xref: /foundation/graphic/graphic_3d/lume/LumeBinaryCompile/LumeShaderCompiler/src/default_limits.cpp

/*
 * Copyright (C) 2023 Huawei Device Co., Ltd.
 * 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.
 */

#include "default_limits.h"

#if GLSLANG_VERSION > GLSLANG_VERSION_11_0_0
#include <glslang/Public/ResourceLimits.h>
#else
#include <glslang/Include/ResourceLimits.h>
#endif
#include <glslang/Public/ShaderLang.h>

TBuiltInResource kGLSLangDefaultTResource = {
    /*.maxLights = */ 8,        // From OpenGL 3.0 table 6.46.
    /*.maxClipPlanes = */ 6,    // From OpenGL 3.0 table 6.46.
    /*.maxTextureUnits = */ 2,  // From OpenGL 3.0 table 6.50.
    /*.maxTextureCoords = */ 8, // From OpenGL 3.0 table 6.50.
    /*.maxVertexAttribs = */ 16,
    /*.maxVertexUniformComponents = */ 4096,
    /*.maxVaryingFloats = */ 60, // From OpenGLES 3.1 table 6.44.
    /*.maxVertexTextureImageUnits = */ 16,
    /*.maxCombinedTextureImageUnits = */ 80,
    /*.maxTextureImageUnits = */ 16,
    /*.maxFragmentUniformComponents = */ 1024,

    // glslang has 32 maxDrawBuffers.
    // Pixel phone Vulkan driver in Android N has 8
    // maxFragmentOutputAttachments.
    /*.maxDrawBuffers = */ 8,

    /*.maxVertexUniformVectors = */ 256,
    /*.maxVaryingVectors = */ 15,       // From OpenGLES 3.1 table 6.44.
    /*.maxFragmentUniformVectors = */ 256,
    /*.maxVertexOutputVectors = */ 16,  // maxVertexOutputComponents / 4
    /*.maxFragmentInputVectors = */ 15, // maxFragmentInputComponents / 4
    /*.minProgramTexelOffset = */ -8,
    /*.maxProgramTexelOffset = */ 7,
    /*.maxClipDistances = */ 8,
    /*.maxComputeWorkGroupCountX = */ 65535,
    /*.maxComputeWorkGroupCountY = */ 65535,
    /*.maxComputeWorkGroupCountZ = */ 65535,
    /*.maxComputeWorkGroupSizeX = */ 1024,
    /*.maxComputeWorkGroupSizeX = */ 1024,
    /*.maxComputeWorkGroupSizeZ = */ 64,
    /*.maxComputeUniformComponents = */ 512,
    /*.maxComputeTextureImageUnits = */ 16,
    /*.maxComputeImageUniforms = */ 8,
    /*.maxComputeAtomicCounters = */ 8,
    /*.maxComputeAtomicCounterBuffers = */ 1, // From OpenGLES 3.1 Table 6.43
    /*.maxVaryingComponents = */ 60,
    /*.maxVertexOutputComponents = */ 64,
    /*.maxGeometryInputComponents = */ 64,
    /*.maxGeometryOutputComponents = */ 128,
    /*.maxFragmentInputComponents = */ 128,
    /*.maxImageUnits = */ 8, // This does not seem to be defined anywhere,
                             // set to ImageUnits.
    /*.maxCombinedImageUnitsAndFragmentOutputs = */ 8,
    /*.maxCombinedShaderOutputResources = */ 8,
    /*.maxImageSamples = */ 0,
    /*.maxVertexImageUniforms = */ 0,
    /*.maxTessControlImageUniforms = */ 0,
    /*.maxTessEvaluationImageUniforms = */ 0,
    /*.maxGeometryImageUniforms = */ 0,
    /*.maxFragmentImageUniforms = */ 8,
    /*.maxCombinedImageUniforms = */ 8,
    /*.maxGeometryTextureImageUnits = */ 16,
    /*.maxGeometryOutputVertices = */ 256,
    /*.maxGeometryTotalOutputComponents = */ 1024,
    /*.maxGeometryUniformComponents = */ 512,
    /*.maxGeometryVaryingComponents = */ 60, // Does not seem to be defined
                                             // anywhere, set equal to
                                             // maxVaryingComponents.
    /*.maxTessControlInputComponents = */ 128,
    /*.maxTessControlOutputComponents = */ 128,
    /*.maxTessControlTextureImageUnits = */ 16,
    /*.maxTessControlUniformComponents = */ 1024,
    /*.maxTessControlTotalOutputComponents = */ 4096,
    /*.maxTessEvaluationInputComponents = */ 128,
    /*.maxTessEvaluationOutputComponents = */ 128,
    /*.maxTessEvaluationTextureImageUnits = */ 16,
    /*.maxTessEvaluationUniformComponents = */ 1024,
    /*.maxTessPatchComponents = */ 120,
    /*.maxPatchVertices = */ 32,
    /*.maxTessGenLevel = */ 64,
    /*.maxViewports = */ 16,
    /*.maxVertexAtomicCounters = */ 0,
    /*.maxTessControlAtomicCounters = */ 0,
    /*.maxTessEvaluationAtomicCounters = */ 0,
    /*.maxGeometryAtomicCounters = */ 0,
    /*.maxFragmentAtomicCounters = */ 8,
    /*.maxCombinedAtomicCounters = */ 8,
    /*.maxAtomicCounterBindings = */ 1,
    /*.maxVertexAtomicCounterBuffers = */ 0, // From OpenGLES 3.1 Table 6.41.

                                             // ARB_shader_atomic_counters.
    /*.maxTessControlAtomicCounterBuffers = */ 0,
    /*.maxTessEvaluationAtomicCounterBuffers = */ 0,
    /*.maxGeometryAtomicCounterBuffers = */ 0,
    // /ARB_shader_atomic_counters.

    /*.maxFragmentAtomicCounterBuffers = */ 0, // From OpenGLES 3.1 Table 6.43.
    /*.maxCombinedAtomicCounterBuffers = */ 1,
    /*.maxAtomicCounterBufferSize = */ 32,
    /*.maxTransformFeedbackBuffers = */ 4,
    /*.maxTransformFeedbackInterleavedComponents = */ 64,
    /*.maxCullDistances = */ 8,                // ARB_cull_distance.
    /*.maxCombinedClipAndCullDistances = */ 8, // ARB_cull_distance.
    /*.maxSamples = */ 4,
    /* .maxMeshOutputVerticesNV = */ 256,
    /* .maxMeshOutputPrimitivesNV = */ 512,
    /* .maxMeshWorkGroupSizeX_NV = */ 32,
    /* .maxMeshWorkGroupSizeY_NV = */ 1,
    /* .maxMeshWorkGroupSizeZ_NV = */ 1,
    /* .maxTaskWorkGroupSizeX_NV = */ 32,
    /* .maxTaskWorkGroupSizeY_NV = */ 1,
    /* .maxTaskWorkGroupSizeZ_NV = */ 1,
    /* .maxMeshViewCountNV = */ 4,
#if GLSLANG_VERSION > 110000
    /* .maxMeshOutputVerticesEXT = */ 256,
    /* .maxMeshOutputPrimitivesEXT = */ 256,
    /* .maxMeshWorkGroupSizeX_EXT = */ 128,
    /* .maxMeshWorkGroupSizeY_EXT = */ 128,
    /* .maxMeshWorkGroupSizeZ_EXT = */ 128,
    /* .maxTaskWorkGroupSizeX_EXT = */ 128,
    /* .maxTaskWorkGroupSizeY_EXT = */ 128,
    /* .maxTaskWorkGroupSizeZ_EXT = */ 128,
    /* .maxMeshViewCountEXT = */ 4,
#endif
    /* .maxDualSourceDrawBuffersEXT = */ 1,
    // This is the glslang TLimits structure.
    // It defines whether or not the following features are enabled.
    // We want them to all be enabled.z
    /*.limits = */
    {
        /*.nonInductiveForLoops = */ 1,
        /*.whileLoops = */ 1,
        /*.doWhileLoops = */ 1,
        /*.generalUniformIndexing = */ 1,
        /*.generalAttributeMatrixVectorIndexing = */ 1,
        /*.generalVaryingIndexing = */ 1,
        /*.generalSamplerIndexing = */ 1,
        /*.generalVariableIndexing = */ 1,
        /*.generalConstantMatrixVectorIndexing = */ 1,
    }
};