127 lines
4.0 KiB
C++
127 lines
4.0 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> 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, height_factor);
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} // namespace uniforms
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using FillExtrusionLayoutAttributes = TypeList<
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attributes::pos,
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attributes::normal_ed>;
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using FillExtrusionUniforms = TypeList<
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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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using FillExtrusionPatternUniforms = TypeList<
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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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class FillExtrusionProgram : public Program<
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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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{
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public:
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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 {
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{{
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p.x,
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p.y
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}},
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{{
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// Multiply normal vector components by 2^14 to pack them into integers
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// We pack a bool (`t`) into the x component indicating 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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};
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}
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static LayoutUniformValues
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layoutUniformValues(mat4, const TransformState&, const float opacity, const EvaluatedLight&);
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};
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class FillExtrusionPatternProgram : public Program<
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FillExtrusionPatternProgram,
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gfx::PrimitiveType::Triangle,
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FillExtrusionLayoutAttributes,
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FillExtrusionPatternUniforms,
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TypeList<
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textures::image>,
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style::FillExtrusionPaintProperties>
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{
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public:
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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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const float opacity,
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const float heightFactor,
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const float pixelRatio,
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const EvaluatedLight&);
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};
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using FillExtrusionLayoutVertex = FillExtrusionProgram::LayoutVertex;
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using FillExtrusionAttributes = FillExtrusionProgram::AttributeList;
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class FillExtrusionLayerPrograms final : public LayerTypePrograms {
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public:
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FillExtrusionLayerPrograms(gfx::Context& context, const ProgramParameters& programParameters)
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: fillExtrusion(context, programParameters),
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fillExtrusionPattern(context, programParameters) {
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}
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FillExtrusionProgram fillExtrusion;
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FillExtrusionPatternProgram fillExtrusionPattern;
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};
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} // namespace mbgl
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