reshade_api_pipeline.hpp

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/*
 * Copyright (C) 2021 Patrick Mours
 * SPDX-License-Identifier: BSD-3-Clause OR MIT
 */
 
#pragma once
 
#include "reshade_api_resource.hpp"
 
namespace reshade::api
{
    enum class shader_stage : uint32_t
    {
        vertex = 0x1,
        hull = 0x2,
        domain = 0x4,
        geometry = 0x8,
        pixel = 0x10,
        compute = 0x20,
 
        all = 0x7FFFFFFF,
        all_compute = compute,
        all_graphics = vertex | hull | domain | geometry | pixel
    };
    RESHADE_DEFINE_ENUM_FLAG_OPERATORS(shader_stage);
 
    enum class pipeline_stage : uint32_t
    {
        vertex_shader = 0x8,
        hull_shader = 0x10,
        domain_shader = 0x20,
        geometry_shader = 0x40,
        pixel_shader = 0x80,
        compute_shader = 0x800,
 
        input_assembler = 0x2,
        stream_output = 0x4,
        rasterizer = 0x100,
        depth_stencil = 0x200,
        output_merger = 0x400,
 
        all = 0x7FFFFFFF,
        all_compute = compute_shader,
        all_graphics = vertex_shader | hull_shader | domain_shader | geometry_shader | pixel_shader | input_assembler | stream_output | rasterizer | depth_stencil | output_merger,
        all_shader_stages = vertex_shader | hull_shader | domain_shader | geometry_shader | pixel_shader | compute_shader
    };
    RESHADE_DEFINE_ENUM_FLAG_OPERATORS(pipeline_stage);
 
    enum class descriptor_type : uint32_t
    {
        sampler = 0,
        sampler_with_resource_view = 1,
        shader_resource_view = 2,
        unordered_access_view = 3,
        constant_buffer = 6,
        shader_storage_buffer = 7
    };
 
    enum class pipeline_layout_param_type : uint32_t
    {
        push_constants = 1,
        push_descriptors = 2,
        descriptor_set = 0
    };
 
    struct constant_range
    {
        uint32_t binding = 0;
        uint32_t dx_register_index = 0;
        uint32_t dx_register_space = 0;
        uint32_t count = 0;
        shader_stage visibility = shader_stage::all;
    };
 
    struct descriptor_range
    {
        uint32_t binding = 0;
        uint32_t dx_register_index = 0;
        uint32_t dx_register_space = 0;
        uint32_t count = 0;
        shader_stage visibility = shader_stage::all;
        uint32_t array_size = 1;
        descriptor_type type = descriptor_type::sampler;
    };
 
    struct pipeline_layout_param
    {
        constexpr pipeline_layout_param() : push_descriptors() {}
        constexpr pipeline_layout_param(const constant_range &push_constants) : type(pipeline_layout_param_type::push_constants), push_constants(push_constants) {}
        constexpr pipeline_layout_param(const descriptor_range &push_descriptors) : type(pipeline_layout_param_type::push_descriptors), push_descriptors(push_descriptors) {}
        constexpr pipeline_layout_param(uint32_t count, const descriptor_range *ranges) : type(pipeline_layout_param_type::descriptor_set), descriptor_set({ count, ranges }) {}
 
        pipeline_layout_param_type type = pipeline_layout_param_type::push_descriptors;
 
        union
        {
            constant_range push_constants;
 
            descriptor_range push_descriptors;
 
            struct
            {
                uint32_t count;
                const descriptor_range *ranges;
            } descriptor_set;
        };
    };
 
    RESHADE_DEFINE_HANDLE(pipeline_layout);
 
    enum class fill_mode : uint32_t
    {
        solid = 0,
        wireframe = 1,
        point = 2
    };
 
    enum class cull_mode : uint32_t
    {
        none = 0,
        front = 1,
        back = 2,
        front_and_back = front | back
    };
    RESHADE_DEFINE_ENUM_FLAG_OPERATORS(cull_mode);
 
    enum class logic_op : uint32_t
    {
        clear = 0,
        bitwise_and = 1,
        bitwise_and_reverse = 2,
        copy = 3,
        bitwise_and_inverted = 4,
        noop = 5,
        bitwise_xor = 6,
        bitwise_or = 7,
        bitwise_nor = 8,
        equivalent = 9,
        invert = 10,
        bitwise_or_reverse = 11,
        copy_inverted = 12,
        bitwise_or_inverted = 13,
        bitwise_nand = 14,
        set = 15
    };
 
    enum class blend_op : uint32_t
    {
        add = 0,
        subtract = 1,
        reverse_subtract = 2,
        min = 3,
        max = 4
    };
 
    enum class blend_factor : uint32_t
    {
        zero = 0,
        one = 1,
        source_color = 2,
        one_minus_source_color = 3,
        dest_color = 4,
        one_minus_dest_color = 5,
        source_alpha = 6,
        one_minus_source_alpha = 7,
        dest_alpha = 8,
        one_minus_dest_alpha = 9,
        constant_color = 10,
        one_minus_constant_color = 11,
        constant_alpha = 12,
        one_minus_constant_alpha = 13,
        source_alpha_saturate = 14,
        source1_color = 15,
        one_minus_source1_color = 16,
        source1_alpha = 17,
        one_minus_source1_alpha = 18
    };
 
    enum class stencil_op : uint32_t
    {
        keep = 0,
        zero = 1,
        replace = 2,
        increment_saturate = 3,
        decrement_saturate = 4,
        invert = 5,
        increment = 6,
        decrement = 7
    };
 
    enum class primitive_topology : uint32_t
    {
        undefined = 0,
 
        point_list = 1,
        line_list = 2,
        line_strip = 3,
        triangle_list = 4,
        triangle_strip = 5,
        triangle_fan = 6,
        quad_list = 8,
        quad_strip = 9,
        line_list_adj = 10,
        line_strip_adj = 11,
        triangle_list_adj = 12,
        triangle_strip_adj = 13,
 
        patch_list_01_cp = 33,
        patch_list_02_cp,
        patch_list_03_cp,
        patch_list_04_cp,
        patch_list_05_cp,
        patch_list_06_cp,
        patch_list_07_cp,
        patch_list_08_cp,
        patch_list_09_cp,
        patch_list_10_cp,
        patch_list_11_cp,
        patch_list_12_cp,
        patch_list_13_cp,
        patch_list_14_cp,
        patch_list_15_cp,
        patch_list_16_cp,
        patch_list_17_cp,
        patch_list_18_cp,
        patch_list_19_cp,
        patch_list_20_cp,
        patch_list_21_cp,
        patch_list_22_cp,
        patch_list_23_cp,
        patch_list_24_cp,
        patch_list_25_cp,
        patch_list_26_cp,
        patch_list_27_cp,
        patch_list_28_cp,
        patch_list_29_cp,
        patch_list_30_cp,
        patch_list_31_cp,
        patch_list_32_cp
    };
 
    struct shader_desc
    {
        const void *code = nullptr;
        size_t code_size = 0;
        const char *entry_point = nullptr;
 
        uint32_t spec_constants = 0;
        const uint32_t *spec_constant_ids = nullptr;
        const uint32_t *spec_constant_values = nullptr;
    };
 
    struct input_element
    {
        uint32_t location = 0;
        const char *semantic = nullptr;
        uint32_t semantic_index = 0;
        format format = format::unknown;
        uint32_t buffer_binding = 0;
        uint32_t offset = 0;
        uint32_t stride = 0;
        uint32_t instance_step_rate = 0;
    };
 
    struct stream_output_desc
    {
        uint32_t rasterized_stream = 0;
    };
 
    struct blend_desc
    {
        bool alpha_to_coverage_enable = false;
        bool blend_enable[8] = { false, false, false, false, false, false, false, false };
        bool logic_op_enable[8] = { false, false, false, false, false, false, false, false };
        blend_factor source_color_blend_factor[8] = { blend_factor::one, blend_factor::one, blend_factor::one, blend_factor::one, blend_factor::one, blend_factor::one, blend_factor::one, blend_factor::one };
        blend_factor dest_color_blend_factor[8] = { blend_factor::zero, blend_factor::zero, blend_factor::zero, blend_factor::zero, blend_factor::zero, blend_factor::zero, blend_factor::zero, blend_factor::zero };
        blend_op color_blend_op[8] = { blend_op::add, blend_op::add, blend_op::add, blend_op::add, blend_op::add, blend_op::add, blend_op::add, blend_op::add };
        blend_factor source_alpha_blend_factor[8] = { blend_factor::one, blend_factor::one, blend_factor::one, blend_factor::one, blend_factor::one, blend_factor::one, blend_factor::one, blend_factor::one };
        blend_factor dest_alpha_blend_factor[8] = { blend_factor::zero, blend_factor::zero, blend_factor::zero, blend_factor::zero, blend_factor::zero, blend_factor::zero, blend_factor::zero, blend_factor::zero };
        blend_op alpha_blend_op[8] = { blend_op::add, blend_op::add, blend_op::add, blend_op::add, blend_op::add, blend_op::add, blend_op::add, blend_op::add };
        float blend_constant[4] = { 1.0f, 1.0f, 1.0f, 1.0f };
        logic_op logic_op[8] = { logic_op::noop, logic_op::noop, logic_op::noop, logic_op::noop, logic_op::noop, logic_op::noop, logic_op::noop, logic_op::noop };
        uint8_t render_target_write_mask[8] = { 0xF, 0xF, 0xF, 0xF, 0xF, 0xF, 0xF, 0xF };
    };
 
    struct rasterizer_desc
    {
        fill_mode fill_mode = fill_mode::solid;
        cull_mode cull_mode = cull_mode::back;
        bool front_counter_clockwise = false;
        float depth_bias = 0.0f;
        float depth_bias_clamp = 0.0f;
        float slope_scaled_depth_bias = 0.0f;
        bool depth_clip_enable = true;
        bool scissor_enable = false;
        bool multisample_enable = false;
        bool antialiased_line_enable = false;
        uint32_t conservative_rasterization = 0;
    };
 
    struct depth_stencil_desc
    {
        bool depth_enable = true;
        bool depth_write_mask = true;
        compare_op depth_func = compare_op::less;
        bool stencil_enable = false;
        uint8_t stencil_read_mask = 0xFF;
        uint8_t stencil_write_mask = 0xFF;
        uint8_t stencil_reference_value = 0;
        compare_op front_stencil_func = compare_op::always;
        stencil_op front_stencil_pass_op = stencil_op::keep;
        stencil_op front_stencil_fail_op = stencil_op::keep;
        stencil_op front_stencil_depth_fail_op = stencil_op::keep;
        compare_op back_stencil_func = compare_op::always;
        stencil_op back_stencil_pass_op = stencil_op::keep;
        stencil_op back_stencil_fail_op = stencil_op::keep;
        stencil_op back_stencil_depth_fail_op = stencil_op::keep;
    };
 
    enum class pipeline_subobject_type : uint32_t
    {
        unknown,
        vertex_shader,
        hull_shader,
        domain_shader,
        geometry_shader,
        pixel_shader,
        compute_shader,
        input_layout,
        stream_output_state,
        blend_state,
        rasterizer_state,
        depth_stencil_state,
        primitive_topology,
        depth_stencil_format,
        render_target_formats,
        sample_mask,
        sample_count,
        viewport_count,
        dynamic_pipeline_states,
        max_vertex_count
    };
 
    struct pipeline_subobject
    {
        pipeline_subobject_type type = pipeline_subobject_type::unknown;
        uint32_t count = 0;
        void *data = nullptr;
    };
 
    RESHADE_DEFINE_HANDLE(pipeline);
 
    struct buffer_range
    {
        resource buffer = { 0 };
        uint64_t offset = 0;
        uint64_t size = UINT64_MAX;
    };
 
    struct sampler_with_resource_view
    {
        sampler sampler = { 0 };
        resource_view view = { 0 };
    };
 
    RESHADE_DEFINE_HANDLE(descriptor_set);
 
    struct descriptor_set_copy
    {
        descriptor_set source_set = { 0 };
        uint32_t source_binding = 0;
        uint32_t source_array_offset = 0;
        descriptor_set dest_set = { 0 };
        uint32_t dest_binding = 0;
        uint32_t dest_array_offset = 0;
        uint32_t count = 0;
    };
 
    struct descriptor_set_update
    {
        descriptor_set set = { 0 };
        uint32_t binding = 0;
        uint32_t array_offset = 0;
        uint32_t count = 0;
        descriptor_type type = descriptor_type::sampler;
        const void *descriptors = nullptr;
    };
 
    RESHADE_DEFINE_HANDLE(descriptor_pool);
 
    enum class query_type
    {
        occlusion = 0,
        binary_occlusion = 1,
        timestamp = 2,
        pipeline_statistics = 3,
        stream_output_statistics_0 = 4,
        stream_output_statistics_1,
        stream_output_statistics_2,
        stream_output_statistics_3
    };
 
    RESHADE_DEFINE_HANDLE(query_pool);
 
    enum class dynamic_state
    {
        unknown = 0,
 
        alpha_test_enable = 15,
        alpha_reference_value = 24,
        alpha_func = 25,
        srgb_write_enable = 194,
        primitive_topology = 1000,
        sample_mask = 162,
 
        // Blend state
 
        alpha_to_coverage_enable = 1003,
        blend_enable = 27,
        logic_op_enable = 1004,
        source_color_blend_factor = 19,
        dest_color_blend_factor = 20,
        color_blend_op = 171,
        source_alpha_blend_factor = 207,
        dest_alpha_blend_factor = 208,
        alpha_blend_op = 209,
        logic_op = 1005,
        blend_constant = 193,
        render_target_write_mask = 168,
 
        // Rasterizer state
 
        fill_mode = 8,
        cull_mode = 22,
        front_counter_clockwise = 1001,
        depth_bias = 195,
        depth_bias_clamp = 1002,
        depth_bias_slope_scaled = 175,
        depth_clip_enable = 136,
        scissor_enable = 174,
        multisample_enable = 161,
        antialiased_line_enable = 176,
 
        // Depth-stencil state
 
        depth_enable = 7,
        depth_write_mask = 14,
        depth_func = 23,
        stencil_enable = 52,
        stencil_read_mask = 58,
        stencil_write_mask = 59,
        stencil_reference_value = 57,
        front_stencil_func = 56,
        front_stencil_pass_op = 55,
        front_stencil_fail_op = 53,
        front_stencil_depth_fail_op = 54,
        back_stencil_func = 189,
        back_stencil_pass_op = 188,
        back_stencil_fail_op = 186,
        back_stencil_depth_fail_op = 187
    };
 
    struct rect
    {
        int32_t left = 0;
        int32_t top = 0;
        int32_t right = 0;
        int32_t bottom = 0;
 
        constexpr uint32_t width() const { return right - left; }
        constexpr uint32_t height() const { return bottom - top; }
    };
 
    struct viewport
    {
        float x = 0.0f;
        float y = 0.0f;
        float width = 0.0f;
        float height = 0.0f;
        float min_depth = 0.0f;
        float max_depth = 1.0f;
    };
}