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#include "glm_bindings.h"
int honey_glm_vec3_mt_ref = LUA_NOREF;
int honey_glm_vec4_mt_ref = LUA_NOREF;
int honey_glm_mat3_mt_ref = LUA_NOREF;
int honey_glm_mat4_mt_ref = LUA_NOREF;
void honey_setup_glm(lua_State* L)
{
/* vec3 metatable */
honey_lua_create_table
(L, 2,
HONEY_TABLE, "__index", 21,
HONEY_FUNCTION, "copyTo", honey_glm_vec3_copy,
HONEY_FUNCTION, "zero", honey_glm_vec3_zero,
HONEY_FUNCTION, "eye", honey_glm_vec3_eye,
HONEY_FUNCTION, "dot", honey_glm_vec3_dot,
HONEY_FUNCTION, "cross", honey_glm_vec3_cross,
HONEY_FUNCTION, "crossn", honey_glm_vec3_crossn,
HONEY_FUNCTION, "norm2", honey_glm_vec3_norm2,
HONEY_FUNCTION, "norm", honey_glm_vec3_norm,
HONEY_FUNCTION, "add", honey_glm_vec3_add,
HONEY_FUNCTION, "adds", honey_glm_vec3_adds,
HONEY_FUNCTION, "sub", honey_glm_vec3_sub,
HONEY_FUNCTION, "subs", honey_glm_vec3_subs,
HONEY_FUNCTION, "mul", honey_glm_vec3_mul,
HONEY_FUNCTION, "scale", honey_glm_vec3_scale,
HONEY_FUNCTION, "scaleAs", honey_glm_vec3_scale_as,
HONEY_FUNCTION, "div", honey_glm_vec3_div,
HONEY_FUNCTION, "negate", honey_glm_vec3_negate,
HONEY_FUNCTION, "normalize", honey_glm_vec3_normalize,
HONEY_FUNCTION, "angleTo", honey_glm_vec3_angle,
HONEY_FUNCTION, "clamp", honey_glm_vec3_clamp,
HONEY_FUNCTION, "lerpTo", honey_glm_vec3_lerp,
HONEY_FUNCTION, "__gc", honey_glm_array_destroy);
honey_glm_vec3_mt_ref = luaL_ref(L, LUA_REGISTRYINDEX);
/* vec4 metatable */
honey_lua_create_table
(L, 2,
HONEY_TABLE, "__index", 18,
HONEY_FUNCTION, "copyTo", honey_glm_vec4_copy,
HONEY_FUNCTION, "zero", honey_glm_vec4_zero,
HONEY_FUNCTION, "eye", honey_glm_vec4_eye,
HONEY_FUNCTION, "dot", honey_glm_vec4_dot,
HONEY_FUNCTION, "norm2", honey_glm_vec4_norm2,
HONEY_FUNCTION, "norm", honey_glm_vec4_norm,
HONEY_FUNCTION, "add", honey_glm_vec4_add,
HONEY_FUNCTION, "adds", honey_glm_vec4_adds,
HONEY_FUNCTION, "sub", honey_glm_vec4_sub,
HONEY_FUNCTION, "subs", honey_glm_vec4_subs,
HONEY_FUNCTION, "mul", honey_glm_vec4_mul,
HONEY_FUNCTION, "scale", honey_glm_vec4_scale,
HONEY_FUNCTION, "scaleAs", honey_glm_vec4_scale_as,
HONEY_FUNCTION, "div", honey_glm_vec4_div,
HONEY_FUNCTION, "negate", honey_glm_vec4_negate,
HONEY_FUNCTION, "normalize", honey_glm_vec4_normalize,
HONEY_FUNCTION, "clamp", honey_glm_vec4_clamp,
HONEY_FUNCTION, "lerpTo", honey_glm_vec4_lerp,
HONEY_FUNCTION, "__gc", honey_glm_array_destroy);
honey_glm_vec4_mt_ref = luaL_ref(L, LUA_REGISTRYINDEX);
/* mat3 metatable */
honey_lua_create_table
(L, 2,
HONEY_TABLE, "__index", 9,
HONEY_FUNCTION, "copyTo", honey_glm_mat3_copy,
HONEY_FUNCTION, "eye", honey_glm_mat3_eye,
HONEY_FUNCTION, "zero", honey_glm_mat3_zero,
HONEY_FUNCTION, "mul", honey_glm_mat3_mul,
HONEY_FUNCTION, "transpose", honey_glm_mat3_transpose,
HONEY_FUNCTION, "mulv", honey_glm_mat3_mulv,
HONEY_FUNCTION, "scale", honey_glm_mat3_scale,
HONEY_FUNCTION, "det", honey_glm_mat3_det,
HONEY_FUNCTION, "inv", honey_glm_mat3_inv,
HONEY_FUNCTION, "__gc", honey_glm_array_destroy);
honey_glm_mat3_mt_ref = luaL_ref(L, LUA_REGISTRYINDEX);
/* mat4 metatable */
honey_lua_create_table
(L, 2,
HONEY_TABLE, "__index", 21,
HONEY_FUNCTION, "copy", honey_glm_mat4_copy,
HONEY_FUNCTION, "eye", honey_glm_mat4_eye,
HONEY_FUNCTION, "zero", honey_glm_mat4_zero,
HONEY_FUNCTION, "mul", honey_glm_mat4_mul,
HONEY_FUNCTION, "transpose", honey_glm_mat4_transpose,
HONEY_FUNCTION, "mulv", honey_glm_mat4_mulv,
HONEY_FUNCTION, "scale", honey_glm_mat4_scale,
HONEY_FUNCTION, "det", honey_glm_mat4_det,
HONEY_FUNCTION, "inv", honey_glm_mat4_inv,
HONEY_FUNCTION, "translateX", honey_glm_translate_x,
HONEY_FUNCTION, "translateY", honey_glm_translate_y,
HONEY_FUNCTION, "translateZ", honey_glm_translate_z,
HONEY_FUNCTION, "scalev", honey_glm_scalev,
HONEY_FUNCTION, "rotateX", honey_glm_rotate_x,
HONEY_FUNCTION, "rotateY", honey_glm_rotate_y,
HONEY_FUNCTION, "rotateZ", honey_glm_rotate_z,
HONEY_FUNCTION, "rotate", honey_glm_rotate,
HONEY_FUNCTION, "perspective", honey_glm_perspective,
HONEY_FUNCTION, "perspectiveResize", honey_glm_perspective_resize,
HONEY_FUNCTION, "lookAt", honey_glm_lookat,
HONEY_FUNCTION, "look", honey_glm_look,
HONEY_FUNCTION, "__gc", honey_glm_array_destroy);
honey_glm_mat4_mt_ref = luaL_ref(L, LUA_REGISTRYINDEX);
/* glm table */
honey_lua_create_table
(L, 4,
HONEY_FUNCTION, "vec3", honey_glm_new_vec3,
HONEY_FUNCTION, "vec4", honey_glm_new_vec4,
HONEY_FUNCTION, "mat3", honey_glm_new_mat3,
HONEY_FUNCTION, "mat4", honey_glm_new_mat4);
lua_setfield(L, -2, "glm");
}
/*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*
* GLM Array Basic Functions
*
*~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
*/
static void setup_new_array(lua_State* L,
honey_glm_array* array,
honey_glm_array_type type)
{
unsigned int size;
switch(type) {
case VEC3:
size = 3;
break;
case VEC4:
size = 4;
break;
case MAT3:
size = 9;
break;
case MAT4:
size = 16;
break;
default:
honey_lua_throw_error(L,
"unknown array type: %d",
type);
break;
}
array->type = type;
array->size = size;
array->data = calloc(size, sizeof(float));
if (array->data == NULL)
honey_lua_throw_error(L,
"failed to allocate memory for array of type %d",
type);
}
/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
int honey_glm_new_vec3(lua_State* L)
{
honey_glm_array* vec3 = lua_newuserdata(L, sizeof(honey_glm_array));
setup_new_array(L, vec3, VEC3);
lua_rawgeti(L, LUA_REGISTRYINDEX, honey_glm_vec3_mt_ref);
lua_setmetatable(L, -2);
return 1;
}
int honey_glm_new_vec4(lua_State* L)
{
honey_glm_array* vec4 = lua_newuserdata(L, sizeof(honey_glm_array));
setup_new_array(L, vec4, VEC4);
lua_rawgeti(L, LUA_REGISTRYINDEX, honey_glm_vec4_mt_ref);
lua_setmetatable(L, -2);
return 1;
}
int honey_glm_new_mat3(lua_State* L)
{
honey_glm_array* mat3 = lua_newuserdata(L, sizeof(honey_glm_array));
setup_new_array(L, mat3, MAT3);
lua_rawgeti(L, LUA_REGISTRYINDEX, honey_glm_mat3_mt_ref);
lua_setmetatable(L, -2);
return 1;
}
int honey_glm_new_mat4(lua_State* L)
{
honey_glm_array* mat4 = lua_newuserdata(L, sizeof(honey_glm_array));
setup_new_array(L, mat4, MAT4);
lua_rawgeti(L, LUA_REGISTRYINDEX, honey_glm_mat4_mt_ref);
lua_setmetatable(L, -2);
return 1;
}
/* ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ */
int honey_glm_array_destroy(lua_State* L)
{
honey_glm_array* array;
honey_lua_parse_arguments(L, 1, 1, HONEY_USERDATA, &array);
free(array->data);
return 0;
}
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