gwm17/implot
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prototyping renderer change

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This commit is contained in:
Evan Pezent 2020-06-07 20:44:37 -05:00
parent 13d98c22d7
commit 0dea5f8bb7
1 changed files with 76 additions and 58 deletions
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134
implot.cpp
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@ -2164,9 +2164,23 @@ inline void RenderMarkers(Getter getter, Transformer transformer, ImDrawList& Dr
}
}
template <typename Getter, typename Transformer>
struct LineRenderer {
LineRenderer(ImU32 col, float weight) { Col = col; Weight = weight; }
inline void render(ImDrawList& DrawList, const ImVec2& p1, const ImVec2& p2, ImVec2 uv) {
inline LineRenderer(Getter _getter, Transformer _transformer, ImU32 col, float weight) :
getter(_getter),
transformer(_transformer)
{
Prims = getter.Count - 1;
Col = col;
Weight = weight;
p1 = transformer(getter(0));
}
inline bool operator()(ImDrawList& DrawList, ImVec2 uv, int prim) {
ImVec2 p2 = transformer(getter(prim + 1));
if (!gp.BB_Plot.Overlaps(ImRect(ImMin(p1, p2), ImMax(p1, p2)))) {
p1 = p2;
return false;
}
float dx = p2.x - p1.x;
float dy = p2.y - p1.y;
IM_NORMALIZE2F_OVER_ZERO(dx, dy);
@ -2197,16 +2211,29 @@ struct LineRenderer {
DrawList._IdxWritePtr[5] = (ImDrawIdx)(DrawList._VtxCurrentIdx + 3);
DrawList._IdxWritePtr += 6;
DrawList._VtxCurrentIdx += 4;
p1 = p2;
return true;
}
Getter getter;
Transformer transformer;
int Prims;
ImU32 Col;
float Weight;
ImVec2 p1;
static const int IdxConsumed = 6;
static const int VtxConsumed = 4;
};
struct FillRenderer {
FillRenderer(ImU32 col, float zero) { Col = col; Zero = zero; }
inline void render(ImDrawList& DrawList, const ImVec2& p1, const ImVec2& p2, ImVec2 uv) {
template <typename Getter, typename Transformer>
struct LineFillRenderer {
LineFillRenderer(Getter _getter, Transformer _transformer, ImU32 col, float zero) {
getter = _getter;
transformer = _transformer;
Col = col;
Zero = zero;
p1 = transformer(getter(0));
}
inline void operator()(ImDrawList& DrawList, ImVec2 uv) {
const int crosses_zero = (p1.y > Zero && p2.y < Zero) || (p1.y < Zero && p2.y > Zero); // could do y*y < 0 earlier on
const float xmid = p1.x + (p2.x - p1.x) / (p2.y-p1.y) * (Zero - p1.y);
DrawList._VtxWritePtr[0].pos = p1;
@ -2234,55 +2261,53 @@ struct FillRenderer {
DrawList._IdxWritePtr += 6;
DrawList._VtxCurrentIdx += 5;
}
int Prims;
ImU32 Col;
float Zero;
ImVec2 p1;
static const int IdxConsumed = 6;
static const int VtxConsumed = 5;
};
struct RectRenderer {
// struct RectRenderer {
// RectRenderer(ImU32 col) { Col = col; }
// inline void operator()(ImDrawList& DrawList, const ImVec2& p1, const ImVec2& p2, ImVec2 uv) {
// DrawList._VtxWritePtr[0].pos.x = p1.x;
// DrawList._VtxWritePtr[0].pos.y = p1.y;
// DrawList._VtxWritePtr[0].uv = uv;
// DrawList._VtxWritePtr[0].col = Col;
// DrawList._VtxWritePtr[1].pos.x = p2.x;
// DrawList._VtxWritePtr[1].pos.y = p1.y;
// DrawList._VtxWritePtr[1].uv = uv;
// DrawList._VtxWritePtr[1].col = Col;
// DrawList._VtxWritePtr[2].pos.x = p2.x;
// DrawList._VtxWritePtr[2].pos.y = p2.y;
// DrawList._VtxWritePtr[2].uv = uv;
// DrawList._VtxWritePtr[2].col = Col;
// DrawList._VtxWritePtr[3].pos.x = p1.x;
// DrawList._VtxWritePtr[3].pos.y = p2.y;
// DrawList._VtxWritePtr[3].uv = uv;
// DrawList._VtxWritePtr[3].col = Col;
// DrawList._VtxWritePtr += 4;
// DrawList._IdxWritePtr[0] = (ImDrawIdx)(DrawList._VtxCurrentIdx);
// DrawList._IdxWritePtr[1] = (ImDrawIdx)(DrawList._VtxCurrentIdx + 1);
// DrawList._IdxWritePtr[2] = (ImDrawIdx)(DrawList._VtxCurrentIdx + 3);
// DrawList._IdxWritePtr[3] = (ImDrawIdx)(DrawList._VtxCurrentIdx + 1);
// DrawList._IdxWritePtr[4] = (ImDrawIdx)(DrawList._VtxCurrentIdx + 2);
// DrawList._IdxWritePtr[5] = (ImDrawIdx)(DrawList._VtxCurrentIdx + 3);
// DrawList._IdxWritePtr += 6;
// DrawList._VtxCurrentIdx += 4;
// }
// ImU32 Col;
// static const int IdxConsumed = 6;
// static const int VtxConsumed = 4;
// };
RectRenderer(ImU32 col) { Col = col; }
inline void render(ImDrawList& DrawList, const ImVec2& p1, const ImVec2& p2, ImVec2 uv) {
DrawList._VtxWritePtr[0].pos.x = p1.x;
DrawList._VtxWritePtr[0].pos.y = p1.y;
DrawList._VtxWritePtr[0].uv = uv;
DrawList._VtxWritePtr[0].col = Col;
DrawList._VtxWritePtr[1].pos.x = p2.x;
DrawList._VtxWritePtr[1].pos.y = p1.y;
DrawList._VtxWritePtr[1].uv = uv;
DrawList._VtxWritePtr[1].col = Col;
DrawList._VtxWritePtr[2].pos.x = p2.x;
DrawList._VtxWritePtr[2].pos.y = p2.y;
DrawList._VtxWritePtr[2].uv = uv;
DrawList._VtxWritePtr[2].col = Col;
DrawList._VtxWritePtr[3].pos.x = p1.x;
DrawList._VtxWritePtr[3].pos.y = p2.y;
DrawList._VtxWritePtr[3].uv = uv;
DrawList._VtxWritePtr[3].col = Col;
DrawList._VtxWritePtr += 4;
DrawList._IdxWritePtr[0] = (ImDrawIdx)(DrawList._VtxCurrentIdx);
DrawList._IdxWritePtr[1] = (ImDrawIdx)(DrawList._VtxCurrentIdx + 1);
DrawList._IdxWritePtr[2] = (ImDrawIdx)(DrawList._VtxCurrentIdx + 3);
DrawList._IdxWritePtr[3] = (ImDrawIdx)(DrawList._VtxCurrentIdx + 1);
DrawList._IdxWritePtr[4] = (ImDrawIdx)(DrawList._VtxCurrentIdx + 2);
DrawList._IdxWritePtr[5] = (ImDrawIdx)(DrawList._VtxCurrentIdx + 3);
DrawList._IdxWritePtr += 6;
DrawList._VtxCurrentIdx += 4;
}
ImU32 Col;
static const int IdxConsumed = 6;
static const int VtxConsumed = 4;
};
template <typename Getter, typename Transformer, typename Renderer>
inline void RenderPrimitives(Getter getter, Transformer transformer, Renderer renderer, ImDrawList& DrawList, bool cull) {
ImVec2 p1 = transformer(getter(0));
int prims = getter.Count - 1;
int i1 = 1;
template <typename Renderer>
inline void RenderPrimitives(Renderer renderer, ImDrawList& DrawList, bool cull) {
int prims_remain = renderer.Prims;
int prims_culled = 0;
int idx = 0;
const ImVec2 uv = DrawList._Data->TexUvWhitePixel;
while (prims) {
// find how many can be reserved up to end of current draw command's limit
@ -2302,20 +2327,13 @@ inline void RenderPrimitives(Getter getter, Transformer transformer, Renderer re
DrawList.PrimUnreserve(prims_culled * Renderer::IdxConsumed, prims_culled * Renderer::VtxConsumed);
prims_culled = 0;
}
cnt = (int)ImMin(size_t(prims), (((size_t(1) << sizeof(ImDrawIdx) * 8) - 1 - 0/*DrawList._VtxCurrentIdx*/) / Renderer::VtxConsumed));
DrawList.PrimReserve(cnt * Renderer::IdxConsumed, cnt * Renderer::VtxConsumed); // reserve new draw command
}
prims -= cnt;
for (int ie = i1 + cnt; i1 != ie; ++i1) {
ImVec2 p2 = transformer(getter(i1));
// TODO: Put the cull check inside of each Renderer
if (!cull || gp.BB_Plot.Overlaps(ImRect(ImMin(p1, p2), ImMax(p1, p2))))
renderer.render(DrawList, p1, p2, uv);
else
for (int ie = idx + cnt; idx != ie; ++idx) {
if (!renderer(DrawList, uv, idx))
prims_culled++;
p1 = p2;
}
}
if (prims_culled > 0)
@ -2334,7 +2352,7 @@ inline void RenderLineStrip(Getter getter, Transformer transformer, ImDrawList&
}
}
else {
RenderPrimitives(getter, transformer, LineRenderer(col, line_weight), DrawList, cull);
RenderPrimitives(LineRenderer<Getter,Transformer>(getter, transformer, col, line_weight), DrawList, cull);
}
}
@ -2342,11 +2360,11 @@ template <typename Getter, typename Transformer>
inline void RenderLineFill(Getter getter, Transformer transformer, ImDrawList& DrawList, ImU32 col_fill) {
// TODO: Culling
float zero = transformer(0,0).y;
RenderPrimitives(getter, transformer, FillRenderer(col_fill, zero), DrawList, false);
// RenderPrimitives(getter, transformer, LineFillRenderer(col_fill, zero), DrawList, false);
}
//-----------------------------------------------------------------------------
// DATA GETTERS
// GETTERS
//-----------------------------------------------------------------------------
inline int PosMod(int l, int r) {