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

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// Copyright (C) 2003 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 "Globals.h"
#include "VideoConfig.h"
#include "IniFile.h"
#include "svnrev.h"
#include "Setup.h"
#include "Render.h"
#if defined(_WIN32)
#include "OS/Win32.h"
#else
struct RECT
{
int left, top;
int right, bottom;
};
#endif
#include "GLUtil.h"
// Handles OpenGL and the window
// Window dimensions.
static int s_backbuffer_width;
static int s_backbuffer_height;
#ifndef _WIN32
GLWindow GLWin;
#endif
#if defined(_WIN32)
static HDC hDC = NULL; // Private GDI Device Context
static HGLRC hRC = NULL; // Permanent Rendering Context
extern HINSTANCE g_hInstance;
#endif
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 // GLX
// 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: GL: %s", SVN_REV_STR, text);
OpenGL_SetWindowText(temp);
}
#if defined(HAVE_X11) && HAVE_X11
THREAD_RETURN XEventThread(void *pArg);
void CreateXWindow (void)
{
Atom wmProtocols[1];
// Setup window attributes
GLWin.attr.colormap = XCreateColormap(GLWin.dpy,
GLWin.parent, GLWin.vi->visual, AllocNone);
GLWin.attr.event_mask = ExposureMask | KeyPressMask | KeyReleaseMask |
StructureNotifyMask | ResizeRedirectMask;
GLWin.attr.background_pixel = BlackPixel(GLWin.dpy, GLWin.screen);
GLWin.attr.border_pixel = 0;
// Create the window
GLWin.win = XCreateWindow(GLWin.dpy, GLWin.parent,
GLWin.x, GLWin.y, GLWin.width, GLWin.height, 0, GLWin.vi->depth, InputOutput, GLWin.vi->visual,
CWBorderPixel | CWBackPixel | CWColormap | CWEventMask, &GLWin.attr);
wmProtocols[0] = XInternAtom(GLWin.dpy, "WM_DELETE_WINDOW", True);
XSetWMProtocols(GLWin.dpy, GLWin.win, wmProtocols, 1);
XSetStandardProperties(GLWin.dpy, GLWin.win, "GPU", "GPU", None, NULL, 0, NULL);
XSelectInput(GLWin.dpy, GLWin.win, ExposureMask | KeyPressMask | KeyReleaseMask |
StructureNotifyMask | EnterWindowMask | LeaveWindowMask | FocusChangeMask );
XMapRaised(GLWin.dpy, GLWin.win);
XSync(GLWin.dpy, True);
GLWin.xEventThread = new Common::Thread(XEventThread, NULL);
}
void DestroyXWindow(void)
{
/* switch back to original desktop resolution if we were in fullscreen */
XUnmapWindow(GLWin.dpy, GLWin.win);
GLWin.win = 0;
XFreeColormap(GLWin.dpy, GLWin.attr.colormap);
if (GLWin.xEventThread)
GLWin.xEventThread->WaitForDeath();
GLWin.xEventThread = NULL;
}
THREAD_RETURN XEventThread(void *pArg)
{
while (GLWin.win)
{
XEvent event;
KeySym key;
for (int num_events = XPending(GLWin.dpy); num_events > 0; num_events--) {
XNextEvent(GLWin.dpy, &event);
switch(event.type) {
case KeyPress:
key = XLookupKeysym((XKeyEvent*)&event, 0);
switch (key)
{
case XK_3:
OSDChoice = 1;
// Toggle native resolution
if (!(g_Config.bNativeResolution || g_Config.b2xResolution))
g_Config.bNativeResolution = true;
else if (g_Config.bNativeResolution && Renderer::AllowCustom())
{
g_Config.bNativeResolution = false;
if (Renderer::Allow2x())
g_Config.b2xResolution = true;
}
else if (Renderer::AllowCustom())
g_Config.b2xResolution = false;
break;
case XK_4:
OSDChoice = 2;
// Toggle aspect ratio
g_Config.iAspectRatio = (g_Config.iAspectRatio + 1) & 3;
break;
case XK_5:
OSDChoice = 3;
// Toggle EFB copy
if (g_Config.bEFBCopyDisable || g_Config.bCopyEFBToTexture)
{
g_Config.bEFBCopyDisable = !g_Config.bEFBCopyDisable;
g_Config.bCopyEFBToTexture = false;
}
else
{
g_Config.bCopyEFBToTexture = !g_Config.bCopyEFBToTexture;
}
break;
case XK_6:
OSDChoice = 4;
g_Config.bDisableFog = !g_Config.bDisableFog;
break;
case XK_7:
OSDChoice = 5;
g_Config.bDisableLighting = !g_Config.bDisableLighting;
break;
default:
break;
}
break;
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 ((ulong) event.xclient.data.l[0] == XInternAtom(GLWin.dpy, "WM_DELETE_WINDOW", False))
g_VideoInitialize.pCoreMessage(WM_USER_STOP);
if ((ulong) 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]);
break;
default:
break;
}
}
Common::SleepCurrentThread(20);
}
return 0;
}
#endif
// Create rendering window.
// Call browser: Core.cpp:EmuThread() > main.cpp:Video_Initialize()
bool OpenGL_Create(SVideoInitialize &_VideoInitialize, int _iwidth, int _iheight)
{
int _tx, _ty, _twidth, _theight;
g_VideoInitialize.pRequestWindowSize(_tx, _ty, _twidth, _theight);
// 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)
g_VideoInitialize.pWindowHandle = (void*)EmuWindow::Create((HWND)g_VideoInitialize.pWindowHandle, g_hInstance, _T("Please wait..."));
if (g_VideoInitialize.pWindowHandle == NULL)
{
g_VideoInitialize.pSysMessage("failed to create window");
return false;
}
// Show the window
EmuWindow::Show();
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
};
GLuint PixelFormat; // Holds The Results After Searching For A Match
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
int glxMajorVersion, glxMinorVersion;
// 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, g_Config.iMultisampleMode != MULTISAMPLE_OFF?1:0,
GLX_SAMPLES_ARB, g_Config.iMultisampleMode != MULTISAMPLE_OFF?1:0,
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;
g_VideoInitialize.pWindowHandle = (Display *)GLWin.dpy;
GLWin.screen = DefaultScreen(GLWin.dpy);
if (GLWin.parent == 0)
GLWin.parent = RootWindow(GLWin.dpy, GLWin.screen);
XkbSetDetectableAutoRepeat(GLWin.dpy, True, NULL);
glXQueryVersion(GLWin.dpy, &glxMajorVersion, &glxMinorVersion);
NOTICE_LOG(VIDEO, "glX-Version %d.%d", glxMajorVersion, glxMinorVersion);
/* get an appropriate visual */
GLWin.vi = glXChooseVisual(GLWin.dpy, GLWin.screen, attrListDbl);
if (GLWin.vi == NULL)
{
GLWin.vi = glXChooseVisual(GLWin.dpy, GLWin.screen, attrListSgl);
if (GLWin.vi != NULL)
{
ERROR_LOG(VIDEO, "Only Singlebuffered Visual!");
}
else
{
GLWin.vi = glXChooseVisual(GLWin.dpy, GLWin.screen, attrListDefault);
if (GLWin.vi == NULL)
{
ERROR_LOG(VIDEO, "Could not choose visual (glXChooseVisual)");
exit(0);
}
}
}
else
NOTICE_LOG(VIDEO, "Got Doublebuffered Visual!");
// Create a GLX context.
GLWin.ctx = glXCreateContext(GLWin.dpy, GLWin.vi, 0, GL_TRUE);
if (!GLWin.ctx)
{
PanicAlert("Couldn't Create GLX context.Quit");
exit(0); // TODO: Don't bring down entire Emu
}
GLWin.x = _tx;
GLWin.y = _ty;
GLWin.width = _twidth;
GLWin.height = _theight;
CreateXWindow();
g_VideoInitialize.pXWindow = (Window *) &GLWin.win;
#endif
return true;
}
bool OpenGL_MakeCurrent()
{
// connect the glx-context to the window
#if defined(USE_WX) && USE_WX
GLWin.glCanvas->SetCurrent(*GLWin.glCtxt);
#elif defined(_WIN32)
return wglMakeCurrent(hDC,hRC) != 0;
#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
RECT rcWindow = {0};
rcWindow.right = GLWin.width;
rcWindow.bottom = GLWin.height;
// TODO fill in
#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 && (s_backbuffer_width != width || s_backbuffer_height != height) && width >= 4 && height >= 4)
{
::MoveWindow(EmuWindow::GetWnd(), 0, 0, width, height, FALSE);
s_backbuffer_width = width;
s_backbuffer_height = height;
}
#elif defined(HAVE_X11) && HAVE_X11
#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
}
EmuWindow::Close();
#elif defined(HAVE_X11) && HAVE_X11
DestroyXWindow();
if (GLWin.ctx && !glXMakeCurrent(GLWin.dpy, None, NULL))
NOTICE_LOG(VIDEO, "Could not release drawing context.");
if (GLWin.ctx)
{
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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