mirrors/imgui
1
0
Fork 0
mirror of https://github.com/ocornut/imgui.git synced 2026-08-21 06:41:09 +00:00
Code Issues Packages Projects Releases Wiki Activity

DrawList: optimize non-AA non-rounded case of AddRect()

Browse Source
This commit is contained in:
Mikko Mononen
2026-05-08 13:44:14 +03:00
committed by ocornut
parent 3bfabe3163
commit 79473f30a6
1 changed files with 25 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

33
imgui_draw.cpp
View File

@@ -1773,17 +1773,34 @@ void ImDrawList::AddRect(const ImVec2& p_min, const ImVec2& p_max, ImU32 col, fl
s_rounding += s_thickness / 2;
}
// FIXME-WIP: Why isn't rounding offset in the _StrokeInside case?
if (s_rounding <= 0 || (flags & ImDrawFlags_RoundCornersMask_) == ImDrawFlags_RoundCornersNone)
{
// FIXME-WIP: This could use half the number of vertices.
const ImVec2 opaque_uv = _Data->TexUvWhitePixel;
const float t = (float)s_thickness * _FringeScale;
PrimReserve(6*4, 4*4);
PrimRect(ImVec2(s_min.x, s_min.y), ImVec2(s_max.x, s_min.y + t), col);
PrimRect(ImVec2(s_min.x, s_min.y + t), ImVec2(s_min.x + t, s_max.y - t), col);
PrimRect(ImVec2(s_max.x - t, s_min.y + t), ImVec2(s_max.x, s_max.y - t), col);
PrimRect(ImVec2(s_min.x, s_max.y - t), ImVec2(s_max.x, s_max.y), col);
PrimReserve(8*3, 8);
const ImDrawIdx idx = (ImDrawIdx)_VtxCurrentIdx;
IM_APPEND_VTX(s_min.x, s_min.y, opaque_uv, col);
IM_APPEND_VTX(s_min.x + t, s_min.y + t, opaque_uv, col);
IM_APPEND_VTX(s_max.x, s_min.y, opaque_uv, col);
IM_APPEND_VTX(s_max.x - t, s_min.y + t, opaque_uv, col);
IM_APPEND_VTX(s_max.x, s_max.y, opaque_uv, col);
IM_APPEND_VTX(s_max.x - t, s_max.y - t, opaque_uv, col);
IM_APPEND_VTX(s_min.x, s_max.y, opaque_uv, col);
IM_APPEND_VTX(s_min.x + t, s_max.y - t, opaque_uv, col);
IM_APPEND_TRI(idx + 0, idx + 3, idx + 1);
IM_APPEND_TRI(idx + 0, idx + 2, idx + 3);
IM_APPEND_TRI(idx + 2, idx + 5, idx + 3);
IM_APPEND_TRI(idx + 2, idx + 4, idx + 5);
IM_APPEND_TRI(idx + 4, idx + 7, idx + 5);
IM_APPEND_TRI(idx + 4, idx + 6, idx + 7);
IM_APPEND_TRI(idx + 6, idx + 1, idx + 7);
IM_APPEND_TRI(idx + 6, idx + 0, idx + 1);
return;
}
if ((Flags & ImDrawListFlags_RoundCornersUseTex) && s_thickness <= IM_DRAWLIST_TEX_CORNERS_THICKNESS_MAX && s_rounding <= IM_DRAWLIST_TEX_CORNERS_ROUNDING_MAX)