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Update plex example, use lib instead of static header

This commit is contained in:
zongor 2026-04-15 16:28:45 -07:00
parent e802fc3779
commit ecc69ea144
3 changed files with 555 additions and 104 deletions
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35
emit/c99/libundar.c
View File

@ -92,7 +92,7 @@ struct list_s {
};
typedef bool (*compare_fn)(void *data, void *target);
typedef void (*list_iter_fn)(void *data);
typedef bool (*list_iter_fn)(void *data);
void
mcpy(void *to, void *from, u32 length)
@ -218,9 +218,9 @@ float_to_real(f32 f)
return FLOAT_TO_REAL(f);
}
f32
real_tor32oat(r32 f)
real_to_float(r32 r)
{
return REAL_TO_FLOAT(f);
return REAL_TO_FLOAT(r);
}
r32
real_add(r32 a, r32 b)
@ -250,7 +250,6 @@ real_mul(r32 a, r32 b)
return result;
}
r32
real_div(r32 a, r32 b)
{
@ -267,7 +266,6 @@ real_div(r32 a, r32 b)
return result;
}
r32
real_eq(r32 a, r32 b)
{
@ -331,8 +329,8 @@ amcpy(Arena *arena, void *from, u32 length)
return ptr;
}
void
int_to_string(i32 v, char *str)
char*
int_to_string(Arena *arena, i32 v)
{
char buffer[MAX_LEN_INT32];
i32 n;
@ -351,11 +349,11 @@ int_to_string(i32 v, char *str)
/* Ensure at least one digit is written for 0 */
if(v == 0) buffer[--i] = '0';
scpy(str, buffer + i, MAX_LEN_INT32 - i);
return (char*)amcpy(arena, buffer + i, MAX_LEN_INT32 - i);
}
void
nat_to_string(u32 v, char *str)
char*
nat_to_string(Arena *arena, u32 v)
{
char buffer[MAX_LEN_INT32];
u32 n;
@ -369,11 +367,11 @@ nat_to_string(u32 v, char *str)
/* Ensure at least one digit is written for 0 */
if(v == 0) buffer[--i] = '0';
scpy(str, buffer + i, MAX_LEN_INT32 - i);
return (char*)amcpy(arena, buffer + i, MAX_LEN_INT32 - i);
}
void
real_to_string(r32 q, char *str)
char*
real_to_string(Arena *arena, r32 q)
{
char buffer[MAX_LEN_REAL32];
bool neg;
@ -404,13 +402,13 @@ real_to_string(r32 q, char *str)
if(neg) buffer[--i] = '-';
scpy(str, buffer + i, MAX_LEN_REAL32 - i);
return (char*)amcpy(arena, buffer + i, MAX_LEN_REAL32 - i);
}
List *
new_list(Arena *arena)
{
List *l = aalloc(arena, sizeof(List));
List *l = (List*)aalloc(arena, sizeof(List));
if (!l) return nil;
l->head = nil;
@ -455,14 +453,14 @@ list_push(Arena *arena, List *list, void *data, u32 data_size)
}
void
list_foreach(List *list, list_iter_fn func)
list_map(List *list, list_iter_fn func)
{
Node *curr;
if (!list || !func) return;
curr = list->head;
while (curr) {
func(node_value(curr));
if (!func(node_value(curr))) break;
curr = curr->next;
}
}
@ -486,9 +484,8 @@ void
list_set(List *list, u32 index, void *data, u32 size)
{
void *target = list_get(list, index);
if (target) {
if (!target) return;
mcpy(target, data, size);
}
}
void *

577
test/plex.c
View File

@ -1,14 +1,522 @@
#if defined(__has_include)
#if __has_include(<stdint.h>)
#define HAVE_STDINT 1
#endif
#if __has_include(<stdbool.h>)
#define HAVE_STDBOOL 1
#endif
#if __has_include(<stddef.h>)
#define HAVE_STDDEF 1
#endif
#endif
#include "undar.h"
#ifdef HAVE_STDINT
#include <stdint.h>
typedef uint8_t u8;
typedef int8_t i8;
typedef uint16_t u16;
typedef int16_t i16;
typedef uint32_t u32;
typedef int32_t i32;
typedef int32_t r32;
typedef float f32;
#else
typedef unsigned char u8;
typedef signed char i8;
typedef unsigned short u16;
typedef signed short i16;
typedef unsigned int u32;
typedef signed int i32;
typedef signed int r32;
typedef float f32;
#endif
#ifdef HAVE_STDBOOL
#include <stdbool.h>
#else
#define true 1
#define false 0
typedef u8 bool;
#endif
#ifdef HAVE_STDDEF
#include <stddef.h>
#define nil NULL
#else
#define nil ((void *)0)
#endif
#define I8_MIN -128
#define I8_MAX 127
#define U8_MAX 255
#define I16_MIN -32768
#define I16_MAX 32767
#define U16_MAX 65535
#define I32_MIN -2147483648
#define I32_MAX 2147483647
#define U32_MAX 4294967295
#define FIXED_CONST 65536.0f
#define AS_INT(v) ((i32)(v))
#define AS_NAT(v) ((u32)(v))
#define AS_REAL(v) ((r32)(v))
#define FLOAT_TO_REAL(v) (((r32)(v)) * FIXED_CONST)
#define REAL_TO_FLOAT(v) (((f32)(v)) / FIXED_CONST)
#define USED(x) ((void)(x))
#define MAX_LEN_REAL32 12
#define MAX_LEN_INT32 11
const char radix_set[11] = "0123456789";
typedef struct arena_s Arena;
struct arena_s {
u8 *tape;
u32 count;
u32 capacity;
};
typedef struct node_s Node;
struct node_s {
struct node_s *next;
};
typedef struct list_s List;
struct list_s {
Node *head;
Node *tail;
u32 count;
};
typedef bool (*compare_fn)(void *data, void *target);
typedef bool (*list_iter_fn)(void *data);
static inline void
mcpy(void *to, void *from, u32 length)
{
u8 *src, *dest;
if(to == nil || from == nil) return;
src = (u8 *)from;
dest = (u8 *)to;
while(length-- > 0) *(dest++) = *(src++);
return;
}
static inline i32
scpy(char *to, const char *from, u32 length)
{
u32 i;
if(to == nil || from == nil) return -1;
if(length == 0) return 0;
for(i = 0; i < length && from[i] != '\0'; i++) to[i] = from[i];
to[i] = '\0';
return 0;
}
static inline bool
seq(const char *s1, const char *s2)
{
if(s1 == nil && s2 == nil) return true;
if(s1 == nil || s2 == nil) return false;
while(*s1 && *s2) {
if(*s1 != *s2) return false;
s1++;
s2++;
}
return (*s1 == '\0' && *s2 == '\0');
}
static inline bool
sleq(const char *s1, const char *s2, u32 length)
{
u32 i;
if(s1 == nil && s2 == nil) return true;
if(s1 == nil || s2 == nil) return false;
i = 0;
while(i < length && *s1 && *s2) {
if(*s1 != *s2) return false;
s1++;
s2++;
i++;
}
if(i == length) return true;
return (*s1 == '\0' && *s2 == '\0');
}
static inline u32
slen(const char *str)
{
u32 i;
if(str == nil) return 0;
for(i = 0; str[i] != '\0'; i++);
return i;
}
static inline u32
snlen(const char *str, u32 max_len)
{
u32 i;
if(str == nil) return 0;
for(i = 0; i < max_len && str[i] != '\0'; i++);
return i;
}
static inline void *
aalloc(Arena *arena, u32 size)
{
u32 pos;
if(arena == nil) return nil;
if(arena->count + size > arena->capacity) return nil;
pos = arena->count;
arena->count += size;
return (void *)&arena->tape[pos];
}
static inline void *
areturn(Arena *arena, u32 checkpoint, const void *src, u32 size)
{
void *dest;
if(arena == nil || src == nil) return nil;
dest = (void *)&arena->tape[checkpoint];
if(src == dest) return dest;
mcpy(dest, (void *)src, size);
arena->count = checkpoint + size;
return dest;
}
#define ARENA_RETURN(arena, ckpt, src_ptr, type) \
return (type *)areturn((arena), (ckpt), (src_ptr), sizeof(type))
#define ARENA_RETURN_ARRAY(arena, ckpt, src_ptr, type, count) \
return (type *)areturn((arena), (ckpt), (src_ptr), sizeof(type) * (count))
static inline r32
int_to_real(i32 i)
{
return i << 16;
}
static inline i32
real_to_int(r32 f)
{
return f >> 16;
}
static inline r32
float_to_real(f32 f)
{
return FLOAT_TO_REAL(f);
}
static inline f32
real_to_float(r32 r)
{
return REAL_TO_FLOAT(r);
}
static inline r32
real_add(r32 a, r32 b)
{
return a + b;
}
static inline r32
real_sub(r32 a, r32 b)
{
return a - b;
}
static inline r32
real_mul(r32 a, r32 b)
{
r32 src1_whole = (r32)a >> 16;
r32 src2_whole = (r32)b >> 16;
r32 src1_decimal = (r32)a & 16;
r32 src2_decimal = (r32)b & 16;
r32 result = 0;
result += (src1_whole * src2_whole) << 16;
result += (src1_whole * src2_decimal);
result += (src1_decimal * src2_whole);
result += ((src1_decimal * src2_decimal) >> 16) & 16;
return result;
}
static inline r32
real_div(r32 a, r32 b)
{
r32 result;
r32 src1_val = (r32)a;
r32 src2_val = (r32)b;
u32 src2_reciprocal = 1;
src2_reciprocal <<= 31;
src2_reciprocal = (u32)(src2_reciprocal / src2_val);
result = src1_val * src2_reciprocal;
result <<= 1;
return result;
}
static inline r32
real_eq(r32 a, r32 b)
{
return a == b;
}
static inline r32
real_ne(r32 a, r32 b)
{
return a != b;
}
static inline r32
real_lt(r32 a, r32 b)
{
return a < b;
}
static inline r32
real_le(r32 a, r32 b)
{
return a <= b;
}
static inline r32
real_gt(r32 a, r32 b)
{
return a > b;
}
static inline r32
real_ge(r32 a, r32 b)
{
return a >= b;
}
static inline r32
real_neg(r32 f)
{
return -f;
}
static inline r32
real_abs(r32 f)
{
return (f < 0) ? -f : f;
}
static inline char *
ascpy(Arena *arena, const char *start, u32 length)
{
char *str;
if(!start) return nil;
str = (char *)aalloc(arena, length + 1);
if(!str) return nil;
scpy(str, start, length);
return str;
}
static inline void *
amcpy(Arena *arena, void *from, u32 length)
{
void *ptr;
if(!from) return nil;
ptr = aalloc(arena, length);
if(!ptr) return nil;
mcpy(ptr, from, length);
return ptr;
}
static inline char*
int_to_string(Arena *arena, i32 v)
{
char buffer[MAX_LEN_INT32];
i32 n;
u32 i = MAX_LEN_INT32;
bool neg;
n = v;
neg = n < 0;
if(neg) n = -n;
do {
buffer[--i] = radix_set[n % 10];
n /= 10;
} while(n > 0);
if(neg) buffer[--i] = '-';
/* Ensure at least one digit is written for 0 */
if(v == 0) buffer[--i] = '0';
return (char*)amcpy(arena, buffer + i, MAX_LEN_INT32 - i);
}
static inline char*
nat_to_string(Arena *arena, u32 v)
{
char buffer[MAX_LEN_INT32];
u32 n;
u32 i = MAX_LEN_INT32;
n = v;
do {
buffer[--i] = radix_set[n % 10];
n /= 10;
} while(n > 0);
/* Ensure at least one digit is written for 0 */
if(v == 0) buffer[--i] = '0';
return (char*)amcpy(arena, buffer + i, MAX_LEN_INT32 - i);
}
static inline char*
real_to_string(Arena *arena, r32 q)
{
char buffer[MAX_LEN_REAL32];
bool neg;
i32 int_part;
u32 frac_part;
u32 i = MAX_LEN_REAL32;
if(q < 0) q = -q;
int_part = q >> 16;
frac_part = q & 0xFFFF;
do {
buffer[--i] = radix_set[frac_part % 10];
frac_part /= 10;
} while(frac_part > 0);
buffer[--i] = '.';
neg = int_part < 0;
if(neg) int_part = -int_part;
do {
buffer[--i] = radix_set[int_part % 10];
int_part /= 10;
} while(int_part > 0);
if(neg) buffer[--i] = '-';
return (char*)amcpy(arena, buffer + i, MAX_LEN_REAL32 - i);
}
static inline List *
new_list(Arena *arena)
{
List *l = (List*)aalloc(arena, sizeof(List));
if (!l) return nil;
l->head = nil;
l->tail = nil;
l->count = 0;
return l;
}
static inline void *
node_value(Node *n)
{
return (void *)((u8 *)n + sizeof(Node));
}
static inline void *
list_push(Arena *arena, List *list, void *data, u32 data_size)
{
void *dest;
void *ptr = aalloc(arena, sizeof(Node) + data_size);
Node *node = (Node *)ptr;
if (!node) return nil;
node->next = nil;
if (!list->head) {
list->head = list->tail = node;
} else {
list->tail->next = node;
list->tail = node;
}
list->count++;
dest = node_value(node);
if (data && data_size > 0) {
mcpy(dest, data, data_size);
}
return dest;
}
static inline void
list_map(List *list, list_iter_fn func)
{
Node *curr;
if (!list || !func) return;
curr = list->head;
while (curr) {
if (!func(node_value(curr))) break;
curr = curr->next;
}
}
static inline void *
list_get(List *list, u32 index)
{
u32 i;
Node *curr;
if (!list || index >= list->count) return nil;
curr = list->head;
for (i = 0; i < index; i++) {
curr = curr->next;
}
return node_value(curr);
}
static inline void
list_set(List *list, u32 index, void *data, u32 size)
{
void *target = list_get(list, index);
if (!target) return;
mcpy(target, data, size);
}
static inline void *
list_find(List *list, compare_fn compare, void *target)
{
Node *curr;
void *data;
if (!list || !compare) return nil;
curr = list->head;
while (curr) {
data = node_value(curr);
if (compare(data, target)) {
return data;
}
curr = curr->next;
}
return nil;
}
#include <stdio.h>
typedef struct Point Point;
struct Point {
unsigned int x;
unsigned int y;
u32 x;
u32 y;
};
Point *
Point_new(Arena *a, unsigned int x, unsigned int y)
Point_init(Arena *a, u32 x, u32 y)
{
Point *this = (Point *)aalloc(a, sizeof(Point));
this->x = x;
@ -19,30 +527,28 @@ Point_new(Arena *a, unsigned int x, unsigned int y)
char*
Point_toS(Arena *a, Point *this)
{
unsigned int ckpt = a->count;
char *s = (char*)&a->tape[a->count];
int len = sprintf(s, "[x:%d, y:%d]",
this->x,
this->y);
s[len] = '\0';
a->count += len + 1;
ARENA_RETURN_ARRAY(a, ckpt, s, char, len + 1);
char *s = (char*)amcpy(a, "[x:", 3);
nat_to_string(a, this->x);
amcpy(a, ", y:", 4);
nat_to_string(a, this->y);
amcpy(a, "]", 1);
return s;
}
typedef struct Rect Rect;
struct Rect {
Point top_left;
Point bottom_right;
unsigned int width;
unsigned int height;
u32 width;
u32 height;
};
Rect *
Rect_new(Arena *a, Point *tl, Point *br, unsigned int width, unsigned int height)
Rect_init(Arena *a, Point *tl, Point *br, u32 width, u32 height)
{
Rect *this = (Rect *)aalloc(a, sizeof(Rect));
memcpy(&this->top_left, tl, sizeof(Point));
memcpy(&this->bottom_right, br, sizeof(Point));
mcpy(&this->top_left, tl, sizeof(Point));
mcpy(&this->bottom_right, br, sizeof(Point));
this->width = width;
this->height = height;
return this;
@ -51,35 +557,28 @@ Rect_new(Arena *a, Point *tl, Point *br, unsigned int width, unsigned int height
char*
Rect_toS(Arena *a, Rect *this)
{
unsigned int ckpt = a->count;
char *s1 = Point_toS(a, &this->top_left);
char *s2 = Point_toS(a, &this->bottom_right);
char *s = (char*)&a->tape[a->count];
int len = sprintf(s, "[top_left: %s, bottom_right: %s, width:%d, height:%d]",
s1,
s2,
this->width,
this->height);
s[len] = '\0';
a->count += len + 1;
ARENA_RETURN_ARRAY(a, ckpt, s, char, len + 1);
char *s = (char*)amcpy(a, "[top_left: ", 11);
Point_toS(a, &this->top_left);
amcpy(a,", bottom_right: ", 16);
Point_toS(a, &this->bottom_right);
amcpy(a, ", width:", 8);
nat_to_string(a, this->width);
amcpy(a, ", height:", 9);
nat_to_string(a, this->height);
amcpy(a, "]", 1);
return s;
}
Rect *
create_geometry(Arena *a)
{
unsigned int ckpt = a->count;
Rect *final_rect;
Point *temp_tl;
Point *temp_br;
u32 __UNDAR_FN_CHECKPOINT_REF__ = a->count;
temp_tl = Point_new(a, 10, 20);
temp_br = Point_new(a, 100, 200);
Point *tl = Point_init(a, 10, 20);
Point *br = Point_init(a, 100, 200);
Rect *final_rect = Rect_init(a, tl, br, 90, 180);
final_rect = Rect_new(a, temp_tl, temp_br, 90, 180);
ARENA_RETURN(a, ckpt, final_rect, Rect);
ARENA_RETURN(a, __UNDAR_FN_CHECKPOINT_REF__, final_rect, Rect);
}
int main() {

45
test/undar.h
View File

@ -1,45 +0,0 @@
#ifndef UNDAR_H
#define UNDAR_H
#include <stdio.h>
#include <string.h>
typedef struct arena_s Arena;
struct arena_s {
unsigned char *tape;
unsigned int count;
unsigned int capacity;
};
static void *aalloc(Arena *arena, unsigned int size){
unsigned int pos;
if(arena == NULL) return NULL;
if(arena->count + size > arena->capacity) return NULL;
pos = arena->count;
arena->count += size;
return (void *)&arena->tape[pos];
}
static void *
areturn(Arena *arena, unsigned int checkpoint, const void *src, unsigned int size)
{
void *dest;
if(arena == NULL || src == NULL) return NULL;
dest = (void *)&arena->tape[checkpoint];
if (src == dest) return dest;
memmove(dest, src, size);
arena->count = checkpoint + size;
return dest;
}
#define ARENA_RETURN(arena, ckpt, src_ptr, type) \
return (type *)areturn((arena), (ckpt), (src_ptr), sizeof(type))
#define ARENA_RETURN_ARRAY(arena, ckpt, src_ptr, type, count) \
return (type *)areturn((arena), (ckpt), (src_ptr), sizeof(type) * (count))
#endif