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Texture-based thick lines: Initial version of AA line drawing using textures (press SHIFT to enable)

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Ben Carter
2020-01-13 14:24:55 +09:00
committed by omar
parent 8e4046e13b
commit 1d3c3070d8
5 changed files with 206 additions and 27 deletions
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10
imgui.h
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@ -1439,6 +1439,7 @@ struct ImGuiStyle
ImVec2 DisplaySafeAreaPadding; // If you cannot see the edges of your screen (e.g. on a TV) increase the safe area padding. Apply to popups/tooltips as well regular windows. NB: Prefer configuring your TV sets correctly!
float MouseCursorScale; // Scale software rendered mouse cursor (when io.MouseDrawCursor is enabled). May be removed later.
bool AntiAliasedLines; // Enable anti-aliased lines/borders. Disable if you are really tight on CPU/GPU.
bool TexturedAntiAliasedLines; // Draw anti-aliased lines using textures where possible.
bool AntiAliasedFill; // Enable anti-aliased edges around filled shapes (rounded rectangles, circles, etc.). Disable if you are really tight on CPU/GPU.
float CurveTessellationTol; // Tessellation tolerance when using PathBezierCurveTo() without a specific number of segments. Decrease for highly tessellated curves (higher quality, more polygons), increase to reduce quality.
float CircleSegmentMaxError; // Maximum error (in pixels) allowed when using AddCircle()/AddCircleFilled() or drawing rounded corner rectangles with no explicit segment count specified. Decrease for higher quality but more geometry.
@ -1997,7 +1998,8 @@ enum ImDrawListFlags_
ImDrawListFlags_None = 0,
ImDrawListFlags_AntiAliasedLines = 1 << 0, // Enable anti-aliased lines/borders (*2 the number of triangles for 1.0f wide line or lines thin enough to be drawn using textures, otherwise *3 the number of triangles)
ImDrawListFlags_AntiAliasedFill = 1 << 1, // Enable anti-aliased edge around filled shapes (rounded rectangles, circles).
ImDrawListFlags_AllowVtxOffset = 1 << 2 // Can emit 'VtxOffset > 0' to allow large meshes. Set when 'ImGuiBackendFlags_RendererHasVtxOffset' is enabled.
ImDrawListFlags_AllowVtxOffset = 1 << 2, // Can emit 'VtxOffset > 0' to allow large meshes. Set when 'ImGuiBackendFlags_RendererHasVtxOffset' is enabled.
ImDrawListFlags_TexturedAALines = 1 << 3 // Should anti-aliased lines be drawn using textures where possible?
};
// Draw command list
@ -2216,7 +2218,8 @@ enum ImFontAtlasFlags_
{
ImFontAtlasFlags_None = 0,
ImFontAtlasFlags_NoPowerOfTwoHeight = 1 << 0, // Don't round the height to next power of two
ImFontAtlasFlags_NoMouseCursors = 1 << 1 // Don't build software mouse cursors into the atlas (save a little texture memory)
ImFontAtlasFlags_NoMouseCursors = 1 << 1, // Don't build software mouse cursors into the atlas (save a little texture memory)
ImFontAtlasFlags_NoAALines = 1 << 2 // Don't build anti-aliased line textures into the atlas
};
// Load and rasterize multiple TTF/OTF fonts into a same texture. The font atlas will build a single texture holding:
@ -2320,6 +2323,9 @@ struct ImFontAtlas
// [Internal] Packing data
int PackIdMouseCursors; // Custom texture rectangle ID for white pixel and mouse cursors
int AALineMaxWidth; // Maximum line width to build anti-aliased textures for
ImVector<int> AALineRectIds; // Custom texture rectangle IDs for anti-aliased lines
ImVector<ImVec4> TexUvAALines; // UVs for anti-aliased line textures
#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
typedef ImFontAtlasCustomRect CustomRect; // OBSOLETED in 1.72+