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#include "poi_symbol_shape.hpp"
#include "../drape/texture_set_holder.hpp"
#include "../drape/attribute_provider.hpp"
#include "../drape/glstate.hpp"
#include "../drape/batcher.hpp"
#include "../drape/shader_def.hpp"
namespace df
{
PoiSymbolShape::PoiSymbolShape(m2::PointF const & mercatorPt, PoiSymbolViewParams const & params)
: m_pt(mercatorPt)
, m_params(params)
{
}
void PoiSymbolShape::Draw(dp::RefPointer<dp::Batcher> batcher, dp::RefPointer<dp::TextureSetHolder> textures) const
{
dp::TextureSetHolder::SymbolRegion region;
textures->GetSymbolRegion(m_params.m_symbolName, region);
dp::GLState state(gpu::TEXTURING_PROGRAM, dp::GLState::OverlayLayer);
state.SetTextureSet(region.GetTextureNode().m_textureSet);
state.SetBlending(dp::Blending(true));
m2::PointU pixelSize;
region.GetPixelSize(pixelSize);
m2::PointF const halfSize(pixelSize.x / 2.0, pixelSize.y / 2.0);
m2::RectF const & texRect = region.GetTexRect();
float const depth = m_params.m_depth;
float const texture = static_cast<float>(region.GetTextureNode().m_textureOffset);
float positions[] = {
m_pt.x, m_pt.y, depth,
m_pt.x, m_pt.y, depth,
m_pt.x, m_pt.y, depth,
m_pt.x, m_pt.y, depth
};
float normals[] = {
-halfSize.x, halfSize.y,
-halfSize.x, -halfSize.y,
halfSize.x, halfSize.y,
halfSize.x, -halfSize.y
};
float uvs[] = {
texRect.minX(), texRect.maxY(), texture,
texRect.minX(), texRect.minY(), texture,
texRect.maxX(), texRect.maxY(), texture,
texRect.maxX(), texRect.minY(), texture
};
dp::AttributeProvider provider(3, 4);
{
dp::BindingInfo position(1, 1);
dp::BindingDecl & decl = position.GetBindingDecl(0);
decl.m_attributeName = "a_position";
decl.m_componentCount = 3;
decl.m_componentType = gl_const::GLFloatType;
decl.m_offset = 0;
decl.m_stride = 0;
provider.InitStream(0, position, dp::MakeStackRefPointer<void>(positions));
}
{
dp::BindingInfo normal(1);
dp::BindingDecl & decl = normal.GetBindingDecl(0);
decl.m_attributeName = "a_normal";
decl.m_componentCount = 2;
decl.m_componentType = gl_const::GLFloatType;
decl.m_offset = 0;
decl.m_stride = 0;
provider.InitStream(1, normal, dp::MakeStackRefPointer<void>(normals));
}
{
dp::BindingInfo texcoord(1);
dp::BindingDecl & decl = texcoord.GetBindingDecl(0);
decl.m_attributeName = "a_texCoords";
decl.m_componentCount = 3;
decl.m_componentType = gl_const::GLFloatType;
decl.m_offset = 0;
decl.m_stride = 0;
provider.InitStream(2, texcoord, dp::MakeStackRefPointer<void>(uvs));
}
dp::OverlayHandle * handle = new dp::SquareHandle(m_params.m_id,
dp::Center,
m_pt,
pixelSize,
depth);
batcher->InsertTriangleStrip(state, dp::MakeStackRefPointer(&provider), dp::MovePointer(handle));
}
} // namespace df
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