egl_object.cpp revision 541de498ec7356c5e4af92500cf2fb8fc707fd50
1/* 2 ** Copyright 2007, The Android Open Source Project 3 ** 4 ** Licensed under the Apache License, Version 2.0 (the "License"); 5 ** you may not use this file except in compliance with the License. 6 ** You may obtain a copy of the License at 7 ** 8 ** http://www.apache.org/licenses/LICENSE-2.0 9 ** 10 ** Unless required by applicable law or agreed to in writing, software 11 ** distributed under the License is distributed on an "AS IS" BASIS, 12 ** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 ** See the License for the specific language governing permissions and 14 ** limitations under the License. 15 */ 16 17#include <string> 18#include <sstream> 19 20#include <ctype.h> 21#include <stdint.h> 22#include <stdlib.h> 23 24#include <EGL/egl.h> 25#include <EGL/eglext.h> 26 27#include <utils/threads.h> 28 29#include "egl_object.h" 30 31// ---------------------------------------------------------------------------- 32namespace android { 33// ---------------------------------------------------------------------------- 34 35egl_object_t::egl_object_t(egl_display_t* disp) : 36 display(disp), count(1) { 37 // NOTE: this does an implicit incRef 38 display->addObject(this); 39} 40 41egl_object_t::~egl_object_t() { 42} 43 44void egl_object_t::terminate() { 45 // this marks the object as "terminated" 46 display->removeObject(this); 47 if (decRef() == 1) { 48 // shouldn't happen because this is called from LocalRef 49 ALOGE("egl_object_t::terminate() removed the last reference!"); 50 } 51} 52 53void egl_object_t::destroy() { 54 if (decRef() == 1) { 55 delete this; 56 } 57} 58 59bool egl_object_t::get(egl_display_t const* display, egl_object_t* object) { 60 // used by LocalRef, this does an incRef() atomically with 61 // checking that the object is valid. 62 return display->getObject(object); 63} 64 65// ---------------------------------------------------------------------------- 66 67egl_surface_t::egl_surface_t(egl_display_t* dpy, EGLConfig config, 68 EGLNativeWindowType win, EGLSurface surface, 69 egl_connection_t const* cnx) : 70 egl_object_t(dpy), surface(surface), config(config), win(win), cnx(cnx) 71{ 72 if (win) { 73 getDisplay()->onWindowSurfaceCreated(); 74 } 75} 76 77egl_surface_t::~egl_surface_t() { 78 ANativeWindow* const window = win.get(); 79 if (window != NULL) { 80 native_window_set_buffers_format(window, 0); 81 if (native_window_api_disconnect(window, NATIVE_WINDOW_API_EGL)) { 82 ALOGW("EGLNativeWindowType %p disconnect failed", window); 83 } 84 getDisplay()->onWindowSurfaceDestroyed(); 85 } 86} 87 88// ---------------------------------------------------------------------------- 89 90egl_context_t::egl_context_t(EGLDisplay dpy, EGLContext context, EGLConfig config, 91 egl_connection_t const* cnx, int version) : 92 egl_object_t(get_display_nowake(dpy)), dpy(dpy), context(context), 93 config(config), read(0), draw(0), cnx(cnx), version(version) { 94 get_display_nowake(dpy)->addContext(this); 95} 96 97void egl_context_t::terminate() { 98 display->removeContext(this); 99 egl_object_t::terminate(); 100} 101 102void egl_context_t::onLooseCurrent() { 103 read = NULL; 104 draw = NULL; 105} 106 107void egl_context_t::onMakeCurrent(EGLSurface draw, EGLSurface read) { 108 this->read = read; 109 this->draw = draw; 110 111 /* 112 * Here we cache the GL_EXTENSIONS string for this context and we 113 * add the extensions always handled by the wrapper 114 */ 115 116 if (gl_extensions.isEmpty()) { 117 // call the implementation's glGetString(GL_EXTENSIONS) 118 const char* exts = (const char *)gEGLImpl.hooks[version]->gl.glGetString(GL_EXTENSIONS); 119 gl_extensions.setTo(exts); 120 if (gl_extensions.find("GL_EXT_debug_marker") < 0) { 121 String8 temp("GL_EXT_debug_marker "); 122 temp.append(gl_extensions); 123 gl_extensions.setTo(temp); 124 } 125 126 // tokenize the supported extensions for the glGetStringi() wrapper 127 std::stringstream ss; 128 std::string str; 129 ss << gl_extensions.string(); 130 while (ss >> str) { 131 tokenized_gl_extensions.push(String8(str.c_str())); 132 } 133 } 134} 135 136// ---------------------------------------------------------------------------- 137}; // namespace android 138// ---------------------------------------------------------------------------- 139