114 lines
5.4 KiB
C++
114 lines
5.4 KiB
C++
#pragma once
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#include <mbgl/programs/program.hpp>
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#include <mbgl/programs/attributes.hpp>
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#include <mbgl/programs/uniforms.hpp>
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#include <mbgl/programs/textures.hpp>
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#include <mbgl/util/geometry.hpp>
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#include <mbgl/util/mat4.hpp>
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#include <mbgl/util/size.hpp>
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#include <mbgl/style/layers/fill_extrusion_layer_properties.hpp>
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#include <mbgl/style/style.hpp>
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#include <mbgl/renderer/render_light.hpp>
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#include <string>
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namespace mbgl {
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class ImagePosition;
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class UnwrappedTileID;
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class TransformState;
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template <class>
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class Faded;
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namespace uniforms {
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MBGL_DEFINE_UNIFORM_VECTOR(float, 3, lightpos);
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MBGL_DEFINE_UNIFORM_VECTOR(float, 3, lightcolor);
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MBGL_DEFINE_UNIFORM_SCALAR(float, lightintensity);
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MBGL_DEFINE_UNIFORM_SCALAR(float, vertical_gradient);
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MBGL_DEFINE_UNIFORM_SCALAR(float, height_factor);
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} // namespace uniforms
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using FillExtrusionLayoutAttributes = TypeList<attributes::pos, attributes::normal_ed>;
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using FillExtrusionUniforms = TypeList<uniforms::matrix,
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uniforms::opacity,
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uniforms::lightcolor,
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uniforms::lightpos,
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uniforms::lightintensity,
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uniforms::vertical_gradient>;
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using FillExtrusionPatternUniforms = TypeList<uniforms::matrix,
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uniforms::opacity,
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uniforms::scale,
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uniforms::texsize,
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uniforms::fade,
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uniforms::pixel_coord_upper,
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uniforms::pixel_coord_lower,
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uniforms::height_factor,
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uniforms::lightcolor,
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uniforms::lightpos,
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uniforms::lightintensity,
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uniforms::vertical_gradient>;
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class FillExtrusionProgram final : public Program<FillExtrusionProgram,
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shaders::BuiltIn::FillExtrusionProgram,
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gfx::PrimitiveType::Triangle,
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FillExtrusionLayoutAttributes,
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FillExtrusionUniforms,
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TypeList<>,
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style::FillExtrusionPaintProperties> {
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public:
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static constexpr std::string_view Name{"FillExtrusionProgram"};
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const std::string_view typeName() const noexcept override { return Name; }
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using Program::Program;
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static LayoutVertex layoutVertex(Point<int16_t> p, double nx, double ny, double nz, unsigned short t, uint16_t e) {
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const auto factor = pow(2, 13);
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return LayoutVertex{{{p.x, p.y}},
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{{// Multiply normal vector components by 2^14 to pack them into
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// integers We pack a bool (`t`) into the x component indicating
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// whether it is an upper or lower vertex
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static_cast<int16_t>(floor(nx * factor) * 2 + t),
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static_cast<int16_t>(ny * factor * 2),
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static_cast<int16_t>(nz * factor * 2),
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// The edgedistance attribute is used for wrapping fill_extrusion patterns
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static_cast<int16_t>(e)}}};
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}
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static LayoutUniformValues layoutUniformValues(
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mat4, const TransformState&, float opacity, const EvaluatedLight&, float verticalGradient);
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};
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class FillExtrusionPatternProgram final : public Program<FillExtrusionPatternProgram,
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shaders::BuiltIn::FillExtrusionPatternProgram,
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gfx::PrimitiveType::Triangle,
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FillExtrusionLayoutAttributes,
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FillExtrusionPatternUniforms,
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TypeList<textures::image>,
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style::FillExtrusionPaintProperties> {
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public:
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static constexpr std::string_view Name{"FillExtrusionPatternProgram"};
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const std::string_view typeName() const noexcept override { return Name; }
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using Program::Program;
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static LayoutUniformValues layoutUniformValues(mat4,
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Size atlasSize,
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const CrossfadeParameters&,
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const UnwrappedTileID&,
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const TransformState&,
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float opacity,
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float heightFactor,
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float pixelRatio,
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const EvaluatedLight&,
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float verticalGradient);
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};
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using FillExtrusionLayoutVertex = FillExtrusionProgram::LayoutVertex;
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using FillExtrusionAttributes = FillExtrusionProgram::AttributeList;
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} // namespace mbgl
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