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#include "drape_frontend/poi_symbol_shape.hpp"
#include "drape/utils/vertex_decl.hpp"
#include "drape/attribute_provider.hpp"
#include "drape/texture_manager.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::TextureManager> textures) const
{
dp::TextureManager::SymbolRegion region;
textures->GetSymbolRegion(m_params.m_symbolName, region);
m2::PointU pixelSize = region.GetPixelSize();
m2::PointF const halfSize(pixelSize.x / 2.0, pixelSize.y / 2.0);
m2::RectF const & texRect = region.GetTexRect();
glsl::vec3 position = glsl::vec3(glsl::ToVec2(m_pt), m_params.m_depth);
gpu::SolidTexturingVertex vertexes[] =
{
gpu::SolidTexturingVertex{ position,
glsl::vec2(-halfSize.x, halfSize.y),
glsl::vec2(texRect.minX(), texRect.maxY())},
gpu::SolidTexturingVertex{ position,
glsl::vec2(-halfSize.x, -halfSize.y),
glsl::vec2(texRect.minX(), texRect.minY())},
gpu::SolidTexturingVertex{ position,
glsl::vec2(halfSize.x, halfSize.y),
glsl::vec2(texRect.maxX(), texRect.maxY())},
gpu::SolidTexturingVertex{ position,
glsl::vec2(halfSize.x, -halfSize.y),
glsl::vec2(texRect.maxX(), texRect.minY())},
};
dp::GLState state(gpu::TEXTURING_PROGRAM, dp::GLState::OverlayLayer);
state.SetBlending(dp::Blending(true));
state.SetColorTexture(region.GetTexture());
dp::AttributeProvider provider(1, 4);
provider.InitStream(0, gpu::SolidTexturingVertex::GetBindingInfo(), dp::MakeStackRefPointer<void>(vertexes));
dp::OverlayHandle * handle = new dp::SquareHandle(m_params.m_id,
dp::Center,
m_pt,
pixelSize,
m_params.m_depth);
batcher->InsertTriangleStrip(state, dp::MakeStackRefPointer(&provider), dp::MovePointer(handle));
}
} // namespace df
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