package ve_sokol
import sg "thirdparty:sokol/gfx"
/*
    #version:1# (machine generated, don't edit!)

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

    Cmdline:
        sokol-shdc --input C:\projects\VEFontCache-Odin\backend\sokol\draw_text.shdc.glsl --output C:\projects\VEFontCache-Odin\backend\sokol\draw_text.odin --slang glsl410:glsl300es:hlsl4:metal_macos:wgsl --format=sokol_odin --module =draw_text

    Overview:
    =========
    Shader program: 'draw_text':
        Get shader desc: draw_text_shader_desc(sg.query_backend())
        Vertex Shader: draw_text_vs
        Fragment Shader: draw_text_fs
        Attributes:
            ATTR_draw_text_v_position => 0
            ATTR_draw_text_v_texture => 1
    Bindings:
        Uniform block 'draw_text_fs_params':
            Odin struct: Draw_Text_Fs_Params
            Bind slot: UB_draw_text_fs_params => 0
        Image 'draw_text_src_texture':
            Image type: ._2D
            Sample type: .FLOAT
            Multisampled: false
            Bind slot: IMG_draw_text_src_texture => 0
        Sampler 'draw_text_src_sampler':
            Type: .FILTERING
            Bind slot: SMP_draw_text_src_sampler => 0
*/
ATTR_draw_text_v_position :: 0
ATTR_draw_text_v_texture :: 1
UB_draw_text_fs_params :: 0
IMG_draw_text_src_texture :: 0
SMP_draw_text_src_sampler :: 0
Draw_Text_Fs_Params :: struct #align(16) {
    using _: struct #packed {
        down_sample: i32,
        _: [12]u8,
        colour: [4]f32,
    },
}
/*
    #version 410

    layout(location = 0) out vec2 uv;
    layout(location = 1) in vec2 v_texture;
    layout(location = 0) in vec2 v_position;

    void main()
    {
        uv = vec2(v_texture.x, v_texture.y);
        gl_Position = vec4((v_position * 2.0) - vec2(1.0), 0.0, 1.0);
    }

*/
@(private="file")
draw_text_vs_source_glsl410 := [255]u8 {
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}
/*
    #version 410

    struct draw_text_fs_params
    {
        int down_sample;
        vec4 colour;
    };

    uniform draw_text_fs_params _31;

    uniform sampler2D draw_text_src_texture_draw_text_src_sampler;

    layout(location = 0) in vec2 uv;
    layout(location = 0) out vec4 frag_color;

    void main()
    {
        float alpha = texture(draw_text_src_texture_draw_text_src_sampler, uv).x;
        if (_31.down_sample == 1)
        {
            alpha = 0.25 * (((texture(draw_text_src_texture_draw_text_src_sampler, uv + vec2(-0.000244140625, -0.0009765625)).x + texture(draw_text_src_texture_draw_text_src_sampler, uv + vec2(-0.000244140625, 0.0009765625)).x) + texture(draw_text_src_texture_draw_text_src_sampler, uv + vec2(0.000244140625, -0.0009765625)).x) + texture(draw_text_src_texture_draw_text_src_sampler, uv + vec2(0.000244140625, 0.0009765625)).x);
        }
        frag_color = vec4(_31.colour.xyz, _31.colour.w * alpha);
    }

*/
@(private="file")
draw_text_fs_source_glsl410 := [882]u8 {
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}
/*
    #version 300 es

    out vec2 uv;
    layout(location = 1) in vec2 v_texture;
    layout(location = 0) in vec2 v_position;

    void main()
    {
        uv = vec2(v_texture.x, v_texture.y);
        gl_Position = vec4((v_position * 2.0) - vec2(1.0), 0.0, 1.0);
    }

*/
@(private="file")
draw_text_vs_source_glsl300es := [237]u8 {
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}
/*
    #version 300 es
    precision mediump float;
    precision highp int;

    struct draw_text_fs_params
    {
        int down_sample;
        highp vec4 colour;
    };

    uniform draw_text_fs_params _31;

    uniform highp sampler2D draw_text_src_texture_draw_text_src_sampler;

    in highp vec2 uv;
    layout(location = 0) out highp vec4 frag_color;

    void main()
    {
        highp float alpha = texture(draw_text_src_texture_draw_text_src_sampler, uv).x;
        if (_31.down_sample == 1)
        {
            alpha = 0.25 * (((texture(draw_text_src_texture_draw_text_src_sampler, uv + vec2(-0.000244140625, -0.0009765625)).x + texture(draw_text_src_texture_draw_text_src_sampler, uv + vec2(-0.000244140625, 0.0009765625)).x) + texture(draw_text_src_texture_draw_text_src_sampler, uv + vec2(0.000244140625, -0.0009765625)).x) + texture(draw_text_src_texture_draw_text_src_sampler, uv + vec2(0.000244140625, 0.0009765625)).x);
        }
        frag_color = vec4(_31.colour.xyz, _31.colour.w * alpha);
    }

*/
@(private="file")
draw_text_fs_source_glsl300es := [940]u8 {
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}
/*
    static float4 gl_Position;
    static float2 uv;
    static float2 v_texture;
    static float2 v_position;

    struct SPIRV_Cross_Input
    {
        float2 v_position : TEXCOORD0;
        float2 v_texture : TEXCOORD1;
    };

    struct SPIRV_Cross_Output
    {
        float2 uv : TEXCOORD0;
        float4 gl_Position : SV_Position;
    };

    void vert_main()
    {
        uv = float2(v_texture.x, 1.0f - v_texture.y);
        gl_Position = float4((v_position * 2.0f) - 1.0f.xx, 0.0f, 1.0f);
    }

    SPIRV_Cross_Output main(SPIRV_Cross_Input stage_input)
    {
        v_texture = stage_input.v_texture;
        v_position = stage_input.v_position;
        vert_main();
        SPIRV_Cross_Output stage_output;
        stage_output.gl_Position = gl_Position;
        stage_output.uv = uv;
        return stage_output;
    }
*/
@(private="file")
draw_text_vs_source_hlsl4 := [724]u8 {
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}
/*
    cbuffer draw_text_fs_params : register(b0)
    {
        int _31_down_sample : packoffset(c0);
        float4 _31_colour : packoffset(c1);
    };

    Texture2D<float4> draw_text_src_texture : register(t0);
    SamplerState draw_text_src_sampler : register(s0);

    static float2 uv;
    static float4 frag_color;

    struct SPIRV_Cross_Input
    {
        float2 uv : TEXCOORD0;
    };

    struct SPIRV_Cross_Output
    {
        float4 frag_color : SV_Target0;
    };

    void frag_main()
    {
        float alpha = draw_text_src_texture.Sample(draw_text_src_sampler, uv).x;
        if (_31_down_sample == 1)
        {
            alpha = 0.25f * (((draw_text_src_texture.Sample(draw_text_src_sampler, uv + float2(-0.000244140625f, -0.0009765625f)).x + draw_text_src_texture.Sample(draw_text_src_sampler, uv + float2(-0.000244140625f, 0.0009765625f)).x) + draw_text_src_texture.Sample(draw_text_src_sampler, uv + float2(0.000244140625f, -0.0009765625f)).x) + draw_text_src_texture.Sample(draw_text_src_sampler, uv + float2(0.000244140625f, 0.0009765625f)).x);
        }
        frag_color = float4(_31_colour.xyz, _31_colour.w * alpha);
    }

    SPIRV_Cross_Output main(SPIRV_Cross_Input stage_input)
    {
        uv = stage_input.uv;
        frag_main();
        SPIRV_Cross_Output stage_output;
        stage_output.frag_color = frag_color;
        return stage_output;
    }
*/
@(private="file")
draw_text_fs_source_hlsl4 := [1257]u8 {
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}
/*
    #include <metal_stdlib>
    #include <simd/simd.h>

    using namespace metal;

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

    struct main0_in
    {
        float2 v_position [[attribute(0)]];
        float2 v_texture [[attribute(1)]];
    };

    vertex main0_out main0(main0_in in [[stage_in]])
    {
        main0_out out = {};
        out.uv = float2(in.v_texture.x, 1.0 - in.v_texture.y);
        out.gl_Position = float4((in.v_position * 2.0) - float2(1.0), 0.0, 1.0);
        return out;
    }

*/
@(private="file")
draw_text_vs_source_metal_macos := [495]u8 {
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}
/*
    #include <metal_stdlib>
    #include <simd/simd.h>

    using namespace metal;

    struct draw_text_fs_params
    {
        int down_sample;
        float4 colour;
    };

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

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

    fragment main0_out main0(main0_in in [[stage_in]], constant draw_text_fs_params& _31 [[buffer(0)]], texture2d<float> draw_text_src_texture [[texture(0)]], sampler draw_text_src_sampler [[sampler(0)]])
    {
        main0_out out = {};
        float alpha = draw_text_src_texture.sample(draw_text_src_sampler, in.uv).x;
        if (_31.down_sample == 1)
        {
            alpha = 0.25 * (((draw_text_src_texture.sample(draw_text_src_sampler, (in.uv + float2(-0.000244140625, -0.0009765625))).x + draw_text_src_texture.sample(draw_text_src_sampler, (in.uv + float2(-0.000244140625, 0.0009765625))).x) + draw_text_src_texture.sample(draw_text_src_sampler, (in.uv + float2(0.000244140625, -0.0009765625))).x) + draw_text_src_texture.sample(draw_text_src_sampler, (in.uv + float2(0.000244140625, 0.0009765625))).x);
        }
        out.frag_color = float4(_31.colour.xyz, _31.colour.w * alpha);
        return out;
    }

*/
@(private="file")
draw_text_fs_source_metal_macos := [1141]u8 {
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}
/*
    diagnostic(off, derivative_uniformity);

    var<private> uv : vec2f;

    var<private> v_texture : vec2f;

    var<private> v_position : vec2f;

    var<private> gl_Position : vec4f;

    fn main_1() {
      let x_16 : f32 = v_texture.x;
      let x_20 : f32 = v_texture.y;
      uv = vec2f(x_16, (1.0f - x_20));
      let x_31 : vec2f = v_position;
      let x_35 : vec2f = ((x_31 * 2.0f) - vec2f(1.0f, 1.0f));
      gl_Position = vec4f(x_35.x, x_35.y, 0.0f, 1.0f);
      return;
    }

    struct main_out {
      @location(0)
      uv_1 : vec2f,
      @builtin(position)
      gl_Position : vec4f,
    }

    @vertex
    fn main(@location(1) v_texture_param : vec2f, @location(0) v_position_param : vec2f) -> main_out {
      v_texture = v_texture_param;
      v_position = v_position_param;
      main_1();
      return main_out(uv, gl_Position);
    }

*/
@(private="file")
draw_text_vs_source_wgsl := [756]u8 {
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}
/*
    diagnostic(off, derivative_uniformity);

    struct draw_text_fs_params {
      /_ @offset(0) _/
      down_sample : i32,
      /_ @offset(16) _/
      colour : vec4f,
    }

    @group(1) @binding(64) var draw_text_src_texture : texture_2d<f32>;

    @group(1) @binding(80) var draw_text_src_sampler : sampler;

    var<private> uv : vec2f;

    @group(0) @binding(8) var<uniform> x_31 : draw_text_fs_params;

    var<private> frag_color : vec4f;

    fn main_1() {
      var alpha : f32;
      let x_22 : vec2f = uv;
      let x_24 : vec4f = textureSample(draw_text_src_texture, draw_text_src_sampler, x_22);
      alpha = x_24.x;
      let x_35 : i32 = x_31.down_sample;
      if ((x_35 == 1i)) {
        let x_44 : vec2f = uv;
        let x_49 : vec4f = textureSample(draw_text_src_texture, draw_text_src_sampler, (x_44 + vec2f(-0.000244140625f, -0.0009765625f)));
        let x_56 : vec2f = uv;
        let x_60 : vec4f = textureSample(draw_text_src_texture, draw_text_src_sampler, (x_56 + vec2f(-0.000244140625f, 0.0009765625f)));
        let x_67 : vec2f = uv;
        let x_71 : vec4f = textureSample(draw_text_src_texture, draw_text_src_sampler, (x_67 + vec2f(0.000244140625f, -0.0009765625f)));
        let x_78 : vec2f = uv;
        let x_81 : vec4f = textureSample(draw_text_src_texture, draw_text_src_sampler, (x_78 + vec2f(0.000244140625f, 0.0009765625f)));
        alpha = ((((x_49.x * 0.25f) + (x_60.x * 0.25f)) + (x_71.x * 0.25f)) + (x_81.x * 0.25f));
      }
      let x_90 : vec4f = x_31.colour;
      let x_91 : vec3f = vec3f(x_90.x, x_90.y, x_90.z);
      let x_95 : f32 = x_31.colour.w;
      let x_96 : f32 = alpha;
      frag_color = vec4f(x_91.x, x_91.y, x_91.z, (x_95 * x_96));
      return;
    }

    struct main_out {
      @location(0)
      frag_color_1 : vec4f,
    }

    @fragment
    fn main(@location(0) uv_param : vec2f) -> main_out {
      uv = uv_param;
      main_1();
      return main_out(frag_color);
    }

*/
@(private="file")
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}
draw_text_shader_desc :: proc (backend: sg.Backend) -> sg.Shader_Desc {
    desc: sg.Shader_Desc
    desc.label = "draw_text_shader"
    #partial switch backend {
    case .GLCORE:
        desc.vertex_func.source = transmute(cstring)&draw_text_vs_source_glsl410
        desc.vertex_func.entry = "main"
        desc.fragment_func.source = transmute(cstring)&draw_text_fs_source_glsl410
        desc.fragment_func.entry = "main"
        desc.attrs[0].glsl_name = "v_position"
        desc.attrs[1].glsl_name = "v_texture"
        desc.uniform_blocks[0].stage = .FRAGMENT
        desc.uniform_blocks[0].layout = .STD140
        desc.uniform_blocks[0].size = 32
        desc.uniform_blocks[0].glsl_uniforms[0].type = .INT
        desc.uniform_blocks[0].glsl_uniforms[0].array_count = 0
        desc.uniform_blocks[0].glsl_uniforms[0].glsl_name = "_31.down_sample"
        desc.uniform_blocks[0].glsl_uniforms[1].type = .FLOAT4
        desc.uniform_blocks[0].glsl_uniforms[1].array_count = 0
        desc.uniform_blocks[0].glsl_uniforms[1].glsl_name = "_31.colour"
        desc.images[0].stage = .FRAGMENT
        desc.images[0].multisampled = false
        desc.images[0].image_type = ._2D
        desc.images[0].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 = "draw_text_src_texture_draw_text_src_sampler"
    case .GLES3:
        desc.vertex_func.source = transmute(cstring)&draw_text_vs_source_glsl300es
        desc.vertex_func.entry = "main"
        desc.fragment_func.source = transmute(cstring)&draw_text_fs_source_glsl300es
        desc.fragment_func.entry = "main"
        desc.attrs[0].glsl_name = "v_position"
        desc.attrs[1].glsl_name = "v_texture"
        desc.uniform_blocks[0].stage = .FRAGMENT
        desc.uniform_blocks[0].layout = .STD140
        desc.uniform_blocks[0].size = 32
        desc.uniform_blocks[0].glsl_uniforms[0].type = .INT
        desc.uniform_blocks[0].glsl_uniforms[0].array_count = 0
        desc.uniform_blocks[0].glsl_uniforms[0].glsl_name = "_31.down_sample"
        desc.uniform_blocks[0].glsl_uniforms[1].type = .FLOAT4
        desc.uniform_blocks[0].glsl_uniforms[1].array_count = 0
        desc.uniform_blocks[0].glsl_uniforms[1].glsl_name = "_31.colour"
        desc.images[0].stage = .FRAGMENT
        desc.images[0].multisampled = false
        desc.images[0].image_type = ._2D
        desc.images[0].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 = "draw_text_src_texture_draw_text_src_sampler"
    case .D3D11:
        desc.vertex_func.source = transmute(cstring)&draw_text_vs_source_hlsl4
        desc.vertex_func.d3d11_target = "vs_4_0"
        desc.vertex_func.entry = "main"
        desc.fragment_func.source = transmute(cstring)&draw_text_fs_source_hlsl4
        desc.fragment_func.d3d11_target = "ps_4_0"
        desc.fragment_func.entry = "main"
        desc.attrs[0].hlsl_sem_name = "TEXCOORD"
        desc.attrs[0].hlsl_sem_index = 0
        desc.attrs[1].hlsl_sem_name = "TEXCOORD"
        desc.attrs[1].hlsl_sem_index = 1
        desc.uniform_blocks[0].stage = .FRAGMENT
        desc.uniform_blocks[0].layout = .STD140
        desc.uniform_blocks[0].size = 32
        desc.uniform_blocks[0].hlsl_register_b_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].hlsl_register_t_n = 0
        desc.samplers[0].stage = .FRAGMENT
        desc.samplers[0].sampler_type = .FILTERING
        desc.samplers[0].hlsl_register_s_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
    case .METAL_MACOS:
        desc.vertex_func.source = transmute(cstring)&draw_text_vs_source_metal_macos
        desc.vertex_func.entry = "main0"
        desc.fragment_func.source = transmute(cstring)&draw_text_fs_source_metal_macos
        desc.fragment_func.entry = "main0"
        desc.uniform_blocks[0].stage = .FRAGMENT
        desc.uniform_blocks[0].layout = .STD140
        desc.uniform_blocks[0].size = 32
        desc.uniform_blocks[0].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.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
    case .WGPU:
        desc.vertex_func.source = transmute(cstring)&draw_text_vs_source_wgsl
        desc.vertex_func.entry = "main"
        desc.fragment_func.source = transmute(cstring)&draw_text_fs_source_wgsl
        desc.fragment_func.entry = "main"
        desc.uniform_blocks[0].stage = .FRAGMENT
        desc.uniform_blocks[0].layout = .STD140
        desc.uniform_blocks[0].size = 32
        desc.uniform_blocks[0].wgsl_group0_binding_n = 8
        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].wgsl_group1_binding_n = 64
        desc.samplers[0].stage = .FRAGMENT
        desc.samplers[0].sampler_type = .FILTERING
        desc.samplers[0].wgsl_group1_binding_n = 80
        desc.image_sampler_pairs[0].stage = .FRAGMENT
        desc.image_sampler_pairs[0].image_slot = 0
        desc.image_sampler_pairs[0].sampler_slot = 0
    }
    return desc
}