142 lines
3.4 KiB
C++
142 lines
3.4 KiB
C++
// Copyright 2014 Dolphin Emulator Project
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// Licensed under GPLv2
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// Refer to the license.txt file included.
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#include <string>
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#include "DolphinWX/GLInterface/GLInterface.h"
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#include "VideoCommon/RenderBase.h"
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#include "VideoCommon/VideoConfig.h"
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typedef int ( * PFNGLXSWAPINTERVALSGIPROC) (int interval);
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static PFNGLXSWAPINTERVALSGIPROC glXSwapIntervalSGI = nullptr;
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// Show the current FPS
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void cInterfaceGLX::UpdateFPSDisplay(const std::string& text)
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{
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XStoreName(GLWin.evdpy, GLWin.win, text.c_str());
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}
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void cInterfaceGLX::SwapInterval(int Interval)
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{
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if (glXSwapIntervalSGI)
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glXSwapIntervalSGI(Interval);
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else
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ERROR_LOG(VIDEO, "No support for SwapInterval (framerate clamped to monitor refresh rate).");
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}
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void* cInterfaceGLX::GetFuncAddress(const std::string& name)
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{
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return (void*)glXGetProcAddress((const GLubyte*)name.c_str());
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}
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void cInterfaceGLX::Swap()
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{
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glXSwapBuffers(GLWin.dpy, GLWin.win);
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}
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// Create rendering window.
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// Call browser: Core.cpp:EmuThread() > main.cpp:Video_Initialize()
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bool cInterfaceGLX::Create(void *&window_handle)
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{
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int glxMajorVersion, glxMinorVersion;
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// attributes for a single buffered visual in RGBA format with at least
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// 8 bits per color
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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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None};
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// attributes for a double buffered visual in RGBA format with at least
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// 8 bits per color
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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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None };
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int attrListDefault[] = {
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GLX_RGBA,
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GLX_RED_SIZE, 1,
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GLX_GREEN_SIZE, 1,
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GLX_BLUE_SIZE, 1,
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GLX_DOUBLEBUFFER,
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None };
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GLWin.dpy = XOpenDisplay(nullptr);
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GLWin.evdpy = XOpenDisplay(nullptr);
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GLWin.parent = (Window)window_handle;
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GLWin.screen = DefaultScreen(GLWin.dpy);
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if (GLWin.parent == 0)
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GLWin.parent = RootWindow(GLWin.dpy, GLWin.screen);
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glXQueryVersion(GLWin.dpy, &glxMajorVersion, &glxMinorVersion);
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NOTICE_LOG(VIDEO, "glX-Version %d.%d", glxMajorVersion, glxMinorVersion);
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// Get an appropriate visual
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GLWin.vi = glXChooseVisual(GLWin.dpy, GLWin.screen, attrListDbl);
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if (GLWin.vi == nullptr)
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{
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GLWin.vi = glXChooseVisual(GLWin.dpy, GLWin.screen, attrListSgl);
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if (GLWin.vi != nullptr)
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{
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ERROR_LOG(VIDEO, "Only single buffered visual!");
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}
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else
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{
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GLWin.vi = glXChooseVisual(GLWin.dpy, GLWin.screen, attrListDefault);
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if (GLWin.vi == nullptr)
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{
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ERROR_LOG(VIDEO, "Could not choose visual (glXChooseVisual)");
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return false;
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}
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}
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}
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else
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NOTICE_LOG(VIDEO, "Got double buffered visual!");
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// Create a GLX context.
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GLWin.ctx = glXCreateContext(GLWin.dpy, GLWin.vi, nullptr, GL_TRUE);
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if (!GLWin.ctx)
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{
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PanicAlert("Unable to create GLX context.");
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return false;
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}
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XWindow.CreateXWindow();
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window_handle = (void *)GLWin.win;
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return true;
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}
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bool cInterfaceGLX::MakeCurrent()
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{
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bool success = glXMakeCurrent(GLWin.dpy, GLWin.win, GLWin.ctx);
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if (success)
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{
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// load this function based on the current bound context
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glXSwapIntervalSGI = (PFNGLXSWAPINTERVALSGIPROC)GLInterface->GetFuncAddress("glXSwapIntervalSGI");
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}
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return success;
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}
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bool cInterfaceGLX::ClearCurrent()
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{
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return glXMakeCurrent(GLWin.dpy, None, nullptr);
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}
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// Close backend
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void cInterfaceGLX::Shutdown()
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{
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XWindow.DestroyXWindow();
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if (GLWin.ctx)
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{
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glXDestroyContext(GLWin.dpy, GLWin.ctx);
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XCloseDisplay(GLWin.dpy);
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XCloseDisplay(GLWin.evdpy);
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GLWin.ctx = nullptr;
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}
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}
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