34 lines
1.2 KiB
C
34 lines
1.2 KiB
C
#pragma once
|
|
#include "vk_core.h"
|
|
|
|
qboolean createBuffer(const char *debug_name, vk_buffer_t *buf, uint32_t size, VkBufferUsageFlags usage, VkMemoryPropertyFlags flags);
|
|
void destroyBuffer(vk_buffer_t *buf);
|
|
|
|
|
|
// v -- begin of ring buffer|permanent_size
|
|
// |XXXMAPLIFETME|<......|FRAME1|FRAME2|FRAMEN|......................>|
|
|
// busy pos - ^ ^ ^ ^ -- write pos | offset_free
|
|
typedef struct {
|
|
uint32_t size;
|
|
uint32_t permanent_size;
|
|
uint32_t offset_free;
|
|
uint32_t free;
|
|
|
|
// TODO per-frame offsets for many frames in flight
|
|
} vk_ring_buffer_t;
|
|
|
|
enum { AllocFailed = 0xffffffffu };
|
|
|
|
// Marks the entire buffer as free
|
|
void VK_RingBuffer_Clear(vk_ring_buffer_t* buf);
|
|
|
|
// Allocates a new aligned region and returns offset to it (-1 if allocation failed)
|
|
uint32_t VK_RingBuffer_Alloc(vk_ring_buffer_t* buf, uint32_t size, uint32_t align);
|
|
|
|
// Fixes everything that has been allocated since Clear as permanent, ring buffer will operate on the remainder only
|
|
// Can be called only once since Clear
|
|
void VK_RingBuffer_Fix(vk_ring_buffer_t* buf);
|
|
|
|
// Clears non-permantent part of the buffer
|
|
void VK_RingBuffer_ClearFrame(vk_ring_buffer_t* buf);
|