/*
    #version:1# (machine generated, don't edit!)

    Generated by sokol-shdc (https://github.com/floooh/sokol-tools)

    Cmdline:
        sokol-shdc -i shader_ssao.glsl -o ./jai/shader_ssao.jai -l glsl430:glsl300es:metal_macos -f sokol_jai

    Overview:
    =========
    Shader program: 'ssao':
        Get shader desc: ssao_shader_desc(sg_query_backend())
        Vertex Shader: vs_ssao
        Fragment Shader: fs_ssao
        Attributes:
            ATTR_ssao_position => 0
            ATTR_ssao_uv => 1
    Bindings:
        Uniform block 'ssao_fs_params':
            Jai struct: Ssao_Fs_Params
            Bind slot: UB_ssao_fs_params => 1
        Image 'g_position':
            Image type: ._2D
            Sample type: .FLOAT
            Multisampled: false
            Bind slot: IMG_g_position => 0
        Image 'g_normal':
            Image type: ._2D
            Sample type: .FLOAT
            Multisampled: false
            Bind slot: IMG_g_normal => 1
        Image 'tex_noise':
            Image type: ._2D
            Sample type: .FLOAT
            Multisampled: false
            Bind slot: IMG_tex_noise => 2
        Sampler 'ssao_smp':
            Type: .FILTERING
            Bind slot: SMP_ssao_smp => 0
*/
ATTR_ssao_position :: 0;
ATTR_ssao_uv :: 1;
UB_ssao_fs_params :: 1;
IMG_g_position :: 0;
IMG_g_normal :: 1;
IMG_tex_noise :: 2;
SMP_ssao_smp :: 0;
Ssao_Fs_Params :: struct {
    projection: [16]float;
    samples: [64][4]float;
    ssao_power: float;
    _: [12]u8;
};
/*
    #version 430

    layout(location = 0) in vec2 position;
    layout(location = 0) out vec2 quad_uv;
    layout(location = 1) in vec2 uv;

    void main()
    {
        gl_Position = vec4(position, 0.0, 1.0);
        quad_uv = uv;
    }

*/
vs_ssao_source_glsl430 := u8.[
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    0x5f,0x75,0x76,0x20,0x3d,0x20,0x75,0x76,0x3b,0x0a,0x7d,0x0a,0x0a,0x00,
];
/*
    #version 430

    vec4 _220;

    uniform vec4 ssao_fs_params[69];
    layout(binding = 16) uniform sampler2D g_position_ssao_smp;
    layout(binding = 17) uniform sampler2D g_normal_ssao_smp;
    layout(binding = 18) uniform sampler2D tex_noise_ssao_smp;

    layout(location = 0) in vec2 quad_uv;
    layout(location = 0) out vec4 out_color;

    void main()
    {
        vec3 _26 = texture(g_position_ssao_smp, quad_uv).xyz;
        vec3 _35 = normalize(texture(g_normal_ssao_smp, quad_uv).xyz);
        vec3 _51 = normalize(texture(tex_noise_ssao_smp, quad_uv * vec2(480.0, 270.0)).xyz);
        vec3 _60 = normalize(_51 - (_35 * dot(_51, _35)));
        mat3 _85 = mat3(_60, cross(_35, _60), _35);
        float occlusion = 0.0;
        for (int i = 0; i < 64; i++)
        {
            vec3 _121 = _26 + ((_85 * ssao_fs_params[i * 1 + 4].xyz) * 0.5);
            vec4 _133 = mat4(ssao_fs_params[0], ssao_fs_params[1], ssao_fs_params[2], ssao_fs_params[3]) * vec4(_121, 1.0);
            vec3 _140 = _133.xyz / vec3(_133.w);
            vec4 _204;
            _204.x = _140.x;
            _204.y = _140.y;
            vec3 _154 = (_204.xyz * 0.5) + vec3(0.5);
            vec4 _210;
            _210.x = _154.x;
            _210.y = _154.y;
            vec4 _167 = texture(g_position_ssao_smp, _210.xy);
            if (length(_167.xyz) > 0.00999999977648258209228515625)
            {
                occlusion += float(_167.z >= _121.z);
            }
        }
        float _185 = occlusion;
        float _188 = 1.0 - (_185 * 0.015625);
        occlusion = _188;
        float _196 = pow(_188, ssao_fs_params[68].x);
        out_color = vec4(_196, _196, _196, 1.0);
    }

*/
fs_ssao_source_glsl430 := u8.[
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];
/*
    #version 300 es

    layout(location = 0) in vec2 position;
    out vec2 quad_uv;
    layout(location = 1) in vec2 uv;

    void main()
    {
        gl_Position = vec4(position, 0.0, 1.0);
        quad_uv = uv;
    }

*/
vs_ssao_source_glsl300es := u8.[
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];
/*
    #version 300 es
    precision mediump float;
    precision highp int;

    vec4 _220;

    uniform highp vec4 ssao_fs_params[69];
    uniform highp sampler2D g_position_ssao_smp;
    uniform highp sampler2D g_normal_ssao_smp;
    uniform highp sampler2D tex_noise_ssao_smp;

    in highp vec2 quad_uv;
    layout(location = 0) out highp vec4 out_color;

    void main()
    {
        highp vec3 _26 = texture(g_position_ssao_smp, quad_uv).xyz;
        highp vec3 _35 = normalize(texture(g_normal_ssao_smp, quad_uv).xyz);
        highp vec3 _51 = normalize(texture(tex_noise_ssao_smp, quad_uv * vec2(480.0, 270.0)).xyz);
        highp vec3 _60 = normalize(_51 - (_35 * dot(_51, _35)));
        highp mat3 _85 = mat3(_60, cross(_35, _60), _35);
        highp float occlusion = 0.0;
        for (int i = 0; i < 64; i++)
        {
            highp vec3 _121 = _26 + ((_85 * ssao_fs_params[i * 1 + 4].xyz) * 0.5);
            highp vec4 _133 = mat4(ssao_fs_params[0], ssao_fs_params[1], ssao_fs_params[2], ssao_fs_params[3]) * vec4(_121, 1.0);
            highp vec3 _140 = _133.xyz / vec3(_133.w);
            highp vec4 _204;
            _204.x = _140.x;
            _204.y = _140.y;
            highp vec3 _154 = (_204.xyz * 0.5) + vec3(0.5);
            highp vec4 _210;
            _210.x = _154.x;
            _210.y = _154.y;
            highp vec4 _167 = texture(g_position_ssao_smp, _210.xy);
            if (length(_167.xyz) > 0.00999999977648258209228515625)
            {
                occlusion += float(_167.z >= _121.z);
            }
        }
        highp float _185 = occlusion;
        highp float _188 = 1.0 - (_185 * 0.015625);
        occlusion = _188;
        highp float _196 = pow(_188, ssao_fs_params[68].x);
        out_color = vec4(_196, _196, _196, 1.0);
    }

*/
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];
/*
    #include <metal_stdlib>
    #include <simd/simd.h>

    using namespace metal;

    struct main0_out
    {
        float2 quad_uv [[user(locn0)]];
        float4 gl_Position [[position]];
    };

    struct main0_in
    {
        float2 position [[attribute(0)]];
        float2 uv [[attribute(1)]];
    };

    vertex main0_out main0(main0_in in [[stage_in]])
    {
        main0_out out = {};
        out.gl_Position = float4(in.position, 0.0, 1.0);
        out.quad_uv = in.uv;
        return out;
    }

*/
vs_ssao_source_metal_macos := u8.[
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];
/*
    #include <metal_stdlib>
    #include <simd/simd.h>

    using namespace metal;

    struct ssao_fs_params
    {
        float4x4 projection;
        float4 samples[64];
        float ssao_power;
    };

    constant float4 _227 = {};

    struct main0_out
    {
        float4 out_color [[color(0)]];
    };

    struct main0_in
    {
        float2 quad_uv [[user(locn0)]];
    };

    fragment main0_out main0(main0_in in [[stage_in]], constant ssao_fs_params& _109 [[buffer(0)]], texture2d<float> g_position [[texture(0)]], texture2d<float> g_normal [[texture(1)]], texture2d<float> tex_noise [[texture(2)]], sampler ssao_smp [[sampler(0)]])
    {
        main0_out out = {};
        float3 _26 = g_position.sample(ssao_smp, in.quad_uv).xyz;
        float3 _35 = fast::normalize(g_normal.sample(ssao_smp, in.quad_uv).xyz);
        float3 _51 = fast::normalize(tex_noise.sample(ssao_smp, (in.quad_uv * float2(480.0, 270.0))).xyz);
        float3 _60 = fast::normalize(_51 - (_35 * dot(_51, _35)));
        float3x3 _85 = float3x3(_60, cross(_35, _60), _35);
        float occlusion = 0.0;
        for (int i = 0; i < 64; i++)
        {
            float3 _121 = _26 + ((_85 * _109.samples[i].xyz) * 0.5);
            float4 _133 = _109.projection * float4(_121, 1.0);
            float3 _140 = _133.xyz / float3(_133.w);
            float4 _208;
            _208.x = _140.x;
            _208.y = _140.y;
            float3 _154 = (_208.xyz * 0.5) + float3(0.5);
            float4 _214;
            _214.x = _154.x;
            _214.y = 1.0 - _154.y;
            float4 _171 = g_position.sample(ssao_smp, _214.xy);
            if (length(_171.xyz) > 0.00999999977648258209228515625)
            {
                occlusion += float(_171.z >= _121.z);
            }
        }
        float _189 = occlusion;
        float _192 = 1.0 - (_189 * 0.015625);
        occlusion = _192;
        float _200 = powr(_192, _109.ssao_power);
        out.out_color = float4(_200, _200, _200, 1.0);
        return out;
    }

*/
fs_ssao_source_metal_macos := u8.[
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ssao_shader_desc :: (backend: sg_backend) -> sg_shader_desc {
    desc: sg_shader_desc;
    desc.label = "ssao_shader";
    if backend == {
    case .GLCORE;
        desc.vertex_func.source = xx *vs_ssao_source_glsl430;
        desc.vertex_func.entry = "main";
        desc.fragment_func.source = xx *fs_ssao_source_glsl430;
        desc.fragment_func.entry = "main";
        desc.attrs[0].base_type = .FLOAT;
        desc.attrs[0].glsl_name = "position";
        desc.attrs[1].base_type = .FLOAT;
        desc.attrs[1].glsl_name = "uv";
        desc.uniform_blocks[1].stage = .FRAGMENT;
        desc.uniform_blocks[1].layout = .STD140;
        desc.uniform_blocks[1].size = 1104;
        desc.uniform_blocks[1].glsl_uniforms[0].type = .FLOAT4;
        desc.uniform_blocks[1].glsl_uniforms[0].array_count = 69;
        desc.uniform_blocks[1].glsl_uniforms[0].glsl_name = "ssao_fs_params";
        desc.images[0].stage = .FRAGMENT;
        desc.images[0].multisampled = false;
        desc.images[0].image_type = ._2D;
        desc.images[0].sample_type = .FLOAT;
        desc.images[1].stage = .FRAGMENT;
        desc.images[1].multisampled = false;
        desc.images[1].image_type = ._2D;
        desc.images[1].sample_type = .FLOAT;
        desc.images[2].stage = .FRAGMENT;
        desc.images[2].multisampled = false;
        desc.images[2].image_type = ._2D;
        desc.images[2].sample_type = .FLOAT;
        desc.samplers[0].stage = .FRAGMENT;
        desc.samplers[0].sampler_type = .FILTERING;
        desc.image_sampler_pairs[0].stage = .FRAGMENT;
        desc.image_sampler_pairs[0].image_slot = 0;
        desc.image_sampler_pairs[0].sampler_slot = 0;
        desc.image_sampler_pairs[0].glsl_name = "g_position_ssao_smp";
        desc.image_sampler_pairs[1].stage = .FRAGMENT;
        desc.image_sampler_pairs[1].image_slot = 1;
        desc.image_sampler_pairs[1].sampler_slot = 0;
        desc.image_sampler_pairs[1].glsl_name = "g_normal_ssao_smp";
        desc.image_sampler_pairs[2].stage = .FRAGMENT;
        desc.image_sampler_pairs[2].image_slot = 2;
        desc.image_sampler_pairs[2].sampler_slot = 0;
        desc.image_sampler_pairs[2].glsl_name = "tex_noise_ssao_smp";
    case .GLES3;
        desc.vertex_func.source = xx *vs_ssao_source_glsl300es;
        desc.vertex_func.entry = "main";
        desc.fragment_func.source = xx *fs_ssao_source_glsl300es;
        desc.fragment_func.entry = "main";
        desc.attrs[0].base_type = .FLOAT;
        desc.attrs[0].glsl_name = "position";
        desc.attrs[1].base_type = .FLOAT;
        desc.attrs[1].glsl_name = "uv";
        desc.uniform_blocks[1].stage = .FRAGMENT;
        desc.uniform_blocks[1].layout = .STD140;
        desc.uniform_blocks[1].size = 1104;
        desc.uniform_blocks[1].glsl_uniforms[0].type = .FLOAT4;
        desc.uniform_blocks[1].glsl_uniforms[0].array_count = 69;
        desc.uniform_blocks[1].glsl_uniforms[0].glsl_name = "ssao_fs_params";
        desc.images[0].stage = .FRAGMENT;
        desc.images[0].multisampled = false;
        desc.images[0].image_type = ._2D;
        desc.images[0].sample_type = .FLOAT;
        desc.images[1].stage = .FRAGMENT;
        desc.images[1].multisampled = false;
        desc.images[1].image_type = ._2D;
        desc.images[1].sample_type = .FLOAT;
        desc.images[2].stage = .FRAGMENT;
        desc.images[2].multisampled = false;
        desc.images[2].image_type = ._2D;
        desc.images[2].sample_type = .FLOAT;
        desc.samplers[0].stage = .FRAGMENT;
        desc.samplers[0].sampler_type = .FILTERING;
        desc.image_sampler_pairs[0].stage = .FRAGMENT;
        desc.image_sampler_pairs[0].image_slot = 0;
        desc.image_sampler_pairs[0].sampler_slot = 0;
        desc.image_sampler_pairs[0].glsl_name = "g_position_ssao_smp";
        desc.image_sampler_pairs[1].stage = .FRAGMENT;
        desc.image_sampler_pairs[1].image_slot = 1;
        desc.image_sampler_pairs[1].sampler_slot = 0;
        desc.image_sampler_pairs[1].glsl_name = "g_normal_ssao_smp";
        desc.image_sampler_pairs[2].stage = .FRAGMENT;
        desc.image_sampler_pairs[2].image_slot = 2;
        desc.image_sampler_pairs[2].sampler_slot = 0;
        desc.image_sampler_pairs[2].glsl_name = "tex_noise_ssao_smp";
    case .METAL_MACOS;
        desc.vertex_func.source = xx *vs_ssao_source_metal_macos;
        desc.vertex_func.entry = "main0";
        desc.fragment_func.source = xx *fs_ssao_source_metal_macos;
        desc.fragment_func.entry = "main0";
        desc.attrs[0].base_type = .FLOAT;
        desc.attrs[1].base_type = .FLOAT;
        desc.uniform_blocks[1].stage = .FRAGMENT;
        desc.uniform_blocks[1].layout = .STD140;
        desc.uniform_blocks[1].size = 1104;
        desc.uniform_blocks[1].msl_buffer_n = 0;
        desc.images[0].stage = .FRAGMENT;
        desc.images[0].multisampled = false;
        desc.images[0].image_type = ._2D;
        desc.images[0].sample_type = .FLOAT;
        desc.images[0].msl_texture_n = 0;
        desc.images[1].stage = .FRAGMENT;
        desc.images[1].multisampled = false;
        desc.images[1].image_type = ._2D;
        desc.images[1].sample_type = .FLOAT;
        desc.images[1].msl_texture_n = 1;
        desc.images[2].stage = .FRAGMENT;
        desc.images[2].multisampled = false;
        desc.images[2].image_type = ._2D;
        desc.images[2].sample_type = .FLOAT;
        desc.images[2].msl_texture_n = 2;
        desc.samplers[0].stage = .FRAGMENT;
        desc.samplers[0].sampler_type = .FILTERING;
        desc.samplers[0].msl_sampler_n = 0;
        desc.image_sampler_pairs[0].stage = .FRAGMENT;
        desc.image_sampler_pairs[0].image_slot = 0;
        desc.image_sampler_pairs[0].sampler_slot = 0;
        desc.image_sampler_pairs[1].stage = .FRAGMENT;
        desc.image_sampler_pairs[1].image_slot = 1;
        desc.image_sampler_pairs[1].sampler_slot = 0;
        desc.image_sampler_pairs[2].stage = .FRAGMENT;
        desc.image_sampler_pairs[2].image_slot = 2;
        desc.image_sampler_pairs[2].sampler_slot = 0;
    }
    return desc;
}