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ImFontAtlas: Draft of an api to submit custom rectangle (not exposed). Atlas default texture chunk using it. (WIP: we are still storing mouse UV outside in GImGui)

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omar
2017-08-17 19:36:48 +08:00
parent 4a7e1ff4d4
commit d970957e2d
2 changed files with 145 additions and 95 deletions
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16
imgui.h
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@ -1388,10 +1388,22 @@ struct ImFontAtlas
ImVec2 TexUvWhitePixel; // Texture coordinates to a white pixel
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.
// Private
// [Private] User rectangle for packing custom texture data into the atlas.
struct CustomRect
{
unsigned int ID; // Input // User ID. <0x10000 for font mapped data (WIP/UNSUPPORTED), >=0x10000 for other texture data
unsigned short Width, Height; // Input // Desired rectangle dimension
unsigned short X, Y; // Output // Packed position in Atlas
CustomRect() { ID = 0xFFFFFFFF; Width = Height = 0; X = Y = 0xFFFF; }
bool IsPacked() const { return X != 0xFFFF; }
};
// [Private] Members
ImVector<CustomRect> CustomRects; // Rectangles for packing custom texture data into the atlas.
ImVector<ImFontConfig> ConfigData; // Internal data
IMGUI_API bool Build(); // Build pixels data. This is automatically for you by the GetTexData*** functions.
IMGUI_API void RenderCustomTexData(int pass, void* rects);
IMGUI_API int CustomRectRegister(unsigned int id, int width, int height);
IMGUI_API void CustomRectCalcUV(const CustomRect* rect, ImVec2* out_uv_min, ImVec2* out_uv_max);
};
// Font runtime data and rendering