1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
|
#pragma once
#include "video/out/vo.h"
#include "video/out/gpu/context.h"
#include "video/mp_image.h"
#include "common.h"
#include "formats.h"
#define VK_LOAD_PFN(name) PFN_##name pfn_##name = (PFN_##name) \
vkGetInstanceProcAddr(vk->inst, #name);
// Return a human-readable name for various struct mpvk_ctx enums
const char* vk_err(VkResult res);
// Convenience macros to simplify a lot of common boilerplate
#define VK_ASSERT(res, str) \
do { \
if (res != VK_SUCCESS) { \
MP_ERR(vk, str ": %s\n", vk_err(res)); \
goto error; \
} \
} while (0)
#define VK(cmd) \
do { \
MP_TRACE(vk, #cmd "\n"); \
VkResult res ## __LINE__ = (cmd); \
VK_ASSERT(res ## __LINE__, #cmd); \
} while (0)
// Uninits everything in the correct order
void mpvk_uninit(struct mpvk_ctx *vk);
// Initialization functions: As a rule of thumb, these need to be called in
// this order, followed by vk_malloc_init, followed by RA initialization, and
// finally followed by vk_swchain initialization.
// Create a vulkan instance. Returns VK_NULL_HANDLE on failure
bool mpvk_instance_init(struct mpvk_ctx *vk, struct mp_log *log, bool debug);
// Generate a VkSurfaceKHR usable for video output. Returns VK_NULL_HANDLE on
// failure. Must be called after mpvk_instance_init.
bool mpvk_surface_init(struct vo *vo, struct mpvk_ctx *vk);
// Find a suitable physical device for use with rendering and which supports
// the surface.
// name: only match a device with this name
// sw: also allow software/virtual devices
bool mpvk_find_phys_device(struct mpvk_ctx *vk, const char *name, bool sw);
// Pick a suitable surface format that's supported by this physical device.
bool mpvk_pick_surface_format(struct mpvk_ctx *vk);
struct mpvk_device_opts {
int queue_count; // number of queues to use
};
// Create a logical device and initialize the vk_cmdpools
bool mpvk_device_init(struct mpvk_ctx *vk, struct mpvk_device_opts opts);
// Wait until all commands submitted to all queues have completed
void mpvk_pool_wait_idle(struct mpvk_ctx *vk, struct vk_cmdpool *pool);
void mpvk_dev_wait_idle(struct mpvk_ctx *vk);
// Wait until at least one command submitted to any queue has completed, and
// process the callbacks. Good for event loops that need to delay until a
// command completes. Will block at most `timeout` nanoseconds. If used with
// 0, it only garbage collects completed commands without blocking.
void mpvk_pool_poll_cmds(struct mpvk_ctx *vk, struct vk_cmdpool *pool,
uint64_t timeout);
void mpvk_dev_poll_cmds(struct mpvk_ctx *vk, uint32_t timeout);
// Since lots of vulkan operations need to be done lazily once the affected
// resources are no longer in use, provide an abstraction for tracking these.
// In practice, these are only checked and run when submitting new commands, so
// the actual execution may be delayed by a frame.
typedef void (*vk_cb)(void *priv, void *arg);
struct vk_callback {
vk_cb run;
void *priv;
void *arg; // as a convenience, you also get to pass an arg for "free"
};
// Associate a callback with the completion of all currently pending commands.
// This will essentially run once the device is completely idle.
void vk_dev_callback(struct mpvk_ctx *vk, vk_cb callback, void *p, void *arg);
#define MPVK_MAX_CMD_DEPS 8
// Helper wrapper around command buffers that also track dependencies,
// callbacks and synchronization primitives
struct vk_cmd {
struct vk_cmdpool *pool; // pool it was allocated from
VkCommandBuffer buf;
VkFence fence; // the fence guards cmd buffer reuse
VkSemaphore done; // the semaphore signals when execution is done
// The semaphores represent dependencies that need to complete before
// this command can be executed. These are *not* owned by the vk_cmd
VkSemaphore deps[MPVK_MAX_CMD_DEPS];
VkPipelineStageFlags depstages[MPVK_MAX_CMD_DEPS];
int num_deps;
// Since VkFences are useless, we have to manually track "callbacks"
// to fire once the VkFence completes. These are used for multiple purposes,
// ranging from garbage collection (resource deallocation) to fencing.
struct vk_callback *callbacks;
int num_callbacks;
};
// Associate a callback with the completion of the current command. This
// bool will be set to `true` once the command completes, or shortly thereafter.
void vk_cmd_callback(struct vk_cmd *cmd, vk_cb callback, void *p, void *arg);
// Associate a dependency for the current command. This semaphore must signal
// by the corresponding stage before the command may execute.
void vk_cmd_dep(struct vk_cmd *cmd, VkSemaphore dep,
VkPipelineStageFlagBits depstage);
#define MPVK_MAX_QUEUES 8
#define MPVK_MAX_CMDS 64
// Command pool / queue family hybrid abstraction
struct vk_cmdpool {
VkQueueFamilyProperties props;
uint32_t qf; // queue family index
VkCommandPool pool;
VkQueue queues[MPVK_MAX_QUEUES];
int qcount;
int qindex;
// Command buffers associated with this queue
struct vk_cmd cmds[MPVK_MAX_CMDS];
int cindex;
int cindex_pending;
};
// Fetch the next command buffer from a command pool and begin recording to it.
// Returns NULL on failure.
struct vk_cmd *vk_cmd_begin(struct mpvk_ctx *vk, struct vk_cmdpool *pool);
// Finish the currently recording command buffer and submit it for execution.
// If `done` is not NULL, it will be set to a semaphore that will signal once
// the command completes. (And MUST have a corresponding semaphore wait)
// Returns whether successful.
bool vk_cmd_submit(struct mpvk_ctx *vk, struct vk_cmd *cmd, VkSemaphore *done);
// Rotate the queues for each vk_cmdpool. Call this once per frame to ensure
// good parallelism between frames when using multiple queues
void vk_cmd_cycle_queues(struct mpvk_ctx *vk);
// Predefined structs for a simple non-layered, non-mipped image
extern const VkImageSubresourceRange vk_range;
extern const VkImageSubresourceLayers vk_layers;
|
