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 #include <GLES/gl.h>
24 #include <GLES/glext.h>
25
26 #include <utils/threads.h>
27
28 #include "egl_object.h"
29
30 // ----------------------------------------------------------------------------
31 namespace android {
32 // ----------------------------------------------------------------------------
33
egl_object_t(egl_display_t * disp)34 egl_object_t::egl_object_t(egl_display_t* disp) :
35 display(disp), count(1) {
36 // NOTE: this does an implicit incRef
37 display->addObject(this);
38 }
39
~egl_object_t()40 egl_object_t::~egl_object_t() {
41 }
42
terminate()43 void egl_object_t::terminate() {
44 // this marks the object as "terminated"
45 display->removeObject(this);
46 if (decRef() == 1) {
47 // shouldn't happen because this is called from LocalRef
48 ALOGE("egl_object_t::terminate() removed the last reference!");
49 }
50 }
51
destroy()52 void egl_object_t::destroy() {
53 if (decRef() == 1) {
54 delete this;
55 }
56 }
57
get(egl_display_t const * display,egl_object_t * object)58 bool egl_object_t::get(egl_display_t const* display, egl_object_t* object) {
59 // used by LocalRef, this does an incRef() atomically with
60 // checking that the object is valid.
61 return display->getObject(object);
62 }
63
64 // ----------------------------------------------------------------------------
65
egl_surface_t(egl_display_t * dpy,EGLConfig config,EGLNativeWindowType win,EGLSurface surface,egl_connection_t const * cnx)66 egl_surface_t::egl_surface_t(egl_display_t* dpy, EGLConfig config,
67 EGLNativeWindowType win, EGLSurface surface,
68 egl_connection_t const* cnx) :
69 egl_object_t(dpy), surface(surface), config(config), win(win), cnx(cnx)
70 {
71 if (win) {
72 getDisplay()->onWindowSurfaceCreated();
73 }
74 }
75
~egl_surface_t()76 egl_surface_t::~egl_surface_t() {
77 ANativeWindow* const window = win.get();
78 if (window != NULL) {
79 native_window_set_buffers_format(window, 0);
80 if (native_window_api_disconnect(window, NATIVE_WINDOW_API_EGL)) {
81 ALOGW("EGLNativeWindowType %p disconnect failed", window);
82 }
83 getDisplay()->onWindowSurfaceDestroyed();
84 }
85 }
86
87 // ----------------------------------------------------------------------------
88
egl_context_t(EGLDisplay dpy,EGLContext context,EGLConfig config,egl_connection_t const * cnx,int version)89 egl_context_t::egl_context_t(EGLDisplay dpy, EGLContext context, EGLConfig config,
90 egl_connection_t const* cnx, int version) :
91 egl_object_t(get_display_nowake(dpy)), dpy(dpy), context(context),
92 config(config), read(0), draw(0), cnx(cnx), version(version) {
93 }
94
onLooseCurrent()95 void egl_context_t::onLooseCurrent() {
96 read = NULL;
97 draw = NULL;
98 }
99
onMakeCurrent(EGLSurface draw,EGLSurface read)100 void egl_context_t::onMakeCurrent(EGLSurface draw, EGLSurface read) {
101 this->read = read;
102 this->draw = draw;
103
104 /*
105 * Here we cache the GL_EXTENSIONS string for this context and we
106 * add the extensions always handled by the wrapper
107 */
108
109 if (gl_extensions.isEmpty()) {
110 // call the implementation's glGetString(GL_EXTENSIONS)
111 const char* exts = (const char *)gEGLImpl.hooks[version]->gl.glGetString(GL_EXTENSIONS);
112 gl_extensions.setTo(exts);
113 if (gl_extensions.find("GL_EXT_debug_marker") < 0) {
114 String8 temp("GL_EXT_debug_marker ");
115 temp.append(gl_extensions);
116 gl_extensions.setTo(temp);
117 }
118 }
119 }
120
121 // ----------------------------------------------------------------------------
122 }; // namespace android
123 // ----------------------------------------------------------------------------
124