +856,7 @@ static int l_lovrGraphicsPrint(lua_State* L) {
size_t length;
const char* str = luaL_checklstring(L, 1, &length);
float transform[16];
int index = luax_readmat4(L, 2, transform, 1, NULL);
int index = luax_readmat4(L, 2, transform, 1);
float wrap = luax_optfloat(L, index++, 0.f);
HorizontalAlign halign = luaL_checkoption(L, index++, "center", HorizontalAligns);
VerticalAlign valign = luaL_checkoption(L, index++, "middle", VerticalAligns);

2
src/api/math.h
View File

@ -8,7 +8,7 @@ float* luax_checkmathtype(lua_State* L, int index, MathType type, const char* ex
int luax_readvec3(lua_State* L, int index, vec3 v, const char* expected);
int luax_readscale(lua_State* L, int index, vec3 v, int components, const char* expected);
int luax_readquat(lua_State* L, int index, quat q, const char* expected);
int luax_readmat4(lua_State* L, int index, mat4 m, int scaleComponents, const char* expected);
int luax_readmat4(lua_State* L, int index, mat4 m, int scaleComponents);
Seed luax_checkrandomseed(lua_State* L, int index);
int l_lovrRandomGeneratorRandom(lua_State* L);
int l_lovrRandomGeneratorRandomNormal(lua_State* L);

62
src/api/math.lua
View File

@ -349,19 +349,57 @@ ffi.metatype(mat4, {
m.m[12], m.m[13], m.m[14], m.m[15]
end,
set = function(m, x, ...)
checkmat4(m)
if not x then
m:identity()
elseif not ... and type(x) == 'number' then
m.m[0], m.m[5], m.m[10], m.m[15] = x, x, x, x
elseif ... 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] = x, ...
set = function(M, ...)
checkmat4(M)
if ... == nil then
return C.mat4_identity(M)
end
return m
if select('#', ...) >= 16 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] = ...
return M
end
if istype(mat4, ...) then
return C.mat4_set(M, ...)
end
local i = 1
C.mat4_identity(M)
-- Position
local x, y, z = ...
if istype(vec3, x) then
M.m[12], M.m[13], M.m[14] = x.x, x.y, x.z
i = i + 1
else
assert(type(x) == 'number' and type(y) == 'number' and type(z) == 'number', 'Expected position as 3 numbers or a vec3')
M.m[12], M.m[13], M.m[14] = x, y, z
i = i + 3
end
-- Scale
local sx, sy, sz = select(i, ...)
if istype(vec3, sx) then
sx, sy, sz = sx.x, sx.y, sx.z
i = i + 1
else
i = i + 3
end
-- Rotate
local angle, ax, ay, az = select(i, ...)
if istype(quat, angle) then
C.mat4_rotateQuat(M, angle)
else
C.mat4_rotate(M, angle, ax, ay, az)
end
return C.mat4_scale(M, sx, sy, sz)
end,
save = function(m)

622
src/api/math.lua.h
View File

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};
unsigned int math_lua_len = 12667;
unsigned int math_lua_len = 13512;

16
src/api/types/mat4.c
View File

@ -3,7 +3,7 @@
#include "math/math.h"
#include "lib/math.h"
int luax_readmat4(lua_State* L, int index, mat4 m, int scaleComponents, const char* expected) {
int luax_readmat4(lua_State* L, int index, mat4 m, int scaleComponents) {
switch (lua_type(L, index)) {
case LUA_TNIL:
case LUA_TNONE:
@ -45,14 +45,12 @@ static int l_lovrMat4Unpack(lua_State* L) {
int l_lovrMat4Set(lua_State* L) {
mat4 m = luax_checkmathtype(L, 1, MATH_MAT4, NULL);
switch (lua_gettop(L)) {
case 1: mat4_identity(m); break;
case 2: m[0] = m[5] = m[10] = m[15] = luax_checkfloat(L, 2); break;
default:
for (int i = 0; i < 16; i++) {
m[i] = luax_checkfloat(L, i + 2);
}
break;
if (lua_gettop(L) >= 17) {
for (int i = 2; i <= 17; i++) {
*m++ = luaL_checknumber(L, i);
}
} else {
luax_readmat4(L, 2, m, 3);
}
lua_settop(L, 1);
return 1;

2
src/api/types/mesh.c
View File

@ -74,7 +74,7 @@ int l_lovrMeshDetachAttributes(lua_State* L) {
int l_lovrMeshDraw(lua_State* L) {
Mesh* mesh = luax_checktype(L, 1, Mesh);
float transform[16];
int index = luax_readmat4(L, 2, transform, 1, NULL);
int index = luax_readmat4(L, 2, transform, 1);
int instances = luaL_optinteger(L, index, 1);
uint32_t vertexCount = lovrMeshGetVertexCount(mesh);
uint32_t indexCount = lovrMeshGetIndexCount(mesh);

2
src/api/types/model.c
View File

@ -5,7 +5,7 @@
int l_lovrModelDraw(lua_State* L) {
Model* model = luax_checktype(L, 1, Model);
float transform[16];
int index = luax_readmat4(L, 2, transform, 1, NULL);
int index = luax_readmat4(L, 2, transform, 1);
int instances = luaL_optinteger(L, index, 1);
lovrModelDraw(model, transform, instances);
return 0;