/* TODO : This is not a final platform layer - Saved game locations - Getting a handle to our own executable file - Asset loading path - Threading (launch a thread) - Raw Input (support for multiple keyboards) - Sleep / timeBeginPeriod - ClipCursor() (for multimonitor support) - Fullscreen support - WM_SETCURSOR (control cursor visibility) - QueryCancelAutoplay - WM_ACTIVATEAPP (for when not active) - Blit speed improvemnts (BitBlt) - Hardware acceleration ( OpenGL or Direct3D or both ) - GetKeyboardLayout (for French keyboards, international WASD support) */ #ifdef __clang__ #pragma clang diagnostic push #pragma clang diagnostic ignored "-Wunused-const-variable" #pragma clang diagnostic ignored "-Wswitch" #pragma clang diagnostic ignored "-Wunused-variable" #pragma clang diagnostic ignored "-Wunknown-pragmas" #pragma clang diagnostic ignored "-Wvarargs" #pragma clang diagnostic ignored "-Wunused-function" #pragma clang diagnostic ignored "-Wunused-but-set-variable" #endif #include // TODO : Implement math ourselves #include "engine.cpp" // Platform Layer headers #include "platform.h" #include "jsl.h" // Using this to get dualsense controllers #include "win32.h" #include // Engine layer headers #include "engine.h" // TOOD(Ed): Redo these macros properly later. #define congrats( message ) do { \ JslSetLightColour( 0, (255 << 16) | (215 << 8) ); \ MessageBoxA( 0, message, "Congratulations!", MB_OK | MB_ICONEXCLAMATION ); \ JslSetLightColour( 0, (255 << 8 ) ); \ } while (0) #define ensure( condition, message ) ensure_impl( condition, message ) inline bool ensure_impl( bool condition, char const* message ) { if ( ! condition ) { JslSetLightColour( 0, (255 << 16) ); MessageBoxA( 0, message, "Ensure Failure", MB_OK | MB_ICONASTERISK ); JslSetLightColour( 0, ( 255 << 8 ) ); } return condition; } #define fatal(message) do { \ JslSetLightColour( 0, (255 << 16) ); \ MessageBoxA( 0, message, "Fatal Error", MB_OK | MB_ICONERROR ); \ JslSetLightColour( 0, (255 << 8 ) ); \ } while (0) NS_PLATFORM_BEGIN using namespace win32; // TODO(Ed) : This is a global for now. global bool Running; struct OffscreenBuffer { BITMAPINFO Info; char _PAD_[4]; void* Memory; // Lets use directly mess with the "pixel's memory buffer" s32 Width; s32 Height; s32 Pitch; s32 BytesPerPixel; }; struct WinDimensions { u32 Width; u32 Height; }; // TODO : This will def need to be looked over. struct SoundOutput { DWORD IsPlaying; u32 RunningSampleIndex; s32 LatencySampleCount; }; HRESULT WINAPI DirectSoundCreate(LPGUID lpGuid, LPDIRECTSOUND* ppDS, LPUNKNOWN pUnkOuter ); using DirectSoundCreateFn = HRESULT WINAPI (LPGUID lpGuid, LPDIRECTSOUND* ppDS, LPUNKNOWN pUnkOuter ); global DirectSoundCreateFn* direct_sound_create; global OffscreenBuffer BackBuffer; global WinDimensions WindowDimensions; global LPDIRECTSOUNDBUFFER DS_SecondaryBuffer; global s32 DS_SecondaryBuffer_Size; global s32 DS_SecondaryBuffer_SamplesPerSecond; global s32 DS_SecondaryBuffer_BytesPerSample; global s16* SoundBufferSamples; #if Build_Debug void debug_file_free_content( Debug_FileContent* content ) { if ( content->Data) { VirtualFree( content->Data, 0, MEM_Release); *content = {}; } } Debug_FileContent debug_file_read_content( char* file_path ) { Debug_FileContent result {}; HANDLE file_handle = CreateFileA( file_path , GENERIC_READ, FILE_SHARE_READ, 0 , OPEN_EXISTING, 0, 0 ); if ( file_handle == INVALID_HANDLE_VALUE ) { // TODO(Ed) : Logging return result; } GetFileSizeEx( file_handle, rcast(LARGE_INTEGER*, &result.Size) ); if ( result.Size == 0 ) { // TODO(Ed) : Logging return result; } result.Data = VirtualAlloc( 0, result.Size, MEM_Commit_Zeroed | MEM_Reserve, Page_Read_Write ); u32 bytes_read; if ( ReadFile( file_handle, result.Data, result.Size, rcast(LPDWORD, &bytes_read), 0 ) == false ) { // TODO(Ed) : Logging return {}; } if ( bytes_read != result.Size ) { // TODO : Logging return {}; } CloseHandle( file_handle ); return result; } b32 debug_file_write_content( char* file_path, u32 content_size, void* content_memory ) { HANDLE file_handle = CreateFileA( file_path , GENERIC_WRITE, 0, 0 , CREATE_ALWAYS, 0, 0 ); if ( file_handle == INVALID_HANDLE_VALUE ) { // TODO : Logging return false; } DWORD bytes_written; if ( WriteFile( file_handle, content_memory, content_size, & bytes_written, 0 ) == false ) { // TODO : Logging return false; } CloseHandle( file_handle ); return true; } #endif internal void init_sound(HWND window_handle, s32 samples_per_second, s32 buffer_size ) { // Load library HMODULE sound_library = LoadLibraryA( "dsound.dll" ); if ( ! ensure(sound_library, "Failed to load direct sound library" ) ) { // TOOD : Diagnostic return; } // Get direct sound object #pragma warning( push ) #pragma warning( disable: 4191 ) direct_sound_create = rcast( DirectSoundCreateFn*, GetProcAddress( sound_library, "DirectSoundCreate" )); if ( ! ensure( direct_sound_create, "Failed to get direct_sound_create_procedure" ) ) { // TOOD : Diagnostic return; } #pragma warning( pop ) LPDIRECTSOUND direct_sound; if ( ! SUCCEEDED(direct_sound_create( 0, & direct_sound, 0 )) ) { // TODO : Diagnostic } if ( ! SUCCEEDED( direct_sound->SetCooperativeLevel(window_handle, DSSCL_PRIORITY) ) ) { // TODO : Diagnostic } WAVEFORMATEX wave_format {}; wave_format.wFormatTag = WAVE_FORMAT_PCM; /* format type */ wave_format.nChannels = 2; /* number of channels (i.e. mono, stereo...) */ wave_format.nSamplesPerSec = scast(u32, samples_per_second); /* sample rate */ wave_format.wBitsPerSample = 16; /* number of bits per sample of mono data */ wave_format.nBlockAlign = wave_format.nChannels * wave_format.wBitsPerSample / 8 ; /* block size of data */ wave_format.nAvgBytesPerSec = wave_format.nSamplesPerSec * wave_format.nBlockAlign; /* for buffer estimation */ wave_format.cbSize = 0; /* the count in bytes of the size of */ LPDIRECTSOUNDBUFFER primary_buffer; { DSBUFFERDESC buffer_description { sizeof(buffer_description) }; buffer_description.dwFlags = DSBCAPS_PRIMARYBUFFER; buffer_description.dwBufferBytes = 0; if ( ! SUCCEEDED( direct_sound->CreateSoundBuffer( & buffer_description, & primary_buffer, 0 ) )) { // TODO : Diagnostic } if ( ! SUCCEEDED( primary_buffer->SetFormat( & wave_format ) ) ) { // TODO : Diagnostic } } DSBUFFERDESC buffer_description { sizeof(buffer_description) }; buffer_description.dwFlags = 0; buffer_description.dwBufferBytes = buffer_size; buffer_description.lpwfxFormat = & wave_format; if ( ! SUCCEEDED( direct_sound->CreateSoundBuffer( & buffer_description, & DS_SecondaryBuffer, 0 ) )) { // TODO : Diagnostic } if ( ! SUCCEEDED( DS_SecondaryBuffer->SetFormat( & wave_format ) ) ) { // TODO : Diagnostic } } internal void ds_clear_sound_buffer( SoundOutput* sound_output ) { LPVOID region_1; DWORD region_1_size; LPVOID region_2; DWORD region_2_size; HRESULT ds_lock_result = DS_SecondaryBuffer->Lock( 0, DS_SecondaryBuffer_Size , & region_1, & region_1_size , & region_2, & region_2_size , 0 ); if ( ! SUCCEEDED( ds_lock_result ) ) { return; } u8* sample_out = rcast( u8*, region_1 ); for ( DWORD byte_index = 0; byte_index < region_1_size; ++ byte_index ) { *sample_out = 0; ++ sample_out; } sample_out = rcast( u8*, region_2 ); for ( DWORD byte_index = 0; byte_index < region_2_size; ++ byte_index ) { *sample_out = 0; ++ sample_out; } if ( ! SUCCEEDED( DS_SecondaryBuffer->Unlock( region_1, region_1_size, region_2, region_2_size ) )) { return; } } internal void ds_fill_sound_buffer( SoundOutput* sound_output, DWORD byte_to_lock, DWORD bytes_to_write, engine::SoundBuffer* sound_buffer ) { LPVOID region_1; DWORD region_1_size; LPVOID region_2; DWORD region_2_size; HRESULT ds_lock_result = DS_SecondaryBuffer->Lock( byte_to_lock, bytes_to_write , & region_1, & region_1_size , & region_2, & region_2_size , 0 ); if ( ! SUCCEEDED( ds_lock_result ) ) { return; } // TODO : Assert that region sizes are valid DWORD region_1_sample_count = region_1_size / DS_SecondaryBuffer_BytesPerSample; s16* sample_out = rcast( s16*, region_1 ); s16* sample_in = sound_buffer->Samples; for ( DWORD sample_index = 0; sample_index < region_1_sample_count; ++ sample_index ) { *sample_out = *sample_in; ++ sample_out; ++ sample_in; *sample_out = *sample_in; ++ sample_out; ++ sample_in; ++ sound_output->RunningSampleIndex; } DWORD region_2_sample_count = region_2_size / DS_SecondaryBuffer_BytesPerSample; sample_out = rcast( s16*, region_2 ); for ( DWORD sample_index = 0; sample_index < region_2_sample_count; ++ sample_index ) { *sample_out = *sample_in; ++ sample_out; ++ sample_in; *sample_out = *sample_in; ++ sample_out; ++ sample_in; ++ sound_output->RunningSampleIndex; } if ( ! SUCCEEDED( DS_SecondaryBuffer->Unlock( region_1, region_1_size, region_2, region_2_size ) )) { return; } } internal WinDimensions get_window_dimensions( HWND window_handle ) { RECT client_rect; GetClientRect( window_handle, & client_rect ); WinDimensions result; result.Width = client_rect.right - client_rect.left; result.Height = client_rect.bottom - client_rect.top; return result; } internal void resize_dib_section( OffscreenBuffer* buffer, u32 width, u32 height ) { // TODO(Ed) : Bulletproof memory handling here for the bitmap memory if ( buffer->Memory ) { VirtualFree( buffer->Memory, 0, MEM_RELEASE ); } buffer->Width = width; buffer->Height = height; buffer->BytesPerPixel = 4; buffer->Pitch = buffer->Width * buffer->BytesPerPixel; // Negative means top-down in the context of the biHeight # define Top_Down - BITMAPINFOHEADER& header = buffer->Info.bmiHeader; header.biSize = sizeof( buffer->Info.bmiHeader ); header.biWidth = buffer->Width; header.biHeight = Top_Down buffer->Height; header.biPlanes = 1; header.biBitCount = 32; // Need 24, but want 32 ( alignment ) header.biCompression = BI_RGB_Uncompressed; // header.biSizeImage = 0; // header.biXPelsPerMeter = 0; // header.biYPelsPerMeter = 0; // header.biClrUsed = 0; // header.biClrImportant = 0; # undef Top_Down // We want to "touch" a pixel on every 4-byte boundary u32 BitmapMemorySize = (buffer->Width * buffer->Height) * buffer->BytesPerPixel; buffer->Memory = VirtualAlloc( NULL, BitmapMemorySize, MEM_Commit_Zeroed | MEM_Reserve, Page_Read_Write ); // TODO(Ed) : Clear to black } internal void display_buffer_in_window( HDC device_context, u32 window_width, u32 window_height, OffscreenBuffer* buffer , u32 x, u32 y , u32 width, u32 height ) { // TODO(Ed) : Aspect ratio correction StretchDIBits( device_context #if 0 , x, y, width, height , x, y, width, height #endif , 0, 0, window_width, window_height , 0, 0, buffer->Width, buffer->Height , buffer->Memory, & buffer->Info , DIB_ColorTable_RGB, RO_Source_To_Dest ); } internal LRESULT CALLBACK main_window_callback( HWND handle, UINT system_messages, WPARAM w_param, LPARAM l_param ) { LRESULT result = 0; switch ( system_messages ) { case WM_ACTIVATEAPP: { OutputDebugStringA( "WM_ACTIVATEAPP\n" ); } break; case WM_CLOSE: { // TODO(Ed) : Handle with a message to the user Running = false; } break; case WM_DESTROY: { // TODO(Ed) : Handle with as an error and recreate the window Running = false; } break; case WM_PAINT: { PAINTSTRUCT info; HDC device_context = BeginPaint( handle, & info ); u32 x = info.rcPaint.left; u32 y = info.rcPaint.top; u32 width = info.rcPaint.right - info.rcPaint.left; u32 height = info.rcPaint.bottom - info.rcPaint.top; WinDimensions dimensions = get_window_dimensions( handle ); display_buffer_in_window( device_context, dimensions.Width, dimensions.Height, &BackBuffer , x, y , width, height ); EndPaint( handle, & info ); } break; case WM_SIZE: { } break; default: { result = DefWindowProc( handle, system_messages, w_param, l_param ); } } return result; } internal void input_process_digital_btn( engine::DigitalBtn* old_state, engine::DigitalBtn* new_state, u32 raw_btns, u32 btn_flag ) { #define had_transition() ( old_state->State == new_state->State ) new_state->State = (raw_btns & btn_flag); new_state->HalfTransitions = had_transition() ? 1 : 0; #undef had_transition } internal void input_process_keyboard_key( engine::DigitalBtn* key, b32 is_down ) { key->State = is_down; key->HalfTransitions += is_down; } NS_PLATFORM_END int CALLBACK WinMain( HINSTANCE instance, HINSTANCE prev_instance, LPSTR commandline, int show_command ) { using namespace win32; using namespace platform; // Memory engine::Memory engine_memory {}; { engine_memory.PersistentSize = megabytes( 64 ); // engine_memory.FrameSize = megabytes( 64 ); engine_memory.TransientSize = gigabytes( 2 ); u64 total_size = engine_memory.PersistentSize // + engine_memory.FrameSize + engine_memory.TransientSize; #if Build_Debug void* Base_Address = (void*) terabytes( 1 ); // void* Frame_Address = (void*) terabytes( 2 ); // void* Transient_Address = (void*) terabytes( 2 ); #else void* Base_Address = 0; // void* Frame_Address = 0; // void* Transient_Address = 0; #endif engine_memory.Persistent = VirtualAlloc( Base_Address, total_size , MEM_Commit_Zeroed | MEM_Reserve, Page_Read_Write ); engine_memory.Transient = rcast( u8*, engine_memory.Persistent ) + engine_memory.PersistentSize; #if 0 engine_memory.Frame = VirtualAlloc( 0, engine_memory.FrameSize , MEM_Commit_Zeroed | MEM_Reserve, Page_Read_Write ); engine_memory.Transient = VirtualAlloc( 0, engine_memory.TransientSize , MEM_Commit_Zeroed | MEM_Reserve, Page_Read_Write ); #endif if ( engine_memory.Persistent == nullptr // || ! engine_memory.Frame || engine_memory.Transient == nullptr ) { // TODO : Diagnostic Logging return -1; } } // MessageBox( 0, L"First message!", L"Handmade Hero", MB_Ok_Btn | MB_Icon_Information ); WNDCLASSW window_class {}; HWND window_handle = nullptr; MSG window_msg_info; { window_class.style = CS_Horizontal_Redraw | CS_Vertical_Redraw; window_class.lpfnWndProc = main_window_callback; // window_class.cbClsExtra = ; // window_class.cbWndExtra = ; window_class.hInstance = instance; // window_class.hIcon = ; // window_class.hCursor = ; // window_class.hbrBackground = ; window_class.lpszMenuName = L"Handmade Hero!"; window_class.lpszClassName = L"HandmadeHeroWindowClass"; if ( ! RegisterClassW( & window_class ) ) { // TODO : Diagnostic Logging return 0; } window_handle = CreateWindowExW( 0, window_class.lpszClassName, L"Handmade Hero", WS_Overlapped_Window | WS_Initially_Visible, CW_Use_Default, CW_Use_Default, // x, y CW_Use_Default, CW_Use_Default, // width, height 0, 0, // parent, menu instance, 0 // instance, param ); if ( ! window_handle ) { // TODO : Diagnostic Logging return 0; } } // WinDimensions dimensions = get_window_dimensions( window_handle ); resize_dib_section( &BackBuffer, 1280, 720 ); SoundOutput sound_output; { sound_output.IsPlaying = 0; DS_SecondaryBuffer_SamplesPerSecond = 48000; DS_SecondaryBuffer_BytesPerSample = sizeof(s16) * 2; DS_SecondaryBuffer_Size = DS_SecondaryBuffer_SamplesPerSecond * DS_SecondaryBuffer_BytesPerSample; init_sound( window_handle, DS_SecondaryBuffer_SamplesPerSecond, DS_SecondaryBuffer_Size ); SoundBufferSamples = rcast( s16*, VirtualAlloc( 0, 48000 * 2 * sizeof(s16) , MEM_Commit_Zeroed | MEM_Reserve, Page_Read_Write )); assert( SoundBufferSamples ); sound_output.RunningSampleIndex = 0; sound_output.LatencySampleCount = DS_SecondaryBuffer_SamplesPerSecond / 15; // ds_clear_sound_buffer( & sound_output ); DS_SecondaryBuffer->Play( 0, 0, DSBPLAY_LOOPING ); } // Timing u64 perf_counter_frequency; u64 last_frame_time; QueryPerformanceFrequency( rcast(LARGE_INTEGER*, & perf_counter_frequency) ); QueryPerformanceCounter( rcast(LARGE_INTEGER*, & last_frame_time) ); u64 last_cycle_time = __rdtsc(); // Input shitshow constexpr u32 Max_Controllers = 4; // Max controllers for the platform layer and thus for all other layers is 4. (Sanity and xinput limit) engine::InputState input {}; engine::KeyboardState keyboard; input.Controllers[0].Keyboard = & keyboard; // Important: Assuming keyboard always connected for now, and assigning to first controller. using EngineXInputPadStates = engine::XInputPadState[ Max_Controllers ]; EngineXInputPadStates xpad_states[2]; EngineXInputPadStates* old_xpads = & xpad_states[0]; EngineXInputPadStates* new_xpads = & xpad_states[1]; using EngineDSPadStates = engine::DualsensePadState[Max_Controllers]; EngineDSPadStates ds_pad_states[2]; EngineDSPadStates* old_ds_pads = & ds_pad_states[0]; EngineDSPadStates* new_ds_pads = & ds_pad_states[1]; using JSL_DeviceHandle = int; u32 jsl_num_devices = JslConnectDevices(); // = 0; JSL_DeviceHandle jsl_device_handles[4] {}; { xinput_load_library_bindings(); u32 jsl_getconnected_found = JslGetConnectedDeviceHandles( jsl_device_handles, jsl_num_devices ); { if ( jsl_getconnected_found != jsl_num_devices ) { OutputDebugStringA( "Error: JSLGetConnectedDeviceHandles didn't find as many as were stated with JslConnectDevices\n"); } if ( jsl_num_devices > 0 ) { OutputDebugStringA( "JSL Connected Devices:\n" ); for ( u32 jsl_device_index = 0; jsl_device_index < jsl_num_devices; ++ jsl_device_index ) { JslSetLightColour( jsl_device_handles[ jsl_device_index ], (255 << 8) ); } } } if ( jsl_num_devices > 4 ) { jsl_num_devices = 4; MessageBoxA( window_handle, "More than 4 JSL devices found, this engine will only support the first four found.", "Warning", MB_ICONEXCLAMATION ); } } Running = true; while( Running ) { keyboard = {}; // Window Management { while ( PeekMessageW( & window_msg_info, 0, 0, 0, PM_Remove_Messages_From_Queue ) ) { if ( window_msg_info.message == WM_QUIT ) { OutputDebugStringA("WM_QUIT\n"); Running = false; } // Keyboard input handling switch (window_msg_info.message) { case WM_SYSKEYDOWN: case WM_SYSKEYUP: case WM_KEYDOWN: case WM_KEYUP: { WPARAM vk_code = window_msg_info.wParam; b32 is_down = scast(b32, (window_msg_info.lParam >> 31) == 0 ); b32 was_down = scast(b32, (window_msg_info.lParam >> 30) ); b32 alt_down = scast(b32, (window_msg_info.lParam & (1 << 29)) ); switch ( vk_code ) { case 'Q': { input_process_keyboard_key( & keyboard.Q, is_down ); } break; case 'E': { input_process_keyboard_key( & keyboard.E, is_down ); } break; case 'W': { input_process_keyboard_key( & keyboard.W, is_down ); } break; case 'A': { input_process_keyboard_key( & keyboard.A, is_down ); } break; case 'S': { input_process_keyboard_key( & keyboard.S, is_down ); } break; case 'D': { input_process_keyboard_key( & keyboard.D, is_down ); } break; case VK_ESCAPE: { input_process_keyboard_key( & keyboard.Esc, is_down ); } break; case VK_UP: { input_process_keyboard_key( & keyboard.Up, is_down ); } break; case VK_DOWN: { input_process_keyboard_key( & keyboard.Down, is_down ); } break; case VK_LEFT: { input_process_keyboard_key( & keyboard.Left, is_down ); } break; case VK_RIGHT: { input_process_keyboard_key( & keyboard.Right, is_down ); } break; case VK_SPACE: { input_process_keyboard_key( & keyboard.Space, is_down ); } break; case VK_F4: { if ( alt_down ) Running = false; } break; } } break; default: TranslateMessage( & window_msg_info ); DispatchMessageW( & window_msg_info ); } } } // Input { // Swapping at the beginning of the input frame instead of the end. swap( old_xpads, new_xpads ); swap( old_ds_pads, new_ds_pads ); // XInput Polling // TODO(Ed) : Should we poll this more frequently? for ( DWORD controller_index = 0; controller_index < Max_Controllers; ++ controller_index ) { XINPUT_STATE controller_state; b32 xinput_detected = xinput_get_state( controller_index, & controller_state ) == XI_PluggedIn; if ( xinput_detected ) { XINPUT_GAMEPAD* xpad = & controller_state.Gamepad; engine::XInputPadState* old_xpad = old_xpads[ controller_index ]; engine::XInputPadState* new_xpad = new_xpads[ controller_index ]; input_process_digital_btn( & old_xpad->DPad.Up, & new_xpad->DPad.Up, xpad->wButtons, XINPUT_GAMEPAD_DPAD_UP ); input_process_digital_btn( & old_xpad->DPad.Down, & new_xpad->DPad.Down, xpad->wButtons, XINPUT_GAMEPAD_DPAD_DOWN ); input_process_digital_btn( & old_xpad->DPad.Left, & new_xpad->DPad.Left, xpad->wButtons, XINPUT_GAMEPAD_DPAD_LEFT ); input_process_digital_btn( & old_xpad->DPad.Right, & new_xpad->DPad.Right, xpad->wButtons, XINPUT_GAMEPAD_DPAD_RIGHT ); input_process_digital_btn( & old_xpad->Y, & new_xpad->Y, xpad->wButtons, XINPUT_GAMEPAD_Y ); input_process_digital_btn( & old_xpad->A, & new_xpad->A, xpad->wButtons, XINPUT_GAMEPAD_A ); input_process_digital_btn( & old_xpad->B, & new_xpad->B, xpad->wButtons, XINPUT_GAMEPAD_B ); input_process_digital_btn( & old_xpad->X, & new_xpad->X, xpad->wButtons, XINPUT_GAMEPAD_X ); input_process_digital_btn( & old_xpad->Back, & new_xpad->Back, xpad->wButtons, XINPUT_GAMEPAD_BACK ); input_process_digital_btn( & old_xpad->Start, & new_xpad->Start, xpad->wButtons, XINPUT_GAMEPAD_START ); input_process_digital_btn( & old_xpad->LeftShoulder, & new_xpad->LeftShoulder, xpad->wButtons, XINPUT_GAMEPAD_LEFT_SHOULDER ); input_process_digital_btn( & old_xpad->RightShoulder, & new_xpad->RightShoulder, xpad->wButtons, XINPUT_GAMEPAD_RIGHT_SHOULDER ); new_xpad->Stick.Left.X.Start = old_xpad->Stick.Left.X.End; new_xpad->Stick.Left.Y.Start = old_xpad->Stick.Left.Y.End; // TODO(Ed) : Compress this into a proc f32 X; if ( xpad->sThumbLX < 0 ) { X = scast(f32, xpad->sThumbLX) / scast(f32, -S16_MIN); } else { X = scast(f32, xpad->sThumbLX) / scast(f32, S16_MAX); } // TODO(Ed) : Min/Max macros!!! new_xpad->Stick.Left.X.Min = new_xpad->Stick.Left.X.Max = new_xpad->Stick.Left.X.End = X; f32 Y; if ( xpad->sThumbLY < 0 ) { Y = scast(f32, xpad->sThumbLY) / scast(f32, -S16_MIN); } else { Y = scast(f32, xpad->sThumbLY) / scast(f32, S16_MAX); } // TODO(Ed) : Min/Max macros!!! new_xpad->Stick.Left.Y.Min = new_xpad->Stick.Left.Y.Max = new_xpad->Stick.Left.Y.End = Y; // epad->Stick.Left.X.End = xpad->sThumbLX; // epad->Stick.Left.Y.End = xpad->sThumbLY; // epad->Stick.Right.X.End = xpad->sThumbRX; // epad->Stick.Right.X.End = xpad->sThumbRY; // TODO(Ed) : Dead zone processing!!!!!!!!!!!!!!! // XINPUT_GAMEPAD_LEFT_THUMB_DEADZONE // XINPUT_GAMEPAD_RIGHT_THUMB_DEADZONE // S16_MAX // S16_MIN input.Controllers[ controller_index ].XPad = new_xpad; } else { input.Controllers[ controller_index ].XPad = nullptr; } } // JSL Input Polling for ( u32 jsl_device_index = 0; jsl_device_index < jsl_num_devices; ++ jsl_device_index ) { if ( ! JslStillConnected( jsl_device_handles[ jsl_device_index ] ) ) { OutputDebugStringA( "Error: JSLStillConnected returned false\n" ); continue; } // TODO : Won't support more than 4 for now... (or prob ever) if ( jsl_device_index > 4 ) break; JOY_SHOCK_STATE state = JslGetSimpleState( jsl_device_handles[ jsl_device_index ] ); engine::DualsensePadState* old_ds_pad = old_ds_pads[ jsl_device_index ]; engine::DualsensePadState* new_ds_pad = new_ds_pads[ jsl_device_index ]; input_process_digital_btn( & old_ds_pad->DPad.Up, & new_ds_pad->DPad.Up, state.buttons, JSMASK_UP ); input_process_digital_btn( & old_ds_pad->DPad.Down, & new_ds_pad->DPad.Down, state.buttons, JSMASK_DOWN ); input_process_digital_btn( & old_ds_pad->DPad.Left, & new_ds_pad->DPad.Left, state.buttons, JSMASK_LEFT ); input_process_digital_btn( & old_ds_pad->DPad.Right, & new_ds_pad->DPad.Right, state.buttons, JSMASK_RIGHT ); input_process_digital_btn( & old_ds_pad->Triangle, & new_ds_pad->Triangle, state.buttons, JSMASK_N ); input_process_digital_btn( & old_ds_pad->X, & new_ds_pad->X, state.buttons, JSMASK_S ); input_process_digital_btn( & old_ds_pad->Square, & new_ds_pad->Square, state.buttons, JSMASK_W ); input_process_digital_btn( & old_ds_pad->Circle, & new_ds_pad->Circle, state.buttons, JSMASK_E ); input_process_digital_btn( & old_ds_pad->Share, & new_ds_pad->Share, state.buttons, JSMASK_SHARE ); input_process_digital_btn( & old_ds_pad->Options, & new_ds_pad->Options, state.buttons, JSMASK_OPTIONS ); input_process_digital_btn( & old_ds_pad->L1, & new_ds_pad->L1, state.buttons, JSMASK_L ); input_process_digital_btn( & old_ds_pad->R1, & new_ds_pad->R1, state.buttons, JSMASK_R ); // epad->Stick.Left.X.End = state.stickLX; // epad->Stick.Left.Y.End = state.stickLY; // epad->Stick.Right.X.End = state.stickRX; // epad->Stick.Right.X.End = state.stickRY; input.Controllers[ jsl_device_index ].DSPad = new_ds_pad; } } // Pain... b32 sound_is_valid = false; DWORD ds_play_cursor; DWORD ds_write_cursor; DWORD byte_to_lock = 0; DWORD bytes_to_write = 0; if ( SUCCEEDED( DS_SecondaryBuffer->GetCurrentPosition( & ds_play_cursor, & ds_write_cursor ) )) { byte_to_lock = (sound_output.RunningSampleIndex * DS_SecondaryBuffer_BytesPerSample) % DS_SecondaryBuffer_Size; DWORD target_cursor = (ds_play_cursor + (sound_output.LatencySampleCount * DS_SecondaryBuffer_BytesPerSample)) % DS_SecondaryBuffer_Size; if ( byte_to_lock > target_cursor) { // Infront of play cursor |--play--byte_to_write-->--| bytes_to_write = DS_SecondaryBuffer_Size - byte_to_lock; bytes_to_write += target_cursor; } else { // Behind play cursor |--byte_to_write-->--play--| bytes_to_write = target_cursor - byte_to_lock; } sound_is_valid = true; } // s16 samples[ 48000 * 2 ]; engine::SoundBuffer sound_buffer {}; sound_buffer.NumSamples = bytes_to_write / DS_SecondaryBuffer_BytesPerSample; sound_buffer.RunningSampleIndex = sound_output.RunningSampleIndex; sound_buffer.SamplesPerSecond = DS_SecondaryBuffer_SamplesPerSecond; sound_buffer.Samples = SoundBufferSamples; engine::update_and_render( & input, rcast(engine::OffscreenBuffer*, & BackBuffer.Memory), & sound_buffer, & engine_memory ); // Rendering { WinDimensions dimensions = get_window_dimensions( window_handle ); HDC device_context = GetDC( window_handle ); display_buffer_in_window( device_context, dimensions.Width, dimensions.Height, &BackBuffer , 0, 0 , dimensions.Width, dimensions.Height ); } // Audio do { DWORD ds_status = 0; if ( SUCCEEDED( DS_SecondaryBuffer->GetStatus( & ds_status ) ) ) { sound_output.IsPlaying = ds_status & DSBSTATUS_PLAYING; } if ( ! sound_is_valid ) break; ds_fill_sound_buffer( & sound_output, byte_to_lock, bytes_to_write, & sound_buffer ); if ( sound_output.IsPlaying ) break; DS_SecondaryBuffer->Play( 0, 0, DSBPLAY_LOOPING ); } while(0); u64 end_cycle_count = __rdtsc(); u64 frame_cycle_time_end; QueryPerformanceCounter( rcast( LARGE_INTEGER*, & frame_cycle_time_end) ); // TODO : Display value here #define MS_PER_SECOND 1000 #define MegaCycles_Per_Second (1000 * 1000) u64 cycles_elapsed = end_cycle_count - last_cycle_time; u64 mega_cycles_elapsed = cycles_elapsed / MegaCycles_Per_Second; u64 frame_time_elapsed = frame_cycle_time_end - last_frame_time; u32 ms_per_frame = scast(u32, MS_PER_SECOND * frame_time_elapsed / perf_counter_frequency); u32 fps = scast(u32, perf_counter_frequency / frame_time_elapsed); // char ms_timing_debug[256] {}; // wsprintfA( ms_timing_debug, "%d ms\n" "FPS: %d\n" "mega cycles: %d\n", ms_per_frame, fps, mega_cycles_elapsed ); // OutputDebugStringA( ms_timing_debug ); last_cycle_time = end_cycle_count; last_frame_time = frame_cycle_time_end; } if ( jsl_num_devices > 0 ) { for ( u32 jsl_device_index = 0; jsl_device_index < jsl_num_devices; ++ jsl_device_index ) { JslSetLightColour( jsl_device_handles[ jsl_device_index ], 0 ); } } return 0; }