alysbrooks-public » games » isometric-park-fna

Location: alysbrooks-public/games/isometric-park-fna/ImGui.NET/ImDrawList.Manual.cs

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Commit Description:
Optimize PreserveCounts and only recalculate when needed....
Commit Description:
Optimize PreserveCounts and only recalculate when needed. Previously would recalculate preservecounts every Update call (~1 per frame), which isn't necessary when there's no tick. Might be some room to tweak, like doing these updates only when preserves change. Some measurements: This takes about 30ms versus the .25 ms with no preserve (then like .0002ms). When the map is filled up with preserve, about 35ms and 9ms. With a handful of cells, it's more like 0.8ms (before JIT optimizes most of it away).
References:
r589:842194b6bfa6 m6-tiles-and-trees
File last commit:
r505:2e433b363704 default
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ImGui.NET/ImDrawList.Manual.cs
37 lines | 1.7 KiB | text/x-csharp | CSharpLexer
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using System.Numerics;
using System.Text;
namespace ImGuiNET
{
public unsafe partial struct ImDrawListPtr
{
public void AddText(Vector2 pos, uint col, string text_begin)
{
int text_begin_byteCount = Encoding.UTF8.GetByteCount(text_begin);
byte* native_text_begin = stackalloc byte[text_begin_byteCount + 1];
fixed (char* text_begin_ptr = text_begin)
{
int native_text_begin_offset = Encoding.UTF8.GetBytes(text_begin_ptr, text_begin.Length, native_text_begin, text_begin_byteCount);
native_text_begin[native_text_begin_offset] = 0;
}
byte* native_text_end = null;
ImGuiNative.ImDrawList_AddText_Vec2(NativePtr, pos, col, native_text_begin, native_text_end);
}
public void AddText(ImFontPtr font, float font_size, Vector2 pos, uint col, string text_begin)
{
ImFont* native_font = font.NativePtr;
int text_begin_byteCount = Encoding.UTF8.GetByteCount(text_begin);
byte* native_text_begin = stackalloc byte[text_begin_byteCount + 1];
fixed (char* text_begin_ptr = text_begin)
{
int native_text_begin_offset = Encoding.UTF8.GetBytes(text_begin_ptr, text_begin.Length, native_text_begin, text_begin_byteCount);
native_text_begin[native_text_begin_offset] = 0;
}
byte* native_text_end = null;
float wrap_width = 0.0f;
Vector4* cpu_fine_clip_rect = null;
ImGuiNative.ImDrawList_AddText_FontPtr(NativePtr, native_font, font_size, pos, col, native_text_begin, native_text_end, wrap_width, cpu_fine_clip_rect);
}
}
}