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#pragma once
#include <mbgl/programs/program.hpp>
#include <mbgl/programs/attributes.hpp>
#include <mbgl/programs/uniforms.hpp>
#include <mbgl/shaders/symbol_icon.hpp>
#include <mbgl/shaders/symbol_sdf.hpp>
#include <mbgl/util/geometry.hpp>
#include <mbgl/util/size.hpp>
#include <mbgl/style/layers/symbol_layer_properties.hpp>
#include <mbgl/style/layers/symbol_layer_impl.hpp>
#include <cmath>
#include <array>
namespace mbgl {
namespace style {
class SymbolPropertyValues;
} // namespace style
class RenderTile;
class TransformState;
namespace uniforms {
MBGL_DEFINE_UNIFORM_VECTOR(float, 2, u_texsize);
MBGL_DEFINE_UNIFORM_SCALAR(bool, u_rotate_with_map);
MBGL_DEFINE_UNIFORM_SCALAR(bool, u_pitch_with_map);
MBGL_DEFINE_UNIFORM_SCALAR(gl::TextureUnit, u_texture);
MBGL_DEFINE_UNIFORM_SCALAR(gl::TextureUnit, u_fadetexture);
MBGL_DEFINE_UNIFORM_SCALAR(float, u_aspect_ratio);
MBGL_DEFINE_UNIFORM_SCALAR(bool, u_is_halo);
MBGL_DEFINE_UNIFORM_SCALAR(float, u_font_scale);
MBGL_DEFINE_UNIFORM_SCALAR(float, u_gamma_scale);
} // namespace uniforms
struct SymbolLayoutAttributes : gl::Attributes<
attributes::a_pos,
attributes::a_offset<2>,
attributes::a_texture_pos,
attributes::a_data<4>>
{
static Vertex vertex(Point<float> a,
Point<float> o,
uint16_t tx,
uint16_t ty,
float minzoom,
float maxzoom,
float labelminzoom,
uint8_t labelangle) {
return Vertex {
{{
static_cast<int16_t>(a.x),
static_cast<int16_t>(a.y)
}},
{{
static_cast<int16_t>(::round(o.x * 64)), // use 1/64 pixels for placement
static_cast<int16_t>(::round(o.y * 64))
}},
{{
static_cast<uint16_t>(tx / 4),
static_cast<uint16_t>(ty / 4)
}},
{{
static_cast<uint8_t>(labelminzoom * 10), // 1/10 zoom levels: z16 == 160
static_cast<uint8_t>(labelangle),
static_cast<uint8_t>(minzoom * 10),
static_cast<uint8_t>(::fmin(maxzoom, 25) * 10)
}}
};
}
};
class SymbolIconProgram : public Program<
shaders::symbol_icon,
gl::Triangle,
SymbolLayoutAttributes,
gl::Uniforms<
uniforms::u_matrix,
uniforms::u_extrude_scale,
uniforms::u_texsize,
uniforms::u_zoom,
uniforms::u_rotate_with_map,
uniforms::u_texture,
uniforms::u_fadetexture>,
style::IconPaintProperties>
{
public:
using Program::Program;
static UniformValues uniformValues(const style::SymbolPropertyValues&,
const Size& texsize,
const std::array<float, 2>& pixelsToGLUnits,
const RenderTile&,
const TransformState&);
};
enum class SymbolSDFPart {
Fill = 1,
Halo = 0
};
template <class PaintProperties>
class SymbolSDFProgram : public Program<
shaders::symbol_sdf,
gl::Triangle,
SymbolLayoutAttributes,
gl::Uniforms<
uniforms::u_matrix,
uniforms::u_extrude_scale,
uniforms::u_texsize,
uniforms::u_zoom,
uniforms::u_rotate_with_map,
uniforms::u_texture,
uniforms::u_fadetexture,
uniforms::u_font_scale,
uniforms::u_gamma_scale,
uniforms::u_pitch,
uniforms::u_bearing,
uniforms::u_aspect_ratio,
uniforms::u_pitch_with_map,
uniforms::u_is_halo>,
PaintProperties>
{
public:
using BaseProgram = Program<shaders::symbol_sdf,
gl::Triangle,
SymbolLayoutAttributes,
gl::Uniforms<
uniforms::u_matrix,
uniforms::u_extrude_scale,
uniforms::u_texsize,
uniforms::u_zoom,
uniforms::u_rotate_with_map,
uniforms::u_texture,
uniforms::u_fadetexture,
uniforms::u_font_scale,
uniforms::u_gamma_scale,
uniforms::u_pitch,
uniforms::u_bearing,
uniforms::u_aspect_ratio,
uniforms::u_pitch_with_map,
uniforms::u_is_halo>,
PaintProperties>;
using UniformValues = typename BaseProgram::UniformValues;
using BaseProgram::BaseProgram;
static UniformValues uniformValues(const style::SymbolPropertyValues&,
const Size& texsize,
const std::array<float, 2>& pixelsToGLUnits,
const RenderTile&,
const TransformState&,
const SymbolSDFPart);
};
using SymbolSDFIconProgram = SymbolSDFProgram<style::IconPaintProperties>;
using SymbolSDFTextProgram = SymbolSDFProgram<style::TextPaintProperties>;
using SymbolLayoutVertex = SymbolLayoutAttributes::Vertex;
using SymbolIconAttributes = SymbolIconProgram::Attributes;
using SymbolTextAttributes = SymbolSDFTextProgram::Attributes;
} // namespace mbgl
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