328 lines
13 KiB
Plaintext
328 lines
13 KiB
Plaintext
/**************************************************************************/
|
|
/* metal_device_properties.mm */
|
|
/**************************************************************************/
|
|
/* This file is part of: */
|
|
/* GODOT ENGINE */
|
|
/* https://godotengine.org */
|
|
/**************************************************************************/
|
|
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
|
|
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
|
|
/* */
|
|
/* Permission is hereby granted, free of charge, to any person obtaining */
|
|
/* a copy of this software and associated documentation files (the */
|
|
/* "Software"), to deal in the Software without restriction, including */
|
|
/* without limitation the rights to use, copy, modify, merge, publish, */
|
|
/* distribute, sublicense, and/or sell copies of the Software, and to */
|
|
/* permit persons to whom the Software is furnished to do so, subject to */
|
|
/* the following conditions: */
|
|
/* */
|
|
/* The above copyright notice and this permission notice shall be */
|
|
/* included in all copies or substantial portions of the Software. */
|
|
/* */
|
|
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
|
|
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
|
|
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
|
|
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
|
|
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
|
|
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
|
|
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
|
|
/**************************************************************************/
|
|
|
|
/**************************************************************************/
|
|
/* */
|
|
/* Portions of this code were derived from MoltenVK. */
|
|
/* */
|
|
/* Copyright (c) 2015-2023 The Brenwill Workshop Ltd. */
|
|
/* (http://www.brenwill.com) */
|
|
/* */
|
|
/* Licensed under the Apache License, Version 2.0 (the "License"); */
|
|
/* you may not use this file except in compliance with the License. */
|
|
/* You may obtain a copy of the License at */
|
|
/* */
|
|
/* http://www.apache.org/licenses/LICENSE-2.0 */
|
|
/* */
|
|
/* Unless required by applicable law or agreed to in writing, software */
|
|
/* distributed under the License is distributed on an "AS IS" BASIS, */
|
|
/* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or */
|
|
/* implied. See the License for the specific language governing */
|
|
/* permissions and limitations under the License. */
|
|
/**************************************************************************/
|
|
|
|
#import "metal_device_properties.h"
|
|
|
|
#import <Metal/Metal.h>
|
|
#import <spirv_cross.hpp>
|
|
#import <spirv_msl.hpp>
|
|
|
|
// Common scaling multipliers.
|
|
#define KIBI (1024)
|
|
#define MEBI (KIBI * KIBI)
|
|
|
|
#if (TARGET_OS_OSX && __MAC_OS_X_VERSION_MAX_ALLOWED < 140000) || (TARGET_OS_IOS && __IPHONE_OS_VERSION_MAX_ALLOWED < 170000)
|
|
#define MTLGPUFamilyApple9 (MTLGPUFamily)1009
|
|
#endif
|
|
|
|
API_AVAILABLE(macos(11.0), ios(14.0))
|
|
MTLGPUFamily &operator--(MTLGPUFamily &p_family) {
|
|
p_family = static_cast<MTLGPUFamily>(static_cast<int>(p_family) - 1);
|
|
if (p_family < MTLGPUFamilyApple1) {
|
|
p_family = MTLGPUFamilyApple9;
|
|
}
|
|
|
|
return p_family;
|
|
}
|
|
|
|
void MetalDeviceProperties::init_features(id<MTLDevice> p_device) {
|
|
features = {};
|
|
|
|
features.highestFamily = MTLGPUFamilyApple1;
|
|
for (MTLGPUFamily family = MTLGPUFamilyApple9; family >= MTLGPUFamilyApple1; --family) {
|
|
if ([p_device supportsFamily:family]) {
|
|
features.highestFamily = family;
|
|
break;
|
|
}
|
|
}
|
|
|
|
features.hostMemoryPageSize = sysconf(_SC_PAGESIZE);
|
|
|
|
for (SampleCount sc = SampleCount1; sc <= SampleCount64; sc <<= 1) {
|
|
if ([p_device supportsTextureSampleCount:sc]) {
|
|
features.supportedSampleCounts |= sc;
|
|
}
|
|
}
|
|
|
|
features.layeredRendering = [p_device supportsFamily:MTLGPUFamilyApple5];
|
|
features.multisampleLayeredRendering = [p_device supportsFamily:MTLGPUFamilyApple7];
|
|
features.tessellationShader = [p_device supportsFamily:MTLGPUFamilyApple3];
|
|
features.imageCubeArray = [p_device supportsFamily:MTLGPUFamilyApple3];
|
|
features.quadPermute = [p_device supportsFamily:MTLGPUFamilyApple4];
|
|
features.simdPermute = [p_device supportsFamily:MTLGPUFamilyApple6];
|
|
features.simdReduction = [p_device supportsFamily:MTLGPUFamilyApple7];
|
|
|
|
MTLCompileOptions *opts = [MTLCompileOptions new];
|
|
features.mslVersionEnum = opts.languageVersion; // By default, Metal uses the most recent language version.
|
|
|
|
#define setMSLVersion(m_maj, m_min) \
|
|
features.mslVersion = SPIRV_CROSS_NAMESPACE::CompilerMSL::Options::make_msl_version(m_maj, m_min)
|
|
|
|
switch (features.mslVersionEnum) {
|
|
#if __MAC_OS_X_VERSION_MAX_ALLOWED >= 150000 || __IPHONE_OS_VERSION_MAX_ALLOWED >= 180000
|
|
case MTLLanguageVersion3_2:
|
|
setMSLVersion(3, 2);
|
|
break;
|
|
#endif
|
|
#if __MAC_OS_X_VERSION_MAX_ALLOWED >= 140000 || __IPHONE_OS_VERSION_MAX_ALLOWED >= 170000
|
|
case MTLLanguageVersion3_1:
|
|
setMSLVersion(3, 1);
|
|
break;
|
|
#endif
|
|
case MTLLanguageVersion3_0:
|
|
setMSLVersion(3, 0);
|
|
break;
|
|
case MTLLanguageVersion2_4:
|
|
setMSLVersion(2, 4);
|
|
break;
|
|
case MTLLanguageVersion2_3:
|
|
setMSLVersion(2, 3);
|
|
break;
|
|
case MTLLanguageVersion2_2:
|
|
setMSLVersion(2, 2);
|
|
break;
|
|
case MTLLanguageVersion2_1:
|
|
setMSLVersion(2, 1);
|
|
break;
|
|
case MTLLanguageVersion2_0:
|
|
setMSLVersion(2, 0);
|
|
break;
|
|
case MTLLanguageVersion1_2:
|
|
setMSLVersion(1, 2);
|
|
break;
|
|
case MTLLanguageVersion1_1:
|
|
setMSLVersion(1, 1);
|
|
break;
|
|
#if TARGET_OS_IPHONE && !TARGET_OS_MACCATALYST
|
|
case MTLLanguageVersion1_0:
|
|
setMSLVersion(1, 0);
|
|
break;
|
|
#endif
|
|
}
|
|
}
|
|
|
|
void MetalDeviceProperties::init_limits(id<MTLDevice> p_device) {
|
|
using std::max;
|
|
using std::min;
|
|
|
|
// FST: https://developer.apple.com/metal/Metal-Feature-Set-Tables.pdf
|
|
|
|
// FST: Maximum number of layers per 1D texture array, 2D texture array, or 3D texture.
|
|
limits.maxImageArrayLayers = 2048;
|
|
if ([p_device supportsFamily:MTLGPUFamilyApple3]) {
|
|
// FST: Maximum 2D texture width and height.
|
|
limits.maxFramebufferWidth = 16384;
|
|
limits.maxFramebufferHeight = 16384;
|
|
limits.maxViewportDimensionX = 16384;
|
|
limits.maxViewportDimensionY = 16384;
|
|
// FST: Maximum 1D texture width.
|
|
limits.maxImageDimension1D = 16384;
|
|
// FST: Maximum 2D texture width and height.
|
|
limits.maxImageDimension2D = 16384;
|
|
// FST: Maximum cube map texture width and height.
|
|
limits.maxImageDimensionCube = 16384;
|
|
} else {
|
|
// FST: Maximum 2D texture width and height.
|
|
limits.maxFramebufferWidth = 8192;
|
|
limits.maxFramebufferHeight = 8192;
|
|
limits.maxViewportDimensionX = 8192;
|
|
limits.maxViewportDimensionY = 8192;
|
|
// FST: Maximum 1D texture width.
|
|
limits.maxImageDimension1D = 8192;
|
|
// FST: Maximum 2D texture width and height.
|
|
limits.maxImageDimension2D = 8192;
|
|
// FST: Maximum cube map texture width and height.
|
|
limits.maxImageDimensionCube = 8192;
|
|
}
|
|
// FST: Maximum 3D texture width, height, and depth.
|
|
limits.maxImageDimension3D = 2048;
|
|
|
|
limits.maxThreadsPerThreadGroup = p_device.maxThreadsPerThreadgroup;
|
|
// No effective limits.
|
|
limits.maxComputeWorkGroupCount = { std::numeric_limits<uint32_t>::max(), std::numeric_limits<uint32_t>::max(), std::numeric_limits<uint32_t>::max() };
|
|
// https://github.com/KhronosGroup/MoltenVK/blob/568cc3acc0e2299931fdaecaaa1fc3ec5b4af281/MoltenVK/MoltenVK/GPUObjects/MVKDevice.h#L85
|
|
limits.maxBoundDescriptorSets = SPIRV_CROSS_NAMESPACE::kMaxArgumentBuffers;
|
|
// FST: Maximum number of color render targets per render pass descriptor.
|
|
limits.maxColorAttachments = 8;
|
|
|
|
// Maximum number of textures the device can access, per stage, from an argument buffer.
|
|
if ([p_device supportsFamily:MTLGPUFamilyApple6]) {
|
|
limits.maxTexturesPerArgumentBuffer = 1'000'000;
|
|
} else if ([p_device supportsFamily:MTLGPUFamilyApple4]) {
|
|
limits.maxTexturesPerArgumentBuffer = 96;
|
|
} else {
|
|
limits.maxTexturesPerArgumentBuffer = 31;
|
|
}
|
|
|
|
// Maximum number of samplers the device can access, per stage, from an argument buffer.
|
|
if ([p_device supportsFamily:MTLGPUFamilyApple6]) {
|
|
limits.maxSamplersPerArgumentBuffer = 1024;
|
|
} else {
|
|
limits.maxSamplersPerArgumentBuffer = 16;
|
|
}
|
|
|
|
// Maximum number of buffers the device can access, per stage, from an argument buffer.
|
|
if ([p_device supportsFamily:MTLGPUFamilyApple6]) {
|
|
limits.maxBuffersPerArgumentBuffer = std::numeric_limits<uint64_t>::max();
|
|
} else if ([p_device supportsFamily:MTLGPUFamilyApple4]) {
|
|
limits.maxBuffersPerArgumentBuffer = 96;
|
|
} else {
|
|
limits.maxBuffersPerArgumentBuffer = 31;
|
|
}
|
|
|
|
limits.minSubgroupSize = limits.maxSubgroupSize = 1;
|
|
// These values were taken from MoltenVK.
|
|
if (features.simdPermute) {
|
|
limits.minSubgroupSize = 4;
|
|
limits.maxSubgroupSize = 32;
|
|
} else if (features.quadPermute) {
|
|
limits.minSubgroupSize = limits.maxSubgroupSize = 4;
|
|
}
|
|
|
|
limits.subgroupSupportedShaderStages.set_flag(RDD::ShaderStage::SHADER_STAGE_COMPUTE_BIT);
|
|
if (features.tessellationShader) {
|
|
limits.subgroupSupportedShaderStages.set_flag(RDD::ShaderStage::SHADER_STAGE_TESSELATION_CONTROL_BIT);
|
|
}
|
|
limits.subgroupSupportedShaderStages.set_flag(RDD::ShaderStage::SHADER_STAGE_FRAGMENT_BIT);
|
|
|
|
limits.subgroupSupportedOperations.set_flag(RD::SubgroupOperations::SUBGROUP_BASIC_BIT);
|
|
if (features.simdPermute || features.quadPermute) {
|
|
limits.subgroupSupportedOperations.set_flag(RD::SubgroupOperations::SUBGROUP_VOTE_BIT);
|
|
limits.subgroupSupportedOperations.set_flag(RD::SubgroupOperations::SUBGROUP_BALLOT_BIT);
|
|
limits.subgroupSupportedOperations.set_flag(RD::SubgroupOperations::SUBGROUP_SHUFFLE_BIT);
|
|
limits.subgroupSupportedOperations.set_flag(RD::SubgroupOperations::SUBGROUP_SHUFFLE_RELATIVE_BIT);
|
|
}
|
|
|
|
if (features.simdReduction) {
|
|
limits.subgroupSupportedOperations.set_flag(RD::SubgroupOperations::SUBGROUP_ARITHMETIC_BIT);
|
|
}
|
|
|
|
if (features.quadPermute) {
|
|
limits.subgroupSupportedOperations.set_flag(RD::SubgroupOperations::SUBGROUP_QUAD_BIT);
|
|
}
|
|
|
|
limits.maxBufferLength = p_device.maxBufferLength;
|
|
|
|
// FST: Maximum size of vertex descriptor layout stride.
|
|
limits.maxVertexDescriptorLayoutStride = std::numeric_limits<uint64_t>::max();
|
|
|
|
// Maximum number of viewports.
|
|
if ([p_device supportsFamily:MTLGPUFamilyApple5]) {
|
|
limits.maxViewports = 16;
|
|
} else {
|
|
limits.maxViewports = 1;
|
|
}
|
|
|
|
limits.maxPerStageBufferCount = 31;
|
|
limits.maxPerStageSamplerCount = 16;
|
|
if ([p_device supportsFamily:MTLGPUFamilyApple6]) {
|
|
limits.maxPerStageTextureCount = 128;
|
|
} else if ([p_device supportsFamily:MTLGPUFamilyApple4]) {
|
|
limits.maxPerStageTextureCount = 96;
|
|
} else {
|
|
limits.maxPerStageTextureCount = 31;
|
|
}
|
|
|
|
limits.maxVertexInputAttributes = 31;
|
|
limits.maxVertexInputBindings = 31;
|
|
limits.maxVertexInputBindingStride = (2 * KIBI);
|
|
|
|
#if TARGET_OS_IOS && !TARGET_OS_MACCATALYST
|
|
limits.minUniformBufferOffsetAlignment = 64;
|
|
#endif
|
|
|
|
#if TARGET_OS_OSX
|
|
// This is Apple Silicon specific.
|
|
limits.minUniformBufferOffsetAlignment = 16;
|
|
#endif
|
|
|
|
limits.maxDrawIndexedIndexValue = std::numeric_limits<uint32_t>::max() - 1;
|
|
}
|
|
|
|
MetalDeviceProperties::MetalDeviceProperties(id<MTLDevice> p_device) {
|
|
init_features(p_device);
|
|
init_limits(p_device);
|
|
}
|
|
|
|
MetalDeviceProperties::~MetalDeviceProperties() {
|
|
}
|
|
|
|
SampleCount MetalDeviceProperties::find_nearest_supported_sample_count(RenderingDevice::TextureSamples p_samples) const {
|
|
SampleCount supported = features.supportedSampleCounts;
|
|
if (supported & sample_count[p_samples]) {
|
|
return sample_count[p_samples];
|
|
}
|
|
|
|
SampleCount requested_sample_count = sample_count[p_samples];
|
|
// Find the nearest supported sample count.
|
|
while (requested_sample_count > SampleCount1) {
|
|
if (supported & requested_sample_count) {
|
|
return requested_sample_count;
|
|
}
|
|
requested_sample_count = (SampleCount)(requested_sample_count >> 1);
|
|
}
|
|
|
|
return SampleCount1;
|
|
}
|
|
|
|
// region static members
|
|
|
|
const SampleCount MetalDeviceProperties::sample_count[RenderingDevice::TextureSamples::TEXTURE_SAMPLES_MAX] = {
|
|
SampleCount1,
|
|
SampleCount2,
|
|
SampleCount4,
|
|
SampleCount8,
|
|
SampleCount16,
|
|
SampleCount32,
|
|
SampleCount64,
|
|
};
|
|
|
|
// endregion
|