# Copyright (c) 2019-2025, Arm Limited and Contributors
#
# SPDX-License-Identifier: Apache-2.0
#
# 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.
#

cmake_minimum_required(VERSION 3.16)

# Creates a list of the subdirectories within this folder
scan_dirs(
        DIR ${CMAKE_CURRENT_SOURCE_DIR}
        LIST SUB_DIRS)

# List of all samples
set(TOTAL_SAMPLE_ID_LIST)

# For each directory, add all the samples that exist within
function(add_sub_dirs DIRECTORY)
    scan_dirs(
            DIR ${DIRECTORY}
            LIST DIR_LIST)

    foreach (CURR_DIR ${DIR_LIST})
        if (EXISTS "${DIRECTORY}/${CURR_DIR}/CMakeLists.txt")
            add_subdirectory(${DIRECTORY}/${CURR_DIR})
            list(APPEND TOTAL_SAMPLE_ID_LIST ${CURR_DIR})
        else ()
            add_sub_dirs(${DIRECTORY}/${CURR_DIR})
        endif ()
        set(TOTAL_SAMPLE_ID_LIST ${TOTAL_SAMPLE_ID_LIST} PARENT_SCOPE)
    endforeach ()
endfunction(add_sub_dirs)

foreach (SUB_DIR ${SUB_DIRS})
    add_sub_dirs(${CMAKE_CURRENT_SOURCE_DIR}/${SUB_DIR})
endforeach ()

# Order of the sample ids
set(ORDER_LIST
    #API Samples
    "hello_triangle"
    "hello_triangle_1_3"
    "dynamic_uniform_buffers"
    "texture_loading"
    "hdr"
    "instancing"
    "compute_nbody"
    "terrain_tessellation"
    "oit_linked_lists"
    "oit_depth_peeling"

    #Extension Samples
    "dynamic_rendering"
    "conservative_rasterization"
    "fragment_shading_rate"
    "fragment_shading_rate_dynamic"
    "full_screen_exclusive"
    "calibrated_timestamps"
    "graphics_pipeline_library"
    "memory_budget"
    "mesh_shader_culling"
    "push_descriptors"
    "ray_queries"
    "ray_tracing_basic"
    "ray_tracing_extended"
    "ray_tracing_reflection"
    "timeline_semaphore"
    "shader_object"
    "shader_debugprintf"
    "synchronization_2"
    "buffer_device_address"
    "descriptor_indexing"
    "portability"
    "vertex_dynamic_state"
    "extended_dynamic_state2"
    "logic_op_dynamic_state"
    "patch_control_points"
    "fragment_shader_barycentric"
    "gshader_to_mshader"
    "color_write_enable"
    "dynamic_multisample_rasterization"
    "sparse_image"
    "dynamic_primitive_clipping"

    #Performance Samples
    "swapchain_images"
    "surface_rotation"
    "pipeline_cache"
    "descriptor_management"
    "constant_data"
    "render_passes"
    "msaa"
    "subpasses"
    "pipeline_barriers"
    "wait_idle"
    "layout_transitions"
    "specialization_constants"
    "command_buffer_usage"
    "multithreading_render_passes"
    "afbc"
    "16bit_storage_input_output"
    "16bit_arithmetic"
    "async_compute"
    "multi_draw_indirect"
    "texture_compression_comparison"

    #Tooling samples
    "profiles"

    #HPP API Samples
    "hpp_compute_nbody"
    "hpp_dynamic_uniform_buffers"
    "hpp_hdr"
    "hpp_hello_triangle"
    "hpp_instancing"
    "hpp_oit_depth_peeling"
    "hpp_oit_linked_lists"
    "hpp_separate_image_sampler"
    "hpp_terrain_tessellation"
    "hpp_texture_loading"
    "hpp_texture_mipmap_generation"
    
    #HPP Extension Samples
    "hpp_mesh_shading"
    "hpp_push_descriptors"
    
    #HPP Performance Samples
    "hpp_pipeline_cache"
    "hpp_swapchain_images"
    "hpp_texture_compression_comparison"
    
    #General Samples
    "mobile_nerf")

# Orders the sample ids by the order list above
set(ORDERED_LIST)
list(REMOVE_DUPLICATES ORDER_LIST)

# Add samples to ordered list based on the a predefined order
foreach (SAMPLE_ID ${ORDER_LIST})
    list(FIND ORDERED_LIST ${SAMPLE_ID} FOUND_SAMPLE)
    if (NOT ${FOUND_SAMPLE} LESS 0)
        list(APPEND ORDERED_LIST ${SAMPLE_ID})
    endif ()
endforeach ()

# Add the remaining samples to the ordered list that are not in the predefined order
foreach (SAMPLE_ID ${TOTAL_SAMPLE_ID_LIST})
    list(FIND ORDERED_LIST ${SAMPLE_ID} FOUND_SAMPLE)
    if (${FOUND_SAMPLE} LESS 0)
        list(APPEND ORDERED_LIST ${SAMPLE_ID})
    endif ()
endforeach ()

# Make sample list visible parent scope (required by vulkan_samples project)
set(TOTAL_SAMPLE_ID_LIST ${ORDERED_LIST} PARENT_SCOPE)