diff options
Diffstat (limited to 'src/mbgl/renderer/painters/painter_background.cpp')
-rw-r--r-- | src/mbgl/renderer/painters/painter_background.cpp | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/src/mbgl/renderer/painters/painter_background.cpp b/src/mbgl/renderer/painters/painter_background.cpp new file mode 100644 index 0000000000..fbd44b4480 --- /dev/null +++ b/src/mbgl/renderer/painters/painter_background.cpp @@ -0,0 +1,82 @@ +#include <mbgl/renderer/painter.hpp> +#include <mbgl/renderer/paint_parameters.hpp> +#include <mbgl/renderer/layers/render_background_layer.hpp> +#include <mbgl/style/layers/background_layer_impl.hpp> +#include <mbgl/programs/programs.hpp> +#include <mbgl/programs/fill_program.hpp> +#include <mbgl/sprite/sprite_atlas.hpp> +#include <mbgl/util/tile_cover.hpp> + +namespace mbgl { + +using namespace style; + +void Painter::renderBackground(PaintParameters& parameters, const RenderBackgroundLayer& layer) { + // Note that for bottommost layers without a pattern, the background color is drawn with + // glClear rather than this method. + const BackgroundPaintProperties::Evaluated& background = layer.evaluated; + + style::FillPaintProperties::Evaluated properties; + properties.get<FillPattern>() = background.get<BackgroundPattern>(); + properties.get<FillOpacity>() = { background.get<BackgroundOpacity>() }; + properties.get<FillColor>() = { background.get<BackgroundColor>() }; + + const FillProgram::PaintPropertyBinders paintAttibuteData(properties, 0); + + if (!background.get<BackgroundPattern>().to.empty()) { + optional<SpriteAtlasElement> imagePosA = spriteAtlas->getPattern(background.get<BackgroundPattern>().from); + optional<SpriteAtlasElement> imagePosB = spriteAtlas->getPattern(background.get<BackgroundPattern>().to); + + if (!imagePosA || !imagePosB) + return; + + spriteAtlas->bind(true, context, 0); + + for (const auto& tileID : util::tileCover(state, state.getIntegerZoom())) { + parameters.programs.fillPattern.draw( + context, + gl::Triangles(), + depthModeForSublayer(0, gl::DepthMode::ReadOnly), + gl::StencilMode::disabled(), + colorModeForRenderPass(), + FillPatternUniforms::values( + matrixForTile(tileID), + context.viewport.getCurrentValue().size, + *imagePosA, + *imagePosB, + background.get<BackgroundPattern>(), + tileID, + state + ), + tileVertexBuffer, + quadTriangleIndexBuffer, + tileTriangleSegments, + paintAttibuteData, + properties, + state.getZoom() + ); + } + } else { + for (const auto& tileID : util::tileCover(state, state.getIntegerZoom())) { + parameters.programs.fill.draw( + context, + gl::Triangles(), + depthModeForSublayer(0, gl::DepthMode::ReadOnly), + gl::StencilMode::disabled(), + colorModeForRenderPass(), + FillProgram::UniformValues { + uniforms::u_matrix::Value{ matrixForTile(tileID) }, + uniforms::u_world::Value{ context.viewport.getCurrentValue().size }, + }, + tileVertexBuffer, + quadTriangleIndexBuffer, + tileTriangleSegments, + paintAttibuteData, + properties, + state.getZoom() + ); + } + } +} + +} // namespace mbgl |