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ericw-tools
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don't crash on unlit maps

This commit is contained in:
Jonathan 2022-07-08 03:45:14 -04:00
parent 951464f52b
commit 13245d14d6
1 changed files with 18 additions and 4 deletions
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22
common/bspinfo.cc
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@ -240,7 +240,7 @@ static std::optional<img::texture> get_lightmap_face(const mbsp_t &bsp, const bs
return texture;
}
static std::string generate_lightmap_atlas(const mbsp_t &bsp, const bspxentries_t &bspx, int32_t style, bool use_bspx)
static std::optional<std::string> generate_lightmap_atlas(const mbsp_t &bsp, const bspxentries_t &bspx, int32_t style, bool use_bspx)
{
struct face_rect
{
@ -264,7 +264,17 @@ static std::string generate_lightmap_atlas(const mbsp_t &bsp, const bspxentries_
rectangles.reserve(bsp.dfaces.size());
for (auto &face : bsp.dfaces) {
rectangles.emplace_back(face_rect { &face, get_lightmap_face(bsp, bspx, face, use_bspx) });
face_rect rect { &face, get_lightmap_face(bsp, bspx, face, use_bspx) };
if (!rect.texture) {
continue;
}
rectangles.emplace_back(std::move(rect));
}
if (!rectangles.size()) {
return std::nullopt;
}
std::sort(rectangles.begin(), rectangles.end(), [](const face_rect &a, const face_rect &b) -> bool {
@ -605,10 +615,14 @@ void serialize_bsp(const bspdata_t &bspdata, const mbsp_t &bsp, const fs::path &
}
// lightmap atlas
j.emplace("lightmap", generate_lightmap_atlas(bsp, bspdata.bspx.entries, 0, false));
if (auto lm = generate_lightmap_atlas(bsp, bspdata.bspx.entries, 0, false)) {
j.emplace("lightmap", std::move(*lm));
}
if (bspdata.bspx.entries.find("LMOFFSET") != bspdata.bspx.entries.end()) {
j.emplace("bspx_lightmap", generate_lightmap_atlas(bsp, bspdata.bspx.entries, 0, true));
if (auto lm = generate_lightmap_atlas(bsp, bspdata.bspx.entries, 0, true)) {
j.emplace("bspx_lightmap", std::move(*lm));
}
}
std::ofstream(name, std::fstream::out | std::fstream::trunc) << std::setw(4) << j;