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[core] Pass pitch-scaling vertex attributes and uniforms to shaders.

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This commit is contained in:
Chris Loer
2017-05-17 21:40:57 -07:00
committed by Ansis Brammanis
parent 59df3a90f4
commit 8f5e0b66ab
9 changed files with 53 additions and 21 deletions
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23
src/mbgl/layout/symbol_layout.cpp
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@@ -504,7 +504,7 @@ std::unique_ptr<SymbolBucket> SymbolLayout::place(CollisionTile& collisionTile)
for (const auto& symbol : symbolInstance.glyphQuads) {
addSymbol(
bucket->text, *bucket->textSizeBinder, symbol, feature, placementZoom,
keepUpright, textPlacement, collisionTile.config.angle, symbolInstance.writingModes);
keepUpright, textPlacement, collisionTile.config.angle, symbolInstance.writingModes, symbolInstance.point);
}
}
}
@@ -515,7 +515,7 @@ std::unique_ptr<SymbolBucket> SymbolLayout::place(CollisionTile& collisionTile)
if (iconScale < collisionTile.maxScale && symbolInstance.iconQuad) {
addSymbol(
bucket->icon, *bucket->iconSizeBinder, *symbolInstance.iconQuad, feature, placementZoom,
keepUpright, iconPlacement, collisionTile.config.angle, symbolInstance.writingModes);
keepUpright, iconPlacement, collisionTile.config.angle, symbolInstance.writingModes, symbolInstance.point);
}
}
@@ -541,7 +541,8 @@ void SymbolLayout::addSymbol(Buffer& buffer,
const bool keepUpright,
const style::SymbolPlacementType placement,
const float placementAngle,
const WritingModeType writingModes) {
const WritingModeType writingModes,
const Point<float> labelAnchor) {
constexpr const uint16_t vertexLength = 4;
const auto &tl = symbol.tl;
@@ -590,13 +591,13 @@ void SymbolLayout::addSymbol(Buffer& buffer,
uint8_t glyphAngle = std::round((symbol.glyphAngle / (M_PI * 2)) * 256);
// coordinates (2 triangles)
buffer.vertices.emplace_back(SymbolLayoutAttributes::vertex(anchorPoint, tl, tex.x, tex.y,
buffer.vertices.emplace_back(SymbolLayoutAttributes::vertex(anchorPoint, tl, labelAnchor, tex.x, tex.y,
minZoom, maxZoom, placementZoom, glyphAngle));
buffer.vertices.emplace_back(SymbolLayoutAttributes::vertex(anchorPoint, tr, tex.x + tex.w, tex.y,
buffer.vertices.emplace_back(SymbolLayoutAttributes::vertex(anchorPoint, tr, labelAnchor, tex.x + tex.w, tex.y,
minZoom, maxZoom, placementZoom, glyphAngle));
buffer.vertices.emplace_back(SymbolLayoutAttributes::vertex(anchorPoint, bl, tex.x, tex.y + tex.h,
buffer.vertices.emplace_back(SymbolLayoutAttributes::vertex(anchorPoint, bl, labelAnchor, tex.x, tex.y + tex.h,
minZoom, maxZoom, placementZoom, glyphAngle));
buffer.vertices.emplace_back(SymbolLayoutAttributes::vertex(anchorPoint, br, tex.x + tex.w, tex.y + tex.h,
buffer.vertices.emplace_back(SymbolLayoutAttributes::vertex(anchorPoint, br, labelAnchor, tex.x + tex.w, tex.y + tex.h,
minZoom, maxZoom, placementZoom, glyphAngle));
sizeBinder.populateVertexVector(feature);
@@ -646,10 +647,10 @@ void SymbolLayout::addToDebugBuffers(CollisionTile& collisionTile, SymbolBucket&
auto& segment = collisionBox.segments.back();
uint16_t index = segment.vertexLength;
collisionBox.vertices.emplace_back(CollisionBoxProgram::vertex(anchor, tl, maxZoom, placementZoom));
collisionBox.vertices.emplace_back(CollisionBoxProgram::vertex(anchor, tr, maxZoom, placementZoom));
collisionBox.vertices.emplace_back(CollisionBoxProgram::vertex(anchor, br, maxZoom, placementZoom));
collisionBox.vertices.emplace_back(CollisionBoxProgram::vertex(anchor, bl, maxZoom, placementZoom));
collisionBox.vertices.emplace_back(CollisionBoxProgram::vertex(anchor, symbolInstance.point, tl, maxZoom, placementZoom));
collisionBox.vertices.emplace_back(CollisionBoxProgram::vertex(anchor, symbolInstance.point, tr, maxZoom, placementZoom));
collisionBox.vertices.emplace_back(CollisionBoxProgram::vertex(anchor, symbolInstance.point, br, maxZoom, placementZoom));
collisionBox.vertices.emplace_back(CollisionBoxProgram::vertex(anchor, symbolInstance.point, bl, maxZoom, placementZoom));
collisionBox.lines.emplace_back(index + 0, index + 1);
collisionBox.lines.emplace_back(index + 1, index + 2);

3
src/mbgl/layout/symbol_layout.hpp
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@@ -65,7 +65,8 @@ private:
const bool keepUpright,
const style::SymbolPlacementType,
const float placementAngle,
WritingModeType writingModes);
WritingModeType writingModes,
const Point<float> labelAnchor);
// Stores the layer so that we can hold on to GeometryTileFeature instances in SymbolFeature,
// which may reference data from this object.

2
src/mbgl/programs/attributes.hpp
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@@ -23,6 +23,8 @@ inline uint16_t packUint8Pair(T a, T b) {
MBGL_DEFINE_ATTRIBUTE(int16_t, 2, a_pos);
MBGL_DEFINE_ATTRIBUTE(int16_t, 2, a_extrude);
MBGL_DEFINE_ATTRIBUTE(int16_t, 4, a_pos_offset);
MBGL_DEFINE_ATTRIBUTE(int16_t, 2, a_label_pos);
MBGL_DEFINE_ATTRIBUTE(int16_t, 2, a_anchor_pos);
MBGL_DEFINE_ATTRIBUTE(uint16_t, 2, a_texture_pos);
MBGL_DEFINE_ATTRIBUTE(int16_t, 3, a_normal);
MBGL_DEFINE_ATTRIBUTE(uint16_t, 1, a_edgedistance);

2
src/mbgl/programs/collision_box_program.cpp
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@@ -2,6 +2,6 @@
namespace mbgl {
static_assert(sizeof(CollisionBoxProgram::LayoutVertex) == 10, "expected CollisionBoxVertex size");
static_assert(sizeof(CollisionBoxProgram::LayoutVertex) == 14, "expected CollisionBoxVertex size");
} // namespace mbgl

12
src/mbgl/programs/collision_box_program.hpp
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@@ -18,6 +18,7 @@ MBGL_DEFINE_UNIFORM_SCALAR(float, u_maxzoom);
using CollisionBoxAttributes = gl::Attributes<
attributes::a_pos,
attributes::a_anchor_pos,
attributes::a_extrude,
attributes::a_data<uint8_t, 2>>;
@@ -29,18 +30,25 @@ class CollisionBoxProgram : public Program<
uniforms::u_matrix,
uniforms::u_scale,
uniforms::u_zoom,
uniforms::u_maxzoom>,
uniforms::u_maxzoom,
uniforms::u_collision_y_stretch,
uniforms::u_camera_to_center_distance,
uniforms::u_pitch>,
style::Properties<>>
{
public:
using Program::Program;
static LayoutVertex vertex(Point<float> a, Point<float> o, float maxzoom, float placementZoom) {
static LayoutVertex vertex(Point<float> a, Point<float> anchor, Point<float> o, float maxzoom, float placementZoom) {
return LayoutVertex {
{{
static_cast<int16_t>(a.x),
static_cast<int16_t>(a.y)
}},
{{
static_cast<int16_t>(anchor.x),
static_cast<int16_t>(anchor.y)
}},
{{
static_cast<int16_t>(::round(o.x)),
static_cast<int16_t>(::round(o.y))

6
src/mbgl/programs/symbol_program.cpp
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@@ -10,7 +10,7 @@ namespace mbgl {
using namespace style;
static_assert(sizeof(SymbolLayoutVertex) == 16, "expected SymbolLayoutVertex size");
static_assert(sizeof(SymbolLayoutVertex) == 20, "expected SymbolLayoutVertex size");
std::unique_ptr<SymbolSizeBinder> SymbolSizeBinder::create(const float tileZoom,
const style::DataDrivenPropertyValue<float>& sizeProperty,
@@ -59,6 +59,9 @@ Values makeValues(const bool isText,
uniforms::u_fadetexture::Value{ 1 },
uniforms::u_is_text::Value{ isText },
uniforms::u_collision_y_stretch::Value{ tile.tile.yStretch() },
uniforms::u_camera_to_center_distance::Value{ state.getCameraToCenterDistance() },
uniforms::u_pitch::Value{ state.getPitch() },
uniforms::u_max_camera_distance::Value{ 10.0f },
std::forward<Args>(args)...
};
}
@@ -103,7 +106,6 @@ typename SymbolSDFProgram<PaintProperties>::UniformValues SymbolSDFProgram<Paint
tile,
state,
uniforms::u_gamma_scale::Value{ gammaScale },
uniforms::u_pitch::Value{ state.getPitch() },
uniforms::u_bearing::Value{ -1.0f * state.getAngle() },
uniforms::u_aspect_ratio::Value{ (state.getSize().width * 1.0f) / (state.getSize().height * 1.0f) },
uniforms::u_pitch_with_map::Value{ values.pitchAlignment == AlignmentType::Map },

21
src/mbgl/programs/symbol_program.hpp
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@@ -42,15 +42,17 @@ MBGL_DEFINE_UNIFORM_SCALAR(bool, u_is_size_feature_constant);
MBGL_DEFINE_UNIFORM_SCALAR(float, u_size_t);
MBGL_DEFINE_UNIFORM_SCALAR(float, u_size);
MBGL_DEFINE_UNIFORM_SCALAR(float, u_layout_size);
MBGL_DEFINE_UNIFORM_SCALAR(float, u_collision_y_stretch);
MBGL_DEFINE_UNIFORM_SCALAR(float, u_max_camera_distance);
} // namespace uniforms
struct SymbolLayoutAttributes : gl::Attributes<
attributes::a_pos_offset,
attributes::a_label_pos,
attributes::a_data<uint16_t, 4>>
{
static Vertex vertex(Point<float> a,
Point<float> o,
Point<float> labelAnchor,
uint16_t tx,
uint16_t ty,
float minzoom,
@@ -65,6 +67,10 @@ struct SymbolLayoutAttributes : gl::Attributes<
static_cast<int16_t>(::round(o.x * 64)), // use 1/64 pixels for placement
static_cast<int16_t>(::round(o.y * 64))
}},
{{
static_cast<int16_t>(labelAnchor.x),
static_cast<int16_t>(labelAnchor.y)
}},
{{
tx,
ty,
@@ -391,7 +397,10 @@ class SymbolIconProgram : public SymbolProgram<
uniforms::u_texture,
uniforms::u_fadetexture,
uniforms::u_is_text,
uniforms::u_collision_y_stretch>,
uniforms::u_collision_y_stretch,
uniforms::u_camera_to_center_distance,
uniforms::u_pitch,
uniforms::u_max_camera_distance>,
style::IconPaintProperties>
{
public:
@@ -425,8 +434,10 @@ class SymbolSDFProgram : public SymbolProgram<
uniforms::u_fadetexture,
uniforms::u_is_text,
uniforms::u_collision_y_stretch,
uniforms::u_gamma_scale,
uniforms::u_camera_to_center_distance,
uniforms::u_pitch,
uniforms::u_max_camera_distance,
uniforms::u_gamma_scale,
uniforms::u_bearing,
uniforms::u_aspect_ratio,
uniforms::u_pitch_with_map,
@@ -447,8 +458,10 @@ public:
uniforms::u_fadetexture,
uniforms::u_is_text,
uniforms::u_collision_y_stretch,
uniforms::u_gamma_scale,
uniforms::u_camera_to_center_distance,
uniforms::u_pitch,
uniforms::u_max_camera_distance,
uniforms::u_gamma_scale,
uniforms::u_bearing,
uniforms::u_aspect_ratio,
uniforms::u_pitch_with_map,

2
src/mbgl/programs/uniforms.hpp
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@@ -14,6 +14,8 @@ MBGL_DEFINE_UNIFORM_SCALAR(Color, u_color);
MBGL_DEFINE_UNIFORM_SCALAR(float, u_blur);
MBGL_DEFINE_UNIFORM_SCALAR(float, u_zoom);
MBGL_DEFINE_UNIFORM_SCALAR(float, u_collision_y_stretch);
MBGL_DEFINE_UNIFORM_SCALAR(float, u_camera_to_center_distance);
MBGL_DEFINE_UNIFORM_SCALAR(float, u_pitch);
MBGL_DEFINE_UNIFORM_SCALAR(float, u_bearing);
MBGL_DEFINE_UNIFORM_SCALAR(float, u_radius);

3
src/mbgl/renderer/painters/painter_symbol.cpp
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@@ -152,6 +152,9 @@ void Painter::renderSymbol(PaintParameters& parameters,
uniforms::u_scale::Value{ std::pow(2.0f, float(state.getZoom() - tile.tile.id.overscaledZ)) },
uniforms::u_zoom::Value{ float(state.getZoom() * 10) },
uniforms::u_maxzoom::Value{ float((tile.id.canonical.z + 1) * 10) },
uniforms::u_collision_y_stretch::Value{ tile.tile.yStretch() },
uniforms::u_camera_to_center_distance::Value{ state.getCameraToCenterDistance() },
uniforms::u_pitch::Value{ state.getPitch() }
},
*bucket.collisionBox.vertexBuffer,
*bucket.collisionBox.indexBuffer,