diff options
Diffstat (limited to 'platform_win32.c')
| -rw-r--r-- | platform_win32.c | 219 |
1 files changed, 0 insertions, 219 deletions
diff --git a/platform_win32.c b/platform_win32.c deleted file mode 100644 index b8bb4b3..0000000 --- a/platform_win32.c +++ /dev/null @@ -1,219 +0,0 @@ -#define UNICODE -#include <windows.h> -#include <windowsx.h> -#include <assert.h> -#include <stdio.h> -#include <io.h> - -#include <fcntl.h> - -#define SPONGE_IMPLEMENTATION -#include "sponge.h" - -#define STB_IMAGE_IMPLEMENTATION -#include "stb_image.h" - -#include "example.h" - -#define DEFAULT_WIDTH 1280 -#define DEFAULT_HEIGHT 720 - -#define TARGET_FRAME_TIME_US 16666 - -static size_t pixels_buffer_count; -static sponge_Texture canvas; -static float *depths; -static BITMAPINFO bmi; - -int update_canvas(sponge_Texture *canvas, float **depths, uint32_t new_width, uint32_t new_height) { - size_t new_count = new_width * new_height; - if (new_count > pixels_buffer_count) { - sponge_Color32 *new_pixels_buffer = malloc(new_count * sizeof(uint32_t)); - float *new_depths = malloc(new_count * sizeof(float)); - if (!new_pixels_buffer || !new_depths) { - free(new_pixels_buffer); - free(new_pixels_buffer); - return 0; - } - free(canvas->pixels); - free(*depths); - canvas->pixels = new_pixels_buffer; - *depths = new_depths; - pixels_buffer_count = new_count; - } - canvas->width = new_width; - canvas->height = new_height; - canvas->stride_pixels = new_width; // TODO(kard): think about this if we want image to stay the same without redraw - - ZeroMemory(&bmi, sizeof(bmi)); - bmi.bmiHeader.biSize = sizeof(BITMAPINFOHEADER); - bmi.bmiHeader.biWidth = new_width; - bmi.bmiHeader.biHeight = -(int32_t)new_height; // negative = top-down - bmi.bmiHeader.biPlanes = 1; - bmi.bmiHeader.biBitCount = 32; - bmi.bmiHeader.biCompression = BI_RGB; - return 1; -} - -// TODO(kard): MSVC complains about freopen (should be freopen_s apparently) -void redirect_io_to_console() { - AllocConsole(); - FILE *fp; - - assert(!freopen_s(&fp, "CONOUT$", "w", stdout)); - setvbuf(stdout, NULL, _IONBF, 0); - - assert(!freopen_s(&fp, "CONOUT$", "w", stderr)); - setvbuf(stderr, NULL, _IONBF, 0); - - assert(!freopen_s(&fp, "CONIN$", "r", stdin)); - setvbuf(stdin, NULL, _IONBF, 0); -} - -LRESULT __stdcall WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam) { - switch (uMsg) { - case WM_DESTROY: { - PostQuitMessage(0); - return 0; - } - case WM_SIZE: { - uint32_t width = LOWORD(lParam); - uint32_t height = HIWORD(lParam); - // TODO(kard): handle properly? (what does that even mean) - assert(update_canvas(&canvas, &depths, width, height)); - } - case WM_MOUSEMOVE: { - int32_t x = GET_X_LPARAM(lParam); - int32_t y = GET_Y_LPARAM(lParam); - mouse_move(x, y); - } - default: - return DefWindowProc(hwnd, uMsg, wParam, lParam); - } -} - -int __stdcall WinMain( - HINSTANCE hInstance, - HINSTANCE hPrevInstance, - LPSTR lpCmdLine, - int nShowCmd -) { - redirect_io_to_console(); - - const wchar_t CLASS_NAME[] = L"sponge"; - - WNDCLASS wc = { 0 }; - - wc.lpfnWndProc = WindowProc; - wc.hInstance = hInstance; - wc.lpszClassName = CLASS_NAME; - - RegisterClass(&wc); - - HWND hwnd = CreateWindowEx( - 0, - CLASS_NAME, - L"sponge", - WS_OVERLAPPEDWINDOW, - CW_USEDEFAULT, CW_USEDEFAULT, DEFAULT_WIDTH, DEFAULT_HEIGHT, - NULL, - NULL, - hInstance, - NULL - ); - - if (hwnd == NULL) - return 1; - - update_canvas(&canvas, &depths, DEFAULT_WIDTH, DEFAULT_HEIGHT); - - ShowWindow(hwnd, nShowCmd); - - MSG msg = {0}; - BOOL running = TRUE; - - init(); - - LARGE_INTEGER qpc_freq; - LARGE_INTEGER qpc_start; - LARGE_INTEGER qpc_end; - LARGE_INTEGER qpc_draw; - LARGE_INTEGER qpc_frame; - - LARGE_INTEGER qpc_running_draw = { 0 }; - size_t qpc_running_draw_count = 0; - - QueryPerformanceFrequency(&qpc_freq); - QueryPerformanceCounter(&qpc_start); - - while (running) { - QueryPerformanceCounter(&qpc_start); - while (PeekMessage(&msg, NULL, 0, 0, PM_REMOVE)) { - if (msg.message == WM_QUIT) { - running = FALSE; - break; - } - - TranslateMessage(&msg); - DispatchMessage(&msg); - } - - if (!running) break; - - if (sponge_texture_valid(canvas)) - draw_frame_3d(canvas, depths); - - QueryPerformanceCounter(&qpc_end); - qpc_draw.QuadPart = qpc_end.QuadPart - qpc_start.QuadPart; - qpc_draw.QuadPart *= 1000000; // microseconds - qpc_draw.QuadPart /= qpc_freq.QuadPart; - qpc_running_draw.QuadPart += qpc_draw.QuadPart; - qpc_running_draw_count++; - - HDC hdc = GetDC(hwnd); - StretchDIBits( - hdc, - // TODO(kard): check what happens if canvas is bigger than window (it shouldn't differ currently) - 0, 0, canvas.width, canvas.height, // dest rectangle - 0, 0, canvas.width, canvas.height, // src rectangle - canvas.pixels, - &bmi, - DIB_RGB_COLORS, - SRCCOPY - ); - - InvalidateRect(hwnd, NULL, FALSE); - UpdateWindow(hwnd); - - QueryPerformanceCounter(&qpc_end); - qpc_frame.QuadPart = qpc_end.QuadPart - qpc_start.QuadPart; - qpc_frame.QuadPart *= 1000000; // microseconds - qpc_frame.QuadPart /= qpc_freq.QuadPart; - - fprintf(stderr, "draw time: %3lld.%03lldms (avg: %3lld.%03lldms), frame time: %3lld.%03lldms\n", - qpc_draw.QuadPart / 1000, qpc_draw.QuadPart % 1000, - qpc_running_draw.QuadPart / qpc_running_draw_count / 1000, qpc_running_draw.QuadPart / qpc_running_draw_count % 1000, - qpc_frame.QuadPart / 1000, qpc_frame.QuadPart % 1000); - - // TODO(kard): - // 1. this can probably be done cleaner - // 2. resetting after every frame is wrong, it should be a value across frames (see 1.) - if (qpc_frame.QuadPart < TARGET_FRAME_TIME_US) { - LARGE_INTEGER remaining; - LARGE_INTEGER actual_end; - actual_end.QuadPart = qpc_start.QuadPart + (TARGET_FRAME_TIME_US * qpc_freq.QuadPart / 1000000); - remaining.QuadPart = (actual_end.QuadPart - qpc_end.QuadPart) * 1000000 / qpc_freq.QuadPart; - if (remaining.QuadPart > 2000) { - Sleep((DWORD)((remaining.QuadPart - 1000) / 1000)); - } - - while (qpc_end.QuadPart < actual_end.QuadPart) { - QueryPerformanceCounter(&qpc_end); - } - } - - Sleep(16); - } - - return (int) msg.wParam; -} |