mirror of https://github.com/bjornbytes/lovr.git
Mesh:getVertexMap with tables and Blobs;
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25a267acd1
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@ -185,11 +185,22 @@ int l_lovrMeshGetVertexMap(lua_State* L) {
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return 1;
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}
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lua_newtable(L);
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if (lua_istable(L, 2)) {
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lua_settop(L, 2);
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} else if (lua_isuserdata(L, 2)) {
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Blob* blob = luax_checktypeof(L, 2, Blob);
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lovrAssert(size * count <= blob->size, "Mesh vertex map is %zu bytes, but Blob can only hold %zu", size * count, blob->size);
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memcpy(blob->data, indices.raw, size * count);
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return 0;
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} else {
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lua_settop(L, 1);
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lua_createtable(L, count, 0);
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}
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for (size_t i = 0; i < count; i++) {
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uint32_t index = size == sizeof(uint32_t) ? indices.ints[i] : indices.shorts[i];
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lua_pushinteger(L, index + 1);
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lua_rawseti(L, -2, i + 1);
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lua_rawseti(L, 2, i + 1);
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}
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return 1;
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@ -237,6 +237,8 @@ void lovrMeshUnmapVertices(Mesh* mesh) {
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IndexPointer lovrMeshReadIndices(Mesh* mesh, uint32_t* count, size_t* size) {
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if (mesh->indexCount == 0) {
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return (IndexPointer) { .raw = NULL };
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} else if (mesh->mappedIndices) {
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lovrMeshUnmapIndices(mesh);
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}
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*size = mesh->indexSize;
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@ -252,6 +254,10 @@ IndexPointer lovrMeshReadIndices(Mesh* mesh, uint32_t* count, size_t* size) {
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}
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IndexPointer lovrMeshWriteIndices(Mesh* mesh, uint32_t count, size_t size) {
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if (mesh->mappedIndices) {
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lovrMeshUnmapIndices(mesh);
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}
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mesh->indexSize = size;
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mesh->indexCount = count;
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