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Commit e1e6f294 by Alexis Hetu Committed by Commit Bot
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Make copyTexImage2D robust when source area is out of bounds

Whenever the source area of the texture being copied is out of bounds and robust resource init is enabled, it is necessary to clear the invalid portion of the source area to 0 in the copy operation. Bug: angleproject:3930 Change-Id: If1605b917097006c37e7d59c66babbc32d0ba6d8 Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2378004Reviewed-by: 's avatarGeoff Lang <geofflang@chromium.org> Reviewed-by: 's avatarback sept 10 - Jamie Madill <jmadill@chromium.org> Commit-Queue: Alexis Hétu <sugoi@chromium.org>
parent a25b165a
Showing with 26 additions and 14 deletions
src/libANGLE/Texture.cpp
......@@ -1101,7 +1101,7 @@ angle::Result Texture::setSubImage(Context *context,
ASSERT(TextureTargetToType(target) == mState.mType);
ImageIndex index = ImageIndex::MakeFromTarget(target, level, area.depth);
ANGLE_TRY(ensureSubImageInitialized(context, index, area));
ANGLE_TRY(ensureSubImageInitialized(context, index, area, false));
ANGLE_TRY(mTexture->setSubImage(context, index, area, format, type, unpackState, unpackBuffer,
pixels));
......@@ -1154,7 +1154,7 @@ angle::Result Texture::setCompressedSubImage(const Context *context,
ASSERT(TextureTargetToType(target) == mState.mType);
ImageIndex index = ImageIndex::MakeFromTarget(target, level, area.depth);
ANGLE_TRY(ensureSubImageInitialized(context, index, area));
ANGLE_TRY(ensureSubImageInitialized(context, index, area, false));
ANGLE_TRY(mTexture->setCompressedSubImage(context, index, area, format, unpackState, imageSize,
pixels));
......@@ -1188,9 +1188,13 @@ angle::Result Texture::copyImage(Context *context,
// the copy lies entirely off the source framebuffer, initialize as though a zero-size box is
// going to be set during the copy operation.
Box destBox;
bool sourceAreaIsOutOfBounds = false;
if (context->isRobustResourceInitEnabled())
{
Extents fbSize = source->getReadColorAttachment()->getSize();
Extents fbSize = source->getReadColorAttachment()->getSize();
sourceAreaIsOutOfBounds = (sourceArea.x < 0) || (sourceArea.y < 0) ||
((sourceArea.x + sourceArea.width) > fbSize.width) ||
((sourceArea.y + sourceArea.height) > fbSize.height);
Rectangle clippedArea;
if (ClipRectangle(sourceArea, Rectangle(0, 0, fbSize.width, fbSize.height), &clippedArea))
{
......@@ -1205,14 +1209,14 @@ angle::Result Texture::copyImage(Context *context,
// an initializeContents call, and then a copySubImage call. This ensures the destination
// texture exists before we try to clear it.
Extents size(sourceArea.width, sourceArea.height, 1);
if (doesSubImageNeedInit(context, index, destBox))
if (doesSubImageNeedInit(context, index, destBox, sourceAreaIsOutOfBounds))
{
ANGLE_TRY(mTexture->setImage(context, index, internalFormat, size,
internalFormatInfo.format, internalFormatInfo.type,
PixelUnpackState(), nullptr, nullptr));
mState.setImageDesc(target, level,
ImageDesc(size, Format(internalFormatInfo), InitState::MayNeedInit));
ANGLE_TRY(ensureSubImageInitialized(context, index, destBox));
ANGLE_TRY(ensureSubImageInitialized(context, index, destBox, sourceAreaIsOutOfBounds));
ANGLE_TRY(mTexture->copySubImage(context, index, Offset(), sourceArea, source));
}
else
......@@ -1247,9 +1251,13 @@ angle::Result Texture::copySubImage(Context *context,
// ensureSubImageInitialized ensures initialization of the entire destination texture, and not
// just a sub-region.
Box destBox;
bool sourceAreaIsOutOfBounds = false;
if (context->isRobustResourceInitEnabled())
{
Extents fbSize = source->getReadColorAttachment()->getSize();
Extents fbSize = source->getReadColorAttachment()->getSize();
sourceAreaIsOutOfBounds = (sourceArea.x < 0) || (sourceArea.y < 0) ||
((sourceArea.x + sourceArea.width) > fbSize.width) ||
((sourceArea.y + sourceArea.height) > fbSize.height);
Rectangle clippedArea;
if (ClipRectangle(sourceArea, Rectangle(0, 0, fbSize.width, fbSize.height), &clippedArea))
{
......@@ -1260,7 +1268,7 @@ angle::Result Texture::copySubImage(Context *context,
}
}
ANGLE_TRY(ensureSubImageInitialized(context, index, destBox));
ANGLE_TRY(ensureSubImageInitialized(context, index, destBox, sourceAreaIsOutOfBounds));
ANGLE_TRY(mTexture->copySubImage(context, index, destOffset, sourceArea, source));
ANGLE_TRY(handleMipmapGenerationHint(context, index.getLevelIndex()));
......@@ -1328,7 +1336,7 @@ angle::Result Texture::copySubTexture(const Context *context,
Box destBox(destOffset.x, destOffset.y, destOffset.z, sourceBox.width, sourceBox.height,
sourceBox.depth);
ImageIndex index = ImageIndex::MakeFromTarget(target, level, sourceBox.depth);
ANGLE_TRY(ensureSubImageInitialized(context, index, destBox));
ANGLE_TRY(ensureSubImageInitialized(context, index, destBox, false));
ANGLE_TRY(mTexture->copySubTexture(context, index, destOffset, sourceLevel, sourceBox,
unpackFlipY, unpackPremultiplyAlpha, unpackUnmultiplyAlpha,
......@@ -1918,7 +1926,8 @@ void Texture::setInitState(const ImageIndex &imageIndex, InitState initState)
bool Texture::doesSubImageNeedInit(const Context *context,
const ImageIndex &imageIndex,
const Box &area) const
const Box &area,
bool sourceAreaIsOutOfBounds) const
{
if (!context->isRobustResourceInitEnabled() || mState.mInitState == InitState::Initialized)
{
......@@ -1933,14 +1942,15 @@ bool Texture::doesSubImageNeedInit(const Context *context,
}
ASSERT(mState.mInitState == InitState::MayNeedInit);
return !area.coversSameExtent(desc.size);
return sourceAreaIsOutOfBounds || !area.coversSameExtent(desc.size);
}
angle::Result Texture::ensureSubImageInitialized(const Context *context,
const ImageIndex &imageIndex,
const Box &area)
const Box &area,
bool sourceAreaIsOutOfBounds)
{
if (doesSubImageNeedInit(context, imageIndex, area))
if (doesSubImageNeedInit(context, imageIndex, area, sourceAreaIsOutOfBounds))
{
// NOTE: do not optimize this to only initialize the passed area of the texture, or the
// initialization logic in copySubImage will be incorrect.
......
src/libANGLE/Texture.h
......@@ -579,10 +579,12 @@ class Texture final : public RefCountObject<TextureID>,
bool doesSubImageNeedInit(const Context *context,
const ImageIndex &imageIndex,
const Box &area) const;
const Box &area,
bool sourceAreaIsOutOfBounds) const;
angle::Result ensureSubImageInitialized(const Context *context,
const ImageIndex &imageIndex,
const Box &area);
const Box &area,
bool sourceAreaIsOutOfBounds);
angle::Result handleMipmapGenerationHint(Context *context, int level);
......
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