pcsx2/plugins/GSdx/GSWndEGL.cpp

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/*
* 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 "GSWndEGL.h"
2016-05-01 09:43:18 +00:00
#if defined(__unix__) && defined(EGL_SUPPORTED)
// static method
int GSWndEGL::SelectPlatform()
{
// Check the supported extension
const char *client_extensions = eglQueryString(EGL_NO_DISPLAY, EGL_EXTENSIONS);
if (!client_extensions) {
fprintf(stderr, "EGL: Client extension not supported\n");
return 0;
}
fprintf(stdout, "EGL: Supported extensions: %s\n", client_extensions);
// Check platform extensions are supported (Note: there are core in 1.5)
if (!strstr(client_extensions, "EGL_EXT_platform_base")) {
fprintf(stderr, "EGL: Dynamic platform selection isn't supported\n");
return 0;
}
// Finally we can select the platform
#if GS_EGL_X11
if (strstr(client_extensions, "EGL_EXT_platform_x11")) {
fprintf(stdout, "EGL: select X11 platform\n");
return EGL_PLATFORM_X11_KHR;
}
#endif
#if GS_EGL_WL
if (strstr(client_extensions, "EGL_EXT_platform_wayland")) {
fprintf(stdout, "EGL: select Wayland platform\n");
return EGL_PLATFORM_WAYLAND_KHR;
}
#endif
fprintf(stderr, "EGL: no compatible platform found\n");
return 0;
}
GSWndEGL::GSWndEGL(int platform)
: m_native_window(nullptr), m_platform(platform)
{
}
void GSWndEGL::CreateContext(int major, int minor)
{
EGLConfig eglConfig;
EGLint numConfigs = 0;
EGLint contextAttribs[] =
{
EGL_CONTEXT_MAJOR_VERSION_KHR, major,
EGL_CONTEXT_MINOR_VERSION_KHR, minor,
#ifdef ENABLE_OGL_DEBUG
EGL_CONTEXT_FLAGS_KHR, EGL_CONTEXT_OPENGL_DEBUG_BIT_KHR,
#else
// Open Source isn't happy with an unsupported flags...
//EGL_CONTEXT_FLAGS_KHR, GL_CONTEXT_FLAG_NO_ERROR_BIT_KHR,
#endif
EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR, EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR,
EGL_NONE
};
EGLint NullContextAttribs[] = { EGL_NONE };
EGLint attrList[] = {
EGL_RED_SIZE, 8,
EGL_GREEN_SIZE, 8,
EGL_BLUE_SIZE, 8,
EGL_DEPTH_SIZE, 0,
EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT,
EGL_NONE
};
BindAPI();
eglChooseConfig(m_eglDisplay, attrList, &eglConfig, 1, &numConfigs);
if ( numConfigs == 0 )
{
fprintf(stderr,"EGL: Failed to get a frame buffer config! (0x%x)\n", eglGetError() );
throw GSDXRecoverableError();
}
m_eglSurface = eglCreatePlatformWindowSurface(m_eglDisplay, eglConfig, m_native_window, nullptr);
if ( m_eglSurface == EGL_NO_SURFACE )
{
fprintf(stderr,"EGL: Failed to get a window surface\n");
throw GSDXRecoverableError();
}
m_eglContext = eglCreateContext(m_eglDisplay, eglConfig, EGL_NO_CONTEXT, contextAttribs);
EGLint status = eglGetError();
if (status == EGL_BAD_ATTRIBUTE || status == EGL_BAD_MATCH) {
// Radeon/Gallium don't support advance attribute. Fallback to random value
// Note: Intel gives an EGL_BAD_MATCH. I don't know why but let's by stubborn and retry.
fprintf(stderr, "EGL: warning your driver doesn't support advance openGL context attributes\n");
m_eglContext = eglCreateContext(m_eglDisplay, eglConfig, EGL_NO_CONTEXT, NullContextAttribs);
status = eglGetError();
}
if ( m_eglContext == EGL_NO_CONTEXT )
{
fprintf(stderr,"EGL: Failed to create the context\n");
fprintf(stderr,"EGL STATUS: %x\n", status);
throw GSDXRecoverableError();
}
if ( !eglMakeCurrent(m_eglDisplay, m_eglSurface, m_eglSurface, m_eglContext) )
{
throw GSDXRecoverableError();
}
}
void GSWndEGL::AttachContext()
{
if (!IsContextAttached()) {
// The setting of the API is local to a thread. This function
// can be called from 2 threads.
BindAPI();
//fprintf(stderr, "Attach the context\n");
eglMakeCurrent(m_eglDisplay, m_eglSurface, m_eglSurface, m_eglContext);
m_ctx_attached = true;
}
}
void GSWndEGL::DetachContext()
{
if (IsContextAttached()) {
//fprintf(stderr, "Detach the context\n");
eglMakeCurrent(m_eglDisplay, EGL_NO_SURFACE, EGL_NO_SURFACE, EGL_NO_CONTEXT);
m_ctx_attached = false;
}
}
void GSWndEGL::BindAPI()
{
eglBindAPI(EGL_OPENGL_API);
EGLenum api = eglQueryAPI();
if (api != EGL_OPENGL_API) {
fprintf(stderr,"EGL: Failed to bind the OpenGL API got 0x%x instead\n", api);
throw GSDXRecoverableError();
}
}
bool GSWndEGL::Attach(void* handle, bool managed)
{
m_managed = managed;
m_native_window = AttachNativeWindow(handle);
OpenEGLDisplay();
CreateContext(3, 3);
AttachContext();
PopulateGlFunction();
return true;
}
void GSWndEGL::Detach()
{
// Actually the destructor is not called when there is only a GSclose/GSshutdown
// The window still need to be closed
DetachContext();
eglDestroyContext(m_eglDisplay, m_eglContext);
m_eglContext = nullptr;
eglDestroySurface(m_eglDisplay, m_eglSurface);
m_eglSurface = nullptr;
CloseEGLDisplay();
DestroyNativeResources();
}
bool GSWndEGL::Create(const string& title, int w, int h)
{
if(w <= 0 || h <= 0) {
w = theApp.GetConfigI("ModeWidth");
h = theApp.GetConfigI("ModeHeight");
}
m_managed = true;
OpenEGLDisplay();
m_native_window = CreateNativeWindow(w, h);
CreateContext(3, 3);
AttachContext();
PopulateGlFunction();
return true;
}
void* GSWndEGL::GetProcAddress(const char* name, bool opt)
{
void* ptr = (void*)eglGetProcAddress(name);
if (ptr == nullptr) {
fprintf(stderr, "Failed to find %s\n", name);
if (!opt)
throw GSDXRecoverableError();
}
return ptr;
}
GSVector4i GSWndEGL::GetClientRect()
{
EGLint h = 0;
EGLint w = 0;
eglQuerySurface(m_eglDisplay, m_eglSurface, EGL_HEIGHT, &h);
eglQuerySurface(m_eglDisplay, m_eglSurface, EGL_WIDTH, &w);
return GSVector4i(0, 0, w, h);
}
void GSWndEGL::SetVSync(bool enable)
{
// 0 -> disable vsync
// n -> wait n frame
eglSwapInterval(m_eglDisplay, enable);
}
void GSWndEGL::Flip()
{
eglSwapBuffers(m_eglDisplay, m_eglSurface);
}
void GSWndEGL::CloseEGLDisplay()
{
eglReleaseThread();
eglTerminate(m_eglDisplay);
}
void GSWndEGL::OpenEGLDisplay()
{
// We only need a native display when we manage the window ourself.
// By default, EGL will create its own native display. This way the driver knows
// that display will be thread safe and so it can enable multithread optimization.
void *native_display = (m_managed) ? CreateNativeDisplay() : nullptr;
// Create an EGL display from the native display
m_eglDisplay = eglGetPlatformDisplay(m_platform, native_display, nullptr);
if (m_eglDisplay == EGL_NO_DISPLAY) {
fprintf(stderr,"EGL: Failed to open a display! (0x%x)\n", eglGetError() );
throw GSDXRecoverableError();
}
if (!eglInitialize(m_eglDisplay, nullptr, nullptr)) {
fprintf(stderr,"EGL: Failed to initialize the display! (0x%x)\n", eglGetError() );
throw GSDXRecoverableError();
}
}
//////////////////////////////////////////////////////////////////////
// X11 platform
//////////////////////////////////////////////////////////////////////
#if GS_EGL_X11
GSWndEGL_X11::GSWndEGL_X11()
: GSWndEGL(EGL_PLATFORM_X11_KHR), m_NativeDisplay(nullptr), m_NativeWindow(0)
{
}
void *GSWndEGL_X11::CreateNativeDisplay()
{
if (m_NativeDisplay == nullptr)
m_NativeDisplay = XOpenDisplay(nullptr);
return (void*)m_NativeDisplay;
}
void *GSWndEGL_X11::CreateNativeWindow(int w, int h)
{
const int depth = 0, x = 0, y = 0, border_width = 1;
#if 0
// Old X code in case future code will still require it
m_NativeWindow = XCreateSimpleWindow(m_NativeDisplay, DefaultRootWindow(m_NativeDisplay), 0, 0, w, h, 0, 0, 0);
XMapWindow (m_NativeDisplay, m_NativeWindow);
#endif
if (m_NativeDisplay == nullptr) {
fprintf(stderr, "EGL X11: display wasn't created before the window\n");
throw GSDXRecoverableError();
}
xcb_connection_t *c = XGetXCBConnection(m_NativeDisplay);
const xcb_setup_t *setup = xcb_get_setup(c);
xcb_screen_t *screen = (xcb_setup_roots_iterator (setup)).data;
m_NativeWindow = xcb_generate_id(c);
if (m_NativeWindow == 0) {
fprintf(stderr, "EGL X11: failed to create the native window\n");
throw GSDXRecoverableError();
}
xcb_create_window (c, depth, m_NativeWindow, screen->root, x, y, w, h,
border_width, InputOutput, screen->root_visual, 0, nullptr);
xcb_map_window (c, m_NativeWindow);
xcb_flush(c);
return (void*)&m_NativeWindow;
}
void *GSWndEGL_X11::AttachNativeWindow(void *handle)
{
m_NativeWindow = *(Window*)handle;
return handle;
}
void GSWndEGL_X11::DestroyNativeResources()
{
if (m_NativeDisplay) {
XCloseDisplay(m_NativeDisplay);
m_NativeDisplay = nullptr;
}
}
bool GSWndEGL_X11::SetWindowText(const char* title)
{
if (!m_managed) return true;
xcb_connection_t *c = XGetXCBConnection(m_NativeDisplay);
xcb_change_property(c, XCB_PROP_MODE_REPLACE, m_NativeWindow,
XCB_ATOM_WM_NAME, XCB_ATOM_STRING, 8,
strlen (title), title);
return true;
}
#endif
//////////////////////////////////////////////////////////////////////
// Wayland platform (just a place holder)
//////////////////////////////////////////////////////////////////////
#if GS_EGL_WL
GSWndEGL_WL::GSWndEGL_WL()
: GSWndEGL(EGL_PLATFORM_WAYLAND_KHR), m_NativeDisplay(nullptr), m_NativeWindow(nullptr)
{
}
void *GSWndEGL_WL::CreateNativeDisplay()
{
if (m_NativeDisplay == nullptr)
m_NativeDisplay = wl_display_connect(NULL);
return (void*)m_NativeDisplay;
}
void *GSWndEGL_WL::CreateNativeWindow(int w, int h)
{
return nullptr;
}
void *GSWndEGL_WL::AttachNativeWindow(void *handle)
{
m_NativeWindow = (wl_egl_window*)handle;
return handle;
}
void GSWndEGL_WL::DestroyNativeResources()
{
if (m_NativeDisplay) {
wl_display_disconnect(m_NativeDisplay);
m_NativeDisplay = nullptr;
}
}
bool GSWndEGL_WL::SetWindowText(const char* title)
{
return true;
}
#endif
#endif