diff options
Diffstat (limited to 'src/mbgl/renderer/layers/render_background_layer.cpp')
| -rw-r--r-- | src/mbgl/renderer/layers/render_background_layer.cpp | 168 |
1 files changed, 86 insertions, 82 deletions
diff --git a/src/mbgl/renderer/layers/render_background_layer.cpp b/src/mbgl/renderer/layers/render_background_layer.cpp index db755adf0b..679b9f855a 100644 --- a/src/mbgl/renderer/layers/render_background_layer.cpp +++ b/src/mbgl/renderer/layers/render_background_layer.cpp @@ -27,6 +27,92 @@ RenderBackgroundLayer::RenderBackgroundLayer(Immutable<style::BackgroundLayer::I RenderBackgroundLayer::~RenderBackgroundLayer() = default; +LayerRenderer RenderBackgroundLayer::createRenderer() { + return [](PaintParameters& parameters, const LayerRenderItem& renderItem) { + // Note that for bottommost layers without a pattern, the background color is drawn with + // glClear rather than this method. + const auto& baseImpl = *renderItem.evaluatedProperties->baseImpl; + const auto& evaluated = getEvaluated<BackgroundLayerProperties>(renderItem.evaluatedProperties); + const auto& crossfade = getCrossfade<BackgroundLayerProperties>(renderItem.evaluatedProperties); + + const Properties<>::PossiblyEvaluated properties; + const BackgroundProgram::Binders paintAttributeData(properties, 0); + + auto draw = [&](auto& program, auto&& uniformValues, const auto& textureBindings, const UnwrappedTileID& id) { + const auto allUniformValues = program.computeAllUniformValues( + std::move(uniformValues), + paintAttributeData, + properties, + parameters.state.getZoom() + ); + const auto allAttributeBindings = program.computeAllAttributeBindings( + *parameters.staticData.tileVertexBuffer, + paintAttributeData, + properties + ); + + renderItem.checkRenderability(parameters, program.activeBindingCount(allAttributeBindings)); + + program.draw( + parameters.context, + *parameters.renderPass, + gfx::Triangles(), + parameters.depthModeForSublayer(0, gfx::DepthMaskType::ReadOnly), + gfx::StencilMode::disabled(), + parameters.colorModeForRenderPass(), + gfx::CullFaceMode::disabled(), + *parameters.staticData.quadTriangleIndexBuffer, + parameters.staticData.tileTriangleSegments, + allUniformValues, + allAttributeBindings, + textureBindings, + baseImpl.id + "/" + util::toString(id) + ); + }; + + if (!evaluated.get<BackgroundPattern>().to.empty()) { + optional<ImagePosition> imagePosA = parameters.patternAtlas.getPattern(evaluated.get<BackgroundPattern>().from); + optional<ImagePosition> imagePosB = parameters.patternAtlas.getPattern(evaluated.get<BackgroundPattern>().to); + + if (!imagePosA || !imagePosB) + return; + + for (const auto& tileID : util::tileCover(parameters.state, parameters.state.getIntegerZoom())) { + draw( + parameters.programs.getBackgroundLayerPrograms().backgroundPattern, + BackgroundPatternProgram::layoutUniformValues( + parameters.matrixForTile(tileID), + evaluated.get<BackgroundOpacity>(), + parameters.patternAtlas.getPixelSize(), + *imagePosA, + *imagePosB, + crossfade, + tileID, + parameters.state + ), + BackgroundPatternProgram::TextureBindings{ + textures::image::Value{ parameters.patternAtlas.textureBinding() }, + }, + tileID + ); + } + } else { + for (const auto& tileID : util::tileCover(parameters.state, parameters.state.getIntegerZoom())) { + draw( + parameters.programs.getBackgroundLayerPrograms().background, + BackgroundProgram::LayoutUniformValues { + uniforms::matrix::Value( parameters.matrixForTile(tileID) ), + uniforms::color::Value( evaluated.get<BackgroundColor>() ), + uniforms::opacity::Value( evaluated.get<BackgroundOpacity>() ), + }, + BackgroundProgram::TextureBindings{}, + tileID + ); + } + } + }; +} + void RenderBackgroundLayer::transition(const TransitionParameters ¶meters) { unevaluated = impl(baseImpl).paint.transitioned(parameters, std::move(unevaluated)); } @@ -50,88 +136,6 @@ bool RenderBackgroundLayer::hasCrossfade() const { return getCrossfade<BackgroundLayerProperties>(evaluatedProperties).t != 1; } -void RenderBackgroundLayer::render(PaintParameters& parameters) { - // Note that for bottommost layers without a pattern, the background color is drawn with - // glClear rather than this method. - - const Properties<>::PossiblyEvaluated properties; - const BackgroundProgram::Binders paintAttributeData(properties, 0); - - auto draw = [&](auto& program, auto&& uniformValues, const auto& textureBindings, const UnwrappedTileID& id) { - const auto allUniformValues = program.computeAllUniformValues( - std::move(uniformValues), - paintAttributeData, - properties, - parameters.state.getZoom() - ); - const auto allAttributeBindings = program.computeAllAttributeBindings( - *parameters.staticData.tileVertexBuffer, - paintAttributeData, - properties - ); - - checkRenderability(parameters, program.activeBindingCount(allAttributeBindings)); - - program.draw( - parameters.context, - *parameters.renderPass, - gfx::Triangles(), - parameters.depthModeForSublayer(0, gfx::DepthMaskType::ReadOnly), - gfx::StencilMode::disabled(), - parameters.colorModeForRenderPass(), - gfx::CullFaceMode::disabled(), - *parameters.staticData.quadTriangleIndexBuffer, - parameters.staticData.tileTriangleSegments, - allUniformValues, - allAttributeBindings, - textureBindings, - getID() + "/" + util::toString(id) - ); - }; - const auto& evaluated = static_cast<const BackgroundLayerProperties&>(*evaluatedProperties).evaluated; - const auto& crossfade = static_cast<const BackgroundLayerProperties&>(*evaluatedProperties).crossfade; - if (!evaluated.get<BackgroundPattern>().to.empty()) { - optional<ImagePosition> imagePosA = parameters.patternAtlas.getPattern(evaluated.get<BackgroundPattern>().from); - optional<ImagePosition> imagePosB = parameters.patternAtlas.getPattern(evaluated.get<BackgroundPattern>().to); - - if (!imagePosA || !imagePosB) - return; - - for (const auto& tileID : util::tileCover(parameters.state, parameters.state.getIntegerZoom())) { - draw( - parameters.programs.getBackgroundLayerPrograms().backgroundPattern, - BackgroundPatternProgram::layoutUniformValues( - parameters.matrixForTile(tileID), - evaluated.get<BackgroundOpacity>(), - parameters.patternAtlas.getPixelSize(), - *imagePosA, - *imagePosB, - crossfade, - tileID, - parameters.state - ), - BackgroundPatternProgram::TextureBindings{ - textures::image::Value{ parameters.patternAtlas.textureBinding() }, - }, - tileID - ); - } - } else { - for (const auto& tileID : util::tileCover(parameters.state, parameters.state.getIntegerZoom())) { - draw( - parameters.programs.getBackgroundLayerPrograms().background, - BackgroundProgram::LayoutUniformValues { - uniforms::matrix::Value( parameters.matrixForTile(tileID) ), - uniforms::color::Value( evaluated.get<BackgroundColor>() ), - uniforms::opacity::Value( evaluated.get<BackgroundOpacity>() ), - }, - BackgroundProgram::TextureBindings{}, - tileID - ); - } - } -} - optional<Color> RenderBackgroundLayer::getSolidBackground() const { const auto& evaluated = static_cast<const BackgroundLayerProperties&>(*evaluatedProperties).evaluated; if (!evaluated.get<BackgroundPattern>().from.empty()) { |