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pcsx2/plugins/zzogl-pg-cg/opengl/GLWin32.cpp

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/* ZZ Open GL graphics plugin
* Copyright (c)2009-2010 zeydlitz@gmail.com, arcum42@gmail.com
* Based on Zerofrog's ZeroGS KOSMOS (c)2005-2008
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include "GS.h"
#include "GLWin.h"
#ifdef GL_WIN32_WINDOW
HWND GShwnd = NULL;
HDC hDC = NULL; // Private GDI Device Context
HGLRC hRC = NULL; // Permanent Rendering Context
LRESULT WINAPI MsgProc(HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam)
{
static int nWindowWidth = 0, nWindowHeight = 0;
switch (msg)
{
case WM_DESTROY:
PostQuitMessage(0);
return 0;
case WM_KEYDOWN:
// switch(wParam) {
// case VK_ESCAPE:
// SendMessage(hWnd, WM_DESTROY, 0L, 0L);
// break;
// }
break;
case WM_SIZE:
nWindowWidth = lParam & 0xffff;
nWindowHeight = lParam >> 16;
GLWin.UpdateWindowSize(nWindowWidth, nWindowHeight);
break;
case WM_SIZING:
// if button is 0, then just released so can resize
if (GetSystemMetrics(SM_SWAPBUTTON) ? !GetAsyncKeyState(VK_RBUTTON) : !GetAsyncKeyState(VK_LBUTTON))
{
SetDeviceSize(nWindowWidth, nWindowHeight);
}
break;
case WM_SETCURSOR:
SetCursor(NULL);
break;
}
return DefWindowProc(hWnd, msg, wParam, lParam);
}
bool GLWindow::CreateWindow(void *pDisplay)
{
RECT rc, rcdesktop;
rc.left = 0;
rc.top = 0;
rc.right = conf.width;
rc.bottom = conf.height;
WNDCLASSEX wc;
HINSTANCE hInstance = GetModuleHandle(NULL); // Grab An Instance For Our Window
DWORD dwExStyle, dwStyle;
wc.cbSize = sizeof(WNDCLASSEX);
wc.style = CS_HREDRAW | CS_VREDRAW | CS_OWNDC; // Redraw On Move, And Own DC For Window
wc.lpfnWndProc = (WNDPROC) MsgProc; // MsgProc Handles Messages
wc.cbClsExtra = 0; // No Extra Window Data
wc.cbWndExtra = 0; // No Extra Window Data
wc.hInstance = hInstance; // Set The Instance
wc.hIcon = NULL;
wc.hIconSm = NULL; // Load The Default Icon
wc.hCursor = LoadCursor(NULL, IDC_ARROW); // Load The Arrow Pointer
wc.hbrBackground = (HBRUSH)GetStockObject(BLACK_BRUSH); // No Background Required For GL
wc.lpszMenuName = NULL; // We Don't Want A Menu
wc.lpszClassName = L"PS2EMU_ZEROGS"; // Set The Class Name
RegisterClassEx(&wc);
if (conf.fullscreen())
{
dwExStyle = WS_EX_APPWINDOW;
dwStyle = WS_POPUP;
}
else
{
dwExStyle = WS_EX_APPWINDOW | WS_EX_WINDOWEDGE;
dwStyle = WS_OVERLAPPEDWINDOW | WS_BORDER;
}
dwStyle |= WS_CLIPSIBLINGS | WS_CLIPCHILDREN;
AdjustWindowRectEx(&rc, dwStyle, false, dwExStyle);
GetWindowRect(GetDesktopWindow(), &rcdesktop);
GShwnd = CreateWindowEx( dwExStyle, // Extended Style For The Window
L"PS2EMU_ZEROGS", // Class Name
L"ZZOgl", // Window Title
dwStyle, // Selected Window Style
(rcdesktop.right - (rc.right - rc.left)) / 2, // Window Position
(rcdesktop.bottom - (rc.bottom - rc.top)) / 2, // Window Position
rc.right - rc.left, // Calculate Adjusted Window Width
rc.bottom - rc.top, // Calculate Adjusted Window Height
NULL, // No Parent Window
NULL, // No Menu
hInstance, // Instance
NULL); // Don't Pass Anything To WM_CREATE
if (GShwnd == NULL)
{
ZZLog::Error_Log("Failed to create window. Exiting...");
return false;
}
if (pDisplay != NULL) *(HWND*)pDisplay = GShwnd;
// set just in case
SetWindowLongPtr(GShwnd, GWLP_WNDPROC, (LPARAM)(WNDPROC)MsgProc);
ShowWindow(GShwnd, SW_SHOWDEFAULT);
UpdateWindow(GShwnd);
SetFocus(GShwnd);
if (pDisplay == NULL) ZZLog::Error_Log("Failed to create window. Exiting...");
return (pDisplay != NULL);
}
bool GLWindow::ReleaseContext()
{
if (hRC) // Do We Have A Rendering Context?
{
if (!wglMakeCurrent(NULL, NULL)) // Are We Able To Release The DC And RC Contexts?
{
MessageBox(NULL, L"Release Of DC And RC Failed.", L"SHUTDOWN ERROR", MB_OK | MB_ICONINFORMATION);
}
if (!wglDeleteContext(hRC)) // Are We Able To Delete The RC?
{
MessageBox(NULL, L"Release Rendering Context Failed.", L"SHUTDOWN ERROR", MB_OK | MB_ICONINFORMATION);
}
hRC = NULL; // Set RC To NULL
}
if (hDC && !ReleaseDC(GShwnd, hDC)) // Are We Able To Release The DC
{
MessageBox(NULL, L"Release Device Context Failed.", L"SHUTDOWN ERROR", MB_OK | MB_ICONINFORMATION);
hDC = NULL; // Set DC To NULL
}
return true;
}
void GLWindow::CloseWindow()
{
if (GShwnd != NULL)
{
DestroyWindow(GShwnd);
GShwnd = NULL;
}
}
bool GLWindow::DisplayWindow(int _width, int _height)
{
GLuint PixelFormat; // Holds The Results After Searching For A Match
DWORD dwExStyle; // Window Extended Style
DWORD dwStyle; // Window Style
RECT rcdesktop;
GetWindowRect(GetDesktopWindow(), &rcdesktop);
if (conf.fullscreen())
{
backbuffer.w = rcdesktop.right - rcdesktop.left;
backbuffer.h = rcdesktop.bottom - rcdesktop.top;
dwExStyle = WS_EX_APPWINDOW;
dwStyle = WS_POPUP;
ShowCursor(false);
}
else
{
dwExStyle = WS_EX_APPWINDOW | WS_EX_WINDOWEDGE;
dwStyle = WS_OVERLAPPEDWINDOW;
backbuffer.w = _width;
backbuffer.h = _height;
}
dwStyle |= WS_CLIPSIBLINGS | WS_CLIPCHILDREN;
RECT rc;
rc.left = 0;
rc.top = 0;
rc.right = backbuffer.w;
rc.bottom = backbuffer.h;
AdjustWindowRectEx(&rc, dwStyle, false, dwExStyle);
int X = (rcdesktop.right - rcdesktop.left) / 2 - (rc.right - rc.left) / 2;
int Y = (rcdesktop.bottom - rcdesktop.top) / 2 - (rc.bottom - rc.top) / 2;
SetWindowLong(GShwnd, GWL_STYLE, dwStyle);
SetWindowLong(GShwnd, GWL_EXSTYLE, dwExStyle);
SetWindowPos(GShwnd, HWND_TOP, X, Y, rc.right - rc.left, rc.bottom - rc.top, SWP_SHOWWINDOW);
if (conf.fullscreen())
{
DEVMODE dmScreenSettings;
memset(&dmScreenSettings, 0, sizeof(dmScreenSettings));
dmScreenSettings.dmSize = sizeof(dmScreenSettings);
dmScreenSettings.dmPelsWidth = backbuffer.w;
dmScreenSettings.dmPelsHeight = backbuffer.h;
dmScreenSettings.dmBitsPerPel = 32;
dmScreenSettings.dmFields = DM_BITSPERPEL | DM_PELSWIDTH | DM_PELSHEIGHT;
// Try To Set Selected Mode And Get Results. NOTE: CDS_FULLSCREEN Gets Rid Of Start Bar.
if (ChangeDisplaySettings(&dmScreenSettings, CDS_FULLSCREEN) != DISP_CHANGE_SUCCESSFUL)
{
if (MessageBox(NULL,
L"The Requested Fullscreen Mode Is Not Supported By\nYour Video Card. Use Windowed Mode Instead?",
L"NeHe GL",
MB_YESNO | MB_ICONEXCLAMATION) == IDYES)
conf.setFullscreen(false);
else
return false;
}
}
else
{
// change to default resolution
ChangeDisplaySettings(NULL, 0);
}
PIXELFORMATDESCRIPTOR pfd = // pfd Tells Windows How We Want Things To Be
{
sizeof(PIXELFORMATDESCRIPTOR), // Size Of This Pixel Format Descriptor
1, // Version Number
PFD_DRAW_TO_WINDOW | // Format Must Support Window
PFD_SUPPORT_OPENGL | // Format Must Support OpenGL
PFD_DOUBLEBUFFER, // Must Support Double Buffering
PFD_TYPE_RGBA, // Request An RGBA Format
32, // Select Our Color Depth
0, 0, 0, 0, 0, 0, // Color Bits Ignored
0, // 8bit Alpha Buffer
0, // Shift Bit Ignored
0, // No Accumulation Buffer
0, 0, 0, 0, // Accumulation Bits Ignored
24, // 24Bit Z-Buffer (Depth Buffer)
8, // 8bit Stencil Buffer
0, // No Auxiliary Buffer
PFD_MAIN_PLANE, // Main Drawing Layer
0, // Reserved
0, 0, 0 // Layer Masks Ignored
};
if (!(hDC = GetDC(GShwnd)))
{
MessageBox(NULL, L"(1) Can't Create A GL Device Context.", L"ERROR", MB_OK | MB_ICONEXCLAMATION);
return false;
}
if (!(PixelFormat = ChoosePixelFormat(hDC, &pfd)))
{
MessageBox(NULL, L"(2) Can't Find A Suitable PixelFormat.", L"ERROR", MB_OK | MB_ICONEXCLAMATION);
return false;
}
if (!SetPixelFormat(hDC, PixelFormat, &pfd))
{
MessageBox(NULL, L"(3) Can't Set The PixelFormat.", L"ERROR", MB_OK | MB_ICONEXCLAMATION);
return false;
}
if (!(hRC = wglCreateContext(hDC)))
{
MessageBox(NULL, L"(4) Can't Create A GL Rendering Context.", L"ERROR", MB_OK | MB_ICONEXCLAMATION);
return false;
}
if (!wglMakeCurrent(hDC, hRC))
{
MessageBox(NULL, L"(5) Can't Activate The GL Rendering Context.", L"ERROR", MB_OK | MB_ICONEXCLAMATION);
return false;
}
UpdateWindow(GShwnd);
return true;
}
void GLWindow::SwapGLBuffers()
{
static u32 lastswaptime = 0;
if (glGetError() != GL_NO_ERROR) ZZLog::Debug_Log("glError before swap!");
SwapBuffers(hDC);
lastswaptime = timeGetTime();
}
void GLWindow::SetTitle(char *strtitle)
{
if (!conf.fullscreen()) SetWindowText(GShwnd, wxString::FromUTF8(strtitle));
}
void GLWindow::ResizeCheck()
{
}
extern void ChangeDeviceSize(int nNewWidth, int nNewHeight);
void GLWindow::ProcessEvents()
{
MSG msg;
ZeroMemory(&msg, sizeof(msg));
while (1)
{
if (PeekMessage(&msg, NULL, 0U, 0U, PM_REMOVE))
{
switch (msg.message)
{
case WM_KEYDOWN :
int my_KeyEvent = msg.wParam;
bool my_bShift = !!(GetKeyState(VK_SHIFT) & 0x8000);
switch (msg.wParam)
{
case VK_F5:
case VK_F6:
case VK_F7:
case VK_F9:
OnFKey(msg.wParam - VK_F1 + 1, my_bShift);
break;
case VK_ESCAPE:
if (conf.fullscreen())
{
// destroy that msg
conf.setFullscreen(false);
ChangeDeviceSize(conf.width, conf.height);
UpdateWindow(GShwnd);
continue; // so that msg doesn't get sent
}
else
{
SendMessage(GShwnd, WM_DESTROY, 0, 0);
return;
}
break;
}
break;
}
TranslateMessage(&msg);
DispatchMessage(&msg);
}
else
{
break;
}
}
if ((GetKeyState(VK_MENU) & 0x8000) && (GetKeyState(VK_RETURN) & 0x8000))
{
conf.zz_options.fullscreen = !conf.zz_options.fullscreen;
SetDeviceSize(
(conf.fullscreen()) ? 1280 : conf.width,
(conf.fullscreen()) ? 960 : conf.height);
}
}
#endif
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