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[vulkan] Increase ring buffer size to 32 packets

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I'm still not happy with it being a compile time constant, but this
takes care of the interlock between frames in flight... for now: it's
fragile and really needs the excessive small-packet use in draw and
lighting to be cleaned up.

After discussion with Darian, I've decided to go with one big staging
buffer (with lots of packets) shared between FiF as the large size will,
in the end, be more flexible.
This commit is contained in:
Bill Currie 2023-12-04 23:19:13 +09:00
parent e65e80f573
commit 63e66e81c5
2 changed files with 3 additions and 1 deletions
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2
include/QF/Vulkan/staging.h
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@ -17,7 +17,7 @@ typedef struct qfv_stagebuf_s {
VkCommandPool cmdPool;
VkBuffer buffer;
VkDeviceMemory memory;
RING_BUFFER(qfv_packet_t, 4) packets; ///< packets for controlling access
RING_BUFFER(qfv_packet_t, 32) packets; ///< packets for controlling access
size_t atom_mask; ///< for flush size rounding
size_t size; ///< actual size of the buffer
size_t end; ///< effective end of the buffer due to early wrap

2
libs/video/renderer/vulkan/staging.c
View file

@ -273,6 +273,7 @@ QFV_PacketAcquire (qfv_stagebuf_t *stage)
void *
QFV_PacketExtend (qfv_packet_t *packet, size_t size)
{
qfZoneNamed (zone, true);
void *data = acquire_space (packet, size);
if (data) {
packet->length += size;
@ -283,6 +284,7 @@ QFV_PacketExtend (qfv_packet_t *packet, size_t size)
void
QFV_PacketSubmit (qfv_packet_t *packet)
{
qfZoneNamed (zone, true);
qfv_stagebuf_t *stage = packet->stage;
qfv_device_t *device = stage->device;
qfv_devfuncs_t *dfunc = device->funcs;