494 lines
16 KiB
C++
494 lines
16 KiB
C++
/*
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* Mr. 4th Dimention - Allen Webster
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*
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* 18.07.2017
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*
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* General win32 functions
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*
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*/
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// TOP
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internal b32
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system_file_can_be_made(Arena *scratch, u8 *filename){
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HANDLE file = CreateFile_utf8(scratch, filename, FILE_APPEND_DATA, 0, 0, OPEN_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0);
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b32 result = false;
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if (file != INVALID_HANDLE_VALUE){
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CloseHandle(file);
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result = true;
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}
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return(result);
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}
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//
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// Memory
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//
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internal void*
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win32_memory_allocate_extended(void *base, umem size){
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void *result = VirtualAlloc(base, size, MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE);
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return(result);
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}
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internal
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system_memory_allocate_sig(){
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return(win32_memory_allocate_extended(0, size));
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}
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internal
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system_memory_set_protection_sig(){
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b32 result = false;
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DWORD old_protect = 0;
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DWORD protect = 0;
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switch (flags & 0x7){
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case 0: protect = PAGE_NOACCESS; break;
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case MemProtect_Read: protect = PAGE_READONLY; break;
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case MemProtect_Write: /* below */
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case MemProtect_Write|MemProtect_Read: protect = PAGE_READWRITE; break;
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case MemProtect_Execute: protect = PAGE_EXECUTE; break;
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case MemProtect_Execute|MemProtect_Read: protect = PAGE_EXECUTE_READ; break;
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case MemProtect_Execute|MemProtect_Write: /* below */
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case MemProtect_Execute|MemProtect_Write|MemProtect_Read: protect = PAGE_EXECUTE_READWRITE; break;
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}
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VirtualProtect(ptr, size, protect, &old_protect);
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return(result);
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}
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internal
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system_memory_free_sig(){
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VirtualFree(ptr, 0, MEM_RELEASE);
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}
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//
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// 4ed path
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//
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internal
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system_get_path_sig(){
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String_Const_u8 result = {};
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switch (path_code){
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case SystemPath_CurrentDirectory:
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{
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DWORD size = GetCurrentDirectory_utf8(arena, 0, 0);
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u8 *out = push_array(arena, u8, size);
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size = GetCurrentDirectory_utf8(arena, size, out);
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result = SCu8(out, size);
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}break;
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case SystemPath_Binary:
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{
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local_persist b32 has_stashed_4ed_path = false;
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if (!has_stashed_4ed_path){
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has_stashed_4ed_path = true;
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local_const i32 binary_path_capacity = KB(32);
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u8 *memory = (u8*)system_memory_allocate(binary_path_capacity);
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i32 size = GetModuleFileName_utf8(arena, 0, memory, binary_path_capacity);
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Assert(size <= binary_path_capacity - 1);
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win32vars.binary_path = SCu8(memory, size);
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win32vars.binary_path = string_remove_last_folder(win32vars.binary_path);
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win32vars.binary_path.str[win32vars.binary_path.size] = 0;
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}
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result = push_string_copy(arena, win32vars.binary_path);
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}break;
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}
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return(result);
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}
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//
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// Files
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//
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internal String_Const_u8
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win32_remove_unc_prefix_characters(String_Const_u8 path){
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if (string_match(string_prefix(path, 7), string_u8_litexpr("\\\\?\\UNC"))){
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#if 0
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// TODO(allen): Why no just do
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path = string_skip(path, 7);
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path.str[0] = '\\';
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// ?
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#endif
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path.size -= 7;
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memmove(path.str, path.str + 7, path.size);
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path.str[0] = '\\';
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}
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else if (string_match(string_prefix(path, 4), string_u8_litexpr("\\\\?\\"))){
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// TODO(allen): Same questions essentially.
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path.size -= 4;
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memmove(path.str, path.str + 4, path.size);
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}
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return(path);
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}
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internal
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system_get_canonical_sig(){
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String_Const_u8 result = {};
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if ((character_is_alpha(string_get_character(name, 0)) &&
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string_get_character(name, 1) == ':') ||
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string_match(string_prefix(name, 2), string_u8_litexpr("\\\\"))){
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u8 *c_name = push_array(arena, u8, name.size + 1);
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block_copy(c_name, name.str, name.size);
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c_name[name.size] = 0;
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HANDLE file = CreateFile_utf8(arena, c_name, GENERIC_READ, 0, 0, OPEN_EXISTING,
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FILE_ATTRIBUTE_NORMAL, 0);
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if (file != INVALID_HANDLE_VALUE){
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DWORD capacity = GetFinalPathNameByHandle_utf8(arena, file, 0, 0, 0);
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u8 *buffer = push_array(arena, u8, capacity);
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DWORD length = GetFinalPathNameByHandle_utf8(arena, file, buffer, capacity, 0);
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if (length > 0 && buffer[length - 1] == 0){
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length -= 1;
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}
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result = SCu8(buffer, length);
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result = win32_remove_unc_prefix_characters(result);
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CloseHandle(file);
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}
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else{
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String_Const_u8 path = string_remove_front_of_path(name);
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String_Const_u8 front = string_front_of_path(name);
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u8 *c_path = push_array(arena, u8, path.size + 1);
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block_copy(c_path, path.str, path.size);
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c_path[path.size] = 0;
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HANDLE dir = CreateFile_utf8(arena, c_path, FILE_LIST_DIRECTORY,
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FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE, 0,
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OPEN_EXISTING,
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FILE_FLAG_BACKUP_SEMANTICS | FILE_FLAG_OVERLAPPED, 0);
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if (dir != INVALID_HANDLE_VALUE){
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DWORD capacity = GetFinalPathNameByHandle_utf8(arena, dir, 0, 0, 0);
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u8 *buffer = push_array(arena, u8, capacity + front.size + 1);
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DWORD length = GetFinalPathNameByHandle_utf8(arena, dir, buffer, capacity, 0);
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if (length > 0 && buffer[length - 1] == 0){
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length -= 1;
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}
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buffer[length] = '\\';
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length += 1;
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block_copy(buffer + length, front.str, front.size);
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length += (DWORD)front.size;
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result = SCu8(buffer, length);
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result = win32_remove_unc_prefix_characters(result);
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CloseHandle(dir);
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}
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}
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}
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return(result);
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}
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internal File_Attribute_Flag
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win32_convert_file_attribute_flags(DWORD dwFileAttributes){
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File_Attribute_Flag result = {};
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MovFlag(dwFileAttributes, FILE_ATTRIBUTE_DIRECTORY, result, FileAttribute_IsDirectory);
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return(result);
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}
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internal u64
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win32_u64_from_u32_u32(u32 hi, u32 lo){
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return( (((u64)hi) << 32) | ((u64)lo) );
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}
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internal u64
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win32_u64_from_filetime(FILETIME time){
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return(win32_u64_from_u32_u32(time.dwHighDateTime, time.dwLowDateTime));
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}
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internal File_Attributes
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win32_file_attributes_from_HANDLE(HANDLE file){
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BY_HANDLE_FILE_INFORMATION info = {};
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GetFileInformationByHandle(file, &info);
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File_Attributes result = {};
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result.size = win32_u64_from_u32_u32(info.nFileSizeHigh, info.nFileSizeLow);
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result.last_write_time = win32_u64_from_filetime(info.ftLastWriteTime);
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result.flags = win32_convert_file_attribute_flags(info.dwFileAttributes);
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return(result);
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}
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internal
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system_get_file_list_sig(){
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File_List result = {};
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String_Const_u8 search_pattern = {};
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if (character_is_slash(string_get_character(directory, directory.size - 1))){
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search_pattern = push_u8_stringf(arena, "%.*s*", string_expand(directory));
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}
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else{
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search_pattern = push_u8_stringf(arena, "%.*s\\*", string_expand(directory));
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}
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WIN32_FIND_DATA find_data = {};
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HANDLE search = FindFirstFile_utf8(arena, search_pattern.str, &find_data);
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if (search != INVALID_HANDLE_VALUE){
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File_Info *first = 0;
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File_Info *last = 0;
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i32 count = 0;
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for (;;){
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String_Const_u16 file_name_utf16 = SCu16(find_data.cFileName);
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if (!(string_match(file_name_utf16, string_u16_litexpr(L".")) ||
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string_match(file_name_utf16, string_u16_litexpr(L"..")))){
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String_Const_u8 file_name = string_u8_from_string_u16(arena, file_name_utf16,
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StringFill_NullTerminate).string;
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File_Info *info = push_array(arena, File_Info, 1);
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sll_queue_push(first, last, info);
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count += 1;
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info->file_name = file_name;
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info->attributes.size = win32_u64_from_u32_u32(find_data.nFileSizeHigh,
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find_data.nFileSizeLow);
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info->attributes.last_write_time = win32_u64_from_filetime(find_data.ftLastWriteTime);
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info->attributes.flags = win32_convert_file_attribute_flags(find_data.dwFileAttributes);
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}
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if (!FindNextFile(search, &find_data)){
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break;
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}
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}
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result.infos = push_array(arena, File_Info*, count);
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result.count = count;
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i32 counter = 0;
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for (File_Info *node = first;
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node != 0;
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node = node->next){
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result.infos[counter] = node;
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counter += 1;
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}
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}
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return(result);
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}
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internal
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system_quick_file_attributes_sig(){
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WIN32_FILE_ATTRIBUTE_DATA info = {};
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File_Attributes result = {};
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if (GetFileAttributesEx_utf8String(scratch, file_name, GetFileExInfoStandard, &info)){
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result.size = ((u64)info.nFileSizeHigh << 32LL) | ((u64)info.nFileSizeLow);
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result.last_write_time = ((u64)info.ftLastWriteTime.dwHighDateTime << 32LL) | ((u64)info.ftLastWriteTime.dwLowDateTime);
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result.flags = win32_convert_file_attribute_flags(info.dwFileAttributes);
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}
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return(result);
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}
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internal
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system_load_handle_sig(){
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b32 result = false;
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HANDLE file = CreateFile_utf8(scratch, (u8*)file_name, GENERIC_READ, 0, 0, OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, 0);
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if (file != INVALID_HANDLE_VALUE){
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*(HANDLE*)out = file;
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result = true;
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}
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return(result);
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}
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internal
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system_load_attributes_sig(){
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HANDLE file = *(HANDLE*)(&handle);
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return(win32_file_attributes_from_HANDLE(file));
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}
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internal
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system_load_file_sig(){
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HANDLE file = *(HANDLE*)(&handle);
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DWORD read_size = 0;
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b32 result = false;
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if (ReadFile(file, buffer, size, &read_size, 0)){
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if (read_size == size){
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result = true;
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}
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}
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return(result);
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}
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internal
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system_load_close_sig(){
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b32 result = false;
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HANDLE file = *(HANDLE*)(&handle);
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if (CloseHandle(file)){
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result = true;
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}
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return(result);
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}
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internal
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system_save_file_sig(){
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File_Attributes result = {};
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HANDLE file = CreateFile_utf8(scratch, (u8*)file_name, GENERIC_WRITE, 0, 0, CREATE_ALWAYS, FILE_ATTRIBUTE_NORMAL, 0);
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if (file != INVALID_HANDLE_VALUE){
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u64 written_total = 0;
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b32 success = true;
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for (;written_total < data.size;){
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DWORD read_size = max_u32;
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DWORD write_size = 0;
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if ((data.size - written_total) < max_u32){
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read_size = (DWORD)data.size;
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}
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if (!WriteFile(file, data.str + written_total, read_size, &write_size, 0)){
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success = false;
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break;
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}
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written_total += write_size;
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}
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if (success){
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result = win32_file_attributes_from_HANDLE(file);
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}
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CloseHandle(file);
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}
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return(result);
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}
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////////////////////////////////
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internal int_color
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swap_r_and_b(int_color a){
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int_color result = a & 0xff00ff00;
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result |= ((a >> 16) & 0xff);
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result |= ((a & 0xff) << 16);
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return(result);
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}
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internal int_color
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int_color_from_colorref(COLORREF ref, int_color alpha_from){
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int_color rgb = swap_r_and_b(ref & 0xffffff);
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int_color result = ((0xff000000 & alpha_from) | rgb);
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return(result);
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}
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internal UINT_PTR CALLBACK
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color_picker_hook(HWND Window, UINT Message, WPARAM WParam, LPARAM LParam){
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UINT_PTR result = 0;
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switch(Message)
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{
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// TODO(allen): review
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case WM_INITDIALOG:
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{
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CHOOSECOLORW *win32_params = (CHOOSECOLORW *)LParam;
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Color_Picker *picker = (Color_Picker*)win32_params->lCustData;
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SetWindowLongPtr(Window, GWLP_USERDATA, (LONG_PTR)LParam);
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Scratch_Block scratch(win32vars.tctx);
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String_u16 temp = string_u16_from_string_u8(scratch, picker->title, StringFill_NullTerminate);
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SetWindowTextW(Window, (LPCWSTR)temp.str);
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} break;
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case WM_CTLCOLORSTATIC:
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{
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// NOTE(casey): I can't believe I'm 42 years old and I still have to do this fucking crap.
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// Microsoft is so fucking fired every god damn day. Would it have killed you to update rgbResult
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// continuously, or at least provide a GetCurrentColor() call???
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//
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// Anyway, since the color picker doesn't tell us when the color is changed, what we do is watch for messages
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// that repaint the color swatch, which is dialog id 0x2c5, and then we sample it to see what color it is.
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// No, I'm not fucking kidding, that's what we do.
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HWND swatch_window = (HWND)LParam;
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if(GetDlgCtrlID(swatch_window) == 0x2c5)
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{
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CHOOSECOLORW *win32_params = (CHOOSECOLORW *)GetWindowLongPtr(Window, GWLP_USERDATA);
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if(win32_params)
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{
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Color_Picker *picker = (Color_Picker*)win32_params->lCustData;
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RECT rect;
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GetClientRect(swatch_window, &rect);
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HDC swatch_dc = (HDC)WParam;
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COLORREF Probe = GetPixel(swatch_dc, (rect.left + rect.right) / 4, (rect.top + rect.bottom) / 2);
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int_color new_color = int_color_from_colorref(Probe, *picker->dest);
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if(*picker->dest != new_color)
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{
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*picker->dest = new_color;
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system_signal_step(0);
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}
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}
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}
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} break;
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default:
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{
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#if 0
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// NOTE(casey): Enable this if you want to dump the color edit dialog messages to the debug log
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short Temp[256];
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wsprintf((LPWSTR)Temp, L"%u 0x%x 0x%x\n", Message, WParam, LParam);
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OutputDebugStringW((LPWSTR)Temp);
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#endif
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} break;
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}
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return(result);
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}
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// TODO(allen): review
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internal DWORD WINAPI
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color_picker_thread(LPVOID Param)
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{
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Color_Picker *picker = (Color_Picker*)Param;
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int_color color = 0;
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if(picker->dest)
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{
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color = *picker->dest;
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}
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COLORREF custom_colors[16] = {};
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CHOOSECOLORW win32_params = {};
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win32_params.lStructSize = sizeof(win32_params);
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//win32_params.hwndOwner = win32vars.window_handle;
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win32_params.hInstance = win32vars.window_handle;
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win32_params.rgbResult = swap_r_and_b(color) & 0xffffff;
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win32_params.lpCustColors = custom_colors;
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win32_params.Flags = CC_RGBINIT | CC_FULLOPEN | CC_ANYCOLOR | CC_ENABLEHOOK;
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win32_params.lCustData = (LPARAM)picker;
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win32_params.lpfnHook = color_picker_hook;
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if(ChooseColorW(&win32_params))
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{
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color = int_color_from_colorref(win32_params.rgbResult, color);
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}
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if(picker->dest)
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{
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*picker->dest = color;
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}
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if(picker->finished)
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{
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*picker->finished = true;
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}
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system_memory_free(picker, sizeof(*picker));
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return(0);
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}
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internal
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system_open_color_picker_sig(){
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// TODO(allen): review
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// NOTE(casey): Because this is going to be used by a semi-permanent thread, we need to
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// copy it to system memory where it can live as long as it wants, no matter what we do
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// over here on the 4coder threads.
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Color_Picker *perm = (Color_Picker*)system_memory_allocate(sizeof(Color_Picker));
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*perm = *picker;
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HANDLE ThreadHandle = CreateThread(0, 0, color_picker_thread, perm, 0, 0);
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CloseHandle(ThreadHandle);
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}
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internal
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system_get_screen_scale_factor_sig(){
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return(win32vars.screen_scale_factor);
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}
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// BOTTOM
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