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render3d: a screenshot frees its read-back, header and row

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gvk_screenshot kept a buffer the size of the screen per shot (the valley scan's largest unreachable
site), and its PPM header and row buffer; each goes on every way out now. Compiled (steady).

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
Orkun ÇAKILKAYA 2026-09-28 19:22:01 +03:00
parent 4df15eacfb
commit 5be2422c84
1 changed files with 13 additions and 2 deletions
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15
packages/ludic.render3d/gpu_vk_draw.ludic
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@ -1427,12 +1427,21 @@ function gvk_screenshot(render3d_st: mut Render3dState, path: string) -> bool {
gvk_present(render3d_st)
let w = render3d_st.gvk_screen_w
let h = render3d_st.gvk_screen_h
# the read-back, the header and the row are this shot's own and go on every way out: a buffer the
# size of the screen was once kept per shot
let px = bytes(w * h * 4)
if not gvk_tex_read(render3d_st, render3d_st.gvk_screen_color, GL_RGBA8, w, h, GL_RGBA, GL_UNSIGNED_BYTE, px) { return false }
if not gvk_tex_read(render3d_st, render3d_st.gvk_screen_color, GL_RGBA8, w, h, GL_RGBA, GL_UNSIGNED_BYTE, px) {
free(px)
return false
}
let f = file_open(path, "wb")
if f == null { return false }
if f == null {
free(px)
return false
}
let hdr = `P6\n{w} {h}\n255\n`
file_write(f, hdr, len(hdr))
free(hdr)
let row = bytes(w * 3)
var y = h - 1
while y >= 0 {
@ -1444,6 +1453,8 @@ function gvk_screenshot(render3d_st: mut Render3dState, path: string) -> bool {
y -= 1
}
file_close(f)
free(row)
free(px)
return true
}