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/*
* Copyright (c) 2023-2025 Valve Corporation
* Copyright (c) 2023-2025 LunarG, Inc.
*
* 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
*/
#include "../framework/layer_validation_tests.h"
#include "../framework/pipeline_helper.h"
#include "shader_helper.h"
#include "shader_templates.h"
class PositiveShaderMesh : public VkLayerTest {};
TEST_F(PositiveShaderMesh, MeshShaderPayloadMemoryOverLimit) {
TEST_DESCRIPTION("Validate Mesh shader shared memory limit");
SetTargetApiVersion(VK_API_VERSION_1_2);
AddRequiredExtensions(VK_EXT_MESH_SHADER_EXTENSION_NAME);
AddRequiredFeature(vkt::Feature::taskShader);
AddRequiredFeature(vkt::Feature::meshShader);
RETURN_IF_SKIP(Init());
InitRenderTarget();
if (!IsPlatformMockICD()) {
GTEST_SKIP() << "Hard to get limit tests to work everywhere without being too complex";
}
VkPhysicalDeviceMeshShaderPropertiesEXT mesh_shader_properties = vku::InitStructHelper();
GetPhysicalDeviceProperties2(mesh_shader_properties);
const uint32_t max_mesh_payload_and_shared_memory_size = mesh_shader_properties.maxMeshPayloadAndSharedMemorySize;
const uint32_t max_mesh_payload_and_shared_ints = max_mesh_payload_and_shared_memory_size / 4;
std::ostringstream task_source;
task_source << R"glsl(
#version 460
#extension GL_EXT_mesh_shader : require
struct Task {
uint baseID[)glsl";
task_source << (max_mesh_payload_and_shared_ints / 2);
task_source << R"glsl(];
};
taskPayloadSharedEXT Task IN;
void main(){
IN.baseID[0] = 0;
EmitMeshTasksEXT(1u, 1u, 1u);
}
)glsl";
std::ostringstream mesh_source;
mesh_source << R"glsl(
#version 460
#extension GL_EXT_mesh_shader : require
layout(max_vertices = 3, max_primitives=1) out;
layout(triangles) out;
struct Task {
uint baseID[)glsl";
mesh_source << (max_mesh_payload_and_shared_ints / 2);
mesh_source << R"glsl(];
};
taskPayloadSharedEXT Task IN;
shared int a[)glsl";
mesh_source << (max_mesh_payload_and_shared_ints / 2);
mesh_source << R"glsl(];
void main(){}
)glsl";
VkShaderObj task(*m_device, task_source.str().c_str(), VK_SHADER_STAGE_TASK_BIT_EXT, SPV_ENV_VULKAN_1_2);
VkShaderObj mesh(*m_device, mesh_source.str().c_str(), VK_SHADER_STAGE_MESH_BIT_EXT, SPV_ENV_VULKAN_1_2);
const auto set_info = [&](CreatePipelineHelper &helper) {
helper.shader_stages_ = {task.GetStageCreateInfo(), mesh.GetStageCreateInfo()};
};
CreatePipelineHelper::OneshotTest(*this, set_info, kErrorBit);
}
TEST_F(PositiveShaderMesh, MeshShaderPayloadSpecConstantSet) {
TEST_DESCRIPTION("Validate Mesh shader shared memory limit");
SetTargetApiVersion(VK_API_VERSION_1_2);
AddRequiredExtensions(VK_EXT_MESH_SHADER_EXTENSION_NAME);
AddRequiredFeature(vkt::Feature::taskShader);
AddRequiredFeature(vkt::Feature::meshShader);
RETURN_IF_SKIP(Init());
InitRenderTarget();
if (!IsPlatformMockICD()) {
GTEST_SKIP() << "Hard to get limit tests to work everywhere without being too complex";
}
VkPhysicalDeviceMeshShaderPropertiesEXT mesh_shader_properties = vku::InitStructHelper();
GetPhysicalDeviceProperties2(mesh_shader_properties);
const uint32_t max_mesh_payload_and_shared_memory_size = mesh_shader_properties.maxMeshPayloadAndSharedMemorySize;
const uint32_t max_mesh_payload_and_shared_ints = max_mesh_payload_and_shared_memory_size / 4;
const char *task_source = R"glsl(
#version 460
#extension GL_EXT_mesh_shader : require
layout(constant_id = 0) const int SIZE = 64;
struct Task {
uint baseID[SIZE];
};
taskPayloadSharedEXT Task IN;
void main() {
IN.baseID[0] = 0;
EmitMeshTasksEXT(1u, 1u, 1u);
}
)glsl";
const char *mesh_source = R"glsl(
#version 460
#extension GL_EXT_mesh_shader : require
layout(max_vertices = 3, max_primitives=1) out;
layout(triangles) out;
layout(constant_id = 0) const int SIZE = 64;
struct Task {
uint baseID[SIZE];
};
taskPayloadSharedEXT Task IN;
shared int a[SIZE];
void main(){}
)glsl";
uint32_t size = max_mesh_payload_and_shared_ints / 2;
VkSpecializationMapEntry map_entry;
map_entry.constantID = 0u;
map_entry.offset = 0u;
map_entry.size = sizeof(uint32_t);
VkSpecializationInfo spec_info;
spec_info.mapEntryCount = 1u;
spec_info.pMapEntries = &map_entry;
spec_info.dataSize = sizeof(uint32_t);
spec_info.pData = &size;
VkShaderObj task(*m_device, task_source, VK_SHADER_STAGE_TASK_BIT_EXT, SPV_ENV_VULKAN_1_2);
VkShaderObj mesh(*m_device, mesh_source, VK_SHADER_STAGE_MESH_BIT_EXT, SPV_ENV_VULKAN_1_2, SPV_SOURCE_GLSL, &spec_info);
const auto set_info = [&](CreatePipelineHelper &helper) {
helper.shader_stages_ = {task.GetStageCreateInfo(), mesh.GetStageCreateInfo()};
};
CreatePipelineHelper::OneshotTest(*this, set_info, kErrorBit);
}
TEST_F(PositiveShaderMesh, TaskSharedMemory) {
SetTargetApiVersion(VK_API_VERSION_1_2);
AddRequiredExtensions(VK_EXT_MESH_SHADER_EXTENSION_NAME);
AddRequiredFeature(vkt::Feature::taskShader);
AddRequiredFeature(vkt::Feature::meshShader);
RETURN_IF_SKIP(Init());
RETURN_IF_SKIP(InitRenderTarget());
VkPhysicalDeviceMeshShaderPropertiesEXT mesh_shader_properties = vku::InitStructHelper();
GetPhysicalDeviceProperties2(mesh_shader_properties);
const uint32_t max_shared_memory_size = mesh_shader_properties.maxTaskSharedMemorySize;
const uint32_t max_shared_ints = max_shared_memory_size / 4;
VkShaderObj mesh(*m_device, kMeshMinimalGlsl, VK_SHADER_STAGE_MESH_BIT_EXT, SPV_ENV_VULKAN_1_2);
std::ostringstream task_source;
task_source << R"glsl(
#version 460
#extension GL_EXT_mesh_shader : require
layout (constant_id = 0) const int v = )glsl";
task_source << (max_shared_ints + 16);
task_source << R"glsl(;
shared int a[v];
void main(){}
)glsl";
uint32_t data = max_shared_ints;
VkSpecializationMapEntry map_entry = {0, 0, sizeof(uint32_t)};
VkSpecializationInfo specialization_info = {};
specialization_info.mapEntryCount = 1;
specialization_info.pMapEntries = &map_entry;
specialization_info.dataSize = sizeof(uint32_t);
specialization_info.pData = &data;
VkShaderObj task(*m_device, task_source.str().c_str(), VK_SHADER_STAGE_TASK_BIT_EXT, SPV_ENV_VULKAN_1_2, SPV_SOURCE_GLSL,
&specialization_info);
CreatePipelineHelper pipe(*this);
pipe.shader_stages_ = {task.GetStageCreateInfo(), mesh.GetStageCreateInfo()};
pipe.CreateGraphicsPipeline();
}
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