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Bug 1873996 - Block optional features by default for wildcard/unspecified gfx blocklist entries. r=jrmuizel

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Downloadable blocklist entries did not have an explicit way to declare a
rule to affect all features prior to this patch. Instead they would
leave the "feature" attribute unset, which defaults us to
GfxDriverInfo::allFeatures. Now if it is unset, it defaults to
GfxDriverInfo::optionalFeatures. There are also explicit wildcard
feature strings, ALL and OPTIONAL respectively.

Differential Revision: https://phabricator.services.mozilla.com/D198193
This commit is contained in:
Andrew Osmond 2024-01-11 00:34:57 +00:00
parent e0cc765727
commit 8f25da9554
3 changed files with 12 additions and 6 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

2
widget/GfxDriverInfo.cpp
View file

@ -28,7 +28,7 @@ GfxDriverInfo::GfxDriverInfo()
mDriverVendor(GfxDriverInfo::GetDriverVendor(DriverVendor::All)),
mDevices(GfxDriverInfo::GetDeviceFamily(DeviceFamily::All)),
mDeleteDevices(false),
mFeature(allFeatures),
mFeature(optionalFeatures),
mFeatureStatus(nsIGfxInfo::FEATURE_STATUS_OK),
mComparisonOp(DRIVER_COMPARISON_IGNORED),
mDriverVersion(0),

4
widget/GfxDriverInfo.h
View file

@ -329,9 +329,9 @@ struct GfxDriverInfo {
/* A feature from nsIGfxInfo, or a wildcard set of features */
int32_t mFeature;
/* Block all features */
static constexpr int32_t allFeatures = 0;
static constexpr int32_t allFeatures = -1;
/* Block all features not permitted by OnlyAllowFeatureOnKnownConfig */
static constexpr int32_t optionalFeatures = -1;
static constexpr int32_t optionalFeatures = -2;
/* A feature status from nsIGfxInfo */
int32_t mFeatureStatus;

12
widget/GfxInfoBase.cpp
View file

@ -549,13 +549,19 @@ static int32_t BlocklistFeatureToGfxFeature(const nsAString& aFeature) {
if (aFeature.EqualsLiteral("ACCELERATED_CANVAS2D")) {
return nsIGfxInfo::FEATURE_ACCELERATED_CANVAS2D;
}
if (aFeature.EqualsLiteral("ALL")) {
return GfxDriverInfo::allFeatures;
}
if (aFeature.EqualsLiteral("OPTIONAL")) {
return GfxDriverInfo::optionalFeatures;
}
// If we don't recognize the feature, it may be new, and something
// this version doesn't understand. So, nothing to do. This is
// different from feature not being specified at all, in which case
// this method should not get called and we should continue with the
// "all features" blocklisting.
return -1;
// "optional features" blocklisting.
return 0;
}
static int32_t BlocklistFeatureStatusToGfxFeatureStatus(
@ -686,7 +692,7 @@ static bool BlocklistEntryToDriverInfo(const nsACString& aBlocklistEntry,
aDriverInfo.mDriverVendor = dataValue;
} else if (key.EqualsLiteral("feature")) {
aDriverInfo.mFeature = BlocklistFeatureToGfxFeature(dataValue);
if (aDriverInfo.mFeature < 0) {
if (aDriverInfo.mFeature == 0) {
// If we don't recognize the feature, we do not want to proceed.
gfxWarning() << "Unrecognized feature " << value.get();
return false;