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writers: Duplicate cube height for textureDimensions() 

All shader backend languages describe cubes as width / height, but give no way to query depth. WGSL however returns a vec3<i32> for cube textures when calling textureDimensions().
As cube textures must be square (width == height == depth), just replicate the height for the depth.

See https://github.com/gpuweb/gpuweb/issues/1345

Bug: tint:140
Bug: tint:437
Change-Id: I76ef18ee4bd8b53d5f9d9d3f1c10c3f7cb23e137
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/37446
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: David Neto <dneto@google.com>
This commit is contained in:
Ben Clayton 2021-01-12 21:20:48 +00:00 committed by Commit Bot service account
parent ecc2cdfb61
commit 2dbd556a18
6 changed files with 193 additions and 111 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

35
src/writer/hlsl/generator_impl.cc
View File

@ -745,7 +745,8 @@ bool GeneratorImpl::EmitTextureCall(std::ostream& pre,
auto const kNotUsed = ast::intrinsic::TextureSignature::Parameters::kNotUsed;
auto* texture = params[pidx.texture];
auto* texture_type = texture->result_type()->UnwrapPtrIfNeeded();
auto* texture_type =
texture->result_type()->UnwrapPtrIfNeeded()->As<ast::type::Texture>();
if (ident->intrinsic() == ast::Intrinsic::kTextureDimensions) {
// Declare a variable to hold the texture dimensions
@ -763,17 +764,29 @@ bool GeneratorImpl::EmitTextureCall(std::ostream& pre,
if (pidx.level != kNotUsed) {
pre << pidx.level << ", ";
}
if (auto* vec = expr->result_type()->As<ast::type::Vector>()) {
for (uint32_t i = 0; i < vec->size(); i++) {
if (i > 0) {
pre << ", ";
switch (texture_type->dim()) {
case ast::type::TextureDimension::kNone:
error_ = "texture dimension is kNone";
return false;
case ast::type::TextureDimension::k1d:
case ast::type::TextureDimension::k1dArray:
pre << dims << ");";
break;
case ast::type::TextureDimension::k2d:
case ast::type::TextureDimension::k2dArray:
pre << dims << "[0], " << dims << "[1]);";
break;
case ast::type::TextureDimension::k3d:
pre << dims << "[0], " << dims << "[1], " << dims << "[2]);";
break;
case ast::type::TextureDimension::kCube:
case ast::type::TextureDimension::kCubeArray:
// width == height == depth for cubes
// See https://github.com/gpuweb/gpuweb/issues/1345
pre << dims << "[0], " << dims << "[1]);\n";
pre << dims << "[2] = " << dims << "[1];"; // dims[2] = dims[1]
break;
}
pre << dims << "[" << i << "]";
}
} else {
pre << dims;
}
pre << ");";
// The result of the textureDimensions() call is now the temporary variable.
out << dims;

24
src/writer/hlsl/generator_impl_intrinsic_texture_test.cc
View File

@ -67,10 +67,6 @@ ExpectedResult expected_texture_overload(
"_tint_tmp",
};
case ValidTextureOverload::kDimensions3d:
case ValidTextureOverload::kDimensionsCube:
case ValidTextureOverload::kDimensionsCubeArray:
case ValidTextureOverload::kDimensionsDepthCube:
case ValidTextureOverload::kDimensionsDepthCubeArray:
case ValidTextureOverload::kDimensionsStorageRO3d:
case ValidTextureOverload::kDimensionsStorageWO3d:
return {
@ -79,6 +75,16 @@ ExpectedResult expected_texture_overload(
"_tint_tmp[2]);",
"_tint_tmp",
};
case ValidTextureOverload::kDimensionsCube:
case ValidTextureOverload::kDimensionsCubeArray:
case ValidTextureOverload::kDimensionsDepthCube:
case ValidTextureOverload::kDimensionsDepthCubeArray:
return {
"int3 _tint_tmp;\n"
"texture_tint_0.GetDimensions(_tint_tmp[0], _tint_tmp[1]);\n"
"_tint_tmp[2] = _tint_tmp[1];",
"_tint_tmp",
};
case ValidTextureOverload::kDimensions2dLevel:
case ValidTextureOverload::kDimensions2dArrayLevel:
case ValidTextureOverload::kDimensionsDepth2dLevel:
@ -89,14 +95,20 @@ ExpectedResult expected_texture_overload(
"_tint_tmp",
};
case ValidTextureOverload::kDimensions3dLevel:
return {
"int3 _tint_tmp;\n"
"texture_tint_0.GetDimensions(1, _tint_tmp[0], _tint_tmp[1], "
"_tint_tmp[2]);",
"_tint_tmp",
};
case ValidTextureOverload::kDimensionsCubeLevel:
case ValidTextureOverload::kDimensionsCubeArrayLevel:
case ValidTextureOverload::kDimensionsDepthCubeLevel:
case ValidTextureOverload::kDimensionsDepthCubeArrayLevel:
return {
"int3 _tint_tmp;\n"
"texture_tint_0.GetDimensions(1, _tint_tmp[0], _tint_tmp[1], "
"_tint_tmp[2]);",
"texture_tint_0.GetDimensions(1, _tint_tmp[0], _tint_tmp[1]);\n"
"_tint_tmp[2] = _tint_tmp[1];",
"_tint_tmp",
};
case ValidTextureOverload::kSample1dF32:

64
src/writer/msl/generator_impl.cc
View File

@ -665,7 +665,37 @@ bool GeneratorImpl::EmitTextureCall(ast::CallExpression* expr) {
auto& pidx = signature->params.idx;
auto const kNotUsed = ast::intrinsic::TextureSignature::Parameters::kNotUsed;
assert(pidx.texture != kNotUsed);
auto* texture_type = params[pidx.texture]
->result_type()
->UnwrapAll()
->As<ast::type::Texture>();
if (ident->intrinsic() == ast::Intrinsic::kTextureDimensions) {
std::vector<const char*> dims;
switch (texture_type->dim()) {
case ast::type::TextureDimension::kNone:
error_ = "texture dimension is kNone";
return false;
case ast::type::TextureDimension::k1d:
case ast::type::TextureDimension::k1dArray:
dims = {"width"};
break;
case ast::type::TextureDimension::k2d:
case ast::type::TextureDimension::k2dArray:
dims = {"width", "height"};
break;
case ast::type::TextureDimension::k3d:
dims = {"width", "height", "depth"};
break;
case ast::type::TextureDimension::kCube:
case ast::type::TextureDimension::kCubeArray:
// width == height == depth for cubes
// See https://github.com/gpuweb/gpuweb/issues/1345
dims = {"width", "height", "height"};
break;
}
auto get_dim = [&](const char* name) {
if (!EmitExpression(params[pidx.texture])) {
return false;
@ -678,32 +708,18 @@ bool GeneratorImpl::EmitTextureCall(ast::CallExpression* expr) {
return true;
};
size_t dims = 1;
if (auto* vec = expr->result_type()->As<ast::type::Vector>()) {
dims = vec->size();
if (dims.size() == 1) {
get_dim(dims[0]);
} else {
EmitType(expr->result_type(), "");
out_ << "(";
for (size_t i = 0; i < dims.size(); i++) {
if (i > 0) {
out_ << ", ";
}
get_dim(dims[i]);
}
switch (dims) {
case 1:
get_dim("width");
break;
case 2:
EmitType(expr->result_type(), "");
out_ << "(";
get_dim("width");
out_ << ", ";
get_dim("height");
out_ << ")";
break;
case 3:
EmitType(expr->result_type(), "");
out_ << "(";
get_dim("width");
out_ << ", ";
get_dim("height");
out_ << ", ";
get_dim("depth");
out_ << ")";
break;
}
return true;
}

10
src/writer/msl/generator_impl_intrinsic_texture_test.cc
View File

@ -51,24 +51,26 @@ std::string expected_texture_overload(
case ValidTextureOverload::kDimensionsStorageWO2dArray:
return R"(int2(texture_tint_0.get_width(), texture_tint_0.get_height()))";
case ValidTextureOverload::kDimensions3d:
case ValidTextureOverload::kDimensionsStorageRO3d:
case ValidTextureOverload::kDimensionsStorageWO3d:
return R"(int3(texture_tint_0.get_width(), texture_tint_0.get_height(), texture_tint_0.get_depth()))";
case ValidTextureOverload::kDimensionsCube:
case ValidTextureOverload::kDimensionsCubeArray:
case ValidTextureOverload::kDimensionsDepthCube:
case ValidTextureOverload::kDimensionsDepthCubeArray:
case ValidTextureOverload::kDimensionsStorageRO3d:
case ValidTextureOverload::kDimensionsStorageWO3d:
return R"(int3(texture_tint_0.get_width(), texture_tint_0.get_height(), texture_tint_0.get_depth()))";
return R"(int3(texture_tint_0.get_width(), texture_tint_0.get_height(), texture_tint_0.get_height()))";
case ValidTextureOverload::kDimensions2dLevel:
case ValidTextureOverload::kDimensions2dArrayLevel:
case ValidTextureOverload::kDimensionsDepth2dLevel:
case ValidTextureOverload::kDimensionsDepth2dArrayLevel:
return R"(int2(texture_tint_0.get_width(1), texture_tint_0.get_height(1)))";
case ValidTextureOverload::kDimensions3dLevel:
return R"(int3(texture_tint_0.get_width(1), texture_tint_0.get_height(1), texture_tint_0.get_depth(1)))";
case ValidTextureOverload::kDimensionsCubeLevel:
case ValidTextureOverload::kDimensionsCubeArrayLevel:
case ValidTextureOverload::kDimensionsDepthCubeLevel:
case ValidTextureOverload::kDimensionsDepthCubeArrayLevel:
return R"(int3(texture_tint_0.get_width(1), texture_tint_0.get_height(1), texture_tint_0.get_depth(1)))";
return R"(int3(texture_tint_0.get_width(1), texture_tint_0.get_height(1), texture_tint_0.get_height(1)))";
case ValidTextureOverload::kSample1dF32:
return R"(texture_tint_0.sample(sampler_tint_0, 1.0f))";
case ValidTextureOverload::kSample1dArrayF32:

99
src/writer/spirv/builder.cc
View File

@ -272,6 +272,14 @@ uint32_t intrinsic_to_glsl_method(ast::type::Type* type,
return 0;
}
/// @return the vector element type if ty is a vector, otherwise return ty.
ast::type::Type* ElementTypeOf(ast::type::Type* ty) {
if (auto* v = ty->As<ast::type::Vector>()) {
return v->type();
}
return ty;
}
} // namespace
Builder::AccessorInfo::AccessorInfo() : source_id(0), source_type(nullptr) {}
@ -1987,9 +1995,6 @@ bool Builder::GenerateTextureIntrinsic(ast::IdentifierExpression* ident,
ast::CallExpression* call,
Operand result_type,
Operand result_id) {
auto* texture_type =
call->params()[0]->result_type()->UnwrapAll()->As<ast::type::Texture>();
auto* sig = static_cast<const ast::intrinsic::TextureSignature*>(
ident->intrinsic_signature());
assert(sig != nullptr);
@ -1997,6 +2002,10 @@ bool Builder::GenerateTextureIntrinsic(ast::IdentifierExpression* ident,
auto const kNotUsed = ast::intrinsic::TextureSignature::Parameters::kNotUsed;
assert(pidx.texture != kNotUsed);
auto* texture_type = call->params()[pidx.texture]
->result_type()
->UnwrapAll()
->As<ast::type::Texture>();
auto op = spv::Op::OpNop;
@ -2070,50 +2079,76 @@ bool Builder::GenerateTextureIntrinsic(ast::IdentifierExpression* ident,
switch (ident->intrinsic()) {
case ast::Intrinsic::kTextureDimensions: {
if (ast::type::IsTextureArray(texture_type->dim())) {
// OpImageQuerySize[Lod] will append another element to the returned
// vector describing the number of array elements. textureDimensions()
// does not include this in the returned vector, so it needs to be
// stripped from the resulting vector.
auto unstripped_result = result_op();
// Number of returned elements from OpImageQuerySize[Lod] may not match
// those of textureDimensions().
// This might be due to an extra vector scalar describing the number of
// array elements or textureDimensions() returning a vec3 for cubes
// when only width / height is returned by OpImageQuerySize[Lod]
// (see https://github.com/gpuweb/gpuweb/issues/1345).
// Handle these mismatches by swizzling the returned vector.
std::vector<uint32_t> swizzle;
uint32_t spirv_dims = 0;
switch (texture_type->dim()) {
case ast::type::TextureDimension::kNone:
error_ = "texture dimension is kNone";
return false;
case ast::type::TextureDimension::k1d:
case ast::type::TextureDimension::k2d:
case ast::type::TextureDimension::k3d:
break; // No swizzle needed
case ast::type::TextureDimension::k1dArray:
swizzle = {0}; // Strip array index
spirv_dims = 2; // [width, array count]
break;
case ast::type::TextureDimension::kCube:
swizzle = {0, 1, 1}; // Duplicate height for depth
spirv_dims = 2; // [width, height]
break;
case ast::type::TextureDimension::k2dArray:
swizzle = {0, 1}; // Strip array index
spirv_dims = 3; // [width, height, array_count]
break;
case ast::type::TextureDimension::kCubeArray:
swizzle = {0, 1, 1}; // Strip array index, duplicate height for depth
spirv_dims = 3; // [width, height, array_count]
break;
}
ast::type::Type* unstripped_result_type;
if (auto* v = call->result_type()->As<ast::type::Vector>()) {
unstripped_result_type =
mod_->create<ast::type::Vector>(v->type(), v->size() + 1);
if (swizzle.empty()) {
append_result_type_and_id_to_spirv_params();
} else {
// Assign post_emission to swizzle the result of the call to
// OpImageQuerySize[Lod].
auto* element_type = ElementTypeOf(call->result_type());
auto spirv_result = result_op();
auto* spirv_result_type =
mod_->create<ast::type::Vector>(element_type, spirv_dims);
if (swizzle.size() > 1) {
post_emission = [=] {
// Swizzle the unstripped vector to form a vec2 or vec3
OperandList operands{
result_type,
result_id,
unstripped_result,
unstripped_result,
spirv_result,
spirv_result,
};
for (uint32_t i = 0; i < v->size(); i++) {
operands.emplace_back(Operand::Int(i));
for (auto idx : swizzle) {
operands.emplace_back(Operand::Int(idx));
}
return push_function_inst(spv::Op::OpVectorShuffle, operands);
};
} else {
unstripped_result_type =
mod_->create<ast::type::Vector>(call->result_type(), 2);
post_emission = [=] {
// Extract the first element of the unstripped vec2 to form a scalar
return push_function_inst(
spv::Op::OpCompositeExtract,
{result_type, result_id, unstripped_result, Operand::Int(0)});
return push_function_inst(spv::Op::OpCompositeExtract,
{result_type, result_id, spirv_result,
Operand::Int(swizzle[0])});
};
}
auto unstripped_result_type_id =
GenerateTypeIfNeeded(unstripped_result_type);
if (unstripped_result_type_id == 0) {
auto spirv_result_type_id = GenerateTypeIfNeeded(spirv_result_type);
if (spirv_result_type_id == 0) {
return false;
}
spirv_params.emplace_back(Operand::Int(unstripped_result_type_id));
spirv_params.emplace_back(unstripped_result);
} else {
append_result_type_and_id_to_spirv_params();
spirv_params.emplace_back(Operand::Int(spirv_result_type_id));
spirv_params.emplace_back(spirv_result);
}
spirv_params.emplace_back(gen_param(pidx.texture));

68
src/writer/spirv/builder_intrinsic_texture_test.cc
View File

@ -226,11 +226,13 @@ OpCapability ImageQuery
%5 = OpVariable %6 UniformConstant
%10 = OpTypeInt 32 1
%9 = OpTypeVector %10 3
%12 = OpConstant %10 0
%12 = OpTypeVector %10 2
%14 = OpConstant %10 0
)",
R"(
%11 = OpLoad %3 %1
%8 = OpImageQuerySizeLod %9 %11 %12
%13 = OpLoad %3 %1
%11 = OpImageQuerySizeLod %12 %13 %14
%8 = OpVectorShuffle %9 %11 %11 0 1 1
)",
R"(
OpCapability ImageQuery
@ -247,11 +249,13 @@ OpCapability ImageQuery
%5 = OpVariable %6 UniformConstant
%10 = OpTypeInt 32 1
%9 = OpTypeVector %10 3
%12 = OpConstant %10 1
%12 = OpTypeVector %10 2
%14 = OpConstant %10 1
)",
R"(
%11 = OpLoad %3 %1
%8 = OpImageQuerySizeLod %9 %11 %12
%13 = OpLoad %3 %1
%11 = OpImageQuerySizeLod %12 %13 %14
%8 = OpVectorShuffle %9 %11 %11 0 1 1
)",
R"(
OpCapability ImageQuery
@ -268,13 +272,12 @@ OpCapability ImageQuery
%5 = OpVariable %6 UniformConstant
%10 = OpTypeInt 32 1
%9 = OpTypeVector %10 3
%12 = OpTypeVector %10 4
%14 = OpConstant %10 0
%13 = OpConstant %10 0
)",
R"(
%13 = OpLoad %3 %1
%11 = OpImageQuerySizeLod %12 %13 %14
%8 = OpVectorShuffle %9 %11 %11 0 1 2
%12 = OpLoad %3 %1
%11 = OpImageQuerySizeLod %9 %12 %13
%8 = OpVectorShuffle %9 %11 %11 0 1 1
)",
R"(
OpCapability SampledCubeArray
@ -292,13 +295,12 @@ OpCapability ImageQuery
%5 = OpVariable %6 UniformConstant
%10 = OpTypeInt 32 1
%9 = OpTypeVector %10 3
%12 = OpTypeVector %10 4
%14 = OpConstant %10 1
%13 = OpConstant %10 1
)",
R"(
%13 = OpLoad %3 %1
%11 = OpImageQuerySizeLod %12 %13 %14
%8 = OpVectorShuffle %9 %11 %11 0 1 2
%12 = OpLoad %3 %1
%11 = OpImageQuerySizeLod %9 %12 %13
%8 = OpVectorShuffle %9 %11 %11 0 1 1
)",
R"(
OpCapability SampledCubeArray
@ -446,11 +448,13 @@ OpCapability ImageQuery
%5 = OpVariable %6 UniformConstant
%10 = OpTypeInt 32 1
%9 = OpTypeVector %10 3
%12 = OpConstant %10 0
%12 = OpTypeVector %10 2
%14 = OpConstant %10 0
)",
R"(
%11 = OpLoad %3 %1
%8 = OpImageQuerySizeLod %9 %11 %12
%13 = OpLoad %3 %1
%11 = OpImageQuerySizeLod %12 %13 %14
%8 = OpVectorShuffle %9 %11 %11 0 1 1
)",
R"(
OpCapability ImageQuery
@ -467,11 +471,13 @@ OpCapability ImageQuery
%5 = OpVariable %6 UniformConstant
%10 = OpTypeInt 32 1
%9 = OpTypeVector %10 3
%12 = OpConstant %10 1
%12 = OpTypeVector %10 2
%14 = OpConstant %10 1
)",
R"(
%11 = OpLoad %3 %1
%8 = OpImageQuerySizeLod %9 %11 %12
%13 = OpLoad %3 %1
%11 = OpImageQuerySizeLod %12 %13 %14
%8 = OpVectorShuffle %9 %11 %11 0 1 1
)",
R"(
OpCapability ImageQuery
@ -488,13 +494,12 @@ OpCapability ImageQuery
%5 = OpVariable %6 UniformConstant
%10 = OpTypeInt 32 1
%9 = OpTypeVector %10 3
%12 = OpTypeVector %10 4
%14 = OpConstant %10 0
%13 = OpConstant %10 0
)",
R"(
%13 = OpLoad %3 %1
%11 = OpImageQuerySizeLod %12 %13 %14
%8 = OpVectorShuffle %9 %11 %11 0 1 2
%12 = OpLoad %3 %1
%11 = OpImageQuerySizeLod %9 %12 %13
%8 = OpVectorShuffle %9 %11 %11 0 1 1
)",
R"(
OpCapability SampledCubeArray
@ -512,13 +517,12 @@ OpCapability ImageQuery
%5 = OpVariable %6 UniformConstant
%10 = OpTypeInt 32 1
%9 = OpTypeVector %10 3
%12 = OpTypeVector %10 4
%14 = OpConstant %10 1
%13 = OpConstant %10 1
)",
R"(
%13 = OpLoad %3 %1
%11 = OpImageQuerySizeLod %12 %13 %14
%8 = OpVectorShuffle %9 %11 %11 0 1 2
%12 = OpLoad %3 %1
%11 = OpImageQuerySizeLod %9 %12 %13
%8 = OpVectorShuffle %9 %11 %11 0 1 1
)",
R"(
OpCapability SampledCubeArray