mirror of https://github.com/bjornbytes/lovr.git
Mesh:setVertexMap accepts a Blob for fast updates;
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@ -203,30 +203,39 @@ int l_lovrMeshSetVertexMap(lua_State* L) {
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return 0;
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}
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luaL_checktype(L, 2, LUA_TTABLE);
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uint32_t count = lua_objlen(L, 2);
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uint32_t vertexCount = lovrMeshGetVertexCount(mesh);
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size_t size = vertexCount > USHRT_MAX ? sizeof(uint32_t) : sizeof(uint16_t);
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IndexPointer indices = lovrMeshWriteIndices(mesh, count, size);
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if (lua_type(L, 2) == LUA_TUSERDATA) {
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Blob* blob = luax_checktypeof(L, 2, Blob);
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size_t size = luaL_optinteger(L, 3, 4);
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lovrAssert(size == 2 || size == 4, "Size of Mesh indices should be 2 bytes or 4 bytes");
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uint32_t count = blob->size / size;
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IndexPointer indices = lovrMeshWriteIndices(mesh, count, size);
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memcpy(indices.raw, blob->data, blob->size);
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} else {
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luaL_checktype(L, 2, LUA_TTABLE);
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uint32_t count = lua_objlen(L, 2);
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uint32_t vertexCount = lovrMeshGetVertexCount(mesh);
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size_t size = vertexCount > USHRT_MAX ? sizeof(uint32_t) : sizeof(uint16_t);
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IndexPointer indices = lovrMeshWriteIndices(mesh, count, size);
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for (uint32_t i = 0; i < count; i++) {
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lua_rawgeti(L, 2, i + 1);
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if (!lua_isnumber(L, -1)) {
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return luaL_error(L, "Mesh vertex map index #%d must be numeric", i);
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for (uint32_t i = 0; i < count; i++) {
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lua_rawgeti(L, 2, i + 1);
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if (!lua_isnumber(L, -1)) {
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return luaL_error(L, "Mesh vertex map index #%d must be numeric", i);
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}
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uint32_t index = lua_tointeger(L, -1);
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if (index > vertexCount || index < 1) {
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return luaL_error(L, "Invalid vertex map value: %d", index);
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}
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if (size == sizeof(uint16_t)) {
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indices.shorts[i] = index - 1;
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} else {
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indices.ints[i] = index - 1;
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}
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lua_pop(L, 1);
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}
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uint32_t index = lua_tointeger(L, -1);
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if (index > vertexCount || index < 1) {
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return luaL_error(L, "Invalid vertex map value: %d", index);
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}
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if (size == sizeof(uint16_t)) {
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indices.shorts[i] = index - 1;
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} else {
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indices.ints[i] = index - 1;
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}
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lua_pop(L, 1);
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}
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return 0;
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