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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/shader_def.hpp"
#include "drape_frontend/shape_view_params.hpp"
#include "drape_frontend/tile_utils.hpp"
#include "drape/utils/vertex_decl.hpp"
#include "drape/attribute_provider.hpp"
#include "drape/batcher.hpp"
#include "geometry/clipping.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;
};
} // namespace
void CacheUserMarks(TileKey const & tileKey, ref_ptr<dp::TextureManager> textures,
UserMarksRenderCollection const & renderParams, MarkIndexesCollection const & indexes,
dp::Batcher & batcher)
{
using UPV = UserPointVertex;
uint32_t const vertexCount = static_cast<uint32_t>(indexes.size()) * dp::Batcher::VertexPerQuad;
buffer_vector<UPV, 128> buffer;
buffer.reserve(vertexCount);
dp::TextureManager::SymbolRegion region;
for (auto const markIndex : indexes)
{
UserMarkRenderParams const & renderInfo = renderParams[markIndex];
if (!renderInfo.m_isVisible)
continue;
textures->GetSymbolRegion(renderInfo.m_symbolName, region);
m2::RectF const & texRect = region.GetTexRect();
m2::PointF const pxSize = region.GetPixelSize();
dp::Anchor const anchor = renderInfo.m_anchor;
m2::PointD const pt = MapShape::ConvertToLocal(renderInfo.m_pivot, tileKey.GetGlobalRect().Center(), kShapeCoordScalar);
glsl::vec3 const pos = glsl::vec3(glsl::ToVec2(pt), renderInfo.m_depth);
bool const runAnim = renderInfo.m_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 = renderInfo.m_pixelOffset;
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);
dp::AttributeProvider attribProvider(1, static_cast<uint32_t>(buffer.size()));
attribProvider.InitStream(0, UPV::GetBinding(), make_ref(buffer.data()));
batcher.InsertListOfStrip(state, make_ref(&attribProvider), dp::Batcher::VertexPerQuad);
}
void CacheUserLines(TileKey const & tileKey, ref_ptr<dp::TextureManager> textures,
UserLinesRenderCollection const & renderParams, LineIndexesCollection const & indexes,
dp::Batcher & batcher)
{
for (auto lineIndex : indexes)
{
UserLineRenderParams const & renderInfo = renderParams[lineIndex];
std::vector<m2::SharedSpline> const splines = m2::ClipSplineByRect(tileKey.GetGlobalRect(), renderInfo.m_spline);
for (auto const & spline : splines)
{
for (auto const & layer : renderInfo.m_layers)
{
LineViewParams params;
params.m_tileCenter = tileKey.GetGlobalRect().Center();
params.m_baseGtoPScale = 1.0f;
params.m_cap = dp::RoundCap;
params.m_join = dp::RoundJoin;
params.m_color = layer.m_color;
params.m_depth = layer.m_depth;
params.m_width = layer.m_width;
params.m_minVisibleScale = 1;
params.m_rank = 0;
LineShape(spline, params).Draw(make_ref(&batcher), textures);
}
}
}
}
} // namespace df
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