// static
ImmutableString ImageFunctionHLSL::GetImageReference(
TInfoSinkBase &out,
const ImageFunctionHLSL::ImageFunction &imageFunction)
{
static const ImmutableString kImageIndexStr("[index]");
if (imageFunction.readonly)
{
static const ImmutableString kReadonlyImagesStr("readonlyImages");
ImmutableString suffix(
TextureGroupSuffix(imageFunction.image, imageFunction.imageInternalFormat));
out << " const uint index = imageIndex - readonlyImageIndexOffset" << suffix.data()
<< ";\n";
ImmutableStringBuilder imageRefBuilder(kReadonlyImagesStr.length() + suffix.length() +
kImageIndexStr.length());
imageRefBuilder << kReadonlyImagesStr << suffix << kImageIndexStr;
return imageRefBuilder;
}
else
{
static const ImmutableString kImagesStr("images");
ImmutableString suffix(
RWTextureGroupSuffix(imageFunction.image, imageFunction.imageInternalFormat));
out << " const uint index = imageIndex - imageIndexOffset" << suffix.data() << ";\n";
ImmutableStringBuilder imageRefBuilder(kImagesStr.length() + suffix.length() +
kImageIndexStr.length());
imageRefBuilder << kImagesStr << suffix << kImageIndexStr;
return imageRefBuilder;
}
}
ImmutableString ImageFunctionHLSL::ImageFunction::name() const
{
static const ImmutableString kGlImageName("gl_image");
ImmutableString suffix(nullptr);
if (readonly)
{
suffix = ImmutableString(TextureTypeSuffix(image, imageInternalFormat));
}
else
{
suffix = ImmutableString(RWTextureTypeSuffix(image, imageInternalFormat));
}
ImmutableStringBuilder name(kGlImageName.length() + suffix.length() + 5u);
name << kGlImageName << suffix;
switch (method)
{
case Method::SIZE:
name << "Size";
break;
case Method::LOAD:
name << "Load";
break;
case Method::STORE:
name << "Store";
break;
default:
UNREACHABLE();
}
return name;
}