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Texture-based thick lines: Remove unnecessary indirection in fetching UV data, removed lerp call, renames, tweaks.

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This commit is contained in:
omar
2020-05-16 16:55:05 +02:00
parent a07c8b6999
commit 78d6bdf080
5 changed files with 58 additions and 60 deletions
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17
imgui.h
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@ -1439,7 +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 AntiAliasedLinesUseTexData; // Draw anti-aliased lines using textures where possible.
bool AntiAliasedLinesUseTex; // Enable anti-aliased lines/borders using textures where possible. Requires back-end to render with bilinear filtering.
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.
@ -1897,6 +1897,11 @@ struct ImColor
// Hold a series of drawing commands. The user provides a renderer for ImDrawData which essentially contains an array of ImDrawList.
//-----------------------------------------------------------------------------
// The maximum line width to bake anti-aliased textures for. Build atlas with ImFontAtlasFlags_NoAALines to disable baking.
#ifndef IM_DRAWLIST_TEX_AA_LINES_WIDTH_MAX
#define IM_DRAWLIST_TEX_AA_LINES_WIDTH_MAX (63)
#endif
// ImDrawCallback: Draw callbacks for advanced uses [configurable type: override in imconfig.h]
// NB: You most likely do NOT need to use draw callbacks just to create your own widget or customized UI rendering,
// you can poke into the draw list for that! Draw callback may be useful for example to:
@ -2000,8 +2005,8 @@ 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_AntiAliasedLinesUseTexData = 1 << 3 // Should anti-aliased lines be drawn using textures where possible?
ImDrawListFlags_AntiAliasedLinesUseTex = 1 << 2, // Should anti-aliased lines be drawn using textures where possible?
ImDrawListFlags_AllowVtxOffset = 1 << 3 // Can emit 'VtxOffset > 0' to allow large meshes. Set when 'ImGuiBackendFlags_RendererHasVtxOffset' is enabled.
};
// Draw command list
@ -2221,7 +2226,7 @@ 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_NoAALines = 1 << 2 // Don't build anti-aliased line textures into the atlas
ImFontAtlasFlags_NoAntiAliasedLines = 1 << 2 // Don't build anti-aliased line textures into the atlas (save a little texture memory). They will be rendered using polygons (a little bit more expensive)
};
// Load and rasterize multiple TTF/OTF fonts into a same texture. The font atlas will build a single texture holding:
@ -2322,11 +2327,11 @@ struct ImFontAtlas
ImVector<ImFont*> Fonts; // Hold all the fonts returned by AddFont*. Fonts[0] is the default font upon calling ImGui::NewFrame(), use ImGui::PushFont()/PopFont() to change the current font.
ImVector<ImFontAtlasCustomRect> CustomRects; // Rectangles for packing custom texture data into the atlas.
ImVector<ImFontConfig> ConfigData; // Configuration data
ImVec4 TexUvAALines[IM_DRAWLIST_TEX_AA_LINES_WIDTH_MAX + 1]; // UVs for anti-aliased line textures
// [Internal] Packing data
int PackIdMouseCursors; // Custom texture rectangle ID for white pixel and mouse cursors
int AALineRectId; // Custom texture rectangle ID for anti-aliased lines
ImVector<ImVec4> TexUvAALines; // UVs for anti-aliased line textures
int PackIdAALines; // Custom texture rectangle ID for anti-aliased lines
#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
typedef ImFontAtlasCustomRect CustomRect; // OBSOLETED in 1.72+