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BindGroupLayout: Fix off-by-one kMaxBindingsPerGroup validation 

BUG=chromium:906370

Change-Id: I95659856398523931b8aacf1e9a9239ac85f1156
Reviewed-on: https://dawn-review.googlesource.com/c/2567
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
Reviewed-by: Shaobo Yan <shaobo.yan@intel.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
This commit is contained in:
Corentin Wallez 2018-11-21 09:47:19 +00:00 committed by Commit Bot service account
parent ad3d9bafbc
commit 3a5e765f23
2 changed files with 17 additions and 1 deletions
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2
src/dawn_native/BindGroupLayout.cpp
View File

@ -35,7 +35,7 @@ namespace dawn_native {
DAWN_TRY(ValidateShaderStageBit(binding.visibility));
DAWN_TRY(ValidateBindingType(binding.type));
if (binding.binding > kMaxBindingsPerGroup) {
if (binding.binding >= kMaxBindingsPerGroup) {
return DAWN_VALIDATION_ERROR("some binding index exceeds the maximum value");
}
if (bindingsSet[binding.binding]) {

16
src/tests/unittests/validation/BindGroupValidationTests.cpp
View File

@ -13,11 +13,14 @@
// limitations under the License.
#include "tests/unittests/validation/ValidationTest.h"
#include "common/Constants.h"
#include "utils/DawnHelpers.h"
class BindGroupValidationTest : public ValidationTest {
};
// Tests constraints on the buffer view offset for bind groups.
TEST_F(BindGroupValidationTest, BufferViewOffset) {
auto layout = utils::MakeBindGroupLayout(
device, {
@ -129,3 +132,16 @@ TEST_F(BindGroupValidationTest, BindGroupBinding) {
{0, dawn::ShaderStageBit::Vertex, dawn::BindingType::UniformBuffer},
});
}
// Tests setting OOB checks for kMaxBindingsPerGroup in bind group layouts.
TEST_F(BindGroupValidationTest, BindGroupLayoutBindingOOB) {
// Checks that kMaxBindingsPerGroup - 1 is valid.
utils::MakeBindGroupLayout(device, {
{kMaxBindingsPerGroup - 1, dawn::ShaderStageBit::Vertex, dawn::BindingType::UniformBuffer}
});
// Checks that kMaxBindingsPerGroup is OOB
ASSERT_DEVICE_ERROR(utils::MakeBindGroupLayout(device, {
{kMaxBindingsPerGroup, dawn::ShaderStageBit::Vertex, dawn::BindingType::UniformBuffer}
}));
}