replicant-frameworks_native/opengl/libs/EGL/egl_object.cpp
Michael Lentine e2fc6f87be Fix parsing of extension string
Previously the parsing found the next space and then added the the difference
between the current position and space to the set of tokens. This improperly
generated empty strings if there were consecutive spaces or if spaces existed at
the beginning or end of strings. To fix this, the parse is modified to use
simple stringstream parsing.

Bug: 22709246

Change-Id: I9e32c07bbf984eadccdadf1dc34437fa0c46088b
2015-07-31 09:26:58 -07:00

133 lines
4.1 KiB
C++

/*
** Copyright 2007, The Android Open Source Project
**
** Licensed under the Apache License, Version 2.0 (the "License");
** you may not use this file except in compliance with the License.
** You may obtain a copy of the License at
**
** http://www.apache.org/licenses/LICENSE-2.0
**
** Unless required by applicable law or agreed to in writing, software
** distributed under the License is distributed on an "AS IS" BASIS,
** WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
** See the License for the specific language governing permissions and
** limitations under the License.
*/
#include <string>
#include <sstream>
#include <ctype.h>
#include <stdint.h>
#include <stdlib.h>
#include <EGL/egl.h>
#include <EGL/eglext.h>
#include <utils/threads.h>
#include "egl_object.h"
// ----------------------------------------------------------------------------
namespace android {
// ----------------------------------------------------------------------------
egl_object_t::egl_object_t(egl_display_t* disp) :
display(disp), count(1) {
// NOTE: this does an implicit incRef
display->addObject(this);
}
egl_object_t::~egl_object_t() {
}
void egl_object_t::terminate() {
// this marks the object as "terminated"
display->removeObject(this);
if (decRef() == 1) {
// shouldn't happen because this is called from LocalRef
ALOGE("egl_object_t::terminate() removed the last reference!");
}
}
void egl_object_t::destroy() {
if (decRef() == 1) {
delete this;
}
}
bool egl_object_t::get(egl_display_t const* display, egl_object_t* object) {
// used by LocalRef, this does an incRef() atomically with
// checking that the object is valid.
return display->getObject(object);
}
// ----------------------------------------------------------------------------
egl_surface_t::egl_surface_t(egl_display_t* dpy, EGLConfig config,
EGLNativeWindowType win, EGLSurface surface,
egl_connection_t const* cnx) :
egl_object_t(dpy), surface(surface), config(config), win(win), cnx(cnx)
{
if (win) {
getDisplay()->onWindowSurfaceCreated();
}
}
egl_surface_t::~egl_surface_t() {
ANativeWindow* const window = win.get();
if (window != NULL) {
native_window_set_buffers_format(window, 0);
if (native_window_api_disconnect(window, NATIVE_WINDOW_API_EGL)) {
ALOGW("EGLNativeWindowType %p disconnect failed", window);
}
getDisplay()->onWindowSurfaceDestroyed();
}
}
// ----------------------------------------------------------------------------
egl_context_t::egl_context_t(EGLDisplay dpy, EGLContext context, EGLConfig config,
egl_connection_t const* cnx, int version) :
egl_object_t(get_display_nowake(dpy)), dpy(dpy), context(context),
config(config), read(0), draw(0), cnx(cnx), version(version) {
}
void egl_context_t::onLooseCurrent() {
read = NULL;
draw = NULL;
}
void egl_context_t::onMakeCurrent(EGLSurface draw, EGLSurface read) {
this->read = read;
this->draw = draw;
/*
* Here we cache the GL_EXTENSIONS string for this context and we
* add the extensions always handled by the wrapper
*/
if (gl_extensions.isEmpty()) {
// call the implementation's glGetString(GL_EXTENSIONS)
const char* exts = (const char *)gEGLImpl.hooks[version]->gl.glGetString(GL_EXTENSIONS);
gl_extensions.setTo(exts);
if (gl_extensions.find("GL_EXT_debug_marker") < 0) {
String8 temp("GL_EXT_debug_marker ");
temp.append(gl_extensions);
gl_extensions.setTo(temp);
}
// tokenize the supported extensions for the glGetStringi() wrapper
std::stringstream ss;
std::string str;
ss << gl_extensions.string();
while (ss >> str) {
tokenized_gl_extensions.push(String8(str.c_str()));
}
}
}
// ----------------------------------------------------------------------------
}; // namespace android
// ----------------------------------------------------------------------------