135 lines
4.7 KiB
C++
135 lines
4.7 KiB
C++
#include <mbgl/renderer/painter.hpp>
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#include <mbgl/renderer/buckets/debug_bucket.hpp>
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#include <mbgl/renderer/render_tile.hpp>
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#include <mbgl/renderer/paint_parameters.hpp>
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#include <mbgl/map/view.hpp>
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#include <mbgl/tile/tile.hpp>
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#include <mbgl/programs/programs.hpp>
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#include <mbgl/programs/fill_program.hpp>
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#include <mbgl/util/string.hpp>
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#include <mbgl/gl/debugging.hpp>
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#include <mbgl/util/color.hpp>
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namespace mbgl {
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using namespace style;
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void Painter::renderTileDebug(const RenderTile& renderTile) {
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if (frame.debugOptions == MapDebugOptions::NoDebug)
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return;
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MBGL_DEBUG_GROUP(context, std::string { "debug " } + util::toString(renderTile.id));
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static const style::PaintProperties<>::Evaluated properties {};
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static const DebugProgram::PaintPropertyBinders paintAttibuteData(properties, 0);
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auto draw = [&] (Color color, const auto& vertexBuffer, const auto& indexBuffer, const auto& segments, auto drawMode) {
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programs->debug.draw(
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context,
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drawMode,
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gl::DepthMode::disabled(),
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stencilModeForClipping(renderTile.clip),
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gl::ColorMode::unblended(),
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DebugProgram::UniformValues {
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uniforms::u_matrix::Value{ renderTile.matrix },
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uniforms::u_color::Value{ color }
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},
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vertexBuffer,
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indexBuffer,
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segments,
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paintAttibuteData,
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properties,
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state.getZoom()
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);
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};
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if (frame.debugOptions & (MapDebugOptions::Timestamps | MapDebugOptions::ParseStatus)) {
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Tile& tile = renderTile.tile;
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if (!tile.debugBucket || tile.debugBucket->renderable != tile.isRenderable() ||
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tile.debugBucket->complete != tile.isComplete() ||
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!(tile.debugBucket->modified == tile.modified) ||
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!(tile.debugBucket->expires == tile.expires) ||
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tile.debugBucket->debugMode != frame.debugOptions) {
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tile.debugBucket = std::make_unique<DebugBucket>(
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tile.id, tile.isRenderable(), tile.isComplete(), tile.modified,
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tile.expires, frame.debugOptions, context);
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}
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draw(Color::white(),
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*tile.debugBucket->vertexBuffer,
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*tile.debugBucket->indexBuffer,
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tile.debugBucket->segments,
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gl::Lines { 4.0f * frame.pixelRatio });
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draw(Color::black(),
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*tile.debugBucket->vertexBuffer,
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*tile.debugBucket->indexBuffer,
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tile.debugBucket->segments,
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gl::Lines { 2.0f * frame.pixelRatio });
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}
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if (frame.debugOptions & MapDebugOptions::TileBorders) {
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draw(Color::red(),
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tileVertexBuffer,
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tileBorderIndexBuffer,
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tileBorderSegments,
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gl::LineStrip { 4.0f * frame.pixelRatio });
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}
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}
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#ifndef NDEBUG
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void Painter::renderClipMasks(PaintParameters&) {
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context.setStencilMode(gl::StencilMode::disabled());
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context.setDepthMode(gl::DepthMode::disabled());
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context.setColorMode(gl::ColorMode::unblended());
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context.program = 0;
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#if not MBGL_USE_GLES2
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// Reset the value in case someone else changed it, or it's dirty.
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context.pixelTransferStencil = gl::value::PixelTransferStencil::Default;
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// Read the stencil buffer
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const auto viewport = context.viewport.getCurrentValue();
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auto image =
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context.readFramebuffer<AlphaImage, gl::TextureFormat::Stencil>(viewport.size, false);
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// Scale the Stencil buffer to cover the entire color space.
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auto it = image.data.get();
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auto end = it + viewport.size.width * viewport.size.height;
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const auto factor = 255.0f / *std::max_element(it, end);
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for (; it != end; ++it) {
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*it *= factor;
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}
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context.pixelZoom = { 1, 1 };
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context.rasterPos = { -1, -1, 0, 1 };
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context.drawPixels(image);
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#endif // MBGL_USE_GLES2
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}
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void Painter::renderDepthBuffer(PaintParameters&) {
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context.setStencilMode(gl::StencilMode::disabled());
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context.setDepthMode(gl::DepthMode::disabled());
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context.setColorMode(gl::ColorMode::unblended());
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context.program = 0;
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#if not MBGL_USE_GLES2
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// Scales the values in the depth buffer so that they cover the entire grayscale range. This
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// makes it easier to spot tiny differences.
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const float base = 1.0f / (1.0f - depthRangeSize);
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context.pixelTransferDepth = { base, 1.0f - base };
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// Read the stencil buffer
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auto viewport = context.viewport.getCurrentValue();
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auto image =
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context.readFramebuffer<AlphaImage, gl::TextureFormat::Depth>(viewport.size, false);
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context.pixelZoom = { 1, 1 };
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context.rasterPos = { -1, -1, 0, 1 };
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context.drawPixels(image);
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#endif // MBGL_USE_GLES2
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}
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#endif // NDEBUG
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} // namespace mbgl
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