mirror of
https://github.com/bulletphysics/bullet3
synced 2024-12-14 13:50:04 +00:00
265 lines
8.7 KiB
C++
265 lines
8.7 KiB
C++
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// portions of this file are copied from GLFW egl_context.c/egl_context.h
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//========================================================================
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// GLFW 3.3 EGL - www.glfw.org
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//------------------------------------------------------------------------
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// Copyright (c) 2002-2006 Marcus Geelnard
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// Copyright (c) 2006-2016 Camilla Löwy <elmindreda@glfw.org>
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//
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// This software is provided 'as-is', without any express or implied
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// warranty. In no event will the authors be held liable for any damages
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// arising from the use of this software.
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//
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// Permission is granted to anyone to use this software for any purpose,
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// including commercial applications, and to alter it and redistribute it
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// freely, subject to the following restrictions:
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//
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// 1. The origin of this software must not be misrepresented; you must not
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// claim that you wrote the original software. If you use this software
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// in a product, an acknowledgment in the product documentation would
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// be appreciated but is not required.
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//
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// 2. Altered source versions must be plainly marked as such, and must not
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// be misrepresented as being the original software.
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//
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// 3. This notice may not be removed or altered from any source
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// distribution.
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//
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//========================================================================
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#ifdef BT_USE_EGL
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#include <pthread.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <unistd.h>
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#include "OpenGLInclude.h"
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#include "third_party/GL/EGL/egl.h"
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#include "third_party/GL/gl/include/EGL/eglext.h"
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#include "third_party/GL/gl/include/GL/gl.h"
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#include "EGLOpenGLWindow.h"
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struct EGLInternalData2 {
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bool m_isInitialized;
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int m_windowWidth;
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int m_windowHeight;
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b3KeyboardCallback m_keyboardCallback;
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b3WheelCallback m_wheelCallback;
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b3ResizeCallback m_resizeCallback;
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b3MouseButtonCallback m_mouseButtonCallback;
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b3MouseMoveCallback m_mouseMoveCallback;
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EGLBoolean success;
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EGLint num_configs;
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EGLConfig egl_config;
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EGLSurface egl_surface;
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EGLContext egl_context;
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EGLDisplay egl_display;
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EGLInternalData2()
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: m_isInitialized(false),
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m_windowWidth(0),
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m_windowHeight(0),
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m_keyboardCallback(0),
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m_wheelCallback(0),
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m_resizeCallback(0),
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m_mouseButtonCallback(0),
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m_mouseMoveCallback(0) {}
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};
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EGLOpenGLWindow::EGLOpenGLWindow() { m_data = new EGLInternalData2(); }
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EGLOpenGLWindow::~EGLOpenGLWindow() { delete m_data; }
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void EGLOpenGLWindow::createWindow(const b3gWindowConstructionInfo& ci) {
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m_data->m_windowWidth = ci.m_width;
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m_data->m_windowHeight = ci.m_height;
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EGLint egl_config_attribs[] = {EGL_RED_SIZE,
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8,
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EGL_GREEN_SIZE,
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8,
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EGL_BLUE_SIZE,
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8,
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EGL_DEPTH_SIZE,
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8,
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EGL_SURFACE_TYPE,
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EGL_PBUFFER_BIT,
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EGL_RENDERABLE_TYPE,
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EGL_OPENGL_BIT,
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EGL_NONE};
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EGLint egl_pbuffer_attribs[] = {
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EGL_WIDTH, m_data->m_windowWidth, EGL_HEIGHT, m_data->m_windowHeight,
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EGL_NONE,
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};
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// Initialize EGL display
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PFNEGLQUERYDEVICESEXTPROC eglQueryDevicesEXT =
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(PFNEGLQUERYDEVICESEXTPROC)eglGetProcAddress("eglQueryDevicesEXT");
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if (eglQueryDevicesEXT == nullptr) m_data->egl_display = EGL_NO_DISPLAY;
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PFNEGLGETPLATFORMDISPLAYEXTPROC eglGetPlatformDisplayEXT =
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(PFNEGLGETPLATFORMDISPLAYEXTPROC)eglGetProcAddress(
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"eglGetPlatformDisplayEXT");
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if (eglGetPlatformDisplayEXT == nullptr) m_data->egl_display = EGL_NO_DISPLAY;
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const int max_devices = 32;
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EGLDeviceEXT egl_devices[max_devices];
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EGLint num_devices = 0;
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EGLint egl_error = eglGetError();
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if (!eglQueryDevicesEXT(max_devices, egl_devices, &num_devices) ||
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egl_error != EGL_SUCCESS) {
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printf("eglQueryDevicesEXT Failed.\n");
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m_data->egl_display = EGL_NO_DISPLAY;
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}
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for (EGLint i = 0; i < num_devices; ++i) {
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EGLDisplay display = eglGetPlatformDisplayEXT(EGL_PLATFORM_DEVICE_EXT,
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egl_devices[i], nullptr);
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if (eglGetError() == EGL_SUCCESS && display != EGL_NO_DISPLAY) {
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int major, minor;
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EGLBoolean initialized = eglInitialize(display, &major, &minor);
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if (eglGetError() == EGL_SUCCESS && initialized == EGL_TRUE) {
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m_data->egl_display = display;
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}
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}
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}
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m_data->success = eglBindAPI(EGL_OPENGL_API);
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if (!m_data->success) {
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// TODO: Properly handle this error (requires change to default window
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// API to change return on all window types to bool).
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fprintf(stderr, "Failed to bind OpenGL API.\n");
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exit(EXIT_FAILURE);
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}
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m_data->success =
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eglChooseConfig(m_data->egl_display, egl_config_attribs,
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&m_data->egl_config, 1, &m_data->num_configs);
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if (!m_data->success) {
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// TODO: Properly handle this error (requires change to default window
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// API to change return on all window types to bool).
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fprintf(stderr, "Failed to bind OpenGL API.\n");
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exit(EXIT_FAILURE);
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}
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m_data->egl_surface = eglCreatePbufferSurface(
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m_data->egl_display, m_data->egl_config, egl_pbuffer_attribs);
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m_data->egl_context = eglCreateContext(
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m_data->egl_display, m_data->egl_config, EGL_NO_CONTEXT, nullptr);
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eglMakeCurrent(m_data->egl_display, m_data->egl_surface, m_data->egl_surface,
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m_data->egl_context);
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printf("Finish creating EGL OpenGL window.\n");
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const GLubyte* ven = glGetString(GL_VENDOR);
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printf("GL_VENDOR=%s\n", ven);
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const GLubyte* ren = glGetString(GL_RENDERER);
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printf("GL_RENDERER=%s\n", ren);
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const GLubyte* ver = glGetString(GL_VERSION);
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printf("GL_VERSION=%s\n", ver);
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const GLubyte* sl = glGetString(GL_SHADING_LANGUAGE_VERSION);
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printf("GL_SHADING_LANGUAGE_VERSION=%s\n", sl);
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int i = pthread_getconcurrency();
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printf("pthread_getconcurrency()=%d\n", i);
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}
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void EGLOpenGLWindow::closeWindow() {
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eglMakeCurrent(m_data->egl_display, EGL_NO_SURFACE, EGL_NO_SURFACE,
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EGL_NO_CONTEXT);
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eglDestroySurface(m_data->egl_display, m_data->egl_surface);
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eglDestroyContext(m_data->egl_display, m_data->egl_context);
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printf("Destroy EGL OpenGL window.\n");
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}
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void EGLOpenGLWindow::runMainLoop() {}
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float EGLOpenGLWindow::getTimeInSeconds() { return 0.; }
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bool EGLOpenGLWindow::requestedExit() const { return false; }
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void EGLOpenGLWindow::setRequestExit() {}
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void EGLOpenGLWindow::startRendering() {
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// printf("EGL window start rendering.\n");
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glViewport(0, 0, m_data->m_windowWidth, m_data->m_windowHeight);
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glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
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glEnable(GL_DEPTH_TEST);
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}
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void EGLOpenGLWindow::endRendering() {
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// printf("EGL window end rendering.\n");
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eglSwapBuffers(m_data->egl_display, m_data->egl_surface);
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}
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bool EGLOpenGLWindow::isModifierKeyPressed(int key) { return false; }
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void EGLOpenGLWindow::setMouseMoveCallback(b3MouseMoveCallback mouseCallback) {
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m_data->m_mouseMoveCallback = mouseCallback;
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}
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b3MouseMoveCallback EGLOpenGLWindow::getMouseMoveCallback() {
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return m_data->m_mouseMoveCallback;
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}
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void EGLOpenGLWindow::setMouseButtonCallback(
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b3MouseButtonCallback mouseCallback) {
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m_data->m_mouseButtonCallback = mouseCallback;
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}
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b3MouseButtonCallback EGLOpenGLWindow::getMouseButtonCallback() {
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return m_data->m_mouseButtonCallback;
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}
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void EGLOpenGLWindow::setResizeCallback(b3ResizeCallback resizeCallback) {
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m_data->m_resizeCallback = resizeCallback;
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}
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b3ResizeCallback EGLOpenGLWindow::getResizeCallback() {
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return m_data->m_resizeCallback;
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}
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void EGLOpenGLWindow::setWheelCallback(b3WheelCallback wheelCallback) {
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m_data->m_wheelCallback = wheelCallback;
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}
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b3WheelCallback EGLOpenGLWindow::getWheelCallback() {
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return m_data->m_wheelCallback;
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}
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void EGLOpenGLWindow::setKeyboardCallback(b3KeyboardCallback keyboardCallback) {
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m_data->m_keyboardCallback = keyboardCallback;
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}
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b3KeyboardCallback EGLOpenGLWindow::getKeyboardCallback() {
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return m_data->m_keyboardCallback;
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}
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void EGLOpenGLWindow::setRenderCallback(b3RenderCallback renderCallback) {}
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void EGLOpenGLWindow::setWindowTitle(const char* title) {}
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float EGLOpenGLWindow::getRetinaScale() const { return 1.f; }
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void EGLOpenGLWindow::setAllowRetina(bool allow) {}
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int EGLOpenGLWindow::getWidth() const { return m_data->m_windowWidth; }
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int EGLOpenGLWindow::getHeight() const { return m_data->m_windowHeight; }
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int EGLOpenGLWindow::fileOpenDialog(char* fileName, int maxFileNameLength) {
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return 0;
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}
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#endif // BT_USE_EGL
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