Fix a bug about mip dimension calculation

Mip dimension should be greater than or equal to 1, while width >> level
may lead to 0.

Bug: dawn:547

Change-Id: Ib3dfb9fbdbed0e922df6efa366598eff0ca10df2
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/49506
Commit-Queue: Yunchao He <yunchao.he@intel.com>
Reviewed-by: Austin Eng <enga@chromium.org>
This commit is contained in:
Yunchao He 2021-04-30 17:51:58 +00:00 committed by Commit Bot service account
parent bf64a6c8b8
commit 4043ee9c06
3 changed files with 30 additions and 13 deletions

View File

@ -179,17 +179,13 @@ namespace dawn_native {
return DAWN_VALIDATION_ERROR("The mip level count of the resolve target must be 1");
}
uint32_t colorAttachmentBaseMipLevel = attachment->GetBaseMipLevel();
const Extent3D& colorTextureSize = attachment->GetTexture()->GetSize();
uint32_t colorAttachmentWidth = colorTextureSize.width >> colorAttachmentBaseMipLevel;
uint32_t colorAttachmentHeight = colorTextureSize.height >> colorAttachmentBaseMipLevel;
uint32_t resolveTargetBaseMipLevel = resolveTarget->GetBaseMipLevel();
const Extent3D& resolveTextureSize = resolveTarget->GetTexture()->GetSize();
uint32_t resolveTargetWidth = resolveTextureSize.width >> resolveTargetBaseMipLevel;
uint32_t resolveTargetHeight = resolveTextureSize.height >> resolveTargetBaseMipLevel;
if (colorAttachmentWidth != resolveTargetWidth ||
colorAttachmentHeight != resolveTargetHeight) {
const Extent3D& colorTextureSize =
attachment->GetTexture()->GetMipLevelVirtualSize(attachment->GetBaseMipLevel());
const Extent3D& resolveTextureSize =
resolveTarget->GetTexture()->GetMipLevelVirtualSize(
resolveTarget->GetBaseMipLevel());
if (colorTextureSize.width != resolveTextureSize.width ||
colorTextureSize.height != resolveTextureSize.height) {
return DAWN_VALIDATION_ERROR(
"The size of the resolve target must be the same as the color attachment");
}

View File

@ -671,6 +671,27 @@ TEST_P(CopyTests_T2B, TextureMipAligned) {
}
}
// Test that copying mips when one dimension is 256-byte aligned and another dimension reach one
// works
TEST_P(CopyTests_T2B, TextureMipDimensionReachOne) {
constexpr uint32_t mipLevelCount = 4;
constexpr uint32_t kWidth = 256 << mipLevelCount;
constexpr uint32_t kHeight = 2;
TextureSpec defaultTextureSpec;
defaultTextureSpec.textureSize = {kWidth, kHeight, 1};
TextureSpec textureSpec = defaultTextureSpec;
textureSpec.levelCount = mipLevelCount;
for (unsigned int i = 0; i < 4; ++i) {
textureSpec.copyLevel = i;
DoTest(textureSpec,
MinimumBufferSpec(std::max(kWidth >> i, 1u), std::max(kHeight >> i, 1u)),
{std::max(kWidth >> i, 1u), std::max(kHeight >> i, 1u), 1});
}
}
// Test that copying mips without 256-byte aligned sizes works
TEST_P(CopyTests_T2B, TextureMipUnaligned) {
constexpr uint32_t kWidth = 259;

View File

@ -39,8 +39,8 @@ namespace utils {
TextureDataCopyLayout layout;
layout.mipSize = {textureSizeAtLevel0.width >> mipmapLevel,
textureSizeAtLevel0.height >> mipmapLevel,
layout.mipSize = {std::max(textureSizeAtLevel0.width >> mipmapLevel, 1u),
std::max(textureSizeAtLevel0.height >> mipmapLevel, 1u),
textureSizeAtLevel0.depthOrArrayLayers};
layout.bytesPerRow = GetMinimumBytesPerRow(format, layout.mipSize.width);