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In OpenGl2Renderer, do not issue a draw call per DrawVectorText call. 

This significantly improves performance with ANGLE.
pull/144/head
EvilSpirit 2016-12-19 22:27:08 +07:00 committed by whitequark
parent 727c0a97dc
commit 10251c6484
1 changed files with 13 additions and 23 deletions
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36
src/render/rendergl2.cpp
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@ -100,7 +100,6 @@ public:
void DrawLine(const Vector &a, const Vector &b, hStroke hcs) override;
void DrawEdges(const SEdgeList &el, hStroke hcs) override;
void DrawEdgesInternal(const SEdgeList &el, hStroke hcs);
bool DrawBeziers(const SBezierList &bl, hStroke hcs) override { return false; }
void DrawOutlines(const SOutlineList &ol, hStroke hcs, DrawOutlinesAs mode) override;
void DrawVectorText(const std::string &text, double height,
@ -436,23 +435,6 @@ void OpenGl2Renderer::DrawEdges(const SEdgeList &el, hStroke hcs) {
}
}
void OpenGl2Renderer::DrawEdgesInternal(const SEdgeList &el, hStroke hcs) {
if(el.l.n == 0) return;
Stroke *stroke = SelectStroke(hcs);
if(stroke->stipplePattern == StipplePattern::ZIGZAG ||
stroke->stipplePattern == StipplePattern::FREEHAND)
{
for(const SEdge *e = el.l.First(); e; e = el.l.NextAfter(e)) {
DoStippledLine(e->a, e->b, hcs);
}
return;
}
edgeRenderer.SetStroke(*stroke, 1.0 / camera.scale);
edgeRenderer.Draw(el);
}
void OpenGl2Renderer::DrawOutlines(const SOutlineList &ol, hStroke hcs, DrawOutlinesAs mode) {
if(ol.l.n == 0) return;
@ -468,11 +450,16 @@ void OpenGl2Renderer::DrawOutlines(const SOutlineList &ol, hStroke hcs, DrawOutl
void OpenGl2Renderer::DrawVectorText(const std::string &text, double height,
const Vector &o, const Vector &u, const Vector &v,
hStroke hcs) {
SEdgeList el = {};
auto traceEdge = [&](Vector a, Vector b) { el.AddEdge(a, b); };
SEdgeListItem *eli = lines.FindByIdNoOops(hcs);
if(eli == NULL) {
SEdgeListItem item = {};
item.h = hcs;
lines.Add(&item);
eli = lines.FindByIdNoOops(hcs);
}
SEdgeList &lines = eli->lines;
auto traceEdge = [&](Vector a, Vector b) { lines.AddEdge(a, b); };
VectorFont::Builtin()->Trace(height, o, u, v, text, traceEdge, camera);
DrawEdgesInternal(el, hcs);
el.Clear();
}
void OpenGl2Renderer::DrawQuad(const Vector &a, const Vector &b, const Vector &c, const Vector &d,
@ -643,7 +630,10 @@ void OpenGl2Renderer::FlushFrame() {
meshes.Clear();
for(SEdgeListItem &eli : lines) {
DrawEdgesInternal(eli.lines, eli.h);
Stroke *stroke = SelectStroke(eli.h);
edgeRenderer.SetStroke(*stroke, 1.0 / camera.scale);
edgeRenderer.Draw(eli.lines);
eli.lines.Clear();
}
lines.Clear();