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Merge "be a bit more defensive when parsing extension strings" into ics-mr1

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This commit is contained in:
Mathias Agopian 2011-11-16 20:59:30 -08:00 committed by Android (Google) Code Review
commit 410f141622
1 changed files with 13 additions and 9 deletions
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22
opengl/libs/EGL/egl_display.cpp
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@ -220,15 +220,19 @@ EGLBoolean egl_display_t::initialize(EGLint *major, EGLint *minor) {
if (end) {
// length of the extension string
const size_t len = end - start;
// NOTE: we could avoid the copy if we had strnstr.
const String8 ext(start, len);
// now go through all implementations and look for this extension
for (int i = 0; i < IMPL_NUM_IMPLEMENTATIONS; i++) {
// if we find it, add this extension string to our list
// (and don't forget the space)
const char* match = strstr(disp[i].queryString.extensions, ext.string());
if (match && (match[len] == ' ' || match[len] == 0)) {
mExtensionString.append(start, len+1);
if (len) {
// NOTE: we could avoid the copy if we had strnstr.
const String8 ext(start, len);
// now go through all implementations and look for this extension
for (int i = 0; i < IMPL_NUM_IMPLEMENTATIONS; i++) {
if (disp[i].queryString.extensions) {
// if we find it, add this extension string to our list
// (and don't forget the space)
const char* match = strstr(disp[i].queryString.extensions, ext.string());
if (match && (match[len] == ' ' || match[len] == 0)) {
mExtensionString.append(start, len+1);
}
}
}
}
// process the next extension string, and skip the space.