LineSDFProgram::UniformValues
LineSDFProgram::uniformValues(const RenderLinePaintProperties::PossiblyEvaluated& properties,
float pixelRatio,
const RenderTile& tile,
const TransformState& state,
const std::array<float, 2>& pixelsToGLUnits,
const LinePatternPos& posA,
const LinePatternPos& posB,
float atlasWidth) {
const float widthA = posA.width * properties.get<LineDasharray>().fromScale;
const float widthB = posB.width * properties.get<LineDasharray>().toScale;
std::array<float, 2> scaleA {{
1.0f / tile.id.pixelsToTileUnits(widthA, state.getIntegerZoom()),
-posA.height / 2.0f
}};
std::array<float, 2> scaleB {{
1.0f / tile.id.pixelsToTileUnits(widthB, state.getIntegerZoom()),
-posB.height / 2.0f
}};
return makeValues<LineSDFProgram::UniformValues>(
properties,
tile,
state,
pixelsToGLUnits,
uniforms::u_patternscale_a::Value{ scaleA },
uniforms::u_patternscale_b::Value{ scaleB },
uniforms::u_tex_y_a::Value{ posA.y },
uniforms::u_tex_y_b::Value{ posB.y },
uniforms::u_mix::Value{ properties.get<LineDasharray>().t },
uniforms::u_sdfgamma::Value{ atlasWidth / (std::min(widthA, widthB) * 256.0f * pixelRatio) / 2.0f },
uniforms::u_image::Value{ 0 }
);
}
LinePatternProgram::UniformValues
LinePatternProgram::uniformValues(const RenderLinePaintProperties::PossiblyEvaluated& properties,
const RenderTile& tile,
const TransformState& state,
const std::array<float, 2>& pixelsToGLUnits,
const Size atlasSize,
const ImagePosition& posA,
const ImagePosition& posB) {
std::array<float, 2> sizeA {{
tile.id.pixelsToTileUnits(posA.displaySize()[0] * properties.get<LinePattern>().fromScale, state.getIntegerZoom()),
posA.displaySize()[1]
}};
std::array<float, 2> sizeB {{
tile.id.pixelsToTileUnits(posB.displaySize()[0] * properties.get<LinePattern>().toScale, state.getIntegerZoom()),
posB.displaySize()[1]
}};
return makeValues<LinePatternProgram::UniformValues>(
properties,
tile,
state,
pixelsToGLUnits,
uniforms::u_pattern_tl_a::Value{ posA.tl() },
uniforms::u_pattern_br_a::Value{ posA.br() },
uniforms::u_pattern_tl_b::Value{ posB.tl() },
uniforms::u_pattern_br_b::Value{ posB.br() },
uniforms::u_pattern_size_a::Value{ sizeA },
uniforms::u_pattern_size_b::Value{ sizeB },
uniforms::u_texsize::Value{ atlasSize },
uniforms::u_fade::Value{ properties.get<LinePattern>().t },
uniforms::u_image::Value{ 0 }
);
}
