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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "SupportedLimits.h"
#include "Adapter.h"
#include "mozilla/dom/WebGPUBinding.h"
namespace mozilla::webgpu {
GPU_IMPL_CYCLE_COLLECTION(SupportedLimits, mParent)
GPU_IMPL_JS_WRAP(SupportedLimits)
SupportedLimits::SupportedLimits(Adapter* const aParent,
const ffi::WGPULimits& aLimits)
: ChildOf(aParent), mFfi(std::make_unique<ffi::WGPULimits>(aLimits)) {}
SupportedLimits::~SupportedLimits() = default;
uint64_t GetLimit(const ffi::WGPULimits& limits, const Limit limit) {
switch (limit) {
case Limit::MaxTextureDimension1D:
return limits.max_texture_dimension_1d;
case Limit::MaxTextureDimension2D:
return limits.max_texture_dimension_2d;
case Limit::MaxTextureDimension3D:
return limits.max_texture_dimension_3d;
case Limit::MaxTextureArrayLayers:
return limits.max_texture_array_layers;
case Limit::MaxBindGroups:
return limits.max_bind_groups;
case Limit::MaxBindGroupsPlusVertexBuffers:
// Not in ffi::WGPULimits, so synthesize:
return GetLimit(limits, Limit::MaxBindGroups) +
GetLimit(limits, Limit::MaxVertexBuffers);
case Limit::MaxBindingsPerBindGroup:
return limits.max_bindings_per_bind_group;
case Limit::MaxDynamicUniformBuffersPerPipelineLayout:
return limits.max_dynamic_uniform_buffers_per_pipeline_layout;
case Limit::MaxDynamicStorageBuffersPerPipelineLayout:
return limits.max_dynamic_storage_buffers_per_pipeline_layout;
case Limit::MaxSampledTexturesPerShaderStage:
return limits.max_sampled_textures_per_shader_stage;
case Limit::MaxSamplersPerShaderStage:
return limits.max_samplers_per_shader_stage;
case Limit::MaxStorageBuffersPerShaderStage:
return limits.max_storage_buffers_per_shader_stage;
case Limit::MaxStorageTexturesPerShaderStage:
return limits.max_storage_textures_per_shader_stage;
case Limit::MaxUniformBuffersPerShaderStage:
return limits.max_uniform_buffers_per_shader_stage;
case Limit::MaxUniformBufferBindingSize:
return limits.max_uniform_buffer_binding_size;
case Limit::MaxStorageBufferBindingSize:
return limits.max_storage_buffer_binding_size;
case Limit::MinUniformBufferOffsetAlignment:
return limits.min_uniform_buffer_offset_alignment;
case Limit::MinStorageBufferOffsetAlignment:
return limits.min_storage_buffer_offset_alignment;
case Limit::MaxVertexBuffers:
return limits.max_vertex_buffers;
case Limit::MaxBufferSize:
return limits.max_buffer_size;
case Limit::MaxVertexAttributes:
return limits.max_vertex_attributes;
case Limit::MaxVertexBufferArrayStride:
return limits.max_vertex_buffer_array_stride;
case Limit::MaxInterStageShaderVariables:
return 16; // From the spec. (not in ffi::WGPULimits)
case Limit::MaxColorAttachments:
return 8; // From the spec. (not in ffi::WGPULimits)
case Limit::MaxColorAttachmentBytesPerSample:
return 32; // From the spec. (not in ffi::WGPULimits)
case Limit::MaxComputeWorkgroupStorageSize:
return limits.max_compute_workgroup_storage_size;
case Limit::MaxComputeInvocationsPerWorkgroup:
return limits.max_compute_invocations_per_workgroup;
case Limit::MaxComputeWorkgroupSizeX:
return limits.max_compute_workgroup_size_x;
case Limit::MaxComputeWorkgroupSizeY:
return limits.max_compute_workgroup_size_y;
case Limit::MaxComputeWorkgroupSizeZ:
return limits.max_compute_workgroup_size_z;
case Limit::MaxComputeWorkgroupsPerDimension:
return limits.max_compute_workgroups_per_dimension;
}
MOZ_CRASH("Bad Limit");
}
void SetLimit(ffi::WGPULimits* const limits, const Limit limit,
const double val) {
const auto autoVal = LazyAssertedCast(static_cast<uint64_t>(val));
switch (limit) {
case Limit::MaxTextureDimension1D:
limits->max_texture_dimension_1d = autoVal;
return;
case Limit::MaxTextureDimension2D:
limits->max_texture_dimension_2d = autoVal;
return;
case Limit::MaxTextureDimension3D:
limits->max_texture_dimension_3d = autoVal;
return;
case Limit::MaxTextureArrayLayers:
limits->max_texture_array_layers = autoVal;
return;
case Limit::MaxBindGroups:
limits->max_bind_groups = autoVal;
return;
case Limit::MaxBindGroupsPlusVertexBuffers:
// Not in ffi::WGPULimits, and we're allowed to give back better
// limits than requested.
return;
case Limit::MaxBindingsPerBindGroup:
limits->max_bindings_per_bind_group = autoVal;
return;
case Limit::MaxDynamicUniformBuffersPerPipelineLayout:
limits->max_dynamic_uniform_buffers_per_pipeline_layout = autoVal;
return;
case Limit::MaxDynamicStorageBuffersPerPipelineLayout:
limits->max_dynamic_storage_buffers_per_pipeline_layout = autoVal;
return;
case Limit::MaxSampledTexturesPerShaderStage:
limits->max_sampled_textures_per_shader_stage = autoVal;
return;
case Limit::MaxSamplersPerShaderStage:
limits->max_samplers_per_shader_stage = autoVal;
return;
case Limit::MaxStorageBuffersPerShaderStage:
limits->max_storage_buffers_per_shader_stage = autoVal;
return;
case Limit::MaxStorageTexturesPerShaderStage:
limits->max_storage_textures_per_shader_stage = autoVal;
return;
case Limit::MaxUniformBuffersPerShaderStage:
limits->max_uniform_buffers_per_shader_stage = autoVal;
return;
case Limit::MaxUniformBufferBindingSize:
limits->max_uniform_buffer_binding_size = autoVal;
return;
case Limit::MaxStorageBufferBindingSize:
limits->max_storage_buffer_binding_size = autoVal;
return;
case Limit::MinUniformBufferOffsetAlignment:
limits->min_uniform_buffer_offset_alignment = autoVal;
return;
case Limit::MinStorageBufferOffsetAlignment:
limits->min_storage_buffer_offset_alignment = autoVal;
return;
case Limit::MaxVertexBuffers:
limits->max_vertex_buffers = autoVal;
return;
case Limit::MaxBufferSize:
limits->max_buffer_size = autoVal;
return;
case Limit::MaxVertexAttributes:
limits->max_vertex_attributes = autoVal;
return;
case Limit::MaxVertexBufferArrayStride:
limits->max_vertex_buffer_array_stride = autoVal;
return;
case Limit::MaxInterStageShaderVariables:
// Not in ffi::WGPULimits, and we're allowed to give back better
// limits than requested.
return;
case Limit::MaxColorAttachments:
// Not in ffi::WGPULimits, and we're allowed to give back better
// limits than requested.
return;
case Limit::MaxColorAttachmentBytesPerSample:
// Not in ffi::WGPULimits, and we're allowed to give back better
// limits than requested.
return;
case Limit::MaxComputeWorkgroupStorageSize:
limits->max_compute_workgroup_storage_size = autoVal;
return;
case Limit::MaxComputeInvocationsPerWorkgroup:
limits->max_compute_invocations_per_workgroup = autoVal;
return;
case Limit::MaxComputeWorkgroupSizeX:
limits->max_compute_workgroup_size_x = autoVal;
return;
case Limit::MaxComputeWorkgroupSizeY:
limits->max_compute_workgroup_size_y = autoVal;
return;
case Limit::MaxComputeWorkgroupSizeZ:
limits->max_compute_workgroup_size_z = autoVal;
return;
case Limit::MaxComputeWorkgroupsPerDimension:
limits->max_compute_workgroups_per_dimension = autoVal;
return;
}
MOZ_CRASH("Bad Limit");
}
} // namespace mozilla::webgpu
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