void RenderHeatmapLayer::render(PaintParameters& parameters, RenderSource*) {
if (parameters.pass == RenderPass::Opaque) {
return;
}
if (parameters.pass == RenderPass::Pass3D) {
const auto& viewportSize = parameters.staticData.backendSize;
const auto size = Size{viewportSize.width / 4, viewportSize.height / 4};
if (!renderTexture || renderTexture->getSize() != size) {
if (parameters.context.supportsHalfFloatTextures) {
renderTexture = OffscreenTexture(parameters.context, size, gl::TextureType::HalfFloat);
try {
renderTexture->bind();
} catch (const std::runtime_error& ex) {
// can't render to a half-float texture; falling back to unsigned byte one
renderTexture = nullopt;
parameters.context.supportsHalfFloatTextures = false;
}
}
if (!parameters.context.supportsHalfFloatTextures || !renderTexture) {
renderTexture = OffscreenTexture(parameters.context, size, gl::TextureType::UnsignedByte);
renderTexture->bind();
}
} else {
renderTexture->bind();
}
if (!colorRampTexture) {
colorRampTexture = parameters.context.createTexture(colorRamp, 1, gl::TextureType::UnsignedByte);
}
parameters.context.clear(Color{ 0.0f, 0.0f, 0.0f, 1.0f }, {}, {});
for (const RenderTile& tile : renderTiles) {
auto bucket_ = tile.tile.getBucket<HeatmapBucket>(*baseImpl);
if (!bucket_) {
continue;
}
HeatmapBucket& bucket = *bucket_;
const auto extrudeScale = tile.id.pixelsToTileUnits(1, parameters.state.getZoom());
const auto stencilMode = parameters.mapMode != MapMode::Continuous
? parameters.stencilModeForClipping(tile.clip)
: gl::StencilMode::disabled();
const auto& paintPropertyBinders = bucket.paintPropertyBinders.at(getID());
auto& programInstance = parameters.programs.heatmap.get(evaluated);
const auto allUniformValues = programInstance.computeAllUniformValues(
HeatmapProgram::UniformValues {
uniforms::u_intensity::Value( evaluated.get<style::HeatmapIntensity>() ),
uniforms::u_matrix::Value( tile.matrix ),
uniforms::heatmap::u_extrude_scale::Value( extrudeScale )
},
paintPropertyBinders,
evaluated,
parameters.state.getZoom()
);
const auto allAttributeBindings = programInstance.computeAllAttributeBindings(
*bucket.vertexBuffer,
paintPropertyBinders,
evaluated
);
checkRenderability(parameters, programInstance.activeBindingCount(allAttributeBindings));
programInstance.draw(
parameters.context,
gl::Triangles(),
parameters.depthModeForSublayer(0, gl::DepthMode::ReadOnly),
stencilMode,
gl::ColorMode::additive(),
gl::CullFaceMode::disabled(),
*bucket.indexBuffer,
bucket.segments,
allUniformValues,
allAttributeBindings,
getID()
);
}
} else if (parameters.pass == RenderPass::Translucent) {
parameters.context.bindTexture(renderTexture->getTexture(), 0, gl::TextureFilter::Linear);
parameters.context.bindTexture(*colorRampTexture, 1, gl::TextureFilter::Linear);
const auto& size = parameters.staticData.backendSize;
mat4 viewportMat;
matrix::ortho(viewportMat, 0, size.width, size.height, 0, 0, 1);
const Properties<>::PossiblyEvaluated properties;
const HeatmapTextureProgram::PaintPropertyBinders paintAttributeData{ properties, 0 };
auto& programInstance = parameters.programs.heatmapTexture;
const auto allUniformValues = programInstance.computeAllUniformValues(
HeatmapTextureProgram::UniformValues{
uniforms::u_matrix::Value( viewportMat ), uniforms::u_world::Value( size ),
uniforms::u_image::Value( 0 ),
uniforms::u_color_ramp::Value( 1 ),
uniforms::u_opacity::Value( evaluated.get<HeatmapOpacity>() )
},
paintAttributeData,
properties,
parameters.state.getZoom()
);
const auto allAttributeBindings = programInstance.computeAllAttributeBindings(
parameters.staticData.extrusionTextureVertexBuffer,
paintAttributeData,
properties
);
checkRenderability(parameters, programInstance.activeBindingCount(allAttributeBindings));
programInstance.draw(
parameters.context,
gl::Triangles(),
gl::DepthMode::disabled(),
gl::StencilMode::disabled(),
parameters.colorModeForRenderPass(),
gl::CullFaceMode::disabled(),
parameters.staticData.quadTriangleIndexBuffer,
parameters.staticData.extrusionTextureSegments,
allUniformValues,
allAttributeBindings,
getID()
);
}
}
void RenderRasterLayer::render(PaintParameters& parameters, RenderSource* source) {
if (parameters.pass != RenderPass::Translucent)
return;
auto draw = [&] (const mat4& matrix,
const auto& vertexBuffer,
const auto& indexBuffer,
const auto& segments) {
parameters.programs.raster.draw(
parameters.context,
gl::Triangles(),
parameters.depthModeForSublayer(0, gl::DepthMode::ReadOnly),
gl::StencilMode::disabled(),
parameters.colorModeForRenderPass(),
RasterProgram::UniformValues {
uniforms::u_matrix::Value{ matrix },
uniforms::u_image0::Value{ 0 },
uniforms::u_image1::Value{ 1 },
uniforms::u_opacity::Value{ evaluated.get<RasterOpacity>() },
uniforms::u_fade_t::Value{ 1 },
uniforms::u_brightness_low::Value{ evaluated.get<RasterBrightnessMin>() },
uniforms::u_brightness_high::Value{ evaluated.get<RasterBrightnessMax>() },
uniforms::u_saturation_factor::Value{ saturationFactor(evaluated.get<RasterSaturation>()) },
uniforms::u_contrast_factor::Value{ contrastFactor(evaluated.get<RasterContrast>()) },
uniforms::u_spin_weights::Value{ spinWeights(evaluated.get<RasterHueRotate>()) },
uniforms::u_buffer_scale::Value{ 1.0f },
uniforms::u_scale_parent::Value{ 1.0f },
uniforms::u_tl_parent::Value{ std::array<float, 2> {{ 0.0f, 0.0f }} },
},
vertexBuffer,
indexBuffer,
segments,
RasterProgram::PaintPropertyBinders { evaluated, 0 },
evaluated,
parameters.state.getZoom(),
getID()
);
};
if (RenderImageSource* imageSource = source->as<RenderImageSource>()) {
if (imageSource->isEnabled() && imageSource->isLoaded() && !imageSource->bucket->needsUpload()) {
RasterBucket& bucket = *imageSource->bucket;
assert(bucket.texture);
parameters.context.bindTexture(*bucket.texture, 0, gl::TextureFilter::Linear);
parameters.context.bindTexture(*bucket.texture, 1, gl::TextureFilter::Linear);
for (auto matrix_ : imageSource->matrices) {
draw(matrix_,
*bucket.vertexBuffer,
*bucket.indexBuffer,
bucket.segments);
}
}
} else {
for (const RenderTile& tile : renderTiles) {
assert(dynamic_cast<RasterBucket*>(tile.tile.getBucket(*baseImpl)));
RasterBucket& bucket = *reinterpret_cast<RasterBucket*>(tile.tile.getBucket(*baseImpl));
if (!bucket.hasData())
continue;
assert(bucket.texture);
parameters.context.bindTexture(*bucket.texture, 0, gl::TextureFilter::Linear);
parameters.context.bindTexture(*bucket.texture, 1, gl::TextureFilter::Linear);
if (bucket.vertexBuffer && bucket.indexBuffer && !bucket.segments.empty()) {
// Draw only the parts of the tile that aren't drawn by another tile in the layer.
draw(tile.matrix,
*bucket.vertexBuffer,
*bucket.indexBuffer,
bucket.segments);
} else {
// Draw the full tile.
draw(tile.matrix,
parameters.staticData.rasterVertexBuffer,
parameters.staticData.quadTriangleIndexBuffer,
parameters.staticData.rasterSegments);
}
}
}
}
void RenderRasterLayer::render(PaintParameters& parameters) {
if (parameters.pass != RenderPass::Translucent)
return;
const auto& evaluated = static_cast<const RasterLayerProperties&>(*evaluatedProperties).evaluated;
RasterProgram::Binders paintAttributeData{ evaluated, 0 };
auto draw = [&] (const mat4& matrix,
const auto& vertexBuffer,
const auto& indexBuffer,
const auto& segments,
const auto& textureBindings,
const std::string& drawScopeID) {
auto& programInstance = parameters.programs.getRasterLayerPrograms().raster;
const auto allUniformValues = programInstance.computeAllUniformValues(
RasterProgram::LayoutUniformValues {
uniforms::matrix::Value( matrix ),
uniforms::opacity::Value( evaluated.get<RasterOpacity>() ),
uniforms::fade_t::Value( 1 ),
uniforms::brightness_low::Value( evaluated.get<RasterBrightnessMin>() ),
uniforms::brightness_high::Value( evaluated.get<RasterBrightnessMax>() ),
uniforms::saturation_factor::Value( saturationFactor(evaluated.get<RasterSaturation>()) ),
uniforms::contrast_factor::Value( contrastFactor(evaluated.get<RasterContrast>()) ),
uniforms::spin_weights::Value( spinWeights(evaluated.get<RasterHueRotate>()) ),
uniforms::buffer_scale::Value( 1.0f ),
uniforms::scale_parent::Value( 1.0f ),
uniforms::tl_parent::Value( std::array<float, 2> {{ 0.0f, 0.0f }} ),
},
paintAttributeData,
evaluated,
parameters.state.getZoom()
);
const auto allAttributeBindings = programInstance.computeAllAttributeBindings(
vertexBuffer,
paintAttributeData,
evaluated
);
checkRenderability(parameters, programInstance.activeBindingCount(allAttributeBindings));
programInstance.draw(
parameters.context,
*parameters.renderPass,
gfx::Triangles(),
parameters.depthModeForSublayer(0, gfx::DepthMaskType::ReadOnly),
gfx::StencilMode::disabled(),
parameters.colorModeForRenderPass(),
gfx::CullFaceMode::disabled(),
indexBuffer,
segments,
allUniformValues,
allAttributeBindings,
textureBindings,
getID() + "/" + drawScopeID
);
};
const gfx::TextureFilterType filter = evaluated.get<RasterResampling>() == RasterResamplingType::Nearest ? gfx::TextureFilterType::Nearest : gfx::TextureFilterType::Linear;
if (imageData && !imageData->bucket->needsUpload()) {
RasterBucket& bucket = *imageData->bucket;
assert(bucket.texture);
size_t i = 0;
for (const auto& matrix_ : *imageData->matrices) {
draw(matrix_,
*bucket.vertexBuffer,
*bucket.indexBuffer,
bucket.segments,
RasterProgram::TextureBindings{
textures::image0::Value{ bucket.texture->getResource(), filter },
textures::image1::Value{ bucket.texture->getResource(), filter },
},
bucket.drawScopeID + std::to_string(i++));
}
} else {
for (const RenderTile& tile : renderTiles) {
auto* bucket_ = tile.getBucket(*baseImpl);
if (!bucket_) {
continue;
}
auto& bucket = static_cast<RasterBucket&>(*bucket_);
if (!bucket.hasData())
continue;
assert(bucket.texture);
if (bucket.vertexBuffer && bucket.indexBuffer && !bucket.segments.empty()) {
// Draw only the parts of the tile that aren't drawn by another tile in the layer.
draw(parameters.matrixForTile(tile.id, true),
*bucket.vertexBuffer,
*bucket.indexBuffer,
bucket.segments,
RasterProgram::TextureBindings{
textures::image0::Value{ bucket.texture->getResource(), filter },
textures::image1::Value{ bucket.texture->getResource(), filter },
},
bucket.drawScopeID);
} else {
// Draw the full tile.
draw(parameters.matrixForTile(tile.id, true),
*parameters.staticData.rasterVertexBuffer,
*parameters.staticData.quadTriangleIndexBuffer,
parameters.staticData.rasterSegments,
RasterProgram::TextureBindings{
textures::image0::Value{ bucket.texture->getResource(), filter },
textures::image1::Value{ bucket.texture->getResource(), filter },
},
bucket.drawScopeID);
}
}
}
}
void RenderHillshadeLayer::render(PaintParameters& parameters) {
if (parameters.pass != RenderPass::Translucent && parameters.pass != RenderPass::Pass3D)
return;
const auto& evaluated = static_cast<const HillshadeLayerProperties&>(*evaluatedProperties).evaluated;
auto draw = [&] (const mat4& matrix,
const auto& vertexBuffer,
const auto& indexBuffer,
const auto& segments,
const UnwrappedTileID& id,
const auto& textureBindings) {
auto& programInstance = parameters.programs.getHillshadeLayerPrograms().hillshade;
const HillshadeProgram::Binders paintAttributeData{ evaluated, 0 };
const auto allUniformValues = programInstance.computeAllUniformValues(
HillshadeProgram::LayoutUniformValues {
uniforms::matrix::Value( matrix ),
uniforms::highlight::Value( evaluated.get<HillshadeHighlightColor>() ),
uniforms::shadow::Value( evaluated.get<HillshadeShadowColor>() ),
uniforms::accent::Value( evaluated.get<HillshadeAccentColor>() ),
uniforms::light::Value( getLight(parameters) ),
uniforms::latrange::Value( getLatRange(id) ),
},
paintAttributeData,
evaluated,
parameters.state.getZoom()
);
const auto allAttributeBindings = programInstance.computeAllAttributeBindings(
vertexBuffer,
paintAttributeData,
evaluated
);
checkRenderability(parameters, programInstance.activeBindingCount(allAttributeBindings));
programInstance.draw(
parameters.context,
*parameters.renderPass,
gfx::Triangles(),
parameters.depthModeForSublayer(0, gfx::DepthMaskType::ReadOnly),
gfx::StencilMode::disabled(),
parameters.colorModeForRenderPass(),
gfx::CullFaceMode::disabled(),
indexBuffer,
segments,
allUniformValues,
allAttributeBindings,
textureBindings,
getID()
);
};
mat4 mat;
matrix::ortho(mat, 0, util::EXTENT, -util::EXTENT, 0, 0, 1);
matrix::translate(mat, mat, 0, -util::EXTENT, 0);
for (const RenderTile& tile : renderTiles) {
auto* bucket_ = tile.getBucket(*baseImpl);
if (!bucket_) {
continue;
}
auto& bucket = static_cast<HillshadeBucket&>(*bucket_);
if (!bucket.hasData()){
continue;
}
if (!bucket.isPrepared() && parameters.pass == RenderPass::Pass3D) {
assert(bucket.dem);
const uint16_t stride = bucket.getDEMData().stride;
const uint16_t tilesize = bucket.getDEMData().dim;
auto view = parameters.context.createOffscreenTexture({ tilesize, tilesize });
auto renderPass = parameters.encoder->createRenderPass(
"hillshade prepare", { *view, Color{ 0.0f, 0.0f, 0.0f, 0.0f }, {}, {} });
const Properties<>::PossiblyEvaluated properties;
const HillshadePrepareProgram::Binders paintAttributeData{ properties, 0 };
auto& programInstance = parameters.programs.getHillshadeLayerPrograms().hillshadePrepare;
const auto allUniformValues = programInstance.computeAllUniformValues(
HillshadePrepareProgram::LayoutUniformValues {
uniforms::matrix::Value( mat ),
uniforms::dimension::Value( {{stride, stride}} ),
uniforms::zoom::Value( float(tile.id.canonical.z) ),
uniforms::maxzoom::Value( float(maxzoom) ),
},
paintAttributeData,
properties,
parameters.state.getZoom()
);
const auto allAttributeBindings = programInstance.computeAllAttributeBindings(
*parameters.staticData.rasterVertexBuffer,
paintAttributeData,
properties
);
checkRenderability(parameters, programInstance.activeBindingCount(allAttributeBindings));
programInstance.draw(
parameters.context,
*renderPass,
gfx::Triangles(),
parameters.depthModeForSublayer(0, gfx::DepthMaskType::ReadOnly),
gfx::StencilMode::disabled(),
parameters.colorModeForRenderPass(),
gfx::CullFaceMode::disabled(),
*parameters.staticData.quadTriangleIndexBuffer,
parameters.staticData.rasterSegments,
allUniformValues,
allAttributeBindings,
HillshadePrepareProgram::TextureBindings{
textures::image::Value{ bucket.dem->getResource() },
},
getID()
);
bucket.texture = std::move(view->getTexture());
bucket.setPrepared(true);
} else if (parameters.pass == RenderPass::Translucent) {
assert(bucket.texture);
if (bucket.vertexBuffer && bucket.indexBuffer && !bucket.segments.empty()) {
// Draw only the parts of the tile that aren't drawn by another tile in the layer.
draw(parameters.matrixForTile(tile.id, true),
*bucket.vertexBuffer,
*bucket.indexBuffer,
bucket.segments,
tile.id,
HillshadeProgram::TextureBindings{
textures::image::Value{ bucket.texture->getResource(), gfx::TextureFilterType::Linear },
});
} else {
// Draw the full tile.
draw(parameters.matrixForTile(tile.id, true),
*parameters.staticData.rasterVertexBuffer,
*parameters.staticData.quadTriangleIndexBuffer,
parameters.staticData.rasterSegments,
tile.id,
HillshadeProgram::TextureBindings{
textures::image::Value{ bucket.texture->getResource(), gfx::TextureFilterType::Linear },
});
}
}
}
}
void RenderTile::finishRender(PaintParameters& parameters) {
if (!used || parameters.debugOptions == MapDebugOptions::NoDebug)
return;
static const style::Properties<>::PossiblyEvaluated properties {};
static const DebugProgram::PaintPropertyBinders paintAttributeData(properties, 0);
auto& program = parameters.programs.debug;
if (parameters.debugOptions & (MapDebugOptions::Timestamps | MapDebugOptions::ParseStatus)) {
if (!tile.debugBucket || tile.debugBucket->renderable != tile.isRenderable() ||
tile.debugBucket->complete != tile.isComplete() ||
!(tile.debugBucket->modified == tile.modified) ||
!(tile.debugBucket->expires == tile.expires) ||
tile.debugBucket->debugMode != parameters.debugOptions) {
tile.debugBucket = std::make_unique<DebugBucket>(
tile.id, tile.isRenderable(), tile.isComplete(), tile.modified,
tile.expires, parameters.debugOptions, parameters.context);
}
const auto allAttributeBindings = program.computeAllAttributeBindings(
*tile.debugBucket->vertexBuffer,
paintAttributeData,
properties
);
program.draw(
parameters.context,
gl::Lines { 4.0f * parameters.pixelRatio },
gl::DepthMode::disabled(),
parameters.stencilModeForClipping(clip),
gl::ColorMode::unblended(),
gl::CullFaceMode::disabled(),
*tile.debugBucket->indexBuffer,
tile.debugBucket->segments,
program.computeAllUniformValues(
DebugProgram::UniformValues {
uniforms::u_matrix::Value( matrix ),
uniforms::u_color::Value( Color::white() )
},
paintAttributeData,
properties,
parameters.state.getZoom()
),
allAttributeBindings,
"debug"
);
program.draw(
parameters.context,
gl::Lines { 2.0f * parameters.pixelRatio },
gl::DepthMode::disabled(),
parameters.stencilModeForClipping(clip),
gl::ColorMode::unblended(),
gl::CullFaceMode::disabled(),
*tile.debugBucket->indexBuffer,
tile.debugBucket->segments,
program.computeAllUniformValues(
DebugProgram::UniformValues {
uniforms::u_matrix::Value( matrix ),
uniforms::u_color::Value( Color::black() )
},
paintAttributeData,
properties,
parameters.state.getZoom()
),
allAttributeBindings,
"debug"
);
}
if (parameters.debugOptions & MapDebugOptions::TileBorders) {
parameters.programs.debug.draw(
parameters.context,
gl::LineStrip { 4.0f * parameters.pixelRatio },
gl::DepthMode::disabled(),
parameters.stencilModeForClipping(clip),
gl::ColorMode::unblended(),
gl::CullFaceMode::disabled(),
parameters.staticData.tileBorderIndexBuffer,
parameters.staticData.tileBorderSegments,
program.computeAllUniformValues(
DebugProgram::UniformValues {
uniforms::u_matrix::Value( matrix ),
uniforms::u_color::Value( Color::red() )
},
paintAttributeData,
properties,
parameters.state.getZoom()
),
program.computeAllAttributeBindings(
parameters.staticData.tileVertexBuffer,
paintAttributeData,
properties
),
"debug"
);
}
}
void RenderFillLayer::render(PaintParameters& parameters, RenderSource*) {
if (evaluated.get<FillPattern>().from.empty()) {
for (const RenderTile& tile : renderTiles) {
assert(dynamic_cast<FillBucket*>(tile.tile.getBucket(*baseImpl)));
FillBucket& bucket = *reinterpret_cast<FillBucket*>(tile.tile.getBucket(*baseImpl));
auto draw = [&] (auto& program,
const auto& drawMode,
const auto& depthMode,
const auto& indexBuffer,
const auto& segments) {
program.get(evaluated).draw(
parameters.context,
drawMode,
depthMode,
parameters.stencilModeForClipping(tile.clip),
parameters.colorModeForRenderPass(),
FillProgram::UniformValues {
uniforms::u_matrix::Value{
tile.translatedMatrix(evaluated.get<FillTranslate>(),
evaluated.get<FillTranslateAnchor>(),
parameters.state)
},
uniforms::u_world::Value{ parameters.context.viewport.getCurrentValue().size },
},
*bucket.vertexBuffer,
indexBuffer,
segments,
bucket.paintPropertyBinders.at(getID()),
evaluated,
parameters.state.getZoom(),
getID()
);
};
// Only draw the fill when it's opaque and we're drawing opaque fragments,
// or when it's translucent and we're drawing translucent fragments.
if ((evaluated.get<FillColor>().constantOr(Color()).a >= 1.0f
&& evaluated.get<FillOpacity>().constantOr(0) >= 1.0f) == (parameters.pass == RenderPass::Opaque)) {
draw(parameters.programs.fill,
gl::Triangles(),
parameters.depthModeForSublayer(1, parameters.pass == RenderPass::Opaque
? gl::DepthMode::ReadWrite
: gl::DepthMode::ReadOnly),
*bucket.triangleIndexBuffer,
bucket.triangleSegments);
}
if (evaluated.get<FillAntialias>() && parameters.pass == RenderPass::Translucent) {
draw(parameters.programs.fillOutline,
gl::Lines{ 2.0f },
parameters.depthModeForSublayer(
unevaluated.get<FillOutlineColor>().isUndefined() ? 2 : 0,
gl::DepthMode::ReadOnly),
*bucket.lineIndexBuffer,
bucket.lineSegments);
}
}
} else {
if (parameters.pass != RenderPass::Translucent) {
return;
}
optional<ImagePosition> imagePosA = parameters.imageManager.getPattern(evaluated.get<FillPattern>().from);
optional<ImagePosition> imagePosB = parameters.imageManager.getPattern(evaluated.get<FillPattern>().to);
if (!imagePosA || !imagePosB) {
return;
}
parameters.imageManager.bind(parameters.context, 0);
for (const RenderTile& tile : renderTiles) {
assert(dynamic_cast<FillBucket*>(tile.tile.getBucket(*baseImpl)));
FillBucket& bucket = *reinterpret_cast<FillBucket*>(tile.tile.getBucket(*baseImpl));
auto draw = [&] (auto& program,
const auto& drawMode,
const auto& depthMode,
const auto& indexBuffer,
const auto& segments) {
program.get(evaluated).draw(
parameters.context,
drawMode,
depthMode,
parameters.stencilModeForClipping(tile.clip),
parameters.colorModeForRenderPass(),
FillPatternUniforms::values(
tile.translatedMatrix(evaluated.get<FillTranslate>(),
evaluated.get<FillTranslateAnchor>(),
parameters.state),
parameters.context.viewport.getCurrentValue().size,
parameters.imageManager.getPixelSize(),
*imagePosA,
*imagePosB,
evaluated.get<FillPattern>(),
tile.id,
parameters.state
),
*bucket.vertexBuffer,
indexBuffer,
segments,
bucket.paintPropertyBinders.at(getID()),
evaluated,
parameters.state.getZoom(),
getID()
);
};
draw(parameters.programs.fillPattern,
gl::Triangles(),
parameters.depthModeForSublayer(1, gl::DepthMode::ReadWrite),
*bucket.triangleIndexBuffer,
bucket.triangleSegments);
if (evaluated.get<FillAntialias>() && unevaluated.get<FillOutlineColor>().isUndefined()) {
draw(parameters.programs.fillOutlinePattern,
gl::Lines { 2.0f },
parameters.depthModeForSublayer(2, gl::DepthMode::ReadOnly),
*bucket.lineIndexBuffer,
bucket.lineSegments);
}
}
}
}
void RenderSymbolLayer::render(PaintParameters& parameters, RenderSource*) {
if (parameters.pass == RenderPass::Opaque) {
return;
}
for (const RenderTile& tile : renderTiles) {
assert(dynamic_cast<SymbolBucket*>(tile.tile.getBucket(*baseImpl)));
SymbolBucket& bucket = *reinterpret_cast<SymbolBucket*>(tile.tile.getBucket(*baseImpl));
const auto& layout = bucket.layout;
auto draw = [&] (auto& program,
auto&& uniformValues,
const auto& buffers,
const auto& symbolSizeBinder,
const SymbolPropertyValues& values_,
const auto& binders,
const auto& paintProperties)
{
auto& programInstance = program.get(paintProperties);
const auto allUniformValues = programInstance.computeAllUniformValues(
std::move(uniformValues),
*symbolSizeBinder,
binders,
paintProperties,
parameters.state.getZoom()
);
const auto allAttributeBindings = programInstance.computeAllAttributeBindings(
*buffers.vertexBuffer,
*buffers.dynamicVertexBuffer,
*buffers.opacityVertexBuffer,
binders,
paintProperties
);
checkRenderability(parameters, programInstance.activeBindingCount(allAttributeBindings));
programInstance.draw(
parameters.context,
gl::Triangles(),
values_.pitchAlignment == AlignmentType::Map
? parameters.depthModeForSublayer(0, gl::DepthMode::ReadOnly)
: gl::DepthMode::disabled(),
gl::StencilMode::disabled(),
parameters.colorModeForRenderPass(),
*buffers.indexBuffer,
buffers.segments,
allUniformValues,
allAttributeBindings,
getID()
);
};
assert(dynamic_cast<GeometryTile*>(&tile.tile));
GeometryTile& geometryTile = static_cast<GeometryTile&>(tile.tile);
if (bucket.hasIconData()) {
auto values = iconPropertyValues(layout);
auto paintPropertyValues = iconPaintProperties();
const bool alongLine = layout.get<SymbolPlacement>() == SymbolPlacementType::Line &&
layout.get<IconRotationAlignment>() == AlignmentType::Map;
if (alongLine) {
reprojectLineLabels(bucket.icon.dynamicVertices,
bucket.icon.placedSymbols,
tile.matrix,
values,
tile,
*bucket.iconSizeBinder,
parameters.state);
parameters.context.updateVertexBuffer(*bucket.icon.dynamicVertexBuffer, std::move(bucket.icon.dynamicVertices));
}
const bool iconScaled = layout.get<IconSize>().constantOr(1.0) != 1.0 || bucket.iconsNeedLinear;
const bool iconTransformed = values.rotationAlignment == AlignmentType::Map || parameters.state.getPitch() != 0;
parameters.context.bindTexture(*geometryTile.iconAtlasTexture, 0,
bucket.sdfIcons || parameters.state.isChanging() || iconScaled || iconTransformed
? gl::TextureFilter::Linear : gl::TextureFilter::Nearest);
const Size texsize = geometryTile.iconAtlasTexture->size;
if (bucket.sdfIcons) {
if (values.hasHalo) {
draw(parameters.programs.symbolIconSDF,
SymbolSDFIconProgram::uniformValues(false, values, texsize, parameters.pixelsToGLUnits, alongLine, tile, parameters.state, parameters.symbolFadeChange, SymbolSDFPart::Halo),
bucket.icon,
bucket.iconSizeBinder,
values,
bucket.paintPropertyBinders.at(getID()).first,
paintPropertyValues);
}
if (values.hasFill) {
draw(parameters.programs.symbolIconSDF,
SymbolSDFIconProgram::uniformValues(false, values, texsize, parameters.pixelsToGLUnits, alongLine, tile, parameters.state, parameters.symbolFadeChange, SymbolSDFPart::Fill),
bucket.icon,
bucket.iconSizeBinder,
values,
bucket.paintPropertyBinders.at(getID()).first,
paintPropertyValues);
}
} else {
draw(parameters.programs.symbolIcon,
SymbolIconProgram::uniformValues(false, values, texsize, parameters.pixelsToGLUnits, alongLine, tile, parameters.state, parameters.symbolFadeChange),
bucket.icon,
bucket.iconSizeBinder,
values,
bucket.paintPropertyBinders.at(getID()).first,
paintPropertyValues);
}
}
if (bucket.hasTextData()) {
parameters.context.bindTexture(*geometryTile.glyphAtlasTexture, 0, gl::TextureFilter::Linear);
auto values = textPropertyValues(layout);
auto paintPropertyValues = textPaintProperties();
const bool alongLine = layout.get<SymbolPlacement>() == SymbolPlacementType::Line &&
layout.get<TextRotationAlignment>() == AlignmentType::Map;
if (alongLine) {
reprojectLineLabels(bucket.text.dynamicVertices,
bucket.text.placedSymbols,
tile.matrix,
values,
tile,
*bucket.textSizeBinder,
parameters.state);
parameters.context.updateVertexBuffer(*bucket.text.dynamicVertexBuffer, std::move(bucket.text.dynamicVertices));
}
const Size texsize = geometryTile.glyphAtlasTexture->size;
if (values.hasHalo) {
draw(parameters.programs.symbolGlyph,
SymbolSDFTextProgram::uniformValues(true, values, texsize, parameters.pixelsToGLUnits, alongLine, tile, parameters.state, parameters.symbolFadeChange, SymbolSDFPart::Halo),
bucket.text,
bucket.textSizeBinder,
values,
bucket.paintPropertyBinders.at(getID()).second,
paintPropertyValues);
}
if (values.hasFill) {
draw(parameters.programs.symbolGlyph,
SymbolSDFTextProgram::uniformValues(true, values, texsize, parameters.pixelsToGLUnits, alongLine, tile, parameters.state, parameters.symbolFadeChange, SymbolSDFPart::Fill),
bucket.text,
bucket.textSizeBinder,
values,
bucket.paintPropertyBinders.at(getID()).second,
paintPropertyValues);
}
}
if (bucket.hasCollisionBoxData()) {
static const style::Properties<>::PossiblyEvaluated properties {};
static const CollisionBoxProgram::PaintPropertyBinders paintAttributeData(properties, 0);
auto pixelRatio = tile.id.pixelsToTileUnits(1, parameters.state.getZoom());
const float scale = std::pow(2, parameters.state.getZoom() - tile.tile.id.overscaledZ);
std::array<float,2> extrudeScale =
{{
parameters.pixelsToGLUnits[0] / (pixelRatio * scale),
parameters.pixelsToGLUnits[1] / (pixelRatio * scale)
}};
parameters.programs.collisionBox.draw(
parameters.context,
gl::Lines { 1.0f },
gl::DepthMode::disabled(),
gl::StencilMode::disabled(),
parameters.colorModeForRenderPass(),
CollisionBoxProgram::UniformValues {
uniforms::u_matrix::Value{ tile.matrix },
uniforms::u_extrude_scale::Value{ extrudeScale },
uniforms::u_camera_to_center_distance::Value{ parameters.state.getCameraToCenterDistance() }
},
*bucket.collisionBox.vertexBuffer,
*bucket.collisionBox.dynamicVertexBuffer,
*bucket.collisionBox.indexBuffer,
bucket.collisionBox.segments,
paintAttributeData,
properties,
parameters.state.getZoom(),
getID()
);
}
if (bucket.hasCollisionCircleData()) {
static const style::Properties<>::PossiblyEvaluated properties {};
static const CollisionBoxProgram::PaintPropertyBinders paintAttributeData(properties, 0);
auto pixelRatio = tile.id.pixelsToTileUnits(1, parameters.state.getZoom());
const float scale = std::pow(2, parameters.state.getZoom() - tile.tile.id.overscaledZ);
std::array<float,2> extrudeScale =
{{
parameters.pixelsToGLUnits[0] / (pixelRatio * scale),
parameters.pixelsToGLUnits[1] / (pixelRatio * scale)
}};
parameters.programs.collisionCircle.draw(
parameters.context,
gl::Triangles(),
gl::DepthMode::disabled(),
gl::StencilMode::disabled(),
parameters.colorModeForRenderPass(),
CollisionCircleProgram::UniformValues {
uniforms::u_matrix::Value{ tile.matrix },
uniforms::u_extrude_scale::Value{ extrudeScale },
uniforms::u_overscale_factor::Value{ float(tile.tile.id.overscaleFactor()) },
uniforms::u_camera_to_center_distance::Value{ parameters.state.getCameraToCenterDistance() }
},
*bucket.collisionCircle.vertexBuffer,
*bucket.collisionCircle.dynamicVertexBuffer,
*bucket.collisionCircle.indexBuffer,
bucket.collisionCircle.segments,
paintAttributeData,
properties,
parameters.state.getZoom(),
getID()
);
}
}
}
