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#include "drape_frontend/traffic_renderer.hpp"
#include "drape_frontend/color_constants.hpp"
#include "drape_frontend/shader_def.hpp"
#include "drape_frontend/visual_params.hpp"
#include "drape/glsl_func.hpp"
#include "drape/support_manager.hpp"
#include "drape/vertex_array_buffer.hpp"
#include "indexer/map_style_reader.hpp"
#include "indexer/scales.hpp"
#include "base/logging.hpp"
#include "std/algorithm.hpp"
namespace df
{
namespace
{
df::ColorConstant const kTrafficArrowLightColor = "TrafficArrowLight";
df::ColorConstant const kTrafficArrowDarkColor = "TrafficArrowDark";
df::ColorConstant const kTrafficOutlineColor = "TrafficOutline";
int constexpr kMinVisibleArrowZoomLevel = 16;
int constexpr kRoadClass2MinVisibleArrowZoomLevel = 17;
int constexpr kOutlineMinZoomLevel = 14;
float const kTrafficArrowAspect = 128.0f / 8.0f;
float const kLeftWidthInPixel[] =
{
// 1 2 3 4 5 6 7 8 9 10
0.5f, 0.5f, 0.5f, 0.5f, 0.5f, 0.5f, 0.5f, 0.5f, 0.5f, 0.5f,
//11 12 13 14 15 16 17 18 19 20
0.5f, 0.5f, 0.5f, 0.5f, 0.7f, 2.5f, 3.0f, 4.0f, 4.0f, 4.0f
};
float const kRightWidthInPixel[] =
{
// 1 2 3 4 5 6 7 8 9 10
2.0f, 2.0f, 2.0f, 2.0f, 2.0f, 2.0f, 2.0f, 2.0f, 3.0f, 3.0f,
//11 12 13 14 15 16 17 18 19 20
3.0f, 3.0f, 4.0f, 4.0f, 3.8f, 2.5f, 3.0f, 4.0f, 4.0f, 4.0f
};
float const kRoadClass1WidthScalar[] =
{
// 1 2 3 4 5 6 7 8 9 10
0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.3,
//11 12 13 14 15 16 17 18 19 20
0.3, 0.3f, 0.4f, 0.5f, 0.6f, 0.6f, 1.0f, 1.0f, 1.0f, 1.0f
};
float const kRoadClass2WidthScalar[] =
{
// 1 2 3 4 5 6 7 8 9 10
0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.3f,
//11 12 13 14 15 16 17 18 19 20
0.3f, 0.3f, 0.3f, 0.3f, 0.5f, 0.5f, 0.5f, 0.8f, 0.9f, 1.0f
};
float const kTwoWayOffsetInPixel[] =
{
// 1 2 3 4 5 6 7 8 9 10
0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f, 0.0f,
//11 12 13 14 15 16 17 18 19 20
0.0f, 0.5f, 0.5f, 0.5f, 1.0f, 2.5f, 2.5f, 2.5f, 2.5f, 2.5f
};
vector<int> const kLineDrawerRoadClass1 = {12, 13, 14};
vector<int> const kLineDrawerRoadClass2 = {15, 16};
float CalculateHalfWidth(ScreenBase const & screen, RoadClass const & roadClass, bool left)
{
double const zoomLevel = GetZoomLevel(screen.GetScale());
double zoom = trunc(zoomLevel);
int const index = static_cast<int>(zoom - 1.0);
float const lerpCoef = static_cast<float>(zoomLevel - zoom);
float const * widthScalar = nullptr;
if (roadClass == RoadClass::Class1)
widthScalar = kRoadClass1WidthScalar;
else if (roadClass == RoadClass::Class2)
widthScalar = kRoadClass2WidthScalar;
float const * halfWidth = left ? kLeftWidthInPixel : kRightWidthInPixel;
float radius = 0.0f;
if (index < scales::UPPER_STYLE_SCALE)
{
radius = halfWidth[index] + lerpCoef * (halfWidth[index + 1] - halfWidth[index]);
if (widthScalar != nullptr)
radius *= (widthScalar[index] + lerpCoef * (widthScalar[index + 1] - widthScalar[index]));
}
else
{
radius = halfWidth[scales::UPPER_STYLE_SCALE];
if (widthScalar != nullptr)
radius *= widthScalar[scales::UPPER_STYLE_SCALE];
}
return radius * static_cast<float>(VisualParams::Instance().GetVisualScale());
}
} // namespace
void TrafficRenderer::AddRenderData(ref_ptr<dp::GpuProgramManager> mng, TrafficRenderData && renderData)
{
// Remove obsolete render data.
TileKey const tileKey(renderData.m_tileKey);
m_renderData.erase(remove_if(m_renderData.begin(), m_renderData.end(), [&tileKey](TrafficRenderData const & rd)
{
return tileKey == rd.m_tileKey && rd.m_tileKey.m_generation < tileKey.m_generation;
}), m_renderData.end());
// Add new render data.
m_renderData.emplace_back(move(renderData));
TrafficRenderData & rd = m_renderData.back();
ref_ptr<dp::GpuProgram> program = mng->GetProgram(rd.m_state.GetProgramIndex());
program->Bind();
rd.m_bucket->GetBuffer()->Build(program);
}
void TrafficRenderer::OnUpdateViewport(CoverageResult const & coverage, int currentZoomLevel,
buffer_vector<TileKey, 8> const & tilesToDelete)
{
m_renderData.erase(remove_if(m_renderData.begin(), m_renderData.end(),
[&coverage, ¤tZoomLevel, &tilesToDelete](TrafficRenderData const & rd)
{
return rd.m_tileKey.m_zoomLevel == currentZoomLevel &&
(rd.m_tileKey.m_x < coverage.m_minTileX || rd.m_tileKey.m_x >= coverage.m_maxTileX ||
rd.m_tileKey.m_y < coverage.m_minTileY || rd.m_tileKey.m_y >= coverage.m_maxTileY ||
find(tilesToDelete.begin(), tilesToDelete.end(), rd.m_tileKey) != tilesToDelete.end());
}), m_renderData.end());
}
void TrafficRenderer::OnGeometryReady(int currentZoomLevel)
{
m_renderData.erase(remove_if(m_renderData.begin(), m_renderData.end(),
[¤tZoomLevel](TrafficRenderData const & rd)
{
return rd.m_tileKey.m_zoomLevel != currentZoomLevel;
}), m_renderData.end());
}
void TrafficRenderer::RenderTraffic(ScreenBase const & screen, int zoomLevel, float opacity,
ref_ptr<dp::GpuProgramManager> mng,
dp::UniformValuesStorage const & commonUniforms)
{
if (m_renderData.empty() || zoomLevel < kRoadClass0ZoomLevel)
return;
dp::Color const lightArrowColor = df::GetColorConstant(df::kTrafficArrowLightColor);
dp::Color const darkArrowColor = df::GetColorConstant(df::kTrafficArrowDarkColor);
dp::Color const outlineColor = df::GetColorConstant(df::kTrafficOutlineColor);
for (TrafficRenderData & renderData : m_renderData)
{
if (renderData.m_state.GetDrawAsLine())
{
ref_ptr<dp::GpuProgram> program = mng->GetProgram(renderData.m_state.GetProgramIndex());
program->Bind();
dp::ApplyState(renderData.m_state, program);
dp::UniformValuesStorage uniforms = commonUniforms;
math::Matrix<float, 4, 4> const mv = renderData.m_tileKey.GetTileBasedModelView(screen);
uniforms.SetMatrix4x4Value("modelView", mv.m_data);
uniforms.SetFloatValue("u_opacity", opacity);
dp::ApplyUniforms(uniforms, program);
renderData.m_bucket->Render(true /* draw as line */);
}
else
{
// Filter by road class.
int minVisibleArrowZoomLevel = kMinVisibleArrowZoomLevel;
float outline = 0.0f;
int visibleZoomLevel = kRoadClass0ZoomLevel;
if (renderData.m_roadClass == RoadClass::Class0)
{
outline = (zoomLevel <= kOutlineMinZoomLevel ? 1.0f : 0.0f);
}
else if (renderData.m_roadClass == RoadClass::Class1)
{
outline = (zoomLevel <= kOutlineMinZoomLevel ? 1.0f : 0.0f);
visibleZoomLevel = kRoadClass1ZoomLevel;
}
else if (renderData.m_roadClass == RoadClass::Class2)
{
visibleZoomLevel = kRoadClass2ZoomLevel;
minVisibleArrowZoomLevel = kRoadClass2MinVisibleArrowZoomLevel;
}
if (zoomLevel < visibleZoomLevel)
continue;
float const leftPixelHalfWidth =
CalculateHalfWidth(screen, renderData.m_roadClass, true /* left */);
float const invLeftPixelLength = 1.0f / (2.0f * leftPixelHalfWidth * kTrafficArrowAspect);
float const rightPixelHalfWidth =
CalculateHalfWidth(screen, renderData.m_roadClass, false /* left */);
float const kEps = 1e-5;
if (fabs(leftPixelHalfWidth) < kEps && fabs(rightPixelHalfWidth) < kEps)
continue;
ref_ptr<dp::GpuProgram> program = mng->GetProgram(renderData.m_state.GetProgramIndex());
program->Bind();
dp::ApplyState(renderData.m_state, program);
dp::UniformValuesStorage uniforms = commonUniforms;
math::Matrix<float, 4, 4> const mv = renderData.m_tileKey.GetTileBasedModelView(screen);
uniforms.SetMatrix4x4Value("modelView", mv.m_data);
uniforms.SetFloatValue("u_opacity", opacity);
uniforms.SetFloatValue("u_outline", outline);
uniforms.SetFloatValue("u_lightArrowColor", lightArrowColor.GetRedF(),
lightArrowColor.GetGreenF(), lightArrowColor.GetBlueF());
uniforms.SetFloatValue("u_darkArrowColor", darkArrowColor.GetRedF(),
darkArrowColor.GetGreenF(), darkArrowColor.GetBlueF());
uniforms.SetFloatValue("u_outlineColor", outlineColor.GetRedF(), outlineColor.GetGreenF(),
outlineColor.GetBlueF());
uniforms.SetFloatValue("u_trafficParams", leftPixelHalfWidth, rightPixelHalfWidth,
invLeftPixelLength,
zoomLevel >= minVisibleArrowZoomLevel ? 1.0f : 0.0f);
dp::ApplyUniforms(uniforms, program);
renderData.m_bucket->Render(false /* draw as line */);
}
}
}
void TrafficRenderer::ClearGLDependentResources()
{
m_renderData.clear();
}
void TrafficRenderer::Clear(MwmSet::MwmId const & mwmId)
{
auto removePredicate = [&mwmId](TrafficRenderData const & data) { return data.m_mwmId == mwmId; };
m_renderData.erase(remove_if(m_renderData.begin(), m_renderData.end(), removePredicate),
m_renderData.end());
}
// static
float TrafficRenderer::GetTwoWayOffset(RoadClass const & roadClass, int zoomLevel)
{
// There is no offset for class-0 roads, the offset for them is created by
// kLeftWidthInPixel and kRightWidthInPixel.
int const kRoadClass0MinZoomLevel = 14;
if (roadClass == RoadClass::Class0 && zoomLevel <= kRoadClass0MinZoomLevel)
return 0.0f;
ASSERT_GREATER(zoomLevel, 1, ());
ASSERT_LESS_OR_EQUAL(zoomLevel, scales::GetUpperStyleScale(), ());
int const index = zoomLevel - 1;
float const halfWidth = 0.5f * df::TrafficRenderer::GetPixelWidth(roadClass, zoomLevel);
return kTwoWayOffsetInPixel[index] *
static_cast<float>(VisualParams::Instance().GetVisualScale()) +
halfWidth;
}
// static
float TrafficRenderer::GetPixelWidth(RoadClass const & roadClass, int zoomLevel)
{
int width = 0;
if (CanBeRendereredAsLine(roadClass, zoomLevel, width))
return static_cast<float>(width);
return GetPixelWidthInternal(roadClass, zoomLevel);
}
// static
float TrafficRenderer::GetPixelWidthInternal(RoadClass const & roadClass, int zoomLevel)
{
ASSERT_GREATER(zoomLevel, 1, ());
ASSERT_LESS_OR_EQUAL(zoomLevel, scales::GetUpperStyleScale(), ());
float const * widthScalar = nullptr;
if (roadClass == RoadClass::Class1)
widthScalar = kRoadClass1WidthScalar;
else if (roadClass == RoadClass::Class2)
widthScalar = kRoadClass2WidthScalar;
int const index = zoomLevel - 1;
float const baseWidth = (kLeftWidthInPixel[index] + kRightWidthInPixel[index]) *
static_cast<float>(df::VisualParams::Instance().GetVisualScale());
return (widthScalar != nullptr) ? (baseWidth * widthScalar[index]) : baseWidth;
}
// static
bool TrafficRenderer::CanBeRendereredAsLine(RoadClass const & roadClass, int zoomLevel, int & width)
{
if (roadClass == RoadClass::Class0)
return false;
vector<int> const * lineDrawer = nullptr;
if (roadClass == RoadClass::Class1)
lineDrawer = &kLineDrawerRoadClass1;
else if (roadClass == RoadClass::Class2)
lineDrawer = &kLineDrawerRoadClass2;
ASSERT(lineDrawer != nullptr, ());
auto it = find(lineDrawer->begin(), lineDrawer->end(), zoomLevel);
if (it == lineDrawer->end())
return false;
width = max(1, my::rounds(TrafficRenderer::GetPixelWidthInternal(roadClass, zoomLevel)));
return width <= dp::SupportManager::Instance().GetMaxLineWidth();
}
} // namespace df
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