diff options
Diffstat (limited to 'src/mbgl/programs/collision_box_program.hpp')
| -rw-r--r-- | src/mbgl/programs/collision_box_program.hpp | 156 |
1 files changed, 136 insertions, 20 deletions
diff --git a/src/mbgl/programs/collision_box_program.hpp b/src/mbgl/programs/collision_box_program.hpp index ba99e0c087..8d712a3df3 100644 --- a/src/mbgl/programs/collision_box_program.hpp +++ b/src/mbgl/programs/collision_box_program.hpp @@ -4,6 +4,7 @@ #include <mbgl/programs/attributes.hpp> #include <mbgl/programs/uniforms.hpp> #include <mbgl/shaders/collision_box.hpp> +#include <mbgl/shaders/collision_circle.hpp> #include <mbgl/style/properties.hpp> #include <mbgl/util/geometry.hpp> @@ -11,37 +12,34 @@ namespace mbgl { -namespace uniforms { -MBGL_DEFINE_UNIFORM_SCALAR(float, u_scale); -MBGL_DEFINE_UNIFORM_SCALAR(float, u_maxzoom); -} // namespace uniforms - -using CollisionBoxAttributes = gl::Attributes< +using CollisionBoxLayoutAttributes = gl::Attributes< attributes::a_pos, attributes::a_anchor_pos, - attributes::a_extrude, - attributes::a_data<uint8_t, 2>>; + attributes::a_extrude>; + +struct CollisionBoxDynamicAttributes : gl::Attributes<attributes::a_placed> { + static Vertex vertex(bool placed, bool notUsed) { + return Vertex { + {{ static_cast<uint8_t>(placed), static_cast<uint8_t>(notUsed) }} + }; + } +}; class CollisionBoxProgram : public Program< shaders::collision_box, gl::Line, - CollisionBoxAttributes, + gl::ConcatenateAttributes<CollisionBoxLayoutAttributes, CollisionBoxDynamicAttributes>, gl::Uniforms< uniforms::u_matrix, - uniforms::u_scale, - uniforms::u_zoom, - uniforms::u_maxzoom, - uniforms::u_collision_y_stretch, - uniforms::u_camera_to_center_distance, - uniforms::u_pitch, - uniforms::u_fadetexture>, + uniforms::u_extrude_scale, + uniforms::u_camera_to_center_distance>, style::Properties<>> { public: using Program::Program; - static LayoutVertex vertex(Point<float> a, Point<float> anchor, Point<float> o, float maxzoom, float placementZoom) { - return LayoutVertex { + static CollisionBoxLayoutAttributes::Vertex vertex(Point<float> a, Point<float> anchor, Point<float> o) { + return CollisionBoxLayoutAttributes::Vertex { {{ static_cast<int16_t>(a.x), static_cast<int16_t>(a.y) @@ -53,13 +51,131 @@ public: {{ static_cast<int16_t>(::round(o.x)), static_cast<int16_t>(::round(o.y)) + }} + }; + } + + template <class DrawMode> + void draw(gl::Context& context, + DrawMode drawMode, + gl::DepthMode depthMode, + gl::StencilMode stencilMode, + gl::ColorMode colorMode, + const UniformValues& uniformValues, + const gl::VertexBuffer<CollisionBoxLayoutAttributes::Vertex>& layoutVertexBuffer, + const gl::VertexBuffer<CollisionBoxDynamicAttributes::Vertex>& dynamicVertexBuffer, + const gl::IndexBuffer<DrawMode>& indexBuffer, + const SegmentVector<Attributes>& segments, + const PaintPropertyBinders& paintPropertyBinders, + const typename PaintProperties::PossiblyEvaluated& currentProperties, + float currentZoom, + const std::string& layerID) { + typename AllUniforms::Values allUniformValues = uniformValues + .concat(paintPropertyBinders.uniformValues(currentZoom, currentProperties)); + + typename Attributes::Bindings allAttributeBindings = CollisionBoxLayoutAttributes::bindings(layoutVertexBuffer) + .concat(CollisionBoxDynamicAttributes::bindings(dynamicVertexBuffer)) + .concat(paintPropertyBinders.attributeBindings(currentProperties)); + + assert(layoutVertexBuffer.vertexCount == dynamicVertexBuffer.vertexCount); + + for (auto& segment : segments) { + auto vertexArrayIt = segment.vertexArrays.find(layerID); + + if (vertexArrayIt == segment.vertexArrays.end()) { + vertexArrayIt = segment.vertexArrays.emplace(layerID, context.createVertexArray()).first; + } + + program.draw( + context, + std::move(drawMode), + std::move(depthMode), + std::move(stencilMode), + std::move(colorMode), + allUniformValues, + vertexArrayIt->second, + Attributes::offsetBindings(allAttributeBindings, segment.vertexOffset), + indexBuffer, + segment.indexOffset, + segment.indexLength); + } + } +}; + + +class CollisionCircleProgram : public Program< + shaders::collision_circle, + gl::Triangle, + gl::ConcatenateAttributes<CollisionBoxLayoutAttributes, CollisionBoxDynamicAttributes>, + gl::Uniforms< + uniforms::u_matrix, + uniforms::u_extrude_scale, + uniforms::u_camera_to_center_distance>, + style::Properties<>> +{ +public: + using Program::Program; + + static CollisionBoxLayoutAttributes::Vertex vertex(Point<float> a, Point<float> anchor, Point<float> o) { + return CollisionBoxLayoutAttributes::Vertex { + {{ + static_cast<int16_t>(a.x), + static_cast<int16_t>(a.y) + }}, + {{ + static_cast<int16_t>(anchor.x), + static_cast<int16_t>(anchor.y) }}, {{ - static_cast<uint8_t>(maxzoom * 10), - static_cast<uint8_t>(placementZoom * 10) + static_cast<int16_t>(::round(o.x)), + static_cast<int16_t>(::round(o.y)) }} }; } + + template <class DrawMode> + void draw(gl::Context& context, + DrawMode drawMode, + gl::DepthMode depthMode, + gl::StencilMode stencilMode, + gl::ColorMode colorMode, + const UniformValues& uniformValues, + const gl::VertexBuffer<CollisionBoxLayoutAttributes::Vertex>& layoutVertexBuffer, + const gl::VertexBuffer<CollisionBoxDynamicAttributes::Vertex>& dynamicVertexBuffer, + const gl::IndexBuffer<DrawMode>& indexBuffer, + const SegmentVector<Attributes>& segments, + const PaintPropertyBinders& paintPropertyBinders, + const typename PaintProperties::PossiblyEvaluated& currentProperties, + float currentZoom, + const std::string& layerID) { + typename AllUniforms::Values allUniformValues = uniformValues + .concat(paintPropertyBinders.uniformValues(currentZoom, currentProperties)); + + typename Attributes::Bindings allAttributeBindings = CollisionBoxLayoutAttributes::bindings(layoutVertexBuffer) + .concat(CollisionBoxDynamicAttributes::bindings(dynamicVertexBuffer)) + .concat(paintPropertyBinders.attributeBindings(currentProperties)); + + for (auto& segment : segments) { + auto vertexArrayIt = segment.vertexArrays.find(layerID); + + if (vertexArrayIt == segment.vertexArrays.end()) { + vertexArrayIt = segment.vertexArrays.emplace(layerID, context.createVertexArray()).first; + } + + program.draw( + context, + std::move(drawMode), + std::move(depthMode), + std::move(stencilMode), + std::move(colorMode), + allUniformValues, + vertexArrayIt->second, + Attributes::offsetBindings(allAttributeBindings, segment.vertexOffset), + indexBuffer, + segment.indexOffset, + segment.indexLength); + } + } }; using CollisionBoxVertex = CollisionBoxProgram::LayoutVertex; |