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Viewing changes to playground/demo-inprocess-surface-client/example_egl_helper.cpp

  • Committer: Package Import Robot
  • Author(s): Ubuntu daily release
  • Date: 2014-10-10 14:01:26 UTC
  • mto: This revision was merged to the branch mainline in revision 84.
  • Revision ID: package-import@ubuntu.com-20141010140126-n1czko8na1kuz4ll
Tags: upstream-0.8.0+14.10.20141010
Import upstream version 0.8.0+14.10.20141010

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playground/demo-inprocess-surface-client/example_egl_helper.cpp
 
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/*
 
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 * Copyright © 2013 Canonical Ltd.
 
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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 version 3 as
 
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 * published by the Free Software Foundation.
 
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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, see <http://www.gnu.org/licenses/>.
 
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 *
 
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 * Authored by: Robert Carr <robert.carr@canonical.com>
 
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 */
 
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#include "example_egl_helper.h"
 
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#include <assert.h>
 
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namespace me = mir::examples;
 
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me::EGLHelper::EGLHelper(EGLNativeDisplayType native_display, EGLNativeWindowType native_window)
 
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{
 
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    display = eglGetDisplay(native_display);
 
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    assert(display != EGL_NO_DISPLAY);
 
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    int major, minor, rc;
 
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    rc = eglInitialize(display, &major, &minor);
 
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    assert(rc == EGL_TRUE);
 
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    assert(major == 1);
 
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    assert(minor == 4);
 
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    EGLint attribs[] = {
 
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        EGL_SURFACE_TYPE, EGL_WINDOW_BIT,
 
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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_ALPHA_SIZE, 8,
 
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        EGL_RENDERABLE_TYPE, EGL_OPENGL_ES2_BIT,
 
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        EGL_NONE };
 
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    EGLConfig egl_config;
 
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    int n;
 
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    rc = eglChooseConfig(display, attribs, &egl_config, 1, &n);
 
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    assert(rc == EGL_TRUE);
 
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    assert(n == 1);
 
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    (void)rc;
 
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    surface = eglCreateWindowSurface(display, egl_config, native_window, nullptr);
 
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    assert(surface != EGL_NO_SURFACE);
 
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    EGLint context_attribs[] = { EGL_CONTEXT_CLIENT_VERSION, 2, EGL_NONE };
 
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    context = eglCreateContext(display, egl_config, EGL_NO_CONTEXT, context_attribs);
 
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    assert(surface != EGL_NO_CONTEXT);
 
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}
 
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me::EGLHelper::~EGLHelper()
 
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{
 
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    eglDestroySurface(display, surface);
 
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    eglDestroyContext(display, context);
 
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    eglTerminate(display);
 
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}
 
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EGLDisplay me::EGLHelper::the_display() const
 
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{
 
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    return display;
 
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}
 
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EGLContext me::EGLHelper::the_context() const
 
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{
 
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    return context;
 
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}
 
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EGLSurface me::EGLHelper::the_surface() const
 
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{
 
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    return surface;
 
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}