mirror of https://github.com/PCSX2/pcsx2.git
479 lines
13 KiB
C++
479 lines
13 KiB
C++
/* ZZ Open GL graphics plugin
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* Copyright (c)2009-2010 zeydlitz@gmail.com, arcum42@gmail.com
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* Based on Zerofrog's ZeroGS KOSMOS (c)2005-2008
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include "Util.h"
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#include "GLWin.h"
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#ifdef GL_X11_WINDOW
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#include <X11/Xlib.h>
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#include <stdlib.h>
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#ifdef USE_GSOPEN2
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bool GLWindow::CreateWindow(void *pDisplay)
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{
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glWindow = (Window)*((u32*)(pDisplay)+1);
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// Do not take the display which come from pcsx2 neither change it.
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// You need a new one to do the operation in the GS thread
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glDisplay = XOpenDisplay(NULL);
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return true;
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}
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#else
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bool GLWindow::CreateWindow(void *pDisplay)
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{
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// init support of multi thread
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if (!XInitThreads())
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ZZLog::Error_Log("Failed to init the xlib concurent threads");
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glDisplay = XOpenDisplay(NULL);
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if (pDisplay == NULL)
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{
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ZZLog::Error_Log("Failed to create window. Exiting...");
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return false;
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}
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// Allow pad to use the display
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*(Display**)pDisplay = glDisplay;
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// Pad can use the window to grab the input. For the moment just set to 0 to avoid
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// to grab an unknow window... Anyway GSopen1 might be dropped in the future
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*((u32*)(pDisplay)+1) = 0;
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return true;
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}
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#endif
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bool GLWindow::ReleaseContext()
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{
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bool status = true;
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if (!glDisplay) return status;
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// free the context
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if (context)
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{
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if (!glXMakeCurrent(glDisplay, None, NULL)) {
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ZZLog::Error_Log("Could not release drawing context.");
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status = false;
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}
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glXDestroyContext(glDisplay, context);
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context = NULL;
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}
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// free the visual
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if (vi) {
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XFree(vi);
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vi = NULL;
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}
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return status;
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}
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void GLWindow::CloseWindow()
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{
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SaveConfig();
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if (!glDisplay) return;
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XCloseDisplay(glDisplay);
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glDisplay = NULL;
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}
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bool GLWindow::CreateVisual()
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{
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// attributes for a single buffered visual in RGBA format with at least
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// 8 bits per color and a 24 bit depth buffer
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int attrListSgl[] = {GLX_RGBA, GLX_RED_SIZE, 8,
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GLX_GREEN_SIZE, 8,
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GLX_BLUE_SIZE, 8,
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GLX_DEPTH_SIZE, 24,
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None
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};
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// attributes for a double buffered visual in RGBA format with at least
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// 8 bits per color and a 24 bit depth buffer
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int attrListDbl[] = { GLX_RGBA, GLX_DOUBLEBUFFER,
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GLX_RED_SIZE, 8,
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GLX_GREEN_SIZE, 8,
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GLX_BLUE_SIZE, 8,
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GLX_DEPTH_SIZE, 24,
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None
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};
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/* get an appropriate visual */
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vi = glXChooseVisual(glDisplay, DefaultScreen(glDisplay), attrListDbl);
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if (vi == NULL)
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{
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vi = glXChooseVisual(glDisplay, DefaultScreen(glDisplay), attrListSgl);
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doubleBuffered = false;
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ZZLog::Error_Log("Only Singlebuffered Visual!");
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}
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else
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{
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doubleBuffered = true;
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ZZLog::Error_Log("Got Doublebuffered Visual!");
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}
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if (vi == NULL)
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{
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ZZLog::Error_Log("Failed to get buffered Visual!");
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return false;
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}
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return true;
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}
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void GLWindow::GetWindowSize()
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{
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if (!glDisplay or !glWindow) return;
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unsigned int borderDummy;
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Window winDummy;
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s32 xDummy;
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s32 yDummy;
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XLockDisplay(glDisplay);
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XGetGeometry(glDisplay, glWindow, &winDummy, &xDummy, &yDummy, &width, &height, &borderDummy, &depth);
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XUnlockDisplay(glDisplay);
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// update the gl buffer size
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UpdateWindowSize(width, height);
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#ifndef USE_GSOPEN2
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// too verbose!
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ZZLog::Dev_Log("Resolution %dx%d. Depth %d bpp. Position (%d,%d)", width, height, depth, conf.x, conf.y);
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#endif
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}
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void GLWindow::GetGLXVersion()
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{
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int glxMajorVersion, glxMinorVersion;
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glXQueryVersion(glDisplay, &glxMajorVersion, &glxMinorVersion);
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if (glXIsDirect(glDisplay, context))
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ZZLog::Error_Log("glX-Version %d.%d with Direct Rendering", glxMajorVersion, glxMinorVersion);
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else
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ZZLog::Error_Log("glX-Version %d.%d with Indirect Rendering !!! It will be slow", glxMajorVersion, glxMinorVersion);
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}
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void GLWindow::CreateContextGL()
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{
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if (!glDisplay) return;
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// Create a 2.0 opengl context. My understanding, you need it to call the gl function to get the 3.0 context
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context = glXCreateContext(glDisplay, vi, NULL, GL_TRUE);
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// FIXME
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// On Geforce7, the context 3.0 creation crashes with BadAlloc (insufficient resources for operation)
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// So until a better solution is found, keep the 2.0 context -- Gregory
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return;
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PFNGLXCREATECONTEXTATTRIBSARBPROC glXCreateContextAttribsARB = (PFNGLXCREATECONTEXTATTRIBSARBPROC) glXGetProcAddress((GLubyte *) "glXCreateContextAttribsARB");
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PFNGLXCHOOSEFBCONFIGPROC glXChooseFBConfig = (PFNGLXCHOOSEFBCONFIGPROC) glXGetProcAddress((GLubyte *) "glXChooseFBConfig");
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if (!glXCreateContextAttribsARB or !glXChooseFBConfig) {
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ZZLog::Error_Log("No support of OpenGL 3.0\n");
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return;
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}
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// Note this part seems linux specific
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int fbcount = 0;
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GLXFBConfig *framebuffer_config = glXChooseFBConfig(glDisplay, DefaultScreen(glDisplay), NULL, &fbcount);
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if (!framebuffer_config or !fbcount) return;
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// At least create a 3.0 context with compatibility profile
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int attribs[] = {
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GLX_CONTEXT_MAJOR_VERSION_ARB, 3,
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GLX_CONTEXT_MINOR_VERSION_ARB, 0,
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GLX_CONTEXT_PROFILE_MASK_ARB, GLX_CONTEXT_COMPATIBILITY_PROFILE_BIT_ARB,
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0
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};
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GLXContext context_temp = glXCreateContextAttribsARB(glDisplay, framebuffer_config[0], NULL, true, attribs);
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if (context_temp) {
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ZZLog::Error_Log("Create a 3.0 opengl context");
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glXDestroyContext(glDisplay, context);
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context = context_temp;
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}
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}
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#ifdef USE_GSOPEN2
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bool GLWindow::DisplayWindow(int _width, int _height)
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{
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GetWindowSize();
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if (!CreateVisual()) return false;
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// connect the glx-context to the window
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CreateContextGL();
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glXMakeCurrent(glDisplay, glWindow, context);
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GetGLXVersion();
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return true;
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}
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#else
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bool GLWindow::DisplayWindow(int _width, int _height)
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{
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backbuffer.w = _width;
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backbuffer.h = _height;
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if (!CreateVisual()) return false;
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/* create a color map */
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attr.colormap = XCreateColormap(glDisplay, RootWindow(glDisplay, vi->screen),
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vi->visual, AllocNone);
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attr.border_pixel = 0;
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attr.event_mask = ExposureMask | KeyPressMask | KeyReleaseMask | ButtonPressMask |
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StructureNotifyMask | SubstructureRedirectMask | SubstructureNotifyMask |
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EnterWindowMask | LeaveWindowMask | FocusChangeMask ;
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// Create a window at the last position/size
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glWindow = XCreateWindow(glDisplay, RootWindow(glDisplay, vi->screen),
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conf.x , conf.y , _width, _height, 0, vi->depth, InputOutput, vi->visual,
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CWBorderPixel | CWColormap | CWEventMask,
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&attr);
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/* Allow to kill properly the window */
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Atom wmDelete = XInternAtom(glDisplay, "WM_DELETE_WINDOW", True);
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XSetWMProtocols(glDisplay, glWindow, &wmDelete, 1);
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// Set icon name
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XSetIconName(glDisplay, glWindow, "ZZogl-pg");
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// Draw the window
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XMapRaised(glDisplay, glWindow);
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XSync(glDisplay, false);
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// connect the glx-context to the window
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CreateContextGL();
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glXMakeCurrent(glDisplay, glWindow, context);
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GetGLXVersion();
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// Always start in window mode
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fullScreen = 0;
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GetWindowSize();
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return true;
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}
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#endif
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void GLWindow::SwapGLBuffers()
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{
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if (glGetError() != GL_NO_ERROR) ZZLog::Debug_Log("glError before swap!");
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// FIXME I think we need to flush when there is only 1 visual buffer
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glXSwapBuffers(glDisplay, glWindow);
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// glClear(GL_COLOR_BUFFER_BIT);
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}
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u32 THR_KeyEvent = 0; // Value for key event processing between threads
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bool THR_bShift = false;
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bool THR_bCtrl = false;
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void GLWindow::ProcessEvents()
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{
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FUNCLOG
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#ifdef USE_GSOPEN2
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GetWindowSize();
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#else
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ResizeCheck();
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#endif
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if (THR_KeyEvent) // This value was passed from GSKeyEvents which could be in another thread
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{
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int my_KeyEvent = THR_KeyEvent;
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bool my_bShift = THR_bShift;
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bool my_bCtrl = THR_bCtrl;
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THR_KeyEvent = 0;
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switch (my_KeyEvent)
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{
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case XK_F5:
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case XK_F6:
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case XK_F7:
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case XK_F9:
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// Note: to avoid some clash with PCSX2 shortcut in GSOpen2.
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// GS shortcut will only be activated when ctrl is press
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if (my_bCtrl)
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OnFKey(my_KeyEvent - XK_F1 + 1, my_bShift);
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break;
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}
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}
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}
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// ************************** Function that are either stub or useless in GSOPEN2
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#define _NET_WM_STATE_REMOVE 0
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#define _NET_WM_STATE_ADD 1
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#define _NET_WM_STATE_TOGGLE 2
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void GLWindow::Force43Ratio()
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{
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#ifndef USE_GSOPEN2
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// avoid black border in fullscreen
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if (fullScreen && conf.isWideScreen) {
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conf.width = width;
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conf.height = height;
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}
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if(!fullScreen && !conf.isWideScreen) {
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// Compute the width based on height
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s32 new_width = (4*height)/3;
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// do not bother to resize for 5 pixels. Avoid a loop
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// due to round value
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if ( abs(new_width - width) > 5) {
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width = new_width;
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conf.width = new_width;
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// resize the window
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XLockDisplay(glDisplay);
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XResizeWindow(glDisplay, glWindow, new_width, height);
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XSync(glDisplay, False);
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XUnlockDisplay(glDisplay);
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}
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}
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#endif
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}
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void GLWindow::UpdateGrabKey()
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{
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// Do not stole the key in debug mode. It is not breakpoint friendly...
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#ifndef _DEBUG
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XLockDisplay(glDisplay);
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if (fullScreen) {
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XGrabPointer(glDisplay, glWindow, True, ButtonPressMask, GrabModeAsync, GrabModeAsync, glWindow, None, CurrentTime);
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XGrabKeyboard(glDisplay, glWindow, True, GrabModeAsync, GrabModeAsync, CurrentTime);
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} else {
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XUngrabPointer(glDisplay, CurrentTime);
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XUngrabKeyboard(glDisplay, CurrentTime);
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}
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XUnlockDisplay(glDisplay);
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#endif
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}
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void GLWindow::ToggleFullscreen()
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{
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#ifndef USE_GSOPEN2
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if (!glDisplay or !glWindow) return;
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Force43Ratio();
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u32 mask = SubstructureRedirectMask | SubstructureNotifyMask;
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// Setup a new event structure
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XClientMessageEvent cme;
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cme.type = ClientMessage;
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cme.send_event = True;
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cme.display = glDisplay;
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cme.window = glWindow;
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cme.message_type = XInternAtom(glDisplay, "_NET_WM_STATE", False);
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cme.format = 32;
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// Note: can not use _NET_WM_STATE_TOGGLE because the WM can change the fullscreen state
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// and screw up the fullscreen variable... The test on fulscreen restore a sane configuration
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cme.data.l[0] = fullScreen ? _NET_WM_STATE_REMOVE : _NET_WM_STATE_ADD;
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cme.data.l[1] = (u32)XInternAtom(glDisplay, "_NET_WM_STATE_FULLSCREEN", False);
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cme.data.l[2] = 0;
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cme.data.l[3] = 0;
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// send the event
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XLockDisplay(glDisplay);
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if (!XSendEvent(glDisplay, RootWindow(glDisplay, vi->screen), False, mask, (XEvent*)(&cme)))
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ZZLog::Error_Log("Failed to send event: toggle fullscreen");
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else {
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fullScreen = (!fullScreen);
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conf.setFullscreen(fullScreen);
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}
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XUnlockDisplay(glDisplay);
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// Apply the change
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XSync(glDisplay, false);
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// Wait a little that the VM does his joes. Actually the best is to check some WM event
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// but it not sure it will appear so a time out is necessary.
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usleep(100*1000); // 100 us should be far enough for old computer and unnoticeable for users
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// update info structure
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GetWindowSize();
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UpdateGrabKey();
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// avoid black border in widescreen fullscreen
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if (fullScreen && conf.isWideScreen) {
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conf.width = width;
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conf.height = height;
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}
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// Hide the cursor in the right bottom corner
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if(fullScreen)
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XWarpPointer(glDisplay, None, glWindow, 0, 0, 0, 0, 2*width, 2*height);
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#endif
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}
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void GLWindow::ResizeCheck()
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{
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XEvent event;
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if (!glDisplay or !glWindow) return;
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XLockDisplay(glDisplay);
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while (XCheckTypedWindowEvent(glDisplay, glWindow, ConfigureNotify, &event))
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{
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if ((event.xconfigure.width != width) || (event.xconfigure.height != height))
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{
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width = event.xconfigure.width;
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height = event.xconfigure.height;
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Force43Ratio();
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UpdateWindowSize(width, height);
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}
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if (!fullScreen) {
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if ((event.xconfigure.x != conf.x) || (event.xconfigure.y != conf.y))
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{
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// Fixme; x&y occassionally gives values near the top left corner rather then the real values,
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// causing the window to change positions when adjusting ZZOgl's settings.
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conf.x = event.xconfigure.x;
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conf.y = event.xconfigure.y;
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}
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}
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}
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XUnlockDisplay(glDisplay);
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}
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void GLWindow::SetTitle(char *strtitle)
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{
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#ifndef USE_GSOPEN2
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if (!glDisplay or !glWindow) return;
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if (fullScreen) return;
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XTextProperty prop;
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memset(&prop, 0, sizeof(prop));
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char* ptitle = strtitle;
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if (XStringListToTextProperty(&ptitle, 1, &prop)) {
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XLockDisplay(glDisplay);
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XSetWMName(glDisplay, glWindow, &prop);
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XUnlockDisplay(glDisplay);
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}
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XFree(prop.value);
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#endif
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}
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#endif
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