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#include <mbgl/renderer/render_tile.hpp>
#include <mbgl/renderer/paint_parameters.hpp>
#include <mbgl/renderer/buckets/debug_bucket.hpp>
#include <mbgl/renderer/render_source.hpp>
#include <mbgl/renderer/render_static_data.hpp>
#include <mbgl/renderer/tile_render_data.hpp>
#include <mbgl/programs/programs.hpp>
#include <mbgl/map/transform_state.hpp>
#include <mbgl/gfx/cull_face_mode.hpp>
#include <mbgl/tile/tile.hpp>
#include <mbgl/tile/geometry_tile.hpp>
#include <mbgl/util/math.hpp>
namespace mbgl {
using namespace style;
RenderTile::RenderTile(UnwrappedTileID id_, Tile& tile_) : id(id_), tile(tile_) {}
RenderTile::~RenderTile() = default;
mat4 RenderTile::translateVtxMatrix(const mat4& tileMatrix,
const std::array<float, 2>& translation,
TranslateAnchorType anchor,
const TransformState& state,
const bool inViewportPixelUnits) const {
if (translation[0] == 0 && translation[1] == 0) {
return tileMatrix;
}
mat4 vtxMatrix;
const float angle = inViewportPixelUnits ?
(anchor == TranslateAnchorType::Map ? state.getBearing() : 0) :
(anchor == TranslateAnchorType::Viewport ? -state.getBearing() : 0);
Point<float> translate = util::rotate(Point<float>{ translation[0], translation[1] }, angle);
if (inViewportPixelUnits) {
matrix::translate(vtxMatrix, tileMatrix, translate.x, translate.y, 0);
} else {
matrix::translate(vtxMatrix, tileMatrix,
id.pixelsToTileUnits(translate.x, state.getZoom()),
id.pixelsToTileUnits(translate.y, state.getZoom()),
0);
}
return vtxMatrix;
}
mat4 RenderTile::translatedMatrix(const std::array<float, 2>& translation,
TranslateAnchorType anchor,
const TransformState& state) const {
return translateVtxMatrix(matrix, translation, anchor, state, false);
}
mat4 RenderTile::translatedClipMatrix(const std::array<float, 2>& translation,
TranslateAnchorType anchor,
const TransformState& state) const {
return translateVtxMatrix(nearClippedMatrix, translation, anchor, state, false);
}
const OverscaledTileID& RenderTile::getOverscaledTileID() const { return tile.id; }
bool RenderTile::holdForFade() const { return tile.holdForFade(); }
Bucket* RenderTile::getBucket(const style::Layer::Impl& impl) const {
assert(renderData);
return renderData->getBucket(impl);
}
const LayerRenderData* RenderTile::getLayerRenderData(const style::Layer::Impl& impl) const {
assert(renderData);
return renderData->getLayerRenderData(impl);
}
optional<ImagePosition> RenderTile::getPattern(const std::string& pattern) const {
assert(renderData);
return renderData->getPattern(pattern);
}
const gfx::Texture& RenderTile::getGlyphAtlasTexture() const {
assert(renderData);
return renderData->getGlyphAtlasTexture();
}
const gfx::Texture& RenderTile::getIconAtlasTexture() const {
assert(renderData);
return renderData->getIconAtlasTexture();
}
void RenderTile::upload(gfx::UploadPass& uploadPass) const {
assert(renderData);
renderData->upload(uploadPass);
if (debugBucket) {
debugBucket->upload(uploadPass);
}
}
void RenderTile::prepare(const SourcePrepareParameters& parameters) {
renderData = tile.createRenderData();
assert(renderData);
renderData->prepare(parameters);
needsRendering = tile.usedByRenderedLayers;
if (parameters.debugOptions != MapDebugOptions::NoDebug &&
(!debugBucket || debugBucket->renderable != tile.isRenderable() ||
debugBucket->complete != tile.isComplete() ||
!(debugBucket->modified == tile.modified) ||
!(debugBucket->expires == tile.expires) ||
debugBucket->debugMode != parameters.debugOptions)) {
debugBucket = std::make_unique<DebugBucket>(
tile.id, tile.isRenderable(), tile.isComplete(), tile.modified, tile.expires,
parameters.debugOptions);
} else if (parameters.debugOptions == MapDebugOptions::NoDebug) {
debugBucket.reset();
}
// Calculate two matrices for this tile: matrix is the standard tile matrix; nearClippedMatrix
// has near plane moved further, to enhance depth buffer precision
const auto& transform = parameters.transform;
transform.state.matrixFor(matrix, id);
transform.state.matrixFor(nearClippedMatrix, id);
matrix::multiply(matrix, transform.projMatrix, matrix);
matrix::multiply(nearClippedMatrix, transform.nearClippedProjMatrix, nearClippedMatrix);
}
void RenderTile::finishRender(PaintParameters& parameters) const {
if (!needsRendering || parameters.debugOptions == MapDebugOptions::NoDebug)
return;
static const style::Properties<>::PossiblyEvaluated properties {};
static const DebugProgram::Binders paintAttributeData(properties, 0);
auto& program = parameters.programs.debug;
if (parameters.debugOptions & (MapDebugOptions::Timestamps | MapDebugOptions::ParseStatus)) {
assert(debugBucket);
const auto allAttributeBindings = program.computeAllAttributeBindings(
*debugBucket->vertexBuffer,
paintAttributeData,
properties
);
program.draw(
parameters.context,
*parameters.renderPass,
gfx::Lines{4.0f * parameters.pixelRatio},
gfx::DepthMode::disabled(),
gfx::StencilMode::disabled(),
gfx::ColorMode::unblended(),
gfx::CullFaceMode::disabled(),
*debugBucket->indexBuffer,
debugBucket->segments,
program.computeAllUniformValues(DebugProgram::LayoutUniformValues{uniforms::matrix::Value(matrix),
uniforms::color::Value(Color::white())},
paintAttributeData,
properties,
parameters.state.getZoom()),
allAttributeBindings,
DebugProgram::TextureBindings{},
"text-outline");
program.draw(
parameters.context,
*parameters.renderPass,
gfx::Lines{2.0f * parameters.pixelRatio},
gfx::DepthMode::disabled(),
gfx::StencilMode::disabled(),
gfx::ColorMode::unblended(),
gfx::CullFaceMode::disabled(),
*debugBucket->indexBuffer,
debugBucket->segments,
program.computeAllUniformValues(DebugProgram::LayoutUniformValues{uniforms::matrix::Value(matrix),
uniforms::color::Value(Color::black())},
paintAttributeData,
properties,
parameters.state.getZoom()),
allAttributeBindings,
DebugProgram::TextureBindings{},
"text");
}
if (parameters.debugOptions & MapDebugOptions::TileBorders) {
assert(debugBucket);
if (debugBucket->tileBorderSegments.empty()) {
debugBucket->tileBorderSegments = parameters.staticData.tileBorderSegments();
}
parameters.programs.debug.draw(
parameters.context,
*parameters.renderPass,
gfx::LineStrip{4.0f * parameters.pixelRatio},
gfx::DepthMode::disabled(),
gfx::StencilMode::disabled(),
gfx::ColorMode::unblended(),
gfx::CullFaceMode::disabled(),
*parameters.staticData.tileBorderIndexBuffer,
debugBucket->tileBorderSegments,
program.computeAllUniformValues(DebugProgram::LayoutUniformValues{uniforms::matrix::Value(matrix),
uniforms::color::Value(Color::red())},
paintAttributeData,
properties,
parameters.state.getZoom()),
program.computeAllAttributeBindings(
*parameters.staticData.tileVertexBuffer, paintAttributeData, properties),
DebugProgram::TextureBindings{},
"border");
}
}
void RenderTile::setFeatureState(const LayerFeatureStates& states) {
tile.setFeatureState(states);
}
} // namespace mbgl
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