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

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// 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 "../GLInterface.h"
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#include "EGL.h"
// Show the current FPS
void cInterfaceEGL::UpdateFPSDisplay(const char *text)
{
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XStoreName(GLWin.dpy, GLWin.win, text);
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}
void cInterfaceEGL::SwapInterval(int Interval)
{
eglSwapInterval(GLWin.egl_dpy, Interval);
}
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void cInterfaceEGL::Swap()
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{
eglSwapBuffers(GLWin.egl_dpy, GLWin.egl_surf);
}
// Create rendering window.
// Call browser: Core.cpp:EmuThread() > main.cpp:Video_Initialize()
bool cInterfaceEGL::Create(void *&window_handle)
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{
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;
EGLint egl_major, egl_minor;
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GLWin.dpy = XOpenDisplay(NULL);
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if (!GLWin.dpy) {
ERROR_LOG(VIDEO, "Error: couldn't open display\n");
return false;
}
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GLWin.egl_dpy = eglGetDisplay(GLWin.dpy);
if (!GLWin.egl_dpy) {
ERROR_LOG(VIDEO, "Error: eglGetDisplay() failed\n");
return false;
}
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if (!eglInitialize(GLWin.egl_dpy, &egl_major, &egl_minor)) {
ERROR_LOG(VIDEO, "Error: eglInitialize() failed\n");
return false;
}
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INFO_LOG(VIDEO, "EGL_VERSION = %s\n", eglQueryString(GLWin.egl_dpy, EGL_VERSION));
INFO_LOG(VIDEO, "EGL_VENDOR = %s\n", eglQueryString(GLWin.egl_dpy, EGL_VENDOR));
INFO_LOG(VIDEO, "EGL_EXTENSIONS = %s\n", eglQueryString(GLWin.egl_dpy, EGL_EXTENSIONS));
INFO_LOG(VIDEO, "EGL_CLIENT_APIS = %s\n", eglQueryString(GLWin.egl_dpy, EGL_CLIENT_APIS));
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// attributes for a visual in RGBA format with at least
// 8 bits per color and a 24 bit depth buffer
int attribs[] = {
EGL_RED_SIZE, 8,
EGL_GREEN_SIZE, 8,
EGL_BLUE_SIZE, 8,
EGL_DEPTH_SIZE, 24,
#ifdef USE_GLES
EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
#else
EGL_RENDERABLE_TYPE, EGL_OPENGL_BIT,
#endif
EGL_NONE };
static const EGLint ctx_attribs[] = {
#ifdef USE_GLES
EGL_CONTEXT_CLIENT_VERSION, 2,
#endif
EGL_NONE
};
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GLWin.evdpy = XOpenDisplay(NULL);
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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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XVisualInfo visTemplate;
int num_visuals;
EGLConfig config;
EGLint num_configs;
EGLint vid;
if (!eglChooseConfig( GLWin.egl_dpy, attribs, &config, 1, &num_configs)) {
ERROR_LOG(VIDEO, "Error: couldn't get an EGL visual config\n");
return false;
}
if (!eglGetConfigAttrib(GLWin.egl_dpy, config, EGL_NATIVE_VISUAL_ID, &vid)) {
ERROR_LOG(VIDEO, "Error: eglGetConfigAttrib() failed\n");
return false;
}
/* The X window visual must match the EGL config */
visTemplate.visualid = vid;
GLWin.vi = XGetVisualInfo(GLWin.dpy, VisualIDMask, &visTemplate, &num_visuals);
if (!GLWin.vi) {
ERROR_LOG(VIDEO, "Error: couldn't get X visual\n");
return false;
}
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GLWin.x = _tx;
GLWin.y = _ty;
GLWin.width = _twidth;
GLWin.height = _theight;
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XWindow.CreateXWindow();
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#ifdef USE_GLES
eglBindAPI(EGL_OPENGL_ES_API);
#else
eglBindAPI(EGL_OPENGL_API);
#endif
GLWin.egl_ctx = eglCreateContext(GLWin.egl_dpy, config, EGL_NO_CONTEXT, ctx_attribs );
if (!GLWin.egl_ctx) {
ERROR_LOG(VIDEO, "Error: eglCreateContext failed\n");
return false;
}
GLWin.egl_surf = eglCreateWindowSurface(GLWin.egl_dpy, config, GLWin.win, NULL);
if (!GLWin.egl_surf) {
ERROR_LOG(VIDEO, "Error: eglCreateWindowSurface failed\n");
return false;
}
if (!eglMakeCurrent(GLWin.egl_dpy, GLWin.egl_surf, GLWin.egl_surf, GLWin.egl_ctx)) {
ERROR_LOG(VIDEO, "Error: eglMakeCurrent() failed\n");
return false;
}
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INFO_LOG(VIDEO, "GL_VENDOR: %s\n", glGetString(GL_VENDOR));
INFO_LOG(VIDEO, "GL_RENDERER: %s\n", glGetString(GL_RENDERER));
INFO_LOG(VIDEO, "GL_VERSION: %s\n", glGetString(GL_VERSION));
INFO_LOG(VIDEO, "GL_EXTENSIONS: %s\n", glGetString(GL_EXTENSIONS));
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window_handle = (void *)GLWin.win;
return true;
}
bool cInterfaceEGL::MakeCurrent()
{
return eglMakeCurrent(GLWin.egl_dpy, GLWin.egl_surf, GLWin.egl_surf, GLWin.egl_ctx);
}
// Close backend
void cInterfaceEGL::Shutdown()
{
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XWindow.DestroyXWindow();
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if (GLWin.egl_ctx && !eglMakeCurrent(GLWin.egl_dpy, GLWin.egl_surf, GLWin.egl_surf, GLWin.egl_ctx))
NOTICE_LOG(VIDEO, "Could not release drawing context.");
if (GLWin.egl_ctx)
{
eglDestroyContext(GLWin.egl_dpy, GLWin.egl_ctx);
eglDestroySurface(GLWin.egl_dpy, GLWin.egl_surf);
eglTerminate(GLWin.egl_dpy);
GLWin.egl_ctx = NULL;
}
}