mirror of https://github.com/PCSX2/pcsx2.git
427 lines
10 KiB
C++
427 lines
10 KiB
C++
/*
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* Copyright (C) 2007-2012 Gabest
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* http://www.gabest.org
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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, or (at your option)
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* 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 GNU Make; see the file COPYING. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA USA.
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* http://www.gnu.org/copyleft/gpl.html
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*
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*/
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#include "stdafx.h"
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#include "GSWndEGL.h"
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#if defined(__unix__)
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// static method
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int GSWndEGL::SelectPlatform()
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{
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// Check the supported extension
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const char* client_extensions = eglQueryString(EGL_NO_DISPLAY, EGL_EXTENSIONS);
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if (!client_extensions)
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{
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fprintf(stderr, "EGL: Client extension not supported\n");
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return 0;
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}
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fprintf(stdout, "EGL: Supported extensions: %s\n", client_extensions);
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// Check platform extensions are supported (Note: there are core in 1.5)
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if (!strstr(client_extensions, "EGL_EXT_platform_base"))
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{
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fprintf(stderr, "EGL: Dynamic platform selection isn't supported\n");
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return 0;
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}
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// Finally we can select the platform
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#if GS_EGL_X11
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if (strstr(client_extensions, "EGL_EXT_platform_x11"))
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{
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fprintf(stdout, "EGL: select X11 platform\n");
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return EGL_PLATFORM_X11_KHR;
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}
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#endif
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#if GS_EGL_WL
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if (strstr(client_extensions, "EGL_EXT_platform_wayland"))
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{
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fprintf(stdout, "EGL: select Wayland platform\n");
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return EGL_PLATFORM_WAYLAND_KHR;
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}
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#endif
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fprintf(stderr, "EGL: no compatible platform found\n");
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return 0;
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}
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GSWndEGL::GSWndEGL(int platform)
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: m_native_window(nullptr), m_platform(platform)
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{
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}
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void GSWndEGL::CreateContext(int major, int minor)
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{
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EGLConfig eglConfig;
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EGLint numConfigs = 0;
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EGLint contextAttribs[] =
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{
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EGL_CONTEXT_MAJOR_VERSION_KHR, major,
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EGL_CONTEXT_MINOR_VERSION_KHR, minor,
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#ifdef ENABLE_OGL_DEBUG
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EGL_CONTEXT_FLAGS_KHR, EGL_CONTEXT_OPENGL_DEBUG_BIT_KHR,
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#else
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// Open Source isn't happy with an unsupported flags...
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//EGL_CONTEXT_FLAGS_KHR, GL_CONTEXT_FLAG_NO_ERROR_BIT_KHR,
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#endif
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EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR, EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR,
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EGL_NONE
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};
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EGLint NullContextAttribs[] = {EGL_NONE};
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EGLint attrList[] = {
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EGL_RED_SIZE, 8,
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EGL_GREEN_SIZE, 8,
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EGL_BLUE_SIZE, 8,
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EGL_DEPTH_SIZE, 0,
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EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT,
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EGL_NONE
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};
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BindAPI();
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eglChooseConfig(m_eglDisplay, attrList, &eglConfig, 1, &numConfigs);
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if (numConfigs == 0)
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{
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fprintf(stderr, "EGL: Failed to get a frame buffer config! (0x%x)\n", eglGetError());
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throw GSDXRecoverableError();
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}
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m_eglSurface = eglCreatePlatformWindowSurface(m_eglDisplay, eglConfig, m_native_window, nullptr);
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if (m_eglSurface == EGL_NO_SURFACE)
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{
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fprintf(stderr, "EGL: Failed to get a window surface\n");
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throw GSDXRecoverableError();
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}
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m_eglContext = eglCreateContext(m_eglDisplay, eglConfig, EGL_NO_CONTEXT, contextAttribs);
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EGLint status = eglGetError();
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if (status == EGL_BAD_ATTRIBUTE || status == EGL_BAD_MATCH)
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{
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// Radeon/Gallium don't support advance attribute. Fallback to random value
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// Note: Intel gives an EGL_BAD_MATCH. I don't know why but let's by stubborn and retry.
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fprintf(stderr, "EGL: warning your driver doesn't support advance openGL context attributes\n");
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m_eglContext = eglCreateContext(m_eglDisplay, eglConfig, EGL_NO_CONTEXT, NullContextAttribs);
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status = eglGetError();
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}
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if (m_eglContext == EGL_NO_CONTEXT)
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{
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fprintf(stderr, "EGL: Failed to create the context\n");
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fprintf(stderr, "EGL STATUS: %x\n", status);
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throw GSDXRecoverableError();
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}
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if (!eglMakeCurrent(m_eglDisplay, m_eglSurface, m_eglSurface, m_eglContext))
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{
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throw GSDXRecoverableError();
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}
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}
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void GSWndEGL::AttachContext()
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{
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if (!IsContextAttached())
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{
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// The setting of the API is local to a thread. This function
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// can be called from 2 threads.
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BindAPI();
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//fprintf(stderr, "Attach the context\n");
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eglMakeCurrent(m_eglDisplay, m_eglSurface, m_eglSurface, m_eglContext);
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m_ctx_attached = true;
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}
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}
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void GSWndEGL::DetachContext()
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{
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if (IsContextAttached())
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{
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//fprintf(stderr, "Detach the context\n");
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eglMakeCurrent(m_eglDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
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m_ctx_attached = false;
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}
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}
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void GSWndEGL::PopulateWndGlFunction()
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{
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}
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void GSWndEGL::BindAPI()
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{
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eglBindAPI(EGL_OPENGL_API);
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EGLenum api = eglQueryAPI();
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if (api != EGL_OPENGL_API)
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{
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fprintf(stderr, "EGL: Failed to bind the OpenGL API got 0x%x instead\n", api);
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throw GSDXRecoverableError();
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}
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}
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bool GSWndEGL::Attach(void* handle, bool managed)
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{
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m_managed = managed;
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m_native_window = AttachNativeWindow(handle);
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OpenEGLDisplay();
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FullContextInit();
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return true;
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}
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void GSWndEGL::Detach()
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{
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// Actually the destructor is not called when there is only a GSclose/GSshutdown
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// The window still need to be closed
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DetachContext();
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eglDestroyContext(m_eglDisplay, m_eglContext);
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m_eglContext = nullptr;
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eglDestroySurface(m_eglDisplay, m_eglSurface);
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m_eglSurface = nullptr;
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CloseEGLDisplay();
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DestroyNativeResources();
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}
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bool GSWndEGL::Create(const std::string& title, int w, int h)
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{
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if (w <= 0 || h <= 0)
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{
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w = theApp.GetConfigI("ModeWidth");
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h = theApp.GetConfigI("ModeHeight");
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}
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m_managed = true;
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OpenEGLDisplay();
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m_native_window = CreateNativeWindow(w, h);
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FullContextInit();
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return true;
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}
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void* GSWndEGL::GetProcAddress(const char* name, bool opt)
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{
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void* ptr = (void*)eglGetProcAddress(name);
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if (ptr == nullptr)
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{
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if (theApp.GetConfigB("debug_opengl"))
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fprintf(stderr, "Failed to find %s\n", name);
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if (!opt)
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throw GSDXRecoverableError();
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}
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return ptr;
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}
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GSVector4i GSWndEGL::GetClientRect()
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{
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EGLint h = 0;
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EGLint w = 0;
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eglQuerySurface(m_eglDisplay, m_eglSurface, EGL_HEIGHT, &h);
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eglQuerySurface(m_eglDisplay, m_eglSurface, EGL_WIDTH, &w);
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return GSVector4i(0, 0, w, h);
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}
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void GSWndEGL::SetSwapInterval()
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{
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// 0 -> disable vsync
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// n -> wait n frame
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eglSwapInterval(m_eglDisplay, m_vsync);
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}
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void GSWndEGL::Flip()
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{
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if (m_vsync_change_requested.exchange(false))
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SetSwapInterval();
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eglSwapBuffers(m_eglDisplay, m_eglSurface);
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}
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void GSWndEGL::CloseEGLDisplay()
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{
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eglReleaseThread();
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eglTerminate(m_eglDisplay);
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}
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void GSWndEGL::OpenEGLDisplay()
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{
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// We only need a native display when we manage the window ourself.
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// By default, EGL will create its own native display. This way the driver knows
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// that display will be thread safe and so it can enable multithread optimization.
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void* native_display = (m_managed) ? CreateNativeDisplay() : nullptr;
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// Create an EGL display from the native display
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m_eglDisplay = eglGetPlatformDisplay(m_platform, native_display, nullptr);
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if (m_eglDisplay == EGL_NO_DISPLAY)
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{
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fprintf(stderr, "EGL: Failed to open a display! (0x%x)\n", eglGetError());
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throw GSDXRecoverableError();
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}
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if (!eglInitialize(m_eglDisplay, nullptr, nullptr))
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{
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fprintf(stderr, "EGL: Failed to initialize the display! (0x%x)\n", eglGetError());
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throw GSDXRecoverableError();
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}
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}
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//////////////////////////////////////////////////////////////////////
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// X11 platform
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//////////////////////////////////////////////////////////////////////
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#if GS_EGL_X11
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GSWndEGL_X11::GSWndEGL_X11()
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: GSWndEGL(EGL_PLATFORM_X11_KHR), m_NativeDisplay(nullptr), m_NativeWindow(0)
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{
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}
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void* GSWndEGL_X11::CreateNativeDisplay()
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{
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if (m_NativeDisplay == nullptr)
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m_NativeDisplay = XOpenDisplay(nullptr);
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return (void*)m_NativeDisplay;
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}
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void* GSWndEGL_X11::CreateNativeWindow(int w, int h)
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{
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const int depth = 0, x = 0, y = 0, border_width = 1;
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#if 0
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// Old X code in case future code will still require it
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m_NativeWindow = XCreateSimpleWindow(m_NativeDisplay, DefaultRootWindow(m_NativeDisplay), 0, 0, w, h, 0, 0, 0);
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XMapWindow (m_NativeDisplay, m_NativeWindow);
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#endif
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if (m_NativeDisplay == nullptr)
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{
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fprintf(stderr, "EGL X11: display wasn't created before the window\n");
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throw GSDXRecoverableError();
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}
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xcb_connection_t* c = XGetXCBConnection(m_NativeDisplay);
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const xcb_setup_t* setup = xcb_get_setup(c);
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xcb_screen_t* screen = (xcb_setup_roots_iterator(setup)).data;
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m_NativeWindow = xcb_generate_id(c);
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if (m_NativeWindow == 0)
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{
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fprintf(stderr, "EGL X11: failed to create the native window\n");
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throw GSDXRecoverableError();
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}
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xcb_create_window(c, depth, m_NativeWindow, screen->root, x, y, w, h,
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border_width, InputOutput, screen->root_visual, 0, nullptr);
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xcb_map_window(c, m_NativeWindow);
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xcb_flush(c);
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return (void*)&m_NativeWindow;
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}
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void* GSWndEGL_X11::AttachNativeWindow(void* handle)
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{
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m_NativeWindow = *(Window*)handle;
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return handle;
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}
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void GSWndEGL_X11::DestroyNativeResources()
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{
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if (m_NativeDisplay)
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{
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XCloseDisplay(m_NativeDisplay);
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m_NativeDisplay = nullptr;
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}
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}
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bool GSWndEGL_X11::SetWindowText(const char* title)
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{
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if (!m_managed)
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return true;
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xcb_connection_t* c = XGetXCBConnection(m_NativeDisplay);
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xcb_change_property(c, XCB_PROP_MODE_REPLACE, m_NativeWindow,
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XCB_ATOM_WM_NAME, XCB_ATOM_STRING, 8,
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strlen(title), title);
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return true;
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}
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#endif
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//////////////////////////////////////////////////////////////////////
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// Wayland platform (just a place holder)
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//////////////////////////////////////////////////////////////////////
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#if GS_EGL_WL
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GSWndEGL_WL::GSWndEGL_WL()
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: GSWndEGL(EGL_PLATFORM_WAYLAND_KHR), m_NativeDisplay(nullptr), m_NativeWindow(nullptr)
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{
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}
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void* GSWndEGL_WL::CreateNativeDisplay()
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{
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if (m_NativeDisplay == nullptr)
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m_NativeDisplay = wl_display_connect(NULL);
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return (void*)m_NativeDisplay;
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}
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void* GSWndEGL_WL::CreateNativeWindow(int w, int h)
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{
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return nullptr;
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}
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void* GSWndEGL_WL::AttachNativeWindow(void* handle)
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{
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m_NativeWindow = (wl_egl_window*)handle;
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return handle;
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}
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void GSWndEGL_WL::DestroyNativeResources()
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{
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if (m_NativeDisplay)
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{
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wl_display_disconnect(m_NativeDisplay);
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m_NativeDisplay = nullptr;
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}
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}
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bool GSWndEGL_WL::SetWindowText(const char* title)
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{
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return true;
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}
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#endif
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#endif
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