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// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "third_party/blink/renderer/modules/webgpu/gpu_supported_limits.h"
#include <algorithm>
#include "base/numerics/checked_math.h"
#include "third_party/blink/renderer/bindings/core/v8/v8_union_undefined_unsignedlonglongenforcerange.h"
#include "third_party/blink/renderer/bindings/modules/v8/v8_gpu_extent_3d_dict.h"
#include "third_party/blink/renderer/core/dom/dom_exception.h"
#include "third_party/blink/renderer/core/execution_context/execution_context.h"
#include "third_party/blink/renderer/core/inspector/console_message.h"
#define SUPPORTED_LIMITS(X) \
X(maxTextureDimension1D) \
X(maxTextureDimension2D) \
X(maxTextureDimension3D) \
X(maxTextureArrayLayers) \
X(maxBindGroups) \
X(maxBindGroupsPlusVertexBuffers) \
X(maxBindingsPerBindGroup) \
X(maxDynamicUniformBuffersPerPipelineLayout) \
X(maxDynamicStorageBuffersPerPipelineLayout) \
X(maxSampledTexturesPerShaderStage) \
X(maxSamplersPerShaderStage) \
X(maxStorageBuffersPerShaderStage) \
X(maxStorageTexturesPerShaderStage) \
X(maxUniformBuffersPerShaderStage) \
X(maxUniformBufferBindingSize) \
X(maxStorageBufferBindingSize) \
X(minUniformBufferOffsetAlignment) \
X(minStorageBufferOffsetAlignment) \
X(maxVertexBuffers) \
X(maxBufferSize) \
X(maxVertexAttributes) \
X(maxVertexBufferArrayStride) \
X(maxInterStageShaderVariables) \
X(maxColorAttachments) \
X(maxColorAttachmentBytesPerSample) \
X(maxComputeWorkgroupStorageSize) \
X(maxComputeInvocationsPerWorkgroup) \
X(maxComputeWorkgroupSizeX) \
X(maxComputeWorkgroupSizeY) \
X(maxComputeWorkgroupSizeZ) \
X(maxComputeWorkgroupsPerDimension) \
X(maxStorageBuffersInFragmentStage) \
X(maxStorageTexturesInFragmentStage) \
X(maxStorageBuffersInVertexStage) \
X(maxStorageTexturesInVertexStage)
namespace blink {
namespace {
template <typename T>
constexpr T UndefinedLimitValue();
template <>
constexpr uint32_t UndefinedLimitValue<uint32_t>() {
return wgpu::kLimitU32Undefined;
}
template <>
constexpr uint64_t UndefinedLimitValue<uint64_t>() {
return wgpu::kLimitU64Undefined;
}
} // namespace
// GPUSupportedLimits
GPUSupportedLimits::GPUSupportedLimits(const ComboLimits& limits) {
limits.UnlinkedCopyTo(&limits_);
}
// static
bool GPUSupportedLimits::Populate(
ComboLimits* out,
const HeapVector<
std::pair<String,
Member<V8UnionUndefinedOrUnsignedLongLongEnforceRange>>>& in,
ScriptPromiseResolverBase* resolver) {
auto* context = resolver->GetExecutionContext();
// TODO(crbug.com/dawn/685): This loop is O(n^2) if the developer
// passes all of the limits. It could be O(n) with a mapping of
// String -> wgpu::Limits::*member.
for (const auto& [limitName, limitRawValue] : in) {
#define X(name) \
if (limitName == #name) { \
using T = decltype(GPUSupportedLimits::ComboLimits::name); \
if (limitRawValue->IsUndefined()) { \
continue; \
} \
uint64_t limitRawIntegerValue = \
limitRawValue->GetAsUnsignedLongLongEnforceRange(); \
base::CheckedNumeric<T> value{limitRawIntegerValue}; \
if (!value.IsValid() || value.ValueOrDie() == UndefinedLimitValue<T>()) { \
resolver->RejectWithDOMException( \
DOMExceptionCode::kOperationError, \
"Required " #name " limit (" + \
String::Number(limitRawIntegerValue) + \
") exceeds the maximum representable value for its type."); \
return false; \
} \
out->name = value.ValueOrDie(); \
continue; \
}
SUPPORTED_LIMITS(X)
#undef X
if (limitRawValue->IsUndefined()) {
auto* console_message = MakeGarbageCollected<ConsoleMessage>(
mojom::blink::ConsoleMessageSource::kRendering,
mojom::blink::ConsoleMessageLevel::kWarning,
"The limit \"" + limitName + "\" is not recognized.");
context->AddConsoleMessage(console_message);
} else {
resolver->RejectWithDOMException(
DOMExceptionCode::kOperationError,
"The limit \"" + limitName +
"\" with a non-undefined value is not recognized.");
return false;
}
}
return true;
}
#define X(name) \
decltype(GPUSupportedLimits::ComboLimits::name) GPUSupportedLimits::name() \
const { \
return limits_.name; \
}
SUPPORTED_LIMITS(X)
#undef X
// GPUSupportedLimits::ComboLimits
GPUSupportedLimits::ComboLimits::ComboLimits() = default;
void GPUSupportedLimits::ComboLimits::UnlinkedCopyTo(
GPUSupportedLimits::ComboLimits* o) const {
*static_cast<wgpu::Limits*>(o) = *this;
o->wgpu::Limits::nextInChain = nullptr;
#ifdef WGPU_BREAKING_CHANGE_COMPATIBILITY_MODE_LIMITS
*static_cast<wgpu::CompatibilityModeLimits*>(o) = *this;
o->wgpu::CompatibilityModeLimits::nextInChain = nullptr;
#endif
}
wgpu::Limits* GPUSupportedLimits::ComboLimits::GetLinked() {
#ifdef WGPU_BREAKING_CHANGE_COMPATIBILITY_MODE_LIMITS
this->wgpu::Limits::nextInChain =
static_cast<wgpu::CompatibilityModeLimits*>(this);
this->wgpu::CompatibilityModeLimits::nextInChain = nullptr;
#else
this->wgpu::Limits::nextInChain = nullptr;
#endif
return this;
}
} // namespace blink
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