1 #include <mbgl/programs/fill_program.hpp>
2 #include <mbgl/renderer/image_atlas.hpp>
3 #include <mbgl/renderer/cross_faded_property_evaluator.hpp>
4 #include <mbgl/tile/tile_id.hpp>
5 #include <mbgl/map/transform_state.hpp>
6
7 namespace mbgl {
8
9 using namespace style;
10
11 static_assert(sizeof(FillLayoutVertex) == 4, "expected FillLayoutVertex size");
12
13 FillPatternUniforms::Values
values(mat4 matrix,Size framebufferSize,Size atlasSize,const ImagePosition & a,const ImagePosition & b,const Faded<std::string> & fading,const UnwrappedTileID & tileID,const TransformState & state)14 FillPatternUniforms::values(mat4 matrix,
15 Size framebufferSize,
16 Size atlasSize,
17 const ImagePosition& a,
18 const ImagePosition& b,
19 const Faded<std::string>& fading,
20 const UnwrappedTileID& tileID,
21 const TransformState& state)
22 {
23 int32_t tileSizeAtNearestZoom = util::tileSize * state.zoomScale(state.getIntegerZoom() - tileID.canonical.z);
24 int32_t pixelX = tileSizeAtNearestZoom * (tileID.canonical.x + tileID.wrap * state.zoomScale(tileID.canonical.z));
25 int32_t pixelY = tileSizeAtNearestZoom * tileID.canonical.y;
26
27 return FillPatternUniforms::Values {
28 uniforms::u_matrix::Value{ matrix },
29 uniforms::u_world::Value{ framebufferSize },
30 uniforms::u_texsize::Value{ atlasSize },
31 uniforms::u_pattern_tl_a::Value{ a.tl() },
32 uniforms::u_pattern_br_a::Value{ a.br() },
33 uniforms::u_pattern_tl_b::Value{ b.tl() },
34 uniforms::u_pattern_br_b::Value{ b.br() },
35 uniforms::u_pattern_size_a::Value{ a.displaySize() },
36 uniforms::u_pattern_size_b::Value{ b.displaySize() },
37 uniforms::u_scale_a::Value{ fading.fromScale },
38 uniforms::u_scale_b::Value{ fading.toScale },
39 uniforms::u_mix::Value{ fading.t },
40 uniforms::u_image::Value{ 0 },
41 uniforms::u_pixel_coord_upper::Value{ std::array<float, 2> {{ float(pixelX >> 16), float(pixelY >> 16) }} },
42 uniforms::u_pixel_coord_lower::Value{ std::array<float, 2> {{ float(pixelX & 0xFFFF), float(pixelY & 0xFFFF) }} },
43 uniforms::u_tile_units_to_pixels::Value{ 1.0f / tileID.pixelsToTileUnits(1.0f, state.getIntegerZoom()) },
44 };
45 }
46
47 } // namespace mbgl
48