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path: root/src/mbgl/programs/fill_program.hpp
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#pragma once

#include <mbgl/programs/program.hpp>
#include <mbgl/programs/attributes.hpp>
#include <mbgl/programs/uniforms.hpp>
#include <mbgl/shader/fill.hpp>
#include <mbgl/shader/fill_pattern.hpp>
#include <mbgl/shader/fill_outline.hpp>
#include <mbgl/shader/fill_outline_pattern.hpp>
#include <mbgl/util/geometry.hpp>
#include <mbgl/util/mat4.hpp>
#include <mbgl/util/size.hpp>

#include <string>

namespace mbgl {

class SpriteAtlasPosition;
class UnwrappedTileID;
class TransformState;

namespace style {
template <class> class Faded;
} // namespace style

namespace uniforms {
MBGL_DEFINE_UNIFORM_SCALAR(Size,     u_world);
MBGL_DEFINE_UNIFORM_SCALAR(Color,    u_outline_color);
MBGL_DEFINE_UNIFORM_SCALAR(float,    u_scale_a);
MBGL_DEFINE_UNIFORM_SCALAR(float,    u_scale_b);
MBGL_DEFINE_UNIFORM_SCALAR(float,    u_tile_units_to_pixels);
MBGL_DEFINE_UNIFORM_VECTOR(float, 2, u_pixel_coord_upper);
MBGL_DEFINE_UNIFORM_VECTOR(float, 2, u_pixel_coord_lower);
} // namespace uniforms

struct FillAttributes : gl::Attributes<
    attributes::a_pos>
{
    static Vertex vertex(Point<int16_t> p) {
        return Vertex {
            {
                p.x,
                p.y
            }
        };
    }
};

using FillVertex = FillAttributes::Vertex;

struct FillUniforms : gl::Uniforms<
    uniforms::u_matrix,
    uniforms::u_opacity,
    uniforms::u_color,
    uniforms::u_outline_color,
    uniforms::u_world>
{};

struct FillPatternUniforms : gl::Uniforms<
    uniforms::u_matrix,
    uniforms::u_opacity,
    uniforms::u_world,
    uniforms::u_pattern_tl_a,
    uniforms::u_pattern_br_a,
    uniforms::u_pattern_tl_b,
    uniforms::u_pattern_br_b,
    uniforms::u_pattern_size_a,
    uniforms::u_pattern_size_b,
    uniforms::u_scale_a,
    uniforms::u_scale_b,
    uniforms::u_mix,
    uniforms::u_image,
    uniforms::u_pixel_coord_upper,
    uniforms::u_pixel_coord_lower,
    uniforms::u_tile_units_to_pixels>
{
    static Values values(mat4 matrix,
                         float opacity,
                         Size framebufferSize,
                         const SpriteAtlasPosition&,
                         const SpriteAtlasPosition&,
                         const style::Faded<std::string>&,
                         const UnwrappedTileID&,
                         const TransformState&);
};

class FillProgram : public Program<
    shaders::fill,
    gl::Triangle,
    FillAttributes,
    FillUniforms>
{
    using Program::Program;
};

class FillPatternProgram : public Program<
    shaders::fill_pattern,
    gl::Triangle,
    FillAttributes,
    FillPatternUniforms>
{
    using Program::Program;
};

class FillOutlineProgram : public Program<
    shaders::fill_outline,
    gl::Line,
    FillAttributes,
    FillUniforms>
{
    using Program::Program;
};

class FillOutlinePatternProgram : public Program<
    shaders::fill_outline_pattern,
    gl::Line,
    FillAttributes,
    FillPatternUniforms>
{
    using Program::Program;
};

} // namespace mbgl