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clean up dependencies

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Matthew 2026-05-13 02:23:31 +10:00
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commit b481fcf195
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4
dlib/dlibincludes.c
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@ -28,10 +28,6 @@
# include "../external/stb/stb_image_write.h"
#endif
#ifdef BUILD_WASM
# include "../external/tinyalloc/tinyalloc.c"
#endif
#ifdef DLIB_INCLUDE_VULKAN
# include "../../VulkanRenderer/vulkan_includes.c"
#endif

201
external/tinyalloc/LICENCE vendored
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@ -1,201 +0,0 @@
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383
external/tinyalloc/tinyalloc.c vendored
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@ -1,383 +0,0 @@
#include "tinyalloc.h"
#include <stdint.h>
#ifdef TA_DEBUG
extern void print_s(char *);
extern void print_i(size_t);
#else
#define print_s(X)
#define print_i(X)
#endif
typedef struct Block Block;
struct Block
{
void *addr;
Block *next;
size_t size;
};
typedef struct
{
Block *free; // first free block
Block *used; // first used block
Block *fresh; // first available blank block
size_t top; // top free addr
} Heap;
extern uint8_t __heap_base;
extern uint8_t __data_end;
static Heap *heap = NULL;
static const void *heap_limit = NULL;
static size_t heap_split_thresh;
static size_t heap_alignment;
static size_t heap_max_blocks;
static size_t current_pages;
/**
* If compaction is enabled, inserts block
* into free list, sorted by addr.
* If disabled, add block has new head of
* the free list.
*/
static void insert_block(Block *block)
{
#ifndef TA_DISABLE_COMPACT
Block *ptr = heap->free;
Block *prev = NULL;
while (ptr != NULL)
{
if ((size_t)block->addr <= (size_t)ptr->addr)
{
print_s("insert");
print_i((size_t)ptr);
break;
}
prev = ptr;
ptr = ptr->next;
}
if (prev != NULL)
{
if (ptr == NULL)
{
print_s("new tail");
}
prev->next = block;
}
else
{
print_s("new head");
heap->free = block;
}
block->next = ptr;
#else
block->next = heap->free;
heap->free = block;
#endif
}
#ifndef TA_DISABLE_COMPACT
static void release_blocks(Block *scan, Block *to)
{
Block *scan_next;
while (scan != to)
{
print_s("release");
print_i((size_t)scan);
scan_next = scan->next;
scan->next = heap->fresh;
heap->fresh = scan;
scan->addr = 0;
scan->size = 0;
scan = scan_next;
}
}
static void compact()
{
Block *ptr = heap->free;
Block *prev;
Block *scan;
while (ptr != NULL)
{
prev = ptr;
scan = ptr->next;
while (scan != NULL && (size_t)prev->addr + prev->size == (size_t)scan->addr)
{
print_s("merge");
print_i((size_t)scan);
prev = scan;
scan = scan->next;
}
if (prev != ptr)
{
size_t new_size = (size_t)prev->addr - (size_t)ptr->addr + prev->size;
print_s("new size");
print_i(new_size);
ptr->size = new_size;
Block *next = prev->next;
// make merged blocks available
release_blocks(ptr->next, prev->next);
// relink
ptr->next = next;
}
ptr = ptr->next;
}
}
#endif
uint32_t ta_grow(uint32_t pages)
{
return __builtin_wasm_memory_grow(0, pages);
}
uint32_t ta_page_count()
{
return __builtin_wasm_memory_size(0);
}
void ta_init(const size_t heap_blocks, const size_t split_thresh, const size_t alignment)
{
current_pages = ta_page_count();
void *limit = (void *)ta_PAGE_SIZE(current_pages);
heap = (Heap *)&__heap_base;
heap_limit = limit;
heap_split_thresh = split_thresh;
heap_alignment = alignment;
heap_max_blocks = heap_blocks;
heap->free = NULL;
heap->used = NULL;
heap->fresh = (Block *)(heap + 1);
heap->top = (size_t)(heap->fresh + heap_blocks);
Block *block = heap->fresh;
size_t i = heap_max_blocks - 1;
while (i--)
{
block->next = block + 1;
block++;
}
block->next = NULL;
}
void free(void *ptr)
{
Block *block = heap->used;
Block *prev = NULL;
while (block != NULL)
{
if (ptr == block->addr)
{
if (prev)
{
prev->next = block->next;
}
else
{
heap->used = block->next;
}
insert_block(block);
#ifndef TA_DISABLE_COMPACT
compact();
#endif
}
prev = block;
block = block->next;
}
}
size_t ta_ptr_size(void *ptr)
{
size_t result = 0;
Block *block = heap->used;
while(block != NULL)
{
if(ptr == block->addr)
{
result = block->size;
break;
}
}
return result;
}
static Block *alloc_block(size_t num)
{
Block *ptr = heap->free;
Block *prev = NULL;
size_t top = heap->top;
num = (num + heap_alignment - 1) & -heap_alignment;
while (ptr != NULL)
{
const int is_top = ((size_t)ptr->addr + ptr->size >= top) && ((size_t)ptr->addr + num <= (size_t)heap_limit);
if (is_top || ptr->size >= num)
{
if (prev != NULL)
{
prev->next = ptr->next;
}
else
{
heap->free = ptr->next;
}
ptr->next = heap->used;
heap->used = ptr;
if (is_top)
{
print_s("resize top block");
ptr->size = num;
heap->top = (size_t)ptr->addr + num;
#ifndef TA_DISABLE_SPLIT
}
else if (heap->fresh != NULL)
{
size_t excess = ptr->size - num;
if (excess >= heap_split_thresh)
{
ptr->size = num;
Block *split = heap->fresh;
heap->fresh = split->next;
split->addr = (void *)((size_t)ptr->addr + num);
print_s("split");
print_i((size_t)split->addr);
split->size = excess;
insert_block(split);
#ifndef TA_DISABLE_COMPACT
compact();
#endif
}
#endif
}
return ptr;
}
prev = ptr;
ptr = ptr->next;
}
// no matching free blocks
// see if any other blocks available
size_t new_top = top + num;
if (heap->fresh != NULL && new_top <= (size_t)heap_limit)
{
ptr = heap->fresh;
heap->fresh = ptr->next;
ptr->addr = (void *)top;
ptr->next = heap->used;
ptr->size = num;
heap->used = ptr;
heap->top = new_top;
return ptr;
}
return NULL;
}
static size_t ta_bytes_to_pages(size_t count)
{
size_t pages = count/(1024*64);
return pages > 0 ? pages : 1;
}
void *malloc(size_t num)
{
Block *block = alloc_block(num);
if(block == NULL)
{
ta_grow(ta_bytes_to_pages(num));
size_t new_pages = ta_page_count();
size_t page_diff = new_pages - current_pages;
if(page_diff > 0)
{
current_pages = new_pages;
heap_limit = (void *)ta_PAGE_SIZE(current_pages);
block = alloc_block(num);
}
}
return block != NULL ? block->addr : NULL;
}
static void memclear(void *ptr, size_t num)
{
size_t *ptrw = (size_t *)ptr;
size_t numw = (num & -sizeof(size_t)) / sizeof(size_t);
while (numw--)
{
*ptrw++ = 0;
}
num &= (sizeof(size_t) - 1);
uint8_t *ptrb = (uint8_t *)ptrw;
while (num--)
{
*ptrb++ = 0;
}
}
void *calloc(size_t num, size_t size)
{
num *= size;
Block *block = alloc_block(num);
if (block != NULL)
{
memclear(block->addr, num);
return block->addr;
}
return NULL;
}
void *realloc(void *ptr, size_t size)
{
void *new_ptr = malloc(size);
size_t prev_size = ta_ptr_size(ptr);
__builtin_memcpy(new_ptr, ptr, prev_size);
free(ptr);
return new_ptr;
}
static size_t count_blocks(Block *ptr)
{
size_t num = 0;
while (ptr != NULL)
{
num++;
ptr = ptr->next;
}
return num;
}
size_t ta_num_free()
{
return count_blocks(heap->free);
}
size_t ta_num_used()
{
return count_blocks(heap->used);
}
size_t ta_num_fresh()
{
return count_blocks(heap->fresh);
}
bool ta_check()
{
return heap_max_blocks == ta_num_free() + ta_num_used() + ta_num_fresh();
}

28
external/tinyalloc/tinyalloc.h vendored
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@ -1,28 +0,0 @@
#ifdef __cplusplus
extern "C" {
#endif
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#define ta_PAGE_SIZE(x)(x*1024*64)
void ta_init(const size_t heap_blocks, const size_t split_thresh, const size_t alignment);
uint32_t ta_grow(uint32_t pages);
uint32_t ta_page_count();
void *malloc(size_t num);
void *calloc(size_t num, size_t size);
void free(void *ptr);
void *realloc(void *ptr, size_t num);
size_t ta_ptr_size(void *ptr);
size_t ta_num_free();
size_t ta_num_used();
size_t ta_num_fresh();
bool ta_check();
#ifdef __cplusplus
}
#endif

0
external/wasmbuild.c vendored
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