Delete platform
This commit is contained in:
Krzosa Karol
212
platform.cpp
212
platform.cpp
@@ -1,212 +0,0 @@
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/*
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* The OS layer should expect ABGR writes to the screen, the bitmap is bottom up(origin 0,0 is in left bottom corner)
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*/
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#if 0
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#define _CRT_SECURE_NO_WARNINGS
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#include "platform.h"
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#include <windows.h>
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#include <shellscalingapi.h>
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struct OSWin32 {
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HBITMAP screen_dib;
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HDC screen_dc;
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HDC window_dc;
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HWND hwnd;
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HINSTANCE hinstance;
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};
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typedef HRESULT tSetProcessDpiAwareness(PROCESS_DPI_AWARENESS);
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GLOBAL OS *wnd_proc_os = 0;
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LRESULT CALLBACK WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) {
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LRESULT result = 0;
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switch (uMsg) {
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case WM_CLOSE: DestroyWindow(hwnd); wnd_proc_os->app_is_running = false; break;
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case WM_DESTROY: PostQuitMessage(0); wnd_proc_os->app_is_running = false; break;
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case WM_SYSKEYDOWN:
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case WM_KEYDOWN: {
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switch (wParam) {
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case VK_ESCAPE: wnd_proc_os->app_is_running = false; break;
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case 0x4F: wnd_proc_os->keydown_a = true; break;
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case 0x50: wnd_proc_os->keydown_b = true; break;
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case VK_F1: wnd_proc_os->keydown_f1 = true; break;
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case VK_F2: wnd_proc_os->keydown_f2 = true; break;
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case VK_F3: wnd_proc_os->keydown_f3 = true; break;
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}
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} break;
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case WM_SYSKEYUP:
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case WM_KEYUP: {
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switch (wParam) {
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case 0x4F: wnd_proc_os->keydown_a = false; break;
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case 0x50: wnd_proc_os->keydown_b = false; break;
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case VK_F1: wnd_proc_os->keydown_f1 = false; break;
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case VK_F2: wnd_proc_os->keydown_f2 = false; break;
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case VK_F3: wnd_proc_os->keydown_f3 = false; break;
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}
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} break;
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default: result = DefWindowProc(hwnd, uMsg, wParam, lParam);
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}
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return result;
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}
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FUNCTION
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void win32_screen_init(OS *os, int window_x, int window_y) {
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OSWin32 *w32 = (OSWin32 *)os->os_internal_data;
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BITMAPINFO bminfo = {};
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bminfo.bmiHeader.biSize = sizeof(bminfo.bmiHeader);
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bminfo.bmiHeader.biWidth = window_x;
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bminfo.bmiHeader.biHeight = window_y;
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bminfo.bmiHeader.biPlanes = 1;
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bminfo.bmiHeader.biBitCount = 32;
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bminfo.bmiHeader.biCompression = BI_RGB; // AA RR GG BB
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bminfo.bmiHeader.biXPelsPerMeter = 1;
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bminfo.bmiHeader.biYPelsPerMeter = 1;
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void* mem = 0;
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w32->screen_dib = CreateDIBSection(w32->window_dc, &bminfo, DIB_RGB_COLORS, (void**)&mem, 0, 0);
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w32->screen_dc = CreateCompatibleDC(w32->window_dc);
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os->screen.pixels = (U32*)mem;
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os->screen.x = window_x;
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os->screen.y = window_y;
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}
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void OS::init(OSInitArgs i) {
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OSWin32 *w32 = (OSWin32 *)os_internal_data;
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w32->hinstance = (HINSTANCE)GetModuleHandle(NULL);
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HMODULE shcore = LoadLibraryA("Shcore.dll");
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if (shcore) {
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tSetProcessDpiAwareness* set_dpi_awr = (tSetProcessDpiAwareness*)GetProcAddress(shcore, "SetProcessDpiAwareness");
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if (set_dpi_awr) {
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HRESULT hr = set_dpi_awr(PROCESS_PER_MONITOR_DPI_AWARE);
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ASSERT(SUCCEEDED(hr));
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}
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}
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const wchar_t CLASS_NAME[] = L"Hello!";
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WNDCLASS wc = { };
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wc.lpfnWndProc = WindowProc;
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wc.hInstance = w32->hinstance;
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wc.lpszClassName = CLASS_NAME;
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ASSERT(RegisterClass(&wc));
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w32->hwnd = CreateWindowEx(
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0, // Optional window styles.
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CLASS_NAME, // Window class
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L"Have a wonderful day!", // Window text
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WS_OVERLAPPEDWINDOW, // Window style
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CW_USEDEFAULT, CW_USEDEFAULT, i.window_x, i.window_y, // Size and position
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NULL, // Parent window
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NULL, // Menu
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w32->hinstance, // Instance handle
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NULL // Additional application data
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);
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if (w32->hwnd == 0) {
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ASSERT(!"Failed to create window");
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return;
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}
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ShowWindow(w32->hwnd, SW_SHOW);
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RECT rect;
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GetWindowRect(w32->hwnd, &rect);
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w32->window_dc = GetWindowDC(w32->hwnd);
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win32_screen_init(this, rect.right - rect.left, rect.bottom - rect.top);
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app_is_running = true;
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}
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bool OS::game_loop() {
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OSWin32 *w32 = (OSWin32 *)os_internal_data;
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MSG msg = { };
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wnd_proc_os = this;
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while (PeekMessage(&msg, 0, 0, 0, PM_REMOVE) > 0) {
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TranslateMessage(&msg);
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DispatchMessage(&msg);
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}
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// @Note: Free the screen on window resize
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RECT rect;
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GetWindowRect(w32->hwnd, &rect);
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int new_width = rect.right - rect.left;
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int new_height = rect.bottom - rect.top;
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if (new_width != screen.x || new_height != screen.y) {
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screen.x = new_width;
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screen.y = new_height;
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if (screen.pixels) {
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screen.pixels = 0;
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DeleteDC(w32->screen_dc);
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DeleteObject(w32->screen_dib);
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}
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}
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// @Note: Create drawable screen
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if (!screen.pixels) {
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win32_screen_init(this, (LONG)screen.x, (LONG)screen.y);
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}
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// @Note: Draw screen to window
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U32* p = screen.pixels;
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if (p != 0) {
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// @Note: Convert 0xABGR to 0xARGB
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for (int y = 0; y < screen.y; y++) {
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for (int x = 0; x < screen.x; x++) {
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*p = ((*p & 0xff000000)) | ((*p & 0x00ff0000) >> 16) | ((*p & 0x0000ff00)) | ((*p & 0x000000ff) << 16);
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p += 1;
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}
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}
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SelectObject(w32->screen_dc, w32->screen_dib);
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BitBlt(w32->window_dc, 0, 0, (int)screen.x, (int)screen.y, w32->screen_dc, 0, 0, SRCCOPY);
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}
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Sleep(16);
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return app_is_running;
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}
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int main();
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int WINAPI wWinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PWSTR pCmdLine, int nCmdShow) {
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return main();
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}
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#include <stdio.h>
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void OS::message(int debug, const char* format, ...) {
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char buffer[1024];
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va_list args;
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va_start(args, format);
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vsnprintf(buffer, 1024, format, args);
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va_end(args);
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if (debug) {
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OutputDebugStringA(buffer);
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}
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else {
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MessageBoxA(0, buffer, "Error!", 0);
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}
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}
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char* OS::read_file(const char* path) {
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char* result = 0;
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FILE* f = fopen(path, "rb");
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if (f) {
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fseek(f, 0, SEEK_END);
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U64 fsize = ftell(f);
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fseek(f, 0, SEEK_SET);
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result = (char*)malloc(fsize + 1ll);
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if (result) {
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fread(result, fsize, 1, f);
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result[fsize] = 0;
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}
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else {
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ASSERT(!"Malloc failed!")
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}
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fclose(f);
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}
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else {
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ASSERT(!"Failed to read file");
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}
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return result;
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}
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#endif
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33
platform.h
33
platform.h
@@ -1,33 +0,0 @@
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// #include "main.h"
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struct Image {
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U32* pixels;
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I64 x;
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I64 y;
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};
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#if 0
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struct OSInitArgs {
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int window_x;
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int window_y;
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};
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struct OS {
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Image screen;
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bool keydown_a;
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bool keydown_b;
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bool keydown_f1;
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bool keydown_f2;
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bool keydown_f3;
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bool app_is_running;
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void init(OSInitArgs args);
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bool game_loop();
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void message(int debug, const char *msg, ...);
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char *read_file(const char *path);
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OS() = default;
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OS(OSInitArgs args) { init(args); }
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char os_internal_data[1024];
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};
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#endif
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