Orkuncakilkaya
6289564382
Every allocation carries the owner its maker was wrapped in (models, terrain, impostor atlases, scatter, grass, shadow maps, frame targets, sky, water, game textures, made in a frame), and the report prints each owner's images and buffers, the 25 largest images and the scatter layers', streams' and terrain's CPU copies. Nothing drawn changes. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
88 lines
3.6 KiB
Text
88 lines
3.6 KiB
Text
# texture_dds.ludic - a .dds beside a .png: BC7 (colour, and anything packed into three channels),
|
|
# BC5 (a normal's x and y) or BC4 (one channel), every mip level encoded at build time. Only the
|
|
# DX10 form with its whole chain is taken; anything else is 0 and the caller loads the .png.
|
|
|
|
# DXGI's numbers for the formats read here
|
|
const DDS_BC4: int = 80
|
|
const DDS_BC5: int = 83
|
|
const DDS_BC7: int = 98
|
|
const DDS_BC7_SRGB: int = 99
|
|
|
|
function dds_u32(b: []byte, o: int) -> int { return b[o] | (b[o + 1] << 8) | (b[o + 2] << 16) | (b[o + 3] << 24) }
|
|
|
|
# the .dds a .png may have beside it, or "" when the path is not a .png
|
|
function dds_path_of(path: string) -> string {
|
|
let n = len(path)
|
|
if n < 5 or path[n - 4 .. n] != ".png" { return "" }
|
|
return path[0 .. n - 4] + ".dds"
|
|
}
|
|
|
|
# Load the .dds at `path` as a texture (srgb: colour, sampled as sRGB), or 0
|
|
# the GPU memory it makes is counted as VKM_TEXTURE (R3D_VKMEM)
|
|
function tex_load_dds(render3d_st: mut Render3dState, path: string, srgb: bool) -> int {
|
|
let was = render3d_st.gvk_tag
|
|
if was == VKM_OTHER { render3d_st.gvk_tag = VKM_TEXTURE }
|
|
let r = tex_load_dds__t(render3d_st, path, srgb)
|
|
render3d_st.gvk_tag = was
|
|
return r
|
|
}
|
|
@alloc_ok("loading a model, a texture or a font: a load, not a frame (a guest loading a teammate's look is one)")
|
|
function tex_load_dds__t(render3d_st: mut Render3dState, path: string, srgb: bool) -> int {
|
|
let b = Fs.read_bytes(path)
|
|
if b == null { return 0 }
|
|
let id = tex_load_dds_bytes(render3d_st, b, srgb)
|
|
free(b)
|
|
if id == 0 { print(`r3d: {path} is not a DX10 .dds with its whole mip chain; the .png is used`) }
|
|
return id
|
|
}
|
|
|
|
# the GPU memory it makes is counted as VKM_TEXTURE (R3D_VKMEM)
|
|
function tex_load_dds_bytes(render3d_st: mut Render3dState, b: []byte, srgb: bool) -> int {
|
|
let was = render3d_st.gvk_tag
|
|
if was == VKM_OTHER { render3d_st.gvk_tag = VKM_TEXTURE }
|
|
let r = tex_load_dds_bytes__t(render3d_st, b, srgb)
|
|
render3d_st.gvk_tag = was
|
|
return r
|
|
}
|
|
function tex_load_dds_bytes__t(render3d_st: mut Render3dState, b: []byte, srgb: bool) -> int {
|
|
if len(b) < 148 or b[0] != 68 or b[1] != 68 or b[2] != 83 or b[3] != 32 { return 0 }
|
|
if b[84] != 68 or b[85] != 88 or b[86] != 49 or b[87] != 48 { return 0 } # "DX10"
|
|
let h = dds_u32(b, 12)
|
|
let w = dds_u32(b, 16)
|
|
var levels = dds_u32(b, 28)
|
|
if levels < 1 { levels = 1 }
|
|
let dxgi = dds_u32(b, 128)
|
|
var ifmt = 0
|
|
var block = 16
|
|
if dxgi == DDS_BC7 or dxgi == DDS_BC7_SRGB { ifmt = R3D_BC7; if srgb { ifmt = R3D_BC7_SRGB } }
|
|
if dxgi == DDS_BC5 { ifmt = R3D_BC5 }
|
|
if dxgi == DDS_BC4 { ifmt = R3D_BC4; block = 8 }
|
|
if ifmt == 0 or w < 1 or h < 1 or levels != gvk_mip_levels(w, h) { return 0 }
|
|
let offs = words(levels + 1)
|
|
var at = 0
|
|
for l in 0 .. levels {
|
|
offs[l] = at
|
|
at += max((max(w >> l, 1) + 3) / 4, 1) * max((max(h >> l, 1) + 3) / 4, 1) * block
|
|
}
|
|
offs[levels] = at
|
|
if 148 + at > len(b) {
|
|
free(offs)
|
|
return 0
|
|
}
|
|
let id = gpu_tex_new(render3d_st)
|
|
gpu_tex_bind(render3d_st, GPU_TEX2D, id)
|
|
let ok = gpu_tex_compressed(render3d_st, ifmt, w, h, levels, mem_off(data_of(b), 148), offs)
|
|
free(offs)
|
|
if not ok {
|
|
gpu_tex_free(render3d_st, id)
|
|
return 0
|
|
}
|
|
gpu_tex_param(render3d_st, GPU_TEX2D, GL_TEXTURE_WRAP_S, GL_REPEAT)
|
|
gpu_tex_param(render3d_st, GPU_TEX2D, GL_TEXTURE_WRAP_T, GL_REPEAT)
|
|
gpu_tex_param(render3d_st, GPU_TEX2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR)
|
|
gpu_tex_param(render3d_st, GPU_TEX2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR_MIPMAP_LINEAR)
|
|
gpu_tex_paramf(render3d_st, GPU_TEX2D, GL_TEXTURE_MAX_ANISOTROPY_EXT, render3d_st.tex_anisotropy)
|
|
render3d_st.tex_w = w
|
|
render3d_st.tex_h = h
|
|
return id
|
|
}
|