dolphin/Source/Core/DolphinWX/Src/GLInterface/GLX.cpp

161 lines
4.0 KiB
C++

// 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 "Host.h"
#include "RenderBase.h"
#include "VideoConfig.h"
#include "../GLInterface.h"
#include "GLX.h"
// Show the current FPS
void cInterfaceGLX::UpdateFPSDisplay(const char *text)
{
XStoreName(GLWin.evdpy, GLWin.win, text);
}
void cInterfaceGLX::SwapInterval(int Interval)
{
if (glXSwapIntervalSGI)
glXSwapIntervalSGI(Interval);
else
ERROR_LOG(VIDEO, "No support for SwapInterval (framerate clamped to monitor refresh rate).");
}
void cInterfaceGLX::Swap()
{
glXSwapBuffers(GLWin.dpy, GLWin.win);
}
// Create rendering window.
// Call browser: Core.cpp:EmuThread() > main.cpp:Video_Initialize()
bool cInterfaceGLX::Create(void *&window_handle)
{
int _tx, _ty, _twidth, _theight;
Host_GetRenderWindowSize(_tx, _ty, _twidth, _theight);
// Control window size and picture scaling
s_backbuffer_width = _twidth;
s_backbuffer_height = _theight;
int glxMajorVersion, glxMinorVersion;
// attributes for a single buffered visual in RGBA format with at least
// 8 bits per color
int attrListSgl[] = {GLX_RGBA, GLX_RED_SIZE, 8,
GLX_GREEN_SIZE, 8,
GLX_BLUE_SIZE, 8,
None};
// attributes for a double buffered visual in RGBA format with at least
// 8 bits per color
int attrListDbl[] = {GLX_RGBA, GLX_DOUBLEBUFFER,
GLX_RED_SIZE, 8,
GLX_GREEN_SIZE, 8,
GLX_BLUE_SIZE, 8,
None };
int attrListDefault[] = {
GLX_RGBA,
GLX_RED_SIZE, 1,
GLX_GREEN_SIZE, 1,
GLX_BLUE_SIZE, 1,
GLX_DOUBLEBUFFER,
None };
GLWin.dpy = XOpenDisplay(0);
GLWin.evdpy = XOpenDisplay(0);
GLWin.parent = (Window)window_handle;
GLWin.screen = DefaultScreen(GLWin.dpy);
if (GLWin.parent == 0)
GLWin.parent = RootWindow(GLWin.dpy, GLWin.screen);
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 single buffered visual!");
}
else
{
GLWin.vi = glXChooseVisual(GLWin.dpy, GLWin.screen, attrListDefault);
if (GLWin.vi == NULL)
{
ERROR_LOG(VIDEO, "Could not choose visual (glXChooseVisual)");
return false;
}
}
}
else
NOTICE_LOG(VIDEO, "Got double buffered visual!");
// Create a GLX context.
GLWin.ctx = glXCreateContext(GLWin.dpy, GLWin.vi, 0, GL_TRUE);
if (!GLWin.ctx)
{
PanicAlert("Unable to create GLX context.");
return false;
}
GLWin.x = _tx;
GLWin.y = _ty;
GLWin.width = _twidth;
GLWin.height = _theight;
XWindow.CreateXWindow();
window_handle = (void *)GLWin.win;
return true;
}
bool cInterfaceGLX::MakeCurrent()
{
// connect the glx-context to the window
#if defined(HAVE_WX) && (HAVE_WX)
Host_GetRenderWindowSize(GLWin.x, GLWin.y,
(int&)GLWin.width, (int&)GLWin.height);
XMoveResizeWindow(GLWin.evdpy, GLWin.win, GLWin.x, GLWin.y,
GLWin.width, GLWin.height);
#endif
return glXMakeCurrent(GLWin.dpy, GLWin.win, GLWin.ctx);
}
bool cInterfaceGLX::ClearCurrent()
{
return glXMakeCurrent(GLWin.dpy, None, NULL);
}
// Close backend
void cInterfaceGLX::Shutdown()
{
XWindow.DestroyXWindow();
if (GLWin.ctx)
{
glXDestroyContext(GLWin.dpy, GLWin.ctx);
XCloseDisplay(GLWin.dpy);
XCloseDisplay(GLWin.evdpy);
GLWin.ctx = NULL;
}
}