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dolphin/Source/Plugins/Plugin_VideoSoftware/Src/GLUtil.cpp

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// Copyright (C) 2003-2009 Dolphin Project.
// 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, version 2.0.
// 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 2.0 for more details.
// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/
// Official SVN repository and contact information can be found at
// http://code.google.com/p/dolphin-emu/
#include "main.h"
#include "VideoConfig.h"
#include "IniFile.h"
#include "Setup.h"
#include "GLUtil.h"
#if defined(_WIN32)
#include "Win32.h"
static HDC hDC = NULL; // Private GDI Device Context
static HGLRC hRC = NULL; // Permanent Rendering Context
extern HINSTANCE g_hInstance;
#else
GLWindow GLWin;
#endif
// Handles OpenGL and the window
// Window dimensions.
static int s_backbuffer_width;
static int s_backbuffer_height;
void OpenGL_SwapBuffers()
{
#if defined(USE_WX) && USE_WX
GLWin.glCanvas->SwapBuffers();
#elif defined(_WIN32)
SwapBuffers(hDC);
#elif defined(HAVE_X11) && HAVE_X11
glXSwapBuffers(GLWin.dpy, GLWin.win);
#endif
}
u32 OpenGL_GetBackbufferWidth()
{
return s_backbuffer_width;
}
u32 OpenGL_GetBackbufferHeight()
{
return s_backbuffer_height;
}
void OpenGL_SetWindowText(const char *text)
{
#if defined(USE_WX) && USE_WX
// GLWin.frame->SetTitle(wxString::FromAscii(text));
#elif defined(_WIN32)
// TODO convert text to unicode and change SetWindowTextA to SetWindowText
SetWindowTextA(EmuWindow::GetWnd(), text);
#elif defined(HAVE_X11) && HAVE_X11
// Tell X to ask the window manager to set the window title.
// (X itself doesn't provide window title functionality.)
XStoreName(GLWin.dpy, GLWin.win, text);
#endif
}
// Draw messages on top of the screen
unsigned int Callback_PeekMessages()
{
#ifdef _WIN32
// TODO: peekmessage
MSG msg;
while (PeekMessage(&msg, 0, 0, 0, PM_REMOVE))
{
if (msg.message == WM_QUIT)
return FALSE;
TranslateMessage(&msg);
DispatchMessage(&msg);
}
return TRUE;
#else
return FALSE;
#endif
}
// Show the current FPS
void UpdateFPSDisplay(const char *text)
{
char temp[512];
sprintf(temp, "SVN R%s: SW: %s", svn_rev_str, text);
OpenGL_SetWindowText(temp);
}
// Create rendering window.
// Call browser: Core.cpp:EmuThread() > main.cpp:Video_Initialize()
bool OpenGL_Create(SVideoInitialize &_VideoInitialize, int _twidth, int _theight)
{
int xPos, yPos;
g_VideoInitialize.pRequestWindowSize(xPos, yPos, _twidth, _theight);
#if defined(_WIN32)
EmuWindow::SetSize(_twidth, _theight);
#endif
// Control window size and picture scaling
s_backbuffer_width = _twidth;
s_backbuffer_height = _theight;
g_VideoInitialize.pPeekMessages = &Callback_PeekMessages;
g_VideoInitialize.pUpdateFPSDisplay = &UpdateFPSDisplay;
#if defined(USE_WX) && USE_WX
int args[] = {WX_GL_RGBA, WX_GL_DOUBLEBUFFER, WX_GL_DEPTH_SIZE, 16, 0};
wxSize size(_twidth, _theight);
GLWin.panel = (wxPanel *)g_VideoInitialize.pWindowHandle;
GLWin.glCanvas = new wxGLCanvas(GLWin.panel, wxID_ANY, args,
wxPoint(0,0), size, wxSUNKEN_BORDER);
GLWin.glCtxt = new wxGLContext(GLWin.glCanvas);
GLWin.glCanvas->Show(TRUE);
GLWin.glCanvas->SetCurrent(*GLWin.glCtxt);
#elif defined(_WIN32)
// Create rendering window in Windows
g_VideoInitialize.pWindowHandle = (void*)EmuWindow::Create((HWND)g_VideoInitialize.pWindowHandle, g_hInstance, _T("Please wait..."));
// Show the window
EmuWindow::Show();
if (g_VideoInitialize.pWindowHandle == NULL)
{
g_VideoInitialize.pSysMessage("failed to create window");
return false;
}
GLuint PixelFormat; // Holds The Results After Searching For A Match
DWORD dwExStyle; // Window Extended Style
DWORD dwStyle; // Window Style
RECT rcdesktop;
GetWindowRect(GetDesktopWindow(), &rcdesktop);
dwExStyle = WS_EX_APPWINDOW | WS_EX_WINDOWEDGE;
dwStyle = WS_OVERLAPPEDWINDOW;
RECT rc = {0, 0, s_backbuffer_width, s_backbuffer_height};
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;
// EmuWindow::GetWnd() is either the new child window or the new separate window
SetWindowPos(EmuWindow::GetWnd(), NULL, X, Y, rc.right-rc.left, rc.bottom-rc.top, SWP_NOREPOSITION | SWP_NOZORDER);
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(EmuWindow::GetWnd()))) {
PanicAlert("(1) Can't create an OpenGL Device context. Fail.");
return false;
}
if (!(PixelFormat = ChoosePixelFormat(hDC,&pfd))) {
PanicAlert("(2) Can't find a suitable PixelFormat.");
return false;
}
if (!SetPixelFormat(hDC, PixelFormat, &pfd)) {
PanicAlert("(3) Can't set the PixelFormat.");
return false;
}
if (!(hRC = wglCreateContext(hDC))) {
PanicAlert("(4) Can't create an OpenGL rendering context.");
return false;
}
// --------------------------------------
#elif defined(HAVE_X11) && HAVE_X11
XVisualInfo *vi;
Colormap cmap;
int glxMajorVersion, glxMinorVersion;
Atom wmDelete;
// attributes for a single buffered visual in RGBA format with at least
// 8 bits per color and a 24 bit depth buffer
int attrListSgl[] = {GLX_RGBA, GLX_RED_SIZE, 8,
GLX_GREEN_SIZE, 8,
GLX_BLUE_SIZE, 8,
GLX_DEPTH_SIZE, 24,
None};
// attributes for a double buffered visual in RGBA format with at least
// 8 bits per color and a 24 bit depth buffer
int attrListDbl[] = { GLX_RGBA, GLX_DOUBLEBUFFER,
GLX_RED_SIZE, 8,
GLX_GREEN_SIZE, 8,
GLX_BLUE_SIZE, 8,
GLX_DEPTH_SIZE, 24,
GLX_SAMPLE_BUFFERS_ARB, GLX_SAMPLES_ARB, 1, None };
int attrListDefault[] = {
GLX_RGBA,
GLX_RED_SIZE, 1,
GLX_GREEN_SIZE, 1,
GLX_BLUE_SIZE, 1,
GLX_DOUBLEBUFFER,
GLX_DEPTH_SIZE, 1,
None };
GLWin.dpy = XOpenDisplay(0);
GLWin.parent = (Window)g_VideoInitialize.pWindowHandle;
GLWin.screen = DefaultScreen(GLWin.dpy);
// Get an appropriate visual
vi = glXChooseVisual(GLWin.dpy, GLWin.screen, attrListDbl);
if (vi == NULL)
{
vi = glXChooseVisual(GLWin.dpy, GLWin.screen, attrListSgl);
if (vi != NULL)
{
ERROR_LOG(VIDEO, "Only Singlebuffered Visual!");
}
else
{
vi = glXChooseVisual(GLWin.dpy, GLWin.screen, attrListDefault);
if (vi == NULL)
{
ERROR_LOG(VIDEO, "Could not choose visual (glXChooseVisual)");
exit(0);
}
}
}
else
NOTICE_LOG(VIDEO, "Got Doublebuffered Visual!");
glXQueryVersion(GLWin.dpy, &glxMajorVersion, &glxMinorVersion);
NOTICE_LOG(VIDEO, "glX-Version %d.%d", glxMajorVersion, glxMinorVersion);
// Create a GLX context.
GLWin.ctx = glXCreateContext(GLWin.dpy, vi, 0, GL_TRUE);
if(!GLWin.ctx)
{
PanicAlert("Couldn't Create GLX context.Quit");
exit(0); // TODO: Don't bring down entire Emu
}
if (GLWin.parent == 0)
GLWin.parent = RootWindow(GLWin.dpy, vi->screen);
// Create a color map.
cmap = XCreateColormap(GLWin.dpy, GLWin.parent, vi->visual, AllocNone);
GLWin.attr.colormap = cmap;
GLWin.attr.border_pixel = 0;
XkbSetDetectableAutoRepeat(GLWin.dpy, True, NULL);
// Create a window in window mode
GLWin.attr.event_mask = ExposureMask | KeyPressMask | KeyReleaseMask |
StructureNotifyMask | EnterWindowMask | LeaveWindowMask | FocusChangeMask;
GLWin.win = XCreateWindow(GLWin.dpy, GLWin.parent,
xPos, yPos, _twidth, _theight, 0, vi->depth, InputOutput, vi->visual,
CWBorderPixel | CWColormap | CWEventMask, &GLWin.attr);
// Only set window title and handle wm_delete_events if in windowed mode
wmDelete = XInternAtom(GLWin.dpy, "WM_DELETE_WINDOW", True);
XSetWMProtocols(GLWin.dpy, GLWin.win, &wmDelete, 1);
XSetStandardProperties(GLWin.dpy, GLWin.win, "GPU",
"GPU", None, NULL, 0, NULL);
XMapRaised(GLWin.dpy, GLWin.win);
g_VideoInitialize.pWindowHandle = (void *)GLWin.win;
#endif
return true;
}
bool OpenGL_MakeCurrent()
{
#if defined(USE_WX) && USE_WX
GLWin.glCanvas->SetCurrent(*GLWin.glCtxt);
#elif defined(_WIN32)
return wglMakeCurrent(hDC,hRC) ? true : false;
#elif defined(HAVE_X11) && HAVE_X11
g_VideoInitialize.pRequestWindowSize(GLWin.x, GLWin.y, (int&)GLWin.width, (int&)GLWin.height);
XMoveResizeWindow(GLWin.dpy, GLWin.win, GLWin.x, GLWin.y, GLWin.width, GLWin.height);
return glXMakeCurrent(GLWin.dpy, GLWin.win, GLWin.ctx);
#endif
return true;
}
// Update window width, size and etc. Called from Render.cpp
void OpenGL_Update()
{
#if defined(USE_WX) && USE_WX
GLWin.glCanvas->GetSize((int *)&GLWin.width, (int *)&GLWin.height);
s_backbuffer_width = GLWin.width;
s_backbuffer_height = GLWin.height;
#elif defined(_WIN32)
RECT rcWindow;
if (!EmuWindow::GetParentWnd())
{
// We are not rendering to a child window - use client size.
GetClientRect(EmuWindow::GetWnd(), &rcWindow);
}
else
{
// We are rendering to a child window - use parent size.
GetWindowRect(EmuWindow::GetParentWnd(), &rcWindow);
}
// Get the new window width and height
// See below for documentation
int width = rcWindow.right - rcWindow.left;
int height = rcWindow.bottom - rcWindow.top;
// If we are rendering to a child window
if (EmuWindow::GetParentWnd() != 0)
::MoveWindow(EmuWindow::GetWnd(), 0, 0, width, height, FALSE);
s_backbuffer_width = width;
s_backbuffer_height = height;
#elif defined(HAVE_X11) && HAVE_X11
// We just check all of our events here
XEvent event;
int num_events;
for (num_events = XPending(GLWin.dpy);num_events > 0;num_events--) {
XNextEvent(GLWin.dpy, &event);
switch(event.type) {
case ConfigureNotify:
Window winDummy;
unsigned int borderDummy, depthDummy;
XGetGeometry(GLWin.dpy, GLWin.win, &winDummy, &GLWin.x, &GLWin.y,
&GLWin.width, &GLWin.height, &borderDummy, &depthDummy);
s_backbuffer_width = GLWin.width;
s_backbuffer_height = GLWin.height;
break;
case ClientMessage:
if ((unsigned long) event.xclient.data.l[0] == XInternAtom(GLWin.dpy, "WM_DELETE_WINDOW", False))
g_VideoInitialize.pCoreMessage(WM_USER_STOP);
if ((unsigned long) event.xclient.data.l[0] == XInternAtom(GLWin.dpy, "RESIZE", False))
XMoveResizeWindow(GLWin.dpy, GLWin.win, event.xclient.data.l[1],
event.xclient.data.l[2], event.xclient.data.l[3], event.xclient.data.l[4]);
return;
break;
default:
break;
}
}
return;
#endif
}
// Close plugin
void OpenGL_Shutdown()
{
#if defined(USE_WX) && USE_WX
delete GLWin.glCanvas;
#elif defined(_WIN32)
if (hRC) // Do We Have A Rendering Context?
{
if (!wglMakeCurrent(NULL,NULL)) // Are We Able To Release The DC And RC Contexts?
{
// [F|RES]: if this fails i dont see the message box and
// cant get out of the modal state so i disable it.
// This function fails only if i render to main window
// MessageBox(NULL,"Release Of DC And RC Failed.", "SHUTDOWN ERROR", MB_OK | MB_ICONINFORMATION);
}
if (!wglDeleteContext(hRC)) // Are We Able To Delete The RC?
{
ERROR_LOG(VIDEO, "Release Rendering Context Failed.");
}
hRC = NULL; // Set RC To NULL
}
if (hDC && !ReleaseDC(EmuWindow::GetWnd(), hDC)) // Are We Able To Release The DC
{
ERROR_LOG(VIDEO, "Release Device Context Failed.");
hDC = NULL; // Set DC To NULL
}
#elif defined(HAVE_X11) && HAVE_X11
if (GLWin.ctx)
{
if (!glXMakeCurrent(GLWin.dpy, None, NULL))
{
ERROR_LOG(VIDEO, "Could not release drawing context.\n");
}
XUnmapWindow(GLWin.dpy, GLWin.win);
glXDestroyContext(GLWin.dpy, GLWin.ctx);
XCloseDisplay(GLWin.dpy);
GLWin.ctx = NULL;
}
#endif
}
GLuint OpenGL_ReportGLError(const char *function, const char *file, int line)
{
GLint err = glGetError();
if (err != GL_NO_ERROR)
{
ERROR_LOG(VIDEO, "%s:%d: (%s) OpenGL error 0x%x - %s\n", file, line, function, err, gluErrorString(err));
}
return err;
}
void OpenGL_ReportARBProgramError()
{
const GLubyte* pstr = glGetString(GL_PROGRAM_ERROR_STRING_ARB);
if (pstr != NULL && pstr[0] != 0)
{
GLint loc = 0;
glGetIntegerv(GL_PROGRAM_ERROR_POSITION_ARB, &loc);
ERROR_LOG(VIDEO, "program error at %d: ", loc);
ERROR_LOG(VIDEO, (char*)pstr);
ERROR_LOG(VIDEO, "");
}
}
bool OpenGL_ReportFBOError(const char *function, const char *file, int line)
{
unsigned int fbo_status = glCheckFramebufferStatusEXT(GL_FRAMEBUFFER_EXT);
if (fbo_status != GL_FRAMEBUFFER_COMPLETE_EXT)
{
const char *error = "-";
switch (fbo_status)
{
case GL_FRAMEBUFFER_INCOMPLETE_ATTACHMENT_EXT: error = "INCOMPLETE_ATTACHMENT_EXT"; break;
case GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT_EXT: error = "INCOMPLETE_MISSING_ATTACHMENT_EXT"; break;
case GL_FRAMEBUFFER_INCOMPLETE_DIMENSIONS_EXT: error = "INCOMPLETE_DIMENSIONS_EXT"; break;
case GL_FRAMEBUFFER_INCOMPLETE_FORMATS_EXT: error = "INCOMPLETE_FORMATS_EXT"; break;
case GL_FRAMEBUFFER_INCOMPLETE_DRAW_BUFFER_EXT: error = "INCOMPLETE_DRAW_BUFFER_EXT"; break;
case GL_FRAMEBUFFER_INCOMPLETE_READ_BUFFER_EXT: error = "INCOMPLETE_READ_BUFFER_EXT"; break;
case GL_FRAMEBUFFER_UNSUPPORTED_EXT: error = "UNSUPPORTED_EXT"; break;
}
ERROR_LOG(VIDEO, "%s:%d: (%s) OpenGL FBO error - %s\n", file, line, function, error);
return false;
}
return true;
}
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