76 lines
3.3 KiB
C++
76 lines
3.3 KiB
C++
#include <mbgl/programs/fill_extrusion_program.hpp>
|
|
#include <mbgl/renderer/image_atlas.hpp>
|
|
#include <mbgl/renderer/cross_faded_property_evaluator.hpp>
|
|
#include <mbgl/tile/tile_id.hpp>
|
|
#include <mbgl/map/transform_state.hpp>
|
|
#include <mbgl/util/mat3.hpp>
|
|
|
|
namespace mbgl {
|
|
|
|
using namespace style;
|
|
|
|
static_assert(sizeof(FillExtrusionLayoutVertex) == 12, "expected FillExtrusionLayoutVertex size");
|
|
|
|
std::array<float, 3> lightColor(const EvaluatedLight& light) {
|
|
const auto color = light.get<LightColor>();
|
|
return {{ color.r, color.g, color.b }};
|
|
}
|
|
|
|
std::array<float, 3> lightPosition(const EvaluatedLight& light, const TransformState& state) {
|
|
auto lightPos = light.get<LightPosition>().getCartesian();
|
|
mat3 lightMat;
|
|
matrix::identity(lightMat);
|
|
if (light.get<LightAnchor>() == LightAnchorType::Viewport) {
|
|
matrix::rotate(lightMat, lightMat, -state.getAngle());
|
|
}
|
|
matrix::transformMat3f(lightPos, lightPos, lightMat);
|
|
return lightPos;
|
|
}
|
|
|
|
float lightIntensity(const EvaluatedLight& light) {
|
|
return light.get<LightIntensity>();
|
|
}
|
|
|
|
FillExtrusionProgram::UniformValues
|
|
FillExtrusionProgram::uniformValues(mat4 matrix,
|
|
const TransformState& state,
|
|
const EvaluatedLight& light) {
|
|
return {
|
|
uniforms::u_matrix::Value( matrix ),
|
|
uniforms::u_lightcolor::Value( lightColor(light) ),
|
|
uniforms::u_lightpos::Value( lightPosition(light, state) ),
|
|
uniforms::u_lightintensity::Value( lightIntensity(light) )
|
|
};
|
|
}
|
|
|
|
FillExtrusionPatternProgram::UniformValues
|
|
FillExtrusionPatternProgram::uniformValues(mat4 matrix,
|
|
Size atlasSize,
|
|
const CrossfadeParameters& crossfade,
|
|
const UnwrappedTileID& tileID,
|
|
const TransformState& state,
|
|
const float heightFactor,
|
|
const float pixelRatio,
|
|
const EvaluatedLight& light) {
|
|
const auto tileRatio = 1 / tileID.pixelsToTileUnits(1, state.getIntegerZoom());
|
|
int32_t tileSizeAtNearestZoom = util::tileSize * state.zoomScale(state.getIntegerZoom() - tileID.canonical.z);
|
|
int32_t pixelX = tileSizeAtNearestZoom * (tileID.canonical.x + tileID.wrap * state.zoomScale(tileID.canonical.z));
|
|
int32_t pixelY = tileSizeAtNearestZoom * tileID.canonical.y;
|
|
|
|
return {
|
|
uniforms::u_matrix::Value( matrix ),
|
|
uniforms::u_scale::Value( {{pixelRatio, tileRatio, crossfade.fromScale, crossfade.toScale}} ),
|
|
uniforms::u_texsize::Value( atlasSize ),
|
|
uniforms::u_fade::Value( crossfade.t ),
|
|
uniforms::u_image::Value( 0 ),
|
|
uniforms::u_pixel_coord_upper::Value( std::array<float, 2>{{ float(pixelX >> 16), float(pixelY >> 16) }} ),
|
|
uniforms::u_pixel_coord_lower::Value( std::array<float, 2>{{ float(pixelX & 0xFFFF), float(pixelY & 0xFFFF) }} ),
|
|
uniforms::u_height_factor::Value( heightFactor ),
|
|
uniforms::u_lightcolor::Value( lightColor(light) ),
|
|
uniforms::u_lightpos::Value( lightPosition(light, state) ),
|
|
uniforms::u_lightintensity::Value( lightIntensity(light) ),
|
|
};
|
|
}
|
|
|
|
} // namespace mbgl
|