142 lines
7 KiB
C++
142 lines
7 KiB
C++
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/**************************************************************************/
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/* metal_device_properties.h */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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/**************************************************************************/
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/* */
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/* Portions of this code were derived from MoltenVK. */
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/* */
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/* Copyright (c) 2015-2023 The Brenwill Workshop Ltd. */
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/* (http://www.brenwill.com) */
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/* */
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/* Licensed under the Apache License, Version 2.0 (the "License"); */
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/* you may not use this file except in compliance with the License. */
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/* You may obtain a copy of the License at */
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/* */
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/* http://www.apache.org/licenses/LICENSE-2.0 */
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/* */
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/* Unless required by applicable law or agreed to in writing, software */
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/* distributed under the License is distributed on an "AS IS" BASIS, */
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/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or */
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/* implied. See the License for the specific language governing */
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/* permissions and limitations under the License. */
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/**************************************************************************/
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#ifndef METAL_DEVICE_PROPERTIES_H
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#define METAL_DEVICE_PROPERTIES_H
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#import "servers/rendering/rendering_device.h"
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#import <Foundation/Foundation.h>
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#import <Metal/Metal.h>
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/** The buffer index to use for vertex content. */
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const static uint32_t VERT_CONTENT_BUFFER_INDEX = 0;
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const static uint32_t MAX_COLOR_ATTACHMENT_COUNT = 8;
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typedef NS_OPTIONS(NSUInteger, SampleCount) {
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SampleCount1 = (1UL << 0),
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SampleCount2 = (1UL << 1),
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SampleCount4 = (1UL << 2),
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SampleCount8 = (1UL << 3),
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SampleCount16 = (1UL << 4),
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SampleCount32 = (1UL << 5),
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SampleCount64 = (1UL << 6),
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};
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struct API_AVAILABLE(macos(11.0), ios(14.0)) MetalFeatures {
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uint32_t mslVersion;
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MTLGPUFamily highestFamily;
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MTLLanguageVersion mslVersionEnum;
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SampleCount supportedSampleCounts;
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long hostMemoryPageSize;
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bool layeredRendering;
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bool multisampleLayeredRendering;
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bool quadPermute; /**< If true, quadgroup permutation functions (vote, ballot, shuffle) are supported in shaders. */
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bool simdPermute; /**< If true, SIMD-group permutation functions (vote, ballot, shuffle) are supported in shaders. */
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bool simdReduction; /**< If true, SIMD-group reduction functions (arithmetic) are supported in shaders. */
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bool tessellationShader; /**< If true, tessellation shaders are supported. */
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bool imageCubeArray; /**< If true, image cube arrays are supported. */
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};
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struct MetalLimits {
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uint64_t maxImageArrayLayers;
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uint64_t maxFramebufferHeight;
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uint64_t maxFramebufferWidth;
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uint64_t maxImageDimension1D;
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uint64_t maxImageDimension2D;
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uint64_t maxImageDimension3D;
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uint64_t maxImageDimensionCube;
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uint64_t maxViewportDimensionX;
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uint64_t maxViewportDimensionY;
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MTLSize maxThreadsPerThreadGroup;
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MTLSize maxComputeWorkGroupCount;
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uint64_t maxBoundDescriptorSets;
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uint64_t maxColorAttachments;
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uint64_t maxTexturesPerArgumentBuffer;
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uint64_t maxSamplersPerArgumentBuffer;
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uint64_t maxBuffersPerArgumentBuffer;
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uint64_t maxBufferLength;
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uint64_t minUniformBufferOffsetAlignment;
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uint64_t maxVertexDescriptorLayoutStride;
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uint16_t maxViewports;
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uint32_t maxPerStageBufferCount; /**< The total number of per-stage Metal buffers available for shader uniform content and attributes. */
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uint32_t maxPerStageTextureCount; /**< The total number of per-stage Metal textures available for shader uniform content. */
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uint32_t maxPerStageSamplerCount; /**< The total number of per-stage Metal samplers available for shader uniform content. */
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uint32_t maxVertexInputAttributes;
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uint32_t maxVertexInputBindings;
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uint32_t maxVertexInputBindingStride;
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uint32_t maxDrawIndexedIndexValue;
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uint32_t minSubgroupSize; /**< The minimum number of threads in a SIMD-group. */
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uint32_t maxSubgroupSize; /**< The maximum number of threads in a SIMD-group. */
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BitField<RDD::ShaderStage> subgroupSupportedShaderStages;
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BitField<RD::SubgroupOperations> subgroupSupportedOperations; /**< The subgroup operations supported by the device. */
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};
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class API_AVAILABLE(macos(11.0), ios(14.0)) MetalDeviceProperties {
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private:
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void init_features(id<MTLDevice> p_device);
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void init_limits(id<MTLDevice> p_device);
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public:
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MetalFeatures features;
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MetalLimits limits;
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SampleCount find_nearest_supported_sample_count(RenderingDevice::TextureSamples p_samples) const;
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MetalDeviceProperties(id<MTLDevice> p_device);
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~MetalDeviceProperties();
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private:
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static const SampleCount sample_count[RenderingDevice::TextureSamples::TEXTURE_SAMPLES_MAX];
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};
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#endif // METAL_DEVICE_PROPERTIES_H
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