workshopsoft/ludic
2
0
Fork 0
Code Issues Pull requests Projects Releases 26 Packages Wiki Activity Actions

wip(render3d): one frame recording while one draws on Vulkan (double-buffered ring and pools), R3D_VK_LABELS, grass measuring switches (R3D_NOGRASS, R3D_BLADES, R3D_GRASS_S0/D0)

Browse source 
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Orkun ÇAKILKAYA 2026-09-27 14:32:01 +03:00
parent 4e2087d6eb
commit f815f3e3cf
8 changed files with 100 additions and 19 deletions
Download patch file Download diff file Expand all files Collapse all files

26
packages/ludic.render3d/gpu_vk_draw.ludic
View file

@ -650,7 +650,8 @@ function gvk_frame_init(render3d_st: mut Render3dState) -> bool {
if (counts & VK_SAMPLE_COUNT_2_BIT) != 0 { render3d_st.gvk_msaa_max = 2 }
if (counts & VK_SAMPLE_COUNT_4_BIT) != 0 { render3d_st.gvk_msaa_max = 4 }
render3d_st.gvk_ring_buf = gvk_buf_new(render3d_st)
if not gvk_buf_reserve(render3d_st, render3d_st.gvk_ring_buf, GVK_RING_BYTES) { return false }
# one half per frame slot: the cached sets bind this one buffer, and each draw's offset says the half
if not gvk_buf_reserve(render3d_st, render3d_st.gvk_ring_buf, GVK_RING_BYTES * 2) { return false }
let sizes = bytes(VkDescriptorPoolSize_sizeof * 3)
Vk.put_i32(sizes, VkDescriptorPoolSize_type, VK_DESCRIPTOR_TYPE_UNIFORM_BUFFER)
Vk.put_i32(sizes, VkDescriptorPoolSize_descriptorCount, 32768)
@ -665,9 +666,13 @@ function gvk_frame_init(render3d_st: mut Render3dState) -> bool {
Vk.put_i32(dpci, VkDescriptorPoolCreateInfo_poolSizeCount, 3)
Vk.put_ptr(dpci, VkDescriptorPoolCreateInfo_pPoolSizes, sizes)
let out = bytes(8)
let r = Vk.create_descriptor_pool(render3d_st.gvk_dev, dpci, null, out)
if r != VK_SUCCESS { return gvk_fail(render3d_st, "vkCreateDescriptorPool", r) }
render3d_st.gvk_dpool = gvk_handle(out)
render3d_st.gvk_dpools = new []long
for k in 0 .. 2 {
let r = Vk.create_descriptor_pool(render3d_st.gvk_dev, dpci, null, out)
if r != VK_SUCCESS { return gvk_fail(render3d_st, "vkCreateDescriptorPool", r) }
push(render3d_st.gvk_dpools, gvk_handle(out))
}
render3d_st.gvk_dpool = render3d_st.gvk_dpools[0]
if not gvk_kpool_make(render3d_st) { return false }
render3d_st.gvk_white = gvk_tex_new(render3d_st)
let px = bytes(4)
@ -676,14 +681,17 @@ function gvk_frame_init(render3d_st: mut Render3dState) -> bool {
}
function gvk_frame_reset(render3d_st: mut Render3dState) -> void {
render3d_st.gvk_ring_off = 0
let slot = render3d_st.gvk_frame_no & 1
render3d_st.gvk_ring_off = slot * GVK_RING_BYTES
render3d_st.gvk_ring_end = (slot + 1) * GVK_RING_BYTES
render3d_st.gvk_dpool = render3d_st.gvk_dpools[slot]
Vk.reset_descriptor_pool(render3d_st.gvk_dev, render3d_st.gvk_dpool, 0)
}
# a block into the ring; its offset, or -1 when the frame has used the whole ring
function gvk_ring_put(render3d_st: mut Render3dState, blk: pointer, n: int) -> int {
let at = (render3d_st.gvk_ring_off + render3d_st.gvk_ring_align - 1) / render3d_st.gvk_ring_align * render3d_st.gvk_ring_align
if at + n > GVK_RING_BYTES { return -1 }
if at + n > render3d_st.gvk_ring_end { return -1 }
mem_copy(mem_off(render3d_st.gvk_buf_map[render3d_st.gvk_ring_buf], at), blk, n)
render3d_st.gvk_ring_off = at + n
return at
@ -954,7 +962,8 @@ function gvk_screen_make(render3d_st: mut Render3dState, w: int, h: int) -> bool
function gvk_frame_cb(render3d_st: mut Render3dState) -> pointer {
if render3d_st.gvk_cb == null {
gvk_frame_wait(render3d_st)
# the frame in flight uses the other half of the ring and the other pool, unless it has this slot
if render3d_st.gvk_frame_pending and (render3d_st.gvk_frame_pending_no & 1) == (render3d_st.gvk_frame_no & 1) { gvk_frame_wait(render3d_st) }
gvk_frame_reset(render3d_st)
render3d_st.gvk_cb = gvk_once_begin(render3d_st)
}
@ -1270,6 +1279,7 @@ function gvk_flush(render3d_st: mut Render3dState) -> void {
if render3d_st.gvk_cb == null { return }
render3d_st.gvk_n_flush += 1
gvk_pass_end(render3d_st)
gvk_labels_close(render3d_st)
gvk_once_end(render3d_st, render3d_st.gvk_cb)
render3d_st.gvk_cb = null
render3d_st.gvk_frame_no += 1
@ -1290,6 +1300,7 @@ function gvk_present(render3d_st: mut Render3dState) -> void {
}
if render3d_st.gvk_cb == null { return }
gvk_pass_end(render3d_st)
gvk_labels_close(render3d_st)
gvk_once_end(render3d_st, render3d_st.gvk_cb)
render3d_st.gvk_cb = null
render3d_st.gvk_frame_no += 1
@ -1669,6 +1680,7 @@ function gvk_swap_make(render3d_st: mut Render3dState, w: int, h: int) -> bool {
function gvk_present_window(render3d_st: mut Render3dState) -> void {
let cb = gvk_frame_cb(render3d_st)
gvk_pass_end(render3d_st)
gvk_labels_close(render3d_st)
# a covered window is not drawn to: its layer would hold the frame for a drawable the compositor
# hands back once a second. The frame still runs, paced at about 60 Hz, so the game keeps time.
if win_visible() == 0 {