// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
// SPDX-License-Identifier: GPL-3.0-or-later

// SPDX-FileCopyrightText: Copyright 2021 yuzu Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later

#pragma once

#include "common/common_types.h"

namespace Shader {

// Try to keep entries here to a minimum
// They can accidentally change the cached information in a shader

/// Misc information about the host
struct HostTranslateInfo {
    static constexpr u32 DEFAULT_DESCRIPTOR_LIMIT = 1024;

    u64 min_ssbo_alignment{};            ///< Minimum alignment supported by the device for SSBOs
    u32 max_per_stage_descriptor_sampled_images{}; ///< maximum sampled descriptors per stage
    u32 max_per_stage_resources{};                 ///< maximum resources per stage
    u32 max_descriptor_set_samplers{};
    u32 max_descriptor_set_uniform_buffers{};
    u32 max_descriptor_set_uniform_buffers_dynamic{};
    u32 max_descriptor_set_storage_buffers{};
    u32 max_descriptor_set_storage_buffers_dynamic{};
    u32 max_descriptor_set_sampled_images{};
    u32 max_descriptor_set_storage_images{};
    u32 max_descriptor_set_input_attachements{};
    bool support_float64{};      ///< True when the device supports 64-bit floats
    bool support_float16{};      ///< True when the device supports 16-bit floats
    bool support_int64{};        ///< True when the device supports 64-bit integers
    bool needs_demote_reorder{}; ///< True when the device needs DemoteToHelperInvocation reordered
    bool support_snorm_render_buffer{};  ///< True when the device supports SNORM render buffers
    bool support_viewport_index_layer{}; ///< True when the device supports gl_Layer in VS
    bool support_geometry_shader_passthrough{}; ///< True when the device supports geometry
                                                ///< passthrough shaders
    bool support_conditional_barrier{}; ///< True when the device supports barriers in conditional
                                        ///< control flow

    void ApplyDescriptorLimitPolicy() noexcept {
        if (min_ssbo_alignment == 0) {
            min_ssbo_alignment = 1;
        }
        ApplyDescriptorLimitFallback(max_per_stage_descriptor_sampled_images);
        ApplyDescriptorLimitFallback(max_per_stage_resources);
        ApplyDescriptorLimitFallback(max_descriptor_set_samplers);
        ApplyDescriptorLimitFallback(max_descriptor_set_uniform_buffers);
        ApplyDescriptorLimitFallback(max_descriptor_set_uniform_buffers_dynamic);
        ApplyDescriptorLimitFallback(max_descriptor_set_storage_buffers);
        ApplyDescriptorLimitFallback(max_descriptor_set_storage_buffers_dynamic);
        ApplyDescriptorLimitFallback(max_descriptor_set_sampled_images);
        ApplyDescriptorLimitFallback(max_descriptor_set_storage_images);
        ApplyDescriptorLimitFallback(max_descriptor_set_input_attachements);
    }

private:
    static void ApplyDescriptorLimitFallback(u32& limit) noexcept {
        if (limit == 0) {
            limit = DEFAULT_DESCRIPTOR_LIMIT;
        }
    }
};

} // namespace Shader