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 // ----------------------------------------------------------------------------
32 namespace android {
33 // ----------------------------------------------------------------------------
34
egl_object_t(egl_display_t * disp)35 egl_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
~egl_object_t()41 egl_object_t::~egl_object_t() {
42 }
43
terminate()44 void 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
destroy()53 void egl_object_t::destroy() {
54 if (decRef() == 1) {
55 delete this;
56 }
57 }
58
get(egl_display_t const * display,egl_object_t * object)59 bool 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
egl_surface_t(egl_display_t * dpy,EGLConfig config,EGLNativeWindowType win,EGLSurface surface,egl_connection_t const * cnx)67 egl_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 connected(true)
72 {
73 if (win) {
74 getDisplay()->onWindowSurfaceCreated();
75 }
76 }
77
~egl_surface_t()78 egl_surface_t::~egl_surface_t() {
79 ANativeWindow* const window = win.get();
80 if (window != NULL) {
81 disconnect();
82 getDisplay()->onWindowSurfaceDestroyed();
83 }
84 }
85
disconnect()86 void egl_surface_t::disconnect() {
87 ANativeWindow* const window = win.get();
88 if (window != NULL && connected) {
89 native_window_set_buffers_format(window, 0);
90 if (native_window_api_disconnect(window, NATIVE_WINDOW_API_EGL)) {
91 ALOGW("EGLNativeWindowType %p disconnect failed", window);
92 }
93 connected = false;
94 }
95 }
96
terminate()97 void egl_surface_t::terminate() {
98 disconnect();
99 egl_object_t::terminate();
100 }
101
102 // ----------------------------------------------------------------------------
103
egl_context_t(EGLDisplay dpy,EGLContext context,EGLConfig config,egl_connection_t const * cnx,int version)104 egl_context_t::egl_context_t(EGLDisplay dpy, EGLContext context, EGLConfig config,
105 egl_connection_t const* cnx, int version) :
106 egl_object_t(get_display_nowake(dpy)), dpy(dpy), context(context),
107 config(config), read(0), draw(0), cnx(cnx), version(version) {
108 }
109
onLooseCurrent()110 void egl_context_t::onLooseCurrent() {
111 read = NULL;
112 draw = NULL;
113 }
114
onMakeCurrent(EGLSurface draw,EGLSurface read)115 void egl_context_t::onMakeCurrent(EGLSurface draw, EGLSurface read) {
116 this->read = read;
117 this->draw = draw;
118
119 /*
120 * Here we cache the GL_EXTENSIONS string for this context and we
121 * add the extensions always handled by the wrapper
122 */
123
124 if (gl_extensions.isEmpty()) {
125 // call the implementation's glGetString(GL_EXTENSIONS)
126 const char* exts = (const char *)gEGLImpl.hooks[version]->gl.glGetString(GL_EXTENSIONS);
127 gl_extensions.setTo(exts);
128 if (gl_extensions.find("GL_EXT_debug_marker") < 0) {
129 String8 temp("GL_EXT_debug_marker ");
130 temp.append(gl_extensions);
131 gl_extensions.setTo(temp);
132 }
133
134 // tokenize the supported extensions for the glGetStringi() wrapper
135 std::stringstream ss;
136 std::string str;
137 ss << gl_extensions.string();
138 while (ss >> str) {
139 tokenized_gl_extensions.push(String8(str.c_str()));
140 }
141 }
142 }
143
144 // ----------------------------------------------------------------------------
145 }; // namespace android
146 // ----------------------------------------------------------------------------
147