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#include "drape_frontend/user_mark_shapes.hpp"
#include "drape_frontend/line_shape.hpp"
#include "drape_frontend/map_shape.hpp"
#include "drape_frontend/shape_view_params.hpp"
#include "drape_frontend/tile_utils.hpp"
#include "drape/utils/vertex_decl.hpp"
#include "drape/shader_def.hpp"
#include "drape/attribute_provider.hpp"
#include "geometry/spline.hpp"
namespace df
{
namespace
{
template <typename TCreateVector>
void AlignFormingNormals(TCreateVector const & fn, dp::Anchor anchor,
dp::Anchor first, dp::Anchor second,
glsl::vec2 & firstNormal, glsl::vec2 & secondNormal)
{
firstNormal = fn();
secondNormal = -firstNormal;
if ((anchor & second) != 0)
{
firstNormal *= 2;
secondNormal = glsl::vec2(0.0, 0.0);
}
else if ((anchor & first) != 0)
{
firstNormal = glsl::vec2(0.0, 0.0);
secondNormal *= 2;
}
}
void AlignHorizontal(float halfWidth, dp::Anchor anchor,
glsl::vec2 & left, glsl::vec2 & right)
{
AlignFormingNormals([&halfWidth]{ return glsl::vec2(-halfWidth, 0.0f); }, anchor, dp::Left, dp::Right, left, right);
}
void AlignVertical(float halfHeight, dp::Anchor anchor,
glsl::vec2 & up, glsl::vec2 & down)
{
AlignFormingNormals([&halfHeight]{ return glsl::vec2(0.0f, -halfHeight); }, anchor, dp::Top, dp::Bottom, up, down);
}
struct UserPointVertex : gpu::BaseVertex
{
UserPointVertex() = default;
UserPointVertex(TPosition const & pos, TNormal const & normal, TTexCoord const & texCoord, bool isAnim)
: m_position(pos)
, m_normal(normal)
, m_texCoord(texCoord)
, m_isAnim(isAnim ? 1.0 : -1.0)
{}
static dp::BindingInfo GetBinding()
{
dp::BindingInfo info(4);
uint8_t offset = 0;
offset += dp::FillDecl<TPosition, UserPointVertex>(0, "a_position", info, offset);
offset += dp::FillDecl<TNormal, UserPointVertex>(1, "a_normal", info, offset);
offset += dp::FillDecl<TTexCoord, UserPointVertex>(2, "a_colorTexCoords", info, offset);
offset += dp::FillDecl<bool, UserPointVertex>(3, "a_animate", info, offset);
return info;
}
TPosition m_position;
TNormal m_normal;
TTexCoord m_texCoord;
float m_isAnim;
};
using UPV = UserPointVertex;
void CacheUserPoints(UserMarksProvider const * provider, ref_ptr<dp::TextureManager> textures,
TUserMarkShapes & outShapes)
{
size_t markCount = provider->GetUserPointCount();
if (markCount == 0)
return;
int const kZoomLevel = 10;
map<TileKey, vector<UserPointMark const *>> marks;
for (size_t i = 0; i < markCount; ++i)
{
UserPointMark const * userMark = provider->GetUserPointMark(i);
TileKey const tileKey = GetTileKeyByPoint(userMark->GetPivot(), kZoomLevel);
marks[tileKey].push_back(userMark);
}
for (auto it = marks.begin(); it != marks.end(); ++it)
{
TileKey const & key = it->first;
m2::PointD const tileCenter = key.GetGlobalRect().Center();
sort(it->second.begin(), it->second.end(), [](UserPointMark const * v1, UserPointMark const * v2)
{
return v1->GetPivot().y < v2->GetPivot().y;
});
dp::TextureManager::SymbolRegion region;
uint32_t const vertexCount = static_cast<uint32_t>(it->second.size()) * dp::Batcher::VertexPerQuad;
uint32_t const indicesCount = static_cast<uint32_t>(it->second.size()) * dp::Batcher::IndexPerQuad;
buffer_vector<UPV, 128> buffer;
buffer.reserve(vertexCount);
for (size_t i = 0; i < it->second.size(); ++i)
{
UserPointMark const * pointMark = it->second[i];
textures->GetSymbolRegion(pointMark->GetSymbolName(), region);
m2::RectF const & texRect = region.GetTexRect();
m2::PointF const pxSize = region.GetPixelSize();
dp::Anchor const anchor = pointMark->GetAnchor();
m2::PointD const pt = MapShape::ConvertToLocal(pointMark->GetPivot(), tileCenter, kShapeCoordScalar);
glsl::vec3 const pos = glsl::vec3(glsl::ToVec2(pt), pointMark->GetDepth());
bool const runAnim = pointMark->RunCreationAnim();
glsl::vec2 left, right, up, down;
AlignHorizontal(pxSize.x * 0.5f, anchor, left, right);
AlignVertical(pxSize.y * 0.5f, anchor, up, down);
m2::PointD const pixelOffset = pointMark->GetPixelOffset();
glsl::vec2 const offset(pixelOffset.x, pixelOffset.y);
buffer.emplace_back(pos, left + down + offset, glsl::ToVec2(texRect.LeftTop()), runAnim);
buffer.emplace_back(pos, left + up + offset, glsl::ToVec2(texRect.LeftBottom()), runAnim);
buffer.emplace_back(pos, right + down + offset, glsl::ToVec2(texRect.RightTop()), runAnim);
buffer.emplace_back(pos, right + up + offset, glsl::ToVec2(texRect.RightBottom()), runAnim);
}
dp::GLState state(gpu::BOOKMARK_PROGRAM, dp::GLState::UserMarkLayer);
state.SetProgram3dIndex(gpu::BOOKMARK_BILLBOARD_PROGRAM);
state.SetColorTexture(region.GetTexture());
state.SetTextureFilter(gl_const::GLNearest);
uint32_t const kMaxSize = 65000;
dp::Batcher batcher(min(indicesCount, kMaxSize), min(vertexCount, kMaxSize));
dp::SessionGuard guard(batcher, [&key, &outShapes](dp::GLState const & state,
drape_ptr<dp::RenderBucket> && b)
{
outShapes.emplace_back(UserMarkShape(state, move(b), key));
});
dp::AttributeProvider attribProvider(1, buffer.size());
attribProvider.InitStream(0, UPV::GetBinding(), make_ref(buffer.data()));
batcher.InsertListOfStrip(state, make_ref(&attribProvider), dp::Batcher::VertexPerQuad);
}
}
void CacheUserLines(UserMarksProvider const * provider, ref_ptr<dp::TextureManager> textures,
TUserMarkShapes & outShapes)
{
int const kZoomLevel = 10;
map<TileKey, vector<pair<UserLineMark const *, m2::SharedSpline>>> userLines;
for (size_t i = 0; i < provider->GetUserLineCount(); ++i)
{
UserLineMark const * line = provider->GetUserLineMark(i);
size_t const pointCount = line->GetPointCount();
vector<m2::PointD> points;
m2::RectD rect;
points.reserve(pointCount);
for (size_t i = 0; i < pointCount; ++i)
{
points.push_back(line->GetPoint(i));
rect.Add(points.back());
}
TileKey const tileKey = GetTileKeyByPoint(rect.Center(), kZoomLevel);
userLines[tileKey].push_back(make_pair(line, m2::SharedSpline(points)));
}
int const kBatchSize = 5000;
for (auto it = userLines.begin(); it != userLines.end(); ++it)
{
TileKey const & key = it->first;
dp::Batcher batcher(kBatchSize, kBatchSize);
dp::SessionGuard guard(batcher, [&key, &outShapes](dp::GLState const & state,
drape_ptr<dp::RenderBucket> && b)
{
outShapes.emplace_back(UserMarkShape(state, move(b), key));
});
for (auto const & lineData : it->second)
{
UserLineMark const * line = lineData.first;
for (size_t layerIndex = 0; layerIndex < line->GetLayerCount(); ++layerIndex)
{
LineViewParams params;
params.m_tileCenter = key.GetGlobalRect().Center();
params.m_baseGtoPScale = 1.0f;
params.m_cap = dp::RoundCap;
params.m_join = dp::RoundJoin;
params.m_color = line->GetColor(layerIndex);
params.m_depth = line->GetLayerDepth(layerIndex);
params.m_width = line->GetWidth(layerIndex);
params.m_minVisibleScale = 1;
params.m_rank = 0;
LineShape(lineData.second, params).Draw(make_ref(&batcher), textures);
}
}
}
}
} // namespace
TUserMarkShapes CacheUserMarks(UserMarksProvider const * provider, ref_ptr<dp::TextureManager> textures)
{
TUserMarkShapes shapes;
CacheUserPoints(provider, textures, shapes);
CacheUserLines(provider, textures, shapes);
return shapes;
}
} // namespace df
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