-#include <stdio.h>
-#include <unistd.h>
-#include <endian.h/endian.h>
-#include <poll.h>
#include "number.h"
-bool read_full(int fd, char *buffer, size_t size)
-{
- size_t n_read_total = 0;
- int n_read;
- while (n_read_total < size) {
- if ((n_read = read(fd, buffer + n_read_total, size - n_read_total)) == -1) {
- perror("read");
- return false;
- }
- n_read_total += n_read;
- }
- return true;
-}
-
-#define htobe8(x) x
-#define be8toh(x) x
-
-#define READVEC(type, n) \
- type buf[n]; \
- for (int i = 0; i < n; i++) { \
- if (! read_ ## type(fd, &buf[i])) \
- return false; \
+#define DEFINE_CLAMP(scalar) \
+ scalar scalar ## _clamp(scalar v, scalar min, scalar max) \
+ { \
+ return v < min ? min : v > max ? max : v; \
}
-#define WRITEVEC(type, n) \
- for (int i = 0; i < n; i++) { \
- if (! write_ ## type(fd, vec[i])) \
- return false; \
- } \
- return true;
-
-#define DEFVEC(type) \
- bool read_v2 ## type(int fd, v2 ## type *ptr) \
- { \
- READVEC(type, 2) \
- ptr->x = buf[0]; \
- ptr->y = buf[1]; \
- return true; \
- } \
- bool write_v2 ## type(int fd, v2 ## type val) \
- { \
- type vec[2] = {val.x, val.y}; \
- WRITEVEC(type, 2) \
- } \
- bool v2 ## type ## _equals(v2 ## type a, v2 ## type b) \
+#define DEFINE_VECTOR2(vector, clamp) \
+ bool vector ## _equals(vector a, vector b) \
{ \
return a.x == b.x && a.y == b.y; \
} \
- v2 ## type v2 ## type ## _add(v2 ## type a, v2 ## type b) \
+ vector vector ## _add(vector a, vector b) \
{ \
- return (v2 ## type) {a.x + b.x, a.y + b.y}; \
+ return (vector) {a.x + b.x, a.y + b.y}; \
} \
- bool read_v3 ## type(int fd, v3 ## type *ptr) \
+ vector vector ## _clamp(vector v, vector min, vector max) \
{ \
- READVEC(type, 3) \
- ptr->x = buf[0]; \
- ptr->y = buf[1]; \
- ptr->z = buf[2]; \
- return true; \
- } \
- bool write_v3 ## type(int fd, v3 ## type val) \
- { \
- type vec[3] = {val.x, val.y, val.z}; \
- WRITEVEC(type, 3) \
- } \
- bool v3 ## type ## _equals(v3 ## type a, v3 ## type b) \
+ return (vector) {clamp(v.x, min.x, max.x), clamp(v.y, min.y, max.y)}; \
+ }
+
+#define DEFINE_VECTOR3(vector, clamp) \
+ bool vector ## _equals(vector a, vector b) \
{ \
return a.x == b.x && a.y == b.y && a.z == b.z; \
} \
- v3 ## type v3 ## type ## _add(v3 ## type a, v3 ## type b) \
+ vector vector ## _add(vector a, vector b) \
{ \
- return (v3 ## type) {a.x + b.x, a.y + b.y, a.z + b.z}; \
+ return (vector) {a.x + b.x, a.y + b.y, a.z + b.z}; \
} \
- bool read_v4 ## type(int fd, v4 ## type *ptr) \
+ vector vector ## _clamp(vector v, vector min, vector max) \
{ \
- READVEC(type, 4) \
- ptr->x = buf[0]; \
- ptr->y = buf[1]; \
- ptr->z = buf[2]; \
- ptr->w = buf[3]; \
- return true; \
- } \
- bool write_v4 ## type(int fd, v4 ## type val) \
+ return (vector) {clamp(v.x, min.x, max.x), clamp(v.y, min.y, max.y), clamp(v.z, min.z, max.z)}; \
+ }
+
+#define DEFINE_VECTOR4(vector, clamp) \
+ bool vector ## _equals(vector a, vector b) \
{ \
- type vec[4] = {val.x, val.y, val.z, val.w}; \
- WRITEVEC(type, 4) \
+ return a.x == b.x && a.y == b.y && a.z == b.z && a.w == b.w; \
} \
- bool v4 ## type ## _equals(v4 ## type a, v4 ## type b) \
+ vector vector ## _add(vector a, vector b) \
{ \
- return a.x == b.x && a.y == b.y && a.z == b.z && a.w == b.w; \
+ return (vector) {a.x + b.x, a.y + b.y, a.z + b.z, a.w + b.w}; \
} \
- v4 ## type v4 ## type ## _add(v4 ## type a, v4 ## type b) \
+ vector vector ## _clamp(vector v, vector min, vector max) \
{ \
- return (v4 ## type) {a.x + b.x, a.y + b.y, a.z + b.z, a.w + b.w}; \
+ return (vector) {clamp(v.x, min.x, max.x), clamp(v.y, min.y, max.y), clamp(v.z, min.z, max.z), clamp(v.w, min.w, max.w)}; \
}
-#define DEFTYP(type, bits) \
- bool read_ ## type(int fd, type *buf) \
- { \
- u ## bits encoded; \
- if (! read_full(fd, (char *) &encoded, sizeof(type))) \
- return false; \
- *buf = be ## bits ## toh(encoded); \
- return true; \
- } \
- bool write_ ## type(int fd, type val) \
- { \
- u ## bits encoded = htobe ## bits(val); \
- if (write(fd, &encoded, sizeof(encoded)) == -1) { \
- perror("write"); \
- return false; \
- } \
- return true; \
- } \
- DEFVEC(type)
+#define DEFINE_SCALAR(scalar) \
+ DEFINE_CLAMP(scalar) \
+ DEFINE_VECTOR2(v2 ## scalar, scalar ## _clamp) \
+ DEFINE_VECTOR3(v3 ## scalar, scalar ## _clamp) \
+ DEFINE_VECTOR4(v4 ## scalar, scalar ## _clamp)
-#define DEFTYPES(bits) \
- DEFTYP(s ## bits, bits) \
- DEFTYP(u ## bits, bits)
+#define DEFINE_INTEGER(bits) \
+ DEFINE_SCALAR(s ## bits) \
+ DEFINE_SCALAR(u ## bits)
-DEFTYPES(8)
-DEFTYPES(16)
-DEFTYPES(32)
-DEFTYPES(64)
+#define DEFINE_MIX_VECTOR2(vector, scalar, mix) \
+ vector vector ## _mix(vector a, vector b, scalar f) \
+ { \
+ return (vector) {mix(a.x, b.x, f), mix(a.y, b.y, f)}; \
+ }
-#define DEFFLOAT(type) \
- bool read_ ## type(int fd, type *buf) \
+#define DEFINE_MIX_VECTOR3(vector, scalar, mix) \
+ vector vector ## _mix(vector a, vector b, scalar f) \
{ \
- if (! read_full(fd, (char *) buf, sizeof(type))) \
- return false; \
- return true; \
- } \
- bool write_ ## type(int fd, type val) \
+ return (vector) {mix(a.x, b.x, f), mix(a.y, b.y, f), mix(a.z, b.z, f)}; \
+ }
+
+#define DEFINE_MIX_VECTOR4(vector, scalar, mix) \
+ vector vector ## _mix(vector a, vector b, scalar f) \
{ \
- if (write(fd, &val, sizeof(val)) == -1) { \
- perror("write"); \
- return false; \
- } \
- return true; \
- } \
- DEFVEC(type) \
+ return (vector) {mix(a.x, b.x, f), mix(a.y, b.y, f), mix(a.z, b.z, f), mix(a.w, b.w, f)}; \
+ }
+
+#define DEFINE_FLOAT(type) \
+ DEFINE_SCALAR(type) \
type type ## _mix(type a, type b, type f) \
{ \
return (1.0 - f) * a + b * f; \
} \
- v2 ## type v2 ## type ## _mix(v2 ## type a, v2 ## type b, type f) \
- { \
- return (v2 ## type) {type ## _mix(a.x, b.x, f), type ## _mix(a.y, b.y, f)}; \
- } \
- v3 ## type v3 ## type ## _mix(v3 ## type a, v3 ## type b, type f) \
- { \
- return (v3 ## type) {type ## _mix(a.x, b.x, f), type ## _mix(a.y, b.y, f), type ## _mix(a.z, b.z, f)}; \
- } \
- v4 ## type v4 ## type ## _mix(v4 ## type a, v4 ## type b, type f) \
- { \
- return (v4 ## type) {type ## _mix(a.x, b.x, f), type ## _mix(a.y, b.y, f), type ## _mix(a.z, b.z, f), type ## _mix(a.w, b.w, f)}; \
- }
+ DEFINE_MIX_VECTOR2(v2 ## type, type, type ## _mix) \
+ DEFINE_MIX_VECTOR3(v3 ## type, type, type ## _mix) \
+ DEFINE_MIX_VECTOR4(v4 ## type, type, type ## _mix)
+
+DEFINE_INTEGER(8)
+DEFINE_INTEGER(16)
+DEFINE_INTEGER(32)
+DEFINE_INTEGER(64)
-DEFFLOAT(f32)
-DEFFLOAT(f64)
+DEFINE_FLOAT(f32)
+DEFINE_FLOAT(f64)
projects / dragonstd.git / blobdiff