587 lines
18 KiB
C++
587 lines
18 KiB
C++
#include <Winsock2.h>
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#include <ws2tcpip.h>
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#include <intrin.h>
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#include <windowsx.h>
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#include <gl/gl.h>
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#include "foldhaus_platform.h"
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#include "gs_win32.cpp"
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#include "foldhaus_renderer.cpp"
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global_variable b32 Running = false;
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global_variable b32 WindowIsActive = false;
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char DLLName[] = "foldhaus.dll";
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char WorkingDLLName[] = "foldhaus_temp.dll";
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char DLLLockFileName[] = "lock.tmp";
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window MainWindow;
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struct worker_thread_entry
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{
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b32 IsValid;
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u32 Index;
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};
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struct worker_thread_info
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{
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s32 ID;
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HANDLE Handle;
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work_queue* Queue;
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};
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PUSH_WORK_ON_QUEUE(Win32PushWorkOnQueue)
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{
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Assert(Queue->JobsCount < Queue->JobsMax);
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worker_thread_job* Job = Queue->Jobs + Queue->JobsCount;
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Job->WorkProc = WorkProc;
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Job->Data = Data;
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// Complete Past Writes before Future Writes
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_WriteBarrier();
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_mm_sfence();
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++Queue->JobsCount;
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ReleaseSemaphore(Queue->SemaphoreHandle, 1, 0);
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}
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internal worker_thread_entry
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CompleteAndTakeNextJob(work_queue* Queue, worker_thread_entry Completed)
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{
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if (Completed.IsValid)
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{
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InterlockedIncrement((LONG volatile*)&Queue->JobsCompleted);
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}
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worker_thread_entry Result = {};
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Result.IsValid = false;
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u32 OriginalNextJobIndex = Queue->NextJobIndex;
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while (OriginalNextJobIndex < Queue->JobsCount)
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{
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u32 Index = InterlockedCompareExchange((LONG volatile*)&Queue->NextJobIndex,
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OriginalNextJobIndex + 1,
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OriginalNextJobIndex);
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if (Index == OriginalNextJobIndex)
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{
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Result.Index = Index;
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Result.IsValid = true;
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break;
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}
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OriginalNextJobIndex = Queue->NextJobIndex;
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}
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return Result;
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}
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DO_QUEUE_WORK_UNTIL_DONE(Win32DoQueueWorkUntilDone)
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{
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worker_thread_entry Entry = {};
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Entry.IsValid = false;
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while (Queue->JobsCompleted < Queue->JobsCount)
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{
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Entry = CompleteAndTakeNextJob(Queue, Entry);
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if (Entry.IsValid)
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{
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Queue->Jobs[Entry.Index].WorkProc(ThreadID, Queue->Jobs[Entry.Index].Data);
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}
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}
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}
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DWORD WINAPI
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WorkerThreadProc (LPVOID InputThreadInfo)
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{
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worker_thread_info* ThreadInfo = (worker_thread_info*)InputThreadInfo;
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worker_thread_entry Entry = {};
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Entry.IsValid = false;
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while (true)
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{
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Entry = CompleteAndTakeNextJob(ThreadInfo->Queue, Entry);
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if (Entry.IsValid)
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{
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ThreadInfo->Queue->Jobs[Entry.Index].WorkProc(ThreadInfo->ID,
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ThreadInfo->Queue->Jobs[Entry.Index].Data);
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}
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else
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{
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WaitForSingleObjectEx(ThreadInfo->Queue->SemaphoreHandle, INFINITE, 0);
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}
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}
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return 0;
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}
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PLATFORM_GET_GPU_TEXTURE_HANDLE(Win32GetGPUTextureHandle)
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{
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s32 Handle = SubmitTexture(Memory, Width, Height);
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return Handle;
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}
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struct win32_socket
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{
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SOCKET Socket;
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};
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#define SOCKET_DICTIONARY_GROW_SIZE 32
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s32 Win32SocketHandleMax;
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s32 Win32SocketHandleCount;
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win32_socket* SocketValues;
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PLATFORM_GET_SOCKET_HANDLE(Win32GetSocketHandle)
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{
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if (Win32SocketHandleCount >= Win32SocketHandleMax)
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{
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s32 NewDictionaryMax = Win32SocketHandleMax + SOCKET_DICTIONARY_GROW_SIZE;
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s32 NewDictionaryDataSize = NewDictionaryMax * sizeof(win32_socket);
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platform_memory_result DictionaryMemory = Win32Alloc(NewDictionaryDataSize);
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Assert(DictionaryMemory.Size > 0);
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win32_socket* NewValues = (win32_socket*)(DictionaryMemory.Base);
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if (SocketValues)
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{
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GSMemCopy(SocketValues, NewValues, sizeof(win32_socket) * NewDictionaryMax);
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Win32Free((u8*)SocketValues, sizeof(win32_socket) * Win32SocketHandleCount);
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}
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SocketValues = NewValues;
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Win32SocketHandleMax = NewDictionaryMax;
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}
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Assert(Win32SocketHandleCount < Win32SocketHandleMax);
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s32 NewSocketIndex = Win32SocketHandleCount++;
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SocketValues[NewSocketIndex].Socket = socket(AddressFamily, Type, Protocol);
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return (platform_socket_handle)NewSocketIndex;
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}
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#define NETWORK_ADDRESS_DICTIONARY_GROW_SIZE 32
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s32 Win32NetworkAddressHandleMax;
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s32 Win32NetworkAddressHandleCount;
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sockaddr_in* NetworkAddressValues;
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PLATFORM_GET_SEND_ADDRESS_HANDLE(Win32GetSendAddress)
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{
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if (Win32NetworkAddressHandleCount >= Win32NetworkAddressHandleMax)
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{
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s32 NewDictionaryMax = Win32NetworkAddressHandleMax + NETWORK_ADDRESS_DICTIONARY_GROW_SIZE;
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s32 NewDictionaryDataSize = NewDictionaryMax * sizeof(sockaddr_in);
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platform_memory_result DictionaryMemory = Win32Alloc(NewDictionaryDataSize);
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Assert(DictionaryMemory.Size > 0);
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sockaddr_in* NewValues = (sockaddr_in*)(DictionaryMemory.Base);
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if (NetworkAddressValues)
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{
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GSMemCopy(NetworkAddressValues, NewValues, sizeof(win32_socket) * NewDictionaryMax);
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Win32Free((u8*)NetworkAddressValues, sizeof(win32_socket) * Win32NetworkAddressHandleCount);
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}
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NetworkAddressValues = NewValues;
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Win32NetworkAddressHandleMax = NewDictionaryMax;
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}
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Assert(Win32NetworkAddressHandleCount < Win32NetworkAddressHandleMax);
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s32 NewAddressIndex = Win32NetworkAddressHandleCount++;
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NetworkAddressValues[NewAddressIndex].sin_family = AddressFamily;
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NetworkAddressValues[NewAddressIndex].sin_port = HostToNetU16(Port);
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NetworkAddressValues[NewAddressIndex].sin_addr.s_addr = HostToNetU32(Address);
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return (platform_network_address_handle)NewAddressIndex;
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}
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PLATFORM_SET_SOCKET_OPTION(Win32SetSocketOption)
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{
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s32 SocketIndex = (s32)SocketHandle;
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Assert(SocketIndex < Win32SocketHandleCount);
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int Error = setsockopt(SocketValues[SocketIndex].Socket, Level, Option, OptionValue, OptionLength);
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if (Error == SOCKET_ERROR)
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{
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Error = WSAGetLastError();
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}
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return Error;
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}
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PLATFORM_SEND_TO(Win32SendTo)
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{
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s32 SocketIndex = (s32)SocketHandle;
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Assert(SocketIndex < Win32SocketHandleCount);
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s32 AddressIndex = (s32)AddressHandle;
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Assert(AddressIndex < Win32NetworkAddressHandleCount);
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s32 LengthSent = sendto(SocketValues[SocketIndex].Socket, Buffer, BufferLength, Flags, (sockaddr*)&NetworkAddressValues[AddressIndex], sizeof(sockaddr_in));
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if (LengthSent == SOCKET_ERROR)
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{
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s32 Error = WSAGetLastError();
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InvalidCodePath;
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}
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return LengthSent;
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}
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PLATFORM_CLOSE_SOCKET(Win32CloseSocket)
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{
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s32 SocketIndex = (s32)SocketHandle;
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Assert(SocketIndex < Win32SocketHandleCount);
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closesocket(SocketValues[SocketIndex].Socket);
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}
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GET_FONT_INFO(Win32GetFontInfo)
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{
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platform_font_info Result = {};
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Result.DrawingDC = CreateCompatibleDC(NULL);
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SetBkColor(Result.DrawingDC, RGB(0, 0, 0));
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SetTextColor(Result.DrawingDC, RGB(255, 255, 255));
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Result.Bitmap = CreateCompatibleBitmap(NULL, PixelHeight * 2, PixelHeight * 2);
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SelectObject(Result.DrawingDC, Result.Bitmap);
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Result.Font= CreateFont(PixelHeight, 0, 0, 0,
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// TODO(Peter): Font weight, need a platform way to request others
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FW_NORMAL,
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FALSE, // Italic
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FALSE, // Underling
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FALSE, // Strikeout,
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ANSI_CHARSET,
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OUT_OUTLINE_PRECIS,
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CLIP_DEFAULT_PRECIS,
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PROOF_QUALITY,
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FIXED_PITCH,
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FontName);
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SelectFont(Result.DrawingDC, Result.Font);
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TEXTMETRIC WindowsFontMetrics = {};
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if (GetTextMetrics(Result.DrawingDC, &WindowsFontMetrics))
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{
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Result.PixelHeight = WindowsFontMetrics.tmHeight;
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Result.Ascent = WindowsFontMetrics.tmAscent;
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Result.Descent = WindowsFontMetrics.tmDescent;
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Result.Leading = WindowsFontMetrics.tmExternalLeading;
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Result.MaxCharWidth = WindowsFontMetrics.tmMaxCharWidth;
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Result.CodepointStart = WindowsFontMetrics.tmFirstChar;
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Result.CodepointOnePastLast = WindowsFontMetrics.tmLastChar + 1;
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}
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return Result;
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}
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DRAW_FONT_CODEPOINT(Win32DrawFontCodepoint)
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{
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}
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LRESULT CALLBACK
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HandleWindowEvents (HWND WindowHandle, UINT Msg, WPARAM WParam, LPARAM LParam)
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{
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LRESULT Result = 0;
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switch (Msg)
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{
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case WM_SIZE:
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{
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Win32UpdateWindowDimension(&MainWindow);
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//Win32ResizeDIBSection(&GlobalBackbuffer, MainWindow.Info.Width, MainWindow.Info.Height);
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}break;
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case WM_CLOSE:
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{
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Result = DefWindowProc(WindowHandle, Msg, WParam, LParam);
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Running = false;
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}break;
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case WM_DESTROY:
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{
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}break;
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case WM_PAINT:
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{
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PAINTSTRUCT PaintStruct;
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HDC DeviceContext;
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b32 PaintResult;
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DeviceContext = BeginPaint(WindowHandle, &PaintStruct);
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PaintResult = EndPaint(WindowHandle, &PaintStruct);
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}break;
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case WM_ACTIVATE:
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{
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WindowIsActive = (LOWORD(WParam) == WA_ACTIVE || LOWORD(WParam) == WA_CLICKACTIVE);
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}break;
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default:
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{
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Result = DefWindowProc(WindowHandle, Msg, WParam, LParam);
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}
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}
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return Result;
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}
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internal void
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HandleWindowMessage (MSG Message, window* Window, input_frame* InputFrame)
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{
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switch (Message.message)
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{
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case WM_MOUSEWHEEL:
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{
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Win32UpdateInputFrameMouseWheelDelta(InputFrame, Message);
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}break;
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case WM_LBUTTONDOWN:
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case WM_LBUTTONUP:
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case WM_MBUTTONDOWN:
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case WM_MBUTTONUP:
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case WM_RBUTTONDOWN:
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case WM_RBUTTONUP:
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{
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Win32UpdateInputFrameMouseState(InputFrame);
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}break;
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case WM_SYSKEYDOWN:
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case WM_SYSKEYUP:
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case WM_KEYDOWN:
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case WM_KEYUP:
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{
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int VirtualKey = (int)Message.wParam;
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bool KeyDown = (Message.lParam & (1 << 31)) == 0;
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int KeyIndex = Win32GetKeyIndex(VirtualKey, true, false);
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if (KeyIndex == WIN32_SHOULD_TRANSLATE_TO_CHAR)
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{
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TranslateMessage(&Message);
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DispatchMessage(&Message);
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}
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else
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{
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InputFrame->KeysDown[KeyIndex] = KeyDown;
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}
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}break;
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case WM_CHAR:
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{
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char Char = (char)Message.wParam;
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InputFrame->StringInput[InputFrame->StringInputUsed++] = Char;
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}break;
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default:
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{
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TranslateMessage(&Message);
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DispatchMessage(&Message);
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}break;
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}
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}
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internal void
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DebugPrint (char* Format, ...)
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{
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char Buffer[256];
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string StringBuffer = MakeString(Buffer, 256);
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va_list Args;
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va_start(Args, Format);
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PrintF(&StringBuffer, Format, Args);
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OutputDebugStringA(Buffer);
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va_end(Args);
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}
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internal void
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SetApplicationLinks (context* Context, win32_dll_refresh DLL, work_queue* WorkQueue)
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{
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if (DLL.IsValid)
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{
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Context->InitializeApplication = (initialize_application*)GetProcAddress(DLL.DLL, "InitializeApplication");
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Context->ReloadStaticData = (reload_static_data*)GetProcAddress(DLL.DLL, "ReloadStaticData");
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Context->UpdateAndRender = (update_and_render*)GetProcAddress(DLL.DLL, "UpdateAndRender");
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Context->CleanupApplication = (cleanup_application*)GetProcAddress(DLL.DLL, "CleanupApplication");
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}
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else
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{
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Context->InitializeApplication = 0;
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Context->ReloadStaticData = 0;
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Context->UpdateAndRender = 0;
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Context->CleanupApplication = 0;
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}
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}
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int WINAPI
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WinMain (
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HINSTANCE HInstance,
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HINSTANCE HPrevInstance,
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PSTR CmdLineArgs,
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INT NCmdShow
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)
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{
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MainWindow = Win32CreateWindow (HInstance, "Foldhaus", 1440, 768, HandleWindowEvents);
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Win32UpdateWindowDimension(&MainWindow);
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win32_opengl_window_info OpenGLWindowInfo = {};
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OpenGLWindowInfo.ColorBits = 32;
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OpenGLWindowInfo.AlphaBits = 8;
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OpenGLWindowInfo.DepthBits = 0;
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CreateOpenGLWindowContext(OpenGLWindowInfo, &MainWindow);
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s64 PerformanceCountFrequency = GetPerformanceFrequency();
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s64 LastFrameEnd = GetWallClock();
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r32 TargetSecondsPerFrame = 1 / 60.0f;
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r32 LastFrameSecondsElapsed = 0.0f;
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GlobalDebugServices = (debug_services*)malloc(sizeof(debug_services));
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InitDebugServices(GlobalDebugServices, (u8*)malloc(Megabytes(8)), Megabytes(8), 1000, PerformanceCountFrequency);
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GlobalDebugServices->GetWallClock = GetWallClock;
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input Input;
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InitializeInput(&Input);
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//
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// Set up worker threads
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//
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const s32 WorkerThreadCount = 2;
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worker_thread_info* WorkerThreads = 0;
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if (WorkerThreadCount > 0)
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{
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WorkerThreads = (worker_thread_info*)malloc(sizeof(worker_thread_info) * WorkerThreadCount);
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}
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work_queue WorkQueue = {};
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WorkQueue.SemaphoreHandle = CreateSemaphoreEx(0, 0, WorkerThreadCount, 0, 0, SEMAPHORE_ALL_ACCESS);
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WorkQueue.JobsMax = 256;
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WorkQueue.NextJobIndex = 0;
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WorkQueue.PushWorkOnQueue = Win32PushWorkOnQueue;
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WorkQueue.DoQueueWorkUntilDone = Win32DoQueueWorkUntilDone;
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WorkQueue.ResetWorkQueue = ResetWorkQueue;
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for (s32 i = 0; i < WorkerThreadCount; i++)
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{
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// ID = 0 is reserved for this thread
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WorkerThreads[i].ID = i + 1;
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WorkerThreads[i].Queue = &WorkQueue;
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WorkerThreads[i].Handle = CreateThread(0, 0, &WorkerThreadProc, (void*)&WorkerThreads[i], 0, 0);
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}
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platform_memory_result InitialMemory = Win32Alloc(Megabytes(64));
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context Context = {};
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Context.MemorySize = InitialMemory.Size;
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Context.MemoryBase = InitialMemory.Base;
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Context.WindowWidth = MainWindow.Width;
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Context.WindowHeight = MainWindow.Height;
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// Platform functions
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Context.GeneralWorkQueue = &WorkQueue;
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Context.PlatformAlloc = Win32Alloc;
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Context.PlatformFree = Win32Free;
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Context.PlatformReadEntireFile = Win32ReadEntireFile;
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Context.PlatformWriteEntireFile = Win32WriteEntireFile;
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Context.PlatformGetFilePath = Win32SystemDialogueOpenFile;
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Context.PlatformGetGPUTextureHandle = Win32GetGPUTextureHandle;
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Context.PlatformGetSocketHandle = Win32GetSocketHandle;
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Context.PlatformGetSendAddress = Win32GetSendAddress;
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Context.PlatformSetSocketOption = Win32SetSocketOption;
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Context.PlatformCloseSocket = Win32CloseSocket;
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Context.PlatformGetFontInfo = Win32GetFontInfo;
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Context.PlatformDrawFontCodepoint = Win32DrawFontCodepoint;
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win32_dll_refresh DLLRefresh = InitializeDLLHotReloading(DLLName, WorkingDLLName, DLLLockFileName);
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if (HotLoadDLL(&DLLRefresh))
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{
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SetApplicationLinks(&Context, DLLRefresh, &WorkQueue);
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Context.ReloadStaticData(Context, GlobalDebugServices);
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}
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else
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{
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InvalidCodePath;
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}
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WSADATA WSAData;
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WSAStartup(MAKEWORD(2, 2), &WSAData);
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platform_memory_result RenderMemory = Win32Alloc(Megabytes(32));
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render_command_buffer RenderBuffer = AllocateRenderCommandBuffer(RenderMemory.Base, RenderMemory.Size);
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Context.InitializeApplication(Context);
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Running = true;
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Context.WindowIsVisible = true;
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while (Running)
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{
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DEBUG_TRACK_SCOPE(MainLoop);
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SwapInputBuffers(&Input);
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if (HotLoadDLL(&DLLRefresh))
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{
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SetApplicationLinks(&Context, DLLRefresh, &WorkQueue);
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Context.ReloadStaticData(Context, GlobalDebugServices);
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}
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MSG Message;
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while (PeekMessageA(&Message, MainWindow.Handle, 0, 0, PM_REMOVE))
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{
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HandleWindowMessage(Message, &MainWindow, Input.New);
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}
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{ // Mouse Position
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POINT MousePos;
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GetCursorPos (&MousePos);
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ScreenToClient(MainWindow.Handle, &MousePos);
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Input.New->MouseX = MousePos.x;
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Input.New->MouseY = MainWindow.Height - MousePos.y;
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if (KeyTransitionedDown(Input, KeyCode_MouseLeftButton))
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{
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Input.MouseDownX = Input.New->MouseX;
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Input.MouseDownY = Input.New->MouseY;
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}
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}
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// TODO(Peter): We shouldn't need to do this translation. the platform layer knows about win32_windows. We should just make that the interface
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// to all windows.
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Context.WindowWidth = MainWindow.Width;
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Context.WindowHeight = MainWindow.Height;
|
|
Context.DeltaTime = LastFrameSecondsElapsed;
|
|
|
|
Context.UpdateAndRender(Context, Input, &RenderBuffer);
|
|
|
|
RenderCommandBuffer(RenderBuffer);
|
|
ClearRenderBuffer(&RenderBuffer);
|
|
|
|
///////////////////////////////////
|
|
// Finish Up
|
|
//////////////////////////////////
|
|
|
|
HDC DeviceContext = GetDC(MainWindow.Handle);
|
|
SwapBuffers(DeviceContext);
|
|
ReleaseDC(MainWindow.Handle, DeviceContext);
|
|
|
|
s64 FinishedWorkTime = GetWallClock();
|
|
r32 SecondsElapsed = GetSecondsElapsed(LastFrameEnd, FinishedWorkTime, PerformanceCountFrequency);
|
|
|
|
while (SecondsElapsed < TargetSecondsPerFrame)
|
|
{
|
|
u32 SleepTime = 1000.0f * (TargetSecondsPerFrame - SecondsElapsed);
|
|
Sleep(SleepTime);
|
|
SecondsElapsed = GetSecondsElapsed(LastFrameEnd, GetWallClock(), PerformanceCountFrequency);
|
|
}
|
|
|
|
LastFrameSecondsElapsed = SecondsElapsed;
|
|
LastFrameEnd = GetWallClock();
|
|
}
|
|
|
|
Context.CleanupApplication(Context);
|
|
|
|
s32 CleanupResult = 0;
|
|
do {
|
|
CleanupResult = WSACleanup();
|
|
}while(CleanupResult == SOCKET_ERROR);
|
|
|
|
for (s32 Thread = 0; Thread < WorkerThreadCount; Thread++)
|
|
{
|
|
TerminateThread(WorkerThreads[Thread].Handle, 0);
|
|
}
|
|
|
|
return 0;
|
|
} |