fbf2af58a0
All external library header references consistently include framework references. Cleanup references to external library headers that are no longer required. Simplify and consolidate external library header paths in Xcode projects. Add MVK_EXCLUDE_SPIRV_TOOLS build option to avoid use of SPIRV-Tools library. Remove all other references to headers within SPIRV-Tools library.
82 lines
3.0 KiB
C++
82 lines
3.0 KiB
C++
/*
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* SPIRVReflection.h
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*
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* Copyright (c) 2019 Chip Davis for Codeweavers
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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 implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#ifndef __SPIRVReflection_h_
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#define __SPIRVReflection_h_ 1
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#include <SPIRV-Cross/spirv.hpp>
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#include <SPIRV-Cross/spirv_common.hpp>
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#include <string>
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#include <vector>
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namespace mvk {
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#pragma mark -
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#pragma mark SPIRVTessReflectionData
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/** Reflection data for a pair of tessellation shaders. This contains the information needed to construct a tessellation pipeline. */
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struct SPIRVTessReflectionData {
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/** The partition mode, one of SpacingEqual, SpacingFractionalEven, or SpacingFractionalOdd. */
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spv::ExecutionMode partitionMode = spv::ExecutionModeMax;
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/** The winding order of generated triangles, one of VertexOrderCw or VertexOrderCcw. */
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spv::ExecutionMode windingOrder = spv::ExecutionModeMax;
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/** Whether or not tessellation should produce points instead of lines or triangles. */
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bool pointMode = false;
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/** The kind of patch expected as input, one of Triangles, Quads, or Isolines. */
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spv::ExecutionMode patchKind = spv::ExecutionModeMax;
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/** The number of control points output by the tessellation control shader. */
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uint32_t numControlPoints = 0;
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};
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#pragma mark -
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#pragma mark SPIRVShaderOutputData
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/** Reflection data on a single output of a shader. This contains the information needed to construct a stage-input descriptor for the next stage of a pipeline. */
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struct SPIRVShaderOutput {
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/** The type of the output. */
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SPIRV_CROSS_NAMESPACE::SPIRType::BaseType baseType;
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/** The vector size, if a vector. */
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uint32_t vecWidth;
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/** The location number of the output. */
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uint32_t location;
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/** Whether this is a per-patch or per-vertex output. Only meaningful for tessellation control shaders. */
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bool perPatch;
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/** If this is a builtin, the kind of builtin this is. */
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spv::BuiltIn builtin;
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};
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#pragma mark -
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#pragma mark Functions
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/** Given a tessellation control shader and a tessellation evaluation shader, both in SPIR-V format, returns tessellation reflection data. */
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bool getTessReflectionData(const std::vector<uint32_t>& tesc, const std::string& tescEntryName, const std::vector<uint32_t>& tese, const std::string& teseEntryName, SPIRVTessReflectionData& reflectData, std::string& errorLog);
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/** Given a shader in SPIR-V format, returns output reflection data. */
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bool getShaderOutputs(const std::vector<uint32_t>& spirv, spv::ExecutionModel model, const std::string& entryName, std::vector<SPIRVShaderOutput>& outputs, std::string& errorLog);
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}
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#endif
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