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 "egl_object.h"
18
19 #include <sstream>
20
21
22 // ----------------------------------------------------------------------------
23 namespace android {
24 // ----------------------------------------------------------------------------
25
egl_object_t(egl_display_t * disp)26 egl_object_t::egl_object_t(egl_display_t* disp) :
27 display(disp), count(1) {
28 // NOTE: this does an implicit incRef
29 display->addObject(this);
30 }
31
~egl_object_t()32 egl_object_t::~egl_object_t() {
33 }
34
terminate()35 void egl_object_t::terminate() {
36 // this marks the object as "terminated"
37 display->removeObject(this);
38 if (decRef() == 1) {
39 // shouldn't happen because this is called from LocalRef
40 ALOGE("egl_object_t::terminate() removed the last reference!");
41 }
42 }
43
destroy()44 void egl_object_t::destroy() {
45 if (decRef() == 1) {
46 delete this;
47 }
48 }
49
get(egl_display_t const * display,egl_object_t * object)50 bool egl_object_t::get(egl_display_t const* display, egl_object_t* object) {
51 // used by LocalRef, this does an incRef() atomically with
52 // checking that the object is valid.
53 return display->getObject(object);
54 }
55
56 // ----------------------------------------------------------------------------
57
egl_surface_t(egl_display_t * dpy,EGLConfig config,EGLNativeWindowType win,EGLSurface surface,egl_connection_t const * cnx)58 egl_surface_t::egl_surface_t(egl_display_t* dpy, EGLConfig config,
59 EGLNativeWindowType win, EGLSurface surface,
60 egl_connection_t const* cnx) :
61 egl_object_t(dpy), surface(surface), config(config), win(win), cnx(cnx),
62 connected(true)
63 {
64 if (win) {
65 win->incStrong(this);
66 }
67 }
68
~egl_surface_t()69 egl_surface_t::~egl_surface_t() {
70 if (win != NULL) {
71 disconnect();
72 win->decStrong(this);
73 }
74 }
75
disconnect()76 void egl_surface_t::disconnect() {
77 if (win != NULL && connected) {
78 native_window_set_buffers_format(win, 0);
79 if (native_window_api_disconnect(win, NATIVE_WINDOW_API_EGL)) {
80 ALOGW("EGLNativeWindowType %p disconnect failed", win);
81 }
82 connected = false;
83 }
84 }
85
terminate()86 void egl_surface_t::terminate() {
87 disconnect();
88 egl_object_t::terminate();
89 }
90
91 // ----------------------------------------------------------------------------
92
egl_context_t(EGLDisplay dpy,EGLContext context,EGLConfig config,egl_connection_t const * cnx,int version)93 egl_context_t::egl_context_t(EGLDisplay dpy, EGLContext context, EGLConfig config,
94 egl_connection_t const* cnx, int version) :
95 egl_object_t(get_display_nowake(dpy)), dpy(dpy), context(context),
96 config(config), read(0), draw(0), cnx(cnx), version(version) {
97 }
98
onLooseCurrent()99 void egl_context_t::onLooseCurrent() {
100 read = NULL;
101 draw = NULL;
102 }
103
onMakeCurrent(EGLSurface draw,EGLSurface read)104 void egl_context_t::onMakeCurrent(EGLSurface draw, EGLSurface read) {
105 this->read = read;
106 this->draw = draw;
107
108 /*
109 * Here we cache the GL_EXTENSIONS string for this context and we
110 * add the extensions always handled by the wrapper
111 */
112
113 if (gl_extensions.empty()) {
114 // call the implementation's glGetString(GL_EXTENSIONS)
115 const char* exts = (const char *)gEGLImpl.hooks[version]->gl.glGetString(GL_EXTENSIONS);
116 gl_extensions = exts;
117 if (gl_extensions.find("GL_EXT_debug_marker") == std::string::npos) {
118 gl_extensions.insert(0, "GL_EXT_debug_marker ");
119 }
120
121 // tokenize the supported extensions for the glGetStringi() wrapper
122 std::stringstream ss;
123 std::string str;
124 ss << gl_extensions;
125 while (ss >> str) {
126 tokenized_gl_extensions.push_back(str);
127 }
128 }
129 }
130
131 // ----------------------------------------------------------------------------
132 }; // namespace android
133 // ----------------------------------------------------------------------------
134