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 <ctype.h>
18 #include <stdint.h>
19 #include <stdlib.h>
20
21 #include <EGL/egl.h>
22 #include <EGL/eglext.h>
23
24 #include <utils/threads.h>
25
26 #include "egl_object.h"
27
28 // ----------------------------------------------------------------------------
29 namespace android {
30 // ----------------------------------------------------------------------------
31
egl_object_t(egl_display_t * disp)32 egl_object_t::egl_object_t(egl_display_t* disp) :
33 display(disp), count(1) {
34 // NOTE: this does an implicit incRef
35 display->addObject(this);
36 }
37
~egl_object_t()38 egl_object_t::~egl_object_t() {
39 }
40
terminate()41 void egl_object_t::terminate() {
42 // this marks the object as "terminated"
43 display->removeObject(this);
44 if (decRef() == 1) {
45 // shouldn't happen because this is called from LocalRef
46 ALOGE("egl_object_t::terminate() removed the last reference!");
47 }
48 }
49
destroy()50 void egl_object_t::destroy() {
51 if (decRef() == 1) {
52 delete this;
53 }
54 }
55
get(egl_display_t const * display,egl_object_t * object)56 bool egl_object_t::get(egl_display_t const* display, egl_object_t* object) {
57 // used by LocalRef, this does an incRef() atomically with
58 // checking that the object is valid.
59 return display->getObject(object);
60 }
61
62 // ----------------------------------------------------------------------------
63
egl_surface_t(egl_display_t * dpy,EGLConfig config,EGLNativeWindowType win,EGLSurface surface,egl_connection_t const * cnx)64 egl_surface_t::egl_surface_t(egl_display_t* dpy, EGLConfig config,
65 EGLNativeWindowType win, EGLSurface surface,
66 egl_connection_t const* cnx) :
67 egl_object_t(dpy), surface(surface), config(config), win(win), cnx(cnx)
68 {
69 if (win) {
70 getDisplay()->onWindowSurfaceCreated();
71 }
72 }
73
~egl_surface_t()74 egl_surface_t::~egl_surface_t() {
75 ANativeWindow* const window = win.get();
76 if (window != NULL) {
77 native_window_set_buffers_format(window, 0);
78 if (native_window_api_disconnect(window, NATIVE_WINDOW_API_EGL)) {
79 ALOGW("EGLNativeWindowType %p disconnect failed", window);
80 }
81 getDisplay()->onWindowSurfaceDestroyed();
82 }
83 }
84
85 // ----------------------------------------------------------------------------
86
egl_context_t(EGLDisplay dpy,EGLContext context,EGLConfig config,egl_connection_t const * cnx,int version)87 egl_context_t::egl_context_t(EGLDisplay dpy, EGLContext context, EGLConfig config,
88 egl_connection_t const* cnx, int version) :
89 egl_object_t(get_display_nowake(dpy)), dpy(dpy), context(context),
90 config(config), read(0), draw(0), cnx(cnx), version(version) {
91 }
92
onLooseCurrent()93 void egl_context_t::onLooseCurrent() {
94 read = NULL;
95 draw = NULL;
96 }
97
onMakeCurrent(EGLSurface draw,EGLSurface read)98 void egl_context_t::onMakeCurrent(EGLSurface draw, EGLSurface read) {
99 this->read = read;
100 this->draw = draw;
101
102 /*
103 * Here we cache the GL_EXTENSIONS string for this context and we
104 * add the extensions always handled by the wrapper
105 */
106
107 if (gl_extensions.isEmpty()) {
108 // call the implementation's glGetString(GL_EXTENSIONS)
109 const char* exts = (const char *)gEGLImpl.hooks[version]->gl.glGetString(GL_EXTENSIONS);
110 gl_extensions.setTo(exts);
111 if (gl_extensions.find("GL_EXT_debug_marker") < 0) {
112 String8 temp("GL_EXT_debug_marker ");
113 temp.append(gl_extensions);
114 gl_extensions.setTo(temp);
115 }
116 }
117 }
118
119 // ----------------------------------------------------------------------------
120 }; // namespace android
121 // ----------------------------------------------------------------------------
122