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[drape] path symbols refactoring.

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This commit is contained in:
ExMix 2014-11-05 14:38:20 +03:00 • committed by Alex Zolotarev
parent bbf322253f
commit 21416926bb
7 changed files with 65 additions and 135 deletions
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7
drape/shaders/texturing_fragment_shader.fsh
View file

@ -1,10 +1,5 @@
#ifdef GL_FRAGMENT_PRECISION_HIGH
#define MAXPREC highp
#else
#define MAXPREC mediump
#endif
varying lowp vec2 v_texCoords;
varying MAXPREC float v_textureIndex;
varying lowp float v_textureIndex;
~getTexel~

10
drape/shaders/texturing_vertex_shader.vsh
View file

@ -1,16 +1,16 @@
attribute highp vec2 a_position;
attribute highp vec2 a_normal;
attribute highp vec4 a_texCoords;
attribute lowp vec4 a_position;
attribute lowp vec2 a_normal;
attribute lowp vec3 a_texCoords;
uniform highp mat4 modelView;
uniform highp mat4 projection;
varying lowp vec2 v_texCoords;
varying highp float v_textureIndex;
varying lowp float v_textureIndex;
void main(void)
{
gl_Position = (vec4(a_normal.xy, 0, 0) + (vec4(a_position, a_texCoords.w, 1) * modelView)) * projection;
gl_Position = (vec4(a_normal.xy, 0, 0) + a_position * modelView) * projection;
v_texCoords = a_texCoords.st;
v_textureIndex = a_texCoords.z;
}

7
drape_frontend/apply_feature_functors.cpp
View file

@ -338,10 +338,11 @@ void ApplyLineFeature::ProcessRule(Stylist::rule_wrapper_t const & rule)
params.m_depth = depth;
params.m_symbolName = symRule.name();
float const mainScale = df::VisualParams::Instance().GetVisualScale();
params.m_step = symRule.offset() * mainScale;
params.m_offset = symRule.step() * mainScale;
params.m_offset = symRule.offset() * mainScale;
params.m_step = symRule.step() * mainScale;
params.m_baseGtoPScale = m_currentScaleGtoP;
m_context.InsertShape(m_tileKey, dp::MovePointer<MapShape>(new PathSymbolShape(m_spline, params, m_nextScaleGtoP)));
m_context.InsertShape(m_tileKey, dp::MovePointer<MapShape>(new PathSymbolShape(m_spline, params)));
}
else
{

148
drape_frontend/path_symbol_shape.cpp
View file

@ -1,6 +1,8 @@
#include "path_symbol_shape.hpp"
#include "visual_params.hpp"
#include "../drape/glsl_types.hpp"
#include "../drape/glsl_func.hpp"
#include "../drape/overlay_handle.hpp"
#include "../drape/shader_def.hpp"
#include "../drape/attribute_provider.hpp"
@ -11,135 +13,72 @@
namespace df
{
using m2::PointF;
using m2::Spline;
using glsl_types::vec2;
using glsl_types::vec4;
int const VertexPerQuad = 4;
class PathSymbolHandle : public dp::OverlayHandle
{
public:
static const uint8_t PositionAttributeID = 1;
PathSymbolHandle(m2::SharedSpline const & spl, PathSymbolViewParams const & params, int maxCount, float hw, float hh)
: OverlayHandle(FeatureID(), dp::Center, 0.0f),
m_params(params), m_spline(spl), m_scaleFactor(1.0f),
m_positions(maxCount * VertexPerQuad), m_maxCount(maxCount),
m_symbolHalfWidth(hw), m_symbolHalfHeight(hh)
{
SetIsVisible(true);
}
virtual void Update(ScreenBase const & screen)
{
m_scaleFactor = screen.GetScale();
Spline::iterator itr = m_spline.CreateIterator();
itr.Step((m_params.m_offset + m_symbolHalfWidth) * m_scaleFactor);
fill(m_positions.begin(), m_positions.end(), vec2(0.0f, 0.0f));
vec2 * it = &m_positions[0];
for (int i = 0; i < m_maxCount; ++i)
{
if (itr.BeginAgain())
break;
PointF const pos = itr.m_pos;
PointF const dir = itr.m_dir * m_symbolHalfWidth * m_scaleFactor;
PointF const norm(-itr.m_dir.y * m_symbolHalfHeight * m_scaleFactor, itr.m_dir.x * m_symbolHalfHeight * m_scaleFactor);
*it = pos - dir + norm; it++;
*it = pos - dir - norm; it++;
*it = pos + dir + norm; it++;
*it = pos + dir - norm; it++;
itr.Step(m_params.m_step * m_scaleFactor);
}
}
void GetPixelShape(ScreenBase const & screen, Rects & rects) const
{
rects.push_back(m2::RectF(0, 0, 0, 0));
}
virtual m2::RectD GetPixelRect(ScreenBase const & screen) const
{
return m2::RectD(0, 0, 0, 0);
}
virtual void GetAttributeMutation(dp::RefPointer<dp::AttributeBufferMutator> mutator, ScreenBase const & screen) const
{
TOffsetNode const & node = GetOffsetNode(PositionAttributeID);
dp::MutateNode mutateNode;
mutateNode.m_region = node.second;
mutateNode.m_data = dp::MakeStackRefPointer<void>(&m_positions[0]);
mutator->AddMutation(node.first, mutateNode);
}
private:
PathSymbolViewParams m_params;
m2::SharedSpline m_spline;
float m_scaleFactor;
mutable vector<vec2> m_positions;
int const m_maxCount;
float m_symbolHalfWidth;
float m_symbolHalfHeight;
};
PathSymbolShape::PathSymbolShape(m2::SharedSpline const & spline,
PathSymbolViewParams const & params,
float nextScaleGtoP)
PathSymbolViewParams const & params)
: m_params(params)
, m_spline(spline)
, m_nextScaleGtoP(nextScaleGtoP)
{
}
void PathSymbolShape::Draw(dp::RefPointer<dp::Batcher> batcher, dp::RefPointer<dp::TextureSetHolder> textures) const
{
int maxCount = (m_spline->GetLength() * m_nextScaleGtoP - m_params.m_offset) / m_params.m_step + 1;
if (maxCount <= 0)
return;
buffer_vector<glsl::Quad3, 128> positions;
buffer_vector<glsl::Quad2, 128> normals;
buffer_vector<glsl::Quad3, 128> texCoord;
int const vertCnt = maxCount * VertexPerQuad;
vector<vec2> positions(vertCnt, vec2(0.0f, 0.0f));
vector<vec4> uvs(vertCnt);
vec4 * tc = &uvs[0];
dp::TextureSetHolder::SymbolRegion region;
textures->GetSymbolRegion(m_params.m_symbolName, region);
m2::RectF const & rect = region.GetTexRect();
float textureNum = (float)region.GetTextureNode().m_textureOffset;
m2::PointU pixelSize;
region.GetPixelSize(pixelSize);
double pToGScale = 1.0 / m_params.m_baseGtoPScale;
double halfW = pixelSize.x / 2.0f;
double halfH = pixelSize.y / 2.0f;
for(int i = 0; i < maxCount; ++i)
m2::Spline::iterator splineIter = m_spline.CreateIterator();
splineIter.Step(m_params.m_offset * pToGScale);
float step = m_params.m_step * pToGScale;
while (!splineIter.BeginAgain())
{
*tc = vec4(rect.minX(), rect.maxY(), textureNum, m_params.m_depth);
tc++;
*tc = vec4(rect.minX(), rect.minY(), textureNum, m_params.m_depth);
tc++;
*tc = vec4(rect.maxX(), rect.maxY(), textureNum, m_params.m_depth);
tc++;
*tc = vec4(rect.maxX(), rect.minY(), textureNum, m_params.m_depth);
tc++;
glsl::dvec2 pos = glsl::dvec2(splineIter.m_pos.x, splineIter.m_pos.y);
glsl::dvec2 n = pToGScale * halfH * glsl::dvec2(-splineIter.m_dir.y, splineIter.m_dir.x);
glsl::dvec2 d = pToGScale * halfW * glsl::dvec2(splineIter.m_dir.x, splineIter.m_dir.y);
positions.push_back(glsl::Quad3(glsl::vec3(pos - d + n, m_params.m_depth),
glsl::vec3(pos - d - n, m_params.m_depth),
glsl::vec3(pos + d + n, m_params.m_depth),
glsl::vec3(pos + d - n, m_params.m_depth)));
splineIter.Step(step);
}
if (positions.empty())
return;
normals.resize(positions.size(), glsl::Quad2(0.0f, 0.0f, 0.0f, 0.0f,
0.0f, 0.0f, 0.0f, 0.0f));
m2::RectF const & rect = region.GetTexRect();
float const textureNum = region.GetTextureNode().GetOffset();
texCoord.resize(positions.size(), glsl::Quad3(glsl::vec3(rect.minX(), rect.maxY(), textureNum),
glsl::vec3(rect.minX(), rect.minY(), textureNum),
glsl::vec3(rect.maxX(), rect.maxY(), textureNum),
glsl::vec3(rect.maxX(), rect.minY(), textureNum)));
dp::GLState state(gpu::TEXTURING_PROGRAM, dp::GLState::DynamicGeometry);
state.SetTextureSet(region.GetTextureNode().m_textureSet);
state.SetBlending(dp::Blending(true));
dp::AttributeProvider provider(3, vertCnt);
dp::AttributeProvider provider(3, positions.size() * VertexPerQuad);
{
dp::BindingInfo position(1, PathSymbolHandle::PositionAttributeID);
dp::BindingInfo position(1/*, PathSymbolHandle::PositionAttributeID*/);
dp::BindingDecl & decl = position.GetBindingDecl(0);
decl.m_attributeName = "a_position";
decl.m_componentCount = 2;
decl.m_componentCount = 3;
decl.m_componentType = gl_const::GLFloatType;
decl.m_offset = 0;
decl.m_stride = 0;
provider.InitStream(0, position, dp::MakeStackRefPointer(&positions[0]));
provider.InitStream(0, position, dp::MakeStackRefPointer(positions.data()));
}
{
dp::BindingInfo normal(1);
@ -149,21 +88,20 @@ void PathSymbolShape::Draw(dp::RefPointer<dp::Batcher> batcher, dp::RefPointer<d
decl.m_componentType = gl_const::GLFloatType;
decl.m_offset = 0;
decl.m_stride = 0;
provider.InitStream(1, normal, dp::MakeStackRefPointer(&positions[0]));
provider.InitStream(1, normal, dp::MakeStackRefPointer(normals.data()));
}
{
dp::BindingInfo texcoord(1);
dp::BindingDecl & decl = texcoord.GetBindingDecl(0);
decl.m_attributeName = "a_texCoords";
decl.m_componentCount = 4;
decl.m_componentCount = 3;
decl.m_componentType = gl_const::GLFloatType;
decl.m_offset = 0;
decl.m_stride = 0;
provider.InitStream(2, texcoord, dp::MakeStackRefPointer(&uvs[0]));
provider.InitStream(2, texcoord, dp::MakeStackRefPointer(texCoord.data()));
}
dp::OverlayHandle * handle = new PathSymbolHandle(m_spline, m_params, maxCount, pixelSize.x / 2.0f, pixelSize.y / 2.0f);
batcher->InsertListOfStrip(state, dp::MakeStackRefPointer(&provider), dp::MovePointer(handle), VertexPerQuad);
batcher->InsertListOfStrip(state, dp::MakeStackRefPointer(&provider), VertexPerQuad);
}
}

7
drape_frontend/path_symbol_shape.hpp
View file

@ -2,11 +2,7 @@
#include "map_shape.hpp"
#include "shape_view_params.hpp"
#include "common_structures.hpp"
#include "../std/vector.hpp"
#include "../geometry/point2d.hpp"
#include "../geometry/spline.hpp"
namespace df
@ -15,13 +11,12 @@ namespace df
class PathSymbolShape : public MapShape
{
public:
PathSymbolShape(m2::SharedSpline const & spline, PathSymbolViewParams const & params, float nextScaleGtoP);
PathSymbolShape(m2::SharedSpline const & spline, PathSymbolViewParams const & params);
virtual void Draw(dp::RefPointer<dp::Batcher> batcher, dp::RefPointer<dp::TextureSetHolder> textures) const;
private:
PathSymbolViewParams m_params;
m2::SharedSpline m_spline;
float m_nextScaleGtoP;
};
}

20
drape_frontend/poi_symbol_shape.cpp
View file

@ -34,10 +34,10 @@ void PoiSymbolShape::Draw(dp::RefPointer<dp::Batcher> batcher, dp::RefPointer<dp
float const texture = static_cast<float>(region.GetTextureNode().m_textureOffset);
float positions[] = {
m_pt.x, m_pt.y,
m_pt.x, m_pt.y,
m_pt.x, m_pt.y,
m_pt.x, m_pt.y
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[] = {
@ -48,10 +48,10 @@ void PoiSymbolShape::Draw(dp::RefPointer<dp::Batcher> batcher, dp::RefPointer<dp
};
float uvs[] = {
texRect.minX(), texRect.maxY(), texture, depth,
texRect.minX(), texRect.minY(), texture, depth,
texRect.maxX(), texRect.maxY(), texture, depth,
texRect.maxX(), texRect.minY(), texture, depth
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);
@ -59,7 +59,7 @@ void PoiSymbolShape::Draw(dp::RefPointer<dp::Batcher> batcher, dp::RefPointer<dp
dp::BindingInfo position(1, 1);
dp::BindingDecl & decl = position.GetBindingDecl(0);
decl.m_attributeName = "a_position";
decl.m_componentCount = 2;
decl.m_componentCount = 3;
decl.m_componentType = gl_const::GLFloatType;
decl.m_offset = 0;
decl.m_stride = 0;
@ -79,7 +79,7 @@ void PoiSymbolShape::Draw(dp::RefPointer<dp::Batcher> batcher, dp::RefPointer<dp
dp::BindingInfo texcoord(1);
dp::BindingDecl & decl = texcoord.GetBindingDecl(0);
decl.m_attributeName = "a_texCoords";
decl.m_componentCount = 4;
decl.m_componentCount = 3;
decl.m_componentType = gl_const::GLFloatType;
decl.m_offset = 0;
decl.m_stride = 0;

1
drape_frontend/shape_view_params.hpp
View file

@ -80,6 +80,7 @@ struct PathSymbolViewParams : CommonViewParams
string m_symbolName;
float m_offset;
float m_step;
float m_baseGtoPScale;
};
} // namespace df