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#include "drape_frontend/my_position.hpp"
#include "drape_frontend/color_constants.hpp"
#include "drape_frontend/map_shape.hpp"
#include "drape_frontend/shape_view_params.hpp"
#include "drape_frontend/tile_utils.hpp"
#include "drape/constants.hpp"
#include "drape/glsl_func.hpp"
#include "drape/glsl_types.hpp"
#include "drape/overlay_handle.hpp"
#include "drape/render_bucket.hpp"
#include "drape/shader_def.hpp"
#include "indexer/map_style_reader.hpp"
namespace df
{
namespace
{
struct Vertex
{
Vertex() = default;
Vertex(glsl::vec2 const & normal, glsl::vec2 const & texCoord)
: m_normal(normal)
, m_texCoord(texCoord)
{
}
glsl::vec2 m_normal;
glsl::vec2 m_texCoord;
};
dp::BindingInfo GetBindingInfo()
{
dp::BindingInfo info(2);
dp::BindingDecl & normal = info.GetBindingDecl(0);
normal.m_attributeName = "a_normal";
normal.m_componentCount = 2;
normal.m_componentType = gl_const::GLFloatType;
normal.m_offset = 0;
normal.m_stride = sizeof(Vertex);
dp::BindingDecl & texCoord = info.GetBindingDecl(1);
texCoord.m_attributeName = "a_colorTexCoords";
texCoord.m_componentCount = 2;
texCoord.m_componentType = gl_const::GLFloatType;
texCoord.m_offset = sizeof(glsl::vec2);
texCoord.m_stride = sizeof(Vertex);
return info;
}
} // namespace
MyPosition::MyPosition(ref_ptr<dp::TextureManager> mng)
: m_position(m2::PointF::Zero())
, m_azimuth(0.0f)
, m_accuracy(0.0f)
, m_showAzimuth(false)
, m_isRoutingMode(false)
, m_obsoletePosition(false)
{
m_parts.resize(4);
CacheAccuracySector(mng);
CachePointPosition(mng);
}
void MyPosition::SetPosition(m2::PointF const & pt)
{
m_position = pt;
}
void MyPosition::SetAzimuth(float azimut)
{
m_azimuth = azimut;
}
void MyPosition::SetIsValidAzimuth(bool isValid)
{
m_showAzimuth = isValid;
}
void MyPosition::SetAccuracy(float accuracy)
{
m_accuracy = accuracy;
}
void MyPosition::SetRoutingMode(bool routingMode)
{
m_isRoutingMode = routingMode;
}
void MyPosition::SetPositionObsolete(bool obsolete)
{
m_obsoletePosition = obsolete;
m_arrow3d.SetPositionObsolete(obsolete);
}
void MyPosition::RenderAccuracy(ScreenBase const & screen, int zoomLevel,
ref_ptr<dp::GpuProgramManager> mng,
dp::UniformValuesStorage const & commonUniforms)
{
dp::UniformValuesStorage uniforms = commonUniforms;
m2::PointD accuracyPoint(m_position.x + m_accuracy, m_position.y);
float pixelAccuracy = (screen.GtoP(accuracyPoint) - screen.GtoP(m_position)).Length();
TileKey const key = GetTileKeyByPoint(m_position, ClipTileZoomByMaxDataZoom(zoomLevel));
math::Matrix<float, 4, 4> mv = key.GetTileBasedModelView(screen);
uniforms.SetMatrix4x4Value("modelView", mv.m_data);
m2::PointD const pos = MapShape::ConvertToLocal(m_position, key.GetGlobalRect().Center(), kShapeCoordScalar);
uniforms.SetFloatValue("u_position", pos.x, pos.y, 0.0f);
uniforms.SetFloatValue("u_accuracy", pixelAccuracy);
uniforms.SetFloatValue("u_opacity", 1.0f);
RenderPart(mng, uniforms, MY_POSITION_ACCURACY);
}
void MyPosition::RenderMyPosition(ScreenBase const & screen, int zoomLevel,
ref_ptr<dp::GpuProgramManager> mng,
dp::UniformValuesStorage const & commonUniforms)
{
if (m_showAzimuth)
{
m_arrow3d.SetPosition(m_position);
m_arrow3d.SetAzimuth(m_azimuth);
m_arrow3d.Render(screen, zoomLevel, mng);
}
else
{
dp::UniformValuesStorage uniforms = commonUniforms;
TileKey const key = GetTileKeyByPoint(m_position, ClipTileZoomByMaxDataZoom(zoomLevel));
math::Matrix<float, 4, 4> mv = key.GetTileBasedModelView(screen);
uniforms.SetMatrix4x4Value("modelView", mv.m_data);
m2::PointD const pos = MapShape::ConvertToLocal(m_position, key.GetGlobalRect().Center(), kShapeCoordScalar);
uniforms.SetFloatValue("u_position", pos.x, pos.y, dp::depth::MY_POSITION_MARK);
uniforms.SetFloatValue("u_azimut", -(m_azimuth + screen.GetAngle()));
uniforms.SetFloatValue("u_opacity", 1.0);
RenderPart(mng, uniforms, MY_POSITION_POINT);
}
}
void MyPosition::CacheAccuracySector(ref_ptr<dp::TextureManager> mng)
{
int const TriangleCount = 40;
int const VertexCount = 3 * TriangleCount;
float const etalonSector = math::twicePi / static_cast<double>(TriangleCount);
dp::TextureManager::ColorRegion color;
mng->GetColorRegion(df::GetColorConstant(GetStyleReader().GetCurrentStyle(), df::MyPositionAccuracy), color);
glsl::vec2 colorCoord = glsl::ToVec2(color.GetTexRect().Center());
buffer_vector<Vertex, TriangleCount> buffer;
glsl::vec2 startNormal(0.0f, 1.0f);
for (size_t i = 0; i < TriangleCount + 1; ++i)
{
glsl::vec2 normal = glsl::rotate(startNormal, i * etalonSector);
glsl::vec2 nextNormal = glsl::rotate(startNormal, (i + 1) * etalonSector);
buffer.emplace_back(startNormal, colorCoord);
buffer.emplace_back(normal, colorCoord);
buffer.emplace_back(nextNormal, colorCoord);
}
dp::GLState state(gpu::ACCURACY_PROGRAM, dp::GLState::OverlayLayer);
state.SetColorTexture(color.GetTexture());
{
dp::Batcher batcher(TriangleCount * dp::Batcher::IndexPerTriangle, VertexCount);
dp::SessionGuard guard(batcher, [this](dp::GLState const & state, drape_ptr<dp::RenderBucket> && b)
{
drape_ptr<dp::RenderBucket> bucket = move(b);
ASSERT(bucket->GetOverlayHandlesCount() == 0, ());
m_nodes.emplace_back(state, bucket->MoveBuffer());
m_parts[MY_POSITION_ACCURACY].second = m_nodes.size() - 1;
});
dp::AttributeProvider provider(1 /*stream count*/, VertexCount);
provider.InitStream(0 /*stream index*/, GetBindingInfo(), make_ref(buffer.data()));
m_parts[MY_POSITION_ACCURACY].first = batcher.InsertTriangleList(state, make_ref(&provider), nullptr);
ASSERT(m_parts[MY_POSITION_ACCURACY].first.IsValid(), ());
}
}
void MyPosition::CacheSymbol(dp::TextureManager::SymbolRegion const & symbol,
dp::GLState const & state, dp::Batcher & batcher,
EMyPositionPart part)
{
m2::RectF const & texRect = symbol.GetTexRect();
m2::PointF const halfSize = m2::PointF(symbol.GetPixelSize()) * 0.5f;
Vertex data[4] =
{
{ glsl::vec2(-halfSize.x, halfSize.y), glsl::ToVec2(texRect.LeftTop()) },
{ glsl::vec2(-halfSize.x, -halfSize.y), glsl::ToVec2(texRect.LeftBottom()) },
{ glsl::vec2( halfSize.x, halfSize.y), glsl::ToVec2(texRect.RightTop()) },
{ glsl::vec2( halfSize.x, -halfSize.y), glsl::ToVec2(texRect.RightBottom())}
};
dp::AttributeProvider provider(1 /* streamCount */, dp::Batcher::VertexPerQuad);
provider.InitStream(0 /* streamIndex */, GetBindingInfo(), make_ref(data));
m_parts[part].first = batcher.InsertTriangleStrip(state, make_ref(&provider), nullptr);
ASSERT(m_parts[part].first.IsValid(), ());
}
void MyPosition::CachePointPosition(ref_ptr<dp::TextureManager> mng)
{
int const kSymbolsCount = 1;
dp::TextureManager::SymbolRegion pointSymbol;
mng->GetSymbolRegion("current-position", pointSymbol);
m_arrow3d.SetTexture(mng);
dp::GLState state(gpu::MY_POSITION_PROGRAM, dp::GLState::OverlayLayer);
state.SetColorTexture(pointSymbol.GetTexture());
dp::TextureManager::SymbolRegion * symbols[kSymbolsCount] = { &pointSymbol };
EMyPositionPart partIndices[kSymbolsCount] = { MY_POSITION_POINT };
{
dp::Batcher batcher(kSymbolsCount * dp::Batcher::IndexPerQuad, kSymbolsCount * dp::Batcher::VertexPerQuad);
dp::SessionGuard guard(batcher, [this](dp::GLState const & state, drape_ptr<dp::RenderBucket> && b)
{
drape_ptr<dp::RenderBucket> bucket = move(b);
ASSERT(bucket->GetOverlayHandlesCount() == 0, ());
m_nodes.emplace_back(state, bucket->MoveBuffer());
});
int const partIndex = m_nodes.size();
for (int i = 0; i < kSymbolsCount; i++)
{
m_parts[partIndices[i]].second = partIndex;
CacheSymbol(*symbols[i], state, batcher, partIndices[i]);
}
}
}
void MyPosition::RenderPart(ref_ptr<dp::GpuProgramManager> mng,
dp::UniformValuesStorage const & uniforms,
MyPosition::EMyPositionPart part)
{
TPart const & p = m_parts[part];
m_nodes[p.second].Render(mng, uniforms, p.first);
}
} // namespace df
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