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#include "area_renderer.hpp"
#include "brush.hpp"
#include "resource_cache.hpp"
#include "opengl/base_texture.hpp"
#include "../base/logging.hpp"
namespace graphics
{
AreaRenderer::Params::Params()
: m_drawAreas(true)
{
}
AreaRenderer::AreaRenderer(Params const & params)
: base_t(params),
m_drawAreas(params.m_drawAreas)
{}
void AreaRenderer::beginFrame()
{
base_t::beginFrame();
m_areasCount = 0;
m_trianglesCount = 0;
}
void AreaRenderer::endFrame()
{
if (isDebugging())
{
LOG(LINFO, ("drawing ", m_areasCount, " areas, ", m_trianglesCount, " triangles total"));
}
base_t::endFrame();
}
void AreaRenderer::drawTrianglesFan(m2::PointF const * points,
size_t pointsCount,
uint32_t resID,
double depth)
{
++m_areasCount;
m_trianglesCount += (pointsCount - 2);
if (!m_drawAreas)
return;
Resource const * res = base_t::fromID(resID);
ASSERT(res->m_cat == Resource::EBrush, ("triangleFan should be rendered with Brush resource"));
if (res == 0)
{
LOG(LINFO, ("drawTrianglesFan: resID=", resID, " wasn't found on current skin."));
return;
}
ASSERT_GREATER_OR_EQUAL(pointsCount, 2, ());
float texX = res->m_texRect.minX() + 1.0f;
float texY = res->m_texRect.minY() + 1.0f;
GeometryPipeline & p = pipeline(res->m_pipelineID);
shared_ptr<gl::BaseTexture> texture = p.texture();
if (!texture)
{
LOG(LDEBUG, ("returning as no texture is reserved"));
return;
}
texture->mapPixel(texX, texY);
m2::PointF texCoord(texX, texY);
m2::PointF normal(0, 0);
addTexturedFanStrided(points, sizeof(m2::PointF),
&normal, 0,
&texCoord, 0,
pointsCount,
depth,
res->m_pipelineID);
}
void AreaRenderer::drawTrianglesList(m2::PointD const * points, size_t pointsCount, uint32_t resID, double depth)
{
++m_areasCount;
m_trianglesCount += pointsCount / 3;
if (!m_drawAreas)
return;
Resource const * res = base_t::fromID(resID);
ASSERT(res->m_cat == Resource::EBrush, ("area should be rendered with Brush resource"));
if (res == 0)
{
LOG(LINFO, ("drawArea: resID=", resID, " wasn't found on current skin."));
return;
}
if (!hasRoom(pointsCount, pointsCount, res->m_pipelineID))
flush(res->m_pipelineID);
ASSERT_GREATER_OR_EQUAL(pointsCount, 2, ());
float texX = res->m_texRect.minX() + 1.0f;
float texY = res->m_texRect.minY() + 1.0f;
GeometryPipeline & p = pipeline(res->m_pipelineID);
shared_ptr<gl::BaseTexture> texture = p.texture();
if (!texture)
{
LOG(LDEBUG, ("returning as no texture is reserved"));
return;
}
texture->mapPixel(texX, texY);
size_t pointsLeft = pointsCount;
size_t batchOffset = 0;
while (true)
{
size_t batchSize = pointsLeft;
int vLeft = verticesLeft(res->m_pipelineID);
int iLeft = indicesLeft(res->m_pipelineID);
if ((vLeft == -1) || (iLeft == -1))
return;
if (batchSize > vLeft)
/// Rounding to the boundary of 3 vertices
batchSize = vLeft / 3 * 3;
if (batchSize > iLeft)
batchSize = iLeft / 3 * 3;
bool needToFlush = (batchSize < pointsLeft);
m2::PointF texCoord(texX, texY);
m2::PointF normal(0, 0);
addTexturedListStrided(&points[batchOffset], sizeof(m2::PointD),
&normal, 0,
&texCoord, 0,
batchSize,
depth,
res->m_pipelineID);
batchOffset += batchSize;
pointsLeft -= batchSize;
if (needToFlush)
flush(res->m_pipelineID);
if (pointsLeft == 0)
break;
}
}
}
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