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82 lines
1.7 KiB
C
82 lines
1.7 KiB
C
/**
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* Jingga
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*
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* @copyright Jingga
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* @license OMS License 2.0
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* @version 1.0.0
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* @link https://jingga.app
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*/
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#ifndef TOS_MEMORY_BUFFER_MEMORY_H
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#define TOS_MEMORY_BUFFER_MEMORY_H
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#include <string.h>
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#include "../stdlib/Types.h"
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#include "../utils/MathUtils.h"
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#include "../utils/TestUtils.h"
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#include "Allocation.h"
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#include "DebugMemory.h"
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struct BufferMemory {
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byte* memory;
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uint32 id;
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uint64 size;
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uint64 pos;
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int alignment;
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};
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inline
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void buffer_alloc(BufferMemory* buf, uint64 size, int alignment = 1)
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{
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buf->memory = alignment < 2
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? (byte *) playform_alloc(size)
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: (byte *) playform_alloc_aligned(size, alignment);
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buf->alignment = alignment;
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buf->size = size;
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}
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inline
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void buffer_free(BufferMemory* buf)
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{
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if (buf->alignment < 2) {
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platform_free(buf->memory, buf->size);
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} else {
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platform_aligned_free(buf->memory, buf->size);
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}
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}
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inline
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void buffer_reset(BufferMemory* buf)
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{
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// @bug arent we wasting element 0 (see get_memory, we are not using 0 only next element)
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buf->pos = 0;
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DEBUG_MEMORY_RESET(&debug_memory[buf->id]);
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}
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inline
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byte* buffer_get_memory(BufferMemory* buf, uint64 size, int aligned = 1, bool zeroed = false)
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{
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ASSERT_SIMPLE(size <= buf->size);
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if (aligned > 1) {
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uintptr_t address = (uintptr_t) buf->memory;
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buf->pos += (aligned - ((address + buf->pos) & (aligned - 1))) % aligned;
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}
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size = ROUND_TO_NEAREST(size, aligned);
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ASSERT_SIMPLE(buf->pos + size <= buf->size);
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byte* offset = (byte *) (buf->memory + buf->pos);
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if (zeroed) {
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memset((void *) offset, 0, size);
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}
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DEBUG_MEMORY(&debug_memory[buf->id], buf->pos, size);
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buf->pos += size;
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return offset;
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}
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#endif |