pcsx2/plugins/GSdx/GSWndWGL.cpp

318 lines
8.3 KiB
C++

/*
* Copyright (C) 2007-2012 Gabest
* http://www.gabest.org
*
* 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, 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 GNU Make; see the file COPYING. If not, write to
* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA USA.
* http://www.gnu.org/copyleft/gpl.html
*
*/
#include "stdafx.h"
#include "GSWndWGL.h"
#ifdef _WINDOWS
GSWndWGL::GSWndWGL()
: m_NativeWindow(NULL), m_NativeDisplay(NULL), m_context(NULL)
{
}
bool GSWndWGL::CreateContext(int major, int minor)
{
if ( !m_NativeDisplay || !m_NativeWindow )
{
fprintf( stderr, "Wrong display/window\n" );
exit(1);
}
// GL2 context are quite easy but we need GL3 which is another painful story...
m_context = wglCreateContext(m_NativeDisplay);
if (!m_context) {
fprintf(stderr, "Failed to create a 2.0 context\n");
return false;
}
// FIXME test it
// Note: albeit every tutorial said that we need an opengl context to use the GL function wglCreateContextAttribsARB
// On linux it works without the extra temporary context, not sure the limitation still applied
if (major >= 3) {
AttachContext();
// Create a context
int context_attribs[] =
{
WGL_CONTEXT_MAJOR_VERSION_ARB, major,
WGL_CONTEXT_MINOR_VERSION_ARB, minor,
// FIXME : Request a debug context to ease opengl development
// Note: don't support deprecated feature (pre openg 3.1)
//GLX_CONTEXT_FLAGS_ARB, GLX_CONTEXT_DEBUG_BIT_ARB | GLX_CONTEXT_FORWARD_COMPATIBLE_BIT_ARB,
WGL_CONTEXT_FLAGS_ARB, WGL_CONTEXT_DEBUG_BIT_ARB,
0
};
PFNWGLCREATECONTEXTATTRIBSARBPROC wglCreateContextAttribsARB = (PFNWGLCREATECONTEXTATTRIBSARBPROC)wglGetProcAddress("wglCreateContextAttribsARB");
if (!wglCreateContextAttribsARB) {
fprintf(stderr, "Failed to init wglCreateContextAttribsARB function pointer\n");
return false;
}
HGLRC context30 = wglCreateContextAttribsARB(m_NativeDisplay, NULL, context_attribs);
if (!context30) {
fprintf(stderr, "Failed to create a 3.x context\n");
return false;
}
DetachContext();
wglDeleteContext(m_context);
m_context = context30;
fprintf(stderr, "3.x GL context successfully created\n");
}
return true;
}
void GSWndWGL::AttachContext()
{
if (!IsContextAttached()) {
wglMakeCurrent(m_NativeDisplay, m_context);
m_ctx_attached = true;
}
}
void GSWndWGL::DetachContext()
{
if (IsContextAttached()) {
wglMakeCurrent(NULL, NULL);
m_ctx_attached = false;
}
}
//TODO: DROP ???
void GSWndWGL::CheckContext()
{
#if 0
int glxMajorVersion, glxMinorVersion;
glXQueryVersion(m_NativeDisplay, &glxMajorVersion, &glxMinorVersion);
if (glXIsDirect(m_NativeDisplay, m_context))
fprintf(stderr, "glX-Version %d.%d with Direct Rendering\n", glxMajorVersion, glxMinorVersion);
else
fprintf(stderr, "glX-Version %d.%d with Indirect Rendering !!! It won't support properly opengl\n", glxMajorVersion, glxMinorVersion);
#endif
}
bool GSWndWGL::Attach(void* handle, bool managed)
{
m_NativeWindow = (HWND)handle;
m_managed = managed;
if (!OpenWGLDisplay()) return false;
if (!CreateContext(3, 3)) return false;
AttachContext();
CheckContext();
// TODO
//m_swapinterval = (PFNGLXSWAPINTERVALMESAPROC)glXGetProcAddress((const GLubyte*) "glXSwapIntervalMESA");
//PFNGLXSWAPINTERVALMESAPROC m_swapinterval = (PFNGLXSWAPINTERVALMESAPROC)glXGetProcAddress((const GLubyte*) "glXSwapInterval");
PopulateGlFunction();
UpdateWindow(m_NativeWindow);
return true;
}
void GSWndWGL::Detach()
{
// Actually the destructor is not called when there is only a GSclose/GSshutdown
// The window still need to be closed
DetachContext();
if (m_context) wglDeleteContext(m_context);
m_context = NULL;
CloseWGLDisplay();
}
bool GSWndWGL::OpenWGLDisplay()
{
GLuint PixelFormat; // Holds The Results After Searching For A Match
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
};
m_NativeDisplay = GetDC(m_NativeWindow);
if (!m_NativeDisplay)
{
MessageBox(NULL, "(1) Can't Create A GL Device Context.", "ERROR", MB_OK | MB_ICONEXCLAMATION);
return false;
}
PixelFormat = ChoosePixelFormat(m_NativeDisplay, &pfd);
if (!PixelFormat)
{
MessageBox(NULL, "(2) Can't Find A Suitable PixelFormat.", "ERROR", MB_OK | MB_ICONEXCLAMATION);
return false;
}
if (!SetPixelFormat(m_NativeDisplay, PixelFormat, &pfd))
{
MessageBox(NULL, "(3) Can't Set The PixelFormat.", "ERROR", MB_OK | MB_ICONEXCLAMATION);
return false;
}
return true;
}
void GSWndWGL::CloseWGLDisplay()
{
if (m_NativeDisplay && !ReleaseDC(m_NativeWindow, m_NativeDisplay)) // Are We Able To Release The DC
{
MessageBox(NULL, "Release Device Context Failed.", "SHUTDOWN ERROR", MB_OK | MB_ICONINFORMATION);
}
m_NativeDisplay = NULL; // Set DC To NULL
}
//TODO: GSopen 1 => Drop?
bool GSWndWGL::Create(const string& title, int w, int h)
{
#if 0
if(m_NativeWindow) return false;
if(w <= 0 || h <= 0) {
w = theApp.GetConfig("ModeWidth", 640);
h = theApp.GetConfig("ModeHeight", 480);
}
m_managed = true;
// note this part must be only executed when replaying .gs debug file
m_NativeDisplay = XOpenDisplay(NULL);
int attrListDbl[] = { GLX_RGBA, GLX_DOUBLEBUFFER,
GLX_RED_SIZE, 8,
GLX_GREEN_SIZE, 8,
GLX_BLUE_SIZE, 8,
GLX_DEPTH_SIZE, 24,
None
};
XVisualInfo* vi = glXChooseVisual(m_NativeDisplay, DefaultScreen(m_NativeDisplay), attrListDbl);
/* create a color map */
XSetWindowAttributes attr;
attr.colormap = XCreateColormap(m_NativeDisplay, RootWindow(m_NativeDisplay, vi->screen),
vi->visual, AllocNone);
attr.border_pixel = 0;
attr.event_mask = ExposureMask | KeyPressMask | KeyReleaseMask | ButtonPressMask |
StructureNotifyMask | SubstructureRedirectMask | SubstructureNotifyMask |
EnterWindowMask | LeaveWindowMask | FocusChangeMask ;
// Create a window at the last position/size
m_NativeWindow = XCreateWindow(m_NativeDisplay, RootWindow(m_NativeDisplay, vi->screen),
0 , 0 , w, h, 0, vi->depth, InputOutput, vi->visual,
CWBorderPixel | CWColormap | CWEventMask, &attr);
XMapWindow (m_NativeDisplay, m_NativeWindow);
XFree(vi);
if (!CreateContext(3, 3)) return false;
AttachContext();
return (m_NativeWindow != 0);
#else
return false;
#endif
}
//Same as DX
GSVector4i GSWndWGL::GetClientRect()
{
GSVector4i r;
::GetClientRect(m_NativeWindow, r);
return r;
}
void* GSWndWGL::GetProcAddress(const char* name, bool opt)
{
void* ptr = (void*)wglGetProcAddress(name);
if (ptr == NULL) {
fprintf(stderr, "Failed to find %s\n", name);
}
return ptr;
}
//TODO: check extensions supported or not
//FIXME : extension allocation
void GSWndWGL::SetVSync(bool enable)
{
// m_swapinterval uses an integer as parameter
// 0 -> disable vsync
// n -> wait n frame
//if (m_swapinterval) m_swapinterval((int)enable);
// wglSwapIntervalEXT(!enable);
}
void GSWndWGL::Flip()
{
SwapBuffers(m_NativeDisplay);
}
void GSWndWGL::Show()
{
}
void GSWndWGL::Hide()
{
}
void GSWndWGL::HideFrame()
{
}
// Returns FALSE if the window has no title, or if th window title is under the strict
// management of the emulator.
bool GSWndWGL::SetWindowText(const char* title)
{
return false;
}
#endif