diff options
Diffstat (limited to 'src/mbgl/programs/heatmap_program.hpp')
-rw-r--r-- | src/mbgl/programs/heatmap_program.hpp | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/src/mbgl/programs/heatmap_program.hpp b/src/mbgl/programs/heatmap_program.hpp new file mode 100644 index 0000000000..2d9b80404f --- /dev/null +++ b/src/mbgl/programs/heatmap_program.hpp @@ -0,0 +1,49 @@ +#pragma once + +#include <mbgl/programs/program.hpp> +#include <mbgl/programs/attributes.hpp> +#include <mbgl/programs/uniforms.hpp> +#include <mbgl/shaders/heatmap.hpp> +#include <mbgl/util/geometry.hpp> +#include <mbgl/style/layers/heatmap_layer_properties.hpp> + +namespace mbgl { + +namespace uniforms { +MBGL_DEFINE_UNIFORM_SCALAR(float, u_intensity); +} // namespace uniforms + +class HeatmapProgram : public Program< + shaders::heatmap, + gl::Triangle, + gl::Attributes< + attributes::a_pos>, + gl::Uniforms< + uniforms::u_intensity, + uniforms::u_matrix, + uniforms::heatmap::u_extrude_scale>, + style::HeatmapPaintProperties> +{ +public: + using Program::Program; + + /* + * @param {number} x vertex position + * @param {number} y vertex position + * @param {number} ex extrude normal + * @param {number} ey extrude normal + */ + static LayoutVertex vertex(Point<int16_t> p, float ex, float ey) { + return LayoutVertex { + {{ + static_cast<int16_t>((p.x * 2) + ((ex + 1) / 2)), + static_cast<int16_t>((p.y * 2) + ((ey + 1) / 2)) + }} + }; + } +}; + +using HeatmapLayoutVertex = HeatmapProgram::LayoutVertex; +using HeatmapAttributes = HeatmapProgram::Attributes; + +} // namespace mbgl |