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Window.c
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Window.c
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#include "Window.h"
#include "Platform.h"
#include "Input.h"
#include "Event.h"
#include "Logger.h"
#include "Funcs.h"
#include "ExtMath.h"
int Display_BitsPerPixel;
int Display_DpiX = DISPLAY_DEFAULT_DPI;
int Display_DpiY = DISPLAY_DEFAULT_DPI;
Rect2D Display_Bounds;
int Display_ScaleX(int x) { return x * Display_DpiX / DISPLAY_DEFAULT_DPI; }
int Display_ScaleY(int y) { return y * Display_DpiY / DISPLAY_DEFAULT_DPI; }
#define Display_CentreX(width) (Display_Bounds.X + (Display_Bounds.Width - width) / 2)
#define Display_CentreY(height) (Display_Bounds.Y + (Display_Bounds.Height - height) / 2)
int Window_Width, Window_Height;
bool Window_Exists, Window_Focused;
const void* Window_Handle;
bool Window_SoftKeyboard;
#ifndef CC_BUILD_WEBCANVAS
void Clipboard_RequestText(RequestClipboardCallback callback, void* obj) {
String text; char textBuffer[512];
String_InitArray(text, textBuffer);
Clipboard_GetText(&text);
callback(&text, obj);
}
#endif
static int cursorPrevX, cursorPrevY;
/* Gets the position of the cursor in screen or window coordinates. */
static void Cursor_GetRawPos(int* x, int* y);
static void Window_CentreMousePosition(void) {
Cursor_SetPosition(Window_Width / 2, Window_Height / 2);
/* Fixes issues with large DPI displays on Windows >= 8.0. */
Cursor_GetRawPos(&cursorPrevX, &cursorPrevY);
}
static void Window_RegrabMouse(void) {
if (!Window_Focused || !Window_Exists) return;
Window_CentreMousePosition();
}
static void Window_DefaultEnableRawMouse(void) {
Input_RawMode = true;
Window_RegrabMouse();
Cursor_SetVisible(false);
}
static void Window_DefaultUpdateRawMouse(void) {
int x, y;
Cursor_GetRawPos(&x, &y);
Event_RaiseMove(&PointerEvents.RawMoved, 0, x - cursorPrevX, y - cursorPrevY);
Window_CentreMousePosition();
}
static void Window_DefaultDisableRawMouse(void) {
Input_RawMode = false;
Window_RegrabMouse();
Cursor_SetVisible(true);
}
void GraphicsMode_MakeDefault(struct GraphicsMode* m) {
int bpp = Display_BitsPerPixel;
m->IsIndexed = bpp < 15;
m->A = 0;
switch (bpp) {
case 32:
m->R = 8; m->G = 8; m->B = 8; m->A = 8; break;
case 24:
m->R = 8; m->G = 8; m->B = 8; break;
case 16:
m->R = 5; m->G = 6; m->B = 5; break;
case 15:
m->R = 5; m->G = 5; m->B = 5; break;
case 8:
m->R = 3; m->G = 3; m->B = 2; break;
case 4:
m->R = 2; m->G = 2; m->B = 1; break;
default:
/* mode->R = 0; mode->G = 0; mode->B = 0; */
Logger_Abort2(bpp, "Unsupported bits per pixel"); break;
}
}
/*########################################################################################################################*
*------------------------------------------------------Win32 window-------------------------------------------------------*
*#########################################################################################################################*/
#ifdef CC_BUILD_WINGUI
#define WIN32_LEAN_AND_MEAN
#define NOSERVICE
#define NOMCX
#define NOIME
#ifndef UNICODE
#define UNICODE
#define _UNICODE
#endif
#ifndef _WIN32_WINNT
#define _WIN32_WINNT 0x0501 /* Windows XP */
/* NOTE: Functions that are not present on Windows 2000 are dynamically loaded. */
/* Hence the actual minimum supported OS is Windows 2000. This just avoids redeclaring structs. */
#endif
#include <windows.h>
#define CC_WIN_STYLE WS_OVERLAPPEDWINDOW | WS_CLIPCHILDREN
#define CC_WIN_CLASSNAME TEXT("ClassiCube_Window")
#define Rect_Width(rect) (rect.right - rect.left)
#define Rect_Height(rect) (rect.bottom - rect.top)
#ifndef WM_XBUTTONDOWN
/* Missing if _WIN32_WINNT isn't defined */
#define WM_XBUTTONDOWN 0x020B
#define WM_XBUTTONUP 0x020C
#endif
static bool rawMouseInited, rawMouseSupported;
typedef BOOL (WINAPI *FUNC_RegisterRawInput)(PCRAWINPUTDEVICE devices, UINT numDevices, UINT size);
static FUNC_RegisterRawInput _registerRawInput;
typedef UINT (WINAPI *FUNC_GetRawInputData)(HRAWINPUT hRawInput, UINT cmd, void* data, UINT* size, UINT headerSize);
static FUNC_GetRawInputData _getRawInputData;
static HINSTANCE win_instance;
static HWND win_handle;
static HDC win_DC;
static bool suppress_resize;
static int win_totalWidth, win_totalHeight; /* Size of window including titlebar and borders */
static int windowX, windowY;
/*########################################################################################################################*
*-----------------------------------------------------Private details-----------------------------------------------------*
*#########################################################################################################################*/
static const cc_uint8 key_map[14 * 16] = {
0, 0, 0, 0, 0, 0, 0, 0, KEY_BACKSPACE, KEY_TAB, 0, 0, 0, KEY_ENTER, 0, 0,
0, 0, 0, KEY_PAUSE, KEY_CAPSLOCK, 0, 0, 0, 0, 0, 0, KEY_ESCAPE, 0, 0, 0, 0,
KEY_SPACE, KEY_PAGEUP, KEY_PAGEDOWN, KEY_END, KEY_HOME, KEY_LEFT, KEY_UP, KEY_RIGHT, KEY_DOWN, 0, KEY_PRINTSCREEN, 0, KEY_PRINTSCREEN, KEY_INSERT, KEY_DELETE, 0,
'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 0, 0, 0, 0, 0, 0,
0, 'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z', KEY_LWIN, KEY_RWIN, KEY_MENU, 0, 0,
KEY_KP0, KEY_KP1, KEY_KP2, KEY_KP3, KEY_KP4, KEY_KP5, KEY_KP6, KEY_KP7, KEY_KP8, KEY_KP9, KEY_KP_MULTIPLY, KEY_KP_PLUS, 0, KEY_KP_MINUS, KEY_KP_DECIMAL, KEY_KP_DIVIDE,
KEY_F1, KEY_F2, KEY_F3, KEY_F4, KEY_F5, KEY_F6, KEY_F7, KEY_F8, KEY_F9, KEY_F10, KEY_F11, KEY_F12, KEY_F13, KEY_F14, KEY_F15, KEY_F16,
KEY_F17, KEY_F18, KEY_F19, KEY_F20, KEY_F21, KEY_F22, KEY_F23, KEY_F24, 0, 0, 0, 0, 0, 0, 0, 0,
KEY_NUMLOCK, KEY_SCROLLLOCK, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
KEY_LSHIFT, KEY_RSHIFT, KEY_LCTRL, KEY_RCTRL, KEY_LALT, KEY_RALT, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, KEY_SEMICOLON, KEY_EQUALS, KEY_COMMA, KEY_MINUS, KEY_PERIOD, KEY_SLASH,
KEY_TILDE, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, KEY_LBRACKET, KEY_BACKSLASH, KEY_RBRACKET, KEY_QUOTE, 0,
};
static Key Window_MapKey(WPARAM key) { return key < Array_Elems(key_map) ? key_map[key] : 0; }
static void Window_RefreshBounds(void) {
RECT rect;
POINT topLeft = { 0, 0 };
GetWindowRect(win_handle, &rect);
win_totalWidth = Rect_Width(rect);
win_totalHeight = Rect_Height(rect);
GetClientRect(win_handle, &rect);
Window_Width = Rect_Width(rect);
Window_Height = Rect_Height(rect);
/* GetClientRect always returns 0,0 for left,top (see MSDN) */
ClientToScreen(win_handle, &topLeft);
windowX = topLeft.x; windowY = topLeft.y;
}
static LRESULT CALLBACK Window_Procedure(HWND handle, UINT message, WPARAM wParam, LPARAM lParam) {
char keyChar;
float wheelDelta;
switch (message) {
case WM_ACTIVATE:
Window_Focused = LOWORD(wParam) != 0;
Event_RaiseVoid(&WindowEvents.FocusChanged);
break;
case WM_ERASEBKGND:
return 1; /* Avoid flickering */
case WM_PAINT:
ValidateRect(win_handle, NULL);
Event_RaiseVoid(&WindowEvents.Redraw);
return 0;
case WM_WINDOWPOSCHANGED:
{
WINDOWPOS* pos = (WINDOWPOS*)lParam;
if (pos->hwnd != win_handle) break;
bool sized = pos->cx != win_totalWidth || pos->cy != win_totalHeight;
Window_RefreshBounds();
if (sized && !suppress_resize) Event_RaiseVoid(&WindowEvents.Resized);
} break;
case WM_SIZE:
Event_RaiseVoid(&WindowEvents.StateChanged);
break;
case WM_CHAR:
if (Convert_TryUnicodeToCP437((Codepoint)wParam, &keyChar)) {
Event_RaiseInt(&InputEvents.Press, keyChar);
}
break;
case WM_MOUSEMOVE:
/* Set before position change, in case mouse buttons changed when outside window */
Input_SetPressed(KEY_LMOUSE, (wParam & 0x01) != 0);
Input_SetPressed(KEY_RMOUSE, (wParam & 0x02) != 0);
Input_SetPressed(KEY_MMOUSE, (wParam & 0x10) != 0);
/* TODO: do we need to set XBUTTON1/XBUTTON2 here */
Pointer_SetPosition(0, LOWORD(lParam), HIWORD(lParam));
break;
case WM_MOUSEWHEEL:
wheelDelta = ((short)HIWORD(wParam)) / (float)WHEEL_DELTA;
Mouse_SetWheel(Mouse_Wheel + wheelDelta);
return 0;
case WM_LBUTTONDOWN:
Input_SetPressed(KEY_LMOUSE, true); break;
case WM_MBUTTONDOWN:
Input_SetPressed(KEY_MMOUSE, true); break;
case WM_RBUTTONDOWN:
Input_SetPressed(KEY_RMOUSE, true); break;
case WM_XBUTTONDOWN:
Input_SetPressed(HIWORD(wParam) == 1 ? KEY_XBUTTON1 : KEY_XBUTTON2, true);
break;
case WM_LBUTTONUP:
Input_SetPressed(KEY_LMOUSE, false); break;
case WM_MBUTTONUP:
Input_SetPressed(KEY_MMOUSE, false); break;
case WM_RBUTTONUP:
Input_SetPressed(KEY_RMOUSE, false); break;
case WM_XBUTTONUP:
Input_SetPressed(HIWORD(wParam) == 1 ? KEY_XBUTTON1 : KEY_XBUTTON2, false);
break;
case WM_INPUT:
{
RAWINPUT raw;
UINT ret, rawSize = sizeof(RAWINPUT);
int dx, dy;
ret = _getRawInputData((HRAWINPUT)lParam, RID_INPUT, &raw, &rawSize, sizeof(RAWINPUTHEADER));
if (ret == -1 || raw.header.dwType != RIM_TYPEMOUSE) break;
if (raw.data.mouse.usFlags == MOUSE_MOVE_RELATIVE) {
dx = raw.data.mouse.lLastX;
dy = raw.data.mouse.lLastY;
} else if (raw.data.mouse.usFlags == MOUSE_MOVE_ABSOLUTE) {
static int prevPosX, prevPosY;
dx = raw.data.mouse.lLastX - prevPosX;
dy = raw.data.mouse.lLastY - prevPosY;
prevPosX = raw.data.mouse.lLastX;
prevPosY = raw.data.mouse.lLastY;
} else { break; }
if (Input_RawMode) Event_RaiseMove(&PointerEvents.RawMoved, 0, dx, dy);
} break;
case WM_KEYDOWN:
case WM_KEYUP:
case WM_SYSKEYDOWN:
case WM_SYSKEYUP:
{
bool pressed = message == WM_KEYDOWN || message == WM_SYSKEYDOWN;
/* Shift/Control/Alt behave strangely when e.g. ShiftRight is held down and ShiftLeft is pressed
and released. It looks like neither key is released in this case, or that the wrong key is
released in the case of Control and Alt.
To combat this, we are going to release both keys when either is released. Hacky, but should work.
Win95 does not distinguish left/right key constants (GetAsyncKeyState returns 0).
In this case, both keys will be reported as pressed. */
bool ext = (lParam & (1UL << 24)) != 0;
bool lShiftDown, rShiftDown;
Key key;
switch (wParam)
{
case VK_SHIFT:
/* The behavior of this key is very strange. Unlike Control and Alt, there is no extended bit
to distinguish between left and right keys. Moreover, pressing both keys and releasing one
may result in both keys being held down (but not always).*/
lShiftDown = ((USHORT)GetKeyState(VK_LSHIFT)) >> 15;
rShiftDown = ((USHORT)GetKeyState(VK_RSHIFT)) >> 15;
if (!pressed || lShiftDown != rShiftDown) {
Input_SetPressed(KEY_LSHIFT, lShiftDown);
Input_SetPressed(KEY_RSHIFT, rShiftDown);
}
return 0;
case VK_CONTROL:
Input_SetPressed(ext ? KEY_RCTRL : KEY_LCTRL, pressed);
return 0;
case VK_MENU:
Input_SetPressed(ext ? KEY_RALT : KEY_LALT, pressed);
return 0;
case VK_RETURN:
Input_SetPressed(ext ? KEY_KP_ENTER : KEY_ENTER, pressed);
return 0;
default:
key = Window_MapKey(wParam);
if (key) Input_SetPressed(key, pressed);
return 0;
}
} break;
case WM_SYSCHAR:
return 0;
case WM_KILLFOCUS:
/* TODO: Keep track of keyboard when focus is lost */
Key_Clear();
break;
case WM_CLOSE:
Event_RaiseVoid(&WindowEvents.Closing);
if (Window_Exists) DestroyWindow(win_handle);
Window_Exists = false;
break;
case WM_DESTROY:
Window_Exists = false;
UnregisterClass(CC_WIN_CLASSNAME, win_instance);
if (win_DC) ReleaseDC(win_handle, win_DC);
Event_RaiseVoid(&WindowEvents.Destroyed);
break;
}
return DefWindowProc(handle, message, wParam, lParam);
}
/*########################################################################################################################*
*--------------------------------------------------Public implementation--------------------------------------------------*
*#########################################################################################################################*/
void Window_Init(void) {
HDC hdc = GetDC(NULL);
Display_Bounds.Width = GetSystemMetrics(SM_CXSCREEN);
Display_Bounds.Height = GetSystemMetrics(SM_CYSCREEN);
Display_BitsPerPixel = GetDeviceCaps(hdc, BITSPIXEL);
Display_DpiX = GetDeviceCaps(hdc, LOGPIXELSX);
Display_DpiY = GetDeviceCaps(hdc, LOGPIXELSY);
Platform_Log2("DPI: %i, %i", &Display_DpiX, &Display_DpiY);
ReleaseDC(NULL, hdc);
}
void Window_Create(int width, int height) {
ATOM atom;
RECT r;
win_instance = GetModuleHandle(NULL);
/* TODO: UngroupFromTaskbar(); */
width = Display_ScaleX(width);
height = Display_ScaleY(height);
/* Find out the final window rectangle, after the WM has added its chrome (titlebar, sidebars etc). */
r.left = Display_CentreX(width); r.right = r.left + width;
r.top = Display_CentreY(height); r.bottom = r.top + height;
AdjustWindowRect(&r, CC_WIN_STYLE, false);
WNDCLASSEX wc = { 0 };
wc.cbSize = sizeof(WNDCLASSEX);
wc.style = CS_OWNDC;
wc.hInstance = win_instance;
wc.lpfnWndProc = Window_Procedure;
wc.lpszClassName = CC_WIN_CLASSNAME;
wc.hIcon = (HICON)LoadImage(win_instance, MAKEINTRESOURCE(1), IMAGE_ICON,
GetSystemMetrics(SM_CXICON), GetSystemMetrics(SM_CYICON), 0);
wc.hIconSm = (HICON)LoadImage(win_instance, MAKEINTRESOURCE(1), IMAGE_ICON,
GetSystemMetrics(SM_CXSMICON), GetSystemMetrics(SM_CYSMICON), 0);
wc.hCursor = LoadCursor(NULL, IDC_ARROW);
atom = RegisterClassEx(&wc);
if (!atom) Logger_Abort2(GetLastError(), "Failed to register window class");
win_handle = CreateWindowEx(0, MAKEINTATOM(atom), NULL, CC_WIN_STYLE,
r.left, r.top, Rect_Width(r), Rect_Height(r), NULL, NULL, win_instance, NULL);
if (!win_handle) Logger_Abort2(GetLastError(), "Failed to create window");
Window_RefreshBounds();
win_DC = GetDC(win_handle);
if (!win_DC) Logger_Abort2(GetLastError(), "Failed to get device context");
Window_Exists = true;
Window_Handle = win_handle;
}
void Window_SetTitle(const String* title) {
TCHAR str[300];
Platform_ConvertString(str, title);
SetWindowText(win_handle, str);
}
void Clipboard_GetText(String* value) {
/* retry up to 50 times */
int i;
for (i = 0; i < 50; i++) {
if (!OpenClipboard(win_handle)) {
Thread_Sleep(10);
continue;
}
bool isUnicode = true;
HANDLE hGlobal = GetClipboardData(CF_UNICODETEXT);
if (!hGlobal) {
hGlobal = GetClipboardData(CF_TEXT);
isUnicode = false;
}
if (!hGlobal) { CloseClipboard(); return; }
LPVOID src = GlobalLock(hGlobal);
SIZE_T size = GlobalSize(hGlobal);
/* ignore trailing NULL at end */
/* TODO: Verify it's always there */
if (isUnicode) {
String_AppendUtf16(value, (Codepoint*)src, size - 2);
} else {
String_DecodeCP1252(value, (cc_uint8*)src, size - 1);
}
GlobalUnlock(hGlobal);
CloseClipboard();
return;
}
}
void Clipboard_SetText(const String* value) {
Codepoint* text;
HANDLE hGlobal;
int i;
/* retry up to 10 times */
for (i = 0; i < 10; i++) {
if (!OpenClipboard(win_handle)) {
Thread_Sleep(100);
continue;
}
hGlobal = GlobalAlloc(GMEM_MOVEABLE, (value->length + 1) * 2);
if (!hGlobal) { CloseClipboard(); return; }
text = (Codepoint*)GlobalLock(hGlobal);
for (i = 0; i < value->length; i++, text++) {
*text = Convert_CP437ToUnicode(value->buffer[i]);
}
*text = '\0';
GlobalUnlock(hGlobal);
EmptyClipboard();
SetClipboardData(CF_UNICODETEXT, hGlobal);
CloseClipboard();
return;
}
}
void Window_Show(void) {
ShowWindow(win_handle, SW_SHOW);
BringWindowToTop(win_handle);
SetForegroundWindow(win_handle);
}
int Window_GetWindowState(void) {
DWORD style = GetWindowLong(win_handle, GWL_STYLE);
if (style & WS_MINIMIZE) return WINDOW_STATE_MINIMISED;
if (style & WS_MAXIMIZE) {
return (style & WS_POPUP) ? WINDOW_STATE_FULLSCREEN : WINDOW_STATE_MAXIMISED;
}
return WINDOW_STATE_NORMAL;
}
static void Window_ToggleFullscreen(bool fullscreen, UINT finalShow) {
DWORD style = WS_CLIPCHILDREN | WS_CLIPSIBLINGS;
style |= (fullscreen ? WS_POPUP : WS_OVERLAPPEDWINDOW);
suppress_resize = true;
{
ShowWindow(win_handle, SW_RESTORE); /* reset maximised state */
SetWindowLong(win_handle, GWL_STYLE, style);
SetWindowPos(win_handle, NULL, 0, 0, 0, 0, SWP_NOMOVE | SWP_NOSIZE | SWP_NOZORDER | SWP_FRAMECHANGED);
ShowWindow(win_handle, finalShow);
Window_ProcessEvents();
}
suppress_resize = false;
/* call Resized event only once */
Window_RefreshBounds();
Event_RaiseVoid(&WindowEvents.Resized);
}
static UINT win_show;
void Window_EnterFullscreen(void) {
WINDOWPLACEMENT w = { 0 };
w.length = sizeof(WINDOWPLACEMENT);
GetWindowPlacement(win_handle, &w);
win_show = w.showCmd;
Window_ToggleFullscreen(true, SW_MAXIMIZE);
}
void Window_ExitFullscreen(void) {
Window_ToggleFullscreen(false, win_show);
}
void Window_SetSize(int width, int height) {
DWORD style = GetWindowLong(win_handle, GWL_STYLE);
RECT rect = { 0, 0, width, height };
AdjustWindowRect(&rect, style, false);
SetWindowPos(win_handle, NULL, 0, 0,
Rect_Width(rect), Rect_Height(rect), SWP_NOMOVE);
}
void Window_Close(void) {
PostMessage(win_handle, WM_CLOSE, 0, 0);
}
void Window_ProcessEvents(void) {
MSG msg;
while (PeekMessage(&msg, NULL, 0, 0, 1)) {
TranslateMessage(&msg);
DispatchMessage(&msg);
}
HWND foreground = GetForegroundWindow();
if (foreground) {
Window_Focused = foreground == win_handle;
}
}
static void Cursor_GetRawPos(int* x, int* y) {
POINT point;
GetCursorPos(&point);
*x = point.x; *y = point.y;
}
void Cursor_SetPosition(int x, int y) {
SetCursorPos(x + windowX, y + windowY);
}
void Cursor_SetVisible(bool visible) { ShowCursor(visible); }
void Window_ShowDialog(const char* title, const char* msg) {
MessageBoxA(win_handle, msg, title, 0);
}
static HDC draw_DC;
static HBITMAP draw_DIB;
void Window_AllocFramebuffer(Bitmap* bmp) {
BITMAPINFO hdr = { 0 };
if (!draw_DC) draw_DC = CreateCompatibleDC(win_DC);
hdr.bmiHeader.biSize = sizeof(BITMAPINFO);
hdr.bmiHeader.biWidth = bmp->Width;
hdr.bmiHeader.biHeight = -bmp->Height;
hdr.bmiHeader.biBitCount = 32;
hdr.bmiHeader.biPlanes = 1;
draw_DIB = CreateDIBSection(draw_DC, &hdr, DIB_RGB_COLORS, (void**)&bmp->Scan0, NULL, 0);
}
void Window_DrawFramebuffer(Rect2D r) {
HGDIOBJ oldSrc = SelectObject(draw_DC, draw_DIB);
BitBlt(win_DC, r.X, r.Y, r.Width, r.Height, draw_DC, r.X, r.Y, SRCCOPY);
SelectObject(draw_DC, oldSrc);
}
void Window_FreeFramebuffer(Bitmap* bmp) {
DeleteObject(draw_DIB);
}
static void Window_InitRawMouse(void) {
RAWINPUTDEVICE rid;
_registerRawInput = (FUNC_RegisterRawInput)DynamicLib_GetFrom("USER32.DLL", "RegisterRawInputDevices");
_getRawInputData = (FUNC_GetRawInputData) DynamicLib_GetFrom("USER32.DLL", "GetRawInputData");
rawMouseSupported = _registerRawInput && _getRawInputData;
if (!rawMouseSupported) { Platform_LogConst("Raw input unsupported!"); return; }
rid.usUsagePage = 1; /* HID_USAGE_PAGE_GENERIC; */
rid.usUsage = 2; /* HID_USAGE_GENERIC_MOUSE; */
rid.dwFlags = RIDEV_INPUTSINK;
rid.hwndTarget = win_handle;
if (_registerRawInput(&rid, 1, sizeof(rid))) return;
Logger_Warn(GetLastError(), "initing raw mouse");
rawMouseSupported = false;
}
void Window_OpenKeyboard(void) { }
void Window_CloseKeyboard(void) { }
void Window_EnableRawMouse(void) {
Window_DefaultEnableRawMouse();
if (!rawMouseInited) Window_InitRawMouse();
rawMouseInited = true;
}
void Window_UpdateRawMouse(void) {
if (rawMouseSupported) {
/* handled in WM_INPUT messages */
Window_CentreMousePosition();
} else {
Window_DefaultUpdateRawMouse();
}
}
void Window_DisableRawMouse(void) { Window_DefaultDisableRawMouse(); }
/*########################################################################################################################*
*-------------------------------------------------------WGL OpenGL--------------------------------------------------------*
*#########################################################################################################################*/
#ifdef CC_BUILD_GL
static HGLRC ctx_handle;
static HDC ctx_DC;
typedef BOOL (WINAPI *FN_WGLSWAPINTERVAL)(int interval);
static FN_WGLSWAPINTERVAL wglSwapIntervalEXT;
static bool ctx_supports_vSync;
static void GLContext_SelectGraphicsMode(struct GraphicsMode* mode) {
PIXELFORMATDESCRIPTOR pfd = { 0 };
pfd.nSize = sizeof(PIXELFORMATDESCRIPTOR);
pfd.nVersion = 1;
pfd.dwFlags = PFD_SUPPORT_OPENGL | PFD_DRAW_TO_WINDOW | PFD_DOUBLEBUFFER;
/* TODO: PFD_SUPPORT_COMPOSITION FLAG? CHECK IF IT WORKS ON XP */
pfd.cColorBits = mode->R + mode->G + mode->B;
pfd.cDepthBits = GLCONTEXT_DEFAULT_DEPTH;
pfd.iPixelType = mode->IsIndexed ? PFD_TYPE_COLORINDEX : PFD_TYPE_RGBA;
pfd.cRedBits = mode->R;
pfd.cGreenBits = mode->G;
pfd.cBlueBits = mode->B;
pfd.cAlphaBits = mode->A;
int modeIndex = ChoosePixelFormat(win_DC, &pfd);
if (modeIndex == 0) { Logger_Abort("Requested graphics mode not available"); }
Mem_Set(&pfd, 0, sizeof(PIXELFORMATDESCRIPTOR));
pfd.nSize = sizeof(PIXELFORMATDESCRIPTOR);
pfd.nVersion = 1;
DescribePixelFormat(win_DC, modeIndex, pfd.nSize, &pfd);
if (!SetPixelFormat(win_DC, modeIndex, &pfd)) {
Logger_Abort2(GetLastError(), "SetPixelFormat failed");
}
}
void GLContext_Init(struct GraphicsMode* mode) {
GLContext_SelectGraphicsMode(mode);
ctx_handle = wglCreateContext(win_DC);
if (!ctx_handle) {
ctx_handle = wglCreateContext(win_DC);
}
if (!ctx_handle) {
Logger_Abort2(GetLastError(), "Failed to create OpenGL context");
}
if (!wglMakeCurrent(win_DC, ctx_handle)) {
Logger_Abort2(GetLastError(), "Failed to make OpenGL context current");
}
ctx_DC = wglGetCurrentDC();
wglSwapIntervalEXT = (FN_WGLSWAPINTERVAL)GLContext_GetAddress("wglSwapIntervalEXT");
ctx_supports_vSync = wglSwapIntervalEXT != NULL;
}
void GLContext_Update(void) { }
bool GLContext_TryRestore(void) { return true; }
void GLContext_Free(void) {
if (!ctx_handle) return;
wglDeleteContext(ctx_handle);
ctx_handle = NULL;
}
void* GLContext_GetAddress(const char* function) {
void* address = wglGetProcAddress(function);
return GLContext_IsInvalidAddress(address) ? NULL : address;
}
bool GLContext_SwapBuffers(void) {
if (!SwapBuffers(ctx_DC)) Logger_Abort2(GetLastError(), "Failed to swap buffers");
return true;
}
void GLContext_SetFpsLimit(bool vsync, float minFrameMs) {
if (ctx_supports_vSync) wglSwapIntervalEXT(vsync);
}
#endif
#endif
/*########################################################################################################################*
*-------------------------------------------------------X11 window--------------------------------------------------------*
*#########################################################################################################################*/
#ifdef CC_BUILD_X11
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/XKBlib.h>
#define _NET_WM_STATE_REMOVE 0
#define _NET_WM_STATE_ADD 1
#define _NET_WM_STATE_TOGGLE 2
static Display* win_display;
static int win_screen;
static Window win_rootWin, win_handle;
static XVisualInfo win_visual;
static Atom wm_destroy, net_wm_state;
static Atom net_wm_state_minimized;
static Atom net_wm_state_fullscreen;
static Atom net_wm_state_maximized_horizontal;
static Atom net_wm_state_maximized_vertical;
static Atom xa_clipboard, xa_targets, xa_utf8_string, xa_data_sel;
static Atom xa_atom = 4;
static long win_eventMask;
/*########################################################################################################################*
*-----------------------------------------------------Private details-----------------------------------------------------*
*#########################################################################################################################*/
static Key Window_MapKey(KeySym key) {
if (key >= XK_0 && key <= XK_9) { return '0' + (key - XK_0); }
if (key >= XK_A && key <= XK_Z) { return 'A' + (key - XK_A); }
if (key >= XK_a && key <= XK_z) { return 'A' + (key - XK_a); }
if (key >= XK_F1 && key <= XK_F35) { return KEY_F1 + (key - XK_F1); }
if (key >= XK_KP_0 && key <= XK_KP_9) { return KEY_KP0 + (key - XK_KP_0); }
switch (key) {
case XK_Escape: return KEY_ESCAPE;
case XK_Return: return KEY_ENTER;
case XK_space: return KEY_SPACE;
case XK_BackSpace: return KEY_BACKSPACE;
case XK_Shift_L: return KEY_LSHIFT;
case XK_Shift_R: return KEY_RSHIFT;
case XK_Alt_L: return KEY_LALT;
case XK_Alt_R: return KEY_RALT;
case XK_Control_L: return KEY_LCTRL;
case XK_Control_R: return KEY_RCTRL;
case XK_Super_L: return KEY_LWIN;
case XK_Super_R: return KEY_RWIN;
case XK_Meta_L: return KEY_LWIN;
case XK_Meta_R: return KEY_RWIN;
case XK_Menu: return KEY_MENU;
case XK_Tab: return KEY_TAB;
case XK_minus: return KEY_MINUS;
case XK_plus: return KEY_EQUALS;
case XK_equal: return KEY_EQUALS;
case XK_Caps_Lock: return KEY_CAPSLOCK;
case XK_Num_Lock: return KEY_NUMLOCK;
case XK_Pause: return KEY_PAUSE;
case XK_Break: return KEY_PAUSE;
case XK_Scroll_Lock: return KEY_SCROLLLOCK;
case XK_Insert: return KEY_INSERT;
case XK_Print: return KEY_PRINTSCREEN;
case XK_Sys_Req: return KEY_PRINTSCREEN;
case XK_backslash: return KEY_BACKSLASH;
case XK_bar: return KEY_BACKSLASH;
case XK_braceleft: return KEY_LBRACKET;
case XK_bracketleft: return KEY_LBRACKET;
case XK_braceright: return KEY_RBRACKET;
case XK_bracketright: return KEY_RBRACKET;
case XK_colon: return KEY_SEMICOLON;
case XK_semicolon: return KEY_SEMICOLON;
case XK_quoteright: return KEY_QUOTE;
case XK_quotedbl: return KEY_QUOTE;
case XK_quoteleft: return KEY_TILDE;
case XK_asciitilde: return KEY_TILDE;
case XK_comma: return KEY_COMMA;
case XK_less: return KEY_COMMA;
case XK_period: return KEY_PERIOD;
case XK_greater: return KEY_PERIOD;
case XK_slash: return KEY_SLASH;
case XK_question: return KEY_SLASH;
case XK_Left: return KEY_LEFT;
case XK_Down: return KEY_DOWN;
case XK_Right: return KEY_RIGHT;
case XK_Up: return KEY_UP;
case XK_Delete: return KEY_DELETE;
case XK_Home: return KEY_HOME;
case XK_End: return KEY_END;
case XK_Page_Up: return KEY_PAGEUP;
case XK_Page_Down: return KEY_PAGEDOWN;
case XK_KP_Add: return KEY_KP_PLUS;
case XK_KP_Subtract: return KEY_KP_MINUS;
case XK_KP_Multiply: return KEY_KP_MULTIPLY;
case XK_KP_Divide: return KEY_KP_DIVIDE;
case XK_KP_Decimal: return KEY_KP_DECIMAL;
case XK_KP_Insert: return KEY_KP0;
case XK_KP_End: return KEY_KP1;
case XK_KP_Down: return KEY_KP2;
case XK_KP_Page_Down: return KEY_KP3;
case XK_KP_Left: return KEY_KP4;
case XK_KP_Begin: return KEY_KP5;
case XK_KP_Right: return KEY_KP6;
case XK_KP_Home: return KEY_KP7;
case XK_KP_Up: return KEY_KP8;
case XK_KP_Page_Up: return KEY_KP9;
case XK_KP_Delete: return KEY_KP_DECIMAL;
case XK_KP_Enter: return KEY_KP_ENTER;
}
return KEY_NONE;
}
static void Window_RegisterAtoms(void) {
Display* display = win_display;
wm_destroy = XInternAtom(display, "WM_DELETE_WINDOW", true);
net_wm_state = XInternAtom(display, "_NET_WM_STATE", false);
net_wm_state_minimized = XInternAtom(display, "_NET_WM_STATE_MINIMIZED", false);
net_wm_state_fullscreen = XInternAtom(display, "_NET_WM_STATE_FULLSCREEN", false);
net_wm_state_maximized_horizontal = XInternAtom(display, "_NET_WM_STATE_MAXIMIZED_HORZ", false);
net_wm_state_maximized_vertical = XInternAtom(display, "_NET_WM_STATE_MAXIMIZED_VERT", false);
xa_clipboard = XInternAtom(display, "CLIPBOARD", false);
xa_targets = XInternAtom(display, "TARGETS", false);
xa_utf8_string = XInternAtom(display, "UTF8_STRING", false);
xa_data_sel = XInternAtom(display, "CC_SEL_DATA", false);
}
static void Window_RefreshBounds(int width, int height) {
if (width != Window_Width || height != Window_Height) {
Window_Width = width;
Window_Height = height;
Event_RaiseVoid(&WindowEvents.Resized);
}
}
/*########################################################################################################################*
*--------------------------------------------------Public implementation--------------------------------------------------*
*#########################################################################################################################*/
static XVisualInfo GLContext_SelectVisual(struct GraphicsMode* mode);
void Window_Init(void) {
Display* display = XOpenDisplay(NULL);
int screen;
if (!display) Logger_Abort("Failed to open display");
screen = DefaultScreen(display);
win_display = display;
win_screen = screen;
win_rootWin = RootWindow(display, screen);
/* TODO: Use Xinerama and XRandR for querying these */
Display_Bounds.Width = DisplayWidth(display, screen);
Display_Bounds.Height = DisplayHeight(display, screen);
Display_BitsPerPixel = DefaultDepth(display, screen);
}
void Window_Create(int width, int height) {
XSetWindowAttributes attributes = { 0 };
XSizeHints hints = { 0 };
struct GraphicsMode mode;
cc_uintptr addr;
int supported, x, y;
x = Display_CentreX(width);
y = Display_CentreY(height);
GraphicsMode_MakeDefault(&mode);
/* Open a display connection to the X server, and obtain the screen and root window */
addr = (cc_uintptr)win_display;
Platform_Log3("Display: %x, Screen %i, Root window: %h", &addr, &win_screen, &win_rootWin);
Window_RegisterAtoms();
win_eventMask = StructureNotifyMask /*| SubstructureNotifyMask*/ | ExposureMask |
KeyReleaseMask | KeyPressMask | KeymapStateMask | PointerMotionMask |
FocusChangeMask | ButtonPressMask | ButtonReleaseMask | EnterWindowMask |
LeaveWindowMask | PropertyChangeMask;
win_visual = GLContext_SelectVisual(&mode);
Platform_LogConst("Opening render window... ");
attributes.colormap = XCreateColormap(win_display, win_rootWin, win_visual.visual, AllocNone);
attributes.event_mask = win_eventMask;
win_handle = XCreateWindow(win_display, win_rootWin, x, y, width, height,
0, win_visual.depth /* CopyFromParent*/, InputOutput, win_visual.visual,
CWColormap | CWEventMask | CWBackPixel | CWBorderPixel, &attributes);
if (!win_handle) Logger_Abort("XCreateWindow failed");
hints.base_width = width;
hints.base_height = height;
hints.flags = PSize | PPosition;
XSetWMNormalHints(win_display, win_handle, &hints);
/* Register for window destroy notification */
XSetWMProtocols(win_display, win_handle, &wm_destroy, 1);
/* Request that auto-repeat is only set on devices that support it physically.
This typically means that it's turned off for keyboards (which is what we want).
We prefer this method over XAutoRepeatOff/On, because the latter needs to
be reset before the program exits. */
XkbSetDetectableAutoRepeat(win_display, true, &supported);
Window_RefreshBounds(width, height);
Window_Exists = true;
Window_Handle = (void*)win_handle;
}
void Window_SetTitle(const String* title) {
char str[600];
Platform_ConvertString(str, title);
XStoreName(win_display, win_handle, str);
}
static char clipboard_copy_buffer[256];
static char clipboard_paste_buffer[256];
static String clipboard_copy_text = String_FromArray(clipboard_copy_buffer);
static String clipboard_paste_text = String_FromArray(clipboard_paste_buffer);
void Clipboard_GetText(String* value) {
Window owner = XGetSelectionOwner(win_display, xa_clipboard);
int i;
if (!owner) return; /* no window owner */
XConvertSelection(win_display, xa_clipboard, xa_utf8_string, xa_data_sel, win_handle, 0);
clipboard_paste_text.length = 0;
/* wait up to 1 second for SelectionNotify event to arrive */
for (i = 0; i < 100; i++) {
Window_ProcessEvents();
if (clipboard_paste_text.length) {
String_AppendString(value, &clipboard_paste_text);
return;
} else {
Thread_Sleep(10);
}
}
}
void Clipboard_SetText(const String* value) {
String_Copy(&clipboard_copy_text, value);
XSetSelectionOwner(win_display, xa_clipboard, win_handle, 0);
}
void Window_Show(void) { XMapWindow(win_display, win_handle); }
int Window_GetWindowState(void) {
Atom prop_type;
unsigned long items, after;
int prop_format;
Atom* data = NULL;
XGetWindowProperty(win_display, win_handle,
net_wm_state, 0, 256, false, xa_atom, &prop_type,
&prop_format, &items, &after, &data);
bool fullscreen = false, minimised = false;
int maximised = 0, i;
/* TODO: Check this works right */
if (data && items) {
for (i = 0; i < items; i++) {
Atom atom = data[i];
if (atom == net_wm_state_maximized_horizontal ||
atom == net_wm_state_maximized_vertical) {
maximised++;
} else if (atom == net_wm_state_minimized) {
minimised = true;
} else if (atom == net_wm_state_fullscreen) {
fullscreen = true;
}
}
}
if (data) XFree(data);
if (fullscreen) return WINDOW_STATE_FULLSCREEN;
if (minimised) return WINDOW_STATE_MINIMISED;
if (maximised == 2) return WINDOW_STATE_MAXIMISED;
return WINDOW_STATE_NORMAL;
}
static void Window_ToggleFullscreen(long op) {
XEvent ev = { 0 };