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Texture: Add validation that the mip chain can't be too large

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BUG=chromium:954769

Change-Id: I07a00230294cb9385b79edb6150d9f0f7b4b7284
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/6760
Commit-Queue: Corentin Wallez <cwallez@chromium.org>
Reviewed-by: Austin Eng <enga@chromium.org>
Reviewed-by: Kai Ninomiya <kainino@chromium.org>
This commit is contained in:
Corentin Wallez
2019-04-29 09:31:06 +00:00
committed by Commit Bot service account
parent 9286adcb0f
commit bbed457796
3 changed files with 76 additions and 2 deletions
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68
src/tests/unittests/validation/TextureValidationTests.cpp
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@@ -95,6 +95,74 @@ TEST_F(TextureValidationTest, SampleCount) {
}
}
// Test the validation of the mip level count
TEST_F(TextureValidationTest, MipLevelCount) {
dawn::TextureDescriptor defaultDescriptor = CreateDefaultTextureDescriptor();
// mipLevelCount == 1 is allowed
{
dawn::TextureDescriptor descriptor = defaultDescriptor;
descriptor.size.width = 32;
descriptor.size.height = 32;
descriptor.mipLevelCount = 1;
device.CreateTexture(&descriptor);
}
// mipLevelCount == 0 is an error
{
dawn::TextureDescriptor descriptor = defaultDescriptor;
descriptor.size.width = 32;
descriptor.size.height = 32;
descriptor.mipLevelCount = 0;
ASSERT_DEVICE_ERROR(device.CreateTexture(&descriptor));
}
// Full mip chains are allowed
{
dawn::TextureDescriptor descriptor = defaultDescriptor;
descriptor.size.width = 32;
descriptor.size.height = 32;
// Mip level sizes: 32, 16, 8, 4, 2, 1
descriptor.mipLevelCount = 6;
device.CreateTexture(&descriptor);
}
// Too big mip chains on width are disallowed
{
dawn::TextureDescriptor descriptor = defaultDescriptor;
descriptor.size.width = 31;
descriptor.size.height = 32;
// Mip level width: 31, 15, 7, 3, 1
descriptor.mipLevelCount = 6;
ASSERT_DEVICE_ERROR(device.CreateTexture(&descriptor));
}
// Too big mip chains on height are disallowed
{
dawn::TextureDescriptor descriptor = defaultDescriptor;
descriptor.size.width = 32;
descriptor.size.height = 31;
// Mip level height: 31, 15, 7, 3, 1
descriptor.mipLevelCount = 6;
ASSERT_DEVICE_ERROR(device.CreateTexture(&descriptor));
}
// Undefined shift check if miplevel is bigger than the integer bit width.
{
dawn::TextureDescriptor descriptor = defaultDescriptor;
descriptor.size.width = 32;
descriptor.size.height = 32;
descriptor.mipLevelCount = 100;
ASSERT_DEVICE_ERROR(device.CreateTexture(&descriptor));
}
}
// Test that it is valid to destroy a texture
TEST_F(TextureValidationTest, DestroyTexture) {
dawn::TextureDescriptor descriptor = CreateDefaultTextureDescriptor();